A height-adjustable rail vehicle rescue trolley

Abstract

The present invention relates to a height-adjustable rail vehicle rescue trolley, comprising a frame, two mounting seats installed in the frame, a receiving cavity formed between the two mounting seats, and a wheelset on the rail vehicle placed in the receiving cavity; an eccentric shaft is provided at each end of the frame, a supporting wheel set is installed on the eccentric shaft, and the eccentric shaft is provided with a driving part, which drives the eccentric shaft to rotate and lift the frame; an anti-rotation component is provided between the frame and the eccentric shaft, and the anti-rotation component prevents the eccentric shaft from resetting during operation. The present invention, through the cooperation of the above-mentioned various components, can independently complete the rail rescue trolley that lifts the wheels without the aid of other equipment, and is easy and convenient to operate with a high safety factor.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicles, in particular to a height-adjustable rail vehicle rescue trolley. Background Art

[0002] Rail vehicles rotate using steel wheels in contact with the rails. If a drive system failure or a bearing failure prevents the wheels from rotating, the vehicle becomes immobile. This requires a rescue vehicle to lift the wheels and replace them on the tracks to facilitate vehicle rescue. Existing rail vehicle rescue vehicles are simply a bracket with two wheels. During rescue, the wheels must be lifted to a certain height using a jack before the rescue vehicle can be attached to the wheels. Installation of these rescue vehicles is complex, requiring both wheels to be lifted simultaneously, and requiring high operator coordination. Because the wheels are lifted to a high height, a malfunction and pressure release from the jack pose a significant risk to the operator, necessitating the absolute reliability of the jack and other equipment. Sufficient space must be provided for the jack during installation, and the rescue location must be open and flat. Jacks are difficult to place on rail bridges or mountain slopes, making rescue operations difficult. Therefore, these rescue vehicles, which require additional equipment for assistance, have limited applicability, complex operation procedures, and require a high number of operators. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a height-adjustable rail vehicle rescue trolley, which can lift the wheels without the help of other tools by using an eccentric shaft.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a height-adjustable rail vehicle rescue trolley, comprising a frame, two mounting seats installed in the frame, a receiving cavity formed between the mounting seats, and the wheels on the rail vehicle placed in the cavity; eccentric shafts are respectively provided at both ends of the frame, a supporting wheel group is installed on the eccentric shaft, a bearing is provided inside the supporting wheel group, and the eccentric shaft is provided with a driving part, which drives the eccentric shaft to rotate and lift the frame in the supporting wheel group; an anti-rotation component is provided between the frame and the eccentric shaft, and the anti-rotation component prevents the eccentric shaft from resetting.

[0005] More specifically, the frame includes a first frame upright plate and a second frame upright plate, the first frame upright plate and the second frame upright plate are fixedly connected, and the mounting seat is installed between the first frame upright plate and the second frame upright plate.

[0006] More specifically, the eccentric shaft includes a wheelset shaft and eccentric shaft segments arranged on both sides of the wheelset shaft, and the supporting wheelset is mounted on the wheelset shaft.

[0007] Further specifically, the anti-rotation assembly includes an anti-rotation block arranged on the frame and an eccentric shaft block arranged on the eccentric shaft; when the eccentric shaft rotates to reach the working position, the eccentric shaft block contacts the anti-rotation block; when the anti-rotation block contacts the eccentric shaft block, the final position of the eccentric shaft block bypasses the lowest position of the movement path.

[0008] More specifically, the mounting seats are arranged opposite to each other and the two opposite surfaces are arc-shaped, and an adjustment portion is provided on the arc-shaped surfaces.

[0009] More specifically, slots are provided on both sides of the mounting seat, and the adjustment portion is provided with an insert, which is inserted into the slots.

[0010] More specifically, the frame is provided with an anti-slip assembly, and when the anti-slip assembly reaches horizontality, the end portion of the anti-slip assembly covers the end face of the wheelset.

[0011] More specifically, the anti-slip assembly includes a shaft body installed in the frame, a nut arranged on the shaft body, and a baffle arranged on the shaft body.

[0012] More specifically, the anti-slip assembly passes through the first frame upright plate, the second frame upright plate and the mounting seat.

[0013] More specifically, a rib is provided on the frame, and the baffle reaches a working position when the baffle rotates and keeps horizontal contact with the rib.

[0014] The beneficial effects of the present invention are: (1) through the physical characteristics of the eccentric shaft, the eccentric shaft is rotated by the driving part to lift the frame and then lift the wheelset, and the anti-rotation block can prevent the eccentric shaft from resetting during operation, thereby ensuring the stability of the present invention during operation. Only one person is required to complete the installation process, which is simple to operate, saves manpower, is highly safe, and is not restricted by the environment; (2) by setting adjustment parts for different wheel diameters, it can adapt to wheelsets with different wheel diameters; (3) a special anti-slip component is designed, and the rail rescue vehicle is clamped to the wheel by installation, and the baffle can be prevented from falling off by the side guard structure to ensure safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a schematic structural diagram of the exploded view of the components of the present invention;

[0017] Figure 3 It is a schematic diagram of the framework structure of the present invention;

[0018] Figure 4 It is a schematic diagram of the eccentric shaft structure of the present invention;

[0019] Figure 5 It is a schematic structural diagram of the anti-slip assembly of the present invention.

[0020] In the figure: 1. Frame; 11. Anti-rotation block; 12. Side guard; 13. First frame upright; 14. Second frame upright; 2. Eccentric shaft; 21. Eccentric shaft block; 22. Eccentric shaft section; 23. Wheel set shaft; 3. Support wheel set; 4. Driving unit; 5. Mounting seat; 6. Adjusting unit; 7. Anti-slip assembly; 71. Shaft body; 72. Baffle; 73. Nut; 8. Wheel set. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] Reference Figure 2As shown, an embodiment of the present invention provides a height-adjustable rail vehicle rescue trolley, including a frame 15, two mounting seats 5 are installed in the frame 1, and a receiving cavity is formed between the mounting seats 5, and the wheelset 8 on the rail vehicle is placed in the cavity; here, the rescue trolley can be directly installed on the rail from the outside of the wheel. An eccentric shaft 2 is provided at each end of the frame 1. A support wheel assembly 3 is mounted on the eccentric shaft 2. The support wheel assembly 3 has bearings disposed therein. The eccentric shaft 1 is provided with a drive unit 4, which drives the eccentric shaft 2 to rotate within the support wheel assembly 3 to lift the frame 1. During installation, the rescue vehicle is tilted outward, and the outer edge of the support wheel assembly 3 is clamped on the rail. At this time, the eccentric shaft 1 is eccentrically directed upward. Since the support wheel assembly 3 has bearings disposed therein, the bearings disposed therein ensure relative rotation between the eccentric shaft and the support wheel assembly. Using a lever wrench, the drive unit 4 is rotated 180°. The drive unit 4 drives the eccentric shaft 2 to rotate within the support wheel assembly 3, causing the eccentric shaft 2 to rotate downward, thereby lifting the faulty wheel on the frame 1. An anti-rotation assembly is disposed between the frame 1 and the eccentric shaft 2 to prevent the eccentric shaft 1 from resetting. The mutual restraint between the anti-rotation assemblies prevents the eccentric shaft 1 from being repositioned by external forces during transportation, which could adversely affect the transportation process.

[0025] Reference Figure 2-4 As shown, the frame 1 includes a first frame upright 13 and a second frame upright 14, which are fixedly connected. The mounting block 5 is installed between the first and second frame uprights 13, 14. This semi-frame structure allows the wheelset to be installed on the mounting block 5 without the need for other tools. In this case, the second frame upright 14 is in contact with the outer side of the rim of the wheelset 8. The mounting block 5 is arranged opposite each other, and its two opposing surfaces are arc-shaped. An adjustment portion 6 is provided on each of the arc-shaped surfaces. Slots are provided on both sides of the mounting block, and the adjustment portion 6 is provided with an insert that is inserted into the slot. The arc-shaped surfaces are designed to facilitate wheelset stability. By varying the size of the adjustment block 6, it can accommodate wheelsets 8 of varying wheel diameters, making it more convenient to use. Furthermore, the mating properties of the insert and the slot facilitate replacement of the adjustment portion 6 for wheelsets 8 of varying wheel diameters.

[0026] In the implementation of the present invention, the eccentric shaft 2 includes a wheel set shaft 23 and eccentric shaft segments 22 arranged on both sides of the wheel set shaft, and the supporting wheel set 3 is installed on the wheel set shaft 23; here, through this structural setting, when driving the eccentric shaft 2, the frame 1 can be lifted more conveniently without affecting other working parts, and it is more smooth and convenient to use. The anti-rotation assembly includes an anti-rotation block 11 provided on the frame 1 and an eccentric shaft block 21 provided on the eccentric shaft 2. When the eccentric shaft 2 rotates to the working position, the eccentric shaft block 21 contacts the anti-rotation block 11. When the anti-rotation block 11 contacts the eccentric shaft block 21, the final position of the eccentric shaft block 21 bypasses the lowest position of the movement path. Here, by respectively providing the eccentric shaft block 21 and the anti-rotation block 11 on the eccentric shaft 2 and the frame 1, when the eccentric shaft 2 is subjected to uneven force during operation, the eccentric shaft 2 will be reset, but at this time the eccentric direction of the eccentric shaft 2 has passed the lowest position of the working path, so it will only rotate counterclockwise. When it rotates to a certain position, the eccentric shaft block 21 contacts the anti-rotation block 11 to prevent the eccentric shaft 2 from continuing to rotate. The eccentric shaft 2 cannot be reset, so that the work continues.

[0027] Reference Figure 1 、 Figure 3 as well as Figure 5 As shown, the frame 1 is provided with an anti-slip assembly 7, and when the anti-slip assembly 7 reaches horizontal, its end portion covers the end face of the wheelset 8; here, the setting of the anti-slip assembly 7 can clamp the wheelset 8 to prevent other accidents during the operation of the rescue vehicle. The anti-slip assembly 7 includes a shaft 71 installed in the frame 1, a nut 73 set on the shaft 71, and a baffle 72 set on the shaft. The anti-slip assembly 7 passes through the first frame upright 13, the second frame upright 14 and the mounting seat 5; here, through the setting of the above structure, when installing the wheelset 8, the wheelset 8 can be clamped to the rescue vehicle by tightening the nut 73, and the baffle 72 clamps the inner side of the wheel rim of the wheelset 8, and the baffle 72 prevents the wheel from falling off during transportation. A retaining edge 12 is provided on the frame 1, and the baffle 72 reaches the working position when it rotates and maintains horizontal contact with the retaining edge 12; here, when the anti-slip assembly 7 clamps the rescue trolley and the wheelset 8, the lower edge of the baffle 72 contacts and is positioned with the retaining edge 12, which can prevent the baffle 72 from falling off.

[0028] The main installation steps of the present invention are as follows: during installation, loosen the nut 73 of the anti-slip assembly 7, let the baffle 72 droop naturally, select the appropriate adjustment part 6 according to the wheel diameter size, and install the adjustment part on the mounting seat 5 through the slot and the insertion part; tilt the rescue trolley outward and clamp the outer edge of the supporting wheel group 3 to the rail, adjust the eccentric direction of the eccentric shaft section 22 of the eccentric shaft 2 to upward, straighten the rescue trolley, let the second frame vertical plate 14 fit the outer side of the rim of the wheelset 8, adjust the baffle 72 to the horizontal direction, clamp the inner side of the rim of the wheelset 8, and then tighten the nut 73 of the anti-slip assembly 7 Tightly clamp the rescue trolley and the wheelset 8. At this time, the lower side of the baffle 72 contacts and positions the baffle 72, which can prevent the baffle 72 from falling off. In this embodiment, the driving part 4 is a hexagonal column. The lever wrench is used in conjunction with the hexagonal column. Finally, the lever wrench is inserted into the driving part 4, and the lever wrench is rotated 180 degrees. The eccentric shaft block 21 is turned to the bottom and stuck on the anti-rotation block 11, so that the eccentric direction of the eccentric shaft 2 is downward. After adjusting the front and rear wheels into place, the frame of the rescue trolley is raised by about 10 mm, and then the wheels are lifted. The supporting wheel group 3 can replace the wheelset to ensure that the rescue trolley can move along the rails. After the wheels on both sides are lifted, the faulty wheelset can be lifted, the vehicle can be rescued, and can be returned to the warehouse at a low speed. The disassembly process of this solution is the opposite of the installation process.

[0029] Compared with the existing rail rescue trolley, the existing rescue trolley needs to use two jacks to synchronously lift one wheel pair by about 100mm before the rescue trolley can be installed on the wheel. The operation process requires the cooperation of 4 people to complete, and the base of the jack needs to be flat and have a sufficient area. The rescue trolley of the present invention only needs 1 person to complete the installation and operation. It is directly installed between the wheel and the track. Only a lever wrench is needed to lift the wheel. The required operating space is small and it can be operated in narrow spaces such as ramps, bridges or tunnels without being restricted by environmental conditions. The rescue trolley only needs to lift the wheel by about 10mm to ensure that the wheel leaves the track surface, avoiding the risk of overturning due to lifting the wheel too high. Since the lifting height is low, there is no need to lift the wheels on both sides synchronously, and they can be operated separately. Compared with the installation process of the existing rescue trolley, a lot of installation time can be saved.

[0030] It should be emphasized that the above are only preferred embodiments of the present invention and do not limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A height-adjustable rail vehicle rescue trolley, comprising a frame (1), characterized in that: Two mounting seats (5) are installed in the frame (1), and a receiving cavity is formed between the mounting seats (5), and the wheel pair (8) on the rail vehicle is placed in the cavity; an eccentric shaft (2) is provided at each end of the frame (1), and a supporting wheel group (3) is installed on the eccentric shaft (2), and a bearing is provided inside the supporting wheel group (3); the eccentric shaft (2) is provided with a driving part (4), and the driving part (4) drives the eccentric shaft (2) to rotate in the supporting wheel group (3) to lift the frame (1); an anti-rotation component is provided between the frame (1) and the eccentric shaft (2), and the anti-rotation component prevents the eccentric shaft (2) from resetting. The eccentric shaft (2) comprises a wheel set shaft (23) and eccentric shaft sections (22) arranged on both sides of the wheel set shaft (23); the supporting wheel set (3) is mounted on the wheel set shaft (23). The anti-rotation assembly comprises an anti-rotation block (11) provided on the frame (1) and an eccentric shaft block (21) provided on the eccentric shaft (2); when the eccentric shaft (2) rotates to reach a working position, the eccentric shaft block (21) contacts the anti-rotation block (11); when the anti-rotation block (11) contacts the eccentric shaft block (21), the final position of the eccentric shaft block (21) bypasses the lowest position of the motion path.

2. The height-adjustable rail vehicle rescue trolley according to claim 1, characterized in that: The frame (1) comprises a first frame upright plate (13) and a second frame upright plate (14), wherein the first frame upright plate (13) and the second frame upright plate (14) are fixedly connected, and the mounting seat (5) is mounted between the first frame upright plate (13) and the second frame upright plate (14).

3. The height-adjustable rail vehicle rescue trolley according to claim 1, characterized in that The mounting seats (5) are arranged opposite to each other, and the two opposite surfaces are arc-shaped, and an adjustment portion (6) is provided on the arc-shaped surfaces.

4. The height-adjustable rail vehicle rescue trolley according to claim 3, characterized in that: Card slots are provided on both sides of the mounting seat (5), and the adjustment portion (6) is provided with an insert, which is inserted into the card slots.

5. The height-adjustable rail vehicle rescue trolley according to claim 4, characterized in that: The frame (1) is provided with an anti-slip assembly (7), and when the anti-slip assembly (7) reaches horizontality, the end portion of the anti-slip assembly (7) covers the end surface of the wheelset (8).

6. The height-adjustable rail vehicle rescue trolley according to claim 5, characterized in that: The anti-slip assembly (7) comprises a shaft (71) installed in the frame (1), a nut (73) arranged on the shaft, and a baffle (72) arranged on the shaft.

7. The height-adjustable rail vehicle rescue trolley according to claim 6, characterized in that: The anti-slip assembly (7) passes through the first frame upright plate (13), the second frame upright plate (14) and the mounting seat (5).

8. The height-adjustable rail vehicle rescue trolley according to claim 6, characterized in that: A retaining edge (12) is provided on the frame (1), and the retaining plate (72) reaches a working position when the retaining plate (72) rotates and maintains horizontal contact with the retaining edge (12).

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