CN100417585C

CN100417585C - Rotary type permanent magnet lifting jack

Info

Publication number: CN100417585C
Application number: CNB031475841A
Authority: CN
Inventors: 杜庆榕
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-17
Filing date: 2003-09-17
Publication date: 2008-09-10
Anticipated expiration: 2023-09-17
Also published as: CN1597492A

Abstract

The present invention relates to a rotary permanent magnetic crane which comprises a circular disc made of composite materials, wherein a bearing, a step axle, a gap adjusting pad, a fastening nut and a rare earth permanent magnet are integrally processed and arranged on the circular disc, and are sealed in a cylindrical outer shell by an upper sealed cap and a lower sealed cap. A rotary handle on the step axle is pushed by a movable cylinder body, and the rotational angle of the circular disc made of composite materials fixed on an axle is changed to change a magnetic circuit, so that a short magnetic circuit can be obtained. The rotary permanent magnetic crane has the advantages of little magnetic loss, large heavy suction force, and convenient, flexible and reliable suction and discharge of heavies.

Description

The rotary type permanent magnetic lifter

Described field

The present invention relates to a kind of permanent magnetic lifter, particularly can change magnetic circuit and inhale the device that unloads weight.

Background technology

Present known magnetic Jack has two kinds in electromagnetism and permanent magnetism, the electromagnet structure complexity, and the manufacturing cost height, consumption of current is big.Permanent magnetism divides mobile change magnetic circuit again and rotates the suction of change magnetic circuit and unload two kinds on weight.Move and change magnetic circuit such as patent 89209146.0,91209735.3,92217270.6 etc.Rotate and change magnetic circuit such as patent 89218253.9,94104385.1,99233269.9 etc.But move to change magnetic circuit inhale move when heavy magnetic system and fixedly magnetic be that permanent magnet unit body magnetic field, two ends can not superpose, cause the waste of various materials.The existing several patents of change magnetic circuit of rotating is as 99233269.1.Permanent magnet the two poles of the earth are connected across on the magnetizer on NULL both sides, permanent magnet dipolar magnetic field path is not too reasonable, and inhaling when heavy square fixedly has distance between concentrating flux plate and weight, can not give full play to suction, and device is complicated, and discharging is inconvenience also.89218253.9 patent has rationally been used the magnetic field superposition principle, installs rationally between permanent magnet and the magnetic vibrating feeder yoke, does not cut off magnetic circuit but disc centre is magnetizer and each unit yoke body, and does not design actual device.94104385.1 used the magnetic field superposition principle equally, and change to some extent than 89218253.9 patents, but be that disc centre is that magnetizer and each unit magnetic vibrating feeder yoke do not cut off magnetic circuit equally, and pyramid type roller and center shaft, chain and gear and the design of fan type tooth plate all can be fast and controlled poor because of motor speed.

Summary of the invention

The purpose of this invention is to provide a kind of stock utilization height, Distribution of Magnetic Field rationally, inhale and unload convenient, the rotary type permanent magnetic lifter flexibly of weight.

The objective of the invention is to realize: a kind of rotary type permanent magnetic lifter by following scheme, by housing, slewing arrangement and rotatable magnetic pole are formed, it is characterized in that, the fan-shaped magnetic vibrating feeder yoke 21 that has welded three pairs of permeability magnetic materials every magnetic core dish 20 outer rings places of non-magnet material becomes the whole disk of composite material that symmetry has groove, the rare earth permanent magnet utmost point 11 of same polarity is placed in processing back, magnetic vibrating feeder yoke both sides, the single direction thrust ball bearing 14 of non-magnetic conductive material is installed in the hole of magnetic core dish 20, stepped shaft 15, adjust the clearance pad 16, clamp nut 9, on the composite material, lower disc is installed in the barrel shrond body 19, by the sealing of upper-lower seal lid, stepped shaft 15 end captive joint rotation handles 1, handle 1 two ends flexibly connect two cylinders of magnetic tape trailer portion pivot pin, and cylinder 4 afterbody pivot pins flexibly connect the fixedly pivot pin 6 that is fixed on the top cover labyrinth 5.

Because the employing such scheme, various materials have obtained reasonable utilization, and magnetic circuit is short, magnetic loss is few, the rotating mechanism controlling magnetic field changes, and inhale and unload weight conveniently, flexibly, reliably.

Description of drawings

Accompanying drawing 1, accompanying drawing 2 are respectively that the master of general assembly of the present invention looks, plan view.

Accompanying drawing 3, accompanying drawing 4 are respectively that the master of disk on the composite material of the present invention looks, plan view.

Accompanying drawing 5, accompanying drawing 6 are respectively that the master of the assembly drowing of composite material lower disc of the present invention and rare-earth permanent magnet looks, plan view.

Among the figure: 1, rotation handle 2, connect pin 3, cylinder block 4, cylinder 5, top cover labyrinth 6, fixedly disk 11 on pivot pin 7, ball bearing of main shaft 8, O RunddichtringO 9, clamp nut 10, the composite material, rare-earth permanent magnet 12, hanger 13, composite material lower disc 14, single direction thrust ball bearing 15, stepped shaft 16, adjust the clearance pad 17, lower sealing cover 18, set pin 19, barrel shrond body 20, every magnetic core dish 21, fan-shaped magnetic vibrating feeder yoke.

Specific implementation method

Lower disc 10,13 all is integrally welded by the fan-shaped magnetic vibrating feeder yoke 21 every magnetic core dish 20 and permeability magnetic material of non-magnet material in Fig. 3,4,5,6, the rare earth permanent magnet utmost point 11 of same polarity is placed at each piece fan type magnetic vibrating feeder yoke 21 two ends of processing grooving, and stepped hole installation single direction thrust ball bearing 14, stepped shaft 15, adjust the clearance pad 16, clamp nut 9 every 20 processing of magnetic core dish among Fig. 1 tighten together every the magnetic core dish two.Composite material lower disc 13 is fixed on barrel shrond body 19 bottoms of non-magnet material, by the lower sealing cover 17 of non-magnet material lower disc rare-earth permanent magnet 11, stepped shaft 15, single direction thrust ball bearing 14 is sealed.How many steps that adjust the clearance pad 16 is regulated on the stepped shaft 15 exposes, and disk 10 and composite material lower disc 13 counterrotating gaps are suitable on the assurance composite material.The upper end of stepped shaft 15 is installed on the ball bearing of main shaft 7 of top cover labyrinth, and O RunddichtringO 8 plays the leak free effect.The end captive joint rotation handle 1 of stepped shaft 15, handle 1 two ends are with connecting the end that pin 2 flexibly connects cylinder 4, the bottom of cylinder 4 is movably connected on the fixedly pivot pin 6 of top cover labyrinth 5 with afterbody pivot pin form, two cylinders promote rotation handles 1 and drive the stepped shaft 15 between ball bearing of main shafts 7 and the single direction thrust ball bearing 14 and be fastened on that disk 10 rotate the angle of fixing on the composite material on the axle in barrel shrond body 19, last disk aligns with lower disc fan type magnetic vibrating feeder yoke, two magnetic vibrating feeder yokes are during with polar form, the magnetic line of force stack of lower disc bottom surface, magnetic line of force will constitute closed magnetic circuit by the magnet conductivity of weight and adjacent fan type magnetic vibrating feeder yoke and rare-earth permanent magnet, externally show ferromagnetism, draw weight, during two magnetic vibrating feeder yokes difference polar form, magnetic line of force constitutes closed magnetic circuit at two permanent magnets 11 and two 21 of fan type magnetic vibrating feeder yokes, externally do not show magnetic, shed weight.

Claims

1. rotary type permanent magnetic lifter, by housing, slewing arrangement and rotatable magnetic pole are formed, it is characterized in that, the fan-shaped magnetic vibrating feeder yoke (21) that has welded three pairs of permeability magnetic materials every magnetic core dish (20) outer ring place of non-magnet material becomes the whole disk of composite material that symmetry has groove, the rare earth permanent magnet utmost point (11) of same polarity is placed in processing back, magnetic vibrating feeder yoke both sides, the single direction thrust ball bearing (14) of non-magnetic conductive material is installed in the hole of magnetic core dish (20), stepped shaft (15), adjust the clearance pad (16), clamp nut (9), on the composite material, lower disc is installed in the barrel shrond body (19), by the sealing of upper-lower seal lid, stepped shaft (15) end captive joint rotation handle (1), handle (1) two ends flexibly connect two cylinders of magnetic tape trailer portion pivot pin, and cylinder (4) afterbody pivot pin flexibly connects the fixedly pivot pin (6) that is fixed on the top cover labyrinth (5).