CN202001028U - Suspending single hydraulic prop with external guider - Google Patents
Suspending single hydraulic prop with external guider Download PDFInfo
- Publication number
- CN202001028U CN202001028U CN2011200907129U CN201120090712U CN202001028U CN 202001028 U CN202001028 U CN 202001028U CN 2011200907129 U CN2011200907129 U CN 2011200907129U CN 201120090712 U CN201120090712 U CN 201120090712U CN 202001028 U CN202001028 U CN 202001028U
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- China
- Prior art keywords
- cylinder body
- guide
- seal cover
- post
- ring
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- Expired - Fee Related
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Abstract
The utility model discloses a suspending single hydraulic prop with an external guider and relates to mining equipment. The hydraulic prop comprises an articulated head cover, a movable pillar, a movable pillar sealing cover, a cylinder body, a cylinder body sealing cover, a three-way valve, a three-way valve seat, a restoring spring and a base. The hydraulic prop is characterized in that: a guide sleeve is fixed at the upper end of the cylinder body, a guide sleeve sealing cover is fixed at the upper end of the guide sleeve, and the guide sleeve sealing cover is connected with the movable pillar through a guide ring II and a dust ring. The guide ring II is arranged on the guide sleeve sealing cover, a guide ring I is arranged on the cylinder body sealing cover, and the distance of the two guide rings is the guide distance of the movable pillar. When the movable pillar goes upward, the guide effect is good, the guide precision can be greatly improved, and the anti-bending capacity of the prop is effectively improved. A limit steel wire ring is arranged on the outer cylindrical surface of the lower end of the movable pillar; when the movable pillar goes upward, a limit platform of the cylinder body sealing cover can be bumped by the limit steel wire ring, the movable pillar stops going upward; therefore, the strength of the movable pillar is improved, and the safety factor of the movable pillar is also increased.
Description
Technical field
The utility model relates to a kind of mining equiment, is specifically related to the hydraulic Support with Suspending Hollow Plug that the coal-face supporting is used under the coal mine.
Background technology
The floated hydraulic prop that down-hole coal excavation face timbering is at present used, because oil cylinder inner wall is because of being sealing surface, oil cylinder inner wall does not need precision cutting to process, processing technology is simplified, and production efficiency is higher, and cost of manufacture is low, this structure is widely adopted, plays good effect.But, there is big gap between post and the casing wall owing to live, the post of living lead bad when moving up and down, and produces crookedly when causing post alive stressed, and post alive is easy to generate bending when stressed, influences supporting effect, has increased maintenance cost.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model will provide a kind of external guiding floated hydraulic prop, at the upper end of cylinder body fixed guide cover, and fairlead upper end fixed guide cover seal cover, on the fairlead seal cover guide ring is arranged, guide ring leads to the post of living.
The utility model is achieved by the following technical solution: the floated hydraulic prop of a kind of external guiding comprises: hinged top lid, the post of living, live column sealing lid, cylinder body, cylinder body sealing, triple-use valve, triple-use valve seat, back-moving spring and base; Described cylinder body seal cover lower end is fixing with the cylinder body upper end by connecting steel wire ring and sealing ring I, and cylinder body seal cover endoporus is connected with the post of living with sealing ring II by bad I of guiding; There is column sealing lid alive described post alive upper end, and described hinged top lid, post alive and the column sealing of living cover between the three and be fixed together by elastic cylindrical pin; Described triple-use valve is fixed on the cylinder body by the triple-use valve seat, and the lower end of cylinder body is provided with base; Between described base and the hinged top lid back-moving spring is arranged; It is characterized in that: at the upper end of cylinder body fixed guide cover, described fairlead upper end fixed guide cover seal cover, described fairlead seal cover is connected with the post of living with dust ring by guide ring II.
On the external cylindrical surface of described post alive lower end spacing steel wire ring is set, when the post of living was up, spacing steel wire ring was run into the limiting stand on the cylinder body seal cover, and living, post is up to be stopped.
Described fairlead lower end is connected with the cylinder body seal cover by seam.
Described fairlead upper end is connected with the fairlead seal cover by seam.
Weld between described fairlead and the cylinder body seal cover.
Weld between described fairlead and the fairlead seal cover.
Good effect of the present utility model is:
1, increase machining workload seldom, guiding accuracy significantly improves, and has effectively improved the bending resistance of pillar.
2, on fairlead seal cover and the cylinder body seal cover guide ring is arranged respectively, the distance between two guide rings is the guiding distance of the post of living, and guide effect is good.
3, live post when up, the spacing steel wire ring of lower end plays the up position-limiting action of post alive effectively, has both improved the intensity of post alive, has increased the safety factor of post alive again.
4, rational in infrastructure, easy to make, be convenient to promote the use of.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Accompanying drawing is the utility model structural representation.
Among the figure: 1, hinged top lid, 2, the column sealing lid of living, 3, the post of living, 4, the fairlead seal cover, 5, fairlead, 6, the cylinder body seal cover, 7, cylinder body, 8, the triple-use valve seat, 9, back-moving spring, 10, spacing steel wire ring, 11, base, 12, triple-use valve, 13, connect the steel wire ring, 14, sealing ring I, 15, guide ring I, 16, sealing ring II, 17, guide ring II, 18, dust ring, 19, sealing ring III, 20, elastic cylindrical pin.
The specific embodiment
As shown in drawings: the floated hydraulic prop of a kind of external guiding comprises: hinged top lid 1, the post 3 of living, live column sealing lid 2, cylinder body 7, cylinder body seal cover 6, triple-use valve 12, triple-use valve seat 8, back-moving spring 9 and base 11; Described cylinder body seal cover 6 lower ends are fixed with cylinder body 7 upper ends by connecting steel wire ring 13 and sealing ring I 14, and cylinder body seal cover 6 endoporus are connected with the post 3 of living with sealing ring II 16 by guide ring I 15; There is column sealing lid 2 alive described post alive 3 upper ends, and described hinged top lid 1, post 3 alive and the column sealing of living cover between 2 threes and be fixed together by elastic cylindrical pin 20; Described triple-use valve 12 is fixed on the cylinder body 7 by triple-use valve seat 8, and the lower end of cylinder body 7 is provided with base 11; Between described base 11 and the hinged top lid 1 back-moving spring 9 is arranged; It is characterized in that: at the upper end of cylinder body 7 fixed guide cover 5, described fairlead 5 upper end fixed guide cover seal covers 4, described fairlead seal cover 4 is connected with the post 3 of living with dust ring 18 by guide ring II 17.
Guide ring II 17 is arranged on the fairlead seal cover 4, have the distance between 15, two guide rings of guide ring I to be the guiding distance of the post 3 of living on the cylinder body seal cover 6, when the post 3 of living was up, guide effect was good, and guiding accuracy significantly improves, and has effectively improved the bending resistance of pillar.
On the external cylindrical surface of described post alive 3 lower ends spacing steel wire ring 10 is set, the external diameter of spacing steel wire 10 and oil cylinder 7 internal diameters leave the gap.When the post 3 of living is up, bad 10 limiting stands of running on the cylinder body seal cover 6 of spacing steel wire, post 3 up the stopping that living had both been improved the intensity of post 3 alive, had increased the safety factor of post 3 alive again.
Described fairlead 5 lower ends are connected with cylinder body seal cover 6 by seam.Described fairlead 5 upper ends are connected with fairlead seal cover 4 by seam.Connect by seam, improve the rigidity between the connector effectively.
Welding between described fairlead 5 and the cylinder body seal cover 6.Welding between described fairlead 5 and the fairlead seal cover 4.Mode by welding connects, and is simple reliable.
Claims (6)
1. the floated hydraulic prop of external guiding comprises: hinged top lid (1), the post (3) of living, live column sealing lid (2), cylinder body (7), cylinder body seal cover (6), triple-use valve (12), triple-use valve seat (8), back-moving spring (9) and base (11); Described cylinder body seal cover (6) lower end is fixing with cylinder body (7) upper end by connecting steel wire ring (13) and sealing ring I (14), and cylinder body seal cover (6) endoporus is connected with the post (3) of living with sealing ring II (16) by guide ring I (15); There is column sealing lid alive (2) described post alive (3) upper end, and described hinged top lid (1), post (3) alive and the column sealing of living cover between (2) three and be fixed together by elastic cylindrical pin (20); Described triple-use valve (12) is fixed on the cylinder body (7) by triple-use valve seat (8), and the lower end of cylinder body (7) is provided with base (11); Between described base (11) and the hinged top lid (1) back-moving spring (9) is arranged; It is characterized in that: at the upper end of cylinder body (7) fixed guide cover (5), described fairlead (5) upper end fixed guide cover seal cover (4), described fairlead seal cover (4) is connected with the post (3) of living with dust ring (18) by guide ring II (17).
2. the floated hydraulic prop of external guiding according to claim 1, it is characterized in that: on the external cylindrical surface of described post alive (3) lower end spacing steel wire ring (10) is set, when the post (3) of living is up, spacing steel wire ring (10) is run into the limiting stand on the cylinder body seal cover (6), and up the stopping of post (3) lives.
3. the floated hydraulic prop of external guiding according to claim 1 is characterized in that: described fairlead (5) lower end is connected with cylinder body seal cover (6) by seam.
4. the floated hydraulic prop of external guiding according to claim 1 is characterized in that: described fairlead (5) upper end is connected with fairlead seal cover (4) by seam.
5. according to claim 1 or the floated hydraulic prop of 3 described external guiding, it is characterized in that: welding between described fairlead (5) and the cylinder body seal cover (6).
6. according to claim 1 or the floated hydraulic prop of 4 described external guiding, it is characterized in that: welding between described fairlead (5) and the fairlead seal cover (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200907129U CN202001028U (en) | 2011-03-25 | 2011-03-25 | Suspending single hydraulic prop with external guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200907129U CN202001028U (en) | 2011-03-25 | 2011-03-25 | Suspending single hydraulic prop with external guider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001028U true CN202001028U (en) | 2011-10-05 |
Family
ID=44703773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200907129U Expired - Fee Related CN202001028U (en) | 2011-03-25 | 2011-03-25 | Suspending single hydraulic prop with external guider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644166A (en) * | 2013-12-26 | 2014-03-19 | 淮北安来机电装备有限公司 | Oil/air cylinder with single cylindrical surface guide in inner cylinder hole |
-
2011
- 2011-03-25 CN CN2011200907129U patent/CN202001028U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644166A (en) * | 2013-12-26 | 2014-03-19 | 淮北安来机电装备有限公司 | Oil/air cylinder with single cylindrical surface guide in inner cylinder hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20120325 |