Monorail crane vehicle multifunctional working platform

Abstract

The utility model discloses a monorail crane vehicle multifunctional working platform relates to multifunctional working platform technical field, including support dolly, big platform subassembly, small platform subassembly and rotating folding arm, the support dolly is frame type structure, big platform subassembly is connected with the base front end through first hinged axle, rotating folding arm is connected with the base rear end through slewing mechanism, rotating folding arm includes first short arm, second short arm and long arm, first short arm and second short arm are rectangular tube structure all, the long arm is rectangular tube structure of bigger cross section, one end of first short arm and second short arm is hinged with the both ends of long arm through first connecting shaft respectively, the other end of long arm is connected with slewing mechanism output end through second connecting shaft, big platform subassembly, small platform subassembly and rotating folding arm are folded and are pasted in support dolly top under non -operating state, and are unfolded under operating state.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a multi-functional working platform for a monorail crane. Background Technology

[0002] In underground tunnel construction in coal mines and other similar projects, monorail cranes undertake core tasks such as material transportation and equipment installation. However, the limitations of their accompanying work platforms severely restrict operational efficiency and safety. Traditional work platforms are mostly designed with a "one-size-fits-all" approach, providing only basic standing functionality and failing to meet diverse needs such as advanced support for the tunneling head (requiring the transport of heavy equipment like guide rails and anchor drilling rigs) and tunnel maintenance (requiring frequent tool retrieval). While some platforms have attempted to expand their functionality, the following prominent problems remain: First, there is a significant conflict between functional integration and spatial adaptability. In order to accommodate multiple devices, the platform size has been forced to increase, resulting in it occupying more than 1.2m of roadway height when not in operation, making it impossible to pass through low roadways (such as some old mine roadways with a height of only 1.1m). Secondly, the working range of robotic arms is limited. Traditional robotic arms are mostly fixed in length or extend in one direction, with a maximum extension length of less than 3m and a rotation angle that only supports ±45°. This makes it difficult to cover working points such as the top of the tunnel (4-5m in height) and the side walls (2-3m in horizontal distance), requiring frequent repositioning of the machine and increasing working time. Third, insufficient stability poses safety hazards. When the robotic arm applies significant force (such as the reaction force of 20kN during drilling with an anchor bolt drill), the platform is only secured by the four wheel sets of the supporting trolley, making it prone to tipping over due to uneven force distribution. Traditional guardrails, with a height of only 1m, are insufficient to effectively prevent falls. Fourth, poor compatibility affects versatility. Different models of monorail locomotives (such as two-wheel drive electric, pneumatic, and diesel engine driven) have significantly different interface standards (such as guide rail spacing and connecting bolt size). The platform and locomotive need to be customized and modified, and re-adjustment is required when changing models, which seriously affects the continuity of operation. Utility Model Content

[0003] The purpose of this utility model is to provide a multi-functional work platform for a monorail crane. In this device, through the cooperation between the monorail crane, the multi-functional work platform, and the rotating folding arm, it is effectively applicable to tunnel pre-support, equipment maintenance, and material transfer. By changing the size of the work platform, it can effectively transfer materials as needed. At the same time, it can also effectively cope with different working environments, thereby solving the problems mentioned in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A multi-functional working platform for a monorail crane includes a support trolley, a large platform assembly, a small platform assembly, and a rotating folding arm. The support trolley has a frame structure with a set of wheels at the bottom that match the guide rails of the monorail crane, and a horizontally extending base at the top. The large platform assembly is connected to the front end of the base via a first hinge shaft, and the small platform assembly is connected to the middle of the base via a second hinge shaft. The rotating folding arm is connected to the rear end of the base via a slewing mechanism. The rotating folding arm includes a first short arm, a second short arm, and a long arm. The first and second short arms are both rectangular tube structures, and the long arm is a rectangular tube structure with a larger cross-section. One end of the first and second short arms is hinged to both ends of the long arm via a first connecting shaft, and the other end of the long arm is connected to the output end of the slewing mechanism via a second connecting shaft. The large platform assembly, the small platform assembly, and the rotating folding arm are folded and fitted against the top of the support trolley in the non-operating state, and unfolded in the operating state. As a further technical solution of this utility model, the supporting trolley includes a frame, a set of wheels, and a connecting interface; the frame is a frame structure welded from rectangular steel pipes, with two sets of wheels on each side of the bottom, each set of wheels including a driving wheel and a driven wheel, the driving wheel being driven by a motor; the connecting interface is located on the top of the frame, including a U-shaped groove matching the front crossbeam of the monorail crane locomotive and a quick-locking bolt, rubber buffer pads on both sides of the U-shaped groove, and the locking bolt threadedly connecting the frame to the locomotive crossbeam; the front end of the frame also has a hydraulic cylinder mounting position, which is used to fix the hydraulic cylinder that drives the lifting and lowering of the large platform component; As a further technical solution of this utility model, the slewing mechanism of the rotating folding arm includes a slewing bearing, a gearbox, and a drive motor; the inner ring of the slewing bearing is fixedly connected to the flange at the rear end of the base, and the outer ring is fixedly connected to the second connecting shaft of the long arm; the gearbox is fixed in the middle of the long arm, the input end is connected to the output shaft of the drive motor, and the output end meshes with the outer ring of the slewing bearing through a gear set; the maximum extension length of the long arm is 4.5m or 2.8m; As a further technical solution of this utility model, the large platform component includes a large platform body, a storage compartment, and an equipment fixing area; the large platform body is a rectangular frame structure with dimensions of 4m × 1.4m, the frame is filled with anti-slip steel plates, and the edges are equipped with foldable guardrails with a height of 1.2m; the storage compartment is located at the bottom of the large platform body and includes 5 standard guide rail slots, 5 hanging component assembly brackets, and 1 portable anchor drilling rig fixing position; the equipment fixing area is located at the front end of the large platform body and includes slots for 50 mining mortar anchor bolts, the slots opening upwards and perpendicular to the top of the roadway; As a further technical solution of this utility model, the small platform component includes a small platform body, a toolbox, and casters; the small platform body is a square frame structure with dimensions of 1.4m × 1.4m, and the inside of the frame is lined with an anti-slip mesh plate; the toolbox is located at the bottom of the small platform body and includes 3 drawers (drawer dimensions are 300mm × 200mm × 150mm) and 1 hook area (10 hooks); the casters are located at the four corners of the bottom of the small platform body and include wheel frames, wheel axles, and polyurethane wheels. The wheel frames of the casters are hinged to the small platform body via pins, and the polyurethane wheels have a diameter of 100mm. The casters can be folded up and fitted against the bottom of the small platform body in the working state. As a further technical solution of this utility model, a balance support frame is provided at the front joint of the rotating folding arm; the balance support frame includes a hydraulic push rod, a support plate and an anchor hook; the cylinder of the hydraulic push rod is hinged to the first connecting shaft at the front end of the long arm through a third hinge shaft, and the piston rod end is hinged to the middle of the support plate; the support plate is a rectangular steel plate, and the anchor hook is used to fix it to the roadway floor or roadway side; the oil inlet of the hydraulic push rod is connected to the hydraulic pump station of the support trolley through an oil pipe, and the oil pipe is laid along the inside of the rectangular tube of the rotating folding arm; Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the cooperation between the large platform and the small platform, combined with a folding and storage structure, makes the total height of the platform only 900mm when in walking mode, allowing it to freely pass through low alleys with a height of less than 1.1m; during operation, the large platform unfolds to carry heavy equipment such as 5 standard guide rails and 5 sets of hanging components, while the small platform independently carries tools, realizing the collaborative operation of "large platform for heavy load and small platform for light use", solving the problems of single function and space contradiction of traditional platforms; 2. This utility model consists of a folding arm composed of two short and one long rectangular tubes (and a worm gear reducer), with a maximum extension length of 4.5m. With the help of a rotary mechanism, the robotic arm can be extended to areas such as the top and side walls of the tunnel, covering all scenarios of operation such as advanced support, shotcreting, and drilling; the short arm focuses on tunnel maintenance, and the clear division of labor improves efficiency. 3. In this utility model, the hydraulic push rod type balance support frame at the front joint can be fixed to the roadway ground by anchoring hooks when the force applied by the robot exceeds the bearing capacity of the support trolley, so as to transfer the force to the roadway and prevent the platform from tipping over; together with the 1.2m high foldable guardrail, it provides double protection for the safety of personnel during operation. 4. This utility model features a U-shaped groove connection interface for supporting the trolley and a quick-locking bolt, which can be quickly matched with two-wheel drive electric, pneumatic, and diesel engine monorail locomotives; the hydraulic cylinder mounting position (and the design of the traveling wheel set) further reduces the modification cost when replacing the locomotive and improves the equipment utilization rate. Attached Figure Description

[0005] Figure 1 This is an assembly diagram of the present invention.

[0006] Figure 2 This utility model Figure 1 A schematic diagram of the retracted state of the multi-functional work platform.

[0007] Figure 3 This utility model Figure 2 Side view.

[0008] In the diagram: 1-Support trolley, 2-Large platform assembly, 3-Small platform assembly, 4-Rotating folding arm. Detailed Implementation

[0009] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0010] Please see Figure 1-3 In this embodiment of the utility model, a multi-functional working platform for a monorail crane includes a supporting trolley 1, a large platform assembly 2, a small platform assembly 3, and a rotating folding arm 4. The supporting trolley 1 has a frame structure with a set of wheels at the bottom that match the guide rails of the monorail crane, and a horizontally extending base at the top. The large platform assembly 2 is connected to the front end of the base via a first hinge shaft, and the small platform assembly 3 is connected to the middle of the base via a second hinge shaft. The rotating folding arm 4 is connected to the rear end of the base via a rotary mechanism. The rotating folding arm 4 includes a first short arm, a second short arm, and a long arm. The first and second short arms are both rectangular tube structures, and the long arm is a rectangular tube structure with a larger cross-section. One end of the first and second short arms is hinged to both ends of the long arm via a first connecting shaft, and the other end of the long arm is connected to the output end of the rotary mechanism via a second connecting shaft. The large platform assembly 2, the small platform assembly 3, and the rotating folding arm 4 are folded and fitted against the top of the supporting trolley 1 in the non-operating state, and unfolded in the operating state. The supporting trolley 1 includes a frame, a set of wheels, and a connecting interface. The frame is a frame structure welded from rectangular steel pipes, with two sets of wheels on each side of the bottom. Each set of wheels includes a driving wheel and a driven wheel, with the driving wheel driven by a motor. The connecting interface is located on the top of the frame and includes a U-shaped groove that matches the front crossbeam of the monorail crane and a quick-locking bolt. Rubber buffer pads are provided on both sides of the U-shaped groove, and the locking bolt passes through the frame and is threadedly connected to the crossbeam of the crane. The front end of the frame also has a hydraulic cylinder mounting position, which is used to fix the hydraulic cylinder that drives the lifting and lowering of the large platform component 2.

[0011] By adopting the above technical solution, the cooperation between the large platform and the small platform, combined with the folding and storage structure, makes the total height of the platform only 900mm when it is in motion, which can freely pass through low alleys with a height of less than 1.1m; when working, the large platform unfolds to carry heavy equipment such as 5 standard guide rails and 5 sets of hanging parts, while the small platform carries tools independently, realizing the collaborative operation of "large platform for heavy load and small platform for light use", which solves the problem of the traditional platform's single function and space contradiction. In this embodiment, the rotation mechanism of the rotating folding arm 4 includes a slewing bearing, a gearbox, and a drive motor; the inner ring of the slewing bearing is fixedly connected to the flange at the rear end of the base, and the outer ring is fixedly connected to the second connecting shaft of the long arm; the gearbox is fixed in the middle of the long arm, its input end is connected to the output shaft of the drive motor, and its output end meshes with the outer ring of the slewing bearing through a gear set; the maximum extension length of the long arm is 4.5m or 2.8m. In this embodiment, the large platform component 2 includes a large platform body, a storage compartment, and an equipment fixing area. The large platform body is a rectangular frame structure with dimensions of 4m × 1.4m. The frame is filled with anti-slip steel plates, and the edges are equipped with foldable guardrails with a height of 1.2m. The storage compartment is located at the bottom of the large platform body and includes 5 standard guide rail slots, 5 hanging component assembly brackets, and 1 portable anchor drilling rig fixing position. The equipment fixing area is located at the front end of the large platform body and includes slots for 50 mining mortar anchor bolts. The slots open upwards and are perpendicular to the top of the roadway. By adopting the above technical solution, the folding arm, composed of two short and one long rectangular tubes and a worm gear reducer, has a maximum extension length of 4.5m. With the help of the rotary mechanism, the robotic arm can be extended to areas such as the top and side walls of the tunnel, covering all scenarios of operation such as advanced support, shotcreting, and drilling. The short arm focuses on tunnel maintenance, and the clear division of labor improves efficiency. Furthermore, the small platform component 3 includes a small platform body, a toolbox, and casters; the small platform body is a square frame structure with dimensions of 1.4m × 1.4m, and the inside of the frame is lined with an anti-slip mesh plate; the toolbox is located at the bottom of the small platform body and includes 3 drawers (drawer dimensions are 300mm × 200mm × 150mm) and 1 hook area (10 hooks); the casters are located at the four corners of the bottom of the small platform body and include wheel frames, wheel axles, and polyurethane wheels. The wheel frames of the casters are hinged to the small platform body via pins, and the polyurethane wheels have a diameter of 100mm. The casters can be folded up and fitted against the bottom of the small platform body when in operation. In this embodiment, a balance support frame is provided at the front joint of the rotating folding arm 4; the balance support frame includes a hydraulic push rod, a support plate, and an anchor hook; the cylinder of the hydraulic push rod is hinged to the first connecting shaft at the front end of the long arm through a third hinge shaft, and the piston rod end is hinged to the middle of the support plate; the support plate is a rectangular steel plate, and the anchor hook is used to fix it to the roadway floor or roadway side; the oil inlet of the hydraulic push rod is connected to the hydraulic pump station of the support trolley 1 through an oil pipe, and the oil pipe is laid along the inside of the rectangular tube of the rotating folding arm 4; By adopting the above technical solution, the hydraulic push rod type balance support frame at the front joint can be fixed to the roadway ground through anchor hooks when the force applied by the robot exceeds the bearing capacity of the support trolley, so as to transfer the force to the roadway and prevent the platform from tipping over; together with the 1.2m high foldable guardrail, the safety of personnel is doubly guaranteed. The U-shaped groove connection interface and quick-locking bolts supporting the trolley can be quickly matched with two-wheel drive electric, pneumatic, and diesel engine monorail locomotives; the design of the hydraulic cylinder mounting position and the traveling wheel set further reduces the modification cost when replacing the locomotive and improves the equipment utilization rate. The working principle of this utility model is as follows: The multi-functional work platform comes in two sizes. The large platform has an area of ​​4*1.4m and can carry 5 standard guide rails, 5 sets of hanging assembly, a portable anchor drilling rig, a roadway protection netting and shotcreting device, and 50 mining mortar anchor bolts for advanced support of the tunneling head. The small platform has an area of ​​1.4*1.4m and only carries commonly used tools for maintenance of roadways and guide rail systems.

[0012] The rotating folding boom 4 consists of three rectangular tubes with different cross-sections (two short and one long) and a worm gear reducer. Driven by an electric motor or hydraulic motor, it can extend and retract within the same plane, with maximum extension lengths of 2.8m and 4.5m. A slewing mechanism is installed at the connection point between the folding boom and the work platform support trolley 1, allowing it to rotate freely in space. The long boom is used for laying protective netting in the tunnel, shotcreting, drilling, installing anchor bolts, and assemblies for hanging components and guide rails; the short boom is used for tunnel maintenance. A balance support frame is installed at the front joint of the rotating folding arm 4. When the force applied by the robot arm is greater than the bearing capacity of the support trolley 1, the balance support frame is unfolded so that the force of the robot arm is transmitted to the roadway floor. The multi-functional work platform is carried by the work platform support trolley 1. During the movement, the multi-functional work platform is in the retracted state, occupying a space height of 900mm below the guide rail tread. When the tunneling head is in advance support, the work platform support trolley 1 is arranged at the front of the monorail crane locomotive. It is usually equipped with a two-drive electric monorail crane locomotive, and a pneumatic monorail crane or diesel engine monorail crane can also be configured as needed.

[0013] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0014] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-functional working platform for a monorail crane locomotive, characterized in that: The system includes a support trolley (1), a large platform assembly (2), a small platform assembly (3), and a rotating folding arm (4). The support trolley (1) has a frame structure with a set of wheels at the bottom that match the guide rails of a monorail crane and a horizontally extending base at the top. The large platform assembly (2) is connected to the front end of the base via a first hinge shaft, and the small platform assembly (3) is connected to the middle of the base via a second hinge shaft. The rotating folding arm (4) is connected to the rear end of the base via a rotary mechanism. The rotating folding arm (4) includes a first short arm, a second short arm, and a long arm. The first and second short arms are both rectangular tube structures, and the long arm is a rectangular tube structure with a larger cross-section. One end of the first and second short arms is hinged to both ends of the long arm via a first connecting shaft, and the other end of the long arm is connected to the output end of the rotary mechanism via a second connecting shaft. The large platform assembly (2), the small platform assembly (3), and the rotating folding arm (4) are folded and fitted against the top of the support trolley (1) in the non-operating state and unfolded in the operating state.

2. The multi-functional working platform for a monorail crane locomotive according to claim 1, characterized in that: The supporting trolley (1) includes a frame, a set of wheels, and a connecting interface; the frame is a frame structure welded from rectangular steel pipes, with two sets of wheels on each side of the bottom, each set of wheels including a drive wheel and a driven wheel, the drive wheel being driven by a motor; the connecting interface is located on the top of the frame, including a U-shaped groove matching the front crossbeam of the monorail crane locomotive and a quick-locking bolt, rubber buffer pads on both sides of the U-shaped groove, and the locking bolt threaded through the frame and connected to the locomotive crossbeam; the front end of the frame is also provided with a hydraulic cylinder mounting position, the hydraulic cylinder mounting position being used to fix the hydraulic cylinder that drives the large platform assembly (2) to lift.

3. The multi-functional working platform for a monorail crane locomotive according to claim 2, characterized in that: The rotary folding arm (4) has a rotary bearing, a gearbox, and a drive motor. The inner ring of the rotary bearing is fixedly connected to the flange at the rear end of the base, and the outer ring is fixedly connected to the second connecting shaft of the long arm. The gearbox is fixed in the middle of the long arm, with its input end connected to the output shaft of the drive motor and its output end meshing with the outer ring of the rotary bearing through a gear set. The maximum extension length of the long arm is 4.5m or 2.8m.

4. The multi-functional working platform for a monorail crane locomotive according to claim 3, characterized in that: The large platform component (2) includes a large platform body, a storage compartment, and an equipment fixing area; the large platform body is a rectangular frame structure with dimensions of 4m×1.4m, the frame is filled with anti-slip steel plates, and the edges are equipped with foldable guardrails with a height of 1.2m; the storage compartment is located at the bottom of the large platform body and includes 5 standard guide rail slots, 5 hanging component assembly brackets, and 1 portable anchor drilling rig fixing position; the equipment fixing area is located at the front end of the large platform body and includes 50 slots for mining mortar anchor bolts, the slots opening upwards and perpendicular to the top of the roadway.

5. The multi-functional working platform for a monorail crane locomotive according to claim 3, characterized in that: The small platform component (3) includes a small platform body, a toolbox and casters; the small platform body is a square frame structure with a size of 1.4m×1.4m, and the frame is covered with anti-slip mesh; the toolbox is located at the bottom of the small platform body, and the caster frame is hinged to the small platform body through a pin shaft, and the caster can be retracted and attached to the bottom of the small platform body in the working state.

6. The multi-functional working platform for a monorail crane locomotive according to claim 3, characterized in that: The rotating folding arm (4) is provided with a balance support frame at the front joint; the balance support frame includes a hydraulic push rod, a support plate and an anchor hook; the cylinder of the hydraulic push rod is hinged to the first connecting shaft at the front end of the long arm through the third hinge shaft, and the piston rod end is hinged to the middle of the support plate; the support plate is a rectangular steel plate, and the anchor hook is used to fix it to the roadway ground or roadway side; the oil inlet of the hydraulic push rod is connected to the hydraulic pump station of the support trolley (1) through an oil pipe, and the oil pipe is laid along the inside of the rectangular tube of the rotating folding arm (4).

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