阅读说明：本技术 一种仰拱栈桥台车用自行式栈桥小车 (Self-propelled landing stage dolly for inverted arch landing stage platform truck ) 是由 李军 李明轩 李彬 王红 于 2020-05-27 设计创作，主要内容包括：本发明提供一种仰拱栈桥台车用自行式栈桥小车,本发明中的仰拱模板系统一次安装完成后,可由栈桥小车拖动实现相同断面的整条隧道仰拱作业施工,省去了模板的拼装及拆除,采用全自动机械控制移动和定位,大大减少了工人的劳动强度,节约劳动成本,提高施工效率和施工质量；同时,仰拱模板系统与栈桥小车之间为可拆卸连接,分离方式简单,可以保证在仰拱开挖、扎钢筋等工序时,仰拱模板不对其它工序施工造成干扰,控制灵活方便。(The invention provides a self-propelled trestle trolley for an inverted arch trestle trolley, wherein after an inverted arch template system is installed at one time, the inverted arch template system can be dragged by the trestle trolley to realize inverted arch operation construction of a whole tunnel with the same section, so that the assembly and disassembly of templates are omitted, and the movement and positioning are controlled by full-automatic machinery, thereby greatly reducing the labor intensity of workers, saving the labor cost and improving the construction efficiency and the construction quality; meanwhile, the inverted arch template system and the trestle trolley are detachably connected, the separation mode is simple, the inverted arch template can be guaranteed not to interfere with other procedures during the procedures of inverted arch excavation, steel bar binding and the like, and the control is flexible and convenient.)

1. The utility model provides an invert landing stage is self-propelled landing stage dolly for platform truck, its characterized in that: the trestle trolley consists of two groups of symmetrically arranged support leg mechanisms and a connecting beam (501) for connecting the two support leg mechanisms, wherein the top of the connecting beam (501) is fixedly provided with a plurality of rollers (502) for supporting a bridge main body, and the bridge main body can slide on the rollers (502) arranged on the rear lifting support legs (5) to pass under the drive of the trestle travelling mechanism (1);

the inner side of the top end of the leg mechanism is provided with a longitudinal movement sliding mechanism (503), the longitudinal movement sliding mechanism (503) comprises a sliding shell (5031) arranged on the inner side of the leg mechanism, a sliding motor (5032) and two groups of sliding wheels (5033) symmetrically arranged on two sides of the sliding motor (5032) are arranged in the sliding shell (5031), the two groups of sliding wheels (5033) are connected with the sliding motor (5032) through a transmission piece (5034), and the transmission piece (5034) comprises but is not limited to a chain and a belt.

2. The self-propelled trestle trolley for the inverted arch trestle trolley according to claim 1, characterized in that: the supporting leg mechanism comprises two lifting legs (504) arranged in parallel and a connecting longitudinal beam (505) used for connecting the two lifting legs, the bottom of each lifting leg (504) is detachably provided with a sliding sleeve (506), a sliding body (507) is arranged in the sliding sleeve (506) in a sliding mode, one end, far away from the sliding sleeve (506), of the sliding body (507) is provided with a bottom plate (508), a lifting oil cylinder I is arranged between each lifting leg (504) and the corresponding bottom plate (508), and one lifting leg (504) is connected with an inverted arch template system (7) through a lifting mechanism (6).

3. The self-propelled trestle trolley for the inverted arch trestle trolley according to claim 2, characterized in that: the inverted arch template system (7) is connected with a traction plate (8) arranged in the vertical direction, and the top of the traction plate (8) is connected with one of the lifting legs (504) through a lifting mechanism (6).

4. The self-propelled trestle trolley for the inverted arch trestle trolley according to claim 3, characterized in that: inverted arch template system (7) comprise the inverted arch template that two sets of symmetries set up, the inverted arch template is including articulated fixed inverted arch template (701) and the activity inverted arch template (702) that constitute whole circular arc face each other, the front end of fixed inverted arch template (701) and one of them terminal surface fixed connection of traction plate (8), the end of fixed inverted arch template (701) is provided with pulls running gear (4), be provided with tensile mechanism (706) between fixed inverted arch template (701) and activity inverted arch template (702).

5. The self-propelled trestle trolley for the inverted arch trestle trolley according to claim 4, characterized in that: an inverted arch beam (703) is arranged on one side, close to the movable inverted arch template (702), of the fixed inverted arch template (701) along the length direction, a reversed-shaped connecting angle steel (704) is fixedly arranged on the top of the inverted arch beam (703), the free end of the connecting angle steel (704) is connected with the fixed inverted arch template (703), and two ends of the stretching mechanism (706) are hinged to the connecting angle steel (704) and the movable inverted arch template (702) respectively.

6. The self-propelled trestle trolley for the inverted arch trestle trolley according to claim 5, characterized in that: a plurality of rotating assemblies (705) are further arranged between the inverted arch beam (703) and the movable inverted arch template (702) at intervals, each rotating assembly (705) is an arc-shaped connecting plate, one end of each arc-shaped connecting plate is hinged to the top of the inverted arch beam (703), and the free ends of the arc-shaped connecting plates are fixedly connected to the movable inverted arch template (702).

7. The self-propelled trestle trolley for the inverted arch trestle trolley according to claim 5, characterized in that: the stretching mechanism and the lifting mechanism (6) are both hydraulic oil cylinders.

8. The self-propelled trestle trolley for the inverted arch trestle trolley according to claim 6, characterized in that: the inner arc surface of the arc-shaped connecting plate faces the inverted arch cross beam (703).

9. The self-propelled trestle trolley for the inverted arch trestle trolley according to claim 8, characterized in that: the longitudinal section of the traction plate (8) is crescent.

10. The self-propelled trestle trolley for the inverted arch trestle trolley according to claim 4, characterized in that: the traction walking mechanism (4) comprises an installation frame (401) arranged on a fixed inverted arch template (701), a lifting cylinder II (402) is arranged inside the installation frame (401), and a walking wheel I (403) is arranged at the lower end of the lifting cylinder II (402).

Technical Field

The invention relates to the technical field of tunnel construction, in particular to a self-propelled trestle trolley for an inverted arch trestle trolley.

Background

At present, the tunnel inverted arch construction link in China cannot realize full mechanical operation, and carrying, assembling and disassembling work and a large amount of manual repeated operation exist in each construction cycle. On one hand, the labor intensity of workers is high, on the other hand, construction interruption is generated, continuous operation cannot be formed, the construction efficiency is low, and the construction progress is influenced. Especially, the inverted arch formwork system has a complicated structure and high positioning requirements for the formwork, so that if the inverted arch formwork system is frequently disassembled and assembled in the construction process, not only can human resources be wasted, but also the positioning accuracy of the inverted arch construction formwork is easily reduced, the construction quality of an inverted arch is reduced, and the inverted arch formwork system has a large volume, so that the inverted arch formwork system is inconvenient to move in a tunnel only by manpower and the positioning accuracy is difficult to guarantee.

Disclosure of Invention

The invention aims to provide a self-propelled trestle trolley for an inverted arch trestle trolley, which can slide on the top of the inverted arch trestle trolley and drive an inverted arch template system to slide on two sides of the inverted arch trestle trolley while sliding, so that frequent disassembly and assembly are not needed, the working efficiency is improved, in addition, the vertical height of the inverted arch template system can be adjusted through a lifting mechanism, the positioning precision is high, and the construction precision is improved.

In order to achieve the purpose, the invention adopts the technical scheme that: a self-propelled landing stage dolly for an inverted arch landing stage trolley is composed of two groups of symmetrically arranged landing leg mechanisms and a connecting crossbeam for connecting the two landing leg mechanisms, wherein the top of the connecting crossbeam is fixedly provided with a plurality of rollers for supporting a bridge main body, and the bridge main body can slide on the rollers arranged on rear lifting supporting legs under the drive of a landing stage travelling mechanism;

the top inboard of landing leg mechanism is provided with indulges and moves slide mechanism, indulge and move slide mechanism including setting up the slip casing in landing leg mechanism inboard, the inside of slip casing is provided with sliding motor and the symmetry sets up two sets of movable pulleys in the sliding motor both sides, and two sets of movable pulleys all link to each other with sliding motor through the driving medium, and this driving medium includes but not only is limited to chain and belt.

Further, landing leg mechanism includes two parallel arrangement's lift legs and is used for connecting that connection longeron between them is constituteed, and the bottom detachable of lift leg is provided with the sliding sleeve, slides in the sliding sleeve and is provided with the sliding body, and the one end that the sliding sleeve was kept away from to the sliding body is provided with the bottom plate, is provided with lift cylinder I between lift leg and the bottom plate, and one of them lift leg passes through elevating system and invert template system link to each other.

Furthermore, the inverted arch template system is connected with a traction plate arranged in the vertical direction, and the top of the traction plate is connected with one of the lifting legs through a lifting mechanism.

Further, the inverted arch template system comprises the inverted arch template that two sets of symmetries set up, the inverted arch template is including articulated fixed inverted arch template and the activity inverted arch template that constitutes whole arc surface each other, the front end of fixed inverted arch template and one of them terminal surface fixed connection of traction plate, the end of fixed inverted arch template is provided with pulls running gear, be provided with tension mechanism between fixed inverted arch template and the activity inverted arch template.

Furthermore, an inverted arch beam is arranged on one side of the fixed inverted arch template close to the movable inverted arch template along the length direction, a connecting angle steel in a reversed L shape is fixedly arranged at the top of the inverted arch beam, the free end of the connecting angle steel is connected with the fixed inverted arch template, and two ends of the stretching mechanism are respectively hinged with the connecting angle steel and the movable inverted arch template.

Furthermore, still the interval is provided with a plurality of rotating assembly between inverted arch crossbeam and the activity inverted arch template, and rotating assembly is an arc connecting plate, and wherein one end of arc connecting plate articulates at the top of inverted arch crossbeam, and the free end fixed connection of arc connecting plate is on the activity inverted arch template.

Furthermore, the stretching mechanism and the lifting mechanism are both hydraulic oil cylinders.

Further, the inner arc surface of the arc-shaped connecting plate faces the inverted arch beam.

Furthermore, the longitudinal section of the traction plate is crescent.

Furthermore, draw running gear including setting up the mounting bracket in fixed inverted arch template, the inside of mounting bracket is provided with lift cylinder II, and lift cylinder II's lower extreme is provided with walking wheel I.

Compared with the prior art, the invention has the beneficial effects that:

1. after the inverted arch template system is installed once, the inverted arch template system can be dragged by a trestle trolley to realize inverted arch operation construction of the whole tunnel with the same section, so that the assembly and disassembly of templates are omitted, and full-automatic machinery is adopted to control movement and positioning, thereby greatly reducing the labor intensity of workers, saving the labor cost and improving the construction efficiency and the construction quality;

2. the inverted arch template system is detachably connected with the trestle trolley, the separation mode is simple, the inverted arch template can not interfere with other procedures during working procedures of inverted arch excavation, steel bar binding and the like, and the control is flexible and convenient;

3. the lifting mechanism on the inverted arch template system can realize automatic and rapid demoulding of the integral inverted arch template, greatly improve the construction efficiency and reduce the labor intensity of workers;

4. after the trestle trolley and the inverted arch template system are assembled at one time, the construction of the whole tunnel can be completed without disassembling again under the same tunnel section, so that the construction efficiency is greatly improved;

5. the inverted arch template in the inverted arch template system is formed by hinging a fixed inverted arch template and a movable inverted arch template, and when the movable inverted arch surfaces at two sides of an inverted arch layer need to be demolded, the movable inverted arch template can be controlled to overturn to demold, so that the demolding speed can be improved; simultaneously, when the inverted arch template system does not need to be used, the movable inverted arch template can be turned and contracted, so that the pouring construction of filling layer concrete is facilitated, and the operation is very convenient.

Drawings

FIG. 1 is a schematic structural view of a self-propelled trestle trolley for an inverted arch trestle trolley;

FIG. 2 is a schematic view of the longitudinal sliding mechanism according to the present invention;

FIG. 3 is a schematic structural diagram of an inverted arch template system of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic structural view of the traction mechanism of the present invention;

the labels in the figure are: 4. the device comprises a traction walking mechanism, 401, a mounting frame, 402, lifting oil cylinders II and 403, walking wheels I and 5, a rear lifting support leg, 501, a connecting beam, 502, a roller, 503, a longitudinal movement sliding mechanism, 5031, a sliding shell, 5032, a sliding motor, 5033, a sliding wheel, 5034, a transmission part, 504, a lifting leg, 505, a connecting longitudinal beam, 506, a sliding sleeve, 507, a sliding body, 508, a bottom plate, 6, a lifting mechanism, 7, an inverted arch template system, 701, a fixed inverted arch template, 702, a movable inverted arch template, 703, an inverted arch beam, 704, a connecting angle steel, 705, a rotating assembly, 8 and a traction plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

A self-propelled trestle trolley for an inverted arch trestle trolley is shown in figure 1, and comprises two groups of symmetrically arranged landing leg mechanisms and a connecting cross beam 501 for connecting the landing leg mechanisms and the connecting cross beam, wherein the top of the connecting cross beam 501 is fixedly provided with a plurality of rollers 502 for supporting a bridge main body, and the bridge main body can slide on the rollers 502 arranged on a rear lifting supporting leg 5 under the drive of the trestle travelling mechanism 1;

as shown in fig. 2, the longitudinal sliding mechanism 503 is disposed inside the leg mechanism, and the longitudinal sliding mechanism 503 includes a sliding housing 5031 disposed inside the leg mechanism, a sliding motor 5032 and two sets of sliding wheels 5033 symmetrically disposed on two sides of the sliding motor 5032 are disposed inside the sliding housing 5031, the two sets of sliding wheels 5033 are both connected to the sliding motor 5032 through a transmission member 5034, the transmission member 5034 includes but is not limited to a chain and a belt, the bridge main body is disposed between the longitudinal sliding mechanism 503 and the roller 502, a sliding rail matched with the sliding wheel 5033 is disposed on the top of the bridge main body, and the longitudinal sliding mechanism 503 can drive the trestle car to slide on the bridge main body.

The scheme is further optimized, the supporting leg mechanism comprises two lifting legs 504 which are symmetrically arranged and a connecting longitudinal beam 505 for connecting the two lifting legs, a sliding sleeve 506 is detachably arranged at the bottom of each lifting leg 504, a sliding body 507 is slidably arranged on the inner side of the sliding sleeve 506, a bottom plate 508 is arranged at one end, away from the sliding sleeve 506, of the sliding body 507, a lifting oil cylinder I (not shown in the figure) is arranged between each lifting leg 504 and the corresponding bottom plate 508, one lifting leg 504 is connected with the inverted arch template system 7 through the lifting mechanism 6, automatic and rapid demolding of the integral inverted arch template can be achieved through the lifting mechanism on the inverted arch template system, the construction efficiency is greatly improved, and the labor intensity of workers is reduced; and moreover, the inverted arch template system is detachably connected with the trestle trolley, the separation mode is simple, the inverted arch template can not interfere with other procedures during the procedures of inverted arch excavation, steel bar binding and the like, and the control is flexible and convenient.

In a further refinement of the solution, as shown in fig. 3, the inverted arch formwork system 7 is connected to a traction plate 8 arranged in a vertical direction, and the top of the traction plate 8 is connected to one of the lifting legs 504 via the lifting mechanism 6. The traction trolley slides on the bridge main body and drives the inverted arch template system 7 to move on two sides of the bridge main body, the inverted arch template system 7 is dragged to travel by the trestle trolley after being installed once, the inverted arch operation construction of the whole tunnel with the same section can be realized, the assembly and disassembly of templates are omitted, the movement and the positioning are controlled by full-automatic machinery, the labor intensity of workers is greatly reduced, the labor cost is saved, and the construction efficiency and the construction quality are improved;

further optimize this scheme, invert template system 7 comprises the invert template that two sets of symmetries set up, as shown in fig. 4, invert template is including articulated fixed invert template 701 and the activity invert template 702 that constitutes whole arc surface each other, fixed invert template 701's front end and one of them terminal surface fixed connection of traction plate 8, fixed invert template 701's end is provided with pulls running gear 4, be provided with stretching mechanism 706 between fixed invert template 701 and the activity invert template 702.

According to the scheme, an inverted arch cross beam 703 is arranged on one side, close to the movable inverted arch template 702, of the fixed inverted arch template 701 along the length direction, a connecting angle steel 704 in a reversed-L shape is fixedly arranged on the top of the inverted arch cross beam 703, the free end of the connecting angle steel 704 is connected with the fixed inverted arch template 703, and two ends of the stretching mechanism 706 are hinged to the connecting angle steel 704 and the movable inverted arch template 702 respectively.

Further optimize this scheme, still the interval is provided with a plurality of rotating assembly 705 between inverted arch crossbeam 703 and the activity inverted arch template 702, rotating assembly 705 is an arc connecting plate, and wherein one end of arc connecting plate articulates at the top of inverted arch crossbeam 703, and the free end fixed connection of arc connecting plate is on activity inverted arch template 702, and here is in order to reach best result of use, and the bilateral symmetry of the free end of arc connecting plate is provided with two and is trapezoidal reinforcing plates to promote system's stability.

According to the scheme, the stretching mechanism 706 and the lifting mechanism 6 are both hydraulic oil cylinders.

Further optimize this scheme, the intrados of arc connecting plate is towards inverted arch crossbeam 703.

Further optimize this scheme, in order to prevent that the traction plate 8 from causing the interference to other subassemblies, the longitudinal section of traction plate 8 is crescent.

Further optimizing the scheme, as shown in fig. 5, the traction traveling mechanism 4 includes an installation frame 401 arranged on the fixed inverted arch formwork 701, a lifting cylinder ii 402 is arranged inside the installation frame 401, and a traveling wheel i 403 is arranged at the lower end of the lifting cylinder ii 402.

The inverted arch template is formed by hinging a fixed inverted arch template 701 and a movable inverted arch template 702, when the movable inverted arch surfaces at two sides of an inverted arch layer need to be demolded, the movable inverted arch template 702 can be controlled to overturn to demold, and the demolding speed can be improved; meanwhile, when the inverted arch formwork system is not needed to be used, the movable inverted arch formwork 702 can be turned and contracted, so that the pouring construction of filling layer concrete is facilitated, and the operation is very convenient.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.