Adjustable multifunctional rotary table for coal mining machine

Abstract

The utility model discloses an adjustable multifunctional rotary table for a coal mining machine, which belongs to the technical field of engineering machinery and comprises a rotary table shell, and an automatic locking limit locking component is mounted on the rotary table shell. The limiting and locking assembly comprises a limiting device and a locking device, the rotary table shell is connected with the limiting device, and the limiting device is connected with the locking device; a shaft sleeve assembly which reduces abrasion and is convenient to assemble is installed on the rotary table shell. A driving assembly for driving the device to operate is installed on the rotary table shell and connected with the limiting device. By means of the mode, when the angle of the device is adjusted for ore mining, in order to prevent the device from being damaged due to the fact that the adjusting angle of the device is too large, when the device is adjusted to a specific angle range, the device is locked, and the device is prevented from being damaged due to continuous movement and adjustment.

Description

Technical Field

[0001] The utility model relates to the technical field of construction machinery, in particular to a multifunctional rotary table for an adjustable shearer. Background Technique

[0002] In modern mine coal mining, the heading shearer is usually used to replace manual coal mining, which improves the coal mining efficiency. In order to make the coal mining machine have a larger mining angle, the robotic arm of the coal mining machine is usually fixed on the rotary table, and the robotic arm of the coal mining machine is driven to rotate by pushing the rotary table to achieve multi-angle coal mining.

[0003] For example, Chinese Utility Model Patent CN214787362U discloses a rotary mechanism and a roadheader. The slewing bearing is arranged on the body part of the roadheader, and a first insertion part is arranged on the outer peripheral side part thereof; the rotary table is connected with the cutting arm. The rotary table includes at least two rotary parts detachably connected in sequence along the outer peripheral side of the slewing bearing. A second insertion part is arranged on one side of the rotary part close to the slewing bearing.

[0004] However, it still has the following drawbacks. When the device is mining coal, during the process of the power device driving the rotating shaft to rotate and driving the robotic arm to rotate, the connection part between the rotating shaft and the rotary table will be continuously worn, which may reduce the service life of the rotary table.

[0005] Based on this, the utility model designs a multifunctional rotary table for an adjustable shearer to solve the above problems. Content of the Utility Model

[0006] In view of the above-mentioned drawbacks existing in the prior art, the utility model provides a multifunctional rotary table for an adjustable shearer.

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

[0008] A multifunctional rotary table for an adjustable shearer, including a rotary table housing, on which an automatically locked limit locking assembly is installed;

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

[0010] A bushing assembly for reducing wear and facilitating assembly is installed on the rotary table housing;

[0011] A drive assembly for driving the operation of the device is installed on the rotary table housing, and the drive assembly is connected to the limit device.

[0012] Furthermore, the limiting device includes a first rotating shaft, a slot, a first limiting slot, a limiting rod and a turntable. The inner wall of the rotary table housing is rotatably connected to the first rotating shaft. A slot is provided at the upper end of the first rotating shaft. A first limiting slot is provided on the upper left side of the rotary table housing. The first limiting slot communicates with the slot. The bottom of the slot is rotatably connected to a turntable. One end of the limiting rod is fixedly connected to the right end of the turntable, and the other end of the limiting rod is fixedly connected to the rotary table housing. The limiting rod is slidably connected in the first limiting slot.

[0013] Furthermore, the first rotating shaft is connected to the driving assembly.

[0014] Furthermore, the turntable is connected to the locking device.

[0015] Furthermore, the locking device includes a U-shaped groove, a limiting sliding groove, a limiting slider, a sleeve rod, a clamping block, a support platform and a second rotating shaft. U-shaped grooves are equidistantly provided at the four sides of the upper end of the turntable. Limiting sliding grooves are provided at the four sides of the upper end of the rotary table housing. Limiting sliders are slidably connected in the limiting sliding grooves. Sleeve rods are slidably connected to the outer walls of the limiting sliders. The lower ends of the sleeve rods are in contact connection with the bottom of the U-shaped grooves. The upper ends of the sleeve rods are fixedly connected to one end of the clamping block close to the U-shaped groove. A pair of support platforms are fixedly connected to the four sides of the upper end of the first rotating shaft. A second rotating shaft is rotatably connected to one end of the pair of support platforms facing each other. The clamping block is fixedly connected to the outer wall of the second rotating shaft.

[0016] Furthermore, the easily assembled bushing assembly includes a second limiting slot, a bushing, an ear seat, a first bolt and a nut. A pair of ear seats are fixedly connected to the left end of the rotary table housing. A second limiting slot is provided in the ear seat. Bushings are slidably connected in the second limiting slots. One end of the pair of bushings facing each other is fixedly connected to the ear seat through a first bolt. Nuts are threadedly connected to the other ends of the bushings.

[0017] Furthermore, the bushing is made of a metal material.

[0018] Furthermore, the driving assembly includes a base, a connecting block, a second bolt, a connecting head, an oil cylinder and a support rod. The lower end of the first rotating shaft is fixedly connected to the base. A pair of support rods are fixedly connected to the upper right side of the base. The upper ends of the support rods are rotatably connected to an oil cylinder. The output end of the oil cylinder is fixedly connected to a connecting head. Connecting blocks are fixedly connected to the front and rear ends of the rotary table housing respectively. The connecting head is connected to the connecting block through a second bolt. The outer wall of the second bolt is rotatably connected to the connecting head.

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

[0020] 1. The utility model drives the limiting rod of the limiting device of the limiting and locking assembly to rotate in the first limiting groove opened on the first rotating shaft through the rotation of the rotating table housing. The rotation of the limiting rod drives the turntable to rotate in the slot hole. The rotation of the turntable drives the U-shaped groove of the locking device opened on the turntable to rotate. The rotation of the U-shaped groove compresses the sleeve rod to move upward. The upward movement of the sleeve rod drives the clamping block to rotate. The rotation of the clamping block drives the second rotating shaft to rotate on the support platform. At the same time, the front end of the rotating clamping block presses and locks the rotating table housing. The function of the limiting chute is that when the turntable rotates, the lower end of the limiting slider slides in the limiting chute and does not move synchronously with the turntable, so that the limiting slider always stays in the same position. When the device adjusts the angle to mine ore, in order to avoid damage to the device caused by excessive adjustment of the device angle, when it is adjusted to a specific angle range, the device is locked to prevent it from continuing to move and adjust, resulting in device damage.

[0021] 2. The utility model slides the bushing of the bushing assembly that is convenient for assembly into the ear seat along the second limiting groove opened on the ear seat. At the same time, the bushing and the ear seat are fixedly connected by the first bolt. The other end of the bushing is fixed by inserting a nut into the outer end of the bushing and rotating the nut. By replacing the bushing, it is avoided that when the robotic arm adjusts the angle, it drives the rotating shaft to rotate and wears the inner wall of the ear seat, accelerating the wear of the overall casting of the rotating table. When the bushing is worn, only need to disassemble and replace it, without damaging the rotating table housing, and there is no need to disassemble the whole device, which improves the replacement efficiency. At the same time, only replacing this component of the bushing reduces the cost of replacing components. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0023] Figure 1 is a three-dimensional view of a multi-functional rotating table for an adjustable coal mining machine of the present utility model Figure 1 ;

[0024] Figure 2 is a front view of a multi-functional rotating table for an adjustable coal mining machine of the present utility model;

[0025] Figure 3 is a left view of a multi-functional rotating table for an adjustable coal mining machine of the present utility model;

[0026] Figure 4 is a three-dimensional view of a multi-functional rotating table for an adjustable coal mining machine of the present utility model Figure 2 ;

[0027] Figure 5 is a three-dimensional view of a multi-functional rotary table for an adjustable shearer of the present utility model Figure 3 ;

[0028] Figure 6 is a sectional view taken along the A-A direction of Figure 3 ;

[0029] Figure 7 is a partial part drawing of a limit locking assembly of a multi-functional rotary table for an adjustable shearer of the present utility model

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

[0031] 1, rotary table housing; 2, limit locking assembly; 21, limit device; 22, locking device; 211, first rotating shaft; 212, slot hole; 213, first limit groove; 214, limit rod; 215, turntable; 221, U-shaped groove; 222, limit sliding groove; 223, limit sliding block; 224, sleeve rod; 225, clamping block; 226, support platform; 227, second rotating shaft; 3, bushing assembly for easy assembly; 31, second limit groove; 32, bushing; 33, ear seat; 34, first bolt; 35, nut; 4, drive assembly; 41, base; 42, connecting block; 43, second bolt; 44, connecting head; 45, oil cylinder; 46, support rod Specific embodiments

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

[0034] Embodiment 1

[0035] In some embodiments, please refer to the accompanying drawings of the specification Figures 1 - 7 , a multi-functional rotary table for an adjustable shearer, comprising a rotary table housing 1

[0036] An automatically locking limit locking assembly 2 is installed on the rotary table housing 1, and the limit locking assembly 2 is connected to the drive assembly 4

[0037] The limit locking assembly 2 includes a limiting device 21 and a locking device 22. The rotary table housing 1 is connected to the limiting device 21, and the limiting device 21 is connected to the locking device 22 and the driving assembly 4;

[0038] The limiting device 21 includes a first rotating shaft 211, a slot hole 212, a first limiting slot 213, a limiting rod 214 and a turntable 215. The inner wall of the rotary table housing 1 is rotatably connected to the first rotating shaft 211. The first rotating shaft 211 is connected to the driving assembly 4. A slot hole 212 is opened at the upper end of the first rotating shaft 211. A first limiting slot 213 is opened at the upper left side of the rotary table housing 1. The first limiting slot 213 communicates with the slot hole 212. The bottom of the slot hole 212 is rotatably connected to a turntable 215. The turntable 215 is connected to the locking device 22. The right end of the turntable 215 is fixedly connected to one end of a limiting rod 214. The other end of the limiting rod 214 is fixedly connected to the rotary table housing 1. The limiting rod 214 is slidably connected in the first limiting slot 213;

[0039] The locking device 22 includes a U-shaped groove 221, a limiting sliding groove 222, a limiting slider 223, a sleeve rod 224, a clamping block 225, a support platform 226 and a second rotating shaft 227. U-shaped grooves 221 are equally spaced at the four sides of the upper end of the turntable 215. Limiting sliding grooves 222 are opened at the four sides of the upper end of the rotary table housing 1. Limiting sliders 223 are slidably connected in the limiting sliding grooves 222. Sleeve rods 224 are slidably connected to the outer walls of the limiting sliders 223. The lower ends of the sleeve rods 224 are in contact connection with the inner bottom of the U-shaped grooves 221. The upper ends of the sleeve rods 224 are fixedly connected to one end of the clamping block 225 close to the U-shaped groove 221. A pair of support platforms 226 are fixedly connected to the four sides of the upper end of the first rotating shaft 211. A second rotating shaft 227 is rotatably connected to the opposite ends of a pair of support platforms 226. The clamping block 225 is fixedly connected to the outer wall of the second rotating shaft 227;

[0040] In the embodiment of the present utility model, when the device starts to adjust the angle, the rotation of the turntable housing 1 drives the limiting rod 214 of the limiting device 21 of the limiting and locking assembly 2 to rotate in the first limiting groove 213 opened on the first rotating shaft 211. The rotation of the limiting rod 214 drives the turntable 215 to rotate in the slot hole 212. The rotation of the turntable 215 drives the U-shaped groove 221 of the locking device 22 opened on the turntable 215 to rotate. The rotation of the U-shaped groove 221 presses the sleeve rod 224 to move upward. The upward movement of the sleeve rod 224 drives the clamping block 225 to rotate. The rotation of the clamping block 225 drives the second rotating shaft 227 to rotate on the support platform 226. At the same time, the rotating clamping block 225 presses and locks the turntable housing 1. The function of the limiting sliding groove 222 is that when the turntable 215 rotates, the lower end of the limiting slider 223 slides in the limiting sliding groove 222 and does not move synchronously with the turntable 215, so that the limiting slider 223 always stays in the same position. When the device adjusts the angle to mine ore, in order to avoid damage to the device caused by excessive adjustment of the angle of the device, when it is adjusted to a specific angle range, the device is locked to prevent it from continuing to move and adjust, resulting in damage to the device.

[0041] A wear-reducing and assembly-facilitating bushing assembly 3 is installed on the turntable housing 1;

[0042] The assembly-facilitating bushing assembly 3 includes a second limiting groove 31, a bushing 32, an ear seat 33, a first bolt 34 and a nut 35. A pair of ear seats 33 are fixedly connected to the left end of the turntable housing 1. The second limiting groove 31 is opened in the ear seat 33. The bushing 32 is slidably connected in the second limiting groove 31. One end of the pair of bushings 32 facing each other is fixedly connected to the ear seat 33 through the first bolt 34. The other end of the bushing 32 is threadedly connected with the nut 35;

[0043] Preferably, the bushing 32 is made of a metal material;

[0044] In the embodiment of the present utility model, when the device starts to be installed, the bushing 32 of the assembly-facilitating bushing assembly 3 is slid into the ear seat 33 along the second limiting groove 31 opened on the ear seat 33. At the same time, the bushing 32 is fixedly connected to the ear seat 33 through the first bolt 34. The other end of the bushing 32 is fixed by inserting the nut 35 into the outer end of the bushing 32 and rotating the nut 35. By replacing the bushing 32, it is avoided that when the robotic arm adjusts the angle, the rotation of the rotating shaft wears the inner wall of the ear seat 33 and accelerates the wear of the overall casting of the turntable. When the bushing 32 is worn, only the bushing 32 needs to be disassembled and replaced, and the turntable housing 1 will not be damaged. There is no need to disassemble the entire device, which improves the replacement efficiency. At the same time, only replacing the component of the bushing 32 reduces the cost of replacing components.

[0045] A driving assembly 4 for driving the device to operate is installed on the turntable housing 1, and the driving assembly 4 is connected to the limiting and locking assembly 2;

[0046] The driving assembly 4 includes a base 41, a connecting block 42, a second bolt 43, a connecting head 44, an oil cylinder 45 and a support rod 46. The lower end of the first rotating shaft 211 is fixedly connected to the base 41. A pair of support rods 46 are fixedly connected to the upper right side of the base 41. The upper ends of the support rods 46 are rotatably connected to the oil cylinders 45. The output end of the oil cylinder 45 is fixedly connected to the connecting head 44. Connecting blocks 42 are respectively fixedly connected to the front and rear ends of the rotary table housing 1. The connecting block 42 connects the connecting head 44 and the connecting block 42 through the second bolt 43. The outer wall of the second bolt 43 is rotatably connected to the connecting head 44;

[0047] In the embodiment of the present invention, when the device starts to adjust the angle, the base 41 of the driving assembly 4 supports the support rod 46. The output end of the oil cylinder 45 on one support rod 46 provides power to drive the connecting head 44 to move. The connecting block 42 and the connecting head 44 are connected by the second bolt 43. The movement of the connecting head 44 drives the connecting block 42 to move. The movement of the connecting block 42 drives the rotary table housing 1 to rotate and adjust the angle. At the same time, the oil cylinder 45 on the other support rod 46 contracts synchronously. The contraction of the oil cylinder 45 drives the connecting block 42 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 invention, rather than to limit it; although the present invention 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 invention.

Claims

1. An adjustable multifunctional turntable for a coal mining machine, comprising a turntable housing (1), characterized in that: An automatically locking limit locking assembly (2) is installed on the turntable housing (1); The limiting and locking assembly (2) comprises a limiting device (21) and a locking device (22); the turntable housing (1) is connected to the limiting device (21), and the limiting device (21) is connected to the locking device (22); The turntable housing (1) is provided with a shaft sleeve assembly (3) which is easy to assemble and reduces wear; A driving assembly (4) for driving the device to operate is installed on the turntable housing (1), and the driving assembly (4) is connected to the limiting device (21).

2. The adjustable multifunctional rotary table for coal mining machine according to claim 1, characterized in that: The limiting device (21) comprises a rotating shaft (211), a slot hole (212), a limiting slot (213), a limiting rod (214) and a turntable (215); the inner wall of the turntable housing (1) is rotatably connected to the rotating shaft (211); the upper end of the rotating shaft (211) is provided with a slot hole (212); the left side of the upper end of the turntable housing (1) is provided with a limiting slot (213); the limiting slot (213) is communicated with the slot hole (212); the bottom of the slot hole (212) is rotatably connected to the turntable (215); the right end of the turntable (215) is fixedly connected to one end of the limiting rod (214); the other end of the limiting rod (214) is fixedly connected to the turntable housing (1); and the limiting rod (214) is slidably connected in the limiting slot (213).

3. The adjustable multifunctional rotary table for coal mining machine according to claim 2, characterized in that: The rotating shaft 1 (211) is connected to the driving assembly (4).

4. The adjustable multifunctional rotary table for coal mining machine according to claim 3, characterized in that: The rotating disk (215) is connected to the locking device (22).

5. The adjustable multifunctional rotary table for coal mining machine according to claim 4, characterized in that: The locking device (22) comprises a U-shaped groove (221), a limiting slide groove (222), a limiting slider (223), a sleeve rod (224), a clamping block (225), a support platform (226) and a second rotating shaft (227); the upper four sides of the turntable (215) are provided with U-shaped grooves (221) at equal intervals; the upper four sides of the turntable housing (1) are provided with limiting slide grooves (222); the limiting sliders (223) are slidably connected in the limiting slide grooves (222); the limiting sliders (223) are slidably connected in the limiting slide grooves (222); the limiting sliders (22 3) The outer wall is slidably connected with a sleeve rod (224), the lower end of the sleeve rod (224) is in contact with the inner bottom of the U-shaped groove (221), the upper end of the sleeve rod (224) is fixedly connected with one end of the clamping block (225) close to the U-shaped groove (221), the upper end of the rotating shaft 1 (211) is fixedly connected with a pair of support platforms (226) on four sides, the opposite ends of the pair of support platforms (226) are rotatably connected with the rotating shaft 2 (227), and the outer wall of the rotating shaft 2 (227) is fixedly connected with the clamping block (225).

6. The adjustable multifunctional rotary table for coal mining machine according to claim 5, characterized in that: The shaft sleeve assembly (3) which is easy to assemble comprises a second limiting groove (31), a shaft sleeve (32), an ear seat (33), a first bolt (34) and a nut (35); a pair of ear seats (33) are fixedly connected to the left end of the turntable housing (1); a second limiting groove (31) is provided in the ear seat (33); a shaft sleeve (32) is slidably connected in the second limiting groove (31); the opposite ends of the pair of shaft sleeves (32) are fixedly connected to the ear seats (33) by a first bolt (34); and the opposite ends of the shaft sleeves (32) are threadedly connected to the nut (35).

7. The adjustable multifunctional rotary table for coal mining machine according to claim 6, characterized in that: The shaft sleeve (32) is made of metal material.

8. The adjustable multifunctional rotary table for coal mining machine according to claim 7, characterized in that: The driving assembly (4) comprises a base (41), a connecting block (42), a second bolt (43), a connecting head (44), a cylinder (45) and a supporting rod (46); the lower end of the first rotating shaft (211) is fixedly connected to the base (41); a pair of supporting rods (46) are fixedly connected to the right side of the upper end of the base (41); the upper ends of the supporting rods (46) are rotatably connected to the cylinder (45); the output end of the cylinder (45) is fixedly connected to the connecting head (44); the front and rear ends of the turntable housing (1) are respectively fixedly connected to the connecting blocks (42); the connecting block (42) connects the connecting head (44) to the connecting block (42) through the second bolt (43); and the outer wall of the second bolt (43) is rotatably connected to the connecting head (44).

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