CN2828314Y - Expansion hydraulic link mechanism for hydraulic support - Google Patents
Expansion hydraulic link mechanism for hydraulic support Download PDFInfo
- Publication number
- CN2828314Y CN2828314Y CN 200520079206 CN200520079206U CN2828314Y CN 2828314 Y CN2828314 Y CN 2828314Y CN 200520079206 CN200520079206 CN 200520079206 CN 200520079206 U CN200520079206 U CN 200520079206U CN 2828314 Y CN2828314 Y CN 2828314Y
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- hydraulic
- connecting rod
- expansion links
- links
- hinged
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Abstract
The utility model relates to a roof caving coal hydraulic support and a slicing mesh positioning hydraulic support used for a thick coal seam roof caving mining method and a slicing method with various forms, particularly an expansion hydraulic link mechanism of the hydraulic supports, which comprises a top beam (8), a shield beam (1), a base (2) and connecting links. The utility model is characterized in that the connecting links are two hydraulic expansion links (3, 4). The upper ends of the hydraulic expansion links are hinged with the shield beam, and the lower ends of the hydraulic expansion links are hinged with the base. The hydraulic expansion links are composed of outer sleeves (5), hydraulic cylinders (6) and movable columns (7). The hydraulic cylinders are arranged in the outer sleeves. The movable columns are arranged on the front ends of the hydraulic cylinders. The hydraulic cylinders are connected with the outer sleeves by long keys (9). The adjustment of the tail spaces of the hydraulic supports can be realized by the adjustment of the length of the hydraulic expansion links. The installation and the maintenance are convenient, the fluent ventilation of a ventilation end surface is ensured, the gas accumulation is avoided and the production operation can be smoothly carried out.
Description
Technical field the utility model relates to a kind of coal mining machinery, be to be used for various forms of caving roof coal hydraulic supports and the separate zone production lapping hydraulic bracket that high seam caving coal-mining method and separate zone production method are used, the scalable hydraulic connecting rod of a kind of specifically hydraulic support mechanism.
Background technology is present, and various comprehensive mining hydraulic brackets all adopt the quadric chain of double pendulum rod type or single wobbling pole mechanism to be used for keeping the near normal rectilinear motion of set cap and the stability of entire bracket.Caving roof coal hydraulic support and separate zone production lapping hydraulic bracket all require the support afterbody to have bigger space to be used to place rear portion drag conveyor or net laying mechanism.But, the space that the quadric chain of the employed double pendulum rod type of prior art or the rigidity linkage of single wobbling pole mechanism have but limited afterbody, the installation, operation and maintenance that causes rear portion equipment be difficulty relatively; And narrow and small after ventilation end face can cause ventilation not smooth, and operation stops owing to local gas gathers producing through regular meeting in high gas layer.
Utility model content the purpose of this utility model is to provide that a kind of length of connecting rod can be regulated, the supporting structure size minimizes when carrying, the maximization of production operation trailing space, guarantee the ventilation end face smooth scalable hydraulic connecting rod of the hydraulic support mechanism of ventilating.
In order to realize described purpose, the technical solution adopted in the utility model is: the scalable hydraulic connecting rod of a kind of hydraulic support mechanism, comprise back timber, caving shield, base, connecting rod, it is characterized in that: described connecting rod is two hydraulically extensible connecting rods, the upper end and the caving shield of hydraulically extensible connecting rod are hinged, and the lower end and the base of hydraulically extensible connecting rod are hinged.
The utility model has the following advantages compared with the prior art:
1, by regulating the length of scalable hydraulic connecting rod, can realize regulating the space of hydraulic support afterbody;
2, realize that the supporting structure size minimizes, the maximization of production operation trailing space when carrying; Convenient for installation and maintenance, it is smooth to guarantee that the ventilation end face ventilates, and avoids methane accumulation, and the assurance production operation is carried out smoothly.
Description of drawings Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of hydraulically extensible connecting rod;
Fig. 3 is an A-A sectional drawing among Fig. 2.
