Walking wheel mechanism and bridge inspection vehicle

Abstract

The utility model discloses a walking wheel mechanism and bridge inspection car, the walking wheel mechanism comprises a wheel seat, a driving wheel and a waist clamping wheel assembly, the wheel seat is n-shaped, the driving wheel is provided with power, the driving wheel is arranged in the wheel seat, the two ends of a wheel axle of the driving wheel are connected with the wheel seat, and the waist clamping wheel assembly is arranged on the driving wheel. The driving wheel is used for being supported at the rail top of a steel rail and providing walking power, the waist clamping wheel assembly is arranged on the wheel seat, the waist clamping wheel assembly is provided with two waist clamping wheels which are distributed in the left-right direction at intervals and oppositely arranged, and the two waist clamping wheels are located on the two sides of the steel rail and extend into grooves in the two sides of the steel rail to be limited. Due to the fact that the driving wheel is supported at the rail top of the steel rail and is provided with power, the driving wheel can automatically move along the rail top of the steel rail, the two waist clamping wheels of the waist clamping wheel assembly are located on the two sides of the steel rail to achieve butt clamping of the steel rail, clamping of the steel rail can be achieved, and the walking wheel mechanism is limited on the steel rail.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge inspection vehicles, and in particular relates to a wheel mechanism and a bridge inspection vehicle. Background Art

[0002] Since a bridge may have mechanical damage after running for a period of time, it is necessary to inspect the bridge regularly for safe operation so as to promptly discover the damage on the bridge and repair it in time. There are many types of bridge inspection vehicles at present, but they all run on the tracks on both sides under the bridge deck. The structures of the running wheel mechanisms used in bridge inspection vehicles are also diverse, such as the running wheel mechanism disclosed in document number CN204940116U "A running wheel mechanism for a bridge inspection vehicle", but its driving motor is externally placed, resulting in a large space occupied by its running wheel mechanism, and its running wheel mechanism has an effective limiting effect on the rails. Utility Model Content

[0003] In order to solve the above technical problems, one of the purposes of the utility model is to provide a wheel mechanism with a simple structure and good upper limit effect on the rail.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a walking wheel mechanism, including a wheel seat, a driving wheel and a clamping wheel assembly, the wheel seat is N-shaped, the driving wheel is self-powered, and the driving wheel is placed in the wheel seat, and the two ends of its wheel axle are connected to the wheel seat, the driving wheel is used to support the top of the rail and provide walking power, the clamping wheel assembly is arranged on the wheel seat, and the clamping wheel assembly has two clamping wheels that are spaced apart and arranged oppositely in the left and right directions, and the two clamping wheels are located on both sides of the rail and extend into the grooves on both sides of the rail to limit the position.

[0005] The beneficial effect of the above technical solution is that: since the driving wheel is supported at the top of the rail and has its own power, it can move along the top of the rail by itself, and the two clamping wheels of the clamping wheel assembly are located on both sides of the rail to clamp the rail, so that the rail can be clamped, thereby limiting the wheel mechanism on the rail.

[0006] The driving wheel in the above technical solution comprises a hub motor and a rubber wheel sleeved on the hub motor, and the wheel axle of the driving wheel is fixedly connected to the wheel seat.

[0007] The beneficial effects of the above technical solution are: it has a simple structure and occupies little space.

[0008] The rubber wheel in the above technical solution is in the shape of a groove wheel and matches with the rail top of the steel rail.

[0009] The beneficial effect of the above technical solution is that: in this way, the rubber wheel and the rail have a good matching degree, the contact surface between the two is large, and the driving wheel can be prevented from slipping on the upper end of the rail.

[0010] The waist-clamping wheel assembly in the above technical solution also includes two wheel arms, and the two wheel arms correspond to the two waist-clamping wheels one by one. The two wheel arms are vertically arranged on both sides of the wheel seat, and the upper ends of the wheel arms are connected to the wheel seat, and the waist-clamping wheels are installed at the lower ends of the corresponding wheel arms.

[0011] The beneficial effects of the above technical solution are: its structure is simple and it makes it more convenient to install the waist-clamping wheel on the wheel seat.

[0012] The waist-clamping wheel assembly in the above technical solution also includes a driving member and two guide rods, the two guide rods are horizontally installed on both sides of the wheel seat along the left and right directions respectively, the two guide rods correspond to the two wheel arms one by one respectively, and each wheel arm has a sliding hole for the corresponding guide rod to pass through, the driving member is installed at the upper end of the wheel seat, and the driving end of the driving member is connected to the upper ends of the two wheel arms, and the driving member is used to drive the two wheel arms to drive the two waist-clamping wheels to move closer to or away from each other.

[0013] The beneficial effect of the above technical solution is that its structure is simple, and the wheel arms are movably mounted on the wheel seat through the driving member and the guide rod, and the wheel arms can slide closer to each other under the action of the driving member to clamp the rails or slide away from each other to release the rails.

[0014] The driving member in the above technical solution is a double-stroke telescopic cylinder, which has two telescopic ends, and the two telescopic ends are separated from each other in the left and right directions.

[0015] The beneficial effects of the above technical solution are: its structure is simple, and it is easy to install, and the structure is compact after installation.

[0016] In the above technical solution, the upper ends of both sides of the wheel seat are provided with openings, the driving member is installed on the bottom wall of the groove of the wheel seat, and its two telescopic ends extend out through the two openings respectively and are connected to the corresponding wheel arms.

[0017] The beneficial effect of the above technical solution is that: its structure is simple, so that the upper end of the wheel seat can be vacated for connection with the vehicle body.

[0018] In the above technical solution, the ends of the two guide rods that are away from each other are both provided with an enlarged portion for limiting.

[0019] The beneficial effect of the above technical solution is that the sliding stroke of the wheel arm can be limited by the enlarged portion and the wheel seat together.

[0020] The waist-clamping wheel in the above technical solution is in the shape of a cone, and its wheel surface matches with the groove top wall on the corresponding side of the rail.

[0021] The beneficial effect of the above technical solution is that the two clamping wheels and the rails can be well fitted.

[0022] A second object of the present invention is to provide a bridge inspection vehicle with a simple structure and good adhesion with rails.

[0023] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a bridge inspection vehicle comprises the wheel mechanism as described above.

[0024] The beneficial effects of the above technical solution are: its structure is simple and its operation is safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a front view of the assembly of the wheel mechanism and the rail described in Example 1 of the utility model;

[0026] Figure 2 This is a side view of the driving wheel described in Example 1 of the utility model;

[0027] Figure 3 It is a side view of the wheel seat described in Example 1 of the utility model;

[0028] Figure 4 It is a side view of the wheel arm described in Example 1 of the utility model.

[0029] In the figure: 1 wheel seat; 11 opening; 2 driving wheel; 21 hub motor; 22 rubber wheel; 3 waist wheel assembly; 31 waist wheel; 32 wheel arm; 321 sliding hole; 33 driving member; 34 guide rod; 341 expansion part; 4 rail. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. According to the following description and claims, the advantages and features of the present invention will be more clearly described. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0031] Example 1

[0032] like Figure 1As shown, the present embodiment provides a walking wheel mechanism, including a wheel seat 1, a driving wheel 2 and a clamping wheel assembly 3, the wheel seat 1 is N-shaped, the driving wheel 2 is self-powered, and the driving wheel 2 is placed in the wheel seat 1, and the two ends of its wheel axle are connected to the wheel seat 1, the driving wheel 2 is used to support the top of the rail 4 and provide walking power, the clamping wheel assembly 3 is arranged on the wheel seat 1, and the clamping wheel assembly 3 has two clamping wheels 31 that are spaced and arranged oppositely along the left and right directions, the two clamping wheels 31 are located on both sides of the rail 4, and extend into the grooves on both sides of the rail 4 to limit the position, because the driving wheel is supported at the top of the rail and has its own power, it can move along the top of the rail by itself, and the two clamping wheels of the clamping wheel assembly are located on both sides of the rail to clamp the rail, so that the rail can be clamped, thereby limiting the walking wheel mechanism on the rail.

[0033] like Figure 2 As shown, the driving wheel 2 in the above technical solution includes a hub motor 21 and a rubber wheel 22 mounted on the hub motor 21, and the wheel axle of the driving wheel 2 is fixedly connected to the wheel seat 1. It has a simple structure and occupies a small space. In this embodiment, the wheel axle of the driving wheel is the motor shaft of the hub motor, and the wheel axle of the driving wheel is fixedly connected to the wheel seat.

[0034] The rubber wheel 22 in the above technical solution is in the shape of a groove wheel and cooperates with the rail top of the rail 4, so that the rubber wheel and the rail have a good degree of fit, and the contact surface between the two is large, which can prevent the driving wheel from slipping on the upper end of the rail (the material of the rubber wheel can be rubber material, similar to the material of vehicle tires, which has good wear resistance).

[0035] In this embodiment, the clamping wheel can be a steel wheel. In this embodiment, the driving wheel and the two steel wheels clamp the rail top from three directions.

[0036] See Figure 1 In the above technical solution, the waist-clamping wheel assembly 3 also includes two wheel arms 32, and the two wheel arms 32 correspond to the two waist-clamping wheels 31 one by one. The two wheel arms 32 are vertically arranged on both sides of the wheel seat 1, and the upper ends of the wheel arms 32 are connected to the wheel seat 1, and the waist-clamping wheels 31 are installed at the lower ends of the corresponding wheel arms 32. Its structure is simple and makes it more convenient to install the waist-clamping wheels on the wheel seat.

[0037] See Figure 1 and Figure 4As shown, the waist-clamping wheel assembly 3 in the above technical scheme also includes a driving member 33 and two guide rods 34. The two guide rods 34 are horizontally installed on both sides of the wheel seat 1 along the left and right directions respectively. The two guide rods 34 correspond to the two wheel arms 32 one by one respectively. Each wheel arm 32 has a sliding hole 321 for the corresponding guide rod 34 to pass through. The driving member 33 is installed at the upper end of the wheel seat 1, and the driving end of the driving member 33 is connected to the upper ends of the two wheel arms 32. The driving member 33 is used to drive the two wheel arms 32 to drive the two waist-clamping wheels 31 to move closer to each other or away from each other. Its structure is simple, and the wheel arms are movably installed on the wheel seat through the driving member and the guide rods, and the wheel arms can slide closer to each other to clamp the rails or slide away from each other to loosen the rails under the action of the driving member.

[0038] The driving member 33 in the above technical solution is a double-stroke telescopic cylinder, which has two telescopic ends, and the two telescopic ends are separated from each other in the left and right directions. It has a simple structure and is easy to install, and the structure is compact after installation.

[0039] like Figure 3 As shown, in the above technical solution, openings 11 are provided at the upper ends of both sides of the wheel seat 1, the driving member 33 is installed on the bottom wall of the groove of the wheel seat 1, and its two telescopic ends extend out through the two openings 11 respectively and are connected to the corresponding wheel arms 32. The structure is simple, so that the upper end of the wheel seat can be freed for connection with the vehicle body.

[0040] In the above technical solution, the ends of the two guide rods 34 that are away from each other are both provided with an enlarged portion 341 for limiting, so that the sliding stroke of the wheel arm can be limited by the enlarged portion and the wheel seat together.

[0041] In the above technical solution, the waist-clamping wheel 31 is in a frustum shape, and its wheel surface matches with the groove top wall on the corresponding side of the rail 4, so that the two waist-clamping wheels have a good fit with the rail.

[0042] In this embodiment, the driving member can release the rail when driving the two clamping wheels to move away from each other, so that the entire wheel mechanism can withdraw upward from the rail.

[0043] Example 2

[0044] The present embodiment provides a bridge inspection vehicle, including a running wheel mechanism as described in Example 1, which has a simple structure and good operating safety (the bridge inspection vehicle also includes a vehicle body, and four running wheel mechanisms are provided, and the four running wheel mechanisms are arranged in a rectangular distribution on both sides of the vehicle body, that is, two running wheel mechanisms are arranged on both sides of the vehicle body at intervals along the front-to-back direction).

[0045] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A wheel mechanism, characterized in that: The invention comprises a wheel seat (1), a driving wheel (2) and a clamping wheel assembly (3); the wheel seat (1) is N-shaped; the driving wheel (2) is self-powered and is placed in the wheel seat (1); the two ends of the driving wheel axle are connected to the wheel seat (1); the driving wheel (2) is used to be supported on the top of a rail (4) and provide walking power; the clamping wheel assembly (3) is arranged on the wheel seat (1); and the clamping wheel assembly (3) has two clamping wheels (31) which are spaced apart and arranged opposite to each other in the left-right direction; the two clamping wheels (31) are located on both sides of the rail (4) and extend into grooves on both sides of the rail (4) to limit the position.

2. The wheel mechanism according to claim 1, characterized in that: The driving wheel (2) comprises a hub motor (21) and a rubber wheel (22) sleeved on the hub motor (21), and the wheel axle of the driving wheel (2) is fixedly connected to the wheel seat (1).

3. The wheel mechanism according to claim 2, characterized in that: The rubber wheel (22) is in the shape of a groove wheel and matches with the rail top of the steel rail (4).

4. The wheel mechanism according to claim 1, characterized in that: The waist-clamping wheel assembly (3) further comprises two wheel arms (32), the two wheel arms (32) and the two waist-clamping wheels (31) corresponding to each other one by one, the two wheel arms (32) are vertically arranged on both sides of the wheel seat (1), and the upper ends of the wheel arms (32) are connected to the wheel seat (1), and the waist-clamping wheels (31) are installed at the lower ends of the corresponding wheel arms (32).

5. The wheel mechanism according to claim 4, characterized in that: The waist-clamping wheel assembly (3) further comprises a driving member (33) and two guide rods (34). The two guide rods (34) are respectively mounted horizontally on both sides of the wheel seat (1) along the left-right direction. The two guide rods (34) correspond to the two wheel arms (32) one by one. Each wheel arm (32) has a sliding hole (321) for the corresponding guide rod (34) to pass through. The driving member (33) is mounted on the upper end of the wheel seat (1), and the driving end of the driving member (33) is connected to the upper ends of the two wheel arms (32). The driving member (33) is used to drive the two wheel arms (32) to drive the two waist-clamping wheels (31) to move closer to each other or farther away from each other.

6. The wheel mechanism according to claim 5, characterized in that: The driving member (33) is a double-stroke telescopic cylinder having two telescopic ends, and the two telescopic ends are separated from each other in the left-right direction.

7. The wheel mechanism according to claim 6, characterized in that: The upper ends of both sides of the wheel seat (1) are provided with openings (11), the driving member (33) is installed on the bottom wall of the groove of the wheel seat (1), and its two telescopic ends extend out through the two openings (11) and are connected to the corresponding wheel arms (32).

8. The wheel mechanism according to claim 5, characterized in that: The ends of the two guide rods (34) that are away from each other are both provided with an enlarged portion (341) for limiting position.

9. The wheel mechanism according to claim 1, characterized in that: The waist-clamping wheel (31) is in the shape of a cone, and its wheel surface matches the groove top wall on the corresponding side of the steel rail (4).

10. A bridge inspection vehicle, characterized in that: It comprises a running wheel mechanism as described in any one of claims 1 to 9.

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