Synchronous driving reciprocating walking transmission mechanism of bale plucker

Abstract

A synchronous driving reciprocating walking transmission mechanism of a bale plucker comprises a gantry rack, a right walking driving device and a left walking driving device, and the left walking driving device and the right walking driving device are the same in structure and are installed at the lower ends of a left side box and a right side box of the gantry rack respectively. The right walking driving device comprises a right walking driving motor, a right motor chain wheel, a right driving roller, a right driven roller, a right walking transmission chain and a right wheel chain wheel, the right driving roller and the right driven roller are both arranged on the lathe bed guide rail, and the right driving motor drives the right wheel chain wheel through the right motor chain wheel and the right walking transmission chain; the right wheel chain wheel and the right driving roller are coaxially mounted; as long as the left driving motor and the right driving motor are synchronously started, the propulsive forces at the two ends of the gantry rack in the synchronous reciprocating motion are the same, the twisting phenomenon of the gantry rack in the reciprocating walking process can be eliminated, it is ensured that the rollers on the two sides can completely and synchronously walk, zero-torque walking operation is achieved, and the problems existing in the prior art are ideally solved.

Description

Technical Field

[0001] This utility model relates to textile machinery and equipment, and more particularly to the walking transmission structure of a cotton grabber in textile machinery. Background Technology

[0002] In textile machinery cotton grabbing equipment, the traveling transmission structure of the gantry frame is extremely important. Its smooth and uniform reciprocating movement is a prerequisite for ensuring that the cotton grabbing arm moves back and forth at a uniform speed on the surface of the cotton bale to grab the cotton. With the cooperation of the lifting transmission mechanism, it can achieve uniform grabbing of fibers layer by layer.

[0003] In existing gantry-type cotton grabbers, the reciprocating transmission structure of the gantry frame is as follows: Figure 1 As shown, it is a single-sided driven reciprocating transmission structure. Four rollers are installed on both sides of the bottom of the gantry frame 1. The two on the left are passive rollers 2, and the two on the right are active rollers 3. The two active rollers 2 on the right are driven synchronously by the travel drive motor 4 installed at the bottom of the gantry frame 1 via the synchronous belt 5. The two passive rollers 2 on the left side of the gantry frame 1 rotate freely as the two active rollers 2 on the right side rotate.

[0004] In actual operation, the above structure has the following disadvantages:

[0005] Because the gantry-type cotton-grabbing arm 6 is 3.5 meters long and the span of the gantry frame 1 is nearly 4 meters, the two active rollers 3 on the right side of the gantry frame 1 can maintain synchronous rotation under the action of the travel drive motor 4. However, the two driven rollers 2 fixed to the lower left side of the gantry frame 1 passively follow and rotate freely, relying on a rigid connection with the gantry frame 1. The entire gantry frame 1 is a unidirectional drive structure during reciprocating movement. During machine operation, because the cotton-grabbing arm 6 also needs to grab cotton synchronously while moving, the entire gantry frame 1 is not only subject to rolling friction resistance in the travel path, but also to resistance generated by the cotton-grabbing arm 6 grabbing cotton on the upper surface of the cotton bale in the length direction. The cotton-grabbing arm 6 is subjected to a large torsional torque in the length direction. Affected by this factor, the active rollers 3 and driven rollers 2 located on both sides of the gantry frame 1 cannot roll synchronously, which will directly affect the uniformity of cotton grabbing and result in poor overall operating accuracy and stability of the cotton grabbing machine. Utility Model Content

[0006] The purpose of this invention is to provide a synchronous drive reciprocating transmission mechanism for a cotton grabber. It eliminates the twisting phenomenon of the gantry frame during reciprocating movement, ensuring that the rollers on both sides of the gantry frame can move completely synchronously, achieving zero-torque operation.

[0007] The technical solution adopted by this utility model is as follows:

[0008] A synchronous drive reciprocating transmission mechanism for a cotton grabber includes a gantry frame, a right-moving drive device, and a left-moving drive device. The right-moving drive device and the left-moving drive device have the same structure and are respectively installed at the lower end of the right side box and the left side box of the gantry frame. The right-moving drive device includes a right-moving drive motor, a right motor sprocket, a right driving roller, a right driven roller, a right-moving transmission chain, and a right wheel sprocket. The right driving roller and the right driven roller are both placed on the bed guide rail. The right driving roller and the right driven roller are rotatably mounted on the right side box. The right-moving drive motor drives the right wheel sprocket through the right motor sprocket and the right-moving transmission chain. The right wheel sprocket is coaxially mounted with the right driving roller.

[0009] When the right travel drive motor starts, it drives the right motor sprocket to rotate. The right motor sprocket drives the right wheel sprocket to rotate through the right travel transmission chain. The right wheel sprocket drives the right drive roller to rotate. The right drive roller and the right driven roller are rotatably mounted on the right side box. The right driven roller rolls synchronously with the right drive roller along the bed guide rail.

[0010] The left-side travel drive unit includes a left-side travel drive motor, a left-side motor sprocket, a left-side drive roller, a left-side driven roller, a left-side travel transmission chain, and a left-side wheel sprocket. The left-side drive roller and the left-side driven roller are both placed on the bed guide rail. The left-side drive roller and the left-side driven roller are rotatably mounted on the left side box. The left-side travel drive motor drives the left-side wheel sprocket through the left-side motor sprocket and the left-side travel transmission chain. The left-side wheel sprocket is coaxially mounted with the left-side drive roller.

[0011] When the left travel drive motor starts, it drives the left motor sprocket to rotate. The left motor sprocket drives the left wheel sprocket to rotate through the left travel transmission chain. The left wheel sprocket drives the left drive roller to rotate. The left drive roller and the left driven roller are rotatably mounted on the left side box. The left driven roller rolls synchronously along the bed guide rail with the left drive roller.

[0012] Since the right-hand drive unit and the left-hand drive unit have the same structure, as long as the right-hand drive motor and the left-hand drive motor are started synchronously, the gantry frame can achieve synchronous reciprocating motion. The propulsion force at both ends of the gantry frame is the same during synchronous reciprocating motion, thus fundamentally eliminating the defects existing in the prior art.

[0013] Furthermore, both the right-hand drive motor and the left-hand drive motor are synchronously controlled by a frequency converter.

[0014] Both the right-hand drive motor and the left-hand drive motor are controlled by a frequency converter. When the cotton grabber is running, the frequency and start / stop actions of the two drive motors are completely consistent.

[0015] It reduces the resistance of the cotton bale to the cotton grabbing arm, assists the movement of the gantry frame, facilitates the synchronous movement of both sides of the gantry frame, eliminates the twisting phenomenon of the cotton grabbing arm during operation, and realizes the torque difference between the two ends of the cotton grabbing arm during operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the walking transmission structure of the cotton-grabbing arm in a cotton-grabbing machine in the prior art;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the right-hand drive mechanism.

[0019] Figure 4 This is a schematic diagram of the left-hand drive mechanism.

[0020] In the diagram: 1-Gantry frame; 2-Passive roller; 3-Driving roller; 4-Travel drive motor; 5-Synchronous belt; 6-Cotton gripping arm; 7-Right travel drive device; 8-Left travel drive device; 11-Right side box; 12-Left side box; 71-Right travel drive motor; 72-Right motor sprocket; 73-Right driving roller; 74-Right driven roller; 75-Right travel transmission chain; 76-Right wheel sprocket; 81-Left travel drive motor; 82-Left motor sprocket; 83-Left driving roller; 84-Left driven roller; 85-Left travel transmission chain; 86-Left wheel sprocket. Detailed Implementation

[0021] The specific embodiments of this utility model are illustrated below with reference to the accompanying drawings:

[0022] A synchronous drive reciprocating transmission mechanism for a cotton grabber, such as Figure 2-4 As shown, the machine includes a gantry frame 1, a right travel drive device 7, and a left travel drive device 8. The right travel drive device 7 and the left travel drive device 8 have the same structure and are respectively installed at the lower ends of the right side box 11 and the left side box 12 of the gantry frame 1. The right travel drive device 7 includes a right travel drive motor 71, a right motor sprocket 72, a right drive roller 73, a right driven roller 74, a right travel transmission chain 75, and a right wheel sprocket 76. The right drive roller 73 and the right driven roller 74 are both placed on the bed guide rail. The right drive roller 73 and the right driven roller 74 are rotatably mounted on the right side box 11. The right travel drive motor 71 drives the right wheel sprocket 76 through the right motor sprocket 72 and the right travel transmission chain 75. The right wheel sprocket 76 is coaxially mounted with the right drive roller 73.

[0023] When the right travel drive motor 71 starts, it drives the right motor sprocket 72 to rotate. The right motor sprocket 72 drives the right wheel sprocket 76 to rotate through the right travel transmission chain 75. The right wheel sprocket 76 drives the right drive roller 73 to rotate. Since the right drive roller 73 and the right driven roller 74 are rotatably mounted on the right side box 11, the right driven roller 74 will roll synchronously along the bed guide rail with the right drive roller 73.

[0024] The left travel drive device 8 includes a left travel drive motor 81, a left motor sprocket 82, a left driving roller 83, a left driven roller 84, a left travel transmission chain 85, and a left wheel sprocket 86. The left driving roller 83 and the left driven roller 84 are both placed on the bed guide rail. The left driving roller 83 and the left driven roller 84 are rotatably mounted on the left side box 12. The left travel drive motor 81 drives the left wheel sprocket 86 through the left motor sprocket 82 and the left travel transmission chain 85. The left wheel sprocket 86 is coaxially mounted with the left driving roller 83.

[0025] When the left travel drive motor 81 starts, it drives the left motor sprocket 82 to rotate. The left motor sprocket 82 drives the left wheel sprocket 86 to rotate through the left travel transmission chain 85. The left wheel sprocket 86 drives the left drive roller 83 to rotate. Since the left drive roller 83 and the left driven roller 84 are rotatably mounted on the left side box 12, the left driven roller 84 will roll synchronously along the bed guide rail with the left drive roller 83.

[0026] Both the right-hand drive motor 71 and the left-hand drive motor 81 are synchronously controlled by a frequency converter.

[0027] Since the right-hand drive unit 7 and the left-hand drive unit 8 have the same structure, as long as the right-hand drive motor 71 and the left-hand drive motor 81 are started synchronously, the gantry frame 1 can achieve synchronous reciprocating motion. The propulsion force at both ends of the gantry frame 1 is the same during synchronous reciprocating motion, thus fundamentally eliminating the defects existing in the prior art.

[0028] The right-hand drive motor 71 and the left-hand drive motor 81 are both controlled by a frequency converter. During operation, the frequency and start / stop actions of the two drive motors remain completely synchronized. This improves the consistency and stability of the synchronous movement of the gantry frame on both sides, eliminates the twisting phenomenon of the gantry frame during reciprocating movement, ensures that the rollers on both sides of the gantry frame can move completely synchronously, and achieves zero-torque operation, ideally solving the problems existing in the prior art.

Claims

1. A synchronous drive reciprocating transmission mechanism for a cotton grabber, characterized in that: The machine includes a gantry frame (1), a right travel drive device (7) and a left travel drive device (8). The right travel drive device (7) and the left travel drive device (8) have the same structure and are installed at the lower ends of the right side box (11) and the left side box (12) of the gantry frame (1), respectively. The right travel drive device (7) includes a right travel drive motor (71), a right motor sprocket (72), a right drive roller (73), a right driven roller (74), a right travel transmission chain (75), and a right wheel sprocket (76). The right drive roller (73) and the right driven roller (74) are both placed on the bed guide rail. The right drive roller (73) and the right driven roller (74) are rotatably installed on the right side box (11). The right travel drive motor (71) drives the right wheel sprocket (76) through the right motor sprocket (72) and the right travel transmission chain (75). The right wheel sprocket (76) is coaxially installed with the right drive roller (73).

2. The synchronous drive reciprocating transmission mechanism for a cotton grabber according to claim 1, characterized in that: The right travel drive motor (71) drives the right motor sprocket (72) to rotate. The right motor sprocket (72) drives the right wheel sprocket (76) to rotate through the right travel transmission chain (75). The right wheel sprocket (76) drives the right drive roller (73) to rotate. The right drive roller (73) and the right driven roller (74) are rotatably mounted on the right side box (11). The right driven roller (74) rolls synchronously along the bed guide rail with the right drive roller (73).

3. The synchronous drive reciprocating transmission mechanism for a cotton grabber according to claim 1, characterized in that: The left travel drive device (8) includes a left travel drive motor (81), a left motor sprocket (82), a left drive roller (83), a left driven roller (84), a left travel transmission chain (85), and a left wheel sprocket (86). The left drive roller (83) and the left driven roller (84) are both placed on the bed guide rail. The left drive roller (83) and the left driven roller (84) are rotatably mounted on the left side box (12). The left travel drive motor (81) drives the left wheel sprocket (86) through the left motor sprocket (82) and the left travel transmission chain (85). The left wheel sprocket (86) is coaxially mounted with the left drive roller (83).

4. The synchronous drive reciprocating transmission mechanism for a cotton grabber according to claim 3, characterized in that: When the left travel drive motor (81) starts, it drives the left motor sprocket (82) to rotate. The left motor sprocket (82) drives the left wheel sprocket (86) to rotate through the left travel transmission chain (85). The left wheel sprocket (86) drives the left drive roller (83) to rotate. The left drive roller (83) and the left driven roller (84) are rotatably mounted on the left side box (12). The left driven roller (84) rolls synchronously along the bed guide rail with the left drive roller (83).

5. The synchronous drive reciprocating transmission mechanism for a cotton grabber according to claim 1 or 3, characterized in that: Both the right-hand drive motor (71) and the left-hand drive motor (81) are synchronously controlled by the frequency converter.

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