CN205824069U - A kind of engine hydraulic stretcher - Google Patents
A kind of engine hydraulic stretcher Download PDFInfo
- Publication number
- CN205824069U CN205824069U CN201620638839.2U CN201620638839U CN205824069U CN 205824069 U CN205824069 U CN 205824069U CN 201620638839 U CN201620638839 U CN 201620638839U CN 205824069 U CN205824069 U CN 205824069U
- Authority
- CN
- China
- Prior art keywords
- spring
- guide pillar
- cavity
- check valve
- stretcher
- 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
Links
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a kind of engine hydraulic stretcher, including housing and guide pillar, be provided with cavity in housing, guide pillar is installed in cavity；Guide pillar is hollow structure, is provided with spring holder and spring in guide pillar, and spring holder is arranged on inside the turn of spring；The bottom of cavity is provided with check valve；Spring one end is connected on check valve；Being provided with fuel feeding path below check valve, fuel feeding path is connected with cavity；Housing is provided with pin hole, and pin hole is provided with the latch of locking guide pillar.This utility model simple in construction, is inserted in pin hole by latch before assembling so that guide pillar locking；Pulling out latch, guide pillar under spring action, protrudes upward, and hydraulic oil enters in the high pressure chest of stretcher assembly from fuel feeding path, and the tensile force of stretcher is the summation of oil pressure and spring force；Compression guide pillar, one-way valve spring compresses downwards, and the fluid of high pressure chest is in compressive state, reduces amplitude and the drive noise of timing chain, provides stable tensile force with this.
Description
Technical field
This utility model belongs to technical field of automobile, especially relates to a kind of engine hydraulic stretcher.
Background technology
Along with making the continuous progressive of car technical merit and industrial development, the Timing Belt of partial engine is by electromotor just
Time chain substituted.Timing chain typically requires the tensioning installing stretcher additional to realize chain in the course of the work, it is to avoid chain
Time occurs that loose or long phenomenon crossed by chain after using, and to alleviate the noise of electromotor, improves precision and longevity that transmitter runs
Life.At present, chain for automobile engine bar stretcher is only to lean on the elastic force of spring to carry out tensioning mostly, existence fall the most in various degree
Make an uproar, shortcoming that damping effect is bad；Certain existing stretcher also has some to use pawl structures, but this structure guide pillar is axial
Quantity of motion is relatively big, and the vibration of chain and noise are the biggest, is easily damaged stretcher and lost efficacy；And when assembling, stretcher does not has yet
Lockable mechanism, assembles the most difficult, it is therefore necessary to improved.
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 engine hydraulic tensioning
Device, it has reduces the vibration of engine chain, reduction noise and feature easy to assembly.
In order to realize above-mentioned purpose, this utility model be the technical scheme is that a kind of engine hydraulic stretcher,
Including housing and guide pillar, being provided with cavity in described housing, described guide pillar is installed in cavity；Described guide pillar is hollow structure, institute
Being provided with spring holder and spring in stating guide pillar, described spring holder is arranged on inside the turn of spring；Described cavity
Bottom be provided with check valve；One end of described spring is connected on check valve；The lower section of described check valve is provided with fuel feeding path,
Described fuel feeding path is connected with cavity；It is provided with pin hole on described housing, described pin hole is provided with locking guide pillar
Latch.
On described housing, fixing hole is set.
Described spring holder is provided with the step surface abutted against with spring one end.
Described check valve includes valve seat, steel ball and bonnet, and on the valve seat that described bonnet is arranged, described steel ball is installed on bonnet
In, it is provided with one-way valve spring between described bonnet and steel ball.
Described latch uses plastic material made.
After using said structure, compared to the prior art this utility model has the advantage, that the letter of this utility model structure
Single, it is inserted in pin hole by latch before assembling so that guide pillar locking, assembles very convenient；Pulling out latch, guide pillar is at spring
Under active force, protruding upward, hydraulic oil enters in the high pressure chest of stretcher assembly from fuel feeding path, high pressure chest and low pressure chamber oil
Pressing equal, the tensile force of stretcher is the summation of oil pressure and spring force；Compression guide pillar, one-way valve spring compresses downwards, high pressure
The fluid in chamber is in compressive state, owing to the compress of machine oil is little, forms bigger damping, and then during back pressure, guide pillar hinders
Buddhist nun is relatively big, reduces amplitude and the drive noise of timing chain, provides stable tensile force with this.
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 engine hydraulic stretcher, including housing 10 and guide pillar 11, is provided with in housing 10
Cavity 12, guide pillar 11 is installed in cavity 12；Fixing hole 18 is set on housing 10, is used for installing fixing.Guide pillar 11 is tied for hollow
Structure, is provided with spring holder 13 and spring 14 in guide pillar 11, spring holder 13 is arranged on inside the turn of spring 14；Bullet
Spring alignment pin 13 is provided with the step surface 19 abutted against with spring 14 one end so that spring 14 is installed stable, prevents deviation.Cavity
The bottom of 12 is provided with check valve；Check valve includes valve seat 20, steel ball 21 and bonnet 22, on the valve seat 20 that bonnet 22 is arranged, and steel ball
21 are installed in bonnet 22, are provided with one-way valve spring 23 between bonnet 22 and steel ball 21；One end of spring 14 is connected to unidirectional
On valve；The lower section of check valve is provided with fuel feeding path 15, and fuel feeding path 15 is connected with cavity 12；It is provided with latch on housing 10
Hole 16, pin hole 16 is provided with the latch 17 of locking guide pillar 11；It is inserted in pin hole 16 by latch 17 before assembling so that lead
Post 11 locking, assembles very convenient；Pulling out latch 17, guide pillar 11, under the active force of spring 14, protrudes upward, and hydraulic oil is from confession
Oil path 15 enters in the high pressure chest of stretcher assembly, and high pressure chest is equal with low pressure chamber oil pressure, and the tensile force of stretcher is oil
Pressure and the summation of spring force；Compression guide pillar 11, one-way valve spring 23 compresses downwards, and the fluid of high pressure chest is in compressive state,
Owing to the compress of machine oil is little, form bigger damping, and then during back pressure, guide pillar 11 damps relatively big, reduces timing chain
Amplitude and drive noise, provide stable tensile force with this；Latch 17 uses plastic material made, practical, cost
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 (5)
1. an engine hydraulic stretcher, including housing (10) and guide pillar (11), is provided with cavity (12) in described housing (10),
Described guide pillar is installed in cavity (12)；It is characterized in that: described guide pillar (11) is hollow structure, arrange in described guide pillar (11)
Having spring holder (13) and spring (14), described spring holder (13) is arranged on inside the turn of spring (14)；Described
The bottom of cavity (12) is provided with check valve；One end of described spring (14) is connected on check valve；The lower section of described check valve sets
Being equipped with fuel feeding path (15), described fuel feeding path (15) is connected with cavity (12)；Described housing is provided with pin hole on (10)
(16), described pin hole (16) is provided with the latch (17) of locking guide pillar (11).
A kind of engine hydraulic stretcher the most according to claim 1, it is characterised in that: arrange solid on described housing (10)
Determine hole (18).
A kind of engine hydraulic stretcher the most according to claim 1, it is characterised in that: described spring holder (13) sets
It is equipped with the step surface (19) abutted against with spring (14) one end.
A kind of engine hydraulic stretcher the most according to claim 1, it is characterised in that: described check valve includes valve seat
(20), steel ball (21) and bonnet (22), on the valve seat (20) that described bonnet (22) is arranged, described steel ball (21) is installed on bonnet
(22), in, one-way valve spring (23) between described bonnet (22) and steel ball (21), it is provided with.
A kind of engine hydraulic stretcher the most according to claim 1, it is characterised in that: described latch (17) uses plastics
Material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620638839.2U CN205824069U (en) | 2016-06-22 | 2016-06-22 | A kind of engine hydraulic stretcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620638839.2U CN205824069U (en) | 2016-06-22 | 2016-06-22 | A kind of engine hydraulic stretcher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205824069U true CN205824069U (en) | 2016-12-21 |
Family
ID=58146561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620638839.2U Expired - Fee Related CN205824069U (en) | 2016-06-22 | 2016-06-22 | A kind of engine hydraulic stretcher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205824069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019061464A1 (en) * | 2017-09-30 | 2019-04-04 | 舍弗勒技术股份两合公司 | Locking pin for use with locking spring of locking mechanical tensioner and mechanical tensioner |
-
2016
- 2016-06-22 CN CN201620638839.2U patent/CN205824069U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019061464A1 (en) * | 2017-09-30 | 2019-04-04 | 舍弗勒技术股份两合公司 | Locking pin for use with locking spring of locking mechanical tensioner and mechanical tensioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MX2009002276A (en) | Railroad car draft gear. | |
| GB2457861A (en) | Increased axial rate and improved durability of an elastomeric bushing | |
| MX2010001562A (en) | Spring assembly. | |
| CN205824069U (en) | A kind of engine hydraulic stretcher | |
| CN205824064U (en) | A kind of chain tensioning device | |
| CN108953462B (en) | In-line hydraulic damper | |
| CN102121507B (en) | Energy consumption shock absorber | |
| CN204692442U (en) | Inversion type front buffer gear in motorcycle | |
| CN206017602U (en) | A kind of back-moving spring external belt stress | |
| CN201744711U (en) | Pressure jig positioning pin | |
| CN104728336A (en) | Inverted-type front shock absorption device of motorcycle | |
| KR101980594B1 (en) | A vibration-proof hammer with shock and vibration reduced and lightweight | |
| CN206130011U (en) | Take timing chain tensioning ware of constant voltage control valve | |
| CN205824061U (en) | A kind of engine timing chain stretcher | |
| CN201696424U (en) | Vibration reduction bolt of automobile cylinder cover hood | |
| CN205824070U (en) | A kind of fluid pressure type timing chain tensioner | |
| CN203856978U (en) | Chain tensioner | |
| CN201687997U (en) | Hydraulic pressure one-way control valve | |
| CN214999169U (en) | Tight jacking device for outboard engine | |
| CN205824068U (en) | A kind of hydraulic chain adjuster | |
| EP2278153B1 (en) | Valve Arrangement | |
| DE602005007512D1 (en) | PRESSURE VIBRATION DAMPER FOR THE FUEL INJECTION SYSTEM OF A COMBUSTION ENGINE | |
| CN220838865U (en) | Quick assembly device for valve core steel wire check ring | |
| CN210290621U (en) | Chain tensioner | |
| CN201963792U (en) | Absorber |
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 |