CN217001887U - A platform truck is pour to self-propelled two-lane invert for tunnel - Google Patents
A platform truck is pour to self-propelled two-lane invert for tunnel Download PDFInfo
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- CN217001887U CN217001887U CN202220818543.4U CN202220818543U CN217001887U CN 217001887 U CN217001887 U CN 217001887U CN 202220818543 U CN202220818543 U CN 202220818543U CN 217001887 U CN217001887 U CN 217001887U
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Abstract
The utility model discloses a self-propelled double-lane inverted arch pouring trolley for a tunnel, wherein: the trolley sequentially comprises a front slope section, a front track changing section, a pouring section, a travelling section, a rear track changing section and a rear slope section from front to back, and all the sections are connected through a pin shaft; double lanes are laid at the upper parts of the pouring section and the travelling crane section, and each lane comprises a pair of rails; single lanes including a pair of rails are paved on the upper parts of the front slope section and the rear slope section; the upper surface of the front slope section slowly rises from front to back, and the upper surface of the rear slope section slowly falls from front to back.
Description
Technical Field
The utility model belongs to the field of tunnel construction equipment, and particularly relates to a self-propelled double-lane inverted arch pouring trolley for a tunnel.
Background
At present, the tunnel invert is pour the construction and is adopted the mode of simple and easy landing stage usually, and its flexibility is poor, need rely on external power device to remove. The simple trestle and the existing self-propelled inverted arch pouring trolley are usually arranged separately from the template device, when pouring operation is carried out, workers are required to install the template device in advance, the template is removed after concrete is solidified, and the step is repeated to carry out the pouring operation of the next section. The inverted arch construction is difficult to realize automatic operation by the aid of the external power device and frequent template dismounting, a series of problems of complex operation process, low construction efficiency, high labor intensity of workers, frequent safety accidents and the like are caused, and meanwhile, only one pouring tank car can be accommodated when pouring operation is carried out, so that inconvenience is caused to scheduling of other engineering vehicles, and the overall engineering progress is influenced.
Therefore, the utility model provides a self-propelled double-lane inverted arch pouring trolley for a tunnel, which can well solve the problems.
SUMMERY OF THE UTILITY MODEL
In order to realize the purpose of the utility model, the following technical scheme is adopted for realizing the purpose:
a platform truck is pour to self-propelled two-lane invert for tunnel, wherein: the trolley sequentially comprises a front slope section, a front track changing section, a pouring section, a travelling section, a rear track changing section and a rear slope section from front to back, and all the sections are connected through a pin shaft; double lanes are laid at the upper parts of the pouring section and the travelling crane section, and each lane comprises a pair of rails; single lanes including a pair of rails are paved on the upper parts of the front slope section and the rear slope section; the upper surface of the front slope section slowly rises from front to back, and the upper surface of the rear slope section slowly falls from front to back.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the slopes of the front slope section and the rear slope section are less than or equal to 4%.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the pouring section comprises a tunnel side wall supporting device, a main body longitudinal beam, a tunnel bottom surface supporting device connected below the main body longitudinal beam, a template telescopic hydraulic cylinder and a template device; the lower part of the main longitudinal beam is connected with a plurality of tunnel side wall supporting devices.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the tunnel side wall supporting device is connected with the main body longitudinal beam through the longitudinal beam fixing clamping plates and the bolt groups, and the longitudinal beam fixing clamping plates are fixedly connected to the two sides of the tunnel side wall supporting device in the width direction and connected with the main body longitudinal beam through the bolt groups.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the tunnel side wall supporting device comprises a supporting device body, a left supporting leg, a left connecting rod group, a right supporting leg and a right connecting rod group, wherein the left supporting leg, the left connecting rod group, the right supporting leg and the right connecting rod group are connected to the two sides of the supporting device body in the length direction.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the supporting device main body is of a space truss structure formed by connecting two groups of same inverted trapezoidal trusses through cross beams, each inverted trapezoidal truss comprises an upper beam, a lower beam and two side beams, the two side beams are respectively connected with the upper beam and the lower beam on two sides of the upper beam and the lower beam, the length of the upper beam is greater than that of the lower beam, and each inverted trapezoidal truss is in an isosceles trapezoid shape; four angles of 2 underbeams are respectively opened and are had 1 through-hole, and an auxiliary backing plate is respectively installed to every through-hole both sides, and auxiliary backing plate opens has a mounting hole, the mounting hole is relative with the through-hole, and auxiliary backing plate passes through bolt group and is connected with the underbeams.
The self-propelled two-lane invert of tunnel pour platform truck, wherein: the left supporting leg and the right supporting leg comprise supporting legs, connecting rods and rotating shafts; the rotating shaft penetrates through the through hole of the supporting device main body and the auxiliary base plate mounting hole and can freely rotate in the through hole, and two supporting legs are mounted at two ends of the rotating shaft respectively; the tail ends of the supporting legs are connected with boot plates, and a plurality of groups of anti-skid nails are arranged at the bottoms of the boot plates; the lower end of the connecting rod is non-rotatably sleeved on the rotating shaft, and the upper end of the connecting rod is hinged to the left connecting rod group or the right connecting rod group.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the rotation strokes of the left supporting leg and the right supporting leg are different.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the left connecting rod group and the right connecting rod group comprise short connecting rods, long connecting rods and telescopic hydraulic cylinders; one end of the short connecting rod is hinged with one end of the connecting rod, and the other end of the short connecting rod is hinged with one end of the long connecting rod; the middle part of the long connecting rod is hinged with a cylinder rod of the telescopic hydraulic cylinder; the other end of the long connecting rod is hinged to the lower part of the supporting device main body; the cylinder barrel of the telescopic hydraulic cylinder is hinged to the upper part of the supporting device main body.
The self-propelled two-lane invert of tunnel pour platform truck, wherein: the template device comprises a water retaining template, a front end template, a rear end template and a central ditch template; the water retaining templates, the front end template and the rear end template are sequentially arranged from front to back, are arranged at the front end of the template device and are connected to the lower surface of the main longitudinal beam through template telescopic hydraulic cylinders; the radian of the bottom surface of the water retaining template is the same as that of the bottom surface of the tunnel; the front end template comprises a front end template upper part and a front end template lower part which are respectively driven by respective telescopic hydraulic cylinders arranged on the lower surfaces of the main longitudinal beams, the upper surface of the front end template lower part is provided with an embedded groove, and the bottom surface of the front end template upper part is matched with the embedded groove in shape and can be embedded in the embedded groove; the bottom surface of the lower part of the front end template is arc-shaped, and the radian is the same as that of the bottom surface of the tunnel; a groove with the same shape as the cross section of the central ditch template is formed in the middle of the upper part of the front end template and the rear end template; the central ditch template is connected to the lower surface of the main longitudinal beam through a template telescopic hydraulic cylinder and can be embedded into the groove.
The self-propelled two-lane invert of tunnel pour platform truck, wherein: the tunnel bottom supporting device is connected to the lower surface of a main longitudinal beam between the water retaining template and the front end template and comprises a bearing beam and two hydraulic cylinders connected to two ends of the bearing beam, and the bearing beam is fixed to the lower surface of the main longitudinal beam.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the driving section comprises a main longitudinal beam, a pouring surface supporting device connected to the middle of the lower surface of the main longitudinal beam and tunnel side wall supporting devices connected to the front end and the rear end of the main longitudinal beam.
The self-propelled two-lane invert of tunnel pour platform truck, wherein: the driving section further comprises an ear plate connected to the front side of the front-end tunnel side wall supporting device and a clamping plate connected to the rear side of the rear-end tunnel side wall supporting device, the ear plate and the clamping plate can be used for connecting the multiple sections of driving sections through pin shafts, and the middle of the lower surface of the lower cross beam of the front and rear two groups of tunnel side wall supporting devices of the driving section is connected with a single-wheel bearing wheel set.
The self-propelled two-lane invert of tunnel pour platform truck, wherein: the single-wheel bearing wheel set comprises a rail wheel, a support, a wheel shaft, a baffle plate and a screw set, wherein the support is a door-shaped support and comprises an upper plate and two side plates, the upper plate is connected with a tunnel side wall supporting device through a bolt, and the two side plates are provided with grooves for assembling the wheel shaft; the outer ring of the rail wheel is provided with a circle of grooves, the rail wheel is rotatably arranged on the wheel shaft, two ends of the wheel shaft are respectively provided with a groove, the baffle is clamped into the grooves on two sides of the wheel shaft and is connected to the side plate of the support through a screw group.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: preceding orbital transfer section includes preceding orbital transfer section main part and connects drive wheel and the tunnel bottom surface strutting arrangement at its lower surface, wherein the drive wheel is two sets of altogether, connects respectively at orbital transfer section main part two the self-propelled two-lane invert in tunnel pour the platform truck, wherein: the upper surface of the front rail-changing section is paved with a single lane, double lanes and switches, the double lanes comprise four steel rails, the single lane comprises two steel rails, the double lanes comprise the front single lane and the rear single lane are connected through the switches.
The self-propelled two-lane invert of tunnel pour platform truck, wherein: the driving wheel directly runs on the bottom tunnel steel rail and is a power part of the trolley.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the back becomes the rail section including back becomes rail section main part and connects the double round bearing wheelset at the lower surface through the support post, double round bearing wheelset totally 4 groups, evenly distributed becomes rail section main part lower surface at the back.
The self-propelled two-lane invert of tunnel pour platform truck, wherein: the rear track transfer section upper surface laid single lane and two lanes and switch, the two lanes totally four rails, the single lane totally two rails, the two lanes in front and the single lane behind, the two through the switch connection.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the double-wheel bearing wheel set comprises a rail wheel, a support, a wheel shaft, a baffle and a screw set; the support is a door-shaped support, the upper plate is connected with the support upright post through a bolt, and two ends of the two side plates are respectively provided with a groove for assembling the wheel shaft; the number of the track wheels is two, and the outer ring is provided with a circle of groove which is used for matching with the bottom steel rail; the rail wheel is rotatably arranged on the wheel shaft; the two wheel shafts are arranged in grooves formed in the front and the rear of the support; the two ends of the wheel shaft are respectively provided with a groove, the baffle plates are clamped in the grooves on the two sides of the wheel shaft and are connected to the side plates of the support through screw groups.
The self-propelled two-lane invert of tunnel pour platform truck, wherein: the supporting upright posts are formed by oppositely bending the bottom surfaces of two rectangular steel plates in a C shape, and the rectangular steel plates at two sides are connected through bolts to be clamped and fixed; the rectangular steels are distributed on two sides of the vertical plate of the bent steel plate, and the upper surface and the lower surface of the rectangular steels are tightly attached to the upper flange and the lower flange of the bent steel plate.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the front track-changing section main body and the rear track-changing section main body are of grid structures formed by welding H-shaped steel.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the front slope section sequentially comprises a nose backing plate, a backing plate section and a front slope section from front to back; wherein, the backing plate section passes through the extension splint with the first backing plate of waning and is connected, and extension splint are connected to the terminal both sides of the first backing plate of waning, and extension splint one end articulates in backing plate section front end, the extension splint other end and the first backing plate rear end fixed connection of waning, the first backing plate of waning can rotate around articulated department, and backing plate section rear end is connected with preceding slope section front end.
The self-propelled two-lane invert of tunnel pour platform truck, wherein: the front slope section comprises a front slope section main body and a double-wheel bearing wheel set connected below through a supporting upright post, wherein the front slope section main body is formed by connecting two sections of parallel H-shaped steel through rectangular steel.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the base plate section comprises two solid rectangular steels with the upper parts replacing the rails and channel steels with the lower parts directly contacting with the steel rails on the bottom surface of the tunnel, and the center distance is the same as that of the rails at the bottom; the number of the channel steel is two, and the center distance is the same as that of the bottom track. The central line of the solid rectangular steel on the same side, the central line of the channel steel and the central line of the bottom track are positioned on the same plane, and the solid rectangular steel and the channel steel are vertically connected together through the narrow flange H-shaped steel.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the backing plate section still including connecting rotation support arm and the spacing axle at solid rectangular steel, wherein, rotate support arm end and rotationally connect at solid rectangular steel front end, spacing hub connection is in the rear of rotating the support arm.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the rotary supporting arm supporting main body is narrow-flange H-shaped steel, and a lifting ring formed by bending a reinforcing steel bar is welded at the front end of the rotary supporting arm supporting main body.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the nose backing plate comprises backing plate rectangular steel and a limiting shaft, wherein the backing plate rectangular steel is divided into two pieces, the backing plate rectangular steel is formed by cutting solid rectangular steel, and the gradient of the upper surface after cutting is the same as that of a slope section, namely a front slope section and a rear slope section; the limiting shaft is fixedly connected in the middle of the rectangular steel of the backing plate.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the rear slope section sequentially comprises a rear slope section, a backing plate section and a warped backing plate from front to back.
The self-propelled two-lane inverted arch in tunnel pour platform truck, wherein: the rear slope section has the same structure as the front slope section and comprises a rear slope section main body and a double-wheel bearing wheel set connected below through a support stand column.
Drawings
FIG. 1 is one of the overall layout views of a self-propelled dual-lane inverted arch casting trolley for a tunnel of the present invention;
FIG. 2 is a second overall layout of a self-propelled dual-lane inverted arch casting trolley for a tunnel according to the present invention;
fig. 3 is an overall layout of the casting section 1;
FIG. 4 is a schematic view of the tunnel sidewall brace 101 coupled to the body stringers 102;
FIG. 5 is a schematic view of the structure of the tunnel sidewall support 101;
FIG. 6 is a second schematic structural view of the tunnel sidewall supporting device 101;
FIG. 7 is a third schematic structural view of the tunnel sidewall supporting device 101;
FIG. 8 is a schematic structural view of the support device body 10101;
fig. 9 is a schematic view of the auxiliary pad 10107 being connected to the supporting device body 10101;
FIG. 10 is a schematic view of the gasket 10108 assembled;
FIG. 11 is a schematic view of the left leg 10102 and the right leg 10103;
FIG. 12 is a schematic view of the connection between the boot plate 10106 and the cylindrical leg 101021;
FIG. 13 is a schematic view of a reinforcement link 101022;
FIG. 14 is a second schematic view of the left leg 10102 and the right leg 10103;
FIG. 15 is a schematic view of the left track 10104 and the right track 10105;
fig. 16 is a schematic view of the tunnel side wall supporting device 101 in a platform walking state;
fig. 17 is a schematic view of the tunnel sidewall support 101 in a state where the platform is performing a casting operation;
FIG. 18 is one of the schematic structural views of the template device 105;
FIG. 19 is a second schematic view of the structure of the template device 105;
FIG. 20 is a schematic structural view of the tunnel floor support 103
FIG. 21 is a schematic view of one of the formwork arrangements 105 in a position where the platform is performing a casting operation;
FIG. 22 is a second schematic view of the formwork apparatus 105 in a state where the platform is performing a casting operation;
FIG. 23 is a schematic view of the platform walking state template device 105;
FIG. 24 is one of the overall layouts of the traveling section 2;
FIG. 25 is a second overall layout view of the traveling section 2;
FIG. 26 is a second overall layout of the traveling crane section 2;
figure 27 is a schematic view of a single-wheel load-bearing wheel set 203;
fig. 28 is an overall layout view of the front track changing section 3;
FIG. 29 is a top view of the front derailment section 3;
FIG. 30 is a schematic structural view of a front tracking section body 301;
FIG. 31 is a schematic view of the drive wheel 302 assembly;
FIG. 32 is a schematic view of the front derailment section 3 when the trolley is in a walking state;
fig. 33 is a schematic view of the front track section 3 with the trolley in the casting position;
fig. 34 is an overall layout view of the post-orbital transfer section 4;
FIG. 35 is a top view of the post-tracking section 4;
FIG. 36 is a schematic view of a dual wheel load bearing wheel assembly 402;
figure 37 is a schematic view of the connection of the two-wheel load-bearing wheel set 402 with the support column 403;
fig. 38 is a schematic view of the rear track change section 4 when the trolley is in a walking state;
FIG. 39 is a schematic view of the rear track-changing section 4 with the trolley in the pouring position;
fig. 40 is an overall layout view of the front slope section 5;
FIG. 41 is a schematic structural view of a section 501 of a front slope segment 1;
FIG. 42 is a schematic view of the construction of the pad segment 502;
FIG. 43 is a schematic view of the connection of a forward slope section 1 section 501 with a tie plate section 502;
fig. 44 is a layout view of a channel 5022;
fig. 45 is a schematic view of the nose pad 503 when the trolley is in a pouring operation state;
fig. 46 is one of schematic views of the nose pad 503 when the dolly is in a walking state;
fig. 47 is a second schematic view of the nose pad 503 when the trolley is in a walking state;
fig. 48 is an overall layout view of the rear slope section 6;
FIG. 49 is a schematic structural view of a section 601 of the rear slope section 1;
FIG. 50 is one of the schematic views of the operation of the trolley;
FIG. 51 is a second schematic view of the operation of the trolley;
FIG. 52 is a third schematic view of the operation of the trolley;
FIG. 53 is a fourth schematic view of the operation of the trolley.
Reference numerals: 1 pouring section, 2 travelling crane section, 3 front track changing section, 4 rear track changing section, 5 front slope section, 6 rear slope section, 7 belt conveyer, 101 tunnel side wall supporting device, 102 main longitudinal beam, 103 tunnel bottom supporting device, 104 template telescopic hydraulic cylinder, 105 template device, 106 longitudinal beam fixing splint, 107 bolt group, 10101 supporting device main body, 10102 left leg, 10103 right leg, 10104 left connecting rod group, 10105 right connecting rod group, 10106 shoe plate, 10107 auxiliary cushion plate, 10108 washer, 10109 bolt group, 10110 pin group, 101021 cylindrical leg, 101022 connecting rod, 101023 rotating shaft, 101031 supporting leg, 101032 connecting rod, 101033 rotating shaft, 101041 short connecting rod, 101042 long connecting rod, 101043 telescopic hydraulic cylinder, 101051 short connecting rod, 101052 long connecting rod, 101053 telescopic hydraulic cylinder, 10501 water retaining template, 10502 front end template upper part, 10503 front end template lower part, 10504 central ditch template, 10505 rear end template, 105202 longitudinal beam supporting device main body supporting device and pouring device, 203 single-wheel bearing wheel set, 204 lug plate, 205 splint, 2031 rail wheel, 2032 support, 2033 axle, 2034 baffle, 2035 screw set, 301 front rail segment main body, 302 drive wheel, 401 rear rail segment main body, 402 double-wheel bearing wheel set, 403 support column, 4021 rail wheel, 4022 support, 4023 axle, 4024 baffle, 4025 set, 501 front slope segment screw 1 segment, 502 pad segment 503, nose pad, 504 splint, 505 extension splint, 5011 front slope segment 1 segment main body, 5012 support column, 5021 solid rectangular steel, 5022 channel steel, 5023 rotation support arm, 5024 limit shaft, 5031 pad rectangular steel, 5032 limit shaft, 506 chain block, 601 rear slope segment 1 segment, 6011 rear slope segment main body, 6012 support column.
Detailed Description
The following describes in detail a specific embodiment of the present invention with reference to fig. 1 to 53.
As shown in fig. 1 and fig. 2, the self-propelled double-lane inverted arch pouring trolley for the tunnel sequentially comprises a front slope section 5, a front track-changing section 3, a pouring section 1, a traveling section 2, a rear track-changing section 4 and a rear slope section 6 from front to back, and the sections are connected by single pin shafts with the same specification and can horizontally rotate at a small angle with each other, so that the function of small-angle steering of the trolley is realized. A belt conveyor 7 independent of the utility model is installed on one side of the tunnel for transporting the waste material produced during the driving process, and the utility model has no interference with the driving and working processes. Double lanes are laid on the upper portions of the pouring section 1 and the traveling section 2, each lane comprises a pair of rails, and the center distances of the rails of each pair are the same; the double lanes can be used for two groups of pouring vehicles to pass through simultaneously. A single lane is laid on the upper portions of the front slope section 5 and the rear slope section 6, the slope of the lane is less than or equal to 4%, slipping of a pouring vehicle during ascending and descending can be effectively prevented, the upper surface of the front slope section 5 slowly ascends from front to back, and the upper surface of the rear slope section 6 slowly descends from front to back. And the upper parts of the rail changing section 3 and the rail changing section 4 are paved with steel rails and turnouts for completing transition between a single lane and a double lane, the rail changing section 3 is changed from the front to the back from the single lane to the double lane through the turnout, and the rail changing section 4 is changed from the front to the back from the double lane to the single lane through the turnout.
In the example, when the trolley is used for pouring, after pouring materials are filled in the pouring vehicle, the trolley is driven to the slope section 6, enters a selected lane through the track transfer section 4, is driven to the pouring section 1 for pouring, then enters the slope section 5 through the track transfer section 3 after pouring is finished, the trolley is driven down, and the next pouring operation is carried out after the pouring materials are filled again; the opposite direction is also the same.
In this example, the pavement under the trolley comprises the following components in sequence from front to back according to whether pouring is performed or not and the bearing performance: 1. a tunnel bottom section which is not poured yet and can bear load; 2. pouring is completed, and the road section to be maintained which can not bear the load is not solidified; 3. pouring is completed, and the light-load road section which cannot bear heavy load is not completely solidified; 4. and (5) completing pouring, and completely solidifying the heavy-load road section capable of bearing heavy load. A tunnel bottom road section and a road section to be maintained are sequentially arranged below the pouring section 1 from front to back, wherein a region to be poured is included in the tunnel bottom road section below the pouring section 1; in the area to be poured, the rest working components of the trolley can not appear in the space from the bottom surface of the tunnel to the height of the poured pavement; the pouring section 1 is completely suspended in the lower road surface (comprising a tunnel bottom road section and a road section to be maintained) except for the front end which is not the area to be poured; the supporting devices are arranged on two sides of the pouring section 1, and the supporting is completed by utilizing the side wall surface of the tunnel. The multiple traveling crane sections 2 can be arranged and connected end to end through single pin shafts, and can be combined into different lengths to meet the actual requirements of engineering, a poured light-load road section is arranged below the traveling crane sections 2, and steel rails are laid above the traveling crane sections and can bear the dead weight of a trolley but cannot bear the load generated when a pouring vehicle passes through or works; the travelling crane section 2 can run on a light-load road section, when a pouring vehicle is arranged above the trolley, the travelling crane section 2 is completely suspended in the air below a pouring road surface, and the side wall surface of the tunnel is used for completing supporting; the center distance of the steel rail paved for the traveling crane section 2 to travel is the same as that of the rail of the trolley lane. And a tunnel bottom road section for laying steel rails is arranged below the front slope section 5 and the front rail transfer section 3, and can bear the weight of a trolley and a pouring vehicle. And a heavy-load road section paved with steel rails is arranged below the rear track-changing section 4 and the rear slope section 6, and can bear the weight of a trolley and a pouring vehicle.
As shown in fig. 3, the casting section 1 comprises a tunnel side wall support device 101, a body longitudinal beam 102, a tunnel bottom support device 103 connected below the body longitudinal beam 102, a template telescopic hydraulic cylinder 104 and a template device 105.
As shown in fig. 4, the body longitudinal beam 102 includes 4H-shaped steels parallel to each other, and a steel rail is laid in the center of the upper surface of the upper flange of each H-shaped steel to form a dual lane; the H-shaped steel has good bending resistance and can bear the load generated by pouring vehicles. The front part, the rear part and the middle part of the main body longitudinal beam 102 are connected with a plurality of tunnel side wall supporting devices 101, and the tunnel side wall supporting devices support the wall surface of the tunnel to bear a pouring vehicle when a trolley is used for pouring. The tunnel bottom supporting device 103 is connected to the lower surface of the main longitudinal beam 102, supports the tunnel bottom during pouring operation, stabilizes the platform, and prevents the trolley from turning over when the vehicle is poured in the single-side lane. The template device 105 is connected to the lower surface of the main longitudinal beam 102 through a template telescopic hydraulic cylinder 104 and can lift up and down.
As shown in fig. 4, the tunnel side wall supporting device 101 is connected with the body longitudinal beam 102 through the longitudinal beam fixing clamp plate 106 and the bolt set 107; the longitudinal beam fixing clamping plates 106 are welded at two side surfaces of the tunnel side wall supporting device 101 and connected with the web plate of the H-shaped steel of the body longitudinal beam 102 through bolt groups 107.
As shown in fig. 5 to 7, the tunnel sidewall supporting device 101 includes a supporting device body 10101, left and right legs 10102 and 10103 connected to both sides of the supporting device body 10101 in a length direction, and left and right groupings 10104 and 10105 connected to a center of the supporting device body 10101 in a width direction; the tunnel sidewall supporting device 101 further includes auxiliary pads 10107 attached to four corners of the lower portion of the supporting device body 10101, washers 10108, and shoes 10106 attached to the ends of the left leg 10102 and the right leg 10103.
As shown in fig. 8, the sidewall support device body 10101 is formed by welding H-shaped steel, and is a space truss structure formed by connecting two sets of same inverted trapezoidal trusses through cross beams. The inverted trapezoidal truss comprises an upper beam, a lower beam and two side beams, wherein the two side beams are respectively connected with the upper beam and the lower beam on the two sides of the upper beam and the lower beam, the length of the upper beam is larger than that of the lower beam, the inverted trapezoidal truss is in an isosceles trapezoid shape, the bearing capacity of the inverted trapezoidal truss is stronger, the pressure of the upper beam can be uniformly transmitted to four supporting points on the two sides of the lower beam, and the space structure provides sufficient installation space for other members. As shown in fig. 9, the webs at the four corners of the 2 lower beams of the supporting device main body 10101 are respectively provided with 1 through hole, and two sides of each through hole are respectively provided with an auxiliary pad 10107; the auxiliary backing plate 10107 is an L-shaped plate, and comprises a vertical plate and a horizontal plate, wherein the vertical plate is provided with a mounting hole, and the diameter of the mounting hole is the same as that of a through hole formed in the lower beam; the 2 auxiliary backing plates 10107 are respectively installed from two sides of the through hole, the installation holes of the auxiliary backing plates are opposite to the through hole, the vertical plate and the horizontal plate are respectively attached to the lower beam web and the upper side flange and are connected with the lower beam through the bolt group 10109, and the strength of four supporting points of the supporting device main body 10101 is improved; the mounting holes formed in the auxiliary backing plate 10107 and the through holes formed in the lower beam are used for mounting the left supporting leg 10102 and the right supporting leg 10103. As shown in fig. 10 and 11, the left leg 10102 includes a cylindrical leg 101021, a connecting rod 101022 and a rotating shaft 101023. The cylindrical leg 101021 comprises an upper leg 10102101, an upper sleeve 10102102, a lower leg 10102103 and a lower sleeve 10102104; the upper supporting leg 10102101 is in threaded connection with the upper sleeve 10102102, the lower cylindrical supporting leg 10102103 is in threaded connection with the lower sleeve 10102104, rectangular positioning grooves are dug in the opposite surfaces of the upper supporting leg 10102101 and the lower supporting leg 10102103, the upper supporting leg and the lower supporting leg are positioned through the rectangular positioning pins, the upper portion and the lower portion of the supporting leg are fixed between the upper sleeve 10102102 and the lower sleeve 10102104 through bolt connection, and bolts are installed in bolt holes in opposite flanges of the upper sleeve 10102102 and the lower sleeve 10102104 and locked through nuts. The left leg 10102 is rotatably connected to one side of the supporting device body 10101 through a rotating shaft 101023; the rotating shaft 101023 penetrates through a web plate through hole at one side of the supporting device main body 10101 and a mounting hole of the auxiliary backing plate 10107, and two circular supporting legs 101021 are respectively mounted at two ends of the rotating shaft 101023 in the axial direction; a gasket 10108 is arranged between the circular leg 101021 and the auxiliary backing plate 10107 and is used for compensating a gap between the inner side of the circular leg 101021 and the outer side of the auxiliary backing plate 10107 after installation and fixing the axial displacement of the leg. The cross section of the circular supporting leg 101021 is circular, and the force born at each position under the heavy load condition is even and symmetrical, so that the contact surface is not easy to damage, and the stability of the trolley during pouring operation is ensured. As fig. 12, the terminal boots board 10106 that is connected with through pin group 10110 of cylinder type landing leg 101021, and the direct and tunnel lateral wall contact in bottom surface when the operation is pour to the platform truck of boots board 10106, and the boots board 10106 bottom is the U face, has increased the area of contact with the tunnel lateral wall, and multiunit antiskid nail has been inlayed to the boots board 10106 bottom, can effectively prevent the phenomenon of skidding and appear.
As shown in fig. 13, the link 101022 has a cam shape, the lower end is non-rotatably sleeved on the rotating shaft 101023 to resist a large torque generated during supporting, the upper end is hinged to the left link set 10104, and the hinge position does not interfere with the left link set 10104 during rotation.
In this embodiment, because the platform right side is provided with belt conveyor 7, the platform truck in-process of marcing for avoiding taking place to interfere with belt conveyor 7, right landing leg 10103 rotatory stroke is greater than left landing leg 10102, and right landing leg 10103 position is higher than left landing leg 10102 when rotatory to the stroke terminal.
As shown in fig. 14, the right leg 10103 includes a cylindrical leg 101031, a link 101032, and a rotation shaft 101033; the cylindrical leg 101031 comprises an upper leg 10103101, an upper sleeve 10103102, a lower leg 10103103 and a lower sleeve 10103104; the right supporting leg 10103 is different from the left supporting leg 10102 only in the included angle between the cylindrical supporting leg 101031 and the connecting rod 101032, and the rest of the structure is the same as that of the left supporting leg 10102.
As shown in fig. 15, the left linkage 10104 includes a short link 101041, a long link 101042, and a telescopic hydraulic cylinder 101043. One end of the short connecting rod 101041 is hinged with the upper end of the connecting rod 10102, and the other end of the short connecting rod 101041 is hinged with one end of the long connecting rod 101042; the middle part of the long connecting rod 101042 is provided with an earring with a through hole, the earring is hinged with the front end of a cylinder rod of the telescopic hydraulic cylinder 101043, and the components at the hinged part in the structure can rotate mutually; the other end of the long connecting rod 101042 is hinged to the lower part of the supporting device main body 10101; the cylinder barrel of the telescopic hydraulic cylinder 101043 is hinged on the upper part of the supporting device main body 10101. The right linkage is similar to the left linkage 10104 in structure, the right linkage 10105 includes a short link 101051, a long link 101052, and a telescopic hydraulic cylinder 101053, and the connection relationship and the telescopic hydraulic cylinder 101053 are the same as the left linkage 10104 except for the lengths of the short link 101051 and the long link 101052.
As shown in fig. 16, in the self-propelled double-lane inverted arch pouring trolley for the tunnel, when in a walking state, the telescopic hydraulic cylinder 101043 extends forwards, and the angle of the left leg 10102 is adjusted through the left linkage 10104; similarly, the angle of the right leg 10103 can be adjusted by a right linkage 10105 that is carried by the telescoping hydraulic cylinder 101053.
In this embodiment, when the trolley is in a walking state, the left leg 10102 should rotate to a position far away from the wall surface of the tunnel; in order to avoid interference with the belt conveyor 7, the right leg 10103 has a larger rotation angle than the left leg 10102.
As shown in fig. 17, when the trolley is used for pouring, the telescopic hydraulic cylinder 101043 and the telescopic hydraulic cylinder 101053 are retracted to the initial position and are self-locked, and the left leg 10102 and the right leg 10103 are driven by the left linkage 10104 and the right linkage 10105 to rotate to the position of the wall surface of the tunnel, so as to support the trolley. At the moment, the centers of the short connecting rod 101041 and the long connecting rod 101042, and the centers of the short connecting rod 101051 and the long connecting rod 101052 are respectively positioned on the same straight line, and the self-locking of the left supporting leg 10102 and the right supporting leg 10103 is completed by utilizing dead points.
As shown in fig. 18 and 19, the formwork arrangement 105 includes, in order from front to back, a water dam formwork 10501, a front end formwork (including a front end formwork upper portion 10502, a front end formwork lower portion 10503), a center gutter formwork 10504, and a rear end formwork 10505. The water retaining template 10501 is connected to the lower surface of the main longitudinal beam 102 through the template telescopic hydraulic cylinder 104, the radian of the bottom surface of the water retaining template 10501 is the same as that of the bottom surface of the tunnel, a waterproof rubber ring is arranged on the bottom surface, and the water retaining template 10501 descends under the action of the telescopic hydraulic cylinder 104 until the bottom surface is attached to the bottom surface of the tunnel when the trolley performs pouring operation, so that the sewage generated by tunneling is prevented from permeating into a pouring section. The front end template comprises a front end template upper part 10502 and a front end template lower part 10503, the front end template upper part 10502 and the front end template lower part 10503 are connected with one end of a hydraulic cylinder, the other end of the hydraulic cylinder is connected with a connecting rod, the connecting rod is welded and installed on the lower surface of a main longitudinal beam 102 and is driven to lift by a telescopic hydraulic cylinder 104, the front end template upper part 10502 and the front end template lower part 10503 extend vertically to the ground from top to bottom, and the front end template upper part 10502 is opposite to the front end template lower part 10503; the upper surface of the lower part 10503 of the front end template is provided with an embedded groove, the bottom surface of the upper part 10502 of the front end template is matched with the embedded groove in shape and can be embedded into the embedded groove, a gap is left in the middle after the embedding, and a rubber water stop 10111 can be arranged.
In this example, when the carriage is performing a pouring operation, the front end formwork lower portion 10503 is lowered to the tunnel bottom, the rubber water stop 10111 is set in the upper surface fitting groove of the front end formwork lower portion 10503, and the front end formwork upper portion 10502 is lowered to clamp the rubber water stop 10111.
The rubber waterstop 10111 is a sheet made of rubber and has a certain thickness, is arranged in the middle position from the pouring road surface to the bottom of the tunnel, is covered by the pouring material when pouring, is exposed outside the pouring road surface, and is completely covered after the next section of pouring is finished; the rubber waterstop 10111 can effectively prevent the phenomenon of seeper infiltration between two pouring sections.
The bottom surface of the lower 10503 part of the front end template is arc-shaped, the radian is the same as that of the bottom surface of the tunnel, and the bottom surface of the tunnel can be descended to be tightly attached to the wall surface during pouring operation.
The upper part 10502 of the front end template and the rear end template 10505 are connected to the lower surface of the main longitudinal beam 102 through a template telescopic hydraulic cylinder 104, the two side surfaces in the length direction are arc-shaped, the radian is the same as that of the wall surface of the tunnel, and the front end template and the rear end template can be stably attached to the wall surface of the tunnel to complete template positioning when descending; the middle position of the upper part 10502 of the front end template and the rear end template 10505 is provided with an inverted trapezoidal groove with the same shape as the section of the central ditch template 10504.
The central ditch template 10504 is connected at main body longeron 102 lower surface through template telescopic hydraulic cylinder 104, and the cross-section is the down-trapezoidal, uses when pouring the road surface that has central drainage channel, and central ditch template 10504 front end and rear end block respectively in the middle of front end template upper portion 10502 and rear end template 10505 down-trapezoidal recess department, can prevent to pour the in-process and appear rocking.
As shown in fig. 20, the tunnel bottom supporting device 103 is connected to the lower surface of the main longitudinal beam 102 between the water-retaining template 10501 and the front end template, and is a load-bearing structure with two hydraulic cylinders connected to two ends of a load-bearing beam; the bearing beam is fixed on the lower surface of the main longitudinal beam 102; the hydraulic cylinder extends to the bottom surface of the tunnel when the trolley is used for pouring, and has the functions of bearing pouring vehicles and preventing the trolley from turning over when the trolley runs on a single-side lane.
Fig. 21 and 22 show the work station of the formwork arrangement 105 when the trolley is performing a casting operation.
In this embodiment, the trolley, during the pouring operation: firstly, after the trolley moves to a specified position to be poured, the tunnel side wall supporting device 101 and the tunnel bottom surface supporting device 103 are respectively supported to the side wall and the bottom of the tunnel; secondly, the water retaining template 10501 is lowered to the bottom surface of the tunnel to block the waste water generated by tunneling, and the tunnel of the section to be cast is cleaned manually; thirdly, the lower part 10503 of the front-end template descends to the bottom surface of the tunnel, a rubber water stop belt 10111 is placed, and one end of the rubber water stop belt 10111 protrudes to the pouring section area; fourthly, the upper part 10502 of the front end template descends until the lower surface is attached to the upper surface of the embedding groove of the lower part 10503 of the front end template, and at the moment, the rubber waterstop 10111 is tightly pressed; fifthly, the rear end template 10505 descends until the two arc-shaped side surfaces are attached to the wall surface of the tunnel; sixthly, the central ditch template descends, and the front end and the rear end are respectively clamped into the inverted trapezoidal grooves between the upper part 10502 of the front end template and the rear end template 10505; and seventhly, driving the pouring vehicle to the trolley to perform pouring operation.
Fig. 23 shows a station where the template device 105 is located when the cart is in a traveling state.
In this example, after the pouring operation is completed, the trolley is switched to a walking state: firstly, the tunnel bottom supporting device 103 is lifted upwards by a certain height to ensure that the tunnel bottom is not scratched when the tunnel is walking; secondly, the water retaining template 10501 is lifted to a certain distance away from the bottom surface of the tunnel through a template telescopic hydraulic cylinder 104; thirdly, the central gutter template 10504 is lifted upwards by the template telescopic hydraulic cylinder 104 until the central groove is separated from the upper part 10502 of the front end template and the central groove of the rear end template 10505; fourth, the front template upper portion 10502 and the rear template 10505 are then raised upwardly to the same height as the central gutter template 10504; and fifthly, slightly lifting the lower part 10503 of the front-end template upwards, and moving the trolley forwards after the lower part 10503 of the front-end template is separated from the bottom surface of the tunnel until the lower part 10503 of the front-end template is completely separated from the rubber water stop 10111, and then continuously lifting upwards until the lower part is attached to the lower surface of the upper part 10502 of the front-end template.
As shown in fig. 24 to 25, the traveling crane section 2 includes a body longitudinal beam 201, a casting surface support device 202 connected to the middle of the lower surface of the body longitudinal beam 201, and tunnel side wall support devices 101 connected to the front and rear ends of the body longitudinal beam 201; a light-load section is arranged below the travelling crane section 2, and a steel rail for the trolley to travel is laid; the lower surfaces of the lower beams of the tunnel side wall supporting devices 101 at the front end and the rear end of the travelling crane section 2 are respectively connected with a pair of single-wheel bearing wheel sets 203 which run on the upper surface of the steel rail; the travelling crane section 2 further comprises an ear plate 204 arranged at the foremost end of the lower beam of the front side wall supporting device 101 and a clamping plate 205 arranged at the rearmost end of the lower beam of the rear side wall supporting device 101; the ear plate 204 is rotatably fitted into a groove of the clamping plate 205 by a pin.
In this embodiment, the single pin connection of the ear plate 204 and the clamping plate 205 is used for connection of the trolley sections.
As shown in fig. 26, the front and rear ear plates 204 and the clamping plates 205 of the traveling section 2 can connect the multiple traveling sections 2 front and rear by the pin shafts to form different lengths so as to meet different engineering conditions, and if the poured pavement is solidified slowly, the multiple traveling sections 2 can be properly added, so that the trolley can work normally under the condition that the poured pavement cannot bear heavy load.
As shown in fig. 27, the single-wheel load-bearing wheel set 203 includes a track wheel 2031, a support 2032, an axle 2033, a stop 2034 and a screw set 2035. The support 2032 is a door-shaped support, the upper plate is connected to the tunnel sidewall support device 101 through bolts, and grooves for assembling the wheel axle 2033 are formed on the two side plates. The outer ring of the track wheel 2031 is provided with a circle of groove for matching with a bottom steel rail, and the track wheel 2031 has a certain bearing function; a track wheel 2031 is rotatably mounted on the axle 2033. The axle 2033 has a groove at each end, the stop 2034 is engaged in the grooves at each end of the axle 2033, and is connected to the side plate of the support 2032 by a screw group 2035 to complete circumferential and axial fixation of the axle 2033, and the axle 2033 and the track wheel 2031 can be replaced quickly by detaching the stop 2034.
As shown in fig. 28, the front track block 3 includes a front track block body 301, a driving wheel 302 attached to a lower surface thereof, and a tunnel floor support 103. The two groups of driving wheels 302 are connected to two ends of the track transfer section main body 301, are used as driving devices of the trolley, run on the steel rails laid on the bottom surface of the tunnel, and can directly bear loads generated by the trolley and a pouring vehicle; the tunnel bottom supporting device 103 comprises a plurality of groups, is connected to the lower surface of the front rail transfer section main body 301 between the two groups of driving wheels 302, and is supported on the tunnel bottom when the trolley is used for pouring operation, so that the trolley is prevented from being turned over when the trolley is used for rail transfer.
As shown in fig. 29 and 30, the front rail segment body 301 is a grid structure formed by welding H-shaped steel, and rails and switches are laid on the upper surface of the grid structure, and the grid structure can support a casting vehicle to change tracks on the upper surface of the grid structure. The steel rail is changed from the front to the back from the turnout to be a single lane or a double lane. The front end of the front track-changing section 3 is a single lane, and 2 steel rails are arranged in total and correspond to the 2 steel rails at the rear end of the slope section 5 one by one; the rear end of the front rail changing section 3 is provided with two lanes, and the two lanes are totally 4 steel rails which correspond to the 4 steel rails at the front end of the pouring section 1 one by one.
In the embodiment, a pouring vehicle driven from the rear of the trolley stays on any one lane of the pouring section 1 for pouring operation, and drives forwards into the front track transfer section 3 after pouring is finished, and drives away from the trolley after entering the slope section 5 through the turnout; on the contrary, after the pouring vehicle drives onto the trolley from the front slope section 5, any lane can be selected to drive into the pouring section 1 through the front track transfer section 3 for pouring operation. The track on the ground is dismantled before pouring.
As shown in fig. 31 and 32, the driving wheel 302 is mounted on the lower surface of the track-changing section body 301, runs on the rail on the bottom surface of the track, and can bear the weight of the trolley and the pouring vehicle.
As shown in fig. 32, which is a schematic view of the track-changing section 3 before the platform is in a walking state, the tunnel bottom supporting device 103 is retracted to a certain distance from the ground so as to avoid interference with the tunnel bottom. The driving wheel 302 works to drive the trolley to walk.
Fig. 33 is a schematic view of the track-changing section 3 before the platform is poured, and the tunnel bottom supporting device 103 extends downwards to the bottom of the tunnel, and is matched with the driving wheel 302 to complete the support of the whole platform.
As shown in fig. 34, the rear rail-changing section 4 includes a rear rail-changing section main body 401 and a two-wheel load-bearing wheel set 402 connected to a lower surface thereof through a support pillar 403, and a casting surface support device 202 is further connected to the lower surface of the rear rail-changing section main body 401. The rear orbital transfer section main body 401 is identical to the front orbital transfer section main body 301 in structure and is of a grid structure formed by welding H-shaped steel. The double-wheel bearing wheel sets 402 are 4 groups in total, and are uniformly distributed on the lower surface of the rear track-changing section main body 401 from front to back, and the rear track-changing section 4 walks on the steel rail paved on the upper surface of the heavy-load road section through the double-wheel bearing wheel sets 402. The pouring surface supporting devices 202 are 3 groups in total, are connected between the front two groups of double-wheel bearing wheel sets 402 and the rear two groups of double-wheel bearing wheel sets 402 of the rear track section main body 401, are connected with the rearmost end 1 group of the rear track section main body 401, and are supported on the upper surface of a heavy-load section when a pouring vehicle passes above the rear track section main body, so that the trolley is stabilized, and the trolley is prevented from being laterally turned. The upper portion of the support post 403 is welded to the lower surface of the rear transition section body 401.
As shown in fig. 35, rails and switches are laid on the upper surface of the rear rail transition section main body 401, the rails are changed from a double lane to a single lane from the front to the rear through the switches, and a pouring vehicle is used for changing the lanes at the positions. The front end of the rear track transfer section 4 is provided with two lanes, and the two lanes are 4 steel rails which correspond to the four steel rails at the rear end of the travelling crane section 2 one by one; the rear end of the rear track transfer section 4 is a single lane, and the rear track transfer section is provided with 2 steel tracks which correspond to the 2 steel tracks at the front end of the rear slope section 6 one by one.
In the example, after the pouring vehicle drives onto the trolley from the rear slope section 6, any lane can be selected to drive into the pouring section 1 through the rear track transfer section 4 for pouring operation; pouring vehicles driven from the front of the trolley drive into the rear track transfer section 4 through the driving section 2 after pouring is finished, and drive out of the trolley through the turnout into the slope section 6.
As shown in fig. 36, the dual wheel set of load bearing wheels 402 includes a rail wheel 4021, a seat 4022, an axle 4023, a flap 4024 and a set of screws 4025. The support 4022 is a door-shaped support, the upper plate is connected with the support upright 403 through bolts, and two ends of two side plates are respectively provided with a groove for assembling the wheel shaft 4023; the number of the rail wheels 4021 is two, the outer ring of each rail wheel is provided with a circle of groove used for being matched with the bottom steel rail, and the rail wheels 4021 have a bearing effect. The rail wheel 4021 is rotatably mounted on the wheel shaft 4023; the number of the wheel shafts 4023 is two, and the two wheel shafts are respectively arranged in grooves formed in the front and the rear of side plates of the support 4022; the axle 4023 is provided with a groove at each of two ends, the baffles 4024 are clamped in the grooves at two sides of the axle 4023 and are connected to the side plates of the support 4022 through screw sets 4025, so that the axle 4023 and the rail wheel 4021 can be quickly replaced by detaching the baffles 4024.
As shown in fig. 37, a support column 403 is connected with the double-wheel bearing wheel set 402 through a bolt set, the support column 403 is formed by oppositely bending two rectangular steel plates in a C shape, and the rectangular steel plates at two sides are connected through bolts for clamping and fixing; the two pairs of rectangular steels are distributed on two sides of the vertical plate of the bent steel plate, and the upper surface and the lower surface are tightly attached to the upper flange and the lower flange of the bent steel plate, so that the stability of the supporting upright 403 is improved; the upper surface and the lower surface of the support column 403 are both planes, and are respectively connected with the lower surface of the rear rail-changing section main body 401 and the upper surface of the double-wheel bearing wheel set 402.
Fig. 38 is a schematic view of the track transfer section 4 after the platform is in a walking state, and the casting surface supporting device 202 is retracted to a certain distance from the ground so as to avoid interference with a casting pavement.
Fig. 39 is a schematic view of the track transfer section 4 after the platform is in a pouring operation state, and the pouring surface supporting device 202 extends downwards to a completely solidified road surface, so as to complete the support of the whole platform.
As shown in fig. 40, the front slope section 5 sequentially comprises, from front to back, two parallel raised base plates 503, two parallel base plate sections 502, and two parallel front slope sections 501; the pad plate section 502 is connected with the nose pad 503 through the extension splint 505, and a gap is reserved between the pad plate section 502 and the nose pad 503, so that the nose pad 503 can be turned up around an axis; the rear end of the warped head backing plate 503 is fixedly connected with one end of an extension clamping plate 505, the other end of the extension clamping plate 505 is hinged to the front end of the backing plate section 502, and the warped head backing plate 503 can rotate around the hinged position; the extension clamping plates 505 are connected to two outer sides of the warped head backing plate 503, so that the cast vehicle wheel rim cannot interfere with the inner convex part of the wheel rim when passing through. The rear end of the backing plate section 502 is connected with the front end of the front slope section 501. The lower surface of the front slope section 5 is horizontal and is in contact with the upper surface of the track at the bottom of the tunnel; the upper surface has a slope less than or equal to 4%, and the front end of the front slope section 5 is in smooth transition with the track at the bottom of the tunnel, so that a pouring vehicle can smoothly pass through the front slope section.
As shown in fig. 41, the front slope segment 501 includes a front slope segment body 5011 and a dual wheel load bearing wheel set 402 connected below the front slope segment body 5011 by a support post 5012. The main body 5011 of the front slope section 1 is two sections of parallel H-shaped steel which are connected together through rectangular steel, and a steel rail is laid on the upper surface of the main body. The support post 5012 has a structure similar to that of the support post 403, the lower surface is a plane, and the upper surface has the same gradient as the upper surface of the slope section 5. The number of the double-wheel bearing wheel sets 402 is plural, and the height of the supporting upright 5012 of each double-wheel bearing wheel set 402 is gradually increased from front to back, so that the front slope section main body 5011 is in a state of being inclined with a low front and a high back.
As shown in fig. 42, the pad segment 502 comprises a solid rectangular steel 5021 with an upper portion instead of a rail, and a channel steel 5022 with a lower portion in direct contact with the upper surface of a rail on the bottom of a tunnel; the number of the solid rectangular steels 5021 is two, and the center distance is the same as that of the bottom track; the number of the channel steel 5022 is two, and the center distance is the same as that of the bottom track; the central line of the solid rectangular steel 5021 on the same side and the central line of the channel steel 5022 and the central line of the bottom rail are located on the same plane, the solid rectangular steel 5021 and the channel steel 5022 are vertically welded together through the narrow-flange H-shaped steel, and the narrow-flange H-shaped steel is arranged from front to back from low to high, so that the solid rectangular steel 5021 is in an inclined state with the front low and the back high. The bottom of the narrow-flange H-shaped steel with two vertically connected sides is welded and reinforced by the narrow-flange H-shaped steel with the same type and the same type in a transverse connection mode. The pad segment 502 further comprises a rotating support arm 5023 and a limit shaft 5024 connected to the solid rectangular steel 5021, the end of the rotating support arm 5023 is rotatably connected to the outer side of the front end of the solid rectangular steel 5021, the limit shaft 5024 is connected to the rear of the rotating support arm 5023, and one end of the limit shaft 5024 protrudes out of the outer side of the solid rectangular steel 5021. The rotating supporting arm 5023 supports the main body to be narrow-flange H-shaped steel, and the front end of the main body is welded with a hanging ring formed by bending a steel bar; the limit shaft 5024 is fixedly connected between the two solid rectangular steels 5021.
As shown in fig. 42, the nose pad 503 comprises a pad rectangular steel 5031 and a limiting shaft 5032. The backing plate rectangular steel 5031 is formed by cutting two solid rectangular steels, the lower surfaces of the backing plate rectangular steels are planes, the upper surfaces of the backing plate rectangular steels are inclined planes, the lower surfaces of the nose-raised backing plates 503 are in direct contact with the upper surfaces of the steel rails at the bottom of the tunnel, and the upper surfaces of the rear ends of the nose-raised backing plates 503 are in smooth transition with the upper surfaces of the solid rectangular steels 5021; the limiting shaft 5032 is fixedly connected to the middle of the rectangular backing plate steel 5031, and one end of the limiting shaft 5032 is exposed out of the rectangular backing plate steel 5031.
As shown in fig. 42 and 43, the H-beam with a narrow vertical flange at the rearmost end of the tie plate section 502 is connected with a clamping plate 504 with a through hole. The backing plate section 502 is connected with the front slope section 501 through a clamping plate 504, a through hole is formed in a front end web plate of H-shaped steel of the front slope section main body 5011, and the web plate is connected with the clamping plate 504 through a pin shaft.
As shown in fig. 44, the inner side of the lower channel 5022 of the pad segment 502 directly contacts the upper surface of the bottom rail, and the carriage slides on the bottom rail when traveling.
As shown in fig. 45, when the trolley is in a pouring operation state, the rotating support arm 5023 rotates to the side edge to contact the upper surface of the channel 5022, at this time, a pouring vehicle can pass through the upper part, and the rim of the pouring vehicle does not interfere with the rotating support arm 5023.
In this embodiment, after the trolley completes the pouring of a section of tunnel, the trolley needs to walk forwards; the nose backing plate 503 is rotatory certain angle around the articulated department anticlockwise of rear end during platform truck walking state, makes the front end lift up one section distance, avoids the weak position of the in-process nose backing plate 503 front end of platform truck walking to bump with the track junction.
As shown in fig. 46 and 47, when the nose pad 503 is to be lifted, the rotary support arm 5023 is first rotated clockwise around the hinged position of the tail end by a certain angle to form an acute angle with the nose pad 503, and the front end of the rotary support arm 50023 is connected to the limit shaft 5024 by using a wire rope to fix the angle of the rotary support arm 5023. The chain block 506 is hung to the hanging ring at the front end of the rotating support arm 5023, the other end of the chain block is connected with the limiting shaft 5032 on the nose backing plate 503, and the nose backing plate 503 is lifted up by tightening the chain block 506. When the trolley needs to perform pouring operation, the chain block 506 is loosened until the head raising base plate 503 is reset, and the chain block 506 is taken down after the resetting is completed.
As shown in fig. 48, the rear slope section 6 includes a rear slope section 601, a pad plate section 502, and a nose pad plate 503 in sequence from front to back.
As shown in fig. 49, the structure of the rear slope section 1 section 601 is similar to that of the front slope section 501, and includes a front slope section 1 section main body 6011, and a double-wheel bearing wheel set 402 connected below the rear slope section 1 section main body 6011 through a support column 6012. The vertical narrow flange H-shaped steel at the rearmost end of the backing plate section 502 is connected with a clamping plate 504 with a through hole, and the backing plate section 502 is connected with the rear slope section 1 section 601 through the clamping plate 504.
Fig. 50 to 53 show the operation of a self-propelled double-lane inverted arch pouring trolley for tunnels according to the present invention.
FIG. 50 is a schematic view of the stations where the work components are located when the trolley travels to the road section to be cast. In the front slope section 5, the rotary support arm 5023 is rotated to a predetermined angle and fixed, and the head raising pad 503 is pulled up by the chain block 506 suspended at the front end. In the front track transfer section 3, the tunnel bottom surface supporting device 103 is lifted upwards to an initial station at a certain distance from the tunnel bottom surface, so that the condition that the tunnel bottom surface supporting device is not interfered with the bottom road surface is ensured in the travelling process of the trolley; the driving wheels 302 provide the trolley with power required for walking. In the pouring section 1, the tunnel side wall supporting device 101 rotates to the position above the main longitudinal beam 102, and no interference with the tunnel side wall is ensured in the trolley traveling process; the tunnel bottom supporting device 103 is lifted upwards to an initial station, and is away from the tunnel bottom by a certain distance, so that the interference with the bottom pavement is avoided in the trolley traveling process; the template device 105 is lifted upwards to an initial station through the template telescopic hydraulic cylinder 104, at the moment, the lower surfaces of the water retaining template 10501 and the front end template lower part 10503 are away from the bottom surface of the tunnel by a certain distance, the rear end template 10505 and the central ditch template 10504 are away from the upper surface of the road surface where pouring is completed by a certain distance, and interference cannot occur in the trolley walking process. In the travelling section 2, the tunnel side wall supporting device 101 rotates to a position above the main longitudinal beam 201, so that no interference with the tunnel side wall is ensured in the travelling process of the trolley; the pouring surface supporting device 202 is lifted upwards to the initial station, and is away from the upper surface of the pouring pavement by a certain distance, so that interference cannot occur in the trolley walking process. And in the rear track transfer section 4, the pouring surface supporting device 202 is lifted upwards to an initial station, and is away from the upper surface of the poured pavement by a certain distance, so that interference cannot occur in the running process of the trolley. The rear slope section 6 is the same as the front slope section 5, and the nose pad 503 is lifted.
FIG. 51 is a schematic view of the work station where each work component is positioned when the trolley arrives at the road section to be cast and is ready for casting. In the front slope section 5, the chain block 506 is loosened to lower the nose raising base plate 503 to the bottom surface to contact the upper surface of the tunnel steel rail, the chain block 506 is taken down, the rotary supporting arm 5023 is retracted to the horizontal position, and the rotary supporting arm 5023 is tightly attached to the upper surface of the channel steel 5022 in the base plate section 502. Front track change section 3, the driving wheel 302 stops running; the tunnel floor support means 103 extend down to the tunnel floor and support the front transition section 3. The pouring section 1 is used for supporting the pouring section 1 to prevent the trolley from turning over when a pouring vehicle passes through the tunnel bottom surface supporting device 103 which extends downwards to the bottom surface of the tunnel; the tunnel side wall supporting device 101 rotates to the side wall of the tunnel to complete the support of the trolley; the water retaining template 10501 descends to the bottom surface of the tunnel through the template telescopic hydraulic cylinder 104, blocks sewage and the like generated in the tunneling process of the front tunnel, and manually cleans the bottom surface of the tunnel to be poured. The traveling section 2, the casting surface support 202 is extended downward to the upper surface of the casting pavement. And a rear track transfer section 4, and the casting surface supporting device 202 extends downwards to the upper surface of the casting pavement. The rear slope section 6, like the front slope section, is lowered with the nose pad 503 to the bottom surface contacting the upper surface of the tunnel rail.
Fig. 52 is a schematic view of the working positions of the working components when the trolley performs pouring operation. Pouring the section 1, wherein the lower part 10503 of the front-end template descends to the bottom surface of the tunnel through the template telescopic hydraulic cylinder 104, the upper part 10502 of the front-end template descends and is tightly pressed after the rubber water stop 10111 is manually installed, and the remaining half length of the rubber water stop 10111 is positioned on one side to be poured; the rear end form 10505 and the center gutter form 10504 are lowered simultaneously, with the center gutter form front end fitting into a recess in the middle of the front end form upper portion 10502. And after the preparation is finished, the pouring vehicle drives the trolley to the position to be poured, and pouring operation is carried out.
Fig. 53 is a schematic diagram of the station where each working component of the trolley is located after the pouring of the road section to be poured is completed. After the pouring operation is finished, the pouring vehicle drives off the trolley; demolding after the poured pavement is solidified; after the section to be maintained which is poured in the previous section is solidified for a period of time and becomes a light-load section, laying steel rails on the upper surface; and switching the trolley to a driving state to drive to the next road section to be poured. The front slope section 5 and the nose pad 503 are lifted. The front track-changing section 3 is formed by lifting the tunnel bottom surface supporting device 103 upwards to an initial station; the driving wheels 302 provide the trolley with power required for walking. Pouring the section 1, wherein the tunnel side wall supporting device 101 rotates to a position above the main longitudinal beam 102; the tunnel bottom supporting device 103 is lifted upwards to an initial station; the template device 105 is lifted up to the initial station by the template extension hydraulic cylinder 104. In the travelling crane section 2, the tunnel side wall supporting device 101 rotates to a position above the main longitudinal beam 201; casting surface support 202 is raised upward to the initial station. And a rear track transfer section 4, wherein the pouring surface supporting device 202 is lifted upwards to an initial station. The rear slope section 6 is the same as the front slope section 5, and the nose pad 503 is lifted.
In conclusion, the self-propelled double-lane inverted arch pouring trolley for the tunnel is provided with a power system, can walk in the tunnel by self, and simplifies the travelling process of the trolley. Through the tunnel side wall supporting device, the pouring operation does not need to wait for the poured road section to be completely solidified; moreover, a belt conveying device is arranged along with the trolley, waste materials generated in the tunneling process can be timely conveyed out of the tunnel, and the space required by pouring vehicles is not occupied; the trolley adopts the structural design of double lanes, can be used for two rows of pouring vehicles to simultaneously carry out pouring operation, so that the inverted arch pouring process can be simplified by measures, and the construction period is shortened. In addition, the structural design of the double lanes can vacate one lane while pouring operation is carried out, and the lane is used for scheduling other engineering vehicles, so that the interference to tunneling work is effectively reduced. The formwork device is arranged below the trolley pouring section and can be automatically lifted, so that the manual formwork installation, demolding and other operations of workers are avoided, and the labor intensity of the workers and the probability of safety accidents are reduced.
It should be noted that the above mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited by the examples, and various changes and modifications can be made without departing from the scope of the claims.
Claims (10)
1. The utility model provides a platform truck is pour to self-propelled two-lane invert for tunnel which characterized in that: the trolley sequentially comprises a front slope section, a front track changing section, a pouring section, a travelling section, a rear track changing section and a rear slope section from front to back, and all the sections are connected through a pin shaft; double lanes are laid at the upper parts of the pouring section and the travelling crane section, and each lane comprises a pair of rails; single lanes are paved on the upper parts of the front slope section and the rear slope section respectively and comprise a pair of tracks; the upper surface of the front slope section slowly rises from front to back, and the upper surface of the rear slope section slowly falls from front to back.
2. The self-propelled two-lane invert casting trolley for tunnels according to claim 1, characterized in that: the pouring section comprises a tunnel side wall supporting device, a main body longitudinal beam, a tunnel bottom surface supporting device, a template telescopic hydraulic cylinder and a template device, wherein the tunnel bottom surface supporting device is connected below the main body longitudinal beam; the lower part of the main longitudinal beam is connected with a plurality of tunnel side wall supporting devices; the tunnel side wall supporting device is connected with the main body longitudinal beam through longitudinal beam fixing clamping plates and bolt sets, and the longitudinal beam fixing clamping plates are fixedly connected to two sides of the tunnel side wall supporting device in the width direction and are connected with the main body longitudinal beam through the bolt sets; the tunnel side wall supporting device comprises a supporting device main body, and a left supporting leg, a left connecting rod group, a right supporting leg and a right connecting rod group which are connected to two sides of the supporting device main body in the length direction; the supporting device main body is a space truss structure inverted trapezoidal truss formed by connecting two groups of identical inverted trapezoidal trusses through a cross beam, and the space truss structure inverted trapezoidal truss comprises an upper beam, a lower beam and two side beams, wherein the two side beams are respectively connected with the upper beam and the lower beam on two sides of the upper beam and the lower beam, the length of the upper beam is greater than that of the lower beam, and the inverted trapezoidal truss is in an isosceles trapezoid shape; four angles of 2 underbeams are respectively opened and are had 1 through-hole, and an auxiliary backing plate is respectively installed to every through-hole both sides, and auxiliary backing plate opens has a mounting hole, the mounting hole is relative with the through-hole, and auxiliary backing plate passes through bolt group and is connected with the underbeams.
3. The self-propelled two-lane invert casting trolley for tunnels according to claim 2, characterized in that: the left leg and the right leg comprise legs, connecting rods and rotating shafts; the rotating shaft penetrates through the through hole of the supporting device main body and the auxiliary base plate mounting hole and can freely rotate in the through hole, and two supporting legs are mounted at two ends of the rotating shaft respectively; the tail ends of the supporting legs are connected with boot plates, and a plurality of groups of anti-skid nails are arranged at the bottoms of the boot plates; the lower end of the connecting rod is sleeved on the rotating shaft in a non-rotatable manner, and the upper end of the connecting rod is hinged to the left connecting rod group or the right connecting rod group; the rotation strokes of the left leg and the right leg are different.
4. A self-propelled two-lane invert casting trolley for tunnels according to claim 3, characterized in that: the left connecting rod group and the right connecting rod group comprise short connecting rods, long connecting rods and telescopic hydraulic cylinders; one end of the short connecting rod is hinged with one end of the connecting rod, and the other end of the short connecting rod is hinged with one end of the long connecting rod; the middle part of the long connecting rod is hinged with a cylinder rod of the telescopic hydraulic cylinder; the other end of the long connecting rod is hinged to the lower part of the supporting device main body; the cylinder barrel of the telescopic hydraulic cylinder is hinged to the upper part of the main body of the supporting device.
5. The self-propelled two-lane invert casting trolley for tunnels according to claim 2, characterized in that: the template device comprises a water retaining template, a front end template, a rear end template and a central ditch template; the water retaining templates, the front end template and the rear end template are sequentially arranged from front to back, are arranged at the front end of the template device and are connected to the lower surface of the main longitudinal beam through template telescopic hydraulic cylinders; the radian of the bottom surface of the water retaining template is the same as that of the bottom surface of the tunnel; the front end template comprises a front end template upper part and a front end template lower part which are respectively driven by respective telescopic hydraulic cylinders arranged on the lower surfaces of the main longitudinal beams, the upper surface of the front end template lower part is provided with an embedded groove, and the bottom surface of the front end template upper part is matched with the embedded groove in shape and can be embedded in the embedded groove; the bottom surface of the lower part of the front end template is arc-shaped, and the radian is the same as that of the bottom surface of the tunnel; a groove with the same shape as the cross section of the central ditch template is formed in the middle of the upper part of the front end template and the rear end template; the central ditch template is connected to the lower surface of the main longitudinal beam through a template telescopic hydraulic cylinder and can be embedded into the groove; the tunnel bottom surface supporting device is connected to the lower surface of the main longitudinal beam between the water retaining template and the front end template and comprises a bearing beam and two hydraulic cylinders connected to two ends of the bearing beam, and the bearing beam is fixed to the lower surface of the main longitudinal beam.
6. The self-propelled two-lane invert casting trolley for tunnels according to claim 1, wherein: the travelling crane section comprises a main longitudinal beam, a pouring surface supporting device connected to the middle of the lower surface of the main longitudinal beam and tunnel side wall supporting devices connected to the front end and the rear end of the main longitudinal beam; the driving section further comprises an ear plate connected to the front side of the front-end tunnel side wall supporting device and a clamping plate connected to the rear side of the rear-end tunnel side wall supporting device, the ear plate and the clamping plate can be used for connecting the multiple sections of driving sections through pin shafts, and the middle of the lower surface of the lower cross beam of the front and rear two groups of tunnel side wall supporting devices of the driving section is connected with a single-wheel bearing wheel set.
7. The self-propelled two-lane invert casting trolley for tunnels according to claim 1, characterized in that: the front track-changing section comprises a front track-changing section main body, and driving wheels and a tunnel bottom surface supporting device which are connected to the lower surface of the front track-changing section main body, wherein the two groups of driving wheels are respectively connected to two ends of the track-changing section main body; the tunnel bottom surface supporting devices are provided with a plurality of groups and are connected between two groups of driving wheels; the upper surface of the front rail-changing section is paved with a single lane, double lanes and switches, the double lanes comprise four steel rails, the single lane comprises two steel rails, the double lanes comprise the front single lane and the rear single lane are connected through the switches.
8. The self-propelled two-lane invert casting trolley for tunnels according to claim 1, wherein: the rear track-changing section comprises a rear track-changing section main body and two-wheel bearing wheel sets connected to the lower surface through a support upright post, wherein the two-wheel bearing wheel sets are 4 in number and are uniformly distributed on the lower surface of the rear track-changing section main body; the rear rail-changing section is characterized in that a single lane, a double lane and a turnout are laid on the upper surface of the rear rail-changing section, the double lane comprises four steel rails, the single lane comprises two steel rails, the double lane is arranged in front of the single lane and behind the single lane, and the double lane are connected through the turnout.
9. The self-propelled two-lane invert casting trolley for tunnels according to claim 1, wherein: the front slope section sequentially comprises a nose backing plate, a backing plate section and a front slope section from front to back; wherein, the backing plate section passes through the extension splint with the first backing plate of waning and is connected, and extension splint are connected to the terminal both sides of the first backing plate of waning, and extension splint one end articulates in backing plate section front end, the extension splint other end and the first backing plate rear end fixed connection of waning, the first backing plate of waning can rotate around articulated department, and backing plate section rear end is connected with preceding slope section front end.
10. The self-propelled two-lane invert casting trolley for tunnels according to claim 9, wherein: the front slope section comprises a front slope section main body and a double-wheel bearing wheel set connected below through a support upright post, wherein the front slope section main body is formed by connecting two sections of parallel H-shaped steel through rectangular steel; the base plate section comprises two solid rectangular steels with the upper parts replacing the rails and channel steels with the lower parts directly contacting with the steel rails on the bottom surface of the tunnel, and the center distance is the same as that of the rails at the bottom; the center distance of the two channel steels is the same as that of the bottom track, the center line of the solid rectangular steel on the same side is positioned on the same plane with that of the bottom track, and the solid rectangular steel and the channel steels are vertically connected together through the narrow flange H-shaped steel; the backing plate section also comprises a rotating support arm and a limiting shaft which are connected with the solid rectangular steel, wherein the tail end of the rotating support arm is rotatably connected with the front end of the solid rectangular steel, and the limiting shaft is connected behind the rotating support arm; the structure of the rear slope section is the same as that of the front slope section.
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CN202220818543.4U CN217001887U (en) | 2022-04-11 | 2022-04-11 | A platform truck is pour to self-propelled two-lane invert for tunnel |
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CN202220818543.4U CN217001887U (en) | 2022-04-11 | 2022-04-11 | A platform truck is pour to self-propelled two-lane invert for tunnel |
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