Yoke assembly

Abstract

The utility model provides a yoke iron assembly, relates to electromagnet yoke iron technical field, including yoke iron beam plate, the upper side of yoke iron beam plate is provided with the slip through groove, the slip through groove is symmetrically slip connected with the movable contact spring, the movable contact spring includes the one-piece slip portion and vertical portion, the slip portion is slip installed on the slip through groove, and the vertical portion is installed on the slip through groove. The vertical parts are arranged on the two sides of the yoke beam plate and extend downwards in the direction perpendicular to the yoke beam plate, the sliding part extends to form a sliding rack in the direction facing the movable contact spring on the other side, an iron core sleeve is rotationally connected to the middle of the yoke beam plate, and a driving gear ring is fixed to the outer edge of the iron core sleeve. The two sliding racks are symmetrically engaged with the two sides of the driving gear ring, the sliding part is provided with a guide groove hole, and a positioning bolt is arranged in the guide groove hole in a sliding and penetrating mode. According to the utility model, the movable reeds can slide synchronously in opposite directions by rotating the iron core sleeve, so that the air gap between the movable reeds and the coil is changed, and the normal operation of the electromagnet is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnet yokes, in particular to a yoke assembly. Background Art

[0002] The yoke is an important component of the electromagnet. Together with the armature of the electromagnet, it forms a closed magnetic circuit, so that the magnetic lines of force generated by the electromagnetic coil are enclosed inside, thereby making full use of the magnetic energy of the electromagnetic coil and improving the efficiency of the electromagnet. The function of the yoke is to reduce the magnetic resistance, make the magnetic field more concentrated, and enhance the attraction of the electromagnet.

[0003] The yoke and the air gap in the coil together constitute a part of the electromagnet. The design and optimization of the air gap in the yoke and the coil are crucial to improving the performance of the electromagnet. The air gap in the yoke and the coil together affect the performance of the electromagnet, including the size of the attraction, the smoothness of the movement, and the noise level. By optimizing the design and adjusting these parameters, the performance and reliability of the electromagnet can be improved. If the air gap is too small, the residual magnetic force may be too large, causing the armature to accidentally attract. If the air gap is too large, it may cause a significant reduction in the magnetic force.

[0004] The existing yoke is usually an integrated structure, and the air gap between the yoke and the coil is fixed. During the operation of the electromagnet, an inappropriate air gap will affect the symmetry of the magnetic circuit, and then affect the suction distribution of the armature on the yoke, generating additional vibration and noise when the electromagnet is running. Therefore, a yoke assembly with an adjustable air gap size is required to meet the normal operation of the electromagnet. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a yoke assembly to solve the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A yoke assembly comprises a yoke beam plate, a lead-out end is arranged on the yoke beam plate, a sliding groove is arranged on the upper side of the yoke beam plate, a movable spring is symmetrically slidably connected to the sliding groove, the movable spring comprises an integrally formed sliding portion and a vertical portion, the sliding portion is slidably installed on the sliding groove, the vertical portion is arranged on both sides of the yoke beam plate and extends downward perpendicular to the yoke beam plate, a sliding rack is extended from the sliding portion toward the direction of the movable spring on the other side, an iron core sleeve is rotatably connected to the middle part of the yoke beam plate, a driving gear ring is fixed to the outer edge of the iron core sleeve, and two sliding racks are symmetrically meshed on both sides of the driving gear ring.

[0010] Preferably, the sliding portion is provided with a guide slot hole, a positioning bolt is slidingly penetrated in the guide slot hole, the positioning bolt is threadedly connected to the yoke beam plate, and a support spring is provided between the positioning bolt and the sliding portion.

[0011] Preferably, a sliding groove is provided on a side of the sliding rack away from the driving gear ring, a sliding rod is provided on the sliding portion, and the sliding rod on one of the movable spring pieces is slidably arranged in a concave-convex fit with the sliding groove on the other movable spring piece.

[0012] Preferably, a cross-shaped inwardly concave groove is provided on the inner wall of the core sleeve.

[0013] Preferably, a damping bow piece is fixed to the lower side of the driving gear ring, and the damping bow piece abuts against the upper side of the yoke beam plate.

[0014] (III) Beneficial effects

[0015] The utility model provides a yoke assembly having the following beneficial effects:

[0016] 1. In the utility model, the core sleeve can be rotated on the yoke iron beam plate through the cross-shaped concave rotating groove, and the moving spring can be synchronously slid in opposite directions through the driving gear ring on the core sleeve to adjust the distance between the moving spring and the coil, that is, the air gap. The appropriate air gap can be adjusted to prevent the electromagnet from operating normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a yoke assembly of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the yoke iron beam plate in the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the movable spring in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the iron core sleeve in the utility model.

[0021] In the figure: 1, yoke iron beam plate; 2, lead-out end; 3, moving spring; 31, sliding part; 32, vertical part; 4, sliding rack; 5, sliding rod; 6, iron core sleeve; 7, driving gear ring; 8, positioning bolt; 9, concave spiral groove. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The utility model embodiment provides a yoke assembly,

[0024] like Figure 1-4 As shown, it includes a yoke beam plate 1, a yoke support rod is bent downward at the front end of one side of the yoke beam plate 1, and a lead-out end 2 is provided on the yoke beam plate 1 and the yoke support rod, a sliding groove is provided on the upper side of the yoke beam plate 1, and a moving spring 3 is symmetrically slidably connected to the sliding groove, and the moving spring 3 includes an integrally formed sliding portion 31 and a vertical portion 32, the sliding portion 31 is slidably installed on the sliding groove, the vertical portion 32 is arranged on both sides of the yoke beam plate 1 and extends downward perpendicularly to the yoke beam plate 1, and a moving contact mounting hole and an armature mounting hole are provided on the vertical portion 32, and a sliding rack 4 is extended from the sliding portion 31 toward the direction of the moving spring 3 on the other side, and a sliding groove is provided on the side of the sliding rack 4 away from the driving gear ring 7, and a sliding rod 5 is provided on the sliding portion 31, and one of the sliding rods on the moving spring 3 5 is slidably arranged with the sliding groove on the other movable spring piece 3 in a concave-convex matching manner. The sliding rods 5 and the sliding grooves on the two movable spring pieces 3 are butted against each other, which can play a guiding role, so that the sliding rack 4 can slide smoothly on the sliding rod 5. A core sleeve 6 is rotatably connected to the middle part of the yoke iron beam plate 1. The core sleeve 6 is provided with two upper and lower positioning rings. The two positioning rings are respectively in contact with the upper and lower sides of the yoke iron beam plate 1 to play the role of positioning the core sleeve 6. A driving gear ring 7 is fixed to the outer edge of the core sleeve 6. The two sliding racks 4 are symmetrically meshed on both sides of the driving gear ring 7. Rotating the driving gear ring 7 can make the sliding racks 4 symmetrically meshed on both sides of the driving gear ring 7 slide synchronously oppositely, and synchronously reduce or expand the spacing of the vertical portion 32 of the movable spring piece 3, so as to change the size of the air gap between the vertical portion 32 and the coil.

[0025] It is further configured that the sliding portion 31 is provided with a guide slot hole, a positioning bolt 8 is slidingly penetrated in the guide slot hole, the positioning bolt 8 is threadedly connected to the yoke beam plate 1, a supporting spring is provided between the positioning bolt 8 and the sliding portion 31, and the guide slot hole can provide displacement for the horizontal sliding spring leaf 3.

[0026] It is further configured that a cross-shaped concave groove 9 is provided on the inner wall of the core sleeve 6, and the concave groove 9 can facilitate the use of a screwdriver to screw the core sleeve 6. A damping bow piece is fixed to the lower side of the driving gear ring 7, and the damping bow piece is in contact with the upper side of the yoke iron beam plate 1. The damping bow piece provides rotational resistance for the core sleeve 6 to prevent the core sleeve 6 from loosening due to the extrusion force from the vertical part 32 of the movable spring piece 3 in the horizontal direction of the coil when the core sleeve 6 is in a free state.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A yoke assembly, comprising a yoke beam plate, on which a lead-out terminal is arranged, characterized in that: A sliding groove is provided on the upper side of the yoke beam plate, and a movable spring is symmetrically slidingly connected to the sliding groove. The movable spring includes an integrally formed sliding portion and a vertical portion. The sliding portion is slidingly installed on the sliding groove, and the vertical portion is provided on both sides of the yoke beam plate and extends downward perpendicular to the yoke beam plate. A sliding rack is extended from the sliding portion toward the direction of the movable spring on the other side. A core sleeve is rotatably connected to the middle part of the yoke beam plate, and a driving gear ring is fixed to the outer edge of the core sleeve. The two sliding racks are symmetrically meshed on both sides of the driving gear ring.

2. A yoke assembly according to claim 1, characterized in that: The sliding part is provided with a guide slot hole, a positioning bolt is slidingly penetrated in the guide slot hole, the positioning bolt is threadedly connected to the yoke iron beam plate, and a support spring is provided between the positioning bolt and the sliding part.

3. A yoke assembly according to claim 2, characterized in that: A sliding groove is provided on one side of the sliding rack away from the driving gear ring, and a sliding rod is provided on the sliding portion, wherein the sliding rod on one of the movable spring pieces is slidably arranged in a concave-convex matching manner with the sliding groove on the other movable spring piece.

4. A yoke assembly according to claim 3, characterized in that: A cross-shaped inwardly concave groove is arranged on the inner wall of the core sleeve.

5. A yoke assembly according to claim 4, characterized in that: A damping bow piece is fixed to the lower side of the driving gear ring, and the damping bow piece abuts against the upper side of the yoke beam plate.

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