CN104315227A - Electromagnet for driving hydraulic valve - Google Patents

Abstract

The invention discloses an electromagnet for driving a hydraulic valve. The electromagnet for driving the hydraulic valve comprises an electromagnet body and the hydraulic valve, wherein the hydraulic valve comprises a valve body, and a valve core arranged in the valve body; the electromagnet body comprises a cylindrical casing, a winding drum, an exciting coil, an armature piston, a polar tube, a starting pin, a pole core and an end cover; the pole core comprises a disc-shaped bottom plate, and a cylindrical convex column extending on the top surface of the bottom plate; the side peripheral surface of the disc-shaped bottom plate is adhered to the casing; the top end of the cylindrical convex column is arranged in a shaft hole of the winding drum; the starting pin axially penetrates through the disc-shaped bottom plate and the cylindrical convex column; an annular groove is formed in the side peripheral surface of the disc-shaped bottom plate; an O-shaped sealing ring is arranged in the annular groove; the casing is provided with a convex ring bulging to the annular groove and used for extruding the O-shaped sealing ring in a position corresponding to the annular groove. The electromagnet has a simple structure, is low in manufacture cost, and has good sealing performance and high impedance.

Description

For driving the electromagnet of hydrovalve

Technical field

The present invention relates to the electromagnet for driving hydrovalve.

Background technique

The existing electromagnet for actuating valve, the resistance that must resistance be used larger just can make it meet usage requirement, and will seal outside housing, and in the using process of valve, sealing particular importance, compare conventional valve, its cost is higher.

Summary of the invention

The object of the present invention is to provide a kind of for driving the electromagnet of hydrovalve, its structure simple and, manufacture cost is lower, and has good sealing and larger impedance.

For achieving the above object, technological scheme of the present invention is that design is a kind of for driving the electromagnet of hydrovalve, comprises electromagnet and hydrovalve;

Described hydrovalve comprises: valve body, is located at the spool in valve body;

Described electromagnet comprises: the cylindrical housing body being fixed on valve end, be fixed on frame inner and with the reel of the coaxial heart of frame, be wound in reel periphery and field coil for driving armature piston to move axially, be arranged at the armature piston in reel axis hole, the pole be located between armature piston outer periphery and reel shaft hole inner wall is managed, be fixed on armature pistons end and startup pin for axially promoting spool, be fixed on frame bottom open end and with valve body end face recline pole core, be fixed on the end cap of frame open top end;

Described pole core comprises: discoid base plate, extends the cylindrical projection of plate top surface; Described discoid base plate lateral circle surface and frame recline; Described circular cylindrical projection capital end is inserted in reel axis hole; Described startup bearing pin is to running through discoid base plate and cylindrical projection;

Described discoid base plate lateral circle surface is provided with annular groove, is provided with O RunddichtringO, described frame in this annular groove, in the position that it is corresponding with annular groove, is provided with and protrudes and bulge loop for extruding O RunddichtringO to annular groove.

Advantage of the present invention and beneficial effect are: provide a kind of for driving the electromagnet of hydrovalve, its structure simple and, manufacture cost is lower, and has good sealing and larger impedance.

Accompanying drawing explanation

Fig. 1 is schematic diagram of the present invention.

Embodiment

Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only for technological scheme of the present invention is clearly described, and can not limit the scope of the invention with this.

The technological scheme that the present invention specifically implements is:

As shown in Figure 1, a kind of for driving the electromagnet of hydrovalve, comprise electromagnet and hydrovalve;

Described hydrovalve comprises: valve body 11, is located at the spool 12 in valve body 11;

Described electromagnet comprises: the cylindrical housing body 21 being fixed on valve body 11 end, be fixed on frame 21 inner and with the reel 22 of the coaxial heart of frame 21, be wound in reel 22 periphery and field coil 23 for driving armature piston 24 to move axially, be arranged at the armature piston 24 in reel 22 axis hole, be located at the pole pipe 30 between armature piston 24 periphery and reel 22 shaft hole inner wall, be fixed on armature piston 24 end and startup pin 25 for axially promoting spool 12, be fixed on frame 21 bottom open end and with valve body 11 end face recline pole core 26, be fixed on the end cap 27 of frame 21 open top end,

Described pole core 26 comprises: discoid base plate 261, extends the cylindrical projection 262 of base plate 261 end face; Described discoid base plate 261 lateral circle surface and frame 21 recline; Described cylindrical projection 262 top is inserted in reel 22 axis hole; Described startup pin 25 axially runs through discoid base plate 261 and cylindrical projection 262;

Described discoid base plate 261 lateral circle surface is provided with annular groove, is provided with O RunddichtringO 28 in this annular groove, described frame 21, in the position that it is corresponding with annular groove, is provided with and protrudes and bulge loop 29 for extruding O RunddichtringO 28 to annular groove.

The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (1)

1. for driving the electromagnet of hydrovalve, it is characterized in that, comprising electromagnet and hydrovalve;

Described hydrovalve comprises: valve body, is located at the spool in valve body;

Described electromagnet comprises: the cylindrical housing body being fixed on valve end, be fixed on frame inner and with the reel of the coaxial heart of frame, be wound in reel periphery and field coil for driving armature piston to move axially, be arranged at the armature piston in reel axis hole, the pole be located between armature piston outer periphery and reel shaft hole inner wall is managed, be fixed on armature pistons end and startup pin for axially promoting spool, be fixed on frame bottom open end and with valve body end face recline pole core, be fixed on the end cap of frame open top end;

Described pole core comprises: discoid base plate, extends the cylindrical projection of plate top surface; Described discoid base plate lateral circle surface and frame recline; Described circular cylindrical projection capital end is inserted in reel axis hole; Described startup bearing pin is to running through discoid base plate and cylindrical projection;

Described discoid base plate lateral circle surface is provided with annular groove, is provided with O RunddichtringO, described frame in this annular groove, in the position that it is corresponding with annular groove, is provided with and protrudes and bulge loop for extruding O RunddichtringO to annular groove.