CN202181079U - Automatic tensioning mechanism for use by shuttle type mine car - Google Patents
Automatic tensioning mechanism for use by shuttle type mine car Download PDFInfo
- Publication number
- CN202181079U CN202181079U CN201120289466XU CN201120289466U CN202181079U CN 202181079 U CN202181079 U CN 202181079U CN 201120289466X U CN201120289466X U CN 201120289466XU CN 201120289466 U CN201120289466 U CN 201120289466U CN 202181079 U CN202181079 U CN 202181079U
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- Prior art keywords
- tensioning mechanism
- mine car
- automatic tensioning
- shuttle type
- cylinder body
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Abstract
The utility model discloses an automatic tensioning mechanism for use by a shuttle type mine car, which is equipped at two ends of a tail shaft (12) of a plate scraping chain. The automatic tensioning mechanism comprises the following components: a piston rod (2) which are respectively connected two ends of a tail shaft fixedly, a cylinder body (1) which is hermetically matched movably with the piston rod, and an oil pipe (6) which is in communication connection with the cylinder body and can introduce power medium into the cylinder body. According to the automatic tensioning mechanism, through improvement to the structure, the automatic tensioning mechanism has the following advantages: effectively ensuring always non-loosening of the plate scrapping chain of the shuttle type mine car; stabilizing operation performance of the shuttle type mine car; preventing over-quick abrasion of the plate scrapping chain; prolonging service life of the shuttle type mine car; and saving a large amount of production cost for the digging enterprises. Secondly, optimization and upgrading of digging equipment of the mining enterprise can be promoted powerfully. An important promotion function can be performed for industrialization and nationalization of the large-size shuttle type mine car.
Description
Technical field
The utility model relates to shuttle car, especially relates to the automatic tensioning mechanism that shuttle car uses.
Background technology
Shuttle car mainly is applicable to the mechanized construction than the large-engineering section such as colliery and non-coal mine, railway tunnel, water conservancy project culvert, military cavern, is a kind of transportation device of muck removal efficiently.Along with the adjustment of national industry policy, the wideling popularize of mechanized construction, shuttle car more and more receives user's favor.At present, shuttle car is as the crux equipment that loads in the mechanized construction process, reprints, and properties of product enjoy the user to pay close attention to.The fixedly employing of traditional shuttle car tailing axle be two adjusting screw(rod)s, when flight chain is loosening, rely on manpower respectively the stretching screw of shuttle car both sides to be regulated, to reach the purpose of tension chain.Obviously, this structure needs operating personal often to check, and the shuttle car behaviour in service is understood very much, could guarantee that shuttle car does not go wrong at work, taxes one's mind and strength.In case it is inconsistent two scraper plate conveyer chain tensioning degrees to occur, operating personal is not in time found again, causes the shuttle car operation not steady easily, even gets stuck, and accelerates chain wear speed, shortens the service life of chain, influences the complete machine performance.
The utility model content
To the deficiency that shuttle car in the above-mentioned prior art exists, the utility model provides a kind of shuttle car scraper chain that can make automatically to remain tensioning, guarantees the automatic tensioning mechanism of the steady reliability service of shuttle car.
The technical scheme that the technical matters that the utility model will solve is taked is: the automatic tensioning mechanism that said shuttle car uses is fitted in the tailing axle two ends of scraper chain; It comprises the piston rod that is fixedly linked respectively with the tailing axle two ends, cylinder body that matches with the piston rod packing activity and the oil pipe that is connected and can in cylinder body, feeds dynamic medium with cylinder body.
In order to prevent that piston rod from rotating, piston rod is provided with flats portion, and flats portion is provided with spacing screw rod, piston rod is only moved axially and does not rotate.
The principle of work of the utility model is to be that working medium is a power with the 2# lithium grease; Rely on fuel feeding valve to be transmitted to dynamic medium in the fluid power cylinder body, after it acquires a certain degree, when cylinder interior pressure rising and maintenance 8MPa through the red copper oil pipe; When becoming flexible appears in scraper chain; Utilize cylinder body internally-powered pressure medium to promote piston rod and move, thereby the position of tailing axle on the syn adjustment shuttle car keeps chain synchronous tension operation on the shuttle car.
The technique effect of the utility model is:
The utility model is through the improvement to this structure; Guaranteed that effectively the shuttle car scraper chain cannot not remain looseningly, made the shuttle car behaviour in service steady, prevented the quick-wearing of crossing of flight chain; Prolong the service life of shuttle car, for digging enterprise practices thrift the stock production cost.Once more, the optimization and upgrading of force urges mining firm heading equipment will be arranged, industrialization, the production domesticization of accelerating large-scale shuttle car had important facilitation.
Description of drawings
Fig. 1 is the plan structure scheme drawing of the utility model,
Fig. 2 is the A-A sectional structure scheme drawing of Fig. 1,
Fig. 3 is the B-B cross-sectional view of Fig. 2.
In the drawings; 1, cylinder body 2, piston rod 3, dust ring 4, adjustment sheet 5, connect support 6, oil pipe 7, joint 8, fuel feeding valve 9, oil hole 10, fastening screw 11, connecting bore 12, tailing axle 13, chain 14, oil input channel 15, spacing screw rod, 16, flats portion.
The specific embodiment
In Fig. 1, Fig. 2 and Fig. 3, the automatic tensioning mechanism that said shuttle car uses is fitted in tailing axle 12 two ends of scraper chain respectively, and tailing axle is provided with chain 13; Said automatic tensioning mechanism is made up of cylinder body 1, piston rod 2, oil pipe 6, connection support 5, joint 7, dust ring 3, and piston rod 2 external parts and tailing axle 12 two ends directly are fixedly linked respectively, and the other end and cylinder body activity match; The piston rod external part also can be earlier be fixedly linked, connects support and be fixedly linked respectively with tailing axle 12 two ends (promptly be respectively arranged with between piston rod and the tailing axle two ends be connected support) through the connecting bore on it 11 again with being connected support 5, is provided with flats portion 16 at piston rod one end, and flats portion is provided with spacing screw rod 15; To prevent that piston rod from rotating, be provided with dust ring 3 and adjustment sheet 4 between piston rod and the cylinder body, on cylinder body one end, be connected with oil pipe 6; Oil pipe links to each other with oil input channel 14 1 ends in being located at the cylinder body end wall; The oil input channel other end communicates with inner chamber of cylinder block, the oil pipe other end links to each other with fuel feeding valve 8 through joint 7, has oil hole 9 on the fuel feeding valve, and fuel feeding valve links to each other with oil pipe with fastening screw 10; Through oil hole lithium grease is injected in the cylinder body; Make to keep certain pressure in the cylinder body, when the chain wear generation was loosening, tailing axle and scraper chain produced the gap; Move backward behind the piston rod pressurized this moment; Drive connection support and tailing axle and move backward, thereby, keep the synchronous smooth running of scraper chain chain tensioning all the time.
Claims (2)
1. the automatic tensioning mechanism that uses of a shuttle car; It is fitted in tailing axle (12) two ends of scraper chain respectively; It is characterized in that: said automatic tensioning mechanism comprises the piston rod (2) that is fixedly linked respectively with the tailing axle two ends, cylinder body (1) that matches with the piston rod packing activity and the oil pipe (6) that is connected and can in cylinder body, feeds dynamic medium with cylinder body.
2. the automatic tensioning mechanism that a kind of shuttle car according to claim 1 uses is characterized in that: between piston rod and tailing axle two ends, be respectively arranged with and be connected support (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120289466XU CN202181079U (en) | 2011-08-11 | 2011-08-11 | Automatic tensioning mechanism for use by shuttle type mine car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120289466XU CN202181079U (en) | 2011-08-11 | 2011-08-11 | Automatic tensioning mechanism for use by shuttle type mine car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202181079U true CN202181079U (en) | 2012-04-04 |
Family
ID=46174125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120289466XU Expired - Fee Related CN202181079U (en) | 2011-08-11 | 2011-08-11 | Automatic tensioning mechanism for use by shuttle type mine car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202181079U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806717A (en) * | 2015-03-16 | 2015-07-29 | 江西蓝翔重工有限公司 | Tensioning device for shuttle type mine car driving chain |
| CN107449887A (en) * | 2017-07-13 | 2017-12-08 | 中煤科工集团重庆研究院有限公司 | Propelling system of simulation box body for coal and gas outburst |
-
2011
- 2011-08-11 CN CN201120289466XU patent/CN202181079U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806717A (en) * | 2015-03-16 | 2015-07-29 | 江西蓝翔重工有限公司 | Tensioning device for shuttle type mine car driving chain |
| CN107449887A (en) * | 2017-07-13 | 2017-12-08 | 中煤科工集团重庆研究院有限公司 | Propelling system of simulation box body for coal and gas outburst |
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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: 20120404 Termination date: 20120811 |