CN105449917A - Rotary motor - Google Patents
Rotary motor Download PDFInfo
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- CN105449917A CN105449917A CN201510586384.4A CN201510586384A CN105449917A CN 105449917 A CN105449917 A CN 105449917A CN 201510586384 A CN201510586384 A CN 201510586384A CN 105449917 A CN105449917 A CN 105449917A
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- axle
- mentioned
- main shaft
- motor
- rotating machine
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Abstract
The present invention provides a rotary motor, which is able to realize the improvement of a balance precision of a shaft. The rotary motor has a motor part (4) configured to allow the shaft arranged in the housing (2) to rotate around the shaft direction, and a main shaft part (5) configured to support the shaft to rotation at will around the direction of winding the shaft. The shaft (3) has a first shaft part (3A) and a second shaft part (3B) which are connected in a separation mode in the shaft direction.
Description
Technical field
The present invention relates to the electric rotating machine that axle is rotated.
Background technology
In the past, known a kind of electric rotating machine, in order to make axle High Rotation Speed, this electric rotating machine possesses: motor part, and it makes axle along rotating around direction of principal axis; And main shaft part, axle is supported to edge around direction of principal axis rotatable (for example, referring to patent documentation 1) by it.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2010-217167 publication
In such electric rotating machine, need axle to be inserted in the shell of motor part and main shaft part.But when the output shaft of axle is expanding, the direction of axle being inserted the shell of motor part and main shaft part is restricted.Consequently, likely the balanced adjustment of axle in motor part and main shaft part cannot suitably be carried out.
Summary of the invention
Therefore, the object of the invention is to, the electric rotating machine that can improve shaft balancing precision is provided.
The electric rotating machine of one aspect of the present invention possesses: motor part, and it makes setting axle in the enclosure along rotating around direction of principal axis; And main shaft part, axle supports to along rotatable around direction of principal axis by it, and axle has the first axle part and the second axle part that link up in the mode that can be separated in the axial direction.
As an execution mode, also can like this: motor part and main shaft part are along the axially-aligned of axle, and axle has: motor drive shaft portion, and it forms motor part; Main shaft axle portion, it forms main shaft part; And output shaft, it extends from main shaft axle portion to the opposition side in motor drive shaft portion, and the first axle part comprises motor drive shaft portion and main shaft axle portion, and the second axle part comprises output shaft.
As an execution mode, also can like this: motor part and main shaft part are along the axially-aligned of axle, and axle has: motor drive shaft portion, and it forms motor part; Main shaft axle portion, it forms main shaft part; And output shaft, it extends from main shaft part to the opposition side of motor part, and the first axle part comprises motor drive shaft portion, and the second axle part comprises main shaft axle portion and output shaft.
As an execution mode, also can like this: the first axle part and the second axle part are chimeric and linked by the conical surface.
As an execution mode, also can like this: main shaft part has bearing, and described bearing comprises: outer ring, and it is installed in shell; And inner ring, it is installed in main shaft axle portion, is formed with pre-splenium at the first axle part by the terminal part of the second axle part side, and described pre-splenium is fastening and apply precompressed to bearing by inner ring.
As an execution mode, also can like this: the first axle part and the second axle part are chimeric and linked by screw thread.
As an execution mode, also can like this: axle has guide portion, described guide portion is used for carrying out aligning to the first axle part and the second axle part.
As an execution mode, also can like this: guide portion has: protuberance, it is arranged on the terminal part by the first axle part side of the second axle part; And recess, it is arranged on the terminal part by the second axle part side of the first axle part and embeds for protuberance.
Invention effect
According to the present invention, shaft balancing precision can be improved.
Accompanying drawing explanation
Fig. 1 is the cutaway view of the electric rotating machine that the first execution mode is shown.
Fig. 2 is the exploded view of axle.
Fig. 3 is the figure of the assembly method for illustration of electric rotating machine.
Fig. 4 is the figure of the assembly method for illustration of electric rotating machine.
Fig. 5 is the figure of the assembly method for illustration of electric rotating machine.
Fig. 6 is the cutaway view of the electric rotating machine that the second execution mode is shown.
Fig. 7 is the exploded view of axle.
Fig. 8 is the figure of the assembly method for illustration of electric rotating machine.
Fig. 9 is the figure of the assembly method for illustration of electric rotating machine.
Figure 10 is the figure of the assembly method for illustration of electric rotating machine.
Figure 11 is the figure of the assembly method for illustration of electric rotating machine.
Figure 12 is the cutaway view of the electric rotating machine that the 3rd execution mode is shown.
Figure 13 is the exploded view of axle.
Figure 14 is the figure of the assembly method for illustration of electric rotating machine.
Figure 15 is the figure of the assembly method for illustration of electric rotating machine.
Figure 16 is the figure of the assembly method for illustration of electric rotating machine.
Figure 17 is the figure of the assembly method for illustration of electric rotating machine.
Figure 18 is the cutaway view of the electric rotating machine that comparative example is shown.
Figure 19 is the figure of the assembly method for illustration of electric rotating machine.
Figure 20 is the figure of the assembly method for illustration of electric rotating machine.
Figure 21 is the figure of the assembly method for illustration of electric rotating machine.
Label declaration
1: electric rotating machine; 2: shell; 3: axle; 3A: the first axle part; 3B: the second axle part; 4: motor part; 5: main shaft part; 6: transducer; 7: cover; 21: motor case portion; 22: main shaft shell portion; 23: support portion, outer ring; 31: motor drive shaft portion; 32: main shaft axle portion; 33: output shaft; 34: inner ring support portion; 35: link protuberance; 36: bolt hole; 37: link recess; 38: through hole; 41: stator; 42: rotor; 43: clutch shaft bearing; 51: the second bearings; 51A: outer ring; 51B: inner ring; 51C: ball; 52: the three bearings; 52A: outer ring; 52B: inner ring; 52C: ball; 53: distance piece; 53A: side, outer ring distance piece; 53B: inner ring side distance piece; 54: side, outer ring precompressed nut; 55: inner ring side precompressed nut; 56: bearing; 101: electric rotating machine; 102: shell; 103: axle; 103A: the first axle part; 103B: the second axle part; 104: motor part; 105: main shaft part; 121: motor case portion; 122: main shaft shell portion; 123: support portion, outer ring; 131: motor drive shaft portion; 132: main shaft axle portion; 133: output shaft; 134: inner ring support portion; 135: link protuberance; 136: bolt hole; 137: link recess; 138: through hole; 154: side, outer ring precompressed nut; 155: inner ring side precompressed nut; 201: electric rotating machine; 203: axle; 203A: the first axle part; 203B: the second axle part; 204: motor part; 205: main shaft part; 231: motor drive shaft portion; 232: main shaft axle portion; 233: output shaft; 234: external thread part; 235: protuberance; 236: recess; 237: internal thread part; 238: pre-splenium; 239: inner ring support portion; 301: electric rotating machine; 303: axle; 304: motor part; 305: main shaft part; 321: motor case portion; 322: main shaft shell portion; 331: motor drive shaft portion; 333: output shaft; B: bolt.
Embodiment
Below, be described in detail with reference to the electric rotating machine of accompanying drawing to execution mode.In addition, in whole accompanying drawing, identical label is marked to same or equivalent part.
[the first execution mode]
Fig. 1 is the cutaway view of the electric rotating machine that the first execution mode is shown.As shown in Figure 1, the electric rotating machine 1 of present embodiment is the device for making axle 3 High Rotation Speed be arranged in shell 2.Electric rotating machine 1 possesses: motor part 4, and it makes the axle 3 be arranged in shell 2 rotate along around direction of principal axis; And main shaft part 5, axle 3 supports to along rotatable around direction of principal axis by it.Motor part 4 and main shaft part 5 are along the axially-aligned of axle 3.
Axle 3 is the rectangular rod-like members being formed as circular cross-section, and is the parts rotated around central axis.Axle 3 has: motor drive shaft portion 31, and it forms motor part 4; Main shaft axle portion 32, it forms main shaft part 5; With output shaft 33, it extends to the opposition side in motor drive shaft portion 31 from main shaft axle portion 32 and is connected with not shown fixture etc.In addition, on the axis direction of axle 3, output shaft 33 side is called load-side, the opposition side of output shaft 33 is called load reverse side.
Motor part 4 possesses: stator 41, and it is fixed in shell 2 side; Rotor 42, it is fixed in side, motor drive shaft portion 31; With clutch shaft bearing 43, motor drive shaft portion 31 supports to rotatable relative to shell 2 by it.
The terminal part of the load reverse side in motor drive shaft portion 31 supports to rotatable relative to shell 2 by clutch shaft bearing 43.Further, in motor part 4, after providing electric power to stator 41, rotor 42 produces revolving force, and relative to shell 2, edge rotates around direction of principal axis in motor drive shaft portion 31.
The transducer 6 of the rotating speed of detection axis 3 is installed near the end of the load reverse side in motor drive shaft portion 31.Transducer 6 is covered by the cover 7 being installed on shell 2.
Main shaft part 5 possesses the second bearing 51, the 3rd bearing 52, distance piece 53, side, outer ring precompressed nut 54 and inner ring side precompressed nut 55.Second bearing 51, the 3rd bearing 52 and distance piece 53 form one group of bearing 56.
The end of the load-side in main shaft axle portion 32 supports to rotatable relative to shell 2 by the second bearing 51.Second bearing 51 has outer ring 51A, inner ring 51B and ball 51C.Outer ring 51A is configured in the inner peripheral surface side of shell 2.Inner ring 51B is configured in side, motor drive shaft portion 31.Ball 51C is inserted between outer ring 51A and inner ring 51B.
The end of the load reverse side in main shaft axle portion 32 supports to rotatable relative to shell 2 by the 3rd bearing 52.3rd bearing 52 has outer ring 52A, inner ring 52B and ball 52C.Outer ring 52A is configured in the inner peripheral surface side of shell 2.Inner ring 52B is configured in side, motor drive shaft portion 31.Ball 52C is inserted between outer ring 52A and inner ring 52B.
Distance piece 53 has side, outer ring distance piece 53A and inner ring side distance piece 53B.Side, outer ring distance piece 53A and inner ring side distance piece 53B is by adjust size in advance.Further, side, outer ring distance piece 53A is configured between outer ring 51A and outer ring 52A, and outer ring 51A is held in outer ring 52A the state be separated.Inner ring side distance piece 53B is configured between inner ring 51B and inner ring 52B, and inner ring 51B is held in inner ring 52B the state be separated.
Side, outer ring precompressed nut 54 is that position for bearing 56 being fixed on regulation is to apply the parts of predetermined precompressed to bearing 56.Side, outer ring precompressed nut 54 is screwed into the inner peripheral surface of shell 2 from load-side and is fixed in set position.Thus, the position of the load-side of outer ring 51A is fixed.
Inner ring side precompressed nut 55 is that position for bearing 56 being fixed on regulation is to apply the parts of predetermined precompressed to bearing 56.Inner ring side precompressed nut 55 is screwed into the end of the load-side in main shaft axle portion 32 and is fixed in set position from load-side.Thus, the position of the load-side of inner ring 51B is fixed.
Shell 2 has: motor case portion 21, its main composition motor part 4; And main shaft shell portion 22, its main composition main shaft part 5.In addition, in the accompanying drawings, main shaft shell forms a part for main shaft part 5 and motor part 4.Motor case portion 21 is linked in the mode that can be separated with main shaft shell portion 22.Be formed with support portion, outer ring 23 in main shaft shell portion 22, support portion, described outer ring 23 supports outer ring 52A from load reverse side.Work as precompressed nut in support portion, outer ring 23.That is, the inner peripheral surface of support portion, outer ring 23 in the end of the load reverse side of main shaft part 5 from main shaft shell portion 22 extends inside the radial direction in main shaft axle portion 32.Further, abutted with outer ring 52A from load reverse side by support portion, outer ring 23, thus the position of the load reverse side of outer ring 52A is fixed.In addition, the external diameter in the external diameter supplying the diameter in the space of main shaft axle portion 32 insertion to be less than output shaft 33 in main shaft shell portion 22 and the motor drive shaft portion 31 under the state being provided with rotor 42.
Fig. 2 is the exploded view of axle.As depicted in figs. 1 and 2, axle 3 has the first axle part 3A and the second axle part 3B.The first axle part 3A and the second axle part 3B are linked in the mode that can be separated on the axis direction of axle 3.That is, the first axle part 3A and the second axle part 3B independently divides body component.Further, linked by the first axle part 3A and the second axle part 3B, thus formed an axle 3.
The first axle part 3A comprises motor drive shaft portion 31 in axle 3 and main shaft axle portion 32.The second axle part 3B comprises the output shaft 33 in axle 3.That is, axle 3 is linked in the mode that can be separated with between output shaft 33 in main shaft axle portion 32.
The bolt hole 36 linking protuberance 35 and be screwed into for bolt B is formed at the terminal part of the load-side of the first axle part 3A.Link protuberance 35 and be formed as the more and more thinner taper of end centered by the central axis of the first axle part 3A.Bolt hole 36 is formed at the radial direction central portion of the first axle part 3A.Be formed at the terminal part of the load reverse side of the second axle part 3B: link recess 37, it inserts for linking protuberance 35; With through hole 38, it inserts for bolt B.Link recess 37 is formed as the inverted cone shape centered by the central axis of the first axle part 3A.Therefore, link in recess 37 by link protuberance 35 is inserted into, thus pass through link protuberance 35 chimeric with the conical surface linking recess 37 and make the first axle part 3A and the second axle part 3B by aligning.In addition, be screwed in bolt hole 36 by bolt B is inserted in through hole 38, thus the first axle part 3A and the second axle part 3B integration by linking.
Be formed with inner ring support portion 34 in main shaft axle portion 32, described inner ring support portion 34 supports the inner ring 51B of the second bearing 51 from load reverse side.Work as precompressed nut in inner ring support portion 34.That is, the outer peripheral face of inner ring support portion 34 in the end of the load reverse side of main shaft part 5 from main shaft axle portion 32 extends outside the radial direction in main shaft axle portion 32.Further, abutted with inner ring 52B from load reverse side by inner ring support portion 34, thus the position of the load reverse side of inner ring 52B is fixed.
Output shaft 33 is given prominence to from shell 2.The large footpath of output shaft 33, can be connected with not shown fixture etc., output shaft 33 has the diameter larger than the diameter in the space for the insertion of main shaft axle portion 32 in main shaft shell portion 22.That is, the external diameter of output shaft 33 is at least cannot through the size in main shaft shell portion 22 in main shaft part 5.
Below, be also described with reference to the assembly method of Fig. 3 to Fig. 5 to electric rotating machine 1.Fig. 3 to Fig. 5 is the figure for being described the assembly method of electric rotating machine.
First, as shown in Figure 3, rotor 42 is fixed on the motor drive shaft portion 31 (rotor fixed work order) of the first axle part 3A.And then, in this rotor fixed work order, by adjusting the installation site etc. of rotor 42, thus carry out the balanced adjustment in motor drive shaft portion 31.In addition, balanced adjustment, also referred to as maintenance balance, refers to: such as, carries out the mensuration of spin balancing, adjusts the scope making spin balancing in regulation according to the configuration etc. of this measurement result to each parts.
After rotor fixed work order, below, as shown in Figure 4, assembling main shaft part 5 (main shaft part assembly process).In main shaft part assembly process, first, the second bearing 51, the 3rd bearing 52 and distance piece 53 are installed on main shaft shell portion 22.Then, the first axle part 3A being fixed with rotor 42 is inserted in main shaft shell portion 22 from load reverse side.And then, main shaft axle portion 32 is inserted into the inner side of inner ring 51B, inner ring side distance piece 53B and inner ring 52B.Then, side, outer ring precompressed nut 54 be screwed into the inner peripheral surface in main shaft shell portion 22 and be fixed on set position.Then, inner ring side precompressed nut 55 be screwed into the outer peripheral face in main shaft axle portion 32 and be fixed on set position.Thus, bearing 56 is fixed in the position of regulation and applies predetermined precompressed to whole bearing 56.And then, in this main shaft part assembly process, by adjusting the amount of screwing etc. of the installation site of the second bearing 51, the 3rd bearing 52 and distance piece 53, inner ring side precompressed nut 55 and side, outer ring precompressed nut 54, thus carry out the balanced adjustment in main shaft axle portion 32.Thus, main shaft part assembly process terminates.
After main shaft part assembly process terminates, then, as shown in Figure 5, motor part 4 (motor part assembly process) is assembled.In motor part assembly process, first, stator 41 is fixed on the inner peripheral surface in motor case portion 21, and clutch shaft bearing 43 is installed on motor drive shaft portion 31.In addition, also the installation of stator 41 relative to motor case portion 21 can be carried out in the operation more forward than motor part assembly process.Then, the first axle part 3A is inserted in motor case portion 21 from load-side.And then, motor drive shaft portion 31 is inserted into the inner side of stator 41.Then, motor case 21 and main shaft shell portion 22 are linked up.Thus, motor part assembly process terminates.
After motor part assembly process terminates, then, the first axle part 3A and the second axle part 3B is linked up (axle link process).In axle link process, first, link protuberance 35 is inserted in link recess 37.Thus, the first axle part 3A and the second axle part 3B is by aligning.Then, bolt B is screwed in bolt hole 36 through through hole 38.Thus, axle link process terminates.
After axle link process terminates, then, as shown in Figure 1, near end transducer 6 being installed on the load reverse side in motor drive shaft portion 31 (transducer installation procedure).Further, cover 7 is installed on shell 2, utilizes cover 7 covering sensor 6.Thus, transducer installation procedure terminates.
Here, the comparative example utilizing a root part to form axle is described.
Figure 18 is the cutaway view of the electric rotating machine that comparative example is shown.As shown in figure 18, in the electric rotating machine 301 of comparative example, in the same manner as the electric rotating machine 1 of present embodiment, the external diameter in the external diameter supplying the diameter in the space of main shaft axle portion 332 insertion to be less than output shaft 333 in main shaft shell portion 322 and the motor drive shaft portion 331 under the state being provided with rotor 42.But the electric rotating machine 301 of comparative example is different from the electric rotating machine 1 of present embodiment, axle 303 is made up of a root part.Therefore, in the electric rotating machine 301 of comparative example, from load reverse side, axle 303 cannot be inserted in main shaft shell portion 322.In addition, under the state that rotor 42 is installed on motor drive shaft portion 331, from load-side, axle 303 cannot be inserted in main shaft shell portion 322.
Therefore, when assembling the electric rotating machine 301 of comparative example, first, as shown in figure 19, axle 303 is inserted in main shaft shell portion 322 from load-side and assembles main shaft part 305 (spindle mounted operation).Then, as shown in figure 20, after spindle mounted operation, rotor 42 is fixed on the motor drive shaft portion 331 (rotor fixed work order) of axle 303.Then, as shown in figure 21, axle 303 be inserted in motor case portion 321 from load-side and assemble motor part 304 (motor part assembly process).
Like this, in the electric rotating machine 301 of comparative example, being defined relative to the direction of insertion in motor case portion 321 and main shaft shell portion 322 of axle 303.And then, under the state being equipped with main shaft part 305, the balanced adjustment in motor drive shaft portion 331 must be carried out.Therefore, in the electric rotating machine 301 of comparative example, the balanced adjustment of axle 303 likely cannot be carried out accurately.
In contrast, in the electric rotating machine 1 of present embodiment, axle 3 is formed by linking in the mode that can be separated with the second axle part 3B in the axial direction by the first axle part 3A.Therefore, compared with the situation that axle 303 is made up of a root part like that of the electric rotating machine 301 in comparative example, axle 3 tails off relative to the restriction of the direction of insertion of shell 2.Thereby, it is possible to reduce the parts being assemblied in axle 3 when carrying out the balanced adjustment of axle 3.In addition, under the state be separated by axle 3, the balanced adjustment at each position of axle 3 can be carried out.Consequently, the balance quality of axle 3 can be improved.
Specifically, axle 3 has these two parts of the first axle part 3A and the second axle part 3B and is linked in the mode that can be separated with between output shaft 33 in main shaft axle portion 32.Therefore, it is possible to main shaft axle portion 32 is inserted in main shaft shell portion 22 from load reverse side.Therefore, it is possible to assemble main shaft part 5 after rotor 42 being fixed on motor drive shaft portion 31.Thereby, it is possible to carried out the balanced adjustment in motor drive shaft portion 31 before main shaft part 5 is assemblied in main shaft axle portion 32.Further, the balanced adjustment in motor drive shaft portion 31 and main shaft axle portion 32 can be carried out under the state making the output shaft 33 being in large footpath trend be separated.Consequently, the balance quality of axle 3 can be improved further.
In addition, in electric rotating machine 1, the first axle part 3A and the second axle part 3B is fitted together to by the conical surface and is linked.Therefore, it is possible to by carrying out aligning as point the first axle part 3A of body component and the link of the second axle part 3B to the first axle part 3A and the second axle part 3B.In addition, carrying out aligning to the first axle part 3A and the second axle part 3B is the central axial alignment of instigating the first axle part 3A and the second axle part 3B.
[the second execution mode]
Below, the second execution mode is described.Second execution mode is substantially identical with the first execution mode, but the split position of axle is different from the first execution mode.Therefore, in the following description, only the item different from the first execution mode is described, omits the explanation same with the first execution mode.
Fig. 6 is the cutaway view of the electric rotating machine that the second execution mode is shown.As shown in Figure 6, the electric rotating machine 101 of present embodiment is the device for making axle 103 High Rotation Speed be arranged in shell 102.Electric rotating machine 101 possesses: motor part 104, and it makes the axle 103 be arranged in shell 102 rotate along around direction of principal axis; Main shaft part 105, axle 103 supports to along rotatable around direction of principal axis by it; Transducer 6; And cover 7.Motor part 104 and main shaft part 105 are along the axially-aligned of axle 103.
Axle 103 is the rectangular rod-like members being formed as circular cross-section, and is the parts rotated around central axis.Axle 103 has: motor drive shaft portion 131, and it forms motor part 104; Main shaft axle portion 132, it forms main shaft part 105; With output shaft 133, its opposition side (load-side) from from main shaft axle portion 132 to motor drive shaft portion 131 extends and is connected with not shown fixture etc.
Motor part 104 possesses stator 41, rotor 42 and clutch shaft bearing 43.
Main shaft part 105 possesses the second bearing 51, the 3rd bearing 52, distance piece 53, side, outer ring precompressed nut 154 and inner ring side precompressed nut 155.Second bearing 51, the 3rd bearing 52 and distance piece 53 form one group of bearing 56.
