CN201250944Y - Limit worm-gear case actuating mechanism with adjusted angle - Google Patents
Limit worm-gear case actuating mechanism with adjusted angle Download PDFInfo
- Publication number
- CN201250944Y CN201250944Y CNU2008201341836U CN200820134183U CN201250944Y CN 201250944 Y CN201250944 Y CN 201250944Y CN U2008201341836 U CNU2008201341836 U CN U2008201341836U CN 200820134183 U CN200820134183 U CN 200820134183U CN 201250944 Y CN201250944 Y CN 201250944Y
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- Prior art keywords
- worm
- worm gear
- worm screw
- nut
- gear case
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Abstract
The utility model discloses a limit worm-gear case actuating mechanism with adjusted angle, which comprises a worm gear and a worm which are arranged in a case body, the upper part of the case body is connected with a case cover, the worm gear is of a complete circumference, one end of the worm is provided with an external spline running nut, an angel fixed nut and a front sliding bearing, the external spline running nut is connected on the worm through a thread, the angel fixed nut is fixed at a certain axial position of the worm through a rotating-preventing pin, the other end of the worm is provided with a ball thrust bearing, a rear sliding bearing and a handwheel, and the box body is provided with an internal spline limit cover which is matched with the external spline running nut in a spline way. Compared with the prior art, the utility model has the advantages of larger range angel adjustable limitation, low cost and good integral sealing, and is suitable for driving valves, air doors, baffles, and the like.
Description
Technical field
The utility model relates to a kind of actuator, and what be specifically related to is to be used for the spacing Worm gear case of the adjustable angle actuator that valve, air door, baffle plate etc. drive usefulness.
Background technique
Worm gear case actuator is widely used in occasions such as driving valve, air door, baffle plate.Traditional the spacing of part revolution Worm gear case actuator is to adopt bolt or double-screw bolt to realize in the side that two limit positions withstand worm sector, can only realize that generally 90 ° angle is spacing; Two rolling bearing supportings are adopted at the worm screw two ends of tradition Worm gear case actuator, and it is big to take up room, the cost height; And owing to there is not the sealing protection structure, environment uses down in the open.
Summary of the invention
The purpose of this utility model is for overcoming the deficiency of existing Worm gear case actuator, provide a kind of can be spacing in wider adjustable angle, low cost, the spacing Worm gear case of the adjustable angle of complete machine excellent sealing actuator.
The purpose of this utility model is achieved through the following technical solutions: the spacing Worm gear case of adjustable angle actuator comprises worm gear and the worm screw that is positioned at box house, described casing top is connected with case lid, described worm gear is a full circumferences shape, the end of described worm screw is provided with the external splines stroke nut by being threaded on it, decide angle nut and front slide bearing by what stop pin was fixed in the worm screw axial position, the other end is provided with thrust ball bearing, back sliding bearing and handwheel, described casing are provided with the internal spline limited cover that forms spline fitted with the external splines stroke nut; The position up and down of two ends of described worm screw and described worm gear is provided with O type circle; The end of described worm screw is provided with oil sealing.
Compared with prior art, the beneficial effects of the utility model are:
(1) because worm gear is a full circumferences shape, the end of worm screw is provided with the external splines stroke nut, casing is provided with the internal spline limited cover that cooperates with the external splines stroke nut, decides the different axial positions of angle nut on worm screw by adjusting, and actuator has realized the adjustment of spacing angle.
(2) owing on worm screw, be provided with two sliding bearings and thrust ball bearing combination, sliding bearing has born the radial force of worm screw, thrust ball bearing has born the end thrust of worm screw, and than two rolling bearings that common Worm gear case actuator adopts, the utility model has been saved space and cost.
(3) owing to position about worm screw two ends and worm gear all is provided with the O type circle of sealing usefulness, and also be provided with oil sealing, thereby the utlity model has good sealing protection effect at the end of worm screw.
Description of drawings:
Fig. 1 is the structure plan view (containing part sectioned view) of the utility model example;
Fig. 2 is the sectional drawing of structure shown in Figure 1.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
As depicted in figs. 1 and 2, the utility model comprise case lid 1, casing 2, worm gear 3, worm screw 4, internal spline limited cover 5, decide angle nut 6, parts such as stop pin 7, bolt 8, limited cover O shape circle 9, external splines stroke nut 10, front slide bearing 11, back sliding bearing 12, thrust ball bearing 13, end ring 14, bearing air cover 15, bearing air cover O shape circle 16, oil sealing 17, handwheel 18, case lid O shape circle 19, worm gear O shape circle 20.
Described casing 2 inside are provided with worm gear 3 and worm screw 4, and described casing 2 tops are connected with case lid 1; Described worm gear 3 is a full circumferences shape, the end of described worm screw 4 is provided with by the external splines stroke nut 10 on it of being threaded, by what stop pin 7 was fixed in worm screw 4 a certain axial positions decides angle nut 6 and front slide bearing 11, the other end is provided with thrust ball bearing 13, back sliding bearing 12 and the handwheel of being pushed down by end ring 14 18, described internal spline limited cover 5 is fixedlyed connected with casing 2 by bolt 8, and the external splines of the internal spline of internal spline limited cover 5 and external splines stroke nut 10 forms spline fitted; The two ends of described worm screw 4 are respectively arranged with bearing air cover O shape circle 16 and limited cover O shape circle 9, and the position up and down of described worm gear 3 is provided with case lid O shape circle 19 and worm gear O shape circle 20; The end of described worm screw 4 is provided with the bearing air cover 15 that has assembled oil sealing 17.
Referring to Fig. 1, the spacing Worm gear case of adjustable angle this moment actuator is in fully open position, and when 18 rotations of operation handwheel, worm screw 4 is correspondingly rotation under the supporting of front slide bearing 11, back sliding bearing 12 and thrust ball bearing 13, thereby drives worm gear 3 rotations; Because the external splines of external splines stroke nut 10 cooperates with the internal spline of internal spline limited cover 5, simultaneously its internal thread again with worm screw 4 on the outside thread engagement, when worm screw 4 rotations, external splines stroke nut 10 can only be along worm screw 4 axially do straight line motion, and be fixed in a certain axial position on the worm screw 4 by stop pin 7 because decide angle nut 6, when moving to limit position, withstands when deciding angle nut 6 external splines stroke nut 10, external splines stroke nut 10 can not move again, worm screw 4 can not continue rotation, and worm gear 3 can not continue rotation to same direction again, and the motion of actuator can only be carried out in the certain limit angle; When 18 rotations of reverse operation handwheel, external splines stroke nut 10 stops up to the shaft shoulder that withstands worm screw 4 to the opposite direction moving linearly equally.Actuator's rotatablely moving in positive and negative both direction can only be made the certain limit angle like this.Again referring to Fig. 1, as can be seen from the figure, when design external splines stroke nut 10 and the gap width of deciding angle nut 6 were got higher value, worm gear 3 rotatable angular ranges were corresponding bigger; If smaller value is got in the gap, worm gear 3 rotatable angular ranges are also corresponding less.That is to say that change and decide the different axial positions of angle nut 6 on worm screw 4, worm gear 3 has just been realized rotatablely moving of different amount strokes, actuator has realized that also wider adjustable angle is spacing.
The end of described worm screw 4 is provided with front slide bearing 11, and the other end is provided with thrust ball bearing 13 and back sliding bearing 12, and they play supporting role to worm screw 4, have born axial force and radial force that worm screw 4 is subjected to respectively, makes worm screw 4 rotations freely.
Referring to Fig. 1 and Fig. 2, the two ends of described worm screw 4 are provided with bearing air cover O shape circle 16 and limited cover O shape circle 9 again, and the position up and down of described worm gear 3 is provided with case lid O shape circle 19 and worm gear O shape circle 20; The end of described worm screw 4 is provided with the bearing air cover 15 that has assembled oil sealing 17.Because the setting of said mechanism, when worm screw 4 and worm gear 3 rotations or when static, they play good sealing protection effect to the utility model.
Claims (3)
1. the spacing Worm gear case of an adjustable angle actuator comprises the worm gear and the worm screw that are positioned at box house, and described casing top is connected with case lid, it is characterized in that:
Described worm gear is a full circumferences shape, the end of described worm screw is provided with by the external splines stroke nut on it of being threaded, by what stop pin was fixed in a certain axial position of worm screw decides angle nut and front slide bearing, the other end is provided with thrust ball bearing, back sliding bearing and handwheel, and described casing is provided with the internal spline limited cover that forms spline fitted with the external splines stroke nut.
2. the spacing Worm gear case of adjustable angle according to claim 1 actuator, it is characterized in that: the position up and down of two ends of described worm screw and described worm gear is provided with O type circle.
3. the spacing Worm gear case of adjustable angle according to claim 1 actuator, it is characterized in that: the end of described worm screw is provided with oil sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201341836U CN201250944Y (en) | 2008-09-11 | 2008-09-11 | Limit worm-gear case actuating mechanism with adjusted angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201341836U CN201250944Y (en) | 2008-09-11 | 2008-09-11 | Limit worm-gear case actuating mechanism with adjusted angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201250944Y true CN201250944Y (en) | 2009-06-03 |
Family
ID=40746617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201341836U Expired - Fee Related CN201250944Y (en) | 2008-09-11 | 2008-09-11 | Limit worm-gear case actuating mechanism with adjusted angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201250944Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908655A (en) * | 2016-04-13 | 2016-08-31 | 中国十七冶集团有限公司 | Flip board type entrance control device |
| CN112840137A (en) * | 2018-10-09 | 2021-05-25 | 蒂森克虏伯普利斯坦股份公司 | Plain bearing for a coupling rod of a steer-by-wire steering gear |
-
2008
- 2008-09-11 CN CNU2008201341836U patent/CN201250944Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908655A (en) * | 2016-04-13 | 2016-08-31 | 中国十七冶集团有限公司 | Flip board type entrance control device |
| CN105908655B (en) * | 2016-04-13 | 2018-07-17 | 中国十七冶集团有限公司 | A kind of turnover plate type entrance guard control device |
| CN112840137A (en) * | 2018-10-09 | 2021-05-25 | 蒂森克虏伯普利斯坦股份公司 | Plain bearing for a coupling rod of a steer-by-wire steering gear |
| CN112840137B (en) * | 2018-10-09 | 2023-07-07 | 蒂森克虏伯普利斯坦股份公司 | Sliding bearing for a coupling rod of a steer-by-wire steering gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20140911 |
|
| EXPY | Termination of patent right or utility model |