Cutting pick throwing-off prevention device of coal mining machine
By using the design of the sliding connection and fastening components of the interceptor gear cutter and anti-sliding device in the coal mining machine, the problem of easy damage to the existing device when encountering hard objects is solved, and the stable fixation of the interceptor wheel is achieved, reducing the Risk of transport aircraft accidents.
Patent Information
- Application Number
- CN202420530722.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-19
AI Technical Summary
The existing anti-sliding device of coal mining machine is prone to damage when encountering hard gangue or geological structures, resulting in serious wear or falling off of the cutter, increasing the risk of transport aircraft accidents.
A coal mining machine gear anti-sliding device is designed, which is slidably connected to the inside of the cutter seat through the cutter wheel, and uses the meshing structure of the gear block and the moving tooth plate and the fastening components (including conical grooves, mounting grooves, telescopic rods) , squeeze springs and tapered limit blocks) to fix the cutter wheel to prevent it from falling off.
It effectively avoids the cutter wheel falling off due to wear during work, reduces the occurrence of transport aircraft accidents, and improves the durability and safety of the device.
Smart Images
Figure CN222162600U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal mining machines, in particular to a pick anti-swinging device for coal mining machines. Background Art
[0002] Coal is the most widely used resource in today's society. Coal mining is usually carried out by coal mining machines. The working environment underground in coal mines is harsh. Coal mining machines are a large and complex system integrating mechanical, electrical and hydraulic systems. Coal mining machines are suitable for thin coal seams with slow slopes in general medium and small mines. They can cut bottom grooves in the coal mining working face of extremely thin composite coal seams to achieve the purpose of cutting grooves and dropping coal. If the coal mining machine fails, it will lead to the interruption of the entire coal mining work, causing huge economic losses.
[0003] The existing anti-swing-off devices are all rigidly connected, and are easily damaged when encountering hard gangue or other geological structures, resulting in severe wear of the pick teeth, and sometimes the pick teeth fall off. In addition, the anti-swing-off device has only one layer of protection, and if it is damaged, it will fall out directly, causing a conveyor accident. For this reason, we provide a coal mining machine pick anti-swing-off device for use. Utility Model Content
[0004] The utility model aims to provide a device for preventing picks from falling off of a coal mining machine, so as to solve the problems raised by the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal mining machine pick anti-swinging device, comprising a cutting wheel seat of the anti-swinging device, the cutting wheel seat is slidably connected to the inside of the cutting wheel seat, a circular groove is provided at the bottom of the cutting wheel, a gear block is connected to a bearing on one side of the circular groove, two groups of movable tooth plates are slidably connected to the inside of the circular groove and the movable tooth plates are meshed with the gear block, the two ends of the two groups of movable tooth plates are respectively slidably connected to the two ends of the inside of the cutting wheel seat, and two groups of fixing components are movably installed inside the circular groove to fix the movable tooth plates.
[0006] Preferably, the two groups of fixing components include a support seat, a movable plate and fixing bolts, the two groups of support seats are respectively annularly installed on the inner wall of the circular groove, one end of the two groups of movable plates are respectively bearing-connected to the inside of the two groups of support seats and the other end of the movable plates are respectively attached to one side of the movable tooth plate, and the two groups of fixing bolts respectively penetrate the two groups of movable plates and are threadedly connected to one side of the movable tooth plate.
[0007] Preferably, there are two sets of fastening components between the inside of the cut-wheel seat and the cut-wheel, and when the cut-wheel is inserted into the inside of the cut-wheel seat, the two sets of fastening components fasten the cut-wheel.
[0008] Preferably, the fastening assembly includes a conical groove, a mounting groove, a telescopic rod, an extrusion spring and a conical limit block, two groups of the conical grooves are respectively opened at the two ends of the cut wheel, two groups of the mounting grooves are respectively opened at the two ends inside the cut wheel seat, two groups of the telescopic rods are respectively connected to one side of the two groups of mounting grooves, two groups of the conical limit blocks are respectively connected to the extended ends of the two groups of telescopic rods and the conical limit blocks are engaged in the inside of the conical groove, and two groups of the extrusion springs are respectively installed between one side of the two groups of mounting grooves and the conical limit blocks to extrude the conical limit blocks.
[0009] Preferably, a cross-shaped groove is provided on one side of the gear block, and a cross-shaped rod is inserted into the cross-shaped groove to drive the gear block to rotate.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] 1. The utility model connects the cutter wheel to the inside of the cutter wheel seat by sliding. When the cutter wheel is located at the bottom of the cutter wheel seat, the gear block connected to the bearing inside the circular groove is rotated, so that the gear block drives the two groups of meshingly connected moving tooth plates to move. The moving tooth plates slide at the bottom of the cutter wheel, and the two groups of moving tooth plates move to the two ends of the inside of the cutter wheel seat respectively, and the moving plate is attached to one side of the moving tooth plate. The fixing bolt passes through one side of the moving plate and the rotating fixing bolt is threadedly connected to the inside of the moving tooth plate to fix the moving tooth plate, so as to prevent the cutter wheel from completely falling off from the cutter wheel seat when it is severely worn during operation, thereby preventing accidents of the conveyor.
[0012] 2. The utility model places the cut-wheel inside the cut-wheel seat, and the cut-wheel slides downward to squeeze the conical limit block connected to one side of the telescopic rod. The conical limit block squeezes the extrusion spring between one side of the installation groove and the conical limit block during movement. As the cut-wheel descends, the conical limit block is pushed into the conical groove provided on the outer side of the cut-wheel due to the inertia of the extrusion spring to reinforce the cut-wheel and reduce the cut-wheel from falling off. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the internal structure of the cut-off wheel seat and the cut-off wheel of the utility model;
[0014] Figure 2 This is a schematic diagram of the cut-wheel seat and the cut-wheel bottom structure of the utility model;
[0015] Figure 3 For this utility model Figure 1 A magnified schematic diagram of point A;
[0016] Figure 4 For this utility model Figure 2 An enlarged schematic diagram of point B.
[0017] In the figure: 1, cut-wheel seat, 2, cut-wheel, 3, conical groove, 4, mounting groove, 5, telescopic rod, 6, extrusion spring, 7, conical limit block, 8, circular groove, 9, gear block, 10, movable gear plate, 11, support seat, 12, movable plate, 13, fixing bolt, 14, cross groove. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0019] See also Figure 1-4 As shown, the utility model is a device for preventing pick teeth from being thrown off of a coal mining machine, comprising a cutting wheel seat 1 of the device, a cutting wheel 2 being slidably connected inside the cutting wheel seat 1, a circular groove 8 being provided at the bottom of the cutting wheel 2, a gear block 9 being connected to a bearing on one side inside the circular groove 8, two groups of moving tooth plates 10 being slidably connected inside the circular groove 8 and the moving tooth plates 10 being meshed with the gear block 9, two ends of the two groups of moving tooth plates 10 being slidably connected to the two ends inside the cutting wheel seat 1 respectively, and two groups of fixing components being movably installed inside the circular groove 8 to fix the moving tooth plates 10.
[0020] In the present embodiment, the cut-wheel 2 is slidably connected to the inside of the cut-wheel seat 1. When the cut-wheel 2 is located at the bottom of the cut-wheel seat 1, the gear block 9 connected to the bearing inside the circular groove 8 is rotated, so that the gear block 9 drives the two groups of meshingly connected moving tooth plates 10 to move, so that the moving tooth plates 10 slide at the bottom of the cut-wheel 2. The two groups of moving tooth plates 10 are respectively moved to the two ends of the inside of the cut-wheel seat 1, and then fixed by the fixing components movably installed inside the circular groove 8.
[0021] See also Figure 4 As shown, the two groups of fixed components include a support seat 11, a movable plate 12 and a fixing bolt 13. The two groups of support seats 11 are respectively annularly installed on the inner wall of the circular groove 8, one end of the two groups of movable plates 12 are respectively bearing-connected to the inside of the two groups of support seats 11 and the other end of the movable plate 12 is respectively attached to one side of the movable tooth plate 10, and the two groups of fixing bolts 13 respectively penetrate the two groups of movable plates 12 and are threadedly connected to one side of the movable tooth plate 10.
[0022] In this embodiment, when the gear block 9 drives the movable tooth plate 10 to move, the movable plate 12 whose bearing is connected to one side of the support seat 11 is fitted to one side of the movable tooth plate 10, and the fixing bolt 13 is passed through one side of the movable plate 12 and the fixing bolt 13 is rotated to fix the movable tooth plate 10.
[0023] See also Figure 1 As shown, there are two sets of fastening components between the inside of the cut-wheel seat 1 and the cut-wheel 2. When the cut-wheel 2 is inserted into the inside of the cut-wheel seat 1, the two sets of fastening components fasten the cut-wheel 2.
[0024] In this embodiment, two sets of fastening components are installed between the cut-wheel seat 1 and the cut-wheel 2 . When the cut-wheel 2 is inserted into the cut-wheel seat 1 , the two sets of fastening components reinforce the cut-wheel 2 .
[0025] See also Figure 3 As shown, the fastening assembly includes a tapered groove 3, a mounting groove 4, a telescopic rod 5, an extrusion spring 6 and a tapered limit block 7. Two groups of tapered grooves 3 are respectively arranged at the two ends of the cutting wheel 2, and two groups of mounting grooves 4 are respectively arranged at the two ends inside the cutting wheel seat 1. Two groups of telescopic rods 5 are respectively connected to one side of the two groups of mounting grooves 4, and two groups of tapered limit blocks 7 are respectively connected to the extended ends of the two groups of telescopic rods 5 and the tapered limit blocks 7 are engaged in the inside of the tapered groove 3. Two groups of extrusion springs 6 are respectively installed between one side of the two groups of mounting grooves 4 and the tapered limit blocks 7 to squeeze the tapered limit blocks 7.
[0026] In this embodiment, the cut-wheel 2 is placed inside the cut-wheel seat 1, and the cut-wheel 2 squeezes the conical limit block 7 connected to one side of the telescopic rod 5 during its downward sliding process. The conical limit block 7 squeezes the spring 6 between one side of the installation groove 4 and the conical limit block 7 during its movement. As the cut-wheel 1 descends, the conical limit block 7 is pushed into the conical groove 3 provided on the outside of the cut-wheel 2 due to the inertia of the squeezing spring 6 to reinforce the cut-wheel 2.
[0027] See also Figure 4 As shown, a cross-shaped groove 14 is provided on one side of the gear block 9, and a cross-shaped rod is inserted into the cross-shaped groove 14 to drive the gear block 9 to rotate.
[0028] In this embodiment, the cross-shaped rod is inserted into the cross-shaped groove 14 provided on one side of the gear block 9 , and the gear block 9 is rotated to drive the cross-shaped rod to rotate, thereby fixing the cutter wheel 2 .
[0029] Working principle: The utility model is a device for preventing the pick from falling off when the coal mining machine is used. During use, the cutting wheel 2 is slidably connected to the inside of the cutting wheel seat 1. During the downward sliding process of the cutting wheel 2, the conical stopper 7 connected to one side of the telescopic rod 5 is squeezed. During the movement of the conical stopper 7, the spring 6 is squeezed between one side of the installation groove 4 and the conical stopper 7. As the cutting wheel 1 descends, the conical stopper 7 pushes the conical stopper 7 into the conical groove 3 opened on the outside of the cutting wheel 2 due to the inertia of the squeezing spring 6 to reinforce the cutting wheel 2. The cross-shaped rod is inserted into the cross-shaped groove 14 opened on one side of the gear block 9, and the cross-shaped rod is rotated. It is convenient to drive the gear block 9 to rotate, so that the gear block 9 drives the two groups of meshing connected mobile tooth plates 10 to move, so that the mobile tooth plates 10 slide at the bottom of the cutting wheel 2, and the two groups of mobile tooth plates 10 are moved to the two ends of the inside of the cutting wheel seat 1 respectively, and then the mobile plate 12 is attached to one side of the mobile tooth plate 10, and the fixing bolt 13 is passed through one side of the mobile plate 12 and the fixing bolt 13 is rotated to fix the mobile tooth plate 10, and then the mounting seat 1 and the cutting wheel 2 are installed on the coal mining machine for use. The contents not described in detail in this description belong to the existing technology known to professional and technical personnel in this field.
[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A coal mining machine pick anti-swinging device, comprising a pick wheel seat (1) of the anti-swinging device, characterized in that: The cut-wheel seat (1) is slidably connected to the cut-wheel seat (2), a circular groove (8) is provided at the bottom of the cut-wheel seat (2), a gear block (9) is connected to a bearing on one side of the circular groove (8), two groups of movable tooth plates (10) are slidably connected to the circular groove (8), and the movable tooth plates (10) are meshed with the gear block (9), the two ends of the two groups of movable tooth plates (10) are respectively slidably connected to the two ends of the cut-wheel seat (1), and two groups of fixing components are movably installed in the circular groove (8) to fix the movable tooth plates (10).
2. A coal mining machine pick anti-swinging device according to claim 1, characterized in that: The two groups of fixing components include a support seat (11), a movable plate (12) and a fixing bolt (13); the two groups of support seats (11) are respectively annularly mounted on the inner wall of the circular groove (8); one end of the two groups of movable plates (12) are respectively bearing-connected to the inside of the two groups of support seats (11) and the other end of the movable plate (12) is respectively attached to one side of the movable tooth plate (10); the two groups of fixing bolts (13) respectively penetrate the two groups of movable plates (12) and are threadedly connected to one side of the movable tooth plate (10).
3. A coal mining machine pick anti-swinging device according to claim 2, characterized in that: There are two sets of fastening components between the inside of the cut-wheel seat (1) and the cut-wheel (2). When the cut-wheel (2) is inserted into the inside of the cut-wheel seat (1), the two sets of fastening components fasten the cut-wheel (2).
4. A coal mining machine pick anti-swinging device according to claim 3, characterized in that: The fastening assembly comprises a conical groove (3), a mounting groove (4), a telescopic rod (5), a compression spring (6) and a conical stop block (7); two groups of the conical grooves (3) are respectively arranged at two ends of the cut wheel (2); two groups of the mounting grooves (4) are respectively arranged at two ends inside the cut wheel seat (1); two groups of the telescopic rods (5) are respectively connected to one side of the two groups of mounting grooves (4); two groups of the conical stop blocks (7) are respectively connected to the extended ends of the two groups of telescopic rods (5) and the conical stop blocks (7) are clamped inside the conical groove (3); and two groups of the compression springs (6) are respectively installed between one side of the two groups of mounting grooves (4) and the conical stop blocks (7) to compress the conical stop blocks (7).
5. A coal mining machine pick anti-swinging device according to claim 4, characterized in that: A cross-shaped groove (14) is provided on one side of the gear block (9), and a cross-shaped rod is inserted into the cross-shaped groove (14) to drive the gear block (9) to rotate.