CN1282596C - Lifting device for vehicle detection system - Google Patents

Abstract

The invention discloses a lifting device of a vehicle detection system. It has a bearing platform, on which there are active push-pull frame, fluid pressure push-pull device, thrust rotation support, rollers are arranged under the active push-pull frame, and rotation support is arranged above, between the rotation support and thrust rotation support There is a driven lifting frame on the top, and a load cell is installed under the load-bearing platform. The load cell is fixed on the frame. The driven lift frame has a load-bearing table, an inclined plane, and an up-and-down motion guide. The up-and-down motion guide includes a guide surface and guide rollers. And the guide groove, the guide groove is fixed on the frame, and the bearing platform itself is composed of the bearing platform bottom plate and the horizontal guide device of the active thrust frame. The present invention has the advantages of: 1) improving the stress on the air cylinder or oil cylinder, the air cylinder or oil cylinder only has pulling pressure, and no lateral bending force is required, which improves the working life and reliability of the air cylinder or oil cylinder; 2) the overall height is small, the structure is compact, It is convenient for the overall layout of the system; 3) Uniform force and stable lifting; 4) Easy maintenance.

Description

Lifting device for vehicle detection system

technical field

The invention relates to a lifting device of a vehicle inspection system, which is mainly used for lifting vehicles between rollers in a roller-type motor vehicle inspection system, and aims to ensure that the vehicle can enter and exit the inspection platform conveniently.

Background technique

At present, the vehicle lifting device between the rollers in the roller-type motor vehicle detection system generally adopts air cylinders (airbags) or oil cylinders to directly lift up and down. When the vehicle enters between the rollers, the system controls the air cylinder (airbag) or oil cylinder to move up and down directly, so as to realize the lifting of the vehicle. The air cylinder (airbag) or oil cylinder of this device is generally installed vertically, which requires an increase in the overall height of the equipment. Generally, the upper surface of the equipment is on the same level as the ground. Since the cylinder (oil cylinder) is generally installed vertically, the distance between the equipment and the ground is relatively large. In addition, due to the bending moment caused by the deviation of the parking position of the vehicle from the center of the cylinder (airbag) or oil cylinder, the cylinder (airbag) or oil cylinder is more prone to failure. .

Contents of the invention

The object of the present invention is to provide a lifting device for a vehicle detection system.

It has a bearing platform on which an active push-pull frame, a fluid pressure push-pull device, and a thrust rotation support are arranged, rollers are arranged below the active push-pull frame, and a The rotating support is provided with a driven lifting frame on the rotating support and the thrust rotating support. A load cell is arranged under the bearing platform, and the load cell is fixed on the frame with bolts. The driven lifting frame has The bearing platform, inclined plane, guide surface for up and down movement, and guide rollers are equipped with guide grooves matched with the guide rollers, and the guide grooves are fixed on the frame; the bearing platform is perpendicular to the guide surface for moving up and down; the bearing platform has a bearing platform The bottom plate and the horizontal guiding device of the active thrust frame, the bottom plate of the carrying platform is provided with through holes for fixing.

The advantages of the present invention are:

1) Improve the stress of the cylinder type oil cylinder, only pull pressure, improve the working life and reliability of the air or oil cylinder;

2) The overall height is small, the structure is compact, and it is convenient for the overall layout of the system;

3) Uniform force and stable lifting;

4) Easy maintenance.

Description of drawings

Fig. 1 is a structural schematic diagram of a lifting device of a vehicle detection system;

Fig. 2 is a schematic structural view of the active push (pull) force frame of the present invention;

Fig. 3 is a structural schematic diagram of the driven lifting frame of the present invention.

Fig. 4 is a structural schematic diagram of the carrying platform of the present invention.

Detailed ways

The lifting device of the vehicle detection system has a bearing platform 3, on which an active push-pull frame 1, a fluid pressure push-pull device 6, and a thrust rotation support 7 are arranged, and rollers are arranged under the active push-pull frame 1 1-3. A rotating support 1-2 is provided above the active push-pull frame 1, a driven lifting frame 2 is provided on the rotating support 1-2 and the thrust rotating support 7, and the carrying platform 3 There is a load cell 4 below, and the load cell 4 is fixed on the frame 8 with bolts. The driven lifting frame 2 has a bearing table 2-1, an inclined plane 2-2, a vertical movement guide surface 2-3, and a guide roller 2. -4, guide groove 5 is provided with guide roller 2-4, and guide groove 5 is fixed on the frame 8; Bearing platform 2-1 is perpendicular to described up and down motion guide surface 2-3; Described bearing platform 3 It has a bearing platform bottom plate 3-1 and an active thrust frame horizontal guide device 3-2, and the bearing platform bottom plate 3-1 is provided with a through hole 3-3 for fixing.

Active push-pull frame 1 is made up of shelf 1-1, rotating support 1-2 and roller 1-3, push-pull cylinder (oil cylinder) piston rod and connects fixed push-pull plate 1-4. Figure 2 shows. The shelf 1-1 is a whole connected by welding, riveting or bolting; the rotating support 1-2 is composed of pins and bearings (or bearings and their jackets, or bearings and rollers) and is fixed on the shelf 1-1 ;The roller 1-3 is made up of pins and bearings (or bearings and their jackets, or made up of bearings and rollers), and is fixed on the frame 1-1 by pins at the same time, and the bearing platform 3 itself is composed of the bearing platform bottom plate 3-1 , The active thrust frame horizontal guide device 3-2 is composed of a fixed hole 3-3 on the bottom plate of the loading platform 3-1 for easy connection. The active pushing and pulling frame 1 is placed on the loading platform 3, and the four rollers 1-3 are just right Confined in the middle of the active push-pull frame horizontal guide device 3-2, so that the active push-pull frame 1 moves left and right along the active push-pull frame horizontal guide device 3-2 on the bearing platform 3; the push-pull cylinder (oil cylinder) piston rod is connected to the fixed push-pull Plate 1-4 is connected with the piston rod of push-pull cylinder (oil cylinder) 6 with screws.

The driven lifting frame 2 is composed of a bearing table 2-1, an inclined plane 2-2, an up-and-down motion guide 2-3, a guide roller (which can be a bearing, or a combination of a bearing and an outer ring) 2-4 and a guide roller shaft 2-5, the guide roller shaft is fixed on the bearing table 2-1 by welding or bolts. As shown in Figure 3.

Push-pull cylinder (oil cylinder) 6 is fixed on the bottom plate 3-1 of bearing platform 3, and its piston rod is connected with push-pull cylinder (oil cylinder) piston rod on the active push-pull frame 1 and is connected with fixed push-pull plate 1-4.

The base of the thrust rotation support 7 is fixed on the bottom plate 3-1 of the bearing platform 3, and its rollers can roll on the up-and-down movement guide 2-3 of the driven lifting frame 2.

The purpose of the lifting device of this vehicle detection system is achieved in this way: when the push-pull cylinder (oil cylinder) 6 is under the control of the reversing control valve, its piston rod can be pushed out and pulled in, and when the piston rod is pushed out, it will drive the active push-pull force The frame 1 moves to the left, and the rotating support 1-2 of the active push-pull frame 1 acts on the inclined plane 2-2 of the driven lifting frame 2. At the same time, due to the joint action of the thrust rotating support 7, the movement of the driven lifting frame is limited. At the same time, the slope 2-2 and the guide surface 2-3 of the driven lifting frame are always located in the middle of the active thrust frame, and the driven lift is limited by the sides of the slope 2-2 and the guide surface 2-3. The frame is perpendicular to the movement of another degree of freedom in the left and right direction. In order to ensure the force situation when the vehicle enters and exits, a guide roller 2-4 fixed on the bearing table 2-1 is added. When the driven lifting frame moves up and down , the guide roller 2-4 rolls up and down in the guide groove 5 all the time, the side composed of the inclined surface 2-2, the guide surface 2-3, the inclined surface 2-2 and the guide surface, the guide roller 2-4, the guide groove, the thrust The rotation support 7 is jointly limited so that the driven lifting frame 2 can only move vertically upwards, thereby lifting the wheel, so that the axle load of the vehicle can be measured by the load cell 4; on the contrary, when the piston rod is pulled in, it drives The active push (pull) power frame 1 moves to the right, the driven lifting frame 2 moves downward under the action of gravity, leaves the wheel, and the axle load measurement ends.

The fluid pressure push-pull device (air cylinder or oil cylinder) pushes and pulls the active push-pull frame. On the one hand, the active push-pull frame relies on the rollers below it, and is constrained by the horizontal guide device of the active push-pull frame. The rotating support above the frame pushes the driven lifting frame, and the driven lifting frame moves up and down under the constraint of the thrust rotating support, thereby lifting the vehicle up and down.

Claims (1)

1. A vehicle detection system lifting device is characterized in that it has a bearing platform (3), on which an active push-pull frame (1), a fluid pressure push-pull device (6), a stop Push and rotate the support (7), a roller (1-3) is provided below the active push-pull frame (1), a rotary support (1-2) is provided above the active push-pull frame (1), and A driven lifting frame (2) is provided on the rotating support (1-2) and the thrust rotating support (7), and a load cell (4) is provided under the carrying platform (3), and the load cell (4) Be fixed on the frame (8) with bolts, and the driven lifting frame (2) has a load-bearing table (2-1), an inclined plane (2-2), an up and down movement guide surface (2-3), and guide rollers (2 -4), and the guide roller (2-4) is equipped with a guide groove (5), and the guide groove (5) is fixed on the frame (8); 2-3) is vertical; the bearing platform (3) has a bearing platform bottom plate (3-1), an active thrust frame horizontal guide device (3-2), and the bearing platform bottom plate (3-1) is provided with a in the fixed through hole (3-3).

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