A tunnel comprehensive trolley mounted with arch frame

Abstract

The application provides a tunnel comprehensive trolley for tunnel arch installation, which comprises a trolley frame matched with the contour of the tunnel, a running mechanism, a transverse moving and lifting mechanism, an arch installation mechanism and an auxiliary mechanism installed on the trolley frame; the trolley frame is a double-layer structure, comprising a portal in the lower layer and a movable support in the upper layer, the internal clearance of the portal ensures the passing requirement of conventional vehicles, the movable support moves relative to the portal, and the bottom of the movable support is provided with front supporting legs capable of stretching and turning over; the arch installation mechanism comprises a lifting mechanism, a lifting mechanism, a carrying trolley and an installation trolley. The application can integrate multiple functions such as auxiliary tunnel rock drilling and arch installation into one, facilitates workers to charge explosives and facilitates other process equipment to pass below the portal, greatly improves the efficiency of the drill-and-blast method tunnel excavation, reduces the equipment procurement cost and maintenance cost of tunnel construction, and saves time and labor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel face construction, in particular to a multifunctional excavation platform integrating functions of excavation and arch installation. BACKGROUND

[0002] In the conventional drill-and-blast method of tunnel construction, various equipment such as tunnel rock drilling platform, support arch installation platform and personnel operation platform are required at the construction face at the front end of the tunnel, and the above equipment is suitable for different construction procedures of the tunnel construction. The conventional drill-and-blast method of tunnel construction has the following defects: (1) when a construction procedure is completed, the corresponding equipment needs to be withdrawn from the excavation face at the front end of the tunnel, and the construction equipment of the next procedure needs to be brought into the construction face at the front end of the tunnel, resulting in a long auxiliary time for equipment transfer and affecting the work efficiency; (2) when the surrounding rock is poor in integrity and the width of the tunnel cross section is limited, the tunnel is excavated in two steps, and the general equipment cannot meet the requirements.

[0003] To solve the above problems, the present application provides a tunnel comprehensive platform integrating arch installation, which integrates functions of excavation and arch installation. SUMMARY

[0004] The present application provides a tunnel comprehensive platform integrating arch installation for drill-and-blast method of tunnel construction, which integrates various functions such as auxiliary tunnel rock drilling and arch installation, facilitates workers to load explosives, and facilitates other procedure equipment to pass under the portal, thereby greatly improving the efficiency of drill-and-blast method of tunnel excavation, reducing the equipment procurement cost and maintenance cost of tunnel construction, and saving time and labor.

[0005] The technical scheme adopted by the present application to achieve the above-mentioned purposes is as follows:

[0006] A tunnel comprehensive platform integrating arch installation, comprising a portal adapted to the contour of the tunnel, and a running mechanism, a transverse moving and lifting mechanism, an arch installation mechanism and an auxiliary mechanism installed on the portal;

[0007] The portal is a double-layer structure comprising a portal at the lower layer and a movable support at the upper layer. The portal is a portal support structure, and the internal clearance of the portal ensures the passing requirements of conventional vehicles. The bottom of the movable support is connected to the top of the portal through a bearing track, and the top of the portal is provided with a first driving mechanism. The first driving mechanism drives the movable support to move relative to the portal through a first chain and sprocket mechanism. The bottom of the front end of the movable support is provided with a front leg capable of being extended and turned over.

[0008] The horizontal moving lifting mechanism is distributed at four corners of the platform and is installed on the outside of the portal frame, and the horizontal moving lifting mechanism comprises a horizontal moving mechanism at the lower part and a telescopic column at the upper part, which are fixedly connected in sequence, wherein the bottom of the horizontal moving mechanism is supported on the ground, and the top of the telescopic column is fixedly connected with the end of the portal frame; a horizontal moving oil cylinder is arranged in the horizontal moving mechanism, and the whole trolley is adjusted to be on the center line of the tunnel through the horizontal adjustment of the horizontal moving oil cylinder; a jacking oil cylinder is arranged in the telescopic column, and the whole trolley is adjusted to be raised and lowered through the up-down telescopic adjustment of the jacking oil cylinder.

[0009] The arch mounting mechanism comprises a lifting mechanism, a lifting mechanism, a carrying trolley and a mounting trolley, wherein the lifting mechanism is located at the rear end of the movable support and is symmetrically arranged along the center line of the tunnel, the lifting mechanism is used for lifting the arch from the horizontal state on the ground to the vertical state, and further lifting to the lifting mechanism; the lifting mechanism is two groups, which are symmetrically installed on the rear end of the portal frame, and is used for lifting the arch from the low position to the high position, and further transferring to the carrying trolley; the carrying trolley is two groups, which are symmetrically distributed on the carrying trolley track arranged on both sides of the movable support, and the carrying trolley moves along the carrying trolley track to transfer the arch from the lifting mechanism to the mounting trolley; the mounting trolley is arranged on the mounting trolley track arranged on the upper part of the movable support, and the mounting trolley comprises a mounting trolley frame, a third driving mechanism fixedly connected to the mounting trolley frame, an adjusting frame and a telescopic frame, the third driving mechanism drives the mounting trolley to move back and forth along the mounting trolley track; the adjusting frame is located on the upper part of the mounting trolley frame and is used for adjusting the position of the arch in the tunnel ring direction to ensure the centering of the arch; the telescopic frame is two groups, which are symmetrically arranged on both sides of the mounting trolley frame along the center line of the tunnel, and different arch mounting spacings are realized by adjusting the telescopic frame.

[0010] The auxiliary mechanism comprises a working platform and a ladder installed on the platform.

[0011] The portal frame comprises a bottom beam, a column and an upper cross beam, the bottom beam is provided with two left and right bottom beams which are arranged along the longitudinal direction, the column is vertically fixed on the bottom beam, and the upper cross beam is transversely connected and fixed between the top parts of the two adjacent columns on the left and right sides to form a portal structure, the transverse supports are arranged between the front and rear adjacent upper cross beams to increase the stability of the portal frame, and the scissors supports are arranged between the front and rear adjacent columns to increase the stability of the portal frame.

[0012] The movable support comprises a front support leg, four groups of arch-shaped supports and a longitudinal beam, the four groups of arch-shaped supports are arranged at intervals and are fixedly connected to form a whole through the longitudinal beam, the bottom of the arch-shaped support is provided with a running beam arranged along the longitudinal direction, and the running beam is located on the bearing track and moves along the bearing track; the front support leg is provided with two left and right front support legs which are fixedly connected through a transverse support, the front support leg is a telescopic sleeve structure, a telescopic oil cylinder is arranged in the front support leg, the top of the front support leg is hingedly installed on the movable support, and a turnover oil cylinder is arranged between the front support leg and the movable support to enable the front support leg to turn over forward and backward.

[0013] The carrying track is provided with two groups of left and right groups fixed to the upper cross beam in the portal frame, is of a box structure, and is internally provided with five groups of towing wheels; the upper edges of the carrying track are provided with flange plates on the left and right sides; the upper surface of the carrying track is provided with openings corresponding to the towing wheels, through which the outer edges of the towing wheels extend; and the movable support is carried on the towing wheels through the running beam.

[0014] The first driving mechanism and the first chain and sprocket mechanism are mounted on the upper cross beam in the portal frame; the first chain and sprocket mechanism is provided with two groups; the first chain and sprocket mechanism is arranged along the longitudinal direction; the bottom of the movable support is fixedly connected with the chain through the connecting piece; the first driving mechanism is connected with the driving sprocket of the two groups of first chain and sprocket mechanisms through the two output shafts of the speed reducer and drives the same, so as to drive the movement of the chain and further drive the movement of the movable support.

[0015] The running mechanism is provided with four groups, which are distributed at the four corners of the portal frame and are installed below the bottom beams; the running mechanism adopts a press-fit tire running; each group of running mechanism comprises two tires, a second driving mechanism and a second chain and sprocket mechanism; the second driving mechanism is located at the middle position between the two tires; the tire is driven to rotate through the second chain and sprocket mechanism, so as to drive the whole trolley to move forward or backward.

[0016] The transverse lifting mechanism is provided with four groups, which are distributed at the front and rear ends of the two bottom beams in the portal frame; the transverse lifting mechanism comprises a base, a counter-hanging plate, a transverse oil cylinder seat and a transverse oil cylinder; the base supports on the ground during work; the transverse oil cylinder seat is placed on the top surface of the base; the transverse oil cylinder is horizontally installed and its two ends are connected with the base and the transverse oil cylinder seat respectively; each base is provided with two counter-hanging plates; the lower part of the counter-hanging plate is connected with the base through bolts, and the upper part presses the transverse oil cylinder seat on the top surface of the base, so as to ensure that the transverse oil cylinder does not deviate when pushing the transverse oil cylinder seat to move on the base;

[0017] The telescopic column comprises a telescopic inner sleeve, a telescopic outer sleeve and a jacking oil cylinder; the lower part of the telescopic inner sleeve is connected with the top surface of the transverse oil cylinder seat through bolts, so as to ensure that the telescopic column can move together with the transverse oil cylinder when the transverse oil cylinder pushes the transverse oil cylinder seat to move; the telescopic outer sleeve and the main body of the telescopic inner sleeve are both of a square tube structure; the jacking oil cylinder is installed in the square tube of the telescopic inner sleeve; the telescopic inner sleeve is installed in the telescopic outer sleeve; the two ends of the jacking oil cylinder are connected with the telescopic inner sleeve and the telescopic outer sleeve respectively, so as to realize the relative sliding between the telescopic outer sleeve and the telescopic inner sleeve through the jacking oil cylinder; the outer side of the telescopic outer sleeve is provided with a flange connected with the end of the bottom beam, so as to realize the movement of the portal frame following the telescopic outer sleeve.

[0018] The lifting mechanism comprises a winch, a telescopic sleeve, a pulley block and a lifting hook, the pulley block is installed on both ends of the telescopic sleeve, and the structure of the telescopic sleeve can adjust the distance of the pulley block to adapt to different working requirements.

[0019] The lifting mechanism comprises a guide frame, a lifting trolley, a fourth driving mechanism and a fourth chain and sprocket mechanism, the guide frame is a double-groove steel reverse buckle, the middle gap of the double-groove steel ensures that the chain of the fourth chain and sprocket mechanism can pass freely; the upper and lower ends of the lifting trolley are connected with the chain respectively, the fourth driving mechanism drives the fourth chain and sprocket mechanism to realize the up-and-down movement of the lifting trolley along the guide frame, and the steel arch frame is lifted from the low position to the high position; the running track of the lifting trolley is the double-groove steel structure of the guide frame, four running wheels are symmetrically installed on the outer side of the double-groove steel of a single lifting trolley, and four guide wheels are installed in the middle gap of the double-groove steel structure to prevent the lifting trolley from deviating.

[0020] The carrying trolley comprises a carrying trolley frame, a longitudinal conveying device, a longitudinal conveying track, a jacking mechanism, a fifth driving mechanism and a fifth chain and sprocket mechanism, the longitudinal conveying device is divided into two parts, the upper part is an arch frame fixing device, the length of the adjusting screw is adjusted to fix the arch frame, and the lower part is a wheel group arranged on the longitudinal conveying track, so that the longitudinal conveying device can move along the longitudinal conveying track; the jacking mechanism is located below the longitudinal conveying track, the jacking mechanism is an inner and outer sleeve structure, comprising an inner sleeve, an outer sleeve and an oil cylinder connecting the inner sleeve and the outer sleeve, the upper part of the inner sleeve is connected with the lower part of the longitudinal conveying track, and the lower part of the outer sleeve is connected with the carrying trolley frame, so that the jacking mechanism can realize the relative movement of the inner and outer sleeves to adjust the height of the longitudinal conveying track; the carrying trolley frame is located on the carrying trolley track, the fifth driving mechanism drives the carrying trolley frame to move through the fifth chain and sprocket mechanism, so that the whole carrying trolley moves along the carrying trolley track arranged on the movable support.

