CN114810151A - Needle beam trolley - Google Patents
Needle beam trolley Download PDFInfo
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- CN114810151A CN114810151A CN202210562681.5A CN202210562681A CN114810151A CN 114810151 A CN114810151 A CN 114810151A CN 202210562681 A CN202210562681 A CN 202210562681A CN 114810151 A CN114810151 A CN 114810151A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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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Abstract
The invention discloses a needle beam trolley. The trolley travels along the needle beam; the needle beam comprises a plurality of sections of needle beam units, and the sections of needle beam units are detachably connected; the trolley comprises a plurality of sections of trolley units. And during the straight-line construction, the needle beam unit and the trolley unit are assembled into an integral lining construction. When the arc section is constructed, the trolley is split into mutually independent units, and the trolley units are moved to the needle beam units; disassembling each section of needle beam unit, and transporting out the redundant needle beam units; lining construction is carried out through the front needle beam unit and the trolley unit on the front needle beam unit; demolding after construction is finished; and each needle beam unit and the trolley unit are assembled to independently pass through a bend. And the trolley units are designed to comprise a plurality of side mould assemblies so as to improve clearance after mould removal, so that each trolley unit cannot interfere with the inner wall of the tunnel when being bent excessively. The construction process is simplified to a great extent, the construction difficulty is reduced, the construction efficiency is improved, and the construction period is shortened.
Description
Technical Field
The invention belongs to the technical field of tunnel construction equipment, and particularly relates to a needle beam trolley.
Background
The length of a common needle beam trolley is 12 meters. The current common segmentation mode is 7.5 meters plus 4.5 meters, for a tunnel with a small-radius bend (the radius of the bend is less than 50 meters), due to the trolley design and the template blocking problem, the tunnel allows a trolley with a 4.5 meter section to pass through, the 7.5 meter section can pass through an arc section only after being disassembled, and the construction of the next straight line section is completed after the lining of the 4.5 meter trolley on the arc section, and the 7.5 meter trolleys are spliced into a whole. If the length of the trolley is simply shortened, the construction period cannot be guaranteed.
Disclosure of Invention
The invention aims to provide a needle beam trolley which is high in 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 travels along the needle beam;
the needle beam comprises a plurality of sections of needle beam units, and the sections of needle beam units are detachably connected;
the trolley comprises a plurality of trolley units;
the trolley unit comprises a trolley main body, and a supporting leg assembly, a top die assembly, a bottom die assembly and a plurality of side die assemblies which are connected to the trolley main body; the landing leg subassembly includes the landing leg, and top mould subassembly includes the top mould, and the bottom mould subassembly includes the die block, and the side form subassembly includes the side form, and the both ends of top mould are articulated in the side form of both sides respectively, and the other end and the side form or the die block of side form are articulated, and top mould, die block and side form enclose into the ring form template system along the radial motion of platform truck main part during ejecting compound die.
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, an upper longitudinal beam, a lower longitudinal beam, an upper cross beam, a lower cross beam, an upper traveling mechanism and a lower traveling mechanism; the pair of lower longitudinal beams are arranged in parallel, the lower cross beam is connected between the two lower longitudinal beams, the gantries are arranged in parallel and straddle on the lower longitudinal beams, the tops of the gantries are connected through a pull rod, the upper longitudinal beams are connected on the gantries through a jacking 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 gantries, and the lower travelling mechanism is arranged on the lower cross beam;
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 alignment and assembled by fasteners matched with the connecting hole groups.
The top die is an arc die, two ends of the top die are provided with hinged lugs, and the middle of the top die is provided with a grouting hole and a hole blocking assembly; the hole blocking assembly comprises a sleeve, a hole blocking cover and a handle, 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 hinged lugs, and a solid body of the bottom die is provided with a grouting hole; the bottom film is connected with the trolley main body through a screw rod assembly and a 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; during die assembly, the upper side die is hinged with the top die through the hinge lug, the upper side die is connected with the lower side die through the connecting pin matched with the hinge hole, and the other end of the lower side die is hinged with the bottom die 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 each section of needle beam unit is detachably connected with each other.
