Cotton picker rear axle system with high bearing capacity

Abstract

The cotton picker rear axle system with the high bearing capacity comprises a rear axle shell and a steering mechanism, the two sides of the rear axle shell are connected with one end of a left transmission shaft and one end of a right transmission shaft respectively, and the other end of the left transmission shaft and the other end of the right transmission shaft are hinged to a left auxiliary transmission shaft and a right auxiliary transmission shaft respectively. The left auxiliary transmission shaft and the right auxiliary transmission shaft are connected with a left reduction mechanism and a right reduction mechanism respectively, and the left reduction mechanism and the right reduction mechanism are used for installing wheels. The steering mechanism comprises a two-way hydraulic oil cylinder and two movable rods, a piston rod is arranged in the two-way hydraulic oil cylinder, the two ends of the piston rod extend out of the two-way hydraulic oil cylinder and are hinged to one ends of the movable rods through connecting pieces, and the other ends of the movable rods are hinged to the edge reduction mechanism; the connecting piece comprises a connector and a connecting body, the connector is hinged to one end of the movable rod, a fixing groove is formed in the bottom of the connecting body, and the fixing groove is fixedly connected with the head of the piston rod through a fixing structure.

Description

Technical Field

[0001] The utility model relates to a rear axle system of a cotton picker with high load-bearing capacity. Background Art

[0002] The cotton planting area in my country is quite extensive. In the past, cotton picking mainly relied on manual labor, which was labor-intensive and inefficient. With the development of agricultural machinery, cotton pickers have become more and more popular. Cotton pickers can effectively increase the speed of cotton picking, reduce labor, and improve the efficiency of warp connection. Among them, the rear axle of the cotton picker plays the role of steering the whole vehicle and is an important structure to ensure the normal operation of the vehicle.

[0003] When existing cotton pickers use rear-wheel steering, most of them rely on a connecting rod mechanism to achieve the linkage of the left and right wheels. When turning, they are usually driven by a cylinder. During installation, in order to save space, the cylinder is usually assembled as a part of the connecting rod mechanism. At this time, the cylinder is usually connected to the main part as the connecting rod part of the connecting rod mechanism. However, due to the limited length of the piston rod of the cylinder, a connecting rod needs to be added to extend it. The connection between the connecting rod and the piston rod is usually directly connected by bolts, but this requires specific processing of the connecting rod and the piston rod to ensure that the processing specifications are consistent, which undoubtedly increases the difficulty of processing. Utility Model Content

[0004] The purpose of the utility model is to solve the above deficiencies in the prior art and provide a cotton picker rear axle system with high load-bearing capacity.

[0005] A high-load-bearing cotton picker rear axle system comprises a rear axle housing and a steering mechanism, wherein one end of a left transmission shaft and a right transmission shaft are respectively connected to both sides of the rear axle housing, the other ends of the left transmission shaft and the right transmission shaft are respectively hinged to a left auxiliary transmission shaft and a right auxiliary transmission shaft, and the left auxiliary transmission shaft and the right auxiliary transmission shaft are respectively connected to a left reduction mechanism and a right reduction mechanism;

[0006] The steering mechanism includes a bidirectional hydraulic cylinder and two movable rods. A piston rod is arranged in the bidirectional hydraulic cylinder. Both ends of the piston rod extend out of the bidirectional hydraulic cylinder and are hinged to one end of the movable rod through a connecting piece. The other end of the movable rod is hinged to the side reduction mechanism.

[0007] The connecting piece comprises a connecting head and a connecting body. The connecting head is hinged to one end of the movable rod. A fixing groove is arranged at the bottom of the connecting body. The fixing groove is fixedly connected to the head of the piston rod through a fixing structure.

[0008] Preferably, the outer side wall of the piston rod head is provided with an external thread, the inner side wall of the connector fixing groove is provided with an internal thread, and the fixing groove is threadedly connected to the piston rod head.

[0009] Preferably, the connector includes a connecting ring, which is an annular structure. The bottom surface of one end of the movable rod is provided with a groove that passes through the side wall, and the side wall of the groove is provided with a through hole. The movable rod and the connecting ring are connected by a rotating pin, and a nut is provided at the bottom of the rotating pin to fix it.

[0010] Preferably, a connecting column is provided on the outer side wall of the connecting ring, the connecting column is movably inserted into the bottom surface of the connecting body and passes through the bottom of the connecting groove, and a baffle is provided on the bottom surface of the connecting column.

[0011] Preferably, a through hole is provided on the bottom surface of the connector at the connection point where the connecting column is inserted, and the diameter of the through hole is smaller than the width of the baffle.

[0012] Preferably, the two sides of the rear axle housing are respectively connected to the left bridge frame housing and the right bridge frame housing through a flange structure, the left bridge frame housing and the right bridge frame housing are located outside the left transmission shaft and the right transmission shaft, the front end face of the rear-front housing is connected to the sub-transmission housing through a flange structure, the sub-transmission mechanism is arranged in the sub-transmission housing, and the front end face of the rear axle housing is also provided with a cylinder fixing plate, and the surface of the cylinder fixing plate is provided with a through hole for the bidirectional hydraulic cylinder to pass through and fix.

[0013] Preferably, a differential is provided in the rear axle housing, and the differential is connected to the left transmission shaft and the right transmission shaft.

[0014] Beneficial effect: Compared with the prior art, the utility model realizes hinge connection by connecting the movable rod and the piston rod of the two-way hydraulic cylinder through a connecting piece. The connecting piece includes a connecting head and a connecting body. The bottom surface of the connecting body is provided with a groove, which is fixedly connected to the piston rod by a threaded connection. At the same time, a connecting ring is movably arranged in the connecting body and passes through the bottom of the groove. The baffle is used to limit the connecting ring to prevent the connecting ring from detaching from the connecting body. The connecting ring is connected to one end of the movable rod by a pin and fixed by a nut. When the connecting body and the piston rod are screwed, since the connecting ring and the connecting body are movably connected, after the connecting ring and the movable rod are connected first, the connecting body can still rotate by itself to connect. The hinge connection realized by the connecting piece is convenient for assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a high-load-bearing cotton picker rear axle system;

[0016] Figure 2 It is a schematic diagram of the interior of a high-load-bearing cotton picker rear axle system;

[0017] Figure 3 is a schematic diagram of the connector;

[0018] Figure 4 is a schematic diagram of the connector;

[0019] Figure 5 is a schematic diagram of the connector;

[0020] In the figure, 1, rear axle housing, 2, left bridge frame housing, 3, right bridge frame housing, 4, left reduction mechanism, 5, right reduction mechanism, 6, movable rod, 7, piston rod, 8, auxiliary transmission case, 9, left transmission shaft, 10, right transmission shaft, 11, left auxiliary transmission shaft, 12, right auxiliary transmission shaft, 13, connector, 14, connector, 15, connecting ring, 16, connecting column, 17, baffle. DETAILED DESCRIPTION

[0021] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0022] like Figure 1-5 As shown, rear axle housing 1, left axle frame housing 2, right axle frame housing 3, left reduction mechanism 4, right reduction mechanism 5, movable rod 6, piston rod 7, auxiliary gearbox housing 8, left transmission shaft 9, right transmission shaft 10, left auxiliary transmission shaft 11, right auxiliary transmission shaft 12, connector 13, connector 14, connecting ring 15, connecting column 16, baffle 17;

[0023] A high-load-bearing cotton picker rear axle system comprises a rear axle housing 1 and a steering mechanism, wherein one end of a left transmission shaft 9 and a right transmission shaft 10 are respectively connected to both sides of the rear axle housing 1, and the other ends of the left transmission shaft 9 and the right transmission shaft 10 are respectively hinged to a left auxiliary transmission shaft 11 and a right auxiliary transmission shaft 12, and the left auxiliary transmission shaft 11 and the right auxiliary transmission shaft 12 are respectively connected to a left reduction mechanism 4 and a right reduction mechanism 5;

[0024] The steering mechanism includes a bidirectional hydraulic cylinder and two movable rods 6. A piston rod 7 is arranged inside the bidirectional hydraulic cylinder. Both ends of the piston rod 7 extend out of the bidirectional hydraulic cylinder and are hinged to one end of the movable rod 6 through a connecting piece. The other end of the movable rod 6 is hinged to the side reduction mechanism.

[0025] The connecting piece includes a connecting head 13 and a connecting body 14. The connecting head 13 is hinged to one end of the movable rod 6. The connecting head 13 includes a connecting ring 15. The connecting ring 15 is an annular structure. The bottom surface of one end of the movable rod 6 is provided with a groove that passes through the side wall. The side wall of the groove is provided with a through hole. The movable rod 6 and the connecting ring 15 are connected by a rotating pin, and a nut is provided at the bottom of the rotating pin to fix it.

[0026] A fixing groove is provided at the bottom of the connecting body 14, and the fixing groove is fixedly connected to the head of the piston rod 7 through a fixing structure. An outer wall of the head of the piston rod 7 is provided with an external thread, and an inner wall of the fixing groove of the connecting body 14 is provided with an internal thread. The fixing groove is threadedly connected to the head of the piston rod 7. A connecting column 16 is provided on the outer wall of the connecting ring 15. The connecting column 16 is movably inserted in the bottom surface of the connecting body 14 and passes through the bottom of the connecting groove. A baffle 17 is provided on the bottom surface of the connecting column 16. A through hole is provided on the bottom surface of the connecting body 14 at the insertion position of the connecting column 16, and the diameter of the through hole is smaller than the width of the baffle 17.

[0027] In this embodiment, the two sides of the rear axle housing 1 are respectively connected to the left bridge frame housing 2 and the right bridge frame housing 3 through a flange structure. The left bridge frame housing 2 and the right bridge frame housing 3 are located outside the left transmission shaft 9 and the right transmission shaft 10. The front end surface of the rear-front housing is connected to the auxiliary transmission housing 8 through a flange structure. The auxiliary transmission housing 8 is provided with an auxiliary transmission mechanism. The front end surface of the rear axle housing is also provided with a cylinder fixing plate. The surface of the cylinder fixing plate is provided with a through hole for the bidirectional hydraulic cylinder to pass through and fix. A differential is provided in the rear axle housing 1, and the differential is connected to the left transmission shaft 9 and the right transmission shaft 10.

[0028] Instructions for use: A groove is provided on the bottom surface of the connecting body 14, which is fixedly connected to the piston rod 7 by a threaded connection. At the same time, the connecting ring 15 is movably arranged in the connecting body 14 and passes through the bottom of the groove. The baffle 17 is used to limit the connecting ring 15 to prevent it from being separated from the connecting body 14. The connecting ring 15 is connected to one end of the movable rod 6 by a pin and fixed by a nut. When the connecting body 14 and the piston rod 7 are screwed, since the connecting ring 15 and the connecting body 14 are movably connected, after the connecting ring 15 and the movable rod 6 are connected first, the connecting body 14 can still rotate by itself to connect.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-load-bearing cotton picker rear axle system, characterized in that: It includes a rear axle housing and a steering mechanism, wherein one end of a left transmission shaft and a right transmission shaft are respectively connected to both sides of the rear axle housing, the other ends of the left transmission shaft and the right transmission shaft are respectively hinged to a left auxiliary transmission shaft and a right auxiliary transmission shaft, and the left auxiliary transmission shaft and the right auxiliary transmission shaft are respectively connected to a left reduction mechanism and a right reduction mechanism; The steering mechanism comprises a bidirectional hydraulic cylinder and two movable rods. A piston rod is arranged in the bidirectional hydraulic cylinder. Both ends of the piston rod extend out of the bidirectional hydraulic cylinder and are hinged to one end of the movable rod through a connecting piece. The other end of the movable rod is hinged to the side reduction mechanism. The connecting piece comprises a connecting head and a connecting body, the connecting head is hinged to one end of the movable rod, a fixing groove is arranged at the bottom of the connecting body, and the fixing groove is fixedly connected to the head of the piston rod through a fixing structure.

2. A high-load-bearing cotton picker rear axle system according to claim 1, characterized in that: The outer side wall of the piston rod head is provided with an external thread, the inner side wall of the connecting body fixing groove is provided with an internal thread, and the fixing groove is threadedly connected with the piston rod head.

3. The high-load-bearing cotton picker rear axle system according to claim 2, characterized in that: The connector includes a connecting ring, which is an annular structure. The bottom surface of one end of the movable rod is provided with a groove that passes through the side wall, and the side wall of the groove is provided with a through hole. The movable rod and the connecting ring are connected by a rotating pin, and a nut is provided at the bottom of the rotating pin to fix it.

4. A high-load-bearing cotton picker rear axle system according to claim 3, characterized in that: The outer side wall of the connecting ring is provided with a connecting column, which is movably plugged into the bottom surface of the connecting body and passes through the bottom of the connecting groove, and a baffle is provided on the bottom surface of the connecting column.

5. The high-load-bearing cotton picker rear axle system according to claim 4, characterized in that: A through hole is arranged on the bottom surface of the connector at the plugging position of the connector column, and the diameter of the through hole is smaller than the width of the baffle.

6. The high-load-bearing cotton picker rear axle system according to claim 1, characterized in that: The two sides of the rear axle housing are respectively connected to the left bridge frame housing and the right bridge frame housing through flange structures. The left bridge frame housing and the right bridge frame housing are located outside the left transmission shaft and the right transmission shaft. The front end face of the rear-front housing is connected to the sub-transmission housing through a flange structure. The sub-transmission mechanism is arranged in the sub-transmission housing. The front end face of the rear axle housing is also provided with a cylinder fixing plate, and the surface of the cylinder fixing plate is provided with a through hole for the penetration and fixing of a bidirectional hydraulic cylinder.

7. The high-load-bearing cotton picker rear axle system according to claim 1, characterized in that: A differential is arranged in the rear axle housing, and the differential is connected to the left transmission shaft and the right transmission shaft.

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