CN107387699A - A kind of lead screw of elevator spline structure - Google Patents
A kind of lead screw of elevator spline structure Download PDFInfo
- Publication number
- CN107387699A CN107387699A CN201710610639.5A CN201710610639A CN107387699A CN 107387699 A CN107387699 A CN 107387699A CN 201710610639 A CN201710610639 A CN 201710610639A CN 107387699 A CN107387699 A CN 107387699A
- Authority
- CN
- China
- Prior art keywords
- feather key
- end cap
- shoulder
- length
- feather
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
- F16H25/2454—Brakes; Rotational locks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F13/00—Common constructional features or accessories
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses a kind of lead screw of elevator spline structure, including end cap and feather key, end cap is fixedly connected on support, leading screw is provided with chute, end cap is equipped with feather key, and feather key lower end coordinates with slide, and feather key upper end insertion end cap realizes rotation stop, feather key shoulder is provided with the upside of feather key right-hand member, is provided with and the cooperation of feather key shoulder, the groove for inserting feather key shoulder with feather key shoulder correspondence position on end cap；Feather key shoulder left side abuts with groove, and feather key shoulder right side abuts with support, realizes positioning of the feather key on leading screw moving direction；Feather key upper surface abuts with end cap, and feather key lower surface abuts with chute, realizes the positioning of feather key diametrically.
Description
Technical field
The present invention relates to elevator technology field, and in particular to lead screw of elevator spline structure.
Background technology
Lift is rotated by drive nut drives leading screw to rise or fall, and is a kind of method for realizing lifting.This side
Method is in order to ensure elevating function, it is necessary to forbids leading screw to rotate, general method is that installation one can prevent leading screw from rotating and allowing
The feather key of leading screw movement.Feather key effectively will could prevent leading screw from rotating by fixation.
Existing lift feather key fixed structure, is shown in Fig. 1.In Fig. 1, end cap plug 5, the support 1 of end cap 2 are from left to right once
String is on leading screw 4, and leading screw 4 is provided with chute 41, and end cap 2 is equipped with feather key 3, and the lower end of feather key 3 is slidably matched with chute 41, feather key 3
Upper end insertion end cap 2 realizes rotation stop, and the left and right ends face of feather key 3 abuts end cap plug 5 respectively and support 1 realizes axial restraint.Its
In, feather key 3 is " one " font (shape according to figure, similarly hereinafter), and its fixed form needs end cap plug 5, screw mandrel in left side
The entire length S=feather key length L+ end cap plug length d of spline structure.Even if by feather key length L+ end cap plug length d all
Accomplish the length lower limit for meeting intensity, the entire length S of the screw mandrel spline structure also includes feather key length L and end cap plug length
D two parts length.
In fields such as vehicle, ship, Aeronautics and Astronautics, miniaturization, lightweight are all developing direction.It is identical in other conditions
In the case of, reduce volume, it is meant that mitigate weight, be energy-saving and emission-reduction, green industry, the basis of low-carbon life.For example, now
The transport of many materials is realized by pipeline, in pipeline internal maintenance upkeep operation, because the limitation of pipeline space is just to phase
Close the requirement that implement proposes volume.And the lift minimized then to implement design selection provide it is a kind of new
Scheme and thinking；Can also be moved in other industrial robot using lift, lift operation, light-weighted lift without
Doubt the energy consumption for advantageously reducing industrial robot itself.
End cap plug 5 and end cap 4 are to be connected by screw, generally 4.End cap plug 5 needs blanking → turnery processing
The hole of mounting screw be molded → is beaten, installation needs mode connects for screw；In order to install end cap plug 5, it is also necessary to beat number on end cap 4
Measure identical hole and tapping；Need and screw hole identical screw.Also to want mounting screw, end cap 4 on axial length by
The influence of screw, end cap 4 are also restrained on the wall thickness of radial direction.
Therefore, in number of parts, entire length, weight all there are the need of optimization in existing lift feather key fixed structure
Ask.
The content of the invention
The technical problem to be solved in the present invention is：On the premise of intensity requirement is met, number of parts how is reduced, is reduced
Entire length and weight, further miniaturization, lightweight, contributed for energy-saving and emission-reduction, green industry, low-carbon life.
To achieve the above object of the invention, the technical solution adopted in the present invention is：A kind of lead screw of elevator spline structure, bag
End cap and feather key are included, end cap is fixedly connected on support, and leading screw is provided with chute, and end cap is equipped with feather key, feather key lower end and chute
It is slidably matched, feather key upper end insertion end cap realizes rotation stop, it is characterised in that：Feather key shoulder, end cap are provided with the upside of feather key right-hand member
Upper and feather key shoulder correspondence position is provided with and the cooperation of feather key shoulder, the groove for inserting feather key shoulder；Feather key shoulder left end
Face abuts with groove, and feather key shoulder right side abuts with support, realizes positioning of the feather key on leading screw moving direction；Feather key upper end
Face abuts with end cap, and the lower end of feather key 3 is slidably matched with chute 41, realizes the positioning of feather key 3 diametrically.
The length of end cap is equal to feather key length.
The beneficial effects of the invention are as follows：
By an increase feather key shoulder and the groove of corresponding end cap, by the left end stress part of feather key by original end
Lid plug is changed into end cap, not only reduces by a part, also cuts an end cap plug in entire length.Also therefore assembling is reduced
With difficulty of processing and gross weight.
Because without the concern for the intensity and size of support and end cap, in the axial direction, feather key length is equal to entire length,
The length of end cap plug can be reduced, and need to only realize that support is fixedly connected for two with end cap, therefore can be saved on end cap
The attachment structure related to end cap plug, can just reduce its wall thickness accordingly on the basis of proof strength, save material and light
Quantify, also thus eliminate corresponding to procedure and linkage editor.
Brief description of the drawings
Fig. 1 is the structural representation of existing lead screw of elevator spline structure；
Fig. 2 is the structural representation of the present invention
Wherein, support (1), end cap (2), groove (21), feather key (3), feather key shoulder (31), leading screw (4), chute (41),
End cap plug (5),
The entire length (S) of screw mandrel spline structure, end cap plug length (d), feather key length (L), feather key shoulder length
(m), end cap bears the radial load partial-length (n) of feather key application, leading screw moving direction (v).
Embodiment
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings.The example of the embodiment is in accompanying drawing
In show, the embodiment being described with reference to the drawings only is exemplary, be only used for explain the present invention, rather than to the present invention limit
System.
The direction of the instructions such as term "front", "rear", "left", "right" described in the present invention and position relationship are based on accompanying drawing
Shown direction and position relationship, only for the purposes of describing and simplifying description, the device or original paper of meaning are not indicated that or imply
The specific orientation that must have, can not be not understood as limitation of the present invention.
As shown in Fig. 2 the lead screw of elevator spline structure, including end cap 2 and feather key 3, end cap 2 are fixedly connected on support 1
On, leading screw 4 is provided with chute 41, and end cap 2 is equipped with feather key 3, and the lower end of feather key 3 is slidably matched with chute 41, the upper end built-in end of feather key 3
Lid 2 realizes rotation stop, is provided with feather key shoulder 31 on the upside of the right-hand member of feather key 3, be provided with end cap 2 with the correspondence position of feather key shoulder 31 with
Feather key shoulder 31 coordinates, the groove 21 for inserting feather key shoulder 31；The left side of feather key shoulder 31 abuts with groove 21, feather key shoulder
The right side of portion 31 abuts with support 1, realizes positioning of the feather key 3 on leading screw moving direction v；The upper surface of feather key 3 is supported with end cap 2
Connect, the lower end of feather key 3 is slidably matched with chute 41, realizes the positioning of feather key 3 diametrically.
Further, the length of end cap 2 can be equal to feather key length L.
In elevator structure, in general, the material end cap 2 and end cap plug 5 of selection are identical, and their intensity will
Higher than feather key 3.Therefore, the length of end cap 2 vertically is mainly determined by feather key length L.And feather key length L needs with feather key 3
The shearing force of the circumferencial direction born is relevant, and the power suffered by feather key shoulder 31 --- radial direction --- is smaller than shearing force, and by
Power mode is different, so the feather key shoulder length m of feather key shoulder 31 is smaller than the radial load partial-length n that end cap is applied by feather key
Many.Therefore, feather key length L has the determination value of minimum.
It is identical in elevator lifting power, screw mandrel 4, support 1 in existing lift and the screw mandrel spline structure of the present invention
When, when end cap 2, feather key 3, screw mandrel 4, the respective material of support 1 are identical, both feather keys 3 will need the circumferencial direction born
Shearing force is identical, and therefore, both feather key length L minimum determination value is identical.Following feather key length L presses identical
Minimum fixed value calculation really.
Therefore, such as Fig. 1, the entire length S=end cap plug length d+ feather keys of screw mandrel spline structure in existing lift
Length L.
Such as Fig. 2, the entire length S=feather key length L of screw mandrel spline structure of the invention.
Obviously, as above institute, in the case where feather key length L is determined and can not be reduced again, screw mandrel spline structure of the invention
Entire length S be less than the entire length S of screw mandrel spline structure in existing lift.Reduce end cap plug 5
Length.Therefore, the present invention can reduce the axial dimension of lift.
The present invention therefore reduce an end cap plug, also therefore reduce assembling and difficulty of processing and gross weight, and
The attachment structure related to end cap plug can be saved on end cap, can just reduce its wall thickness accordingly on the basis of proof strength,
Save material and lightweight.
The present invention specification and drawings be considered as it is illustrative and not restrictive, on the basis of the present invention, ability
Field technique personnel are according to disclosed technology contents, it is not necessary to which performing creative labour can is made to some of technical characteristics
Some are replaced and deformation, within the scope of the present invention.
Claims (2)
1. a kind of lead screw of elevator spline structure, including end cap (2) and feather key (3), end cap (2) are fixedly connected on support (1),
Leading screw (4) is provided with chute (41), and end cap (2) is equipped with feather key (3), and feather key (3) lower end is slidably matched with chute (41), feather key
(3) upper end insertion end cap (2) realizes rotation stop, it is characterised in that：Feather key shoulder (31), end cap are provided with the upside of feather key (3) right-hand member
(2) it is provided with feather key shoulder (31) correspondence position on and coordinates, for inserting the recessed of feather key shoulder (31) with feather key shoulder (31)
Groove (21)；Feather key shoulder (31) left side abuts with groove (21), and feather key shoulder (31) right side abuts with support (1), realizes
Positioning of the feather key (3) on leading screw moving direction (v)；Feather key (3) upper surface abuts with end cap (2), feather key (3) lower end and chute
(41) it is slidably matched, realizes the positioning of feather key (3) diametrically.
2. lead screw of elevator spline structure as claimed in claim 1, it is characterised in that：The length of end cap (2) is grown equal to feather key
Spend (L).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710610639.5A CN107387699B (en) | 2017-07-25 | 2017-07-25 | A kind of lead screw of elevator spline structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710610639.5A CN107387699B (en) | 2017-07-25 | 2017-07-25 | A kind of lead screw of elevator spline structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107387699A true CN107387699A (en) | 2017-11-24 |
| CN107387699B CN107387699B (en) | 2019-08-27 |
Family
ID=60336755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710610639.5A Active CN107387699B (en) | 2017-07-25 | 2017-07-25 | A kind of lead screw of elevator spline structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107387699B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108465576A (en) * | 2018-02-13 | 2018-08-31 | 东莞市联洲知识产权运营管理有限公司 | A kind of auto parts japanning assembly line |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005325956A (en) * | 2004-05-17 | 2005-11-24 | Ntn Corp | Ball screw for motor-driven actuator |
| JP2008232338A (en) * | 2007-03-22 | 2008-10-02 | Nsk Ltd | Ball screw actuator mechanism |
| CN102466018A (en) * | 2010-11-17 | 2012-05-23 | 郑庆各 | Novel transmission variable rectilinear motion mechanism |
| CN203529854U (en) * | 2013-09-22 | 2014-04-09 | 天津埃柯特测控技术有限公司 | Straight-travel manual executing device |
| CN103863976A (en) * | 2014-01-13 | 2014-06-18 | 洛阳锐腾机械设备有限公司 | Worm wheel spiral elevator |
| CN104444924A (en) * | 2013-09-16 | 2015-03-25 | 天津市万新传动设备有限公司 | Lifter with lead screw |
| CN204281194U (en) * | 2014-10-31 | 2015-04-22 | 南京数控机床有限公司 | The lifting mechanism that a kind of feed screw nut pair drives |
-
2017
- 2017-07-25 CN CN201710610639.5A patent/CN107387699B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005325956A (en) * | 2004-05-17 | 2005-11-24 | Ntn Corp | Ball screw for motor-driven actuator |
| JP2008232338A (en) * | 2007-03-22 | 2008-10-02 | Nsk Ltd | Ball screw actuator mechanism |
| CN102466018A (en) * | 2010-11-17 | 2012-05-23 | 郑庆各 | Novel transmission variable rectilinear motion mechanism |
| CN104444924A (en) * | 2013-09-16 | 2015-03-25 | 天津市万新传动设备有限公司 | Lifter with lead screw |
| CN203529854U (en) * | 2013-09-22 | 2014-04-09 | 天津埃柯特测控技术有限公司 | Straight-travel manual executing device |
| CN103863976A (en) * | 2014-01-13 | 2014-06-18 | 洛阳锐腾机械设备有限公司 | Worm wheel spiral elevator |
| CN204281194U (en) * | 2014-10-31 | 2015-04-22 | 南京数控机床有限公司 | The lifting mechanism that a kind of feed screw nut pair drives |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108465576A (en) * | 2018-02-13 | 2018-08-31 | 东莞市联洲知识产权运营管理有限公司 | A kind of auto parts japanning assembly line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107387699B (en) | 2019-08-27 |
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