CN201273361Y - Chain tension device - Google Patents
Chain tension device Download PDFInfo
- Publication number
- CN201273361Y CN201273361Y CNU2008200387989U CN200820038798U CN201273361Y CN 201273361 Y CN201273361 Y CN 201273361Y CN U2008200387989 U CNU2008200387989 U CN U2008200387989U CN 200820038798 U CN200820038798 U CN 200820038798U CN 201273361 Y CN201273361 Y CN 201273361Y
- Authority
- CN
- China
- Prior art keywords
- piston
- ratchet
- tensioning
- tensioning piston
- loosing
- 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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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 230000002265 prevention Effects 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Abstract
A chain tensioning means comprises a casing, a tensioning piston, a piston oil spout hole, a plug post and a piston spring, and is characterized in that an anti-loosing ratchet bar which is parallel to the tensioning piston is arranged in the casing, one end of the anti-loosing ratchet bar is connected with the tensioning piston through a block, ratchets of the anti-loosing ratchet bar are meshed with ratchets of a pawl block, which prevents the anti-loosing ratchet bar from moving to the protrusion direction of the tensioning piston, the ratchet block is a component which is perpendicular to the anti-loosing ratchet bar, and one end of the ratchet block towards to the anti-loosing ratchet bar is provided with the ratchets. As adopting the structure, the chain tensioning means has the advantages of preventing the tensioning piston from retaining, saving oil, and lubricating the tensioning means, which reduces the friction between the tensioning means and a guide rail.
Description
Technical field
The utility model relates to motor, particularly a kind of chain stretching device.
Background technique
The timing mechanism that the present chain stretching device modern times start is that the moment of torsion that bent axle produces is delivered on the camshaft, and the camshaft actuated valve mechanism reaches the purpose of engine timing.Moment of torsion transfer mode from the bent axle to the camshaft mainly contains by belt transmission and chain and transmits two kinds.Current modal be the belt transmission, it is used early, technology is comparative maturity, the chain transmission is another mode of current rise.Than the belt transmission, the chain transmission has the plurality of advantages of himself, and such as the chain maintenance-free, the chain elongation percentage is little, can be at environment than working under the condition of severe etc.No matter be to adopt belt transmission or chain transmission, all need a tension device, guarantee belt or chain tightening in running, could guarantee that like this timing is accurate, ensure the normal operation of motor.The Idle wheel of Timing Belt generally is to adopt eccentric wheel, and than chain tensioning device, its stroke that can regulate is short, the tension force deficiency.
The model utility content
The utility model provides a kind of chain stretching device, regulates tension effects automatically to reach tension device, prevents the piston reversion, lubricated track, the purpose of minimizing guide rail and piston friction.
The technological scheme that the utility model technical solution problem adopts is: a kind of chain stretching device comprises housing, tensioning piston, piston nozzle opening, stick harness, piston spring; It is characterized in that: be provided with the locking ratchet lever parallel in the described housing with the tensioning piston, one end of locking ratchet lever is connected with the tensioning piston by catch, the ratchet engagement of the ratchet of locking ratchet lever and ratchet piece, the locking ratchet lever of the two engagement back prevention is stretched out direction to the tensioning piston and is moved, the ratchet piece is the member vertical with locking ratchet lever, and its end towards locking ratchet lever is provided with ratchet.
A kind of chain stretching device; It is characterized in that: described housing is provided with the tensioning piston cavity and is connected oil inlet passage, and the fuel-displaced oral-lateral of oil inlet passage is provided with spring pedestal and spring pedestal is freely contacted the check ball that leaves and close oil inlet passage at contact condition.
A kind of chain stretching device; Owing to adopt said structure to have the following advantages: 1, can prevent the reversion of tensioning piston; 2, save with oil, lubricated tension device reduces the friction of tension device and guide rail.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further details
Fig. 1 is the utility model structural representation
Fig. 2 is the utility model assembling schematic representation
In Fig. 1-2,1, housing, 2, bolt, 3, the ratchet piece, 4, catch, 5, locking ratchet lever, 6, the tensioning piston, 7, the piston nozzle opening, 8, stick harness, 9, oil inlet passage, 10, spring pedestal, 11, piston spring, 12, spring, 13, check ball, 14, guide rail.
Embodiment
Shown in Fig. 1-2, a kind of chain stretching device comprises housing 1, tensioning piston 6, piston nozzle opening 7, stick harness 5, piston spring 11; It is characterized in that: be provided with the locking ratchet lever 5 parallel in the described housing 1 with tensioning piston 6, one end of locking ratchet lever 5 is connected with tensioning piston 6 by catch 4, the ratchet engagement of the ratchet of locking ratchet lever 5 and ratchet piece 3, the locking ratchet lever 5 of the two engagement back prevention is stretched out direction to tensioning piston 6 and is moved, ratchet piece 3 is the member vertical with locking ratchet lever 5, and its end towards locking ratchet lever 5 is provided with ratchet.
