CN108150478A - A kind of noise-reduction method of steering gear noise test oil cylinder mechanism - Google Patents
A kind of noise-reduction method of steering gear noise test oil cylinder mechanism Download PDFInfo
- Publication number
- CN108150478A CN108150478A CN201711393912.XA CN201711393912A CN108150478A CN 108150478 A CN108150478 A CN 108150478A CN 201711393912 A CN201711393912 A CN 201711393912A CN 108150478 A CN108150478 A CN 108150478A
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- Prior art keywords
- oil
- rack
- noise
- oil cylinder
- piston ring
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of noise-reduction methods of steering gear noise test oil cylinder mechanism：A) in-oil cylinder oil pocket can fill hydraulic oil by oil nozzle, then oil nozzle is sealed by sealing plug, hydraulic oil is entirely sealed in by oil sealing inside oil cylinder, since the material that oil sealing uses is rubber, rack hardly generates noise in motion process, oil pocket is divided into left and right two cavitys by piston, and the hydraulic oil in two cavitys is swapped by the notch on piston ring；B) set acetal resin resilient bushing, reduce rack during the motion with resilient bushing friction caused by noise；Resilient bushing internal diameter is smaller than rack diameter, adds additional an enclasping force, enlarging mechanism damping action to rack, the present invention has the following advantages：Realize the effect of oil cylinder inner rack bidirectional damper；Noise is reduced, fully meets requirement of the automobile steering device when carrying out the experiment of rack noise.
Description
Technical field
The present invention relates to steering gear noise experimental technique field, more particularly to a kind of steering gear noise test oil cylinder mechanism
Noise-reduction method.
Background technology
Steering gear (or being turning machine) is very important component in automobile steering system.It transports the rotation of steering wheel
It is dynamic, the beat movement of tire is converted into, so as to fulfill the turning function of automobile.Automobile steering device is broadly divided by assist type
Three classes：Manual steering gear, hydraulic power steering device, electric booster steering device.In today's society, especially passenger car (household sedan-chair
Vehicle) aspect, it is higher and higher to comfort level requirement by bus, just includes the requirement to noise among these.So current automobile
Corresponding noise valuation can be all carried out before formal put goods on the market.Steering gear as a critical component in automotive system,
The comfort of passenger can be directly influenced, therefore the requirement to noise is very high.Steering gear noise test generally use platform
Frame mechanism loading, and the oil cylinder of traditional rack mechanism loading can only be generated damping and be made in one direction using throttle valve
With.
Invention content
The technical problems to be solved by the invention are in view of the deficiencies of the prior art, to provide a kind of reduction noise while reality
The noise-reduction method of the steering gear noise test oil cylinder mechanism of existing oil cylinder inner rack bidirectional damper effect.
In order to solve the above technical problems, the technical scheme is that：A kind of steering gear noise test oil cylinder mechanism
Noise-reduction method, the rack that the steering gear noise test oil cylinder mechanism includes oil cylinder, is axially movable, the rack shaft
It is set to across oil cylinder, one end of rack stretches out oil cylinder and passes through housing, the engagement of rack and pinion axis, and the other end of rack is equipped with limit
Position mechanism, for oil pocket between the rack outer wall and oil cylinder inner wall, the oil pocket both ends are equipped with oil sealing, in the oil pocket
Equipped with piston that oil pocket is divided into two cavitys on rack is socketed in, piston is equipped with piston ring, and the piston ring outer rim is set
Jagged, the oil sealing is arranged between rack outer wall and oil cylinder inner wall, the oil sealing be rubber oil sea, the piston
Ring is teflon piston ring, and the oil cylinder is equipped with the oil nozzle of connection oil pocket, and the oil nozzle is equipped with sealing plug,
The position-limit mechanism includes the resilient bushing being socketed on rack, and stop collar is socketed with outside the resilient bushing, described
The internal diameter of resilient bushing is less than rack diameter, and the resilient bushing is acetal resin bushing；
It is characterized in that：The method includes the following steps：
A) in-oil cylinder oil pocket can fill hydraulic oil by oil nozzle, then be sealed oil nozzle by sealing plug, hydraulic oil
It is entirely sealed in inside oil cylinder by oil sealing, since the material that oil sealing uses is rubber, rack is hardly produced in motion process
Oil pocket is divided into left and right two cavitys by raw noise, piston, and the hydraulic oil in two cavitys is handed over by the notch on piston ring
It changes；
Gear shaft and rack are to be intermeshed, the position that can be moved axially by rotating gear shaft come adjusting gear rack, tooth
Item during the motion can the movement with piston, since hydraulic oil is only capable of passing through from the notch of piston ring, and notch size compared with
Small, fluid cannot be run through, this will generate larger oil resistance to hinder the movement of piston i.e. rack, so as to play resistance
The effect of Buddhist nun；The function of oil resistance is adjusted with regard to that can play by the size and number of notch on regulating piston ring, so as to change damping
Size；Rack can play the role of damping toward both direction movement；Teflon piston ring is soft piston ring, oily
Liquid by when can absorb a part of impact, avoid generating apparent liquid stream noise；
B) set acetal resin resilient bushing, reduce rack during the motion with resilient bushing friction caused by make an uproar
Sound；Resilient bushing internal diameter is smaller than rack diameter, and an enclasping force, enlarging mechanism damping action are added additional to rack.
The present invention using the above structure, has the following advantages：1st, gear shaft and rack are intermeshings, can pass through rotation
Gear shaft come adjusting gear rack axial movement position, rack during the motion can the movement with piston, due to hydraulic oil only
It can pass through from the notch of piston ring, and notch size is smaller, fluid cannot be run through, this will generate larger oil resistance to hinder
Hinder the movement of piston i.e. rack, so as to play the role of damping；By the size and number of notch on regulating piston ring just
The function of adjusting oil resistance can be played, so as to change the size of damping；Rack can play the role of damping toward both direction movement；
Teflon piston ring is soft piston ring, fluid by when can absorb a part of impact, avoid generating apparent liquid stream
Noise；2nd, set acetal resin resilient bushing, reduce rack during the motion with resilient bushing friction caused by noise；
Resilient bushing internal diameter is smaller than rack diameter, and an enclasping force, enlarging mechanism damping action are added additional to rack.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments；
Fig. 1 is the external structure schematic diagram of steering gear noise test oil cylinder mechanism in the present invention；
Fig. 2 is the cross section structure schematic diagram of steering gear noise test oil cylinder mechanism in the present invention；
Fig. 3 is the structure chart of piston ring in the present invention；
Fig. 4 is the structure chart of position-limit mechanism in the present invention；
In Fig. 1~Fig. 4,1, rack；2nd, oil cylinder；3rd, oil pocket；4th, gear shaft；5th, oil sealing；6th, piston；7th, piston ring；8、
Notch；9th, oil nozzle；11st, housing；16th, resilient bushing；17th, stop collar.
Specific embodiment
The invention discloses a kind of noise-reduction methods of steering gear noise test oil cylinder mechanism, turn to as shown in Figure 1 to 4
The rack 1 that device noise test oil cylinder mechanism includes oil cylinder 2, is axially movable, rack 1 are set axially across oil cylinder 2, rack 1
One end stretch out oil cylinder 2 and pass through housing 11, the other end of rack 1 is equipped with position-limit mechanism, between 2 inner wall of 1 outer wall of rack and oil cylinder
For oil pocket 3,3 both ends of oil pocket are equipped with oil sealing 5.
Rack 1 is engaged with gear shaft 4.Oil sealing 5 is arranged between 2 inner wall of 1 outer wall of rack and oil cylinder, and oil sealing 5 is rubber oil
Envelope.It is equipped with to be socketed on rack 1 in oil pocket 5 and is divided to oil pocket 3 to the piston 6 for two cavitys, piston 6 is equipped with piston ring 7, piston
7 outer rim of ring is equipped with notch 8, and piston ring 7 is teflon piston ring.Oil cylinder 2 is equipped with the oil nozzle 9 of connection oil pocket 3, oil nozzle 9
It is equipped with sealing plug.Rack mechanism loading both ends are respectively equipped with connector, and rack mechanism loading passes through connector and steering gear
Connection.
Position-limit mechanism includes the resilient bushing 16 being socketed on rack 1, and stop collar 17 is socketed with outside resilient bushing 16.Elasticity
The internal diameter of bushing 16 is less than 1 diameter of rack.Resilient bushing 16 is acetal resin bushing.
