CN109333447B - Pin puller and pin pulling method suitable for large-scale connector - Google Patents
Pin puller and pin pulling method suitable for large-scale connector Download PDFInfo
- Publication number
- CN109333447B CN109333447B CN201811440429.7A CN201811440429A CN109333447B CN 109333447 B CN109333447 B CN 109333447B CN 201811440429 A CN201811440429 A CN 201811440429A CN 109333447 B CN109333447 B CN 109333447B
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- pin
- lever
- slider
- sliding block
- shaft
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- 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
- B25B27/023—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 using screws
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The invention relates to a pin puller and a pin pulling method suitable for a large-scale connector body, wherein the pin puller comprises a supporting column, a pin pulling shaft, a lead screw and a lever, a plurality of mounting holes are formed along the supporting column, one end of the pin pulling shaft can be screwed into a pin hole to be pulled, a spanner and a sliding block are matched on the lead screw, one end, the middle part and the other end of the lever are respectively detachably hinged with the mounting holes, the other end of the pin pulling shaft and the sliding block through hinge shafts, when the spanner drives the lead screw to rotate to drive the sliding block to move upwards, the lead screw and the supporting column are pressed, and the lever swings upwards by taking the position of the hinged mounting hole as a fulcrum, so that pulling force is applied to the pin pulling shaft, and the lever can deviate the fulcrum by a certain distance to prevent the lever from being blocked when swinging. The pin puller combines screw reinforcement with lever reinforcement, increases pin pulling force, reduces labor intensity, enlarges pin pulling length range, and is simple to operate.
Description
Technical Field
The invention relates to a pin puller, in particular to a pin puller and a pin pulling method suitable for a large-scale connector body.
Background
Modern construction equipment is increasingly developed towards the large-scale direction, and the whole transportation of the large-scale construction equipment is increasingly difficult due to the limit of railway transportation and the limit of highway transportation height, width and weight. The large-scale construction equipment adopts a steel box girder structure type, the steel box girder segments are generally pin joint bodies, the steel box girder segments are manufactured in a factory, the steel box girder segments are tried to be integrated, and then the steel box girder segments are disassembled and transported to a construction site and then assembled.
The connecting pin shaft of the large-sized connector body is large in diameter and long in length, pin pulling is very difficult, the existing pin pulling device is a screw rod pin pulling device, pin pulling force is small, pin pulling length is short, and the pin pulling requirement of the large-sized connector body cannot be met.
Disclosure of Invention
The invention aims to provide a pin puller and a pin pulling method suitable for a large-scale connector body, wherein the pin puller combines screw reinforcement and lever reinforcement, so that the pin pulling force is increased, the labor intensity is reduced, the pin pulling length range is enlarged, and the operation is simple.
The technical scheme adopted by the invention is as follows:
the utility model provides a pin puller suitable for large-scale joint body, including the support column, pull out round pin axle, lead screw and lever, the support column is equipped with a plurality of mounting hole along the line, pull out round pin axle one end can screw in to wait to pull out the pinhole, the cooperation has spanner and slider on the lead screw, the one end of lever, middle part and the other end are respectively with the mounting hole through the articulated shaft, pull out the round pin axle other end and slider detachable articulated, when the rotatory slider that drives of spanner drive lead screw moves up, thereby lead screw and support column are all compressed tightly and the lever uses articulated mounting hole position as the fulcrum upwards swing to exert the extraction force to pull out the round pin axle, the lever can be shifted the fulcrum and blocked when preventing the lever swing by certain distance.
Further, the lever comprises two main boards and a connecting plate for connecting the two main boards, and the mounting hole, the pulling pin shaft and the sliding block are all positioned between the two main boards and are hinged and matched with the two main boards through the hinge shaft.
Further, at the articulated department of lever and mounting hole, the mounting hole is the round hole, is equipped with two waist holes on the lever, and the articulated shaft passes round hole and two waist holes simultaneously, and the round hole is located between two waist holes, and the articulated shaft both ends cooperate with the nut, thereby the nut compresses tightly respectively in the outside of two waist holes and prevents that the articulated shaft from deviate from, and the skew scope of lever is the length of waist hole.
Further, at the articulated department of lever and slider, the articulated shaft is fixed on the slider and both ends are located the slider both sides, are equipped with two open slots on the lever, and the open slot is blocked respectively and is put into and put on the articulated shaft of slider both sides, and the slider is located between two open slots, has the shrouding respectively to overlap on the articulated shaft of slider both sides, thereby the shrouding is fixed respectively in the outside of two open slots and is prevented that the slider from deviating from the open slot.
Further, the main board is a fish web plate with a wide middle and two narrow ends.
Further, the hinged positions on the main board are provided with reinforcing plates.
Further, the spanner is matched with the end part of the screw rod through a square hole and a square shaft.
Further, the support column is a tube.
A pin pulling method suitable for a large-scale joint body comprises the steps of arranging a support column, a pulling pin shaft, a lead screw and a lever, wherein a plurality of mounting holes are formed in the support column along the line, a spanner and a sliding block are matched on the lead screw, one end of the pulling pin shaft is screwed into a pin hole to be pulled out, the other end of the pulling pin shaft is hinged to the middle of the lever, two ends of the lever are hinged to the bottommost mounting holes and the sliding block respectively, the spanner drives the lead screw to rotate, the lead screw and the support column are hinged to the middle of the lever, the lead screw is driven to rotate, the lead screw and the support column are driven to rotate, the position of the mounting hole of the layer above the lever is hinged to the middle of the lever, the lead screw is driven to move upwards, the lead screw is driven to rotate, the lead screw is driven to move upwards, the lead screw is matched with the mounting hole to be lifted upwards, the position of the support column is gradually, and the sliding block is adjusted downwards until the sliding block is suitable for being lifted, and the lead screw is pulled out.
Further, in the process of lifting the pin to be pulled out, when the heights of the support column and/or the screw rod are insufficient, the heightening piece is adopted for heightening.
The beneficial effects of the invention are as follows:
the pin puller combines screw reinforcement and lever reinforcement, increases pin pulling force (the pin pulling force is 2 times of that of the traditional one), reduces labor intensity, enlarges the length range of the pin pulling (the pin pulling length is 3 times of that of the traditional one), and is simple to operate (the pin pulling can be completed by 2 persons).
Drawings
Fig. 1 is a schematic diagram illustrating the operation of a pin puller according to an embodiment of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic view of a pin puller wrench in accordance with an embodiment of the present invention.
Fig. 4 is a schematic view showing the assembly of the lever and the slider of the pin puller in the embodiment of the present invention.
Fig. 5 is a cross-sectional view of fig. 4.
Fig. 6 is a schematic diagram of a motherboard of a pin puller in an embodiment of the present invention.
Fig. 7 is a schematic view of a seal plate of a pin puller in an embodiment of the present invention.
Fig. 8 is a schematic view of a slider of a pin puller and its hinge shaft in an embodiment of the present invention.
Fig. 9 is a diagram showing the operation of the pin puller according to the embodiment of the present invention.
Fig. 10 is a second diagram illustrating the operation of the pin puller according to the embodiment of the present invention.
Fig. 11 is a third diagram illustrating the operation of the pin puller in accordance with the embodiment of the present invention.
Fig. 12 is a diagram showing the operation of the pin puller according to the embodiment of the present invention.
Fig. 13 is a diagram showing the operation of the pin puller according to the embodiment of the present invention.
Fig. 14 is a diagram showing the operation of the pin puller according to the embodiment of the present invention.
Fig. 15 is a diagram of the operation of the pin puller according to the embodiment of the present invention.
Fig. 16 is a diagram illustrating an operation of the pin puller according to the embodiment of the present invention.
In the figure: 1-supporting columns; 2, pulling out the pin shaft; 3-lever; 4-a lead screw; 5-a slider; 6-a spanner; 7-a nut; 8-sealing plates; 9-a hinge shaft; 10-a main board; 11-connecting plates; 12-reinforcing plates; a-waist hole; b-open slot.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1 and 2, a pin puller suitable for a large-scale joint body comprises a support column 1 (in this embodiment, the support column 1 is a pipe fitting, dead weight is reduced, cost is low), a pull-out pin shaft 2, a lead screw 4 and a lever 3, wherein a plurality of mounting holes are formed along the support column 1, one end of the pull-out pin shaft 2 can be screwed into a pin hole to be pulled out, a spanner 6 and a sliding block 5 are matched on the lead screw 4, one end, the middle part and the other end of the lever 3 are respectively detachably hinged with the mounting holes, the other end of the pull-out pin shaft 2 and the sliding block 5 through a hinge shaft 9, when the spanner 6 drives the lead screw 3 to rotate to drive the sliding block 5 to move upwards, the lead screw 4 and the support column 1 are pressed, the lever 3 swings upwards with the hinged mounting hole position as a pivot, so that pull-out force is applied to the pull-out pin shaft 2, and the lever 3 can deviate the pivot by a certain distance to prevent the lever 3 from being clamped when swinging. The pin puller combines the reinforcement of the screw rod 4 and the reinforcement of the lever 3, increases the pin pulling force (the pin pulling force is 2 times of that of the traditional one), reduces the labor intensity, enlarges the length range of the pin pulling (the pin pulling length is more than 3 times of that of the traditional one), and has simple operation (the pin pulling can be completed by 2 persons).
As shown in fig. 1 and 2, in this embodiment, the lever 3 includes two main boards 10 and a connecting board 11 connecting the two main boards 10, the mounting hole, the pulling pin shaft 2 and the slider 5 are all located between the two main boards 10 and all hinged to the two main boards 10 through the hinge shaft 9, the lever 3 is mainly stressed by the two main boards 10 and acts on two sides of the hinge shaft 9, the whole stress is uniform, and the structural strength is ensured.
As shown in fig. 1, 2 and 6, in this embodiment, at the hinge joint of the lever 3 and the mounting hole, the mounting hole is a circular hole, two waist holes a are provided on the lever 3, the hinge shaft 9 passes through the circular hole and the two waist holes a at the same time, the circular hole is located between the two waist holes a, the two ends of the hinge shaft 9 are matched with nuts 7, the nuts 7 are respectively pressed on the outer sides of the two waist holes a to prevent the hinge shaft 9 from falling out, and the offset range of the lever 3 is the length of the waist hole a. Of course, the opposite arrangement is also possible, the mounting hole is a waist hole a, and one end of the lever 3 is a round hole. The waist hole a provides a mounting allowance for the lever 3 so that the lever 3 can deviate from the fulcrum by a certain distance.
As shown in fig. 1, 2 and 4 to 6, in this embodiment, at the hinge position of the lever 3 and the slider 5, the hinge shaft 9 is fixed on the slider 5, and two ends are located at two sides of the slider 5, two open slots b are provided on the lever 3, the open slots b are respectively clamped into and put on the hinge shaft 9 at two sides of the slider 5, the slider 5 is located between the two open slots b, sealing plates 8 are respectively sleeved on the hinge shafts 9 at two sides of the slider 5, and the sealing plates 8 are respectively fixed at the outer sides of the two open slots b so as to prevent the slider 5 from falling out of the open slots b. The loading and unloading of lever 3 and slider 5 can be realized to loading and unloading shrouding 8, and easy operation is convenient.
As shown in fig. 1 and 3, in the present embodiment, the wrench 6 is matched with the end of the screw rod 3 through a square hole and a square shaft, so that the processing is convenient.
As shown in fig. 4 and 5, in this embodiment, the hinge positions on the main board 10 are provided with reinforcing plates 12 to strengthen the stress and avoid damaging the main board 10.
As shown in fig. 5 and 6, in this embodiment, the main board 10 is a fish web with a wide middle and two narrow ends, so that the dead weight of the main board 10 is reduced while the pin 2 to be pulled is ensured to be stressed.
As shown in fig. 9 to 16, the pin pulling process of the present embodiment includes the following specific steps:
1) As shown in fig. 9, one end of the pulling pin shaft 2 is screwed into the pin hole to be pulled, the other end is hinged with the middle part of the lever 3, and two ends of the lever 3 are respectively hinged with the bottommost mounting hole and the sliding block 5.
2) As shown in fig. 10, the wrench 6 drives the screw rod 4 to rotate to drive the sliding block 5 to move upwards, the screw rod 4 and the supporting column 1 are both pressed, the lever 3 swings upwards with the position of the bottommost mounting hole as a fulcrum, so that a section of pin to be pulled out is pulled out through the pulling pin shaft 2, and the pulling distance is 60mm.
3) As shown in fig. 11, the connection between the lever 3 and the bottommost mounting hole and the slider 5 are disconnected, the slider 5 is adjusted to a proper height, two ends of the lever 3 are respectively hinged with the upper mounting hole and the slider 5, then the spanner 6 drives the screw 4 to rotate so as to drive the slider 5 to move upwards, the screw 4 and the support column 1 are pressed, and the position of the lever 3, which is positioned above the upper mounting hole, serves as a fulcrum, swings upwards, so that a section of a pin to be pulled is pulled out continuously through the pulling pin shaft 2, and the pulling distance is 60+90mm.
4) As shown in fig. 12 and 13, the lever 3 is matched with the mounting hole 3 and the mounting hole 4 in sequence according to the previous procedure, and 60+90+100+100mm is pulled out altogether.
5) As shown in fig. 14 to 16, a bench with a height of 270mm is placed at the lead screw 3, and the lead screw 3 is matched with the mounting hole 5, the mounting hole 6 and the mounting hole 7 in sequence according to the previous procedure, and 60+90+100+100+100+100+100=650 mm is pulled out altogether.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (10)
1. Pin puller suitable for large-scale joint body, its characterized in that: including support column, pull out round pin axle, lead screw and lever, the support column is equipped with a plurality of mounting hole along the line, pull out round pin axle one end can screw in to wait to pull out the pinhole, the cooperation has spanner and slider on the lead screw, one end, the middle part and the other end of lever pass through the articulated shaft respectively with the mounting hole, pull out the round pin axle other end and slider detachable articulated, when the rotatory slider that drives of spanner drive lead screw moves up, lead screw and support column all are compressed tightly and thereby the lever is upwards swung with articulated mounting hole position as the fulcrum and is applyed the extraction force to pull out the round pin axle, the lever can deviate the fulcrum certain distance and prevent being blocked when the lever swings.
2. The pin puller for large connector bodies according to claim 1, wherein: the lever comprises two main boards and a connecting plate for connecting the two main boards, and the mounting hole, the pulling pin shaft and the sliding block are all positioned between the two main boards and are hinged and matched with the two main boards through the hinge shaft.
3. Pin puller applicable to large connector bodies according to claim 1 or 2, characterized in that: the hinge joint of lever and mounting hole department, the mounting hole is the round hole, is equipped with two waist holes on the lever, and the articulated shaft passes round hole and two waist holes simultaneously, and the round hole is located between two waist holes, and the articulated shaft both ends cooperation has the nut, thereby the nut compresses tightly respectively in the outside of two waist holes to prevent that the articulated shaft from deviate from, and the skew scope of lever is the length of waist hole.
4. Pin puller applicable to large connector bodies according to claim 1 or 2, characterized in that: the hinge joint of the lever and the sliding block is characterized in that the hinge joint is fixed on the sliding block, two ends of the hinge joint are located at two sides of the sliding block, two open grooves are formed in the lever and are respectively clamped in the hinge joint at two sides of the sliding block, the sliding block is located between the two open grooves, sealing plates are respectively sleeved on the hinge joint at two sides of the sliding block, and the sealing plates are respectively fixed at the outer sides of the two open grooves so as to prevent the sliding block from falling out of the open grooves.
5. The pin puller for large connector bodies according to claim 2, wherein: the main board is a fish web plate with a wide middle and two narrow ends.
6. The pin puller for large connector bodies according to claim 2, wherein: the hinged positions on the main board are all provided with reinforcing plates.
7. The pin puller for large connector bodies according to claim 1, wherein: the spanner is matched with the end part of the screw rod through a square hole and a square shaft.
8. The pin puller for large connector bodies according to claim 1, wherein: the support column is a pipe fitting.
9. A pin pulling method suitable for a large-scale connector body is characterized in that: the method comprises the steps of setting a support column, a pulling pin shaft, a screw and a lever, wherein a plurality of mounting holes are formed in the support column along the line, a spanner and a slider are matched on the screw, one end of the pulling pin shaft is screwed into a pin hole to be pulled out, the other end of the pulling pin shaft is hinged to the middle of the lever, two ends of the lever are hinged to the bottommost mounting holes and the slider respectively, then the spanner drives the screw to rotate so as to drive the slider to move upwards, the slider is driven to move upwards along with the lifting of the pin to be pulled out, the screw and the support column are compressed tightly, the position of the mounting holes are used as supporting points to swing upwards, and the slider is adjusted downwards to a proper height while the position of the supporting points is gradually lifted up along with the lifting of the pin to be pulled out, and then the connection of the lever and the bottommost mounting holes are disconnected, and the slider is enabled to be adjusted downwards until the pin to be pulled out completely.
10. The pin pulling method for a large-scale joint body according to claim 9, wherein: in the lifting process of the pin to be pulled out, when the heights of the support column and/or the screw rod are insufficient, the heightening piece is adopted for heightening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811440429.7A CN109333447B (en) | 2018-11-28 | 2018-11-28 | Pin puller and pin pulling method suitable for large-scale connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811440429.7A CN109333447B (en) | 2018-11-28 | 2018-11-28 | Pin puller and pin pulling method suitable for large-scale connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109333447A CN109333447A (en) | 2019-02-15 |
| CN109333447B true CN109333447B (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811440429.7A Active CN109333447B (en) | 2018-11-28 | 2018-11-28 | Pin puller and pin pulling method suitable for large-scale connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109333447B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593643B (en) * | 2022-01-25 | 2024-02-09 | 北京宇航系统工程研究所 | Double-hinge rod type air rudder locking and unlocking and buffeting restraining mechanism |
| CN116394199B (en) * | 2023-06-08 | 2023-10-03 | 成都飞机工业（集团）有限责任公司 | Aircraft flap dismounting device and aircraft flap dismounting method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4263705A (en) * | 1980-02-04 | 1981-04-28 | Kenneth Devening | Dowel pin puller |
| CN201799830U (en) * | 2010-08-27 | 2011-04-20 | 山西平阳重工机械有限责任公司 | Spiral pin remover |
| CN102189525A (en) * | 2011-05-31 | 2011-09-21 | 浙江工业职业技术学院 | Adjustable lever pin puller |
| CN103737544A (en) * | 2014-01-09 | 2014-04-23 | 中国神华能源股份有限公司 | Pin pulling tool |
| CN108161824A (en) * | 2016-12-08 | 2018-06-15 | 天津文佳科技有限公司 | Portable detachable lever pin puller |
| CN206501072U (en) * | 2017-02-27 | 2017-09-19 | 辛皓宇 | Quick pin remover |
| CN209335531U (en) * | 2018-11-28 | 2019-09-03 | 中铁重工有限公司 | Pin removal suitable for large-scale fitting body |
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2018
- 2018-11-28 CN CN201811440429.7A patent/CN109333447B/en active Active
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| Publication number | Publication date |
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| CN109333447A (en) | 2019-02-15 |
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