CN215709126U

CN215709126U - Movable free roller device

Info

Publication number: CN215709126U
Application number: CN202023277271.1U
Authority: CN
Inventors: 武文佳; 赵艳辉; 杨彩红; 吴峥; 何松柏
Original assignee: Army Military Transportation University
Current assignee: Army Military Transportation University
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-02-01
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a movable free roller device, which comprises a free roller, wherein the free roller is arranged on a frame, the bottom of the frame is provided with a moving mechanism, the frame is fixedly connected with a long rack, and the lower part of the long rack is meshed and connected with a large gear; the handle is connected with a pinion, and the pinion is meshed with the gearwheel. The design scheme adopts a mechanical scheme, main components comprise gears, guide rails, free rollers and the like, and the mechanical type roller has a simple structure and is convenient to maintain; the pneumatic or electric scheme is not used, faults such as plastic pipeline air leakage, circuit aging, poor contact and the like are avoided, the operation is convenient, and the work is reliable; low cost and is suitable for popularization.

Description

Movable free roller device

Technical Field

The utility model relates to the technical field of automobile detection, in particular to a movable free roller device.

Background

At present, the most common method for carrying out braking detection and environmental protection detection on automobiles in China is as follows: the wheel (axle) to be detected is placed on the detection roller, and the other wheels (axles) which are not detected are placed on the ground. The detection method has no problem for a common passenger car or a common truck, but has the hidden danger of causing certain damage to the car for a 4 x 4 full-time four-wheel drive car, and the general solution is to place wheels (shafts) which are not detected temporarily on a free drum. Because the wheelbases of different vehicle types are usually different, the free roller can move back and forth within a certain range to meet the requirements of different wheelbases. At present, most of the devices adopt free rollers with electric or pneumatic structures, however, the devices adopt the free rollers with the electric or pneumatic structures, so that the devices have more complex structures and high price and are not suitable for popularization.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, an object of the present application is to provide a mobile free drum device.

To achieve the object of the present invention, there is provided a mobile free-rolling drum device,

the device comprises a free roller, wherein the free roller is arranged on a frame, a moving mechanism is arranged at the bottom of the frame, a long rack is fixedly connected to the frame, and the lower part of the long rack is meshed with a large gear;

the handle is connected with a pinion, and the pinion is meshed with the gearwheel.

Wherein the content of the first and second substances,

the handle is connected with the pinion through a ratchet reversing switch capable of changing the rotation direction of the pinion.

Wherein the content of the first and second substances,

the moving mechanism comprises a supporting roller arranged at the bottom of the frame and a guide rail matched with the supporting roller for use.

Wherein the content of the first and second substances,

the guide rails are arranged side by side at intervals, the supporting rollers are matched with each other to form two rows, and each row moves on one guide rail.

Wherein the content of the first and second substances,

the small gear and the large gear are respectively arranged on the base.

Compared with the prior art, the utility model has the beneficial effects that the design scheme adopts a mechanical scheme, main components comprise gears, guide rails, free rollers and the like, and the utility model has simple structure and convenient maintenance; the pneumatic or electric scheme is not used, faults such as plastic pipeline air leakage, circuit aging, poor contact and the like are avoided, the operation is convenient, and the work is reliable; low cost and is suitable for popularization.

Drawings

FIG. 1 is a schematic structural diagram of the present application;

in the figure, 1 free roller, 2 frame, 3 guide rail, 4 support roller, 5 big gear, 6 big gear shaft, 7 base, 8 small gear, 9 ratchet reversing switch, 10 handle, 11 rack and 12 free roller shaft.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The utility model is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As shown in figure 1 of the drawings, in which,

in the application, free cylinder 1 is installed on frame 2 through the free cylinder axle 12 of both sides, and there is supporting roller 4 frame bottom, and the gyro wheel can be followed guide rail 3 back-and-forth movement, has linked firmly a microscler rack 11 on the frame, and gear wheel 5 meshes with microscler rack, and handle 10 drives pinion 8 unidirectional rotation through ratchet change-over switch 9, through adjusting ratchet change-over switch, can change the direction of rotation of gear. The small gears are arranged on the base 7 and are meshed with each other, and the large gears 5 are arranged on the base 7 through the large gear shafts 6 and are meshed with each other to realize speed reduction and torque increase.

During operation, handle 10 reciprocating swing drives pinion 8 clockwise or anticlockwise rotation, through pinion 8 and gear wheel 5 meshing, drives gear wheel 5 anticlockwise or clockwise rotation, through gear wheel 5 and rack 11 meshing, drives rack 11 and moves left or right, and the removal of rack drives and moves about rather than the frame that connects admittedly, free cylinder and gyro wheel along guide rail 3 to realize the removal of free cylinder, with the detection demand that adapts to different wheel base vehicles.

The technical means not described in detail in the present application are known techniques.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A mobile free roller device is characterized in that,

the automatic feeding device comprises a free roller (1), wherein the free roller (1) is installed on a frame (2), a moving mechanism is arranged at the bottom of the frame (2), a long rack (11) is fixedly connected to the frame (2), and the lower part of the long rack (11) is meshed with a large gear (5);

the handle (10) is connected with a pinion (8), the pinion (8) is meshed with the gearwheel (5),

the handle (10) is connected with the pinion (8) through a ratchet reversing switch (9) capable of changing the rotation direction of the pinion (8).

2. The mobile free-wheeling drum device of claim 1,

the moving mechanism comprises a supporting roller (4) arranged at the bottom of the frame (2) and a guide rail (3) matched with the supporting roller (4).

3. The mobile free-wheeling drum device of claim 2,

the two guide rails (3) are arranged side by side at intervals, the supporting rollers (4) are matched with each other to form two rows, and each row moves on one guide rail.

4. The mobile free-wheeling drum device of claim 1,

the small gear (8) and the large gear (5) are respectively arranged on the base (7).