Wear-resistant tractor of full trailer

Abstract

The utility model discloses a wear-resistant tractor of a full trailer, and relates to the technical field of tractors. The traction device comprises a traction seat and a traction rod, a butt joint assembly used for connecting the traction seat and the traction rod is arranged on the surface of the traction seat, a manual control assembly used for controlling the butt joint assembly to operate is arranged on the surface of the traction seat, and a mounting plate is arranged on the left side of the traction seat. A buffer assembly used for buffering the traction seat is arranged on the surface of the mounting plate, a mounting lug is fixedly connected to the left side face of the mounting plate, the butt joint assembly comprises a pin shaft, and a notch is formed in the right side face of the traction seat. Compared with the prior art, the structural strength of the connecting position is effectively improved, larger traction force can be borne, a non-rigid connection mode is adopted, vibration can be buffered in the traction process, and therefore the tractor is prevented from being damaged by the vibration.

Description

Technical Field

[0001] The utility model relates to the technical field of tractors, in particular to a wear-resistant tractor for a full trailer. Background Art

[0002] A trailer tractor is a device that can be connected to the traction device at the rear chassis of a motor vehicle. After being connected to the traction device at the rear chassis of a motor vehicle, the trailer tractor can move the motor vehicle by moving the trailer, so that rescue work can be carried out on the motor vehicle when it is damaged.

[0003] The Chinese patent document with publication number CN110641235A discloses a vehicle traction anti-loosening locking device, including a vehicle traction connection square and a connection bracket, the connection bracket is provided with a clamping lever, a handle lever, and a connection lever, the positioning end of the clamping lever is hinged on the connection bracket, and the connection end of the clamping lever is hinged on the connection end of the handle lever. With respect to the above technical solution, there are still the following defects: the existing technology realizes locking by cooperating with the locking buckle and the buckle joint, but the connection position is relatively weak and difficult to withstand large traction, and the connection is rigidly connected, which is more prone to damage when the road is bumpy and vibrating.

[0004] For this reason, a wear-resistant tractor for a full trailer is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems mentioned in the above background technology, and provide a wear-resistant tractor for a full trailer.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A wear-resistant tractor for a full trailer comprises a traction seat and a traction rod, wherein a docking assembly for connecting the traction seat and the traction rod is arranged on the surface of the traction seat, a manual control assembly for controlling the operation of the docking assembly is arranged on the surface of the traction seat, a mounting plate is arranged on the left side of the traction seat, a buffer assembly for buffering the traction seat is arranged on the surface of the mounting plate, and a mounting ear is fixedly connected to the left side surface of the mounting plate.

[0008] Furthermore, the docking assembly includes a pin shaft, a recess is provided on the right side surface of the traction seat, an axial hole allowing the pin shaft to pass through is provided at the bottom of the inner wall of the recess, a docking seat is fixedly connected to the top of the inner wall of the recess, and the inner wall of the docking seat is movably connected to the pin shaft, and the left end of the traction rod is fixedly connected to a connecting ring, and the inner wall of the connecting ring is slidably connected to the pin shaft.

[0009] Further, the manual control assembly includes a screw rod, and the screw rod is rotatably connected to the inner wall of the traction seat, the surface of the screw rod is threadedly connected to a connecting rod, and the end of the connecting rod is fixedly connected to a pin shaft, the inner wall of the traction seat is fixedly connected to a sliding column, and the connecting rod is slidably connected to the sliding column, the surface of the screw rod is threadedly connected to a worm gear, the inner wall of the traction seat is rotatably connected to a worm, and the worm gear is meshed with the worm gear, and the front end of the worm gear is fixedly connected to a knob.

[0010] Furthermore, the buffer assembly includes a limit column, and the limit column is fixedly connected to the inner wall of the mounting plate, a sliding sleeve is slidably connected to the surface of the limit column, and the end of the sliding sleeve is fixedly connected to the traction seat, a spring is fixedly connected to the bottom of the inner wall of the mounting plate, and the free end of the spring is fixedly connected to the sliding sleeve, a damping rod is fixedly installed on the top of the inner wall of the mounting plate, and the telescopic end of the damping rod is fixedly connected to the sliding sleeve.

[0011] Furthermore, mounting holes are formed through the surfaces of the mounting ears and the traction rod.

[0012] Furthermore, the pin shaft surface, the connecting ring surface and the inner wall of the recess are all sprayed with a wear-resistant coating.

[0013] The beneficial effects of the utility model are as follows:

[0014] When connection is required, the mounting ear and the towing rod are fixed on the trailer and the tractor respectively, the towing rod is brought close to the towing seat, the docking assembly is controlled by the manual control assembly to connect the towing rod, and during the towing process, the vibration is buffered by the buffer assembly, which facilitates the rapid towing connection of the trailer. Compared with the prior art, the structural strength of the connection position is effectively improved, and it can withstand greater traction force. In addition, a non-rigid connection method is adopted, which can buffer the vibration during the towing process, thereby avoiding damage to the tractor caused by vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a front cross-sectional view of the structure of the fifth wheel of the utility model;

[0017] Figure 3 It is a right view of the mounting plate structure of the utility model;

[0018] Figure numerals: 1. traction seat; 2. traction rod; 3. docking assembly; 301. pin; 302. shaft hole; 303. docking seat; 304. connecting ring; 4. manual control assembly; 401. screw; 402. connecting rod; 403. worm gear; 404. worm; 405. knob; 406. sliding column; 5. mounting plate; 6. mounting ear; 7. buffer assembly; 701. limit column; 702. sliding sleeve; 703. spring; 704. damping rod. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] like Figures 1 to 3As shown, a wear-resistant tractor for a full trailer includes a traction seat 1 and a traction rod 2. A docking assembly 3 for connecting the traction seat 1 and the traction rod 2 is provided on the surface of the traction seat 1. A manual control assembly 4 for controlling the operation of the docking assembly 3 is provided on the surface of the traction seat 1. A mounting plate 5 is provided on the left side of the traction seat 1. A buffer assembly 7 for buffering the traction seat 1 is provided on the surface of the mounting plate 5. A mounting ear 6 is fixedly connected to the left side of the mounting plate 5. More specifically, when connection is required, the mounting ear 6 and the traction rod 2 are respectively fixed on the trailer and the tractor, the traction rod 2 is brought close to the traction seat 1, the docking assembly 3 is controlled to operate by the manual control assembly 4, and the traction rod 2 is connected. During the traction process, the vibration generated is buffered by the buffer assembly 7.

[0024] The docking assembly 3 includes a pin 301, a notch is provided on the right side of the traction seat 1, and an axial hole 302 is provided at the bottom of the inner wall of the notch to allow the pin 301 to pass through. A docking seat 303 is fixedly connected to the top of the inner wall of the notch, and the inner wall of the docking seat 303 is movably plugged with the pin 301. A connecting ring 304 is fixedly connected to the left end of the traction rod 2, and the inner wall of the connecting ring 304 is slidably connected with the pin 301. It should be noted that when the traction connection is performed, the connecting ring 304 is inserted into the notch, and the pin 301 is controlled by the manual control assembly 4 to pass through the axial hole 302 and rise. At the same time, the pin 301 will pass through the connecting ring 304 and finally be inserted into the inner wall of the docking seat 303, thereby achieving connection with the traction rod 2.

[0025] The manual control assembly 4 includes a screw rod 401, and the screw rod 401 is rotatably connected to the inner wall of the traction seat 1, a connecting rod 402 is threadedly connected to the surface of the screw rod 401, and the end of the connecting rod 402 is fixedly connected to the pin 301, a sliding column 406 is fixedly connected to the inner wall of the traction seat 1, and the connecting rod 402 is slidably connected to the sliding column 406, a worm wheel 403 is threadedly connected to the surface of the screw rod 401, a worm 404 is rotatably connected to the inner wall of the traction seat 1, and the worm 404 is meshed with the worm wheel 403, and a knob 405 is fixedly connected to the front end of the worm 404. More specifically, by rotating the knob 405, the knob 405 is driven to rotate, thereby driving the worm wheel 403 meshed with it to rotate, and then driving the screw rod 401 to rotate, and under the action of the thread, the connecting rod 402 is driven to slide along the surface of the sliding column 406, so that the pin 301 can be driven to move.

[0026] The buffer assembly 7 includes a limit column 701, and the limit column 701 is fixedly connected to the inner wall of the mounting plate 5, a sleeve 702 is slidably connected to the surface of the limit column 701, and the end of the sleeve 702 is fixedly connected to the traction seat 1, a spring 703 is fixedly connected to the bottom of the inner wall of the mounting plate 5, and the free end of the spring 703 is fixedly connected to the sleeve 702, a damping rod 704 is fixedly installed on the top of the inner wall of the mounting plate 5, and the telescopic end of the damping rod 704 is fixedly connected to the sleeve 702. It should be noted that when the traction vehicle vibrates, the sleeve 702 will slide along the surface of the limit column 701, causing elastic deformation to the spring 703, and the vibration is buffered by the spring 703, and the damping rod 704 will damp the vibration, further buffering.

[0027] The surfaces of the mounting ears 6 and the traction rod 2 are penetrated with mounting holes. More specifically, by providing the mounting holes, it is convenient for the mounting ears 6, the traction rod 2 to cooperate with the bolts, so that the traction rod 2 and the mounting ears 6 are respectively installed on the trailer and the traction vehicle.

[0028] The surface of the pin 301, the surface of the connecting ring 304 and the inner wall of the notch are all sprayed with a wear-resistant coating. It should be noted that by providing a wear-resistant coating at the contact position of the pin 301, the shaft hole 302 and the notch, the wear resistance of the tractor surface is improved and the wear process of the tractor surface is slowed down.

[0029] In summary: when connection is required, the mounting ear 6 and the towing rod 2 are fixed on the trailer and the tractor respectively, the towing rod 2 is brought close to the towing seat 1, the docking assembly 3 is controlled by the manual control assembly 4 to connect the towing rod 2, and during the towing process, the vibration is buffered by the buffer assembly 7, which makes it easy to quickly tow and connect the trailer. Compared with the prior art, the structural strength of the connection position is effectively improved, and it can withstand greater traction force. In addition, a non-rigid connection method is adopted, which can buffer the vibration during the towing process, thereby avoiding damage to the tractor caused by vibration.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A wear-resistant tractor for a trailer, characterized in that: The invention comprises a traction seat (1) and a traction rod (2); a docking assembly (3) for connecting the traction seat (1) and the traction rod (2) is arranged on the surface of the traction seat (1); a manual control assembly (4) for controlling the operation of the docking assembly (3) is arranged on the surface of the traction seat (1); a mounting plate (5) is arranged on the left side of the traction seat (1); a buffer assembly (7) for buffering the traction seat (1) is arranged on the surface of the mounting plate (5); and a mounting ear (6) is fixedly connected to the left side of the mounting plate (5).

2. The wear-resistant tractor for a trailer according to claim 1, characterized in that: The docking assembly (3) comprises a pin shaft (301), a notch is provided on the right side surface of the traction seat (1), an axial hole (302) is provided through the bottom of the inner wall of the notch to allow the pin shaft (301) to pass through, a docking seat (303) is fixedly connected to the top of the inner wall of the notch, and the inner wall of the docking seat (303) is movably plugged with the pin shaft (301), and a connecting ring (304) is fixedly connected to the left end of the traction rod (2), and the inner wall of the connecting ring (304) is slidably connected to the pin shaft (301).

3. The wear-resistant tractor for a trailer according to claim 2, characterized in that: The manual control assembly (4) comprises a screw rod (401), and the screw rod (401) is rotatably connected to the inner wall of the traction seat (1); a connecting rod (402) is threadedly connected to the surface of the screw rod (401), and the end of the connecting rod (402) is fixedly connected to the pin shaft (301); a sliding column (406) is fixedly connected to the inner wall of the traction seat (1), and the connecting rod (402) is slidably connected to the sliding column (406); a worm wheel (403) is threadedly connected to the surface of the screw rod (401); a worm (404) is rotatably connected to the inner wall of the traction seat (1), and the worm (404) is meshed with the worm wheel (403); and a knob (405) is fixedly connected to the front end of the worm (404).

4. The wear-resistant tractor for a trailer according to claim 1, characterized in that: The buffer assembly (7) comprises a limit column (701), and the limit column (701) is fixedly connected to the inner wall of the mounting plate (5); a sliding sleeve (702) is slidably connected to the surface of the limit column (701), and the end of the sliding sleeve (702) is fixedly connected to the traction seat (1); a spring (703) is fixedly connected to the bottom of the inner wall of the mounting plate (5), and the free end of the spring (703) is fixedly connected to the sliding sleeve (702); a damping rod (704) is fixedly installed on the top of the inner wall of the mounting plate (5), and the telescopic end of the damping rod (704) is fixedly connected to the sliding sleeve (702).

5. The wear-resistant tractor for a trailer according to claim 1, characterized in that: The surfaces of the mounting ear (6) and the traction rod (2) are both penetrated with mounting holes.

6. The wear-resistant tractor for a trailer according to claim 2, characterized in that: The surface of the pin shaft (301), the surface of the connecting ring (304) and the inner wall of the notch are all sprayed with a wear-resistant coating.

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