Cooling circulation device of hydraulic breaking hammer

Abstract

The utility model relates to the technical field of cooling accessories, in particular to a hydraulic breaking hammer cooling circulation device which comprises a hydraulic cylinder body and a breaking drill rod arranged at the bottom of the hydraulic cylinder body, and a cooling liquid box is installed on the outer wall of the hydraulic cylinder body. Through the arrangement of the cooling liquid tank, the circulating coil pipe, the liquid inlet pipe, the liquid discharge pipe, the first metal corrugated pipe and the second metal corrugated pipe, when the hydraulic breaking hammer works, cooling liquid can enter the circulating coil pipe from the cooling liquid tank through the first metal corrugated pipe and the liquid inlet pipe to cool a breaking drill rod, so that the breaking drill rod is cooled, and the breaking efficiency of the hydraulic breaking hammer is improved. And then the cooling liquid returns to the cooling liquid tank through the liquid discharging pipe and the second metal corrugated pipe to form a complete cooling circulation, so that the temperature of the breaking drill rod in the working process is effectively reduced, the service life of the hydraulic breaking hammer is prolonged, and the working efficiency of the hydraulic breaking hammer is improved. Meanwhile, due to the telescopic design of the first metal corrugated pipe and the second metal corrugated pipe, the hydraulic breaking hammer has better flexibility and adaptability in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling accessories, in particular to a cooling circulation device for a hydraulic breaker hammer. Background Art

[0002] With the continuous advancement of modern engineering technology, hydraulic breakers, as core components in the construction machinery sector, have become increasingly important for the smooth progress of various projects. However, during prolonged, high-intensity crushing operations, hydraulic breakers generate significant heat, causing operating temperatures to rise dramatically. This not only affects the hydraulic breaker's efficiency but also damages its internal structure and materials, shortening its service life. Common cooling methods are often ineffective and fail to effectively reduce the high temperatures generated by the breaker rods during high-intensity operation. This not only increases wear on the breaker rods, shortening their service life, but also reduces the hydraulic breaker's efficiency due to overheating. Utility Model Content

[0003] The purpose of the utility model is to provide a cooling circulation device for a hydraulic breaker hammer, so as to solve the problem of high temperature generated by the existing hydraulic breaker hammer under high-intensity work as mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] The hydraulic breaker hammer cooling circulation device includes a hydraulic cylinder body and a breaker drill rod arranged at the bottom of the hydraulic cylinder body, and a coolant tank is installed on the outer wall of the hydraulic cylinder body;

[0006] A circulation coil is embedded in the crushing drill rod, and a drill rod head is coaxially connected to the top of the crushing drill rod. The diameter of the drill rod head is smaller than the top surface diameter of the crushing drill rod. An inlet pipe and a discharge pipe connected to the liquid inlet end and the liquid outlet end of the circulation coil are symmetrically arranged at both ends of the top surface of the crushing drill rod. The inlet pipe is connected to a first retractable metal bellows, and the discharge pipe is connected to a second retractable metal bellows. The first metal bellows and the second metal bellows are both connected to the coolant tank.

[0007] Preferably, a liquid inlet head and a liquid outlet head are installed on the outer wall of the hydraulic cylinder body.

[0008] Preferably, the liquid inlet head is connected to the first metal bellows in the hydraulic cylinder body, and the liquid inlet head is connected to the liquid outlet end of the coolant tank through a connecting pipe.

[0009] Preferably, the liquid outlet head is connected to the second metal bellows in the hydraulic cylinder body, and the liquid outlet head is connected to the liquid inlet end of the coolant tank through a connecting pipe.

[0010] Preferably, a hydraulic pump for conveying coolant is installed in the coolant tank, and the liquid outlet of the hydraulic pump is connected to the liquid inlet head.

[0011] Preferably, the circulation coil is a capillary hollow metal tube, and the diameter of the circulation coil is 0.25-1 mm.

[0012] Preferably, the circulating coil is arranged in a ring shape and embedded in the crushing drill rod.

[0013] Compared with the existing technology, the beneficial effects of the present invention are:

[0014] 1. This hydraulic breaker's cooling circulation device, comprised of a coolant tank, circulating coil, inlet pipe, drain pipe, first metal bellows, and second metal bellows, allows coolant to flow from the tank through the first metal bellows and inlet pipe into the circulating coil to cool the breaker rod during operation. The coolant then returns to the tank through the drain pipe and second metal bellows, forming a complete cooling cycle. This effectively reduces the temperature of the breaker rod during operation and increases the service life and operating efficiency of the hydraulic breaker. Furthermore, the retractable design of the first and second metal bellows provides the hydraulic breaker with greater flexibility and adaptability during use.

[0015] 2. In this hydraulic breaker's cooling circulation system, an inlet and outlet are mounted on the outer wall of the hydraulic cylinder. The inlet ensures smooth and efficient flow of coolant into the breaker rod, providing the necessary cooling for internal components. The inlet is also tightly connected to the outlet of the coolant tank via a connecting pipe, forming a complete coolant supply channel. The outlet directs the warm coolant back to the inlet of the coolant tank, completing the coolant circulation.

[0016] 3. In the cooling circulation device of the hydraulic breaker hammer, the circulation coil is arranged in a ring shape and embedded in the breaker rod, so that the coolant can fully contact and wrap the working area of the breaker rod, thereby effectively absorbing and taking away the heat generated by the work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they provide further detailed explanations, but do not constitute a limitation to the present invention.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the utility model;

[0020] Figure 3This is a schematic diagram of the cross-sectional structure of the crushing drill rod of the utility model;

[0021] 10. Hydraulic cylinder; 11. Liquid inlet head; 12. Liquid outlet head;

[0022] 20. Crushing drill rod; 21. Drill rod head; 22. Liquid inlet pipe; 23. First metal bellows; 24. Liquid discharge pipe; 25. Second metal bellows; 26. Circulating coil;

[0023] 30. Coolant tank; 31. Connecting pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention and the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "vertical", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] Hydraulic hammer cooling circulation device, such as Figure 1-Figure 3As shown, it includes a hydraulic cylinder body 10 and a crushing drill rod 20 arranged at the bottom of the hydraulic cylinder body 10, and a coolant tank 30 is installed on the outer wall of the hydraulic cylinder body 10; a circulating coil 26 is embedded in the crushing drill rod 20, and a drill rod head 21 is coaxially connected to the top of the crushing drill rod 20. The diameter of the drill rod head 21 is smaller than the top surface diameter of the crushing drill rod 20, and the top ends of the crushing drill rod 20 are symmetrically provided with a liquid inlet pipe 22 and a liquid outlet pipe 24 connected to the liquid inlet end and the liquid outlet end of the circulating coil 26. The liquid inlet pipe 22 is connected to a first retractable metal bellows 23, and the liquid outlet pipe 24 is connected to a second retractable metal bellows 25. The first metal bellows 23 The first and second metal bellows 25 are both connected to the coolant tank 30. Through the coolant tank 30, circulation coil 26, liquid inlet pipe 22, discharge pipe 24, first metal bellows 23, and second metal bellows 25, when the hydraulic breaker is operating, coolant can flow from the coolant tank 30 through the first metal bellows 23 and liquid inlet pipe 22 into the circulation coil 26 to cool the breaker rod 20, and then return to the coolant tank 30 through the discharge pipe 24 and second metal bellows 25, forming a complete cooling cycle. This effectively reduces the temperature of the breaker rod 20 during operation and improves the service life and operating efficiency of the hydraulic breaker. Furthermore, the retractable design of the first and second metal bellows 23, 25 provides the hydraulic breaker with greater flexibility and adaptability during use.

[0027] Furthermore, the outer wall of the hydraulic cylinder 10 is equipped with an inlet head 11 and an outlet head 12. The inlet head 11 ensures that the coolant can flow smoothly and efficiently into the crushing drill rod 20, providing the necessary cooling effect for the internal components. The inlet head 11 is also tightly connected to the outlet of the coolant tank 30 via a connecting pipe 31, forming a complete coolant supply channel. The outlet head 12 guides the warm coolant back to the inlet of the coolant tank 30, completing the coolant circulation.

[0028] Among them, the liquid inlet head 11 is connected to the first metal bellows 23 in the hydraulic cylinder body 10, the liquid inlet head 11 is connected to the liquid outlet end of the coolant tank 30 through the connecting pipe 31, the liquid outlet head 12 is connected to the second metal bellows 25 in the hydraulic cylinder body 10, and the liquid outlet head 12 is connected to the liquid inlet end of the coolant tank 30 through the connecting pipe 31.

[0029] It is worth noting that a hydraulic pump for conveying coolant is installed in the coolant tank 30. The outlet end of the hydraulic pump is connected to the liquid inlet head 11, which is responsible for driving the coolant to circulate in the system. Its outlet end is directly connected to the liquid inlet head 11 to ensure that the coolant can be continuously and stably supplied to the inside of the hydraulic cylinder.

[0030] Specifically, the circulation coil 26 adopts a capillary hollow metal tube, and the diameter of the circulation coil 26 is 0.25-1 mm, which has good thermal conductivity and can effectively resist high temperature and corrosion, ensuring the long-term stable operation of the cooling system.

[0031] In addition, the circulation coil 26 is arranged in a ring shape and embedded in the crushing drill rod 20, so that the coolant can fully contact and wrap the working area of the crushing drill rod, thereby effectively absorbing and taking away the heat generated by the work.

[0032] The working principle of the hydraulic breaker cooling circulation device:

[0033] When the hydraulic breaker starts working, the coolant is stored in the coolant tank 30. The coolant flows out of the coolant tank 30, passes through the retractable first metal bellows 23 connected to the coolant tank 30, and flows into the liquid inlet pipe 22. The coolant in the liquid inlet pipe 22 then enters the circulation coil 26. The circulation coil 26 is embedded in the breaker rod 20 to cool the breaker rod 20.

[0034] After cooling, the coolant flows out of the circulation coil 26 and enters the drain pipe 24. The coolant in the drain pipe 24 then passes through the retractable second metal bellows 25 and finally returns to the coolant tank 30, thus forming a complete cooling cycle.

[0035] During the entire process, due to the retractable design of the first metal bellows 23 and the second metal bellows 25, the hydraulic breaker can adapt to different working conditions during use, has better flexibility and adaptability, effectively reduces the temperature of the breaker rod 20 during operation, and improves the service life and working efficiency of the hydraulic breaker.

[0036] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling circulation device for a hydraulic breaker hammer, comprising a hydraulic cylinder (10) and a breaker rod (20) disposed at the bottom of the hydraulic cylinder (10), characterized in that: A coolant tank (30) is installed on the outer wall of the hydraulic cylinder body (10); A circulation coil (26) is embedded in the crushing drill rod (20), and a drill rod head (21) is coaxially connected to the top of the crushing drill rod (20). The diameter of the drill rod head (21) is smaller than the diameter of the top surface of the crushing drill rod (20). An inlet pipe (22) and a discharge pipe (24) connected to the liquid inlet end and the liquid outlet end of the circulation coil (26) are symmetrically arranged at both ends of the top surface of the crushing drill rod (20). The inlet pipe (22) is connected to a first metal bellows (23) that can be telescopic, and the discharge pipe (24) is connected to a second metal bellows (25) that can be telescopic. The first metal bellows (23) and the second metal bellows (25) are both connected to a coolant tank (30).

2. The cooling circulation device for a hydraulic breaker according to claim 1, characterized in that: A liquid inlet head (11) and a liquid outlet head (12) are mounted on the outer wall of the hydraulic cylinder body (10).

3. The cooling circulation device for a hydraulic breaker according to claim 2, characterized in that: The liquid inlet head (11) is connected to the first metal bellows (23) in the hydraulic cylinder body (10), and the liquid inlet head (11) is connected to the liquid outlet end of the cooling liquid tank (30) through a connecting pipe (31).

4. The cooling circulation device for a hydraulic breaker according to claim 2, characterized in that: The liquid outlet head (12) is connected to the second metal bellows (25) in the hydraulic cylinder body (10), and the liquid outlet head (12) is connected to the liquid inlet end of the coolant tank (30) through a connecting pipe (31).

5. The cooling circulation device for a hydraulic breaker according to claim 2, characterized in that: A hydraulic pump for conveying coolant is installed in the coolant tank (30), and a liquid outlet of the hydraulic pump is communicated with a liquid inlet head (11).

6. The cooling circulation device for a hydraulic breaker according to claim 1, characterized in that: The circulation coil (26) is a capillary hollow metal tube, and the diameter of the circulation coil (26) is 0.25-1 mm.

7. The cooling circulation device for a hydraulic breaker according to claim 1, characterized in that: The circulating coil (26) is arranged in a ring shape and is embedded in the crushing drill rod (20).

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