CN202252241U - Clutch type electric valve - Google Patents
Clutch type electric valve Download PDFInfo
- Publication number
- CN202252241U CN202252241U CN201120340374XU CN201120340374U CN202252241U CN 202252241 U CN202252241 U CN 202252241U CN 201120340374X U CN201120340374X U CN 201120340374XU CN 201120340374 U CN201120340374 U CN 201120340374U CN 202252241 U CN202252241 U CN 202252241U
- Authority
- CN
- China
- Prior art keywords
- micromachine
- chute
- friction disk
- valve body
- driven friction
- 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.)
- Expired - Fee Related
Links
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model provides a clutch type electric valve, which is used for opening and closing a hydraulic system pipeline and comprises a valve body and a miniature motor, wherein a screw rod of the valve body extends into a casing arranged above the valve body, in addition, the end part of the screw rod is vertically fixed with a driven friction disc, a position right against the driven friction disc in the casing is provided with a chute, the miniature motor capable of sliding along the chute is arranged in the chute and drives a driving friction disc right against the driven friction disc through a rotating shaft, the tail part of the miniature motor is connected with a slide block capable of sliding in the chute through a compression spring, in addition, a position of the casing right against the slide block is provided with a through hole allowing a finger to touch the slide block, and the maximum slide friction force moment of the driving friction disc and the driven friction disc is smaller than the ultimate torque of the miniature motor. The electric valve has the advantages that the structure is simple, the overloading protection of the miniature motor can be realized without adopting an electric control module, and in addition, the reliability is higher.
Description
Affiliated technical field
The utility model relates to a kind of valve body that is used for the break-make pipeline, particularly, is a kind of electric valve that is driven by micromachine.
Background technique
In hydraulic system, need to use valve body that each pipeline is carried out break-make; For the ease of operation, and realize automation control, occurred the mortor operated valve of multiple model at present, it is by the rotation of micromachine control valve screw rod, with the keying of automatic realization to valve; Because valve is when standard-sized sheet or full cut-off, screw rod is in limit position, and this moment, micromachine can't drive screw, if do not take measures, then micromachine will generate heat rapidly, and burns; Therefore, in the present electric control valve, adopt and big electric current is carried out overload protection like automatically controlled plates such as ratio plates; Yet when adopting electronic circuit to control protection, because electronic component damages easily, its reliability is comparatively limited, and, the electronic control module complex structure, cost is higher.
The model utility content
To the problems referred to above, the purpose of the utility model is to provide a kind of clutch type mortor operated valve, and this mortor operated valve is simple in structure, need not to adopt electronic control module, can realize the overload protection to micromachine, and reliability is higher.
The utility model solves the technological scheme that its technical problem adopted: this clutch type mortor operated valve comprises valve body; Micromachine; The screw rod of said valve body stretches in the housing being located at said valve body top, and driven friction disk of this screw rod end vertical fixing, is provided with a chute over against said driven friction disk in the said housing; Be provided with the said micromachine that can slide along chute in this chute, this micromachine through one of rotating shaft driving and said driven friction disk over against the active friction disk; Said micromachine afterbody connects the slide block that can in said chute, slide through pressure spring, and said housing is offered a through hole that can let finger touch this slide block over against said slide block place; The maximum sliding friction torque of said active friction disk and driven friction disk is less than the torque limit of said micromachine.
As preferably, said driven friction disk and friction disk initiatively through the friction plate formation of screw on this solid block, so that renewal of facing renewal more, but keep the frictionally between two friction disks by a rounded solid piece and a slice.
As preferably, said chute cross section is rectangular, and accordingly, the cross section of said micromachine is also rectangular, thereby the stator of micromachine can't be rotated in chute.
The beneficial effect of the utility model is: this clutch type mortor operated valve in use, the driven friction disk on the screw rod of valve body is laminated under the effect of said pressure spring with the active friction disk that is driven by micromachine, then under the driving of micromachine; The screw rod of valve body will rotate, until reaching the limit of the position, at this moment; Because the maximum sliding friction torque of said active friction disk and driven friction disk is less than the torque limit of said micromachine; Therefore, screw rod is static, and two friction disks rotate relatively; And the suffered resisting moment of micromachine is less than the torque limit of self, so micromachine is in a safe condition all the time; This mortor operated valve is simple in structure, need not to adopt electronic control module, can realize the overload protection to micromachine, and reliability is higher.
Description of drawings
Fig. 1 is an embodiment's of this clutch type mortor operated valve a structural representation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified:
In the embodiment shown in fig. 1, this clutch type mortor operated valve comprises valve body 1, micromachine 3; The screw rod 11 of said valve body 1 stretches in the housing 2 being located at said valve body 1 top, through this screw rod 11 of turn, the keying of may command valve body 1; This conventional structure repeats no more; Driven friction disk 5 of these screw rod 11 end vertical fixing; Be provided with a chute 21 over against said driven friction disk 5 in the said housing 2; Be provided with the said micromachine 3 that can slide along chute 21 in this chute 21, this micromachine 3 through one of rotating shaft 31 driving and said driven friction disk 5 over against active friction disk 4; Said micromachine 3 afterbodys connect the slide block 22 that can in said chute 21, slide through pressure spring 6, and said housing 2 is offered a through hole that can let finger touch this slide block 22 over against said slide block 22 places; The maximum sliding friction torque of said active friction disk 4 and driven friction disk 5 is less than the torque limit of said micromachine 3; , can know that initiatively pressure is big more between friction disk 4 and the driven friction disk 5 here by mechanics principle; Then maximum sliding friction torque is big more, and said screw rod 11 gos deep into said valve body 1 inside, that is valve body 1 is in the ultimate state when closing fully; Then said micromachine 3 slides down to a limit position; Said pressure spring 6 diastoles can know that to the limit elastic force of this place's pressure spring 6 is minimum; Therefore pressure is minimum between active friction disk 4 and the driven friction disk 5, and the sliding friction torque between them is also minimum; And during the ultimate state when valve body 1 is in complete opening; Because pressure spring 6 is compressed into the limit, therefore, pressure reaches maximum between active friction disk 4 and the driven friction disk 5 at this moment; Its sliding friction torque is also maximum; Therefore, the sliding friction torque that only need make this place gets final product less than the torque limit of micromachine 3, and this parameter request depends on the compression distance and the elasticity coefficient of said pressure spring 6.
Above-mentioned clutch type mortor operated valve; Said driven friction disk 5 constitutes through the friction plate 45 of screw on this solid block by a rounded solid piece and a slice with active friction disk 4; So that renewal of facing renewal 45 more; Said friction plate 45 can be made up of ceramic friction plate, but keeps the frictionally between two friction disks.
Above-mentioned clutch type mortor operated valve, said chute 21 cross sections are rectangular, and accordingly, the cross section of said micromachine 3 is also rectangular, thereby the stator of micromachine 3 can't be rotated in chute 21.
Above-mentioned clutch type mortor operated valve in use, driven friction disk on the screw rod 11 of valve body 15 is laminated under the effect of said pressure spring 6 with the active friction disk 4 that is driven by micromachine 3, then under the driving of micromachine 3; The screw rod 11 of valve body 1 will rotate, until reaching the limit of the position, at this moment; Because the maximum sliding friction torque of said active friction disk 4 and driven friction disk 5 is less than the torque limit of said micromachine 3; Therefore, screw rod is static, and two friction disks rotate relatively; And the suffered resisting moment of micromachine is less than the torque limit of self, so micromachine is in a safe condition all the time; It is pointed out that when screw rod 11 is in ultimate state, if need screw rod 11 revolutions; Required friction torque will be slightly larger than the maximum sliding friction torque of said active friction disk 4 and driven friction disk 5 under the normal condition; At this moment, can be through the through hole on the said housing 2 down by the slide block 22 in the said chute 21, with the said pressure spring 6 of further compression; Maximum static friction moment between said active friction disk 4 and the driven friction disk 5 is increased; To start the revolution action, circle round after the beginning, can decontrol said slide block 22.
Said electric valve is simple in structure, need not to adopt electronic control module, can realize the overload protection to micromachine, and reliability is higher.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (3)
1. clutch type mortor operated valve; Comprise valve body (1); Micromachine (3); The screw rod (11) of said valve body (1) stretches in the housing (2) of being located at said valve body (1) top, it is characterized in that: be provided with a chute (21) over against said driven friction disk (5) in this screw rod (11) the end driven friction disk of vertical fixing (5), said housing (2); Be provided with the said micromachine (3) that can slide along chute (21) in this chute (21), this micromachine (3) through one of rotating shaft (31) driving and said driven friction disk (5) over against active friction disk (4); Said micromachine (3) afterbody connects the slide block (22) that can in said chute (21), slide through pressure spring (6), and said housing (2) locates to offer a through hole that can let finger touch this slide block (22) over against said slide block (22); The maximum sliding friction torque of said active friction disk (4) and driven friction disk (5) is less than the torque limit of said micromachine (3).
2. clutch type mortor operated valve according to claim 1 is characterized in that: said driven friction disk (5) and active friction disk (4) constitute through the friction plate (45) of screw on this solid block by a rounded solid piece and a slice.
3. clutch type mortor operated valve according to claim 1 is characterized in that: said chute (21) cross section is rectangular, and accordingly, the cross section of said micromachine (3) is also rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120340374XU CN202252241U (en) | 2011-09-08 | 2011-09-08 | Clutch type electric valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120340374XU CN202252241U (en) | 2011-09-08 | 2011-09-08 | Clutch type electric valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202252241U true CN202252241U (en) | 2012-05-30 |
Family
ID=46113483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120340374XU Expired - Fee Related CN202252241U (en) | 2011-09-08 | 2011-09-08 | Clutch type electric valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202252241U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10400907B2 (en) | 2015-11-12 | 2019-09-03 | Life Assistant, LTD. | Leading thread valve |
-
2011
- 2011-09-08 CN CN201120340374XU patent/CN202252241U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10400907B2 (en) | 2015-11-12 | 2019-09-03 | Life Assistant, LTD. | Leading thread valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203835060U (en) | Clutch device for double-motor electronic lock | |
| EP2712987A3 (en) | Switching mechanism | |
| WO2011154482A3 (en) | Assembly for a drug delivery device and drug delivery device | |
| CN201535337U (en) | Damping buffer and kettle with same | |
| CN102052438A (en) | Gear drive structure with function of overload protection | |
| CN202252241U (en) | Clutch type electric valve | |
| CN203939974U (en) | A kind of transmission device of electrically driven curtain | |
| CN201934611U (en) | Gear transmission structure with overload protection function | |
| WO2014152186A3 (en) | Rotational atherectomy device with biasing clutch | |
| CN203130848U (en) | Safe on-off device on door closer | |
| CN207266692U (en) | A kind of driving mechanism suitable for electrically driven curtain | |
| CN203846874U (en) | Flexible sliding cover device | |
| CN206754542U (en) | Anti-fire smoke expelling valve YE with power-off actuating and auto-reset function | |
| CN105276018A (en) | Torque limiter | |
| CN202360699U (en) | Elastic contact transmission device | |
| CN201225052Y (en) | Electric door machine | |
| CN203434804U (en) | Brake motor | |
| CN209262113U (en) | Slip clutch | |
| CN207864734U (en) | A kind of spring reset type Electric Actuator | |
| CN201884627U (en) | Four-driving independent operating device of tractor | |
| CN105405688A (en) | High-voltage switch mechanism drive device | |
| RU2495288C1 (en) | Worm safety clutch | |
| CN202548959U (en) | Torsion overload protection structure of cash discharge door | |
| CN201621242U (en) | Feedback control friction coupler | |
| CN103156403A (en) | Medicine frame capable of rotating automatically |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20130908 |