Traction chain wheel structure of coal mining machine

Abstract

The utility model discloses a traction chain wheel structure of a coal mining machine, and relates to the technical field of chain wheels. The device comprises a rotating shaft, a plurality of sliding grooves are formed in the outer surface of the rotating shaft, a connecting ring is fixedly connected to the outer surface of the rotating shaft, and inserting rods are fixedly connected to the left side and the right side of the connecting ring. By arranging the mounting and dismounting assembly, specifically, after the positioning ring and the gear ring are tightly attached to the connecting ring, the rotating block is rotated, the rotating block drives the limiting ball to be separated from the interior of the groove in the surface of the inserting rod when rotating, and when the limiting ball is driven to the position of the limiting hole in the surface of the positioning ring, the rotating block is rotated; the elastic force generated by the spring in a pressed state pushes the limiting ball to move into the limiting hole, and the rotating block and the inserting rod are staggered, so that the positioning ring cannot be taken out, the replaced gear ring is fixed, good meshing between the chain wheel and the chain can be recovered without replacing the whole chain wheel, effective transmission of traction force is ensured, and the service life of the chain wheel is prolonged. Therefore, the cost of chain wheel replacement and maintenance is saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sprocket technical field, especially, relate to a coal winning machine traction sprocket structure. BACKGROUND

[0002] Sprocket is a kind of wheel with embedded tooth type chain tooth, to be engaged with pitch accurate block on chain ring or cable, sprocket is widely used in chemical industry, textile machinery, escalator, wood processing, stereo parking garage, agricultural machinery, food processing, instrument, petroleum and other industries, such as mechanical transmission, traction sprocket is the key component in the working process of coal winning machine.

[0003] Under the adverse working conditions and complex alternating load in pit, the service life of sprocket will be affected, especially the sprocket surface tooth is seriously worn under long time working operation, and the tooth wear will lead to the poor engagement between sprocket and chain, and then reduce the traction efficiency, reduce the working efficiency, the general sprocket structure considers the stability and sets the overall structure form, when tooth is seriously worn, the whole sprocket needs to be replaced, which not only reduces the working efficiency of coal winning, and also increases the cost of sprocket maintenance, therefore, we propose a coal winning machine traction sprocket structure. UTILITY MODEL CONTENT

[0004] The utility model discloses a coal winning machine traction sprocket structure, through setting up and dismounting subassembly, the tooth ring of replacement is fixed, and the good engagement between sprocket and chain can be restored without replacing the whole sprocket, so as to ensure the effective transmission of traction force, save the cost of sprocket replacement and maintenance, and solve the problems that the general sprocket structure considers the stability and sets the overall structure form, tooth is seriously worn, the whole sprocket needs to be replaced, which not only reduces the working efficiency of coal winning, and also increases the cost of sprocket maintenance.

[0005] To solve the above technical problems, the utility model is realized through the following technical schemes:

[0006] The utility model discloses a coal winning machine traction sprocket structure, including the pivot, the outer surface of pivot is equipped with a plurality of grooves, the outer surface of pivot is fixedly connected with the connecting ring, the left side and the right side of connecting ring are fixedly connected with the plug rod,

[0007] The outer surface of the rotating shaft is provided with two mounting and dismounting assemblies, the two mounting and dismounting assemblies are symmetrically arranged with the connecting ring as the center, the mounting and dismounting assembly comprises a gear ring which is slidably connected to the outer surface of the rotating shaft, a tooth shape curve in the shape of a gear tooth on the surface of the gear ring and a chain socket curved surface, the optimization design of the chain wheel body is realized, the side of the gear ring away from the connecting ring is provided with a positioning ring, the inside of the positioning ring is provided with a through hole, the inner wall of the through hole is slidably connected with the outer surface of the inserting rod, the end of the inserting rod away from the connecting ring is provided with a rotating block, the side of the rotating block close to the inserting rod is provided with a placing groove, the inner wall of the placing groove is slidably connected with a limiting ball, the end of the limiting ball away from the inserting rod is fixedly connected with a spring, the side of the positioning ring close to the rotating block is provided with a plurality of limiting holes, the rotating block is rotated, at this time, the rotating block and the inserting rod are out of position, therefore, the positioning ring cannot be taken out, so that the replaced gear ring is fixed, the good meshing between the chain wheel and the chain can be restored without replacing the whole chain wheel, so that the effective transmission of the traction force is ensured, thereby saving the cost of chain wheel replacement and maintenance.

[0008] Further, the inner walls of the plurality of limiting holes are in arc shape, the side of the inserting rod close to the limiting ball is provided with a groove, and the end of the spring away from the limiting ball is fixedly connected with the inner wall of the placing groove of the rotating block, the groove on the surface of the inserting rod can stabilize the limiting ball inside, so that the inserting rod and the rotating block are aligned.

[0009] Further, the side of the inserting rod close to the rotating block is provided with a limiting groove, and the inner wall of the limiting groove is rotatably connected with a connecting block, and the side of the connecting block away from the limiting groove is fixedly connected with the side wall of the rotating block, by arranging the connecting block, the connecting block is connected with the inserting rod without affecting the rotation.

[0010] Further, the side of the inserting rod close to the rotating block is provided with a limiting groove, and the inner wall of the limiting groove is rotatably connected with a connecting block, and the side of the connecting block away from the limiting groove is fixedly connected with the side wall of the rotating block, by arranging the connecting block, the connecting block is connected with the inserting rod without affecting the rotation.

[0011] Further, the side of the inserting rod close to the rotating block is provided with a limiting groove, and the inner wall of the limiting groove is rotatably connected with a connecting block, and the side of the connecting block away from the limiting groove is fixedly connected with the side wall of the rotating block, by arranging the connecting block, the connecting block is connected with the inserting rod without affecting the rotation.

[0012] Further, the outer surface of the left protective shell is fixedly connected with two insertion blocks, the right side of each of the two insertion blocks is provided with a screw, one end of each of the two screws is fixedly connected with the outer surface of the right protective shell, and the end of each of the two screws away from the protective shell is threadedly connected with a nut.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model discloses a dismounting assembly, when the positioning ring and the tooth ring are closely attached to the connecting ring, the rotating block is rotated, the rotating block drives the limiting ball to separate from the recess on the surface of the insertion rod when rotating, when the limiting ball is driven to the position of the limiting hole on the surface of the positioning ring, the spring generates elastic force under pressure and pushes the limiting ball to move to the inside of the limiting hole, at this time, the rotating block is dislocated with the insertion rod, so that the positioning ring cannot be taken out, thereby fixing the replaced tooth ring, the whole sprocket does not need to be replaced, and good meshing between the sprocket and the chain can be restored, thereby ensuring effective transmission of traction force, and the cost of sprocket replacement and maintenance is saved.

[0015] 2. The utility model discloses a protective assembly, when the sidewalls of the two protective shells are attached, the nut is rotated in the direction of the arrow to fix the insertion block, at this time, the two protective shells cannot be separated, the protective shell is arranged on the surface of the sprocket, when the chain is running, the chain is prevented from separating from the inside of the tooth ring, the rotating wheel is arranged in the inside of the rotating wheel on the two sides, when the chain is transmitted on the surface of the sprocket, lubricating oil is applied to the surface of the rotating wheel, when the chain contacts the rotating wheel, the rotating wheel lubricates the surface of the chain, thereby reducing the abrasion between the chain and the surface of the sprocket.

[0016] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages mentioned above. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the rotating shaft structure schematic diagram of the utility model;

[0020] Figure 3 It is the rotating block structure schematic diagram of the utility model;

[0021] Figure 4 It is the positioning ring structure schematic view of the utility model;

[0022] Figure 5 It is the tooth ring structure schematic view of the utility model;

[0023] Figure 6 It is the anti-drop assembly structure schematic view of the utility model;

[0024] Figure 7 It is the plug block structure schematic view of the utility model.

[0025] In the drawings, the component list represented by each sign is as follows:

[0026] 1, the rotating shaft; 101, the sliding groove; 102, the connecting ring; 103, the plug rod; 2, the installation and disassembly assembly; 201, the tooth ring; 202, the positioning ring; 203, the through hole; 204, the limiting hole; 205, the rotating block; 206, the limiting ball; 207, the spring; 301, the connecting block; 302, the ring groove; 4, the anti-drop assembly; 401, the protective shell; 402, the rotating wheel; 403, the plug block; 404, the screw; 405, the nut. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the utility model.

[0028] Please refer to Figures 1-7 The utility model discloses a coal cutter traction chain wheel structure, including the rotating shaft 1, the outer surface of rotating shaft 1 is set with a plurality of sliding grooves 101, the outer surface of rotating shaft 1 is fixedly connected with the connecting ring 102, the left side and the right side of connecting ring 102 are fixedly connected with plug rod 103;

[0029] The outer surface of the rotating shaft 1 is provided with two mounting and dismounting assemblies 2, which are symmetrically arranged around the connecting ring 102. The mounting and dismounting assembly 2 comprises a tooth ring 201 slidably connected to the outer surface of the rotating shaft 1. The side of the tooth ring 201 away from the connecting ring 102 is provided with a positioning ring 202. The inner part of the positioning ring 202 is provided with a through hole 203. The inner wall of the through hole 203 is slidably connected to the outer surface of the insertion rod 103. The end of the insertion rod 103 away from the connecting ring 102 is provided with a rotating block 205. The side of the rotating block 205 close to the insertion rod 103 is provided with a placing groove. The inner wall of the placing groove is slidably connected to a limiting ball 206. The end of the limiting ball 206 away from the insertion rod 103 is fixedly connected to a spring 207. The side of the positioning ring 202 close to the rotating block 205 is provided with a plurality of limiting holes 204. By arranging the mounting and dismounting assembly 2, when the positioning ring 202 and the tooth ring 201 are tightly attached to the connecting ring 102, the rotating block 205 is rotated, and the rotating block 205 drives the limiting ball 206 to separate from the groove on the surface of the insertion rod 103. When the limiting ball 206 is driven to the position of the limiting hole 204 on the surface of the positioning ring 202, the spring 207 generates a spring force to push the limiting ball 206 to move into the limiting hole 204 under pressure. At this time, the rotating block 205 is misaligned with the insertion rod 103, so the positioning ring 202 cannot be removed, thereby fixing the replaced tooth ring 201. The entire sprocket does not need to be replaced to restore the good meshing between the sprocket and the chain, thereby ensuring the effective transmission of the traction force and saving the cost of sprocket replacement and maintenance.

[0030] The inner walls of the plurality of limiting holes 204 are arc-shaped. The side of the insertion rod 103 close to the limiting ball 206 is provided with a groove. The end of the spring 207 away from the limiting ball 206 is fixedly connected to the inner wall of the placing groove of the rotating block 205.

[0031] The side of the insertion rod 103 close to the rotating block 205 is provided with a limiting groove. The inner wall of the limiting groove is rotatably connected to a connecting block 301. The side of the connecting block 301 away from the limiting groove is fixedly connected to the side wall of the rotating block 205.

[0032] The side of each of the two positioning rings 202 away from the connecting ring 102 is provided with a ring groove 302. The outer surfaces of the two positioning rings 202 are provided with an anti-disengagement assembly 4. The anti-disengagement assembly 4 comprises two protective shells 401.

[0033] The side walls of the two protective shells 401 are rotatably connected to the inner walls of the ring grooves 302. The inner walls of the two protective shells 401 are rotatably connected to a plurality of rotating wheels 402.

[0034] The outer surface of the protective shell 401 on the left side is fixedly connected to two insertion blocks 403. The right sides of the two insertion blocks 403 are provided with screws 404.

[0035] One end of the two screws 404 is fixedly connected with the outer surface of the right protective shell 401, and the other end of the two screws 404 is threadedly connected with a nut 405, by arranging the protection assembly 4, specifically when the sidewalls of the protective shells 401 on both sides are attached, the nut 405 is rotated along the arrow direction to fix the insertion block 403, at this time, the protective shells 401 on both sides cannot be separated, the protective shell 401 is placed on the surface of the chain wheel, when the chain is running, the chain is prevented from separating from the inside of the tooth ring 201, the rotating wheel 402 is arranged in the inside of the rotating wheel 402, when the chain is transmitted on the surface of the chain wheel, the surface of the rotating wheel 402 is smeared with lubricating oil, when the chain contacts the rotating wheel 402, the rotating wheel 402 lubricates the surface of the chain, thereby reducing the wear between the chain and the teeth on the surface of the chain wheel.

[0036] One specific application of the embodiment is that after the chain wheel is used for a long time, the seriously worn teeth on the surface thereof need to be replaced, the new tooth ring 201 is aligned with the sliding groove 101 on the surface of the rotating shaft 1, is put in from one side, the insertion rod 103 on one side of the connecting ring 102 passes through the inner wall of the tooth ring 201, the tooth shape curve on the surface of the tooth ring 201 and the chain nest curved surface realize the optimization design of the chain wheel body, the tooth ring 201 is also put into the rotating shaft 1 on the other side of the connecting ring 102 and is attached to the sidewall of the connecting ring 102, after the tooth ring 201 is placed in position, the positioning ring 202 is then installed on the surface of the rotating shaft 1 in the same way as the rotating shaft 1, when the positioning ring 202 and the tooth ring 201 are closely attached to the connecting ring 102, the rotating block 205 is rotated, the rotating block 205 drives the limiting ball 206 to separate from the recess on the surface of the insertion rod 103 when rotating, and the spring 207 is extruded by the limiting ball 206 to generate elastic force, as the rotating block 205 continues to rotate, when the limiting ball 206 is driven to the position of the limiting hole 204 on the surface of the positioning ring 202, the elastic force generated by the spring 207 under pressure pushes the limiting ball 206 to move into the limiting hole 204, at this time, the rotating block 205 is misaligned with the insertion rod 103, so the positioning ring 202 cannot be taken out, thereby fixing the replaced tooth ring 201, without replacing the entire chain wheel, the good meshing between the chain wheel and the chain can be restored, thereby ensuring the effective transmission of the traction force, thereby saving the cost of replacing and maintaining the chain wheel, and different numbers of teeth can be replaced, and the transmission ratio between the chain wheel and the chain can be adjusted.

[0037] After the tooth ring 201 is installed, the two protective shells 401 are clamped inside the ring groove 302 of the sidewall of the positioning ring 202, and one side of the protective shell 401 is provided with an insertion block 403 which is connected with the screw 404 provided on the other side of the protective shell 401, when the sidewalls of the two protective shells 401 are adhered, the insertion block 403 is fixed by rotating the nut 405, at this time, the two protective shells 401 cannot be separated, the protective shell 401 is arranged on the surface of the chain wheel, when the chain is running, the chain is prevented from separating from the inside of the tooth ring 201, the rotating wheel 402 is arranged in the inside of the rotating wheel 402, when the chain is transmitted on the surface of the chain wheel, the surface of the rotating wheel 402 is smeared with lubricating oil, when the chain contacts with the rotating wheel 402, the surface of the chain is lubricated by the rotating wheel 402, so as to reduce the abrasion between the chain and the gear teeth on the surface of the chain wheel.

[0038] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiments or examples are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that the skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A coal mining machine traction chain wheel structure, comprising a rotating shaft (1), a plurality of sliding grooves (101) are formed on the outer surface of the rotating shaft (1), and a connecting ring (102) is fixedly connected to the outer surface of the rotating shaft (1), characterized in that, The left side and the right side of the connecting ring (102) are fixedly connected with an insertion rod (103); The outer surface of the rotating shaft (1) is provided with two installation and disassembly assemblies (2), and the two installation and disassembly assemblies (2) are symmetrically arranged with the connecting ring (102) as the center. The installation and disassembly assembly (2) comprises a tooth ring (201) slidably connected to the outer surface of the rotating shaft (1). The side, away from the connecting ring (102), of the tooth ring (201) is provided with a positioning ring (202). The inner portion of the positioning ring (202) is provided with a through hole (203). The inner wall of the through hole (203) is slidably connected with the outer surface of the insertion rod (103). The end, away from the connecting ring (102), of the insertion rod (103) is provided with a rotating block (205). The side, close to the insertion rod (103), of the rotating block (205) is provided with a placing groove. The inner wall of the placing groove is slidably connected with a limiting ball (206). The end, away from the insertion rod (103), of the limiting ball (206) is fixedly connected with a spring (207). The side, close to the rotating block (205), of the positioning ring (202) is provided with a plurality of limiting holes (204).

2. A coal cutter chain wheel structure according to claim 1, characterised in that, The inner wall of each of the limiting holes (204) is in an arc shape. The side, close to the limiting ball (206), of the insertion rod (103) is provided with a groove. The end, away from the limiting ball (206), of the spring (207) is fixedly connected with the inner wall of the placing groove of the rotating block (205).

3. A coal cutter chain wheel structure according to claim 2, characterised in that, The side, close to the rotating block (205), of the insertion rod (103) is provided with a limiting groove. The inner wall of the limiting groove is rotatably connected with a connecting block (301). The side, away from the limiting groove, of the connecting block (301) is fixedly connected with the side wall of the rotating block (205).

4. A coal cutter chain wheel structure according to claim 3, characterised in that, The side, away from the connecting ring (102), of each of the positioning rings (202) is provided with a ring groove (302). The outer surface of each of the positioning rings (202) is provided with an anti-disengagement assembly (4). The anti-disengagement assembly (4) comprises two protective shells (401).

5. A coal cutter chain wheel structure according to claim 4 wherein, The side wall of each of the protective shells (401) is rotatably connected with the inner wall of the ring groove (302). The inner wall of each of the protective shells (401) is rotatably connected with a plurality of rotating wheels (402).

6. A coal cutter chain wheel structure according to claim 5 wherein, The outer surface of the protective shell (401) on the left side is fixedly connected with two insertion blocks (403). The right side of each of the insertion blocks (403) is provided with a screw (404).

7. A coal cutter chain wheel structure according to claim 6 wherein, One end of each of the screws (404) is fixedly connected with the outer surface of the protective shell (401) on the right side. The end, away from the protective shell (401), of each of the screws (404) is threadedly connected with a nut (405).

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