CN217841677U - Side ditch construction trolley for variable cross-section tunnel - Google Patents
Side ditch construction trolley for variable cross-section tunnel Download PDFInfo
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- CN217841677U CN217841677U CN202222204424.2U CN202222204424U CN217841677U CN 217841677 U CN217841677 U CN 217841677U CN 202222204424 U CN202222204424 U CN 202222204424U CN 217841677 U CN217841677 U CN 217841677U
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Abstract
The utility model discloses a side ditch construction trolley for a variable cross-section tunnel, which comprises a trolley framework and side ditch moulds positioned at the two sides of the trolley framework, wherein the side ditch moulds are provided with a side mould plate and at least one side ditch mould core, and the side ditch moulds are connected with the trolley framework through a mould frame; a plurality of steel beams which are horizontally arranged are longitudinally distributed on two sides of the trolley framework on the trolley, and the steel beams form two rows of upper and lower layers, so that the cross section of the trolley framework forms an open shape; the die carrier includes many tubular beams, and every tubular beam slides and cup joints on the girder steel that corresponds. The beneficial effects of the utility model are that, utilize the girder steel of the horizontal extension in both sides to set up the die carrier of slot mould, form the double-deck guide rail substructure of upper and lower floor, improve structural rigidity and stability to can satisfy the jumbo size regulation demand in variable cross section tunnel. The variable cross-section tunnel boring machine is simple in structure, good in overall rigidity and suitable for requirements on center distance change of grooves on two sides of a variable cross-section tunnel. Still satisfy the slot quality requirement through a plurality of adjusting cylinder.
Description
Technical Field
The utility model relates to a tunnel construction equipment, especially a side ditch construction trolley for variable cross section tunnel.
Background
The variable cross-section tunnel is a tunnel with the size of the cross section varying along the depth of the tunnel. The tunnel is designed specially based on geological condition difference in a multi-line tunnel, a parallel-line combined repair tunnel and the like of a mountain railway, or an ultra-long tunnel, such as the section of a hard rock section is reduced properly. After the second lining construction of the existing tunnel construction is finished, drainage ditch cable grooves are required to be poured on two sides of the bottom of the tunnel, the construction content is usually finished through a side ditch construction trolley, and the method comprises the step of arranging a mold planting and drawing mechanism on the trolley to complete the planting and drawing of a side ditch mold. To ensure the lateral position of the gutter and the lateral level of the bottom, a lateral adjustment mechanism is typically provided. However, the existing trolley has a limited range of adjusting the transverse position and cannot be suitable for adjusting the transverse large size of the tunnel with the variable cross section. Accordingly, there is a need for improvements to existing dollies.
Disclosure of Invention
The utility model aims at providing a transversely adjust the size to current tunnel gutter construction platform truck and be difficult to satisfy the not enough of jumbo size regulation requirement in variable cross section tunnel, a gutter construction platform truck for the variable cross section tunnel is provided, this platform truck is through setting the platform truck skeleton to "open" font, the girder steel that utilizes the horizontal level in both sides to extend sets up the die carrier of slot mould, form the double-deck guide rail auxiliary structure of upper and lower floor, structural rigidity and stability are improved, in order to obtain the regulation of transverse dimension through the die carrier removal, thereby satisfy the jumbo size regulation demand in variable cross section tunnel.
In order to achieve the above purpose, the present invention adopts the following technical solution.
A side ditch construction trolley for a variable cross-section tunnel comprises a trolley framework and side ditch molds positioned on two sides of the trolley framework, wherein each side ditch mold is provided with a side template and at least one side ditch mold core, and the side ditch molds are connected with the trolley framework through mold bases; a plurality of steel beams which are horizontally arranged are longitudinally distributed on two sides of the trolley framework on the trolley, and the steel beams form two rows of upper and lower layers, so that the cross section of the trolley framework forms an open shape; the die carrier includes many tubular beams, every tubular beam slip cup joint in correspond on the girder steel.
According to the trolley adopting the technical scheme, the trolley framework is arranged to be in an open shape, the steel beams transversely and horizontally extending on two sides are utilized to arrange the mould frame of the groove mould, the double-layer guide rail pair structure of the upper layer and the lower layer is formed, the structural rigidity and the stability are improved, the adjustment of the transverse size is obtained through the movement of the mould frame, and therefore the large-size adjustment requirement of the variable cross-section tunnel is met. The variable cross-section tunnel has the advantages of simple structure and good integral rigidity, and is suitable for the requirement of the center distance change of the grooves on the two sides of the variable cross-section tunnel. During actual application, the trolley framework can be designed according to the width requirement of the maximum section, the adjustment quantity meets the difference range of the maximum section and the minimum section, and construction is best carried out according to the direction from the large section to the small section. In the extreme case, the condition of adjusting to the construction of the tunnel with the minimum section can be met by cutting short steel beams.
Preferably, a mold base adjusting oil cylinder is arranged between the mold base and the trolley framework. The mechanical adjustment is implemented through the adjusting oil cylinders, and a plurality of die carrier adjusting oil cylinders are arranged along the longitudinal direction of the trolley and are connected with oil ways according to the synchronous telescopic requirement. Preferably, the die carrier adjusting oil cylinder is arranged between the lower layer of the pipe beam and the trolley framework.
Further preferably, the die carrier adjusting oil cylinder is obliquely arranged, and the connecting end of the die carrier adjusting oil cylinder and the steel beam is lower than the connecting end of the die carrier adjusting oil cylinder and the trolley framework. So as to utilize the vertical component to form locking force for locking the die carrier. Of course, a locking oil cylinder can be arranged on the tubular beam and used for locking the relative position of the tubular beam and the steel beam after the width is adjusted in place, so that the stability of the adjusting effect is ensured.
Preferably, the gutter mould further comprises a mould hanging frame, at least two mould planting and drawing cylinders are hinged to the mould hanging frame in the longitudinal direction and the transverse direction, and the mould planting and drawing cylinders are connected with the corresponding side templates and the gutter mould core. The length and the width of the mould hanging frame respectively correspond to the longitudinal direction and the transverse direction of the trolley, and a plurality of mould planting and drawing oil cylinders on the same longitudinal straight line correspond to the mould cores of the same side ditch; the gutter core is generally composed of three, corresponding to the side gutter, the power cable groove and the communication cable groove, respectively. The three side ditch die cores can adopt a split structure or an integral structure formed by the three die cores, and when the integral structure is adopted, the three side ditch die cores can be driven by two or three die planting and drawing oil cylinders which act synchronously in the transverse direction; when the split structure is adopted, a plurality of die planting and drawing oil cylinders which are transversely arranged correspond to different side ditch die cores.
Preferably, the inner end of the mold hanging frame is fixedly connected with a height positioning component, the height positioning component extends downwards, and a side mold auxiliary oil cylinder is arranged between the height positioning component and the side mold plate. Limiting the terminal height of the lowered mold core by a height positioning component so as to enable the two sections of groove bottom surfaces formed by twice pouring to be located on the same plane as much as possible and achieve the requirement of the difference of the groove bottom surfaces; the side die auxiliary oil cylinder is used for ensuring the stability of the side die plate, so that the thickness of the side die plate can be reduced, the weight is reduced, and the cost is saved.
Preferably, the height positioning component is provided with a height adjusting oil cylinder, and the free end of the height adjusting oil cylinder is provided with a foot pad. The requirement for the positioning height of the bottom surface of the groove is met by adjusting the height of the foot pad when the depression on the bottom surface of the tunnel is uneven.
Preferably, the mold hanging frame is connected with the mold frame through a plurality of mold lifting oil cylinders longitudinally distributed along the trolley, and a lifting guide structure for lifting the mold is further formed between the mold hanging frame and the mold frame. The groove die is lifted by the die lifting cylinders together, and the longitudinal level of the groove die can be adjusted by the die lifting cylinders to meet the requirement of the drainage gradient at the bottom of the groove.
Preferably, the lifting guide structure is formed by matching a guide column and a guide pipe, the guide column is connected with the mould hanging frame, the guide pipe is fixedly connected with the tubular beam, and the guide pipe forms a part of the mould frame. So that the lifting process of the die is kept stable through the lifting guide structure, and the safety and the reliability of the lifting motion are ensured.
Still further preferably, two guide posts are arranged along the transverse direction of the trolley, one of the two guide posts is hinged with the mould hanging frame, and the other guide post is hinged with the mould hanging frame through a transverse horizontal adjusting oil cylinder. The transverse horizontal adjusting oil cylinder is used for adjusting the transverse levelness of the mould hanging frame, so that the transverse level of the bottom plane of the groove bottom and the transverse height difference of adjacent grooves can be guaranteed, and the pouring quality of the grooves is guaranteed.
The beneficial effects of the utility model are that, through setting the platform truck skeleton to "open" font, the girder steel that utilizes the horizontal level of both sides to extend sets up the die carrier of slot mould, forms the double-deck guide rail substructure of upper and lower floor, improves structural rigidity and stability to remove the regulation that obtains horizontal size through the die carrier, thereby satisfy the jumbo size regulation demand in variable cross section tunnel. The variable cross-section tunnel boring machine is simple in structure, good in overall rigidity and suitable for requirements on center distance change of grooves on two sides of a variable cross-section tunnel. Simultaneously, still satisfy the slot quality requirement through a plurality of adjusting oil jar.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the medium mold frame of the present invention.
Fig. 3 is a schematic structural view of the middle trolley frame of the present invention.
Fig. 4 is a schematic structural view of the middle groove mold of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited thereto.
Referring to fig. 1, 2, 3 and 4, the side ditch construction trolley for the variable cross-section tunnel comprises a trolley framework 1 and side ditch molds 2 positioned on two sides of the trolley framework 1, wherein the side ditch molds 2 are provided with a side template 21 and at least one side ditch mold core 22, and the side ditch molds 2 are connected with the trolley framework 1 through mold bases 3; a plurality of steel beams 1a which are horizontally arranged are longitudinally distributed on the two sides of the trolley framework 1 on the trolley, and the steel beams 1a form two rows of upper and lower layers, so that the cross section of the trolley framework 1 forms an open shape; the formwork 3 comprises a plurality of tubular beams 31, and each tubular beam 31 is sleeved on the corresponding steel beam 1a in a sliding manner.
A mould frame adjusting oil cylinder 4 is arranged between the mould frame 3 and the trolley framework 1, and the mould frame adjusting oil cylinder 4 is obliquely arranged and is arranged between the lower layer of tubular beam 31 and the trolley framework 1; the connecting end of the die carrier adjusting oil cylinder 4 and the steel beam 1a is lower than the connecting end of the die carrier adjusting oil cylinder and the trolley framework 1.
The side ditch mould 2 further comprises a mould hanging frame 5, at least two mould planting and drawing oil cylinders 6 are hinged to the longitudinal direction and the transverse direction of the mould hanging frame 5, and the mould planting and drawing oil cylinders 6 are connected with corresponding side templates 21 and side ditch mould cores 22. The length and the width of the mould hanging frame respectively correspond to the longitudinal direction and the transverse direction of the trolley, and a plurality of mould planting and drawing oil cylinders 6 on the same longitudinal straight line correspond to the same side ditch mould core 22; the gutter core 22 is typically formed of three, corresponding to the side gutter, the power cable trough and the communication cable trough, respectively. The three side ditch mold cores 22 adopt split structures, and a plurality of mold planting and drawing oil cylinders 6 which are transversely arranged correspond to different side ditch mold cores 22.
In addition, the inner end of the mould hanging frame 5 is fixedly connected with a height positioning component 7, the height positioning component 7 extends downwards, and a side mould auxiliary oil cylinder 8 is arranged between the height positioning component 7 and the side mould plate 21. The height positioning component 7 is provided with a height adjusting oil cylinder 9, and the free end of the height adjusting oil cylinder 9 is provided with a foot pad 9a. The height positioning component 7 adopts a tubular structure, most of the height adjusting oil cylinder 9 is hidden in a pipe hole of the height positioning component 7, and the foot pad 9a is positioned below the height positioning component 7.
The mould lifting frame 5 is connected with the mould frame 3 through a plurality of mould lifting oil cylinders 10 distributed longitudinally along the trolley, and a lifting guide structure for lifting the mould is formed between the mould lifting frame 5 and the mould frame 3. The lifting guide structure is formed by matching a guide post 51 and a guide pipe 32, the guide post 51 is connected with the mould hanging frame 5, the guide pipe 32 is fixedly connected with the pipe beam 31, and the guide pipe 32 forms a part of the mould frame 3.
Two guide posts 51 are arranged along the transverse direction of the trolley, one of the two guide posts is hinged with the mould hanging frame 5, and the other guide post is hinged with the mould hanging frame 5 through a transverse horizontal adjusting oil cylinder 11. The guide post 51 connected with the transverse horizontal adjusting oil cylinder 11 adopts a tubular structure, and most of the transverse horizontal adjusting oil cylinder 11 is hidden in a pipe hole of the guide post 51.
In this embodiment, a locking cylinder may be further provided on the tubular beam for locking the relative position of the tubular beam and the steel beam 1a after the width is adjusted in place.
In this embodiment, the three gutter mold cores 22 may also be an integrated structure, and may be driven by two or three mold-setting and drawing cylinders 6 acting synchronously in the transverse direction.
In practical application, the trolley framework can be designed according to the width requirement of the maximum section, the adjustment quantity meets the difference range of the maximum section and the minimum section, and construction is best carried out according to the direction from large to small of the section. So that the condition of adjusting to the construction of the tunnel with the minimum section can be met by cutting the steel beam in an extreme case.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A side ditch construction trolley for a variable cross-section tunnel comprises a trolley framework (1) and side ditch molds (2) positioned on two sides of the trolley framework (1), wherein the side ditch molds (2) are provided with a side template (21) and at least one side ditch mold core (22), and the side ditch molds (2) are connected with the trolley framework (1) through a mold base (3); the trolley is characterized in that a plurality of steel beams (1 a) which are horizontally arranged are longitudinally distributed on two sides of the trolley framework (1) on the trolley, and the steel beams (1 a) form two rows of an upper layer and a lower layer, so that the cross section of the trolley framework (1) forms an open shape; the formwork (3) comprises a plurality of tubular beams (31), and each tubular beam (31) is sleeved on the corresponding steel beam (1 a) in a sliding mode.
2. The gutter construction trolley for the variable cross-section tunnel according to claim 1, characterized in that a trolley frame adjusting cylinder (4) is arranged between the trolley frame (1) and the trolley frame (3).
3. The side ditch construction trolley for the variable cross-section tunnel according to claim 2, wherein the formwork adjusting cylinder (4) is arranged obliquely, and the connecting end of the formwork adjusting cylinder (4) and the steel beam (1 a) is lower than the connecting end of the formwork adjusting cylinder and the trolley framework (1).
4. The gutter construction trolley for the variable cross-section tunnel according to any one of claims 1 to 3, wherein the gutter mold (2) further comprises a mold hanging frame (5), at least two mold implanting and drawing cylinders (6) are hinged to the mold hanging frame (5) in the longitudinal direction and the transverse direction respectively, and the mold implanting and drawing cylinders (6) are connected with corresponding side mold plates (21) and gutter mold cores (22).
5. The gutter construction trolley for the variable cross-section tunnel according to claim 4, wherein a height positioning member (7) is fixedly connected to the inner end of the mold hanging frame (5), the height positioning member (7) extends downwards, and a side mold auxiliary oil cylinder (8) is arranged between the height positioning member (7) and the side mold plate (21).
6. The gutter construction trolley for the variable cross-section tunnel according to claim 5, wherein the height positioning member (7) is provided with a height adjusting cylinder (9), and the free end of the height adjusting cylinder (9) is provided with a foot pad (9 a).
7. The gutter construction trolley for the variable cross-section tunnel according to claim 4, wherein the mould lifting frame (5) is connected with the mould frame (3) through a plurality of mould lifting oil cylinders (10) distributed along the longitudinal direction of the trolley, and a lifting guide structure for lifting the mould is further formed between the mould lifting frame (5) and the mould frame (3).
8. The gutter construction trolley for the variable cross-section tunnel according to claim 7, wherein the lifting guide structure is formed by matching a guide post (51) and a guide pipe (32), the guide post (51) is connected with the mould hanging frame (5), the guide pipe (32) is fixedly connected with the pipe beam (31), and the guide pipe (32) forms a part of the mould frame (3).
9. The gutter construction trolley for the variable cross-section tunnel according to claim 8, wherein two guide posts (51) are arranged in the transverse direction of the trolley, one of the two guide posts is hinged with the mould hanging frame (5), and the other guide post is hinged with the mould hanging frame (5) through a transverse horizontal adjusting oil cylinder (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222204424.2U CN217841677U (en) | 2022-08-22 | 2022-08-22 | Side ditch construction trolley for variable cross-section tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222204424.2U CN217841677U (en) | 2022-08-22 | 2022-08-22 | Side ditch construction trolley for variable cross-section tunnel |
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| Publication Number | Publication Date |
|---|---|
| CN217841677U true CN217841677U (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222204424.2U Active CN217841677U (en) | 2022-08-22 | 2022-08-22 | Side ditch construction trolley for variable cross-section tunnel |
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| CN (1) | CN217841677U (en) |
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- 2022-08-22 CN CN202222204424.2U patent/CN217841677U/en active Active
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