CN201198762Y - Equal cylinder diameter double-telescoping single hydraulic prop - Google Patents
Equal cylinder diameter double-telescoping single hydraulic prop Download PDFInfo
- Publication number
- CN201198762Y CN201198762Y CNU200820098297XU CN200820098297U CN201198762Y CN 201198762 Y CN201198762 Y CN 201198762Y CN U200820098297X U CNU200820098297X U CN U200820098297XU CN 200820098297 U CN200820098297 U CN 200820098297U CN 201198762 Y CN201198762 Y CN 201198762Y
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- CN
- China
- Prior art keywords
- oil cylinder
- post
- cylinder
- living
- prop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides an equal cylinder bore double shrinking hydraulic prop, which mainly uses a coal face supporting top plate. The hydraulic prop comprises an oil cylinder, a mobile column, a base (10), a top cover (1), a closing cap (2), a handlebar (4), a three-way valve (12) and a connection sleeve (6). The upper cylinder end is fixed and sheathed with the handlebar (4). The mobile column is installed inside the oil cylinder. The three-way valve (12) is installed on the connection sleeve (6). The injection liquid can have proper height by using the design. The same injection liquid height of the columns with various models can be ensured. The oil cylinder comprises an upper oil cylinder (5) and a lower oil cylinder (7) with the equal diameter. The fitting fabrication and assembling difficulty is decreased, and the cost is reduced. The upper oil cylinder (5) and the lower oil cylinder (7) are connected with each other through the connection sleeve (6). The equal cylinder bore double shrinking hydraulic prop also increases the travel distance of the prop. The effect of one prop with multiple functions can be achieved when the prop is used in the coal face with the thickness of coal seam which changes greatly.
Description
Technical field
The utility model relates to a kind of two extension single hydraulic props of cylinder diameter that wait.
Background technology
Hydraulic prop is the supporting support apparatus of the high-grade conventional face in colliery, and it mainly supplies the coal-face supporting roof, or for comprehensive mechanical coal mining face end supporting and temporary supporting.
Most widely used in the market pair of extension single hydraulic prop is the DWS type.This pair extension single hydraulic prop, comprise oil cylinder, post alive, base, top cover, handgrip body, triple-use valve and adapter sleeve, wherein overlap described handgrip body admittedly on the cylinder mouth of the upper end of upper cylinder, described post alive is housed in this oil cylinder, described triple-use valve is contained on the described adapter sleeve.The shortcoming of DWS t shore is: (one), triple-use valve are located on the column cap of post alive, and triple-use valve raises with the post of living when the post of living raises, and operator's hand also must be followed rising, inconvenient operation, and safety is unreliable.When operating difficulties when mining height uses greater than 2 meters coal-face.(2), the DWS t shore adopts large and small piston, outer shell, middle cylinder, size specification is different, has increased difficulty to accessory manufacturing and assembling, has also increased product cost.(3), the DWS t shore is owing to adopt the twin-tub structure, middle cylinder damages easily at explosion coal-falling and when cutting the top, causes the prop drawing difficulty, in addition its less stable.
The utility model content
The purpose of this utility model provides a kind of two extension single hydraulic props of cylinder diameter that wait, the lower cylinder body and the post of living are for dividing body structure on it, and diameter of cylinder equates up and down, last lower cylinder body connects by adapter sleeve, therefore the pillar part of various different sizes all can be general, exchange, and it is more convenient to operate, safe and reliable.
In order to achieve the above object, the utility model provides a kind of two extension single hydraulic props of cylinder diameter that wait, comprise oil cylinder, post alive, base, top cover, seal cover, handgrip body, triple-use valve and adapter sleeve, wherein on the cylinder mouth of the upper end of upper cylinder, overlap described handgrip body admittedly, described post alive is housed in this oil cylinder, and described triple-use valve is contained on the described adapter sleeve.Described oil cylinder is made of isodiametric upper cylinder and following oil cylinder, has reduced the difficulty of accessory manufacturing and assembling, and has reduced cost.Described upper cylinder links to each other by adapter sleeve with following oil cylinder, and the pillar part of convenient various different sizes all can be general, exchange, and it is more convenient to operate, and is safe and reliable.
The post of living down is housed in described oil cylinder down, the lower end of this time post alive is installed on the described base, the post of living is housed in described upper cylinder, should go up the live upper end of post is passed described handgrip body and is linked to each other with described top cover, and described triple-use valve communicates with the described inner chamber of going up live post and following post alive by the transverse holes on the described adapter sleeve.
Described lower end and the following upper end outer wall of living post of going up the post of living is provided with cannelure, and the bottom land of described cannelure is provided with the liquid injection hole that communicates with the post inner chamber of living, and " F " RunddichtringO is housed in described cannelure.
On described adapter sleeve triple-use valve is installed, this triple-use valve communicates with the post inner chamber of living by described transverse holes.Triple-use valve is located on the adapter sleeve, and fluid injection is highly suitable, guarantees that the fluid injection of all size model pillar is highly identical, and the workman operates easily, and is safe and reliable.
The novel effect of this use is: wait the upper cylinder of the two extension single hydraulic props of cylinder diameter and following cylinder diameter to equate, reduce accessory specification kind, reduced the manufacturing cost of difficulty of processing and pillar, and adopted the adapter sleeve connection, the pillar part of various different sizes all can be general, exchanges.This new t shore dismounting, the maintenance very convenient, fundamentally avoided the disadvantage that whole pillar is scrapped owing to local damage.Triple-use valve is located on the adapter sleeve, and fluid injection is highly suitable, guarantees that the fluid injection of all size model pillar is highly identical, and the workman operates easily, and is safe and reliable.The two extension single hydraulic props of these cylinder diameters have also increased the stroke of pillar, and the coal-face very big in Coal Seam Thickness Change uses, and can reach the effect that a post is used more, thereby have reduced the quantity of standby pillar and the time of replacing pillar.
Description of drawings
Fig. 1 is a structure chart of the present utility model;
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1:
The two extension single hydraulic props of these cylinder diameters, comprise oil cylinder, post alive, base 10, top cover 1, seal cover 2, handgrip body 4, triple-use valve 12 and adapter sleeve 6, wherein on the cylinder mouth of the upper end of oil cylinder, overlap described handgrip body 4 admittedly, described post alive is housed in this oil cylinder, described triple-use valve 12 is contained on the described adapter sleeve 6, described oil cylinder is made of isodiametric upper cylinder 5 and following oil cylinder 7, has reduced the difficulty of accessory manufacturing and assembling, and has reduced cost.Described upper cylinder 5 and following oil cylinder 7 link to each other by adapter sleeve, and the pillar part of convenient various different sizes all can be general, exchange, and it is more convenient to operate, and be safe and reliable.
The post 8 of living down is housed in described oil cylinder 7 down, the lower end of this time post 8 alive is installed on the described base 10, the post 3 of living is housed in described upper cylinder 5, should go up the live upper end of post 3 is passed described handgrip body 4 and is linked to each other with described top cover 1, and described triple-use valve 12 communicates with the described inner chamber of going up live post 3 and following post 8 alive by the transverse holes 6a on the described adapter sleeve 6.Adopt this design, fluid injection is highly suitable, guarantees that the fluid injection of all size model pillar is highly identical, and the workman operates easily, and is safe and reliable.
Described lower end and the following upper end outer wall of living post 8 of going up the post 3 of living is provided with cannelure, and the bottom land of described cannelure is provided with the liquid injection hole b that communicates with the post inner chamber of living, and " F " RunddichtringO is housed in described cannelure.
Claims (2)
1. one kind is waited the two extension single hydraulic props of cylinder diameter, comprise oil cylinder, post alive, base (10), top cover (1), seal cover (2), handgrip body (4), triple-use valve (12) and adapter sleeve (6), wherein on the cylinder mouth of the upper end of upper cylinder (5), overlap described handgrip body (4) admittedly, described post alive is housed in this oil cylinder, described triple-use valve (12) is contained on the described adapter sleeve (6), it is characterized in that: described oil cylinder is made of isodiametric upper cylinder (5) and following oil cylinder (7), and upper cylinder (5) links to each other through adapter sleeve (6) with following oil cylinder (7), the post (8) of living down is housed in described oil cylinder (7) down, the lower end of this time post alive (8) is installed on the described base (10), the post (3) of living is housed in described upper cylinder (5), should go up the live upper end of post (3) is passed described handgrip body (4) and is linked to each other with described top cover (1), and described triple-use valve (12) communicates by the inner chamber of the transverse holes (6a) on the described adapter sleeve (6) with described post (3) alive and following post alive (8).
2. according to the described two extension single hydraulic props of cylinder diameter that wait of claim 1, it is characterized in that: described lower end and the following upper end outer wall of living post (8) of going up the post (3) of living is provided with cannelure, the bottom land of described cannelure is provided with the liquid injection hole (b) that communicates with the post inner chamber of living, and " F " RunddichtringO is housed in described cannelure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820098297XU CN201198762Y (en) | 2008-05-15 | 2008-05-15 | Equal cylinder diameter double-telescoping single hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820098297XU CN201198762Y (en) | 2008-05-15 | 2008-05-15 | Equal cylinder diameter double-telescoping single hydraulic prop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201198762Y true CN201198762Y (en) | 2009-02-25 |
Family
ID=40449918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820098297XU Expired - Fee Related CN201198762Y (en) | 2008-05-15 | 2008-05-15 | Equal cylinder diameter double-telescoping single hydraulic prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201198762Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213100A (en) * | 2011-06-28 | 2011-10-12 | 马文龙 | Hydraulic prop capable of outputting constant force and repressing method |
-
2008
- 2008-05-15 CN CNU200820098297XU patent/CN201198762Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213100A (en) * | 2011-06-28 | 2011-10-12 | 马文龙 | Hydraulic prop capable of outputting constant force and repressing method |
| CN102213100B (en) * | 2011-06-28 | 2013-08-28 | 马文龙 | Hydraulic prop capable of outputting constant force and repressing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chongqing Tianjucheng Machinery Manufacturing Co. Ltd. Assignor: Wang Jie Contract record no.: 2012500000056 Denomination of utility model: Equal cylinder diameter double-telescoping single hydraulic prop Granted publication date: 20090225 License type: Exclusive License Record date: 20120703 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090225 Termination date: 20140515 |