CN211524827U - Large-span telescopic movable trestle - Google Patents
Large-span telescopic movable trestle Download PDFInfo
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- CN211524827U CN211524827U CN201921381976.2U CN201921381976U CN211524827U CN 211524827 U CN211524827 U CN 211524827U CN 201921381976 U CN201921381976 U CN 201921381976U CN 211524827 U CN211524827 U CN 211524827U
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Abstract
The utility model discloses a large-span telescopic removal landing stage. Belongs to the technical field of tunnel construction. The tunnel construction safety step pitch and inverted arch construction layout method mainly solves the related technical problems of tunnel construction safety step pitch, inverted arch construction related process layout and the like. It is mainly characterized in that: the device comprises a main axle assembly, a secondary axle assembly, a template assembly and a hydraulic system; the template assembly is an inverted arch construction template assembly; and a telescopic mechanism which can enable the secondary axle assembly to move relative to the main axle assembly in a telescopic way is arranged between the main axle assembly and the secondary axle assembly. The utility model has the advantages of compact structure, walking are convenient, low in manufacturing cost, and the normal current of various vehicles is guaranteed to mainly used, reduces the invert construction process conflict, has effectively accelerated the tunnel construction progress.
Description
Technical Field
The utility model belongs to the technical field of tunnel construction, a tunnel construction mechanization corollary equipment among the mechanized construction system of tunnel is related to, specifically a telescopic removal landing stage of large-span.
Background
In tunnel construction, a mechanical rapid construction technology system is not completed, and many key technical problems are not broken through, so that the construction progress is greatly different, and the accident potential is more. The main procedures of tunnel construction (tunnel excavation, preliminary bracing, inverted arch construction, waterproof board paving and hanging, secondary lining concrete pouring, ditch cable trough construction and the like) are comprehensively analyzed, and the fact that the time of each construction procedure at the position of a movable trestle is long, partial procedures cannot be synchronously constructed, the tunnel construction progress is severely limited, and the procedures become key procedures influencing tunnel construction. The large-span telescopic movable trestle can provide inverted arch excavation, support, inverted arch lining and inverted arch filling construction three operation intervals, each process can form flow operation and parallel operation, inverted arch construction progress is effectively accelerated, follow-up time of a two-lining trolley is shortened, and tunnel construction efficiency is improved. Meanwhile, the equipment also meets the requirement of the safety step pitch of tunnel construction.
Disclosure of Invention
The utility model aims at providing a telescopic removal landing stage of large-span to above-mentioned weak point, can solve technical problem such as influence inverted arch region construction progress, tunnel construction safety step, realize interval process line production, parallel operation, effectively improve tunnel efficiency of construction.
The technical solution of the utility model is that: the utility model provides a telescopic removal landing stage of large-span which characterized in that: the device comprises a main axle assembly, a secondary axle assembly, a template assembly and a hydraulic system; the template assembly is an inverted arch construction template assembly; and a telescopic mechanism which can enable the secondary axle assembly to move relative to the main axle assembly in a telescopic way is arranged between the main axle assembly and the secondary axle assembly.
In the technical solution of the utility model, one end of the main axle assembly is provided with a rear approach bridge, a walking mechanism and a rear landing leg, and the other end adjacent to the secondary axle assembly is provided with an auxiliary landing leg, a middle approach bridge and a middle landing leg; and a front supporting leg and a front approach bridge are arranged at one end of the secondary axle assembly, which is back to the main axle assembly.
The technical solution of the utility model in telescopic machanism including setting up the slide on the main axle assembly and setting up the guide pulley mechanism on the secondary axle assembly, guide pulley mechanism and slide cooperation.
The main bridge assembly in the technical proposal of the utility model comprises a main beam and a longitudinal moving trolley; the rear approach bridge is positioned behind the tail end of the main beam, the walking mechanism and the rear support leg are positioned below the tail end of the main beam, the auxiliary support leg is positioned below the front end of the main beam, the middle approach bridge is positioned in front of the front end of the main beam, and the middle support leg is positioned below the main beam; the telescopic mechanism comprises a slideway arranged on the inner side of the main beam and a guide wheel mechanism arranged on the secondary bridge assembly, and the guide wheel mechanism is matched with the slideway; a sliding shoe mechanism for driving the secondary axle assembly to move is arranged on the middle supporting leg; the longitudinal moving trolley is arranged on a track on the main beam between the rear supporting leg and the middle supporting leg.
The secondary bridge assembly in the technical solution of the utility model comprises a guide beam; the telescopic mechanism comprises a slideway arranged on the inner side of the main beam and a guide wheel mechanism arranged behind the rear end of the guide beam, and the guide wheel mechanism is matched with the slideway; the front supporting legs are positioned below the front part of the guide beam, and the front approach bridge is positioned in front of the front end; the guide beam is supported on the middle support leg pulley.
The template assembly in the technical solution of the utility model comprises a central ditch template, an inverted arch filling end mould, an inverted arch arc mould and an inverted arch end mould, wherein the inverted arch filling end mould and the inverted arch end mould are respectively arranged at two ends of the inverted arch arc mould; the main bridge assembly comprises a longitudinal moving trolley, a transverse adjusting mechanism is arranged on the longitudinal moving trolley, and transverse adjusting and positioning of the central ditch template, the inverted arch filling end mold, the inverted arch arc mold and the inverted arch end mold are carried out through the transverse adjusting mechanism. The template assembly is used for inverted arch lining and inverted arch filling, the inverted arch arc mold and the inverted arch end mold are used for inverted arch lining, and the central ditch template and the inverted arch filling end mold are used for inverted arch filling.
The technical solution of the utility model in girder both sides top be provided with waterproof board and steel bar installation platform truck complex track.
The technical solution of the utility model in hydraulic system adopt the design of independent unit, constitute by auxiliary leg hydraulic system, preceding leg hydraulic system, well landing leg hydraulic system and back landing leg hydraulic system, every set of hydraulic system all includes hydraulic power unit and the hydraulic line of being connected with corresponding hydro-cylinder.
The walking mechanism in the technical proposal of the utility model consists of a support, an oil cylinder, a tire support and a tire, wherein the oil cylinder is respectively connected with the support and the tire support; the rear support legs comprise rear support leg cross beams and two rear support leg oil cylinders, the two rear support leg oil cylinders are symmetrically fixed on the rear support leg cross beams, telescopic rods of the two rear support leg oil cylinders are respectively connected with the clamping plates, and the clamping plates are connected with the main beam; the auxiliary supporting leg comprises a first telescopic loop bar mechanism, an auxiliary supporting leg oil cylinder, an auxiliary supporting leg cross beam, an auxiliary supporting leg longitudinal beam, a supporting wheel group and a first sliding shoe mechanism, and the auxiliary supporting leg cross beam, the auxiliary supporting leg longitudinal beam and the first telescopic loop bar mechanism form a # -shaped structure; the main beam is supported above the supporting wheel set, and the main axle assembly is driven by the first sliding shoe mechanism to move back and forth along the pulleys in the supporting wheel set; the first telescopic sleeve rod mechanism comprises a change gear, a guide wheel, a telescopic rod and a telescopic sleeve; the middle supporting leg comprises a second telescopic loop bar mechanism, a middle supporting leg cross beam, a middle supporting leg oil cylinder, a supporting cross beam, a dragging wheel group and a second sliding shoe mechanism, the supporting cross beam is fixedly connected with the main beam, the dragging wheel group and the second sliding shoe mechanism are fixed on two sides of the supporting cross beam, and the secondary bridge assembly drives the guide beam to longitudinally move along a pulley of the dragging wheel group through the second sliding shoe mechanism; the middle supporting leg cross beam is connected with the supporting cross beam through a middle supporting leg oil cylinder; the telescopic sleeve and the telescopic rod slide relatively by the telescopic of the supporting leg oil cylinder.
The front supporting leg in the technical proposal of the utility model comprises a third telescopic loop bar mechanism, a front supporting leg beam and an inclined support; and the third telescopic loop bar mechanism and the inclined support are respectively fixed below the front end of the guide beam.
The inverted arch arc mould in the technical proposal of the utility model comprises a longitudinal beam, a connecting beam and a template; the longitudinal beam is provided with turnover oil cylinders in pairs, and the templates on the two sides of the longitudinal beam are respectively hinged with the longitudinal beam and the corresponding turnover oil cylinders.
The utility model discloses a main function has: the large-span telescopic movable trestle has the advantages that the effective construction distance is long, and the large-span telescopic movable trestle can be divided into three operation sections, namely an inverted arch filling construction area, an inverted arch construction area and an inverted arch excavation primary support area, so that the process flow operation is realized, and the inverted arch construction efficiency can be effectively improved; secondly, can effectively shorten safe step distance, girder both sides top is provided with the track on the landing stage main bridge assembly, and waterproof board platform truck and reinforcing bar platform truck are not enough because of invert filling strength, and when unable removal landing stage, can ride and carry out the construction operation on the landing stage.
The utility model discloses satisfying under the normal current prerequisite of various vehicles for the space in landing stage construction district can expand relatively, can expand the construction operation face in the plane, reduces the interference of each process in the inverted arch construction, effectively accelerates the construction progress. The utility model has the advantages of compact structure, convenient walking, low manufacturing cost, etc.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the utility model discloses landing stage main axle assembly sketch map.
Fig. 3 is the utility model discloses landing stage secondary bridge assembly schematic diagram.
Fig. 4 is the utility model discloses landing stage inverted arch construction template assembly sketch map.
Fig. 5 is a schematic view of the landing stage walking mechanism of the present invention.
Fig. 6 is the utility model discloses landing stage rear leg structure sketch map.
Fig. 7 is a front view of the auxiliary leg structure of the present invention.
Fig. 8 is a side view of the auxiliary leg structure of the present invention.
Fig. 9 is a schematic view of the structure of the middle leg of the present invention.
Fig. 10 is a front view of the front leg structure of the present invention.
Fig. 11 is a side view of the front leg structure of the present invention.
Fig. 12 is a schematic view of the inverted arch form of the present invention.
The sequence numbers in the figures illustrate: 1. a main axle assembly; 11. a rear approach bridge; 12. a running mechanism; 13. a rear leg; 14. a main beam; 15. an auxiliary leg; 16. a middle approach bridge; 17. a middle support leg; 2. a secondary axle assembly; 21. a guide wheel mechanism; 22. a guide beam; 23. a front leg; 24. a front approach bridge; 3. a template assembly; 31. a central gutter template; 32. filling an end die with an inverted arch; 33. turning up the arch mould; 34. an inverted arch end die; 4. a hydraulic system; 5. an electrical system.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in figure 1, the utility model relates to a telescopic removal landing stage of large-span includes that main axle assembly 1, secondary axle assembly 2, template assembly 3, hydraulic system 4 and electrical system 5 constitute. The main axle assembly 1 is a main load-bearing structure for various vehicles to pass through. The secondary axle assembly 2 is primarily a transport vehicle load bearing structure. The template assembly 3 is mainly used for inverted arch lining and inverted arch filling. The hydraulic system 4 is designed by adopting an independent unit, consists of an auxiliary supporting leg hydraulic system, a front supporting leg hydraulic system, a middle supporting leg hydraulic system and a rear supporting leg hydraulic system, is a main execution system for realizing the movement of the whole machine and parts, adopts a relatively independent modular design, and comprises a hydraulic pump station and a hydraulic pipeline, wherein the hydraulic pipeline is connected with a corresponding oil cylinder. The electric system 5 is a control system for realizing the movement of the whole machine and parts, can realize the basic operation functions of the whole machine such as back-and-forth movement, transverse adjustment, telescopic adjustment of each supporting leg, approach bridge turnover, longitudinal trolley movement and the like, and is also provided with auxiliary functions such as pressure monitoring, fault alarm, trestle automatic positioning, annular reinforcing steel bar positioning and the like. The electrical system 5 is controlled by a PLC, and can realize the functions of pressure monitoring, action state information recording, fault alarm prompting, automatic positioning and the like besides the basic operation function.
As shown in fig. 2, the main bridge assembly 1 includes a rear approach bridge 11, a traveling mechanism 12, a rear leg 13, a main beam 14, a longitudinally moving trolley, an auxiliary leg 15, a middle approach bridge 16 and a middle leg 17, wherein the main beam 14 is respectively connected with the rear approach bridge 11, the traveling mechanism 12, the rear leg 13, the longitudinally moving trolley, the auxiliary leg 15, the middle approach bridge 16, the main bridge longitudinally moving mechanism and the middle leg 17. The rear approach bridge 11 is located behind the tail end of the main beam 14, the walking mechanism 12 and the rear support legs 13 are located below the tail end of the main beam 14, the auxiliary support legs 15 are located below the main beam 14, the middle approach bridge 16 is located in front of the front end of the main beam 14, and the middle support legs 17 are located below the front end 14 of the main beam. The middle supporting leg 17 is provided with a sliding shoe mechanism for driving the secondary axle assembly 2 to move. The longitudinal moving trolley is arranged on a track on the main beam 14 between the rear supporting leg 12 and the middle supporting leg 17, the longitudinal moving trolley can run on the track of the main beam 14 between the rear supporting leg 12 and the middle supporting leg 17 and is used for lifting and hanging each template in the template assembly 3 to move longitudinally, and the main bridge longitudinal moving mechanism is used for adjusting the position of the moving trestle. And tracks matched with the waterproof plate and the steel bar installation trolley are arranged above two sides of the main beam 14.
As shown in fig. 3, the sub-axle assembly 2 is composed of a guide wheel mechanism 21, a guide beam 22, a front leg 23, a front approach bridge 24, and the like. The guide wheel mechanism 21 is located behind the rear end of the guide beam 22, i.e., the adjacent end to the main axle assembly 1, the front leg 23 is located below the front end of the guide beam 22, and the front approach bridge 24 is located in front of the front end of the guide beam 22. The inner side of the main beam 14 is provided with a slideway, the guide wheel mechanism 21 is matched with the slideway, and the slideway and the guide wheel mechanism 21 form a telescopic mechanism which can enable the secondary axle assembly 2 to move relative to the main axle assembly 1 in a telescopic way. The guide beam 22 is supported on pulleys on the center leg 16 for longitudinal movement in the inner race of the main beam 14 by a runner mechanism 21.
As shown in fig. 4, the formwork assembly 3 is an inverted arch construction formwork assembly, and includes a central ditch formwork 31, an inverted arch filling end formwork 32, an inverted arch formwork 33, an inverted arch end formwork 34, and the like. The inverted arch filling end die 32 and the inverted arch end die 34 are respectively provided at both ends of the inverted arch die 33. The central ditch template 31 and the inverted arch filling end template 32 are used for inverted arch filling, the inverted arch arc template 33 and the inverted arch end template 34 are used for inverted arch lining, and longitudinal movement can be realized through the longitudinal moving trolley. A transverse adjusting mechanism is arranged on a longitudinally moving trolley of the main axle assembly 1, and transverse adjusting and positioning of the central ditch template 31, the inverted arch filling end mold 32, the inverted arch arc mold 33 and the inverted arch end mold 34 are carried out through the transverse adjusting mechanism.
As shown in fig. 5, the running gear 12 is composed of a support 121, an oil cylinder 122, a tire support 123, and a tire 12, and the oil cylinder 122 is coupled to the support 121 and the tire support 123, respectively. The support 121 is bolted with the rear end of the main beam 14, and the height of the tire 124 can be adjusted by extending and contracting the oil cylinder 122 as required.
As shown in fig. 6, the rear leg 13 includes a rear leg cross member and two rear leg cylinders, the two rear leg cylinders are symmetrically fixed on the rear leg cross member, the telescopic rods of the two rear leg cylinders are respectively connected with the clamping plate, and the clamping plate is connected with the main beam 14. The rear support cross beam of the rear support 13 and the main beam 14 slide left and right relatively through the extension of the rear support oil cylinder, so that the left and right positions of the trestle can be adjusted.
As shown in fig. 7 and 8, the auxiliary leg 15 is composed of a first telescopic loop bar mechanism 151, an auxiliary leg cylinder 152, an auxiliary leg longitudinal beam 153, an auxiliary leg cross beam 154, a support wheel set 155, a first slipper mechanism 156, and the like, wherein the auxiliary leg longitudinal beam 153, the auxiliary leg cross beam 154, and the first telescopic loop bar mechanism 155 form a cross-shaped structure, which is a main load-bearing leg and a power-driven leg of the mobile trestle. The main beams 14 are supported above the supporting wheel sets 155, and the main axle assembly 1 is driven to move back and forth along the pulleys in the supporting wheel sets 155 through the first slipper mechanism 156. The first telescopic link mechanism 151 includes a change gear, a guide wheel, a telescopic link, and a telescopic sleeve. The auxiliary leg 15 is driven by the first slipper mechanism 156 and moves along the main beam 14 through a change gear and a guide wheel in the first telescopic loop bar mechanism 151. The height position of the movable trestle is adjusted by the telescopic sleeve and the telescopic rod which are pushed to slide relatively by the extension of the auxiliary supporting leg oil cylinder 152 in the first telescopic loop bar mechanism 151.
As shown in fig. 9, the middle support leg 17 is composed of a second telescopic bar mechanism 171, a middle support leg cylinder 172, a middle support leg beam 173, a support beam 174, a tug unit 175, a second skid shoe mechanism 176 and the like, wherein the support beam 174 in the middle support leg 17 is connected below the main beam 14 through a bolt, the tug unit 175 and the second skid shoe mechanism 176 are fixed on two sides of the support beam, and the secondary bridge assembly 2 drives the guide beam 22 to move longitudinally along the tug unit 175 through the second skid shoe mechanism 176. The middle support leg beam 173 and the support beam 174 are kept to slide relatively by the extension and contraction of the middle support leg cylinder 172, and are used for adjusting the transverse position of the mobile trestle, and the second telescopic loop bar mechanism 176 is used for enabling the telescopic loop and the telescopic link to slide relatively by the extension and contraction of the middle support leg cylinder 172, and also adjusting the height position of the mobile trestle.
As shown in fig. 10 and 11, the front leg 23 is composed of a third telescopic link mechanism 231, a front leg cross member, a diagonal support, and the like. The third telescopic loop bar mechanism 231 and the inclined strut are respectively fixed below the front end of the guide beam 22 through bolts and are used for supporting the secondary axle assembly 2 and are main bearing legs. The third telescopic sleeve rod mechanism 231 in the front leg 23 is telescopic by the front leg oil cylinder 232 to make the telescopic sleeve and the telescopic rod slide relatively, so as to adjust the position state of the guide beam 22.
As shown in fig. 12, the inverted arch mold 33 is composed of a longitudinal beam 331, a mold plate 332, a reversing cylinder 333, and the like. Turning oil cylinders 333 are arranged on the longitudinal beam 331 in pairs, and the templates 332 on the two sides of the longitudinal beam 331 are respectively hinged with the longitudinal beam 331 and are respectively hinged with the corresponding turning oil cylinders 333. When the turning oil cylinder 333 extends out, the templates 332 on the two sides of the longitudinal beam 331 are in a formwork supporting state, when the turning oil cylinder 333 retracts, the templates 332 on the two sides of the longitudinal beam 331 can be turned and demoulded, and when the turning oil cylinder 333 retracts, the inverted arch template 33 is in a formwork turning state, and longitudinal movement is achieved through lifting and hanging of the longitudinal moving trolley.
The utility model discloses telescopic removal landing stage operation flow of large-span includes following step:
(1) after the excavator passes through the trestle to an excavation area, a front approach bridge in the secondary bridge assembly is turned over by 90 degrees, after a section is finished, a front supporting leg is contracted, the secondary bridge assembly is driven by a middle supporting leg sliding shoe mechanism to move forwards, and the front end inverted arch excavation is finished through the circulating motion of the sliding shoe mechanism;
(2) properly retracting a rear approach bridge and a middle approach bridge to enable tires in a walking mechanism to land and bear, suspending rear support legs, retracting middle support legs, driving a main axle assembly to move forwards by an auxiliary support leg sliding shoe mechanism, then landing and bearing the middle support legs, retracting the auxiliary support legs, and enabling the movable trestle to be parked at a position required by a working condition by moving forwards of the auxiliary support leg sliding shoe mechanism;
(3) the walking mechanism is folded, the auxiliary supporting leg stops near the middle supporting leg, meanwhile, the rear supporting leg, the auxiliary supporting leg and the middle supporting leg are grounded for bearing, the front approach bridge, the middle approach bridge and the rear approach bridge are put down to ensure that the vehicle normally passes, and the front approach bridge is folded to continuously finish the front-end inverted arch excavation according to the step 1;
(4) after the binding of the inverted arch reinforcing steel bars is finished, the front and rear longitudinally-moving trolleys respectively lift and hang the two ends of the inverted arch mold to move forwards, so that the inverted arch mold and the inverted arch end mold stop at an inverted arch lining area, and are accurately positioned through a transverse moving mechanism of the front and rear longitudinally-moving trolleys. Then, the central ditch template is lifted and hung by the rear longitudinal moving trolley to move forwards, so that the central ditch template and the inverted arch filling end template are stopped at an inverted arch filling area, and then the transverse moving mechanism of the rear longitudinal moving trolley is used for accurately positioning;
and (4) after the inverted arch excavation, the inverted arch lining and the inverted arch filling are finished, repeating the steps 2, 3 and 4, and continuously finishing the next operation cycle.
The utility model discloses satisfying under the normal current prerequisite of various vehicles for the space in landing stage construction district can expand relatively, can expand the construction operation face in the plane, reduces the interference of each process in the inverted arch construction, effectively accelerates the construction progress. Has the advantages of reasonable design, compact structure, simple structure, safe and reliable use and the like.
The present invention has been described in detail with reference to the embodiments, which are illustrative rather than restrictive, and variations and modifications may be effected without departing from the general inventive concept within the scope thereof.
Claims (11)
1. The utility model provides a telescopic removal landing stage of large-span which characterized in that: comprises a main axle assembly (1), a secondary axle assembly (2), a template assembly (3) and a hydraulic system (4); the template assembly (3) is an inverted arch construction template assembly; a telescopic mechanism capable of enabling the secondary axle assembly (2) to move in a telescopic mode relative to the main axle assembly (1) is arranged between the main axle assembly (1) and the secondary axle assembly (2).
2. The large-span telescopic mobile trestle of claim 1, wherein: one end of the main axle assembly (1) is provided with a rear approach bridge (11), a walking mechanism (12) and rear support legs (13), and the other end adjacent to the secondary axle assembly (2) is provided with auxiliary support legs (15), a middle approach bridge (16) and middle support legs (17); and a front supporting leg (23) and a front approach bridge (24) are arranged at one end of the secondary axle assembly (2) opposite to the main axle assembly (1).
3. A large-span telescopic mobile trestle according to claim 1 or 2, characterised in that: the telescopic mechanism comprises a slideway arranged on the main axle assembly (1) and a guide wheel mechanism (21) arranged on the secondary axle assembly (2), and the guide wheel mechanism (21) is matched with the slideway.
4. The large-span telescopic mobile trestle of claim 2, wherein: the main axle assembly (1) comprises a main beam (14) and a longitudinal moving trolley; the rear approach bridge (11) is positioned behind the tail end of the main beam (14), the walking mechanism (12) and the rear support legs (13) are positioned below the tail end of the main beam (14), the auxiliary support legs (15) are positioned below the front end of the main beam (14), the middle approach bridge (16) is positioned in front of the front end of the main beam (14), and the middle support legs (17) are positioned below the main beam (14); the telescopic mechanism comprises a slideway arranged on the inner side of the main beam (14) and a guide wheel mechanism (21) arranged on the secondary bridge assembly (2), and the guide wheel mechanism (21) is matched with the slideway; a sliding shoe mechanism for driving the secondary axle assembly (2) to move is arranged on the middle supporting leg (17); the longitudinal moving trolley is arranged on a track on a main beam (14) between a rear supporting leg (13) and a middle supporting leg (17).
5. The large-span telescopic mobile trestle of claim 2, wherein: the secondary axle assembly (2) comprises a guide beam (22); the telescopic mechanism comprises a slideway arranged on the inner side of the main beam (14) and a guide wheel mechanism (21) arranged behind the rear end of the guide beam (22), and the guide wheel mechanism (21) is matched with the slideway; the front supporting legs (23) are positioned below the front part of the guide beam (22), and the front approach bridge (24) is positioned in front of the front end; the guide beam (22) is supported on the pulleys of the middle support leg (17).
6. A large-span telescopic mobile trestle according to claim 1 or 2, characterised in that: the template assembly (3) comprises a central ditch template (31), an inverted arch filling end template (32), an inverted arch arc template (33) and an inverted arch end template (34), wherein the inverted arch filling end template (32) and the inverted arch end template (34) are respectively arranged at two ends of the inverted arch arc template (33); the main axle assembly (1) comprises a longitudinally moving trolley, a transverse adjusting mechanism is arranged on the longitudinally moving trolley, and transverse adjusting and positioning of a central ditch template (31), an inverted arch filling end mould (32), an inverted arch arc mould (33) and an inverted arch end mould (34) are carried out through the transverse adjusting mechanism.
7. The large-span telescopic mobile trestle of claim 4, wherein: and tracks matched with the waterproof plate and the steel bar mounting trolley are arranged above two sides of the main beam (14).
8. A large-span telescopic mobile trestle according to claim 1 or 2, characterised in that: the hydraulic system (4) adopts an independent unit design and consists of an auxiliary supporting leg hydraulic system, a front supporting leg hydraulic system, a middle supporting leg hydraulic system and a rear supporting leg hydraulic system, and each set of hydraulic system comprises a hydraulic pump station and a hydraulic pipeline connected with a corresponding oil cylinder.
9. The large-span telescopic mobile trestle of claim 4, wherein: the walking mechanism (12) consists of a support (121), an oil cylinder (122), a tire support (123) and a tire (124), wherein the oil cylinder (122) is respectively connected with the support (121) and the tire support (123); the rear supporting legs (13) comprise rear supporting leg cross beams and two rear supporting leg oil cylinders, the two rear supporting leg oil cylinders are symmetrically fixed on the rear supporting leg cross beams, telescopic rods of the two rear supporting leg oil cylinders are respectively connected with a clamping plate, and the clamping plate is connected with the main beam (14); the auxiliary supporting leg (15) comprises a first telescopic loop bar mechanism (151), an auxiliary supporting leg oil cylinder (152), an auxiliary supporting leg longitudinal beam (153), an auxiliary supporting leg cross beam (154), a supporting wheel set (155) and a first sliding shoe mechanism (156), and the auxiliary supporting leg cross beam (154), the auxiliary supporting leg longitudinal beam (153) and the first telescopic loop bar mechanism (151) form a # -shaped structure; the main beam (14) is supported above the supporting wheel set (155), and the main axle assembly (1) is driven to move back and forth along a pulley in the supporting wheel set (155) through a first sliding shoe mechanism (156); the first telescopic loop bar mechanism (151) comprises a change gear, a guide wheel, a telescopic rod and a telescopic loop; the middle supporting leg (17) comprises a second telescopic loop bar mechanism (171), a middle supporting leg oil cylinder (172), a middle supporting leg cross beam (173), a supporting cross beam (174), a tug unit (175) and a second sliding shoe mechanism (176), the supporting cross beam (174) is fixedly connected with the main beam (14), the tug unit (175) and the second sliding shoe mechanism (176) are fixed on two sides of the supporting cross beam (174), and the secondary axle assembly (2) drives the guide beam (22) to longitudinally move along a pulley of the tug unit (175) through the second sliding shoe mechanism (176); the middle support leg cross beam (173) is connected with the support cross beam (174) through a middle support leg oil cylinder (172); the telescopic sleeve and the telescopic rod slide relatively by the telescopic of the supporting leg oil cylinder.
10. The large-span telescopic mobile trestle of claim 5, wherein: the front supporting leg (23) comprises a third telescopic sleeve rod mechanism (231), a front supporting leg oil cylinder (232), a front supporting leg cross beam and an inclined support; and the third telescopic loop bar mechanism (231) and the inclined support are respectively fixed below the front end of the guide beam (22).
11. The large-span telescopic mobile trestle of claim 6, wherein: the inverted arch arc die (33) comprises a longitudinal beam (331), a die plate (332) and a turnover oil cylinder (333); the longitudinal beam (331) is provided with turnover oil cylinders (333) in pairs, and the templates (332) on the two sides of the longitudinal beam (331) are respectively hinged with the longitudinal beam (331) and are respectively hinged with the corresponding turnover oil cylinders (333).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921381976.2U CN211524827U (en) | 2019-08-23 | 2019-08-23 | Large-span telescopic movable trestle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921381976.2U CN211524827U (en) | 2019-08-23 | 2019-08-23 | Large-span telescopic movable trestle |
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| CN211524827U true CN211524827U (en) | 2020-09-18 |
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| CN201921381976.2U Active CN211524827U (en) | 2019-08-23 | 2019-08-23 | Large-span telescopic movable trestle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879046A (en) * | 2021-02-07 | 2021-06-01 | 中铁七局集团武汉工程有限公司 | Integral automatic hydraulic moving inverted arch trestle sliding formwork trolley and construction method thereof |
-
2019
- 2019-08-23 CN CN201921381976.2U patent/CN211524827U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879046A (en) * | 2021-02-07 | 2021-06-01 | 中铁七局集团武汉工程有限公司 | Integral automatic hydraulic moving inverted arch trestle sliding formwork trolley and construction method thereof |
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