Chain elevator for railway wheel set
By using simple chain transmission devices and self-weight sliding mechanisms in the conveying equipment of railway vehicles, the problems of complex structure, large size and high cost of traditional equipment are solved, and a railway wheelset lift with simple structure, small size and low cost are realized.
Patent Information
- Application Number
- CN202510299659.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2025-06-13
AI Technical Summary
The conveying equipment of traditional railway wheel pairs is complex in structure, large in size and high in construction, making it difficult to meet the needs of railway vehicle maintenance and production.
Using a simple chain transmission device, the running trajectory of the bracket at the top follows the outer circular trajectory of the large sprocket, and the wheel pair is used to slide on the oblique rail, realizing the function of lifting from the low-level rail to the high-level rail or falling in reverse direction.
It realizes a railway wheel-to-wheel lift with a simple structure, small size and low cost, and overcomes the complexity and high cost problems of traditional equipment.
Smart Images
Figure CN120135985A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of maintenance and production of railway vehicles, and particularly to a chain elevator for railway wheelsets. Background Art
[0002] Currently, in the transportation of railway wheelsets, their vertical lifting transportation is basically achieved through scissor lifts, and their horizontal transportation is basically achieved through wheel pusher devices. Therefore, traditional wheelset transportation equipment not only has a complex structure, a large volume, but also is expensive.
[0003] The present invention adopts a simple chain drive device. The running track of the bracket at the top cleverly follows the track of the outer circle of the top of the large sprocket. The wheelset in the chain hoist slides on the inclined track by its own weight and then enters the high-position track, and the wheelset on the high-position track gradually falls into the chain descender by its own weight. Therefore, the present invention not only overcomes the defects of traditional scissor lifts and wheel pusher devices, but also has a simple structure, a small volume, and a low cost. Summary of the Invention
[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a chain elevator for railway wheelsets to solve the problems mentioned in the above background art.
[0005] To achieve the above purpose, the present invention provides the following technical solution: In a railway vehicle depot or vehicle factory, within the workshop 1, there are included a low-position track 1A, a high-position track 1B, a wheelset 2, and a chain elevator 3. The low-position track 1A and the high-position track 1B are located on the same straight line in a top view. The wheelset 2 includes an axle 2A located between two wheel discs and an outer wheel circle 2B. The chain elevator 3 located between the low-position track 1A and the high-position track 1B includes a frame 3A, a chain 4, a bracket 5, and a top sprocket device 6. The chain 4 includes a frame interface 4A, and the bracket 5 includes a groove 5A and a chain interface 5B. The bracket 5 is connected to the chain 4 through the frame interface 4A and the chain interface 5B. The top sprocket device 6 is installed on the frame 3A, and the top sprocket device 6 includes a large sprocket 6A; During the lifting process, the axle 2A is placed in the groove 5A of the bracket 5. When the bracket 5 is in the lowest position, it does not affect the entry and exit of the wheelset 2 on the low-position track 1A into and out of the chain elevator 3; when the groove 5A follows the bracket 5 and rotates along the pitch circle of the large sprocket 6A to the highest position together with the chain 4, it can prevent the wheelset 2 from falling to the low-position track 1A; through the chain elevator 3, the wheelset 2 can be lifted from the low-position track 1A to the high-position track 1B, or lowered from the high-position track 1B to the low-position track 1A.
[0006] As a further solution of the present invention: the chain elevator 3 includes a pin shaft 3B, the frame interface 4A includes a chain pin hole 4A1, and the chain interface 5B includes a bracket pin hole 5B1; the pin shaft 3B is inserted into the chain pin hole 4A1 and the bracket pin hole 5B1 to achieve the hinged connection between the bracket 5 and the chain 4.
[0007] As a further solution of the present invention: the chain elevator 3 includes a chain elevator 31 that lifts the wheelset 2 from the low-level track 1A to the high-level track 1B, and the high-level track 1B in the chain elevator 31 is inclined with the outside higher and the inside lower; when the groove 5A is at a high position and the large sprocket 6A continues to rotate, the outer circle of the axle 2A will break away from the groove 5A and fall, causing the outer circle 2B of the wheel to be placed on the inclined high-level track 1B and slide down out of the chain elevator 3.
[0008] As a further solution of the present invention: the chain elevator 3 includes a chain descender 32 for lowering the wheelset 2 from the high-level track 1B to the low-level track 1A, and the high-level track 1B in the chain descender 32 is inclined with the outside lower and the inside higher; when the groove 5A is in a high position, the groove 5A can block the wheelset 2 sliding downward along the inclined high-level track 1B. At this time, the large sprocket 6A is started to rotate, and the outer circle 2B of the wheel will detach from the high-level track 1B and fall, so that the groove 5A supports the axle 2A.
[0009] As a further solution of the present invention: the low-level track 1A and the high-level track 1B include steel rails and chain tracks 1C.
[0010] In summary, since the present invention adopts a simple chain transmission device, the running track of the bracket at the top cleverly follows the track of the outer circle of the top of the large sprocket. The wheel set in the chain hoist uses its own weight to slide on the inclined rail and then enter the high-position track. The wheel set on the high-position track gradually falls into the chain descender by its own weight. Therefore, the present invention does not have a traditional structure of a scissor-fork lift and a wheel puller. Compared with the prior art, the main advantages of the present invention are: simple structure, small size, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the high-level track 1B, the wheelset 2 and the chain lift 3 in the factory building 1, a structural schematic diagram of the axle 2A and the wheel outer circle 2B constituting the wheelset 2, a structural schematic diagram of the chain 4, the bracket 5 and the top sprocket device 6 constituting the chain lift 3, a structural schematic diagram of the frame interface 4A constituting the chain 4, a structural schematic diagram of the groove 5A and the link interface 5B constituting the bracket 5, and a structural schematic diagram of the large sprocket 6A constituting the top sprocket device 6; Figure 2 yes Figure 1 A-direction view, which is also a schematic diagram of the structure of the low-level track 1A in the plant 1; Figure 3 is Figure 1 the view from direction B of Figure 4 is Figure 3 the C-C view of , which is also the schematic structural view of the pin shaft 3B that makes up the chain hoist 3, the schematic structural view of the frame interface 4A that makes up the chain 4, the schematic structural view of the chain pin hole 4A1 that makes up the frame interface 4A, the schematic structural view of the groove 5A and the chain interface 5B that make up the bracket 5, and also the schematic structural view of the bracket pin hole 5B1 that makes up the chain interface 5B; Figure 5 is the schematic structural view of the wheel set 2 in the chain hoist 3 being a wheel set for a railway passenger car; Figure 6 is the schematic structural view of the chain hoist 31 that makes up the chain hoist 3, and also the schematic structural view of the bracket 5 in the lowest position; Figure 7 is the schematic structural view when the chain hoist 31 lifts the wheel set 2 to the center height of the large sprocket 6A; Figure 8 is the schematic structural view when the chain hoist 31 lifts the wheel set 2 to the highest position; Figure 9 is the schematic structural view when the bracket 5 returns to the lowest position after the chain hoist 31 completes the lifting operation of the wheel set 2; Figure 10 is the schematic structural view of the chain descender 32 that makes up the chain hoist 3, the schematic structural view of the bracket 5 in the highest position, the schematic structural view of the frame 3A that makes up the chain hoist 3, and also the schematic structural view of the chain track 1C that makes up the low - level track 1A and the high - level track 1B; Figure 11 is the schematic structural view when the wheel set 2 in the chain descender 32 is blocked by the groove 5A; Figure 12 is the schematic structural view when the wheel set 2 in the chain descender 32 is lowered to the center height of the large sprocket 6A; Figure 13 is the schematic structural view when the groove 5A is in the lowest position after the wheel set 2 in the chain descender 32 completes the descent; Figure 14 is the schematic structural view of the aerial conveyor line of the wheel set 2 composed of the chain hoist 31, the high - level track 1B, and the chain descender 32.
[0012] Workshop 1, low-position track 1A, high-position track 1B, chain track 1C, wheel set 2, axle 2A, outer circle of wheel 2B, chain elevator 3, frame 3A, pin shaft 3B, chain hoist 31, chain lowering machine 32, chain 4, frame interface 4A, chain pin hole 4A1, bracket 5, groove 5A, chain interface 5B, bracket pin hole 5B1, top sprocket device 6, large sprocket 6A. Detailed implementation mode
[0013] Next, the technical solutions in the embodiments of the present invention will be described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0014] Please refer to Figures 1 - 14 , in the embodiments of the present invention, in a railway vehicle depot or vehicle factory, Workshop 1 includes a low-position track 1A, a high-position track 1B, a wheel set 2, and a chain elevator 3. The low-position track 1A and the high-position track 1B are located on the same straight line in the top view. The wheel set 2 includes an axle 2A and an outer circle of the wheel 2B located between two wheel discs. The chain elevator 3 located between the low-position track 1A and the high-position track 1B includes a frame 3A, a chain 4, a bracket 5, and a top sprocket device 6. The chain 4 includes a frame interface 4A, and the bracket 5 includes a groove 5A and a chain interface 5B. The bracket 5 is connected to the chain 4 through the frame interface 4A and the chain interface 5B. The top sprocket device 6 is installed on the frame 3A, and the top sprocket device 6 includes a large sprocket 6A; During the lifting process, the axle 2A is placed in the groove 5A of the bracket 5. When the bracket 5 is in the lowest position, it does not affect the entry and exit of the wheel set 2 on the low-position track 1A into and out of the chain elevator 3; when the groove 5A follows the bracket 5 and rotates to the highest position along the pitch circle of the large sprocket 6A together with the chain 4, it can prevent the wheel set 2 from falling to the low-position track 1A; through the chain elevator 3, the wheel set 2 can be lifted from the low-position track 1A to the high-position track 1B, or lowered from the high-position track 1B to the low-position track 1A.
[0015] The chain elevator 3 includes a pin shaft 3B. The frame interface 4A includes a chain pin hole 4A1, and the chain interface 5B includes a bracket pin hole 5B1; the bracket 5 is hinged to the chain 4 by inserting the pin shaft 3B into the chain pin hole 4A1 and the bracket pin hole 5B1.
[0016] The chain elevator 3 includes a chain elevator 31 that lifts the wheelset 2 from the low-level track 1A to the high-level track 1B. The high-level track 1B in the chain elevator 31 is inclined with the outside higher and the inside lower. When the groove 5A is at a high position and the large sprocket 6A continues to rotate, the outer circle of the axle 2A will break away from the groove 5A and fall, causing the outer circle 2B of the wheel to be placed on the inclined high-level track 1B and slide down out of the chain elevator 3.
[0017] The chain elevator 3 includes a chain descender 32 for lowering the wheel set 2 from the high-level track 1B to the low-level track 1A. The high-level track 1B in the chain descender 32 is inclined with a low outside and a high inside. When the groove 5A is in a high position, the groove 5A can block the wheel set 2 sliding down along the inclined high-level track 1B. At this time, the large sprocket 6A is started to rotate, and the outer circle 2B of the wheel will detach from the high-level track 1B and fall, so that the groove 5A supports the axle 2A.
[0018] The low-level track 1A and the high-level track 1B include steel rails and chain tracks 1C.
[0019] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In the present invention, it should also be noted that the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integrally formed connection, a mechanical connection, or an indirect connection through an intermediate medium, and the specific meaning of the terms in the present invention can be understood based on the specific circumstances.
[0020] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A chain hoist for railway wheels, characterized in that A railway vehicle depot or vehicle factory building (1) includes a low rail (1A), a high rail (1B), a wheel set (2) and a chain hoist (3), wherein the low rail (1A) and the high rail (1B) are located on the same straight line in a top view, the wheel set (2) includes an axle (2A) and a wheel outer circle (2B) located between two wheel discs, and the chain hoist (3) located between the low rail (1A) and the high rail (1B) includes a frame (3A), a chain (4), a bracket (5) and a top sprocket device (6), the chain (4) includes a frame interface (4A), the bracket (5) includes a groove (5A) and a link interface (5B), and the bracket (5) is connected to the chain (4) through the frame interface (4A) and the link interface (5B). ) is connected, the top sprocket device (6) is installed on the frame (3A), and the top sprocket device (6) includes a large sprocket (6A); during the lifting process, the axle (2A) is placed in the groove (5A) of the bracket (5), and when the bracket (5) is at the lowest position, it does not affect the wheelset (2) on the low track (1A) from entering and exiting the chain lift (3); when the groove (5A) follows the chain (4) along the pitch circle of the large sprocket (6A) along with the bracket (5) to the highest position, it can prevent the wheelset (2) from falling to the low track (1A); through the chain lift (3), the wheelset (2) can be lifted from the low track (1A) to the high track (1B), or lowered from the high track (1B) to the low track (1A).
2. A chain hoist for railway wheels according to claim 1, characterized in that The chain lift (3) comprises a pin shaft (3B), a frame interface (4A) comprises a chain pin hole (4A1), and a chain interface (5B) comprises a bracket pin hole (5B1); the pin shaft (3B) is inserted into the chain pin hole (4A1) and the bracket pin hole (5B1), thereby realizing the hinge connection between the bracket (5) and the chain (4).
3. A chain hoist for railway wheels according to claim 1, characterized in that The chain hoist (3) comprises a chain hoist (31) for lifting the wheel set (2) from the low track (1A) to the high track (1B); the high track (1B) in the chain hoist (31) is inclined with a high outer side and a low inner side; when the groove (5A) is at a high position and the large sprocket (6A) continues to rotate, the outer circle of the axle (2A) will separate from the groove (5A) and fall, causing the outer circle of the wheel (2B) to rest on the inclined high track (1B) and slide downward out of the chain hoist (3).
4. A chain hoist for railway wheels according to claim 1, characterized in that The chain elevator (3) comprises a chain descender (32) for descending a wheel pair (2) from a high track (1B) to a low track (1A); the high track (1B) in the chain descender (32) is inclined with a lower outer side and a higher inner side; when the groove (5A) is at a high position, the groove (5A) can block the wheel pair (2) sliding down along the inclined high track (1B); at this time, the large sprocket (6A) is started to rotate, and the outer circle of the wheel (2B) will separate from the high track (1B) and fall, so that the groove (5A) supports the axle (2A).
5. A chain hoist for railway wheelsets according to claim 2, 3 or 4, characterized in that The low-level track (1A) and the high-level track (1B) include steel rails and chain tracks (1C).