CN202493514U - Rotary type control throttled directional valve - Google Patents
Rotary type control throttled directional valve Download PDFInfo
- Publication number
- CN202493514U CN202493514U CN2012200880991U CN201220088099U CN202493514U CN 202493514 U CN202493514 U CN 202493514U CN 2012200880991 U CN2012200880991 U CN 2012200880991U CN 201220088099 U CN201220088099 U CN 201220088099U CN 202493514 U CN202493514 U CN 202493514U
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- Prior art keywords
- control
- directional valve
- rack
- rotary type
- cam
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- Expired - Fee Related
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Abstract
The utility model relates to a rotary type control throttled directional valve, which comprises a valve body, wherein a gear rack pair for controlling a rack type valve core to act is installed inside one cavity inside the valve body; a throttle groove is formed on the shaft diameter of the rack type valve core; a rack is formed on the rack type valve core; a gear acting in match with the rack is fixed on a gear shaft; and the gear shaft is in power connection with a stepping motor or a common motor with an emergency brake function. With the adoption of the directional valve, the direction can be changed and at the same time the speed can be controlled; the structure of a hydraulic oil circuit is simplified; hydraulic elements are reduced; in practical application, the automation is realized in a soft control mode; the application range and the turning convenience of equipment are improved; the directional valve has the advantages of being simple in structure, low in manufacturing requirement, insensitive in oil pollution, long in service life and easy to realize the automation control; and meanwhile the stepping motor is high in control precision and the stroke is not limited, so that the purpose that the hydraulic quantity is controlled precisely by a hydraulic valve controlled by the directional valve is achieved.
Description
Technical field
The utility model belongs to the hydraulic-pressure control apparatus technical field, relates to a kind of rotary type control throttled directional valve that can adopt Digital Control.
Background technique
The purpose of hydraulic control mainly is divided into two aspects:
The one, the hydraulic operation process control; In the hydraulic operation process, require the hydraulic pressure output parameter as: flow, pressure reach the purpose of accurate control; And its output parameter can be complementary with control signal; This type hydraulic control component is main with servovalve and Proportional valve mainly, is mainly used in the advanced equipments of high grade and precision that automation is had relatively high expectations, and its shortcoming is that cost and technical requirements are higher.
The 2nd, the hydraulic operation target control; The main purpose of this type control is that the requirement action piece arrives the position of setting by pre-set logical relation through hydraudynamic drive; In course of action, less demanding to the precision of hydraulic flow, pressure, this type hydraulic control component is main with electromagnetic switch valve and manual modulation valve; Its shortcoming is that automaticity is relevant with preset meter flow process; Equipment typing back flow process is difficult to revise, so its automation control belongs to hardware controls, and is more for realizing the required control hydraulic element of some simple motions.This type hydraulic control component still accounts for the overwhelming majority at present.
Along with science and technology development, Digital Control has been mature technique very, but its application also has many places leaved for development; As in hydraulic equipment; The control mainstream development direction of hydraulic element is to control with PLC, but most PLC uses still switching value formula control, does not bring into play the effect of the Digital Control function of PLC veritably; This is the waste of a kind of existing resource, and what cause this phenomenon also is because unripe, low cost and digital hydraulic element.
The model utility content
For overcoming above-mentioned technical disadvantages, the utility model provide a kind of in switching-over controllable speed, therefore in hydraulic control, can simplify hydraulic circuit structure and the rotary type control throttled directional valve that reduces hydraulic element.
The utility model solves the technological method that its technical problem adopted: a kind of rotary type control throttled directional valve; Comprise valve body; The rack-and-pinion that is used to control the action of rack-type spool is housed in one of them cavity in valve body, on the diameter of axle of rack-type spool, has throttling groove, on the rack-type spool, have tooth bar; Be fixed on the gear shaft with the gear of tooth bar mating reaction, gear shaft is connected with the common electric machine power of stepper motor or the anxious function of stopping of band.
In valve body, be provided with the cavity of several different control requirements and the oil circuit between cavity.
In the middle part of the rack-type spool or on the core outer surface that take back in the middle part or the middle part takes over, have tooth bar.
Said gear shaft is independent axes or motor shaft.
End cap is equipped with in end at valve body.
A kind of rotary type control throttled directional valve; Comprise valve body; The cam pair that is used to control the action of cam slot type spool is housed in one of them cavity in valve body, on the diameter of axle of cam slot type spool, has throttling groove, on cam slot type core body, be processed with cam path; Be fixed on the camshaft with the cam of cam path mating reaction, camshaft is connected with the common electric machine power of stepper motor or the anxious function of stopping of band.
In valve body, be provided with the cavity of several different control requirements and the oil circuit between cavity.
On week in cam slot type poppet shaft footpath or diameter of axle top or diameter of axle bottom or diameter of axle side have cam path.
Said camshaft is independent axes or motor shaft.
The outer rim of said cam is the cam curve that requires to be designed with multiple structural type according to Different control.
The beneficial effect of the utility model is: the described rotary type control of the utility model throttled directional valve is a kind of combination valve, at switching-over while controllable speed, therefore in hydraulic control, can simplify the hydraulic circuit structure, reduces hydraulic element; The utility model adopts the driving power of stepper motor as spool; The Stepping Motor Control mode is digitized; Thereby can control direction of action, speed and the position of spool, and then reach motion with Digital Control mode control apparatus action piece fairly simplely; In practical application, realize automation with soft control mode, improved the application area and the mode convenience of equipment than being easier to; Have simple in structure, make the advantage require low, insensitive, long service life and easily to be automated control to oil pollution; Simultaneously because the Stepping Motor Control precision is high; Stroke is unrestricted, so its hydrovalve of controlling can reach the purpose of accurate control hydraulic flow.
Description of drawings
Fig. 1 is the utility model embodiment 1 a structural representation.
Fig. 2 is the utility model embodiment 2 a structural representation.
Among the figure: 1-gear shaft, 2-valve body, 3-gear, 4-rack-type spool, 5-tooth bar, 6-cavity, 7-throttling groove, 8-end cap, 9-camshaft, 10-cam, 11-cam path, 12-cam slot type spool.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Embodiment 1, referring to Fig. 1, and a kind of rotary type control throttled directional valve; Comprise valve body 2, end cap 8 is housed, require in valve body 2, can to design the oil circuit of 6 of a plurality of cavitys 6 and cavitys according to Different control in the end of valve body 2; The rack-and-pinion that is used to control 4 actions of rack-type spool is housed in the cavity 6 therein, on rack-type spool 4 middle parts or the core body that takes back in the middle part or the middle part takes over, is processed with tooth bar 5, on the diameter of axle of rack-type spool 4, have throttling groove 7; Be fixed on the gear shaft 1 with the gear 3 of tooth bar 5 mating reactions; Gear shaft 1 can be independent axes or motor shaft, and gear shaft 1 is driven by the common electric machine of stepper motor or the anxious function of stopping of band, when 3 revolutions of gear shaft 1 driven gear; Drive rack-type spool 4 move left and right through rack-and-pinion, thereby reach the effect of control flow direction and flow.
Embodiment 2, referring to Fig. 2, and a kind of rotary type control throttled directional valve; Comprise valve body 2, end cap 8 is housed, require in valve body 2, can to design the oil circuit of 6 of a plurality of cavitys 6 and cavitys according to Different control in the end of valve body 2; The cam pair that is used to control 12 actions of cam slot type spool is housed in the cavity 6 therein; In week of cam slot type spool 12 diameters of axle or diameter of axle top or diameter of axle bottom or diameter of axle side have cam path 11, on the diameter of axle of cam slot type spool 12, have throttling groove 7, be fixed on the camshaft 9 with the cam 10 of cam path 11 mating reactions; The outer rim of cam 10 is the cam curves that require to be designed with multiple structural type according to Different control; Camshaft 9 can be independent axes or motor shaft, and camshaft 9 is driven by the common electric machine of stepper motor or the anxious function of stopping of band, when camshaft 9 drives cam 10 revolutions; Through the secondary driving cam slot type of cam spool 12 move left and right, thereby reach the effect of controlling flow direction and flow.
The described rotary type control of the utility model throttled directional valve is a kind of combination valve, at switching-over while controllable speed, therefore in hydraulic control, can simplify the hydraulic circuit structure, reduces hydraulic element; The utility model adopts the driving power of stepper motor as spool; The Stepping Motor Control mode is digitized; Thereby can control direction of action, speed and the position of spool, and then reach motion with Digital Control mode control apparatus action piece fairly simplely; In practical application, realize automation with soft control mode, improved the application area and the mode convenience of equipment than being easier to; Have simple in structure, make the advantage require low, insensitive, long service life and easily to be automated control to oil pollution; Simultaneously because the Stepping Motor Control precision is high; Stroke is unrestricted, so its hydrovalve of controlling can reach the purpose of accurate control hydraulic flow.
Claims (10)
1. a rotary type is controlled throttled directional valve; Comprise valve body; It is characterized in that: the rack-and-pinion that is used to control the action of rack-type spool is housed in one of them cavity in valve body, on the diameter of axle of rack-type spool, has throttling groove, on the rack-type spool, have tooth bar; Be fixed on the gear shaft with the gear of tooth bar mating reaction, gear shaft is connected with the common electric machine power of stepper motor or the anxious function of stopping of band.
2. rotary type control throttled directional valve as claimed in claim 1 is characterized in that: in valve body, be provided with the cavity of several different control requirements and the oil circuit between cavity.
3. rotary type control throttled directional valve as claimed in claim 1 is characterized in that: in the middle part of the rack-type spool or on the core outer surface that take back in the middle part or the middle part takes over, have tooth bar.
4. rotary type control throttled directional valve as claimed in claim 1, it is characterized in that: said gear shaft is independent axes or motor shaft.
5. according to claim 1 or claim 2 rotary type control throttled directional valve, it is characterized in that: end cap is equipped with in the end at valve body.
6. a rotary type is controlled throttled directional valve; Comprise valve body; It is characterized in that: the cam pair that is used to control the action of cam slot type spool is housed in one of them cavity in valve body, on the diameter of axle of cam slot type spool, has throttling groove, on cam slot type core body, be processed with cam path; Be fixed on the camshaft with the cam of cam path mating reaction, camshaft is connected with the common electric machine power of stepper motor or the anxious function of stopping of band.
7. rotary type control throttled directional valve as claimed in claim 6 is characterized in that: in valve body, be provided with the cavity of several different control requirements and the oil circuit between cavity.
8. rotary type as claimed in claim 6 control throttled directional valve is characterized in that: on week in cam slot type poppet shaft footpath or diameter of axle top or diameter of axle bottom or diameter of axle side have cam path.
9. rotary type control throttled directional valve as claimed in claim 6, it is characterized in that: said camshaft is independent axes or motor shaft.
10. rotary type control throttled directional valve as claimed in claim 6 is characterized in that: the outer rim of said cam is the cam curve that requires to be designed with multiple structural type according to Different control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200880991U CN202493514U (en) | 2012-03-12 | 2012-03-12 | Rotary type control throttled directional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200880991U CN202493514U (en) | 2012-03-12 | 2012-03-12 | Rotary type control throttled directional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202493514U true CN202493514U (en) | 2012-10-17 |
Family
ID=46999747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200880991U Expired - Fee Related CN202493514U (en) | 2012-03-12 | 2012-03-12 | Rotary type control throttled directional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202493514U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588375A (en) * | 2012-03-12 | 2012-07-18 | 韶关市加法机电实业有限公司 | Rotary throttling and reversing control system |
| CN107753205A (en) * | 2017-12-14 | 2018-03-06 | 刘梓怡 | A kind of pneumatic soft bed of pre- counteracting bedsores |
-
2012
- 2012-03-12 CN CN2012200880991U patent/CN202493514U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588375A (en) * | 2012-03-12 | 2012-07-18 | 韶关市加法机电实业有限公司 | Rotary throttling and reversing control system |
| CN107753205A (en) * | 2017-12-14 | 2018-03-06 | 刘梓怡 | A kind of pneumatic soft bed of pre- counteracting bedsores |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20180312 |