Support type comprehensive heading machine

Abstract

The invention belongs to the technical field of heading machines, and particularly relates to a supporting type comprehensive heading machine which comprises a heading machine body and a supporting assembly, the supporting assembly is arranged on the heading machine body and comprises a supporting plate, a connecting arm and a supporting arm, the connecting arm is hinged to the supporting arm, a rotary motor is fixed to the connecting arm, and the supporting arm is hinged to the supporting plate. The supporting plate is fixedly connected with an output shaft of the rotary motor, and the supporting plate is driven by the rotary motor to rotate. The upper surface of the supporting plate is a cambered surface, and the lower surface of the supporting plate is a plane; an angle adjusting limiting mechanism is arranged between the connecting arm and the supporting arm, and the angle between the connecting arm and the supporting arm can be adjusted and rotation of the supporting plate can be limited through the angle adjusting limiting mechanism. The supporting arm is hinged to the heading machine body, and an adjusting oil cylinder is arranged at the hinged position. The support plate is driven to rotate by the rotary motor, so that the cambered surface faces upwards to support the top plate of the arched roadway; otherwise, the plane faces upwards, and the top plate of the rectangular roadway or the trapezoidal roadway is supported.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel boring machines, and in particular relates to a supporting comprehensive tunnel boring machine. Background Art

[0002] Temporary supports and beam supports are two different devices, each of which requires a certain amount of space to be installed. Due to the limited space available on the top of the tunnel boring machine, it is not possible to install both devices on the top of the tunnel boring machine at the same time.

[0003] To this end, the invention patent application with patent application number 202210942292.5 discloses a support assembly and a tunnel boring machine, which integrates the support beam assembly on the support assembly, improves the functional integration of the tunnel boring machine, and saves equipment space; in addition, the support plate and the support beam assembly can share a set of drive assemblies.

[0004] However, in actual use, the shape of the tunnel includes arch, rectangle or trapezoid; and the first support plate and the second support plate in the above invention are arc-shaped, that is, they are only suitable for roof support work in arched tunnels, and cannot adapt to support work in rectangular tunnels or trapezoidal tunnels (the roof structure is a flat structure). Summary of the invention

[0005] In view of the above technical problems, the present invention provides a supporting comprehensive tunneling machine, the supporting structure of which can adapt to tunnels of different shapes and can provide temporary support for the roofs of different tunnels.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: A supporting integrated tunnel boring machine comprises a tunnel boring machine body and a supporting assembly, wherein the supporting assembly is arranged on the tunnel boring machine body, and the supporting assembly comprises a supporting plate, a connecting arm and a supporting arm, wherein the connecting arm is hinged to the supporting arm, a rotary motor is fixed to the connecting arm, the supporting plate is fixedly connected to the output shaft of the rotary motor, and the supporting plate is driven to rotate by the rotary motor; the upper surface of the supporting plate is an arc surface, and the lower surface of the supporting plate is a plane; an angle adjustment limit mechanism is arranged between the connecting arm and the supporting arm, and the angle between the connecting arm and the supporting arm is adjusted by the angle adjustment limit mechanism and the rotation of the supporting plate can be limited; the supporting arm is hinged to the tunnel boring machine body, and an adjusting oil cylinder is arranged between the supporting arm and the tunnel boring machine body.

[0007] The angle adjustment and limiting mechanism includes a driving cylinder and a driving plate, and the two ends of the driving cylinder are fixedly connected to the connecting arm and the driving plate respectively; a support rod is fixedly connected to the driving plate, and a support seat is fixedly connected to the support arm, and the support seat is provided with an inclined groove that is slidably connected to the support rod; a limit rod is provided on the driving plate, and a limit seat that is plugged into the limit rod is provided on the support plate.

[0008] There are two limit rods, which are respectively connected to the driving plate through thrust cylinders; the ends of the limit rods are conical.

