Rotary table with positioning function for coal mining machine

Abstract

The utility model discloses a rotary table with a positioning function for a coal mining machine, which belongs to the technical field of engineering machinery and comprises a rotary table shell, and a locking component is mounted on the rotary table shell. The locking assembly comprises a rotating shaft device and a locking device, the rotary table shell is connected with the rotating shaft device and the locking device, and the rotating shaft device is connected with the locking device; a rotary table cover plate assembly convenient to install is installed on the rotary table shell. And a driving device for adjusting the angle of the device is mounted on the rotary table shell. By means of the mode, the rotary table shell with the adjusted angle is fixed, it is avoided that when the device digs a coal mine at a specific angle, the digging angle is deflected due to the reactive force of ore, and it is avoided that due to the wrong digging angle, a mine hole locally collapses.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, and particularly relates to a rotary table for a shearer with a positioning function. Background Art

[0002] In modern coal mines, a tunneling shearer is usually used to excavate coal. In order to meet the multi-angle coal mining requirements of the shearer, a rotary table is usually used to fix the robotic arm of the shearer, so as to achieve coal mining at multiple angles.

[0003] For example, the Chinese utility model patent CN217421194U discloses a rotary table and a roadheader. A first connecting member is arranged on a rotary seat, and includes a first ear seat and a second ear seat arranged at intervals. Second through holes are correspondingly arranged on both the first ear seat and the second ear seat.

[0004] However, it still has the following drawbacks. When the device mines coal at a specific angle, the mining angle may deflect due to the reaction force of the coal, resulting in local collapse of the coal mine.

[0005] Based on this, the utility model designs a rotary table for a shearer with a positioning function to solve the above problems. Summary of the Utility Model

[0006] Aiming at the above-mentioned drawbacks of the prior art, the utility model provides a rotary table for a shearer with a positioning function.

[0007] To achieve the above objectives, the utility model is realized through the following technical solutions:

[0008] A rotary table for a shearer with a positioning function includes a rotary table housing, and a locking assembly is installed on the rotary table housing;

[0009] The locking assembly includes a rotating shaft device and a locking device. The rotary table housing is connected to the rotating shaft device and the locking device, and the rotating shaft device is connected to the locking device;

[0010] A rotary table cover assembly for easy installation is installed on the rotary table housing;

[0011] A driving device for adjusting the angle of the device is installed on the rotary table housing.

[0012] Furthermore, the rotating shaft device includes a rotating shaft and a slot. The inner wall of the rotary table housing is rotatably connected to the rotating shaft, and the rotating shaft is provided with a slot.

[0013] Furthermore, the rotating shaft and the slot are connected to the locking device.

[0014] Further, the locking device includes a cylinder, a toothed plate, a limiting post, a limiting groove and limiting teeth. The inner wall of the upper end of the rotary table housing is fixedly connected with the limiting teeth. The bottom of the slot hole is fixedly connected with the cylinder. The output end of the cylinder is fixedly connected with the toothed plate. A plurality of limiting grooves are opened at the upper end of the rotating shaft. A plurality of limiting posts are fixedly connected to the lower end of the toothed plate at equal intervals. The limiting posts are slidably connected in the limiting grooves.

[0015] Further, the plurality of limiting grooves are opened on the rotating shaft at equal intervals.

[0016] Further, an ear seat is fixedly connected to the left end of the rotary table housing.

[0017] Further, the rotary table cover assembly includes a rotary table cover, a locking bolt and a locking groove. The locking grooves are opened at equal intervals on the upper end of the rotary table housing. The locking bolt is slidably connected in the locking groove. The outer wall of the locking bolt is rotatably connected with the rotary table cover.

[0018] Further, the driving device includes a support column, an oil cylinder, a connecting block, a bolt and a connecting head. Connecting blocks are fixedly connected to both the front and rear ends of the rotary table housing. The right end of the connecting block fixes the connecting head in the connecting block through the bolt. The outer wall of the bolt is rotatably connected with the connecting head. The right end of the connecting head is fixedly connected to the output end of the oil cylinder. The right end of the oil cylinder is rotatably connected with the support column.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] In the embodiment of the present utility model, when the position of the device is adjusted, the output end of the cylinder of the locking device in the slot hole of the rotating shaft device of the locking assembly drives the toothed plate to move upward. The rotary table housing is clamped by the upward movement of the toothed plate and meshing with the limiting teeth. The limiting grooves opened on the rotating shaft limit the limiting posts to prevent the position of the toothed plate from shifting and being unable to clamp the limiting teeth. When the device needs to adjust the angle, the output end of the cylinder drives the toothed plate to move downward to disengage from the limiting teeth and release the locking of the limiting teeth. By fixing the rotary table housing after adjusting the angle, it is avoided that when the device mines coal at a specific angle, the angle of mining is deflected due to the reaction force of the ore, and it is avoided that the local collapse of the mine tunnel is caused by the incorrect mining angle.

[0021] In the embodiment of the present utility model, when the device starts to be assembled, the locking bolt of the rotary table cover assembly is inserted into the locking groove, and the rotary table cover is fixed on the rotary table housing by rotating the locking bolt. When the rotary table cover needs to be replaced, the locking bolt is taken out of the locking groove by rotating the locking bolt, thus completing the disassembly and assembly of the rotary table cover. By quickly disassembling and assembling the rotary table cover, the parts sealed and protected inside the rotary table cover can be replaced and repaired in time, reducing the device maintenance time and improving the device working efficiency. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 Three-dimensional view of a slewing platform for a shearer with a positioning function according to the present invention Figure 1 ;

[0024] Figure 2 Front view of a slewing platform for a shearer with a positioning function according to the present invention;

[0025] Figure 3 Left view of a slewing platform for a shearer with a positioning function according to the present invention;

[0026] Figure 4 Three-dimensional view of a slewing platform for a shearer with a positioning function according to the present invention Figure 2 ;

[0027] Figure 5 Exploded view of a slewing platform for a shearer with a positioning function according to the present invention;

[0028] Figure 6 Along Figure 3 Section view along the A-A direction of Figure 1 ;

[0029] Figure 7 Along Figure 3 Section view along the A-A direction of Figure 2 .

[0030] The reference numerals in the figures respectively represent:

[0031] 1, slewing platform housing; 2, slewing platform cover assembly; 21, slewing platform cover; 22, locking bolt; 23, locking groove; 3, driving device; 31, support column; 32, oil cylinder; 33, connecting block; 34, bolt; 35, connecting head; 4, locking assembly; 41, rotating shaft device; 42, locking device; 411, rotating shaft; 412, slot hole; 421, cylinder; 422, toothed plate; 423, limiting column; 424, limiting groove; 425, limiting tooth. Detailed implementation manners

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0033] In the following description, "left", "right", "front", "rear", "upper", and "lower" mentioned are oriented in the perspective direction of the front view.

[0034] Embodiment 1

[0035] In some embodiments, please refer to the attached drawings of the specification Figure 1 - 7 , a rotary table for a coal shearer with a positioning function, including a rotary table housing 1;

[0036] A locking assembly 4 is installed on the rotary table housing 1;

[0037] The locking assembly 4 includes a rotating shaft device 41 and a locking device 42. The rotary table housing 1 is connected to the rotating shaft device 41 and the locking device 42, and the rotating shaft device 41 is connected to the locking device 42;

[0038] The rotating shaft device 41 includes a rotating shaft 411 and a slot 412. The inner wall of the rotary table housing 1 is rotatably connected to the rotating shaft 411, and the rotating shaft 411 is provided with a slot 412. The rotating shaft 411 and the slot 412 are connected to the locking device 42;

[0039] The locking device 42 includes a cylinder 421, a toothed plate 422, a limit post 423, a limit groove 424, and a limit tooth 425. The upper inner wall of the rotary table housing 1 is fixedly connected to the limit tooth 425. The bottom of the slot 412 is fixedly connected to the cylinder 421. The output end of the cylinder 421 is fixedly connected to the toothed plate 422. A plurality of limit grooves 424 are equidistantly opened at the upper end of the rotating shaft 411. A plurality of limit posts 423 are equidistantly fixedly connected to the lower end of the toothed plate 422. The limit posts 423 are slidably connected in the limit grooves 424;

[0040] Preferably, an ear seat is fixedly connected to the left end of the rotary table housing 1;

[0041] In the embodiment of the present utility model, after the position of the device is adjusted, the output end of the air cylinder 421 of the locking device 42 in the slot 412 of the rotating shaft device 41 of the locking assembly 4 drives the toothed plate 422 to move upward. The rotating table housing 1 is clamped by the upward movement of the toothed plate 422 and meshing with the limiting tooth 425. The limiting groove 424 opened on the rotating shaft 411 limits the limiting column 423 to prevent the position of the toothed plate 422 from shifting and being unable to clamp the limiting tooth 425. When the device needs to adjust the angle, the output end of the air cylinder 421 drives the toothed plate 422 to move downward and disengage from the limiting tooth 425 to release the locking of the limiting tooth 425. By fixing the rotating table housing 1 after adjusting the angle, when the device mines coal at a specific angle, the reaction force of the ore is avoided, resulting in the deflection of the mining angle, and the local collapse of the mine tunnel caused by the incorrect mining angle is avoided.

[0042] A turntable cover plate assembly 2 for easy installation is installed on the turntable housing 1;

[0043] The turntable cover plate assembly 2 includes a turntable cover plate 21, a locking bolt 22 and a locking groove 23. Locking grooves 23 are equidistantly opened at the upper end of the turntable housing 1. A locking bolt 22 is slidably connected in the locking groove 23, and a turntable cover plate 21 is rotatably connected to the outer wall of the locking bolt 22;

[0044] In the embodiment of the present utility model, when the device starts to be assembled, the locking bolt 22 of the turntable cover plate assembly 2 is inserted into the locking groove 23, and the turntable cover plate 21 is fixed on the turntable housing 1 by rotating the locking bolt 22. When the turntable cover plate 21 needs to be replaced, the locking bolt 22 is taken out of the locking groove 23 by rotating the locking bolt 22, thereby completing the disassembly and assembly of the turntable cover plate 21. By quickly disassembling and assembling the turntable cover plate 21, the parts sealed and protected inside the turntable cover plate 21 can be replaced and repaired in time, reducing the device maintenance time and improving the device working efficiency.

[0045] A driving device 3 for adjusting the angle of the device is installed on the turntable housing 1;

[0046] The driving device 3 includes a support column 31, an oil cylinder 32, a connecting block 33, a bolt 34 and a connecting head 35. Connecting blocks 33 are fixedly connected to both the front and rear ends of the turntable housing 1. The connecting head 35 is fixed in the connecting block 33 by a bolt 34 at the right end of the connecting block 33. The outer wall of the bolt 34 is rotatably connected to the connecting head 35. The right end of the connecting head 35 is fixedly connected to the output end of the oil cylinder 32, and the right end of the oil cylinder 32 is rotatably connected to the support column 31;

[0047] In the embodiment of the present utility model, when the device starts to adjust the angle, power is provided by the oil cylinder 32 on one support column 31 of the driving device 3. The output end of one oil cylinder 32 drives the connector 35 to move. The connecting block 33 is connected to the connector 35 through the bolt 34. The movement of the connector 35 drives the connecting block 33 to move, and the movement of the connecting block 33 drives the rotary table housing 1 to rotate and adjust the angle. At the same time, the oil cylinder 32 on the other support column 31 contracts synchronously. The contraction of the oil cylinder 32 drives the connecting block 33 to rotate to complete the angle adjustment. Through the angle adjustment of the device, the device can excavate ores at various angles.

[0048] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A rotary table for a coal mining machine with a positioning function, comprising a rotary table housing (1), characterized in that: A locking assembly (4) is installed on the turntable housing (1); The locking assembly (4) comprises a rotating shaft device (41) and a locking device (42); the turntable housing (1) is connected to the rotating shaft device (41) and the locking device (42); and the rotating shaft device (41) is connected to the locking device (42); The turntable housing (1) is provided with a turntable cover assembly (2) which is easy to install; A driving device (3) for adjusting the angle of the device is installed on the turntable housing (1).

2. The rotary table with positioning function for coal mining machine according to claim 1, characterized in that: The rotating shaft device (41) comprises a rotating shaft (411) and a slot hole (412); the rotating shaft (411) is rotatably connected to the inner wall of the turntable housing (1); and the slot hole (412) is provided on the rotating shaft (411).

3. The rotary table with positioning function for coal mining machine according to claim 2, characterized in that: The rotating shaft (411) and the slot hole (412) are connected to the locking device (42).

4. The rotary table with positioning function for coal mining machine according to claim 3, characterized in that: The locking device (42) comprises a cylinder (421), a tooth plate (422), a limiting column (423), a limiting groove (424) and a limiting tooth (425); the limiting tooth (425) is fixedly connected to the inner wall of the upper end of the turntable housing (1); the cylinder (421) is fixedly connected to the bottom of the slot hole (412); the tooth plate (422) is fixedly connected to the output end of the cylinder (421); a plurality of limiting grooves (424) are provided at the upper end of the rotating shaft (411); a plurality of limiting columns (423) are fixedly connected to the lower end of the tooth plate (422) at equal intervals; and the limiting columns (423) are slidably connected in the limiting grooves (424).

5. The rotary table with positioning function for coal mining machine according to claim 4, characterized in that: The plurality of limit grooves (424) are arranged on the rotating shaft (411) at equal intervals.

6. The rotary table with positioning function for coal mining machine according to claim 5, characterized in that: The left end of the turntable housing (1) is fixedly connected with an ear seat.

7. The rotary table with positioning function for coal mining machine according to claim 6, characterized in that: The turntable cover assembly (2) comprises a turntable cover (21), a locking bolt (22) and a locking groove (23); the upper end of the turntable housing (1) is provided with locking grooves (23) at equal intervals; the locking bolts (22) are slidably connected in the locking grooves (23); and the outer wall of the locking bolts (22) is rotatably connected to the turntable cover (21).

8. The rotary table with positioning function for coal mining machine according to claim 7, characterized in that: The driving device (3) comprises a supporting column (31), an oil cylinder (32), a connecting block (33), a bolt (34) and a connecting head (35); the connecting blocks (33) are fixedly connected to the front and rear ends of the turntable housing (1); the right end of the connecting block (33) fixes the connecting head (35) in the connecting block (33) through the bolt (34); the outer wall of the bolt (34) is rotatably connected to the connecting head (35); the right end of the connecting head (35) is fixedly connected to the output end of the oil cylinder (32); and the right end of the oil cylinder (32) is rotatably connected to the supporting column (31).

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