CN202292057U - Built-in hydraulic automatic pin pulling device - Google Patents
Built-in hydraulic automatic pin pulling device Download PDFInfo
- Publication number
- CN202292057U CN202292057U CN 201120389851 CN201120389851U CN202292057U CN 202292057 U CN202292057 U CN 202292057U CN 201120389851 CN201120389851 CN 201120389851 CN 201120389851 U CN201120389851 U CN 201120389851U CN 202292057 U CN202292057 U CN 202292057U
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- CN
- China
- Prior art keywords
- pin
- piston rod
- pulling
- built
- pin pulling
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- Withdrawn - After Issue
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Abstract
The utility model discloses a built-in hydraulic automatic pin pulling device which comprises a supporting cylinder body, a pin pulling cylinder body, a piston, a supporting piston rod, a pin pulling piston rod, a bolt connector and a vibration prevention cover, wherein the supporting cylinder body and the pin pulling cylinder body are concentrically embedded and assembled; the supporting piston rod and the pin pulling piston rod are concentrically embedded and assembled; the pin pulling piston rod adopts the hollow design; and the bolt connector and the vibration prevention cover are arranged at the topof the pin pulling piston rod. The built-in hydraulic automatic pin pulling device has a reasonable structure and large pullin force, is convenient to use, and solves the problem in the prior art that the manual hammering is troublesome, time-consuming and labor-consuming and unsafe.
Description
Technical field
The utility model relates to the automatic pin pulling out device of a kind of built-in hydraulic pressure, is 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.
The utility model content
The purpose of the utility model provides the automatic pin pulling out device of a kind of built-in hydraulic pressure.
The purpose of the utility model realizes through following technical scheme:
The automatic pin pulling out device of the hydraulic pressure of the utility model 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.The shoring cylinder body and the cylinder cylinder body nested, concentric assembling of pulling pin, the 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.
Technical scheme by above-mentioned the utility model provides can be found out, the automatic pin pulling out device of the described built-in hydraulic pressure of the utility model is 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 sketch map of pulling pin;
Fig. 3 is the piston rod construction sketch map of pulling pin.
The specific embodiment
The automatic pin pulling out device of built-in hydraulic pressure of the utility model; 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 utility model is mainly used a kind of device that mine hydraulic bracket and main equipment alignment pin are extracted.The utlity model has following innovative 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 the automatic pin pulling out device of built-in hydraulic pressure:
During use, with the automatic pin pulling out device of built-in hydraulic pressure its centre-height of position adjustment according to the equipment bearing pin of dismantling, pressure oil gets into the cylinder of pulling pin from hydraulic fluid port 9 after the installation earlier; The piston rod 5 of under the effect of control oil, pulling pin stretches out, and reaches range and stops, and links up through 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 with institute and produces axial float, and bearing pin is become flexible, after remove vibration-proof cover 7; This moment, pressure oil got into shoring from hydraulic fluid port 10, and support piston bar 4 stretches out under the effect of control oil, guaranteed that the top of support piston bar 4 contacts with the equipment end face; And thrust is provided, after the fixation, support cylinder support piston bar 4 under the effect of control oil keeps original position; And the oil cylinder of pulling pin gets into the piston rod cavity of pulling pin from hydraulic fluid port 8 under the effect of control oil, and the piston rod 5 of pulling pin is shunk, and drives Bolt Connector 6 and shrinks; Bolt Connector 6 connects with bearing pin; Thereby under the effect of control oil pressure, can bearing pin be extracted, 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 accomplished.
The beneficial effect of the utility model is:
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; Be merely the preferable specific embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any technical staff who is familiar with the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection domain of the utility model.
Claims (4)
1. automatic pin pulling out device of built-in hydraulic pressure; It is characterized in that; The automatic pin pulling out device of said 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; Said shoring cylinder body and the said cylinder cylinder body nested, concentric assembling of pulling pin, said support piston bar and the said piston rod nested, concentric assembling of pulling pin, the said piston rod top of pulling pin is provided with said Bolt Connector.
2. the automatic pin pulling out device of built-in hydraulic pressure according to claim 1 is characterized in that the top of the said piston rod of pulling pin is provided with vibration-proof cover.
3. the automatic pin pulling out device of built-in hydraulic pressure according to claim 1 is characterized in that, the said piston rod of pulling pin adopts hollow design, can be used as oil circuit, saves the space.
4. the automatic pin pulling out device of built-in hydraulic pressure according to claim 1 is characterized in that, said piston rod and the said vibration-proof cover employing high-strength impact-resistant material of pulling pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120389851 CN202292057U (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 201120389851 CN202292057U (en) | 2011-10-14 | 2011-10-14 | Built-in hydraulic automatic pin pulling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202292057U true CN202292057U (en) | 2012-07-04 |
Family
ID=46361034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120389851 Withdrawn - After Issue CN202292057U (en) | 2011-10-14 | 2011-10-14 | Built-in hydraulic automatic pin pulling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202292057U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102416560A (en) * | 2011-10-14 | 2012-04-18 | 泰安力博机电科技有限公司 | Built-in hydraulic automatic pin pulling device |
| CN106837400A (en) * | 2017-03-23 | 2017-06-13 | 枣庄矿业（集团）有限责任公司柴里煤矿 | Pin transposing device is torn in hydraulic control open |
| CN108687712A (en) * | 2018-06-19 | 2018-10-23 | 枣庄凯尔实业有限公司 | A kind of mining bracket air pressure pin removal |
-
2011
- 2011-10-14 CN CN 201120389851 patent/CN202292057U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102416560A (en) * | 2011-10-14 | 2012-04-18 | 泰安力博机电科技有限公司 | Built-in hydraulic automatic pin pulling device |
| CN102416560B (en) * | 2011-10-14 | 2013-10-09 | 力博重工科技股份有限公司 | Built-in hydraulic automatic pin pulling device |
| CN106837400A (en) * | 2017-03-23 | 2017-06-13 | 枣庄矿业（集团）有限责任公司柴里煤矿 | Pin transposing device is torn in hydraulic control open |
| CN108687712A (en) * | 2018-06-19 | 2018-10-23 | 枣庄凯尔实业有限公司 | A kind of mining bracket air pressure pin removal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120704 Effective date of abandoning: 20131009 |
|
| RGAV | Abandon patent right to avoid regrant |