CN202147168U - Dual-screw drive device with synchronous protection function - Google Patents
Dual-screw drive device with synchronous protection function Download PDFInfo
- Publication number
- CN202147168U CN202147168U CN201120238616U CN201120238616U CN202147168U CN 202147168 U CN202147168 U CN 202147168U CN 201120238616 U CN201120238616 U CN 201120238616U CN 201120238616 U CN201120238616 U CN 201120238616U CN 202147168 U CN202147168 U CN 202147168U
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- worm
- guide rail
- output shaft
- bevel gear
- right guide
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Abstract
The utility model discloses a dual-screw drive device with a synchronous protection function, which is arranged on an inverse-U-shaped machine frame; the device disclosed by The utility model comprises a motor, a torque limiter, a bevel gear steering case, two rigid couplers, a left worm gear-worm lifter, a right worm gear-worm lifter, and a driven component, wherein the motor is arranged on the top of the centre of a machine frame connecting beam; the torque limiter is arranged on the output shaft of the motor and comprises an elastic coupler and a sensor; the sensor is connected with a motor control mechanism; the bevel gear steering case is arranged on the machine frame connecting beam; the input end of the bevel gear steering case is connected with the output end of the torque limiter; the bevel gear steering case is provided with a left output shaft and a right output shaft; the two rigid couplers are mounted on the left output shaft and the right output shaft of the bevel gear steering case; the left worm gear-worm lifter and the right worm gear-worm lifter are arranged on two lateral frames of the machine frame; the lateral frames are provided with a left guide rail and a right guide rail and comprise worm gears, worms and screws; two worms are connected with the two rigid couplers; one end of each of the screws is matched with the worm gear; the driven component is arranged on the left guide rail and the right guide rail in a bridging manner; two ends of the drive component are respectively provided with nuts which are matched with the screws; and the driven component is driven by the nuts to linearly move along the left guide rail and the right guide rail. According to the device disclosed by The utility model, equipment fault and safety accidents caused by asynchronous left and right screws, poor lubrication and overload are solved.
Description
Technical field
The utility model relates to machine tool, particularly a kind ofly is with synchronous protective double lead drive unit.
Background technology
The double lead drive unit is widely used in lathe, chemical industry, engineering machinery, metallurgy, building and logistic storage field, and its structure is comparatively simple, and installing space is little, and cost is lower.But because driven element weight is bigger, if the mismachining tolerance of left and right sides screw mandrel is bigger, perhaps the wearing and tearing of the copper nut of screw mandrel are more serious; Left and right sides screw mandrel will produce asynchronous in the driven element moving process, can cause the wearing and tearing of left and right sides screw mandrel discontinuity, quickening copper nut, and driven element moves not steady; Influence screw mandrel service life, if the asynchronous allowed band that surpassed of left and right sides screw mandrel, or incidents such as insufficient lubrication and overload would appear; Just might cause the fracture of screw mandrel or driven element, damage; Equipment can't run well, and causes economic loss, even causes security incident.
Summary of the invention
The purpose of the utility model is to design a kind of synchronous protective double lead drive unit of being with; Solve in the double lead driving process; Because asynchronous, the insufficient lubrication of left and right sides screw mandrel and equipment fault and security incident that overload caused improve operation stability of equipment and reliability.
For achieving the above object, the technical scheme of the utility model is:
A kind ofly be with synchronous protective double lead drive unit, be arranged on the frame, this frame is a font; It comprises, a motor is arranged at frame tie-beam central top; One limiter of moment is arranged at motor output shaft, and it comprises a yielding coupling and sensor; This sensor electrically connects motor control mechanism; One bevel gear steering box is arranged on the frame tie-beam, and its input is connected in the output of limiter of moment, and is provided with left and right output shaft; Two positive couplings are installed on respectively on the left and right output shaft of bevel gear steering box; Left and right worm and gear lift is arranged on the frame side frames, establishes left and right guide rail on the side frames respectively, and this lift comprises worm and gear, screw mandrel respectively; Two worm screws are connected with two positive couplings respectively, and along left and right guide rail setting, screw mandrel one end cooperates with worm gear two screw mandrels respectively; One driven element, across the left and right guide rail that is arranged on the frame side frames, the driven element two ends are provided with respectively and the screw mandrel nut engaged, and drive the left and right guide rail moving linearly in lower edge at nut.
Described nut and left and right guide rail are established lubricant passage way.
Described left and right worm and gear lead screw of elevator and the left and right guide rail guard shield of setting up defences.
The utility model double lead drive unit; Drive driven element along the guide rail moving linearly by motor through limiter of moment, bevel gear steering box, positive coupling, worm and gear lift, nut; This limiter of moment comprises a yielding coupling and sensor; Have certain turning round to elasticity, can absorbed oscillation, limiter of moment one end is connected with motor; The other end is connected with bevel gear steering box power shaft; Bevel gear steering box left and right output shaft is connected with an end of two positive couplings respectively, and the two positive coupling other ends are connected with left and right sides worm and gear lift power shaft respectively, and positive coupling guarantees that the corner of left and right sides worm and gear lift input is consistent; Worm and gear lift bottom screw mandrel rotates; Drive nut along the screw mandrel axially-movable; The driven element that the nut drive is attached thereto is along the left and right rail moving linearly; Because screw mandrel only receives axial force, not bearing radial force and moment of flexure are so can improve screw mandrel transmission accuracy, lifting weight and service life.
Left and right sides screw mandrel is asynchronous when occurring, insufficient lubrication and when overload, and left and right sides screw mandrel moment of torsion increases, thereby the moment of torsion that causes the limiter of moment transmission increases thereupon; When its moment of torsion increased above the setting slipping torque, limiter of moment skidded, and the shift(ing) ring of limiter of moment moves axially; Touch sensor, make it to export a control signal, can be used to cut off power source; Worm and gear in the employed worm and gear lift of this device has auto-lock function simultaneously, and auto-lock function is also arranged between the screw mandrel of worm and gear lift, the nut, after cutting off power source; System is transfixion immediately, thereby avoids device damage and security incident takes place.
The utility model has the advantages that:
1) limiter of moment is gone in series connection in the double lead drive unit of the utility model, and when asynchronous, insufficient lubrication of screw mandrel and overload, left and right sides screw mandrel moment of torsion increases when the left and right sides; Thereby cause that the moment of torsion that limiter of moment transmits increases; When the limiter of moment moment of torsion increased above the setting slipping torque, limiter of moment skidded, control signal of cutting off power source of limiter of moment output; System is transfixion immediately, thereby avoids device damage and security incident takes place.
2) two positive couplings of parallel connection guarantee that the corner of left and right sides worm and gear lift input is consistent in the double lead drive unit of the utility model.
3) be provided with guide rail by being driven both sides, the worm and gear lead screw of elevator only receives axial force, and not bearing radial force and moment of flexure are so can improve screw mandrel transmission accuracy, lifting weight and service life.
Description of drawings
Fig. 1 is the structural front view of the utility model one embodiment.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
The specific embodiment
Referring to Fig. 1～Fig. 3, the utility model be with synchronous protective double lead drive unit, be arranged on the frame 1, this frame is a font; It comprises, a motor 2 has the alternating current generator of reductor, and motor 2 is arranged at frame 1 tie-beam 101 central top; One limiter of moment 3 is arranged at motor 2 output shafts, and it comprises a yielding coupling and sensor; This sensor electrically connects motor control mechanism; One bevel gear steering box 4 is arranged on the frame tie-beam 101, and its input is connected in the output of limiter of moment 3, and is provided with left and right output shaft; Two positive couplings 5,5 ' are installed on respectively on the left and right output shaft of bevel gear steering box; Left and right worm and gear lift 6,6 ' is arranged on the frame side frames 102,103, establishes left and right guide rail 7,7 ' on the side frames 102,103 respectively, and this lift comprises worm and gear 61,61 ', screw mandrel 62,62 ' respectively; Two worm screws are connected with two positive couplings 5,5 ' respectively, and two screw mandrels 62,62 ' are provided with along left and right guide rail 7,7 ' respectively, and screw mandrel 62,62 ' one end cooperate with worm gear; One driven element 8; Across the left and right guide rail 7,7 ' that is arranged on the frame side frames 102,103; Driven element 8 two ends are provided with respectively and screw mandrel 62,62 ' nut engaged 9,9 ', and drive the left and right guide rail in lower edge 7,7 ' moving linearly at nut 9,9 '.
The utility model limiter of moment comprises a yielding coupling and sensor; Have certain turning round to elasticity, can absorbed oscillation, after the bevel gear steering box slows down; Be connected with an end of two positive couplings respectively through bevel gear steering box two output shafts; Positive coupling can guarantee that the corner that transmit on both sides is consistent, and the other end of two positive couplings is connected with left and right worm and gear lift respectively, after the worm and gear in left and right worm and gear lift slows down; Left and right worm and gear lift lower end screw mandrel is exported one respectively and is rotatablely moved; Drive nut along the screw mandrel axially-movable, nut is fixedly connected with driven element, drives driven element along left and right guide rail moving linearly.
For further the reliability bevel gear steering box and the left and right worm and gear lift of raising system need regular grease up; Nut and left and right guide rail are established lubricant passage way.
When operating mode is abominable, left and right worm and gear lead screw of elevator and the left and right guide rail guard shield of setting up defences.
Claims (3)
1. be with synchronous protective double lead drive unit for one kind, be arranged on the frame, this frame is a font;
It is characterized in that, comprise,
One motor is arranged at frame tie-beam central top;
One limiter of moment is arranged at motor output shaft, and it comprises a yielding coupling and sensor; This sensor electrically connects motor control mechanism;
One bevel gear steering box is arranged on the frame tie-beam, and its input is connected in the output of limiter of moment, and is provided with left and right output shaft;
Two positive couplings are installed on respectively on the left and right output shaft of bevel gear steering box;
Left and right worm and gear lift is arranged on the frame side frames, establishes left and right guide rail on the side frames respectively, and this lift comprises worm and gear, screw mandrel respectively; Two worm screws are connected with two positive couplings respectively, and along left and right guide rail setting, screw mandrel one end cooperates with worm gear two screw mandrels respectively;
One driven element, across the left and right guide rail that is arranged on the frame side frames, the driven element two ends are provided with respectively and the screw mandrel nut engaged, and drive the left and right guide rail moving linearly in lower edge at nut.
2. as claimed in claim 1ly be with synchronous protective double lead drive unit, it is characterized in that described nut and left and right guide rail are established lubricant passage way.
3. as claimed in claim 1ly be with synchronous protective double lead drive unit, it is characterized in that, described left and right worm and gear lead screw of elevator and the left and right guide rail guard shield of setting up defences.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120238616U CN202147168U (en) | 2011-07-07 | 2011-07-07 | Dual-screw drive device with synchronous protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120238616U CN202147168U (en) | 2011-07-07 | 2011-07-07 | Dual-screw drive device with synchronous protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202147168U true CN202147168U (en) | 2012-02-22 |
Family
ID=45588243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120238616U Expired - Lifetime CN202147168U (en) | 2011-07-07 | 2011-07-07 | Dual-screw drive device with synchronous protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202147168U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294615A (en) * | 2011-07-07 | 2011-12-28 | 上海三一精机有限公司 | Dual-screw rod driving device with synchronous protection |
| CN104029072A (en) * | 2014-06-12 | 2014-09-10 | 邓立伟 | Lathe parallel-connected synchronous motion mechanism |
| CN104817045A (en) * | 2015-03-27 | 2015-08-05 | 大连橡胶塑料机械股份有限公司 | Synchronous lifting device |
| CN105398765A (en) * | 2015-12-16 | 2016-03-16 | 嵊州市西格玛科技有限公司 | Wafer mounting and lifting conveying device of graphite boat |
| CN109577474A (en) * | 2017-09-29 | 2019-04-05 | 胡期星 | A kind of foldable multifunctional balcony |
| CN112945589A (en) * | 2021-01-28 | 2021-06-11 | 中车长春轨道客车股份有限公司 | Test bed counter-force crossbeam lifting positioning device |
-
2011
- 2011-07-07 CN CN201120238616U patent/CN202147168U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294615A (en) * | 2011-07-07 | 2011-12-28 | 上海三一精机有限公司 | Dual-screw rod driving device with synchronous protection |
| CN104029072A (en) * | 2014-06-12 | 2014-09-10 | 邓立伟 | Lathe parallel-connected synchronous motion mechanism |
| CN104029072B (en) * | 2014-06-12 | 2016-03-16 | 邓立伟 | Lathe synchronism mechanism in parallel |
| CN104817045A (en) * | 2015-03-27 | 2015-08-05 | 大连橡胶塑料机械股份有限公司 | Synchronous lifting device |
| CN105398765A (en) * | 2015-12-16 | 2016-03-16 | 嵊州市西格玛科技有限公司 | Wafer mounting and lifting conveying device of graphite boat |
| CN105398765B (en) * | 2015-12-16 | 2019-03-12 | 嵊州市西格玛科技有限公司 | A kind of load lifting transmission device of graphite boat |
| CN109577474A (en) * | 2017-09-29 | 2019-04-05 | 胡期星 | A kind of foldable multifunctional balcony |
| CN112945589A (en) * | 2021-01-28 | 2021-06-11 | 中车长春轨道客车股份有限公司 | Test bed counter-force crossbeam lifting positioning device |
| WO2022160855A1 (en) * | 2021-01-28 | 2022-08-04 | 中车长春轨道客车股份有限公司 | Counter-force crossbeam raising/lowering and positioning apparatus for test stand |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120222 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |