CN202134307U

CN202134307U - AC wet type electromagnet for valve

Info

Publication number: CN202134307U
Application number: CN201120209853U
Authority: CN
Inventors: 张明耀
Original assignee: Ningbo Yao Feng Hydraulic Electric Appliance Co Ltd
Current assignee: Ningbo Yao Feng Hydraulic Electric Appliance Co Ltd
Priority date: 2011-06-20
Filing date: 2011-06-20
Publication date: 2012-02-01
Anticipated expiration: 2021-06-20

Abstract

The utility model relates to an AC wet type electromagnet for valve, comprising a shell, a power supply joint, a coil kit, a stop iron, a guide sleeve, a back seat, a push rod, an iron core and a back cover, wherein the coil kit is connected with the shell, the power supply joint is connected with the shell, the back cover is pressed on the right end of the shell, the stop iron is connected with the left end of the shell, the guide sleeve is connected with the stop iron by a magnetism isolation copper ring, the stop iron, the magnetism isolation copper ring and the guide sleeve are inserted into the inner cavity of the coil kit, the left end of the back seat is connected with the guide sleeve, the right end of the back seat is connected with the back cover, the iron core is arranged in the guide sleeve and the magnetism isolation copper ring and axially slides in the guide sleeve, the magnetism isolation copper ring and the push rod is inserted into the through hole of the stop iron, a plurality of axial oil return continuous grooves are uniformly distributed on the wall of the perimeter of the iron core. The AC wet type electromagnet for valve has advantages of quick response speed of the iron core and low generated noise.

Description

AC wet type electromagnet for valve

Technical field

The utility model relates to a kind of electromagnet, specifically is a kind of being installed on the valve body, is used to control the AC wet type electromagnet for valve of the folding or the switching-over of hydraulic circuit.

Background technology

At present, a kind of AC wet type electromagnet for valve is arranged in the prior art, as shown in Figure 4; Comprise shell 6, power connection 5, coil block 4, buting iron 7, guide pin bushing 13, back seat 1, push rod 9, iron core 3 and bonnet 2, coil block 4 is connected in the shell 6, and power connection 5 is connected with shell 6; Bonnet 2 is pressed in the right-hand member of shell 6, and buting iron 7 is connected the left end of shell 6, and guide pin bushing 13 is through being connected with buting iron 7 at a distance from magnetic copper ring 11; Buting iron 7, separated magnetic copper ring 11 all are inserted in the inner chamber of coil block 4 with guide pin bushing 13; Back seat 1 left end is connected with guide pin bushing 13, and back seat 1 right-hand member is connected with bonnet 2, and iron core 3 is positioned at guide pin bushing 13 and also can endwisely slips at guide pin bushing 13 with at a distance from magnetic copper ring 11 at a distance from magnetic copper ring 11; Push rod 9 is inserted in the through hole of buting iron 7, and iron core 3 inside are distributed with four axial oil return through-holes 16.During work, after the coil in the coil block 4 feeds alternating current, generate an electromagnetic field, buting iron 7 can be magnetized; Thereby pull-core 3 is to left movement, and at this moment iron core 3 can clash into push rod 9, and the valve core movement in the push rod 9 meeting promotion ratio valve bodies is controlled the folding or the switching-over of hydraulic circuit; Iron core 3 by the process of adhesive in; Because four axial oil return through-holes 16 have certain distance apart from the periphery wall of iron core 3, so the periphery wall direction that the induced electricities in the iron core 3 fail to be convened for lack of a quorum around iron core 3 produces vortex phenomenon, hinders adhesive; Influence the response speed of iron core 3, and produce bigger noise.

The utility model content

The technical problem that the utility model will solve is to provide a kind of response speed of iron core fast, the AC wet type electromagnet for valve that the noise of generation is little.

The technical solution of the utility model is that a kind of AC wet type electromagnet for valve with following structure is provided: comprise shell, power connection, coil block, buting iron, guide pin bushing, back seat, push rod, iron core and bonnet, coil block connects in the enclosure; Power connection is connected with shell, and bonnet is pressed in the right-hand member of shell, and buting iron is connected the left end of shell; Guide pin bushing is through being connected with buting iron at a distance from the magnetic copper ring; Buting iron, separated magnetic copper ring and guide pin bushing all are inserted in the inner chamber of coil block, and the back seat left end is connected with guide pin bushing, and the back seat right-hand member is connected with bonnet; Iron core is positioned at guide pin bushing and also can endwisely slips at guide pin bushing with at a distance from the magnetic copper ring at a distance from the magnetic copper ring; Push rod is inserted in the through hole of buting iron, wherein, is evenly equipped with a plurality of axial oil return grooves on the iron core outer circle wall.

After adopting above structure, compared with prior art, the utility model AC wet type electromagnet for valve has the following advantages: to be distributed with four axial oil return through-holes different with the core interior of prior art; Owing to be evenly equipped with a plurality of axial oil return grooves on the iron core outer circle wall of the utility model AC wet type electromagnet for valve; Iron core by the process of adhesive in, the path that the induced current in the iron core produces vortex phenomenon is cut off by the axial oil return groove on the outer circle wall, in other words; Be positioned on the iron core outer circle wall just because of axial oil return groove; Induced current in the iron core just can not produce vortex phenomenon, hinders adhesive, therefore; The response speed of iron core is fast, and the noise of generation is less.

Description of drawings

Fig. 1 is that the master of the utility model AC wet type electromagnet for valve looks the sectional structure sketch map;

Fig. 2 is the main TV structure sketch map of the iron core in the utility model AC wet type electromagnet for valve;

Fig. 3 is the right TV structure sketch map of Fig. 2;

Fig. 4 is that the master of prior art AC wet type electromagnet for valve looks the sectional structure sketch map.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model AC wet type electromagnet for valve is described further:

Like Fig. 1, Fig. 2 and shown in Figure 3, in this embodiment, the utility model AC wet type electromagnet for valve comprises shell 6, power connection 5, coil block 4, buting iron 7, guide pin bushing 13, back seat 1, push rod 9, iron core 3 and bonnet 2; Said coil block 4 is connected in the shell 6, and power connection 5 is connected with shell 6 and is electrically connected with coil block 4, and bonnet 2 is pressed in the right-hand member of shell 6; Buting iron 7 is connected the left end of shell 6 through screw, and guide pin bushing 13 is through being connected with buting iron 7 at a distance from magnetic copper ring 11, and buting iron 7, separated magnetic copper ring 11 and guide pin bushing 13 all are inserted in the inner chamber of coil block 4; Guide pin bushing 13 right-hand members also are inserted in the inner chamber of bonnet 2, are provided with sealing ring between guide pin bushing 13 and the bonnet 2, and back seat 1 left end is connected with guide pin bushing 13; Back seat 1 right-hand member is threaded with bonnet 2; Iron core 3 is positioned at guide pin bushing 13 and also can endwisely slips at guide pin bushing 13 with at a distance from magnetic copper ring 11 at a distance from magnetic copper ring 11, is provided with magnetism-isolating loop 10 between iron core 3 and the buting iron 7, and magnetism-isolating loop 10 is connected on the buting iron 7; Push rod 9 is inserted in the through hole of buting iron 7; Iron core 3 left sides are provided with a boss 12 that hardness is higher, in case the iron core 3 of wounding during iron core 3 bump push rods 9 is evenly equipped with two axial oil return grooves 14 on iron core 3 outer circle walls; Be inserted with one in back seat 1 endoporus and be used for manually promoting the hand lever 15 of iron core 3, be provided with sealing ring between hand lever 15 and the back seat 1 to left movement.Described power connection 5, coil block 4 are conventional prior art, so do not give unnecessary details at this.When the utility model AC wet type electromagnet for valve dispatches from the factory, be with over cap 8 on the buting iron 7 left end screw threads, over cap 8 plays protection buting iron 7 left end screw threads and the effect that prevents that dust from getting into, and can it be removed during use.

The operation principle of the utility model AC wet type electromagnet for valve is: behind the coil electricity in the coil block 4, produce magnetic field; Buting iron 7 can be magnetized; Thereby pull-core 3 is to left movement; At this moment iron core 3 can clash into push rod 9, and the folding or the switching-over of hydraulic circuit are controlled in the motion of the spool (not shown) in the push rod 9 meeting promotion ratio valve bodies.

Above-described embodiment describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that those of ordinary skills make the technical scheme of the utility model all should fall in the protection range of the utility model.

Claims

1. AC wet type electromagnet for valve; Comprise shell (6), power connection (5), coil block (4), buting iron (7), guide pin bushing (13), back seat (1), push rod (9), iron core (3) and bonnet (2); Said coil block (4) is connected in the shell (6), and power connection (5) is connected with shell (6), and said bonnet (2) is pressed in the right-hand member of shell (6); Said buting iron (7) is connected the left end of shell (6); Said guide pin bushing (13) is through being connected with buting iron (7) at a distance from magnetic copper ring (11), and said buting iron (7), separated magnetic copper ring (11) all are inserted in the inner chamber of coil block (4) with guide pin bushing (13), and said back seat (1) left end is connected with guide pin bushing (13); Said back seat (1) right-hand member is connected with bonnet (2); Said iron core (3) is positioned at guide pin bushing (13) and also can endwisely slips at guide pin bushing (13) with at a distance from magnetic copper ring (11) at a distance from magnetic copper ring (11), and said push rod (9) is inserted in the through hole of buting iron (7), it is characterized in that: be evenly equipped with a plurality of axial oil return grooves (14) on said iron core (3) outer circle wall.