CN202659832U - Linear driving mechanism capable of realizing limit angle rotation of rotating component - Google Patents
Linear driving mechanism capable of realizing limit angle rotation of rotating component Download PDFInfo
- Publication number
- CN202659832U CN202659832U CN 201220348261 CN201220348261U CN202659832U CN 202659832 U CN202659832 U CN 202659832U CN 201220348261 CN201220348261 CN 201220348261 CN 201220348261 U CN201220348261 U CN 201220348261U CN 202659832 U CN202659832 U CN 202659832U
- Authority
- CN
- China
- Prior art keywords
- straight line
- screw
- driving mechanism
- rotary member
- connecting rod
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a linear driving mechanism capable of realizing limit angle rotation of a rotating component. The linear driving mechanism is characterized by comprising a screw rod, a screw nut arranged on the screw rod, a linear movement pair and a connecting rod, wherein the linear movement pair consists of supporting components arranged at the two ends of the screw rod; the end, driven by the linear movement width, of the connecting rod is connected with the screw nut on the linear movement width; and the other end of the connecting rod is combined with the rotating component. Under a constraint condition, a target component has only one rotation freedom degree.
Description
Technical field
The utility model relates to a kind of rotating drive that is mainly used in big-and-middle diameter rotary member, and its suitable slewing area is less than 90 degree.
Background technique
The straight line driving mechanism that the rotary member limited angle rotates is applicable to the rotating drive of big-and-middle diameter rotary member.
The worm and gear driving mode is generally adopted in the rotation of the limited angle of big-and-middle diameter member of the prior art, and turbine can be configuration, also can make the fan-shaped gear ring that is slightly larger than rotation angle, rotates by turbine width of cloth driving component.Also can replace worm gear drive with pinion and rack or pin tooth transmission.Its shortcoming is that the big-and-middle diameter high-precision turbine width of cloth or gear involve great expense, if adopt fan-shaped gear ring owing to be not complete wheel body, produces easily distortion.Pinion and rack or pin tooth transmission application are less, and its cost can decrease with respect to worm gear pair.
The utility model cost is estimated to reduce 1--2 the order of magnitude than existing structure, and structure stability is good simultaneously.
Summary of the invention
The purpose of this utility model provide for existing deficiency in the above-mentioned prior art just a kind of have simple in structure, cost is low, stable performance can realize the straight line driving mechanism that the rotary member limited angle rotates.
Theme mentality of designing of the present utility model is to adopt the straight line motion width of cloth to move along rotary member pseudo-tangent line direction, be connected with member by connecting rod, the orientation of connecting rod one end will be by the straight line motion location positioning, the other end position is then jointly determined with the member pivotal position, is belonged to a kind of based on the coordinated movement of various economic factors of geometrical boundary constraint conditio.
Member in the utility model is the target that mechanism drives, and only has the one dimension degrees of freedom that rotatablely moves.It can by the constraint of central shaft system, also can be retrained by ring-shaped guide rail.
Specifically, the straight line driving mechanism that can realize that the rotary member limited angle rotates of the present utility model comprises by leading screw, is installed in the screw on the leading screw and is arranged on the straight line motion width of cloth that the supporting element at leading screw two ends forms, by the screw connection of an end on the straight line motion width of cloth, the connecting rod that the other end is combined with rotary member of straight line motion width of cloth driving.
Leading screw in the composition straight line motion pair described in the utility model generally adopts ball screw, because the constraint of connecting rod, screw can't rotate, and when leading screw rotated, screw can only be done straight line motion along leading screw.If consider the rigidity of mechanism, screw also can be fixed on the slide block of linear rail.The position of screw and the corner of rotary member are one to one, but corner and displacement the relationship between quantities are nonlinear, because along accurate arranged tangential, its relation should be approximately linear.
Connecting rod one end is connected with screw, and the other end is combined with rotary member, is the multi-freedom degree state on the rod surface.The end position that connecting rod is connected with screw is determined by the screw displacement, can rotate around this point; The other end is combined with rotary member, so this position must be the intersection point of the radius of tie point on connecting rod end points and the rotary member.Its rotation angle also just determines thus, that is to say, is that the geometric boundary condition by mechanism has determined corner displacement.
Screw drivening rod one end on the straight line motion width of cloth is to a certain assigned position, the position of another end points must be the intersection point of the radius of tie point on connecting rod end points and the rotary member, this end points will move to corresponding point on the track of component circumference motion, namely realize the rotation of the several angle of rotary member by the straight line motion of the straight line width of cloth.
Working principle of the present utility model and beneficial effect are as follows:
Because connecting rod one end is connected with screw, the other end is combined with rotary member, is the multi-freedom degree state on the rod surface.The hinged end position of connecting rod and screw is determined by the screw displacement, can rotate around this point; The other end is combined with rotary member, so this position must be the intersection point of the radius of tie point on connecting rod end points and the rotary member.Its rotation angle also just determines thus, is that the geometric boundary condition by mechanism has determined corner displacement.That is to say, realized the rotation of the several angle of rotary member by the straight line motion of the straight line width of cloth.
Its beneficial effect shows and replaces fan-shaped worm and gear driving mode, gear rack transmission or the pin tooth kind of drive in the prior art.The big-and-middle diameter high-precision turbine width of cloth, gear and pin tooth transmission involve great expense, and simultaneously because fan-shaped gear ring is not complete wheel body, produce easily distortion.And the utility model cost is estimated than the remarkable reduction of existing structure, and structure stability is good simultaneously.
Description of drawings
Fig. 1 is the plan view of structure principle chart of the present utility model.
Fig. 2 is the side view of structure principle chart of the present utility model.
Embodiment
The utility model is further described below with reference to example (accompanying drawing).
As shown in Figure 1 and Figure 2, the straight line driving mechanism that can realize that the rotary member limited angle rotates of the present utility model comprise by the screw 4 on straight line motion 1, one end and the straight line motion 1 be connected, the connecting rod 2 of the other end and rotary member 3 combinations; Rotary member 3 under constraint conditio, only has the one-dimensional rotation degrees of freedom as driving target.Screw drive link one end on the straight line motion width of cloth is to a certain assigned position like this, and the position of another end points must be the intersection point of the radius of tie point on connecting rod end points and the rotary member, and this end points will move to the point of correspondence on the track of component circumference motion.In conjunction with legend, when namely the straight line motion width of cloth was positioned at the A1 point, the rotary member point was positioned at the B1 point; When the straight line motion width of cloth was positioned at the A2 point, the rotary member point was positioned at the B2 point; When the straight line motion width of cloth was positioned at the A3 point, the rotary member point was positioned at the B3 point, had namely realized the rotation from the B1 point to B3 point several angle of rotary member by the straight line motion of the straight line width of cloth.
The straight line motion pair 1 of mechanism of the present utility model is comprised of the screw that is installed on the ball screw, and screw can only be done straight line motion, considers the rigidity of mechanism, and screw also can be fixed on the slide block 5 of linear rail.
Claims (3)
1. the straight line driving mechanism that can realize that the rotary member limited angle rotates, it is characterized in that: described straight line driving mechanism comprises by leading screw, is installed in the screw on the leading screw and is arranged on the straight line motion width of cloth that the supporting element at leading screw two ends forms, the screw connection of an end on the straight line motion width of cloth, the connecting rod that the other end is combined with rotary member that are driven by the straight line motion width of cloth.
2. the straight line driving mechanism that can realize that the rotary member limited angle rotates according to claim 1, it is characterized in that: the leading screw in the described composition straight line motion pair is ball screw.
3. the straight line driving mechanism that can realize that the rotary member limited angle rotates according to claim 1, it is characterized in that: the screw in the described composition straight line motion pair is fixed on the slide block of linear rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220348261 CN202659832U (en) | 2012-07-18 | 2012-07-18 | Linear driving mechanism capable of realizing limit angle rotation of rotating component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220348261 CN202659832U (en) | 2012-07-18 | 2012-07-18 | Linear driving mechanism capable of realizing limit angle rotation of rotating component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659832U true CN202659832U (en) | 2013-01-09 |
Family
ID=47454741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220348261 Expired - Lifetime CN202659832U (en) | 2012-07-18 | 2012-07-18 | Linear driving mechanism capable of realizing limit angle rotation of rotating component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659832U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748441A (en) * | 2012-07-18 | 2012-10-24 | 郑州机械研究所 | Linear driving mechanism capable of achieving limited angle rotation of rotating component |
| CN103822836A (en) * | 2014-02-28 | 2014-05-28 | 西北工业大学 | Test device for measuring durability of torsion bar of airplane horizontal-tail servo-actuated covering cap |
| CN104897391A (en) * | 2015-06-19 | 2015-09-09 | 中国航空工业集团公司西安飞机设计研究所 | Mechanism test platform |
-
2012
- 2012-07-18 CN CN 201220348261 patent/CN202659832U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748441A (en) * | 2012-07-18 | 2012-10-24 | 郑州机械研究所 | Linear driving mechanism capable of achieving limited angle rotation of rotating component |
| CN103822836A (en) * | 2014-02-28 | 2014-05-28 | 西北工业大学 | Test device for measuring durability of torsion bar of airplane horizontal-tail servo-actuated covering cap |
| CN104897391A (en) * | 2015-06-19 | 2015-09-09 | 中国航空工业集团公司西安飞机设计研究所 | Mechanism test platform |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100413656C (en) | Spacial non-symmetric two freedom rotary parallel mechanism | |
| CN101839385B (en) | Complex pipeline moving rat | |
| CN202659832U (en) | Linear driving mechanism capable of realizing limit angle rotation of rotating component | |
| CN106092595B (en) | A kind of vehicle safety preservation ＆ testing device | |
| CN105171728A (en) | Hexagonal pyramid type six-freedom-degree parallel mechanism | |
| CN103171612A (en) | Steer-by-wire vehicle steering wheel limit mechanism | |
| CN205064734U (en) | Circumference moving mechanism | |
| CN208264341U (en) | A kind of chassis steering mechanism of transfer robot | |
| CN201300417Y (en) | Four-freedom pneumatic manipulator | |
| CN206327905U (en) | A kind of Pneumatic pipe commutator and Pneumatic logistic induction system | |
| CN201898206U (en) | Electrically-controlled antenna driving device | |
| CN202378048U (en) | Spatial five-mobility drilling robot mechanism | |
| CN103171613A (en) | Vehicle steer-by-wire mode switching limit device | |
| CN201728417U (en) | Variable width disc shearing machine | |
| CN205417021U (en) | Novel gear train structure | |
| CN204197867U (en) | Swinging transfer machine | |
| CN102748441A (en) | Linear driving mechanism capable of achieving limited angle rotation of rotating component | |
| CN207997704U (en) | A kind of display board that education and instruction uses | |
| CN203697861U (en) | Wheel set structure suitable for industrial vehicle | |
| CN202137763U (en) | Rotary swinging robotic arm | |
| CN214168314U (en) | Large-transverse-moving module for warp knitting machine | |
| CN203526978U (en) | Variable-angle bearing platform driven by two screws | |
| CN103158755A (en) | Limiting mechanism for steering wheel of motor vehicle | |
| CN201175914Y (en) | Branched chain nested three-freedom movable platform continuously rotating parallel robot mechanism | |
| CN103206522A (en) | Decentralizing device for speed reducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Fengyang high tech Industrial Development Zone, Henan province Zhengzhou city 450001 Street No. 10 Patentee after: ZHENGZHOU RESEARCH INSTITUTE OF MECHANICAL ENGINEERING Co.,Ltd. Address before: Fengyang high tech Industrial Development Zone, Henan province Zhengzhou city 450001 Street No. 10 Patentee before: Zhengzhou Research Institute of Mechanical Engineering |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |