CN102242636A - Single hydraulic pillar - Google Patents
Single hydraulic pillar Download PDFInfo
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- CN102242636A CN102242636A CN2010101815444A CN201010181544A CN102242636A CN 102242636 A CN102242636 A CN 102242636A CN 2010101815444 A CN2010101815444 A CN 2010101815444A CN 201010181544 A CN201010181544 A CN 201010181544A CN 102242636 A CN102242636 A CN 102242636A
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- piston
- cover
- circular groove
- upper cylinder
- cylinder cover
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Abstract
The invention relates to a single hydraulic pillar which is characterized in that an annular circular groove is arranged on an excircle near the bottom of a piston; a guide ring is installed in the annular circular groove; the bottom of the piston is provided with a through hole at a proper position at the upper part of the annular circular groove; a top sealing cover is installed at an inner opening part on the top of the piston through a sealing ring; a support is installed on an excircle on the top of the piston through an inner circle at the bottom of the piston; the top sealing cover, the support and the piston are fixedly installed together through a fixed bolt; two concentric circles with different diameters are arranged in the middle of an upper cylinder cover; the upper cylinder cover is installed on the excircle at the upper part of the piston through the inner circle and the sealing ring at the upper part of the piston; an upper opening part of a cylinder body is installed and located together with the inner circle at the lower part of the upper cylinder cover through the sealing ring and a locating element; two ends of a reset spring are respectively hung on a hook at the bottom of the top sealing cover and a hook in the middle of a bottom cover; and the bottom cover is installed and fixed at the bottom of the cylinder body through a sealing piece and the locating element.
Description
Technical field
The present invention relates to a kind of hydraulic prop, particularly a kind of monomer-type hydraulic prop belongs to colliery safeguard technical field.
Background technology
The monomer-type hydraulic prop is that a kind of supporting protection equipment that has a large capacity and a wide range is used in the down-hole, mine, at present, this kind monomer-type hydraulic prop mainly is by cylinder body, piston, upper cylinder cover, guiding valve, bearing, part such as seal cover and potted component is formed, wherein, in the piston structure of this kind monomer-type hydraulic prop, the guide ring that play the guiding role is installed in the groove of stepped ramp type cylinder of piston base projection, like this, the cylindrical of piston just has to make different two sections of diameter, and this not only causes raw-material serious waste, simultaneously, keep higher axiality owing to must guarantee two sections different cylindricals of diameter, so, have complex structure, complex technical process, precision is difficult to guarantee, in addition, owing to can't guarantee desired precision, reduced the application life of hydraulic prop; In addition, in the structure of above-mentioned monomer-type hydraulic prop, upper cylinder cover and guiding valve are made whole form of structure, and also there is complex structure in the form of this structure, complex technical process, the defective that manufacturing cost is higher, in addition, because the element of the guiding valve criteria of right and wrong of this kind structure, also exist interchangeability poor, the defective of maintain and replace inconvenience.
Summary of the invention
The objective of the invention is to: at the existing above-mentioned defective of existing monomer-type hydraulic prop, the present invention proposes a kind of monomer-type hydraulic prop that can effectively overcome above-mentioned defective.
The present invention realizes that the technical scheme that above-mentioned purpose adopts is: a kind of monomer-type hydraulic prop, it is by bearing, the top seal lid, set bolt, piston, upper cylinder cover, cylinder body, bottom, back-moving spring, the board-like guiding valve of standard, handle is formed, it is characterized in that: described piston is the structure of hollow cylinder, circular groove near open loop shape on the cylindrical of piston base, described guide ring is installed in this annular circular groove, the appropriate location, circular groove top that described piston base is in annular has through hole b, described top seal lid is installed in the internal orifice position of top land by sealing ring, described bearing is installed in above the cylindrical of top land by circle in its bottom, by set bolt top seal is covered, bearing, piston installs and fixes together securely, described cylinder body is the structure of a hollow cylindrical, have the concentric unit circle of two different-diameters in the middle of the described upper cylinder cover, it is identical with the outside diameter of cylinder body wherein to be in the bottom diameter of a circle; It is identical with the outside diameter of piston to be in the top diameter of a circle, described upper cylinder cover is installed on the top cylindrical of piston by circle, sealing ring in its top, the position suitable for reading of described cylinder body by circle installing and locating in the bottom of sealing ring, setting element and upper cylinder cover together, the two ends of described back-moving spring are hung in the hook of top seal lid bottom and above the hook in the middle of the bottom, described bottom is fixed on the bottom of cylinder body by seal and setting element.
Produce two different planes in the outside of upper cylinder cover, on these two planes, install and fix board-like guiding valve of standard and handle respectively, wherein the oil inlet and outlet position of the board-like guiding valve of standard by be manufactured on the gap between hole a on the upper cylinder cover, outside piston and the inboard wall of cylinder block, the hole b of piston bottom communicates with the inside of cylinder body.
Operating principle of the present invention is: outside hydraulic medium is by under the control of the board-like guiding valve of standard, by the gap between the oil inlet and outlet position of the board-like guiding valve of standard, hole a, outside piston and the inboard wall of cylinder block on the upper cylinder cover, the hole b of piston bottom, enter cylinder body, under the effect of hydraulic medium, the pulling force that piston overcomes back-moving spring begins to rise, thereby back is lived by bearing, after hours, control pressure release by the board-like guiding valve of standard, under the effect of the pulling force of back-moving spring, with piston reset.
Beneficial effect: piston of the present invention is owing to be the cylinder that a cylindrical equates, so, compare with traditional technology, have simply, the technology letter is complicated, and precision guarantees easily, makes the application life of hydraulic prop remarkable; In addition, install, can overcome prior art effectively and exist interchangeability poor, the defective of maintain and replace inconvenience because upper cylinder cover and guiding valve are separated manufacturing.
Description of drawings
Fig. 1 is a structure principle chart of the present invention;
Shown in the figure: 1, bearing; 2, top seal lid; 3, set bolt; 4, piston; 5, upper cylinder cover; 6, cylinder body; 7, bottom; 8, back-moving spring; 9, the board-like guiding valve of standard; 10, guide ring; 11, handle.
The specific embodiment
Piston (4) is fabricated to the structure of hollow cylinder, the circular groove of open loop shape on the cylindrical bottom piston (4), guide ring (10) is installed in this annular circular groove, hole b is opened in the appropriate location, circular groove top that is in annular in piston (4) bottom, top seal lid (2) is installed in the internal orifice position at piston (4) top by sealing ring, bearing (1) is installed in above the cylindrical at piston (4) top by circle in its bottom, and with set bolt (3) with top seal lid (2), bearing (1), piston (4) installs and fixes together securely, cylinder body (6) is manufactured the structure of hollow cylindrical, upper cylinder cover (5) is passed through circle in its top, sealing ring is installed on the top cylindrical of piston (4), sealing ring is passed through at the position suitable for reading of cylinder body (6), the circle installing and locating together in the bottom of setting element and upper cylinder cover (5), the two ends of back-moving spring (8) are hung in the hook of top seal lid (2) bottom and above the hook in the middle of the bottom (7), bottom (7) are fixed on the bottom of cylinder body (6) by seal and setting element; Produce two different planes in the outside of upper cylinder cover (5), on these two planes, install and fix board-like guiding valve of standard (9) and handle (11) respectively, when mounted, the gap between the oil inlet and outlet portion, the hole a on the upper cylinder cover (5), outside piston that guarantee the board-like guiding valve of standard (9) and the inboard wall of cylinder block, the hole b of piston bottom communicate with the inside of cylinder body.
Claims (2)
1. monomer-type hydraulic prop, it is made up of bearing, top seal lid, set bolt, piston, upper cylinder cover, cylinder body, bottom, back-moving spring, the board-like guiding valve of standard, handle, it is characterized in that: described piston (4) is the structure of hollow cylinder, near the circular groove of open loop shape on the cylindrical of piston base, guide ring (10) is installed in this annular circular groove;
2. according to claims 1 described a kind of monomer-type hydraulic prop, it is characterized in that: on the outer side plane of upper cylinder cover (5), the board-like guiding valve of the standard that installs and fixes (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101815444A CN102242636A (en) | 2010-05-11 | 2010-05-11 | Single hydraulic pillar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101815444A CN102242636A (en) | 2010-05-11 | 2010-05-11 | Single hydraulic pillar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102242636A true CN102242636A (en) | 2011-11-16 |
Family
ID=44960860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101815444A Pending CN102242636A (en) | 2010-05-11 | 2010-05-11 | Single hydraulic pillar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102242636A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894832A (en) * | 2017-04-25 | 2017-06-27 | 辽宁工程技术大学 | A kind of metal cutting formula energy-absorbing erosion control hydraulic vertical prop |
| CN110700866A (en) * | 2019-11-07 | 2020-01-17 | 徐州众信矿业科技有限公司 | Mining hydraulic prop |
-
2010
- 2010-05-11 CN CN2010101815444A patent/CN102242636A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894832A (en) * | 2017-04-25 | 2017-06-27 | 辽宁工程技术大学 | A kind of metal cutting formula energy-absorbing erosion control hydraulic vertical prop |
| CN110700866A (en) * | 2019-11-07 | 2020-01-17 | 徐州众信矿业科技有限公司 | Mining hydraulic prop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111116 |