New energy locomotive composition brake shoe structure

Abstract

The utility model provides a new energy locomotive composition brake shoe structure which comprises a shoe holder and a brake shoe body connected with the shoe holder, the brake shoe body comprises a friction body and a shoe back arranged on the side portion of the friction body, the friction body and the shoe back are integrally formed, and at least one material grabbing claw used for being inserted into the friction body and connected with the friction body is arranged on the shoe back. According to the brake shoe structure, the defect that in the prior art, a friction body can generate displacement in the long-time braking process, and consequently friction noise is generated in the friction braking process can be overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of brake shoes, and in particular to a composite brake shoe structure for a new energy locomotive. Background Art

[0002] Brake shoes are brake parts that directly rub against the wheels to stop the train when the train is running. It is usually a shoe-shaped brake block made of cast iron or other materials. It holds the wheel tread tightly during braking and stops the wheel from rotating through friction. The main function of the brake shoe is to generate enough friction so that the train can slow down and stop safely and effectively. Friction noise is often accompanied by friction braking of the vehicle. The essence of noise is the vibration or displacement of the object. In the prior art, the shoe brake is composed of a friction body made of flexible material and a shoe back made of rigid material. However, the friction body will be displaced during a long period of braking, which will cause the friction body and the shoe back to separate or displace, resulting in friction noise during friction braking. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defect in the prior art that the friction body will be displaced during a long braking process, resulting in friction noise during friction braking, thereby providing a new energy locomotive synthetic brake shoe structure with high connection strength and good sound-absorbing performance.

[0004] To this end, the utility model provides a composite brake shoe structure for a new energy locomotive, the brake shoe structure comprising a shoe support and a brake shoe body connected to the shoe support, the brake shoe body comprising an integrally formed friction body and a shoe back arranged on the side of the friction body, the shoe back is provided with at least one grabbing claw for being inserted into the friction body and connected to the friction body, and the grabbing claw is arranged in a petal shape.

[0005] Furthermore: a side of the shoe back facing away from the shoe support forms a positioning space for clamping the friction body, and a side of the friction body facing away from the shoe back extends out of the positioning space and can contact the tire sidewall.

[0006] Furthermore: the grabbing claw includes grabbing holes distributed in a circular structure and a plurality of grabbing blocks distributed in a circumferential structure along the grabbing holes, and the grabbing blocks are inserted into the friction body and connected to the friction body.

[0007] Furthermore: a positioning structure is arranged between the tile back and the tile support, and the positioning structure comprises a positioning block arranged on one side of the tile back or the tile support and a positioning groove matched with the positioning block.

[0008] Furthermore: a connecting component is arranged between the tile back and the tile support, and the connecting component includes a tile nose arranged on one side of the tile back or the tile support and a groove for the tile nose to be inserted into and connected with the tile nose.

[0009] Furthermore: the positioning block is located on the tile back and is arranged on both sides of the tile nose, and the material grabbing claw is arranged between the positioning block and the tile nose.

[0010] The technical solution of the utility model has the following advantages:

[0011] 1. The utility model provides a composite brake shoe structure for new energy locomotives, in which the shoe back and the friction body are integrally injection molded. The friction body is mainly made of adhesive materials, reinforcing fibers, friction components and other materials, which are mixed, molded and heat treated. During the forming process, the friction body is directly injected into the side of the brake shoe body facing away from the shoe support, and the material of the friction body will directly fill the area around the grab claws. By setting the grab claws, the contact area of ​​the friction shoe body can be increased, thereby making the brake shoe body and the friction body more closely connected. This is superior to the prior art, improves the connection strength of the friction shoe body, and avoids the friction body from separating from the brake shoe body after long-term use, thereby causing noise when braking.

[0012] 2. The utility model provides a composite brake shoe structure for new energy locomotives, wherein a positioning space for clamping a friction body is formed on the side of the shoe back facing away from the shoe support, and extension strips are provided on both sides of the shoe back. In order for the friction body and the shoe back to be compatible with the tire sidewall, the friction body and the shoe back are both arranged in an arc-shaped structure, and the cross-section of the shoe back and the two extension strips constitute a "["-shaped structure. By means of the extension strips and the setting of the grabbing claws, the friction body and the shoe back can be tightly connected together, and by means of the setting of the extension strips, the installation position of the friction body can be effectively and quickly located, and the extension strips can play a limiting role when the friction body is being formed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the connection structure between the brake shoe body and the shoe support;

[0015] Figure 2 It is a schematic diagram of the connection structure between the brake shoe body and the shoe support;

[0016] Figure 3 This is the structural diagram of the tile back;

[0017] Figure 4 This is a cross-sectional view of the internal structure of the tile back;

[0018] Figure 5This is a schematic diagram of the back structure of the tile back.

[0019] Description of reference numerals:

[0020] 1. Brake shoe support; 2. Brake shoe body; 21. Friction body; 22. Brake shoe back; 23. Grabbing claw; 231. Grabbing hole; 232. Grabbing block; 3. Positioning block; 4. Brake shoe nose; 41. Groove. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, 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 invention 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 invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0025] Example

[0026] The present embodiment provides a composite brake shoe structure for a new energy locomotive, wherein the brake shoe structure comprises a shoe support 1 and a brake shoe body 2 connected to the shoe support 1, wherein the brake shoe body 2 comprises an integrally formed friction body 21 and a shoe back 22 arranged on the side of the friction body 21, wherein the shoe back 22 is provided with at least one grabbing claw 23 for being inserted into the friction body 21 and connected to the friction body 21, and the grabbing claw 23 is arranged in a petal shape.

[0027] The above specific improvements are: Figure 1 and Figure 2 As shown, compared with the prior art, the shoe back 22 and the friction body 21 are integrally injection molded. The friction body 21 is mainly made of adhesive materials, reinforcing fibers and friction components, etc., which are mixed, molded and heat treated. During the forming process, the friction body 21 is directly injected into the side of the brake shoe body 2 facing away from the shoe support 1, and the material of the friction body 21 will directly fill the surrounding of the grab claws 23. Through the setting of the grab claws 23, the contact area between the friction body 21 and the brake shoe body 2 can be increased, so that the brake shoe body 2 and the friction body 21 are connected more closely, which is superior to the prior art, improves the connection strength between the friction body 21 and the brake shoe body 2, and avoids the friction body 21 from separating from the brake shoe body 2 after long-term use, thereby causing noise when braking. The thickness of the shoe back 22 is not less than 4 mm.

[0028] On the basis of the above embodiment: the side of the tile back 22 facing away from the tile support 1 forms a positioning space for clamping the friction body 21, and the side of the friction body 21 facing away from the tile back 22 extends out of the positioning space and can contact the tire sidewall.

[0029] The above specific improvements are: Figure 3-Figure 5 As shown, the side of the tile back 22 facing away from the tile support 1 forms a positioning space for clamping the friction body 21, and extension strips are provided on both sides of the tile back 22. In order to adapt to the tire sidewall, the friction body 21 and the tile back 22 are both arranged in an arc-shaped structure. The cross-section of the tile back 22 and the two extension strips constitute a "["-shaped structure. The extension strips cooperate with the setting of the grab claws 23 to tightly connect the friction body 21 and the tile back 22. The setting of the extension strips can effectively and quickly locate the installation position of the friction body 21. When the friction body 21 is formed, the extension strips can play a limiting role.

[0030] On the basis of the above embodiment: the grab claw 23 includes a grab hole 231 distributed in a circular structure and a plurality of grab blocks 232 distributed in a circumferential structure along the grab hole 231 , and the grab block 232 is inserted into the friction body 21 and connected to the friction body 21 .

[0031] The above specific improvements are: Figure 5As shown, there are 8 grabbing holes 231 and grabbing blocks 232, which are conducive to the firm combination of the friction body 21 and the shoe back 22 without damaging the bending strength of the brake shoe. The grabbing claw 23 is formed by the grabbing hole 231 and the grabbing blocks 232 distributed around the grabbing hole 231. The grabbing blocks 232 are arranged along the circumferential direction of the grabbing hole 231. Through the setting of the grabbing blocks 232, the contact area at the connection between the friction body 21 and the shoe back 22 can be effectively increased, thereby improving the connection strength between the friction body 21 and the shoe back 22.

[0032] On the basis of the above embodiment: a positioning structure is arranged between the tile back 22 and the tile support 1 , and the positioning structure comprises a positioning block 3 arranged on one side of the tile back 22 or the tile support 1 and a positioning groove matched with the positioning block 3 .

[0033] On the basis of the above embodiment: a connecting component is arranged between the tile back 22 and the tile support 1, and the connecting component includes a tile nose 4 arranged on one side of the tile back 22 or the tile support 1 and a groove 41 for the tile nose 4 to be inserted and connected with the tile nose 4.

[0034] On the basis of the above embodiment: the positioning block 3 is located on the tile back 22 and is arranged on both sides of the tile nose 4 , and the material grabbing claw 23 is arranged between the positioning block 3 and the tile nose 4 .

[0035] The above specific improvements are: Figure 3-Figure 5 As shown, the friction body 21 directly rubs against the wheel to absorb the kinetic energy of the locomotive, and the tile back 22 will bear a large radial shear stress. The tile back 22 is formed by stamping an integral steel plate and is welded to the tile back 22, the tile nose 4 and the positioning block 3 to form a whole. During the brake shoe forming process, the friction body 21 can be firmly grasped, thereby increasing the shear capacity of the friction body 21 and the tile back 22, and ensuring that the friction body 21 will not fall off during repeated and frequent braking. Through the setting of the positioning block 3 and the positioning groove, when connecting the tile back 22 and the tile support 1, it is only necessary to insert the tile nose 4 into the groove 41 and insert the positioning block 3 into the positioning groove at the same time. Therefore, even after the tile back 22 has been used for a long time, since the positioning block 3 is stuck in the positioning groove, the tile back 22 can be effectively prevented from moving, thereby preventing the friction body 21 from generating noise due to displacement after long-term use.

[0036] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A composite brake shoe structure for a new energy locomotive, characterized in that: The brake shoe structure comprises a shoe support (1) and a brake shoe body (2) connected to the shoe support (1); the brake shoe body (2) comprises an integrally formed friction body (21) and a shoe back (22) arranged on the side of the friction body (21); the shoe back (22) is provided with at least one material grabbing claw (23) for being inserted into the friction body (21) and connected to the friction body (21); the material grabbing claw (23) is arranged in a petal shape.

2. A new energy locomotive composite brake shoe structure according to claim 1, characterized in that: The side of the tile back (22) facing away from the tile support (1) forms a positioning space for clamping the friction body (21), and the side of the friction body (21) facing away from the tile back (22) extends out of the positioning space and can contact the tire sidewall.

3. A new energy locomotive composite brake shoe structure according to claim 2, characterized in that: The material grabbing claw (23) comprises material grabbing holes (231) distributed in a circular structure and a plurality of material grabbing blocks (232) distributed in a circumferential structure along the material grabbing holes (231); the material grabbing blocks (232) are inserted into the friction body (21) and connected to the friction body (21).

4. A composite brake shoe structure for a new energy locomotive according to any one of claims 1 to 3, characterized in that: A positioning structure is provided between the tile back (22) and the tile support (1), and the positioning structure comprises a positioning block (3) provided on one side of the tile back (22) or the tile support (1) and a positioning groove matched with the positioning block (3).

5. The composite brake shoe structure for new energy locomotive according to claim 4 is characterized in that: A connection assembly is provided between the tile back (22) and the tile support (1), and the connection assembly comprises a tile nose (4) provided on one side of the tile back (22) or the tile support (1) and a groove (41) for the tile nose (4) to be inserted and connected to the tile nose (4).

6. A new energy locomotive composite brake shoe structure according to claim 5, characterized in that: The positioning block (3) is located on the tile back (22) and is arranged on both sides of the tile nose (4); the material grabbing claw (23) is arranged between the positioning block (3) and the tile nose (4).

Images