Limiting stopper for bogie

Abstract

The limiting stopper for the bogie comprises a frame, a positioning pin is fixedly connected to the upper surface of the frame, a protective pad is fixedly connected to the outer surface of the positioning pin, a screw is connected to the inner surface of the frame in a sliding mode, a first screw hole is formed in the upper surface of the frame, and a second screw hole is formed in the lower surface of the frame. A second screw hole and a stopping mechanism are arranged on the upper surface of the protective pad, the stopping mechanism comprises a base, rubber, a positioning groove hole and a wear-resisting plate, the upper surface of the base is fixedly connected with the rubber, the positioning groove hole is formed in the upper surface of the base, and the inner surface of the rubber is fixedly connected with the wear-resisting plate; by arranging the stop mechanism, the situation that the vertical displacement of a vehicle is too large can be limited while flexible connection is achieved, the driving stability and the riding comfort are improved, the requirements for vertical rigidity and rigid stop limiting can be met, the situation that a vehicle frame is possibly damaged due to excessive twisting or bending is prevented, and the service life of the vehicle is prolonged. And the service life of the vehicle can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bogies, in particular to a limit stop for bogies. Background Art

[0002] The limit stop is installed on the bogie, and its main function is to limit the excessive vertical displacement of the vehicle, thereby reducing the suspension gap; buffering the vertical impact between the car body and the bogie to ensure riding comfort. Due to functional requirements, the limit stop needs to meet the requirements of relatively large vertical stiffness and rigid stop limit under the premise of large displacement. Therefore, in order to meet this requirement, we need to develop a new structure of limit stop to solve this problem. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a limit stop for a bogie. By setting a stop mechanism, a flexible connection can be achieved while limiting the occurrence of excessive vertical displacement of the vehicle, thereby improving driving stability and riding comfort. The requirements of vertical stiffness and rigid stop limit can also be met, thereby preventing frame damage that may be caused by excessive twisting or bending, and helping to extend the service life of the vehicle.

[0004] The utility model also provides a limit stop for a bogie as described above, comprising: a frame, a positioning pin fixedly connected to the upper surface of the frame, a protective pad fixedly connected to the outer surface of the positioning pin, a screw slidably connected to the inner surface of the frame, a first screw hole being provided on the upper surface of the frame, and a second screw hole being provided on the upper surface of the protective pad.

[0005] A stop mechanism, the stop mechanism includes a base, rubber, a positioning slot and a wear-resistant plate, the upper surface of the base is fixedly connected to the rubber, the upper surface of the base is provided with a positioning slot, the inner surface of the rubber is fixedly connected to the wear-resistant plate, the upper surface of the wear-resistant plate is provided with a pin hole, and the upper surface of the base is provided with a third screw hole. By setting up the stop mechanism, a flexible connection can be achieved while limiting the occurrence of excessive vertical displacement of the vehicle, thereby improving driving stability and riding comfort, and also meeting the requirements of vertical stiffness and rigid stop limit, preventing frame damage due to excessive twisting or bending, and helping to extend the service life of the vehicle.

[0006] According to the limit stop for a bogie, the inner surface of the first screw hole is connected to the second screw hole, and the inner surface of the second screw hole is connected to the third screw hole, so that the screws can be passed through to fix the base.

[0007] According to the limit stop for a bogie, a gasket is slidably connected to the outer surface of the screw, and the number of the gaskets is four and arranged in a circular array, so as to prevent the screw from being vibrated loose and ensure the tightening of the screw.

[0008] According to the limit stop for a bogie, the outer surface of the screw is slidably connected to the base, and the outer surface of the screw is slidably connected to the protective pad.

[0009] According to the limit stop for a bogie, the outer surface of the positioning pin is slidably connected to the positioning slot hole, and the number of the first screw holes is four and arranged in a circular array, which facilitates the connection of the positioning pin to position the base.

[0010] According to the limit stop for a bogie, a mounting groove is provided on the upper surface of the rubber, and the outer surface of the wear-resistant plate is fixedly connected to the mounting groove to prevent the rubber from being worn during operation and extend the service life of the stop.

[0011] According to the limit stop for a bogie, the number of the screws is four and they are arranged in a circular array, and the upper surface of the positioning pin is slidably connected to the rubber.

[0012] According to the limit stop for a bogie, the lower surface of the base is slidably connected to the protective pad, and a nut is threadedly connected to the end of the screw away from the gasket, which facilitates interaction with the screw so that the base can be mounted and fastened to the frame.

[0013] According to the limit stop for a bogie, the base, the wear-resistant plate and the rubber are put into a special mold and vulcanized according to a vulcanization process, so that a flexible connection can be achieved.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is an overall structural diagram of a limit stop for a bogie of the utility model;

[0017] Figure 2 It is an exploded view of a limit stop for a bogie of the utility model;

[0018] Figure 3 It is a partial structural diagram of a limit stop for a bogie of the utility model;

[0019] Figure 4 The utility model is a partial structural sectional view of a limit stop for a bogie.

[0020] Legend:

[0021] 1. Frame; 2. Positioning pin; 3. Protective pad; 4. Screw; 5. First screw hole; 6. Second screw hole; 7. Base; 8. Rubber; 9. Positioning slot hole; 10. Wear-resistant plate; 11. Pin hole; 12. Third screw hole; 13. Gasket; 14. Mounting slot; 15. Nut. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-4 The utility model embodiment is a limit stop for a bogie, comprising: a frame 1, a positioning pin 2 is fixedly connected to the upper surface of the frame 1, a protective pad 3 is fixedly connected to the outer surface of the positioning pin 2, a screw 4 is slidably connected to the inner surface of the frame 1, the number of the screws 4 is four and they are arranged in a circular array, the outer surface of the screw 4 is slidably connected to the protective pad 3, the outer surface of the screw 4 is slidably connected to a gasket 13, the number of the gaskets 13 is four and they are arranged in a circular array, a nut 15 is threadedly connected to one end of the screw 4 away from the gasket 13, a first screw hole 5 is provided on the upper surface of the frame 1, the number of the first screw holes 5 is four and they are arranged in a circular array, a second screw hole 6 is provided on the upper surface of the protective pad 3, and the inner surface of the first screw hole 5 is connected to the second screw hole 6.

[0024] The stop mechanism includes a base 7, a rubber 8, a positioning slot 9 and a wear-resistant plate 10. The lower surface of the base 7 is slidably connected to the protective pad 3, the upper surface of the positioning pin 2 is slidably connected to the rubber 8, the outer surface of the screw 4 is slidably connected to the base 7, the upper surface of the rubber 8 is provided with a mounting groove 14, the outer surface of the wear-resistant plate 10 is fixedly connected to the mounting groove 14, the outer surface of the positioning pin 2 is slidably connected to the positioning slot 9, the upper surface of the base 7 is fixedly connected to the rubber 8, the upper surface of the base 7 is provided with a positioning slot 9, the inner surface of the rubber 8 is fixedly connected to the wear-resistant plate 10, the upper surface of the wear-resistant plate 10 is provided with a pin hole 11, the upper surface of the base 7 is provided with a third screw hole 12, and the inner surface of the second screw hole 6 is connected to the third screw hole 12.

[0025] Working principle: the position of the base 7 is determined by the positioning pin 2, and the screw 4 is passed through the screw hole to fix the base 7 and the frame 1 with the nut 15. The gasket 13 between the screw 4 and the base 7 can prevent the screw 4 from loosening, ensuring that the position of the stop device will not shift. A protective pad 3 is arranged between the base 7 and the frame 1 to prevent wear between the base 7 and the frame 1 and extend the service life of the stop. During the driving of the vehicle, the body will undergo vertical movement when it is bumpy. When the body descends, the body will be pressed onto the rubber 8. The rubber 8 can buffer and limit the body to prevent the body from excessive vertical displacement, thereby improving driving stability and ride comfort, and can also meet the requirements of vertical stiffness and rigid stop limit to prevent damage to the frame 1 that may be caused by excessive twisting or bending.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A limit stop for a bogie, characterized in that: include: A vehicle frame (1), wherein a positioning pin (2) is fixedly connected to the upper surface of the vehicle frame (1), a protective pad (3) is fixedly connected to the outer surface of the positioning pin (2), a screw (4) is slidably connected to the inner surface of the vehicle frame (1), a first screw hole (5) is provided on the upper surface of the vehicle frame (1), and a second screw hole (6) is provided on the upper surface of the protective pad (3); A stop mechanism, the stop mechanism comprising a base (7), a rubber (8), a positioning slot (9) and a wear-resistant plate (10), the upper surface of the base (7) being fixedly connected to the rubber (8), the upper surface of the base (7) being provided with a positioning slot (9), the inner surface of the rubber (8) being fixedly connected to the wear-resistant plate (10), the upper surface of the wear-resistant plate (10) being provided with a pin hole (11), and the upper surface of the base (7) being provided with a third screw hole (12).

2. A limit stop for a bogie according to claim 1, characterized in that: The inner surface of the first screw hole (5) is connected to the second screw hole (6), and the inner surface of the second screw hole (6) is connected to the third screw hole (12).

3. A limit stop for a bogie according to claim 1, characterized in that: The outer surface of the screw (4) is slidably connected to a gasket (13), and the number of the gaskets (13) is four and arranged in a circular array.

4. A limit stop for a bogie according to claim 1, characterized in that: The outer surface of the screw (4) is slidably connected to the base (7), and the outer surface of the screw (4) is slidably connected to the protective pad (3).

5. The limit stop for a bogie according to claim 1, characterized in that: The outer surface of the positioning pin (2) is slidably connected to the positioning slot hole (9), and the number of the first screw holes (5) is four and arranged in a circular array.

6. A limit stop for a bogie according to claim 1, characterized in that: The upper surface of the rubber (8) is provided with a mounting groove (14), and the outer surface of the wear-resistant plate (10) is fixedly connected to the mounting groove (14).

7. A limit stop for a bogie according to claim 1, characterized in that: The number of the screws (4) is four and they are arranged in a circular array, and the upper surface of the positioning pin (2) is slidably connected to the rubber (8).

8. The limit stop for a bogie according to claim 1, characterized in that: The lower surface of the base (7) is slidably connected to the protective pad (3), and the end of the screw (4) away from the gasket (13) is threadedly connected to a nut (15).

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