Tractor hitch

Abstract

The utility model relates to tractor traction frame technical field discloses a tractor traction device, including the hopper frame, the inner wall hinged connection of hopper frame has the connecting frame, the inner wall fixed connection of head frame has the connecting block, and the inner wall of connecting block has set up through -hole, and the inner wall of head frame is provided with the protection mechanism, positioning mechanism, and positioning mechanism includes the sleeve, and the sleeve fixed connection is in the outer wall of connecting frame, and the inner wall sliding connection of connecting frame has the locating shaft, and the inner wall of locating shaft has set up the inclined slot, and the inner wall between sleeve and the outer wall of locating shaft fixed connection has the locating spring. In the utility model, through the setting of positioning mechanism, can realize the quick assembly disassembly of connecting block and connecting frame, so can make hopper frame and head frame quick docking or separate, compared with the traditional pin shaft and bolt connection, and this kind of connecting mode makes tractor head and hopper disassembly more convenient, efficient, to can improve the carrying efficiency of tobacco.

Description

Technical Field

[0001] This utility model relates to the field of tractor towing frame technology, and in particular to a tractor towing device. Background Technology

[0002] In tobacco harvesting operations, tractors are an indispensable core auxiliary equipment, enabling the rapid and efficient transfer of harvested tobacco leaves from farmland to designated locations. In large-scale operations at large tobacco planting bases, to further improve overall handling efficiency, a multi-bucket operation mode is usually adopted, where one tractor head is used with multiple buckets alternately. This allows workers to simultaneously load tobacco leaves into empty buckets or unload tobacco from fully loaded buckets while the tractor head is pulling one bucket to transport tobacco leaves, thus achieving parallel progress of transportation and loading / unloading processes and avoiding wasted time.

[0003] The tractor cab and the cargo bucket are connected by a drawbar. Currently, most tractor drawbars use a pin and bolt structure for fixing. The pin passes through the through hole between the cab's drawbar lug and the cargo bucket's connecting lug, and the bolt passes through the positioning hole at the end of the pin and the nut is tightened to restrict the pin's axial movement. However, this connection method requires disassembling and assembling the cargo bucket one by one, which is cumbersome and time-consuming. Especially in large-scale tobacco field operations, the cargo bucket needs to be frequently disassembled and assembled to accommodate the alternating operation mode of one machine with multiple buckets. The inconvenience of the above connection method will increase the downtime of operation and seriously affect the overall handling efficiency.

[0004] Therefore, a tractor traction device is proposed to solve the above problems. Utility Model Content

[0005] This utility model provides a tractor traction device, which aims to improve the problem of "inconvenient disassembly and assembly of tractor traction frames" mentioned in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tractor traction device, comprising:

[0007] A cargo bucket frame, wherein a connecting frame is hinged to the inner wall of the cargo bucket frame;

[0008] The machine head frame has a connecting block fixedly connected to its inner wall, the connecting block has a through hole in its inner wall, and the inner wall of the machine head frame is provided with a protective mechanism.

[0009] A positioning mechanism includes a sleeve fixedly connected to the outer wall of a connecting frame. A positioning shaft is slidably connected to the inner wall of the connecting frame. An inclined groove is formed on the inner wall of the positioning shaft. A positioning spring is fixedly connected between the inner wall of the sleeve and the outer wall of the positioning shaft. A sliding rod is slidably connected to the inner wall of the connecting frame. A top rod is fixedly connected to the side wall of the sliding rod.

[0010] As a further description of the above technical solution:

[0011] The protective mechanism includes a sliding plate, which is slidably connected to the inner wall of the machine head frame, and the inner wall of the sliding plate is provided with a groove.

[0012] As a further description of the above technical solution:

[0013] A guide rod is fixedly connected to the inner wall of the machine head frame, and the guide rod is slidably connected to the inner wall of the slide groove.

[0014] As a further description of the above technical solution:

[0015] A limit block is fixedly connected to one end of the guide rod near the through hole.

[0016] As a further description of the above technical solution:

[0017] A reset spring is fixedly connected between the left side of the limiting block and the inner wall of the slide groove.

[0018] As a further description of the above technical solution:

[0019] The end of the top rod away from the slide rod passes through the sleeve and fits against the inner wall of the inclined groove, and the slide rod and the sleeve are slidably connected at the point where they pass through.

[0020] As a further description of the above technical solution:

[0021] A strong magnetic block is fixedly connected to the inner wall of the through hole.

[0022] As a further description of the above technical solution:

[0023] The inner diameter of the through hole is equal to the outer diameter of the positioning shaft. The end of the positioning shaft away from the positioning spring is inserted into the inner wall of the through hole and magnetically engages with the strong magnet.

[0024] This utility model has the following beneficial effects:

[0025] 1. In this utility model, the positioning mechanism enables the quick assembly and disassembly of the connecting block and the connecting frame, thus allowing the cargo bucket frame and the head frame to be quickly connected or separated. Compared with the traditional pin and bolt connection, this connection method makes the assembly and disassembly of the tractor head and the cargo bucket more convenient and efficient, thereby improving the efficiency of tobacco leaf handling.

[0026] 2. In this utility model, by setting up a protective mechanism, the openings at both ends of the through hole can be blocked after the connecting block and the connecting frame are separated, so as to prevent soil in the tobacco field from splashing into the through hole and causing blockage during the machine head's operation, thus ensuring that the connecting block and the connecting frame can be quickly connected later. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This utility model Figure 1 A schematic diagram of the exploded structure;

[0029] Figure 3 This is a cross-sectional structural diagram of the connection between the connecting block and the connecting frame of this utility model;

[0030] Figure 4 This is a cross-sectional structural diagram of the head frame of this utility model.

[0031] Legend:

[0032] 1. Cargo bucket frame; 2. Head frame; 3. Positioning mechanism; 31. Sleeve; 32. Positioning shaft; 33. Inclined groove; 34. Positioning spring; 35. Slide rod; 36. Top rod; 37. Strong magnetic block; 4. Connecting frame; 5. Connecting block; 6. Through hole; 7. Protective mechanism; 71. Slide plate; 72. Slide groove; 73. Guide rod; 74. Limiting block; 75. Return spring. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 - Figure 3 One embodiment of this utility model is a tractor traction device, which includes a cargo box frame 1, a head frame 2, and a positioning mechanism 3.

[0035] The inner wall of the hopper frame 1 is hinged with a connecting frame 4. The left end of the connecting frame 4 has an opening for the docking of the connecting block 5 and the connecting frame 4. The hopper frame 1 and the connecting frame 4 are hinged together, allowing the connecting frame 4 to swing slightly up and down, so that the hopper has a certain degree of flexibility when moving in the uneven tobacco field.

[0036] A connecting block 5 is fixedly connected to the inner wall of the head frame 2. A through hole 6 is opened on the inner wall of the connecting block 5. The inner diameter of the through hole 6 is equal to the outer diameter of the positioning shaft 32. Through the cooperation of the through hole 6 and the positioning shaft 32, the connecting block 5 can be connected to the connecting frame 4 and rotated slightly to adapt to the head steering system. A protective mechanism 7 is provided on the inner wall of the head frame 2.

[0037] Reference Figure 2 - Figure 4 The positioning mechanism 3 includes a sleeve 31, which is fixedly connected to the outer wall of the connecting frame 4. A positioning shaft 32 is slidably connected to the inner wall of the connecting frame 4. The positioning shaft 32 is made of a magnetic metal material, such as iron. By using the positioning shaft 32 in conjunction with the through hole 6, the connecting block 5 can be radially limited inside the opening at the left end of the connecting frame 4, thus connecting the tractor head and the cargo box together. The inner wall of the positioning shaft 32 has an inclined groove 33. A positioning spring 34 is fixedly connected between the inner wall of the sleeve 31 and the outer wall of the positioning shaft 32. By pushing the positioning shaft 32 through the positioning spring 34, the positioning shaft 32 can slide on the inner wall of the connecting frame 4 and insert into the through hole 6. A sliding rod 35 is slidably connected to the inner wall of the connecting frame 4. A push rod 36 is fixedly connected to the side wall of the sliding rod 35. The end of the push rod 36 away from the sliding rod 35 passes through the sleeve 31 and fits against the inner wall of the inclined groove 33. When the sliding rod 35 is pushed to cause the push rod 36 to press the inclined groove 33, the positioning shaft 32 will be subjected to axial thrust from the push rod 36, so that the positioning shaft 32 can slide on the inner wall of the connecting frame 4. The sliding rod 35 and the sleeve 31 are slidably connected at the through-hole 6. A strong magnetic block 37 is fixedly connected to the inner wall of the through hole 6. The strong magnetic block 37 is a high-performance neodymium iron boron magnet. The high-performance neodymium iron boron magnet can resist demagnetization caused by external magnetic field, vibration and temperature change, and has strong long-term stability. The surface of the strong magnetic block 37 is treated with electroplated nickel copper nickel or epoxy resin coating, which has excellent anti-corrosion and waterproof performance and can withstand mud, water and humid environment for a long time. The end of the positioning shaft 32 away from the positioning spring 34 is inserted into the inner wall of the through hole 6 and magnetically cooperates with the strong magnetic block 37. The positioning shaft 32 can be axially limited to the inner wall of the through hole 6 by the magnetic attraction between the strong magnetic block 37 and the positioning shaft 32.

[0038] Reference Figure 2 - Figure 4The protective mechanism 7 includes a sliding plate 71, which is slidably connected to the inner wall of the head frame 2. The inner wall of the sliding plate 71 has a groove 72. The groove 72 and the guide rod 73 can radially limit the return spring 75 to prevent the return spring 75 from bending and deforming. The guide rod 73 is fixedly connected to the inner wall of the head frame 2. The guide rod 73 is slidably connected to the inner wall of the groove 72. The guide rod 73 can provide guidance for the sliding plate 71 to make it slide more smoothly. A limit block 74 is fixedly connected to one end of the guide rod 73 near the through hole 6. The left side of the limit block 74 is fixedly connected to the inner wall of the groove 72. The return spring 75 can be driven to slide and return to its original position on the inner wall of the head frame 2 by the elastic cooperation of the return spring 75 with the limit block 74.

[0039] Working principle: When in use, first use bolts to fix the bucket frame 1 to the tractor bucket, and then use bolts to fix the head frame 2 to the tractor head. At this time, the connecting block 5 and the connecting frame 4 can be used to drive the bucket to move when the head moves.

[0040] When it is necessary to separate the machine head from the shelf, simply push the slide bar 35 to slide it on the inner wall of the connecting frame 4. The slide bar 35 drives the top rod 36 to press the inclined groove 33. At this time, under the guidance of the inclined groove 33, the positioning shaft 32 will be subjected to the axial thrust from the top rod 36, which can make the positioning shaft 32 detach from the attraction of the strong magnetic block 37 and slide into the inside of the sleeve 31. At the same time, the positioning shaft 32 will move out from the inside of the through hole 6 and compress the positioning spring 34. This will release the limit on the connecting block 5. Then move the machine head frame 2 to pull the connecting block 5 out from the inside of the connecting frame 4 to separate the connecting block 5 from the connecting frame 4. In this way, the machine head can be separated from the hopper.

[0041] When it is necessary to reconnect the separated machine head and the cargo bucket, first push the slide rod 35 to drive the top rod 36 to squeeze the inclined groove 33. At this time, under the guidance of the inclined groove 33, the positioning shaft 32 will be subjected to the axial thrust from the top rod 36, causing the positioning shaft 32 to slide into the sleeve 31 and compress the positioning spring 34. In this way, the connecting block 5 can be inserted into the opening at the left end of the connecting frame 4, so that the through hole 6 is aligned with the positioning shaft 32. Then release the slide rod 35 so that it no longer drives the top rod 36 to squeeze the inclined groove 33, so that the positioning shaft 32 is freed from the compression of the top rod 36. At this time, the previously compressed positioning spring 34 will push the positioning shaft 32, so that the positioning shaft 32 slides on the inner wall of the connecting frame 4 and inserts into the through hole 6 and is attracted together with the strong magnet 37. At this time, by using the positioning shaft 32 in conjunction with the through hole 6, the connecting block 5 can be radially limited in the opening at the left end of the connecting frame 4, so that the machine head and the cargo bucket can be reconnected.

[0042] When the connecting block 5 is inserted into the opening at the left end of the connecting frame 4, the sliding plate 71 will be squeezed by the connecting frame 4, causing the sliding plate 71 to slide into the head frame 2. At the same time, the sliding plate 71 will stretch the return spring 75, thus exposing the through hole 6 opened on the inner wall of the connecting block 5, so that the positioning shaft 32 can be inserted into it. When the connecting block 5 is separated from the connecting frame 4, the previously stretched return spring 75 will pull the sliding plate 71, causing it to slide out of the head frame 2. At this time, the sliding plate 71 will block the openings at both ends of the through hole 6, preventing soil from the tobacco field from splashing into the through hole 6 during the operation of the head frame and causing the through hole 6 to become blocked.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tractor traction device, characterized in that: include: A cargo container frame (1) has a connecting frame (4) hinged to its inner wall; Machine head frame (2), the inner wall of the machine head frame (2) is fixedly connected to a connecting block (5), the inner wall of the connecting block (5) is provided with a through hole (6), and the inner wall of the machine head frame (2) is provided with a protective mechanism (7); The positioning mechanism (3) includes a sleeve (31), which is fixedly connected to the outer wall of the connecting frame (4). The inner wall of the connecting frame (4) is slidably connected to a positioning shaft (32). The inner wall of the positioning shaft (32) is provided with an inclined groove (33). A positioning spring (34) is fixedly connected between the inner wall of the sleeve (31) and the outer wall of the positioning shaft (32). A slide rod (35) is slidably connected to the inner wall of the connecting frame (4). A top rod (36) is fixedly connected to the side wall of the slide rod (35).

2. The tractor traction device according to claim 1, characterized in that: The protective mechanism (7) includes a sliding plate (71), which is slidably connected to the inner wall of the head frame (2), and the inner wall of the sliding plate (71) is provided with a groove (72).

3. The tractor traction device according to claim 2, characterized in that: The inner wall of the head frame (2) is fixedly connected to a guide rod (73), which is slidably connected to the inner wall of the slide groove (72).

4. The tractor traction device according to claim 3, characterized in that: A limit block (74) is fixedly connected to one end of the guide rod (73) near the through hole (6).

5. The tractor traction device according to claim 4, characterized in that: A return spring (75) is fixedly connected between the left side of the limiting block (74) and the inner wall of the slide (72).

6. The tractor traction device according to claim 1, characterized in that: The end of the top rod (36) away from the slide rod (35) passes through the sleeve (31) and fits against the inner wall of the inclined groove (33). The slide rod (35) and the sleeve (31) are slidably connected at the point of penetration.

7. The tractor traction device according to claim 1, characterized in that: A strong magnetic block (37) is fixedly connected to the inner wall of the through hole (6).

8. The tractor traction device according to claim 7, characterized in that: The inner diameter of the through hole (6) is equal to the outer diameter of the positioning shaft (32). The end of the positioning shaft (32) away from the positioning spring (34) is inserted into the inner wall of the through hole (6) and magnetically engages with the strong magnet (37).

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