CN210464927U - Comprehensive test rack for contact spots and transmission errors of transmission assembly - Google Patents
Comprehensive test rack for contact spots and transmission errors of transmission assembly Download PDFInfo
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- CN210464927U CN210464927U CN201921099572.4U CN201921099572U CN210464927U CN 210464927 U CN210464927 U CN 210464927U CN 201921099572 U CN201921099572 U CN 201921099572U CN 210464927 U CN210464927 U CN 210464927U
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Abstract
The utility model provides a contact spot and transmission error comprehensive test rack for a transmission assembly, which integrates the functions of a contact spot test and a transmission error test, avoids the need of two test racks and improves the test efficiency; meanwhile, the contact spot test is carried out in advance before the transmission error test, so that the condition that the transmission error measurement value is not true or inaccurate due to poor contact state is ensured. The test bench comprises a bench body, an angle dislocation adjusting assembly, a driving assembly and a loading assembly, wherein the driving assembly is connected with an input shaft of a transmission test piece, and the loading assembly is connected with an output shaft of the transmission test piece; the angle dislocation adjusting assembly has a gear meshing dislocation quantity simulation function, and can realize the measurement of the transmission error of a single pair of gears under the condition of dislocation.
Description
Technical Field
The utility model relates to a test rack, concretely relates to contact patch and transmission error comprehensive test rack of derailleur assembly.
Background
At present, when a transmission assembly is subjected to a contact spot test and a transmission error test, two tests are required to be respectively carried out through two test racks, and a test piece needs to be installed again in each test, so that the test efficiency is low; and usually, transmission error test is directly carried out, and poor contact state of gears in the transmission assembly can cause unreal or inaccurate transmission error measurement value.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a contact patch and transmission error comprehensive test rack for derailleur assembly, this test rack has integrateed the experimental function of contact patch and transmission error, has avoided needing to do two kinds of test racks, has improved efficiency of software testing.
The comprehensive test bench for the contact spot and the transmission error of the transmission assembly comprises: the loading device comprises a table body, a driving assembly and a loading assembly, wherein the driving assembly and the loading assembly are mounted on the table body;
the drive assembly includes: the driving motor, the driving end reducer and the driving main shaft box assembly; the output end of the driving motor is connected with one end of a driving spindle in the driving spindle box assembly through the driving end speed reducer, and a driving end torque sensor is arranged on a shaft system between the driving end speed reducer and the driving spindle box assembly; the other end of a driving main shaft in the driving main shaft box assembly is connected with an input shaft of a tested piece of the transmission; an angle measuring module is arranged on the driving main shaft;
the loading assembly comprises: the loading motor, the loading end speed reducer and the loading main shaft box assembly are arranged on the main shaft box; the output end of the loading motor is connected with one end of a loading spindle in the loading spindle box assembly through a loading end speed reducer; a loading end torque sensor is arranged on a shaft system between the loading end speed reducer and the loading main shaft box assembly; the other end of a loading main shaft in the loading main shaft box assembly is connected with an output shaft of a tested piece of the transmission, and an angle measuring module is installed on the loading main shaft.
As an optimal mode of the present invention, the present invention further includes: the driving sliding plate is used for mounting the driving assembly on the table body; the axial direction of the driving assembly is longitudinal, and the direction vertical to the longitudinal direction on the table body supporting surface is transverse; the driving sliding plate is arranged on the table body through a transverse guide rail, and the driving sliding plate can transversely move on the table body along the transverse guide rail.
As an optimal mode of the present invention, the present invention further includes: loading the sliding plate; the loading assembly is arranged on the table body through the loading sliding plate; the axial direction of the driving assembly is longitudinal, and the direction vertical to the longitudinal direction on the table body supporting surface is transverse; the loading sliding plate is arranged on the table body through a longitudinal guide rail, and the loading sliding plate can move longitudinally on the table body along the longitudinal slide rail.
As an optimal mode of the present invention, the present invention further includes: an angle dislocation adjusting component; the angle dislocation adjusting part includes: the deflection sliding plate, the rotating shaft and the angle dislocation adjusting mechanism; the driving sliding plate is arranged on the deflection sliding plate through a transverse guide rail, the deflection sliding plate is vertically fixed on the table body through a rotating shaft, and the deflection sliding plate can rotate around the rotating shaft on the table body under the action of the angle dislocation adjusting mechanism;
the two gears which are meshed in a staggered mode are respectively a gear A and a gear B, wherein the gear A is installed on the table body, the gear B is installed on the deflection sliding plate, the deflection sliding plate drives the gear B to rotate, and the included angle between the axes of the gear A and the gear B is changed.
Has the advantages that:
(1) the test bench integrates the functions of a transmission assembly contact spot test and a transmission error test, can perform the contact spot test and the transmission error test through one test bench, avoids the need of two test benches, and improves the test efficiency.
(2) The contact spot test is carried out in advance before the transmission error test is carried out, so that the condition that the transmission error measurement value is not true or inaccurate due to poor contact state can be effectively avoided.
(3) The angle dislocation adjusting mechanism and the deflection sliding plate have a gear meshing dislocation amount simulation function, and measurement of transmission errors of a single pair of gears under a dislocation working condition caused by manufacturing, assembling or load deformation can be realized, so that the transmission error test working condition of the transmission gear train is closer to the actual condition.
(4) The driving motor and the loading motor are both motors with zero-speed loaded starting functions, the test bench has low-speed stable running performance through operation control, contact spot tests of a tested piece (a to-be-tested transmission assembly) of the transmission under a specific load working condition can be realized, and therefore the test bench can be loaded under a specified load torque working condition before the rotating speed is started, so that the gear meshing contact state and the load form a corresponding relation, and the meshing contact conditions of the tested piece gear of the transmission under different loads are truly reflected.
(5) The drive end shaft coupling and the loading end shaft coupling both adopt double-diaphragm elastic shaft couplings, have certain error compensation effect in the axial direction and the tipping direction, avoid influencing a measurement result under the condition that the coaxiality of shaft systems at two ends is not good, and further guarantee the measurement accuracy.
(6) The angle measurement module is installed at the non-loading end of the shaft head and is close to one side of the transmission tested piece, and therefore the fact that errors are introduced due to shafting load deformation to influence transmission error measurement results can be avoided.
(7) The driving sliding plate has a transverse position adjusting function and can adapt to the installation of tested pieces of transmissions with different center distances.
(8) The loading sliding plate has a longitudinal position adjusting function and can adapt to the installation of tested pieces of transmissions with different lengths, specifications and dimensions.
(9) The main shaft box assembly realizes the design target of high rigidity and high coaxiality through the bearing combination, and ensures that the transmission is connected with the input and the output of a test piece in a high-precision manner.
Drawings
FIG. 1 is a schematic view showing the structure of a test stage in example 1;
FIG. 2 is a schematic structural diagram of a driving spindle box assembly;
FIG. 3 is a schematic view showing the structure of a test stage in example 2;
fig. 4 is a schematic structural view of the angular misalignment adjusting mechanism.
Wherein: 1-driving motor, 2-driving end reducer, 3-driving reducer support, 4-driving end torque sensor, 5-driving end coupler, 6-driving spindle box assembly, 7-tested piece support, 8-speed changer tested piece, 9-loading spindle box assembly, 10-loading end coupler, 11-loading end torque sensor, 12-loading reducer support, 13-loading end reducer, 14-loading motor, 15-loading motor support, 16-loading sliding plate, 17-platform body, 18-loading torque sensor support, 19-driving torque sensor support, 20-driving sliding plate, 21-driving motor support, 22-deflection sliding plate, 23-angle dislocation adjusting mechanism, 24-driving spindle, and, 25-driving spindle box body, 26-angle measuring module, 27-trapezoidal screw, 28-fixed nut seat, 29-connecting shaft, 30-pin shaft and 31-movable nut seat.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1:
the embodiment provides a high-precision transmission assembly contact spot and transmission error comprehensive test bench capable of performing a contact spot test and a transmission error test.
As shown in fig. 1, the test stand comprises: the device comprises a table body 17, a driving assembly and a loading assembly, wherein the table body 17 is used as a supporting table for a deflection sliding plate 22, an angle dislocation adjusting mechanism 23, a bearing driving assembly and the loading assembly.
The drive assembly includes: the device comprises a driving motor 1, a driving end speed reducer 2, a driving main spindle box assembly 6 and a driving sliding plate 20. The axial direction of the driving component is vertical, and the direction vertical to the vertical direction on the supporting surface of the table body 17 is horizontal. The driving sliding plate 20 is mounted on the table body 17 through a transverse guide rail, and the driving sliding plate 20 can transversely move on the table body 17 along the transverse guide rail, so that the driving assembly has a transverse position adjusting function, and the transmission device is suitable for mounting of a tested piece of a transmission with different center distances (namely, the transverse distance between an input shaft and an output shaft when the input shaft and the output shaft of the transmission device are not coaxial). The driving motor 1 is fixed on the driving sliding plate 20 through a driving motor support 21, and the output end of the driving motor 1 is coaxially connected with the input end of the driving end speed reducer 2; drive end speed reducer 2 is through driving 3 fixed mounting drive slide 20 of speed reducer support on, and drive end speed reducer 2's output links to each other with drive headstock assembly 6 through the shafting that is provided with drive end torque sensor 4 simultaneously, specifically is: the output end of the driving end speed reducer 2 is connected with one end of a driving end torque sensor 4 through a flange, the driving end torque sensor 4 is supported on a driving sliding plate 20 through a driving torque sensor support 19, meanwhile, the other end of the driving end torque sensor 4 is connected with one end of a driving end coupler 5 through a flange, the other end of the driving end coupler 5 is connected with one end of a driving main spindle box assembly 6, and the other end of the driving main spindle box assembly 6 is connected with an input shaft of a tested piece 8 of a transmission through a transmission shaft. The driving spindle box assembly 6 is supported on a driving sliding plate 20, the transmission tested piece 8 is fixedly arranged on a tested piece support 7 through an adaptive connecting disc, and the tested piece support 7 is fixed on the driving sliding plate 20. By test piece support 7 adoption L type structure, simple structure, its vertical face is by test piece 8 connection terminal surface as the derailleur, during the use, only need guarantee by test piece support 7 derailleur by the straightness that hangs down of test piece connection terminal surface to and by the plane degree of test piece support 7 bottom surface can.
The loading assembly comprises: a loading motor 14, a loading end speed reducer 13, a loading sliding plate 16 and a loading main spindle box assembly 9. The loading sliding plate 16 is mounted on the table body 17 through a longitudinal guide rail, that is, the loading sliding plate 16 can move longitudinally on the table body 17 along the longitudinal guide rail, so that the loading sliding plate 17 has a longitudinal position adjusting function, and the mounting of tested pieces of transmissions with different lengths, specifications and dimensions can be adapted. The loading motor 14 is fixedly arranged on the loading sliding plate 16 through a loading motor support 15, and the output end of the loading motor 14 is coaxially connected with the input end of the loading end speed reducer 13; the loading end reducer 13 is fixedly installed on a loading sliding plate 16 through a loading reducer support 12. The output end of the loading end speed reducer 13 is connected with the loading main shaft box assembly 9 through a shaft system provided with a loading end torque sensor 11, and specifically comprises the following steps: the output end of the loading end speed reducer 13 is connected with one end of a loading end torque sensor 11 through a flange, the other end of the loading end torque sensor 11 is connected with one end of a loading end coupler 10 through a flange, the other end of the loading end coupler 10 is coaxially connected with one end of a loading main spindle box assembly 9, and the other end of the loading main spindle box assembly 9 is connected with an output shaft of a tested piece 8 of a transmission through a transmission shaft.
The structure of the driving headstock assembly 6 is shown in fig. 2, and comprises: a driving spindle 24, a driving spindle box 25 and an angle measuring module 26; the driving spindle box 25 is fixedly installed on the driving slide plate 20, the driving spindle 24 and the driving spindle box 25 are installed in a sealing combination through bearings, that is, mounting holes of the driving spindle 24 are formed in two longitudinal end faces of the driving spindle box 25, the driving spindle 24 penetrates through the mounting holes in the two end faces, is supported on the driving spindle box 25 through the bearings in the mounting holes, and then is sealed in the two mounting holes. After the driving main shaft 24 passes through the two mounting holes on the driving main shaft box 25, one end of the driving main shaft is connected with the driving end coupler 5, the other end of the driving main shaft is connected with the input shaft of the transmission tested piece 8, and an angle measuring module 26 is mounted at the connecting end (the end is a non-loading end) of the driving main shaft 24 and the input shaft of the transmission tested piece 8 and used for measuring the rotation angle of the input shaft of the transmission tested piece 8 in real time.
The structure of the loading spindle box assembly 9 is the same as that of the driving spindle box assembly 6, and comprises the following components: a loading main shaft and a loading main shaft box body; the loading main shaft and the loading main shaft box are installed in a sealing combination mode through a bearing, and an angle measuring module 26 is installed at the connecting end (the end is a non-loading end) of the loading main shaft and the output shaft of the tested piece 8 of the transmission and used for measuring the rotating angle of the output shaft of the tested piece 8 of the transmission in real time.
Among the above-mentioned parts, driving motor 1 and loading motor 14 all adopt the motor of high performance, possess zero-speed area and carry the start function, possess low-speed stable operation performance, can realize that the derailleur is tested by test piece 8 and is carried out the contact spot test under specific load operating mode, and the test bench can be before the rotational speed starts, and the loading is under appointed load moment of torsion operating mode to make gear meshing contact state and load form corresponding relation.
The driving end speed reducer 2 and the loading end speed reducer 13 both adopt high-precision low-backlash products; the driving end coupling 5 and the loading end coupling 10 both adopt double-diaphragm elastic couplings.
The driving main shaft box assembly 6 and the loading main shaft box assembly 9 are consistent in overall dimension, and influence on transmission error measurement results due to different rigidity is avoided.
The working principle of the test bench is as follows:
when the transmission test piece 8 is subjected to the contact patch test: a pair of gears meshing with each other in the transmission tested piece 8 is set as a tested gear pair, and a contact patch test is used to obtain the position and shape of a contact patch when the tested gear pair meshes.
The torque value measured by the torque sensor at the driving end (the end where the driving component is located), the rotating speed measured by the encoder of the driving motor, the torque value measured by the torque sensor at the loading end (the end where the loading component is located) and the rotating speed measured by the encoder of the loading motor can be used as the control reference of the test. Taking the torque value measured by the torque sensor at the driving end (the end where the driving component is located) as an example of a control reference,
before testing, coating pigment on the meshing surface of the tested gear pair; when a contact spot test is carried out, a driving motor and a loading motor are started, the torque and the rotating speed of the driving end are monitored in real time (the rotating speed is zero at the beginning), and when the torque value measured by a torque sensor of the driving end is a set value; and (3) driving the motor to start to rise, monitoring the rotating speed value, and when the rotating speed of the motor reaches a set value, continuously operating the system for a set time.
And after the gear pair is operated for a set time, stopping the operation, opening the tested piece 8 of the transmission, observing the meshing area of the tested gear pair (in the operation process of the system, the pigment at the contact point position of the tested gear pair is ground off), and obtaining the position and the shape of the contact spot of the tested gear pair.
When the transmission test piece 8 is subjected to the transmission error test:
after the contact patch test is finished, if the contact state of the tested gear pair is good (namely the position and the shape of the contact patch of the tested gear pair meet the set requirements), then the transmission error test is carried out on the tested piece 8 of the transmission; if the contact state of the tested gear pair does not meet the set requirement, the contact state of the tested gear pair is adjusted firstly until the contact state is good after the contact spot test is carried out on the tested gear pair, and then the transmission error test is carried out, so that the condition that the transmission error measurement value is not true or inaccurate due to the poor contact state of the gears in the transmission assembly can be avoided.
When a transmission error test is carried out on the tested piece 8 of the transmission, a driving motor and a loading motor are started, and when the rotating speed and the torque of a driving end reach set values, the test is started; when the driving end rotates for a set number of turns to return to the initial position, the position of the loading end at the moment is recorded, and the rotation angle difference between the driving end and the loading end (namely the difference between the rotation angle of the input shaft of the transmission tested by the test piece 8, measured by the angle measuring module in the driving spindle box assembly 6, and the rotation angle of the output shaft of the transmission tested by the test piece 8, measured by the angle measuring module in the loading spindle box assembly 9) is the transmission error of the transmission assembly.
Example 2:
the involute gears with ideal shape and infinite rigidity are meshed, and the rotation angle of the driven gear is kept consistent with the driving gear strictly according to the speed ratio of the involute gears and the driven gear. However, in fact, the driven gear angle will lead or lag its theoretical angle position, i.e., the gear transmission error, at different times due to errors such as gear manufacturing errors, assembly errors, transmission system loading distortions, and gear tooth loading distortions. In order to be closer to the actual working condition of gear operation when carrying out a transmission error test, on the basis of the embodiment 1, an angle dislocation adjusting component is further added on the test bench and is used for testing the transmission error of the transmission tested piece 8 with the dislocation meshing gear pair.
As shown in fig. 3, the angular misalignment adjusting assembly includes: a deflection slide plate 22, a rotating shaft and an angle dislocation adjusting mechanism 23; the axial direction of the output shaft of the driving motor 1 is made to be longitudinal, the rotating shaft and the angle dislocation adjusting mechanism 23 are installed at the two longitudinal ends of the deflection sliding plate 22, wherein the deflection sliding plate 22 is vertically fixed on the table body 17 through the rotating shaft, and the deflection sliding plate 22 can rotate around the rotating shaft on the table body 17 under the action of the angle dislocation adjusting mechanism 23. The drive slide 20 is mounted on the yaw slide 22 by means of transverse guide rails.
When the transmission is dislocated and meshed by a certain pair of gears in the test piece 8, one gear (the gear A) is installed on the table body 17, the other gear (the gear B) is installed on the deflection sliding plate 22, the deflection sliding plate 22 drives the gears installed on the deflection sliding plate to rotate, the included angle between the axes of the two mutually meshed gears is changed, and the dislocated fitting of the gears is achieved.
The angular misalignment adjusting mechanism 23 is a differential screw mechanism, as shown in fig. 4, and includes: the device comprises a trapezoidal lead screw 27, a fixed nut seat 28, a connecting shaft 29, a pin shaft 30 and a movable nut seat 31. Wherein, both axial ends of the trapezoidal screw 27 (i.e. the screw) are connected with the fixed nut seats 28 by screw threads, and the fixed nut seats 28 are fixed on the table body 17 by fasteners (the axial line of the trapezoidal screw 27 is parallel to the surface of the table body 17). The trapezoidal lead screw 27 is in threaded fit with the fixed nut seat 28 to form a screw transmission pair in which the fixed nut seat 28 is fixed, and the trapezoidal lead screw 27 makes rotary motion and makes linear movement along the axis of the trapezoidal lead screw 27. Meanwhile, a movable nut seat 31 is connected between the two fixed nut seats 28 on the trapezoidal lead screw 27 in a threaded manner, the trapezoidal lead screw 27 is in threaded fit with the movable nut seat 31 to form a screw transmission pair in which the trapezoidal lead screw 27 rotates in situ relative to the movable nut seat 31, and the movable nut seat 31 moves linearly along the axis of the trapezoidal lead screw 27. A displacement sensor for measuring the linear displacement of the moving nut seat 31 is arranged on the moving nut seat 31.
One end of the connecting shaft 29 is connected with the movable nut seat 31 through a pin shaft 30 in a pin joint mode, the connecting shaft 39 can rotate around the axis of the pin shaft 30, and the other end of the connecting shaft is connected with the deflection sliding plate 22; the axis of the pin shaft 30 is perpendicular to the surface of the table body 17, and when the movable nut seat 31 moves linearly along the axis of the trapezoidal lead screw 27, the connecting shaft 29 rotates around the axis of the pin shaft 30, so that the connecting shaft 29 swings, and the deflection sliding plate 22 is driven to rotate around the rotating shaft.
The principle of the angle dislocation adjusting assembly is as follows: the axis of the gear A is consistent with the longitudinal direction of the table body 17, the axis direction of the gear A is fixed and unchanged due to the fact that the position of the table body 17 is fixed, the axis of the gear B fixedly installed on the deflection sliding plate 22 is parallel to the axis of the connecting shaft 29 in the differential screw mechanism 2, namely, the axis is consistent with the longitudinal direction of the deflection sliding plate 22, the deflection sliding plate 22 has deflection motion around a rotating shaft relative to the driving sliding plate 20, the deflection sliding plate 22 drives the gear B to rotate, and therefore the included angle between the axes of the two gears is adjusted, and dislocation meshing simulation of the gear pair is achieved.
The differential screw mechanism can realize the combination of various moving distances by utilizing two screw transmission pairs on the differential screw mechanism and changing the parameters of the trapezoidal lead screw 27. According to the product relationship of the deflection angle and the radius of gyration, the required moving distance of the trapezoidal lead screw 27 in the differential screw mechanism can be calculated by the known gear meshing dislocation deflection angle, and the distance is monitored by a displacement sensor so as to realize the accurate simulation of dislocation meshing.
In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A contact patch and transmission error comprehensive test rack for derailleur assembly, characterized by, includes: the loading device comprises a table body (17), and a driving assembly and a loading assembly which are arranged on the table body (17);
the drive assembly includes: the device comprises a driving motor (1), a driving end speed reducer (2) and a driving spindle box assembly (6); the output end of the driving motor (1) is connected with one end of a driving spindle in the driving spindle box assembly (6) through the driving end speed reducer (2), and a driving end torque sensor (4) is arranged on a shaft system between the driving end speed reducer (2) and the driving spindle box assembly (6); the other end of a driving main shaft in the driving main shaft box assembly (6) is connected with an input shaft of a tested piece (8) of the transmission; an angle measuring module is arranged on the driving main shaft;
the loading assembly comprises: a loading motor (14), a loading end speed reducer (13) and a loading main shaft box assembly (9); the output end of the loading motor (14) is connected with one end of a loading spindle in a loading spindle box assembly (9) through a loading end speed reducer (13); a loading end torque sensor (11) is arranged on a shaft system between the loading end speed reducer (13) and the loading main shaft box assembly (9); the other end of a loading main shaft in the loading main shaft box assembly (9) is connected with an output shaft of a tested piece (8) of the transmission, and an angle measuring module is installed on the loading main shaft.
2. The integrated contact patch and transmission error test rig for a transmission assembly of claim 1, further comprising: a driving sliding plate (20), wherein the driving assembly is arranged on the table body (17) through the driving sliding plate (20); the axial direction of the driving component is longitudinal, and the direction vertical to the longitudinal direction on the supporting surface of the table body (17) is transverse; the driving sliding plate (20) is arranged on the table body (17) through a transverse guide rail, and the driving sliding plate (20) can move transversely on the table body (17) along the transverse guide rail.
3. The integrated contact patch and transmission error test bench for a transmission assembly of claim 1 or 2, further comprising: a loading slide (16); the loading assembly is arranged on the table body (17) through the loading sliding plate (16); the axial direction of the driving component is longitudinal, and the direction vertical to the longitudinal direction on the supporting surface of the table body (17) is transverse; the loading slide plate (16) is arranged on the table body (17) through a longitudinal guide rail, and the loading slide plate (16) can move longitudinally on the table body (17) along the longitudinal guide rail.
4. The integrated contact patch and transmission error test rig for a transmission assembly of claim 2, further comprising: an angle dislocation adjusting component; the angle dislocation adjusting part includes: a deflection sliding plate (22), a rotating shaft and an angle dislocation adjusting mechanism (23); the driving sliding plate (20) is arranged on a deflection sliding plate (22) through a transverse guide rail, the deflection sliding plate (22) is vertically fixed on the table body (17) through a rotating shaft, and the deflection sliding plate (22) can rotate around the rotating shaft on the table body (17) under the action of the angle dislocation adjusting mechanism (23);
the two gears which are meshed in a staggered mode are respectively a gear A and a gear B, wherein the gear A is installed on the table body (17), the gear B is installed on the deflection sliding plate (22), and the deflection sliding plate (22) drives the gear B to rotate so as to change an included angle between the axes of the gear A and the gear B.
5. The integrated test bench for contact patch and transmission error of transmission assembly according to claim 4, wherein said angular misalignment adjusting mechanism (23) is a differential screw mechanism;
the differential screw mechanism includes: the device comprises a trapezoidal screw rod (27), a fixed nut seat (28), a connecting shaft (29), a pin shaft (30) and a movable nut seat (31); both axial ends of the trapezoidal lead screw (27) are in threaded connection with fixed nut seats (28), the fixed nut seats (28) are fixed on the table body (17), and the trapezoidal lead screw (27) is in threaded fit with the fixed nut seats (28) to form a screw transmission pair which is fixed by the fixed nut seats (28), rotates around the trapezoidal lead screw (27) and moves linearly along the axis of the trapezoidal lead screw (27); a movable nut seat (31) is connected between the two fixed nut seats (28) on the trapezoidal lead screw (27) in a threaded manner, the trapezoidal lead screw (27) is in threaded fit with the movable nut seat (31) to form a spiral transmission pair, the trapezoidal lead screw (27) rotates in situ relative to the movable nut seat (31), and the movable nut seat (31) moves linearly along the axis of the trapezoidal lead screw (27);
one end of the connecting shaft (29) is connected with the movable nut seat (31) through a pin shaft (30), the connecting shaft (29) can rotate around the axis of the pin shaft (30), and the other end of the connecting shaft is connected with the deflection sliding plate (22); when the movable nut seat (31) moves linearly along the axis of the trapezoidal screw rod (27), the connecting shaft (29) drives the deflection sliding plate (22) to rotate around the rotating shaft.
6. The integrated test bench for contact patch and transmission error of transmission assembly according to claim 1, characterized in that said driving headstock assembly (6) comprises: a drive spindle (24) and a drive spindle case (25); the driving main shaft (24) is positioned in the driving main shaft box body (25), and two ends of the driving main shaft (24) extend out of the driving main shaft box body (25) and are supported on the driving main shaft box body (25) through bearings;
the structure of the loading spindle box assembly (9) is the same as that of the driving spindle box assembly (6), and the loading spindle box assembly comprises: a loading spindle and a loading spindle box.
7. The integrated contact patch and transmission error test rig for a transmission assembly of claim 1, wherein: one end of the driving end torque sensor (4) is connected with the driving end speed reducer (2) through a flange, the other end of the driving end torque sensor is connected with one end of a driving end coupler (5) through a flange, and the other end of the driving end coupler (5) is connected with a driving main shaft box assembly (6);
one end of the loading end torque sensor (11) is connected with the loading end speed reducer (13) through a flange, the other end of the loading end torque sensor is connected with one end of the loading end coupler (10) through a flange, and the other end of the loading end coupler (10) is connected with the loading spindle box assembly (9).
8. The integrated contact patch and transmission error test rig for a transmission assembly of claim 7, wherein: and the driving end coupler (5) and the loading end coupler (10) both adopt double-diaphragm elastic couplers.
9. The integrated test stand for contact patch and transmission error of a transmission assembly of claim 1 or 2, wherein: the driving motor (1) and the loading motor (14) both adopt motors with zero-speed loaded starting functions.
10. The integrated test stand for contact patch and transmission error of a transmission assembly of claim 1 or 2, wherein: before the transmission tested piece (8) of the transmission is subjected to a transmission error test by adopting the comprehensive test bench, a contact spot test is firstly carried out, and the transmission tested piece (8) of the transmission is subjected to the transmission error test after the position and the shape of the contact spot meet set requirements only after the tested gear pair in the transmission tested piece (8) is subjected to the contact spot test.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921099572.4U CN210464927U (en) | 2019-07-15 | 2019-07-15 | Comprehensive test rack for contact spots and transmission errors of transmission assembly |
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| CN201921099572.4U CN210464927U (en) | 2019-07-15 | 2019-07-15 | Comprehensive test rack for contact spots and transmission errors of transmission assembly |
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| CN210464927U true CN210464927U (en) | 2020-05-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398360A (en) * | 2019-07-15 | 2019-11-01 | 中机生产力促进中心 | Contact (area) pattern and transmission error integration test rack for transmission assembly |
| CN117782580A (en) * | 2024-01-16 | 2024-03-29 | 深圳市北测检测技术有限公司 | Defect detection method and system for automobile parts |
-
2019
- 2019-07-15 CN CN201921099572.4U patent/CN210464927U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398360A (en) * | 2019-07-15 | 2019-11-01 | 中机生产力促进中心 | Contact (area) pattern and transmission error integration test rack for transmission assembly |
| CN117782580A (en) * | 2024-01-16 | 2024-03-29 | 深圳市北测检测技术有限公司 | Defect detection method and system for automobile parts |
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