CN205477679U - Two flexible hydraulic prop - Google Patents
Two flexible hydraulic prop Download PDFInfo
- Publication number
- CN205477679U CN205477679U CN201620095356.2U CN201620095356U CN205477679U CN 205477679 U CN205477679 U CN 205477679U CN 201620095356 U CN201620095356 U CN 201620095356U CN 205477679 U CN205477679 U CN 205477679U
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- China
- Prior art keywords
- cylinder body
- telescopic hydraulic
- hole
- cylinder
- sealing member
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- 238000007789 sealing Methods 0.000 claims description 25
- 238000005452 bending Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000003746 feather Anatomy 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
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Abstract
The utility model relates to a two flexible hydraulic prop, comprising a cylinder body, the inside cavity that is provided with of cylinder body, the cylinder body includes cylinder body no. 1 and cylinder body no. 2, cylinder body no. 1 backward sets up with cylinder body no. 2 side by side, and cylinder diameter between them is the same, cylinder body no. 1 and cylinder body are provided with connecting portion between two, the inside through -hole no. 1 that is provided with of connecting portion, through -hole no. 1 communicates with each other with the cavity of cylinder body no. 1, cylinder body no. 2 respectively, the utility model has the characteristics of novel structure, strut that the stroke is big, bearing capacity is big, the stretch mode is nimble, bending resistance is strong, the range of application is wide, work efficiency is high.
Description
Technical field
This utility model belongs to mining equiment technical field, relates in particular to a kind of double telescopic hydraulic and props up
Post.
Background technology
China is the country that coal-face is most in the world, use roof timbering number of devices is most.
Hydraulic prop, as the nucleus equipment of roof timbering, can individually do a post or other temporary supporting
Equipment is used.
Hydraulic prop, different with working solution by feed liquid way, it is divided into outer feed flow formula pillar and interior confession
Liquid formula pillar；Different by impulse stroke, it is divided into single telescopic prop and double telescopic prop.Existing double flexible
Pillar is to meet double flexible technology requirement, needs to be set in two-level oil cylinder in one-level oil cylinder inner core,
Cause the cylinder diameter of two-level oil cylinder less than one-level cylinder diameter.Owing to cylinder diameter attenuates, cause the support strength of pillar
Weaken, to ensure that original support strength is necessary for adding large-diameter, cause pillar weight, cost etc. to increase
Add.Therefore, develop a kind of novel structure, stretch mode flexibly, supporting stroke and bearing capacity is big,
Double telescopic hydraulic pillars that bending resistance is strong, work efficiency is high are imperative.
Utility model content
For all deficiencies of prior art, in order to solve the problems referred to above, it is proposed that a kind of novel structure,
Supporting stroke is big, bearing capacity is big, stretch mode is flexible, bending resistance is strong, applied range, work
Make double telescopic hydraulic pillars that efficiency is high.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of double telescopic hydraulic pillar, including cylinder body, described cylinder interior is provided with cavity, described cylinder
Body includes that cylinder body one and cylinder body two, described cylinder body one are reversely arranged side by side with cylinder body two, and described two
The cylinder diameter of person is identical, is provided with connecting portion, inside described connecting portion between described cylinder body one and cylinder body two
Being provided with through hole one, described through hole one cavity with cylinder body one, cylinder body two respectively communicates.
Further, described cylinder body is provided with top cover away from one end of connecting portion, and described cylinder interior is from connecting
The portion that connects is disposed with piston and plunger tube to top cover direction.
Further, described plunger tube is provided with post lid, described post lid and company near one end of top cover
Connect and between portion, be provided with elastic component.
Further, it is provided with connector between described top cover and plunger tube.
Further, described connecting portion is additionally provided with through hole two, and described through hole two and through hole one phase
Logical.
Further, described through hole two is internally provided with triple-use valve.
Further, described cylinder body periphery is provided with cylinder sleeve, is provided with locking between described cylinder sleeve and top cover
Device.
Further, described locking device includes buckle and draw-in groove, and described buckle is positioned at cylinder sleeve, described
Draw-in groove is positioned at top cover.
Further, described post lid being provided with sealing member one, described piston sets with plunger tube contact position
It is equipped with sealing member two, described piston is provided with sealing member three, described sealing member one, sealing member two and
Sealing member three all sets at least to one.
The beneficial effects of the utility model are:
1, this utility model is by oppositely arranged with cylinder body two for cylinder body one, it is achieved the function of bi-directional expansion,
There is novel structure, feature that supporting stroke is big.
2, cylinder body one is arranged side by side by this utility model with cylinder body two, and cylinder body one and cylinder body two
Cylinder diameter is identical, has the advantages that bearing capacity is big, bending resistance is strong.
3, this utility model is provided with locking device, pillar can be selected unidirectional according to actual needs
Or bi-directional expansion, have stretch mode flexibly, the feature of applied range.
4, in this utility model, cylinder body one, the cavity of cylinder body two communicate, and promote pillar simultaneously bi-directionally to stretch
Going out or retract, simple operation, working application time is short, has the advantages that work efficiency is high.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of a kind of embodiment of this utility model；
Fig. 2 is the overall structure schematic diagram of this utility model another embodiment.
In accompanying drawing: cylinder body 1, cylinder body 22, connecting portion 3, through hole 1, through hole 25, triple-use valve 6,
Top cover 7, piston 8, plunger tube 9, post lid 10, cylinder sleeve 11, connector 12, cavity 13, elastic component
14, draw-in groove 15, buckle 16, sealing member 1, sealing member 2 18, sealing member 3 19.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the technical solution of the utility model, below in conjunction with this
The accompanying drawing of utility model, carries out clear, complete description to the technical solution of the utility model, based on
Embodiment in the application, those of ordinary skill in the art are not on the premise of making creative work
Other the similar embodiment obtained, all should belong to the scope of the application protection.
The utility model is described in further detail with preferred embodiment below in conjunction with the accompanying drawings.
Embodiment one:
As it is shown in figure 1, a kind of double telescopic hydraulic pillar, including cylinder body, described cylinder interior is provided with
Cavity 13, described cylinder body includes cylinder body 1 and cylinder body 22, and described cylinder body 1 is with cylinder body 22 the most also
Row is arranged, it is achieved the function of bi-directional expansion, has novel structure, a feature that supporting stroke is big, described
Cylinder body 1 and cylinder body 22 are arranged side by side, and both cylinder diameters are identical, have bearing capacity big, anti-
The feature that curved ability is strong.
Being provided with connecting portion 3 between described cylinder body 1 and cylinder body 22, described connecting portion 3 is internally provided with
Through hole 1, described through hole 1 cavity 13 with cylinder body 1, cylinder body 22 respectively communicates, described connection
It is additionally provided with through hole 25 in portion 3, and described through hole 25 communicates with through hole 1, described through hole 25
It is internally provided with triple-use valve 6, in described triple-use valve 6, is provided with check valve, relief valve and feather valve, work
During work, hydraulic medium passes sequentially through the check valve of triple-use valve 6, through hole 1 arrives in cavity 13,
Promoting pillar simultaneously bi-directionally to stretch out, working application time is short, and work efficiency is high.
Described cylinder body is provided with top cover 7 away from one end of connecting portion 3, and described cylinder interior is from connecting portion 3
Be disposed with piston 8 and plunger tube 9 to top cover 7 direction, described plunger tube 9 sets near one end of top cover 7
Being equipped with post lid 10, described hydraulic medium directly acts on post lid 10 by plunger tube 9, cavity 13
Becoming big, pillar raises, and is provided with elastic component 14 between described post lid 10 and connecting portion 3, contributes to propping up
Post is retracted, and is provided with connector 12 between described top cover 7 and plunger tube 9, and described connector 12 is set to
Elastic cylindrical pin, as in figure 2 it is shown, described connector 12 is set to bearing pin, described top cover 7 contributes to protecting
Protect the internal structure of cylinder body, extend the service life of cylinder body.
Described cylinder body periphery is provided with cylinder sleeve 11, is provided with locking dress between described cylinder sleeve 11 and top cover 7
Putting, described locking device includes buckle 16 and draw-in groove 15, and described buckle 16 is positioned at cylinder sleeve 11, described
Draw-in groove 15 is positioned at top cover 7, pillar can be selected unidirectional or bi-directional expansion, tool according to actual needs
Have stretch mode flexibly, the feature of applied range.
As shown in Figure 1-2, described post lid 10 is provided with sealing member 1, to described post lid 10
To sealing function, described piston 8 is provided with sealing member 2 18, to described piston 8 with plunger tube 9 contact position
Play with plunger tube 9 and be connected and sealing function, described piston 8 is provided with sealing member 3 19, to described
Piston 8 plays sealing function, and described sealing member 1, sealing member 2 18 and sealing member 3 19 are arranged at
In sealed groove, and described three all sets at least to one, is obviously enhanced sealing effectiveness.
Embodiment two:
As shown in Figure 1-2, when the double telescopic hydraulic pillar of described one realizes bi-directional expansion, its specific works
Process is as follows:
First, described buckle 16 and draw-in groove 15 are separated, promote described both be in contactless state,
The top cover 7 of described cylinder body 1 is fixed with base plate, improves installing of described pair of telescopic hydraulic pillar
Stability；
Secondly, described hydraulic medium enters cylinder body 1, cylinder body 22 by the check valve of triple-use valve 6
In cavity 13, along with the injection of hydraulic medium, when reaching certain pressure, plunger tube 9, post lid 10
Rise with top cover 7, until the top cover 7 of cylinder body 22 is arranged in back timber notch, face roof is risen
To support action；
Again, along with the prolongation of support time, face roof acts on the load on pillar to be increased,
When the load that pillar is born exceedes its yield load, the hydraulic medium in cavity 13 passes through three
Relief valve with valve 6 is excessive, drives described plunger tube 9 and bounces back together with post lid 10, top cover 7, promoting
Roof pressure retrieves balance；
Finally, when pillar is retracted, by unloading hands inserting in triple-use valve 6, rotate and unload hands handle, promote
Hydraulic medium is made to enter goaf by the feather valve of triple-use valve 6, described plunger tube 9 together with post lid
10, top cover 7 is retracted under the effect of deadweight and elastic component 14, completes pillar and reclaims.
When the double telescopic hydraulic pillar of described one realizes one-way expansion, its specific works process is stretched with two-way
Condensed phase part together repeats no more, except for the difference that:
The locking device of described cylinder body 1 or cylinder body 22 is in running order, the most described buckle 16 and card
Groove 15 is in contact condition, it is achieved the one-way expansion of pillar.
Below this utility model is described in detail, the above, only this utility model relatively
Good embodiment, when not limiting this utility model practical range, the most all is made according to the application scope
Impartial change and modification, all should still belong in this utility model covering scope.
Claims (9)
1. double telescopic hydraulic pillars, including cylinder body, described cylinder interior is provided with cavity, institute
State cylinder body and include cylinder body one and cylinder body two, it is characterised in that: described cylinder body one is with cylinder body two the most side by side
Arrange, and both cylinder diameter described be identical, is provided with connecting portion between described cylinder body one and cylinder body two,
Described connecting portion is internally provided with through hole one, described through hole one respectively with cylinder body one, the cavity of cylinder body two
Communicate.
The double telescopic hydraulic pillar of one the most according to claim 1, it is characterised in that: described cylinder
Body is provided with top cover away from one end of connecting portion, and described cylinder interior is from connecting portion to top cover direction successively
It is provided with piston and plunger tube.
The double telescopic hydraulic pillar of one the most according to claim 2, it is characterised in that: described work
Column casing is provided with post lid near one end of top cover, is provided with elasticity between described post lid and connecting portion
Part.
The double telescopic hydraulic pillar of one the most according to claim 3, it is characterised in that: described top
It is provided with connector between lid and plunger tube.
The double telescopic hydraulic pillar of one the most according to claim 4, it is characterised in that: described company
Connect and in portion, be additionally provided with through hole two, and described through hole two communicates with through hole one.
The double telescopic hydraulic pillar of one the most according to claim 5, it is characterised in that: described logical
Hole two is internally provided with triple-use valve.
The double telescopic hydraulic pillar of one the most according to claim 6, it is characterised in that: described cylinder
Body periphery is provided with cylinder sleeve, is provided with locking device between described cylinder sleeve and top cover.
The double telescopic hydraulic pillar of one the most according to claim 7, it is characterised in that: described lock
Tight device includes that buckle and draw-in groove, described buckle are positioned at cylinder sleeve, and described draw-in groove is positioned at top cover.
The double telescopic hydraulic pillar of one the most according to claim 8, it is characterised in that: described post
Being provided with sealing member one on lid, described piston and plunger tube contact position are provided with sealing member two, described
Be provided with sealing member three on piston, described sealing member one, sealing member two and sealing member three all at least provided with
It it is one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095356.2U CN205477679U (en) | 2016-01-29 | 2016-01-29 | Two flexible hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095356.2U CN205477679U (en) | 2016-01-29 | 2016-01-29 | Two flexible hydraulic prop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205477679U true CN205477679U (en) | 2016-08-17 |
Family
ID=56671673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620095356.2U Expired - Fee Related CN205477679U (en) | 2016-01-29 | 2016-01-29 | Two flexible hydraulic prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205477679U (en) |
-
2016
- 2016-01-29 CN CN201620095356.2U patent/CN205477679U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |