CN205195491U - Electronic jar of sealed lubrication in area, shock attenuation and overload protection structure - Google Patents
Electronic jar of sealed lubrication in area, shock attenuation and overload protection structure Download PDFInfo
- Publication number
- CN205195491U CN205195491U CN201521052494.4U CN201521052494U CN205195491U CN 205195491 U CN205195491 U CN 205195491U CN 201521052494 U CN201521052494 U CN 201521052494U CN 205195491 U CN205195491 U CN 205195491U
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- CN
- China
- Prior art keywords
- sliding sleeve
- electric cylinder
- bearing
- protection structure
- thread bush
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- 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
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Abstract
The utility model discloses an electronic jar of sealed lubrication in area, shock attenuation and overload protection structure, including motor, sliding sleeve, lead screw and with lead screw complex thread bush, be provided with rubber buffering pad between the terminal surface of sliding sleeve and thread bush, electronic jar still includes corrugated extension tube, draws pressure sensor and controller, the utility model discloses a corrugated extension tube seals the lead screw, can avoid aqueous vapor and lead screw contact to cause the problem that the lead screw corrosion damaged, and it is through setting up the vice axial impact force of rubber buffering pad buffer pair screw mechanism screw thread between sliding sleeve and thread bush, it is vice to avoid the axial impact force to damage the screw thread, and it is through drawing pressure sensor in the setting of sliding sleeve tip, when the load that draws pressure sensor to electronic jar increases to its limit load, the controller is the control motor stop work just, thereby can play overload protection's effect to electronic jar, avoid transshipping and damage, be favorable to prolonging the life -span of electronic jar.
Description
Technical field
The utility model 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 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.
And existing electric cylinder does not have damping, buffering function, because motor changes greatly at course of work medium velocities such as startup, stopping, commutations, screw drive pair is hit power greatly, easily causes screw drive pair to damage.
Further, existing electric cylinder does not have limiting force defencive function, and when clamping stagnation appears in the object that electric cylinder promotes, motor there will be the problem of overlond running, and then easily causes electric cylinder to damage.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of electric cylinder with seal lubrication, damping and overcurrent protection structure, with the technical problem of the easy corrosion of the screw mechanism solving existing electric cylinder, wear damage; And electric cylinder does not have damping, buffering function in solution prior art, in the courses of work such as electric motor starting, stopping, commutation, screw drive pair is hit power greatly, holds flimsy technical problem; And solution electric cylinder lacks the technical problem of overload protection.
The utility model band seal lubrication, the electric cylinder of damping and overcurrent protection structure, comprise motor, sliding sleeve, promote the screw mechanism of sliding sleeve straight reciprocating motion, connect the decelerator of motor and screw mechanism, and the supporting arrangement of supporting sliding sleeve, described supporting arrangement comprises the support column be enclosed within outside screw mechanism, 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, described sliding bearing coordinates with sliding sleeve linear slide,
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;
Rubber buffer is provided with between described sliding sleeve and the end face of thread bush;
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;
Described electric cylinder also comprises the pull pressure sensor being connected to sliding sleeve front end and the controller controlling motor, and described pull pressure sensor and controller electrical connection, described pull pressure sensor is also connected with piecing devices.
Further, the power output shaft of described decelerator is connected by spring coupling with screw mandrel.
Further, lubricating grease is provided with in described sliding sleeve.
Further, described piecing devices comprise the universal joint that is connected with the front end of sliding sleeve and universal joint connect before bearing, described reducer shell is hinged with rear support.
Further, described sliding bearing is graphite bearing.
The beneficial effects of the utility model:
1, the electric cylinder of the utility model band seal lubrication, damping and overcurrent protection structure, the front end that its supporting arrangement is arranged on sliding sleeve is inner, and the structure of supporting arrangement is simple, and volume is little, lightweight, the manufacturing cost of reduction electric cylinder that can be very large.
2, the electric cylinder of the utility model band seal lubrication, damping and overcurrent protection structure, 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.
3, the electric cylinder of the utility model band seal lubrication, damping and overcurrent protection structure; it by arranging rubber buffer between sliding sleeve and thread bush; in the courses of work such as electric motor starting, stopping, commutation; rubber buffer can cushion the axial impact force to screw mechanism screw thread pair; thus the damage of axial impact force double thread pair can be avoided, reduce the failure rate of electric cylinder.
4, the electric cylinder of the utility model band seal lubrication, damping and overcurrent protection structure; it is by arranging pull pressure sensor in sliding sleeve end; there is clamping stagnation in the object driven when electric cylinder in the course of work; when electric cylinder load is increased; when pull pressure sensor detects that the load of electric cylinder increases to its limit load, controller just controls motor stall, thus can play the effect of overload protection to electric cylinder; avoid overload to damage, be conducive to the life-span extending electric cylinder.
Accompanying drawing explanation
Fig. 1 is the present embodiment band seal lubrication, the sectional structure schematic diagram of the electric cylinder of damping and overcurrent protection structure.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in the figure, the present embodiment band seal lubrication, the electric cylinder of damping and overcurrent protection structure, comprise motor 1, sliding sleeve 2, promote the screw mechanism of sliding sleeve straight reciprocating motion, connect the decelerator 3 of motor and screw mechanism, and the supporting arrangement of supporting sliding sleeve, described supporting arrangement comprises the support column 4 be enclosed within outside screw mechanism, 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 5, described guided bearing comprises the bearing pedestal 51 be fixed in the pore of support column front end and the sliding bearing 52 be fixed in bearing pedestal, described sliding bearing coordinates with sliding sleeve linear slide,
The thread bush 7 that described screw mechanism comprises screw mandrel 6 and coordinates with screw mandrel, the end of described sliding sleeve is fixedly connected with thread bush;
Rubber buffer 8 is provided with between described sliding sleeve and the end face of thread bush;
Described electric cylinder also comprises the bellows 9 that one end is connected with support column end part seal, the other end is connected with thread bush end part seal;
Described electric cylinder also comprises the pull pressure sensor 10 being connected to sliding sleeve front end and the controller 11 controlling motor, and described pull pressure sensor and controller electrical connection, described pull pressure sensor is also connected with piecing devices.
The electric cylinder of the present embodiment band seal lubrication, damping and overcurrent protection structure, the front end that its supporting arrangement is arranged on sliding sleeve is inner, and the structure of supporting arrangement is simple, and volume is little, lightweight, the manufacturing cost of reduction electric cylinder that can be very large.
And the electric cylinder of the present embodiment band seal lubrication, damping and overcurrent protection structure, 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 seal lubrication, damping and overcurrent protection structure electric cylinder; it by arranging rubber buffer between sliding sleeve and thread bush; in the courses of work such as electric motor starting, stopping, commutation; rubber buffer can cushion the axial impact force to screw mechanism screw thread pair; thus the damage of axial impact force double thread pair can be avoided, reduce the failure rate of electric cylinder.
Further; the electric cylinder of the present embodiment band seal lubrication, damping and overcurrent protection structure; it is by arranging pull pressure sensor in sliding sleeve end; there is clamping stagnation in the object driven when electric cylinder in the course of work, when making electric cylinder load increase, when pull pressure sensor detects that the load of electric cylinder increases to its limit load; controller just controls motor stall; thus the effect of overload protection can be played to electric cylinder, avoid overload to damage, be conducive to the life-span extending electric cylinder.
As the improvement to the present embodiment, the power output shaft of described decelerator is connected by spring coupling 12 with screw mandrel, in the courses of work such as electric motor starting, stopping, commutation, the gear of decelerator and the screw thread pair of screw mechanism also can be subject to the impulsive force of circumferencial direction, by spring coupling, circumferencial direction impulsive force is cushioned, reducer gear and screw thread pair can be avoided to be hit damage.
As the improvement to the present embodiment, be provided with lubricating grease 13 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 piecing devices comprise the universal joint 14 that is connected with the front end of sliding sleeve and universal joint connect before bearing 15, described reducer shell is hinged with rear support 16.Before in this improvement, bearing is connected with universal joint, makes the installation site adjustable range of front bearing large, and then makes this electric cylinder installation better adaptability in actual applications.
As the improvement to the present embodiment, described sliding bearing is graphite bearing, and graphite bearing has the features such as self-lubricating, high temperature resistant, corrosion-resistant, light weight, and make the weight of supporting structure lighter, the life-span is longer.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (5)
1. a band seal lubrication, the electric cylinder of damping and overcurrent protection structure, comprise motor, sliding sleeve, promote the screw mechanism of sliding sleeve straight reciprocating motion, connect the decelerator of motor and screw mechanism, and the supporting arrangement of supporting sliding sleeve, it is characterized in that: described supporting arrangement comprises the support column be enclosed within outside screw mechanism, 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, described sliding bearing coordinates with sliding sleeve linear slide,
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;
Rubber buffer is provided with between described sliding sleeve and the end face of thread bush;
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;
Described electric cylinder also comprises the pull pressure sensor being connected to sliding sleeve front end and the controller controlling motor, and described pull pressure sensor and controller electrical connection, described pull pressure sensor is also connected with piecing devices.
2. the electric cylinder of band seal lubrication according to claim 1, damping and overcurrent protection structure, is characterized in that: the power output shaft of described decelerator is connected by spring coupling with screw mandrel.
3. the electric cylinder of band seal lubrication according to claim 1, damping and overcurrent protection structure, is characterized in that: be provided with lubricating grease in described sliding sleeve.
4. the electric cylinder of band seal lubrication according to claim 1, damping and overcurrent protection structure; it is characterized in that: described piecing devices comprise the universal joint that is connected with the front end of sliding sleeve and universal joint connect before bearing, described reducer shell is hinged with rear support.
5. the electric cylinder of band seal lubrication according to claim 1, damping and overcurrent protection structure, is characterized in that: described sliding bearing is graphite bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521052494.4U CN205195491U (en) | 2015-12-14 | 2015-12-14 | Electronic jar of sealed lubrication in area, shock attenuation and overload protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521052494.4U CN205195491U (en) | 2015-12-14 | 2015-12-14 | Electronic jar of sealed lubrication in area, shock attenuation and overload protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205195491U true CN205195491U (en) | 2016-04-27 |
Family
ID=55788436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521052494.4U Expired - Fee Related CN205195491U (en) | 2015-12-14 | 2015-12-14 | Electronic jar of sealed lubrication in area, shock attenuation and overload protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205195491U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391235A (en) * | 2015-12-14 | 2016-03-09 | 重庆东登科技有限公司 | Dynamoelectric linear actuator with sealing and lubricating, shock-absorbing and overload protection structure |
-
2015
- 2015-12-14 CN CN201521052494.4U patent/CN205195491U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391235A (en) * | 2015-12-14 | 2016-03-09 | 重庆东登科技有限公司 | Dynamoelectric linear actuator with sealing and lubricating, shock-absorbing and overload protection structure |
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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 |
Granted publication date: 20160427 Termination date: 20161214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |