CN104912575A - Single hydraulic prop repair method and compound single hydraulic prop - Google Patents
Single hydraulic prop repair method and compound single hydraulic prop Download PDFInfo
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- CN104912575A CN104912575A CN201410700666.8A CN201410700666A CN104912575A CN 104912575 A CN104912575 A CN 104912575A CN 201410700666 A CN201410700666 A CN 201410700666A CN 104912575 A CN104912575 A CN 104912575A
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Abstract
The invention provides a compound single hydraulic prop which integrates the structures of both a suspended hydraulic prop and a piston-type hydraulic prop. The compound single hydraulic prop comprises a base, a three-use valve, a column head, a handle body, a cylinder body, a plunger body arranged in the cylinder body in a sliding manner and a spring, and is characterized in that the three-use valve is fixed on the column head, the column head is fixed to the lower end of the cylinder body, an unsealed structure is formed between the bottom outer wall of the plunger body and the inner wall of the cylinder body, the handle body is fixed to the upper end of the cylinder body, and a sealing part used for preventing hydraulic oil from leakage is arranged on the handle body. The compound single hydraulic prop further comprises at least one guide ring used for guiding the plunger body. As the sealing part is additionally arranged on the handle body and a piston is omitted, a conventional single hydraulic prop can be effectively repaired, accordingly, the use cost is greatly lowered, and the service life is prolonged.
Description
Technical field
The present invention relates to a kind of compound hydraulic prop and restorative procedure, the maintenance maintenance of mine individual hydraulic prop can be widely used in.
Background technology
For a long time, the tunnelling in all kinds of mine or the safety support of exploitation work plane use a large amount of hydraulic props, and wherein the overwhelming majority is floated and piston type two kinds of products.According to relevant regulations, hydraulic prop wants periodic maintenance, Reusability scrapping in the time limit.
At present, during this two kinds of hydraulic prop maintenances, part can not exchange, and causes very large waste.The particularly major part oil cylinder of piston hydraulic single prop, once inwall corrosion is just difficult to repairing and reusing.
Preprosthetic hydraulic prop mainly forms as shown in Figure 1: 1, top cover; 2, old hand handle; 3, to live post; 4, cylinder body; 5, piston; 6, column cap; 7, triple-use valve; 8, cylinder body spreading body; 9, base
The effect of main composition:
1, the function of top cover is: be connected with handing-over back timber, roof supporting.
2, the function of old hand handle is: stationary housing, prevents dust from entering in Body of pillar, is used as handle.
3, the function of post of living is: fixing triple-use valve, connects cylinder of living up and down.
4, the function of oil cylinder is: seal fluid, supporting strut.
5, the function of piston: seal fluid, stops liquid to enter in post chamber alive.
6, the function of column cap is: fixing seal triple-use valve, and liquid is entered in cylinder body.
7, the function of triple-use valve is: be connected with fluid injection gun, and liquid is entered, when fluid pressure exceedes setting pressure, and safety unloading.
8, cylinder body connects the function of high body and is: increase pillar whole height.
9, the function of base is: support post of living, and prevents post alive from inserting below ground.
Wherein old hand 2 as shown in Figure 2: 21, dust ring; 22, guide collar; 23, steel wire
The effect of main composition:
21, the function of dust ring is: prevent dust from entering in mast chamber alive.
22, the function of guide collar is: support cylinder of living, prevent with hand contact internal walls, scratches cartridge outer surface of living.
23, the function of steel wire is: integral cast handle and cylinder body.
Adopt existing structure, once cylinder body occurs sealing bad situation with cylinder of living, whole hydraulic prop just can not normally use.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of hydraulic prop restorative procedure and compound hydraulic prop are provided, by handle body is set up sealing, and eliminate piston, effectively existing hydraulic prop can be repaired, greatly reduce use cost and extend application life.
For reaching above object, the technical solution adopted in the present invention is:
A kind of compound hydraulic prop, comprise base, triple-use valve, column cap, handle body, cylinder body, cylinder alive, the spring be slidably arranged in cylinder body, it is characterized in that, triple-use valve is fixed on column cap, and column cap is fixed on cylinder body lower end or cylinder upper end of living; Living between cylinder bottom outer wall and inboard wall of cylinder block is non-hermetic structure; Handle body is fixed on cylinder body upper end, and handle body is provided with seal groove, and seal groove is provided with the seal being sealed and matched with cylinder outer wall of living, preventing hydraulic oil from revealing; Also include the guide ring that at least one leads to cylinder of living.
Further, be at least twice in described guide ring: upper guide ring and lower guide ring, wherein go up guide ring and be fixed in handle body handle body, upper guide ring inwall coordinates with work cylinder outer wall; Lower guide ring is positioned at cylinder bottom alive outer wall, coordinates with inboard wall of cylinder block.