Side, outer ring precompressed nut 154 is that position for bearing 56 being fixed on regulation is to apply the parts of predetermined precompressed to bearing 56.Side, outer ring precompressed nut 154 is screwed into the inner peripheral surface of shell 102 from load-side and is fixed in set position.Thus, the position of the load-side of outer ring 51A is fixed.
Inner ring side precompressed nut 155 is that position for bearing 56 being fixed on regulation is to apply the parts of predetermined precompressed to bearing 56.Inner ring side precompressed nut 155 is screwed into the end of the load reverse side in main shaft axle portion 132 and is fixed in set position from load reverse side.Thus, the position of the load reverse side of inner ring 52B is fixed.
Shell 102 has: motor case portion 121, and it forms motor part 104; And main shaft shell portion 122, it forms main shaft part 105.Motor case portion 121 is linked in the mode that can be separated with main shaft shell portion 122.Be formed with support portion, outer ring 123 in main shaft shell portion 122, support portion, described outer ring 123 supports outer ring 52A from load reverse side.Work as precompressed nut in support portion, outer ring 123.That is, the inner peripheral surface of support portion, outer ring 123 in the end of the load reverse side of main shaft part 105 from main shaft shell portion 122 extends inside the radial direction in main shaft axle portion 132.And then, abutted with outer ring 52A from load reverse side by support portion, outer ring 123, thus the position of the load reverse side of outer ring 52A is fixed.In addition, the diameter in space inserted for main shaft axle portion 132 in main shaft shell portion 122 is less than the external diameter of output shaft 133 and is provided with the external diameter in motor drive shaft portion 131 of state of rotor 42.
Fig. 7 is the exploded view of axle.As shown in Figure 6 and Figure 7, axle 103 has the first axle part 103A and the second axle part 103B.The first axle part 103A and the second axle part 103B are linked in the mode that can be separated on the axis direction of axle 103.That is, the first axle part 103A and the second axle part 103B independently divides body component.Further, linked by the first axle part 103A and the second axle part 103B, thus formed an axle 103.
The first axle part 103A comprises the motor drive shaft portion 131 in axle 103.The second axle part 103B comprises main shaft axle portion 132 in axle 103 and output shaft 133.That is, axle 103 is linked in the mode that can be separated between motor drive shaft portion 131 with main shaft axle portion 132.The link protuberance 135 same with the link protuberance 35 in the first execution mode and bolt hole 36 and bolt hole 136 is formed at the terminal part of the load-side of the first axle part 103A.The link recess 137 same with the link recess 37 in the first execution mode and through hole 38 and through hole 138 is formed at the terminal part of the load reverse side of the second axle part 103B.
Be formed with inner ring support portion 134 in main shaft axle portion 132, described inner ring support portion 134 supports inner ring 52B from load-side.Work as precompressed nut in inner ring support portion 134.That is, the outer peripheral face of inner ring support portion 134 in the end of the load-side of main shaft part 105 from main shaft axle portion 132 extends outside the radial direction in main shaft axle portion 132.Further, abutted with inner ring 51B from load-side by inner ring support portion 134, thus the position of the load-side of inner ring 51B is fixed.
Output shaft 133 is given prominence to from shell 102.The large footpath of output shaft 133, can be connected with not shown fixture etc.Output shaft 133 has the diameter larger than the diameter in the space for the insertion of main shaft axle portion 132 in main shaft shell portion 122.That is, the external diameter of output shaft 133 is at least cannot through the size in main shaft shell portion 122 in main shaft part 105.
Below, be also described with reference to the assembly method of Fig. 8 to Figure 11 to electric rotating machine 1.Fig. 8 to Figure 11 is the figure for being described the assembly method of electric rotating machine.
First, as shown in Figure 8, rotor 42 is fixed on the motor drive shaft portion 131 (rotor fixed work order) of the first axle part 103A.And then, in this rotor fixed work order, by adjusting the installation site etc. of rotor 42, thus carry out the balanced adjustment in motor drive shaft portion 131.
In addition, except rotor fixed work order, main shaft part 105 (main shaft part assembly process) is assembled as illustrated in fig. 9.In addition, rotor fixed work order and main shaft part assembly process both first can carry out arbitrary operation, also can carry out simultaneously.In main shaft part assembly process, first, the second bearing 51, the 3rd bearing 52 and distance piece 53 are installed on main shaft shell portion 122.Then, side, outer ring precompressed nut 154 be screwed into the inner peripheral surface in main shaft shell portion 122 and be fixed on set position.Then, the second axle part 103B is inserted in main shaft shell portion 122 from load-side.And then, main shaft axle portion 132 is inserted into the inner side of inner ring 51B, inner ring side distance piece 53B and inner ring 52B.Then, inner ring side precompressed nut 155 be screwed into the outer peripheral face in main shaft axle portion 132 and be fixed on set position.Thus, bearing 56 is fixed in the position of regulation and applies predetermined precompressed to whole bearing 56.And then, in this main shaft part assembly process, by adjusting the amount of screwing etc. of the installation site of the second bearing 51, the 3rd bearing 52 and distance piece 53, inner ring side precompressed nut 155 and side, outer ring precompressed nut 154, thus carry out the balanced adjustment in main shaft axle portion 132.Thus, main shaft part assembly process terminates.
After main shaft part assembly process terminates, then, as shown in Figure 10, the first axle part 103A and the second axle part 103B is linked up (axle link process).In axle link process, first, link protuberance 135 is inserted in link recess 137.Thus, the first axle part 103A and the second axle part 103B is by aligning.Then, bolt B is screwed in bolt hole 136 through through hole 138.Thus, axle link process terminates.
