Anti-splashing protection device for front shell of breaking hammer

By designing an anti-splash protection device on the front shell of the hydraulic breaker, and utilizing a temperature sensor and a water spray cooling component, the problem of excessively high chisel temperature was solved, achieving effective cooling of the chisel and extending the service life of the hydraulic breaker.

CN224186836UActive Publication Date: 2026-05-01ZHANGJIAGANG 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
2025-06-03
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing hydraulic breakers lack effective cooling devices, resulting in excessively high chisel temperatures, decreased material hardness, and the propagation of microcracks, which in turn accelerates wear or breakage.

Method used

A splash protection device for the front shell of a hydraulic breaker was designed, comprising a shell assembly, a splash protection assembly, a control assembly, and a cooling assembly. The device detects the temperature of the drill rod using a temperature sensor and uses a water pump and a spray nozzle ring to spray water onto the drill rod to cool it down and prevent it from overheating.

Benefits of technology

This effectively prevents the material hardness of the chisel from decreasing and microcracks from expanding due to excessive temperature, thus extending the service life of the hydraulic breaker.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-splashing protection device of a breaking hammer front shell, which relates to the related field of engineering machinery and comprises a shell component, an anti-splashing component, a control component and a cooling component, the outer wall of the shell component is in sliding connection with the anti-splashing component, and the inner wall of the shell component is fixedly connected with the control component. The lower end of the anti-splashing assembly is fixedly connected with the cooling assembly, the shell assembly further comprises a shell, and the outer wall of the shell is slidably connected with the anti-splashing assembly; the thread grooves are formed in the left end and the right end of the shell; the pin shaft is fixedly connected to the upper end of the shell; the short screws are in threaded connection with the rear sides of the left end and the right end of the shell through the threaded grooves; and by arranging the cooling assembly capable of cooling the drill rod of the breaking hammer, the device can spray water to cool the drill rod during breaking work, so that the situation that the material hardness is reduced, microcosmic cracks are expanded, and abrasion or breakage is accelerated due to the fact that the temperature is too high is avoided.
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Description

A splash protection device for the front housing of a hydraulic breaker Technical Field

[0001] This utility model relates to the field of engineering machinery, specifically a splash protection device for the front shell of a hydraulic breaker. Background Technology

[0002] A hydraulic breaker is a device used for breaking up rocks. Its power source is pressurized 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, a hydraulic breaker as described in (authorization announcement number CN218027927U) includes a housing, a core, and a connecting assembly. The housing includes a first side plate and a second side plate disposed opposite to each other. The core is installed between the first side plate and the second side plate. The first side plate, the core, and the second side plate are fixed in sequence. One end of the connecting assembly forms a stepped structure for restricting the movement of the connecting assembly along a first direction, and the other end includes a locking member for restricting the rotation of the connecting assembly around the first direction and the movement along the first direction.

[0004] The aforementioned device enhances the stability of the connection between the core and the housing by setting a stepped structure at one end of the connecting assembly that connects the first and second side plates, and extends the service life of the breaker. However, the aforementioned device does not have a device to cool the breaker's chisel rod, which causes the material hardness to decrease and micro-cracks to expand due to excessively high chisel rod temperature during the breaker's operation, thus accelerating wear or breakage. Summary of the Invention

[0005] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a splash protection device for the front shell of a hydraulic breaker.

[0006] This invention is implemented as follows: a splash protection device for the front shell of a hydraulic breaker is constructed. The device includes a shell assembly, a splash protection assembly, a control assembly, and a cooling assembly. The outer wall of the shell assembly is slidably connected to the splash protection assembly, and the inner wall of the shell assembly is fixedly connected to the control assembly. The lower end of the splash protection assembly is fixedly connected to the cooling assembly. The shell assembly further includes: a shell, the outer wall of which is slidably connected to the splash protection assembly; threaded grooves located at both ends of the shell; a pin fixedly connected to the upper end of the shell; a short screw, which is threadedly connected to the rear sides of both ends of the shell via the threaded groove; a long screw, whose threaded groove is threadedly connected to the front sides of both ends of the shell; and a nut, the middle of which is threadedly connected to the left end of the long screw.

[0007] Preferably, the anti-splash assembly includes: an anti-splash connecting shell, the inner wall of which is slidably connected to the outer wall of the shell; a protective coating applied to the outer wall of the anti-splash connecting shell; a waterproof rubber ring fixedly connected to the inner wall of the anti-splash connecting shell and slidably connected to the outer wall of the shell; a buffer pad fixedly connected to the inner wall of the anti-splash connecting shell and slidably connected to the outer wall of the shell; a through groove located at both ends of the anti-splash connecting shell; a temperature sensor fixedly connected to the lower left side of the anti-splash connecting shell; and a high-strength protective light-transmitting plate fixedly connected to the lower end of the temperature sensor.

[0008] Preferably, the control assembly includes: a control box, which is fixedly connected to the front side of the interior of the splash-proof connecting shell; a water tank, which is fixedly connected to the middle of the inner wall of the control box; a liquid level sensor, which is fixedly connected to the upper end of the water tank; a controller, which is fixedly connected to the upper end of the inner wall of the control box; a water pump, which is fixedly connected to the upper end of the water tank; a water pumping pipe, which is fixedly connected to the front end of the water pump; and a water delivery pump, which is fixedly connected to the lower end of the inner wall of the control box.

[0009] Preferably, the cooling assembly includes: a drill rod protection block, which is fixedly connected to the lower end of the anti-splash connecting shell; a drill rod movable groove, which is located in the middle of the drill rod protection block; a pipe groove, which is located at the front end of the drill rod protection block and on the lower side of the front end of the anti-splash connecting shell; a circular telescopic protective net, the outer ring of which is fixedly connected to the drill rod movable groove; a nozzle ring, which is fixedly connected to the drill rod movable groove and placed at the lower end of the circular telescopic protective net; and a water supply pipe, which is fixedly connected to the front end of the nozzle ring.

[0010] Preferably, the splash-proof connecting shell is slidably connected to the short screw and the long screw via a through groove.

[0011] Preferably, the lower end of the pumping pipe is fixedly connected to the water tank.

[0012] Preferably, the water supply pipe passes through a pipe groove into the anti-splash connection shell and is fixedly connected to the water pump and water tank.

[0013] This utility model has the following advantages: This utility model provides an improved anti-splash protection device for the front shell of a hydraulic breaker, which, compared with similar equipment, has the following improvements:

[0014] The present invention discloses a splash protection device for the front shell of a hydraulic breaker. By setting a cooling component that can cool the breaker's chisel rod, the device can spray water to cool the chisel rod during the crushing operation, preventing the temperature from being too high, which would lead to a decrease in material hardness, the expansion of micro-cracks, and accelerated wear or breakage. Attached Figure Description

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

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

[0017] Figure 3 is a schematic diagram of the anti-splash component structure of this utility model;

[0018] Figure 4 is a schematic diagram of the control component structure of this utility model;

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

[0020] The components include: housing assembly-1, housing-11, threaded groove-12, pin-13, short screw-14, long screw-15, nut-16, anti-splash assembly-2, anti-splash connecting shell-21, protective coating-22, waterproof rubber ring-23, buffer pad-24, through groove-25, temperature sensor-26, high-strength protective light-transmitting plate-27, control assembly-3, control box-31, water tank-32, liquid level sensor-33, controller-34, water pump-35, water pipe-36, water delivery pump-37, cooling assembly-4, drill rod protection block-41, drill rod movable groove-42, pipe groove-43, circular telescopic protective net-44, nozzle ring-45, water delivery pipe-46. Detailed Implementation

[0021] The principles and features of this utility model are described below with reference to Figures 1-5. 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 refer to Figures 1 to 5. The present invention discloses a splash protection device for the front shell of a hydraulic breaker, comprising a shell assembly 1, a splash protection assembly 2, a control assembly 3, and a cooling assembly 4. The outer wall of the shell assembly 1 is slidably connected to the splash protection assembly 2, and the inner wall of the shell assembly 1 is fixedly connected to the control assembly 3. The lower end of the splash protection assembly 2 is fixedly connected to the cooling assembly 4. The shell assembly 1 also includes a shell 11 outer wall slidably connected to the splash protection assembly 2, threaded grooves 12 located at the left and right ends of the shell 11, a pin 13 fixedly connected to the upper end of the shell 11, short screws 14 threadedly connected to the rear sides of the left and right ends of the shell 11 through the threaded grooves 12, and the external hydraulic breaker cylinder can be fixed to the inside of the shell 11 through the setting of the short screws 14. Long screws 15 threadedly connected to the front sides of the left and right ends of the shell 11 through the threaded grooves 12, and the middle part of the nut 16 threadedly connected to the left end of the long screw 15.

[0026] The splash-proof assembly 2 has an inner wall of the splash-proof connecting shell 21 that is slidably connected to the outer wall of the shell 11. A protective coating 22 is applied to the outer wall of the splash-proof connecting shell 21. The protective coating 22 is made of metal-ceramic raw material. A waterproof rubber ring 23 is fixedly connected to the inner wall of the splash-proof connecting shell 21 and slidably connected to the outer wall of the shell 11. A buffer pad 24 is fixedly connected to the inner wall of the splash-proof connecting shell 21 and slidably connected to the outer wall of the shell 11. A through groove 25 is provided at both ends of the splash-proof connecting shell 21. A temperature sensor 26 is fixedly connected to the lower left side of the splash-proof connecting shell 21. The detection head of the temperature sensor 26 can be protected by a high-strength protective light-transmitting plate 27. The high-strength protective light-transmitting plate 27 is fixedly connected to the lower end of the temperature sensor 26. The splash-proof connecting shell 21 is slidably connected to the short screw 14 and the long screw 15 through the through groove 25.

[0027] This utility model provides an improved anti-splash protection device for the front shell of a hydraulic breaker, the working principle of which is as follows;

[0028] 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.

[0029] Secondly, when this device is needed, the anti-splash connecting shell 21 can be installed on the outer wall of the housing 11 during construction. When the anti-splash connecting shell 21 is impacted by flying stones, the anti-splash connecting shell 21 will be forced to shrink the buffer pad 24 to cushion the impact and prevent damage to the internal components of the anti-splash connecting shell 21 due to a large impact. In addition, the protective coating 22 can significantly reduce scratches and dents on the surface of the anti-splash connecting shell 21 and extend the life of the housing. When the anti-splash connecting shell 21 needs to be replaced, the short screw 14 and the long screw 15 can be rotated to separate the short screw 14 and the long screw 15 from the housing 11 and the anti-splash connecting shell 21. Then, the anti-splash connecting shell 21 can be pushed downward to separate the anti-splash connecting shell 21 from the outer wall of the housing 11 to replace the anti-splash connecting shell 21.

[0030] Example 2:

[0031] Please refer to Figures 1 to 5. This utility model provides a splash protection device for the front shell of a hydraulic breaker. Compared with Embodiment 1, this embodiment further includes: a control component 3, a control box 31 fixedly connected to the front side inside the splash protection connecting shell 21, a water tank 32 fixedly connected to the middle of the inner wall of the control box 31, a liquid level sensor 33 fixedly connected to the upper end of the water tank 32, a controller 34 fixedly connected to the upper end of the inner wall of the control box 31, a water pump 35 fixedly connected to the upper end of the water tank 32, and after the water pump 35 is started, it can pump water from the external water tank to the water tank 32 through the water pump pipe 36. The water pump pipe 36 is fixedly connected to the front end of the water pump 35, and the upper end of the water pump pipe 36 is fixedly connected to the external water tank. A water pump 37 is fixedly connected to the lower end of the inner wall of the control box 31, and the lower end of the water pump pipe 36 is fixedly connected to the water tank 32.

[0032] The cooling component 4 includes a drill rod protection block 41 fixedly connected to the lower end of the anti-splash connecting shell 21, a drill rod movable groove 42 located in the middle of the drill rod protection block 41, which, after the water pump 37 is started, can pump water from the water tank 32 through the water pipe 46 to the nozzle ring 45 to spray out and cool the drill rod, preventing the drill rod from overheating. The pipe groove 43 is located at the front end of the drill rod protection block 41 and the lower side of the front end of the anti-splash connecting shell 21. The outer ring of the circular telescopic protective net 44 is fixedly connected to the drill rod movable groove 42, and the inner ring of the circular telescopic protective net 44 is pasted to the external drill rod. The nozzle ring 45 is fixedly connected to the drill rod movable groove 42 and placed at the lower end of the circular telescopic protective net 44. The water pipe 46 is fixedly connected to the front end of the nozzle ring 45 and passes through the pipe groove 43 into the anti-splash connecting shell 21, where it is fixedly connected to the water pump 37 and the water tank 32.

[0033] In this embodiment:

[0034] When cooling of the drill rod is required, the level sensor 33 can be activated by the controller 34. After activation, the level sensor 33 can detect the liquid level in the water tank 32 and send the detected liquid level data to the controller 34 for processing via a data cable. If the controller 34 detects that the liquid level in the water tank 32 is low, it can activate the water pump 35. After activation, the water pump 35 can pump water from the external water tank to the water tank 32 through the water pipe 36 to the specified liquid level. At the same time, the temperature sensor 26 can be activated to detect the temperature of the drill rod and send the detected temperature data to the controller 34 via a data cable. The controller 34 processes the data. If the controller 34 detects that the temperature on the drill rod is high, it can start the water pump 37. After the water pump 37 starts, water in the water tank 32 can be pumped out through the water pipe 46 and delivered to the nozzle ring 45 to spray evenly around the drill rod (avoiding water flow directly hitting the tip and causing thermal shock). Spraying water can simultaneously reduce the dust (such as PM10 and PM2.5) generated during the crushing process, which meets environmental protection requirements and protects the health of operators. If the drill rod is already at an extremely high temperature, the controller 34 can control the water flow intensity or use intermittent spraying to avoid sudden water cooling that may cause local thermal stress cracks.

[0035] This utility model provides an improved anti-splash protection device for the front shell of a hydraulic breaker. By setting a cooling component 4 to cool the breaker's chisel rod, the device can spray water to cool the chisel rod during crushing operations, preventing excessive temperature from causing a decrease in material hardness, the propagation of micro-cracks, and accelerated wear or breakage.

[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 splash protection device for the front shell of a hydraulic breaker, comprising a shell assembly (1), a splash protection assembly (2), a control assembly (3), and a cooling assembly (4), wherein the outer wall of the shell assembly (1) is slidably connected to the splash protection assembly (2), the inner wall of the shell assembly (1) is fixedly connected to the control assembly (3), and the lower end of the splash protection assembly (2) is fixedly connected to the cooling assembly (4), characterized in that: The housing assembly (1) further includes: a housing (11), the outer wall of which is slidably connected to the splash-proof assembly (2); a threaded groove (12), which is provided at the left and right ends of the housing (11); a pin (13), which is fixedly connected to the upper end of the housing (11); a short screw (14), which is threadedly connected to the rear side of the left and right ends of the housing (11) through the threaded groove (12); a long screw (15), which is threadedly connected to the front side of the left and right ends of the housing (11) through the threaded groove (12); and a nut (16), the middle part of which is threadedly connected to the left end of the long screw (15).

2. The anti-splash protection device for the front housing of a hydraulic breaker according to claim 1, characterized in that: The anti-splash assembly (2) includes: an anti-splash connecting shell (21), the inner wall of which is slidably connected to the outer wall of the shell (11); a protective coating (22), which is applied to the outer wall of the anti-splash connecting shell (21); a waterproof rubber ring (23), which is fixedly connected to the inner wall of the anti-splash connecting shell (21) and slidably connected to the outer wall of the shell (11); a buffer pad (24), which is fixedly connected to the inner wall of the anti-splash connecting shell (21) and slidably connected to the outer wall of the shell (11); a through groove (25), which is provided at both ends of the anti-splash connecting shell (21); a temperature sensor (26), which is fixedly connected to the lower left side of the anti-splash connecting shell (21); and a high-strength protective light-transmitting plate (27), which is fixedly connected to the lower end of the temperature sensor (26).

3. The splash protection device for the front housing of a hydraulic breaker according to claim 2, characterized in that: The control component (3) includes: a control box (31), which is fixedly connected to the front side inside the splash-proof connecting shell (21); a water tank (32), which is fixedly connected to the middle of the inner wall of the control box (31); a liquid level sensor (33), which is fixedly connected to the upper end of the water tank (32); a controller (34), which is fixedly connected to the upper end of the inner wall of the control box (31); a water pump (35), which is fixedly connected to the upper end of the water tank (32); a water pump pipe (36), which is fixedly connected to the front end of the water pump (35); and a water delivery pump (37), which is fixedly connected to the lower end of the inner wall of the control box (31).

4. The splash protection device for the front housing of a hydraulic breaker according to claim 3, characterized in that: The cooling component (4) includes: a drill rod protection block (41), which is fixedly connected to the lower end of the anti-splash connecting shell (21); a drill rod movable groove (42), which is located in the middle of the drill rod protection block (41); a pipe groove (43), which is located at the front end of the drill rod protection block (41) and the lower side of the front end of the anti-splash connecting shell (21); a circular telescopic protective net (44), the outer ring of which is fixedly connected to the drill rod movable groove (42); a nozzle ring (45), which is fixedly connected to the drill rod movable groove (42) and placed at the lower end of the circular telescopic protective net (44); and a water supply pipe (46), which is fixedly connected to the front end of the nozzle ring (45).

5. The splash protection device for the front housing of a hydraulic breaker according to claim 2, characterized in that: The splash-proof connecting shell (21) is slidably connected to the short screw (14) and the long screw (15) through the through groove (25).

6. The splash protection device for the front housing of a hydraulic breaker according to claim 3, characterized in that: The lower end of the pumping pipe (36) is fixedly connected to the water tank (32).

7. The splash protection device for the front housing of a hydraulic breaker according to claim 4, characterized in that: The water supply pipe (46) passes through the pipe groove (43) into the anti-splash connection shell (21) and is fixedly connected to the water pump (37) and the water tank (32).