Damping type hydraulic breaking hammer

Abstract

The utility model belongs to the technical field of hydraulic breaking hammers, particularly relates to a damping type hydraulic breaking hammer, and aims to solve the problems that an existing hydraulic breaking hammer does not have buffering and damping functions, and a drill rod is inconvenient to disassemble and replace, the damping type hydraulic breaking hammer comprises a cylinder body, and two connecting pieces are arranged at the top of the cylinder body. A plurality of mounting holes are formed in the two connecting pieces, a hydraulic cavity groove is formed in the cylinder body, an impact piston is slidably mounted in the hydraulic cavity groove, the right side of the hydraulic cavity groove communicates with a hydraulic opening, a damping shock absorber is arranged on the left side of the impact piston, a mounting piece is connected to the damping shock absorber, and the mounting piece is slidably connected with the inner wall of the hydraulic cavity groove; a mounting mechanism is arranged on the left side of the mounting piece and provided with a drill rod. The drill rod is simple in structure, the drill rod is used for crushing an object, when the drill rod is subjected to counter-acting force from the object, the arranged damping shock absorber is used for shock absorption, and the drill rod can be conveniently detached and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic breaker hammers, in particular to a shock-absorbing hydraulic breaker hammer. Background Art

[0002] Hydraulic breaker, also known as "breaker" or "crusher", is installed on the bucket or loading part of excavators and loaders to break stones and rocks. The working principle of hydraulic breaker is: the hydraulic pump of the excavator and loader outputs pressure oil as the power, and the piston is controlled to reciprocate through the distribution valve. During the stroke, the rear chamber of the breaker cylinder enters the high-pressure hydraulic oil, and the piston is impacted by the compressed nitrogen in the rear bar and the high-pressure oil to break the rock with the drill rod; during the return stroke, the front chamber of the middle cylinder is connected to the high-pressure oil, which pushes the piston backward and compresses the nitrogen in the upper cylinder body, thus completing a working cycle. The piston repeatedly strokes and returns, causing the drill rod to impact and break rocks, stones, concrete, etc. After searching, the patent document with publication (announcement) number: CN206015758U provides a hydraulic breaker, including a drill rod, a front cylinder body, a middle cylinder body, a rear cylinder body, an impact piston and a reversing valve, wherein the front cylinder body, the middle cylinder body and the rear cylinder body are connected in sequence, the drill rod is inserted in the front cylinder body, the impact piston is sleeved in the middle cylinder body, two inwardly recessed flat grooves are arranged near the rear end of the drill rod, the two flat grooves are arranged longitudinally and symmetrically with the axis of the drill rod as the center, flat pins that are compatible with the drill rod and serve as a guide are arranged on both sides of the flat grooves inside the front cylinder body, and the flat pins pass through the front cylinder body, and the front cylinder body, the middle cylinder body and the rear cylinder body are externally connected to a bracket body, and flat pin fixing columns are arranged on the upper and lower sides of the flat pin on the bracket body to limit the movement of the flat pin.

[0003] The existing hydraulic breaker has no buffering and shock absorbing function, and the drill rod is not convenient to disassemble and replace. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the existing hydraulic breaker hammer, that is, the existing hydraulic breaker hammer has no buffering and shock absorbing function and the drill rod is inconvenient to be disassembled and replaced, and proposes a shock absorbing hydraulic breaker hammer.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A shock-absorbing hydraulic breaker comprises a cylinder body, two connecting parts are arranged on the top of the cylinder body, a plurality of mounting holes are opened on the two connecting parts, a hydraulic cavity is arranged in the cylinder body, an impact piston is slidably installed in the hydraulic cavity, a hydraulic port is connected to the right side of the hydraulic cavity, a damping shock absorber is arranged on the left side of the impact piston, a mounting part is connected to the damping shock absorber, the mounting part is slidably connected to the inner wall of the hydraulic cavity, a mounting mechanism is arranged on the left side of the mounting part, a drill rod is installed on the mounting mechanism, an arc-shaped limit plate is fixedly installed on the left side of the cylinder body, a through hole is opened on the arc-shaped limit plate, and the drill rod is movably connected to the through hole.

[0007] Preferably, the mounting mechanism comprises a hexagonal rod, the hexagonal rod is fixedly mounted to the drill rod, a hexagonal groove is provided on the left side of the mounting piece, and the hexagonal rod is movably connected to the hexagonal groove.

[0008] Preferably, rectangular holes are provided on both sides of the mounting member, locking rods are slidably installed in the two rectangular holes, and slots are provided on both sides of the hexagonal rod, and the locking rods are connected to the corresponding slots.

[0009] Preferably, the end of the locking rod is arranged obliquely, a limiting plate is fixedly installed on the outer side of the locking rod, and a wristband is fixedly installed on the outer side of the limiting plate.

[0010] Preferably, an elastic groove is provided at the bottom of the locking rod, an elastic block is slidably installed in the elastic groove, the elastic block is fixedly installed on the inner wall of the rectangular hole, and a spring is fixedly installed between the elastic block and the elastic groove.

[0011] Preferably, strip holes are provided on both sides of the cylinder body, the two strip holes are communicated with the hydraulic cavity groove and are located on the left side of the impact piston, and the two limit plates are movably connected to the two strip holes.

[0012] In the utility model, the beneficial effects of the shock-absorbing hydraulic breaker are:

[0013] In this solution, the hydraulic port is connected to a hydraulic generator, and the hydraulic pressure enters the hydraulic cavity to impact the impact piston, and the impact piston pushes the mounting part to move through the damping shock absorber, and the mounting part pushes the drill rod to move through the hexagonal rod. By controlling the hydraulic retraction and release, the drill rod is telescopically moved, and the drill rod is used to break objects. When the drill rod is subjected to the reaction force from the object, the damping shock absorber is provided to reduce the shock;

[0014] When the drill rod needs to be disassembled and replaced in this solution, the two hand rings are pulled away from each other, and the two hand rings drive the two locking rods to move away from each other. The locking rods leave the corresponding card slots, and the fixation of the hexagonal rod can be released, which can facilitate the disassembly of the drill rod and the hexagonal rod. When reinstalling, the hexagonal rod is inserted into the hexagonal groove, and the spring provides elastic force for the locking rod, so that the locking rod enters the card slot, and the hexagonal rod is fixed by the two locking rods, and then the drill rod is installed;

[0015] The utility model has a simple structure, utilizes the drill rod to break an object, and when receiving a reaction force from the object, the damping shock absorber is used to reduce shock, so the drill rod can be conveniently disassembled and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the shock-absorbing hydraulic breaker proposed by the utility model;

[0017] Figure 2 The utility model proposed Figure 1 A schematic cross-sectional structure diagram of ;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the connection of the mounting member, the hexagonal rod, and the two locking rods proposed in the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the connection structure of the mounting piece, the hexagonal rod and the drill rod.

[0020] In the figure: 1. cylinder body; 2. connecting part; 3. mounting hole; 4. arc-shaped limit plate; 5. drill rod; 6. hydraulic cavity groove; 7. damping shock absorber; 8. mounting part; 9. hexagonal groove; 10. hexagonal rod; 11. rectangular hole; 12. locking rod; 13. elastic block; 14. slot; 15. elastic groove; 16. spring; 17. limit plate; 18. wrist ring; 19. impact piston; 20. hydraulic port; 21. strip hole. DETAILED DESCRIPTION

[0021] The technical solution of this embodiment will be clearly and completely described below in conjunction with the drawings in this embodiment. Obviously, the described embodiment is only a part of this embodiment, rather than all of the embodiments.

[0022] Embodiment 1

[0023] Reference Figure 1-Figure 4 A shock-absorbing hydraulic breaker comprises a cylinder body 1, two connecting members 2 are arranged on the top of the cylinder body 1, and a plurality of mounting holes 3 are opened on the two connecting members 2, a hydraulic cavity 6 is arranged in the cylinder body 1, an impact piston 19 is slidably installed in the hydraulic cavity 6, a hydraulic port 20 is connected to the right side of the hydraulic cavity 6, a damping shock absorber 7 is arranged on the left side of the impact piston 19, when the drill rod 5 is subjected to the reaction force from the object, the damping shock absorber 7 is provided for shock absorption, a mounting member 8 is connected to the damping shock absorber 7, the mounting member 8 is slidably connected to the inner wall of the hydraulic cavity 6, a mounting mechanism is arranged on the left side of the mounting member 8, and the drill rod 5 is installed on the mounting mechanism, an arc-shaped limit plate 4 is fixedly installed on the left side of the cylinder body 1, a through hole is opened on the arc-shaped limit plate 4, and the drill rod 5 is movably connected with the through hole; the arc-shaped limit plate 4 is used to support and guide the drill rod 5.

[0024] In this embodiment, the mounting mechanism includes a hexagonal rod 10, which is fixedly mounted on the drill rod 5. A hexagonal groove 9 is provided on the left side of the mounting member 8, and the hexagonal rod 10 is movably connected to the hexagonal groove 9.

[0025] In this embodiment, rectangular holes 11 are provided on both sides of the mounting member 8, and locking rods 12 are slidably installed in the two rectangular holes 11. Slots 14 are provided on both sides of the hexagonal rod 10, and the locking rods 12 are connected to the corresponding slots 14. The ends of the locking rods 12 are inclined, and a limiting plate 17 is fixedly installed on the outer side of the locking rod 12, and a wristband 18 is fixedly installed on the outer side of the limiting plate 17; the locking rod 12 enters the slot 14, and the hexagonal rod 10 is fixed by the two locking rods 12, and then the drill rod 5 is installed.

[0026] In this embodiment, an elastic groove 15 is provided at the bottom of the locking rod 12, and an elastic block 13 is slidably installed in the elastic groove 15. The elastic block 13 is fixedly installed on the inner wall of the rectangular hole 11, and a spring 16 is fixedly installed between the elastic block 13 and the elastic groove 15; the spring 16 provides elastic force for the drill rod 5.

[0027] In this embodiment, strip holes 21 are provided on both sides of the cylinder body 1 . The two strip holes 21 are communicated with the hydraulic cavity 6 and are located on the left side of the impact piston 19 . The two limit plates 17 are movably connected to the two strip holes 21 .

[0028] Working principle: when in use, the whole is installed on the machine through two connecting parts 2, and the hydraulic port 20 is connected to the hydraulic generator. The hydraulic pressure enters the hydraulic cavity 6 to impact the impact piston 19. The impact piston 19 pushes the mounting part 8 to move through the damping shock absorber 7. The mounting part 8 pushes the drill rod 5 to move through the hexagonal rod 10. By controlling the hydraulic retraction and release, the drill rod 5 is telescopically moved. The drill rod 5 is used to break objects. When it is subjected to the reaction force from the object, it is damped by the damping shock absorber 7. When the drill rod 5 is disassembled and replaced, the two hand rings 18 are pulled away from each other, and the two hand rings 18 drive the two locking rods 12 to move away from each other. The locking rods 12 leave the corresponding slots 14, and the fixation of the hexagonal rod 10 can be released, so that the drill rod 5 and the hexagonal rod 10 can be easily disassembled. When reinstalling, the hexagonal rod 10 is inserted into the hexagonal groove 9, and the spring 16 provides elastic force for the locking rod 12, so that the locking rod 12 enters the slot 14, and the hexagonal rod 10 is fixed by the two locking rods 12, and then the drill rod 5 is installed.

[0029] Embodiment 2

[0030] The difference between Example 2 and Example 1 is that the locking rod 12 is replaced with a bolt, the rectangular hole 11 is replaced with a screw hole, the bolt is threadedly connected to the screw hole, and the bolt enters the slot 14 to fix the hexagonal rod 10. Removing the bolt from the slot 14 can release the fixation of the hexagonal rod 10, making it convenient to replace the drill rod 5. This application includes all structural shapes, sizes and materials of Example 1, which can be selected and adjusted to meet specific usage conditions. The accompanying drawings are all schematic structural diagrams, and the specific actual sizes can be appropriately adjusted.

[0031] The above is only a preferred specific implementation of this embodiment, but the protection scope of this embodiment is not limited to this. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of this embodiment within the technical scope disclosed in this embodiment, which should be covered by the protection scope of this embodiment.

Claims

1. A shock-absorbing hydraulic breaker, comprising a cylinder body (1), wherein two connecting members (2) are arranged on the top of the cylinder body (1), and a plurality of mounting holes (3) are provided on the two connecting members (2), wherein: The cylinder body (1) is provided with a hydraulic cavity (6), an impact piston (19) is slidably mounted in the hydraulic cavity (6), the right side of the hydraulic cavity (6) is connected to a hydraulic port (20), a damping shock absorber (7) is provided on the left side of the impact piston (19), a mounting member (8) is connected to the damping shock absorber (7), the mounting member (8) is slidably connected to the inner wall of the hydraulic cavity (6), a mounting mechanism is provided on the left side of the mounting member (8), and a drill rod (5) is mounted on the mounting mechanism.

2. The shock-absorbing hydraulic breaker according to claim 1, characterized in that: The mounting mechanism comprises a hexagonal rod (10), the hexagonal rod (10) is fixedly mounted on the drill rod (5), a hexagonal groove (9) is provided on the left side of the mounting member (8), and the hexagonal rod (10) is movably connected to the hexagonal groove (9).

3. The shock-absorbing hydraulic breaker according to claim 2, characterized in that: Rectangular holes (11) are provided on both sides of the mounting member (8), locking rods (12) are slidably installed in the two rectangular holes (11), and slots (14) are provided on both sides of the hexagonal rod (10), and the locking rods (12) are connected to the corresponding slots (14).

4. The shock-absorbing hydraulic breaker according to claim 3, characterized in that: The end of the locking rod (12) is arranged obliquely, a limiting plate (17) is fixedly mounted on the outer side of the locking rod (12), and a hand ring (18) is fixedly mounted on the outer side of the limiting plate (17).

5. The shock-absorbing hydraulic breaker according to claim 3, characterized in that: The bottom of the locking rod (12) is provided with an elastic groove (15), an elastic block (13) is slidably installed in the elastic groove (15), the elastic block (13) is fixedly installed on the inner wall of the rectangular hole (11), and a spring (16) is fixedly installed between the elastic block (13) and the elastic groove (15).

6. The shock-absorbing hydraulic breaker according to claim 1, characterized in that: An arc-shaped limiting plate (4) is fixedly installed on the left side of the cylinder body (1), a through hole is opened on the arc-shaped limiting plate (4), and a drill rod (5) is movably connected to the through hole.

7. The shock-absorbing hydraulic breaker according to claim 4, characterized in that: The cylinder body (1) is provided with strip holes (21) on both sides. The two strip holes (21) are both connected to the hydraulic cavity groove (6) and are located on the left side of the impact piston (19). The two limit plates (17) are movably connected to the two strip holes (21).

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