CN204681206U - A kind of structure of direct-connected electric cylinder - Google Patents
A kind of structure of direct-connected electric cylinder Download PDFInfo
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- CN204681206U CN204681206U CN201520390400.8U CN201520390400U CN204681206U CN 204681206 U CN204681206 U CN 204681206U CN 201520390400 U CN201520390400 U CN 201520390400U CN 204681206 U CN204681206 U CN 204681206U
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- electric cylinder
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Abstract
The utility model belongs to direct-connected electric cylinder field of mechanical structure design, relate to a kind of structure of direct-connected electric cylinder, this structural change juncture of screw mandrel and bearing holder (housing, cover), on the basis that optical axis coordinates, add one section of threaded engagement mode, and shaft coupling is connection wire rod no longer directly, but connecting axle bearing sleeve and motor shaft; The utility model is by improving design of part simultaneously, and the little screw of electric cylinder is connected.The direct-connected electric cylinder internal structure of this structure is more simply compact, and manufacturing cost is lower.
Description
Technical field
The utility model belongs to direct-connected electric cylinder field of mechanical structure design, particularly relates to the reasonable connected mode of a kind of heavy-duty motor and minor diameter screw mandrel, and simplifies the connected mode between electric cylinder part.
Background technology
Along with the increase of electric cylinder application, the requirement of client to electric cylinder is more and more higher, and some industry requires higher to the speed of electric cylinder and acceleration, and this just means needs to select that nominal diameter is constant and helical pitch becomes large screw mandrel.When electric cylinder thrust is constant, speed and acceleration larger, motor need moment of torsion and power larger.In this case the connected mode of a kind of heavy-duty motor and minor diameter screw mandrel has just been related to.
At present, on market, the motor shaft of direct-connected electric cylinder is connected by shaft coupling with screw axis, screw axis must have two joint ladder optical axises, first segment ladder optical axis and bearing holder (housing, cover) connect, second section ladder optical axis and shaft coupling connect, the increase of ladder optical axis makes the minimum diameter of axle of screw mandrel reduce, and the intensity of axle is weakened, and the moment of torsion that can bear reduces.When screw mandrel is connected with the motor shaft in larger axis footpath by shaft coupling, because the screw mandrel diameter of axle is less, usually cause screw mandrel moment of torsion inadequate, or during type selecting, do not have suitable shaft coupling available.In this case just need select the screw mandrel in larger axis footpath, thus make the corresponding increase of other parts of electric cylinder, cause the waste of resource, add the manufacturing cost of electric cylinder.
In addition, the connected mode between current electric cylinder parts is comparatively complicated, often needs more screw to connect, so both add part processing cost between two parts, more loaded down with trivial details when also making to assemble.
Summary of the invention
In order to solve the connected mode problem of heavy-duty motor and minor diameter screw mandrel, simplify the connected mode between electric cylinder part, the utility model has structurally carried out innovating improving to electric cylinder structure.
The utility model solves the technical scheme that its technical problem adopts: on the connectivity problem of motor shaft and screw axis, change the mechanical structure of screw mandrel and bearing holder (housing, cover), screw mandrel first segment multidiameter is designed to optical axis, external threading on second section multidiameter, distal end faces tapping female bore.Bearing holder (housing, cover) is processed into shoulder hole, and first segment shoulder hole coordinates, for positioning and guiding with screw mandrel first segment multidiameter; Car internal thread in second section shoulder hole, screws with screw mandrel second section multidiameter.Meanwhile, in second section shoulder hole, be screwed into a stud, form two screw thread uncoupling gear.With screw, stud and screw mandrel are coupled together again.Last shaft coupling connecting axle bearing sleeve and motor shaft; Simplifying in the connected mode between part, first isolate support ring two ends and respectively have locating and machining seam and two pin-and-holes, ensure that motor shaft and the concentric of bearing and the relative rotation preventing part, then with inner hole of cylinder step surface location, finally under the effect of pull bar, part is compressed.
The beneficial effects of the utility model are: when motor shaft and the screw axis diameter of axle differ larger, the screw mandrel selecting larger axis footpath can be avoided, make the corresponding reduction of each related components size, and the connected mode simplified between most part, reach and make electric cylinder internal structure more simply compact, the object that manufacturing cost is lower.
Accompanying drawing explanation
Fig. 1 electric structure figure.
1. feed screw nut pairs, 2. bearing holder (housing, cover), 3. bearing pedestal, 4. bearing, 5. straight pin, 6. locking nut in figure, 7. stud, 8. soket head cap screw, 9. motor, 10. hex nut, 11. front end housing flanges, 12. pull bars, 13. circle cylinder barrels, 14. shaft couplings, 15. isolation support rings, 16, motor adpting flange.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
In the drawings, screw mandrel axle stretch end (1) is connected by tape guide screw thread with bearing holder (housing, cover) (2), bearing (4) inner ring is arranged on bearing holder (housing, cover) (2), locked by locking nut (6), bearing holder (housing, cover) (2) endoporus is screwed into stud (7), with soket head cap screw (8), stud (7) is connected fastening with screw mandrel (1) axle stretch end, shaft coupling (14) connecting axle bearing sleeve (2) and motor shaft (9).Above step achieves the connection of relative heavy-duty motor and relative minor diameter screw mandrel.
Bearing (4) outer ring is contained in bearing pedestal (3), the end contact of the shoulder hole of bearing pedestal (3) upper surface and circle cylinder barrel (13), lower surface contacts with the upper surface of isolation support ring (15), and be furnished with straight pin (5), the lower surface of isolation support ring (13) contacts with the upper surface of motor adpting flange (16), and be furnished with straight pin (5), (16) have attacked screwed hole with motor adpting flange, pull bar (12) is screwed in screwed hole, railing (12) two ends are all multidiameter and have external screw thread, the upper end of pull bar (12) is by the through hole on front end housing flange (11), then by hex nut (10) steady brace, compress front end housing flange (11) simultaneously.Above step makes substantially not need screw to connect between part, simplifies design of part.
Claims (2)
1. the structure of a direct-connected electric cylinder, it is characterized in that: in the connected mode of motor shaft and screw axis, change the mechanical structure of screw mandrel and bearing holder (housing, cover), screw mandrel first segment multidiameter is designed to optical axis, external threading on second section multidiameter, distal end faces tapping female bore, bearing holder (housing, cover) is shoulder hole, first segment shoulder hole coordinates, for positioning and guiding with screw mandrel first segment multidiameter; In second section shoulder hole, there is internal thread, screw with screw mandrel second section multidiameter, in second section shoulder hole, be screwed into a stud, form two screw thread uncoupling gear, with screw, stud and screw mandrel are coupled together, shaft coupling connecting axle bearing sleeve and motor shaft.
2. the structure of direct-connected electric cylinder according to claim 1, it is characterized in that simplifying in the connected mode between part, respectively there are locating and machining seam and two pin-and-holes in isolation support ring two ends, ensure that motor shaft and the concentric of bearing and the relative rotation preventing part, with inner hole of cylinder step surface location, under the effect of pull bar, part is compressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520390400.8U CN204681206U (en) | 2015-06-09 | 2015-06-09 | A kind of structure of direct-connected electric cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520390400.8U CN204681206U (en) | 2015-06-09 | 2015-06-09 | A kind of structure of direct-connected electric cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204681206U true CN204681206U (en) | 2015-09-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520390400.8U Active CN204681206U (en) | 2015-06-09 | 2015-06-09 | A kind of structure of direct-connected electric cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204681206U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017148360A1 (en) * | 2016-02-29 | 2017-09-08 | 天津科为客科技有限公司 | Linear transmission device, disassembly method, and linear transmission device capable of preventing jamming due to preloading |
| CN109368544A (en) * | 2018-11-12 | 2019-02-22 | 江苏建发科技有限公司 | A kind of composited steel and plastic decking dedicated unit |
-
2015
- 2015-06-09 CN CN201520390400.8U patent/CN204681206U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017148360A1 (en) * | 2016-02-29 | 2017-09-08 | 天津科为客科技有限公司 | Linear transmission device, disassembly method, and linear transmission device capable of preventing jamming due to preloading |
| CN109368544A (en) * | 2018-11-12 | 2019-02-22 | 江苏建发科技有限公司 | A kind of composited steel and plastic decking dedicated unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: No. 303 Optics Valley Wenxuan core center 430074 Hubei province Wuhan city Optics Valley Road Room 303 Patentee after: Mutter Technology (Wuhan) Limited by Share Ltd Address before: No. 303 Optics Valley Wenxuan core center 430074 Hubei city of Wuhan province Wuhan city Optics Valley Road, Room 303 Patentee before: Wuhan Mut Science and Technology Ltd. |