CN219694715U - Automobile bushing torsion endurance experiment platform and detection system thereof - Google Patents

Abstract

The utility model discloses an automobile bushing torsion endurance experiment platform and a system thereof: the support assembly comprises a main board, a clamping board layer arranged at the upper end of the main board, a fixing frame arranged on the clamping board layer and an adjusting part arranged at the upper end of the clamping board layer; the connecting component is arranged at the side part of the adjusting component and comprises a lining steel sleeve arranged on the fixing frame, torsion clamps arranged at two sides of the lining steel sleeve close to the fixing frame, a fixed force driving oil cylinder arranged at one side of the fixing frame and a thrust component arranged at the side part of the lining steel sleeve; the position of the fixed force driving oil cylinder and the position of the third supporting plate are adjustable, the gap between the torsion clamp and the bushing clamp are adjustable, so that the device meets the multi-model bushing test, the adjusting part can be detachably connected, the device can be conveniently installed, detached and carried, the manual operation is replaced by installing the torsion oil cylinder and the push-pull force oil cylinder, the arrangement of the torsion sensor detects the measurement data of the bushing, and the accuracy of the experiment is improved.

Description

Automobile bushing torsion endurance experiment platform and detection system thereof

Technical Field

The utility model relates to the technical field of automobile bushing detection, in particular to an automobile bushing torsion endurance experiment platform and a detection system thereof.

Background

The automobile lining has become an indispensable important part on the automobile due to the advantages of good vibration isolation, good elasticity, small attenuation and the like, and the durability and the strength of the automobile lining influence the stability and the smoothness of the automobile; the test method can verify whether the durability and strength of the bearing pressure, tensile force and axial torsion force of the automobile bushing meet the standard requirements, the current automobile bushing test operation is complex, the operation experiment is carried out manually, when the bushing model is not matched with the gap between the clamp on the experiment table frame, the sample is damaged, hidden danger is easily caused, the torsion device is fixed with the clamp, the operation table model is extremely difficult to overhaul when faults occur, the gap between the clamps cannot be adjusted, the bushing torsion experiment of all models cannot be met, and the change value of torsion moment and push-pull force of each time cannot be recorded by manual operation measurement, so that the accuracy of the experiment is affected.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.

The utility model is provided in view of the problem that the clamp clearance of the conventional automobile bushing torsion endurance test platform cannot be adjusted and cannot be suitable for bushings of various types.

Therefore, the utility model aims to provide an automobile bushing torsion endurance test platform.

In order to solve the technical problems, the utility model provides the following technical scheme: the support assembly comprises a main board, a clamping board layer arranged at the upper end of the main board, a fixing frame arranged on the clamping board layer and an adjusting part arranged at the upper end of the clamping board layer; and the connecting component is arranged on the side part of the adjusting part and comprises a lining steel sleeve arranged on the fixing frame, torsion clamps arranged on two sides of the lining steel sleeve close to the fixing frame, a fixed force driving oil cylinder arranged on one side of the fixing frame and a thrust part arranged on the side part of the lining steel sleeve.

As a preferable scheme of the torsion endurance test platform for the automobile bushing, the torsion endurance test platform comprises the following components: the splint layer can be dismantled and connect on the mainboard, splint layer comprises a plurality of dismantlement board, every dismantle and leave the clearance between the board.

As a preferable scheme of the torsion endurance test platform for the automobile bushing, the torsion endurance test platform comprises the following components: the fixing frames are symmetrically arranged on two sides of one end, far away from the main board, of the clamping plate layer, and a rotating shaft through hole is formed in the center of each fixing frame.

As a preferable scheme of the torsion endurance test platform for the automobile bushing, the torsion endurance test platform comprises the following components: the adjusting part comprises a first supporting plate arranged on the clamping plate layer, a second supporting plate arranged on the side part of the first supporting plate and a third supporting plate arranged on the side part of the bushing steel sleeve, wherein the first supporting plate is detachably connected to the upper end of the clamping plate layer and fixedly connected with the fixed force driving oil cylinder, the second supporting plate is arranged on one side, close to the fixed force driving oil cylinder, of the middle part of the clamping plate layer, and the third supporting plate is arranged on one side, far away from the bushing steel sleeve, of the thrust part.

As a preferable scheme of the torsion endurance test platform for the automobile bushing, the torsion endurance test platform comprises the following components: the bushing steel sleeve is internally provided with a second space, a bushing can be arranged in the second space, two sides of the bushing steel sleeve are provided with torsion connecting rods, the torsion connecting rods and the rotating shaft through holes are coaxial, and one side of each torsion connecting rod, which is far away from the bushing steel sleeve, is provided with a flange plate.

As a preferable scheme of the torsion endurance test platform for the automobile bushing, the torsion endurance test platform comprises the following components: the torsion clamp is rotationally connected to the through hole of the rotating shaft, the torsion clamp is connected with the torsion connecting rod through the flange plate, and one end, far away from the torsion connecting rod, of the torsion clamp is rotationally connected with the constant force driving oil cylinder.

As a preferable scheme of the torsion endurance test platform for the automobile bushing, the torsion endurance test platform comprises the following components: the thrust part comprises a lining clamp arranged on the side part of the lining steel sleeve, a connecting rod arranged on one side of the lining clamp away from the lining steel sleeve, a linear bearing arranged on one side of the connecting rod away from the lining clamp, and a lock-shaped clamp arranged on one end of the linear bearing away from the connecting rod.

As a preferable scheme of the torsion endurance test platform for the automobile bushing, the torsion endurance test platform comprises the following components: the linear bearing is provided with the second anchor clamps near second backup pad one side, second anchor clamps one end is connected with linear bearing can be dismantled, and the other end is connected with the second backup pad can be dismantled.

The utility model has the beneficial effects that: through the position adjustable of fixed force driving cylinder and third backup pad, torsion anchor clamps and bush between the anchor clamps clearance adjustable to realize that the device satisfies the bush test of many models, adjusting part can dismantle the connection also can realize the convenient installation of device and dismantle and carry.

The present utility model has been made in view of the above-mentioned existing problem that manual test operation cannot be accurately measured.

Accordingly, the utility model aims to provide an automobile bushing torsion endurance test detection system.

In order to solve the technical problems, the utility model provides the following technical scheme: the automobile bushing torsion endurance test detection system comprises any one of the automobile bushing torsion endurance implementation mechanisms; and the sensing assembly is arranged on the connecting assembly and comprises a torsion sensor arranged on the side part of the flange plate of the torsion clamp far away from the fixed force driving oil cylinder, a torsion oil cylinder arranged on the side of the torsion sensor far away from the torsion clamp and a push-pull force oil cylinder arranged between the linear bearing and the lock clamp.

As a preferable scheme of the automobile bushing torsion endurance test detection system of the utility model, wherein: the torsion sensor is provided with a spline clamp on one side far away from the torsion cylinder, the torsion sensor is fixed on one side, close to the torsion clamp, of the torsion cylinder, one side, close to the torsion cylinder, of the spline clamp is connected through a flange, and the torsion sensor is arranged between the spline clamp and the torsion cylinder.

The utility model has the beneficial effects that: the arrangement of the torsion sensor is added by installing the torsion oil cylinder and the push-pull force oil cylinder instead of manual operation, so that the measurement data of the bushing are detected at all times, and the accuracy of the experiment is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a schematic diagram of the overall structure of the torsion endurance test platform of the automotive bushing of the present utility model.

Fig. 2 is a schematic structural diagram of an adjusting component of the torsion endurance test platform for an automobile bushing.

Fig. 3 is a schematic structural diagram of a connection assembly of the torsion endurance test platform for an automobile bushing according to the present utility model.

Fig. 4 is a schematic diagram of the structure of fig. 3 a of the torsion endurance test platform for the automobile bushing according to the present utility model.

Fig. 5 is a schematic diagram of an explosion structure of a thrust component of the torsion endurance test platform of the automobile bushing.

FIG. 6 is a schematic diagram of the overall structure of the test system for torsional durability of an automotive bushing according to the present utility model.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Further, in describing the embodiments of the present utility model in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

Example 1

Referring to fig. 1 to 2, there is provided an automobile bushing torsion endurance test platform, including, a support assembly 100 including a main board 101, a clamping plate layer 102 disposed at an upper end of the main board 101, a fixing frame 103 disposed on the clamping plate layer 102, and an adjusting part 104 disposed at an upper end of the clamping plate layer 102; and the connecting assembly 200 is arranged on the side part of the adjusting part 104 and comprises a lining steel sleeve 201 arranged on the fixing frame 103, torsion clamps 202 arranged on two sides of the lining steel sleeve 201 close to the fixing frame 103, a constant force driving oil cylinder 203 arranged on one side of the fixing frame 103 and a thrust part 204 arranged on the side part of the lining steel sleeve 201.

Specifically, the clamping plate layer 102 is detachably connected to the main board 101, the clamping plate layer 102 is composed of a plurality of dismounting plates, gaps are reserved between every dismounting plate, the fixing frames 103 are provided with two fixing frames 103, the two fixing frames 103 are symmetrically arranged on two sides of one end of the clamping plate layer 102, far away from the main board 101, of the fixing frames 103, a rotating shaft through hole is formed in the center of each fixing frame 103, each adjusting part 104 comprises a first supporting plate 104a arranged on the clamping plate layer 102, a second supporting plate 104b arranged on the side of each first supporting plate 104a and a third supporting plate 104c arranged on the side of each lining steel sleeve 201, the first supporting plates 104a are detachably connected to the upper end of the clamping plate layer 102, the first supporting plates 104a are fixedly connected with the fixed force driving oil cylinders 203, the second supporting plates 104b are arranged on one side, close to the fixed force driving oil cylinders 203, the third supporting plates 104c are arranged on one side, far away from the lining steel sleeves 201, of each thrust part 204c is close to the second supporting plates 104b, one ends of the second clamping plates 204d are detachably connected with the linear bearings 204c, and the other ends of the second clamping plates are detachably connected with the second supporting plates 104 b.

Specifically, the fixing frame 103 is fixed on the clamping plate layer 102 and the main board 101 through bolts, the clamping plate layer 102 can play a role of a gasket, so that the fixing frame 103 is fixed and stable, the first supporting plate 104a, the second supporting plate 104b and the third supporting plate 104c are detachably connected to the clamping plate layer 102 and the main board 101, the fixed force driving oil cylinder 203 and the torsion clamp 202 are detachably connected through bolts and flanges, and the flanges arranged on the torsion connecting rods 201a at the side parts of the torsion bushings further increase the detachability of the device

Working principle: the clamp plate layer 102 is detachably mounted on the main board 101, the clamp plate layer 102 is made of a material with good friction, a gap on the clamp plate layer 102 can be used for fixing the first support plate 104a, the second support plate 104b and the third support plate 104c on the main board 101 through bolts, when the stress position of the bottom part, which is contacted with the main board 101, of the adjusting part 104 is damaged due to long-time experiments, an operator only needs to replace a dismounting plate at the damaged position of the clamp plate layer 102, when the experiment table needs to be dismounted for overhauling or transportation and preservation, the operator only needs to dismount the flange plates, the fixing frame 103, the first support plate 104a and the fixed force driving oil cylinder 203 on two sides of the bushing steel sleeve 201, then the second support plate 104b, the third support plate 104c and the second clamp 204d can be dismounted, and the dismounting of the push-pull measurement can be completed.

Example 2

Referring to fig. 2 to 5, this embodiment differs from the first embodiment in that: a fixing frame 103 arranged on the clamping plate layer 102, and an adjusting part 104 arranged at the upper end of the clamping plate layer 102; and the connecting assembly 200 is arranged on the side part of the adjusting part 104, and comprises a bushing steel sleeve 201 arranged on the fixing frame 103, torsion clamps 202 arranged on two sides of the bushing steel sleeve 201 close to the fixing frame 103, a constant force driving oil cylinder 203 arranged on one side of the fixing frame 103, wherein the constant force driving oil cylinder 203 can set a torsion value and a thrust part 204 arranged on the side part of the bushing steel sleeve 201.

Specifically, the adjusting component 104 includes a first support plate 104a disposed on the clamping plate layer 102, a second support plate 104b disposed on a side portion of the first support plate 104a, and a third support plate 104c disposed on a side portion of the bushing steel sleeve 201, where the first support plate 104a is detachably connected to an upper end of the clamping plate layer 102, the first support plate 104a is fixedly connected to the fixed force driving cylinder 203, the second support plate 104b is mounted on a side, close to the fixed force driving cylinder 203, of a middle portion of the clamping plate layer 102, the third support plate 104c is disposed on a side, far from the bushing steel sleeve 201, of the thrust component 204, a second space is formed in the bushing steel sleeve 201, a bushing can be mounted in the second space, torsion connecting rods 201a are disposed on two sides of the bushing steel sleeve 201 and coaxial with the rotating shaft through holes, and a flange is disposed on a side, far from the bushing steel sleeve 201.

