Airborne Flip-type Support Operation Platform and Roadheader

Abstract

The present invention belongs to the technical field of tunnel boring equipment. An airborne flip-type support operation platform is provided on the motor box body of the cutting arm, and includes a main platform and a front platform. The rear end of the main platform is hinged to the motor box body; the rear end of the front platform is hinged to the front end of the main platform; in the retracted state, the front platform and the main platform flip backward and are stacked on the motor box body; in the deployed state, the main platform and the front platform are supported on the cutting arm. An arm-type roadheader is also disclosed. The present application can provide a standing position and a construction protection platform for support operation personnel without moving the arm-type roadheader after the tunnel excavation is completed, nor the need for a dedicated support trolley equipment, improving the construction efficiency and optimizing the construction process.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel boring equipment, and particularly relates to an airborne flip-type support operation platform and a roadheader. Background Art

[0002] A roadheader is a mining machinery integrating cutting, traveling, and loading and transporting, which is widely used in mining and the construction of railway and highway tunnels. At home and abroad, many research results have been achieved in the rapid construction and new tooling of large-section railway and highway tunnels. However, for small-section water diversion tunnel projects, due to the limitation of the section size, the construction space is small, the processes are crossed, and the construction interference is large. When carrying out operations such as drilling, blasting, ventilation, and mucking at the same working face, only a periodic cyclic construction method can be adopted, which restricts the wide application of high-efficiency mechanical equipment. These problems have not been effectively solved so far, resulting in difficulty in breaking through the construction technology of extra-long small and medium-section water diversion tunnels.

[0003] With the development and application of the roadheader in the tunnel mechanized tunneling process, the tunnel construction speed and efficiency have been greatly improved. However, the traditional roadheader can only carry out the excavation and mucking operations of tunnel construction, and the subsequent support operations still need to be completed manually. When manually carrying out the support operation, the whole roadheader needs to retreat to reserve enough space for support equipment such as a support trolley. When the construction space is narrow, the roadheader even needs to withdraw to the tunnel entrance or excavate a special chamber for passing and temporarily parking the equipment, which seriously affects the construction progress and also brings certain safety hazards. To improve the tunnel construction efficiency and ensure the continuity of the tunnel construction excavation process and the support process, it is necessary to design an airborne support operation platform for the roadheader for support construction operations. Summary of the Invention

[0004] The purpose of the present invention is to address the above problems and deficiencies, and provide an airborne flip-type support operation platform and a roadheader, which can provide a standing position and a construction protection platform for support operation personnel without moving the roadheader and without a dedicated support trolley equipment after the tunnel excavation is completed, improve the construction efficiency, and optimize the construction process.

[0005] To achieve the above purpose, the technical solution adopted is:

[0006] An airborne flip-type support operation platform is provided on the motor housing of the cutting arm, and includes:

[0007] A main platform, the rear end of the main platform is hinged to the motor housing; and

[0008] A front platform, the rear end of the front platform is hinged to the front end of the main platform;

[0009] In the retracted state, the front platform and the main platform are flipped backward and stacked on the motor housing.

[0010] In the deployed state, the main platform and the front platform are supported on the cutting arm.

[0011] According to the airborne flip-type support operation platform of the present invention, preferably, a first wing platform and a second wing platform are respectively hinged on both sides of the main platform; a third wing platform and a fourth wing platform are respectively hinged on both sides of the front platform.

[0012] In the deployed state, the side walls of the wing platforms are attached and supported to the corresponding side walls of the main platform or the front platform.

[0013] In the retracted state, the wing platforms are flipped inward and stacked on the corresponding main platform or front platform.

[0014] According to the airborne flip-type support operation platform of the present invention, preferably, a first sliding cavity and a second sliding cavity are respectively provided on both sides of the main platform, and a first sliding platform and a second sliding platform are respectively arranged in the first sliding cavity and the second sliding cavity.

[0015] A third sliding cavity and a fourth sliding cavity are respectively provided on both sides of the front platform, and a third sliding platform and a fourth sliding platform are respectively arranged in the third sliding cavity and the fourth sliding cavity.

[0016] According to the airborne flip-type support operation platform of the present invention, preferably, it further includes a flip driving part, and the flip driving part drives the main platform to rotate relative to the motor housing.

[0017] The flip driving part includes a flip power push rod; or the flip driving part includes a driving motor, a main driving gear arranged at the action end of the driving motor, and a driven driving gear arranged on the pivot shaft between the main platform and the motor housing, and the driving motor is arranged on the motor housing.

[0018] According to the airborne flip-type support operation platform of the present invention, preferably, it further includes a first extension platform and a second extension platform, and the first extension platform and the second extension platform are respectively hinged on both sides of the motor housing.

[0019] In the deployed state, the first extension platform and the second extension platform are arranged at the rear side of the main platform.

[0020] In the retracted state, the first extension platform and the second extension platform are stacked on the motor housing, and the main platform is stacked on the first extension platform and the second extension platform after being flipped backward.

[0021] According to the airborne flip - type support operation platform of the present invention, preferably, a limit groove matching the cutting head at the end of the cutting arm is provided in the middle of the front end of the front platform, and an arc - shaped sealing plate is provided on the limit groove; a limit support frame matching the cutting arm is provided in the middle of the rear end of the front platform.

[0022] According to the airborne flip - type support operation platform of the present invention, preferably, it further includes a rear platform. The rear platform is in a broken - line shape and is arranged on the motor box body in a matching manner, and a support platform corresponding to the front platform is provided in the middle of the rear platform.

[0023] According to the airborne flip - type support operation platform of the present invention, preferably, each platform includes a plate body and a framework. The framework is a support rod arranged in a criss - cross pattern.

[0024] A roadheader, comprising:

[0025] A roadheader main body;

[0026] A cutting arm, which is arranged at the front part of the roadheader main body;

[0027] A cutting head, which is arranged at the front end of the cutting arm; and

[0028] The airborne flip - type support operation platform according to any one of claims 1 - 8, wherein the airborne flip - type support operation platform is arranged corresponding to the cutting arm and the cutting head.

[0029] According to the roadheader of the present invention, preferably, it further includes an advanced drilling system, a shotcreting system and a dust removal system;

[0030] The advanced drilling system is arranged at the upper front end of the roadheader mainframe. The advanced drilling system includes a drilling rig assembly, a translational four - link mechanism arranged between the drilling rig assembly and the roadheader mainframe, and a drilling drive part. The drilling drive part drives the translational four - link mechanism to swing.

[0031] The shotcreting system includes an airborne shotcreting boom and a pumping system. The airborne shotcreting boom includes a first arm rod pivotally arranged on the roadheader main body, a rotary table pivotally arranged at the end of the first arm rod, a second arm rod rotatably arranged on the rotary table, a first drive part and a second drive part. The first drive part drives the first arm rod to swing relative to the roadheader main body, and the second drive part drives the rotary table to swing relative to the first arm rod; both the first arm rod and the second arm rod are telescopic arm rods.

[0032] Adopting the above - mentioned technical solutions, the beneficial effects obtained are:

[0033] The structure design of the roadheader of this application is reasonable, and the equipment is equipped with functions such as advanced drilling holes, excavation, transportation, shotcreting, support, and dust removal. Thus, the construction efficiency is improved. When support is required after excavation, there is no need to additionally add a support scaffold, and there is no need to move the machine, which can provide an operation platform for subsequent support, saving time and effort, reducing the support cost, and improving the support efficiency.

[0034] The structure design of this application enables manual operations such as driving rock bolts and erecting beams on the support operation platform. The support operation platform is integrated into the roadheader, unfolds during support operations, and retracts during excavation operations, saving space and cost, and can adapt to the rapid support of relatively narrow tunnels; this application can achieve a 180-degree flip during the process of the platform retracting to unfolding, with high flexibility, a large unfolding space, a small occupied space when retracted, and a stable structure.

[0035] Through the design of the main platform and the front platform of this application, the space is effectively expanded in the longitudinal direction, and through the setting of the flank platform, the space can be effectively expanded in the transverse direction. Its overall structure realizes self-support, with good stability, and the structure layout is reasonable, and it can achieve positioning and support based on its own structure design, thus ensuring stable support on the cutting arm and the cutting head.

[0036] Through the setting of the shotcreting system and the advanced drilling system of this application, multi-degree-of-freedom adjustment can be realized, thereby increasing the operation range, making it more convenient for systematic construction operations, and ensuring the operation efficiency of the entire construction process. Brief Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly introduced below. Among them, the drawings are only used to show some embodiments of the present invention, rather than limiting all embodiments of the present invention thereto.

[0038] Figure 1 It is a schematic structural diagram of the airborne flip-type support operation platform according to an embodiment of the present invention.

[0039] Figure 2 It is a schematic structural diagram of the airborne flip-type support operation platform in the retracted state according to an embodiment of the present invention.

[0040] Figure 3 It is one of the schematic structural diagrams during the unfolding process of the airborne flip-type support operation platform according to an embodiment of the present invention.

[0041] Figure 4 It is the second schematic structural diagram during the unfolding process of the airborne flip-type support operation platform according to an embodiment of the present invention.

[0042] Figure 5Schematic structural diagram of the airborne flip - type support operation platform after deployment according to an embodiment of the present invention.

[0043] Figure 6 Front - view structural schematic diagram of a tunnel boring machine according to an embodiment of the present invention.

[0044] Figure 7 Top - view structural schematic diagram of a tunnel boring machine according to an embodiment of the present invention.

[0045] Figure 8 One of the structural schematic diagrams of the advanced drilling system according to an embodiment of the present invention.

[0046] Figure 9 Another structural schematic diagram of the advanced drilling system according to an embodiment of the present invention.

[0047] Figure 10 One of the structural schematic diagrams of the shotcreting system according to an embodiment of the present invention.

[0048] Figure 11 Another structural schematic diagram of the shotcreting system according to an embodiment of the present invention.

[0049] Numbers in the figure:

[0050] 100 is the airborne flip - type support operation platform, 110 is the main platform, 111 is the first wing platform, 112 is the second wing platform, 120 is the front platform, 121 is the third wing platform, 122 is the fourth wing platform, 123 is the limit groove, 124 is the arc - shaped sealing plate, 125 is the limit support frame, 130 is the first extended platform, 140 is the second extended platform, 150 is the rear platform, 151 is the support table, 161 is the flip power push rod, 162 is the connecting rod;

[0051] 200 is the main body of the tunnel boring machine;

[0052] 300 is the cutting arm, 310 is the cutting head, 320 is the motor housing;

[0053] 400 is the advanced drilling system, 401 is the drilling rig assembly, 402 is the translational four - link mechanism, 403 is the drilling drive unit;

[0054] 500 is the shotcreting system, 501 is the first boom, 502 is the slewing platform, 503 is the second boom, 504 is the pumping system, 505 is the first drive unit, 506 is the second drive unit;

[0055] 600 is the dust removal system. Detailed implementation manners

[0056] In the following, the exemplary solutions of the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the specific embodiments of the present invention. Unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meaning understood by those of ordinary skill in the art.

[0057] In the description of the present invention, it should be understood that the expressions "first" and "second" are used to describe the various elements of the present invention, and do not represent any limitation of order, quantity or importance, but are only used to distinguish one component from another.

[0058] It should be noted that when there is an expression that an element is "connected", "coupled" or "linked" to another element, it may mean that they are directly connected, coupled or linked, but it should be understood that there may be intermediate elements between the two; that is, it covers the positional relationship of direct connection and indirect connection.

[0059] It should be noted that the use of similar words such as "a" or "an" does not necessarily indicate a limitation of quantity. Words such as "comprising" or "including" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0060] It should be noted that terms indicating orientation or positional relationship such as "upper", "lower", "left", "right", etc. are only used to represent the relative positional relationship, which is for the convenience of describing the present invention, rather than the device or element must have a specific orientation, be constructed and operated in a specific orientation; when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0061] See Figures 1-5 , this application discloses an airborne flip-type support operation platform, which is arranged on the motor housing 320 of the cutting arm 300, and includes a main platform 110 and a front platform 120. The rear end of the main platform 110 is hinged to the motor housing 320; the rear end of the front platform 120 is hinged to the front end of the main platform 110; in the retracted state, the front platform 120 and the main platform 110 are flipped backward and stacked on the motor housing 320; in the deployed state, the main platform 110 and the front platform 120 are supported on the cutting arm 300.

[0062] Furthermore, in order to increase the effective area of the operation platform, extensions can be made on both sides of the main platform. For the extended structure, this application provides two methods, one is by folding, and the other is by telescoping.

[0063] The folding method is as follows: A first wing platform 111 and a second wing platform 112 are respectively hinged on both sides of the main platform 110; a third wing platform 121 and a fourth wing platform 122 are respectively hinged on both sides of the front platform 120; in the unfolded state, the side walls of each wing platform are attached and supported to the side walls of the corresponding main platform 110 or front platform 120; in the retracted state, each wing platform is turned inward and stacked on the corresponding main platform 110 or front platform 120.

[0064] The telescoping method is as follows: A first sliding cavity and a second sliding cavity are respectively arranged on both sides of the main platform 110, and a first sliding platform and a second sliding platform are respectively arranged in the first sliding cavity and the second sliding cavity; a third sliding cavity and a fourth sliding cavity are respectively arranged on both sides of the front platform 120, and a third sliding platform and a fourth sliding platform are respectively arranged in the third sliding cavity and the fourth sliding cavity.

[0065] In the drawings of this embodiment, the specific structure of the folding method is given. For the folding structure, when setting the hinge axis, the hinge ear plates on each wing platform and the corresponding main platform or front platform are arranged on the upper surface. After setting the hinge axis, the side walls can be parallel and attached to support each other when flattened, so as to play a supporting role, prevent the wing platform from rotating downward, thus avoiding other limiting support structures, effectively simplifying the structure, improving the stability of the structure, and making it more convenient for the unfolding and retracting deformation operations.

[0066] For the convenience of unfolding, a flipping drive part is also arranged in this application, and the flipping drive part drives the main platform 110 to rotate relative to the motor box 320; the flipping drive part includes a flipping power push rod 161. By setting a connecting rod, the connecting rod is hinged on the motor box, one end of the connecting rod 162 is hinged to the flipping power push rod 161, and the other end of the connecting rod is hinged to the main platform 110, so that the power conversion is realized by the connecting rod 162. The flipping power push rod 161 in the above structure is a hydraulic cylinder and is controlled through the hydraulic system of the cutting arm; the structure of the flipping drive part can also be including a driving motor, a main driving gear arranged at the action end of the driving motor, and a driven driving gear arranged on the pivot shaft between the main platform and the motor box. The driving motor is arranged on the motor box, that is, the rotation action is realized through the meshing of the gears. The flipping of each wing platform and the front platform can be manual.

[0067] Further, in this embodiment, a first extension platform 130 and a second extension platform 140 are further included. The first extension platform 130 and the second extension platform 140 are respectively hinged on both sides of the motor box body 320. In the deployed state, the first extension platform 130 and the second extension platform 140 are arranged at the rear side of the main platform 110. In the retracted state, the first extension platform 130 and the second extension platform 140 are stacked on the motor box body 320, and the main platform 110 is turned backward and stacked on the first extension platform 130 and the second extension platform 140. The supporting manner of the first extension platform and the second extension platform can be the same as that of the above-mentioned wing platform.

[0068] Preferably, in order to make the front platform adapt to the structures of the cutting arm and the cutting head and ensure the stability of the overall structure, a limiting groove 123 matching the cutting head 310 at the end of the cutting arm 300 is provided in the middle of the front end of the front platform, and an arc-shaped sealing plate 124 is provided on the limiting groove 123. A limiting support frame 125 matching the cutting arm is provided in the middle of the rear end of the front platform.

[0069] Further, the present application further includes a rear platform 150. The rear platform 150 is in a folded line shape and is correspondingly arranged on the motor box body 320. A support platform 151 corresponding to the front platform is provided in the middle of the rear platform 150. In the retracted state, due to the setting of the arc-shaped sealing plate, in order to ensure the stability of the structure after retraction, the front platform is supported by the support platform, thereby avoiding the instability problem caused by the uneven structure of the arc-shaped sealing plate after retraction.

[0070] In the above structure, each platform includes a plate body and a framework, and the framework is a support rod arranged in a criss-cross manner.

[0071] In order to ensure the support stability after flipping and unfolding, the hinge shafts between adjacent two components are all arranged close to the upper support surface of each platform, and side wall fitting support can be realized after unfolding. In addition, since the main platform needs to fit on the motor box body after flipping, and there is a certain interference in height after the first wing platform and the second wing platform are folded inward, therefore, the height of its hinge support is correspondingly adjusted, and notch corresponding to the hinge support is provided on the first wing platform and the second wing platform to avoid interference and ensure flatness and stability after retraction.

[0072] See Figures 1-11 , the present application also discloses a roadheader, including a roadheader main body 200, a cutting arm 300, a cutting head 310 and an on-board flip-type support operation platform. The cutting arm 300 is arranged at the front part of the roadheader main body; the cutting head 310 is arranged at the front end of the cutting arm; the on-board flip-type support operation platform is correspondingly arranged with the cutting arm 300 and the cutting head 310.

[0073] It further includes an advanced drilling system 400, a shotcreting system 500 and a dust removal system 600; the advanced drilling system 400 is arranged at the upper front end of the main body of the roadheader, and the advanced drilling system includes a drilling rig assembly 401, a translational four-bar linkage mechanism 402 arranged between the drilling rig assembly and the main body of the roadheader, and a drilling drive unit 403, and the drilling drive unit drives the translational four-bar linkage mechanism to swing; the shotcreting system includes an on-board shotcreting boom and a pumping system 504, and the on-board shotcreting boom includes a first boom 501 pivotally arranged on the main body of the roadheader, a rotary table 502 pivotally arranged at the end of the first boom, a second boom 503 rotatably arranged on the rotary table, a first drive unit 505 and a second drive unit 506, the first drive unit 505 drives the first boom 501 to swing relative to the main body of the roadheader, and the second drive unit 506 drives the rotary table to swing relative to the first boom 501; both the first boom 501 and the second boom 503 are telescopic booms.

[0074] In the above structure, both the first drive unit and the second drive unit adopt hydraulic cylinders and are driven by the hydraulic system of the cutting arm.

[0075] The preferred embodiments for implementing the present invention have been described in detail above, but it should be understood that the functions of these embodiments are only for examples and do not limit the scope, application or construction of the present invention in any way. The protection scope of the present invention is defined by the appended claims and their equivalent means. Those of ordinary skill in the art can make many changes to the foregoing embodiments under the teaching of the present invention, and these changes all fall within the protection scope of the present invention.

Claims

1. An airborne flip-type support operation platform is arranged on the motor box body of a cutting arm, and is characterized in that Comprising: A main platform, the rear end of the main platform is hinged to the motor housing; And A front platform, the rear end of the front platform is hinged to the front end of the main platform; on both sides of the front platform, a third wing platform and a fourth wing platform are respectively hinged; In the unfolded state, the side walls of each wing platform are attached and supported to the corresponding side wall of the main platform or the front platform; in the retracted state, each wing platform is flipped inwards and stacked on the corresponding main platform or the front platform; In the retracted state, the front platform and the main platform are flipped backwards and stacked on the motor housing; In the unfolded state, the main platform and the front platform are supported on the cutting arm; It further includes a first extension platform and a second extension platform, the first extension platform and the second extension platform are respectively hinged on both sides of the motor housing; In the unfolded state, the first extension platform and the second extension platform are arranged at the rear side of the main platform; in the retracted state, the first extension platform and the second extension platform are stacked on the motor housing, and the main platform is stacked on the first extension platform and the second extension platform after being flipped backwards; In the middle of the front end of the front platform, a limit groove matching the cutting head at the end of the cutting arm is provided, and an arc-shaped sealing plate is provided on the limit groove; in the middle of the rear end of the front platform, a limit support frame matching the cutting arm is provided.

2. The airborne flip-type support operation platform according to claim 1, characterized in that, On both sides of the main platform, a first wing platform and a second wing platform are respectively hinged.

3. The airborne flip-type support operation platform according to claim 1, characterized in that, On both sides of the main platform, a first sliding cavity and a second sliding cavity are respectively provided, and a first sliding platform and a second sliding platform are respectively provided in the first sliding cavity and the second sliding cavity; On both sides of the front platform, a third sliding cavity and a fourth sliding cavity are respectively provided, and a third sliding platform and a fourth sliding platform are respectively provided in the third sliding cavity and the fourth sliding cavity.

4. The airborne flip-type support operation platform according to claim 1, characterized in that, It further includes a flipping drive part, and the flipping drive part drives the main platform to rotate relative to the motor housing; The flipping drive part includes a flipping power push rod; or the flipping drive part includes a drive motor, a main drive gear arranged at the action end of the drive motor, and a driven drive gear arranged on the pivot shaft between the main platform and the motor housing, and the drive motor is arranged on the motor housing.

5. The airborne flip-type support operation platform according to claim 1, wherein, It further includes a rear platform, the rear platform is in a zigzag shape and is correspondingly arranged on the motor housing, and a support platform corresponding to the front platform is provided in the middle of the rear platform.

6. The airborne flip-type support operation platform according to any one of claims 1-5, characterized in that Each platform includes a plate body and a framework, and the framework is a support rod arranged in a crisscross manner.

7. A roadheader, characterized in that, Comprising: An excavator main body; A cutting arm, which is arranged at the front part of the excavator main body; A cutting head, which is arranged at the front end of the cutting arm; And The airborne flip-type support operation platform as described in any one of claims 1-6, and the airborne flip-type support operation platform is correspondingly arranged with the cutting arm and the cutting head.

8. The roadheader according to claim 7, wherein, It further includes an advanced drilling system, a shotcreting system and a dust removal system; The advanced drilling system is arranged at the upper front end of the tunneling machine main body. The advanced drilling system includes a drilling rig assembly, a translational four-bar linkage mechanism arranged between the drilling rig assembly and the tunneling machine main body, and a drilling driving part. The drilling driving part drives the translational four-bar linkage mechanism to swing. The shotcreting system includes an on-board shotcreting boom and a pumping system. The on-board shotcreting boom includes a first boom pivotally arranged on the tunneling machine main body, a rotary table pivotally arranged at the end of the first boom, a second boom rotatably arranged on the rotary table, a first driving part and a second driving part. The first driving part drives the first boom to swing relative to the tunneling machine main body, and the second driving part drives the rotary table to swing relative to the first boom. Both the first boom and the second boom are telescopic booms.

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