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Electromagentic switching apparatus

An electromagnet switch, switch technology, applied in the direction of electromagnets, electromagnets with armatures, fluid pressure actuation devices, etc.

Inactive Publication Date: 2007-03-07
CATERPILLER GLOBAL MINING EURO GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantage is that known switching devices require a lever

Method used

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  • Electromagentic switching apparatus
  • Electromagentic switching apparatus
  • Electromagentic switching apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Fig. 1 shows a square electromagnet housing 1 with two electromagnets 10A, 10B, and the two electromagnets are made the same as each other and are respectively installed in a mounting hole 2. The electromagnet includes a cylindrical coil body 3, an available coil Body 3 magnetized iron core 4 , an axially movable armature 5 and a switch lever 6 . The switch bar 6 that is preferably made into one has a switch end 7 below Fig. 1 and an operating end 8 above, and the switch bar is made into a plurality of steps and is provided with an external thread 11 on the middle section 9, which is preferably Made into a fine thread with a very small pitch, the switch lever 6 is screwed into a blind hole on the armature 5 with the external thread 11 on the middle section 9, and the blind hole is made into multiple steps, and from its upper end surface 13 Starting is equipped with an internal thread 14, and its pitch matches the pitch of the external thread 11. Here the switch rod 6 p...

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PUM

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Abstract

An electromagnet switching device for hydraulic or electrohydraulic directional control valves, especially applied in advancing supports of underground mining equipment with controllable electromagnets (10A, 10B) accommodated in a case (1) and comprising armature (5), coil bodies (3), magnetisable core (4) and switching plunger (6), whose switching plunger (6) has a switching end(7) which can be coupled to the closing element of a hydraulic valve (33A, 33B) and an actuating end (8) for manual operation, whereby the effective switching lift of the switching plunger (6) is adjustable. The switching plunger (6) is joined to the armature (5) by means of a screwed connection and adjustment of the switching lift is facilitated by a relative rotation between the armature (5) and the switching plunger (6).

Description

technical field [0001] The invention relates to an electromagnetic switching device for hydraulic or electrohydraulic directional valves, in particular for use in walking brackets in underground excavation equipment, having a controllable, contained in a housing and comprising an armature , a coil body, a magnetizable iron core and an electromagnet for a switch rod, the switch rod has a switch end that can be connected to the closing body of the hydraulic valve and an operating end for hand operation, wherein the switch acting on the closing body The switch stroke of the lever is adjustable. Background technique [0002] DE 3823681 A1 discloses a switching device of this type in which a hydraulic valve, such as a servo valve, is operated by an operating lever which is hinged at one end and acts on the switching end of the switching rod at its free end. In order to adjust the armature, it is designed as an adjusting shaft and connected in a rotationally locked manner with an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02E21D15/48H01F7/06E21D23/16F15B13/044H01F7/16
CPCF15B13/044H01F7/1607E21D23/16Y10T137/7504Y10T137/7668
Inventor 沃尔夫冈·科博尔迈克尔·戴特默斯
Owner CATERPILLER GLOBAL MINING EURO GMBH