42results about How to "Limited rotational freedom" patented technology

The invention discloses a high-speed large-torque full-hydraulic top drive well-drilling device which is driven by a group of high-speed small-torque hydraulic motors. Each hydraulic motor is equipped with an independent multi-piece disk brake and a planetary speed reducer; a main shaft can rotate at high speed and large torque; a disk brake is not required to be arranged. The structure of the high-speed large-torque full-hydraulic top drive well-drilling device comprises a lifting device, a main transmission box, a rotation head assembly, a hydraulic chuck and an opening-closing sliding trolley which are arranged from top to bottom, wherein the upper part of the lifting device is directly connected with a traveling trolley by virtue of a lifting cross beam; the lower part of the lifting device is connected with a lifting seat of the main transmission box; the rotation head takes a rotation driver driven by a worm as a main working part; the accurate angle location is implemented by electric-hydraulic proportional closed-loop control; the rotation head has self-locking property and can be used for simultaneously driving a drilling column to rotate with the main shaft; the low-speed torque increasing operation can be implemented. The hydraulic top driver is small in size and light in weight; electric-hydraulic proportional volumetric speed control in a high rotation speed range is implemented by a hydraulic system through a mechanical and electrical integration technology, thereby meeting the requirements of a plurality of deep well drilling processes and drilling disciplines, especially core drilling during continental scientific drilling of deep wells.

It is ultra-fine silicon pad position system with balance damping apparatus, which uses conservation of momentum principle and put the silicon pad supporting apparatus and its guide apparatus on a balance block with X, Y freedom degree supported by a float axis. When the silicon supporting apparatus moves along one direction, the balance block moves oppositely and eliminates the vibration caused by move reaction. The system also has a momentum wheel system used to eliminate the vibration caused by the momentum distance non-conservation in the moving surface of the silicon pad supporting apparatus. The whole system is supported by three air elastic spring and absorbs the remaining vibration of rest three freedom degrees and further improves the moving accuracy of the silicon pad position system.

The invention discloses a three-translational-degree-of-freedom robot mechanism. The robot mechanism comprises a stand, a movable platform and three branching chains with the same structure, wherein each branching chain is provided with a driving device and comprises a secondary driving arm, a supporting frame, a driving arm, a driven arm and a crank shaft hinge; the upper end, the lower end and the middle part of the supporting frame are provided with hinge parts respectively; one end of the driving arm is connected with an output shaft of the driving device, and the other end of the driving arm is connected with the middle hinge part of the supporting frame through a third hinge shaft; the hinge part of the upper end of the supporting frame is connected with one end of the secondary driving arm through a second hinge shaft, and the other end of the secondary driving arm is connected with the stand through a first hinge shaft; the hinge part of the lower end of the supporting frame is connected with one end of the driven arm through the crank shaft hinge, and the other end of the driven arm is hinged with the movable platform through the crank shaft hinge; and a parallelogram is formed among the secondary driving arm, the supporting frame, the driving arm and the stand. The robot mechanism effectively guarantees the posture accuracy of the movable platform, has a simple structure and is convenient to mount.

The invention discloses a transfer robot with symmetrically arranged driven arms and reconstructible degree of freedom and belongs to the technical field of robots. This robot comprises a frame, moving platform three branches and a driving device; each branch includes a large driving arm, a small driving arm, a driving arm link, a support and driven arms; one end of the large driving arm is connected with an output shaft of the driving device, the other being connected with a middle hinging position of the support; one end of the small driving arm is connected with the output shaft of the driving device, the other end being connected with the upper end of the support through the driving arm link in a hinged manner; the upper ends of the driven arms are connected respectively with the lower end of the support and the tail symmetric hinged position of the large driving arm, and the lower ends of the driven arms are connected with a moving platform. The lower end hinged axis of the support and the tail end hinged axis of the large driving arm can be controlled to be coaxial or not so that the robot is switched between three degrees of freedom and six degrees of freedom, mechanism flexibility is effectively improved, and carrying needs can be better met.

