CN203515612U - Suspension type dual-stage stretchable individual hydraulic prop - Google Patents
Suspension type dual-stage stretchable individual hydraulic prop Download PDFInfo
- Publication number
- CN203515612U CN203515612U CN201320568703.5U CN201320568703U CN203515612U CN 203515612 U CN203515612 U CN 203515612U CN 201320568703 U CN201320568703 U CN 201320568703U CN 203515612 U CN203515612 U CN 203515612U
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- Prior art keywords
- oil cylinder
- level oil
- cylinder
- ring
- hydraulic prop
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- Expired - Fee Related
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- 239000000725 suspension Substances 0.000 title abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 6
- 238000001802 infusion Methods 0.000 abstract 4
- 230000009194 climbing Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model belongs to hydraulic props, and particularly relates to a suspension type dual-stage stretchable individual hydraulic prop. A first-grade oil cylinder is installed in a second-grade oil cylinder, a base is connected with a groove in the lower end of the second-grade oil cylinder to tightly press an end cover into the second-grade oil cylinder, a movable prop body is arranged in the first-grade oil cylinder and connected with a top cover through elastic cylindrical pins which are distributed in a radial mode, a small plug is connected to the top of the movable prop body, one end of a reset spring is hung on a hanging ring of the small plug, the other end of the reset spring is hung on a hanging ring of the end cover, a liquid infusion opening is formed in the lateral side of the second-grade oil cylinder, a three-way valve is connected to the liquid infusion opening, and the other two outlets of the three-way valve are connected with a pressure detector and a liquid infusion valve respectively. The suspension type dual-stage stretchable individual hydraulic prop overcomes the detects that as an existing liquid infusion position is designed on a handle, the use height is limited, and sealing is prone to being damaged, the labor intensity of workers during climbing operation is lowered, and damage is prevented.
Description
Technical field
The utility model belongs to a kind of hydraulic prop, particularly relates to a kind of floated two-stage stretching hydraulic prop.
Background technology
Hydraulic prop is applicable to seam inclination and is less than 25 degree--the inclined seam stope of 35 degree, the Seam Roof And Floor condition adapting to is: top board falls behind the recovery that does not affect pillar, base plate should not be excessively soft, and pillar is pressed into the integrality that bottom plate depth does not worsen base plate, otherwise should strengthen base.While using, the cylinder coating surface of living is taked to safeguard measure, in case crumble in the softer blast mining face of ature of coal.Floated type single hydraulic prop stay is a kind of of outside injection type hydraulic pillar, but there is again a very significant advantage than outside injection type hydraulic pillar, that is exactly that DWX type hydraulic prop adopts suspension type of force plunger formula know-why, suspending power reaches 4/5ths of working resistance, and column is stressed is only that 1/5th, DWX t shore triple-use valve is located on handle body, during fluid injection, triple-use valve does not raise with the post alive of pillar, easy to operate, safe and reliable.But hydraulic prop, its liquid injection port is all arranged on handle body, and handle body is the upper edge at oil cylinder, its drawback one is to be not suitable for highly large pillar, restricted to pillar height; Thereby it two is easily to bump and cause bad seals in when carrying.
Summary of the invention
Technical problem to be solved in the utility model is: thus while how to solve hydraulic prop to the conditional problem of pillar height and carrying, easily bump and cause the problem of bad seals.
The technical scheme that the utility model adopts is: a kind of floated two-stage stretching hydraulic prop, one-level oil cylinder is installed in two-level oil cylinder, base is connected end cap is tightly pressed into described two-level oil cylinder with the lower end groove of described two-level oil cylinder, in described one-level oil cylinder, there is cylinder alive, described cylinder alive is connected by the elastic cylindrical pin pin at radial equipartition with top cover, the little stifled top that is connected to described cylinder alive, back-moving spring one end hangs on described little stifled link, the other end hangs on the link of described end cap, dust ring is passed through on described one-level oil cylinder hoop top, y-shaped ring, guide ring and described cylinder alive are tightly connected, back-up ring is passed through in bottom, O shape circle is connected with upper end sealing the groove of described one-level oil cylinder, dust ring is passed through on described two-level oil cylinder's hoop top, y-shaped ring, guide ring and described one-level oil cylinder are tightly connected, back-up ring is passed through in bottom, O shape circle is connected with upper end sealing the groove of described two-level oil cylinder, there is liquid injection port described two-level oil cylinder side, in described liquid injection port, connect triple-use valve, two other outlet of described triple-use valve is connected with respectively pressure detecting instrument and liquid-filling valve.
As a kind of optimal way: described top cover is hinged top lid or cap formula top cover.
As a kind of optimal way: many protruding rectangular cylinders are arranged at the top of described cap formula top cover, and the top level of described rectangular cylinder is concordant.
The beneficial effects of the utility model are: the utility model overcome existing fluid injection Position Design the restriction on handle body use height and the flimsy drawback of sealing, thereby both alleviated the ascend a height labour intensity of operation of workman, avoid again damaging; Simultaneously the utility model compares with existing hydraulic prop that supporting capacity is large, offset load resistance is strong, and especially impulse stroke is large, applied widely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Tu2Shi the utility model two-level oil cylinder structural representation;
Fig. 3 is the structural representation of cap formula top cover.
Wherein 1, top cover, 2, elastic cylindrical pin, 3, little stifled, 4, the cylinder of living, 5, back-moving spring, 6, one-level oil cylinder hoop, 7, one-level oil cylinder, 8, two-level oil cylinder hoop, 9, handle, 10, pressure detecting instrument, 11, snap joint, 12, liquid-filling valve, 13, triple-use valve, 14, two-level oil cylinder, 15, end cap, 16, base, 17, valve piece.
The specific embodiment
As shown in Figure 1, the utility model specific embodiment is as follows: the cylinder (4) of living is assemblied in one-level oil cylinder (7), and one-level oil cylinder (7) is assemblied in two-level oil cylinder (14), thereby has realized two-stage stretching, has strengthened stroke height; The lower end of two-level oil cylinder (14) seals assembling with end cap (15) and links together by being connected steel wire (it is a kind of that groove connects, and steel wire is squeezed in groove and connected) with base (16); The cylinder (4) of living is connected by the elastic cylindrical pin at radial equipartition (2) with top cover (1); Little stifled (3) seal assembling with the column sleeve on cylinder (4) top of living; Back-moving spring (5) one end hangs on the link of little stifled (3), and the other end hangs on the link of end cap (15); One-level oil cylinder hoop (6) top passes through dust ring, y-shaped ring, guide ring and the cylinder (4) of living is realized sealing, and bottom is sealed and links together by being connected steel wire with the upper end of one-level oil cylinder (7) by back-up ring, O shape circle; The cylinder (4) of living completes stretching up and down in stroke in one-level oil cylinder (7); Sealing is realized by dust ring, y-shaped ring, guide ring and one-level oil cylinder (7) in two-level oil cylinder's hoop (8) top, and bottom is sealed and linked together by connecting steel wire by the upper end of back-up ring, O Xing Quanyu two-level oil cylinder (14); In one-level oil cylinder (7) Ze two-level oil cylinder hoop (14), complete stretching up and down in stroke; Liquid-filling valve (12) is assemblied on the valve piece of two-level oil cylinder (14); It is inner that triple-use valve (13) is arranged on valve piece (12); Pressure detecting instrument (10) is contained on liquid-filling valve (12) by snap joint (11), shows current liquid pressure value.As shown in Figure 2, there is liquid injection port two-level oil cylinder 14 sides, connect triple-use valve 13 in described liquid injection port, and two other outlet of described triple-use valve is connected with respectively pressure detecting instrument 10 and liquid-filling valve 12.
The above top cover of the utility model, according to down-hole supporting actual needs, both can be the hinged top lid supporting with metal hinge top beam, also can be adopted as the cap formula top cover of direct supporting roof as shown in Figure 3.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, any simple modification, equivalent variations or modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.
Claims (3)
1. a floated two-stage stretching hydraulic prop, it is characterized in that: one-level oil cylinder is installed in two-level oil cylinder, base is connected end cap is tightly pressed into described two-level oil cylinder with the lower end groove of described two-level oil cylinder, in described one-level oil cylinder, there is cylinder alive, described cylinder alive is connected by the elastic cylindrical pin pin at radial equipartition with top cover, the little stifled top that is connected to described cylinder alive, back-moving spring one end hangs on described little stifled link, the other end hangs on the link of described end cap, dust ring is passed through on described one-level oil cylinder hoop top, y-shaped ring, guide ring and described cylinder alive are tightly connected, back-up ring is passed through in bottom, O shape circle is connected with upper end sealing the groove of described one-level oil cylinder, dust ring is passed through on described two-level oil cylinder's hoop top, y-shaped ring, guide ring and described one-level oil cylinder are tightly connected, back-up ring is passed through in bottom, O shape circle is connected with upper end sealing the groove of described two-level oil cylinder, there is liquid injection port described two-level oil cylinder side, in described liquid injection port, connect triple-use valve, two other outlet of described triple-use valve is connected with respectively pressure detecting instrument and liquid-filling valve.
2. a kind of floated two-stage stretching hydraulic prop according to claim 1, is characterized in that: described top cover is hinged top lid or cap formula top cover.
3. a kind of floated two-stage stretching hydraulic prop according to claim 2, is characterized in that: many protruding rectangular cylinders are arranged at the top of described cap formula top cover, and the top level of described rectangular cylinder is concordant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320568703.5U CN203515612U (en) | 2013-09-13 | 2013-09-13 | Suspension type dual-stage stretchable individual hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320568703.5U CN203515612U (en) | 2013-09-13 | 2013-09-13 | Suspension type dual-stage stretchable individual hydraulic prop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515612U true CN203515612U (en) | 2014-04-02 |
Family
ID=50374557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320568703.5U Expired - Fee Related CN203515612U (en) | 2013-09-13 | 2013-09-13 | Suspension type dual-stage stretchable individual hydraulic prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203515612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130985A (en) * | 2017-07-12 | 2017-09-05 | 山东瀚业机械有限公司 | A kind of hydraulic prop |
-
2013
- 2013-09-13 CN CN201320568703.5U patent/CN203515612U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130985A (en) * | 2017-07-12 | 2017-09-05 | 山东瀚业机械有限公司 | A kind of hydraulic prop |
| CN107130985B (en) * | 2017-07-12 | 2023-11-03 | 山东瀚业机械有限公司 | Single hydraulic prop |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 |