CN108953648B - A multifunctional solenoid valve - Google Patents

Abstract

The invention discloses a kind of multi-function electromagnetic valves, belong to hydraulic system field, including valve body, the cavity through valve body upper/lower terminal is equipped in valve body, valve body is equipped with valve deck, spool is equipped in cavity, fluid channel is equipped in spool, spool upper end is run through in the upper end of fluid channel, and valve deck is run through in spool upper end, spool side wall is equipped with the cartridge outlet being connected to fluid channel, and cavity is equipped with and several fluid outlets compatible with cartridge outlet；Spool lower end is equipped with magnet steel, is equipped with electromagnet and spring on the valve deck inner wall of valve body lower end, spring is abutted with magnet steel；Hydraulic motor is installed on valve outer wall, hydraulic motor is connected with driving gear, fixed gear plate compatible with driving gear is set in the spool outer wall outside cavity, the valve outer wall above fluid outlet is equipped with commutation outlet, and commutation outlet is connect by pipeline with hydraulic motor；Electromagnet is electrically connected with control device.The configuration of the present invention is simple, manufacture maintenance are reliable, easy to adjust.

Description

A multifunctional solenoid valve

technical field

The invention relates to the field of hydraulic systems, in particular to a multifunctional solenoid valve.

Background technique

In hydraulic systems, solenoid valves are widely used. In the prior art, the functions of solenoid valves are mainly reflected in reversing and regulating flow. However, the existing solenoid valves have complex structures, high manufacturing and maintenance costs, and are not conducive to use.

Contents of the invention

Aiming at the problem of complex structure of the solenoid valve in the prior art, the object of the present invention is to provide a multifunctional solenoid valve.

To achieve the above object, the technical solution of the present invention is:

A multi-functional solenoid valve, comprising a valve body, a cavity that runs through the upper and lower ends of the valve body is arranged in the valve body, a valve cover is provided at the upper and lower ends of the valve body, and a valve core is arranged in the cavity , a spring and an electromagnet, the valve core is matched with the cavity, the valve core is provided with a fluid channel parallel to the valve core, the upper end of the fluid channel runs through the upper end of the valve core, and the upper end of the valve core runs through the upper end of the valve body The bonnet, the spool side wall is provided with a spool outlet communicating with the fluid channel, the cavity is provided with a fluid outlet that passes through the valve body and is compatible with the spool outlet, the fluid outlet is provided with a joint, and the fluid There are several outlets, and several fluid outlets are distributed at intervals along the circumference of the valve body; the lower end of the valve core is equipped with a magnetic steel, the electromagnet and spring are installed on the inner wall of the valve cover at the lower end of the valve body, and the electromagnet is located in the spring , the free end of the spring is in contact with the magnetic steel, the valve cover at the lower end of the valve body is provided with an adjusting screw, the free end of the adjusting screw and the spring is provided with a spring base, and the adjusting screw is in contact with the spring base; the valve located outside the cavity A hydraulic motor is installed on the outer wall of the core or the outer wall of the valve, and the hydraulic motor is connected with a driving gear. There is a reversing outlet on the outer wall of the valve, one end of the reversing outlet communicates with the cavity, and the other end is connected to the hydraulic motor through a pipeline. The distance between the reversing outlet and the fluid outlet is greater than the size of the valve core outlet; the electromagnet and The control device is electrically connected, and the control device is used to control the direction and magnitude of the electromagnet energized current.

Preferably, the outlet of the spool is strip-shaped, and the outlet of the spool is parallel to the spool.

Further, the outer wall of the spring base is adapted to the inner wall of the cavity.

Further, the valve core is provided with two annular sealing grooves distributed at intervals, the outlet of the valve core and the fluid outlet are both located between the two annular sealing grooves, and an annular sealing ring is arranged in the annular sealing grooves.

Further, a fluid outlet sealing groove is provided on the inner wall of the cavity, the fluid outlet is located in the fluid outlet sealing groove, and a fluid outlet sealing ring is arranged in the fluid outlet sealing groove.

With the above technical scheme, due to the setting of the axially moving spool, the spool outlet, and the fluid outlet, by adjusting the size of the electromagnet energized current, the spool can overcome the spring resistance to varying degrees, so that the spool outlet and the fluid outlet To achieve different degrees of overlapping, to achieve the purpose of adjusting the flow rate; the setting of the reversing outlet above the fluid outlet, by adjusting the direction of the electromagnet energized current, the valve core can overcome the spring resistance and move in reverse, so that the valve core outlet and the fluid outlet Connected, the fluid flows into the hydraulic motor, and then drives the valve core to rotate relative to the valve body to achieve the purpose of reversing; the electromagnetic valve of the present invention has a simple structure for reversing and flow adjustment, less mechanical movement structures, and low manufacturing and maintenance costs.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

In the figure: 1-valve body, 2-cavity, 3-bonnet, 4-spool, 5-spring, 6-electromagnet, 7-fluid channel, 8-spool outlet, 9-fluid outlet, 10- Magnetic steel, 11-adjusting screw, 12-control device, 13-spring base, 14-ring sealing groove, 15-ring sealing ring, 16-fluid outlet sealing groove, 17-fluid outlet sealing ring, 18-joint, 19- Reversing outlet, 20-hydraulic motor, 21-driving gear, 22-fixed chainring.

Detailed ways

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

As shown in Figure 1, a multi-functional solenoid valve includes a valve body 1, which is provided with a cavity 2 that runs through the upper and lower ends of the valve body 1, and the upper and lower ends of the valve body 1 are provided with valves. A cover 3, a valve core 4, a spring 5 and an electromagnet 6 are arranged in the cavity 2, the valve core 4 is in clearance fit with the cavity 2, and a fluid channel 7 parallel to the valve core 4 is provided in the valve core 4, and the fluid channel 7 The upper end runs through the upper end of the spool 4, and the upper end of the spool 4 runs through the bonnet 3 at the upper end of the valve body 1 to connect with the fluid pipeline. There is a fluid outlet 9 that runs through the valve body 1 and is compatible with the valve core outlet 8. The valve core outlet 8 is strip-shaped, the valve core outlet 8 is parallel to the valve core 4, and the fluid outlet 9 is provided with a joint 18. The present invention Among them, the spool 4 moves axially in the cavity 2 to control the overlapping area of the spool outlet 8 and the fluid outlet 9, thereby realizing flow regulation; there are several valve body outlets 9, and several valve body outlets 9 are arranged along the valve body. Body 1 circumferentially spaced distribution.

Specifically, in the present invention, the other end of the spool 4 is equipped with a magnetic steel 10, the electromagnet 6 and the spring 5 are installed on the inner wall of the valve cover 3 opposite to the other end of the spool 4, the electromagnet 6 is located in the spring 5, and the spring The free end of 5 is in contact with the magnetic steel 10, and the valve cover 3 is provided with an adjusting screw 11, and a spring base 13 is arranged between the free end of the adjusting screw 11 and the spring 5, and the adjusting screw 11 is in contact with the spring base 13, and the spring base 13 It is circular, and the outer wall of the spring base 13 is adapted to the inner wall of the cavity 2; the electromagnet 6 is electrically connected with the control device 12, and the control device 12 is installed on the valve body 1, and the control device 12 is used to control the electromagnet 6 to be energized The magnitude of the current controls the magnitude of the magnetic flux of the electromagnet 6, so that the magnetic steel 10 produces different suction forces, and the spring 5 produces different degrees of deformation, and then controls the overlap between the valve core outlet 8 and the fluid outlet 9, and realizes the flow regulation function.

In order to make the solenoid valve of the present invention reversing, a hydraulic motor 20 is installed on the side wall of the valve body 1 through a bracket, and a driving gear 21 is connected to the hydraulic motor 20. The gear 21 is matched with the fixed toothed plate 22. In order to introduce the power source to the hydraulic motor 20, in the present invention, the side wall of the valve body 1 above the fluid outlet 9 is provided with a reversing outlet 19, and one end of the reversing outlet 19 is connected to the cavity. The body 2 is connected, and the other end is connected to the hydraulic motor 20 through a pipeline. The distance between the reversing outlet 19 and the fluid outlet 9 is greater than the size of the valve core outlet 8. When in use, only need to change the current of the electromagnet 6 to make the valve The spool 4 moves in the opposite direction, so that the spool outlet 8 communicates with the reversing outlet 19, and the fluid flows into the hydraulic motor 20 to drive the spool 4 to rotate, realizing the reversing function.

In order to ensure that the fluid does not leak, the valve core 4 is provided with two annular sealing grooves 14 distributed at intervals. Ring 15, the inner wall of the cavity 2 is provided with a fluid outlet sealing groove 16, the fluid outlet 9 is located in the fluid outlet sealing groove 16, and the fluid outlet sealing groove 16 is provided with a fluid outlet sealing ring 17.

The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions and modifications to these embodiments still fall within the protection scope of the present invention.

Claims (5)

1. A multifunctional solenoid valve, characterized in that: it comprises a valve body, the valve body is provided with a cavity that runs through the upper and lower ends of the valve body, and the upper and lower ends of the valve body are all provided with valve covers, and the valve body is provided with a valve cover. A valve core, a spring and an electromagnet are arranged in the cavity, and the valve core is closely matched with the cavity, and a fluid channel parallel to the valve core is arranged in the valve core, and the upper end of the fluid channel runs through the upper end of the valve core, and the valve core The upper end runs through the bonnet at the upper end of the valve body, and the valve core outlet is provided on the side wall of the valve core, which communicates with the fluid passage. The outlet is provided with joints, and several fluid outlets are arranged at intervals along the circumference of the valve body; the lower end of the valve core is equipped with a magnetic steel, and the electromagnet and spring are installed on the inner wall of the valve cover at the lower end of the valve body , the electromagnet is located in the spring, the free end of the spring is in contact with the magnetic steel, the valve cover at the lower end of the valve body is provided with an adjusting screw, the free end of the adjusting screw and the spring is provided with a spring base, and the adjusting screw is in contact with the spring base A hydraulic motor is installed on the outer wall of the spool outside the cavity or on the outer wall of the valve, the hydraulic motor is connected with a driving gear, and the outer wall of the valve or the outer wall of the spool outside the cavity is set with fixed teeth that match the driving gear. There is a reversing outlet on the outer wall of the valve above the fluid outlet. One end of the reversing outlet is connected to the cavity, and the other end is connected to the hydraulic motor through a pipeline. The distance between the reversing outlet and the fluid outlet is greater than the size of the valve core outlet. ; The electromagnet is electrically connected to the control device, and the control device is used to control the direction and magnitude of the electric current of the electromagnet. 2. The multi-function solenoid valve according to claim 1, characterized in that: the outlet of the spool is strip-shaped, and the outlet of the spool is parallel to the spool. 3. The multifunctional solenoid valve according to claim 1, characterized in that: the outer wall of the spring base matches the inner wall of the cavity. 4. The multifunctional solenoid valve according to claim 1, characterized in that: the valve core is provided with two annular sealing grooves distributed at intervals, and the outlet of the valve core and the fluid outlet are both located between the two annular sealing grooves. Between, an annular sealing ring is arranged in the annular sealing groove. 5. The multifunctional solenoid valve according to claim 1, characterized in that: a fluid outlet sealing groove is provided on the inner wall of the cavity, the fluid outlet is located in the fluid outlet sealing groove, and a fluid outlet sealing groove is provided in the fluid outlet sealing groove. Outlet seal.