CN205824070U - A kind of fluid pressure type timing chain tensioner - Google Patents
A kind of fluid pressure type timing chain tensioner Download PDFInfo
- Publication number
- CN205824070U CN205824070U CN201620642410.0U CN201620642410U CN205824070U CN 205824070 U CN205824070 U CN 205824070U CN 201620642410 U CN201620642410 U CN 201620642410U CN 205824070 U CN205824070 U CN 205824070U
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- CN
- China
- Prior art keywords
- guide pillar
- spring
- cavity
- chain
- bonnet
- 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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Abstract
The utility model discloses a kind of fluid pressure type timing chain tensioner, including housing and guide pillar, housing is provided with cavity, and guide pillar is installed in cavity；Guide pillar is hollow structure, is provided with spring domestic in guide pillar；Being provided with guide pillar spring on spring is domestic, the bottom of cavity is provided with valve seat, and the end of valve seat is provided with bonnet, is provided with steel ball in bonnet, is provided with one-way valve spring between bonnet and steel ball；It is provided with groove on the inwall of cavity, groove is provided with and stops the snap ring that guide pillar extends.This utility model simple in construction, by snap ring, housing can be connected to guide pillar, the end wall of groove can contact with snap ring in guide pillar extends motor process so that when guide pillar is fully extended relative to cavity, the no longer retroaction of the spring force of guide pillar to chain, beneficially efficiency and system durability；And reduce hardness when guide pillar compensates by guide pillar spring, it is ensured that keep suitable interaction force between chain tensioning device and chain, reduce the vibration of engine chain and reduce noise.
Description
Technical field
This utility model belongs to technical field of automobile, especially relates to a kind of fluid pressure type timing chain tensioner.
Background technology
Along with making the continuous progressive of car technical merit and industrial development, the Timing Belt of partial engine is started chain
Bar is substituted, and stretcher is the more conventional accessory of a kind of ratio in automobile engine, and it is to the regulation of timing chain and correction
Play vital effect.However as the abrasion of chain, existing stretcher guide pillar extends according to design to strain chain
Lax, when compensating guide pillar under stretcher is in brand-new state and during the use cycle of worn chain part and extending, tuning
Change can be compensated by over-tension stretcher during the use cycle of stretcher, and the over-tension meeting of stretcher
Efficiency and system durability are had a negative impact.On the other hand, existing stretcher uses pawl structures, but this structure
The amount of axial movement of guide pillar is relatively big, and the vibration of chain and noise are relatively big, is easily damaged stretcher and lost efficacy.
Summary of the invention
The purpose of this utility model is the deficiency existed for above-mentioned prior art, it is provided that a kind of fluid pressure type timing chain is opened
Tight device, it has reduces the vibration of engine chain, reduction noise, beneficially efficiency and the feature of system durability.
In order to realize above-mentioned purpose, this utility model be the technical scheme is that a kind of fluid pressure type timing chain is opened
Tight device, including housing and guide pillar, described housing is provided with cavity, and described guide pillar is installed in cavity；Described guide pillar is hollow structure,
It is provided with spring domestic in described guide pillar；Being provided with guide pillar spring on described spring is domestic, the bottom of described cavity is provided with valve
Seat, the end of described valve seat is provided with bonnet, is provided with steel ball, is provided with unidirectional between described bonnet and steel ball in described bonnet
Valve spring；It is provided with groove on the inwall of described cavity, described groove is provided with and stops the snap ring that guide pillar extends.
Described guide pillar has been horizontally set with two through holes.
Described spring is domestic is provided with the step surface abutted against with guide pillar spring.
Described snap ring is plastic material.
After using said structure, compared to the prior art this utility model has the advantage, that the letter of this utility model structure
Single, by snap ring, housing can be connected to guide pillar, the end wall of groove can contact with snap ring in guide pillar extends motor process so that
When guide pillar is fully extended relative to cavity, the no longer retroaction of the spring force of guide pillar is to chain, and beneficially efficiency and system is durable
Property；And reduce hardness when guide pillar compensates by guide pillar spring, it is ensured that keep the most mutually between chain tensioning device and chain
Active force, reduces the vibration of engine chain and reduces noise.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
The following stated is only preferred embodiment of the present utility model, the most therefore limits protection model of the present utility model
Enclose, with embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Embodiment, as shown in Figure 1: a kind of fluid pressure type timing chain tensioner, including housing 10 and guide pillar 11, housing 10 sets
Cavity 12, guide pillar 11 is had to be installed in cavity 12；Guide pillar 11 is hollow structure, is provided with spring domestic 13 in guide pillar 11；Spring
Being provided with guide pillar spring 14 on domestic 13, spring domestic 13 is provided with the step surface 22 abutted against with guide pillar spring 14, for energy
Enough very firm installation guide pillar springs 14, prevent deviation.Hardness when guide pillar 11 compensates is reduced by guide pillar spring 14, it is ensured that
Keep suitable interaction force between chain tensioning device and chain, reduce the vibration of engine chain and reduce noise.Cavity
The bottom of 12 is provided with valve seat 15, and the end of valve seat 15 is provided with bonnet 16, is provided with steel ball 17, bonnet 16 and steel in bonnet 16
One-way valve spring 18 it is provided with between ball 17；By valve seat 15, bonnet 16, steel ball 17 and check valve 18, generation hydraulic pressure can be worked in coordination with
Stretcher function.Guide pillar 11 has been horizontally set with two through holes 21 so that the working oil flowed out in cavity 12 to guide pillar 11 and housing 10 it
Between gap, its viscous drag can produce damping force, and therefore guide pillar 11 can slowly move.It is provided with groove on the inwall of cavity 12
19, groove 19 is provided with and stops the snap ring 20 that guide pillar 11 extends；The end wall of groove 19 can extend motion during with snap ring
20 contacts, utilize snap ring 20 that guide pillar 11 can be made to stop；And housing 10 can be connected to guide pillar 11 by snap ring 20, groove 19
End wall extends in motor process can contact with snap ring 20 at guide pillar 11 so that when guide pillar 11 is fully extended relative to cavity 12,
The no longer retroaction of the spring force of guide pillar 11 to chain, beneficially efficiency and system durability；Snap ring 20 is plastic material, practicality
Relatively strong, cost is relatively low.
Last it is noted that all within spirit of the present utility model and principle, any amendment, the equivalent made are replaced
Change, improvement etc., within should be included in protection domain of the present utility model.
Claims (4)
1. a fluid pressure type timing chain tensioner, including housing (10) and guide pillar (11), described housing (10) is provided with cavity
(12) in, described guide pillar (11) is installed on cavity (12)；It is characterized in that: described guide pillar (11) is hollow structure, described guide pillar
(11) spring domestic (13) it is provided with in；Guide pillar spring (14) is installed on described spring domestic (13), described cavity (12)
Bottom is provided with valve seat (15), and the end of described valve seat (15) is provided with bonnet (16), and described bonnet is provided with steel ball in (16)
(17), one-way valve spring (18) it is provided with between described bonnet (16) and steel ball (17)；Arrange on the inwall of described cavity (12)
Fluted (19), described groove (19) are provided with and stop the snap ring (20) that guide pillar (11) extends.
A kind of fluid pressure type timing chain tensioner the most according to claim 1, it is characterised in that: the upper horizontal stroke of described guide pillar (11)
It is provided with two through holes (21).
A kind of fluid pressure type timing chain tensioner the most according to claim 1, it is characterised in that: described spring domestic (13)
It is provided with the step surface (22) abutted against with guide pillar spring (14).
A kind of fluid pressure type timing chain tensioner the most according to claim 1, it is characterised in that: described snap ring (20) is for moulding
Material material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620642410.0U CN205824070U (en) | 2016-06-22 | 2016-06-22 | A kind of fluid pressure type timing chain tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620642410.0U CN205824070U (en) | 2016-06-22 | 2016-06-22 | A kind of fluid pressure type timing chain tensioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205824070U true CN205824070U (en) | 2016-12-21 |
Family
ID=58146594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620642410.0U Expired - Fee Related CN205824070U (en) | 2016-06-22 | 2016-06-22 | A kind of fluid pressure type timing chain tensioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205824070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397526A (en) * | 2018-04-19 | 2018-08-14 | 上海利来链条有限公司 | Tensioner |
-
2016
- 2016-06-22 CN CN201620642410.0U patent/CN205824070U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397526A (en) * | 2018-04-19 | 2018-08-14 | 上海利来链条有限公司 | Tensioner |
| CN108397526B (en) * | 2018-04-19 | 2024-01-16 | 上海利来链条有限公司 | Tensioning device |
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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: 20161221 Termination date: 20180622 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |