47results about How to "Solve the installation space" patented technology

The invention discloses a zigzag tooth labyrinth sealing structure and a mounting method thereof and belongs to the technical field of sealing devices. The labyrinth sealing structure comprises a seal mounting hole and a shaft, wherein the seal mounting hole is internally provided with a sealing body; the sealing body and the shaft form a labyrinth seal; the seal mounting hole is provided with a horizontal guide slot and an annular limiting slot; the horizontal guide slot and the annular limiting slot are communicated; the sealing body comprises an upper sealing body and a lower sealing body; the outer side of the sealing body is provided with a guide key; the upper sealing body and the lower sealing body respectively slide into the annular limiting slot along the horizontal guide slot by virtue of the guide keys so as to form cylindrical seal teeth in a matching manner; and the cylindrical sealing teeth and the sealing teeth on the shaft form a zigzag tooth labyrinth seal. The sealing body and the shaft form the zigzag tooth labyrinth seal, so that the problem that the mounting space is limited can be solved; the zigzag tooth labyrinth seal also has a better sealing effect; and furthermore, the zigzag tooth labyrinth seal is simple in structure and convenient and easy to maintain.

A compressor of a turbocharger is described and comprises a compressor housing, a compressor wheel with compressor blades which is mounted therein, and a compressor inlet. The compressor inlet comprises, at least in a section adjacent to the compressor housing, an inner pipe and an outer pipe surrounding the inner pipe. The inner pipe is directed toward the radially inner region of the compressor blades and the outer pipe is directed toward the radially outer region of the compressor blades. The passage cross-section of the outer pipe and / or of the inner pipe can be at least partially blocked, so that the compressor blades can be exposed to a variable flow. The approach flow to the compressor wheel is therefore optimized as a function of the engine load.

The invention relates to a transmission connecting mechanism device for a power takeoff and a gear pump, mainly comprising the power takeoff and the gear pump, wherein the power takeoff and the gear pump are in transmission connection through a connecting mechanism; and the connecting mechanism comprises a connecting sleeve, a spline connecting sleeve I, a spline connecting sleeve II and a spline connecting sleeve III. The device has the beneficial effects that the service life of the gear pump and transmission parts are improved, potential safety hazard of imbalance of a transmission shaft is eliminated, the transmission shaft and a gear pump cradle are not required for self-discharging and connection on a hydraulic pump, and the power takeoff is not required to replace and can be directly mounted with a connecting body and the gear pump, so that the coaxiality of the power takeoff and the gear pump and the automatic working adjustment of radial force when gears works at high pressure are improved, the service life of the gear pump is improved, the problem in position and space for assembling the hydraulic system is solved, energy consumption is saved, and consumption of fuel is reduced.

The invention discloses a built-in guiding oil cylinder which comprises a lower end cap, a cylinder barrel, an upper end cap, a piston, a piston rod, upper screws, a lower screw, a guiding rod, a guiding block and a key. According to the invention, the guiding device is mounted in the oil cylinder, which enhances the radial guiding function of the oil cylinder on one hand, and limits the rotation of the oil cylinder and reliably realizes the circumferential guiding of the oil cylinder on the other hand during the operating process of the oil cylinder. The built-in guiding oil cylinder is simple in structure, works reliably, solves the problem that the mounting space and condition of an external accessory guiding device of an oil cylinder are limited, can be applied to the occasion of limiting circumferential rotation during an oil cylinder operating process, and has a wide application prospect.

The invention provides an air spring. The air spring comprises an upper cover and a base which are alternately arranged, a supporting seat which is positioned between the upper cover and the base and is alternately arranged between the upper cover and the base, and an elastic capsule body which is arranged between the upper cover and the supporting seat. The air spring is characterized in that along the radial direction of the upper cover and the base, the elastic capsule body comprises an elastic outer capsule and an elastic inner capsule which are alternately arranged; openings are formed in peripheral sides of the elastic inner and outer capsules and are respectively connected with the upper cover and the supporting seat to form a closed space in an enclosing way; through mounting holes are formed in the upper cover and the base and are arranged in a straight line for mounting the air spring. A traditional air spring is only provided with a capsule body similar to the elastic outer capsule of the air spring, and the structure of the elastic inner capsule is additionally arranged based on the elastic outer capsule, so that both requirement of a vehicle with limited space for mounting space and vibration damping performance can be solved.

The invention discloses a combined intelligent capacitor and relates to the technical field of capacitors. The combined intelligent capacitor comprises a shell, a wiring terminal, a separating compensation capacitor zero-phase output end and a three-phase capacitor output end, wherein the three-phase capacitor output end is arranged at one side of the top end of the shell and the wiring terminal and the separating compensation capacitor zero-phase output end is arranged at the other side of the top end of the shell; a compound switch is arranged in the shell; three-phase input ends L1, L2 and L3 of the compound switch are connected to a power grid and three-phase output ends C1, C2 and C3 are connected to a capacitor or an electric reactor; a co-compensation switch is only connected to a separating compensation switch K1 to control three-phase output; the separating compensation switch K1 controls output of the C1, K2 controls the output of the C2 and K3 controls the output of the C3; V is connected to an anode at the public end of a control signal; and N is a power grid null line input end. The combined intelligent capacitor has simple overall structure and simple wiring, a problem of hybrid compensation installation space is solved, and meanwhile, the problems of narrow distance between parallel electric appliance groups and easiness in heating and damage are solved, the speed of discharge can be accelerated, and the conditions are created for quick switching of the capacitor.

The invention discloses a railway vehicle and a cowcatcher structure thereof. The cowcatcher structure comprises a cowcatcher main structure with a concave area design, and the concave area of the cowcatcher main structure is used for installing a signal system; the cowcatcher main structure comprises an upper cover plate, a lower cover plate and a middle support. The concave area is of a trapezoidal structure which is formed by splicing a plurality of middle U-shaped beams and is large in outside and small in inside; a plough-shaped cowcatcher plate is arranged at the front end of the cowcatcher main structure; and a longitudinal strength reinforcing structure is arranged in the cowcatcher main structure, and a box-shaped body is formed between the longitudinal strength reinforcing structure and the lower cover plate. The cowcatcher structure has the characteristics of being light in weight and high in strength, and can meet the requirement for an ultra-large installation space needed by a vehicle signal system.

The invention discloses a method for transforming a medium pipeline blocking mounting of a steel column of an extended factory. Based on the longitudinal axis of the medium pipeline and the transversesize of the blocking portion of the longitudinal shape contour line of the steel column of the extended factory, a pipeline support at the blocking position of the medium pipeline is structurally transformed, the portion, at the blocking position, of the medium pipeline is horizontally moved to the right side of the longitudinal position of the steel column of the extended factory, a 200 mm transverse distance is formed between the outer surface of the left side of the transformed medium pipeline and the longitudinal outer contour line on the right side of the steel column of the extended factory, and space needed by mounting of the steel column of the extended factory is vacated. The method includes the sequential construction steps that blocking points of mounting of the steel column ofthe extended factory are searched for, a medium pipeline support at the blocking position of factory extension is transformed, and the portion, at the blocking position, of the medium pipeline is transformed. The problem about mounting of the steel column of the extended factory at the blocking position of the medium pipeline is solved, the risk of supply interruption of an energy medium caused by blocking of the medium pipeline on mounting of the steel column of factory extension is reduced, and it is guaranteed that engineering construction and workshop production are effectively carried out.

The invention discloses a built-in guide oil cylinder which comprises a lower end cover, a cylinder barrel, a right guide rod, a left guide rod, an upper end cover, a plunger piston and the like. A guide device is mounted inside an oil cylinder, so that in a movement process of the oil cylinder, on one hand, radial guide effect of the oil cylinder is reinforced, on the other hand, rotation of the oil cylinder is restricted, and therefore, circumferential-direction guide of the oil cylinder is reliably realized. The built-in guide oil cylinder is simple in structure, reliable in work, solves the problem that a guide device for external accessories of the oil cylinder is limited by a mounting space and conditions, can be applied to limiting a circumferential-direction rotation occasion in a movement process of the oil cylinder, and has a wide application prospect.

The invention discloses a zigzag tooth labyrinth sealing structure and a mounting method thereof and belongs to the technical field of sealing devices. The labyrinth sealing structure comprises a seal mounting hole and a shaft, wherein the seal mounting hole is internally provided with a sealing body; the sealing body and the shaft form a labyrinth seal; the seal mounting hole is provided with a horizontal guide slot and an annular limiting slot; the horizontal guide slot and the annular limiting slot are communicated; the sealing body comprises an upper sealing body and a lower sealing body; the outer side of the sealing body is provided with a guide key; the upper sealing body and the lower sealing body respectively slide into the annular limiting slot along the horizontal guide slot by virtue of the guide keys so as to form cylindrical seal teeth in a matching manner; and the cylindrical sealing teeth and the sealing teeth on the shaft form a zigzag tooth labyrinth seal. The sealing body and the shaft form the zigzag tooth labyrinth seal, so that the problem that the mounting space is limited can be solved; the zigzag tooth labyrinth seal also has a better sealing effect; and furthermore, the zigzag tooth labyrinth seal is simple in structure and convenient and easy to maintain.

The invention relates to a main cooler assembly. The main cooler assembly is small in size and superior in performance so as to meet the requirement for the maximum temperature group T4 (< 135 DEG C) of an explosion-proof diesel forklift, under the designed use environmental temperature, the explosion-proof forklift and a common forklift can also continuously work, with a reasonably-designed air inlet channel and an air exhaust channel, power performance of an engine is not decreased, and the whole vehicle performance of the explosion-proof forklift is the same as that of the same type common forklift. According to the technical scheme, the main cooler assembly comprises a sealed shell body and an air exhaust heat exchange chamber arranged in the shell body, a gas is reserved between the shell body and the air exhaust heat exchange chamber, and cooling water is filled in the gap to form a water interlayer. The main cooler assembly is suitable for the explosion-proof diesel forklift with the high explosion-proof grade and other explosion-proof internal combustion engineering mechanical vehicles.

The invention discloses a wide-frequency large-displacement vibration simulation exciter suitable for road simulation of high-speed crawler vehicles, which includes a tailstock, an oil accumulator, a cylinder body, an end cover, a gland, and a cap; It is used to provide the base and support; the cylinder is located above the tailstock, the two ends of the cylinder are connected with end covers, the front of the cylinder is equipped with a valve block and a cartridge type back pressure valve, and the inside of the cylinder is installed with An integrated piston rod; an electro-hydraulic servo valve and a plug-in pressure reducing valve are installed on the upper part of the valve block, and an oil accumulator is installed under the valve block; a gland is connected to the upper part of the integrated piston rod. The upper part of the cover is connected with the platform. The invention realizes the low-friction wide-frequency large-displacement vibration simulation of the exciter, has strong adaptability, quick response, convenient adjustment and meets the requirements of laboratory testing.

The invention discloses a single-axle rubber-tyred light rail vehicle bogie, which comprises: a frame, an axle-bridge device and an axle-bridge fixing device, the frame includes a guide frame and a suspension, and the suspension is set by at least four elastic elements Above the guide frame, guide wheels are fixedly arranged on the guide frame; rubber wheels are provided at both ends of the axle bridge device, and the axle bridge device is located between the suspension and the guide frame The axle-bridge fixing device is used to fix the axle-bridge device on the guide frame; wherein, a drawbar is connected between the axle-bridge fixing device and the suspension, and the suspension is also provided with A driving device, the driving device is used to provide power for the axle bridge device. The invention is beneficial to realize the lightweight design, improve the comfort of the vehicle, simplify the bogie structure and enhance the maintainability.

The invention discloses a non-horizontal-direction insert device and a working method thereof. The non-horizontal-direction insert device comprises a machine tool, a workpiece grab and an insert grab; a workpiece is assembled on the workpiece grab; a non-horizontal insert is assembled on the insert grab; the workpiece grab and the insert grab are movably installed on the machine tool; the insert grab is arranged in a mode of moving back and forth relative to the workpiece grab; and the non-horizontal insert comprises an inclined part and a vertical part from top to bottom. The non-horizontal insert is arranged to be of a structure with the upper part and the lower part, and the insert grab in the horizontal direction grabs the vertical part of the insert and moves horizontally to combine the insert with the workpiece. The problem that a grab of common equipment needs to be arranged obliquely and has a higher requirement for the installation space and assembly is solved, and the working efficiency of whole equipment is improved.

The present invention relates to a transmission input shaft damper (ISD), which may include an inertial body assembly relatively rotatably mounted on the input shaft of the transmission; and a planetary gear set, the planetary gear set mounted on the input shaft to receive and increase the rotational force of the input shaft and output the increased rotational force to the inertial body assembly.

The invention discloses a limitable rotation device for a boom of a bridge crane, which comprises a main motor and a motor rotation adjustment mechanism. The main motor is fixedly installed on the left side of the operation platform, and the There is a support frame, the left and right ends of the support frame are equipped with electromagnetic clutches, the inner wall of the support frame is connected to the motor rotation adjustment mechanism, and the right end of the motor rotation adjustment mechanism passes through the inner wall of the support frame and is arranged on the The reducer on the right side of the motor rotation adjustment mechanism is connected, and the driving end of the reducer is connected with the auxiliary motor. Dual motors with different speeds are used to drive the rotation adjustment, which greatly improves the rotation adjustment accuracy, and the worm gear rotation support has Self-locking function, the device can be self-locked at any position during the overall rotation process, without adding other auxiliary devices, which reduces the probability of device failure, is safe and reliable, and effectively improves work efficiency.

The invention provides a massager, when a seat part of the massager is inclined due to the expansion of an air bag, the load is reduced relative to the air bag, and the expandable stroke of the air bag is shortened. In the massager provided with the seat part (2) holding the buttock of a patient, which is inclined by using an oblique fulcrum (21) at the rear side of the seat part to change the angle of the seat part (2), a pivot of an auxiliary leg (3) for inclining the seat part before the oblique fulcrum (21) is supported to be lifted on the seat part (2), and the auxiliary leg is connectedwith the air bag (41).

The invention relates to the field of water taking facilities in a construction period of a tap water plant or a water pumping room, and in particular to a method for constructing a water pumping roomwalling crib concrete drawing die. The method adopts a non-bracket die-drawing die-turning construction method matched with a tower crane, the rapid construction of a ultra-deep large-span circular water pump well crib is realized, the construction quality and the construction period of the water pumping room walling crib are guaranteed, the construction difficulty of uninterrupted construction for installation of the pumping room equipment room is successfully solved, the parallel operation and the construction period optimization are achieved to the greatest extent, significant effects areachieved in aspects of process optimization, cost saving and progress control, the synchronous construction of installation of the pumping room equipment facilities and the well crib is realized, andmeanwhile, effective measures are adopted to reduce the safety risk.

A compressor for a turbocharger is described having: a compressor housing; a compressor wheel having compressor blades mounted therein; and a compressor inlet. The compressor inlet includes, at least in a section adjacent to the compressor housing, an inner tube and an outer tube surrounding the inner tube. The inner tube is directed towards a radially inner region of the compressor blade, and the outer tube is directed towards a radially outer region of the compressor blade. The passage section of the outer tube and / or the inner tube can be at least partially closed such that the compressor blades can be exposed to the variable flow. Therefore, the approach flow to the compressor is optimized according to the engine load.

The invention discloses a built-in guiding oil cylinder which comprises a lower end cap, a cylinder barrel, an upper end cap, a piston, a piston rod, upper screws, a lower screw, a guiding rod, a guiding block and a key. According to the invention, the guiding device is mounted in the oil cylinder, which enhances the radial guiding function of the oil cylinder on one hand, and limits the rotation of the oil cylinder and reliably realizes the circumferential guiding of the oil cylinder on the other hand during the operating process of the oil cylinder. The built-in guiding oil cylinder is simple in structure, works reliably, solves the problem that the mounting space and condition of an external accessory guiding device of an oil cylinder are limited, can be applied to the occasion of limiting circumferential rotation during an oil cylinder operating process, and has a wide application prospect.