CN202691231U - Precise direct stroke actuating mechanism - Google Patents
Precise direct stroke actuating mechanism Download PDFInfo
- Publication number
- CN202691231U CN202691231U CN 201220371515 CN201220371515U CN202691231U CN 202691231 U CN202691231 U CN 202691231U CN 201220371515 CN201220371515 CN 201220371515 CN 201220371515 U CN201220371515 U CN 201220371515U CN 202691231 U CN202691231 U CN 202691231U
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- Prior art keywords
- stroke
- precise direct
- lower housing
- direct stroke
- output shaft
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Abstract
The utility model discloses a precise direct stroke actuating mechanism, comprising an upper main case, an engine base, a lower main case, an electric mounting plate, a linear stepper motor, an output shaft, a potentiometer and a stroke display device. The precise direct stroke actuating mechanism is characterized in that the engine base is arranged at the joint of the upper main case and the lower main case; the electric mounting plate and the linear stepper motor are fixed on the engine base; a displacement pointer is arranged on an output shaft of the linear stepper motor, and a hand wheel adjusting mechanism is arranged at the other end of the linear stepper motor. The precise direct stroke actuating mechanism is compact in structure and beautiful in model; the transmission structure is simplified as a design of a barrel structure is adopted; and all transmission parts are arranged inside a housing of a small barrel structure, so that the precise direct stroke actuating mechanism not only has high precision, but also has low manufacturing cost.
Description
Technical field
The utility model relates to a kind of straight journey actuator, and particularly a kind of device that connects adjustment type industrial control valve valve rod by driving source, such as motor drives one axle belongs to the industrial automation arrangement technical field.
Background technique
At present, industrial employed straight journey actuator forms by turbine-worm drive assembly, spacing, positioning device, it is converted into straight line motion by turbine-worm drive assembly with rotatablely moving of motor by motor driven gear, with the valve rod of movable valve, realize the control to the valve switch degree.The straight journey actuator of this structure exists following shortcoming usually:
1. precision is low, the dead band is large.Because Worm Wheel System is the engaging gear transmission, there is certain interval in itself between engaging gear, makes start-up course produce " dead band ", add the turbine and worm assembly in During Process of Long-term Operation, produce wearing and tearing, make that the gap is increasing between the two, increase " dead band " scope, reduce control accuracy.
2. transmission efficiency is low, cost is high.Worm Wheel System is the engaging gear transmission, and larger relative sliding velocity is arranged between engaging gear, can cause wearing and tearing, heating and the energy consumption of the flank of tooth.In order to reduce tooth surface abrasion, worm-and-wheel gear often uses expensive material and good lubricating fitting, increases cost.
The parts such as motor can not be well and main body merge, cause actuator's volume larger, profile is attractive in appearance not enough.
Summary of the invention
In view of the problem of above-mentioned existence, the purpose of this utility model provides a kind of compact structure, volume is little, handsome in appearance, precision is high, and the low precise direct stroke actuators of cost.
In order to achieve the above object, the utility model has been taked following technological scheme:
Precise direct stroke actuators described in the utility model, include upper casing, support, lower housing, electric mounting board, linear stepping motor, output shaft, potentiometer, stroke display unit, it is characterized in that: support is arranged at the joint of upper casing and lower housing, electric mounting board and linear stepping motor are fixed on the support, on the output shaft of linear stepping motor, be provided with the displacement pointer; At the other end of linear stepping motor, be provided with the handwheel controlling mechanism;
As preferably, described stroke display unit is made of the displacement pointer that is installed in output shaft and the stroke indicator window that is arranged on the lower housing, in the stroke indicator window, is provided with the running length table, can accurately show stroke distances.
As preferably, described handwheel controlling mechanism is made of handwheel, spring collet axle and the manual copper sheathing of motor, between spring collet axle and the manual copper sheathing of motor, is provided with the spring collet adjusting nut.
As preferably, the connection part of described handwheel controlling mechanism spring collet axle and upper casing is provided with oil sealing base.
As preferably, on the described lower housing, be provided with wire outlet, on wire outlet, be provided with the electric coupler seat, and be equipped with waterproof cover, have reliable water-proof performance to guarantee it.
As preferably, described upper casing and lower housing are drum-shaped structure, so that make and assembling.
Through the utility model compact structure after the above-mentioned design, handsome in appearance, driving parts is few, owing to having adopted the design of drum-shaped structure, simplified drive mechanism, and Component all are installed in the housing of a very little drum-shaped structure, therefore not only precision is high, and low cost of manufacture.
Description of drawings
Fig. 1 is form structure schematic diagram of the present utility model
Fig. 2 is internal structure schematic diagram of the present utility model
Among the figure: the manual copper sheathing 12-of 1-upper casing 2-support 3-lower housing 4-output shaft 5-electric mounting board 6-stroke indicator window 7-displacement pointer 8-wire outlet 9-potentiometer 10-linear stepping motor 11-motor spring collet adjusting nut 13-spring collet axle 14-handwheel 15-oil sealing base
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail, but is not restriction to the utility model protection domain.
As shown in Figure 1 and Figure 2, precise direct stroke actuators described in the utility model, include upper casing 1, support 2, lower housing 3, electric mounting board 5, linear stepping motor 10, output shaft 4, potentiometer 9, stroke display unit, it is characterized in that: support 2 is arranged at the joint of upper casing 1 and lower housing 3, electric mounting board 5 and linear stepping motor 10 are fixed on the support 2, on the output shaft of linear stepping motor 10, be provided with displacement pointer 7; At the other end of linear stepping motor 10, be provided with the handwheel controlling mechanism; The stroke display unit is made of the displacement pointer 7 that is installed in output shaft and the stroke indicator window 6 that is arranged on the lower housing, in stroke indicator window 6, is provided with the running length table, can accurately show stroke distances.The handwheel controlling mechanism is made of handwheel 14, spring collet axle 13 and the manual copper sheathing 11 of motor, between spring collet axle 13 and the manual copper sheathing 11 of motor, is provided with spring collet adjusting nut 12.The handwheel 14 of rotation hand wheel controlling mechanism can realize manually controlling the function of motor.On lower housing 3, be provided with wire outlet 8, on the wire outlet 8, be provided with the electric coupler seat, and be equipped with waterproof cover, have reliable water-proof performance to guarantee it.
In addition, at the connection part of handwheel controlling mechanism spring collet axle 13 with upper casing 1, be provided with oil sealing base 15, like this, each of this actuator may enter the position of impurity and all play good sealing, works therefore it can adapt under the various rugged environment.
The utility model compact structure, handsome in appearance owing to having adopted the design of drum-shaped structure, has been simplified drive mechanism, and all transmission Component all has been installed in the housing of a very little drum-shaped structure, therefore not only precision is high, and low cost of manufacture.
Claims (6)
1. precise direct stroke actuators, include upper casing, support, lower housing, electric mounting board, linear stepping motor, output shaft, potentiometer, stroke display unit, it is characterized in that: support is arranged at the joint of upper casing and lower housing, electric mounting board and linear stepping motor are fixed on the support, on the output shaft of linear stepping motor, be provided with the displacement pointer; At the other end of linear stepping motor, be provided with the handwheel controlling mechanism.
2. a kind of precise direct stroke actuators according to claim 1, it is characterized in that described stroke display unit is made of the displacement pointer that is installed in output shaft and the stroke indicator window that is arranged on the lower housing, in the stroke indicator window, be provided with the running length table, can accurately show stroke distances.
3. a kind of precise direct stroke actuators according to claim 1, it is characterized in that described handwheel controlling mechanism is made of handwheel, spring collet axle and the manual copper sheathing of motor, between spring collet axle and the manual copper sheathing of motor, be provided with the spring collet adjusting nut.
4. according to claim 1 or 3 described a kind of precise direct stroke actuators, it is characterized in that the connection part of described handwheel controlling mechanism spring collet axle and upper casing, be provided with oil sealing base.
5. a kind of precise direct stroke actuators according to claim 1 is characterized in that being provided with wire outlet on the described lower housing, on wire outlet, is provided with the electric coupler seat, and is equipped with waterproof cover.
6. a kind of precise direct stroke actuators according to claim 1 is characterized in that described upper casing and lower housing are drum-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220371515 CN202691231U (en) | 2012-07-26 | 2012-07-26 | Precise direct stroke actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220371515 CN202691231U (en) | 2012-07-26 | 2012-07-26 | Precise direct stroke actuating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202691231U true CN202691231U (en) | 2013-01-23 |
Family
ID=47546853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220371515 Expired - Fee Related CN202691231U (en) | 2012-07-26 | 2012-07-26 | Precise direct stroke actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202691231U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075561A (en) * | 2013-01-31 | 2013-05-01 | 黄建斌 | Pneumatic type valve actuator |
| CN103574128A (en) * | 2012-07-26 | 2014-02-12 | 浙江双元科技开发有限公司 | Precision straight stroke actuating mechanism |
-
2012
- 2012-07-26 CN CN 201220371515 patent/CN202691231U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574128A (en) * | 2012-07-26 | 2014-02-12 | 浙江双元科技开发有限公司 | Precision straight stroke actuating mechanism |
| CN103075561A (en) * | 2013-01-31 | 2013-05-01 | 黄建斌 | Pneumatic type valve actuator |
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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: 20130123 Termination date: 20160726 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |