CN117733038A - Ribbed steel bar sleeve axial cold extrusion connecting equipment - Google Patents
Ribbed steel bar sleeve axial cold extrusion connecting equipment Download PDFInfo
- Publication number
- CN117733038A CN117733038A CN202410148675.4A CN202410148675A CN117733038A CN 117733038 A CN117733038 A CN 117733038A CN 202410148675 A CN202410148675 A CN 202410148675A CN 117733038 A CN117733038 A CN 117733038A
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- driving cylinder
- cylinder
- steel bar
- ribbed steel
- jaw seat
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 52
- 239000010959 steel Substances 0.000 title claims abstract description 52
- 238000000641 cold extrusion Methods 0.000 title claims abstract description 46
- 230000001603 reducing effect Effects 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 15
- 238000001125 extrusion Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The invention discloses an axial cold extrusion connecting device of a ribbed steel bar sleeve, which comprises: the cylinder body of the driving cylinder is connected with a first jaw seat, one end of the first jaw seat is provided with a reducing sleeve, the outer side of the cylinder body of the driving cylinder is connected with a driving cylinder jacket in a sliding manner, and the driving cylinder jacket synchronously stretches and contracts along with a piston rod of the driving cylinder; the guide cylinder is arranged on one side of the driving cylinder side by side, a piston rod of the guide cylinder is fixedly connected with the other end of the first jaw seat, a guide cylinder jacket is fixedly connected to the cylinder body of the guide cylinder, and the guide cylinder jacket is fixedly connected with the driving cylinder jacket and synchronously moves; the second jaw seat is fixed on the driving cylinder jacket and is positioned above the first jaw seat, and the ribbed steel bar sleeve axial cold extrusion connecting piece is arranged between the first jaw seat and the second jaw seat.
Description
Technical Field
The invention belongs to the technical field of mechanical connection of ribbed steel bars, and particularly relates to axial cold extrusion connection equipment for ribbed steel bar sleeves.
Background
The use of ribbed steel bar sleeve cold extrusion connectors to mechanically connect ribbed steel bars is one of the steel bar connection techniques employed in concrete construction engineering. When the ribbed steel bar sleeve cold extrusion connecting piece is adopted to connect ribbed steel bars, axial cold extrusion or radial cold extrusion is mainly completed through hydraulic pressure, so that the ribbed steel bar sleeve cold extrusion connecting piece generates radial shrinkage, axial extension plastic deformation and connects two ribbed steel bars together. When the ribbed steel bar sleeve is adopted to axially and cold-squeeze the connecting piece to connect the ribbed steel bars, corresponding hydraulic squeezing equipment is needed.
At present, when the existing hydraulic extrusion equipment performs extrusion operation on the ribbed steel bar sleeve axial cold extrusion connecting piece, the existing hydraulic extrusion equipment drives an upper jaw and a lower jaw to move mainly through mutual movement between a cylinder body and a piston rod of an oil cylinder. In the process, the positioning sleeve at the upper jaw is tightly contacted with the end face of the ribbed steel bar sleeve axial cold extrusion connecting piece, and the diameter reducing sleeve in the lower jaw is contacted with the ribbed steel bar sleeve axial cold extrusion connecting piece and moves upwards so as to complete the corresponding diameter reducing action.
However, because the inner diameters of different sections of the inner hole of the reducing sleeve are different, the inner diameter of the opening at one end, which is contacted with the ribbed steel bar sleeve axial cold extrusion connecting piece, is larger than the outer diameter of the ribbed steel bar sleeve axial cold extrusion connecting piece, and the inner diameter of the opening at the other end is smaller than the outer diameter of the ribbed steel bar sleeve axial cold extrusion connecting piece. When the tool is continuously pressurized and the cold extrusion deformation of the ribbed steel bar sleeve axial cold extrusion connecting piece is realized through the internal conical surface structure of the tool, the tool can generate extremely large pressure, and the pressure can promote the upper jaw and the lower jaw to generate the phenomenon of up-down eversion, so that the actual output pressure tonnage value of the hydraulic extrusion equipment can not reach the rated value, and the connection quality of ribbed steel bars is influenced.
Therefore, it is a need for a person skilled in the art to provide a device that prevents the upper and lower jaws from everting during an axial compression connection.
Disclosure of Invention
In view of the above, the invention provides an axial cold extrusion connecting device for ribbed steel bar sleeves, which can eliminate unbalanced load force between upper and lower jaws, improve ribbed steel bar connecting quality, and has convenient operation and high construction efficiency.
In order to achieve the above purpose, the invention adopts the following technical scheme: a ribbed steel bar sleeve axial cold extrusion connection apparatus comprising:
the driving cylinder is connected with a first jaw seat on a cylinder body of the driving cylinder, one end of the first jaw seat is provided with a reducing sleeve, the outer side of the cylinder body of the driving cylinder is connected with a driving cylinder jacket in a sliding manner, and the driving cylinder jacket synchronously stretches and contracts along with a piston rod of the driving cylinder;
the guide cylinder is arranged on one side of the driving cylinder side by side, a piston rod of the guide cylinder is fixedly connected with the other end of the first jaw seat, a guide cylinder jacket is fixedly connected to a cylinder body of the guide cylinder, and the guide cylinder jacket is fixedly connected with the driving cylinder jacket and synchronously moves;
the second jaw seat is fixed on the driving cylinder jacket and positioned above the first jaw seat, and a ribbed steel bar sleeve axial cold extrusion connecting piece is arranged between the first jaw seat and the second jaw seat.
The beneficial effects of the invention are as follows: the ribbed steel bar sleeve axial cold extrusion connecting piece is placed between the first jaw seat and the second jaw seat, the diameter of the connecting piece is changed by utilizing the relative displacement between the first jaw seat and the second jaw seat under the constraint action of the reducing sleeve, the connecting process of ribbed steel bars is further completed, the rigidity of the whole equipment can be improved by arranging the guide cylinder on one side of the driving cylinder, so that the unbalanced load force between the upper jaw seat and the lower jaw seat is offset, the eversion phenomenon of the upper jaw seat and the lower jaw seat is effectively prevented, the rated extrusion force of a tool is fully exerted, and the extrusion deformation of the ribbed steel bar sleeve axial cold extrusion connecting piece is completed. Meanwhile, the product adopts the driving cylinder and the guide cylinder, increases the bearing area of the piston rod, improves the rated output extrusion force of the whole tool, and ensures that the product meets the working requirements of ribbed steel bar sleeve axial cold extrusion connectors with more specifications.
Preferably, one end of the driving cylinder jacket is in threaded connection with a top cover, and the top cover is fixedly connected with a piston rod of the driving cylinder.
The technical effects produced by the method are as follows: the top cover is a transition piece for transitionally switching the driving cylinder piston rod and the driving cylinder jacket, so that the driving cylinder jacket is driven by the driving cylinder piston rod to reciprocate.
Preferably, one end of the guide cylinder jacket is provided with an internal thread, the cylinder body of the guide cylinder is provided with an external thread, the guide cylinder jacket is in threaded connection with the cylinder body of the guide cylinder, the other end of the guide cylinder jacket is in threaded connection with a sealing cover, and a handle is connected between the sealing cover and the top cover.
The technical effects produced by the method are as follows: the guide cylinder jacket is in threaded connection with the cylinder body of the guide cylinder, the guide cylinder jacket and the driving cylinder jacket synchronously move, and the lifting handle is convenient for turnover equipment.
Preferably, the outer side wall of the driving cylinder jacket is provided with a connecting lug, a plurality of bolt holes are formed in the connecting lug corresponding to the axial interval of the driving cylinder jacket, the outer side wall of the guiding cylinder jacket, which is close to the connecting lug, is provided with a connecting groove plate, the connecting lug is adapted to be inserted on the connecting groove plate, a plurality of connecting holes are formed in the connecting groove plate, and the connecting holes are in one-to-one correspondence with the bolt holes and are connected through bolts.
The technical effects produced by the method are as follows: the driving cylinder outer sleeve and the guide cylinder outer sleeve are fixedly connected by the connecting convex blocks and the connecting groove plates, and the disassembly and the assembly are convenient.
Preferably, the connecting groove plate is provided with a plurality of lightening holes.
The technical effects produced by the method are as follows: the weight reducing holes are used for reducing the weight of the components, saving materials and facilitating turnover.
Preferably, a handle is fixedly connected to the bottom of one side of the guide cylinder jacket.
The technical effects produced by the method are as follows: the handle is convenient for holding equipment and is convenient for construction operation.
Preferably, the piston rod of the guide cylinder is opposite to the piston rod of the driving cylinder in arrangement direction, a first oil inlet and outlet hole is formed in the bottom of the cylinder body of the driving cylinder, a second oil inlet and outlet hole is formed in the end portion of the piston rod of the guide cylinder, oil nozzles are connected to the first oil inlet and outlet hole and the second oil inlet and outlet hole, and the driving cylinder and the guide cylinder are communicated with an external oil pumping system through the oil nozzles.
The technical effects produced by the method are as follows: the nozzle is utilized to provide power media of the guide cylinder and the driving cylinder, and the telescopic state of the guide cylinder and the driving cylinder is required to be ensured to be consistent.
Preferably, a protective cover is fixed at the bottom of the cylinder body of the driving cylinder, and the oil nozzle is positioned at the inner side of the protective cover.
The technical effects produced by the method are as follows: the protection cover can protect the oil nozzle.
Preferably, a positioning sleeve is fixed below the second jaw seat and used for limiting the rib reinforcing steel sleeve axial cold extrusion connecting piece.
Drawings
Fig. 1 is a first overall construction diagram of an axial cold extrusion connection device for ribbed steel bar sleeves according to the present invention;
fig. 2 is a second overall structure diagram of the ribbed steel bar sleeve axial cold extrusion connecting device of the present invention;
fig. 3 is a sectional view of an axial cold-extrusion connection apparatus for ribbed steel bar sleeves of the present invention.
The novel clamping jaw comprises a driving cylinder 1, a first jaw seat 2, a reducing sleeve 3, a driving cylinder jacket 4, a guide cylinder 5, a guide cylinder jacket 6, a second jaw seat 7, a top cover 8, a sealing cover 9, a connecting lug 10, a connecting groove plate 11, a bolt hole 12, a connecting hole 13, a weight reducing hole 14, a handle 15, a nipple 16, a protective cover 17, a positioning sleeve 18 and a locking block 19.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 3 of the drawings, an axial cold extrusion connection apparatus for ribbed steel bar sleeves according to an embodiment of the present invention includes:
the driving cylinder 1, the bottom of the outside of the cylinder body of the driving cylinder 1 is fixedly connected with a first jaw seat 2, one end of the first jaw seat 2 is provided with a reducing sleeve 3, and the reducing sleeve is a reducing foundation of the ribbed steel bar sleeve axial cold extrusion connecting piece; the two ribbed steel bars are connected through the radial diameter change of the connecting piece, the outer side of the first jaw seat, which is close to the reducing sleeve, is connected with a locking block 19, so that the constraint state of the reducing sleeve is ensured, and the reducing sleeve is prevented from being damaged under high load pressure; the outer side of the cylinder body of the driving cylinder 1 is connected with a driving cylinder jacket 4 in a sliding manner, the driving cylinder jacket 4 moves synchronously along with the piston rod of the driving cylinder in a telescopic manner, and the driving cylinder jacket is matched with the outer side of the cylinder body of the driving cylinder, so that a larger shaking gap is avoided;
the guide cylinder 5 is arranged on one side of the driving cylinder 1 side by side, a piston rod of the guide cylinder 5 is fixedly connected with the first jaw seat 2, a guide cylinder jacket 6 is fixedly connected to a cylinder body of the guide cylinder 5, and the guide cylinder jacket 6 and the driving cylinder jacket 4 are fixedly connected and synchronously move;
the second jaw seat 7, the second jaw seat 7 is fixed on the driving cylinder outer sleeve 4 and is located above the first jaw seat 2, the ribbed steel bar sleeve axial cold extrusion connecting piece is placed between the first jaw seat 2 and the second jaw seat 7, when the first jaw seat and the second jaw seat relatively displace, the arranged guide cylinder increases the supporting point, the original single-point supporting axial extrusion is changed into double-point supporting axial extrusion, the rated extrusion force is increased, the outward turning phenomenon of the first jaw seat and the second jaw seat is prevented, and the axial loading force is ensured to be equal to the actual acting force.
In other embodiments, a top cover 8 is screwed on one end of the driving cylinder jacket 4, and the top cover 8 is fixedly connected with the piston rod of the driving cylinder 1, so that the driving cylinder jacket moves under the drive of the piston rod of the driving cylinder. The top cover is a connection foundation that the driving cylinder jacket synchronously moves along with the driving cylinder piston rod.
In other embodiments, one end of the guide cylinder jacket 6 is provided with an internal thread, the cylinder body of the guide cylinder 5 is provided with an external thread, the guide cylinder jacket 6 is in threaded connection with the cylinder body of the guide cylinder 5, the other end of the guide cylinder jacket 6 is in threaded connection with the sealing cover 9, and a handle is connected between the sealing cover 9 and the top cover 8. The detachable connection is convenient for equipment assembly, and the handle is convenient for transferring and using.
In other embodiments, the outer side wall of the driving cylinder jacket 4 is provided with a connecting lug 10, a plurality of bolt holes 12 are formed in the connecting lug 10 at intervals corresponding to the axial direction of the driving cylinder jacket, a connecting groove plate 11 is arranged on the outer side wall, close to the connecting lug, of the guiding cylinder jacket 6, the connecting lug 10 is adaptively inserted on the connecting groove plate 11, a plurality of connecting holes 13 are formed in the connecting groove plate 11, the connecting holes 13 are in one-to-one correspondence with the bolt holes 12 and are in bolted connection, and under the matching relationship of the connecting lug and the connecting groove plate, bolts are used for fastening in an auxiliary mode, so that the relative fixed connection between the guiding cylinder jacket and the driving cylinder jacket is realized.
In other embodiments, the connecting channel plate 11 is provided with a plurality of lightening holes 14, which reduce the weight of the component and reduce the transfer load of workers.
In other embodiments, a handle 15 is fixedly connected to the bottom of one side of the guide cylinder jacket 6, and a worker uses the handle and the lifting handle to hold the device, so that the direction is controlled, and the construction is facilitated.
In other embodiments, the arrangement direction of the piston rod of the guide cylinder 5 is opposite to that of the piston rod of the driving cylinder 1, a first oil inlet and outlet hole is formed in the bottom of the cylinder body of the driving cylinder 1, a second oil inlet and outlet hole is formed in the end portion of the piston rod of the guide cylinder, oil nozzles 16 are connected to the first oil inlet and outlet hole and the second oil inlet and outlet hole, the first oil inlet and outlet hole and the second oil inlet and outlet hole can be the same oil nozzle, the oil nozzles can be independently adopted, and an external oil pumping system is connected through the oil nozzles, so that the synchronous telescopic state of the guide cylinder and the driving cylinder is ensured.
In other embodiments, the cylinder bottom of the driving cylinder 1 is fixed with a protecting cover 17, and the oil nozzle 16 is positioned inside the protecting cover 17.
In other embodiments, a positioning sleeve 18 is fixed below the second jaw seat 7, and the positioning sleeve 18 is used for limiting the rib reinforcing steel sleeve axial cold extrusion connecting piece.
The supporting guide cylinder that uses of this product can provide equipment rigidity in the extrusion process of ribbed steel bar sleeve axial cold extrusion connecting piece to offset the unbalance loading power, thereby effectively prevent that first seat, second from keeping silent the seat and produce the phenomenon of turning up, give full play to the rated extrusion force of instrument, accomplish ribbed steel bar sleeve axial cold extrusion connecting piece's extrusion deformation. Simultaneously, because this patent adopts two sets of hydro-cylinders (actuating cylinder and guide cylinder), increased the pressure-bearing area of piston rod, improved the rated output extrusion force of whole instrument, make it satisfy the work requirement of ribbed steel bar sleeve axial cold extrusion connecting piece of more specifications.
For the device and the use method disclosed in the embodiments, since the device and the use method correspond to the method disclosed in the embodiments, the description is relatively simple, and the relevant places refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A ribbed steel bar sleeve axial cold extrusion connection apparatus comprising:
the device comprises a driving cylinder (1), wherein a first jaw seat (2) is fixedly connected to a cylinder body of the driving cylinder (1), a reducing sleeve (3) is arranged at one end of the first jaw seat (2), a driving cylinder jacket (4) is slidably connected to the outer side of the cylinder body of the driving cylinder (1), and the driving cylinder jacket (4) synchronously stretches and contracts along with a piston rod of the driving cylinder;
the guide cylinders (5) are arranged on one side of the driving cylinder (1) side by side, a piston rod of each guide cylinder (5) is fixedly connected with the other end of the first jaw seat (2), a guide cylinder jacket (6) is fixedly connected to a cylinder body of each guide cylinder (5), and the guide cylinder jacket (6) and the driving cylinder jacket (4) are fixedly connected and synchronously move;
the second jaw seat (7), the second jaw seat (7) is fixed on the driving cylinder jacket (4) and is located above the first jaw seat (2), and a ribbed steel bar sleeve axial cold extrusion connecting piece is placed between the first jaw seat (2) and the second jaw seat (7).
2. The ribbed steel bar sleeve axial cold-extrusion connecting device according to claim 1, characterized in that one end of the driving cylinder jacket (4) is connected with a top cover (8) in a threaded manner, and the top cover (8) is fixedly connected with a piston rod of the driving cylinder (1).
3. The ribbed steel bar sleeve axial cold-extrusion connecting device according to claim 2, characterized in that one end of the guide cylinder jacket (6) is provided with an internal thread, the cylinder body of the guide cylinder (5) is provided with an external thread, the guide cylinder jacket (6) is in threaded connection with the cylinder body of the guide cylinder (5), the other end of the guide cylinder jacket (6) is in threaded connection with a sealing cover (9), and a lifting handle is connected between the sealing cover (9) and the top cover (8).
4. A ribbed steel bar sleeve axial cold extrusion connecting device according to claim 3, characterized in that, be equipped with on the lateral wall of driving cylinder overcoat (4) and connect lug (10), the axial interval that corresponds driving cylinder overcoat on connecting lug (10) is equipped with a plurality of bolt holes (12), be equipped with on the lateral wall that direction cylinder overcoat (6) are close to the connection lug and connect frid (11), connect lug (10) adaptation grafting is on connecting frid (11), a plurality of connecting holes (13) have been seted up on connecting frid (11), connecting hole (13) and bolt hole (12) one-to-one and bolted connection.
5. The ribbed steel bar sleeve axial cold-extrusion joint apparatus of claim 4, wherein said joint channel plate (11) is provided with a plurality of lightening holes (14).
6. The ribbed steel bar sleeve axial cold-extrusion joint apparatus of claim 4, wherein a handle (15) is fixedly connected to a side bottom of the guide cylinder jacket (6).
7. The ribbed steel bar sleeve axial cold extrusion connecting device according to any one of claims 1-6, characterized in that the piston rod of the guide cylinder (5) and the piston rod of the driving cylinder (1) are arranged in opposite directions, a first oil inlet and outlet hole is arranged at the bottom of the cylinder body of the driving cylinder (1), a second oil inlet and outlet hole is arranged at the end part of the piston rod of the guide cylinder, oil nozzles (16) are connected to the first oil inlet and outlet hole and the second oil inlet and outlet hole, and the driving cylinder (1) and the guide cylinder (5) are communicated with an external oil pumping system through the oil nozzles (16).
8. The ribbed steel bar sleeve axial cold-extrusion connecting device according to claim 7, characterized in that the cylinder bottom of the driving cylinder (1) is fixed with a protective cover (17), the oil nozzle (16) being located inside the protective cover (17).
9. The ribbed steel bar sleeve axial cold-extrusion connecting device according to claim 1, characterized in that a positioning sleeve (18) is fixed below the second jaw seat (7), said positioning sleeve (18) being used for limiting the ribbed steel bar sleeve axial cold-extrusion connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410148675.4A CN117733038A (en) | 2024-02-02 | 2024-02-02 | Ribbed steel bar sleeve axial cold extrusion connecting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410148675.4A CN117733038A (en) | 2024-02-02 | 2024-02-02 | Ribbed steel bar sleeve axial cold extrusion connecting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117733038A true CN117733038A (en) | 2024-03-22 |
Family
ID=90256742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410148675.4A Pending CN117733038A (en) | 2024-02-02 | 2024-02-02 | Ribbed steel bar sleeve axial cold extrusion connecting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117733038A (en) |
-
2024
- 2024-02-02 CN CN202410148675.4A patent/CN117733038A/en active Pending
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