CN211872644U

CN211872644U - Steel strand prestress tension construction device

Info

Publication number: CN211872644U
Application number: CN201922363013.6U
Authority: CN
Inventors: 徐建春; 赵春霞; 宋春红
Original assignee: Zhejiang Jiuxin Construction Technology Co ltd
Current assignee: Zhejiang Jiuxin Construction Technology Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-11-06
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a steel strand wires prestressing force stretch-draw construction equipment, comprising a base plate, the welding has the support frame on the outer wall of bottom plate top, and the welding has the roof on the outer wall of support frame top, and the fixed plate has all been welded to roof top outer wall both sides, and has the lead screw through the bearing rotation between the relative one side outer wall of two fixed plates, and lead screw side outer wall is close to one end department and has the hand wheel through the mounting screw, has seted up the spout on the outer wall of roof top, and the inside sliding connection of spout has the slider that is threaded connection with the lead screw, and the jack. The utility model discloses a screw is installed the anchor slab on the jack that pierces through, can strengthen being connected of anchor slab and jack that pierces through, can realize simultaneously through the limiting plate that make the instrument clamping piece not need repeated installation when the repetition is backed down, when carrying out the stretch-draw to steel strand wires, can increase the security of whole device, avoids the steel strand wires fracture when stretch-draw, prevents that steel strand wires from launching the occurence of failure who hurts the people.

Description

Steel strand prestress tension construction device

Technical Field

The utility model relates to a bridge construction technical field especially relates to steel strand wires prestressing force stretch-draw construction equipment.

Background

In modern engineering structure construction, a prestressed steel strand structure is often adopted to improve the crack resistance, rigidity and impermeability of a member, and during the construction of the prestressed steel strand, one end of the prestressed steel strand is anchored firstly, and then the other end of the prestressed steel strand is anchored after tension force is complemented by a hydraulic jack, and the process is called steel strand prestressed tension construction.

At present, after a concrete continuous box girder is formed, each reserved hole anchor bundle is tensioned, and during tensioning, a tool clamping piece is required to be installed after being stopped after each inverted roof, so that the operation is complex, and during tensioning, an existing tool anchor plate is easy to fall off, so that a steel strand prestress tensioning construction device is urgently needed to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that the current prestressing force stretch-draw construction equipment operation that exists among the prior art frequently and the anchor slab easily drops, and the steel strand wires prestressing force stretch-draw construction equipment who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the steel strand prestress tensioning construction device comprises a bottom plate, wherein a support frame is welded on the outer wall of the top of the bottom plate, a top plate is welded on the outer wall of the top of the supporting frame, fixing plates are welded on two sides of the outer wall of the top plate, a screw rod is rotated between the outer walls of the opposite sides of the two fixing plates through a bearing, a hand wheel is installed at one end of the outer wall of the side surface of the screw rod, which is close to the end, through a screw, a sliding groove is arranged on the outer wall of the top plate, and the inner part of the sliding chute is connected with a sliding block in a sliding way, the sliding block is in threaded connection with the screw rod, the outer wall of the bottom of the sliding block is provided with a center-penetrating jack through a bolt, and the inner part of the output end of the piercing jack is inserted with an anchor plate, the outer wall of one end of the anchor plate far away from the piercing jack is provided with mounting holes distributed at equal intervals, and the tool clamping piece is inserted into the mounting hole, the outer wall of the side surface of the anchor plate is sleeved with a limiting plate, and the outer wall of one side of the limiting plate is provided with a through hole corresponding to the mounting hole.

Furthermore, a polished rod is welded between the outer walls of the two opposite sides of the fixed plates and is in sliding connection with the sliding block.

Furthermore, grooves are formed in the front face and the outer wall of the side face of the support frame, and a protective net is installed inside each groove through a bolt.

Further, the fagging all has been welded to bottom plate bottom outer wall both sides, and the welding of two relative one side outer wall bottoms of fagging has the base plate, the universal wheel is all installed through the bolt in base plate bottom outer wall four corners department.

Further, the pneumatic cylinder is all installed through the bolt in bottom plate bottom outer wall center department, and the output of pneumatic cylinder installs the mounting panel through the bolt, the equal threaded connection in mounting panel bottom outer wall four corners department has the connecting rod, and connecting rod side outer wall is close to bottom department threaded connection and has the backing plate, the welding has the spacing nail that is equidistant structural distribution on the outer wall of backing plate bottom, the equal screw thread all around of base plate top outer wall has the guide bar that is sliding connection with the mounting panel.

Furthermore, an oil tank is installed on one side of the outer wall of the top of the bottom plate through bolts, and the oil tank is communicated with the center-penetrating jack and the hydraulic cylinder.

The utility model has the advantages that:

1. through the anchor slab and the limiting plate that set up, install the anchor slab on the jack-through the screw when using the device, can strengthen being connected of anchor slab and jack-through, can realize making the instrument clamping piece not need the repeated installation when the repeated jack-down through the limiting plate simultaneously.

2. Through the support frame that sets up, when carrying out the stretch-draw to the steel strand wires, can increase the security of whole device, avoid the steel strand wires fracture when the stretch-draw, prevent that the steel strand wires from ejecting the occurence of failure of hindering the people.

3. Through the pneumatic cylinder that sets up, when using the device, can rise the position of punching jack and carry out the stretch-draw to the steel strand wires of difference, be favorable to strengthening the device's practicality, when rising, can fasten spacing nail subaerial simultaneously, prevent that the device from removing when the stretch-draw influences steel strand wires tensioning effect.

Drawings

Fig. 1 is a front view of the steel strand prestress tension construction device provided by the utility model;

fig. 2 is a side sectional view of the structure of the steel strand prestress tension construction device provided by the utility model;

fig. 3 is the utility model provides a steel strand wires prestressing force stretch-draw construction equipment's punching jack output end schematic diagram.

In the figure: 1 supporting plate, 2 bottom plates, 3 oil tanks, 4 supporting frames, 5 top plates, 6 grooves, 7 protective nets, 8 fixing plates, 9 hand wheels, 10 lead screws, 11 polished rods, 12 sliding blocks, 13 base plates, 14 hydraulic cylinders, 15 guide rods, 16 mounting plates, 17 connecting rods, 18 limit nails, 19 piercing jacks, 20 anchor plates, 21 limiting plates, 22 through holes, 23 mounting holes, 24 tool clamping pieces, 25 sliding grooves, 26 universal wheels and 27 backing plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, the steel strand prestress tensioning construction device includes a bottom plate 2, a support frame 4 welded on the outer wall of the top of the bottom plate 2, a top plate 5 welded on the outer wall of the top of the support frame 4, fixing plates 8 welded on both sides of the outer wall of the top plate 5, a screw rod 10 rotating between the outer walls of the two opposite sides of the fixing plates 8 through a bearing for driving a slide block 12 to move under the action of a hand wheel 9, thereby moving a center-penetrating jack 19 so as to tension steel strands of different lengths, a hand wheel 9 mounted on the outer wall of the side surface of the screw rod 10 near one end through a screw for driving the screw rod 10 to move, a chute 25 formed on the outer wall of the top plate 5, and a slide block 12 in threaded connection with the screw rod 10 in sliding connection with the chute 25 for driving the center-penetrating jack 19 to move under, the outer wall of the bottom of the sliding block 12 is provided with a penetrating jack 19 through a bolt, the penetrating jack 19 is of an RCH (remote control) type and is used for tensioning a steel strand, an anchor plate 20 is inserted into the output end of the penetrating jack 19 and is used for anchoring the steel strand during tensioning, mounting holes 23 which are distributed equidistantly are formed in the outer wall of one end, away from the penetrating jack 19, of the anchor plate 20 and are used for mounting tool clamping pieces 24, tool clamping pieces 24 are inserted into the mounting holes 23 and are used for anchoring the steel strand during tensioning, limiting plates 21 are sleeved on the outer wall of the side faces of the anchor plate 20 and are used for preventing the tool clamping pieces 24 from falling off, the tool clamping pieces 24 do not need to be mounted repeatedly when the steel strand is repeatedly inverted, and through holes 22 corresponding to the mounting holes 23 are formed in the outer wall of one side of the.

Furthermore, a polish rod 11 is welded between the outer walls of the opposite sides of the two fixing plates 8 and used for guiding the movement of the sliding block 12, and the polish rod 11 is in sliding connection with the sliding block 12.

Furthermore, grooves 6 are formed in the front face and the outer wall of the side face of the support frame 4, so that a constructor can observe the tensioning condition of the center-penetrating jack 19 conveniently, a protective net 7 is mounted inside each groove 6 through a bolt, and the constructor is prevented from being damaged by bursting and flying during tensioning of steel strands.

Further, 2 bottom outer wall both sides of bottom plate have all welded fagging 1 for supporting baseplate 2, and the welding of two fagging 1 relative one side outer wall bottom has base plate 13, and base plate 13 bottom outer wall four corners department all installs universal wheel 26 through the bolt, and the staff of being convenient for removes the device.

Further, pneumatic cylinder 14 is all installed through the bolt in bottom plate 2 bottom outer wall center department, pneumatic cylinder 14's model is HOB80 series, be used for rising bottom plate 2, and then rise and wear jack 19 and carry out stretch-draw to the steel strand wires of co-altitude, and mounting panel 16 is installed through the bolt to the output of pneumatic cylinder 14, the equal threaded connection in mounting panel 16 bottom outer wall four corners department has connecting rod 17, can transmit the motion for backing plate 27 during the mounting panel 16 motion, make backing plate 27 go up and down, and connecting rod 17 side outer wall is close to bottom department threaded connection has backing plate 27, the welding has the spacing nail 18 that is equidistant structure distribution on the outer wall of backing plate 27 bottom, be used for making the device lock subaerial, remove when preventing stretch-draw, base plate 13 top outer wall all around the screw thread have the guide bar 15.

Further, an oil tank 3 is installed on one side of the outer wall of the top of the bottom plate 2 through a bolt, power media are provided for the movement of the penetrating jack 19 and the hydraulic cylinder 14, and the oil tank 3 is communicated with the penetrating jack 19 and the hydraulic cylinder 14.

The working principle is as follows: when the prestressed tensioning construction device is used, a constructor moves the prestressed tensioning construction device to a steel strand to be tensioned through the universal wheel 26, then installs a proper anchor plate 20 according to the diameter of the steel strand, inserts the anchor plate 20 into the output end of the penetrating jack, fixes the anchor plate 20 on the penetrating jack 19 through a screw, inserts the tool clamping piece 24 into the installation hole 23, fastens the limiting plate 18 on the anchor plate 20 through a screw to prevent the tool clamping piece 24 from falling off, then raises the device through the position height of the steel strand, opens the hydraulic cylinder 14, drives the installation plate 16 to move downwards under the driving of the hydraulic cylinder 14 to push the connecting rod 17 to move, so that the backing plate 27 is in contact with the ground, simultaneously inserts the limiting nail 18 on the outer wall of the bottom of the backing plate 27 into the ground to prevent the device from moving during tensioning of the device, and shakes the hand wheel 9 to drive the slide block 12 to move in the chute 25 through the lead screw 10, so that the penetrating jack 19 is close to the steel strand, then the steel strand is inserted into the tool clamping piece 24 through the through hole 22 and enters the other end inside the penetrating jack 19 through the mounting hole 23, and then the penetrating jack 19 is started to perform prestress tensioning on the steel strand.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The steel strand prestress tensioning construction device comprises a bottom plate (2) and is characterized in that a support frame (4) is welded on the outer wall of the top of the bottom plate (2), a top plate (5) is welded on the outer wall of the top of the support frame (4), fixing plates (8) are welded on two sides of the outer wall of the top plate (5), a lead screw (10) is rotated between the outer walls of two opposite sides of the two fixing plates (8) through a bearing, a hand wheel (9) is mounted at one end, close to the side outer wall, of the lead screw (10) through a screw, a sliding groove (25) is formed in the outer wall of the top plate (5), a sliding block (12) in threaded connection with the lead screw (10) is connected inside the sliding groove (25) in a sliding mode, a center penetrating jack (19) is mounted on the outer wall of the, the anchor plate is characterized in that mounting holes (23) distributed equidistantly are formed in the outer wall of one end, far away from the center-penetrating jack (19), of the anchor plate (20), tool clamping pieces (24) are inserted into the mounting holes (23), limiting plates (21) are sleeved on the outer wall of the side face of the anchor plate (20), and through holes (22) corresponding to the mounting holes (23) are formed in the outer wall of one side of each limiting plate (21).

2. The steel strand prestress tensioning construction device according to claim 1, wherein a polish rod (11) is welded between the outer walls of the two opposite sides of the fixing plates (8), and the polish rod (11) is in sliding connection with the sliding block (12).

3. The steel strand prestress tensioning construction device according to claim 1, wherein grooves (6) are formed in the outer walls of the front face and the side face of the support frame (4), and a protective net (7) is installed inside each groove (6) through a bolt.

4. The steel strand prestress tensioning construction device as claimed in claim 1, wherein supporting plates (1) are welded to two sides of the outer wall of the bottom plate (2), a base plate (13) is welded to the bottom of the outer wall of the opposite side of the two supporting plates (1), and universal wheels (26) are mounted at four corners of the outer wall of the bottom of the base plate (13) through bolts.

5. The steel strand prestress tensioning construction device according to claim 4, wherein a hydraulic cylinder (14) is mounted at the center of the outer wall of the bottom of the base plate (2) through bolts, a mounting plate (16) is mounted at the output end of the hydraulic cylinder (14) through bolts, connecting rods (17) are connected to four corners of the outer wall of the bottom of the mounting plate (16) in a threaded mode, a base plate (27) is connected to the outer wall of the side face of each connecting rod (17) in a threaded mode near the bottom end, limit nails (18) distributed in an equidistant structure are welded to the outer wall of the bottom of the base plate (27), and guide rods (15) in sliding connection with the mounting plate (16) are arranged on the periphery of the outer wall of.

6. The steel strand prestress tensioning construction device as claimed in claim 1, wherein an oil tank (3) is installed on one side of the outer wall of the top of the bottom plate (2) through bolts, and the oil tank (3) is communicated with the through jack (19) and the hydraulic cylinder (14).