Swing frame assembly for rack rail clamping vehicle

Abstract

The invention relates to a swing frame assembly for a rack rail trapped rail vehicle, and belongs to the technical field of rack rail trapped rail vehicles. At least one braking assembly is installed on the swing frame assembly, the braking assembly drives a first braking part (the piston rod end) and a second braking part (the cylinder body end) to move relatively through a braking cylinder, braking / braking releasing is achieved through cooperation with an elastic reset device, and the stroke of the braking part is accurately controlled through a limiting structure. When the brake cylinder enters oil, the brake part gets away from the special-shaped rail to relieve brake; during pressure relief, the elastic reset device drives the brake part to clamp the upper and lower surfaces of the special-shaped rail top plate to complete braking. The design is combined with the swing adaptability of the swing frame assembly, the braking safety and operation stability of the rack rail trapped rail vehicle under the working conditions of fluctuating rails and inclined roadways can be effectively improved, the structure is compact, and response is rapid.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of rack rail clamping vehicles, in particular to a swing frame assembly for a rack rail clamping vehicle. BACKGROUND

[0002] The rack rail clamping vehicle is a special equipment for long-distance transportation in a coal mine underground, uses an explosion-proof battery or a diesel engine as a power source, and realizes heavy-load transportation through the meshing transmission of a driving unit and a rack rail. The vehicle body is configured with a rail clamping guide device, which can constrain the running track of the vehicle body along the track, has high anti-derailing safety in a complex roadway environment, and is widely used in underground transportation operations of large equipment such as hydraulic supports.

[0003] The existing brake system of the rack rail clamping vehicle mainly includes two forms: one is a rotating shaft brake mechanism of a driving part (such as a hydraulic motor or an electric motor), which limits the torque of the driving shaft through a brake disc; and the other is a disc type friction brake for a pin shaft wheel disc, which generates a braking force through a clamp type brake.

[0004] In actual operation, especially when running on a large slope inclined track section, the existing brake system still has the risk of out-of-control coasting, and it is urgent to develop a safety brake device integrated with the driving unit and having a active track clamping function. SUMMARY

[0005] The purpose of the present application is to solve the problem of insufficient braking force of the rack rail clamping vehicle in the prior art by providing a swing frame assembly for a rack rail clamping vehicle, which is installed with a brake assembly.

[0006] To achieve the above purpose, the technical solution adopted by the present application is: a swing frame assembly for a rack rail clamping vehicle, at least one brake assembly is installed thereon, the brake assembly comprises:

[0007] a brake part, including a first brake part for contacting the lower surface of the profiled rail top plate and a second brake part for contacting the upper surface of the profiled rail top plate;

[0008] a brake cylinder, including a cylinder body moving in a direction perpendicular to the top surface of the profiled rail and a piston rod arranged in the cylinder body, an elastic reset device is sleeved on the piston rod in the rod cavity of the cylinder body; the first brake part is arranged at the extending end of the piston rod, and the second brake part is arranged at one end of the cylinder body facing the piston rod; a limiting structure is arranged on the swing frame assembly;

[0009] When the brake cylinder is filled with oil, the first brake part and the second brake part are away from the profiled rail to release the brake, and the maximum moving stroke of both is limited by the limiting structure; when the brake cylinder is depressurized, the elastic reset device drives the first brake part to move towards the second brake part, so that the first brake part and the second brake part are in contact with the lower surface and the upper surface of the top plate of the profiled rail respectively to realize braking.

[0010] In a possible embodiment, the first brake part and the second brake part are respectively provided with a first friction piece and a second friction piece, and the shapes of the first friction piece and the second friction piece are respectively adapted to the lower surface and the upper surface of the top plate of the profiled rail.

[0011] In a possible embodiment, a guide structure is arranged on the swing frame of the swing frame assembly, a guide channel extending in a first direction is formed in the guide structure, the first brake part and the second brake part are respectively in sliding fit with the guide channel and can move in the first direction.

[0012] In a possible embodiment, the limiting structure comprises a first limiting piece and a second limiting piece, the first limiting piece is a limiting plate arranged at the bottom of the guide structure, and the second limiting piece is a limiting boss arranged on the swing frame.

[0013] In a possible embodiment, the elastic reset device is a disc spring assembly.

[0014] In a possible embodiment, the brake cylinder is connected with the swing frame assembly through a tension spring, and the tension spring is used for damping of the brake cylinder.

[0015] In a possible embodiment, a guide wheel is arranged on the swing frame of the swing frame assembly, the guide wheel is arranged on one side of the first brake part and the second brake part, and the guide wheel is used for abutting against the web of the profiled rail.

[0016] In a possible embodiment, a rail clamping wheel is connected to the middle position of the bottom of the swing frame of the swing frame assembly, the rail clamping wheel is located below the top plate of the profiled rail, and is used for rolling contact with the lower surface of the top plate of the profiled rail.

[0017] The beneficial effects of the present application: by integrating the brake assembly on the swing frame assembly, the brake assembly comprises a brake cylinder, a second brake part is fixed on the cylinder body of the brake cylinder, and a first brake part is arranged at the end of the piston rod of the brake cylinder, wherein the first brake part is used for abutting with the lower surface (inclined surface) of the profiled rail, and the second brake part is used for abutting with the upper surface (plane) of the profiled rail. The brake cylinder drives the first brake part and the second brake part to move away from each other and is limited by the first limiting piece and the second limiting piece, and when the brake cylinder is depressurized, the two brake blocks are automatically driven to clamp the top plate of the profiled rail by the elastic reset device in the brake cylinder. The brake cylinder is integrally installed in an up-down floating mode, which can realize self-adaptive adjustment of the distance from the profiled rail top plate, so that the top plate is always arranged in the center, thereby avoiding interference with the top plate during the operation of the rack rail clamp car.

[0018] By installing the swing frame assembly on the bottom of the swing frame of the driving unit, the driving unit simultaneously has three levels of braking, the first level is the self-brake of the driving part of the driving unit, the second level is the disc brake for braking the disc of the driving unit, and the third level is the brake assembly arranged on the swing frame assembly. Through the three levels of braking, the running safety of the rack rail clamp car can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The perspective structural schematic view of the swing frame assembly provided for an embodiment of the present application.

[0020] Figure 2 The front view of the swing frame assembly provided for an embodiment of the present application.

[0021] Figure 3 Another angle perspective structural schematic view of the swing frame assembly provided for an embodiment of the present application.

[0022] Figure 4 The Figure 2 A-A sectional view.

[0023] Figure 5 The schematic view of the brake cylinder provided for an embodiment of the present application.

[0024] Figure 6 The Figure 5 B-B sectional view.

[0025] Figure 7 The perspective structural view of the driving unit provided for an embodiment of the present application.

[0026] In the diagram: 10. Swing frame assembly; 11. Fixed base; 12. First roller; 13. Swing frame; 131. Limiting boss; 14. Guide structure; 141. Limiting plate; 15. Mounting plate; 16. Tension spring; 17. Guide wheel; 18. Rail wheel; 19. Braking assembly; 191. Second braking part; 192. First braking part; 193. Second friction element; 194. First friction element; 195. Cylinder; 196. Piston rod; 197. Elastic reset device; 20. Drive unit; 21. Drive element; 23. Drive wheel; 22. Disc brake; 30. Irregular rail. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0028] like Figure 1 As shown, this embodiment provides a swing frame assembly for a rack railcar. The swing frame assembly 10 can be disposed on both sides of the bottom of the drive unit of the rack railcar. The swing frame assembly 10 runs on the rack rail and can swing to adapt the rack railcar to changes in track undulations.

[0029] refer to Figures 1-3 In some embodiments, the swing frame assembly includes a fixed base 11 and a swing frame 13. The upper end of the fixed base 11 is fixed to the corresponding component of the rack railcar by fasteners such as screws, and the lower end is provided with a hinge lug. A matching lug is correspondingly provided in the middle of the swing frame 13. The hinge lug of the fixed base 11 is pivotally connected to the matching lug via a hinge shaft. The swing frame 13 can swing around the axis of the hinge shaft to adapt to the undulations of the track.

[0030] refer to Figure 3 and Figure 6 A roller assembly is provided on the swing frame 13. This roller assembly includes a first roller 12 and a second roller. Two roller mounting frames are spaced apart on one side of the swing frame 13 along its length. The first roller 12 and the second roller are respectively mounted in their corresponding mounting frames. The rolling surfaces of the rollers are used for rolling contact with the top surface of the irregularly shaped rail 30 on the corresponding side of the toothed rail. This irregularly shaped rail 30 is a dedicated rail with an outwardly extending top plate.

[0031] refer to Figure 1 and Figure 2 In some possible embodiments, two braking assemblies 19 are also provided on the swing frame 13. The two braking assemblies are located on the opposite side of the swing frame 13 along its length and are spaced apart on both sides of the hinge shaft. Mounting frames for the braking assemblies 19 are provided on the swing frame 13, and the braking assemblies are respectively floatingly mounted in their respective mounting frames.

[0032] Reference Figure 1 , Figure 3 , Figure 4 and Figure 6 In the present embodiment, the two brake assemblies 19 are structurally identical, and each comprises a first brake portion 192, a second brake portion 191, a brake cylinder, a first limiting member and a second limiting member. The brake cylinder comprises a cylinder body 195 moving in a first direction (a direction perpendicular to the top surface of the profiled rail), a piston rod 196 moving in the first direction and arranged in the cylinder body 195, and an elastic reset device 197 arranged on the piston rod 196 and in the rod cavity of the cylinder body 195. The first brake portion 192 is fixed to the end of the piston rod 196 extending out of the cylinder body 195, and is used to abut against the lower surface of the top plate of the profiled rail 30. The second brake portion 191 is fixed to the end of the cylinder body 195 facing the first brake portion 192, and is used to abut against the upper surface of the top plate of the profiled rail 30.

[0033] The first limiting member is arranged below the first brake portion 192, and the second limiting member is arranged above the second brake portion 191, so as to limit the movement distance of the two brake portions. When the brake cylinder is filled with oil, the piston rod pushes the first brake portion 192 to move downward and is limited by the first limiting member arranged below it, while the cylinder body 195 drives the second brake portion 191 to move upward under the action of the reaction force, and is limited by the second limiting member arranged above it, so as to release the brake on the profiled rail 30. When the brake cylinder is depressurized, the elastic reset device 197 drives the first brake portion 192 to move towards the second brake portion 191, so that the first brake portion 192 and the second brake portion 191 abut against the lower surface and the upper surface of the top plate of the profiled rail 30 respectively to achieve braking.

[0034] By movably mounting the brake cylinder on the swing frame 13, the positions of the first brake portion 192 and the second brake portion 191 away from each other are limited by the first limiting member and the second limiting member, so that the top plate of the profiled rail 30 is always kept in the middle position between the first brake portion and the second brake portion. During the operation of the rack rail clamping vehicle, it will not interfere with the track and affect the normal operation.

[0035] In some possible embodiments, the first brake portion 192 and the second brake portion 191 are respectively fixedly connected with a first friction member 194 and a second friction member 193 by fasteners such as screws, and the shapes of the first friction member 194 and the second friction member 193 respectively match the upper and lower surfaces of the top plate of the profiled rail 30. The upper surface of the top plate of the profiled rail 30 is a plane, and the lower surface is an inclined surface.

[0036] In some possible embodiments, the swing frame 13 is provided with a guide structure 14, a guide channel is arranged in the guide structure 14 in a first direction, and the first brake part 192 and the second brake part 191 are slidingly arranged in the guide channel and movable in the first direction. The two side surfaces of the first brake part 192 and the second brake part 191 are arranged as coplanar planes, the two side surfaces of the guide channel are in clearance fit with the friction members, and the first brake part 192 and the second brake part 191 move up and down along the guide channel.

[0037] In some possible embodiments, the first limiting part is a limiting plate 141 arranged at the bottom of the guide structure 14, and the second limiting part is a limiting boss 131 arranged on the swing frame.

[0038] In some possible embodiments, the elastic reset device 197 is a disc spring assembly.

[0039] In some embodiments, the brake cylinder is connected with the swing frame 13 through a tension spring 16, the tension spring 16 is used for damping of the brake cylinder, one end of the tension spring 16 is connected with a lug of the cylinder body 195, and the other end is connected with a hook part of the swing frame 13.

[0040] In some embodiments, one side of the swing frame 13 on which the brake assembly 19 is arranged is provided with a guide wheel 17, and the guide wheel 17 is used for abutting against the web plate of the profiled rail 30.

[0041] In some embodiments, referring to Figure 3 , a rail clamping wheel 18 is connected to the middle position of the bottom of the swing frame 13, an installation plate 15 is arranged at the bottom of the swing frame 13, the rail clamping wheel 18 is rotatably connected to the installation plate 15 through a rotating shaft, the outer circumferential surface of the rail clamping wheel 18 is in contact with the lower surface of the top plate of the profiled rail 30, and the rail clamping wheel 18 is used for clamping the rack rail of the rack rail clamping vehicle, thereby preventing the locomotive from overturning.

[0042] In some embodiments, referring to Figure 7 , a driving unit 20 is further provided, the driving unit 20 comprises a driving frame, a driving wheel 23, a driving member 21 and a disc brake 22 are arranged on the driving frame, the driving member 21 can be selected as a hydraulic motor or a motor, a planetary reducer is arranged in the middle of the driving wheel 23, the driving member 21 drives the planetary reducer to control rotation of the driving wheel 23, the driving wheel 23 cooperates with the rack on the rack rail track, thereby realizing operation on the rack rail track.

[0043] In some possible implementations, one swing frame assembly 10 of the above embodiments is arranged at each of the opposite two sides of the bottom of the driving frame, the swing frame assembly 10 can make the driving unit adapt to the ups and downs of the track, has good safety, and does not interfere with the turnout when the locomotive passes through the turnout.

[0044] The three-stage braking system is arranged on the driving unit 20, the first-stage braking is a rotating shaft braking mechanism of the driving member (such as a hydraulic motor, an electric motor), the second-stage braking is a disc friction braking of the driving wheel disc by the disc brake 22, and the third-stage braking is a track braking by the swing frame assembly 10, and the braking assembly 19 is arranged to have good safety, especially when the inclined shaft is operated, the occurrence of the runaway car hidden danger can be reduced. The braking assembly 19 is usually applied to the inclined shaft car, and belongs to the emergency braking. When the braking is needed, the braking assembly 19 drives the first braking part 192 and the second braking part 191 to be close to each other, so that the track braking is realized. When the braking needs to be released, the hydraulic oil is injected into the oil inlet cavity of the brake cylinder, the first braking part 192 and the second braking part 191 are driven to be away from each other, so that the track braking is released.

[0045] It should be noted that in this document, the terms "comprise", "comprising", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0046] The principles and implementation modes of the present application are described by using specific examples in this document, and the above examples are only used to help understand the method of the present application and its core idea. The above description is only the preferred implementation mode of the present application, and it should be pointed out that due to the limited expression of the text, there are infinite specific structures objectively, and for ordinary skilled in the art, some improvements, decorations or changes can be made without departing from the principles of the present application, and the above technical features can also be combined in a proper way; the improvements, decorations, changes or combinations, or the direct application of the inventive concept and technical scheme to other occasions without improvement, should be regarded as the protection scope of the present application.

Claims

1. A swing rack assembly for an Abt rack car, on which at least one brake assembly is mounted, characterized in that, The brake assembly comprises a brake member including a first brake part for contacting the lower surface of the top plate of the profile rail and a second brake part for contacting the upper surface of the top plate of the profile rail; a brake cylinder including a cylinder body moving in a direction perpendicular to the top surface of the profile rail and a piston rod arranged in the cylinder body, an elastic reset device being sleeved on the piston rod in the rod cavity of the cylinder body; the first brake part is arranged at the extending end of the piston rod, and the second brake part is arranged at one end of the cylinder body facing the piston rod; a limiting structure is arranged on the swing frame assembly; When the brake cylinder is filled with oil, the first brake part and the second brake part move away from the profile rail to release the brake, and the maximum moving stroke of the two is limited by the limiting structure; when the brake cylinder is depressurized, the elastic reset device drives the first brake part to move towards the second brake part, so that the first brake part and the second brake part respectively contact the lower surface and the upper surface of the top plate of the profile rail to realize braking.

2. The swing frame assembly of claim 1, wherein, The first brake part and the second brake part are respectively provided with a first friction part and a second friction part, and the shapes of the first friction part and the second friction part are respectively adapted to the lower surface and the upper surface of the top plate of the profile rail.

3. The swing arm assembly of claim 1, wherein, The swing frame of the swing frame assembly is provided with a guide structure, a guide channel extending in a first direction is formed in the guide structure, and the first brake part and the second brake part are respectively in sliding fit with the guide channel and can move in the first direction.

4. The swing arm assembly of claim 3, wherein, The limiting structure comprises a first limiting part and a second limiting part, the first limiting part is a limiting plate arranged at the bottom of the guide structure, and the second limiting part is a limiting boss arranged on the swing frame.

5. The swing arm assembly of claim 2, wherein, The elastic reset device is a disc spring assembly.

6. The swing set assembly of claim 1, wherein, The brake cylinder is connected with the swing frame assembly through a tension spring, and the tension spring is used for damping of the brake cylinder.

7. The swing set assembly of claim 1, wherein, The swing frame of the swing frame assembly is provided with a guide wheel, the guide wheel is arranged on one side of the first brake part and the second brake part, and the guide wheel is used for abutting against the web of the profile rail.

8. The swing set assembly of claim 1, wherein, A rail clamping wheel is connected to the middle position of the bottom of the swing frame of the swing frame assembly, the rail clamping wheel is located below the top plate of the profile rail, and is used for rolling contact with the lower surface of the top plate of the profile rail.

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