Pedal test bed meeting requirements of brake booster products

Abstract

The utility model relates to a pedal test bench satisfying a brake booster product, and belongs to a test device in the technical field of automobile brake. The seat angle adjusting mechanism is mounted in a seat mounting seat at the rear end of the rack, the rear end of the seat is arranged on the seat angle adjusting mechanism, the front end of the seat is rotatably connected with the rack through a hinge, the product mounting plate is fixedly connected to a product mounting plate support of the rack, and the rack angle adjusting mechanism is fixedly connected to the front of a front end rack leg of the rack. The pedal bottom plate is fixedly connected with the lower portion of the pedal of the rack through the long-strip-shaped positioning holes. The pedal test device has the advantages that the structure is novel, the pedal test of a traditional booster product can be carried out, the pedal test of an electric control product can also be carried out, and the whole vehicle dismounting workload is reduced. And meanwhile, the rack is convenient to move and can be moved to different test sites according to test requirements, so that the working efficiency is improved, foot feeling analysis of driving habits of different persons is also realized, and the product design is optimized.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile brake testing equipment, in particular to a pedal testing bench that meets the requirements of brake booster products. Background Art

[0002] With the rapid development of the automotive industry, the traditional mechanical structure brake booster products and electronic control products are in a critical period of transformation. Various new brake booster products are gradually coming out and the products are gradually being updated. The completed sample products can test the various performance pressure curves of the products on the performance test bench, but cannot test the actual brake pedal feel. This is also a key indicator of the transformation between electronic control products and traditional mechanical structure products. Before the electronic control products are assembled on the vehicle, the pedal feel test needs to be repeatedly carried out. While passing the pedal feel test, the pressure buildup of the product can also be tested at the same time. In order to reduce the workload of disassembling and assembling the booster on the vehicle, while also meeting the product vehicle assembly angle, it is also necessary to meet the test needs of personnel stepping on the pedal to perform noise analysis in the noise laboratory. Therefore, it is necessary to design a pedal test bench that meets the requirements of brake booster products. Summary of the Invention

[0003] The utility model provides a pedal test bench for a brake booster product, so as to meet the need of performing a pedal test on the brake booster product.

[0004] The technical solution adopted by the utility model is that it includes a platform, a seat, a product mounting plate, a platform angle adjustment mechanism, a seat angle adjustment mechanism, a footrest base and a hinge, wherein the seat angle adjustment mechanism is installed in the seat mounting seat at the rear end of the platform, the rear end of the seat is placed on the seat angle adjustment mechanism, and the front end is rotatably connected to the platform through a hinge, the product mounting plate is fixedly connected to the product mounting plate bracket of the platform, the platform angle adjustment mechanism is fixedly connected to the front of the front end frame leg of the platform, and the footrest base is fixedly connected to the bottom of the pedal of the platform through a long positioning hole.

[0005] The stand includes a frame, frame legs, a seat mounting seat and a product mounting plate bracket, wherein the frame legs are fixedly connected to the bottom of the frame, the product mounting plate bracket is fixedly connected to the top of the frame, and the seat mounting seat is fixedly connected to the rear part of the top of the frame.

[0006] The connection between the frame legs and the frame body is fixedly connected to a reinforcing plate 1.

[0007] The connection between the product mounting plate bracket and the frame is fixedly connected to the reinforcing plate 2.

[0008] The platform angle adjustment mechanism includes a screw, a screw sleeve and a screw base, wherein the screw sleeve is welded in front of the front leg of the platform, the lower end of the screw is fixedly connected to the screw base, and the upper end is processed with an external hexagon.

[0009] The screw is marked with 3-7 degree scale lines.

[0010] The seat angle adjustment mechanism includes a rotating block, a round-head angle adjustment screw, a screw seat, and a long screw. The round-head angle adjustment screw is threadedly connected to the rotating block and passes through it, and then cooperates with the light hole in the screw seat. The top of the screw seat is fixedly connected to the bottom of the seat. The smooth rod parts of the two long screws pass through the seat mounting seat respectively, and the threaded parts at their front ends are threadedly connected to the rotating block.

[0011] The lower end of the round head angle adjustment screw is processed into an external hexagon.

[0012] The advantages of this utility model are its novel structure. It uses screws and sleeves to adjust the angle of the whole test stand. According to the marked angle lines, the required assembly angle can be adjusted at any time. It uses a vehicle seat assembly plus a seat horizontal angle adjustment mechanism and a hinge fixing method. In this way, the horizontal angle and front-to-back distance of the seat can be adjusted to simulate the state of the whole vehicle. The installed footrest can be adjusted in height according to the installation size of the brake pedal of the whole vehicle, which can be close to the driving feeling of the whole vehicle. This utility model can carry out pedal tests of traditional booster products as well as pedal tests of electronic control products, reducing the workload of disassembling and assembling the whole vehicle. At the same time, the test stand is easy to move and can be moved to different test sites according to the test requirements. For example, it can be moved to a noise laboratory for noise analysis tests, which better meets the pedal test requirements of the product, improves work efficiency, and also realizes the foot feel analysis of different people's driving habits, thereby optimizing product design. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a right side view of the utility model;

[0015] Figure 3 It is a structural diagram of the utility model stand;

[0016] Figure 4 This is a structural diagram of the platform angle adjustment mechanism of the utility model;

[0017] Figure 5 This is a structural diagram of the utility model seat, seat angle adjustment mechanism and hinge;

[0018] Figure 6 This is a structural diagram of the seat angle adjustment mechanism of the utility model;

[0019] Figure 7 It is a structural diagram of the hinge of the utility model;

[0020] Figure 8 It is a structural schematic diagram of the footrest of the utility model. DETAILED DESCRIPTION

[0021] It includes a platform 1, a seat 2, a product mounting plate 3, a platform angle adjustment mechanism 4, a seat angle adjustment mechanism 5, a footrest base 6 and a hinge 7, wherein the seat angle adjustment mechanism 5 is installed in the seat mounting seat 103 at the rear end of the platform 1, the rear end of the seat 2 is placed on the seat angle adjustment mechanism 5, and the front end is rotatably connected to the platform 1 through the hinge 7, the product mounting plate 3 is fixedly connected to the product mounting plate bracket 104 of the platform 1, the platform angle adjustment mechanism 4 is fixedly connected to the front of the front leg 102 of the platform 1, and the footrest base 6 is fixedly connected to the bottom of the pedal of the platform 1 through the long positioning hole 601.

[0022] The stand 1 includes a frame 101, frame legs 102, a seat mounting seat 103 and a product mounting plate bracket 104, wherein the frame legs 102 are fixedly connected to the bottom of the frame 101, the product mounting plate bracket 104 is fixedly connected to the top of the frame 101, and the seat mounting seat 103 is fixedly connected to the rear part of the top of the frame 101.

[0023] The connection between the frame legs 102 and the frame body 101 is fixedly connected to a reinforcing plate 105 .

[0024] The connection between the product mounting plate bracket 104 and the frame 101 is fixedly connected to the second reinforcing plate 106 .

[0025] The platform angle adjustment mechanism 4 includes a screw 401, a screw sleeve 402 and a screw base 403, wherein the screw sleeve 402 is welded in front of the front leg 102 of the platform 1, the lower end of the screw 401 is fixedly connected to the screw base 403, and the upper end is processed with an external hexagon.

[0026] The screw 401 is marked with lines from 3 degrees to 7 degrees.

[0027] The seat angle adjustment mechanism 5 includes a rotating block 501, a round-head angle adjustment screw 502, a screw seat 503, and a long screw 504. The round-head angle adjustment screw 502 is threadedly connected to the rotating block 501 and passes through it, and then cooperates with the light hole in the screw seat 503. The top of the screw seat 503 is fixedly connected to the bottom of the seat 2. The smooth rod parts of the two long screws 504 pass through the seat mounting seat 103 respectively, and the threaded parts at their front ends are threadedly connected to the rotating block 501.

[0028] The lower end of the round head angle adjustment screw 502 is processed into an external hexagon.

[0029] Test process:

[0030] Step 1: Select the corresponding product mounting plate 3 according to the product mounting hole size, and fix the mounting plate on the stand with bolts and nuts;

[0031] Step 2: Install the booster assembly 9 in front of the product mounting plate, install the corresponding pedal assembly 8 behind the product mounting plate, and fix the product and pedal to the mounting plate with nuts;

[0032] Step 3: Use a ratchet wrench to adjust the height of the screw 401 of the stand angle adjustment mechanism 4 according to the installation angle of the vehicle. The height is set to the corresponding angle scale position. The positioning scales of the two screws are consistent. In this way, the installation angle is adjusted. Then adjust the seat angle adjustment mechanism 5 to adjust the seat to the level. The specific adjustment method is as follows:

[0033] The seat 2 adopts the whole vehicle seat assembly, which is adjusted in the same way as the whole vehicle. It can slide back and forth and adjust the seat back angle. However, when the whole test stand adjusts the installation angle of the whole vehicle, the whole test stand is in a backward tilted state. In order to keep the test personnel's seat angle in a horizontal state, it is adjusted through the seat angle adjustment mechanism 5. The long screw and the seat mounting seat 103 are in a loose fit state. The rotating mechanism can be rotated on the test stand. Use a wrench to adjust the round head angle adjustment screw 502. The upper end of the screw is matched with the screw seat 503. A light hole with a depth of 10mm is processed in the seat to prevent the screw from offsetting from the seat when adjusting the seat angle. During the screw angle adjustment process, the rotating mechanism rotates and changes the angle at any time as the seat rises and falls to ensure that the screw and the seat are at a vertical angle. When the seat angle changes, the hinge is used to ensure the rotation of the angle change of the front end of the seat. After adjustment, tighten the long screw;

[0034] The fourth step is to conduct product tests as needed, including:

[0035] (1) If the test product is a traditional booster product, connect the vacuum line and adjust the vacuum value of the vacuum source according to the product design vacuum value to ensure that the vacuum meets the product test requirements. Then connect the hydraulic line and brake load, add brake fluid to the reservoir, and exhaust the system by repeatedly stepping on the pedal. After observing that there are no bubbles in the pipeline, the exhaust is completed and the pedal test begins;

[0036] (2) If the product is an electronically controlled product, connect the power supply, communication line, data acquisition line, hydraulic pipeline and brake load, add brake fluid to the reservoir, start the power supply, communication and data acquisition, and have personnel step on the pedal to exhaust. After observing that there are no bubbles in the pipeline, the exhaust is completed and the pedal test is started;

[0037] Step 5: Analyze the product pressure buildup and foot feel based on the pedal test process;

[0038] If you need to analyze the product's braking noise, you need to place the test bench in a soundproof room and perform the pedal test in the same way as above. The noise collection system will collect the entire braking process of the pedal test and perform noise data processing and analysis.

Claims

1. A pedal test bench that meets the requirements of brake booster products, characterized by: It includes a platform, a seat, a product mounting plate, a platform angle adjustment mechanism, a seat angle adjustment mechanism, a footrest base and a hinge, wherein the seat angle adjustment mechanism is installed in the seat mounting seat at the rear end of the platform, the rear end of the seat is placed on the seat angle adjustment mechanism, and the front end is rotatably connected to the platform through a hinge, the product mounting plate is fixedly connected to the product mounting plate bracket of the platform, the platform angle adjustment mechanism is fixedly connected to the front of the front end frame leg of the platform, and the footrest base is fixedly connected to the bottom of the pedal of the platform through a long positioning hole.

2. A pedal test bench for brake booster products according to claim 1, characterized in that: The stand includes a frame, frame legs, a seat mounting seat and a product mounting plate bracket, wherein the frame legs are fixedly connected to the bottom of the frame, the product mounting plate bracket is fixedly connected to the top of the frame, and the seat mounting seat is fixedly connected to the rear part of the top of the frame.

3. The pedal test bench for brake booster products according to claim 2, characterized in that: The connection between the frame legs and the frame body is fixedly connected to a reinforcing plate 1.

4. The pedal test bench for brake booster products according to claim 2, characterized in that: The connection between the product mounting plate bracket and the frame body is fixedly connected to the reinforcing plate 2.

5. The pedal test bench for brake booster products according to claim 1, characterized in that: The platform angle adjustment mechanism includes a screw, a screw sleeve and a screw base, wherein the screw sleeve is welded in front of the front leg of the platform, the lower end of the screw is fixedly connected to the screw base, and the upper end is processed with an external hexagon.

6. The pedal test bench for brake booster products according to claim 5, characterized in that: The screw is marked with 3-7 degree scale lines.

7. The pedal test bench for brake booster products according to claim 1, characterized in that: The seat angle adjustment mechanism includes a rotating block, a round-head angle adjustment screw, a screw seat, and a long screw. The round-head angle adjustment screw is threadedly connected to the rotating block and passes through it, and then cooperates with the light hole in the screw seat. The top of the screw seat is fixedly connected to the bottom of the seat. The smooth rod parts of the two long screws pass through the seat mounting seat respectively, and the threaded parts at their front ends are threadedly connected to the rotating block.

8. The pedal test bench for brake booster products according to claim 7, characterized in that: The lower end of the round head angle adjustment screw is processed into an external hexagon.

Images