Brake test tool

Abstract

The utility model relates to the technical field of drum brake, in particular to a brake test tool, which comprises a mounting plate, shoes are symmetrically arranged on the mounting plate, one end of each shoe is rotatably connected onto the mounting plate, the other end of each shoe is abutted against a wheel cylinder, an elastic piece is arranged between the shoes, and a plurality of friction plates are arranged on one sides of the shoes far away from a symmetric center. Sliding frames matched with the friction plates are symmetrically arranged on the mounting plate in a sliding manner, test grooves matched with the shoe plates are formed in one ends, close to the shoe plates, of the sliding frames, positioning rods are symmetrically arranged between the sliding frames in a penetrating manner, and limiting pieces used for limiting the positions of the sliding frames are arranged on the positioning rods at the positions of the sliding frames in a sleeving manner. Therefore, according to the utility model, the friction plate and the brake cylinder can be detected in a targeted manner, the manufacturing cost is reduced, the test efficiency is improved, the structure is simple, and the use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to drum type brake technology field especially relates to a brake test frock. BACKGROUND

[0002] Drum type brake is mainly composed of brake drum, brake shoe, brake bottom plate, brake wheel cylinder, return spring, brake pedal etc., when the driver steps on the brake pedal, brake master cylinder pushes brake fluid into brake wheel cylinder, piston in the wheel cylinder moves outward, piston drives brake shoe to move to the inside of brake drum, brake shoe and brake drum produce friction, thereby generating brake force, the greater the pressure of brake fluid, the greater the friction of brake shoe and brake drum, the greater the brake force.

[0003] At present, the existing brake test frock is more for the detection of the service life of friction plate and wheel cylinder life by utilizing the interaction of brake drum and friction plate on brake shoe, and the structure is complex, the manufacturing cost is high, and the maintenance and repair cost is large in later period.

[0004] How to detect friction plate and brake wheel cylinder, reduce manufacturing cost, improve test efficiency, and the structure is simple, becomes a technical problem that needs to be broken through.

[0005] From the above, it is obvious that the prior art has inconvenience and defects in actual use, so it is necessary to improve. UTILITY MODEL CONTENTS

[0006] In view of the above defects, the utility model aims at providing a brake test frock, which can detect friction plate and brake wheel cylinder, reduce manufacturing cost, improve test efficiency, and the structure is simple and convenient to use.

[0007] In order to realize the above purpose, the utility model provides a brake test frock, which comprises a mounting plate, a shoe is symmetrically arranged on the mounting plate and rotatably connected to the mounting plate at one end, the other end of the shoe abuts against a wheel cylinder, an elastic member is arranged between the shoes, a plurality of friction plates are arranged on the side of the shoe away from the symmetry center, a sliding frame matched with the friction plates is symmetrically and slidably arranged on the mounting plate, and a test groove matched with the shoe is arranged at one end of the sliding frame close to the shoe.

[0008] Positioning rods are symmetrically arranged on the sliding frame, and a limiting piece for limiting the position of the sliding frame is sleeved on the positioning rod at the sliding frame.

[0009] According to the brake test frock of the utility model, the mounting plate is symmetrically provided with a slide way, and the sliding frame is slidably arranged on the slide way.

[0010] The utility model discloses a brake test tool, the sliding frame all is equipped with the mounting groove in, the mounting groove all is equipped with the anti -skid sleeve symmetry, the anti -skid sleeve is close to the one end of slide and all is equipped with the anti -skid surface.

[0011] The utility model discloses a brake test tool, the anti -skid sleeve all elasticity is connected with the locking lever, be equipped with a plurality of locking hole with locking lever cooperation on the slide, the locking lever all is screwed in the locking hole.

[0012] The utility model discloses a brake test tool, the locking lever all is equipped with the plug -in block symmetry, the anti -skid sleeve all is equipped with the insertion slot with plug -in block cooperation, the plug -in block all slidingly sets up in the insertion slot, and the plug -in block and insertion slot all are equipped with support spring.

[0013] The utility model discloses a brake test tool, the mounting plate is equipped with the adjusting part with the shoe cooperation symmetry, the adjusting part all is connected with the mounting plate through the connecting piece.