[0021] The adjusting frame in the mounting trolley is arranged at the center line of the trolley, and the adjusting frame comprises an adjusting longitudinal beam, a swing jacking device, a swing oil cylinder and an arch frame fixing device; the longitudinal beam is a square tube structure, a plurality of flanges are distributed on the side edge of the longitudinal beam, and the lower part of the longitudinal beam is connected with the mounting trolley frame through a hinge lug; the swing jacking device is provided with four groups and is installed on the flanges on the side edge of the longitudinal beam, different arch frame installation distances are realized by adjusting the installation position of the swing jacking device on the flanges of the longitudinal beam; the swing jacking device is an inner and outer sleeve structure, comprising an inner sleeve, an outer sleeve and an oil cylinder connecting the inner sleeve and the outer sleeve, and the relative movement of the inner and outer sleeves can be realized; the arch frame fixing device is located at the top of the swing jacking device and is connected with the inner sleeve of the swing jacking device, the arch frame fixing device comprises two ear plates with a spacing suitable for the outer shape size of the arch frame and a screw rod with a length that can be adjusted to fix the arch frame; the two ends of the swing oil cylinder are connected with the mounting trolley frame and the longitudinal beam respectively, the swing oil cylinder is provided with two groups and is distributed at the front and rear ends of the longitudinal beam, and the extension and contraction of the swing oil cylinder can drive the whole adjusting frame to rotate around the hinge lug at the lower part of the longitudinal beam.

[0022] The telescopic frame in the mounting trolley comprises telescopic longitudinal beams and telescopic jacking devices and arch fixing devices, flanges are uniformly distributed on the top edges of the telescopic longitudinal beams, the arch fixing devices are installed on the telescopic longitudinal beams through the flanges, different arch installation spacings are realized by changing the installation positions of the arch fixing devices on different flanges of the telescopic longitudinal beams; the telescopic jacking devices are provided with two groups, which are inner and outer sleeve structures, and comprise an inner sleeve, an outer sleeve and an oil cylinder connecting the inner sleeve and the outer sleeve, the relative movement of the inner and outer sleeves can be realized, the outer sleeve is connected with the trolley frame, and the inner sleeve is connected with the bottom edges of the telescopic longitudinal beams.

[0023] A telescopic platform is arranged below the working platform arranged at the side of the gantry, the telescopic platform is supported and connected with the working platform and can be pushed out from below the working platform through a platform oil cylinder.

[0024] Compared with the prior art, the tunnel comprehensive trolley provided by the present application has the following advantages: 1. The tunnel comprehensive trolley provided by the present application integrates tunnel excavation and support, can realize auxiliary artificial air gun drilling, anchor rod installation and grouting, arch net installation and the like, improves construction efficiency, reduces labor intensity of workers, and reduces costs of tunnel construction supporting machinery and maintenance costs. 2. The tunnel comprehensive trolley provided by the present application can meet two tunnel construction processes of full-face method and bench method through forward movement of the movable support. 3. The tunnel comprehensive trolley provided by the present application can not exit the tunnel excavation face when discharging slag, and can perform anchor rod installation and grouting, arch net installation and the like at the same time, so that work efficiency is high. 4. The tunnel comprehensive trolley provided by the present application can realize simultaneous installation of multiple arches with different spacings through adjustment of the flange installation positions, so that work efficiency is high. 5. The tunnel comprehensive trolley provided by the present application is provided with a hidden telescopic platform at the side wall, which saves space when hidden, facilitates equipment passing, increases operation area when extended, facilitates worker operation, and can push the arch at the side wall outward to fit the designed section during arch installation, so that various work requirements can be met. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 FIG. 4 is a side view of the tunnel comprehensive trolley provided by the present application;

[0026] Figure 2 FIG. 5 is a front view of the tunnel comprehensive trolley provided by the present application;

[0027] Figure 3 FIG. 6 is a sectional view of a running mechanism of the tunnel comprehensive trolley provided by the present application;

[0028] Figure 4Side view of the running mechanism of the tunnel comprehensive trolley with the arch mounting frame installed according to the present application;

[0029] Figure 5 Front view of the transverse lifting mechanism of the tunnel comprehensive trolley with the arch mounting frame installed according to the present application;

[0030] Figure 6 Side view of the transverse lifting mechanism of the tunnel comprehensive trolley with the arch mounting frame installed according to the present application;

[0031] Figure 7 Arch structure diagram of the tunnel comprehensive trolley with the arch mounting frame installed according to the present application;

[0032] Figure 8 Side view of the movable support of the tunnel comprehensive trolley with the arch mounting frame installed according to the present application;

[0033] Figure 9 Front view of the movable support of the tunnel comprehensive trolley with the arch mounting frame installed according to the present application;

[0034] Figure 10 Arch lifting mechanism structure diagram of the tunnel comprehensive trolley with the arch mounting frame installed according to the present application;

[0035] Figure 11 Front view of the arch lifting mechanism of the tunnel comprehensive trolley with the arch mounting frame installed according to the present application;

[0036] Figure 12 Side view of the arch lifting mechanism of the tunnel comprehensive trolley with the arch mounting frame installed according to the present application;

[0037] Figure 13 Arch carrying trolley structure diagram of the tunnel comprehensive trolley with the arch mounting frame installed according to the present application;

[0038] Figure 14 Front view of the arch mounting trolley of the tunnel comprehensive trolley with the arch mounting frame installed according to the present application;

[0039] Figure 15 Plan view of the arch mounting trolley of the tunnel comprehensive trolley with the arch mounting frame installed according to the present application;

[0040] Figure 16 Side view of the arch mounting trolley of the tunnel comprehensive trolley with the arch mounting frame installed according to the present application;

[0041] Figure 17 Arch fixing device schematic diagram of the tunnel comprehensive trolley with the arch mounting frame installed according to the present application;

