CN102416560B - Built-in hydraulic automatic pin pulling device - Google Patents
Built-in hydraulic automatic pin pulling device Download PDFInfo
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- CN102416560B CN102416560B CN 201110310420 CN201110310420A CN102416560B CN 102416560 B CN102416560 B CN 102416560B CN 201110310420 CN201110310420 CN 201110310420 CN 201110310420 A CN201110310420 A CN 201110310420A CN 102416560 B CN102416560 B CN 102416560B
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Abstract
The invention discloses a built-in hydraulic automatic pin pulling device, which comprises a supporting cylinder body, a pin pulling cylinder body, a piston, a piston supporting rod, a pin pulling piston rod, a bolt connector and an anti-vibration cover. The supporting cylinder body and the pin pulling cylinder body are assembled in a concentric nesting manner, the piston supporting rod is assembled with the pin pulling piston rod in a concentric nesting manner, the pin pulling piston rod is hollow, and the bolt connector and the anti-vibration cover are arranged at the top of the pin pullingpiston rod. The built-in hydraulic automatic pin pulling device is reasonable in structure, convenient to use and high in tensioning force, and solves the problems of taking a lot of trouble, wastingtime and labor and producing insecurity in conventional manual hammering.
Description
Technical field
The present invention relates to the automatic pin pulling out device of a kind of built-in hydraulic pressure, be particularly useful for extracting of mine hydraulic bracket and main equipment alignment pin.
Background technology
The coal-face hydraulic support relies on highly pressurised liquid, column and corresponding power jack to realize crane, pushing and sliding and move four elemental motions of frame, and the connection of each moving-member adopts bearing pin to connect more.Because large hydraulic support volume weight is bigger, can't go into the well on the whole, therefore must go into the well on the split ability.So just relate to the various connecting link pin work on the dismounting hydraulic support, some bearing pins are bigger, and remove relatively effort through long-term use.Cause the maintenance work task of support to increase the weight of thus, this has brought very big labour intensity certainly will for the maintenance work of hydraulic pressure support and maintenance, and operating safety factor is not high yet.
Summary of the invention
The purpose of this invention is to provide the automatic pin pulling out device of a kind of built-in hydraulic pressure.
The objective of the invention is to be achieved through the following technical solutions:
The automatic pin pulling out device of hydraulic pressure of the present invention comprises the shoring cylinder body, the cylinder cylinder body of pulling pin, piston, support piston bar, the piston rod of pulling pin, Bolt Connector and vibration-proof cover.Shoring cylinder body and the cylinder cylinder body nested, concentric assembling of pulling pin, support piston bar and the piston rod nested, concentric assembling of pulling pin, the piston rod of pulling pin adopts hollow design, and the piston rod top of pulling pin is provided with Bolt Connector, vibration-proof cover.
As seen from the above technical solution provided by the invention, the automatic pin pulling out device of built-in hydraulic pressure of the present invention, rational in infrastructure, easy to use, solved that artificial hammering is bothersome, time-consuming, effort, unsafe problem, reduced workman's workload, reduced investment.
Description of drawings
Fig. 1 is the automatic pin pulling out device structural representation of built-in hydraulic pressure;
Fig. 2 is piston rod and the Bolt Connector syndeton schematic diagram of pulling pin;
Fig. 3 is the piston rod construction schematic diagram of pulling pin.
The specific embodiment
The automatic pin pulling out device of built-in hydraulic pressure of the present invention, the specific embodiment that it is preferable such as Fig. 1, Fig. 2, shown in Figure 3, the automatic pin pulling out device of built-in hydraulic pressure comprises shoring cylinder body 1, the cylinder cylinder body 2 of pulling pin, piston 3, support piston bar 4, the piston rod 5 of pulling pin, screwed union 6, vibration-proof cover 7.
The piston rod 5 of pulling pin adopts hollow design, can be used as the backhaul oil circuit of pulling pin, and saves the space.
Piston rod 5 tops of pulling pin are provided with vibration-proof cover 7, have reduced when pulling pin rapping apparatus to the impact of the piston rod 5 of pulling pin, and play the pull pin effect of piston rod 5 of protection, make rapping simultaneously and pull pin to combine, and make pin pulling out device have high efficiency.
The automatic pin pulling out device of the built-in hydraulic pressure of the present invention is mainly used a kind of device that mine hydraulic bracket and main equipment alignment pin are extracted.The present invention has following inventive point:
The automatic pin pulling out device of the built-in hydraulic pressure piston rod of pulling pin adopts hollow design, can be used as oil circuit, saves the space;
The piston rod top of pulling pin of the automatic pin pulling out device of built-in hydraulic pressure is provided with vibration-proof cover, has reduced the impact to the piston rod of pulling pin, and makes rapping and pull pin to combine, and has strengthened the validity of pin removal;
The automatic pin pulling out device vibration-proof cover of built-in hydraulic pressure, the piston rod of pulling pin adopt the high-strength impact-resistant material, have guaranteed that device has resistance to impact and high life.
Further specify below in conjunction with the operation principle of accompanying drawing to the automatic pin pulling out device of built-in hydraulic pressure:
During use, earlier the automatic pin pulling out device of built-in hydraulic pressure is adjusted its centre-height according to the position of dismounting equipment bearing pin, pressure oil enters the cylinder of pulling pin from hydraulic fluid port 9 after the installation, the piston rod 5 of pulling pin under the effect of control oil stretches out, reaching range stops, link up by Bolt Connector 6 and bearing pin, then the automatic pin pulling out device of hydraulic pressure is fixed, vibration-proof cover 7 is connected in the top of the piston rod 5 of pulling pin, connect rapping apparatus, under the effect of rapping apparatus periodicity active force, bearing pin is connected the piston rod of pulling pin and produces axial float with institute, make bearing pin loosening, after remove vibration-proof cover 7; This moment, pressure oil entered shoring from hydraulic fluid port 10, effect lower support piston rod 4 at control oil stretches out, the top that guarantees support piston bar 4 contacts with the equipment end face, and provide thrust, after the fixation, support cylinder keeps original position at the effect lower support piston rod 4 of control oil, and the oil cylinder of pulling pin enters the piston rod cavity of pulling pin from hydraulic fluid port 8 under the effect of control oil, the piston rod 5 of pulling pin is shunk, driving Bolt Connector 6 shrinks, Bolt Connector 6 connects with bearing pin, thereby bearing pin can be extracted under the effect of control oil pressure, hydraulic system fed control oil from oil-in 11 after bearing pin was extracted, and the support piston bar is contracted to original position, then bearing pin is removed, this moment, the whole process of pulling pin was finished.
The invention has the beneficial effects as follows:
Rational in infrastructure, easy to use, have automatic tension, function that tightening force is big;
Solved that artificial hammering is bothersome, time-consuming, effort, unsafe problem;
Reduce workman's workload, reduced investment;
Equipment is installed, makes easy, easy to operate, saves cost.
The above; only for the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (3)
1. automatic pin pulling out device of built-in hydraulic pressure, it is characterized in that, the automatic pin pulling out device of described built-in hydraulic pressure comprises the shoring cylinder body, the cylinder cylinder body of pulling pin, piston, support piston bar, the piston rod of pulling pin, Bolt Connector and vibration-proof cover, described shoring cylinder body and the described cylinder cylinder body nested, concentric assembling of pulling pin, described support piston bar and the described piston rod nested, concentric assembling of pulling pin, the described piston rod top of pulling pin is provided with described Bolt Connector, and the top of the described piston rod of pulling pin is provided with vibration-proof cover.
2. the automatic pin pulling out device of built-in hydraulic pressure according to claim 1 is characterized in that, the described piston rod of pulling pin adopts hollow design, can be used as oil circuit, saves the space.
3. the automatic pin pulling out device of built-in hydraulic pressure according to claim 1 is characterized in that, described piston rod and the described vibration-proof cover employing high-strength impact-resistant material of pulling pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110310420 CN102416560B (en) | 2011-10-14 | 2011-10-14 | Built-in hydraulic automatic pin pulling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110310420 CN102416560B (en) | 2011-10-14 | 2011-10-14 | Built-in hydraulic automatic pin pulling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102416560A CN102416560A (en) | 2012-04-18 |
| CN102416560B true CN102416560B (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110310420 Active CN102416560B (en) | 2011-10-14 | 2011-10-14 | Built-in hydraulic automatic pin pulling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102416560B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108687711A (en) * | 2018-06-19 | 2018-10-23 | 枣庄凯尔实业有限公司 | A kind of mining bracket hydraulic pin remover |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201120541Y (en) * | 2007-11-21 | 2008-09-24 | 石玉东 | Pumping unit horsehead pin extractor |
| CN201261121Y (en) * | 2008-10-08 | 2009-06-24 | 郑州四维机电设备制造有限公司 | Section type hydraulic pin-pulling-out device |
| CN101927429A (en) * | 2010-08-28 | 2010-12-29 | 淄博矿业集团有限责任公司 | Double-cylinder hydraulic pin remover |
| 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 |
| CN201940792U (en) * | 2010-09-14 | 2011-08-24 | 长沙中联重工科技发展股份有限公司 | Pin pulling device |
| CN202292057U (en) * | 2011-10-14 | 2012-07-04 | 力博重工科技股份有限公司 | Built-in hydraulic automatic pin pulling device |
-
2011
- 2011-10-14 CN CN 201110310420 patent/CN102416560B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201120541Y (en) * | 2007-11-21 | 2008-09-24 | 石玉东 | Pumping unit horsehead pin extractor |
| CN201261121Y (en) * | 2008-10-08 | 2009-06-24 | 郑州四维机电设备制造有限公司 | Section type hydraulic pin-pulling-out device |
| 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 |
| CN101927429A (en) * | 2010-08-28 | 2010-12-29 | 淄博矿业集团有限责任公司 | Double-cylinder hydraulic pin remover |
| CN201940792U (en) * | 2010-09-14 | 2011-08-24 | 长沙中联重工科技发展股份有限公司 | Pin pulling device |
| CN202292057U (en) * | 2011-10-14 | 2012-07-04 | 力博重工科技股份有限公司 | Built-in hydraulic automatic pin pulling device |
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| Publication number | Publication date |
|---|---|
| CN102416560A (en) | 2012-04-18 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 271411 Ningyang Economic Development Zone, Shandong Applicant after: Libo Heavy Machine Technology Co., Ltd. Address before: 271411 Ningyang Economic Development Zone, Shandong Applicant before: Tai'an Libo Mechanical Technology Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: TAI AN LIBO MECHANICAL TECHNOLOGY CO., LTD. TO: LIBO HEAVY MACHINE TECHNOLOGY CO., LTD. |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |