CN108242881A

CN108242881A - Spiral linear motor

Info

Publication number: CN108242881A
Application number: CN201711302378.7A
Authority: CN
Inventors: 徐建宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-12-12
Filing date: 2017-12-10
Publication date: 2018-07-03

Abstract

The present invention a kind of spiral linear motor is disclosed, it be by stator core make single-turn or multi-turn, uniform pitch spiral iron core；And the movement screw pitch of mover then depends on the size of the spiral spacer of stator spiral iron core；Spiral iron core is divided into inner tank mouths and exterior notch two types；The notch of spiral iron core is embedded in three-phase windings；For exporting the mover of electromagnetic force as cylindrical metal electric conductor, mover and stator are set in together and can rotate and slide；When stator connects three-phase alternating current, the helical magnetic field consistent with the helical angle of spiral iron core is generated in spiral iron core, induct the consistent spiral vortex magnetic field of outgoing direction and helical magnetic field direction with the corresponding mover surface of this helical magnetic field, the spiral vortex magnetic field of mover and the helical magnetic field interaction of stator make mover to be less than the screw that the rotary speed of stator helical magnetic field does uniform pitch；As a kind of not only output torque but also the induction machine of axial force can be exported, it is applicable to the occasion of long range linear advancement.

Description

Spiral linear motor

Technical field

The present invention relates to a kind of spiral linear motors, and in particular to sensing linear motor field.

Background technology

The core length of conventional induction linear electric motor is shorter, although access is symmetrical three-phase alternating current, around Group current imbalance；Since there are side-termind effects, larger magnetizing current is needed；Therefore the electromagnetic push of linear motor generation, effect Rate, power factor etc. are lower than the electric rotating machine of same capacity.

Invention content

The present invention provides a kind of spiral linear motor, it is that stator core is made individual pen or multi-turn, the spiral shell of uniform pitch Iron core is revolved, and the movement screw pitch of mover depends on the size of the spiral spacer of stator spiral iron core；The spiral spacer of spiral iron core The point-to-point speed of the bigger mover of distance is faster, otherwise the point-to-point speed of mover is with regard to small；Spiral iron core is divided into inner tank mouths With exterior notch two types；It is distributed according to two poles or two extremely above number of magnetic pole pairs in the notch of spiral iron core and is embedded in three-phase Winding；For exporting the mover of electromagnetic force as cylindrical metal electric conductor, mover and stator be set in together and can rotate and It slides；When stator connects three-phase alternating current, the spiral magnetic consistent with the helical angle of spiral iron core is generated in spiral iron core , and the frequency of three-phase alternating current of the rotating speed of this helical magnetic field to accessing is directly proportional, is inversely proportional with the number of magnetic pole pairs of stator； Induct the consistent spiral vortex magnetic field of outgoing direction and helical magnetic field direction with the corresponding mover surface of this helical magnetic field, The spiral vortex magnetic field of mover and the helical magnetic field interaction of stator make mover to be less than the rotary speed of stator helical magnetic field Do the screw of uniform pitch；As a kind of not only output torque but also the induction machine of axial force can be exported, it is applicable to The occasion of long range linear advancement.The iron core of stator is made screw type makes the structure of linear motor compacter, can shorten The axial dimension of stator；Since mover is in helical magnetic field, myopia works in the rotating excitation field in closure；It is more general Induction linear electric motor can more efficiently overcome side-termind effect, can enhance electromagnetic push, the initial velocity for improving mover.

The present invention is realized by following technical solution：A kind of spiral linear motor, including：What stator and stator were set with Mover；For the stator by housing, the spiral iron core and spiral spacer being sleeved in housing are distributed in several notches of spiral iron core Interior winding, two end caps for being connected to housing both ends, the terminal box being connect with housing are formed；

It is characterized in that：The spiral iron core is that punching uniformly divides in inner circle or outer circle by several ring-shaped silicon steel sheets The notch of cloth, and break and open a gap in the same position of several ring-shaped silicon steel sheets；By several ring-shaped silicon steel sheets from indentation, there edge The helical form silicon steel sheet pulled axially away for forming uniform pitch, is folded in an axial direction after the coated insulating layer in two sides of several helical form silicon steel sheets Be fitted together, and make several helical form silicon steel sheets notch be aligned and notch axis it is vertical with the tangent to helix of spiral iron core Or the helical angle slightly larger than spiral iron core；If multi-turn number, uniform pitch, uniform thickness can be linked to be by carrying out grafting in the indentation, there of disconnection The spiral iron core of degree,；Number of turns uniform pitch, the spiral spacer such as the spiral spacer and spiral iron core are connected to the spiral shell of spiral iron core Each circle spiral iron core is separated in rotation interval；The winding is the winding of three-phase symmetrical, and winding is according to two poles or two poles Above even-even magnetic pole distribution is embedded successively in the notch with insulating layer of spiral iron core, the connection mode of winding then root According to needing to connect into star or triangle；The spiral iron core that would be embedded with winding links together with spiral spacer and is sleeved in housing And it is fixedly connected with the casing.

The mover is the metallic conductor of cylindrical type, and aluminum, copper and steel material can be used in making dynamic Son；To enhance the electromagnetic performance of mover, one layer of aluminium set or copper sheathing can be wrapped up in the mover outer ring of steel；The diameter of mover by The endoporus size of spiral iron core determines, and keeps air gap with the endoporus of spiral iron core.

Described end cap one end is screw-casing, and the other end is as the axle sleeve for supporting mover, the screw-casing and spiral shell of end cap one end Iron core uniform pitch is revolved, the one end of two end caps with screw-casing, which is set with and fits together with spiral iron core with housing, is connected to shell The both ends of body, the axle sleeve and mover of two end caps be set with and support mover and spiral iron core keep air gap enable mover rotate and It slides.

The positive effect of the present invention

1. the composite force generated by spiral iron core realizes spiral linear motion, more general induction linear electric motor can be compared with

For efficiently against side-termind effect.

2. the commutation of spiral linear motor, speed governing are identical with commutation, the speed governing of conventional threephase asynchronous.

3. stator core is done into the helically shaped initial velocity that can enhance electromagnetic push, improve mover linear advancement.

4. worm drive precision is high in the case of non-overloaded, promoted suitable for the high, medium and low speed of long range, energy

It is enough to play a role in the occasion for needing linear advancement.

It is 5. simple in structure, easy to manufacture.

Description of the drawings

The present invention is described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is the structural diagram of the present invention.

Fig. 2 is the left view of Fig. 1.

In figure：A, stator (shown in dotted line frame), B, mover.Stator A includes：1st, housing, 2, spiral iron core, 3, spiral every Set, 4, winding, 5, two end caps, 5-1, screw-casing, 5-2, axle sleeve, 6, terminal box.

Specific embodiment

As shown in Figure 1, 2：A kind of spiral linear motor, including：Stator A, the mover B with stator A suits；The stator A is by housing 1, the spiral iron core 2 and spiral spacer 3 being sleeved in housing 1, the winding being distributed in 2 several notches of spiral iron core 4th, two end caps 5 for being connected to 1 both ends of housing are formed；It is characterized in that：The spiral iron core 2 is by several ring-shaped silicon steel sheets Inner circle or outer circle on the equally distributed notch of punching, and break and open a gap in the same position of several ring-shaped silicon steel sheets； Several ring-shaped silicon steel sheets are pulled open to the helical form silicon steel sheet to form uniform pitch in an axial direction from indentation, there, several helical form silicon steel sheets It is stacked in an axial direction after the coated insulating layer in two sides, and makes notch alignment and the axis of notch of several helical form silicon steel sheets It will helical angle vertical with the tangent to helix of spiral iron core 2 or slightly larger than spiral iron core 2；If the indentation, there in disconnection is inserted Connect can be linked to be multi-turn number, uniform pitch, equal thickness spiral iron core 2；Number of turns such as the spiral spacer 3 and spiral iron core 2 etc. Screw pitch, spiral spacer 3 are connected in the spiral spacer of spiral iron core 2 and separate each circle of spiral iron core 2；The winding 4 For the winding of three-phase symmetrical, winding 4 is embedded successively according to the extremely above even-even magnetic pole distribution in two poles or two in spiral iron core 2 The notch 2-1 with insulating layer in, the connection mode of winding 4 then connects into star or triangle as needed；Would be embedded with around The spiral iron core 2 of group 4 links together with spiral spacer 3 to be sleeved in housing 1 and is fixedly connected with housing 1.

As shown in Figure 1, 2：Metallic conductors of the mover B for cylindrical type, aluminum, copper and steel the equal energy of material It is enough in and makes mover B；To enhance the electromagnetic performance of mover B, one layer of aluminium set or copper can be wrapped up in the mover outer ring of steel Set；The diameter of mover B is determined by the endoporus size of spiral iron core 2, and keeps air gap with the endoporus of spiral iron core 2.

As shown in Figure 1：One end of the end cap 5 be screw-casing 5-1, the other end as support mover B axle sleeve 5-2, The screw-casing 5-1 of end cap 5 and 2 uniform pitch of spiral iron core, the one end of two end caps 5 with screw-casing 5-1 be set with housing 1 and with Spiral iron core 2, which fits together, is connected to the both ends of housing 1, and the axle sleeve 5-2 and mover B of two end caps 5 are set with and support mover B Keep air gap that mover B is enable to rotate and slide with spiral iron core 2.

As shown in Figure 1：The iron core of stator A is made screw type can make the structure of linear motor compacter, can contract The axial dimension of short stator A；Since mover B is in helical magnetic field, myopia works in the rotating excitation field in closure；Compare one As induction linear electric motor can more efficiently overcome side-termind effect, electromagnetic push, the initial velocity for improving mover B can be enhanced Degree.

Claims

1. a kind of spiral linear motor, including：Stator (A), the mover (B) with stator A suits；The stator (A) is by housing (1), the spiral iron core (2) and spiral spacer (3) that are sleeved in housing (1), be distributed in spiral iron core (2) several notches around Group (4), two end caps (5) composition for being connected to housing (1) both ends；It is characterized in that：The spiral iron core (2) is will be several The equally distributed notch of punching in the inner circle or outer circle of ring-shaped silicon steel sheet, and disconnected in the same position of several ring-shaped silicon steel sheets One notch；Several ring-shaped silicon steel sheets are pulled open to the helical form silicon steel sheet to form uniform pitch, several spirals in an axial direction from indentation, there Be stacked in an axial direction after the coated insulating layer in two sides of shape silicon steel sheet, and make several helical form silicon steel sheets notch be aligned and The axis of notch will helical angle vertical with the tangent to helix of spiral iron core (2) or slightly larger than spiral iron core (2)；If disconnecting Indentation, there carry out grafting can connect into multi-turn number, uniform pitch, equal thickness spiral iron core (2)；The spiral spacer (3) It is connected to spiral iron core in the spiral spacer of spiral iron core (2) with number of turns uniform pitch, spiral spacers (3) such as spiral iron cores (2) (2) each circle separates；The winding (4) is the winding of three-phase symmetrical, and winding (4) is according to two poles or two extremely above magnetic Number of pole-pairs distribution is embedded successively in the notch (2-1) with insulating layer of spiral iron core (2), and the connection mode of winding (4) is then Connect into star or triangle as needed；The spiral iron core (2) that would be embedded with winding (4) links together with spiral spacer (3) It is sleeved in housing (1) and is fixedly connected with housing (1).

2. spiral linear motor according to claim 1, it is characterised in that：The mover (B) is the metal of cylindrical type Electric conductor, aluminum, copper and steel material can be used in making mover (B)；It, can for the electromagnetic performance of enhancing mover (B) To wrap up one layer of aluminium set or copper sheathing in the mover outer ring of steel；The diameter of mover (B) is determined by the endoporus size of spiral iron core (2) It is fixed, and keep air gap with the endoporus of spiral iron core (2).

3. spiral linear motor according to claim 1, it is characterised in that：One end of the end cap (5) is screw-casing The spiral shells such as (5-1), axle sleeve (5-2) of the other end as support mover (B), the screw-casing (5-1) and spiral iron core (2) of end cap (5) Away from two end caps (5), which have the same housing in one end (1) suit of screw-casing (5-1) and fit together with spiral iron core (2), to be connect At the both ends of housing (1), the axle sleeve (5-2) and mover (B) of two end caps (5) are set with and support mover (B) and spiral iron core (2) Air gap is kept to make mover (B) that can rotate and slide.