CN103195891B - A kind of hydraulic tappet type stretcher of engine - Google Patents
A kind of hydraulic tappet type stretcher of engine Download PDFInfo
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- CN103195891B CN103195891B CN201310004086.0A CN201310004086A CN103195891B CN 103195891 B CN103195891 B CN 103195891B CN 201310004086 A CN201310004086 A CN 201310004086A CN 103195891 B CN103195891 B CN 103195891B
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- stretcher
- tappet
- housing
- engine
- stretcher housing
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Abstract
The invention discloses a kind of hydraulic tappet type stretcher of engine, comprise stretcher housing, the tappet be set in stretcher housing, to be arranged in stretcher housing and spring between stretcher housing and tappet and for the one-way valve to fuel feeding in stretcher housing; Also comprise pivot joint Oscillating arm on the engine; One end of Suo Shu Oscillating arm be rounded end for being hinged on the housing outer end of stretcher, the other end is tension side; Described tappet by the tappet outer end pivot joint outside stretcher housing on the engine.The restriction of You Yu Oscillating arm, tappet and stretcher housing not easily fly out, and reduce the splashing of unloading time oil.Meanwhile, the leverage of Gai Oscillating arm of You Yu, makes to be easier to tappet and stretcher housing to compress when mounted, can the installation and removal of very convenient operator, alleviates the labor intensity of operator.Further, effectively solve in prior art and adjust the short problem of stroke, make Traffic control system more flexible.
Description
Technical field
The present invention relates to a kind of automotive engine component, particularly relate to a kind of hydraulic tensioner of Automotive Engine Chain, it comprises stretcher housing, the tappet be set in stretcher housing, to be arranged in stretcher housing and spring between stretcher housing and tappet and for the one-way valve to fuel feeding in stretcher housing.
Background technique
Stretcher be in order to avoid engine timing system chain or receding side of belt tension force not enough and cause on sprocket wheel, to jump tooth, fall chain, skidding and the tension equipment that arranges.The stretcher of prior art has two-part to form usually, i.e. back-up ring and tensioner body.Stretcher is not when using, and the core body of this stretcher is in confined state; And needing to pull out back-up ring in use, core body just can play the effect of adjusting chain tightness under the effect of contained spring and engine oil pressure.But because spring force is comparatively large, core body is made to return to confined state, then must firmly compress core body cap to a certain extent, then insert back-up ring, core body can be made to be in compressive state, use in order to next time.The Chinese utility model patent being CN202073992U as notification number discloses a kind of hydraulic tensioner of engine timing chain, comprise stretcher housing, spring, one-way valve, plunger and damper, described stretcher is mounted by means of bolts on engine cylinder-body, described stretcher housing is provided with oil storage tank, lubrication nozzle opening and anti-jump tooth block, and described oil storage tank is communicated with lubrication nozzle opening.Stretcher housing is provided with plunger restraining groove, after guide rail and sprocket wheel and chain load, pulls out stretcher housing plunger restraining groove place pin, pre-tensioner chain system under spring force.
The Chinese invention patent application being also CN102252070A just like publication number discloses a kind of chain tensioning device, be held in the ratch mechanism that the elastic ring in the annular circumference groove of plunger receiving bore forms by the multiple concavo-convex rack tooth enclosed along projected direction on the outer circumferential face of plunger and form with holding, the gently sloping surface, retrogressing side of rack tooth is formed convex curved surface expanding gradually in the direction of retreat of plunger, thus the expanding outstanding speed of carrying out the plunger given prominence to along with elastic ring is limited in setting range.Tensioner body being provided with the patchhole for inserting fixing pin, preventing plunger from accidentally flying out.
Because the structure of above-mentioned stretcher causes difficulty to the dismounting of the installation of stretcher, particularly on a production line, add the operation easier of operator, reduce manufacturing efficiency.In addition, the stretcher due to said structure has the short problem of adjustment stroke, and owing to directly contacting with chain or cingulum, friction factor is large, have impact on the functional reliability of engine timing system.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of hydraulic tappet type stretcher of engine, it directly holds out against mode by changing in prior art to adopt, and adopt the linkage structure comprising a rocking arm, add the flexibility of Traffic control system, facilitate the installation and removal of stretcher widely, alleviate the labor intensity of operator.Meanwhile, by increasing by a selflubricating tension wheel structure, decreasing the friction system directly contacted with chain or cingulum, improve the functional reliability of engine timing system.
Technological scheme of the present invention is: a kind of hydraulic tappet type stretcher of engine, comprises stretcher housing, the tappet be set in stretcher housing, to be arranged in stretcher housing and spring between stretcher housing and tappet and for the one-way valve to fuel feeding in stretcher housing; Also comprise pivot joint Oscillating arm on the engine; One end of Suo Shu Oscillating arm be rounded end for being hinged on the housing outer end of stretcher, the other end is tension side; Described tappet by the tappet outer end pivot joint outside stretcher housing on the engine.The restriction of You Yu Oscillating arm, tappet and stretcher housing not easily fly out, and reduce the splashing of unloading time oil.Meanwhile, the leverage of Gai Oscillating arm of You Yu, makes to be easier to tappet and stretcher housing to compress when mounted, can the installation and removal of very convenient operator, alleviates the labor intensity of operator.Further, effectively solve in prior art and adjust the short problem of stroke, make Traffic control system more flexible.
As a kind of optimal technical scheme, also comprise a hollow bolt; Described tappet outer end by this hollow bolt pivot joint on the engine; Described one-way valve is arranged on this hollow bolt.By passing into pressure oil by hollow bolt in this tappet pivot-connecting position in stretcher housing, oil circuit is arranged more reliably compact.
In order to tappet effectively and reliably moving in stretcher housing, in described stretcher housing, extend to form a guide pipe near Yu Suo Shu Oscillating arm joint, described tappet divides in described stretcher enclosure interior and is slidably connected in this guide pipe.
In order to reduce the frictional force of tension side and chain or cingulum, the tension side of Suo Shu Oscillating arm is also articulated with an Idle wheel.
In order to reduce the frictional force of Idle wheel and chain or cingulum further, described Idle wheel adopts the polytetrafluoroethylmaterial material with self-lubricating function.
A kind of hydraulic tappet type stretcher of engine, comprises stretcher housing, the tappet be set in stretcher housing, to be arranged in stretcher housing and spring between stretcher housing and tappet and for the one-way valve to fuel feeding in stretcher housing; Also comprise pivot joint Oscillating arm on the engine and pivot connects the Idle wheel on Oscillating arm; One end of Suo Shu Oscillating arm be rounded end for being hinged on the housing outer end of stretcher, the other end is for tension side is for Idle wheel described in pivot joint; Described tappet by a hollow bolt pivot joint on the engine, is provided with one-way valve in hollow bolt.The restriction of You Yu Oscillating arm, tappet and stretcher housing not easily fly out, and reduce the splashing of unloading time oil.Meanwhile, the leverage of Gai Oscillating arm of You Yu, makes to be easier to tappet and stretcher housing to compress when mounted, can the installation and removal of very convenient operator, alleviates the labor intensity of operator.Further, effectively solve in prior art and adjust the short problem of stroke, make Traffic control system more flexible.
Adopt technological scheme of the present invention, solve the defect that stretcher friction factor in prior art is large, inconvenient operation, using scope are limited to.Make the installation and removal of stretcher convenient, alleviate labor intensity, meanwhile, Traffic control system is more flexible, and improve tension effects, friction factor is little, using scope is wide.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention.
Fig. 2 is structural representation of the present invention, Yi Chu Oscillating arm and Idle wheel in figure.
Fig. 3 is the A-A sectional drawing of Fig. 2.
Wherein, stretcher housing 1, housing outer end 101, guide pipe 102, tappet 2, spring shoulder block 201, tappet outer end 202, oil inlet passage 203, pivot hole 204, spring 3, Oscillating arm 4, pivot hole 401, rounded end 402, tension side 403, Idle wheel 5, hollow bolt 6, filler opening 601.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
See Fig. 1, a kind of hydraulic tappet type stretcher of engine, comprise stretcher housing 1, the hollow tappet 2 be set in stretcher housing 1, be arranged in stretcher housing 1 and spring 3 between stretcher housing 1 and tappet 2, pivot joint on the engine and connect the Oscillating arm 4 of stretcher housing 1 and an Idle wheel 5 and the one-way valve (figure does not show) to fuel feeding in stretcher housing 1 respectively at two ends.
One end of stretcher housing 1 is provided with an opening, and tappet 2 is slided by this opening and stuffing box gland is located in this stretcher housing 1.Oscillating arm 4 by middle pivot hole 401 pivot joint on the engine.One end of Oscillating arm 4 is rounded end 402, its be hinged on be positioned stretcher housing 1 closed end housing outer end 101 on.The other end of Oscillating arm 4 is the tension side 403 of chain or cingulum being carried out to tensioning.In the present embodiment, by bearing hinge joint one Idle wheel 5 on this tension side 403, this Idle wheel 5 adopts polytetrafluoroethylmaterial material, has self-lubricating function, thus can reduce the frictional force between them when chain or cingulum contact.
A guide pipe 102 extended to opening direction is provided with in the bottom of stretcher housing 1, the port ons that tappet 2 is arranged in stretcher housing 1 is connected to this guide pipe 102, and the tappet 2 of this part is provided with a spring shoulder block 201, spring 3 is set on guide pipe 102 and tappet 2, and between the spring shoulder block 201 being against stretcher housing 1 inner chamber bottom surface and tappet 2 mutually, make stretcher produce a pre-tensioning to chain or cingulum.
Stretch out on the outer termination partly of stretcher housing 1 at tappet 2 and be provided with a tappet outer end 202.This tappet outer end 202 is provided with a pivot hole 204, in the middle of tappet 2, is provided with the oil inlet passage 203 of this pivot hole 204 of a connection and stretcher housing 1 inner chamber.Stretcher passes through a hollow bolt 6 pivot joint of this tappet outer end 202 on the engine simultaneously.
Hollow bolt 6 is provided with a connection outside and the filler opening 601 of oil inlet passage 203, is provided with an one-way valve (figure does not show) in this filler opening 601.
The Rocker arm 4 of hydraulic tappet formula stretcher and tappet 2 all pivot joint on the engine, the pressure that engine motor oil is provided by oil pump is entered the inner chamber of stretcher housing 1 through the oil inlet passage 203 of one-way valve and tappet 2 by hollow bolt 6.Constantly enter in the inner chamber of stretcher housing 1 at machine oil, compression spring 3 recovers distortion gradually, promote tappet 2 away from stretcher housing 1, because tappet 2 is fixing on the engine, Rocker arm 4 can only be promoted by stretcher housing 1 to turn an angle, make the Idle wheel 5 with self-lubricating property on Rocker arm 4 tension side 403 press to chain or cingulum.
The restriction of stretcher You Yu Oscillating arm 4 of the present invention, tappet 2 and stretcher housing 1 not easily fly out.Meanwhile, the leverage of Gai Oscillating arm 4 of You Yu, makes to be easier to when mounted tappet 2 and stretcher housing 1 to be compressed, can the installation and removal of very convenient operator, reduces the splashing of unloading time oil and alleviates the labor intensity of operator.Further, the setting of this Oscillating arm 4, effectively can solve in prior art and adjust the short problem of stroke, make Traffic control system more flexible.
Specific embodiment is to more clearly understand the present invention, do not limit as to the one of right of the present invention, under the prerequisite not departing from present inventive concept, various change can be had, all these to the apparent amendment of described those skilled in the art by be included in this claim scope within.
Claims (4)
1. a hydraulic tappet type stretcher of engine, comprises stretcher housing (1), the tappet (2) be set in stretcher housing (1), to be arranged in stretcher housing (1) and spring (3) between stretcher housing (1) and tappet (2) and for the one-way valve to fuel feeding in stretcher housing (1); It is characterized in that: also comprise pivot joint Oscillating arm (4) on the engine; One end of Suo Shu Oscillating arm (4) be rounded end (402) for being hinged on the housing outer end (101) of stretcher, the other end is tension side (403); Described tappet (2) is by outer tappet outer end (202) pivot joint of stretcher housing (1) on the engine; Also comprise a hollow bolt (6); Described tappet outer end (202) by this hollow bolt (6) pivot joint on the engine; Described one-way valve is arranged on this hollow bolt (6).
2. stretcher according to claim 1, it is characterized in that: near extending to form a guide pipe (102) with stated Oscillating arm (4) joint in described stretcher housing (1), described tappet (2) part in described stretcher housing (1) is slidably connected in this guide pipe (102).
3. stretcher according to claim 1 and 2, is characterized in that: the tension side (403) of Suo Shu Oscillating arm (4) is also articulated with an Idle wheel (5).
4. stretcher according to claim 3, is characterized in that: described Idle wheel (5) adopts the polytetrafluoroethylmaterial material with self-lubricating function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310004086.0A CN103195891B (en) | 2013-01-07 | 2013-01-07 | A kind of hydraulic tappet type stretcher of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310004086.0A CN103195891B (en) | 2013-01-07 | 2013-01-07 | A kind of hydraulic tappet type stretcher of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103195891A CN103195891A (en) | 2013-07-10 |
| CN103195891B true CN103195891B (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310004086.0A Active CN103195891B (en) | 2013-01-07 | 2013-01-07 | A kind of hydraulic tappet type stretcher of engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN103195891B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6444294B2 (en) * | 2015-12-24 | 2018-12-26 | 株式会社椿本チエイン | Tensioner lever |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1811226A (en) * | 2005-01-25 | 2006-08-02 | 株式会社椿本链索 | Hydraulic chain tensioner |
| CN201554509U (en) * | 2009-12-14 | 2010-08-18 | 彭昌其 | Novel distribution device of motorcycle engine |
| CN202073992U (en) * | 2011-05-24 | 2011-12-14 | 奇瑞汽车股份有限公司 | Hydraulic tensioner of engine timing chain |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4127921B2 (en) * | 1999-03-12 | 2008-07-30 | 株式会社オティックス | Hydraulic auto tensioner |
| JP2000274502A (en) * | 1999-03-19 | 2000-10-03 | Otics Corp | Auto tension device |
| JP2002266959A (en) * | 2001-03-06 | 2002-09-18 | Ntn Corp | Hydraulic auto-tensioner and belt transmission device |
-
2013
- 2013-01-07 CN CN201310004086.0A patent/CN103195891B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1811226A (en) * | 2005-01-25 | 2006-08-02 | 株式会社椿本链索 | Hydraulic chain tensioner |
| CN201554509U (en) * | 2009-12-14 | 2010-08-18 | 彭昌其 | Novel distribution device of motorcycle engine |
| CN202073992U (en) * | 2011-05-24 | 2011-12-14 | 奇瑞汽车股份有限公司 | Hydraulic tensioner of engine timing chain |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103195891A (en) | 2013-07-10 |
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Effective date of registration: 20190315 Address after: 317000 east gate of Taizhou City, Zhejiang Province Co-patentee after: Zhejiang Geely Holding Group Co., Ltd. Patentee after: Zhejiang Geely Automobile Research Institute Co., Ltd. Address before: 311228 No. 206 Farmer's Second House in Linjiang Industrial Park, Xiaoshan District, Hangzhou City, Zhejiang Province Co-patentee before: Zhejiang Geely Automobile Research Institute Co., Ltd. Patentee before: Hangzhou Branch, Zhejiang Geely Automobile Research Institute Co., Ltd. Co-patentee before: Zhejiang Geely Holding Group Co., Ltd. |