CN207396036U - A kind of steering gear pressure safety valve supports guide sleeve reliability detecting device - Google Patents
A kind of steering gear pressure safety valve supports guide sleeve reliability detecting device Download PDFInfo
- Publication number
- CN207396036U CN207396036U CN201721541363.1U CN201721541363U CN207396036U CN 207396036 U CN207396036 U CN 207396036U CN 201721541363 U CN201721541363 U CN 201721541363U CN 207396036 U CN207396036 U CN 207396036U
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- fixed frame
- rubber
- pneumatic bag
- limited block
- guide sleeve
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model provides a kind of steering gear pressure safety valve support guide sleeve reliability detecting device, including valve body, test bracket, servomotor, gas pressurized pump, rubber pneumatic bag, sponge limited block, helical axis end is equipped with supply tube chamber and sealing fixed frame, it seals fixed frame and is equipped with rubber pneumatic bag, the flexible rubber hose of gas pressurized pump is connected on supply tube chamber, sealing fixed frame is located in spring cavity, sponge limited block is equipped in spring cavity, sponge limited block is located at below rubber pneumatic bag, and the contact surface for sealing fixed frame and spring cavity is equipped with O-ring seal.The utility model device solves the problems, such as the O-shaped rubber sealing reliability detection of support guide sleeve, the assembling extruding force of O-shaped cushion rubber is simulated with the expansion extruding force of rubber pneumatic bag, sponge limited block reduces up-down stretch active force, it generates simultaneously and equidistantly follows displacement, servomotor moves up and down, rubber pneumatic bag is enable really to reflect O-shaped cushion rubber breakage environment, eliminates damaged factor.
Description
Technical field
The utility model is related to the technical field of automobile power steering, especially a kind of steering gear pressure safety valve support
Guide sleeve reliability detecting device.
Background technology
Pressure safety valve is that automobile power steering pressure is controlled, and prevents power steering stgear oil temperature from rising sharply, causes
Oil pump scaling loss.Its function is setting power steering gear system safe pressure value, when system pressure maintains safe pressure section,
Not off-load is to keep system output torque, when " pressure " exceeds specified value, i.e. the state into off-load, and the direct oil return of pressure oil
Case.
The valve body of pressure safety valve is equipped with gas vent, for discharging instantaneous pressure compressed gas branch when spring is compressed
Guide sleeve is supportted for fixed spring and steel ball, steel ball is made to do off-load in valve body or system pressure is maintained to stablize, while supports guide sleeve
Separating spring chamber and steel ball chamber, are sealed using O-shaped cushion rubber, and valve body is that inner cavity is made by way of turning drilling to polish
Still O-shaped cushion rubber can be caused damaged, cause seal failure, oil is made to enter in spring cavity body there are burr afterwards, change system peace
Total head force value rated range, the problem of causing oil pump scaling loss.
Utility model content
The purpose of this utility model is for the above problem existing for existing technology, provides a kind of steering gear pressure peace
Full valve supports guide sleeve reliability detecting device, and the utility model device solves the O-shaped rubber sealing reliability inspection of support guide sleeve
The problem of survey, simulates the assembling extruding force of O-shaped cushion rubber with the expansion extruding force of rubber pneumatic bag, and sponge limited block reduces up-down stretch
Active force, while generate and equidistantly follow displacement, servomotor moves up and down, and rubber pneumatic bag is enable really to reflect that O-shaped cushion rubber is broken
Environment is damaged, eliminates damaged factor.
For this purpose, the technical solution that the utility model is taken is：
A kind of steering gear pressure safety valve supports guide sleeve reliability detecting device, including valve body, test bracket, servo electricity
Machine, gas pressurized pump, rubber pneumatic bag, sponge limited block, test bracket are equipped with spiral and stablize spindle housing and motor fixing frame, electricity
Machine fixed frame is equipped with servomotor, and spiral stablizes spindle housing and is equipped with spirally-guided set, and the helical axis of servomotor is connected to
In spirally-guided set, helical axis end is equipped with supply tube chamber and sealing fixed frame, and sealing fixed frame is equipped with rubber pneumatic bag, gas
The flexible rubber hose of force (forcing) pump is connected on supply tube chamber, and sealing fixed frame is located in spring cavity, and sponge limited block is equipped in spring cavity,
Sponge limited block is located at below rubber pneumatic bag, and the contact surface for sealing fixed frame and spring cavity is equipped with O-ring seal, seals fixed frame
It is equipped with pressure gauge, pressure gauge connection rubber pneumatic bag.
As further preferred, the sponge limited block is equipped with rubber coating, and the rubber coating thickness is 1mm ~ 2mm.
As further preferred, the height of the sponge limited block is 0.1 times ~ 0.3 times of the spring cavity depth.
As further preferred, the flexible rubber hose is equipped with only gas folder.
The advantageous effect of above-mentioned technical proposal is：
The valve body that the turning of the utility model device is completed is placed on test bracket, passes through moving up and down pair for servomotor
Rubber pneumatic bag carries out extrusion friction, and the assembling extruding force of O-shaped cushion rubber, sponge limited block are simulated with the expansion extruding force of rubber pneumatic bag
Up-down stretch active force is reduced, while generates and equidistantly follows displacement, servomotor moves up and down, and enables rubber pneumatic bag really anti-
O-shaped cushion rubber breakage environment is reflected, eliminates damaged factor.
Description of the drawings
Fig. 1 is that the steering gear pressure safety valve of the utility model supports the structure diagram of guide sleeve reliability detecting device.
In figure：1st, valve body；2nd, test bracket；3rd, servomotor；4th, gas pressurized pumps；5th, rubber pneumatic bag；6th, sponge /V
Block；101st, spring cavity；201st, spiral stablizes spindle housing；202nd, motor fixing frame；301st, helical axis；302nd, spirally-guided set；
303rd, tube chamber is supplied；304th, fixed frame is sealed；305th, O-ring seal；401st, flexible rubber hose；402nd, gas folder is stopped；403rd, pressure gauge.
Specific embodiment
The characteristics of to make the utility model and advantage are clearer, are described with reference to specific embodiment.
As shown in Figure 1, a kind of steering gear pressure safety valve support guide sleeve reliability detecting device, including valve body 1, test branch
Frame 2, servomotor 3, gas pressurized pump 4, rubber pneumatic bag 5, sponge limited block 6, test bracket 2 are equipped with spiral and stablize spindle housing
201 and motor fixing frame 202, motor fixing frame 202 is equipped with servomotor 3, and spiral is stablized spindle housing 201 and led equipped with spiral
To set 301, the helical axis 301 of servomotor 3 is connected in spirally-guided set 301, and 301 end of helical axis is equipped with supply tube chamber
303 are equipped with rubber pneumatic bag 5 with sealing fixed frame 304, sealing fixed frame 304, and the flexible rubber hose 401 of gas pressurized pump 4 is connected to
It supplies on tube chamber 303, sealing fixed frame 304 is located in spring cavity 101, and sponge limited block 6, sponge limit are equipped in spring cavity 101
Position block 6 is located at 5 lower section of rubber pneumatic bag, and the contact surface for sealing fixed frame 304 and spring cavity 101 is equipped with O-ring seal 305, sealing
Fixed frame 304 is equipped with pressure gauge 403, and pressure gauge 403 connects rubber pneumatic bag 5.
In the present embodiment, the sponge limited block 6 is equipped with rubber coating, and the rubber coating thickness is 1mm ~ 2mm, described
The height of sponge limited block 6 is 0.1 times ~ 0.3 times of 101 depth of spring cavity, and sponge limited block 6 is to 5 inner wall of rubber pneumatic bag
Detection process generates the resistance of motion, and sponge limited block 6 has elastic force and sealing function, can be with when rubber pneumatic bag 5 moves up and down
Sponge limited block 6, which generates, equidistantly follows displacement, increases the frictional resistance of rubber pneumatic bag 5, can block unload during the motion
The outage of lotus reduces the upper and lower tensile force effect of rubber pneumatic bag 5, and the O-shaped cushion rubber in support guide sleeve is limited, upper and lower
Drawing force is weakened, predominantly breakage of the squeeze friction to O-shaped cushion rubber, while also can be to the expanding position of rubber pneumatic bag 5
It puts and is defined, more really reflect testing result, improve the reliability accuracy of detection.
In the present embodiment, the flexible rubber hose 401 is equipped with only gas folder 402, and the entrance of gas is blocked using only gas folder 402
Or discharge, for pressure stability in rubber pneumatic bag 5.
In use, valve body 1 is placed on test bracket 2, opening servomotor 3 makes sealing fixed frame 304 enter spring cavity
101, connection flexible rubber hose 401 and supply tube chamber 303, opening stop gas folder 402, open gas pressurized pump 4, make gas in rubber pneumatic bag
5 reach 1.1 ~ 1.3 atmospheric pressure, and rubber pneumatic bag 5 holds out against sponge limited block 6, and the squeezing action power of rubber pneumatic bag 5 is made to reach O-shaped
The theoretical extruding force scope generated after cushion rubber assembling, extruding force is excessive will to influence off-load, make rubber pneumatic bag 5 to spring cavity 101
Inner wall squeezes, and fills up 1/4 ~ 1/2 volume of inner cavity of spring cavity 101, servomotor 3 is made to be moved repeatedly in setting amplitude, with bullet
Extrusion friction occurs for spring chamber 101, while sponge limited block 6 is driven to generate and equidistantly follows displacement, and the extruding of rubber pneumatic bag 5 is made to rub
Environment is wiped as the extrusion friction environment after the assembling of O-shaped cushion rubber, rubber pneumatic bag 5 is taken out after completing to set displacement stroke, checks brokenly
Damage situation finds out damaged factor, and such as there are burr, rubber pneumatic bag 5, which cannot complete stroke detection, will damage, it is necessary to valve body 1
It carries out eliminating burr processing, setting value is damaged durable 2 ~ 3 times of O-shaped cushion rubber, eliminates the seal failure wind of spring cavity 101
The reliability of steering gear pressure safety valve is improved in danger.
In addition to the implementation, the utility model can also have other embodiment.It is all to use equivalent substitution or equivalent change
The technical solution to be formed is changed, is all fallen in the scope of protection of the utility model.
Claims (4)
1. a kind of steering gear pressure safety valve supports guide sleeve reliability detecting device, including valve body, test bracket, servomotor,
Gas pressurized pump, rubber pneumatic bag, sponge limited block, test bracket are equipped with spiral and stablize spindle housing and motor fixing frame, motor
Fixed frame is equipped with servomotor, and spiral stablizes spindle housing and is equipped with spirally-guided set, and the helical axis of servomotor is connected to spiral shell
It revolves in guide sleeve, helical axis end is equipped with supply tube chamber and sealing fixed frame, and sealing fixed frame is equipped with rubber pneumatic bag, and gas adds
The flexible rubber hose of press pump is connected on supply tube chamber, and sealing fixed frame is located in spring cavity, it is characterised in that：Sea is equipped in spring cavity
Continuous limited block, sponge limited block are located at below rubber pneumatic bag, and the contact surface for sealing fixed frame and spring cavity is equipped with O-ring seal,
It seals fixed frame and is equipped with pressure gauge, pressure gauge connection rubber pneumatic bag.
2. steering gear pressure safety valve according to claim 1 supports guide sleeve reliability detecting device, it is characterised in that：Institute
Sponge limited block is stated equipped with rubber coating, the rubber coating thickness is 1mm ~ 2mm.
3. steering gear pressure safety valve according to claim 2 supports guide sleeve reliability detecting device, it is characterised in that：Institute
The height for stating sponge limited block is 0.1 times ~ 0.3 times of the spring cavity depth.
4. steering gear pressure safety valve according to claim 1 supports guide sleeve reliability detecting device, it is characterised in that：Institute
It states flexible rubber hose and is equipped with only gas folder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721541363.1U CN207396036U (en) | 2017-11-17 | 2017-11-17 | A kind of steering gear pressure safety valve supports guide sleeve reliability detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721541363.1U CN207396036U (en) | 2017-11-17 | 2017-11-17 | A kind of steering gear pressure safety valve supports guide sleeve reliability detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207396036U true CN207396036U (en) | 2018-05-22 |
Family
ID=62323994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721541363.1U Active CN207396036U (en) | 2017-11-17 | 2017-11-17 | A kind of steering gear pressure safety valve supports guide sleeve reliability detecting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207396036U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112649189A (en) * | 2020-12-28 | 2021-04-13 | 西安精密机械研究所 | Capsule pressure detection device and detection method under full thunder state |
-
2017
- 2017-11-17 CN CN201721541363.1U patent/CN207396036U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112649189A (en) * | 2020-12-28 | 2021-04-13 | 西安精密机械研究所 | Capsule pressure detection device and detection method under full thunder state |
| CN112649189B (en) * | 2020-12-28 | 2023-02-21 | 西安精密机械研究所 | Capsule pressure detection device and detection method under full lightning state |
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