The invention relates to the field of automotive lamps, particularly to an automotive headlight fixing structure and a headlight assembling method based on the same. The automotive headlight fixing structure comprises a headlight body, which is provided with a fixing unit for fixing a headlight onto a vehicle body; the fixing unit is composed of a main positioning unit, an auxiliary positioning unit and an auxiliary fixing unit, wherein the main positioning unit is composed of a first positioning unit for connecting a wheel fender and a second positioning unit for connecting a headlight lowersupport, and the auxiliary positioning unit comprises a third positioning unit for connecting the headlight body and a headlight beam. The automotive headlight fixing structure and the headlight assembling method based on the same can well meet visual requirements on the headlight as well as the sensory quality demands of customers, optimize assembling methods, and on the basis of thoroughly ensuring the matched state of the headlight and surrounding parts, improve the assembling efficiency of an assembly line and greatly save the assembling time.

The invention provides an automobile steering knuckle as well as a steering knuckle positioning and fastening device. The automobile steering knuckle comprises a steering knuckle body in which a steering shaft hole is formed, wherein a first positioning part, a second positioning part and a third positioning part which are arranged in a triangular shape are formed on the steering knuckle body; the first positioning part and the second positioning part are clamping and fixing parts which are formed on the steering knuckle body and can be connected with an external mechanism in a clamping manner; one of the clamping and fixing parts is in a strip shape; and the third positioning part can be abutted and connected with the external mechanism. The invention also provides a steering knuckle positioning and fastening device for positioning and fastening the automobile steering knuckle. According to the automobile steering knuckle disclosed by the invention, complete positioning of the steering knuckle can be achieved by the arrangement of the first positioning part, the second positioning part and the third positioning part to guarantee stable positioning and fastening of the steering knuckle; and besides, the structure of a steering knuckle positioning and fastening fixture can be simplified, so that the problems that the design is difficult and collision accidents are easy to occur caused by complicated structure of the fixture can be solved, and the automobile steering knuckle is good in practicability.

The invention discloses a non-linear elastic auxiliary vibrating device and a vibration swinging bench and aims to solves the problems that the design, manufacturing and usage cost of the vibration swinging bench caused by large power consumption is greatly increased in the research of the vibration swinging bench, and the vibration swinging bench meeting the usage requirements is not available. The vibration swinging bench comprises a support platform (1), four non-linear elastic auxiliary vibrating devices (2), four support seats (3) and three vibration exciters (4). The three vibration exciters (4) are installed between the support platform (1) and a base (5) through spherical hinges. The four non-linear elastic auxiliary vibrating devices (2) are symmetrically arranged on the periphery of the support platform (1). The four non-linear elastic auxiliary vibrating devices (2) are respectively and fixedly connected with one side of the support platform (1) through one tongue-shaped plate. The four non-linear elastic auxiliary vibrating devices (2) are installed on the four support seats (3). The bottom end of the support seats (3) are fixedly connected with the base (5).

The invention discloses a traffic signal lamp, and belongs to the traffic field. The lamp comprises a stand column and transverse columns, wherein the number of the transverse columns is two. The twotransverse columns are fixedly connected to the side wall of the stand column and are perpendicular to each other. A sliding chamber is arranged on the inner wall of the bottom of the stand column. Afirst motor is arranged on the inner wall of the sliding chamber; the output end of the first motor is connected with a lifting mechanism; a first sliding plate is fixedly connected to the upper portion of the lifting mechanism, a supporting rod is fixedly connected to the upper portion of the first sliding plate, a second sliding plate is fixedly connected to the end, away from the first slidingplate, of the supporting rod, a cylinder bottom plate is further connected to the inner wall of the stand column, and an outer cylinder is fixedly connected to the bottom of the cylinder bottom plate.According to the invention, pedestrians are reminded of running the red light through mutual cooperation of the air jet holes and the spotlights, the safety of the pedestrians is protected, and the function of cleaning the indicator lights is added; a power generation device is arranged at the top to supply power to the lamp, and the lamp has the advantages of being environmentally friendly and free of pollution.

The invention provides a simple straddle-type monorail train bogie, which relates to the technical field of straddle-type monorail train systems, comprising a frame and a traveling wheel rotatably connected to the middle part of the frame through a rotating shaft, wherein a driving brake integrated device is installed on the rotating shaft, and two sides of the traveling wheel are provided with aguide wheel and a stabilizing wheel; A support plate is fixedly connected with that upper end of the frame, a traction column for connecting with the vehicle body is fixedly connected with the supportplate, and a shock absorbing device is also arranged on the support plate. The invention solves the problem that the volume of the monorail train bogie in the prior art is too large and the cost is high, which is not suitable for the small monorail train.

A vehicle steering transmission is disclosed, and comprises a steering wheel, a steering wheel connector, a universal lever, a rotary control device, a position sensor, right wheels, right tie rods, toothed columns, long fixing cylinders, left tie rods, left wheels, a control panel; the steering wheel connector is welded to the front end of the steering wheel. the gimbal is fitted at the front ofthe steering wheel mount, as that rotation control device is provided, as that vehicle body is subject to a large shake, the device can automatically apply a certain amount of friction force to the guide rod, depending on the size of the body shake, compared with the flat section, the potholed section needs more deflection force to rotate the steering wheel. because the speed of the potholed section is lower, the operator has enough reaction time to control the rotation of the steering wheel. In the flat section, the device automatically eliminates the frictional force to the guide rod, whichrestores the original steering freedom of the guide rod and ensures the driving safety of the vehicle.

The invention relates to a large traction screw propulsion micro-pipeline robot which comprises a guide mechanism, a screw propulsion mechanism and a rotary driving device arranged between the guide mechanism and the screw propulsion mechanism; wherein, the screw propulsion mechanism comprises a first tension rod, a spiral supporting seat and a spiral wheel set; a sliding groove is arranged at theupper edge of the spiral supporting seat along the axial direction, and a first guide hole is arranged along the radial direction of the spiral supporting seat; the spiral supporting seat is sheathedoutside the first tension rod which is formed by a first taper section, a first thread section and a first sliding bar section; the smaller diameter end of the first taper section is connected with the first thread section, and the bigger diameter end thereof is connected with the first sliding bar section; the first thread section is connected with the rotary driving device and provided with a first tension nut, a first compression spring is arranged between the first tension nut and the spiral supporting seat, the first sliding bar section is provided with a guide pin arranged inside the sliding groove, the spiral wheel set is connected with a spiral wheel set support pole, and the spiral wheel set support pole passes through the first guide hole and is contacted with the first taper section. The robot has the advantages of high load capacity, strong adaptive capacity for the pipe diameter change and better passing through capacity of a bent pipe.

The invention discloses a multi-actuating travel and return travel irregularly-shaped wheel lubricating grease delivery device, which comprises piston cylinders, pistons and piston rods. Resetting springs sleeved on the piston rods are arranged in the piston cylinders. The device also comprises a square rack. An input shaft is fixedly arranged on the middle part of the rack. A plurality of irregularly-shaped wheels are arranged at an equal interval on the input shaft. A frame fixedly arranged on the rack is arranged outside each irregularly-shaped wheel. The piston cylinders are symmetrically arranged on the rack on the left and right sides of each frame. The end parts of the piston rods matched with the piston cylinders are fixedly arranged on the lateral surfaces of the frames through capped round pins. A fixed shaft is arranged on the lower part of each frame, and penetrates through a guide hole in the bottom of the frame. Each irregularly-shaped wheel consists of three small wheels which are arranged at an equal interval of 120 degrees. Mounting angles of adjacent irregularly-shaped wheels which are arranged at the equal interval on the input shaft are differentiated by 40 degrees. When the irregularly-shaped wheels rotate a circle, the pistons reciprocally move for three times, so that a high-flow stacking fold can be increased, and the non-uniformity of flow of the delivery device can be reduced. The device is simple in structure, uniform in flow and high in stability, and the fluctuation of the flow can be effectively reduced.

The invention discloses a gordon euryale seed husking machine. The gordon euryale seed husking machine comprises a feeding mechanism, a pre-cutting mechanism and a husking mechanism, wherein the feeding mechanism is provided with a feeding tray; the feeding tray is used for rotating feeding on gordon euryale seeds; the pre-cutting mechanism is provided with blades; the blades are used for cuttingto form a linear notch in the shell of each gordon euryale seed; the main plane of each blade is parallel to the rotating plane of the feeding tray; the husking mechanism is provided with rubbing rollers; each rubbing roller is in contact with the corresponding linear notch and is used for rubbing the shell of the corresponding gordon euryale seed to enable the shell is cracked; an inclined angleis formed between the rotate plane of each rubbing roller and the main plane of the corresponding blade; the own axis of the feeding tray is parallel to a horizontal surface; a plurality of annular V-shaped grooves are formed in the circumferential surface of the feeding tray; groove openings of every two adjacent annular V-shaped grooves are connected by a plurality of connecting pins; and a gaprotating mechanism is coaxially connected to the feeding tray. Through the adoption of the gordon euryale seed husking machine disclosed by the invention, firstly, cutting is performed on each gordoneuryale seed by the corresponding blade, and then the gordon euryale seeds are rubbed to be cracked by the rubbing rollers, so that the automation degree and the efficiency are high; and the breakingrate of shells is increased by distributing angle of the blades and the rubbing rollers.

A vibration table simulating earthquake consists of support frame, test table and exciting system to make test table simulate earthquake. It is featured as setting contact roll of bottom translation table (BTT) on outer support bottom rail and contact roll of top translation table (TTT) on BTT rail in exciting system, connecting level Y direction spring set to BTT and inside face of outer support frame, level X direction one to TTT and inside face of inner support frame and vertical spring set to TTT and test table bottom.

The invention discloses an anti-carsickness wrister, and relates to a wrister with a function of preventing carsickness. The anti-carsickness wrister comprises a wrister, a protruding buckle arranged on the inner surface of the wrister, and a pressing buckle which is used for fixing the protruding buckle and is arranged on the outer surface of the wrister. The protruding buckle is in a hemisphere shape or a cone shape, a connection hole is formed in the bottom face of the protruding buckle, and the connection hole is a two-stage stepped hole. A connection shaft is arranged on the bottom face of the pressing buckle, and a circle of protruding hoop is arranged close to the end portion of the shaft. The inner diameter of the small stepped hole of the connection hole is slightly smaller than the biggest diameter of the protruding hoop. The anti-carsickness wrister changes the previous technical scheme of connecting the pressing buckle and the protruding buckle through adhesive. The circle of protruding hoop is arranged on the end portion of the pressing buckle shaft, meanwhile the protruding buckle hole is changed into the stepped hole, and when the wrister is assembled, the protruding hoop is pressed into the stepped hole to form an interference fit state, and therefore the connection of the protruding hoop and the steeped hole is firm and is hard to separate. In order to solve the problem that relative rotation exists between the wrister after connection, a protruding tip is arranged on the bottom face of the pressing buckle of the anti-carsickness wrister, and the protruding tip can stab in the wrister body to limit the rotational freedom between the buckle piece and the wrister body.

The invention relates to the technical field of oxygen storage, and discloses an oxygen storage device with a detection function. The oxygen storage device comprises an oxygen storage tank, the top end of the oxygen storage tank is fixedly in communication with an L-shaped pipe, the vertical part of the L-shaped pipe is fixedly provided with a matched valve, the valve is provided with a valve rod,a matched detection cylinder is inserted into the end, away from the oxygen storage tank, of the L-shaped pipe, a detection mechanism is installed in the detection cylinder, the outer cylinder wall of the detection cylinder is fixedly sleeved with an O-shaped sealing ring matched with the inner wall of the L-shaped pipe, the outer pipe wall of the end of the L-shaped pipe is provided with external threads, the end of the L-shaped pipe is sleeved with a matched rotary cylinder, internal threads matched with the external threads are arranged on the inner cylinder wall of the rotary cylinder, and the rotary cylinder is in threaded connection with the L-shaped pipe. According to the oxygen storage device, the oxygen storage tank has the oxygen leakage detection alarm function, the valve rod of the valve on the oxygen storage tank is not prone to loosening, and therefore oxygen leakage is effectively avoided.

The invention discloses a load-detachable test system for testing the torsional property of a bolt, which comprises the steps of establishing a test platform and testing the torsional property of thebolt, and is used for conveniently realizing the loosening of a nut by unloading a pre-tightening force.

The invention relates to a pot body support device used for an automatic dish-frying machine, and relates to the field of cooking utensils. The pot body support device is designed for facilitating thereplacement of a pot body of the automatic dish-frying machine. The pot body support device comprises the pot body, a bracket and a pot body shell, wherein the bracket is arranged in the pot body shell, and the pot body shell realizes support and rotation driving for the bracket, and the pot body is arranged in the bracket and is limited by pins and limiting shafts. During replacement of the potbody, the replacement can be realized only by contracting the limiting shafts. The convenient and rapid replacement of the pot body is realized.

The invention discloses a drum-shaped side inlet folding door inspection tool. The drum-shaped side inlet folding door inspection tool comprises an inspection frame and an inspection seat, wherein theinspection frame is of a rectangular frame structure as a whole, and the inspection seat is used for supporting the inspection frame; the inspection frame comprises two stand columns and two cross beams, folding mounting seats are arranged on the stand columns corresponding to a folding of a drum-shaped side inlet folding door, locking plate mounting seats are arranged on the stand columns corresponding to a locking plate of the drum-shaped side inlet folding door, rotary supporting seats are arranged on the outer side surfaces of the stand columns, and the bottoms of the stand columns are bent. According to the inspection tool, the folding door can be placed on the inspection frame during inspection, the outline size, the flatness, the curved surface outline size, the mounting size, thesealing performance, the action performance, the opening angle, the door lock function, the door lock mounting position and the like of the folding door are inspected on the inspection frame, and theinspection is more convenient and efficient.

The invention relates to an integrated electric cylinder based on a reverse type planetary roller screw, belongs to the technical field of electric cylinders for aerospace, and solves the problem that the existing electric cylinder cannot realize high-precision position closed-loop control and has no fault tolerance function of a servo motor. And it is necessary to limit the rotation of the push rod by the load. The integrated electric cylinder of the present invention is composed of a cylinder block, a bearing, a stator winding, a rotor permanent magnet, a nut sleeve, a roller screw, an encoder, an encoder mounting frame, an encoder mounting shaft and a magnetostrictive displacement sensor; the cylinder The body includes a casing, an end cover and a guide sleeve, and the end cover and the guide sleeve are respectively arranged at both ends of the casing; the bearing is sleeved in the casing, and the nut sleeve is sleeved in the bearing; the nut sleeve is connected with the roller screw ; The casing is connected with the stator winding, and the rotor permanent magnet is arranged on the outer surface of the nut sleeve. The present invention can realize high-precision position closed-loop control, the stator windings are mutually redundant, and there is no need to increase the push rod to limit the rotation of the lead screw.

The invention relates to a connecting structure of an inner shaft oil pump motor. The connecting structure comprises a first shaft sleeve connected with a motor shaft, a second shaft sleeve connectedwith an oil pump shaft, and a connecting assembly connected with the first shaft sleeve and the second shaft sleeve; and key grooves are formed in the first shaft sleeve and the second shaft sleeve. The connecting assembly is used for limiting the rotation freedom degree around the central axis of the first shaft sleeve and / or the second shaft sleeve. According to the connecting structure of the inner shaft oil pump motor, when the motor operates, vibration caused by assembly errors between shafts can be relieved, and the service life of the motor oil pump cannot be affected.

The invention relates to a two-degree-of-freedom flexible joint in the whiffletree support structure of a large-diameter reflector, including: a flexible joint body and a lower end flange; the flexible joint body includes: an upper end flange, an upper sheet, and an orthogonal sheet transition method Lan, lower sheet; upper sheet and lower sheet are arranged orthogonally. The two-degree-of-freedom flexible joint in the whiffletree support structure of the large-diameter reflector of the present invention is based on the original structure of the two-degree-of-freedom flexible joint, and four sets of stoppers and eight sets of needle roller bearing positioning block assemblies are added to effectively limit the The rotational freedom Rz of the two-degree-of-freedom flexible joint around the axial direction of the flexible joint obtains a true two-degree-of-freedom flexible joint, which makes the engineering design structure completely consistent with its structural principle, and at the same time effectively improves the fundamental frequency of the whiffletree structure.

The invention discloses an inner supporting device capable of rolling and rotating for an automobile safety tire. The inner supporting device comprises a supporting base, rolling bodies, a retaining frame, an outer rolling ring and a self-locking device. The rolling bodies evenly distributed along the circumferences are arranged between the outer rolling ring and the supporting base. The rolling bodies are restrained through the retaining frame to form a whole structure capable of rolling around the supporting base. The rotational freedom degree of the outer rolling ring around the axis of the tire and the rotational freedom degree of the retaining frame around the axis of the tire can be limited through the self-locking device. The problems of friction heat production, rubber abrasion and the like between the rubber tire face and an inner supporting body of the inner supporting type safety tire under the low-pressure or zero-pressure traveling working condition can be effectively solved, and the inner supporting device is good in heat dissipation performance, simple in structure, capable of prolonging the running mileage of the safety tire and good in traveling safety.

The invention discloses an acupoint pressing device of a carsickness prevention cuff, and relates to cuffs. Connection can be performed conveniently in production, and separation in use is avoided. The acupoint pressing device comprises a pressing buckle and a protruding buckle. The protruding buckle is arranged on the inner side of the cuff, and the pressing buckle is arranged on the outer side of the cuff. The pressing buckle comprises a pressing plate and a connecting needle. A ring of neck is arranged on the outer surface of the connecting needle. The protruding buckle comprises a body and an insertion hole formed in the center of the bottom face of the body. The inner diameter of the insertion hole is matched with the outer diameter of the connecting needle. A protrusion matched with the neck is arranged on the inner wall of the insertion hole. In the production and assembling process, the connecting needle in the pressing buckle is extruded into the insertion hole of the protruding buckle, the interference fit state is formed through extrusion of the protrusion to the groove, so that the protrusion and the groove are connected firmly and not likely to be separated. In addition, in order to solve the problem that the device and the cuff are rotated relatively after connection, protruding teeth are arranged, the device can be inserted into the cuff body, and the rotation degrees of freedom between the buckle and the body are limited.

The invention discloses a tunnel arch frame mounting and supporting device and a using method thereof. The tunnel arch frame mounting and supporting device comprises a supporting pipe, an adjusting nut rotatably arranged at one end of the supporting pipe, an adjusting screw connected with the adjusting nut and slidably arranged in the supporting pipe, and a clamping groove formed in the free end of the adjusting screw and perpendicular to the adjusting screw. The tunnel arch frame mounting and supporting device has the beneficial effects that a steel arch frame is supported by adopting the clamping groove, the steel arch frame can be limited by utilizing a groove-shaped structure, the rotating freedom degree of the steel arch frame is limited, and the positioning precision of a steel component is improved advantageously; and the clamping groove has a certain length, the contact area of the clamping groove and the steel component can be increased, thus the stability of the steel component is improved, and the height of the steel component can be adjusted conveniently through the adjusting screw.

The invention relates to an automatically-positioned power unit test bench, which comprises a test bench support, an assembly tool and a bearing device, wherein the test bench support is composed of a flat plate-shaped base and a door frame-type frame; the frame is uprightly arranged on the top surface of the base; two oil cylinders are parallelly suspended in a channel steel frame; the tail part of each oil cylinder is connected onto the upper crossbeam of the channel steel frame; the piston rod end of the oil cylinder is hinged onto an upper plane of an upper crossbeam of a mounting pulley of the assembly tool; twalking rollers and adjusting rollers of the mounting pulley are respectively arranged in channel steel frame notches; the front part of the mounting frame is provided with a semi-arc notch connected onto the front side of the upper crossbeam of the mounting pulley; four quick clamping devices are arranged around the semi-arc notch on a rib plate upper plane of the mounting fame; and the central position of the arc is corresponding to that between a front bearing roller and a rear bearing roller of a roller supporting frame. The automatically-positioned power unit test bench has the beneficial effects that relative positions between a bearing device and a tested piece are kept consistent, and rolling friction is realized between wheels of the tested piece and the bearing mechanism.