CN105356656A - Electric linear driver having antirust protection and controllable stroke - Google Patents

Electric linear driver having antirust protection and controllable stroke Download PDF

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Publication number
CN105356656A
CN105356656A CN201510924739.6A CN201510924739A CN105356656A CN 105356656 A CN105356656 A CN 105356656A CN 201510924739 A CN201510924739 A CN 201510924739A CN 105356656 A CN105356656 A CN 105356656A
Authority
CN
China
Prior art keywords
sliding sleeve
pull rope
displacement sensor
stroke
linear driver
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.)
Pending
Application number
CN201510924739.6A
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Chinese (zh)
Inventor
潘高
陈永华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING DONGDENG TECHNOLOGY Co Ltd
Original Assignee
CHONGQING DONGDENG TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHONGQING DONGDENG TECHNOLOGY Co Ltd filed Critical CHONGQING DONGDENG TECHNOLOGY Co Ltd
Priority to CN201510924739.6A priority Critical patent/CN105356656A/en
Publication of CN105356656A publication Critical patent/CN105356656A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06Means for converting reciprocating motion into rotary motion or vice versa

Abstract

The invention discloses an electric linear driver having antirust protection and a controllable stroke. The electric linear driver comprises a motor, a slide sleeve pipe, a screw mechanism, a pull rope displacement sensor, a motor controller electrically connected with the pull rope displacement sensor, and a displacement display electrically connected with the pull rope displacement sensor; the slide sleeve pipe is provided with a connecting plate which is connected with a pull rope of the pull rope displacement sensor and which enables the pull rope to be parallel to the slide sleeve pipe in the axial direction; and an electric cylinder further comprises a corrugated telescopic pipe one end of which is in sealing connection with an end portion of a support pipe and the other end of which is in sealing connection with an end portion of a thread bushing. According to the electric linear driver having the antirust protection and the controllable stroke, a telescopic displacement of the slide sleeve pipe of the electric cylinder is detected through the disposed pull rope displacement sensor, so the stroke of the electric cylinder is accurate and controllable, and then the electric cylinder can be conveniently used to drive an object the displacement quantity of which needs to be accurately controlled; and a screw rod is sealed through the corrugated telescopic pipe, and the problem of corrosion damage, caused by contact between water vapor and the screw rod, of the screw rod can be prevented.

Description

With corrosion protection and the controlled electric linear driver of stroke
Technical field
The present invention relates to a kind of drive unit, particularly a kind of electric cylinder.
Background technology
Electric cylinder is the drive unit of rectilinear motion with driven by motor screw mechanism (as sliding screw, ball-screw) by convert rotational motion.The structure of electric cylinder comprises the supporting structure of motor, decelerator, screw mechanism, sliding sleeve and supporting sliding sleeve.
Existing supporting structure comprise be connected with reducer shell support column, be fixed on support column front end and the screw rod of the guide holder be slidably matched with sliding sleeve and fixed guide seat.The parts of supporting structure are more, complex structure, and volume is large, and manufacturing cost is higher.
And existing electric cylinder does not have the device its stroke being carried out to detection and control, when needing the object that must accurately control by electric cylinder drive displacement amount, need to arrange displacement control system in addition, ease of use is poor.
And the hermetically-sealed construction of existing electric cylinder is poor, air easily directly enters in sliding sleeve and screw mechanism is directly contacted with air, and the easy corrosion screw thread pair of the aqueous vapor in air, causes screw mechanism to damage; And screw mechanism lacks lubrication, the easy wear damage of screw mechanism.
Summary of the invention
In view of this, the object of this invention is to provide a kind of with corrosion protection and the controlled electric linear driver of stroke, can not carry out to its stroke the technical problem that accurately controls to solve prior art electric cylinder; And the easy corrosion of the screw mechanism solving existing electric cylinder, wear damage technical problem.
Band corrosion protection of the present invention and the controlled electric linear driver of stroke, comprise motor, sliding sleeve, the straight reciprocating motion of promotion sliding sleeve screw mechanism, connect the decelerator of motor and screw mechanism and support the supporting arrangement of sliding sleeve, the thread bush that described screw mechanism comprises screw mandrel and coordinates with screw mandrel, the end of described sliding sleeve is fixedly connected with thread bush;
Described supporting arrangement comprises the support column be enclosed within outside screw mandrel structure, one end of described support column is fixed on the housing of decelerator, the other end of described support column is provided with guided bearing, described guided bearing comprises the bearing pedestal be fixed in the pore of support column front end and the sliding bearing be fixed in bearing pedestal, and described sliding bearing coordinates with sliding sleeve linear slide;
The displacement display that described electric cylinder also comprises the displacement sensor for pull rope be arranged on bracing or strutting arrangement, the electric machine controller be electrically connected with displacement sensor for pull rope and is electrically connected with displacement sensor for pull rope, described sliding sleeve is provided with and connects and the connecting plate making stay cord axially parallel with sliding sleeve with the stay cord of displacement sensor for pull rope;
Described electric cylinder also comprises the bellows that one end is connected with support column end part seal, the other end is connected with thread bush end part seal.
Further, lubricating grease is provided with in described sliding sleeve.
Further, described band corrosion protection and the controlled electric linear driver of stroke also comprise be connected with the front end of sliding sleeve universal joint, be connected with universal joint before bearing and the rear support hinged with reducer shell.
Beneficial effect of the present invention:
1, band corrosion protection of the present invention and the controlled electric linear driver of stroke; it detects the telescopic displacement of electric cylinder sliding sleeve by arranging displacement sensor for pull rope; thus make the stroke controllable precise of electric cylinder, and then make electric cylinder can easily be used for the accurate object controlled of drive displacement amount need.
2, band corrosion protection of the present invention and the controlled electric linear driver of stroke, it is sealed screw mandrel by bellows, and aqueous vapor can be avoided with screw mandrel to contact the problem causing screw mandrel corrosion to damage.
Accompanying drawing explanation
Fig. 1 is the present embodiment band corrosion protection and the sectional structure schematic diagram of the controlled electric linear driver of stroke.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in the figure, the present embodiment band corrosion protection and the controlled electric linear driver of stroke, comprise the decelerator 3 of motor 1, sliding sleeve 2, the screw mechanism promoting sliding sleeve straight reciprocating motion, connection motor and screw mechanism and support the supporting arrangement of sliding sleeve, the thread bush 5 that described screw mechanism comprises screw mandrel 4 and coordinates with screw mandrel, the end of described sliding sleeve is fixedly connected with thread bush; Described supporting arrangement comprises the support column 6 be enclosed within outside screw mandrel structure, one end of described support column is fixed on the housing of decelerator, the other end of described support column is provided with guided bearing, described guided bearing comprises the bearing pedestal 7 be fixed in the pore of support column front end and the sliding bearing 8 be fixed in bearing pedestal, and described sliding bearing coordinates with sliding sleeve linear slide;
The displacement display 11 that described electric cylinder also comprises the displacement sensor for pull rope 9 be arranged on bracing or strutting arrangement, the electric machine controller 10 be electrically connected with displacement sensor for pull rope and is electrically connected with displacement sensor for pull rope, described sliding sleeve is provided with and connects and the connecting plate 12 making stay cord axially parallel with sliding sleeve with the stay cord of displacement sensor for pull rope;
Described electric cylinder also comprises the bellows 13 that one end is connected with support column end part seal, the other end is connected with thread bush end part seal.
The present embodiment band corrosion protection and the controlled electric linear driver of stroke, it detects the telescopic displacement of electric cylinder sliding sleeve by arranging displacement sensor for pull rope, detection signal input electric machine controller, when displacement sensor for pull rope detects that the telescopic displacement amount of sliding sleeve reaches the displacement preset in the controller, electric machine controller just controls motor stopping or reversion, thus make the stroke controllable precise of electric cylinder, and then make electric cylinder can easily be used for the accurate object controlled of drive displacement amount need; And the detection signal of displacement sensor for pull rope also shows by displacement display, thus make the displacement of electric cylinder visual, the stroke of more convenient people to electric cylinder regulates, and ease of use is better.
And band corrosion protection of the present invention and the controlled electric linear driver of stroke, it is sealed screw mandrel by bellows, and aqueous vapor can be avoided with screw mandrel to contact the problem causing screw mandrel corrosion to damage.
And the present embodiment band corrosion protection and the controlled electric linear driver of stroke, the structure of its supporting arrangement is simple, and volume is little, lightweight, reduction band corrosion protection that can be very large and the manufacturing cost of the controlled electric linear driver of stroke.
As the improvement to the present embodiment, be provided with lubricating grease 14 in described sliding sleeve, by lubricating grease, screw mechanism lubricated, the fretting wear of screw thread pair can be reduced, extend the life-span of electric cylinder.
As the improvement to the present embodiment; described band corrosion protection and the controlled electric linear driver of stroke also comprise be connected with the front end of sliding sleeve universal joint 15, be connected with universal joint before bearing 16 and the rear support 17 hinged with reducer shell, make to be with corrosion protection and the installation of the controlled electric linear driver of stroke is more convenient.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.

Claims (3)

1. one kind with corrosion protection and the controlled electric linear driver of stroke, comprise motor, sliding sleeve, the straight reciprocating motion of promotion sliding sleeve screw mechanism, connect the decelerator of motor and screw mechanism and support the supporting arrangement of sliding sleeve, the thread bush that described screw mechanism comprises screw mandrel and coordinates with screw mandrel, the end of described sliding sleeve is fixedly connected with thread bush; It is characterized in that:
Described supporting arrangement comprises the support column be enclosed within outside screw mandrel structure, one end of described support column is fixed on the housing of decelerator, the other end of described support column is provided with guided bearing, described guided bearing comprises the bearing pedestal be fixed in the pore of support column front end and the sliding bearing be fixed in bearing pedestal, and described sliding bearing coordinates with sliding sleeve linear slide;
The displacement display that described electric cylinder also comprises the displacement sensor for pull rope be arranged on bracing or strutting arrangement, the electric machine controller be electrically connected with displacement sensor for pull rope and is electrically connected with displacement sensor for pull rope, described sliding sleeve is provided with and connects and the connecting plate making stay cord axially parallel with sliding sleeve with the stay cord of displacement sensor for pull rope;
Described electric cylinder also comprises the bellows that one end is connected with support column end part seal, the other end is connected with thread bush end part seal.
2. band corrosion protection according to claim 1 and the controlled electric linear driver of stroke, is characterized in that: be provided with lubricating grease in described sliding sleeve.
3. band corrosion protection according to claim 1 and the controlled electric linear driver of stroke, is characterized in that: also comprise be connected with the front end of sliding sleeve universal joint, be connected with universal joint before bearing and the rear support hinged with reducer shell.
CN201510924739.6A 2015-12-14 2015-12-14 Electric linear driver having antirust protection and controllable stroke Pending CN105356656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510924739.6A CN105356656A (en) 2015-12-14 2015-12-14 Electric linear driver having antirust protection and controllable stroke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510924739.6A CN105356656A (en) 2015-12-14 2015-12-14 Electric linear driver having antirust protection and controllable stroke

Publications (1)

Publication Number Publication Date
CN105356656A true CN105356656A (en) 2016-02-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510924739.6A Pending CN105356656A (en) 2015-12-14 2015-12-14 Electric linear driver having antirust protection and controllable stroke

Country Status (1)

Country Link
CN (1) CN105356656A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108386784A (en) * 2018-03-16 2018-08-10 李启同 A kind of liftable heat radiating type gardens LED street lamp

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08228456A (en) * 1994-12-19 1996-09-03 Fuji Electric Co Ltd Electrically driven cylinder with electronic sensor
CN101441477A (en) * 2007-11-19 2009-05-27 北京航空航天大学 Bending combined two-dimension time-varying load loading unit
CN202718952U (en) * 2012-06-17 2013-02-06 福建省龙岩盛通液压有限公司 Dustproof hydraulic oil cylinder
CN203377730U (en) * 2013-08-06 2014-01-01 中国航天科技集团公司第九研究院第七七一研究所 Electric cylinder possessing self-locking characteristic
CN204205814U (en) * 2014-10-24 2015-03-11 南通德昊精密机械有限公司 A kind of high-precision servo electric cylinder
CN204304692U (en) * 2015-01-22 2015-04-29 温州纳米克自动化科技有限公司 half-sealed electric cylinder

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08228456A (en) * 1994-12-19 1996-09-03 Fuji Electric Co Ltd Electrically driven cylinder with electronic sensor
CN101441477A (en) * 2007-11-19 2009-05-27 北京航空航天大学 Bending combined two-dimension time-varying load loading unit
CN202718952U (en) * 2012-06-17 2013-02-06 福建省龙岩盛通液压有限公司 Dustproof hydraulic oil cylinder
CN203377730U (en) * 2013-08-06 2014-01-01 中国航天科技集团公司第九研究院第七七一研究所 Electric cylinder possessing self-locking characteristic
CN204205814U (en) * 2014-10-24 2015-03-11 南通德昊精密机械有限公司 A kind of high-precision servo electric cylinder
CN204304692U (en) * 2015-01-22 2015-04-29 温州纳米克自动化科技有限公司 half-sealed electric cylinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108386784A (en) * 2018-03-16 2018-08-10 李启同 A kind of liftable heat radiating type gardens LED street lamp

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Application publication date: 20160224