CN201714415U - Hydraulic support with foldable type connecting rod - Google Patents
Hydraulic support with foldable type connecting rod Download PDFInfo
- Publication number
- CN201714415U CN201714415U CN2010202123446U CN201020212344U CN201714415U CN 201714415 U CN201714415 U CN 201714415U CN 2010202123446 U CN2010202123446 U CN 2010202123446U CN 201020212344 U CN201020212344 U CN 201020212344U CN 201714415 U CN201714415 U CN 201714415U
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- CN
- China
- Prior art keywords
- connecting rod
- back timber
- hydraulic support
- type connecting
- foldable type
- 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 relates to a hydraulic support with a foldable type connecting rod. The hydraulic support comprises a top beam, a bottom beam, a hydraulic prop arranged between the top and the bottom beams, and the like. The foldable type connecting rod is connected between the top and the bottom beams, different sections of the foldable type connecting rod is hinged through a jointed shaft, and the jointed shaft is vertical to the center lines of the top and the bottom beams. The foldable type connecting rod can redesigned to be composed of more than two sections as required. Compared with the prior art, the utility model has the following advantage: the connection point of the foldable type connecting rod and the top beam and the connection point of the foldable type connecting rod and the bottom beam are redistributed in such a way that the arm of force between any point on the top or the bottom beam of the support and the stress point on the connecting rod is reduced and that the application points between the connecting rod and the top beam as well as between the connecting rod and the bottom beam are distributed more reasonably, thereby stabilizing the top and the bottom beams. Moreover, the utility model has the advantages of cost efficiency, small volume, light weight, safe and reliable use.
Description
Technical field
The utility model relates to coal underground mining support apparatus, is specifically related to the light hydraulic support that stope uses under a kind of coal mine, belongs to International Classification of Patents E21D technical field.
Background technology
Need to use support apparatus in the stope of coal mines technology, generally use hydraulic support.And some hydraulic supports that use at present exist deficiency on structure design, cause labour intensity higher, and bulking value is bigger than normal, is having much room for improvement aspect production efficiency and the security performance.
Summary of the invention
The purpose of this utility model is to remedy deficiency of the prior art, and a kind of economical and practical, light hydraulic support---collapsible connecting rod hydraulic support that volume is little, in light weight, safe and reliable is provided.
The purpose of this utility model is achieved through the following technical solutions.
A kind of collapsible connecting rod hydraulic support comprises back timber and bottom girder, between back timber and bottom girder hydraulic prop is arranged, and is provided with collapsible connecting rod and is connected between back timber and the bottom girder, and is hinged by jointed shaft between each of collapsible connecting rod section; The jointed shaft of collapsible connecting rod is perpendicular to the center line of back timber and bottom girder.Collapsible connecting rod can be two sections folding or folding connections of multistage as required.
The utility model makes the performance of support apparatus in coal mine further perfect, remedied the deficiency that some hydraulic supports of present use exist on technology, structure, integrated use multidisciplinary theories such as the mechanics of materials, theoretical mechanics, structural mechanics, coal mining, develop a kind of economical and practical, light hydraulic support that volume is little, in light weight, safe and reliable.Support apparatus under the coal mine is developed towards the direction of low labour intensity, high efficiency and high safety performance.
Description of drawings
Fig. 1 is a supporting structure schematic diagram of the present utility model;
Schematic diagram when Fig. 2 launches for the utility model support.
Among the figure: 1, hydraulic prop, 2, back timber, 3, the front stretching beam, 4, the back screen beam, 5, side guard board, 6, the front stretching oil cylinder, 7, the pushing and sliding oil cylinder, 8, connecting rod, 9, collapsible connecting rod, 10, collapsible rod hinge connection axle, 11, bottom girder.
The specific embodiment
Referring to Fig. 1, Fig. 2, collapsible connecting rod hydraulic support comprises back timber 2 and bottom girder 11, and hydraulic prop 1 is arranged between back timber and bottom girder, is provided with collapsible connecting rod 9 and is connected between back timber 2 and the bottom girder 11, and is hinged by jointed shaft 10 between each section of collapsible connecting rod 9; The jointed shaft 10 of collapsible connecting rod is perpendicular to the center line of back timber and bottom girder.Collapsible connecting rod 9 can be two sections collapsible connections or the collapsible connection of multistage.Back timber 2 front ends have front stretching beam 3, side guard board 5 are arranged below the back timber 2, and the rear end of back timber 2 connects back screen beam 4, and back screen beam 4 is axle with connecting rod 8 and flexibly connects; The front end of bottom girder 11 connects pushing and sliding oil cylinder 7.
When support launched, the collapsible connecting rod 9 that is articulated and connected with back timber 2, bottom girder 11 increased along with the height of support and progressively launches; When support was regained, because the height of support reduces, collapsible connecting rod 9 was progressively regained into rugosity.No matter support is to launch or regain, no matter owing to still lean on hinge axis 10 to be connected between connecting rod 9 and back timber 2, the bottom girder 11 between collapsible connecting rod 9 each folding segmentations, jointed shaft 10 is all the time perpendicular to the center line of hydraulic support back timber, bottom girder.So no matter collapsible connecting rod 9 under which kind of state, can not change the stablizing effect of safeguarding support.Simultaneously, the tie point of collapsible connecting rod 9 and back timber, bottom girder, more reasonable than the tie point distribution of conventional linkage mechanism.Particularly, more forward to propping up the distribution of tie point on whole back timber 2 of erecting stabilization, the arbitrfary point on the back timber 2 further dwindles to the distance between between fixed connection point, and the arbitrfary point on the back timber 2 also further reduces to the arm of force between fixed point.Therefore, better to the stablizing effect of set cap.
The utility model has solved because stress point redistributes the variation of the structural stability aspect that is produced, and influences the problem that support section operating space reduces.Therefore, the collapsible connecting rod 9 that plays stabilization is designed to folded form.When the height of this collapsible connecting rod hydraulic support changed, collapsible connecting rod 9 can be regulated by folding device.Because collapsible connecting rod 9 is to realize that by articulated manner connecting rod and back timber, bottom girder and each save being connected between the connecting rod, jointed shaft 10 is forever perpendicular to the center line of the top bottom girder of support, so can not influence the stability of support in the process of regulating support height.Therefore, the articulated linkage mechanism of collapsible connecting rod hydraulic support can not only equally guarantee the stable of hydraulic support with traditional four connection-rod support, but can make hydraulic support have bigger operating space again.
Claims (4)
1. collapsible connecting rod hydraulic support, comprise back timber (2) and bottom girder (11), hydraulic prop (1) is arranged between back timber and bottom girder, it is characterized in that: be provided with collapsible connecting rod (9) and be connected between back timber (2) and the bottom girder (11), hinged between each section of collapsible connecting rod (9) by jointed shaft (10); The jointed shaft of this collapsible connecting rod (10) is perpendicular to the center line of back timber and bottom girder.
2. collapsible connecting rod hydraulic support according to claim 1, it is characterized in that: the front end of back timber (2) has front stretching beam (3), side guard board (5) is arranged below the back timber (2), and the rear end of back timber (2) connects back screen beam (4), and back screen beam (4) is axle with connecting rod (8) and flexibly connects.
3. collapsible connecting rod hydraulic support according to claim 1 is characterized in that: the front end of bottom girder (11) connects pushing and sliding oil cylinders (7).
4. collapsible connecting rod hydraulic support according to claim 1 is characterized in that: described collapsible connecting rod (9) can be two periods folding connections or the folding connection of multistage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202123446U CN201714415U (en) | 2010-06-02 | 2010-06-02 | Hydraulic support with foldable type connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202123446U CN201714415U (en) | 2010-06-02 | 2010-06-02 | Hydraulic support with foldable type connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201714415U true CN201714415U (en) | 2011-01-19 |
Family
ID=43460413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202123446U Expired - Fee Related CN201714415U (en) | 2010-06-02 | 2010-06-02 | Hydraulic support with foldable type connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201714415U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373939A (en) * | 2011-10-27 | 2012-03-14 | 山西晋煤集团金鼎煤机矿业有限责任公司 | Light hydraulic bracket for shortwall face |
| CN102373939B (en) * | 2011-10-27 | 2016-12-14 | 山西晋煤集团金鼎煤机矿业有限责任公司 | Light hydraulic bracket for shortwall face |
-
2010
- 2010-06-02 CN CN2010202123446U patent/CN201714415U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373939A (en) * | 2011-10-27 | 2012-03-14 | 山西晋煤集团金鼎煤机矿业有限责任公司 | Light hydraulic bracket for shortwall face |
| CN102373939B (en) * | 2011-10-27 | 2016-12-14 | 山西晋煤集团金鼎煤机矿业有限责任公司 | Light hydraulic bracket for shortwall face |
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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: 20110119 Termination date: 20110602 |