Floating supporting traction frame

Abstract

The utility model relates to the technical field of vehicle traction frames, in particular to a floating supporting traction frame. Comprising a traction rod, a buffer spring, a mounting bracket, a connecting frame, a floating supporting shaft, a sleeve and a frame. The frame is fixed on the sleeve, the floating supporting shaft penetrates through the sleeve, the upper end of the floating supporting shaft is fixed on the connecting frame, and the lower end of the floating supporting shaft is connected with a tire. And the floating support shaft is rotationally connected with the sleeve through a tapered roller bearing. The installation support is fixed to the connecting frame, the traction rod penetrates through the installation support and is connected with the connecting frame through the nut, and the buffer spring is arranged on the traction rod in a sleeving mode and arranged on the outer side of the installation support. Through the design of the floating support and the sleeve, the traction end and the towed end can rotate by a large angle, and the turning radius is reduced. And a dragged vehicle can be supported, and the effects of floating supporting and dragging of the vehicle are achieved. And the impact load is buffered, the structure is simple, and the manufacturing cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle towing frames, and particularly relates to a floating support towing frame. Background Art

[0002] At present, an automobile towing frame is a structural member used to connect a towing vehicle and transmit traction force. The existing towing frames still have the following disadvantages in design:

[0003] 1. The Chinese utility model patent with the publication number CN221315684U discloses a towing device for a tractor. The device mainly consists of three parts, namely a connection assembly, a bearing box, and a fixed seat connected to the tractor. The fixed seat is connected to the tractor through a pin shaft. The connection assembly is composed of a forward and reverse ball screw, a movable seat, a connecting rod, and a mounting plate. One end of the forward and reverse ball screw is connected to a motor. Under the rotation of the motor, the ball screw rotates, causing the mounting plates to approach and separate from each other to adapt to connecting bodies of different widths. The upper end of the bearing box contacts the connection assembly, and the lower end is connected to the fixed seat through a rotating shaft. The design of the rotating shaft allows the fixed seat to rotate relative to the bearing box and adjust the rotation angle to adapt to connections at different angles. The above-mentioned utility model has a good design at the connection, enabling the towing frame to be applicable to vehicle heads of different sizes and improving the applicability of the device. However, during the towing process, the towing frame cannot make a rotational movement, making the turning process a problem, especially in some environments with relatively narrow spaces, and this problem is particularly significant.

[0004] 2. The Chinese utility model patent with the publication number CN221315683U discloses a tractor towing device. The device mainly consists of a front-end connection head part, a rear-end connection part, and an intermediate hydraulic buffer part. The front-end connection head part is composed of a mounting head, a T-shaped positioning rod, a push plate, a pull ring, a positioning pin, and a pulling spring. By pulling the pull ring, the positioning pin is pulled out of the pin hole. After aligning the connection between the mounting head and the vehicle body, the pull ring is released, and the positioning pin is inserted into the pin hole to achieve the connection. The rear-end connection part is composed of a connection head, a mounting block, and a towing rod. The intermediate hydraulic buffer part is composed of a connection cylinder, a fixed block, a reinforcing rib, and an internal hydraulic buffer part. When the vehicle starts and stops, due to the existence of the hydraulic buffer, the towing frame is not affected by the impact load, and the connection head part can rotate, allowing the vehicle body to make large-angle turns. However, the use of a hydraulic buffer for the towing frame will make the structure of the towing frame more complex, increasing the manufacturing difficulty and processing cost.

[0005] 3. During the towing operation, at the start and end of the towing operation, due to inertia, impact loads will inevitably be generated, which will greatly reduce the service life of the towing frame.

[0006] Therefore, in order to solve the above problems existing in the prior art, it is now urgent to improve the existing traction frame. Summary of the Invention

[0007] To solve the deficiencies existing in the prior art, the present utility model provides a floating support traction frame.

[0008] The technical solution of the present utility model is as follows:

[0009] A floating support traction frame, comprising a traction rod, a buffer spring, a mounting bracket, a connecting frame, a floating support shaft, a sleeve and a vehicle frame. The vehicle frame is fixed on the sleeve, the sleeve is arranged on the connecting frame, the floating support shaft passes through the sleeve, the upper end of the floating support shaft is fixed on the connecting frame, and the lower end is connected with a tire. The floating support shaft and the sleeve are rotationally connected through a tapered roller bearing. The mounting bracket is fixed on the connecting frame, the traction rod passes through the mounting bracket and is fixed on the connecting frame, and the buffer spring sleeve is arranged on the traction rod and outside the mounting bracket.

[0010] Further, a traction head is arranged on the traction rod, and the buffer spring is arranged between the traction head and the mounting bracket.

[0011] Further, the mounting bracket is arranged as a cuboid structure with a hollow interior and upper and lower openings.

[0012] Further, the connecting frame includes an upper connecting frame, a lower connecting frame and an upper cover plate. The upper connecting frame and the lower connecting frame are fixedly connected by bolts, the cross-section of the upper connecting frame is arranged as a triangular structure, the upper cover plate is horizontally arranged and connected to the top of the upper connecting frame by bolts. The lower connecting frame is symmetrically arranged with the upper connecting frame and the upper cover plate.

[0013] Even further, a connecting hole for the floating support shaft is arranged on the upper cover plate.

[0014] Further, the sleeve is arranged between the upper cover plate and the bottom plate of the lower connecting frame.

[0015] Further, the tapered roller bearing includes an upper tapered roller bearing and a lower tapered roller bearing, the upper tapered roller bearing is arranged on the upper part of the sleeve, and the lower tapered roller bearing is arranged on the lower part of the sleeve.

[0016] Even further, an upper sealing ring is arranged at the upper end of the upper tapered roller bearing, and a lower sealing ring is arranged at the lower end of the lower tapered roller bearing.

[0017] Further, the floating support shaft and the tire are connected through a support plate.

[0018] Further, the pallet includes an upper pallet and a lower pallet. The upper pallet is sleeved on the bottom end of the floating support shaft. The lower pallet is connected to the upper pallet by bolts and is provided with an axle fixing hole in the middle.

[0019] The beneficial effects achieved by the present utility model are as follows:

[0020] Through the design of the floating support and the sleeve, the traction end and the towed end of the present utility model can rotate at a large angle, reducing the turning radius. Moreover, the present utility model can support the towed vehicle, playing the roles of vehicle floating support and vehicle traction. By arranging buffer springs on the traction rod, the impact load is greatly buffered, the service life of the traction frame is improved, the structure is simple, and the manufacturing cost is low. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the overall structure of the present utility model.

[0022] Figure 2 is a schematic cross-sectional structure diagram of the present utility model.

[0023] In the figure, 01, vehicle frame; 02, sleeve; 03, upper cover plate; 04, upper connecting frame; 05, mounting bracket; 06, traction rod; 07, buffer spring; 08, lower connecting frame; 09, floating support shaft; 10, tire; 11, upper pallet; 12, lower pallet; 13, upper sealing ring; 14, upper tapered roller bearing; 15, lower tapered roller bearing; 16, lower sealing ring. Specific Embodiments

[0024] To facilitate the understanding of those skilled in the art of the present utility model, the specific embodiments of the present utility model will be described below with reference to the drawings.

[0025] As Figures 1-2 shown, in order to overcome the defects of the prior art, the present utility model designs a floating support traction frame. When the traction work starts and ends, the impact load can be effectively eliminated, and the designed traction frame allows large-angle turning, saving the turning space. Moreover, the present utility model has versatility and can play the role of traction and also has the role of floating support.

[0026] Specifically, it includes a drawbar 06, a buffer spring 07, a mounting bracket 05, an upper cover plate 03, an upper connecting frame 04, a lower connecting frame 08, a floating support shaft 09, a sleeve 02, an upper tapered roller bearing 14, a lower tapered roller bearing 15, an upper sealing ring 13, a lower sealing ring 16, and a vehicle frame 01. The vehicle frame 01 is arranged in a "zhi" - shaped structure and is welded to the sleeve 02. The sleeve 02 is arranged between the upper cover plate 03 and the bottom plate of the lower connecting frame 08. The floating support shaft 09 passes through the sleeve 02 and is rotatably connected by the upper tapered roller bearing 14 arranged on the upper part of the sleeve 02 and the lower tapered roller bearing 15 arranged on the lower part of the sleeve 02. The tapered roller bearing can bear the horizontal traction force and also the vertical floating support force. To prevent impurities from entering the bearing and affecting the service life of the bearing, an upper sealing ring 13 is arranged at the upper end of the upper tapered roller bearing 15, and a lower sealing ring 16 is arranged at the lower end of the lower tapered roller bearing 14.

[0027] The upper end of the floating support shaft 09 is fixed to the upper cover plate 03, and the lower end is connected to the tire 10 through an upper support plate 11 and a lower support plate 12. Specifically, the upper support plate 11 is sleeved on the bottom end of the floating support shaft 09, and the upper support plate 11 and the lower support plate 12 are connected by four bolts. Under the action of the bolt force, the upper support plate 11 and the lower support plate 12 are fixed to the axle of the tire 10 by static friction. The upper support plate 11 is connected to the axle, and the axle is inserted into the connection hole after the upper support plate 11 and the lower support plate 12 are butted and welded.

[0028] The mounting bracket 05 is fixed at the connection of the upper connecting frame 04 and the lower connecting frame 08 and is perpendicular to the side plates of the upper connecting frame and the lower connecting frame 08. The mounting bracket 05 is arranged in a cuboid structure with a hollow interior and open top and bottom. The upper connecting frame 04 and the lower connecting frame 08 are fixedly connected by bolts. The cross - section of the upper connecting frame 04 is arranged in a triangular structure. The upper cover plate 03 is horizontally arranged and is connected to the top of the upper connecting frame 04 by bolts. The lower connecting frame 08 is symmetrically arranged with the upper connecting frame and the upper cover plate 03. The drawbar 06 passes through the mounting bracket 05 and is connected to the connecting frame by a nut. The buffer spring 07 is sleeved on the drawbar 06 and is arranged outside the mounting bracket 05. Specifically, a draw head is arranged on the drawbar 06, and the buffer spring 07 is arranged between the draw head and the mounting bracket 05.

[0029] During the specific working process, the towing bar 06 at the front end of the towing frame is connected to the towing vehicle, and the sleeve 02 at the rear end of the towing frame is welded to the vehicle frame 01. At the beginning of the work, the towing power is transmitted through the towing bar 06 to the upper connecting frame 04 and the lower connecting frame 08, and then to the floating support shaft 09. The force is transmitted to the sleeve 02 through the upper tapered roller bearing 14 and the lower tapered roller bearing 15, and then the vehicle behind is towed. During the towing process, the load is transmitted to the towing frame through the tire 10. Therefore, the towing frame is subjected to both horizontal towing loads and vertical floating support loads, realizing floating support towing.

[0030] The embodiments of the present invention described above do not constitute a limitation on the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A floating support traction frame, characterized in that: It includes a drawbar (06), a buffer spring (07), a mounting bracket (05), a connecting frame, a floating support shaft (09), a sleeve (02) and a vehicle frame (01); the vehicle frame (01) is fixed on the sleeve (02), the sleeve (02) is arranged on the connecting frame, the floating support shaft (09) passes through the sleeve (02), the upper end of the floating support shaft (09) is fixed on the connecting frame, and the lower end is connected with a tire (10); the floating support shaft (09) is rotatably connected with the sleeve (02) through a tapered roller bearing; the mounting bracket (05) is fixed on the connecting frame, the drawbar (06) passes through the mounting bracket (05) and is fixed on the connecting frame, and the buffer spring (07) is sleeved on the drawbar (06) and arranged outside the mounting bracket (05).

2. The floating support traction frame according to claim 1, wherein: A draw head is arranged on the drawbar (06), and the buffer spring (07) is arranged between the draw head and the mounting bracket (05).

3. The floating support traction frame according to claim 1, characterized in that: The mounting bracket (05) is arranged as a cuboid structure with a hollow interior and upper and lower openings.

4. The floating support traction frame according to claim 1, characterized in that: The connecting frame includes an upper connecting frame (04), a lower connecting frame (08) and an upper cover plate (03); the upper connecting frame (04) and the lower connecting frame (08) are fixedly connected by bolts, the cross-section of the upper connecting frame (04) is arranged as a triangular structure, the upper cover plate (03) is horizontally arranged and connected with the top of the upper connecting frame (04) by bolts; the lower connecting frame (08) is symmetrically arranged with the upper connecting frame and the upper cover plate (03).

5. The floating support traction frame according to claim 4, wherein: A connecting hole for the floating support shaft (09) is arranged on the upper cover plate (03).

6. The floating support traction frame according to claim 4, characterized in that: The sleeve (02) is arranged between the upper cover plate (03) and the bottom plate of the lower connecting frame (08).

7. The floating support traction frame according to claim 1, characterized in that: The tapered roller bearing includes an upper tapered roller bearing (14) and a lower tapered roller bearing (15), the upper tapered roller bearing (14) is arranged on the upper part of the sleeve (02), and the lower tapered roller bearing (15) is arranged on the lower part of the sleeve (02).

8. The floating support traction frame according to claim 7, wherein: An upper sealing ring (13) is arranged at the upper end of the upper tapered roller bearing (14), and a lower sealing ring (16) is arranged at the lower end of the lower tapered roller bearing (15).

9. The floating support traction frame according to claim 1, characterized in that: The floating support shaft (09) is connected with the tire (10) through a support plate.

10. The floating support traction frame according to claim 9, characterized in that: The support plate includes an upper support plate (11) and a lower support plate (12), the upper support plate (11) is sleeved on the bottom end of the floating support shaft (09), and the lower support plate (12) is connected with the upper support plate (11) by bolts and a vehicle axle fixing hole is arranged in the middle.

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