Further, live cylinder bottom outer wall and inboard wall of cylinder block was provided with oily passage.
Further, described handle body inwall is also provided with dust ring and for the steel wire fixing with cylinder body.
Further, described seal is sealing ring and O type circle.
A restorative procedure for compound hydraulic prop, is characterized in that:
A, repair the oil cylinder two ends sealing surface of the DW type hydraulic prop scrapped because of the serious corrosion of inwall, oil cylinder inner wall is not repaired; Ensure that lower end sealing surface and the base seal of oil cylinder are firm, upper end sealing surface and handle body seal;
The external surface of the cylinder alive of b, reparation DWX type hydraulic prop, improves the anticorrosive and crocking resistance of external surface, makes it meet DWX t shore cylinder alive;
C, on the handle body of pillar, set up the seal preventing hydraulic oil from flowing out seal groove and cooperation;
D, abandon the piston of the waste and old pillar of DW type;
E, live cylinder lower end set up guide ring;
F, the top cover continuing to use waste and old hydraulic prop, base, back-moving spring, use after assembling.
Operating principle of the present invention and beneficial effect show:
After long-time use, just there is poorly sealed situation in inwall and the cylinder outer wall of living of oil cylinder to original DW hydraulic prop.After adopting the present invention, existing oil cylinder inner wall end can be repaired a little, then coordinate new cylinder alive to realize sealing.
The structural innovative point of the present invention has carried out structure improvement when not changing original suspension type hydraulic prop, is mainly manifested in:
1, handle body is fixed on the upper end of cylinder body, being provided with seal, for sealing cylinder alive and handle body inwall, preventing hydraulic oil from overflowing between handle body and cylinder alive;
2, the cylinder alive of cylinder bottom position alive and the sealing of oil cylinder inner wall are removed, living between cylinder and oil cylinder was oily passage;
3, upper and lower guide ring is added;
Improved by above structure, hydraulic oil fills space and there occurs change, and originally hydraulic oil is sealed in cylinder intracavity alive and oil cylinder part, is sealed by the seal be positioned on piston;
After change, hydraulic oil fills between the outer wall of the whole inwall of cylinder intracavity, oil cylinder and cylinder body and cylinder of living of living, and is sealed by the seal be positioned on handle body.
After above change, originally the seal request of living between cylinder outer wall and inboard wall of cylinder block reduces, and the component between two kinds of pillars can be carried out compound use.
This compound hydraulic prop can be repaired by following restorative procedure:
A, repair the oil cylinder two ends sealing surface of the DW type hydraulic prop scrapped because of the serious corrosion of inwall; Ensure that lower end sealing surface and the base seal of oil cylinder are firm, upper end sealing surface and handle body seal;
The external surface of the cylinder alive of b, reparation DWX type hydraulic prop, improves the anticorrosive and crocking resistance of external surface;
C, on the handle body or new handle body of DW pillar (this handle body not containing triple-use valve), set up and prevent hydraulic oil from flowing out the live seal groove of cylinder and the seal of cooperation;
D, abandon the piston of the waste and old pillar of DW type;
E, live cylinder lower end set up guide ring;
F, the top cover continuing to use waste and old hydraulic prop, base, back-moving spring, use after assembling.
Above-mentioned method for maintaining, by changing handle body structure, change handle body into by piston seal to seal, the oil cylinder that inwall corrosion is scrapped is used, abandon piston again, set up guide ring, waste and old hydraulic prop is transformed into a kind of compound hydraulic prop completely newly, concentrate advantage that is floated and piston type two kinds of hydraulic props.
This method for maintaining, the part making some scrap obtains Appropriate application, and the pillar making some scrap is repaired use again, not only economy but also practical, is of wide application.
To sum up, adopt the handle body sealing of floated type single hydraulic prop stay, suspension type support, the agent structure form of the column cap direction fluid injection of piston hydraulic single prop, and the aspect such as base, top cover, guiding, reset, then continue to use floated and existing structure form that is piston type two kinds of hydraulic props, thus form a kind of compound hydraulic prop completely newly.
This composite structured maintenance being applied to waste and old hydraulic prop, in part restore, can realize floatedly utilizing with the exchange of piston type two kinds of hydraulic prop major parts, greatly improve the utilization rate of waste and old part, a large amount of saving steel; At aspect of performance, floated and advantageous combination that is piston type two kinds of hydraulic props can be realized, significantly improve the functional performance of hydraulic prop.
Accompanying drawing explanation
Fig. 1 is the structural representation of former hydraulic prop;
Fig. 2 is former hydraulic prop handle structure schematic diagram;
Fig. 3 be repair complete after, with connecing high form,
Fig. 4, after repairing, does not connect high form;
Fig. 5 is that new hand is structural representation.
Detailed description of the invention
The correlation technique content do not addressed below all can adopt or use for reference prior art.
Technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the application's protection.
Shown in Fig. 3,4: a kind of compound hydraulic prop, comprise base 31, triple-use valve 32, column cap 33, handle body 34, cylinder body 35, the cylinder alive 36 be slidably arranged in cylinder body, spring 37.
Triple-use valve 32 is fixed on column cap 33, and column cap 33 is fixed on cylinder body 35 lower end (shown in Fig. 3) or cylinder 36 upper end of living (shown in Fig. 4); Upper end and the handle body 34 of cylinder body 35 are sealed and matched.
Cylinder 36 bottom outer wall of living eliminates original piston, and living between cylinder 36 and cylinder body 35 inwall is non-hermetic structure, and cylinder 36 bottom outer wall alive and cylinder body 35 inwall were provided with oily passage.
Handle body 34 is fixed on cylinder body 35 upper end, and handle body 34 is provided with seal groove, and seal groove is provided with the seal being sealed and matched with the cylinder outer wall of living, preventing hydraulic oil from revealing, such as sealing ring, Fig. 5 53 shown in.
Also include the guide ring that at least one leads to cylinder of living, the present embodiment is provided with twice: upper guide ring and lower guide ring, wherein goes up guide ring and is fixed in handle body handle body, and upper guide ring inwall coordinates with cylinder outer wall of living; Lower guide ring is positioned at cylinder bottom alive outer wall, coordinates with inboard wall of cylinder block.
New hand is as shown in Figure 5:
The effect of main composition:
51, the function of dust ring is: prevent dust from entering in mast chamber alive.
52, the function of guide collar is: support cylinder of living, prevent with hand contact internal walls, scratches cartridge outer surface of living; Belong to and set up.
53, the function of sealing ring is: sealing cylinder alive, prevents leak of liquid; Belong to and set up.
54, the function of O type circle is: sealed cylinder block, prevents leak of liquid.
55, the function of steel wire is: integral cast handle and cylinder body.
Visible, the cylinder bottom alive of this compound hydraulic prop does not have piston, non-hermetic structure between outer wall and inboard wall of cylinder block---live between cylinder outer wall and inboard wall of cylinder block and no longer seal is set, cylinder of living is suspended in cylinder body, like this, hydraulic oil can fill in whole cylinder alive and live in the cavity of cylinder outer wall and inboard wall of cylinder block.
The hydraulic oil seal of the invention is arranged on new hand upper, hand on set up seal, as shown in Figure 4, like this, whole new hand on be provided with dust ring and steel wire, sealing ring and O type circle.
This compound hydraulic prop is repaired by such as under type:
A, repair the oil cylinder two ends sealing surface of the DW type hydraulic prop scrapped because of the serious corrosion of inwall; Ensure that lower end sealing surface and the base seal of oil cylinder are firm, upper end sealing surface and handle body seal;
The external surface of the cylinder alive of b, reparation DWX type hydraulic prop, improves the anticorrosive and crocking resistance of external surface;
C, on the handle body of pillar, set up and prevent hydraulic oil from flowing out the live seal groove of cylinder and the seal of cooperation;
D, abandon the piston of the waste and old pillar of DW type;
E, live cylinder lower end set up guide ring;
F, the top cover continuing to use waste and old hydraulic prop, base, back-moving spring, use after assembling.
The above is only the preferred embodiment of the application, those skilled in the art is understood or realizes the application.To be apparent to one skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the application, can realize in other embodiments.Therefore, the application can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a compound hydraulic prop, comprise base, triple-use valve, column cap, handle body, cylinder body, cylinder alive, the spring be slidably arranged in cylinder body, it is characterized in that, triple-use valve is fixed on column cap, and column cap is fixed on cylinder body lower end or cylinder upper end of living; Living between cylinder bottom outer wall and inboard wall of cylinder block is non-hermetic structure; Handle body is fixed on cylinder body upper end, and handle body is provided with seal groove, and seal groove is provided with the seal being sealed and matched with cylinder outer wall of living, preventing hydraulic oil from revealing; Also include the guide ring that at least one leads to cylinder of living.
2. the compound hydraulic prop according to right 1, is characterized in that: be at least twice in described guide ring: upper guide ring and lower guide ring, wherein go up guide ring and is fixed in handle body handle body, and upper guide ring inwall coordinates with work cylinder outer wall; Lower guide ring is positioned at cylinder bottom alive outer wall, coordinates with inboard wall of cylinder block.
3. the compound hydraulic prop according to right 1 or 2, is characterized in that: cylinder bottom outer wall alive and inboard wall of cylinder block were provided with oily passage.
4. the compound hydraulic prop according to right 1, is characterized in that: described handle body inwall is also provided with dust ring and for the steel wire fixing with cylinder body.
5. the compound hydraulic prop according to right 1, is characterized in that: described seal is sealing ring and O type circle.
6. a restorative procedure for compound hydraulic prop, is characterized in that:
A, repair the oil cylinder two ends sealing surface of the DW type hydraulic prop scrapped because of the serious corrosion of inwall, oil cylinder inner wall is not repaired; Ensure that lower end sealing surface and the base seal of oil cylinder are firm, upper end sealing surface and handle body seal;
The external surface of the cylinder alive of b, reparation DWX type hydraulic prop, improves the anticorrosive and crocking resistance of external surface, makes it meet DWX t shore cylinder alive;
C, on the handle body of pillar, set up the seal preventing hydraulic oil from flowing out seal groove and cooperation;
D, abandon the piston of the waste and old pillar of DW type;
E, live cylinder lower end set up guide ring;
F, the top cover continuing to use waste and old hydraulic prop, base, back-moving spring, use after assembling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410700666.8A CN104912575A (en) | 2014-11-28 | 2014-11-28 | Single hydraulic prop repair method and compound single hydraulic prop |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410700666.8A CN104912575A (en) | 2014-11-28 | 2014-11-28 | Single hydraulic prop repair method and compound single hydraulic prop |
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| Publication Number | Publication Date |
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| CN104912575A true CN104912575A (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410700666.8A Pending CN104912575A (en) | 2014-11-28 | 2014-11-28 | Single hydraulic prop repair method and compound single hydraulic prop |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298519A (en) * | 2015-11-26 | 2016-02-03 | 山东瀚业机械有限公司 | Crank fixed large-stroke internal injection type single hydraulic prop |
| CN112719778A (en) * | 2020-12-29 | 2021-04-30 | 河南中车重型装备有限公司 | Hydraulic oil cylinder inner wall repairing process |
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| CN1207450A (en) * | 1997-08-01 | 1999-02-10 | 中国矿业大学 | Single hydraulic prop |
| CN2450387Y (en) * | 2000-08-24 | 2001-09-26 | 天地科技股份有限公司 | Single hydraulic prop |
| CN1752413A (en) * | 2005-10-31 | 2006-03-29 | 中国矿业大学 | Suspension type hydraulic prop |
| CN201358795Y (en) * | 2009-01-04 | 2009-12-09 | 刘明义 | High mining height outer-injected reducing double-telescopic single hydraulic prop |
| CN201554477U (en) * | 2009-11-20 | 2010-08-18 | 兖矿集团有限公司 | Novel individual hydraulic prop |
| CN202991070U (en) * | 2012-12-26 | 2013-06-12 | 云南机二机械有限责任公司 | Single hydraulic prop |
| CN204511469U (en) * | 2014-11-28 | 2015-07-29 | 刘立起 | Compound hydraulic prop |
-
2014
- 2014-11-28 CN CN201410700666.8A patent/CN104912575A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1207450A (en) * | 1997-08-01 | 1999-02-10 | 中国矿业大学 | Single hydraulic prop |
| CN2450387Y (en) * | 2000-08-24 | 2001-09-26 | 天地科技股份有限公司 | Single hydraulic prop |
| CN1752413A (en) * | 2005-10-31 | 2006-03-29 | 中国矿业大学 | Suspension type hydraulic prop |
| CN201358795Y (en) * | 2009-01-04 | 2009-12-09 | 刘明义 | High mining height outer-injected reducing double-telescopic single hydraulic prop |
| CN201554477U (en) * | 2009-11-20 | 2010-08-18 | 兖矿集团有限公司 | Novel individual hydraulic prop |
| CN202991070U (en) * | 2012-12-26 | 2013-06-12 | 云南机二机械有限责任公司 | Single hydraulic prop |
| CN204511469U (en) * | 2014-11-28 | 2015-07-29 | 刘立起 | Compound hydraulic prop |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298519A (en) * | 2015-11-26 | 2016-02-03 | 山东瀚业机械有限公司 | Crank fixed large-stroke internal injection type single hydraulic prop |
| CN105298519B (en) * | 2015-11-26 | 2017-06-13 | 山东瀚业机械有限公司 | A kind of crank fixes big stroke internal-injection type hydraulic prop |
| CN112719778A (en) * | 2020-12-29 | 2021-04-30 | 河南中车重型装备有限公司 | Hydraulic oil cylinder inner wall repairing process |
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Application publication date: 20150916 |
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