Chain wheel transmission mechanism of scraper conveyor

Abstract

The utility model relates to a chain wheel transmission mechanism of a scraper conveyor, which comprises a pair of chain wheels with the same size, and is characterized in that sleeves are respectively fixed at one ends of the pair of chain wheels, flanges are respectively fixed at the ends of the two sleeves, and the two sleeves are fixedly connected through the flanges, so that the pair of chain wheels are fixed into a whole. One chain wheel in the pair of chain wheels is connected with the output shaft of the speed reducer, the other chain wheel is connected with the blind shaft, and the motor drives the output shaft of the speed reducer so as to drive the whole formed by the pair of chain wheels to achieve stable transmission. The speed reducer is simple in structure, easy to machine, good in stability, integrally firm, free of key rolling faults, convenient to mount and dismount and capable of achieving transmission between the output shaft of the speed reducer and the chain wheel and the blind shaft and improving the working efficiency of a machine.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine machinery and equipment technology, specifically relating to a sprocket transmission mechanism for a scraper conveyor. Background Technology

[0002] The SGB420 / 40T scraper conveyor is widely used in coal mine roadways for transporting coal. Power is transmitted from an electric motor to a hydraulic coupling, which in turn drives the sprocket shaft assembly to rotate, thus rotating the scraper conveyor and transporting coal. The scraper chain is a double-chain type, installed in the upper and lower troughs of the scraper channel (middle trough, transition trough). It wraps around the sprocket shaft assembly or tail roller at the head and tail of the conveyor, forming a closed, endless chain. The rotation of the sprocket shaft assembly drives the scraper chain to move in the middle trough, completing the coal transport. Since both sprockets rotate simultaneously, a carrier is needed to connect them. This carrier is usually two half-rollers, bolted together to form a single drum. The drum is connected by a key in the middle, thus completing the sprocket drive. However, under prolonged heavy loads, even slight loosening of the half-roller bolts or machining errors can cause the half-rollers to not fully engage, resulting in "key rolling" during operation and loss of transmission capacity, leading to conveyor malfunction. Furthermore, the semi-roller manufacturing process is complex, the installation is complicated, and the stability is poor. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a practical, reliable, easy-to-process, and stable sprocket drive mechanism for a scraper conveyor.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a sprocket drive mechanism for a scraper conveyor, comprising a pair of sprockets of the same size, characterized in that: a sleeve is fixed to one end of each pair of sprockets, and flanges are fixed to the ends of the two sleeves respectively; the two sleeves are fixedly connected by the flanges, so that the pair of sprockets are fixed as a whole; one sprocket of the pair of sprockets is connected to the output shaft of a reducer, and the other sprocket is connected to a blind shaft; a motor drives the output shaft of the reducer, thereby driving the whole composed of the pair of sprockets to achieve stable transmission.

[0005] The two sleeves are connected at their ends with male and female interfaces for connection.

[0006] The pair of sprockets and their corresponding sleeves are fixed by welding, and multiple reinforcing ribs are fixed at the weld seam to further strengthen the connection between the sprockets and the sleeves.

[0007] The reinforcing ribs are welded at intervals around the connection between the sprocket and the sleeve.

[0008] The flanges are machined with round holes for connection. Bolts pass through the round holes of the two flanges and are fastened with nuts, flat washers, and spring washers.

[0009] Both sprockets and the shafts they are connected to are splined.

[0010] The advantages of this utility model are: simple structure, easy to process, good stability, solid overall structure and no "rolling key" failure, realizing the transmission between the output shaft of the reducer and the sprocket and blind shaft, convenient installation and disassembly, and improving the working efficiency of the machine. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the present invention;

[0012] In the diagram, 1-sprocket, 2-set, 3-flange, 4-nut, 5-reinforcing rib, 6-flat washer, 7-spring washer, 8-bolt. Detailed Implementation

[0013] like Figure 1 As shown, a sprocket drive mechanism for a scraper conveyor includes a pair of sprockets 1 of the same size. The mechanism is characterized in that: one end of each pair of sprockets 1 is fixed with a sleeve 2, and the ends of the two sleeves 2 are respectively fixed with flanges 3. The two sleeves 2 are fixedly connected via the flanges 3, thus fixing the pair of sprockets 1 into a single unit. One sprocket 1 is connected to the output shaft of a reducer, and the other sprocket 1 is connected to a blind shaft. A motor drives the output shaft of the reducer, thereby driving the entire assembly of the pair of sprockets 1 to achieve stable transmission.

[0014] The two sleeves 2 are connected by machining male and female interfaces for connection.

[0015] The pair of sprockets 1 and the corresponding sleeves 2 are fixed by welding, and multiple reinforcing ribs 5 are fixed at the weld to further strengthen the connection strength between the sprockets 1 and the sleeves 2.

[0016] The reinforcing ribs 5 are welded at intervals around the connection between the sprocket 1 and the sleeve 2.

[0017] The flange 3 is machined with round holes for connection. Bolts 8 pass through the round holes of the two flanges 3 and are fastened with nuts 4, flat washers 6, and spring washers 7.

[0018] The pair of sprockets 1 and the shafts they are connected to are both splined.

[0019] Manufacturing process: A pair of sprockets 1 are welded to sleeves 2 as one piece. Reinforcing ribs 5 are welded at intervals around the welded sprockets 1 and sleeves 3. Flanges 3 are welded to the outside of the two sleeves 2 respectively. The flanges 3 are machined with round holes for connection. During assembly, bolts 8 are passed through the round holes of the two flanges 3 and fastened with nuts 4, flat washers 6, and spring washers 7. One sprocket 1 is splined to connect to the output shaft of the reducer, and the other sprocket 1 is splined to connect to the blind shaft, forming a stable integrated transmission mechanism.

[0020] During operation, the motor drives the reducer, and the reducer output shaft drives the sprocket transmission mechanism to rotate stably. The sprocket transmission mechanism drives the transmission chain installed on the sprocket, thereby driving the scraper conveyor to operate stably.

Claims

1. A sprocket drive of a flight conveyor, comprising a pair of sprockets (1) of identical size, characterized in that: A pair of sprocket wheels (1) one end is fixed sleeve (2), two said sleeve (2) end head is fixed flange (3), two said sleeve (2) is fixedly connected through flange (3), make a pair of sprocket wheels (1) fixed into a whole, a pair of sprocket wheels (1) one sprocket wheel (1) connection speed reducer output shaft, another sprocket wheel (1) connection blind shaft, motor drives speed reducer output shaft, thus drive a pair of sprocket wheels (1) whole realizes stable transmission.

2. A sprocket drive for an apron conveyor as claimed in claim 1, characterised in that: The connecting end of two said sleeve (2) is processed into male and female matched interface for connection.

3. A sprocket drive for an apron conveyor as claimed in claim 1, characterized in that: Said a pair of sprocket wheels (1) and corresponding sleeve (2) are welded and fixed, and a plurality of reinforcing rib plates (5) are fixed at the welds for further strengthening the connection strength of sprocket wheel (1) and sleeve (2).

4. A sprocket drive for an apron conveyor as claimed in claim 3, characterised in that: Said reinforcing rib plate (5) is welded at the connection between sprocket wheel (1) and sleeve (2) in a circle.

5. A sprocket drive for an apron conveyor as defined in claim 1 wherein: Said flange (3) is processed with a round hole for connection, bolt (8) passes through the round holes of two flanges (3), and is fastened with nut (4), flat washer (6) and spring washer (7).

6. A sprocket drive for an apron conveyor as defined in claim 1 wherein: Said a pair of sprocket wheels (1) and the connected shaft are spline connected.

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