Protective device for cutting head of heading machine

Abstract

The utility model discloses a heading machine cutting head protective device which comprises a bottom plate, a sliding groove, an adjusting mechanism, a connecting mechanism and a protective cover, the sliding groove used for installing the adjusting mechanism is formed in the middle of the upper end of the bottom plate, and the adjusting mechanism used for controlling the protective cover to ascend and descend and adjusting the angle of the protective cover is installed in the sliding groove. Connecting mechanisms used for being connected with protective covers are installed on the front portions and the rear portions of the two sides of the upper end of the bottom plate, and the protective covers used for protecting the cutting head of the heading machine are installed on the upper portions of the connecting mechanisms. The protective cover has the advantages that by installing the adjusting mechanism and the connecting mechanism, the protective cover can be conveniently adjusted according to the heights of cutting heads of different heading machines, the angle of the protective cover can be adjusted according to the parking angle of the cutting heads of the heading machines and the flatness of the ground, and the protective cover is convenient to use and higher in applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel boring machine machinery, in particular to a tunnel boring machine cutting head protection device. Background Art

[0002] At present, cantilevered tunnel boring machines at home and abroad are the main equipment for mining equipment and underground engineering. Both the horizontal axis type and the vertical axis type have their own advantages and have been widely used. Tunnel boring machines are widely used in coal mining and tunneling as well as urban underground space construction. They are a combined unit that can realize cutting, loading, reloading, reloading and transportation, mobilization and walking, and spray dust suppression. The cutting head is the working mechanism of the tunnel boring machine that directly participates in cutting. The cutting teeth are arranged on the cutting head according to a certain pattern and are used for coal and rock crushing. The cutting head has sharp corners. If the worker operates improperly or the machine fails and causes the cutting head to rotate, it will cause casualties. In addition, when the cutting head is stationary, workers will be injured if they bump into the cutting head. Therefore, there are certain safety hazards in the tunnel boring machine, so the cutting head needs to be protected when not in use.

[0003] The existing technology has disadvantages:

[0004] The existing coal mining and tunneling machine cutting head protection device is installed by directly plugging it into the outside of the cutting head, but lacks a support and fixing mechanism for the protection device. The operator needs to transfer the protection device by manual transportation, which is more laborious when used and affects the efficiency during use. Although the problem of inconvenient movement of the protection cover can be solved by directly installing a pushable support frame, the ground is uneven during the use of the tunneling machine, and the support frame cannot be used for different tunneling machine cutting head heights. When the parking angle of the tunneling machine cutting head is not flat, the support frame will become a burden because it cannot be adjusted, and it cannot be used quickly and conveniently. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the above-mentioned defects and provide a cutting head protection device for a roadheader.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is: a cutting head protection device for a tunnel boring machine, characterized in that it comprises:

[0007] A bottom plate, wherein a slide groove is provided in the middle of the upper end of the bottom plate;

[0008] An adjusting mechanism, wherein the adjusting mechanism is arranged inside the slide groove;

[0009] A connecting mechanism, the connecting mechanism is arranged at the front and rear parts of both sides of the upper end of the bottom plate, the connecting mechanism comprises a fixing hole, a support frame and a sliding rod, the fixing holes are opened at the front and rear parts of both sides of the upper end of the bottom plate, the fixing holes penetrate the bottom plate, the support frame is fixedly connected inside the fixing holes, and the sliding rod is inserted inside the support frame;

[0010] The protective cover is arranged above the bottom plate, and the four sliding rods are respectively hinged to the front and rear parts of both sides of the lower end of the protective cover.

[0011] As an improvement, the adjustment mechanism includes:

[0012] A fixed block, the fixed block being fixedly connected to the middle portion of the inner side of the slide groove;

[0013] A fixing groove, which is formed at the front and rear ends of the fixing block;

[0014] A screw rod, the screw rod is rotatably connected to the inside of the fixing groove through a bearing;

[0015] Slide blocks, two of which are respectively inserted into the front and rear sides of the inner part of the slide groove;

[0016] A threaded hole, the threaded hole is opened at the front end of the slider, and the slider is threadedly connected to the outside of the screw rod through the threaded hole;

[0017] A support rod, the support rod is hinged to the upper end of the slider, and one end of the two support rods away from the slider is hinged to the front and rear sides of the middle part of the lower end of the protective cover;

[0018] The driving mechanism is arranged at the front and rear sides of the inner part of the slide slot.

