A body positioning structure for a crusher

Abstract

This utility model relates to the field of crushers and discloses a body positioning structure for a crusher, including a lower cylinder. The top of the lower cylinder has an installation groove, and a positioning protrusion is fixedly connected inside the installation groove. Two sliding grooves are formed inside the lower cylinder. A middle cylinder is slidably connected inside the lower cylinder, and a positioning pin groove is formed on the top of the middle cylinder. An outer bushing is fixedly connected inside the lower cylinder. An inner rod is slidably connected inside the middle cylinder, and the inner rod is slidably connected to the outside of the outer bushing. The left end of the middle cylinder and the right side of the outer bushing abut against each other. In this utility model, the positioning pin groove on the middle cylinder is slowly inserted to mate with the elongated protrusion protruding from the inner circle of the lower cylinder, accurately inserting it into the lower cylinder body. This reduces the difficulty of matching the positioning pin hole on the middle cylinder body with the positioning pin already installed on the lower cylinder assembly, making the body more streamlined, reducing the failure rate, increasing durability, lowering operating costs, and improving safety performance.

Description

Technical Field

[0001] This utility model relates to the field of crushers, and in particular to a body positioning structure for crushers. Background Technology

[0002] A hydraulic breaker, also known as a "breaker" or "crusher," is a type of engineering machinery that utilizes the principles of a hydraulic system and is driven by hydraulic pressure. Its main function is to efficiently break hard materials such as rocks, stones, or concrete using impact force and frequent striking motions. Hydraulic breakers are powered by equipment such as excavators, loaders, and pump stations. This power is transmitted through the hydraulic system to the breaker's striking mechanism, generating a powerful impact force. Its working principle gives it high work efficiency. Compared to traditional breaking tools, hydraulic breakers can significantly improve construction efficiency, shorten construction time, and maintain high operational stability in complex working environments.

[0003] Hydraulic breakers are widely used in various engineering projects such as mining, railways, highways, tunnel construction, and building demolition. In mining, breakers are used to break hard rocks, facilitating subsequent mineral extraction. In infrastructure construction such as railways and highways, hydraulic breakers are often used to break rocks and concrete during bridge construction or tunnel excavation, ensuring project progress. In the construction field, hydraulic breakers are often used for the demolition of old buildings, precisely controlling the breaking force to avoid unnecessary damage. With its high efficiency, flexibility, and precision, hydraulic breakers have become an indispensable tool in modern engineering construction.

[0004] However, when assembling the middle cylinder assembly downwards in a traditional hydraulic breaker, the locating pin hole on the middle cylinder assembly needs to mate with the locating pin already installed on the lower cylinder assembly. This action is very difficult, affecting the assembly progress. Furthermore, the locating pin is easily removed along with the middle cylinder during disassembly, and it is easy for the locating pin to fall off, which is not conducive to reuse and causes unnecessary material waste. Therefore, a body positioning structure for the breaker is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a body positioning structure for a crusher, which aims to improve the problem that when the middle cylinder assembly in a traditional hydraulic breaker is assembled downwards, the positioning pin hole on the middle cylinder needs to cooperate with the positioning pin already installed on the lower cylinder assembly. This cooperation is very difficult, affecting the assembly progress. Moreover, when disassembling the machine, the positioning pin is easily removed along with the middle cylinder, and the positioning pin is easy to fall off, which is not conducive to reuse and causes unnecessary material waste.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a body positioning structure for a crusher, including a lower cylinder, an installation groove is provided on the top of the lower cylinder, a positioning protrusion is fixedly connected inside the installation groove, two sliding grooves are provided inside the lower cylinder, a middle cylinder is slidably connected inside the lower cylinder, and a positioning pin groove is provided on the top of the middle cylinder.

[0007] As a further description of the above technical solution:

[0008] The lower cylinder is fixedly connected to an outer bushing.

[0009] As a further description of the above technical solution:

[0010] The inner cylinder is slidably connected to an inner rod.

[0011] As a further description of the above technical solution:

[0012] The inner rod is externally slidably connected to the inside of the outer bushing.

[0013] As a further description of the above technical solution:

[0014] The left end of the middle cylinder and the right side of the outer bushing abut each other.

[0015] As a further description of the above technical solution:

[0016] A flat pin is slidably connected inside the groove.

[0017] As a further description of the above technical solution:

[0018] The positioning protrusion is externally slidably connected inside the positioning pin groove.

[0019] As a further description of the above technical solution:

[0020] An inner bushing is fixedly connected to the left side of the lower cylinder.

