CN201794310U - Automatic nut screwing device for prestress tensioning machine - Google Patents
Automatic nut screwing device for prestress tensioning machine Download PDFInfo
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- CN201794310U CN201794310U CN 201020292939 CN201020292939U CN201794310U CN 201794310 U CN201794310 U CN 201794310U CN 201020292939 CN201020292939 CN 201020292939 CN 201020292939 U CN201020292939 U CN 201020292939U CN 201794310 U CN201794310 U CN 201794310U
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- nut
- winding device
- automatic winding
- sprocket
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Abstract
The utility model discloses an automatic nut screwing device for a prestress tensioning machine, which comprises a hexagonal lock nut, an inner hexagonal sleeve, a cylindrical bearing block, a driven sprocket, a driving sprocket, at least one chain and an oil motor. The hexagonal lock nut is spirally and rotatably arranged on a threaded pull rod of the tensioning machine, the chains connect the driven sprocket with the driving sprocket, and the oil motor drives the driving sprocket to rotate and is supported on the outer surface of the bearing block. The automatic nut screwing device can automatically lock the nut when the tensioning machine tensions a reinforcing steel bar in a prestressing manner, and overcomes the shortcomings of low efficiency, large labor intensity and high dangerousness of manual nut screwing.
Description
Technical field
The utility model relates to a kind of accessory that is used for the prestressing force machine drawing, especially a kind of automatic winding device of nut that is used for the prestressing force machine drawing.
Background technology
In order to improve the impact force that concrete pile bears pile driver, improve the penetrability of stake, nowadays generally adopt prestressed concrete pile, be about to reinforcing bar and make skeleton, insert in the punching block, fluid concrete carries out stretch-draw to reinforcing bar after closing up punching block, make reinforcing bar bear prestressing force, again by carrying out maintenance behind the centrifuge centrifugal forming.
Reinforcing bar produces prestressing force after stretch-draw, this prestressing force to be kept after stretch-draw finishes, just after steel bar stretching arrives the prestressing force of setting, the nut on the pull bar be screwed, it is close on the punching block, makes the reinforcing bar that is stretched be unlikely to lose prestressing force because of the resilience contraction.
The mode of locking nut all is by hand nut to be screwed at present.This mode efficient is low, and labour intensity is big, and very dangerous, in actual production process, ruptures very fast resilience under the stretching force effect that template can the be powerful and as easy as rolling off a log injured situation of workman's hand that causes occurs suddenly in case the invar muscle takes place.
The utility model content
The technical problems to be solved in the utility model provides a kind of automatic winding device of nut that is used for the prestressing force machine drawing, to reduce or to avoid problem noted earlier.
For solving the problems of the technologies described above, the utility model proposes a kind of automatic winding device of nut that is used for the prestressing force machine drawing, the automatic winding device of described nut comprises a hexagonal locking nut, but be arranged on the thread of described stretch-draw machine to this hexagonal locking nut helical rotation, the automatic winding device of described nut also comprises:
An interior Hexagonal jacket, Hexagonal jacket is enclosed within on the described hexagonal locking nut and by rotating the described hexagonal locking nut of drive and moves forward and backward along described thread spirally in this;
Axis around described thread is supported on the tubular bearing support on the described stretch-draw machine, be provided with in this bearing support support described in Hexagonal jacket around the bearing of the rotational of described thread;
One by movable sprocket, its with described in Hexagonal jacket fixedly connected;
A drive sprocket, it is supported on described bearing support outer surface;
An at least one open slot that passes on the described bearing support connects described by the chain of movable sprocket and described drive sprocket;
One drives the oil motor that described drive sprocket rotates, and this oil motor is supported on described bearing support outer surface.
Preferably, the automatic winding device of described nut further comprises an encoder that is connected on the described oil motor output shaft, a programmable logic controller, a displacement transducer that is used to survey described pull bar displacement, described encoder links to each other with described programmable logic controller by holding wire with described displacement transducer.
Preferably, described interior Hexagonal jacket passes through former and later two bearings in described bearing support.
Preferably, described by the movable sprocket setting between described former and later two bearings.
Preferably, described drive sprocket and describedly be the double rows of teeth sprocket wheel by movable sprocket, described drive sprocket connects described by movable sprocket by two chains.
Preferably, two toothrows of described double rows of teeth sprocket wheel are identical, and have an angle that staggers of eliminating drive gap between the tooth of position correspondence.
The automatic winding device of nut of the present utility model can carry out automatic locking nut in the prestressed stretch-draw process to reinforcing bar at the stretch-draw machine, has avoided manual locking nut efficient low, and labour intensity is big, dangerous big defective.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein,
Fig. 1 shows is structural representation according to a kind of prestressing force machine drawing of the present utility model;
Fig. 2 shows is decomposition diagram according to the automatic winding device of nut of a specific embodiment of the present utility model;
What Fig. 3 showed is the sectional view of the automatic winding device of nut shown in Figure 2;
What Fig. 4 showed is the right side view of the automatic winding device of nut shown in Figure 3;
What Fig. 5 showed is the lateral view of double rows of teeth sprocket wheel.
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model.Wherein, identical parts adopt identical label.
Fig. 1 shows is structural representation according to a kind of prestressing force machine drawing of the present utility model, as shown in the figure, this prestressing force machine drawing A integrated support is on a support 1, this support 1 comprises the two-layer pulley platform that can slide relatively 11,12, makes support 1 to move freely on two orthogonal directions simultaneously.
Specifically, prestressing force machine drawing A directly is supported on the upper strata pulley platform 11 of support 1, pulley platform 11 bottoms have two row's pulleys 13 (pulley of opposite side is because view relation demonstration in Fig. 1), this two rows pulley 13 is arranged on the horizontal rail 21 of lower floor's sliding platform 12, thereby support 1 can move along moving of the horizontal rail 21 of sliding platform 12 along with upper strata pulley platform 11, makes it to move forward and backward along the axis direction of prestressed concrete pile punching block 3.
Be arranged on the front end of prestressing force machine drawing A according to the automatic winding device 4 of the nut that is used for the prestressing force machine drawing of a specific embodiment of the present utility model, cooperate reinforcing bar to concrete pile to carry out screwing automatically after the stretch-draw during work with prestressed concrete pile punching block 3, as shown in the figure.
Fig. 2 shows is decomposition diagram according to the automatic winding device of nut of a specific embodiment of the present utility model, the automatic winding device 4 of this nut comprises a hexagonal locking nut 41, but these hexagonal locking nut 41 helical rotation be arranged on the thread 5 (referring to Fig. 1) of described stretch-draw machine.As shown in Figure 1, thread 5 one ends are fixedlyed connected with stretch-draw plate 60, and stretch-draw plate 60 further interconnects with the reinforcing cage (not shown) that needs stretch-draw.
What Fig. 3 showed is the sectional view of the automatic winding device of nut shown in Figure 2, as shown in Figure 3, the other end of thread 5 is threaded with a butterfly nut 52, butterfly nut 52 is stuck with the coupling head 53 of pull bar 54 ends of stretch-draw machine, thereby can carry out prestressed stretch-draw by the hydraulic operation drive pull bar 54 of stretch-draw machine and the 5 pairs of reinforcing cages of thread that are attached thereto.
Refer again to Fig. 2, the automatic winding device 4 of nut also comprises an interior Hexagonal jacket 42, and Hexagonal jacket 42 can be enclosed within on the hexagonal locking nut 41 in this.Hexagonal locking nut 41 move freely before and after can be in the hexagonal through hole 421 of interior Hexagonal jacket 42, but the two can not relatively rotate, and the rotation by interior Hexagonal jacket 42 can drive hexagonal locking nut 41 and move forward and backward spirally along spiral pull bar 5.
Referring to Fig. 3, one by movable sprocket 45 setting be positioned at former and later two bearings 44,44 ' between, and be bolted to connection together with interior Hexagonal jacket 42.Hexagonal jacket 42 and being supported in the bearing support 43 by movable sprocket 45 of fixedlying connected with it had an end cap 61 in fore bearing 44 arranged outside in former and later two bearing 44,44 ' clampings.
A drive sprocket 46 is supported on bearing support 43 outer surfaces.Drive sprocket shown in the figure 46 and be the double rows of teeth sprocket wheel by movable sprocket 45, drive sprocket 46 connects by movable sprocket 45 by two chains 49.An oil motor 48 that drives described drive sprocket 46 rotations is supported on bearing support 43 outer surfaces, as shown in Figure 3.
Two toothrows of above-mentioned double rows of teeth sprocket wheel 45,46 all are identical, and have an angle that staggers of eliminating drive gap between the tooth of position correspondence.It is more accurate when making transmission of power so being provided with, and has eliminated the inter-lobe clearance in the chain drive, as shown in Figure 5.
Certainly, it will be appreciated by those skilled in the art that common chain gear transmission also can reach utility model purpose of the present utility model, just precision can relative mistake some.
In addition, in another specific embodiment of the present utility model, the automatic winding device 4 of nut further comprises an encoder (not shown) that is connected on oil motor 48 output shafts, a programmable logic controller (not shown), a displacement transducer (not shown) that is used to survey the pull bar displacement, described encoder links to each other with described programmable logic controller by holding wire with described displacement transducer.
Describe the course of work of the present utility model with reference to the accompanying drawings in detail.
At first adjust the position of stretch-draw machine support 1 according to the position of prestressed concrete pile punching block 3; The thread 5 and the pull bar 54 of stretch-draw machine are stuck by butterfly nut 52 and coupling head 53; Adjust pull bar 54, the bearing support 43 and the end face of prestressed concrete pile punching block 3 are leant; Adjust hexagonal locking nut 41 afterwards, make it equally to lean with the end face of prestressed concrete pile punching block 3, so far, the preparation before the stretch-draw finishes.
Afterwards, the pull bar 54 of stretch-draw machine begins stretch-draw under hydraulic action, because bearing support 43 leans with the end face of prestressed concrete pile punching block 3, all punching block 3 maintenances are motionless relatively for the parts of whole bearing support 43 and upper support thereof, and thread 5 can move to Fig. 3 left direction under the effect of pull bar 54, hexagonal locking nut 41 on the thread 5 also can be along with the mobile of pull bar 5 be moved to the left, thereby is separated from punching block 3 one segment distances.Because hexagonal locking nut 41 can move freely front and back in the hexagonal through hole 421 of interior Hexagonal jacket 42, therefore, thread 5 drives hexagonal locking nuts 41 and moves not internally to Fig. 3 left side that Hexagonal jacket 42 impacts, equally, interior Hexagonal jacket 42 can not hinder hexagonal locking nut 41 moving to Fig. 3 left side yet.
Simultaneously, displacement transducer passes to programmable logic controller with the displacement of the pull bar 54 that detects, when the displacement of surveying reaches setting value, programmable logic controller is according to the position signalling of the encoder on oil motor 48 output shafts, through calculating, export a control signal and give encoder, make oil motor 48 work, drive drive sprocket 46 successively, chain 49, by movable sprocket 45, Hexagonal jacket 42, hexagonal locking nut 41 rotates, hexagonal locking nut 41 is moved till the end face of itself and prestressed concrete pile punching block 3 leans to Fig. 3 right direction, thereby finish nut check action.
By that analogy, can continue the process of stretch-draw next time and locking.
By foregoing description as seen, because the automatic winding device of nut of the present utility model is supported on the stretch-draw machine by bearing support 43 on the whole, in stretching process, bearing support 43 is to keep motionless with respect to punching block 3, therefore, also punching block 3 maintenances are motionless relatively for the automatic winding device 4 of whole nut, need not to consider the displacement of the automatic winding device of nut self, thereby the parameter that need adjust seldom, and control is simple.
The automatic winding device of nut of the present utility model can carry out automatic locking nut in the prestressed stretch-draw process to reinforcing bar at the stretch-draw machine, has avoided manual locking nut efficient low, and labour intensity is big, dangerous big defective.
The above only is the schematic specific embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, equivalent variations, the modification of being done under the prerequisite that does not break away from design of the present utility model and principle and combining all should belong to the scope of the utility model protection.
Claims (6)
1. automatic winding device of nut that is used for the prestressing force machine drawing, the automatic winding device of described nut comprises a hexagonal locking nut, but be arranged on the thread of described stretch-draw machine to this hexagonal locking nut helical rotation, it is characterized in that, the automatic winding device of described nut also comprises:
An interior Hexagonal jacket, Hexagonal jacket is enclosed within on the described hexagonal locking nut and by rotating the described hexagonal locking nut of drive and moves forward and backward along described thread spirally in this;
Axis around described thread is supported on the tubular bearing support on the described stretch-draw machine, be provided with in this bearing support support described in Hexagonal jacket around the bearing of the rotational of described thread;
One by movable sprocket, its with described in Hexagonal jacket fixedly connected;
A drive sprocket, it is supported on described bearing support outer surface;
An at least one open slot that passes on the described bearing support connects described by the chain of movable sprocket and described drive sprocket;
One drives the oil motor that described drive sprocket rotates, and this oil motor is supported on described bearing support outer surface.
2. the automatic winding device of nut that is used for the prestressing force machine drawing according to claim 1, it is characterized in that, the automatic winding device of described nut further comprises an encoder that is connected on the described oil motor output shaft, a programmable logic controller, a displacement transducer that is used to survey described pull bar displacement, described encoder links to each other with described programmable logic controller by holding wire with described displacement transducer.
3. the automatic winding device of nut that is used for the prestressing force machine drawing according to claim 1 is characterized in that, described interior Hexagonal jacket passes through former and later two bearings in described bearing support.
4. the automatic winding device of nut that is used for the prestressing force machine drawing according to claim 3 is characterized in that, described by the movable sprocket setting between described former and later two bearings.
5. the automatic winding device of nut that is used for the prestressing force machine drawing according to claim 1 is characterized in that, described drive sprocket and describedly be the double rows of teeth sprocket wheel by movable sprocket, and described drive sprocket connects described by movable sprocket by two chains.
6. the automatic winding device of nut that is used for the prestressing force machine drawing according to claim 5 is characterized in that two toothrows of described double rows of teeth sprocket wheel are identical, and has an angle that staggers of eliminating drive gap between the tooth of position correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020292939 CN201794310U (en) | 2010-08-16 | 2010-08-16 | Automatic nut screwing device for prestress tensioning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020292939 CN201794310U (en) | 2010-08-16 | 2010-08-16 | Automatic nut screwing device for prestress tensioning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201794310U true CN201794310U (en) | 2011-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020292939 Expired - Fee Related CN201794310U (en) | 2010-08-16 | 2010-08-16 | Automatic nut screwing device for prestress tensioning machine |
Country Status (1)
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|---|---|
| CN (1) | CN201794310U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436587A (en) * | 2016-08-22 | 2017-02-22 | 江西赣粤高速公路股份有限公司 | Chain link type automatic synchronous tensioning system and method for prestressed wire ropes |
| CN106949121A (en) * | 2016-12-27 | 2017-07-14 | 山西高行液压股份有限公司 | Hydraulic motor location locking mechanism |
| CN110700596A (en) * | 2019-10-31 | 2020-01-17 | 广西路建工程集团有限公司 | Finish-rolled deformed steel bar tensioning anchor device and construction method thereof |
| CN110877322A (en) * | 2019-11-04 | 2020-03-13 | 北京城建设计发展集团股份有限公司 | Automatic screwing device for prestressed reinforced nut matched with hollow jack |
| CN112343348A (en) * | 2020-10-27 | 2021-02-09 | 李绍清 | Angle connecting device for reinforcing steel bars |
| CN117569445A (en) * | 2024-01-15 | 2024-02-20 | 北京市建筑工程研究院有限责任公司 | Super-long seamless slow-bonding prestressed concrete structure and construction method |
-
2010
- 2010-08-16 CN CN 201020292939 patent/CN201794310U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436587A (en) * | 2016-08-22 | 2017-02-22 | 江西赣粤高速公路股份有限公司 | Chain link type automatic synchronous tensioning system and method for prestressed wire ropes |
| CN106436587B (en) * | 2016-08-22 | 2019-03-05 | 江西赣粤高速公路股份有限公司 | Loop chain type prestress rope automatic synchronization tensioning system and method |
| CN106949121A (en) * | 2016-12-27 | 2017-07-14 | 山西高行液压股份有限公司 | Hydraulic motor location locking mechanism |
| CN110700596A (en) * | 2019-10-31 | 2020-01-17 | 广西路建工程集团有限公司 | Finish-rolled deformed steel bar tensioning anchor device and construction method thereof |
| CN110877322A (en) * | 2019-11-04 | 2020-03-13 | 北京城建设计发展集团股份有限公司 | Automatic screwing device for prestressed reinforced nut matched with hollow jack |
| CN110877322B (en) * | 2019-11-04 | 2020-11-24 | 北京城建设计发展集团股份有限公司 | Automatic screwing device for prestressed reinforced nut matched with hollow jack |
| CN112343348A (en) * | 2020-10-27 | 2021-02-09 | 李绍清 | Angle connecting device for reinforcing steel bars |
| CN112343348B (en) * | 2020-10-27 | 2021-11-30 | 雷磊 | Angle connecting device for reinforcing steel bars |
| CN117569445A (en) * | 2024-01-15 | 2024-02-20 | 北京市建筑工程研究院有限责任公司 | Super-long seamless slow-bonding prestressed concrete structure and construction method |
| CN117569445B (en) * | 2024-01-15 | 2024-03-29 | 北京市建筑工程研究院有限责任公司 | Super-long seamless slow-bonding prestressed concrete structure and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20180816 |