CN202417538U - Large-route single body hydraulic support - Google Patents
Large-route single body hydraulic support Download PDFInfo
- Publication number
- CN202417538U CN202417538U CN2012200468639U CN201220046863U CN202417538U CN 202417538 U CN202417538 U CN 202417538U CN 2012200468639 U CN2012200468639 U CN 2012200468639U CN 201220046863 U CN201220046863 U CN 201220046863U CN 202417538 U CN202417538 U CN 202417538U
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- middle cylinder
- outer shell
- piston
- top cover
- post
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Abstract
The utility model discloses a large-route single body hydraulic support and relates to mining equipment. The large-route single body hydraulic support comprises a top cover, a sealing cover, a movable column, a middle cylinder, a middle cylinder piston, an outer cylinder, an outer cylinder piston, a handle body, a three-purpose valve and a base. The three-purpose valve is mounted on the handle body and a transfusion hole is formed on the base; and the three-purpose valve is communicated with the inner cavities of the movable column and the middle cylinder through a liquid inlet pipe and the transfusion hole. A liquid inlet pipe cover is arranged outside the liquid inlet pipe and the liquid inlet pipe is not damaged by flying stones and is not damaged in a transportation process. When the column is lifted, the three-purpose valve is operated; high-pressure liquid enters the inner cavities of the movable column and the middle cylinder through the liquid inlet pipe and the transfusion hole to push the middle cylinder, the middle cylinder piston, the movable column and the top cover to be moved upwards until the top cover is contacted with a tunnel top, so as to achieve the aim of supporting. The three-purpose valve is mounted on the handle body and the height of the handle body is not higher than that of a human body, so that the operation is convenient. A double-retracting oil cylinder is adopted and the retracting distance of the top cover is great when the support is used for supporting a lower coal layer, so that the problem that the column cannot be returned due to the condition that the coal layer is pressed by top plate settling is avoided.
Description
Technical field
The utility model relates to a kind of mining equiment, is specifically related to the big stroke hydraulic prop that supporting is used under the coal mine.
Background technology
When hydraulic prop uses under coal mine, in the coal-face back production supporting process, because the thick variation of coal is big, need change individual prop continually, labor strength is big, influences problems such as single face output.Also need the individual prop of subsequent use various differing heights, equipment has high input.The general way that solves is to adopt two extension single hydraulic props.Two extension single hydraulic props of colliery mining face under mine use at present, its fluid injection triple-use valve is installed in the upper end of post alive, and when hydraulic prop raise, triple-use valve was also followed post alive and is raise.With upper supporting column, surpass human body height, on-the-spot fluid injection operating difficulties for 2 meters of height.For sprag, the post stroke of living is little, occurs pillar easily and is killed by top board, can't prop drawing.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of big stroke hydraulic prop, and triple-use valve is installed on the handgrip body, makes infusion hole on the base, and triple-use valve connects through the rodless cavity of feed tube and infusion hole and middle cylinder and outer shell.
The utility model is sent out realization through following technology: a kind of big stroke hydraulic prop, it comprises: top cover, seal cover, live post, middle cylinder, middle cylinder piston, outer shell, outer shell piston, handgrip body, triple-use valve and base.Described top cover and seal cover are fixed on the upper end of post alive through elastic cylindrical pin, cylinder piston during install the lower end of the post of living, and middle cylinder piston is connected with the hole wall of middle cylinder with sealing ring through guide ring.Cylinder cap during the cylinder upper end is provided with in described, described middle cylinder cap is connected with the cylindrical of dust ring with the post of living through guide ring.The outer shell piston is installed in the lower end of middle cylinder, and described outer shell piston is connected with the hole wall of outer shell with sealing ring through guide ring.Described outer shell upper end is provided with the handgrip body.Described base is installed in the lower end of outer shell; It is characterized in that: described triple-use valve is installed on the handgrip body, makes infusion hole on the described base, and triple-use valve connects through the inner chamber of feed tube and infusion hole and live post and middle cylinder.
Described feed tube outer setting feed tube guard shield, described feed tube guard shield is the camber plate, two sides of camber plate are fixed on the external cylindrical surface of outer shell.
The good effect of the utility model is:
1, triple-use valve fluid injection position is moved on the handgrip body by the post upper end of living, increased the stroke of post alive, fluid injection gun does not increase with the rising of the post of living during fluid injection.Solved high pillar fluid injection difficulty, sprag be prone to be killed by crushing can't prop drawing problem.
2, feed tube outer setting feed tube guard shield, feed tube can not receive slungshot and wound, and can when carrying, not break yet, and is safe and reliable.
Description of drawings
Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.
Fig. 1 is the utility model structural representation.
Fig. 2 is the A--A sectional drawing of Fig. 1.
Among the figure: 1, top cover, 2, elastic cylindrical pin, 3, seal cover, 4, back-moving spring, 5, middle cylinder cap; 6, the post of living, 7, middle cylinder, 8, triple-use valve, 9, the handgrip body; 10, sealing ring, 11, feed tube, 12, the feed tube guard shield, 13, outer shell; 14, middle cylinder piston, 15, the outer shell piston, 16, base, 16-1, infusion hole.
The specific embodiment
Like Fig. 1, shown in Figure 2: a kind of big stroke hydraulic prop, it comprises: top cover 1, seal cover 3, live post 6, middle cylinder 7, middle cylinder piston 14, outer shell 13, outer shell piston 15, handgrip body 9, triple-use valve 8 and base 16.Described top cover 1 and seal cover 3 are fixed on the upper end of post 6 alive through elastic cylindrical pin 2, cylinder piston 14 during install the lower end of the post 6 of living, and middle cylinder piston 14 is connected with the hole wall of sealing ring with middle cylinder 7 through guide ring.Cylinder cap 5 during cylinder 7 upper ends are provided with in described, described middle cylinder cap 5 is connected with the cylindrical of dust ring with the post 6 of living through guide ring.Outer shell piston 15 is installed in the lower end of middle cylinder 7, and described outer shell piston 15 is connected with the hole wall of sealing ring with outer shell 13 through guide ring.Described outer shell 13 upper ends are provided with handgrip body 9, and described base 16 is installed in the lower end of outer shell 13.It is characterized in that: described triple-use valve 8 is installed on the handgrip body 9, makes infusion hole 16-1 on the described base 16,
Triple-use valve 8 connects with the inner chamber of live post 6 and middle cylinder 7 with infusion hole 16-1 through feed tube 11.
Described feed tube 11 outer setting feed tube guard shields 12, described feed tube guard shield 12 is the camber plate, two sides of camber plate are fixed on the external cylindrical surface of outer shell 13.Feed tube 11 can not receive slungshot and wound, and can when carrying, not break yet, and is safe and reliable.
Like Fig. 1, shown in Figure 2: during setting prop; Manual operations triple-use valve 8, highly pressurised liquid moves on the cylinder 7 at first promoting by the inner chamber that feed tube 11 and infusion hole 16-1 get into live post 6 and middle cylinder 7; Because outer shell piston 15 is by connecting fixation with steel wire in middle cylinder 7 lower ends; Cylinder piston 14 moved simultaneously together with middle cylinder 7, middle cylinder piston 14, live post 6, seal cover 3 and top cover 1 during outer shell piston 15 promoted, and ran into back until top cover 1, reached the purpose of supporting.Because triple-use valve 8 is installed on the handgrip body 8, the height of handgrip body 8 generally can not be higher than the human body height, and is easy to operate.
Adopt two telescopic oil cylinders, during supporting, top cover retraction distance is big, can not kill because of being crushed in low coal seam, cause can't prop drawing problem.
Claims (2)
1. one kind big stroke hydraulic prop, it comprises: top cover (1), seal cover (3), live post (6), middle cylinder (7), middle cylinder piston (14), outer shell (13), outer shell piston (15), handgrip body (9), triple-use valve (8) and base (16); Described top cover (1) and seal cover (3) are fixed on the upper end of post alive (6) through elastic cylindrical pin (2), cylinder piston (14) during install the lower end of the post (6) of living, and middle cylinder piston (14) is connected with the hole wall of sealing ring with middle cylinder (7) through guide ring; Cylinder cap (5) during cylinder (7) upper end is provided with in described, described middle cylinder cap (5) is connected with the cylindrical of dust ring with the post (6) of living through guide ring; Outer shell piston (15) is installed in the lower end of middle cylinder (7), and described outer shell piston (15) is connected with the hole wall of sealing ring with outer shell (13) through guide ring; Described outer shell (13) upper end is provided with handgrip body (9); Described base (16) is installed in the lower end of outer shell (13); It is characterized in that: described triple-use valve (8) is installed on the handgrip body (9); Described base (16) is gone up and is made infusion hole (16-1), and triple-use valve (8) connects through the inner chamber of feed tube (11) and infusion hole (16-1) and live post (6) and middle cylinder (7).
2. big stroke hydraulic prop according to claim 1 is characterized in that: described feed tube (11) outer setting feed tube guard shield (12); Described feed tube guard shield (12) is the camber plate, and two sides of camber plate are fixed on the external cylindrical surface of outer shell (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200468639U CN202417538U (en) | 2012-02-14 | 2012-02-14 | Large-route single body hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200468639U CN202417538U (en) | 2012-02-14 | 2012-02-14 | Large-route single body hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202417538U true CN202417538U (en) | 2012-09-05 |
Family
ID=46742311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200468639U Expired - Fee Related CN202417538U (en) | 2012-02-14 | 2012-02-14 | Large-route single body hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202417538U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244152A (en) * | 2013-05-15 | 2013-08-14 | 淮南郑煤机舜立机械有限公司 | Hydraulic prop |
| 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 |
| CN106593496A (en) * | 2016-12-09 | 2017-04-26 | 太原科技大学 | Filling type hollow hydraulic support device |
| CN108286449A (en) * | 2018-03-02 | 2018-07-17 | 中煤北京煤矿机械有限责任公司 | Hydraulic support column bends into the protective device of liquid pipe with spiral |
-
2012
- 2012-02-14 CN CN2012200468639U patent/CN202417538U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244152A (en) * | 2013-05-15 | 2013-08-14 | 淮南郑煤机舜立机械有限公司 | Hydraulic prop |
| 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 |
| CN106593496A (en) * | 2016-12-09 | 2017-04-26 | 太原科技大学 | Filling type hollow hydraulic support device |
| CN106593496B (en) * | 2016-12-09 | 2018-12-07 | 太原科技大学 | The hollow hydraulic prop device of filled type |
| CN108286449A (en) * | 2018-03-02 | 2018-07-17 | 中煤北京煤矿机械有限责任公司 | Hydraulic support column bends into the protective device of liquid pipe with spiral |
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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: 20120905 Termination date: 20130214 |