Auxiliary installation equipment for air supply and smoke exhaust pipes for underground cavern excavation

Abstract

The present invention discloses an auxiliary installation device for an air supply and smoke exhaust pipe for underground cavern excavation, which relates to the technical field of tunnel air supply and smoke exhaust pipe installation, and aims to solve the technical problem of time-consuming and labor-intensive technical problems in the docking of air ducts for tunnel air supply and smoke exhaust pipes. The device comprises a fixed air duct, an extended air duct, a connecting structure, a U-shaped mounting base, a rotating mechanism, a tightening mechanism, a moving mechanism A, a moving carrier, and a three-axis adjustment structure. Through the above-mentioned arrangement, the present invention enables, when the extended air duct is installed, the rotating mechanism rotates the extended air duct so that the two flange holes are aligned, and the tightening mechanism is moved by the moving mechanism A so that the bolts pass through the flange and enter the nut. The tightening mechanism tightens all the bolts and nuts, completing the docking and fixing of the fixed air duct and the extended air duct without manual operation, thereby improving the efficiency of air duct docking during air supply and smoke exhaust, and solving the technical problem of time-consuming and labor-intensive technical problems in the docking of air ducts for tunnel air supply and smoke exhaust pipes.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel air supply and smoke exhaust pipe installation, and more particularly to auxiliary installation equipment for air supply and smoke exhaust pipes used in underground cavern excavation. Background Art

[0002] During the construction of underground caverns, smoke and dust are inevitably generated. However, underground caverns are relatively closed, and it is difficult to maintain stable construction when smoke and dust escape into the underground caverns. Most of the existing air supply and smoke exhaust methods install blowers at the excavation opening of the underground cavern to discharge the smoke and dust.

[0003] During the existing tunnel construction, the length of the tunnel continues to increase during the construction process, and may be several thousand meters in the later stage. Therefore, when supplying air and exhausting smoke, it is necessary to continuously lengthen new air ducts according to the tunnel construction process to ensure the air supply and smoke exhaust effect. Most of the existing air ducts are connected by flanges, and the installation and docking process of the air ducts is extremely troublesome, time-consuming and labor-intensive, which will affect the tunnel construction process. In view of this, we propose an auxiliary installation device for air supply and exhaust pipes for underground cavern excavation. Summary of the Invention

[0004] The purpose of the present invention is to provide an auxiliary installation device for air supply and exhaust pipes for underground cavern excavation, so as to solve the technical problem of time-consuming and labor-intensive docking of air ducts for tunnel air supply and exhaust pipes.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: an auxiliary installation device for an air supply and exhaust pipe for underground cavern excavation, the air supply and exhaust pipe comprising a fixed air duct pre-installed at the outlet end of the smoke exhaust fan, an extended air duct, and a connecting structure for connecting the fixed air duct and the extended air duct, the connecting structure comprising two flanges, a plurality of bolts and a plurality of nuts, the two flanges being fixed to the connecting ends of the fixed air duct and the extended air duct, respectively; the auxiliary installation device comprising a mobile carrier, a three-axis adjustment structure provided on the mobile carrier, a U-shaped mounting seat provided on the three-axis adjustment structure, a rotating mechanism provided on one side of the U-shaped mounting seat, a tightening mechanism provided in the middle of the U-shaped mounting seat, and a moving mechanism A provided on the other side of the U-shaped mounting seat for moving the tightening mechanism;

[0006] The rotating mechanism includes a mounting ring assembly A, which includes a semi-annular plate A. Both ends of the semi-annular plate A are rotatably connected to arc plates A, and the two arc plates A can be rotated simultaneously until their proximal ends are connected to form an annular mounting wall A with the semi-annular plate A. The annular mounting wall A is provided with a plurality of first movable grooves for accommodating nuts in an annular equidistant structure; one side of the annular mounting wall A is provided with a plurality of rotating shafts for driving the extended air duct to rotate;

[0007] The tightening mechanism includes a mounting ring assembly B, which includes a semi-ring plate B. Both ends of the semi-ring plate B are rotatably connected to arc plates B, and the two arc plates B can be rotated at the same time to connect with their adjacent ends and form an annular mounting wall B with the semi-ring plate B. The annular mounting wall B is rotatably provided with several placement assemblies for placing bolts in a circular equidistant structure.

[0008] Preferably, a mounting plate and a mounting block are respectively fixed to both ends of the U-shaped mounting seat, a sliding groove is provided on the U-shaped mounting seat near the tail of the mounting plate, a circular groove A is provided on both arms of the U-shaped mounting seat, a circular groove B is provided on the tail side of the two circular grooves A, a first gear A and a first gear B are respectively provided in the circular grooves A and B, the first gear B is fixedly connected to the first gear A by a coupling, the coupling is rotatably connected to the U-shaped mounting seat, and a cavity A and a cavity B are respectively provided in the gap between the circular grooves A and B;

[0009] The interior of the mounting block is hollow to form a mounting cavity, and a third gear C is provided at both ends of the mounting cavity. The head end of the coupling penetrates into the mounting cavity and is fixedly connected to the third gear C. The proximal ends of the two third gears C are meshed with the third gear D, and the two third gears D are meshed and connected. The third gear D is rotatably connected to the mounting cavity through a connecting rod A. A motor A is fixedly provided at the head end of the mounting block, and one of the head ends of the connecting rod A penetrates out of the mounting cavity and extends to the outside of the mounting block and is fixedly connected to the output shaft of the motor A.

[0010] Preferably, the semi-annular plate A is fixed on the U-shaped mounting seat through a mounting seat A, and the two arc plates A are rotatably connected to both ends of the semi-annular plate A through a connecting rod B, an adapting arc cavity is provided on the connecting rod B, the head end of the connecting rod B passes through the semi-annular plate A and is fixed with a second gear A, the second gear A is meshed and connected with the first gear A, a semi-arc cavity A is provided in the semi-annular plate A, a partial arc cavity A is provided in the arc plate A, the semi-arc cavity A, the two adapting arc cavities and the two partial arc cavities A are connected to form a rotating cavity A, the rotating cavity A is provided with gear grooves A in an annular equidistant structure equal to the number of the rotating shafts, and a plurality of card-connecting ball grooves A are provided at both ends of the rotating cavity A in an annular equidistant structure;

[0011] The semi-arc cavity A is rotatably equipped with a double-sided half-toothed ring A, and the partial arc cavity A is rotatably equipped with a double-sided partial toothed ring A. The double-sided half-toothed ring A is connected to two double-sided partial toothed rings A to form a double-sided toothed ring A. The double-sided toothed ring A is rotatably connected to the rotating cavity A. The gear groove A is provided with a planetary gear A meshing with the double-sided toothed ring A. The planetary gear A is rotatably connected to the gear groove A through a rotating shaft A. Several rotating shafts are arranged in an annular equidistant structure on the head side of the semi-ring plate A. The head end of the rotating shaft A passes through the gear groove A and is fixedly connected to the tail end of the rotating shaft.

[0012] The two ends of the double-sided gear ring A are provided with a number of movable column grooves A in a ring-shaped and equidistant structure. The movable column groove A is movably connected with a movable column A. The movable column A and the movable column groove A are elastically connected by a spring A. A snap-fit ​​ball block A is fixed on the movable column A, and the snap-fit ​​ball block A is snap-fitted with the snap-fit ​​ball groove A.

[0013] A motor B is fixedly provided on the head side of the mounting base A. The mounting base A has an upper and lower structure and is rotatably connected to a first rotating shaft C and a first rotating shaft D respectively. A first gear C is fixedly provided on the first rotating shaft C, and a first gear D is fixedly provided on the first rotating shaft D. The first gear C is meshed with the first gear D, and the first gear C is meshed with the double-sided gear ring A. The first rotating shaft D is fixedly connected to the output shaft of the motor B.

[0014] Preferably, a plurality of movable column grooves X are evenly formed on the first movable groove, and a movable column X is movably connected to the movable column groove X. The movable column X is elastically connected to the movable column groove X via a spring X, and a clamping ball block X is fixed on the movable column X.

[0015] Preferably, the rotating mechanism also includes a mounting ring assembly C, which includes a semi-ring plate C, both ends of the semi-ring plate C are rotatably connected to arc plates C, and the two arc plates C can rotate simultaneously to their proximal ends to connect and form an annular mounting wall C with the semi-ring plate C, the tail of the mounting wall C is an annular equidistant structure with a number of limiting ring grooves equal to the number of the rotating shafts, and a circular plate is rotatably connected to the limiting ring groove, and the circular plate is an annular equidistant structure with a number of limiting arc grooves arranged in an inclined structure, the limiting arc groove and the limiting ring groove gap constitute a single-phase rotating cavity, and the single-phase rotating cavity is interactively connected to a limiting column, the tail end of the circular plate is fixed with a rotating shaft X, the rotating shaft X is rotatably connected to the mounting wall C, and the tail end of the rotating shaft X passes through the mounting wall C and is fixedly connected to the head end of the rotating shaft.

[0016] Preferably, a mounting seat B is fixedly provided at the bottom end of the semi-annular plate B, a slider is fixedly provided at the bottom end of the mounting seat B, the slider is slidably connected to the slide groove, the two arc plates B and both ends of the semi-annular plate B are rotatably connected through a connecting rod C, the tail end of the connecting rod B passes through the semi-annular plate A and is fixedly provided with a second gear B, the second gear B is meshed and connected with the first gear B, a semi-arc cavity B is defined in the semi-annular plate B, a partial arc cavity B is defined in the arc plate B, the semi-arc cavity B is connected with the two partial arc cavities B to form a rotating cavity B, the rotating cavity B is provided with gear grooves B in an annular equidistant structure equal to the number of the first movable grooves, and a plurality of card-catching ball grooves B are defined at both ends of the rotating cavity A in an annular equidistant structure;

[0017] The semi-arc cavity B is rotatably fitted with a double-sided half-toothed ring B, and the partial arc cavity B is rotatably fitted with a double-sided partial toothed ring B. The double-sided half-toothed ring B is connected to two double-sided partial toothed rings B to form a double-sided toothed ring B, and the double-sided toothed ring B is rotatably connected to the rotating cavity B. The gear slot B is provided with a planetary gear B meshing with the double-sided toothed ring A. The planetary gear B is rotatably connected to the gear slot B via a rotating shaft B. The head end of the rotating shaft B passes through the gear slot B and is fixedly connected to the tail end of the placement assembly;

[0018] The two ends of the double-sided gear ring B are provided with a plurality of movable column slots B in an annular structure with equal spacing. The movable column slots B are movably connected to movable columns B. The movable columns B are elastically connected to the movable column slots B via springs B. A snap-fit ​​ball block B is fixed to the movable column B. The snap-fit ​​ball block B is snap-fitted with the snap-fit ​​ball slots B.

[0019] A motor C is fixed on the mounting base B, and the upper and lower structures on the head end of the mounting base B are respectively rotatably connected to the second rotating shaft C and the second rotating shaft D, the second rotating shaft C is fixed with a second gear C, and the second rotating shaft D is fixed with a second gear D, the second gear C is meshed with the second gear D, the first gear C is meshed with the double-sided gear ring B, and the second rotating shaft D is fixedly connected to the output shaft of the motor C.

[0020] Preferably, the placement component includes a rotating column, which is fixed at the head end of the rotating shaft B. A second movable groove is provided at the head end of the rotating column, and a number of movable column grooves Y are evenly provided on the second movable groove. A movable column Y is movably connected to the movable column groove Y. The movable column Y is elastically connected to the movable column groove Y through a spring Y, and a snap-on ball block Y is fixed on the movable column Y.

[0021] Preferably, the bolt includes a screw block, a plurality of snap-in ball grooves Y are evenly formed on the surface of the screw block, the snap-in ball grooves Y are snap-fitted with the snap-in ball block Y, a connecting column is fixed on the screw block, and the connecting column is provided with a plurality of thread grooves in an annular structure with equal spacing at one end away from the screw block, and the thread grooves are connected to an arc groove at one end close to the screw block;

[0022] The nut is fixed with a number of guide ball blocks in an annular equidistant structure, the number of which is equal to the number of the thread grooves. The guide ball blocks are movably matched with the thread grooves, and the guide ball blocks are movably matched with the arc grooves.

[0023] Preferably, the moving mechanism A includes a motor D, a screw and a threaded tube. The motor D is fixed at the tail end of the mounting plate, and the screw is rotatably arranged at the head end of the mounting plate. The tail end of the screw passes through the mounting plate and is fixedly connected to the output shaft of the motor D. The threaded tube is threadedly connected to the screw, and the head end of the threaded tube is fixedly connected to the mounting seat B.

[0024] Preferably, the three-axis adjustment structure includes a scissor-type lifting mechanism, a Y-axial moving mechanism is fixedly provided on the lifting platform of the scissor-type lifting mechanism, and an X-axial moving mechanism is fixedly provided on the movable end of the Y-axial moving mechanism.

[0025] The beneficial effects of the present invention are:

[0026] 1. When the extended air duct is installed, the rotating mechanism of the present invention rotates the extended air duct so that the two flange holes are aligned. The moving mechanism A moves the tightening mechanism so that the bolts pass through the flange and enter the nuts. The tightening mechanism tightens all the bolts and nuts to complete the docking and fixation of the fixed air duct and the extended air duct. No manual operation is required, which improves the efficiency of the air duct docking during air supply and smoke exhaust, and solves the technical problem of time-consuming and labor-intensive docking of air ducts for tunnel air supply and smoke exhaust pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention in use;

[0028] Figure 2 It is a schematic diagram of the use state of part of the structure of the present invention;

[0029] Figure 3 It is a partial structural diagram of the U-shaped mounting base, the rotating mechanism and the tightening mechanism of the present invention;

[0030] Figure 4 It is a partial structural diagram of the U-shaped mounting base and the rotating mechanism of the present invention;

[0031] Figure 5 It is a structural schematic diagram of the rotating mechanism of the present invention;

[0032] Figure 6 This is a schematic diagram of the disassembled structure of the mounting ring assembly A of the present invention;

[0033] Figure 7 for Figure 6 An enlarged schematic diagram of the structure of section A of the present invention;

[0034] Figure 8 Schematic diagram of a partial structural cross-section of the mounting ring assembly A of the present invention;

[0035] Figure 9 This is a schematic diagram of the partial structure of the mounting ring assembly A of the present invention;

[0036] Figure 10 Schematic diagram of the disassembled structure of the mounting ring assembly C of the present invention;

[0037] Figure 11 for Figure 10 A magnified schematic diagram of the structure of part B;

[0038] Figure 12 Schematic diagram of the split structure of the tightening mechanism and the moving mechanism A of the present invention;

[0039] Figure 13 for Figure 12 A magnified schematic diagram of the local structure;

[0040] Figure 14 Schematic diagram of the split structure of the double-sided gear ring A and the double-sided gear ring B of the present invention;

[0041] Figure 15 This is a schematic diagram of the split structure of the placement component of the present invention;

[0042] Figure 16 Schematic diagram of the disassembled structure of the U-shaped mounting base and the moving mechanism A of the present invention;

[0043] Figure 17 It is a schematic diagram of the disassembly structure of the bolt and nut of the present invention.

[0044] Description of the numbers in the figure:

[0045] 1. Fixed air duct; 2. Extended air duct; 3. Connection structure; 4. U-shaped mounting base; 5. Rotation mechanism; 6. Tightening mechanism; 7. Moving mechanism A; 8. Moving carrier; 9. Three-axis adjustment structure;

[0046] 31. Flange; 32. Bolt; 33. Nut;

[0047] 320, connecting column; 321, screw block; 322, snap-in ball groove Y; 323, threaded groove; 324, arc groove;

[0048] 331, guide ball block;

[0049] 40. Cavity B; 41. Mounting plate; 42. Mounting block; 43. Slideway; 44. Circular groove A; 45. Circular groove B; 46. First gear A; 47. First gear B; 48. Coupling; 49. Cavity A;

[0050] 421, mounting cavity; 422, third gear C; 423, third gear D; 424, connecting rod A; 425, motor A;

[0051] 51. Mounting ring assembly A; 52. First movable groove; 53. Rotating shaft; 54. Mounting ring assembly C;

[0052] 510, mounting seat A; 511, semi-ring plate A; 512, arc plate A; 513, connecting rod B; 514, second gear A; 515, semi-arc cavity A; 516, partial arc cavity A; 517, gear groove A; 518, ball-jointing groove A; 519, matching arc cavity;

[0053] 5101, motor B; 5102, first rotating shaft C; 5103, first rotating shaft D; 5104, first gear C; 5105, first gear D;

[0054] 5151, double-sided half-toothed ring A; 5152, movable column groove A; 5153, movable column A; 5154, spring A; 5155, clamping ball block A;

[0055] 5161, double-sided partial gear ring A;

[0056] 5171, planetary gear A; 5172, shaft A;

[0057] 521, movable column slot X; 522, movable column X; 523, spring X; 524, clamping ball block X;

[0058] 541, semi-ring plate C; 542, arc plate C; 543, limiting ring groove; 544, circular plate; 545, limiting arc groove; 546, limiting column; 547, rotating shaft X;

[0059] 61. Install ring assembly B; 62. Place assembly;

[0060] 610, mounting seat B; 611, semi-ring plate B; 612, arc plate B; 614, second gear B; 615, semi-arc cavity B; 616, partial arc cavity B; 617, gear groove B; 618, ball-jointing groove B; 619, slider;

[0061] 6101, motor C; 6102, second rotating shaft C; 6103, second rotating shaft D; 6104, second gear C; 6105, second gear D;

[0062] 6151, double-sided half-toothed ring B; 6152, movable column groove B; 6153, movable column B; 6154, clamping ball block B; 6155, spring B;

[0063] 6161, double-sided partial gear ring B;

[0064] 6171, planetary gear B; 6172, shaft B;

[0065] 621. Rotating column; 622. Second movable groove; 623. Movable column groove Y; 624. Clamping ball block Y; 625. Movable column Y; 626. Spring Y. DETAILED DESCRIPTION

[0066] like Figures 1 to 17 As shown, the present invention relates to an auxiliary installation device for an air supply and exhaust pipe for underground cavern excavation, the air supply and exhaust pipe comprising a fixed air duct 1 pre-installed at the outlet end of the smoke exhaust fan, an extended air duct 2, and a connecting structure 3 for connecting the fixed air duct 1 and the extended air duct 2, the connecting structure 3 comprising two flanges 31, a plurality of bolts 32 and a plurality of nuts 33, the two flanges 31 being fixed to the connecting ends of the fixed air duct 1 and the extended air duct 2, respectively. The auxiliary installation device is characterized in that it comprises a mobile carrier 8, a three-axis adjustment structure 9 provided on the mobile carrier 8, a U-shaped mounting seat 4 provided on the three-axis adjustment structure 9, a rotating mechanism 5 provided on one side of the U-shaped mounting seat 4, a tightening mechanism 6 provided in the middle of the U-shaped mounting seat 4, and a moving mechanism A7 provided on the other side of the U-shaped mounting seat 4 for moving the tightening mechanism 6;

[0067] The rotating mechanism 5 includes a mounting ring assembly A51, which includes a semi-annular plate A511. Both ends of the semi-annular plate A511 are rotatably connected to arc plates A512. The two arc plates A512 can rotate simultaneously until their proximal ends meet and form an annular mounting wall A with the semi-annular plate A511. The annular mounting wall A is provided with a plurality of first movable grooves 52 for accommodating nuts 33 in an annular structure with equal spacing. A plurality of rotating shafts 53 for driving the extension duct 2 to rotate are provided on one side of the annular mounting wall A.

[0068] The tightening mechanism 6 includes a mounting ring assembly B61, which includes a semi-ring plate B611. Both ends of the semi-ring plate B611 are rotatably connected to arc plates B612, and the two arc plates B612 can be rotated at the same time to connect with their adjacent ends and form an annular mounting wall B with the semi-ring plate B611. The annular mounting wall B is rotatably provided with several placement assemblies 62 for placing bolts 32 in a circular equidistant structure.

[0069] In the embodiment of the present invention, a mounting plate 41 and a mounting block 42 are respectively fixed to both ends of the U-shaped mounting seat 4. A sliding groove 43 is opened at the tail of the U-shaped mounting seat 4 near the mounting plate 41. A circular groove A44 is opened on both arms of the U-shaped mounting seat 4. A circular groove B45 is opened on the tail side of the two circular grooves A44. A first gear A46 and a first gear B47 are respectively provided in the circular grooves A44 and B45. The first gear B47 is fixedly connected to the first gear A46 by a connecting shaft 48. The connecting shaft 48 is rotatably connected to the U-shaped mounting seat 4. A cavity A49 and a cavity B40 are respectively opened in the gap between the circular grooves A44 and B45.

[0070] The interior of the mounting block 42 is hollow to form a mounting cavity 421, and a third gear C422 is provided at both ends of the mounting cavity 421. The head end of the connecting shaft 48 passes through the mounting cavity 421 and is fixedly connected to the third gear C422. The proximal ends of the two third gears C422 are meshed with the third gear D423, and the two third gears D423 are meshed and connected. The third gear D423 is rotatably connected to the mounting cavity 421 through a connecting rod A424. A motor A425 is fixed at the head end of the mounting block 42, and the head end of one of the connecting rods A424 passes through the mounting cavity 421 and extends to the outside of the mounting block 42 and is fixedly connected to the output shaft of the motor A425.

[0071] In an embodiment of the present invention, a semi-annular plate A511 is fixed on a U-shaped mounting seat 4 through a mounting seat A510, and two arc plates A512 are rotatably connected to both ends of the semi-annular plate A511 through a connecting rod B513. An adapting arc cavity 519 is provided on the connecting rod B513, and the head end of the connecting rod B513 passes through the semi-annular plate A511 and is fixed with a second gear A514. The second gear A514 is meshed with the first gear A46. A semi-arc cavity A515 is provided in the semi-annular plate A511, and a partial arc cavity A516 is provided in the arc plate A512. The semi-arc cavity A515, the two adapting arc cavities 519 and the two partial arc cavities A516 are connected to form a rotating cavity A. The rotating cavity A is provided with gear grooves A517 in an annular equidistant structure, the number of which is equal to the number of rotating shafts 53, and a number of card-connecting ball grooves A518 are provided in an annular equidistant structure at both ends of the rotating cavity A.

[0072] A double-sided half-toothed ring A5151 is rotatably matched on the semi-arc cavity A515, and a double-sided partial toothed ring A5161 is rotatably matched on the partial arc cavity A516. The double-sided half-toothed ring A5151 is connected with two double-sided partial toothed rings A5161 to form a double-sided toothed ring A. The double-sided toothed ring A is rotatably connected to the rotating cavity A. A planetary gear A5171 meshing with the double-sided toothed ring A is provided on the gear groove A517. The planetary gear A5171 is rotatably connected to the gear groove A517 through the rotating shaft A5172. A plurality of rotating shafts 53 are arranged in an annular equidistant structure on the head side of the semi-annular plate A511. The head end of the rotating shaft A5172 passes through the gear groove A517 and is fixedly connected to the tail end of the rotating shaft 53.

[0073] The two ends of the double-sided gear ring A are provided with several movable column grooves A5152 in a ring-shaped and equidistant structure. The movable column groove A5152 is movably connected with a movable column A5153. The movable column A5153 and the movable column groove A5152 are elastically connected by a spring A5154. A snap-fit ​​ball block A5155 is fixed on the movable column A5153, and the snap-fit ​​ball block A5155 is snap-fitted with the snap-fit ​​ball groove A518.

[0074] A motor B5101 is fixedly installed on the head side of the mounting base A510. The mounting base A510 has an upper and lower structure, which are rotatably connected to the first rotating shaft C5102 and the first rotating shaft D5103 respectively. The first rotating shaft C5102 is fixedly provided with a first gear C5104, and the first rotating shaft D5103 is fixedly provided with a first gear D5105. The first gear C5104 is meshed with the first gear D5105, and the first gear C5104 is meshed with the double-sided gear ring A. The first rotating shaft D5103 is fixedly connected to the output shaft of the motor B5101.

[0075] In an embodiment of the present invention, a plurality of movable column grooves X521 are evenly provided on the first movable groove 52, and a movable column X522 is movably connected to the movable column groove X521. The movable column X522 is elastically connected to the movable column groove X521 through a spring X523, and a snap-on ball block X524 is fixed on the movable column X522.

[0076] In an embodiment of the present invention, the rotating mechanism 5 also includes a mounting ring assembly C54, which includes a semi-ring plate C541. Both ends of the semi-ring plate C541 are rotatably connected to arc plates C542, and the two arc plates C542 can rotate simultaneously to their proximal ends to connect and form an annular mounting wall C with the semi-ring plate C541. The tail of the mounting wall C is an annular equidistant structure with a number of limiting ring grooves 543 equal to the number of rotating shafts 53. A circular plate 544 is rotatably connected to the limiting ring groove 543. The circular plate 544 is an annular equidistant structure with a number of limiting arc grooves 545 arranged in an inclined structure. The gap between the limiting arc groove 545 and the limiting ring groove 543 forms a single-phase rotating cavity. The single-phase rotating cavity is interactively connected to a limiting column 546. The tail end of the circular plate 544 is fixed with a rotating shaft X547. The rotating shaft X547 is rotatably connected to the mounting wall C, and the tail end of the rotating shaft X547 passes through the mounting wall C and is fixedly connected to the head end of the rotating shaft 53.

[0077] In an embodiment of the present invention, a mounting seat B610 is fixed to the bottom end of the semi-ring plate B611, and a slider 619 is fixed to the bottom end of the mounting seat B610. The slider 619 is slidably connected to the slide groove 43. The two arc plates B612 are rotatably connected to both ends of the semi-ring plate B611 through a connecting rod C. The tail end of the connecting rod B513 passes through the semi-ring plate A511 and is fixed with a second gear B614. The second gear B614 is meshed with the first gear B47. A semi-arc cavity B615 is opened in the semi-ring plate B611, and a partial arc cavity B616 is opened in the arc plate B612. The semi-arc cavity B615 is connected to the two partial arc cavities B616 to form a rotating cavity B. The rotating cavity B is provided with gear grooves B617 in an annular equidistant structure, the number of which is equal to the number of first movable grooves 52. A plurality of card-catching ball grooves B618 are opened in an annular equidistant structure at both ends of the rotating cavity A.

[0078] A double-sided half-toothed ring B6151 is rotatably fitted on the semi-arc cavity B615, and a double-sided partial toothed ring B6161 is rotatably fitted on the partial arc cavity B616. The double-sided half-toothed ring B6151 is connected to the two double-sided partial toothed rings B6161 to form a double-sided toothed ring B. The double-sided toothed ring B is rotatably connected to the rotating cavity B. A planetary gear B6171 meshing with the double-sided toothed ring A is provided on the gear groove B617. The planetary gear B6171 is rotatably connected to the gear groove B617 via a rotating shaft B6172. The head end of the rotating shaft B6172 passes through the gear groove B617 and is fixedly connected to the tail end of the placement component 62.

[0079] The two ends of the double-sided gear ring B are provided with a plurality of movable column grooves B6152 in an annular structure with equal spacing. The movable column grooves B6152 are movably connected with movable columns B6153. The movable columns B6153 and the movable column grooves B6152 are elastically connected by springs B6155. The movable columns B6153 are fixed with a snap-fit ​​ball block B6154, which snaps into engagement with the snap-fit ​​ball grooves B618.

[0080] A motor C6101 is fixed on the mounting base B610, and the upper and lower structures on the head end of the mounting base B610 are respectively rotatably connected to the second rotating shaft C6102 and the second rotating shaft D6103. A second gear C6104 is fixed on the second rotating shaft C6102, and a second gear D6105 is fixed on the second rotating shaft D6103. The second gear C6104 is meshed with the second gear D6105, and the first gear C5104 is meshed with the double-sided gear ring B. The second rotating shaft D6103 is fixedly connected to the output shaft of the motor C6101.

[0081] In an embodiment of the present invention, the placement component 62 includes a rotating column 621, which is fixed at the head end of the rotating shaft B6172. A second movable groove 622 is provided at the head end of the rotating column 621. A number of movable column grooves Y623 are evenly provided on the second movable groove 622. A movable column Y625 is movably connected to the movable column groove Y623. The movable column Y625 is elastically connected to the movable column groove Y623 by a spring Y626. A snap-on ball block Y624 is fixed on the movable column Y625.

[0082] In the embodiment of the present invention, the bolt 32 includes a screw block 321, and a plurality of snap-in ball grooves Y322 are evenly formed on the surface of the screw block 321. The snap-in ball grooves Y322 snap-fit ​​with the snap-in ball block Y624. A connecting column 320 is fixed to the screw block 321. The connecting column 320 has a plurality of thread grooves 323 formed in an annular structure with equal spacing at one end away from the screw block 321. The thread grooves 323 are connected to an arc-shaped groove 324 at the end near the screw block 321.

[0083] A number of guide balls 331 are fixedly provided in the nut 33 in an annular structure with equal spacing, the number of which is equal to the number of thread grooves 323 . The guide balls 331 are movably engaged with the thread grooves 323 , and the guide balls 331 are movably engaged with the arc grooves 324 .

[0084] In an embodiment of the present invention, the moving mechanism A7 includes a motor D71, a screw rod 72 and a threaded tube 73. The motor D71 is fixed at the tail end of the mounting plate 41, and the screw rod 72 is rotatably arranged at the head end of the mounting plate 41. The tail end of the screw rod 72 passes through the mounting plate 41 and is fixedly connected to the output shaft of the motor D71. The threaded tube 73 is threadedly connected to the screw rod 72, and the head end of the threaded tube 73 is fixedly connected to the mounting seat B610.

[0085] In an embodiment of the present invention, the three-axis adjustment structure 9 includes a scissor-type lifting mechanism 91 , a Y-axis moving mechanism 92 is fixed on the lifting platform of the scissor-type lifting mechanism 91 , and an X-axis moving mechanism 93 is fixed on the movable end of the Y-axis moving mechanism 92 .

[0086] Working Principle: This embodiment provides an auxiliary installation device for an air supply and smoke exhaust pipe for underground cavern excavation. During use, the output shaft of motor A425 is controlled by an external control mechanism to rotate, causing the two third gears D423 to rotate in the opposite direction, thereby causing the two third gears C422 to rotate in the opposite direction, causing the two connecting shafts 48, the first gear A46, and the first gear B47 to rotate in the opposite direction, causing the two second gears A514 and the two second gears B614 to rotate in the opposite direction, thereby causing the arc plate A512 to rotate and open relative to the semi-annular plate A511, and the arc plate B612 to rotate and open relative to the semi-annular plate B611.

[0087] Place the extension air duct 2 on the rotating mechanism 5, and use the three-axis adjustment structure 9 to connect the extension air duct 2 with the two flanges 31 of the installed fixed air duct 1;

[0088] The output shaft of the motor A425 is controlled by an external control mechanism to rotate so that the two arc plates A512 can rotate simultaneously until their proximal ends meet and form an annular mounting wall A with the semi-annular plate A511, and the two arc plates B612 can rotate simultaneously until their proximal ends meet and form an annular mounting wall B with the semi-annular plate B611;

[0089] The motor B5101 is controlled by an external control structure, so that the first gear D5105 and the first gear C5104 rotate, driving the double-sided gear ring A to rotate, so that the plurality of rotating shafts 53 rotate together, thereby rotating the extended air duct 2 until the holes of the two flanges 31 are aligned;

[0090] The moving mechanism A7 is used to drive the position of the moving mechanism A7 to change, so that the bolt 32 passes through the flange 31 and enters the nut 33; the output shaft of the motor C6101 is controlled to rotate by the external control mechanism, so that the several rotating shafts B6172 drive the placement component 62 to rotate, so that the bolt 32 and the nut 33 are tightened.

[0091] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. An auxiliary installation device for an air supply and smoke exhaust pipe for underground cavern excavation, the air supply and smoke exhaust pipe comprising a fixed air duct (1) pre-installed at the outlet end of a smoke exhaust fan, an extended air duct (2), and a connecting structure (3) for connecting the fixed air duct (1) and the extended air duct (2), the connecting structure (3) comprising two flanges (31), a plurality of bolts (32) and a plurality of nuts (33), the two flanges (31) being fixed to the connecting ends of the fixed air duct (1) and the extended air duct (2), respectively, and characterized in that: The auxiliary mounting device comprises a mobile carrier (8), a three-axis adjustment structure (9) arranged on the mobile carrier (8), a U-shaped mounting seat (4) arranged on the three-axis adjustment structure (9), a rotating mechanism (5) arranged on one side of the U-shaped mounting seat (4), a tightening mechanism (6) arranged in the middle of the U-shaped mounting seat (4), and a moving mechanism A (7) arranged on the other side of the U-shaped mounting seat (4) for moving the tightening mechanism (6); The rotating mechanism (5) includes a mounting ring assembly A (51), the mounting ring assembly A (51) includes a semi-annular plate A (511), both ends of the semi-annular plate A (511) are rotatably connected to arc plates A (512), and the two arc plates A (512) can be rotated simultaneously to the ends thereof adjacent to each other and form an annular mounting wall A with the semi-annular plate A (511), and the annular mounting wall A is provided with a plurality of first movable grooves (52) for accommodating nuts (33) in an annular equidistant structure; and a plurality of rotating shafts (53) for driving the extended air duct (2) to rotate are provided on one side of the annular mounting wall A; The tightening mechanism (6) includes a mounting ring assembly B (61), and the mounting ring assembly B (61) includes a semi-annular plate B (611). Both ends of the semi-annular plate B (611) are rotatably connected to arc plates B (612), and the two arc plates B (612) can be rotated simultaneously until their adjacent ends are connected and form an annular mounting wall B with the semi-annular plate B (611). The annular mounting wall B is rotatably provided with a plurality of placement assemblies (62) for placing bolts (32) in an annular equidistant structure.

2. The auxiliary installation device for the air supply and smoke exhaust pipe for underground cavern excavation according to claim 1, characterized in that: The U-shaped mounting seat (4) is fixed with a mounting plate (41) and a mounting block (42) at both ends, and a sliding groove (43) is provided near the tail of the mounting plate (41) on the U-shaped mounting seat (4). The two arms of the U-shaped mounting seat (4) are provided with a circular groove A (44), and the tail sides of the two circular grooves A (44) are provided with a circular groove B (45). The circular grooves A (44) and the circular grooves B (45) are provided with a first gear A (46) and a first gear B (47) respectively. The first gear B (47) and the first gear A (46) are fixedly connected by a connecting shaft (48). The connecting shaft (48) is rotatably connected to the U-shaped mounting seat (4). The gaps between the circular grooves A (44) and the circular grooves B (45) are provided with a cavity A (49) and a cavity B (40). The interior of the mounting block (42) is hollow to form a mounting cavity (421), and a third gear C (422) is provided at both ends of the mounting cavity (421). The head end of the connecting shaft (48) penetrates the mounting cavity (421) and is fixedly connected to the third gear C (422). The adjacent ends of the two third gears C (422) are meshedly connected with a third gear D (423). The two third gears D (423) are meshedly connected. The third gear D (423) is rotatably connected to the mounting cavity (421) via a connecting rod A (424). A motor A (425) is fixedly provided at the head end of the mounting block (42), and the head end of one of the connecting rods A (424) penetrates the mounting cavity (421) and extends to the outside of the mounting block (42) and is fixedly connected to the output shaft of the motor A (425).

3. The auxiliary installation device for the air supply and smoke exhaust pipe for underground cavern excavation according to claim 2, characterized in that: The semi-annular plate A (511) is fixed on the U-shaped mounting seat (4) through the mounting seat A (510), and the two arc plates A (512) are rotatably connected to both ends of the semi-annular plate A (511) through the connecting rod B (513). The connecting rod B (513) is provided with an adaptive arc cavity (519). The head end of the connecting rod B (513) passes through the semi-annular plate A (511) and is fixed with a second gear A (514). The second gear A (514) is meshed with the first gear A (46). A semi-arc cavity A (515) is provided in the semi-annular plate A (511), and a partial arc cavity A (516) is provided in the arc plate A (512). The semi-arc cavity A (515), two adapting arc cavities (519) and two partial arc cavities A (516) are connected to form a rotating cavity A. The rotating cavity A is provided with gear grooves A (517) in an annular equidistant structure, the number of which is equal to the number of the rotating shafts (53). A plurality of snap-on ball grooves A (518) are provided at both ends of the rotating cavity A in an annular equidistant structure. The semi-arc cavity A (515) is rotatably matched with a double-sided half-toothed ring A (5151), and the partial arc cavity A (516) is rotatably matched with a double-sided partial toothed ring A (5161). The double-sided half-toothed ring A (5151) is connected with two double-sided partial toothed rings A (5161) to form a double-sided toothed ring A. The double-sided toothed ring A is rotatably connected with the rotating cavity A. The gear groove A (517) is provided with a planetary gear A (5171) meshing with the double-sided toothed ring A. The planetary gear A (5171) is rotatably connected with the gear groove A (517). The planetary gear A (5171) is rotatably connected with the gear groove A (5172). A plurality of rotating shafts (53) are arranged on the head side of the semi-annular plate A (511) in an annular equidistant structure. The head end of the rotating shaft A (5172) passes through the gear groove A (517) and is fixedly connected to the tail end of the rotating shaft (53). The two ends of the double-sided gear ring A are provided with a plurality of movable column grooves A (5152) in an annular structure with equal spacing. The movable column groove A (5152) is movably connected with a movable column A (5153). The movable column A (5153) and the movable column groove A (5152) are elastically connected via a spring A (5154). A snap-fit ​​ball block A (5155) is fixed on the movable column A (5153). The snap-fit ​​ball block A (5155) is snap-fitted with the snap-fit ​​ball groove A (518). A motor B (5101) is fixedly provided on the head side of the mounting seat A (510), and the mounting seat A (510) is in an upper and lower structure and is rotatably connected to a first rotating shaft C (5102) and a first rotating shaft D (5103), respectively. A first gear C (5104) is fixedly provided on the first rotating shaft C (5102), and a first gear D (5105) is fixedly provided on the first rotating shaft D (5103). The first gear C (5104) is meshed with the first gear D (5105), and the first gear C (5104) is meshed with the double-sided gear ring A. The first rotating shaft D (5103) is fixedly connected to the output shaft of the motor B (5101).

4. The auxiliary installation device for the air supply and smoke exhaust pipe for underground cavern excavation according to claim 3, characterized in that: A plurality of movable column grooves X (521) are evenly formed on the first movable groove (52), and movable columns X (522) are movably connected to the movable column grooves X (521). The movable columns X (522) are elastically connected to the movable column grooves X (521) via springs X (523), and a snap-on ball block X (524) is fixedly provided on the movable columns X (522).

5. The auxiliary installation device for the air supply and smoke exhaust pipe for underground cavern excavation according to claim 3, characterized in that: The rotating mechanism (5) further comprises a mounting ring assembly C (54), the mounting ring assembly C (54) comprising a semi-annular plate C (541), both ends of the semi-annular plate C (541) being rotatably connected to arc plates C (542), and the two arc plates C (542) can simultaneously rotate to their respective proximal ends to connect and form an annular mounting wall C with the semi-annular plate C (541), the tail of the mounting wall C being an annular equidistant structure having a number of limiting ring grooves (543) equal in number to the number of the rotating shafts (53), the limiting ring grooves (543) being rotatably connected to A circular plate (544) is provided with a plurality of limiting arc grooves (545) arranged in an inclined structure in an annular equidistant structure on the circular plate (544), the gap between the limiting arc groove (545) and the limiting ring groove (543) forms a single-phase rotating cavity, and the limiting column (546) is interactively connected to the single-phase rotating cavity. A rotating shaft X (547) is fixed at the tail end of the circular plate (544), and the rotating shaft X (547) is rotatably connected to the mounting wall C, and the tail end of the rotating shaft X (547) passes through the mounting wall C and is fixedly connected to the head end of the rotating shaft (53).

6. The auxiliary installation device for the air supply and smoke exhaust pipe for underground cavern excavation according to claim 5, characterized in that: The bottom end of the semi-annular plate B (611) is fixed with a mounting seat B (610), the bottom end of the mounting seat B (610) is fixed with a slider (619), the slider (619) is slidably connected to the slide groove (43), the two arc plates B (612) and the ends of the semi-annular plate B (611) are rotatably connected through a connecting rod C, the tail end of the connecting rod B (513) passes through the semi-annular plate A (511) and is fixed with a second gear B (614), the second gear B (614) is connected to the first gear B (4 7) meshing connection, a semi-arc cavity B (615) is opened in the semi-annular plate B (611), a partial arc cavity B (616) is opened in the arc plate B (612), the semi-arc cavity B (615) is connected with the two partial arc cavities B (616) to form a rotating cavity B, the rotating cavity B is provided with a gear groove B (617) in an annular equidistant structure, the number of which is equal to the number of the first movable grooves (52), and the two ends of the rotating cavity A are provided with a plurality of card receiving ball grooves B (618) in an annular equidistant structure; The semi-arc cavity B (615) is rotatably fitted with a double-sided half-toothed ring B (6151), and the partial arc cavity B (616) is rotatably fitted with a double-sided partial toothed ring B (6161). The double-sided half-toothed ring B (6151) is connected with two double-sided partial toothed rings B (6161) to form a double-sided toothed ring B. The double-sided toothed ring B is rotatably connected with the rotating cavity B. The gear slot B (617) is provided with a planetary gear B (6171) meshing with the double-sided toothed ring A. The planetary gear B (6171) is rotatably connected with the gear slot B (6177) via a rotating shaft B (6172). The head end of the rotating shaft B (6172) passes through the gear slot B (6177) and is fixedly connected to the tail end of the placement component (62). The two ends of the double-sided gear ring B are provided with a plurality of movable column grooves B (6152) in an annular structure with equal spacing. The movable column groove B (6152) is movably connected with a movable column B (6153). The movable column B (6153) is elastically connected to the movable column groove B (6152) via a spring B (6155). A snap-fit ​​ball block B (6154) is fixed on the movable column B (6153). The snap-fit ​​ball block B (6154) is snap-fitted with the snap-fit ​​ball groove B (618). A motor C (6101) is fixedly provided on the mounting base B (610), and the head end of the mounting base B (610) is in an upper and lower structure, which are rotatably connected to a second rotating shaft C (6102) and a second rotating shaft D (6103), respectively. A second gear C (6104) is fixedly provided on the second rotating shaft C (6102), and a second gear D (6105) is fixedly provided on the second rotating shaft D (6103). The second gear C (6104) is meshedly connected with the second gear D (6105), the first gear C (5104) is meshedly connected with the double-sided gear ring B, and the second rotating shaft D (6103) is fixedly connected with the output shaft of the motor C (6101).

7. The auxiliary installation device for the air supply and smoke exhaust pipe for underground cavern excavation according to claim 6, characterized in that: The placement component (62) includes a rotating column (621), the rotating column (621) is fixed to the head end of the rotating shaft B (6172), the head end of the rotating column (621) is provided with a second movable groove (622), the second movable groove (622) is evenly provided with a plurality of movable column grooves Y (623), the movable column groove Y (623) is movably connected to the movable column Y (625), the movable column Y (625) and the movable column groove Y (623) are elastically connected via a spring Y (626), and a clamping ball block Y (624) is fixed to the movable column Y (625).

8. The auxiliary installation device for the air supply and smoke exhaust pipe for underground cavern excavation according to claim 7, characterized in that: The bolt (32) includes a screw block (321), and a plurality of snap-in ball grooves Y (322) are evenly formed on the surface of the screw block (321). The snap-in ball grooves Y (322) are snap-fitted with the snap-in ball block Y (624). A connecting column (320) is fixed on the screw block (321), and a plurality of thread grooves (323) are formed in an annular structure with equal spacing at one end of the connecting column (320) away from the screw block (321). An arc-shaped groove (324) is formed on the end of the thread groove (323) close to the screw block (321). The nut (33) is fixed with a plurality of guide ball blocks (331) in an annular equidistant structure, the number of which is equal to the number of the thread grooves (323). The guide ball blocks (331) are movably matched with the thread grooves (323), and the guide ball blocks (331) are movably matched with the arc grooves (324).

9. The auxiliary installation device for the air supply and smoke exhaust pipe for underground cavern excavation according to claim 8, characterized in that: The moving mechanism A (7) includes a motor D (71), a screw rod (72) and a threaded tube (73), wherein the motor D (71) is fixedly mounted on the rear end of the mounting plate (41), the screw rod (72) is rotatably mounted on the head end of the mounting plate (41), the tail end of the screw rod (72) passes through the mounting plate (41) and is fixedly connected to the output shaft of the motor D (71), the threaded tube (73) is threadedly connected to the screw rod (72), and the head end of the threaded tube (73) is fixedly connected to the mounting seat B (610).

10. The auxiliary installation device for the air supply and smoke exhaust pipe for underground cavern excavation according to claim 9, characterized in that: The three-axis adjustment structure (9) comprises a scissor-type lifting mechanism (91), a Y-axis moving mechanism (92) is fixedly provided on the lifting platform of the scissor-type lifting mechanism (91), and an X-axis moving mechanism (93) is fixedly provided at the movable end of the Y-axis moving mechanism (92).

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