Traction connecting device for agricultural machinery

Abstract

The utility model provides an agricultural machinery traction connecting device which comprises a metal connecting block, a traction cylinder, a rectangular pull rod, a fixed frame body and a movable frame body, an integrated semicircular block is arranged at the left end of the metal connecting block, an oval through groove is formed in the left side of the front end of the traction cylinder in a penetrating mode, and a welding piece is longitudinally welded to the right end of the rectangular pull rod. The rectangular pull rod is movably inserted into the traction cylinder, a fixed shaft movably penetrates through the left side of the front end of the traction cylinder and is movably located in the oval through groove, and a movable frame is movably arranged at the left end of the outer portion of the traction cylinder. In order to solve the problems that in the prior art, when agricultural machinery is pulled, large pulling force can be generated to a limiting column through a metal connecting block, the limiting column can be stretched and damaged if the pulling force is serious, and the follow-up traction use effect is affected, the buffering type traction stretching structure is designed, the angle is adjustable, then the pulling force generated at the traction moment of the agricultural machinery can be buffered, and follow-up parts are not prone to being damaged.

Description

Technical Field

[0001] The utility model relates to an agricultural machinery traction connection device, belonging to the technical field of agricultural machinery traction equipment. Background Art

[0002] Traction-type agricultural machinery can complete the operations of trenching, digging, conveying and separating, stem and vine removal and centralized loading at one time. It is connected to the back of the tractor through the traction device and is pulled by the tractor to complete various operations. In order to meet the requirements of different machines and different operations, the traction point can be adjusted horizontally and vertically within a certain range of the traction plate.

[0003] Announcement No.: CN211580571U mentions a traction device for agricultural machinery, which can place the plug plate inside the lower block and the upper block, and then align the No. 2 connection hole, the No. 3 connection hole, and the No. 1 connection hole. By compressing the limit block, the pin can be placed inside the No. 3 connection hole, the No. 1 connection hole, and the No. 2 connection hole. The limit block can be popped out by the connecting spring to facilitate limiting the position of the pin so that the pin will not slip out. However, the device is not equipped with any buffer structure. At the moment of agricultural machinery traction, a large pulling force will be generated to the limit column through the metal connecting block. In severe cases, it will be stretched and damaged, affecting the subsequent traction effect. Now there is an urgent need for an agricultural machinery traction connection device to solve the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an agricultural machinery traction connection device to solve the problems raised in the above-mentioned background technology. The utility model designs a buffering traction and stretching structure with adjustable angle, which can buffer the instantaneous pulling force of the agricultural machinery traction, making it less likely to damage subsequent components.

[0005] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: an agricultural machinery traction connection device, including a metal connecting block, a traction cylinder, a rectangular pull rod, a fixed frame and a movable frame, the left end of the metal connecting block is provided with an integrated semicircular block, an elliptical through groove is penetrated through the left side of the front end of the traction cylinder, a welding piece is longitudinally welded to the right end of the rectangular pull rod, the rectangular pull rod is movably inserted into the traction cylinder, a fixed shaft is movably penetrated through the left side of the front end of the traction cylinder, the fixed shaft is movably located in the elliptical through groove, a movable frame is movably provided at the left end of the outside of the traction cylinder, a fixed frame is welded to the right end of the outside of the traction cylinder, and a plurality of buffer springs are installed between the fixed frame and the movable frame.

[0006] Furthermore, an arc-shaped rubber sheet is fixed to the left end of the inside of the elliptical through groove, and the fixed axis is located right to the arc-shaped rubber sheet.

[0007] Furthermore, welding clamping plates are welded to the front and rear sides of the right end of the welding piece.

[0008] Furthermore, the one-piece semicircular block is movably clamped between two welding clamping plates, and pin grooves are formed through the front ends of the one-piece semicircular block and the two welding clamping plates.

[0009] Furthermore, a high-strength limiting pin is installed in the pin groove.

[0010] Furthermore, the fixed shaft is welded to the left end of the movable frame.

[0011] The beneficial effects of the utility model: an agricultural machinery traction connection device of the utility model, because the utility model adds a metal connecting block, a welding clamping plate, a high-strength limit pin, a rectangular pull rod, a fixed shaft, a traction cylinder, an arc-shaped rubber sheet, a movable frame, a buffer spring, a fixed frame, a welding sheet and an integrated semicircular block, our design improvement and actual use show that the device has a reasonable structure and good practicality. A buffering traction stretching structure is designed with an adjustable angle, which can buffer the instantaneous pulling force of the agricultural machinery traction, so that it is not easy to damage subsequent parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an agricultural machinery traction connection device of the utility model;

[0014] Figure 2 This is a schematic diagram of the pin slot position of a traction connection device for agricultural machinery according to the utility model;

[0015] Figure 3 It is a three-dimensional schematic diagram of a rectangular pull rod of a traction connection device for agricultural machinery according to the utility model;

[0016] In the figure: 1-metal connecting block, 2-welding clamping plate, 3-high-strength limit pin, 4-rectangular pull rod, 5-fixed shaft, 6-traction cylinder, 7-elliptical through groove, 8-arc rubber sheet, 9-movable frame, 10-buffer spring, 11-fixed frame, 12-pin groove, 13-welding sheet, 14-integrated semicircular block. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] See also Figure 1-Figure 3The utility model provides a technical solution: an agricultural machinery traction connection device, including a metal connection block 1, a traction cylinder 6, a rectangular pull rod 4, a fixed frame 11 and a movable frame 9, an integrated semicircular block 14 is arranged at the left end of the metal connection block 1, an elliptical through groove 7 is penetrated through the left side of the front end of the traction cylinder 6, a welding piece 13 is longitudinally welded at the right end of the rectangular pull rod 4, the rectangular pull rod 4 is movably inserted in the traction cylinder 6, a fixed shaft 5 is movably penetrated through the left side of the front end of the traction cylinder 6, the fixed shaft 5 is movably located in the elliptical through groove 7, a movable frame 9 is movably arranged at the left end of the outside of the traction cylinder 6, a fixed frame 11 is welded at the right end of the outside of the traction cylinder 6, and a plurality of buffer springs 10 are installed between the fixed frame 11 and the movable frame 9. This design solves the problem that the original device does not have any buffer structure. At the moment of agricultural machinery traction, a large pulling force will be generated to the limit column through the metal connection block, which will be stretched and damaged in a serious case, affecting the subsequent traction effect.

[0019] As the first embodiment of the utility model: an arc-shaped rubber sheet 8 is fixed to the left end of the inside of the elliptical groove 7, and the fixed shaft 5 is located to the right of the arc-shaped rubber sheet 8. By adding the arc-shaped rubber sheet 8, when the fixed shaft 5 is driven to move left in the elliptical groove 7, it can be limited, so that the fixed shaft 5 will not contact with the left side wall of the elliptical groove 7 and wear when moving left. A welding clamp 2 is welded to the front and back sides of the right end of the welding sheet 13. The integrated semicircular block 14 is movably clamped between the two welding clamps 2, and a pin groove 12 is provided through the front end of the integrated semicircular block 14 and the two welding clamps 2. A high-strength limit pin 3 is installed in the pin groove 12, and the added high-strength limit pin 3 facilitates the movable connection between the integrated semicircular block 14 and the two welding clamps 2.

[0020] The fixed shaft 5 is welded to the left end of the movable frame 9. By welding the fixed shaft 5 to the movable frame 9, when the fixed shaft 5 is driven to move right, the multiple buffer springs 10 will be squeezed by the movable frame 9, so that the multiple buffer springs 10 can buffer the transmitted force.

[0021] As the second embodiment of the utility model: in actual use, the right end of the metal connecting block 1 is connected to the agricultural machinery equipment, and then the left end of the traction cylinder 6 is connected to the towed machine. When the agricultural machinery equipment moves to the right for traction, the rectangular pull rod 4 will be pulled to the right through the metal connecting block 1, the integrated semicircular block 14, the high-strength limit pin 3 and the welding plate 13, and then the rectangular pull rod 4 will pull the fixed shaft 5 to the right. When the fixed shaft 5 moves to the right, the multiple buffer springs 10 will be squeezed through the movable frame 9, so that the multiple buffer springs 10 will buffer the instantaneous force transmitted by them, and then they will be transmitted to the fixed frame 11 and the traction cylinder 6, so that the traction cylinder 6 can pull the towed machine to the right to move.

[0022] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A traction connection device for agricultural machinery, comprising a metal connection block (1), a traction cylinder (6), a rectangular pull rod (4), a fixed frame (11) and a movable frame (9), characterized in that: The left end of the metal connection block (1) is provided with an integrated semicircular block (14); the left side of the front end of the traction cylinder (6) is penetrated by an elliptical through groove (7); the right end of the rectangular pull rod (4) is longitudinally welded with a welding plate (13); The rectangular pull rod (4) is movably inserted into the interior of the traction cylinder (6); a fixed shaft (5) is movably penetrated through the left side of the front end of the traction cylinder (6); the fixed shaft (5) is movably located in the elliptical through groove (7); a movable frame (9) is movably arranged at the left end of the exterior of the traction cylinder (6); a fixed frame (11) is welded to the right end of the exterior of the traction cylinder (6); and a plurality of buffer springs (10) are installed between the fixed frame (11) and the movable frame (9).

2. The agricultural machinery traction connection device according to claim 1, characterized in that: An arc-shaped rubber sheet (8) is fixed to the left end of the inside of the elliptical through groove (7), and the fixed shaft (5) is located directly to the right of the arc-shaped rubber sheet (8).

3. The agricultural machinery traction connection device according to claim 1, characterized in that: A welding clamping plate (2) is welded to the front and rear sides of the right end of the welding piece (13).

4. The agricultural machinery traction connection device according to claim 3, characterized in that: The integrated semicircular block (14) is movably clamped between the two welding clamping plates (2), and a pin groove (12) is formed through the front ends of the integrated semicircular block (14) and the two welding clamping plates (2).

5. The agricultural machinery traction connection device according to claim 4, characterized in that: A high-strength limiting pin (3) is installed in the pin groove (12).

6. The agricultural machinery traction connection device according to claim 1, characterized in that: The fixed shaft (5) is welded to the left end of the movable frame (9).

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