CN220763054U - Cast-in-situ beam prestress tensioning jig frame - Google Patents

Abstract

The application discloses cast-in-situ beam prestressing force tensioning bed-jig belongs to construction equipment technical field, including the mobile station, the wheel is installed in the outside of mobile station, the top slidable mounting of mobile station has the connecting seat, fixed mounting has the stretch-draw machine on the connecting seat, the outside of stretch-draw machine is provided with the movable structure, the movable structure includes fixed mounting the leading truck at stretch-draw machine top, the quantity of leading truck includes two. This cast-in-situ beam prestressing force tensioning bed-jig sets up the tension machine externally mounted connecting seat through setting up, sets up the mobile station and moves for the tension machine can be convenient for remove the use, avoids using support reduction equipment to use occupation space, makes the tension machine can be convenient for use in narrow and small scope, through setting up axis of rotation and gyro wheel through the position of rolling adjustment tension machine, rotates the traction axis of rotation through setting up the hand wheel, makes the regulation of tension machine convenient, has improved the practicality of device.

Description

Cast-in-situ beam prestress tensioning jig frame

Technical Field

The application relates to the field of building construction equipment, in particular to a cast-in-situ beam prestress tensioning jig frame.

Background

The prestress tensioning jig frame is tensioning equipment for a prestress concrete member, and the working principle of the prestress tensioning jig frame is that a tensioning steel beam is applied with preset tension through a tensioning machine, and then the tensioning steel beam is anchored at two ends of the concrete member to generate prestress.

The utility model refers to an utility model with the publication number of CN207794637U, which comprises four supporting legs, a supporting seat arranged above the four supporting legs and a winch sliding along the extending direction of the supporting seat, wherein a slideway is arranged on the supporting seat, a roller for driving the winch to synchronously slide is arranged in the slideway, the winch is fixedly arranged on the roller through a mounting plate, a limit groove arranged along the extending direction of the supporting seat is arranged on the side wall of the supporting seat, and a limit bolt matched with the limit groove is arranged on the mounting plate in a penetrating way.

In combination with the prior art and the scheme, the mode of conveniently moving the support is only suitable for a wide working environment, in the prestress application working environment of part of cast-in-situ beams, workers enter a narrow worker hole to apply prestress to the steel cable, so that the structure cannot be suitable for the prestress tensioning jig frame of the cast-in-situ beams, and the problem is solved.

Disclosure of Invention

Aiming at the defects of the prior art, the application provides the cast-in-situ beam prestress tensioning jig frame which has the advantages of being capable of adapting to narrow working environments, reducing manual fatigue and the like.

In summary, the present application provides the following technical solutions: the cast-in-situ beam prestress tensioning jig comprises a movable table, wheels are arranged on the outer side of the movable table, a connecting seat is slidably arranged on the top of the movable table, a tensioning machine is fixedly arranged on the connecting seat, and a movable structure is arranged outside the tensioning machine;

the movable structure comprises guide frames fixedly mounted at the top of the tensioning machine, the number of the guide frames comprises two, idler wheels are slidably mounted in the guide frames, rotating shafts penetrate through the idler wheels and are fixedly mounted on the idler wheels, a hand wheel is fixedly mounted at one end of each rotating shaft, a servo motor is fixedly mounted at the top of each movable table, a threaded rod is fixedly mounted at the output end of each servo motor, a traction frame is mounted on external threads of each threaded rod, and the traction frames are rotatably connected to the rotating shafts.

By adopting the technical scheme, the tensioning machine can be conveniently adjusted and used in a small range, and the occupied space of a large-sized jig frame is avoided.

Further, the middle part of the inner wall of the guide frame is protruded, and the roller is limited to move in the guide frame through the protruded part.

By adopting the technical scheme, the movable stability between the roller and the guide frame is improved.

Further, a guide rod penetrating through and connected to the traction frame in a sliding manner is fixedly arranged on the mobile station.

By adopting the technical scheme, the extension stability of the traction frame is improved.

Further, a gear is fixedly arranged outside the rotating shaft, a tooth slot is fixedly arranged at the top of the tensioning machine, and the gear is meshed with the tooth slot in a tooth shape.

By adopting the technical scheme, the movement stability of the rotating shaft is improved.

Further, a limiting hole is formed in one end of the rotating shaft, a limiting pin corresponding to the limiting hole is inserted into one end of the rotating shaft, and the cross sections of the limiting pin and the limiting hole are triangular.

Through adopting above-mentioned technical scheme for the spacer pin is when pegging graft in spacing hole, makes the relative rotation in spacer pin and spacing hole limited.

Further, a positioning wheel is fixedly arranged outside the limiting pin, an inner gear sleeve is fixedly arranged on the traction frame, and the positioning wheel is meshed with the inner gear sleeve in a tooth shape.

By adopting the technical scheme, the rotation of the positioning wheel can be limited by tooth-shaped engagement.

Further, the handle is fixedly arranged outside the positioning wheel.

By adopting the technical scheme, the plug of the positioning wheel can be conveniently controlled.

Further, the baffle is installed at both ends of the mobile station in a rotating way, and the baffle extends to the front face of the connecting seat.

By adopting the technical scheme, the sliding of the connecting seat relative to the mobile station can be limited by the baffle plate.

Further, a controller is mounted on one end of the mobile station.

By adopting the technical scheme, synchronous adjustment of traction frames on two sides can be realized.

This cast-in-situ beam prestressing force tensioning bed-jig sets up the tension machine externally mounted connecting seat through setting up, sets up the mobile station and moves for the tension machine can be convenient for remove the use, avoids using support reduction equipment to use occupation space, makes the tension machine can be convenient for use in narrow and small scope, through setting up axis of rotation and gyro wheel through the position of rolling adjustment tension machine, rotates the traction axis of rotation through setting up the hand wheel, makes the regulation of tension machine convenient, has improved the practicality of device.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is a schematic side view of the present application;

fig. 3 is a side view of the rotating shaft of the present application.

Reference numerals illustrate:

1. a mobile station; 2. a wheel; 3. a connecting seat; 4. a stretching machine; 5. a guide frame; 6. a roller; 7. a rotating shaft; 8. a traction frame; 9. a servo motor; 10. a threaded rod; 11. a guide rod; 12. a hand wheel; 13. a gear; 14. tooth slots; 15. a limiting pin; 16. a limiting hole; 17. a positioning wheel; 18. an inner tooth sleeve; 19. a handle; 20. a baffle; 21. and a controller.

Detailed Description

Referring to fig. 1-2, a cast-in-situ beam prestress tensioning jig in this embodiment includes a mobile station 1, wheels 2 are installed on the outer side of the mobile station 1, the mobile station 1 can be conveniently moved by the wheels 2 on the mobile station 1, a connecting seat 3 is slidably installed on the top of the mobile station 1, a tensioning machine 4 is fixedly installed on the connecting seat 3, and the tensioning machine 4 can be finely adjusted relative to the mobile station 1 by sliding the connecting seat 3 relative to the mobile station 1.

The outside of stretch-draw machine 4 in this embodiment is provided with the movable structure, and the movable structure includes fixed mounting at the leading truck 5 at stretch-draw machine 4 top, and the quantity of leading truck 5 includes two, and the inside slidable mounting of leading truck 5 has gyro wheel 6, and wherein the inner wall middle part of leading truck 5 is protruding, and gyro wheel 6 is restricted the activity in leading truck 5 through protruding part.

Further, the roller 6 is fixedly provided with the rotating shaft 7 in a penetrating manner, the roller 6 can be pulled to roll through the rotation of the rotating shaft 7, the hand wheel 12 is fixedly arranged at one end of the rotating shaft 7, the diameter length of the hand wheel 12 is determined according to the weight of the tensioning machine 4, the hand wheel 12 is guaranteed to rotate to pull the rotating shaft 7 to be of a labor-saving structure, and a worker can conveniently adjust the tensioning machine 4.

The top fixed mounting of mobile station 1 has servo motor 9, and servo motor 9's output end fixed mounting has threaded rod 10, and traction frame 8 is installed to the external screw thread of threaded rod 10, and traction frame 8 rotates to be connected in axis of rotation 7, can adjust the whole height of stretch-draw machine 4 through traction frame 8.

The guide rod 11 penetrating and slidably connected to the traction frame 8 is fixedly mounted on the mobile station 1, and the extension stability of the traction frame 8 is improved by the relative sliding between the guide rod 11 and the traction frame 8.

In this embodiment, the gear 13 is fixedly installed on the outer portion of the rotating shaft 7, the tooth slot 14 is fixedly installed on the top of the tensioning machine 4, the gear 13 is meshed with the tooth slot 14 in a tooth shape, and the stability of movement of the rotating shaft 7 is improved through the meshing movement between the gear 13 and the tooth slot 14.

Referring to fig. 3, a limiting hole 16 is formed at one end of the rotating shaft 7, a limiting pin 15 corresponding to the limiting hole 16 is inserted into one end of the rotating shaft 7, the cross sections of the limiting pin 15 and the limiting hole 16 are triangular, and the limiting pin 15 is limited in relative rotation between the limiting pin 15 and the limiting hole 16 when inserted into the limiting hole 16 due to the limitation of the triangular shape.

In order to position the limiting pin 15, a positioning wheel 17 is fixedly arranged outside the limiting pin 15, an inner gear sleeve 18 is fixedly arranged on the traction frame 8, the positioning wheel 17 is meshed with the inner gear sleeve 18 in a tooth shape, the positioning wheel 17 is inserted into the inner gear sleeve 18, and rotation of the positioning wheel 17 can be limited through tooth-shaped meshing.

The handle 19 is fixedly installed outside the positioning wheel 17, and the insertion and extraction of the positioning wheel 17 can be controlled conveniently by the handle 19.

The two ends of the mobile station 1 in this embodiment are rotatably provided with the baffle 20, the baffle 20 extends to the front surface of the connection base 3, and the sliding of the connection base 3 relative to the mobile station 1 can be limited by the baffle 20.

It should be noted that a controller 21 is mounted on one end of the mobile station 1, and the controller 21 controls the two servo motors 9 by electric driving, so that synchronous adjustment of the traction frames 8 on both sides can be realized by the controller 21.

The working principle of the embodiment is as follows:

when the automatic tensioning device is used in a narrow range, the movable table 1 and the wheels 2 can be directly pushed to move the tensioning device 4, the tensioning device 4 moves to the outside of a middle cross beam outside a cast-in-situ beam to extend out of a steel strand, the servo motors 9 on two sides are driven by the controller 21, the servo motors 9 drive the threaded rods 10 on the output ends to rotate, the threaded rods 10 drive the traction frame 8 to lift up through threaded cooperation, the tensioning device 4 and the connecting seat 3 are separated and lifted relative to the movable table 1 in the lifting process of the traction frame 8, after the tensioning device 4 is adjusted in place, the rotation shaft 7 rotates through rotating the handwheel 12, the rotation shaft 7 drives the idler wheels 6 and the gears 13 to rotate, fine adjustment is carried out on the position of the tensioning device 4, after adjustment, the limit pins 15 are pushed to be inserted into limit holes 16 on the rotation shaft 7, and the gears 13 are meshed with tooth grooves 14 at the moment to enable the tensioning device 4 to be supported in a tooth form, and the automatic tensioning device can be adjusted in a small range.

Claims (9)

1. The utility model provides a cast-in-place roof beam prestressing force tensioning bed-jig, includes mobile station (1), its characterized in that: the wheel (2) is arranged on the outer side of the mobile station (1), the connecting seat (3) is slidably arranged on the top of the mobile station (1), the tensioning machine (4) is fixedly arranged on the connecting seat (3), and a moving structure is arranged on the outer side of the tensioning machine (4);

the utility model provides a stretch-draw machine, including fixed mounting is in leading truck (5) at stretch-draw machine (4) top, the quantity of leading truck (5) includes two, the inside slidable mounting of leading truck (5) has gyro wheel (6), run through fixed mounting on gyro wheel (6) has axis of rotation (7), fixed mounting has hand wheel (12) on the one end of axis of rotation (7), the top fixed mounting of mobile station (1) has servo motor (9), fixed mounting has threaded rod (10) on the output of servo motor (9), traction frame (8) are installed to the external screw thread of threaded rod (10), traction frame (8) rotate connect in axis of rotation (7).

2. The cast-in-situ beam prestress tensioning jig of claim 1, wherein: the middle part of the inner wall of the guide frame (5) is convex, and the roller (6) is limited to move in the guide frame (5) through the convex part.

3. The cast-in-situ beam prestress tensioning jig of claim 1, wherein: the mobile station (1) is fixedly provided with a guide rod (11) penetrating through and connected with the traction frame (8) in a sliding manner.

4. The cast-in-situ beam prestress tensioning jig of claim 1, wherein: the outer part of the rotating shaft (7) is fixedly provided with a gear (13), the top of the tensioning machine (4) is fixedly provided with a tooth slot (14), and the gear (13) is meshed with the tooth slot (14) in a tooth shape.

5. The cast-in-situ beam prestress tensioning jig of claim 4, wherein: a limiting hole (16) is formed in one end of the rotating shaft (7), a limiting pin (15) corresponding to the limiting hole (16) is inserted into one end of the rotating shaft (7), and the cross sections of the limiting pin (15) and the limiting hole (16) are triangular.

6. The cast-in-situ beam prestress tensioning jig of claim 5, wherein: the outside fixed mounting of spacer pin (15) has locating wheel (17), fixed mounting has interior tooth cover (18) on traction frame (8), locating wheel (17) tooth form meshing in interior tooth cover (18).

7. The cast-in-situ beam prestress tensioning jig of claim 6, wherein: the outside of the positioning wheel (17) is fixedly provided with a handle (19).

8. The cast-in-situ beam prestress tensioning jig of claim 1, wherein: both ends of the mobile station (1) are rotatably provided with baffle plates (20), and the baffle plates (20) extend to the front surface of the connecting seat (3).

9. The cast-in-situ beam prestress tensioning jig of claim 1, wherein: a controller (21) is mounted on one end of the mobile station (1).