Quartering hammer cylinder body structure with enhanced wear resistance

By designing a wear-resistant protective shell and coating, as well as a heat dissipation system on the hydraulic breaker cylinder, the problem of easy damage to the cylinder body has been solved, and the wear resistance and heat dissipation have been improved, thus extending the service life of the equipment.

CN224161134UActive Publication Date: 2026-04-24ZHANGJIAGANG XINJIE CASTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANGJIAGANG XINJIE CASTING CO LTD
Filing Date
2025-05-22
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing hydraulic breaker cylinder body lacks wear resistance, making the equipment prone to damage.

Method used

A structure including a breaker assembly, a protective fixing shell assembly, a wear-resistant protective shell assembly, and a heat dissipation assembly is designed. The wear resistance of the cylinder is enhanced by the wear-resistant protective shell and wear-resistant coating, and a heat dissipation system is provided to prevent overheating.

Benefits of technology

It improves the wear resistance of the hydraulic breaker cylinder, extends the service life of the equipment, reduces failures caused by wear, and has an effective heat dissipation function.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a breaking hammer cylinder body structure with enhanced wear resistance, which relates to the related field of breaking hammers, and comprises a breaking hammer assembly, a protective fixed shell assembly, a wear-resistant protective shell assembly and a heat dissipation assembly, and the left end and the right end of the breaking hammer assembly are in threaded connection with the protective fixed shell assembly; the left end and the right end of the protective fixing shell assembly are in sliding connection with the wear-resistant protective shell assembly, the front end of the protective fixing shell assembly is in sliding connection with the heat dissipation assembly, the breaking hammer assembly further comprises a cylinder body, and the left end and the right end of the cylinder body are in threaded connection with the protective fixing shell assembly; the steel chisel is slidably connected to the lower end of the cylinder body; the first thread grooves are formed in the left end and the right end of the cylinder body; and by arranging the wear-resistant protective shell assembly capable of enhancing the wear resistance of the breaking hammer cylinder body, the device is not prone to being damaged by arranging the wear-resistant protective shell assembly capable of enhancing the wear resistance of the breaking hammer cylinder body.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic breakers, specifically a hydraulic breaker cylinder structure with enhanced wear resistance. Background Technology

[0002] A hydraulic breaker is a device used for breaking up rocks. Its power source is pressurized hydraulic oil supplied by the pump station of an excavator or loader. It can more effectively clear loose rocks and soil from rock crevices during the excavation of building foundations. The principle for selecting a hydraulic breaker is to choose the most suitable one based on the excavator model and the working environment. Hydraulic breakers have become an important working tool for hydraulic excavators. Some people also install hydraulic breakers on backhoe loaders (also known as double-ended loaders) or wheel loaders for breaking operations. A hydraulic breaker is also called a hydraulic breaker or hydraulic rock breaker.

[0003] For example, the novel lower cylinder body and lower nut mating structure of the hydraulic breaker described in (authorized public account CN222219679U) includes: a lower cylinder body assembly, a steel chisel disposed inside the lower cylinder body assembly, a flat pin connected to the outer side of the steel chisel, a groove formed on the lower cylinder body assembly, a lower nut disposed in the groove, an oblique angle formed on the lower nut, a through bolt connected to one side of the lower nut, an upper nut connected to one end of the through bolt, a washer disposed on one side of the upper nut, and a rounded corner disposed on the inner side of the groove.

[0004] The above-mentioned device increases the radius of the contact surface between the lower nut and the lower cylinder to prevent the lower cylinder from cracking during operation, thus increasing the service life of the breaker. However, the above-mentioned device does not have a device to enhance the wear resistance of the breaker cylinder, which makes it more prone to damage. Utility Model Content

[0005] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a hydraulic breaker cylinder structure with enhanced wear resistance.

[0006] This invention is implemented by constructing a hydraulic breaker cylinder structure with enhanced wear resistance. The device includes a hydraulic breaker assembly, a protective fixing shell assembly, a wear-resistant protective shell assembly, and a heat dissipation assembly. The left and right ends of the hydraulic breaker assembly are threadedly connected to the protective fixing shell assembly, and the left and right ends of the protective fixing shell assembly are slidably connected to the wear-resistant protective shell assembly. The front end of the protective fixing shell assembly is slidably connected to the heat dissipation assembly. The hydraulic breaker assembly further includes: a cylinder body, the left and right ends of which are threadedly connected to the protective fixing shell assembly; a steel rod, slidably connected to the lower end of the cylinder body; a first threaded groove, located at both ends of the cylinder body; a lower nut, located in the middle of the cylinder body; an upper nut, rotatably connected to the upper end of the cylinder body; and a connecting pipe, fixedly connected to the front side of the upper end of the cylinder body.

[0007] Preferably, the protective fixing shell assembly includes: a protective fixing shell slidably connected to the side of the cylinder body; a second threaded groove provided at both ends of the protective fixing shell; a short screw threadedly connected to the protective fixing shell and both ends of the cylinder body through the second threaded groove and the first threaded groove; a pin fixedly connected to the upper end of the protective fixing shell; a long screw threadedly connected to the protective fixing shell through the second threaded groove; and a nut threadedly connected at the middle to the left end of the long screw.

[0008] Preferably, the wear-resistant protective shell assembly includes: a wear-resistant protective shell slidably connected to the side of the protective fixing shell; a wear-resistant coating applied to the outer surface of the wear-resistant protective shell; a steel rod groove located at the lower end of the wear-resistant protective shell; a through groove located at the left and right ends of the wear-resistant protective shell and the wear-resistant coating; a sealing ring fixedly connected to the inner wall of the wear-resistant protective shell; and a vibration sensor fixedly connected to the rear end of the wear-resistant protective shell.

[0009] Preferably, the heat dissipation assembly includes: a heat dissipation protection box, which is slidably connected to a perforated groove on the heat dissipation protection box via long screws; a thermally conductive copper plate, which is fixedly connected to the rear end of the heat dissipation protection box; a hot water tank, which is fixedly connected to the front end of the thermally conductive copper plate and placed inside the heat dissipation protection box; a semiconductor heat sink, which is fixedly connected to the upper front end of the hot water tank; a fan, which is fixedly connected to the upper front end of the hot water tank and placed at the front end of the semiconductor heat sink; a dust filter, which is fixedly connected to the upper front end of the heat dissipation protection box; and a controller, which is fixedly connected to the middle front end of the heat dissipation protection box.

[0010] Preferably, the short screw is slidably connected to the left and right ends of the wear-resistant protective shell and wear-resistant coating through a through groove.

[0011] Preferably, the long screw is slidably connected to the left and right ends of the wear-resistant protective shell and the wear-resistant coating through a through groove.

[0012] Preferably, the sealing ring is slidably connected to the side of the protective fixing shell.

[0013] This utility model has the following advantages: This utility model provides an improved hydraulic breaker cylinder structure with enhanced wear resistance, which, compared with similar equipment, has the following improvements:

[0014] The present invention provides a hydraulic breaker cylinder structure with enhanced wear resistance. By incorporating a wear-resistant protective shell assembly that enhances the wear resistance of the hydraulic breaker cylinder, the device is less prone to damage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the hydraulic breaker assembly structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the protective fixing shell assembly structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the wear-resistant protective shell assembly structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the heat dissipation component structure of this utility model.

[0020] The components include: breaker hammer assembly-1, cylinder body-11, steel chisel-12, first threaded groove-13, lower nut-14, upper nut-15, connecting pipe-16, protective fixing shell assembly-2, protective fixing shell-21, second threaded groove-22, short screw-23, pin-24, long screw-25, nut-26, wear-resistant protective shell assembly-3, wear-resistant protective shell-31, wear-resistant coating-32, steel chisel groove-33, through groove-34, sealing ring-35, vibration sensor-36, heat dissipation assembly-4, heat dissipation protection box-41, thermally conductive copper plate-42, thermally conductive water tank-43, semiconductor heat sink-44, fan-45, dust filter-46, and controller-47. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 1-5The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0022] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Example 1:

[0025] Please see Figures 1-5 This utility model discloses a hydraulic breaker cylinder structure with enhanced wear resistance, comprising a hydraulic breaker assembly 1, a protective fixing shell assembly 2, a wear-resistant protective shell assembly 3, and a heat dissipation assembly 4. The left and right ends of the hydraulic breaker assembly 1 are threadedly connected to the protective fixing shell assembly 2, the left and right ends of the protective fixing shell assembly 2 are slidably connected to the wear-resistant protective shell assembly 3, and the front end of the protective fixing shell assembly 2 is slidably connected to the heat dissipation assembly 4. The hydraulic breaker assembly 1 also includes a cylinder body 11 with its left and right ends threadedly connected to the protective fixing shell assembly 2, a steel chisel 12 slidably connected to the lower end of the cylinder body 11, a first threaded groove 13 located at the left and right ends of the cylinder body 11, a lower nut 14 located in the middle of the cylinder body 11, an upper nut 15 rotatably connected to the upper end of the cylinder body 11, and a connecting pipe 16 fixedly connected to the front side of the upper end of the cylinder body 11 and fixedly connected to an external oil supply device.

[0026] The protective fixing shell assembly 2 has a protective fixing shell 21 that is slidably connected to the side of the cylinder body 11. The second threaded groove 22 is provided at both ends of the protective fixing shell 21. The protective fixing shell 21 can protect the internal cylinder body 11 and its upper components. The short screw 23 is threadedly connected to the protective fixing shell 21 and the left and right ends of the cylinder body 11 through the second threaded groove 22 and the first threaded groove 13. The pin 24 is fixedly connected to the upper end of the protective fixing shell 21. The long screw 25 is threadedly connected to the protective fixing shell 21 through the second threaded groove 22. The middle part of the nut 26 is threadedly connected to the left end of the long screw 25. The short screw 23 is slidably connected to the left and right ends of the wear-resistant protective shell 31 and the wear-resistant coating 32 through the through groove 34. The long screw 25 is slidably connected to the left and right ends of the wear-resistant protective shell 31 and the wear-resistant coating 32 through the through groove 34.

[0027] The wear-resistant protective shell assembly 3 has a wear-resistant protective shell 31 that is slidably connected to the side of the protective fixed shell 21. A wear-resistant coating 32 is applied to the outer surface of the wear-resistant protective shell 31. A steel rod groove 33 is located at the lower end of the wear-resistant protective shell 31. A through groove 34 is located at the left and right ends of the wear-resistant protective shell 31 and the wear-resistant coating 32. The wear-resistant coating 32 is made of metal ceramic raw material. A sealing ring 35 is fixedly connected to the inner wall of the wear-resistant protective shell 31. The sealing ring 35 can prevent rainwater from entering between the wear-resistant protective shell 31 and the protective fixed shell 21 and causing rust. A vibration sensor 36 is fixedly connected to the rear end of the wear-resistant protective shell 31. The sealing ring 35 is slidably connected to the side of the protective fixed shell 21.

[0028] This utility model provides an improved cylinder body structure for a hydraulic breaker with enhanced wear resistance, and its working principle is as follows:

[0029] First, when using this device, place it in the work area and then connect it to an external power source to provide the necessary electrical energy for its operation.

[0030] Secondly, when this device is needed, the external oil supply device can be started and the oil is supplied to the cylinder 11 through the connecting pipe 16 to drive the steel rod 12 to move back and forth for crushing. The wear-resistant protective shell 31 and the wear-resistant coating 32 can protect the internal device from damage after the wear-resistant protective shell 31 is impacted. When it is necessary to replace the cylinder 11, the wear-resistant protective shell 31 and its upper components, the short screw 23 and the long screw 25 can be rotated to separate them from the cylinder 11, the protective fixing shell 21, the wear-resistant protective shell 31 and the nut 26. Then, the wear-resistant protective shell 31 can be pulled to separate it from the protective fixing shell 21 and the lower end of the cylinder 11. At the same time, the cylinder 11 can be pulled to remove the cylinder 11 and its upper components from the protective fixing shell 21 for replacement.

[0031] Example 2:

[0032] Please see Figures 1-5Compared to Embodiment 1, this utility model provides a hydraulic breaker cylinder structure with enhanced wear resistance. This embodiment further includes: a heat dissipation assembly 4; a heat dissipation protection box 41 slidably connected to a hollowed-out groove on the heat dissipation protection box 41 via a long screw 25; a heat-conducting copper plate 42 fixedly connected to the rear end of the heat dissipation protection box 41; a hot water tank 43 fixedly connected to the front end of the heat-conducting copper plate 42 and placed inside the heat dissipation protection box 41; a semiconductor heat sink 44, after being activated, can cool the coolant in the hot water tank 43; a semiconductor heat sink 44 fixedly connected to the upper front end of the hot water tank 43; a fan 45 fixedly connected to the upper front end of the hot water tank 43 and placed in front of the semiconductor heat sink 44; a dust filter 46 fixedly connected to the upper front end of the heat dissipation protection box 41; and a controller 47 fixedly connected to the middle front end of the heat dissipation protection box 41.

[0033] In this embodiment:

[0034] When heat dissipation is required for this device, the semiconductor heat sink 44 can be activated by the controller 47. After the semiconductor heat sink 44 is activated, the cold end at the rear end can cool the coolant in the hot water tank 43. At the same time, the fan 45 can be activated to extract the heat emitted from the hot end at the front end of the semiconductor heat sink 44 and blow it out to the external environment through the dust filter 46. After the coolant in the hot water tank 43 is cooled, the heat in the cylinder 11 can be exchanged and dissipated through the heat-conducting copper plate 42. The dust filter 46 can prevent dust from entering the heat dissipation protection box 41.

[0035] This utility model provides an improved hydraulic breaker cylinder structure with enhanced wear resistance. By setting up a wear-resistant protective shell assembly 3 to enhance the wear resistance of the hydraulic breaker cylinder, the device is less prone to damage.

[0036] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydraulic breaker cylinder structure with enhanced wear resistance, comprising a hydraulic breaker assembly (1), a protective fixing shell assembly (2), a wear-resistant protective shell assembly (3), and a heat dissipation assembly (4), wherein the left and right ends of the hydraulic breaker assembly (1) are threadedly connected to the protective fixing shell assembly (2), the left and right ends of the protective fixing shell assembly (2) are slidably connected to the wear-resistant protective shell assembly (3), and the front end of the protective fixing shell assembly (2) is slidably connected to the heat dissipation assembly (4), characterized in that: The hydraulic breaker assembly (1) also includes: The cylinder body (11) is threaded to the left and right ends of the protective fixing shell assembly (2); A steel rod (12) is slidably connected to the lower end of the cylinder body (11); The first threaded groove (13) is provided at both ends of the cylinder body (11); Lower nut (14), the lower nut (14) is located in the middle of the cylinder body (11); Upper nut (15), which is rotatably connected to the upper end of cylinder body (11); Connecting pipe (16), which is fixedly connected to the front side of the upper end of cylinder (11).

2. The hydraulic breaker cylinder structure with enhanced wear resistance according to claim 1, characterized in that: The protective fixing shell assembly (2) includes: A protective fixing shell (21) is slidably connected to the side of the cylinder body (11); The second threaded groove (22) is provided at both ends of the protective fixing shell (21); The short screw (23) is threaded to the left and right ends of the protective fixing shell (21) and the cylinder (11) through the second thread groove (22) and the first thread groove (13); Pin (24), which is fixedly connected to the upper end of the protective fixing shell (21); A long screw (25) is threadedly connected to the protective fixing shell (21) through a second threaded groove (22); Nut (26), the middle part of which is threaded to the left end of long screw (25).

3. The hydraulic breaker cylinder structure with enhanced wear resistance according to claim 2, characterized in that: The wear-resistant protective shell assembly (3) includes: A wear-resistant protective shell (31) is slidably connected to the side of the protective fixed shell (21); A wear-resistant coating (32) is applied to the outer surface of the wear-resistant protective shell (31); A steel rod groove (33) is provided at the lower end of the wear-resistant protective shell (31); Through groove (34), the through groove (34) is provided at the left and right ends of the wear-resistant protective shell (31) and the wear-resistant coating (32); A sealing ring (35) is fixedly connected to the inner wall of the wear-resistant protective shell (31); Vibration sensor (36) is fixedly connected to the rear end of wear-resistant protective shell (31).

4. The hydraulic breaker cylinder structure with enhanced wear resistance according to claim 3, characterized in that: The heat dissipation component (4) includes: Heat dissipation protection box (41), wherein the heat dissipation protection box (41) is slidably connected to the hollow groove on the heat dissipation protection box (41) by a long screw (25); A heat-conducting copper plate (42) is fixedly connected to the rear end of the heat dissipation protection box (41); A hot water tank (43) is fixedly connected to the front end of a heat-conducting copper plate (42) and placed inside a heat dissipation protection box (41); A semiconductor heat sink (44) is fixedly connected to the upper front end of the hot water tank (43); Fan (45), the fan (45) is fixedly connected to the upper front side of the hot water tank (43) and placed at the front end of the semiconductor heat sink (44); Dust filter (46), the dust filter (46) is fixedly connected to the front side of the upper end of the heat dissipation protection box (41); The controller (47) is fixedly connected to the front side of the middle part of the heat dissipation and protection box (41).

5. The hydraulic breaker cylinder structure with enhanced wear resistance according to claim 2, characterized in that: The short screw (23) is slidably connected to the left and right ends of the wear-resistant protective shell (31) and the wear-resistant coating (32) through the through groove (34).

6. The hydraulic breaker cylinder structure with enhanced wear resistance according to claim 2, characterized in that: The long screw (25) is slidably connected to the left and right ends of the wear-resistant protective shell (31) and the wear-resistant coating (32) through the through groove (34).

7. The hydraulic breaker cylinder structure with enhanced wear resistance according to claim 3, characterized in that: The sealing ring (35) is slidably connected to the side of the protective fixing shell (21).

Citation Information

Patent Citations

  • Novel lower cylinder body and lower nut matching structure of breaking hammer

    CN222219679U