[0042] Figure 18 Work platform schematic diagram of the tunnel comprehensive trolley with the arch mounting frame installed according to the present application;

[0043] Figure 19 Figure 1 is a schematic view of the telescopic platform of the tunnel comprehensive trolley mounted with the arch installation frame according to the present application;

[0044] In the figure: 1 - running mechanism, 11 - press-fit tire, 12 - second driving mechanism, 13 - second chain and sprocket mechanism; 2 - transverse lifting mechanism, 211 - base, 212 - counter-hanging plate, 213 - transverse oil cylinder seat, 214 - transverse oil cylinder, 221 - telescopic inner sleeve, 222 - telescopic outer sleeve, 223 - jacking oil cylinder; 3 - portal frame, 31 - bottom beam, 32 - upright column, 33 - upper cross beam; 4 - movable support, 41 - arch support, 42 - longitudinal beam, 43 - bearing track, 44 - towing wheel, 45 - counter-hanging wheel, 46 - front leg, 47 - first driving mechanism; 5 - installation trolley, 51 - third driving mechanism, 52 - installation trolley frame, 53 - adjusting frame, 531 - swing jacking device, 532 - adjusting longitudinal beam, 533 - swing oil cylinder, 534 - arch frame fixing device, 5341 - lug plate, 5342 - screw rod, 54 - telescopic frame; 6 - carrying trolley, 61 - longitudinal conveying device, 62 - longitudinal conveying track, 63 - jacking mechanism, 64 - fifth driving mechanism, 65 - carrying trolley track; 7 - lifting mechanism, 71 - winch, 72 - telescopic sleeve, 73 - pulley block; 8 - lifting mechanism, 81 - guide frame, 82 - lifting trolley, 83 - fourth driving mechanism, 821 - running wheel, 822 - guide wheel; 10 - auxiliary mechanism, 101 - platform oil cylinder, 102 - working platform, 103 - telescopic platform, 1031 - oil cylinder connecting lug plate, 1032 - frame, 1033 - guide column. DETAILED DESCRIPTION

[0045] The present application will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present application is not limited to the following embodiments.

[0046] The tunnel comprehensive trolley provided by the present application is provided with an arch installation frame, and the overall structure thereof is shown in Figure 1 and Figure 2 The tunnel comprehensive trolley provided by the present application is provided with an arch installation frame, and the overall structure thereof is shown in

[0047] The portal frame is a portal frame structure, as shown in Figure 7The internal clearance of the portal ensures the passing requirement of a regular vehicle; the portal comprises a bottom beam 31, vertical columns 32 and upper cross beams 33, the bottom beam is provided with two bottom beams arranged longitudinally, the vertical columns are vertically fixed on the bottom beam, and the upper cross beams are transversely connected and fixed between the top portions of two adjacent vertical columns on the left and right sides and jointly form a portal structure, cross braces are arranged between the upper cross beams adjacent to each other in front and back to increase the stability of the portal, and shear braces are arranged between the vertical columns adjacent to each other in front and back to increase the stability of the portal.

[0048] The structure of the mobile support is shown in Figure 8 and Figure 9 The bottom of the mobile support is connected with the top of the portal through a bearing track, the top of the portal is provided with a first driving mechanism 47, the first driving mechanism drives the mobile support to move relative to the portal through a first chain and sprocket mechanism, and the bottom of the front end of the mobile support is provided with front legs capable of being extended and turned over. Specifically, the mobile support comprises front legs 46, four groups of arch-shaped supports 41 and longitudinal beams 42, the four groups of arch-shaped supports are arranged at intervals and connected and fixed as a whole through the longitudinal beams, the bottom of the arch-shaped support is provided with a running beam arranged longitudinally, and the running beam is located on the bearing track 43 and moves along the bearing track.

[0049] The front legs 46 are provided with two front legs arranged on the left and right sides and connected and fixed through a cross brace, the front legs are of an extension sleeve structure, an extension oil cylinder is arranged in the front legs, the top of the front legs is hingedly installed on the mobile support, and a turning oil cylinder capable of turning the front legs forward and backward is arranged between the front legs and the mobile support. When the step method is used for construction, the front legs 46 are extended and supported on the upper step ground, so that the stability of the whole equipment during the construction of the upper step is ensured; when the full-face method is used for construction, the front legs 46 can be retracted, and the lower clearance of the trolley is not affected.

[0050] The bearing track 43 is provided with two groups of bearing tracks fixed on the upper cross beams in the portal, the bearing track is of a box type structure, five groups of towing wheels 44 are arranged in the bearing track, flange plates are arranged on the left and right sides of the upper edge of the bearing track, openings are arranged on the upper surface of the bearing track at positions corresponding to the towing wheels, the mobile support is wholly borne on the towing wheels through the running beam, and the bottom of the arch-shaped support is provided with two groups of counter-hung wheels 45, each group of counter-hung wheels is located on the left and right sides of the bearing track, and the flanges of the counter-hung wheels are close to the lower surfaces of the flange plates in the bearing track, so that the mobile support is prevented from deviating during movement on the bearing track.

[0051] The first driving mechanism 47 and the first chain sprocket mechanism are mounted on the upper cross beam in the portal frame, the first chain sprocket mechanism is provided with two groups, the first chain sprocket mechanism is arranged along the longitudinal direction, the bottom of the movable support is fixedly connected with the chain through a connecting piece, and the first driving mechanism is connected with the driving sprocket in the two groups of the first chain sprocket mechanism through two output shafts of a speed reducer respectively and drives the driving sprocket, so that the movement of the chain is driven and the movable support is further driven to move.

[0052] The walking mechanism is distributed at the four corners of the portal frame and is mounted below the bottom beams, and the walking mechanism adopts a press-fit tire 11 to walk, each group of the walking mechanism includes two tires, a second driving mechanism 12 and a second chain sprocket mechanism 13, the second driving mechanism is located at the middle position between the two tires, the tire is driven to rotate through the second chain sprocket mechanism, and the whole trolley is driven to move forward or backward. Figure 3 Figure 4 The walking mechanism is distributed at the four corners of the portal frame and is mounted below the bottom beams, and the walking mechanism adopts a press-fit tire 11 to walk, each group of the walking mechanism includes two tires, a second driving mechanism 12 and a second chain sprocket mechanism 13, the second driving mechanism is located at the middle position between the two tires, the tire is driven to rotate through the second chain sprocket mechanism, and the whole trolley is driven to move forward or backward.

[0053] The transverse moving and lifting mechanism is distributed at the four corners of the portal frame, is provided with four groups and is mounted on the outer side of the portal frame, and is specifically located at the front and rear ends of the two bottom beams in the portal frame. Figure 5 Figure 6 The transverse moving and lifting mechanism is distributed at the four corners of the portal frame, is provided with four groups and is mounted on the outer side of the portal frame, and is specifically located at the front and rear ends of the two bottom beams in the portal frame.The transverse moving and lifting mechanism includes a transverse moving mechanism located below and a telescopic column located above, the bottom of the transverse moving mechanism is supported on the ground, and the top of the telescopic column is connected and fixed with the end of the portal frame; the transverse moving mechanism is provided with a transverse moving oil cylinder, the whole trolley is located on the tunnel center line through transverse adjustment of the transverse moving oil cylinder; the transverse moving mechanism includes a base 211, an inverted hanging plate 212, a transverse moving oil cylinder seat 213 and a transverse moving oil cylinder 214, the base is supported on the ground during work, the transverse moving oil cylinder seat is placed on the top surface of the base, the transverse moving oil cylinder is horizontally installed and is connected with the base and the transverse moving oil cylinder seat at two ends respectively, each base is provided with two inverted hanging plates, the lower part of the inverted hanging plate is connected with the base through a bolt, and the upper part presses the transverse moving oil cylinder seat on the top surface of the base, so that the transverse moving oil cylinder is prevented from deviating when the transverse moving oil cylinder pushes the transverse moving oil cylinder seat to move on the base.

[0054] The telescopic column is provided with a jacking oil cylinder in the inside, the whole trolley is adjusted to rise and fall through up-down telescopic adjustment of the jacking oil cylinder; the telescopic column includes a telescopic inner sleeve 221, a telescopic outer sleeve 222 and a jacking oil cylinder 223, the lower part of the telescopic inner sleeve is connected with the top surface of the transverse moving oil cylinder seat through a bolt, so that the telescopic column can move together with the transverse moving oil cylinder when the transverse moving oil cylinder pushes the transverse moving oil cylinder seat to move; the main bodies of the telescopic outer sleeve and the telescopic inner sleeve are all square tube structures, the jacking oil cylinder is installed in the square tube of the telescopic inner sleeve, and the telescopic inner sleeve is installed in the telescopic outer sleeve; the two ends of the jacking oil cylinder are connected with the telescopic inner sleeve and the telescopic outer sleeve respectively, and the relative sliding between the telescopic outer sleeve and the telescopic inner sleeve is realized through the jacking oil cylinder; the outer side of the telescopic outer sleeve is provided with a flange connected with the end of the bottom beam, so that the portal frame moves with the telescopic outer sleeve. ​

[0055] The arch frame installation mechanism includes a lifting mechanism 7, a hoisting mechanism 8, a transport trolley 6, and an installation trolley 5, wherein the lifting mechanism is as follows: Figure 10 As shown, two sets of lifting mechanisms are symmetrically arranged along the centerline of the tunnel at the rear end of the mobile support. The lifting mechanism is used to lift the arch frame from a horizontal state on the ground to a vertical state, and further lift it onto the hoisting mechanism. The lifting mechanism includes a winch 71, a telescopic sleeve 72, a pulley block 73 and a hook. The pulley block is installed on both ends of the telescopic sleeve. The telescopic sleeve structure can adjust the spacing of the pulley block to adapt to different working requirements.

[0056] Lifting mechanisms such as Figure 11 and Figure 12 As shown, there are two sets of these mechanisms, symmetrically installed on the rear end of the gantry, used to lift the arch frame from a low position to a high position and further transfer it to the transport trolley. The lifting mechanism includes a guide frame 81, a lifting trolley 82, a fourth drive mechanism 83, and a fourth chain sprocket mechanism. The guide frame structure is a double-channel steel structure with a reverse interlocking design. The gap in the middle of the double channel steel allows the chain of the fourth chain sprocket mechanism to pass freely. The upper and lower ends of the lifting trolley are connected to the chain, and the fourth drive mechanism drives the fourth chain sprocket mechanism to move the lifting trolley up and down along the guide frame, lifting the steel arch frame from a low position to a high position. The running track of the lifting trolley is the double channel steel structure of the guide frame. Each lifting trolley has four traveling wheels 821 symmetrically installed on the outside of the double channel steel, and four guide wheels 822 are installed in the gap in the middle of the double channel steel structure to prevent the lifting trolley from deviating.

[0057] Handling carts, such as Figure 13 As shown, there are two sets of symmetrically distributed transport trolley tracks 65 on both sides of the movable support. The transport trolleys move along the transport trolley tracks to transfer the arch frame from the lifting mechanism to the installation trolley. The transport trolley includes a transport trolley frame, a longitudinal conveying device 61, a longitudinal conveying track 62, a lifting mechanism 63, a fifth drive mechanism 64, and a fifth chain and sprocket mechanism. The longitudinal conveying device is divided into two parts: the upper part is an arch frame fixing device, which fixes the arch frame by adjusting the length of the screw; the lower part is a wheel set arranged on the longitudinal conveying track, which can realize the longitudinal conveying device. The trolley moves along the longitudinal conveying track. The lifting mechanism is located below the longitudinal conveying track and has an inner and outer sleeve structure, including an inner sleeve, an outer sleeve, and a hydraulic cylinder connecting the inner sleeve and the outer sleeve. The upper part of the inner sleeve is connected to the lower part of the longitudinal conveying track, and the lower part of the outer sleeve is connected to the trolley frame. The lifting mechanism can realize relative movement between the inner and outer sleeves to adjust the height of the longitudinal conveying track. The trolley frame is located on the trolley track. The fifth drive mechanism drives the trolley frame to move through the fifth chain and sprocket mechanism, so that the entire trolley moves along the trolley track laid on the movable support.

[0058] The mounting trolley 5 is located on the mounting trolley track set on the upper part of the movable support. The structure of the mounting trolley is as follows:Figure 14 , Figure 15 and Figure 16 As shown, the installation includes a trolley frame 52 and a third drive mechanism 51, an adjustment frame 53, and a telescopic frame 54 fixedly connected to the trolley frame. The third drive mechanism drives the installation trolley to move back and forth along the trolley track. The adjustment frame is located on the upper part of the trolley frame and is used to adjust the position of the arch frame in the tunnel circumferential direction to ensure that the arch frame is centered. The adjustment frame is arranged at the center line of the trolley and includes an adjustment longitudinal beam 532, a swing lifting device 531, a swing cylinder 533, and an arch frame fixing device 534. The longitudinal beam is a square tube. The structure has multiple flanges distributed on its sides, and its lower part is connected to the mounting trolley frame via hinges. Four sets of swing jacking devices are installed on the flanges on the sides of the longitudinal beams. Different arch frame installation spacings are achieved by adjusting the installation position of the swing jacking devices on the longitudinal beam flanges. The swing jacking device has an inner and outer sleeve structure, including an inner sleeve, an outer sleeve, and a hydraulic cylinder connecting the inner and outer sleeves, enabling relative movement between the inner and outer sleeves. The arch frame fixing device is located at the top of the swing jacking device and is connected to the inner sleeve of the swing jacking device according to specifications. The arch frame fixing device is as follows... Figure 17 As shown, it includes two ear plates 5341 with a spacing adapted to the outer dimensions of the arch frame, and a screw 5342 that can be adjusted to extend to fix the arch frame; the two ends of the swing cylinder are respectively connected to the mounting trolley frame and the longitudinal beam. There are two sets of swing cylinders, distributed at the front and rear ends of the longitudinal beam. The extension and retraction of the swing cylinder can drive the entire adjustment frame to rotate around the hinge at the bottom of the longitudinal beam.

[0059] There are two sets of telescopic frames, symmetrically arranged on both sides of the installation trolley frame along the tunnel centerline. Different arch frame installation spacings are achieved by adjusting the telescopic frames. The telescopic frame includes a telescopic longitudinal beam, a telescopic lifting device, and an arch frame fixing device. Multiple flanges are evenly distributed on the top edge of the telescopic longitudinal beam. The arch frame fixing device is installed on the telescopic longitudinal beam through the flanges. Different arch frame installation spacings are achieved by changing the installation position of the arch frame fixing device on different flanges of the telescopic longitudinal beam. There are two sets of telescopic lifting devices, which are inner and outer sleeve structures, including an inner sleeve, an outer sleeve, and a hydraulic cylinder connecting the inner and outer sleeves. This allows for relative movement between the inner and outer sleeves. The outer sleeve is connected to the installation trolley frame, and the inner sleeve is connected to the bottom edge of the telescopic longitudinal beam.

[0060] Before construction, the adjusting frame in the middle and the telescopic frames on both sides of the installation trolley are adjusted according to the installation interval of different arches in the design requirements, so that when the installation trolley carries multiple arches, the interval between the arches is consistent with the design requirements, and the interval between the arches does not need to be adjusted again during installation. When adjusting the position of the arch in the tunnel, the screw rod of the arch fixing device is loosened, and the arch can move freely along the ring at this time. After adjustment, the screw rod of the arch fixing device is tightened to fix the arch and prevent the arch from shaking during transportation. During adjustment, the angle of the adjusting frame can be changed by the swing oil cylinder to complete the adjustment of the position of the arch in the ring. After the installation arch is carried to the predetermined position, the middle adjusting frame and the telescopic frame on both sides are lifted by the telescopic sleeve to lift the installation arch to the installation position for arch installation operation.

[0061] The auxiliary mechanism 10 includes a working platform 102 mounted on the gantry and a ladder. The lower part of the working platform arranged on the side of the gantry is provided with a telescopic platform 101, as shown in Figure 18 and Figure 19 The telescopic platform is supported and connected with the working platform, and can be pushed out from below the working platform by the platform oil cylinder 103. The main body of the telescopic platform is a rack 1032, guide columns 1033 are arranged on both sides of the rack, and an oil cylinder connecting lug plate 1031 is arranged at the rear end of the rack. The hidden telescopic platform saves space when hidden, facilitates equipment passage, and when extended, on the one hand, it increases the operation area and facilitates worker operation, and on the other hand, it can push the arch at the side wall outward to fit the design section during arch installation, which can meet various work requirements.

[0062] The full-face construction arches described in the application are divided into 5 segments, and adjacent segments are connected by bolts. During construction, the three arch segments at the vault are tightly connected, and the two segments at the side wall of the tunnel and the segment at the vault are movably connected at the beginning of installation, so that the two segments at the side wall can naturally sag and do not occupy the construction position at the side wall of the tunnel. After the arches at the vault of the tunnel are installed, the arches at the side wall are installed, and at this time, the telescopic platform is extended by the oil cylinder, the outer edge of the telescopic platform abuts against the naturally sagging arch at the side wall, and the oil cylinder continues to extend until the outer edge of the telescopic platform pushes the arch at the side wall to the predetermined installation position, and the arch at the side wall and the arch at the vault are tightly fixed, and this set of arches is installed.

[0063] The arches at the vault of the step method construction described in the application are divided into 3 segments, and adjacent segments are tightly connected by bolts and directly installed. After the installation at the vault is completed, the arches at the side wall are installed manually.

Claims

1. A tunnel integrated trolley for arch frame installation, comprising at least a trolley adapted to the contour of the tunnel, and a traveling mechanism, a lateral lifting mechanism, an arch frame installation mechanism, and auxiliary mechanisms mounted on the trolley, characterized in that: The platform has a double-layer structure, including a gantry at the lower layer and a movable support at the upper layer. The gantry is a portal frame structure, and the internal clearance of the gantry ensures the passage requirements of conventional vehicles. The bottom of the movable support is connected to the top of the gantry via a load-bearing rail. The top of the gantry is equipped with a first drive mechanism, which drives the movable support to move relative to the gantry via a first chain and sprocket mechanism. The bottom of the front end of the movable support is equipped with a front support leg that can be extended, retracted, and flipped. The lateral lifting mechanism is distributed at the four corners of the platform and installed on the outside of the gantry. The lateral lifting mechanism includes a lateral movement mechanism at the bottom and a telescopic column at the top, which are fixedly connected vertically. The bottom of the lateral movement mechanism is supported on the ground, and the top of the telescopic column is fixedly connected to the end of the gantry. The lateral movement mechanism is equipped with a lateral movement cylinder, which adjusts the lateral movement of the trolley to be on the centerline of the tunnel. The telescopic column is equipped with a lifting cylinder, which adjusts the lifting of the trolley by extending and retracting vertically. The arch frame installation mechanism includes a lifting mechanism, a hoisting mechanism, a transport trolley, and an installation trolley. The lifting mechanism is located at the rear end of the mobile support and is symmetrically arranged in two sets along the tunnel centerline. The lifting mechanism is used to lift the arch frame from a horizontal position on the ground to a vertical position and then further lift it onto the hoisting mechanism. There are two sets of hoisting mechanisms, symmetrically installed on the rear end of the gantry, used to lift the arch frame from a low position to a high position and then further transfer it onto the transport trolley. There are two sets of transport trolleys, symmetrically distributed on the transport trolley tracks set on both sides of the mobile support. The transport trolleys move along the transport trolley tracks to transfer the arch frame from the hoisting mechanism to the installation trolley. The installation trolley is located on the installation trolley track set on the upper part of the movable support. The installation trolley includes an installation trolley frame and a third drive mechanism, an adjustment frame, and a telescopic frame fixedly connected to the installation trolley frame. The third drive mechanism drives the installation trolley to move back and forth along the installation trolley track. The adjustment frame is located on the upper part of the installation trolley frame and is used to adjust the position of the arch frame in the tunnel circumferential direction to ensure that the arch frame is centered. There are two sets of telescopic frames, which are symmetrically arranged on both sides of the installation trolley frame along the centerline of the tunnel. Different arch frame installation spacings can be achieved by adjusting the telescopic frames. The adjustment frame in the installation trolley is located at the center line of the trolley. The adjustment frame includes an adjustment longitudinal beam, a swing lifting device, a swing cylinder, and an arch frame fixing device. The longitudinal beam is a square tube structure with multiple flanges distributed on its sides. Its lower part is connected to the installation trolley frame through a hinge. There are four sets of swing lifting devices installed on the flanges on the sides of the longitudinal beam. Different arch frame installation spacings can be achieved by adjusting the installation position of the swing lifting device on the flanges of the longitudinal beam. The swing lifting device has an inner and outer sleeve structure, including an inner sleeve, an outer sleeve, and a cylinder connecting the inner and outer sleeves, which can realize relative movement between the inner and outer sleeves. The arch frame fixing device is located at the top of the swing lifting device and is connected and fixed to the inner sleeve of the swing lifting device. The arch frame fixing device includes two ear plates with a spacing adapted to the outer dimensions of the arch frame, and a screw that can be adjusted to extend the length to fix the arch frame. The two ends of the swing cylinder are respectively connected to the installation trolley frame and the longitudinal beam. There are two sets of swing cylinders, distributed at the front and rear ends of the longitudinal beam. The extension and retraction of the swing cylinder can drive the entire adjustment frame to rotate around the hinge at the lower part of the longitudinal beam. The telescopic frame in the installation trolley includes a telescopic longitudinal beam, a telescopic lifting device, and an arch frame fixing device. Multiple flanges are evenly distributed on the top edge of the telescopic longitudinal beam. The arch frame fixing device is installed on the telescopic longitudinal beam through the flanges. Different arch frame installation spacings are achieved by changing the installation position of the arch frame fixing device on different flanges of the telescopic longitudinal beam. The telescopic lifting device is provided in two sets, which are inner and outer sleeve structures, including an inner sleeve, an outer sleeve, and a hydraulic cylinder connecting the inner sleeve and the outer sleeve. It can realize the relative movement of the inner and outer sleeves. The outer sleeve is connected to the frame of the installation trolley, and the inner sleeve is connected to the bottom edge of the telescopic longitudinal beam. The auxiliary components include a work platform and ladders mounted on the frame.

2. The tunnel integrated trolley for arch frame installation according to claim 1, characterized in that: The gantry includes a bottom beam, columns, and an upper crossbeam. The bottom beam consists of two beams, one on the left and one on the right, both arranged longitudinally. The columns are vertically fixed to the bottom beam. The upper crossbeam is horizontally connected and fixed between the tops of two adjacent columns on the left and right, forming a gantry structure together. A cross brace is provided between adjacent upper crossbeams at the front and rear to increase the stability of the gantry. A scissor brace is provided between adjacent columns at the front and rear to increase the stability of the gantry. The movable support includes a front support leg, four sets of arched supports, and longitudinal beams. The four sets of arched supports are spaced apart and connected and fixed to each other as a whole by the longitudinal beams. The bottom of the arched supports is provided with a traveling beam along the longitudinal direction. The traveling beam is located on the bearing rail and moves along the bearing rail. The front support leg is provided with two legs, left and right, which are connected and fixed to each other by a cross brace. The front support leg is a telescopic sleeve structure with a telescopic cylinder inside. The top of the front support leg is hinged to the movable support, and a tilting cylinder is provided between the front support leg and the movable support to enable the front support leg to tilt back and forth.

3. The tunnel integrated trolley for arch frame installation according to claim 2, characterized in that: The load-bearing rails are provided in two sets, left and right, and fixed on the upper crossbeam in the gantry. The load-bearing rails are box-type structures with five sets of trolleys inside. Flange plates are provided on both the left and right sides of the upper edge of the load-bearing rails. Openings for the outer edges of the trolleys to extend are provided on the upper surface of the load-bearing rails at positions corresponding to the trolleys. The entire movable support is supported on the trolleys by the traveling beam. Two sets of reverse rollers are provided at the bottom of the arched support. Each set of reverse rollers is located on the left and right sides of the load-bearing rails, and the rims of the reverse rollers are close to the lower surface of the flange plates in the load-bearing rails to prevent the movable support from deviating during movement on the load-bearing rails. The first drive mechanism and the first chain sprocket mechanism are installed on the upper crossbeam in the gantry. There are two sets of the first chain sprocket mechanism. The first chain sprocket mechanism is arranged along the longitudinal direction. The bottom of the movable support is fixedly connected to the chain through the connector. The first drive mechanism is connected to and driven by the two output shafts of the reducer to the drive sprockets in the two sets of the first chain sprocket mechanism, thereby driving the movement of the chain and further driving the movable support to move.

4. The tunnel integrated trolley for arch frame installation according to claim 2, characterized in that: There are four sets of traveling mechanisms, distributed at the four corners of the gantry and installed below the bottom beam. The traveling mechanism adopts press-fit tire travel. Each set of traveling mechanisms includes two tires, a second drive mechanism, and a second chain and sprocket mechanism. The second drive mechanism is located in the middle of the two tires and drives the tires to rotate through the second chain and sprocket mechanism, thereby moving the trolley forward or backward.

5. The tunnel integrated trolley for arch frame installation according to claim 2, characterized in that: The lateral lifting mechanism consists of four sets, distributed at the front and rear ends of the two bottom beams in the gantry. The lateral mechanism includes a base, a reverse mounting plate, a lateral cylinder seat, and a lateral cylinder. When the base is working, it is supported on the ground. The lateral cylinder seat is placed on the top surface of the base. The lateral cylinder is installed horizontally and its two ends are connected to the base and the lateral cylinder seat respectively. Each base is equipped with two reverse mounting plates. The lower part of the reverse mounting plate is connected to the base by bolts, and the upper part presses the lateral cylinder seat onto the top surface of the base to ensure that the lateral cylinder does not deviate when it pushes the lateral cylinder seat to move on the base. The telescopic column includes a telescopic inner sleeve, a telescopic outer sleeve, and a lifting cylinder. The lower part of the telescopic inner sleeve is bolted to the top surface of the transverse cylinder seat, ensuring that the telescopic column can move along with the transverse cylinder seat when the transverse cylinder moves. The main bodies of both the telescopic outer sleeve and the telescopic inner sleeve are square tube structures. The lifting cylinder is installed inside the square tube of the telescopic inner sleeve, and the telescopic inner sleeve is installed inside the telescopic outer sleeve. The two ends of the lifting cylinder are connected to the telescopic inner sleeve and the telescopic outer sleeve respectively, and the relative sliding between the telescopic outer sleeve and the telescopic inner sleeve is achieved through the lifting cylinder. A flange is provided on the outside of the telescopic outer sleeve to connect to the end of the bottom beam, so that the gantry moves with the telescopic outer sleeve.

6. The tunnel integrated trolley for arch frame installation according to claim 1, characterized in that: The lifting mechanism includes a winch, a telescopic sleeve, a pulley block, and a hook. The pulley block is installed on both ends of the telescopic sleeve. The telescopic sleeve structure can adjust the distance between the pulley blocks to adapt to different working requirements. The lifting mechanism includes a guide frame, a lifting trolley, a fourth drive mechanism, and a fourth chain sprocket mechanism. The guide frame structure is a double-channel steel structure with a reverse interlocking design. The gap in the middle of the double channel steel allows the chain of the fourth chain sprocket mechanism to pass freely through. The upper and lower ends of the lifting trolley are connected to the chain, and the fourth drive mechanism drives the fourth chain sprocket mechanism to move the lifting trolley up and down along the guide frame, lifting the steel arch frame from a low position to a high position. The running track of the lifting trolley is the double channel steel structure of the guide frame. Each lifting trolley has four traveling wheels symmetrically installed on the outside of the double channel steel, and four guide wheels are installed in the gap in the middle of the double channel steel structure to prevent the lifting trolley from deviating.

7. The tunnel integrated trolley for arch frame installation according to claim 1, characterized in that: The transport trolley includes a transport trolley frame, a longitudinal conveying device, a longitudinal conveying track, a lifting mechanism, a fifth drive mechanism, and a fifth chain and sprocket mechanism. The longitudinal conveying device is divided into two parts: the upper part is an arch frame fixing device, which is fixed by adjusting the length of the screw; the lower part is a wheel set arranged on the longitudinal conveying track, which enables the longitudinal conveying device to move along the longitudinal conveying track. The lifting mechanism is located below the longitudinal conveying track and has an inner and outer sleeve structure, including an inner sleeve, an outer sleeve, and a hydraulic cylinder connecting the inner and outer sleeves. The upper part of the inner sleeve is connected to the lower part of the longitudinal conveying track, and the lower part of the outer sleeve is connected to the transport trolley frame. The lifting mechanism can achieve relative movement between the inner and outer sleeves to adjust the height of the longitudinal conveying track. The transport trolley frame is located on the transport trolley track. The fifth drive mechanism drives the transport trolley frame to move through the fifth chain and sprocket mechanism, enabling the entire transport trolley to move along the transport trolley track arranged on the movable support.

8. The tunnel integrated trolley for arch frame installation according to claim 1, characterized in that: A telescopic platform is installed below the work platform located on the side of the frame. The telescopic platform is supported and connected to the work platform, and can extend from below the work platform by being pushed by the platform cylinder.

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