41results 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.

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 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.

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 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 discloses a cash register with a printer capable of being rapidly disassembled and assembled. The cash register with the printer capable of being assembled and disassembled quickly comprises a printer shell, a cash register shell and a shell connecting mechanism. The printer shell can slide to abut against the inner portion of the cash register shell. The shell connecting mechanism is arranged between the printer shell and the cash register shell. The shell connecting mechanism comprises a connecting piece and an elastic body. The connecting piece is rotatably connected with theprinter shell, an end of one side, close to a printer module, of the connecting piece abuts against the printer shell, the side, close to the printer shell, of the connecting piece is elastically connected with the printer shell through the elastic body, and the connecting piece is parallel to a movement direction of the printer module in an initial state. Problems that the printer is inconvenientto install and maintain and difficult to disassemble are solved.

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.