CN106451902A - Four-stage ball screw double-electric-cylinder - Google Patents
Four-stage ball screw double-electric-cylinder Download PDFInfo
- Publication number
- CN106451902A CN106451902A CN201610743560.5A CN201610743560A CN106451902A CN 106451902 A CN106451902 A CN 106451902A CN 201610743560 A CN201610743560 A CN 201610743560A CN 106451902 A CN106451902 A CN 106451902A
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- CN
- China
- Prior art keywords
- screw
- level
- cylinder
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- stage
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
Abstract
The invention relates to a four-stage ball screw double-electric-cylinder which is characterized in that a motor is directly connected with a decelerator, the end gear of the decelerator is engaged with the tail gear of a main cylinder in the cylinder body, the main cylinder is installed on a gearbox bearing pedestal through a bearing, and the front end part of the main cylinder is provided with a two-stage screw nut which is screwed with a two-stage hollow screw; the front end of the two-stage hollow screw is provided with a three-stage nut which is screwed with a three-stage hollow screw and the rear end part is provided with an anti-reversal device; the front end part of the three-stage hollow screw is provided with a four-stage nut which is screwed with a four-stage screw push rod and the rear end part is provided with an anti-reversal device; and the four-stage screw push rod is connected with a load platform. The four-stage screw push rod can stretch out stage by stage, all the screws are superposed together, the stage-by-stage telescopic mode is applied in use, and an external cylinder is eliminated so that the radial installing size can be greatly reduced. The ball screw assembly is applied so that the friction can be reduced and the transmission efficiency can be enhanced. The anti-reversal device is additionally arranged at the tail end of the screw so that retreating of the screw caused by compression can be prevented.
Description
Technical field
The present invention relates to the double electric cylinder of a kind of level Four ball-screw, belongs to mechanical transmission fields.
Background technology
Current electric cylinder military products at home and abroad, are widely used in civilian goods, but great majority are single-stage driving mechanism, work
It is very limited as stroke.To expect that big stroke just can only lengthen push rod and locating distance in actual applications.So more
It is the increase in cylinder body weight, bring to designer tired very greatly in the limited occasion strict to weight demands of some installing spaces
Difficult.The present invention is directed to above deficiency and put forward the double electric cylinder of a kind of level Four ball-screw.It is little, heavy that this electric cylinder has installing space
The features such as amount is light, stroke is big.
Content of the invention
It is an object of the invention to provide the double electric cylinder synchronization of a kind of level Four ball-screw and promote load movement so that it is at axle
To, radially and provide larger row journey and high operating efficiency and high life in the case that weight demands is less.
In order to achieve the above object, the technical solution used in the present invention is
Including servomotor（19）By being fixed on gear-box（22）On decelerator（20）Drive is contained in gear-box（22）In
Master gear（21）With master cylinder cylinder（13）Tail gear（28）Ratcheting rotation, master cylinder cylinder（13）Afterbody is provided with angular contact ball bearing
（26）, bearing inner race and master cylinder cylinder（13）Connect and use No. 2 locking nuts（27）Locked, outer ring is set in gear-box（22）In, then
Use pressing plate（25）Stop, master cylinder cylinder（13）Tail end face passes through thrust ball bearing（24）With gear-box（22）End face suits, outer shell
Cylinder（18）With gear-box（22）Fixing connection, leading section inwall installs needle roller bearing without inner ring（17）, bearing inner wall and master cylinder cylinder
（13）Contact, and use drive end bearing bracket（15）Compress.Master cylinder cylinder（13）Leading section inner tube installation the first block（14）And with two grades of nuts
（11）Fixing connection, two grades of nuts（11）With two grades of leading screws（9）Rotatable engagement is installed, two grades of leading screws（9）Afterbody installs anti-reverse
Device, and polytetrafluoroethylene (PTFE) slip ring is inlayed in leading screw outer ring（38）, two grades of leading screws simultaneously（9）The second block is installed in leading section（10）And
With three grades of nuts（7）Fixing, three-level lead screw（6）Afterbody installs anti-reverse-rotation device, and inlays polytetrafluoroethylene (PTFE) slip ring in leading screw outer ring
（38）, three-level lead screw simultaneously（6）Third gear block is installed in leading section（5）And use level Four nut（3）Fixing, level Four leading screw（2）With four
Level nut（3）Rotatable engagement is installed, level Four leading screw（2）Leading section and ring flange（1）It is processed into and be integrally mounted at load platform
（39）On.
Present invention have the advantage that：Use two grades of leading screws（9）, three-level lead screw（6）, level Four leading screw（2）Deng ball-screw
Can stretch out step by step, by two grades of nuts（11）, three grades of nuts（3）, level Four nut（7）Rolling screw movement progress screw mandrel is made straight
Line moves, radially spacing owing to eliminating push rod, thus saves radial and axial installation dimension, reduces whole electric cylinder
Weight.
Use ball-screw, reduce friction, improve operating efficiency, reduce caloric value, and employing is two grades of silks
Thick stick（9）Afterbody installs anti-reverse-rotation device and three-level lead screw（6）Afterbody installs anti-reverse-rotation device, prevents screw mandrel pressurized rollback, favorably
Can regain in order step by step when leading screw is regained.
Brief description
Fig. 1 is the structure principle chart of the present invention；
Fig. 2 is the structure principle chart after twin-tub stretches out；
Fig. 3 is that in one-level anti-reverse-rotation device, spring is compressed front state diagram；
Fig. 4 is state diagram after spring is compressed in one-level anti-reverse-rotation device.
In figure：1st, ring flange；2nd, level Four leading screw；3rd, level Four nut；4th, three grades of splines；5th, third gear block；6th, three-level lead screw；
7th, three grades of nuts；8th, three grades of splines；9th, two grades of leading screws；10th, the second block；11st, two grades of nuts；12nd, weak linkage bar；13rd, master cylinder
Cylinder；14th, the first block；15th, end cap；16th, packing ring；17th, needle roller bearing without inner ring；18th, outer cylinder；19th, motor；20th, reductor；
21st, gear；22nd, gear-box；23rd, No. 1 locking nut；24th, thrust ball bearing；25th, pressing plate；26th, angular contact ball bearing；27th, No. 2
Locking nut；28th, gear；29th, No. 3 locking nuts；30th, one-level contract block；31st, memory spring；32nd, compression spring；33rd, one-level cone
Insert；34th, two grades of contract blocks；35th, memory spring；36th, compression spring；37th, two grades of cones are inserted；38th, polytetrafluoroethylene (PTFE) slide block；39th, load
Platform.
Detailed description of the invention
With example, invention is described further below in conjunction with the accompanying drawings.
Servomotor（19）By being fixed on gear-box（22）On decelerator（20）Drive is contained in gear-box（22）In
Master gear（21）With master cylinder cylinder（13）Tail gear（28）Ratcheting rotation, master cylinder cylinder（13）Afterbody is provided with angular contact ball bearing
（26）, bearing inner race and master cylinder cylinder（13）Connecting and using No. 2 locking nuts 27 locked, outer ring is set in gear-box（22）In, then use
Pressing plate（25）Stop, master cylinder cylinder（13）Tail end face passes through thrust ball bearing（24）With gear-box（22）End face suits, outer cylinder
（18）With gear-box（22）Fixing connection, leading section inwall installs needle roller bearing without inner ring（17）, bearing inner wall and master cylinder cylinder
（13）Contact, and use drive end bearing bracket（15）Compress.Master cylinder cylinder（13）Leading section inner tube installation the first block（14）And with two grades of nuts
（11）Fixing connection, two grades of nuts（11）With two grades of leading screws（9）Rotatable engagement is installed, two grades of leading screws（9）Afterbody installs anti-reverse
Device, and polytetrafluoroethylene (PTFE) slip ring is inlayed in leading screw outer ring（38）, two grades of leading screws simultaneously（9）The second block is installed in leading section（10）And
With three grades of nuts（7）Fixing, three-level lead screw（6）Afterbody installs anti-reverse-rotation device, and inlays polytetrafluoroethylene (PTFE) slip ring in leading screw outer ring
（38）, three-level lead screw simultaneously（6）Third gear block is installed in leading section（5）And use level Four nut（3）Fixing, level Four leading screw（2）With four
Level nut（3）Rotatable engagement is installed, level Four leading screw（2）Leading section and ring flange（1）It is processed into and be integrally mounted at load platform
（39）On.
When real work, electric cylinder and load platform are connected in the horizontal direction or vertical direction fixedly mounts, servo
Motor rotates forward, then electric cylinder does and stretches out motion, promotes load platform to advance.
Servomotor（19）Rotate forward and pass through reductor（20）Drive is contained in gear-box（22）Interior master cylinder cylinder（13）Tail
Portion's pinion rotation, master cylinder cylinder（13）With two grades of nuts（11）Rotate drive two grades of leading screws together（9）Rotate together, simultaneously
Two grades of leading screws（9）With three grades of nuts（7）Drive three-level lead screw（6）Rotate together, work as three-level lead screw（6）It is fixed on during rotary motion
Three-level lead screw（6）Leading section level Four nut（3）Also rotate together, due to level Four leading screw（2）And load platform（39）Connect by footpath
To spacing so level Four leading screw（2）Do straight line and stretch out motion.When level Four leading screw（2）When moving to end, third gear block（5）Limit
Three-level lead screw（6）Rotate and be now fixedly mounted on three-level lead screw（6）Three grades of contract blocks of the anti-reverse-rotation device of afterbody（34）
With two grades of leading screws（9）It is sliding friction state between inwall, three-level lead screw（6）Change doing linear motion into stretch out, work as three-level lead screw
When moving to end, the second block（10）Limit two grades of leading screws（9）Rotate and be now fixedly mounted on two grades of leading screws（9）
Two grades of contract blocks of the anti-reverse-rotation device of afterbody（30）With master cylinder cylinder（13）Between be sliding friction state, two grades of leading screws（9）Change into doing
Linear motion stretches out, due at master cylinder cylinder（13）Afterbody is provided with the rotating cycle to leading screw for the rotary encoder and does accurately control,
So at two grades of leading screws（9）Move to master cylinder cylinder（13）During leading section, motor shuts down.
Work as servomotor（19）During reversion, level Four leading screw（2）First back move, when level Four leading screw（2）Insert with two grades of cones
（37）Touch and be pressed into cone to insert（37）Force two grades of contract blocks（34）With two grades of leading screws（9）Depart from, now three-level lead screw（6）Start past
Backhaul dynamic, work as three-level lead screw（6）Insert with one-level cone（33）Touch and be pressed into cone to insert（33）Force one-level contract block（30）With master cylinder cylinder
（13）Depart from, now two grades of leading screws（9）Back move, when all leading screw reset rear motor stalls.
The function of anti-reverse-rotation device is as shown in Figure 3, Figure 4：After all leading screws are all fully extended or in reaching
When on the way, motor stalling is so and the level Four leading screw that connects of load platform is due to by the radially spacing bow tie that will not occur, but locates
Middle three-level lead screw and two grades of leading screws due to do not have radially spacing have there is the trend of revolution, so the master of anti-reverse-rotation device
Function is wanted to be to make leading screw not turn round under load pressure.
As a example by one-level anti-reverse-rotation device, device is illustrated：Work as servomotor（19）Two grades of leading screws during rotating forward（9）Open
Begin to rotate due to anti-reverse-rotation device and two grades of leading screws（9）It is fixing connection so anti-reverse-rotation device also begins to rotate, this
When one-level contract block（30）With master cylinder cylinder（13）Between be sliding friction, when two grades of leading screws（9）Stall is simultaneously inverted by external force effect
When one-level contract block（30）With master cylinder cylinder（13）Compression prevents from reversing, and works as servomotor（19）During reversion, three-level lead screw（6）Withdrawal is touched
Contact one-level cone to insert（33）End face and continue extruding one-level cone insert force its press-in one-level contract block in the middle of so that one-level contract block is anti-
To disengagement, two grades of screw mandrels（9）Withdrawal can be rotated.
Above detailed description of the invention is used for illustrating the present invention, at the protection domain of spirit and claims of the present invention
In, any modifications and changes that the present invention is made, both fall within protection scope of the present invention.
Claims (3)
1. a level Four ball-screw pair electric cylinder, it is characterised in that；Including servomotor（19）By being fixed on gear-box
（22）On decelerator（20）Drive is contained in gear-box（22）Interior master gear（21）With master cylinder cylinder（13）Tail gear（28）Tooth
Close and rotate, master cylinder cylinder（13）Afterbody is provided with angular contact ball bearing（26）, bearing inner race and master cylinder cylinder（13）Connect and use No. 2 locks
Jack panel（27）Locked, outer ring is set in gear-box（22）In, then use pressing plate（25）Stop, master cylinder cylinder（13）Tail end face is by pushing away
Power ball bearing（24）With gear-box（22）End face suits, outer cylinder（18）With gear-box（22）Fixing connection, leading section inwall is pacified
Dress needle roller bearing without inner ring（17）, bearing inner wall and master cylinder cylinder（13）Contact, and use drive end bearing bracket（15）Compress；Master cylinder cylinder（13）Before
End inner tube installation the first block（14）And with two grades of nuts（11）Fixing connection, two grades of nuts（11）With two grades of leading screws（9）Rotation
Turn to coordinate and install, two grades of leading screws（9）Afterbody installs anti-reverse-rotation device, and inlays polytetrafluoroethylene (PTFE) slip ring in leading screw outer ring（38）, with
When two grades of leading screws（9）The second block is installed in leading section（10）And with three grades of nuts（7）Fixing, three-level lead screw（6）Afterbody is installed anti-
Inversion set, and polytetrafluoroethylene (PTFE) slip ring is inlayed in leading screw outer ring（38）, three-level lead screw simultaneously（6）Third gear block is installed in leading section
（5）And use level Four nut（3）Fixing, level Four leading screw（2）With level Four nut（3）Rotatable engagement is installed, level Four leading screw（2）Leading section
With ring flange（1）It is processed into and be integrally mounted at load platform（39）On.
2. the double electric cylinder of a kind of level Four roller screw according to claim 1, it is characterised in that use two grades of leading screws（9）、
Three-level lead screw（6）, level Four leading screw（2）Can stretch out step by step Deng ball-screw, by two grades of nuts（11）, three grades of nuts（3）, four
Level nut（7）Rolling screw movement progress screw mandrel is for linear motion, radially spacing owing to eliminating push rod, thus saves radially
With axially mounted size, reduce the weight of whole electric cylinder.
3. the double electric cylinder of a kind of level Four roller screw according to claim 1, it is characterised in that two grades of leading screws（9）Afterbody is pacified
Dress anti-reverse-rotation device and three-level lead screw（6）Afterbody installs anti-reverse-rotation device, prevents leading screw pressurized rollback, when beneficially leading screw is regained
Can regain in order step by step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610743560.5A CN106451902A (en) | 2016-11-25 | 2016-11-25 | Four-stage ball screw double-electric-cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610743560.5A CN106451902A (en) | 2016-11-25 | 2016-11-25 | Four-stage ball screw double-electric-cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106451902A true CN106451902A (en) | 2017-02-22 |
Family
ID=58182401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610743560.5A Pending CN106451902A (en) | 2016-11-25 | 2016-11-25 | Four-stage ball screw double-electric-cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106451902A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105355A (en) * | 2017-12-20 | 2018-06-01 | 长安大学 | It is a kind of being capable of the ball-screw actuator that stretches of two level |
| CN109450161A (en) * | 2018-12-25 | 2019-03-08 | 西安索睿科技有限公司 | A kind of heavily loaded multi-stage electric cylinder converted between the grade based on Gear Planet Transmission |
| CN109437029A (en) * | 2018-12-25 | 2019-03-08 | 西安索睿科技有限公司 | The two-way cylinder of telescopic electric step by step of one kind and wheel-mounted crane |
| CN109951016A (en) * | 2017-12-21 | 2019-06-28 | 惠州市科特测控工程有限公司 | A kind of carbon fiber electric cylinder |
| CN110421009A (en) * | 2019-08-29 | 2019-11-08 | 郑州鼎能实业有限公司 | A kind of ball shell type synchronizes the roll squeezer of gap adjustment |
| CN114465410A (en) * | 2022-02-16 | 2022-05-10 | 西安方元明鑫精密机电制造有限公司 | Parallel light-weight electric cylinder structure for excavator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2268019Y (en) * | 1995-07-22 | 1997-11-19 | 易荣任 | Lifting device for telescopic screw rod |
| US20050161649A1 (en) * | 2004-01-22 | 2005-07-28 | Kawasaki Industrial Co., Ltd. | Screw jack |
| CN103072919A (en) * | 2011-10-25 | 2013-05-01 | 西安华欧精密机械有限责任公司 | NC (Numerical Control) three-order telescopic ball screw top |
| CN103277474A (en) * | 2013-06-04 | 2013-09-04 | 中联重科股份有限公司 | Screw transmission type telescoping mechanism and engineering machine |
| CN104583646A (en) * | 2012-08-31 | 2015-04-29 | Ntn株式会社 | Electric direct-acting actuator and electric disc brake device |
-
2016
- 2016-11-25 CN CN201610743560.5A patent/CN106451902A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2268019Y (en) * | 1995-07-22 | 1997-11-19 | 易荣任 | Lifting device for telescopic screw rod |
| US20050161649A1 (en) * | 2004-01-22 | 2005-07-28 | Kawasaki Industrial Co., Ltd. | Screw jack |
| CN103072919A (en) * | 2011-10-25 | 2013-05-01 | 西安华欧精密机械有限责任公司 | NC (Numerical Control) three-order telescopic ball screw top |
| CN104583646A (en) * | 2012-08-31 | 2015-04-29 | Ntn株式会社 | Electric direct-acting actuator and electric disc brake device |
| CN103277474A (en) * | 2013-06-04 | 2013-09-04 | 中联重科股份有限公司 | Screw transmission type telescoping mechanism and engineering machine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105355A (en) * | 2017-12-20 | 2018-06-01 | 长安大学 | It is a kind of being capable of the ball-screw actuator that stretches of two level |
| CN109951016A (en) * | 2017-12-21 | 2019-06-28 | 惠州市科特测控工程有限公司 | A kind of carbon fiber electric cylinder |
| CN109450161A (en) * | 2018-12-25 | 2019-03-08 | 西安索睿科技有限公司 | A kind of heavily loaded multi-stage electric cylinder converted between the grade based on Gear Planet Transmission |
| CN109437029A (en) * | 2018-12-25 | 2019-03-08 | 西安索睿科技有限公司 | The two-way cylinder of telescopic electric step by step of one kind and wheel-mounted crane |
| CN109450161B (en) * | 2018-12-25 | 2024-03-12 | 西安索睿科技有限公司 | Heavy-load multistage electric cylinder based on planetary transmission interstage conversion |
| CN110421009A (en) * | 2019-08-29 | 2019-11-08 | 郑州鼎能实业有限公司 | A kind of ball shell type synchronizes the roll squeezer of gap adjustment |
| CN114465410A (en) * | 2022-02-16 | 2022-05-10 | 西安方元明鑫精密机电制造有限公司 | Parallel light-weight electric cylinder structure for excavator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20170222 |