CN103286550A - Tool for pulling out pin shafts - Google Patents
Tool for pulling out pin shafts Download PDFInfo
- Publication number
- CN103286550A CN103286550A CN2013102409704A CN201310240970A CN103286550A CN 103286550 A CN103286550 A CN 103286550A CN 2013102409704 A CN2013102409704 A CN 2013102409704A CN 201310240970 A CN201310240970 A CN 201310240970A CN 103286550 A CN103286550 A CN 103286550A
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- China
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- bearing pin
- frame
- nut
- tool
- jack
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Abstract
The invention relates to a hydraulic tool, in particular to a tool for being used in a narrow space, and provides a tool for pulling out pin shafts. The tool for pulling out pin shafts comprises a nut fixed on a pin shaft and a drawing mechanism matched with the nut. The drawing mechanism comprises a drawing frame and a C-shaped frame which are connected in a sleeved mode. A through hole is formed in the side wall, connected with the C-shaped frame in a sleeved mode, of the drawing frame, and a bolt with a nut penetrates through the through hole. A hydraulic jack is arranged in the drawing frame, and the jack is arranged between the drawing frame and the C-shaped frame. The tool for pulling out pin shafts is simple in structure and can be manufactured with materials obtained on site, the largest drawing force can be obtained in a small space, the entire force bearing is balanced, and using safety is good.
Description
Technical field
The present invention relates to hydraulic tool, in particular for the instrument that uses in the small space, specifically is that a kind of bearing pin is extracted specific purpose tool.
Background technology
In maintenance of equipment, often run into the situation of the bearing pin of choosing, owing to the bearing pin reason bearing pins such as the bearing pin working space is little that get rusty, choose are difficult to take out.Because large hydraulic support volume weight is bigger, install in the small space again, but bearing pin is not because there is impetus, very is difficult to fix and extract.Simultaneously can't use jack directly to eject over there again, or pound with a hammer out etc.Under a lot of these type of situations, generally adopt gas cutting to melt bearing pin, or the destructive way of removing of other parts is removed.No matter be to melt bearing pin or destroy the bearing pin parts, all be that equipment has been caused the injury that can't repair, can directly cause the damage of equipment when serious, bring about great losses.But existing drawing equipment is generally bigger, some adopts the double-cylinder hydraulic jack simultaneously, the balance that can't keep jack in narrow space especially, though the existing equipment dynamics can reach requirement simultaneously, common drawing equipment can't effectively link together bearing pin and drawing axle.Therefore lack a kind of can the use in small space, pin that can on-the-spot combination takes out instrument.
Summary of the invention
In order to solve an existing difficult problem, the occasion to conventional instruments such as can not directly pushing up, pound with a hammer with jack takes out bearing pin provides a kind of bearing pin to extract specific purpose tool to purpose of the present invention exactly.
Technical scheme of the present invention is: a kind of bearing pin is extracted specific purpose tool, comprise the nut that is fixed on the bearing pin, and the drawing mechanism that cooperates with nut, described drawing mechanism comprises drawing frame and the C type frame that connects together mutually, have through hole on the drawing frame with on the sidewall of C type frame socket place, be penetrated with nut bolt in the through hole; In the described drawing frame hydraulic jack is installed, jack is arranged between drawing frame and the C type frame.
In order to keep assembly in loading process, can not produce phenomenons such as deflection, use safety, described jack axis and bearing pin axis are point-blank.
For bearing pin and drawing frame being linked together, the end of thread of described bolt and described nut are connected, and the maximum outside diameter of described nut is less than the bearing pin external diameter.
For bearing pin and nut being fixed, described nut is welded on an end of bearing pin, and the central lines of the center line of nut and bearing pin.Described drawing frame and C type frame are rectangle frame, adopt steel plate to be welded.
In order to increase the coverage of drawing bearing pin work, the free end of described C type frame is provided with movable cushion block.
Beneficial effect of the present invention can draw by such scheme: owing to adopt drawing frame and the C type frame that connects together mutually, in the described drawing frame hydraulic jack is installed, jack is arranged between drawing frame and the C type frame, simple and reliable for structure, can be used in combination at the scene, and the effect by jack can make between drawing frame and the C type frame and produce displacement, reaches the purpose of pulling out bearing pin.The present invention also can be according to the big I design different size bearing pin drawbench of bearing pin applicable to the bearing pin taking-up work of diameter greater than 20 millimeters; Be particularly useful for: owing to be subjected to effects limit such as space, this body structure of equipment, the occasion that conventional instruments such as can not directly pushing up, pound with a hammer with jack takes out bearing pin.And the present invention is simple in structure, and the making of can the scene gathering materials on the spot can obtain draft in little space, whole stress equalization, and safety in utilization is good.
This shows that the present invention compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is apparent.
Description of drawings:
Fig. 1 is the organigram of tool embodiment of the present invention;
Fig. 2 is the cross-sectional schematic of Fig. 1.
Fig. 3 is the organigram of drawing frame;
Fig. 4 is the organigram of C type frame.
Wherein, 1 is the drawing frame, and 2 is jack, and 3 is C type frame, and 4 is bolt, and 5 is nut, and 6 is cushion block, and 7 is bearing pin.
The specific embodiment:
In order to understand the present invention better, explain embodiments of the present invention in detail below in conjunction with accompanying drawing.
The specific embodiment: as shown in Figure 1, a kind of bearing pin is extracted specific purpose tool, comprise the nut 5 that is fixed on the bearing pin 7, and the drawing mechanism that cooperates with nut 5, described drawing mechanism comprises drawing frame 1 and the C type frame 3 that connects together mutually, described drawing frame 1 and C type frame 3 are rectangle frame, adopt steel plate to be welded.Have through hole on the drawing frame 1 with on the sidewall of C type frame 3 socket places, be penetrated with nut bolt 4 in the through hole; In the described drawing frame 1 hydraulic jack 2 is installed, jack 2 is arranged between drawing frame 1 and the C type frame 3.Described jack 2 axis and bearing pin 7 axis are point-blank.The end of thread of described bolt 4 and described nut 5 are connected, and nut is welded on the pin roll end face center, and nut 5 appearance and sizes are not more than bearing pin 7 external diameters, and bolt 4 passes through hole and is being connected with nut 5.Described nut is welded on an end of bearing pin, and the central lines of the center line of nut 5 and bearing pin 7.When C type frame 3 was highly not enough, the free end pad of C type frame 3 added movable cushion block 6 again during use.
During use, earlier nut 5 is welded on bearing pin 7 end faces center, the through hole that passes on the drawing frame 1 with bolt 4 is connected with nut 5 again.C type frame 3 is enclosed within the side that drawing frame 1 has through hole, is placed on the apparatus body.Jack 2 is placed between C type frame 3 upper surfaces and the drawing frame 1, and jack 2 bases are placed on the upper surface of C type frame 3, and the push rod of jack 2 withstands on the no through hole one side inner surface of drawing frame 1.Under the effect of jack 2, because C type frame 3 is pressed on the apparatus body, can not displacement, at this moment have only the drawing frame 1 can displacement, it is mobile outside apparatus body to drive bolt 4, nut 5, bearing pin 7 by drawing frame 1.After drawing frame 1 moves a stroke, can below C type frame, add the cushion block 6 of uniform thickness, or change corresponding C type frame 3, press jack 2 again, till extracting bearing pin 7.
Above-mentioned explanation is not to be limitation of the present invention, and the present invention also is not limited in above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (6)
1. a bearing pin is extracted specific purpose tool, comprise the nut that is fixed on the bearing pin, and the drawing mechanism that cooperates with nut, it is characterized in that: described drawing mechanism comprises drawing frame and the C type frame that connects together mutually, have through hole on the drawing frame with on the sidewall of C type frame socket place, be penetrated with nut bolt in the through hole; In the described drawing frame hydraulic jack is installed, jack is arranged between drawing frame and the C type frame.
2. bearing pin as claimed in claim 1 is extracted specific purpose tool, it is characterized in that: described jack axis and bearing pin axis are point-blank.
3. bearing pin as claimed in claim 2 is extracted specific purpose tool, it is characterized in that: the end of thread of described bolt and described nut are connected, and the maximum outside diameter of described nut is less than the bearing pin external diameter.
4. bearing pin as claimed in claim 3 is extracted specific purpose tool, it is characterized in that: described nut is welded on an end of bearing pin, and the central lines of the center line of nut and bearing pin.
5. bearing pin as claimed in claim 1 is extracted specific purpose tool, it is characterized in that: described drawing frame and C type frame are rectangle frame, adopt steel plate to be welded.
6. bearing pin as claimed in claim 1 is extracted specific purpose tool, it is characterized in that: the free end of described C type frame is provided with movable cushion block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102409704A CN103286550A (en) | 2013-06-18 | 2013-06-18 | Tool for pulling out pin shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102409704A CN103286550A (en) | 2013-06-18 | 2013-06-18 | Tool for pulling out pin shafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103286550A true CN103286550A (en) | 2013-09-11 |
Family
ID=49088360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102409704A Pending CN103286550A (en) | 2013-06-18 | 2013-06-18 | Tool for pulling out pin shafts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103286550A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097066A (en) * | 2017-05-24 | 2017-08-29 | 徐工集团工程机械有限公司 | Location nut provision for disengagement |
| CN108555825A (en) * | 2018-06-20 | 2018-09-21 | 国家电网有限公司 | Pin extracting apparatus |
| CN113927803A (en) * | 2021-09-30 | 2022-01-14 | 中复连众(包头)复合材料有限公司 | Wind power blade root embedded bolt sleeve positioning bolt drawing tool and operation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2417969Y (en) * | 2000-01-31 | 2001-02-07 | 上海宝钢集团公司 | Hydraulic pin-pulling-out device |
| CN201931268U (en) * | 2011-01-11 | 2011-08-17 | 淮南矿业(集团)有限责任公司 | Pin pulling equipment |
| US20120066878A1 (en) * | 2010-09-16 | 2012-03-22 | Laurier Larouche | Pin extraction tool |
| CN203266060U (en) * | 2013-06-18 | 2013-11-06 | 济钢集团有限公司 | Tool specially used for pulling out pin shaft |
-
2013
- 2013-06-18 CN CN2013102409704A patent/CN103286550A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2417969Y (en) * | 2000-01-31 | 2001-02-07 | 上海宝钢集团公司 | Hydraulic pin-pulling-out device |
| US20120066878A1 (en) * | 2010-09-16 | 2012-03-22 | Laurier Larouche | Pin extraction tool |
| CN201931268U (en) * | 2011-01-11 | 2011-08-17 | 淮南矿业(集团)有限责任公司 | Pin pulling equipment |
| CN203266060U (en) * | 2013-06-18 | 2013-11-06 | 济钢集团有限公司 | Tool specially used for pulling out pin shaft |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097066A (en) * | 2017-05-24 | 2017-08-29 | 徐工集团工程机械有限公司 | Location nut provision for disengagement |
| CN108555825A (en) * | 2018-06-20 | 2018-09-21 | 国家电网有限公司 | Pin extracting apparatus |
| CN113927803A (en) * | 2021-09-30 | 2022-01-14 | 中复连众(包头)复合材料有限公司 | Wind power blade root embedded bolt sleeve positioning bolt drawing tool and operation method thereof |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130911 |