CN113530575B - An arch installation trolley for tunnel multi-function construction - Google Patents

Abstract

The invention provides an arch installation trolley for tunnel multi-function construction, including a car body, an electro-hydraulic system, a running mechanism and a supporting mechanism, the car body includes a platform and a working platform, and the working platform is suspended and connected to the platform The two sides of the frame; the car body is provided with an arch installation unit, which includes a top arch assembly vehicle, an arch transport vehicle, a cantilever crane, a first longitudinal movement mechanism, a second longitudinal movement mechanism, a manipulator, a working arm and an arch The frame support rod, the left and right ends of the top arch assembly vehicle are installed on the first longitudinal movement mechanism, the top arch assembly vehicle includes the vehicle frame, the arch support assembly and the assembly vehicle longitudinal movement assembly, and the arch transport vehicle is installed on the second longitudinal movement mechanism. On the moving mechanism, the cantilever crane is arranged at the rear end of the platform, the manipulator and the arch support rod are installed and fixed at the front end of the working platform, and the working arm is installed and fixed at the front end of the platform. The arch installation trolley can realize the rapid installation of three arches, and has high installation efficiency and strong applicability.

Description

An arch installation trolley for tunnel multi-function construction

technical field

The invention relates to the technical field of tunnel construction, in particular to an arch installation trolley used for multi-function construction of tunnels.

Background technique

The tunnel construction site has a poor environment and low safety. With the sharp increase in domestic labor costs and the increasingly stringent safety requirements for tunnel construction, intelligent, informatized, and mechanized tunnel construction has become a consensus. During the excavation process of the tunnel, it is necessary to quickly and effectively support the excavation section in time to avoid the problem of tunnel instability and collapse. In the initial support of the weak surrounding rock of the tunnel, arch frames are often used to strengthen the rigidity of the initial support structure . At present, there are mainly two ways to install the arch frame. One is manual installation. The position of the arch frame usually needs to be adjusted manually. Only one arch frame can be installed at a time. The labor intensity is high, the number of workers is large, and the installation efficiency is high. Low, low safety factor and difficult to control the installation quality. Another way is to use the arch frame to install the three-arm trolley to install the arch frame, but the arch frame installation three-arm trolley can only install one arch frame at a time, and the installation efficiency is low.

Contents of the invention

The invention provides an arch installation trolley for multi-function construction of tunnels. The arch installation trolley can realize rapid installation of three arches, and has high installation efficiency and strong applicability.

The technical scheme adopted to realize the above-mentioned purpose of the present invention is:

An arch installation trolley for tunnel multi-function construction, at least including a car body, an electro-hydraulic system located on the car body to provide operating power for each component on the trolley, and a running mechanism and support connected to the bottom of the car body mechanism, the vehicle body includes a platform and a working platform, wherein two platforms are arranged vertically, namely an upper platform and a lower platform, and the upper platform includes an upper roof and an upper bracket connected and fixed under the upper roof, and the lower The stand includes a lower top board and a lower bracket connected and fixed under the lower top board, and the upper bracket is connected to the lower top board through a third longitudinal movement mechanism, so that the upper stand is connected to the lower stand and the upper stand is moved along the lower The bench moves longitudinally, and the working platform is suspended and connected to both sides of the bench; the car body is provided with an arch installation unit, and the arch installation unit includes a top arch assembly vehicle for pre-assembly of multi-arch top arches, and arch transportation Car, cantilever crane, first longitudinal movement mechanism, second longitudinal movement mechanism, manipulator, working arm and arch support bar, the first longitudinal movement mechanism and the second longitudinal movement mechanism are all installed on the platform and along the trolley The directions are set in parallel, and the second longitudinal movement mechanism is located on the outside of the platform, the first longitudinal movement mechanism is located on the inner side of the platform, the left and right ends of the top arch assembly vehicle are installed on the first longitudinal movement mechanism and pass through the first The vertical movement mechanism moves longitudinally. The top arch assembly vehicle includes an overall arched vehicle frame, an arch support assembly and an assembly vehicle longitudinal movement assembly. The connected semi-arched support frame and the longitudinal frame connected between the two parallel support frames arranged along the direction of the trolley, the three are connected as an integrated structure, and the arch support components are distributed on the top frame in a matrix , the arch support assembly distributed along the direction perpendicular to the trolley is a group, and there are more than three sets of arch support assemblies for supporting multiple roof arches. The arch transport vehicle is installed on the second longitudinal movement mechanism and passes through the second The vertical movement mechanism moves longitudinally, the cantilever crane is arranged at the rear end of the platform, the manipulator and the arch support rod are installed and fixed on the front end of the working platform, and the arch support rod is located above the manipulator, and the working arm is installed and fixed on the bottom of the platform. front end.

The first longitudinal movement mechanism is a double longitudinal movement structure, including a fixed rail connected and fixed on the upper surface of the upper platform, a slide rail installed in the fixed rail, a first support wheel, a first support rail, two The first pulley near the rear end of the trolley, the first rack connected to the bottom of the slide rail, and the fixedly connected first hydraulic motor and first gear connected to the upper bracket, wherein the fixed rail is composed of two sections in the shape of " [" type rail assembled groove structure, the first gear meshes with the first rack, drives the rack and pinion through the first hydraulic motor, so that the slide rail moves on the fixed rail, and the first support rail Connected to the bottom of the slide rail and set parallel to the first rack, the first support wheel straddles the first support rail and is connected and fixed on the upper bracket near the front end of the trolley to prevent the slide rail from detaching from the fixed rail during longitudinal movement The top of the slide rail is provided with a top arch assembly vehicle track, the top arch assembly vehicle is installed on the top arch assembly vehicle track and moves longitudinally along the slide rail, the length of the slide rail and the top arch assembly vehicle track is consistent with the length of the upper platform .

The arch jacking assembly includes a jacking cylinder and a groove-shaped jacking piece connected to the top of the jacking cylinder. The height of the jacking piece is adjusted through the jacking cylinder. The vertical movement frame connected to the bottom of the two parallel support frames, the traveling wheel of the assembly vehicle installed at the bottom of the longitudinal movement frame, the fixedly connected fifth hydraulic motor and the motor output shaft gear installed on the side of the longitudinal movement frame, and the fixed connection The fifth gear on the running wheel of the assembled vehicle, the running wheel of the assembled vehicle straddles the second longitudinal movement mechanism, the motor output shaft gear meshes with the fifth gear, the fifth hydraulic motor drives the motor output shaft gear and the fifth gear Drive the arch installation vehicle to move longitudinally as a whole.

The top frame is located on both sides of the front and rear ends of the trolley and is connected with "]"-shaped expansion joints through telescopic oil cylinders. There are more than one set of arch support components on the expansion joints, and the arch support on the expansion joints is adjusted by the telescopic oil cylinders. The distance between the component and the arch support component on the top frame, thereby adjusting the spacing of each arch; the support frame is a telescopic structure, and the support frame is adjusted through the lifting cylinder connected between the longitudinal frame and the longitudinal frame the height of.

The second longitudinal movement mechanism includes an I-shaped transport vehicle track, a transport vehicle support straddling the transport vehicle track, a transport vehicle running wheel installed at the bottom of the transport vehicle support, and a wheel located on the working arm support. The fixedly connected second hydraulic motor and the motor output shaft gear and the second gear fixedly connected to the traveling wheel of the transport vehicle, the support of the transport vehicle and the arch transport vehicle are fixedly connected, the motor output shaft gear meshes with the second gear, and the second The hydraulic motor drives the motor output shaft gear and the second gear transmission and drives the arch transport vehicle to move longitudinally as a whole. The transport vehicle track is connected to the upper platform and the length of the transport vehicle track is consistent with the length of the upper platform; the arch transport The car includes a telescopic column and an arch tightening device connected to the top of the column, wherein the height of the column is adjusted through a lifting cylinder.

Both the upper bracket and the lower bracket are telescopic structures and are evenly connected with lifting cylinders, so that the height of the upper platform and the lower platform can be adjusted with the lifting cylinders.

The arch support rod is connected with a diagonal strut through a pin shaft, which is convenient for laying down and erecting the arch support rod.

The third longitudinal movement mechanism includes a platform track connected and fixed on the lower top plate, a platform support connected and fixed on the bottom of the upper bracket and installed in the platform track, a third supporting wheel, a third supporting rail, and a mounting bracket. The third pulley near the rear end of the trolley on both sides of the platform support, the third rack connected to the bottom of the platform support, and the fixedly connected third hydraulic motor and third gear connected to the upper support. The rack track is a grooved structure assembled by two steel rails with a “[” shape in cross-section. The third gear meshes with the third rack and is driven by the third hydraulic motor to drive the rack and pinion to make the rack support and The upper platform moves on the platform track as a whole, the third support rail is connected to the bottom of the platform support and arranged in parallel with the third rack, the third support wheel straddles the third support rail and is connected and fixed on the On the upper bracket close to the front end of the trolley, prevent the stand support from deviating from the stand track when moving vertically, and the length of the stand track is consistent with the length of the stand.

There are two working arms, both of which are installed upright on the upper surface of the upper roof; the working arm includes a frame, a slewing assembly, a luffing assembly, a basic arm frame and a telescopic arm frame, wherein the frame is connected to the upper roof , the basic boom is connected to the frame through the rotary assembly and is driven by the rotary assembly to move back and forth in the horizontal direction; the telescopic boom is connected to the basic boom through the luffing assembly and is driven to and fro in the vertical direction by the luffing assembly. A telescopic oil cylinder is installed in the telescopic arm frame and is driven by the telescopic oil cylinder to move back and forth longitudinally, so that the working arm works in three directions of freedom.

One side of the working platform is connected with a suspension frame and the working platform is connected to the platform through the suspension frame, and the suspension frame is suspended and connected to both sides of the platform through the fourth longitudinal movement mechanism, so that the working platform moves longitudinally along the platform , the fourth vertical movement mechanism includes a platform track connected to the side of the platform, a fourth rack installed in the platform track, a suspension plate connected to the suspension frame and clamped in the platform track, located on the suspension frame The fourth hydraulic motor and the fourth gear are fixedly connected, the platform track is a groove structure, two platform tracks are arranged in parallel, and two rows of suspension plates are distributed in parallel at the corresponding positions. The gear rack is engaged, and the fourth hydraulic motor drives the rack and pinion transmission, so that the suspension frame moves on the platform track, so that the working platform moves along the platform; Driven by the oil-moving cylinder, it moves laterally along the side of the working platform away from the platform. The telescopic platform is located at the front end of the working platform.

Compared with the prior art, the arch installation trolley provided by the present invention for tunnel multi-function method construction has the following advantages: 1. The arch installation trolley provided by the present invention can realize the rapid installation of three arches, and the installation Higher efficiency. 2. The arch installation trolley provided by the present invention can meet the installation of arches in various construction methods such as the full-section method, the two-step method, and the three-step method, and has strong adaptability. 3. The underside of the arch installation trolley provided by the present invention can freely enter and exit the slag discharging vehicle, realizing the parallel operation of slag discharging and arch installation, improving tunnel construction efficiency and reducing construction cost.

Description of drawings

Fig. 1 is the three-dimensional structural diagram of the arch frame installation trolley used for tunnel multi-function method construction provided by the present invention;

Fig. 2 is the structural diagram of platform and working platform among the present invention;

Fig. 3 is a structural diagram of the third longitudinal movement mechanism in the present invention;

Wherein (a) is the side view of the third longitudinal movement mechanism, (b) (c) and (d) are the sectional views of the third longitudinal movement mechanism;

Fig. 4 is the structural diagram of the working platform on both sides of the upper platform in the present invention;

Fig. 5 is the structural diagram of working arm among the present invention;

Fig. 6 is the structural diagram of cantilever crane, manipulator and arch support bar in the present invention;

Wherein (a) is a cantilever crane, (b) is a manipulator, and (c) is an arch support rod;

Fig. 7 is the structural diagram of the arch transport vehicle and the second longitudinal movement mechanism in the present invention;

Fig. 8 is a structural diagram of the first longitudinal movement mechanism in the present invention;

Wherein (a) is the side view of the first longitudinal movement mechanism, and (b), (c) and (d) are the cross-sectional views of the first longitudinal movement mechanism;

Fig. 9 is a perspective view of different directions of the first longitudinal movement mechanism in the present invention;

Fig. 10 is a perspective view of different directions of the top arch assembled vehicle in the present invention;

Figure 11 is a structural diagram of the running mechanism in the present invention, wherein (a) and (b) are perspective views in different directions;

Fig. 12 is a structural diagram of a support mechanism in the present invention;

Among the figure: 1-stand, 101-upper stand, 1011-upper top plate, 1012-upper support, 102-lower stand, 1021-lower top plate, 1022-lower support, 103-the third longitudinal movement mechanism, 1031- Bench track, 1032-bench support, 1033-third supporting wheel, 1034-third supporting rail, 1035-third pulley, 1036-third rack, 1037-third hydraulic motor, 1038-third gear , 104-lift cylinder A;

20-work platform, 21-suspension frame, 22-telescopic platform, 23-transverse oil cylinder, 24-ladder, 200-the fourth longitudinal movement mechanism, 201-platform track, 202-suspension plate;

31-top arch assembly vehicle, 311-frame, 3111-top frame, 3112-support frame, 3113-longitudinal frame, 312-arch frame jacking assembly, 3121-jacking cylinder, 3122-jacking parts, 313-assembly Vehicle longitudinal movement components, 3131-longitudinal movement frame, 3132-assembly car running wheel, 3133-fifth hydraulic motor, 314-expansion joint, 315-lift cylinder B;

32-the first longitudinal movement mechanism, 321-fixed rail, 322-sliding rail, 323-the first supporting wheel, 324-the first supporting rail, 325-the first pulley, 326-the first rack, 327-the first hydraulic pressure Motor, 328-first gear, 329-top arch assembly car track;

33-arch transport vehicle, 331-column, 332-arch tightening device, 34-second longitudinal movement mechanism, 341-transport vehicle track, 342-transport vehicle support, 35-cantilever crane, 36-manipulator;

37-working arm, 371-frame, 372-slewing assembly, 373-luffing assembly, 374-basic boom, 375-telescopic boom;

38-arch support rod, 39-diagonal brace;

4-running mechanism, 401-steering assembly, 402-suspension assembly, 403-tire, 404-drive motor, 405-axle; 5-supporting mechanism, 501-connecting seat, 502-supporting cylinder, 503-supporting seat.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings.

The overall structure of the arch installation trolley used in tunnel multi-function construction provided by the present invention is shown in Figure 1, including a car body, an electro-hydraulic system located on the car body that provides operating power for each component on the trolley, connected to The traveling mechanism 4, supporting mechanism 5 and arch installation unit at the bottom of the car body, wherein the car body includes a platform 1 and a working platform 20.

In this embodiment, there are two stands 1 arranged vertically, namely an upper stand 101 and a lower stand 102. The upper stand includes an upper top plate 1011 and an upper bracket 1012 connected and fixed under the upper top plate. The top plate 1021 and the lower support 1022 connected and fixed under the lower top plate, the upper support is connected to the lower top plate through the third longitudinal movement mechanism 103, so that the upper platform is connected to the lower platform and the upper platform is moved along the lower platform. The frame moves longitudinally; the upper frame and the lower frame are all telescopic structures and are evenly distributed and connected with lifting cylinders A104, so that the height of the upper frame and the lower frame can be adjusted with the lifting cylinders. The structure of the stand is shown in Figure 2, and two lift cylinders are respectively arranged on the left and right sides of the upper stand and the lower stand. During the construction of the arch installation trolley, the upper platform can move forward longitudinally by 0-4m through the longitudinal movement mechanism. In addition, the height of each platform can be adjusted by 0-1m, and the overall height of the arch installation trolley can be adjusted by 0-2m. , to meet the full-section construction and adapt to the step method construction. In addition, the height of the lower platform can reach 3.5m to 4.5m (including the height of the traveling mechanism) through the lifting cylinder. After the drilling and blasting holes are completed, the slag discharge vehicle can enter the excavation surface from the bottom of the lower platform and discharge slag, realizing The parallel operation of slag discharge and arch installation improves tunnel construction efficiency and reduces construction costs.

The third vertical movement mechanism 103 includes a platform rail 1031 connected and fixed on the lower top plate, a platform support 1032 connected and fixed on the bottom of the upper support and installed in the platform track, a third supporting wheel 1033, and a third supporting rail. 1034, the third pulley 1035 near the rear end of the trolley installed on both sides of the platform support, the third rack 1036 connected to the bottom of the platform support and the fixedly connected third hydraulic motor 1037 connected to the upper support and The third gear 1038, wherein the platform track is a grooved structure assembled by two rails with a “[” shape in section, the third gear meshes with the third rack, and is driven by the third hydraulic motor to drive the rack and pinion , so that the platform support and the upper platform move on the platform track as a whole, the structure of the third longitudinal movement mechanism is shown in Figure 3, and the third support rail is connected to the bottom of the platform support and connected with the third tooth The third supporting wheel straddles the third supporting rail and is connected and fixed on the upper bracket near the front end of the trolley, so as to prevent the platform support from detaching from the platform track during longitudinal movement. The length of the platform track is the same as that of the platform. The racks are the same length.

The working platform 20 is suspended and connected to both sides of the platform. Specifically, one side of the working platform is connected with a suspension frame 21 and the working platform is connected to the platform through the suspension frame. The structure of the working platform is shown in Figure 2 and Figure 4 The suspension frame is suspended and connected to both sides of the platform through the fourth longitudinal movement mechanism 200, so that the working platform moves longitudinally along the platform, and the fourth longitudinal movement mechanism includes a platform track 201 connected to the side of the platform, installed on The fourth rack in the platform track, the suspension plate 202 connected to the suspension frame and clamped in the platform track, the fourth hydraulic motor and the fourth gear fixedly connected on the suspension frame, the platform track is a concave Groove structure, two platform rails are arranged in parallel, and two rows of suspension plates are distributed in parallel at corresponding positions. The platform moves on the track, so that the working platform moves along the platform; the working platforms on both sides of the upper platform are equipped with two layers, and the working platforms on both sides of the lower platform are equipped with one layer; the working platform is connected by a transverse cylinder. There is a telescopic platform, and the telescopic platform 22 is driven by the lateral movement cylinder 23 to move laterally along the side of the working platform away from the stand. The telescopic platform is located at the front end of the working platform. At the same time, the telescopic platform is set to 4m, and the traverse distance is 0-4m, so as to meet the charging operation of different tunnel construction methods. The rear end of the working platform is provided with a ladder 24, which is convenient for construction personnel to get on and off the trolley.

The arch installation unit includes an arch assembly vehicle 31 for pre-assembly of multiple arches, an arch transport vehicle 33, a cantilever crane 35, a first longitudinal movement mechanism 32, a second longitudinal movement mechanism 34, a manipulator 36, and a working arm 37 And arch support bar 38, wherein working arm is provided with two, all upright installation is fixed on the front end of stand and is positioned at the upper surface of upper top plate, and the position of working arm is as shown in Figure 1, and described working arm comprises frame 371. Swivel assembly 372, luffing assembly 373, basic arm frame 374 and telescopic arm frame 375, wherein the frame is connected to the upper top plate, and the basic arm frame is connected to the frame through the rotary assembly and driven by the rotary assembly to move back and forth laterally , the telescopic boom is connected with the basic boom through the luffing assembly and moves back and forth in the vertical direction under the drive of the luffing assembly. A telescopic oil cylinder is installed in the telescopic boom and moves back and forth longitudinally under the drive of the telescopic oil cylinder to make the work The arm works in the direction of three degrees of freedom, and the structure of the working arm is shown in Figure 5. When the arch frame is installed, the grabbing hand attachment is connected to the working arm, so that the working arm cooperates with the manual to grab the side arches to the approximate position in turn and lean against the side wall of the tunnel.

The manipulator and the arch support bar are all installed and fixed on the telescopic platform of the work platform on both sides of the upper frame and are all positioned at the front end of the telescopic platform, the arch support bar is located on the upper telescopic platform, and the manipulator is located on the lower work platform. The manipulator has three degrees of freedom, which can realize auxiliary installation actions such as grasping and lifting of the side arch, instead of manually realizing the alignment and adjustment of the side arch and the top arch, effectively saving manpower and improving work efficiency. The arch support bar is connected with the inclined brace bar 39 by the pin shaft, when the arch frame is installed, load onto the pin shaft, the arch support bar is erected, after the arch frame installation is completed, pull out the pin shaft, and the arch support bar is laid flat , It is convenient for workers to pass and work. When the top arch and the side arch are connected to the holes, the arch support rod is used to support the top arch. The cantilever crane is arranged at the rear end of the upper platform, and the cantilever crane is used for hoisting the top arch. In this embodiment, the cantilever crane is equipped with a 1t electric hoist. The installation position of the arch installation unit on the upper frame and the working platform is shown in Figure 1, and the structure of the cantilever crane, manipulator and arch support rod is shown in Figure 6.

Both the first longitudinal movement mechanism and the second longitudinal movement mechanism are installed on the upper platform and arranged in parallel along the trolley direction, and the second longitudinal movement mechanism is located outside the upper platform, and the first longitudinal movement mechanism is located on the upper platform The inner side of the top arch assembly vehicle is installed on the first longitudinal movement mechanism and moves longitudinally through the first longitudinal movement mechanism, and the arch transport vehicle is installed on the second longitudinal movement mechanism and moves longitudinally through the second longitudinal movement mechanism. To move, in this embodiment, the second longitudinal movement mechanism 34 includes an I-shaped transport vehicle track 341, a transport vehicle support 342 straddling the transport vehicle track, and transport vehicle running wheels installed at the bottom of the transport vehicle support. , the fixedly connected second hydraulic motor and motor output shaft gear on the working arm support and the second gear fixedly connected to the traveling wheel of the transport vehicle, the transport vehicle support is fixedly connected with the arch transport vehicle, and the motor output shaft gear Mesh with the second gear, the second hydraulic motor drives the output shaft gear of the motor and the second gear to drive the arch transport vehicle to move longitudinally as a whole, the transport vehicle track is connected to the upper platform and the length of the transport vehicle track is the same as that of the upper platform Same length. The arch transport vehicle 33 includes a telescopic column 331 and an arch tightening device 332 connected to the top of the column, wherein the height of the column is adjusted by a lifting cylinder. The cantilever crane places the hoisted top arch on the arch transport vehicle, and after the arch transport vehicle longitudinally moves to the corresponding position of the top arch assembly vehicle, the height of the arch transport vehicle is lowered, so that the top arch is placed on the top arch assembly vehicle Above, the structure of the arch transport vehicle and the second longitudinal movement mechanism is shown in Figure 7.

The first longitudinal movement mechanism 32 is a double longitudinal movement structure, which can realize the overall movement of the slide rail and the top arch assembly vehicle on the upper platform, and can also realize the movement of the top arch assembly vehicle on the slide rail. The first vertical movement mechanism includes a fixed rail 321 connected and fixed on the upper surface of the upper platform, a slide rail 322 installed in the fixed rail, a first support wheel 323, a first support rail 324, and adjacent platforms installed on both sides of the slide rail. The first pulley 325 at the rear end of the car, the first rack 326 connected to the bottom of the slide rail and the fixedly connected first hydraulic motor 327 and the first gear 328 connected to the upper bracket, wherein the fixed rail is composed of two sections in the shape of " [" type rail assembled groove structure, the first gear meshes with the first rack, drives the rack and pinion through the first hydraulic motor, so that the slide rail moves on the fixed rail, and the first support rail Connected to the bottom of the slide rail and set parallel to the first rack, the first support wheel straddles the first support rail and is connected and fixed on the upper bracket near the front end of the trolley to prevent the slide rail from detaching from the fixed rail during longitudinal movement The top of the slide rail is provided with a top arch assembly vehicle track 329, the top arch assembly vehicle is installed on the top arch assembly vehicle track and moves longitudinally along the slide rail, the length of the slide rail and the top arch assembly vehicle track is the same as the length of the upper platform Consistently, the connection structure of the slide rail and other components in the first longitudinal movement mechanism is shown in Figure 8 and Figure 9 .

The top arch assembly vehicle 31 includes an arched vehicle frame 311 as a whole, an arch lifting assembly 312 and an assembly vehicle longitudinal movement assembly 313, and the vehicle frame includes a rectangular top frame 3111 at the top, and four corners of the top frame. The connected semi-arch support frame 3112 and the vertical frame 3113 connected between the two parallel support frames arranged along the direction of the trolley, the three are connected as an integrated structure, and the arch lifting components are distributed in a matrix On the top frame, there is a group of arch lifting components distributed along the direction perpendicular to the trolley, and there are more than three sets of arch lifting components. The top frame is located on both sides of the front and rear ends of the trolley. ]” type expansion joint 314, the expansion joint is provided with more than one set of arch lifting components, and the distance between the arch lifting components on the expansion joint and the arch lifting components on the top frame is adjusted through the telescopic oil cylinder. In this embodiment, three sets of arch lifting assemblies are arranged on the top frame, the distance between each group of arch lifting assemblies is 0.6m, and a set of arch lifting assemblies are respectively arranged on the telescopic joints on both sides, which are connected with the top frame. The upper and middle arch lifting components are used for the installation of the three arches. While realizing the assembly of the top three arches and the overall erection, the distance between each arch can be adjusted to 0.6m. ~1.2m, so as to meet the requirements of different working conditions. The support frame is a telescopic structure, and the height of the support frame is adjusted through the lifting cylinder B315 connected between the longitudinal frame and the longitudinal shift frame. The arch jacking assembly includes a jacking cylinder 3121 and a groove-shaped jacking piece 3122 connected to the top of the jacking cylinder. The height of the jacking piece is adjusted through the jacking cylinder. The vertical movement frame 3131 connected to the bottom of the two parallel support frames, the assembly vehicle running wheel 3132 installed at the bottom of the longitudinal movement frame, the fixedly connected fifth hydraulic motor 3133 and the motor output shaft gear installed on the side of the longitudinal movement frame And the fifth gear fixedly connected to the traveling wheel of the assembled vehicle, the traveling wheel of the assembled vehicle straddles the second longitudinal movement mechanism, the motor output shaft gear meshes with the fifth gear, and the fifth hydraulic motor drives the motor output shaft gear and the fifth gear. The gear drives and drives the arch installation vehicle to move longitudinally as a whole, and the structure of the top arch assembly vehicle is shown in Figure 10.

In the present invention, the running mechanism 4 is a tire-type or crawler-type structure. In this embodiment, the running mechanism is a tire-type structure, as shown in FIG. , The steering component can realize the functions of vertical movement, lateral movement and steering of the whole trolley through the slewing support of the driving motor. The suspension component can be automatically adjusted through the suspension cylinder to ensure that the tires are evenly stressed and can adapt to uneven road surfaces. In addition, the running mechanism can also be equipped with a crawler structure according to needs, and the crawler running mechanism has stronger load capacity and climbing ability. The supporting mechanism 5 includes a connecting seat 501, a supporting oil cylinder 502 and a supporting seat 503. When the trolley is working, it supports the ground and stabilizes the trolley. The structure of the supporting seat in this embodiment is shown in FIG. 12 .

The steps of the arch installation trolley for tunnel construction provided by the present invention are as follows: the cantilever crane at the rear end of the trolley hangs a top arch on the arch transport vehicles on both sides of the trolley, and the two The two arch transport vehicles move synchronously through the second longitudinal movement mechanism and transport the top arch to the position on the same straight line as a group of arch lifting components on the top arch assembly vehicle, and the height of the arch transport vehicle Turn down, so that the top arch is placed on a set of arch lifting components, the arch transport vehicle moves to the rear end of the trolley again, and repeat the above operation until the top arch assembly vehicle is placed with three arches. The distance between them is adjusted by telescopic joints. After the slag discharge operation in the tunnel construction is completed, move the trolley to the installation position of the arch frame and grab the side arch to the side wall through the working arm connected with the grabbing hand work attachment, and the top arch assembly vehicle passes through the first longitudinal movement The mechanism moves to the same straight line as the arch support rod, adjusts the height of the top arch assembly vehicle so that one of the top arches is placed on the arch support rod, and then grabs a side arch by the manipulator, and adjusts the alignment between the side arch and the arch support rod. The position of the top arch corresponds to the item. After the butt joint of the side arch and the top arch is completed, the arch frame and the mesh are welded manually to complete the installation of the arch frame. The third longitudinal movement mechanism and the first longitudinal movement structure of the double longitudinal movement structure can meet the requirements of the full-section method and the step method for the installation distance of the arch. In the step method, the first longitudinal movement structure of the double longitudinal movement structure can The trolley is placed in front of the construction as a whole, and the top arch assembly vehicle can be directly moved vertically to the upper step, so as to realize the installation of the upper arch on the upper step. In addition, the top arch assembly vehicle can realize the height adjustment of the arch installation through the telescopic structure support frame and the arch lifting component, so that the top arch assembly vehicle can meet the installation and construction of the arch frame with different height steps, and has strong applicability.

Claims (10)

1. An arch centering installation trolley for tunnel multi-work construction at least comprises a trolley body, an electric hydraulic system, a running mechanism and a supporting mechanism, wherein the electric hydraulic system is positioned on the trolley body and is used for providing running power for all components on the trolley body, and the running mechanism and the supporting mechanism are connected to the bottom of the trolley body, and the arch centering installation trolley is characterized in that: the vehicle body comprises two racks and a working platform, wherein the two racks are vertically arranged and are an upper rack and a lower rack respectively, the upper rack comprises an upper top plate and an upper bracket fixedly connected with the lower part of the upper top plate, the lower rack comprises a lower top plate and a lower bracket fixedly connected with the lower part of the lower top plate, the upper bracket is connected with the lower top plate through a third longitudinal moving mechanism, so that the upper rack is connected with the lower rack and longitudinally moves along the lower rack, and the working platform is connected with two sides of the racks in a hanging manner; the utility model provides a car body is last to be provided with the bow member installation unit, the bow member installation unit is including being used for the roof arch of many roof archs to assemble in advance roof arch assembly car, bow member transport vechicle, cantilever crane, first longitudinal movement mechanism, second longitudinal movement mechanism, manipulator, work arm and bow member bracing piece, first longitudinal movement mechanism and second longitudinal movement mechanism all install on the rack and along platform truck direction parallel arrangement, and the second longitudinal movement mechanism is located the outside on the rack, first longitudinal movement mechanism is located the inboard on the rack, the left and right sides both ends of roof arch assembly car all install on first longitudinal movement mechanism and through first longitudinal movement mechanism longitudinal movement, roof arch assembly car is including wholly being arched frame, bow member jack-up subassembly and the assembly car longitudinal movement subassembly, the frame is including being rectangle roof frame, the support frame that is half arch shape that is connected with the roof frame four corners and the connection between two parallel support frames that set up along the platform truck direction, the bow member jack-up subassembly is matrix and is arranged in the frame that the vertical movement mechanism is arranged in the platform truck, and the bow member is arranged in the vertical movement assembly of the frame, the manipulator is arranged in the vertical movement assembly of the frame, the platform truck is arranged in the vertical movement assembly is arranged in the vertical movement platform frame, and the vertical movement assembly is arranged in the vertical movement assembly of the frame, and the platform truck is arranged in front of the vertical movement assembly of the frame.

2. An arch centering and mounting trolley for multiple-job-practice tunnel according to claim 1, wherein: the first longitudinal moving mechanism is of a double longitudinal moving structure and comprises a fixed rail connected and fixed on the upper surface of the upper rack, a sliding rail arranged in the fixed rail, a first riding wheel, a first pulley arranged on two sides of the sliding rail and close to the rear end of the trolley, a first rack connected to the bottom of the sliding rail, and a first hydraulic motor and a first gear fixedly connected to the upper bracket, wherein the fixed rail is of a groove structure formed by assembling two steel rails with cross sections, the first gear is meshed with the first rack, the first hydraulic motor drives the gear rack to drive the sliding rail to move on the fixed rail, the first riding wheel is connected to the bottom of the sliding rail and is arranged in parallel with the first rack, and the first riding wheel straddles the first riding wheel and is connected and fixed on the upper bracket close to the front end of the trolley, so that the sliding rail is prevented from being separated from the fixed rail during longitudinal movement; the top of the sliding rail is provided with a top-arch assembling car rail, the top-arch assembling car is arranged on the top-arch assembling car rail and longitudinally moves along the sliding rail, and the lengths of the sliding rail and the top-arch assembling car rail are consistent with the length of the upper rack.

3. An arch centering and mounting trolley for multiple-job-practice tunnel according to claim 1, wherein: the arch centering jacking assembly comprises a jacking oil cylinder and a groove-shaped jacking piece connected to the top of the jacking oil cylinder, the height of the jacking piece is adjusted through the jacking oil cylinder, the assembly vehicle longitudinal moving assembly comprises a longitudinal moving frame, a assembly vehicle traveling wheel, a fifth hydraulic motor, a motor output shaft gear and a fifth gear, the longitudinal moving frame is arranged along the direction of a trolley, the longitudinal moving frame is connected to the bottoms of two parallel supporting frames, the assembly vehicle traveling wheel is arranged at the bottoms of the longitudinal moving frames, the fifth hydraulic motor is fixedly connected to the side face of the longitudinal moving frame, the fifth gear is fixedly connected to the assembly vehicle traveling wheel, the assembly vehicle traveling wheel is straddled on a second longitudinal moving mechanism, the motor output shaft gear is meshed with the fifth gear, and the fifth hydraulic motor drives the motor output shaft gear and the fifth gear to drive the arch centering installation vehicle to integrally longitudinally move.

4. An arch centering and mounting trolley for multiple-job-practice tunnel according to claim 1, wherein: expansion joints which are in a shape of a section are connected to the two sides of the front end and the rear end of the trolley through telescopic cylinders, more than one group of arch frame jacking assemblies are arranged on the expansion joints, and the distance between the arch frame jacking assemblies on the expansion joints and the arch frame jacking assemblies on the top frames is adjusted through the telescopic cylinders, so that the distance between each arch frame is adjusted; the support frame is telescopic structure, and the height of support frame is adjusted through the lift cylinder who connects between longitudinal frame and longitudinal frame.

5. An arch centering and mounting trolley for multiple-job-practice tunnel according to claim 1, wherein: the second longitudinal moving mechanism comprises an I-shaped carrier rail, a carrier support saddle straddling the carrier rail, a carrier travelling wheel arranged at the bottom of the carrier support saddle, a second hydraulic motor and a motor output shaft gear which are fixedly connected and positioned on the working arm support saddle, and a second gear which is fixedly connected on the carrier travelling wheel, wherein the carrier support saddle is fixedly connected with the arch carrier, the motor output shaft gear is meshed with the second gear, the second hydraulic motor drives the motor output shaft gear and the second gear to drive the arch carrier to integrally and longitudinally move, the carrier rail is connected on the upper rack, and the length of the carrier rail is consistent with that of the upper rack; the arch frame transport vehicle comprises an upright post with a telescopic structure and an arch frame clamping device connected to the top of the upright post, wherein the height of the upright post is adjusted through a lifting oil cylinder.

6. An arch centering and mounting trolley for multiple-job-practice tunnel according to claim 1, wherein: the upper support and the lower support are of telescopic structures and are connected with lifting cylinders in a uniformly distributed mode, so that the heights of the upper rack and the lower rack are adjusted along with the lifting cylinders.

7. An arch centering and mounting trolley for multiple-job-practice tunnel according to claim 1, wherein: the arch support rod is connected with an inclined strut through a pin shaft, so that the arch support rod can be conveniently laid flat and erected.

8. An arch centering and mounting trolley for multiple-job-practice tunnel according to claim 1, wherein: the third longitudinal moving mechanism comprises a rack rail connected and fixed on the lower top plate, a rack support, a third supporting wheel, a third supporting rail, a third pulley, a third rack, a third hydraulic motor and a third gear, wherein the rack support is connected and fixed on the bottom of the upper support, the rack support is installed in the rack rail, the third supporting wheel is installed in the rack rail, the third pulley is installed on two sides of the rack support and close to the rear end of the trolley, the third rack is connected to the bottom of the rack support, the third hydraulic motor is connected to the upper support and fixedly connected with the third gear, the rack rail is of a groove structure assembled by two steel rails with cross sections of being "[", the third gear is meshed with the third rack, the rack support and the upper rack are driven by the third hydraulic motor to move integrally on the rack rail, the third supporting rail is connected to the bottom of the rack support and is parallel to the third rack, the third supporting wheel is straddled on the third supporting rail and is connected and fixed on the upper support close to the front end of the trolley, the rack rail is prevented from being separated from the rack rail when the rack support is longitudinally moved, and the length of the rack rail is consistent with the rack rail.

9. An arch centering and mounting trolley for multiple-job-practice tunnel according to claim 1, wherein: the two working arms are arranged and are both arranged on the upper surface of the upper top plate in a positive way; the working arm comprises a frame, a rotation component, a luffing component, a basic arm support and a telescopic arm support, wherein the frame is connected with the upper top plate, the basic arm support is connected with the frame through the rotation component and moves back and forth along the transverse direction under the drive of the rotation component, the telescopic arm support is connected with the basic arm support through the luffing component and moves back and forth along the vertical direction under the drive of the luffing component, and a telescopic oil cylinder is arranged in the telescopic arm support and moves back and forth along the longitudinal direction under the drive of the telescopic oil cylinder, so that the working arm works in the three-degree-of-freedom direction.

10. An arch centering and mounting trolley for multiple-job-practice tunnel according to claim 1, wherein: the working platform is characterized in that one side of the working platform is connected with a hanging frame, the working platform is connected with a rack through the hanging frame, the hanging frame is connected to two sides of the rack through a fourth longitudinal moving mechanism in a hanging manner, the working platform longitudinally moves along the rack, the fourth longitudinal moving mechanism comprises a platform rail connected to the side face of the rack, a fourth rack installed in the platform rail, a hanging disc which is connected to the hanging frame in a distributed manner and is clamped in the platform rail, a fourth hydraulic motor and a fourth gear which are fixedly connected and positioned on the hanging frame, the platform rail is of a groove structure, two parallel arranged platform rails are arranged, two rows of hanging discs are distributed in parallel at corresponding positions, and the fourth gear is meshed with the fourth rack and is driven by the fourth hydraulic motor to move on the platform rail, so that the working platform moves along the rack; the telescopic platform is arranged on the working platform in a connecting mode through the transverse moving oil cylinder, and is driven by the transverse moving oil cylinder to transversely move along one side, far away from the rack, of the working platform, the telescopic platform is located at the front end of the working platform, a frame ladder is arranged at the rear end of the working platform, and workers can conveniently go up and down the trolley.