A tensioning device for a mining miller

Abstract

The utility model belongs to the field of engineering machinery, especially relates to milling and planing machine structure, concretely is a kind of tensioner for mining milling and planing machine, including driving pulley, tensioner, driven pulley, V type group belt, tensioning oil cylinder;V type group belt is set on driving pulley and driven pulley, driving pulley and driven pulley are separately located at the both ends of V type group belt, wherein driving pulley is connected with power system, tensioner is located at the middle of V type group belt and is in contact with its inner side, and located below the chassis bottom plate, one end of tensioning oil cylinder is fixed with the chassis bottom plate, and one end is connected with tensioner.The tensioner for mining milling and planing machine provided by the utility model increases the height of tensioning oil cylinder seat, reduces the support length of tensioning oil cylinder, and at the same time reduces the strength of V type group belt tensioning, increases the service life of V type group belt.

Description

Technical Field

[0001] This utility model belongs to the field of engineering machinery, and particularly relates to the structure of milling machines, specifically a tensioning device for mining milling machines. Background Technology

[0002] Mining milling machines are heavy equipment used to solve problems such as uneven road surfaces in coal mine tunnels caused by tunneling processes, road surface heave caused by ground pressure, ruts caused by vehicle wheels, and damaged old cement concrete pavements in tunnels.

[0003] Currently, most transmission systems use belt drives. The power generated by the engine is transmitted outward through the rotation of the drive pulley. The tension cylinder opens the V-belt to generate pressure. The rotating drive pulley drives the driven pulley to rotate through the pressure of the V-belt, thereby driving the equipment connected to the driven pulley to move. However, in conventional structures, the tension pulley is usually located on the top of the frame, making it difficult to separate from the V-belt or belt during maintenance and replacement. Furthermore, the output end of the tension cylinder is usually set upward, which results in an excessively long support length for the tension cylinder and excessive pressure on the V-belt. Over time, this will affect the strength of the V-belt. Utility Model Content

[0004] The purpose of this utility model is to provide a tensioning device for a mining milling machine, which improves the connection method and structure of traditional tensioning devices and solves the above-mentioned problems existing in conventional structures.

[0005] The technical solution of this utility model is as follows:

[0006] A tensioning device for a mining milling machine includes a drive pulley, a tensioning pulley, a driven pulley, a V-belt, a tensioning cylinder, and a chassis base plate.

[0007] The V-belt is fitted onto the driving pulley and the driven pulley, which are located at opposite ends of the V-belt. The driving pulley is connected to the milling machine's power system. The tensioning pulley is installed inside the V-belt and located below the chassis floor plate. The tensioning pulley abuts against the inner side of the middle of the V-belt and is located below the chassis floor plate. One end of the tensioning cylinder is fixed to the chassis floor plate, and the other end is connected to the tensioning pulley.

[0008] Furthermore, the side of the tensioning wheel that abuts against the V-shaped belt is the side that is far from the tensioning cylinder, and the fixed end of the tensioning cylinder and the frame base plate is higher than its output end connected to the tensioning wheel.

[0009] The beneficial technical effects of this utility model are as follows:

[0010] 1. The tensioning device for mining milling machines provided by this utility model increases the height of the tensioning cylinder seat, reduces the support length of the tensioning cylinder, and at the same time reduces the tensioning strength of the V-belt and increases the service life of the V-belt.

[0011] 2. The tensioning device for mining milling machines provided by this utility model avoids the interference caused by the position of the tensioning device on the upgrade of the power system during the upgrading of milling machines, and brings new ideas for improvement. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the connection structure of the tensioning device in an embodiment of this utility model.

[0013] The attached diagram shows the following reference numerals: 1-driving pulley; 2-tensioning pulley; 3-driven pulley; 4-V-belt; 5-tensioning cylinder; 6-chassis base plate. Detailed Implementation

[0014] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model, so that those skilled in the art can reproduce this technical solution after understanding the principle of this solution.

[0015] This embodiment discloses a tensioning device for a mining milling machine, which is installed on the frame of the mining milling machine and works in conjunction with the power transmission system to realize the movement control of the milling machine vehicle.

[0016] like Figure 1 As shown, the tensioning device includes a driving pulley 1, a tensioning pulley 2, a driven pulley 3, a V-belt 4, and a tensioning cylinder 5;

[0017] V-shaped belt 4 is fitted onto the driving pulley 1 and the driven pulley 3. The driving pulley 1 is located at the upper left end of the V-shaped belt 4, and the driven pulley 3 is located at the lower right end of the V-shaped belt 4. The tensioning pulley 2 is located in the middle of the V-shaped belt 4 and abuts against its inner side, and is located below the chassis base plate 6. One end of the tensioning cylinder 5 is fixed to the chassis base plate 6, and the other end is connected to the tensioning pulley 2.

[0018] The tensioning pulley 2 is tensioned in the direction of the drive pulley 1.

[0019] The fixed end of the tensioning cylinder 5 to the chassis base plate 6 is higher than its output end connected to the tensioning wheel 2.

[0020] An explosion-proof diesel engine is installed on the mining milling machine. The power generated by the engine drives the drive pulley 1 to rotate. The tensioning cylinder 5 opens the V-belt 4 to generate pressure. The rotating drive pulley 1 drives the driven pulley 3 to rotate through the pressure of the V-belt 4, thereby driving the equipment connected to the driven pulley 3 to move.

[0021] It should be noted that all contents not described in detail in this specification are prior art known to those skilled in the art. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tensioning device for a mining milling machine, characterized in that: It includes a drive pulley (1), a tension pulley (2), a driven pulley (3), a V-belt (4), a tension cylinder (5), and a chassis base plate (6). The V-shaped belt (4) is fitted onto the driving pulley (1) and the driven pulley (3). The driving pulley (1) and the driven pulley (3) are located at both ends of the V-shaped belt (4). The driving pulley (1) is connected to the milling machine power system. The tension wheel (2) is installed inside the V-shaped belt (4) and located below the chassis base plate (6). The tension wheel (2) abuts against the inner side of the middle of the V-shaped belt (4) and is located below the chassis base plate (6). One end of the tension cylinder (5) is fixed to the chassis base plate (6), and the other end is connected to the tension wheel (2).

2. The tensioning device for a mining milling machine according to claim 1, characterized in that: The side of the tensioning wheel (2) that abuts against the V-shaped connecting belt (4) is the side that is fixed away from the tensioning cylinder (5). The fixed end of the tensioning cylinder (5) and the frame base plate (6) is higher than its output end connected to the tensioning wheel (2).

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