JP2001329434A - Single-driving spindle apparatus of spinning frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a single-driving spindle apparatus effective for preventing the direct transmission of the vibration of a bolster to a motor housing and enabling easy integration of a cushioning member. SOLUTION: The single-driving spindle apparatus 1 is provided with a rotor 6 fixed to a spindle 4 rotatably supported on a bolster 2 in a manner integrally rotatable with the spindle and a stator 9 fixed in the motor housing 8 supported on a spindle rail 7. A cushioning member 10 having a damper action is placed between the housing 2a of the bolster 2 and the motor housing 8 in a state fixed to the attaching part 13 for the motor housing and the attaching part 14 for the bolster exclusively at the face extending in lateral direction. The cushioning member 10 is fixed to both attaching parts 13, 14 by thermal welding. The cushioning member 10 has a ring form and is placed in a state sandwiched between both attaching parts 13, 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single-spindle drive spindle device of a spinning machine used for a spinning machine such as a ring spinning machine or a ring twisting machine which independently drives a spindle of each spindle.

[0002]

2. Description of the Related Art In recent years, in order to increase the number of spindles in a spinning frame or to increase the rotation speed of a spindle, instead of driving all spindles of the spinning frame with a single motor, a spindle is provided for each spindle. A device provided with a driving motor has been proposed.
As shown in FIG. 4, a single spindle driving motor includes a spindle 32 rotatably supported by a bolster 30 via a bearing 31.
A rotor 33 is fixed to an intermediate portion of the motor housing 34 so as to be integrally rotatable, and the rotor 33 is disposed at a position corresponding to a stator 35 fixed inside the motor housing 34. The motor housing 34 is fixed to the upper outer peripheral surface of the housing 30a of the bolster 30. The bolster 30 is attached to the spindle rail 36 by mounting a support cylinder 38 fixed to the bottom of the motor housing 34 via a rubber damper 37.
It is inserted into the mounting hole 36a of the spindle rail 36 and tightened with a nut (not shown). Further, without providing the rubber damper 37, the housing 30
In some cases, a flange is formed on the upper part of a, and the housing 30a is inserted into the mounting hole 36a and fastened and fixed with a flange and a nut.

[0003] Also, Japanese Patent Application Laid-Open No. 3-59120 discloses that
It discloses that a rubber metal element is fitted between an outer ring of a bearing of a spindle to which a rotor is fixed and an inner surface of a spindle housing. The motor housing is fixed to the spindle housing.

[0004]

As shown in FIG. 4, a housing 30a of a bolster 30 and a motor housing 34 are provided.
Is not separated from the motor housing 34
The vibration of the spindle 32 is transmitted to the motor housing 34 through the bolster 30 even if the rubber damper 37 is provided between the motor housing 34 and the spindle rail 36. as a result,
This leads to fatigue breakdown of the solder parts and the like of the electric components provided in the motor housing 34, and the durability of the single spindle driving motor is reduced. The motor housing 34 and the bolster 30
Since the housing 30a vibrates integrally, the runout increases and the load on the bearing 31 also increases.

On the other hand, in the configuration disclosed in Japanese Unexamined Patent Publication No. 3-59120, a rubber metal element (buffer member) is provided between the spindle and the spindle housing, so that vibration of the spindle is attenuated. It is transmitted to the motor housing. However, it is difficult to mount a cushioning member made of an elastic member such as rubber between two cylindrical members while firmly fixed to both members.

This is because, when the cushioning member is to be firmly fixed by using an adhesive, when the rubber is fitted into the gap with the adhesive applied to the opposing surfaces of the two annular members, The adhesive is scraped off by the rubber, and the required adhesive strength cannot be obtained. To get the required adhesive strength,
With the adhesive applied to the surfaces of the two members, it is necessary to pour and vulcanize the rubber in a heated and molten state. However, in this case, the rubber in the molten state contracts when it cools, so that a state where a large residual stress is present, and desired damping characteristics cannot be obtained. Further, since the rubber is provided between the two members in a state where tension is applied, if the rubber is damaged, the damage is increased. To solve this inconvenience, the rubber is poured in a heated and molten state between the two members in a state where the diameter of the outer member of the two members is large, and after the vulcanization, the diameter of the outer member is reduced. Eliminate the residual stress of the rubber by removing the residual stress of the rubber, or providing the rubber between the two members in the same way with the inner member formed with a small diameter, and then increasing the diameter of the inner member to remove the residual stress of the rubber There is a way to do that. However, the manufacturing method becomes complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to prevent the bolster vibration from directly transmitting to the motor housing, and to easily incorporate a buffer member. An object of the present invention is to provide a single spindle drive spindle device of a spinning machine.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, a spindle rotatably supported by a bolster is fixed to a rotor integrally rotatably fixed to the spindle. A single-spindle drive spindle device for a spinning machine driven by a motor having a stator fixed in a motor housing supported by a spindle rail, having a damper function between the bolster housing and the motor housing. The shock-absorbing member was provided in such a state that the shock-absorbing member was fixed to the two housings or the mounting portion thereof only on the surface extending in the lateral direction.

In the present invention, since the buffer member having a damper function exists between the housing of the bolster and the motor housing, the vibration of the spindle is not directly transmitted to the motor housing but is transmitted in an attenuated state. . Therefore, fatigue destruction of the solder portion and the like of the electric component provided in the motor housing is suppressed, and the durability of the single spindle driving motor is improved. Further, since the cushioning member is fixed to the two housings or the mounting portion thereof only on the surface extending in the lateral direction, when only the adhesive is used, the adhesive is not scraped off, so that the necessary adhesive strength is required. Is secured. Also, when vulcanization is performed by flowing a rubber in a heated and molten state between both housings or their mounting portions arranged in a mold at the time of manufacturing, the occurrence of residual stress which adversely affects after cooling is prevented. Is obtained.

According to a second aspect of the present invention, in the first aspect of the present invention, the cushioning member is fixed to the two housings or a mounting portion thereof by heat fusion. Therefore, in the present invention, the adhesive strength is increased as compared with the case where the cushioning member is fixed to both housings or the mounting portions thereof with only the adhesive.

In the present invention, the term "thermal fusion" refers to bonding a material such as rubber serving as a cushioning member in a heat-fused state once. In addition to vulcanization bonding, only the bonding surface of the vulcanized rubber is used. And post-bonding for heating and melt bonding.

According to a third aspect of the present invention, in the first or second aspect of the invention, a separating buffer member for separating the spindle rail from the motor housing is provided. Therefore, according to the present invention, in addition to the fact that the vibration of the spindle is propagated to the motor housing in an attenuated state, the vibration of the spindle rail is also reduced due to the presence of the separating buffer member for separating the spindle rail and the motor housing. Propagation to the motor housing is prevented.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the cushioning member is formed in an annular shape, and is provided with a mounting portion on the housing side of the bolster. , And the motor housing side. Therefore, in the present invention, the mounting structure between the cushioning member and both housings is simplified.

According to a fifth aspect of the present invention, in the fourth aspect of the invention, the two housings are configured to be attachable to a spindle rail via a ring-shaped support having the cushioning member. Comprises a mounting portion for the spindle rail, and a motor housing mounting portion integrally formed on the mounting portion, wherein the buffer member is fixed on the motor housing mounting portion, and an annular member is provided on the buffer member. Bolster mounting part is fixed.

Therefore, in the present invention, the structure of the support for attaching both housings to the spindle rail is simplified. In the invention described in claim 6, in the invention described in claim 4, the both housings are configured to be attachable to a spindle rail via a support having an annular cushioning member, and the support is a spindle rail. A mounting portion for the motor housing, an upper portion of the mounting portion, an annular motor housing mounting portion disposed outside with the buffer member interposed therebetween, and an annular bolster mounting portion disposed inside, the buffer member Also serves as the separating buffer member.
Therefore, in the present invention, the number of constituent parts is reduced as compared with a configuration in which the buffer member and the separation buffer member are separate parts, and the manufacturing is simplified.

[0016]

(First Embodiment) A first embodiment of the present invention will be described below with reference to FIG. The single spindle drive spindle device 1 includes a motor 5 for driving a spindle 4 rotatably supported by a bolster 2 via a radial bearing 3. The motor 5 includes a rotor 6 fixed to the spindle 4 so as to be integrally rotatable, and a stator 9 fixed in a motor housing 8 supported by a spindle rail 7.

The motor housing 8 is configured to be attachable to the spindle rail 7 via a support 11 having a buffer member 10 having a damper function. Cushioning member 10
Is annularly formed of vulcanized rubber. The support 11 includes a mounting portion 12 for the spindle rail 7, a motor housing mounting portion 13 integrally formed on the mounting portion 12, a buffer member 10, and an annular bolster mounting portion 14. Mounting part 13 for motor housing
Is formed in a cylindrical shape having a flange 13 a at a lower portion, and the inner diameter of the cylindrical portion is formed larger than the outer diameter of the cushioning member 10. The buffer member 10 is formed to have the same inner diameter as the inner diameter of the mounting portion 12, and is fixed on the flange 13 a so as to be coaxial with the mounting portion 12 inside the motor housing mounting portion 13. The bolster mounting portion 14 is fixed on the cushioning member 10. That is, the cushioning member 10 is sandwiched between the motor housing attachment portion 13 and the bolster attachment portion 14, and
Are fixed to the mounting portions 13 and 14 only on the surface extending in the lateral direction. The bolster mounting portion 14 has the same outer diameter as the cushioning member 10 and the inner diameter
It is formed smaller than 0.

The motor housing 8 comprises a cylindrical main body 8a and a lid 8b for covering the upper opening. A step portion for positioning when the stator 9 is assembled is formed on the inner surface of the main body 8a. The stator 9 has a lower end engaged with the step portion and a motor whose upper end is engaged with the lower end of the lid 8b. Housing 8
It is assembled on the upper side.

The lower portion of the main body 8a is fitted and fixed to the outer peripheral surface of the motor housing mounting portion 13. Main body 8a
When the support 11 is attached to the spindle rail 7, the lower end of the motor housing mounting portion 13 is positioned above the lower end of the motor housing mounting portion 13 so that the support 11 does not contact the spindle rail 7. It is stuck to. The support 11 is attached to the spindle rail 7 by fitting the attachment portion 12 into an attachment hole 7 a formed in the spindle rail 7.

The housing 2a of the bolster 2 is formed in a cylindrical shape with a bottom, and the upper outer periphery thereof is fitted and fixed to a bolster mounting portion 14, and the support 1a does not come into contact with the mounting portion 12.
1 is attached to the support 11.
The bolster 2 is provided with radial bearings 3 at two upper and lower positions, and a thrust bearing 15 which is in contact with a lower end of the spindle 4 is provided at a lower portion.

When the support 11 is manufactured, a rubber is placed between the inner peripheral surface of each of the mounting portions 12, 13, 14 and the mounting portion 13 for the motor housing and the outer peripheral surface of the bolster mounting portion 14 at predetermined positions in the mold. A spacer is placed to prevent the intrusion. At this time, a rubber adhesive is applied to portions of the motor housing mounting portion 13 and the bolster mounting portion 14 to be fixed to the buffer member 10. In this state, the rubber mixed with sulfur or the like and the mold are pressurized and heated, the rubber in a heated and molten state is pressed into the mold and vulcanized, and then the support 11 is taken out from the mold after cooling. The molten rubber firmly adheres (adheres) only to the portion where the adhesive is applied. When the rubber shrinks during cooling, the mounting portion 13 for the motor housing and the bolster mounting portion 14 can move in the axial direction of the support 11, so that the residual stress is reduced.

When assembling the single spindle drive spindle device 1, the housing 2a of the bolster 2 is press-fitted and fixed to the bolster mounting portion 14 of the support 11 manufactured as described above, and the motor housing is mounted to the motor housing mounting portion 13. 8 is press-fitted and fixed.

Next, the operation of the single spindle driving spindle device 1 configured as described above will be described. When assembling the single spindle drive spindle device 1 to the spindle rail 7,
The mounting portion 12 of the support 11 is fitted and fixed in the mounting hole 7a of the spindle rail 7. In addition, a screw portion may be formed in the attachment portion 12 and may be fixed by tightening with a nut.