The specific embodiment is as shown in Figure 1: the scalable hydraulic connecting rod of a kind of hydraulic support mechanism, mainly form by back timber 8, caving shield 1, base 2, two hydraulically extensible connecting rods 3,4, the upper end and the caving shield 1 of hydraulically extensible connecting rod 3,4 are hinged, and the lower end and the base 2 of hydraulically extensible connecting rod 3,4 are hinged; Dotted portion among the figure is represented the state of caving shield 1 in the lifting process.Hydraulically extensible connecting rod 3 is the same with 4 structure.Referring to Fig. 2 and Fig. 3: hydraulically extensible connecting rod 3 is made up of outer sleeve 5, double-acting hydraulic cylinder 6 and the post 7 of living, and hydraulic cylinders 6 are installed in the outer sleeve 5, and hydraulic cylinder 6 front ends are installed post 7 alive, and hydraulic cylinder 6 is connected with the long key 9 of outer sleeve 5 by two symmetries; Thereby make hydraulic cylinder 6 flexible in cooperating under the guiding of long key 9, the purpose that realizes regulating the hydraulic support trailing space with outer sleeve 5.When hydraulic cylinder 6 contracts to least limit or handling process, is connected by steady pin 10 between live post 7 and the outer sleeve 5, with protect the hydraulic connecting rod 3,4 that stretches firmly.
Claims (3)
1, the scalable hydraulic connecting rod of a kind of hydraulic support mechanism, comprise back timber, caving shield, base, connecting rod, it is characterized in that: described connecting rod is two hydraulically extensible connecting rods (3,4), the upper end and the described caving shield (1) of described hydraulically extensible connecting rod (3,4) are hinged, and the lower end and the described base (2) of described hydraulically extensible connecting rod (3,4) are hinged.
2, the scalable hydraulic connecting rod of a kind of hydraulic support as claimed in claim 1 mechanism is characterized in that: described hydraulically extensible connecting rod (3,4) is made up of outer sleeve (5), hydraulic cylinder (6) and the post (7) of living; Described hydraulic cylinder (6) is installed in the described outer sleeve (5), and described hydraulic cylinder (6) front end is installed described post alive (7), and described hydraulic cylinder (6) is connected by long key (9) with described outer sleeve (5).
3, the scalable hydraulic connecting rod of a kind of hydraulic support as claimed in claim 2 mechanism is characterized in that: be connected by steady pin (10) between described post alive (7) and the described outer sleeve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520079206 CN2828314Y (en) | 2005-08-04 | 2005-08-04 | Expansion hydraulic link mechanism for hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520079206 CN2828314Y (en) | 2005-08-04 | 2005-08-04 | Expansion hydraulic link mechanism for hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2828314Y true CN2828314Y (en) | 2006-10-18 |
Family
ID=37079871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520079206 Expired - Fee Related CN2828314Y (en) | 2005-08-04 | 2005-08-04 | Expansion hydraulic link mechanism for hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2828314Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871355A (en) * | 2010-06-10 | 2010-10-27 | 中煤北京煤矿机械有限责任公司 | Four post support shield type large mining height mesh-placement hydraulic support |
| CN101886547A (en) * | 2010-06-10 | 2010-11-17 | 中煤北京煤矿机械有限责任公司 | Two-pier shielding type large mining height lapping hydraulic bracket |
-
2005
- 2005-08-04 CN CN 200520079206 patent/CN2828314Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871355A (en) * | 2010-06-10 | 2010-10-27 | 中煤北京煤矿机械有限责任公司 | Four post support shield type large mining height mesh-placement hydraulic support |
| CN101886547A (en) * | 2010-06-10 | 2010-11-17 | 中煤北京煤矿机械有限责任公司 | Two-pier shielding type large mining height lapping hydraulic bracket |
| CN101871355B (en) * | 2010-06-10 | 2013-02-13 | 中煤北京煤矿机械有限责任公司 | Four post support shield type large mining height mesh-placement hydraulic support |
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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 |
Granted publication date: 20061018 Termination date: 20140804 |
|
| EXPY | Termination of patent right or utility model |