The first pin beam unit comprises a first pin beam main truss, a front supporting leg assembly and a supporting leg mounting seat; the front supporting leg assembly and the supporting leg mounting seat are respectively arranged at two ends of the first needle beam main truss;
the first pin 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 outer side of the end part of the side truss, which is provided with the connecting hole group, through the vertical plate; the side trusses are arranged in parallel, the end beams are connected to the ends of the two side trusses, and the connecting trusses are connected between the two side trusses and located between the end beams.
The front supporting leg assembly comprises a fixed seat, a first lifting oil cylinder, a front supporting leg and a base; the fixing 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 cover, the seat cover is a cuboid cover, the top flange is connected to the top end of the seat cover, and the vertical section is connected outside the horizontal section through the side face of the seat cover; the top end of the front supporting leg is provided with an opening, a pair of ear plates is arranged in the opening, and a hinge 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 below the hinge seat; the front supporting leg assembly is connected to the lower portion of the end cross beam through the translation oil cylinder and the U-shaped baffle.
The horizontal section of the fixed seat is provided with an ear seat, and the inner side of the side truss is provided with the ear seat; 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 plate is coated below the horizontal section, and the top of the U-shaped baffle plate is connected with the end beam;
the base is a bow-shaped base body, the horizontal edge of the base is provided with an ear plate, and the arc edge of the base is provided with a through groove for reducing weight and passing water;
the supporting leg mounting seat comprises a sliding sleeve and a top seat;
the sliding sleeve comprises a sleeve main body, an end plate and a single lug plate; the sleeve main body is a cuboid sleeve with openings at two ends, and a pin hole is formed in the sleeve wall at the top end of the sleeve main body; the end plate is a rectangular plate, the upper part of the end plate is connected with the hole, and the end plate is connected to the outer side of the sleeve main body; the single ear plates are uniformly arranged and connected to the side edges of the end plates;
the footstock comprises a rectangular plate and a hinged seat, the hinged seat is fixedly connected under the rectangular plate, the footstock is detachably connected to the top of the sleeve main body through the rectangular plate, and the hinged seat is connected with the sleeve main body through a pin shaft penetrating through a pin hole.
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 pin beam unit comprises a third pin beam main truss, a support leg mounting base and a rear support leg; the supporting leg mounting seat is assembled at one end of the third needle beam main truss through a support, and the rear supporting leg is detachably connected below the supporting leg mounting seat at one end;
the support is an H-shaped frame 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 below the third pin beam main truss through a U-shaped baffle and a translation oil cylinder; the rear supporting leg flange is connected below the supporting leg mounting seat, and a pull rod is arranged between the two rear supporting legs.
When the needle beam unit and the trolley unit are used for the construction of the straight line section of the tunnel, the needle beam unit and the trolley unit are assembled into an integral lining, the integral length is ensured, and the construction efficiency is not reduced. When the needle beam unit is used for tunnel arc section construction, the trolley is split into two mutually independent units, and the trolley units are moved to the corresponding needle beam units; disassembling the needle beam units at all sections, and conveying the needle beam units which do not bear the trolley units at the upper parts out of the tunnel; lining construction is carried out through the foremost needle beam unit and the trolley unit on the foremost needle beam unit; after the construction of the arc section, the background vehicle unit is demolded, and the mold is recovered; the needle beam unit and the trolley unit are bent. Meanwhile, the trolley units are designed to comprise a plurality of side die assemblies so as to improve clearance after the die is removed, and each trolley unit cannot interfere with the inner wall of the tunnel when being bent excessively. After the construction of the curve is finished, the curve is combined into a trolley. Therefore, lining construction of the straight line section by two trolleys in a spliced mode is achieved, lining construction of the arc section by one trolley of the two trolleys is achieved, all parts are integrally disassembled and assembled, other parts do not need to be disassembled, and bending can be achieved. The construction process is simplified to a great extent, the construction difficulty is reduced, the construction efficiency is improved, and the construction period is shortened.
Drawings
FIG. 1 is an axial schematic view of a preferred embodiment of the present 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 present preferred embodiment.
Fig. 4 is an enlarged view of the assembly of the front leg assembly in the preferred embodiment.
Fig. 5 is an enlarged view illustrating the assembly of the leg mount in the preferred embodiment.
Fig. 6 is an enlarged schematic view of the second needle beam unit in the present preferred embodiment.
Fig. 7 is an enlarged schematic view of the third beam unit in the present preferred embodiment.
Fig. 8 is a front enlarged view of the carriage unit in the preferred embodiment.
Fig. 9 is a front enlarged view of the top mold in the preferred embodiment.
Fig. 10 is an enlarged schematic top view of the top mold in the preferred embodiment.
Fig. 11 is a front enlarged view of the upper mold in the preferred embodiment.
Fig. 12 is an enlarged front view of the lower die in the preferred embodiment.
Fig. 13 is a front enlarged view of the bottom mold in the preferred embodiment.
Fig. 14 is a schematic view of the construction state of the tunnel in the straight line segment construction according to the preferred embodiment.
Fig. 15 is a schematic diagram of a detached state of the trolley before construction of the tunnel arc segment in the preferred embodiment.
Fig. 16 is a schematic diagram of a split state of the needle beam before the tunnel arc segment is constructed according to the preferred embodiment.
Fig. 17 is a schematic diagram of the construction and bending state of the tunnel arc segment in the preferred embodiment.
Fig. 18 is a schematic view showing a state of the first step of releasing the mold in the present preferred embodiment.
Fig. 19 is a schematic view showing a state of a second step of the mold release in the present preferred embodiment.
FIG. 20 is a diagram illustrating a third step of releasing the mold in the preferred embodiment.
Fig. 21 is a diagram illustrating a fourth step of releasing the mold in the preferred embodiment.
Fig. 22 is a schematic view showing a state of the fifth step of releasing the mold in the present preferred embodiment.
Fig. 23 is a diagram illustrating a sixth step of releasing the mold in the preferred embodiment.
Reference numerals
A-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 cross beam, 113-a connecting truss, 114-an end connecting plate, 115-an upper guide rail, 116-a lower guide rail,
12-front supporting leg component, 121-fixing seat, 122-lifting oil cylinder, 123-front supporting leg, 124-base, 125-U-shaped baffle plate and 126-translation oil cylinder,
13-supporting leg mounting seat, 131-sliding sleeve, 132-top seat;
2-a second needle beam unit,
21-a second needle beam main truss, 22-a guide wheel;
3-third pin beam unit, 31-third pin beam main truss, 32-bracket, 33-rear supporting leg, 34-pull rod;
4-needle beam connecting plate;
b, carrying out turning-on of the trolley,
5-a trolley unit, wherein the trolley unit,
51-trolley main body, 511-portal, 512-upper longitudinal beam, 513-lower longitudinal beam, 514-upper transverse beam, 515-lower transverse beam, 516-upper traveling mechanism, 517-lower traveling mechanism,
52-the leg assembly,
53-top die component, 531-top die, 532-hole blocking component,
54-upper side die assembly, 541-upper side die, 542-screw rod seat, 543-connecting pin, 544-pushing seat, 545-recovering seat,
55-lower side die assembly, 551-lower side die,
56-bottom die assembly, 561-bottom die;
a-a pushing oil cylinder, b-a screw rod component and c-a hinge lug.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically indicated and limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the needle beam carriage disclosed in this embodiment includes a needle beam a and a carriage B.
As shown in fig. 2, the needle beam a includes a first needle beam unit 1, a second needle beam unit 2, and a third needle beam unit 3, which are sequentially arranged along an axis, and the needle beam units are connected by 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 supporting leg assembly 12 and the supporting leg mounting base 13 are respectively arranged at two ends of the first needle beam main truss 11.
The first pin girder main girder 11 is a rectangular parallelepiped-shaped girder, and includes a side girder 111, an end cross girder 112, a connection girder 113, and an end connection plate 114. One end of the side truss 111 is provided with a connecting hole group, the top of the side truss 111 is provided with an upper guide rail 115, the bottom of the side truss 111 is provided with a lower guide rail 116, and the pair of side trusses 111 are arranged in parallel. The end cross member 112 serves as a connecting member for connecting the pair of side trusses 111, and each connecting truss 113 is connected between the side trusses 111 and is located in a region between the end cross members 112. The end connecting plate 114 includes 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 114 is fixedly connected to the outer side of the end portion, provided with the connecting hole group, of the side truss 111 through the vertical plate.
As shown in fig. 4, the front leg assembly 12 includes a fixing base 121, a lift cylinder 122, a front leg 123, and a base 124.
The fixing base 121 is an H-shaped base, and is connected to the lower portion 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 on the top of seat cover, and vertical section is connected outside the horizontal segment with its side.
A pair of lug seats are arranged on the horizontal section of the fixed seat 121, the inner sides of the side trusses 111 on the two sides are also provided with the lug seats, a translation oil cylinder 126 is arranged between the lug seats of the horizontal section and the lug seats of the side trusses 111 on the same side, the fixed 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 beam 112. In actual use, the translation oil cylinder 126 works to adjust the relative horizontal position of the fixed seat 121 and the first needle beam main truss 11.
The lift cylinder 122 is disposed in the vertical section of the fixing base 121, the top of which is connected to the top flange, and the bottom of which is connected to the front support leg 123.
The front leg 123 is a rectangular seat with an opening at the top, a pair of ear plates is provided therein for assembling with the lift cylinder 122, and a hinged seat is provided under the bottom for mounting the base 124.
The base 124 is an arcuate base body, and has lugs on its horizontal edges for connecting to the front legs 123 and through slots under its arcuate edges for reducing weight and passing water.
As shown in fig. 5, the leg mount 13 includes a sliding sleeve 131 and a top seat 132.
The sliding sleeve 131 includes a sleeve body, an end plate, and a single lug plate; the sleeve main body is a cuboid sleeve with openings at two ends, and a pin hole is formed in the sleeve wall at the top end of the sleeve main body; the end plate is a rectangular plate, the upper part of the end plate is connected with the hole, and the end plate is connected to the outer side of the sleeve main body; a plurality of single otic placodes are evenly arranged, connect in the side of end plate.
The top seat 132 comprises a rectangular plate and a hinged seat, the hinged seat is fixedly connected under the rectangular plate, the top seat 132 is detachably connected to the top of the sleeve main body through the rectangular plate, and the hinged seat is connected with the sleeve main body through a pin shaft penetrating through a pin hole.
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 is hinged by inserting the pin shaft; 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 punched in a pin hole of the sliding sleeve 131, the connecting hole on the end plate is aligned with the connecting hole group on the end connecting plate at the moment, and the connection can be completed by driving a corresponding nut matched with a bolt. When the pin shaft is detached, the pin shaft in the pin hole is pulled out, the bolt and the nut are detached, and the supporting leg mounting base 13 rotates to the first needle beam main truss 11 and then the pin shaft is driven into the pin hole. The supporting leg mounting base 13 does not need to be completely disassembled; on the other hand, the end plate arrangement of the first needle beam main truss 11 can also facilitate the assembly of the multiple sections of needle beam units.
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 the side truss in the second needle beam main truss 21 are provided with a connecting hole set, and the top of the second needle beam main truss 21 is provided with a plurality of guide wheels 22 so as to cooperate with the installation of the traveling mechanism.
As shown in fig. 7, the third pin beam unit 3 includes a third pin 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 to the first needle beam main truss 11 in structure, except that a plurality of guide wheels are arranged at the top of the third needle beam main truss 31 so as to be matched with a walking mechanism. The trolley B is driven to travel by the traveling mechanism.
The support 32 is an H-shaped frame 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 below the third pin beam main truss 31 through a U-shaped baffle and a translation oil cylinder; the landing leg mount pad assembles in the horizontal segment of support, and back landing leg 33 flange joint is equipped with pull rod 34 in order to improve support stability under the landing leg mount pad between two back landing legs 33.
When the first needle beam unit 1 and the second needle beam unit 2 are assembled, the 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 a 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 mounting seats 13 are connected with the double ear plate groups 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 realized. When the second needle beam unit 2 and the third needle beam unit 3 are assembled, the needle beam connecting plate 4 is arranged at the position of the connecting hole group, and the connecting hole groups of the vertical plates of the two connecting end plates are locked by corresponding nuts matched with bolts; therefore, the assembly among the needle beam units is realized.
As shown in fig. 1, the trolley B includes two trolley units 5, and the length difference between 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 main body 51 comprises a portal 511, an upper longitudinal beam 512, a lower longitudinal beam 513, an upper transverse beam 514, a lower transverse beam 515, an upper traveling mechanism 516 and a lower traveling mechanism 517; one end of the lower longitudinal beam 513 is provided with a connecting end plate which is a rectangular plate and is provided with a connecting hole group; 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 gantries are arranged in parallel and straddle on the lower longitudinal beams, the tops of the gantries are connected through a pull rod, the upper longitudinal beams are connected on the gantries through the pushing oil cylinders, the upper cross beam is connected between the two upper longitudinal beams, the upper traveling mechanism is arranged below the tops of the gantries, and the lower traveling mechanism is arranged on the lower cross beam.
As shown in fig. 8, 9 and 10, the top die assembly 53 includes a top die 531, a top ram a and a screw assembly b. The top die 531 is an arc die, two ends of which are provided with hinged lugs, and the middle part of the body of which is provided with a grouting hole and a hole blocking component 532; the hole blocking assembly comprises a sleeve, a hole blocking cover and a handle, 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 to be 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 move axially to realize ejection or retraction by rotating the nut seat. The pushing oil cylinder a is arranged on the upper cross beam through a cylinder body, and a piston end of the pushing oil cylinder a is connected with the middle part of the top die. The pair of screw rod assemblies b are arranged on the upper cross beam and are respectively arranged on two sides of the pushing oil 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 mold assembly 54 includes an upper mold 541, an ejection cylinder a, and a screw assembly b. The upper mold 541 is an arc mold, and has a plurality of screw holders 542 along the arc length direction, a hinge lug c at one end, and a connecting pin 543 at the other end. The upper mold 541 is further provided with a pushing seat 544 and a recovery seat 545, wherein the pushing seat 544 is located on the inner edge of the upper mold 541, and the recovery seat 545 is located on the outer edge of the upper mold 541. The upper die assemblies 54 are arranged in pairs, with the pair of upper die assemblies 54 being symmetrically disposed on either side of the gantry. When the upper side die assembly is installed, a cylinder body of the pushing oil cylinder a is hinged with a door frame, a piston end is hinged with a pushing seat or a recovery seat of the upper side die, the upper side die is connected with the corresponding screw rod assembly through each screw rod seat, 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, an ejection cylinder a, and a screw assembly b. The lower 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 oil cylinder a is hinged with the lower cross beam of the trolley main body, and the other end of the pushing oil cylinder a is hinged with the lower side die 551. One end of the screw rod component b is hinged with the trolley main body, and the other end of the screw rod component b is hinged with the lower side die 551. A pair of lower die assemblies 55 are symmetrically arranged on both sides of the gantry, the lower die assemblies 55 are assembled with the upper die assemblies and the bottom die assemblies 56 by the lower dies 551 thereof, the high ends of the lower dies 551 are hinged with the upper dies, and the low ends are hinged with the bottom die assemblies.
As shown in fig. 8 and 13, the bottom mold assembly 56 includes a bottom mold 561, an ejector cylinder a, and a screw assembly b. The bottom die 561 is an arc die, and has hinged lugs at its two ends, and a grouting hole is formed in its body. One end of the pushing cylinder a is connected to the lower beam of the trolley body 21, and the other end is connected to the bottom die 561. One end of the screw rod assembly b is connected to the trolley main body 21, and the other end is connected to the bottom die 561.
When the trolley B is assembled, the pair of trolley units 5 are arranged in an aligned mode and are connected through fasteners such as bolts and nuts matched with the connecting end plates of the lower longitudinal beams. When the trolley B is assembled with the needle beam A, the upper traveling mechanism of the trolley B is arranged on the upper guide rail of the needle beam side truss, and the lower traveling mechanism is assembled below the lower guide rail of the needle beam side truss.
When the three-joint needle beam unit works in a straight line section of a tunnel, the three-joint needle beam unit is connected into a whole through bolts, and the horizontal position of each supporting leg assembly is adjusted through the translation oil cylinder so as to be aligned; the pair of trolley units are arranged in an aligned mode and are connected into a whole through fasteners such as bolts and nuts matched with the connecting end plates of the lower longitudinal beams. The upper traveling mechanism of the trolley is arranged on the upper guide rail of the needle beam side truss, and the lower traveling mechanism is assembled below the lower guide rail of the needle beam side truss. And assembling to form the integral lining construction. As shown in fig. 14.
The scheme is as follows when the straight line section is constructed and needs to enter the turning section:
step one, splitting the 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 step two, disassembling the third needle beam unit and the second needle beam unit, and supporting the support leg assemblies at two ends of the second needle beam unit to the ground. As shown in fig. 16.
And step three, 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 and the trolley unit thereon at the front end are short in length, so that lining construction can be performed on a curved road, and the first needle beam unit and the trolley unit thereon do not need to be disassembled, so that the whole body can be bent in a constructed lining.
Meanwhile, in order to ensure the phenomenon of interference with the inner wall of the tunnel during bending, the demolding clearance is increased. When the mold is bent excessively, the distance between the outer edge of the mold and the inner wall of the tunnel can be increased by demolding according to the following steps.
During normal operation, as shown in fig. 8, each template is supported and ejected by the ejection oil cylinder and the screw rod assembly to form a circle matched with the inner wall of the tunnel. When the demolding is needed, in order to increase the demolding clearance, the specific scheme is as follows:
firstly, the screw rod assembly and the template are disassembled, and the screw rod assembly is withdrawn. As shown in fig. 18.
And secondly, recovering the pushing oil 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 connecting point of the pushing oil cylinder and the upper side die from a pushing seat to a recovering seat, and then removing the connection between the screw rod assembly and the upper side die; the jacking cylinder continues to be recovered as shown in fig. 20.
Fourthly, recovering a pushing oil cylinder of the top die assembly; as shown in fig. 21.
Fifthly, recovering a pushing oil cylinder of the lower side die assembly; as shown in fig. 22.
Sixthly, jacking each supporting leg assembly of the needle beam to enable the whole trolley to rise by about 400mm, as shown in figure 23; and (5) demolding is finished.
Through being six parts with the mould split of whole set of, can improve the drawing of patterns headroom, and appear in platform truck side top crossing curved in-process interference, so this conversion through side mould subassembly connected point can further improve the headroom of side top, further avoid appearing interfering the phenomenon.
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; the trolley is designed as two units of equal length, each 6 meters. According to the structure and the method, the trolley does not need to be disassembled, only the third needle beam unit at the head needs to be integrally disassembled, the second needle beam unit and the trolley unit above the second needle beam unit are integrally bent, and the first needle beam unit and the trolley unit above the first needle beam unit are integrally bent. The large-area dismantling of parts is not needed, the bending can be completed only by integral splitting, the integral assembling is also needed after the bending, the rod pieces do not need to be embedded and repaired, the construction process is simplified to a great extent, the construction efficiency is improved, and the construction period is shortened.
The present invention is not limited to the above preferred embodiments, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A needle beam trolley comprises a needle beam and a trolley, wherein the trolley travels along the needle beam; the method is characterized in that:
the needle beam comprises a plurality of sections of needle beam units, and the sections of needle beam units are detachably connected;
the trolley comprises a plurality of trolley units;
the trolley unit comprises a trolley main body, and a supporting leg assembly, a top die assembly, a bottom die assembly and a plurality of side die assemblies which are connected to the trolley main body; the landing leg subassembly includes the landing leg, and top mould subassembly includes the top mould, and the bottom mould subassembly includes the die block, and the side form subassembly includes the side form, and the both ends of top mould are articulated in the side form of both sides respectively, and the other end and the side form or the die block of side form are articulated, and top mould, die block and side form enclose into the ring form template system along the radial motion of platform truck main part during ejecting compound die.
2. The needle beam trolley of 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, an upper longitudinal beam, a lower longitudinal beam, an upper cross beam, a lower cross beam, an upper traveling mechanism and a lower traveling mechanism; the pair of lower longitudinal beams are arranged in parallel, the lower cross beam is connected between the two lower longitudinal beams, the gantries are arranged in parallel and straddle on the lower longitudinal beams, the tops of the gantries are connected through a pull rod, the upper longitudinal beams are connected on the gantries through a jacking 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 gantries, and the lower travelling mechanism is arranged on the lower cross beam;
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 manner and are assembled through fasteners matched with the connecting hole groups.
