CN2422722Y

CN2422722Y - Multi-magnetic roller strong magnetic field demagnetizer

Info

Publication number: CN2422722Y
Application number: CN 99213128
Authority: CN
Inventors: 张弓; 杨炳宏
Original assignee: MAGNETIC EQUIPMENT FACTORY ZHANGPU COUNTY FUJIAN PROV
Current assignee: MAGNETIC EQUIPMENT FACTORY ZHANGPU COUNTY FUJIAN PROV
Priority date: 1999-06-14
Filing date: 1999-06-14
Publication date: 2001-03-07
Anticipated expiration: 2009-06-14

Abstract

The utility model relates to a multi-magnetic roller strong magnetic field demagnetizer used in industry. The structure of the multi-magnetic roller strong magnetic field demagnetizer is that a plurality of permanent magnetic bodies are used for producing a single magnetic roller, and a plurality of magnetic rollers are lined in parallel to form a magnetic roller assembly, wherein, a first magnetic roller is used as an active magnetic roller. When active magnetic roller is driven to rotate, with the principle of magnetic coupling, all the magnetic rollers of the assembly rotate synchronously to form a strong alternating magnetic field in the space, and a demagnetizing workpiece passes through the space to be demagnetized. The multi-magnetic roller strong magnetic field demagnetizer has the advantages of high energy saving property, favorable demagnetizing effect, long service life, etc. The magnetic roller assembly can be formed by various kinds to form a serial demagnetizer according to the shapes, sizes and demagnetizing requirements of demagnetizing workpieces.

Description

Multi-magnetic roller high-intensity magnetic field demagnetizer

The utility model relates to a kind of multi-magnetic roller high-intensity magnetic field demagnetizer of the workpiece demagnetization technology of industrial usefulness, and it belongs to the equipment of regulating quantity of magnetism system.

Existing demagnetizing apparatus has dual mode: a kind of principle of utilizing hot-wire coil to produce alternating magnetic field is made, but have that power consumption is big, volume is big, easy shortcomings such as puncture; Another kind utilizes permanent magnet to form the rotation of single magnetic roller, produces that alternating magnetic field makes, and has little power consumption, advantage such as cheap.The demagnetization effectiveness great majority do not reach state specified standards, not can manufacture but in actual applications.

The utility model is through experiment repeatedly for many years, and use on the spot to producer, through repeatedly improving, adopt multi-magnetic roller, high-intensity magnetic field, three characteristics of magnetic coupling to make demagnetizer, not only have advantages such as little power consumption, cost are low, and demagnetization effectiveness is good, reliable in quality is stable, it is big to be suitable for the workpiece scope of being demagnetized, and the remanent magnetism index all can meet or exceed state specified standards.

The utility model is achieved in that being made by a plurality of permanent magnets to have N, under the situation of the single magnetic roller at S the two poles of the earth, many magnetic rollers are arranged in parallel form the magnetic roll assembly, thereby form than the stronger magnetic field of single magnetic roller in the spatial dimension around this assembly.Wherein first magnetic roller is the active magnetic roller, when the active magnetic roller rotates in driving assembly, because homopolar-repulsion, heteropole is inhaled mutually magnetic-coupled principle is taken place, whole magnetic rollers of this assembly rotate synchronously, thereby form powerful alternating magnetic field in this space, when the workpiece that demagnetized passes through from this space, can reach the purpose of demagnetization.

Owing to adopt many magnetic rollers to utilize magnetic coupling principle to rotate synchronously, demagnetize thereby produce powerful alternating magnetic field in this space, not only keep single magnetic roller energy-saving advantages, but also guarantee the effect of demagnetization, have practice and be worth.

The utility model, changes in the arrangement of left magnetic roller and magnetic roll assembly according to by the shape of demagnetization workpiece, size and demagnetization requirement to some extent through repeatedly testing repeatedly, forms three kinds of embodiment, now is described further in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a magnetic roll structure schematic diagram

Fig. 2 is a magnetic roll assembly structural representation

Fig. 3 is first embodiment schematic diagram of the utility model

Fig. 4 is second embodiment schematic diagram of the utility model

Fig. 5 is the 3rd embodiment schematic diagram of the utility model

Among the figure, 1. permanent magnet; 2. iron axle; 3. belt pulley; 4. active magnetic roller; 5. descend the magnetic roll assembly; 6. prime mover; 7. underdrive band; 8. translational worktable; 9. by the demagnetization workpiece; 10. go up driving-belt; 11. last magnetic roller; 12. last magnetic roll assembly; 13. active magnetic roller

Among Fig. 1, many permanent magnet (1) is embedded on the groove of iron axle (2) symmetrically, and adds adhesive, guarantee firmly, make have N, the magnetic roller at S the two poles of the earth;

Among Fig. 2, many magnetic rollers are arranged in parallel form the magnetic roll assembly, leave appropriate gap between the magnetic roller, be installed in jointly in the sheath that non-conductive material makes, wherein first is active magnetic roller (4), same shaft pulley (3) is arranged on the active magnetic roller, when driving active magnetic roller (4) rotation by belt pulley (3), because homopolar-repulsion, heteropole is inhaled mutually magnetic-coupled principle is taken place, and the whole magnetic rollers in the assembly are rotation synchronously all, thereby produces powerful alternating magnetic field in its space, quilt demagnetization workpiece through out-of-date, can reach the purpose of demagnetization from its space.

In first embodiment shown in Figure 3, active magnetic roller (4) rotation under prime mover (6) drives by underdrive band (7) in the magnetic roll assembly (5), whole magnetic rollers in this assembly are rotation synchronously also, side space can reach the purpose of demagnetization through out-of-date when being driven from it by demagnetization workpiece (9) by translational worktable (8).This embodiment is applicable to the situation of demagnetization workpiece height not high relatively (as bearing).

In second embodiment shown in Figure 4, the height higher relatively (as oil pump nozzle) of demagnetization workpiece (9), then should be on the basis of first embodiment, above following magnetic roll assembly, add magnetic roller (11) on, and by magnetic roller (11) rotation in last driving-belt (10) drive, thereby enlarge the spatial dimension of powerful alternating magnetic field, the workpiece (9) that demagnetized is driven from its middle space by translational worktable (8) and passes through, and makes the workpiece that demagnetized that highly changes high still can reach the demagnetization purpose.

In the 3rd embodiment shown in Figure 5, demagnetization standard-required by the demagnetization workpiece is very strict, then should be on the basis of first embodiment, magnetic roll assembly (12) is added in top at following magnetic roll assembly (5), and drive active magnetic roller (13) rotation by last driving-belt (10), because magnetic coupling principle, on, all magnetic rollers in the following magnetic roll assembly are rotation synchronously all, thereby it is bigger to produce spatial dimension than previous embodiment, the powerful alternating magnetic field that intensity is stronger, passed through from its middle space by translational worktable (8) drive by demagnetization workpiece (9), satisfied the strict more requirement of demagnetization standard.

The utility model is through using widely for many years and checking, and its remanent magnetism index all reaches and surpasses national Specified standard, it has, and obvious energy conservation, demagnetization effectiveness are good, easy to operate, high efficiency, event The advantage such as the barrier rate is low, long service life, the scope of application are extensive. It bearing, oil pump nozzle, gear, The industries such as Hydraulic Elements, internal combustion engine part, measuring tool, instrument and meter are used widely, and deeply benefit from Welcome at the family.

Claims

1. multi-magnetic roller high-intensity magnetic field demagnetizer, by many permanent magnet is made have N, the magnetic roller at S the two poles of the earth, it is characterized in that: many magnetic rollers are arranged in parallel form the magnetic roll assembly, leave appropriate gap between the magnetic roller, be installed in jointly in the sheath that non-conductive material makes, wherein first is the active magnetic roller, when driving the rotation of active magnetic roller, because homopolar-repulsion, heteropole is inhaled mutually magnetic-coupled principle is taken place, its residual magnetism roller is rotation synchronously also, thereby forms powerful alternating magnetic field.

2. multi-magnetic roller high-intensity magnetic field demagnetizer according to claim 1 is characterized in that: its magnetic roll assembly only is made up of magnetic roll assembly under a group, demagnetized workpiece from it side space pass through.

3. multi-magnetic roller high-intensity magnetic field demagnetizer according to claim 1 is characterized in that: add magnetic roller on above following magnetic roll assembly, the workpiece that demagnetized passes through from its middle space.

4. multi-magnetic roller high-intensity magnetic field demagnetizer according to claim 1 is characterized in that: add magnetic roll assembly on a group above following magnetic roll assembly, the workpiece that demagnetized passes through from its middle space.