Split type scraper chain wheel convenient to disassemble, assemble and exchange

Abstract

The utility model provides a split type scraper chain wheel convenient to disassemble, assemble and exchange, and relates to the field of chain wheels. The split type scraper chain wheel convenient to disassemble, assemble and exchange comprises a rotating shaft, two chain wheel mechanisms are arranged on the surface of the rotating shaft, each chain wheel mechanism comprises a semicircular chain wheel, chain wheel teeth which are circumferentially arranged are arranged on the surface of each semicircular chain wheel, and a positioning mechanism for positioning the semicircular chain wheels is arranged on the surface of the rotating shaft. The positioning mechanism comprises an inner fixing ring and an outer fixing cover, and the surface of the semicircular chain wheel is fixedly connected with an inner semi-ring and an outer semi-ring. According to the split type scraper chain wheel convenient to disassemble, assemble and interchange, the inner half ring and the outer half ring are fixed through the inner fixing ring and the outer fixing cover, then the two semicircular chain wheels are fixed, the installation and disassembly difficulty of the semicircular chain wheels is reduced, the two semicircular chain wheels and the chain wheel teeth are combined to form the chain wheel, and when the teeth are damaged, the chain wheel is not damaged. Corresponding sprocket teeth can be simply replaced, so that the maintenance difficulty of the sprocket is reduced.

Description

Technical Field

[0001] The utility model relates to a split sprocket, in particular to a split scraper sprocket which is easy to disassemble, assemble and interchange, and belongs to the technical field of sprockets. Background Art

[0002] A sprocket is a wheel with cog-like sprocket teeth that mesh with precisely spaced segments on link chains or cables. Sprockets are widely used in mechanical transmissions in industries such as the chemical industry, textile machinery, escalators, woodworking, parking garages, agricultural machinery, food processing, instrumentation, and the petroleum industry. A scraper conveyor is a continuous transport device that uses a moving scraper chain to move bulk materials.

[0003] The utility model with patent number CN211003147U discloses a scraper sprocket, including half teeth and a hub, the two half teeth are arranged on the outer circle of the hub, the outer inner holes of the two half teeth are welded to the hub, the teeth are welded into one piece by two half teeth, the half teeth are precisely forged to avoid the problem of high cost of processing chain nests, the hub is blanked with thick-walled seamless steel pipes, the thick-walled seamless steel pipes are blanked, the material utilization rate is high, the cost is low, the forging cost and casting defects are solved, the welding performance is good, and the overall tempering treatment after welding with the half teeth is carried out, and the core mechanical properties are good.

[0004] At present, the head sprocket of the scraper in the coal preparation plant is integrated with the intermediate shaft, bearing seat and pair of wheels. Although the sprocket in the above patent has good performance, when the sprocket needs to be replaced after being worn, it needs to be disassembled as a whole before the new sprocket can be installed, which will cause waste, time and labor. To this end, we provide a split scraper sprocket that is easy to disassemble and interchange to solve the above problems. Utility Model Content

[0005] (1) Technical problems solved

[0006] The purpose of the present invention is to provide a split scraper sprocket that is easy to disassemble and interchange in order to solve the above problems, so as to solve the problem that the sprocket replacement is relatively complicated in the comparative documents.

[0007] (2) Technical solution

[0008] The utility model is realized through the following technical solutions: a split type scraper sprocket which is easy to disassemble and interchange.

[0009] It includes a rotating shaft, and two sets of sprocket mechanisms are provided on the surface of the rotating shaft. The sprocket mechanism includes a semicircular sprocket, and the surface of the semicircular sprocket is provided with circumferentially arranged sprocket teeth. The surface of the rotating shaft is provided with a positioning mechanism for positioning the semicircular sprocket, and the positioning mechanism includes an inner fixing ring and an outer fixing cover. The surface of the semicircular sprocket is fixedly connected with an inner semi-ring and an outer semi-ring, and the inner semi-ring is slidably connected to the inner fixing ring, and the outer fixing cover is slidably connected to the outer semi-ring.

[0010] Preferably, a first limit block is fixedly connected to the surface of the rotating shaft, a first limit groove is provided on the inner wall of the semicircular sprocket, and the first limit block is plugged into the first limit groove. The semicircular sprocket is limited by the first limit block and the first limit groove to prevent the semicircular sprocket from slipping.

[0011] Preferably, a clamping block is fixedly connected to the surface of the semicircular sprocket, and a clamping groove adapted to the clamping block is opened on the surface of the semicircular sprocket. The clamping block is inserted into the clamping groove of another semicircular sprocket to connect the two semicircular sprockets together.

[0012] Preferably, the surface of the semicircular sprocket is fixedly connected to a fixing seat, and the sprocket teeth are slidably connected to the fixing seat. A fastening bolt for fixing the sprocket teeth is slidably provided inside the fixing seat, and the sprocket teeth are fixed to the surface of the fixing seat through the fastening bolt.

[0013] Preferably, a second limit block is fixedly connected to the surface of the inner half ring, a second limit groove is opened inside the inner fixed ring, and the second limit block is plugged into the second limit groove. The inner half ring is fixed inside the inner fixed ring by inserting two groups of second limit blocks into the second limit groove.

[0014] Preferably, a third limit block is fixedly connected to the surface of the rotating shaft, and the third limit block is plugged into the outer fixed cover. A connecting screw is fixedly connected to the surface of the inner fixed ring, and the connecting screw passes through the semicircular sprocket and the outer fixed cover in sequence. Through the third limit block, the rotating shaft can drive the outer fixed cover to rotate.

[0015] Preferably, the surface of the connecting screw is threadedly connected with a fixing nut, and the fixing nut and the outer fixing cover are in conflict with each other. The surface of the outer fixing cover is provided with a limiting fork for limiting the fixing nut. The inner fixing ring, the semicircular sprocket and the outer fixing cover are connected together through the connecting screw.

[0016] Preferably, a fixing screw is sleeved on the middle part of the limit fork, and the fixing screw is threadedly connected to the outer fixing cover. The limit fork is reinforced for the second time by the fixing screw, thereby improving the fixing strength of the limit fork on the fixing nut.

[0017] The utility model provides a split type scraper sprocket that is easy to disassemble and interchange, and has the following beneficial effects:

[0018] 1. The split type scraper sprocket is easy to disassemble and interchange. The sprocket is formed by combining two semicircular sprockets and sprocket teeth. When the teeth are damaged, simply replace the corresponding sprocket teeth, which reduces the difficulty of sprocket maintenance and reduces resource waste. The inner half ring and the outer half ring are fixed by the inner fixing ring and the outer fixing cover, and then the two semicircular sprockets are fixed, which reduces the difficulty of installing and disassembling the semicircular sprockets and improves the replacement efficiency of the split sprocket.

[0019] 2. The split type scraper sprocket is easy to disassemble and interchange. The semicircular sprocket is limited by the first limit block and the first limit groove to prevent the semicircular sprocket from slipping. The clamping block is inserted into the clamping groove of the other semicircular sprocket to connect the two semicircular sprockets together. The sprocket teeth are positioned through the fixed seat. The sprocket teeth are fixed to the surface of the fixed seat by tightening bolts. The inner half ring is fixed inside the inner fixed ring by inserting the second limit block into the second limit groove through two sets of second limit blocks.

[0020] 3. Use the third limit block to fix and position the outer fixed cover so that the rotating shaft can drive the outer fixed cover to rotate. Use the connecting screws to connect the inner fixed ring, the semicircular sprocket and the outer fixed cover together. Use the fixing nut to fix the connecting screws. Use the limit fork to position the fixing nut to prevent the outer fixed cover from loosening when the sprocket rotates. Use the fixing screw to reinforce the limit fork for a second time to increase the fixing force of the limit fork on the fixing nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is an exploded schematic diagram of the sprocket mechanism structure of the utility model;

[0023] Figure 3 This is an exploded schematic diagram of the sprocket tooth structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the positioning mechanism structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the limit fork structure of the utility model.

[0026]

Main component symbol description

[0027] 1. Rotating axis;

[0028] 2. Sprocket mechanism; 201. Semicircular sprocket; 202. First limiting block; 203. First limiting slot; 204. Clamping block; 205. Clamping slot; 206. Sprocket teeth; 207. Fixing seat; 208. Fastening bolt;

[0029] 3. Positioning mechanism; 301. Inner fixing ring; 302. Second limiting groove; 303. Inner half ring; 304. Second limiting block; 305. Outer half ring; 306. Outer fixing cover; 307. Third limiting block; 308. Connecting screw; 309. Fixing nut; 310. Limiting fork; 311. Fixing screw. DETAILED DESCRIPTION

[0030] The embodiment of the utility model provides a split scraper sprocket which is easy to disassemble, assemble and interchange.

[0031] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , including a rotating shaft 1, two sets of sprocket mechanisms 2 are provided on the surface of the rotating shaft 1, the sprocket mechanism 2 includes a semicircular sprocket 201, and the surface of the semicircular sprocket 201 is provided with circumferentially arranged sprocket teeth 206. The sprocket is formed by combining the two semicircular sprockets 201 and the sprocket teeth 206. When the teeth are damaged, simply replace the corresponding sprocket teeth 206, which reduces the difficulty of sprocket maintenance and reduces resource waste.

[0032] A first limiting block 202 is fixedly connected to the surface of the rotating shaft 1, and a first limiting groove 203 is provided on the inner wall of the semicircular sprocket 201, and the first limiting block 202 is plugged into the first limiting groove 203. The semicircular sprocket 201 is limited by the first limiting block 202 and the first limiting groove 203 to prevent the semicircular sprocket 201 from slipping when the rotating shaft 1 drives the semicircular sprocket 201 to rotate, thereby improving the stability of the sprocket transmission.

[0033] A clamping block 204 is fixedly connected to the surface of the semicircular sprocket 201, and a clamping groove 205 adapted to the clamping block 204 is opened on the surface of the semicircular sprocket 201. The clamping block 204 is inserted into the clamping groove 205 of another semicircular sprocket 201 to connect the two semicircular sprockets 201 together, thereby improving the stability and firmness of the sprocket combination.

[0034] The surface of the semicircular sprocket 201 is fixedly connected to a fixing seat 207, and the sprocket teeth 206 are slidably connected to the fixing seat 207. The inside of the fixing seat 207 is slidably provided with a fastening bolt 208 for fixing the sprocket teeth 206. The sprocket teeth 206 are positioned by the fixing seat 207, and the sprocket teeth 206 are fixed to the surface of the fixing seat 207 by the fastening bolt 208. When the sprocket teeth 206 are damaged, it is convenient to replace new sprocket teeth 206.

[0035] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4The surface of the rotating shaft 1 is provided with a positioning mechanism 3 for positioning the semicircular sprocket 201. The positioning mechanism 3 includes an inner fixing ring 301 and an outer fixing cover 306. The surface of the semicircular sprocket 201 is fixedly connected with an inner semi-ring 303 and an outer semi-ring 305. The inner semi-ring 303 is slidably connected to the inner fixing ring 301, and the outer fixing cover 306 is slidably connected to the outer semi-ring 305. The inner semi-ring 303 and the outer semi-ring 305 are fixed by the inner fixing ring 301 and the outer fixing cover 306, and then the two semicircular sprockets 201 are fixed, reducing the difficulty of installing and disassembling the semicircular sprocket 201 and improving the efficiency of replacing the split sprocket.

[0036] The surface of the inner half ring 303 is fixedly connected with a second limit block 304, and the interior of the inner fixed ring 301 is provided with a second limit groove 302, and the second limit block 304 is plugged into the second limit groove 302. By inserting two groups of second limit blocks 304 into the interior of the second limit groove 302, the inner half ring 303 is fixed inside the inner fixed ring 301, preventing the inner fixed ring 301 from slipping randomly, and improving the stability of the connection between the inner fixed ring 301 and the semicircular sprocket 201.

[0037] The surface of the rotating shaft 1 is fixedly connected with a third limit block 307, and the third limit block 307 is plugged into the outer fixing cover 306. The surface of the inner fixing ring 301 is fixedly connected with a connecting screw 308, and the connecting screw 308 passes through the semicircular sprocket 201 and the outer fixing cover 306 in sequence. The outer fixing cover 306 is fixed and positioned by the third limit block 307, so that the rotating shaft 1 can drive the outer fixing cover 306 to rotate, thereby improving the stability of the operation of the outer fixing cover 306. The third limit block 307 facilitates the outer fixing cover 306 and the outer half ring 305 to be sleeved together. The inner fixing ring 301, the semicircular sprocket 201 and the outer fixing cover 306 are connected together by the connecting screw 308, thereby improving the fixing ability of the inner fixing ring 301 and the outer fixing cover 306 to the two semicircular sprockets 201, thereby improving the stability of the sprocket operation.

[0038] The surface of the connecting screw 308 is threadedly connected with a fixing nut 309, and the fixing nut 309 conflicts with the outer fixing cover 306. A limiting fork 310 is provided on the surface of the outer fixing cover 306 to limit the fixing nut 309. The connecting screw 308 is fixed by the fixing nut 309, thereby improving the fixing ability of the connecting screw 308 to the inner fixing ring 301 and the outer fixing cover 306. The fixing nut 309 is positioned by the limiting fork 310 to prevent the vibration generated by the sprocket transmission from causing the fixing nut 309 to rotate, thereby preventing the outer fixing cover 306 from loosening when the sprocket rotates, thereby improving the stability of the sprocket operation.

[0039] A fixing screw 311 is sleeved on the middle of the limiting fork 310 , and the fixing screw 311 is threadedly connected to the outer fixing cover 306 . The fixing screw 311 is used to reinforce the limiting fork 310 for a second time, thereby improving the fixing force of the limiting fork 310 on the fixing nut 309 .

[0040] When the utility model is in use, the inner fixing ring 301 is first sleeved on the surface of the rotating shaft 1, and then the two semicircular sprockets 201 are limited through the first limiting block 202 and the first limiting groove 203, and then the inner fixing ring 301 is slid and sleeved on the surface of the inner semi-ring 303, and the two semi-circular sprockets 201 are installed on the surface of the rotating shaft 1, and then the outer fixing cover 306 is sleeved on the surface of the outer semi-ring 305, and the outer fixing cover 306 is limited by the third limiting block 307, and at the same time, the inner fixing ring 301, the semi-circular sprocket 201 and the outer fixing cover 306 are connected together by rotating the fixing nut 309 on the surface of the connecting screw 308, and then the sliding limiting The fork 310 limits the two fixing nuts 309, and the limiting fork 310 is reinforced for the second time by the fixing screw 311. When the sprocket teeth are damaged, the sprocket teeth 206 can be replaced by removing the fastening bolts 208. When the sprocket is damaged, first remove the fixing nut 309, and then rotate to remove the fixing nut 309, and at the same time move the inner fixing ring 301 and the outer fixing cover 306 outward to complete the split sprocket replacement. Through the above device, when the teeth are damaged, the teeth are replaced, and when the sprocket is damaged, the sprocket is replaced. There is no need to replace the overall head sprocket assembly, which saves material costs, reduces the labor intensity of employees, and is beneficial to production and maintenance.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A split type scraper sprocket that is easy to disassemble and interchange, comprising a rotating shaft (1), characterized in that: The surface of the rotating shaft (1) is provided with two groups of sprocket mechanisms (2), the sprocket mechanisms (2) comprising a semicircular sprocket (201), the surface of the semicircular sprocket (201) being provided with sprocket teeth (206) arranged circumferentially, the surface of the rotating shaft (1) being provided with a positioning mechanism (3) for positioning the semicircular sprocket (201), the positioning mechanism (3) comprising an inner fixing ring (301) and an outer fixing cover (306), the surface of the semicircular sprocket (201) being fixedly connected with an inner semi-ring (303) and an outer semi-ring (305), the inner semi-ring (303) being slidably connected to the inner fixing ring (301), and the outer fixing cover (306) being slidably connected to the outer semi-ring (305).

2. The split type scraper sprocket that is easy to disassemble and interchange according to claim 1 is characterized in that: A first limiting block (202) is fixedly connected to the surface of the rotating shaft (1); a first limiting groove (203) is provided on the inner wall of the semicircular sprocket (201); and the first limiting block (202) is plugged into the first limiting groove (203).

3. The split type scraper sprocket that is easy to disassemble and interchange according to claim 1 is characterized in that: A clamping block (204) is fixedly connected to the surface of the semicircular sprocket (201), and a clamping groove (205) adapted to the clamping block (204) is provided on the surface of the semicircular sprocket (201).

4. The split-type scraper sprocket that is easy to disassemble and interchange according to claim 1 is characterized in that: The surface of the semicircular sprocket (201) is fixedly connected with a fixing seat (207), and the sprocket teeth (206) are slidably connected to the fixing seat (207). A fastening bolt (208) for fixing the sprocket teeth (206) is slidably provided inside the fixing seat (207).

5. The split type scraper sprocket that is easy to disassemble and interchange according to claim 1 is characterized in that: A second limiting block (304) is fixedly connected to the surface of the inner half ring (303), a second limiting groove (302) is provided inside the inner fixed ring (301), and the second limiting block (304) is plugged into the second limiting groove (302).

6. The split type scraper sprocket that is easy to disassemble and interchange according to claim 1 is characterized in that: A third limit block (307) is fixedly connected to the surface of the rotating shaft (1), and the third limit block (307) is plugged into the outer fixed cover (306). A connecting screw (308) is fixedly connected to the surface of the inner fixed ring (301), and the connecting screw (308) passes through the semicircular sprocket (201) and the outer fixed cover (306) in sequence.

7. The split-type scraper sprocket that is easy to disassemble and interchange according to claim 6 is characterized in that: The surface of the connecting screw (308) is threadedly connected with a fixing nut (309), and the fixing nut (309) and the outer fixing cover (306) are in conflict with each other. The surface of the outer fixing cover (306) is provided with a limiting fork (310) for limiting the fixing nut (309).

8. The split-type scraper sprocket that is easy to disassemble and interchange according to claim 7 is characterized in that: A fixing screw (311) is sleeved on the middle portion of the limiting fork (310), and the fixing screw (311) is threadedly connected to the outer fixing cover (306).

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