CN110617307A - Lead screw and push rod mechanism and conversion method - Google Patents
Lead screw and push rod mechanism and conversion method Download PDFInfo
- Publication number
- CN110617307A CN110617307A CN201911040537.XA CN201911040537A CN110617307A CN 110617307 A CN110617307 A CN 110617307A CN 201911040537 A CN201911040537 A CN 201911040537A CN 110617307 A CN110617307 A CN 110617307A
- Authority
- CN
- China
- Prior art keywords
- lead screw
- screw
- nut
- servo motor
- push 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 title abstract description 12
- 230000007704 transition Effects 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims 1
- 230000009347 mechanical transmission Effects 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
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- 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
-
- 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
- F16H2025/2062—Arrangements for driving the actuator
Abstract
The invention relates to a lead screw and push rod mechanism and a conversion method. The screw transmission is mechanical transmission which realizes the conversion between rotary motion and linear motion by screwing a screw and a thread tooth surface, and the thread transmission is a transmission mode with the highest precision and realizes the conversion between the rotary motion and the linear motion. A lead screw push rod mechanism comprises: roating seat (1), transition sleeve (2), guide rail (3) and projecting shaft (5), transition sleeve passes through on M6X 20's the socket of hexagon socket head cap screw connection servo motor (9), the guide rail passes through M4X 16 on the socket of hexagon socket head cap screw fixation, projecting shaft and screw nut (10) fixed connection, screw nut passes through the nut and cooperates with screw thread drive's form with the lead screw, flange clamp on the roating seat is between transition sleeve and servo motor, the welding has the round pin axle in both sides, and with deep groove ball bearing (11) cooperation, the bearing is installed among the bearing frame. The invention is applied to equipment which needs high thrust and has high position precision requirement.
Description
The technical field is as follows:
the invention relates to a lead screw and push rod mechanism and a conversion method.
Background art:
the screw transmission is mechanical transmission which realizes the conversion of rotary motion and linear motion by screwing a screw and a thread tooth surface, the thread transmission is a transmission mode with the highest precision, the conversion between the rotary motion and the linear motion is realized, a set of telescopic lead screw structure is designed according to actual field experience and a mechanical theory, the structure replaces the use working condition of an air cylinder to a certain extent, the thrust of the telescopic lead screw structure is far larger than that of the air cylinder under the same overall dimension, the stroke can be freely designed, the telescopic lead screw structure can be used as a power source under certain occasions needing large thrust, the carrying capacity and the position precision of machinery are greatly improved, the telescopic lead screw structure can be suitable for an automatic lifting mechanism, a swing arm connecting rod mechanism and the like, and the perfect combination of precise positioning and load capacity is realized.
The invention content is as follows:
the invention aims to provide a lead screw and push rod mechanism and a conversion method.
The above purpose is realized by the following technical scheme:
a lead screw push rod mechanism comprises: the transition sleeve is connected with the sleeve of the servo motor through M6X 20 hexagon socket head cap screws, the guide rail is fixed on the sleeve through M4X 16 hexagon socket head cap screws, the projecting shaft is fixedly connected with a screw nut, the screw nut is matched with a screw in a thread transmission mode through a nut, a flange on the rotating seat is clamped between the transition sleeve and the servo motor, pin shafts are welded on two sides of the flange, the flange is matched with bearings, the bearings are installed in the bearing seats, and the bearing seats are fixed on the mounting seat through M4X 12 hexagon socket head cap screws.
The lead screw push rod mechanism, the tip and the fisheye joint fixed connection of projecting shaft, the mount pad reserve and have the mounting hole for install lead screw and servo motor output shaft pass through quincunx coupling joint, and install two skeleton sealing washer at the front end, compress tightly fixedly through preceding shrouding, preceding shrouding with the guide rail pass through M4 with 16 hexagon socket head cap screw and connect.
The conversion method of the screw rod and push rod mechanism comprises the following steps:
servo motor passes through the shaft coupling and is connected with the lead screw, and lead screw nut passes through screwed connection with the projecting shaft and fixes, and the lead screw drives the nut at the rotation in-process and realizes linear motion, prevents that the nut from rotating in the motion process, has the guide way on the projecting shaft to realize that circular motion converts high accuracy linear motion into.
The invention has the beneficial effects that:
1. compared with an air cylinder, the device has the advantage of higher thrust; meanwhile, the servo motor is easy to control the extending position of the lead screw, so that the purpose of accurate positioning is achieved.
Compared with other mechanical structures, the screw rod transmission is more accurate, the thread self-locking property can prevent the back-off, and the braking effect is achieved; the stroke can be adjusted, so that the device is convenient to use for multiple purposes, and the standardization degree is improved;
3. the invention realizes the conversion of the rotary displacement to the linear displacement by the classical mechanical principle of spiral transmission, and the servo motor controls the telescopic stroke and the propelling speed to achieve the predicted parameters and performance. The whole structure has good sealing performance and is suitable for various environments.
The invention replaces the use working condition of the cylinder to a certain extent, the thrust of the invention is far larger than that of the cylinder under the same overall dimension, the stroke can be freely designed, and the invention can be used as a power source under the occasions needing large thrust, thereby greatly improving the carrying capacity and position precision of the machinery, the mechanism can be suitable for an automatic lifting mechanism, a swing arm connecting rod mechanism and the like, and the perfect combination of precise positioning and load capacity is realized.
The servo motor is connected with the lead screw through the coupler, the lead screw nut is fixedly connected with the extension shaft through the screw, the lead screw drives the nut to move linearly in the rotating process, the nut is prevented from rotating in the moving process, and the extension shaft is provided with the guide groove. Thereby realizing the conversion of circular motion into high-precision linear motion.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a right side view of fig. 1.
The device comprises a rotary seat, a transition sleeve, a guide rail, a sleeve, a protruding shaft, a front sealing plate, a mounting seat, a bearing seat, a servo motor, a screw rod nut, a deep groove ball bearing, a bearing seat 9, a servo motor, a screw rod nut, a deep groove ball bearing, a fisheye joint, a plum-blossom-shaped coupler, a framework sealing ring and a support, wherein the rotary seat is 2, the transition sleeve is 3, the guide rail is 4.
The specific implementation mode is as follows:
example 1:
a lead screw push rod mechanism comprises: the rotary seat comprises a rotary seat 1, a transition sleeve 2, a guide rail 3 and an extension shaft 5, wherein the transition sleeve is connected with a sleeve of a servo motor 9 through an inner hexagonal screw M6 20, the guide rail is fixed on the sleeve through an inner hexagonal screw M4 16, the extension shaft is fixedly connected with a lead screw nut 10, the lead screw nut is matched with a lead screw in a thread transmission mode through a nut, a flange on the rotary seat is clamped between the transition sleeve and the servo motor, pin shafts are welded on two sides of the rotary seat and matched with a deep groove ball bearing 11, a bearing is installed in the bearing seat, and the bearing seat is fixed on a mounting seat through an inner hexagonal screw M4 12.
Example 2:
the screw-rod pusher mechanism according to embodiment 1, characterized in that: the end part of the extension shaft is fixedly connected with a fisheye joint 12, a mounting hole is reserved in the mounting base and used for mounting a lead screw to be connected with an output shaft of a servo motor through a quincunx coupling 13, two framework sealing rings 14 are mounted at the front end and are compressed and fixed through a front sealing plate, and the front sealing plate is connected with the guide rail through an inner hexagon screw of M4 & 16.
Example 3:
the method of switching the screw-pusher mechanism according to embodiments 1 to 2, characterized in that: the method comprises the following steps:
servo motor passes through the shaft coupling and is connected with the lead screw, and lead screw nut passes through screwed connection with the projecting shaft and fixes, and the lead screw drives the nut at the rotation in-process and realizes linear motion, prevents that the nut from rotating in the motion process, has the guide way on the projecting shaft to realize that circular motion converts high accuracy linear motion into.
Claims (3)
1. A lead screw push rod mechanism comprises: the method is characterized in that: roating seat, transition sleeve, guide rail and projecting shaft, characterized by: the transition sleeve is connected with a sleeve of a servo motor through an inner hexagon screw M6X 20, the guide rail is fixed on the sleeve through an inner hexagon screw M4X 16, the extension shaft is fixedly connected with the lead screw nut, the lead screw nut is matched with the lead screw in a thread transmission mode through the nut, a flange on the rotating seat is clamped between the transition sleeve and the servo motor, pin shafts are welded on two sides of the flange and are matched with the deep groove ball bearing, the bearing is installed in the bearing seat, and the bearing seat is fixed on the installation seat through an inner hexagon screw M4X 12.
2. The lead screw and push rod mechanism of claim 1, wherein: the end part of the extension shaft is fixedly connected with the fisheye joint, a mounting hole is reserved in the mounting base and used for mounting a lead screw to be connected with an output shaft of the servo motor through a quincunx coupler, two framework sealing rings are mounted at the front end of the mounting base and are compressed and fixed through a front sealing plate, and the front sealing plate is connected with the guide rail through an inner hexagon screw of M4-16.
3. A method of converting a screw-pusher mechanism according to claims 1-2, characterized in that: the method comprises the following steps:
servo motor passes through the shaft coupling and is connected with the lead screw, and lead screw nut passes through screwed connection with the projecting shaft and fixes, and the lead screw drives the nut at the rotation in-process and realizes linear motion, prevents that the nut from rotating in the motion process, has the guide way on the projecting shaft to realize that circular motion converts high accuracy linear motion into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911040537.XA CN110617307A (en) | 2019-10-29 | 2019-10-29 | Lead screw and push rod mechanism and conversion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911040537.XA CN110617307A (en) | 2019-10-29 | 2019-10-29 | Lead screw and push rod mechanism and conversion method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110617307A true CN110617307A (en) | 2019-12-27 |
Family
ID=68927186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911040537.XA Pending CN110617307A (en) | 2019-10-29 | 2019-10-29 | Lead screw and push rod mechanism and conversion method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110617307A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203416099U (en) * | 2013-09-02 | 2014-01-29 | 深圳市鸿栢科技实业有限公司 | Power transmission device |
| CN105375674A (en) * | 2015-11-10 | 2016-03-02 | 中国科学院长春光学精密机械与物理研究所 | Direct-driven precise motor displacement actuator |
| CN206517223U (en) * | 2016-12-16 | 2017-09-22 | 东北石油大学 | A kind of small-sized electric cylinder |
| CN211117420U (en) * | 2019-10-29 | 2020-07-28 | 哈尔滨联科包装机械有限公司 | Lead screw push rod mechanism |
-
2019
- 2019-10-29 CN CN201911040537.XA patent/CN110617307A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203416099U (en) * | 2013-09-02 | 2014-01-29 | 深圳市鸿栢科技实业有限公司 | Power transmission device |
| CN105375674A (en) * | 2015-11-10 | 2016-03-02 | 中国科学院长春光学精密机械与物理研究所 | Direct-driven precise motor displacement actuator |
| CN206517223U (en) * | 2016-12-16 | 2017-09-22 | 东北石油大学 | A kind of small-sized electric cylinder |
| CN211117420U (en) * | 2019-10-29 | 2020-07-28 | 哈尔滨联科包装机械有限公司 | Lead screw push rod mechanism |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191227 |
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| WD01 | Invention patent application deemed withdrawn after publication |