Tractor lower pull rod

Abstract

The utility model relates to the technical field of tractor lower pull rods, in particular to a tractor lower pull rod which comprises a tractor lower pull rod body, installation grooves are formed in the left side and the right side of the tractor lower pull rod body respectively, gaskets are arranged on the portions, located above the installation grooves, of the tractor lower pull rod body, and installation rods are arranged in the installation grooves in a penetrating mode. Limiting grooves are formed in the surfaces of the upper end and the lower end of the mounting rod, external threads are arranged outside the lower end of the mounting rod, the mounting rod is sleeved with a reinforcing lantern ring, the left side and the right side of the upper end face of the reinforcing lantern ring are each provided with two connecting plates, a movable block is arranged between the two connecting plates, and movable rods clamped into the limiting grooves are arranged above the movable blocks; by reinforcing the connection mode between the lower pull rod and the machine tool, the connection stability is improved, and meanwhile the follow-up working efficiency is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of tractor lower control rod technology, and in particular to a tractor lower control rod. Background Technology

[0002] Tractors are self-propelled power units used to traction and drive work machinery to complete various mobile operations. They can also be used as power for stationary operations. They consist of an engine, transmission, travel, steering, hydraulic suspension, power output, electrical instruments, driving control, and traction systems or devices. In normal use, tractor tie rods are mainly used to connect corresponding implements such as plows, rotary tillers, and harrows for field operations.

[0003] The existing patent publication number CN218483191U discloses a tractor lower lever structure, including a suspension lower lever, a pin hole, and a cotter pin. A washer is provided on the left rear end of the suspension lower lever, and the inner ring of the washer is connected to the outer end face of the pin shaft. A pin hole for locking pin positioning is opened at the rear end of the top of the pin shaft, and the pin shaft passes through the left end of the rear end face of the suspension lower lever. The cotter pin is connected to the inner side of the through hole and is located below the pin shaft. The locking pin passes through the inner side of the pin hole, and the through hole is opened at the bottom outer side of the locking pin. A locking pin ring is rotatably installed on the top outer side of the locking pin, and the inner side of the locking pin ring is pressed against the rear outer side of the pin shaft. After the locking pin passes through the pin hole, rotating the locking pin ring rotates it to the rear outer side of the pin shaft, and the locking pin ring is pressed against the pin shaft by its own elasticity, thus achieving locking pin positioning. Simultaneously, the cotter pin is inserted into the inner side of the through hole for installation, providing a second layer of fixing protection for the locking pin, thereby improving the stability of the locking pin installation.

[0004] In the current process of fixing the tractor lower lever to the implement, it is usually fixed with fastening bolts. However, under the bumps of long-term operation, the fastening bolts may come loose due to the vibration caused by the bumps, affecting the stability of the installation, causing some trouble, and affecting the subsequent work efficiency, resulting in a decrease in work efficiency, affecting the overall use of the tractor, bringing people a bad user experience, and affecting the use effect of the implement.

[0005] Therefore, to address the problem that the existing tractor lower lever connection structure between the tractor and the implement is not stable enough and is prone to falling off, thus affecting subsequent work efficiency, a new tractor lower lever can be designed. By reinforcing the connection between the lower lever and the implement, the stability of the connection can be improved, and subsequent work efficiency can be enhanced. Utility Model Content

[0006] In order to overcome the problem that the existing tractor lower lever connection structure between the tractor and the implement is not stable enough and is prone to falling off, thus affecting subsequent work efficiency.

[0007] The technical solution of this utility model is as follows: a tractor pull rod, including a tractor pull rod body, with mounting grooves opened on the left and right sides of the tractor pull rod body, and a washer set on the tractor pull rod body above the mounting groove, with a mounting rod passing through the inside of the mounting groove, and limit grooves opened on the surfaces of the upper and lower ends of the mounting rod, with external threads on the outside of the lower end of the mounting rod, and a reinforcing collar sleeved on the outside of the mounting rod, with two connecting plates on the left and right sides of the upper end face of the reinforcing collar, and a movable block set between the two connecting plates, with a movable rod that engages with the limit groove above the movable block.

[0008] Preferably, the mounting rod is sealed and fixed by a washer inserted into the upper part of the mounting groove. The external thread of the lower end of the mounting rod is inserted through and fixed into the mounting groove opened inside the tractor lower rod body. After the fixing is completed, the reinforcing collar is fitted onto the outside of the mounting rod, and the positioning pins of the four ends of the collar are inserted into the four positioning slots opened on the upper surface of the washer for fixing. Then, the rotation of the movable shaft drives the movable block to fold, and at the same time, the movable rod above the movable block folds and is locked into the limiting grooves opened on the upper and lower surfaces of the mounting rod for fixing. By reinforcing the connection between the lower rod and the implement, the stability of the connection is improved, and the subsequent work efficiency is enhanced.

[0009] Preferably, the inner wall of the mounting groove is provided with internal threads, and the mounting rod is inserted into the mounting groove and passes through it by engaging with the internal threads through the external threads.

[0010] Preferably, each of the four ends of the upper surface of the washer is provided with a positioning slot, and each of the four ends of the lower surface of the reinforcing collar is fixedly provided with a positioning rod, which is inserted into the positioning slot.

[0011] Preferably, a movable shaft is provided between the movable block and the two connecting plates.

[0012] Preferably, a rubber pad is fitted onto the outer surface of the movable rod.

[0013] Preferably, the reinforcing collar has a through hole inside, through which the mounting rod passes.

[0014] Preferably, the washer is made of one piece of rubber and is inserted into the mounting groove.

[0015] The beneficial effects of this utility model are:

[0016] The tractor pull rod is sealed and fixed by a washer inserted into the upper part of the mounting slot. The external thread on the lower end of the mounting rod is inserted through and fixed into the mounting slot inside the tractor pull rod body. After fixing, the reinforcing collar is fitted onto the outside of the mounting rod, and the positioning pins of the four ends of the collar are inserted into the four positioning slots on the upper surface of the washer for fixing. The rotation of the movable shaft drives the movable block to fold, and at the same time, the movable rod above the movable block folds and is locked into the limiting grooves on the upper and lower surfaces of the mounting rod for fixing. By reinforcing the connection between the pull rod and the implement, the stability of the connection is improved, and the subsequent work efficiency is enhanced. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the tractor lower lever of this utility model;

[0018] Figure 2 The image shown is a side view of the three-dimensional structure of the tractor lower pull rod of this utility model;

[0019] Figure 3 The diagram shown is a partial three-dimensional structural schematic of the tractor lower lever of this utility model;

[0020] Figure 4 This utility model is shown. Figure 3 A magnified schematic diagram of the three-dimensional structure at point A;

[0021] Figure 5 This utility model is shown. Figure 4 A magnified schematic diagram of the three-dimensional structure at point B.

[0022] Explanation of reference numerals in the attached drawings: 1. Tractor lower lever body; 2. Mounting slot; 3. Mounting rod; 4. Washer; 5. Reinforcing collar; 6. Positioning slot; 7. Limiting slot; 8. External thread; 9. Movable rod; 10. Positioning insert rod; 11. Movable block; 12. Connecting plate; 13. Movable shaft. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figures 1-5This utility model provides an embodiment: a tractor pull rod, including a tractor pull rod body 1, with mounting grooves 2 on both the left and right sides of the tractor pull rod body 1, and a washer 4 above the mounting grooves 2. A mounting rod 3 is inserted through the mounting grooves 2, and limit grooves 7 are formed on the surfaces of both the upper and lower ends of the mounting rod 3. An external thread 8 is provided on the lower end of the mounting rod 3, and a reinforcing collar 5 is sleeved on the outside of the mounting rod 3. Two connecting plates 12 are provided on both the left and right sides of the upper end face of the reinforcing collar 5, and a movable block 11 is provided between the two connecting plates 12. A movable rod 9 that engages with the limit groove 7 is provided above the movable block 11.

[0025] Please see Figures 1-3 In this embodiment, the inner wall of the mounting groove 2 is provided with an internal thread. The mounting rod 3 is inserted into the mounting groove 2 through the engagement of the external thread 8 and the internal thread. The four ends of the upper surface of the washer 4 are provided with positioning slots 6. The four ends of the lower surface of the reinforcing collar 5 are fixedly provided with positioning rods 10. The positioning rods 10 are inserted into the positioning slots 6. The movable shaft 13 is movably provided between the movable block 11 and the two connecting plates 12. It is sealed and fixed by the washer 4 inserted inside the upper part of the mounting groove 2. The external thread 8 of the lower end of the mounting rod 3 is engaged and inserted into the mounting groove 2 opened inside the tractor lower rod body 1 for fixation. After the fixation is completed, the reinforcing collar 5 is sleeved on the outside of the mounting rod 3, and the positioning rods 10 of the four ends below it are inserted into the four positioning slots 6 opened on the upper surface of the washer 4 for fixation.

[0026] Please see Figures 3-5 In this embodiment, a rubber pad is fitted onto the outer surface of the movable rod 9, and a through hole is provided inside the reinforcing collar 5. The mounting rod 3 and the reinforcing collar 5 pass through the through hole. The washer 4 is made of rubber and is inserted into the mounting groove 2. After the washer 4 is fixed, the reinforcing collar 5 is fitted onto the outside of the mounting rod 3. The positioning pins 10 of the four ends below it are inserted into the four positioning slots 6 opened on the upper surface of the washer 4 for fixing. The movable block 11 is folded by the rotation of the movable shaft 13. At the same time, the movable rod 9 above the movable block 11 is folded and inserted into the limiting grooves 7 opened on the upper and lower surfaces of the mounting rod 3 for fixing. By reinforcing the connection between the pull rod and the machine, the stability of the connection is improved, and the subsequent work efficiency is enhanced.

[0027] During operation, the washer 4 inserted into the upper part of the mounting groove 2 is used to seal and fix it. The external thread 8 of the lower end of the mounting rod 3 is inserted into the mounting groove 2 opened inside the tractor lower rod body 1 for fixation. After fixation, the reinforcing collar 5 is sleeved on the outside of the mounting rod 3, and the positioning pins 10 of the four end feet below it are inserted into the four positioning slots 6 opened on the upper end surface of the washer 4 for fixation. The rotation of the movable shaft 13 drives the movable block 11 to fold, and at the same time, the movable rod 9 above the movable block 11 folds and is inserted into the limiting grooves 7 opened on the upper and lower end surfaces of the mounting rod 3 for fixation. By reinforcing the connection between the lower rod and the tool, the stability of the connection is improved, and the subsequent work efficiency is enhanced.

[0028] Through the above steps, the gasket 4 inserted into the upper part of the mounting groove 2 is used to seal and fix it. The external thread 8 on the lower end of the mounting rod 3 is engaged and inserted into the mounting groove 2 opened inside the tractor lower rod body 1 for fixation. This solves the problem that the existing connection structure between the tractor lower rod and the implement is not stable enough and is easy to fall off, which affects the subsequent work efficiency.

Claims

1. A tractor drawbar comprising a tractor drawbar body (1) characterised in that: The tractor lower pull rod body (1) is provided with installation grooves (2) on the left and right sides of the inside, the tractor lower pull rod body (1) is provided with a gasket (4) above the installation grooves (2), the installation grooves (2) are provided with installation rods (3) penetrating the inside, the upper and lower ends of the installation rods (3) are provided with limiting grooves (7) on the surfaces, the outer part of the lower end of the installation rods (3) is provided with external threads (8), the outer part of the installation rods (3) is provided with a reinforcing sleeve ring (5), the left and right sides of the upper end surface of the reinforcing sleeve ring (5) are provided with two connecting plates (12), the two connecting plates (12) are provided with movable blocks (11), the movable blocks (11) are provided with movable rods (9) clamped into the limiting grooves (7) above.

2. A drawbar according to claim 1, wherein: The inner wall of the installation groove (2) is provided with internal threads, the installation rods (3) are inserted into the installation groove (2) and penetrate the same through the engagement of the external threads (8) and the internal threads.

3. The drawbar according to claim 1, wherein: The four end feet of the surface of the upper end surface of the gasket (4) are provided with positioning insertion grooves (6), the four end feet of the lower end surface of the reinforcing sleeve ring (5) are fixedly provided with positioning insertion rods (10), and the positioning insertion rods (10) are inserted into the positioning insertion grooves (6).

4. The drawbar according to claim 1, wherein: The movable blocks (11) and the two connecting plates (12) are provided with movable shafts (13) penetrating and movably arranged therebetween.

5. The drawbar according to claim 1, wherein: The outer surface of the movable rod (9) is provided with a rubber pad.

6. The drawbar according to claim 1, wherein: The inside of the reinforcing sleeve ring (5) is provided with a through hole, and the installation rod (3) penetrates the reinforcing sleeve ring (5) through the through hole.

7. The drawbar according to claim 1, wherein: The gasket (4) is made of rubber material in one piece, and the gasket (4) is clamped into the installation groove (2).

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