A vertical closed single-joint universal coupling efficiency test device

Abstract

The invention relates to a vertical closed single-joint universal coupling efficiency testing device, comprising: a power device, a testing device, a torque loading device, a vertical angle adjustment device and a box body; the power device comprises: a motor I, a step shaft I, a sliding gear, a shift fork, a connecting rod I, a crank, a step shaft II and a motor II; the testing device comprises: a step shaft III, a cylindrical gear I, a cylindrical gear II, a torque sensor I, a universal coupling I and a torque sensor II; the torque loading device comprises: a step shaft IV, a cylindrical gear III, a cylindrical gear IV and a forward and reverse speed clutch I; the vertical angle adjustment device comprises: a rocking plate, a step shaft V, a cylindrical gear V, a universal coupling II, a step shaft VI, a cylindrical gear VI, a forward and reverse speed clutch II, a connecting rod II, a crankshaft, a bevel gear, a bevel gear shaft and a motor III; the box body comprises: an upper box body and a lower box body; the device has the remarkable advantages of low power consumption, simple operation, high automation and stepless angle adjustment of the universal coupling.

Description

Technical Field

[0001] The invention relates to the field of universal coupling efficiency testing, in particular to a vertical closed single-joint universal coupling efficiency testing device. Background Art

[0002] At present, in the field of universal coupling efficiency testing, manual and load-increasing methods are often used. Manual universal coupling efficiency testing has large errors and is time-consuming. Testing by increasing load has the disadvantages of high energy consumption, inconvenient operation, and few angle adjustment levels. In addition, the angle adjustment device adopts plane swing, such as Fig.12 Structural diagram, when angle deflection occurs, the distances between a and b are different, causing the parallel spacing of the entire loop to change, resulting in the inability of the gears to mesh and transmit normally, or using telescopic adjustment for plane adjustment, which results in errors and low transmission accuracy. In order to overcome these difficulties, the present invention provides a vertical closed single-joint universal coupling efficiency test device, which has the advantages of low power consumption, simple operation, high degree of automation, and infinite angle adjustment of the universal coupling. Summary of the invention

[0003] The problem to be solved by the present invention is how to realize the functions of reducing power consumption, simple operation, high degree of automation, infinite angle adjustment of the universal coupling, etc.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A vertical closed single-joint universal coupling efficiency test device, comprising: a power device, a test device, a torque loading device, a vertical angle adjustment device, and a housing; the power device is connected to the housing through a bearing seat, wherein the sliding gear of the power device is meshed with a cylindrical gear I in the test device and a cylindrical gear III in the torque loading device through sliding; the test device is connected to the housing through a bearing seat, the test device is connected to a cylindrical gear IV in the torque loading device through a cylindrical gear II, the universal coupling I in the test device is connected to a stepped shaft V in the vertical angle adjustment device through a rigid coupling; the torque loading device is connected to the housing through a bearing seat The output shaft of the forward and reverse speed clutch I in the torque loading device is connected to the input shaft of the universal coupling II in the vertical angle adjustment device through a rigid coupling; the rocker plate in the vertical angle adjustment device is connected to the housing through a small step shaft, the crankshaft in the vertical angle adjustment device is connected to the housing through a bearing seat, and the motor III in the vertical angle adjustment device is fixed to the housing with bolts; the test device, the torque loading device and the vertical angle adjustment device are interconnected to form a closed loop; the torque loading device replaces the load application of the single-joint three-pronged universal coupling under test by pre-torqueing the entire loop; the housing is fixed to the ground with anchor bolts.

[0006] Furthermore, the power device includes: a motor I, a stepped shaft I, a sliding gear, a shift fork, a connecting rod I, a crank, a stepped shaft II, and a motor II; the motor I is connected to the stepped shaft I through a rigid coupling, and the motor I is fixed to the housing through bolts; the sliding gear is installed in a keyway on the stepped shaft I through a sliding key to achieve axial sliding along the keyway; the stepped shaft I is fixed to the side wall of the housing through a bearing seat; one end of the shift fork is installed in the groove of the sliding gear, and the hole at the other end is sleeved on a crossbeam connected to the housing On the fork rod, a cylindrical surface is processed, the semicircular ends of the connecting rod I are connected to the middle rod of the connecting rod with bolts, a bushing is installed in the connecting hole, one connecting hole is connected to the fork through the cylindrical surface on the fork, and is not constrained in the circumferential direction, and there is a through hole at both ends of the crank, one through hole is connected to the other connecting hole of the connecting rod I through a small step shaft, the connecting rod I is fixed on the small step shaft, there is no relative movement, the crank is sleeved on the small step shaft, and the other through hole of the crank is connected to the motor II through the step shaft II and the rigid coupling. The step shaft II is fixed to the housing through a bearing seat, the motor II is fixed to the bottom of the housing through bolts, the shift fork, the connecting rod I and the crank form a crank slider mechanism, and the sliding gear is driven by the shift fork to move axially on the keyway portion of the step shaft I; when pre-torque is to be applied, the motor II rotates, driving the crank and the connecting rod I to rotate, thereby driving the shift fork and the sliding gear to move, the sliding gear is meshed with the cylindrical gear III in the torque loading device, and the motor I is started to drive the stepped shaft I and the sliding gear to rotate, thereby realizing pre-torque in the shaft system. When the torque requirement is reached, the motor I is turned off. When the test is performed, the motor II rotates to drive the crank and the connecting rod I to rotate, thereby driving the shift fork and the sliding gear to move. The sliding gear is meshed with the cylindrical gear I in the test device. The motor I is turned on to drive the stepped shaft I and the sliding gear to rotate, thereby driving the stepped shaft I in the test device to rotate. When the test is completed, the motor I is turned off.

[0007] Furthermore, the test device includes: a stepped shaft III, a cylindrical gear I, a cylindrical gear II, a torque sensor I, a universal coupling I, and a torque sensor II; the stepped shaft III is connected to the side wall of the box body through a bearing seat; one axial end of the cylindrical gear I is positioned by the shoulder of the stepped shaft III and is positioned circumferentially with a key, the other end of the cylindrical gear I is positioned by a bearing seat through a sleeve, one axial end of the cylindrical gear II is positioned by the shaft ring of the stepped shaft III and the other end is tightened with a double nut and is circumferentially keyed to the stepped shaft III; the torque sensor I measures the input shaft torque of the universal coupling I, one end of the torque sensor I is connected to the stepped shaft III through a rigid coupling, and the other end is connected to the input shaft of the universal coupling I by a rigid coupling; the universal coupling I is the universal coupling to be tested, which is suitable for any universal coupling. Here, a three-fork universal coupling is taken as an example, the input shaft and the output shaft are both solid shafts, and the output shaft is connected to the torque sensor II by a rigid coupling; the torque sensor II measures the universal coupling The output shaft torque of the universal coupling I, the other end of the torque sensor II is connected to the stepped shaft V in the vertical angle adjustment device through a rigid coupling; when the test starts, the sliding gear in the power device meshes with the cylindrical gear I and rotates, the cylindrical gear I drives the stepped shaft III to rotate, thereby driving the shaft in the torque sensor I to rotate, and the torque of the input shaft of the universal coupling I is measured, the universal coupling I rotates with the stepped shaft III, and then drives the shaft of the torque sensor II to rotate, and measures the torque of the output shaft of the universal coupling I, the output shaft end and the input shaft end of the universal coupling I are both equipped with infrared speed sensors, respectively measuring the speed of the input shaft and the output shaft, respectively multiplying the torque of the input shaft and the output shaft by their speeds, respectively obtaining the power of the input shaft and the output shaft through programming, and dividing the output shaft power by the input shaft power, thereby obtaining the efficiency of the universal coupling I; at the same time, the stepped shaft III drives the cylindrical gear II to rotate, thereby driving the cylindrical gear IV in the torque loading device to rotate.

[0008] Furthermore, the torque loading device includes: a stepped shaft IV, a cylindrical gear III, a cylindrical gear IV, and a forward and reverse speed clutch I; the stepped shaft IV is connected to the side wall of the box body through a bearing seat; one axial end of the cylindrical gear III is positioned by the shoulder of the stepped shaft IV, and is positioned circumferentially with a key, and the other end of the cylindrical gear III is positioned by the bearing seat through a sleeve, one axial end of the cylindrical gear IV is positioned by the shaft ring of the stepped shaft IV, and the other end is tightened with a double nut, and is connected to the stepped shaft IV circumferentially with a key, and the cylindrical The gear IV is meshed with the cylindrical gear II in the test device; the forward and reverse speed clutch I is used to generate relative rotation between the two shafts, the input shaft is a hollow shaft, which is sleeved on the stepped shaft IV, and is positioned axially with a shoulder and circumferentially with a key; the output shaft is a solid shaft, which is connected to the input shaft of the universal coupling II in the vertical angle adjustment device with a rigid coupling; when pre-torque is to be applied, the sliding gear in the power device is meshed with the cylindrical gear III in the torque loading device, the motor I is turned on, and the sliding gear drives the The cylindrical gear III rotates, thereby driving the stepped shaft III to rotate. At this time, the input shaft of the forward and reverse speed clutch I idles in the output shaft, and the output shaft is stationary. The output shaft is connected to the output shaft of the universal coupling I in the test device through the vertical angle adjustment device and is stationary. The input shaft of the forward and reverse speed clutch I is connected to the stepped shaft III through the cylindrical gear III and the cylindrical gear II in the test device, and then connected to the input shaft of the universal coupling I through a rigid coupling and rotates, so that a certain torque is generated between the input shaft and the output shaft of the universal coupling I, and the load of the universal coupling I is applied by using the generated torque. The torque sensor I in the test device displays the value of the pre-torque. When the predetermined value is reached, the motor I is turned off. When testing, the cylindrical gear II drives the cylindrical gear IV to rotate, thereby driving the stepped shaft IV to rotate, and then drives the claw wheel and the outer ring in the forward and reverse speed clutch I to rotate, and finally drives the stepped shaft VI in the vertical angle adjustment device to rotate.

[0009] Furthermore, the vertical angle adjustment device includes: a rocker plate, a stepped shaft V, a cylindrical gear V, a universal coupling II, a stepped shaft VI, a cylindrical gear VI, a forward and reverse speed clutch II, a connecting rod II, a crankshaft, a bevel gear, a bevel gear shaft, and a motor III; the rocker plate is an L-shaped right-angle steel plate, one plane of which is horizontal and the other plane is perpendicular to the bottom surface of the box body, a triangular plate is welded at each end of the horizontal right-angle surface, the thickness of the triangular plate is equal to the thickness of the right-angle steel plate, a through hole is machined on each of the two triangular plates, the center line of the two through holes is parallel to the stepped shaft V and the stepped shaft VI, and the axis of the triangular plate through hole on the side of the forward and reverse speed clutch I close to the torque loading device is aligned with the axis of the test device The centers of the universal coupling I and the universal coupling II are on the same straight line, the through hole of the triangular plate at this end is sleeved on a small step shaft, which is connected to the bottom surface of the box body through the rolling bearing on the small step shaft, and is fixed to the small step shaft with a key in the circumferential direction, and the rocking plate can realize rotation around the axis of the small step shaft; the step shaft V is connected to the rocking plate vertically and the right-angled surface of the box base through the bearing seat; one axial end of the cylindrical gear V is positioned by the step shaft V shaft ring, and is positioned by a key in the circumferential direction, and the other end of the cylindrical gear V is positioned by a double nut; the universal coupling II and the universal coupling I of the test device are exactly the same couplings, and a three-fork universal coupling is selected. The universal coupling II realizes The synchronous angle change with the universal coupling I has the same instantaneous rotation speed as the output shaft of the universal coupling I, so as to prevent the cylindrical gear V and the cylindrical gear VI from colliding and interfering with each other. The output shaft of the universal coupling II is connected to the step shaft VI through a rigid coupling; the step shaft VI is connected to the right-angle surface of the box base perpendicular to the rocking plate through a bearing seat, and directly below the step shaft V, the axes of the step shaft V and the step shaft VI are parallel, and the plane where the two axes are located is parallel to the vertical right-angle surface of the rocking plate; one axial end of the cylindrical gear VI is positioned with the step shaft VI collar and the circumferential direction is positioned with a key, and the other end of the cylindrical gear VI is positioned with a double screw The structure of the forward and reverse speed clutch II is completely equal to that of the forward and reverse speed clutch I. The input shaft and the output shaft are exchanged. The forward and reverse speed clutch II is used to control the stationary and rotating state of the step shaft VI. The input shaft is a solid shaft connected to the step shaft VI by a rigid coupling. The output shaft is sleeved on a small step shaft, which is positioned by a shoulder in the axial direction and a key in the circumferential direction. The other shaft section of the small step shaft is connected to the bearing seat by a key. The bearing seat is bolted to the horizontal plane of the rocker plate. The output shaft of the forward and reverse speed clutch II is always stationary. A through hole is processed at both ends of the connecting rod II, and the through hole at one end is connected to the through hole on another triangular plate on the horizontal plane of the remote plate through a small step shaft.The crankshaft is connected to the housing through a bearing seat, the crankshaft main shaft axis is perpendicular to the plane where the housing base is located, the crank segment in the crankshaft is connected to the through hole at the other end of the connecting rod II, and the connecting rod rotates along the crank end axis in the crankshaft; the bevel gear is installed on the crankshaft, one axial end is positioned by the crankshaft main shaft shoulder, the other end is pressed by the shaft end retaining ring, and the circumferential direction is positioned by a key, the crankshaft, the connecting rod II and the rocker plate form a crank rocker mechanism; the bevel gear part on the bevel gear shaft is meshed with the bevel gear, and the bevel gear is engaged with the bevel gear. The gear shaft is connected to the bottom of the box body through a bearing seat; the motor III is connected to the box body through bolts, and the motor III is connected to the bevel gear shaft through a rigid coupling; when the angle of the universal coupling I is to be adjusted, the motor I and the motor II of the power device are stopped, and the motor III is turned on to drive the bevel gear shaft, the shaft gear and the crankshaft to rotate, thereby driving the connecting rod II to make a planar motion, and then driving the rocker plate to rotate with the center of the universal coupling I and the universal coupling II as the center, according to The step shaft V and the step shaft VI are arranged vertically to solve the problem that the spacing of the entire circuit changes and the gears cannot mesh when the horizontal arrangement swings, and the purpose of stepless angle adjustment of the universal coupling I is achieved; when the torque is to be pre-applied, the motor III is turned off and the motor I is turned on to drive the input shaft of the universal coupling I to rotate, and the input shaft and the output shaft of the forward and reverse speed clutch II are synchronously stationary, so that the step shaft VI, the cylindrical gear VI, the cylindrical gear V and the step shaft V and the The output shafts of the universal coupling I are all stationary, so that the input shaft and the output shaft of the universal coupling I generate relative rotation, pre-apply torque, which is equivalent to applying a load on the entire circuit, eliminating the work of the original brake and the motor driving the brake, and achieving the purpose of energy saving; when testing, the output shaft of the forward and reverse speed clutch II is stationary, and the input shaft rotates with the stepped shaft VI, and the universal coupling I, the universal coupling II, the stepped shaft VI, the cylindrical gear VI, the stepped shaft V and the cylindrical gear V rotate synchronously. ;

[0010] Furthermore, the box body includes: an upper box body and a lower box body, which are cast and processed. The upper box body is fixed to the lower box body by bolts. The power device, the test device, the torque loading device and the vertical angle adjustment device are all in the box body. An operation panel is installed on the lower box body. Switches of the motor I, the motor II and the motor III are installed on the operation panel to achieve convenient operation. When installing the universal coupling I and the universal coupling II, remove the bolts and open the upper box body; when working, the upper box body is connected to the lower box body by bolts.

[0011] Furthermore, the forward and reverse speed clutch I comprises: a claw wheel, an outer ring, a steel ball, a spring push rod and a retaining ring; the claw wheel is a circular ring material, a small plane is milled from the outer ring to the inside, and then the vertical plane is milled flat, and a blind hole is drilled. The processing is performed once every 90 degrees of the circular ring axis, and a total of four times. The claw wheel is welded to a hollow cylinder, the axes are aligned, and a keyway is processed inside the hollow cylinder; the spring push rod is installed in the blind hole of the claw wheel, the spring is welded to the bottom of the blind hole, and the cylindrical push rod is welded to the top of the spring; the diameter of the steel ball is equal to the distance between the intersection of the processing plane on the vertical surface of the claw wheel and the outer ring, and the steel ball is clamped between the claw wheel, the The spring push rod and the outer ring are welded to the push rod in the spring push rod; the inner diameter of the outer ring is slightly larger than the outer diameter of the claw wheel, the outer ring is welded to a solid stepped shaft, the axes are aligned, and the outer ring is loosely sleeved on the outside of the claw wheel, the axes are aligned; the retaining ring is a circular ring, the outer diameter of the circular ring is equal to the outer diameter of the outer ring, the distance between the inner diameter and the outer diameter is slightly larger than the diameter of the steel ball, the retaining ring is connected to the outer ring with bolts to prevent the steel ball from being thrown out of the forward and reverse speed clutch I when rotating; the forward and reverse speed clutch I adjusts the direction and speed of the shaft connected to the forward and reverse speed clutch I through the different speeds of the claw wheel and the outer ring.

[0012] The beneficial effects of the present invention are as follows: a vertical closed single-joint universal coupling efficiency testing device of the present invention, in an experiment, the testing device, the torque loading device and the vertical angle adjustment device are interconnected to form a closed loop, and the pre-torque method is used to replace the load to achieve the purpose of low power consumption; when the universal coupling I needs to change the angle, the motor III is turned on to drive the bevel gear shaft, the bevel gear and the crankshaft to rotate, thereby driving the connecting rod II to move horizontally, and finally driving the shaking plate to rotate, so as to achieve the purpose of stepless angle adjustment of the universal coupling I and the universal coupling II, and the stepped shaft V and the stepped shaft VI are arranged vertically, which can solve the problem that when the horizontal arrangement swings, the entire circuit is not parallel, making the gears unable to mesh; when the universal coupling I needs to pre-torque, the sliding gear meshes with the cylindrical gear III, and the motor I is turned on to drive the stepped shaft II I and stepped shaft II, the input shaft of the forward and reverse speed clutch I is idling, driving the input shaft of the universal coupling I to rotate, the input shaft and output shaft of the forward and reverse speed clutch II are both stationary, so that the stepped shaft VI, the cylindrical gear VI, the cylindrical gear V, the stepped shaft V and the output shaft of the universal coupling I are all stationary, so that relative rotation is generated between the input shaft and the output shaft of the universal coupling I, and the purpose of automatic pre-torque is achieved; when testing, the sliding gear is engaged with the cylindrical gear I, the motor I is turned on, driving the stepped shaft I, the stepped shaft II and the stepped shaft III to rotate, the input shaft of the forward and reverse speed clutch I drives the output shaft to rotate, thereby driving the stepped shaft VI and the stepped shaft V to rotate synchronously, the input shaft of the forward and reverse speed clutch II is idling, the torque sensor I and the torque sensor II measure the torque, and the torques are divided to achieve the purpose of measuring the efficiency of the universal coupling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 : A three-dimensional diagram of a vertical closed single-joint universal coupling efficiency testing device of the present invention;

[0014] Figure 2 : A front view of a vertical closed single-joint universal coupling efficiency testing device of the present invention;

[0015] Figure 3 : A top view of a vertical closed single-joint universal coupling efficiency testing device of the present invention;

[0016] Figure 4 : A front view of a power device of a vertical closed single-joint universal coupling efficiency test device of the present invention;

[0017] Figure 5 : A front view of a power device of a vertical closed single-joint universal coupling efficiency test device of the present invention;

[0018] Figure 6 : A front view of a vertical closed single-joint universal coupling efficiency test device of the present invention;

[0019] Figure 7 : A front view of a torque loading device of a vertical closed single-joint universal coupling efficiency testing device of the present invention;

[0020] Figure 8 : A front view of a vertical angle adjustment device of a vertical closed single-joint universal coupling efficiency test device of the present invention;

[0021] Fig. 9 : A top view of a vertical angle adjustment device of a vertical closed single-joint universal coupling efficiency test device of the present invention;

[0022] Fig.10 : A cross-sectional view of a forward and reverse speed clutch I of a vertical closed single-joint universal coupling efficiency test device of the present invention;

[0023] Fig.11 : A partial view of a forward and reverse speed clutch I of a vertical closed single-joint universal coupling efficiency test device of the present invention;

[0024] Fig.12 : Structural diagram of closed loop angle adjustment;

[0025] In the figure: 1-power device, 2-test device, 3-torque loading device, 4-vertical angle adjustment device, 5-box, 11-motor I, 12-step shaft I, 13-sliding gear, 14-shift fork, 15-connecting rod I, 16-crank, 17-step shaft II, 18-motor II, 21-step shaft III, 22-cylindrical gear I, 23-cylindrical gear II, 24-torque sensor I, 25-universal coupling I, 26-torque sensor II, 31-step shaft IV, 32-cylindrical gear III, 33-cylindrical gear Column gear IV, 34-forward and reverse speed clutch I, 401-rocking plate, 402-step shaft V, 403-cylindrical gear V, 404-universal coupling II, 405-step shaft VI, 406-cylindrical gear VI, 407-forward and reverse speed clutch II, 408-connecting rod II, 409-crankshaft, 410-bevel gear, 411-bevel gear shaft, 412-motor III, 51-upper housing, 52-lower housing, 341-claw wheel, 342-outer ring, 343-steel ball, 344-spring push rod, 345-retaining ring. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings.

[0027] like Figure 1 , 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12, a vertical closed single-joint universal coupling efficiency test device, comprising: a power device 1, a test device 2, a torque loading device 3, a vertical angle adjustment device 4 and a housing 5; the power device 1 comprises: a motor I11, a stepped shaft I12, a sliding gear 13, a shift fork 14, a connecting rod I15, a crank 16, a stepped shaft II17 and a motor II18; the test device 2 comprises: a stepped shaft III21, a cylindrical gear I22, a cylindrical gear II23, a torque sensor I24, a universal coupling I25 and a torque sensor II26; the torque loading device 3 comprises: a stepped shaft IV3 1, cylindrical gear III32, cylindrical gear IV33 and forward and reverse speed clutch I34; the vertical angle adjustment device 4 includes: a rocker plate 401, a stepped shaft V402, a cylindrical gear V403, a universal coupling II404, a stepped shaft VI405, a cylindrical gear VI406, a forward and reverse speed clutch II407, a connecting rod II408, a crankshaft 409, a bevel gear 410, a bevel gear shaft 411 and a motor III412; the box body 5 includes: an upper box body 51 and a lower box body 52; the forward and reverse speed clutch I34 includes: a claw wheel 341, an outer ring 342, a steel ball 343, a spring push rod 344 and a retaining ring 345; the power device 1 is connected to the shaft The bearing seat is connected to the housing 5, wherein the sliding gear is meshed with the cylindrical gear I in the test device 2 or the cylindrical gear III in the torque loading device 3 by sliding; the test device 2 is connected to the housing 5 through a bearing seat, the test device 2 is connected to the gear IV in the torque loading device 3 through the gear II, the universal coupling I in the test device 2 is connected to the stepped shaft V in the vertical angle adjustment device 4 through a rigid coupling; the torque loading device 3 is connected to the housing 5 through a bearing seat, and the output shaft of the forward and reverse speed clutch I in the torque loading device 3 is connected to the stepped shaft V in the vertical angle adjustment device 4 through a rigid coupling. The shaft of the universal coupling II in the vertical angle adjustment device 4 is connected; the swing base in the vertical angle adjustment device 4 is connected to the box body 5 through a stepped shaft, the crankshaft in the vertical angle adjustment device 4 is connected to the box body 5 through a bearing seat, and the motor III in the vertical angle adjustment device 4 is fixed to the box body 5 with bolts; the test device 2, the torque loading device 3 and the vertical angle adjustment device 4 are interconnected to form a closed loop, and the pre-torque method is used to replace the load to achieve the effect of low power consumption; the box body 5 is fixed to the ground with anchor bolts, and the upper box body 51 is fixed to the lower box body 52 with bolts.

[0028] like Figure 1 , 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12, a vertical closed single-joint universal coupling efficiency test device works as follows: in the experiment, the test device, the torque loading device and the vertical angle adjustment device are interconnected to form a closed loop, and the pre-torque method is used to replace the load to achieve the effect of low power consumption; when the angle of the universal coupling I25 is to be adjusted, the motor I11 and the motor II18 are stopped, and the motor III412 is turned on to drive the bevel gear shaft 411, the shaft gear 410 and the crankshaft 409 to rotate, thereby driving the connecting rod II408 to make a planar motion, and then driving the rocking plate 401 to swing at a certain angle, so as to achieve the angle change of the universal coupling I25 and the function of stepless angle adjustment of the universal coupling I25; when pre-torque is to be applied, the sliding gear 13 in the power device 1 is meshed with the cylindrical gear III32 in the torque loading device 3, and the motor I11 is turned on. The sliding gear 13 drives the cylindrical gear III32 to rotate, thereby driving the stepped shaft III21 to rotate. At this time, the input shaft of the forward and reverse speed clutch I34 is idling in the output shaft, and the output shaft is stationary. The output shaft is connected to the output shaft of the universal coupling I25 in the test device 2 through the vertical angle adjustment device 4 and is stationary. The input shaft of the forward and reverse speed clutch I34 is connected to the input shaft of the universal coupling I25 through the cylindrical gear III32 and the test device. , and rotate, the input shaft and output shaft of the forward and reverse speed clutch II407 are synchronously stationary, so that the stepped shaft VI405, the cylindrical gear VI406, the cylindrical gear V403, the stepped shaft V402 and the output shaft of the universal coupling I25 are all stationary, so that a certain torque is generated between the input shaft and the output shaft of the universal coupling I25, and the torque sensor I24 in the test device 2 displays the value of the pre-torque, and when the predetermined value is reached, the motor I11 is turned off;When the test starts, the sliding gear 13 in the power device 1 meshes with the cylindrical gear I22 and rotates, and the cylindrical gear I22 drives the stepped shaft III21 to rotate, thereby driving the shaft in the torque sensor I24 to rotate, and the torque of the input shaft of the universal coupling I25 is measured. The universal coupling I25 rotates with the stepped shaft III21, and then drives the shaft of the torque sensor II26 to rotate, and the torque of the output shaft of the universal coupling I25 is measured. By dividing the measured output shaft torque of the universal coupling I25 by the input shaft torque, the output shaft torque of the universal coupling I25 can be obtained. The efficiency of the shaft device I25 is improved. At the same time, the stepped shaft III21 drives the cylindrical gear II23 to rotate, thereby driving the cylindrical gear IV in the torque loading device 3 to rotate, and then drives the claw wheel 341 and the outer ring 342 in the forward and reverse speed clutch I34 to rotate. The input shaft of the forward and reverse speed clutch II407 rotates with the stepped shaft VI405, and the output shaft is stationary. The universal coupling I25, the universal coupling II404, the stepped shaft VI405, the cylindrical gear VI406, the stepped shaft V402 and the cylindrical gear V403 rotate synchronously. ;

[0029] The protection scope of the present invention is not limited to this, and any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined by the claims.

Claims

1. A vertical closed single-joint universal coupling efficiency test device, characterized in that: include: A power device (1), a test device (2), a torque loading device (3), a vertical angle adjustment device (4), and a housing (5); the power device (1) comprises: a motor I (11), a stepped shaft I (12), a sliding gear (13), a shift fork (14), a connecting rod I (15), a crank (16), a stepped shaft II (17), and a motor II (18); the test device (2) comprises: a stepped shaft III (21), a cylindrical gear I (22), a cylindrical gear II (23), a torque sensor I (24), a universal coupling I (25), and a torque sensor II (26); the torque loading device (3) comprises: a stepped shaft IV (31), a cylindrical gear III (32), a cylindrical gear IV ( 33), forward and reverse speed clutch I (34); the vertical angle adjustment device (4) comprises: a rocker plate (401), a stepped shaft V (402), a cylindrical gear V (403), a universal coupling II (404), a stepped shaft VI (405), a cylindrical gear VI (406), a forward and reverse speed clutch II (407), a connecting rod II (408), a crankshaft (409), a bevel gear (410), a bevel gear shaft (411), and a motor III (412); the forward and reverse speed clutch I (34) comprises: a claw wheel (341), an outer ring (342), a steel ball (343), a spring push rod (344) and a retaining ring (345); the power device (1) is connected to the housing (5) through a bearing seat , wherein the sliding gear (13) of the power device (1) meshes with the cylindrical gear I (22) in the test device (2) and the cylindrical gear III (32) in the torque loading device (3) through sliding; the test device (2) is connected to the housing (5) through a bearing seat, the test device (2) is connected to the cylindrical gear IV (33) in the torque loading device (3) through a cylindrical gear II (23), the universal coupling I (25) in the test device (2) is connected to the stepped shaft V (402) in the vertical angle adjustment device (4) through a rigid coupling; the torque loading device (3) is connected to the housing (5) through a bearing seat, The output shaft of the forward and reverse speed clutch I (34) is connected to the input shaft of the universal coupling II (404) in the vertical angle adjustment device (4) through a rigid coupling; the rocker plate (401) in the vertical angle adjustment device (4) is connected to the housing (5) through a small step shaft, the crankshaft (409) in the vertical angle adjustment device (4) is connected to the housing (5) through a bearing seat, and the motor III (412) in the vertical angle adjustment device (4) is fixed to the housing (5) with bolts; the test device (2), the torque loading device (3) and the vertical angle adjustment device (4) are interconnected to form a closed loop; the housing (5) is fixed to the ground with anchor bolts.

2. A vertical closed single-joint universal coupling efficiency testing device as claimed in claim 1, characterized in that: The motor I (11) is connected to the stepped shaft I (12) via a rigid coupling, and the motor I (11) is fixed to the housing (5) via bolts; the sliding gear (13) is installed in the keyway on the stepped shaft I (12) via a sliding key to achieve axial sliding along the keyway; the stepped shaft I (12) is fixed to the side wall of the housing (5) via a bearing seat; one end of the shift fork (14) is installed in the groove of the sliding gear (13), and the hole at the other end is sleeved on the crossbeam connected to the housing (5); a cylindrical surface is machined on the rod of the shift fork (14), and the semicircular ends of the connecting rod I (15) are connected to the middle rod of the connecting rod by bolts, and the connecting hole is A bushing is installed, a connecting hole is connected to the shift fork (14) through the cylindrical surface on the shift fork (14) and is not constrained in the circumferential direction, both ends of the crank (16) have a through hole, one through hole is connected to the other connecting hole of the connecting rod I (15) through a small step shaft, the connecting rod I (15) is fixed on the small step shaft without relative movement, the crank (16) is loosely sleeved on the small step shaft, the other through hole of the crank (16) is connected to the motor II (18) through the step shaft II (17) and a rigid coupling, the step shaft II (17) is fixed to the housing (5) through a bearing seat, and the motor II (18) is fixed to the housing (5) by bolts. At the bottom of the housing (5), the shift fork (14), the connecting rod I (15) and the crank (16) form a crank slider mechanism. Driven by the shift fork (14), the sliding gear (13) moves axially in the keyway portion of the stepped shaft I (12). When pre-torque is to be applied, the motor II (18) rotates, driving the crank (16) and the connecting rod I (15) to rotate, thereby driving the shift fork (14) and the sliding gear (13) to move. The sliding gear (13) meshes with the cylindrical gear III (32) in the torque loading device (3). The motor I (11) is started, driving the stepped shaft I (12) and the sliding gear (13) rotate, thereby achieving pre-torque in the shaft system. When the torque requirement is reached, the motor I (11) is turned off. When a test is performed, the motor II (18) rotates, driving the crank (16) and the connecting rod I (15) to rotate, thereby driving the shift fork (14) and the sliding gear (13) to move. The sliding gear (13) meshes with the cylindrical gear I in the test device (2). The motor I (11) is turned on, driving the stepped shaft I (12) and the sliding gear (13) to rotate, thereby driving the stepped shaft I in the test device (2) to rotate. When the test is completed, the motor I (11) is turned off.

3. A vertical closed single-joint universal coupling efficiency testing device as claimed in claim 1, characterized in that: The stepped shaft III (21) is connected to the side wall of the housing (5) via a bearing seat; one axial end of the cylindrical gear I (22) is positioned by the shoulder of the stepped shaft III (21) and is positioned circumferentially by a key; the other end of the cylindrical gear I (22) is positioned by the bearing seat via a sleeve; one axial end of the cylindrical gear II (23) is positioned by the collar of the stepped shaft III (21) and the other end is tightened by a double nut and is connected circumferentially to the stepped shaft III (21) by a key; the torque sensor I (24) measures the input shaft torque of the universal coupling I (25); the torque sensor I (24) one end is connected to the stepped shaft III (21) through a rigid coupling, and the other end is connected to the input shaft of the universal coupling I (25) through a rigid coupling; the universal coupling I (25) is the universal coupling to be tested, which is suitable for any universal coupling. Here, a three-fork universal coupling is taken as an example. The input shaft and the output shaft are both solid shafts, and the output shaft is connected to the torque sensor II (26) through a rigid coupling; the torque sensor II (26) measures the output shaft torque of the universal coupling I (25), and the other end of the torque sensor II (26) is connected to the input shaft of the universal coupling I (25) through a rigid coupling. The shaft is connected to the stepped shaft V (402) in the vertical angle adjustment device (4); when the test starts, the sliding gear (13) in the power device (1) meshes with the cylindrical gear I (22) and rotates, and the cylindrical gear I (22) drives the stepped shaft III (21) to rotate, thereby driving the shaft in the torque sensor I (24) to rotate, and the universal coupling I (25) is rotated with the stepped shaft III (21), thereby driving the shaft of the torque sensor II (26) to rotate, and the measurement of the torque of the input shaft of the universal coupling I (25) is carried out. The torque of the output shaft of the universal coupling I (25) is measured. The output shaft end and the input shaft end of the universal coupling I (25) are both equipped with infrared speed sensors to measure the rotation speeds of the input shaft and the output shaft respectively. The torques of the input shaft and the output shaft are multiplied by their rotation speeds respectively. The power of the input shaft and the output shaft are obtained by programming. The power of the output shaft is divided by the power of the input shaft to obtain the efficiency of the universal coupling I (25). At the same time, the stepped shaft III (21) drives the cylindrical gear II (23) to rotate, thereby driving the cylindrical gear IV (33) in the torque loading device (3) to rotate.

4. A vertical closed single-joint universal coupling efficiency testing device as claimed in claim 1, characterized in that: The stepped shaft IV (31) is connected to the side wall of the housing (5) via a bearing seat; one axial end of the cylindrical gear III (32) is positioned by the shoulder of the stepped shaft IV (31) and is positioned circumferentially by a key; the other end of the cylindrical gear III (32) is positioned by the bearing seat via a sleeve; one axial end of the cylindrical gear IV (33) is positioned by the collar of the stepped shaft IV (31) and the other end is tightened by a double nut and is connected circumferentially to the stepped shaft IV (31) by a key; the cylindrical gear IV (33) is meshed with the cylindrical gear II (23) in the test device (2); the forward and reverse speed clutch I ( 34) is used to generate relative rotation between the two shafts, the input shaft is a hollow shaft, which is sleeved on the stepped shaft IV (31), and is positioned axially by a shaft shoulder and circumferentially by a key, and the output shaft is a solid shaft, which is connected to the input shaft of the universal coupling II (404) in the vertical angle adjustment device (4) by a rigid coupling; when pre-torque is to be applied, the sliding gear (13) in the power device (1) is meshed with the cylindrical gear III (32) in the torque loading device (3), the motor I (11) is turned on, and the sliding gear (13) drives the cylindrical gear III (32) to rotate, thereby driving the stepped shaft III (21) rotates, at this time, the input shaft of the forward and reverse speed clutch I (34) idles in the output shaft, the output shaft is stationary, the output shaft is connected to the output shaft of the universal coupling I (25) in the test device (2) through the vertical angle adjustment device (4), and is stationary, the input shaft of the forward and reverse speed clutch I (34) is connected to the stepped shaft III (21) through the cylindrical gear III (32) and the cylindrical gear II (23) in the test device (2), and then connected to the input shaft of the universal coupling I (25) through the rigid coupling, and rotates, so that the input shaft of the universal coupling I (25) A certain torque is generated between the shaft and the output shaft, and the generated torque is used to realize the load application of the universal coupling I (25). The torque sensor I (24) in the test device (2) displays the value of the pre-torque. When the predetermined value is reached, the motor I (11) is turned off. When testing, the cylindrical gear II (23) drives the cylindrical gear IV (33) to rotate, thereby driving the stepped shaft IV (31) to rotate, and then drives the claw wheel and the outer ring in the forward and reverse speed clutch I (34) to rotate, and finally drives the stepped shaft VI (405) in the vertical angle adjustment device (4) to rotate.

5. A vertical closed single-joint universal coupling efficiency testing device as claimed in claim 1, characterized in that: The rocking plate (401) is an L-shaped right-angle steel plate, one plane of which is horizontal and the other plane is perpendicular to the bottom surface of the box body (5). A triangular plate is welded at each end of the horizontal right-angle surface. The thickness of the triangular plate is equal to the thickness of the right-angle steel plate. A through hole is processed on each of the two triangular plates. The center line of the two through holes is parallel to the stepped shaft V (402) and the stepped shaft VI (405). The axis of the triangular plate through hole on the side of the forward and reverse speed clutch I (34) of the torque loading device (3) is on the same straight line as the center of the universal coupling I (25) and the universal coupling II (404) in the test device (2). The through hole of the triangular plate at this end is sleeved on a small stepped shaft and connected to the bottom of the box body (5) through a rolling bearing on the small stepped shaft. The rocking plate (401) is connected to the rocking plate (401) through a bearing seat and is fixed on the small step shaft in the circumferential direction with a key. The rocking plate (401) can rotate around the axis of the small step shaft. The step shaft V (402) is connected to the rocking plate (401) through a bearing seat and is perpendicular to the right-angle surface of the base of the box body (5). One axial end of the cylindrical gear V (403) is positioned by the collar of the step shaft V (402) and is positioned by a key in the circumferential direction. The other end of the cylindrical gear V (403) is positioned by a double nut. The universal coupling II (404) is completely the same as the universal coupling I (25) of the test device (2). A three-fork universal coupling is selected. The universal coupling II (404) can achieve synchronous angle change with the universal coupling I (25) and is compatible with the universal coupling. The output shaft of the universal joint II (404) has an equal instantaneous rotation speed to prevent the cylindrical gear V (403) and the cylindrical gear VI (406) from colliding and interfering with each other. The output shaft of the universal joint II (404) is connected to the stepped shaft VI (405) through a rigid coupling; the stepped shaft VI (405) is connected to the rocking plate (401) through a bearing seat and is perpendicular to the right angle surface of the base of the box body (5), and directly below the stepped shaft V (402), the axes of the stepped shaft V (402) and the stepped shaft VI (405) are parallel, and the plane where the two axes are located is parallel to the vertical right angle surface of the rocking plate (401); one axial end of the cylindrical gear VI (406) is connected to the stepped shaft VI (405) The shaft ring is used for positioning, and the circumferential direction is used for positioning. The other end of the cylindrical gear VI (406) is positioned by a double nut. The structure of the forward and reverse speed clutch II (407) is completely equal to that of the forward and reverse speed clutch I (34). The input shaft and the output shaft are interchanged. The forward and reverse speed clutch II (407) is used to control the stationary and rotating state of the stepped shaft VI (405). The input shaft is a solid shaft connected to the stepped shaft VI (405) by a rigid coupling. The output shaft is sleeved on a small stepped shaft, and the axial direction is positioned by a shaft shoulder and the circumferential direction is positioned by a key. The other shaft section of the small stepped shaft is connected to the bearing seat by a key. The bearing seat is bolted to the horizontal plane of the rocker plate (401). The output shaft of the forward and reverse speed clutch II (407) is always stationary.A through hole is machined at both ends of the connecting rod II (408), and the through hole at one end is connected to a through hole on another triangular plate on the horizontal plane of the rocking plate (401) through a small stepped shaft; the crankshaft (409) is connected to the housing (5) through a bearing seat, the main shaft axis of the crankshaft (409) is perpendicular to the plane where the base of the housing (5) is located, the crank section in the crankshaft (409) is connected to the through hole at the other end of the connecting rod II (408), and the connecting rod rotates along the crank end axis in the crankshaft (409); the bevel gear (410) is installed on the crankshaft (409), one axial end is positioned by the main shaft shoulder of the crankshaft (409), and the other end is positioned by a shaft end retaining ring The crankshaft (409), the connecting rod II (408) and the rocking plate (401) are pressed and positioned in the circumferential direction with a key. The crankshaft (409), the connecting rod II (408) and the rocking plate (401) form a crank rocker mechanism. The bevel gear part on the bevel gear shaft (411) is meshed with the bevel gear (410), and the bevel gear shaft (411) is connected to the bottom of the housing (5) through a bearing seat. The motor III (412) is connected to the housing (5) through bolts, and the motor III (412) is connected to the bevel gear shaft (411) through a rigid coupling. When the angle of the universal coupling I (25) is to be adjusted, the motor I (11) and the motor II (18) of the power device (1) are stopped, and the motor III (412) is turned on, driving the bevel gear shaft (411), the bevel gear (410) and the crankshaft (409) to rotate, thereby driving the connecting rod II (408) to make a planar motion, and then driving the rocker plate (401) to swing at a certain angle with the center of the universal coupling I (25) and the center of the universal coupling II (404) as the rotation center. The stepped shaft V (402) and the stepped shaft VI (405) are arranged vertically to solve the problem that when the horizontal arrangement swings, the spacing of the entire circuit changes, making it impossible for the gears to mesh, thereby achieving the purpose of stepless angle adjustment of the universal coupling I (25); when pre-torque is required, the electric The motor III (412) is turned off, and the motor I (11) is turned on, driving the input shaft of the universal coupling I (25) to rotate, and the input shaft and the output shaft of the forward and reverse speed clutch II (407) are synchronously stationary, so that the stepped shaft VI (405), the cylindrical gear VI (406), the cylindrical gear V (403), the stepped shaft V (402) and the output shaft of the universal coupling I (25) are all stationary, so that the input shaft and the output shaft of the universal coupling I (25) are relatively rotated, and the pre-torque is applied. In the entire circuit, it is equivalent to applying a load, eliminating the work of the original brake and the motor driving the brake, and achieving the purpose of energy saving;When testing, the output shaft of the forward and reverse speed clutch II (407) is stationary, the input shaft rotates with the stepped shaft VI (405), and the universal coupling I (25), the universal coupling II (404), the stepped shaft VI (405), the cylindrical gear VI (406), the stepped shaft V (402) and the cylindrical gear V (403) rotate synchronously. ; 6. A vertical closed single-joint universal coupling efficiency testing device as claimed in claim 1, characterized in that: The housing (5) comprises an upper housing (51) and a lower housing (52), which are cast. The upper housing (51) is fixed to the lower housing (52) by bolts. The power device (1), the test device (2), the torque loading device (3) and the vertical angle adjustment device (4) are all inside the housing (5). An operation panel is installed on the lower housing (52). Switches of the motor I (11), the motor II (18) and the motor III (412) are installed on the operation panel to facilitate operation. When installing the universal coupling I (25) and the universal coupling II (404), the bolts are removed and the upper housing (51) is opened. When working, the upper housing (51) is connected to the lower housing (52) by bolts.

7. A vertical closed single-joint universal coupling efficiency testing device as claimed in claim 4, characterized in that: The claw wheel (341) is a circular ring material. A small plane is milled from the outer ring (342) to the inside, and then the vertical plane is milled flat and a blind hole is drilled. The processing is performed once every 90 degrees of the circular ring axis, and a total of four processing times. The claw wheel (341) is welded to a hollow cylinder, the axes are aligned, and a keyway is processed inside the hollow cylinder; the spring push rod (344) is installed in the blind hole of the claw wheel (341), the spring is welded to the bottom of the blind hole, and the cylindrical push rod is welded to the top of the spring; the diameter of the steel ball (343) is equal to the distance between the intersection of the processing plane on the vertical surface of the claw wheel (341) and the outer ring (342), and the steel ball (343) is sandwiched between the claw wheel (341), the spring push rod (344) and the outer ring (342), and the spring push rod (344) is welded to the bottom of the blind hole, and the cylindrical push rod is welded to the top of the spring. The outer ring (342) is welded to a top rod; the inner diameter of the outer ring (342) is slightly larger than the outer diameter of the claw wheel; the outer ring (342) is welded to a solid stepped shaft, the axes of which are aligned; the outer ring (342) is loosely sleeved on the outside of the claw wheel (341), the axes of which are aligned; the retaining ring (345) is a circular ring, the outer diameter of the circular ring is equal to the outer diameter of the outer ring (342), the distance between the inner diameter and the outer diameter is slightly larger than the diameter of the steel ball (343), the retaining ring (345) and the outer ring (342) are connected by bolts to prevent the steel ball (343) from being thrown out of the forward and reverse speed clutch I (34) when rotating; the forward and reverse speed clutch I (34) adjusts the direction and speed of the shaft connected to the forward and reverse speed clutch I (34) by the different speeds of the claw wheel (341) and the outer ring (342).

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