Brake spring testing device

Abstract

The utility model discloses a brake spring testing device, and belongs to the field of spring testing. A brake spring testing device comprises a working table, a driving device is fixed on the upper side of the working table, a placing table is arranged on the upper side of the driving device, a first testing assembly is arranged on the inner side of the placing table, and a second testing assembly is arranged on the inner side of the placing table. The three-plate type pressure sensing module can detect and record the pressure change of the stress point at the end of the spring body in the process from being pressed to reaching the maximum compression amount or from the connecting plate to the preset position in real time, a reliable data basis is provided for analyzing key performance parameters of the spring rigidity, and the actual pressure bearing condition of the spring can be accurately judged in an assisting mode. Meanwhile, in the aspect of deformation monitoring, the overall deformation of the spring when the spring is pressed is monitored in real time by means of a visual detector, the test accuracy is ensured from different dimensions, and the problem that in the prior art, testing is not comprehensive, and consequently the braking effect is affected is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring test field especially, and it relates to a brake spring testing device. BACKGROUND

[0002] In the current brake spring testing technical field, many testing devices are often limited to only evaluating the performance from the deformation condition of the compressed spring, but cannot organically integrate the pressure detection and deformation monitoring two key indicators, so as to ensure the accuracy of the test from multiple dimensions. The one-sidedness of this testing method greatly limits the comprehensive evaluation of spring performance.

[0003] Specifically, if only relying on single dimension data, such as only observing the deformation condition, we may not be able to record the pressure change details of the end force point in the whole process from the initial compression to the maximum compression or a specific preset position, which leads to lack of reliable data support when analyzing key performance parameters such as spring stiffness, and further cannot accurately judge the real pressure condition that the spring can withstand in the actual application scenario, which is easy to make the final spring put into use not meet the actual work requirements, and there are safety hazards or problems affecting the braking effect. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a brake spring testing device to solve the problems raised in the background art.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A brake spring testing device, comprising: a workbench, the upper side of the workbench is fixed with a driving device, the upper side of the driving device is provided with a placing table, the inner side of the placing table is provided with a test assembly one, the test assembly one comprises a connecting plate fixed on the upper side of the driving device, recesses and reserved openings are respectively formed in the connecting plate, and a visual detector is fixed on the top of the connecting plate; wherein

[0007] The inner side of the placing table is provided with a test assembly two, the test assembly two comprises a support rod one fixed on the inner side of the placing table, one side of the support rod one is fixed with a support rod two, the outer side of the support rod two is provided with a circular plate, the bottom of the circular plate is fixed with a compression spring, and one side of the compression spring is fixed with the placing table; and

[0008] The inner side of the placing table is fixed with a three-plate pressure sensor module composed of three plate pressure sensors.

[0009] Preferably, the driving device comprises a reciprocating motor fixed on the top of the workbench, the output end direction of the reciprocating motor is fixed with a reciprocating screw rod, the outer side of the reciprocating screw rod is threadedly driven with a sliding block, and the upper side of the sliding block is fixed with a connecting plate.

[0010] The reciprocating motor is started, and the output end drives the reciprocating screw rod to rotate. The sliding block is threadedly driven on the outer side of the reciprocating screw rod, so as to drive the connecting plate to move. One side of the connecting plate is in contact with the spring body, and pressure is applied to the spring body as the connecting plate moves. In the process of moving the connecting plate, the spring body is gradually compressed, and the circular plate slides. At this time, the inner side wall of the circular plate is in contact with the spring body, and if the end of the spring body is slightly deformed, the force is transmitted to the circular plate. The circular plate transmits the force to the three-plate pressure sensing module, and the three-plate pressure sensing module detects and records the pressure change of the spring body in the compression process in real time. The visual detector monitors the overall deformation of the spring body in real time to ensure the accuracy of the test. The outer side wall of the second supporting rod is in penetrating relationship with the reserved port, so that the spring body is not interfered by the second supporting rod during compression.

[0011] Preferably, the outer side wall of the first supporting rod is in contact with the spring body.

[0012] Preferably, the second supporting rod and the spring body are in non-contact relationship.

[0013] Preferably, the bottom of the circular plate is in close sliding relationship with the placing table.

[0014] Preferably, the outer side wall of the circular plate is in close contact with the three-plate pressure sensing module.

[0015] Preferably, the outer side wall of the second supporting rod is in penetrating relationship with the reserved port.

[0016] Preferably, the outer side wall of the three-plate pressure sensing module is in penetrating relationship with the groove.

[0017] Preferably, one side of the connecting plate is in contact with the spring body.

[0018] Compared with the prior art, the brake spring testing device has the following beneficial effects:

[0019] The utility model discloses a three -plate type pressure sensing module can be in real time detection and record spring body end stress point from the compression to reach the maximum compression or the pressure change of connecting plate to the process of preset position on the pressure detection, provide reliable data basis for the key performance parameter of analysis spring stiffness, help accurate judgment spring actual pressure bearing situation, and in the deformation monitoring aspect, the visual detection appearance in test assembly one can monitor the deformation of spring overall in real time when being compressed, avoid artificial observation error and omission, cooperate with pressure sensing module, ensure the test accuracy from different dimensions, and further more comprehensively evaluate whether spring performance reaches the standard and solve the problem that the prior art exists test not comprehensive and has the security hidden danger or influence brake effect. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be to the embodiment or prior art description needed to use the drawing briefly introduced, obviously, the following description in the drawing only some embodiments of the utility model, for those of ordinary skill in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0021] Figure 1 The three-dimensional structure schematic diagram of the brake spring testing device is provided for the utility model;

[0022] Figure 2 The driving device structure schematic diagram of the brake spring testing device is provided for the utility model;

[0023] Figure 3 The test assembly one structure schematic diagram of the brake spring testing device is provided for the utility model;

[0024] Figure 4 The test assembly two structure schematic diagram of the brake spring testing device is provided for the utility model;

[0025] Figure 5 The node structure schematic diagram of the brake spring testing device is provided for the utility model at A.

[0026] In the drawing:

[0027] 1, workbench;2, driving device;21, reciprocating motor;22, reciprocating screw;23, sliding block;3, placing table;4, test assembly one;41, connecting plate;42, recess;43, reserved port;44, visual detection appearance;5, test assembly two;51, support rod one;52, support rod two;53, round plate;54, compression spring;6, three -plate type pressure sensing module. DETAILED DESCRIPTION

[0028] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments.

[0029] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Embodiments

[0030] Reference Figures 1-5 A brake spring testing device, comprising: a workbench 1, the upper side of the workbench 1 is fixed with a driving device 2, the upper side of the driving device 2 is provided with a placing table 3, the inner side of the placing table 3 is provided with a test assembly one 4, the test assembly one 4 includes a connecting plate 41 fixed on the upper side of the driving device 2, recesses 42 and reserved openings 43 are respectively formed on the connecting plate 41, and a visual detector 44 is fixed on the top of the connecting plate 41; wherein

[0031] The inner side of the placing table 3 is provided with a test assembly two 5, the test assembly two 5 includes a support rod one 51 fixed on the inner side of the placing table 3, one side of the support rod one 51 is fixed with a support rod two 52, the outer side of the support rod two 52 is provided with a circular plate 53, the bottom of the circular plate 53 is fixed with a compression spring 54, and one side of the compression spring 54 is fixed with the placing table 3; and

[0032] The inner side of the placing table 3 is fixed with a three-plate pressure sensor module 6 composed of three plate pressure sensors.

[0033] The driving device 2 includes a reciprocating motor 21 fixed on the top of the workbench 1, the output end direction of the reciprocating motor 21 is fixed with a reciprocating screw rod 22, the outer side of the reciprocating screw rod 22 is threadedly driven with a sliding block 23, and the upper side of the sliding block 23 is fixed with the connecting plate 41.

[0034] The reciprocating motor 21 is started, and its output end drives the reciprocating screw rod 22 to rotate. The slider 23 is threadedly driven on the outside of the reciprocating screw rod 22, thereby driving the connecting plate 41 to move. One side of the connecting plate 41 abuts against the spring body, and as the connecting plate 41 moves, the spring body is gradually compressed, and the circular plate 53 slides at the same time. At this time, the inner side wall of the circular plate 53 is in contact with the spring body, and if the end of the spring body is slightly deformed, the force will be transmitted to the circular plate 53, and then the circular plate 53 will transmit the force to the three-plate pressure sensing module 6, and the three-plate pressure sensing module 6 detects and records the pressure change of the spring body in the compression process in real time. The visual detector 44 monitors the overall deformation of the spring body in real time to ensure the accuracy of the test. The outer side wall of the support rod two 52 is in penetrating relationship with the reserved port 43, so that the spring body is not interfered by the support rod two 52 during compression.

[0035] The outer side wall of the support rod one 51 is in contact with the spring body.

[0036] The support rod two 52 is in non-contact relationship with the spring body.

[0037] The bottom of the circular plate 53 is in abutting and sliding relationship with the placement table 3.

[0038] The outer side wall of the circular plate 53 is in close contact with the three-plate pressure sensing module 6. The inner side wall of the circular plate 53 is in contact with the spring body.

[0039] The outer side wall of the support rod two 52 is in penetrating relationship with the reserved port 43.

[0040] The outer side wall of the three-plate pressure sensing module 6 is in penetrating relationship with the groove 42.

[0041] One side of the connecting plate 41 abuts against the spring body.

[0042] Working principle: please refer to Figures 1-5 As shown, first, the initial state: the workbench 1 of the device is fixed with a driving device 2, and the top of the driving device 2 is provided with a placement table 3. The inside of the placement table 3 is provided with a test assembly one 4 and a test assembly two 5, and a three-plate pressure sensing module 6. The test assembly one 4 includes a connecting plate 41, which is provided with a groove 42 and a reserved port 43, and is fixed with a visual detector 44. The test assembly two 5 includes a support rod one 51, a support rod two 52, a circular plate 53 and a compression spring 54. The spring body is placed on the outer side wall of the support rod one 51, and at this time the spring body does not contact the support rod two 52, but the bottom of the circular plate 53 is in abutting and sliding relationship with the placement table 3, and can be moved through the compression spring 54. And the outer side wall of the circular plate 53 is in close contact with the three-plate pressure sensing module 6, which is prepared for subsequent testing.

[0043] The reciprocating motor 21 is started, and its output end drives the reciprocating screw rod 22 to rotate. The slider 23 is threadedly driven on the outside of the reciprocating screw rod 22, thereby driving the connecting plate 41 to move. One side of the connecting plate 41 abuts against the spring body, and as the connecting plate 41 moves, the spring body is gradually compressed, and the circular plate 53 slides simultaneously. At this time, the inner side wall of the circular plate 53 is in contact with the spring body, and if the end force point of the spring body slightly deforms, the force is transmitted to the circular plate 53, and then the circular plate 53 transmits the force to the three-plate pressure sensing module 6, and the three-plate pressure sensing module 6 detects and records the pressure change of the spring body in the compression process in real time. The visual detector 44 monitors the overall deformation of the spring body in real time to ensure the accuracy of the test. The outer side wall of the supporting rod two 52 is in penetrating relationship with the reserved port 43, so that the spring body is not interfered by the supporting rod two 52 in the compression process.

[0044] When the connecting plate 41 reaches the preset position or the spring body reaches its maximum compression amount, the reciprocating motor 21 stops working. Through the data collected by the three-plate pressure sensing module 6 and the visual detector 44, the performance parameters of the spring body, such as stiffness, maximum compression amount and whether the end force deforms, can be analyzed. The collected test data is recorded and input into an external computer or other data processing equipment. Through the analysis of these data, whether the performance of the spring body meets the design requirements or expected standards can be evaluated, and the three-plate pressure sensing module 6 and the visual detector 44 are prior art, and the utility model will not be described too much, and the drawings will not be displayed too much.

Claims

1. A brake spring testing device comprising: The workbench (1) is characterized in that the upper side of the workbench (1) is fixed with a driving device (2), the upper side of the driving device (2) is provided with a placing table (3), the inner side of the placing table (3) is provided with a test assembly one (4), the test assembly one (4) comprises a connecting plate (41) fixed on the upper side of the driving device (2), recesses (42) and reserved openings (43) are respectively formed in the connecting plate (41), and a visual detector (44) is fixed on the top of the connecting plate (41). The inner side of the placing table (3) is provided with a test assembly two (5), the test assembly two (5) comprises a supporting rod one (51) fixed on the inner side of the placing table (3), one side of the supporting rod one (51) is fixed with a supporting rod two (52), the outer side of the supporting rod two (52) is provided with a circular plate (53), the bottom of the circular plate (53) is fixed with a compression spring (54), and one side of the compression spring (54) is fixed with the placing table (3). The inner side of the placing table (3) is fixed with a three-plate pressure sensing module (6) composed of three plate pressure sensors.

2. A brake spring testing device according to claim 1, wherein, The driving device (2) comprises a reciprocating motor (21) fixed on the top of the workbench (1), the output end direction of the reciprocating motor (21) is fixed with a reciprocating screw rod (22), the outer side of the reciprocating screw rod (22) is threadedly driven with a sliding block (23), and the upper side of the sliding block (23) is fixed with the connecting plate (41).

3. A brake spring testing device as defined in claim 1, wherein, The outer side wall of the supporting rod one (51) is in contact with the spring body.

4. The brake spring testing device of claim 1, wherein, The supporting rod two (52) and the spring body are in non-contact relationship.

5. The brake spring testing device of claim 1, wherein, The bottom of the circular plate (53) and the placing table (3) are in close sliding relationship.

6. A brake spring testing device as defined in claim 1, wherein, The outer side wall of the circular plate (53) and the three-plate pressure sensing module (6) are in close contact.

7. The brake spring testing device of claim 1, wherein, The outer side wall of the supporting rod two (52) and the reserved opening (43) are in penetrating relationship.

8. The brake spring testing device of claim 1, wherein, The outer side wall of the three-plate pressure sensing module (6) and the recess (42) are in penetrating relationship.

9. The brake spring testing device of claim 2, wherein, One side of the connecting plate (41) is in contact with the spring body.

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