Modular dolly with interchangeable rear frame

Abstract

The application relates to a modularized support carrier with an interchangeable rear frame, which comprises a rear frame mechanism, a U-shaped front frame, side middle frames, side rear frames and a first quick-release fixing assembly; the two ends of the U-shaped front frame are connected with one side middle frame respectively; the ends, away from the U-shaped front frame, of the two side middle frames are connected with the side rear frames; wherein the U-shaped front frame and the side middle frames are detachably connected through the first quick-release fixing assembly; and a front frame is connected with the U-shaped front frame through a towing connecting piece and a pin shaft, and is used for driving the rear frame mechanism to move. The technical scheme can realize the adaptive transportation of different center-distance hydraulic supports through the modularized interchangeable rear frame and the quick-release structure, reduce equipment investment and idling, improve the utilization rate and shorten the construction preparation period.

Description

Technical Field

[0001] This application relates to the field of underground coal mine transportation technology, and in particular to a modular support transport vehicle with an interchangeable rear frame. Background Technology

[0002] In underground coal mining operations, hydraulic supports are core equipment ensuring mining safety and efficiency. Their handling places extremely high demands on the reliability and adaptability of auxiliary transportation equipment. Support transport vehicles, as key equipment specifically designed for the transfer of hydraulic supports, must achieve stable transportation of hydraulic supports of different specifications in the complex underground environment, directly impacting the construction progress and operational safety of coal mining. With the development of coal mining technology, the requirements for the center-distance specifications of hydraulic supports under different coal seam conditions are becoming increasingly diverse.

[0003] In existing technologies, the rear frame assembly and front frame assembly of support transport vehicles are mostly fixedly connected structures, and the dimensions of the rear frame cannot be flexibly adjusted once determined. This structural design results in a relatively limited function for a single support transport vehicle, only suitable for transporting hydraulic supports with specific center distances. When faced with hydraulic supports of different specifications with center distances such as 2.4 meters and 2.05 meters, existing equipment is incompatible due to the size limitations of the rear frame, requiring multiple transport vehicles of different specifications. This not only increases equipment investment costs but also leads to high equipment idle rates. At the same time, the specialized nature of the equipment limits its reuse under different working conditions, resulting in a shortage of underground equipment resources, extended construction preparation cycles, and difficulty in meeting the needs of efficient and economical coal mining transportation.

[0004] Therefore, it is necessary to improve one or more of the problems existing in the above-mentioned related technical solutions.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this application is to provide a modular support transport vehicle with an interchangeable rear frame, thereby overcoming, at least to some extent, one or more problems caused by the limitations and defects of related technologies.

[0007] To achieve the objectives of this application, the following technical solution is provided:

[0008] This application provides a modular support transport vehicle with an interchangeable rear frame, comprising:

[0009] The rear frame mechanism includes a U-shaped front frame, a side middle frame, a side rear frame, and a first quick-release fixing assembly; each end of the U-shaped front frame is connected to one of the side middle frames; the ends of the two side middle frames away from the U-shaped front frame are connected to the side rear frame; wherein the U-shaped front frame and the side middle frames are detachably connected by the first quick-release fixing assembly.

[0010] The front frame is connected to the U-shaped front frame pin via a drag connector, and is used to drive the rear frame mechanism to move.

[0011] In one possible implementation, the side frame includes a side frame body and a connecting through hole;

[0012] The connecting through hole is located at the center of the side frame body and is used for fixed connection with the support to be transported.

[0013] In one possible implementation, the U-shaped front frame includes a U-shaped front frame body;

[0014] Both ends of the U-shaped front frame body have first mounting holes, and the first mounting end of the side frame body has a second mounting hole, with the first mounting hole corresponding to the second mounting hole;

[0015] The first mounting end of the side frame body is sleeved on one end of the U-shaped front frame body, and the first mounting hole is aligned with the second mounting hole, and can be detachably connected by the first quick-release fixing component.

[0016] In one possible implementation, the U-shaped front frame further includes a first protective cover; the first protective cover is fixedly mounted on the U-shaped front frame body and is used to cover and protect the first quick-release fixing assembly.

[0017] In one possible implementation, the first quick-release fixing assembly includes a second fixing member and a third fixing member;

[0018] The second fastener penetrates the first mounting end of the side frame body and is fixed to the side wall of the first mounting end, for fixing the U-shaped front frame body sleeved in the first mounting end to the side frame body;

[0019] The third fastener passes through the side wall of the first mounting end of the side frame body and the side wall of the U-shaped front frame body to enhance the fixing effect between the side frame body and the U-shaped front frame body.

[0020] In one possible implementation, the outer side of the main body of the side frame has a first fixing member at the edge position on the same vertical line as the connecting through hole, for fixing to the hydraulic support to be transported that passes through the connecting through hole.

[0021] In one possible implementation, the side rear frame includes a side rear frame body and a second protective cover;

[0022] The side rear frame body is sleeved on the second mounting end of the side middle frame body and can be detachably connected by the second quick-release fixing component;

[0023] The second protective cover is fixedly mounted on the side rear frame body to cover and protect the second quick-release fixing assembly.

[0024] In one possible implementation, the rear frame mechanism further includes a traveling mechanism disposed on the two side frames for driving the rear frame mechanism to move when the rear frame mechanism is subjected to tension.

[0025] In one possible implementation, the front frame includes a power unit, wheels, a control room, an oil tank, and a water tank;

[0026] The power unit has two output ends, which are connected to the two walking wheels to drive the walking wheels to rotate; the control room is located on the power unit and connected to the power unit to control the operation of the power unit; the oil tank and water tank are located on the power unit to provide fuel and cooling water to the power unit.

[0027] In one possible implementation, the towing connector includes: a first connector and a second connector; the first connector is disposed at the front end of the U-shaped front frame, and the second connector is disposed at the rear end of the front frame, and the first connector and the second connector are connected by a pin.

[0028] The technical solution provided in this application may include the following beneficial effects:

[0029] This application features a modular support transport vehicle with an interchangeable rear frame. Through a detachable connection design between the U-shaped front frame and the side frame using a first quick-release fixing component, it enables the transport of hydraulic supports with different center distances, such as 2.4 meters and 2.05 meters, solving the problem of existing fixed rear frame dimensions being incompatible with supports of different specifications. Furthermore, the modular interchangeable structure of the rear frame allows for flexible replacement of the rear frame on a single unit to adapt to different working conditions, reducing investment in dedicated equipment, lowering equipment idle rates, and addressing the resource waste caused by the single function of existing equipment. Simultaneously, the quick-release fixing component enables rapid disassembly and assembly of the rear frame, shortening the construction preparation cycle, alleviating the shortage of underground equipment resources, meeting the needs of efficient transportation, and solving the construction delay problem caused by the inconvenience of replacing existing equipment. Attached Figure Description

[0030] Figure 1This illustration shows a structural schematic diagram of a modular support transport vehicle with an interchangeable rear frame, as shown in an exemplary embodiment of this application.

[0031] Figure 2 This illustration shows a top view of a modular support transport vehicle with an interchangeable rear frame, as shown in an exemplary embodiment of this application.

[0032] Figure 3 This illustration shows a structural diagram of a modular support transporter trailer with an interchangeable rear frame and a front frame, as shown in an exemplary embodiment of this application.

[0033] Figure 4 This illustration shows a structural schematic diagram of the rear frame of a modular support transport vehicle with an interchangeable rear frame, as shown in an exemplary embodiment of this application.

[0034] Figure 5 This illustration shows a structural schematic diagram of a U-shaped front frame of a modular support transporter with an interchangeable rear frame, as shown in an exemplary embodiment of this application.

[0035] Figure 6 This illustration shows a structural schematic diagram of a modular support transporter side frame with an interchangeable rear frame, as shown in an exemplary embodiment of this application.

[0036] Figure label:

[0037] 100. Rear frame mechanism; 110. U-shaped front frame; 111. U-shaped front frame body; 112. First protective cover; 113. Anti-slip plate; 120. Side middle frame; 121. Side middle frame body; 122. Connecting through hole; 123. First fixing component; 130. Side rear frame; 131. Side rear frame body; 132. Second protective cover; 140. First quick-release fixing assembly; 141. Second fixing component; 142. Third fixing component; 150. Walking mechanism;

[0038] 200. Towing connector; 210. First connector; 220. Second connector;

[0039] 300. Front frame; 310. Power unit; 320. Wheels; 330. Control room; 340. Fuel tank; 350. Water tank. Detailed Implementation

[0040] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0041] Furthermore, the accompanying drawings are merely illustrative of this application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore, repeated descriptions of them will be omitted.

[0042] This example embodiment first provides a modular support transport vehicle with an interchangeable rear frame. (See reference...) Figure 1 As shown, the modular support transport vehicle with an interchangeable rear frame includes a rear frame mechanism 100, a towing connector 200, and a front frame 300.

[0043] The rear frame mechanism 100 includes a U-shaped front frame 110, a side middle frame 120, a side rear frame 130, and a first quick-release fixing assembly 140. Each end of the U-shaped front frame 110 is connected to one of the side middle frames 120. The ends of the two side middle frames 120 furthest from the U-shaped front frame 110 are connected to the side rear frame 130. The U-shaped front frame 110 and the side middle frames 120 are detachably connected via the first quick-release fixing assembly 140.

[0044] The front frame 300 is connected to the U-shaped front frame 110 via a drag connector 200, and is used to drive the rear frame mechanism 100 to move.

[0045] The modular support transport vehicle with interchangeable rear frames described above enables the U-shaped front frame 110 and the side frame 120 in the rear frame mechanism 100 to be detachably connected via the first quick-release fixing component 140. This provides a core foundation for the modular interchangeability of the rear frame mechanism 100. The side frame 120 can be quickly replaced according to the different center distances of the hydraulic supports to be transported, such as 2.4 meters and 2.05 meters. The front frame 300 is connected to the U-shaped front frame 110 via the pin of the towing connector 200. This ensures the stable traction of the front frame 300 on the rear frame mechanism 100 and allows the rotation characteristics of the pin to adapt to the angle changes of complex underground road surfaces, ensuring the reliability of the overall movement.

[0046] In one embodiment, the side frame 120 includes a side frame body 121 and a connecting through hole 122;

[0047] The connecting through hole 122 is located at the center of the side frame body 121 and is used for fixed connection with the support to be transported.

[0048] It should be noted that the connecting through hole 122 of the side frame 120 is located at the center of the side frame body 121. This position design ensures that the center of gravity of the support to be transported is consistent with the bearing center of the side frame body 121, effectively reducing the risk of the rear frame mechanism 100 shaking due to the shift of the center of gravity during transportation. The support to be transported can be initially fixed to the side frame 120 by fasteners such as bolts passing through the connecting through hole 122, laying the foundation for subsequent secondary reinforcement.

[0049] In one embodiment, the U-shaped front frame 110 includes a U-shaped front frame body 111;

[0050] Both ends of the U-shaped front frame body 111 have first mounting holes, and the first mounting end of the side frame body 121 has a second mounting hole, with the first mounting hole corresponding to the second mounting hole;

[0051] The first mounting end of the side frame body 121 is sleeved on one end of the U-shaped front frame body 111, and the first mounting hole is aligned with the second mounting hole and can be detachably connected by the first quick-release fixing component 140.

[0052] It should be noted that the first mounting holes at both ends of the U-shaped front frame body 111 correspond precisely to the second mounting holes at the first mounting ends of the side frame body 121. The sleeve structure of the first mounting end of the side frame body 121 fitted onto one end of the U-shaped front frame body 111 significantly increases the contact area between the two and greatly improves the connection strength. After the first mounting holes and the second mounting holes are aligned, they can be detachably connected through the first quick-release fixing component 140, which not only ensures the connection accuracy but also provides convenience for the quick replacement of side frames 120 of different specifications.

[0053] Optionally, anti-slip plates 113 are provided at both bends of the U-shaped front frame body 111.

[0054] It is understood that the anti-slip plate 113 can be made of wear-resistant rubber and is fixedly attached to the two bends of the U-shaped front frame body 111. This can increase the friction between the U-shaped front frame body 111 and the support to be transported, effectively preventing relative slippage. Especially when the underground road surface is bumpy or the equipment is tilted, it can further improve the overall stability of the U-shaped front frame 110 structure.

[0055] Furthermore, the U-shaped front frame 110 also includes a first protective cover 112; the first protective cover 112 is fixedly mounted on the U-shaped front frame body 111 and is used to cover the first quick-release fixing assembly 140 for protection.

[0056] It should be noted that the first protective cover 112 of the U-shaped front frame 110 is fixed on the main body 111 of the U-shaped front frame, and its coverage area completely covers the first quick-release fixing component 140. It can effectively prevent dust, slag and other debris in the coal mine from entering the connection gap of the first quick-release fixing component 140, and at the same time avoid damage to the first quick-release fixing component 140 caused by collisions during transportation or operation, thus ensuring its long-term stable quick-release function.

[0057] In one embodiment, the first quick-release fixing assembly 140 includes a second fixing member 141 and a third fixing member 142;

[0058] The second fastener 141 penetrates the first mounting end of the side frame body 121 and is fixed to the side wall of the first mounting end, for fixing the U-shaped front frame body 111 sleeved in the first mounting end to the side frame body 121.

[0059] The third fastener 142 passes through the side wall of the first mounting end of the side frame body 121 and the side wall of the U-shaped front frame body 111 to enhance the fixing effect between the side frame body 121 and the U-shaped front frame body 111.

[0060] It should be noted that the second fastener 141 of the first quick-release fastening assembly 140 penetrates the first mounting end of the side frame body 121 and is fixed to the side wall, thereby achieving longitudinal fastening between the U-shaped front frame body 111 and the side frame body 121; the third fastener 142 passes through the side walls of both, improving the connection's resistance to loosening and meeting the structural strength requirements during heavy-duty transportation.

[0061] In one embodiment, the outer side of the side frame body 121 has a first fixing member 123 located at the edge position on the same vertical line as the connecting through hole 122, for fixing to the hydraulic support to be transported that passes through the connecting through hole 122.

[0062] It should be noted that the first fixing member 123 on the outer side of the side frame body 121 and the connecting through hole 122 are located on the same vertical edge. When the hydraulic support to be transported passes through the connecting through hole 122, the first fixing member 123 can reinforce the support from the outside, further restricting the displacement of the support in the horizontal and vertical directions. The first fixing member 123 can be set as an adjustable structure to adapt to the fixing requirements of supports of different widths.

[0063] In one embodiment, the side rear frame 130 includes a side rear frame body 131 and a second protective cover 132;

[0064] The side rear frame body 131 is sleeved on the second mounting end of the side middle frame body 121 and can be detachably connected by the second quick-release fixing component;

[0065] The second protective cover 132 is fixedly mounted on the side rear frame body 131 and is used to cover the second quick-release fixing assembly for protection.

[0066] It should be noted that the side rear frame body 131 of the side rear frame 130 is sleeved on the second mounting end of the side middle frame body 121. The modular design ensures the consistency of the overall structure of the rear frame. The detachable connection achieved by the second quick-release fixing component facilitates the quick assembly and disassembly of the side rear frame 130. The second protective cover 132 protects the second quick-release fixing component, reducing the corrosion of the quick-release components by the external environment and extending their service life.

[0067] In one embodiment, the rear frame mechanism 100 further includes a traveling mechanism 150 disposed on the two side frames 120, for driving the rear frame mechanism 100 to move when the rear frame mechanism 100 is subjected to tension.

[0068] It should be noted that, optionally, the walking mechanism 150 of the rear frame mechanism 100 is symmetrically arranged on the two side frames 120, which can evenly distribute the weight of the rear frame mechanism 100 and the support it carries; when the rear frame mechanism 100 is subjected to the tension of the front frame 300, the walking mechanism 150 can convert sliding friction into rolling friction or track transmission friction, greatly reducing the moving resistance, making the rear frame mechanism 100 move more smoothly and effortlessly on the uneven surface of the underground mine.

[0069] In one embodiment, the front frame 300 includes a power unit 310, wheels 320, a control room 330, an oil tank 340, and a water tank 350;

[0070] The power unit 310 has two output ends, which are connected to the two walking wheels 320 to drive the walking wheels 320 to rotate; the control room 330 is installed on the power unit 310 and connected to the power unit 310 to control the operation of the power unit 310; the oil tank 340 and the water tank 350 are installed on the power unit 310 to provide fuel and cooling water to the power unit 310.

[0071] It should be noted that, optionally, the front frame 300 is the power unit of a common support transport vehicle in the prior art; specifically, the power unit 310 of the front frame 300 can be a diesel engine or explosion-proof motor that meets the explosion-proof requirements of underground coal mines, and its output end is connected to two traveling wheels 320 to provide the equipment with the power to move; the surface of the traveling wheels 320 can be provided with anti-slip texture to enhance the grip; the control device in the control room 330 can control the operation of the power unit 310 in real time, and the fuel tank 340 and water tank 350 continuously provide fuel and cooling water to the power unit 310 to ensure the endurance of the equipment.

[0072] In one embodiment, the towing connector 200 includes a first connector 210 and a second connector 220; the first connector 210 is disposed at the front end of the U-shaped front frame 110, and the second connector 220 is disposed at the rear end of the front frame 300, and the first connector 210 and the second connector 220 are connected by a pin.

[0073] It should be noted that the first connector 210 of the towing connector 200 is located at the front end of the U-shaped front frame 110, and the second connector 220 is located at the rear end of the front frame 300. The structure of the two connected by a pin is simple and has a strong load-bearing capacity. The fit clearance between the pin and the connector is precisely designed to ensure flexible rotation during towing to adapt to road conditions, and to avoid excessive shaking that could cause wear on the first connector 210 and the second connector 220, thus ensuring stable traction of the front frame 300 to the rear frame mechanism 100.

[0074] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0075] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0076] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0077] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0079] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention filed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not claimed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the appended claims.

Claims

1. A modular support transport vehicle with an interchangeable rear frame, characterized in that, include: The rear frame mechanism includes a U-shaped front frame, a side middle frame, a side rear frame, and a first quick-release fixing assembly; each end of the U-shaped front frame is connected to one of the side middle frames; the ends of the two side middle frames away from the U-shaped front frame are connected to the side rear frame; wherein the U-shaped front frame and the side middle frames are detachably connected by the first quick-release fixing assembly. The front frame is connected to the U-shaped front frame pin via a drag connector, and is used to drive the rear frame mechanism to move.

2. The modular support transport vehicle with an interchangeable rear frame according to claim 1, characterized in that, The side frame includes a side frame body and a connecting through hole; The connecting through hole is located at the center of the side frame body and is used for fixed connection with the support to be transported.

3. The modular support transport vehicle with an interchangeable rear frame according to claim 2, characterized in that, The U-shaped front frame includes a U-shaped front frame body; Both ends of the U-shaped front frame body have first mounting holes, and the first mounting end of the side frame body has a second mounting hole, with the first mounting hole corresponding to the second mounting hole; The first mounting end of the side frame body is sleeved on one end of the U-shaped front frame body, and the first mounting hole is aligned with the second mounting hole, and can be detachably connected by the first quick-release fixing component.

4. The modular support transport vehicle with an interchangeable rear frame according to claim 3, characterized in that, The U-shaped front frame also includes a first protective cover; the first protective cover is fixedly mounted on the main body of the U-shaped front frame and is used to cover the first quick-release fixing assembly for protection.

5. The modular support transport vehicle with an interchangeable rear frame according to claim 3, characterized in that, The first quick-release fixing assembly includes a second fixing member and a third fixing member; The second fastener penetrates the first mounting end of the side frame body and is fixed to the side wall of the first mounting end, for fixing the U-shaped front frame body sleeved in the first mounting end to the side frame body; The third fastener passes through the side wall of the first mounting end of the side frame body and the side wall of the U-shaped front frame body to enhance the fixing effect between the side frame body and the U-shaped front frame body.

6. The modular support transport vehicle with an interchangeable rear frame according to claim 2, characterized in that, On the outer side of the main body of the side frame, at the edge position on the same vertical line as the connecting through hole, there is a first fixing member for fixing to the hydraulic support to be transported that passes through the connecting through hole.

7. The modular support transport vehicle with an interchangeable rear frame according to claim 3, characterized in that, The side rear frame includes a side rear frame body and a second protective cover; The side rear frame body is sleeved on the second mounting end of the side middle frame body and can be detachably connected by the second quick-release fixing component; The second protective cover is fixedly mounted on the side rear frame body to cover and protect the second quick-release fixing assembly.

8. The modular support transport vehicle with an interchangeable rear frame according to claim 1, characterized in that, The rear frame mechanism also includes a traveling mechanism, which is mounted on the two side frames and is used to drive the rear frame mechanism to move when it is subjected to tension.

9. The modular support transport vehicle with an interchangeable rear frame according to claim 1, characterized in that, The front frame includes a power unit, wheels, control room, fuel tank, and water tank; The power unit has two output ends, which are connected to the two walking wheels to drive the walking wheels to rotate; the control room is located on the power unit and connected to the power unit to control the operation of the power unit; the oil tank and water tank are located on the power unit to provide fuel and cooling water to the power unit.

10. The modular support transport vehicle with an interchangeable rear frame according to claim 1, characterized in that, The towing connector includes a first connector and a second connector; the first connector is disposed at the front end of the U-shaped front frame, and the second connector is disposed at the rear end of the front frame, and the first connector and the second connector are connected by a pin.

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