CN1014539B - hydraulic rotary power oil cylinder - Google Patents
hydraulic rotary power oil cylinderInfo
- Publication number
- CN1014539B CN1014539B CN 89105415 CN89105415A CN1014539B CN 1014539 B CN1014539 B CN 1014539B CN 89105415 CN89105415 CN 89105415 CN 89105415 A CN89105415 A CN 89105415A CN 1014539 B CN1014539 B CN 1014539B
- Authority
- CN
- China
- Prior art keywords
- piston
- power cylinder
- piston rod
- cylinder
- hydraulic
- 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
Links
- 238000001514 detection method Methods 0.000 claims abstract description 10
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 31
- 230000033001 locomotion Effects 0.000 description 10
- 238000012360 testing method Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 241000272161 Charadriiformes Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- BQYJATMQXGBDHF-UHFFFAOYSA-N difenoconazole Chemical compound O1C(C)COC1(C=1C(=CC(OC=2C=CC(Cl)=CC=2)=CC=1)Cl)CN1N=CN=C1 BQYJATMQXGBDHF-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000005690 magnetoelectric effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Landscapes
- Actuator (AREA)
Abstract
The invention relates to a hydraulic actuating mechanism, in particular to a hydraulic rotary power cylinder. It is composed of hydraulic motor, power oil cylinder and detection device. The piston of the oil cylinder does not rotate along with the piston rod, so that the service lives of the kinematic pair and a sealing part of the kinematic pair are prolonged, and the power output and the control precision of the whole system are improved. The head of the piston rod is provided with a cutter which can replace a power main shaft of a rotary machine tool or a power head of a main shaft of the machine tool.
Description
The present invention relates to a kind of hydraulic actuator, particularly a kind of hydraulic rotating power cylinder.
Open day of U.S. Pat-3386340(: June 4 nineteen sixty-eight) number communique discloses a kind ofly by fluid motor-driven, can make rotation and straight-line driver simultaneously.It is moved along cylinder body by the piston assembly that is encapsulated in the cylinder body, driving a main shaft that stretches out from motor moves axially, piston can be rotated to support on the main shaft, and work or cutter can be installed in and stretch out on the outer main shaft of cylinder body, at the front end of cylinder body a sealing positive stop have been installed also.In addition, West Germany's " hydraulic pressure and pneumatic " (Oelhydraulik und Fneumatik) magazine, fifth phase nineteen eighty-two and in November, 1984 periodical introduced two kinds of hydraulic rotating power cylinders (seeing Fig. 1, Fig. 2) once.Oil cylinder shown in Figure 1, its line shaft runs through oil hydraulic motor and oil cylinder piston, and structure is compact, but needs design special oil hydraulic motor and its coupling, and the versatility of oil hydraulic motor is poor.Oil cylinder shown in Figure 2, oil hydraulic motor and power cylinder are two bodies, and the versatility of oil hydraulic motor is better.Aforesaid three kinds of hydraulic rotating power cylinders, the piston rod and the piston of power cylinder are made of one.Piston and piston rod do to rotate to-and-fro motion simultaneously, so the seal loading complexity on the piston, influence working life.If improve the output power of oil cylinder, the physical dimension of its structure will strengthen, piston diameter also strengthens thereupon, because piston also is rotated motion simultaneously reciprocating, the linear velocity of Sealing improves with the piston diameter increase on the piston periphery, quickened Sealing, cylinder body and wearing for piston, descend to working life.These three kinds of hydraulic rotating power cylinders do not have automatic control device.
The objective of the invention is to overcome the deficiencies in the prior art, the hydraulic rotating power cylinder that provides a kind of oil cylinder piston not rotate with piston rod, thereby prolong the working life of kinematic pair and kinematic pair Sealing, improved the control accuracy of power output and whole system.
Hydraulic rotating power cylinder mainly contains oil hydraulic motor, power cylinder and detection device and forms.The line shaft of oil hydraulic motor is slidingly matched by the piston rod keyhole of key formula structure and power cylinder.The relative piston inner hole rotation of piston rod, the Sealing sealing is arranged between its hole, piston carries out axially locating by the forward and backward buffer that is installed on the piston rod, in the course of the work, the relative piston inner hole of piston rod rotates, the relative cylinder tube wall of piston does reciprocating linear motion, be fixed between forward and backward buffer on the piston rod and side face of piston ring the plane thrust bearing is housed, the other end of forward and backward buffer is processed with annular gap formula damping device, does not produce impact when guaranteeing that piston motion is to the front and back terminal point.The configurable control detection device of power cylinder, the control detection device cooperates forming control system with microcomputer, analog-digital converter, proportional amplifier, Proportional valve and measuring amplifier etc.The control detection device is made up of pressure transducer and tachogenerator.Tachogenerator comprises test the speed head and pulser.The control detection device can carry out the motion control (the control procedure block diagram is seen Fig. 5) of power cylinder with direct detected various parameters by microcomputer in the course of the work.Controlled device has a target component, its parameter is rotating speed, torque, point-to-point speed, load, its target component is input to computer (digital quantity), computer digital quantity after treatment is after the digital to analog converter conversion, analog amount is input to proportional amplifier, simulate amount after amplifying is input to Proportional valve, Proportional valve can be controlled hydraulic rotating power cylinder by control flow rate, pressure, makes its output speed, torque, straight line motion and thrust meet the requirement of controlled device.
Hydraulic rotating power cylinder of the present invention with the oil cylinder of traditional straight reciprocating motion, develops into the hydraulic rotating power cylinder of making rotation and linear reciprocation compound motion.Hydraulic rotating power cylinder is with three kinds of form output movements, enlarge the application area of oil cylinder in hydraulic transmission and simplified driving mechanism, dwindle the physical dimension of driving mechanism, given full play to hydraulicdriven stepless speed regulation, specific power is big, advantages such as stable drive.Because hydraulic rotating power cylinder of the present invention, realization has the relative cylinder barrel wall of rotating hydraulic oil cylinder piston periphery to rotate to be the relative piston inner hole rotation of piston rod, reduce the relative linear velocity of kinematic pair under the same rotating speed, improved friction condition, prolonged working life.Forward and backward buffer has guaranteed that oil cylinder piston does not produce impact at forward and backward end position, helps reciprocating stationarity and avoids impacting.Behind forming control systems such as hydraulic rotating power cylinder configuration control detection device and microcomputer, can accomplish that output speed, torque, compound motion speed and thrust meet the requirement of controlled device, improved the control accuracy of whole hydraulic system.Below in conjunction with accompanying drawing most preferred embodiment of the present invention is further described.
Fig. 1 is the structure sectional view of hydraulic rotating power cylinder in the prior art.
Fig. 2 is the structure sectional view of another hydraulic rotating power cylinder in the prior art.
Fig. 3 is the structure sectional view of hydraulic rotating power cylinder of the present invention.
Fig. 4 is the piston of hydraulic rotating power cylinder of the present invention and the partial sectional view of piston rod coupling part.
Fig. 5 is the controlling party block diagram of hydraulic rotating power cylinder of the present invention.
Among the figure: 1, piston rod; 2, adjusting nut; 3, pad; 4, oil connection; 5, seal ring; 6, front cover; 7, " O " RunddichtringO; 8, cylinder barrel; 9, line shaft; 10, anterior bumper; 11, piston; 12, piston ring; 13, " O " RunddichtringO; 14, locking nut; 15, posterior bumper; 16, " YX " RunddichtringO; 17, packing holder; 18, circlip for shaft; 19, rolling bearing; 20, pulser; 21, dust ring; 22, " YX " RunddichtringO; 23, guideway; 24, socket head screw; 25, cylinder seat; 26, " O " RunddichtringO; 27, pulse ring; 28, oil hydraulic motor; 29, " O " RunddichtringO; 30, rear end cover; 31, thrust bearing; 32, the head that tests the speed.
The hydraulic pressure of the present invention power cylinder (seeing Fig. 3 and 4) of walking around during as the main shaft of drilling machine, milling machine, boring machine and plover mill machine or unit head, mainly is made up of oil hydraulic motor, power cylinder and detection device.Oil hydraulic motor 28 is connected with line shaft 9, drives piston rod 1 rotation by the bond structure on the line shaft 9, and described bond structure can adopt singly-bound, two key and spline structure.Piston 11 and piston rod 1 are for movingly, by anterior bumper 10 and screwed posterior bumper 15 axially locating, between two surface of contact of forward and backward buffer and piston 11 thrust bearing 31 is housed, the pretightening force of thrust bearing 31 can be regulated by posterior bumper 15.The other end of forward and backward buffer is processed with annular gap formula damping device, prevents from that piston 11 from producing when moving to cylinder barrel 8 front and back terminals to impact.Guideway 23 not only plays the leading role to piston rod, but also play radially carrying effect to piston rod 1, can have uniform groove (not shown) in the internal surface of guideway 23, the pressure oil film of setting up in groove can play the radial support effect to piston rod 1.Oil film in the uniform groove can be provided by oil cylinder itself.Piston 11 peripheries are equipped with piston ring 12, the close circle 13 of " O " type is housed between piston 11 endoporus and piston rod 1 fitting surface, when line shaft 9 rotates under the drive of oil hydraulic motor 28, driving piston rod 1 by spline rotates together, piston 11 does not change because of endoporus and piston rod 1 keep relative cylinder barrel movingly, when oil pump simultaneously to oil cylinder and oil hydraulic motor during for pressure oil, then piston rod 1 is not only reciprocating but also rotate.Directly loading onto cutter on piston rod is alternative machine tool chief axis, can satisfy processing technology requirements such as drilling, boring, milling, honing, also can be used as unit head, with the supporting use of machine tool chief axis.The screw that the pressure transducer of control detection device places cylinder barrel 8 two ends to communicate with inner cavity of cylinder respectively, can measure the oil pressure at piston 11 two ends respectively, the pulser 20 of speed probe is fixed on the pulse ring 27 of line shaft 9 rear ends, with line shaft 9 rotation, testing the speed 32 is fixed on the position of rear end cover 30 with respect to pulser 20.Described pulser 20 is fixed on the pulse ring 27 so that even number spare is uniform, pulse ring is in the form of annular discs, it is fixed on the line shaft 9, rotation along with line shaft 9, driving pulse ring 27 rotates together, pulser 20 sends magnetic line of force signal and gives sensor, and the signal that sensor goes out converts electrical signal to through magnetoelectric effect.The electrical signal that pressure transducer and speed probe record is through measuring amplifier, analog-digital converter input microcomputer is handled, the control signal of handling the back input is through digital to analog converter, proportional amplifier, Proportional valve, control enters the flow and the pressure of the pressure oil of oil cylinder and oil hydraulic motor respectively, to satisfy the requirement of processing technology to piston rod 1 output speed, torque, point-to-point speed and thrust, has guaranteed machining accuracy.
Claims (4)
1, a kind of hydraulic rotating power cylinder mainly is made up of oil hydraulic motor, power cylinder and detection device, it is characterized in that:
Described oil hydraulic motor is connected with line shaft, and the keyhole of the key formula structure of line shaft and the piston rod of power cylinder is slidingly matched;
In the described power cylinder between piston inner hole and the piston rod for movingly, be equipped with on the excircle of piston between the endoporus of piston ring, piston and piston rod fitting surface the O RunddichtringO be housed;
Described piston carries out axially locating by the forward and backward buffer that is installed on the piston rod, between forward and backward buffer and piston two ends the plane thrust bearing is housed.
2, hydraulic rotating power cylinder according to claim 1 is characterized in that: guideway also is housed on the described power cylinder, has uniform groove on the internal surface of guideway.
3, hydraulic rotating power cylinder according to claim 1 is characterized in that: discoid pulse ring is housed on the described line shaft, and pulser is fixed on the pulse ring so that even number spare is uniform.
4, require 1 described hydraulic rotating power cylinder according to patent, it is characterized in that: the key formula structure on the line shaft is a spline structure, and the keyhole on the piston rod is a splined hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105415 CN1014539B (en) | 1989-04-01 | 1989-04-01 | hydraulic rotary power oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105415 CN1014539B (en) | 1989-04-01 | 1989-04-01 | hydraulic rotary power oil cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1046027A CN1046027A (en) | 1990-10-10 |
| CN1014539B true CN1014539B (en) | 1991-10-30 |
Family
ID=4856176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89105415 Expired CN1014539B (en) | 1989-04-01 | 1989-04-01 | hydraulic rotary power oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1014539B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494165A (en) * | 2011-11-29 | 2012-06-13 | 上海汇益控制***股份有限公司 | Piston type crisis intercepter valve |
| DE102012219099A1 (en) | 2012-10-19 | 2014-04-24 | Kadia Produktion Gmbh + Co. | Honing |
| CN103883580B (en) * | 2014-04-15 | 2016-08-24 | 上海理工大学 | Rotate and straight line is combined hydraulic servo cylinder |
| CN105041758B (en) * | 2015-08-14 | 2017-05-10 | 中国船舶重工集团公司第七一九研究所 | Integrated hydraulic cylinder with functions of rotating and telescoping |
| CN110273938A (en) * | 2018-03-16 | 2019-09-24 | 西安博贤机电设备有限公司 | A kind of annular axis clutch cylinder |
| CN111828432A (en) * | 2020-07-14 | 2020-10-27 | 胡单 | Hydraulic oil cylinder assembly |
| RU209062U1 (en) * | 2021-08-31 | 2022-01-31 | Акционерное общество "Всероссийский научно-исследовательский институт "Сигнал" | hydraulic cylinder |
-
1989
- 1989-04-01 CN CN 89105415 patent/CN1014539B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1046027A (en) | 1990-10-10 |
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| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
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