CN208918954U - A kind of spiral swing hydranlic pressure jar - Google Patents
A kind of spiral swing hydranlic pressure jar Download PDFInfo
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- CN208918954U CN208918954U CN201821444491.9U CN201821444491U CN208918954U CN 208918954 U CN208918954 U CN 208918954U CN 201821444491 U CN201821444491 U CN 201821444491U CN 208918954 U CN208918954 U CN 208918954U
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- cylinder body
- shaft
- stator vane
- cover
- intermediate blade
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Abstract
A kind of spiral swing hydranlic pressure jar, including cylinder body, cylinder body front end is equipped with front cover, rear end is equipped with rear cover, intermediate blade installation axle is installed in cylinder body, cylinder side wall is installed with oil inlet pipe and flowline, intermediate blade installation shaft rear end attaching has the rear end built-up shaft clamped with rear cover, the front end attaching of intermediate blade installation axle has the front end built-up shaft worn from front cover and be pierced by outward, the inboard wall of cylinder block is equipped with the fuel feed hole and oil outlet being connected to oil inlet pipe and flowline, rotor blade is installed in intermediate blade installation axle, inboard wall of cylinder block is installed with stator vane, the front end face of stator vane is contacted with the fitting of intermediate blade installation axle, the front end side of rotor blade is contacted with inboard wall of cylinder block fitting, cylinder body, front cover, rear cover, rotor blade and stator vane form two annular seal chambers.The utility model good airproof performance improves the stability of rotation, improves the reliability of movement of cylinder block, and reduces processing cost.
Description
Technical field
The utility model belongs to hydraulic-driven technical applications, purpose of utility model be to design it is a kind of compact-sized,
Favorable sealing property has the blade swing type hydraulic cylinder of lesser internal leakage relative to traditional wobble hydraulic cylinder.
Background technique
Vane type oscillating motor has the advantages that output torque is big, compact-sized, swing angle is big, in all kinds of engineering machines
Tool equipment, the fields such as communications and transportation, robot and various job that requires special skills equipment are widely applied.Vane type oscillating cylinder is main
Including two kinds of design forms of single blade and twayblade.The maximum of general single-vane actuator is delivered less than 300 °；Twayblade is swung
The hard-over of cylinder is less than 120 °.
Traditional vane type oscillating cylinder, sealed section is generally rectangular, and the sealing difficulty of blade is big, needs special designing
Rectangle combined labyrinth and carbon gland.Its existing leakage is primarily referred to as internal leakage.The internal leakage of vane type oscillating cylinder mainly includes 3
Point, it is the vane leakage of the sealing formation across blade periphery respectively, seals the diametric shoulder to be formed leakage across the shaft shoulder, and
The slot leakage of the corner of vane tip and runner sealing and the shaft shoulder sealing junction.Traditional vane type oscillating motor is logical
Seal groove often is set in the middle position of blade, combined type packing ring is placed in inside, to prevent vane leakage；In shaft shoulder position
Same setting combined type packing ring, to reduce shaft shoulder leakage；The rectangular seal on blade periphery is spliced by three sections of sealing strips,
Junction under pressure, or when there are relative motion in runner sealing and shaft shoulder sealing junction, will form slot leakage, difficult
To eliminate.
The country at present focuses mostly in theoretical research or the improvement of sealing means to the research of vane type oscillating motor, phase
The processing technology answered does not reach requirement yet, thus corresponding matured product emerges not yet, most of or dependence imported product.
Currently, such as " the non-linear leakage analyzing of vane hydraulic rotary actuator ", BJ University of Aeronautics & Astronautics's journal, 2014
In April in year, the design of similar semicircle blade oscillating cylinder is disclosed, but its outer dimension is still larger.The runner sealing of use
Form is the arc-shaped lip packing plate for being embedded in blade two sides, and manufacture is complicated, operating difficulties, it is desirable that good manufacturability, cost
It is high.Meanwhile shaft shoulder leakage does not improve research.
Some first document, " Improvement Design of Internal Configuration of Swung Hydraulic Cylinder ", hydraulics pneumatics and seals, 2007
6th phase, a kind of hydrostatic support blade oscillating cylinder, CN201721395360.1, a kind of water hydraulic single blade formula oscillating cylinder,
CN201610035551.0, vane type oscillating motor design in generally use rectangular paddle form, cooperate the combination of door frame shaped
The combined labyrinth and carbon gland of formula sealing structure and the shaft shoulder carries out the control of internal leakage；Meanwhile in the design of shape, there are diameters
It is larger, the not compact situation of space structure, it is difficult to there is the occasion of more limitation to answer installation space in joint of robot driving etc.
With.In addition, seal structure complex, internal leakage is also difficult to control, and as the pressure difference of high-low pressure chamber increases, internal leakage is also rapid
Increase, reduces the gross efficiency and service life of oscillating motor.Again, maintenance and repair difficulty, cost control etc.
It is all difficult to reach desired level.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of spiral swing hydranlic pressure jar, good airproof performance improves rotation
Stability, installation are more firm.
In order to solve the above-mentioned technical problem, the utility model takes following technical scheme:
A kind of spiral swing hydranlic pressure jar, including cylinder body, cylinder body front end is equipped with front cover, rear end is equipped with rear cover, is installed in cylinder body
Intermediate blade installation axle, cylinder side wall are installed with oil inlet pipe and flowline, and intermediate blade installation shaft rear end attaching has and rear cover card
The rear end built-up shaft of dress, the front end attaching of intermediate blade installation axle have the front end built-up shaft worn from front cover and be pierced by outward, the cylinder body
Inner wall is equipped with the fuel feed hole and oil outlet being connected to oil inlet pipe and flowline, is installed with rotor blade in intermediate blade installation axle,
Inboard wall of cylinder block is installed with stator vane, and the front end face of stator vane is contacted with the fitting of intermediate blade installation axle, rotor blade
Front end side is contacted with inboard wall of cylinder block fitting, and cylinder body, front cover, rear cover, rotor blade and stator vane form two annular sealings
Chamber.
The center of the front end face of the rotor blade is equipped with rotor blade combination sealing item in the axial direction.
Aperture is distinguished in the front-end and back-end of the intermediate blade installation axle, and front end built-up shaft is installed on the front end of intermediate blade
Hole in, rear end built-up shaft is installed in the hole of the rear end of intermediate blade, on the end face in the hole of the front-end and back-end of intermediate blade
It is respectively equipped with shaft shoulder sealing balancing slit.
The rotor blade passes through the fixing pin being intervally arranged and fixing screws are mounted in intermediate blade installation axle.
The front end built-up shaft is equipped with keyway and installation pin hole.
The center of the stator vane is equipped with stator vane combination sealing item, fuel feed hole and oil outlet difference in the axial direction
Positioned at the two sides of stator vane.
It is equipped with front cover sealing ring at the attaching of the cylinder body and front cover, is equipped with rear cover at the attaching of cylinder body and rear cover and seals
Circle.
It is equipped with front cover combined seal ring between the front end built-up shaft and front cover, is set with front cover spiral shell on the built-up shaft of front end
Mother, the front cover nut lock speed up front cover combined seal ring.
It is covered after described and is additionally provided with mounting hole.
The front cover is locked on cylinder body by front cover screw, and rear cover locks the stator leaf on cylinder body by rear cover screw
Piece is locked on cylinder body by stator vane mounting screw.
The utility model has the following beneficial effects:
1, leakproofness is preferable, compact-sized, and outer diameter is smaller.
2, what rotor blade and stator vane were respectively adopted is ring-shaped combined labyrinth and carbon gland item, and it is hydraulic to avoid traditional wobble
There are the slot leakages of runner sealing and shaft shoulder sealing junction for cylinder rectangular seal；And by reducing shaft shoulder annulus area,
And the mode of balancing slit is processed, while improving shoulder rotational stability, shaft shoulder leakage is reduced as far as possible.
3, rotor blade and stator vane are designed to approximate T-shape structure, increase slewing area, rotor blade can turn
Dynamic 250 ° of angular range is also convenient for improving the fixed reliability of blade installation.Utilize the front side of rotor blade and stator vane
The sealing of end face, other than corresponding combination sealing item, the effect of clearance seal is realized in also further fitting contact sealing,
Further decrease leakage rate.
Detailed description of the invention
Attached drawing 1 is the utility model schematic perspective view；
Attached drawing 2 is the schematic perspective view at another visual angle of the utility model；
Attached drawing 3 is the utility model section structural schematic diagram；
Attached drawing 4 is the assembling schematic diagram of rotor blade；
Attached drawing 5 is the structural schematic diagram that the utility model removes rear cover；
Attached drawing 6 is the cut-away diagram after the assembly of the utility model stator vane；
Attached drawing 7 is the utility model rotational angle schematic diagram.
Specific embodiment
For the feature, technological means and specific purposes achieved, function that can further appreciate that the utility model, below
The utility model is described in further detail in conjunction with attached drawing and specific embodiment.
As shown in attached drawing 1-6, the utility model discloses a kind of spiral swing hydranlic pressure jar, including cylinder body 2, and 2 front end of cylinder body is set
There are front cover 8, rear end to be equipped with rear cover 1, is installed with intermediate blade installation axle 28 in cylinder body 2,2 side wall of cylinder body is installed with 3 He of oil inlet pipe
Flowline 5, the 288 rear end attaching of intermediate blade installation axle have the rear end built-up shaft 27 clamped with rear cover 1, intermediate blade installation axle 28
Front end attaching has the front end built-up shaft 29 worn from front cover 8 and be pierced by outward, and 2 inner wall of cylinder body is equipped with and oil inlet pipe 3 and flowline 5
The fuel feed hole 24 and oil outlet 25 of connection, rotor blade 16 is installed in intermediate blade installation axle 28, and 2 inner wall of cylinder body is installed with fixed
Blades 22, the front end face of stator vane 22 are contacted with the fitting of intermediate blade installation axle 28, the front end side of rotor blade 16 with
The fitting contact of 2 inner wall of cylinder body, cylinder body 2, front cover 8, rear cover 1, rotor blade 16 and stator vane 22 form two annular sealings
Chamber.Stator vane and rotor blade are set as T-type structure, are conducive to the hunting range for increasing rotor blade, are also convenient for improving blade
Fixed reliability is installed, the oscillating cylinder slewing area of final design is 250 °, and slewing area is bigger.In addition, 24 He of fuel feed hole
Oil outlet 25 is located at the two sides of stator vane 22, that is, be located at two that rotor blade and stator vane are separated into it is annular close
It seals in chamber, is separately connected high pressure oil and low tension loop, to control the rotation of rotor blade, generate torque output.
The center of the front end face of the rotor blade 16 is equipped with rotor blade combination sealing item 17, this turn in the axial direction
17 annular of blades combination sealing item is wound around on rotor blade 16, is able to carry out good sealing, the end on front side of rotor blade
Face has certain width, other than rotor blade combination sealing item and inboard wall of cylinder block sealing, also utilizes the rotor blade group
The region for closing sealing strip two sides is sealed, and realizes clearance seal, is improved sealing effect, is further decreased leakage rate.Rotor leaf
Piece 16 passes through the fixing pin 19 being intervally arranged and fixing screws 18 are mounted in intermediate blade installation axle 16.In rotor blade one
Three fixing screws and three fixing pins are preferably arranged in side, and fixing screws and fixing pin are staggered installation of, and improve torque and pass
The reliability passed.
Aperture is distinguished in the front-end and back-end of the intermediate blade installation axle 16, and front end built-up shaft 29 is installed on intermediate blade peace
Fill axis front end hole in, rear end built-up shaft 27 is installed in the hole of the rear end of intermediate blade installation axle, prevent be axially moved and
It relatively rotates.It is respectively equipped with shaft shoulder sealing balancing slit 26 on the end face in the hole of the front-end and back-end of intermediate blade installation axle 28, subtracts
The shaft shoulder area of the end face of aperture reduces the shaft shoulder leakage while improving shoulder rotational stability as far as possible.
The front end built-up shaft 29 is equipped with keyway 21 and installation pin hole 20, is easily installed, and guarantees stability when rotation.
The center of the stator vane 22 is equipped with stator vane combination sealing item 23 in the axial direction.Stator vane combination is close
The two sides of strip of paper used for sealing 23 have reserved stator vane width, can preferably realize and seal with intermediate blade installation axle, improve close
Seal effect.
It is equipped with front cover sealing ring 7 at the attaching of the cylinder body 2 and front cover 8, is equipped with rear cover at the attaching of cylinder body 2 and rear cover 1
Sealing ring 6.It is equipped with front cover combined seal ring 10 between front end built-up shaft 29 and front cover 8, is set with front cover on front end built-up shaft 29
Nut 11, the preceding box nut 11 lock front cover combined seal ring 10.Pass through the setting of various sealing rings, it is ensured that cylinder body it is close
Sealing property reduces the internal leakage of cylinder body as far as possible, improves the gross efficiency and service life of oscillating motor.
It is additionally provided with mounting hole 4 on the rear cover 1, is easily installed various angle detecting sensors.
The front cover 8 is locked on cylinder body 2 by 4 front cover screws 13, and rear cover 1 is locked at by 4 rear cover screws 12
On cylinder body 2, stator vane 22 is locked on cylinder body 2 by stator vane mounting screw 15, and the quantity of each screw can be flexible
Setting.The also settable side installation screw 14 in 2 side of cylinder body, convenient for assembling corresponding screw.
As shown in Fig. 7, generally 250 ° of the slewing area of rotor blade, so that the design of rotor blade and stator vane
Reach optimum state.
It should be noted that it is practical new to be not limited to this above is only the preferred embodiment of the utility model
Type, although the utility model is described in detail referring to embodiment, for those skilled in the art, still
It can modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features,
But within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should be included in
Within the protection scope of the utility model.
Claims (10)
1. a kind of spiral swing hydranlic pressure jar, including cylinder body, cylinder body front end is equipped with front cover, rear end is equipped with rear cover, is installed in cylinder body
Between blade installation shaft, cylinder side wall is installed with oil inlet pipe and flowline, and intermediate blade installation shaft rear end attaching has and rear cover clamps
Rear end built-up shaft, the front end attaching of intermediate blade installation axle has the front end built-up shaft worn from front cover and be pierced by outward, which is characterized in that
The inboard wall of cylinder block is equipped with the fuel feed hole and oil outlet being connected to oil inlet pipe and flowline, is installed with and turns in intermediate blade installation axle
Blades, inboard wall of cylinder block are installed with stator vane, and the front end face of stator vane is contacted with the fitting of intermediate blade installation axle, rotor
The front end side of blade is contacted with inboard wall of cylinder block fitting, and cylinder body, front cover, rear cover, rotor blade and stator vane form two annulars
Seal chamber.
2. spiral swing hydranlic pressure jar according to claim 1, which is characterized in that the center of the front end face of the rotor blade
It is equipped with rotor blade combination sealing item in the axial direction.
3. spiral swing hydranlic pressure jar according to claim 2, which is characterized in that the front end of the intermediate blade installation axle is with after
End aperture respectively, front end built-up shaft is installed in the hole of the front end of intermediate blade, after rear end built-up shaft is installed on intermediate blade
In the hole at end, shaft shoulder sealing balancing slit is respectively equipped on the end face in the hole of the front-end and back-end of intermediate blade.
4. spiral swing hydranlic pressure jar according to claim 3, which is characterized in that the rotor blade is consolidated by what is be intervally arranged
Rationed marketing nail and fixing screws are mounted in intermediate blade installation axle.
5. spiral swing hydranlic pressure jar according to claim 4, which is characterized in that the front end built-up shaft is equipped with keyway and peace
Fill pin hole.
6. spiral swing hydranlic pressure jar according to claim 5, which is characterized in that the center of the stator vane is in the axial direction
Equipped with stator vane combination sealing item, fuel feed hole and oil outlet are located at the two sides of stator vane.
7. spiral swing hydranlic pressure jar according to claim 6, which is characterized in that before being equipped at the attaching of the cylinder body and front cover
Rear cover sealing ring is equipped at the attaching of lid sealing ring, cylinder body and rear cover.
8. spiral swing hydranlic pressure jar according to claim 7, which is characterized in that be equipped between the front end built-up shaft and front cover
Front cover combined seal ring is set with preceding box nut on the built-up shaft of front end, which speeds up front cover combined seal ring.
9. spiral swing hydranlic pressure jar according to claim 8, which is characterized in that covered after described and be additionally provided with mounting hole.
10. spiral swing hydranlic pressure jar according to claim 9, which is characterized in that the front cover is locked at by front cover screw
On cylinder body, rear cover is locked on cylinder body by rear cover screw, and stator vane is locked on cylinder body by stator vane mounting screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821444491.9U CN208918954U (en) | 2018-09-05 | 2018-09-05 | A kind of spiral swing hydranlic pressure jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821444491.9U CN208918954U (en) | 2018-09-05 | 2018-09-05 | A kind of spiral swing hydranlic pressure jar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208918954U true CN208918954U (en) | 2019-05-31 |
Family
ID=66703700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821444491.9U Expired - Fee Related CN208918954U (en) | 2018-09-05 | 2018-09-05 | A kind of spiral swing hydranlic pressure jar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208918954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847299A (en) * | 2021-09-18 | 2021-12-28 | 北京中金泰达电液科技有限公司 | Rotary vane type steering engine motor |
-
2018
- 2018-09-05 CN CN201821444491.9U patent/CN208918954U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847299A (en) * | 2021-09-18 | 2021-12-28 | 北京中金泰达电液科技有限公司 | Rotary vane type steering engine motor |
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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: 20190531 Termination date: 20200905 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |