CN102363516A - Rocker arm type vehicle detection table lifting device - Google Patents

Abstract

The invention discloses a lifting device for a rocker-arm type vehicle detection platform. It includes a bearing platform and a supporting device arranged under the bearing platform; in the supporting device, a horizontally arranged cylinder is included, and the cylinder body and the piston of the cylinder are respectively fixedly connected with one end of a connecting shaft, and each connecting shaft The two sides of the other end are respectively provided with a horizontally arranged cylinder push rod, one end of each cylinder push rod is connected with the corresponding connecting shaft and the other end of each cylinder push rod is respectively connected with one end of an upper rocker arm and a One end of the lower rocker arm is hinged; the other end of each upper rocker is hinged with the bottom surface of the bearing platform, and the other end of each lower rocker is hinged with the ground; limit device. The invention can improve the working life and reliability of the air cylinder or the oil cylinder, and has the advantages of small overall height, simple structure and convenient installation.

Description

Lifting device for a rocker-type vehicle inspection platform

technical field

The invention relates to a lifting device for ensuring the convenience of vehicles entering and exiting a testing platform, in particular to a vehicle lifting device used between rollers in a roller-type motor vehicle testing system.

Background technique

At present, the vehicle lifting device between the rollers in the roller-type motor vehicle inspection system generally uses a cylinder or an oil cylinder to directly lift up and down. When the vehicle enters between the rollers, the system controls the cylinder or oil cylinder to move up and down directly, so as to realize the lifting of the vehicle. The cylinder or oil cylinder of this device is generally installed vertically, which requires an increase in the overall height of the equipment. Generally, the lifting device The upper surface is on the same level as the ground. Since the cylinder (oil cylinder) is generally installed vertically, the distance that the lifting device penetrates into the ground is relatively large. Due to the bending moment caused by the deviation of the parking position of the vehicle from the center of the cylinder or oil cylinder, the cylinder or oil cylinder is more likely to fail. At the same time, the lifting device is relatively heavy, and it penetrates into the ground greatly, and maintenance is also troublesome.

Contents of the invention

The object of the present invention is to provide a rocker type vehicle inspection platform lifting device which can improve the working life and reliability of the cylinder or oil cylinder.

In order to achieve the above object, the technical solution adopted by the present invention is: the rocker-arm type vehicle inspection platform lifting device includes a bearing platform and a supporting device arranged below the bearing platform; in the supporting device, a horizontal Arranged cylinders, the cylinder body and the piston of the cylinder are fixedly connected to one end of a connecting shaft, each of the two sides of the other end of the connecting shaft is provided with a horizontally arranged cylinder push rod, each of the One end of the cylinder push rod is connected with the corresponding connecting shaft and the other end of each cylinder push rod is respectively hinged with one end of an upper rocker arm and one end of a lower rocker arm; the other end of each upper rocker arm is connected with the The bottom surface of the bearing platform is hinged, and the other end of each lower rocker arm is hinged to the ground; both sides of the bearing platform are installed with limiting devices for limiting the deviation of the bearing platform to both sides.

Further, the air cylinder in the present invention can be replaced by an oil cylinder.

Compared with prior art, the advantage of the present invention is:

1) In the existing technology, the service life and measurement accuracy of the cylinder or oil cylinder are easily affected by the torque, but the horizontally arranged cylinder or oil cylinder in the present invention is driven by the rocker mechanism without directly bearing the gravity from the bearing platform and the vehicle under inspection, so It can improve the stress of cylinders and oil cylinders, so that the cylinders and oil cylinders are only subjected to tension pressure, improving their working life and reliability;

2) The air cylinder or oil cylinder in the prior art is installed vertically, so that the height of the whole device is higher, while the air cylinder or oil cylinder in the present invention can be placed horizontally, the overall height is small, the structure is simple, and the installation is convenient;

3) Large load, moderate moving speed and stable lifting;

4) It is cheap, easy to manufacture, and conducive to popularization and use.

Description of drawings

Fig. 1 is a structural schematic diagram when the lifting device of the rocker-arm type vehicle inspection platform of the present invention is raised (the frame part is not drawn);

Fig. 2 is a schematic diagram of the structure when the lifting device of the rocker-arm type vehicle inspection platform of the present invention is lowered (the frame part is not drawn);

Fig. 3 is the A-A view of Fig. 1;

In the figure: 1. Bearing platform, 2. Suspension column, 3. Guide wheel, 4. Guide block, 5. Second cylinder push rod, 6. Fixed frame, 7. Hanger, 8. Bolt, 9. Upper rocker arm , 10, the first cylinder push rod, 11, the lower rocker arm, 12, the connecting shaft, 13, the cylinder.

Detailed ways

As shown in FIG. 1 to FIG. 3 , the rocker-arm type vehicle inspection platform lifting device of the present invention includes a platform 1 for carrying a vehicle to be inspected and a support device located below the platform 1 . The number of supporting devices can be determined according to the size of the platform area of the carrying platform 1 and the arrangement position of the supporting devices below the carrying platform 1 should ensure that the support to the carrying platform 1 is stable and reliable. The embodiment shown in Figure 1 shows only one support means.

In the embodiment shown in Fig. 1 to Fig. 3, the supporting device of the present invention mainly consists of a cylinder 13, a connecting shaft 12, a first cylinder push rod 10, a second cylinder push rod 5, an upper rocker arm 9 and a lower rocker arm 11. constitute. Specifically, in each supporting device, the cylinder 13 is arranged horizontally (that is, the cylinder body and the piston of the cylinder 13 perform telescopic movement in the horizontal direction), and the cylinder body of the cylinder 13 is fixedly connected with the first end of a connecting shaft 12, The piston of the cylinder 13 is fixedly connected with the first end of the other connecting shaft 12 . As shown in Figure 3, the second end of each connecting shaft 12 (that is, the other end opposite to the first end of the connecting shaft) is equipped with two horizontally arranged cylinder push rods (that is, the first cylinder push rod 10 and the second cylinder push rod cylinder push rod 5), the first cylinder push rod 10 and the second cylinder push rod 5 are located on the left and right sides of the second end of the connecting shaft 12, wherein one end of the first cylinder push rod 10 and the second cylinder push rod One end of 5 is installed together with the second end of connecting shaft 12, and the other end of each first cylinder push rod 10 is hinged together with a group of rocker arms, and the other end of each second cylinder push rod 5 is connected with Another set of rocker arms is hinged together. Each group of rocking arms consists of an upper rocking arm 9 and a lower rocking arm 11. Wherein, in a group of rocker arms hinged with the other end of the first cylinder push rod 10, one end of the upper rocker arm 9 and one end of the lower rocker arm 11 are hinged with the other end of the first cylinder push rod 10 Together, the other end of the upper rocker arm 9 is hinged to the bottom surface of the bearing platform 1 through the hanger 7 (or other common hinged connectors), and the other end of the lower rocker arm 11 is hinged to the ground through the fixing frame 6 . In the same way, in another group of rocking arms hinged with the other end of the second cylinder push rod 5, one end of the upper rocker arm 9 and one end of the lower rocker arm 11 are connected to the other end of the second cylinder push rod 5 Hinged together, while the other end of the upper rocker arm 9 is hinged with the bottom surface of the bearing platform 1 through the hanger 7, and the other end of the lower rocker arm 11 is hinged with the ground through the fixing frame 6.

Since the cylinder 13 in the supporting device is arranged horizontally, it only needs to stretch its piston in the horizontal direction to control the lifting of the carrying platform 1 . Compared with the previous working method, the cylinder 13 is only subjected to tension pressure, and no longer bears the gravity from the vehicle and the bending moment caused by the vehicle's parking position deviating from the center of the cylinder, so that the working life and reliability of the cylinder 13 are improved. At the same time, the height of the entire lifting device is reduced.

In addition, the two sides of the carrying platform 1 in the present invention are equipped with limiting devices for preventing the carrying platform 1 from shifting to its two sides. In the present invention, the two sides of the vehicle to be inspected on the carrying platform 1 are taken as the two sides of the carrying platform 1 . Under the action of the limiting device of the present invention, the carrying platform 1 can only move up and down, but cannot shift to its two sides. All the limiting devices that can play such a limiting role in the prior art can be used in the present invention, and the skilled person can choose freely.

In order to better illustrate the working principle of the lifting device of the present invention, further description will be given below in conjunction with a specific structure of the limiting device as shown in FIG. 1 and FIG. 2 . The structure of the limit device shown in Figure 1 and Figure 2 and its installation method are as follows: each of the four corners of the bottom surface of the bearing platform 1 is fixed with a suspender 2, and the lower end of each suspender 2 is respectively hinged with a guide Wheel 3, the four guide wheels 3 are respectively in contact with four or two guide blocks 4 matched with the corresponding guide wheels 3 on both sides of the carrying platform 1. When using the lifting device of the present invention, the four guide blocks 4 of each guide block 4 are fixedly installed on the frame (not shown in the figure), so that the guide block 4 is fixed; in addition, each guide block 4 is connected with the same The matching guide wheels 3 contact so that the guide wheels 3 only move up and down along the guide blocks 4 . Since the guide wheels 3 can only roll along the vertical direction, the carrying platform 1 can only move vertically, thereby ensuring the accuracy of vehicle detection.

The purpose of the vehicle detection system rack and pinion lifting device of the present invention is achieved in this way:

As shown in Figure 1, when the carrying platform 1 is about to rise, the cylinder 13 starts, and the piston of the cylinder 13 extends out of the cylinder body, so that the two connecting shafts 12 installed with the cylinder 13 move away from the cylinder 13 along its own axial direction. direction movement, and then drive the corresponding upper rocker arm 9 and lower rocker arm 11 to swing around the hanger 7 and the fixed frame 6 respectively. Due to the limiting effect of the limiting device, the bearing platform 1 can only move vertically, so that the vertical distance between the upper and lower corresponding hangers 7 and the fixed frame 6 increases, and the bearing platform 1 gradually rises. When the piston extension length of cylinder 13 reached the maximum, the piston of cylinder 13 stopped moving, and now upper rocker arm 9 and lower rocker arm 11 were in a vertical state, and the height of bearing platform 1 reached the highest, and cylinder 13 kept this state. Moving, the carrying platform 1 keeps the highest height constant.

As shown in Figure 2, when the bearing platform 1 is about to descend, the cylinder 13 starts, and the piston of the cylinder 13 retracts into the cylinder body, so that the two connecting shafts 12 installed together with the cylinder 13 move closer to the cylinder 13 along their own axial direction. direction movement, and then drive the upper rocker arm 9 and the lower rocker arm 11 to swing around the hanger 7 and the fixed frame 6 respectively. Due to the position-limiting effect of the limiter, the carrying platform 1 can only move vertically, so that the vertical distance between the upper and lower corresponding hangers 7 and the fixed frame 6 decreases, and the carrying platform 1 gradually descends. When the piston of the cylinder 13 is completely retracted into the cylinder body, the upper rocker arm 9 and the lower rocker arm 11 are in a tilted state, and the height of the loading platform 1 reaches the minimum, and the cylinder 13 keeps this state, and the loading platform 1 remains at the lowest Height does not change.

Claims (2)

1. A rocker arm type vehicle inspection platform lifting device is characterized in that: it includes a bearing platform and a support device located below the bearing platform; in the support device, a horizontally arranged cylinder is included , the cylinder body and the piston of the cylinder are fixedly connected to one end of a connecting shaft, each side of the other end of the connecting shaft is respectively provided with a horizontally arranged cylinder push rod, and each of the cylinder push rods One end of each cylinder is connected to the corresponding connecting shaft and the other end of each cylinder push rod is respectively hinged with one end of an upper rocker arm and one end of a lower rocker arm; the other end of each upper rocker arm is connected with the bearing platform The bottom surface of each lower rocker arm is hinged, and the other end of each lower rocker arm is hinged to the ground; both sides of the bearing platform are installed with limiting devices for limiting the deviation of the bearing platform to both sides. 2. The lifting device of the rocker-arm type vehicle testing platform according to claim 1, wherein the cylinder is replaced by an oil cylinder.

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