407results about How to "Solve installation difficulties" patented technology

The invention discloses a self-carried absolute position detecting device of a motor and a detecting method. The detecting device comprises a coder code disk with a notch and an uninterrupted coder circuit. The function of the device is realized by the built-in absolute position detecting method. The invention can be used for detecting the absolute position of the motor; and when being used for an EPS (electric power steering gear), the motor with the absolute position detecting device can be used for detecting the angle position of a steering wheel.

Disclosed is a multilevel multi-curve single-layer welding ball steel structure net rack. Each layer of the multilevel multi-curve single-layer welding ball steel structure net rack comprises a structurally separated rod and a hollow ball which are connected into a whole in a welded manner; an elastic support positioned on a reinforced concrete vertical column is connected with each layer of the multilevel multi-curve single-layer welding ball steel structure net rack through a net rack supporting part; the elastic support is capable of inching in a certain direction or an optional direction, and the net rack further comprises a cable-supported structure consisting of a cable-supported structure support, a cable-supported ball, a pull cable and a cable-supported ball supporting rod. The net rack is unique in appearance and suitable for serving as a building steel structure support which has high requirements on the appearance of a building, is unique in appearance and needs to display arc shapes, line shapes, shell shapes and staggered levels, and the construction method of the net rack can be used for effectively controlling space coordinates and positional accuracy of components of the net rack, structural stability and structural appearance diversity of the net rack during installation, so that the requirements of a building structure on high, large, difficult and multidirectional change can be met.

The invention relates to an intelligent protection device for online detection of head / tail wheels of a mining belt conveyor. The intelligent protection device comprises a data collection module, an intelligent protection module, a data transmission module and an abnormity alarm system, wherein the data transmission module is respectively connected with the data collection module and the intelligent protection module; the intelligent protection device is characterized in that the data collection module is a multi-dimensional data collection module, the abnormity alarm system is in communication connection with an output end of the data transmission module through Ethernet or a Wifi signal, and the abnormity alarm system is formed by a remote service management module and a big data-based diagnostic analysis module which is used for collecting and modeling normal multi-dimensional data which are collected by the multi-dimensional data collection module by adopting an abnormity detection algorithm, classifying future data and transmitting an alarm signal to abnormity data. According to the intelligent protection device disclosed by the invention, remote monitoring, fault alarm and remote control on the mining belt conveyor are realized, comprehensive and all-weather diagnostic service is realized, in-time fault discovery and in-time shut down can be carried out through remote control, and the loss is reduced to be minimum.

The invention provides a method for measuring a rotational inertia and an inertia product of a small-sized air vehicle. According to the method, based on a double-suspension-wire method, the measurement can be finished without accurately measuring a mass center position of the air vehicle in advance; meanwhile, the method has ideal precision and only needs to use simple materials including a thin rope, an adhesive tape, a stopwatch, a slender rod and the like; the complicated measurement of the rotational inertia of the air vehicle can be finished by simple operation. The method comprises the following steps: step 1, mounting the air vehicle and adjusting the balance; step 2, measuring the rotational inertia of a main axis corresponding to three body axes of the air vehicle; and step 3, changing a swinging posture of the air vehicle and solving the inertia product by a formula.

The invention provides an automatic rolling device for a large-diameter long-section hollow cylinder, and belongs to the field of assembly equipment. The automatic rolling device comprises a rolling ring and at least two rolling frame vehicles, the rolling ring is fixedly arranged on the outer ring of a cylinder, the rolling frame vehicle comprises an arc-shaped supporting plate, a guide groove isformed in the upper end of the supporting plate, a rolling wheel rotationally connected with the guide groove is erected in the guide groove and drives the rolling ring to rotate along the axis of the rolling ring, the rolling ring is arranged in the guide groove and tangent to the rolling wheel, a plurality of positioning holes are formed in the rolling ring, a telescopic A-axis positioning mechanism is arranged outside the supporting plate, and the A-axis positioning mechanism extends into the positioning hole in an extending state. By the device, angle and axial positioning can be achieved, the rolling risk caused by eccentricity of rocket products and the difficulty of rolling ring installation caused by structural interference of the rocket products are overcome, the efficiency of carrier rocket general assembly is effectively improved, and the quality of carrier rocket assembly and the safety of workers in work are guaranteed.

The invention relates to a loop gravity-assisted heat pipe heat transfer device which mainly comprises an evaporator, a condenser, a steam pipe and a liquid pipe, wherein the evaporator is pipe-shaped, the evaporator is sealed and is filled with a working medium, an inlet of the steam pipe slightly extends into the top of the evaporator, and an outlet of the liquid pipe passes through the top of the evaporator and extends to the bottom of the evaporator; and an outlet of the steam pipe is communicated with the upper part of the condenser, and an inlet of the liquid pipe is communicated with the lower part of the condenser. The loop gravity-assisted heat pipe heat transfer device disclosed by the invention has excellent heat transfer performance and application expandability, can avoid installation difficulty, meets heat transfer requirements of vacuum tube heat collectors with any sizes and has the advantages of reliable structure and manufacturing process and lower cost.

The invention discloses a self-adapting typed Z-pinch wire matrix load and its preparing method. Fixing connecting spring, support bar, key-groove and key-bar etc. between the asistant location plateand localizer of the wire matrix load makes the wire matrix load automatically adapt change of space between electrodes of target. The invention solves several issues of the wire matrix load preferably such as deformation, difficult to install and improves performance of electric contact between load wire and localizer. It is convenient for assembly, adjustment, storage and transport of the wire matrix load.

The invention relates to an electric strength inspection device for oil paper compound insulation oil during flowing, belongs to the technical field of high voltage and insulation, and aims at solving the problems of difficulty in mounting and frequent flashover caused by processing errors of the existing electric strength inspection devices. The electric strength inspection device comprises a high-voltage bushing, a lower connecting piece of the high-voltage bushing, an upper electrode connecting piece, an upper electrode, an upper electrode insulating member, a lower electrode insulating member, an insulating screw rod, an insulating nut, a lower electrode, an insulating paper board, an oil duct, an earthing bolt, an oil inlet, an oil outlet, an oil inlet connecting piece and an oil outlet connecting piece, wherein the low connecting piece of the high-voltage bushing, the upper electrode connecting piece, the upper electrode, the upper electrode insulating member, the lower electrode insulating member, the insulating screw rod, the insulating nut, the lower electrode, the insulating paper board, the oil duct and the earthing bolt are arranged in a high-voltage test box, the upper electrode is arranged right above the lower electrode and is embedded in the upper electrode insulating member, the lower electrode is embedded in the lower electrode insulating member, and the upper electrode insulating member is arranged above the lower electrode insulating member.

The invention relates to vehicle sunroof production equipment and technology. The vehicle sunroof production equipment comprises a crossbeam and guide rail riveting work station, a front frame riveting work station, a chain chute component and air deflector assembling work station, a mechanical set assembling work station, a sun shield assembling work station, a glass and motor assembling work station, an initial running-in work station, a surface difference testing work station and a noise testing work station which are connected in sequence; an assembly part is conveyed to the next work station with a conveyor belt; after the subsequent work stations are positioned, the work station components are assembled; manual moving and positioning processes are avoided, the efficiency and precision are improved.

Disclosed is a performance testing device of an automobile clutch system. The automobile clutch system comprises a clutch pedal, a clutch master cylinder, a clutch slave cylinder, a release bearing, a clutch and a flywheel. The performance testing device comprises a clutch pedal loading system, a clutch pedal mounting rack, an installation bench, a linear bearing and a plurality of sensors. The clutch pedal is installed on the clutch pedal mounting rack. The installation bench comprises a base, a release bearing mounting rack, a linear bearing mounting rack and a flywheel mounting rack. The release bearing mounting rack, the linear bearing mounting rack and the flywheel mounting rack are successively arranged along the base. The release bearing mounting rack is disposed near the clutch pedal mounting rack. The sensors comprise a first force sensor for detecting a pedal force of the clutch pedal, a first displacement sensor for detecting a pedal stroke of the clutch pedal, a second force sensor for detecting a separating force of the clutch, and a second displacement sensor for detecting a separating stroke of the clutch.

The invention discloses a box taking and placing mechanical arm. The mechanical arm comprises a supporting frame, a mechanical claw device mounted on the supporting frame and an offset drive device driving the mechanical claw device to move; the mechanical claw device comprises a clamping mechanism fixedly connected with the offset drive device and two symmetrically-arranged clamping plates; one end of each clamping plate serves as a connecting part, and the other end of each clamping plate serves as a clamping part; the connecting parts are fixedly connected with the clamping mechanism, and the clamping parts incline towards the inner side relative to the connecting parts; and the box taking and placing mechanical arm can replace manpower, and take and place packaging boxes like a medicine box on a goods shelf, manpower is saved, meanwhile, work efficiency is improved, the clamping parts incline towards the inner side, fixed-point clamping of the boxes can be achieved, and compared with a full-contact type mechanical claw in the prior art, the box taking and placing mechanical arm has the beneficial effects that positioning and clamping are easier, and clamping missing cannot appear.

The invention discloses a universal spiral compaction type grounding wire operating rod. The universal spiral compaction type grounding wire operating rod is characterized by comprising a lead clamp assembly, an adjusting assembly, an operating rod assembly and a transmission handle assembly which are sequentially connected, and further comprising an insertion type connector used for connecting an insulation operating rod and a limit stop nail, wherein lead clamps are provided with screws and spiral compaction bolts connected with universal joints and clamp heads connected with a steel wire transmission soft shaft, the adjusting assembly comprises supporting pipes used for fixing the universal joints and the steel wire transmission soft shaft, the operating rod assembly comprises the insulation operating rods and insulation transmission rods which are arranged in the insulation operating rods and are connected with the steel wire transmission soft shaft and a transmission handle clamp head, and the transmission handle assembly is provided with a thread type connection head used for connecting the operating rods. The universal spiral compaction type grounding wire operating rod is advantaged in that leads are made to be clamped in any adjustment angle of the horizontal direction 360 DEG and the vertical direction about 120 DEG, the quantity of the operating rods is reduced through employing an assembly connection mode, exchange of the lead clamps in different modes is facilitated, and cost is reduced.

The embodiment of the invention discloses a robot-dedicated mechanical fixture. An end rotary shaft of a robot is utilized as a power source, the power of the end shaft of the robot is transmitted to a first stepped shaft by connecting the first stepped shaft with an end moving shaft of the robot, moreover, the power is transmitted onto a cam via a half-tooth bevel gear, second stepped shafts and third stepped shafts, the cam then alternately rotates by 180 degrees to open and close grabbing plates, and thereby the requirement of the action of clamping a workpiece is met. The robot-dedicated mechanical fixture solves the technical problems of complex structure, difficulty in mounting and instability in use existing in industrial robot fixtures with an additional power source.

The invention discloses a switchgear thermal defect monitoring system, an analysis method and a comprehensive measuring control device thereof. The system comprises an information detecting module, acommunication module and a data processing module, wherein the information detecting module comprises a plurality of data acquisition units at a low-voltage side. The data processing units are respectively mounted in switchgears which are connected with the same bus. The data acquisition unit comprises at least four air temperature detecting loops and at least one current detecting loop. A first air temperature detecting loop is used for an ambient temperature outside the switchgear. A second air temperature detecting loop, a third air temperature detecting loop and a fourth air temperature detecting loop are used for detecting the air temperature of each compartment of the corresponding switchgear. The current detecting loop is used for detecting the load current of the switchgear. Detected data are transmitted to the data processing module through the communication module. The data processing module determines whether a thermal defect of the switchgear exists based on the data transmitted from the communication module. The system can further used for monitoring multiple defects of the switchgear.

The invention discloses a calibration device of gear transmission error detection equipment. The calibration device comprises polygon mounting devices arranged on an input shaft and an output shaft, a polygon is mounted on each polygon mounting device, and the polygons and autocollimators jointly form the calibration device of the gear transmission error detection equipment. The input shaft and the output shaft of a gear assembly are connected with the polygons respectively through the polygon mounting devices, the other end of each polygon is connected with a grating encoder, and the centers of the polygons are coaxial with the input shaft and the output shaft of the gear assembly and rotating shafts of the grating encoders. By the aid of the polygons, the autocollimators and the grating encoders, reliability in calibration of the gear transmission error detection equipment is improved, the problems of difficulty in mounting of the polygons, difficulty in alignment of the rotation centers of the polygons and the like during calibration of the gear transmission error detection equipment are solved, and performance of the gear transmission error detection equipment can be evaluated generally.

The invention discloses a domestic lift comprising a lift car, a backpack frame, a safety tongs triggering device and a safety protective device. The backpack frame is connected to a lift guide rail in a sliding mode and used for fixing the lift car. The safety tongs triggering device is installed on the backpack frame. The safety protective device is installed at the upper end of the lift car or installed at the bottom of a lift shaft. The domestic lift is simple in structure and high in safety performance and occupies a small shaft space.

The invention belongs to the technical field of maintenance and assembly of a rotary drill rig, in particular to an installation guide device of a skeleton sealing ring of a hollow shaft of a rotary drill rig and a use method. The installation guide device of the skeleton sealing ring of the hollow shaft of the rotary drill rig is composed of a cone shaft and a force applying wrench which is plugged with the cone shaft. The middle part of the large-diameter end surface of the cone shaft is provided with an outer-cone threaded post, and the surrounding of an excircle is provided with a thin-wall plug bush. The outer-cone threaded post is in threaded connection with a cone threaded hole arranged on the end surface of the hollow shaft, and the inner surface of the thin-wall plug bush is connected with the outer surface of the hollow shaft in a mode of clearance fit. The small-diameter end of the cone shaft is provided with a through hole plugged with the force applying wrench. The force applying wrench is a cylindrical pin shaft. According to the installation guide device, the problems that the original skeleton sealing ring is difficultly installed, or the precision is poor and the like. The installation guide device is easily operated and is conveniently controlled, adjusted and centered, and the installation precision is ensured. The installation strength is effectively reduced, the manpower resource is saved, and the installation efficiency is improved.

The invention relates to a prefabricated shear wall vertical steel bar positioning device which comprises an elevation clamp, positioning angle steel, a positioning steel sleeve plate, a screwing partand a steel bar protecting pipe. The elevation clamp consists of two semicircular hoops, one semicircular hoop is provided with a protruded limiting block, the positioning angle steel is provided with a rib, a steel bar positioning groove and a screwing hole, and the other side is provided with evenly spaced fixing holes; two sides of the positioning steel sleeve plate formed in the positioning steel sleeve plate are provided with fixing grooves connected with the positioning angle steel fixing holes in the wall direction, the middle and two ends of the steel sleeve plate are provided with pouring ports facilitating concrete pouring, and the two ends are provided with a web plate and a compressing plate which are centrosymmetric. The end, close to a handle, of the screwing part is provided with a limiting thrust bearing, and the end, away from the handle, of the screwing part is provided with a screwing nut. The steel bar protecting pipe is a PVC pipe with one closed end. By adoptingthe scheme, accurate positioning of prefabricated shear wall vertical steel bars and cast-in-situ edge member vertical steel bars can be achieved.

The invention relates to a vehicle clutch system performance test-bench device and a test system comprising the same. The clutch system performance test-bench device comprises a bench main body used for installing and carrying a to-be-tested component, a first support and a second support. The first support is disposed on the bench main body in a manner of being capable of adjusting relative positions, and the first support is suitable to install a vehicle transmission and a flywheel. The second support is disposed on the bench main body in a manner of being capable of adjusting relative positions, and the second support is suitable to install a clutch pedal. In the test-bench device, a clutch system and components (transmissions, flywheels, etc.) related to the clutch system are installed on the bench. The device can completely simulate finished vehicle environment, and meanwhile the device realizes effective measurement on pressure of a hydraulic pipeline and release bearing forces. The device effectively solves problems that component mounting and dismounting on a finished vehicle are not convenient, installation of sensors is difficult, and test cost is too high.

The invention discloses a tool-type cantilever beam and a construction method thereof. A support plate is arranged at one end of joist steel and is vertical to the joist steel; a connection hole which corresponds to the position of an embedded hole in a building external wall is formed in the support plate; the embedded hole is connected with the connection hole through a bolt I, so that vertical fixing of the joist steel on the building external wall is achieved; a locating rod is arranged on the upper surface of the joist steel; a connecting rod is arranged on the lower surface of the joist steel; a flying ring is arranged right above the support plate; the flying ring is connected with the connecting rod through a wire rope. According to the tool-type cantilever beam, the problems that a plurality of profile steel intersections are formed at the parts of internal and external corners in a cantilever scaffold joist steel mounting process, a steel beam and an embedded ring are difficult to locate and the joist steel beam is difficult to install in the prior art are solved; the problems are effectively solved; the steel beam can be installed at any position; meanwhile, the installation cost of the cantilever beam can also be reduced; the material consumption is reduced; the installation speed is also greatly improved; the condition that the time limit for a project is not affected by installation of the cantilever beam is ensured.

The invention provides a bathroom cabinet, water heater, and heat energy-waste water recovery device combination which comprises a bathroom cabinet, a filter, a water pump, a heat exchanger, a water heater, a water flowing device and a complete machine control system. The combination is characterized in that hot water can be supplied to the bathroom cabinet, a shower room or beauty and hairdressing bed equipped with a basin base, as well as other bathing devices being high in hot water consumption, meanwhile, heat energy and waste water from the hot water used by the shower room or beauty and hairdressing bed equipped with the basin base, as well as the other bathing devices being high in hot water consumption can be recovered; when the heat energy and the waste water are recovered, a filtering screen of the filter can be automatically cleaned, and then the filtering screen is not easy to block when being used for a long time; and as the 2-20-process heat exchanger is adopted, the heat recovery efficiency is higher. The combination provided by the invention is simple and convenient to mount, low in electricity consumption power and electricity consumption condition requirement, and higher in energy-saving and water-saving efficiency; during a normal family bathing process, the maximum energy-saving rate can reach 85%, the comprehensive energy-saving rate can reach 70% or above, 90% of the waste water can be recovered, the water temperature can be kept constant, and hot water is available as long as a hot water faucet is opened; and accordingly, the combination is convenient for popularization and use.

The invention discloses an automatic assembly machine for a square rotating micro-sprinkler. The assembly machine comprises a feeding device, an alignment device and a press-in assembly device, wherein the feeding device comprises a square rotating micro-sprinkler vibration disk and a button vibration disk; the alignment device comprises an alignment disk and a button press-down device, a plurality of feeding ports are formed in the alignment disk, and button positioning pin assembly bodies are arranged at the feeding ports correspondingly; the press-in assembly device comprises a main rotating disk and a press-in mechanism, and a button jig is arranged on the main rotating disk. The automatic assembly machine for the square rotating micro-sprinkler can assemble eighty square rotating micro-sprinklers per minute and has the characteristics of being compact in structure, reliable in movement and high in running speed, the problems that the square rotating micro-sprinkler is difficult assemble, time-consuming and labor-consuming are solved, and the automation degree and production efficiency of mounting of the square rotating micro-sprinkler are greatly improved.

The invention relates to a double-lever stretching creep device with a continuously adjustable load and a test method thereof. The device comprises a fixed steel frame, a main load bearing lever, a main load bearing support, an auxiliary load bearing lever, an auxiliary support, a protection device, a constant-load balance weight device, a slidable balance weight device, an adjustable connecting device, a concrete test piece device and a load sensor. The lower ends of the main load bearing support and the auxiliary support are fixedly connected to the fixed steel frame. The main load bearing lever is connected with the main load bearing support by a main bearing; and the auxiliary load bearing lever is connected with the auxiliary support by the main bearing. One end of the main load bearing lever is connected with the fixed steel frame by the concrete test piece device; and the other end of the main load bearing lever is connected with the auxiliary load bearing lever by the adjustable connecting device. According to the r stretching creep device, the gravity load is increased by the double levers and the load amplification factor not lower than a ratio of 10 to 1 can be realized.The whole stretching creep device and scheme are simple and are easy to operate; and the safety and reliability are high.

The invention provides a plug-in type cable head disassembling tool and relates to the technical field of power equipment, which comprising an upper clamping table. The upper clamping table is provided with a leading screw assembly. The leading screw assembly comprises a left half ring, a right half ring, a leading screw, a locking plate, a bolt and a leading screw pressing plate. The left half ring and the right half ring are provided with the locking plate. The left half ring and the right half ring are connected together through the bolt and a nut. The upper side of the left half ring and the upper side of the right half ring are provided with the leading screw pressing plate. The leading screw pressing plate is provided with a threaded hole. The leading screw spirally penetrates through the threaded hole and is inserted into a mounting hole in a lower clamping table. The leading screw is connected with an inner cone arranged below a cable plug-in type head. According to the technical scheme of the invention, the problem in the prior that the stress is not uniformly applied onto a cable terminal head can be effectively solved. Meanwhile, the offset and tilt problems of the cable terminal head of a metal armored cabinet can also be effectively solved. Moreover, the inconvenient installation problem due to the insufficient space of a cable cabin can be effectively solved.

The invention discloses an installation device for a ring magnet, and belongs to the technical field of ion thrusters. The installation device comprises a ring slot, more than two cover boards, more than two installation clips and bolts, wherein the ring magnet comprising more than two permanent magnets is embedded into an annular groove of the ring slot; a gap is not formed between the adjacent permanent magnets; the more than two cover boards are located into the annular groove of the ring slot, and cover the upper surface of the ring magnet; two horizontal parts of each installation clip are propped against the upper end surface and the lower end surface of the ring slot respectively; more than two installation clips are evenly distributed along the circumferential direction of the ring slot; and after the bolts and threaded holes of the installation clips are in screw-thread fit, the end parts of screws of the bolts pass through axial through holes of the ring slot and are propped against the lower surfaces of the permanent magnets, so that the cover boards on the upper surfaces of the permanent magnets are propped against the lower surfaces of the horizontal parts of the end parts of the installation clip. The installation device and the permanent magnets are arranged on the ion thruster as a whole, so that the installation difficulty that the ring magnet comprising the permanent magnets is directly installed on the ion thruster is lowered.

The invention discloses a high-precision offshore wind turbine hoisting and mounting ship which comprises pile leg positioning systems, platform position-adjusting systems and a hoisting system. The pile leg positioning systems are arranged on a larboard and a starboard of the ship, each pile leg positioning system comprises a positioning pile, a lateral ship-moving device and an operating system, both the platform position-adjusting systems and the hoisting system are arranged on a truss of the ship, each platform position-adjusting system comprises an adjusting platform, a barrel holding device and a longitudinal adjuster, and the hoisting system comprises a hanging bracket and an electric winch. By the high-precision offshore wind turbine hoisting and mounting ship, transverse position and longitudinal position of a wind turbine and a wind turbine foundation can be accurately adjusted, quick one-step mounting of the whole offshore wind turbine can be realized, the problem of difficulty in mounting of the offshore wind turbine in an intertidal zone can be solved, and mounting of the wind turbine is low in construction difficulty and short in construction period.

The invention provides a rotor of permanent magnetic arc welding generator, composed of a shaft, an aluminum yoke, a magnetic block, and an annular press cover, wherein the cylinder surface of the aluminum yoke is provided with 12 T-type grooves, 12 rectangle magnetic blocks are embedded into the T-type grooves to be pressed and fixed via the annular press cover and a press cover bolt. The invention resolves the hard installment problem of magnetic block. The aluminum yoke is provided with three ventilation holes screwed on axis, to rotate and generate axial airflow to cool the rotor, thereby effectively improving the efficiency of arc welding generator.

The invention provides a tower crane attachment device. The device includes an attachment frame, adjustable support single pieces and adjustable fixing bases. The attachment frame is arranged on a tower crane standard section. The adjustable fixing bases are arranged on an attachment device fixing plane. The adjustable support single pieces connect the attachment frame and the adjustable fixing bases. The mounting angles between the attachment and the adjustable fixing bases are adjustable through the cooperation of the attachment frame, adjustable support single pieces and adjustable fixing bases. The attachment device of the invention effectively solves the problem that an attachment frame on a tower crane and fixing points on a building are not in the same plane in the prior art. The problem that the standard section is prone to deformation, bending and breaking due to small stress surface of the tower crane caused by the direct contact between the attachment frame and the tower crane standard section in the prior art is improved through the arrangement of guard plate groups. The attachment device of the invention can be universally applied to standard sections of different specifications by arranging the size of the attachment frame to be adjustable.

The invention provides a supporting structure for mounting of a roof beam string. The supporting structure comprises a supporting single-piece structure, transverse movable tie bars and a supporting upper end operation platform. A lattice type supporting structure is composed of the supporting single-piece structure and the transverse movable tie bars. The supporting single-piece structure comprises stand bars and web members. One ends of the transverse movable tie bars are hinged to the supporting single-piece structure, and the other ends of the transverse movable tie bars are detachably connected with the supporting single-piece structure through nuts. The supporting upper end operation platform comprises an elevation adjustment template, a jack and operation platform enclosing handrails. By adoption of the supporting structure, mounting of beam string segments and stay ropes can be achieved at the same time, the problem that the stay ropes are difficult to mount after the roof beam string segments are mounted is solved, the mounting efficiency of the roof beam string is improved, the mounting and positioning precision of the roof beam string is increased, and the error rate is decreased.