Pendulum bob impact testing device for steering gear

Abstract

The utility model provides a pendulum bob impact test device for a steering gear. The pendulum bob impact test device comprises a gantry frame; the upper end of the pendulum bob assembly is hung on the gantry frame, the lower end of the pendulum bob assembly is provided with a pendulum bob, and the pendulum bob does pendulum motion in the gantry frame to strike the steering gear; the lifting assembly is fixed to the gantry frame, connected with the pendulum bob assembly and used for lifting the pendulum bob assembly to the initial height; the pendulum bob locking assembly is fixed to the gantry frame and the pendulum bob assembly and enables the pendulum bob assembly to suspend at the initial height or fall from the initial height; the impact bearing assembly is located on the bottom test platform of the gantry frame, is fixedly connected with a steering pull rod of the steering gear and enables a pendulum bob to hit the steering pull rod of the steering gear; the steering gear fixing assembly is located on the bottom testing platform of the gantry frame, fixedly connected with the steering gear and used for adjusting the position of the steering gear. According to the utility model, the impact force and the position of the steering gear can be conveniently adjusted in the impact test of the steering gear.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts testing, in particular to a pendulum impact testing device for a steering gear. Background Art

[0002] The steering gear is an important part in a car. It is used to appropriately transform the steering torque and steering angle from the steering wheel and then output them to the steering rod mechanism to make the car steer.

[0003] The steering gear is directly subjected to the impact load transmitted from the car tire through the steering rod. In order to test the impact resistance of the steering gear in the early stage of development, an impact force test is required to verify the safety performance of the steering gear. However, in the prior art, there is a lack of a test device that can arbitrarily adjust the impact force and the position of the steering gear.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the utility model, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In view of this, the utility model provides a pendulum impact test device for a steering gear, so as to at least solve the problem that the impact force size of the current steering gear test device and the steering gear position are inconvenient to adjust arbitrarily.

[0006] The utility model provides a pendulum impact test device for a steering gear, comprising:

[0007] Gantry frame;

[0008] A pendulum assembly, the upper end of which is suspended from the gantry frame, and the lower end of which is provided with a pendulum, wherein the pendulum performs a pendulum motion in the gantry frame to strike the diverter;

[0009] A lifting assembly is fixed to the gantry frame and connected to the pendulum assembly, and lifts the pendulum assembly to a starting height;

[0010] A pendulum locking assembly is fixed to the gantry frame and the pendulum assembly, and enables the pendulum assembly to suspend at a starting height or fall from a starting height;

[0011] An impact bearing assembly is located on the bottom test platform of the gantry frame, fixedly connected to the steering tie rod of the steering gear, and enables the pendulum to hit the steering tie rod of the steering gear;

[0012] The steering gear fixing assembly is located on the bottom test platform of the gantry frame, fixedly connected to the steering gear, and adjusts the position of the steering gear.

[0013] Benefiting from the above-mentioned setting of the pendulum impact test device, it is possible to improve the impact force of the steering gear test device and the convenience of arbitrary adjustment of the steering gear position.

[0014] In some embodiments, the pendulum assembly further includes: a long swing arm, a short swing arm, and a first air pressure device;

[0015] The upper end of the long swing arm is suspended on the gantry frame, and the lower end is connected to the pendulum; the side surface of the lower end of the long swing arm has a first through hole structure;

[0016] The upper end of the short swing arm is suspended on the gantry frame, and the lower end is located above the pendulum; the lower end of the short swing arm has a second through-hole structure;

[0017] The first air pressure device is fixedly connected to the lower end of the short swing arm; the first air pressure device has a first telescopic structure;

[0018] Among them, the first air pressure device has: a first state in which the first telescopic structure passes through the first through-hole structure and the second through-hole structure when extended to connect the long swing arm and the short swing arm, and a second state in which the first telescopic structure is located outside the first through-hole structure and the second through-hole structure when contracted to disconnect the long swing arm and the short swing arm.

[0019] Benefiting from the above-mentioned setting of the pendulum assembly, it is convenient to adjust the falling height of the pendulum, so as to further adjust the magnitude of the impact force. At the same time, the first air pressure device facilitates the fixation and separation of the long swing arm and the short swing arm, so as to facilitate the lifting and falling of the pendulum.

[0020] In some embodiments, the lifting assembly includes: a first pulley, a second pulley, a lifting motor, and a traction line;

[0021] The first pulley is fixed to the upper part of the gantry frame;

[0022] The second pulley is fixed to the side of the short swing arm;

[0023] The lifting motor is fixed to the gantry frame and is located above the first pulley;

[0024] The traction line is wound around the first pulley, the second pulley and the lifting motor, and driven by the lifting motor to lift the short swing arm to the starting height.

[0025] Benefiting from the above arrangement of the lifting assembly, it is convenient to lift the pendulum, so as to adjust the falling height of the pendulum, and further to adjust the magnitude of the impact force.

[0026] In some embodiments, the pendulum locking assembly includes: a screw rod, a locking mechanism, and a second pneumatic device;

[0027] The screw rod is fixed to the gantry frame, is in a downwardly convex bow shape, and has saw teeth on the lower surface;

[0028] The locking mechanism is fixed to the side of the long swing arm and meshes with the saw teeth to make the pendulum assembly hover at the starting height;

[0029] The second air pressure device is fixedly connected to the side of the short swing arm; the second air pressure device has a second telescopic structure;

[0030] Wherein, the second air pressure device has: a first state in which the pendulum assembly is suspended at the starting height when the second telescopic structure is contracted, and a second state in which the locking mechanism is pushed when the second telescopic structure is extended to make the pendulum assembly fall from the starting height.

[0031] Benefiting from the above arrangement of the pendulum locking assembly, it is convenient to fix and release the pendulum after it is lifted to the starting height, and the starting height can be adjusted.

[0032] In some embodiments, the impact bearing assembly includes: an impact force transmitting mechanism, an impact force sensor, and an impact force transmitting mechanism fixing device;

[0033] The impact force transmission mechanism is arranged along the axial direction of the steering gear and is fixedly connected to the steering tie rod of the steering gear. When the pendulum falls, it hits the impact force transmission mechanism to hit the steering tie rod of the steering gear.

[0034] The impact force sensor is arranged between the impact force transmission mechanism and the steering tie rod of the steering gear to record the impact force of the pendulum;

[0035] The impact force transmission mechanism fixing device is fixedly connected to the bottom test platform of the gantry frame and is fixedly connected to the impact force transmission mechanism.

[0036] Benefiting from the above arrangement of the impact bearing component, it is convenient to stably fix the steering rod of the steering gear, receive the impact force from the pendulum, transmit the impact force to the steering rod, and record the magnitude of the impact force.

[0037] In some embodiments, the steering gear fixing assembly is welded to the bottom test platform of the gantry frame;

[0038] The steering gear is fixed to the steering gear fixing assembly by a clamp, and the spatial position is adjusted by the adjusting assembly of the steering gear fixing assembly to adjust the impact position of the steering tie rod of the steering gear.

[0039] Benefiting from the above arrangement of the steering gear fixing assembly, it is convenient to stably fix the steering gear and to adjust the position of the steering gear to match the impact of the pendulum.

[0040] In some embodiments, the pendulum impact testing device for a steering gear further comprises:

[0041] An angle dial is located at the upper end of the pendulum assembly and is fixed to the gantry frame; the angle dial has angle scales arranged along the swing direction of the pendulum assembly to record the swing angle corresponding to the starting height of the pendulum assembly.

[0042] Thanks to the above setting of the angle dial, it is convenient to calculate the lifting height of the pendulum according to the lifting angle of the pendulum and the arm length of the long pendulum arm, and then it is convenient to adjust the size of the impact force according to the lifting angle.

[0043] In some embodiments, the pendulum impact testing device for a steering gear further comprises:

[0044] The steering gear input end fixing component is screwed to the bottom test platform of the gantry frame and is fixedly connected to the input end of the steering gear, and together with the steering gear fixing component, fixes the steering gear.

[0045] Benefiting from the above-mentioned setting of the steering gear input end fixing component, it is convenient to stably fix the input end of the steering gear to further stably fix the steering gear.

[0046] In some embodiments, the two sides of the gantry frame are symmetrical structures, and the pendulum assembly, the lifting assembly, the pendulum locking assembly and the impact bearing assembly are all located between the two sides of the gantry frame.

[0047] Benefiting from the above arrangement, a stable supporting structure is provided for the pendulum impact, thereby improving the accuracy of the impact force measurement.

[0048] In some embodiments, the pendulum is cylindrical, and the pendulum and the impact force transmission mechanism are coaxial when impacting;

[0049] The swing trajectory of the pendulum, the axis of the impact force transmission mechanism and the axis of the steering tie rod of the steering gear are coplanar.

[0050] Thanks to the above arrangement, the impact force transmission efficiency of the pendulum impact can be improved, and at the same time, the impact can be stable, further improving the accuracy of the impact force measurement.

[0051] Compared with the prior art, the beneficial effects of the present invention include at least:

[0052] The pendulum impact test device for a steering gear provided by the utility model is based on a pendulum gravity impact method. (1) The magnitude of the impact force can be adjusted by adjusting the pendulum angle; (2) The steering gear fixing platform can be used to adjust the steering gear test position; and (3) The magnitude of the impact force applied to the steering gear during the impact test can be recorded by a force sensor.

[0053] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present utility model, and together with the specification, are used to explain the principles of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0055] Figure 1 A three-dimensional diagram showing a pendulum impact test device for a steering gear according to an embodiment of the utility model;

[0056] Figure 2 A front view showing a pendulum impact testing device for a steering gear according to an embodiment of the utility model;

[0057] Figure 3 A top view showing a pendulum impact testing device for a steering gear according to an embodiment of the utility model;

[0058] Figure 4 A three-dimensional diagram showing a pendulum assembly, a lifting assembly and a pendulum locking assembly according to an embodiment of the utility model;

[0059] Figure 5 Show Figure 4 A partial enlarged view of the center screw and locking mechanism.

[0060] Reference numerals:

[0061] 10 Gantry frame

[0062] 20 Pendulum assembly

[0063] 21 Pendulum

[0064] 22 Long swing arm

[0065] 23 Short swing arm

[0066] 24 First air pressure device

[0067] 30 Lifting components

[0068] 31 First pulley

[0069] 32 Second pulley

[0070] 33 Lifting motor

[0071] 34 Pull Line

[0072] 40 Pendulum locking assembly

[0073] 41 Screw

[0074] 42 Locking mechanism

[0075] 43 Second air pressure device

[0076] 50 Impact bearing components

[0077] 51 Impact force transmission mechanism

[0078] 52 Impact force sensor

[0079] 53 Impact force transmission mechanism fixing device

[0080] 60 Steering gear fixing assembly

[0081] 70 degree angle dial DETAILED DESCRIPTION

[0082] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein. Instead, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0083] The words "first", "second" and similar words used in the specific description do not indicate any order, quantity or importance, but are only used to distinguish different components. In addition, in the description of the present invention, the directions or positional relationships indicated by the terms "upper" and "lower" are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention.

[0084] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in different embodiments may be combined with each other.

[0085] Figure 1 A three-dimensional diagram showing a pendulum impact test device for a steering gear according to an embodiment of the utility model; Figure 2A front view showing a pendulum impact testing device for a steering gear according to an embodiment of the utility model; Figure 3 A top view showing a pendulum impact testing device for a steering gear according to an embodiment of the utility model; Figure 4 A three-dimensional diagram showing a pendulum assembly, a lifting assembly and a pendulum locking assembly according to an embodiment of the utility model; Figure 5 Show Figure 4 A partial enlarged view of the center screw and locking mechanism.

[0086] like Figures 1 to 5 As shown, the utility model provides a pendulum impact test device for a steering gear, comprising: a gantry frame 10; a pendulum assembly 20, the upper end of which is suspended on the gantry frame 10, and the lower end of which has a pendulum 21, the pendulum 21 performs a pendulum motion in the gantry frame 10 to hit the steering gear; a lifting assembly 30, which is fixed to the gantry frame 10 and connected to the pendulum assembly 20, and lifts the pendulum assembly 20 to a starting height; a pendulum locking assembly 40, which is fixed to the gantry frame 10 and the pendulum assembly 20, and makes the pendulum assembly 20 hover at the starting height or fall from the starting height; an impact bearing assembly 50, which is located at the bottom test platform of the gantry frame 10, is fixedly connected to the steering tie rod of the steering gear, and makes the pendulum 21 hit the steering tie rod of the steering gear; a steering gear fixing assembly 60, which is located at the bottom test platform of the gantry frame 10, is fixedly connected to the steering gear, and adjusts the position of the steering gear. Benefiting from the above-mentioned setting of the pendulum impact test device, it is convenient to improve the convenience of the impact force of the test device of the steering gear and the arbitrary adjustment of the position of the steering gear.

[0087] In some embodiments, the steering gear may include, according to the power-assistance type: a mechanical hydraulic power steering gear, an electronic hydraulic power steering gear, an electric power steering gear, etc.

[0088] In some embodiments, the pendulum assembly 20 also includes: a long swing arm 22, a short swing arm 23 and a first pneumatic device 24; the upper end of the long swing arm 22 is suspended on the gantry frame 10, and the lower end is connected to the pendulum 21; the side surface of the lower end of the long swing arm 22 has a first through hole structure; the upper end of the short swing arm 23 is suspended on the gantry frame 10, and the lower end is located above the pendulum 21; the lower end of the short swing arm 23 has a second through hole structure; the first pneumatic device 24 is fixedly connected to the lower end of the short swing arm 23; the first pneumatic device 24 has a first telescopic structure; wherein the first pneumatic device 24 has: a first state in which the first telescopic structure passes through the first through hole structure and the second through hole structure when extended to connect the long swing arm 22 and the short swing arm 23, and a second state in which the first telescopic structure is located outside the first through hole structure and the second through hole structure when contracted to disconnect the long swing arm 22 and the short swing arm 23. Benefiting from the above-mentioned setting of the pendulum assembly 20, it is convenient to adjust the falling height of the pendulum 21, so as to further adjust the magnitude of the impact force. At the same time, the first air pressure device 24 facilitates the fixation and separation of the long swing arm 22 and the short swing arm 23, so as to facilitate the lifting and falling of the pendulum 21.

[0089] In some embodiments, the lifting assembly 30 includes: a first pulley 31, a second pulley 32, a lifting motor 33 and a traction line 34; the first pulley 31 is fixed to the upper part of the gantry frame 10; the second pulley 32 is fixed to the side of the short swing arm 23; the lifting motor 33 is fixed to the gantry frame 10 and is located above the first pulley 31; the traction line 34 is wound around the first pulley 31, the second pulley 32 and the lifting motor 33, and under the traction of the lifting motor 33, the short swing arm 23 is driven to lift to the starting height. Benefiting from the above-mentioned setting of the lifting assembly 30, it is convenient to lift the pendulum 21, so as to adjust the falling height of the pendulum 21, and further facilitate the adjustment of the magnitude of the impact force.

[0090] In some embodiments, the pendulum locking assembly 40 includes: a screw rod 41, a locking mechanism 42 and a second air pressure device 43; the screw rod 41 is fixed to the gantry frame 10, is in a downwardly protruding bow shape, and has serrations on the lower surface; the locking mechanism 42 is fixed to the side of the long swing arm 22, and meshes with the serrations to make the pendulum assembly 20 hover at the starting height; the second air pressure device 43 is fixed to the side of the short swing arm 23; the second air pressure device 43 has a second telescopic structure; wherein the second air pressure device 43 has: a first state in which the pendulum assembly 20 hovers at the starting height when the second telescopic structure is contracted, and a second state in which the locking mechanism 42 is pushed to make the pendulum assembly 20 fall from the starting height when the second telescopic structure is extended. Benefiting from the above-mentioned setting of the pendulum locking assembly 40, it is convenient to fix and release the pendulum 21 after it is lifted to the starting height, and the starting height can be adjusted.

[0091] In some embodiments, the impact bearing assembly 50 includes: an impact force transmission mechanism 51, an impact force sensor 52, and an impact force transmission mechanism fixing device 53; the impact force transmission mechanism 51 is arranged along the axial direction of the steering gear, and is fixedly connected to the steering tie rod of the steering gear. When the pendulum 21 falls, it hits the impact force transmission mechanism 51 to hit the steering tie rod of the steering gear; the impact force sensor 52 is arranged between the impact force transmission mechanism 51 and the steering tie rod of the steering gear, and records the impact force of the pendulum 21; the impact force transmission mechanism fixing device 53 is fixedly connected to the bottom test platform of the gantry frame 10, and is fixedly connected to the impact force transmission mechanism 51. Benefiting from the above arrangement of the impact bearing assembly 50, it is convenient to stably fix the steering tie rod of the steering gear, receive the impact force from the pendulum 21, transmit the impact force to the steering tie rod, and record the magnitude of the impact force.

[0092] In some embodiments, the steering gear fixing assembly 60 is welded to the bottom test platform of the gantry frame 10; the steering gear is fixed to the steering gear fixing assembly 60 by a clamp, and the spatial position is adjusted by the adjustment assembly of the steering gear fixing assembly 60 to adjust the impact position of the steering tie rod of the steering gear. Thanks to the above-mentioned setting of the steering gear fixing assembly 60, it is convenient to stably fix the steering gear and to adjust the position of the steering gear to match the impact of the pendulum 21.

[0093] In some embodiments, the pendulum impact test device for the steering gear further includes: an angle dial 70, located at the upper end of the pendulum assembly 20, fixed to the gantry frame 10; the angle dial 70 has an angle scale set along the swing direction of the pendulum assembly 20 to record the swing angle corresponding to the starting height of the pendulum assembly 20. Benefiting from the above setting of the angle dial 70, it is convenient to calculate the lifting height of the pendulum 21 according to the lifting angle of the pendulum 21 and the arm length of the long swing arm 22, and then it is convenient to adjust the magnitude of the impact force according to the lifting angle.

[0094] In some embodiments, the pendulum impact test device for a steering gear further includes: a steering gear input end fixing assembly, which is screwed to the bottom test platform of the gantry frame 10 and fixedly connected to the input end of the steering gear, and fixes the steering gear together with the steering gear fixing assembly 60. Benefiting from the above-mentioned setting of the steering gear input end fixing assembly, it is convenient to stably fix the input end of the steering gear, so as to further stably fix the steering gear.

[0095] In some embodiments, the two sides of the gantry frame 10 are symmetrical structures, and the pendulum assembly 20, the lifting assembly 30, the pendulum locking assembly 40 and the impact bearing assembly 50 are all located between the two sides of the gantry frame 10. Benefiting from the above arrangement, a stable support structure is provided for the impact of the pendulum 21, thereby improving the accuracy of the impact force measurement.

[0096] In some embodiments, the pendulum 21 is cylindrical, and the pendulum 21 and the impact force transmission mechanism 51 are coaxial when impacting; the swing trajectory of the pendulum 21, the axis of the impact force transmission mechanism 51 and the axis of the steering tie rod of the steering gear are coplanar. Benefiting from the above arrangement, the impact force transmission efficiency of the pendulum 21 can be improved, and the impact can be stable, further improving the accuracy of the impact force measurement.

[0097] In summary, the pendulum impact test device for a steering gear provided by the utility model is based on a pendulum gravity impact method. (1) The magnitude of the impact force can be easily adjusted by adjusting the pendulum angle; (2) The steering gear fixing platform can be used to facilitate the adjustment of the steering gear test position; (3) The force sensor can be used to facilitate the recording of the magnitude of the impact force applied to the steering gear during the impact test.

[0098] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A pendulum impact test device for a steering gear, It is characterized in that include: Gantry frame (10); A pendulum assembly (20) is suspended at its upper end on the gantry frame (10) and has a pendulum (21) at its lower end. The pendulum (21) performs pendulum motion in the gantry frame (10) to strike the steering gear. A lifting assembly (30) is fixed to the gantry frame (10) and connected to the pendulum assembly (20), and lifts the pendulum assembly (20) to a starting height; A pendulum locking assembly (40) is fixed to the gantry frame (10) and the pendulum assembly (20), and enables the pendulum assembly (20) to suspend at a starting height or fall from the starting height; An impact bearing assembly (50) is located on the bottom test platform of the gantry frame (10), fixedly connected to the steering tie rod of the steering gear, and enables the pendulum (21) to hit the steering tie rod of the steering gear; The steering gear fixing assembly (60) is located on the bottom test platform of the gantry frame (10), fixedly connected to the steering gear, and adjusts the position of the steering gear.

2. The pendulum impact test device for a steering gear according to claim 1, It is characterized in that The pendulum assembly (20) further comprises: a long swing arm (22), a short swing arm (23) and a first air pressure device (24); The upper end of the long swing arm (22) is suspended on the gantry frame (10), and the lower end is connected to the pendulum (21); the side surface of the lower end of the long swing arm (22) has a first through hole structure; The upper end of the short swing arm (23) is suspended on the gantry frame (10), and the lower end is located above the pendulum (21); the lower end of the short swing arm (23) has a second through-hole structure; The first air pressure device (24) is fixedly connected to the lower end of the short swing arm (23); the first air pressure device (24) has a first telescopic structure; The first air pressure device (24) has a first state in which the first telescopic structure passes through the first through-hole structure and the second through-hole structure when the first telescopic structure is extended to connect the long swing arm (22) and the short swing arm (23), and a second state in which the first telescopic structure is located outside the first through-hole structure and the second through-hole structure when the first telescopic structure is contracted to disconnect the long swing arm (22) and the short swing arm (23).

3. The pendulum impact test device for a steering gear according to claim 2, It is characterized in that The lifting assembly (30) comprises: a first pulley (31), a second pulley (32), a lifting motor (33) and a traction line (34); The first pulley (31) is fixed to the upper part of the gantry frame (10); The second pulley (32) is fixed to the side of the short swing arm (23); The lifting motor (33) is fixed to the gantry frame (10) and is located above the first pulley (31); The traction line (34) is wound around the first pulley (31), the second pulley (32) and the lifting motor (33), and driven by the lifting motor (33) to lift the short swing arm (23) to the starting height.

4. The pendulum impact test device for a steering gear according to claim 2, It is characterized in that The pendulum locking assembly (40) comprises: a screw rod (41), a locking mechanism (42) and a second air pressure device (43); The screw rod (41) is fixed to the gantry frame (10), is in a downwardly convex arc shape, and has saw teeth on the lower surface; The locking mechanism (42) is fixed to the side of the long swing arm (22) and meshes with the saw teeth to allow the pendulum assembly (20) to hover at the starting height; The second air pressure device (43) is fixedly connected to the side surface of the short swing arm (23); the second air pressure device (43) has a second telescopic structure; The second air pressure device (43) has: a first state in which the pendulum assembly (20) is suspended at the starting height when the second telescopic structure is contracted, and a second state in which the second telescopic structure pushes the locking mechanism (42) to cause the pendulum assembly (20) to fall from the starting height when the second telescopic structure is extended.

5. The pendulum impact test device for a steering gear according to claim 1, It is characterized in that The impact bearing assembly (50) comprises: an impact force transmission mechanism (51), an impact force sensor (52) and an impact force transmission mechanism fixing device (53); The impact force transmission mechanism (51) is arranged along the axial direction of the steering gear and is fixedly connected to the steering tie rod of the steering gear. When the pendulum (21) falls, it hits the impact force transmission mechanism (51) to hit the steering tie rod of the steering gear. The impact force sensor (52) is arranged between the impact force transmission mechanism (51) and the steering tie rod of the steering gear, and records the impact force of the pendulum (21); The impact force transmission mechanism fixing device (53) is fixedly connected to the bottom test platform of the gantry frame (10), and is also fixedly connected to the impact force transmission mechanism (51).

6. The pendulum impact test device for a steering gear according to claim 1, It is characterized in that The steering gear fixing assembly (60) is welded to the bottom test platform of the gantry frame (10); The steering gear is fixed to the steering gear fixing assembly (60) by a clamp, and the spatial position is adjusted by an adjustment assembly of the steering gear fixing assembly (60) to adjust the impact position of the steering tie rod of the steering gear.

7. The pendulum impact test device for a steering gear according to claim 1, It is characterized in that Also includes: An angle dial (70) is located at the upper end of the pendulum assembly (20) and is fixed to the gantry frame (10); the angle dial (70) has angle scales arranged along the swing direction of the pendulum assembly (20) to record the swing angle corresponding to the starting height of the pendulum assembly (20).

8. The pendulum impact testing device for a steering gear according to claim 1, It is characterized in that Also includes: The steering gear input end fixing component is screwed to the bottom test platform of the gantry frame (10) and is fixedly connected to the input end of the steering gear, and together with the steering gear fixing component (60) fixes the steering gear.

9. The pendulum impact test device for a steering gear according to claim 1, It is characterized in that The two sides of the gantry frame (10) are symmetrical structures, and the pendulum assembly (20), the lifting assembly (30), the pendulum locking assembly (40) and the impact bearing assembly (50) are all located between the two sides of the gantry frame (10).

10. The pendulum impact testing device for a steering gear according to claim 5, It is characterized in that The pendulum (21) is cylindrical, and the pendulum (21) and the impact force transmission mechanism (51) are coaxial when impacting; The swing trajectory of the pendulum (21), the axis of the impact force transmission mechanism (51) and the axis of the steering tie rod of the steering gear are coplanar.

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