Track conveying system of rack rail car for conventional rail

Abstract

The present invention discloses a rail conveying system of a rack rail car for common rails, which belongs to the technical field of rack rail car cards. It includes a rail assembly and a driving unit assembly; the rail assembly includes two common rails and a rack arranged between the two common rails, guide plates are arranged on both sides of the rack, and the rack and the guide plate extend along the length direction of the common rail; the driving unit assembly includes a frame, a driving wheel disc assembly meshing with the rack is arranged on the frame, and a swing assembly is arranged on both sides below the frame, and the swing assembly includes a swing frame hinged below the frame, the middle part of the swing frame is hinged on the frame and wheels are rotatably connected at both ends, a rail assembly is connected to the wheel axle of the wheel, the wheel is rollingly connected to the top surface of the common rail, and the rail assembly cooperates with the guide plate to prevent the wheel from leaving the common rail.

Description

Technical Field

[0001] The invention belongs to the technical field of rack rail clamping, and in particular relates to a track conveying system of a rack rail clamping vehicle for general tracks. Background Art

[0002] A rack rail vehicle is a vehicle that uses a diesel engine or battery as power, controls the drive wheels of the drive unit to run on a rack rail on the ground, and has a rail-locking device that cooperates with the track to prevent the locomotive from rolling over. At present, this type of vehicle is widely used in coal mines and other places where long-distance and steep slope transportation is required.

[0003] Existing rack rail cars need to be re-laid with special tracks to run, and the special tracks include two special-shaped rails and a rack rail arranged between the two special-shaped rails. The driving wheels of the rack rail car mesh with the rack rails to provide power, and the wheels run on the top of the special-shaped rails. The rail clamping devices on both sides cooperate with the special-shaped rails to prevent the locomotive from rolling over. Although this rack rail car structure can ensure the safe operation of the vehicle, it has the following disadvantages:

[0004] 1. It is necessary to lay special tracks, which increases the cost of mine construction;

[0005] 2. It is not compatible with the existing ordinary rail system, which limits the application scope of the vehicle;

[0006] 3. The maintenance and replacement costs of dedicated tracks are high.

[0007] In many coal mines, ordinary rails for the operation of endless ropes or electric locomotives have been laid. If the rack rail car can be operated on ordinary rails, it can not only make full use of the existing rail resources, but also significantly reduce the cost of laying coal mine rails, which has important economic value and broad market application prospects. However, there is no rack rail car that can run on ordinary rails. Summary of the invention

[0008] The object of the present invention is to provide a track conveying system for a rack rail car for conventional tracks in view of the above problems.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is: a track conveying system for a rack rail car for general rails, comprising a track assembly and a drive assembly;

[0010] The track assembly includes two common rails and a rack disposed between the two common rails, guide plates are disposed on both sides of the rack, and the rack and the guide plates extend along the length direction of the common rails;

[0011] The driving part assembly includes a frame, on which a driving wheel assembly meshing with the rack is arranged, and a swing assembly is respectively arranged on both sides below the frame, and the swing assembly includes a swing frame hinged below the frame, the middle part of the swing frame is hinged on the frame and wheels are rotatably connected at both ends thereof, a rail assembly is connected to the wheel axle of the wheel, the wheel is rollingly connected to the top surface of the general rail, and the rail assembly cooperates with the guide plate to prevent the wheel from leaving the general rail.

[0012] In a possible embodiment, the track assembly also includes a base plate, the rack and the guide plate are fixedly arranged on the base plate, the guide plate includes a vertical plate and a transverse plate fixed on the top of the vertical plate, and the transverse plate extends in a direction away from the rack.

[0013] In a possible embodiment, the rail assembly includes a connecting member fixed on the wheel axle and a rail member connected to the lower end of the connecting member, and the rail member includes a rail portion extending below the transverse plate.

[0014] In a possible embodiment, the rail-securing member is configured as a rail-securing wheel, and the rail-securing wheel is rotatably connected to the connecting member.

[0015] In a possible embodiment, the rail member is configured as a block, and the block is fixedly connected to the connecting member.

[0016] In a possible embodiment, a mounting shaft section extending toward the rack is provided on the axle of the wheel, and the connecting member is fixedly mounted on the mounting shaft section.

[0017] In a possible embodiment, a braking system is also provided on the swing frame, and the braking system includes a braking assembly and a separation device. The braking assembly includes a brake caliper, an elastic member and a brake rod. The elastic member and the brake caliper are both installed on the brake rod. The elastic member is used to drive the brake caliper to abut against the two side surfaces of the top plate of the common rail; the separation device is installed on the swing frame, and is used to drive the brake caliper to separate from the common rail.

