Mine breaking hammer convenient to maintain

Abstract

The utility model relates to the technical field of mining and engineering construction, and discloses a mine breaking hammer convenient to maintain, which comprises a shell, a middle cylinder body is fixedly connected in the shell, the right end of the middle cylinder body is fixedly connected with a lower cylinder body, a plurality of sleeve pin holes are formed in the right side of the lower cylinder body, and a plurality of sleeve pin holes are formed in the right side of the lower cylinder body. An ejection device is arranged on the inner wall of the lower cylinder body, a plurality of flat pins are arranged on the inner wall of the left side of the lower cylinder body, a plurality of rubber plugs are fixedly connected to the interior of the lower cylinder body, a split sleeve is arranged in the right side of the lower cylinder body, and a vibration assembly used for crushing is slidably connected to the interior of the split sleeve; a plurality of clamping springs are fixedly connected to the inner wall of the outer portion of the lower cylinder body, and a leather cup is arranged on the inner wall of the outer portion of the lower cylinder body. According to the utility model, full transmission of energy of the piston is ensured, and internal damage caused by left-right deflection of the piston is reduced. Due to the structural design, the durability of the breaking hammer is greatly improved, and the service life of the breaking hammer is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of mining and engineering construction, in particular to a mine breaker hammer which is easy to maintain. Background Art

[0002] A mining breaker is a tool installed on construction machinery such as excavators and used to break hard objects such as rocks and concrete in mining, road construction and other operations. In mining operations, the breaker needs to continue to perform high-intensity crushing work. This high-intensity use will cause the various components of the breaker to be subjected to tremendous pressure and impact force, thereby accelerating the aging and damage of the components. For example, the piston is prone to wear and poor sealing during continuous reciprocating motion; the force transmission block will be deformed or damaged in the process of transmitting huge energy. Currently, maintenance mainly involves replacing parts under flame cutting and moving parts by manpower, etc., which is convenient for maintenance and can replace damaged parts in a timely manner to ensure the normal operation of the breaker and improve work efficiency.

[0003] In the prior art, the connection method of the internal components of the lower cylinder of some mining breakers is relatively complicated, and there is a lack of effective buffering mechanism, which can easily cause collisions between the piston and other components during use, causing internal damage and reducing the service life of the breaker. For example, when the internal part is worn, the piston cannot be vertical and hit the drill rod, and the maintenance of traditional mining breakers is relatively difficult. When replacing the wearing parts inside the lower cylinder, it often takes a lot of time and manpower, and the disassembly and installation process is cumbersome, requiring professional personnel to operate, and there are certain safety risks during the operation. For example, when replacing components such as the leather cup, the bottom seal of the accumulator, and the bottom seal of the valve body, there is a lack of convenient operation methods and tools, which makes the maintenance work inefficient and increases the cost of mining operations. Therefore, in view of the above shortcomings, a mining breaker that is easy to maintain is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a mine breaker hammer that is easy to maintain, aiming to improve the problems of the mine breaker hammer in the prior art, such as complex structure leading to difficult maintenance, lack of effective buffering and easy damage, and insufficient lubrication exacerbating wear.

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

[0006] A mine breaker that is convenient for maintenance, including a housing. Inside the housing, a middle cylinder body is fixedly connected. The right end of the middle cylinder body is fixedly connected to a lower cylinder body. Inside the right side of the lower cylinder body, a plurality of socket pin holes are provided. On the inner wall of the lower cylinder body, an ejection device is arranged. On the left inner wall of the lower cylinder body, a plurality of flat pins are provided. Inside the lower cylinder body, a plurality of leather plugs are fixedly connected. Inside the right side of the lower cylinder body, a split sleeve is arranged. Inside the split sleeve, a vibration assembly for breaking is slidably connected. On the outer wall of the lower cylinder body, a plurality of snap rings are fixedly connected. On the outer wall of the lower cylinder body, a leather cup is arranged. On the outer side of the lower cylinder body, a flat pin hole is provided. On the inner wall of the lower cylinder body, a plurality of round socket pins are arranged. On the outer side of the lower cylinder body, a sealing cover is fixedly connected. On the outer side of the lower cylinder body, a flat round pin is fixedly connected. At the right end of the lower cylinder body, an opening is provided. On the housing, a plurality of assembly holes are provided.

[0007] Further, an integral sleeve is fixedly connected inside the lower cylinder body, a top sleeve block is fixedly connected inside the lower cylinder body, a support ring is arranged inside the lower cylinder body, a piston is arranged inside the middle cylinder body, an inflation valve is fixedly connected to one side of the middle cylinder body, a commutation valve assembly is fixedly connected to one side of the middle cylinder body, an accumulator assembly is fixedly connected to one side of the middle cylinder body, a nitrogen chamber is arranged inside the right side of the middle cylinder body, and the outside of the leather cup is arranged inside the accumulator assembly.

[0008] Further, the vibration assembly includes a drill rod. The outside of the drill rod is slidably connected inside the split sleeve. The inside of the flat pin hole is slidably connected to the outside of the flat pin and is stuck at the groove of the drill rod. A convex arc surface is arranged on the upper side of the drill rod.

[0009] Further, a force transmission block is arranged inside the lower cylinder body, and there is a gap of several millimeters between the force transmission block and the inner wall of the lower cylinder body.

[0010] Further, a plurality of valve body bottom seals are arranged inside the lower cylinder body, an accumulator bottom seal is arranged inside the middle cylinder body, and a plurality of bolts are threadedly connected to the outer wall of the lower cylinder body.

[0011] Further, a convex platform is arranged on the top side of the force transmission block, and a concave arc surface is arranged on the bottom side of the force transmission block.

[0012] Further, one side of the support ring is fixedly connected to one side of the piston, and a plurality of grease holes are arranged inside the lower cylinder body.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the present utility model, through the cooperation of components such as round socket pins, flat pins, and cross pins, the entire structure is stable and reliable. There is a gap of several millimeters between the force transmission block and the lower cylinder block, allowing the force transmission block to swing left and right, and front and back in the vertical plane of the piston. When the integral split sleeve wears, the force transmission block can swing with the drill rod to ensure full contact of the arc surface. At the same time, the upper surface of the force transmission block continues to maintain planar contact with the piston, ensuring the full transmission of the piston's energy and reducing internal damage caused by the left and right yaw of the piston. This structural design greatly improves the durability of the breaker and extends its service life.

[0015] 2. In the present utility model, by loosening the corresponding screws, installing the lifting ring, and using tools such as a manual hoist, the replacement work can be completed safely and efficiently. This design that is convenient for maintenance greatly reduces the maintenance cost and improves the efficiency of mining operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional view of a mining breaker that is convenient for maintenance proposed by the present utility model;

[0017] Figure 2 is a schematic structural view of the lower cylinder block of a mining breaker that is convenient for maintenance proposed by the present utility model;

[0018] Figure 3 is a schematic structural view of the middle cylinder block of a mining breaker that is convenient for maintenance proposed by the present utility model;

[0019] Figure 4 is a structural split view of a mining breaker that is convenient for maintenance proposed by the present utility model.

[0020] LEGEND DESCRIPTION:

[0021] 1. Housing; 2. Middle cylinder block; 3. Lower cylinder block; 4. Socket pin hole; 5. Drill rod; 6. Ejecting device; 7. Flat pin; 8. Leather plug; 9. Split sleeve; 10. Circlip; 11. Leather cup; 12. Force transmission block; 13. Flat pin hole; 14. Round socket pin; 15. Sealing cover; 16. Oval flat pin; 17. Opening; 18. Valve body bottom seal; 19. Accumulator bottom seal; 20. Bolt; 21. Integral sleeve; 22. Top sleeve block; 23. Support ring; 24. Piston; 25. Inflation valve; 26. Reversing valve assembly; 27. Accumulator assembly; 28. Grease hole; 29. Nitrogen chamber; 30. Assembly hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] 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 embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] Referring to Figure 1 , an embodiment provided by the present utility model: a mine breaker convenient for maintenance. The housing 1 serves as a stable foundation for the entire breaker and is fixedly connected to the middle cylinder 2 inside. The middle cylinder 2 is made of high-strength materials to ensure that it can stably carry each component inside under the harsh environment of mine operations. The right end of the middle cylinder 2 is fixedly connected to the lower cylinder 3. The lower cylinder 3 has a precise structure, and a plurality of socket pin holes 4 are provided inside the right side for fixing subsequent components.

[0024] Referring to Figures 2 to 4 , for the drill rod 5 in the vibration assembly, its outside is slidably connected inside the lower cylinder 3. There is a convex arc surface on the upper side of the drill rod 5, which can efficiently break hard objects. A flat pin 7 is slidably connected in the flat pin hole 13, and the flat pin 7 is stuck at the groove of the drill rod 5 to ensure the stable position of the drill rod 5 during the working process. An ejection device 6 is provided on the inner wall of the lower cylinder 3, and this ejection device 6 can play an important role during maintenance, facilitating the ejection of internal components for replacement or repair. A plurality of flat pins 7 are provided on the left inner wall of the lower cylinder 3 to further enhance the structural stability. A plurality of leather plugs 8 fixedly connected inside the lower cylinder 3 can effectively buffer the impact during vibration. The split sleeve 9 provided inside the right side is convenient for replacement when needed, improving the maintenance efficiency. A plurality of snap rings 10 are fixedly connected to the outer inner wall of the lower cylinder 3 to ensure that internal components will not accidentally come out. The leather cup 11 provided on the outer inner wall plays a good sealing role to prevent dust and impurities from entering the inside;

[0025] The force transmission block 12 inside the lower cylinder block 3 is crucial. There is a raised platform on the top side of the force transmission block 12 and a concave arc surface on the bottom side, with a gap of several millimeters from the inner wall of the lower cylinder block 3. It can swing left and right, and front and back in the vertical plane of the piston 24, ensuring effective energy transmission under different working conditions. The position of the flat pin hole 13 opened on the outside of the lower cylinder block 3 is accurate, facilitating the installation and fixation of the flat pin 7. The multiple sleeve round pins 14 arranged on the inner wall of the lower cylinder block 3 provide reliable support for the fixation of the integrated sleeve 21. The sealing cover 15 fixedly connected to the outside of the lower cylinder block 3 has good sealing performance, effectively preventing internal liquid leakage and dust. The externally fixedly connected flat round pin 16 enhances the stability of the overall structure. The opening 17 opened at the right end of the lower cylinder block 3 facilitates the installation and maintenance of internal components. The bottom seals 18 of multiple valve bodies arranged inside the lower cylinder block 3 ensure the sealing performance of the valve bodies. The accumulator bottom seal 19 arranged inside the middle cylinder block 2 ensures the normal operation of the accumulator. The multiple bolts 20 threadedly connected to the outer inner wall of the lower cylinder block 3 are strong and durable, capable of firmly fixing each component;

[0026] The integrated sleeve 21 fixedly connected inside the lower cylinder block 3 fits closely with other components to ensure the normal operation of the breaker. The top sleeve block 22 fixedly connected inside plays an important role when replacing vulnerable parts. The support ring 23 arranged inside. The piston 24 arranged inside the middle cylinder block 2 is the core power component of the breaker. The inflation valve 25 fixedly connected to one side of the middle cylinder block 2 facilitates filling nitrogen into the breaker. The reversing valve assembly 26 fixedly connected to one side can control the working direction of the breaker. The accumulator assembly 27 fixedly connected to one side plays a role in storing energy, and the outside of the leather cup 11 is arranged inside the accumulator assembly 27. The multiple grease holes 28 arranged inside the lower cylinder block 3 are provided with three grease inlets, capable of providing good lubrication for the moving components inside the lower cylinder block 3. The nitrogen chamber 29 arranged inside the right side of the middle cylinder block 2 provides the necessary pressure support for the operation of the breaker, and multiple assembly holes 30 are opened on the housing 1 for overall installation.

[0027] Working principle: The support ring 23 is installed in contact with the surface in the lower steel hole, the force transmission block 12 is placed inside, the integrated sleeve 21 is aligned with the pin hole position and installed in the hole in contact with the second surface. The sleeve pin holes 4 of the lower cylinder block 3 are installed with four sleeve round pins 14 to fix the integrated sleeve 21. Align the direction and insert the drill rod 5, then insert the flat pin 7 at the flat pin hole 13 of the lower cylinder block 3. At the same time, it is stuck at the groove of the lead rod. Insert the cross pin through the hole on the flat pin 7 at the cross pin hole of the lower cylinder block 3 to fix the flat pin 7. Inside the sleeve pin hole 4, install the leather plug 8 and the snap ring 10 in sequence to prevent the pin from coming out. Then install the cover at the opening 17 of the lower cylinder block 3 and fasten it with the bolt 20. There is a sealing groove on the cover, and a seal is installed in the sealing groove.

[0028] The outer diameter of the force transmission block 12 has a gap of several millimeters from the inner hole of the lower cylinder block 3. When the sleeve supporting the drill rod 5 is worn, the force transmission block 12 swings left and right, and front and back in the vertical plane of the piston 24 to ensure full contact of the force-receiving surface. The lower cylinder block 3 has a grease hole 28 with three grease inlets to lubricate the moving parts inside the lower cylinder block 3.

[0029] The upper side of the force transmission block 12 has a raised platform, and the lower side has a concave arc surface. The upper side of the drill rod 5 has a raised arc surface. When the drill rod sinks to the bottom, the force transmission block 12 contacts the edge of the sleeve, and the piston 24 contacts the upper surface of the force transmission block. At this time, there is a distance of several millimeters between the piston 24 and the buffer vertical surface of the middle steel to prevent internal bruising. When the drill rod 5 is lifted, the force transmission block 12 contacts the surface of the support ring 23. At this time, it is the point where the piston 24 operates and strikes. When the wear-resistant sleeve of the drill rod 5, the integral sleeve 21 and the split sleeve 9 are worn, the force transmission block 12 can swing with the drill rod to ensure complete contact of the arc surface. At the same time, the upper plane of the force transmission block 12 continues to maintain plane contact with the piston 24, ensuring full transmission of the energy of the piston 24 and reducing the internal damage caused by the yaw of the piston 24.

[0030] When replacing the vulnerable parts inside the lower cylinder block 3 during mining operations, first turn off the switch for supplying oil to the breaker. Then, remove the cross pin, flat pin 7, drill rod sleeve, and round pin in sequence. Then, lay the breaker flat, release the nitrogen in the nitrogen chamber 29, open the sealing cover 15, install the fastening screw of the sealing cover 15 at the threaded hole of the sealing cover 15 for pulling out, pull out the sealing cover 15, use an L-shaped crowbar to push the piston 24 towards the nitrogen chamber 29 through the opening 17, place the top sleeve block 22 at the opening 17. There is a strong magnet installed on the lower side of the top sleeve block 22, and the top sleeve block 22 attracts the force transmission block 12. At this time, stand the breaker up and place it in the working direction to observe whether the position of the top sleeve block 22 is correct. Then cover the sealing cover 15 and fasten it tightly. Open the oil supply valve and start the breaker. If the force is not enough, some nitrogen can be appropriately filled into the rear cylinder. The sleeve will come out with a series of knocks. Check the worn parts, select new parts, put the force transmission block 12 in, align the direction, put in the integral sleeve 21. If there is nitrogen in the rear cylinder, it can be drained again. It can be slowly knocked in with a sledgehammer, or a platform can be placed below and the hammer can be placed on the platform to contact the edge of the sleeve and press the sleeve in. Then insert the sleeve round pin 14, insert the drill rod 5, flat pin 7, etc. in sequence. Fill it with nitrogen and the replacement is complete.

[0031] When replacing the leather cup 11, first loosen the exhaust valve on the accumulator to release the nitrogen inside. Loosen the circle of fastening screws, install the lifting ring on the cover, insert the cross bar into the uppermost corresponding hole. Hang a manual hoist between the cross bar and the lifting ring of the accumulator, lift the cover. When it is lifted to the corresponding hole below the lifting ring, insert the cross bar. Then it is safe to continue the operation with confidence. Take out the leather cup 11, wipe the inside clean, put in the new leather cup 11, install a circle of screws, and fill it with nitrogen. The replacement is complete.

[0032] When replacing the bottom seal 19 of the accumulator, loosen the four corner screws, install a lifting ring on the accumulator, and in the same way as above, lift the accumulator and fix it, then replace the ground seal. After replacement, install it in the reverse operation.

[0033] When replacing the bottom seal 18 of the valve body, loosen the two rows of fastening screws of the valve body, move the valve body to a safe position in the same way, insert a crossbar, replace the bottom seal, and fasten it in the reverse operation.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded 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 invention shall be included in the protection scope of the present invention.

Claims

1. A mine breaker that is convenient for maintenance, comprising a housing (1), characterized in that: Inside the said housing (1), a middle cylinder block (2) is fixedly connected. At the right end of the middle cylinder block (2), a lower cylinder block (3) is fixedly connected. Inside the right side of the lower cylinder block (3), a plurality of socket pin holes (4) are provided. Inside the inner wall of the lower cylinder block (3), an ejection device (6) is arranged. On the left inner wall of the lower cylinder block (3), a plurality of flat pins (7) are provided. Inside the lower cylinder block (3), a plurality of leather plugs (8) are fixedly connected. Inside the right side of the lower cylinder block (3), a split sleeve (9) is arranged. Inside the split sleeve (9), a vibrating assembly for crushing is slidably connected. On the outer wall of the lower cylinder block (3), a plurality of snap rings (10) are fixedly connected. On the outer wall of the lower cylinder block (3), a leather cup (11) is arranged. On the outer side of the lower cylinder block (3), a flat pin hole (13) is provided. Inside the inner wall of the lower cylinder block (3), a plurality of round socket pins (14) are arranged. On the outer side of the lower cylinder block (3), a sealing cover (15) is fixedly connected. On the outer side of the lower cylinder block (3), a flat and round pin (16) is fixedly connected. At the right end of the lower cylinder block (3), an opening (17) is provided. On the housing (1), a plurality of assembly holes (30) are provided.

2. The portable maintenance rock breaker according to claim 1, characterized in that; Inside the lower cylinder block (3), a one-piece sleeve (21) is fixedly connected. Inside the lower cylinder block (3), a top sleeve block (22) is fixedly connected. Inside the lower cylinder block (3), a support ring (23) is arranged. Inside the middle cylinder block (2), a piston (24) is arranged. On one side of the middle cylinder block (2), an inflation valve (25) is fixedly connected. On one side of the middle cylinder block (2), a reversing valve assembly (26) is fixedly connected. On one side of the middle cylinder block (2), an accumulator assembly (27) is fixedly connected. Inside the right side of the middle cylinder block (2), a nitrogen chamber (29) is arranged. The outer side of the leather cup (11) is arranged inside the accumulator assembly (27).

3. The mining breaker that is easy to maintain according to claim 1, characterized in that: The vibrating assembly includes a drill rod (5). The outer side of the drill rod (5) is slidably connected inside the split sleeve (9). Inside the flat pin hole (13), it is slidably connected to the outer side of the flat pin (7) and is stuck at the groove of the drill rod (5). On the upper side of the drill rod (5), a convex arc surface is provided.

4. A mine breaker that is easy to maintain according to claim 1, characterized in that: Inside the lower cylinder block (3), a force transmission block (12) is arranged. There is a gap of several millimeters between the force transmission block (12) and the inner wall of the lower cylinder block (3).

5. The convenient-to-maintain mine breaker according to claim 1, characterized in that: Inside the lower cylinder block (3), a plurality of valve body bottom seals (18) are arranged. Inside the middle cylinder block (2), an accumulator bottom seal (19) is arranged. On the outer wall of the lower cylinder block (3), a plurality of bolts (20) are threadedly connected.

6. The convenient-to-maintain mine breaker according to claim 4, characterized in that: On the top side of the force transmission block (12), a convex platform is provided. On the bottom side of the force transmission block (12), a concave arc surface is provided.

7. The convenient-to-maintain mine breaker according to claim 2, wherein: One side of the support ring (23) is fixedly connected to one side of the piston (24). Inside the lower cylinder block (3), a plurality of grease holes (28) are arranged.

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