A new type of pick for coal mines

Abstract

The present invention relates to a new type of pick for coal mines, comprising a pick body, a pick base and a cutter head seat, wherein the pick body is fixedly connected to the pick base, and a connecting groove is provided at the top of the pick body. The present invention controls the cooling water of an external cooling pipe to continuously flow out through the inner wall of the second connecting hole through the third connecting hole to form a cycle, and in this process, takes away the heat generated by the cutter head seat, performs real-time cooling treatment on the cutter head seat and the cutter head, effectively prevents the cutter head from generating high temperature and hot melting during use, effectively improves the service life of the entire equipment, and ensures the quality of the equipment. In the use environment of the pick body, it is necessary to reduce dust and mist. The external cooling water is sprayed through the connecting hole, the jet hole, the straight spray hole and the side spray hole to form a water mist that effectively absorbs and settles the dust and mist generated during work, thereby cooling the entire equipment while absorbing the external dust and mist to reduce the raising of dust.

Description

Technical Field

[0001] The invention relates to the technical field of pick manufacturing, in particular to a new type of pick for coal mines. Background Art

[0002] Equipment used for mining or excavating in hard ground includes a rotating cutter in which a plurality of protruding picks are mounted to engage the ground. The picks bite into the ground as they rotate with the barrel, thereby impacting the earth and removing or breaking up the earth from the surface, an action particularly common in coal mining.

[0003] However, most of the current picks are of an integrated structure, and the cutter head is made of high-strength metal alloy, which is prone to damage. The only way is to replace the pick as a whole, which is not only inefficient and time-consuming and labor-intensive, but also generates a lot of heat during use. Long-term use will lead to an increase in the overall temperature of the pick, affecting the performance of the pick, and even overheating and softening, which can easily lead to failure.

[0004] Therefore, there is an urgent need for a new type of pick that is detachable and easy to replace the cutter head, and can dissipate heat and spray cooling water according to needs, thereby reducing the temperature of the equipment and effectively reducing smoke and dust. Summary of the Invention

[0005] In order to solve the problems of the prior art, the present invention provides a new type of coal mine pick

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: a new type of coal mine pick, including a pick body, a pick base and a cutter head seat, the pick body is fixedly connected to the pick base, the top of the pick body is provided with a connecting groove, the inner wall of the connecting groove is fixedly connected to the cutter head seat, a second connecting hole is provided on one side of the interior of the pick body, and a first connecting hole is provided on the other side of the pick body, a third connecting hole is provided at the bottom end of the inner wall of the connecting groove, the second connecting hole is connected to the first connecting hole through the third connecting hole, a straight spray hole is provided on the outer side of the inner wall of the connecting groove, a side spray hole is provided on the outer side of the top of the pick body, the side spray hole is connected to the straight spray hole, a jet hole is provided on the outer side of the bottom end of the cutter head seat, a fixed groove is provided inside the cutter head seat, a cutter head is placed on the inner wall of the fixed groove, and both ends of the cutter head are set to the same structure.

[0007] Preferably, the bottom ends of the first connecting hole and the second connecting hole are both provided with mounting grooves, and the inner walls of the mounting grooves are both fixedly connected with sealing rings.

[0008] Preferably, the outer wall of the cutter head seat is provided with a sliding groove, the inner wall of the sliding groove is slidably connected with a positioning piece, and the outer wall of the cutter head is provided with a snap ring groove.

[0009] Preferably, the inner wall of the snap ring groove matches the outer wall of the positioning member, the outer wall of the positioning member is provided with a groove, and the number of the positioning members is set to be multiple.

[0010] Preferably, the bottom end of the cutter head seat is sleeved on either the first mounting seat or the second mounting seat, and the bottom end of the second mounting seat is provided with a connecting hole, and the connecting hole is connected with the straight spray hole through the spray hole.

[0011] The beneficial effects of the present invention are:

[0012] 1. The present invention controls the cooling water of the external cooling pipe to continuously flow out through the third connecting hole and the inner wall of the second connecting hole to form a cycle. In this process, the heat generated by the cutter head seat is taken away, and the cutter head seat and the cutter head are cooled in real time, effectively preventing the cutter head from generating high temperature and hot melting during use, effectively improving the service life of the entire equipment, and ensuring the quality of the equipment. In the use environment of the pick body, it is necessary to reduce dust and mist. The external cooling water is sprayed out through the connecting hole, the jet hole, the straight spray hole and the side spray hole to form water mist, which effectively absorbs and settles the dust and mist generated during work, thereby cooling the entire equipment while absorbing the external dust and mist to reduce the raising of dust.

[0013] 2. When the cutter head is damaged during use, the cutter head can be removed by removing the cutter head seat and then pulling the positioning piece out from the inner wall of the retaining ring groove. The cutter head can then be inserted into the inner wall of the fixing groove in the reverse direction and the positioning piece can be pushed to fix the cutter head so that it can continue to be used. By using one thing for two purposes, the utilization rate of the cutter head is effectively increased, the waste of high-strength alloy materials is reduced, and the cost is reduced at the same time. Similarly, when other cutter heads need to be replaced, they can also be replaced conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the overall structure of the bottom end of the present invention.

[0016] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the present invention.

[0017] Figure 4 1 is a schematic diagram of the overall structure of the cutter head holder in embodiment 1 of the present invention;

[0018] Figure 5 Schematic diagram of the overall structure of the cutter head holder in the second embodiment of the present invention;

[0019] Figure 6 It is a schematic diagram of the overall structure of the bottom end of the cutter head seat of the present invention.

[0020] Figures 1 to 6 Middle: 1. Pick body; 2. Pick base; 3. Cutter head seat; 4. First connecting hole; 5. Second connecting hole; 6. Third connecting hole; 7. Mounting groove; 8. Sealing ring; 9. Connecting groove; 10. Straight spray hole; 11. Side spray hole; 12. Fixing groove; 13. Slide groove; 14. Positioning piece; 15. Extraction groove; 16. Cutter head; 17. Retaining ring groove; 18. Connecting hole; 19. Jet hole; 20. First mounting seat; 21. Second mounting seat. DETAILED DESCRIPTION

[0021] Example 1: Figures 1 to 4 The new type of coal mining pick shown in the figure includes a pick body 1, a pick base 2 and a cutter head seat 3. The pick body 1 is fixedly connected to the pick base 2. The top of the pick body 1 is provided with a connecting groove 9, and the inner wall of the connecting groove 9 is fixedly connected to the cutter head seat 3. A second connecting hole 5 is provided on one side of the interior of the pick body 1, and a first connecting hole 4 is provided on the other side of the pick body 1. A third connecting hole 6 is provided at the bottom end of the inner wall of the connecting groove 9. The second connecting hole 5 is connected to the first connecting hole 4 through the third connecting hole 6. A straight spray hole 10 is provided on the outer side of the inner wall of the connecting groove 9, and a side spray hole 11 is provided on the outer side of the top of the pick body 1. The side spray hole 11 is connected in the same way as the straight spray hole 10. A jet hole 19 is provided on the outer side of the bottom end of the cutter head seat 3, and a fixing groove 12 is provided inside the cutter head seat 3. A cutter head 16 is placed on the inner wall of the groove 12, and both ends of the cutter head 16 are set to the same structure. When in use, the pick base 2 is fixedly connected, and the sealing ring 8 at the bottom end of the pick base 2 is connected to the external cooling pipe. When in use, the cutter head seat 3 is sleeved with the first mounting seat 20 and installed on the inner wall of the connecting groove 9. The cooling water of the external cooling pipe is controlled to be continuously input into the inner wall of the first connecting hole 4, and flows out through the inner wall of the second connecting hole 5 through the third connecting hole 6 to form a circulation. In this process, the heat generated by the cutter head seat 3 is taken away, and the cutter head seat 3 and the cutter head 16 are cooled in real time, which effectively prevents the cutter head 16 from generating high temperature and hot melting during use, effectively improving the overall service life of the equipment and ensuring the quality of the equipment.

[0022] When the cutter head 16 is damaged during use, the cutter head 16 can be extracted by removing the cutter head seat 3 and then pulling the positioning member 14 out from the inner wall of the retaining ring groove 17. The cutter head 16 is then inserted into the inner wall of the fixing groove 12 in the reverse direction and the positioning member 14 is pushed to fix the cutter head 16 so that it can continue to be used. By using one thing for two purposes, the utilization rate of the cutter head 16 is effectively increased, the waste of high-strength alloy materials is reduced, and the cost is reduced at the same time. Similarly, when other cutter heads 16 need to be replaced, they can also be replaced and used conveniently.

[0023] Example 2: Figures 1 to 6The bottom ends of the first connecting hole 4 and the second connecting hole 5 shown are both provided with mounting grooves 7, the inner walls of the mounting grooves 7 are fixedly connected with sealing rings 8, the outer wall of the cutter head seat 3 is provided with a slide groove 13, the inner wall of the slide groove 13 is slidably connected with a positioning member 14, the outer wall of the cutter head 16 is provided with a snap ring groove 17, the inner wall of the snap ring groove 17 matches the outer wall of the positioning member 14, the outer wall of the positioning member 14 is provided with a groove 15, the number of positioning members 14 is set to multiple, the bottom end of the cutter head seat 3 is sleeved with any one of the first mounting seat 20 or the second mounting seat 21, and the bottom end of the second mounting seat 21 is provided with a connecting hole 18, The connecting hole 18 is connected to the straight spray hole 10 through the jet hole 19. In the use environment of the pick body 1, it is necessary to reduce dust and mist. At this time, the cutter head seat 3 and the second mounting seat 21 are used for socket connection. When in use, the external cooling water pipe injects high-pressure cooling water into the first connecting hole 4 and the second connecting hole 5. The cooling water is sprayed out through the connecting hole 18 and the jet hole 19 through the straight spray hole 10 and the side spray hole 11 to form water mist to effectively absorb and settle the dust and mist generated during work, thereby cooling the entire equipment while absorbing the external dust and mist to reduce the raising of dust.

[0024] In summary, the present invention has the following working principle: when in use, the staff will sleeve the cutter head seat 3 and the first mounting seat 20, install them on the inner wall of the connecting groove 9, and continuously input the cooling water of the external cooling pipe into the inner wall of the first connecting hole 4, and flow out through the third connecting hole 6 and the inner wall of the second connecting hole 5 to form a cycle. In this process, the heat generated by the cutter head seat 3 is taken away, and the cutter head seat 3 and the cutter head 16 are cooled in real time, which effectively prevents the cutter head 16 from generating high temperature and hot melting during use, effectively prolonging the service life of the entire equipment and ensuring the quality of the equipment. In the use environment of the pick body 1, it is necessary to reduce dust and fog. At this time, the cutter head seat 3 and the second mounting seat 21 are sleeved for use. When in use, the external cooling water pipe injects high-pressure cooling water into the first connecting hole 4 and the second connecting hole 5 to cool the cutter head 16. Water is sprayed out through the connecting hole 18 and the jet hole 19 via the straight spray hole 10 and the side spray hole 11, forming a water mist that effectively absorbs and settles the dust mist generated during operation, thereby cooling the entire equipment while absorbing the external dust mist to reduce the raising of dust. When the cutter head 16 is damaged during use, the cutter head seat 3 can be removed at this time, and then the positioning member 14 can be pulled out from the inner wall of the retaining ring groove 17 to extract the cutter head 16, and then the cutter head 16 is reversely inserted into the inner wall of the fixing groove 12, and the positioning member 14 is pushed to fix the cutter head 16, so that it can continue to be used. By using one thing for two purposes, the utilization rate of the cutter head 16 is effectively enhanced, the waste of high-strength alloy materials is reduced, and the cost is reduced at the same time. Similarly, when other cutter heads 16 need to be replaced, it is also convenient to replace and use them, thus completing the overall workflow of the device.

Claims

1. A new type of coal mining pick, comprising a pick body (1), a pick base (2) and a cutter head seat (3), characterized in that: The pick body (1) is fixedly connected to the pick base (2); a connecting groove (9) is provided at the top of the pick body (1); a cutter head seat (3) is fixedly connected to the inner wall of the connecting groove (9); a second connecting hole (5) is provided on one side of the interior of the pick body (1); a first connecting hole (4) is provided on the other side of the pick body (1); a third connecting hole (6) is provided at the bottom end of the inner wall of the connecting groove (9); the second connecting hole (5) is connected to the first connecting hole (4) through the third connecting hole (6). A straight spray hole (10) is provided on the outer side of the inner wall of the connecting groove (9), a side spray hole (11) is provided on the outer side of the top end of the pick body (1), and the side spray hole (11) is connected to the straight spray hole (10). A spray hole (19) is provided on the outer side of the bottom end of the cutter head seat (3), and a fixing groove (12) is provided inside the cutter head seat (3). A cutter head (16) is placed on the inner wall of the fixing groove (12). Both ends of the cutter head (16) are arranged with the same structure. If one end is damaged, the other end is replaced for use. The bottom end of the cutter head seat (3) is sleeved with either the first mounting seat (20) or the second mounting seat (21); the bottom end of the second mounting seat (21) is provided with a connecting hole (18); the connecting hole (18) is connected to the straight spray hole (10) through the spray hole (19).

2. A new type of coal mining pick according to claim 1, characterized in that: The bottom ends of the first connecting hole (4) and the second connecting hole (5) are both provided with mounting grooves (7), and the inner walls of the mounting grooves (7) are both fixedly connected with sealing rings (8).

3. The new type of coal mining pick according to claim 1, characterized in that: The outer wall of the cutter head seat (3) is provided with a sliding groove (13), the inner wall of the sliding groove (13) is slidably connected with a positioning piece (14), and the outer wall of the cutter head (16) is provided with a snap ring groove (17).

4. A new type of coal mining pick according to claim 3, characterized in that: The inner wall of the snap ring groove (17) matches the outer wall of the positioning member (14), the outer wall of the positioning member (14) is provided with a draw groove (15), and the number of the positioning members (14) is set to be multiple.

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