CN210798621U - Flexible transmission mechanism of lead screw - Google Patents
Flexible transmission mechanism of lead screw Download PDFInfo
- Publication number
- CN210798621U CN210798621U CN201921406532.XU CN201921406532U CN210798621U CN 210798621 U CN210798621 U CN 210798621U CN 201921406532 U CN201921406532 U CN 201921406532U CN 210798621 U CN210798621 U CN 210798621U
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- CN
- China
- Prior art keywords
- nut
- gear
- groove
- protrusion
- screw rod
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
- E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
- E05F15/622—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using screw-and-nut mechanisms
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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
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
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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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The utility model discloses a flexible drive mechanism of lead screw, including lead screw, nut and gear, the periphery of lead screw is located to the nut cover, there is the round hole at the center of gear, the periphery that the nut was located to the gear cover and with be equipped with the interlock structure between the nut, thereby the gear drives the rotatory drive lead screw back-and-forth movement of nut, thereby the interlock structure can circumference swing when making the lead screw back-and-forth movement. The utility model provides a flexible transmission mechanism of a screw rod, which can realize that the screw rod realizes the rotary motion to the linear motion through a nut in the process of gear rotation, and the screw rod can also realize the swing in a certain angle range through the nut without influencing the motion of other parts; the mechanism is compact and efficient, and transmission is stable.
Description
Technical Field
The utility model belongs to the machine-building field, in particular to flexible drive mechanism of lead screw.
Background
Nowadays, many technologies for developing mass-produced automobiles are developed and strived to improve passenger comfort, and as time goes on, more and more technologies for improving passenger comfort and convenience are developed and applied to mass-produced automobiles. In the market, the manual opening and closing of side door is realized through the stopper to general car, and the stopper generally comprises elements such as installing support, connecting pin, stopper member, stopper box, cushion socket. The general stopper rod piece is a flat object with a square section, two to three bulges are arranged on the stopper rod piece, one end of the stopper is connected with a side door, the other end of the stopper rod is connected with a vehicle body, and the stopper rod does not only do linear motion but also swings in the circumferential direction in the door opening process. Although the existing limiter is widely applied to various automobile factories due to the advantages of simplicity, practicality, reliability, low cost and the like, the following defects generally exist: (1) the electric opening of the vehicle door cannot be realized; (2) there are only two or three gears. If the electric driving is realized, the general push rod cannot solve the problem that the push rod swings in the circumferential direction in the linear motion process.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem that the screw rod flexible transmission mechanism is provided, which can realize that the screw rod realizes the rotation movement and the linear movement through the nut in the process of gear rotation, and the screw rod can also realize the swinging in a certain angle range through the nut simultaneously without influencing the movement of other parts; the mechanism is compact and efficient, transmission is stable, and the clamping cannot occur.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a flexible drive mechanism of lead screw, includes lead screw, nut and gear, the periphery of lead screw is located to the nut cover, there is the round hole at the center of gear, the periphery that the nut was located to the gear cover and with be equipped with the interlock structure between the nut, thereby the gear drives the rotatory drive lead screw back-and-forth movement of nut, thereby the interlock structure can circumferential direction swing when making the lead screw back-and-forth movement.
Further, the occlusion structure is specifically: one of the gear and the nut is provided with a bulge, the other is provided with a groove, and the tail end of the bulge is positioned in the groove.
The nut can be a ball nut, a groove along the moving direction of the screw rod is formed in the spherical surface of the ball nut, a protrusion extending towards the center is formed in the inner wall of the round hole of the gear, the protrusion is meshed with the groove, and the tail end of the protrusion is located in the groove.
Further speaking, the nut can be a ball nut, a protrusion is arranged on the spherical surface of the ball nut, a groove along the moving direction of the screw rod is arranged on the inner wall of the round hole of the gear, the protrusion is meshed with the groove, and the tail end of the protrusion is located in the groove.
Further, the nut can be a cylindrical nut, a groove is formed in the surface of the cylindrical nut along the moving direction of the screw rod, a protrusion extending towards the center is arranged on the inner wall of the circular hole of the gear, the protrusion is meshed with the groove, the tail end of the protrusion is located in the groove, and a gap is formed between the protrusion and the bottom surface of the groove.
Further, the nut can be a cylindrical nut, a protrusion is arranged on the surface of the cylindrical nut, a groove along the moving direction of the screw rod is formed in the inner wall of the round hole of the gear, the protrusion is meshed with the groove, the tail end of the protrusion is located in the groove, and a gap is formed between the protrusion and the bottom surface of the groove.
Further, the cross section of the protrusion is circular.
Further, the gear is a spur gear, a worm gear or a helical gear.
The utility model has the advantages that:
the utility model drives the nut to rotate through the driving gear so as to drive the lead screw to move back and forth, and the meshing structure is arranged between the gear and the nut, so that the lead screw can circumferentially swing in the front and back moving process, flexible transmission is realized, the transmission is stable, and jamming can not occur;
the utility model discloses can be applied to the electronic opening and closing of the side door of car, replace the stopper, and can realize hovering of car side door optional position.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of A1 in FIG. 1;
fig. 3 is an exploded view of the present invention;
fig. 4 is a sectional view (one embodiment) of the present invention showing the combination between the nut and the gear;
fig. 5 is a sectional view (third embodiment) of the present invention showing the combination between the nut and the gear;
the parts in the drawings are marked as follows:
the screw rod 1, the nut 2, the gear 3, the groove 4, the protrusion 5 and the gap 6.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Example (b): a flexible transmission mechanism of a screw rod is shown in figures 1-3 and comprises the screw rod 1, a nut 2 and a gear 3, wherein the nut is sleeved on the periphery of the screw rod, a round hole is formed in the center of the gear, the gear is sleeved on the periphery of the nut, an engagement structure is arranged between the gear and the nut, the gear drives the nut to rotate so as to drive the screw rod to move back and forth, and the engagement structure enables the screw rod to circumferentially swing when moving back and forth.
The occlusion structure specifically comprises: one of the gear and the nut is provided with a bulge 5, the other is provided with a groove 4, and the tail end of the bulge is positioned in the groove.
The utility model discloses one of the concrete embodiment: as shown in fig. 4, the nut is a ball nut, a groove is formed in the spherical surface of the ball nut along the moving direction of the screw rod, a protrusion extending towards the center is formed in the inner wall of the circular hole of the gear, the protrusion is engaged with the groove, and the tail end of the protrusion is located in the groove.
The second embodiment of the present invention: the nut is a ball nut, a protrusion is arranged on the spherical surface of the ball nut, a groove in the moving direction of the screw rod is formed in the inner wall of the round hole of the gear, the protrusion is meshed with the groove, and the tail end of the protrusion is located in the groove.
The third embodiment of the present invention: as shown in fig. 5, the nut is a cylindrical nut, a groove is formed in the surface of the cylindrical nut along the moving direction of the screw rod, a protrusion extending towards the center is formed in the inner wall of the circular hole of the gear, the protrusion is engaged with the groove, the tail end of the protrusion is located in the groove, and a gap 6 is formed between the protrusion and the bottom surface of the groove.
The fourth embodiment of the present invention: the nut is a cylindrical nut, the surface of the cylindrical nut is provided with a protrusion, the inner wall of the round hole of the gear is provided with a groove along the moving direction of the screw rod, the protrusion is meshed with the groove, the tail end of the protrusion is located in the groove, and a gap is formed between the protrusion and the bottom surface of the groove.
The cross section of the bulge is circular.
The gear is a straight gear, a worm gear or a helical gear.
The utility model discloses not only be applied to car side door electric drive unit, can also be applied to car tail-gate and turn over fields such as board, automatic door and window.
The utility model discloses a theory of operation or working process as follows:
the utility model discloses a thereby drive gear drives the rotatory drive lead screw back-and-forth movement of nut, and is equipped with the interlock structure between gear and the nut for the lead screw can the circumferential direction swing at the in-process that removes in the front and back, realizes flexible transmission, and the transmission is steady, and the card can not appear pausing.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the same principle as the present invention.
Claims (8)
1. The utility model provides a flexible drive mechanism of lead screw which characterized in that: the screw rod driving mechanism comprises a screw rod (1), a nut (2) and a gear (3), wherein the periphery of the screw rod is sleeved with the nut, a round hole is formed in the center of the gear, the periphery of the nut is sleeved with the gear, an engagement structure is arranged between the gear and the nut, the gear drives the nut to rotate so as to drive the screw rod to move back and forth, and the engagement structure can circumferentially swing when the screw rod moves back and forth.
2. The screw flexible transmission mechanism of claim 1, wherein: the occlusion structure specifically comprises: one of the gear and the nut is provided with a protrusion (5), the other is provided with a groove (4), and the tail end of the protrusion is positioned in the groove.
3. The screw flexibility transmission mechanism of claim 2, wherein: the nut is a ball nut, a groove along the moving direction of the screw rod is formed in the spherical surface of the ball nut, a protrusion extending towards the center is arranged on the inner wall of the round hole of the gear, the protrusion is meshed with the groove, and the tail end of the protrusion is located in the groove.
4. The screw flexibility transmission mechanism of claim 2, wherein: the nut is a ball nut, a protrusion is arranged on the spherical surface of the ball nut, a groove in the moving direction of the screw rod is formed in the inner wall of the round hole of the gear, the protrusion is meshed with the groove, and the tail end of the protrusion is located in the groove.
5. The screw flexibility transmission mechanism of claim 2, wherein: the nut is cylindrical, the surface of the cylindrical nut is provided with a groove along the moving direction of the screw rod, the inner wall of the round hole of the gear is provided with a bulge extending towards the center, the bulge is meshed with the groove, the tail end of the bulge is positioned in the groove, and a gap (6) is reserved between the bulge and the bottom surface of the groove.
6. The screw flexibility transmission mechanism of claim 2, wherein: the nut is a cylindrical nut, the surface of the cylindrical nut is provided with a protrusion, the inner wall of the round hole of the gear is provided with a groove along the moving direction of the screw rod, the protrusion is meshed with the groove, the tail end of the protrusion is located in the groove, and a gap is formed between the protrusion and the bottom surface of the groove.
7. The screw flexibility transmission mechanism of claim 2, wherein: the cross section of the bulge is circular.
8. The screw flexible transmission mechanism of claim 1, wherein: the gear is a straight gear, a worm gear or a helical gear.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921406532.XU CN210798621U (en) | 2019-08-28 | 2019-08-28 | Flexible transmission mechanism of lead screw |
| PCT/CN2020/085458 WO2021036289A1 (en) | 2019-08-28 | 2020-04-18 | Screw rod flexible transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921406532.XU CN210798621U (en) | 2019-08-28 | 2019-08-28 | Flexible transmission mechanism of lead screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210798621U true CN210798621U (en) | 2020-06-19 |
Family
ID=71239946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921406532.XU Active CN210798621U (en) | 2019-08-28 | 2019-08-28 | Flexible transmission mechanism of lead screw |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN210798621U (en) |
| WO (1) | WO2021036289A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530396A (en) * | 2021-07-05 | 2021-10-22 | 宁波华楷电子科技有限公司 | Electric tail gate stay bar assembly |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3984998A (en) * | 1975-09-12 | 1976-10-12 | General Motors Corporation | Energy absorbing coupling |
| DE10159037B4 (en) * | 2000-07-07 | 2009-04-09 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg | Adjustment device for motor vehicle seats |
| DE102012106196B3 (en) * | 2012-07-10 | 2014-05-15 | C. Rob. Hammerstein Gmbh & Co. Kg | Adjustment drive for a motor vehicle seat |
| CZ304676B6 (en) * | 2013-01-16 | 2014-08-27 | ÄŚVUT v Praze, Fakulta strojnĂ | Apparatus for opening and closing lid pivotally connected to frame, especially car boot lid |
| GB2521208A (en) * | 2013-12-13 | 2015-06-17 | Punk Couplings Ltd | Coupling |
| US10655378B2 (en) * | 2017-02-07 | 2020-05-19 | Magna Closures Inc. | Power side door actuator with rotating drive nut |
| DE102018212959A1 (en) * | 2018-08-02 | 2020-02-06 | Stabilus Gmbh | Swiveling spindle nut |
-
2019
- 2019-08-28 CN CN201921406532.XU patent/CN210798621U/en active Active
-
2020
- 2020-04-18 WO PCT/CN2020/085458 patent/WO2021036289A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530396A (en) * | 2021-07-05 | 2021-10-22 | 宁波华楷电子科技有限公司 | Electric tail gate stay bar assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021036289A1 (en) | 2021-03-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200713 Address after: Room 305, building 45, Zhengyi feicuiwan garden, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Zhu Dan Address before: 215300 room 4, Huayuan Road, Zhangpu Town, Kunshan, Suzhou, Jiangsu, 4 Patentee before: KUNSHAN RUIWEIJING AUTOMOTIVE TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230531 Address after: 241000 Commercial Building No. 66, East 2nd Floor, Longquan Community, Erba Town, Jiujiang District, Wuhu City, Anhui Province Patentee after: Wuhu Chudelai Auto Parts Manufacturing Partnership (L.P.) Address before: 215300 Room 305, building 45, Zhengyi feicuiwan garden, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: Zhu Dan |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230630 Address after: 241000 Rongyue Oriental Facade Room 29 # 193, Guandou Subdistrict, Jiujiang District, Wuhu, Anhui Province Patentee after: Wuhu Ruizhian Automobile Technology Co.,Ltd. Address before: 241000 Commercial Building No. 66, East 2nd Floor, Longquan Community, Erba Town, Jiujiang District, Wuhu City, Anhui Province Patentee before: Wuhu Chudelai Auto Parts Manufacturing Partnership (L.P.) |