CN211117768U - Water conservancy distributor - Google Patents
Water conservancy distributor Download PDFInfo
- Publication number
- CN211117768U CN211117768U CN201921668846.7U CN201921668846U CN211117768U CN 211117768 U CN211117768 U CN 211117768U CN 201921668846 U CN201921668846 U CN 201921668846U CN 211117768 U CN211117768 U CN 211117768U
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- China
- Prior art keywords
- sleeve
- slide valve
- spring
- housing
- rotor
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Abstract
The utility model discloses a water conservancy distributor, include: a housing in which a sleeve with a spool is installed; a drive motor, the rotor of which is mounted on two bearings in the stator and is engaged with the end of the slide valve through an eccentric and a third bearing; a screw stopper installed in the screw hole of the housing; and a spring disposed in the housing, the spring pressing an end surface of the sleeve to the thread stopper, a bushing installed between the spring and the sleeve, and an assist spring between the bushing and the slide valve, the assist spring pressing the slide valve to a rotor of the driving motor. By adopting the technical scheme, the precision of executing the control signal can be improved.
Description
Technical Field
The utility model relates to an engineering field, volume hydraulic drive promptly is applicable to electronic hydraulic pressure and flow amplifier. In particular to a slide valve type water conservancy distributor.
Background
Hydraulic distributors are divided into slide valves, plug valves, ball valves, injection valves and nozzle throttles, depending on the type of locking and adjusting element. The slide valve type water conservancy distributor is a hydraulic valve in which a slide valve is used as a locking and adjusting element.
From the prior art a water distributor (RU105699, F15B 13/044, published) is known, which has mounted in its casing: a sleeve with a slide valve, a drive motor having a rotor mounted in a stator, the rotor being mounted on two bearings and in moving engagement with the end of the slide valve through an eccentric and a third bearing; a mechanism for adjusting the position of the sleeve relative to the slide valve, which mechanism is made in the form of a thread stop, and a spring is arranged in the housing, which spring is able to press the end face of the sleeve against the thread stop.
The above design eliminates the dependence of the relative position of the spool and sleeve on temperature deformation, but it does not guarantee sufficient accuracy of the actuation signal. The reason is that in any initial position of the slide valve, a change in the direction of the signal on the drive motor first compensates for play in all three bearings, which results in the slide valve lagging behind the rotor eccentric.
SUMMERY OF THE UTILITY MODEL
The object of the present invention is to eliminate the drawbacks of the prior art. The execution accuracy of the control signal is improved.
In order to achieve the above object, the utility model adopts the following technical scheme: a water conservancy distributor, comprising: a housing in which a sleeve with a spool is installed; a drive motor, the rotor of which is mounted on two bearings in the stator and is engaged with the end of the slide valve through an eccentric and a third bearing; a screw stopper installed in the screw hole of the housing; and a spring disposed in the housing, the spring pressing an end surface of the sleeve to the thread stopper, a bushing installed between the spring and the sleeve, and an assist spring between the bushing and the slide valve, the assist spring pressing the slide valve to a rotor of the driving motor.
The technical effect is realized as follows: a bush is mounted between the sleeve and a spring in the housing pressing the end face of the sleeve against the thread stop, and an additional spring is provided between the bush and the slide valve for pressing the slide valve against the rotor of the drive motor. Therefore, the technical scheme can improve the precision of the execution control signal.
Drawings
Figure 1 is a block diagram of a water distributor,
fig. 2 is a section along the motor rotor axis.
Detailed Description
The preferred embodiments of the present invention will be further explained with reference to the accompanying drawings,
as shown in fig. 1 and 2, the water distributor is composed of the following components: a housing 1 in which a sleeve 2 with a slide valve 3 is mounted; a drive motor (motor) 4, the rotor 5 of which is mounted in the stator 6 on two bearings (7, 8) and is engaged with the end 11 of the slide 3 by means of an eccentric 9 and a third bearing 10; a thread stop 12 which regulates the position of the sleeve 2 relative to the slide 3 and the spring 13, the spring 13 being located in the housing 1 and being able to press the sleeve end 14 against the thread stop 12. The thread stop 12 is located on the side of the rotor 5 of the drive motor 4 at an angle to the axis of the sleeve 2, since the position sensor 15 of the slide valve 3 is mounted coaxially with the sleeve.
The creations in the proposed design are as follows: between the spring 12 and the sleeve 2 is mounted a bush 16, between which bush (16 and the slide valve 3) there is an auxiliary spring 17, which auxiliary spring 17 presses the slide valve 3 against the rotor 5 of the drive motor 4, the accuracy of the execution of the control signal by the drive motor 4 is improved, since the clearances in the three bearings (7, 8, 10) and all clearances in the mounting position are constantly compensated for by the continuous action of the auxiliary spring 17 of the slide valve 3.
The operation of the water distributor is as follows: when a control signal is sent to the drive motor 4, the rotor 5 is rotated by an angle proportional to the magnitude of this signal, so that the slide 3 is moved relative to the sleeve 2, directing the flow of working fluid in a given direction and at a given speed.
Claims (1)
1. A water conservancy distributor, comprising: a housing in which a sleeve with a spool is installed; a drive motor, the rotor of which is mounted on two bearings in the stator and is engaged with the end of the slide valve through an eccentric and a third bearing; a screw stopper installed in the screw hole of the housing; and a spring disposed in the housing, the spring pressing the end face of the sleeve to the thread stopper, characterized in that a bush is installed between the spring and the sleeve, and an assist spring pressing the slide valve to the rotor of the drive motor is further provided between the bush and the slide valve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RURU2018134793 | 2018-10-03 | ||
| RU2018134793 | 2018-10-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211117768U true CN211117768U (en) | 2020-07-28 |
Family
ID=71690348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921668846.7U Active CN211117768U (en) | 2018-10-03 | 2019-10-08 | Water conservancy distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211117768U (en) |
-
2019
- 2019-10-08 CN CN201921668846.7U patent/CN211117768U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |