CN102820717A

CN102820717A - Stick-shaped motor stator fixing structure with axial pretension force

Info

Publication number: CN102820717A
Application number: CN2011101557451A
Authority: CN
Inventors: 张维麟; 黄柏盛
Original assignee: Hiwin Mikrosystem Corp
Current assignee: Hiwin Mikrosystem Corp; Hiwin Technologies Corp
Priority date: 2011-06-10
Filing date: 2011-06-10
Publication date: 2012-12-12
Anticipated expiration: 2031-06-10
Also published as: CN102820717B

Abstract

The invention relates to a stick-shaped motor stator fixing structure with an axial pretension force. The structure comprises a base, two pier bases, a rod-shaped stator and a prestressing force group, the two pier bases are separated from each other, each pier base includes a base body and a fixing hole, the base body is arranged on the upper side base surface of the base, the fixing hole penetrates through the base body, two ends of a rod shaft respectively penetrate through one corresponding fixing hole, so that the stator is in a bridge connection between the pier bases, the prestressing force group includes two abutting surfaces, two pushing portions and two combining portions, the two abutting surfaces are located at two ends of the rod shaft of the stator respectively and correspond to each other oppositely, the two pushing portions are arranged on the stator in a sliding mode respectively and located between the stator and the hole walls of the fixing hole which the stator penetrates through, mutually reverse one ends of the two pushing portions are respectively abutted to corresponding abutting surfaces, the two combining portions are used for mutually combining each pushing portion with one corresponding base body, the pushing portions can be used to push and abut to the corresponding abutted abutting surfaces in mutually reverse directions, the axial pretension force can be exerted on the stator, a linear state of the stator can be guaranteed, and the exerted pretension force can be adjusted according to conditions of different stators and active cells.

Description

The bar-shaped motor stator fixture construction of the axial pretension of tool

Technical field

The present invention is relevant with bar-shaped motor, particularly the bar-shaped motor stator fixture construction of the axial pretension of a kind of tool.

Background technology

See also shown in Figure 1ly, the bar-shaped motor of knowing is the basis for being shaft-like stator 1 with one, and the bar direction of principal axis of mover along this stator 1 is provided; Under the effect in magnetic field, reciprocally carry out the slippage start, so that the utilization of power confession industry to be provided, and stator 1 is on being provided with; Then be that two holders 2 are divided on the metab 3 as bridge pier, again this stator Bridge 1 be located on this two holder 2, make this stator 1 be suspended on this base 3 tops according to this; But, thus, stator 1 inner ccontaining most magnet magnetic force of giving birth to will make stator 1 incline toward these base 3 directions; Add the effect of gravity, make the above-mentioned known techniques stator 1 that very is prone to derive on gravity direction, produce crookedly, cause the levelness unfavorable condition; When causing mover on stator 1, to move, interference situation is between the two aggravated, thereby has influenced the normal operation of bar-shaped motor.

And be the disappearance of improving above-mentioned conventional art; Satisfy just like as the technology that Fig. 2 disclosed; Further establish sheet metal 7 in

stator

5 and 6 folders of holder, seeing through provides the upwards curved moment of stator 5 on gravity direction, in the hope of payment gravity and magnet stator that suction causes 5 reclinate active forces; These technology contents no doubt can reach the effect of keeping stator 5 levelness; But change stator 5 contacts state with 6 of holders mode and inaccuracy because it sees through sheet metal 7, be difficult to guarantee whether the curved moment that is provided is enough, be prone to give birth to not enough or excessive situation; And the curved moment that it provided also is merely unidirectional, and can't further guarantee stator 5 straight-line extension state in the horizontal direction.

Summary of the invention

Therefore, main purpose of the present invention promptly is to provide the bar-shaped motor stator fixture construction of the axial pretension of a kind of tool, and it can make stator on level and gravity direction, guarantee its linear state.

In order to reach above-mentioned purpose, the present invention takes following technical scheme:

The bar-shaped motor stator fixture construction of the axial pretension of a kind of tool includes a base; The two separate pier bases that come have a body respectively, are located on the upside seat surface of said base, and a fixing hole provides on one's body the said seat; One shaft-like stator is arranged in respectively with bar axle two ends in the fixing hole of a correspondence, bridges at according to this between each said pier base; It is characterized in that also including a preparatory power group, have two and support face, lay respectively on the bar axle two ends of said stator; And corresponding toward each other, two pushed sections are slidedly arranged on respectively on the said stator; And between between a said stator and the fixing hole hole ancient piece of jade, round, flat and with a hole in its centre that worn; And be connected to corresponding supporting on the face separately with an opposing each other end, two joint portions make each said pushed section be bonded to each other with corresponding seat body; By this, can oppositely push against the face that supports of institute's butt each other by each said pushed section, and the pretension on applying axially to said stator.

Wherein, each said joint portion has an internal thread and an external screw thread that is spirally connected each other respectively, and makes said external screw thread be located on all sides of a corresponding pushed section, and said internal thread then is located on the hole wall of a corresponding fixing hole.

Wherein, said preparatory power group also includes the second ring end block, on the coaxial respectively bar axle two ends that are fixed in said stator, and each said face that supports is positioned on each said end block side ring surface toward each other.

Wherein, each said pushed section in a tubular form, the bar of internal diameter and said stator footpath is similar, external diameter is then similar with corresponding fixing hole aperture.

Wherein, said preparatory power group also can include two urgent portions; Each said urgent includes one first clearance groove respectively; Direction of principal axis extends and is through to the outside end face of respective seat body along the hole from a side opening ancient piece of jade, round, flat and with a hole in its centre of a corresponding fixing hole; At least one packing bolt, with the mode of stud shaft perpendicular to said fixing hole hole axle, spiral shell is located on one's body the said seat; And said first clearance groove that lies across, can be by the groove width that changes said first clearance groove that urges of said packing bolt.

Wherein, each said urgent also can include one second clearance groove respectively, with the said first clearance groove vertical connection be located on one's body the corresponding seat.

By the composition of above-mentioned member, can keep the pretension that stator is applied, thereby being had, stator is enough to the power of opposing level or vertical direction distortion; Guarantee the linear state of stator, interfere to avoid the action of mover produced, and; Because respectively this pushed section degree and suffered pretension of stator away from each other is proportional; Therefore can be in response to different stators and mover condition, the pretension that adjustment is applied makes bar-shaped motor more smooth and certain in the running that industry is utilized.

Description of drawings

Fig. 1 is a floor map of knowing technology.

Fig. 2 knows the floor map of technology for another.

Fig. 3 is the stereogram of the present invention's one preferred embodiment.

Fig. 4 is the cutaway view of the present invention's one preferred embodiment along 4-4 secant among Fig. 3.

Fig. 5 is the cutaway view of the present invention's one preferred embodiment along 5-5 secant among Fig. 3.

Embodiment

Below, promptly lift one preferred embodiment now, and conjunction with figs. is described further with the present invention.

See also Fig. 3 to shown in Figure 5, the bar-shaped motor stator fixture construction 10 of the axial pretension of tool that provides includes a base 20, two pier bases 30, a stator 40 and a preparatory power group 50 in the present invention's one preferred embodiment.

This base 20 is general rectangular tabular, in order to the basis as other constituent components.

Respectively on the apart major axis two ends of being located at this base upside seat surface respectively of this pier base 30 with coming; And be mutually symmetrical; And have a block body 31 respectively; Amplexiform with the bottom side end face and to be fixedly arranged on this base 20, a fixing hole 32 runs through this body 31, and makes the fixing hole 32 of this pier base 30 respectively corresponding coaxially to each other.

This stator 40 is shaft-like, and is identical with the technology contents of knowing stator, and makes that bar axle two ends are coaxial respectively to be extended through respectively in this fixing hole 32, so that this stator 40 bridges at respectively on this pier base 30.

This preparatory power group 50 is guaranteed the linear state of this stator 40 according to this in order to apply suitable pretension at this stator 40 on axially, avoids producing situation crooked so that interfere the mover start; Particularly, this preparatory power group 50 has the ring-shaped end piece 51 of two tool breach, coaxial respectively being fixed on these stator 40 bar axle two ends; And being arranged in respectively this fixing hole 32, second ring supports face 52, lays respectively on the annular end face that respectively this end block 51 is corresponding toward each other; Two pushed sections 53, in a tubular form and the bar of internal diameter and this stator 40 footpath similar, external diameter is then similar with corresponding fixing hole 32 apertures; And coaxial respectively wearing be slidedly arranged on this stator 40, and between 51 of this end blocks respectively, and be connected to respectively with its opposing each other tubular axis one end and respectively should support on the face 52; Two joint portions 54 lay respectively at respectively between this pushed section 53 and corresponding fixing hole 32 hole walls, and this pushed section 53 and this body 31 respectively are bonded to each other; Two urgent 55, with so that this body 31 and this end block 51 respectively close-fitting each other respectively.

Further, respectively this joint portion 54 have respectively one be located on corresponding fixing hole 32 inboard hole walls parts internal thread 541, and one be spirally connected with it and be located on the external screw thread 542 of 53 all side ring surfaces, corresponding pushed section.

Respectively these urgent 55 have one first clearance groove 551 respectively; Hole wall from corresponding fixing hole 32 1 sides extends through along the hole direction of principal axis to the outside end face of respective seat body 31; Most packing bolts 552 spiral shell respectively are located on the respective seat body 31, and this first clearance groove 551 that lies across, and make rotation by this packing bolt 552 respectively to change the groove width of this first clearance groove 551; One second clearance groove 553, with these first clearance groove, 551 vertical connections be located on the corresponding seat body 31.

By the composition of above-mentioned member, this stator 40 can be through rotating the respectively operation of this pushed section 53 be located at respectively on this body 31 by these end block 51 bridges respectively after; Make respectively this pushed section 53 away from each other, thereby applied a pretension on axially on this stator 40 via respectively supporting face 52, and after pretension provides; Make respectively this

end block

51 and 31 close-fittings of seat body by this clamping part 55 respectively again, keep the pretension that stator 40 is applied according to this, be enough to the power of opposing level or vertical direction distortion thereby stator 40 is had; Guarantee the linear state of stator 40; Interfere to avoid the action of mover produced, and, because respectively this pushed section 53 degree and stator 40 suffered pretensions away from each other are proportional; Therefore; Promptly be able in response to different stators and mover condition, the pretension that adjustment is applied makes bar-shaped motor more smooth and certain in the running that industry is utilized.

Claims

1. the bar-shaped motor stator fixture construction of the axial pretension of tool includes:

Base;

Two separate pier bases that come have a body respectively, are located on the upside seat surface of said base, and fixing hole, provide on one's body the said seat;

Shaft-like stator is arranged in respectively in the corresponding fixing hole with bar axle two ends, bridges at according to this between each said pier base;

It is characterized in that also including:

The power group has two and supports face in advance, lays respectively on the bar axle two ends of said stator; And corresponding toward each other, two pushed sections are slidedly arranged on respectively on the said stator; And between between a said stator and the fixing hole hole ancient piece of jade, round, flat and with a hole in its centre that worn; And be connected to corresponding supporting on the face separately with an opposing each other end, two joint portions make each said pushed section be bonded to each other with corresponding seat body;

Thereby oppositely push against the face that supports of institute's butt each other through each said pushed section, and the pretension on applying axially to said stator.

2. according to the bar-shaped motor stator fixture construction of the axial pretension of the described tool of claim 1; It is characterized in that: each said joint portion has internal thread and the external screw thread that is spirally connected each other respectively; And making said external screw thread be located on all sides of corresponding pushed section, said internal thread then is located on the hole wall of corresponding fixing hole.

3. according to the bar-shaped motor stator fixture construction of the axial pretension of the described tool of claim 1; It is characterized in that: said preparatory power group also includes two ring-shaped end pieces; On the coaxial respectively bar axle two ends that are fixed in said stator, and each said face that supports is positioned on each said end block side ring surface toward each other.

4. according to the bar-shaped motor stator fixture construction of the axial pretension of the described tool of claim 1, it is characterized in that: each said pushed section in a tubular form, the bar of internal diameter and said stator footpath is similar, external diameter is then similar with corresponding fixing hole aperture.

5. according to the bar-shaped motor stator fixture construction of the axial pretension of the described tool of claim 1, it is characterized in that: said preparatory power group also includes two urgent portions; Each said urgent includes first clearance groove respectively; Direction of principal axis extends and is through to the outside end face of respective seat body along the hole from a side opening ancient piece of jade, round, flat and with a hole in its centre of corresponding fixing hole; At least one packing bolt, with the mode of stud shaft perpendicular to said fixing hole hole axle, spiral shell is located on one's body the said seat; And said first clearance groove that lies across, can be by the groove width that changes said first clearance groove that urges of said packing bolt.

6. according to the bar-shaped motor stator fixture construction of the axial pretension of the described tool of claim 5, it is characterized in that: each said urgent also includes second clearance groove respectively, with the said first clearance groove vertical connection be located on one's body the corresponding seat.