Protecting device for cylinder body of breaking hammer

Abstract

The utility model relates to the technical field of breaking hammers, and discloses a breaking hammer cylinder body protection device which comprises a middle cylinder body, a lower cylinder body is fixedly connected to the lower surface of the middle cylinder body, an upper cylinder body is fixedly connected to the upper surface of the middle cylinder body, a piston rod is slidably connected to the interior of the middle cylinder body, a drill rod is arranged in the lower cylinder body, and a piston rod is arranged in the drill rod. A fixing plate is fixedly connected to the interior of the middle cylinder body, a fixing column is fixedly connected to the side wall of the fixing plate, the side wall of the fixing column is sleeved with a first spring, one end of the first spring is fixedly connected to the side wall of the fixing plate, and the other end of the first spring is fixedly connected with a sliding block; the interior of the sliding block is slidably connected to the side wall of the fixing column. The drill rod is knocked downwards through the piston rod to vibrate, the second fixing block is vibrated to enable the rotating plate to rotate, the sliding block extrudes the first spring, meanwhile, the first fixing block extrudes the damper, the damping effect is achieved, and the stability of equipment is improved through the structure.

Description

Technical Field

[0001] The utility model relates to the technical field of breaker hammers, in particular to a protection device for the cylinder body of a breaker hammer. Background Art

[0002] A breaker hammer, also known as a hydraulic pick or hydraulic gun, is a construction machinery widely used in fields such as building demolition, mining, and road construction. It is powered by a hydraulic system to drive a piston to reciprocate, generating a powerful impact force to break hard materials such as concrete and rocks. Breaker hammers are suitable for a variety of complex and demanding working environments, including mining, metallurgical industry, railway and highway construction, municipal garden maintenance, building construction, and shipbuilding. They can handle hard rocks, concrete, and other building materials and are important tools for improving construction efficiency and reducing labor intensity.

[0003] A traditional breaker hammer consists of parts such as a cylinder body, a piston rod, a drill rod, and an accumulator. During operation, hydraulic oil enters the corresponding end of the piston rod through a directional control valve, pushing the piston rod to move up and down. When the piston rod rises, the hydraulic oil inside it is discharged, and at the same time, the gas in the nitrogen chamber is compressed, increasing the pressure in the nitrogen chamber. When the piston rod descends, the compressed nitrogen and hydraulic oil act together on the drill rod to generate a high-speed impact, thereby breaking the material.

[0004] During the working process of a traditional breaker hammer, strong impact forces and vibrations are generated. Prolonged use will cause damage to the cylinder body structure and shorten the service life of the equipment. Therefore, a protection device for the cylinder body of a breaker hammer is proposed to solve the above problems. Content of the Utility Model

[0005] To make up for the above deficiencies, the utility model provides a protection device for the cylinder body of a breaker hammer, aiming to improve the problems in the prior art that strong impact forces and vibrations are generated during the working process, and prolonged use will cause damage to the cylinder body structure and shorten the service life of the equipment.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The protection device for the breaker cylinder body includes a middle cylinder body. The lower surface of the middle cylinder body is fixedly connected to a lower cylinder body, and the upper surface of the middle cylinder body is fixedly connected to an upper cylinder body. A piston rod is slidably connected inside the middle cylinder body, and a drill rod is arranged inside the lower cylinder body. A fixed plate is fixedly connected inside the middle cylinder body. A fixed column is fixedly connected to the side wall of the fixed plate. A first spring is sleeved on the side wall of the fixed column. One end of the first spring is fixedly connected to the side wall of the fixed plate, and the other end of the first spring is fixedly connected to a sliding block. The sliding block is slidably connected to the side wall of the fixed column. A rotating plate is rotatably connected to the side wall of the sliding block. One end of the rotating plate is rotatably connected to a second fixed block. The side wall of the second fixed block is slidably connected to the side wall of the piston rod. A first fixed block is fixedly connected to the side wall of the rotating plate. A damper is fixedly connected between the first fixed blocks;

[0008] As a further description of the above technical solution:

[0009] A energy storage shell is arranged on the upper surface of the upper cylinder body. A nitrogen energy storage chamber two is opened inside the energy storage shell. An auxiliary component is arranged inside the energy storage shell to seal the energy storage shell. A cylindrical outer shell is arranged inside the energy storage shell;

[0010] As a further description of the above technical solution:

[0011] The auxiliary component includes a rubber pad. The side wall of the rubber pad is fixedly connected inside the energy storage shell, and the side wall of the rubber pad fits the upper surface of the upper cylinder body;

[0012] As a further description of the above technical solution:

[0013] A nitrogen energy storage chamber one is arranged inside the upper cylinder body. An accumulator is arranged inside the middle cylinder body. A connection groove is opened inside the middle cylinder body. A fixed ring is fixedly connected inside the middle cylinder body. The side wall of the piston rod is slidably connected inside the fixed ring;

[0014] As a further description of the above technical solution:

[0015] A rotating block is threadedly connected to the side wall of the cylindrical outer shell. A pressing block is slidably connected inside the cylindrical outer shell;

[0016] As a further description of the above technical solution:

[0017] A third fixed block is fixedly connected to the side wall of the pressing block. The side wall of the third fixed block is slidably connected inside the cylindrical outer shell. A rotating bar is rotatably connected to the side wall of the third fixed block;

[0018] As a further description of the above technical solution:

[0019] The lower surface of the cylindrical shell is fixedly connected with a conical head. A first groove is formed inside the conical head, and a second groove is formed inside the conical head. The side wall of the pressing block is slidably connected inside the second groove, and the side wall of the third fixing block is slidably connected inside the first groove;

[0020] As a further description of the above technical solution:

[0021] The lower surface of the pressing block is fixedly connected with a connecting column. The side wall of the connecting column is slidably connected inside the second groove. A second spring is sleeved on the side wall of the connecting column. One end of the second spring is fixedly connected to the side wall of the connecting column, and the other end of the second spring is fixedly connected inside the second groove.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the piston rod is used to strike the drill rod downward to make it vibrate, so that the second fixing block is vibrated to make the rotating plate rotate, and the sliding block squeezes the first spring. At the same time, the first fixing block squeezes the damper, achieving a shock absorption effect. This solves the problem that some breaker hammers will generate strong impact force and vibration during the working process, and long-term use will cause damage to the cylinder structure and shorten the service life of the equipment. Through the above structure, the stability of the equipment is improved.

[0024] 2. In the utility model, by installing the energy storage shell, the energy storage chamber is enlarged. Then, by pressing the pressing block, the connecting column slides into the second groove, so that the second spring is squeezed and contracted, and the rotating bar is contracted. Then, the conical head passes through the energy storage shell and the upper cylinder body. Subsequently, the pressing block is released, and the second spring returns to its original position, making the side wall of the rotating bar fit the upper cylinder body. Then, the rotating block is rotated to make it fit the energy storage shell, achieving the effect of quick installation. This solves the problem that the energy storage chamber of some breaker hammers is small, resulting in insufficient nitrogen and unable to effectively store energy, thus weakening the striking force of the breaker hammer. Through the above structure, the practicability of the equipment is improved. Description of the Drawings

[0025] Figure 1 is a three-dimensional schematic diagram of the breaker hammer cylinder protection device proposed by the utility model;

[0026] Figure 2 is a structural schematic diagram of the middle cylinder section of the breaker hammer cylinder protection device proposed by the utility model;

[0027] Figure 3 is Figure 2 an enlarged view of part A in;

[0028] Figure 4 is a structural schematic diagram of the energy storage shell of the breaker hammer cylinder protection device proposed by the utility model;

[0029] Figure 5Structural schematic diagram of the cylindrical outer shell of the protection device for the breaker cylinder body proposed by the present utility model.

[0030] Legend description:

[0031] 1. Middle cylinder body; 2. Lower cylinder body; 3. Upper cylinder body; 4. Nitrogen energy storage chamber I; 5. Accumulator; 6. Piston rod; 7. Fixed ring; 8. Drifting rod; 9. Fixed plate; 10. Fixed column; 11. First spring; 12. Sliding block; 13. Rotating plate; 14. First fixed block; 15. Damper; 16. Second fixed block; 17. Energy storage shell; 18. Rubber pad; 19. Nitrogen energy storage chamber II; 20. Cylindrical outer shell; 21. Rotating block; 22. Pressing block; 23. Third fixed block; 24. Rotating bar; 25. Conical head; 26. First groove; 27. Second groove; 28. Connecting column; 29. Second spring; 30. Connecting groove. Specific implementation manner

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] Referring to Figures 1 - 3 , an embodiment provided by the present utility model: a protection device for a breaker cylinder body, including a middle cylinder body 1, a lower cylinder body 2 fixedly connected to the lower surface of the middle cylinder body 1, an upper cylinder body 3 fixedly connected to the upper surface of the middle cylinder body 1, a piston rod 6 slidably connected inside the middle cylinder body 1, a drifting rod 8 arranged inside the lower cylinder body 2, a fixed plate 9 fixedly connected inside the middle cylinder body 1, a fixed column 10 fixedly connected to the side wall of the fixed plate 9, a first spring 11 sleeved on the side wall of the fixed column 10, one end of the first spring 11 fixedly connected to the side wall of the fixed plate 9, the other end of the first spring 11 fixedly connected to a sliding block 12, the sliding block 12 slidably connected to the side wall of the fixed column 10, a rotating plate 13 rotatably connected to the side wall of the sliding block 12, one end of the rotating plate 13 rotatably connected to a second fixed block 16, the side wall of the second fixed block 16 slidably connected to the side wall of the piston rod 6, a first fixed block 14 fixedly connected to the side wall of the rotating plate 13, a damper 15 fixedly connected between the first fixed blocks 14, a nitrogen energy storage chamber I 4 arranged inside the upper cylinder body 3, an accumulator 5 arranged inside the middle cylinder body 1, a connecting groove 30 opened inside the middle cylinder body 1, a fixed ring 7 fixedly connected inside the middle cylinder body 1, and the side wall of the piston rod 6 slidably connected inside the fixed ring 7;

[0034] During the process of operating the device to perform the crushing task, whenever the piston rod 6 acts on the drill rod 8 in a knocking manner, this knocking action will generate strong vibrations. These vibrations will be transmitted to the second fixing block 16, causing it to be affected by the vibrations. The vibrating second fixing block 16 will further cause the rotating plate 13 to rotate. The rotation of the rotating plate 13 will prompt the sliding block 12 to slide along the side wall of the fixed column 10. During the sliding process of the sliding block 12, it will apply pressure to the first spring 11, causing it to be compressed. At the same time, the first fixing block 14 will also apply pressure to the damper 15, resulting in the activation of the damper 15. During the extrusion process, the damper 15 can effectively absorb and weaken the vibration energy generated by the knocking of the piston rod 6. In this way, the damper 15 achieves the effect of shock absorption and significantly reduces the adverse effects of the vibrations generated when the piston rod 6 knocks on the cylinder block.

[0035] Referring to Figures 4 - 5 , on the upper surface of the upper cylinder block 3, there is an energy storage shell 17. Inside the energy storage shell 17, there is a nitrogen energy storage chamber two 19. Inside the energy storage shell 17, there is an auxiliary component for sealing the energy storage shell 17. Inside the energy storage shell 17, there is a cylindrical outer shell 20. The auxiliary component includes a rubber pad 18. The side wall of the rubber pad 18 is fixedly connected inside the energy storage shell 17, and the side wall of the rubber pad 18 is in contact with the upper surface of the upper cylinder block 3. The side wall of the cylindrical outer shell 20 is threadedly connected with a rotating block 21. Inside the cylindrical outer shell 20, there is a pressing block 22 slidingly connected. The side wall of the pressing block 22 is fixedly connected with a third fixing block 23. The side wall of the third fixing block 23 is slidingly connected inside the cylindrical outer shell 20. The side wall of the third fixing block 23 is rotatably connected with a rotating bar 24. The lower surface of the cylindrical outer shell 20 is fixedly connected with a conical head 25. Inside the conical head 25, there is a first groove 26. Inside the conical head 25, there is a second groove 27. The side wall of the pressing block 22 is slidingly connected inside the second groove 27. The side wall of the third fixing block 23 is slidingly connected inside the first groove 26. The lower surface of the pressing block 22 is fixedly connected with a connecting column 28. The side wall of the connecting column 28 is slidingly connected inside the second groove 27. The side wall of the connecting column 28 is sleeved with a second spring 29. One end of the second spring 29 is fixedly connected to the side wall of the connecting column 28, and the other end of the second spring 29 is fixedly connected inside the second groove 27.

[0036] During the operation of the device, first, the energy storage shell 17 needs to be closely attached to the upper cylinder block 3. Subsequently, the operator applies force to press the pressing block 22. Through this action, the connecting column 28 will move through the cylindrical outer shell 20 along with the movement of the pressing block 22 and enter the groove two 27 inside the conical head 25 along the sliding path. During this process, the second spring 29 will deform and contract due to the pressure, and at the same time, the rotating bar 24 will start to rotate due to being squeezed and finally enter the groove one 26 and closely fit with the cylindrical outer shell 20. Next, the operator needs to pass the conical head 25 through the already attached energy storage shell 17 and upper cylinder block 3. After completing this step, the operator can release the previously pressed pressing block 22. Since the second spring 29 loses the applied pressure at this time, it will start to perform a natural restoration action and push the pressing block 22 upward. This action will cause the rotating bar 24 to disengage from the groove one 26 and expand due to the restoring force of the spring, so that the side wall of the rotating bar 24 can closely fit the side wall of the upper cylinder block 3. Finally, the operator needs to rotate the rotating block 21 to a position where it completely fits the surface of the energy storage shell 17. When the rotating block 21 fits the surface of the energy storage shell 17, the entire installation process is completed. In this way, the connection between the energy storage shell 17 and the upper cylinder block 3 is achieved, effectively expanding the volume of the energy storage chamber. The rubber pad 18 installed inside the energy storage shell 17 can prevent gas leakage after installation.

[0037] Working principle: When using the device for crushing work, when the piston rod 6 strikes the drill rod 8 to generate vibration, the fixed block two 16 will be affected by the vibration and cause the rotating plate 13 to rotate, thereby pushing the sliding block 12 to slide on the side wall of the fixed column 10, squeezing the first spring 11, and at the same time causing the fixed block one 14 to squeeze the damper 15, so that the generated vibration is absorbed and weakened, thus achieving a shock absorption effect and reducing the impact of the vibration generated when the piston rod 6 strikes on the device. When using the device, by attaching the energy storage shell 17 to the upper cylinder block 3 and then pressing the pressing block 22, the pressing block 22 drives the connecting column 28 to slide into the groove two 27 inside the conical head 25 through the cylindrical outer shell 20, deforming and contracting the second spring 29, and at the same time causing the rotating bar 24 to be squeezed and rotate into the groove one 26, making the rotating bar 24 fit the cylindrical outer shell 20. At this time, then pass the conical head 25 through the energy storage shell 17 and the upper cylinder block 3, and then release the pressed pressing block 22. At this time, since the second spring 29 loses pressure and restores, it pushes the pressing block 22 upward, causing the rotating bar 24 to disengage from the groove one 26 and then expand, making the side wall of the rotating bar 24 fit the side wall of the upper cylinder block 3. At this time, then rotate the rotating block 21 to rotate it to fit the surface of the energy storage shell 17. At this time, the installation between the energy storage shell 17 and the upper cylinder block 3 is completed, thereby achieving the effect of expanding the energy storage chamber.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. The protection device for the breaker cylinder body, including the middle cylinder body (1), is characterized in that: The lower surface of the middle cylinder block (1) is fixedly connected to the lower cylinder block (2), the upper surface of the middle cylinder block (1) is fixedly connected to the upper cylinder block (3), a piston rod (6) is slidably connected inside the middle cylinder block (1), a drill rod (8) is arranged inside the lower cylinder block (2), a fixing plate (9) is fixedly connected inside the middle cylinder block (1), a fixing column (10) is fixedly connected to the side wall of the fixing plate (9), a first spring (11) is sleeved on the side wall of the fixing column (10), one end of the first spring (11) is fixedly connected to the side wall of the fixing plate (9), the other end of the first spring (11) is fixedly connected to a sliding block (12), the sliding block (12) is slidably connected to the side wall of the fixing column (10), a rotating plate (13) is rotatably connected to the side wall of the sliding block (12), one end of the rotating plate (13) is rotatably connected to a second fixing block (16), the side wall of the second fixing block (16) is slidably connected to the side wall of the piston rod (6), a first fixing block (14) is fixedly connected to the side wall of the rotating plate (13), and a damper (15) is fixedly connected between the first fixing blocks (14).

2. The breaker cylinder protection device according to claim 1, wherein: An energy storage shell (17) is arranged on the upper surface of the upper cylinder block (3), a nitrogen energy storage chamber two (19) is opened inside the energy storage shell (17), an auxiliary component is arranged inside the energy storage shell (17) for sealing the energy storage shell (17), and a cylindrical outer shell (20) is arranged inside the energy storage shell (17).

3. The protection device for the breaker cylinder body according to claim 2, wherein: The auxiliary component includes a rubber pad (18), the side wall of the rubber pad (18) is fixedly connected inside the energy storage shell (17), and the side wall of the rubber pad (18) is attached to the upper surface of the upper cylinder block (3).

4. The protection device for the breaker cylinder body according to claim 1, wherein: A nitrogen energy storage chamber one (4) is arranged inside the upper cylinder block (3), an accumulator (5) is arranged inside the middle cylinder block (1), a connection groove (30) is opened inside the middle cylinder block (1), a fixing ring (7) is fixedly connected inside the middle cylinder block (1), and the side wall of the piston rod (6) is slidably connected inside the fixing ring (7).

5. The protection device for the breaker cylinder block according to claim 2, wherein: A rotating block (21) is threadedly connected to the side wall of the cylindrical outer shell (20), and a pressing block (22) is slidably connected inside the cylindrical outer shell (20).

6. The protection device for the breaker cylinder body according to claim 5, characterized in that: A third fixing block (23) is fixedly connected to the side wall of the pressing block (22), the side wall of the third fixing block (23) is slidably connected inside the cylindrical outer shell (20), and a rotating bar (24) is rotatably connected to the side wall of the third fixing block (23).

7. The protection device for the breaker cylinder block according to claim 6, wherein: The lower surface of the cylindrical outer shell (20) is fixedly connected to a conical head (25), a first groove (26) is opened inside the conical head (25), a second groove (27) is opened inside the conical head (25), the side wall of the pressing block (22) is slidably connected inside the second groove (27), and the side wall of the third fixing block (23) is slidably connected inside the first groove (26).

8. The protection device for the breaker cylinder body according to claim 7, characterized in that: The lower surface of the pressing block (22) is fixedly connected with a connecting column (28). The side wall of the connecting column (28) is slidably connected inside the second groove (27). A second spring (29) is sleeved on the side wall of the connecting column (28). One end of the second spring (29) is fixedly connected to the side wall of the connecting column (28), and the other end of the second spring (29) is fixedly connected inside the second groove (27).

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