CN203607185U

CN203607185U - Rotary electromagnet

Info

Publication number: CN203607185U
Application number: CN201320732644.0U
Authority: CN
Inventors: 张素萍; 韩文明; 刘生峰
Original assignee: Zhengzhou Aircraft Equipment Co Ltd
Current assignee: Zhengzhou Aircraft Equipment Co Ltd
Priority date: 2013-11-20
Filing date: 2013-11-20
Publication date: 2014-05-21
Anticipated expiration: 2023-11-20

Abstract

The utility model discloses a rotary electromagnet which is composed a magnetic yoke, an iron core, an armature, a coil and a ball. The yoke is of an inverted-U-shaped structure with the top face provided with an insertion hole. The top face of the yoke of the inverted-U-shaped structure is evenly provided with arc grooves with upper openings, wherein the arc grooves are distributed in the peripheral direction. The center lines of the arc grooves with the upper openings are of helix structures relative to longitudinal center lines. The iron core is a first step shaft arranged in the yoke of the inverted-U-shaped structure and provided with a center hole. The armature is a second step shaft, wherein the diameter of the upper end of the second step shaft is larger than that of the lower end of the second step shaft. The small-diameter end of the second step shaft is inserted into the insertion hole of the yoke from the position above the yoke of the inverted-U-shaped structure. The positions, corresponding to the arc grooves with the upper openings, of the lower step face of the large-diameter end of the second step shaft are provided with arc grooves with lower openings respectively. Balls are located in roller paths composed of the arc grooves with the upper openings and the arc groove with the lower openings. The coil is arranged on the first step shaft and the second step shaft located in the yoke of the inverted-U-shaped structure in a sleeved mode. The rotary electromagnet outputs larger torque compared with an existing rotary electromagnet.

Description

Rotary magnet

Technical field

The utility model relates to electromagnet, especially relates to rotary magnet.

Background technology

At present, existing rotary magnet is characterized in after coil electricity, the direction of motion of armature is perpendicular to the direction of the magnetic line of force, its economy is poor compared with beating type electromagnet, in the time doing same mechanical power, its volume and weight is larger than beating type electromagnet, and the power that coil needs is also larger, in the situation that some loading moments requirements are larger, can not meet the demands.

Summary of the invention

The rotary magnet that provides a kind of load capacity strong is provided the utility model object.

For achieving the above object, the utility model is taked following technical proposals:

Rotary magnet described in the utility model, is made up of yoke, iron core, armature, coil, ball; Described yoke is the structure of falling U that end face has jack, the end face of the described structure of falling U yoke is uniform offers multiple upper shed arc grooves that along the circumferential direction distribute, the cross section of described upper shed arc groove is circular-arc, the center line of upper shed arc groove is helix structure with respect to longitudinal centre line, and the two ends of upper shed arc groove are the sphere tangent with its groove bottom; Described iron core is to be arranged on the first step axle that offers centre bore in the structure of falling U yoke, and the upper end diameter of described first step axle is less than lower end diameter; Described armature is the second step axle that a upper end diameter is greater than lower end diameter, and the smaller diameter end of described second step axle is plugged in its jack from the structure of falling U yoke top; The larger diameter end following table of second step axle offers respectively the under shed arc groove identical with upper shed arc groove structure corresponding to described multiple upper shed arc grooves position, and described ball is positioned at the raceway that upper and lower opening arc groove forms; The larger diameter end top end face of second step axle studs with straight pin; Second step axle has centre bore, and this center-hole diameter is less than first step axle centre bore; First step axle, second step axle connect by the 3rd Step Shaft in its centre bore of plug-in mounting; Described the 3rd Step Shaft be connected with the stationary fit of second step axle centre bore and with first step axle centre bore in moving being connected of lining; Between the relative end face of first, second Step Shaft, be provided with gap; Described mounting coil is on first, second Step Shaft that is positioned at the structure of falling U yoke.

The utility model is compared with existing rotary magnet, and structure is simpler, and the in the situation that of same volume, weight and power, output torque is large.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the plan structure schematic diagram of Fig. 1.

Embodiment

As shown in Figure 1, 2, rotary magnet described in the utility model, is made up of yoke 1, iron core 2, armature 9, coil 7, ball 10; Described yoke 1 has the structure of falling U of jack for end face, the end face of the described structure of falling U yoke 1 is uniform offers three upper shed arc grooves that along the circumferential direction distribute, the cross section of described upper shed arc groove is circular-arc, the center line 13 of upper shed arc groove is helix structure with respect to longitudinal centre line 11, and the two ends of upper shed arc groove are the sphere tangent with its groove bottom; Described iron core 2 is for to be arranged on the first step axle that offers centre bore in the structure of falling U yoke 1, and the upper end diameter of described first step axle is less than lower end diameter; Described armature 9 is the second step axle that a upper end diameter is greater than lower end diameter, and the smaller diameter end of described second step axle is plugged in its jack from the structure of falling U yoke 1 top; The larger diameter end following table of second step axle offers respectively the under shed arc groove identical with upper shed arc groove structure corresponding to described three upper shed arc groove positions, and described ball 10 is positioned at the raceway that upper and lower opening arc groove forms; The larger diameter end top end face of second step axle studs with straight pin 8; Second step axle has centre bore, and this center-hole diameter is less than first step axle centre bore; First step axle, second step axle connect by the 3rd Step Shaft 4 in its centre bore of plug-in mounting; Described the 3rd Step Shaft 4 be connected with the stationary fit of second step axle centre bore and with first step axle centre bore in moving being connected of lining 3, and locate by the back-up ring 5, the packing ring 6 that are arranged on the 3rd Step Shaft 4 lower ends; Between the relative end face of first, second Step Shaft, be provided with gap 12; Described coil 7 gaps are sleeved on first, second Step Shaft that is positioned at the structure of falling U yoke 1.

When use, loading moment is added on electromagnet by straight pin 8, the raceway helical rotation opposite direction that moment direction and upper and lower opening arc groove form, in the time that coil 7 is switched on, armature 9 produces suction vertically downward, because ball 10 moves along the spiral rolling track on armature 9, and make armature 9 in moving downward, turn over certain angle.

Claims

1. a rotary magnet, is made up of yoke (1), iron core (2), armature (9), coil (7), ball (10); It is characterized in that: described yoke (1) has the structure of falling U of jack for end face, the end face of the described structure of falling U yoke (1) is uniform offers multiple upper shed arc grooves that along the circumferential direction distribute, the cross section of described upper shed arc groove is circular-arc, the center line (13) of upper shed arc groove is helix structure with respect to longitudinal centre line (11), and the two ends of upper shed arc groove are the sphere tangent with its groove bottom; For to be arranged on the first step axle that offers centre bore in the structure of falling U yoke (1), the upper end diameter of described first step axle is less than lower end diameter to described iron core (2); Described armature (9) is the second step axle that a upper end diameter is greater than lower end diameter, and the smaller diameter end of described second step axle is plugged in its jack from the structure of falling U yoke (1) top; The larger diameter end following table of second step axle offers respectively the under shed arc groove identical with upper shed arc groove structure corresponding to described multiple upper shed arc grooves position, and described ball (10) is positioned at the raceway that upper and lower opening arc groove forms; The larger diameter end top end face of second step axle studs with straight pin (8); Second step axle has centre bore, and this center-hole diameter is less than first step axle centre bore; First step axle, second step axle connect by the 3rd Step Shaft (4) in its centre bore of plug-in mounting; Described the 3rd Step Shaft (4) be connected with the stationary fit of second step axle centre bore and with first step axle centre bore in moving being connected of lining (3); Between the relative end face of first, second Step Shaft, be provided with gap (12); Described coil (7) is sleeved on first, second Step Shaft that is positioned at the structure of falling U yoke (1).