Inter-city railway vehicle roller overhauling device

Abstract

The utility model discloses an inter-city railway vehicle roller overhauling device which comprises a square frame, a fixing plate used for clamping a roller mounting seat is fixed on the lower side of the interior of the square frame, a bolt is connected to the lower portion of the square frame in a penetrating mode through threads, and the bolt mounting position is located in the center of the fixing plate. As the contact surface of the roller overhauling device and the roller is a plane, under the same acting force, when the roller overhauling device is used for replacing the roller, the acting force on the roller is dispersed on the plane of the roller and is smaller than the acting force of a knocking point of a rubber hammer, the roller is not damaged, the risk of damage in the roller mounting process is reduced, and the service life of the roller is prolonged. The roller damage replacement cost is saved, and the requirement for overhauling the rollers of the sliding plug door of the intercity motor train unit is met. The roller overhauling device is small and exquisite, even if the operation space of an existing vehicle is narrow, the purpose of pressing the roller can be achieved by rotating the bolt through the ratchet wrench, operation is easy and convenient, and the overhauling efficiency of the sliding plug door is improved.

Description

Technical Field

[0001] The utility model relates to an intercity EMU vehicle maintenance device, in particular to an intercity rail vehicle roller maintenance device. Background Art

[0002] During roller inspection on intercity rail vehicle plug doors, if damage, cracks, lag, or unusual noises are detected, the rollers must be replaced. Currently, the rollers and roller mounts are press-fitted, requiring the rollers to be press-fitted onto the mounts. Hitting the rollers with a rubber hammer can damage them, making replacement impossible. Alternatively, removing the rollers and replacing them with external equipment can hinder plug door inspection progress and fail to meet intercity EMU maintenance requirements. Furthermore, roller replacement on existing vehicles is difficult due to the limited space available. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a device for facilitating the maintenance of rollers of intercity rail vehicles.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: a roller maintenance device for intercity rail vehicles, which includes a square frame, a fixing plate for clamping the roller mounting seat is fixed on the lower side of the interior of the square frame, and bolts are threaded through the lower part of the square frame, and the bolt installation position is located at the center of the fixing plate.

[0005] According to some embodiments of the present invention, the fixing plate is concave as a whole.

[0006] According to some embodiments of the present invention, the fixing plate is welded to the lower side of the inner portion of the square frame.

[0007] According to some embodiments of the present invention, an adjustment hole is provided on the top of the square frame.

[0008] According to some embodiments of the present invention, adjustment through holes are provided on the left and right sides of the square frame.

[0009] According to some embodiments of the present invention, the left and right adjustment through holes are symmetrical to each other.

[0010] According to some embodiments of the present invention, the left and right adjustment through holes are located at the upper portion of the fixing plate.

[0011] According to some embodiments of the present invention, the square frame and the fixing plate are made of aluminum plates.

[0012] According to some embodiments of the present invention, the bolt is a hexagonal head bolt.

[0013] The utility model discloses at least has following beneficial effect: because the contact surface of the roller maintenance device and the roller is plane, under the same force, adopts the roller maintenance device to replace the roller, and the force that the roller receives is dispersed on the roller plane, and the point force of rubber hammer knocking is small, and has not caused the damage to the roller, has reduced the risk of damage in the roller installation process, has saved the cost of roller damage replacement, satisfies the intercity motor train unit slat damper roller maintenance requirement. And the roller maintenance device is small, even if the present car operating space is narrow, also can realize the purpose of pressure assembly roller through the ratchet wrench rotation bolt, and the operation is simple, convenient, improves the slat damper maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model makes further explanation from the following combined with the drawing and embodiment, wherein:

[0015] Figure 1 It is the structural schematic diagram of the utility model;

[0016] Figure 2 It is the structural schematic diagram of the utility model before pressure assembly state;

[0017] Figure 3 It is the structural schematic diagram of the utility model after pressure assembly state. DETAILED DESCRIPTION

[0018] The embodiment of the utility model is described in detail below, and the examples of the embodiment are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0019] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship of up, down, etc. is based on the orientation or position relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as limiting the utility model.

[0020] In the description of the utility model, more refers to two or more. If there is a description of first, second, only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0021] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0022] Reference Figure 1 A roller maintenance device for intercity rail vehicles includes a square frame 1, a fixing plate 2 for clamping a roller mounting seat is welded to the lower side of the square frame 1, and the fixing plate 2 is concave as a whole. The square frame 1 and the fixing plate 2 are made of aluminum plates. A bolt 3 is threaded through the lower part of the square frame 1. The bolt 3 is installed at the center of the fixing plate 2, and the bolt 3 is a hexagonal head bolt.

[0023] In order to facilitate the adjustment of the position of the roller mounting seat, an adjustment hole 11 is opened on the top of the square frame 1, and adjustment through holes 12 are set on the left and right sides of the square frame 1. The left and right adjustment through holes 12 are symmetrical to each other, and the left and right adjustment through holes 12 are located on the upper part of the fixed plate 2.

[0024] Reference Figure 2 、 Figure 3 When in use, first place the roller mounting seat on the fixing plate 2, pre-assemble the roller on the roller mounting seat, tighten the bottom hexagonal head bolt with a ratchet wrench, and convert the tightening force of the bolt 3 into pressure, pressing the roller mounting seat upward to fit the roller, and further apply tightening force until the roller is completely pressed onto the roller mounting seat.

[0025] Because the contact surface between the roller repair device and the roller is flat, using the roller repair device to replace the roller under the same applied force disperses the force on the roller surface and is less force than a single point strike with a rubber hammer, preventing damage to the roller. This reduces the risk of damage during installation and the cost of replacing damaged rollers, meeting the requirements for roller repair on intercity EMU plug doors. The roller repair device is also compact, allowing the roller to be pressed in by turning a bolt with a ratchet wrench, even in cramped operating space on existing trains. This simple and convenient operation improves plug door repair efficiency.

[0026] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. An intercity rail vehicle roller maintenance device, characterized by: The invention comprises a square frame (1), wherein a fixing plate (2) for clamping a roller mounting seat is fixed on the lower side of the interior of the square frame (1), a bolt (3) is threadedly connected to the lower part of the square frame (1), and the bolt (3) is installed at the center of the fixing plate (2).

2. The intercity rail vehicle roller maintenance device according to claim 1, characterized in that: The fixing plate (2) is concave in shape as a whole.

3. The intercity rail vehicle roller maintenance device according to claim 1, characterized in that: The fixing plate (2) is welded to the lower side of the interior of the square frame (1).

4. The intercity rail vehicle roller maintenance device according to claim 1, characterized in that: An adjustment hole (11) is provided on the top of the square frame (1).

5. The intercity rail vehicle roller maintenance device according to claim 1, characterized in that: Adjustment through holes (12) are provided on the left and right sides of the square frame (1).

6. The intercity rail vehicle roller maintenance device according to claim 5, characterized in that: The left and right adjustment through holes (12) are symmetrical to each other.

7. The intercity rail vehicle roller maintenance device according to claim 5, characterized in that: The left and right adjustment through holes (12) are located on the upper part of the fixing plate (2).

8. The intercity rail vehicle roller maintenance device according to claim 1, characterized in that: The square frame (1) and the fixing plate (2) are made of aluminum plates.

9. The intercity rail vehicle roller maintenance device according to claim 1, characterized in that: The bolt (3) is a hexagonal head bolt.

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