CN107387699B - A kind of lead screw of elevator spline structure - Google Patents
A kind of lead screw of elevator spline structure Download PDFInfo
- Publication number
- CN107387699B CN107387699B CN201710610639.5A CN201710610639A CN107387699B CN 107387699 B CN107387699 B CN 107387699B CN 201710610639 A CN201710610639 A CN 201710610639A CN 107387699 B CN107387699 B CN 107387699B
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- China
- Prior art keywords
- feather key
- end cap
- shoulder
- lead screw
- elevator
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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
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- 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 structures, including end cap and feather key, end cap is fixedly connected on base, lead screw is provided with sliding slot, end cap is equipped with feather key, and feather key lower end is in sliding fit with the sliding chute, and feather key upper end is embedded in end cap and realizes rotation stop, it is provided with feather key shoulder on the upside of feather key right end, is provided with and the cooperation of feather key shoulder, the groove for being inserted into feather key shoulder on end cap with feather key shoulder corresponding position；Feather key shoulder left side is abutted with groove, and feather key shoulder right side is abutted with base, realizes positioning of the feather key on lead screw moving direction；Feather key upper surface is abutted with end cap, and feather key lower end surface is abutted with sliding slot, realizes feather key positioning in the radial direction.
Description
Technical field
The present invention relates to elevator technology fields, and in particular to lead screw of elevator spline structure.
Background technique
Elevator drives lead screw to rise or fall by driving nut rotation, is a kind of method for realizing lifting.This side
Method is in order to guarantee elevating function, it is necessary to forbid lead screw to rotate, general method is that installation one can prevent lead screw from rotating and allowing
The mobile feather key of lead screw.Feather key, which will be fixed, can just be effectively prevented lead screw rotation.
Existing elevator feather key fixed structure, is shown in Fig. 1.In Fig. 1, end cap plug 5,2 base 1 of end cap are primary from left to right
For string on lead screw 4, lead screw 4 is provided with sliding slot 41, and end cap 2 is equipped with feather key 3, and 3 lower end of feather key is slidably matched with sliding slot 41, feather key 3
Upper end is embedded in end cap 2 and realizes rotation stop, and 3 left and right ends of feather key abuts end cap plug 5 respectively and base 1 realizes axial restraint.Its
In, feather key 3 is linear type (according to shape as shown in the figure, similarly hereinafter), and fixed form needs end cap plug 5, screw rod in left side
The entire length S=feather key length L+ end cap plug length d of spline structure.Even if all by feather key length L+ end cap plug length d
Accomplish that the length lower limit for meeting intensity, the entire length S of the screw rod spline structure also include 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 where, reduce volume, it is meant that mitigate weight, be the basis of energy-saving and emission-reduction, green industry, 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
It closes operating equipment and proposes the requirement of volume.And then to give the design selection of operating equipment to provide a kind of new for the elevator minimized
Scheme and thinking；In addition can also be carried out using elevator in industrial robot it is mobile, lift operation, light-weighted elevator 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 to, generally 4.End cap plug 5 needs blanking → turnery processing
The hole of mounting screw form → is beaten, installation needs screw to connect；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 screw identical with screw hole.Also to want mounting screw, end cap 4 on axial length by
The influence of screw, end cap 4 are also restrained on radial wall thickness.
Therefore, all there are in number of parts, entire length, weight the need of optimization in existing elevator feather key fixed structure
It asks.
Summary of the invention
The technical problem to be solved by the present invention is how to reduce number of parts under the premise of meeting intensity requirement, reduce
Entire length and weight miniaturise, lightweight, contribute for energy-saving and emission-reduction, green industry, low-carbon life.
To achieve the above object of the invention, the technical scheme adopted by the invention is as follows: a kind of lead screw of elevator spline structure, packet
End cap and feather key are included, end cap is fixedly connected on base, and lead screw is provided with sliding slot, and end cap is equipped with feather key, feather key lower end and sliding slot
It is slidably matched, feather key upper end is embedded in end cap and realizes rotation stop, it is characterised in that: be provided with feather key shoulder, end cap on the upside of feather key right end
Upper and feather key shoulder corresponding position is provided with and the cooperation of feather key shoulder, the groove for being inserted into feather key shoulder；Feather key shoulder left end
Face is abutted with groove, and feather key shoulder right side is abutted with base, realizes positioning of the feather key on lead screw moving direction；Feather key upper end
Face is abutted with end cap, and 3 lower end of feather key is slidably matched with sliding slot 41, realizes the positioning in the radial direction of feather key 3.
The length of end cap is equal to feather key length.
The beneficial effects of the present invention are:
The groove for increasing feather key shoulder and corresponding end cap by one, by the left end stress part of feather key by original end
Lid plug becomes end cap, not only reduces by a part, also cuts an end cap plug in entire length.Also therefore reduce assembly
With difficulty of processing and total weight.
Because in the axial direction, feather key length is equal to entire length without the concern for the intensity and size of base and end cap,
The length of end cap plug can be reduced, and need to only realize that base is fixedly connected with end cap two, therefore can save on end cap
Connection structure relevant to end cap plug, can reduce its wall thickness accordingly on the basis of proof strength, save material and light
Quantization, also thus eliminate corresponding processing program and linkage editor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing lead screw of elevator spline structure；
Fig. 2 is structural schematic diagram of the invention
Wherein, base (1), end cap (2), groove (21), feather key (3), feather key shoulder (31), lead screw (4), sliding slot (41),
End cap plug (5),
Entire length (S), end cap plug length (d), the feather key length (L), feather key shoulder length of screw rod spline structure
(m), end cap bears radial force partial-length (n), the lead screw moving direction (v) that feather key applies.
Specific embodiment
The present invention is further illustrated in the following with reference to the drawings and specific embodiments.The examples of the embodiments are in attached drawing
In show, the embodiment being described with reference to the drawings is merely exemplary, for explaining only the invention, rather than to limit of the invention
System.
The direction of the instructions such as term "front", "rear" described in the present invention, "left", "right" and positional relationship are based on attached drawing
Shown in direction and positional relationship, only for the purposes of description and simplification description, do not indicate that or imply meaning device or original part
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 base 1
On, lead screw 4 is provided with sliding slot 41, and end cap 2 is equipped with feather key 3, and 3 lower end of feather key is slidably matched with sliding slot 41,3 upper end built-in end of feather key
Lid 2 realizes rotation stop, is provided with feather key shoulder 31 on the upside of feather key 3 right end, be provided on end cap 2 with 31 corresponding position of feather key shoulder with
The cooperation of feather key shoulder 31, the groove 21 for being inserted into feather key shoulder 31；31 left side of feather key shoulder is abutted with groove 21, feather key shoulder
31 right side of portion is abutted with base 1, realizes positioning of the feather key 3 on lead screw moving direction v；3 upper surface of feather key is supported with end cap 2
It connects, 3 lower end of feather key is slidably matched with sliding slot 41, realizes the positioning in the radial direction of feather key 3.
Further, the length of end cap 2 can be equal to feather key length L.
In elevator structure, for general, the material end cap 2 and end cap plug 5 of selection are identical, their intensity is wanted
Higher than feather key 3.Therefore, end cap 2 is mainly determined by feather key length L along axial length.And feather key length L is needed with feather key 3
The shearing force of the circumferencial direction of receiving is related, and power suffered by feather key shoulder 31 --- radial direction --- is smaller than shearing force, and by
Power mode is different, so 31 feather key shoulder length m of feather key shoulder is smaller than the radial force partial-length n that end cap is applied by feather key
Many.Therefore, feather key length L has the smallest determining value.
It is identical in elevator lifting power, screw rod 4, base 1 in existing elevator and screw rod spline structure of the invention
When, end cap 2, feather key 3, screw rod 4, base 1 respective material it is identical when, circumferencial direction that the feather key 3 of the two will need to bear
Shearing force be it is identical, therefore, the smallest determining value of the feather key length L of the two is identical.Following feather key length L presses identical
The smallest true fixed value calculation.
Therefore, such as Fig. 1, the entire length S=end cap plug length d+ feather key of screw rod spline structure in existing elevator
Length L.
Such as Fig. 2, the entire length S=feather key length L of screw rod spline structure of the invention.
Obviously, institute as above, in the case where feather key length L is determining and cannot reduce again, screw rod spline structure of the invention
Entire length S be less than the entire length S of screw rod spline structure in existing elevator.Reduce an end cap plug 5
Length.Therefore, the present invention can reduce the axial dimension of elevator.
Therefore the present invention reduces by an end cap plug, also therefore reduce assembly and difficulty of processing and total weight, and
Connection structure relevant to end cap plug can be saved on end cap, can reduce its wall thickness accordingly on the basis of proof strength,
Save material and lightweight.
The description and the appended drawings of the invention be considered as it is illustrative and not restrictive, on the basis of the present invention, ability
According to disclosed technology contents, some of technical characteristics can be made field technique personnel by not needing creative labor
Some replacements and deformation, are within the scope of the 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 base (1),
Lead screw (4) is provided with sliding slot (41), and end cap (2) is equipped with feather key (3), and feather key (3) lower end is slidably matched with sliding slot (41), feather key
(3) rotation stop is realized in upper end insertion end cap (2), it is characterised in that: is provided with feather key shoulder (31), end cap on the upside of feather key (3) right end
(2) it is provided with feather key shoulder (31) corresponding position with feather key shoulder (31) cooperation, for being inserted into the recessed of feather key shoulder (31) on
Slot (21)；Feather key shoulder (31) left side is abutted with groove (21), and feather key shoulder (31) right side is abutted with base (1), is realized
Positioning of the feather key (3) on lead screw moving direction (v)；Feather key (3) upper surface is abutted with end cap (2), feather key (3) lower end and sliding slot
(41) it is slidably matched, realizes feather key (3) positioning in the radial direction.
2. lead screw of elevator spline structure as described in claim 1, it is characterised in that: it is long that the length of end cap (2) is equal to feather key
It spends (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 CN107387699A (en) | 2017-11-24 |
| CN107387699B true CN107387699B (en) | 2019-08-27 |
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| 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 |
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| CN (1) | CN107387699B (en) |
Families Citing this family (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 |
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| Publication number | Publication date |
|---|---|
| CN107387699A (en) | 2017-11-24 |
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