An adjustable wheel heavy vehicle steering system detection device

Abstract

The utility model discloses an adjustable wheeled heavy -duty vehicle steering system detection device, include: long connecting block support platform is used for cooperation heavy -duty vehicle in the detection process removes, short connecting block support platform is set up in long connecting block support platform one side, is used for cooperation heavy -duty vehicle in the detection process removes. Through long connecting block support platform and short connecting block support platform cooperation, can adapt to different size wheel base length's heavy -duty vehicle, wheel support platform is spaced apart and set up between long connecting block support platform and short connecting block support platform, is used for cooperation heavy -duty vehicle and carries out steering detection. Advantageous effects lie in: adopt integrated and can be assembled platform, realize steering system multiple parameter comprehensive detection, single time dynamic equipment is completed, and it has high safety, strong adaptability and low security cost.

Description

Technical Field

[0001] This utility model relates to the field of vehicle testing technology, specifically to an adjustable wheeled heavy vehicle steering system testing device. Background Technology

[0002] Heavy vehicles possess strong mobility and off-road capabilities. During missions and training, the steering system parameters (wheel toe-in, steering angle, and steering wheel play) directly determine driving stability, safety, and comfort. Deviations in these parameters can lead to swerving, tire wear, difficulty in handling, and even accidents. To ensure driving safety, regular inspections and maintenance are necessary.

[0003] Testing revealed three major problems with existing detection technologies: First, it is inefficient. The four-wheel alignment machine is large, expensive and complicated to operate. The Michelin bracket (a common name for a simple wheel toe detection bracket in the field of military equipment maintenance) requires multiple measurements with a steel ruler and tape measure and repeated disassembly and assembly during use. Secondly, the error is significant. Wheel bias can easily cause deformation of the detection disc, and repeated manual readings accumulate measurement deviations. Third, the equipment is not systematic; existing tools can only detect single parameters and cannot perform comprehensive testing, resulting in cumbersome procedures and multiple reconfigurations. These problems severely restrict the efficiency and accuracy of equipment maintenance, necessitating the development of a comprehensive testing platform to achieve rapid and accurate testing. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable wheeled heavy vehicle steering system testing device to address the aforementioned problems. This device solves the technical problems of existing testing technologies, which severely restrict equipment maintenance efficiency and accuracy due to low efficiency (complex equipment / repeated disassembly and assembly), large errors (disc deformation / manual reading), and lack of a systematic approach (single parameter / multiple reassemblies). Among the various technical solutions provided by this invention, the preferred solution employs an integrated, modular platform to achieve comprehensive multi-parameter testing of the steering system, completed in a single reassembly, while possessing high safety, strong adaptability, and low maintenance costs. The technical effects are detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution: The adjustable wheeled heavy vehicle steering system testing device provided by this utility model includes: The long connecting block supports the platform, which is used to facilitate the movement of heavy vehicles during the inspection process; The short connecting block support platform is located on one side of the long connecting block support platform and is used to facilitate the movement of heavy vehicles during the inspection process.

[0006] By combining the long connecting block support platform with the short connecting block support platform, it can be adapted to heavy vehicles with different wheelbase lengths. Wheel support platforms are spaced between long connecting block support platforms and short connecting block support platforms to assist heavy vehicles in steering detection.

[0007] Preferably, the wheel support platform includes a movable disc, a rotating base, and a support roller. The rotating base is disposed on the movable disc, and the support roller is rotatably mounted on the rotating base via bearings.

[0008] Preferably, there are two support rollers arranged in a symmetrical structure, and a bearing storage groove for mounting the support rollers is provided above the rotating base.

[0009] Preferably, a transmission gear is provided on one side of the support roller.

[0010] Preferably, a ramp pad is provided at each of the long connecting block support platforms and the short connecting block support platforms located at both ends.

[0011] Preferably, the ends of the long connecting block support platform, the short connecting block support platform and the wheel support platform are provided with mutually cooperating connecting shaft seats.

[0012] The beneficial effects are: 1. Highly comprehensive. The integrated wheel support platform allows for multi-parameter measurement of both steering and drive wheels, requiring only two people to complete all parameter measurements, resulting in a high degree of system integration.

[0013] 2. High safety. The equipment can complete the testing of all parameters of the steering system in a single trip onto the mobile platform, significantly reducing the frequency of use and avoiding the safety risks caused by frequent equipment movement.

[0014] 3. Good adaptability. It adopts a modular structure, which can be assembled on-site according to the model of the work equipment to be tested. It is also easy to carry, and each part can be replaced individually, reducing maintenance costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This utility model is a three-dimensional structural view. Figure 1 ; Figure 2This utility model is a three-dimensional structural view. Figure 2 ; Figure 3 This utility model is a three-dimensional structural view. Figure 3 ; Figure 4 This is an enlarged structural view of the wheel support platform of this utility model.

[0017] The annotations in the attached figures are explained as follows: 1. Sloping mat; 2. Short connecting block support platform; 3. Long connecting block support platform; 4. Wheel support platform; 401. Rotating base; 402. Bearing; 403. Support roller; 404. Transmission gear; 405. Bearing storage slot; 406. Movable disc; 407. Matching pointer; 408. Central shaft; 5. Connecting shaft seat. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] See Figures 1-4 As shown, this utility model provides an adjustable wheeled heavy vehicle steering system testing device, comprising: The long connecting block support platform 3 is used to assist heavy vehicles in moving during the inspection process. The long connecting block support platform 3 is composed of steel plates assembled and welded together. It has a rectangular structure and internal reinforcing ribs to ensure load-bearing capacity. The short connecting block support platform 2 is located on one side of the long connecting block support platform 3 and is used to facilitate the movement of heavy vehicles during the inspection process. Its structure is the same as that of the long connecting block support platform 3, except for the length. It should be noted that the long connecting block support platform 3 and the short connecting block support platform 2 have different dimensions and can be adjusted according to the dimensions of the heavy vehicle to be inspected. This ensures that the wheel support platform 4 can accurately correspond to the position of the heavy vehicle axle during the inspection process, thereby improving the inspection accuracy.

[0020] By combining the long connecting block support platform 3 with the short connecting block support platform 2, it can be adapted to heavy vehicles with different wheelbase lengths. Wheel support platform 4 is spaced between long connecting block support platform 3 and short connecting block support platform 2. It is used to assist heavy vehicles in steering inspection. Currently, most commonly used work equipment adopts a four-axle eight-wheel structure design. During maintenance, the relevant positions of long connecting block support platform 3, short connecting block support platform 2 and wheel support platform 4 can be adjusted according to the axle positioning as needed to adapt to different work vehicle models and improve the product's adaptability.

[0021] In another embodiment, the wheel support platform 4 includes a movable disc 406, a rotating base 401, and a support roller 403. The rotating base 401 is disposed on the movable disc 406, and the support roller 403 is rotatably mounted on the rotating base 401 via a bearing 402. A steel plate for support is disposed below the movable disc 406, and the steel plate is in contact with the ground. The movable disc 406 is connected to the steel plate via a thrust bearing 402. The rotating base 401 is fixedly mounted above the thrust bearing 402, and a [missing information - likely a design feature] is provided on the outer wall of the rotating base 401. The rotating base 401 has a pointer and a rotation scale marked on the steel plate below it. The rotating base 401 can rotate freely through the thrust bearing 402 to adjust the angle with the wheel and determine the maximum steering angle of the current testing equipment. The support roller 403 is used to contact the wheel surface and provide support. In addition, the rotating base 401 can be provided with positioning holes, and the steel plate has through holes corresponding to the positions of the positioning holes. During testing, bolts are inserted into the two holes for positioning, which can limit the position of the rotating base 401 to facilitate equipment testing.

[0022] In another embodiment, there are two support rollers 403, which are arranged in a symmetrical structure. When the working equipment wheel drives between the two support rollers 403, the wheel surface can contact the two support rollers 403 respectively to achieve support. A bearing storage groove 405 is provided above the rotating base 401 to match the support rollers 403. The size of the storage groove matches the bearing 402, which is convenient for positioning during installation.

[0023] In another embodiment, a transmission gear 404 is provided on one side of the support roller 403. The transmission gear 404 is fixedly connected to the support roller 403 by a spline. During maintenance, the ratchet rocker arm can be positioned and meshed with the transmission gear 404 to provide driving force, thereby driving the roller group to rotate synchronously, so as to facilitate maintenance.

[0024] In another embodiment, a ramp pad 1 is provided at each of the long connecting block support platform 3 and the short connecting block support platform 2 located at both ends. The ramp pad 1 is located at both ends of the device to facilitate heavy vehicles to drive onto the detection device. The angle of the ramp pad 1 does not exceed degrees.

[0025] In another embodiment, the ends of the long connecting block support platform 3, the short connecting block support platform 2, and the wheel support platform 4 are provided with mutually cooperating connecting axle seats 5. In order to reduce the installation difficulty, the connecting axle seats 5 are all designed as axle seats. The connecting axle seats 5 are hollow circular hole structures, respectively arranged at both ends of the long connecting block support platform 3, the short connecting block support platform 2, and the wheel support platform 4. During installation, the holes of the connecting axle seats 5 on different platforms are aligned and the positioning bolts are inserted to achieve connection, avoiding mismatch when the working equipment drives into the equipment.

[0026] During installation, the operator pre-designs and adapts the equipment according to the model of the work equipment to be repaired, ensuring that each wheel support platform 4 corresponds to the position of the axle of the work equipment. Then, the connecting axle seats 5 between each platform are positioned and assembled, and bolts are inserted for fixing to complete the installation of the equipment. During testing, the assembled equipment is arranged into two wheel axles on a flat surface according to the wheel positions of the equipment being tested. The heavy vehicle is driven onto the equipment, and after all the wheels are in the equipment, triangular blocks are inserted in front of and behind the rear axle wheels. Then the brakes are released for testing.

[0027] The main testing aspects are as follows: 1. Toe-in test. Taking the X heavy vehicle test as an example: The equipment consists of four sets of axles, namely I, II, III and IV. During the test, distinguish the wheels of axles I and II, and install a fixed magnetic seat on the fixed nut plane at the center of each wheel. Adjust the connecting rod and clamp so that the pointer contacts the rear side of the wheel rim at the same height as the center of the wheel hub. Fix the inclinometer on the vertically downward iron plate, and adjust the clamp so that the inclinometer projects a linear laser vertically downward. Insert a telescopic ruler behind the wheels of axles I and II to the laser projection position, aligning one side with the scale of the telescopic ruler, and record the laser position scale value A on the other side; retract the telescopic ruler, start the equipment, and use the X drive mode to rotate the wheels of axles I, II, and III forward by approximately °. Then, use the ratchet handle to rotate the rollers 4 of the wheel support platform of axles I and II to rotate the wheels to the ° position, and then use the telescopic ruler to measure the value B on the front side of the wheel rim; subtract the value B from the value A measured on axles I and II respectively to obtain the toe-in values ​​of axles I and II; due to the elevated design, the wheel height of the working equipment is increased, reducing the difficulty of maintenance.

[0028] 2. Steering angle test: This test is mainly conducted on the front wheels responsible for steering. First, adjust the pointer scale on the front wheel support platform. The driver gets in the vehicle and turns the steering wheel to make the wheels of the I and II axles turn left and right, which drives the disc of the front wheel support platform to rotate. When the rotation reaches the maximum position, the left and right steering angles of each wheel are recorded by the testing personnel. During the test, the wheel is in contact with the support roller 403. As the wheel rotates, it can drive the rotating base 401 to rotate together, thus realizing the steering angle test.

[0029] 3. Tire and wheel well clearance inspection for Axles I and II. While inspecting the steering angle, personnel first use a mm feeler gauge to measure the clearance. If it passes, a thin gauge is added for detailed clearance measurement. If it fails, adjustments are needed before re-inspection. This part is the same as the first point, but with a raised design to increase the wheel height of the work equipment and reduce the difficulty of maintenance.

[0030] 4. Steering wheel play detection. First, use the locking device on the front wheel support platform rotating disc. This locking device can be fixed with bolts to prevent it from rotating with the steering wheel when turning. Then, fix the steering wheel play detector on the steering wheel and input the steering wheel radius. The operator should turn the steering wheel gently until significant resistance is encountered and then stop. Record the values ​​on the left and right respectively. The sum of the two values ​​is the steering wheel play.

[0031] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An adjustable wheeled heavy vehicle steering system testing device, characterized in that: include: The long connecting block support platform (3) is used to facilitate the movement of heavy vehicles during the inspection process; The short connecting block support platform (2) is set on one side of the long connecting block support platform (3) to facilitate the movement of heavy vehicles during the inspection process; By combining the long connecting block support platform (3) with the short connecting block support platform (2), it can be adapted to heavy vehicles with different wheelbase lengths; The wheel support platform (4) is spaced between the long connecting block support platform (3) and the short connecting block support platform (2) to assist heavy vehicles in steering detection.

2. The adjustable wheeled heavy vehicle steering system testing device according to claim 1, characterized in that: The wheel support platform (4) includes a movable disc (406), a rotating base (401), and a support roller (403). The rotating base (401) is mounted on the movable disc (406), and the support roller (403) is rotatably mounted on the rotating base (401) via a bearing (402).

3. The adjustable wheeled heavy vehicle steering system testing device according to claim 2, characterized in that: There are two support rollers (403) and they are arranged in a symmetrical structure. A bearing storage groove (405) is provided above the rotating base (401) to cooperate with the support rollers (403).

4. The adjustable wheeled heavy vehicle steering system testing device according to claim 2, characterized in that: A transmission gear (404) is provided on one side of the support roller (403).

5. The adjustable wheeled heavy vehicle steering system testing device according to claim 1, characterized in that: A ramp pad (1) is provided at each of the long connecting block support platform (3) and the short connecting block support platform (2) located at both ends.

6. The adjustable wheeled heavy vehicle steering system testing device according to claim 1, characterized in that: The ends of the long connecting block support platform (3), the short connecting block support platform (2) and the wheel support platform (4) are provided with mutually cooperating connecting axle seats (5).

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