JPH07278968A - Structure for supporting motor of spinning frame - Google Patents

Abstract

PURPOSE:To support a motor in a state to be movable in the direction to vary the distance between the rotary shaft of the motor and a driving shaft without necessitating too much space for the size of the motor in the width of the machine frame. CONSTITUTION:A supporting base 10 is horizontally placed on the out end OE of a machine frame 1 and a base plate 11 is placed on the supporting base 10 in a state rotatable around a shaft 11a placed parallel to a driving shaft 2 and inserting two bolt shafts 15 vertically protruded from the upper surface of the supporting base 10 into an oblong hole 16. A main motor 6 is fixed nearly at the center of the upper surface of the base plate 11 in a state to direct the rotational shaft 6a parallel to the driving shaft 2. The tension of a belt 9 extended between a motor pulley 8 and a drive pulley 5 is adjusted by varying the inclination angle 6 of the base plate 11 relative to the supporting base 10. The base plate 11 is fixed to the bolt shaft 15 through a spherical washer 17 with a nut 18 keeping a prescribed inclination angle relative to the supporting base 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spinning machine such as a spinning machine and a ring twisting machine for adjusting tension of a belt mounted between a driving shaft for driving a spindle and a rotating shaft of a main motor. The present invention relates to a motor support structure in a spinning machine in which a motor is installed such that its position can be displaced with respect to a drive shaft.

[0002]

2. Description of the Related Art Generally, in a chin-pulley type ring spinning machine, a spindle is installed between a chin-pulley fitted at a predetermined interval to a driving shaft extending substantially in the center of the machine parallel to the machine longitudinal direction. It is operatively connected to the driving shaft via an endless tape hung on the. A main motor is installed below the driving shaft at the out end of the machine base, and it is between the motor pulley attached to the rotating shaft of the main motor and the drive pulley attached to the end of the driving shaft on the out end side. An endless belt is hung on the. The spindle is rotatably driven at a high speed based on the rotation of the driving shaft transmitted from the driving force of the main motor through the belt.

In order to efficiently transmit the power from the rotary shaft of the main motor to the driving shaft, it is necessary that the tension of the belt mounted between the pulleys is appropriately adjusted. Since the belt stretches slightly due to the tension applied during the operation of the machine base over a long period of use, it is necessary to periodically adjust the belt tension. Usually, the tension of the belt is adjusted by displacing the position of the main motor in a direction in which the main motor is separated from the driving shaft. Conventionally, the support structure shown in FIGS. 6 and 7 is known as a motor support structure for displacing the position of the motor.

FIG. 6 is conventionally used as a support structure for a main motor of a ring spinning machine. A support board 42 to which the main motor 41 is directly fixed has four elongated holes 42a extending in the machine width direction. Has been formed. Main motor 4
1 is a rotating shaft (not shown) for attaching the motor pulley 43
Is parallel to the driving shaft 44, and is fastened by a bolt 46 and a nut (not shown) inserted through the bolt hole 45a formed in the leg portion 45 and the long hole 42a of the support board 42. It is fixed on the support board 42. Therefore, the main motor 41 on the support board 42
Since the distance between the axis of the driving shaft 44 and the axis of the rotating shaft is changed by moving the fixing position of the above in the longitudinal direction of the long hole 42a, the belt mounted between the motor pulley 43 and the drive pulley 47 is changed. The tension of 48 can be adjusted.

Further, in the motor support structure shown in FIG.
A base plate 49 that fixes the motor 41 such that its rotation axis 41a is parallel to the driving shaft 44 is rotatable about an axis 49a that is parallel to the driving shaft 44 with respect to a support board 50 that is horizontally arranged. It is provided in. On the support board 50, 2 at the end opposite to the shaft 49a.
This (only one is shown in the figure) bolt shaft 51 is shaft 49a
It is provided so as to be rotatable around a shaft 51a parallel to.
The base plate 49 is fixed by fastening a nut 52 to a bolt shaft 51 that is inserted orthogonally to a long hole 49b formed at the end thereof. Since the base plate 49 is fixed in a state in which the base plate 49 is always orthogonal to the bolt shaft 51 regardless of the inclination angle with respect to the support plate 50, the nut 52 is fastened to the base plate 49 and the bolt shaft 5.
1 is firmly fixed. Therefore, by changing the inclination angle of the base plate 49 with respect to the support plate 50, the distance between the axes of the driving shaft 44 and the rotation shaft 41a is changed, so that the motor pulley 43 and the drive pulley 47 are mounted. The tension of the belt 48 can be adjusted.

[0006]

By the way, there is a demand for narrowing the machine base width in order to save the installation space of the machine base in the factory. However, according to the support structure shown in FIG. 6, it is necessary to form the support board 42 wide in the machine width direction so that the installation position of the main motor 41 with respect to the support board 42 can be shifted in the machine width direction. Further, in this method, since the axial center distance between the driving shaft 44 and the rotating shaft of the main motor 41 facing each other in the vertical direction is displaced only by the horizontal movement of the main motor 41 in the machine width direction, the main motor 41 It is necessary to move a large distance in the machine width direction compared with the displacement amount between the axes.

Further, according to the support structure shown in FIG. 7, the bolt shaft 51 is always orthogonal to the base plate 49 inclined at an arbitrary angle in order to firmly fasten the base plate 49 and the bolt shaft 51 with the nut 52. It is necessary to place it in a state in which it does. When the inclination angle of the base plate 49 is relatively large, it is necessary to incline the bolt shaft 51 so that the tip of the bolt shaft 51 faces the inside of the machine base. Therefore, the base of the bolt shaft 51 is fixed to the fastening position of the nut 52 in the machine base width direction. It is necessary to locate it on the outer side of the machine base. Therefore, it is necessary to form the support board 50 wide in the machine width direction. Therefore, it is necessary to secure a machine base width corresponding to the support boards 42 and 50 so that the support boards 42 and 50 can be arranged in the machine base.

In the case of a short stand (for example, about 480 spindles or less), since a relatively small motor is used as the main motor, there is room to narrow the machine stand width, but a long stand with a large number of spindles is large. Because the motor is used,
The reality is that the machine width cannot be reduced any further.

Further, in the support structure of FIG. 7, the main motor 41 is supported only by the shaft 49a and the shaft 51a with respect to the support plate 42 with the base plate 49 and the bolt shaft 51 interposed therebetween. The vibration caused by slight rattling of the shafts 49a and 51a when driving the motor 41 poses a problem. Further, according to the support structure of FIG. 7, since the bolt shaft 51 rotates, the nut 52 is adjusted when the tension of the belt is adjusted.
When the bolt is loosened, the bolt shaft 51 swings, forcing an unstable work, and it is difficult to position the base plate 49 or the like during the tension adjustment work.

Further, Japanese Patent Publication No. 47-45978 discloses a belt driving device for a tangential belt. It is conceivable to apply this belt drive device in a state in which the belt is placed in the vertical direction. But,
According to this belt drive device, the structure becomes complicated due to the arrangement of a plurality of cylinders and pistons, and a new problem arises in that a large amount of installation space must be secured in the vertical direction due to the arrangement of these cylinders and pistons.

The present invention has been made in order to solve the above-mentioned problems, and an object thereof is to provide a motor with a rotating shaft and a drive shaft without requiring a space in the machine width direction for the size of the motor. An object of the present invention is to provide a support structure for a motor in a spinning machine, which is capable of supporting the shaft center distance so that the shaft center distance can be changed.

[0012]

In order to solve the above-mentioned problems, in the invention described in claim 1, the end of the drive shaft extending in parallel with the longitudinal direction of the machine is installed substantially in the center of the machine frame. A belt is hung between the driven pulley attached to the driven pulley and the drive pulley attached to the rotary shaft of the motor disposed below the drive shaft at the machine base end, and transmitted through the belt. In a spinning machine that drives a spindle by rotation of the drive shaft based on the driving force of the motor, a base plate installed in a state where the motor has its rotation shaft parallel to the axial direction of the drive shaft is placed in a substantially vertical state. In a state in which the bolt shaft is inserted into an insertion portion formed in the base plate with respect to the provided bolt shaft, and a mounting surface of the motor on the base plate is parallel to the drive shaft. The bolt is installed so that it can move in the vertical direction. Is inserted into the insertion portion at a predetermined position in the axial direction, the base plate is screwed onto the bolt shaft in the vicinity of the insertion portion in accordance with the inclination angle of the base plate with respect to the bolt shaft. The nut body is fastened and fixed to the bolt shaft via a washer means capable of continuously changing the angle formed between the contact surfaces of the nut body and the base plate.

According to a second aspect of the invention, there is provided the above-mentioned first aspect.
In the spinning machine according to, the base plate installed in a state where the motor has its rotation axis parallel to the axial direction of the drive shaft,
The support plate is rotatably provided about an axis parallel to the axial direction of the drive shaft provided on the first end side of the base plate with respect to the support plate, and the support plate is provided on the second end side of the base plate. A bolt shaft provided in a substantially vertical state is formed into the insertion portion, and the base plate is inserted into the insertion portion at a predetermined axial position with respect to the bolt shaft. The nut body is provided via a washer means capable of continuously changing the angle formed by the nut body screwed onto the bolt shaft and the respective contact surfaces contacting the base plate according to the inclination angle of the base plate. Was fastened and fixed to the bolt shaft in the vicinity of the insertion portion.

According to a third aspect of the present invention, the first aspect
In the spinning machine according to, the base plate installed in a state where the motor has its rotation axis parallel to the axial direction of the drive shaft,
At least 3 installed almost vertically to the support board
It is provided so as to be movable in the axial direction with respect to the bolt shafts of two or more in a state in which the bolt shaft is maintained in a horizontal state, and the base plate forms an insertion portion through which the bolt shaft is inserted. The nut body was fastened and fixed to the bolt shaft through the spherical washer while being inserted into the insertion portion at a predetermined position in the axial direction.

[0015]

According to the invention described in claim 1, with the above construction, the installation surface of the motor is made parallel to the drive shaft in a state where the bolt shaft having the base plate vertically arranged is inserted into the insertion portion. By moving in the vertical direction in the state of holding the belt, the distance between the rotating shaft of the motor and the drive shaft is changed in a state of holding the respective shafts in parallel, and the tension of the belt is adjusted.
As a result, when adjusting the tension of the belt, the base plate only moves along the bolt shaft with the insertion part inserted in the bolt shaft in the vertical state, so the displacement of the base plate in the machine width direction is small. Becomes Further, the base plate is not necessarily orthogonal to the vertical bolt shaft, but is firmly fastened to the bolt shaft by a washer means without any gap between the base plate and the nut body. Therefore, it is not necessary to arrange the bolt shaft in a state of being inclined in the machine width direction so as to be orthogonal to the base plate. Therefore, according to this support structure, the installation space can be narrowed in the machine width direction for the motor size.

According to the second aspect of the present invention, when the tension of the belt is adjusted, the base plate is parallel to the drive shaft in a state where the bolt shaft provided in a vertical state with respect to the support plate is inserted into the insertion portion. By being rotated about the shafts, the distance between the rotation shaft of the motor and the drive shaft is changed in a state where the shafts are held in parallel, and the tension of the belt is adjusted. The base plate is arranged in a state of being inclined with respect to the bolt shaft according to the inclination angle with respect to the support plate, but it is firmly attached to the bolt shaft in the vertical state with no gap between it and the nut body by means of the washer means. To be concluded. Therefore, the base plate can be rotated about the first end side shaft along the bolt shaft in a state where the vertical bolt shaft is inserted into the insertion portion formed on the second end side thereof. The displacement of the base plate in the machine width direction becomes small, and it becomes unnecessary to arrange the bolt shaft in a state of being inclined in the machine width direction with respect to the inclination of the base plate by interposing the spherical washer. Therefore, according to this support structure, the installation space can be narrowed in the machine width direction for the motor size. Further, since the base plate is rotatably provided on the first end side about an axis parallel to the drive shaft, the base plate is held parallel to the drive shaft even if the fastening to the bolt shaft is loosened.

According to the third aspect of the present invention, at the time of adjusting the tension of the belt, at least three or more bolt shafts in which the base plate is vertically arranged with respect to the support plate are inserted into the insertion portion. , The bolt shaft is moved in the axial direction (vertical direction) while maintaining a substantially horizontal state. Then, the distance between the rotary shaft of the motor and the drive shaft is changed in a state where the respective shafts are held in parallel, and the tension of the belt is adjusted. The base plate does not always become completely horizontal when it is moved in the vertical direction, and is not necessarily orthogonal to the bolt axis provided vertically to the support board. However, since the base plate is fastened to the bolt shaft by the nut body via the spherical washer, it is firmly fastened to the bolt shaft without any gap between the base plate and the nut body.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment embodying the present invention will now be described with reference to FIGS.
It will be described with reference to FIG. As shown in FIG. 3, a driving shaft 2 as a drive shaft is rotatably supported in the center of the inside of the spinning frame 1 so as to extend along the longitudinal direction of the frame. Chin pulleys 3 are fitted on the driving shaft 2 at predetermined intervals in the axial direction, and tapes (not shown) are hung between the chin pulleys 3 and two left and right spindles 4. A drive pulley 5 is attached to the end portion of the driving shaft 2 on the out-end OE side.

At the out-end OE of the machine base 1, a main motor 6 is provided below the driving shaft 2 and its rotation shaft 6 is provided.
It is supported by the motor support 7 in a state where a is arranged in parallel with the driving shaft 2. The motor pulley 8 is attached to the rotary shaft 6a of the main motor 6,
An endless belt 9 is hung between the drive pulley 5 and the drive pulley 5.

As shown in FIGS. 1 to 3, the motor support 7
Is provided with a support plate 10 having a square plate shape and a base plate 11 having a square plate shape and a base plate having substantially the same size as that of the support plate 10. The base plate 11 rotates about the shaft portion 11a with respect to the support plate 10. It is movable. That is, the base plate 11 is configured so that the pair of shaft portions 11a formed on the lower surface of the base plate 11 can be rotated by the pair of support brackets 12 having the holes 12a having substantially the same diameter as the shaft portion 11a formed on the upper surface of the support board 10. By being supported, it is rotatable with respect to the support board 10. The motor support 7 is arranged such that the shaft portion 11a is parallel to the driving shaft 2. The support board 10 is horizontally fixed to the lower part of the out end OE.

A pair of legs 13 having bolt holes (not shown) are fixed to the bottom of the main motor 6, and the base plate 1
1, bolt holes (not shown) are formed at positions corresponding to the bolt holes of the leg portion 13. The main motor 6 is fixed on the base plate 11 by the bolts 14 screwed into the bolt holes in the leg portions 13 in a state where the rotary shaft 6a is parallel to the driving shaft 2.

On the upper surface of the support board 10, two bolt shafts 15 are vertically erected at the end portions on the opposite side to the pair of support brackets 12 while being aligned in parallel with the support brackets 12. Long holes 16 are formed in the base plate 11 at positions corresponding to the two bolt shafts 15, and the bolt shafts 15 are inserted into the long holes 16. Since the long hole 16 is formed so as to extend in the direction orthogonal to the shaft portion 11a, the base plate 1
1 is a shaft portion 1 in a state where the bolt shaft 15 is inserted into the long hole 16.
It is rotatable about 1a. Since the base plate 11 rotates about the shaft portion 11 a parallel to the driving shaft 2, the inclination angle θ of the base plate 11 with respect to the support plate 10 is increased.
(Not shown in FIG. 2), the rotary shaft 6a of the main motor 6
Is always parallel to the driving shaft 2.

As shown in FIGS. 2 and 3, the bolt shaft 15
One pair of spherical washers 17 are inserted into each of the upper and lower sides sandwiching the base plate 11, and the base plate 11 is fastened to the nuts 18 from both upper and lower sides with the spherical washer 17 sandwiched between them to attach to the bolt shaft 15. It is fixed.

As shown in FIG. 4, the spherical washer 17 is composed of a set of a female washer 19 and a male washer 20. The female washer 19 is formed in a substantially annular shape, and a spherical concave portion 19b having a spherical concave surface is formed at a position corresponding to the bolt hole 19a at one end surface thereof. Male washer 20
Is a substantially annular shape having a bolt hole 20a, and a spherical convex portion 20b having a convex surface with the same curvature as the spherical concave portion 19b is formed on one end surface thereof. The spherical washer 17 is a spherical concave portion 19b of the female washer 19 and a spherical convex portion 2 of the male washer 20.
0b is used in a fitted state, and the female washer 19 and the male washer 20 can be fitted at any angle by changing the mutual contact portions of the fitted spherical concave portion 19b and spherical convex portion 20b. Is. The spherical washer 17 has a bolt shaft 1
Even if the base plate 11 is inclined at an arbitrary angle with respect to 5, the female washer 19 and the male washer 20 are respectively attached to the base plate 1
The base plate 11 is fastened to the bolt shaft 15 with no gap between the nut 18 and the bolt shaft 15 by fitting and arranging the nut 1 and the nut 18 in close contact with each other.

The base plate 11 is initially arranged with a predetermined inclination angle θ (shown in FIG. 2) with respect to the support plate 10. Here, the initial inclination angle θ is set to an angle smaller than the inclination angle θ when the driving shaft 2, the rotating shaft 6a, and the shaft portion 11a are arranged on the same straight line.

Next, the operation of the motor support structure constructed as described above will be described. First, a method of installing the main motor 6 in the spinning frame 1 will be described. The motor support 7 is installed at a predetermined position of the out-end OE of the machine base 1 such that the shaft portion 11a is parallel to the machine base longitudinal direction. At that time, the inclination angle θ of the base plate 11 with respect to the support plate 10 is set to be large. Next, install the main motor 6 on the base plate 11,
A belt 9 is looped between the drive pulley 5 and the motor pulley 8 of the driving shaft 2. At this time, the inclination angle θ of the base plate 11 is large and the shaft centers of the pulleys 5 and 8 are close to each other, so that the belt 9 is easily hung.

From this state, the two nuts 18 screwed onto the lower surface of the base plate 11 are loosened below the bolt shaft 15 by a predetermined amount, and the nuts 18 are arranged at the same height with respect to the bolt shaft 15. At this time, the base plate 11 rotates in a direction (clockwise direction in FIG. 2) in which the inclination angle θ is reduced by the weight of the main motor 6 by an amount corresponding to the slack of the belt 9. Next, the two nuts 18 on the upper surface side of the base plate 11 are tightened below the bolt shaft 15, and the base plate 11 is tilted at an inclination angle θ.
Rotate in the direction that decreases. Along with this, the main motor 6 is lowered, the distance between the shaft centers of the pulleys 5 and 8 becomes longer, and tension is gradually applied to the belt 9. Then, when an appropriate tension is applied to the belt 9, the fastening of the nut 18 is stopped. When the base plate 11 comes into contact with the nut 18 on the lower surface side of the belt 9 without applying an appropriate tension to the belt 9, the two nuts 18 are further loosened by a predetermined amount, and then the base plate 11 is loosened. The nut 18 on the upper surface side of 11 is tightened until an appropriate tension is applied to the belt 9. Belt 9
When an appropriate tension is applied to the base plate 11, the base plate 11 is fixed at that position.

In the process of fastening the nut 18, the engagement angle between the spherical concave portion 19b of the female washer 19 and the spherical convex portion 20b of the male washer 20 forming the spherical washer 17 is determined by the base plate 11
Is changed according to the change of the inclination angle θ of each spherical washer 1
7 is in close contact with the base plate 11 and the nut 18. This completes the installation of the main motor 6. At this time, the main motor 6 is installed with the base plate 11 slightly tilted upward.

Next, the tension correction work of the belt 9 performed when the machine base 1 is operated for a predetermined time and the belt 9 is loosened will be described. By adjusting the inclination angle θ of the base plate 11 with respect to the support plate 10 (shown in FIG. 2), the axial center position of the rotary shaft 6a of the main motor 6 with respect to the axial center of the driving shaft 2 is displaced, and each pulley 5, 8 is moved. The tension of the belt 9 hung between them is adjusted. That is, when the base plate 11 is rotated from the state shown in FIG. 2 in the clockwise direction of FIG.
Since the shaft center of a rotates clockwise around the shaft portion 11a, the distance between the shaft centers of the pulleys 5 and 8 becomes long, and the belt 9 is further tensioned.

First, 2 which is screwed on the lower surface side of the base plate 11
One nut 18 is loosened below the bolt shaft 15 by a predetermined amount, and each nut 18 is arranged at the same height with respect to the bolt shaft 15. At this time, the base plate 11 rotates in a direction (clockwise direction in FIG. 2) in which the inclination angle θ is reduced by the weight of the main motor 6 by an amount corresponding to the slack of the belt 9. Next, the two nuts 18 on the upper surface side of the base plate 11 are tightened below the bolt shaft 15, and the base plate 11 is rotated in the direction in which the inclination angle θ decreases. Along with this, the main motor 6 is lowered, the distance between the shaft centers of the pulleys 5 and 8 becomes longer, and tension is gradually applied to the belt 9. Then, when an appropriate tension is applied to the belt 9, the fastening of the nut 18 is stopped.
In the process of fastening the nut 18, the engagement angle between the spherical concave portion 19b of the female washer 19 and the spherical convex portion 20b of the male washer 20 forming the spherical washer 17 is changed according to the change of the inclination angle θ of the base plate 11, Each spherical washer 17 closely contacts the base plate 11 and the nut 18. This completes the belt 9 tension correction operation.

As described above, when the main motor 6 is installed and the tension of the belt 9 is corrected, the inclination angle θ of the base plate 11 is increased.
Since it is possible to apply a tension to the belt 9 by reducing the value of the belt 9, when applying a tension to the belt 9, the weight of the main motor 6 is used to make the belt 9 relatively light.
The tension of can be adjusted. In particular, when the tension of the belt 9 is adjusted, the tension of the belt 9 can be easily adjusted without many workers or jacks.

When the belt 9 is newly replaced,
First, the two nuts 1 screwed onto the upper surface of the base plate 11
8 is gradually loosened above the bolt shaft 15. Next, the two nuts 18 on the lower surface side of the base plate 11 are moved above the bolt shaft 15. At this time, attach the nut 18 to the main motor 6
It is necessary to move the base plate 11 upwards against its own weight, but since the base plate 11 is only rotated around the shaft portion 11a, the inclination angle θ of the base plate 11 is relatively light due to the lever principle.
Can be rotated in the direction of increasing. In this way, when the base plate 11 is rotated in the direction in which the inclination angle θ increases (counterclockwise direction in FIG. 2) and the main motor 6 is slightly raised, the distance between the pulleys 5 and 8 is increased by the new belt 9. It will be wearable. In this state, the old belt 9 is removed, and the new belt 9 is hooked between the pulleys 5 and 8. Hereinafter, the tension is applied to the belt 9 in the same procedure as when the main motor 6 is installed and when the tension of the belt 9 is corrected. In this way, the replacement work of the belt 9 can be easily performed without many workers or jacks.

As described in detail above, according to the motor support structure of this embodiment, even if the inclination angle between the base plate 11 and the bolt shaft 15 is not a right angle, the base washer 11 is arranged in an inclined state through the spherical washer 17. The base plate 11 to the nut 18
Thus, the bolt shaft 15 can be firmly fastened. Therefore, as in the conventional support structure shown in FIG. 7, the bolt shaft 15 is attached to the inclined base plate 11 to firmly fasten the bolt plate 15 and the inclined base plate 11.
Since it is not necessary to make them orthogonal to each other, it is not necessary to arrange the bolt shaft 15 with its upper end inclined toward the inside of the machine base. As a result, it becomes possible to vertically install the bolt shaft 15, and the base portion of the bolt shaft 15 is more inside the machine base (the center of rotation of the base plate 11) than in the conventional support structure of FIG. Can be placed at. Therefore, the length of the motor support 7 in the machine width direction, which has been a problem in narrowing the machine base 1 in the width direction, can be shortened as compared with the conventional one.
By installing the main motor 6 on the motor support 7, the machine base 1 can be narrowed in the width direction.

When adjusting the tension of the belt 9, since the bolt shaft 15 is fixed to the support board 10, the base plate 11
Since it is only necessary to position the base plate 11 and the unstable work is not forced, the base plate 11 can be easily arranged at an appropriate position. As a result, appropriate tension can be applied to the belt 9 with a relatively simple operation.

Further, according to the conventional support structure shown in FIGS. 6 and 7, the bolt 46 and the nut 5 are adjusted when the tension of the belt 48 is adjusted.
When 2 is loosened, the main motor 41 becomes free with respect to the support plate 42, or the bolt shaft 51 swings to cause the base plate 49 to move.
The main motor 41 is positioned by the belt 48
It could not be done while checking the tension of. However, according to the motor support structure of the present embodiment, the positioning of the main motor 6 can be performed while checking the tension of the belt 9 by loosening and tightening the nut 18. as a result,
The appropriate tension required for the belt 9 can be accurately applied.

When the belt 9 is replaced, the main motor 6 is used so that the old and new belts 9 can be easily replaced.
It is necessary to raise the
Since 1 is configured to rotate about the shaft portion 11a, the main motor 6 can be lifted by a relatively light force by the leverage principle.

Further, according to the support structure of the present embodiment, the base plate 11 for supporting the main motor 6 is fixed to the support plate 10 on one side by the bolt shaft 15, so that FIG.
Compared with the support structure that is rotatably supported on both sides of the base plate 49 shown in FIG. 5, vibration generated due to slight rattling of the rotating portion when the main motor 6 is driven can be reduced. .

Further, the motor support 7 is installed in a state where the shaft portion 11a is parallel to the driving shaft 2, and the main motor 6 is installed on the base plate 11 so that the rotary shaft 6a is parallel to the shaft portion 11a. If you do, base plate 1
With the rotation of 1, the main motor 6 can be moved up and down with the rotation shaft 6a thereof kept parallel to the driving shaft 2. As a result, it is possible to prevent the belt 9 from being twisted between the pulleys 5 and 8 in a twisted state.

The present invention is not limited to the above embodiments, but may be configured as follows, for example, without departing from the spirit of the invention. (1) As shown in FIG. 5, four bolt shafts 15 (only two are shown in the figure) are vertically installed at four corners on the support board 21, and the bolt shafts 15 are inserted into the bolt holes 22a. The base plate 22 is arranged so as to be movable in the axial direction of the bolt shaft 15. The base plate 22 is fastened and fixed to the bolt shaft 15 by the nut 18 via the spherical washer 17. And
By vertically moving the base plate 22 along the bolt shaft 15 in a horizontal state, the main motor 6 installed on the base plate 22 is vertically displaced to change the distance between the motor pulley 8 and the drive pulley 5. Alternatively, the tension of the belt 9 may be adjusted. Also with this configuration, the machine base 1 can be narrowed in the width direction. Further, even if the base plate 22 is slightly inclined from the horizontal, the nut 18 can be securely fastened to the bolt shaft 15 without a gap between the base plates 22 by interposing the spherical washer 17. Moreover, it is possible to prevent the nut 18 and the screw of the bolt shaft 15 from being crushed at the time of fastening. Further, the main motor 6 is the support board 1
Since it is firmly fixed to the No. 1 via four bolt shafts 15 and is not supported via the shaft portion 11a as in the above-described embodiment, the vibration at the time of driving the main motor 6 can be further suppressed. You can In this configuration, the number of bolt shafts 15 is 4 if the base plate 22 can be supported horizontally.
The number of books is not limited to three, and may be three or five or more.

(2) In the above embodiment, the spherical washer 17 has a pair of concave and convex surfaces which are spherical, but the shape of the concave and convex surface into which the washer means is fitted is not limited to a spherical surface. For example, a pair of concavo-convex surfaces may be formed in a cylindrical shape. In the above-described embodiment, the base plate 11 rotates about the shaft portion 11a, and the inclination direction of the base plate 11 with respect to the bolt shaft 15 is only one direction. Therefore, the washer means having a cylindrical uneven surface forms the uneven surface. It may be arranged so that the axis of the cylinder is parallel to the shaft portion 11a. In this way, the nut 18 can be firmly fastened to the bolt shaft 15 without a gap between the base plates 11 even when the base plate 11 is tilted at an arbitrary angle with respect to the bolt shaft 15.

(3) Male washer 20 of spherical washer 17
May be formed integrally with the nut 18. Further, in the motor support 7 of FIG. 5, the female washer 19 is attached to the base plate 11
Or a spherical concave portion that can be fitted to the spherical convex portion 20b of the male washer 20 on the base plate 11 and the bolt hole 22a.
You may form in the position corresponding to. According to these configurations, the number of parts of the washer can be reduced.

(4) In the above embodiment, the elongated hole 1 is used as the insertion portion.
Although 6 and the bolt hole 22a are formed, the insertion portion is not limited to the hole, and may be partially opened like a groove formed at the end of the base plate 11.

(5) The spindle drive system of the spinning machine to which the present invention is applied may be any structure in which the spindle is driven by the rotation of the driving shaft based on the drive of the main motor, and is not limited to the chin pulley system, for example, the driving shaft. A belt mounted on a pulley fitted on a belt is wound around a large number of weights exceeding four weights, for example, JP-A-5-15.
A tangential belt system as disclosed in Japanese Patent No. 6525 may be used.

(6) Replace each pulley 5, 8 with a step pulley,
A configuration may be adopted in which the rotation ratio between the rotation shaft 6a of the motor 6 and the driving shaft 2 is changed by changing the belt mounting position with respect to the step pulley.

(7) In the above embodiment, the number of bolt shafts 15 is not limited to two. It may be one or three or more. Bolt shaft 1
It suffices that 5 has a function of supporting and fixing the base plate 11 that is rotatably provided around the shaft portion 11a. Therefore, even with only one, the base plate 11 can be fixed at a predetermined inclination angle.

(8) In the above-described embodiment, the bolt shaft 15 in the vertical state is erected on the support board 10, but the frame of the machine base 1 is provided with the bolt shaft in the vertical state, and the support board is composed of the frame. You may.

(9) The present invention may be applied to a spinning machine other than the ring spinning machine, such as a ring twisting machine, in which the spindle is driven by the rotation of the driving shaft. The technical idea grasped from the above embodiment and not described in the scope of the claims will be described below together with the effect thereof.

(1) In claim 1, the washer means is a spherical washer. With this configuration, the same effect as that of the invention described in claim 1 can be obtained. (2) In claim 2, the washer means is a spherical washer. With this configuration, the same effect as that of the invention described in claim 2 can be obtained.

[0049]

As described above in detail, according to the invention described in claim 1, when the tension of the belt is adjusted, the base plate is inserted along the bolt shaft in a vertical state through the insertion portion thereof. Since the displacement of the base plate in the machine width direction is slight only by moving the motor, the motor does not require space in the machine width direction for the motor size, and the motor is centered between its rotating shaft and drive shaft. An excellent effect is obtained in that the distance can be supported in a direction in which the distance can be changed.

According to the second aspect of the present invention, the base plate on which the motor is installed with its rotation axis parallel to the drive shaft is provided so as to be rotatable about the axis parallel to the drive shaft. Therefore, even if the fastening of the nut body is loosened, the rotary shaft and the drive shaft can be kept in parallel at all times.

Further, according to the invention of claim 3, since the base plate is provided with the spherical washer even if the base plate is not substantially orthogonal to the bolt axis, the base plate is made strong by the nut body without any gap. It has an excellent effect that it can be fastened to a bolt shaft.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a support structure of a motor according to an embodiment of the present invention.

FIG. 2 is a schematic front view of a motor support structure.

FIG. 3 is a partial schematic side view of the spinning machine.

FIG. 4 is a perspective view showing a spherical washer inserted through a bolt.

FIG. 5 is a schematic front view showing a support structure of a motor of another example.

FIG. 6 is a schematic perspective view showing a conventional motor support structure.

FIG. 7 is a schematic front view showing a conventional motor support structure.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Spinning machine stand as a spinning machine stand, 2 ... Driving shaft as a drive shaft, 4 ... Spindle, 5 ... Drive pulley as a driven pulley, 6 ... Main motor as a motor, 6a ... Rotating shaft, 7 ... Motor Support tool, 8 ... Motor pulley as drive pulley, 9 ... Belt, 10 ... Support plate, 11 ... Base plate as base plate, 11a ... Shaft part as shaft, 15 ... Bolt shaft, 16 ... Long hole as insertion part 1
7 ... Spherical washer as washer means, 18 ... Nut as nut body, 22 ... Base plate as base plate, 22
a ... Bolt holes as insertion parts.

Claims (3)

[Claims] 1. A driven pulley attached to an end of a drive shaft extending substantially in the center of a spinning frame and parallel to the longitudinal direction of the frame, and a pulley disposed at the end of the frame below the drive shaft. In a spinning machine, a belt is hung between a driving pulley attached to a rotating shaft of a motor, and the spindle is driven by rotation of the driving shaft based on the driving force of the motor transmitted through the belt, A base plate installed in a state where the motor has its rotation axis parallel to the axial direction of the drive shaft, and the bolt is inserted into an insertion portion formed in the base plate with respect to a bolt shaft provided in a substantially vertical state. With the shaft inserted, the installation surface of the motor on the base plate is provided so as to be movable in the up-and-down direction while maintaining parallel to the drive shaft, and the bolt shaft is provided at a predetermined position in the axial direction. The base plate is inserted into the insertion portion. In the vicinity of the insertion portion, the angle formed by each contact surface that contacts the nut body screwed to the bolt shaft and the base plate is continuously changed according to the inclination angle of the base plate with respect to the bolt shaft. A support structure for a motor in a spinning machine, which is fastened and fixed to the bolt shaft by the nut body via possible washer means. 2. The spinning machine according to claim 1, wherein a base plate installed in a state where the motor has its rotation axis parallel to the axial direction of the drive shaft, A bolt that is rotatably provided around an axis parallel to the axial direction of the drive shaft that is provided on the first end side and that is provided on the second end side of the base plate in a substantially vertical state on the support board. According to the inclination angle of the base plate with respect to the bolt shaft, with the base plate forming an insertion part through which the shaft is inserted, the bolt shaft being inserted into the insertion part at a predetermined position in the axial direction of the base plate. The bolt is provided in the vicinity of the insertion portion by the nut body through a washer means capable of continuously changing the angle formed between the nut body screwed to the bolt shaft and the abutment surfaces abutting the base plate. A motor support structure for a spinning machine fastened to a shaft. 3. The spinning machine according to claim 1, wherein the base plate installed in a state where the rotation axis of the motor is parallel to the axial direction of the drive shaft is substantially vertical to the support plate. At least three or more bolt shafts provided are movably provided in a state in which the bolt shafts are kept horizontal in the axial direction, and the base plate has an insertion portion through which the bolt shafts are inserted. A supporting structure for a motor in a spinning machine, wherein a bolt body is fastened and fixed to the bolt shaft through a spherical washer in a state where the bolt shaft is inserted into the insertion portion at a predetermined position in the axial direction.