CN203781674U - Retractable tail crane - Google Patents
Retractable tail crane Download PDFInfo
- Publication number
- CN203781674U CN203781674U CN201420097555.8U CN201420097555U CN203781674U CN 203781674 U CN203781674 U CN 203781674U CN 201420097555 U CN201420097555 U CN 201420097555U CN 203781674 U CN203781674 U CN 203781674U
- Authority
- CN
- China
- Prior art keywords
- chain
- drum shaft
- retractable
- brackets
- scraper conveyor
- 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
Links
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model relates to a retractable tail crane which is applied to extension and maintenance of a coalmine underground heading scraper conveyor. The retractable tail crane comprises a bottom plate and two brackets arranged on two sides of the bottom plate, and is characterized in that a drum shaft is connected between tail ends of the brackets, and is sleeved with a roller; two ends of the drum shaft are respectively connected with oil cylinders through push rods; the oil cylinders are fixed outside the brackets; a power mechanism of each oil cylinder adopts a pneumatic oil pump. The retractable tailing has the beneficial effects that a chain of a 40T scraper conveyor, which is over 100m, can be easily tightened to achieve a chain-tightening effect; the chain-tightening safety coefficient is increased, the situations that a person is hurt by collapsing of an electric tightening vehicle, a motor is suffocated, a scraper is bent or the like can be prevented; the efficiency can be greatly improved, and the scraper conveyor can be easily and conveniently extended by one operator.
Description
(1) technical field
The utility model relates to a kind of scalable slipping tail, is applied to extension and the maintenance of boring head scraping transporter under coal mine.
(2) background technology
At present, in colliery driving production process, slat conveyer is the transportation device generally using, and slat conveyer is easy to use, and carrying, installation and management are simple.But in concrete use procedure, because slat conveyer needs fitfull to extend chute, chain link of pinching after chain and extension of slat conveyer is very important operation link.Traditional pinch chain link conventionally has airborne chain tensioner sheet to pinch connection and chain block is pinched connection, but these two kinds of methods are impracticable in concrete operations, and has great potential safety hazard.
(3) summary of the invention
The utility model is in order to make up the deficiencies in the prior art, and a kind of simple in structure, safety factor is high, efficiency is high scalable slipping tail is provided.
The utility model is achieved by the following technical solution:
A kind of scalable slipping tail, comprise base plate, base plate both sides are provided with support, it is characterized in that: between described support end, be connected with drum shaft, on drum shaft, be arranged with cylinder, drum shaft two ends are connected with oil cylinder by push rod respectively, and oil cylinder is fixed on support outside, and the actuating unit of oil cylinder adopts pneumatic oil pump.
The beneficial effects of the utility model are: can easily make the chain tension of more than 100 meters 40T scraping transporter, reach tight chain effect; Tight chain safety factor improves, and there will not be the tight car of electricity to collapse the person of hurting sb.'s feelings or suppresses bad motor or the situation such as stretch bending scraper plate; Efficiency improves greatly, relaxedly and rapidly extension screed transport plane of an operating personal.
(4) brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing 1 is structural representation of the present utility model;
In figure, 1 base plate, 2 supports, 3 drum shafts, 4 cylinders, 5 push rods, 6 oil cylinders.
(5) detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment comprises base plate 1, and base plate 1 both sides are provided with support 2, between support 2 ends, is connected with drum shaft 3, on drum shaft 3, be arranged with cylinder 4, drum shaft 3 two ends are connected with oil cylinder 6 by push rod 5 respectively, and oil cylinder 6 is fixed on support 2 outsides, and the actuating unit of oil cylinder 6 adopts pneumatic oil pump.
Adopt the scalable slipping tail of one of the present utility model, when use, utilize down-hole high pressure wind, can make pneumatic oil pump drive oil cylinder 6 effectively outwards to promote fast push rod 5, push rod 5 outwards promotes drum shaft 3, and drum shaft 3 drives cylinder 4 outwards to move, just can be by the chain tension being sheathed on cylinder 4.Can easily make the chain tension of more than 100 meters 40T scraping transporter, there will not be the tight car of electricity to collapse the person of hurting sb.'s feelings or suppress bad motor or the situation such as stretch bending scraper plate, greatly improve work efficiency.
Claims (1)
1. a scalable slipping tail, comprise base plate (1), base plate (1) both sides are provided with support (2), it is characterized in that: between described support (2) end, be connected with drum shaft (3), on drum shaft (3), be arranged with cylinder (4), drum shaft (3) two ends are connected with oil cylinder (6) by push rod (5) respectively, and oil cylinder (6) is fixed on support (2) outside, and the actuating unit of oil cylinder (6) adopts pneumatic oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097555.8U CN203781674U (en) | 2014-03-05 | 2014-03-05 | Retractable tail crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097555.8U CN203781674U (en) | 2014-03-05 | 2014-03-05 | Retractable tail crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203781674U true CN203781674U (en) | 2014-08-20 |
Family
ID=51317883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420097555.8U Expired - Fee Related CN203781674U (en) | 2014-03-05 | 2014-03-05 | Retractable tail crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203781674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10358294B2 (en) * | 2016-10-27 | 2019-07-23 | Keyarrow (Taiwan) Co., Ltd. | Collapsible conveyor rack |
-
2014
- 2014-03-05 CN CN201420097555.8U patent/CN203781674U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10358294B2 (en) * | 2016-10-27 | 2019-07-23 | Keyarrow (Taiwan) Co., Ltd. | Collapsible conveyor rack |
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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: 20140820 Termination date: 20150305 |
|
| EXPY | Termination of patent right or utility model |