CN209190186U - Pressure head of valve oil seal device - Google Patents
Pressure head of valve oil seal device Download PDFInfo
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- CN209190186U CN209190186U CN201821531270.5U CN201821531270U CN209190186U CN 209190186 U CN209190186 U CN 209190186U CN 201821531270 U CN201821531270 U CN 201821531270U CN 209190186 U CN209190186 U CN 209190186U
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- pressure head
- oil seal
- valve oil
- seal device
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Abstract
The utility model discloses a kind of pressure head of valve oil seal device, including pressure head, fixed block, connecting bushing, mobile shaft and fixed hub, the internal slide of pressure head is connected with mandrel, one end of mandrel is fixed with piston head, fixed block is internally provided with ventilation chamber, and connecting bushing is slidably connected with mobile shaft, and the inside of connecting bushing is fixed with pressure sensor, mobile shaft is fixed with fixed hub, is provided with spring between the external connection axle sleeve and fixed hub of mobile shaft.The utility model pushes piston head to push by ventilation chamber air inlet, gas source, so that mandrel drives valve oil seal to push.Pilot hole in the utility model pressure head play the guiding role to the movement of mandrel, valve oil seal can be accurately fixed on valve guide bushing after mandrel and valve guide bushing are coaxial, pressure head of valve oil seal device accurate positioning described in the utility model, the valve oil seal sealing effect after installation are good.
Description
Technical field
The utility model belongs to engine cylinder cap air valve conduit seal mounting technology field, and in particular to a kind of valve oil
Seal indenter device.
Background technique
Valve oil seal is used for the sealing of engine cylinder cap air valve conduit, can prevent machine oil from entering air inlet-outlet pipe, prevent vapour
The mixed gas and discharge exhaust gas leakage of oil and air, prevent engine motor oil from entering combustion chamber, valve oil seal is needed in height
Temperature is lower to be in contact with gasoline and machine oil, and assembling quality directly affects the performance of engine complete machine.It needs to guarantee valve after assembly
The centre bore of oil sealing and valve guide bushing are coaxial, and valve oil seal and engine valve oil seal bracket compress.
Pressure head of valve oil seal device is for being pressed valve oil seal.Existing valve oil seal device and without guiding
It is difficult to ensure that the two is coaxial fixed in mechanism, valve oil seal and valve guide bushing installation process, is pressed low precision, therefore after installation
Valve oil seal sealing effect it is bad；In addition, when the pressure head in existing pressure head of valve oil seal device pressurizes to valve oil seal, pressure
Uncontrollable, during the depression process, pressure head is easy to damage workpiece surface.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of pressure head of valve oil seal devices, solve existing skill
The technical problem that the delta pressure accuracy of pressure head of valve oil seal device is poor in art, pressure is uncontrollable.
In order to solve the above technical problems, the technical solution adopted in the utility model: a kind of pressure head of valve oil seal device, it is special
Sign is: fixing, presses with fixed block including pressure head, fixed block, connecting bushing, mobile shaft and fixed hub, the pressure head
The internal slide of head is connected with mandrel, and one end of the mandrel is fixed with piston head, and the fixed block is fixed with connecting bushing, Gu
The outside for determining block is provided with air inlet pipe and escape pipe, and fixed block is internally provided with ventilation chamber, and the piston head is located at logical
In gas chamber, the connecting bushing is slidably connected with mobile shaft, and the inside of connecting bushing is fixed with pressure sensor, far from even
Mobile shaft one end of spindle set is fixed with fixed hub, positioned at the outside connecting bushing and fixed hub of mobile shaft
Between be provided with spring.
Preferably, valve oil seal mounting groove is offered inside one end of the pressure head, pressure head is internally provided with pilot hole,
The pilot hole is connected to valve oil seal mounting groove.
Preferably, mounting hole, the peace are radially offered positioned at pressure head described in the connectivity part of pilot hole and valve oil seal
Dress is fixed with fibre optical sensor in hole.
Preferably, be additionally provided with sealing axle sleeve between the pressure head and fixed block, the sealing axle sleeve include guiding axis with
And the flange positioned at guiding axis one end, one end and the pressure head of the guiding axis are fixed, the other end of guiding axis extends to fixed block
Venting cavity room in, the flange is fixed with fixed block.
Preferably, the junction of the flange and fixed block coats sealant.
Preferably, the fixed block includes fixed part and ventilating part, and the fixed part extends to the inside of connecting bushing,
And fixed part is fixed with connecting bushing by radial pin shaft.
Preferably, one end of the connecting bushing far from fixed block is fixed with link block, and the link block offers axis
Rod through-hole enters inside connecting bushing after one end warp beam rod through-hole of the mobile shaft.
Preferably, the top of the link block and the bottom of fixed hub are provided with cushion block, and the spring is supported with cushion block
It connects.
Preferably, the fixed hub is fixed with mobile shaft by split pin, and nut is provided with above fixed hub,
The nut is screwed with mobile shaft.
The utility model has the beneficial effects that the utility model discloses a kind of pressure head of valve oil seal device, including pressure head, fixation
Block, connecting bushing, mobile shaft and fixed hub, the internal slide of pressure head are connected with mandrel, and one end of mandrel is fixed with work
Chock plug, fixed block are internally provided with ventilation chamber, and connecting bushing is slidably connected with mobile shaft, and the inside of connecting bushing is fixed
Have a pressure sensor, mobile shaft is fixed with fixed hub, positioned at the external connection axle sleeve and fixed hub for moving shaft it
Between be provided with spring.The utility model is by ventilation chamber air inlet, and gas source pushes piston head to push, so that mandrel band is taken offence
Door oil sealing pushes.Pilot hole in the utility model pressure head play the guiding role to the movement of mandrel, and mandrel is coaxial with valve guide bushing
After valve oil seal can be accurately fixed on valve guide bushing, pressure head of valve oil seal device described in the utility model positioning is quasi-
Really, the valve oil seal sealing effect after installation is good；
In addition, pressure head of valve oil seal device described in the utility model, valve oil seal device touch workpiece to be sealed
Afterwards, stopped by workpiece, spring is compressed, and mobile shaft is relative to connecting bushing slide downward, until touching pressure sensor, pressure
Force snesor shows pressure head of valve oil seal device to the pressure of workpiece indirectly, this kind of device can fill to avoid because of pressure head of valve oil seal
It sets excessive to workpiece pressure and causes workpiece surface impaired.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of pressure head of valve oil seal device；
Fig. 2 is the structural schematic diagram of another angle of pressure head of valve oil seal device；
Fig. 3 is the partial sectional view of pressure head of valve oil seal device；
Appended drawing reference in figure, 1- pressure head, 1.1- valve oil seal mounting groove, 1.2- pilot hole, 1.3- protrusion, 1.4- installation
Hole；2- sealing axle sleeve, 2.1- guiding axis, 2.1.1- clamping groove, 2.2- flange；3- fixed block, 3.1- fixed part, 3.2- ventilation
Portion, 3.2.1- ventilation chamber；4- connecting bushing；5- moves shaft；6- fixed hub；7- holding screw；8- gasket；9- pin shaft；
10- shaft block ring；11- air inlet pipe；12- escape pipe；13- piston head；14- link block；15- pressure sensor；16- split pin；
17- spring；18- cushion block；19- mounting blocks；20- mandrel；21- valve oil seal；22- nut.
Specific embodiment
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Embodiment 1:
A kind of pressure head of valve oil seal device, as shown in Figure 1-3, include pressure head 1, sealing axle sleeve 2, fixed block 3, connecting bushing
4, mobile shaft 5 and fixed hub 6.Wherein, valve oil seal installation is offered inside 1 one end of pressure head of valve oil seal
Slot 1.1, the inside of pressure head 1 axially offer pilot hole 1.2, and pilot hole 1.2 is connected to valve oil seal mounting groove 1.1.Far from gas
1 one end of pressure head of door oil sealing includes a protrusion 1.3.Sealing axle sleeve 2 is including guiding axis 2.1 and positioned at the convex of guiding axis one end
Edge 2.2.The guiding axis one end connecting with pressure head offers clamping groove 2.1.1.The card of protrusion 1.3 and sealing axle sleeve in pressure head
Access slot 2.1.1 matching connection, and it is fixed by holding screw 7.For the contact pressure dispersed between pressure head 1 and sealing axle sleeve 2
Power in the present embodiment, is provided with gasket 8 in the junction of pressure head 1 and sealing axle sleeve 2.
Fixed block 3 includes fixed part 3.1 and ventilating part 3.2, and fixed part 3.1 and connecting bushing 4 are fixed.The present embodiment
In, fixed part 3.1 extends to the inside of connecting bushing 4, and fixed part 3.1 and connecting bushing 4 pass through radial pin shaft 9 and fix.For
It avoids pin shaft 9 that axial float occurs, is provided with shaft block ring 10 on pin shaft 9.The outside of ventilating part 3.2 is provided with air inlet pipe 11
And escape pipe 12, ventilating part 3.2 are internally provided with ventilation chamber 3.2.1.Gas source enters ventilation chamber from air inlet pipe, or
The gas for chamber interior of ventilating is discharged from escape pipe.One end of the guiding axis 2.1 of sealing axle sleeve extends to the venting cavity of fixed part
In the 3.2.1 of room.In the present embodiment, the outer dia of the guiding axis of ventilation chamber interior and the inside diameter of ventilation chamber are extended to
It is equal, i.e., realize that sealing is cooperatively connected between guiding axis and fixed part.Flange 2.2 and the bottom of fixed part 3.1 are fixed.In order to mention
The junction of leakproofness between high flange and fixed block, flange 2.2 and fixed part 3.1 is coated with sealant.Pressure head 1 and close
The internal slide of envelope axle sleeve 2 is connected with mandrel 20.One end of mandrel 20 is pyramidal structure, and the mandrel of pyramidal structure facilitates insertion into gas
Door oil sealing.The other end of mandrel 20 is fixed with piston head 13.Piston head 13 is located in the ventilation chamber 3.2.1 of fixed part.When logical
Inside gas chamber after air inlet, gas source pushes piston head mobile to outside.The tapered end of mandrel is inserted into valve oil seal 21, mandrel to
Valve oil seal and valve guide bushing to be sealed are fixed after outer movement；After chamber interior of ventilating is vented, piston head is internally moved
Dynamic, mandrel is retracted into inside pressure head.
Connecting bushing 4 is slidably connected with mobile shaft 5.In the present embodiment, one end of the connecting bushing far from fixed block is solid
Surely there is link block 14, shaft through-hole is offered among link block 14.Enter connecting shaft after one end warp beam rod through-hole of mobile shaft 5
Inside set 4.Inside positioned at the axial position connecting bushing of mobile shaft is fixed with pressure sensor 15.When mobile shaft is to even
After spindle covers internal slide, the end of mobile shaft and pressure sensor contacts, and pressure is applied to pressure sensor.Far from even
5 one end of mobile shaft of spindle set and fixed hub 6 are fixed.Specifically, fixed hub 6 and mobile shaft 5 pass through split pin 16
It is fixed.In order to avoid play occurs in the axial direction for fixed hub, the top of fixed hub 6 is threaded with nut 22.Nut with
And split pin locks the position of the axial direction of fixed hub and circumferencial direction.It is moved between connecting bushing 4 and fixed hub 6
The outside of moving axis bar 5 is provided with spring 17.In the present embodiment, the top of link block 14 and the bottom of fixed hub 6 are provided with
Cushion block 18, spring 17 are abutted with cushion block 18.After pressure head is touched to workpiece to be sealed, pressure head causes spring quilt after by ambient pressure
Compression, relatively, one end of mobile shaft extend to the inside of connecting bushing, and and pressure sensor contacts, pressure sensor
React real-time pressure.This kind of structure design can cause workpiece surface to avoid because pressure head of valve oil seal device is excessive to workpiece pressure
It is impaired.
In order to determine whether mandrel starts to work automatically, i.e., whether mandrel drives inside valve oil seal insertion valve guide bushing.
In the present embodiment, the connectivity part pressure head 1 positioned at pilot hole 1.2 and valve oil seal mounting groove 1.1 radially offers mounting hole
1.4, mounting blocks 19 are fixed in mounting hole 1.4, and mounting blocks 19 are fixedly installed with fibre optical sensor and amplifier.Fibre Optical Sensor
It is electrically connected after device connection amplifier with external controller.When mandrel does not move, the optical signal that fibre optical sensor issues is being pressed
It is connected in the pilot hole of head, which is transferred to controller after amplifying by amplifier, controller determines that mandrel is not started to work；
When core axially outer is mobile, the optical signal that fibre optical sensor issues stops mandrel, which passes after being amplified by amplifier
It is handed to controller, controller determines that mandrel is started to work.And then subsequent action is controlled by controller and is carried out.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (9)
1. a kind of pressure head of valve oil seal device, it is characterised in that: including pressure head, fixed block, connecting bushing, mobile shaft and
Fixed hub, the pressure head are fixed with fixed block, and the internal slide of pressure head is connected with mandrel, and one end of the mandrel is fixed with work
Chock plug, the fixed block are fixed with connecting bushing, and the outside of fixed block is provided with air inlet pipe and escape pipe, the inside of fixed block
It is provided with ventilation chamber, the piston head is located in venting cavity room, and the connecting bushing is slidably connected with mobile shaft, connecting shaft
The inside of set is fixed with pressure sensor, and mobile shaft one end far from connecting bushing is fixed with fixed hub, is located at shifting axle
Spring is provided between the outside of the bar connecting bushing and fixed hub.
2. a kind of pressure head of valve oil seal device according to claim 1, it is characterised in that: opened up inside one end of the pressure head
There is valve oil seal mounting groove, pressure head is internally provided with pilot hole, and the pilot hole is connected to valve oil seal mounting groove.
3. a kind of pressure head of valve oil seal device according to claim 2, it is characterised in that: positioned at pilot hole and valve oil seal
Pressure head described in connectivity part radially offers mounting hole, is fixed with fibre optical sensor in the mounting hole.
4. a kind of pressure head of valve oil seal device according to claim 1, it is characterised in that: between the pressure head and fixed block also
It is provided with sealing axle sleeve, the sealing axle sleeve includes guiding axis and the flange positioned at guiding axis one end, and the one of the guiding axis
End is fixed with pressure head, and the other end of guiding axis extends in the venting cavity room of fixed block, and the flange is fixed with fixed block.
5. a kind of pressure head of valve oil seal device according to claim 4, it is characterised in that: the connection of the flange and fixed block
Place's coating sealant.
6. a kind of pressure head of valve oil seal device according to claim 1, it is characterised in that: the fixed block include fixed part with
And ventilating part, the fixed part extends to the inside of connecting bushing, and fixed part is fixed with connecting bushing by radial pin shaft.
7. a kind of pressure head of valve oil seal device according to claim 1, it is characterised in that: the connecting shaft far from fixed block
One end of set is fixed with link block, and the link block offers shaft through-hole, after one end warp beam rod through-hole of the mobile shaft
Into inside connecting bushing.
8. a kind of pressure head of valve oil seal device according to claim 7, it is characterised in that: the top of the link block and solid
The bottom of dead axle set is provided with cushion block, and the spring is abutted with cushion block.
9. a kind of pressure head of valve oil seal device according to claim 1, it is characterised in that: the fixed hub and mobile shaft
It is fixed by split pin, nut is provided with above fixed hub, the nut is screwed with mobile shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821531270.5U CN209190186U (en) | 2018-09-18 | 2018-09-18 | Pressure head of valve oil seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821531270.5U CN209190186U (en) | 2018-09-18 | 2018-09-18 | Pressure head of valve oil seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209190186U true CN209190186U (en) | 2019-08-02 |
Family
ID=67406256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821531270.5U Active CN209190186U (en) | 2018-09-18 | 2018-09-18 | Pressure head of valve oil seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209190186U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175956A (en) * | 2018-09-18 | 2019-01-11 | 上海天永智能装备股份有限公司 | Pressure head of valve oil seal device |
| CN110614497A (en) * | 2019-09-18 | 2019-12-27 | 天永机械电子（太仓）有限公司 | Automatic press fitting and pressing depth measuring device for valve oil seal |
| CN113952590A (en) * | 2020-10-30 | 2022-01-21 | 昕迪精密机械（东莞）有限公司 | Catheter airway movement assembly |
-
2018
- 2018-09-18 CN CN201821531270.5U patent/CN209190186U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175956A (en) * | 2018-09-18 | 2019-01-11 | 上海天永智能装备股份有限公司 | Pressure head of valve oil seal device |
| CN109175956B (en) * | 2018-09-18 | 2024-04-12 | 上海天永智能装备股份有限公司 | Valve oil seal pressure head device |
| CN110614497A (en) * | 2019-09-18 | 2019-12-27 | 天永机械电子（太仓）有限公司 | Automatic press fitting and pressing depth measuring device for valve oil seal |
| CN113952590A (en) * | 2020-10-30 | 2022-01-21 | 昕迪精密机械（东莞）有限公司 | Catheter airway movement assembly |
| CN113952590B (en) * | 2020-10-30 | 2023-10-20 | 昕迪智能装备(东莞)有限公司 | Catheter ventilation movement assembly |
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