[0021] This utility model has the following beneficial effects:

[0022] In this invention, the positioning pin groove on the middle cylinder is slowly inserted to match the elongated protrusion protruding from the inner circle of the lower cylinder, and is accurately installed into the lower cylinder. This reduces the difficulty of matching the positioning pin hole on the middle cylinder with the positioning pin already installed on the lower cylinder assembly, making the main body more streamlined, reducing the failure rate, providing ultra-high durability, reducing usage costs, and improving safety performance. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a body positioning structure for a crusher proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the middle cylinder of a body positioning structure for a crusher proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the positioning protrusion of the body positioning structure for a crusher proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the lower cylinder of a body positioning structure for a crusher proposed in this utility model.

[0027] Legend:

[0028] 1. Lower cylinder; 2. Mounting groove; 3. Middle cylinder; 4. Locating pin groove; 5. Locating protrusion; 6. Inner bushing; 7. Flat pin; 8. Outer bushing; 9. Inner rod; 10. Slide groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1 - Figure 4 This utility model provides an embodiment of a body positioning structure for a crusher, including a lower cylinder 1. The top of the lower cylinder 1 has a mounting groove 2, and a positioning protrusion 5 is fixedly connected inside the mounting groove 2. Two sliding grooves 10 are provided inside the lower cylinder 1, and a middle cylinder 3 is slidably connected inside the lower cylinder 1. A positioning pin groove 4 is provided at the top of the middle cylinder 3. The lower cylinder 1 is used to connect to the middle cylinder 3. The mounting groove 2 facilitates the installation of the positioning protrusion 5, which positions the middle cylinder 3. The sliding grooves 10 facilitate the installation of a flat pin 7. The middle cylinder 3 is used to connect to the upper cylinder. The positioning pin groove 4 cooperates with the positioning protrusion 5 to position the lower cylinder 1. For positioning, an outer bushing 8 is fixedly connected inside the lower cylinder 1, which is used to fix the inner rod 9. The inner rod 9 is slidably connected inside the middle cylinder 3, which is used to provide power to the fiber rod. The inner rod 9 is slidably connected to the outside of the outer bushing 8 to fix the inner rod 9. The left end of the middle cylinder 3 and the right side of the outer bushing 8 abut against each other to keep the middle cylinder 3 stable. A flat pin 7 is slidably connected inside the slide groove 10, which is used to fix the fiber rod. The positioning protrusion 5 is slidably connected to the outside of the positioning pin groove 4 to restrict the movement direction of the middle cylinder 3 during installation. An inner bushing 6 is fixedly connected to the left side of the lower cylinder 1 to keep the fiber rod stable.

[0031] Working principle: When installing the middle cylinder 3 and the lower cylinder 1, align the positioning pin groove 4 on the middle cylinder 3 (which has a circular design) with the positioning protrusion 5 inside the lower cylinder 1 and slide it in. The positioning protrusion 5 positions the positioning pin groove 4, allowing the lower cylinder 1 to be accurately installed inside the middle cylinder 3. Install the inner rod 9 inside the outer bushing 8. Finally, slide the fiber rod through the inner bushing 6 into the flat pin 7, and then use the flat pin 7 to slide into the slide groove 10 to fix the fiber rod inside the lower cylinder 1, thus completing the installation and fixing. The assembly is simple, the failure rate is low, the fit is convenient, the durability is extremely high, it is recyclable, improves assembly efficiency, increases economic benefits, and is more labor-saving, environmentally friendly, resource-saving, and extends product lifespan.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A body positioning structure for a crusher, comprising a lower cylinder (1), characterized in that: The lower cylinder (1) has an installation groove (2) on its top. A positioning protrusion (5) is fixedly connected inside the installation groove (2). Two sliding grooves (10) are opened inside the lower cylinder (1). A middle cylinder (3) is slidably connected inside the lower cylinder (1). A positioning pin groove (4) is opened on the top of the middle cylinder (3).

2. The body positioning structure for a crusher according to claim 1, characterized in that: The lower cylinder (1) is internally fixedly connected to an outer bushing (8).

3. The body positioning structure for a crusher according to claim 2, characterized in that: The inner cylinder (3) is slidably connected to an inner rod (9).

4. The body positioning structure for a crusher according to claim 3, characterized in that: The inner rod (9) is externally slidably connected to the inside of the outer bushing (8).

5. A body positioning structure for a crusher according to claim 2, characterized in that: The left end of the middle cylinder (3) and the right side of the outer bushing (8) abut against each other.

6. The body positioning structure for a crusher according to claim 1, characterized in that: A flat pin (7) is slidably connected inside the groove (10).

7. The body positioning structure for a crusher according to claim 1, characterized in that: The positioning protrusion (5) is externally slidably connected to the inside of the positioning pin groove (4).

8. The body positioning structure for a crusher according to claim 1, characterized in that: The lower cylinder (1) is fixedly connected to an inner bushing (6) on the left side.

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