Brake for rail transit

Abstract

The utility model discloses a rail transit brake which comprises a brake iron core and a pole shoe, the pole shoe is installed below the brake iron core, the rail transit brake further comprises a check block mechanism, and the check block mechanism comprises a side fixing plate, an L-shaped connecting frame, a trapezoid supporting plate, a supporting rubber table, a buffering inner rubber block, a fixed inserting plate, an upper installing plate, a supporting rubber plate and a buffering outer rubber plate. Side fixing plates are symmetrically fixed to the two ends of the brake iron core, a stop block mechanism is arranged at the position, above the pole shoe, of the brake iron core, and the stop block mechanism can assemble a structure for protecting the pole shoe at the position of the brake iron core. The two-section type buffering structure formed by the buffering inner rubber block and the buffering outer rubber plate can block and protect the pole shoe, the structure can effectively absorb and disperse stone impact force, and the pole shoe of the brake is protected against damage caused by stone impact.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail transit technical field, especially rail transit brake. BACKGROUND

[0002] Rail transit is a kind of public transport travel tool in urbanization;The performance of rail transit brake directly influences the braking capacity of train, also is closely related to the safety and ease of use of train, when rail transit is in emergency braking, each brake magnetic track brake is arranged between the two wheels of the two sides under bogie frame, it is put down and utilizes electromagnetic attraction to compress steel rail when braking, generates braking force through the sliding friction between wear plate on electromagnet and steel rail, and emergency braking is carried out.

[0003] Publication (announcement) number: CN107650942B proposes a kind of magnetic track brake and magnetic levitation train, the magnetic track brake is arranged on the magnetic levitation train with rectangular track, the magnetic track brake includes iron core unit, excitation coil is wound on the side of the iron core unit towards the rectangular track, opposite sides of the iron core unit are connected with side plate unit, one end of the side plate unit towards the rectangular track is connected with outer pole shoe unit, the excitation coil is set as multiple along relative to the side plate unit direction, the iron core unit is connected with multiple inner pole shoes towards the side of the rectangular track, the inner pole shoe is set corresponding with excitation coil along relative to the side plate unit direction;The magnetic levitation train is provided with the magnetic track brake of preceding description.

[0004] At present, rail transit can be through magnetic track brake when braking emergency braking, usually with the pole shoe under the core and steel rail contact to cooperate magnetic attraction and carry out friction braking, the pole shoe of magnetic track brake is usually made of high-strength, wear-resistant material and has impact resistance, although the pole shoe of magnetic track brake has certain impact resistance, but in extreme conditions, such as high hardness, large stone is impacted at high speed, the pole shoe can still be damaged, thereby affecting the safe braking of magnetic track brake, for this purpose, we propose a kind of rail transit brake. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of rail transit brakes, the stop block mechanism is set at the brake iron core above pole shoe, stop block mechanism can be assembled to protect the structure of pole shoe at brake iron core, when pole shoe encounters stone in the process of high-speed running of rail transit vehicle, two-stage buffer structure of buffer inner rubber block and buffer outer rubber plate can protect pole shoe, this structure can effectively absorb and disperse stone impact force, protect the pole shoe of brake from being damaged by stone impact, can effectively solve the problems in background art.

[0006] To achieve the above object, the technical scheme adopted by the utility model is:

[0007] The rail transit brake comprises a brake core and a pole shoe, the pole shoe is installed below the brake core, and further comprises a stop block mechanism, the stop block mechanism comprises a side fixing plate, an L-shaped connecting frame, a trapezoidal supporting plate, a supporting rubber base, a buffer inner rubber block, a fixed insertion plate, an upper mounting plate, a supporting rubber plate and a buffer outer rubber plate, the side fixing plate is symmetrically fixed at both ends of the brake core, the outer plate surface of the side fixing plate is symmetrically fixed downward from top to bottom with the trapezoidal supporting plate and the supporting rubber base through the L-shaped connecting frame, the body of the supporting rubber base is externally bonded with the buffer inner rubber block, the frame body between the trapezoidal supporting plate close to the supporting rubber base is clamped with the fixed insertion plate, the fixed insertion plate is fixed on the lower surface of the upper mounting plate, the upper mounting plate on one side of the fixed insertion plate is locked with the upper surface of the brake core through a bolt, the supporting rubber plate for inserting into the buffer outer rubber plate for supporting is fixed below the upper mounting plate on one side of the trapezoidal supporting plate, and the buffer outer rubber plate is bonded with the supporting rubber plate.

[0008] Further, the body of the supporting rubber base is symmetrically protruded with a base rib on the outside, and a supporting groove is recessed on the surface of the buffer inner rubber block on one side of the supporting rubber base, the base rib is clamped and bonded in the groove body of the supporting groove;

[0009] By adopting the above technical scheme, the supporting rubber base can be clamped and bonded in the supporting groove of the buffer inner rubber block through the base rib, and the connection strength and stability between the supporting rubber base and the buffer inner rubber block are enhanced.

[0010] Further, a slanting pressing groove is recessed on the surface of the plate body of the buffer outer rubber plate, and the buffer inner rubber block is clamped and inclined in the slanting pressing groove;

[0011] By adopting the above technical scheme, the slanting pressing groove of the buffer outer rubber plate can be clamped and positioned with the buffer inner rubber block, and the buffer outer rubber plate can be pressed on the buffer inner rubber block to form a two-section buffer structure when the buffer outer rubber plate is stressed, thereby providing effective buffering.

[0012] Further, the vertical plate surface of the trapezoidal supporting plate is fixed on the outer side of the vertical frame plate of the L-shaped connecting frame, and the supporting rubber base is fixed on the surface of the bottom frame plate of the L-shaped connecting frame;

[0013] By adopting the above technical scheme, the vertical frame plate and the bottom frame plate of the L-shaped connecting frame can be respectively fixed with the trapezoidal supporting plate and the supporting rubber base for connection.

[0014] Further, the L-shaped connecting frame and the side fixing plate are provided with threaded holes on the surface between the trapezoidal supporting plate and the supporting rubber base, and the threaded holes between the L-shaped connecting frame and the side fixing plate are locked through a bolt;

[0015] By adopting the above technical scheme, the threaded holes between the L-shaped connecting frame and the side fixing plate can be screwed with the bolt, so that the L-shaped connecting frame is fixed on the side fixing plate.

[0016] Further, a threaded hole is formed between the upper mounting plate and the upper surface of the brake core, and the upper mounting plate is locked with the threaded hole of the brake core by a bolt, and a plate groove for inserting and bonding the supporting rubber plate is formed on the surface of the buffer outer rubber plate below the upper mounting plate.

[0017] By adopting the above technical scheme, after the threaded hole of the upper mounting plate and the brake core is screwed with the bolt, the upper mounting plate can be installed at the brake core, and then the supporting rubber plate of the upper mounting plate can be inserted into the plate groove of the buffer outer rubber plate to be firmly bonded.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model discloses a brake core is provided with the buffer structure of buffer inner rubber block and buffer outer rubber plate, and the buffer structure can protect the pole shoe when the pole shoe encounters the stone in the high -speed operation process of rail transit vehicle, and the buffer structure can effectively absorb and disperse the impact force of stone, so that the pole shoe of the brake is not damaged by the impact of stone.

[0020] And the connecting strength and stability of the two are enhanced, and meanwhile, the inclined pressing groove of the buffer outer rubber plate is clamped in the buffer inner rubber block to be positioned, so that the buffer outer rubber plate can obtain effective buffering when being impacted by the stone. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 It is the whole structure schematic diagram of the utility model discloses a kind of brake for rail transit.

[0022] Fig. 2 It is the split schematic diagram of the utility model discloses a kind of upper mounting plate and brake core for rail transit.

[0023] Fig. 3 It is the explosion view of the utility model discloses a kind of block mechanism for rail transit brake.

[0024] In the drawing: 1, brake core;2, pole shoe;3, block mechanism;4, side fixed plate;5, L-shaped connecting frame;6, trapezoidal supporting plate;7, supporting rubber platform;8, buffer inner rubber block;9, fixed insertion plate;10, upper mounting plate;11, supporting rubber plate;12, buffer outer rubber plate;13, supported groove;14, inclined pressing groove. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0026] For example, Figs. 1-3As shown, a kind of rail transit brake, including brake core 1 and pole shoe 2, the pole shoe 2 is installed below the brake core 1, further include stop block mechanism 3, the stop block mechanism 3 includes side fixed plate 4, L-shaped connecting frame 5, trapezoidal support plate 6, support rubber platform 7, buffer inner rubber block 8, fixed plug plate 9, upper mounting plate 10, support rubber plate 11 and buffer outer rubber plate 12, the both ends of the brake core 1 are fixed with side fixed plate 4 symmetrically, and the outer plate surface of side fixed plate 4 is fixed with trapezoidal support plate 6 and support rubber platform 7 from top to bottom symmetrically by L-shaped connecting frame 5, the platform body of support rubber platform 7 is fixed with buffer inner rubber block 8 by bonding outside, the frame body between trapezoidal support plate 6 close to support rubber platform 7 is clamped with fixed plug plate 9, and fixed plug plate 9 is fixed on the lower surface of upper mounting plate 10, the upper mounting plate 10 of one side of fixed plug plate 9 is locked with the upper surface of brake core 1 by bolt, the lower side of the upper mounting plate 10 of one side of trapezoidal support plate 6 is fixed with support rubber plate 11 for inserting into buffer outer rubber plate 12 to support, and buffer outer rubber plate 12 is fixed with support rubber plate 11 by bonding.

[0027] Wherein, the platform body of support rubber platform 7 is symmetrically protruded with platform rib outside, and the surface of buffer inner rubber block 8 of one side of support rubber platform 7 is recessed to set support groove 13, the platform rib is clamped and bonded in the groove body of support groove 13;

[0028] By adopting the above technical scheme, support rubber platform 7 can be clamped and bonded in support groove 13 of buffer inner rubber block 8 by platform rib, so as to enhance the connection strength and stability between support rubber platform 7 and buffer inner rubber block 8.

[0029] Wherein, the surface of plate body of buffer outer rubber plate 12 is recessed to set inclined pressing groove 14, and buffer inner rubber block 8 is inclined clamped in inclined pressing groove 14;

[0030] By adopting the above technical scheme, inclined pressing groove 14 of buffer outer rubber plate 12 can be clamped in buffer inner rubber block 8 to be positioned and connected, and buffer outer rubber plate 12 can be pressed on buffer inner rubber block 8 to form two-section buffer structure when being stressed, so as to provide effective buffer.

[0031] Wherein, the vertical plate surface of trapezoidal support plate 6 is fixed outside the vertical frame plate of L-shaped connecting frame 5, and support rubber platform 7 is fixed on the surface of bottom frame plate of L-shaped connecting frame 5;

[0032] By adopting the above technical scheme, the vertical frame plate and bottom frame plate of L-shaped connecting frame 5 can be fixed with trapezoidal support plate 6 and support rubber platform 7 respectively to be connected.

[0033] Wherein, the surface of L-shaped connecting frame 5 and side fixed plate 4 between trapezoidal support plate 6 and support rubber platform 7 is provided with threaded hole, and the threaded hole between L-shaped connecting frame 5 and side fixed plate 4 is locked by bolt;

[0034] By adopting the technical scheme, the threaded hole between the L-shaped connecting bracket 5 and the side fixing plate 4 can be screwed with a bolt, so that the L-shaped connecting bracket 5 is fixed at the side fixing plate 4.

[0035] The threaded hole is arranged between the upper mounting plate 10 and the upper surface of the brake core 1, and the upper mounting plate 10 is locked with the threaded hole of the brake core 1 by a bolt.

[0036] By adopting the technical scheme, the threaded hole between the L-shaped connecting bracket 5 and the side fixing plate 4 can be screwed with a bolt, so that the L-shaped connecting bracket 5 is fixed at the side fixing plate 4.

[0037] It should be noted that the utility model is a kind of brake for rail transit, and the stop block mechanism 3 is arranged at the brake core 1 above pole shoe 2, the side fixing plate 4 of stop block mechanism 3 is fixed outside brake core 1, then L-shaped connecting bracket 5 can be fixed outside side fixing plate 4 by bolt, then upper mounting plate 10 is inserted between L-shaped connecting bracket 5 by fixed plate 9, and buffer outer rubber block 12 is clamped outside buffer inner rubber block 8 by inclined pressing groove 14, and upper mounting plate 10 can be locked outside brake core 1 by bolt, when brake core 1 is installed in the lifting air cylinder for braking of rail transit, when brake core 1 encounters stone in the process of high-speed running of rail vehicle, stone will impact buffer outer rubber block 12 in advance, then buffer inner rubber block 8 is pressed under buffer outer rubber block 12 to form two-section buffer, and buffer inner rubber block 8 is supported by trapezoidal support plate 6 at L-shaped connecting bracket 5 and side fixing plate 4, and buffer inner rubber block 8 and buffer outer rubber block 12 are internally supported, so that brake core 1 and pole shoe 2 are impacted by stone near track, effective protection is provided by stop block mechanism, to avoid pole shoe 2 from being damaged by stone impact, and when pole shoe 2 is lowered to contact track, buffer outer rubber block 12 can be bounced from buffer inner rubber block 8, to ensure that pole shoe 2 can smoothly contact track for normal braking.

[0038] It should be noted that the utility model is a kind of brake for rail transit, and the utility model is known to those skilled in the art, and its structure and principle are known to those skilled in the art.

[0039] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A rail transit brake comprising a brake core (1) and a pole shoe (2), the pole shoe (2) being installed below the brake core (1), characterized in that: Also include the stop block mechanism (3), the stop block mechanism (3) includes side fixed plate (4), L-shaped connecting frame (5), trapezoidal support plate (6), support rubber platform (7), buffer inner rubber block (8), fixed insertion plate (9), upper mounting plate (10), support rubber plate (11) and buffer outer rubber plate (12), both ends of the brake core (1) are symmetrically fixed with side fixed plate (4), and the outer plate surface of the side fixed plate (4) is symmetrically fixed with the trapezoidal support plate (6) and the support rubber platform (7) from top to bottom through the L-shaped connecting frame (5), the body of the support rubber platform (7) is bonded and fixed with the buffer inner rubber block (8), the frame body between the trapezoidal support plate (6) close to the support rubber platform (7) is clamped with the fixed insertion plate (9), and the fixed insertion plate (9) is fixed on the lower surface of the upper mounting plate (10), the upper mounting plate (10) on one side of the fixed insertion plate (9) is locked with the upper surface of the brake core (1) through bolts, the support rubber plate (11) for inserting into the buffer outer rubber plate (12) for support is fixed below the upper mounting plate (10) on one side of the trapezoidal support plate (6), and the buffer outer rubber plate (12) is bonded and fixed with the support rubber plate (11).

2. The brake for rail transit according to claim 1, characterized in that: The outer side of the body of the support rubber platform (7) is symmetrically protruded with a platform rib, and the surface of the buffer inner rubber block (8) on one side of the support rubber platform (7) is recessed to form a supported groove (13), and the platform rib is clamped and bonded in the groove body of the supported groove (13).

3. The brake for rail transit according to claim 1, characterized in that: The surface of the plate body of the buffer outer rubber plate (12) is recessed to form an inclined pressing groove (14), and the buffer inner rubber block (8) is inclined and clamped in the inclined pressing groove (14).

4. The brake for rail transit according to claim 1, characterized in that: The vertical plate surface of the trapezoidal support plate (6) is fixed outside the vertical frame plate of the L-shaped connecting frame (5), and the support rubber platform (7) is fixed on the surface of the bottom frame plate of the L-shaped connecting frame (5).

5. The brake for rail transit according to claim 1, wherein: The L-shaped connecting frame (5) and the surface of the side fixed plate (4) between the trapezoidal support plate (6) and the support rubber platform (7) are provided with threaded holes, and the threaded holes of the L-shaped connecting frame (5) and the side fixed plate (4) are locked by bolts.

6. The brake for rail transit according to claim 1, characterized in that: Threaded holes are formed between the upper surface of the brake core (1) and the upper mounting plate (10), and the threaded holes between the upper mounting plate (10) and the brake core (1) are locked by bolts, and a plate groove for inserting and bonding the support rubber plate (11) is recessed on the surface of the buffer outer rubber plate (12) below the upper mounting plate (10).

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