CN112497142A - Disassembling device and method for connecting pin shaft of bent-up device - Google Patents
Disassembling device and method for connecting pin shaft of bent-up device Download PDFInfo
- Publication number
- CN112497142A CN112497142A CN202011111106.0A CN202011111106A CN112497142A CN 112497142 A CN112497142 A CN 112497142A CN 202011111106 A CN202011111106 A CN 202011111106A CN 112497142 A CN112497142 A CN 112497142A
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- CN
- China
- Prior art keywords
- support plate
- jack
- bending device
- pin shaft
- connecting pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005452 bending Methods 0.000 claims abstract description 36
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000010276 construction Methods 0.000 description 5
- 239000004567 concrete Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a dismantling device for a connecting pin shaft of a bending device, which comprises a jack and a reverse jacking frame, wherein the reverse jacking frame consists of a support plate, a reverse jacking support plate and at least two connecting rods, the jack is arranged on the support plate, the support plate and the reverse jacking support plate are respectively provided with a plurality of first through holes penetrating through the connecting rods, each connecting rod is respectively provided with a fastening nut for fixing the support plate and the reverse jacking support plate, and a second through hole allowing the pin shaft of the bending device to be separated from the position, which is over against the jack, on the reverse jacking support plate. The device has simple structure, light weight and convenient assembly and disassembly. The invention also discloses a method for removing the bent-up device connecting pin shaft by using the removing device.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a dismounting device and a dismounting method for a pin shaft of a pretensioned precast beam slab bending machine.
Background
At present, in bridge construction, a broken line reinforcement prestressed concrete pretensioned beam is generally adopted, and a bending device is used for bending a steel strand, so that the spanning performance of a beam slab is improved. Traditional bent ware is adopted the lower steel sheet to be connected with the base, and on rethread base anchor to the basis, prestressing force put and need cut off the steel sheet before opening, and prestressing force is put and is opened the back, surpasss the steel sheet of beam slab part and needs cutting process, exposes at the steel sheet on beam slab surface and will form the corruption passageway, is unfavorable for the durability of beam slab concrete. And the bent-up device connected by the pull rod and the rotating shaft does not have the defects, but the connecting pin shaft needs to be disassembled. Because the power that the curved ware transmitted for the round pin axle is great, the corresponding frictional resistance of round pin axle and curved ware otic placode is great, adopts artifical direct dismantlement axle to waste time and energy a little, and the hammering power when dismantling moreover can produce certain influence to the steel strand wires and the concrete of curved ware department, makes structural crack appear in this department even. If the pull rod is cut off, the pull rod cannot be reused, so that the total construction cost is increased.
Disclosure of Invention
In order to solve the problems, the invention provides a dismounting device and a dismounting method for a bent lifter connecting pin shaft, which can more efficiently, more conveniently and more safely dismount the bent lifter pin shaft and improve the construction efficiency and the cost.
The technical scheme adopted by the invention for solving the technical problems is as follows: the device for removing the connecting pin shaft of the bending device comprises a jack and a reverse jacking frame, wherein the reverse jacking frame consists of a support plate, a reverse jacking support plate and at least two connecting rods, the jack is installed on the support plate, a plurality of first through holes penetrating through the connecting rods are respectively formed in the support plate and the reverse jacking support plate, fastening nuts for fixing the support plate and the reverse jacking support plate are respectively installed on each connecting rod, and a second through hole allowing the pin shaft of the bending device to be separated from is formed in the position, opposite to the jack, of the reverse jacking support plate. The supporting plate of the device is over against the jack base, the reverse jacking supporting plate is tightly attached to the lug plates of the bending device, the lug plates are used as limiting fixed ends, the pin shaft is ejected out from the lug plates of the bending device through the jack, and the pin shaft is detached.
Furthermore, the number of the connecting rods is two, the number of the first through holes in the reverse top supporting plate is two, and the second through holes are arranged in the middle of the two first through holes.
Furthermore, the support plate and the reverse top support plate are made of steel plates.
Furthermore, the jack adopts a mechanical jack or a hydraulic jack.
Further, a backing plate is further mounted on the connecting rod and arranged between the fastening nut and the support plate and/or the reverse jacking support plate.
The invention also discloses a dismantling method of the bent-up device connecting pin shaft, which comprises the following steps:
s1, forming a through hole in a bent-up device lug plate, then enabling a connecting rod to penetrate through a reverse ejection supporting plate and the bent-up device lug plate, screwing a fastening nut to enable the reverse ejection supporting plate to be tightly attached to the bent-up device lug plate, and enabling the tail end of a connecting pin shaft of the bent-up device to be opposite to a second through hole; simultaneously, the base of the bending device is just positioned between the connecting rods;
s2, penetrating the support plate on the other end of the connecting rod to ensure that the jack can be put down between the support plate and the starting end of the connecting pin shaft of the bending device, then installing a gasket, and screwing up a fastening nut;
s3, mounting the jack on the support plate, enabling a base of the jack to be opposite to the support plate, and enabling a jacking head of the jack to be opposite to a connecting pin shaft of the bending device;
s4, checking and correcting the reverse jacking support plate, and then symmetrically screwing the reverse jacking support plate and the fastening nuts at corresponding positions of the support plate, so that the jack is fixed at the starting end of the connecting pin shaft of the support plate and the bending device;
and S5, driving the jack to start to apply pressure until the connecting pin shaft of the bending device is ejected out.
The invention has the beneficial effects that:
1. the device of the invention uses common steel structure materials, and the raw materials are simple and convenient to process and manufacture;
2. the device uses the power equipment as the jack, has high reliability and simple operation, and saves manpower;
3. the device has the advantages of simple structure, less material use, light weight, convenient assembly and disassembly, high safety and convenient repeated use;
4. the device utilizes the lug plate of the base of the bending device for limiting, and an additional limiting device is not required to be added;
5. the dismounting method is simple to operate, the pin shaft dismounting efficiency is high, the labor intensity of workers is reduced, and the working procedure occupation time is reduced;
6. the device of the invention does not require special maintenance and repair.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a top view of the structure of the present invention;
FIG. 3 is a front elevational view of the construction of the plate of the present invention;
FIG. 4 is a front view of the structure of the reverse roof support plate of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 4, the dismounting device for the connecting pin shaft of the bending device is manufactured by using the principle of an anti-jacking device, and specifically comprises a jack 1 and an anti-jacking frame, wherein the anti-jacking frame consists of a support plate 2, an anti-jacking support plate 3 and at least two connecting rods 4. In view of the convenience of installation, the present embodiment employs 2 connecting rods 4. The support plate 2 and the reverse top support plate 3 are respectively provided with a plurality of first through holes 20 penetrating the connecting rods 4, each connecting rod 4 is respectively provided with a fastening nut 5 for fixing the support plate 2 and the reverse top support plate 3, a base plate 6 can be respectively arranged between the fastening nut 5 and the support plate 2 and the reverse top support plate 3, and the base plate 6 can also be arranged between the fastening nut 5 and the support plate 2 or between the fastening nut 5 and the reverse top support plate 3. A second through hole 30 allowing the bending device pin shaft 7 to be separated is formed in the position, opposite to the jack, of the reverse jacking support plate 3, and the second through hole 30 is arranged in the middle of the two first through holes 20. The support plate 2 and the reverse jacking support plate 3 are made of steel plates, and the jack 1 is a mechanical jack or a hydraulic jack.
The invention also discloses a dismantling method of the bent-up device connecting pin shaft, which comprises the following steps: firstly, through holes are formed in the lug plates of the bending device, two connecting rods 4 penetrate through first through holes 20 on two sides of a reverse jacking support plate 3 and the lug plates of the bending device, then the reverse jacking support plate 3 is tightly attached to the lug plates of the bending device, and the tail end of a connecting pin shaft 7 of the bending device is over against a second through hole 30 in the middle of the reverse jacking support plate 3; meanwhile, the base of the bender is just positioned between the two connecting rods, the base plate 6 is placed after the position is adjusted, and the fastening nut 5 is screwed. Secondly, the support plate 2 penetrates through the other end of the connecting rod 4, the jack 1 can be put down at the starting end of the connecting pin shaft 7 of the support plate 2 and the bending device, then the gasket 6 is installed, and the fastening nut 5 is screwed up. Thirdly, the jack is arranged on the support plate 2, so that the base of the jack 1 is opposite to the support plate 2, and the jacking head is opposite to the connecting pin shaft 7 of the bending device. Checking the supporting plate 3, and then symmetrically screwing the fastening nuts 5 at the corresponding positions of the supporting plate 2, so that the jack 1 is fixed at the starting end of the supporting plate 2 and the connecting pin shaft 7 of the bending device. The jack 1 starts to apply pressure until the bending device connecting pin 7 is ejected out.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made in the claims and the description of the present invention are within the scope of the present invention.
Claims (6)
1. The device for removing the connecting pin shaft of the bending device is characterized by comprising a jack and an anti-jacking frame, wherein the anti-jacking frame consists of a support plate, an anti-jacking support plate and at least two connecting rods, the jack is arranged on the support plate, the support plate and the anti-jacking support plate are respectively provided with a plurality of first through holes penetrating through the connecting rods, each connecting rod is respectively provided with a fastening nut for fixing the support plate and the anti-jacking support plate, and the anti-jacking support plate is provided with a second through hole allowing the pin shaft of the bending device to be separated from the jack in a position right opposite to the jack.
2. The bender connecting pin removal apparatus according to claim 1, wherein the number of the connecting rods is two, the number of the first through holes on the reverse top supporting plate is two, and the second through hole is disposed at the middle of the two first through holes.
3. The bender connector pin removal apparatus as claimed in claim 1, wherein said support and said counter-top support are steel plates.
4. The bender connecting pin removal apparatus according to claim 1, wherein the jack is a mechanical jack or a hydraulic jack.
5. The bender connecting pin removal apparatus according to claim 1, wherein a backing plate is further installed on the connecting rod, and the backing plate is disposed between the fastening nut and the support plate and/or the reverse top support plate.
6. A method for removing a bender connector pin according to any of claims 1 to 5, wherein the following steps are performed:
s1, forming through holes in the lug plates of the bending device, then enabling the connecting rod to penetrate through the reverse ejection supporting plate and the lug plates of the bending device, enabling the reverse ejection supporting plate to be tightly attached to the lug plates of the bending device, enabling the tail end of a connecting pin shaft of the bending device to be opposite to the second through hole, and enabling a base of the bending device to be just positioned between the connecting rods;
s2, penetrating the support plate on the other end of the connecting rod to ensure that the jack can be put down between the support plate and the starting end of the connecting pin shaft of the bending device;
s3, mounting the jack on the support plate, enabling a base of the jack to be opposite to the support plate, and enabling a jacking head of the jack to be opposite to a connecting pin shaft of the bending device;
s4, checking and correcting the reverse jacking support plate, and then symmetrically screwing the reverse jacking support plate and the fastening nuts at corresponding positions of the support plate, so that the jack is fixed at the starting end of the connecting pin shaft of the support plate and the bending device;
and S5, driving the jack to start to apply pressure until the connecting pin shaft of the bending device is ejected out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011111106.0A CN112497142A (en) | 2020-10-16 | 2020-10-16 | Disassembling device and method for connecting pin shaft of bent-up device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011111106.0A CN112497142A (en) | 2020-10-16 | 2020-10-16 | Disassembling device and method for connecting pin shaft of bent-up device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112497142A true CN112497142A (en) | 2021-03-16 |
Family
ID=74953867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011111106.0A Pending CN112497142A (en) | 2020-10-16 | 2020-10-16 | Disassembling device and method for connecting pin shaft of bent-up device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112497142A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1466910A (en) * | 1975-06-02 | 1977-03-09 | Pollock J | Press for removal of piston pins |
| CN2417969Y (en) * | 2000-01-31 | 2001-02-07 | 上海宝钢集团公司 | Hydraulic pin-pulling-out device |
| CN201579583U (en) * | 2009-12-28 | 2010-09-15 | 莱芜钢铁股份有限公司 | Pin shaft automatic taking out device |
| CN207669228U (en) * | 2017-12-27 | 2018-07-31 | 中国核工业二四建设有限公司 | A kind of tower crane axis pin dismounting special tooling |
| CN209755061U (en) * | 2019-03-21 | 2019-12-10 | 安徽恒源煤电股份有限公司 | Large-scale shaft coupling dismounting device |
| CN110653560A (en) * | 2019-09-12 | 2020-01-07 | 上海宝冶冶金工程有限公司 | Counter-force support for replacing coupler and using method |
-
2020
- 2020-10-16 CN CN202011111106.0A patent/CN112497142A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1466910A (en) * | 1975-06-02 | 1977-03-09 | Pollock J | Press for removal of piston pins |
| CN2417969Y (en) * | 2000-01-31 | 2001-02-07 | 上海宝钢集团公司 | Hydraulic pin-pulling-out device |
| CN201579583U (en) * | 2009-12-28 | 2010-09-15 | 莱芜钢铁股份有限公司 | Pin shaft automatic taking out device |
| CN207669228U (en) * | 2017-12-27 | 2018-07-31 | 中国核工业二四建设有限公司 | A kind of tower crane axis pin dismounting special tooling |
| CN209755061U (en) * | 2019-03-21 | 2019-12-10 | 安徽恒源煤电股份有限公司 | Large-scale shaft coupling dismounting device |
| CN110653560A (en) * | 2019-09-12 | 2020-01-07 | 上海宝冶冶金工程有限公司 | Counter-force support for replacing coupler and using method |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210316 |