CN203670646U - Chain tensioner - Google Patents
Chain tensioner Download PDFInfo
- Publication number
- CN203670646U CN203670646U CN201320760763.7U CN201320760763U CN203670646U CN 203670646 U CN203670646 U CN 203670646U CN 201320760763 U CN201320760763 U CN 201320760763U CN 203670646 U CN203670646 U CN 203670646U
- Authority
- CN
- China
- Prior art keywords
- chain
- wheel
- frame
- tension
- tensioning wheel
- 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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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model relates to a chain tensioner which comprises a chain wheel adjusting screw rod, a tensioning wheel adjusting frame, tensioning chain wheels, a limiting block, a fixing frame, a tensioning wheel shaft, separation sleeves, limiting sleeves, antifriction bearings and a tensioning wheel protection hood. The antifriction bearings are ranged in two groups to be fixed on the tensioning wheel shaft, the antifriction bearings are sleeved with the tensioning chain wheels and are located through the separation sleeves and the limiting sleeves, the tensioning wheel shaft is fixed on the tensioning wheel adjusting frame through a hexagon thin nut and a spring washer, the fixing frame is welded on a chain box, the two ends of the chain wheel adjusting screw rod are connected between the tensioning wheel adjusting frame and the fixing frame through the mode that a first adjusting pin shaft and a second adjusting pin shaft penetrate through the two ends of the chain wheel adjusting screw rod, and the other end of the tensioning wheel adjusting frame is fixed on the chain box through a pin shaft. Compared with the prior art, the chain tensioner has the advantages that the appearance is attractive, the structure is simple, adjustment is convenient and quick, labor is saved, and the chain tensioner is safe and reliable, high in universality and capable of being repeatedly used, effectively lowers operation difficulty and improves work efficiency.
Description
Technical field
The utility model relates to the tension device that makes oil-field workover rig chain keep stable drive, particularly a kind of chain tensioning device.
Background technique
Chain tensioning device is the important corollary equipment of oil-field workover rig chain stable drive indispensability, in well repairing machine working procedure, conventionally need chain to transmit the motion between rotatable parts, chain tensioning device is very important device in chain transmission system, no matter rely on Idle wheel to give chain constant tension force ability stable operation, be new chain or old chain, if there is no stretcher, lax chain there will be the de-chain of vacillating now to the left, now to the right, a whole set of chain drive system of serious meeting Rapid Damage.
Summary of the invention
The utility model provides a kind of tightness rapid adjustment tension force that can be different according to chain, makes the chain tensioning device of transmission system stable operation, has reduced adjustment link compared with same device, has reduced operation easier, has improved working efficiency.
In order to address the above problem, the utility model by the following technical solutions:
A kind of chain tensioning device, comprise sprocket wheel adjusting screw, Idle wheel regualting frame, tension sprocket, limiting stopper, fixing frame, tension wheel shaft, spacer, stop collar, rolling bearing, Idle wheel guard shield, described rolling bearing is divided into 2 groups and is arranged on tension wheel shaft, tension sprocket is enclosed within on rolling bearing, and with spacer, stop collar location, tension wheel shaft hexagon thin nut, spring washer is fixed on Idle wheel regualting frame, fixing frame is welded on chain box, sprocket wheel adjusting screw two ends are connected to Idle wheel regualting frame and fixing frame through adjusting bearing pin one and adjusting bearing pin two respectively, the Idle wheel regualting frame the other end is fixed on chain box by bearing pin.
Described Idle wheel regualting frame is symplex structure, and intermediate hole is fixed on Idle wheel regualting frame by tension wheel shaft, and pin shaft hole is all established in both sides, and a side pin shaft hole is fixed on chain box with bearing pin, and the bearing pin in the pin shaft hole of both sides is all radially being offered tapped hole and is being left-hand thread.
Described sprocket wheel adjusting screw two ends thread rotary orientation is contrary, and respectively through the bearing pin tapped hole on fixing frame and Idle wheel regualting frame.
Compared with prior art, the beneficial effects of the utility model are:
A kind of chain tensioning device beautiful shape of the utility model, simple in structure, adjust and conveniently save labor rapidly, safe and reliable, highly versatile, can Reusability, effectively reduces operation easier, has improved working efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of chain tensioning device of the utility model.
1. sprocket wheel adjusting screw 2. Idle wheel regualting frames 3. are adjusted bearing pin one 4. tension sprocket 5. limiting stoppers 6. and are adjusted bearing pin 2 7. hexagon thin nut 8. fixing frame 9. spring washer 10. tension wheel shaft 11. spacer 12. stop collar 13. rolling bearing 14. bearing pin 15. Idle wheel guard shields
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
See Fig. 1, be the structural representation of a kind of chain tensioning device of the utility model, comprise sprocket wheel adjusting screw 1, Idle wheel regualting frame 2, adjustment bearing pin 1, tension sprocket 4, limiting stopper 5, adjust bearing pin 26, hexagon thin nut 7, fixing frame 8, spring washer 9, tension wheel shaft 10, spacer 11, stop collar 12, rolling bearing 13, bearing pin 14, Idle wheel guard shield 15.Described rolling bearing 13 is divided into 2 groups and is arranged on tension wheel shaft 10, tension sprocket 4 is enclosed within on rolling bearing 13, and locate with spacer 11, stop collar 12, tension wheel shaft 10 use hexagon thin nuts 7, spring washer 9 are fixed on Idle wheel regualting frame 2, fixing frame 8 is welded on chain box, sprocket wheel adjusting screw 1 two ends, two ends thread rotary orientation is contrary, respectively through the tapped hole of adjusting bearing pin 1 and adjustment bearing pin 26, be connected between Idle wheel regualting frame 2 and fixing frame 8, Idle wheel regualting frame 2 the other ends are fixed on chain box by bearing pin 14.
When work, due to the sprocket wheel adjusting screw 1 two ends forward-reverse spiral button of having got on the bus, rotating sprocket adjusting screw 1, Idle wheel regualting frame 2 swings around bearing pin 14 centers that are fixed on sprocket cassette, the position of tension sprocket 4 relative drive chains moves left and right, the tension force that capable of regulating applies chain.
Claims (3)
1. a chain tensioning device, it is characterized in that, comprise sprocket wheel adjusting screw, Idle wheel regualting frame, tension sprocket, limiting stopper, fixing frame, tension wheel shaft, spacer, stop collar, rolling bearing, Idle wheel guard shield, described rolling bearing is divided into 2 groups and is arranged on tension wheel shaft, tension sprocket is enclosed within on rolling bearing, and with spacer, stop collar location, tension wheel shaft hexagon thin nut, spring washer is fixed on Idle wheel regualting frame, fixing frame is welded on chain box, sprocket wheel adjusting screw two ends are connected to Idle wheel regualting frame and fixing frame through adjusting bearing pin one and adjusting bearing pin two respectively, the Idle wheel regualting frame the other end is fixed on chain box by bearing pin.
2. a kind of chain tensioning device according to claim 1, it is characterized in that, described Idle wheel regualting frame is symplex structure, intermediate hole is fixed on Idle wheel regualting frame by tension wheel shaft, pin shaft hole is all established in both sides, one side pin shaft hole is fixed on chain box with bearing pin, and the bearing pin in the pin shaft hole of both sides is all radially being offered tapped hole and is being left-hand thread.
3. a kind of chain tensioning device according to claim 1, is characterized in that, described sprocket wheel adjusting screw two ends thread rotary orientation is contrary, and respectively through the bearing pin tapped hole on fixing frame and Idle wheel regualting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320760763.7U CN203670646U (en) | 2013-11-25 | 2013-11-25 | Chain tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320760763.7U CN203670646U (en) | 2013-11-25 | 2013-11-25 | Chain tensioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670646U true CN203670646U (en) | 2014-06-25 |
Family
ID=50966947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320760763.7U Expired - Fee Related CN203670646U (en) | 2013-11-25 | 2013-11-25 | Chain tensioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670646U (en) |
-
2013
- 2013-11-25 CN CN201320760763.7U patent/CN203670646U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20211125 |