CN116733171B - Reinforcing steel bar anchoring device and reinforcing steel bar tensioning method using same - Google Patents
Reinforcing steel bar anchoring device and reinforcing steel bar tensioning method using same Download PDFInfo
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- CN116733171B CN116733171B CN202310993910.3A CN202310993910A CN116733171B CN 116733171 B CN116733171 B CN 116733171B CN 202310993910 A CN202310993910 A CN 202310993910A CN 116733171 B CN116733171 B CN 116733171B
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- steel bar
- tensioning
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- 238000004873 anchoring Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910001294 Reinforcing steel Inorganic materials 0.000 title claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 132
- 239000010959 steel Substances 0.000 claims abstract description 132
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 description 18
- 238000010586 diagram Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
- E04C5/125—Anchoring devices the tensile members are profiled to ensure the anchorage, e.g. when provided with screw-thread, bulges, corrugations
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- 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
Abstract
The application relates to a steel bar anchoring device and a steel bar tensioning method using the same, and relates to the field of steel bar tensioning devices, wherein the steel bar anchoring device comprises an annular positioning disc and a clamping disc, a plurality of plug holes and fixing holes communicated with the plug holes are formed in the end faces of the positioning disc and the clamping disc, and the aperture of the plug holes is larger than the diameter of one thick end of a steel bar pier; the distance between the axis of the plug hole on the positioning disk and the axis of the positioning disk is d1, the distance between the axis of the plug hole on the clamping disk and the axis of the clamping disk is d1, the plug holes and the fixing holes are distributed along the circumferential direction of the positioning disk, and the arrangement directions of the plug holes and the fixing holes on the positioning disk are opposite to the arrangement directions of the plug holes and the fixing holes on the clamping disk; the clamping disc is also fixedly connected with a plug rod which is arranged corresponding to the plug hole on the positioning disc. The application has the effect of improving the tensioning efficiency of the steel bars.
Description
Technical Field
The application relates to the field of devices for tensioning steel bars, in particular to a steel bar anchoring device and a steel bar tensioning method using the same.
Background
The steel reinforcement framework is usually arranged in the concrete member, and the prestress tensioning is to tension the steel reinforcement in the steel reinforcement framework, so that the prestress-applied member bears stress in advance, and the member is deformed to a certain extent to cope with the load born by the structure.
When stretching the steel bars, an anchoring disc is required to be used, a plurality of through holes are formed in the anchoring disc, a steel bar is penetrated into each through hole, then a clamping piece is sleeved on each steel bar, each clamping piece is knocked into the through hole by using a steel pipe, so that the steel bars are fixed with the anchoring disc, finally, the anchoring disc is clamped by using a stretching machine, and the anchoring disc is driven to move in a direction away from a component, so that the steel bars are stretched.
When the steel bars are fixed, operators need to penetrate each steel bar into the through holes respectively and insert clamping pieces into each through hole respectively, the steps are more when the steel bars are fixed, the time consumption is long, and the tensioning treatment efficiency of the steel bars is low.
Disclosure of Invention
In order to improve tensioning efficiency of a steel bar, the application provides a steel bar anchoring device and a steel bar tensioning method using the same.
In a first aspect, the present application provides a steel bar anchoring device, which adopts the following technical scheme:
the steel bar anchoring device comprises an annular positioning disc and a clamping disc, wherein a plurality of plug holes and fixing holes communicated with the plug holes are formed in the end faces of the positioning disc and the clamping disc, and the aperture of each plug hole is larger than the diameter of one thick end of a steel bar pier;
the distance between the axis of the plug hole on the positioning disk and the axis of the positioning disk is d1, the distance between the axis of the plug hole on the clamping disk and the axis of the clamping disk is d1, the plug holes and the fixing holes are distributed along the circumferential direction of the positioning disk, and the arrangement directions of the plug holes and the fixing holes on the positioning disk are opposite to the arrangement directions of the plug holes and the fixing holes on the clamping disk;
the clamping disc is also fixedly connected with a plug rod which is arranged corresponding to the plug hole on the positioning disc.
Through adopting above-mentioned technical scheme, when need carry out stretch-draw to the reinforcing bar, at first, carry out the mound thick formation end cap to the tip of reinforcing bar, the diameter of end cap is greater than the diameter of reinforcing bar rest, then rotate positioning disk and joint dish to opposite direction, make the spliced eye of positioning disk and joint dish two align, and peg graft the reinforcing bar to in the spliced eye, make both peg graft on the reinforcing bar of positioning disk and joint dish, then rotate joint dish and positioning disk, make the reinforcing bar slide into the fixed orifices, promote the joint dish to the direction that is close to the positioning disk, make the spliced pole insert in the spliced groove, the spliced pole is spacing to the reinforcing bar, make operating personnel can more convenient fix the reinforcing bar, the stretch-draw treatment efficiency of reinforcing bar has been improved.
Fixing the working end of the tensioning machine, the positioning disc and the clamping disc, starting the tensioning machine, pulling the positioning disc and the clamping disc to move in a direction away from the die, and moving the plug for pulling the steel bar to move by the clamping disc so as to tension the steel bar; when stretching is completed, the positions of the clamping disc and the positioning disc are kept, after a period of time, the connection between the stretching machine and the positioning disc and the connection between the stretching machine and the clamping disc are released, the stretching machine and the positioning disc and the clamping disc are separated, then the positioning disc and the clamping disc are rotated, the positioning disc and the clamping disc are separated from the steel bars, and finally the steel bars are cut.
Optionally, a columnar guiding part is fixedly connected to one end face of the positioning disc, the guiding part and the positioning disc are coaxial, the clamping disc is slidably sleeved on the guiding part, and the inserting holes and the fixing holes on the clamping disc and the positioning disc are uniformly distributed around the guiding part.
Through adopting above-mentioned technical scheme, the joint dish slides and pegs graft on the guiding part, and the guiding part is directed to the joint dish, and operating personnel can be better aligns the grafting hole of joint dish and positioning disk two.
Optionally, a matching hole penetrating through the positioning disc is formed in the positioning disc, the matching hole is matched with a tensioning head of the tensioning machine, and the tensioning machine with the tensioning head of an asymmetric plate is selected;
the guide part is a hollow columnar pipe body, and the inner diameter of the guide part is larger than the radius of the circumcircle of the tensioning head of the tensioning machine.
By adopting the technical scheme, after the positioning disc is matched with the clamping disc, the sheet at the working end of the tensioning machine stretches into the guide part, stretches out of the positioning disc through the matching hole, and then rotates the sheet to enable the sheet to be in contact with the end surface of the positioning disc far away from the guide part; and then starting a tensioning machine, wherein the tensioning machine drives the plate to move in a direction away from the die, and the plate moves to drive the positioning disc, the clamping disc and the plugs of the steel bars to move in a direction away from the die, so that the steel bars are tensioned.
Optionally, the outer side wall of the guiding part is provided with threads, and the guiding part is connected with a nut in a threaded manner;
the anchoring device further comprises a fixing disc, a through hole corresponding to the guide part is formed in the fixing disc, one end face of the fixing disc is sunken towards the direction close to the other end face to form a groove, and the inscribed circle radius of the groove is larger than the circumscribed circle radius of the clamping disc and the positioning disc.
After tensioning is completed, the fixing disc is sleeved on the guide part, the end face of the fixing disc is contacted with the corresponding end face of the die, then the nut is rotated to enable the nut to be in butt joint with the fixing disc, the fixing disc limits the nut, the guide part, the positioning disc, the clamping disc and the plugs of the steel bars, so that the steel bars are kept in a tensioned state, and finally an operator rotates and moves the plate to enable the plate to be in un-fit with the positioning disc; at the moment, an operator can stretch another reinforcement cage by using the stretch-draw machine, so that the utilization rate of the stretch-draw machine is improved.
Optionally, the clamping disc is close to the cutting groove that corresponds with the fixed orifices on the terminal surface of locating disc, and the cutting groove runs through the inside wall and the lateral wall of clamping disc.
Through adopting above-mentioned technical scheme, after the stretch-draw is accomplished, operating personnel cuts off the reinforcing bar through cutting the groove, and operating personnel can take off positioning disk and joint dish this moment, then take out the reinforcing bar that will cut off from positioning disk and joint dish, make operating personnel can more convenient take off positioning disk and joint dish.
Optionally, the anchoring device further comprises a base plate, the base plate is sleeved on the guide part, the base plate is located at one side of the clamping disc away from the positioning disc, and the base plate is also provided with a plug hole and a fixing hole corresponding to the plug hole.
By adopting the technical scheme, when the steel bar is stretched, the base plate blocks the clamping disc from being in direct contact with the plug of the steel bar, so that the abrasion speed of the clamping disc is delayed.
Optionally, a demoulding groove is formed in the end face, far away from the guide portion, of the positioning disc, and the side groove wall of the demoulding groove gradually inclines outwards from one side, close to the guide portion, to one side, far away from the guide portion.
By adopting the technical scheme, the positioning disc can be separated from the concrete member in the die more smoothly.
Optionally, the wall thickness of one end of the guiding part far away from the positioning disc is larger than the wall thickness of one end of the guiding part near to the positioning disc.
By adopting the technical scheme, the situation that the guide part is bent is reduced.
In a second aspect, the present application provides a method for stretching a steel bar, which is operated by using the above-mentioned steel bar anchoring device, and includes the following steps:
s1, upsetting one end of a reinforcing steel bar protruding out of a die to form a plug;
s2, rotating the clamping disc and the positioning disc, and sleeving the clamping disc, the positioning disc and the backing plate on the steel bars;
s3, rotating the positioning disc and the clamping disc in opposite directions, and rotating the base plate to enable the reinforcing steel bars to enter the fixing holes from the inserting holes, moving the clamping disc and inserting the inserting rods into the corresponding inserting holes;
s4, sleeving the working end of the tensioning machine on the positioning disc and the clamping disc, and clamping the positioning disc and the clamping disc;
s5, starting a tensioning machine to carry out tensioning;
s6, after tensioning is completed, enabling the tensioning machine to keep the positions of the positioning disc and the clamping disc;
and S7, taking down the tensioning machine, cutting the plugs of the reinforcing steel bars, and taking out the broken reinforcing steel bars from the reinforcing steel bar anchoring device.
In a third aspect, the present application provides a method of tensioning a steel bar, operated with a steel bar anchoring device as described in any one of the preceding claims, comprising the steps of:
s1, upsetting one end of a reinforcing steel bar protruding out of a die to form a plug;
s2, rotating the clamping disc and the positioning disc and sleeving the clamping disc and the positioning disc on the steel bar;
s3, rotating the positioning disc and the clamping disc in opposite directions, and rotating the base plate to enable the reinforcing steel bars to enter the fixing holes from the inserting holes, and moving the clamping disc to enable the inserting rods to be inserted into the corresponding inserting holes;
s4, inserting a plate of the working end of the tensioning machine into the guide part from one end far away from the positioning disc, penetrating out of the matching hole, and rotating the plate to enable the plate to be in contact with the end face, far away from the duct piece, of the positioning disc;
s5, starting a tensioning machine to carry out tensioning;
s6, inserting the fixed disc onto the guide part after tensioning is completed, enabling the fixed disc to contact with the end face, close to the fixed disc and the die, of the fixed disc, screwing the nut onto the guide part, enabling the nut to contact with the end face, far away from the die, of the fixed disc, and adjusting the tensioning machine to enable the plate piece to be separated from the guide part;
s7, rotating the nut, and taking down the fixed disc from the guide part;
s8, cutting the steel bars through the cutting grooves, and taking out the broken steel bars from the steel bar anchoring device.
In summary, the present application includes at least one of the following beneficial technical effects:
the tensioning treatment efficiency of the steel bars is improved by arranging the positioning disc, the fixing hole, the matching hole, the clamping disc and the inserting rod;
by the first method, operation steps during tensioning the steel bar are reduced, and tensioning efficiency of the steel bar is improved;
by the second method, the use time of the stretching machine is reduced, and the utilization rate of the stretching machine is improved.
Drawings
Fig. 1 is a schematic view showing the overall structure of a reinforcing bar anchoring device according to an embodiment of the present application.
Fig. 2 is a state diagram showing tensioning of the reinforcing bar anchoring device according to the embodiment of the present application.
FIG. 3 is a schematic diagram showing the overall structure of a puck according to an embodiment of the present application.
FIG. 4 is a schematic diagram showing the overall structure of a chuck according to an embodiment of the present application.
Fig. 5 is a state diagram showing the completion of tensioning of the reinforcing bar anchoring device according to the embodiment of the present application.
Reference numerals illustrate: 1. a mold; 2. reinforcing steel bars; 21. a plug; 3. a stretching machine; 31. a plate; 4. a positioning plate; 41. a demolding groove; 42. a mating hole; 43. a guide part; 5. a plug hole; 6. a fixing hole; 7. a clamping disc; 71. inserting a connecting rod; 72. cutting a groove; 8. a backing plate; 9. a fixed plate; 91. a groove; 92. and (3) a nut.
Detailed Description
The application is described in further detail below with reference to fig. 1-5.
The embodiment of the application discloses a steel bar anchoring device. Referring to fig. 1, 2 and 3, the steel bar anchoring device comprises a positioning disc 4, wherein a plurality of inserting holes 5 are formed in the positioning disc 4, the aperture of each inserting hole 5 is larger than the diameter of the upsetting end of a steel bar 2, the inserting holes 5 are uniformly distributed along the circumferential direction of the positioning disc 4, the inserting holes 5 are positioned at the edge of the positioning disc 4, and the distance between the axis of each inserting hole 5 and the axis of the positioning disc 4 is d1; the locating plate 4 is also provided with a fixing hole 6 which is arranged corresponding to the inserting hole 5, the fixing hole 6 is positioned on one side of the inserting hole 5, the fixing hole 6 is communicated with the inserting hole 5, and the aperture of the fixing hole 6 is connected with one end of the diameter of the reinforcing steel bar 2.
In this embodiment, the number of the fixing holes 6 is eight, and the plugging holes 5 and the fixing holes 6 are arranged along the anticlockwise direction; in other embodiments, the number of the fixing holes 6 may be set according to actual use conditions, and the fixing holes 6 and the plugging holes 5 may also be distributed in a clockwise direction.
One end face of the positioning disk 4 is also fixedly connected with a guide part 43, in the embodiment, the guide part 43 is a cylindrical guide pipe, the guide pipe and the positioning disk 4 are coaxially arranged, and a plurality of inserting holes 5 and fixing holes 6 are distributed around the guide pipe; in other embodiments, the guiding portion 43 may be a cylindrical tube with a rectangular internal section, and the radius of the inscribed circle of the inner sidewall of the tube is larger than the radius of the circumscribed circle of the plate 31 at the working end of the tensioning machine 3.
The section of the plate 31 at the working end of the stretching machine 3 is rectangular, the inner diameter of the guide pipe is larger than the diameter of the circumcircle of the plate 31 at the working end of the stretching machine 3, and the wall thickness of one end of the guide pipe close to the positioning disc 4 is larger than the wall thickness of one end of the guide pipe far away from the positioning disc 4; in other embodiments, the wall thickness of the guide tube may also be gradually increased from a direction away from the puck 4 toward a direction closer to the puck 4.
The end surface of the positioning disk 4 is provided with a matching hole 42 matched with the plate 31 of the stretching machine 3, the matching hole 42 penetrates through the positioning disk 4, and the matching hole 42 is communicated with the guide pipe; the end face of the positioning disk 4 far away from the guide pipe is provided with a demoulding groove 41, the side groove wall of the demoulding groove 41 is inclined, and the side groove wall of the demoulding groove 41 gradually inclines outwards from the groove bottom to the groove opening.
Referring to fig. 4, the steel bar anchoring device further comprises a clamping disc 7, the guide tube penetrates through the clamping disc 7, the clamping disc 7 is slidably inserted on the guide tube, and the clamping disc 7 and the guide tube are coaxially arranged; the clamping disc 7 is also provided with inserting holes 5 and fixing holes 6, the number of the inserting holes 5 on the clamping disc 7 corresponds to the number of the inserting holes 5 on the positioning disc 4, and the distance between the axis of the inserting holes 5 on the clamping disc 7 and the axis of the clamping disc 7 is d1; the diameter of the clamping disk 7 in this embodiment is equal to the diameter of the positioning disk 4.
The plugging rod 71 which is arranged corresponding to the plugging hole 5 is fixedly connected to one end face of the clamping disc 7, and the arrangement direction of the plugging hole 5, the fixing hole 6 and the plugging rod 71 on the clamping disc 7 is opposite to the arrangement direction of the plugging hole 5 and the fixing hole 6 on the positioning disc 4; in this embodiment, the plugging hole 5, the fixing hole 6 and the plugging rod 71 on the clamping disc 7 are arranged in the clockwise direction.
Referring to fig. 2, a backing plate 8 is slidably inserted on the guide tube, the backing plate 8 is located on one side of the clamping disc 7 away from the positioning disc 4, a plurality of insertion holes 5 and fixing holes 6 corresponding to the insertion holes 5 are formed in the backing plate 8, the insertion holes 5 on the backing plate 8 correspond to the insertion holes 5 on the positioning disc 4, and the fixing holes 6 on the backing plate 8 also correspond to the fixing holes 6 on the positioning disc 4; in this embodiment, the backing plate 8 is a circular plate, and the backing plate 8 is coaxial with the guide tube, and the diameter of the backing plate 8 is consistent with the diameter of the positioning plate 4.
Referring to fig. 2, when the steel bar 2 needs to be stretched, firstly upsetting one end of the steel bar 2 protruding from the die 1 to increase the diameter of the end of the steel bar 2 to form a plug 21, then rotating the positioning disc 4, the clamping disc 7 and the backing plate 8 to align the inserting holes 5 on the positioning disc 4, the clamping disc 7 and the backing plate 8, directing the positioning disc 4 towards the direction approaching the die 1, delivering the positioning disc 4, the clamping disc 7 and the backing plate 8, and enabling the plug 21 to pass through the positioning disc 4, the clamping disc 7 and the backing plate 8; when the puck 4 is inserted into the mold 1, the outer sidewall of the puck 4 contacts the inner sidewall of the mold 1, stopping delivery of the puck 4.
The positioning plate 4 and the clamping plate 7 are rotated in opposite directions, so that the steel bars 2 slide into the fixing holes 6, at the moment, the inserting connection rods 71 are aligned with the inserting holes 5, the clamping plate 7 is pushed in the direction close to the positioning plate 4, the inserting connection rods 71 are inserted into the inserting holes 5, the clamping plate 7 is attached to the end faces close to the positioning plate 4, at the moment, the inserting connection rods 71 limit the steel bars 2, and the steel bars 2 are reduced from sliding into the inserting holes 5. The backing plate 8 is rotated to enable the steel bars 2 to be positioned in the fixing holes 6; the steps required for fixing the steel bar 2 are reduced, and the processing efficiency of tensioning the steel bar 2 is improved.
Because the positioning disc 4 is inserted into the die 1, an operator can release the positioning disc 4 at the moment and stretch the plate 31 at the working end of the tensioning machine 3 into the guide pipe, so that the operation of the operator is facilitated; the plate 31 is aligned with the mating hole 42 and pushing of the plate 31 is continued until the plate 31 moves to the side of the puck 4 away from the guide tube, at which time the plate 31 is pulled in a direction toward the guide tube and turned until the plate 31 contacts the end face of the puck 4 away from the guide tube. The stretching machine 3 is started, and the stretching machine 3 works to drive the plate 31 to move away from the die 1.
The tensioning machine 3 works to drive the plate 31, the positioning disc 4, the clamping disc 7 and the backing plate 8 to move in a direction away from the die 1, and meanwhile, the plugs 21 of the steel bars 2 are contacted with the backing plate 8, so that the steel bars 2 are tensioned; when stretching the steel bar 2, the base plate 8 blocks the plugs 21 of the steel bar 2 from directly contacting with the clamping discs 7, and the abrasion speed of the clamping discs 7 is delayed.
Referring to fig. 1 and 5, when tensioning is completed, in order to improve the utilization rate of the tensioning machine 3, the anchoring device further comprises a fixed disc 9 slidably inserted on the guide pipe, one end of the fixed disc 9, which is close to the clamping disc 7, is provided with a groove 91, the groove 91 is circular, and the diameter of the groove 91 is not smaller than the diameters of the positioning disc 4, the clamping disc 7 and the backing plate 8; the outer side wall of the guide tube is provided with threads, and the guide tube is connected with a nut 92 in a threaded manner.
After tensioning is completed, an operator sleeves the fixing disc 9 on the guide pipe, the end face of the fixing disc 9 is in contact with the end face of the die 1, then the nut 92 is screwed, the end face corresponding to the fixing disc 9 is abutted tightly by the nut 92, at the moment, the fixing disc 9, the guide pipe and the nut 92 are matched, the positions of the positioning disc 4, the clamping disc 7 and the backing plate 8 are fixed, the plug 21 of the reinforcing steel bar 2 is limited, and the reinforcing steel bar 2 is kept in a tensioned state. Then, an operator can take down the plate 31 from the positioning disc 4 and the guide pipe, and stretch another steel bar 2 cage by using the stretching machine 3, so that the utilization rate of the stretching machine 3 is improved.
After the tensioning is completed, the positioning plate 4, the clamping plate 7 and the backing plate 8 need to be taken down from the steel bar 2, at this time, an operator firstly rotates the nut 92 to take down the fixing plate 9 from the guide pipe, then the positioning plate 4, the clamping plate 7 and the backing plate 4 can be rotated to separate the positioning plate 4 from the steel bar 2, and finally the plug 21 of the steel bar 2 is cut.
Referring to fig. 2 and 4, in order to enable an operator to more conveniently remove the reinforcing bar anchoring device from the reinforcing bar 2, the side wall of the clamping disc 7 is provided with cutting grooves 72 at positions corresponding to the fixing holes 6, the cutting grooves 72 penetrate through both side walls of the clamping disc 7, the reinforcing bar 2 in the fixing holes 6 can be exposed through the cutting grooves 72, and the operator can cut the reinforcing bar 2 through the cutting grooves 72; finally, the broken steel bar 2 is taken out of the steel bar anchoring device, so that an operator can more conveniently take down the steel bar anchoring device.
In other embodiments, other types of tensioning equipment can be selected, when the tensioning equipment of other types is used, the working ends of the tensioning machine 3 are sleeved on the positioning disc 4 and the clamping disc 7, the positioning disc 4 and the clamping disc 7 are clamped, then the tensioning machine 3 is started, and the tensioning machine 3 drives the positioning disc 4 and the clamping disc 7 to move, so that the steel bars 2 are tensioned; when the reinforcing steel bar 2 is fixed, the positions of the positioning plate 4 and the clamping plate 7 need to be maintained by using the stretching machine 3.
The implementation principle of the steel bar anchoring device provided by the embodiment of the application is as follows: when the steel bar 2 needs to be stretched, upsetting the end part of the steel bar 2 to form a plug 21, adjusting the positioning disc 4, the clamping disc 7 and the base plate 8, splicing the positioning disc 4, the clamping disc 7 and the base plate 8 on the steel bar 2, rotating the positioning disc 4, the clamping disc 7 and the base plate 8 to enable the steel bar 2 to enter the fixing hole 6, and splicing the splicing rod 71 into the splicing hole 5; the sheet 31 of the stretching machine 3 is matched with the positioning disc 4, the stretching machine 3 is started to stretch the steel bars 2, then the fixing disc 9 is sleeved on the guide pipe, and the nut 92 is rotated to fix the fixing disc 9. The sheet 31 of the stretching machine 3 is separated from the bar anchoring device, the bar 2 is cut by the cutting groove 72, and finally the broken bar 2 is removed from the bar anchoring device.
The embodiment of the application also discloses a steel bar tensioning method, which uses the steel bar anchoring device and comprises the following steps:
s1, upsetting one end of a reinforcing steel bar 2 protruding out of a die 1 to form a plug 21;
upsetting the end of the steel bar 2 protruding out of the die 1 by using an upsetter to ensure that the diameter of the end part of the steel bar 2 is larger than the diameters of the rest parts of the steel bar 2, and forming a plug 21 at the end part of the steel bar 2;
s2, rotating the clamping disc 7 and the positioning disc 4, and sleeving the clamping disc 7, the positioning disc 4 and the backing plate 8 on the steel bar 2;
rotating the clamping disc 7 and the positioning disc 4 to align the inserting holes 5 of the clamping disc 7 and the positioning disc 4, then, pushing the positioning disc 4 to face the die 1, and inserting the clamping disc 7 and the positioning disc 4 to be inserted and connected onto the steel bars 2 until the plugs 21 are positioned on one side of the clamping disc 7 away from the positioning disc 4;
s3, rotating the positioning disc 4 and the clamping disc 7 in opposite directions, and rotating the base plate 8 to enable the steel bars 2 to enter the fixed holes 6 from the inserting holes 5, moving the clamping disc 7 and inserting the inserting rods 71 into the corresponding inserting holes 5;
rotating the positioning disk 4 and the clamping disk 7 in opposite directions to enable the steel bars 2 to enter the fixing holes 6 from the inserting holes 5, aligning the inserting rods 71 with the inserting holes 5 on the positioning disk 4, pushing the clamping disk 7 to insert the inserting rods 71 into the inserting holes 5 on the positioning disk 4, at the moment, matching the positioning disk 4 with the clamping disk 7, installing the anchoring device, matching the inserting rods 71 with the inserting holes 5, limiting and fixing the steel bars 2, and improving the efficiency of fixing the steel bars 2;
s4, sleeving the working end of the tensioning machine 3 on the positioning disc 4 and the clamping disc 7, and clamping the positioning disc 4 and the clamping disc 7;
s5, starting a tensioning machine 3 for tensioning;
s6, after tensioning is completed, the tensioning machine 3 is enabled to keep the positions of the positioning disc 4 and the clamping disc 7;
s7, taking down the tensioning machine 3, cutting the plugs 21 of the steel bars 2, and taking out the broken steel bars 2 from the steel bar anchoring device;
the clamping disc 7 and the fixing disc 9 are conveniently taken out by operators.
The embodiment of the application also discloses a steel bar tensioning method, which uses the steel bar anchoring device and comprises the following steps:
s1, upsetting one end of a reinforcing steel bar 2 protruding out of a die 1 to form a plug 21;
upsetting the end of the steel bar 2 protruding out of the die 1 by using an upsetter to ensure that the diameter of the end part of the steel bar 2 is larger than the diameters of the rest parts of the steel bar 2, and forming a plug 21 at the end part of the steel bar 2;
s2, rotating the clamping disc 7 and the positioning disc 4 and sleeving the clamping disc 7 and the positioning disc on the steel bar 2;
rotating the clamping disc 7 and the positioning disc 4 to align the inserting holes 5 of the clamping disc 7 and the positioning disc 4, then, pushing the positioning disc 4 to face the die 1, and inserting the clamping disc 7 and the positioning disc 4 to be inserted and connected onto the steel bars 2 until the plugs 21 are positioned on one side of the clamping disc 7 away from the positioning disc 4;
s3, rotating the positioning disc 4 and the clamping disc 7 in opposite directions, and rotating the base plate 8 to enable the steel bars 2 to enter the fixed holes 6 from the inserting holes 5, and moving the clamping disc 7 to enable the inserting rods 71 to be inserted into the corresponding inserting holes 5;
rotating the positioning disk 4 and the clamping disk 7 in opposite directions to enable the steel bars 2 to enter the fixing holes 6 from the inserting holes 5, aligning the inserting rods 71 with the inserting holes 5 on the positioning disk 4, pushing the clamping disk 7 to insert the inserting rods 71 into the inserting holes 5 on the positioning disk 4, at the moment, matching the positioning disk 4 with the clamping disk 7, installing the anchoring device, matching the inserting rods 71 with the inserting holes 5, limiting and fixing the steel bars 2, and improving the efficiency of fixing the steel bars 2;
s4, inserting the plate 31 at the working end of the tensioning machine 3 into the guide part 43 from one end far away from the positioning disc 4, penetrating out of the matching hole 42, rotating the plate 31 to enable the plate 31 to be in contact with the end surface, far away from the duct piece, of the positioning disc 4;
s5, starting a tensioning machine 3 for tensioning;
when the tensioning machine 3 works, the plate 31 drives the positioning disc 4 and the clamping disc 7 to move in a direction away from the die 1, and after the plug 21 contacts with the base plate 8, the clamping disc 7 moves to drive the plug 21 of the steel bar 2 to move, so that the steel bar 2 is tensioned;
s6, after tensioning is completed, inserting the fixed disc 9 onto the guide part 43, enabling the end surfaces of the fixed disc 9 and the die 1, which are close to each other, to be in contact, screwing the nut 92 onto the guide part 43, enabling the nut 92 to be in contact with the end surface of the fixed disc 9, which is far away from the die 1, and adjusting the tensioning machine 3 to enable the plate 31 to be separated from the guide part 43;
the fixing disc 9 limits the nuts 92, the guide pipes, the clamping disc 7 and the positioning disc 4, so that the positions of the plugs 21 are fixed, the steel bars 2 are kept in a stretched state, the positions of the clamping disc 7, the positioning disc 4 and the plugs 21 are not required to be fixed by using the stretching machine 3, the steel bars 2 of the next component can be stretched by using the stretching machine 3, and the utilization rate of the stretching machine 3 is improved.
S7, rotating the nut 92 to remove the fixed disc 9 from the guide part 43;
s8, cutting the steel bars 2 through the cutting grooves 72, and taking out the broken steel bars 2 from the steel bar anchoring device;
after cutting the steel bar 2, an operator can more conveniently take down the clamping disc 7 and the positioning disc 4.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (5)
1. A rebar anchoring device, characterized in that: the steel bar splicing device comprises an annular positioning disc (4) and a clamping disc (7), wherein a plurality of splicing holes (5) and fixing holes (6) communicated with the splicing holes (5) are formed in the end faces of the positioning disc (4) and the clamping disc (7), the aperture of the splicing holes (5) is larger than the diameter of the upsetting end of the steel bar (2), and the aperture of the fixing holes (6) is consistent with the diameter of the steel bar (2);
the distance between the axis of the plug hole (5) on the positioning disk (4) and the axis of the positioning disk (4) is d1, the distance between the axis of the plug hole (5) on the clamping disk (7) and the axis of the clamping disk (7) is d1, the plug hole (5) and the fixing hole (6) are distributed along the circumferential direction of the positioning disk (4), and the arrangement directions of the plug hole (5) and the fixing hole (6) on the positioning disk (4) are opposite to the arrangement directions of the plug hole (5) and the fixing hole (6) on the clamping disk (7);
the clamping disc (7) is also fixedly connected with a plug rod (71) which is arranged corresponding to the plug hole (5) on the positioning disc (4);
a columnar guide part (43) is fixedly connected to one end face of the positioning disc (4), the guide part (43) is coaxial with the positioning disc (4), the clamping disc (7) is slidably sleeved on the guide part (43), and the inserting holes (5) and the fixing holes (6) on the clamping disc (7) and the positioning disc (4) are distributed around the guide part (43);
the positioning disc (4) is provided with a matching hole (42) penetrating through the positioning disc (4), the matching hole (42) is matched with a tensioning head of the tensioning machine (3), and the tensioning machine (3) with an asymmetric tensioning head plate (31) is selected;
the guide part (43) is a hollow columnar pipe body, and the inner diameter of the guide part (43) is larger than the radius of a circumcircle of a tensioning head of the tensioning machine (3);
the outer side wall of the guide part (43) is provided with threads, and the guide part (43) is connected with a nut (92) in a threaded manner;
the anchoring device further comprises a fixed disc (9), a through hole corresponding to the guide part (43) is formed in the fixed disc (9), one end face of the fixed disc (9) is recessed towards the direction close to the other end face to form a groove (91), and the inscribed circle radius of the groove (91) is larger than the circumscribed circle radius of the clamping disc (7) and the positioning disc (4);
the anchoring device further comprises a base plate (8), the base plate (8) is sleeved on the guide part (43), the base plate (8) is positioned on one side, far away from the positioning disc (4), of the clamping disc (7), and the base plate (8) is also provided with a plug hole (5) and a fixing hole (6) corresponding to the plug hole (5);
the wall thickness of one end of the guide part (43) far away from the positioning disc (4) is larger than the wall thickness of one end of the guide part (43) near the positioning disc (4).
2. A rebar anchoring device as in claim 1, wherein: cutting grooves (72) corresponding to the fixing holes (6) are formed in the end face, close to the positioning disc (4), of the clamping disc (7), and the cutting grooves (72) penetrate through the inner side wall and the outer side wall of the clamping disc (7).
3. A rebar anchoring device as in claim 1, wherein: the end face, far away from the guide part (43), of the positioning disc (4) is provided with a demolding groove (41), and the side groove wall of the demolding groove (41) gradually inclines outwards from one side, close to the guide part (43), to one side, far away from the guide part (43).
4. A method for stretching steel bars is characterized in that: a method of tensioning a steel bar anchoring device as claimed in any one of claims 1 to 3, comprising the steps of:
s1, upsetting one end of a reinforcing steel bar (2) protruding out of a die (1) to form a plug (21);
s2, rotating the clamping disc (7) and the positioning disc (4), and sleeving the clamping disc (7), the positioning disc (4) and the backing plate (8) on the steel bar (2);
s3, rotating the positioning disc (4) and the clamping disc (7) in opposite directions, and rotating the base plate (8) to enable the steel bars (2) to enter the fixing holes (6) from the inserting holes (5), moving the clamping disc (7) and inserting the inserting rods (71) into the corresponding inserting holes (5);
s4, sleeving the working end of the tensioning machine (3) on the positioning disc (4) and the clamping disc (7), and clamping the positioning disc (4) and the clamping disc (7);
s5, starting a tensioning machine (3) for tensioning;
s6, after tensioning is completed, the tensioning machine (3) keeps the positions of the positioning disc (4) and the clamping disc (7);
and S7, taking down the tensioning machine (3), cutting the plugs (21) of the steel bars (2), and taking out the broken steel bars (2) from the steel bar anchoring device.
5. A method for stretching steel bars is characterized in that: a method of tensioning a steel bar anchoring device as claimed in any one of claims 1 to 3, comprising the steps of:
s1, upsetting one end of a reinforcing steel bar (2) protruding out of a die (1) to form a plug (21);
s2, rotating the clamping disc (7) and the positioning disc (4) and sleeving the clamping disc and the positioning disc on the steel bar (2);
s3, rotating the positioning disc (4) and the clamping disc (7) in opposite directions, and rotating the base plate (8) to enable the reinforcing steel bars (2) to enter the fixing holes (6) from the inserting holes (5), and moving the clamping disc (7) to enable the inserting rods (71) to be inserted into the corresponding inserting holes (5);
s4, inserting a plate (31) at the working end of the tensioning machine (3) into the guide part (43) from one end far away from the positioning disc (4), penetrating out of the matching hole (42), and rotating the plate (31) to enable the plate (31) to be in contact with the end face, far away from the duct piece, of the positioning disc (4);
s5, starting a tensioning machine (3) for tensioning;
s6, inserting the fixed disc (9) onto the guide part (43) after tensioning is completed, enabling the fixed disc (9) to be in contact with the end face, close to the die (1), of the fixed disc, screwing the nut (92) onto the guide part (43), enabling the nut (92) to be in contact with the end face, far away from the die (1), of the fixed disc (9), and adjusting the tensioning machine (3) to enable the sheet (31) to be separated from the guide part (43);
s7, rotating the nut (92) to take off the fixed disc (9) from the guide part (43);
s8, cutting the steel bar (2) through the cutting groove (72), and taking out the broken steel bar (2) from the steel bar anchoring device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310993910.3A CN116733171B (en) | 2023-08-09 | 2023-08-09 | Reinforcing steel bar anchoring device and reinforcing steel bar tensioning method using same |
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| CN202310993910.3A CN116733171B (en) | 2023-08-09 | 2023-08-09 | Reinforcing steel bar anchoring device and reinforcing steel bar tensioning method using same |
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| CN116733171A (en) | 2023-09-12 |
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