CN210898866U - Locking device for rotor round nut of permanent magnet motor - Google Patents

Abstract

The utility model provides a locking device of permanent magnet machine rotor round nut, its characterized in that is including supporting the base, the embedded block, the round nut sleeve, the side has the compressing tightly frock of operating window, embedded block bottom central authorities are provided with the blind hole that matches with rotor upper end pivot afterbody spindle nose, the embedded block is arranged in the round nut sleeve, the embedded block form matches with round nut sleeve hole cross sectional shape, round nut sleeve top is provided with the polygon that inserts the cylindricality form and correspond with torque spanner, it is provided with the hole that matches with rotor lower extreme pivot afterbody spindle nose to support the base, the peripheral recess that corresponds the round nut periphery in round nut sleeve bottom is provided with the mosaic block. Compared with the prior art, the utility model, have locking efficient, use manpower sparingly, advantage that the product uniformity is good.

Description

Locking device for rotor round nut of permanent magnet motor

Technical Field

This patent belongs to permanent-magnet machine assembly technique.

Background

The structure of the permanent magnet motor rotor mainly comprises: the rotor comprises a rotating shaft, a rotor core (an integral module formed by laminating punching sheets), magnetic steel, a rotor baffle, a stop gasket and a round nut. The last process of the assembly is to lock the round nut. The rotor is composed of several sections of iron cores, and can be conveniently inserted with magnetic steel, and can be flexibly and freely assembled into rotors with various lengths. Because the magnetic steel is embedded in the rotor iron cores, every two adjacent sections of the rotor iron cores can repel each other, and therefore the gaps generated by mutual repulsion of the rotor iron cores are eliminated by axially compressing the tool in a four-column hydraulic machine before the round nut is locked.

After the rotor is compacted, the traditional method for locking the round nut is as follows: due to the limitation of special environment of the compaction rotor, only a straight screwdriver can be used for radially and clockwise knocking and locking the round nut groove; the torque of the round nut cannot be detected with a torque wrench. The locking method has the disadvantages that the round nut cannot be locked quickly, repeated knocking is needed for multiple times to achieve locking, time is long, whether the locking effect is achieved or not is judged by experience, and the consistency of products is poor. When the screwdriver is knocked and locked, one hand is required to hold the screwdriver, and the other hand is used for knocking the screwdriver by an iron hammer, so that the operation is not beneficial to mass production.

Disclosure of Invention

The utility model aims at providing a locking device of permanent-magnet machine rotor round nut that locking efficiency is high, use manpower sparingly, the product uniformity is good.

The utility model discloses a realize like this, including supporting 3 torque wrench 4 of nested 2 round nut sockets in the base 1 and compressing tightly frock 5.

The device of the patent is realized as follows: the pressing tool comprises a supporting base, an embedded block, a round nut sleeve and a pressing tool with an operation window on the side face, wherein a blind hole matched with a spindle head at the tail part of a rotating shaft at the upper end of a rotor is formed in the center of the bottom of the embedded block, the embedded block is arranged in the round nut sleeve, the shape of the cross section of an inner hole of the round nut sleeve is matched with that of the embedded block, a polygonal embedded hole corresponding to a torque wrench inserting cylindrical shape is formed in the top of the round nut sleeve, an inner hole matched with the spindle head at the tail part of the rotating shaft at the lower end of the rotor is formed in the supporting base.

When the four-column hydraulic press works, the supporting base is placed on the bottom surface of the four-column hydraulic press, the shaft head at the tail part of the rotating shaft at the lower end of the rotor is inserted into the inner hole of the supporting base, the round nut is screwed on the fixing screw rod at the upper end of the rotor, the embedded block of the round nut sleeve is clamped on the peripheral groove of the round nut, the shaft head at the tail part of the rotating shaft at the upper end of the rotor is inserted into the blind hole of the inner embedded block matched with the shaft head, the pressing tool is arranged between the baffle plate on the upper surface of the rotor and the top surface of the four-column hydraulic press, the four-column hydraulic press is started to press the rotor core of the rotor through the pressing tool and the supporting base, then the torque wrench is stretched into the pressing tool from the operation window of the pressing tool, the inserting column of the torque wrench is inserted into the polygonal.

Has the advantages that:

1. this patent device can arrange torque wrench in pairs and use, and convenient quick lock circle nut increases efficiency.

2. The locking torque of the round nut can be set, and the product quality is improved.

3. The device has simple and reliable operation method and can be used for locking the permanent magnet rotor round nut in mass production.

Compared with the application technology, the utility model, owing to adopted the circle nut sleeve, consequently, just can use torque wrench to tighten the circle nut with controllable wrench force fast, consequently, have locking efficient, use manpower sparingly, advantage that the product uniformity is good.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an exploded view.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings and examples:

as shown in the drawing, the utility model discloses a realize like this, including setting up the support base 1 in four post hydraulic press a bottom, interior abaculus 2, circle nut sleeve 3, the side has the circular cover form of bottom pressure on baffle c and the lock washer d of operating window 4 and compresses tightly frock 5, 2 bottom central authorities of interior abaculus are provided with the blind hole 7 that matches with rotor b upper end pivot afterbody spindle nose 6, interior abaculus 2 is arranged in circle nut sleeve 3, 2 shapes of interior abaculus match with 3 hole cross sectional shapes of circle nut sleeve, 3 tops of circle nut sleeve are provided with and insert the polygon that the post 9 shapes correspond with torque wrench 8 and inlay hole 10, support base 1 and be provided with and match hole 12 with rotor b lower extreme pivot afterbody spindle nose 11, 3 bottom peripheries of circle nut sleeve correspond the peripheral recess 14 of circle nut 13 and are provided with mosaic block 15.

Claims (1)

1. The utility model provides a locking device of permanent magnet machine rotor round nut, its characterized in that is including supporting the base, the embedded block, the round nut sleeve, the side has the compressing tightly frock of operating window, embedded block bottom central authorities are provided with the blind hole that matches with rotor upper end pivot afterbody spindle nose, the embedded block is arranged in the round nut sleeve, the embedded block form matches with round nut sleeve hole cross sectional shape, round nut sleeve top is provided with the polygon that inserts the cylindricality form and correspond with torque spanner, it is provided with the hole that matches with rotor lower extreme pivot afterbody spindle nose to support the base, the peripheral recess that corresponds the round nut periphery in round nut sleeve bottom is provided with the mosaic block.

Images