Railway maintenance trolley

Abstract

The present application provides a kind of track maintenance trolley, comprising: frame;Front wheel module, including front wheel frame and being arranged in front wheel frame front wheel pair, brake mechanism and at least one first quick release device, brake mechanism and front wheel pair brake cooperation;Rear wheel module, including rear wheel frame and being arranged in rear wheel frame rear wheel pair, drive mechanism and at least one second quick release device, drive mechanism and rear wheel pair transmission cooperation;Any one of first quick release device and second quick release device is configured to be detachably connected with frame.According to the track maintenance trolley of the present application, front wheel module and rear wheel module are detachably connected with frame by quick release device respectively, overcome the problem that the limitation of track maintenance trolley's own travel speed leads to unable to complete maintenance work in limited maintenance window period, also can solve the problem that when the weight and volume of track maintenance trolley are relatively large, it is inconvenient to carry during operation.

Description

Technical Field

[0001] This invention relates to the field of track inspection technology, and in particular to a track maintenance trolley. Background Technology

[0002] As the operating time of rail lines such as subway lines increases, it is often necessary to use subway line maintenance vehicles such as flaw detection trolleys and tunnel inspection trolleys, equipped with inspection devices, to inspect the tracks in order to ensure the safety of subway lines.

[0003] However, due to the low speed of the trolley and the limited window time for maintenance work, the trolley alone cannot complete the work on time for long-distance line inspections. In addition, the existing trolley system is heavy and inconvenient to transport. Therefore, a solution that can quickly assemble and disassemble the trolley is needed. Summary of the Invention

[0004] In view of the above problems, the present invention provides a track maintenance trolley, wherein the wheel module and the rear wheel module are detachably connected to the frame through quick-release devices, so that the track maintenance trolley can be quickly disassembled and the disassembled parts can be carried on other vehicles to quickly reach the maintenance destination for reassembly. This overcomes the problem that the maintenance work cannot be completed within the limited maintenance window due to the limited travel speed of the track maintenance trolley itself, and is easy to disassemble, assemble and transport.

[0005] This invention provides a track maintenance trolley, comprising: a frame; a front wheel module including a front wheel frame and a front wheel pair disposed on the front wheel frame, a braking mechanism, and at least one first quick-release device, the braking mechanism engaging with the front wheel pair in a braking manner; and a rear wheel module including a rear wheel frame and a rear wheel pair disposed on the rear wheel frame, a drive mechanism, and at least one second quick-release device, the drive mechanism engaging with the rear wheel pair in a transmission manner; either the first quick-release device or the second quick-release device is configured to be detachably connected to the frame.

[0006] According to the present invention, the front wheel module and the rear wheel module are detachably connected to the frame via quick-release devices, which allows the track maintenance trolley to be quickly disassembled. The disassembled parts can be carried on other vehicles to the maintenance destination for rapid assembly to complete the maintenance work. This can greatly improve work efficiency and overcome the problem that the maintenance work cannot be completed within the limited maintenance window due to the limited travel speed of the track maintenance trolley itself. It can also solve the problem that the track maintenance trolley is inconvenient to transport when it is heavy and bulky.

[0007] In some embodiments, the frame has multiple mounting holes, and either the first quick-release device or the second quick-release device includes: a limiting component having a limiting portion and a connecting portion, the connecting portion passing through the mounting hole, the limiting portion abutting against a portion of the frame located at one axial end of the mounting hole; and an anti-detachment component having a limiting mating portion and a connecting mating portion, the connecting mating portion connecting to the connecting portion, and the limiting mating portion abutting against a portion of the frame located at the other axial end of the mounting hole.

[0008] In some embodiments, the limiting component includes: a fixed seat, including a seat body and a connecting post, the seat body being fixedly connected to the corresponding front wheel frame or rear wheel frame, the connecting post being located on one side of the seat body along the thickness direction; a connecting bushing, the connecting bushing being sleeved on the connecting post and adapted to be embedded in the mounting hole, the connecting bushing and the connecting post together constituting the connecting portion, and the seat body constituting the limiting portion.

[0009] In some embodiments, the limiting component further includes a vibration damping pad, which is sleeved on the outside of the connecting post and located between the seat body and the connecting bushing.

[0010] In some embodiments, the connecting post has a connecting hole extending along its own axial direction, the connecting mating part is a plug, and the connecting mating part is threadedly engaged with the connecting hole.

[0011] In some embodiments, the front wheel frame is provided with first front mounting seats at both ends along its length direction. The first front mounting seat includes a first front mounting portion and a second front mounting portion located on both sides of the front wheel frame along its height direction. The front wheelset includes a front wheel axle and a front roller. The front roller is located at both ends of the front wheel axle along its axial direction. The front wheel axle is provided with a second front mounting seat corresponding to the first front mounting seat. The second front mounting seat is bolted to the first front mounting portion. The first quick-release device is fixedly disposed on the second front mounting portion.

[0012] In some embodiments, the braking mechanism includes: a brake handle movably disposed on the front wheel frame and extending from the upper side of the frame; a brake pedal movably disposed on the front wheel frame and extending from the upper side of the frame; a brake splitter bar disposed on one side of the front wheel frame in the longitudinal direction; a brake disc comprising a plurality of discs spaced apart on the axles of the front wheel pair; a brake caliper detachably engaged with the brake disc; and a brake cable connecting any one of the brake caliper and the brake splitter bar, the brake handle and the brake splitter bar, and the brake pedal and the brake splitter bar via the brake cable.

[0013] In some embodiments, the rear wheel frame is provided with a first rear mounting seat at both ends along its own length direction. The first rear mounting seat includes a first rear mounting part and a second rear mounting part located on both sides of the rear wheel frame along its height direction. The rear wheelset includes a rear wheel axle and a rear roller. The rear roller is provided at both ends of the rear wheel axle along its own axial direction. The rear wheel axle is provided with a second rear mounting seat corresponding to the first rear mounting seat. The second rear mounting seat is bolted to the first rear mounting part. The second quick-release device is fixedly disposed on the second rear mounting part.

[0014] In some embodiments, the rear wheel frame is further provided with a first rear connecting seat and a second rear connecting seat, the drive mechanism includes a drive member and a drive controller, the drive controller is electrically connected to the drive member, and the drive member is drively connected to the rear wheelset; the drive member is located on the first rear connecting seat, and the drive controller is located on the second rear connecting seat.

[0015] According to some embodiments of the present invention, either the front wheel frame or the rear wheel frame is provided with a plurality of weight-reducing holes, the plurality of weight-reducing holes are arranged at intervals, and the weight-reducing holes are also used for wiring; and / or, either the front wheel frame or the rear wheel frame is an alloy part. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the track maintenance trolley from one angle according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the track maintenance trolley from another angle according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the front wheel module and the rear wheel module according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the assembly of the first quick-release device and the second quick-release device with the vehicle frame according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the first quick-release device and the second quick-release device according to an embodiment of the present invention;

[0022] Figure 6This is a cross-sectional view of the first quick-release device and the second quick-release device according to an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the front wheel module according to an embodiment of the present invention;

[0024] Figure 8 This is a structural schematic diagram of the front wheel frame at one angle according to an embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of the front wheel frame from another angle according to an embodiment of the present invention;

[0026] Figure 10 This is a schematic diagram of the front wheelset according to an embodiment of the present invention;

[0027] Figure 11 This is a schematic diagram of the braking mechanism according to an embodiment of the present invention;

[0028] Figure 12 This is a schematic diagram of the rear wheel module according to an embodiment of the present invention;

[0029] Figure 13 This is a schematic diagram of the rear wheel frame according to an embodiment of the present invention;

[0030] Figure 14 This is a schematic diagram of the rear wheelset according to an embodiment of the present invention;

[0031] Figure 15 This is a partial structural schematic diagram of the drive mechanism according to an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100-Railway Maintenance Trolley;

[0034] 1-Frame; 11-Mounting holes;

[0035] 2-Front wheel module;

[0036] 21-Front wheel frame;

[0037] 211-First front mounting seat; 212-First front mounting part; 213-Second front mounting part; 214-First support connecting rib; 215-First front connecting seat; 216-Second front connecting seat; 217-Third front connecting seat;

[0038] 22-Front wheel set;

[0039] 221-Front axle; 222-Front roller; 223-Second front mounting bracket; 224-Front bearing; 225-Front bearing housing; 226-Front end cap; 227-Clamping clamp;

[0040] 23-Brake mechanism;

[0041] 231-Brake handle; 232-Brake pedal; 233-Brake cable splitter; 234-Brake disc; 235-Brake cable; 236-Brake caliper; 237-First front mating seat;

[0042] 24-encoder;

[0043] 3-Rear wheel module;

[0044] 31-Rear wheel frame; 311-First rear mounting seat; 312-First rear mounting part; 313-Second rear mounting part; 314-Second support connecting rib; 315-First rear connecting seat; 316-Second rear connecting seat; 317-Third rear connecting seat; 318-Fourth rear connecting seat;

[0045] 32 - Rear wheel set;

[0046] 321 - Rear wheel axle; 322 - Rear roller; 323 - Second rear mounting bracket; 324 - Rear bearing housing; 325 - Rear end cover; 326 - Rear bearing;

[0047] 33-Drive mechanism;

[0048] 331-Driver; 332-Drive controller; 333-First transmission gear; 334-Second transmission gear; 335-Gear cover;

[0049] 4a - First quick-release device; 4b - Second quick-release device;

[0050] 41-Fixed base; 411-Base body; 412-Connecting post; 413-Connecting hole;

[0051] 42 - Connecting bushing;

[0052] 43 - Vibration damping pad;

[0053] 44-Anti-detachment component; 441-Limiting mating part; 442-Connecting mating part;

[0054] 5-Weight reduction hole. Detailed Implementation

[0055] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0056] As the operating time of rail lines such as subway lines increases, it is often necessary to use maintenance vehicles such as flaw detection trolleys and tunnel inspection trolleys, equipped with inspection devices, to inspect the tracks and ensure the safety of the subway lines. However, due to the low speed of the trolleys and the limited window time for maintenance work, the trolleys alone cannot complete the work on time for long-distance line inspections. Furthermore, existing trolley systems are heavy and inconvenient to transport. Therefore, there is a need for a solution that allows for the rapid assembly and disassembly of the trolleys.

[0057] In view of this, the present invention provides a track maintenance trolley, wherein the front wheel module and the rear wheel module are detachably connected to the frame via quick-release devices, allowing the track maintenance trolley to be quickly disassembled and the disassembled parts to be quickly transported to the maintenance destination for reassembly to complete the maintenance work. This can greatly improve work efficiency, overcome the problem that the maintenance work cannot be completed within the limited maintenance window due to the limited travel speed of the track maintenance trolley itself, and also solve the problem that the track maintenance trolley is inconvenient to transport when it is heavy and bulky.

[0058] The following is for reference. Figures 1-15 A track maintenance trolley 100 according to an embodiment of the present invention is described.

[0059] Combination Figures 1-3 The track maintenance trolley 100 in this embodiment may include: a frame 1, a front wheel module 2 and a rear wheel module 3.

[0060] Specifically, the frame 1 can be used to carry flaw detection equipment, maintenance equipment, etc., and of course, the frame 1 can also carry other functional components.

[0061] The front wheel module 2 may include a front wheel frame 21, a front wheel pair 22, a braking mechanism 23, and at least one first quick-release device 4a. The front wheel frame 21 can be a frame structure, a plate structure, or other structures. The front wheel frame 21 provides mounting support for components such as the front wheel pair 22, the braking mechanism 23, and the first quick-release device 4a. The front wheel pair 22, the braking mechanism 23, and the first quick-release device 4a are all located on the front wheel frame 21. The first quick-release device 4a connects the front wheel frame 21 and the vehicle frame 1. The braking mechanism 23 engages with the front wheel pair 22. When the braking mechanism 23 brakes the front wheel pair 22, the front wheel pair 22 causes the rear wheel pair 32 to stop rotating, thus stopping the vehicle 100.

[0062] The rear wheel module 3 may include a rear wheel frame 31, a rear wheel pair 32, a drive mechanism 33, and at least one second quick-release device 4b. The rear wheel frame 31 can be a frame structure, a plate structure, or other structures. The rear wheel frame 31 provides mounting support for components such as the rear wheel pair 32, the drive mechanism 33, and the second quick-release device 4b. The rear wheel pair 32, drive mechanism 33, and second quick-release device 4b are all located on the rear wheel frame 31. The second quick-release device 4b connects the rear wheel frame 31 and the vehicle frame 1. The drive mechanism 33 is in transmission cooperation with the rear wheel pair 32; that is, the drive mechanism 33 can drive the rear wheel pair 32 to rotate. When the rear wheel pair 32 rotates, it drives the front wheel pair 22 to rotate, realizing the forward and backward movement of the vehicle 100.

[0063] Either the first quick-release device 4a or the second quick-release device 4b is configured to be detachably connected to the frame 1. In other words, the front wheel module 2 can be detachably connected to the frame 1 via the first quick-release device 4a, and the rear wheel module 3 can be detachably connected to the frame 1 via the second quick-release device 4b. Thus, the running system of the track maintenance trolley 100 is divided into two independent running modules, which reduces the weight of individual modules while ensuring necessary functional integration.

[0064] According to the embodiment of the present invention, the track maintenance trolley 100 has its front wheel module 2 and rear wheel module 3 detachably connected to the frame 1 via quick-release devices. This allows the track maintenance trolley 100 to be quickly disassembled, and the disassembled parts can be quickly transported to the maintenance destination by other vehicles for assembly to complete the maintenance work. This can greatly improve work efficiency and overcome the problem that the maintenance work cannot be completed within the limited maintenance window due to the limited travel speed of the track maintenance trolley 100 itself. It can also solve the problem that the track maintenance trolley 100 is inconvenient to transport when it is heavy and bulky.

[0065] In some embodiments, reference Figure 8 and Figure 13 Both the front wheel frame 21 and the rear wheel frame 31 can include an outer frame and an inner beam. The outer frame can be formed by connecting multiple side frames end to end sequentially, for example, by welding. The inner beam is connected to the inside of the outer frame. Both the outer frame and the inner beam can be used to install other components. For example, the outer frame can be formed into a square by connecting four side frames end to end sequentially. The inner beam can include at least one of a crossbeam or a longitudinal beam. The arrangement of the inner beams in the front wheel frame 21 and the rear wheel frame 31 can be the same or different. In addition, the number of crossbeams or longitudinal beams can be reasonably set as needed to better support and install other components. In this way, the front wheel frame 21 and the rear wheel frame 31 can more conveniently arrange and install other components, and the overall structure is relatively simple, easy to manufacture and assemble.

[0066] In some embodiments, combined with Figure 2 and Figure 4 The frame 1 may have multiple mounting holes 11, which may be round holes. Either the first quick-release device 4a or the second quick-release device 4b may include a limiting component and an anti-detachment component 44. The limiting component has a limiting part and a connecting part. The connecting part can pass through the mounting hole 11, and the limiting part abuts against the portion of the frame 1 located at one axial end of the mounting hole 11. The anti-detachment component 44 has a limiting mating part 441 and a connecting mating part 442. The connecting mating part 442 can connect with the connecting part, for example, by insertion or snap-fit. The limiting mating part 441 abuts against the portion of the frame 1 located at the other axial end of the mounting hole 11.

[0067] Thus, the limiting component and the anti-detachment component 44 are connected to the connecting part through the connecting mating part 442. At the same time, the limiting part of the limiting component and the limiting mating part 441 of the anti-detachment component 44 together clamp the upper and lower sides of the frame 1, thereby achieving the connection with the frame 1. The anti-detachment component 44 can play a safe anti-detachment role. Furthermore, the overall structure of the first quick-release device 4a and the second quick-release device 4b is relatively simple, enabling the rapid assembly and disassembly of the track maintenance trolley 100.

[0068] In some embodiments, reference Figure 2 and Figure 3 There can be two first quick-release devices 4a, distributed at both ends of the front wheel frame 21 along the width direction of the track maintenance trolley 100. Similarly, there are two second quick-release devices 4b, distributed at both ends of the rear wheel frame 31 along the width direction of the track maintenance trolley 100. Correspondingly, four mounting holes 11 can be provided on the frame 1, corresponding to the two first quick-release devices 4a and the two second quick-release devices 4b, respectively. Thus, by connecting multiple quick-release devices to the frame 1, the track maintenance trolley 100 achieves higher structural strength after assembly, improving reliability.

[0069] In some embodiments, reference Figure 5 and Figure 6The limiting assembly may include a fixing seat 41 and a connecting bushing 42. Specifically, the fixing seat 41 may include a seat body 411 and a connecting post 412. The seat body 411 may be formed in the shape of a plate and is fixedly connected to the corresponding front wheel frame 21 or rear wheel frame 31. For example, the seat body 411 of the fixing seat 41 of the first quick-release device 4a may be bolted to the front wheel frame 21, and the seat body 411 of the fixing seat 41 of the second quick-release device 4b may be bolted to the rear wheel frame 31. The connecting post 412 is located on one side of the seat body 411 along the thickness direction. For example, the connecting post 412 is located on the upper side of the seat body 411, that is, the bottom end of the connecting post 412 is connected to the upper surface of the seat body 411. The connecting bushing 42 can be cylindrical and is fitted onto the connecting post 412. When the limiting assembly is assembled with the frame 1, the connecting bushing 42 is adapted to be embedded in the mounting hole 11. In other words, the inner peripheral wall of the connecting bushing 42 contacts the connecting post 412, and the outer peripheral wall of the connecting bushing 42 contacts the frame 1, which can transmit horizontal forces. The connecting bushing 42 and the connecting post 412 together constitute the connecting part of the limiting assembly, and the seat body 411 constitutes the limiting part of the limiting assembly. Thus, the structure of the limiting assembly is relatively simple and easy to assemble.

[0070] In some embodiments, reference Figure 5 and Figure 6 The limiting component also includes a vibration damping pad 43, which is sleeved on the outside of the connecting post 412 and located between the seat body 411 and the connecting bushing 42. That is, the vibration damping pad 43 is located on the upper surface of the seat body 411. In this way, the vibration damping pad 43 can bear the weight of the frame 1 and maintenance equipment, and can also buffer the vibration transmission between the connecting bushing 42 and the seat body 411, preventing the vibration of the front wheel module 2 and the rear wheel module 3 from being transmitted to the frame 1. This helps to prevent the first quick release device 4a and the second quick release device 4b from loosening in the vibration environment, thereby improving the reliability of the track maintenance trolley 100.

[0071] Optionally, the vibration damping pad 43 and the base body 411 are connected by screws, so that the connection between the vibration damping pad 43 and the base body 411 is reliable and the assembly method is relatively simple.

[0072] In a specific example, both the connecting bushing 42 and the damping pad 43 are rubber parts. In this way, both the connecting bushing 42 and the damping pad 43 can buffer the vibration, resulting in a better vibration reduction effect.

[0073] In some embodiments, combined with Figure 4 and Figure 6The connecting post 412 has a connecting hole 413, which extends along the axial direction of the connecting post 412 (i.e., the axial direction of the mounting hole 11). The connecting mating part 442 can be a plug, and the connecting mating part 442 is threadedly engaged with the connecting hole 413. For example, a first connecting thread is formed on the inner wall of the connecting hole 413, and a second connecting thread is formed on the outer wall of the plug. The plug and the connecting hole 413 are threadedly connected. This allows the connecting post 412 of the fixing seat 41 and the connecting mating part 442 of the anti-detachment component 44 to be quickly connected and disassembled, and the connection is reliable, which helps to improve the reliability of the assembled track maintenance trolley 100.

[0074] In some embodiments, combined with Figure 8 and Figure 9 The front wheel frame 21 has a first front mounting seat 211 at each end along its own length direction (i.e., the width direction of the track maintenance trolley 100). The first front mounting seat 211 includes a first front mounting part 212 and a second front mounting part 213. The first front mounting part 212 and the second front mounting part 213 are located on both sides of the front wheel frame 21 along the height direction. For example, the first front mounting part 212 and the second front mounting part 213 can both be formed as plates. The first front mounting part 212 is located on the lower side of the front wheel frame 21, and the second front mounting part 213 is located on the upper side of the front wheel frame 21.

[0075] refer to Figure 7 and Figure 10 The front wheel set 22 may include a front axle 221 and two front rollers 222. The two front rollers 222 are located at both ends of the front axle 221 along its axial direction. The front rollers 222 can be made of nylon, aluminum alloy, or other materials. The front rollers 222 may also have a second front mounting seat 223 on the front axle 221 that corresponds one-to-one with the first front mounting seat 211. The second front mounting seat 223 is bolted to the first front mounting portion 212. A first quick-release device 4a is fixedly mounted on the second front mounting portion 213. For example, the seat body 411 of the fixing seat 41 of the first quick-release device 4a can be bolted to the second front mounting portion 213. That is, the front axle 221 is mounted on the lower side of the front wheel frame 21, and the first quick-release device 4a is fixedly mounted on the upper side of the front wheel frame 21 for easy assembly with the vehicle frame 1.

[0076] In some embodiments, reference Figure 8 and Figure 9The first front mounting base 211 may also include a plurality of first supporting connecting ribs 214. The plurality of first supporting connecting ribs 214 are arranged parallel to each other and spaced apart between the first front mounting part 212 and the second front mounting part 213. The upper and lower ends of the first supporting connecting ribs 214 are connected to the first front mounting part 212 and the second front mounting part 213 respectively, for example by welding. One end of the first supporting connecting rib 214 along the width direction of the track maintenance trolley 100 is connected to the front wheel frame 21, for example by welding. In this way, the first front mounting base 211 has high structural strength, which can make the connection between the front wheelset 22 and the front wheel axle 221 more reliable.

[0077] In some embodiments, reference Figure 7 and Figure 11 The braking mechanism 23 may include: a brake handle 231, a brake pedal 232, a brake cable divider 233, a brake disc 234, and a brake cable 235. Specifically, the brake handle 231 is movably mounted on the front wheel frame 21 and extends from the upper side of the frame 1. The brake pedal 232 is movably mounted on the front wheel frame 21 and extends from the upper side of the frame 1. The brake cable divider 233 is located on one side of the front wheel frame 21 in the longitudinal direction, for example, the brake cable divider 233 is located on the rear side of the front wheel frame 21. There are multiple brake discs 234, which are spaced apart on the front wheel pair 22. The brake calipers 236 correspond one-to-one with the brake discs 234, and the brake calipers 236 can be detachably engaged with the brake discs 234 to achieve braking of the brake discs 234 or separation from the brake discs 234. The brake cable 235 is used to connect the brake caliper 236 and the brake branch rod 233, the brake handle 231 and the brake branch rod 233, and the brake pedal 232 and the brake branch rod 233. The brake cable 235 can transmit braking torque.

[0078] For example Figure 8 As shown, the rear frame of the front wheel carrier 21 is provided with a first front connecting seat 215, a second front connecting seat 216, and a third front connecting seat 217. The first front connecting seats 215 are located at both ends of the rear frame. The brake splitter 233 is provided with two first front mating seats 237 corresponding to the first front connecting seats 215. The brake splitter 233 and the front wheel carrier 21 are connected by fasteners that pass sequentially through the first front connecting seats 215 and the first front mating seats 237, and the brake splitter 233 is rotatable. The second front connecting seat 216 extends approximately vertically. The brake handle 231 is rotatably mounted on the second front connecting seat 216 and connected to the clamp on the brake splitter 233 via a brake cable 235. The clamp can be made of aluminum alloy. The brake pedal 232 is rotatably mounted on the third front connecting seat 217 and connected to the brake splitter 233 via a brake cable 235.

[0079] There are four brake discs 234. Two of the four brake discs 234 are mounted on the flange seats of the front wheel axle 221 with screws, and the other two are mounted on the bushing flanges inside the two front rollers 222 with screws, and are tangentially positioned with the front wheel axle 221 by keys. Each brake disc 234 is equipped with a brake caliper 236, which can clamp the brake disc 234 or separate from it. The brake caliper 236 is connected to the clamp on the brake splitter lever 233 via a brake cable 235. In this way, when the operator pulls the brake lever or depresses the brake pedal 232, the brake cable 235 drives the brake splitter lever 233 to rotate, and the brake splitter lever 233, in turn, drives the brake caliper 236 to clamp the brake disc 234 via the brake cable 235, thereby achieving braking of the vehicle 100.

[0080] Optionally, refer to Figure 2 The frame 1 may be provided with a first clearance hole and a second clearance hole. When the track trolley 100 is assembled, the brake handle 231 can pass through the first clearance hole and the brake pedal 232 can pass through the second clearance hole to facilitate braking operation.

[0081] In some embodiments, any one of the first front mounting base 211, the first front connecting base 215, the second front connecting base 216 and the third front connecting base 217, the brake pedal 232 and the brake handle 231 can be made of aluminum alloy, which provides high structural strength and helps to reduce the overall weight of the front wheel module 2.

[0082] In some embodiments, reference Figure 10 A pair of front bearings 224 are installed at the journal positions at both ends of the front axle 221. The outer ring of the front bearing 224 is installed in the front bearing housing 225 and is axially positioned by the front cover 226, clamp 227 and axle shoulder, respectively. The front rollers 222 are installed at both ends of the front axle 221 and are radially positioned by key connection. Then, they are axially fixed by end nuts. In this way, the front axle 221 and the front rollers 222 are assembled, and the connection reliability is high.

[0083] In some embodiments, the second front mounting base 223 and the front bearing housing 225 can be integrally formed, that is, the second front mounting base 223 can be used to connect the front wheel frame 21 and also serve as the mounting base for the front bearing 224. This helps to reduce the number of parts in the front wheel module 2, thereby reducing the overall weight and facilitating disassembly, assembly and transportation.

[0084] In some possible embodiments, reference Figure 10 The front wheel module 2 may also include an encoder 24, which can be mounted on the front wheel axle 221 to determine the travel speed and mileage of the track maintenance trolley 100.

[0085] In some embodiments, reference Figure 13 The rear wheel frame 31 has a first rear mounting seat 311 at each end along its length. The first rear mounting seat 311 includes a first rear mounting part 312 and a second rear mounting part 313. The first rear mounting part 312 and the second rear mounting part 313 are located on both sides of the rear wheel frame 31 along the height direction. For example, the first rear mounting part 312 is located on the lower side of the rear wheel frame 31, and the second rear mounting part 313 is located on the upper side of the rear wheel frame 31.

[0086] refer to Figure 14 The rear wheel assembly 32 may include a rear wheel axle 321 and two rear rollers 322, located at both ends of the rear wheel axle 321 along its axial direction. The rear rollers 322 may be made of nylon, aluminum alloy, or similar materials. The rear wheel axle 321 has a second rear mounting seat 323 corresponding to the first rear mounting seat 311, and the second rear mounting seat 323 is bolted to the first rear mounting portion 312. A second quick-release device 4b is fixedly mounted on the second rear mounting portion 313.

[0087] For example, the base body 411 of the fixing seat 41 of the second quick-release device 4b can be bolted to the second rear mounting part 313. That is, the rear wheel axle 321 is mounted on the lower side of the rear wheel frame 31, and the second quick-release device 4b is fixedly mounted on the upper side of the rear wheel frame 31 to facilitate assembly with the vehicle frame 1.

[0088] In some embodiments, reference Figure 13 The first rear mounting base 311 may also include a plurality of second supporting connecting ribs 314. The plurality of second supporting connecting ribs 314 are arranged parallel to each other and spaced apart between the first rear mounting part 312 and the second rear mounting part 313. The upper and lower ends of the second supporting connecting ribs 314 are connected to the first rear mounting part 312 and the second rear mounting part 313 respectively, for example by welding. One end of the second supporting connecting rib 314 along the width direction of the track maintenance trolley 100 is connected to the rear wheel frame 31, for example by welding. In this way, the first rear mounting base 311 has high structural strength, which can make the connection between the rear wheel set 32 ​​and the rear wheel axle 321 more reliable.

[0089] In some embodiments, the rear wheel frame 31 is further provided with a first rear connecting seat 315 and a second rear connecting seat 316. The drive mechanism 33 includes a drive member 331 and a drive controller 332. The drive controller 332 is electrically connected to the drive member 331, and the drive member 331 is drively connected to the rear wheel pair 32 to drive the rear wheel pair 32 to rotate. The drive member 331 can be disposed on the first rear connecting seat 315, and the drive controller 332 can be disposed on the second rear connecting seat 316.

[0090] For example Figure 13As shown, both the first rear connecting seat 315 and the second rear connecting seat 316 are located on the front frame of the rear wheel frame 31, and both can be welded to the rear wheel frame 31. The first rear connecting seat 315 is a vertical plate with an interface for mounting the drive component 331. The second rear connecting seat 316 includes two opposing mounting plates with interfaces for mounting the drive controller 332. Both the first and second rear connecting seats 315 and 316 can be made of aluminum alloy to reduce the weight of the rear wheel module 3, facilitating handling and disassembly. The drive component 331 can be a drive motor, and correspondingly, the drive controller 332 is a motor controller. Alternatively, the drive component 331 can also be a hydraulic motor, a wheel-side motor, etc. In another possible embodiment, the drive controller 332 can also be located on the frame 1.

[0091] In some embodiments, combined with Figure 12 and Figure 15 The rear wheel set 32 ​​may also include a first transmission gear 333, a second transmission gear 334, and a gear cover 335. The first transmission gear 333 can be a driving gear and is a pinion, mounted on the output shaft of a drive component 331, such as a drive motor. The second transmission gear 334 can be a driven gear and is a large gear, sleeved on the rear wheel axle 321 and tangentially positioned with the rear wheel axle 321 via a key. The first transmission gear 333 and the second transmission gear 334 mesh with each other to transmit driving force. The rear wheel frame 31 is also provided with a third rear connecting seat 317, and the gear cover 335 is mounted on the third rear connecting seat 317 and covers the outside of the first transmission gear 333 and the second transmission gear 334 to protect them.

[0092] In some embodiments, reference Figure 13 The rear wheel frame 31 may also be provided with a fourth rear connecting seat 318, which may be provided with a power supply device such as a socket, and the fourth rear connecting seat 318 may also be made of aluminum alloy.

[0093] In some embodiments, reference Figure 14 The rear wheel set 32 ​​may also include components such as a rear bearing housing 324, a rear end cover 325, and a rear bearing 326. Specifically, a pair of rear bearings 326 are installed on the journal ends of both ends of the rear wheel axle 321. The outer rings of the rear bearings 326 are installed within the rear bearing housing 324 and are axially positioned by the rear end cover 325 and axle shoulders. Rear rollers 322 are installed at both ends of the rear wheel axle 321 and are radially positioned by a key connection, then axially fixed by end nuts. This assembly of the rear wheel axle 321 and the rear rollers 322 achieves high reliability.

[0094] In some embodiments, the second rear mounting base 323 and the rear bearing housing 324 can be integrally formed, that is, the second rear mounting base 323 can be used to connect the rear wheel frame 31 and also serve as the mounting base for the rear bearing 326. This helps to reduce the number of parts, thereby reducing the overall weight and facilitating disassembly, assembly and transportation.

[0095] According to some embodiments of the present invention, in combination Figure 8 and Figure 13 Each of the front wheel frame 21 and the rear wheel frame 31 is provided with multiple weight-reducing holes 5, which are arranged at intervals. This helps to reduce the weight of the front wheel frame 21 and the rear wheel frame 31, making it easier to assemble, disassemble and transport. In some embodiments, the weight-reducing holes 5 can also be used for wiring, thus making full use of the installation space of the front wheel frame 21 and the rear wheel frame 31 and optimizing the wiring layout.

[0096] In some embodiments, either the front wheel frame 21 or the rear wheel frame 31 is an alloy component. For example, both the front wheel frame 21 and the rear wheel frame 31 can be aluminum alloy components. In this way, while ensuring the strength and rigidity of the front wheel frame 21 and the rear wheel frame 31, it helps to reduce the weight of the front wheel frame 21 and the rear wheel frame 31, making it easier to assemble, disassemble and transport.

[0097] It should be noted that the embodiments referred to in the specification, such as "one embodiment," "embodiment," "exemplary embodiment," and "some embodiments," may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0098] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0099] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0100] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A track maintenance trolley, characterized in that, include: Frame; A front wheel module includes a front wheel frame and a front wheel pair disposed on the front wheel frame, a braking mechanism, and at least one first quick-release device, wherein the braking mechanism engages with the front wheel pair for braking. The rear wheel module includes a rear wheel frame and a rear wheel pair disposed on the rear wheel frame, a drive mechanism, and at least one second quick-release device, wherein the drive mechanism is in transmission cooperation with the rear wheel pair; Either the first quick-release device or the second quick-release device is configured to be detachably connected to the vehicle frame; The frame has multiple mounting holes. Each of the first quick-release device and the second quick-release device includes: A limiting component, the limiting component having a limiting part and a connecting part, the connecting part passing through the mounting hole, and the limiting part abutting against the portion of the vehicle frame located at one axial end of the mounting hole; An anti-detachment component, the anti-detachment component having a limiting fitting part and a connecting fitting part, the connecting fitting part being connected to the connecting part, and the limiting fitting part abutting against the portion of the frame located at the other end of the mounting hole along the axial direction; The limiting component includes: A fixed seat includes a seat body and a connecting post. The seat body is fixedly connected to the corresponding front wheel frame or rear wheel frame, and the connecting post is located on one side of the seat body along the thickness direction. A connecting bushing is sleeved on the connecting post and is adapted to be fitted into the assembly hole. The connecting bushing and the connecting post together constitute the connecting part, and the seat body constitutes the limiting part. The limiting component further includes: a vibration damping pad, which is sleeved on the outside of the connecting column and located between the seat body and the connecting bushing; Both the connecting bushing and the vibration damping pad are rubber components.

2. The track maintenance trolley according to claim 1, characterized in that, The connecting post has a connecting hole extending along its own axial direction, and the connecting mating part is a plug, which is threadedly engaged with the connecting hole.

3. The track maintenance trolley according to claim 1 or 2, characterized in that, The front wheel frame is provided with first front mounting seats at both ends along its length. The first front mounting seat includes a first front mounting part and a second front mounting part located on both sides of the front wheel frame along its height. The front wheelset includes a front axle and front rollers. The front rollers are located at both ends of the front axle along its own axial direction. The front axle is provided with a second front mounting seat that corresponds to the first front mounting seat. The second front mounting seat is bolted to the first front mounting part. The first quick-release device is fixedly mounted on the second front mounting part.

4. The track maintenance trolley according to claim 1 or 2, characterized in that, The braking mechanism includes: A brake handle, which is movably mounted on the front wheel frame and extends from the upper side of the frame; A brake pedal, which is movably mounted on the front wheel frame and extends from the upper side of the frame; Brake splitter lever, the brake splitter lever is located on one side of the front wheel frame in the front-rear direction; Brake discs, wherein the brake discs are a plurality of discs spaced apart on the axles of the front wheelset; Brake caliper, wherein the brake caliper is detachably engaged with the brake disc; The brake cable connects any one of the following: the brake caliper and the brake branch rod; the brake handle and the brake branch rod; or the brake pedal and the brake branch rod.

5. The track maintenance trolley according to claim 1 or 2, characterized in that, The rear wheel frame is provided with first rear mounting seats at both ends along its length. The first rear mounting seat includes a first rear mounting part and a second rear mounting part located on both sides of the rear wheel frame along its height. The rear wheel set includes: a rear wheel axle and a rear roller. The rear roller is located at both ends of the rear wheel axle along its own axial direction. The rear wheel axle is provided with a second rear mounting seat that corresponds one-to-one with the first rear mounting seat. The second rear mounting seat is bolted to the first rear mounting part. The second quick-release device is fixedly installed on the second rear mounting part.

6. The track maintenance trolley according to claim 1 or 2, characterized in that, The rear wheel frame is also provided with a first rear connecting seat and a second rear connecting seat. The drive mechanism includes a drive component and a drive controller. The drive controller is electrically connected to the drive component, and the drive component is drive-connected to the rear wheel set. The drive unit is located on the first rear connector, and the drive controller is located on the second rear connector.

7. The track maintenance trolley according to claim 1 or 2, characterized in that, Each of the front wheel frame and the rear wheel frame is provided with multiple weight-reducing holes, which are arranged at intervals and are also used for cable routing. And / or, either the front wheel frame or the rear wheel frame is an alloy component.

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