A positioning mechanism for a bogie

Abstract

The application discloses a positioning mechanism of a bogie, which comprises cross beams on both sides of a track, stop mechanisms and positioning clamping mechanisms installed on the cross beams; the stop mechanisms of the application mainly prevent the bogie wheels from advancing through blocking blocks, the blocking blocks are lifted to block the bogie when needed and are lowered to release the bogie when not needed; under the detection of sensors, the positioning clamping mechanisms are driven by air cylinders to press the retractable plates against the side edges of the bogie wheels, so that the bogie is prevented from retreating after being stopped, and the positioning function is realized. The application can realize the accurate positioning of the bogie without manual intervention, and provides a good foundation for the automatic detection of subsequent equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail transit vehicles, in particular to a positioning mechanism of a bogie. BACKGROUND

[0002] The bogie, as one of the most important components in the structure of a rail transit vehicle, plays a key role in the operation of the vehicle. Therefore, the inspection and repair of the bogie are very important before the assembly of a new vehicle or in the subsequent maintenance. The common practice for the inspection and repair of the bogie is to manually push the bogie above a pit, then check whether each part of the bogie meets the requirements by manual observation, and after the inspection is completed, manually push the bogie out of the pit and transfer to the next process.

[0003] In recent years, with the progress of the industry and the encouragement of policies, automatic detection equipment is increasingly widely used in the inspection and repair of the bogie. In the past, when the bogie was manually detected, there was no strict requirement for the position of the bogie on the track, and only a stopper was placed at the approximate position of the bogie on the track by manual operation.

[0004] In the existing production environment, the bogie is generally manually pushed on the track. To stop the bogie, it is necessary to manually slow down, place a rubber stopper under the tread of the bogie wheel after reaching the appropriate position, stop the bogie, and then place a stopper behind the wheel to prevent the wheel from retreating, thereby completing the stopping and positioning of the bogie. It is very difficult to manually stop and accurately position the bogie from this process, and the bogie weighs nearly ten tons, making it very laborious to adjust the position.

[0005] However, with the application of automatic equipment, the position of the bogie on the track is repeatedly required, otherwise the equipment needs to increase investment in adaptability of the position, which is not conducive to cost control. Therefore, how to accurately stop the bogie at the same position and not move during detection is worth studying. SUMMARY

[0006] The present application aims to at least solve one of the problems in the prior art. To this end, the present application proposes a bogie positioning mechanism that can accurately position the bogie without manual intervention.

[0007] The bogie positioning mechanism of the present application comprises crossbeams on both sides of the track, a stopping mechanism and a positioning clamping mechanism are installed on the crossbeams.

[0008] The blocking mechanism comprises a power mechanism mounting seat mounted on the side of the cross beam and a guide rail mounting seat, the power mechanism mounting seat is provided with a first power mechanism, the guide rail mounting seat is movably provided with a jacking plate capable of being lifted up and down, the guide rail mounting seat is provided with a top block mounting seat, the top block mounting seat is hingedly connected with the middle part of a rotary top block, the upper end of the rotary top block is in contact with the jacking plate, the lower end of the rotary top block is hingedly connected with the first power mechanism, the jacking plate is connected with a blocking block, and the position where the blocking block is in contact with the wheel set of the bogie is wedge-shaped.

[0009] The positioning and clamping mechanism comprises a guide rail seat mounted on the upper surface of the cross beam, and the guide rail seat is movably provided with an expansion plate.

[0010] The cross beam is provided with a sensor for sensing the position of the wheel set of the bogie, and the sensor is connected with the second power mechanism.

[0011] According to some embodiments of the present application, the first power mechanism is a pneumatic cylinder, and the pneumatic rod of the pneumatic cylinder is hingedly connected with the lower end of the rotary top block.

[0012] According to some embodiments of the present application, the second power mechanism is a telescopic pneumatic cylinder, and the telescopic rod of the telescopic pneumatic cylinder is connected with the expansion plate.

[0013] According to some embodiments of the present application, the guide rail mounting seat and the jacking plate are connected through a guide rail.

[0014] According to some embodiments of the present application, the guide rail seat and the expansion plate are connected through a sliding rail.

[0015] According to some embodiments of the present application, the blocking block is made of plastic material.

[0016] According to some embodiments of the present application, the front end of the expansion plate is provided with a pressing block made of plastic material.

[0017] According to some embodiments of the present application, the cross beam is supported by a stand, the stand is welded with a connecting plate, the connecting plate is connected with a supporting plate through mounting bolts, and the supporting plate is connected with the cross beam through bolts.

[0018] According to some embodiments of the present application, the supporting plate is provided with a strip-shaped hole, and the strip-shaped hole is connected with the cross beam through bolts.

[0019] According to some embodiments of the present application, the positioning mechanism is arranged on both sides of the track and is symmetrically arranged.

[0020] The positioning mechanism of the bogie has at least the following beneficial effects: the stop mechanism of the application mainly prevents the bogie wheels from advancing by the blocking block, the blocking block is raised to block the bogie when needed and is lowered to release the bogie when not needed; under the detection of the sensor, the positioning and clamping mechanism is driven by the cylinder to press the telescopic plate against the side of the bogie wheel, so that the bogie is prevented from retreating after being stopped, and the positioning function is realized. The accurate positioning of the bogie can be realized without manual intervention, and a good foundation is provided for the automatic detection of subsequent equipment.

[0021] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following description and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] The application will be further described below with reference to the drawings and embodiments, in which:

[0023] Figure 1 The figure is a use state reference diagram of the application;

[0024] Figure 2 The figure is an installation structure diagram of the application;

[0025] Figure 3 The figure is a structure diagram of the application;

[0026] Figure 4 The figure is a cross beam installation structure diagram of the application;

[0027] Figure 5 The figure is a stop mechanism structure diagram of the application;

[0028] Figure 6 The figure is a positioning and clamping mechanism structure diagram of the application. DETAILED DESCRIPTION

[0029] The embodiments of the application are described in detail below, and examples of the embodiments are shown in the drawings, in which the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the application, and cannot be understood as a limitation on the application.

[0030] In the description of the application, it should be understood that the orientation description, such as the up, down, etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0031] In the description of the present application, more refers to more than two. If there is a description of the first, second, only for the purpose of distinguishing technical features, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0032] In the description of the present application, unless otherwise expressly limited, the words such as setting, installation, connection and the like should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0033] Referring to Figure 1 For the use state of the present application, reference is made to the figure, which includes a bogie running track 5, the track 5 including left and right two, the track 5 is supported by a column 11, the track 5 is installed in the foundation pit.

[0034] Referring to Figure 2 For the installation structure diagram of the present application, a positioning mechanism of a bogie, the positioning mechanism is arranged on both sides of the track 5, and is symmetrically arranged. The positioning mechanism includes a crossbeam 1 located on both sides of the track 5, the crossbeam 1 is a stop mechanism 2 and a positioning clamping mechanism 3 installation base.

[0035] Referring to Figure 3 For the structure diagram of the present application, the crossbeam 1 is provided with a stop mechanism 2 and a positioning clamping mechanism 3.

[0036] Referring to Figure 4 For the crossbeam 1 installation structure diagram of the present application; the crossbeam 1 is supported by a column 11, a connecting plate 12 is welded on the column 11, the connecting plate 12 is connected with a supporting plate 13 through installation bolts, and the supporting plate 13 is connected with the crossbeam 1 through bolts.

[0037] In order to adjust the error of the distance between the columns 11 and the welding deformation error, a strip-shaped hole is arranged on the supporting plate 13, and the strip-shaped hole is connected with the crossbeam 1 through bolts.

[0038] Referring to Figure 5 For the structure diagram of the stop mechanism 2 of the present application; the stop mechanism 2 includes a power mechanism mounting seat 21 and a guide rail mounting seat 22 mounted on the side surface of the crossbeam 1, the power mechanism mounting seat 21 is provided with a first power mechanism 23, the guide rail mounting seat 22 is movably mounted with a jacking plate 24 which can be lifted up and down, in order to facilitate movement, the guide rail mounting seat 22 and the jacking plate 24 are connected through a guide rail 221.

[0039] The top block mounting seat 25 is arranged on the guide rail mounting seat 22 and is hinged to the middle part of the rotary top block 26. In order to facilitate rotation, a rotating bearing 29 can be arranged at the hinge position. In addition, the hinge position can be designed to be eccentric, so that the swing angle is larger. The upper end of the rotary top block 26 is in contact with the jacking plate 24. In order to make the contact more smooth, the upper end of the rotary top block 26 is provided with a jacking bearing 28, which is installed at the long arm end of the rotary top block 26. The lower end of the rotary top block 26 is hinged to the first power mechanism 23. The jacking plate 24 is connected with the blocking block 27. The position where the blocking block 27 contacts with the wheel set of the bogie is wedge-shaped 271. The blocking block 27 is made of plastic material. Preferably, 90-degree polyurethane is used. This design can effectively avoid damage to the wheel set of the bogie when the wheel set is blocked. On the other hand, the hardness is relatively high, so that the elastic deformation of the wheel set of the bogie after contact is avoided. The first power mechanism of the blocking mechanism 2 is a gas cylinder. The pneumatic rod 231 of the gas cylinder is hinged to the lower end of the rotary top block 26.

[0040] When the gas cylinder pushes the pneumatic rod 231 to elongate, the pneumatic rod 231 pushes the rotary top block 26 to rotate. Thus, the extension and retraction action of the gas cylinder is converted into the swing action of the rotary top block 26. When swinging, the jacking bearing 28 can drive the jacking plate 24 to move up and down. The guide rail 221 can ensure the stability and precision of the movement. When the blocking block 27 blocks the wheel set of the bogie, the wheel set generates pressure and impact force on the blocking block 27. The force is transmitted to the jacking plate 24 and the jacking bearing 28 in turn, and finally is borne by the rotating bearing 29.

[0041] The initial position of the blocking mechanism 2 is raised. At this time, the blocking block 27 can block the wheel set of the bogie. When the signal is sent to release, the mechanism acts, and the blocking block 27 is lowered below the track 5. The bogie can pass normally.

[0042] Referring to Figure 6 The positioning and clamping mechanism 3 is a structural schematic view of the present application. The positioning and clamping mechanism 3 includes a guide rail seat 31 mounted on the upper surface of the cross beam 1. The guide rail seat 31 is provided with a retractable plate 32 which can move left and right. In order to facilitate movement, the guide rail seat 31 and the retractable plate 32 are connected through a sliding rail 311. The front end of the retractable plate 32 is provided with a pressing block 34 which is made of plastic material. Preferably, 90-degree polyurethane is used, which can avoid damage when pressing the wheel set of the bogie. The retractable plate 32 is pushed by the second power mechanism 33. The second power mechanism is a telescopic cylinder. The telescopic rod of the telescopic cylinder is connected with the retractable plate 32.

[0043] The cross beam 1 is provided with a sensor 4 for sensing the position of the wheel set of the bogie. The sensor 4 is connected with the second power mechanism 33. The sensor 4 can be an optical sensor.

[0044] When the photoelectric sensor detects that the bogie wheel contacts the blocking block 27, a signal is sent to the second power mechanism 33, the second power mechanism 33 pushes the telescopic plate 32 to start the clamping action, preventing the bogie from rebounding.

[0045] The stopping mechanism 2 of the present application mainly prevents the bogie wheel from advancing by the blocking block 27, the blocking block 27 is raised to block the bogie when needed, and is lowered to release the bogie when not needed; under the detection of the sensor 4, the positioning and clamping mechanism 3 drives the telescopic plate 32 to press against the side of the bogie wheel by the air cylinder, so that after stopping the bogie, the telescopic plate 32 prevents the bogie from retreating, realizing the positioning function. The present application can realize accurate positioning of the bogie without manual intervention, and provides a good foundation for automatic detection of subsequent equipment.

[0046] The above describes the preferred embodiments of the present application in detail. It should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the present application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the present application shall be within the protection scope defined by the claims.

Claims

1. A positioning mechanism for a bogie, characterized in that: It includes crossbeams (1) located on both sides of the track (5), and a stop mechanism (2) and a positioning clamping mechanism (3) are installed on the crossbeams (1); The stopping mechanism (2) includes a power mechanism mounting seat (21) and a guide rail mounting seat (22) installed on the side of the crossbeam (1). The power mechanism mounting seat (21) is provided with a first power mechanism (23). The guide rail mounting seat (22) is movably installed with a lifting plate (24) that can be raised and lowered. The guide rail mounting seat (22) is provided with a top block mounting seat (25). The top block mounting seat (25) is hinged to the middle of the rotating top block (26). The upper end of the rotating top block (26) is in contact with the lifting plate (24). The lower end of the rotating top block (26) is hinged to the first power mechanism (23). The lifting plate (24) is connected to the blocking block (27). The blocking block (27) is wedge-shaped (271) at the position where it contacts the bogie wheelset. The positioning and clamping mechanism (3) includes a guide rail seat (31) mounted on the upper surface of the crossbeam (1), and a telescopic plate (32) that can move left and right is mounted on the guide rail seat (31). The telescopic plate (32) is pushed by the second power mechanism (33). A sensor (4) for sensing the position of the bogie wheelsets is installed on the crossbeam (1), and the sensor (4) is connected to the second power mechanism (33).

2. A bogie positioning mechanism according to claim 1, characterized in that: The first power mechanism is a cylinder, and the pneumatic rod (231) of the cylinder is hinged to the lower end of the rotating top block (26).

3. A bogie positioning mechanism according to claim 1, characterized in that: The second power mechanism is a telescopic cylinder, and the telescopic rod of the telescopic cylinder is connected to the telescopic plate (32).

4. A bogie positioning mechanism according to claim 1, characterized in that: The guide rail mounting base (22) and the lifting plate (24) are connected by a guide rail (221).

5. A bogie positioning mechanism according to claim 1, characterized in that: The guide rail base (31) and the telescopic plate (32) are connected by a slide rail (311).

6. A bogie positioning mechanism according to claim 1, characterized in that: The blocking block (27) is made of plastic.

7. A bogie positioning mechanism according to claim 1, characterized in that: The front end of the telescopic plate (32) is provided with a clamping block (34), which is made of plastic.

8. A bogie positioning mechanism according to claim 1, characterized in that: The crossbeam (1) is supported by the column (11), and a connecting plate (12) is welded on the column (11). The connecting plate (12) is connected to the support plate (13) by mounting bolts, and the support plate (13) is connected to the crossbeam (1) by bolts.

9. A bogie positioning mechanism according to claim 8, characterized in that: The support plate (13) has a strip hole, which is connected to the crossbeam (1) by bolts.

10. A bogie positioning mechanism according to claim 1, characterized in that: The positioning mechanism is set on both sides of the track (5) symmetrically.

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