A rail transit vehicle bogie moving device

Abstract

The present invention discloses a rail transit vehicle bogie moving device, which comprises two left and right rack guides, a moving frame is installed between the two left and right rack guides, the moving frame is composed of a platform and left and right side plates, a power transmission mechanism is arranged in the moving frame and meshes with the rack guides, linear guides are arranged on the left and right sides of the platform, a moving base plate is installed on the linear guides, the moving base plate is driven to move on the linear guides by a power mechanism, and a friction wheel driven by a motor for driving the bogie to move is installed on the moving base plate; the present invention realizes the automation of the on-rail movement of the bogie, especially the movement of the bogie in the pit, which not only saves manpower and reduces labor intensity, but also has no influence on the subsequent movement of the bogie due to the adoption of an avoidance structure.

Description

Technical Field

[0001] The invention belongs to the technical field of rail transit vehicles, and in particular relates to a rail transit vehicle bogie moving device. Background Art

[0002] With economic development and technological progress, the rail transit industry has also ushered in a prosperous development. The bogies of rail transit vehicles play the roles of load-bearing, guiding, traction, braking, and vibration reduction, which directly determine the stability and ride comfort of the vehicle. They are key components of EMUs, urban subways and other vehicles. For this reason, the quality inspection of the bogie after it is newly built or overhauled is particularly important. The bogie is an independent part that cannot be powered and moved autonomously, and is manually pushed on the track. The common practice is to first check the upper part of the bogie, and then manually push the bogie to the pit to check the bottom and both sides of the bogie. After the inspection is completed, the bogie is manually pushed out for the next process. However, the bogie weighs several tons, and pushing it to move and stop on the rails requires a high labor intensity for workers, and the efficiency is also very low and there are safety risks.

[0003] Therefore, this work can also be done with a tractor, but the tractor is expensive, and there is no suitable place for the tractor to mount on the structure before the bogie falls off the car, so the tractor is not suitable. In addition, there is a tool specially used for train boosting. Its principle is to use a friction wheel close to the bogie wheel, and the motor drives the friction wheel to rotate, thereby rotating the bogie wheel, and finally achieving the purpose of moving the bogie. This method works well when the track is flush with the ground. However, in actual production, many processes of bogie assembly and maintenance are completed in the pit, and the track is supported by columns and suspended in the air. At this time, the aforementioned tools are not applicable. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a rail transit vehicle bogie moving device, thereby effectively solving the movement requirement of the bogie on the track.

[0005] A rail transit vehicle bogie moving device according to an embodiment of the first aspect of the present invention comprises two left and right rack guides, a moving frame is installed between the two left and right rack guides, the moving frame is composed of a table and left and right side plates, a power transmission mechanism is arranged in the moving frame and meshes with the rack guides, linear guides are arranged on the left and right sides of the table, a moving base plate is installed on the linear guides, the moving base plate is driven to move on the linear guides by the power mechanism, and a friction wheel driven by a motor is installed on the moving base plate for driving the bogie to move.

[0006] According to some embodiments of the present invention, the two left and right rack guide rails are respectively fixedly mounted on guide rail mounting plates, and the guide rail mounting plates are fixedly mounted on track columns.

[0007] According to some embodiments of the present invention, auxiliary bearings for clamping the guide rail mounting plate are provided on the left and right side plates.

[0008] According to some embodiments of the present invention, the power transmission mechanism includes a driving shaft driven by a driving motor, and helical gears are installed at both ends of the driving shaft. The helical gears extend out of the left and right side plates and mesh with the rack guide rails.

[0009] According to some embodiments of the present invention, auxiliary rollers are provided on the left and right side panels.

[0010] According to some embodiments of the present invention, the power mechanism is a cylinder.

[0011] According to some embodiments of the present invention, an adjustment limit block is provided at the bottom of the movable base plate.

[0012] According to some embodiments of the present invention, a buffer is provided at the bottom of the movable base plate.

[0013] According to some embodiments of the present invention, the motor is connected to the friction wheel via a transmission gear pair.

[0014] According to some embodiments of the present invention, the friction wheel is made of a steel core covered with rubber.

[0015] A rail transit vehicle bogie moving device according to an embodiment of the present invention has at least the following beneficial effects: the present invention realizes the automation of the on-track movement of the bogie, especially the movement of the bogie in the pit, which not only saves manpower and reduces labor intensity, but also, due to the use of an avoidance structure, does not affect the subsequent bogie movement at all.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 It is a usage state diagram of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the mobile frame assembly of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the mobile rack of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the friction wheel driving mechanism of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the movable base plate driving mechanism of the present invention; DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientation, such as orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In the description of the present invention, "a plurality" means more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] Reference Figures 1 to 3 A rail transit vehicle bogie moving device comprises two left and right rack guides 1, a moving frame 2 is installed between the two left and right rack guides 1, the moving frame 2 is composed of a platform 21 and left and right side plates 22, a power transmission mechanism 3 is arranged in the moving frame 2 to mesh with the rack guide 1, linear guides 4 are arranged on the left and right sides of the platform 21, a moving base plate 5 is installed on the linear guide 4, the moving base plate 5 is driven to move on the linear guide 4 by a power mechanism 6, and a friction wheel 8 driven by a motor 7 for driving the bogie to move is installed on the moving base plate 5.

[0029] Reference Figure 2The two left and right rack guide rails 1 are respectively fixedly mounted on the guide rail mounting plate 11, and the guide rail mounting plate 11 is fixedly mounted on the track column. The rack guide rail 1 adopts a V-shaped rack guide rail, which is a combination of a guide rail and a rack. In addition, the left and right side plates 22 are provided with auxiliary bearings 23 for clamping the guide rail mounting plate 11. There are four auxiliary bearings 23, which clamp the guide rail mounting plate 11 in pairs, which can help absorb the torque of the bogie reacting on the trolley and increase the stability of the system.

[0030] Reference Figure 4 Auxiliary rollers 24 are provided on the left and right side plates 22. This design can not only withstand the weight of the trolley and the reverse torque of the wheelset, but also drive the entire structure to move along the track.

[0031] Reference Figure 4 The power transmission mechanism 3 includes a driving shaft 32 driven by a driving motor 31, and bevel gears 33 are installed at both ends of the driving shaft 32. The bevel gears 33 extend out of the left and right side plates 22 and mesh with the rack guide 1. This design can drive on both sides at the same time to ensure smooth movement; at the same time, the driving motor 31 adopts a servo motor 10, and can cooperate with a servo reducer to provide power for the entire moving frame 2 to move on the rack guide 1.

[0032] Reference Figure 5 , the motor 7 is connected to the friction wheel 8 through the transmission gear pair 71. The friction wheel 8 is in direct contact with the bogie wheelset, and a torque is given to the wheelset through friction, so that the wheelset rotates and drives the bogie to move. The friction wheel 8 is made of a steel core covered with rubber. The steel core ensures strength. The part in contact with the wheelset is made of polyurethane material and is designed to be a V-shaped structure to increase the contact area. The polyurethane material has a large friction coefficient with steel and is soft and will not damage the product. In addition, as a key component, the friction wheel 12 is designed to be a structure that can be quickly replaced, which is convenient for replacement after wear; the motor 7 is a DC brushless motor, a combination of a DC brushless motor and a reducer. With the cooperation of the transmission gear pair 15, the rotation of the motor 7 is transmitted to the friction wheel 8. There are two drive structures, which drive a pair of wheels of the bogie at the same time.

[0033] Reference Figure 6 The power mechanism 6 is a cylinder, and the movable base plate 5 moves on the linear guide rail 4 under the drive of the cylinder; a buffer 52 is arranged at the bottom of the movable base plate 5, which mainly plays the role of eliminating the impact of the cylinder movement; in addition, an adjustment limit block 51 is arranged at the bottom of the movable base plate 5, and by adjusting the limit block 51, it can be ensured that the friction wheel 8 can be aligned with the bogie wheel pair when the cylinder is extended.

[0034] The present invention realizes the automation of the on-track movement of the bogie, especially the movement of the bogie in the pit, which not only saves manpower and reduces labor intensity, but also has no influence on the subsequent movement of the bogie due to the avoidance structure.

[0035] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A rail transit vehicle bogie moving device, characterized in that: The invention comprises two left and right rack guide rails (1), a movable frame (2) is installed between the two left and right rack guide rails (1), the movable frame (2) is composed of a table (21) and left and right side plates (22), a power transmission mechanism (3) is arranged in the movable frame (2) and meshes with the rack guide rail (1), the left and right sides of the table (21) are respectively provided with linear guide rails (4), a movable base plate (5) is installed on the linear guide rail (4), the movable base plate (5) is driven by a power mechanism (6) to move on the linear guide rail (4), and a friction wheel (8) driven by a motor (7) and used to drive the bogie to move is installed on the movable base plate (5); the two left and right rack guide rails (1) are respectively fixedly installed on a guide rail mounting plate (11), and the guide rail mounting plate (11) is fixedly installed on a track column.

2. A rail transit vehicle bogie moving device according to claim 1, characterized in that: The left and right side plates (22) are provided with auxiliary bearings (23) for clamping the guide rail mounting plate (11).

3. A rail transit vehicle bogie moving device according to claim 1, characterized in that: The power transmission mechanism (3) comprises a driving shaft (32) driven by a driving motor (31), and bevel gears (33) are mounted on both ends of the driving shaft (32). The bevel gears (33) extend out of the left and right side plates (22) and mesh with the rack guide rail (1).

4. A rail transit vehicle bogie moving device according to claim 1, characterized in that: Auxiliary rollers (24) are provided on the left and right side plates (22).

5. The rail transit vehicle bogie moving device according to claim 1, characterized in that: The power mechanism (6) is a cylinder.

6. The rail transit vehicle bogie moving device according to claim 1, characterized in that: An adjustment limit block (51) is provided at the bottom of the movable bottom plate (5).

7. The rail transit vehicle bogie moving device according to claim 1, characterized in that: A buffer (52) is provided at the bottom of the movable bottom plate (5).

8. The rail transit vehicle bogie moving device according to claim 1, characterized in that: The motor (7) is connected to the friction wheel (8) via a transmission gear pair (71).

9. The rail transit vehicle bogie moving device according to claim 1, characterized in that: The friction wheel (8) is made of a steel core covered with rubber.

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