CN110847060A - Big portal tension trolley - Google Patents
Big portal tension trolley Download PDFInfo
- Publication number
- CN110847060A CN110847060A CN201911341709.7A CN201911341709A CN110847060A CN 110847060 A CN110847060 A CN 110847060A CN 201911341709 A CN201911341709 A CN 201911341709A CN 110847060 A CN110847060 A CN 110847060A
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- platform
- hydraulic cylinder
- lift
- gate frame
- stretch
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
- E04G21/121—Construction of stressing jacks
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a large gate frame tensioning trolley and relates to the technical field of tensioning trolleys. Including tractor, pump station, stretch-draw platform truck chassis, lift platform, stretch-draw work platform, lift portal, support cylinder, the pump station is installed on the tractor, the platform truck chassis is connected the tractor rear, platform truck chassis four corners all is equipped with a support cylinder platform truck chassis both sides top all is equipped with a lift portal, two lift portal intermediate junction has lift platform two stretch-draw work platform of swing joint above the lift platform, every stretch-draw work platform top all is equipped with an electric block. The tensioning trolley disclosed by the invention can enable the jack to move up and down, left and right and back and forth, so that the personnel can conveniently penetrate through the steel strand, the construction time is saved, the working efficiency of the personnel is improved, and the labor intensity of the personnel is reduced.
Description
Technical Field
The invention relates to the technical field of tensioning trolleys, in particular to a large gate frame tensioning trolley.
Background
Prestressing force stretch-draw adds the pulling force in the component in advance for it bears compressive stress to be exerted prestressing force stretch-draw component, and then makes it produce certain deformation, deals with the load that structure itself received, load, wind load, snow load, earthquake load effect etc. including component self weight. At present, various bridge types, hollow slabs, T beams, prefabricated box beams and cast-in-place box beams in China almost all involve prestress construction.
In the prior art, in the tensioning process of prestressed tendons, a jack is indispensable as main tensioning equipment for prestressed construction. However, the movement, installation and disassembly of the jack consumes a lot of labor and time, which becomes a significant problem limiting the construction speed of the superstructure of the bridge.
Disclosure of Invention
The invention aims to solve the technical problem of providing a gate frame tensioning trolley, so that a jack can move up and down, left and right and back and forth, the construction time is saved, the working efficiency of personnel is improved, the labor intensity of the personnel is reduced, and the safety guarantee of the personnel is improved.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a big portal stretch-draw platform truck, includes tractor, pump station, stretch-draw platform truck chassis, lift platform, stretch-draw work platform, lift portal, support cylinder, the pump station is installed on the tractor, the platform truck chassis is connected the tractor rear, platform truck chassis four corners all is equipped with a support cylinder platform truck chassis both sides top all is equipped with a lift portal, two lift portal intermediate junction has lift platform two stretch-draw work platforms of swing joint above the lift platform, every stretch-draw work platform top all is equipped with an electric block.
Preferably, stretch-draw work platform is including indulging platform and the sideslip platform of moving, connect above the sideslip platform indulge the platform of moving, indulge the platform top of moving and connect electric block sideslip frame, electric block sideslip frame one side is equipped with electric block indulge platform one side of moving is equipped with the electric cabinet, electric block and pump station are connected to the electric cabinet electricity, external power source and remote controller are connected to the electric cabinet electricity indulge the platform outside of moving and be equipped with the weight box, the weight box is located the relative one side of electric block.
Further preferably, indulge and move the platform and make by shaped steel welding indulge and move the platform both sides and be equipped with the below and all be equipped with two first gyro wheels, every first gyro wheel is in roll in the track of sideslip platform both sides, the sideslip platform is connected with the second pneumatic cylinder, the piston connection of second pneumatic cylinder indulges and moves the platform, the second pneumatic cylinder drives indulge and move the platform and be in the sideslip platform moves, second pneumatic cylinder UNICOM pump station.
Still further preferably, the tracks on both sides of the traverse platform are made of horizontally placed channel steel, and the shape of the first roller is matched with that of the side face of the channel steel.
Further preferably, the traverse platform is made of profile steel through welding, two second rollers are arranged on two sides below the traverse platform, the second rollers roll in tracks on two sides of the lifting platform, a first chain wheel is arranged on a shaft head of each second roller, a motor is arranged below the traverse platform, the shaft head of the motor is connected with the second chain wheel, a chain is arranged between the first chain wheel and the second chain wheel, the motor drives the second rollers to rotate through the chain so as to enable the traverse platform to move on the lifting platform, and the motor is electrically connected with the electric cabinet.
Still further preferably, the tracks on two sides below the lifting platform are made of horizontally placed channel steel, and the shape of the second roller is matched with the shape of the side face of the channel steel.
Further preferably, electric block sideslip frame both sides below all is equipped with two third gyro wheels, the third gyro wheel is in roll in indulging the track of moving the platform top indulge to be equipped with first pneumatic cylinder in the middle of moving the platform top, the piston rod of first pneumatic cylinder is connected electric block sideslip frame, the piston rod of first pneumatic cylinder drives electric block sideslip frame indulge and move on the platform, first pneumatic cylinder UNICOM the pump station.
Preferably, two fourth rollers are arranged at two ends of the lifting platform respectively, the fourth rollers roll in a track of the lifting gantry, a third hydraulic cylinder is vertically connected to one side of the lifting gantry, a piston rod of the third hydraulic cylinder is connected with one end of a chain, the other end of the chain bypasses a third chain wheel and is connected with the lifting platform, the third chain wheel is connected above the lifting gantry, a piston of the third hydraulic cylinder stretches and retracts to drive the lifting platform to move on the lifting gantry, and the third hydraulic cylinder is communicated with the pump station.
Further preferably, the track of the lifting gantry is made of vertically-arranged channel steel, and the shape of the fourth roller is matched with the shape of the side face of the channel steel.
Preferably, stretch-draw platform truck chassis rear portion below both sides are equipped with a first wheel respectively, the tractor four corners is equipped with a second wheel respectively, first wheel all contacts ground with the second wheel, first wheel guarantees with second wheel diameter size stretch-draw platform truck chassis level sets up, the minimum face after the support cylinder shrink is higher than ground.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
1. the tensioning trolley is provided with the tractor, so that the whole tensioning trolley can be conveniently moved; four supporting oil cylinders are arranged at four corners of the chassis of the tensioning trolley, and the chassis of the tensioning trolley can be supported and adjusted under the condition of uneven construction site, so that the chassis of the tensioning trolley is kept horizontal.
2. The lifting platform can be lifted along the lifting portal, the transverse moving platform in the tensioning working platform can transversely and horizontally move on the lifting platform, and the longitudinal moving platform can longitudinally and horizontally move on the tensioning working platform to drive a jack hoisted on the electric hoist to move in three directions, so that the construction of personnel is facilitated; the electric hoist transverse moving frame can transversely and horizontally move on the longitudinal moving platform to finely adjust the position of the electric hoist, so that a jack for hoisting the electric hoist can be easily positioned to penetrate into a steel strand, and the electric hoist transverse moving frame is labor-saving and convenient.
3. According to the invention, personnel can stand on the longitudinal moving platform to move along with the electric hoist and carry out remote control operation, so that the position and the tensioning working condition of the jack can be known and observed at any time, the jack can finish the tensioning work more quickly, the tensioning efficiency is improved, and the labor intensity of the personnel is reduced.
4. The counterweight box is arranged on one side, opposite to the electric hoist, of the longitudinal moving platform, so that partial tensioning pretightening force applied to the steel strand by the jack during working can be counteracted, the overturning moment applied to the longitudinal moving platform is reduced, the tensioning safety of the trolley is improved, and the service life of the trolley is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the construction of a tension work platform according to the present invention;
in the figure: 1. tractor 2, pump station 3, stretch-draw platform chassis 4, lift platform 5, stretch-draw work platform 6, lift portal 7, support cylinder 8, second gyro wheel 9, third gyro wheel 10, fourth gyro wheel 11, electric block 12, first pneumatic cylinder 13, indulge and move platform 14, sideslip platform 15, second pneumatic cylinder 16, first gyro wheel 17, motor 18, weight box 19, electric cabinet 20, electric block sideslip frame 21, third pneumatic cylinder 22, first wheel.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.
As shown in fig. 1, a big portal stretch-draw platform truck, including tractor 1, pump station 2, stretch-draw platform truck chassis 3, lift platform 4, stretch-draw work platform 5, lift portal 6, support cylinder 7, pump station 2 installs on tractor 1, platform truck chassis 3 is connected in tractor 1 rear, 3 four corners on platform truck chassis all are equipped with one and support cylinder 7, 3 both sides tops on platform truck chassis all are equipped with a lift portal 6, 6 intermediate junction have lift platform 4 at two lift portals, two stretch-draw work platform 5 of swing joint above lift platform 4, every stretch-draw work platform 5 top all is equipped with an electric block 11.
As shown in fig. 2, specifically, the tensioning working platform 5 includes a longitudinal moving platform 13 and a transverse moving platform 14, the longitudinal moving platform 13 is connected to the transverse moving platform 14, an electric hoist transverse moving frame 20 is connected to the upper side of the longitudinal moving platform 13, an electric hoist 11 is arranged on one side of the electric hoist transverse moving frame 20, an electric cabinet 19 is arranged on one side of the longitudinal moving platform 13, the electric cabinet 19 is electrically connected with the electric hoist 11 and the pump station 2, the electric cabinet is electrically connected with an external power supply and a remote controller, a weight box 18 is arranged on the outer side of the longitudinal moving platform 13, and the weight box 18 is located on the opposite side of the electric.
Further specifically, indulge and move platform 13 and make by the shaped steel welding, be equipped with the below at indulging and move platform 13 both sides and all be equipped with two first gyro wheels 16, every first gyro wheel 16 rolls in the track of sideslip platform 14 both sides, sideslip platform 14 is connected with second pneumatic cylinder 15, and the piston connection of second pneumatic cylinder 15 indulges and moves platform 13, and second pneumatic cylinder 15 drives and indulges and move platform 3 and move on sideslip platform 14, and second pneumatic cylinder 15 UNICOM pump station 2.
More specifically, the tracks on both sides of the traverse platform 14 are made of horizontally placed channel steel, and the shape of the first roller 16 is matched with the shape of the side surface of the channel steel.
Further specifically, sideslip platform 14 is made by shaped steel welding, both sides all are equipped with two second gyro wheels 8 below sideslip platform 14, second gyro wheel 8 rolls in the track of lift platform 4 both sides, the spindle nose of second gyro wheel 8 is equipped with first sprocket, be equipped with motor 17 below the sideslip platform, motor 17 spindle nose is connected with the second sprocket, be equipped with the chain between first sprocket and the second sprocket, thereby motor 17 drives second gyro wheel 8 through the chain and rotates and make sideslip platform 14 move on lift platform 4, electric cabinet 19 is connected to the motor 17 electricity.
More specifically, the tracks on two sides below the lifting platform 4 are made of horizontally placed channel steel, and the shape of the second roller 8 is matched with that of the side face of the channel steel.
Further specifically, two third rollers 9 are arranged below two sides of the electric hoist transverse moving frame 20, the third rollers 9 roll in a track above the longitudinal moving platform 13, a first hydraulic cylinder 12 is arranged in the middle above the longitudinal moving platform 13, a piston rod of the first hydraulic cylinder 12 is connected with the electric hoist transverse moving frame 20, the piston rod of the first hydraulic cylinder 12 drives the electric hoist transverse moving frame 20 to move on the longitudinal moving platform 13, and the first hydraulic cylinder 12 is communicated with the pump station 2.
Specifically, 4 both ends of lift platform are equipped with two fourth gyro wheels 10 respectively, fourth gyro wheel 10 rolls in lift portal 6's track and moves, at the vertical third pneumatic cylinder 21 of connecting in lift portal 6 one side, chain one end is connected to third pneumatic cylinder 21 piston rod, the chain other end is walked around the third sprocket and is connected lift platform 4, the third sprocket is connected in lift portal 6 top, the flexible lift platform 4 that drives of third pneumatic cylinder 21 piston moves on lift portal 6, third pneumatic cylinder 21 UNICOM pump station 2.
Further specifically, the track of the lifting gantry 6 is made of vertically-arranged channel steel, and the shape of the fourth roller is matched with the shape of the side face of the channel steel.
Specifically, two sides of the lower portion of the rear portion of the chassis 3 of the tensioning trolley are respectively provided with a first wheel 22, four corners of each towing trolley 1 are respectively provided with a second wheel, the first wheels and the second wheels are in contact with the ground, the diameter of the first wheels 22 and the diameter of the second wheels guarantee that the chassis 3 of the tensioning trolley is horizontally arranged, and the lowest surface of the support oil cylinder 7 after being contracted is higher than the ground.
When the tensioning trolley works, the tractor 1 pulls the tensioning trolley to a beam end designated position, and the support oil cylinder 7 extends to contact the ground to support the tensioning trolley. A person stands on the longitudinal moving platform 13, the electric hoist 11 is controlled by a remote controller to lift the jack, the lifting platform 4 is controlled by the person to be lifted to a proper position according to the position of a stretched pore channel, then the tensioning working platform 5 is controlled to move transversely to a proper position, the electric hoist transverse moving frame 20 is controlled by the remote controller to finely adjust the transverse position of the jack, and the longitudinal moving platform 13 moves the jack to the beam end to stretch the steel strand after the position is adjusted)
When the steel strands on the beam body are tensioned, two ends of the beam body respectively need one tensioning trolley to work simultaneously, two tensioning working platforms on each tensioning trolley work simultaneously, and the steel strands at the two ends of the beam body which are symmetrical left and right are tensioned simultaneously, so that the beam body is subjected to balanced pretightening force.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (10)
1. The utility model provides a big portal stretch-draw platform truck, its characterized in that, includes tractor (1), pump station (2), stretch-draw platform truck chassis (3), lift platform (4), stretch-draw work platform (5), lift portal (6), support cylinder (7), install pump station (2) on tractor (1), platform truck chassis (3) are connected tractor (1) rear, platform truck chassis (3) four corners all is equipped with one and supports cylinder (7) platform truck chassis (3) both sides top all is equipped with a lift portal (6), two lift portal (6) intermediate junction has lift platform (4) two stretch-draw work platform (5) of swing joint above lift platform (4), every stretch-draw work platform (5) top all is equipped with an electric block (11).
2. The gate frame tensioning trolley according to claim 1, wherein the tensioning working platform (5) comprises a longitudinal moving platform (13) and a transverse moving platform (14), the transverse moving platform (14) is connected with the longitudinal moving platform (13), an electric hoist transverse moving frame (20) is connected above the longitudinal moving platform (13), an electric hoist (11) is arranged on one side of the electric hoist transverse moving frame (20), an electric cabinet (19) is arranged on one side of the longitudinal moving platform (13), the electric cabinet (19) is electrically connected with the electric hoist (11) and a pump station (2), the electric cabinet is electrically connected with an external power source and a remote controller, a weight box (18) is arranged on the outer side of the longitudinal moving platform (13), and the weight box (18) is located on the opposite side of the electric hoist (11).
3. The gate frame tensioning trolley as claimed in claim 2, wherein the longitudinal moving platform (13) is made of welded section steel, two first rollers (16) are arranged below the two sides of the longitudinal moving platform (13), each first roller (16) rolls in a track on the two sides of the transverse moving platform (14), the transverse moving platform (14) is connected with a second hydraulic cylinder (15), a piston of the second hydraulic cylinder (15) is connected with the longitudinal moving platform (13), the second hydraulic cylinder (15) drives the longitudinal moving platform (13) to move on the transverse moving platform (14), and the second hydraulic cylinder (15) is communicated with the pump station (2).
4. A gate frame tensioning trolley as claimed in claim 3, characterised in that the tracks on both sides of the traverser platform (14) are made of horizontally placed channel steel, and the first roller (16) is shaped to match the profile of the side of the channel steel.
5. A gate frame tensioning trolley as claimed in claim 2, characterized in that the traverse platform (14) is made of welded steel, two second rollers (8) are arranged on two sides below the traverse platform (14), the second rollers (8) roll in the tracks on two sides of the lifting platform (4), a first chain wheel is arranged on a shaft head of each second roller (8), a motor (17) is arranged below the traverse platform, a second chain wheel is connected to a shaft head of the motor (17), a chain is arranged between the first chain wheel and the second chain wheel, the motor (17) drives the second rollers (8) to rotate through the chain so that the traverse platform (14) moves on the lifting platform (4), and the motor (17) is electrically connected with the electric control box (19).
6. A gate frame tensioning trolley as claimed in claim 5, characterised in that the rails on both sides below the lifting platform (4) are made of horizontally placed channel steel, and the profile of the second roller (8) is adapted to the profile of the side of the channel steel.
7. The gate frame tensioning trolley according to claim 2, wherein two third rollers (9) are arranged below two sides of the electric hoist transverse moving frame (20), the third rollers (9) roll in a track above the longitudinal moving platform (13), a first hydraulic cylinder (12) is arranged in the middle above the longitudinal moving platform (13), a piston rod of the first hydraulic cylinder (12) is connected with the electric hoist transverse moving frame (20), the piston rod of the first hydraulic cylinder (12) drives the electric hoist transverse moving frame (20) to move on the longitudinal moving platform (13), and the first hydraulic cylinder (12) is communicated with the pump station (2).
8. The gate frame tensioning trolley according to claim 1, wherein two fourth rollers (10) are arranged at two ends of the lifting platform (4) respectively, the fourth rollers (10) roll in a track of the lifting gate frame (6), a third hydraulic cylinder (21) is vertically connected to one side of the lifting gate frame (6), a piston rod of the third hydraulic cylinder (21) is connected with one end of a chain, the other end of the chain bypasses a third chain wheel and is connected with the lifting platform (4), the third chain wheel is connected above the lifting gate frame (6), a piston of the third hydraulic cylinder (21) stretches and retracts to drive the lifting platform (4) to move on the lifting gate frame (6), and the third hydraulic cylinder (21) is communicated with the pump station (2).
9. A gate frame tensioning trolley as claimed in claim 8, characterised in that the rail of the lifting gate frame (6) is made of a vertically erected channel steel, and the profile of the fourth roller is adapted to the profile of the side of the channel steel.
10. The gate frame tensioning trolley as claimed in claim 1, wherein two sides below the rear portion of the tensioning trolley chassis (3) are respectively provided with a first wheel (22), four corners of the tractor (1) are respectively provided with a second wheel, the first wheel and the second wheel are both in contact with the ground, the diameters of the first wheel (22) and the second wheel are such that the tensioning trolley chassis (3) is horizontally arranged, and the lowest surface of the retracted support cylinder (7) is higher than the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911341709.7A CN110847060A (en) | 2019-12-24 | 2019-12-24 | Big portal tension trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911341709.7A CN110847060A (en) | 2019-12-24 | 2019-12-24 | Big portal tension trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110847060A true CN110847060A (en) | 2020-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911341709.7A Pending CN110847060A (en) | 2019-12-24 | 2019-12-24 | Big portal tension trolley |
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| Country | Link |
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| CN (1) | CN110847060A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117108071A (en) * | 2023-10-20 | 2023-11-24 | 中铁九局集团第三建设有限公司 | Chassis system for tensioning trolley |
-
2019
- 2019-12-24 CN CN201911341709.7A patent/CN110847060A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117108071A (en) * | 2023-10-20 | 2023-11-24 | 中铁九局集团第三建设有限公司 | Chassis system for tensioning trolley |
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Address after: 050222 no.580 Shitong Road, Shijiazhuang City, Hebei Province Applicant after: Hebei GAODA Intelligent Equipment Co., Ltd Address before: 050222 First Floor, Building 12, Hebei (Fujian) Small and Medium-sized Enterprises Science and Technology Park, 580 Shitong Road, Luquan District, Shijiazhuang City, Hebei Province Applicant before: HEBEI GUNDAM PRESTRESS TECHNOLOGY Co.,Ltd. |