When the motor 5 is driven during the operation of the spinning machine, the spindle 4 is rotated, and the yarn is wound on a bobbin (not shown) mounted on the spindle 4. Vibration accompanying rotation of the spindle 4 is transmitted to the bolster 2 via the radial bearing 3, and the vibration is transmitted to the motor housing 8 via the support 11. The buffer member 10 is interposed between the motor housing mounting portion 13 and the bolster mounting portion 14 constituting the support body 11, and the vibration of the bolster 2 is greatly attenuated by the damper function of the buffer member 10 and propagated to the motor housing 8. You. Therefore, the vibration acting on the solder part and the like of the electric component provided in the motor housing 8 is extremely small. Also, large vibration of the motor housing 8 and the housing 2a of the bolster 2 is suppressed integrally, and the load on the radial bearing 3 is reduced.

This embodiment has the following effects. (1) Since the buffer member 10 having a damper function is provided between the housing 2a of the bolster 2 and the motor housing 8, the vibration of the spindle 4 is not directly transmitted from the bolster 2 to the motor housing 8, but is attenuated. Propagated by Therefore, the fatigue destruction of the solder portion of the electric component provided in the motor housing 8 is suppressed, and the durability of the motor 5 is improved.

(2) The buffer member 10 is fixed to the motor housing mounting portion 13 and the bolster mounting portion 14 only on the surface extending in the lateral direction. Therefore, even when rubber in a heated and molten state is press-fitted and vulcanized between the motor housing mounting portion 13 and the bolster mounting portion 14 arranged in the mold at the time of manufacture, residual stress that adversely affects after cooling is generated. Is prevented, so that the cushioning member 10 can obtain desired damping characteristics. Even when only the adhesive is used, the adhesive is not scraped off by rubber during the bonding operation, so that the adhesive strength is not impaired.

(3) Since the cushioning member 10 is fixed to the mounting portions 13 and 14 by heat fusion, compared with the case where the cushioning member 10 is fixed to the mounting portions 13 and 14 only by an adhesive. The adhesive strength is increased, and it becomes easy to secure the required adhesive strength.

(4) The cushioning member 10 is formed in an annular shape and is disposed so as to be sandwiched between the motor housing mounting portion 13 and the bolster mounting portion 14, so that the buffering member 10 and the two housings 8 are provided. , 2a.

(5) The housings 8 and 2a are configured to be attachable to the spindle rail 7 via a support 11 having an annular cushioning member 10. The support 11 is provided with an attachment portion 12 for the spindle rail 7, and Mounting portion 13 for motor housing integrally formed on top of mounting portion 12
And an annular bolster mounting portion 14 fixed on the mounting portion 13 via the buffer member 10. Accordingly, the structure of the support 11 for attaching the housings 8, 2a to the spindle rail 7 is simplified.

(6) The support 11 for attaching the two housings 8 and 2a to the spindle rail 7 is
After being manufactured separately from 2a, both housings 8, 2a are assembled to support 11. Therefore, as compared with the configuration in which the housings 8 and 2a are formed integrally with the mounting portions 13 and 14,
The size of the mold for fixing the buffer member 10 between the mounting portions 13 and 14 by heat fusion can be small, and the manufacturing cost can be reduced.

(Second Embodiment) Next, a second embodiment will be described with reference to FIG. In this embodiment, the single spindle drive spindle device 1 is largely different from the above embodiment in that the spindle rail 7 and the motor housing 8 are separated by a buffer member for separation. The same parts as those of the above-described embodiment are denoted by the same reference numerals, and the detailed description is omitted.

The support 11 has a mounting portion 22 for the spindle rail 7 and a mounting portion 23 for the motor housing formed separately, and the cushioning member 2 is provided between the mounting portions 22 and 23.
0 is provided. Mounting part 23 for motor housing
Is formed in an annular shape, and the bolster mounting portion 24 is formed in a cylindrical shape having a flange 24a at a lower portion. The mounting portion 23 for the motor housing includes the mounting portion 22.
The bolster mounting portion 24 is disposed on the outside, with the buffer member 20 fixed on the flange 22a of the first member 22 therebetween. The motor housing mounting portion 23 is fixed to the cushioning member 20 on the lower surface thereof, and the bolster mounting portion 2
4 is a cushioning member 2 on the upper and lower surfaces of the flange 24a.
0. That is, the cushioning member 20 includes a cushioning member that attenuates the propagation of vibration from the bolster mounting portion 24 to the motor housing mounting portion 23, and the spindle rail 7.
And a buffer member for separation for separating the motor housing 8 from the motor housing 8.

The motor housing 8 is attached to the support 11 with the lower portion of the main body 8a fitted and fixed to the outer peripheral surface of the motor housing attaching portion 23. When the support 11 is manufactured, each of the mounting portions 22 and 2 is placed at a predetermined position in the mold.
3 and 24 are arranged. At this time, a rubber adhesive is attached to a portion of the motor housing attachment portion 23 and the bolster attachment portion 24 to be fixed to the cushioning member 20, that is, to the inner bottom surface of the attachment portion 23 and the upper and lower surfaces of the flange 24 a of the bolster attachment portion 24. Apply the agent. In this state, the rubber mixed with sulfur or the like and the mold are pressurized and heated, the rubber in a heated and molten state is pressed into the mold and vulcanized, and then the support 11 is taken out from the mold after cooling. The molten rubber is firmly attached (adhered) only to the portion where the adhesive is applied, and rubber is not applied to the inner peripheral surface of the motor housing mounting portion 23, the outer peripheral surface of the cylindrical portion of the bolster mounting portion 24, and the outer peripheral surface of the flange 24a. Not fixed. Therefore, when the rubber shrinks during cooling, the mounting portions 23 and 24 do not restrict the shrinkage of the rubber in the axial direction of the support 11, and the residual stress of the cushioning member 20 is reduced as in the above-described embodiment.

Therefore, this embodiment has the following effects in addition to the effects (1) to (4) and (6) of the above embodiment. (7) Since the separation buffer member for separating the spindle rail 7 from the motor housing 8 is present, the vibration of the spindle rail 7 is prevented from being transmitted to the motor housing 8, and the vibration of the spinning machine stand is reduced. Through the motor housing 8.

(8) Since the cushioning member 20 also serves as a separating cushioning member, the cushioning member interposed between the bolster 2 and the motor housing 8 and the separating cushioning member are different from each other. In addition, the number of components is reduced, and manufacturing is simplified.

The embodiment is not limited to the above, and may be embodied as follows, for example. As shown in FIG. 3, the structure of the support 11 in the second embodiment is such that the motor housing mounting portion 23 is formed in a cylindrical shape having a flange 23a at a lower portion, and the bolster mounting portion 24 is formed in an annular shape. May be.

The buffer member interposed between the bolster 2 and the motor housing 8 and the separating buffer member may be separate components. For example, in the first embodiment, a separation buffer member is interposed between the flange 13a of the motor housing mounting portion 13 and the spindle rail 7,
The mounting portion 12 of the support 11 and the motor housing mounting portion 13 may be formed separately, and a separation buffer member may be interposed between the two.

The surfaces on which the cushioning members 10 and 20 are fixed to the housings 8 and 2a or their mounting portions 13, 23, 14 and 24 are not necessarily in a state perpendicular to the axial direction of the spindle 4, but obliquely intersect. It may be formed so as to extend in the direction in which it does. That is, the surface extending in the lateral direction includes not only a horizontal surface but also a slightly inclined surface.

The motor housing 8 and the mounting portions 13 and 23 for the motor housing may be formed integrally, or the housing 2a of the bolster 2 and the bolster mounting portions 14 and 24 may be formed integrally. That is, the motor housing mounting portions 13 and 23 and the bolster mounting portions 14 and 2 are substantially used.
4, the cushioning members 10 and 20 are provided in a state of being fixed between the housing 2a of the bolster 2 and the motor housing 8. In this case, when the cushioning members 10 and 20 are provided between the housings 2a and 8 by heat fusion, the size of the mold used for manufacturing becomes large, but the labor for assembling the single-spindle drive spindle device 1 is reduced.

The housing 2a of the bolster 2 and the bolster mounting portions 14, 24 are integrally formed, and the motor housing 8 and the motor housing mounting portions 13, 23 are formed separately. In this case, the labor for assembling the single-spindle drive spindle device 1 is simplified, and the motor 5 can be removed while the bolster 2 is fixed to the spindle rail 7, thereby facilitating maintenance.

The buffer member 10 is not limited to an annular shape, and a plurality of buffer members may be provided so as to be substantially annular. ○ Both housings 8, 2a or both mounting portions 13, 14,
The fixing of the members 23 and 24 to the cushioning members 10 and 20 may be performed by using only an adhesive instead of heat fusion.

The cushioning members 10 and 20 are not limited to rubber.
Any material may be used as long as it has a damper function, and for example, an elastomer may be used. ○ Mounting parts 13, 23, 14, 24 and housing 8,
2a, a screw portion is formed, and the mounting portions 13, 2 are screwed together.
It is good also as composition which fixes 3, 14, 24 and housing 8, 2a.

The inventions (technical ideas) other than those described in the claims which can be grasped from the embodiment will be described below. (1) In the invention described in claim 5 or claim 6,
The bolster mounting portion is formed integrally with the bolster housing.

[0044]

As described above in detail, according to the first to sixth aspects of the present invention, it is possible to prevent the vibration of the bolster from directly transmitting to the motor housing, and to incorporate the cushioning member. It becomes easier.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a first embodiment.

FIG. 2 is a partial schematic sectional view showing a second embodiment.

FIG. 3 is a partial schematic cross-sectional view of another embodiment.

FIG. 4 is a schematic sectional view of a conventional device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Single spindle drive spindle device, 2 ... Bolster, 2a ... Housing, 4 ... Spindle, 5 ... Motor, 6 ... Rotor,
7 ... Spindle rail, 8 ... Motor housing, 9 ... Stator, 10,20 ... Buffer, 11 ... Support, 12 ... Mounting part, 13,23 ... Motor housing mounting part, 1
4,24 ... Bolster mounting part.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Nori Fujii 2-1-1 Toyota-cho, Kariya-shi, Aichi F-term in Toyota Industries Corporation (reference) 4L056 AA02 AA32 BD32 BD43 DA33 FB07

Claims (6)

[Claims] 1. A motor having a spindle rotatably supported by a bolster, a rotor fixed to the spindle so as to be integrally rotatable, and a stator fixed in a motor housing supported by a spindle rail. A single-spindle drive spindle device of a spinning machine driven by: a damping member having a damper action between the housing of the bolster and the motor housing; A single-spindle drive spindle device of a spinning machine provided in a state of being fixed to a mounting portion. 2. The single-spindle drive spindle device for a spinning machine according to claim 1, wherein the buffer member is fixed to the two housings or a mounting portion thereof by heat fusion. 3. The single-spindle drive spindle device for a spinning machine according to claim 1, further comprising a separation buffer member for separating a spindle rail from the motor housing. 4. The cushioning member is formed in an annular shape,
The single spindle of a spinning machine according to any one of claims 1 to 3, wherein the single bolster is disposed so as to be sandwiched between a mounting portion on the housing side of the bolster and a mounting portion on the motor housing side. Drive spindle device. 5. The two housings are configured to be attachable to a spindle rail via a support having an annular cushioning member, and the support is formed integrally with a mounting portion for the spindle rail and an upper portion of the mounting portion. 5. The spinning machine according to claim 4, further comprising a motor housing mounting portion, wherein the buffer member is fixed on the motor housing mounting portion, and an annular bolster mounting portion is fixed on the buffer member. Single spindle drive spindle device. 6. The two housings are configured to be attachable to a spindle rail via a support having an annular cushioning member. The support is provided with a mounting portion for the spindle rail and the buffer on an upper portion of the mounting portion. 5. An annular motor housing mounting portion disposed outside with a member interposed therebetween, and an annular bolster mounting portion disposed inside, the buffer member also serving as the separating buffer member. 4. The single spindle drive spindle device of the spinning machine according to 1.