A rail wheelset loading and unloading integrated transport device

Abstract

The present invention provides a rail-based wheelset loading and unloading integrated transport device, comprising: a vehicle frame serving as a rigid support platform for various mechanisms and systems; a wheelset clamping and lifting mechanism for clamping and lifting the wheelset, enabling connection between the device and the wheelset; a running system comprising a power supply system, a power system, and a crawling system. The power supply system provides electricity, the power system provides power to the operating components of the wheelset clamping and lifting mechanism, and the crawling system drives the vehicle frame carrying the wheelset on the ground; and a central control system for controlling the operation of the wheelset clamping and lifting mechanism and the running system. The wheelset clamping and lifting mechanism, running system, and central control system are all mounted on the vehicle frame. The present invention has a rational structural layout, can achieve integrated wheelset loading and unloading and automated transportation, as well as stable and safe operations, reducing transportation costs.

Description

Technical Field

[0001] The present invention relates to the technical field of transportation equipment for rail vehicle wheel set components, and in particular to a rail wheel set loading and unloading integrated transportation device. Background Art

[0002] After the production of rail vehicle wheelsets is completed, they need to be transported to a designated area for bogie assembly.

[0003] The current solution is to use an overhead crane (in conjunction with a dedicated lifting device) to lift the wheelset components onto a transport vehicle or truck. The transport vehicle or truck then transports the wheelset components to their destination, where the overhead crane then lifts the wheelset to the designated location. Another approach is to use an overhead crane to lift the wheelset components onto auxiliary tooling, which is then lifted or towed by a forklift or tractor. After transporting the wheelset components to their destination, the overhead crane then lifts them to the designated location.

[0004] The above methods of transporting wheelset components all have problems such as complicated transfer procedures, high requirements on the skills of relevant personnel, high transportation costs, and high safety and quality risks. Summary of the Invention

[0005] The main technical problem solved by the present invention is to provide a rail wheelset loading and unloading integrated transportation device with a reasonable structural layout, which can realize wheelset loading and unloading integration and automated transportation, as well as stable and safe operation and reduce transportation costs.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A rail wheel set loading and unloading integrated transportation device, comprising:

[0008] The vehicle frame serves as a rigid support platform for various mechanisms and systems;

[0009] The wheelset clamping and lifting mechanism is used to clamp and lift the wheelset, and connect the device to the wheelset;

[0010] The running system includes a power supply system, a power system, and a crawling system. The power supply system is used to provide electricity. The power system is used to provide power to the operating components of the wheelset clamping and lifting mechanism. The crawling system is used to drive the vehicle frame carrying the wheelset to move on the ground.

[0011] Central control system, used to control the wheelset clamping and lifting mechanism and the running system;

[0012] The wheelset clamping and lifting mechanism, the running system and the central control system are all installed on the vehicle frame.

[0013] Furthermore, the vehicle frame is overall H-shaped, consisting of side beams on both sides and a middle beam, and the wheelset clamping and lifting mechanisms are in two groups, which are installed on both sides of the middle beam in an axially symmetrical manner.

[0014] Furthermore, the vehicle frame is composed of a frame and a roof, both of which are H-shaped structures. The frame is a box-shaped structure with an open top, and the roof is a plate-shaped structure. The roof is installed on the frame.

[0015] Furthermore, the wheelset clamping and lifting mechanism includes a wheelset bracket, a clamping mechanism and a lifting mechanism. The wheelset bracket is used to support the wheelset, the clamping mechanism is used to clamp the wheelset from both sides of the tread, and the lifting mechanism is used to lift the wheelset bracket.

[0016] Furthermore, the wheelset bracket includes a crossbeam, a supporting seat and a lower support, and the crossbeam, supporting seat and lower support are all arranged parallel to the axle, the jacking mechanism is two groups connected to the two ends of the crossbeam, the jacking mechanism is connected to the power system, the lower support is fixedly connected to one side of the crossbeam, the supporting seat has a supporting part extending above the crossbeam, the jacking mechanism drives the crossbeam, supporting seat and lower support to rise and fall synchronously, the clamping mechanism can be telescopically installed on the supporting seat, and the lower support has a tread supporting part and / or an axle box supporting part and / or a gear box supporting part.

[0017] Furthermore, the main body of the lower support is an L-shaped structure, the horizontal part of the main body is a flat plate structure and extends to the outside of the vehicle frame, and the vertical part of the main body is a box structure. A plurality of upwardly protruding first mounting seats are provided on the vertical part of the lower support, and the first mounting seats are fixedly connected to the crossbeam.

[0018] Furthermore, the tread supporting portion is composed of two first side plates and a plurality of rotatable rollers installed between the two first side plates. The plurality of rollers are arranged from top to bottom, and the outer sides of the plurality of rollers form an arc surface that matches the wheel tread after being arranged.

[0019] Furthermore, the axle box supporting portion and the gear box supporting portion both adopt a box structure that is an overall triangle, and are composed of two second side plates and an arc-shaped plate installed between the two second side plates.

[0020] Furthermore, a slide is provided below each of the two ends of the supporting seat, and a sliding beam is slidably connected in the slide. The clamping mechanism is fixedly installed on the sliding beam. The supporting seat and the sliding beam are connected by a third hydraulic mechanism. The third hydraulic mechanism drives the sliding beam to move forward and backward, and the third hydraulic mechanism is connected to the power system.

[0021] Furthermore, the sliding beams at both ends of the supporting seat are connected as a whole at one end away from the clamping mechanism to form a U-shaped sliding beam.

[0022] Furthermore, the crossbeam adopts a hollow box-shaped structure, the middle section of the crossbeam is concave downward, and the overall structure is in the shape of an inverted "X".

[0023] Furthermore, the clamping mechanism is composed of two groups to clamp two wheels respectively. The clamping mechanism includes a clamping arm, a tread pressure seat, a first hydraulic mechanism and a second hydraulic mechanism. The clamping arm can be rotatably connected to the wheelset bracket in a horizontal plane. The first hydraulic mechanism is connected to the clamping arm to drive the clamping arm to extend and contract. When extending, the clamping arm avoids the wheelset from entering and exiting the space. When contracting, the clamping arm is clamped on the wheel tread from the outside. The second hydraulic mechanism is rotatably connected to the tread pressure seat to drive the tread pressure seat to extend toward the wheel tread and adaptively press on the wheel tread or retract from the wheel tread. The first hydraulic mechanism and the second hydraulic mechanism are both connected to the power system.

[0024] Furthermore, the arm is composed of a connecting part and a clamping part, one end of the connecting part is rotatably connected to the wheelset bracket, and the clamping part extends perpendicular to the connecting part toward the wheel tread. The clamping part is composed of two third side plates and a plurality of rotatable rollers installed between the two third side plates. The plurality of rollers are arranged from top to bottom, and after the plurality of rollers are arranged, the outer sides form an arc surface that matches the wheel tread.

[0025] Furthermore, the running system also includes a safety system, which includes safety warning lights, strobe lights, emergency brake switches, anti-collision switches, turn signals and driving lights. The safety system is connected to the central control system.

[0026] In summary, the integrated rail wheel set loading and unloading transport device provided by the present invention has the following beneficial effects compared with the prior art:

[0027] (1) The overall structure of the device is reasonable, which can realize the integrated loading and unloading of wheelsets and automated transportation. It solves the problems of complicated procedures, high personnel skill requirements, high safety and quality risks, and high transportation costs in the transportation process of rail wheelsets, and realizes stable and safe operation.

[0028] (2) The device adopts an integrated loading and unloading transportation design, which integrates the loading and unloading functions of the overhead crane and the transportation functions of the transport vehicle, simplifies the transportation process of rail wheel set components, reduces special transportation expenses, and lowers transportation costs.

[0029] (3) The clamping position of the device is the wheelset tread, which can realize the integrated loading and unloading transportation of rail wheelsets of different sizes and models under specific track gauges (such as standard gauge and wide gauge), and has a wide range of applications.

[0030] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, as part of this disclosure, are intended to provide a further understanding of the disclosure. The exemplary embodiments of the disclosure and their descriptions are intended to explain the disclosure and do not constitute undue limitations thereon. Obviously, the drawings described below are merely examples, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0032] In the attached figure:

[0033] Figure 1 It is a schematic structural diagram of the transport device of the present invention;

[0034] Figure 2 It is a schematic diagram of the frame structure of the present invention;

[0035] Figure 3 is a bottom view of the frame structure of the present invention;

[0036] Figure 4 2. It is a schematic diagram of the roof structure of the present invention;

[0037] Figure 5 Schematic diagram of the transport device structure of the present invention (without the roof);

[0038] Figure 6 This is a schematic diagram of the wheelset bracket structure of the present invention Figure 1 ;

[0039] Figure 7 This is a schematic diagram of the wheelset bracket structure of the present invention Figure 2 ;

[0040] Figure 8 This is a schematic diagram of the lower support structure of the wheelset bracket of the present invention;

[0041] Figure 9 This is a schematic diagram of the wheelset bracket support structure of the present invention Figure 1 ;

[0042] Figure 10 This is a schematic diagram of the wheelset bracket support structure of the present invention Figure 2 ;

[0043] Figure 11 This is a schematic diagram of the wheelset bracket sliding beam structure of the present invention;

[0044] Figure 12 This is a partial enlarged view of the wheel tread support portion of the wheelset of the present invention;

[0045] Figure 13 It is a structural schematic diagram of the left tread pressure seat of the present invention.

[0046] In the figure: Figures 1 to 13 As shown, the vehicle frame 10, the side beam 11, the middle beam 12, the frame 13, the roof 14, the reinforcing rib 15, the heat dissipation hole 16, the steering wheel mounting seat 17, and the hydraulic cylinder mounting seat 18;

[0047] Wheelset clamping and lifting mechanism 20, wheelset bracket 21, crossbeam 211, lower support 212, horizontal portion 2121, vertical portion 2122, reinforcing rib plate 2123, supporting seat 213, supporting portion 2131, slideway 2132, auxiliary support rod 214, hinge point 2141, hinge point 2142, first mounting seat 215, tread supporting portion 216, roller 2161, axle box supporting portion 217, curved plate 2171, gear box supporting portion 218, sliding beam 219, hinge seat 2191;

[0048] Clamping mechanism 22, clasping arm 221, connecting portion 2211, clasping portion 2212, third side plate 22121, roller 22122, tread pressing seat 222, curved surface 2221, hinged seat 2222, first hydraulic mechanism 223, second hydraulic mechanism 224, third hydraulic mechanism 225;

[0049] Lifting mechanism 23, fourth hydraulic mechanism 231;

[0050] Travel system 30, power supply system 31, power switch 311, charging port 312, battery pack 313, power management system 314, crawling system 32, universal steering wheel 321, power system 33, safety system 34, safety warning light 341, strobe light 342, emergency brake switch 343, anti-collision switch 344, turn signal 345, driving light 346;

[0051] Central control system 40, motion control system 41, wheel holding control system 42, information display system 43, transport device status display screen 431, wheelset information display screen 432.

[0052] It should be noted that the drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0054] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0055] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0056] like Figures 1 to 4 As shown, the present invention provides a rail wheelset loading and unloading integrated transport device, which is mainly used to transport wheelsets from a storage station to a bogie assembly station. The wheelset includes wheels, axles, axle boxes, and gear boxes, but of course, it can also include only wheels and axles as needed.

[0057] The transport device mainly includes a vehicle frame 10, a wheelset clamping and lifting mechanism 20, a running system 30 and a central control system 40. Among them, the vehicle frame 10 serves as the main supporting component and a rigid support platform for various mechanisms and systems. The wheelset clamping and lifting mechanism 20, the running system 30 and the central control system 40 are all installed on the vehicle frame 10. The wheelset clamping and lifting mechanism 20 is used to achieve the clamping and lifting of the wheelset and to achieve the connection between the device and the wheelset. The running system 30 includes a power supply system 31, a crawling system 32 and a power system 33. The power supply system 31 is used to provide electricity to the various systems and mechanisms of the device. The power system 33 is used to provide power to the moving parts of the wheelset clamping and lifting mechanism 20. The crawling system 32 is used to drive the vehicle frame 10 carrying the wheelset to move on the ground, including linear motion and steering motion. The central control system 40 is used to control the movement of the wheelset clamping and lifting mechanism 20 and the running system 30.

[0058] Specifically, if Figures 1 to 5As shown, in this embodiment, the vehicle frame 10 preferably has an overall H-shaped structure, consisting of side beams 11 on both sides and an intermediate beam 12 in the middle. The wheelset clamping and lifting mechanisms 20 include two groups, which are distributed in a centrally symmetrical manner on both sides of the intermediate beam 12 and are used to support, clamp, and lift the two wheelsets. This means that two wheelsets can be transported simultaneously using one transport device, meeting the assembly requirements of two wheelsets on a bogie and resolving the problem of matching platforms during wheelset transportation. Furthermore, the two wheelset clamping and lifting mechanisms 20 adopt a centrally symmetrical design, so that when the rail wheelsets are transported, the gearboxes are in a centrally symmetrical position, and the center of gravity of the vehicle coincides with the center, ensuring the stability of the device during transportation.

[0059] In this embodiment, the vehicle frame 10 is further preferably composed of a frame 13 and a roof 14, both of which are H-shaped. The frame 13 is a box-shaped structure with an open top, constructed from multiple welded metal plates, to facilitate the installation of other components. The roof 14 is a plate-shaped structure fixedly mounted above the frame 13 to cover the box-shaped structure of the frame 13, forming a complete outer shell for the vehicle frame 10 and protecting the components within the frame 13. To enhance the overall structural strength of the frame 13, a roughly triangular reinforcing rib 15 is welded to the junction between the middle beam 12 and the side beam 11 of the frame 13. The reinforcing rib 15 is welded to the top of the junction. All control components in this device are mounted within the frame 13. To ensure good heat dissipation from the control components, at least one heat dissipation hole 16 is provided on the bottom plate of the frame 13.

[0060] like Figure 1 and Figure 5 As shown, the structures of the two sets of wheelset holding and lifting mechanisms 2 are exactly the same, and they are respectively installed in the spaces on both sides of the middle beam 12. The following only takes one set of wheelset holding and lifting mechanisms 2 as an example for detailed description.

[0061] like Figure 1 、 Figure 5 、 Figure 6 and Figure 7 As shown, the wheelset clamping and lifting mechanism 20 includes a wheelset bracket 21, a clamping mechanism 22, and a jacking mechanism 23. The wheelset bracket 21 is used to support the wheelset, the clamping mechanism 22 is used to clamp the wheels from both sides, and the jacking mechanism 23 is used to raise and lower the wheelset bracket 21 to connect with the wheelset in the storage position and to detach it after transporting it to the assembly station.

[0062] In this embodiment, the wheelset bracket 21 includes a crossbeam 211, a lower support 212 and a supporting seat 213. The crossbeam 211, the lower support 212 and the supporting seat 213 are all arranged parallel to the axle, that is, parallel to the middle beam 12 of the vehicle frame 10. The crossbeam 211, the lower support 212 and the supporting seat 213 are installed in the space surrounded by the side beams 11 on both sides and the middle beam 12.

[0063] Among them, there are two groups of jacking mechanisms 23, and the two ends of the beam 211 are respectively connected to the two groups of jacking mechanisms 23. The jacking mechanisms 23 are connected to the power system 33. The jacking mechanisms 23 drive the beam 211, the lower support 212 and the supporting seat 213 to rise and fall synchronously.

[0064] In order to improve the structural strength of the beam 211, it is preferred in this embodiment that the beam 211 adopts a hollow box-shaped structure, which can meet the strength requirements and help reduce weight. Furthermore, the middle section of the beam 211 is recessed downward, and the overall structure is in the shape of an inverted "X", which can avoid other components installed around the beam 211 and is also beneficial to improving the overall structural strength of the beam 211 and improving its load-bearing capacity.

[0065] like Figure 7 and Figure 8 As shown, the main body of the lower support 212 is arranged parallel to the crossbeam 211 and fixed to one side of the crossbeam 211. The lower support 212 serves to support the wheelset, axle box, and gear box. More preferably, the main body of the lower support 212 is L-shaped, with the horizontal portion 2121 of the main body extending outward from the center beam 12 of the vehicle frame 1. The main body of the lower support 212 is provided with a plurality of upwardly protruding first mounting seats 215. The first mounting seats 215 are welded to the vertical portions 2122 of the main body of the lower support 212. The first mounting seats 215 are fixedly connected to the crossbeam 211 by riveting, and the first mounting seats 215 are connected to the back side of the crossbeam 211 (i.e., the side facing the center beam 12).

[0066] In order to improve the overall structural strength of the lower support 212 and facilitate docking with the wheel, the horizontal part 2121 of the lower support 212 body adopts a flat plate structure, and the vertical part 2122 of the lower support 212 body adopts a hollow box structure with multiple parallel reinforcing ribs 2123 arranged in the middle, which can ensure strength and help reduce weight.

[0067] like Figure 6 and Figure 8As shown, the horizontal portion 2121 of the lower support 212 is provided with a tread support portion 216, an axlebox support portion 217, and a gearbox support portion 218 for supporting the wheel, axlebox, and gearbox. The surfaces of the tread support portion 216, axlebox support portion 217, and gearbox support portion 218 that contact the wheel tread, axlebox, and gearbox housing preferably employ a curved surface structure, with varying curvatures selected depending on the supported area to effectively prevent the axlebox / gearbox from rotating during transport. Furthermore, the use of a curved surface structure facilitates fully utilizing the gravity of the gearbox and axlebox during wheel unloading, driving the wheelset and related components to automatically slide out of the lower support 212. To facilitate docking with the wheel, the outermost bottom ends of the tread support portion 216, axlebox support portion 217, and gearbox support portion 218 are aligned with the outer edge of the horizontal portion 2121 of the lower support 212.

[0068] The tread support portion 216 for supporting the wheel is composed of two first side plates (not shown) and a plurality of rotatable rollers 2161 arranged from top to bottom, mounted between the two first side plates. The plurality of rollers 2161 are arranged from top to bottom, and after the plurality of rollers 2161 are arranged, the outer sides form an arc surface that matches the wheel tread. In this embodiment, the rollers 2161 are preferably rubber rollers. During the wheel holding and releasing process, rolling friction is used instead of sliding friction, which can enhance the smoothness of the movement and also help avoid scratching the wheel tread. In addition, the tread support portion 216 can also be designed as a structure with adjustable position, slidably connected to the main body of the lower support 212 via a sliding structure. After sliding into place, it can be fixed with bolts, allowing the transport device to transport wheelsets with a wide track gauge.

[0069] Axlebox support portion 217 utilizes an overall triangular box structure, consisting of two second side panels (not shown) and a curved plate 2171 mounted between the two second side panels. The structure of gearbox support portion 218 is identical to that of axlebox support portion 217, with the only difference being the width of the supporting portion, where gearbox support portion 218 is wider than axlebox support portion 217. The curvature of curved plate 2171 matches the curvature of the supported portion.

[0070] The axlebox support 217 and gearbox support 218 are provided with weight-reducing holes on the second side panels and curved panels 2171 that enclose the housing. The axlebox support 217 and gearbox support 218 can be directly welded to the main body of the lower support 212 or secured with bolts, facilitating the replacement of support sections with different curvatures based on the size and weight of the vehicle's gearbox and axlebox. Alternatively, the axlebox support 217 and gearbox support 218 can be connected to the main body of the lower support 212 via a sliding structure, slid into place, and secured with bolts to facilitate adjustment of the support position for wheelsets corresponding to different track gauges.

[0071] like Figure 9 and Figure 10 As shown, the support seat 213 is arranged parallel to the crossbeam 211. The top of the support seat 213 has a support portion 2131 extending above the crossbeam 211. After installation, the support portion 2131 is placed above the crossbeam 211. It can also be fixed to the crossbeam 211 by bolts. When the crossbeam 211 is raised, the support seat 213 can be lifted together. The support seat 213 is vertically installed above the lower support 212.

[0072] like Figure 1 、 Figure 6 、 Figure 7 、 Figure 9 and Figure 10 As shown, the back of the support base 213 is hingedly connected to the center beam 12 of the vehicle frame 10 via multiple auxiliary support rods 214 that pass through the support base 213. Corresponding through holes (not shown) are provided on the support base 213. In this embodiment, the support base 213 is hingedly connected to the center beam 12 via four auxiliary support rods 214, two at the upper end and two at the lower end, to ensure the load-bearing capacity of the support base 213. One end of the auxiliary support rod 214 is connected to the support base 213 via a hinge point 2141, and the other end of the auxiliary support rod 214 is connected to the vehicle frame 1 via a hinge point 2142. When the lifting mechanism 23 drives the crossbeam 211 to rise and fall, the supporting seat 213 also rises and falls accordingly, and the auxiliary support rod 214 adaptively rotates in the vertical direction around the hinge point 2141 and the hinge point 2142 to ensure that the supporting seat 213 is always in a vertical state, thereby ensuring that the wheelset bracket 21 is in an overall horizontal state during loading, unloading and transportation.

[0073] The clamping mechanism 22 can be mounted on the supporting seat 213 to be telescopically extended forward and backward. In this embodiment, preferably, slideways 2132 are respectively provided below the two ends of the supporting seat 213. The slideways 2132 are extended in a direction parallel to the side beam 11. A sliding beam 219 is slidably connected in each slideway 2132. The slideway 2132 preferably adopts a mouth-shaped slideway 2132, and the sliding beam 219 also preferably adopts a mouth-shaped beam. The clamping mechanism 22 is fixedly mounted on the sliding beam 219 and fixedly mounted on one end of the sliding beam 219. When the clamping mechanism 22 is in action, the sliding beam 219 cooperates with the slideway 2132 to play a guiding role. The supporting seat 213 also plays a role in supporting the sliding beam 219. As Figure 10 As shown, in this embodiment, preferably, the sliding beams 219 on both sides are connected into one body at one end away from the clamping mechanism 22, and the overall structure is a U-shaped sliding beam.

[0074] like Figure 6 、 Figure 7 and Figure 12As shown, in this embodiment, the clamping mechanism 22 includes two groups, which are used to clamp two wheels on one axle respectively. The two groups of clamping mechanisms 22 have the same structure and are respectively arranged on both sides of the lower support 212.

[0075] Specifically, the clasping mechanism 22 includes two sets of clasping arms 221, two sets of tread pressure seats 222, two sets of first hydraulic mechanisms 223, and two sets of second hydraulic mechanisms 224, all of which are symmetrically arranged about the transverse centerline of the vehicle frame 10. The clasping arms 221 are rotatably connected to one end of the sliding beam 219 in the horizontal plane. The first hydraulic mechanism 223 is connected to the clasping arms 221, driving them to extend and retract. When extended, the clasping arms 221 avoid the wheelset from entering or exiting the space, and when retracted, the clasping arms 221 clamp onto the wheel tread from the outside. The second hydraulic mechanism 224 is rotatably connected to the tread pressure seats 222, driving the tread pressure seats 222 to extend toward the wheel tread, adaptively pressing against the wheel tread, or retract and disengage from the wheel tread. Both the first and second hydraulic mechanisms 223, 224 are connected to the power system.

[0076] Specifically, one end of the arm 221 is hinged to the end of the sliding beam 219, and the arm 221 can rotate in a horizontal plane relative to the sliding beam 219. The hydraulic cylinder of the first hydraulic mechanism 223 is fixed to the sliding beam 219, and the extension rod of the first hydraulic mechanism 223 is connected to the arm 221. When the extension rod of the first hydraulic mechanism 223 is extended, it drives the arm 221 to rotate and extend outward, thereby avoiding the entry and exit space of the wheel before the wheel is gripped. When the extension rod of the first hydraulic mechanism 223 is retracted, it drives the arm 221 to rotate and retract inward, thereby gripping the wheel from the outside. The inside of the wheel is gripped by the tread support portion 216 and the tread pressure seat 222 on the lower support 212.

[0077] like Figure 11 and Figure 12 As shown, in this embodiment, the arm 221 preferably consists of two parts: a connecting portion 2211 hingedly connected to the sliding beam 219, and a clamping portion 2212 for clamping the wheel tread. One end of the connecting portion 2211 is hingedly connected to the end of the sliding beam 219, and an articulated seat 2191 is provided at the end of the sliding beam 219. The connecting portion 2211 is welded together from two parallel connecting plates and a plurality of vertical risers (not shown) in the middle. This helps reduce weight and improves the overall structural strength of the connecting portion 2211. The clamping portion 2212 extends perpendicular to the connecting portion 2211 toward the wheel tread. The clamping portion 2212 has the same structure as the tread supporting portion 216, and is composed of two third side plates 22121 and a plurality of rollers 22122 arranged from top to bottom between the two side plates. The plurality of rollers are arranged from top to bottom, and the outer sides of the plurality of rollers after being arranged form an arc surface that matches the wheel tread. The rollers are preferably rubber rollers.

[0078] like Figure 6 、 Figure 7 and Figure 13 As shown, the tread pressure seat 222 is located at the top of the support seat 213. One end of the hydraulic cylinder of the second hydraulic mechanism 224 is hinged to the middle beam 12. The extension rod of the second hydraulic mechanism 224 is hinged to the tread pressure seat 222. When the extension rod of the second hydraulic mechanism 224 is extended, the tread pressure seat 222 is pressed against the wheel tread to clamp the wheel, thereby pressing the wheelset and preventing the wheelset from shaking during transportation. When the extension rod of the second hydraulic mechanism 224 is retracted, the tread pressure seat 222 is disengaged from the wheel tread, allowing the wheel to be released. The tread pressure seat 222 has a curved surface 2221 that matches the wheel tread. It also has an articulated seat 2222, which is hinged to the end of the extension rod of the second hydraulic mechanism 224. A rubber pad is used at the contact point between the tread pressure seat 222 and the tread to prevent scratches on the tread.

[0079] like Figure 7 and Figure 12 As shown, the support seat 213 and the sliding beam 219 are connected via a third hydraulic mechanism 225. The third hydraulic mechanism 225 is used to drive the arm 221 to move forward and backward along the side beam 11 of the vehicle frame 1. The third hydraulic mechanism 225 is connected to the power system 33. The hydraulic cylinder of the third hydraulic mechanism 225 is fixed to the slideway 2132 of the support seat 213. The extension rod of the third hydraulic mechanism 225 is connected to the sliding beam 219. When the extension rod of the third hydraulic mechanism 225 is extended, it drives the sliding beam 219 and the arm 221 to move outward. When the extension rod of the third hydraulic mechanism 225 is retracted, it drives the sliding beam 219 and the arm 221 to move forward and inward, cooperating with the arm 221 to complete the wheel holding and releasing actions.

[0080] Furthermore, a locking mechanism (not shown in the figure) can be used at the connection between the arm 221 and the sliding beam 219. The locking mechanism can adopt a hydraulic lifting column or a two-way ratchet mechanism, so that when the arm 221 reaches the specified position, the arm 221 and the sliding beam 219 are fixed, thereby ensuring the clamping force when holding the wheel and ensuring the stability of the wheel during transportation.

[0081] In this embodiment, Figure 6 and Figure 7 As shown, the lifting mechanism 23 adopts a fourth hydraulic mechanism 231, and the bottom of the hydraulic cylinder of the fourth hydraulic mechanism 231 is fixed on the side beam 11 of the vehicle frame 1, as shown in FIG. Figure 2 As shown, four hydraulic cylinder mounting seats 18 are correspondingly provided on the two side beams 11. The top of the extension rod of the fourth hydraulic mechanism 231 is fixed on the cross beam 211. Two groups of fourth hydraulic mechanisms 231 are respectively provided at both ends of the cross beam 211. When the extension rods of the two groups of fourth hydraulic mechanisms 231 are synchronously extended and retracted, the cross beam 211 is driven to rise and fall, thereby driving the synchronous rise and fall of all components in the entire wheelset bracket.

[0082] like Figure 5 As shown, the power system 33 that provides power to the first, second, third, and fourth hydraulic mechanisms 223, 224, 225, and 231 is integrated within the center beam 12 of the vehicle frame 1 and secured to the vehicle frame 13 via bolts. In this embodiment, the power system 33 preferably utilizes a hydraulic pump system. Furthermore, the hydraulic rods of each hydraulic mechanism are equipped with limit sensors that control the limit positions of the respective hydraulic rods, ensuring that each hydraulic rod can move to a specified position. Alternatively, the first, second, third, and fourth hydraulic mechanisms 223, 224, 225, and 231 can utilize electric push rods powered by the device's onboard power supply system.

[0083] The wheelset bracket 21 adopts the principle of the wheel holding mechanism, and completes the wheel holding / releasing, clamping / relaxing, lifting / lowering and other actions of the rail wheelset under the action of the first hydraulic mechanism 223, the second hydraulic mechanism 224, the third hydraulic mechanism 225 and the fourth hydraulic mechanism 231, thereby realizing the loading and unloading functions of the rail wheelset components.

[0084] like Figure 1 and Figure 5 As shown, the power supply system 31 includes a power switch 311, a charging port 312, a battery pack 313, and a power management system 314. The power switch 311 and the charging port 312 are two groups, which are respectively arranged on the outside of the two side beams 11 of the vehicle frame 1 and are placed symmetrically with the center. Of course, the charging port 312 can also be installed under the frame 13. There are two groups of battery packs 313, which are respectively installed in the two side beams 11 of the vehicle frame 1 and are responsible for supplying power to the various subsystems of the transportation device. The power management system 314 also consists of two groups, which are respectively installed in the two side beams 11 of the vehicle frame 1. The power switch 311, charging port 312 and battery pack 313 on the same side are connected to the power management system 314, which is responsible for managing the power supply and output control of the battery pack, and is responsible for the on / off and power replenishment of the entire vehicle power supply system.

[0085] The battery pack 313 is composed of multiple batteries connected in a cascade manner to obtain the voltage required by the transport device. The two battery packs 313 are placed in the battery pack support frames (not shown in the figure) on both sides of the frame 13, and are connected to other power-consuming subsystems to power the various subsystems of the transport device.

[0086] like Figure 1 and Figure 3As shown, the crawling system 32 includes four electrically driven universal steering wheels 321 capable of 360° or ±180° steering. These wheels are connected to the vehicle frame 13 and located at the four corners below the vehicle frame 13. Each wheel is independently mounted and has no mechanical connection to the other. Steering wheel mounting bases 17 are located at the four corners of the vehicle frame 13. The angles of the axis of the four universal steering wheels 321 relative to the centerline of the vehicle frame 1 can be adjusted independently or in combination to change the steering direction and turning radius of the transport device and enable omnidirectional travel. Of course, the number of universal steering wheels 321 can be increased in pairs depending on the carrying capacity of the transport device.

[0087] like Figure 1 As shown, the running system 30 also includes a safety system 34, which includes a safety warning light 341, a strobe light 342, an emergency brake switch 343, an anti-collision switch 344, a turn signal 345, and a driving light 346. The safety system 34 is connected to the central control system 40 to ensure the safety of the transport device during the loading, unloading, and transportation of rail wheel components.

[0088] The safety warning light 341 and strobe light 342 are located at the center of the centerline of the upper surface of the roof 14, providing a warning to nearby personnel during operation. Emergency brake switches 343 are located symmetrically on either side of the roof 14, providing an emergency stop in the event of a loss of control or dangerous conditions. Anti-collision switches 344 are located at the eight corners of the outer side of the H-shaped frame 13. When the transport unit comes within close proximity of an obstacle, the anti-collision switches 344 sense the obstacle and restrict the transport unit's movement. These switches can be implemented using either radar or laser ranging. Turn signals 345 are located on four planes on the outer side of the frame 13, front and rear, to alert nearby vehicles and pedestrians of the transport unit's impending turn direction. Driving lights 346 are located above the wheelset bracket 20 support, facilitating loading and unloading operations at night or in poor lighting conditions. During transport, these lights provide visibility to nearby personnel and vehicles.

[0089] like Figure 1 and Figure 5 As shown, the central control system 40 includes a motion control system 41, a wheel holding control system 42, and an information display system 43. The motion control system 41 and the wheel holding control system 42 are respectively fixed to the frame 13 on both sides of the power system 33 by bolts, and are responsible for controlling and providing feedback to the various mechanisms of the wheelset bracket 21, the power system 33, the running system 30, and the safety system 34.

[0090] The motion control system 41 is bolted to the frame 13 on the left / right side of the power system 33. It is interconnected with the crawling system 32, power system 33, safety system 34, and information display system 43. It is responsible for automatic control of the transporter's travel and steering, device status monitoring, trajectory tracking, and fault alarms. The wheel-holding control system 42 is bolted to the frame 13 on the right / left side of the power system 33. It serves as the main control and monitoring unit for the power system 33 and is interconnected with the hydraulic pump system and the transporter status display system. It is responsible for controlling the various actuating mechanisms of the transporter's wheelset bracket.

[0091] The information display system 43 includes a transport device status display screen 431 and a wheelset information display screen 432, which are respectively located on both sides of the outside of the frame 13 and above the roof 14, providing operators and production personnel with the transport device status information and production information of rail wheelset components.

[0092] The transporter status display screens 431 are adhesively attached to both sides of the vehicle frame 13 and connected to the central control system 40. They provide the transporter operator with vehicle status information, such as battery level information, pressure in each hydraulic cylinder, charge and discharge status, and maximum round-trip transport times. The wheelset information display screen 432 is adhesively attached to the roof 14 and connected to the central control system 40. It provides production personnel transporting and receiving rail wheelset components with information such as wheelset number, wheelset model, wheelset production date, production batch, and production team.

[0093] The central control system 40 also includes a communication module that can realize wireless information communication, a wireless remote control module that can realize remote control of the transportation device, an active tracking module that can realize autonomous tracking movement of the transportation device, and an automatic docking module that can automatically connect the transportation device and rail wheel components with one-button operation.

[0094] The steps for using the transport device are as follows:

[0095] 1. Initial state

[0096] The transport device is stationary, the two sets of fourth hydraulic mechanisms 231 on the wheelset bracket 21 are in a raised state, raising the crossbeam 211, the supporting seat 213 and the lower support 212, and the first hydraulic mechanism 223, the second hydraulic mechanism 224 and the third hydraulic mechanism 225 are in a retracted state.

[0097] 2. Loading of rail wheel set components

[0098] 21. Preparation for loading.

[0099] The transport device first moves (translationally, or travels in a straight line) to a position where the tread support portion 216 on the lower support 212 is aligned with the rail / wheelset tread, and then the two sets of fourth hydraulic mechanisms 231 on the side wheelset bracket 21 begin to contract, and the wheelset bracket 21 descends to a specified height; then the first hydraulic mechanism 223 and the third hydraulic mechanism 225 extend, the sliding beam 219 extends forward, and the arm 221 is in an extended state, ready to approach the rail wheelset components.

[0100] 22. Wheel-to-wheel docking.

[0101] The transport device moves straight toward the wheelset in a loading-ready state until the wheelset transport auxiliary tool contacts the lower support 212 of the side wheelset bracket 21.

[0102] 23. Wheelset clamping.

[0103] First, the first hydraulic mechanism 223 operates and retracts, causing the arm 221 to rotate to a 90° angle with the slide beam 219. Then, the third hydraulic mechanism 225 operates and retracts, allowing the arm 221 to push the wheelset to the clamping position and clamp it. The arm 221 and the tread support 216 of the lower support 212 contact and clamp the wheel tread. The axlebox auxiliary transport fixture / gearbox auxiliary transport fixture slides onto the axlebox support 217 and gearbox support 218 of the lower support 212. Subsequently, the second hydraulic mechanism 224 extends, pressing the tread press seat 222 against the wheel tread.

[0104] 24. Wheel set lifting.

[0105] After the wheelset bracket 21 completes the clamping action, the fourth hydraulic mechanism 231 is activated and raised, and the wheelset bracket 21 clamps the wheelset and rises under the action of the fourth hydraulic mechanism 231, and stops after rising to the specified position. At this time, the wheelset loading action is completed.

[0106] 3. Transportation of rail wheel set components

[0107] After the wheelset is loaded, the transport device begins transport via a wireless remote control system or an automatic tracking system. During normal transport, the wheelset bracket 21 remains clamped by the power system 33, and the power supply system 31, crawling system 32, safety system 34, central control system 40, and information display system 43 all operate normally.

[0108] When the transport device is in automatic transport mode, if the anti-collision switch 344 senses that the transport device is close to surrounding obstacles, the motion control system 41 of the transport device will restrict the vehicle body from continuing to move forward, and issue an alarm to the surroundings, while transmitting the abnormality back to the transport scheduling system where it is located; if the transport device encounters an emergency, such as failure of the power system 33, failure of various hydraulic mechanisms, failure of the transport device, etc., it will automatically trigger emergency braking, and relevant personnel around can also manually press the emergency brake switch 343.

[0109] 4. Unloading of rail wheel set components

[0110] 41. Prepare for uninstallation.

[0111] After the transport device is moved to the designated position by wireless remote control or automatic tracking, it is manually determined whether the wheels and treads of the wheelset are accurately located in a safe position.

[0112] 42. Unloading of wheelsets.

[0113] First, the two groups of fourth hydraulic mechanisms 231 of the transport device are retracted, and the wheelset bracket 21 carrying the wheelset follows the fourth hydraulic mechanism 231 and descends to the designated position, while the wheels / treads of the wheelset are supported.

[0114] Then, the second hydraulic mechanism 224 contracts and no longer applies pressure to the wheelset.

[0115] Then, because the axlebox support portion 217 and gearbox support portion 218 of the lower support 212 have a certain curvature, the wheelset, under the action of the weight of the axlebox and gearbox themselves, will slide forward with the extension of the third hydraulic mechanism 225, causing the sliding beam 219 to leave the lower support 212. Finally, the first hydraulic mechanism 223 extends, the arm 221 is unfolded, and the transport device is ready to leave the wheelset.

[0116] 43. Stay away from the wheelset.

[0117] After the transport device completes unloading of the wheelset, the hydraulic mechanisms initially maintain their current state. The transport device then moves away from the wheelset while maintaining a safe distance. Subsequently, the hydraulic mechanisms within the transport device return to their initial state prior to loading and unloading.

[0118] When the transport device is loading / unloading two wheelsets, the loading / unloading action of one wheelset can be completed according to the above steps. Then, the transport device is adjusted to a suitable position and the loading / unloading action of the other wheelset can be completed according to the above steps.

[0119] The integrated transport device for loading and unloading rail wheel set components provided by the present invention has the following advantages:

[0120] 1. The device adopts an H-shaped vehicle frame 10, so that the transport device can transport two wheelsets at the same time, solving the problem of matching wheelsets during the transportation process.

[0121] 2. The whole vehicle of the device adopts a centrosymmetrical design. When the rail wheel set components are transported, the gearbox is in a centrosymmetrical position, and the center of gravity of the whole vehicle coincides with the center, which ensures the stability of the device during transportation.

[0122] 3. The wheelset bracket 21 of the device adopts the principle of wheel holding mechanism, and completes the actions of holding / releasing, clamping / relaxing, lifting / lowering, etc. of the rail wheel set components under the action of the hydraulic mechanism, thereby realizing the loading and unloading function of the rail wheel set components.

[0123] 4. The holding arm 221 in the wheelset bracket 21 of the device and the tread support portion 216 of the lower support 212 both adopt a rubber roller structure. During the wheel holding and releasing process, rolling friction replaces sliding friction, which can enhance the smoothness of the movement.

[0124] 5. Based on the weight differences of the gearbox and axlebox, the device features axlebox and gearbox supports 217 and 218 of varying arcs on the lower support 212 to prevent the axlebox / gearbox from rotating during transport. Furthermore, during wheel unloading, the weight of the gearbox and axlebox is fully utilized to automatically slide the wheelset and related components out of the lower support 212.

[0125] 6. The device uses an electrically driven universal steering wheel that can independently steer 360° or ±180° as the crawling system of the device, so that the transport device can achieve all-round driving, with all-round driving functions such as small radius turning and left and right translation, ensuring that the device can adjust its position in confined spaces (such as narrow roads in the factory area and aisles in the factory building).

[0126] 7. The device realizes the integrated loading and unloading transportation of rail wheel set components, solving the problems of complicated procedures, high personnel skill requirements, high safety and quality risks, and high transportation costs in the transportation process of rail wheel set components.

[0127] 8. The clamping position of the wheelset bracket 21 of the device is the wheelset tread, which can realize the integrated loading and unloading transportation of rail wheelsets of different sizes and models under specific track gauges (such as standard gauge and wide gauge), and has a wide range of applications.

[0128] 9. The device adopts an integrated loading and unloading transportation design, integrating the loading and unloading functions of the overhead crane and the transportation functions of the transport vehicle, simplifying the transfer process of rail wheel set components and reducing special transportation costs.

[0129] 10. The device adopts an intelligent control system and can be scheduled by the production line, realizing the automated transportation of rail wheel set components, reducing the communication between cross-departmental personnel, and improving the transportation efficiency of rail wheel set components.

[0130] 11. This device changes the transportation process of rail wheel set components from "lifting-transporting-lifting-lowering" to "lifting-transporting-lowering", reducing the loading and unloading actions of rail wheel set components and significantly reducing the risk of collision between rail wheel set components.

[0131] 12. The device's integrated loading and unloading transport device includes a wireless system and is equipped with a wireless remote control handle, which can be used for remote control of the transport device, greatly reducing the number of operators and lowering the skill requirements of the operators.

[0132] 13. The device also includes an active tracking module, which can use visual guidance technology to realize the autonomous tracking function of the transport device, laying a certain foundation for the automated transportation of rail wheel components in the future.

[0133] 14. This device can be widely used on cement floors, asphalt floors, stone floors, epoxy resin floors and other common hard floors. At the same time, it has a certain passability on hard floors with embedded tracks.

[0134] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A rail wheel set loading and unloading integrated transportation device, characterized in that: include: The vehicle frame serves as a rigid support platform for various mechanisms and systems; The wheelset holding and lifting mechanism is used to hold and lift the wheelset, thereby connecting the device to the wheelset. The wheelset holding and lifting mechanism includes a wheelset bracket, a holding mechanism, and a lifting mechanism. The wheelset bracket is used to support the wheelset, the holding mechanism is used to hold the wheelset from both treads, and the lifting mechanism is used to lift the wheelset bracket. The running system includes a power supply system, a power system, and a crawling system. The power supply system is used to provide electricity. The power system is used to provide power to the operating components of the wheelset clamping and lifting mechanism. The crawling system is used to drive the vehicle frame carrying the wheelset to move on the ground. Central control system, used to control the wheelset clamping and lifting mechanism and the running system; The wheelset clamping and lifting mechanism, running system and central control system are all installed on the vehicle frame; The clamping mechanism is composed of two groups to clamp two wheels respectively, and the clamping mechanism includes a clamping arm, a tread pressure seat, a first hydraulic mechanism and a second hydraulic mechanism. The clamping arm can be rotatably connected to the wheelset bracket in a horizontal plane. The first hydraulic mechanism is connected to the clamping arm to drive the clamping arm to extend and contract. When extending, the clamping arm avoids the wheelset from entering and exiting the space. When contracting, the clamping arm clamps the wheel tread from the outside. The second hydraulic mechanism is rotatably connected to the tread pressure seat to drive the tread pressure seat to extend toward the wheel tread and adaptively press on the wheel tread or retract from the wheel tread. The first hydraulic mechanism and the second hydraulic mechanism are both connected to the power system.

2. The integrated rail wheel set loading and unloading transport device according to claim 1, characterized in that: The vehicle frame is in an H-shape as a whole and consists of side beams on both sides and a middle beam. The wheelset clamping and lifting mechanisms are in two groups and are installed on both sides of the middle beam in an axially symmetrical manner.

3. The integrated rail wheel set loading and unloading transport device according to claim 2, characterized in that: The vehicle frame consists of a vehicle frame and a vehicle roof. Both the vehicle frame and the vehicle roof are H-shaped structures. The vehicle frame is a box-shaped structure with an open top, and the vehicle roof is a plate-shaped structure. The vehicle roof is installed on the vehicle frame.

4. The integrated rail wheel set loading and unloading transport device according to claim 1, characterized in that: The wheelset bracket includes a crossbeam, a supporting seat and a lower support. The crossbeam, supporting seat and lower support are all arranged parallel to the axle. The jacking mechanism is two groups connected to the two ends of the crossbeam. The jacking mechanism is connected to the power system. The lower support is fixedly connected to one side of the crossbeam. The supporting seat has a supporting part extending above the crossbeam. The jacking mechanism drives the crossbeam, supporting seat and lower support to rise and fall synchronously. The clamping mechanism can be telescopically installed on the supporting seat forward and backward. The lower support has a tread supporting part and / or an axle box supporting part and / or a gear box supporting part.

5. The integrated rail wheel set loading and unloading transport device according to claim 4, characterized in that: The main body of the lower support is an L-shaped structure, the horizontal part of the main body is a flat plate structure and extends to the outside of the vehicle frame, the vertical part of the main body is a box structure, and a plurality of upwardly protruding first mounting seats are provided on the vertical part of the lower support, and the first mounting seats are fixedly connected to the crossbeam.

6. The integrated rail wheel set loading and unloading transport device according to claim 4, characterized in that: The tread supporting portion is composed of two first side plates and a plurality of rotatable rollers installed between the two first side plates. The plurality of rollers are arranged from top to bottom. After the plurality of rollers are arranged, the outer sides form an arc surface that matches the wheel tread.

7. The integrated rail wheel set loading and unloading transport device according to claim 4, characterized in that: The axle box supporting part and the gear box supporting part both adopt a box structure that is an overall triangle and consists of two second side plates and an arc-shaped plate installed between the two second side plates.

8. The integrated rail wheel set loading and unloading transport device according to claim 4, characterized in that: A slide is provided below each end of the supporting seat, and a sliding beam is slidably connected in the slide. The clamping mechanism is fixedly installed on the sliding beam. The supporting seat and the sliding beam are connected by a third hydraulic mechanism. The third hydraulic mechanism drives the sliding beam to move forward and backward, and the third hydraulic mechanism is connected to the power system.

9. The integrated rail wheel set loading and unloading transport device according to claim 8, characterized in that: The sliding beams at both ends of the supporting seat are connected as a whole at one end away from the clamping mechanism to form a U-shaped sliding beam.

10. The integrated rail wheel set loading and unloading transport device according to claim 4, characterized in that: The crossbeam adopts a hollow box-shaped structure, the middle section of the crossbeam is concave downward, and the whole crossbeam is in an inverted "X" shape.

11. The integrated rail wheel set loading and unloading transport device according to claim 1, characterized in that: The holding arm consists of a connecting part and a clamping part. One end of the connecting part is rotatably connected to the wheelset bracket. The clamping part extends perpendicular to the connecting part toward the wheel tread. The clamping part consists of two third side plates and a plurality of rotatable rollers installed between the two third side plates. The plurality of rollers are arranged from top to bottom. After the plurality of rollers are arranged, the outer sides form an arc surface that matches the wheel tread.

12. The integrated rail wheel set loading and unloading transport device according to any one of claims 1 to 11, characterized in that: The running system also includes a safety system, which includes a safety warning light, a strobe light, an emergency brake switch, an anti-collision switch, a turn signal and a driving light. The safety system is connected to the central control system.

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