Fixing device for cutting motor of coal mining machine
By designing the fixing device of the cutting motor of the coal miner and using components such as rubber strips and gears, the problem of cutting motor wear due to vibration is solved, the equipment life is extended, the maintenance cost is reduced, and the working face is improved.
Patent Information
- Application Number
- CN202421337961.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-06-12
AI Technical Summary
During the coal mining machine operation, the cutting motor shakes due to vibration, resulting in spline wear, frequent replacement and high maintenance costs, which affects production safety.
A coal mining machine cutting motor fixing device is designed, including a first fixing mechanism and a second fixing mechanism. The first fixing mechanism realizes stable fixation of the cutting motor through the combination of rubber strips, extrusion strips and sliders; the second fixing mechanism ensures that the limit block of the cutting motor is firmly stuck and prevents reversal and loosening.
It effectively reduces wear caused by vibration of the cutting motor, extends the service life of the equipment, reduces maintenance costs, and improves the safety of the working face.
Smart Images
Figure CN222596057U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fixing devices, in particular to a fixing device for a cutting motor of a coal mining machine. Background Art
[0002] During the mining process of the working face, as the coal mining machine body vibrates during operation, the shaking of the cutting motor can easily cause spline wear. On average, two cutting motors need to be replaced each month. The maintenance cost of the cutting motor is expensive, and replacing and repairing the cutting motor not only affects production, but also involves lifting operations that are labor-intensive and pose a major safety hazard.
[0003] Therefore, a coal mining machine cutting motor fixing device is needed to strengthen the fixation of the cutting motor, reduce the wear of the coal mining machine spline, increase the service life of the cutting motor, reduce maintenance costs, and avoid the safety risks in the frequent replacement of the cutting motor. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a fixing device for a cutting motor of a coal mining machine, which solves the problems raised by the above-mentioned background technology.
[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a coal mining machine cutting motor fixing device includes a coal mining machine rocker arm, a mounting groove is provided on the front surface of the coal mining machine rocker arm, a plurality of mounting holes are provided on the inner rear surface of the mounting groove, movable grooves are provided on the left and right sides of the inner part of the mounting groove, a sliding groove is provided on the inner or outer surface of the mounting groove, the rear end of the sliding groove is connected to the front end of the movable groove, a first fixing mechanism is provided inside the movable groove, the first fixing mechanism includes a rubber strip, an extrusion strip and a sliding strip, a second fixing mechanism is provided on the upper and lower parts of the coal mining machine rocker arm, and the second fixing mechanism includes two screws, three gears, a rotating rod, a hexagonal block and a fixed shell.
[0006] Preferably, the rubber strip is located inside the movable groove, the two ends of the two rubber strips are fixedly connected to the opposite sides of the inside of the two movable grooves respectively, the extrusion strip is located in front of the rubber strip, the outer wall of the slide bar is slidably connected to the inner wall of the slide groove, the rear end of the slide bar is fixedly connected to the front surface of the extrusion strip, the rear surface of the extrusion strip is provided with a circular groove, and a first spring is fixed inside the circular groove.
[0007] Preferably, the gear is located inside the fixed shell, the top and bottom of the gear are fixedly connected to the upper and lower surfaces inside the fixed shell respectively, the inner walls of the left and right gears are fixedly connected to the outer walls of the screw rod, and the inner wall of the middle gear is fixedly connected to the outer wall of the rotating rod.
[0008] Preferably, one end of the screw rod close to the coal mining machine rocker arm passes through the fixed shell, the end of the rotating rod away from the fixed shell passes through the fixed shell, and is fixedly connected to one end of the hexagonal block close to the coal mining machine rocker arm, the middle gear is meshed with the gears on the left and right sides, and two threaded holes are provided on the top and bottom of the coal mining machine rocker arm.
[0009] Preferably, the screw rod and the inner side wall of the threaded hole are threadedly connected, a first gear ring is fixed to the end of the fixed shell away from the coal mining machine rocker arm, a moving cylinder is sleeved on the outer side of the hexagonal block, a second gear ring is fixed to the inner side wall of the moving cylinder, and the second gear ring is meshingly connected with the first gear ring.
[0010] Preferably, the inner wall of the movable cylinder is provided with two receiving holes, a second spring is fixed inside the receiving hole, a clamping block is fixed to the other end of the second spring, a clamping hole is provided on the outer wall of the hexagonal block, a swivel is rotatably connected to the outer wall of the movable cylinder, a ring is provided on the inner wall of the swivel, a pull rope is fixed to one end of the clamping block close to the second spring, and the other end of the pull rope passes through the hexagonal block and is fixedly connected to the inner wall of the ring groove.
[0011] The utility model provides a fixing device for cutting motor of coal mining machine. Compared with the prior art, it has the following advantages:
[0012] Beneficial effects:
[0013] 1. The cutting motor fixing device for the coal mining machine is provided with a first fixing mechanism. When the cutting motor is installed through the mounting hole, the cutting motor is close to the mounting groove and then squeezes the sliding bar. The sliding bar pushes the squeezing bar to move. The squeezing bar squeezes the rubber strip. The rubber strip moves and squeezes the limit block of the cutting motor. In this way, the cutting motor can be clamped. The rubber strip has good elasticity and shock absorption performance, which can reduce the impact of vibration on the cutting motor.
[0014] 2. The cutting motor fixing device of the coal mining machine is provided with a second fixing mechanism, and the rotating ring is rotated. The rotating ring pulls the pull rope, and the pull rope pulls the clamping block to move. Then the moving cylinder is removed to connect the screw and the threaded hole. Then a wrench is used to rotate the hexagonal block. The hexagonal block rotates with the rotating rod, and the rotating rod rotates with the middle gear. The middle gear rotates with the gears on both sides. The gears on both sides rotate with the screw. The screw and the threaded hole are screwed together. The screw moves to jam the limit block of the cutting motor. After the rotation is completed, the moving cylinder is inserted into the hexagonal block, so that the second gear ring and the first gear ring are meshed and connected, and the clamping block is clamped into the clamping hole. This limits the rotation of the hexagonal block and prevents the screw from reversing and loosening. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2For this utility model Figure 1 The structural diagram at A in the middle;
[0017] Figure 3 This is a structural schematic diagram of the rocker arm of the coal mining machine in the utility model;
[0018] Figure 4 It is a schematic diagram of the structure of the sliding strip, the extrusion strip and the rubber strip in the utility model;
[0019] Figure 5 It is a side view structural schematic diagram of the sliding strip, the extrusion strip and the rubber strip in the utility model;
[0020] Figure 6 It is a schematic cross-sectional structure diagram of the fixed shell in the utility model;
[0021] Figure 7 It is a cross-sectional structural schematic diagram of the hexagonal block, rotating block, moving cylinder and rotating ring in the utility model;
[0022] Figure 8 For this utility model Figure 7 Schematic diagram of the structure at B in the figure.
[0023] In the figure: 1. coal mining machine rocker arm; 2. moving cylinder; 3. ring groove; 4. mounting groove; 5. second fixing mechanism; 6. first fixing mechanism; 7. mounting hole; 8. slide groove; 9. movable groove; 10. threaded hole; 11. slide bar; 12. extrusion bar; 13. rubber strip; 14. first spring; 15. circular groove; 16. screw rod; 17. gear; 18. fixed shell; 19. first gear ring; 20. second gear ring; 21. hexagonal block; 22. rotating rod; 23. rotating ring; 24. clamping hole; 25. clamping block; 26. second spring; 27. pull rope; 28. storage hole. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] See also Figure 1-8The utility model provides a technical solution: a coal mining machine cutting motor fixing device includes a coal mining machine rocker arm 1, a mounting groove 4 is provided on the front surface of the coal mining machine rocker arm 1, a plurality of mounting holes 7 are provided on the inner rear surface of the mounting groove 4, movable grooves 9 are provided on both the left and right sides of the inner part of the mounting groove 4, a slide groove 8 is provided on the inner or European surface of the mounting groove 4, the rear end of the slide groove 8 is connected to the front end of the movable groove 9, a first fixing mechanism 6 is provided inside the movable groove 9, the first fixing mechanism 6 includes a rubber strip 13, an extrusion strip 12 and a slide strip 11, a second fixing mechanism 5 is provided on the upper and lower parts of the coal mining machine rocker arm 1, the second fixing mechanism 5 includes two screws 16, three gears 17, a rotating rod 22, a hexagonal block 21 and a fixing shell 18, the rubber strip 13 is located inside the movable groove 9, and the two The two ends of the rubber strip 13 are respectively fixedly connected to the back sides of the two movable grooves 9, the extrusion strip 12 is located in front of the rubber strip 13, the outer wall of the slide bar 11 is slidably connected to the inner wall of the slide groove 8, the rear end of the slide bar 11 is fixedly connected to the front surface of the extrusion strip 12, and a circular groove 15 is provided on the rear surface of the extrusion strip 12, and a first spring 14 is fixed inside the circular groove 15. When the cutting motor is installed through the mounting hole 7, the cutting motor is close to the mounting groove 4 and then squeezes the slide bar 11. The slide bar 11 pushes the extrusion strip 12 to move, and the extrusion strip 12 squeezes the rubber strip 13. The rubber strip 13 moves and squeezes the limit block of the cutting motor, so that the cutting motor can be clamped. The rubber strip 13 has good elasticity and shock absorption performance, which can reduce the impact of vibration on the cutting motor.
[0026] Furthermore, the gear 17 is located inside the fixed shell 18, the top and bottom of the gear 17 are fixedly connected to the upper and lower surfaces inside the fixed shell 18 respectively, the inner wall of the left and right gears 17 is fixedly connected to the outer wall of the screw 16, the inner wall of the middle gear 17 is fixedly connected to the outer wall of the rotating rod 22, the end of the screw 16 close to the coal mining machine rocker arm 1 passes through the fixed shell 18, the end of the rotating rod 22 away from the fixed shell 18 passes through the fixed shell 18, and is fixedly connected to the end of the hexagonal block 21 close to the coal mining machine rocker arm 1, and the middle gear 17 is fixedly connected to the inner wall of the left and right gears 17. The left and right side gears 17 are meshed and connected. Two threaded holes 10 are provided at the top and bottom of the coal mining machine rocker arm 1. The screw 16 is screwed to the inner wall of the threaded hole 10. A first gear ring 19 is fixed to the end of the fixed shell 18 away from the coal mining machine rocker arm 1. A moving cylinder 2 is sleeved on the outer side of the hexagonal block 21. A second gear ring 20 is fixed to the inner wall of the moving cylinder 2. The second gear ring 20 is meshed and connected to the first gear ring 19. Two receiving holes 28 are provided on the inner wall of the moving cylinder 2. A second spring 26 is fixed inside the receiving hole 28. The second spring The other end of 26 is fixed with a block 25, the outer wall of the hexagonal block 21 is provided with a card hole 24, the outer wall of the moving cylinder 2 is rotatably connected with a rotating ring 23, the inner wall of the rotating ring 23 is provided with an annular groove 3, the end of the block 25 close to the second spring 26 is fixed with a pull rope 27, the other end of the pull rope 27 passes through the hexagonal block 21 and is fixedly connected with the inner wall of the annular groove 3, the rotating ring 23 is rotated, the rotating ring 23 pulls the pull rope 27, the pull rope 27 pulls the block 25 to move, then remove the moving cylinder 2, make the screw 16 and the threaded hole 10 dock, then use a wrench Turn the hexagonal block 21 by hand, the hexagonal block 21 rotates with the rotating rod 22, the rotating rod 22 rotates with the middle gear 17, the middle gear 17 rotates with the gears 17 on both sides, the gears 17 on both sides rotate with the screw 16, the screw 16 is threadedly connected with the threaded hole 10, the screw 16 moves to jam the limit block of the cutting motor, and after the rotation is completed, the mobile cylinder 2 is inserted into the hexagonal block 21, so that the second gear ring 20 and the first gear ring 19 are meshed and connected, and the clamping block 25 is clamped into the clamping hole 24, so as to limit the rotation of the hexagonal block 21 and prevent the screw 16 from reversing and loosening.
[0027] During operation, when the cutting motor is installed through the mounting hole 7, the cutting motor is close to the mounting groove 4, and then the sliding bar 11 is squeezed, the sliding bar 11 pushes the squeezing bar 12 to move, the squeezing bar 12 squeezes the rubber strip 13, and the rubber strip 13 moves to squeeze the limit block of the cutting motor, so that the cutting motor can be clamped, and the rubber strip 13 has good elasticity and shock absorption performance, which can reduce the impact of vibration on the cutting motor, and the rotating ring 23 is rotated, the rotating ring 23 pulls the pull rope 27, and the pull rope 27 pulls the block 25 to move, and then the moving cylinder 2 is removed, so that the screw 16 and the threaded hole 10 Docking, then use a wrench to rotate the hexagonal block 21, the hexagonal block 21 rotates with the rotating rod 22, the rotating rod 22 rotates with the middle gear 17, the middle gear 17 rotates with the gears 17 on both sides, the gears 17 on both sides rotate with the screw 16, the screw 16 is threaded with the threaded hole 10, the screw 16 moves to jam the limit block of the cutting motor, after the rotation is completed, the mobile cylinder 2 is inserted into the hexagonal block 21, the second gear ring 20 and the first gear ring 19 are meshed and connected, the clamping block 25 is clamped into the clamping hole 24, thus limiting the rotation of the hexagonal block 21 and preventing the screw 16 from reversing and loosening.
[0028] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".
[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A coal mining machine cutting motor fixing device, comprising a coal mining machine rocker arm (1), characterized in that: The front surface of the coal mining machine rocker arm (1) is provided with a mounting groove (4), the inner rear surface of the mounting groove (4) is provided with a plurality of mounting holes (7), the inner left and right sides of the mounting groove (4) are provided with movable grooves (9), the inner or outer surface of the mounting groove (4) is provided with a slide groove (8), the rear end of the slide groove (8) is connected with the front end of the movable groove (9), the movable groove (9) is provided with a first fixing mechanism (6), the first fixing mechanism (6) comprises a rubber strip (13), an extrusion strip (12) and a slide strip (11), the upper and lower parts of the coal mining machine rocker arm (1) are provided with second fixing mechanisms (5), the second fixing mechanism (5) comprises two screw rods (16), three gears (17), a rotating rod (22), a hexagonal block (21) and a fixing shell (18).
2. The coal mining machine cutting motor fixing device according to claim 1 is characterized in that: The rubber strip (13) is located inside the movable groove (9), and the two ends of the two rubber strips (13) are fixedly connected to the opposite sides of the inside of the two movable grooves (9), respectively. The extrusion strip (12) is located in front of the rubber strip (13), the outer wall of the slide bar (11) and the inner wall of the slide groove (8) are slidably connected, the rear end of the slide bar (11) and the front surface of the extrusion strip (12) are fixedly connected, and a circular groove (15) is opened on the rear surface of the extrusion strip (12), and a first spring (14) is fixed inside the circular groove (15).
3. The coal mining machine cutting motor fixing device according to claim 2 is characterized in that: The gear (17) is located inside the fixed shell (18); the top and bottom of the gear (17) are fixedly connected to the upper and lower surfaces inside the fixed shell (18) respectively; the inner side walls of the left and right gears (17) are fixedly connected to the outer side walls of the screw rod (16); and the inner side wall of the middle gear (17) is fixedly connected to the outer side wall of the rotating rod (22).
4. The coal mining machine cutting motor fixing device according to claim 3 is characterized in that: The end of the screw rod (16) close to the coal mining machine rocker arm (1) passes through the fixed shell (18), the end of the rotating rod (22) away from the fixed shell (18) passes through the fixed shell (18) and is fixedly connected to the end of the hexagonal block (21) close to the coal mining machine rocker arm (1), the gear (17) in the middle is meshed with the gears (17) on the left and right sides, and two threaded holes (10) are provided on the top and bottom of the coal mining machine rocker arm (1).
5. The coal mining machine cutting motor fixing device according to claim 4 is characterized in that: The screw rod (16) and the inner side wall of the threaded hole (10) are threadedly connected, a first gear ring (19) is fixed to one end of the fixed shell (18) away from the coal mining machine rocker arm (1), a moving cylinder (2) is sleeved on the outer side of the hexagonal block (21), a second gear ring (20) is fixed to the inner side wall of the moving cylinder (2), and the second gear ring (20) is meshingly connected with the first gear ring (19).
6. The coal mining machine cutting motor fixing device according to claim 5, characterized in that: The inner wall of the movable cylinder (2) is provided with two receiving holes (28), a second spring (26) is fixed inside the receiving hole (28), a clamping block (25) is fixed at the other end of the second spring (26), a clamping hole (24) is provided on the outer wall of the hexagonal block (21), a rotating ring (23) is rotatably connected to the outer wall of the movable cylinder (2), an annular groove (3) is provided on the inner wall of the rotating ring (23), a pull rope (27) is fixed at one end of the clamping block (25) close to the second spring (26), and the other end of the pull rope (27) passes through the hexagonal block (21) and is fixedly connected to the inner wall of the annular groove (3).