A working platform device above the cutting part

Abstract

The present invention discloses a working platform device above a cutting part, the working platform device includes a platform assembly and a detachable guardrail, the platform assembly can automatically adjust the tilt angle, and the detachable guardrail can be inserted on the platform assembly. The working platform device of the present invention controls the tilt angle of the platform through the support hinge and the leveling cylinder to ensure that when the tunnel boring machine or anchor boring machine is in a stopped state, the platform is always in a horizontal state, which is convenient for drilling and anchoring workers to stand. The platform device is designed as a two-layer foldable structure. After folding, the external dimensions are small, which does not affect the left and right and up and down swinging performance of the cutting part, and does not affect the normal cutting and topping operation of the anchor boring machine drilling and anchoring system; at the same time, a rotating structure is designed, which can realize the overall rotation of the platform through the control of the rotary cylinder. When in use, it can be rotated to any position within the range of 0 to 180 degrees. When needed, the guardrail steel pipe can be inserted into the second mounting hole and the first mounting hole, which can further improve the safety of workers standing on the platform.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel excavation equipment, in particular to an operating platform device above a cutting part. Background Art

[0002] Existing underground tunneling equipment, such as roadheaders and anchor miners, lack covers on their telescopic sections or working arms. Instead, they feature thin covers above the cutting motor and reducer, primarily protecting the oil pipes and cables in the cutting section. During underground operations, these machines often require drilling, anchoring, and maintenance personnel to stand directly overhead. However, existing roadheaders and anchor miners lack a safe and reliable platform above the cutting section, making it difficult for workers to find a suitable, safe, and reliable standing position. This hinders drilling, anchoring, and maintenance work progress and can easily lead to safety accidents. Therefore, a work platform device above the cutting section is proposed to address this issue. Summary of the Invention

[0003] The present invention aims to provide a working platform above the cutting section. The platform's tilt angle is controlled by a hinged support and a leveling cylinder. This ensures that the platform remains level even when the tunnel boring machine or anchor drill is stopped, making it convenient for drilling and anchoring operators to stand. This solves the problem of a lack of a working platform above the cutting section and the unsafe tilting of the platform. The platform is designed as a two-layer, foldable and rotatable structure. When folded, it offers a compact size without affecting the left-right and up-and-down swinging performance of the cutting section, nor does it affect the cutting section or the topping operation of the anchor drill system. A rotating frame structure controlled by a rotary cylinder allows the platform to rotate as a whole. When not in use, the platform folds and rotates above the cutting section. When in use, it can be rotated to any position within a range of 0 to 180 degrees, offering a wide adjustment range and excellent adaptability. A removable guardrail is installed above the platform. When needed, the guardrail steel pipe is inserted into the second and first mounting holes. This allows for easy installation and removal, further enhancing operator safety while standing on the platform.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A working platform device above a cutting part comprises a platform component and a detachable guardrail. The platform component can automatically adjust the tilt angle, and the detachable guardrail can be inserted on the platform component.

[0006] The platform assembly includes a platform mounting plate and two rear supports. The rear support is installed on the upper part of the cutting reducer. A rear support connecting ear is provided on the rear support. A platform connecting ear is provided on the platform mounting plate. The support connecting ear can be connected to the platform connecting ear provided at the tail of the platform mounting plate through a pin shaft. A leveling cylinder mounting ear is provided on the end of the platform mounting plate away from the platform connecting ear.

[0007] The detachable guardrail is formed by riveting and welding steel pipes, and limiting rings are provided at various locations of the steel pipes at the bottom of the guardrail.

[0008] Furthermore, a front support is provided between the leveling cylinder mounting ear and the platform connecting ear. The front support is installed on the upper part of the telescopic outer cylinder, and the non-telescopic model is installed on the upper part of the working arm body. Both the front support and the rear support are installed above the cutting part.

