CN210460694U - Special trolley for rapid transition of tunnel widening section - Google Patents
Special trolley for rapid transition of tunnel widening section Download PDFInfo
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- CN210460694U CN210460694U CN201921259911.0U CN201921259911U CN210460694U CN 210460694 U CN210460694 U CN 210460694U CN 201921259911 U CN201921259911 U CN 201921259911U CN 210460694 U CN210460694 U CN 210460694U
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Abstract
A special trolley for rapid transition of a tunnel widening section relates to the field of civil engineering construction equipment. The problem that the difference between the inner contour space size of an existing emergency parking area and the whole section size of a tunnel is large, and the secondary lining trolley cannot be directly integrally cast at the position of the emergency parking area by using a traditional process is solved. The supporting mechanism is hinged with the inner surface of the shell through a plurality of screw rods, and a driving mechanism is arranged at the bottom end of the supporting mechanism; one end of the top template is hinged with one end of the first side template, and the other end of the top template is hinged with one end of the second side template; the supporting mechanism adopts two ends of a cross beam to be respectively provided with a longitudinal supporting arm, the bottom end of the longitudinal supporting arm is connected with one end of a heightening box, the other end of the heightening box is connected with a driving mechanism, the center of the outer side of the longitudinal supporting arm is provided with a widening frame, the upper surface of the cross beam is uniformly provided with two oil cylinders, and the output ends of the two oil cylinders are fixedly connected with a top template. The utility model is suitable for a construction in tunnel.
Description
Technical Field
The utility model relates to a civil engineering construction equipment field, concretely relates to tunnel widening section special platform truck that transitions fast.
Background
The section tunnels in China are provided with emergency stop belts (widened sections) with left and right lines accounting for twelve sections, and each section is fifty meters long. An emergency parking zone is arranged every seven hundred fifty meters on the right side of the driving direction of the tunnel, the emergency parking zone is four meters in width and fifty meters in length (including a 2.5X 5M transition section).
The emergency stop belts are arranged on the extra-long tunnels in the expressway in China from the safety perspective. Because the difference between the size of the inner contour space of the emergency parking area and the size of the whole section of the tunnel is large, the secondary lining trolley can not directly perform integral casting on the position of the emergency parking area, and therefore the traditional process is to newly process the trolley or modify the secondary lining trolley to solve the construction problem.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve present emergency stop in the area overall dimension and the whole section size difference in tunnel great, utilize traditional technology can't directly carry out the problem of integral casting to the parking area position to the secondary lining platform truck, and provide a tunnel widen section special platform truck that transitions fast.
The utility model relates to a special trolley for rapid transition of a tunnel widening section, which comprises a shell, a plurality of lead screws, a supporting mechanism and a driving mechanism;
the supporting mechanism is hinged with the inner surface of the shell through a plurality of screw rods, and a driving mechanism is arranged at the bottom end of the supporting mechanism;
the shell comprises a top template, a first side template and a second side template; one end of the top template is hinged with one end of the first side template, the other end of the top template is hinged with one end of the second side template, and the top template, the first side template and the second side template form a semi-cylinder shape with a cavity;
the supporting mechanism comprises a widening frame, a cross beam, an oil cylinder frame, a heightening box, a rib plate and a longitudinal supporting arm;
the two ends of the cross beam are respectively provided with a longitudinal support arm, the bottom end of the longitudinal support arm is connected with one end of the heightening box, the other end of the heightening box is connected with the driving mechanism, a rib plate is arranged between the inner side of the longitudinal support arm and the lower surface of the cross beam, a widening frame is arranged at the center of the outer side of the longitudinal support arm, the upper surface of the cross beam is uniformly provided with two oil cylinders, the two oil cylinders are symmetrically arranged, and the output ends of the two oil cylinders penetrate through the oil cylinder frame to be fixedly connected with.
Compared with the prior art, the utility model following beneficial effect has:
one, the utility model overcomes prior art's shortcoming adopts a lateral part template, No. two lateral part templates and top mould to utilize the articulated mode to connect, and the mode through hinge connection makes a lateral part template and No. two lateral part templates outwards open trend, and inside is equipped with the hydro-cylinder on the girder, can rise or descend the top template, realizes can enlarging or reducing the size of shell to accord with the whole section size in tunnel.
Secondly, the utility model discloses device convenient operation, construction method also easy to operate.
Drawings
Fig. 1 is a sectional view of the overall structure of the present invention;
fig. 2 is a cross-sectional view of the overall structure of the present invention;
fig. 3 is a sectional view of the overall structure of the present invention when the housing is enlarged in a use state;
fig. 4 is a cross-sectional view of the overall structure of the present invention in a use state;
fig. 5 is a sectional view showing the overall structure of the present invention when the housing is reduced in a use state;
FIG. 6 is a schematic diagram of the present invention showing the adjustment of the size of the housing in use;
fig. 7 is a front view of the overall structure of the present invention;
fig. 8 is a schematic diagram of the movement locus of the present invention during operation.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 8, and the trolley special for rapid transition of a tunnel widening section in the embodiment comprises a shell, a plurality of screw rods 7, a supporting mechanism and a driving mechanism 11;
the supporting mechanism is hinged with the inner surface of the shell through a plurality of screw rods 7, and a driving mechanism 11 is arranged at the bottom end of the supporting mechanism;
the shell comprises a top template 5, a first side template 8 and a second side template 14; one end of the top template 5 is hinged with one end of the first side template 8, the other end of the top template 5 is hinged with one end of the second side template 14, and the top template 5, the first side template 8 and the second side template 14 form a semi-cylinder shape with a cavity;
the supporting mechanism comprises a widening frame 1, a cross beam 2, an oil cylinder 3, an oil cylinder frame 4, a heightening box 9, a rib plate 10 and a longitudinal supporting arm 12;
two ends of the beam 2 are respectively provided with a longitudinal support arm 12, the bottom end of the longitudinal support arm 12 is connected with one end of the heightening box 9, the other end of the heightening box 9 is connected with the driving mechanism 11, a rib plate 10 is arranged between the inner side of the longitudinal support arm 12 and the lower surface of the beam 2, the center of the outer side of the longitudinal support arm 12 is provided with the widening frame 1, the upper surface of the beam 2 is uniformly provided with two oil cylinders 3, the two oil cylinders 3 are symmetrically arranged, and the output ends of the two oil cylinders 3 penetrate through the oil cylinder frame 4 to be fixedly connected with the lower surface of the;
when the tunnel is to be built with a low height and a narrow width, the widening frame 1 can be disassembled, the lead screw 7 between the widening frame 1 and the second side template 14 can be disassembled, the lead screw 7 between the widening frame 1 and the first side template 8 can be disassembled, then the two oil cylinders are adjusted to lower the top template 5, and the semi-cylindrical shell with the cavity formed by hinging the first side template 8, the second side template 14 and the top template 5 is reduced, so that the tunnel is suitable for the construction environment of the tunnel, pouring is carried out, and the tunnel is built.
The second embodiment is as follows: the present embodiment is described with reference to fig. 2, and is a further limitation to the trolley described in the first embodiment, and the driving mechanism 11 of the trolley described in the present embodiment includes a motor and a driving wheel, an output end of the motor is connected to a large belt wheel, the large belt wheel is connected to a small belt wheel through a belt, and the small belt wheel is coaxially connected to the driving wheel.
The third concrete implementation mode: the present embodiment is described with reference to fig. 2, and the present embodiment is a further limitation of the trolley described in the second embodiment, and the driving wheel of the trolley for rapid transition in a tunnel widening section described in the present embodiment is provided with a groove along an outer circumferential surface.
The fourth concrete implementation mode: the present embodiment will be described with reference to fig. 2, which is a further limitation of the carriage according to the first embodiment, and the diameter of the screw 7 is 20mm to 30mm in the carriage for rapid transition in a tunnel widening section according to the present embodiment.
The fifth concrete implementation mode: the present embodiment will be described with reference to fig. 2, which is a further limitation of the carriage according to the fourth embodiment, and the carriage for rapid transition in a tunnel widening section according to the present embodiment has a diameter of 25mm of the screw 7.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 2, and is further limited to the trolley according to the first embodiment, and the thickness of the top form 5, the first side form 8, and the second side form 14 is the same in the trolley according to the first embodiment for rapid transition to a tunnel widening section.
The seventh embodiment: the present embodiment will be described with reference to fig. 2, which is a further limitation of the cart according to the sixth embodiment, and the thickness of the roof form 5 is 1.5 to 3m in the cart for rapid transition in a tunnel widening section according to the present embodiment.
Principle of operation
In use, an operator operates the following steps:
step one, dismantling a lower template and widening a frame: the perimeter of the widening section is larger than that of the standard section, the retractable section behind the lower template needs to be removed, and the removing method comprises the steps of firstly using a filament rod to jack the lower template, then removing the hydraulic jack and the widening frame, and finally removing the lower template; step two, dismantling the gantry heightening box: preparing safety protection measures, lowering an oil cylinder, firmly installing four groups of mechanical jacks and tightly jacking, loosening all bolts of a heightening box, synchronously jacking the jacks, removing the heightening box, penetrating a long-screw rod safety positioning bolt into a bolt hole, fastening the long-screw rod safety positioning bolt while synchronously descending the jacks, removing the jacks and safety protection equipment after the trolley is lowered in place, and replacing working bolts on the bolt holes one by one; step three, continuing to lower the main jacking oil cylinder to 0 stroke, so that the overall height of the trolley is lower than the contour line of the main hole; step four, replacing the edge supporting screw rod, and shrinking the whole set of template within the standard section: the contraction sequence is that firstly, the long lead screw is contracted, the short lead screw is installed, the long lead screw is dismantled, then the short lead screw is contracted, and finally the whole template is in the standard section; step five, moving the axis of the trolley from the central line of the emergency parking belt to the central line of the tunnel: in the widening section, the transverse movement is realized in an angle longitudinal movement mode, the central line of the trolley is moved to the central line of a standard section from the central line of the widening section between an advance and a retreat, and the deflection angle and the longitudinal movement length are determined by calculation according to the distance between the limit structure of the travelling wheels and the edge of the track and the longitudinal distance between the travelling wheels; step six, the trolley passes through the tunnel to a turning area outside the tunnel opening: the trolley is automatically moved, the rail is transferred and transported manually for assistance, the moving distance is about 800 meters every day until the trolley is moved to a turning area, the gradient required by the turning area is within 0.5%, the hole is arranged and the trolley moves transversely; step seven, the longitudinal walking is converted into the transverse walking in the turning area: installing safety measures, synchronously jacking the trolley by a mechanical jack, converting a longitudinal walking system into a transverse walking system by using a steering box, installing a transverse walking track, returning the mechanical jack, dropping the trolley on the transverse walking track, removing the jack and a safety device, and transversely moving; step eight, transversely walking to another hole turning area, and changing the walking mode into a longitudinal walking mode according to the steps; and step nine, performing reverse operation after the widening section, and starting second lining construction.
Claims (7)
1. The utility model provides a special platform truck of quick transition of tunnel widening section which characterized in that: comprises a shell, a plurality of screw rods (7), a supporting mechanism and a driving mechanism (11);
the supporting mechanism is hinged with the inner surface of the shell through a plurality of screw rods (7), and a driving mechanism (11) is arranged at the bottom end of the supporting mechanism;
the shell comprises a top template (5), a first side template (8) and a second side template (14); one end of the top template (5) is hinged with one end of the first side template (8), the other end of the top template (5) is hinged with one end of the second side template (14), and the top template (5), the first side template (8) and the second side template (14) form a semi-cylinder shape with a cavity;
the supporting mechanism comprises a widening frame (1), a cross beam (2), an oil cylinder (3), an oil cylinder frame (4), a heightening box (9), a rib plate (10) and a longitudinal supporting arm (12);
the both ends of crossbeam (2) are equipped with a vertical support arm (12) respectively, the bottom of vertical support arm (12) is connected with the one end of increasing box (9), the other end of increasing box (9) is connected with actuating mechanism (11), be equipped with gusset (10) between the inboard of vertical support arm (12) and the lower surface of crossbeam (2), the outside center department of vertical support arm (12) is equipped with and widens frame (1), the upper surface of crossbeam (2) is even is equipped with two hydro-cylinders (3), and two hydro-cylinders (3) symmetry set up, the output of two hydro-cylinders (3) passes hydro-cylinder frame (4) and top template (5) lower fixed surface and is connected.
2. The special trolley for rapid transition of the widened section of the tunnel according to claim 1, wherein: the driving mechanism (11) comprises a motor and a driving wheel, the output end of the motor is connected with a large belt wheel, the large belt wheel is connected with a small belt wheel through a belt, and the small belt wheel is coaxially connected with the driving wheel.
3. The special trolley for rapid transition of the tunnel widening section according to claim 2, is characterized in that: the driving wheel is provided with a groove along the surface of the excircle.
4. The special trolley for rapid transition of the widened section of the tunnel according to claim 1, wherein: the diameter of the screw rod (7) is 20-30 mm.
5. The special trolley for rapid transition of the tunnel widening section as claimed in claim 4, wherein: the diameter of the screw rod (7) is 25 mm.
6. The special trolley for rapid transition of the widened section of the tunnel according to claim 1, wherein: the top template (5), the first side template (8) and the second side template (14) are the same in thickness.
7. The special trolley for rapid transition of the tunnel widening section according to claim 6, is characterized in that: the thickness of the top template (5) is 1.5-3 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921259911.0U CN210460694U (en) | 2019-08-05 | 2019-08-05 | Special trolley for rapid transition of tunnel widening section |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921259911.0U CN210460694U (en) | 2019-08-05 | 2019-08-05 | Special trolley for rapid transition of tunnel widening section |
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| CN210460694U true CN210460694U (en) | 2020-05-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259482A (en) * | 2019-08-05 | 2019-09-20 | 黑龙江省水利水电集团有限公司 | A kind of quick transition dedicated trolley of tunnel widened section and construction method |
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2019
- 2019-08-05 CN CN201921259911.0U patent/CN210460694U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259482A (en) * | 2019-08-05 | 2019-09-20 | 黑龙江省水利水电集团有限公司 | A kind of quick transition dedicated trolley of tunnel widened section and construction method |
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