CN205689636U - Micro Magnetic Powder Clutch - Google Patents

Abstract

A miniature magnetic powder clutch comprises a rotary drum, a rotary drum check ring, a clutch rotor shaft, a clutch rotor, a rotary drum gland, a left coil base, a rubber wire head, a plastic rubber coil die, a right coil base, a copper coil, rotor two-end check rings and rotary drum gland check rings, wherein the rotary drum gland is connected with the right end of the rotary drum, the clutch rotor shaft is arranged inside the rotary drum, the rotary drum check ring is connected with the side wall inside the rotary drum, the clutch rotor is connected with the right side of the rotary drum check ring, the rotary drum gland check ring is arranged at the left end of the rotary drum gland, the rotary drum gland check ring is connected with the right end of the clutch rotor, the rotor check rings are arranged on the end surfaces of the two ends of the clutch rotor, the rotary drum check ring, the rotor two-end check rings and the rotary drum gland check rings are formed, The magnetic gap space is formed by the rotor retainer ring and the circumferential groove of the rotor, and magnetic powder is arranged in the magnetic gap space.

Description

Micro Magnetic Powder Clutch

technical field

The utility model relates to the field of clutches, in particular to a miniature magnetic powder clutch.

Background technique

The miniature magnetic powder clutch is a clutch device based on electromagnetic principles and using magnetic powder to transmit torque. It has the advantages of fast response, no pollution, no noise, no shock vibration, and energy saving. It is widely used in printing, packaging, papermaking, and textile fields. In the prior art, when the active component of the miniature magnetic powder clutch is rotating, the gap of the oil seal becomes larger with long-term use and friction, which is prone to magnetic powder leakage and causes the bearing to be stuck, thereby affecting the service life of the miniature magnetic powder clutch.

Contents of the invention

The utility model aims at the above-mentioned deficiencies in the prior art, and provides a miniature magnetic powder clutch with stronger tension and less leakage of magnetic powder.

The purpose of this utility model is to realize through the following technical solutions:

A miniature magnetic powder clutch, including a rotating cylinder, a rotating cylinder retaining ring, a clutch rotor shaft, a clutch rotor, a rotating cylinder gland, a left coil seat, a glue thread head, a plastic coil mold, a right coil seat, a copper coil, and retaining rings at both ends of the rotor . Revolving cylinder gland retaining ring, the revolving cylinder gland is connected to the right end of the revolving cylinder, the interior of the revolving cylinder has a clutch rotor shaft, the internal side wall of the revolving cylinder is connected to the revolving cylinder retaining ring, and the right side of the revolving cylinder retaining ring Connect the clutch rotor, the left end of the drum gland has a drum gland retaining ring, the drum gland retaining ring is connected to the right end of the clutch rotor, the two ends of the clutch rotor have rotor retaining rings, and the rotating drum retaining ring , The retaining ring at both ends of the rotor and the retaining ring of the drum gland are stamped and added by non-magnetic metal materials or processed integrally. The circumferential surface of the clutch rotor has a circumferential groove. A magnetic gap space formed by the gland retaining ring, the rotor retaining ring and the circumferential groove of the rotor, the magnetic powder is inside the magnetic gap space.

The outer side of the left end of the drum is connected to the inner side of the left coil seat through the left outer bearing, and the outer side of the drum gland is connected to the inner side of the right end of the right coil seat through the right outer bearing. The outer circlip is connected to the right outer bearing side wall, the right coil seat is connected to the left coil seat, the right coil seat and the left coil seat have notch positions, the notch positions are connected to the swivel, and the left coil seat has a bottom The glue wire head, the inside of the left coil seat and the outside of the right coil seat form an annular groove, the inside of the ring groove has a plastic coil mold, and the inside of the plastic coil mold has a copper coil, and the wire of the copper coil passes through the glue wire head .

There is a left oil seal on the left side of the drum, the left oil seal is connected to the left inner bearing, and the left inner bearing is connected to the left outer circlip, and the right side of the drum gland is provided with a right oil seal, and the right oil seal is connected to the right inner bearing , the right inner bearing is connected to the right outer circlip, and the clutch rotor shaft passes through the left outer circlip, left inner bearing, left oil seal, drum, clutch rotor, drum gland, right oil seal, right inner bearing, Right outer circlip, the material of the clutch rotor shaft is made of stainless steel, and the front end of the clutch rotor shaft has a milling square.

Beneficial effect:

The drum gland is connected to the right end of the drum, and the drum and the drum gland are combined into one body after being pressed tightly. The inside of the drum has a clutch rotor shaft, and the inner side wall of the drum is connected to the drum retaining ring. It is stamped and formed from a non-magnetic metal material and installed on the drum. The right side of the drum retaining ring is connected to the clutch rotor. The left end of the drum gland has a drum gland retaining ring. The drum gland The retaining ring is connected to the right end of the clutch rotor, and the two ends of the clutch rotor have rotor retaining rings, and the drum retaining ring, the rotor retaining ring at both ends, and the drum gland retaining ring are stamped and formed by non-magnetic metal materials. Or integrally processed and formed, there is a circumferential groove on the circumferential surface of the clutch rotor, the magnetic gap space formed by the drum retaining ring, the drum gland retaining ring, the rotor retaining ring, and the circumferential groove of the rotor, the inside of the magnetic gap space With magnetic powder. The magnetic powder in this magnetic gap space is blocked by the mutual cooperation of the drum retaining ring, drum gland retaining ring and rotor retaining ring, so that the magnetic powder is not easy to leak to the oil seal, which can effectively reduce the failure of the product during operation. rate and increase the service life of the product. The outer side of the left end of the drum is connected to the inner side of the left coil seat through the left outer bearing, and the outer side of the drum gland is connected to the inner side of the right end of the right coil seat through the right outer bearing. The inside of the left coil seat and the outside of the right coil seat form an annular groove. There is a plastic coil mold inside the annular groove, and there is a copper coil inside the plastic coil mold. The copper coil is wrapped around the plastic coil mold with an enamelled copper wire, and the wire of the copper coil passes through the glue wire head. The clutch rotor shaft passes through the left outer circlip, left inner bearing, left oil seal, drum, clutch rotor, drum gland, right oil seal, right inner bearing, and right outer circlip in turn. This kind of miniature magnetic powder clutch is not easy to leak powder, Its service life and stability are superior to existing technologies, and its service life is 12 to 18 months longer than the current miniature magnetic powder clutch.

Description of drawings

Fig. 1 is a structural schematic diagram of the miniature magnetic powder clutch described in the utility model.

Fig. 2 is a schematic diagram of the disassembled structure of the miniature magnetic powder clutch described in the present invention.

Fig. 3 is a schematic diagram of the cross-sectional structure of the rotary drum described in the present invention.

Fig. 4 is a schematic cross-sectional structure diagram of the drum gland described in the present invention.

Fig. 5 is a schematic cross-sectional structure diagram of the clutch rotor described in the present invention.

detailed description

A miniature magnetic powder clutch, including a rotating cylinder 1, a rotating cylinder retaining ring 2, a clutch rotor shaft 3, a clutch rotor 7, a rotating cylinder gland 8, a left coil seat 13, a glue thread head 14, a plastic coil mold 15, and a right coil seat 16 , copper coil 19, retaining rings 21 at both ends of the rotor, and retaining ring 22 for the drum gland, the drum gland 8 is connected to the right end of the drum 1, and the drum 1 and the drum gland 8 are compressed and combined into one, so The drum 1 has a clutch rotor shaft 3 inside, and the inner side wall of the drum 1 is connected to the drum retaining ring 2, and the rotating drum retaining ring 2 is stamped and formed by a non-magnetic metal material and then installed on the drum 1. The right side of the drum retaining ring 2 is connected to the clutch rotor 7, and the left end of the drum gland 8 has a drum gland retaining ring 22, and the drum gland retaining ring 22 is connected to the right end of the clutch rotor 7, and the clutch rotor 7 There are rotor retaining rings 21 on both end faces. The drum retaining ring, the rotor retaining rings at both ends, and the drum gland retaining ring are stamped and added by non-magnetic metal materials or processed integrally. The clutch rotor 7 There are circumferential grooves on the circumferential surface, and the magnetic gap space formed by the rotor retaining ring 2 , the rotor gland retaining ring 22 , the rotor retaining ring 21 and the circumferential grooves of the rotor has magnetic powder inside the magnetic gap space. The magnetic powder in this magnetic gap space is blocked by the mutual cooperation of the drum retaining ring 2, the drum gland retaining ring 22, and the rotor retaining ring 21, so that the magnetic powder is not easy to leak to the oil seal, which can effectively reduce the product’s running time. The failure rate in the middle increases the service life of the product.

The outer side of the left end of the drum 1 is connected to the inner side of the left coil seat 13 through the left outer bearing 12, the outer side of the drum gland 8 is connected to the inner side of the right end of the right coil seat 16 through the right outer bearing 17, and the upper part of the drum gland 8 has an upper right Outer circlip 18, the upper right outer circlip 18 is connected to the side wall of the right outer bearing 17, and the right coil seat 16 is connected to the left coil seat 13, and the right coil seat 16 and the left coil seat 13 have notch positions, and the A tension groove 23 is provided on the circumferential surface of the drum 1, the bottom of the left coil seat 13 has a glue thread head 14, the inside of the left coil seat 13 and the outside of the right coil seat 16 form an annular groove, and the inside of the annular groove has a plastic The coil mold 15 has a copper coil 19 inside the plastic coil mold 15, and the copper coil adopts an enamelled copper wire to wrap circumferentially on the plastic coil mold, and the wire of the copper coil 19 passes through the glue wire head 14.

There is a left oil seal 4 on the left side of the drum 1, the left oil seal 4 is connected to the left inner bearing 5, the left inner bearing 5 is connected to the left outer circlip 6, and the right side of the drum gland 8 is provided with a right oil seal 9, The right oil seal 9 is connected to the right inner bearing 10, and the right inner bearing 10 is connected to the right outer circlip 11, and the clutch rotor shaft 3 passes through the left outer circlip 6, the left inner bearing 5, the left oil seal 4, and the drum in turn. 1. Clutch rotor 7, drum gland 8, right oil seal 9, right inner bearing 10, right outer circlip 11, the clutch rotor shaft 3 is made of 304 grade stainless steel, the front end of the clutch rotor shaft 3 With square 20 milling. The miniature magnetic powder clutch is not easy to leak powder, and its service life and stability are better than the existing technology, and the service life is 12 to 18 months longer than the current miniature magnetic powder clutch.

Claims (3)

1. a miniature magnetic powder cluth, is characterized in that: include rotating cylinder, rotating cylinder back-up ring, clutch armature spindle, clutch rotor, rotating cylinder Gland, left coil seat, tree lace head, plastic cement coil mould, right coil holder, copper coil, two ends of rotor back-up ring, rotating cylinder gland back-up ring, institute Stating rotating cylinder gland and connect rotating cylinder right-hand member, have clutch armature spindle inside described rotating cylinder, described rotating cylinder internal side wall connects rotating cylinder gear Circle, connects clutch rotor on the right side of described rotating cylinder back-up ring, described rotating cylinder gland left end has rotating cylinder gland back-up ring, described rotating cylinder gland Back-up ring connects clutch rotor right-hand member, and described clutch two ends of rotor end face has a rotor's check ring, and described rotating cylinder back-up ring, two ends of rotor are kept off Circle, rotating cylinder gland back-up ring are added by non-magnetic metal material punch forming and install or be integrally machined molding, and described clutch turns Having circumferential recess on sub-periphery, described rotating cylinder back-up ring, rotating cylinder gland back-up ring, a rotor's check ring, the circumferential recess of rotor are constituted Magnetic gap space, described magnetic gap interior volume has magnetic powder.

Miniature magnetic powder cluth the most according to claim 1, is characterized in that: by left outside bearing outside described rotating cylinder left end Connect inside left coil seat, connect inside right coil holder right-hand member by right outer bearing outside described rotating cylinder gland, described rotating cylinder pressure The portion of covering has the outer jump ring of upper right, and the outer jump ring of described upper right connects right outer bearing sidewall, and described right coil holder connects left coil seat, Described right coil holder, left coil seat have seam position, and described rotating cylinder periphery is provided with tension force groove, and described left coil seat bottom has Having tree lace head, described left coil seat is internal and right coil holder is outside forms annular groove, has plastic cement inside described annular groove Coil mould, has copper coil inside described plastic cement coil mould, and the wire of described copper coil passes tree lace head.

Miniature magnetic powder cluth the most according to claim 2, is characterized in that: have left oil sealing on the left of described rotating cylinder, described Left oil sealing connects left inside bearing, and described left inside bearing connects left outside jump ring, has right oil sealing, the described right side on the right side of described rotating cylinder gland Oil sealing connects right inner bearing, and described right inner bearing connects right outer jump ring, and described clutch armature spindle sequentially passes through left outside jump ring, left inside Bearing, left oil sealing, rotating cylinder, clutch rotor, rotating cylinder gland, right oil sealing, right inner bearing, right outer jump ring, described clutch armature spindle by Material is that rustless steel is made, and described clutch armature spindle front end has milling side.