[0009] The front support is provided with a front support connecting ear, and the two ends of the leveling cylinder are respectively connected to the front support connecting ear and the leveling cylinder mounting ear through a pin shaft, and the inclination adjustment of the platform mounting plate is achieved by the extension and contraction of the leveling cylinder.

[0010] Furthermore, a rotary cylinder is fixed on the platform mounting plate, the shell of the rotary cylinder is fastened to the platform mounting plate by bolts, the rotary part of the rotary cylinder is connected to the rotating frame located above the platform mounting plate, and the rotary movement of the rotating frame is achieved by controlling the rotary cylinder.

[0011] Furthermore, the platform assembly also includes a rotary cylinder, a rotating frame and a flip frame. The rotary cylinder is installed below the platform mounting plate, and the rotary cylinder housing is connected to the platform mounting plate.

[0012] The rotary part of the rotary oil cylinder is connected to the rotating frame located above the platform mounting plate. The rotating frame is rotated on the platform mounting plate by controlling the rotary oil cylinder. A flip frame is provided on the rotating frame, and the flip frame is connected to the rotating frame through a pin shaft.

[0013] Furthermore, the rotating frame includes a first frame and a mounting plate. The first frame can be made of a square or rectangular steel pipe. A first connecting ear is provided on one side of the first frame, and a steel plate mesh is provided on the upper part of the first frame.

[0014] A first mounting hole is provided on the other side of the first frame, and the first mounting hole is used to install a guardrail. The mounting plate is arranged on one side inside the first frame. Holes are opened on the mounting plate as needed to achieve connection with the rotating part of the rotary cylinder. The steel plate mesh is welded to the upper part of the first frame.

[0015] Furthermore, the flip frame includes a second frame, one side of the second frame is provided with a second connecting ear that matches the first connecting ear, and the other side of the second frame is provided with a second mounting hole.

[0016] The second frame is provided with a steel plate mesh, the second mounting hole is used for mounting a guardrail, and the second connecting ear can be connected to the first connecting ear through a pin shaft, a baffle and screws.

[0017] Beneficial effects of the present invention:

[0018] 1. A working platform device is provided above the cutting section. The tilt angle of the platform is controlled by the support hinge and the leveling cylinder. This ensures that the platform is always level when the roadheader or anchor drill is stopped, making it convenient for drilling and anchoring workers to stand. This solves the problem of no working platform above the cutting section and the unsafe tilt of the platform.

[0019] 2. The working platform device of the present invention is designed as a two-layer foldable structure. After folding, the external dimensions are small, which does not affect the left and right and up and down swing performance of the cutting part, and does not affect the cutting and drilling and anchoring system topping operations;

[0020] 3. The working platform device of the present invention is designed with a rotating frame structure, which can realize the overall rotation of the platform through the control of the rotary cylinder. When the platform is not in use, it can be folded and rotated above the cutting part; when in use, it can be rotated to any position within the range of 0 to 180 degrees, with a large adjustment range and good adaptability.

[0021] 4. The working platform device of the present invention is provided with a detachable guardrail above the platform. When needed, the guardrail can be installed into the mounting hole on the platform frame. It is easy to install and disassemble, which can further improve the safety of workers standing on the platform.

[0022] 5. The overall design of the working platform device of the present invention is reasonable and the structure is compact. The platform is foldable, rotatable and levelable, and is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of the working platform device of the present invention;

[0025] Figure 2 is a schematic diagram of the working platform device of the present invention being assembled on the cutting part;

[0026] Figure 3 It is a three-dimensional schematic diagram of the working platform device of the present invention assembled on the telescopic cutting part;

[0027] Figure 4 This is a front view of the working platform device of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the rotating frame of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the turnover frame of the present invention;

[0030] Figure 7 This is a schematic diagram of the connection between the rotating frame and the flip frame of the present invention;

[0031] Figure 8This is a top view of the working platform device of the present invention in working state;

[0032] Figure 9 It is a schematic structural diagram of the detachable guardrail of the present invention. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] A working platform device above a cutting part includes a platform component 1 and a detachable guardrail 2. The platform component 1 can automatically adjust the tilt angle. The detachable guardrail 2 can be inserted on the platform component 1 to ensure the safety of workers on the platform component 1.

[0035] like Figure 1-Figure 4 As shown, the platform assembly 1 includes a platform mounting plate 13 and two rear supports 11. The rear support 11 is installed on the upper part of the cutting reducer. A rear support connecting ear 12 is provided on the rear support 11, and a platform connecting ear 131 is provided on the platform mounting plate 13. The support connecting ear 12 can be connected to the platform connecting ear 131 set at the tail of the platform mounting plate 13 through a pin shaft. A leveling cylinder mounting ear 14 is provided on the end of the platform mounting plate 13 away from the platform connecting ear 131.

[0036] A front support 16 is located between the leveling cylinder mounting lug 14 and the platform connection lug 131. This is mounted on top of the telescopic outer cylinder. For non-telescopic models, it can be installed on top of the working arm. The front support 16 and the rear support 11 are mounted above the cutting section. Front support 16 is provided with a front support connection lug 161. The two ends of the leveling cylinder 15 are pin-connected to the front support connection lug 161 and the leveling cylinder mounting lug 14, respectively. The extension and retraction of the leveling cylinder 15 allows for adjustment of the platform mounting plate 13's inclination.

[0037] A rotary cylinder 17 is fixed on the platform mounting plate 13. The shell of the rotary cylinder 17 is fastened to the platform mounting plate 13 by bolts. The rotating part of the rotary cylinder 17 is connected to the rotating frame 18 located above the platform mounting plate 13. The rotating movement of the rotating frame 18 is achieved by controlling the rotary cylinder 17. A flip frame 19 is provided on the rotating frame 18, and the flip frame 19 is connected to the rotating frame 18 by a pin shaft.

[0038] like Figure 5As shown, the rotating frame 18 includes a first frame 181 and a mounting plate 182. The first frame 181 can be made of a square or rectangular steel pipe. A first connecting ear 183 is provided on one side of the first frame 181, and a steel plate mesh 184 is provided on the upper part of the first frame 181. A first mounting hole 185 is provided on the other side of the first frame 181 for installing a guardrail. The mounting plate 182 is arranged on one side inside the first frame 181. Holes are opened on the mounting plate 182 as needed to achieve connection with the rotating part of the rotary cylinder 17. The steel plate mesh 184 is welded to the upper part of the first frame 181 to provide a standing platform for the operator.

[0039] like Figure 6-Figure 8 As shown, the flip frame 19 includes a second frame 191, and a second connecting ear 192 that cooperates with the first connecting ear 183 is provided on one side of the second frame 191. A second mounting hole 194 is provided on the other side of the second frame 191. A steel plate mesh 193 is provided on the second frame 191, and the second mounting hole 194 is used to install a guardrail. The second connecting ear 192 can be connected to the first connecting ear 183 through a pin, a baffle and a screw to realize the flipping movement of the flip frame.

[0040] like Figure 9 As shown, the detachable guardrail 2 is made of steel pipes 21 riveted and welded together, and a limiting ring 22 is provided at each position of the steel pipe 21 at the bottom of the guardrail.

[0041] This platform is designed as a two-layer foldable, rotatable, and levelable structure. During use, a rotary cylinder 17 controls the rotating frame 18, achieving integrated rotation of the rotating frame 18 and the flip frame 19. The flip frame 19 is then flipped open. The entire platform's tilt angle is controlled by the support hinge and the leveling cylinder 15. This ensures that the platform remains horizontal even when the tunnel boring machine or anchor drill is stopped, making it convenient for drilling, anchoring, and maintenance workers to stand, thus resolving the issue of unsafe platform tilt. When the platform is not in use, the retraction process is the reverse of the opening process, ultimately allowing the platform to fold and rotate above the cutting section.

[0042] When in use, the platform can be rotated to any position within a range of 0 to 180 degrees, offering a wide adjustment range and excellent adaptability. When folded, the platform's compact dimensions maintain the left-right and up-and-down swinging performance of the cutting unit, ensuring normal cutting and anchor drilling operations. A removable guardrail 2 is installed above the platform. When needed, the guardrail steel pipe 21 can be inserted into the second mounting hole 194 and the first mounting hole 185. This allows for easy installation and removal, further enhancing safety for operators standing on the platform.

[0043] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these 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 any one or more embodiments or examples.

[0044] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A working platform device above a cutting unit, comprising a platform assembly (1) and a detachable guardrail (2), characterized in that: The platform component (1) automatically adjusts its tilt angle, and the detachable guardrail (2) is inserted on the platform component (1); The platform assembly (1) includes a platform mounting plate (13) and two rear supports (11), the rear supports (11) are mounted on the upper part of the cutting reducer, the rear supports (11) are provided with rear support connecting ears (12), the platform mounting plate (13) is provided with platform connecting ears (131), the support connecting ears (12) and the platform connecting ears (131) provided at the tail of the platform mounting plate (13) are connected by a pin shaft, and a leveling oil cylinder mounting ear (14) is provided on the end of the platform mounting plate (13) away from the platform connecting ears (131); The detachable guardrail (2) is formed by riveting and welding steel pipes (21), and a limiting ring (22) is provided at each position of the steel pipe (21) at the bottom of the detachable guardrail (2); The platform assembly (1) further comprises a rotary oil cylinder (17), a rotating frame (18) and a turning frame (19); the rotary oil cylinder (17) is mounted below the platform mounting plate (13); and the housing of the rotary oil cylinder (17) is fastened to the platform mounting plate (13) by bolts; The rotary part of the rotary oil cylinder (17) is connected to a rotating frame (18) located above the platform mounting plate (13). The rotating frame (18) is rotated above the platform mounting plate (13) by controlling the rotary oil cylinder (17). A turning frame (19) is provided on the rotating frame (18). The turning frame (19) is connected to the rotating frame (18) through a pin shaft.

2. The working platform device above the cutting part according to claim 1, characterized in that: A front support (16) is provided between the leveling cylinder mounting ear (14) and the platform connecting ear (131), the front support (16) being mounted on the upper portion of the telescopic outer cylinder, and being mounted on the upper portion of the working arm body in the case of a non-telescopic machine, and the front support (16) and the rear support (11) being mounted above the cutting portion; The front support (16) is provided with a front support connecting ear (161), and the two ends of the leveling cylinder (15) are respectively connected to the front support connecting ear (161) and the leveling cylinder mounting ear (14) through a pin shaft, and the inclination adjustment of the platform mounting plate (13) is achieved by the extension and contraction of the leveling cylinder (15).

3. The working platform device above the cutting part according to claim 2, characterized in that: The rotating frame (18) includes a first frame (181) and a mounting plate (182). The first frame (181) is made of a square or rectangular steel pipe. A first connecting ear (183) is provided on one side of the first frame (181). A first steel plate mesh (184) is provided on the upper portion of the first frame (181). A first mounting hole (185) is provided on the other side of the first frame (181) for mounting a detachable guardrail (2); a mounting plate (182) is provided on one side inside the first frame (181); a hole is opened on the mounting plate (182) as required to achieve connection with the rotating part of the rotary cylinder (17); and a first steel plate mesh (184) is welded to the upper part of the first frame (181).

4. The working platform device above the cutting part according to claim 3, characterized in that: The flip frame (19) includes a second frame (191), one side of the second frame (191) is provided with a second connecting ear (192) that matches the first connecting ear (183), and the other side of the second frame (191) is provided with a second mounting hole (194); The second frame (191) is provided with a second steel plate mesh (193), the second mounting hole (194) is used for mounting a detachable guardrail (2), and the second connecting ear (192) is connected to the first connecting ear (183) via a pin, a baffle and screws.

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