After axle link process terminates, then, as shown in Figure 10 and Figure 11, motor part 104 (motor part assembly process) is assembled.In motor part assembly process, first, stator 41 is fixed on the inner peripheral surface in motor case portion 121, and clutch shaft bearing 43 is installed on motor drive shaft portion 131.In addition, also the installation of stator 41 relative to motor case portion 121 can be carried out in the operation more forward than motor part assembly process.Then, the first axle part 103A linked with the second axle part 103B is inserted in motor case portion 121 from load-side.And then, motor drive shaft portion 131 is inserted into the inner side of stator 41.Then, motor case 121 and main shaft shell portion 122 are linked up.Thus, motor part assembly process terminates.
After motor part assembly process terminates, then, as shown in Figure 6, near end transducer 6 being installed on the load reverse side in motor drive shaft portion 131 (transducer installation procedure).Further, cover 7 is installed on shell 102, utilizes cover 7 covering sensor 6.Thus, transducer installation procedure terminates.
Like this, in the electric rotating machine 101 of present embodiment, axle 103 is linked in the mode that can be separated between motor drive shaft portion 131 with main shaft axle portion 132 by the first axle part 103A and the second axle part 103B.Therefore, balanced adjustment can be carried out under state independent of each other to motor drive shaft portion 131 and main shaft axle portion 132.Consequently, the balance quality of axle 103 can be improved further.
[the 3rd execution mode]
Below, the 3rd execution mode is described.3rd execution mode is substantially identical with the second execution mode, but the first axle part have inner ring side precompressed nut function this point and the first axle part different with the first execution mode from the connecting structure of the second axle part.Therefore, in the following description, only the item different from the second execution mode is described, omits the explanation same with the second execution mode.
Figure 12 is the cutaway view of the electric rotating machine that the 3rd execution mode is shown.As shown in figure 12, the electric rotating machine 201 of present embodiment is the device for making axle 203 High Rotation Speed be arranged in shell 102.Electric rotating machine 201 possesses: motor part 204, and it makes the axle 203 be arranged in shell 102 rotate along around direction of principal axis; Main shaft part 205, axle 203 supports to along rotatable around direction of principal axis by it; Transducer 6; And cover 7.Motor part 204 and main shaft part 205 are along the axially-aligned of axle 203.
Axle 203 is the rectangular rod-like members being formed as circular cross-section, and is the parts rotated around central axis.Axle 203 has: motor drive shaft portion 231, and it forms motor part 204; Main shaft axle portion 232, it forms main shaft part 205; With output shaft 233, its opposition side (load-side) from from main shaft axle portion 232 to motor drive shaft portion 231 extends and is connected with not shown fixture etc.
Motor part 204 possesses stator 41, rotor 42 and clutch shaft bearing 43.
Main shaft part 205 possesses the second bearing 51, the 3rd bearing 52, distance piece 53 and side, outer ring precompressed nut 154.Second bearing 51, the 3rd bearing 52 and distance piece 53 form one group of bearing 56.In addition, main shaft part 205 does not possess the inner ring side precompressed nut 155 in the second execution mode.
Shell 102 has: motor case portion 121, and it forms motor part 204; And main shaft shell portion 122, it forms main shaft part 205.In addition, the diameter in space inserted for main shaft axle portion 132 in main shaft shell portion 122 is less than the external diameter of output shaft 233 and is provided with the external diameter in motor drive shaft portion 231 of state of rotor 42.
Figure 13 is the exploded view of axle.As shown in Figure 12 and Figure 13, axle 203 has the first axle part 203A and the second axle part 203B.The first axle part 203A and the second axle part 203B are linked in the mode that can be separated on the axis direction of axle 203.That is, the first axle part 203A and the second axle part 203B independently divides body component.And then, linked by the first axle part 203A and the second axle part 203B, thus formed an axle 203.
The first axle part 203A comprises the motor drive shaft portion 231 in axle 203.The second axle part 203B comprises main shaft axle portion 232 in axle 203 and output shaft 233.That is, axle 203 and the second execution mode are similarly linked in the mode that can be separated between motor drive shaft portion 231 with main shaft axle portion 232.
Be formed with external thread part 234 at the terminal part of the load reverse side of the second axle part 203B and be positioned at the protuberance 235 of end side (load reverse side) of external thread part 234.External thread part 234 is the positions for linking with the first axle part 203A.It is cylindric that external thread part 234 is formed as centered by the central axis of the second axle part 203B, is formed with external screw thread at its outer peripheral face.Protuberance 235 is the guide portion for carrying out aligning to the first axle part 203A and the second axle part 203B.Protuberance 235 is less than external thread part 234 diameter, and it is cylindric that it is formed as centered by the central axis of the second axle part 203B.
Be formed with recess 236 at the terminal part of the load-side of the first axle part 203A and be positioned at the internal thread part 237 of end side (load-side) of recess 236.Recess 236 carries out the guide portion of the aligning of the first axle part 203A and the second axle part 203B for being embedded by protuberance 235.Recess 236 forms the columned space centered by the central axis of the first axle part 203A.The internal diameter of recess 236 is the size roughly the same with the external diameter of protuberance 235.Such as, the internal diameter of recess 236 can be identical with the external diameter of protuberance 235 or be slightly smaller than the size of external diameter of protuberance 235.Internal thread part 237 is the positions for linking with the second axle part 203B.Internal thread part 237 forms the columned space centered by the central axis of the first axle part 203A.The internal thread supplying the external thread part 234 of the second axle part 203B to be screwed into is formed at the inner peripheral surface of internal thread part 237.
Therefore, by being embedded in recess 236 by protuberance 235, thus the first axle part 3A and the second axle part 3B is by aligning.In addition, be fitted together to by screw thread external thread part 234 is screwed in internal thread part 237 and make the first axle part 203A and the second axle part 203B be joined into one.
