Simulation test device for durability of brake chamber

Abstract

The utility model relates to the technical field of automobile simulation tests, and discloses a brake chamber durability simulation test device, which comprises a test supporting table, a test platform, a test platform, a test platform, a test platform, a test platform, a test platform and a test platform, and is characterized in that the test platform comprises a base and a mounting bracket arranged on the base and used for mounting a brake chamber; the testing mechanism comprises an elastic piece mounted on the mounting bracket; the connecting mechanism comprises a connecting plate and a locking assembly, the connecting plate is connected with the elastic piece through a connecting piece arranged on the connecting plate, the locking assembly comprises a locking rod, and the locking rod can conduct position-adjustable reciprocating motion on the connecting plate in the direction perpendicular to the brake air chamber push rod and can be inserted into an inserting hole in the brake air chamber push rod. The connecting plate is further provided with a driving mechanism capable of driving the lock rod to make position-adjustable reciprocating motion in the direction perpendicular to the brake chamber push rod. When the brake chamber push rod extends out, the elastic piece can be driven by the lock rod and the connecting plate to generate recoverable elastic deformation. According to the utility model, rapid installation and connection of the brake chamber can be realized, and test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive simulation tests, and more specifically, to a durability simulation test device for a brake chamber. Background Technique

[0002] The brake chamber, also known as the brake slave cylinder in the industry, is a key component in a vehicle that converts the energy of compressed air into mechanical energy for braking. As an actuator that converts air pressure into thrust, its safety is particularly important. After the brake chamber is manufactured, the manufacturer will test its durability to select qualified products for the market. The existing simulation test device is relatively complex when connecting the push rod and the articulated frame on the brake chamber, is not easy to disassemble, and affects the subsequent test efficiency of the brake chamber. Content of the Utility Model

[0003] The purpose of the utility model is to provide a durability simulation test device for a brake chamber to solve the problems in the above background technique.

[0004] To solve the above technical problems, the utility model is implemented by adopting the following technical solutions:

[0005] A durability simulation test device for a brake chamber is used for the durability simulation test of the brake chamber. The device includes:

[0006] A test support platform 100, which includes a base 110 and a mounting bracket 120 arranged on the base 110. The mounting bracket 120 is provided with a through hole for the push rod of the brake chamber to vertically pass through, and a mounting hole for mounting the brake chamber.

[0007] A test mechanism 200, which includes an elastic member 210, and the elastic member 210 is installed on the mounting bracket 120.

[0008] A connection mechanism 300, which includes a connecting plate 310 and a locking assembly 320. The connecting plate 310 is connected to the elastic member 210 through a connecting member 311 arranged thereon. The locking assembly 320 includes a locking rod 324. The locking rod 324 can make a reciprocating movement with adjustable position along a direction perpendicular to the push rod of the brake chamber on the connecting plate 310 and can be inserted into a jack on the push rod of the brake chamber. A driving mechanism for driving the locking rod 324 to make a reciprocating movement with adjustable position along a direction perpendicular to the push rod of the brake chamber is also arranged on the connecting plate 310. When the push rod of the brake chamber extends, the elastic member 210 can be driven to undergo recoverable elastic deformation through the locking rod 324 and the connecting plate 310.

[0009] Further, the driving mechanism for driving the locking rod 324 to perform a reciprocating movement with adjustable position along a direction perpendicular to the push rod of the brake chamber includes a magnetic ring 321, a first support cylinder 322, a magnet 323, and a spring 325. The magnetic ring 321 and the first support cylinder 322 are installed on the connecting plate 310. The magnetic ring 321 can be controlled to be magnetized or demagnetized. The first support cylinder 322 has a cavity inside. The magnet 323 is movably arranged in the cavity of the first support cylinder 322. The spring 325 is arranged between the inner bottom surface of the first support cylinder 322 and the magnet 323. One end of the locking rod 324 extends into the first support cylinder 322 from the top surface and is connected to the magnet 323. The other end of the locking rod 324 passes through the magnetic ring 321. When the magnetic ring 321 is magnetized, the like poles repel the magnet 323 to drive the locking rod 324 to move towards the bottom surface of the first support cylinder 322. At this time, the spring 325 is compressed.

[0010] Further, there are two locking assemblies 320. The two locking assemblies 320 are arranged axially symmetrically with each other. The locking rods 324 of the two locking assemblies 320 can extend towards each other.

[0011] Further, the mounting bracket 120 is configured as a square frame, including two support plates 121 oppositely arranged on the base 110, and cross beams 122 connecting the two side edges of the two support plates 121 respectively. The through hole for the push rod of the brake chamber to vertically pass through and the mounting hole for mounting the brake chamber are arranged on one of the support plates 121 mentioned above. The elastic member 210 is installed on the other support plate 121.

[0012] Further, the elastic member 210 is a spring.

[0013] Further, the testing mechanism 200 further includes a second support cylinder 220 and a pull rod 230. The second support cylinder 220 is vertically installed on the support plate 121. The elastic member 210 is arranged inside the second support cylinder 220. One end of the pull rod 230 extends into the second support cylinder 220 and is connected to the elastic member 210. The other end of the pull rod 230 is connected to the connecting member 311 on the connecting plate 310. When the push rod of the brake chamber extends, it can drive the pull rod 230 to move through the locking rod 324 and the connecting plate 310, and then compress or stretch the elastic member 210 to generate a recoverable elastic deformation.

[0014] Further, a limiting convex ring 231 is provided at one end of the pull rod 230 extending into the second support cylinder 220. The elastic member 210 is sleeved on the pull rod 230 and is located between the limiting convex ring 231 and the inner top surface of the second support cylinder 220. The pull rod 230 is connected to the connecting member 311 on the connecting plate 310 through a connecting rod 240. The middle of the connecting rod 240 is rotatably connected to a shaft member 250 provided on the cross beam 122 to form a lever structure. The two ends of the connecting rod 240 are respectively hinged to the pull rod 230 and the connecting member 311. When the push rod of the brake chamber extends, one end of the connecting rod 240 can be pushed forward through the lock rod 324 and the connecting plate 310, and the other end of the connecting rod 240 pulls the pull rod 230 backward, thereby compressing the elastic member 210 to generate a recoverable deformation.

[0015] Further, there are two of the testing mechanisms 200, and the two testing mechanisms 200 are arranged in parallel.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] For a brake chamber durability simulation test device provided by the present invention, during the test, the push rod of the brake chamber is quickly connected to the testing mechanism through a connecting mechanism. When the magnetic ring is controlled to be magnetized, due to the principle of like poles repelling each other, the magnet is pushed to drive the lock rod to move. Then, the push rod of the brake chamber is passed through the through hole on the mounting bracket, and then the magnetic ring is controlled to demagnetize. Because the magnet squeezes the spring in the first support cylinder when moving, the spring generates an elastic deformation. When the squeezing force is lost, the elastic force is released to push the magnet to move, so that the magnet drives the lock rod to insert into the jack of the brake chamber push rod, that is, the installation connection of the brake chamber is completed; when the brake chamber is ventilated to drive the push rod to extend, the push rod pushes one end of the connecting rod forward through the lock rod and the connecting plate, and the other end of the connecting rod pulls the pull rod backward, thereby compressing the elastic member to generate a recoverable elastic deformation. At this time, the brake chamber is deflated, and then the pulling force on the pull rod disappears, so that the elastic member is reset. Repeating this operation, after a period of time, the brake chamber can still operate normally, proving that the brake chamber meets the durability test. If the elastic member has started to slowly reset without deflation, it proves that the airtightness of the brake chamber is unqualified. Description of the Drawings

[0018] The following further describes the present invention with reference to the drawings:

[0019] Figure 1 It is a schematic structural diagram of a brake chamber durability simulation test device in an embodiment;

[0020] Figure 2 It is a schematic cross-sectional structure diagram of a test component in an embodiment;

[0021] Figure 3 Schematic diagram of the installation structure of the second cylinder in an embodiment;

[0022] Figure 4 Schematic diagram of the connection structure between the test mechanism and the connection mechanism in an embodiment;

[0023] Figure 5 Schematic diagram of the sectional structure of the connection mechanism in an embodiment;

[0024] Figure 6 Schematic diagram of the connection structure between the connection mechanism and the push rod of the brake chamber in an embodiment;

[0025] 100. Test support platform, 110. Base, 120. Mounting bracket, 121. Support plate, 122. Cross beam;

[0026] 200. Test mechanism, 210. Elastic member, 220. Second cylinder, 230. Pull rod, 231. Limit collar, 232. Hinge lug, 240. Connecting rod, 250. Shaft member, 260. Transition connecting member;

[0027] 300. Connection mechanism, 310. Connection plate, 311. Connecting member, 320. Locking assembly, 321. Magnetic ring, 322. First cylinder, 323. Magnet, 324. Lock rod, 325. Spring;

[0028] 400. Brake chamber, 410. Push rod;

[0029] X. First direction, Y. Second direction. Detailed implementation manners

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0031] Refer to Figures 1 to 6 , this embodiment provides a durability simulation test device for a brake chamber, which is used for the durability simulation test of the brake chamber 400. The device includes: a test support platform 100, a test mechanism 200 and a connection mechanism 300.

[0032] In this embodiment, for the convenience of description, the telescopic direction of the push rod 410 of the brake chamber 400 is defined as the first direction X, and the direction perpendicular to the first direction X in the horizontal plane is defined as the second direction Y.

[0033] The test support 100 includes a base 110 and a mounting bracket 120 disposed on the base 110. The mounting bracket 120 is configured as a square frame and includes two support plates 121 oppositely arranged at intervals along the first direction X on the base 110, and cross beams 122 connecting the two side edges of the two support plates 121 respectively. One of the support plates 121 is used for mounting the brake chamber 400, and through holes for the push rod 410 of the brake chamber 400 to vertically pass through and mounting holes for fixing the brake chamber 400 are provided on this support plate 121. The other opposite support plate 121 is used for mounting the test mechanism 200.

[0034] The test mechanism 200 includes an elastic member 210, a second support cylinder 220, a pull rod 230 and a connecting rod 240. The second support cylinder 220 is vertically mounted on the support plate 121, and a sliding space extending along the first direction X is provided inside the second support cylinder 220. One end of the pull rod 230 extends into the second support cylinder 220, and the other end passes through the support plate 121. A limiting collar 231 is provided at the end of the pull rod 230 extending into the second support cylinder 220. The elastic member 210 is a spring, and the elastic member 210 is sleeved on the pull rod 230 and is located between the limiting collar 231 and the inner top surface of the second support cylinder 220. The middle of the connecting rod 240 is rotatably connected to a shaft member 250 extending along the second direction Y on the cross beam 122 to form a lever structure. The two ends of the connecting rod 240 are respectively hinged to the end of the pull rod 230 passing through the support plate 121 and the connecting mechanism 300. When the push rod 410 of the brake chamber 400 extends out, it can push one end of the connecting rod 240 to move forward through the connecting mechanism 300, and the other end of the connecting rod 240 pulls the pull rod 230 to move backward, thereby compressing the elastic member 210 to generate a recoverable elastic deformation.

[0035] In this embodiment, one end of the pull rod 230 passing through the support plate 121 is connected to the connecting rod 240 through a transition connecting member 260. A hinge lug 232 is provided at the end of the pull rod 230 passing through the support plate 121, and the two ends of the transition connecting member 260 are respectively hinged to the hinge lug 232 and the end of the connecting rod 240.

[0036] In this embodiment, in order to make the push rod 410 of the brake chamber 400 receive uniform force during the test, there are two test mechanisms 200, and the two test mechanisms 200 are symmetrically arranged in parallel with each other along the axial direction of the push rod 410 of the brake chamber 400.

[0037] The connecting mechanism 300 includes a connecting plate 310 and a locking assembly 320.

[0038] On one side of the connecting plate 310, a double hinge ear is provided as a connecting member 311, and the connecting plate 310 is hinged to the end of the connecting rod 240 through the connecting member 311.

[0039] The locking assembly 320 includes a locking rod 324. The locking rod 324 can make a reciprocating movement with adjustable position along a direction perpendicular to the push rod 410 of the brake chamber 400, that is, the second direction Y, on the connecting plate 310, and can be inserted into the jack on the push rod 410 of the brake chamber 400 to realize the connection and locking of the push rod 410 of the brake chamber 400. A driving mechanism for driving the locking rod 324 to make a reciprocating movement with adjustable position along a direction perpendicular to the push rod 410 of the brake chamber 400 is further provided on the connecting plate 310. The driving mechanism includes a magnetic ring 321, a first support cylinder 322, a magnet 323 and a spring 325. The magnetic ring 321 and the first support cylinder 322 are installed on the connecting plate 310. The magnetic ring 321 can be controlled to be magnetized or demagnetized. The first support cylinder 322 has a cavity extending along the second direction Y. The magnet 323 is movably arranged in the cavity of the first support cylinder 322 and can slide in the first support cylinder 322 along the second direction Y. The spring 325 is arranged between the inner bottom surface of the first support cylinder 322 and the magnet 323. One end of the locking rod 324 extends into the first support cylinder 322 from the top surface and is connected to the magnet 323. The other end of the locking rod 324 passes through the magnetic ring 321. When the magnetic ring 321 is magnetized, according to the principle of like poles repelling, the magnet 323 is pushed to drive the locking rod 324 to move towards the bottom surface of the first support cylinder 322, that is, away from the push rod 410 of the brake chamber 400. At this time, the spring 325 is compressed.

[0040] In this embodiment, in order to ensure the balanced and stable connection of the push rod 410 of the brake chamber 400, there are two locking assemblies 320. The two locking assemblies 320 are symmetrically arranged with respect to the axial direction of the push rod 410 of the brake chamber 400, and the locking rods 324 of the two locking assemblies 320 can extend towards each other.

[0041] A method for using a brake chamber durability simulation test device provided in this embodiment:

[0042] During the test preparation stage, the brake air chamber 400 must first be connected to the test mechanism 200. Specifically, the magnetic ring 321 is first controlled to be magnetized. Because of the principle of like poles repelling each other, the magnet 323 drives the locking rod 324 to move in the direction of the push rod 410 away from the brake air chamber 400. Then, the brake air chamber 400 is installed on the support plate 121, and the brake air chamber 400 is fixed through the installation hole provided on the support plate 121 using connecting parts such as screws, so that the push rod 410 of the brake air chamber 400 passes through the through hole on the support plate 121. , and then the magnetic ring 321 is controlled to be demagnetized, because the magnet 323 squeezes the spring 325 in the first support tube 322 when moving in the direction of the push rod 410 away from the brake air chamber 400, so that the spring 325 is elastically deformed. When the squeezing force is lost, the spring 325 releases the elastic force to push the magnet 323 to move in the direction of the push rod 410 close to the brake air chamber 400, so that the magnet 323 drives the locking rod 324 to be inserted into the jack of the push rod 410 of the brake air chamber 400, thereby completing the installation and connection of the brake air chamber 400.

[0043] The test is officially started, the brake air chamber 400 is ventilated, driving the push rod 410 to extend, and the push rod 410 pushes one end of the connecting rod 240 to move forward through the connecting mechanism 300, and the other end of the connecting rod 240 pulls the pull rod 230 to move backward through the transition connector 260, thereby compressing the elastic member 210 to cause a recoverable elastic deformation. At this time, the brake air chamber 400 is deflated, and the tension on the pull rod 240 disappears, thereby resetting the elastic member 210. Repeat this operation. If the brake air chamber 400 can still operate normally after a period of time, it proves that the brake air chamber 400 meets the durability test requirements. If the elastic member 210 has begun to slowly reset without deflation, it proves that the air tightness of the brake air chamber 400 is unqualified and does not meet the durability test requirements.

[0044] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are 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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0045] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A brake chamber durability simulation test device, used for brake chamber durability simulation test, characterized in that: The device comprises: A test support platform (100), the test support platform (100) comprising a base (110) and a mounting bracket (120) arranged on the base (110), the mounting bracket (120) being provided with a through hole for a push rod of a brake air chamber to vertically pass through, and a mounting hole for mounting the brake air chamber; A testing mechanism (200), the testing mechanism (200) comprising an elastic member (210), the elastic member (210) being mounted on the mounting bracket (120); A connecting mechanism (300), the connecting mechanism (300) comprising a connecting plate (310) and a locking assembly (320), the connecting plate (310) being connected to the elastic member (210) via a connecting member (311) arranged thereon; the locking assembly (320) comprising a locking rod (324), the locking rod (324) being capable of making position-adjustable reciprocating motion on the connecting plate (310) in a direction perpendicular to a push rod of a brake air chamber, and being capable of being inserted into a socket on the push rod of the brake air chamber; the connecting plate (310) is also provided with a driving mechanism capable of driving the locking rod (324) to make position-adjustable reciprocating motion in a direction perpendicular to the push rod of the brake air chamber; when the push rod of the brake air chamber is extended, the elastic member (210) can be driven to undergo restorable elastic deformation via the locking rod (324) and the connecting plate (310).

2. A brake chamber durability simulation test device according to claim 1, characterized in that: The driving mechanism for driving the locking rod (324) to make a position-adjustable reciprocating motion in a direction perpendicular to the brake chamber push rod comprises a magnetic ring (321), a first support tube (322), a magnet (323) and a spring (325). The magnetic ring (321) and the first support tube (322) are mounted on the connecting plate (310). The magnetic ring (321) can be controlled to be magnetically connected or magnetically disconnected. The first support tube (322) has a cavity inside. The magnet (323) is movably arranged in the cavity of the first support tube (322). The spring (325) is arranged between the inner bottom surface of the first support tube (322) and the magnet (323); one end of the locking rod (324) extends from the top surface of the first support tube (322) to be connected with the magnet (323), and the other end of the locking rod (324) passes through the magnetic ring (321). When the magnetic ring (321) is magnetized, the same pole repels the magnet (323) and drives the locking rod (324) to move toward the bottom surface of the first support tube (322), and at this time, the spring (325) is compressed.

3. The brake chamber durability simulation test device according to claim 1, characterized in that: The locking components (320) are provided in two pieces, and the two locking components (320) are arranged axially symmetrically with each other, and the locking rods (324) of the two locking components (320) can extend toward each other.

4. The brake chamber durability simulation test device according to claim 1, characterized in that: The mounting bracket (120) is constructed as a square frame, comprising two supporting plates (121) arranged opposite to each other on the base (110), and a crossbeam (122) connecting the two side edges of the two supporting plates (121), the through hole for the push rod of the brake air chamber to pass vertically and the mounting hole for mounting the brake air chamber are arranged on one of the supporting plates (121), and the elastic member (210) is mounted on the other supporting plate (121).

5. A brake chamber durability simulation test device according to claim 4, characterized in that: The elastic member (210) is a spring.

6. A brake chamber durability simulation test device according to claim 5, characterized in that: The testing mechanism (200) further comprises a second support tube (220) and a pull rod (230), wherein the second support tube (220) is vertically mounted on the support plate (121), the elastic member (210) is arranged in the second support tube (220), one end of the pull rod (230) extends into the second support tube (220) and is connected to the elastic member (210), and the other end of the pull rod (230) passes through the support plate (121) and is connected to the connecting member (311) on the connecting plate (310), and when the brake air chamber push rod is extended, the lock rod (324) and the connecting plate (310) can drive the pull rod (230) to move, thereby compressing or stretching the elastic member (210) to produce a recoverable elastic deformation.

7. A brake chamber durability simulation test device according to claim 6, characterized in that: A limiting convex ring (231) is provided at one end of the pull rod (230) extending into the second support tube (220); the elastic member (210) is sleeved on the pull rod (230) and is located between the limiting convex ring (231) and the inner top surface of the second support tube (220); the pull rod (230) is connected to the connecting member (311) on the connecting plate (310) through a connecting rod (240); the middle part of the connecting rod (240) is connected to the connecting member (311) provided on the cross beam (122). The shaft member (250) is rotatably connected to form a lever structure, and the two ends of the connecting rod (240) are respectively hingedly connected to the pull rod (230) and the connecting member (311). When the brake air chamber push rod is extended, one end of the connecting rod (240) can be pushed forward by the locking rod (324) and the connecting plate (310), and the other end of the connecting rod (240) pulls the pull rod (230) to move backward, thereby compressing the elastic member (210) to produce a recoverable elastic deformation.

8. The brake chamber durability simulation test device according to claim 7, characterized in that: The testing mechanisms (200) include two, and the two testing mechanisms (200) are arranged in parallel.

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