CN207583859U - Rotary vane type steering gear static pressure oil sealing - Google Patents
Rotary vane type steering gear static pressure oil sealing Download PDFInfo
- Publication number
- CN207583859U CN207583859U CN201720547562.7U CN201720547562U CN207583859U CN 207583859 U CN207583859 U CN 207583859U CN 201720547562 U CN201720547562 U CN 201720547562U CN 207583859 U CN207583859 U CN 207583859U
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- static pressure
- oil
- sealing
- steering gear
- oil sealing
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Abstract
The utility model discloses a kind of rotary vane type steering gear static pressure oil sealing；The technical issues of solution：The sealing means that current rotary-vane steering gear lower end sliding bearing mentioned in the background art axially generally uses are deposited replaces the technical issues of difficult, maintenance cycle is long and costly upon wear.The technical solution of use：Including hydraulic system, movable vane, cylinder body and gland, sliding bearing is set between the lower end of movable vane and cylinder body, O-ring seal is set between gland and cylinder body for a kind of rotary vane type steering gear static pressure oil sealing；Further include static pressure oil sealing and hydraulic oil oil inlet.Advantage：This rotary vane type steering gear static pressure oil sealing is replaced traditional mechanical pressure mode using hydraulic pressure, the sealing face damage of oil sealing is can effectively avoid using the overload protection performance of hydraulic pressure；Realization dynamic is can adjust using hydraulic pressure to compensate, improve reliability simultaneously.
Description
Technical field
The utility model is related to a kind of rotary vane type steering gear static pressure oil sealings, belong to mechanically-sealing apparatus, are a kind of oil seals.
Applied to the axial seal at the sliding bearing of rotary vane type steering gear lower end, hydraulic pressure is provided using the hydraulic system of rotary vane type steering gear itself
Oil is not required to additional adding set.Adhesive force between sealing element can realize the variation with load and adjust automatically, utilizes simultaneously
The resilient protection of hydraulic system itself, can effectively avoid mechanical damage.
Background technology
Steering engine is that ship realizes steering, the power plant for controlling course.Rotary vane type steering gear as the type in steering engine,
It can be directly installed together with rudderpost, rudder is driven to make reciprocally swinging, be not required to install other auxiliary such as tiller again and come about mechanism, thus
If the oil liquid pressure that works is constant, output rudder moment is certain value, unrelated with angle of helm.Its overall structure such as Fig. 1 and 3,
By stator blade and sealing strip, movable vane and sealing strip, upper cylinder cover and sealing ring, cylinder body medial surface, cylinder body bottom surface and sealing ring, separate
Into 6 working chambers A1, B1, A2, B2, A3, B3, every 3 alternate annular seal space connections are 1 working chamber, i.e. A1, A2, A3 connects
Logical, B1, B2, B3 connection in this way under the control of hydraulic system, can realize that rotor directly drives rudderpost to make in forward and reverse direction
The function of steering is realized in rotary motion.Rotary vane type steering gear has many advantages, such as to be easily integrated, facilitates installation, angle range wide, but adds
The requirement of the work accuracy of manufacture is high, and sealing technique is complex.
It is the sealing means that current rotary-vane steering gear lower end sliding bearing axially generally uses as marked 9 in Fig. 1 and 3, i.e.,
Standard oil sealing or stuffing-box.Due to being fixed on the bottom plate of cabin after rotary vane type steering gear and rudderpost assembling, if using standard oil
There is sealing reduction or mechanical damage in use in envelope, it is necessary to and replacement operation could be carried out into docking by suspending, and maintenance cycle is long,
It is costly.If using packing box seal, in the case of normal wear or burst damage, preset by adjusting end cap pressing force
Mode, compensate, can not often be realized due to working space is narrow.Therefore, both sealing means, reliability and durability
It is not satisfactory, once being leaked due to sealing reduces or fails, the normal use or even navigation safety of steering engine certainly will be influenced.
Invention content
Technical problem to be solved in the utility model is：It slides current rotary-vane steering gear lower end mentioned in the background art
The sealing means that dynamic bearing axially generally uses are deposited replaces the technical issues of difficult, maintenance cycle is long and costly upon wear.
The design philosophy of the utility model is carried for current rotary vane type steering gear lower end sliding bearing axial seal deficiency
Go out.A kind of Hydrodynamic pressure type sealing is proposed, applied to the axial seal at the sliding bearing of rotary vane type steering gear lower end.Design
The channel gasket of " C " type is mounted on movable vane output shaft, and rotary vane type steering gear cylinder body lower end is fixed on, while form close by gland
Closed chamber, closed chamber are connect by pipeline with external hydraulic oil phase, cause sealing ring and axis using the pressure of hydraulic oil during work
Contact surface is tightly bonded, and realizes axial seal.Pressing force can realize that dynamic adjusts by adjusting the oil pressure of hydraulic oil.Rotary blade type rudder
Machine is hydraulic pressure executive item in itself, and therefore, introducing hydraulic oil is convenient and efficient, is not required to additional adding set.
The purpose of this utility model is the further axial seal effect for promoting rotary-vane steering gear lower end sliding bearing, avoids machine
Tool damages, and realization dynamic can be facilitated to compensate, improve reliability.In addition, optimizing the material of sealing ring by non-standard de-sign, increase mill
The thickness at position is damaged, durability is further improved, extends the overhaul life of sealing device.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of rotary vane type steering gear static pressure oil sealing, including hydraulic system, movable vane, cylinder body and gland, in the lower end of movable vane and cylinder
Sliding bearing between body is set, O-ring seal is set between gland and cylinder body；Further include static pressure oil sealing and hydraulic oil oil inlet
Mouthful,
For installing the oil seal groove of static pressure oil sealing, static pressure oil sealing is cut for indent setting on the face contacted on gland with cylinder body
Face is in " C " font, i.e., there is " C " font notch in the outer surface of static pressure oil sealing；Static pressure oil sealing is mounted in oil seal groove and static pressure
Oil sealing " C " fonts notch is towards hydraulic oil oil inlet；Oilhole on the side wall of gland is set and oilhole connects static pressure oil sealing
" C " font notch, hydraulic oil oil inlet are mounted in oilhole；Setting is used for the O-ring slot of mounting O-shaped sealing ring on gland；
Ensure the interference volume of 0.08-0.1mm between the depth d5 of oil seal groove and the axial dimension d4 of static pressure oil sealing；
Hydraulic system in hydraulic oil oil inlet connection rotary vane type steering gear.
The rotary vane type steering gear referred in the utility model technology be routine techniques product of the prior art, rotary blade type rudder
There is the hydraulic system of itself in machine, this hydraulic system is also routine techniques.
Static pressure oil sealing material selection Polyurethane rubber composite material in the utility model technology, the internal diameter d3 of static pressure oil sealing
Size reference standard oil sealing shafting choose, the axial dimension d4 of static pressure oil sealing is according to required seal pressure and rotary vane type steering gear liquid
Pressure system can provide oil pressure carry out calculate determine；Specific computational methods are carried out using convenient technical process of the prior art.
When gland in the utility model technology assembles, the bilateral of gland and static pressure oil sealing ensures the interference of 0.08-0.1MM
Amount ensures the interference volume of 0.08-0.1mm between the i.e. depth d5 of oil seal groove and the axial dimension d4 of static pressure oil sealing；Gland with
Design assembling O-ring is needed between cylinder body, material is thus formed the closed works that oil sealing, gland, cylinder body and movable vane output shaft are formed
Make chamber, rotary blade type steering gear hydraulic system is connect by the hydraulic oil oil inlet on gland, by adjusting oil pressure, realize hydrostatic seal.
This programme changes original mode for fitting closely sealing surface by mechanical pressure, relies instead upon the oil of hydraulic system
Pressure has resilient protection performance, when encountering excessive pressing force or foreign matter, the overload protection of hydraulic oil as pressing force, hydraulic oil
Performance can avoid sealing ring surface damage；Secondly the pressure of hydraulic oil can make adjustment as needed, convenient and efficient；In addition, liquid
Pressure oil is derived from the hydraulic system of steering engine itself, and there is no need to increase extras.
Improvement to technical solutions of the utility model, hydraulic oil oil inlet assembling check valve are followed by rotary-vane steering gear hydraulic pressure system
Between pressure control valve outlet and directional control valve in system.
Improvement to technical solutions of the utility model, hydraulic oil oil inlet connect pressure-control valve after assembling check valve, so
It is followed by the port of export in rotary-vane steering gear hydraulic system pump.
The operation principle of this practicality rotary vane type steering gear static pressure oil sealing is：
In technical solutions of the utility model, the closed work that is made of static pressure oil sealing, gland, cylinder body and movable vane output shaft
Chamber, the oil outlet of the hydraulic oil oil inlet connection check valve on gland, oil inlet and the rotary vane type steering gear hydraulic pressure of check valve
System is connected, under the oil pressure effect of hydraulic system so that the output shaft contact surface of hydrostatic seal part and rotary vane type steering gear is tight
Closely connected conjunction, so as to achieve the effect that mechanical seal.There are two types of the modes of pressure adjustment, and a kind of is the pressure for following steering engine working chamber
(case 1), another kind is to set individual pressure-control valve (case 2), when steering gear hydraulic system is stopped, in check valve
Under effect so that remain to keep certain pressure in static pressure closed chamber.In addition, when encountering excessive pressing force or foreign matter, hydraulic pressure
The overload protection performance of oil can avoid sealing ring surface damage.
Compared with prior art, advantage is the utility model：
1st, the rotary vane type steering gear static pressure oil sealing of the utility model replaces traditional mechanical pressure mode using hydraulic pressure,
The sealing face damage of oil sealing is can effectively avoid using the overload protection performance of hydraulic pressure；Realization to be can adjust using hydraulic pressure dynamic simultaneously
State compensates, and improves reliability.
2nd, the rotary vane type steering gear static pressure oil sealing of the utility model, passes through the static pressure oil sealing of non-standard de-sign, preferable sealing ring
Material, autonomous Design increase abrading section thickness, further improve durability, extend the overhaul life of sealing device.This
Outside, hydraulic oil is derived from the hydraulic system of steering engine itself, there is no need to increase extras, and takes conveniently.
Description of the drawings
Fig. 1 is rotary blade type rudder dynamic and static pressure oil sealing overall structure of the prior art.
Fig. 2 be in Fig. 1 I at enlarged view.
Fig. 3 is the A direction views of Fig. 1.
Fig. 4 is the rotary blade type rudder dynamic and static pressure oil sealing overall structure of the utility model.
Fig. 5 be in Fig. 4 II at enlarged view.
Fig. 6 is the structure diagram of static pressure oil sealing.
Fig. 7 be in Fig. 6 III at enlarged view.
Fig. 8 is the sectional view of gland.
Fig. 9 is the rotary blade type rudder dynamic and static pressure oil sealing oil pressure joint control control principle of the utility model.
Figure 10 is the independent control principle of rotary blade type rudder dynamic and static pressure oil sealing oil pressure of the utility model.
Specific embodiment
Technical solutions of the utility model are described in detail below, but the scope of protection of the utility model is not limited to
The embodiment.
To make the content of the utility model more obvious understandable, done below in conjunction with attached drawing 1-10 and specific embodiment into one
The description of step.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only explaining this
Utility model is not used to limit the utility model.
As shown in Figures 4 and 5, it is the rotary vane type steering gear static pressure oil sealing of the present embodiment, the original dependence mechanical pressure of change makes close
The mode that cover fits closely relies instead upon the oil pressure of hydraulic system as pressing force, and hydraulic oil has resilient protection performance, when
When encountering excessive pressing force or foreign matter, the overload protection performance of hydraulic oil can avoid sealing ring surface damage；Next hydraulic oil
Pressure can make adjustment as needed, convenient and efficient；In addition, hydraulic oil is derived from the hydraulic system of steering engine itself, there is no need to increase
Add extras.
Rotary vane type steering gear, including upper cylinder cover 1, upper cylinder cover sealing ring 2, movable vane sealing strip 3, movable vane 4, cylinder body sealing bottom surface circle
5, cylinder body 6, sliding bearing 7, O-ring 8, static pressure oil sealing 8A, hydraulic oil oil inlet 8B, stator blade sealing strip 11 and stator blade 12.
Rotary vane type steering gear passes through stator blade and sealing strip, movable vane and sealing strip, upper cylinder cover and sealing ring, cylinder body medial surface, cylinder
Body bottom surface and sealing ring are separated into 6 working chambers A1, B1, A2, B2, A3, B3, and every 3 alternate annular seal space connections are 1 work
Make chamber, i.e. A1, A2, A3 is connected, and B1, B2, B3 connection in this way under the control of hydraulic system, can realize that rotor directly drives
Rudderpost rotates in forward and reverse direction, realizes the function of steering.Rotary vane type steering gear, which has, to be easily integrated, facilitates installation, turns
The advantages that angular region is wide, but required precision height is fabricated, sealing technique is complex.
This rotary vane type steering gear static pressure oil sealing, including hydraulic system 21, movable vane 4, cylinder body 6 and gland, the lower end of movable vane 4 with
Sliding bearing 7 between cylinder body 6 is set, O-ring seal 8 is set between gland and cylinder body 6；Further include static pressure oil sealing 8A and hydraulic pressure
Oily oil inlet 8B, indent setting is for installing the oil seal groove of static pressure oil sealing 8A, static pressure oil on the face contacted on gland with cylinder body 6
The section of 8A is sealed in " C " font, i.e., there is " C " font notch in the outer surface of static pressure oil sealing 8A；Static pressure oil sealing 8A is mounted on oil
In sealing groove and static pressure oil sealing 8A " C " fonts notch is towards hydraulic oil oil inlet 8B；On the side wall of gland set oilhole 21 and
Oilhole 21 connects " C " font notch of static pressure oil sealing 8A, and hydraulic oil oil inlet 8B is mounted in oilhole 21；It is set on gland
For the O-ring slot 20 of mounting O-shaped sealing ring 8；Ensure between the axial dimension d4 of the depth d5 and static pressure oil sealing 8A of oil seal groove
The interference volume of 0.08-0.1mm；Hydraulic system in hydraulic oil oil inlet 8B connection rotary vane type steering gears.
Case 1：
As shown in Figure 9, hydraulic oil oil inlet 8B assembles check valve and is followed by controlling in 21 pressure of rotary-vane steering gear hydraulic system
Between valve outlet and directional control valve, the oil pressure of static pressure oil sealing will follow rotary-vane steering gear workload pressure during work, and load increases
Added-time, the pressure of hydrostatic seal also accordingly increase, and vice versa, and dynamic compensation effect is good.During shutdown, because oil inlet front end is equipped with
Check valve can keep the seal pressure of static pressure oil sealing, remain sealing effect.Attached drawing 9 marked 21 for rotary-vane steering gear
Hydraulic system, 22 be rotary-vane steering gear executing agency, and 23 be lower end sliding bearing static pressure oil-sealing arrangement.
Case 2：
As shown in Figure 10, hydraulic oil oil inlet 8B connects pressure-control valve after assembling check valve, is then connected on rotating vane rudder
The port of export of machine hydraulic system pump, under this working method, the oil pressure of static pressure oil sealing can individually be set, but one be set after will
It immobilizes, except non-artificial adjustment, advantage is can be with it is observed that the proper pressure of setting, and shortcoming is can not be according to turning
The variation of leaf steering engine workload and adjust automatically.During shutdown, equally because hydraulic fluid port front end is equipped with check valve, static pressure can be kept oily
The seal pressure of envelope.Attached drawing 10 marked 21 for rotary-vane steering gear hydraulic system, 22 be rotary-vane steering gear executing agency, under 23 are
Hold sliding bearing static pressure oil-sealing arrangement.
It is same as the prior art or the prior art can be used realized that the utility model is not directed to part.
As described above, although the utility model has been represented and described with reference to specific preferred embodiment, it must not
It is construed to the limitation to the utility model itself.In the spirit and scope for not departing from the utility model that appended claims define
Under the premise of, it can various changes can be made in the form and details to it.
Claims (3)
1. a kind of rotary vane type steering gear static pressure oil sealing, including hydraulic system, movable vane (4), cylinder body (6) and gland, under movable vane (4)
Setting sliding bearing (7) between end and cylinder body (6), sets O-ring seal (8) between gland and cylinder body (6)；Its feature exists
In, static pressure oil sealing (8A) and hydraulic oil oil inlet (8B) are further included,
Indent sets the oil seal groove for installing static pressure oil sealing (8A), static pressure oil sealing on the face contacted on gland with cylinder body (6)
The section of (8A) is in " C " font, i.e., there is " C " font notch in the outer surface of static pressure oil sealing (8A)；Static pressure oil sealing (8A) is installed
In oil seal groove and " C " the font notch of static pressure oil sealing (8A) is towards hydraulic oil oil inlet (8B)；It is set on the side wall of gland
" C " font notch of oilhole (21) and oilhole (21) connection static pressure oil sealing (8A), hydraulic oil oil inlet (8B) is mounted on oilhole
(21) in；Setting is used for the O-ring slot (20) of mounting O-shaped sealing ring (8) on gland；
Ensure the interference volume of 0.08-0.1mm between the depth d5 of oil seal groove and the axial dimension d4 of static pressure oil sealing (8A)；
Hydraulic system in hydraulic oil oil inlet (8B) connection rotary vane type steering gear.
2. rotary vane type steering gear static pressure oil sealing as described in claim 1, which is characterized in that hydraulic oil oil inlet (8B) assembling is unidirectional
Valve is followed by between the pressure control valve outlet and directional control valve in rotary-vane steering gear hydraulic system.
3. rotary vane type steering gear static pressure oil sealing as described in claim 1, which is characterized in that hydraulic oil oil inlet (8B) assembling is unidirectional
Pressure-control valve is connected after valve, is then connected on the port of export of rotary-vane steering gear hydraulic system pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720547562.7U CN207583859U (en) | 2017-05-17 | 2017-05-17 | Rotary vane type steering gear static pressure oil sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720547562.7U CN207583859U (en) | 2017-05-17 | 2017-05-17 | Rotary vane type steering gear static pressure oil sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207583859U true CN207583859U (en) | 2018-07-06 |
Family
ID=62718245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720547562.7U Expired - Fee Related CN207583859U (en) | 2017-05-17 | 2017-05-17 | Rotary vane type steering gear static pressure oil sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207583859U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117662621A (en) * | 2024-02-01 | 2024-03-08 | 哈尔滨银河电力设备有限公司 | Thermal power bearing bush high-pressure oil top shaft unidirectional transmission device and use method thereof |
-
2017
- 2017-05-17 CN CN201720547562.7U patent/CN207583859U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117662621A (en) * | 2024-02-01 | 2024-03-08 | 哈尔滨银河电力设备有限公司 | Thermal power bearing bush high-pressure oil top shaft unidirectional transmission device and use method thereof |
| CN117662621B (en) * | 2024-02-01 | 2024-04-30 | 哈尔滨银河电力设备有限公司 | Thermal power bearing bush high-pressure oil top shaft unidirectional transmission device and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180706 Termination date: 20210517 |
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| CF01 | Termination of patent right due to non-payment of annual fee |