An emergency rescue trolley applied to straddle-type monorail train

Abstract

This application relates to an emergency rescue trolley for straddle-type monorail trains, comprising: a running support frame corresponding to the rim mounting base of the running wheels of the straddle-type monorail train; running support wheels connected to the running support frame via a connecting structure; the connecting structure includes an I-shaped connecting frame, a connecting plate fixed to one end of the connecting frame, an axle seat connected to the side of the connecting plate away from the connecting frame, and an axle interference-fitted with the axle seat; two connecting frames are fixed to the running support frame at a certain angle, and the running support wheels are connected to the axles. The emergency rescue trolley designed in this application innovatively adopts a form that replaces the running wheels by mounting them to the gearbox, using the bottom running support wheels to support the operation of the faulty train. The overall structure of the device is simple and ingeniously designed, reducing its own weight while having a greater load-bearing capacity, and can be applied to rescue operations on straddle-type monorail trains.

Description

Technical Field

[0001] This application relates to the field of rail transit, and in particular to an emergency rescue vehicle for use on straddle-type monorail trains. Background Technology

[0002] As a newly emerging rail transit system in China in recent years, straddle-type monorail transit involves vehicles running on a single track beam, which is typically made of reinforced concrete or steel. With its unique advantages such as low operating noise, strong climbing ability, small turning radius, short construction period, and low cost, it plays an important role in alleviating urban traffic congestion and has broad market prospects.

[0003] The running wheels of existing straddle-type monorail bogies mainly consist of tires, supports, and rubber pads, bolted to the traction motor and gearbox. During normal operation, the traction motor drives the gearbox, which in turn rotates the running wheels, enabling smooth vehicle movement. However, when the traction motor or gearbox malfunctions and jams, the running wheels stop rotating, causing them to rub directly against the track beam. This friction can not only cause tire blowouts, rendering the vehicle immobile and forcing it to stop and await rescue, but also, due to the special structure of straddle-type monorail vehicles, the entire vehicle cannot be directly towed. Forcibly towing would cause destructive damage to the wheels, gearbox, motor, and even the track beam, severely impacting the operational safety and efficiency of rail transit.

[0004] Therefore, designing a new type of rescue trolley that does not damage train components or track beams when towing a faulty straddle-type monorail train is an urgent problem to be solved. Utility Model Content

[0005] The purpose of this application is to solve the problem in the prior art that the vehicle cannot move normally when the running wheels are stuck, and that forced towing will cause serious damage.

[0006] This application designs an emergency rescue trolley capable of supporting a disabled vehicle to continue moving after its running wheels are jammed. An emergency rescue trolley for use on straddle-type monorail trains includes:

[0007] The running support frame, as the main body, corresponds to the wheel rim mounting base of the straddle-type monorail train;

[0008] The traveling support wheel is connected to the traveling support frame via a connecting structure;

[0009] The connection structure includes an I-shaped connecting frame, a connecting plate fixed to one end of the connecting frame, a bearing connected to the side of the connecting plate away from the connecting frame, and a wheel axle that is interference-fitted with the bearing. There are two connecting frames that are fixed at a certain angle to the traveling support frame, and the traveling support wheel is connected to the wheel axle.

[0010] More specifically, the two connecting plates are fixedly connected by a horizontal plate.

[0011] More specifically, the axle seat and the wheel axle are connected by an interference fit in the middle, and both ends of the wheel axle are provided with running support wheels.

[0012] More specifically, the angle between the two connecting frames is between 60° and 90°.

[0013] More specifically, it also includes a train support plate, which is detachably connected to the outside of the connecting frame.

[0014] More specifically, the train support plate has a recessed structure in the middle.

[0015] More specifically, a storage plate is provided on the outside of the connecting frame, and the train support plate is detachably connected to the storage plate.

[0016] More specifically, the horizontal plate is provided with a storage structure for storing the jack.

[0017] More specifically, the horizontal plate can accommodate four jacks.

[0018] More specifically, the running support wheel is a solid wheel or an inflatable wheel, and the tread of the running support wheel is smooth.

[0019] The beneficial effects of this application are:

[0020] This application presents an innovative emergency rescue trolley for straddle-type monorail trains, which replaces the running wheels by mounting them directly to the gearbox. The trolley supports the disabled train via a bottom-mounted running support wheel system. The device boasts a simple and ingenious overall structure, reducing its weight while maximizing load capacity. It features a separate fixed support device and storage area, with detachable components used to lift the monorail train. When the running wheels of the straddle-type monorail train become jammed and the vehicle cannot move, the rescue trolley can be quickly installed at the gearbox, supporting the disabled vehicle to continue its journey to the rescue point. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the rescue vehicle in this application;

[0022] Figure 2 This is a side view of the rescue vehicle in this application;

[0023] Figure 3 This is a schematic diagram of the traveling support frame in this application;

[0024] Figure 4 This is a schematic diagram of the running support wheel system in this application;

[0025] Figure 5 This is a schematic diagram of the train support plate in this application;

[0026] Figure 6 This is a schematic diagram of the storage of the rescue vehicle in this application;

[0027] Figure 7 This is a schematic diagram of the rescue vehicle in use during the application, taken at a certain angle.

[0028] Figure 8 This is a schematic diagram from another angle showing the rescue vehicle in use in this application.

[0029] In the diagram: 11. Running support frame; 111. Rescue wheel rim; 112. Connecting frame; 113. Connecting plate; 114. Cross plate; 115. Storage plate; 12. Running support wheel system; 121. Axle seat; 122. Wheel axle; 123. Running support wheel; 21. Train support plate; 22. Jack; 31. Gearbox; 32. Bogie; 321. Traction seat; 322. Traction beam. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] like Figure 1 and Figure 2 As shown, this application relates to an emergency rescue trolley capable of supporting a disabled vehicle to continue moving after its running wheels are jammed. The rescue trolley includes a connected running support frame 11 and a running support wheel system 12. The running support frame 11 includes a rescue wheel rim 111, which corresponds to the running wheel rim mounting base (such as gearbox 31) of a straddle-type monorail train. The rescue wheel rim 111 matches the interface on the gearbox 31 and is provided with a corresponding through hole. The fixing bolts of the gearbox 31 can pass through the through hole of the rescue wheel rim 111, and the rescue wheel rim 111 is installed on the gearbox 31 with matching anti-loosening screws. When the running wheels of the monorail train are jammed and cannot move forward, the rescue trolley is used to first remove the running wheels of the monorail train from the gearbox 31, and then install the matching rescue wheel rim 111 on the gearbox 31, using the connected running support wheel system 12 to replace the failed running wheels for movement.

[0034] In some specific embodiments, such as Figure 3 As shown, the connecting structure includes a connecting frame 112, one end of which is fixed to the rescue wheel rim 111, and the other end is connected to a connecting plate 113. The running support wheel system 12 is connected to the connecting plate 113. In a further improvement, to reduce the weight of the connecting structure and enhance the connection strength and stability, the connecting frame 112 is I-shaped, comprising a first connecting frame and a second connecting frame. One end of the first connecting frame is fixed to the rescue wheel rim 111, and the other end is connected to a first connecting plate. One end of the second connecting frame is fixed to the rescue wheel rim 111, and the other end is connected to a second connecting plate. To strengthen the connection strength, the first connecting plate and the second connecting plate are fixedly connected by a cross plate 114. A strong triangular structure is formed between the rescue wheel rim 111, the first connecting frame, the first connecting plate, the cross plate 114, the second connecting plate, and the second connecting frame. The direction of the triangular structure can be consistent with or perpendicular to the track direction. To enhance the connection strength, the two connecting frames 112 are set at an angle of 60° to 90°. To avoid interference between the connecting frame 112 and the bolt fastening sleeve, notches were made at the four corners of the connecting frame 112.

[0035] like Figure 4 As shown, the running support wheel system 12 includes a bearing seat 121 connected to the connecting plate 113, a wheel axle 122 interference-fitted with the bearing seat 121, and a running support wheel 123 mounted on the wheel axle 122. The bearing seat 121 is fixed to the connecting plate 113 by nuts, rather than directly connected to the connecting frame 112. This connection method has advantages such as high installation efficiency and anti-loosening. When multiple nuts are used for installation and fixing, the anti-loosening of each nut needs to be considered individually. If any nut falls off, it will bring unpredictable danger to the vehicle. Since the connecting plate 113 is connected to multiple bolts at the same time, the loosening of a single bolt will not affect the driving safety, and it has good anti-loosening performance. When tightening the bolt and nut structure, the bolts and nuts need to be tightened with torque at the same time to prevent the bolts and nuts from rotating at the same time. The connecting plate 113 can be manually tightened first. At this time, the multiple bolts have fixed the connecting plate 113 to each other, and torque can be applied directly to the bolts, saving the time of fixing nuts and improving installation efficiency.

[0036] The travel support wheel 123 can be a solid rubber wheel or an inflatable rubber wheel. Preferably, the contact surface (tread) between the travel support wheel 123 and the track is flat, i.e., a smooth tire. Each connecting plate 113 is fixedly connected to a travel support wheel system, and a travel support wheel system can be configured to have one, two, or more travel support wheels 123.

[0037] like Figure 5 As shown, the rescue trolley also includes a train support plate 21 and matching jacks 22. When the train's running wheels fail, the train needs to be lifted before installing the rescue trolley. Figure 8 As shown, when the train needs to be lifted, the two train support plates 21 are placed at the bottom of the monorail train bogie traction seat 321 and traction beam 322, respectively. The jack 22 is then placed at the bottom of the train support plate 21, and the jack is activated to lift the train. In a further improvement, the train support plate 21 is designed with a U-shaped structure. Its advantage is that the hollow structure of the traction seat 321 has a weaker load-bearing capacity at its bottom, and the concave center of the train support plate 21 avoids damage to the hollow structure of the traction seat 321. The top edges of the train support plate 21 respectively engage with the bottom edges of the traction beam 322, effectively distributing the vertical load and preventing stress concentration caused by the jack 22 at a single point, thus avoiding permanent damage.

[0038] In further improvements, such as Figure 6As shown, the train support plate 21 is detachably connected to the storage plate 115 on the outside of the connecting frame 112. The storage plate 115 is a box-shaped design, with its bottom welded to the connecting plate 113. The side plates of the storage plate 115 have a tapered design near the I-beam frame 112. One end of the train support plate 21 is connected to the storage plate 115, and the train support plate 21 is tilted towards the traveling support frame 11. The jacks 22 can be placed on the horizontal plate 114, which has a storage structure for fixing the jacks. The storage structure can be a groove or a magnetic structure. The horizontal plate 114 is designed to hold four jacks.

[0039] like Figure 7 As shown, the straddle-type monorail bogie emergency rescue trolley designed in this application replaces the damaged running wheels and is installed on the gearbox 31. The running support wheel 123 contacts the track beam and supports the vehicle body to move.

[0040] The embodiments of this application have been described in detail above, but this application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this application, and these variations still fall within the protection scope of this application.

Claims

1. An emergency rescue trolley for use on straddle-type monorail trains, characterized in that, include: The running support frame, as the main body, corresponds to the wheel rim mounting base of the straddle-type monorail train; The traveling support wheel is connected to the traveling support frame via a connecting structure; The connection structure includes an I-shaped connecting frame, a connecting plate fixed to one end of the connecting frame, a bearing connected to the side of the connecting plate away from the connecting frame, and a wheel axle that is interference-fitted with the bearing. There are two connecting frames that are fixed at a certain angle to the traveling support frame, and the traveling support wheel is connected to the wheel axle.

2. The emergency rescue vehicle according to claim 1, characterized in that, The two connecting plates are fixedly connected by a horizontal plate.

3. The emergency rescue vehicle according to claim 1, characterized in that, The axle seat is interference-fitted to the wheel axle, and both ends of the wheel axle are provided with running support wheels.

4. The emergency rescue vehicle according to claim 1, characterized in that, The angle between the two connecting frames is between 60° and 90°.

5. The emergency rescue vehicle according to claim 1, characterized in that, It also includes a train support plate, which is detachably connected to the outside of the connecting frame.

6. The emergency rescue vehicle according to claim 5, characterized in that, The train support plate has a recessed structure in the middle.

7. The emergency rescue vehicle according to claim 5, characterized in that, A storage plate is provided on the outside of the connecting frame, and the train support plate is detachably connected to the storage plate.

8. The emergency rescue vehicle according to claim 2, characterized in that, The horizontal plate is equipped with a storage structure for storing the jack.

9. The emergency rescue vehicle according to claim 8, characterized in that, The horizontal plate can accommodate four jacks.

10. The emergency rescue vehicle according to claim 1, characterized in that, The running support wheel is a solid wheel or an inflatable wheel, and the tread of the running support wheel is smooth.

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