twin cylinder telescopic flatbed wrecker

Abstract

The utility model discloses a kind of twin cylinder telescopic floor flatbed wrecker, hinged frame is hinged on the girder frame of this wrecker, lifting oil cylinder is hinged between girder frame and hinged frame, flatbed is installed on hinged frame and slides forwards and backwards, sliding oil cylinder that drives hinged frame to slide is installed between flatbed and hinged frame, characterized by: the sliding oil cylinder adopts twin cylinder oil cylinder, twin cylinder oil cylinder includes two groups of oil cylinder that are reversely arranged and cylinder body is fixed together, the piston rod of one oil cylinder is hinged with hinged frame, the piston rod of another oil cylinder is hinged with flatbed. Since the utility model twin cylinder telescopic floor flatbed wrecker adopts twin cylinder oil cylinder to directly drive flatbed to slide and fall, cancels the sliding frame of traditional secondary sliding, under the premise of guaranteeing that flatbed has enough sliding stroke, make the structure of wrecker more simple, reduce processing precision, provide great convenience for production and processing, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of recovery vehicle technology, specifically to a flatbed recovery vehicle that can be placed on the ground. Background Technology

[0002] Currently, the methods for driving the flatbed tow truck to the ground generally include "single cylinder + chain", "motor + rack", "three cylinder" and "hook arm tilting", etc. This drives the flatbed to fall from the subframe to the ground, so that the flatbed surface forms a small working angle with the ground, so that low-chassis disabled vehicles can be smoothly and safely towed onto the flatbed.

[0003] However, most of the aforementioned flatbed tow trucks require the installation of auxiliary sliding frames to achieve a greater sliding stroke and a smaller working angle for the flatbed. This installation method suffers from high precision requirements and high manufacturing costs. Therefore, it is necessary to develop a flatbed tow truck that is simple in structure, easy to manufacture, and low in cost. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a simple, easy-to-manufacture, and low-cost flatbed tow truck.

[0005] The technical solution adopted to solve the above-mentioned technical problems is as follows: a twin-cylinder telescopic flatbed tow truck, wherein a sub-frame is hinged to the main frame of the tow truck, a lifting cylinder is hinged between the main frame and the sub-frame, a flatbed that slides back and forth is installed on the sub-frame, and a sliding cylinder that drives the sub-frame to slide is installed between the flatbed and the sub-frame, characterized in that: the sliding cylinder is a twin-cylinder cylinder, which includes two sets of cylinders arranged in opposite directions and whose cylinder bodies are fixed together, wherein the piston rod of one cylinder is hinged to the sub-frame, and the piston rod of the other cylinder is hinged to the flatbed.

[0006] Based on the above, the flat plate is a double-section bent flat plate.

[0007] The beneficial effects of this utility model are as follows: Since the twin-cylinder telescopic flatbed wrecker of this utility model uses twin-cylinder hydraulic cylinders to directly drive the flatbed to slide to the ground, the traditional sliding frame that provides secondary sliding is eliminated. Under the premise of ensuring sufficient sliding stroke of the flatbed, the structure of the wrecker is simpler, the processing precision is reduced, the production and processing are greatly facilitated, and the production cost is reduced. Attached Figure Description

[0008] Figure 1 This is a structural schematic diagram of the twin-cylinder telescopic flatbed tow truck of this utility model (flatbed in the ground state); Figure 2 This is a schematic diagram of the twin-cylinder telescopic flatbed tow truck of this utility model without the flatbed. Figure 3 This is a schematic diagram showing the installation of the twin-cylinder hydraulic cylinders and the flatbed in the twin-cylinder telescopic flatbed tow truck of this utility model. Detailed Implementation

[0009] like Figure 1-3 As shown, a twin-cylinder telescopic flatbed tow truck is disclosed. The tow truck has a main frame 1 with a subframe 2 hinged to it. A lifting cylinder 3 is hinged between the main frame 1 and the subframe 2. A flatbed 4 that slides back and forth is mounted on the subframe 2. A sliding cylinder 5 that drives the subframe 2 to slide is installed between the flatbed 4 and the subframe 2. In this invention, the sliding cylinder 5 is a twin-cylinder cylinder, comprising two sets of cylinders arranged in opposite directions with their cylinder bodies 5.1 fixed together. The piston rod 5.2 of one cylinder is hinged to the subframe 2, and the piston rod 5.3 of the other cylinder is hinged to the flatbed 4.

[0010] Most tow truck flatbeds use two or three bendable flatbeds. In this embodiment, flatbed 4 uses two bendable flatbeds. The bottom center of the front flatbed 4.1 of flatbed 4 is fixed with a pad beam 4.3 extending to the bottom support of the rear flatbed 4.2. The subframe 2 mainly consists of two longitudinal square steel slide rails 2.1, with its rear hinged to the main frame 1 and its front hinged to a lifting cylinder 3. The lifting cylinder 3 can drive the subframe 2 to tilt backward. Two channel steel slide rails 4.4 are installed at the bottom of flatbed 4, slidingly engaging with the square steel slide rails 2.1. The end of the forward-extending piston rod 5.2 of the twin-cylinder hydraulic cylinder is hinged to the crossbeam 2.2 fixed at the front end of the subframe 2, and the end of the rearward-extending piston rod 5.3 is hinged to the pad beam 4.3.

[0011] The cylinder bodies of the twin-cylinder hydraulic cylinders can be fixed by conventional welding. Since the two sets of cylinder bodies of the twin-cylinder hydraulic cylinders are fixed together side by side, the length of the cylinder body is not increased compared to the single-cylinder hydraulic cylinder. Instead, the stroke of the rear piston rod 5.3 is increased, thus ensuring sufficient sliding stroke of the plate 4, so that the plate 4 can slide to the ground as much as possible to obtain the smallest possible working angle.

Claims

1. A telescopic flatbed tow truck with twin cylinders, wherein a subframe is hinged to the main frame of the tow truck, a lifting cylinder is hinged between the main frame and the subframe, a flatbed that slides back and forth is mounted on the subframe, and a sliding cylinder for driving the subframe to slide is installed between the flatbed and the subframe, characterized in that: The sliding cylinder is a twin-cylinder cylinder, which includes two sets of cylinders arranged in opposite directions and whose cylinder bodies are fixed together. The piston rod of one cylinder is hinged to the subframe, and the piston rod of the other cylinder is hinged to the flat plate.

2. The twin-cylinder telescopic flatbed tow truck according to claim 1, characterized in that: The flat plate is a double-section bent flat plate.

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