An impact piston

Abstract

The utility model belongs to the technical field of percussion piston for rock drill, specifically relates to a percussion piston, including the impact head, the one side of impact head is provided with the main part, the inside fixedly connected with reinforcing mechanism of main part, the surface of main part is provided with wear -resisting layer, among them, the main part includes the front part and the connecting part, the front part is fixedly connected with the tail part through the connecting part, the outside of connecting part is fixedly connected with first outer ring and second outer ring respectively, the inside of front part is seted up with the cavity, the utility model discloses can pass through by the impact head and the main part constitute the percussion piston body, and the percussion piston body passes through the cavity and makes it belong to hollow structure to make the installation of percussion piston and rock drill more convenient, can also reduce rock drill overall quality simultaneously, thereby improve the effect when using, can effectively improve the overall strength of percussion piston through the reinforcing mechanism of integral molding in the inside of main part, and then improve the service life of percussion piston.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of percussion piston for rock drill, specifically relates to a percussion piston. BACKGROUND

[0002] The percussion piston is one of the key components inside the rock drill, which is mainly responsible for generating impact force to break rocks. The working principle of the percussion piston is usually based on the energy provided by compressed air or other power sources (such as electric or hydraulic). When the power source is driven, the piston reciprocates in a sealed cylinder. In each downward stroke, the piston strikes a transmission rod or directly strikes a drill bit, thereby converting kinetic energy into impact force on the rock to achieve the effect of breaking the rock.

[0003] Problems of the prior art:

[0004] The existing percussion piston is usually solid structure, and the implementation of the percussion piston will make the mass of the rock drill larger, so that the impact of the rock drill is larger during the reciprocating movement of the percussion piston, and the existing percussion piston does not have a reinforcing structure, so that the strength of the percussion piston is insufficient, thereby affecting the service life of the percussion piston. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a percussion piston, which can solve the problem that the existing percussion piston has a solid structure, resulting in excessive mass during use, thereby affecting the use effect of the rock drill, and the percussion piston does not have a reinforcing structure, so that the structure is easily damaged due to insufficient strength after long-term use.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A percussion piston, comprising a percussion head;

[0008] One side of the percussion head is provided with a main body, the inside of the main body is fixedly connected with a reinforcing mechanism, and the surface of the main body is provided with a wear-resistant layer.

[0009] The main body comprises a front part and a connecting part, the front part is fixedly connected with a tail part through the connecting part, the outer part of the connecting part is fixedly connected with a first outer ring and a second outer ring respectively, and the inside of the front part is provided with a cavity.

[0010] The percussion head and the main body are integrally cast into shape, and the reinforcing mechanism is integrally formed with the main body.

[0011] The front part, the connecting part and the tail part are concentrically and diametrically connected.

[0012] The cavity penetrates through the main body and is fixedly connected with the percussion head, and the inner diameter of the percussion head is smaller than the cavity.

[0013] The first outer ring and the second outer ring are both provided with a plurality of, the plurality of first outer rings are located between the front part and the connecting part, and the plurality of second outer rings are located between the connecting part and the tail part.

[0014] The reinforcing mechanism comprises a reinforcing rib and a reinforcing rod, the reinforcing rib is internally fixedly connected with the reinforcing rod, the reinforcing rib is annular, and the reinforcing rod is triangular in structure.

[0015] The reinforcing rib and the reinforcing rod are both provided with a plurality of, the plurality of reinforcing ribs are arranged around the outside of the reinforcing rod.

[0016] The utility model discloses the technical effects achieved are:

[0017] The utility model discloses a rock drill, including the impact head of rock drill, the main part of rock drill, the drive structure of rock drill, the impact piston of rock drill, the reinforcing mechanism of rock drill, the wear -resisting layer of rock drill, the impact head is internally provided with through -hole, and the main part is internally provided with the cavity, and the main part is communicated with the cavity, and therefore makes the hollow structure of impact piston, and then makes the tail of main part and drive structure connection more convenient, and the installation of impact head and drill bit is also more convenient, and the quality of rock drill is lower to the hollow structure's impact piston, and then improves the use effect.

[0018] The utility model discloses a rock drill, including the impact head of rock drill, the main part of rock drill, the drive structure of rock drill, the impact piston of rock drill, the reinforcing mechanism of rock drill, the wear -resisting layer of rock drill, the impact head is internally provided with through -hole, and the main part is internally provided with the cavity, and the main part is communicated with the cavity, and therefore makes the hollow structure of impact piston, and then makes the tail of main part and drive structure connection more convenient, and the installation of impact head and drill bit is also more convenient, and the quality of rock drill is lower to the hollow structure's impact piston, and then improves the use effect. DRAWINGS

[0019] Figure 1 It is the overall structure perspective drawing of the utility model;

[0020] Figure 2 It is the overall structure analysis schematic view of the utility model;

[0021] Figure 3 It is the overall structure side view analysis schematic view of the utility model;

[0022] Figure 4 It is the reinforcing mechanism structure schematic view of the utility model.

[0023] In the drawings, the component list represented by each sign is as follows:

[0024] 1, impact head;2, main part;21, front part;22, connecting part;23, first outer ring;24, second outer ring;25, tail;26, cavity;3, reinforcing mechanism;31, reinforcing rib;32, reinforcing rod;4, wear -resisting layer. CONCRETE IMPLEMENTATION

[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0026] like Figures 1-4 As shown, an impact piston includes an impact head 1;

[0027] A main body 2 is provided on one side of the impact head 1, a reinforcing mechanism 3 is fixedly connected inside the main body 2, and a wear-resistant layer 4 is provided on the surface of the main body 2;

[0028] The main body 2 includes a front part 21 and a connecting part 22. The front part 21 is fixedly connected to the tail part 25 through the connecting part 22. The outer side of the connecting part 22 is fixedly connected with a first outer ring 23 and a second outer ring 24 respectively. The interior of the front part 21 is provided with a cavity 26.

[0029] See attached document Figure 1 and Figure 2 In this embodiment, the impact head 1 and the main body 2 are integrally cast, and the reinforcing mechanism 3 and the main body 2 are integrally formed.

[0030] In the above embodiment, the impact piston body can be formed by the integrally molded impact head 1, body 2 and reinforcement mechanism 3. The wear-resistant layer 4 provided on the surface of the body 2 and the reinforcement mechanism 3 inside the body 2 can effectively improve the overall strength and wear resistance of the impact piston.

[0031] Specifically, the wear-resistant layer 4 is composed of aluminum powder and is uniformly covered on the outside of the main body 2, thereby improving the service life of the main body 2.

[0032] See attached document Figure 2 In this embodiment, the front part 21, the connecting part 22 and the tail part 25 are connected concentrically with the same diameter.

[0033] In the above embodiment, the cavity 26 penetrates the main body 2 and is fixedly connected to the impact head 1. The inner diameter of the impact head 1 is smaller than that of the cavity 26. Therefore, the installation of the impact piston is more convenient through the through hole opened inside the cavity 26 and the impact head 1.

[0034] Further, the first outer ring 23 and the second outer ring 24 are provided with a plurality of, a plurality of first outer ring 23 is located between the front part 21 and the connecting part 22, a plurality of second outer ring 24 is located between the connecting part 22 and the tail part 25, under the action of the oil circuit of the cooperation of the first outer ring 23 and the second outer ring 24, the impact piston can reciprocate, and the included angle between the plurality of first outer ring 23 and the plurality of second outer ring 24 can be installed sealing ring, thereby improving the sealing performance of the impact piston and the cylinder.

[0035] Referring to the drawings Figure 3 and Figure 4 In the embodiment, the reinforcing mechanism 3 includes a reinforcing rib 31 and a reinforcing rod 32, the reinforcing rod 32 is fixedly connected inside the reinforcing rib 31, the reinforcing rib 31 is annular, and the reinforcing rod 32 is triangular in structure.

[0036] In the above embodiment, the reinforcing rib 31 and the reinforcing rod 32 are provided with a plurality of, and a plurality of reinforcing ribs 31 are arranged around the outside of the reinforcing rod 32, so that the reinforcing structure composed of the reinforcing rib 31 and the reinforcing rod 32 can be integrally formed during casting of the impact piston, thereby improving the structural strength of the main body 2.

[0037] The working principle of the utility model is as follows: when in use, the cavity 26 inside the main body 2 cooperates with the through hole inside the impact head 1, so that the impact piston is more convenient to install, and the sealing performance between the main body 2 and the cylinder is improved by installing sealing rings inside the plurality of first outer rings 23 and the second outer rings 24 arranged on the surface of the main body 2, and the impact piston is used, the main body 2 is provided with a wear-resistant layer 4 outside, the wear-resistant layer 4 made of metal aluminum powder can improve the wear resistance of the main body 2, and the reinforcing rib 31 and the reinforcing rod 32 integrally formed inside the main body 2 can improve the overall structural strength of the main body 2, thereby prolonging the service life.

[0038] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary technical personnel in the technical field, without departing from the principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection range of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the field without special description and limitation.

Claims

1. An impact piston, characterized in that Include: Impact head (1); One side of the impact head (1) is provided with a main body (2), the inside of the main body (2) is fixedly connected with a reinforcing mechanism (3), and the surface of the main body (2) is provided with a wear-resistant layer (4); Wherein, the main body (2) includes a front part (21) and a connecting part (22), the front part (21) is fixedly connected with the tail part (25) through the connecting part (22), the outer part of the connecting part (22) is fixedly connected with the first outer ring (23) and the second outer ring (24) respectively, and the inside of the front part (21) is provided with a cavity (26).

2. An impact piston as claimed in claim 1, characterized in that: The impact head (1) and the main body (2) are integrally cast, and the reinforcing mechanism (3) is integrally formed with the main body (2).

3. An impact piston as claimed in claim 1, characterized in that: The front part (21), the connecting part (22) and the tail part (25) are concentrically and diametrically connected.

4. An impact piston as claimed in claim 1, characterized in that: The cavity (26) penetrates through the main body (2) and is fixedly connected with the impact head (1), and the inner diameter of the impact head (1) is smaller than that of the cavity (26).

5. An impact piston as claimed in claim 1, characterized in that: The first outer ring (23) and the second outer ring (24) are provided with a plurality of, a plurality of the first outer ring (23) is located between the front part (21) and the connecting part (22), a plurality of the second outer ring (24) is located between the connecting part (22) and the tail part (25).

6. An impact piston as claimed in claim 1, characterized in that: The reinforcing mechanism (3) includes a reinforcing rib (31) and a reinforcing rod (32), the inside of the reinforcing rib (31) is fixedly connected with the reinforcing rod (32), the reinforcing rib (31) is annular, and the reinforcing rod (32) is triangular structure.

7. An impact piston as claimed in claim 6, characterized in that: The reinforcing rib (31) and the reinforcing rod (32) are provided with a plurality of, a plurality of the reinforcing rib (31) is arranged around the outside of the reinforcing rod (32).

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