CN207131660U - A kind of Telescopic rotary combined type hydraulic cylinder - Google Patents
A kind of Telescopic rotary combined type hydraulic cylinder Download PDFInfo
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- CN207131660U CN207131660U CN201721154320.8U CN201721154320U CN207131660U CN 207131660 U CN207131660 U CN 207131660U CN 201721154320 U CN201721154320 U CN 201721154320U CN 207131660 U CN207131660 U CN 207131660U
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Abstract
A kind of Telescopic rotary combined type hydraulic cylinder is the utility model is related to, it is characterized in that it includes casing, branch sleeve, cylinder barrel, cylinder cap, gear shaft, copper sheathing, big end cap, thrust ball bearing, feather key, gear, valve piston, piston rod, oil guide pipe, small end cover, head, bearing shell, rack, big piston, guide sleeve and snap ring.The utility model has transmission efficiency, transmits the advantages of torque is big and the anglec of rotation accurately controls.
Description
Technical field
It the utility model is related to a kind of hydraulic cylinder, more particularly to a kind of Telescopic rotary combined type hydraulic cylinder.
Background technology
Hydraulic cylinder is the main executive component of Hydraulic Power Transmission System, and hydraulic energy can be converted to mechanical energy by it, has knot
Structure is simple, reliable operation, stable movement, easily realizes stepless speed regulation, and easy to control, and output loads are big, are widely used in engineering
The fields such as machinery, agricultural machinery, mining machinery, ship and Aero-Space.Hydraulic cylinder can realize straight reciprocating motion or rotation
Swing, its forms of motion is single.To realize that the flexible compound motion with rotation needs to use two hydraulic cylinders to complete.
At present, it has been disclosed that the achievable flexible hydraulic cylinder with rotary composite movement of utility model or document.It is a kind of
It is to realize linear reciprocation and rotary motion in the form of screw pair, specific implementation method is：Opened up in piston rod surface
There is spiral guide slot, spacer pin is fixed with cylinder body, when piston rod is for linear motion, be stuck in spacing in spiral guide slot
Pin drives piston rod to rotate.The structure of this hydraulic cylinder is simple, compact, reliable in action, but transmission efficiency is low, transmits and turns
Square is small, and the anglec of rotation is uncontrollable；A kind of is that two closed chambers are formed between piston rod and piston, and piston and piston
Bar can relatively rotate, and piston is circumferentially fixed with cylinder barrel by guide rod, limit the rotation of piston.Formed when piston and piston rod
Inner chamber is passed through pressure oil, piston rod can be promoted to rotate, when the rodless cavity or rod chamber of hydraulic cylinder are passed through pressure oil, you can realizes and lives
Stopper rod stretches.The stretching motion of this hydraulic cylinder and rotary motion are separate, and its anglec of rotation is controllable, and integrated level is high, but
The airtight chamber's difficulty of processing formed between piston rod and piston is big, and is not easy to seal.
The content of the invention
For disadvantage mentioned above, the purpose of this utility model is to provide a kind of transmission efficiency, transmits torque greatly and rotate
The Telescopic rotary combined type hydraulic cylinder that angle accurately controls.
Technology contents of the present utility model are a kind of Telescopic rotary combined type hydraulic cylinder, it is characterized in that it include casing,
Branch sleeve, cylinder barrel, cylinder cap, gear shaft, copper sheathing, big end cap, thrust ball bearing, feather key, gear, valve piston, piston rod, Oil Guide
Pipe, small end cover, head, bearing shell, rack, big piston, guide sleeve and snap ring；
A rack through hole is provided with below casing, is connected in the casing above rack through hole provided with one with rack through hole
Gear cavity；Bearing shell is arranged on the rack via bottoms of casing, and rack is arranged on the bearing shell in rack through hole, the both ends point of rack
Casing is not stretched out from rack through hole, the both ends of rack are respectively fixedly connected with a big piston, are set with two external parts of rack
One cylinder barrel, one end of cylinder barrel are fixedly connected with casing, and the other end of cylinder barrel sets a cylinder cap, is provided with cylinder cap in one and cylinder barrel
The cylinder cap oilhole of connection；Gear is arranged in the gear cavity above rack, and the ratcheting connection of wheel and rack, gear shaft passes through feather key
It is installed in gear, a thrust ball bearing, gear shaft and rack phase is respectively housed on the gear shaft of the gear both sides in gear cavity
Mutually vertical, casing is stretched out at the both ends of gear shaft respectively, and a big end cap is housed between the external part and casing of gear shaft, held greatly
A copper sheathing is provided between lid and gear shaft；Another external part of gear shaft is provided with a blind hole, and gear shaft is provided with the external port of blind hole
One guide sleeve of interior suit, branch sleeve suit at one end on the gear shaft provided with blind hole, fix by one end and the casing of branch sleeve
Connection, the other end of branch sleeve are fixedly connected with a small end cover；Piston rod is a hollow stem, and piston rod one end connects a small work
Fill in and pass through small end cover to be stretched into guide sleeve in the blind hole of gear shaft, piston rod is fixedly connected with small end cover by snap ring, piston
Blind hole is divided into rod chamber and rodless cavity by bar, valve piston and guide sleeve, and the piston rod other end connects a head, set respectively in head
There are two oil guiding holes；Oil guide pipe is arranged in piston rod, and an Oil Guide chamber is formed between oil guide pipe and piston rod, is set on the piston rod
There is the connection through hole of several connection rod chambers and Oil Guide chamber；Oil guide pipe one end connects through valve piston with rodless cavity, oil guide pipe
The other end connects with an oil guiding hole of head, and another oil guiding hole of head connects with Oil Guide chamber.
Slide, be provided with the gear shaft between branch sleeve and gear shaft some in branch sleeve for ease of gear shaft
Guide ring.
Possessed advantage is the utility model compared with prior art：Flexible and rotational oscillating motion of the present utility model
It is separate, the input of the hydraulic oil by controlling telescoping cylinder and oscillating cylinder respectively, output flow can realize that helical pitch is controllable
Screw；Rotary motion of the present utility model is that it is passed by the swing rotary that the transform linear motion of rack is gear
Efficiency of movement is high, can transmit that torque is big, and the utility model also has the advantages of simple in construction, processing technology is good and service life is long.
Brief description of the drawings
Fig. 1 is schematic perspective view of the present utility model.
Fig. 2 be Fig. 1 in XOZ to profile.
Fig. 3 be Fig. 1 in YOZ to profile.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, a kind of Telescopic rotary combined type hydraulic cylinder, it is characterized in that it includes casing 1, connected
Female connector cylinder 2, cylinder barrel 3, cylinder cap 4, gear shaft 5, copper sheathing 6, big end cap 7, thrust ball bearing 8, feather key 9, gear 10, valve piston 11,
Piston rod 12, oil guide pipe 13, small end cover 14, head 15, bearing shell 16, rack 17, big piston 18, guide sleeve 19, the and of guide ring 20
Snap ring 21；
A rack through hole 1.1 is provided with below casing 1, is led in the casing 1 above rack through hole 1.1 provided with one with rack
The gear cavity 1.2 that hole 1.1 connects；Bearing shell 16 is arranged on the bottom of rack through hole 1.1 of casing 1, and rack 17 is arranged on rack through hole
On bearing shell 16 in 1.1, casing 1 is stretched out in the both ends of rack 17 from rack through hole 1.1 respectively, and the both ends of rack 17 are fixed respectively to be connected
A big piston 18 is connect, is set with a cylinder barrel 3 in two external parts of rack 17, one end of cylinder barrel 3 is fixedly connected with casing 1, cylinder
The other end of cylinder 3 sets a cylinder cap 4, and one and the cylinder cap oilhole 4.1 connected in cylinder barrel 3 are provided with cylinder cap 4；Gear 10 is arranged on
In the gear cavity 1.2 of the top of rack 17, gear 10 and 17 ratcheting connection of rack, gear shaft 5 are installed on gear 10 by feather key 9
In, a thrust ball bearing 8, gear shaft 5 and the phase of rack 17 are respectively housed on the gear shaft 5 of the both sides of gear 10 in gear cavity 1.2
Mutually vertical, casing 1 is stretched out at the both ends of gear shaft 5 respectively, and a big end cap 7 is housed between the external part and casing 1 of gear shaft 5,
A copper sheathing 6 is provided between big end cap 7 and gear shaft 5；Another external part of gear shaft 5 is provided with a blind hole 5.1, and gear shaft 5 is set
There is one guide sleeve 19 of suit in the external port of blind hole 5.1, branch sleeve 2 is set with one end on the gear shaft 5 provided with blind hole 5.1,
One end of branch sleeve 2 is fixedly connected with casing 1, and the other end of branch sleeve 2 sets a small end cover 14；Branch sleeve 2 with
Gear shaft 5 between gear shaft 5 is provided with some guide rings 20；Piston rod 12 is a hollow stem, and the one end of piston rod 12 connects one
Valve piston 11 is simultaneously stretched into the blind hole 5.1 of gear shaft through small end cover 14 with guide sleeve 19, and piston rod 12 and small end cover 14 pass through
Snap ring 21 is fixedly connected, and blind hole 5.1 is divided into rod chamber 5.1.1 and rodless cavity by piston rod 12, valve piston 11 and guide sleeve 19
5.1.2, the other end of piston rod 12 connects a head 15, and two oil guiding holes 15.1 are respectively equipped with head 15；Oil guide pipe 13 is arranged on
In piston rod 12, an Oil Guide chamber 22 is formed between oil guide pipe 13 and piston rod 12, several connections are provided with piston rod 12
Rod chamber 5.1.1 and Oil Guide chamber 22 connection through hole 12.1；The one end of oil guide pipe 13 connects through valve piston 11 and rodless cavity 5.1.2
Logical, the other end of oil guide pipe 13 connects with an oil guiding hole 15.1 of head 15, another oil guiding hole 15.1 and the Oil Guide chamber 22 of head 15
Connection.
Operation principle of the present utility model is, when the input hydraulic pressure of an oil guiding hole 15.1 of the head 15 connected with oil guide pipe 13
When oily, hydraulic oil flows through the rodless cavity 5.1.2 that oil guide pipe 13 enters telescoping cylinder, because piston rod 12 passes through guide sleeve 19 and small end cover
14 are fixedly connected so that the transfixion of 12 opposite case of piston rod 1, hydraulic oil is so as to promoting gear shaft 5 in the axis hole of gear 10
Middle slip is simultaneously stretched out to the big outside of end cap 7, conversely, the input hydraulic pressure of oil guiding hole 15.1 oil of the head 15 connected with Oil Guide chamber 22
When, hydraulic oil flows through Oil Guide chamber 21 and enters rod chamber 5.1.1 from connection through hole 12.1, by promoting the gear shaft of guide sleeve 19
5 retract to the direction of small end cover 14；
When input hydraulic pressure oil, hydraulic oil enter cylinder in the cylinder cap oilhole 4.1 of the cylinder cap 4 on the cylinder barrel 3 to the one end of rack 17
In cylinder 3, hydraulic oil promotes rack 17 for linear motion and rotated with moving gear 10, and gear 10 is passed motion to by feather key 9
Gear shaft 5, realize the rotation in a direction of gear shaft 5；Conversely, work as the cylinder to the cylinder cap 4 on the cylinder barrel 3 of the other end of rack 17
Input hydraulic pressure oil in lid oilhole 4.1, hydraulic oil promote rack 17 for linear motion and rotated with moving gear 10, and gear 10 passes through cunning
Key 9 passes motion to gear shaft 5, realizes the rotation of the other direction of gear shaft 5.
It is defeated while by the hydraulic oil of an oil guiding hole 15.1 and the cylinder cap oilhole 4.1 of a cylinder cap 4 to head 15
Enter the flexible screw with rotating synthesizing of achievable gear shaft 5；By controlling the input of hydraulic fluid flow rate, tooth can be controlled respectively
The flexible speed with rotation of wheel shaft.
Claims (2)
- A kind of 1. Telescopic rotary combined type hydraulic cylinder, it is characterized in that it includes casing, branch sleeve, cylinder barrel, cylinder cap, gear Axle, copper sheathing, big end cap, thrust ball bearing, feather key, gear, valve piston, piston rod, oil guide pipe, small end cover, head, bearing shell, tooth Bar, big piston, guide sleeve and snap ring；A rack through hole is provided with below casing, one is provided with the casing above rack through hole The gear cavity connected with rack through hole；Bearing shell is arranged on the rack via bottoms of casing, and rack is arranged on the axle in rack through hole On watt, casing is stretched out in the both ends of rack from rack through hole respectively, and the both ends of rack are respectively fixedly connected with a big piston, in rack Two external parts are set with a cylinder barrel, and one end of cylinder barrel is fixedly connected with casing, and the other end of cylinder barrel sets a cylinder cap, in cylinder cap It is provided with one and the cylinder cap oilhole connected in cylinder barrel；Gear is arranged in the gear cavity above rack, the ratcheting company of wheel and rack Connect, gear shaft is installed in gear by feather key, and a thrust ball axle is respectively housed on the gear shaft of the gear both sides in gear cavity Hold, gear shaft is mutually perpendicular to rack, and casing is stretched out at the both ends of gear shaft respectively, is filled between the external part and casing of gear shaft There is a big end cap, a copper sheathing is provided between big end cap and gear shaft；Another external part of gear shaft is provided with a blind hole, gear shaft A guide sleeve is set with external port provided with blind hole, branch sleeve suit is provided with the gear shaft of blind hole at one end, branch sleeve One end be fixedly connected with casing, the other end of branch sleeve is fixedly connected with a small end cover；Piston rod is a hollow stem, piston Bar one end connects a valve piston and stretched into through small end cover with guide sleeve in the blind hole of gear shaft, and piston rod and small end cover pass through card Ring is fixedly connected, and blind hole is divided into rod chamber and rodless cavity by piston rod, valve piston and guide sleeve, and the piston rod other end connects a bar Head, two oil guiding holes are respectively equipped with head；Oil guide pipe is arranged in piston rod, and an Oil Guide is formed between oil guide pipe and piston rod Chamber, the connection through hole of several connection rod chambers and Oil Guide chamber is provided with the piston rod；Oil guide pipe one end through valve piston with Rodless cavity connects, and the oil guide pipe other end connects with an oil guiding hole of head, and another oil guiding hole of head connects with Oil Guide chamber.
- A kind of 2. Telescopic rotary combined type hydraulic cylinder according to claim 1, it is characterized in that in branch sleeve and gear Gear shaft between axle is provided with some guide rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721154320.8U CN207131660U (en) | 2017-09-11 | 2017-09-11 | A kind of Telescopic rotary combined type hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721154320.8U CN207131660U (en) | 2017-09-11 | 2017-09-11 | A kind of Telescopic rotary combined type hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207131660U true CN207131660U (en) | 2018-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721154320.8U Active CN207131660U (en) | 2017-09-11 | 2017-09-11 | A kind of Telescopic rotary combined type hydraulic cylinder |
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| CN (1) | CN207131660U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387480A (en) * | 2017-09-11 | 2017-11-24 | 江阴市洪腾机械有限公司 | A kind of Telescopic rotary combined type hydraulic cylinder |
| CN110131379A (en) * | 2019-06-05 | 2019-08-16 | 儒拉玛特自动化技术(苏州)有限公司 | A kind of rotary motion driving device |
| CN112901587A (en) * | 2021-01-15 | 2021-06-04 | 重庆仟知佳科技有限公司 | Hydraulic power mechanical power assisting device |
-
2017
- 2017-09-11 CN CN201721154320.8U patent/CN207131660U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387480A (en) * | 2017-09-11 | 2017-11-24 | 江阴市洪腾机械有限公司 | A kind of Telescopic rotary combined type hydraulic cylinder |
| CN110131379A (en) * | 2019-06-05 | 2019-08-16 | 儒拉玛特自动化技术(苏州)有限公司 | A kind of rotary motion driving device |
| CN112901587A (en) * | 2021-01-15 | 2021-06-04 | 重庆仟知佳科技有限公司 | Hydraulic power mechanical power assisting device |
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