CN208294867U - A kind of hydraulic efficiency servo-valve - Google Patents
A kind of hydraulic efficiency servo-valve Download PDFInfo
- Publication number
- CN208294867U CN208294867U CN201820590827.6U CN201820590827U CN208294867U CN 208294867 U CN208294867 U CN 208294867U CN 201820590827 U CN201820590827 U CN 201820590827U CN 208294867 U CN208294867 U CN 208294867U
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- China
- Prior art keywords
- end cap
- valve body
- valve
- hydraulic efficiency
- rotor
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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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of hydraulic efficiency servo-valves, including, driving mechanism, the driving mechanism is connected with shaft coupling；Shell, the both ends of the shell are respectively arranged with left end cap and right end cap, and the left end cap is fixedly connected with the right end cap by bolt coaxial line, corresponding above and below the left end cap center to be equipped with high pressure oil inlet and low pressure oil return opening；Valve body, the valve body are coaxially mounted in the shell, and the output shaft of the valve body reaches outside the right end cap, and the end coaxial line of the output shaft is equipped with ring flange；Rotor, it is mounted on outside the valve body to the rotor coaxial line, rotatory sealing is provided between the rotor and the shell, the transverse bearing being used to support is provided between the rotor and the left end cap and the right end cap, blade is installed, the utility model is compact-sized, and power density is big on the rotor, oil resistant liquid pollution capacity is strong, and control precision improves.
Description
Technical field
The utility model relates to a kind of servo valves to belong to Fluid pressure control member more particularly to a kind of hydraulic efficiency servo-valve
Part field.
Background technique
Hydraulic efficiency servo-valve is the core element of hydraulic control system, industrially has and widely applies, it can be by motor
The small-power of input is converted into the high-power of hydraulic system output, to carry out accurate high-torque control to equipment corner.
Formula is put in the work that existing hydraulic efficiency servo-valve is all made of valve-controlled motor, since valve-controlled motor is the structure of separate type,
So its installation space is big, quality weight causes servo valve anti-pollution ability low, and dynamic response is low.
Utility model content
The purpose of this utility model is small in size, the matter in view of the deficienciess of the prior art, provide a kind of hydraulic efficiency servo-valve
Amount is light, and control is simple, and contamination resistance is strong.
To achieve the above object, the utility model provides a kind of hydraulic efficiency servo-valve, including, driving mechanism, the driving
Mechanism is connected with shaft coupling；Shell, the both ends of the shell are respectively arranged with left end cap and right end cap, the left end cap and described
Right end cap is fixedly connected by bolt coaxial line, above and below the left end cap center it is corresponding be equipped with high pressure oil inlet and
Low pressure oil return opening；Valve body, the valve body are coaxially mounted in the shell, and the output shaft of the valve body reaches the right end
Lid is outer, and the end coaxial line of the output shaft is equipped with ring flange；Rotor is mounted on the valve body to the rotor coaxial line
Outside, rotatory sealing is provided between the rotor and the shell, between the rotor and the left end cap and the right end cap
It is provided with the transverse bearing being used to support, blade is installed on the rotor.
In a kind of hydraulic efficiency servo-valve as described above, wherein the driving mechanism is DC servo motor, the shaft coupling
For yielding coupling, the DC servo motor is connected by the shaft coupling with the left end cap.
In a kind of hydraulic efficiency servo-valve as described above, wherein valve body drain path is provided at the axle center of the output shaft,
The end of the valve body drain path is provided with drain tap, and the drain tap is arranged in the through-hole of the ring flange.
In a kind of hydraulic efficiency servo-valve as described above, wherein be provided with valve pocket in the valve body, the valve pocket is coaxially
It is mounted in the hollow cylinder of the valve body, coaxially spool is equipped in the valve pocket.
In a kind of hydraulic efficiency servo-valve as described above, wherein the junction of the output shaft and the right end cap is provided with
Dust seal.
In a kind of hydraulic efficiency servo-valve as described above, wherein the high pressure oil inlet passes through high-pressure oil duct and the valve body
The oil duct that intermediate annular groove is constituted is connected.
In a kind of hydraulic efficiency servo-valve as described above, wherein the low pressure oil return opening passes through low pressure oil duct and the valve body
The oil duct that intermediate annular groove is constituted is connected.
In a kind of hydraulic efficiency servo-valve as described above, wherein the left and right ends of the spool be provided with thrust bearing with
In the support spool.
In a kind of hydraulic efficiency servo-valve as described above, wherein the annular groove is at least provided with four.
The utility model has the following beneficial effects: this hydraulic efficiency servo-valve valve and motor are androgynous, and small in size, light weight, control
Simply, contamination resistance is strong；Using servo motor drive Spool rotating, valve pocket control window and motor rotating vane and spool with
It is dynamic, volume, weight are substantially reduced, oil resistant liquid pollution capacity is strong, and control precision improves；Compared with prior art, this is practical new
Type is compact-sized, and power density is big, and oil resistant liquid pollution capacity is strong, and control precision improves.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of hydraulic efficiency servo-valve provided by the embodiment of the utility model.
The label of each component of attached drawing is as follows:
10- driving mechanism；11- shaft coupling；
20- shell；21- left end cap；22- right end cap；23- high pressure oil inlet；24- low pressure oil return opening；25- high-pressure oil duct；
26- low pressure oil duct；
30- valve body；31- output shaft；32- ring flange；33- valve body drain path；34- drain tap；35- valve pocket；36- valve
Core；37- dust seal；38- thrust bearing；
40- rotor；41- rotatory sealing；42- transverse bearing；43- blade.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
The technical solution of the utility model embodiment is clearly and completely described in the attached drawing of type embodiment.Obviously, described
Embodiment is a part of the embodiment of the utility model, instead of all the embodiments.Based on described the utility model
Embodiment, those of ordinary skill in the art's every other embodiment obtained, fall within the protection scope of the utility model.
One embodiment of the utility model provides a kind of hydraulic efficiency servo-valve, and compact-sized, power density is big, oil resistant liquid
Pollution capacity is strong, and control precision is high.
As shown in Figure 1, a kind of hydraulic efficiency servo-valve, comprising: driving mechanism 10, shell 20, valve body 30 and rotor 40.
Specifically, the driving mechanism 10) it is connected with shaft coupling 11, the both ends of the shell 20 are respectively arranged with left end cap
21 and right end cap 22, the left end cap 21 is fixedly connected with the right end cap 22 by bolt coaxial line, in the left end cap 21
Corresponding above and below the heart to be equipped with high pressure oil inlet 23 and low pressure oil return opening 24, the valve body 30 is coaxially mounted to institute
It states in shell 20, the output shaft 31 of the valve body 30 reaches outside the right end cap 22, the end coaxial line peace of the output shaft 31
Equipped with ring flange 32, the rotor 40 is coaxially mounted to outside the valve body 30, between the rotor 40 and the shell 20
It is provided with rotatory sealing 41, is provided with and is used to support between the rotor 40 and the left end cap 21 and the right end cap 22
Transverse bearing 42 is equipped with blade 43 on the rotor 40, leaf corresponding with the blade 43 is offered on the rotor 40
Film trap.
Further, the oil duct that the high pressure oil inlet 23 is made up of high-pressure oil duct 25 and 30 intermediate annular groove of valve body
It is connected, the low pressure oil return opening 24 is connected by low pressure oil duct 26 with the oil duct that 30 intermediate annular groove of valve body is constituted, the ring
Shape slot is at least provided with four.
In one embodiment of the utility model, the driving mechanism 10 is DC servo motor, and the shaft coupling 11 is
Yielding coupling, the DC servo motor are connected by the shaft coupling 11 with the left end cap 21, the shaft coupling 11 and
The valve body 30 is coaxially set, and the shaft coupling 11 can be made of materials such as aluminium alloy, stainless steel, engineering plastics, institute
It states and is connected between shaft coupling 11 and the left end cap 21 by spline.
In the present embodiment, valve body drain path 33, the valve body drain path are provided at the axle center of the output shaft 31
33 end is provided with drain tap 34, and the drain tap 34 is arranged in the through-hole of the ring flange 32,31 He of output shaft
The junction of the right end cap 22 is provided with dust seal 37, and the setting of the dust seal 37 avoids dust impurity etc. and falls into
Into the shell 20.
In one embodiment of the utility model, valve pocket 35 is provided in the valve body 30, the valve pocket 35 is coaxially
It is mounted in the hollow cylinder of the valve body 30, coaxially spool 36, the spool is equipped in the valve pocket 35
36 left and right ends are provided with thrust bearing 38 to be used to support the spool 36.
High pressure oil enters in the high-pressure oil duct 25 from the high pressure oil inlet 23 of the left end cap 21, along oil duct
It enters in the oil duct that 30 intermediate annular groove of valve body is constituted, is finally imported into the valve plate being connected with the spool 35, institute
Blade 43 is stated under the promotion of high pressure oil as the rotor 40 rotates, the volume of the valve body 30 starts to reduce, and high pressure oil becomes
At low pressure oil, low pressure oil is flowed out from the low pressure oil return opening 24 by the low pressure oil duct 26.
To sum up, androgynous according to a kind of above-mentioned hydraulic efficiency servo-valve valve and motor, small in size, light weight, control is simple,
Contamination resistance is strong；Spool rotating is driven using servo motor, the control window of valve pocket and the rotating vane and spool of motor are servo-actuated, greatly
Volume, weight are reduced greatly, oil resistant liquid pollution capacity is strong, and control precision improves；Compared with prior art, the utility model structure
Compact, power density is big, and oil resistant liquid pollution capacity is strong, and control precision improves.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (9)
1. a kind of hydraulic efficiency servo-valve, it is characterised in that: including,
Driving mechanism (10), the driving mechanism (10) are connected with shaft coupling (11)；
The both ends of shell (20), the shell (20) are respectively arranged with left end cap (21) and right end cap (22), the left end cap
(21) it is fixedly connected with the right end cap (22) by bolt coaxial line, it is corresponding above and below left end cap (21) center
Be equipped with high pressure oil inlet (23) and low pressure oil return opening (24)；
Valve body (30), the valve body (30) are coaxially mounted in the shell (20), the output shaft of the valve body (30)
(31) right end cap (22) is reached outside, the end coaxial line of the output shaft (31) is equipped with ring flange (32)；
Rotor (40), the rotor (40) are coaxially mounted to the valve body (30) outside, the rotor (40) and the shell
(20) it is provided between rotatory sealing (41), is set between the rotor (40) and the left end cap (21) and the right end cap (22)
It is equipped with the transverse bearing (42) being used to support, blade (43) are installed on the rotor (40).
2. a kind of hydraulic efficiency servo-valve according to claim 1, it is characterised in that: the driving mechanism (10) is DC servo
Motor, the shaft coupling (11) are yielding coupling, and the DC servo motor passes through the shaft coupling (11) and the left end
(21) are covered to be connected.
3. a kind of hydraulic efficiency servo-valve according to claim 1, it is characterised in that: be arranged at the axle center of the output shaft (31)
Have valve body drain path (33), the end of the valve body drain path (33) is provided with drain tap (34), the drain tap (34)
It is arranged in the through-hole of the ring flange (32).
4. a kind of hydraulic efficiency servo-valve according to claim 1, it is characterised in that: be provided with valve pocket in the valve body (30)
(35), the valve pocket (35) is coaxially mounted in the hollow cylinder of the valve body (30), cooperation in the valve pocket (35)
It is provided with coaxially spool (36).
5. a kind of hydraulic efficiency servo-valve according to claim 1, it is characterised in that: the output shaft (31) and the right end cap
(22) junction is provided with dust seal (37).
6. a kind of hydraulic efficiency servo-valve according to claim 1, it is characterised in that: the high pressure oil inlet (23) passes through high pressure
Oil duct (25) is connected with the oil duct that the valve body (30) intermediate annular groove is constituted.
7. a kind of hydraulic efficiency servo-valve according to claim 1, it is characterised in that: the low pressure oil return opening (24) passes through low pressure
Oil duct (26) is connected with the oil duct that the valve body (30) intermediate annular groove is constituted.
8. a kind of hydraulic efficiency servo-valve according to claim 4, it is characterised in that: the left and right ends of the spool (36) are arranged
There is thrust bearing (38) to be used to support the spool (36).
9. a kind of hydraulic efficiency servo-valve according to claim 6 or 7, it is characterised in that: the annular groove is at least provided with four
It is a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820590827.6U CN208294867U (en) | 2018-04-24 | 2018-04-24 | A kind of hydraulic efficiency servo-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820590827.6U CN208294867U (en) | 2018-04-24 | 2018-04-24 | A kind of hydraulic efficiency servo-valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208294867U true CN208294867U (en) | 2018-12-28 |
Family
ID=64725640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820590827.6U Expired - Fee Related CN208294867U (en) | 2018-04-24 | 2018-04-24 | A kind of hydraulic efficiency servo-valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208294867U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241716A (en) * | 2019-06-25 | 2019-09-17 | 石家庄铁道大学 | A kind of hydraulic active control vibration damping holder for railway emergency first-aid repair steel truss girder |
| CN114776853A (en) * | 2022-03-18 | 2022-07-22 | 衢州学院 | Worm-gear type overflow valve with wide pressure regulating range and strong pollution resistance |
-
2018
- 2018-04-24 CN CN201820590827.6U patent/CN208294867U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241716A (en) * | 2019-06-25 | 2019-09-17 | 石家庄铁道大学 | A kind of hydraulic active control vibration damping holder for railway emergency first-aid repair steel truss girder |
| CN114776853A (en) * | 2022-03-18 | 2022-07-22 | 衢州学院 | Worm-gear type overflow valve with wide pressure regulating range and strong pollution resistance |
| CN114776853B (en) * | 2022-03-18 | 2023-04-25 | 衢州学院 | Worm-gear overflow valve with wide pressure regulating range and strong pollution resistance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20181228 Termination date: 20200424 |