CN203808967U - Supporting device used for underground coal mine fracturing operation - Google Patents
Supporting device used for underground coal mine fracturing operation Download PDFInfo
- Publication number
- CN203808967U CN203808967U CN201420194195.3U CN201420194195U CN203808967U CN 203808967 U CN203808967 U CN 203808967U CN 201420194195 U CN201420194195 U CN 201420194195U CN 203808967 U CN203808967 U CN 203808967U
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- CN
- China
- Prior art keywords
- hydraulic cylinder
- coal mine
- fixed body
- gripper shoe
- fixed
- 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 belongs to the technical field of coal mine gas extraction, and particularly relates to a supporting device used for underground coal mine fracturing operation. The supporting device comprises a horizontal hydraulic cylinder, a cylinder head, a supporting plate, vertical hydraulic cylinders and a fixed body, and is characterized in that the fixed body is located on the supporting plate, the vertical hydraulic cylinders are arranged on the supporting plate, the horizontal hydraulic cylinder penetrates through the fixed body to be fixed, and the cylinder head is fixedly connected to one side of the horizontal hydraulic cylinder through screw threads. The supporting device is simple in structure, stable and reliable, a hole packer is fixed, and it is guaranteed that underground coal mine fracturing construction is smoothly implemented.
Description
Technical field
The utility model belongs to coal mine gas drainage technical field, more specifically to a kind of bracing or strutting arrangement for coal mine underground fracturing operation.
Background technology
How to improve coal mine gas extraction efficiency, become at present a great difficult problem of China's " Gas Outburst " mine, conventional boring method is because of engineering and geological structure factors, cause gas pumping inefficiency, borehole engineering amount is large, labor strength is high, cannot solve the digging of current colliery and take over nervous situation.
Hydraulic fracturing technology is more and more applied to Gas Outburst colliery in recent years, its technology is generally to utilize emulsion pump to carry out high pressure to gas pumping hole at underworkings to pump into operation, but often occur because of pressure in pressing crack construction process excessive, the problem that causes hole packer to be flown by pressure.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of simple in structure, reliable and stable bracing or strutting arrangement that is applicable to coal mine underground fracturing operation is provided.
The utility model solves the technical scheme that its technical problem adopts: a kind of bracing or strutting arrangement for coal mine underground fracturing operation, comprise horizontal hydraulic cylinder 1, cylinder head 2, gripper shoe 3, vertical hydraulic cylinder 4 and fixed body 5, it is characterized in that, fixed body 5 is positioned in gripper shoe 3, gripper shoe 3 is provided with vertical hydraulic cylinder 4, horizontal hydraulic cylinder 1 is rear fixing through fixed body 5, and cylinder head 2 is fixed on horizontal hydraulic cylinder 1 one sides by screwed connection.
Described fixed body 5 is a boss with through hole, is bolted in gripper shoe 3.
After the through hole of described horizontal hydraulic cylinder 1 by fixed body 5, be fixed on fixed body 5.
Described gripper shoe 3 is provided with the steel cast panel of through hole for corner, and vertical hydraulic cylinder 4 is through this through hole and be fixed in gripper shoe 3.
The beneficial effects of the utility model are: simple in structure, stable reliable, fixing hole packer, guarantees coal mine underground fracturing construction enforcement smoothly.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of bracing or strutting arrangement for coal mine underground fracturing operation of the utility model.
In figure: 1, horizontal hydraulic cylinder, 2, cylinder head, 3, gripper shoe, 4, vertical hydraulic cylinder, 5, fixed body.
Detailed description of the invention
As shown in Figure 1, a kind of bracing or strutting arrangement for coal mine underground fracturing operation the utility model proposes, comprise horizontal hydraulic cylinder 1, cylinder head 2, gripper shoe 3, vertical hydraulic cylinder 4 and fixed body 5, it is characterized in that, fixed body 5 is positioned in gripper shoe 3, gripper shoe 3 is provided with vertical hydraulic cylinder 4, and horizontal hydraulic cylinder 1 is rear fixing through fixed body 5, and cylinder head 2 is fixed on horizontal hydraulic cylinder 1 one sides by screwed connection.
Described fixed body 5 is a boss with through hole, is bolted in gripper shoe 3.
After the through hole of described horizontal hydraulic cylinder 1 by fixed body 5, be fixed on fixed body 5, cylinder head 1 is the cylinder body of a upper end fluting.
Described gripper shoe 3 is the steel cast panel that four corners are provided with through hole, and four vertical hydraulic cylinders 4 are respectively through through hole and be fixed on four jiaos of gripper shoe 3.When fracturing work, four vertical hydraulic cylinders 4 strut the roof and floor upper and lower to coal road up and down, play fixed supporting role.
Operating principle: hole packer is installed in behind gas pumping hole, first utilizes the horizontal hydraulic cylinder 1 of this device can prop up hole packer, then strut all vertical hydraulic cylinders 4 to the upper and lower roof and floor of coal road, so just can prevent that hole packer from being pressed and flying between operational period.
You need to add is that, above-described embodiment only illustrates, and the shape of cylinder head 1, gripper shoe 3 can need to change according to actual job, for example also two ends fluting up and down of cylinder head 1, and gripper shoe also can be provided with multiple through holes etc.
Claims (4)
1. the bracing or strutting arrangement for coal mine underground fracturing operation, comprise horizontal hydraulic cylinder (1), cylinder head (2), gripper shoe (3), vertical hydraulic cylinder (4) and fixed body (5), it is characterized in that, fixed body (5) is positioned in gripper shoe (3), gripper shoe (3) is provided with vertical hydraulic cylinder (4), horizontal hydraulic cylinder (1) is through fixing after fixed body (5), and cylinder head (2) is fixed on horizontal hydraulic cylinder (1) one side by screwed connection.
2. a kind of bracing or strutting arrangement for coal mine underground fracturing operation according to claim 1, is characterized in that, described fixed body (5) is a boss with through hole, is bolted in gripper shoe (3).
3. a kind of bracing or strutting arrangement for coal mine underground fracturing operation according to claim 1, is characterized in that, after the through hole of described horizontal hydraulic cylinder (1) by fixed body (5), is fixed on fixed body (5).
4. a kind of bracing or strutting arrangement for coal mine underground fracturing operation according to claim 1, is characterized in that, described gripper shoe (3) is provided with the steel cast panel of through hole for corner, and vertical hydraulic cylinder (4) is through this through hole and be fixed in gripper shoe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194195.3U CN203808967U (en) | 2014-04-21 | 2014-04-21 | Supporting device used for underground coal mine fracturing operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194195.3U CN203808967U (en) | 2014-04-21 | 2014-04-21 | Supporting device used for underground coal mine fracturing operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203808967U true CN203808967U (en) | 2014-09-03 |
Family
ID=51447740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420194195.3U Expired - Fee Related CN203808967U (en) | 2014-04-21 | 2014-04-21 | Supporting device used for underground coal mine fracturing operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203808967U (en) |
-
2014
- 2014-04-21 CN CN201420194195.3U patent/CN203808967U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 |