CN114810151B - Needle beam trolley - Google Patents
Needle beam trolley Download PDFInfo
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- CN114810151B CN114810151B CN202210562681.5A CN202210562681A CN114810151B CN 114810151 B CN114810151 B CN 114810151B CN 202210562681 A CN202210562681 A CN 202210562681A CN 114810151 B CN114810151 B CN 114810151B
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- trolley
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- seat
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/102—Removable shuttering; Bearing or supporting devices therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Mining & Mineral Resources (AREA)
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a needle beam trolley. The needle beam and the trolley, the trolley walks along the needle beam; the needle beam comprises a plurality of sections of needle beam units, and the needle beam units are detachably connected; the trolley comprises a plurality of trolley units. And during construction of the straight line segment, the needle beam unit and the trolley unit are assembled into an integral lining construction. During construction of the arc section, the trolley is split into mutually independent units, and the trolley unit is walked to the needle beam unit; disassembling each needle beam unit, and transporting out the redundant needle beam units; lining construction is carried out through the front needle beam unit and the upper trolley unit; demoulding after construction is completed; the needle beam units and the trolley units are independently and excessively bent. And the trolley units are designed to comprise a plurality of side die assemblies so as to improve clearance after die stripping, so that each trolley unit cannot interfere with the inner wall of the tunnel when being bent excessively. Greatly simplifies the construction process, reduces the construction difficulty, improves the construction efficiency and shortens the construction period.
Description
Technical Field
The invention belongs to the technical field of tunnel construction equipment, and particularly relates to a needle beam trolley.
Background
The design length of a common needle beam trolley is 12 meters. The current common segmentation mode is 7.5 m+4.5 m, and for tunnels with small radius curves (the radius of the curve is smaller than 50 m), the tunnel allows the trolley of 4.5 m segments to pass through due to the trolley design and template segmentation problem, the 7.5 m segments can pass through the arc segments only by disassembly, and the arc segments are constructed from the 4.5 m trolley lining to the next straight segment after construction, and the 7.5 m trolley is spliced into a whole. However, if the length of the trolley is simply shortened, the construction period cannot be ensured.
Disclosure of Invention
The invention aims to provide a needle beam trolley which has high construction efficiency and can ensure the construction period.
The needle beam trolley provided by the invention comprises a needle beam and a trolley, wherein the trolley walks along the needle beam;
the needle beam comprises a plurality of sections of needle beam units, and the needle beam units are detachably connected;
the trolley comprises a plurality of sections of trolley units;
the trolley unit comprises a trolley main body, a supporting leg assembly, a top die assembly, a bottom die assembly and a plurality of side die assemblies, wherein the supporting leg assembly, the top die assembly, the bottom die assembly and the side die assemblies are connected to the trolley main body; the landing leg assembly comprises landing legs, the top die assembly comprises a top die, the bottom die assembly comprises a bottom die, the side die assembly comprises side dies, two ends of the top die are respectively hinged with the side dies on two sides, the other ends of the side dies are hinged with the side dies or the bottom die, the top die, the bottom die and the side dies move along the radial direction of the trolley main body, and the top die, the bottom die and the side dies enclose a circular template system during ejection die assembly.
The trolley comprises two trolley units with equal length, and the two trolley units are connected through bolts;
the trolley main body comprises a portal frame, an upper longitudinal beam, a lower longitudinal beam, an upper cross beam, a lower cross beam, an upper travelling mechanism and a lower travelling mechanism; the upper longitudinal beams are connected to the door frames through jacking cylinders, the upper transverse beams are connected between the two upper longitudinal beams, the upper travelling mechanism is arranged below the tops of the door frames, and the lower travelling mechanism is arranged on the lower transverse beams;
one end of the lower longitudinal beam is provided with a connecting end plate, and a connecting hole group is arranged on the connecting end plate; the trolley units are arranged in an aligned mode and assembled through fasteners matched with the connecting hole groups.
The top die is an arc-shaped die, two ends of the top die are provided with hinge lugs, and the middle part of the top die is provided with a grouting hole and a blocking hole component; the hole blocking assembly comprises a sleeve, a hole blocking cover and a handle, wherein the sleeve is arranged outside the grouting hole, the handle is an L-shaped handle, the hole blocking cover is arranged below the grouting hole, and one end of the handle penetrates through the sleeve and is connected with the hole blocking cover; the top die is connected with the trolley main body through a screw rod assembly and a jacking oil cylinder;
the bottom die is an arc die, two ends of the bottom die are provided with hinge lugs, and grouting holes are formed in the bottom die; the bottom film is connected with the trolley main body through the screw rod assembly and the jacking oil cylinder.
The side die assembly comprises an upper side die assembly and a lower side die assembly; the upper side die assembly comprises an upper side die, and the upper side die is connected with the trolley main body through a screw rod assembly and a jacking oil cylinder; the lower side die assembly comprises a lower side die, and the lower side die is connected with the trolley main body through a screw rod assembly and a jacking oil cylinder.
The upper side die is an arc die, one end of the upper side die is provided with a hinge lug, the other end of the upper side die is provided with a connecting pin, the inner edge of the upper side die is provided with a pushing seat, and the outer edge of the upper side die is provided with a recovery seat; the lower side die is an arc die, one end of the lower side die is provided with a hinge hole, and the other end of the lower side die is provided with a hinge lug; when the mold is closed, the upper side mold is hinged with the top mold through the hinge lug, the upper side mold is connected with the lower side mold through the connecting pin matched with the hinge hole, and the other end of the lower side mold is hinged with the bottom mold through the hinge lug.
The needle beam comprises a first needle beam unit, a second needle beam unit and a third needle beam unit which are sequentially arranged along the axis, and all the needle beam units are detachably connected.
The first needle beam unit comprises a first needle beam main truss, a front supporting leg assembly and a supporting leg installation seat; the front supporting leg assembly and the supporting leg installation seat are respectively arranged at two ends of the first needle beam main truss;
the first needle beam main truss comprises a side truss, an end cross beam, a connecting truss and an end connecting plate; one end of the side truss is provided with a connecting hole group, the top of the side truss is provided with an upper guide rail, and the bottom of the side truss is provided with a lower guide rail; the end connecting plate comprises a vertical plate and a double-lug plate group, the vertical plate is a rectangular plate, a plurality of groups of connecting holes are formed in the vertical plate, the double-lug plate group is connected to the inner side of the vertical plate, and the end connecting plate is fixedly connected to the outside of the end part of the side truss, provided with the connecting hole group, through the vertical plate; the side trusses are arranged in parallel, the end cross beams are connected to the end parts of the side trusses, and each connecting truss is connected between the side trusses and positioned between the end cross beams.
The front support leg assembly comprises a fixed seat, a first lifting oil cylinder, a front support leg and a base; the fixed seat is an H-shaped seat body and comprises a horizontal section and a vertical section, the vertical section comprises a top flange and a seat sleeve, the seat sleeve is a cuboid sleeve, the top flange is connected to the top end of the seat sleeve, and the vertical section is connected to the outside of the horizontal section through the side surface of the seat sleeve; the top end of the front supporting leg is provided with an opening, a pair of ear plates are arranged in the front supporting leg, and a hinging seat is arranged below the bottom of the front supporting leg; the front supporting leg is coaxially arranged in the seat sleeve, the top of the first lifting oil cylinder is assembled with the top flange, the bottom of the first lifting oil cylinder is connected with the lug plate, and the base is hinged under the hinging seat; the front supporting leg component is connected below the end cross beam through a translation oil cylinder and a U-shaped baffle.
An ear seat is arranged on the horizontal section of the fixed seat, and an ear seat is arranged on the inner side of the side truss; the translation oil cylinder is arranged between the two lug seats and used for regulating and controlling the horizontal position of the front supporting leg assembly; the U-shaped baffle is coated under the horizontal section, and the top of the U-shaped baffle is connected with the end cross beam;
the base is an arch-shaped base body, the horizontal edge of the base is provided with an ear plate, and the lower part of the arc edge of the base is provided with a through groove for reducing weight of water;
the landing leg installation seat comprises a sliding sleeve and a top seat;
the sliding sleeve comprises a sleeve main body, an end plate and a single-ear plate; the sleeve main body is a cuboid sleeve with two open ends, and the top sleeve wall of the sleeve main body is provided with a pin hole; the end plate is a rectangular plate, the upper connecting hole of the rectangular plate is connected to the outer side of the sleeve main body; the plurality of single-ear plates are uniformly arranged and connected to the side edges of the end plates;
the footstock includes rectangular plate and articulated seat, and articulated seat rigid coupling is under the rectangular plate, and the footstock can dismantle the top of connecting in the cover main part through the rectangular plate, is connected through the round pin axle that passes the pinhole between articulated seat and the cover main part.
The second needle beam unit comprises a second needle beam main truss, and two ends of the second needle beam main truss are provided with end connecting plates;
the third needle beam unit comprises a third needle beam main truss, a supporting leg mounting seat and a rear supporting leg; the support leg installation seat is assembled at one end of the third needle beam main truss through a bracket, and the rear support leg is detachably connected below the support leg installation seat at one end;
the support is an H-shaped support and comprises a horizontal section and a vertical section, the two vertical sections are respectively arranged at two ends of the horizontal section, and the horizontal section is connected under the third needle beam main truss through a U-shaped baffle and a translation cylinder; the rear support leg flange is connected under the support leg mounting seat, and a pull rod is arranged between the two rear support legs.
When the invention is used for constructing the straight line segment of the tunnel, the needle beam unit and the trolley unit are assembled into an integral lining construction, so that the integral length is ensured, and the construction efficiency is not reduced. When the trolley is used for constructing the tunnel arc section, the trolley is split into two mutually independent units, and the trolley units are walked to the corresponding needle beam units; disassembling each needle beam unit, and transporting the needle beam units with the upper parts not bearing the trolley units out of the tunnel; lining construction is carried out through the front needle beam unit and the trolley unit on the front needle beam unit; demolding the trolley unit after the construction of the arc section is completed, and recovering the die; the needle beam unit and the trolley unit are bent excessively. Meanwhile, the trolley units are designed to comprise a plurality of side die assemblies so as to improve clearance after die stripping, and each trolley unit cannot interfere with the inner wall of a tunnel when being bent excessively. And after the curve construction is completed, combining the two curves into a trolley. Therefore, the construction of lining the straight line segment by two sections of trolleys is realized, the arc segment is constructed by lining one section of trolley in the two sections of trolleys, and the arc segment can be completely bent by only integrally disassembling and assembling each part without dismantling other parts. Greatly simplifies the construction process, reduces the construction difficulty, improves the construction efficiency and shortens the construction period.
Drawings
FIG. 1 is an isometric view of a preferred embodiment of the invention.
Fig. 2 is an enlarged schematic view of the needle beam in the preferred embodiment.
Fig. 3 is an enlarged schematic view of the first needle beam unit in the preferred embodiment.
Fig. 4 is an enlarged schematic view of the front leg assembly of the preferred embodiment.
Fig. 5 is an enlarged schematic view of the leg mount in the present preferred embodiment.
Fig. 6 is an enlarged schematic view of the second needle beam unit in the preferred embodiment.
Fig. 7 is an enlarged schematic view of the third needle beam unit in the preferred embodiment.
Fig. 8 is a front view enlarged schematic diagram of the carriage unit in the present preferred embodiment.
Fig. 9 is a front view of the top mold in the preferred embodiment.
Fig. 10 is an enlarged schematic top view of the top die in the preferred embodiment.
Fig. 11 is a front view enlarged schematic of the upper die in the preferred embodiment.
Fig. 12 is a front view of the lower die in the preferred embodiment.
Fig. 13 is an enlarged view of the bottom die in the preferred embodiment.
Fig. 14 is a schematic view showing a construction state of the present preferred embodiment in construction of a straight section of a tunnel.
Fig. 15 is a schematic diagram showing a state of disassembly of the trolley before the construction of the arc section of the tunnel according to the preferred embodiment.
Fig. 16 is a schematic view showing the state of splitting the needle beam before the construction of the arc section of the tunnel according to the preferred embodiment.
Fig. 17 is a schematic view of the construction of the arc section of the tunnel and the over-bending state according to the preferred embodiment.
Fig. 18 is a schematic view showing the first stage of demolding in the present preferred embodiment.
FIG. 19 is a schematic view showing the second stage of demolding in the preferred embodiment.
FIG. 20 is a schematic diagram showing the third step of demolding in the preferred embodiment.
FIG. 21 is a schematic diagram showing the fourth step of demolding in the preferred embodiment.
FIG. 22 is a schematic diagram showing the demolding fifth step in the present preferred embodiment.
FIG. 23 is a schematic diagram showing a sixth step of demolding in the present preferred embodiment.
Reference numerals
A is a needle beam, the needle beam is arranged on the needle beam,
1-a first needle beam unit,
11-a first needle beam main truss, 111-a side truss, 112-an end beam, 113-a connecting truss, 114-an end connecting plate, 115-an upper guide rail, 116-a lower guide rail,
12-front leg components, 121-fixing seats, 122-lifting cylinders, 123-front legs, 124-bases, 125-U-shaped baffle plates and 126-translation cylinders,
13-a supporting leg mounting seat, 131-a sliding sleeve and 132-a top seat;
2-a second needle beam unit,
21-a second needle beam main truss, 22-a guide wheel;
3-third needle beam units, 31-third needle beam main trusses, 32-brackets, 33-rear supporting legs and 34-pull rods;
4-needle beam connecting plates;
b is a trolley, which is used for the automatic control of the vehicle,
a 5-trolley unit, wherein the trolley unit comprises a trolley unit,
51-trolley body, 511-portal frame, 512-upper longitudinal beam, 513-lower longitudinal beam, 514-upper cross beam, 515-lower cross beam, 516-upper running mechanism, 517-lower running mechanism,
52-a leg assembly, which is provided with a plurality of legs,
53-top die assembly, 531-top die, 532-baffle assembly,
54-upper side die assembly, 541-upper side die, 542-screw seat, 543-connecting pin, 544-pushing seat, 545-recovery seat,
55-lower side die assembly 551-lower side die,
56-a bottom die assembly 561-a bottom die;
a, pushing an oil cylinder, b, a screw rod assembly and c, hinging an ear.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, unless otherwise specifically defined and limited. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, this needle beam trolley disclosed in the present embodiment includes a needle beam a and a trolley B.
As shown in fig. 2, the needle beam a comprises a first needle beam unit 1, a second needle beam unit 2 and a third needle beam unit 3 which are sequentially arranged along the axis, and all the needle beam units are connected through bolts.
As shown in fig. 3, the first needle beam unit 1 includes a first needle beam main truss 11, a front leg assembly 12, and a leg mount 13; the front leg assembly 12 and the leg mounting base 13 are respectively arranged at two ends of the first needle beam main truss 11.
The first needle beam main truss 11 is a rectangular truss including side trusses 111, end beams 112, connecting trusses 113 and end connection plates 114. One end of the side truss 111 is provided with a connection hole group, the top of the side truss 111 is provided with an upper guide rail 115, the bottom is provided with a lower guide rail 116, and a pair of side trusses 111 are arranged in parallel. The end beams 112 are connected to a pair of side trusses 111 as connecting beams, and each connecting truss 113 is connected between the side trusses 111 at a region between the end beams 112. The end connection plate 114 comprises a vertical plate and a double-lug plate group, the vertical plate is a rectangular plate, a plurality of groups of connection holes are formed in the vertical plate, the double-lug plate group is connected to the inner side of the vertical plate, and the end connection plate 114 is fixedly connected to the outside of the end part, provided with the connection hole group, of the side truss 111 through the vertical plate.
As shown in fig. 4, the front leg assembly 12 includes a fixed base 121, a lift cylinder 122, a front leg 123, and a base 124.
The fixing seat 121 is an H-shaped seat body, and is connected to the lower part of the end beam 112 of the first needle beam main truss 11 by a horizontal section thereof, and a U-shaped baffle 125 is provided to ensure connection stability. The vertical section of fixing base 121 includes top flange and seat cover, and the seat cover is the cuboid cover, and top flange joint is in the top of seat cover, and vertical section is outside the horizontal section with its side connection.
A pair of lugs are arranged on the horizontal section of the fixing seat 121, lugs are also arranged on the inner sides of the side trusses 111 on two sides, a translation oil cylinder 126 is arranged between the lugs of the horizontal section and the lugs of the side trusses 111 on the same side, the fixing seat 121 is connected through the pair of translation oil cylinders 126, and the U-shaped baffle 125 is coated under the horizontal section and the top of the U-shaped baffle is connected with the end cross beam 112. In actual use, the translation cylinder 126 works to adjust the relative horizontal position of the fixing seat 121 and the first needle beam main truss 11.
The lifting cylinder 122 is disposed in the vertical section of the fixing base 121, and has a top connected to the top flange and a bottom connected to the front leg 123.
The front leg 123 is a rectangular parallelepiped base, with an opening at its top end, a pair of ear plates provided therein for assembly with the lift cylinder 122, and a hinge base provided under its bottom for mounting the base 124.
The base 124 is an arcuate base body, with an ear plate on a horizontal edge thereof for connection to the front leg 123, and a through slot below the arcuate edge thereof for weight-reducing water.
As shown in fig. 5, the leg mount 13 includes a slide sleeve 131 and a top mount 132.
The sliding sleeve 131 includes a sleeve body, an end plate, and a monaural plate; the sleeve main body is a cuboid sleeve with two open ends, and the top sleeve wall of the sleeve main body is provided with a pin hole; the end plate is a rectangular plate, the upper connecting hole of the rectangular plate is connected to the outer side of the sleeve main body; the plurality of single ear plates are uniformly arranged and connected to the side edges of the end plates.
The footstock 132 includes rectangular plate and articulated seat, and articulated seat rigid coupling is under the rectangular plate, and footstock 132 can dismantle the top of being connected in the cover main part through the rectangular plate, is connected through the round pin axle that passes the pinhole between articulated seat and the cover main part.
During assembly, the supporting leg mounting seat 13 is inserted between the double lug plate groups of the first needle beam main truss 11 through the lug plates, and the pin shafts are inserted to complete hinging; the supporting leg mounting seat 13 is rotated to the outside of the first needle beam main truss 11, a pin shaft for positioning is driven into the pin hole of the self-sliding sleeve 131, at the moment, the connecting hole on the end plate is aligned with the connecting hole group on the end connecting plate, and the connection can be completed by driving corresponding nuts matched with bolts. And when the pin is removed, the pin shaft in the pin hole is pulled out, the bolt and the nut are removed, the supporting leg mounting seat 13 is rotated into the first needle beam main truss 11, and then the pin shaft is driven into the pin hole. The support leg mounting base 13 does not need to be completely removed; on the other hand, the assembling among the multiple needle beam units can be conveniently carried out through the arrangement of the end plates of the first needle beam main truss 11.
As shown in fig. 6, the second needle beam unit 2 includes a second needle beam main truss 21, and the second needle beam main truss 21 is similar to the first needle beam main truss 11 in structure, except that both ends of a side truss in the second needle beam main truss 21 are provided with a connection hole group, and a plurality of guide wheels 22 are provided at the top of the second needle beam main truss 21 so as to cooperatively install a traveling mechanism.
As shown in fig. 7, the third needle beam unit 3 includes a third needle beam main truss 31, a leg mount 13, a bracket 32, a rear leg 33, and a tie rod 34.
The third needle beam main truss 31 is similar in structure to the first needle beam main truss 11 except that a plurality of guide wheels are provided at the top of the third needle beam main truss 31 to cooperatively mount the traveling mechanism. The trolley B is driven to walk through the traveling mechanism.
The bracket 32 is an H-shaped bracket and comprises a horizontal section and a vertical section, the two vertical sections are respectively arranged at two ends of the horizontal section, and the horizontal section is connected under the third needle beam main truss 31 through a U-shaped baffle and a shifting cylinder; the landing leg mount is assembled in the horizontal segment of support, and back landing leg 33 flange joint is under the landing leg mount, is equipped with pull rod 34 in order to improve the supporting stability between two back landing legs 33.
When the first needle beam unit 1 and the second needle beam unit 2 are assembled, a needle beam connecting plate 4 is arranged at the position of a side truss connecting hole group of the first needle beam unit 1 and the side truss connecting hole group of the second needle beam unit; the connecting hole groups of the vertical plates of the two connecting end plates are locked by corresponding nuts matched with bolts; the ear plates of the two supporting leg installation seats 13 are connected with the double ear plate group of the first needle beam unit 1 through pin shafts. The detachable connection between the first needle beam unit 1 and the second needle beam unit 2 is achieved. When the second needle beam unit 2 and the third needle beam unit 3 are assembled, the needle beam connecting plates 4 are arranged at the positions of the connecting hole groups, and the connecting hole groups of the vertical plates of the two connecting end plates are locked by corresponding nuts matched with bolts; thereby realizing the assembly among the needle beam units.
As shown in fig. 1, the trolley B includes two trolley units 5, and the difference in length of the two trolley units 5 is less than 1mm to ensure that overbending can be achieved.
As shown in fig. 8, the carriage unit 5 includes a carriage main body 51, a leg assembly 52, a top die assembly 53, an upper die assembly 54, a lower die assembly 55, and a bottom die assembly 56.
The trolley body 51 includes a portal 511, an upper side rail 512, a lower side rail 513, an upper cross rail 514, a lower cross rail 515, an upper running gear 516, and a lower running gear 517; one end of the lower longitudinal beam 513 is provided with a connecting end plate, the connecting end plate is a rectangular plate, and a connecting hole group is arranged on the connecting end plate; the pair of lower longitudinal beams 513 are arranged in parallel, the lower cross beam 515 is connected between the two lower longitudinal beams, the door frames are arranged in parallel and straddled on the lower longitudinal beams, the tops of the door frames are connected through a pull rod, the upper longitudinal beam is connected to the door frames through a pushing oil cylinder, the upper cross beam is connected between the two upper longitudinal beams, the upper travelling mechanism is arranged below the tops of the door frames, and the lower travelling mechanism is arranged on the lower cross beam.
The leg assembly 52 includes telescoping legs that are connected under the side sill 513 to support the trolley body 51. The trolley body 51 and the leg assembly 52 are generally known in the art, and thus will not be described in detail.
As shown in fig. 8, 9 and 10, the top mold assembly 53 includes a top mold 531, a pushing cylinder a and a screw assembly b. The top mold 531 is an arc mold, two ends of the top mold are provided with hinge lugs, and the middle part of the top mold is provided with a grouting hole and a blocking hole component 532; the hole blocking assembly comprises a sleeve, a hole blocking cover and a handle, wherein the sleeve is arranged outside the grouting hole, the handle is an L-shaped handle, the hole blocking cover is arranged below the grouting hole, and one end of the handle penetrates through the sleeve and is connected with the hole blocking cover. The screw rod assembly b comprises a screw rod sleeve, a screw rod and a nut seat, the nut seat is coaxially arranged at the top of the screw rod sleeve, the screw rod is in threaded connection with the screw rod sleeve and the nut seat, and the screw rod can be ejected or retracted by rotating the nut seat along the axial movement. The pushing cylinder a is arranged on the upper cross beam by the cylinder body, and the piston end of the pushing cylinder a is connected with the middle part of the top die. The screw rod assemblies b are arranged on the upper cross beam and are respectively arranged at two sides of the pushing cylinder a, and the outer ends of the screw rods are connected with the top die.
As shown in fig. 8 and 11, the upper die assembly 54 includes an upper die 541, a pushing cylinder a, and a screw assembly b. The upper side die 541 is an arc-shaped die, and is provided with a plurality of screw holders 542 along the arc length direction, one end of the upper side die is provided with a hinge lug c, and the other end of the upper side die is provided with a connecting pin 543. The upper die 541 is further provided with a pushing seat 544 and a recovery seat 545, the pushing seat 544 is located at the inner edge of the upper die 541, and the recovery seat 545 is located at the outer edge of the upper die 541. The upper die assemblies 54 are arranged in pairs, and a pair of upper die assemblies 54 are symmetrically arranged on both sides of the gantry. When the upper side die assembly is installed, the cylinder body of the pushing cylinder a is hinged with the door frame, the piston end is hinged with the pushing seat or the recovery seat of the upper side die, the upper side die is connected with the corresponding screw rod assembly through the screw rod seats, the other end of the screw rod assembly is arranged on the trolley main body, one end of the upper side die is connected with the top die through the hinge lug c, and the other end of the upper side die is assembled with the lower side die assembly through the connecting pin.
As shown in fig. 8 and 12, the lower die assembly 55 includes a lower die 551, a pushing cylinder a, and a screw assembly b. The lower side die 551 is an arc die, one end of which is provided with a hinge hole, and the other end is provided with a hinge lug. One end of the pushing cylinder a is hinged with the lower cross beam of the trolley body, and the other end of the pushing cylinder a is hinged with the lower side die 551. One end of the screw rod assembly b is hinged with the trolley main body, and the other end of the screw rod assembly b is hinged with the lower side die 551. A pair of lower die assemblies 55 are symmetrically arranged at both sides of the portal frame, the lower die assemblies 55 are assembled with the upper die assemblies and the bottom die assemblies 56 by the lower dies 551 thereof, and the lower dies 551 are hinged with the upper die at the high ends and with the bottom die assemblies at the low ends.
As shown in fig. 8 and 13, the bottom die assembly 56 includes a bottom die 561, a pushing cylinder a, and a screw rod assembly b. The bottom die 561 is an arc-shaped die, two ends of which are provided with hinge lugs, and the entity of which is provided with grouting holes. One end of the pushing cylinder a is connected with the lower cross beam of the trolley main body 21, and the other end is connected with the bottom die 561. One end of the screw assembly b is connected to the carriage body 21, and the other end is connected to the bottom die 561.
When the trolley B is assembled, a pair of trolley units 5 are aligned and connected through fasteners such as bolts, nuts and the like matched with the connecting end plates of the side sills. When the trolley B is assembled with the needle beam A, an upper travelling mechanism of the trolley B is arranged on an upper guide rail of the needle beam side truss, and a lower travelling mechanism is assembled below a lower guide rail of the needle beam side truss.
When the embodiment works in the straight line section of the tunnel, the three needle beam units are connected into a whole through bolts, and the horizontal positions of the leg assemblies are adjusted through the translation oil cylinders so as to be aligned; the pair of trolley units are aligned and connected into a whole through fasteners such as bolts, nuts and the like matched with the connecting end plates of the lower longitudinal beams. The upper travelling mechanism of the trolley is arranged on the upper guide rail of the needle beam side truss, and the lower travelling mechanism is assembled below the lower guide rail of the needle beam side truss. And (5) assembling into an integral lining construction. As shown in fig. 14.
The scheme when the straight line section is constructed and needs to enter the turning section is as follows:
step one, splitting a trolley into two mutually independent units, walking one trolley unit to a first needle beam unit, and walking the other trolley unit to a second needle beam unit. As shown in fig. 15.
And secondly, disassembling the third needle beam unit from the second needle beam unit, and grounding the supporting leg assemblies at two ends of the second needle beam unit. As shown in fig. 16.
And thirdly, disassembling the first needle beam unit and the second needle beam unit, and supporting each supporting leg to the ground. As shown in fig. 17, the second needle beam unit at the front end and the trolley unit thereon are short in length, so that the lining construction can be performed on the curved road, and the first needle beam unit and the trolley unit thereon can be entirely bent in the constructed lining without disassembly.
Meanwhile, in order to ensure that interference phenomenon with the inner wall of the tunnel occurs when the tunnel is excessively bent, the demolding clearance is increased. When the mold is bent, demolding is carried out according to the following steps, so that the distance between the outer edge of the mold and the inner wall of the tunnel can be increased.
In normal operation, as shown in fig. 8, each template is supported and ejected out through the pushing oil cylinder and the screw rod assembly to form a circle matched with the inner wall of the tunnel. When demolding is needed, in order to increase the demolding clearance, the specific scheme is as follows:
and firstly, removing the screw rod assembly from the template, and withdrawing the screw rod assembly. As shown in fig. 18.
And secondly, recycling the pushing cylinder of the upper side die assembly, as shown in fig. 19.
Thirdly, assembling a screw rod assembly corresponding to the upper side die assembly with the upper side die, replacing a connection point of the pushing cylinder and the upper side die from a pushing seat to a recovery seat, and then removing connection between the screw rod assembly and the upper side die; the pushing cylinder is continuously recovered as shown in fig. 20.
Fourthly, recycling a pushing oil cylinder of the top die assembly; as shown in fig. 21.
Fifthly, recycling a pushing oil cylinder of the lower side die assembly; as shown in fig. 22.
Step six, lifting up each supporting leg component of the needle beam to enable the trolley to be lifted up to about 400mm as shown in fig. 23; and (5) demoulding is completed.
Through splitting the mould of a whole set into six parts, can improve drawing of patterns headroom, and interfere in the curved in-process and appear in platform truck side top, so can further improve the headroom of side top through the conversion of upside mould subassembly hookup point position, further avoid appearing the phenomenon of interference.
In an actual working condition, the needle beam is designed into three detachable units, the first needle beam unit and the second needle beam unit are equal in length and are 10 meters, and the third needle beam unit is 8 meters long; the trolley is designed as two equal length units of 6 meters each. According to the structure and the method, the trolley is not required to be disassembled, only the third needle beam unit of the head is required to be disassembled integrally, the second needle beam unit and the trolley unit on the second needle beam unit are bent integrally, and the first needle beam unit and the trolley unit on the first needle beam unit are bent integrally. The large-area disassembly of parts is not needed, the overbending can be completed only by integral disassembly, and after overbending, the whole assembly is also needed, and the rod piece is not needed to be embedded and repaired, so that the construction process is greatly simplified, the construction efficiency is improved, and the construction period is shortened.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.
Claims (7)
1. A needle beam trolley comprises a needle beam and a trolley, wherein the trolley walks along the needle beam; the method is characterized in that:
the needle beam comprises a plurality of sections of needle beam units, and the needle beam units are detachably connected;
the trolley comprises a plurality of sections of trolley units;
the trolley unit comprises a trolley main body, a supporting leg assembly, a top die assembly, a bottom die assembly and a plurality of side die assemblies, wherein the supporting leg assembly, the top die assembly, the bottom die assembly and the side die assemblies are connected to the trolley main body; the support leg assembly comprises support legs, the top die assembly comprises a top die, the bottom die assembly comprises a bottom die, the side die assembly comprises side dies, two ends of the top die are respectively hinged with the side dies on two sides, the other ends of the side dies are hinged with the side dies or the bottom die, the top die, the bottom die and the side dies move along the radial direction of the trolley main body, and the top die, the bottom die and the side dies enclose a circular template system when the top die and the bottom die are ejected out for die assembly;
the needle beam comprises a first needle beam unit, a second needle beam unit and a third needle beam unit which are sequentially arranged along the axis, and all the needle beam units are detachably connected;
the first needle beam unit comprises a first needle beam main truss, a front supporting leg assembly and a supporting leg installation seat; the front supporting leg assembly and the supporting leg installation seat are respectively arranged at two ends of the first needle beam main truss;
the first needle beam main truss comprises a side truss, an end cross beam, a connecting truss and an end connecting plate; one end of the side truss is provided with a connecting hole group, the top of the side truss is provided with an upper guide rail, and the bottom of the side truss is provided with a lower guide rail; the end connecting plate comprises a vertical plate and a double-lug plate group, the vertical plate is a rectangular plate, a plurality of groups of connecting holes are formed in the vertical plate, the double-lug plate group is connected to the inner side of the vertical plate, and the end connecting plate is fixedly connected to the outside of the end part of the side truss, provided with the connecting hole group, through the vertical plate; the side trusses are arranged in parallel, the end cross beams are connected to the end parts of the side trusses, and each connecting truss is connected between the side trusses and positioned between the end cross beams;
the front support leg assembly comprises a fixed seat, a first lifting oil cylinder, a front support leg and a base; the fixed seat is an H-shaped seat body and comprises a horizontal section and a vertical section, the vertical section comprises a top flange and a seat sleeve, the seat sleeve is a cuboid sleeve, the top flange is connected to the top end of the seat sleeve, and the vertical section is connected to the outside of the horizontal section through the side surface of the seat sleeve; the top end of the front supporting leg is provided with an opening, a pair of ear plates are arranged in the front supporting leg, and a hinging seat is arranged below the bottom of the front supporting leg; the front supporting leg is coaxially arranged in the seat sleeve, the top of the first lifting oil cylinder is assembled with the top flange, the bottom of the first lifting oil cylinder is connected with the lug plate, and the base is hinged under the hinging seat; the front supporting leg component is connected below the end cross beam through a translation oil cylinder and a U-shaped baffle.
2. A needle beam trolley as claimed in claim 1, wherein: the trolley comprises two trolley units with equal length, and the two trolley units are connected through bolts;
the trolley main body comprises a portal frame, an upper longitudinal beam, a lower longitudinal beam, an upper cross beam, a lower cross beam, an upper travelling mechanism and a lower travelling mechanism; the upper longitudinal beams are connected to the door frames through jacking cylinders, the upper transverse beams are connected between the two upper longitudinal beams, the upper travelling mechanism is arranged below the tops of the door frames, and the lower travelling mechanism is arranged on the lower transverse beams;
one end of the lower longitudinal beam is provided with a connecting end plate, and a connecting hole group is arranged on the connecting end plate; the trolley units are arranged in an aligned mode and assembled through fasteners matched with the connecting hole groups.
3. A needle beam trolley as claimed in claim 1, wherein: the top die is an arc-shaped die, two ends of the top die are provided with hinge lugs, and the middle part of the top die is provided with a grouting hole and a blocking hole component; the hole blocking assembly comprises a sleeve, a hole blocking cover and a handle, wherein the sleeve is arranged outside the grouting hole, the handle is an L-shaped handle, the hole blocking cover is arranged below the grouting hole, and one end of the handle penetrates through the sleeve and is connected with the hole blocking cover; the top die is connected with the trolley main body through a screw rod assembly and a jacking oil cylinder;
the bottom die is an arc die, two ends of the bottom die are provided with hinge lugs, and grouting holes are formed in the bottom die; the bottom film is connected with the trolley main body through the screw rod assembly and the jacking oil cylinder.
4. A needle beam trolley as claimed in claim 3, wherein: the side die assembly comprises an upper side die assembly and a lower side die assembly; the upper side die assembly comprises an upper side die, and the upper side die is connected with the trolley main body through a screw rod assembly and a jacking oil cylinder; the lower side die assembly comprises a lower side die, and the lower side die is connected with the trolley main body through a screw rod assembly and a jacking oil cylinder.
5. A needle beam trolley as claimed in claim 4, wherein: the upper side die is an arc die, one end of the upper side die is provided with a hinge lug, the other end of the upper side die is provided with a connecting pin, the inner edge of the upper side die is provided with a pushing seat, and the outer edge of the upper side die is provided with a recovery seat; the lower side die is an arc die, one end of the lower side die is provided with a hinge hole, and the other end of the lower side die is provided with a hinge lug; when the mold is closed, the upper side mold is hinged with the top mold through the hinge lug, the upper side mold is connected with the lower side mold through the connecting pin matched with the hinge hole, and the other end of the lower side mold is hinged with the bottom mold through the hinge lug.
6. A needle beam trolley as claimed in claim 1, wherein: an ear seat is arranged on the horizontal section of the fixed seat, and an ear seat is arranged on the inner side of the side truss; the translation oil cylinder is arranged between the two lug seats and used for regulating and controlling the horizontal position of the front supporting leg assembly; the U-shaped baffle is coated under the horizontal section, and the top of the U-shaped baffle is connected with the end cross beam;
the base is an arch-shaped base body, the horizontal edge of the base is provided with an ear plate, and the lower part of the arc edge of the base is provided with a through groove for reducing weight of water;
the landing leg installation seat comprises a sliding sleeve and a top seat;
the sliding sleeve comprises a sleeve main body, an end plate and a single-ear plate; the sleeve main body is a cuboid sleeve with two open ends, and the top sleeve wall of the sleeve main body is provided with a pin hole; the end plate is a rectangular plate, the upper connecting hole of the rectangular plate is connected to the outer side of the sleeve main body; the plurality of single-ear plates are uniformly arranged and connected to the side edges of the end plates;
the footstock includes rectangular plate and articulated seat, and articulated seat rigid coupling is under the rectangular plate, and the footstock can dismantle the top of connecting in the cover main part through the rectangular plate, is connected through the round pin axle that passes the pinhole between articulated seat and the cover main part.
7. A needle beam trolley as claimed in claim 6, wherein: the second needle beam unit comprises a second needle beam main truss, and two ends of the second needle beam main truss are provided with end connecting plates;
the third needle beam unit comprises a third needle beam main truss, a supporting leg mounting seat and a rear supporting leg; the support leg installation seat is assembled at one end of the third needle beam main truss through a bracket, and the rear support leg is detachably connected below the support leg installation seat at one end;
the support is an H-shaped support and comprises a horizontal section and a vertical section, the two vertical sections are respectively arranged at two ends of the horizontal section, and the horizontal section is connected under the third needle beam main truss through a U-shaped baffle and a translation cylinder; the rear support leg flange is connected under the support leg mounting seat, and a pull rod is arranged between the two rear support legs.
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| CN202210562681.5A CN114810151B (en) | 2022-05-23 | 2022-05-23 | Needle beam trolley |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210562681.5A CN114810151B (en) | 2022-05-23 | 2022-05-23 | Needle beam trolley |
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| CN114810151B true CN114810151B (en) | 2023-08-25 |
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| CN215486053U (en) * | 2021-06-10 | 2022-01-11 | 中铁十二局集团第一工程有限公司 | Walking, rotary mold and template transverse moving assembly of needle beam type rotary mold full-circle lining trolley |
| JP2022027989A (en) * | 2017-08-28 | 2022-02-14 | 株式会社フジタ | Gantry trolley used for secondary lining of telescopic centre tunnel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2589677Y (en) * | 2002-09-12 | 2003-12-03 | 颜宏 | Side arch type all round needle beam loop wheel machine |
| CN202718678U (en) * | 2012-08-10 | 2013-02-06 | 福建中天建工机械有限公司 | Whole-circle tunnel needle beam trolley |
| JP2022027989A (en) * | 2017-08-28 | 2022-02-14 | 株式会社フジタ | Gantry trolley used for secondary lining of telescopic centre tunnel |
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| CN114810151A (en) | 2022-07-29 |
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