CN218724995U - Transmission shaft dynamic balance detection device - Google Patents
Transmission shaft dynamic balance detection device Download PDFInfo
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- CN218724995U CN218724995U CN202222583720.8U CN202222583720U CN218724995U CN 218724995 U CN218724995 U CN 218724995U CN 202222583720 U CN202222583720 U CN 202222583720U CN 218724995 U CN218724995 U CN 218724995U
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Abstract
The utility model belongs to the technical field of dynamic balance detection and specifically relates to a transmission shaft dynamic balance detection device is related to, it includes the base, be connected with supporting seat and transmission seat on the base, the supporting seat is provided with two, two the supporting seat is followed the length direction of base is arranged, the transmission seat is located two between the supporting seat, connect drive assembly on the transmission seat, be connected with the support piece that detects the piece and be used for supporting the transmission shaft on the supporting seat, support piece and transmission shaft transmission cooperation, drive assembly take-up pulley, belt and drive take-up pulley pivoted driving source, the take-up pulley passes through adjusting part sliding connection and is in on the transmission seat, the take-up pulley with transmission seat normal running fit, the belt cover is established on take-up pulley and transmission shaft, and this application has the effect that improves dynamic balance detection efficiency.
Description
Technical Field
The application relates to the field of dynamic balance detection, in particular to a transmission shaft dynamic balance detection device.
Background
The transmission shaft is an important part for transmitting power in an automobile transmission system, and the transmission shaft, a gearbox and a drive axle are used for transmitting the power of an engine to wheels so that an automobile generates driving force. When the transmission shaft rotates around the axis of the transmission shaft, centrifugal force is generated due to uneven mass distribution relative to the axis, and the centrifugal force generated by the unbalance acts on a rotor bearing to cause vibration, generate noise and accelerate bearing abrasion, so that the performance and the service life of a product are seriously influenced, and therefore, the transmission shaft needs to be subjected to dynamic balance detection.
Chinese patent with publication number CN215726546U a roll dynamic balance detection device, the on-line screen storage device comprises a base, the upper end fixed surface of base installs the rack, the meshing is connected with detection device in the middle of the upper end surface of rack, the upper end left and right sides of rack all meshes and is connected with adjusting device, the equal fixed mounting in upper end surface of adjusting device has the bottom plate, the upper end of bottom plate is equipped with the upper fixed plate through bolted connection, it is connected with the roll to rotate between upper fixed plate and the bottom plate, adjusting device includes the regulating box, first motor, the transmission shaft, the driving gear, electric telescopic handle and backup pad. The utility model discloses a second motor drives the detection axle and annular pressure sensor is rotatory for the relative rotation is done to the winding drive roll, thereby carries out dynamic balance and detects, and first motor passes through the epaxial driving gear of transmission and the rack toothing is connected, conveniently promotes the detection case and removes, thereby detects comprehensively to the roll surface, has improved the precision that detects and has reduced the error.
When using above-mentioned technique to detect, the winding cover is established on the transmission shaft and the work piece that waits to detect, the winding tensioning, when rotating the transmission shaft, the winding just can drive the work piece through the winding and rotate and detect, because the length of winding is fixed, if need detect the work piece that the diameter is different, the winding cover is established on transmission shaft and work piece, the condition that the tensioning is excessive or lax probably appears in the winding, need to change the winding that is fit for interval between work piece and the transmission shaft and detect to the efficiency of detection has been reduced.
SUMMERY OF THE UTILITY MODEL
In order to improve dynamic balance detection efficiency, the application provides a transmission shaft dynamic balance detection device.
The application provides a transmission shaft dynamic balance detection device adopts following technical scheme:
the utility model provides a transmission shaft dynamic balance detection device, includes the base, be connected with supporting seat and transmission seat on the base, the supporting seat is provided with two, two the supporting seat is followed the length direction of base is arranged, the transmission seat is located two between the supporting seat, connect drive assembly on the transmission seat, be connected with the support piece that detects the piece and be used for supporting the transmission shaft on the supporting seat, support piece and transmission shaft transmission cooperation, drive assembly take-up pulley, belt and drive take-up pulley pivoted driving source, the take-up pulley passes through adjusting part sliding connection on the transmission seat, the take-up pulley with transmission seat normal running fit, the belt cover is established on take-up pulley and transmission shaft.
