CN213497591U - Low-retraction secondary tensioning anchorage device supporting nut screwing device - Google Patents

Low-retraction secondary tensioning anchorage device supporting nut screwing device Download PDF

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Publication number
CN213497591U
CN213497591U CN202022323772.2U CN202022323772U CN213497591U CN 213497591 U CN213497591 U CN 213497591U CN 202022323772 U CN202022323772 U CN 202022323772U CN 213497591 U CN213497591 U CN 213497591U
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groove
fixedly connected
low
seted
transmission shaft
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CN202022323772.2U
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王雷
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TIANJIN SHENGWEN PRESTRESSED MACHINERY CO Ltd
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TIANJIN SHENGWEN PRESTRESSED MACHINERY CO Ltd
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Abstract

The utility model discloses a low secondary stretch-draw ground tackle bearing nut tightening device that contracts belongs to bridge engineering technical field, including drive motor, drive motor's output fixedly connected with transmission shaft's input, the spacing groove has been seted up to the inside of transmission shaft, the inside sliding connection of spacing groove has the gag lever post, the one end fixedly connected with sill bar of gag lever post, the inside groove has been seted up to one side of sill bar, the inside of inside groove is inlayed and is connected with the spring, one side sliding connection of spring has the clamp plate, the protruding button of top fixedly connected with of clamp plate, the one end fixedly connected with cardboard of sill bar, the shifting chute has been seted up to one side of cardboard, the bottom of shifting chute is rotated and is connected with the threaded rod. The utility model discloses a cardboard of installation can adjust the distance of the fixed plate of both sides for the fixed plate can block the back nut of different models size is fixed, and then can improve the result of use.

Description

Low-retraction secondary tensioning anchorage device supporting nut screwing device
Technical Field
The utility model relates to a bridge engineering technical field especially relates to a low secondary stretch-draw ground tackle bearing nut tightening device that contracts.
Background
The anchorage device is a permanent anchorage device used in prestressed concrete, and is an anchorage tool, also called a prestressed anchorage device, used in a post-tensioning structure or component for maintaining the tensile force of a prestressed tendon and transmitting the tensile force to the interior of the concrete.
Patent No. CN202181508U discloses a low-retraction secondary tensioning anchor supporting nut tightening device. The secondary tensioning anchor device mainly aims to solve the technical problems that a support nut of an existing secondary tensioning anchor device with low retraction is inconvenient to screw and the like. The technical scheme is as follows: the tension anchor comprises an inward convex connecting sleeve, a transition sleeve, a passive rotating wheel, a driving rotating wheel, a power machine and a tension bracket, wherein an inner boss is designed in the inner cavity of the inward convex connecting sleeve and matched with a groove corresponding to the periphery of a secondary tension anchor supporting nut; the upper end surface of the inward convex connecting sleeve is provided with more than one groove, the lower end surface of the transition sleeve is provided with more than one boss matched with the groove on the upper end surface of the inward convex connecting sleeve, and the groove on the upper end surface of the inward convex connecting sleeve and the boss on the lower end surface of the transition sleeve are in clearance fit connection; the transition sleeve is provided with a rotating device. The method better solves the problem of screwing the support nut of the low-retraction secondary tensioning anchor, can greatly reduce the size of the reserved groove of the bridge deck, reduce the cut section of the bridge concrete, reduce the operation difficulty of the knob support nut and improve the construction efficiency. The method can be widely applied to the engineering of box girder construction by adopting a suspension casting construction method, in particular to the installation and use of a vertical prestress low-retraction secondary tensioning anchorage device in bridge engineering.
The low-retraction secondary tensioning anchorage supporting nut tightening device has the following disadvantages when in use:
1. the low-retraction secondary tensioning anchorage device supporting nut screwing device cannot fix supporting nuts of different types when in use, so that the device is poor in use flexibility.
2. When the low-retraction secondary tensioning anchorage device supporting nut screwing device is used, supporting nuts of different depths cannot be screwed, so that the using effect is poor
SUMMERY OF THE UTILITY MODEL
The utility model provides a low secondary stretch-draw ground tackle bearing nut screwing device that contracts aims at the cardboard through the installation, can adjust the distance of the fixed plate of both sides for the fixed plate can block the bearing nut of different models size is fixed, and then can improve the result of use.
The utility model provides a specific technical scheme as follows:
the utility model provides a low-retraction secondary tensioning anchorage device supporting nut tightening device, which comprises a transmission motor, wherein the output end of the transmission motor is fixedly connected with the input end of a transmission shaft, the inside of the transmission shaft is provided with a limit groove, the inside of the limit groove is slidably connected with a limit rod, one end of the limit rod is fixedly connected with a bottom rod, one side of the bottom rod is provided with an inner groove, the inside of the inner groove is embedded and connected with a spring, one side of the spring is slidably connected with a pressing plate, the top end of the pressing plate is fixedly connected with a convex button, one end of the bottom rod is fixedly connected with a clamping plate, one side of the clamping plate is provided with a moving groove, the bottom end of the moving groove is rotatably connected with a threaded rod, the two ends of the threaded rod are matched and connected with a threaded sleeve, the outer side of, one end of the connecting rod is fixedly connected with a fixing plate.
Optionally, one side of the threaded rod is provided with a thread a, one side of the threaded rod, which is far away from the thread a, is provided with a thread B, and the directions of the thread a and the thread B are opposite.
Optionally, a clamping hole is formed in one side of the transmission shaft, and the size of the clamping hole is the same as that of the convex button.
Optionally, one side of the clamping plate is provided with a groove, a pentagonal bolt is rotatably connected inside the groove, and the size of the pentagonal bolt is smaller than that of the groove.
Optionally, the input end of the transmission motor is electrically connected to an external power source.
The utility model has the advantages as follows:
1. the utility model uses the installed clamping plate, the external device is inserted in the groove before use, the device is clamped outside the pentagonal bolt, the rotating device drives the threaded rod to rotate, the threaded rod drives the threaded sleeve through the threads at two ends, so that the threads A and the threads B drive the threaded sleeve to move and rotate outside the threaded rod through the matching action with the threads in the threaded sleeve, the threaded rod drives the threaded sleeves at two sides to move and rotate respectively in two directions while rotating due to the opposite thread directions of the threads A and the threads B, the outer bearing sleeve outside the threaded sleeve can prevent the threaded sleeve from driving the connecting rod at the top end to rotate while rotating in a moving way through the rotating action of the inner balls while rotating in a moving way, so that the connecting rod can drive the fixed plate at one end to move left and right in the moving groove, and then the distance between the regulation fixed plate that can be quick for the fixed distance of fixed plate is adjustable, fixes the back nut of different models size, screws up the rotatory back nut that fixes through drive motor, makes the use of device convenient and fast more.
2. The utility model discloses a transmission shaft of installation, when needs rotate the fixation to the back nut of the different degree of depth on the bridge floor, press the convex button, make the convex button drive the inside spring of bottom clamp plate extrusion inside groove, the spring receives the pressure that comes from the clamp plate, produce certain elastic deformation, make the inside space grow of inside groove, the convex button that drives the clamp plate top removes the inside of shrink to the inside groove, make the downward pull sill bar of making afterwards, make the gag lever post of sill bar one end reciprocate in the inside of spacing groove, the spacing groove is the bar connected in star, can prevent effectively that the gag lever post from driving the inside rotation of sill bar at the transmission shaft, make the cardboard that drive motor drove sill bar one side rotate, screw up back nut is fixed, and then can improve the result of use.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a low-retraction secondary tensioning anchor support nut tightening device according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a transmission shaft of a low-retraction secondary tensioning anchor supporting nut tightening device according to an embodiment of the present invention;
fig. 3 is a schematic view of a clamping plate structure of a device for tightening a support nut of a low-retraction secondary tension anchor according to an embodiment of the present invention.
In the figure: 1. a drive motor; 2. a drive shaft; 3. a bottom bar; 4. clamping a plate; 5. a moving groove; 6. a connecting rod; 7. a fixing plate; 8. a threaded rod; 9. a thread A; 10. a thread B; 11. a threaded sleeve; 12. an outer bearing sleeve; 13. a groove; 14. a pentagonal bolt; 15. an inner tank; 16. a spring; 17. pressing a plate; 18. a convex button; 19. a clamping hole; 20. a limiting groove; 21. a limiting rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, 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 efforts belong to the protection scope of the present invention.
A low-retraction secondary tensioning anchor support nut tightening device according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3.
Referring to fig. 1 and 2, a low-retraction secondary tensioning anchor supporting nut tightening device provided in an embodiment of the present invention includes a transmission motor 1, an output end of the transmission motor 1 is fixedly connected with an input end of a transmission shaft 2, the transmission shaft 2 is internally provided with a limiting groove 20, the limiting groove 20 is internally slidably connected with a limiting rod 21, one end of the limiting rod 21 is fixedly connected with a bottom rod 3, one side of the bottom rod 3 is provided with an inner groove 15, the inner part of the inner groove 15 is connected with a spring 16 in an embedded manner, one side of the spring 16 is slidably connected with a pressing plate 17, a top end of the pressing plate 17 is fixedly connected with a convex button 18, one end of the bottom rod 3 is fixedly connected with a clamping plate 4, one side of the clamping plate 4 is provided with a moving groove 5, a bottom end of the moving groove 5 is rotatably connected with a threaded rod 8, two ends of the, the outside of threaded sleeve 11 is rotated and is connected with outer bearing housing 12, the one end fixedly connected with of outer bearing housing 12 connects pole 6, connect the one end fixedly connected with fixed plate 7 of pole 6, through the cardboard of installation, can adjust the distance of the fixed plate of both sides for the fixed plate can block the bearing nut of different models size is fixed, and then can improve the result of use.
Referring to fig. 1 and 2, a thread a9 is opened on one side of the threaded rod 8, a thread B10 is opened on one side of the threaded rod 8 away from the thread a9, the direction of the thread a9 is opposite to that of the thread B10, and the threaded rod can drive the threaded sleeves on the two sides to move and rotate in opposite directions when rotating through the opened thread a and the thread B.
Referring to fig. 3, a clamping hole 19 is formed in one side of the transmission shaft 2, the size of the clamping hole 19 is the same as that of the convex button 18, and the convex button can drive the bottom rod to be clamped inside the transmission shaft through the arranged clamping hole.
Referring to fig. 2, a groove 13 is formed in one side of the clamping plate 7, a pentagonal bolt 14 is rotatably connected inside the groove 13, the size of the pentagonal bolt 14 is smaller than that of the groove 13, and the pentagonal bolt can rotate inside the clamping plate through the formed groove.
Referring to fig. 1 and 2, the input end of the transmission motor 1 is electrically connected to an external power source.
The embodiment of the utility model provides a low back-draw secondary stretch-draw ground tackle bearing nut screwing device, before the use, peg graft inside recess 13 through outside utensil, with the utensil joint in the outside of pentagon bolt 14, it drives threaded rod 8 rotation to rotate the utensil, threaded rod 8 drives threaded sleeve 11 through the screw thread at both ends, make screw thread A9 and screw thread B10 through the mating reaction with the screw thread inside threaded sleeve 11, drive threaded sleeve 11 and remove the rotation in the outside of threaded rod 8, because the screw thread A9 is opposite with the screw thread direction of screw thread B10, make threaded rod 8 when the pivoted, drive the threaded sleeve 11 of both sides respectively to two directions removal rotations, outer bearing housing 12 outside threaded sleeve 11, can be when removing the pivoted, through the rotating action of inside ball, prevent that threaded sleeve 11 from removing the pivoted and driving extension rod 6 on top and rotate, the extension rod 6 can drive the fixing plate 7 at one end to move left and right in the moving groove 5, and further can quickly adjust the distance between the fixing plates 7, so that the fixing distance of the fixing plates 7 can be adjusted, the supporting nuts with different models and sizes are fixed, the fixed supporting nuts are screwed by the transmission motor 1, the device is more convenient and quicker to use, when the supporting nuts with different depths on the bridge floor are required to be rotationally fixed, the convex button 18 is pressed, the convex button 18 drives the bottom end pressing plate 17 to extrude the spring 16 in the inner groove 15, the spring 16 generates certain elastic deformation under the pressure of the pressing plate 17, the space in the inner groove 15 is enlarged, the convex button 18 above the pressing plate 17 is driven to move and contract into the inner groove 15, then the bottom rod 3 is upwards or downwards pulled, and the limiting rod 21 at one end of the bottom rod 3 moves up and down in the limiting groove 20, the spacing groove is 20 bar grooves, can prevent effectively that gag lever post 21 from driving sill bar 3 and rotating in the inside of transmission shaft 2 for driving motor 1 and driving cardboard 4 of sill bar 3 one side and rotate, screw up bearing nut is fixed, and then can improve the result of use.
It should be noted that the utility model relates to a low-retraction secondary tensioning anchor supporting nut tightening device, which comprises a transmission motor 1, a transmission shaft 2, a bottom rod 3, a clamping plate 4, a moving groove 5, a connecting rod 6, a fixing plate 7, a threaded rod 8, a thread A9, a thread B10, a threaded sleeve 11, an outer bearing sleeve 12, a groove 13, a pentagonal bolt 14, an inner groove 15, a spring 16, a pressing plate 17, a convex button 18, a clamping hole 19, a limiting groove 20 and a limiting rod 21, the electrical components are all products in the prior art, the technical personnel in the field select, install and complete the debugging operation of the circuit according to the use requirement to ensure that all the electrical equipment can work normally, the components are all universal standard components or components known by the technical personnel in the field, the structure and principle are known to the skilled person through technical manuals or through routine experimentation, and the applicant is not specifically limited herein.
It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (5)

1. The utility model provides a low back-retraction secondary stretch-draw anchorage device supporting nut screwing device, includes drive motor (1), its characterized in that, the output fixedly connected with transmission shaft (2) of drive motor (1) input, spacing groove (20) have been seted up to the inside of transmission shaft (2), the inside sliding connection of spacing groove (20) has gag lever post (21), the one end fixedly connected with sill bar (3) of gag lever post (21), inside groove (15) have been seted up to one side of sill bar (3), the inside of inside groove (15) is inlayed and is connected with spring (16), one side sliding connection of spring (16) has clamp plate (17), the top fixedly connected with convex button (18) of clamp plate (17), the one end fixedly connected with cardboard (4) of sill bar (3), removal groove (5) have been seted up to one side of cardboard (4), the bottom of removal groove (5) rotates and is connected with threaded rod (8), the both ends cooperation of threaded rod (8) is connected with threaded sleeve (11), the outside of threaded sleeve (11) is rotated and is connected with outer bearing housing (12), the one end fixedly connected with of outer bearing housing (12) connects pole (6), the one end fixedly connected with fixed plate (7) that connects pole (6).
2. A low retraction secondary tensioning anchor back nut tightening device according to claim 1, wherein one side of the threaded rod (8) is threaded a (9), the side of the threaded rod (8) remote from the thread a (9) is threaded B (10), and the threads a (9) and B (10) are in opposite directions.
3. The device for tightening the support nut of the low-retraction secondary tensioning anchor according to claim 1, wherein a clamping hole (19) is formed in one side of the transmission shaft (2), and the size of the clamping hole (19) is the same as that of the convex button (18).
4. The device for tightening the support nut of the low-retraction secondary tensioning anchor according to claim 1, wherein a groove (13) is formed in one side of the clamping plate (4), a pentagonal bolt (14) is rotatably connected to the inside of the groove (13), and the size of the pentagonal bolt (14) is smaller than that of the groove (13).
5. The device for tightening the support nut of the low-retraction secondary tensioning anchor according to claim 1, wherein the input end of the transmission motor (1) is electrically connected to an external power source.
CN202022323772.2U 2020-10-19 2020-10-19 Low-retraction secondary tensioning anchorage device supporting nut screwing device Active CN213497591U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022323772.2U CN213497591U (en) 2020-10-19 2020-10-19 Low-retraction secondary tensioning anchorage device supporting nut screwing device

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Application Number Priority Date Filing Date Title
CN202022323772.2U CN213497591U (en) 2020-10-19 2020-10-19 Low-retraction secondary tensioning anchorage device supporting nut screwing device

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CN213497591U true CN213497591U (en) 2021-06-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115057336A (en) * 2022-05-17 2022-09-16 中铁七局集团郑州工程有限公司 Installation device for boom tray and boom nut of beam lifting machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115057336A (en) * 2022-05-17 2022-09-16 中铁七局集团郑州工程有限公司 Installation device for boom tray and boom nut of beam lifting machine
CN115057336B (en) * 2022-05-17 2023-04-07 中铁七局集团郑州工程有限公司 Installation device for boom tray and boom nut of beam lifting machine
WO2023151702A1 (en) * 2022-05-17 2023-08-17 中铁七局集团有限公司 Mounting device for hoisting rod pallet and hoisting rod nut of girder crane

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