[0009] It also includes a support beam frame, which is slidably connected to the support plate, and a first reset spring is provided between the support beam frame and the support plate; the support beam frame is fixedly connected to a first driving rod; the first driving rod is slidably connected to the support plate; one of the limit rods passes through the limit seat and contacts the end of the first driving rod to push the first driving rod to move.

[0010] The upper and lower ends of the supporting beam frame are provided with connecting slots.

[0011] It also includes a clamping mechanism, which includes a second driving rod and two clamping arms, both of which are hinged to the beam support frame; a driving rack is slidably connected to the beam support frame, and a second return spring is provided between the driving rack and the beam support frame; the driving rack is located between the two clamping arms, and both clamping arms are provided with a driving gear that meshes with the driving rack; the second driving rod is slidably connected to the support plate, and the front end of the second driving rod is fixedly connected to the driving rack; another limiting rod passes through the limiting seat and contacts with the rear end of the second driving rod, pushing the second driving rod to move.

[0012] The upper and lower ends of the supporting beam frame are provided with connecting grooves corresponding to the clamping arms.

[0013] The supporting arm is a telescopic arm.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The upper surface of the support plate is an arc surface, and the lower surface of the support plate is a plane surface. By driving the support plate to rotate through a rotary motor, the arc surface can be turned upward to support the top plate of an arched tunnel (the top plate is an arc); conversely, the plane surface can be turned upward to support the top plate of a rectangular tunnel or a trapezoidal tunnel (the top plate is a plane). That is, this roadheader can adapt to the top plate support of three different shapes of tunnels: arched tunnels, rectangular tunnels, or trapezoidal tunnels.

[0015] An angle adjustment limit mechanism is provided, which can, on the one hand, limit the rotation of the support plate during the support process to ensure the stability of the support; on the other hand, it can adjust the angle between the connecting arm and the support arm to adapt to the angle change of the top plate.

[0016] A beam support frame is provided, which can lift the top beam to be installed to the required height for installation. A first driving rod is provided, which moves the beam support frame accordingly to adjust the size of the working space.

[0017] A clamping mechanism is provided, and the clamping mechanism is driven by the movement of the second driving rod; the top beam on the beam support frame can be clamped by the clamping mechanism to prevent it from moving or falling off during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic structural diagram of the support assembly of the present invention in one direction; Figure 3 yes Figure 2 A partial enlarged view of the middle A; Figure 4 It is a structural schematic diagram of the support assembly of the present invention in another direction; Figure 5 yes Figure 4 A partial enlarged view of point B in the middle; Figure 6 It is a structural schematic diagram of the support assembly of the present invention in another direction; Figure 7 is a cross-sectional view of the support assembly of the present invention; Figure 8 yes Figure 7 A partial enlarged view of point C in the middle; Among them: 1 is the tunnel boring machine body, 2 is the support assembly, 20 is the support plate, 200 is the arc surface, 201 is the plane, 202 is the limit block, 21 is the connecting arm, 22 is the support arm, 23 is the rotary motor, 24 is the angle adjustment limit mechanism, 240 is the driving cylinder, 241 is the driving plate, 242 is the support rod, 243 is the support seat, 2430 is the inclined groove, 245 is the limit rod, 246 is the limit seat, 247 is the thrust cylinder, 3 is the adjusting cylinder, 4 is the supporting beam frame, 40 is the connecting slot, 41 is the connecting groove, 42 is the limit slot, 5 is the first reset spring, 6 is the first driving rod, 7 is the clamping mechanism, 70 is the second driving rod, 71 is the clamping arm, 72 is the driving rack, 73 is the second reset spring, and 74 is the driving gear. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] like Figure 1-8 As shown, a support type integrated tunnel boring machine comprises a tunnel boring machine body 1 and a support assembly 2, wherein the support assembly 2 is arranged on the tunnel boring machine body 1, and the support assembly 2 comprises a support plate 20, a connecting arm 21 and a support arm 22. The support arm 22 is hinged to the tunnel boring machine body 1, and an adjusting oil cylinder 3 is arranged between the support arm 22 and the tunnel boring machine body 1, and the two ends of the adjusting oil cylinder 3 are respectively hinged to the support arm 22 and the tunnel boring machine body 1, and the angle between the support arm 22 and the tunnel boring machine body 1 can be changed by adjusting the extension and contraction of the oil cylinder 3. The support arm 22 preferably adopts a telescopic arm in the prior art.

[0021] A rotary motor 23 is fixed on the connecting arm 21 , and the supporting plate 20 is fixedly connected to the output shaft of the rotary motor 23 , and the supporting plate 20 is driven to rotate by the rotary motor 23 ; the upper surface of the supporting plate 20 is an arc surface 200 , and the lower surface of the supporting plate 20 is a plane 201 .

[0022] When it is necessary to support the roof of an arched tunnel (the roof is an arc), the support plate 20 is driven to rotate by the rotary motor 23 so that its arc surface 200 faces upward; when it is necessary to support the roof of a rectangular tunnel or a trapezoidal tunnel (the roof is a plane), the support plate 20 is driven to rotate by the rotary motor 23 so that its plane 201 faces upward. That is, the tunnel boring machine can adapt to the roof support of three different shapes of tunnels, namely, an arched tunnel, a rectangular tunnel or a trapezoidal tunnel.

[0023] The connecting arm 21 is hinged with the supporting arm 22, and an angle adjustment and limiting mechanism 24 is provided between the connecting arm 21 and the supporting arm 22. The angle between the connecting arm 21 and the supporting arm 22 can be adjusted by the angle adjustment and limiting mechanism 24, so as to adapt to the inclination change of the tunnel roof. In addition, the supporting plate 20 can also be limited by the angle adjustment and limiting mechanism 24 to prevent it from rotating during the supporting process.

[0024] Furthermore, the angle adjustment and limiting mechanism 24 includes a driving cylinder 240 and a driving plate 241 . The two ends of the driving cylinder 240 are fixedly connected to the connecting arm 21 and the driving plate 241 , respectively. The driving plate 241 can be driven to move by the extension and retraction of the driving cylinder 240 .

[0025] A support rod 242 is fixedly connected to the driving plate 241, a support seat 243 is fixedly connected to the support arm 22, and an inclined groove 2430 is provided on the support seat 243 for sliding connection with the support rod 242. When the driving plate 241 moves, the support rod 242 is driven to move along the inclined groove 2430, thereby changing the inclination angle between the connecting arm 21 and the support arm 22, and further changing the inclination angle of the support plate 20.

[0026] A limiting rod 245 is provided on the driving plate 241, and a limiting seat 246 is provided on the supporting plate 20 to be plugged with the limiting rod 245. When the driving plate 241 moves, the limiting rod 245 is driven to be inserted into the limiting seat 246, thereby limiting the rotation of the supporting plate 20.

[0027] When the support plate 20 needs to be rotated, the driving plate 241 is first driven by the driving cylinder 240 to move in the opposite direction, so that the limit rod 245 is moved out of the limit seat 246; then the support plate 20 is driven to rotate by the rotary motor 23. After the support plate 20 rotates, the limit rod 245 is inserted into the limit seat 246 by moving the driving plate 241; at the same time, the support rod 242 moves along the inclined slot 2430.

[0028] Furthermore, preferably, two limiting rods 245 are provided, and the two limiting rods 245 are respectively connected to the driving plate 241 through the thrust cylinder 247; the two ends of the thrust cylinder 247 are respectively fixedly connected to the driving plate 241 and the limiting rod 245. The end of the limiting rod 245 is conical, so as to facilitate insertion into the limiting seat 246.

[0029] Furthermore, it also includes a beam support frame 4 for supporting the top beam. The beam support frame 4 is slidably connected to the support plate 20, and a corresponding slide groove is provided on the support plate 20. A first return spring 5 is provided between the beam support frame 4 and the support plate 20, and the two ends of the first return spring 5 are fixedly connected to the beam support frame 4 and the support plate 20 respectively.

[0030] Specifically: a limit groove 42 is provided on the support beam frame 4, and a limit block 202 cooperating with the limit groove 42 is fixed on the support plate 20; in the initial state, the side of the limit block 202 is abutted against the limit groove 42 by the first return spring 5, that is, in the initial state, the support beam frame 4 and the support plate 20 are in a state of minimum gap.

[0031] The first driving rod 6 is fixedly connected to the beam support frame 4, and the first driving rod 6 is slidably connected to the support plate 20. One of the limit rods 245 passes through the limit seat 246 and contacts the end of the first driving rod 6, pushing the first driving rod 6 to move. When the first driving rod 6 moves, it will drive the beam support frame 4 to move along the support plate 20, so that the distance between the beam support frame 4 and the support plate 20 increases (the first return spring 5 generates elastic potential energy), that is, the size of the working space can be adjusted to ensure that the anchor drilling rig has enough working space.

[0032] Connecting slots 40 are provided at the upper and lower ends of the supporting beam frame 4, that is, no matter the curved surface 200 or the flat surface 201 faces upward, the top beam can be placed in the connecting slots 40 to fix the top beam.

[0033] Furthermore, in order to prevent the top beam from falling off due to shaking caused by excessive lifting distance, a clamping mechanism 7 is also provided, which includes a second driving rod 70 and two clamping arms 71, both of which are hinged to the beam support frame 4; a driving rack 72 is slidably connected to the beam support frame 4, and a second return spring 73 is provided between the driving rack 72 and the beam support frame 4. The two ends of the second return spring 73 are fixedly connected to the driving rack 72 and the beam support frame 4, respectively. In the initial state, the two clamping arms 71 are in an open state through the second return spring 73.

[0034] The driving rack 72 is located between the two clamping arms 71, and the two clamping arms 71 are fixed with driving gears 74 meshing with the driving rack 72. When the driving rack 72 moves (the second reset spring 73 generates elastic potential energy), it meshes with the driving gear 74, thereby driving the two clamping arms 71 to rotate and close, thereby clamping the top beam to prevent it from falling off during the jacking process. When the jacking is lifted to an appropriate height (there is a certain distance from the tunnel roof to ensure that the two clamping arms 71 can rotate in the opposite direction), the driving rack 72 moves in the opposite direction, so that the two clamping arms 71 rotate in the opposite direction and separate from the top beam; finally, after a short distance of jacking, the construction of the top beam can be carried out.

[0035] Two clamping arms 71 are provided, that is, the connection slots 40 at the upper and lower ends of the beam support frame 4 correspond to one clamping arm 71. That is, no matter the curved surface 200 or the flat surface 201 faces upward, the top beam in the connection slot 40 can be clamped.

[0036] The second driving rod 70 is slidably connected to the support plate 20, and the front end of the second driving rod 70 is fixedly connected to the driving rack 72; another limiting rod 245 passes through the limiting seat 246 and contacts the rear end of the second driving rod 70, pushing the second driving rod 70 to move, thereby driving the driving rack 72 to move accordingly.

[0037] Furthermore, connecting grooves 41 corresponding to the clamping arm 71 are provided at the upper and lower ends of the support beam frame 4; after the clamping arm 71 is rotated and closed, part of it can be placed in the connecting groove 41, thereby preventing the clamping arm 71 from exceeding the support beam frame 4 by too much height.

[0038] Only the preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the above embodiments.

Claims

1. A supporting type comprehensive tunnel boring machine, characterized in that: The invention comprises a tunnel boring machine body (1) and a support assembly (2), wherein the support assembly (2) is arranged on the tunnel boring machine body (1), the support assembly (2) comprises a support plate (20), a connecting arm (21) and a support arm (22), the connecting arm (21) is hinged to the support arm (22), a rotary motor (23) is fixed to the connecting arm (21), the support plate (20) is fixedly connected to the output shaft of the rotary motor (23), and the support plate (20) is driven to rotate by the rotary motor (23); the support plate (20) is connected to the supporting arm (22) and the supporting arm (21) is hinged to the supporting arm (22), a rotary motor (23) is fixed to the connecting arm (21), and the output shaft of the rotary motor (23) is fixedly connected to the supporting plate (20). The upper surface of the guard plate (20) is a curved surface (200), and the lower surface of the support plate (20) is a flat surface (201); an angle adjustment limit mechanism (24) is provided between the connecting arm (21) and the support arm (22), and the angle between the connecting arm (21) and the support arm (22) is adjusted by the angle adjustment limit mechanism (24) and the rotation of the support plate (20) can be limited; the support arm (22) is hinged to the tunnel boring machine body (1), and an adjustment cylinder (3) is provided between the support arm (22) and the tunnel boring machine body (1).

2. A supporting integrated tunnel boring machine according to claim 1, characterized in that: The angle adjustment and limiting mechanism (24) comprises a driving cylinder (240) and a driving plate (241), wherein two ends of the driving cylinder (240) are fixedly connected to the connecting arm (21) and the driving plate (241), respectively; a support rod (242) is fixedly connected to the driving plate (241), a support seat (243) is fixedly connected to the support arm (22), and an inclined groove (2430) is provided on the support seat (243) and is slidably connected to the support rod (242); a limiting rod (245) is provided on the driving plate (241), and a limiting seat (246) plugged into the limiting rod (245) is provided on the supporting plate (20).

3. A supporting integrated tunneling machine according to claim 2, characterized in that: Two limit rods (245) are provided, and the two limit rods (245) are respectively connected to the driving plate (241) via a thrust oil cylinder (247); the end of the limit rod (245) is conical.

4. A supporting integrated tunnel boring machine according to claim 3, characterized in that: It also includes a beam support frame (4), the beam support frame (4) is slidably connected to the support plate (20), and a first return spring (5) is provided between the beam support frame (4) and the support plate (20); the beam support frame (4) is fixedly connected to a first drive rod (6); the first drive rod (6) is slidably connected to the support plate (20); one of the limit rods (245) passes through the limit seat (246) and contacts the end of the first drive rod (6), thereby pushing the first drive rod (6) to move.

5. A supporting integrated tunnel boring machine according to claim 4, characterized in that: The upper and lower ends of the supporting beam frame (4) are provided with connecting slots (40).

6. A supporting integrated tunnel boring machine according to claim 5, characterized in that: The invention also comprises a clamping mechanism (7), wherein the clamping mechanism (7) comprises a second driving rod (70) and two clamping arms (71), wherein the two clamping arms (71) are both hinged to the beam support frame (4); a driving rack (72) is slidably connected to the beam support frame (4), and a second return spring (73) is provided between the driving rack (72) and the beam support frame (4); the driving rack (72) is located between the two clamping arms (71), and the two clamping arms (71) are both provided with a driving gear (74) meshing with the driving rack (72); the second driving rod (70) is slidably connected to the support plate (20), and the front end of the second driving rod (70) is fixedly connected to the driving rack (72); another limiting rod (245) passes through the limiting seat (246) and contacts the rear end of the second driving rod (70), thereby pushing the second driving rod (70) to move.

7. A supporting integrated tunnel boring machine according to claim 6, characterized in that: The upper and lower ends of the supporting beam frame (4) are provided with connecting grooves (41) corresponding to the clamping arms (71).

8. The supporting integrated tunnel boring machine according to claim 1, characterized in that: The supporting arm (22) is a telescopic arm.

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