CN104594934A - Hydraulic bracket side protecting plate pushing device - Google Patents
Hydraulic bracket side protecting plate pushing device Download PDFInfo
- Publication number
- CN104594934A CN104594934A CN201510030278.8A CN201510030278A CN104594934A CN 104594934 A CN104594934 A CN 104594934A CN 201510030278 A CN201510030278 A CN 201510030278A CN 104594934 A CN104594934 A CN 104594934A
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- China
- Prior art keywords
- hole
- cylinder barrel
- piston
- cylinder
- piston rod
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- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000000428 dust Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Actuator (AREA)
Abstract
The invention discloses a hydraulic bracket side protecting plate pushing device. The interior of a cylinder is provided with a through cavity; a first through hole and a second through hole are formed in the side wall of the cylinder; a first joint base is arranged at the first through hole; a second joint base is arranged at the second through hole; a cylinder cover is welded at one end of the cylinder; one end, provided with a piston, of a piston rod extends into the through cavity from the other end of the cylinder; the piston is positioned between the first through hole and the second through hole; one end, positioned at the exterior of the cylinder, of the piston rod is provided with a support part; a limiting sleeve is arranged at the side wall of the piston rod; the limiting sleeve is arranged near the support part of the piston rod, and a limiting part of the limiting sleeve is abutted against the end part of the cylinder; a first sealing piece is arranged between the piston and the cylinder, and a second sealing sleeve is arranged between the limiting sleeve and the piston rod. The hydraulic bracket side protecting plate pushing device has the advantages that the integral structure is compact, the processing is easy, the mechanical structure is stable and reliable in the repeated use process, the leakage of a working medium is avoided, and the sealing property is good.
Description
Technical field
The present invention relates to hydraulic support technical field, particularly relate to a kind of hydraulic bracket side guard plate thrust unit.
Background technology
Hydraulic support is the important component part of winning equipment, is used for controlling the mine pressure of face.The top board of work plane can reliably and effectively be made and control to hydraulic support, and isolation goaf, prevents spoil from entering actual mining region, affect the normal work of mining device, and the life security of safeguard work personnel to greatest extent.Side guard board is the important composition of hydraulic support, and be arranged on back timber and side guard beam, anti-leak-stopping cash enters working region, ensures and produces and life security.Side guard board needs to move according to environment for use in the course of the work, and therefore have high requirement to the travel mechanism of side guard board, it has material impact to the stressed of whole support and stability.
Summary of the invention
For solving the technical problem existed in background technology, the present invention proposes a kind of hydraulic bracket side guard plate thrust unit, has overall structure, and Stability Analysis of Structures is reliable, good seal performance.
A kind of hydraulic bracket side guard plate thrust unit that the present invention proposes, comprising: cylinder cap, cylinder barrel, piston component;
Cylinder barrel inside has runs through cavity and two ends have opening, cylinder barrel sidewall is provided with the first through hole and the second through hole, first through hole and the second through hole are arranged along cylinder barrel axially spaced-apart, the first plinth is provided with in the first through hole, first plinth by the first through hole with run through cavity and be communicated with, be provided with the second plinth in the second through hole, the second plinth by the second through hole with run through cavity and be communicated with;
Piston component comprises piston rod, piston and stop collar, what piston rod was positioned at cylinder barrel runs through cavity, and one end is stretched out from the opening of cylinder barrel one end, piston rod is positioned at the outside one end of cylinder barrel and is provided with support portion, piston is fixed on the sidewall of piston rod, the first back-up ring is provided with between piston and piston rod, piston cylinder barrel to run through in cavity and between the first through hole and the second through hole, the first seal is provided with between piston and inner wall of cylinder, stop collar is enclosed within piston rod outside, it is arranged near support portion, stop collar is positioned at cylinder barrel and fixes with cylinder barrel, the second seal is provided with between stop collar and piston rod, the second back-up ring is provided with between stop collar and inner wall of cylinder,
Cylinder cap sealing is fixed on cylinder barrel one end away from the support portion of piston rod;
Cylinder cap is L1 to the distance of stop collar, and the 3.5-4 of internal diameter of cylinder to be L2, L1 be L2 doubly.
Preferably, the first seal comprises hill-shaped seal ring and is positioned at two piston guide rings of hill-shaped seal ring both sides.
Preferably, the second seal comprises flower bud shape sealing ring and guide ring.
Preferably, be also provided with dust ring between stop collar and piston rod, dust ring is arranged near support portion.
Preferably, cylinder cap is welded and fixed the end of cylinder barrel.
In the present invention, the hydraulic bracket side guard plate thrust unit proposed, cylinder barrel inside has runs through cavity, cylinder barrel sidewall is provided with the first through hole and the second through hole, the first plinth is provided with in the first through hole, the second plinth is provided with in the second through hole, cylinder barrel one end welding cylinder cap, one end that piston rod is provided with piston is stretched into from the cylinder barrel other end and is run through in cavity, piston is between the first through hole and the second through hole, piston rod is positioned at the outside one end of cylinder barrel and is provided with support portion, piston rod sidewall is provided with stop collar, stop collar is near the support portion of piston rod and the limiting section support of stop collar leans on cylinder barrel end, the first seal is provided with between piston and cylinder barrel, the second seal is provided with between stop collar and piston rod.By the hydraulic bracket side guard plate thrust unit of above-mentioned optimal design, compact overall structure, be easy to processing, in cylinder barrel, working media flow spatial design is reasonable, in Reusability process, frame for movement is reliable and stable, and working media does not leak, also can prevent external dust impurity from entering in cylinder barrel and damage be caused to each parts, good seal performance.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of hydraulic bracket side guard plate thrust unit that the present invention proposes.
Detailed description of the invention
As shown in Figure 1, Fig. 1 is the structural representation of a kind of hydraulic bracket side guard plate thrust unit that the present invention proposes.
With reference to Fig. 1, a kind of hydraulic bracket side guard plate thrust unit that the present invention proposes, comprising: cylinder cap 1, cylinder barrel 2, piston component;
Cylinder barrel 2 inside has runs through cavity and two ends have opening, cylinder barrel 2 sidewall is provided with the first through hole and the second through hole, first through hole and the second through hole are arranged along cylinder barrel 2 axially spaced-apart, the first plinth 21 is provided with in the first through hole, first plinth 21 by the first through hole with run through cavity and be communicated with, be provided with in the second through hole the second plinth 22, second plinth 22 by the second through hole with run through cavity and be communicated with;
Piston component comprises piston rod 4, piston 3 and stop collar 5, what piston rod 4 was positioned at cylinder barrel 2 runs through cavity, and one end is stretched out from the opening of cylinder barrel 2 one end, piston rod 4 is positioned at the outside one end of cylinder barrel 2 and is provided with support portion 41, piston 3 is fixed on the sidewall of piston rod 4, the first back-up ring 61 is provided with between piston 3 and piston rod 4, piston 3 cylinder barrel 2 to run through in cavity and between the first through hole and the second through hole, the first seal is provided with between piston 3 and cylinder barrel 2 inwall, first seal comprises hill-shaped seal ring 71 and is positioned at two piston guide rings 72 of hill-shaped seal ring 71 both sides, it is outside that stop collar 5 is enclosed within piston rod 4, it is arranged near support portion 41, stop collar 5 is positioned at cylinder barrel 2 and fixes with cylinder barrel 2, the second seal and dust ring 9 is provided with between stop collar 5 and piston rod 4, second seal comprises flower bud shape sealing ring 81 and guide ring 82, dust ring 9 is arranged near support portion 41, the second back-up ring 62 is provided with between stop collar 5 and cylinder barrel 2 inwall,
Cylinder cap 1 is welded on cylinder barrel 2 one end away from the support portion of piston rod 4, and seals fixing between cylinder cap 1 and cylinder barrel 2.
In specific design, the distance of cylinder cap 1 to stop collar 5 is L1, and the 3.5-4 of internal diameter of cylinder to be L2, L1 be L2 doubly.
In the hydraulic bracket side guard plate thrust unit course of work of the present embodiment, when working media flows into cylinder barrel from the first plinth, when working media enters the space between piston and cylinder cap, promote cylinder cap to move to away from piston direction, working media simultaneously between piston and stop collar flows out from the second plinth, thus band moveable cylinder moves to the direction, support portion away from piston rod, carry out promotion stroke, when working media flows into cylinder barrel from the second plinth, when working media enters the space between piston and stop collar, promote piston to move to cylinder cap direction, working media simultaneously between piston and cylinder cap flows out from the first plinth, thus drive piston rod to advance to cylinder cap direction, carry out return stroke, realize the hydraulic drive course of work.
In the present embodiment, the hydraulic bracket side guard plate thrust unit proposed, cylinder barrel inside has runs through cavity, cylinder barrel sidewall is provided with the first through hole and the second through hole, the first plinth is provided with in the first through hole, the second plinth is provided with in the second through hole, cylinder barrel one end welding cylinder cap, one end that piston rod is provided with piston is stretched into from the cylinder barrel other end and is run through in cavity, piston is between the first through hole and the second through hole, piston rod is positioned at the outside one end of cylinder barrel and is provided with support portion, piston rod sidewall is provided with stop collar, stop collar is near the support portion of piston rod and the limiting section support of stop collar leans on cylinder barrel end, the first seal is provided with between piston and cylinder barrel, the second sealing shroud is provided with between stop collar and piston rod.By the hydraulic bracket side guard plate thrust unit of above-mentioned optimal design, compact overall structure, be easy to processing, in cylinder barrel, working media flow spatial design is reasonable, in Reusability process, frame for movement is reliable and stable, and working media does not leak, also can prevent external dust impurity from entering in cylinder barrel and damage be caused to each parts, good seal performance.
In a specific embodiment, internal diameter of cylinder is 63mm, and piston rod footpath is 45mm, and piston stroke is 170mm, and after testing, in its course of work, cylinder cylinder pressure can reach 31.5Mpa, and thrust can reach 98.2KN, and pulling force can reach 48.1KN.
Between each parts, all seal is set, greatly improves sealing performance, ensure that in the course of work, working media does not leak, ensure that working environment is reliable.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (5)
1. a hydraulic bracket side guard plate thrust unit, is characterized in that, comprising: cylinder cap (1), cylinder barrel (2), piston component;
Cylinder barrel (2) inside has runs through cavity and two ends have opening, cylinder barrel (2) sidewall is provided with the first through hole and the second through hole, first through hole and the second through hole are arranged along cylinder barrel (2) axially spaced-apart, the first plinth (21) is provided with in the first through hole, first plinth (21) by the first through hole with run through cavity and be communicated with, be provided with the second plinth (22) in the second through hole, the second plinth (22) by the second through hole with run through cavity and be communicated with;
Piston component comprises piston rod (4), piston (3) and stop collar (5), what piston rod (4) was positioned at cylinder barrel (2) runs through cavity, and one end is stretched out from the opening of cylinder barrel (2) one end, piston rod (4) is positioned at cylinder barrel (2) outside one end and is provided with support portion (41), piston (3) is fixed on the sidewall of piston rod (4), the first back-up ring (61) is provided with between piston (3) and piston rod (4), piston (3) be positioned at cylinder barrel (2) run through cavity and between the first through hole and the second through hole, the first seal is provided with between piston (3) and cylinder barrel (2) inwall, it is outside that stop collar (5) is enclosed within piston rod (4), it is arranged near support portion (41), stop collar (5) is positioned at cylinder barrel (2) and fixes with cylinder barrel (2), the second seal is provided with between stop collar (5) and piston rod (4), the second back-up ring (62) is provided with between stop collar (5) and cylinder barrel (2) inwall,
Cylinder cap (1) sealing is fixed on cylinder barrel (2) one end away from the support portion of piston rod (4);
Cylinder cap (1) is L1 to the distance of stop collar (5), and the 3.5-4 of internal diameter of cylinder to be L2, L1 be L2 doubly.
2. hydraulic bracket side guard plate thrust unit according to claim 1, is characterized in that, the first seal comprises hill-shaped seal ring (71) and is positioned at two piston guide rings (72) of hill-shaped seal ring (71) both sides.
3. hydraulic bracket side guard plate thrust unit according to claim 1, is characterized in that, the second seal comprises flower bud shape sealing ring (81) and guide ring (82).
4. hydraulic bracket side guard plate thrust unit according to claim 1, it is characterized in that, also be provided with dust ring (9) between stop collar (5) and piston rod (4), dust ring (9) is arranged near support portion (41).
5. hydraulic bracket side guard plate thrust unit according to claim 1, is characterized in that, cylinder cap (1) is welded and fixed the end of cylinder barrel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510030278.8A CN104594934B (en) | 2015-01-21 | 2015-01-21 | A kind of hydraulic bracket side guard plate promotes device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510030278.8A CN104594934B (en) | 2015-01-21 | 2015-01-21 | A kind of hydraulic bracket side guard plate promotes device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104594934A true CN104594934A (en) | 2015-05-06 |
| CN104594934B CN104594934B (en) | 2016-06-29 |
Family
ID=53120943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510030278.8A Expired - Fee Related CN104594934B (en) | 2015-01-21 | 2015-01-21 | A kind of hydraulic bracket side guard plate promotes device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104594934B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1927768B2 (en) * | 1969-05-31 | 1977-10-20 | Hippel Geb. Weiss, Sophie Von, 7777 Salem | Two part mine stowing shield - has actuator cylinders for two parts and bottom cylinder supported on floor member |
| CN2767731Y (en) * | 2005-01-18 | 2006-03-29 | 无锡市华通液压气动制造有限公司 | Return-stroke two-stage hydraulic cylinder |
| CN201053326Y (en) * | 2007-05-31 | 2008-04-30 | 宁夏西北煤矿机械制造有限责任公司 | Inner support conjuncted self-walking type caving coal hydraulic support side-pushing device |
| CN201184336Y (en) * | 2008-04-14 | 2009-01-21 | 贾广生 | Hydraulic cylinder structure |
| CN102852540A (en) * | 2012-09-12 | 2013-01-02 | 淮南矿业(集团)有限责任公司 | Protector |
| CN202731959U (en) * | 2011-12-31 | 2013-02-13 | 鄂尔多斯市巨鼎煤机制造有限责任公司 | Side protecting mechanism of hydraulic support for thin coal seam |
| CN203035638U (en) * | 2012-11-30 | 2013-07-03 | 江苏恒立高压油缸股份有限公司 | Mechanical self-locking hydraulic oil cylinder |
| CN103423229A (en) * | 2013-07-16 | 2013-12-04 | 蚌埠市行星工程机械有限公司 | Double-barrel oil cylinder |
| CN203682981U (en) * | 2014-01-06 | 2014-07-02 | 卡特彼勒（郑州）有限公司 | Double-side type hydraulic jack and hydraulic support |
| CN204099333U (en) * | 2014-09-04 | 2015-01-14 | 山东蓬翔汽车有限公司 | A kind of double-action single-stage cylinder |
| CN204419222U (en) * | 2015-01-21 | 2015-06-24 | 巨隆液压设备(集团)有限公司 | A kind of hydraulic bracket side guard plate thrust unit |
-
2015
- 2015-01-21 CN CN201510030278.8A patent/CN104594934B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1927768B2 (en) * | 1969-05-31 | 1977-10-20 | Hippel Geb. Weiss, Sophie Von, 7777 Salem | Two part mine stowing shield - has actuator cylinders for two parts and bottom cylinder supported on floor member |
| CN2767731Y (en) * | 2005-01-18 | 2006-03-29 | 无锡市华通液压气动制造有限公司 | Return-stroke two-stage hydraulic cylinder |
| CN201053326Y (en) * | 2007-05-31 | 2008-04-30 | 宁夏西北煤矿机械制造有限责任公司 | Inner support conjuncted self-walking type caving coal hydraulic support side-pushing device |
| CN201184336Y (en) * | 2008-04-14 | 2009-01-21 | 贾广生 | Hydraulic cylinder structure |
| CN202731959U (en) * | 2011-12-31 | 2013-02-13 | 鄂尔多斯市巨鼎煤机制造有限责任公司 | Side protecting mechanism of hydraulic support for thin coal seam |
| CN102852540A (en) * | 2012-09-12 | 2013-01-02 | 淮南矿业(集团)有限责任公司 | Protector |
| CN203035638U (en) * | 2012-11-30 | 2013-07-03 | 江苏恒立高压油缸股份有限公司 | Mechanical self-locking hydraulic oil cylinder |
| CN103423229A (en) * | 2013-07-16 | 2013-12-04 | 蚌埠市行星工程机械有限公司 | Double-barrel oil cylinder |
| CN203682981U (en) * | 2014-01-06 | 2014-07-02 | 卡特彼勒（郑州）有限公司 | Double-side type hydraulic jack and hydraulic support |
| CN204099333U (en) * | 2014-09-04 | 2015-01-14 | 山东蓬翔汽车有限公司 | A kind of double-action single-stage cylinder |
| CN204419222U (en) * | 2015-01-21 | 2015-06-24 | 巨隆液压设备(集团)有限公司 | A kind of hydraulic bracket side guard plate thrust unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104594934B (en) | 2016-06-29 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20170121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |