An auxiliary device for testing the parking brake performance of a motor vehicle

Abstract

This utility model discloses an auxiliary device for testing the parking brake performance of a motor vehicle, including a rectangular base with symmetrical vertical support columns at both ends. Reinforcing ribs are welded to the bottom inner side of each vertical support column and fixed to the base. A screw jack is located in the middle of the base, and sliding frames are fitted onto the vertical support columns. A transverse support beam is welded between the sliding frames, and the screw jack is vertically connected to the transverse support beam. A connecting structure consisting of a reinforcing block and a connecting ring is located on one side of the transverse support beam. The connecting ring is used to connect a standard force gauge and a force sensor. This device improves load-bearing strength through reinforcing ribs and achieves precise lifting adjustment through the screw jack, ensuring that the standard force gauge and the force sensor being calibrated are horizontally coaxial, guaranteeing accurate force value transmission, avoiding calibration interruptions, improving calibration accuracy and work efficiency, and stably bearing the calibration force value required for 2300 daN.

Description

Technical Field

[0001] This utility model relates to the field of calibration auxiliary equipment technology, and in particular to an auxiliary device for testing the parking brake performance of a motor vehicle. Background Technology

[0002] In the calibration of motor vehicle parking brake performance testing devices, the core requirement is to ensure that the standard force gauge and the force sensor of the parking brake performance testing device being calibrated are on the same horizontal line. This ensures the accuracy of force value transmission and, consequently, the reliability of the calibration results. However, in actual calibration, existing calibration auxiliary devices have significant technical defects: on the one hand, their load-bearing structure is not strong enough to stably support the calibration force of 2300 daN; on the other hand, the load-bearing structure is prone to deformation during the stress process, which not only further disrupts the horizontal coaxiality of the standard force gauge and the force sensor being calibrated, but may also cause the calibration process to be interrupted, seriously affecting calibration accuracy and work efficiency. Utility Model Content

[0003] The present invention aims to solve the problems mentioned in the background art by providing an auxiliary device for testing the parking brake performance of a motor vehicle, thereby solving the above-mentioned technical problems.

[0004] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: an auxiliary device for testing the parking brake performance of a motor vehicle, comprising a base, the base being rectangular; vertical support columns are symmetrically positioned at both ends of the upper plate of the base; a screw jack is positioned in the middle of the upper plate of the base; sliding frames are fitted onto each of the vertical support columns; a transverse support beam is welded between the sliding frames; the screw jack is vertically connected to the transverse support beam; reinforcing ribs are welded to the bottom inner side of each vertical support column and fixedly connected to the base; a connecting structure is provided on one side of the transverse support beam.

[0005] Furthermore, the screw jack includes a handwheel and a screw; a threaded through hole is provided in the middle of the transverse bearing beam; the screw is threadedly connected to the threaded through hole; the screw is controlled to rotate by the handwheel, so that the transverse bearing beam moves up and down on the vertical bearing column through the sliding frames at both ends under the rotation of the screw.

[0006] Furthermore, the connection structure includes a reinforcing block and a connecting ring; the reinforcing block is welded to the middle position of one side plate of the transverse load-bearing beam; a connecting ring is vertically welded to one side plate of the reinforcing block; one end of the connecting ring is sequentially connected to a standard force gauge and a force sensor.

[0007] Compared with the prior art, this utility model has the following advantages: This invention provides a stable support foundation through a rectangular base. Symmetrical vertical support columns at both ends, combined with reinforcing ribs on the inner bottom, significantly enhance the overall strength of the support structure, enabling it to stably bear the calibration force of 2300 daN and effectively prevent deformation under stress. The welded structure of the sliding frame and the transverse support beam, combined with the transmission design of the screw jack, allows for smooth raising and lowering of the transverse support beam by controlling the screw rotation with a handwheel. This facilitates precise adjustment of the connection structure's height, ensuring that the standard force gauge and the force sensor being calibrated are always on the same horizontal line, guaranteeing the accuracy of force transmission. The connection structure formed by the reinforcing blocks and connecting rings on the transverse support beam enhances the load-bearing capacity and stability of the connection points, preventing breakage or displacement, thus ensuring smooth calibration work and improving calibration accuracy and efficiency. Attached Figure Description

[0008] Figure 1 This is a front view schematic diagram of the overall structure of this utility model; Figure 2 This is a rear view schematic diagram of the overall structure of this utility model.

[0009] Legend: 1-Base, 2-Vertical support column, 3-Sliding frame, 4-Horizontal support beam, 5-Reinforcing rib plate, 6-Screw jack, 7-Handwheel, 8-Screw, 9-Reinforcing block, 10-Connecting ring. Detailed Implementation

[0010] The following will refer to the appendix in the embodiments of this utility model. Figure 1 The technical solution in this utility model embodiment is described clearly and completely as follows: An auxiliary device for testing the parking brake performance of a motor vehicle includes a base 1, which is rectangular in shape; vertical support columns 2 are symmetrically positioned at both ends of the upper plate of the base 1; a screw jack 6 is positioned in the middle of the upper plate of the base 1; sliding frames 3 are sleeved on each of the vertical support columns 2; transverse support beams 4 are welded horizontally between the sliding frames 3; the screw jack 6 is vertically connected to the transverse support beams 4; reinforcing ribs 5 are welded to the bottom inner side of each of the vertical support columns 2 for fixed connection with the base 1; a connecting structure is provided on one side of the transverse support beam 4.

[0011] Specifically, the screw jack 6 includes a handwheel 7 and a screw 8; a threaded through hole is provided in the middle of the transverse bearing beam 4; the screw 8 is threadedly connected to the threaded through hole; the screw 8 is controlled to rotate by the handwheel 7, so that the transverse bearing beam 4 moves up and down on the vertical bearing column 2 through the sliding frames 3 at both ends under the rotation of the screw 8. The lifting and lowering adjustment of the transverse bearing beam 4 can be realized by manually turning the handwheel 7, without the need for complex power equipment, and the transmission method of the screw 8 can ensure that the lifting process is smooth and accurate, and it is easy to quickly adjust the connection structure to the required height.

[0012] Specifically, the connection structure includes a reinforcing block 9 and a connecting ring 10; the reinforcing block 9 is welded to the middle of one side of the transverse load-bearing beam 4; the connecting ring 10 is vertically welded to one side of the reinforcing block 9; one end of the connecting ring 10 is sequentially connected to a standard force gauge and a force sensor. The reinforcing block 9 of this connection structure can enhance the connection strength between the transverse load-bearing beam 4 and the connecting ring 10, preventing deformation or breakage of the connection part when under stress. The vertically welded connecting ring 10 can ensure the accurate connection direction of the standard force gauge and the force sensor, ensuring the straightness of the force value transmission path and further improving the calibration accuracy.

[0013] During use, place the base 1 stably on a level working surface, ensuring that the base 1 is completely in contact with the ground. The rectangular structure of the base 1 provides stable support, preventing the device from shaking during calibration. Securely connect one end of the standard force gauge to the connecting ring 10 on the transverse bearing beam 4, ensuring a firm and secure connection. Then connect the other end of the standard force gauge to the force sensor of the parking brake performance testing device being calibrated, ensuring the connection points are aligned. Based on the actual height of the force sensor being calibrated, control the rotation of the lead screw 8 by turning the handwheel 7. Since the lead screw 8 is threaded into the threaded through-hole in the middle of the transverse bearing beam 4, when the lead screw 8 rotates… The transverse bearing beam 4 will move smoothly up and down on the vertical bearing column 2 via the sliding frames 3 at both ends until the connecting ring 10, the standard force gauge and the force sensor being calibrated are on the same horizontal line. At this time, stop turning the handwheel 7 to complete the height calibration, start the parking brake performance test device being calibrated, and start the calibration work. During the force value transmission process, the reinforcing rib plate 5 on the bottom inner side of the vertical bearing column 2 will enhance the connection strength between the vertical bearing column 2 and the base 1 to avoid structural deformation under stress. The reinforcing block 9 further strengthens the connection between the connecting ring 10 and the transverse bearing beam 4 to ensure that the entire device can stably bear the calibration force value of 2300 daN and ensure that the calibration process is continuous and accurate.

[0014] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A device for assisting a motor vehicle parking brake performance testing device, comprising a base (1), characterized in that: The base (1) is rectangular; vertical support columns (2) are provided at both ends of the upper plate of the base (1); a screw jack (6) is provided in the middle of the upper plate of the base (1); sliding frames (3) are fitted on each of the vertical support columns (2); transverse support beams (4) are welded between the sliding frames (3); the screw jack (6) is connected to the transverse support beams (4) in a lifting connection; reinforcing ribs (5) are welded to the bottom of the inner side of the vertical support columns (2) and fixedly connected to the base (1); a connecting structure is provided on one side of the transverse support beams (4).

2. The auxiliary device of the motor vehicle parking brake performance testing device according to claim 1, characterized in that: The screw jack (6) includes a handwheel (7) and a screw (8); the transverse bearing beam (4) has a threaded through hole in the middle; the threaded through hole is threadedly connected to the screw (8); the screw (8) is controlled to rotate by the handwheel (7), so that the transverse bearing beam (4) moves up and down on the vertical bearing column (2) through the sliding frames (3) at both ends under the rotation of the screw (8).

3. The auxiliary device of claim 1, wherein: The connection structure includes a reinforcing block (9) and a connecting ring (10); the reinforcing block (9) is welded to the middle of one side of the transverse load-bearing beam (4); the connecting ring (10) is vertically welded to one side of the reinforcing block (9); one end of the connecting ring (10) is connected to a standard force gauge and a force sensor in sequence.

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