阅读说明：本技术 一种一体化快速响应阀门电液驱动装置 (Integrated quick response valve electro-hydraulic driving device ) 是由 熊朦 王超宁 孙平 张惺华 余佳宇 蒋重霞 于 2019-09-28 设计创作，主要内容包括：本发明公开了一种一体化快速响应阀门电液驱动装置,涉及阀门控制领域,该装置包括油箱、齿轮泵、液压驱动模块、电机、液压执行器以及信号反馈开关装置；油箱与液压驱动模块连接,齿轮泵安装于油箱内部并与液压驱动模块连通；电机与齿轮泵连接；液压执行器包括阀体、阀盖、齿条、第一油腔、第二油腔、第一油路、第二油路、从动轮；齿条与从动轮啮合,第一油路、第二油路分别连通液压驱动模块与第一油腔、第二油腔；信号反馈开关装置包括开关显示盘以及与开关显示盘连接的凸轮轴,凸轮轴的另一端与从动轮的齿轮轴连接。本发明的有益效果是集成度高,节省占用空间；能快速控制阀门启闭,也能显示阀门的开关情况,并自动控制电机启闭。(The invention discloses an integrated quick response valve electro-hydraulic driving device, which relates to the field of valve control and comprises an oil tank, a gear pump, a hydraulic driving module, a motor, a hydraulic actuator and a signal feedback switch device; the oil tank is connected with the hydraulic driving module, and the gear pump is arranged in the oil tank and communicated with the hydraulic driving module; the motor is connected with the gear pump; the hydraulic actuator comprises a valve body, a valve cover, a rack, a first oil cavity, a second oil cavity, a first oil way, a second oil way and a driven wheel; the rack is meshed with the driven wheel, and the first oil way and the second oil way are respectively communicated with the hydraulic driving module, the first oil cavity and the second oil cavity; the signal feedback switch device comprises a switch display panel and a cam shaft connected with the switch display panel, and the other end of the cam shaft is connected with a gear shaft of the driven wheel. The invention has the advantages of high integration level and space saving; the valve can be rapidly controlled to be opened and closed, the opening and closing conditions of the valve can be displayed, and the motor can be automatically controlled to be opened and closed.)

1. The utility model provides an integration quick response valve electricity liquid drive arrangement which characterized in that: the hydraulic control system comprises an oil tank (1), a gear pump (2), a hydraulic drive module (3), a motor (4), a hydraulic actuator (5) and a signal feedback switch device (6);

the oil tank (1) is connected with the hydraulic drive module (3), and the gear pump (2) is installed inside the oil tank (1) and communicated with the hydraulic drive module (3);

a rotating shaft of the motor (4) is connected with a gear shaft of the gear pump (2);

the hydraulic actuator (5) comprises a valve body (51) and a valve cover (52), a rack (55) which is connected with the inner wall of the valve body (51) in a sliding mode is arranged in the valve body (51), a first oil cavity (53) and a second oil cavity (54) are arranged between the valve body (51) and the rack (55), a first oil way (57) and a second oil way (58) which are communicated with the hydraulic driving module (5) are further arranged in the valve body (51), and the first oil way (57) and the second oil way (58) are respectively communicated with the first oil cavity (53) and the second oil cavity (54); a driven wheel (56) meshed with the rack (55) is further arranged in the valve body (51);

the signal feedback switch device (6) comprises a switch display panel (62) and a cam shaft (64) connected with the switch display panel (62), and the other end of the cam shaft (64) is connected with a gear shaft (561) of the driven wheel (56).

2. The electro-hydraulic driving device of the integrated quick response valve according to claim 1, characterized in that: the signal feedback switch device (6) further comprises a switch limiting sheet (61), a cam (63) and an integrated circuit board (65), wherein the cam (63) is arranged on the cam shaft (64), and the integrated circuit board (65) is electrically connected with the switch limiting sheet (61) and the cam shaft (64); when the driven wheel (56) rotates to drive the valve to be opened or closed in place, the cam (63) rotates along with the cam shaft (64) to contact the switch limiting sheet (61), the switch limiting sheet (61) is communicated with a circuit formed by the cam (63), the cam shaft (64) and the integrated circuit board (65), the integrated circuit board (65) is electrically connected with the motor (4), and the integrated circuit board (65) controls the motor (4) to start or stop.

3. The electro-hydraulic driving device of the integrated quick response valve according to claim 2, characterized in that: the number of the cams (63) is two, the two cams (63) are respectively positioned on two sides of the cam shaft (64), and the two cams (63) are parallel to each other; the number of the switch limiting pieces (61) is two, and the two switch limiting pieces (61) correspond to the two cams (63) respectively in position.

4. The electro-hydraulic driving device of the integrated quick response valve according to claim 1, characterized in that: the hydraulic drive module (5) comprises an oil way A and an oil way B which are respectively communicated with the gear pump (2), a hydraulic control one-way valve A2 used for controlling hydraulic oil to pass through is arranged on the oil way A, a hydraulic control one-way valve B2 used for controlling hydraulic oil to pass through is arranged on the oil way B, and the oil way A and the oil way B are respectively communicated with the first oil way (57) and the second oil way (58).

5. The electro-hydraulic driving device of the integrated quick response valve according to claim 2, characterized in that: the hydraulic drive module (3) further comprises an overflow valve (31) and a hydraulic lock (32).

6. The electro-hydraulic driving device of the integrated quick response valve according to claim 1, characterized in that: and the valve cover (52) is provided with a limiting structure for limiting the moving distance of the rack (55).

7. The electro-hydraulic driving device of the integrated quick response valve according to claim 6, wherein: the limiting structure comprises a stroke screw (591) and a limiting ball (592) mounted at the tail of the stroke screw (591), the stroke screw (591) is arranged in the valve cover (52) in a penetrating mode, and the limiting ball (592) is located in the valve body (51).

8. The electro-hydraulic driving device of the integrated quick response valve according to claim 1, characterized in that: an oil observation port (11) and an oil filling port (12) are arranged on the oil tank (1).

9. The electro-hydraulic driving device of the integrated quick response valve according to claim 1, characterized in that: and an aviation connector (41) is arranged on the motor (4).

10. The electro-hydraulic driving device of the integrated quick response valve according to claim 1, characterized in that: and insulating paint is sprayed on the switch display panel (62).

Technical Field

The invention relates to the field of valve control, in particular to an integrated quick response valve electro-hydraulic driving device.

Background

The electro-hydraulic control valve is a mechanical structure which controls the opening or closing of the valve by driving a hydraulic transmission mechanism to act through a motor, and is widely applied to automatic control systems for storage and transportation of pipelines such as petroleum, chemical engineering, metallurgy, electric power, food and the like as an automatic control execution mechanism.

The defects of the existing electrohydraulic control valve products on the market are obvious, the whole structure of the electrohydraulic control valve is too overstaffed along with the lifting of the torsion force, the occupied space is large, and the response time is longer. In order to solve the technical problems in the engineering application, a valve driving device which has a compact structure and can respond quickly is urgently needed to be designed.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art: the electro-hydraulic valve driving device is compact in structure and capable of responding quickly.

The technical solution of the invention is as follows:

an integrated quick response valve electrohydraulic driving device comprises an oil tank, a gear pump, a hydraulic driving module, a motor, a hydraulic actuator and a signal feedback switch device;

the oil tank is connected with the hydraulic driving module, and the gear pump is arranged in the oil tank and communicated with the hydraulic driving module;

a rotating shaft of the motor is connected with a gear shaft of the gear pump;

the hydraulic actuator comprises a valve body and a valve cover, a rack which is connected with the inner wall of the valve body in a sliding mode is arranged in the valve body, a first oil cavity and a second oil cavity are arranged between the valve body and the rack, a first oil way and a second oil way which are communicated with the hydraulic driving module are further arranged in the valve body, and the first oil way and the second oil way are respectively communicated with the first oil cavity and the second oil cavity; a driven wheel meshed with the rack is further arranged in the valve body;

the signal feedback switch device comprises a switch display panel and a cam shaft connected with the switch display panel, and the other end of the cam shaft is connected with a gear shaft of the driven wheel.

Furthermore, the signal feedback switch device also comprises a switch limiting sheet, a cam and an integrated circuit board, wherein the cam is arranged on the cam shaft, and the integrated circuit board is electrically connected with the switch limiting sheet and the cam shaft; when the driven wheel rotates to drive the valve to be opened or closed in place, the cam rotates along with the cam shaft to contact the switch limiting piece, the switch limiting piece is communicated with a circuit formed by the cam, the cam shaft and an integrated circuit board, the integrated circuit board is electrically connected with the motor, and the integrated circuit board controls the motor to start or stop.

Furthermore, the number of the cams is two, the two cams are respectively positioned on two sides of the cam shaft, and the two cams are parallel to each other; the number of the switch limiting pieces is two, and the two switch limiting pieces correspond to the two cam positions respectively.

Further, the hydraulic drive module comprises an oil path A and an oil path B which are respectively communicated with the gear pump, a hydraulic control one-way valve A2 used for controlling hydraulic oil to pass through is arranged on the oil path A, a hydraulic control one-way valve B2 used for controlling hydraulic oil to pass through is arranged on the oil path B, and the oil path A and the oil path B are respectively communicated with the first oil path and the second oil path.

Further, the hydraulic drive module also comprises an overflow valve and a hydraulic lock.

Furthermore, a limiting structure used for limiting the moving distance of the rack is arranged on the valve cover.

Furthermore, the limiting structure comprises a stroke screw and a limiting ball arranged at the tail of the stroke screw, the stroke screw is arranged in the valve cover in a penetrating mode, and the limiting ball is located in the valve body.

Furthermore, an oil observation port and an oil filling port are arranged on the oil tank.

Further, an aviation connector is mounted on the motor.

Furthermore, insulating paint is sprayed on the switch display panel.

The invention has the beneficial effects that:

1. the invention adopts the structural design that the precise and miniaturized gear pump is arranged in the oil tank, has high integration level and greatly saves the occupied space of the whole mechanism.

2. The invention adopts a high-power micro motor as a power mechanism, and can quickly and stably control the opening of the valve at a constant speed, thereby controlling the flow speed and the flow of a medium flowing through the valve.

3. The integrated quick response valve electrohydraulic driving device not only can quickly realize the opening and closing of the valve, but also is provided with a signal feedback switching device, the opening and closing conditions of the valve can be displayed through the signal feedback switching device, and the starting and the closing of a motor can be automatically controlled through the signal feedback switching device, namely the opening and the closing of the valve are controlled; the invention can also carry out on-off control on the controlled valve by manually operating the rotary miniature gear pump, and the maintenance is simple by combining manual control and automatic control.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial cross-sectional view of the structure of FIG. 1;

FIG. 3 is a partial cross-sectional top view from the left of FIG. 1;

FIG. 4 is a schematic top view of the structure of FIG. 1;

FIG. 5 is a schematic diagram of a hydraulic drive module;

Detailed Description

The present invention will be described in further detail with reference to the following examples, but the present invention is not limited to the following examples.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.