Railway independent braking device

Abstract

The utility model relates to the technical field of railway vehicle braking, and particularly discloses a railway independent braking device which comprises a braking clamping plate, the middle portion of the braking clamping plate is connected with a supporting plate through a center shaft, and the top end of the supporting plate is installed on a lower supporting platform. The top of the brake clamping plate is connected with a lifting frame through a connecting shaft. The lifting frame is connected with an electric telescopic mechanism used for driving the lifting frame to move up and down. The first brake plate and the second brake plate are arranged at the top of the lower inclined plane of the I-shaped track and at the connecting area of the lower inclined plane and the vertical plane, and the connecting area is different from the top of the I-shaped track, so that in the running process, friction with wheels of a train is avoided, and the safety of the train is improved. Therefore, the rough surface arranged for increasing the friction force is not easily abraded by the normally running wheel, the braking effect is better, and the rough surface is not in contact with the wheel during braking, so that the rough surface can be suitable for quick braking work under the two conditions that the train wheel continues to rotate and the train wheel stops rotating.

Description

TECHNICAL FIELD

[0001] The utility model belongs to railway vehicle brake technical field, concretely relates to a railway independent brake device. BACKGROUND

[0002] Train braking is to artificially stop the movement of the train, including slowing down, not accelerating or stopping running.

[0003] In the Chinese patent with the publication number CN 219295403 U, a simple installation type railway locomotive emergency brake device is disclosed, which comprises a positioning plate installed beside the railway locomotive wheel through bolts, a positioning groove sleeved on the positioning block, a motor started, the motor drives the first threaded rod and the second threaded rod to rotate, and a pair of moving blocks are driven to approach each other through the threaded cooperation of the first threaded rod, the second threaded rod and the pair of moving blocks, the vertical block is driven to move through the fixed rod, and the clamping block is inserted into the rectangular groove through the positioning groove, so that the shell and the limiting bin are fixed, when the railway locomotive needs to be braked, the hydraulic cylinder is started, the brake block and the brake pad are pushed to tightly adhere to the wheel, and the friction force is used to brake;

[0004] However, there are two different situations when the train brakes, one of which is that the wheel continues to rotate, which is mainly electrical braking, during which the train wheel continues to rotate, slowly slows down and then gradually stops, and the other is that the wheel stops rotating and relies on friction to brake. If the train wheel is in the second case, the wheel stops rotating after braking, that is, in a stopped state, the above device cannot move relative to the wheel even if it is started, which leads to the train being unable to stop normally, and the above device has great limitations. Therefore, the present application provides a railway independent brake device which can brake in both cases of train wheel rotation and train wheel stop. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a railway independent brake device to solve the problems in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme, a railway independent brake device, comprising a brake clamp plate, the middle part of the brake clamp plate is connected with a support plate through a center shaft, and the top end of the support plate is installed on a lower support platform;

[0007] The top of the brake clamp plate is connected with a lifting frame through a connecting shaft, the lifting frame is connected with a power telescopic mechanism for driving it to move up and down, the power telescopic mechanism is installed on an upper support platform, and a plurality of round rods are connected between the lower support platform and the upper support platform;

[0008] The first brake plate and the second brake plate are installed at the bottom of the brake clamp. The first brake plate is arranged at the top area of ​​the lower slope of the I-shaped rail, and the second brake plate is located at the position where the lower slope and the vertical surface of the I-shaped rail are connected.

[0009] Preferably, two brake clamps are provided, and the two brake clamps are respectively located on both sides of the I-rail.

[0010] Preferably, the support plate is connected to the central shaft via a bearing, and the connecting shaft is connected to the lifting frame via a bearing.

[0011] Preferably, the first brake plate is inserted into the first mounting groove in the brake clamp plate, and the first brake plate and the brake clamp plate are plugged together via an insert block.

[0012] Preferably, the second brake plate is inserted into a second mounting groove in the brake clamp plate, and is connected to the brake clamp plate via bolts.

[0013] Preferably, a guide groove is provided at a position of the lower supporting platform corresponding to the lifting frame, the lifting frame is inserted into the guide groove, and the two can slide up and down relative to each other.

[0014] Preferably, a square rod is fixedly mounted on the lower end of the lifting frame, the square rod penetrates the lower supporting platform, and fits into the square hole in the lower supporting platform.

[0015] Preferably, a protection unit is provided between the electric telescopic mechanism and the lifting frame, and the protection unit includes a protection plate, which is connected to the output end of the electric telescopic mechanism, inserted into the guide member, and a protection spring is installed between the protection plate and the inner wall of the guide member.

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

[0017] The first and second brake plates are arranged at the top of the lower inclined surface of the I-shaped rail and at the area where the lower inclined surface is connected to the vertical surface, which is different from the top of the I-shaped rail. During travel, the first and second brake plates will not rub against the wheels of the train. Therefore, the rough surface provided for increasing friction is not easily worn by the wheels in normal travel, and the braking effect is better. During braking, the first and second brake plates do not contact the wheels, so the first and second brake plates can be applied to both the situation where the train wheels continue to rotate and the situation where the train wheels stop rotating.

[0018] The utility model discloses a protection unit is arranged between electric telescopic mechanism and lifting frame, and the protection unit includes protection board, protection spring and the like component, and the protection board can be up and down with guide piece and displace a section, if electric telescopic mechanism displacement is too big, the existence of protection spring lets the brake clamp board when receiving excessive force, can lift to a certain extent, avoids damaging electric telescopic mechanism because of excessive friction, can effectively protect the internal component of device. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of railway separate brake device in the utility model.

[0020] Figure 2 It is a structure schematic view of railway separate brake device in the utility model.

[0021] Figure 3 It is a structure schematic view of railway separate brake device in the utility model.

[0022] Figure 4 It is a structure schematic view of railway separate brake device in the utility model. Figure 3 It is a structure schematic view of A place in the utility model.

[0023] Figure 5 It is a structure schematic view of railway separate brake device in the utility model.

[0024] Figure 6 It is a structure schematic view of B place in the utility model. Figure 5

[0025] In the drawing: 1, brake clamp board;101, center shaft;102, first brake plate;103, second brake plate;104, insert block;105, bolt;2, I rail track;202, lower inclined surface;203, vertical surface;3, support plate;4, connecting shaft;5, lifting frame;6, lower support platform;601, guide groove;7, upper support platform;8, electric telescopic mechanism;9, square bar;11, protection unit;1101, protection board;1102, protection spring. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0027] Reference Figures 1-6 ​A railway independent braking device includes two brake cleats 1, one located on either side of an I-shaped rail 2, the middle portion of each brake cleat 1 connected to a support plate 3 via a central axis 101. Specifically, the support plate 3 is connected to the central axis 101 via a bearing, and the top of the support plate 3 is mounted on a lower support platform 6.

[0028] It should be noted that the top of the brake clamp 1 is connected to the lifting frame 5 through the connecting shaft 4, the connecting shaft 4 and the lifting frame 5 are connected through bearings, the lifting frame 5 is connected to the electric telescopic mechanism 8 for driving it to move up and down, the electric telescopic mechanism 8 is installed on the upper support platform 7, and the lower support platform 6 and the upper support platform 7 are connected by multiple round rods.

[0029] When the electric telescopic mechanism 8 is activated, it can drive the lifting frame 5 to move up and down. The lifting frame 5 can push the two brake clamps 1 to rotate around their respective central axes 101 through the connecting shaft 4. The electric telescopic mechanism 8 is electrically driven, that is, an electric telescopic rod, which has a fast response speed and can cooperate with the brake clamps 1 and other components to stop the train quickly.

[0030] Specifically, the electric telescopic mechanism 8 drives the lifting frame 5 to move upward, and the lifting frame 5 pulls the brake clamp 1 to rotate around the central axis 101. The brake clamp 1 is divided into an upper part and a lower part with the central axis 101 as the boundary. The upper part rotates upward and the lower part rotates downward. At this time, the two brake clamps 1 are close to the I-rail 2 in the middle, and the first brake plate 102 and the second brake plate 103 on the brake clamp 1 are in contact with the I-rail 2. Relying on the mutual friction between the two, the train on the I-rail 2 is stopped. Conversely, the electric telescopic mechanism 8 drives the lifting frame 5 to move downward, and the lifting frame 5 drives the brake clamp 1 to rotate around the central axis 101 through the connecting shaft 4. The upper part of the brake clamp 1 rotates downward, and its lower part rotates upward. The two brake clamps 1 are away from the I-rail 2 in the middle, and the train can now travel normally.

[0031] In a further embodiment, a first brake plate 102 and a second brake plate 103 are installed at the bottom of the brake clamp 1. The first brake plate 102 is arranged at the top area of ​​the lower inclined surface 202 in the I-shaped rail 2, and the second brake plate 103 is located at the position where the lower inclined surface 202 and the vertical surface 203 in the I-shaped rail 2 are connected. The first brake plate 102 and the second brake plate 103 are arranged at the top of the lower inclined surface 202 of the I-shaped rail 2 and the area where the lower inclined surface 202 and the vertical surface 203 are connected. Unlike the top of the I-shaped rail 2, this area does not rub against the wheels of the train during travel. Therefore, the rough surface provided at this area to increase friction is not easily worn by the wheels during normal travel, and the braking effect is better.

[0032] It should be noted that the first brake plate 102 is inserted into the first mounting groove in the brake clamp 1, and the first brake plate 102 and the brake clamp 1 are connected through the plug block 104, and the second brake plate 103 is inserted into the second mounting groove in the brake clamp 1, and it is connected to the brake clamp 1 through the bolt 105. The above two are connected by the plug block 104 and the bolt 105, which is convenient for loading and unloading.

[0033] In a further embodiment, a guide groove 601 is provided at a position of the lower supporting platform 6 corresponding to the lifting frame 5. The lifting frame 5 is inserted into the guide groove 601, and the two can slide up and down relative to each other. It should be noted that a square rod 9 is fixedly installed at the lower end of the lifting frame 5. The square rod 9 penetrates the lower supporting platform 6 and fits into the square hole in the lower supporting platform 6. The guide groove 601, the square rod 9, the square hole and other components are provided to provide guidance for the movement of the lifting frame 5, so that it can slide smoothly when moving up and down.

[0034] If the electric telescopic mechanism 8 is directly connected to the brake clamp 1 through the lifting frame 5, if the brake clamp 1 moves a distance that is too large, it will cause the friction force it bears to be too large, which may easily cause damage to the electric telescopic mechanism 8 and other components. Therefore, a protective unit 11 is provided between the electric telescopic mechanism 8 and the lifting frame 5. The protective unit 11 includes a protective plate 1101. The protective plate 1101 is connected to the output end of the electric telescopic mechanism 8. The protective plate 1101 is inserted into the guide member, and a protective spring 1102 is installed between the protective plate 1101 and the inner wall of the guide member, that is, the protective plate 1101 and the guide member can be displaced up and down. If the electric telescopic mechanism 8 is displaced too much, the presence of the protective spring 1102 allows the brake clamp 1 to be lifted to a certain extent when subjected to excessive force, thereby avoiding damage to the electric telescopic mechanism 8 due to excessive friction.

[0035] Working principle:

[0036] The electric retractable mechanism 8 is activated, driving the lifting frame 5 upward. The lifting frame 5 pulls the brake cleats 1 to rotate about the central axis 101. The brake cleats 1 are divided into upper and lower parts with the central axis 101 as the boundary. The upper part rotates upward while the lower part rotates downward. At this time, the two brake cleats 1 approach the I-rail 2 in the middle. The first brake plate 102 and the second brake plate 103 on the brake cleats 1 contact the I-rail 2. The mutual friction between the brake plates 1 stops the train on the I-rail 2.

[0037] On the contrary, the electric telescopic mechanism 8 drives the lifting frame 5 to move downward, and the lifting frame 5 drives the brake clamp 1 to rotate around the central axis 101 through the connecting shaft 4. The upper part of the brake clamp 1 rotates downward, while the lower part rotates upward. The two brake clamps 1 move away from the middle I-rail 2, and the train can now run normally.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A railway independent braking device, comprising a brake clamp (1), characterized in that: The middle portion of the brake clamp (1) is connected to the support plate (3) via a central axis (101), and the top end of the support plate (3) is mounted on the lower support platform (6); The top of the brake clamp (1) is connected to a lifting frame (5) via a connecting shaft (4); the lifting frame (5) is connected to an electric telescopic mechanism (8) for driving the lifting frame to move up and down; the electric telescopic mechanism (8) is installed on an upper support platform (7); and the lower support platform (6) and the upper support platform (7) are connected via a plurality of round rods; A first brake plate (102) and a second brake plate (103) are installed at the bottom of the brake clamp (1); the first brake plate (102) is arranged at the top area of ​​the lower inclined surface (202) in the I-shaped track (2); and the second brake plate (103) is located at a position where the lower inclined surface (202) and the vertical surface (203) in the I-shaped track (2) are connected.

2. A railway independent braking device according to claim 1, characterized in that: Two brake clamps (1) are provided, and the two brake clamps (1) are respectively located on both sides of the I-shaped rail (2).

3. The railway independent braking device according to claim 1, characterized in that: The support plate (3) and the central shaft (101) are connected via a bearing, and the connecting shaft (4) and the lifting frame (5) are connected via a bearing.

4. A railway independent braking device according to claim 1, characterized in that: The first brake plate (102) is inserted into the first mounting groove in the brake clamp plate (1), and the first brake plate (102) and the brake clamp plate (1) are plugged together via an insert block (104).

5. A railway independent braking device according to claim 4, characterized in that: The second brake plate (103) is inserted into the second mounting groove in the brake clamp plate (1), and is connected to the brake clamp plate (1) via bolts (105).

6. The railway independent braking device according to claim 1, characterized in that: A guide groove (601) is provided at a position of the lower supporting platform (6) corresponding to the lifting frame (5), and the lifting frame (5) is inserted into the guide groove (601), and the two can slide relative to each other up and down.

7. A railway independent braking device according to claim 6, characterized in that: A square rod (9) is fixedly mounted on the lower end of the lifting frame (5), and the square rod (9) penetrates the lower supporting platform (6) and fits into the square hole in the lower supporting platform (6).

8. The railway independent braking device according to claim 1, characterized in that: A protection unit (11) is provided between the electric telescopic mechanism (8) and the lifting frame (5), and the protection unit (111) comprises a protection plate (1101). The protection plate (1101) is connected to the output end of the electric telescopic mechanism (8), the protection plate (1101) is inserted into the guide member, and a protection spring (1102) is installed between the protection plate (1101) and the inner wall of the guide member.

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