CN202187973U - Hydraulic single-stage spiral oscillating oil cylinder - Google Patents
Hydraulic single-stage spiral oscillating oil cylinder Download PDFInfo
- Publication number
- CN202187973U CN202187973U CN2011202710261U CN201120271026U CN202187973U CN 202187973 U CN202187973 U CN 202187973U CN 2011202710261 U CN2011202710261 U CN 2011202710261U CN 201120271026 U CN201120271026 U CN 201120271026U CN 202187973 U CN202187973 U CN 202187973U
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- linear piston
- cylinder body
- oscillating oil
- hydraulic pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model discloses a hydraulic single-stage spiral oscillating oil cylinder comprising a cylinder body, a linear piston and a transmission shaft, wherein the linear piston is arranged in the cylinder body; external rotary teeth and female spline are formed on the linear piston; internal rotary teeth meshed with the external rotary teeth of the linear piston are formed on the inner wall of the cylinder body; and male spline matched with the female spline of the linear piston is formed on the transmission shaft. Through the adoption of a single-stage rotary gear with a large-spiral angle, the hydraulic single-stage spiral oscillating oil cylinder has the advantage that the stroke of the piston is greatly reduced, and relatively larger rotation angle and torque can be realized in a quite small space.
Description
Technical field
The utility model relates to a kind of hydraulic pressure single step helical oscillating oil cylinder.
Background technique
At present; Through hydraulic jack transmitting torque and pivot angle; Be that the fluid input that will have energy is converted into one of method of moment of torsion and pivot angle output, the hydraulic pressure oscillating oil cylinder of this type is used always has two kinds of structural types, that is: gear rack oscillating oil cylinder and blade oscillating oil cylinder.
The gear rack type swing oil cylinder is formed and is comprised: compositions such as straight line oil cylinder, gear, tooth bar; The gear rack type swing oil cylinder is to promote the tooth bar to-and-fro motion through the straight line oil cylinder, thereby rack and pinion is meshed and reaches the output purpose that the straight reciprocating motion of oil cylinder is converted into the oscillating motion of gear.The shortcoming of this kind oil cylinder is: boundary dimension is big, and it is many to take up room, and is not suitable for the occasion of transmitting big pendulum angle.
The blade radial of said blade oscillating oil cylinder is arranged; On hydraulic oil effect and the blade; The final rotation that realizes live axle; The shortcoming of this kind blade oscillating oil cylinder is: leakage rate is big, can not under low speed and high pressure, work, and mechanical property softer (promptly rotating speed can reduce rapidly when load increases) can't realize 360 degree rotations.
In the existing technology, a kind of two-stage screw oscillating oil cylinder is arranged also, this kind two-stage screw oscillating oil cylinder can obtain the vector addition of angle of swing through every grade of spiral corner, though angle of swing has increased, the moment of torsion that transmits reduces greatly.
Therefore, be necessary to provide a kind of hydraulic pressure single step helical oscillating oil cylinder that can solve the problems of the technologies described above.
The model utility content
The utility model technical problem to be solved is: a kind of stroke that dwindles piston is provided, in minimum space, can realizes bigger angle of swing and moment of torsion.
For solving the problems of the technologies described above; The technological scheme that the utility model adopts is: a kind of hydraulic pressure single step helical oscillating oil cylinder; It comprises: cylinder body, linear piston and transmission shaft, and said linear piston is arranged in the cylinder body, and said linear piston is provided with inner rotary tooth and internal spline; Said inboard wall of cylinder block is provided with the interior rotary teeth that is meshed with the inner rotary tooth of linear piston, and said transmission shaft is provided with the external splines that matches with the internal spline of linear piston.
The beneficial effect of the utility model is: the hydraulic pressure single step helical oscillating oil cylinder in the utility model has dwindled the stroke of piston greatly through the single-stage swing pinion technology that adopts large helix angle, in minimum space, can realize bigger angle of swing and moment of torsion.
Description of drawings
Fig. 1 is the structural representation of hydraulic pressure single step helical oscillating oil cylinder.
Fig. 2 is the sectional view along A-A line shown in Figure 1.
Fig. 3 is the sectional view along B-B line shown in Figure 1.
Among Fig. 1 to Fig. 3: 1, cylinder body, 10, interior rotary teeth, 100, hydraulic pressure single step helical oscillating oil cylinder, 11,12, hydraulic fluid port; 13,14, airtight cavity, 15, end cap, 150,22, axle is with sealing, 151, end face seal; 16 Cock screws, 2, linear piston, 20, the inner rotary tooth, 21, internal spline; 23, the hole is with sealing, and 3, transmission shaft, 30, external splines.
Embodiment
See also Fig. 1 to Fig. 3; A kind of hydraulic pressure single step helical oscillating oil cylinder 100; This hydraulic pressure single step helical oscillating oil cylinder 100 comprises: cylinder body 1, linear piston 2 and transmission shaft 3, and said linear piston 2 is arranged in the cylinder body 1, and said linear piston 2 is provided with inner rotary tooth 20 and internal spline 21; Said cylinder body 1 inwall is provided with the interior rotary teeth 10 that is meshed with the inner rotary tooth 20 of linear piston 2, and said transmission shaft 3 is provided with the external splines 30 that matches with the internal spline 21 of linear piston 2.Said cylinder body 1 is provided with hydraulic fluid port 11,12, is provided with sealing between said cylinder body 1, linear piston 2 and the transmission shaft 3, and spatial in the cylinder body 1 is slit into two independently airtight cavitys 13,14, each airtight cavity 13,14 respectively with cylinder body 1 on hydraulic fluid port 11,12 be communicated with.Be provided with axle between said linear piston 2 and the transmission shaft 3 with sealing 22.Be provided with the hole between said linear piston 2 and cylinder body 1 inwall with sealing 23.The end of said cylinder body 1 is provided with end cap 15, and said end cap 15 is fixed on the cylinder body 1 through Cock screw 16.Be provided with axle between said end cap 15 and the transmission shaft 3 with sealing 150.Be provided with end face seal 151 between said end cap 15 and the cylinder body 1.
The working principle of this hydraulic pressure single step helical oscillating oil cylinder 100 is: when pressure oil gets into airtight cavity 13 through hydraulic fluid port 12; Said linear piston 2 axially moves under the effect of pressure oil and radially rotates; Pressure oil produces pressure actions at seal chamber 13 and produces thrust and the rotation through linear piston 2 converts pivot angle and moment of torsion at the piston periphery; Match through internal spline in the linear piston 2 21 and external splines 30 on the transmission shaft 3 again moment of torsion is rerun a movie on the transmission shaft 3; 3 of transmission shafts are done swing or are rotatablely moved in the time of linear piston 2 motion, and linear piston 2 when cylinder body 1 inwall moves with pivot angle as straight line or rotatablely move and transmission shaft do relative sliding motion.When hydraulic fluid port 12 is oil-filled, said transmission shaft 3 turns clockwise.Otherwise when when hydraulic fluid port 11 dashes oil, said transmission shaft is rotated counterclockwise.In the movement process of oil cylinder, can fix by cylinder body 1, transmission shaft 3 motion output torques also can be that transmission shaft 3 is fixing, cylinder body 1 motion output torque.
Hydraulic pressure single step helical oscillating oil cylinder 100 in the utility model can be implemented in and realizes bigger corner and transmitting large torque in the very little stroke; This hydraulic pressure single step helical oscillating oil cylinder 100 has saved the process of the corner vector addition of two-stage screw form; Corner and moment of torsion that linear piston 2 motions draw act directly on the transmission shaft 3, have improved transmission efficiency and have obtained bigger moment of torsion.
Claims (7)
1. hydraulic pressure single step helical oscillating oil cylinder; It is characterized in that: this hydraulic pressure single step helical oscillating oil cylinder comprises: cylinder body, linear piston and transmission shaft; Said linear piston is arranged in the cylinder body; Said linear piston is provided with inner rotary tooth and internal spline, and said inboard wall of cylinder block is provided with the interior rotary teeth that is meshed with the inner rotary tooth of linear piston, and said transmission shaft is provided with the external splines that matches with the internal spline of linear piston.
2. a kind of hydraulic pressure single step helical oscillating oil cylinder as claimed in claim 1; It is characterized in that: said cylinder body is provided with hydraulic fluid port; Be provided with sealing between said cylinder body, linear piston and the transmission shaft; Spatial in the cylinder body is slit into two independently airtight cavitys, each airtight cavity respectively with cylinder body on hydraulic fluid port be communicated with.
3. a kind of hydraulic pressure single step helical oscillating oil cylinder as claimed in claim 2 is characterized in that: be provided with axle between said linear piston and the transmission shaft with sealing.
4. like claim 1 or 2 or 3 described a kind of hydraulic pressure single step helical oscillating oil cylinders, it is characterized in that: be provided with the hole between said linear piston and the inboard wall of cylinder block with sealing.
5. a kind of hydraulic pressure single step helical oscillating oil cylinder as claimed in claim 4, it is characterized in that: the end of said cylinder body is provided with end cap, and said end cap is fixed on the cylinder body through Cock screw.
6. a kind of hydraulic pressure single step helical oscillating oil cylinder as claimed in claim 5 is characterized in that: be provided with axle between said end cap and the transmission shaft with sealing.
7. a kind of hydraulic pressure single step helical oscillating oil cylinder as claimed in claim 6 is characterized in that: be provided with end face seal between said end cap and the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202710261U CN202187973U (en) | 2011-07-28 | 2011-07-28 | Hydraulic single-stage spiral oscillating oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202710261U CN202187973U (en) | 2011-07-28 | 2011-07-28 | Hydraulic single-stage spiral oscillating oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202187973U true CN202187973U (en) | 2012-04-11 |
Family
ID=45919427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202710261U Expired - Fee Related CN202187973U (en) | 2011-07-28 | 2011-07-28 | Hydraulic single-stage spiral oscillating oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202187973U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275910A (en) * | 2015-11-23 | 2016-01-27 | 孙飞 | Swing oil cylinder with double helical surfaces |
-
2011
- 2011-07-28 CN CN2011202710261U patent/CN202187973U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275910A (en) * | 2015-11-23 | 2016-01-27 | 孙飞 | Swing oil cylinder with double helical surfaces |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104595425A (en) | Harmonic reducer with short barrel-shaped flexible wheel | |
| CN102644588B (en) | Fluid pressure and mechanical energy converter | |
| CN201225348Y (en) | Hydraulic two-stage spiral swinging oil cylinder | |
| CN103016430A (en) | Swash plate piston hydraulic transformer controlled by swing hydraulic motor | |
| CN202187973U (en) | Hydraulic single-stage spiral oscillating oil cylinder | |
| CN201351645Y (en) | Oscillating hydraulic cylinder | |
| CN204533027U (en) | There is the spiral oscillating oil cylinder of axial force compensation function | |
| CN209129526U (en) | Power head of core drilling machine hydraulic gear-shifting structure and power head | |
| CN205225612U (en) | High -speed air pump of double cam | |
| CN107387479A (en) | A kind of novel bidentate bar gear liquid cylinder pressure | |
| CN104676079B (en) | A kind of compact valve driving machine structure | |
| CN203162308U (en) | Hydraulic operated valve operation device | |
| CN103334926A (en) | Rotating stator type double-acting variable vane pump | |
| CN211648639U (en) | Spiral swing oil cylinder | |
| CN111649018B (en) | Pump-controlled hydraulic cylinder integrated with external rotor motor | |
| CN204082765U (en) | Auto lock oil cylinder | |
| CN204961191U (en) | Novel slush pump based on screw drive | |
| CN204253749U (en) | The speed reducer of a kind of involute gear and cycloidal gear combination transmission | |
| CN204186693U (en) | A kind of auto lock oil cylinder | |
| CN203098138U (en) | Hydraulic swing motor used for large diameter valve switch | |
| CN205779992U (en) | Novel swing servo hydraulic cylinder | |
| CN202484242U (en) | Spiral swing type torque output hydraulic device | |
| CN203835462U (en) | Planet screw type machine | |
| CN216975698U (en) | Driving device for converting linear motion into rotation | |
| CN106151151B (en) | Spiral oscillating oil cylinder with axial force compensation function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20160728 |