Onboard protective cover for cutting head of heading machine

Abstract

The utility model discloses a machine-mounted protective cover of a cutting head of a heading machine in the field of protective covers, which comprises a connecting column and a connecting piece connected with the outer cambered surface of the connecting column, the connecting column is connected with a clamping part, one end of the connecting column is connected with a threaded piece, the threaded piece is in threaded connection with a threaded abutting piece, and the side face of the connecting piece is connected with a handle. By means of the device, the efficiency of protecting and carrying a cutting head structure by a single person can be effectively improved, the connection stability between the device and a cutting head is improved, and compared with a traditional device, the device has the advantages that the device is simple in structure and convenient to use. According to the device, stable connection of the device and the protection effect on the cutting head can be achieved through the combination of the clamping component and the protection component.

Description

Technical Field

[0001] The utility model relates to the technical field of protective covers, in particular to an airborne protective cover for a cutting head of a tunnel boring machine. Background Art

[0002] When constructing tunnels using the fully mechanized excavation method, after each cutting of the coal (rock) at the head working face, the roadheader retreats to 5m outside the working face, drops the cutting head to the ground, and then supports the working face. Because the cutting head of the roadheader is covered with cutting teeth, the working space on the working face is narrow, and the floor is uneven, to prevent personnel from accidentally touching the cutting head and causing unnecessary injuries, a cutting head shield must be promptly covered after the cutting head drops to the ground and before the working face is supported to protect the construction personnel. Currently, there are many different types of cutting head shields with no unified standard. Most are integral and made of steel bars of no less than φ20 and steel plates of δ5mm thick. They are relatively heavy, and each time the cutting head shield is covered, it takes 2 to 3 construction personnel to manually move it. Due to the frequent use, heavy weight, and high labor intensity of the shield, safety inspections have found that some construction personnel do not cover the shield to save effort, posing a safety hazard to construction.

[0003] Chinese patent publication number CN210105850U discloses an airborne protective cover for the cutting head of a roadheader. The cover comprises multiple curved panels that can be folded across the cutting head and hingedly connected to the cutting head. After the roadheader has exited the working face and stopped, the folded panels are pulled apart to cover the cutting head. This utility model is easy to install, quick to use, and labor-saving. The airborne protective cover for the cutting head is low-cost and suitable for all cantilevered roadheaders. It requires minimal labor, with only one person required to install the cover.

[0004] However, the above-mentioned disclosed solution has the following shortcomings: the above-mentioned solution adopts a rotating and folding method to protect the cutting head. In actual use, due to the heavy weight of the cutting head, the above-mentioned device is not easy to move after being fixed on the surface of the cutting head, thereby increasing the difficulty of operating the above-mentioned device. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the present invention to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] The purpose of the present invention is to address the technical problems existing in the background technology. The present invention proposes an airborne protective cover for the cutting head of a tunnel boring machine. The present invention can effectively improve the efficiency of a single person in protecting and carrying the cutting head structure through this device, and improve the connection stability between the present device and the cutting head. Compared with traditional devices, the present device can achieve stable connection of the device and protection of the cutting head through the combination of clamping components and protective components.

[0007] The utility model proposes an airborne protective cover for the cutting head of a tunnel boring machine, comprising a connecting column and a connecting piece connected to its outer arc surface, the connecting column is connected to a clamping component, one end of the connecting column is connected to a threaded component, the threaded component is threadedly connected to a threaded abutment component, a handle is connected to the side of the connecting component, and the outer arc surface of the threaded component is rotatably connected to the protective component.

[0008] By adopting the above technical solution, this solution can achieve the stability of the clamping and disassembly effect of the protective component of the device through the combination of the threaded part and the threaded abutment part, so that when the device is combined with the cutting head, the protective shell cover can be easily arranged on the outside of the cutting head.

[0009] Preferably, the clamping component includes a rotating member rotatably connected to the connecting column, and an installation slot is provided at one end of the rotating member away from the connecting column, and the inner wall of the installation slot is slidably connected to the installation member.

[0010] By adopting the above technical solution, this solution can facilitate the replacement of different corresponding clamping members for clamping combinations according to different cutting heads when using the device through the combination of the installation slot and the installation member, thereby ensuring the compatibility of the device.

[0011] Preferably, the mounting part is located inside the mounting groove, a locking part is threadedly connected to one side of the mounting part, and a clamping part is connected to the other side of the mounting part. An arc-shaped groove is provided on the side of the clamping part, and the locking part is in contact and squeezed with the side of the rotating part. The diameter of the clamping part is larger than the internal width of the mounting groove.

[0012] By adopting the above technical solution, the present solution can improve the clamping stability of the device through the structure of the arc-shaped groove.

[0013] Preferably, the protective component includes a telescopic connection member rotatably connected to the threaded member, one end of the telescopic connection member away from the threaded member is connected to an arc-shaped shell, and one end of the arc-shaped shell is connected to a docking magnet.

[0014] By adopting the above technical solution, the surface of the cutting head can be wrapped and covered by the arc-shaped shell, thereby improving the protection effect of the device.

[0015] Preferably, the handle surface is provided with an anti-slip layer, and the outer arc surface of the connecting column is provided with two connecting pieces, and the two connecting pieces are connected to both ends of the handle.

[0016] By adopting the above technical solution, the solution can facilitate the transportation of the cutting head structure through the device after the clamping connection of the device is stable through the combined structure of the handle and the connecting piece.

[0017] Preferably, the arc shell is provided with an opening at one end away from the docking magnet, the interior of the arc shell is hollow, the arc shell is slidably connected to an arc telescopic part, the end of the arc telescopic part away from the arc shell is connected to a docking part, and the docking part is facing the direction of the docking magnet.

[0018] By adopting the above technical solution, the present solution can achieve the closed combination effect of the device through the combination of the docking piece and the docking magnet.

[0019] Preferably, the rotating part is provided with an arc-shaped through groove, a fixed locking part is provided inside the arc-shaped through groove, the outer arc surface of the connecting column is provided with two mirror-symmetrical rotating parts, and the rotating part on the other side is provided with a nut, which is threadedly connected to the fixed locking part.

[0020] By adopting the above technical solution, this solution can achieve a symmetrical clamping effect on the cutting head through the rotating member.

[0021] Preferably, the clamping parts are symmetrically arranged on both sides of the handle, and an anti-slip layer is provided on the inner arc surface of the arc-shaped groove provided on the clamping part.

[0022] By adopting the above technical solution, the handle structure of this solution can facilitate the staff to carry the cutting head.

[0023] In summary, the present invention has at least one of the following beneficial effects:

[0024] This device is connected to the outer arc surface of the cutting head by clamping, thereby achieving the effect of combined connection of the cutting head. At the same time, the structure of the protective shell can cover and protect the position of the cutting head to prevent external collisions from affecting the surface of the cutting head. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a front view of an embodiment of an onboard protective cover for a cutting head of a tunnel boring machine according to the present invention;

[0027] Figure 2 This is a schematic structural diagram of the connecting column in an embodiment of the present utility model;

[0028] Figure 3 This is a schematic structural diagram of a rotating member in an embodiment of the present utility model;

[0029] Figure 4 for Figure 2 A magnified view of the structure at center A;

[0030] Figure 5 for Figure 2 A magnified view of the structure at point B in the middle;

[0031] Figure markings: 1. Connecting column; 2. Connecting member; 3. Clamping member; 301. Rotating member; 302. Mounting slot; 303. Mounting member; 304. Locking member; 305. Clamping member; 306. Arc groove; 307. Arc slot; 308. Fixed locking member; 4. Threaded member; 5. Threaded abutment member; 6. Protective member; 601. Telescopic connecting member; 602. Arc shell; 603. Docking magnet; 604. Arc telescopic member; 605. Docking member; 7. Handle. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 The utility model is described in further detail.

[0033] Example 1, as Figure 1-Figure 5 As shown, in order to solve the existing problems, in this embodiment, the utility model discloses an airborne protective cover for the cutting head of a tunnel boring machine, including a connecting column 1 and a connecting member 2 connected to its outer arc surface, the connecting column 1 is connected to a clamping component 3, one end of the connecting column 1 is connected to a threaded member 4, the threaded member 4 is threadedly connected to a threaded abutment member 5, a handle 7 is connected to the side of the connecting member 2, and the outer arc surface of the threaded member 4 is rotatably connected to a protective component 6.

[0034] The clamping component 3 includes a rotating member 301 rotatably connected to the connecting column 1 . An end of the rotating member 301 away from the connecting column 1 is provided with a mounting groove 302 , and an inner wall of the mounting groove 302 is slidably connected to a mounting member 303 .

[0035] The mounting member 303 is located inside the mounting groove 302, and a locking member 304 is threadedly connected to one side of the mounting member 303, and a clamping member 305 is connected to the other side of the mounting member 303. An arc-shaped groove 306 is provided on the side of the clamping member 305. The locking member 304 contacts and squeezes the side of the rotating member 301, and the diameter of the clamping member 305 is larger than the internal width of the mounting groove 302.

[0036] The protection component 6 includes a telescopic connection member 601 rotatably connected to the threaded member 4 . One end of the telescopic connection member 601 away from the threaded member 4 is connected to an arc-shaped shell 602 , and one end of the arc-shaped shell 602 is connected to a docking magnet 603 .

[0037] The handle 7 is provided with an anti-slip layer on its surface, and the outer arc surface of the connecting column 1 is provided with two connecting parts 2 , which are connected to both ends of the handle 7 .

[0038] The specific working principle is: this device can achieve the protection effect of the cutting head surface. Compared with traditional devices, this device can be stably installed on the outer arc surface of the cutting head, thereby improving the stability of the device and reducing the difficulty of single-person operation.

[0039] When the device is in use, the handle 7 can be used to facilitate one person to carry the device and place it above the cutting head. At this time, the clamping parts 305 are symmetrically distributed on both sides of the cutting head. At this time, the appropriate clamping parts 305 are replaced according to the diameter of the cutting head. After the replacement is completed, the mounting part 303 on the side of the clamping part 305 is inserted into the mounting groove 302. At this time, the locking part 304 is rotated from the other side so that the locking part 304 contacts and squeezes the side of the rotating part 301, thereby achieving the effect of fixing the current clamping part 305. At this time, the two symmetrical clamping structures are brought close to each other and wrapped around the outer arc side of the cutting head. At this time, the fixed locking part 308 is passed through the arc groove 307 on the rotating part 301 on one side, and then passed through the arc groove 307 on the rotating part 301 on the other side and threadedly connected to the nut on the other side. As the fixed locking part 308 rotates, the two rotating parts 301 are squeezed against each other, thereby achieving a fixing effect and preventing the rotating part 301 from rotating accidentally.

[0040] At this time, the cutting head can be lifted by the handle 7, and the threaded abutment 5 is rotated to remove the telescopic connection member 601, and the arc-shaped shell 602 can be used to cover the outside of one end of the cutting head. After aligning the cutting head, the telescopic connection member 601 is placed on the outer arc surface of the threaded member 4. At this time, the threaded abutment 5 is rotated to limit and clamp the telescopic connection member 601. At this time, the telescopic connection member 601 cannot rotate, and the sliding arc-shaped telescopic member 604 can wrap the lower half of the cutting head. At the same time, the combination of the docking magnet 603 and the docking member 605 can ensure that the arc-shaped telescopic member 604 and the arc-shaped shell 602 are docked stably, reducing the risk of accidental opening.

[0041] Example 2, as Figure 1-Figure 5 As shown, in order to solve the existing problems in this embodiment, based on the same concept as the above-mentioned embodiment 1, the airborne protective cover of the tunnel boring machine cutting head also includes: the end of the arc-shaped shell 602 away from the docking magnet 603 is provided with an opening, the interior of the arc-shaped shell 602 is hollow, the arc-shaped shell 602 is slidably connected to the arc-shaped telescopic part 604, the end of the arc-shaped telescopic part 604 away from the arc-shaped shell 602 is connected to the docking part 605, and the docking part 605 is facing the direction of the docking magnet 603.

[0042] The rotating member 301 is provided with an arc-shaped through groove 307, and a fixed locking member 308 is provided inside the arc-shaped through groove 307. The outer arc surface of the connecting column 1 is provided with two mirror-symmetrical rotating members 301, and the rotating member 301 on the other side is provided with a nut, which is threadedly connected to the fixed locking member 308.

[0043] The clamping parts 3 are symmetrically arranged on both sides of the handle 7 , and an anti-slip layer is provided on the inner arc surface of the arc groove 306 provided on the clamping part 305 .

[0044] The specific working principle is: the device can achieve the effect of protecting the cutting head from the cover, and the device can facilitate the staff to carry the cutting head structure after the assembly connection, thereby reducing the difficulty of operating the device.

[0045] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An airborne protective cover for a cutting head of a roadheader, comprising a connecting column (1) and a connecting piece (2) connected to the outer arc surface thereof, characterized in that: The connecting column (1) is connected to a clamping component (3), one end of the connecting column (1) is connected to a threaded component (4), the threaded component (4) is threadedly connected to a threaded abutting component (5), a handle (7) is connected to the side of the connecting component (2), and the outer arc surface of the threaded component (4) is rotatably connected to a protective component (6).

2. The onboard protective cover of the cutting head of a roadheader according to claim 1, characterized in that: The clamping component (3) comprises a rotating member (301) rotatably connected to the connecting column (1); an end of the rotating member (301) away from the connecting column (1) is provided with a mounting groove (302); and an inner wall of the mounting groove (302) is slidably connected to a mounting member (303).

3. The onboard protective cover of the cutting head of a tunnel boring machine according to claim 2, characterized in that: The mounting member (303) is located inside the mounting slot (302), one side of the mounting member (303) is threadedly connected to a locking member (304), and the other side of the mounting member (303) is connected to a clamping member (305), and an arc-shaped groove (306) is provided on the side of the clamping member (305). The locking member (304) contacts and squeezes the side of the rotating member (301), and the diameter of the clamping member (305) is larger than the internal width of the mounting slot (302).

4. The onboard protective cover of the cutting head of a roadheader according to claim 3, characterized in that: The protective component (6) comprises a telescopic connecting member (601) rotatably connected to the threaded member (4), one end of the telescopic connecting member (601) away from the threaded member (4) is connected to an arc-shaped housing (602), and one end of the arc-shaped housing (602) is connected to a docking magnet (603).

5. The onboard protective cover of the cutting head of a roadheader according to claim 4, characterized in that: An opening is provided at one end of the arc-shaped shell (602) away from the docking magnet (603); the interior of the arc-shaped shell (602) is hollow; the arc-shaped shell (602) is slidably connected to an arc-shaped telescopic member (604); an end of the arc-shaped telescopic member (604) away from the arc-shaped shell (602) is connected to a docking member (605); and the docking member (605) faces the docking magnet (603).

6. The onboard protective cover of the cutting head of a roadheader according to claim 5, characterized in that: The surface of the handle (7) is provided with an anti-slip layer, and the outer arc surface of the connecting column (1) is provided with two connecting pieces (2), and the two connecting pieces (2) are connected to both ends of the handle (7).

7. The onboard protective cover of the cutting head of a roadheader according to claim 6, characterized in that: The rotating member (301) is provided with an arcuate through groove (307), a fixed locking member (308) is provided inside the arcuate through groove (307), and the outer arc surface of the connecting column (1) is provided with two mirror-symmetrical rotating members (301), and the rotating member (301) on the other side is provided with a nut, which is threadedly connected to the fixed locking member (308).

8. The onboard protective cover of the cutting head of a roadheader according to claim 7, characterized in that: The clamping parts (3) are symmetrically arranged on both sides of the handle (7), and an anti-slip layer is provided on the inner arc surface of the arc-shaped groove (306) provided on the clamping part (305).

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