[0014] The utility model discloses a brake test tool, including wheel cylinder, wheel cylinder, shoe and sliding frame etc. structure cooperation, can carry out the detection of friction plate and brake wheel cylinder in the direction, reduce the production cost, promote the test efficiency, and simple structure, convenient to use, through the position of moving limiting piece, limit the distance between two sliding frames, thereby adapt the shape of shoe, the anti -skid sleeve close to the one end of slide all is equipped with the anti -skid surface, and the anti -skid surface can increase the friction between sliding frame and slide, promote the stability of sliding frame. Above all, the utility model has the advantages of: can carry out the detection of friction plate and brake wheel cylinder in the direction, reduce the production cost, promote the test efficiency, and simple structure, convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the structure diagram of the utility model;

[0016] Fig. 2 It is the structure diagram of adjusting part;

[0017] Fig. 3 It is the section view of locking lever;

[0018] In the drawing: 1 - mounting plate, 11 - shoe, 12 - elastic part, 13 - wheel cylinder, 14 - adjusting part, 15 - connecting piece, 16 - friction plate, 2 - slide, 21 - locking hole, 3 - sliding frame, 31 - test groove, 32 - positioning rod, 33 - limiting piece, 4 - anti -skid sleeve, 41 - anti -skid surface, 42 - locking lever, 5 - support spring. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model will be further described in detail below with reference to the drawings. It should be understood that the specific embodiments described herein are only used to explain the utility model and not to limit the utility model.

[0020] In the description of the utility model, it should be pointed out that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply 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 utility model.

[0021] In the description of the utility model, it should be pointed out that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, can be electrically connected, can be directly connected, can be indirectly connected through an intermediate medium, can be connected between two elements, and the specific meaning of the above terms in the utility model can be understood according to the specific circumstances for those skilled in the art.

[0022] Referring to Figs. 1-3 The utility model provides a brake test tool which comprises a mounting plate 1, the mounting plate 1 is symmetrically provided with a shoe 11 rotatably connected to one end of the mounting plate 1, the other end of the shoe 11 abuts against a wheel cylinder 13 (the wheel cylinder 13 is a hydraulic cylinder with two ends extending to both sides or contracting to the center), the shoe 11 is an arc structure, an elastic element 12 is arranged between the shoes 11, a plurality of friction plates 16 are arranged on the side of the shoe 11 away from the symmetry center, a sliding frame 3 matched with the friction plate 16 is symmetrically and slidably arranged on the mounting plate 1, and a test groove 31 matched with the shoe 11 is arranged on one end of the sliding frame 3 close to the shoe 11; during the test, the wheel cylinder 13 is opened, one end of the shoe 11 is pushed to the side away from the symmetry center by the two output ends of the wheel cylinder 13 respectively, since one end of the shoe 11 is hingedly connected to the mounting plate 1, the shoe 11 can only expand outward (while stretching the elastic element 12), the friction plate 16 abuts against the test groove 31, the service life of the wheel cylinder 13 is tested through multiple tests, and the pressure resistance of the friction plate 16 is tested at the same time.

[0023] Referring to Figs. 1-3Further, the mounting plate 1 is symmetrically provided with an adjusting piece 14 matched with the shoe 11, the adjusting piece 14 is connected to the mounting plate 1 through a connecting piece 15, and the adjusting piece 14 is a cam; by adjusting the rotation angle of the adjusting piece 14, the end of the adjusting piece 14 with different diameters is abutted against the shoe 11, the initial opening angle of the shoe 11 when not being tested is adjusted, the shoe 11 can be better matched with the test tank 31, and the connecting piece 15 can be tightened or loosened to assist the operator in fixing or adjusting the adjusting piece 14.

[0024] Referring to Figs. 1-3 Preferably, the connecting piece 15 is a bolt, which is convenient for the operator to disassemble and assemble.

[0025] Referring to Figs. 1-3 Preferably, the elastic piece 12 is a spring, which provides a return force.

[0026] Referring to Figs. 1-3 Specifically, the mounting plate 1 is symmetrically provided with a slide 2, and the sliding frame 3 is slidably arranged on the slide 2 (each sliding frame 3 is slidably connected to two slides 2); the slide 2 is symmetrically provided with a positioning rod 32 (each positioning rod 32 is arranged on two sliding frames 3); the positioning rod 32 is threadedly provided with a limiting piece 33; by moving the position of the limiting piece 33, the distance between the two sliding frames 3 is limited, so as to adapt to the shape of the shoe 11.

[0027] Referring to Figs. 1-3 Preferably, the positioning rod 32 is a screw rod, and the limiting piece 33 is a nut, which is convenient for the operator to adjust.

[0028] Referring to Figs. 1-3 Further, the sliding frame 3 is provided with a mounting groove, the mounting groove is symmetrically provided with an anti-skid sleeve 4, one end of the anti-skid sleeve 4 close to the slide 2 is provided with an anti-skid surface 41, the anti-skid surface 41 can increase the friction between the sliding frame 3 and the slide 2, and the stability of the sliding frame 3 is improved; the anti-skid sleeve 4 is elastically connected with a locking rod 42 (the locking rod 42 is symmetrically provided with an insertion block, the anti-skid sleeve 4 is provided with an insertion slot matched with the insertion block, the insertion block is slidably arranged in the insertion slot, and the insertion block and the insertion slot are provided with a supporting spring 5); the slide 2 is provided with a plurality of locking holes 21 matched with the locking rod 42, and the locking rod 42 is threadedly connected to the locking hole 21; when the sliding frame 3 is moved, the locking rod 42 is not matched with the locking hole 21 due to the supporting action of the supporting spring 5; when the sliding frame 3 is moved to a proper distance, the locking rod 42 is pressed towards the side close to the locking hole 21, and the locking rod 42 is threadedly matched with the locking hole 21, so that the position of the sliding frame 3 is locked.

[0029] Referring to Figs. 1-3When in use, the distance between the two sliding frames 3 is adjusted by moving the position of the limiting part 33, then the locking rod 42 is screwed with the locking hole 21 to lock the position of the sliding frame 3, and the wheel cylinder 13 can be opened, through multiple experiments, the service life of the wheel cylinder 13 is tested, and the pressure resistance of the friction plate 16 is tested.

[0030] The utility model provides a kind of brake test tool, including wheel cylinder, wheel cylinder, shoe and sliding frame etc. Structure is mutually cooperated, can be detected to friction plate and brake wheel cylinder specifically, reduce manufacturing cost, improve test efficiency, and simple structure, convenient to use;The distance between the two sliding frames is limited by moving the position of the limiting part, to adapt to the shape of shoe;Anti-skid sleeve is equipped with anti-skid surface at one end close to slide, and anti-skid surface can increase the friction between sliding frame and slide, improve the stability of sliding frame. Above all, the utility model has the beneficial effect that: it can be detected to friction plate and brake wheel cylinder specifically, reduce manufacturing cost, improve test efficiency, and simple structure, convenient to use.

[0031] Of course, the utility model can also have other various embodiments, without departing from the spirit and essence of the utility model, skilled in the art person when can make various corresponding changes and deformation according to the utility model, but these corresponding changes and deformation should all belong to the protection scope of the claims attached to the utility model.

Claims

1. A brake test fixture, characterized by, The installation plate is provided with symmetrically arranged shoes, one end of each of the shoes being rotatably connected to the installation plate, the other end of each of the shoes abutting against a wheel cylinder, an elastic member being arranged between the shoes, a plurality of friction plates being arranged on the side of each of the shoes away from the symmetric center, a sliding frame being slidably arranged on the installation plate and cooperating with the friction plates, and a test groove being arranged on the end of each of the sliding frames close to the shoes and cooperating with the shoes. A positioning rod is symmetrically arranged on the sliding frame, and a limiting member for limiting the position of the sliding frame is sleeved on the positioning rod.

2. The brake test fixture of claim 1, wherein, The installation plate is provided with symmetrically arranged sliding channels, and each of the sliding frames is slidably arranged on the sliding channel.

3. The brake test fixture of claim 2, wherein, An installation groove is arranged in each of the sliding frames, an anti-skid sleeve is symmetrically arranged in the installation groove, and an anti-skid surface is arranged on the end of the anti-skid sleeve close to the sliding channel.

4. The brake test fixture of claim 3, wherein, A locking rod is elastically connected in each of the anti-skid sleeves, a plurality of locking holes are arranged on the sliding channel and cooperating with the locking rods, and the locking rod is threadedly connected to the locking hole.

5. The brake test fixture of claim 4, wherein, A plug is symmetrically arranged on the locking rod, an insertion slot cooperating with the plug is arranged on the anti-skid sleeve, the plug is slidably arranged in the insertion slot, and a supporting spring is arranged between the plug and the insertion slot.

6. The brake test fixture of claim 1, wherein, An adjusting member cooperating with the shoes is symmetrically arranged on the installation plate, and the adjusting member is connected to the installation plate through a connecting member.

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