Double-arch tunnel excavation supporting equipment

Abstract

The utility model relates to the technical field of tunnel construction, in particular to double-arch tunnel excavation supporting equipment which comprises two sets of connecting supports, the bottoms of the connecting supports are connected with a plurality of sets of lifting hydraulic rods, the bottoms of the lifting hydraulic rods are connected with fixed connecting rods, and the two ends of each fixed connecting rod are connected with connecting box bodies. The adjustable butt joint structure is arranged in the double-arch tunnel excavation supporting equipment, so that the driving motor in the adjustable butt joint structure enables the two sets of tunnel supporting equipment to be in butt joint rapidly through the transmission structure, after butt joint is completed, the jacking hydraulic rod is started, the jacking hydraulic rod is driven to rotate, the jacking hydraulic rod is driven to rotate, and the jacking hydraulic rod is driven to rotate. The driving end of the jacking hydraulic rod moves outwards, then the rotating supporting plate is driven to rotate, the rotating supporting plate abuts against the side wall of the tunnel, at the moment, the double-arch tunnel partition wall is supported through the rotating supporting plate, then the pressure on the partition wall is reduced, and the stability of the tunnel is kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel construction technical field, concretely is a double-arch tunnel excavation support equipment. BACKGROUND

[0002] With the sustained development of highway, railway, urban road construction in China, tunnel engineering has obtained the rapid development, and the double-arch tunnel is as one of special forms, has the high space utilization rate, the simple connection, is favorable to environmental protection, reduces the demolition and removal, reduces the highway engineering cost and so on.

[0003] In the double-arch tunnel excavation, the partition wall is as the most important support component in the double-arch tunnel, and the stratum eccentric pressure will greatly influence the stability of the partition wall, and the partition wall will deflect to the tunnel shallow-buried side, and even crack in serious cases.In addition, the excavation and support of the left and right main tunnels of the tunnel have space-time effect, which can change the size and distribution of the surrounding rock pressure above the partition wall, seriously affecting the construction safety of the double-arch tunnel, and the height of the existing support equipment is fixed, so it is not convenient to adjust the height of the device when using it for different height tunnels, so that the device is not very convenient to use, and the above problems need to be provided with a double-arch tunnel excavation support equipment. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a double-arch tunnel excavation support equipment to solve the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A double-arch tunnel excavation support equipment, comprising two groups of connecting supports, the bottom of the connecting support is connected with multiple groups of lifting hydraulic rods, the bottom of the lifting hydraulic rod is connected with a fixed connecting rod, both ends of the fixed connecting rod are connected with a connection box body, the connection box body is connected with a driving roller, the end surface of the connection box body is connected with a controller, the end surface of the adjustable butt joint structure is connected with a top support arch plate through a connecting frame, the side wall of the top support arch plate is connected with a rotating support plate through a hinge, and multiple groups of top support hydraulic rods are rotatably connected between the connecting support and the rotating support plate through a rotating seat.

[0007] As the preferred scheme of the utility model, the adjustable butt joint structure includes multiple groups of link rods, the link rods are connected on the end face of the connecting support, the side wall of the front end link rod is connected with the driving motor through the connecting seat, the driving end of the driving motor is connected with the driving rod through the shaft coupling, the other end of the driving rod is connected with the driven bevel gear through the driving bevel gear, the center of the driven bevel gear is connected with the rotating rod, the side wall of the rotating rod is connected with multiple groups of rotating bevel gears in the inner cavity of the link rod, the side wall of the rotating bevel gear is connected with the transmission bevel gear, the center of the transmission bevel gear is connected with the rotating lead screw, the side wall of the rotating lead screw is connected with the link block, the side wall of the link block is connected with the moving connecting pipe in the inner cavity of the link rod, the outer wall of the moving connecting pipe is connected with the limiting slide block symmetrically, the outer wall of the link rod is connected with the L-shaped sliding groove corresponding to the limiting slide block, one end of the left moving connecting pipe is connected with the link sleeve, one end of the right moving connecting pipe is connected with the fixed clamping seat corresponding to the link sleeve, the outer wall of the fixed clamping seat is connected with the fixed clamping plate symmetrically, the side wall of the link sleeve is connected with the link slot corresponding to the fixed clamping plate.

[0008] As the preferred scheme of the utility model, the lifting hydraulic rod is connected with the controller through wires and the connection mode is electrical connection, the side wall of the link box is connected with the connecting support and is connected with the sliding groove, and the connection mode of the connecting support and the sliding groove is sliding connection.

[0009] As the preferred scheme of the utility model, the driving roller is connected with the controller through wires and the connection mode is electrical connection, and the top support hydraulic rod is connected with the controller through wires and the connection mode is electrical connection.

[0010] As the preferred scheme of the utility model, the driving motor is connected with the controller through wires and the connection mode is electrical connection, and the driving rod is connected on the side wall of the link rod through the bearing seat, and the connection mode of the driving rod and the bearing seat is rotary connection.

[0011] As the preferred scheme of the utility model, the rotating rod is connected on the side wall of the link rod through the bearing seat, and the connection mode of the rotating rod and the bearing seat is rotary connection, and the rotating lead screw is connected on the side wall of the inner cavity of the link rod through the bearing seat, and the connection mode of the rotating lead screw and the bearing seat is rotary connection.

[0012] As the preferred scheme of the utility model, the connection mode of the rotating lead screw and the link block is sliding connection, the connection mode between the link rod and the moving connecting pipe is sliding connection, and the connection mode of the limiting slide block and the L-shaped sliding groove is sliding connection.

[0013] As the preferred scheme of the utility model, the L-shaped sliding groove and the connecting clamping groove are both L-shaped structures, the cooperation mode of the inner cavity of the connecting clamping sleeve and the fixed clamping seat is clearance fit, and the cooperation mode of the fixed clamping plate and the connecting clamping groove is clearance fit.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] In the utility model, the adjustable butt joint structure is arranged in the double-arch tunnel excavation supporting equipment, so that the driving motor in the adjustable butt joint structure drives the two groups of tunnel supporting equipment to be quickly butt jointed through the transmission structure, after the butt joint is completed, the hydraulic jack is started, the driving end of the hydraulic jack is moved outward, the rotating support plate is driven to rotate, the rotating support plate abuts against the side wall of the tunnel, the double-arch tunnel partition wall is supported by the rotating support plate at this time, and the pressure on the partition wall is reduced, so that the stability of the tunnel is maintained.

[0016] In the utility model, the lifting hydraulic rod is arranged in the double-arch tunnel excavation supporting equipment, so that the height of the tunnel supporting equipment can be adjusted through the transmission structure of the lifting hydraulic rod, and the device can be used for tunnels with different heights. ACCURACY OF DRAWINGS

[0017] Figure 1 It is a part structure schematic view of the utility model;

[0018] Figure 2 It is a part structure schematic view of the utility model; Figure 1

[0019] Figure 3 It is a structure schematic view of the adjustable butt joint structure of the utility model;

[0020] Figure 4 It is a part structure schematic view of the utility model; Figure 3

[0021] Figure 5 It is an enlarged structure schematic view of A in the utility model. Figure 3

[0022] ​​​In the figure: 1, connecting support; 2, lifting hydraulic rod; 3, fixed connecting rod; 4, connecting box; 5, drive roller; 6, controller; 7, adjustable butt joint structure; 8, top support arch plate; 9, rotating support plate; 10, top support hydraulic rod; 701, connecting connecting rod; 702, drive motor; 703, drive rod; 704, drive bevel gear; 705, driven bevel gear; 706, rotating rod; 707, rotating bevel gear; 708, transmission bevel gear; 709, rotating screw; 710, connecting sliding block; 711, moving connecting pipe; 712, limit sliding block; 713, L-shaped sliding groove; 714, connecting sleeve; 715, fixed clamping seat; 716, fixed clamping plate; 717, connecting clamping groove. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be apparently and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Embodiment, please refer to Figures 1-5 The utility model provides a technical scheme:

[0025] A double-arch tunnel excavation supporting equipment, including two groups of connecting supports 1, the bottom of the connecting support 1 is connected with multiple groups of lifting hydraulic rods 2, the bottom of the lifting hydraulic rod 2 is connected with the fixed connecting rod 3, the both ends of the fixed connecting rod 3 are connected with the connecting box 4, the connecting box 4 is connected with the drive roller 5, the end surface of the connecting box 4 is connected with the controller 6, the end surface of the adjustable butt joint structure 7 is connected with the top support arch plate 8 through the connecting frame, the side wall of the top support arch plate 8 is connected with the rotating support plate 9 through the hinge symmetrically, the connecting support 1 and the rotating support plate 9 are rotatably connected with multiple groups of top support hydraulic rods 10 through the rotating seat;

[0026] Further, the lifting hydraulic rod 2 is connected with the controller 6 through wires and the connection mode is electric connection, the drive roller 5 is connected with the controller 6 through wires and the connection mode is electric connection, the top support hydraulic rod 10 is connected with the controller 6 through wires and the connection mode is electric connection, the operation of the lifting hydraulic rod 2, the drive roller 5 and the top support hydraulic rod 10 can be controlled through the controller 6;

[0027] Further, the side wall of the connecting box 4 and the connecting support 1 correspondingly are provided with a sliding groove, wherein the connecting mode of the connecting support 1 and the sliding groove is sliding connection, when the lifting hydraulic rod 2 operates, the connecting support 1 can be moved in the sliding groove;

[0028] In this embodiment, with reference to Figure 1 、 Figure 2 、 Figure 3 and Figure 5 , the adjustable docking structure 7 comprises a plurality of sets of connecting rods 701 connected to the end face of the connecting support 1, a driving motor 702 connected to the side wall of the front end of the connecting rod 701 through a connecting seat, a driving rod 703 connected to the driving end of the driving motor 702 through a shaft coupling, a driven bevel gear 705 engaged with the driving bevel gear 704 at the other end of the driving rod 703, a rotating rod 706 connected to the center of the driven bevel gear 705, a plurality of sets of rotating bevel gears 707 connected to the side wall of the rotating rod 706 and located in the inner cavity of the connecting rod 701, a transmission bevel gear 708 engaged with the side wall of the rotating bevel gear 707, a rotating lead screw 709 connected to the center of the transmission bevel gear 708, a connecting slider 710 connected to the side wall of the rotating lead screw 709, a moving connecting pipe 711 connected to the side wall of the connecting slider 710 and located in the inner cavity of the connecting rod 701, a limiting slider 712 symmetrically connected to the outer wall of the moving connecting pipe 711, an L-shaped sliding groove 713 provided on the outer wall of the connecting rod 701 and corresponding to the limiting slider 712, a connecting sleeve 714 connected to one end of the left moving connecting pipe 711, a fixed clamping seat 715 provided at one end of the right moving connecting pipe 711 and corresponding to the connecting sleeve 714, a fixed clamping plate 716 symmetrically connected to the outer wall of the fixed clamping seat 715, and a connecting slot 717 provided on the side wall of the connecting sleeve 714 and corresponding to the fixed clamping plate 716.

[0029] Based on the above structure and the connecting relationship under the condition, the driving motor 702 is controlled by the controller 6, and when the driving end of the driving motor 702 rotates, the driving rod 703, the driving bevel gear 704, the driven bevel gear 705, the rotating rod 706, the plurality of sets of rotating bevel gears 707, the transmission bevel gear 708 and the rotating lead screw 709 are sequentially driven to rotate, and when the rotating lead screw 709 rotates, the connecting slider 710, the moving connecting pipe 711 and the limiting slider 712 are driven to move on the side wall of the rotating lead screw 709, and when the limiting slider 712 moves on the side wall of the rotating lead screw 709, the limiting slider 712 moves in the L-shaped sliding groove 713, and after the fixed clamping plate 716 on the outer wall of the fixed clamping seat 715 and the connecting slot 717 on the connecting sleeve 714 cooperate with each other, the limiting slider 712 also moves to one end of the L-shaped sliding groove 713, at this time, when the rotating lead screw 709 rotates, the moving connecting pipe 711 and the limiting slider 712 can be driven to rotate, and the connecting sleeve 714 and the fixed clamping seat 715 are driven to rotate relative to each other, and after the connecting sleeve 714 and the fixed clamping seat 715 rotate relative to each other, the fixed clamping plate 716 and the connecting slot 717 cooperate with each other, and then the docking work of the two sets of supporting equipment is completed.

[0030] Further, the driving motor 702 is connected with the controller 6 through wires and in an electrical connection mode, and the operation of the driving motor 702 can be controlled by the controller 6;

[0031] Further, the driving rod 703 is connected with the side wall of the connecting link 701 through a bearing seat, and the connection mode between the driving rod 703 and the bearing seat is a rotating connection mode; the rotating rod 706 is connected with the side wall of the connecting link 701 through a bearing seat, and the connection mode between the rotating rod 706 and the bearing seat is a rotating connection mode; the rotating screw rod 709 is connected with the side wall of the inner cavity of the connecting link 701 through a bearing seat, and the connection mode between the rotating screw rod 709 and the bearing seat is a rotating connection mode; when the driving motor 702 operates, the driving rod 703, the rotating rod 706 and the rotating screw rod 709 can be driven to operate;

[0032] Further, the rotating screw rod 709 is connected with the connecting sliding block 710 in a sliding connection mode; the connecting link 701 is connected with the moving connecting pipe 711 in a sliding connection mode; the limiting sliding block 712 is connected with the L-shaped sliding groove 713 in a sliding connection mode; the L-shaped sliding groove 713 and the connecting clamping groove 717 are both L-shaped structures; the inner cavity of the connecting clamping sleeve 714 is matched with the fixed clamping seat 715 in a clearance fit mode; the fixed clamping plate 716 is matched with the connecting clamping groove 717 in a clearance fit mode; when the rotating screw rod 709 rotates, the fixed clamping plate 716 and the connecting clamping groove 717 can be connected.

[0033] The working process of the double-arch tunnel excavation and supporting device is as follows: when the double-arch tunnel excavation and supporting device is used, first, the device is connected with the power supply, so that the device is in a working state; under the condition that the lifting hydraulic rod 2 is connected with the controller 6 through wires and in an electrical connection mode, the lifting hydraulic rod 2 is started, so that the driving end of the lifting hydraulic rod 2 moves upward, and the supporting arch plate 8 abuts against the top of the tunnel.

[0034] Afterwards, the driving motor 702 is controlled by the controller 6, when the driving end of the driving motor 702 rotates, the driving rod 703 is driven to rotate, the driving rod 703 drives the driving bevel gear 704 to rotate, the driving bevel gear 704 drives the driven bevel gear 705 to rotate, the driven bevel gear 705 drives the rotating rod 706 to rotate, the rotating rod 706 drives the groups of rotating bevel gears 707 to rotate, the rotating bevel gears 707 drive the transmission bevel gear 708 to rotate, the transmission bevel gear 708 drives the rotating lead screw 709 to rotate, when the rotating lead screw 709 rotates, the connecting sliding block 710 and the moving connecting pipe 711 and the limiting sliding block 712 are driven to move on the side wall of the rotating lead screw 709, when the limiting sliding block 712 moves on the side wall of the rotating lead screw 709, the limiting sliding block 712 moves in the L-shaped sliding groove 713, after the fixed clamping plate 716 on the outer wall of the fixed clamping seat 715 and the connecting clamping groove 717 on the connecting clamping sleeve 714 are matched with each other, the limiting sliding block 712 also moves to one end of the L-shaped sliding groove 713, at this time, when the rotating lead screw 709 rotates, the moving connecting pipe 711 and the limiting sliding block 712 can be driven to rotate, thereby driving the connecting clamping sleeve 714 and the fixed clamping seat 715 to rotate relative to each other, after the connecting clamping sleeve 714 and the fixed clamping seat 715 rotate relative to each other, the fixed clamping plate 716 and the connecting clamping groove 717 are matched with each other, thereby completing the butt joint work of the two groups of supporting devices.

[0035] Finally, under the condition that the jacking hydraulic rod 10 is connected with the controller 6 through wires and the connection mode is electrical connection, the jacking hydraulic rod 10 is started, the driving end of the jacking hydraulic rod 10 moves outward, thereby driving the rotating support plate 9 to rotate, so that the rotating support plate 9 abuts against the side wall of the tunnel.

[0036] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A double-arch tunnel excavation support apparatus comprising two sets of connecting brackets (1), characterized in that: The bottom of the connecting support (1) is connected with a plurality of groups of lifting hydraulic rods (2), the bottom of the lifting hydraulic rod (2) is connected with a fixed connecting rod (3), both ends of the fixed connecting rod (3) are connected with an adapter box (4), the adapter box (4) is connected with a drive roller (5), the end surface of the adapter box (4) is connected with a controller (6), the end surface of the connecting support (1) is connected with an adjustable butt joint structure (7), the end surface of the adjustable butt joint structure (7) is connected with a top support arch plate (8) through a connecting frame, the side wall of the top support arch plate (8) is symmetrically connected with a rotating support plate (9) through a hinge, and the connecting support (1) and the rotating support plate (9) are rotatably connected with a plurality of groups of top support hydraulic rods (10) through rotating seats.

2. A double-arch tunnel excavation support apparatus according to claim 1, characterized in that: The adjustable butt joint structure (7) comprises a plurality of groups of adapter connecting rods (701), the adapter connecting rod (701) is connected to the end surface of the connecting support (1), the side wall of the front end adapter connecting rod (701) is connected with a drive motor (702) through a connecting seat, the drive end of the drive motor (702) is connected with a drive rod (703) through a shaft coupling, the other end of the drive rod (703) is engagedly connected with a driven bevel gear (705) through a drive bevel gear (704), the center of the driven bevel gear (705) is connected with a rotating rod (706), a plurality of groups of rotating bevel gears (707) are connected to the side wall of the rotating rod (706) and located in the inner cavity of the adapter connecting rod (701), the side wall of the rotating bevel gear (707) is engagedly connected with a transmission bevel gear (708), the center of the transmission bevel gear (708) is connected with a rotating lead screw (709), the side wall of the rotating lead screw (709) is connected with an adapter sliding block (710), the side wall of the adapter sliding block (710) is connected with a moving connecting pipe (711) and located in the inner cavity of the adapter connecting rod (701), the outer wall of the moving connecting pipe (711) is symmetrically connected with a limiting sliding block (712), an L-shaped sliding groove (713) is formed in the outer wall of the adapter connecting rod (701) and corresponds to the limiting sliding block (712), one end of the left moving connecting pipe (711) is connected with an adapter sleeve (714), one end of the right moving connecting pipe (711) is provided with a fixed clamping seat (715) and corresponds to the adapter sleeve (714), the outer wall of the fixed clamping seat (715) is symmetrically connected with a fixed clamping plate (716), and the side wall of the adapter sleeve (714) is provided with an adapter clamping groove (717) and corresponds to the fixed clamping plate (716).

3. A double-arch tunnel excavation support apparatus according to claim 2, characterized in that: The lifting hydraulic rod (2) is connected with the controller (6) through wires and the connection mode is electrical connection, the side wall of the adapter box (4) is provided with a sliding groove and corresponds to the connecting support (1), and the connecting mode of the connecting support (1) and the sliding groove is sliding connection.

4. A double-arch tunnel excavation support apparatus according to claim 2, characterized in that: The drive roller (5) is connected with the controller (6) through wires and the connection mode is electrical connection, and the top support hydraulic rod (10) is connected with the controller (6) through wires and the connection mode is electrical connection.

5. A double-arch tunnel excavation support apparatus according to claim 2, characterized in that: The driving motor (702) is connected with the controller (6) through wires and the connection mode is electrical connection, the driving rod (703) is connected on the side wall of the connecting link (701) through a bearing seat, and the connection mode between the driving rod (703) and the bearing seat is rotary connection.

6. A double-arch tunnel excavation support apparatus according to claim 2, characterized in that: The rotating rod (706) is connected on the side wall of the connecting link (701) through a bearing seat, and the connection mode between the rotating rod (706) and the bearing seat is rotary connection, the rotating screw rod (709) is connected on the side wall of the inner cavity of the connecting link (701) through a bearing seat, and the connection mode between the rotating screw rod (709) and the bearing seat is rotary connection.

7. A double-arch tunnel excavation support apparatus according to claim 2, characterized in that: The connection mode between the rotating screw rod (709) and the connecting slider (710) is sliding connection, the connection mode between the connecting link (701) and the moving connecting pipe (711) is sliding connection, and the connection mode between the limiting slider (712) and the L-shaped sliding groove (713) is sliding connection.

8. A double-arch tunnel excavation support apparatus according to claim 2, characterized in that: The L-shaped sliding groove (713) and the connecting clamping groove (717) are both L-shaped structures, the inner cavity of the connecting clamping sleeve (714) is matched with the fixed clamping seat (715) in a clearance fit mode, and the fixed clamping plate (716) is matched with the connecting clamping groove (717) in a clearance fit mode.

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