Novel limiting device of coal mining machine

Abstract

The utility model relates to the technical field of coal mining machine limiting devices, and discloses a novel coal mining machine limiting device which comprises a coal mining machine body, a buffering box is arranged at the rail end of one side of the coal mining machine body, a limiting plate is arranged on one side of the buffering box, a buffering rod is arranged at one end of the limiting plate, and one end of the buffering rod is movably connected with the buffering box. The outer side wall of the buffer rod is sleeved with a sleeve. According to the technical scheme, the first gear can drive the gear ring to rotate, the brush strip can clean the outer side wall of the buffer rod, the situation that dust and chippings are brought into the buffer bin is further reduced, the situation that the dust and the chippings fall on the left side of the buffer rod can be reduced by being matched with the funnel fence and the rubber pad on the sleeve, and the service life of the buffer rod is prolonged. Furthermore, the buffer rod can be matched with the limiting plate to buffer and limit the coal mining machine body conveniently, and in the process that the rack drives the gears to rotate, the kinetic energy can be counteracted through the movement of the parts, so that the buffer and limiting effect on the coal mining machine body is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of limiting devices for coal mining machines, in particular to a novel limiting device for coal mining machines. Background Art

[0002] A coal mining machine is a large and complex system integrating mechanical, electrical and hydraulic functions. It has a harsh working environment. If a fault occurs, the entire coal mining operation will be interrupted, causing huge economic losses. When the coal mining machine approaches the two ends of the track during production operation, due to complex on-site conditions at the end and poor visibility of the coal mining machine driver, the coal mining machine may deviate from the track or cut the cable. Therefore, a limit device will be set at the end of the track to limit the coal mining machine.

[0003] After searching, the publication number is (CN220469909U), which discloses a new type of coal mining machine limiting device, including a guide rail, on which a coal mining machine body is slidably connected, a rectangular groove is opened on the top surface of the guide rail, a fixed bin is fixed on the top surface of the guide rail, a push rod is horizontally penetrated through the right side wall of the fixed bin and is slidably connected thereto, a buffer plate is fixed to the right side of the push rod, a limiting component for limiting the rebound of the coal mining machine body is provided in the rectangular groove, and a buffer component for buffering and relieving the impact force of the coal mining machine body is provided in the fixed bin.

[0004] When implementing this technical solution, at least the following defects still exist: although this utility model can play a role of limiting buffering for the coal mining machine, it uses air pressure and springs for buffering. However, the dust and debris in the coal mine are easily attached to the buffer rod during the coal mining process. During the buffering process, the dust and debris are easily brought into the buffer bin, thereby affecting the air squeezing buffering and being troublesome to clean. Therefore, it is urgent to improve. Therefore, we propose a new type of coal mining machine limiting device. Utility Model Content

[0005] The purpose of the utility model is to provide a novel limiting device for a coal mining machine, which solves the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel coal mining machine limiting device, comprising a coal mining machine body, a buffer box is arranged at one track end of the coal mining machine body, a limiting plate is arranged at one side of the buffer box, a buffer rod is arranged at one end of the limiting plate, and one end of the buffer rod is movably connected with the buffer box, a sleeve is sleeved on the outer wall of the buffer rod, a funnel enclosure is detachably installed on one side of the sleeve, a gear ring is fixedly installed on the outer side of the sleeve, a straight rod is rotatably installed on the upper end of the sleeve through a bearing, and a fixing frame is fixedly installed on the upper end of the straight rod;

[0007] A fixing rod is rotatably mounted on one end of the fixing frame through a bearing, a driving gear is fixedly mounted on the front end of the fixing rod, a first gear is fixedly mounted on one end of the straight rod, a driven gear is fixedly mounted on the other end of the straight rod, the driving gear is meshed with the driven gear, and a rack is fixedly mounted on the upper end of the limiting plate.

[0008] By adopting the above technical scheme, the first gear can drive the gear ring to rotate, thereby driving the sleeve to rotate. When the buffer rod goes deeper to the left, the brush bar can clean the outer wall of the buffer rod, further reducing the dust and debris from being brought into the buffer bin. The funnel enclosure and rubber pad on the sleeve can also be used to reduce the dust and debris from falling on the left side of the buffer rod, further facilitating the buffer rod to cooperate with the limit plate to buffer and limit the coal mining machine body. In the process of the rack driving each gear to rotate, the kinetic energy can be offset by the movement of each component, thereby further improving the buffering and limiting effect on the coal mining machine body.

[0009] Optionally, the gear ring is arranged below the first gear, and the gear ring is meshed with the first gear.

[0010] By adopting the above technical solution, it is convenient to cooperate with the first gear through the gear ring, so as to drive the sleeve to rotate in conjunction with it to perform work.

[0011] Optionally, a rubber pad is bonded to one side of the funnel enclosure, and the rubber pad is in contact with the outer side wall of the buffer box.

[0012] By adopting the above technical solution, it is easy to cooperate with the rubber pad on the funnel enclosure, thereby ensuring the fitting and sealing effect of the rubber pad and the buffer box.

[0013] Optionally, the inner diameter of the funnel enclosure is larger than the inner diameter of the sleeve, and the funnel enclosure is funnel-shaped.

[0014] By adopting the above technical solution, it is convenient to coordinate the size and shape of the funnel enclosure, so as to further protect the outer side of the buffer rod and block the adhesion of dust and debris in the coal mine.

[0015] Optionally, a second gear is fixedly mounted on one end of the fixing rod, the second gear is arranged above the rack, and the second gear is meshed with the rack.

[0016] By adopting the above technical solution, the second gear can cooperate with the rack to drive the fixed rod to rotate, thereby further driving the straight rod to rotate.

[0017] Optionally, a brush strip is fixedly mounted on the other side of the sleeve, and the brush filaments of the brush strip are in contact with the outer side wall of the buffer rod.

[0018] By adopting the above technical solution, it is easy to ensure the cleaning effect of the brush strip on the outer surface of the buffer rod.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0020] The technical solution of the present application can enable the first gear to drive the gear ring to rotate, thereby driving the sleeve to rotate, and in the process of the buffer rod moving deeper to the left, the brush bar can clean the outer wall of the buffer rod, further reducing the situation of dust and debris being brought into the buffer bin, and can cooperate with the funnel enclosure and rubber pad on the sleeve to reduce the situation of dust and debris falling on the left side of the buffer rod, further facilitating the buffer rod to cooperate with the limit plate to buffer and limit the coal mining machine body, and in the process of the rack driving the various gears to rotate, the kinetic energy can be offset by the movement of each component, thereby further improving the buffering and limiting effect of the coal mining machine body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of a new type of coal mining machine limit device of the utility model;

[0023] Figure 2 This is a schematic diagram of the side view of the fixing frame of a new type of coal mining machine limiting device of the utility model;

[0024] Figure 3 This is a partial enlarged structural schematic diagram of location A of a novel coal mining machine limiting device of the utility model.

[0025] In the figure: 1. Coal mining machine body; 11. Buffer box; 12. Limit plate; 13. Buffer rod; 2. Sleeve; 21. Funnel enclosure; 22. Rubber pad; 23. Gear ring; 24. First gear; 3. Fixed frame; 31. Fixed rod; 32. Second gear; 33. Driven gear; 34. Driving gear; 4. Straight rod; 5. Rack; 6. Brush bar. DETAILED DESCRIPTION

[0026] See also Figure 1-3The utility model provides a technical solution: a novel coal mining machine limiting device, comprising a coal mining machine body 1, a buffer box 11 is arranged at one track end of the coal mining machine body 1, a limiting plate 12 is arranged at one side of the buffer box 11, a buffer rod 13 is arranged at one end of the limiting plate 12, and one end of the buffer rod 13 is movably connected with the buffer box 11, a sleeve 2 is sleeved on the outer wall of the buffer rod 13, a funnel enclosure 21 is detachably installed on one side of the sleeve 2, a gear ring 23 is fixedly installed on the outer side of the sleeve 2, a straight rod 4 is rotatably installed on the upper end of the sleeve 2 through a bearing, and a fixing frame 3 is fixedly installed on the upper end of the straight rod 4;

[0027] A fixing rod 31 is rotatably mounted on one end of the fixing frame 3 through a bearing, a driving gear 34 is fixedly mounted on the front end of the fixing rod 31, a first gear 24 is fixedly mounted on one end of the straight rod 4, a driven gear 33 is fixedly mounted on the other end of the straight rod 4, the driving gear 34 is meshed with the driven gear 33, a rack 5 is fixedly mounted on the upper end of the limiting plate 12, the inner diameter of the funnel enclosure 21 is larger than the inner diameter of the sleeve 2, and the funnel enclosure 21 is funnel-shaped, so that the outer side of the buffer rod 13 can be further adjusted by matching the size and shape of the funnel enclosure 21. In order to protect against the adhesion of dust and debris in the coal mine, a second gear 32 is fixedly installed at one end of the fixed rod 31, and the second gear 32 is arranged above the rack 5, and the second gear 32 is meshed with the rack 5, so that the second gear 32 cooperates with the rack 5, thereby driving the fixed rod 31 to rotate, and further driving the straight rod 4 to rotate, and a brush strip 6 is fixedly installed on the other side of the sleeve 2, and the brush wires of the brush strip 6 are in contact with the outer wall of the buffer rod 13, so as to ensure the cleaning effect of the brush strip 6 on the outer surface of the buffer rod 13.

[0028] The gear ring 23 is disposed below the first gear 24 , and the gear ring 23 meshes with the first gear 24 , so that the gear ring 23 cooperates with the first gear 24 , thereby driving the sleeve 2 to rotate in conjunction to perform work.

[0029] A rubber pad 22 is bonded to one side of the funnel enclosure 21 , and the rubber pad 22 fits against the outer wall of the buffer box 11 , so that the rubber pad 22 on the funnel enclosure 21 cooperates, thereby ensuring the fitting and sealing effect between the rubber pad 22 and the buffer box 11 .

[0030] During buffering and limiting, after the coal mining machine body 1 contacts the limiting plate 12, the limiting plate 12 cooperates with the piston plate and the spring to perform limiting buffering. At the same time, when the limiting plate 12 moves to the left, the rack 5 on the limiting plate 12 rotates accordingly, and the rack 5 drives the second gear 32 to rotate, and the second gear 32 drives the fixed rod 31 to rotate, and the driving gear 34 on the fixed rod 31 drives the driven gear 33 to rotate, so that the driven gear 33 drives the straight rod 4 to rotate, and the straight rod 4 drives the first gear 24 to rotate, so that the first gear 24 drives the gear ring 23 to rotate, thereby driving the sleeve 2 to rotate. Rotate, and when the buffer rod 13 goes deeper to the left, the brush bar 6 cleans the outer wall of the buffer rod 13, further reducing the dust and debris from being brought into the buffer bin. At the same time, the funnel enclosure 21 and the rubber pad 22 on the sleeve 2 reduce the dust and debris from falling on the left side of the buffer rod 13, further facilitating the buffer rod 13 to cooperate with the limit plate 12 to buffer and limit the coal mining machine body 1. At the same time, when the rack 5 drives the gears to rotate, the kinetic energy can be offset by the movement of each component, thereby further improving the buffering and limiting effect of the coal mining machine body 1.

Claims

1. A novel coal mining machine limit device, comprising a coal mining machine body (1), characterized in that: A buffer box (11) is provided at one track end of the coal mining machine body (1), a limit plate (12) is provided at one side of the buffer box (11), a buffer rod (13) is provided at one end of the limit plate (12), and one end of the buffer rod (13) is movably connected to the buffer box (11), a sleeve (2) is sleeved on the outer wall of the buffer rod (13), a funnel enclosure (21) is detachably mounted on one side of the sleeve (2), a gear ring (23) is fixedly mounted on the outer side of the sleeve (2), a straight rod (4) is rotatably mounted on the upper end of the sleeve (2) through a bearing, and a fixing frame (3) is fixedly mounted on the upper end of the straight rod (4); A fixing rod (31) is rotatably mounted on one end of the fixing frame (3) via a bearing, a driving gear (34) is fixedly mounted on the front end of the fixing rod (31), a first gear (24) is fixedly mounted on one end of the straight rod (4), a driven gear (33) is fixedly mounted on the other end of the straight rod (4), the driving gear (34) is meshed with the driven gear (33), and a rack (5) is fixedly mounted on the upper end of the limiting plate (12).

2. A new type of coal mining machine limiting device according to claim 1, characterized in that: The gear ring (23) is arranged below the first gear (24), and the gear ring (23) is meshed with the first gear (24).

3. A new type of coal mining machine limiting device according to claim 1, characterized in that: A rubber pad (22) is bonded to one side of the funnel enclosure (21), and the rubber pad (22) is in contact with the outer side wall of the buffer box (11).

4. A new type of coal mining machine limiting device according to claim 1, characterized in that: The inner diameter of the funnel enclosure (21) is greater than the inner diameter of the sleeve (2), and the funnel enclosure (21) is funnel-shaped.

5. A new type of coal mining machine limiting device according to claim 1, characterized in that: A second gear (32) is fixedly mounted on one end of the fixing rod (31); the second gear (32) is arranged above the rack (5), and the second gear (32) is meshed with the rack (5).

6. A new type of coal mining machine limiting device according to claim 1, characterized in that: A brush strip (6) is fixedly mounted on the other side of the sleeve (2), and the brush filaments of the brush strip (6) are in contact with the outer side wall of the buffer rod (13).

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