A heavy-load vehicle steering test device

Abstract

The present invention belongs to the technical field of vehicle steering equipment performance testing, and specifically relates to a heavy-duty vehicle steering test device. The present invention provides a heavy-duty vehicle steering test device, which aims to solve the problem in the prior art that the test bench of the heavy-duty vehicle steering test device is fixed, resulting in low steering equipment test accuracy. A heavy-duty vehicle steering test device, comprising a mounting platform for mounting a steering device and a support seat for supporting the mounting platform, the mounting platform being fixed on the support seat by elastic support members, the elastic support members being evenly distributed between the mounting platform and the support seat; a driving mechanism for driving the mounting platform to vibrate relative to the support seat is provided on the support seat, and by providing a first driving member, a second driving member and a traction wire, a vibration condition closer to the real one can be obtained when the steering device is tested, thereby improving the test accuracy of the steering device.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle steering equipment performance testing, and in particular relates to a heavy-load vehicle steering testing device. Background Art

[0002] Steering systems are critical components of heavy-duty vehicles, and their reliability is one of the most fundamental aspects of vehicle performance. Currently, steering system testing primarily involves road testing, proving ground testing, and indoor testing. Road and proving ground testing require long cycles, suffer from poor repeatability, and are often dangerous. Indoor testing, however, offers advantages such as shorter cycles, better repeatability, and greater safety and reliability. Consequently, it enjoys strong demand and broad application prospects in steering system testing.

[0003] Currently, indoor testing of steering equipment often uses a fixed loading method, where newly manufactured steering equipment is directly mounted on a test bench, which remains stationary during testing. However, heavy-loaded vehicles inevitably generate various vibrations during actual use. Therefore, using a stationary test bench for steering testing results in low test accuracy. Summary of the Invention

[0004] The present invention provides a heavy-load vehicle steering test device, which aims to solve the problem in the prior art that the test bench of the heavy-load vehicle steering test device is fixed, resulting in low steering equipment test accuracy.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A heavy-load vehicle steering test device comprises a mounting platform for mounting a steering device and a support base for supporting the mounting platform, wherein the mounting platform is fixed to the support base via elastic support members, and the elastic support members are evenly distributed between the mounting platform and the support base;

[0007] The support base is provided with a driving mechanism for driving the mounting platform to vibrate relative to the support base, the driving mechanism comprising a first driving member rotatably provided on the support base and a second driving member slidably provided on the support base, the first driving member and the second driving member attract each other, and the mounting platform is fixedly connected to the second driving member via a traction wire;

[0008] There are at least two first driving members and at least two second driving members. The number of the first driving members is equal to that of the second driving members, and the magnitude of the attraction exerted by each first driving member on the second driving member is different. The mounting platform is cylindrical in shape, and the first driving members and the second driving members are evenly arranged along the circumferential direction of the mounting platform.

[0009] A further improved solution: a mounting seat is provided on the mounting platform, the steering device is fixed to the mounting platform via the mounting seat, and a support plate for supporting the steering device is also provided on the mounting platform.

[0010] Based on the above technical solution, the provision of a mounting seat facilitates assembly of the steering device to the mounting platform. The provision of a support plate primarily serves to support the steering device, making the method of securing the steering device to the mounting platform more similar to the method of actual installation in a vehicle.

[0011] A further improved solution: the support plate includes a plate body and a cover body arranged at the upper end of the plate body, and both the plate body and the cover body are provided with grooves. The grooves on the plate body cooperate with the grooves on the cover body to form a support groove that cooperates with the steering device, and the cover body is fixed to the plate body by bolts.

[0012] Based on the above technical solution: by providing a plate body and a cover body, the plate body and the cover body cooperate to conveniently support the steering device, thereby making it easy to assemble the steering device with the support plate.

[0013] A further improved solution: the mounting platform is further provided with fixing ears for fixing the traction wire, the number of the fixing ears is the same as the number of the first driving members, and the fixing ears are evenly arranged along the circumferential direction of the mounting platform.

[0014] Based on the above technical solution: by providing fixing ears, the traction wire can be easily fixed to the installation platform.

[0015] A further improved solution: the fixing ear is provided with a through hole for passing a traction wire, one end of the traction wire is tied to the fixing ear, and the fixing ear and the mounting platform are an integrated structure.

[0016] Based on the above technical solution: by setting a through hole, the traction wire can pass through the through hole and then be fixed, so that the connection strength between the traction wire and the fixing ear is high, and during long-term use, the traction wire and the fixing ear are not easy to separate.

[0017] A further improved solution: the support seat includes an upper plate, a lower plate and a connecting column arranged between the upper plate and the lower plate. The upper plate, the lower plate and the connecting column are an integrated structure, and the upper plate is provided with a guide hole for guiding the traction wire.

[0018] Based on the above technical solution: by providing a guide hole on the upper plate, the traction wire is not easily misplaced, and two adjacent traction wires are not easily entangled.

[0019] A further improved solution: an assembly hole for guiding the second driving member is provided on the lower plate, the second driving member is slidably set in the assembly hole, and the traction wire passes through the guide hole and is fixed to the upper end of the second driving member.

[0020] Based on the above technical solution: by providing the assembly hole, the displacement accuracy of the second driving member is high, so that the second driving member can effectively apply force to the mounting platform through the traction wire.

[0021] A further improved solution: the elastic support member is a spring, a fixing column for fixing the elastic support member is provided on the upper plate, the lower end of the elastic support member is sleeved on the fixing column, and the upper end of the elastic support member is fixed on the mounting platform.

[0022] Based on the above technical solution, the elastic support member has a high connection strength with the upper plate. The fixed column also has the function of guiding the elastic support member. During long-term use, the elastic support member is not prone to plastic deformation.

[0023] Further improved solution: the support seat also includes a bracket, the bracket is fixedly connected to the lower plate by bolts, a motor is also provided on the bracket, a disk body is provided on the output shaft of the motor, the first driving member is fixed on the disk body, the motor is fixed to the bracket through a connecting frame, the connecting frame and the bracket are an integrated structure, a receiving groove for accommodating the first driving member is provided on the disk body, and the first driving member is bonded to the receiving groove.

[0024] Based on the above technical solution: by arranging the motor and the disk, the first driving member is easy to assemble, and the first driving member can be rotated conveniently.

[0025] A further improved solution: the first driving member is a magnet, the second driving member is an armature attracted to the first driving member, and a buffer layer is provided on the first driving member.

[0026] Based on the above technical solution: by providing a buffer layer, the buffer layer is mainly used to prevent the second driving member from being damaged by collision. The buffer layer can be made of a rubber layer.

[0027] The beneficial effects of the present invention are:

[0028] During actual application, the steering device is first installed on the installation platform, and then loaded. The specific test method of the steering device refers to the existing technology. Different test methods require different test steps or equipment.

[0029] During the testing of the steering device, the first driving member is rotated. During the rotation, the first driving member attracts different second driving members respectively, causing the second driving member to slide toward the first driving member. During the sliding process toward the first driving member, the second driving member pulls the mounting platform through the traction wire. After the mounting platform is subjected to force, it overcomes the force of the elastic support member and tilts. The first driving member continues to rotate, and the first driving member and the second driving member are staggered. At this time, the second driving member returns to its original state under the elastic force of the elastic support member, and at this time, the mounting platform also returns to its original state.

[0030] The first drive member rotates continuously, causing the mounting platform to continuously tilt and restore via the second drive member and the traction wire, creating a vibration effect. Furthermore, because there are multiple first drive members, each applying a different force to the second drive member, the same second drive member experiences different forces during its rotation. This causes the mounting plate to experience different vibration amplitudes in the direction of the same second drive member, further bringing the mounting platform's vibration pattern closer to that experienced during normal use of the steering system.

[0031] By providing the first driving member, the second driving member and the traction wire, a vibration working condition closer to reality can be obtained when the steering device is tested, thereby improving the test accuracy of the steering device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For users of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without any creative work.

[0033] Figure 1 It is a front view of a heavy-load vehicle steering test device.

[0034] Figure 2 It is a schematic diagram of a heavy-load vehicle steering test device.

[0035] Figure 3 It is an exploded view of a heavy-load vehicle steering test device in the first direction.

[0036] Figure 4 It is an exploded view of the second direction of a heavy-load vehicle steering test device.

[0037] Figure 5 This is a schematic diagram of the installation position of the motor and the connecting frame.

[0038] Description of the numbers in the figure:

[0039] 1-mounting platform; 11-mounting seat; 12-support plate; 13-plate body; 14-cover body; 15-fixing ear; 16-through hole; 2-support seat; 21-upper plate; 211-guide hole; 212-fixing column; 22-lower plate; 23-connecting column; 3-elastic support member; 4-driving mechanism; 41-first driving member; 42-second driving member; 43-traction wire; 5-bracket; 51-connecting frame; 6-motor; 61-disk body. DETAILED DESCRIPTION

[0040] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by users of this technology in the field without creative work are within the scope of protection of the present invention.

[0041] Example 1:

[0042] See Figures 1 to 5 A heavy-duty vehicle steering test device comprises a mounting platform 1 for mounting a steering device and a support base 2 for supporting the mounting platform 1. The mounting platform 1 is fixed to the support base 2 by elastic support members 3. The elastic support members 3 are evenly distributed between the mounting platform 1 and the support base 2.

[0043] The support base 2 is provided with a driving mechanism 4 for driving the mounting platform 1 to vibrate relative to the support base 2. The driving mechanism 4 includes a first driving member 41 rotatably provided on the support base 2 and a second driving member 42 slidably provided on the support base 2. The first driving member 41 and the second driving member 42 attract each other, and the mounting platform 1 is fixedly connected to the second driving member 42 via a traction wire 43.

[0044] There are at least two first driving members 41 and at least two second driving members 42. The number of the first driving members 41 and the second driving members 42 are equal, and the magnitude of the attraction exerted by each first driving member 41 on the second driving member 42 is different; the shape of the mounting platform 1 is cylindrical, and the first driving members 41 and the second driving members 42 are evenly arranged along the circumferential direction of the mounting platform 1.

[0045] The traction wire 43 can be made of steel wire or a material with small elastic deformation.

[0046] Example 2:

[0047] In order to make it easy to assemble the steering device with the mounting platform 1, based on the above embodiment: a mounting seat 11 is provided on the mounting platform 1, and the steering device is fixed on the mounting platform 1 through the mounting seat 11, and a support plate 12 for supporting the steering device is also provided on the mounting platform 1.

[0048] The support plate 12 includes a plate body 13 and a cover body 14 arranged at the upper end of the plate body 13. Both the plate body 13 and the cover body 14 are provided with grooves. The grooves on the plate body 13 cooperate with the grooves on the cover body 14 to form a support groove that cooperates with the steering device. The cover body 14 is fixed to the plate body 13 by bolts.

[0049] The vertical plate is an integrated structure with the mounting platform 1. Alternatively, the vertical plate can also be fixed to the mounting platform 1 by screws.

[0050] Example 3:

[0051] In order to optimize the performance of the driving mechanism 4 and make the driving mechanism 4 easy to maintain or assemble, based on the above embodiment: the mounting platform 1 is also provided with fixing ears 15 for fixing the traction wire 43, and the number of the fixing ears 15 is the same as the number of the first driving members 41, and the fixing ears 15 are evenly arranged along the circumferential direction of the mounting platform 1.

[0052] The fixing ear 15 is provided with a through hole 16 for passing a traction wire 43 . One end of the traction wire 43 is tied to the fixing ear 15 . The fixing ear 15 and the mounting platform 1 are an integrated structure.

[0053] The support seat 2 includes an upper plate 21, a lower plate 22 and a connecting column 23 arranged between the upper plate 21 and the lower plate 22. The upper plate 21, the lower plate 22 and the connecting column 23 are an integrated structure. The upper plate 21 is provided with a guide hole 211 for guiding the traction wire 43.

[0054] The lower plate 22 is provided with an assembly hole for guiding the second driving member 42 . The second driving member 42 is slidably disposed in the assembly hole. The traction wire 43 passes through the guide hole 211 and is fixed to the upper end of the second driving member 42 .

[0055] The elastic support member 3 is a spring. A fixing column 212 for fixing the elastic support member 3 is provided on the upper plate 21. The lower end of the elastic support member 3 is sleeved on the fixing column 212, and the upper end of the elastic support member 3 is fixed on the mounting platform 1.

[0056] The support base 2 also includes a bracket 5, which is fixedly connected to the lower plate 22 via bolts. The bracket 5 is also provided with a motor 6, and a disk 61 is provided on the output shaft of the motor 6. The first driving member 41 is fixed to the disk 61. The motor 6 is fixed to the bracket 5 via a connecting frame 51. The connecting frame 51 and the bracket 5 are an integral structure. The disk 61 is provided with a receiving groove for accommodating the first driving member 41, and the first driving member 41 is bonded into the receiving groove. The motor 6 is fixed to the connecting frame 51 via screws.

[0057] The first driving member 41 is a magnet, the second driving member 42 is an armature attracted to the first driving member 41, and a buffer layer is provided on the first driving member 41. The buffer layer can be made of rubber or other elastically deformable materials.

[0058] The number of the first driving members 41 can be six, the number of the second driving members 42 can be six, and the number of the elastic supporting members 3 can also be six.

[0059] The following further describes a heavy-load vehicle steering test device provided by the present invention in combination with its working principle:

[0060] In actual application, the steering device is first installed on the installation platform 1, and then loaded onto the steering device. The specific test method of the steering device refers to the existing technology. Different test methods require different test steps or equipment.

[0061] During the test of the steering device, the first driving member 41 is rotated. During the rotation, the first driving member 41 attracts different second driving members 42 respectively, so that the second driving member 42 slides toward the first driving member 41. During the sliding process toward the first driving member 41, the second driving member 42 pulls the mounting platform 1 through the traction wire 43. After the mounting platform 1 is subjected to the force, it overcomes the force of the elastic support member 3 and tilts. The first driving member 41 continues to rotate, and the first driving member 41 and the second driving member 42 are staggered. At this time, the second driving member 42 returns to its original state under the elastic force of the elastic support member 3. At this time, the mounting platform 1 also returns to its original state.

[0062] The first drive member 41 rotates continuously, causing the mounting platform 1 to continuously tilt and recover through the second drive member 42 and the traction wire 43, creating a vibration effect. Furthermore, because there are multiple first drive members 41, and each first drive member 41 applies a different force to the second drive member 42, the same second drive member 42 experiences different forces during the rotation of the first drive member 41. This causes the mounting plate to experience different vibration amplitudes in the direction of the same second drive member 42, thereby making the vibration pattern of the mounting platform 1 more similar to the vibration pattern experienced by the steering device during normal use.

[0063] The present invention is not limited to the above-mentioned optional implementation methods. Under the premise of not conflicting with each other, the various solutions can be arbitrarily combined. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the scope of protection of the present invention.

Claims

1. A heavy-load vehicle steering test device, characterized by: It includes a mounting platform for mounting the steering device and a support base for supporting the mounting platform, wherein the mounting platform is fixed to the support base through elastic support members, and the elastic support members are evenly distributed between the mounting platform and the support base; The support base is provided with a driving mechanism for driving the mounting platform to vibrate relative to the support base, the driving mechanism comprising a first driving member rotatably provided on the support base and a second driving member slidably provided on the support base, the first driving member and the second driving member attract each other, and the mounting platform is fixedly connected to the second driving member via a traction wire; There are at least two first driving members and at least two second driving members. The number of the first driving members is equal to that of the second driving members, and the magnitude of the attraction exerted by each first driving member on the second driving member is different. The mounting platform is cylindrical in shape, and the first driving members and the second driving members are evenly arranged along the circumferential direction of the mounting platform.

2. A heavy-load vehicle steering test device according to claim 1, characterized in that: The mounting platform is provided with a mounting seat, and the steering device is fixed to the mounting platform through the mounting seat. The mounting platform is also provided with a support plate for supporting the steering device.

3. A heavy-load vehicle steering test device according to claim 2, characterized in that: The support plate includes a plate body and a cover body arranged at the upper end of the plate body. Both the plate body and the cover body are provided with grooves. The grooves on the plate body cooperate with the grooves on the cover body to form a support groove that cooperates with the steering device. The cover body is fixed to the plate body by bolts.

4. A heavy-load vehicle steering test device according to claim 3, characterized in that: The mounting platform is further provided with fixing ears for fixing the traction wire. The number of the fixing ears is the same as the number of the first driving members, and the fixing ears are evenly arranged along the circumferential direction of the mounting platform.

5. A heavy-load vehicle steering test device according to claim 4, characterized in that: The fixing ear is provided with a through hole for passing a traction wire, one end of the traction wire is tied to the fixing ear, and the fixing ear and the mounting platform are an integrated structure.

6. A heavy-load vehicle steering test device according to claim 5, characterized in that: The support seat includes an upper plate, a lower plate and a connecting column arranged between the upper plate and the lower plate. The upper plate, the lower plate and the connecting column are an integral structure. The upper plate is provided with a guide hole for guiding the traction wire.

7. A heavy-load vehicle steering test device according to claim 6, characterized in that: The lower plate is provided with an assembly hole for guiding the second driving member. The second driving member is slidably arranged in the assembly hole. The traction wire passes through the guide hole and is fixed to the upper end of the second driving member.

8. A heavy-load vehicle steering test device according to claim 7, characterized in that: The elastic support member is a spring, and a fixing column for fixing the elastic support member is provided on the upper plate. The lower end of the elastic support member is sleeved on the fixing column, and the upper end of the elastic support member is fixed on the mounting platform.

9. The heavy-load vehicle steering test device according to claim 8, characterized in that: The support seat also includes a bracket, which is fixedly connected to the lower plate by bolts. A motor is also provided on the bracket, and a disk is provided on the output shaft of the motor. The first driving member is fixed on the disk, and the motor is fixed to the bracket through a connecting frame. The connecting frame and the bracket are an integrated structure. A receiving groove for accommodating the first driving member is provided on the disk, and the first driving member is bonded to the receiving groove.

10. A heavy-load vehicle steering test device according to claim 9, characterized in that: The first driving member is a magnet, the second driving member is an armature attracted to the first driving member, and a buffer layer is provided on the first driving member.

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