CN115929366A - Adjustable tunnel section supporting mechanism for subway construction - Google Patents
Adjustable tunnel section supporting mechanism for subway construction Download PDFInfo
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- CN115929366A CN115929366A CN202211444050.XA CN202211444050A CN115929366A CN 115929366 A CN115929366 A CN 115929366A CN 202211444050 A CN202211444050 A CN 202211444050A CN 115929366 A CN115929366 A CN 115929366A
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- 230000001681 protective effect Effects 0.000 claims abstract description 27
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 2
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- 230000008569 process Effects 0.000 description 5
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Abstract
The invention discloses an adjustable tunnel section supporting mechanism for subway construction, which comprises a bearing bottom plate, wherein a protective cover is arranged on the bearing bottom plate; the traveling mechanism is fixedly connected to the bottom end of the bearing bottom plate and is arranged corresponding to the track; the fixing mechanism is fixedly arranged at the bottom end of the bearing bottom plate and is positioned at two sides of the track; the driving mechanism is arranged on the bearing bottom plate, and the protective cover covers the driving mechanism; the supporting mechanism comprises a central supporting component and two side supporting components which are hinged with each other; the bottom ends of the central supporting component and the side supporting components extend into the protective cover and are in transmission connection with the driving mechanism. The device has the advantages of flexible structure adjustment, convenient use, no need of field installation, convenient and flexible adjustment of the supporting position and the supporting angle, improved applicability of supporting on the cross section of the tunnel, greatly accelerated supporting efficiency of the cross section of the tunnel and improved safety of tunnel construction.
Description
Technical Field
The invention relates to the technical field of subway tunnel construction, in particular to an adjustable tunnel section supporting mechanism for subway construction.
Background
In order to reduce the occupancy rate of the subway network to the ground space, the subway is generally built in an underground tunnel; in the tunnel construction process, deformation of surrounding soil layers or soil bodies and change of stress fields caused by construction, extrusion, stirring, vibration and the like of construction machinery all cause stress unbalance of an existing subway tunnel structure, so that the tunnel structure generates a plurality of deformations such as local horizontal displacement, sedimentation, stretching, compression and the like.
However, the existing tunnel section supporting mechanism generally adopts a field manual construction mode, has low construction efficiency and great construction difficulty, cannot be moved and adjusted after being constructed, is not suitable for tunnel sections of different specifications, and has poor applicability; therefore, an adjustable tunnel section supporting mechanism for subway construction, which is simple and convenient to use, high in supporting efficiency and flexible in adjustment, is needed to solve the technical problems.
Disclosure of Invention
The invention aims to provide an adjustable tunnel section supporting mechanism for subway construction, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme: the invention provides an adjustable tunnel section supporting mechanism for subway construction, which comprises:
the bearing bottom plate is provided with a track below and is provided with a protective cover;
the traveling mechanism is fixedly connected to the bottom end of the bearing bottom plate, the traveling mechanism is arranged corresponding to the track, and the traveling mechanism is in rolling contact with the top end of the track;
the fixing mechanisms are fixedly arranged at the bottom end of the bearing bottom plate, are positioned at two sides of the track and are detachably connected with the ground of the tunnel;
the driving mechanism is arranged on the bearing bottom plate, and the protective cover covers the driving mechanism;
the supporting mechanism comprises a central supporting assembly and two side supporting assemblies, and the central supporting assembly is hinged with the two side supporting assemblies respectively; the bottom ends of the central supporting component and the side supporting components extend into the protective cover and are in transmission connection with the driving mechanism.
Preferably, the central support assembly comprises a support rod in transmission connection with the driving mechanism, and the support rod is in sliding connection with the protective cover; the top end of the supporting rod is fixedly connected with a supporting piece, and the supporting piece is abutted against the inner wall of the tunnel; the supporting rod is provided with a top member, and the top member is in transmission connection with the supporting member; the structure of the side supporting component is the same as that of the central supporting component; the supporting rods of the central supporting component are respectively hinged with the supporting rods of the two side supporting components.
Preferably, the supporting member comprises a first supporting plate fixedly connected to the top end of the supporting rod, the top end of the first supporting plate is arc-shaped and is abutted against the inner wall of the tunnel, two ends of the first supporting plate are respectively hinged with a second supporting plate, and the top surface of the second supporting plate is arc-shaped and is detachably connected with the inner wall of the tunnel; and the two second supporting plates are respectively in transmission connection with the jacking piece.
Preferably, the tightening piece comprises a first motor fixedly mounted on the support rod, the output end of the first motor is in transmission connection with a threaded sleeve, and the threaded sleeve is rotatably sleeved on the support rod; the outer wall threaded connection of swivel nut has the tight piece in top, the both sides wall of the tight piece in top articulates respectively has the tight pole in top, the tight pole in top with the bottom of second backup pad is articulated.
Preferably, the driving mechanism comprises a driving screw rod which is rotatably connected in the protective cover, a plurality of central sliding blocks are in threaded connection with the driving screw rod, side sliding blocks are symmetrically arranged on two sides of each central sliding block respectively, and the side sliding blocks are in threaded connection with the driving screw rod; the outer walls of the central sliding block and the side sliding blocks are respectively hinged with a transmission assembly, and the transmission assemblies are hinged with the bottom ends of the supporting rods; one end of the driving screw rod extends out of the protective cover and is connected with a driving motor in a transmission mode, and the driving motor is installed on the bearing bottom plate.
Preferably, the transmission assembly comprises hinged seats fixedly connected with the central slider and the outer wall of the side slider respectively, the hinged seats are hinged with transmission rods, and the top ends of the transmission rods are hinged with the bottom ends of the supporting rods.
Preferably, the side sliding block comprises a central sleeve which is in threaded connection with the driving screw, a positioning block is rotatably connected to the outer side of the central sleeve, and the hinge base is fixedly connected to the outer wall of the positioning block.
Preferably, running gear includes a plurality of fixed mounting and is in the walking pneumatic cylinder of bearing the bottom plate bottom, the output of walking pneumatic cylinder is to the lower and swivelling joint has the mounting panel, the walking wheel is installed to the bottom of mounting panel, the walking wheel corresponds the setting with the track, the homonymy the walking wheel with orbital one side top rolling contact.
Preferably, the fixing mechanism comprises a plurality of supporting legs fixedly connected to the bottom end of the bearing bottom plate, and the supporting legs are located on the outer side of the track and detachably connected with the ground; the supporting legs are internally provided with fixing components which are detachably connected with the tunnel ground.
Preferably, the fixing assembly comprises a fixing hole formed in the supporting leg, and the fixing hole penetrates through the bottom end of the supporting leg; the fixed hole is connected with the lifting plate in a sliding mode, the top end of the lifting plate is provided with a fixed motor, the output end of the fixed motor penetrates through the lifting plate downwards and is in transmission connection with a rotating plate, and the outer wall of the rotating plate is in threaded connection with the inner wall of the fixed hole; the bottom of the rotating plate is fixedly connected with a fixed rod, the fixed rod is inserted into the ground of the tunnel, and the outer wall of the fixed rod is fixedly connected with a helical blade.
The invention discloses the following technical effects: the invention discloses an adjustable tunnel section supporting mechanism for subway construction, wherein a bearing bottom plate is used as a bearing mechanism of a device, a walking mechanism at the bottom end of the bearing bottom plate drives the bearing bottom plate to move along a track, so that the position of the device can be flexibly adjusted, and the problem that the device cannot be adjusted after being installed in the prior art is solved; the fixing mechanisms are positioned on two sides of the track, and after the fixing mechanisms are selected and positioned, the fixing mechanisms are in contact with the ground and are fixed with the ground, so that the device is prevented from moving in the process of supporting the section of the tunnel, the stability of the support is ensured, and the applicability of the device is improved by combining with the travelling mechanism; the driving mechanism drives the supporting mechanism to support the section of the tunnel and ensure sufficient supporting force, and meanwhile, the later-stage disassembly is facilitated, so that the construction efficiency is improved; the supporting mechanism comprises a center supporting component and a side supporting component which are hinged to each other, the center supporting component is used for supporting the top end of the tunnel, the side supporting component is used for supporting the two sides of the tunnel, the supporting angle of the side supporting component can be changed through the hinged relation, the adjustment is flexible, the tunnel supporting mechanism is suitable for tunnel sections of different specifications and forms, and the applicability of the tunnel supporting mechanism in the tunnel section supporting process is improved. The device has the advantages of flexible structure adjustment, convenient use, no need of field installation, convenient and flexible adjustment of the supporting position and the supporting angle, improved applicability of supporting on the cross section of the tunnel, greatly accelerated supporting efficiency of the cross section of the tunnel and improved safety of tunnel construction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a side view of an adjustable supporting mechanism for a section of a tunnel for subway construction according to the present invention;
FIG. 2 is an enlarged view, partially in section, of FIG. 1A of the present invention;
FIG. 3 is a front view of the load floor of the present invention;
FIG. 4 is an enlarged view of a portion B of FIG. 3 according to the present invention;
FIG. 5 is a front view of the transmission assembly of the present invention;
FIG. 6 is an axial view of the shield of the present invention;
FIG. 7 is a front view of the shield of the present invention;
the method comprises the following steps of 1, carrying a bottom plate; 2. a traveling mechanism; 3. a fixing mechanism; 4. a drive mechanism; 5. a support mechanism; 6. a track; 11. a protective cover; 12. an adjustment hole; 13. an adjustment groove; 14. an adjusting plate; 15. a positioning spring; 16. positioning a plate; 21. a traveling hydraulic cylinder; 22. mounting a plate; 23. a traveling wheel; 31. supporting legs; 32. a fixing hole; 33. a lifting plate; 34. fixing the motor; 35. a rotating plate; 36. fixing the rod; 37. a helical blade; 38. a guide groove; 39. a guide block; 41. a drive screw; 42. a central slider; 43. a side slider; 44. a drive motor; 45. a hinged seat; 46. a transmission rod; 47. a central sleeve; 48. positioning blocks; 51. a support bar; 52. a first support plate; 53. a second support plate; 54. a first motor; 55. a threaded sleeve; 56. a jacking block; 57. a tightening rod; 58. a driving gear; 59. a driven gear; 510. a reinforcing bar; 511. a connecting rod; 512. and a limiting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1 to 7, the present invention provides an adjustable tunnel section supporting mechanism for subway construction, including:
the device comprises a bearing bottom plate 1, wherein a track 6 is laid below the bearing bottom plate 1, and a protective cover 11 is arranged on the bearing bottom plate 1;
the walking mechanism 2 is fixedly connected to the bottom end of the bearing bottom plate 1, the walking mechanism 2 is arranged corresponding to the track 6, and the walking mechanism 2 is in rolling contact with the top end of the track 6;
the fixing mechanism 3 is fixedly arranged at the bottom end of the bearing bottom plate 1, and the fixing mechanism 3 is positioned at two sides of the track 6 and detachably connected with the tunnel ground;
the driving mechanism 4 is arranged on the bearing bottom plate 1, and the protective cover 11 is covered on the driving mechanism 4;
the supporting mechanism 5 comprises a central supporting assembly and two side supporting assemblies, and the central supporting assembly is hinged with the two side supporting assemblies respectively; the bottom ends of the central supporting component and the side supporting components extend into the protective cover 11 and are in transmission connection with the driving mechanism 4.
The invention discloses an adjustable tunnel section supporting mechanism for subway construction, wherein a bearing bottom plate 1 is used as a bearing mechanism of a device, a walking mechanism 2 at the bottom end of the bearing bottom plate drives the bearing bottom plate 1 to move along a track 6, so that the flexible adjustment of the position of the device is realized, and the problem that the device cannot be adjusted after being installed in the prior art is solved; the fixing mechanisms 3 are positioned on two sides of the track 6, after the selecting and positioning are carried out, the fixing mechanisms 3 are in contact with the ground and are fixed with the ground, the device is prevented from moving in the process of supporting the section of the tunnel, the supporting stability is ensured, and the applicability of the device is improved by combining with the travelling mechanism 2; the driving mechanism 4 drives the supporting mechanism 5 to support the section of the tunnel and ensure sufficient supporting force, and meanwhile, the later-stage disassembly is facilitated, so that the construction efficiency is improved; the supporting mechanism 5 comprises a center supporting component and a side supporting component which are hinged to each other, the center supporting component is used for supporting the top end of the tunnel, the side supporting component is used for supporting the two sides of the tunnel, the supporting angle of the side supporting component can be changed through the hinged relation, the adjustment is flexible, the tunnel supporting mechanism is suitable for tunnel sections of different specifications and different forms, and the applicability of the tunnel supporting mechanism in the tunnel section supporting process is improved.
In a further optimized scheme, the central support assembly comprises a support rod 51 in transmission connection with the driving mechanism 4, and the support rod 51 is in sliding connection with the protective cover 11; the top end of the support rod 51 is fixedly connected with a support member which is abutted against the inner wall of the tunnel; the supporting rod 51 is provided with a jacking piece, and the jacking piece is in transmission connection with the supporting piece; the structure of the side supporting component is the same as that of the central supporting component; the supporting rods 51 of the central supporting assembly are respectively hinged with the supporting rods 51 of the two side supporting assemblies.
The bottom end of the supporting rod 51 is in transmission connection with the driving mechanism 4, the length of the supporting rod 51 extending out of the protective cover 11 is changed through the driving mechanism 4, and then the supporting piece at the top end is in contact with and supports the top end of the tunnel; the jacking piece pushes the two ends of the supporting piece to jack the top end of the tunnel, so that the device is suitable for different shapes and specifications of the top end of the tunnel, and the applicability is improved; the structure of the side support assembly is the same as that of the center support assembly and will not be described again.
Furthermore, two sides of the support rod 51 of the central support assembly are respectively hinged with a connection rod 511, and the other end of the connection rod 511 is hinged with the support rod 51 of the side support assembly.
Further, the connection rod 511 is preferably one of the components having a telescopic function, such as a hydraulic cylinder, a pneumatic cylinder, or an electric push rod, and is selected according to the requirement, and is not limited herein.
According to a further optimized scheme, the supporting piece comprises a first supporting plate 52 fixedly connected to the top end of the supporting rod 51, the top end of the first supporting plate 52 is arc-shaped and is abutted to the inner wall of the tunnel, two ends of the first supporting plate 52 are respectively hinged to a second supporting plate 53, and the top surface of the second supporting plate 53 is arc-shaped and is detachably connected with the inner wall of the tunnel; the two second supporting plates 53 are respectively in transmission connection with the tightening piece. First backup pad 52 top is the arc, with tunnel top butt, and its both sides are articulated through the hinge to have second backup pad 53, but the second backup pad 53 of both sides is angle regulation under the effect of tight piece in top, conveniently supports the tunnel of different shapes, has improved the suitability.
Furthermore, a plurality of reinforcing rods 510 are obliquely fixedly connected between the first supporting plate 52 and the supporting rod 51, and the reinforcing rods 510 increase the stability and the supporting force of the first supporting plate 52.
In a further optimized scheme, the jacking piece comprises a first motor 54 fixedly arranged on the supporting rod 51, the output end of the first motor 54 is in transmission connection with a threaded sleeve 55, and the threaded sleeve 55 is rotatably sleeved on the supporting rod 51; the outer wall of the threaded sleeve 55 is in threaded connection with a puller block 56, two side walls of the puller block 56 are respectively hinged with a puller rod 57, and the puller rod 57 is hinged with the bottom end of the second supporting plate 53. The output end of the first motor 54 is fixedly connected with a driving gear 58, the support rod 51 is rotatably connected with a driven gear 59, and the driven gear 59 is meshed with the driving gear 58; the driven gear 59 is fixedly connected with the top end of the threaded sleeve 55, and the bottom end of the threaded sleeve 55 is fixedly connected with a limiting plate 512; the first motor 54 rotates the threaded sleeve 55, so that the tightening block 56 is raised or lowered, and the angle of the second support plate 53 is changed by the tightening rod 57 between the tightening block 56 and the second support plate 53.
According to a further optimized scheme, the driving mechanism 4 comprises a driving screw 41 which is rotatably connected in the protective cover 11, a plurality of central sliding blocks 42 are in threaded connection with the driving screw 41, side sliding blocks 43 are symmetrically arranged on two sides of each central sliding block 42 respectively, and the side sliding blocks 43 are in threaded connection with the driving screw 41; the outer walls of the central sliding block 42 and the side sliding blocks 43 are respectively hinged with a transmission component, and the transmission components are hinged with the bottom ends of the supporting rods 51; one end of the driving screw rod 41 extends out of the protective cover 11 and is connected with a driving motor 44 in a transmission way, and the driving motor 44 is arranged on the bearing bottom plate 1; the transmission assembly comprises a hinge seat 45 fixedly connected to the outer walls of the central slider 42 and the side slider 43 respectively, a transmission rod 46 is hinged to the hinge seat 45, and the top end of the transmission rod 46 is hinged to the bottom end of the support rod 51. The driving motor 44 drives the driving screw 41 to rotate, so as to change the positions of the central slider 42 and the side sliders 43, and since the two ends of the transmission rod 46 are respectively hinged to the hinge seat 45 and the supporting rod 51, when the positions of the central slider 42 and the side sliders 43 are changed, the angle of the transmission rod 46 is changed, so that the length of the supporting rod 51 extending out of the protective cover 11 is changed, and the supporting member is driven to ascend and descend.
Further, the shield 11 has a cylindrical shape, and the drive screw 41 is located at the center of the shield 11.
In a further optimized scheme, the lateral sliding block 43 comprises a central sleeve 47 which is in threaded connection with the driving screw 41, a positioning block 48 is rotatably connected outside the central sleeve 47, and the hinge seat 45 is fixedly connected to the outer wall of the positioning block 48. The supporting rods 51 of the lateral supporting assemblies are hinged with the supporting rods 51 of the central supporting assembly through the connecting rods 511, so that the angles of the supporting rods 51 of the lateral supporting assemblies can be adjusted; when the adjustment is required, the length of the connecting rod 511 is changed to change the angles of the two support rods 51, and at this time, the positioning block 48 rotates at the same angle on the outer wall of the central sleeve 47 to prevent the support rods 51 of the side support assembly from being clamped.
Furthermore, the position of the protective cover 11 corresponding to the support rod 51 of the side support assembly is provided with an adjusting hole 12, the periphery of the adjusting hole 12 is provided with an adjusting groove 13, an adjusting plate 14 is connected in the adjusting groove 13 in a sliding manner, and the support rod 51 passes through the adjusting plate 14 and is connected with the adjusting plate 14 in a sliding manner; when the angle of the support rod 51 is changed, the position of the adjusting plate 14 in the adjusting groove 13 is changed, and the locking is prevented.
Furthermore, two sides of the adjusting groove 13 are respectively fixedly connected with a positioning spring 15, the top end of the positioning spring 15 is fixedly connected with a positioning plate 16 which is slidably connected with the adjusting groove 13, and the positioning plate 16 is detachably connected with two ends of the adjusting plate 14; when the adjusting plate 14 contacts the positioning plate 16 and compresses the positioning spring 15 to the limit position, the limit adjusting angle of the supporting rod 51 is also reached, and the positioning is convenient.
Furthermore, scales (not shown) can be arranged on two sides of the adjusting groove 13, and the scales display an included angle with the vertical direction, so that the angle of the supporting rod 51 can be conveniently judged.
Further optimize the scheme, running gear 2 includes a plurality of fixed mounting at the walking pneumatic cylinder 21 that bears the bottom of bottom plate 1, and the output of walking pneumatic cylinder 21 is to the lower and swivelling joint has mounting panel 22, and walking wheel 23 is installed to mounting panel 22's bottom, and walking wheel 23 corresponds the setting with track 6, and walking wheel 23 and track 6's one side top rolling contact of homonymy. The height of the bearing bottom plate 1 is changed by the extension and contraction of the walking hydraulic cylinder 21, so that the fixing mechanism 3 is in contact with or separated from the ground, the device can walk when the fixing mechanism 3 is separated from the ground, and when the fixing mechanism 3 is in contact with the ground and the walking wheels 23 are separated from the track 6, the device is in a fixed and immovable state; the cross section of the walking wheel 23 is horizontal I-shaped, and the walking wheel is clamped on the track 6 to prevent derailment, the principle of the walking wheel is similar to that of a train wheel and a rail, and the detailed description is omitted; the mounting plate 22 is rotatably connected with the traveling hydraulic cylinder 21, so that the traveling wheels 23 can turn according to the angle of the track 6, and the locking or derailing is prevented.
In a further optimized scheme, the fixing mechanism 3 comprises a plurality of supporting feet 31 fixedly connected to the bottom end of the bearing bottom plate 1, and the supporting feet 31 are positioned on the outer side of the track 6 and detachably connected with the ground; a fixing component is arranged in the supporting leg 31 and detachably connected with the tunnel ground; the fixing component comprises a fixing hole 32 arranged in the supporting leg 31, and the fixing hole 32 penetrates through the bottom end of the supporting leg 31; the fixed hole 32 is connected with the lifting plate 33 in a sliding manner, the top end of the lifting plate 33 is provided with a fixed motor 34, the output end of the fixed motor 34 downwards penetrates through the lifting plate 33 and is in transmission connection with a rotating plate 35, and the outer wall of the rotating plate 35 is in threaded connection with the inner wall of the fixed hole 32; the bottom end of the rotating plate 35 is fixedly connected with a fixed rod 36, the fixed rod 36 is inserted into the tunnel floor, and the outer wall of the fixed rod 36 is fixedly connected with a helical blade 37. When the supporting legs 31 are separated from the ground, the device is convenient to move, and the supporting position can be flexibly selected; when the device needs to be fixed, the walking hydraulic cylinder 21 is shortened to enable the supporting legs 31 to contact the ground, the fixing motor 34 is started, the fixing motor 34 drives the rotating plate 35 to rotate, the rotating plate 35 drives the fixing rod 36 to rotate and descend and drill into the ground, the whole device is fixed on the ground, and the supporting failure caused by sliding when the device is supported is prevented; the helical blades 37 increase the resistance to pullout of the fixation rods 36, thereby improving device stability.
Furthermore, guide blocks 39 are fixedly connected to two sides of the lifting plate 33, a guide groove 38 is longitudinally formed in the side wall of the fixing hole 32, and the guide blocks 39 are matched with the guide groove 38 and are in sliding connection, so that the lifting plate 33 cannot rotate.
The using method comprises the following steps:
firstly, a track 6 is laid in a tunnel, a travelling mechanism 2 of the device is dropped on the track 6, then the device is moved to a position needing to be supported and stopped, a travelling hydraulic cylinder 21 is shortened to enable a supporting leg 31 to be grounded, and then a fixing motor 34 is started to screw a fixing rod 36 into the ground, so that the whole device is fixed.
Adjusting the length of the connecting rod 511 to make the supporting rod 51 of the side supporting component shift to both sides to reach a predetermined supporting angle, and then starting the driving motor 44 to make the driving screw 41 drive the supporting rod 51 to extend out of the protective cover 11 for a longer distance and finally push against the tunnel; and starting the first motor 54, wherein the first motor 54 drives the threaded sleeve 55 to rotate, so that the position of the jacking block 56 is changed, and the second supporting plate 53 is abutted against the tunnel to complete supporting.
After the supporting is finished, the first motor 54 is started reversely, the second supporting plate 53 is retracted, the driving screw 41 is reversely rotated, the supporting rod 51 is retracted into the protective cover 11, the connecting rod 511 is shortened, the supporting rods 51 on the two sides are closed, and the occupied area is reduced; and then reversing the fixing motor 34, pulling out the fixing rod 36 from the ground, retracting the fixing rod into the fixing hole 32, finally extending the walking hydraulic cylinder 21, and supporting the supporting foot 31 away from the ground, so that the device can be conveniently moved to the next position to be supported.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above embodiments are only for describing the preferred mode of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides a tunnel section supporting mechanism for subway construction with adjustable which characterized in that includes:
the device comprises a bearing bottom plate (1), wherein a track (6) is laid below the bearing bottom plate (1), and a protective cover (11) is arranged on the bearing bottom plate (1);
the walking mechanism (2) is fixedly connected to the bottom end of the bearing bottom plate (1), the walking mechanism (2) is arranged corresponding to the track (6), and the walking mechanism (2) is in rolling contact with the top end of the track (6);
the fixing mechanism (3) is fixedly arranged at the bottom end of the bearing bottom plate (1), and the fixing mechanism (3) is positioned on two sides of the track (6) and detachably connected with the tunnel ground;
the driving mechanism (4) is installed on the bearing bottom plate (1), and the protective cover (11) covers the driving mechanism (4);
the supporting mechanism (5) comprises a central supporting component and two side supporting components, and the central supporting component is hinged with the two side supporting components respectively; the bottom ends of the central supporting component and the side supporting components extend into the protective cover (11) and are in transmission connection with the driving mechanism (4).
2. The adjustable tunnel section supporting mechanism for subway construction as claimed in claim 1, wherein: the central support assembly comprises a support rod (51) in transmission connection with the driving mechanism (4), and the support rod (51) is in sliding connection with the protective cover (11); the top end of the supporting rod (51) is fixedly connected with a supporting piece, and the supporting piece is abutted against the inner wall of the tunnel; the supporting rod (51) is provided with a top fastening piece, and the top fastening piece is in transmission connection with the supporting piece; the structure of the side supporting component is the same as that of the central supporting component; the supporting rods (51) of the central supporting assembly are hinged with the supporting rods (51) of the two side supporting assemblies respectively.
3. The adjustable tunnel section supporting mechanism for subway construction as claimed in claim 2, wherein: the supporting piece comprises a first supporting plate (52) fixedly connected to the top end of the supporting rod (51), the top end of the first supporting plate (52) is arc-shaped and is abutted against the inner wall of the tunnel, two ends of the first supporting plate (52) are respectively hinged with a second supporting plate (53), and the top surface of the second supporting plate (53) is arc-shaped and is detachably connected with the inner wall of the tunnel; the two second supporting plates (53) are respectively in transmission connection with the tightening piece.
4. The adjustable tunnel section supporting mechanism for subway construction as claimed in claim 3, wherein: the puller comprises a first motor (54) fixedly mounted on the supporting rod (51), the output end of the first motor (54) is in transmission connection with a threaded sleeve (55), and the threaded sleeve (55) is rotatably sleeved on the supporting rod (51); the outer wall threaded connection of swivel nut (55) has tight piece (56) in top, the both sides wall of tight piece (56) in top articulates respectively has tight pole (57) in top, tight pole (57) in top with the bottom of second backup pad (53) is articulated.
5. The adjustable tunnel section supporting mechanism for subway construction as claimed in claim 2, wherein: the driving mechanism (4) comprises a driving screw rod (41) which is rotatably connected in the protective cover (11), a plurality of central sliding blocks (42) are in threaded connection with the driving screw rod (41), side sliding blocks (43) are symmetrically arranged on two sides of each central sliding block (42), and the side sliding blocks (43) are in threaded connection with the driving screw rod (41); the outer walls of the central sliding block (42) and the side sliding blocks (43) are respectively hinged with a transmission component, and the transmission components are hinged with the bottom ends of the supporting rods (51); one end of the driving screw rod (41) extends out of the protective cover (11) and is connected with a driving motor (44) in a transmission mode, and the driving motor (44) is installed on the bearing bottom plate (1).
6. The adjustable tunnel section supporting mechanism for subway construction as claimed in claim 5, wherein: the transmission assembly comprises a center sliding block (42) and an articulated seat (45) on the outer wall of a side sliding block (43), the articulated seat (45) is articulated with a transmission rod (46), and the top end of the transmission rod (46) is articulated with the bottom end of a supporting rod (51).
7. The adjustable tunnel section supporting mechanism for subway construction as claimed in claim 6, wherein: the side sliding block (43) comprises a center sleeve (47) which is in threaded connection with the driving screw rod (41), a positioning block (48) is rotatably connected to the outer side of the center sleeve (47), and the hinge base (45) is fixedly connected to the outer wall of the positioning block (48).
8. The adjustable tunnel section supporting mechanism for subway construction as claimed in claim 1, wherein: running gear (2) include a plurality of fixed mounting and be in the walking pneumatic cylinder (21) of bearing bottom plate (1) bottom, the output of walking pneumatic cylinder (21) is connected with mounting panel (22) to the lower and rotation, walking wheel (23) are installed to the bottom of mounting panel (22), walking wheel (23) correspond the setting with track (6), the homonymy walking wheel (23) with one side top rolling contact of track (6).
9. The adjustable tunnel section supporting mechanism for subway construction as claimed in claim 1, wherein: the fixing mechanism (3) comprises a plurality of supporting legs (31) fixedly connected to the bottom end of the bearing bottom plate (1), and the supporting legs (31) are located on the outer side of the track (6) and detachably connected with the ground; the supporting legs (31) are internally provided with fixing components which are detachably connected with the tunnel ground.
10. The adjustable tunnel section supporting mechanism for subway construction as claimed in claim 9, wherein: the fixing assembly comprises a fixing hole (32) formed in the supporting leg (31), and the fixing hole (32) penetrates through the bottom end of the supporting leg (31); the fixed hole (32) is connected to a lifting plate (33) in a sliding mode, a fixed motor (34) is installed at the top end of the lifting plate (33), the output end of the fixed motor (34) penetrates through the lifting plate (33) downwards and is connected with a rotating plate (35) in a transmission mode, and the outer wall of the rotating plate (35) is in threaded connection with the inner wall of the fixed hole (32); the bottom of rotating plate (35) is fixedly connected with a fixing rod (36), fixing rod (36) is inserted into the ground of the tunnel, and the outer wall of fixing rod (36) is fixedly connected with a helical blade (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211444050.XA CN115929366A (en) | 2022-11-18 | 2022-11-18 | Adjustable tunnel section supporting mechanism for subway construction |
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| CN202211444050.XA CN115929366A (en) | 2022-11-18 | 2022-11-18 | Adjustable tunnel section supporting mechanism for subway construction |
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| CN202211444050.XA Pending CN115929366A (en) | 2022-11-18 | 2022-11-18 | Adjustable tunnel section supporting mechanism for subway construction |
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