3. The needle beam trolley of claim 1, wherein: the top die is an arc die, two ends of the top die are provided with hinged lugs, and the middle of the top die is provided with a grouting hole and a hole blocking assembly; the hole blocking assembly comprises a sleeve, a hole blocking cover and a handle, 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 hinged lugs, and a solid body of the bottom die is provided with a grouting hole; the bottom film is connected with the trolley main body through a screw rod assembly and a 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. The needle beam trolley of 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; during the compound die, the upper die is articulated through the hinge lug with the top mould, and the upper die links to each other through connecting pin cooperation hinge hole with the lower side mould, and the other end of lower side mould is articulated through the hinge lug with the die block.
6. The needle beam trolley of claim 1, wherein: 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 each section of needle beam unit is detachably connected with each other.
7. The needle beam trolley of claim 6, wherein: the first pin beam unit comprises a first pin beam main truss, a front supporting leg assembly and a supporting leg mounting seat; the front supporting leg assembly and the supporting leg mounting seat are respectively arranged at two ends of the first needle beam main truss;
the first pin 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 outer side of the end part of the side truss, which is provided with the connecting hole group, through the vertical plate; the side trusses are arranged in parallel, the end beams are connected to the ends of the two side trusses, and the connecting trusses are connected between the two side trusses and located between the end beams.
8. The needle beam trolley of claim 7, wherein: the front supporting leg assembly comprises a fixed seat, a first lifting oil cylinder, a front supporting leg and a base; the fixing 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 cover, the seat cover is a cuboid cover, the top flange is connected to the top end of the seat cover, and the vertical section is connected outside the horizontal section through the side face of the seat cover; the top end of the front supporting leg is provided with an opening, a pair of ear plates is arranged in the opening, and a hinge 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 below the hinge seat; the front supporting leg assembly is connected to the lower portion of the end cross beam through the translation oil cylinder and the U-shaped baffle.
9. The needle beam trolley of claim 8, wherein: the horizontal section of the fixed seat is provided with an ear seat, and the inner side of the side truss is provided with the ear seat; 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 plate is coated below the horizontal section, and the top of the U-shaped baffle plate is connected with the end beam;
the base is a bow-shaped base body, the horizontal edge of the base is provided with an ear plate, and the arc edge of the base is provided with a through groove for reducing weight and passing water;
the supporting leg mounting seat comprises a sliding sleeve and a top seat;
the sliding sleeve comprises a sleeve main body, an end plate and a single lug plate; the sleeve main body is a cuboid sleeve with openings at two ends, and a pin hole is formed in the sleeve wall at the top end of the sleeve main body; the end plate is a rectangular plate, the upper part of the end plate is connected with the hole, and the end plate is connected to the outer side of the sleeve main body; the single ear plates are uniformly arranged and connected to the side edges of the end plates;
the footstock comprises a rectangular plate and a hinged seat, the hinged seat is fixedly connected under the rectangular plate, the footstock is detachably connected to the top of the sleeve main body through the rectangular plate, and the hinged seat is connected with the sleeve main body through a pin shaft penetrating through a pin hole.
10. The needle beam trolley of claim 9, 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 pin beam unit comprises a third pin beam main truss, a support leg mounting base and a rear support leg; the supporting leg mounting seat is assembled at one end of the third needle beam main truss through a support, and the rear supporting leg is detachably connected below the supporting leg mounting 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 below the third pin beam main truss through a U-shaped baffle and a translation oil cylinder; the rear supporting leg flange is connected below the supporting leg mounting seat, and a pull rod is arranged between the two rear supporting legs.
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| CN202210562681.5A CN114810151B (en) | 2022-05-23 | 2022-05-23 | Needle beam trolley |
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| CN202210562681.5A CN114810151B (en) | 2022-05-23 | 2022-05-23 | Needle beam trolley |
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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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|---|---|---|---|---|
| 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 |
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| CN114810151B (en) | 2023-08-25 |
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