Specifically, the torsion clamp 202 is rotationally connected to the through hole of the rotating shaft, the torsion clamp 202 is connected to the torsion connecting rod 201a through a flange, one end of the torsion clamp 202, away from the torsion connecting rod 201a, is rotationally connected to the constant force driving cylinder 203, the thrust component 204 includes a bushing clamp 204a disposed on the side of the bushing steel sleeve 201, a connecting rod 204b disposed on the side of the bushing clamp 204a, a linear bearing 204c disposed on the side of the connecting rod 204b, away from the bushing clamp 204a, a lock-shaped clamp disposed on the side of the linear bearing 204c, away from the connecting rod 204b, a second clamp 204d disposed on the side of the linear bearing 204c, close to the second support plate 104b, one end of the second clamp 204d is detachably connected to the linear bearing 204c, and the other end of the second clamp is detachably connected to the second support plate 104 b.

The rest of the structure is the same as in embodiment 1.

Working principle: through adjusting the distance between first backup pad 104a and the mount 103 to and change suitable bush steel bushing 201 and twist reverse anchor clamps 202 model, realize the fixed adjustable to car bush torsion test direction, through changing the distance between third support frame and the mount 103 and changing suitable bush anchor clamps 204a, realize the fixed adjustable to car bush push-pull realization direction, thereby satisfy the durable experiment that the device is applicable to multiple car bush.

Example 3

Referring to fig. 6, this embodiment differs from the above embodiment in that: the automobile bushing torsion endurance test detection system comprises any one of the automobile bushing torsion endurance test platforms in the embodiment, and a sensing assembly 300, wherein the sensing assembly 300 is arranged on the connecting assembly 200, and comprises a torsion sensor arranged on the side of a flange plate of a torsion clamp 202 far away from a fixed force driving oil cylinder 203, a torsion oil cylinder 301 arranged on the side of the torsion sensor far away from the torsion clamp 202, and a push-pull force oil cylinder 302 arranged between a linear bearing 204c and a lock-shaped clamp, the side of the torsion sensor far away from the torsion oil cylinder 301 is provided with a spline clamp 303, the torsion sensor is fixed on the side of the torsion oil cylinder 301 close to the torsion clamp 202, the side of the spline clamp 303 close to the torsion oil cylinder 301 is connected through a flange, and the torsion sensor is arranged between the spline clamp 303 and the torsion oil cylinder 301.

The rest of the structure is the same as in embodiment 2.

The operation process comprises the following steps: before the test, an air amplifier is used for carrying out real-time heat dissipation on a bushing in the test to avoid cracking caused by overheating of the bushing, a torsion cylinder 301 is fixed on an iron platform by using a pressing block (not shown in the figure), a torsion sensor is fixed on a clamp of the torsion cylinder, a spline clamp 303 is fixed on the torsion sensor, a torsion clamp 202 penetrates through a fixing frame 103 with a rotating shaft through hole and is connected with the spline clamp 303, the bushing is installed in a bushing steel sleeve 201, the thrust direction of a fixed force driving cylinder 203 and the rotating center of the torsion cylinder 301 are adjusted to be in the axial direction of the bushing, one end of a linear bearing 204c is fixed on the driving cylinder, the other end of the linear bearing 204b and the bushing clamp 204a are fixed on the bushing steel sleeve 201 through a connecting rod 204b and the bushing clamp 204a, a loading program is set, a force is applied to the torque value of 1500N in the axial direction of the bushing is loaded for a long time, then the torque value is started and the torque value is formed by 90 degrees with the bushing, when the torque moment of the torsion cylinder 301 reaches a set value in the test, the push-pull torque value is immediately converted into a reverse torque moment, when the push-pull torque value reaches the set value in the test, and if the reverse torque value reaches the set torque value immediately, the reverse torque value is immediately stopped when the set torque value reaches the reverse torque value in the test, and the set torque value is immediately stops when the torque value is converted; setting the torsion angle of the torsion cylinder 301, ensuring that the torsion angles are the same each time, and immediately alarming and stopping if the torsion angles exceed the set torsion angles in operation; after the program is set, the test is started, and the torsion cylinder 301 twists the bushing along the axial direction of the bushing, so that the durability and the strength of the inner wall of the bushing and the two ends of the bushing are verified, and the accuracy of the test is improved.

