CN214787431U

CN214787431U - Two lining platform trucks of variable section

Info

Publication number: CN214787431U
Application number: CN202121339713.2U
Authority: CN
Inventors: 张昂然; 吴文俊; 舒金会; 曹梦洁; 李鹏程; 张国柱; 李树忱; 冯现大; 袁超; 王凯平; 卢彬
Original assignee: Shandong University; University of Jinan; Third Engineering Co Ltd of China Railway 14th Bureau Co Ltd
Current assignee: Shandong University; University of Jinan; Third Engineering Co Ltd of China Railway 14th Bureau Co Ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2021-11-19
Anticipated expiration: 2031-06-16

Abstract

The utility model relates to a two lining platform trucks of variable section, including the automobile body and splice each other and laminate a plurality of templates at tunnel inner wall, the automobile body includes a plurality of axis horizontally crossbeams, every crossbeam includes that inner beam and cover establish two outside sliding sleeves of inner beam, the crossbeam forms sliding sleeve assembly with the sliding sleeve of one side, a truss of every sliding sleeve assembly lower part fixation, distance between two trusses can be adjusted, with the width that changes crossbeam and automobile body, the rack roof beam that quantity can be adjusted is installed to the crossbeam top, with change the automobile body height, install the bracing piece between template and the automobile body, the bracing piece can realize the support of template. The utility model discloses be convenient for realize two size modulation of lining platform truck.

Description

Two lining platform trucks of variable section

Technical Field

The utility model belongs to the technical field of tunnel construction equipment, concretely relates to two lining platform trucks of variable section.

Background

The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.

The lining trolley is special equipment in secondary lining of tunnel construction, is used for concrete lining construction of the inner wall of a tunnel, plays an irreplaceable role in the construction of secondary lining of the tunnel, and common tunnel secondary lining construction trolleys comprise a simple lining trolley, a full-hydraulic automatic walking lining trolley, a net frame type lining trolley and the like.

The inventor knows that although the kind of current tunnel two lining platform truck is various, because the particularity of tunnel construction environment, some circumstances that widen increase the section can appear, and the structure of common lining platform truck is complicated, builds loaded down with trivial details, and area is big. Once the tunnel section needs to be widened and enlarged, the problems of difficult adjustment, long adjustment time and the like can occur when the original trolley changes the section, the tunnel construction efficiency is influenced, the construction time is increased, and the engineering cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a two lining platform trucks of variable section can solve one of above-mentioned technical problem at least.

In order to achieve the above object, one or more embodiments of the present invention provide a variable-section two-lining trolley, which includes a trolley body, wherein the trolley body includes a plurality of horizontal beams, each beam includes an inner beam and two sliding sleeves sleeved outside the inner beam, the sliding sleeves on the same side of the beam form a sliding sleeve assembly, a truss is fixed on the lower portion of each sliding sleeve assembly, the distance between the two trusses can be adjusted, and the length of the beam can be adjusted to change the width of the trolley body; the number of adjustable rack beams are arranged above the cross beam to change the height of the vehicle body.

As a further improvement, a first travelling mechanism for driving the truss to move along the axial direction of the tunnel and a second travelling mechanism for driving the truss to move along the transverse direction of the tunnel are arranged at the lower part of the truss. The first travelling mechanism can move vertically relative to the truss, so that the first travelling mechanism and the second travelling mechanism are alternately contacted with the bottom surface of the tunnel.

As a further improvement, a plurality of beam lengthening blocks are detachably spliced at two ends of the inner beam respectively, and the number of the beam lengthening blocks is adapted to the length of the beam.

As a further improvement, the rack beam comprises a first beam body and a second beam body which are respectively fixed with the two sliding sleeves, and the end parts of the first beam body and the second beam body are detachably connected. The extension rods can be spliced or reduced between the first beam body and the second beam body, so that the length of the rack beam is matched with that of the cross beam.

The beneficial effects of one or more of the above technical solutions are as follows:

in the utility model, the width of the vehicle body can be changed by adjusting the length of the cross beam, and the width of the vehicle body can be changed without disassembling and replacing the cross beam and the truss; different numbers of the rack beams are arranged above the cross beam, so that the height of the vehicle body can be conveniently changed. Namely, the utility model discloses in change automobile body width and the mode of height, need not dismantle a large amount of components.

The first traveling mechanism and the second traveling mechanism are adopted to act in a matched mode, so that the transverse traveling and the longitudinal traveling of the tunnel can be realized, and the truss in the trolley can be conveniently translated and the trolley can integrally move to the next tunnel section; the first travelling mechanism and the second travelling mechanism are alternately contacted with the bottom surface of the tunnel, so that the transverse travelling and the longitudinal travelling of the truss along the tunnel are not influenced by each other.

The length of the inner beam is changed by adopting a mode of detachably splicing the beam lengthening blocks at the two ends of the inner beam, so that the sliding sleeve cannot slip from the inner beam when sliding along the inner beam.

Adopt the rack roof beam including respectively with the fixed first roof beam body and the second roof beam body of sliding sleeve for when the platform truck width changes, the rack roof beam can be followed the horizontal synchronous motion in tunnel, reduces the dismantlement of rack roof beam.

Adopt the mode that first roof beam body and second roof beam body can splice or reduce the extension bar for first roof beam body, second roof beam body and extension bar are constituteed a complete rack beam again, and the adaptation is adjusted in the width of platform truck.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Fig. 1 is a schematic view of the overall structure of an embodiment of the present invention at a first cross-sectional dimension;

fig. 2 is a schematic view of the embodiment of the present invention showing the expansion of the form at a first cross-sectional dimension;

fig. 3 is a schematic view of the overall structure of the embodiment of the present invention at the second cross-sectional size;

fig. 4 is a schematic diagram of the expansion of the template in the second cross-sectional dimension according to the embodiment of the present invention.

In the figure, 1, a first travel mechanism; 2. a second traveling mechanism; 3. connecting the longitudinal beams; 4. lifting the oil cylinder; 6. a truss; 7. a fixed seat; 8. a translation oil cylinder; 9. a sliding sleeve; 10. a beam lengthening block; 11. a first upright post; 12. a second upright post; 13. a second gantry beam; 14. a first gantry beam; 15. a top support bar; 16. a vault column; 17. a fourth top template; 18. a vault oil cylinder; 19. a third top template; 20. a support rod hinged support; 22. a second top template; 23. a first top mold plate; 24. a side support bar; 25. a lateral oil cylinder; 26. a sideform; 27. an inner cross beam; 28. a reinforcing bar; 29. lengthening a rod; 30. a third gantry beam; 31. and (4) a top die lengthening plate.

Detailed Description

As described in the background art, when a common two-lining trolley is adapted to tunnels with different section sizes, a large number of rod pieces need to be disassembled and replaced, so that the adjustment is difficult, and the efficiency and the quality of construction are affected.

Fig. 1 and 2 show schematic structural views of a two-lining trolley with a first cross-sectional dimension and a second cross-sectional dimension, wherein the first cross-sectional dimension is the minimum cross-sectional dimension that the two-lining trolley can adapt to in the embodiment, and the second cross-sectional dimension is larger than the first cross-sectional dimension.

In the two lining platform trucks of variable cross section that this embodiment provided, including the automobile body, a plurality of bracing pieces can be installed to the outside of automobile body, the one end and the connection of bracing piece, the template that the other end and tunnel inner wall department were connected, the quantity of template is a plurality of, and a plurality of templates splice each other and the laminating is in the inner wall department in tunnel.

In two lining platform trucks using a plurality of rods spliced into a truss 6 structure as a main body, when the tunnels with different section sizes need to be adapted, the width and height of the vehicle body need to be changed, otherwise, the distance between the main structure (truss 6, cross beam, rack and the like) of the platform truck and the inner wall of the tunnel is large, the length of the supporting rod is not enough, or the length value is too large, so that the situation of insufficient rigidity is caused, and the width and the height of the vehicle body need to be increased.

In order to achieve the purpose of changing the width and height of the vehicle body, in this embodiment, the vehicle body includes a vehicle body, the vehicle body includes a plurality of cross beams with horizontal axes, the cross beams include an inner cross beam 27 and two sliding sleeves 9 sleeved outside the inner cross beam 27, the sliding sleeves 9 positioned on the same side of the cross beams form sliding sleeve 9 assemblies, a truss 6 is fixed at the lower part of each sliding sleeve 9 assembly, the distance between the two trusses 6 can be adjusted, and the length of the cross beam can be adjusted to change the width of the vehicle body; the number of adjustable rack beams are arranged above the cross beam to change the height of the vehicle body.

In particular, the distance between the two girders 6 mentioned above can vary the width of the cross-beam and the bodywork. Because the cross beam comprises the inner cross beam 27 and the sliding sleeves 9, if the size of the cross beam is required to be changed through the relative sliding of the sliding sleeves 9, in one structural form, two ends of the inner sliding beam are always positioned in the two sliding sleeves 9, the length of the cross beam is represented by the distance between the two sliding sleeves 9 and the two ends, and the sliding sleeves 9 can slide along with the truss 6, so that the width of the cross beam can be synchronously adjusted. In another structure, two ends of the inner sliding beam penetrate out of the sliding sleeve 9, the length of the cross beam is represented by the length of the inner cross beam 27, the matching of the sliding sleeve 9 and the inner cross beam 27 facilitates the matching of the distance between the trusses 6 to the length of the cross beam, and the cross beam lengthening blocks 10 with set lengths are spliced at two ends of the inner cross beam 27, so that the length of the cross beam can be increased, and meanwhile, support is provided for the sliding of the sliding sleeve 9.

In this embodiment, the girders 6 are provided at the lower portion of the trolley as a support, so that the girders 6 have a need to drive the trolley as a whole to move in the longitudinal direction of the tunnel (i.e., the tunnel extending direction, the axial direction of the tunnel), and the distance between the two girders 6 needs to be adjusted. Thus, there is a need for lateral and longitudinal movement of the girders 6 along the tunnel.

In order to meet the requirements, a first travelling mechanism 1 for driving the truss 6 to move along the axial direction of the tunnel and a second travelling mechanism 2 for driving the truss 6 to move along the transverse direction of the tunnel are arranged at the lower part of the truss 6.

When the traveling mechanisms in different directions are provided below the truss 6, the traveling directions of the first traveling mechanism 1 and the second traveling mechanism 2 are determined, but there is a possibility that they may affect each other. For example, the second running gear 2 drives the truss 6 to move transversely along the tunnel, and the first running gear 1 is severely rubbed with the ground or influenced by the bulge on the bottom surface of the tunnel, so that the truss 6 is prevented from moving transversely along the tunnel.

In order to solve the above problem, in the present embodiment, the first traveling mechanism 1 is capable of moving vertically relative to the truss 6 so that the first traveling mechanism 1 and the second traveling mechanism 2 are alternately in contact with the tunnel floor.

Specifically, as shown in fig. 1, a first traveling mechanism 1 is arranged at the lower part of each truss 6, and second traveling mechanisms 2 are respectively arranged at two sides of the first traveling mechanism 1, or vice versa; the first travelling mechanism 1 is used for driving the truss 6 to move longitudinally along the tunnel, and the second travelling mechanism 2 is used for driving the truss 6 to move transversely along the tunnel or vice versa; in order to achieve a vertical relative movement between the first travel mechanism 1 and the girder 6, a lift cylinder 4 is installed between the girder 6 and the first travel mechanism 1, the drive direction of which is vertical. The end of the cylinder body of the lift cylinder 4 is fixed with the cylinder body, the end of the piston rod is fixed with the upper end of the first travel mechanism 1, or conversely, the end of the cylinder body is fixed with the upper end of the first travel mechanism 1.

In this embodiment, the truss 6 is used for supporting the cross beam, the truss 6 includes a plurality of vertical support columns, and the plurality of support columns are fixed to the cross beam through the connecting longitudinal beam 3. The number of the connecting longitudinal beams 3 and the number of the connecting cross beams can be multiple, the extending direction of the connecting longitudinal beams 3 is parallel to the longitudinal direction of the tunnel, and the extending direction of the connecting cross beams is parallel to the transverse direction of the tunnel.

In this embodiment, the two sliding sleeves 9 are far away from or close to each other along with the truss 6, the power of the truss 6 can be from the translation cylinder 8 arranged between the two trusses 6, and the driving direction of the translation cylinder 8 is the transverse direction of the tunnel. The distance between two trusses 6 can be adjusted, after adjusting many times, the unable adaptation truss 6 interval adjustment's of size and stroke that translation hydro-cylinder 8 may appear the condition, the translation cylinder of different sizes need be adorned in the repacking this moment, for the convenience of translation cylinder's installation, at the outside demountable installation of sliding sleeve 9 there is fixing base 7, installs between fixing base 7 and is used for driving the translation hydro-cylinder 8 along tunnel lateral displacement between two trusses 6. The relative position of the fixed seat 7 and the sliding sleeve 9 can be adjusted and fixed to adapt to the translation oil cylinders 8 with different sizes.

In the case where the fixing base 7 is far from the girder 6, a reinforcing bar 28 may be installed between the fixing base 7 and the girder 6 to increase structural strength.

On the basis of the above mentioned change of the height of the vehicle body by using the difference of the number of the platform beams, in the present embodiment, the platform beams are arranged in a vertical line, and the central axis of the platform beam is a horizontal line; along the direction from bottom to top, the length of rack roof beam diminishes gradually.

Taking fig. 1 as an example, a schematic diagram of the case of using two gantry beams is provided, the two gantry beams are respectively a first gantry beam 14 located below, the first gantry beam 14 is fixedly connected with a cross beam through a first upright post 11, a second gantry beam 13 is fixed above the first gantry beam 14 through a second upright post 12, and the upper portion of the second gantry beam 13 is fixed with two uppermost templates (i.e., top molds) through a dome upright post 16. In fig. 1, 8 top formworks and two side formworks 26 are arranged on the same cross section of the outer portion of the vehicle body, symmetrical about the longitudinal center plane of the tunnel, and each side formwork is provided with one side formwork 26, a first top formwork 23, a second top formwork 22, a third top formwork 19 and a fourth top formwork 17. A shorter sideform extension plate is provided between the first top form 23 and sideform 26. At this time, the fourth top template 17 is the uppermost template, in order to better tightly support the fourth top template 17 and the side templates 26, the side templates 26 are provided with the side oil cylinders 25, one end (one end of the cylinder body) of each side oil cylinder 25 is hinged with the truss 6, the other end (one end of the piston) is hinged with one side, close to the vehicle body, of each side template 26, and the side templates 26 can be tightly supported and loosened through the extension and contraction of the side oil cylinders 25. Similarly, a vault oil cylinder 18 is arranged between the third top template 19 and the second rack beam 13, and is used for realizing the tight jacking and loosening of the third top template 19.

Taking fig. 2 as an example, which provides a schematic view when three gantry beams are used, it can be seen that a third gantry beam 30 is fixed on the upper portion of the second gantry beam 13 through a third column, and the dome column 16 is moved from the second gantry beam 13 to the third gantry beam 30. When the size of the vehicle body is large, the size of the section of the corresponding tunnel is also large, in fig. 2, 10 top formworks and two side formworks 26 are arranged outside the vehicle body at the same section, a top formwork lengthening plate 31 is added on each side by taking the longitudinal center plane of the tunnel as symmetry, and the position of the top formwork lengthening plate 31 replacing a fourth formwork becomes the highest top formwork. For better abutment of the fourth top template 17 and sidetemplates 26. Similarly, a vault oil cylinder 18 is arranged between the fourth top template 17 and the second rack beam 13, and is used for realizing the tight jacking and loosening of the fourth top template 17.

On the basis of the above-mentioned support rods, the support rods in this embodiment may be divided into a side support rod 24 for supporting the side mold plate 26 and a top support rod 15 for supporting the top mold, both the top support rod 15 and the bottom support rod may adopt a structural form of a screw rod reinforced rod, one end of the screw rod is installed in the screw rod seat 20, a screw hole matched with the screw rod is provided in the screw rod seat 20, the screw rod seat 20 is hinged with the mold plate, the other end of the screw rod is hinged with one end of the straight rod, and the other end of the straight rod is hinged with the vehicle body. Through rotating the lead screw, can adjust the distance between template and the automobile body, the bracing piece cooperates jointly with lateral part hydro-cylinder and top hydro-cylinder to the top of realizing the template is tight and is relaxed. The connection between the support bar and the formwork and the vehicle body can also adopt the conventional structural form.

On the basis of the above-mentioned sliding sleeve 9 along the tunnel lateral displacement along with truss 6, if the both ends of rack beam are fixed with two sliding sleeves 9 respectively, can influence the sliding sleeve 9 and move, in order to avoid dismantling the condition of rack beam and appear, the rack beam in this embodiment includes respectively with the first roof beam body and the second roof beam body that two sliding sleeves 9 are fixed, the first roof beam body can be dismantled with the tip of second roof beam body and be connected. When the two sliding sleeves 9 need to slide mutually, the connection between the first beam body and the second beam body is removed, and the first beam body and the second beam body are respectively close to or far away from each other along with the sliding sleeves 9. An extension bar 29 is spliced or reduced between the first and second beam bodies to adapt the length of the trestle beam to the length of the cross beam. When the size of the section of the tunnel to which the trolley is fitted is reduced, the extension bar 29 of a set length needs to be removed before the truss 6 moves transversely along the tunnel.

The working principle is as follows: after the secondary lining of the tunnel with the current section is finished, the section of the trolley needs to be changed, and the first walking device is lifted away from the bottom surface of the tunnel by the jacking cylinder.

If the size of the car body needs to be enlarged, the number of the beam lengthening blocks 10 is increased, the middle connecting point of the rack beam is disconnected to be divided into a first beam body or a second beam body, the translation oil cylinder 8 drives the two trusses 6 to move outwards, and then the lengthening rod 29 is additionally arranged between the first beam body and the second beam body.

In order to reduce the size of the car body, the middle connecting point of the platform frame beam is disconnected to be divided into a first beam body or a second beam body, and a set number of extension bars 29 between the first beam body and the second beam body are removed. The translation oil cylinder 8 drives the two trusses 6 to move inwards, and the beam lengthening blocks 10 with the set number are removed.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.

Claims

1. A variable-section two-lining trolley is characterized by comprising a trolley body, wherein the trolley body comprises a plurality of transverse beams with horizontal axes, each transverse beam comprises an inner transverse beam and two sliding sleeves sleeved outside the inner transverse beam, the sliding sleeves positioned on the same sides of the transverse beams form sliding sleeve assemblies, a truss is fixed at the lower part of each sliding sleeve assembly, the distance between the two trusses can be adjusted, and the length of each transverse beam can be adjusted to change the width of the trolley body; the number of adjustable rack beams are arranged above the cross beam to change the height of the vehicle body.

2. The variable profile two-liner trolley of claim 1 wherein the truss is provided at a lower portion thereof with a first traveling mechanism for driving the truss to move axially along the tunnel and a second traveling mechanism for driving the truss to move laterally along the tunnel.

3. The variable profile secondary liner trolley of claim 2 wherein the first travel mechanism is capable of vertical relative movement with the truss frame such that the first travel mechanism and the second travel mechanism alternately contact the tunnel floor.

4. The two-lined trolley with the variable cross section according to claim 1, wherein the truss comprises a plurality of vertical supporting columns, and the plurality of supporting columns are fixed through connecting longitudinal beams and connecting cross beams.

5. The two-lining trolley with the variable cross section according to claim 1, wherein a plurality of beam extension blocks are detachably spliced at two ends of the inner beam respectively, and the number of the beam extension blocks is adapted to the length of the beam.

6. The two-lining trolley with the variable cross section according to claim 1, wherein fixed seats are detachably mounted on the outer portions of the sliding sleeves, and translation oil cylinders for driving the two trusses to transversely displace along the tunnel are mounted between the fixed seats.

7. The two-liner trolley of claim 6 wherein the relative positions of the fixed base and the sliding sleeve can be adjusted and fixed to accommodate translation cylinders of different sizes.

8. The variable profile two-liner trolley of claim 1 wherein the trolley beams are arranged in vertical columns with the central axis of the trolley beams being horizontal; along the direction from bottom to top, the length of rack roof beam diminishes gradually.

9. The variable profile two liner trolley of claim 8 wherein the gantry beam comprises a first beam and a second beam secured to the two runners respectively, the first beam being removably attached to the ends of the second beam.

10. The variable profile two liner trolley of claim 9 wherein the first and second beams can be spliced or reduced to lengthen the bar to adapt the length of the trestle beam to the length of the cross beam.