CN206320253U - A kind of spiral expanding device - Google Patents
A kind of spiral expanding device Download PDFInfo
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- CN206320253U CN206320253U CN201621480670.9U CN201621480670U CN206320253U CN 206320253 U CN206320253 U CN 206320253U CN 201621480670 U CN201621480670 U CN 201621480670U CN 206320253 U CN206320253 U CN 206320253U
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- screw rod
- telescoping mechanism
- nut
- prime
- rear class
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Abstract
The utility model provides a kind of spiral expanding device, including drive mechanism, some grades of telescoping mechanisms, and telescoping mechanism includes screw rod and nut, and when screw rod is rotated, nut can be moved on screw rod；The screw rod of drive mechanism driving first order telescoping mechanism is rotated；Rear class telescoping mechanism screw sleeve is outside prime telescoping mechanism screw rod and is connected thereto, and can be moved axially relatively between adjacent screws, drives rear class telescoping mechanism screw rod to rotate when prime telescoping mechanism screw rod is rotated；Filling spheroid in circular groove, circular groove is provided between the nut of prime telescoping mechanism and the screw rod of rear class telescoping mechanism, when stretching, prime telescoping mechanism nut drives rear class screw rod to stretch out or retract by spheroid.The utility model is driven using multiple coil, and the length of demand can be elongated in the confined space, is realized flexible in order, the power of prime telescoping mechanism is passed into rear class telescoping mechanism using steel ball, nut is avoided with screw rod by directly contacting transmission power, abrasion is reduced, reduces fault rate.
Description
Technical field
The utility model belongs to Robot Design field, is related to a kind of spiral expanding device.
Background technology
Crusing robot is when carrying out inspection, and its fuselage can be not accurate to up to all positions, especially for some machines
The robot that body can only stretch in upper next dimension, when it, which detects target, has a certain distance with its detection sensor, is needed
Wanting sensor can move forward and backward, to improve homework precision.
Chinese invention patent document CN102235840A《A kind of Ju Ba robots jacking system》Elaborate that one kind uses bullet
The jacking system of reed pipe prepared material, its positioning method positions for switch, and catch bar and relay type column interaction complete elevating function,
Risen or such a device is applicable with target during target practice, or the application scenarios packed up, target lighter weight is using mutual
The bourdon tube saw lumber being nested with can meet corresponding demand.Such a scheme is not suitable for continuously lifting by central controller controls
Application scenarios, while being difficult to ensure that the stability of elevating mechanism in heavier loads.
Chinese invention patent application CN104942826A《A kind of robot lowering or hoisting gear and elevating method》In disclose one
The robot lifting scheme that grade slide rail is added using drawstring is planted, to lift step by step when the device is lifted, higher is required to drawstring, it is non-
Often it is practically applicable to relatively large robot, its stability can reduce for the larger robot of small-sized distance of stretch out and draw back, in addition, the invention
Patent application uses lifting rope, and drawstring both uses as lifting power transmission, is also the head-rope of each cursor slide, lifting
Journey, drawstring is easily rocked so that robot lifting is not reliable enough.
The content of the invention
To solve the problem of prior art is present, the utility model provides a kind of spiral expanding device, utilizes multiple coil
Transmission, can be elongated to the length of demand in the confined space, realize flexible in order.
The spiral expanding device that the utility model is provided, including drive mechanism, some grades of telescoping mechanisms, the telescoping mechanism bag
Screw rod, nut are included, the nut sleeve is on screw rod, and when screw rod is rotated, nut can be moved on screw rod；The drive mechanism is driven
The screw rod of dynamic first order telescoping mechanism is rotated；The screw sleeve of rear class telescoping mechanism outside the screw rod of prime telescoping mechanism and and its
It can be moved axially relatively between connection, adjacent screws, rear class telescoping mechanism screw rod is driven when prime telescoping mechanism screw rod is rotated
Rotate；It is provided between the nut of prime telescoping mechanism and the screw rod of rear class telescoping mechanism in circular groove, the circular groove and is filled with spheroid, is stretched
During contracting, the nut of prime telescoping mechanism drives rear class screw rod to stretch out or retract by spheroid.The utility model uses spiral lifting,
It is simple in construction, using nested structure step by step, using worm drive principle, multiple coil transmission is carried out, can be in the confined space
The length of needs is elongated to, realizes and stretch in order, with larger telescopic extensions in small space, compact conformation, small volume,
Spheroid is filled between prime telescoping mechanism nut and rear class telescoping mechanism screw rod, similar crossed roller bearing structure is formed, utilized
Spheroid carries out flexible transmission, advantageously reduces the driving power of drive mechanism.
Rear class telescoping mechanism screw rod of the present utility model and prime telescoping mechanism screw rod are connected by the muscle of mutual cooperation, groove
Connect, the muscle is arranged on the inner surface of rear class telescoping mechanism screw rod, groove is axially arranged on the appearance of prime telescoping mechanism screw rod
In face, the muscle insertion groove.On the one hand the cooperation of muscle and groove realizes the connection of two-stage telescoping mechanism screw rod, realizes that power is passed
Pass, another side does not influence the translation of telescoping mechanism, associated screws are connected with groove by muscle, realize that power is transmitted so that this reality
Only need a drive mechanism that multiple drive power can be achieved with new, without providing single engine for every one-level telescoping mechanism
Structure, greatlys save resource, simplifies device structure.
Telescoping mechanism described in the utility model also includes outer sleeve, and the outer sleeve is connected with nut, wherein, afterbody is stretched
The outer sleeve of contracting mechanism is enclosed within outside this grade of telescoping mechanism screw rod, and the outer sleeve of prime telescoping mechanism is enclosed within outside rear class telescoping mechanism.
The setting of outer sleeve, advantageously ensures that the relative stability of retractor devices at different levels, simultaneously, it is ensured that rectilinear movement, outer sleeve and spiral shell
It is female to rotate, translate together.
The outer sleeve overcoat organism outer sleeve of the utility model first order telescoping mechanism, it is ensured that outside first order telescoping mechanism
Sleeve the moving stability.
The utility model also includes tail level screw rod, and the tail level screw sleeve, should outside the screw rod of afterbody telescoping mechanism
Circular groove also is provided between tail level screw rod and the nut of afterbody telescoping mechanism, is filled with the circular groove before spheroid, afterbody
The nut of level telescoping mechanism drives rear class screw rod to stretch out or retract by spheroid.The parts such as video camera can be installed on tail level screw rod.
Can also be by tail level screw design into the form with telescoping mechanism screw rod synchronous axial system, i.e. the inner surface setting muscle of tail level screw rod,
Supporting groove is designed in the outer surface of afterbody telescoping mechanism.Tail level screw rod can also set outer sleeve, and the outer sleeve is tight
Paste tail level screw rod to set, the outer sleeve of afterbody telescoping mechanism is enclosed within outside the outer sleeve of tail level screw rod.
Further to reduce the power of drive mechanism, and equipment attrition is avoided, nut and the rear class of prime telescoping mechanism are stretched
Specific gap between the screw rod of contracting mechanism, is passed between prime telescoping mechanism nut and rear class telescoping mechanism screw rod by the spheroid filled
It is dynamic, it is to avoid the contact wear of nut and screw rod.
The circular groove is made up of two half slots, and two half slots are respectively positioned at the nut and rear class of prime telescoping mechanism
On the screw rod of telescoping mechanism.
For convenience of spheroid is installed in circular groove, the circular groove removes catch before being provided with moveable catch, filling spheroid,
Circular groove is sealed using catch after populated.
Preferably, the drive device includes motor and gear train, and the motor-driven gear group is rotated, the gear train
First order telescoping mechanism screw rod is driven to rotate.
The utility model also provides a kind of spiral expanding device, including drive mechanism including screw rod, nut, foot piece, described
Nut sleeve is on screw rod, and the foot piece is enclosed within outside the screw rod, is provided with circular groove, the circular groove and fills out between the nut and foot piece
Filled with spheroid；When flexible, the drive mechanism drives the screw rod to rotate, and when screw rod is rotated, nut is moved on screw rod, spiral shell
It is female to drive foot piece to stretch out or retract by spheroid, realize that two-stage is stretched.
The utility model realized and stretch orderlyly, make it in small space by the way of multiple coil cylinder is promoted step by step
It is interior that there are larger telescopic extensions, realize and the elongation for meeting demand is completed in the confined space, the utility model compact conformation,
Light weight, linkage telescopic step by step, meet the telescoping mechanism required in specific product application have compact conformation, small volume, can
The requirement of the length of demand is elongated in the confined space；Between the nut and screw rod of the adjacent two-stage telescoping mechanism of the utility model
Wolfram steel ball is filled, using wolfram steel ball the power of prime telescoping mechanism rear class telescoping mechanism is passed into, it is to avoid nut and screw rod
Between by directly contacting transmission power, reduce abrasion, reduce fault rate.The utility model is simple in construction, and fault rate is low, cost
It is low；Small volume, stable drive.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is the utility model top view.
In figure：1- first order screw rods；2- second level screw rod；3- third level screw rods；4- fourth stage screw rods；5- first order steel
Ball；6- second level steel ball；7- third level steel balls；8- first order nuts；9- second level nut；10- third level nuts；11- first
Level outer sleeve；12- second level outer sleeve；13- third level outer sleeves；14- fourth stage outer sleeves；15- body outer sleeves；16- teeth
Wheel group；17- fixes lid；18- muscle.
Embodiment
With reference to Fig. 1,2, the spiral expanding device shown in figure is flexible for level Four, and the spiral expanding device is included by motor
The drive mechanism that (not shown), gear train 11 are constituted, first order telescoping mechanism, second level telescoping mechanism, the third level stretch
Mechanism and fourth stage screw rod 4.First order telescoping mechanism includes first order screw rod 1, first order nut 8, first order outer sleeve 11, the
One-level nut 8 is enclosed within first order screw rod 1, and first order outer sleeve 11 is connected with first order nut 8, and first order outer sleeve 11 is enclosed within
It is coaxial with first order screw rod 1 outside first order screw rod 1.Second level telescoping mechanism include second level screw rod 2, second level nut 9,
Second level outer sleeve 12, second level nut 9 is enclosed within second level screw rod 2, and second level outer sleeve 12 is enclosed within outside second level screw rod 2,
It is coaxial with second level screw rod 2.Third level telescoping mechanism includes third level screw rod 3, third level nut 10, third level outer sleeve 13,
Third level nut 10 is enclosed within outside third level screw rod 3, and third level outer sleeve 13 is enclosed within outside third level screw rod 3, same with third level screw rod 3
Axle.
It can be seen that second level screw rod 2 is enclosed within outside first order screw rod 1, the first order coaxial with first order screw rod 1
Screw rod 1 is connected with second level screw rod 2 by muscle 18 and groove (not shown), and muscle 18 is arranged on the interior of second level screw rod 2
Surface, groove is opened in the outer surface of first order screw rod 1, the insertion groove of muscle 18, and so, first order screw rod can drive when rotating
Second level screw rod is rotated, but does not influence being axially moveable for second level screw rod；Third level screw rod 3 is enclosed within outside second level screw rod 2, with
Second level screw rod 2 is coaxial, and second level screw rod 2 is connected with third level screw rod 3 also by muscle and groove；Fourth stage screw rod 4 is enclosed within
It is coaxial with third level screw rod 3 outside third level screw rod 3, it is also by muscle and recessed between third level screw rod 3 and fourth stage screw rod 4
Groove is connected.It can be seen that first order screw rod, second level screw rod, third level screw rod, fourth stage screw rod are all cylindrical shape,
It is convenient nested.It should be noted that because fourth stage screw rod need not promote other screw rods to move again, so, third level screw rod
On be not provided with nut, therefore, third level screw rod can use the common cylindric body of rod to replace.
Fourth stage outer sleeve 14 is co-axially located at the outside of fourth stage screw rod 4, it can be seen that first order outer sleeve
11 are enclosed within outside second level outer sleeve 12, and second level outer sleeve 12 is enclosed within outside third level outer sleeve 13, third level outer sleeve 13
It is enclosed within outside fourth stage outer sleeve 14, the outside of first order outer sleeve 11 also covers organism outer sleeve 15, and body outer sleeve 15 is pacified
On fixed lid 17.For realize it is mobile more stablize, connected between adjacent outer sleeve also by muscle and groove, with the second level outside
Exemplified by sleeve and third level outer sleeve, the inner surface setting of second level outer sleeve has muscle, and the outer surface of third level outer sleeve is set
Groove.
As shown in figure 1, being provided with circular groove between first order nut 8 and second level screw rod 2, the general circular groove is by two semicircles
Groove is constituted, and one of half slot is located on first order nut 8, and another half slot is located on second level screw rod 2, is filled out in circular groove
First order steel ball 5 is filled, steel ball typically uses wolfram steel ball.Equally, also there is circular groove between second level nut 9 and third level screw rod 3, circle
Filling second level steel ball 6 in groove, also there is filling third level steel ball 7 in circular groove, circular groove between third level nut and fourth stage screw rod.
The utility model realizes flexible transmission by steel ball, can not be contacted between the nut and screw rod of adjacent expansion mechanism, reduces mill
Damage, the utility model is particularly suitable for use in the flexible of vertical direction, and required drive mechanism power is small, and stable transmission, fault rate is low.
During utility model works, motor-driven gear group 16 is rotated, and gear train 16 drives first order screw rod 1 to rotate.To
Overhang：The first order nut 8 being enclosed within first order screw rod 1 advances, and first order nut 8 promotes second by first order steel ball 5
Level screw rod 2 advances, and at the same time, second level screw rod 2 is rabbeted by muscle with first order screw rod 1, so, first order screw rod 1
Second level screw rod 2 is driven to rotate；Equally, second level screw rod 2 is rotated, the translation forward of second level nut 9, passes through second level steel ball 6
The translation forward of third level screw rod 3 is promoted, third level screw rod 3 is rabbeted by muscle with second level screw rod, so third level screw rod 3
Also rotate；Equally, third level nut promotes the translation forward of fourth stage screw rod 4 by third level steel ball 7.Motor is rotated backward
It can be achieved inwardly to shrink.So by way of level Four spiral-tube links propulsion step by step, realize it is Methodistic flexible, make its
There are larger telescopic extensions in small space.
Claims (10)
1. a kind of spiral expanding device, including drive mechanism, it is characterised in that：Also include some grades of telescoping mechanisms, the telescopic machine
Structure includes screw rod, nut, and the nut sleeve is on screw rod, and when screw rod is rotated, nut can be moved on screw rod；The driving machine
The screw rod of structure driving first order telescoping mechanism is rotated；The screw sleeve of rear class telescoping mechanism outside the screw rod of prime telescoping mechanism simultaneously
It is connected thereto, can be moved axially relatively between adjacent screws, rear class telescoping mechanism is driven when prime telescoping mechanism screw rod is rotated
Screw rod is rotated；It is provided between the nut of prime telescoping mechanism and the screw rod of rear class telescoping mechanism in circular groove, the circular groove and is filled with ball
Body, when stretching, the nut of prime telescoping mechanism drives rear class screw rod to stretch out or retract by spheroid.
2. spiral expanding device as claimed in claim 1, it is characterised in that：Rear class telescoping mechanism screw rod and prime telescoping mechanism
Screw rod is connected by the muscle of mutual cooperation, groove, and the muscle is arranged on the inner surface of rear class telescoping mechanism screw rod, and groove is set vertically
Put in the outer surface of prime telescoping mechanism screw rod, in the muscle insertion groove.
3. spiral expanding device as claimed in claim 1, it is characterised in that：The telescoping mechanism also includes outer sleeve, and this is outer
Sleeve is connected with nut, wherein, the outer sleeve of afterbody telescoping mechanism is enclosed within outside this grade of telescoping mechanism screw rod, prime telescopic machine
The outer sleeve of structure is enclosed within outside rear class telescoping mechanism.
4. spiral expanding device as claimed in claim 3, it is characterised in that：The outer sleeve overcoat of first order telescoping mechanism is organic
External sleeve.
5. spiral expanding device as claimed in claim 1, it is characterised in that：Also include tail level screw rod, the tail level screw sleeve
Outside the screw rod of afterbody telescoping mechanism, circular groove also is provided between tail level screw rod and the nut of afterbody telescoping mechanism,
Spheroid is filled with the circular groove, the nut of afterbody prime telescoping mechanism drives rear class screw rod to stretch out or retract by spheroid.
6. the spiral expanding device as described in claim 1-5 any claims, it is characterised in that：The spiral shell of prime telescoping mechanism
Specific gap between the female and screw rod of rear class telescoping mechanism.
7. the spiral expanding device as described in claim 1-5 any claims, it is characterised in that：The circular groove is divided into two
Half slot, two half slots are respectively on the nut of prime telescoping mechanism and the screw rod of rear class telescoping mechanism.
8. the spiral expanding device as described in claim 1-5 any claims, it is characterised in that：The circular groove is provided with can
Mobile catch.
9. the spiral expanding device as described in claim 1-5 any claims, it is characterised in that：The drive mechanism includes
Motor and gear train, the motor-driven gear group are rotated, and the gear train driving first order telescoping mechanism screw rod is rotated.
10. a kind of spiral expanding device, including drive mechanism, it is characterised in that：Also include screw rod, nut, foot piece, the nut
It is enclosed within screw rod, the foot piece is enclosed within outside the screw rod, is provided with circular groove, the circular groove and is filled between the nut and foot piece
Spheroid；When flexible, the drive mechanism drives the screw rod to rotate, and when screw rod is rotated, nut is moved on screw rod, and nut leads to
Crossing spheroid drives foot piece to stretch out or retract.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621480670.9U CN206320253U (en) | 2016-12-30 | 2016-12-30 | A kind of spiral expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621480670.9U CN206320253U (en) | 2016-12-30 | 2016-12-30 | A kind of spiral expanding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206320253U true CN206320253U (en) | 2017-07-11 |
Family
ID=59261991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621480670.9U Active CN206320253U (en) | 2016-12-30 | 2016-12-30 | A kind of spiral expanding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206320253U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523635A (en) * | 2016-12-30 | 2017-03-22 | 亿嘉和科技股份有限公司 | Spiral telescopic device |
| CN108408645A (en) * | 2017-11-09 | 2018-08-17 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of multistage synchronous lifting device based on carbon fiber cylinder |
| CN110953444A (en) * | 2019-11-21 | 2020-04-03 | 深圳市洲明科技股份有限公司 | Lifting device and LED display screen |
| CN113685523A (en) * | 2021-07-23 | 2021-11-23 | 西安空间无线电技术研究所 | Expansion mechanism capable of stretching and retracting back and forth |
-
2016
- 2016-12-30 CN CN201621480670.9U patent/CN206320253U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523635A (en) * | 2016-12-30 | 2017-03-22 | 亿嘉和科技股份有限公司 | Spiral telescopic device |
| CN108408645A (en) * | 2017-11-09 | 2018-08-17 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of multistage synchronous lifting device based on carbon fiber cylinder |
| CN108408645B (en) * | 2017-11-09 | 2019-08-20 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of multistage synchronous lifting device based on carbon fiber cylinder |
| CN110953444A (en) * | 2019-11-21 | 2020-04-03 | 深圳市洲明科技股份有限公司 | Lifting device and LED display screen |
| CN110953444B (en) * | 2019-11-21 | 2021-09-21 | 深圳市洲明科技股份有限公司 | Lifting device and LED display screen |
| CN113685523A (en) * | 2021-07-23 | 2021-11-23 | 西安空间无线电技术研究所 | Expansion mechanism capable of stretching and retracting back and forth |
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