It is important to note that the construction and arrangement of the utility model as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present utility model. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility models. Therefore, the utility model is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the utility model, or those not associated with practicing the utility model).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims (10)

1. An automobile bushing torsion endurance test platform, which is characterized in that: comprising the steps of (a) a step of,

the support assembly (100) comprises a main board (101), a clamping plate layer (102) arranged at the upper end of the main board (101), a fixing frame (103) arranged on the clamping plate layer (102) and an adjusting part (104) arranged at the upper end of the clamping plate layer (102); the method comprises the steps of,

the connecting assembly (200), the connecting assembly (200) is arranged on the side part of the adjusting part (104), and comprises a lining steel sleeve (201) arranged on the fixing frame (103), torsion clamps (202) arranged on the side, close to the two sides of the fixing frame (103), of the lining steel sleeve (201), a fixed force driving oil cylinder (203) arranged on one side of the fixing frame (103) and a thrust part (204) arranged on the side part of the lining steel sleeve (201).

2. The automotive bushing torsion durability test platform of claim 1, wherein: the clamping plate layer (102) is detachably connected to the main board (101), the clamping plate layer (102) is composed of a plurality of detaching plates, and gaps are reserved between the detaching plates.

3. The automotive bushing torsion durability test platform of claim 2, wherein: the fixing frames (103) are arranged at two sides of the center of one end, far away from the main board (101), of the clamping board layer (102), and the center of the fixing frame (103) is provided with a rotating shaft through hole.

4. A car bushing torsion endurance test platform as claimed in claim 2 or 3, wherein: the adjusting component (104) comprises a first supporting plate (104 a) arranged on the clamping plate layer (102), a second supporting plate (104 b) arranged on the side part of the first supporting plate (104 a) and a third supporting plate (104 c) arranged on the side part of the bushing steel sleeve (201), wherein the first supporting plate (104 a) is detachably connected to the upper end of the clamping plate layer (102), the first supporting plate (104 a) is fixedly connected with the fixed force driving oil cylinder (203), the second supporting plate (104 b) is arranged on one side, close to the fixed force driving oil cylinder (203), of the middle part of the clamping plate layer (102), and the third supporting plate (104 c) is arranged on one side, far away from the bushing steel sleeve (201), of the thrust component (204).

5. The automotive bushing torsion durability test platform of claim 4, wherein: a second space is formed in the bushing steel sleeve (201), a bushing can be installed in the second space, torsion connecting rods (201 a) are arranged on two sides of the bushing steel sleeve (201), the torsion connecting rods (201 a) and the rotating shaft through holes are coaxial, and a flange plate is arranged on one side, far away from the bushing steel sleeve (201), of the torsion connecting rods (201 a).

6. The automotive bushing torsion durability test platform of claim 5, wherein: the torsion clamp (202) is rotationally connected to the rotating shaft through hole, the torsion clamp (202) is connected with the torsion connecting rod (201 a) through the flange plate, and one end, away from the torsion connecting rod (201 a), of the torsion clamp (202) is rotationally connected with the constant force driving oil cylinder (203).

7. The automotive bushing torsion durability test platform of claim 5, wherein: the thrust component (204) comprises a bushing clamp (204 a) arranged on the side of the bushing steel sleeve (201), a connecting rod (204 b) arranged on one side, far away from the bushing steel sleeve (201), of the bushing clamp (204 a), a linear bearing (204 c) arranged on one side, far away from the bushing clamp (204 a), of the connecting rod (204 b), and a lock-shaped clamp arranged on one end, far away from the connecting rod (204 b), of the linear bearing (204 c).

8. The automotive bushing torsion durability test platform of claim 7, wherein: and one side, close to the second supporting plate (104 b), of the linear bearing (204 c) is provided with a second clamp (204 d), one end of the second clamp (204 d) is detachably connected with the linear bearing (204 c), and the other end of the second clamp is detachably connected with the second supporting plate (104 b).

9. The utility model provides an automobile bush torsion endurance test detecting system which characterized in that: comprising the automobile bushing torsion durability realizing mechanism according to any one of claims 1 to 8; the method comprises the steps of,

the sensing assembly (300) is arranged on the connecting assembly (200) and comprises a torsion sensor arranged on the side of a flange plate of the torsion clamp (202) far away from the fixed force driving oil cylinder (203), a torsion oil cylinder (301) arranged on the side of the torsion sensor far away from the torsion clamp (202) and a push-pull force oil cylinder (302) arranged between the linear bearing (204 c) and the lock-shaped clamp.

10. The automotive bushing torsional endurance test detection system of claim 9, wherein: the torsion sensor is provided with a spline clamp (303) on one side far away from the torsion cylinder (301), the torsion sensor is fixed on one side, close to the torsion clamp (202), of the torsion cylinder (301), one side, close to the torsion cylinder (301), of the spline clamp (303) is connected through a flange, and the torsion sensor is arranged between the spline clamp (303) and the torsion cylinder (301).