Rail type unit support carrying flat car

By designing a rail-mounted unit support transport flatbed cart and adopting a tilting lifting gantry and hydraulic control system, the problem of inconvenient transportation of heavy objects in coal mine roadways was solved, enabling flexible hoisting and transportation, and reducing manual labor intensity and safety risks.

CN223990838UActive Publication Date: 2026-03-13ZHENGZHOU COAL MINING MACHINERY (GRP) CO LTD +1
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Patent Information

Application Number
CN202520330719.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-03-13
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

Existing trackless transport equipment cannot flexibly lift heavy objects in coal mine roadways, and rail transport equipment lacks lifting capabilities, resulting in inconvenience and safety hazards in transporting heavy objects in roadways.

Method used

Design a rail-mounted unit support transport flatbed cart equipped with a tilting lifting gantry frame to achieve mechanized hoisting and transport through tilting lifting. Combined with a hydraulic control system and adjustable wheelbase wheels, it can meet the transportation needs in narrow alleys.

Benefits of technology

It enables flexible hoisting and transportation in narrow alleyways, reduces manual labor intensity, improves safety and economy, and adapts to hoisting needs in multiple scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a rail type unit support carrying platform lorry which comprises a carrying vehicle and an overturning and hoisting portal frame arranged on the carrying vehicle, the overturning and hoisting portal frame comprises an overturning stand column and a hoisting cross beam arranged at the top end of the overturning stand column, the bottom end of the overturning stand column rotates relative to the carrying vehicle, and an overturning oil cylinder is arranged on the side face of the overturning stand column. The overturning stand column is driven by the overturning oil cylinder to drive the lifting cross beam to be overturned out of or overturned into the carrying vehicle. The rail type unit support carrying flat car has the advantages that the overturning and hoisting portal frame is arranged on the carrying car, mechanical hoisting and carrying operation of the unit support or other heavy objects can be completed in a narrow roadway in an overturning and hoisting mode, the hoisting range in the roadway is large, the hoisting position is flexible, the hoisting weight is large, and the operation is convenient. And the multi-scene hoisting requirements are met, the structure is simple, the safety is high, and economy and practicability are achieved.
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Description

Technical Field

[0001] This utility model relates to an auxiliary transportation and hoisting equipment for coal mine roadways, specifically, to a rail-mounted unit support transport flatbed vehicle. Background Technology

[0002] Unit supports are a type of support structure used in coal mine roadways, often referred to as stacked supports. They typically use two or one support column to support the roadway roof, preventing deformation caused by roof pressure and protecting personnel and equipment. Unit supports are generally used in the two roadways of the longwall face. As the longwall face advances, the unit supports need to be moved, with those closer to the face moved to the front for re-support. Since the unit supports themselves cannot move, specialized equipment such as support transport vehicles is required for relocation. Relocation generally includes hoisting and transportation operations. In addition, equipment in fully mechanized mining faces often requires the replacement of parts. When these parts reach a certain tonnage, similar to unit supports, these heavy objects also require hoisting and transportation operations.

[0003] Coal mine underground transportation is mainly divided into trackless transportation and rail transportation. Trackless transportation equipment mainly consists of rubber-wheeled or tracked vehicles, such as the mine stack support transport vehicle disclosed in Chinese utility model patent CN202220666676.4. This type of trackless transportation equipment is generally large and expensive, and its limited space due to the constraints of the tracks within the roadway prevents its use in tracked roadways. Rail transportation equipment requires two steel rails to be laid in the roadway as the running track, using flatbed carts such as those for rail transport to achieve the transport of goods along the tracks.

[0004] However, rail transport equipment is generally not equipped with hoisting equipment, and most trackless transport equipment is also not equipped with hoisting equipment. After the unit or heavy object is transported to the target location in the roadway, additional hoisting devices need to be configured in the roadway. For example, the anchor cables on the top of the roadway need to be used as hoisting points for lifting heavy objects, or a special hoisting gantry needs to be manufactured for lifting heavy objects. The hoisting points are relatively fixed and cannot be moved flexibly. They cannot meet the requirements of hoisting and unloading in various locations in the roadway. Moreover, there are certain requirements for the height of the roadway, and there are certain dangers to the operators. It is difficult to meet the hoisting needs of the roadway.

[0005] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by providing a rail-mounted unit support transport flatbed cart. The transport cart is equipped with a tilting and lifting gantry, which can complete the mechanized hoisting and transport of unit supports or other heavy objects in narrow alleys through tilting and lifting. It has a simple structure, high safety, and is economical and practical.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes a transport vehicle and a tilting lifting gantry frame mounted on the transport vehicle. The tilting lifting gantry frame includes a tilting column and a lifting beam mounted on the top of the tilting column. The bottom end of the tilting column rotates relative to the transport vehicle. A tilting cylinder is provided on the side of the tilting column. The tilting column is driven by the tilting cylinder to tilt the lifting beam out of or into the transport vehicle.

[0008] Based on the above, tilting cylinders are installed on both sides of the tilting column so that the lifting beam can be tilted out of or into the transport vehicle from both sides.

[0009] Based on the above, the tilting gantry crane also includes a base, which is fixedly mounted on the transport vehicle, and the bottom ends of the tilting column and the tilting cylinder are rotatably mounted on the base.

[0010] Based on the above, a hydraulic cylinder connecting plate is fixedly installed on the upper side of the tilting column, and the upper end of the tilting hydraulic cylinder is rotatably connected to the hydraulic cylinder connecting plate.

[0011] Based on the above, the tilting column is equipped with a lifting column and a lifting cylinder. The lifting cylinder drives the lifting column to rise and fall inside the tilting column, and the lifting beam is located at the top of the lifting column.

[0012] Based on the above, the lifting beam rotates relative to the tilting column, and the lifting beam is equipped with a lifting frame and / or lifting ring.

[0013] Based on the above, the transport vehicle is equipped with a fixed outer cylinder, inside which is a telescopic cylinder and a horizontal cylinder. The horizontal cylinder drives the telescopic cylinder to extend and retract within the fixed outer cylinder. The end of the telescopic cylinder is equipped with a support leg cylinder, and the bottom of the support leg cylinder is equipped with a telescopic support leg. The telescopic support leg is used to support the ground downwards to stabilize the vehicle body.

[0014] Based on the above, it also includes a hydraulic control system, which includes a control valve and a hydraulic lock. The control valve and the hydraulic lock control the extension and retraction of the cylinder through hydraulic oil.

[0015] Based on the above, the hydraulic control system uses an external emulsion as the hydraulic oil.

[0016] Based on the above, the transport vehicle includes three or more wheel pair mounting positions to enable the adjustable wheelbase function of the transport vehicle.

[0017] This utility model has substantial features and advancements compared to existing technologies. Specifically, the track-mounted unit support transport flatbed cart of this utility model has the following advantages: The transport cart is equipped with a tilting lifting gantry, which, through tilting and lifting, enables mechanized hoisting and transporting of unit supports or other heavy objects in narrow passageways. It features a simple structure, high safety, and is economical and practical. The tilting lifting gantry can raise, lower, and tilt the lifting beam. The lifting beam is used to tilt the unit support or heavy object to the middle of the transport cart, and then the lifting beam is used to press the transported object firmly, thus achieving the hoisting function of heavy objects. The tilting lifting gantry can tilt to the left and right sides to meet the loading and unloading requirements of both sides of the passageway. The equipment is equipped with extendable and retractable outriggers to ensure stability during lifting. The wheelbase of the transport vehicle is adjustable to adapt to the needs of tunnels with different turning radii. The hydraulic control system enables mechanized lifting and support operations. The transport vehicle is adaptable to narrow tunnels, has a large lifting range within the tunnel, and is flexible in lifting position and can lift large weights, meeting the lifting needs of various scenarios. The equipment itself does not require a power system, resulting in low cost. It realizes the lifting, loading, unloading, and transportation of unit supports or heavy objects in tunnels using rail transport. It can move along the rail to the position where lifting is required, making it flexible, mobile, simple, and reliable. It can greatly reduce the difficulty of manual loading and unloading of materials and reduce the intensity of manual labor. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0019] Figure 2 This is a front view of the overall structure of this utility model;

[0020] Figure 3 yes Figure 2 Cross-sectional view of the middle section of the structure along line AA;

[0021] Figure 4 yes Figure 2 Cross-sectional view of the middle section of the structure along line BB;

[0022] Figure 5 This is a schematic diagram of the handling state of this utility model;

[0023] Figure 6 This is a connection diagram of the hydraulic control system of this utility model;

[0024] In the figure, the attached figures are labeled as follows:

[0025] 10. Transport vehicle, 11. Telescopic outriggers, 12. Outrigger cylinders, 13. Fixed outer cylinder, 14. Telescopic cylinder, 15. Horizontal cylinder, 16. Wheelset mounting position, 17. Frame, 18. Wheelset, 19. Wheelset mounting seat.

[0026] 21. Tilting column, 22. Lifting beam, 23. Tilting cylinder, 24. Base, 25. Lifting column, 26. Lifting cylinder, 27. Cylinder connecting plate, 28.

[0027] Control valve 31, hydraulic lock 32;

[0028] Unit bracket 40;

[0029] Track 50. Detailed Implementation

[0030] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0031] like Figures 1-6 As shown, the rail-type unit support transport flatbed of this utility model includes a transport vehicle 10, a tilting and lifting gantry frame and a hydraulic control system. The tilting and lifting gantry frame is mounted on the transport vehicle 10, and the hydraulic control system is used to control the extension and retraction of various hydraulic cylinders on the transport flatbed frame of this utility model. Unlike the existing type of gantry frame that uses a crane (such as an electric hoist) to lift heavy objects, the tilting and lifting gantry frame lifts heavy objects by tilting the entire structure.

[0032] The transport vehicle 10 can be pulled by the steel wire rope of the mine winch; the wheel spacing of the transport vehicle 10 can be set to be the same as the track gauge of the existing transport track 50 so as to travel on the existing transport track 50; the transport vehicle 10 can be connected with other transport vehicles 10 to achieve group traction and travel; the transport vehicle 10 is designed with a short and narrow body to achieve passage in narrow tunnels.

[0033] like Figure 2 As shown, the transport vehicle 10 includes components such as a frame 17, wheelsets 18, and wheelset mounting seats 19, allowing the transport vehicle 10 to serve as an integral chassis and support component. The transport vehicle 10 includes two sets of wheelset mounting seats 19, front and rear, with three or more wheelset mounting positions 16 on each set. These mounting positions 16 can fix the wheelsets 18 and axles in different positions, thus enabling the transport vehicle 10 to have an adjustable wheelbase. Different wheelbases allow for different loading capacities and different turning radii, adapting to track travel requirements with varying turning radii. Figure 2 The wheelset mounting positions 16 shown in the image are provided with 6 positions, and the front and rear wheelset fixing seats 19 are each provided with 3 positions.

[0034] It is worth mentioning that the flatbed transport vehicle of this utility model can be configured as a track-type trolley or a trackless flatbed transport vehicle.

[0035] It is worth mentioning that, in addition to the transport unit bracket 40, the pallet truck of this utility model can transport other types of heavy objects.

[0036] like Figure 1 , Figure 3 As shown, the tilting gantry crane includes a tilting column 21 and a lifting beam 22 located at the top of the tilting column 21. The bottom end of the tilting column 21 rotates relative to the transport vehicle 10. Preferably, the tilting column 21 can be turned to one or both sides of the transport vehicle 10's forward direction. A tilting cylinder 23 is provided on the side of the tilting column 21, and a certain distance is provided between the tilting cylinder 23 and the tilting column 21 to prevent interference between the tilting column 21 and the tilting cylinder 23 when the tilting column 21 tilts. The tilting column 21 is subjected to... The tilting cylinder 23 is driven to tilt the lifting beam 22 out of or into the transport vehicle 10. After the tilting column 21 tilts the lifting beam 22 out of the transport vehicle 10, the unit bracket 40 or other heavy objects can be fixed on the lifting beam 22. Then the tilting column 21 tilts the lifting beam 22 into the transport vehicle 10. The unit bracket 40 or other heavy objects are lifted by the lifting beam 22 to complete the lifting process. Finally, the unit bracket 40 or other heavy objects can be placed on the transport vehicle 10.

[0037] like Figure 1 , Figure 3 As shown, the tilting cylinder 23 is provided on both sides of the tilting column 21 so that the lifting beam 22 can be tilted out of or into the transport vehicle 10 from both sides, meeting the loading and unloading needs of both sides.

[0038] like Figure 1 , Figure 3 As shown, the tilting lifting gantry also includes a base 24, which is fixedly mounted on the transport vehicle 10. The bottom ends of the tilting column 21 and the tilting cylinder 23 are rotatably mounted on the base 24. Specifically, a bottom connecting plate 28 can be vertically mounted on the base 24, and a rotating shaft for mounting the tilting column 21 and the tilting cylinder 23 is provided between the two bottom connecting plates 28, so that the bottom ends of the tilting column 21 and the tilting cylinder 23 are rotatably mounted on the base 24.

[0039] like Figure 1 , Figure 3As shown, a hydraulic cylinder connecting plate 27 is fixedly installed on the upper side of the tilting column 21, and the upper end of the tilting hydraulic cylinder 23 is rotatably connected to the hydraulic cylinder connecting plate 27; similar to the bottom connecting plate 28, a rotating shaft for installing the tilting column 21 is provided between the two hydraulic cylinder connecting plates 27, so that the upper end of the tilting hydraulic cylinder 23 is rotatably connected to the hydraulic cylinder connecting plate 27; the hydraulic cylinder connecting plate 27 can be rotatably connected in the shape of an isosceles triangle, wherein the two base corners of the triangle are respectively connected to two tilting hydraulic cylinders, and the apex corner and the body of the triangle are fixedly installed on the... The upper side of the tilting column 21; the upper end of the tilting cylinder 23 is rotatably mounted on both sides of the tilting column 21 by the cylinder connecting plate 27. The tilting cylinder 23 can be tilted or parallel to the tilting column 21. When the tilting cylinder 23 is tilted, the upper end of the tilting cylinder 23 can tilt towards the tilting column 21 or away from the tilting column 21. A certain distance is provided between the tilting cylinder 23 and the tilting column 21 to prevent interference between the tilting column 21 and the tilting cylinder 23 when the tilting column 21 is tilted.

[0040] like Figure 3 As shown, the tilting column 21 is equipped with a lifting column 25 and a lifting cylinder 26. The lifting cylinder 26 drives the lifting column 25 to rise and fall within the tilting column 21. The bottom end of the lifting cylinder 26 is fixedly connected to the tilting column 21, and the top end of the lifting cylinder 26 is fixedly connected to the lifting column 25. The lifting beam 22 is located at the top of the lifting column 25. When the lifting column 25 rises and falls within the tilting column 21, it will drive the lifting beam 22 to rise and fall relative to the tilting column 21. The rise and fall of the lifting beam 22 is beneficial to increase the lifting distance and expand the maximum size of the heavy objects that can be lifted. Moreover, when the heavy object is lifted onto the transport vehicle 10, the falling of the lifting beam 22 can press the heavy object firmly onto the transport vehicle 10, ensuring transportation safety.

[0041] like Figure 1 , Figure 2 As shown, the lifting beam 22 rotates relative to the tilting column 21. In conjunction with the above, the lifting beam 22 is rotatably mounted on the top of the lifting column 25. The lifting beam 22 is equipped with a lifting frame and / or lifting ring to facilitate the fixing of heavy objects.

[0042] like Figures 1-4As shown, the transport vehicle 10 is equipped with telescopic outriggers 11 and outrigger cylinders 12 for driving the telescopic outriggers 11 to extend and retract. The telescopic outriggers 11 are used to support the ground downwards to stabilize the vehicle body. There can be four telescopic outriggers 11, which are located at the four corners of the transport vehicle 10 to ensure stability during lifting. Specifically, the transport vehicle 10 is equipped with a fixed outer cylinder 13, which is fixedly mounted on the transport vehicle 10 and faces outwards. In conjunction with the above, the fixed outer cylinder 13 can be fixedly mounted on the base 24. In conjunction with the above, two fixed outer cylinders 13 are stacked at both the front and rear ends of the transport vehicle 10, and the two fixed outer cylinders 13 at the same end face opposite directions. In conjunction with the above, the fixed outer cylinder 13 located at the front end of the transport vehicle 10 is located on the front side of the tilting and lifting gantry, and the fixed outer cylinder 13 located at the rear end of the transport vehicle 10 is located on the front side of the tilting and lifting gantry. 3. Located on the rear side of the tilting and lifting gantry frame; the fixed outer cylinder 13 is equipped with a telescopic cylinder 14 and a horizontal cylinder 15. The outrigger cylinder 12 is fixedly installed at the end of the telescopic cylinder 14. The horizontal cylinder 15 drives the telescopic cylinder 14 to extend and retract within the fixed outer cylinder 13. One end of the horizontal cylinder 15 is fixedly installed within the fixed outer cylinder 13, and the other end of the horizontal cylinder 15 is fixedly installed within the telescopic cylinder 14. In this way, the telescopic outrigger 11 can be driven by the telescopic cylinder 14 to extend towards the outside of the transport vehicle 10, increasing the support points of the entire vehicle and helping to enhance the stability during lifting.

[0043] like Figure 2 , Figure 6 As shown, the rail-mounted unit support transport flatbed of this utility model also includes a hydraulic control system. The hydraulic control system includes a control valve 31 and a hydraulic lock 32. The control valve 31 and the hydraulic lock 32 control the extension and retraction of the cylinders through hydraulic oil. The control range of the control valve 31 and the hydraulic lock 32 includes the aforementioned tilting cylinder 23, lifting cylinder 26, outrigger cylinder 12, and horizontal cylinder 15. The hydraulic lock 32 is provided between the cylinders and the control valve 31 to lock the extension and retraction state of the cylinders. Due to the low load, a separate hydraulic lock 32 may not be provided between the control valve 31 and the horizontal cylinder 15. Preferably, the hydraulic control system uses emulsion in the external tunnel as a power source and uses emulsion as hydraulic oil, so that the transport flatbed of this utility model does not need to be equipped with a power system, simplifying the overall structure and reducing the cost.

[0044] like Figure 5 As shown, Figure 5 This is a schematic diagram of the status of the rail-mounted unit support transport flatbed cart when transporting the unit support at position 40.

[0045] This utility model discloses a track-type unit support transport flatbed cart. The transport cart 10 is equipped with a tilting lifting gantry. Through tilting and lifting, it can complete the mechanized hoisting and transporting of unit supports 40 or other heavy objects in narrow aisles. It has a simple structure, high safety, and is economical and practical. The tilting lifting gantry can realize the lifting and tilting of the lifting beam 22. The lifting beam 22 is used to tilt the unit support 40 or heavy objects to the middle of the transport cart 10, and then the lifting beam 22 is used to press the transported objects, which can realize the hoisting function of heavy objects. The tilting lifting gantry can tilt to the left and right sides to meet the loading and unloading requirements of both sides of the aisle. The transport cart 10 is equipped with four telescopic and vertical extension mechanisms. The retractable outriggers ensure stability during lifting; the wheelbase of the transport vehicle 10 is adjustable to adapt to the needs of tunnels with different turning radii; the hydraulic control system enables mechanized lifting and support operations; the transport vehicle 10 is adaptable to narrow tunnels, has a large lifting range within the tunnel, and is flexible in lifting position and can lift large weights, meeting the lifting needs of various scenarios; the equipment itself does not require a power system, resulting in low cost. It realizes the lifting, loading, unloading, and transportation of unit supports 40 or heavy objects in tunnels using rail transport, and can move along the rail to the position where lifting is required. It is flexible, mobile, simple, and reliable, which can greatly reduce the difficulty of manual loading and unloading of materials and reduce the intensity of manual labor.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A rail-mounted unit support handling platform, characterized by, The utility model provides a kind of transport vehicle (10) and the turnover hoist gantry for being arranged on the transport vehicle (10), the turnover hoist gantry includes turnover column (21) and is arranged on the lifting beam (22) of turnover column (21) top, the bottom of turnover column (21) is opposite rotation with the transport vehicle (10), the side of turnover column (21) is equipped with turnover cylinder (23), and turnover column (21) is driven to drive the lifting beam (22) to overturn out or overturn into the transport vehicle (10) by turnover cylinder (23).

2. The rail-mounted unit support hauler platform of claim 1, wherein, The turnover cylinder (23) is arranged on both sides of the turnover column (21), so that the lifting beam (22) can be turned out or turned into the transport vehicle (10) from both sides of the transport vehicle (10).

3. A rail-mounted unit-handling platform truck according to claim 1 or 2, characterized in that, The turnover hoist gantry further includes a base (24) fixedly arranged on the transport vehicle (10), and the bottom of the turnover column (21) and the turnover cylinder (23) is rotatably arranged on the base (24).

4. The rail-mounted cell support hauler platform of claim 1 or 2, wherein, The upper side of the turnover column (21) is fixedly provided with a cylinder connecting plate (27), and the upper end of the turnover cylinder (23) is rotatably connected with the cylinder connecting plate (27).

5. The rail-mounted cell support hauler truck of claim 1, wherein, The turnover column (21) is provided with a lifting column (25) and a lifting cylinder (26) therein, the lifting cylinder (26) drives the lifting column (25) to lift in the turnover column (21), and the lifting beam (22) is arranged at the top of the lifting column (25).

6. The rail-mounted cell support hauler platform of claim 1 or 5, wherein, The lifting beam (22) is rotatably connected with the turnover column (21), and the lifting beam (22) is provided with a lifting frame and / or a lifting ring.

7. The rail-mounted cell support hauler truck of claim 1, wherein, The transport vehicle (10) is provided with a fixed outer cylinder (13), the fixed outer cylinder (13) is provided with a telescopic cylinder (14) and a horizontal cylinder (15) therein, the horizontal cylinder (15) drives the telescopic cylinder (14) to extend or retract in the fixed outer cylinder (13), the end of the telescopic cylinder (14) is provided with a supporting leg cylinder (12), the bottom of the supporting leg cylinder (12) is provided with a telescopic supporting leg (11), and the telescopic supporting leg (11) is used for supporting the ground to stabilize the vehicle body.

8. The rail-mounted unit-handling flatbed vehicle of claim 1 or 5 or 7, wherein, The utility model further includes a hydraulic control system, the hydraulic control system includes a control valve (31) and a hydraulic lock (32), the control valve (31) and the hydraulic lock (32) control the extension and retraction of the cylinder by hydraulic oil.

9. The rail-mounted cell support hauler platform of claim 8, wherein, The hydraulic control system uses externally connected emulsion as the hydraulic oil.

10. The rail-mounted cell support hauler truck of claim 1, wherein, The transport vehicle (10) includes three or more than three wheel pair mounting positions (16) to realize the adjustable wheelbase function of the transport vehicle (10).

Citation Information

Patent Citations

  • Mining stack type support carrier

    CN217732584U