[0019] As an improvement, the driving mechanism comprises:

[0020] A mounting groove, the mounting groove being opened at the front and rear sides of the inner part of the slide groove;

[0021] A drive box is fixedly connected to the inside of the mounting groove, and the lead screw is fixedly connected to the middle part of one side of the drive box that is close to each other.

[0022] As an improvement, the lower end of the support frame is fixedly connected with a walking wheel.

[0023] As an improvement, the upper front end of the protective cover is rotatably connected to a protective plate, the lower middle ends of both sides of the protective cover are rotatably connected to telescopic rods, and the upper ends of the telescopic rods are rotatably connected to the middle of both sides of the protective plate.

[0024] The advantages of the utility model compared with the prior art are: the utility model is equipped with an adjusting mechanism and a connecting mechanism, and the two screws are driven to rotate at the same time through a driving box, so that a slider threadedly connected to the outside of the screw slides under the restriction of the slide groove and the screw, and the protective cover is controlled to be raised and lowered under the restriction of the slide rod and the support frame through the connection of the support rod, and can be conveniently adjusted according to the height of the cutting head of the different tunneling machines. After adjusting the height of the protective cover, the two driving boxes are driven separately, and through the hinge between the protective cover and the slide rod, the angle of the protective cover can be adjusted according to the parking angle of the cutting head of the tunneling machine and the flatness of the ground. It is convenient to use and has higher applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a stereogram of the utility model.

[0026] Figure 2 It is a half-section view of the utility model.

[0027] Figure 3 It is a half-section view of the box body of the utility model.

[0028] Figure 4 It is a schematic diagram of the regulating mechanism of the utility model.

[0029] Figure 5 It is a cross-sectional view of the connecting mechanism of the utility model.

[0030] As shown in the figure: 1. Base plate; 11. Slide groove; 2. Adjustment mechanism; 21. Fixed block; 22. Fixed groove; 23. Screw rod; 24. Slider; 25. Threaded hole; 26. Support rod; 3. Connection mechanism; 31. Fixed hole; 32. Support frame; 33. Slide rod; 4. Protective cover; 5. Drive mechanism; 51. Installation groove; 52. Drive box; 6. Travel wheel; 7. Protective plate; 71. Telescopic rod. DETAILED DESCRIPTION

[0031] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Embodiment 1:

[0034] like Figures 1 to 5 As shown, the present embodiment proposes a cutting head protection device for a tunnel boring machine, comprising a base plate 1, a slide groove 11, an adjustment mechanism 2, a connecting mechanism 3, a fixing hole 31, a support frame 32, a slide rod 33 and a protective cover 4. A slide groove 11 is provided in the middle of the upper end of the base plate 1, and an adjustment mechanism 2 for controlling the lifting and lowering of the protective cover 4 and adjusting the angle of the protective cover 4 is installed inside the slide groove 11. A connecting mechanism 3 for connecting the protective cover 4 is installed at the front and rear parts of both sides of the upper end of the base plate 1. The connecting mechanism 3 comprises fixing holes 31 provided at the front and rear parts of both sides of the upper end of the base plate 1 for installing the supporting frame 32, a supporting frame 32 for keeping the protective cover 4 stable when it is lifted or lowered is fixedly connected inside the fixing hole 31, a slide rod 33 for keeping the protective cover 4 stable when it is lifted or lowered is inserted inside the support frame 32, and a protective cover 4 for protecting the cutting head of the tunnel boring machine is installed at the upper end of the slide rod 33.

[0035] The adjusting mechanism 2 includes a fixed block 21, a fixed slot 22, a screw rod 23, a slider 24, a threaded hole 25, a support rod 26 and a driving mechanism 5. The fixed block 21 for fixing the screw rod 23 is fixedly connected to the middle of the inner side of the slide slot 11. The front and rear ends of the fixed block 21 are provided with fixed slots 22 for installing the screw rod 23. The screw rod 23 for controlling the lifting and lowering of the protective cover 4 and adjusting the angle of the protective cover 4 is rotatably connected to the inside of the fixed slot 22 through a bearing. The slider 24 for controlling the lifting and lowering of the protective cover 4 and adjusting the angle of the protective cover 4 is plugged into the front and rear sides of the slide slot 11. A threaded hole 25 is provided in the middle of the front end of the block 24, which passes through the slider 24 and is used to convert the rotational motion of the screw rod 23 into linear motion. The two sliders 24 are threadedly connected to the outer sides of the two screw rods 23 through the threaded holes 25. A support rod 26 is hinged at the upper end of the slider 24 and is used to convert the lateral linear motion of the slider 24 into up and down motion for controlling the lifting and lowering of the protective cover 4 and adjusting the angle of the protective cover 4. The end of the support rod 26 away from the slider 24 is hinged to the front and rear sides of the middle of the lower end of the protective cover 4, and a driving mechanism 5 for driving the screw rod 23 to rotate is installed on the front and rear sides inside the slide groove 11.

[0036] The driving mechanism 5 includes a mounting groove 51 and a driving box 52. The mounting groove 51 for installing and fixing the driving box 52 is opened on the front and rear sides inside the slide groove 11. The driving box 52 for driving the screw rod 23 to rotate is fixedly connected inside the mounting groove 51. The two driving boxes 52 are respectively fixedly connected to the sides of the two screw rods 23 away from each other.

[0037] Embodiment 2:

[0038] The solution in Example 1 is further introduced below in combination with a specific working method, as described below:

[0039] Travel wheels 6 are installed at the lower ends of the four support frames 32 to facilitate the movement of the whole. A protective plate 7 for closing the protective cover 4 is rotatably connected to the front end of the protective cover 4. Telescopic rods 71 ​​for controlling the opening and closing of the protective plate 7 are rotatably connected to both sides of the protective plate 7. The telescopic rods 71 ​​are electrically driven, and the ends of the two telescopic rods 71 ​​away from the protective plate 7 are rotatably connected to the two sides of the protective cover 4 respectively.

[0040] The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of the present disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting head protection device for a tunnel boring machine, characterized in that: include: A bottom plate (1), wherein a slide groove (11) is provided in the middle of the upper end of the bottom plate (1); An adjusting mechanism (2), wherein the adjusting mechanism (2) is arranged inside the slide groove (11); A connecting mechanism (3), the connecting mechanism (3) being arranged at the front and rear parts of both sides of the upper end of the bottom plate (1), the connecting mechanism (3) comprising a fixing hole (31), a support frame (32) and a sliding rod (33), the fixing hole (31) being opened at the front and rear parts of both sides of the upper end of the bottom plate (1), the fixing hole (31) passing through the bottom plate (1), the support frame (32) being fixedly connected to the inside of the fixing hole (31), and the sliding rod (33) being inserted into the inside of the support frame (32); A protective cover (4) is arranged above the bottom plate (1), and the four sliding rods (33) are respectively hinged to the front and rear parts of both sides of the lower end of the protective cover (4).

2. A cutting head protection device for a roadheader according to claim 1, characterized in that: The regulating mechanism (2) comprises: A fixed block (21), wherein the fixed block (21) is fixedly connected to the middle portion of the inner side of the slide groove (11); A fixing groove (22), wherein the fixing groove (22) is formed at the front and rear ends of the fixing block (21); A screw rod (23), wherein the screw rod (23) is rotatably connected to the interior of the fixing groove (22) via a bearing; Slide blocks (24), wherein two slide blocks (24) are respectively inserted into the front and rear sides of the inner part of the slide groove (11); A threaded hole (25), wherein the threaded hole (25) is formed at the front end of the slider (24), and the slider (24) is threadedly connected to the outside of the screw rod (23) through the threaded hole (25); A support rod (26), wherein the support rod (26) is hinged to the upper end of the slider (24), and one end of the two support rods (26) away from the slider (24) is hinged to the front and rear sides of the middle part of the lower end of the protective cover (4); A driving mechanism (5), wherein the driving mechanism (5) is arranged at the front and rear sides of the interior of the slide groove (11).

3. A cutting head protection device for a roadheader according to claim 2, characterized in that: The driving mechanism (5) comprises: A mounting groove (51), wherein the mounting groove (51) is opened at the front and rear sides of the interior of the slide groove (11); A drive box (52), wherein the drive box (52) is fixedly connected to the inside of the mounting groove (51), and the screw rod (23) is fixedly connected to the middle part of one side of the drive box (52) where the two sides are close to each other.

4. A cutting head protection device for a roadheader according to claim 1, characterized in that: The lower end of the support frame (32) is fixedly connected with a walking wheel (6).

5. A cutting head protection device for a roadheader according to claim 1, characterized in that: The upper front end of the protection cover (4) is rotatably connected to a protection plate (7), the lower middle ends of both sides of the protection cover (4) are rotatably connected to telescopic rods (71), and the upper ends of the telescopic rods (71) are rotatably connected to the middle of both sides of the protection plate (7).

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