The noise-reduction method of rack mechanism loading includes the following steps：
A) oil pocket 3 in oil cylinder 2 can fill hydraulic oil by oil nozzle 9, then be sealed oil nozzle 9 by sealing plug, liquid
Pressure oil is entirely sealed in by oil sealing 5 inside oil cylinder 2, and since the material that oil sealing 5 uses is rubber, rack 1 is several in motion process
Noise will not be generated, oil pocket 3 is divided to for left and right two cavitys by piston 6, and the hydraulic oil in two cavitys 3 passes through on piston ring 7
Notch 8 swap；
Due to the limitation of different experiment condition or experimental site, the initial position of mechanism loading middle rack 1 can differ
It causes, so being added to a gear shaft 4 in the mechanism of the present invention.Gear shaft 4 and rack 1 are intermeshings, can pass through rotation
Gear shaft 4 comes the position of the axial movement of adjusting gear rack 1, fully meets the requirement of experiment condition or test site.Rack 1 is moving
In the process can the movement with piston 6, since hydraulic oil is only capable of from the notch 8 of piston ring 7 passing through, and 8 size of notch is smaller, oil
Liquid cannot be run through, this will generate larger oil resistance to hinder the movement of the namely rack 1 of piston 6, so as to play damping
Effect；The function of oil resistance is adjusted with regard to that can play by the size and number of notch 8 on regulating piston ring 7, so as to change damping
Size；Rack 1 can play the role of damping toward both direction movement, and traditional mechanism is due to the operation principle of throttle valve,
Damping action can be only generated in one direction；Larger liquid stream noise is often generated when fluid passes through throttle valve, with biography
Unlike the hydraulic damping mechanism loading of system, in mechanism, fluid is not needed to through throttle valve, but by piston ring 7
Notch 8.Teflon piston ring is soft piston ring, fluid by when can absorb a part of impact, avoid generating bright
Aobvious liquid stream noise；
B) acetal resin resilient bushing is set, reduction rack 1 rubs produced with resilient bushing 16 during the motion
Noise；16 internal diameter of resilient bushing is smaller than 1 diameter of rack, and an enclasping force, enlarging mechanism damping are added additional to rack 1
Effect.
The main portions of noise can be generated in entire mechanism following several places：1st, oil pocket hydraulic oil in left and right is swapping
When the liquid stream sound that is generated by notch of fluid；2nd, the impact sound during rack and pinion engagement；3rd, in rack motion process with lining
The grating that set friction generates.
And the present invention employs special construction or material for these positions for being also easy to produce noise, so can effectively drop
Level of noise during low use, so as to meet the requirement of low noise.In addition it can pass through the size for adjusting each parts, position
It puts etc. to adjust the damping size that entire mechanism can generate, so as to meet the requirement of disparity items different loads.This is turns to
Device carries out load-carrying noise experiment and provides very favorable experiment condition.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that present invention specific implementation is not by aforesaid way
Limitation, as long as employing the various improvement of technical scheme of the present invention progress or not improved directly applying to other occasions
, within protection scope of the present invention.
Claims (1)
1. a kind of noise-reduction method of steering gear noise test oil cylinder mechanism, the steering gear noise test oil cylinder mechanism packet
The rack for include oil cylinder, being axially movable, the rack are set axially across oil cylinder, and one end of rack stretches out oil cylinder and passes through shell
Body, the engagement of rack and pinion axis, the other end of rack are equipped with position-limit mechanism, are oil between the rack outer wall and oil cylinder inner wall
Chamber, the oil pocket both ends are equipped with oil sealing, the work for being socketed in and oil pocket being divided into two cavitys on rack are equipped in the oil pocket
Plug, piston are equipped with piston ring, and the piston ring outer rim is equipped with notch, and the oil sealing is arranged in rack outer wall and oil cylinder
Between wall, the oil sealing is rubber oil sea, and the piston ring is teflon piston ring, and the oil cylinder, which is equipped with, to be connected
The oil nozzle of logical oil pocket, the oil nozzle are equipped with sealing plug, and the position-limit mechanism includes being socketed in the elasticity lining on rack
Set, the resilient bushing are socketed with stop collar outside, and the internal diameter of the resilient bushing is less than rack diameter, the elasticity lining
It covers for acetal resin bushing；
It is characterized in that：The method includes the following steps：
A) in-oil cylinder oil pocket can fill hydraulic oil by oil nozzle, then be sealed oil nozzle by sealing plug, hydraulic oil passes through
Oil sealing is entirely sealed in inside oil cylinder, and since the material that oil sealing uses is rubber, rack is hardly generated in motion process and made an uproar
Oil pocket is divided into left and right two cavitys by sound, piston, and the hydraulic oil in two cavitys is swapped by the notch on piston ring；
Gear shaft and rack are intermeshings, and the position that can be moved axially by rotating gear shaft come adjusting gear rack, rack exists
Movement of the meeting with piston in motion process, since hydraulic oil is only capable of from the notch of piston ring passing through, and notch size is smaller, oil
Liquid cannot be run through, this will generate larger oil resistance to hinder the movement of piston i.e. rack, so as to play damping
Effect；The function of oil resistance is adjusted with regard to that can play by the size and number of notch on regulating piston ring, so as to change the big of damping
It is small；Rack can play the role of damping toward both direction movement；Teflon piston ring is soft piston ring, and fluid leads to
It is out-of-date to absorb part impact, it avoids generating apparent liquid stream noise；
B) set acetal resin resilient bushing, reduce rack during the motion with resilient bushing friction caused by noise；
Resilient bushing internal diameter is smaller than rack diameter, and an enclasping force, enlarging mechanism damping action are added additional to rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711393912.XA CN108150478A (en) | 2017-12-21 | 2017-12-21 | A kind of noise-reduction method of steering gear noise test oil cylinder mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711393912.XA CN108150478A (en) | 2017-12-21 | 2017-12-21 | A kind of noise-reduction method of steering gear noise test oil cylinder mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108150478A true CN108150478A (en) | 2018-06-12 |
Family
ID=62464158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711393912.XA Pending CN108150478A (en) | 2017-12-21 | 2017-12-21 | A kind of noise-reduction method of steering gear noise test oil cylinder mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108150478A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483505A (en) * | 2020-11-27 | 2021-03-12 | 山东艾泰克环保科技股份有限公司 | Dustproof steering oil cylinder |
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|---|---|---|---|---|
| CN201673016U (en) * | 2010-05-21 | 2010-12-15 | 芜湖恒隆汽车转向系统有限公司 | Air tightness detector of cylinder assembly of automobile steering device |
| CN102837734A (en) * | 2012-09-20 | 2012-12-26 | 荆州恒隆汽车零部件制造有限公司 | Liquid current regulator for improving hydraulic pressure noise abnormity of steering gear |
| CN103832466A (en) * | 2014-03-17 | 2014-06-04 | 安徽江淮汽车股份有限公司 | Mechanical automobile steering device preventing abnormal sounds |
| CN105240531A (en) * | 2015-10-22 | 2016-01-13 | 芜湖恒隆汽车转向系统有限公司 | Sealing structure of gear and rack steering device |
| CN205971465U (en) * | 2016-08-31 | 2017-02-22 | 江铃控股有限公司 | Limit structure of steering device |
| CN206710106U (en) * | 2017-05-09 | 2017-12-05 | 荆州恒隆汽车技术(检测)中心 | A kind of load device of steering gear noise measuring equipment |
-
2017
- 2017-12-21 CN CN201711393912.XA patent/CN108150478A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201673016U (en) * | 2010-05-21 | 2010-12-15 | 芜湖恒隆汽车转向系统有限公司 | Air tightness detector of cylinder assembly of automobile steering device |
| CN102837734A (en) * | 2012-09-20 | 2012-12-26 | 荆州恒隆汽车零部件制造有限公司 | Liquid current regulator for improving hydraulic pressure noise abnormity of steering gear |
| CN103832466A (en) * | 2014-03-17 | 2014-06-04 | 安徽江淮汽车股份有限公司 | Mechanical automobile steering device preventing abnormal sounds |
| CN105240531A (en) * | 2015-10-22 | 2016-01-13 | 芜湖恒隆汽车转向系统有限公司 | Sealing structure of gear and rack steering device |
| CN205971465U (en) * | 2016-08-31 | 2017-02-22 | 江铃控股有限公司 | Limit structure of steering device |
| CN206710106U (en) * | 2017-05-09 | 2017-12-05 | 荆州恒隆汽车技术(检测)中心 | A kind of load device of steering gear noise measuring equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483505A (en) * | 2020-11-27 | 2021-03-12 | 山东艾泰克环保科技股份有限公司 | Dustproof steering oil cylinder |
| CN112483505B (en) * | 2020-11-27 | 2022-11-11 | 山东艾泰克环保科技股份有限公司 | Dustproof steering oil cylinder |
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| PB01 | Publication | ||
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Application publication date: 20180612 |