Cutting pick self-cooling protection device of coal mining machine for coal mine

Abstract

The utility model discloses a coal mining machine cutting pick self-cooling protection device which comprises a cutting pick body, a fan heat dissipation mechanism, a quick clamping mechanism and a clamping auxiliary mechanism, and the fan heat dissipation mechanism comprises a heat dissipation box, a heat dissipation fan, a heat dissipation pipe, a matching plate and a mounting frame. The clamping auxiliary mechanism comprises a clamping pipe, a clamping rod, a fixed sleeve, a supporting spring, a movable rod, a push block, a rotating sleeve and a ball groove, and the rapid clamping mechanism comprises a directional sleeve, a moving lock frame, a lateral block, a moving groove, a lateral groove and a clamping groove. According to the cutting pick, heat generated in the cutting process of the cutting pick body can be effectively dissipated out, the performance and the service life of the cutting pick are prevented from being affected by overheating, stable mounting and dismounting of a fan heat dissipation mechanism are achieved, and rapid and stable clamping can be achieved through the design of a directional sleeve, a moving lock frame, a lateral block, a moving groove and a clamping groove.

Description

Technical Field

[0001] The utility model relates to the technical field of self-cooling, and more specifically, it relates to a self-cooling protection device for the pick of a coal mining shearer. Background Technique

[0002] The self-cooling protection device for the pick of a coal mining shearer is a device specifically designed for the cooling and protection of the pick of a coal mining shearer. During the coal mining process, the pick will generate high temperature due to high-speed cutting of coal and rock, which may lead to wear and damage of the pick. The self-cooling protection device effectively reduces the temperature of the pick by providing coolant or cooling gas, prolongs its service life, and improves the coal mining efficiency.

[0003] In the existing technology, firstly, the heat generated by the pick body during the cutting process of some devices cannot be effectively dissipated, which may cause the pick to overheat and affect its performance and service life. The heat dissipation mechanism may occupy too much space and is not suitable for use in a narrow coal mining environment. Secondly, the fixation of some components of some devices may not be firm enough, which may cause displacement or inclination during the cutting process, and the fixation and adjustment process will become more complicated, increasing the operation difficulty and time. Finally, the support of the connecting components of some devices may not be stable enough, which may cause shaking or vibration during the cutting process, making the position and angle more difficult and affecting the cutting effect. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the problems existing in the prior art, the utility model provides a self-cooling protection device for the pick of a coal mining shearer to solve the technical problems mentioned in the background technique, such as the heat generated by the pick body during the cutting process cannot be effectively dissipated, and the fixation of some components may not be firm enough.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the present utility model provides the following technical solution: a self-cooling protection device for a pick of a coal mining shearer, which includes a pick body, a fan heat dissipation mechanism, a quick clamping mechanism, and a clamping auxiliary mechanism. The fan heat dissipation mechanism includes a heat dissipation box, a heat dissipation fan, a heat dissipation pipe, a mating plate, and a mounting bracket. The heat dissipation fan is installed in the heat dissipation box, the heat dissipation pipe is installed on the side of the heat dissipation box, the mating plate is installed in cooperation with the output end of the heat dissipation fan, and the bottom of the mating plate is connected to the mounting bracket in cooperation. The clamping auxiliary mechanism includes a clamping pipe, a clamping rod, a fixed sleeve, a support spring, a movable rod, a push block, a rotating sleeve, and a ball groove. The clamping rod can extend into the clamping pipe. The fixed sleeve is fixedly installed at the top end of the side wall of the clamping pipe. A plurality of groups of movable rods are longitudinally movably installed on the fixed sleeve in a circular manner. The push block is installed at one end of the movable rod, and the support spring is installed between the push block and the fixed sleeve. The rotating sleeve is rotatably arranged on the outer wall of the clamping pipe. A plurality of groups of ball grooves are arranged at the top end of the rotating sleeve. The push block can be gradually extended into the ball groove to be rotatably supported in cooperation.

[0008] The present utility model is further arranged such that the quick clamping mechanism includes an orientation sleeve, a movement lock frame, a lateral block, a movement groove, a lateral groove, and a clamping groove. The orientation sleeve is longitudinally movably arranged on the side wall of the clamping pipe. The movement lock frame is horizontally and movably arranged through the side wall of the clamping pipe. The clamping groove is arranged on the side of the clamping rod. The movement lock frame can extend into the clamping groove to fix the clamping rod in the clamping pipe. The movement groove is arranged on the inner wall of the orientation sleeve. The lateral grooves are arranged on both sides of the movement groove. The lateral blocks are symmetrically arranged on both sides of the movement lock frame. The movement lock frame moves relative to each other in the movement groove, and the lateral blocks extend into the lateral grooves to be guided in cooperation.

[0009] The present utility model is further arranged such that a mating rod is installed at one end of the clamping rod, and a stable groove is installed at the top end inside the clamping pipe. The mating rod can extend into the stable groove to make the clamping rod stable in the clamping pipe. The setting of the mating rod facilitates the stable installation of the clamping rod in the clamping pipe.

[0010] The present utility model is further arranged such that a rotating top block is installed at the bottom of the rotating sleeve, and a pushed slope block is installed at the top of the orientation sleeve. The rotating top block can push the pushed slope block to move the orientation sleeve downward.

[0011] The present utility model is further arranged such that a connecting plate is installed at the bottom end of the side wall of the clamping pipe, and a recovery spring is installed at the top of the connecting plate. The top end of the recovery spring is connected to the bottom end of the orientation sleeve in cooperation. The setting of the connecting plate facilitates the fixed installation of the clamping pipe.

[0012] The present utility model is further arranged such that a braking component is provided in cooperation with the top end face of the pick body. The mounting bracket is installed on the side of the braking component through the quick clamping mechanism. The connecting plate on the side wall of the clamping pipe is fixedly installed on the mounting bracket. The setting of the braking component facilitates the control of the braking of the gear component.

[0013] The present utility model is further configured such that one end of the clamping rod is cooperatively installed on the braking assembly, and one end of the clamping rod extends through the mounting frame and is cooperatively and quickly clamped with the clamping pipe. The arrangements of the clamping rod and the clamping pipe facilitate the installation and fixation of some components.

[0014] The present utility model is further configured such that an installation sleeve is installed on the side surface of the pick body, a cutting shaft is connected to the installation sleeve, and the cutting shaft is cooperatively connected with an external cutting drive mechanism. The arrangement of the cutting shaft facilitates the connection of an external drive mechanism and the control of the device.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present utility model provides a self-cooling protection device for a pick of a coal mining shearer, having the following beneficial effects:

[0017] The present utility model is provided with a fan heat dissipation mechanism. The combined design of the heat dissipation box and the heat dissipation fan can effectively dissipate the heat generated by the pick body during the cutting process, preventing overheating from affecting the performance and service life of the pick. The designs of the matching plate and the mounting frame enable the heat dissipation mechanism to be compactly installed on the pick without occupying too much space, facilitating its use in a narrow coal mining environment.

[0018] The present utility model is provided with a quick clamping mechanism to achieve the stable installation and disassembly of the fan heat dissipation mechanism. The designs of the orientation sleeve, the movement locking frame, the lateral block, the movement groove, and the card slot can achieve quick and stable clamping, improving the operation efficiency of the device. The design of the lateral block extending into the lateral groove ensures the correct guiding of the movement locking frame in the movement groove, improving the accuracy of clamping.

[0019] The present utility model is provided with a clamping auxiliary mechanism. The arrangements of the movable rod, the push block, the support spring, and the rotating sleeve provide stable support, ensuring the smoothness and reliability of the clamping process. The designs of the rotating sleeve and the ball groove enable the push block to gradually extend into the ball groove, achieving precise adjustment of the position of the clamping rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the whole device of the present utility model in the unused state;

[0021] Figure 2 is a schematic structural diagram of the whole device of the present utility model from the side view;

[0022] Figure 3 is a schematic structural diagram of the braking assembly and part of the heat dissipation and ventilation mechanism of the present utility model;

[0023] Figure 4 is a schematic structural diagram of the quick clamping mechanism and the clamping auxiliary mechanism of the present utility model;

[0024] Figure 5 This is a schematic diagram of the internal structures of the quick clamping mechanism and the clamping assistance mechanism in the present utility model.

[0025] In the figure: 1, pick body; 2, heat dissipation box; 3, heat dissipation fan; 4, heat dissipation pipe; 5, mating plate; 6, mounting bracket; 7, clamping pipe; 8, clamping rod; 9, fixed sleeve; 10, support spring; 11, movable rod; 12, push block; 13, rotating sleeve; 14, ball groove; 15, orientation sleeve; 16, movement lock frame; 17, lateral block; 18, movement groove; 19, lateral groove; 20, clamping groove; 21, mating rod; 22, stable groove; 23, rotating top block; 24, pushed slope block; 25, connecting plate; 26, restoring spring; 27, braking assembly; 28, mounting sleeve; 29, cutting shaft. Detailed implementation manners

[0026] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] It should be pointed out that, unless otherwise specified, all the technical and scientific terms used in the present application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0028] In the present utility model, unless otherwise stated, the orientations such as "upper, lower" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for ease of understanding and description, "left, right" are usually in the left and right shown in the drawings; "inside, outside" refer to the inside and outside relative to the contours of the respective components, but the above orientation terms are not used to limit the present utility model.

[0029] Please refer to Figures 1-5, a self-cooling protection device for a pick of a coal mining shearer, comprising a pick body 1, a fan heat dissipation mechanism, a quick clamping mechanism and a clamping auxiliary mechanism. The fan heat dissipation mechanism includes a heat dissipation box 2, a heat dissipation fan 3, a heat dissipation pipe 4, a matching plate 5 and a mounting frame 6. The heat dissipation fan 3 is installed in the heat dissipation box 2, the heat dissipation pipe 4 is installed on the side of the heat dissipation box 2, the matching plate 5 is cooperatively installed at the output end of the heat dissipation fan 3, and the bottom of the matching plate 5 is cooperatively connected with the mounting frame 6. The clamping auxiliary mechanism includes a clamping pipe 7, a clamping rod 8, a fixing sleeve 9, a support spring 10, a movable rod 11, a push block 12, a rotating sleeve 13 and a ball groove 14. The clamping rod 8 can extend into the clamping pipe 7. The fixing sleeve 9 is fixedly installed at the top of the side wall of the clamping pipe 7. A plurality of groups of movable rods 11 are annularly and longitudinally movably installed on the fixing sleeve 9. The push block 12 is installed at one end of the movable rod 11, and the support spring 10 is installed between the push block 12 and the fixing sleeve 9. The rotating sleeve 13 is rotatably arranged on the outer wall of the clamping pipe 7. A plurality of groups of ball grooves 14 are arranged at the top of the rotating sleeve 13. The push block 12 can be gradually extended into the ball groove 14 for cooperative rotation and support setting.

[0030] In this embodiment, the heat dissipation fan 3 is installed in the heat dissipation box 2. When the shearer works, the fan starts to operate, generating a cooling air flow. The heat dissipation pipe 4 is installed on the side of the heat dissipation box 2. The cooling air flow passes through the heat dissipation pipe 4 to take away the heat generated by the pick body 1. The matching plate 5 is cooperatively installed at the output end of the heat dissipation fan 3 and is connected to the mounting frame 6 at the bottom to ensure the stable operation of the fan and the heat dissipation efficiency. A plurality of groups of movable rods 11 are annularly and longitudinally movably installed on the fixing sleeve 9. The push block 12 is installed at one end of the movable rod 11, and the support spring 10 is installed between the push block 12 and the fixing sleeve 9 to provide elastic support. Rotate the rotating sleeve 13. At this time, the support spring supports and pushes the push block 12 to be gradually extended into the ball groove 14 for cooperative rotation and support setting, realizing the stable rotation of the rotating sleeve 13, and further using the rotating top block 23 and the pushed slope block 24 to realize the motion control of the orientation sleeve 15.

[0031] The quick clamping mechanism includes an orientation sleeve 15, a motion locking frame 16, a lateral block 17, a motion groove 18, a lateral groove 19 and a clamping groove 20. The orientation sleeve 15 is longitudinally movably arranged on the side wall of the clamping pipe 7. The motion locking frame 16 is horizontally and movably arranged through the side wall of the clamping pipe 7. The clamping groove 20 is arranged on the side of the clamping rod 8. The motion locking frame 16 can extend into the clamping groove 20 to fix the clamping rod 8 in the clamping pipe 7. The motion groove 18 is arranged on the inner wall of the orientation sleeve 15. The lateral groove 19 is arranged on both sides of the motion groove 18. The lateral blocks 17 are symmetrically arranged on both sides of the motion locking frame 16. The motion locking frame 16 moves relatively in the motion groove 18, and the lateral blocks 17 extend into the lateral groove 19 for cooperative guiding setting.

[0032] In this embodiment, to achieve the quick installation and disassembly of the fan cooling mechanism on the side of the device, the clamping rod 8 can extend into the inside of the clamping pipe 7. The clamping groove 20 is arranged on the side of the clamping rod 8. By controlling the downward movement of the orientation sleeve 15 through the clamping assistance mechanism, while the orientation sleeve 15 is moving, the moving lock frame 16 is driven by the lateral block 17 to move relatively in the movement groove 18. At this time, the moving lock frame 16 can extend into the clamping groove 20 to fix the clamping rod 8 inside the clamping pipe 7, realizing the quick fixation and release of the clamping rod 8.

[0033] Please refer to Figures 1-5 , as a supplementary implementation method of a self-cooling protection device for the pick of a coal shearer for the fan cooling mechanism, the quick clamping mechanism and the clamping assistance mechanism: A matching rod 21 is installed at one end of the clamping rod 8, and a stable groove 22 is installed at the inner top end of the clamping pipe 7. The matching rod 21 can extend into the stable groove 22 to make the clamping rod 8 stable inside the clamping pipe 7. A rotating top block 23 is installed at the bottom of the rotating sleeve 13, and a pushed slope block 24 is installed at the top of the orientation sleeve 15. The rotating top block 23 can push the pushed slope block to move the orientation sleeve 15 downward. A connecting plate 25 is installed at the bottom end of the side wall of the clamping pipe 7, and a restoring spring 26 is installed at the top of the connecting plate 25. The top end of the restoring spring 26 is cooperatively connected with the bottom end of the orientation sleeve 15. A braking component 27 is cooperatively arranged on the top end face of the pick body 1. The mounting bracket 6 is installed on the side of the braking component 27 through the quick clamping mechanism. The connecting plate 25 on the side wall of the clamping pipe 7 is fixedly installed on the mounting bracket 6. One end of the clamping rod 8 is cooperatively installed on the braking component 27, and one end of the clamping rod 8 extends through the mounting bracket 6 and is cooperatively and quickly clamped with the clamping pipe 7. An installation sleeve 28 is installed on the side of the pick body 1, and a cutting shaft 29 is connected to the installation sleeve 28. The cutting shaft 29 is cooperatively connected with an external cutting driving mechanism.

[0034] More specifically, when the pick body 1 of the coal shearer is working, the fan cooling mechanism starts to operate. Through the cooling fan 3, the cooling pipe 4 and the matching plate 5, the heat is dissipated to keep the temperature of the pick body 1 within a safe range. The quick clamping mechanism and the clamping assistance mechanism work together to fix the pick body 1 on the mounting bracket 6 through the clamping rod 8. At the same time, the position of the clamping rod 8 can be adjusted as needed. A braking component 27 is arranged on the top end face of the pick body 1, and the mounting bracket 6 is installed on the side of the braking component 27 through the quick clamping mechanism. An installation sleeve 28 is installed on the side of the pick body 1, and a cutting shaft 29 is connected. The cutting shaft 29 is cooperatively connected with an external cutting driving mechanism to realize the braking and cutting actions of the pick. Through heat dissipation and fixation adjustment, the whole device realizes the self-cooling protection of the pick, improving the service life of the pick and the coal mining efficiency.

[0035] In summary, when the overall device is in use or operation: when the operation of the fan heat dissipation mechanism is required, the heat dissipation fan 3 is installed in the heat dissipation box 2. When the roadheader works, the fan starts to rotate, generating a cooling air flow. The heat dissipation pipe 4 is installed on the side of the heat dissipation box 2. The cooling air flow passes through the heat dissipation pipe 4, taking away the heat generated by the pick body 1. The matching plate 5 is installed at the output end of the heat dissipation fan 3 and is connected to the mounting bracket 6 at the bottom to ensure the stable operation of the fan and the heat dissipation efficiency.

[0036] When the operation of the quick clamping mechanism is required, to achieve the quick installation and disassembly of the fan heat dissipation mechanism on the side of the device, the clamping rod 8 can extend into the clamping pipe 7. The clamping groove 20 is arranged on the side of the clamping rod 8. By controlling the downward movement of the orientation sleeve 15 through the clamping auxiliary mechanism, while the orientation sleeve 15 is moving, the moving lock frame 16 is driven by the lateral block 17 to move relatively in the movement groove 18. At this time, the moving lock frame 16 can extend into the clamping groove 20 to fix the clamping rod 8 in the clamping pipe 7, realizing the quick fixing and release of the clamping rod 8.

[0037] When the operation of the clamping auxiliary mechanism is required, multiple groups of movable rods 11 are annularly and longitudinally movably installed on the fixed sleeve 9. The push block 12 is installed at one end of the movable rod 11. The support spring 10 is installed between the push block 12 and the fixed sleeve 9 to provide elastic support. Rotate the rotating sleeve 13. At this time, the support spring supports and pushes the push block 12 to gradually extend into the ball groove 14 for rotational support cooperation, realizing the stable rotation of the rotating sleeve 13. Furthermore, by using the rotating top block 23 and the pushed slope block 24, the movement control of the orientation sleeve 15 is realized.

[0038] When the pick body 1 of the roadheader works, the fan heat dissipation mechanism starts to operate. Through the heat dissipation fan 3, the heat dissipation pipe 4 and the matching plate 5, the heat is dissipated, keeping the temperature of the pick body 1 within the safe range. The quick clamping mechanism and the clamping auxiliary mechanism work together to fix the pick body 1 on the mounting bracket 6 through the clamping rod 8. At the same time, the position of the clamping rod 8 can be adjusted as needed. A braking component 27 is arranged on the top end face of the pick body 1, and the mounting bracket 6 is installed on the side of the braking component 27 through the quick clamping mechanism. An installation sleeve 28 is installed on the side of the pick body 1 and is connected to a cutting shaft 29. The cutting shaft 29 is connected to the external cutting drive mechanism in a matching manner to realize the braking and cutting actions of the pick. Through heat dissipation and fixation adjustment, the whole device realizes the self-cooling protection of the pick, improving the service life of the pick and the coal mining efficiency.

[0039] Among all the solutions mentioned above, for those involving the connection between two components, welding, the connection with bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those involving fixed connection mentioned above, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-cooling protection device for a coal mining machine pick, comprising a pick body (1), a fan heat dissipation mechanism, a quick clamping mechanism and a clamping auxiliary mechanism, wherein: The fan heat dissipation mechanism comprises a heat dissipation box (2), a heat dissipation fan (3), a heat dissipation pipe (4), a matching plate (5) and a mounting frame (6); the heat dissipation fan (3) is mounted in the heat dissipation box (2); the heat dissipation pipe (4) is mounted on the side of the heat dissipation box (2); the matching plate (5) is matched and mounted on the output end of the heat dissipation fan (3); and the bottom of the matching plate (5) is matched and connected with the mounting frame (6); the clamping auxiliary mechanism comprises a clamping tube (7), a clamping rod (8), a fixing sleeve (9), a supporting spring (10), a movable rod (11), a push block (12), a rotating sleeve (13) and a ball groove (14), the clamping rod (8) can be extended into the clamping tube (7), the fixing sleeve (9) is fixedly mounted on the top of the side wall of the clamping tube (7), a plurality of groups of movable rods (11) are annularly and longitudinally movably mounted on the fixing sleeve (9), a push block (12) is mounted on one end of the movable rod (11), and a support spring (10) is mounted between the push block (12) and the fixing sleeve (9), a rotating sleeve (13) is rotatably mounted on the outer wall of the clamping tube (7), a plurality of groups of ball grooves (14) are arranged on the top of the rotating sleeve (13), and the push block (12) can be gradually extended into the ball grooves (14) to cooperate with the rotating support arrangement.

2. A coal mining machine pick self-cooling protection device according to claim 1, characterized in that: The quick clamping mechanism comprises an oriented sleeve (15), a moving locking frame (16), a lateral block (17), a moving groove (18), a lateral groove (19) and a clamping groove (20). The oriented sleeve (15) is longitudinally movably arranged on the side wall of the clamping tube (7), the moving locking frame (16) is transversely penetrated and movably arranged on the side wall of the clamping tube (7), the clamping groove (20) is arranged on the side of the clamping rod (8), the moving locking frame (16) can extend into the clamping groove (20) to fix the clamping rod (8) in the clamping tube (7), the moving groove (18) is arranged on the inner wall of the oriented sleeve (15), the lateral groove (19) is arranged on both sides of the moving groove (18), the lateral blocks (17) are symmetrically arranged on both sides of the moving locking frame (16), the moving locking frame (16) moves relatively in the moving groove (18), and the lateral blocks (17) extend into the lateral groove (19) to cooperate with the guiding arrangement.

3. A coal mining machine pick self-cooling protection device according to claim 1, characterized in that: A matching rod (21) is installed at one end of the clamping rod (8), and a stabilizing groove (22) is installed at the inner top end of the clamping tube (7), and the matching rod (21) can extend into the stabilizing groove (22) to stabilize the clamping rod (8) in the clamping tube (7).

4. A coal mining machine pick self-cooling protection device according to claim 1, characterized in that: A rotating top block (23) is installed at the bottom of the rotating sleeve (13), and a pushed slope block (24) is installed at the top of the directional sleeve (15). The rotating top block (23) can push the pushed slope block to move the directional sleeve (15) downward.

5. A coal mining machine pick self-cooling protection device according to claim 1, characterized in that: A connecting plate (25) is installed at the bottom end of the side wall of the clamping tube (7), and a restoring spring (26) is installed at the top of the connecting plate (25), and the top end of the restoring spring (26) is matched and connected with the bottom end of the directional sleeve (15).

6. A coal mining machine pick self-cooling protection device according to claim 1, characterized in that: The top end surface of the pick body (1) is provided with a brake assembly (27), the mounting frame (6) is mounted on the side of the brake assembly (27) through the quick clamping mechanism, and the connecting plate (25) on the side wall of the clamping tube (7) is fixedly mounted on the mounting frame (6).

7. A coal mining machine pick self-cooling protection device according to claim 1, characterized in that: One end of the clamping rod (8) is mounted on the brake assembly (27), and one end of the clamping rod (8) extends through the mounting frame (6) and is quickly clamped with the clamping tube (7).

8. A coal mining machine pick self-cooling protection device according to claim 1, characterized in that: A mounting sleeve (28) is installed on the side of the pick body (1), and a cutting shaft (29) is connected to the mounting sleeve (28), and the cutting shaft (29) is cooperatively connected to an external cutting drive mechanism.

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