When stretcher by being bolted on the cylinder body, during installation, take out pin, make tensioning piston 6 under the effect of piston spring 11, hold out against guide rail 14, guide rail 14 contacts with chain, transmits the tension force of piston spring 11.When the rail-sides chain tension, guide rail 14 will change to the stretcher lateral deviation around following bolt axis.Also be provided with housing oil inlet passage 9 on the housing 1, the fuel-displaced oral-lateral of oil inlet passage 9 is provided with spring pedestal 10 and spring pedestal 10 is freely contacted the check ball 13 that leaves and close oil inlet passage at contact condition, be provided with tensioning piston 6 in 1 the cavity in the housing, piston spring 11, stick harness 8, piston spring 11 is extrapolated with stick harness 8 and tensioning piston 6, locking ratchet lever 5 and ratchet piece 3 prevent tensioning piston 6 to housing 1 inner reversion, oil enters spring pedestal 10 from oil inlet passage 9, when oil pressure reaches a kind of degree, check ball 13 leaves spring pedestal 10, oil after the stick harness 8 front end throttlings from piston nozzle opening 7 with very high pressure injection to guide rail 14, play the effect of lubricated and damping.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present utility model and technological scheme to carry out; or directly apply to other occasion without improvement, all within protection domain of the present utility model.
Claims (2)
1, a kind of chain stretching device comprises housing (1), tensioning piston (6), piston nozzle opening (7), stick harness (8), piston spring (11); It is characterized in that: be provided with the locking ratchet lever (5) parallel in the described housing (1) with tensioning piston (6), one end of locking ratchet lever (5) is connected with tensioning piston (6) by catch (4), the ratchet engagement of the ratchet of locking ratchet lever (5) and ratchet piece (3), the two engagement back locking ratchet lever of prevention (5) is stretched out direction to tensioning piston (6) and is moved, ratchet piece (3) is and the vertical member of locking ratchet lever (5) that its end towards locking ratchet lever (5) is provided with ratchet.
2, a kind of chain stretching device according to claim 1; It is characterized in that: also be provided with the oil inlet passage (9) that is connected with the tensioning piston cavity on the described housing (1), the fuel-displaced oral-lateral of oil inlet passage (9) is provided with spring pedestal (10) and spring pedestal (10) is freely contacted the check ball (13) that leaves and close oil inlet passage (9) at contact condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200387989U CN201273361Y (en) | 2008-08-08 | 2008-08-08 | Chain tension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200387989U CN201273361Y (en) | 2008-08-08 | 2008-08-08 | Chain tension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201273361Y true CN201273361Y (en) | 2009-07-15 |
Family
ID=40883708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200387989U Expired - Fee Related CN201273361Y (en) | 2008-08-08 | 2008-08-08 | Chain tension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201273361Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811250A (en) * | 2010-04-09 | 2010-08-25 | 山东交通学院 | Assembling and disassembling machine for twin-chained scraper chain |
| CN102654180A (en) * | 2011-03-01 | 2012-09-05 | 株式会社椿本链条 | Rachet-type tensioner |
| CN101598043B (en) * | 2009-07-23 | 2012-09-26 | 浙江吉利汽车研究院有限公司 | Lubricating type tensioner |
| CN102943853A (en) * | 2012-11-29 | 2013-02-27 | 南车戚墅堰机车有限公司 | Tension wheel for de-icing locomotive |
| CN104358847A (en) * | 2014-10-28 | 2015-02-18 | 绵阳富临精工机械股份有限公司 | Engine rack non-return type tensioner |
| CN104989479A (en) * | 2015-06-23 | 2015-10-21 | 华晨汽车集团控股有限公司 | Engine chain timing system |
| CN105003572A (en) * | 2015-07-16 | 2015-10-28 | 芜湖稳乐制动系统有限公司 | Self-adjusting type hydraulic brake caliper assembly |
| CN110356779A (en) * | 2018-04-11 | 2019-10-22 | 南京恒昌包装机械有限公司 | A kind of defeated tank chain tensioning mechanism and adjusting method |
-
2008
- 2008-08-08 CN CNU2008200387989U patent/CN201273361Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598043B (en) * | 2009-07-23 | 2012-09-26 | 浙江吉利汽车研究院有限公司 | Lubricating type tensioner |
| CN101811250A (en) * | 2010-04-09 | 2010-08-25 | 山东交通学院 | Assembling and disassembling machine for twin-chained scraper chain |
| CN101811250B (en) * | 2010-04-09 | 2012-07-04 | 山东交通学院 | Assembling and disassembling machine for twin-chained scraper chain |
| CN102654180A (en) * | 2011-03-01 | 2012-09-05 | 株式会社椿本链条 | Rachet-type tensioner |
| CN102654180B (en) * | 2011-03-01 | 2015-06-03 | 株式会社椿本链条 | Rachet-type tensioner |
| CN102943853A (en) * | 2012-11-29 | 2013-02-27 | 南车戚墅堰机车有限公司 | Tension wheel for de-icing locomotive |
| CN104358847A (en) * | 2014-10-28 | 2015-02-18 | 绵阳富临精工机械股份有限公司 | Engine rack non-return type tensioner |
| CN104989479A (en) * | 2015-06-23 | 2015-10-21 | 华晨汽车集团控股有限公司 | Engine chain timing system |
| CN104989479B (en) * | 2015-06-23 | 2017-07-21 | 华晨汽车集团控股有限公司 | A kind of engine chain timing system |
| CN105003572A (en) * | 2015-07-16 | 2015-10-28 | 芜湖稳乐制动系统有限公司 | Self-adjusting type hydraulic brake caliper assembly |
| CN110356779A (en) * | 2018-04-11 | 2019-10-22 | 南京恒昌包装机械有限公司 | A kind of defeated tank chain tensioning mechanism and adjusting method |
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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: 20090715 Termination date: 20130808 |