External thread part 234, protuberance 235, recess 236 and internal thread part 237 is following size: when being linked up by the first axle part 203A and the second axle part 203B, on the axis direction of axle 203, and the end of the load-side of the first axle part 203A arrives inner ring 52B.And then, the pre-splenium 238 supporting inner ring 52B from load reverse side is formed at the terminal part of the load-side of the first axle part 203A.Pre-splenium 238 works as precompressed nut.That is, pre-splenium 238 extends (large footpath) in the end of the load-side of the first axle part 203A outside the radial direction of the first axle part 203A.By being screwed in internal thread part 237 by external thread part 234, thus pre-splenium 238 is fixed on set position.Further, abutted with inner ring 52B from load reverse side by pre-splenium 238, thus the position of the load reverse side of inner ring 52B is fixed.
The inner ring support portion 239 supporting inner ring 51B from load-side is formed in main shaft axle portion 232.Work as precompressed nut in inner ring support portion 239.That is, the outer peripheral face of inner ring support portion 239 in the end of the load-side of main shaft part 205 from main shaft axle portion 232 extends outside the radial direction in main shaft axle portion 232.And then, abutted with inner ring 51B from load-side by inner ring support portion 239, thus the position of the load-side of inner ring 51B is fixed.
Output shaft 233 is given prominence to from shell 102.The large footpath of output shaft 233, can be connected with not shown fixture etc.Output shaft 233 has the diameter larger than the diameter in the space for the insertion of main shaft axle portion 232 in shell 102.That is, the external diameter of output shaft 233 is at least cannot through the size in shell 102 in main shaft part 205.
Below, be also described with reference to the assembly method of Figure 14 to Figure 17 to electric rotating machine 201.Figure 14 to Figure 17 is the figure for being described the assembly method of electric rotating machine.
First, as shown in figure 14, rotor 42 is fixed on the motor drive shaft portion 231 (rotor fixed work order) of the first axle part 203A.Further, in this rotor fixed work order, by adjusting the installation site etc. of rotor 42, thus the balanced adjustment in motor drive shaft portion 231 is carried out.
In addition, except rotor fixed work order, main shaft part 205 (main shaft part assembly process) is assembled as illustrated in fig. 15.In addition, rotor fixed work order and main shaft part assembly process both first can carry out arbitrary operation, also can carry out simultaneously.In main shaft part assembly process, first, the second bearing 51, the 3rd bearing 52 and distance piece 53 are installed on main shaft shell portion 122.Then, side, outer ring precompressed nut 154 be screwed into the inner peripheral surface in main shaft shell portion 122 and be fixed on set position.Then, the second axle part 203B is inserted in main shaft shell portion 122 from load-side.And then, main shaft axle portion 232 is inserted into the inner side of inner ring 51B, inner ring side distance piece 53B and inner ring 52B.And then, in this main shaft part assembly process, by adjusting the installation site of the second bearing 51, the 3rd bearing 52 and distance piece 53, the amount of screwing etc. of side, outer ring precompressed nut 154, thus carry out the balanced adjustment in main shaft axle portion 232.Thus, main shaft part assembly process terminates.
After main shaft part assembly process terminates, then, as shown in figure 16, the first axle part 203A and the second axle part 203B is linked up (axle link process).In axle link process, first, external thread part 234 is screwed in internal thread part 237, and protuberance 235 is embedded in recess 236.Thus, the aligning of the first axle part 203A and the second axle part 203B and the link of the first axle part 203A and the second axle part 203B is carried out.Now, by being screwed in internal thread part 237 by external thread part 234, thus pre-splenium 238 is fixed in the position of regulation.Thus, predetermined precompressed is applied to whole bearing 56.Thus, axle link process terminates.
After axle link process terminates, then, as shown in figure 17, the motor part assembly process same with the second execution mode is carried out.
After motor part assembly process terminates, then, as shown in figure 12, the transducer installation procedure same with the second execution mode is carried out.
Like this, in the electric rotating machine 201 of present embodiment, the first axle part 203A has the function of inner ring side precompressed nut.Therefore, it is possible to the increase of suppression component quantity and improve the balance quality of axle 203.
In addition, the first axle part 203A and the second axle part 203B is fitted together to by screw thread and is linked.Therefore, by making the first axle part 203A relative to the second axle part 203B along rotating around direction of principal axis, thus the first axle part 203A can be made to move to load-side.Thus, by being linked up by the first axle part 203A and the second axle part 203B, thus making the pre-splenium 238 worked as precompressed nut be fixed on the position of regulation, predetermined precompressed can be applied to whole bearing 56.
In addition, by having the guide portion for carrying out aligning to the first axle part 203A and the second axle part 203B, thus easily aligning can be carried out to the first axle part 203A and the second axle part 203B.In this case, by utilizing protuberance 235 and recess 236 to form guide portion, thus guide portion can be formed simply.
Above embodiments of the present invention are illustrated, but the invention is not restricted to above-mentioned execution mode.
Such as, in the above-described embodiment, using axle as being divided into the first axle part and these two parts of the second axle part are illustrated, but more than three parts can be also divided into.In this case, such as motor drive shaft portion, main shaft axle portion and output shaft can be divided into.
In addition, the first to the 3rd execution mode can also suitably be combined.Such as, also can the first axle part by the first axle part in the first and second execution modes in and the 3rd execution mode chimeric with the conical surface of the second axle part be chimeric with the screw thread of the second axle part exchanges each other.
Claims (8)
1. an electric rotating machine, this electric rotating machine possesses:
Motor part, it makes setting axle in the enclosure along rotating around direction of principal axis; And
Main shaft part, above-mentioned axle supports to along rotatable around direction of principal axis by it,
Above-mentioned axle has the first axle part and the second axle part that link up in the mode that can be separated in the axial direction.
2. electric rotating machine according to claim 1, wherein,
Said motor portion and above-mentioned main shaft part along the axially-aligned of above-mentioned axle,
Above-mentioned axle has:
Motor drive shaft portion, it forms said motor portion;
Main shaft axle portion, it forms above-mentioned main shaft part; With
Output shaft, it extends from above-mentioned main shaft axle portion to the opposition side in above-mentioned motor drive shaft portion,
Above-mentioned the first axle part comprises said motor axle portion and above-mentioned main shaft axle portion,
Above-mentioned the second axle part comprises above-mentioned output shaft.