Through adopting above-mentioned technical scheme, pass the belt with the transmission shaft, erect the transmission shaft on the supporting seat through support piece, establish the belt cover at take-up pulley and transmission shaft, then remove the take-up pulley through adjusting part, make the belt tensioning to suitable degree, rotate the take-up pulley through the driving source, friction between belt and the transmission shaft drives the transmission shaft and rotates, it detects to detect the transmission shaft dynamic balance, adjust the distance between take-up pulley and the transmission shaft, thereby adjust the tensioning degree of belt between transmission shaft and take-up pulley, be convenient for carry out dynamic balance to the transmission shaft of different diameters and detect, dynamic balance detection efficiency has been improved.
Optionally, the adjusting assembly includes an adjusting bolt and a connecting shaft, the tensioning wheel is rotatably connected to the connecting shaft, one end of the connecting shaft, which is far away from the tensioning wheel, is connected to the abutting block, the transmission seat is provided with an adjusting opening, the abutting block is connected to the adjusting bolt through a thread, the adjusting bolt penetrates through the adjusting opening, and the head of the adjusting bolt, the abutting block and the side wall of the transmission seat opposite to the abutting block abut tightly.
Through adopting above-mentioned technical scheme, remove the take-up pulley, the connecting axle removes in adjusting the mouth, when the take-up pulley removed suitable position, rotates the adjusting bolt, adjusting bolt and support a threaded connection, until the head of adjusting bolt supports tightly with the driving seat, support a piece and drive seat and support tightly to the position of fixed take-up pulley.
Optionally, the transmission assembly further includes a driving wheel, the driving wheel is rotatably connected to the transmission seat, the driving source is connected to the driving wheel, and the belt sleeve is arranged on the driving wheel, the tensioning wheel and the transmission shaft.
Through adopting above-mentioned technical scheme, drive the take-up pulley through the transmission of drive wheel and belt and rotate, compare in the mobilizable take-up pulley of direct drive, drive and driving seat position relatively fixed.
Optionally, the supporting pieces are two supporting wheels, the two supporting wheels are arranged in parallel in the direction perpendicular to the length direction of the base, and the supporting wheels are rotatably connected to the supporting seat.
Through adopting above-mentioned technical scheme, erect the transmission shaft between two supporting wheels, when the transmission shaft rotated under the drive of belt, the transmission shaft drove the supporting wheel and rotates, and the setting of supporting wheel has reduced the frictional force between transmission shaft and the supporting wheel.
Optionally, the supporting wheel is connected to the supporting seat through a mounting plate in a sliding manner, the mounting plate is connected to the supporting seat in a sliding manner along the vertical direction, and the supporting wheel is connected to the mounting plate in a rotating manner.
Through adopting above-mentioned technical scheme, remove the mounting panel along vertical direction, adjust the height that the transmission shaft is located the supporting wheel to in being convenient for adjust vertical direction, the position between transmission shaft and take-up pulley, the drive wheel, thereby be convenient for adjust the tensioning degree of belt between transmission shaft and take-up pulley.
Optionally, be provided with sliding opening and guide way on the supporting seat, the guide way runs through the supporting seat, the guide way sets up along vertical direction, the guide way is located sliding opening's both sides, be connected with the guide block on the mounting panel, the guide block runs through the guide way and with the guide way is along vertical direction sliding fit, it is connected with the regulating block to rotate on the lateral wall that sliding opening is close to ground, be provided with the screw hole on the regulating block, the axial of screw hole sets up along vertical direction, be provided with the through-hole on the supporting seat, the through-hole with the screw hole sets up relatively, the mounting panel is connected with the threaded rod on the lateral wall on ground, the threaded rod passes through the screw hole runs through the regulating block, the threaded rod is inserted and is established in the through-hole.
Through adopting above-mentioned technical scheme, rotate the regulating block, the threaded rod removes along vertical direction to drive the mounting panel and remove along vertical direction.
Optionally, the guide block is connected to the mounting plate through a limit bolt, and the limit bolt penetrates through the mounting plate and is in threaded connection with the guide block.
Through adopting above-mentioned technical scheme, after the mounting panel removed suitable position, rotate the stop cock, the head of stop cock removes towards the guide block, supports tightly until stop cock, guide block and the relative lateral wall of supporting seat to further fixed mounting panel and the relative position between the supporting seat.
Optionally, an avoiding groove is formed in the mounting plate and located between the supporting wheels, and the avoiding groove is arc-shaped.
Through adopting above-mentioned technical scheme, the tip of transmission shaft is provided with the spindle nose usually, dodges the groove and is used for stepping down for the epaxial spindle nose of transmission, when reducing the transmission shaft and rotating, the condition emergence of collision appears between spindle nose and the mounting panel.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the transmission shaft penetrates through the belt, the transmission shaft is erected on the supporting seat through the supporting piece, the belt is sleeved on the tensioning wheel and the transmission shaft, then the tensioning wheel is moved through the adjusting assembly, the belt is tensioned to a proper degree, the tensioning wheel is rotated through the driving source, the transmission shaft is driven to rotate through friction between the belt and the transmission shaft, the detection piece carries out dynamic balance detection on the transmission shaft, and the distance between the tensioning wheel and the transmission shaft is adjusted, so that the tensioning degree of the belt between the transmission shaft and the tensioning wheel is adjusted, the dynamic balance detection on the transmission shafts with different diameters is facilitated, and the dynamic balance detection efficiency is improved;
2. the tensioning wheel is moved, the connecting shaft moves in the adjusting opening, when the tensioning wheel moves to a proper position, the adjusting bolt is rotated and is in threaded connection with the abutting block until the head of the adjusting bolt abuts against the transmission seat, and the abutting block abuts against the transmission seat, so that the position of the tensioning wheel is fixed;
3. the mounting plate is moved along the vertical direction, and the height of the transmission shaft on the supporting wheel is adjusted, so that the position between the transmission shaft and the tensioning wheel and between the transmission shaft and the driving wheel in the vertical direction can be conveniently adjusted, and the tensioning degree of the belt between the transmission shaft and the tensioning wheel can be conveniently adjusted.
Drawings
FIG. 1 is a schematic view of an overall structure for embodying a dynamic balance detecting apparatus of a transmission shaft;
FIG. 2 is a schematic diagram for showing the positional relationship between the transmission base and the slider;
FIG. 3 is an enlarged view of a portion A for showing the positional relationship between the guide block and the support plate in FIG. 1;
FIG. 4 is an enlarged view of the portion B for showing the positional relationship between the adjusting block and the threaded rod in FIG. 1;
fig. 5 is a schematic diagram for embodying the positional relationship between the adjustment pin and the riser.
Description of reference numerals:
1. a base; 2. mounting grooves; 3. a chute; 4. a supporting seat; 5. a transmission seat; 6. a chain; 7. a motor; 8. a slider; 9. positioning bolts; 10. a support plate; 11. a sliding port; 12. a guide groove; 13. mounting a plate; 14. a support wheel; 15. an avoidance groove; 16. a guide block; 17. a limit bolt; 18. opening the gap; 19. an adjusting block; 20. a threaded rod; 21. supporting a block; 22. a photosensor; 23. a vertical plate; 24. a V-shaped groove; 25. an adjustment port; 26. connecting grooves; 27. adjusting the bolt; 28. a tension wheel; 29. a drive wheel; 30. a belt; 31. a driver; 32. and (6) butting against blocks.
Detailed Description
The embodiment of the application discloses transmission shaft dynamic balance detection device.
Referring to fig. 1, a transmission shaft dynamic balance detection device includes a base 1, and a mounting groove 2 and a sliding groove 3 are arranged on the base 1 along the length direction thereof, and the sliding groove 3 is located on two sides of the mounting groove 2.
Referring to fig. 1, a supporting seat 4 and a driving seat 5 are slidably connected to the base 1 along the length direction thereof, two supporting seats 4 are provided, and the driving seat 5 is located between the two supporting seats 4.
Referring to fig. 1 and 2, a transmission belt is connected to the base 1, the transmission belt includes a chain 6 and two chain wheels, the chain wheels are rotatably connected to the mounting groove 2 and located at two ends of the mounting groove 2 along the length direction of the base 1, the chain 6 is sleeved on the chain wheels, and the base 1 is connected with a motor 7 for driving the chain wheels to rotate. The bottom of supporting seat 4 and transmission 5 all is connected with chain 6 through the locating pin, the bottom of supporting seat 4 and transmission 5 is connected with slider 8, slider 8's cross-section sets up to the T shape, the cross-section of spout 3 sets up to the T shape, slider 8 is located spout 3 and follows base 1's length direction sliding fit with spout 3, equal threaded connection has the gim peg 9 on base 1's the lateral wall is kept away from to supporting seat 4 and transmission 5, gim peg 9 runs through supporting seat 4, transmission 5 and with slider 8 threaded connection.
Starter motor 7, motor 7 drives the sprocket and rotates, 6 length direction transmissions along base 1 of chain, 6 chain drive supporting seat 4, driving seat 5 removes along base 1's length direction, slider 8 removes along spout 3, when supporting seat 4, driving seat 5 removes behind the suitable position, rotation locating bolt 9, supporting seat 4, driving seat 5 and slider 8 are close to the removal each other, head and supporting seat 4 up to locating bolt 9, driving seat 5 keeps away from the lateral wall of base 1 and supports tightly, supporting seat 4, driving seat 5 supports tightly with base 1, the lateral wall of keeping away from ground of slider 8 supports tightly with the lateral wall of spout 3 orientation ground, thereby fixed support seat 4, driving seat 5 and base 1's relative position.
Referring to fig. 1, fig. 3 and fig. 4, a supporting plate 10 is connected to a supporting seat 4, the supporting plate 10 is vertically disposed, a sliding port 11 is disposed on the supporting plate 10, a guide groove 12 is disposed on the supporting plate 10, the guide groove 12 penetrates through the supporting plate 10, the guide groove 12 is disposed in the vertical direction, the guide groove 12 is disposed on two sides of the sliding port 11, a mounting plate 13 is slidably connected to the supporting plate 10 in the vertical direction, a supporting wheel 14 is rotatably connected to the mounting plate 13, the supporting wheel 14 is provided with two supporting wheels, an axis of the supporting wheel 14 is located in the same horizontal plane, the supporting wheel 14 is parallel to the length direction of the base 1, the end portion of the supporting wheel 14 far away from the ground exceeds the side wall of the mounting plate 13 far away from the ground, an avoiding groove 15 is disposed on the side wall of the mounting plate 13 far away from the base 1, the avoiding groove 15 is disposed between the two supporting wheels 14, the avoiding groove 15 is disposed in an arc shape, and the avoiding groove 15 is used for avoiding the spindle head on the transmission shaft.
Referring to fig. 1, 3 and 4, a guide block 16 is connected to the mounting plate 13 through a limit bolt 17, the limit bolt 17 penetrates through the mounting plate 13 and is in threaded connection with the guide block 16, the guide block 16 is cylindrical, a notch 18 is formed in a side wall of the guide block 16 opposite to the guide block, the guide block 16 penetrates through the guide groove 12, a bottom surface of the notch 18 abuts against a side wall of the guide groove 12, and a side wall of the notch 18 opposite to the mounting plate 13 abuts against a side wall of the support plate 10. The side wall of the sliding opening 11 close to the ground is rotatably connected with an adjusting block 19, the adjusting block 19 is provided with a threaded hole, the axial direction of the threaded hole is arranged along the vertical direction, the supporting plate 10 is provided with a through hole, the through hole and the threaded hole are oppositely arranged, and the side wall of the adjusting block 19 is arranged in a concave-convex mode, so that the friction force on the surface of the side wall of the adjusting block 19 is increased, and the adjusting block 19 is convenient to rotate; the side wall of the mounting plate 13 facing the ground is connected with a threaded rod 20 through a support block 21, the threaded rod 20 penetrates through the adjusting block 19 through a threaded hole, and the threaded rod 20 is inserted into the through hole. Be connected with the detection piece through the fixation clamp in the backup pad 10, the fixation clamp articulates in backup pad 10, and the detection piece is photoelectric sensor 22, and photoelectric sensor 22's inductive head sets up towards the transmission shaft.
The adjusting block 19 is rotated, the threaded rod 20 moves along the axial direction of the threaded hole, the threaded rod 20 drives the mounting plate 13 to move along the vertical direction, and the guide block 16 moves along the guide groove 12, so that the height of the supporting wheel 14 can be adjusted conveniently.
Referring to fig. 1 and 2, be connected with riser 23 on the driving seat 5, be connected with the transmission assembly on riser 23, the transmission assembly includes drive shaft, drive wheel 29, take-up pulley 28 and belt 30, and the drive shaft rotates to be connected on riser 23, is connected with the driving source on riser 23, and the driving source is driving machine 31, and the output shaft of driving machine 31 runs through riser 23 and is connected with the drive shaft, and drive wheel 29 coaxial coupling is in the drive shaft.
Referring to fig. 2 and 5, a V-shaped groove 24 is formed in a side wall of the vertical plate 23 far away from the base 1, two adjusting openings 25 are formed in the vertical plate 23, the two adjusting openings 25 are symmetrically arranged with an axis of the base 1 as a center, the adjusting openings 25 are obliquely arranged far away from an axis of the mounting plate 13, and the tensioning wheel 28 is detachably connected to the vertical plate 23 through an adjusting component. The adjusting assembly comprises an adjusting bolt 27 and a connecting shaft, the tensioning wheel 28 is rotatably connected to the connecting shaft, one end, away from the tensioning wheel 28, of the connecting shaft is connected with a supporting block 32, a threaded hole is formed in one end, away from the connecting shaft, of the supporting block 32, the connecting shaft penetrates through the adjusting hole 25 and is in sliding fit with the adjusting hole 25, and the adjusting bolt 27 penetrates through the adjusting hole 25 and is in threaded connection with the supporting block 32 through the threaded hole.
The application principle of the transmission shaft dynamic balance detection device is as follows:
a transmission shaft penetrates through a belt 30, the transmission shaft is erected on the adjacent supporting wheel 14, the belt 30 is sleeved on the tensioning wheel 28 and the transmission shaft, then the tensioning wheel 28 is moved, the connecting shaft is moved in the adjusting opening 25 until the belt 30 is tensioned to a proper degree, the adjusting bolt 27 is rotated, the adjusting bolt 27 is in threaded connection with the abutting block 32, and the head of the adjusting bolt 27 and the side wall of the abutting block 32 opposite to the vertical plate 23 are abutted tightly; or the adjusting block 19 can be rotated to adjust the height of the mounting plate 13 in the vertical direction, so that the height of the transmission shaft is adjusted, the distance between the transmission shaft and the tensioning wheel 28 and the distance between the transmission shaft and the driving wheel 29 are adjusted, the tensioning degree of the belt 30 is adjusted, dynamic balance detection of transmission shafts with different diameters is facilitated, and the dynamic balance detection efficiency is improved.
Before testing, a non-reflective mark is made at the position on the transmission shaft where the reflection is better, and the probe of the photoelectric sensor 22 is aligned with the mark. The driving wheel 29 is driven by the driver 31 to rotate, the tension wheel 28 rotates under the driving of the belt 30, the transmission shaft is driven to rotate by the friction between the belt 30 and the transmission shaft, and the photoelectric sensor 22 performs dynamic balance detection on the transmission shaft.
Claims (8)
1. The utility model provides a transmission shaft dynamic balance detection device which characterized in that: including base (1), be connected with supporting seat (4) and transmission seat (5) on base (1), supporting seat (4) are provided with two, two supporting seat (4) are followed the length direction of base (1) arranges, transmission seat (5) are located two between supporting seat (4), connect drive assembly on transmission seat (5), be connected with the detection piece on supporting seat (4) and be used for supporting the support piece of transmission shaft, support piece and transmission shaft transmission cooperation, drive assembly take-up pulley (28), belt (30) and drive take-up pulley (28) pivoted driving source, take-up pulley (28) pass through adjusting part sliding connection and be in on transmission seat (5), take-up pulley (28) with transmission seat (5) normal running fit, belt (30) cover is established on take-up pulley (28) and the transmission shaft.
2. The dynamic balance detecting device of a transmission shaft according to claim 1, characterized in that: the adjusting component comprises an adjusting bolt (27) and a connecting shaft, the tensioning wheel (28) is rotatably connected to the connecting shaft, one end, far away from the tensioning wheel (28), of the connecting shaft is connected with a supporting block (32), an adjusting opening (25) is formed in the transmission seat (5), the supporting block (32) is connected with the adjusting bolt (27) through threads, the adjusting bolt (27) penetrates through the adjusting opening (25), and the head of the adjusting bolt (27), the supporting block (32) and the opposite side wall of the transmission seat (5) are supported tightly.
3. The dynamic balance detecting device of a transmission shaft according to claim 1, characterized in that: the transmission assembly further comprises a driving wheel (29), the driving wheel (29) is rotatably connected to the transmission seat (5), the driving source is connected to the driving wheel (29), and the belt (30) is sleeved on the driving wheel (29), the tensioning wheel (28) and the transmission shaft.
4. The dynamic balance detecting device of a transmission shaft according to claim 1, characterized in that: the supporting piece is supporting wheels (14), the number of the supporting wheels (14) is two, the two supporting wheels (14) are arranged in parallel in the length direction perpendicular to the base (1), and the supporting wheels (14) are rotatably connected to the supporting seat (4).
5. The dynamic balance detecting device of the transmission shaft according to claim 4, characterized in that: supporting wheel (14) pass through mounting panel (13) sliding connection in on supporting seat (4), mounting panel (13) with supporting seat (4) are along vertical direction sliding connection, supporting wheel (14) with mounting panel (13) rotate and are connected.
6. The dynamic balance detecting device of a transmission shaft according to claim 5, characterized in that: be provided with on supporting seat (4) and slide opening (11) and guide way (12), guide way (12) run through supporting seat (4), guide way (12) set up along vertical direction, guide way (12) are located the both sides of slide opening (11), be connected with guide block (16) on mounting panel (13), guide block (16) run through guide way (12) and with guide way (12) are along vertical direction sliding fit, it is connected with regulating block (19) to rotate on slide opening (11) are close to the lateral wall on ground, be provided with the screw hole on regulating block (19), the axial of screw hole sets up along vertical direction, be provided with the through-hole on supporting seat (4), the through-hole with the screw hole sets up relatively, be connected with threaded rod (20) on mounting panel (13) the lateral wall towards ground, threaded rod (20) pass through the screw hole runs through regulating block (19), threaded rod (20) are inserted and are established in the through-hole.
7. The dynamic balance detecting device of the transmission shaft according to claim 6, characterized in that: the guide block (16) is connected on the mounting plate (13) through a limiting bolt (17), and the limiting bolt (17) penetrates through the mounting plate (13) and is in threaded connection with the guide block (16).
8. The dynamic balance detecting device of a transmission shaft according to claim 5, characterized in that: be provided with on mounting panel (13) and dodge groove (15), dodge groove (15) and be located between supporting wheel (14), dodge groove (15) and set up to the arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222583720.8U CN218724995U (en) | 2022-09-28 | 2022-09-28 | Transmission shaft dynamic balance detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222583720.8U CN218724995U (en) | 2022-09-28 | 2022-09-28 | Transmission shaft dynamic balance detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218724995U true CN218724995U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222583720.8U Active CN218724995U (en) | 2022-09-28 | 2022-09-28 | Transmission shaft dynamic balance detection device |
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| CN (1) | CN218724995U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117782432A (en) * | 2024-02-23 | 2024-03-29 | 润华汽车控股有限公司 | Dynamic balance comprehensive test system for automobile front axle assembly |
| CN117782432B (en) * | 2024-02-23 | 2024-05-24 | 润华汽车控股有限公司 | Dynamic balance comprehensive test system for automobile front axle assembly |
-
2022
- 2022-09-28 CN CN202222583720.8U patent/CN218724995U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117782432A (en) * | 2024-02-23 | 2024-03-29 | 润华汽车控股有限公司 | Dynamic balance comprehensive test system for automobile front axle assembly |
| CN117782432B (en) * | 2024-02-23 | 2024-05-24 | 润华汽车控股有限公司 | Dynamic balance comprehensive test system for automobile front axle assembly |
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