[0018] In a possible embodiment, the brake caliper includes a first brake arm and a second brake arm, and brake blocks are respectively provided on the first brake arm and the second brake arm, the two brake blocks are arranged opposite to each other and are located on both sides of the general rail top plate, the first brake arm is fixedly mounted on one end of the brake rod, the second brake arm is movably connected to the brake rod, and the elastic member is used to drive the second brake arm to move toward the first brake arm.

[0019] In a possible embodiment, the separation device includes a separation cylinder, a wedge-shaped portion is provided at the end of a piston rod of the separation cylinder, and a slot matching the shape of the wedge-shaped portion is formed between the first brake arm and the second brake arm;

[0020] When the piston rod is extended, the wedge-shaped portion slides along the slot and applies a lateral force to the first brake arm and the second brake arm, so that the brake block is separated from the common rail;

[0021] When the separation oil cylinder releases pressure, the elastic member drives the first brake arm to move toward the second brake arm, so that the wedge-shaped portion escapes from the slot.

[0022] In a possible embodiment, the brake assembly includes two components arranged on both sides of the hinge point of the swing frame, the separation device is arranged between the two brake assemblies, and the separation cylinder is configured as a double-acting cylinder, and the piston rod ends at both ends are provided with wedge-shaped portions, and the two wedge-shaped portions respectively slide in the slots on the corresponding brake calipers.

[0023] Beneficial effects of the present invention: The rail conveying system enables the wheels to adapt to the ups and downs and bends of the common rails through the hinged structure of the swing assembly, and cooperates with the anti-derailment design of the rail clamp assembly and the guide plate, so that the rail clamp vehicle can run stably on the common rails. The fail-safe brake assembly that uses elastic parts to drive the brake caliper to clamp the common rails, combined with the separation device to realize brake release, ensures the reliability of braking and improves the safety and practicality of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the three-dimensional structure of the track operation system provided by the present invention.

[0025] Figure 2 This is a front view of the track operation system provided by the present invention.

[0026] Figure 3 A side view of the rail transportation system provided by the present invention.

[0027] Figure 4 A schematic diagram of the three-dimensional structure of the track assembly provided by the present invention.

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the driving unit assembly provided by the present invention.

[0029] Figure 6 It is a three-dimensional structural schematic diagram of the connection between the swing assembly and the brake assembly of the present invention.

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the swing assembly of the present invention.

[0031] Figure 8 Schematic diagram of the brake assembly of the present invention.

[0032] Fig. 9 It is a front view of the separation device of the present invention.

[0033] Fig.10 It is a schematic diagram of the three-dimensional structure of the brake assembly of the present invention.

[0034] Fig.11 For the present invention Figure 2 AA section view after removing the track assembly.

[0035] The text labels in the figure are as follows: 100, track assembly; 110, general rail; 120, bottom plate; 130, guide plate; 131, vertical plate; 132, horizontal plate; 140, rack rail; 200, drive unit assembly; 210, drive member; 220, disc brake; 230, frame; 240, brake assembly; 241, housing; 242, first brake arm; 243, second brake arm; 244, separation cylinder; 245, cylinder mounting seat; 246, slot; 247, brake rod; 248, elastic member; 249, baffle; 250, swing assembly; 251, swing frame; 252, wheel; 253, connecting member; 254, track wheel; 255, mounting shaft section; 256, articulated seat; 260, drive wheel; 270, slider. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0037] like Figure 1-Figure 5 As shown, this embodiment provides a track conveying system for a rack rail vehicle for conventional tracks, including a track assembly 100 and a drive assembly 200 .

[0038] refer to Figure 1 and Figure 4 The track assembly 100 includes two parallel common rails 110. A rack rail 140 is fixedly installed between the two common rails 110. Guide plates 130 are fixedly installed on both sides of the rack rail 140, and the guide plates 130 are arranged parallel to the rack rail 140 and extend along the length direction of the common rail 110.

[0039] refer to Figure 1 and Figure 5The driving assembly 200 includes a frame 230, and a driving wheel assembly is installed in the middle of the frame 230. The driving wheel assembly includes a driving wheel 260 installed on the frame 230. The driving wheel 260 is meshed with the rack 140 for transmission. The driving wheel 260 is driven by a driving member 210, and the driving member 210 can be an electric motor or a hydraulic motor. The driving wheel 260 here includes an outer ring pin wheel structure and an internal planetary gear mechanism. The driving member 210 drives the reducer to move, and the reducer drives the planetary gear in the middle of the driving wheel 260 to rotate, thereby driving the outer ring pin wheel to rotate. The outer ring pin wheel cooperates with the rack 140 to drive the locomotive to run on the track.

[0040] refer to Figure 1 , Figure 6 and Figure 7 , a swing assembly 250 is arranged on each side below the frame 230, and the swing assembly 250 is used to run on the ordinary track 110. Through the swing assembly 250, the locomotive can run smoothly on the curved and undulating tracks. The swing assembly 250 includes a swing frame 251, and the middle part of the swing frame 251 is hinged to the lower part of both sides of the frame 230 through a pin shaft. Optionally, a hinge seat 256 is arranged on both sides of the frame 230, and the swing frame 251 is connected to the hinge seat 256 through a pin shaft. The two ends of the swing frame 251 are rotatably connected to wheels 252 through bearings. The inner end of the wheel axle of the wheel 252 facing the rack rail 140 is arranged on a mounting shaft section 255, and a rail clamping assembly is fixedly installed on the mounting shaft section 255.

[0041] The wheel 252 runs on the top plate of the track 110, and the track-gripping assembly prevents the wheel 252 from detaching from the track 110 by cooperating with the guide plate 130. The swing frame 251 can swing around the pin, so that the wheel 252 can adapt to the unevenness of the track, ensuring that the wheel 252 is in reliable contact with the track 110. The driving wheel 260 provides driving force by meshing with the rack 140, driving the entire driving unit assembly 200 to move forward along the track.

[0042] The track conveying system has a simple and reliable structure, realizes stable driving through the cooperation of the general rail 110 and the rack rail 140, and adopts a track clamping assembly to prevent derailment, so the operation safety is good.

[0043] In some possible embodiments, reference Figure 4 The track assembly 100 further includes a bottom plate 120, which is made of a steel plate. The rack rail 140 and the guide plate 130 are both fixed to the upper surface of the bottom plate 120 by welding to form an integral prefabricated component. The general rail 110 and the bottom plate 120 are both fixed to the sleeper by fasteners.

[0044] Continue to refer Figure 4The guide plate 130 includes a vertical plate 131 and a horizontal plate 132 fixed on the top of the vertical plate 131. The vertical plate 131 is vertically welded to the bottom plate 120, and the horizontal plate 132 is horizontally welded to the top of the vertical plate 131 and extends in a direction away from the rack 140. The extension length is determined according to the size of the rail assembly to ensure that the rail assembly can be reliably clamped under the horizontal plate 132.

[0045] In some possible embodiments, reference Figure 1 , Figure 4 and Figure 6 The rail assembly includes a connector 253 fixed on the mounting shaft section 255, and a rail member connected to the lower end of the connector 253, and the rail member has a rail portion extending below the transverse plate 132. In some embodiments, the axle of the wheel 252 has a mounting shaft section 255 extending toward the rack 140, and the connector 253 is fixedly mounted on the mounting shaft section. The connector 253 is provided with a hole for the mounting shaft section 255 to pass through, and the connector 253 is fixed to the mounting shaft section 255 by a fastener such as a set screw.

[0046] refer to Figure 3 , Figure 4 and Figure 6 In some possible implementations, the track member is configured as a track wheel 254 , which is rotatably connected to the connecting member 253 , and a wheel body portion of the track wheel 254 extends below the transverse plate 132 .

[0047] In some other possible implementations, the rail member is configured as a block, which is fixedly connected to the connecting member 253 , and a portion of the block extends below the transverse plate 132 .

[0048] When the rack rail car rolls over during operation, the rail-carrying member and the guide plate 130 can prevent the car from rolling over.

[0049] refer to Figure 1 , Figure 2 as well as Figure 5 In some possible embodiments, the driving unit assembly 200 further includes a disc brake 220, which is mounted on the frame 230 and is used to brake the wheel disc of the driving wheel. Slide blocks 270 are also provided at four positions of the frame 230, front, back, left, and right. An annular groove is provided on the mounting frame of the driving unit assembly 200. The slide block 270 slides in the annular groove to adapt to the changes in the track and make the operation smoother.

[0050] refer to Figure 6-Figure 11Furthermore, in order to improve the safety of the rack rail car running on the common rail 110, a brake system is also provided on the swing frame 251, and the brake system includes a brake assembly 240 and a separation device. The brake assembly 240 includes a brake caliper, an elastic member 248 and a brake rod 247; the brake caliper and the elastic member 248 are installed on the brake rod 247, and the elastic member 248 is used to drive the brake caliper to move so that the brake caliper is clamped on both sides of the top plate of the common rail 110. The cylinder of the separation device is fixedly installed on the swing frame 251, and is used to drive the brake caliper to separate from the top plate of the common rail 110.

[0051] refer to Figure 1 , Figure 3 , Figure 8 and Fig.11 The brake caliper includes a first brake arm 242 and a second brake arm 243. The lower ends of the first brake arm 242 and the second brake arm 243 are respectively provided with brake blocks. The two brake blocks are arranged opposite to each other and are located on both sides of the top plate of the general rail 110. Wear-resistant particles are arranged on the surface of the brake blocks. The first brake arm 242 is fixedly mounted on one end of a brake rod 247. The second brake arm 243 is slidably mounted on the brake rod 247. A baffle 249 is fixed on the other end of the brake rod 247. An elastic member 248 is mounted on the brake rod 247 and one end thereof abuts against the baffle 249. The brake rod 247 is also sleeved with a housing 241 with an open end. The elastic member 248 is arranged in the housing 241 and the other end thereof abuts against the non-open end of the housing 241. The brake rod 247 is arranged through the swing frame 251. A sleeve is also arranged between the second brake arm 243 and the housing 241. Optionally, the elastic member 248 is a disc spring or a spring. The first brake arm 242 and the second brake arm 243 abut against the top plate of the common rail 110 under the elastic force of the elastic member 248 to achieve braking.

[0052] In some embodiments, reference Figure 6 , Fig. 9 and Fig.10 The separation device includes a separation cylinder 244, and a wedge-shaped portion is provided at the end of the piston rod of the separation cylinder 244. Accordingly, a slot 246 is formed between the first brake arm 242 and the second brake arm 243. The slot 246 matches the wedge-shaped portion. Specifically, the wedge-shaped portion is set as a cone structure with a circular or trapezoidal cross section. When the oil inlet piston rod of the separation cylinder 244 is extended, its wedge-shaped portion is inserted into the slot 246. The lateral component force generated by the squeezing of the wedge-shaped portion separates the first brake arm 242 and the second brake arm 243, that is, the brake block is separated from both sides of the top plate of the conventional rail 110, thereby releasing the brake. The separation cylinder 244 is connected to the hydraulic system of the rack rail car, and the oil inlet and pressure relief of the separation cylinder 244 are controlled by the control valve.

[0053] When braking is required, the separation cylinder 244 releases pressure, and the elastic member 248 drives the second brake arm 243 to move toward the first brake arm 242. Due to the wedge-shaped structure of the wedge-shaped portion, the piston rod of the separation cylinder 244 disengages from the slot 246 under the squeezing force of the first brake arm 242 and the second brake arm 243, thereby achieving braking.

[0054] In some embodiments, reference Figure 6 , Figure 8 and Fig. 9 The brake assembly 240 includes two brake assemblies 240 arranged on both sides of the hinge point of the swing frame 251, and the separation device is arranged in the space between the two brake assemblies 240. Optionally, the separation cylinder 244 is set as a double-acting cylinder, and the piston rod ends at both ends thereof are provided with wedge-shaped parts, and the two wedge-shaped parts are respectively arranged in the slots 246 on the corresponding brake calipers. The separation of the two brake calipers can be driven by the action of the double-acting separation cylinder 244.

[0055] In some embodiments, reference Figure 8 The separation cylinder 244 is mounted on a cylinder mounting seat 245, and the cylinder mounting seat 245 is fixed on a swing frame.

[0056] When the drive unit assembly 200 is mounted on the mounting frame to form a drive unit assembly, a control host is mounted on the drive unit assembly, and the drive unit assembly is connected to the cab and other components through a connecting rod to form a rack rail car complete machine, and the rack rail car complete machine is operated on the track assembly 100, thereby realizing the operation of the rack rail car on the common rail 110. The cab of the rack rail car and the flatbed car and other components running on the track are also provided with swing assemblies similar to the drive unit assembly, and the wheels of these swing assemblies are all running on the common rail, and the center of gravity distribution of the rail car is adaptively adjusted with the ups and downs of the track.

[0057] When this embodiment is used specifically, the drive assembly, cab, main engine and other components of the rack rail car are connected to each other through connecting rods to form a train. Start the drive member 210, and drive the whole vehicle forward through the meshing of the drive wheel 260 and the rack 140. During operation, the wheel 252 runs on the ordinary rail 110, and the swing assembly 250 swings around the axis of the pin hinged to the hinge seat 256. By swinging left and right to keep the wheel 252 tangent to the top surface of the ordinary rail 110, the center of gravity distribution of the rail car components is adaptively adjusted to adapt to the ups and downs of the track. When encountering a curved track, the drive assembly 200 as a whole rotates in the annular groove set on the mounting frame of the drive assembly 200 through the slider 270, and the angle is adaptively adjusted to adapt to the bending change of the track. If a lateral force is encountered, the rail wheel 254 will cooperate with the transverse plate 132 to prevent the locomotive from overturning. When braking is required, two braking methods can be used: one is conventional braking, in which the disc of the driving wheel is braked by the disc brake 220; the other is emergency braking, in which the separation cylinder 244 is depressurized, the piston rod of the separation cylinder 244 is retracted, and the brake assembly 240 controls the brake caliper to clamp the two sides of the top plate of the general rail 110 under the action of the elastic member 248. When the brake needs to be released, the separation cylinder 244 is filled with oil, and its wedge-shaped portion is inserted into the slot 246, separating the first brake arm 242 and the second brake arm 243, so that the brake block is separated from the general rail 110.

[0058] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0059] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A track conveying system for a rack rail car for ordinary rails, characterized in that: It comprises a track assembly and a driving part assembly; the track assembly comprises two common rails and a rack arranged between the two common rails, guide plates are respectively arranged on both sides of the rack, and the rack and the guide plate extend along the length direction of the common rail; the driving part assembly comprises a frame, a driving wheel disc assembly meshing with the rack is arranged on the frame, and a swing assembly is respectively arranged on both sides below the frame, the swing assembly comprises a swing frame hinged under the frame, the middle part of the swing frame is hinged on the frame and wheels are rotatably connected at both ends thereof, a rail clamping assembly is connected to the wheel axle of the wheel, the wheel is rollingly connected to the top surface of the common rail, and the rail clamping assembly cooperates with the guide plate to prevent the wheel from detaching from the common rail; a braking system is also arranged on the swing frame, and the braking system comprises a braking assembly and a separation device; The brake assembly comprises a brake caliper, an elastic member and a brake rod, the brake caliper comprises a first brake arm and a second brake arm, the first brake arm is fixedly mounted on one end of the brake rod, and the second brake arm is movably connected to the brake rod; the elastic member is mounted on the brake rod and is used to drive the brake caliper to abut against the two side surfaces of the top plate of the general rail; The separation device is installed on the swing frame, and the separation device includes a separation cylinder, a wedge-shaped portion is provided at the end of the piston rod of the separation cylinder, and a slot matching the shape of the wedge-shaped portion is formed between the first brake arm and the second brake arm; when the piston rod is extended, the wedge-shaped portion slides along the slot and applies a lateral component force to the first brake arm and the second brake arm to make the brake caliper detach from the ordinary rail; when the separation cylinder is depressurized, the elastic member drives the first brake arm to move toward the second brake arm to make the wedge-shaped portion disengage from the slot.

2. The rail conveying system according to claim 1, characterized in that: The track assembly also includes a bottom plate, the rack and the guide plate are fixedly arranged on the bottom plate, the guide plate includes a vertical plate and a transverse plate fixed on the top of the vertical plate, and the transverse plate extends in a direction away from the rack.

3. The rail conveying system according to claim 2, characterized in that: The rail assembly comprises a connecting member fixed on the wheel axle and a rail member connected to the lower end of the connecting member, and the rail member comprises a rail portion extending below the transverse plate.

4. The rail conveying system according to claim 3, characterized in that: The rail-blocking member is configured as a rail-blocking wheel, and the rail-blocking wheel is rotatably connected to the connecting member.

5. The rail conveying system according to claim 3, characterized in that: The rail member is configured as a block, and the block is fixedly connected to the connecting member.

6. The rail conveying system according to claim 3, characterized in that: The connecting member is fixed to the end of the wheel shaft extending in the direction of the rack.

7. The rail conveying system according to claim 1, characterized in that: The first brake arm and the second brake arm are respectively provided with brake blocks, and the two brake blocks are arranged opposite to each other and are located on both sides of the general rail top plate.

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