3. electric rotating machine according to claim 1, wherein,
Said motor portion and above-mentioned main shaft part along the axially-aligned of above-mentioned axle,
Above-mentioned axle has:
Motor drive shaft portion, it forms said motor portion;
Main shaft axle portion, it forms above-mentioned main shaft part; With
Output shaft, it extends from above-mentioned main shaft part to the opposition side of above-mentioned motor part,
Above-mentioned the first axle part comprises said motor axle portion,
Above-mentioned the second axle part comprises above-mentioned main shaft axle portion and above-mentioned output shaft.
4. the electric rotating machine according to Claims 2 or 3, wherein,
Above-mentioned the first axle part and above-mentioned the second axle part are fitted together to by the conical surface and are linked.
5. electric rotating machine according to claim 3, wherein,
Above-mentioned main shaft part has bearing, and above-mentioned bearing comprises: outer ring, and it is installed in above-mentioned shell; And inner ring, it is installed in above-mentioned main shaft axle portion,
Be formed with pre-splenium at above-mentioned the first axle part by the terminal part of above-mentioned the second axle part side, above-mentioned pre-splenium is by fastening for above-mentioned inner ring and apply precompressed to above-mentioned bearing.
6. electric rotating machine according to claim 5, wherein,
Above-mentioned the first axle part and above-mentioned the second axle part are fitted together to by screw thread and are linked.
7. the electric rotating machine according to claim 5 or 6, wherein,
Above-mentioned axle has guide portion, and guide sections is used for carrying out aligning to above-mentioned the first axle part and above-mentioned the second axle part.
8. electric rotating machine according to claim 7, wherein,
Guide sections has:
Protuberance, it is arranged on the terminal part by above-mentioned the first axle part side of above-mentioned the second axle part; With
Recess, it is arranged on the terminal part by above-mentioned the second axle part side of above-mentioned the first axle part and embeds for raised part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014189840A JP6405823B2 (en) | 2014-09-18 | 2014-09-18 | Rotating electric machine |
| JP2014-189840 | 2014-09-18 |
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|---|---|
| CN105449917A true CN105449917A (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510586384.4A Pending CN105449917A (en) | 2014-09-18 | 2015-09-15 | Rotary motor |
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| JP (1) | JP6405823B2 (en) |
| CN (1) | CN105449917A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111937277A (en) * | 2018-03-29 | 2020-11-13 | 日本电产株式会社 | Motor with a stator having a stator core |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020102939A (en) * | 2018-12-21 | 2020-07-02 | 日本電産株式会社 | Actuator |
| KR102191856B1 (en) * | 2019-08-22 | 2020-12-16 | 우림기계(주) | A preload device for a cycloidal reducer |
| CN116667593B (en) * | 2023-04-18 | 2024-01-30 | 浙江德欧电气技术股份有限公司 | Servo motor for precise cutting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736014A (en) * | 2002-10-31 | 2006-02-15 | 日本精工株式会社 | Electric power steering device |
| JP2012016201A (en) * | 2010-07-02 | 2012-01-19 | Mitsuba Corp | Motor and joint member for motor |
| JP2013009519A (en) * | 2011-06-24 | 2013-01-10 | Mitsubishi Electric Corp | Rotary electric machine |
| WO2014133119A1 (en) * | 2013-02-28 | 2014-09-04 | 日本電産サンキョー株式会社 | Motor device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58149072U (en) * | 1982-03-26 | 1983-10-06 | 本田技研工業株式会社 | engine generator |
| JPH0731099A (en) * | 1993-07-05 | 1995-01-31 | Fuji Electric Co Ltd | Electrically-driven gear with motor shaft made of composite material |
| JPH11313460A (en) * | 1998-04-27 | 1999-11-09 | Erc:Kk | Electric motor |
| JP3322226B2 (en) * | 1998-12-02 | 2002-09-09 | 村田機械株式会社 | Twisting unit |
| JP2006064127A (en) * | 2004-08-30 | 2006-03-09 | Ntn Corp | Preload adjusted bearing device |
| JP2007146936A (en) * | 2005-11-25 | 2007-06-14 | Ntn Corp | Rolling bearing applied with pre-load |
| US8133143B2 (en) * | 2008-06-16 | 2012-03-13 | Fairfield Manufacturing Company, Inc. | Gear reducer electric motor assembly with internal brake |
| JP5564963B2 (en) * | 2009-02-19 | 2014-08-06 | 日本精工株式会社 | Bearing device and spindle device of machine tool |
| JP5482311B2 (en) * | 2010-03-09 | 2014-05-07 | シンフォニアテクノロジー株式会社 | Rotating device |
-
2014
- 2014-09-18 JP JP2014189840A patent/JP6405823B2/en active Active
-
2015
- 2015-09-15 CN CN201510586384.4A patent/CN105449917A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736014A (en) * | 2002-10-31 | 2006-02-15 | 日本精工株式会社 | Electric power steering device |
| JP2012016201A (en) * | 2010-07-02 | 2012-01-19 | Mitsuba Corp | Motor and joint member for motor |
| JP2013009519A (en) * | 2011-06-24 | 2013-01-10 | Mitsubishi Electric Corp | Rotary electric machine |
| WO2014133119A1 (en) * | 2013-02-28 | 2014-09-04 | 日本電産サンキョー株式会社 | Motor device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111937277A (en) * | 2018-03-29 | 2020-11-13 | 日本电产株式会社 | Motor with a stator having a stator core |
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| Publication number | Publication date |
|---|---|
| JP2016063627A (en) | 2016-04-25 |
| JP6405823B2 (en) | 2018-10-17 |
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