CN220953611U

CN220953611U - Buffering and heat dissipation structure of breaking hammer movement

Info

Publication number: CN220953611U
Application number: CN202322243531.0U
Authority: CN
Inventors: 赵立羽
Original assignee: Jiangsu Jiurun Machinery Industry Technology Co ltd
Current assignee: Jiangsu Jiurun Machinery Industry Technology Co ltd
Priority date: 2023-08-21
Filing date: 2023-08-21
Publication date: 2024-05-14
Anticipated expiration: 2033-08-21

Abstract

The utility model belongs to the technical field of engineering machinery, and provides a buffering and heat dissipation structure of a breaking hammer core, which comprises the following components: the front cylinder body and well cylinder body have seted up the hydro-cylinder in the well cylinder body, and the inside sliding connection of hydro-cylinder has the piston, and piston bottom fixedly connected with connecting block, the inside sliding connection of front cylinder body has the drill rod, and first buffer tank has been seted up at the drill rod top, and the connecting block bottom extends to inside the first buffer tank, is provided with first buffering subassembly in the first buffer tank. The buffering heat dissipation structure of the breaking hammer core can absorb striking energy transmitted back to the hammer core and emit heat generated by the striking energy, so that the service life of the breaking hammer is prolonged, and the use cost of the breaking hammer is reduced.

Description

Buffering and heat dissipation structure of breaking hammer movement

Technical Field

The utility model belongs to the technical field of engineering machinery, and particularly relates to a buffering and heat-dissipating structure of a breaking hammer movement.

Background

Breaking hammers are divided into three major parts: the main parts of the upper cylinder body, the middle cylinder body and the lower cylinder body are the middle cylinder body, and the movement is arranged in the middle cylinder body and determines the quality of the breaking hammer. The breaking hammer uses hydrostatic pressure as power to drive the piston to reciprocate, and the piston impacts the drill rod at high speed during stroke, so that the drill rod breaks the ore, concrete and other solids. The power source of the breaking hammer is the pressure oil provided by the pump station of the excavator or loader, which can more effectively clean the floating stones and soil in the rock gaps in the action of excavating the foundation of the building.

However, the existing breaking hammer has very large acting force on the hammer core during working, particularly under the conditions of hard geology and hard breaking, a large amount of striking energy is transmitted back to the hammer core and is transmitted back to the oil cylinder and other structures through the connected structure, so that a large amount of heat is generated, and the service life and the use cost of the breaking hammer can be influenced.

Disclosure of utility model

The utility model provides a buffering and heat-dissipating structure of a breaking hammer movement, and aims to solve the existing problems.

The utility model is realized in this way, a buffer heat dissipation structure of breaking hammer core, the buffer heat dissipation structure of breaking hammer core includes: the cylinder has been seted up in preceding cylinder body and the well cylinder body in, the inside sliding connection of cylinder has the piston, piston bottom fixedly connected with connecting block, the inside sliding connection of preceding cylinder body has the drill rod, and first buffer tank has been seted up at the drill rod top, and the connecting block bottom extends to inside the first buffer tank, is provided with first buffering subassembly in the first buffer tank, first buffering subassembly includes: the novel heat dissipation device comprises a plurality of first buffer cushions, a plurality of first buffer rings, first vent holes and first heat dissipation pipelines, wherein the bottoms of the first buffer cushions are abutted against the bottoms of the inner walls of the first buffer grooves, the tops of the first buffer cushions are abutted against the bottoms of the connecting blocks, the first buffer rings are sleeved on the periphery of the connecting blocks, the bottoms of the first buffer rings are abutted against the bottoms of the connecting blocks, the tops of the first buffer rings are abutted against the tops of the inner walls of the first buffer grooves, the first buffer cushions are fixedly connected with each other through gaskets, the first vent holes are formed in the centers of the first buffer cushions, the bottoms of the first vent holes are fixedly communicated with the first heat dissipation pipelines, the tops of the first heat dissipation pipelines are fixedly communicated with the first buffer grooves, and a plurality of heat dissipation branch pipes are fixedly communicated with the bottoms of the first heat dissipation pipelines.

Preferably, the buffering heat dissipation structure of the breaking hammer core further comprises: the rear cylinder body is fixedly connected with the middle cylinder body and the front cylinder body through bolts.

Preferably, the buffering heat dissipation structure of the breaking hammer core further comprises: a second buffer tank and a second buffer assembly, the second buffer assembly comprising: the piston bottom is provided with a second buffer groove, the connecting block extends to the inside of the second buffer groove, a plurality of second buffer cushions and a plurality of second buffer rings are arranged in the second buffer groove, the top of each second buffer cushion is abutted against the top of the inner wall of the second buffer groove, the bottom of each second buffer cushion is abutted against the top of each connecting block, the second buffer rings are sleeved on the periphery of the connecting block, the bottom of each second buffer ring is abutted against the bottom of the inner wall of the first buffer groove, the second buffer rings are fixedly connected with each other through gaskets, the second heat dissipation pipeline is arranged inside the connecting block, the top of each second heat dissipation pipeline is fixedly communicated with the corresponding second vent hole, and the bottom of each second buffer ring is communicated with the corresponding first vent hole.

Preferably, the second buffer assembly and the first buffer assembly are symmetrically arranged.

Preferably, the cross-sectional area of the first heat dissipation pipe is larger than the cross-sectional area of the first vent hole.

Preferably, the dustproof net is fixedly connected at the joint of the heat dissipation branch pipe and the outer wall of the drill rod.

Compared with the prior art, the utility model has the beneficial effects that:

the buffering heat dissipation structure of the breaking hammer core can absorb striking energy transmitted back to the hammer core and emit heat generated by the striking energy, so that the service life of the breaking hammer is prolonged, and the use cost of the breaking hammer is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing the overall structure of embodiment 1 of the present utility model;

FIG. 2 is an enlarged schematic view of the structure at A in embodiment 1 of the present utility model;

FIG. 3 is an enlarged schematic view of the structure at B in embodiment 1 of the present utility model;

Fig. 4 is a schematic structural view of embodiment 2 of the present utility model.

The reference numerals in the drawings are: 1. a rear cylinder; 2. a middle cylinder; 3. a front cylinder; 4. a piston; 5. a drill rod; 6. a connecting block; 7. a first cushioning assembly; 701. a first cushion pad; 702. a first buffer ring; 703. a first vent hole; 704. a first heat dissipation pipe; 8. a first buffer tank; 9. a dust screen; 10. a second buffer tank; 11. a second cushioning assembly; 1101. a second cushion pad; 1102. a second buffer ring; 1103. a second vent hole; 1104. and a second heat dissipation pipeline.

Detailed Description

In order to more fully understand the technical content of the present utility model, the following technical solutions of the present utility model will be further described and illustrated with reference to specific embodiments, but are not limited thereto. The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the product of the present utility model is conventionally put when used, it is merely for convenience of describing the present utility model and simplifying the description, and it does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be attached, detached, or integrated, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Examples

Referring to fig. 1 to 3, the buffering and heat dissipation structure of the breaking hammer core includes: the device comprises a rear cylinder body 1, a middle cylinder body 2, a front cylinder body 3, a piston 4, a drill rod 5, a connecting block 6, a first buffer assembly 7, a first buffer groove 8 and a dust screen 9. The rear cylinder body 1 is fixedly connected with the middle cylinder body 2, the middle cylinder body 2 is fixedly connected with the front cylinder body 3 through bolts, the upper cylinder body is used for storing low-pressure nitrogen, a piston 4, an energy accumulator, an oil seal, a ventilation valve and the like are arranged in the middle cylinder body 2, and steel bars, flat pins, transverse pins, inner and outer bushings and the like are arranged in the lower cylinder body; an oil cylinder is arranged in the middle cylinder body 2, a piston 4 is connected in the oil cylinder in a sliding way, and a connecting block 6 is fixedly connected to the bottom of the piston 4; the front cylinder body 3 is internally and slidably connected with a drill rod 5, a first buffer groove 8 is formed in the top of the drill rod 5, and a clamping block is fixedly connected with the bottom end of the connecting block 6 extending to the inside of the first buffer groove 8; a first buffer assembly 7 is arranged in the first buffer tank 8, and the first buffer assembly 7 comprises: the bottom of the first buffer cushion 701 abuts against the bottom of the inner wall of the first buffer groove 8, the top of the first buffer cushion 701 abuts against the bottom of the clamping block, the first buffer cushion 702 is sleeved on the periphery of the connecting block 6, the bottom of the first buffer cushion 702 abuts against the top of the clamping block, the top of the first buffer cushion 702 abuts against the top of the inner wall of the first buffer groove 8, and the plurality of first buffer cushions 701 and the plurality of first buffer cushions 702 are fixedly connected through gaskets; the centers of the first buffer cushions 701 are provided with first vent holes 703, the bottoms of the first vent holes 703 are fixedly communicated with first heat dissipation pipelines 704, and the cross sectional area of the first heat dissipation pipelines 704 is larger than that of the first vent holes 703; the top of the first heat dissipation pipeline 704 is fixedly communicated with the first buffer slot, the bottom of the first heat dissipation channel is fixedly communicated with a plurality of heat dissipation branch pipes, the connection part of the heat dissipation branch pipes and the outer wall of the drill rod 5 is fixedly connected with a dust screen 9, and the dust screen 9 is used for preventing external dust from entering the interior and avoiding blocking the heat dissipation branch pipes and the first heat dissipation pipeline 704; when the breaking hammer works, the piston 4 moves back and forth in the oil cylinder, the drill rod 5 is impacted at a high speed through the connecting block 6, the drill rod 5 breaks the ore, concrete and other solids, a large amount of striking energy is transmitted back through the drill rod 5, the drill rod 5 impacts the connecting block 6, the connecting block 6 is impacted and extruded to form the first buffer pad 701 and the first buffer ring 702, and the first buffer pad 701 and the first buffer ring 702 deform to absorb impact force.

Examples

Referring to fig. 4, the difference from embodiment 1 is that a second buffer tank 10 and a second buffer assembly 11 are added, the second buffer assembly 11 includes: the second buffer tank 10 is arranged at the bottom of the piston 4, the top end of the connecting block 6 extends to the inside 10 of the second buffer tank and is fixedly connected with clamping blocks, a plurality of second buffer pads 1101 and a plurality of second buffer rings 1102 are arranged in the second buffer tank 10, the top of the second buffer pad 1101 is abutted against the top of the inner wall of the second buffer tank 10, the bottom of the second buffer pad 1101 is abutted against the top of the clamping blocks, the second buffer rings 1102 are sleeved on the periphery of the connecting block 6, the top of the second buffer ring 1102 is abutted against the bottom of the clamping blocks, the bottom of the second buffer ring 1102 is abutted against the bottom of the inner wall of the first buffer tank 8, a plurality of second buffer pads 1101 and a plurality of second buffer rings 1102 are fixedly connected through gaskets, and the second buffer assemblies 11 and the first buffer assemblies 7 are symmetrically arranged; the second heat dissipation pipeline 1104 is arranged in the connecting block 6, the top of the second heat dissipation pipeline 1104 is fixedly communicated with the second ventilation hole 1103, the bottom of the second heat dissipation pipeline 1104 is communicated with the first ventilation hole 703, and heat in the second buffer tank 10 is conveniently transmitted to the first heat dissipation pipeline 704 along the second heat dissipation pipeline 1104 and is discharged out of the breaking hammer through the heat dissipation branch pipe. When a large amount of striking energy is returned through the drill rod 5, the drill rod 5 impacts the connecting block 6, the connecting block 6 is impacted and extruded to press the first buffer component and the second buffer component, and the first buffer pad 701, the first buffer ring 702, the second buffer pad 1101 and the second buffer ring 1102 deform to absorb impact force.

The above embodiments are only some embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto, and any person skilled in the art should be able to apply equivalents and modifications according to the technical solution and the inventive concept thereof within the scope of the present utility model.

Claims

1. The utility model provides a buffering heat dissipation structure of quartering hammer core which characterized in that, this buffering heat dissipation structure of quartering hammer core includes: the novel hydraulic buffer device comprises a front cylinder body (3) and a middle cylinder body (2), wherein an oil cylinder is arranged in the middle cylinder body (2), a piston (4) is connected to the inside of the oil cylinder in a sliding manner, a connecting block (6) is fixedly connected to the bottom of the piston (4), a drill rod (5) is connected to the inside of the front cylinder body (3) in a sliding manner, a first buffer groove (8) is formed in the top of the drill rod (5), the bottom end of the connecting block (6) extends to the inside of the first buffer groove (8), a first buffer component (7) is arranged in the first buffer groove (8), and the first buffer component (7) comprises: the novel heat dissipation device comprises a plurality of first buffer cushions (701), a plurality of first buffer rings (702), first vent holes (703) and first heat dissipation pipelines (704), wherein the bottoms of the first buffer cushions (701) are abutted against the bottoms of the inner walls of the first buffer grooves (8), the tops of the first buffer cushions (701) are abutted against the bottoms of the connecting blocks (6), the first buffer rings (702) are sleeved on the peripheries of the connecting blocks (6), the bottoms of the first buffer rings (702) are abutted against the tops of the connecting blocks (6), the tops of the first buffer rings (702) are abutted against the tops of the inner walls of the first buffer grooves (8), the first buffer cushions (701) are fixedly connected through gaskets, the first vent holes (703) are formed in the centers of the first buffer cushions (701), the bottoms of the first vent holes (703) are fixedly communicated with the first heat dissipation pipelines (704), the tops of the first heat dissipation pipelines (704) are fixedly communicated with the first buffer grooves, and the bottoms of the first heat dissipation pipelines are fixedly communicated with a plurality of branch pipes.

2. The buffering and heat-dissipating structure of a breaking hammer movement of claim 1, further comprising: the rear cylinder body (1), the rear cylinder body (1) and the middle cylinder body (2), and the middle cylinder body (2) and the front cylinder body (3) are fixedly connected through bolts.

3. The buffering and heat-dissipating structure of a breaking hammer movement of claim 1, further comprising: a second buffer tank (10) and a second buffer assembly (11), the second buffer assembly (11) comprising: a plurality of second blotters (1101), a plurality of second buffer rings (1102), second ventilation holes (1103) and second heat dissipation pipeline (1104), second buffer groove (10) have been seted up to piston (4) bottom, connecting block (6) extend to second buffer groove (10) inside, be provided with a plurality of second blotters (1101) and a plurality of second buffer rings (1102) in second buffer groove (10), second blotter (1101) top supports tightly at second buffer groove (10) inner wall top, second blotter (1101) bottom supports tightly connecting block (6) top, second buffer ring (1102) cup joint at connecting block (6) periphery, and second buffer ring (1102) bottom supports tightly connecting block (6), between a plurality of second buffer rings (1101), also through fixed connection between a plurality of second buffer rings (1102), second heat dissipation pipeline (1104) are seted up inside connecting block (6), second heat dissipation pipeline (1104) top and second ventilation hole (703) bottom intercommunication, first ventilation hole (703) bottom.

4. A buffer and heat dissipation structure for a breaking hammer movement according to claim 3, characterized in that the second buffer assembly (11) is arranged symmetrically to the first buffer assembly (7).

5. The buffering and heat-dissipating structure of a breaking hammer movement according to claim 1, characterized in that the cross-sectional area of the first heat-dissipating duct (704) is larger than the cross-sectional area of the first vent hole (703).

6. The buffering and heat-dissipating structure of the breaking hammer movement according to claim 1, wherein a dust screen (9) is fixedly connected to the joint of the heat-dissipating branch pipe and the outer wall of the drill rod (5).