CN2811570Y - Rear telescopic beam for hydraulic support - Google Patents
Rear telescopic beam for hydraulic support Download PDFInfo
- Publication number
- CN2811570Y CN2811570Y CN 200520031692 CN200520031692U CN2811570Y CN 2811570 Y CN2811570 Y CN 2811570Y CN 200520031692 CN200520031692 CN 200520031692 CN 200520031692 U CN200520031692 U CN 200520031692U CN 2811570 Y CN2811570 Y CN 2811570Y
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- CN
- China
- Prior art keywords
- support
- extensible canopy
- preposition
- prepositional
- rearmounted
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- 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 - Lifetime
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Abstract
The utility model relates to a rear telescopic beam for a hydraulic support, which comprises a prepositional support and a postpositional support, wherein the prepositional support is composed of a prepositional support base (9), a prepositional support top beam (2) and a hydraulic pressure pillar (1) which is arranged between the prepositional support base and the prepositional support top beam; the postpositional support is composed of a postpositional support base (8), a postpositional support top beam (5) and a hydraulic pressure pillar (7) which is arranged between the postpositional support base and the postpositional support top beam. The rear part of the prepositional support top beam (2) is provided with a hollow case cavity used for installing a telescopic beam is arranged; the rear telescopic beam is inserted into the case cavity. A jack (3) which is used for driving the rear telescopic beam to displace forward and backward is arranged below the rear telescopic beam. One end of the jack is combined with the rear end of the rear telescopic beam by an articulated element, and the other end of the jack is combined with a connecting piece arranged in the case cavity of the prepositional support top beam by an articulated element. The rear telescopic beam for the hydraulic support can effectively solve the problem in the prior art that when the prepositional support moves forward, an unsupported hollow top zone is formed between the prepositional support and the postpositional support. The rear telescopic beam for a hydraulic support can solve the problem of collapse, falling or dirt leakage of an upper top plate fundamentally.
Description
Technical field
The utility model relates to the comprehensive mechanical coal mining working surface hydraulic support, relates to extensible canopy behind a kind of hydraulic support specifically.
Background technology
Along with applying of caving coal face end support, now designed a kind of novel type---front and rear formula caving coal face end support, this support is formed before and after being arranged in respectively by preposition support and rearmounted support, when preposition support moves forward, to between preposition support and rearmounted support, form the empty top zone of a non-support, and roof caving very easily take place or leak the cash problem.
Summary of the invention
A kind of structure that the purpose of this utility model provides at existing weak point in the above-mentioned prior art just more reasonably can fundamentally be stopped extensible canopy behind the hydraulic support that above-mentioned accident takes place.
The purpose of this utility model can adopt following measure to realize:
Extensible canopy comprises by preposition base behind the hydraulic support of the present utility model, preposition set cap, be arranged on the preposition support that the hydraulic vertical prop between preposition base and the preposition set cap is formed, with by rearmounted base, rearmounted set cap, be arranged on the rearmounted support that the hydraulic vertical prop between rearmounted base and the rearmounted set cap is formed, be provided with the hollow box chamber that is used to install extensible canopy at the rear portion of preposition set cap, in this case chamber, be fitted with the back extensible canopy, the jack of displacement was installed in extensible canopy below, back before and after extensible canopy was done after being used to drive, one end of this jack combines by the rear end of articulated elements with the back extensible canopy, and the other end combines with connector in being arranged on preposition set cap case chamber by articulated elements.
Back described in the utility model extensible canopy is made up of two beam bodies about be arrangeding in parallel, be inserted into respectively in two case chambeies that preposition set cap rear portion be arranged in parallel, two groups of four jack (specifically per two jack are one group, are used to drive an extensible canopy) that are used to drive extensible canopy do front and back displacement after two are installed in two back extensible canopies belows that be arranged in parallel respectively.
The extensible canopy of back described in the utility model also can be designed to an overall structure, and the jack that is used to drive the back extensible canopy of monolithic construction can be one, also can be two.
Between described preposition base and rearmounted base by middle planker and about the jack of trying to stop people from fighting each other be connected.
More specifically say, the rectangular box structure more than two that described back extensible canopy be arranged in parallel about being, being guide rail with the similar rectangular box chamber framework that is provided with in the preposition set cap respectively, is to slide in the case chamber framework of power in preposition set cap with the extensible canopy jack, realizes stretching out and withdrawing, when preposition support moves forward, back extensible canopy stretches out, and the top board that supporting lives to expose is when the rearmounted support of reach, the rearmounted support needed mobile space that moves forward has been abdicated in the withdrawal of back extensible canopy.
Why the utility model is designed to two split-type structurals with the back extensible canopy, and each extensible canopy is driven by two extensible canopy jack, its objective is and reduce each back extensible canopy working resistance in when motion as far as possible, make it evenly stressed, the generation of the card phenomenon of can fundamentally stopping to sprain.
The purpose that described in addition back extensible canopy body is configured to many rectangular box structure is to improve its whole rigidity and torsional property, and its section is strengthened, and plays the purpose that improves anti-bending strength, weight reduction.
When extensible canopy can effectively solve in the prior art existing preposition support reach behind the hydraulic support of the present utility model, between preposition support and rearmounted support, form the empty top zone problem of non-support, can fundamentally stop upper plate and collapse to fall or leak the cash problem.
Description of drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is the structure principle chart of extensible canopy behind the utility model.
Fig. 3 is the A-A sectional view in the accompanying drawing 2.
1 is hydraulic vertical prop among the figure, the 2nd, and preposition set cap, the 3rd, back extensible canopy jack, the 4th, left back extensible canopy body, the 5th, rearmounted set cap, the 6th, right back extensible canopy body, the 7th, hydraulic vertical prop, the 8th, rearmounted base, the 9th, preposition base, the 10th, in the middle of planker, the 11st, about the jack of trying to stop people from fighting each other.
The specific embodiment
The utility model is done with detailed description below with reference to example (accompanying drawing):
As shown in Figure 1, extensible canopy comprises by preposition base 9, preposition set cap 2, is arranged on the preposition support that the hydraulic vertical prop 1 between preposition base 9 and the preposition set cap 2 is formed behind the hydraulic support of the present utility model, and by rearmounted base 8, rearmounted set cap 5, be arranged on the rearmounted support that the hydraulic vertical prop 7 between rearmounted base 8 and the rearmounted set cap 5 is formed, 8 of described preposition base 9 and rearmounted bases by middle planker 10 and about the jack 11 of trying to stop people from fighting each other be connected; Be arranged with two hollow box chambeies that are used to install the back extensible canopy in parallel at the rear portion of preposition set cap 2, a left side that be arranged in parallel, the back extensible canopy 4 and 6 of right rectangular box structure more than two is inserted into respectively in two case chambeies that preposition set cap rear portion be arranged in parallel, be used for driving a left side, two groups of four jack 3 of displacement were installed in two back extensible canopy belows that be arranged in parallel respectively before and after extensible canopy was done after right two, one end of described jack 3 combines by the rear end of articulated elements with the back extensible canopy, and the other end combines with connector in being arranged on preposition set cap case chamber by articulated elements.
Operating principle of the present utility model is as follows:
When moving forward preposition support, back extensible canopy jack piston rod stretches out, and releases the back extensible canopy backward, and this goes up support space of sealing to make back extensible canopy and the common primordial of rearmounted set cap, prevents roof caving or leakage cash; At the rearmounted support of tractive forward in the displacement, back extensible canopy jack piston rod withdrawal retracts back extensible canopy, has abdicated the rearmounted support needed mobile space that moves forward.
Claims (4)
1, extensible canopy behind a kind of hydraulic support, it comprises by preposition bracket base (9), preposition set cap (2), is arranged on the preposition support that the hydraulic vertical prop (1) between preposition bracket base and the preposition set cap is formed, and by rearmounted bracket base (8), rearmounted set cap (5), be arranged on the rearmounted support that the hydraulic vertical prop (7) between rearmounted bracket base and the rearmounted set cap is formed; It is characterized in that: be provided with the hollow box chamber that is used to install extensible canopy at the rear portion of preposition set cap (2), in this case chamber, be fitted with the back extensible canopy, the jack (3) of displacement was installed in extensible canopy below, back before and after extensible canopy was done after being used to drive, one end of this jack (3) combines by the rear end of articulated elements with the back extensible canopy, and the other end combines with connector in being arranged on preposition set cap case chamber by articulated elements.
2, extensible canopy behind the hydraulic support according to claim 1, it is characterized in that: described back extensible canopy is made up of left and right two the beam bodies (4), (6) that be arranged in parallel, be inserted into respectively in two case chambeies that preposition set cap (2) rear portion be arranged in parallel, be used to drive that two groups four jack (3) of displacement were installed in two back extensible canopies belows that be arranged in parallel respectively before and after extensible canopy was done after two.
3, extensible canopy behind the hydraulic support according to claim 1 and 2 is characterized in that: described back extensible canopy (4), (6) are many rectangular box structure.
4, extensible canopy behind the hydraulic support according to claim 1 is characterized in that: between described preposition base (9) and rearmounted base (8) by middle planker (10) and about the jack (11) of trying to stop people from fighting each other be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031692 CN2811570Y (en) | 2005-08-31 | 2005-08-31 | Rear telescopic beam for hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031692 CN2811570Y (en) | 2005-08-31 | 2005-08-31 | Rear telescopic beam for hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2811570Y true CN2811570Y (en) | 2006-08-30 |
Family
ID=36937957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520031692 Expired - Lifetime CN2811570Y (en) | 2005-08-31 | 2005-08-31 | Rear telescopic beam for hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2811570Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472102A (en) * | 2009-07-10 | 2012-05-23 | 乔伊·姆·特拉华公司 | Longwall mining roof supports |
-
2005
- 2005-08-31 CN CN 200520031692 patent/CN2811570Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472102A (en) * | 2009-07-10 | 2012-05-23 | 乔伊·姆·特拉华公司 | Longwall mining roof supports |
| CN102472102B (en) * | 2009-07-10 | 2015-03-11 | 乔伊·姆·特拉华公司 | Longwall mining roof supports |
| US9670777B2 (en) | 2009-07-10 | 2017-06-06 | Joy Mm Delaware, Inc. | Longwall mining roof supports |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CATERPILLAR (ZHENGZHOU) CO., LTD. Free format text: FORMER NAME: ZHENGZHOU SIWEI ELECTROMECHANICAL EQUIPMENT MANUFACTURING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 450001 No. 7 shuttle Road, Zhengzhou hi tech Industrial Development Zone, Henan, Zhengzhou, China Patentee after: Caterpillar (Zhengzhou) Co., Ltd. Address before: 450001 No. 7 shuttle Road, Zhengzhou hi tech Industrial Development Zone, Henan, Zhengzhou, China Patentee before: Zhengzhou Siwei Electromechanical Equipment Manufacturing Co., Ltd. |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150831 Granted publication date: 20060830 |
|
| EXPY | Termination of patent right or utility model |