JP4455151B2 - Elevator hoisting machine - Google Patents

Description

  The present invention relates to a hoisting machine used for an elevator, and more particularly to an elevator hoisting machine having a structure that can be easily assembled.

  A conventional hoisting machine will be described with reference to FIGS. FIG. 21 is a schematic view seen from the front of the hoisting machine, and FIG. 22 is an upper view and a partially enlarged view of the hoisting machine. In the prior art, a drive unit (above bed 1) is arranged on the upper surface of a bed 100 installed in an installation system to constitute a hoisting machine. The shaft 70 is fitted on the inner periphery of the bearings 500 and 600 housed in the stands 200 and 300, and is supported so as to be rotatable. A sheave 80 is fitted to the shaft 70 between the bearings 500 and 600. A disk 90 is attached to the sheave 80 at the end located on the stand 200 and the bearing 500 side. A brake 1000 is disposed so as to face the disk 90, and the brake 1000 is attached to a seat 200 </ b> A provided on the stand 200.

  The rotor 110 is disposed on the side of the stand 300 and the anti- sheave 80 of the bearing 60, and the inner periphery thereof is fitted to the shaft 70. With this configuration, the sheave 80, the disk 90, and the rotor 110 are supported by the bearings 500 and 600 via the shaft 70 and can rotate. The stator 120 is configured by winding a stator winding 140 around a stator core 130 made of an electromagnetic steel plate and fitting a stator frame 150 on the outer periphery.

  The outer circumferential surface of the rotor 110 is opposed to the inner circumferential surface of the stator core 130, and a gap 160 is formed so as to maintain a predetermined gap length. The end of the stator frame 150 is attached to a seat 300 </ b> A provided on the stand 300. The gap length of the gap 160 is adjusted in the horizontal direction and the vertical direction, and is adjusted so as to be balanced in the circumferential direction. As an example, a horizontal adjustment method will be described with reference to an enlarged view of FIG.

  A push bolt 180 is attached to a pedestal 170 provided in the bed 100, and the stand 300 can be pushed. The pedestal 170 and the push bolt 180 are disposed on both the left and right sides of the stand 300. In such a configuration, the left and right gaps 160 in the horizontal direction, that is, the gap lengths δ1 and δ2 are measured. By making δ1 and δ2 the same, the gap 160 is balanced in the horizontal direction.

In such an adjustment method, by tightening the push bolt 180 having a larger value of δ1 or δ2, the stand 300 is pushed, and accordingly the rotor 110 moves, and δ1 and δ2 can be adjusted. Further, the adjustment in the vertical direction is adjusted by placing an adjustment plate between the bed 100 and the stands 200 and 300 (not shown). After adjusting the gap 160 in this way, a knock hole is formed in the stand 300 and the bed 100, and the knock pin 190 is attached to complete the gap adjustment work (see, for example, Patent Document 1).
Japanese Patent Application Laid-Open No. 9-142761.

  However, such a configuration has the following problems.

(1) Electromagnetic vibration and noise due to the unbalance of the gap length δ The magnetic flux generated in the gap described above includes a fundamental wave that generates torque and other harmonics. One of the harmonics is an eccentric high-frequency wave, which is classified as static and dynamic. These magnetic fluxes act as a magnetic attractive force between the stator core and the rotor core, and deform the stator core into a polygon or bend and deform the shaft to generate vibration. If this vibration is below the audible range, it becomes electromagnetic vibration, and within the audible range, it becomes electromagnetic noise. The vibration caused by the combination with the fundamental wave or the static eccentric harmonic is caused by the mechanical imbalance of the gap length δ due to the roundness failure (center misalignment) of the stator and the rotor. The vibration caused by the combination with the dynamic eccentric harmonic is caused by the magnetic flux distribution imbalance in the air gap due to the swing of the rotor (shaft bending or the like). Therefore, the unbalance of the gap length δ before or during operation of the hoisting machine causes vibration and noise.

  Furthermore, in the prior art, the stand is disposed on the stand. For example, there is no horizontal support system other than the upper surface of the stand. In addition, since the parts related to the stator and the rotor are composed of three parts, that is, a bed and two stands, errors in parts are integrated, and the overall error increases. Accordingly, errors in assembly are likely to occur.

(2) Decrease in manufacturing efficiency related to adjustment of gap length δ With regard to the measurement and adjustment of the gap described above, a large amount of assembly time is required even for an expert, and a special jig or the like may be required for assembly adjustment. It was. Additional processing related to an increase in the number of parts by positioning parts after assembly and knock holes was necessary. Even in maintenance, when the stand 3 is replaced, readjustment or reworking is necessary. Therefore, in order to stabilize the quality, low manufacturing efficiency such as an increase in the manufacturing process, manufacture and management of jigs and tools, and limitation of workers for increasing the number of parts are problems.

(3) Deterioration of electrical characteristics and increase in size As countermeasures associated with (1) and (2) described above, enlarging the air gap increases the excitation current, resulting in deterioration of characteristics such as power factor deterioration and increased power consumption. I will. In addition, in order to obtain the capacity required for the applied equipment, it is necessary to increase the size of the stator and the associated rotor, which is a factor in increasing the size of the hoisting machine. When the stator (= rotor) is increased in size, the cantilever load due to its own weight increases and the whirling vibration increases. As a result, characteristic deterioration such as deterioration in ride comfort, component life deterioration due to vibration, and shortening of life are caused. In addition, the suppression of vibrations causes an increase in the number of components and a complicated configuration, such as an increase in the size of the entire apparatus accompanying an increase in the rigidity of the installation system and the use of a plurality of anti-vibration rubbers in the anti-vibration system.

(4) Vibration due to axial misalignment, short bearing life When an unbalanced air gap occurs, in other words, eccentricity occurs between the shaft centers of the stand. In this case, a swinging phenomenon of the entire rotor occurs. When the swaying phenomenon of the rotor occurs, the rotation of the magnetic attraction force due to the outer sway of the rotor, the centrifugal force due to the rotational imbalance, the rotational force due to the shaft sway, etc. are generated. As a result, vibration was increased and the bearings and hoisting machines were short-lived. As an example of vibration, as shown in the following equation, the balance is deteriorated.

Correction surface eccentricity ε = mr / M
m: Unbalance amount
r: Unbalance radius
M: Good balance of rotor weight G = εω / 1000
ω: Angular velocity As shown in the above equation, when the amount of unbalance increases, the value of good balance increases, resulting in an increase in vibration. In addition, the relationship between the creep and fretting phenomena, which is one of the factors contributing to the short life of the bearing, is that the rotational force, that is, the "rotational load" and the force that the bearing part tries to stop, ie, the "static load", rotates. Occurs when load> banding load. Therefore, when the shaft center mismatch occurs, the life of the hoisting machine is shortened with the shortening of the life of the bearing.

(5) Electromagnetic noise and electromagnetic vibration due to resonance Recently, needs for space saving of elevators are increasing for effective use of land. In order to save space in the machine room, it is necessary to reduce the size and thickness of the hoist, but one of the technical problems is to reduce electromagnetic noise and electromagnetic vibration. Electromagnetic noise and vibration are generated by exciting the stator frame that fixes the stator and the stand and bed that are the hoisting machine housing by the electromagnetic excitation force that is the repetition of the attractive force and repulsive force generated in the air gap. appear. The cause is that the frequency of the electromagnetic excitation force and the frequency of the stator are equal to or close to the natural frequency of the stator frame, the stand and the bed which are the hoisting machine casing, in addition to the aforementioned air gap imbalance. In this case, electromagnetic noise and electromagnetic vibration are generated and increased due to the resonance phenomenon.

  In addition, as a countermeasure against the vibration of the stator described in (3) above, a leg is provided on the stator frame so that the stator is received in the vertical direction, and is fixed directly to the stand. Further, there is a method that allows the stator to be received in the vertical direction from the hoisting machine support system by disposing the hoisting machine support system below the hoisting machine. When thinning, it is conceivable to use the legs of the stator frame as a support system, but both suspension load and electromagnetic excitation force are applied, so rigidity such as thickening of the stator frame is required. . As a result, there are problems such as an adverse effect on the vibration isolator due to an increase in the mass of the stator portion and a deterioration of the manufacturing method due to the deforming of the stator.

(6) Avoidance of Resonance Phenomena There are many vibration modes of the stator and the stator frame, and there are many time order components of the electromagnetic excitation. Furthermore, the elevator has many traveling speed specifications by application for each property. Therefore, it is difficult to avoid the place where the vibration and noise increased after the prediction of these frequencies and installation of the hoist, and the vibration resonance point. As a result, the performance of the whole elevator system deteriorated due to vibration and noise. There are issues of environmental deterioration and shortening of the life of the hoist. As countermeasures, it is also necessary to increase the types of hoisting machines designed and manufactured for each application, to increase the types of incidental equipment and jigs, manufacturing costs and management costs.

(7) Shortening the life by increasing the shaft voltage A magnetic circuit is formed between the two bearings from the stator and the rotor during operation of the hoisting machine. In this case, there is a stage where a shaft voltage and a shaft current are generated and a spark is generated in the bearing. When such an event occurs, the oil film in the bearing runs out and peels off, which causes the life of the hoist to be shortened due to a bearing failure.

  The present invention has been made under the circumstances described above, and the object thereof is to easily align the center of the stator and the rotor without any assembly adjustment, and to suppress vibration and noise due to electromagnetic vibration. Furthermore, the present invention is to provide an elevator hoisting machine that can improve characteristics, reduce the size, and extend the service life.

  An elevator hoist according to an embodiment of the present invention is a frame that is integrally configured to surround a sheave and a disk that are arranged coaxially with a predetermined shaft, and of the shaft, A frame is configured so as to open only a part in the longitudinal direction, and a first bearing of the shaft is internally installed in a predetermined joint of two joints perpendicular to the shaft of the frame. A bracket that houses the second bearing of the shaft is adjacently fixed to the opposite side of the predetermined joint, and a stator core is provided on the opposite side of the bracket from the frame side. The fixed stator frame is fixed adjacently.

  That is, a frame that is integrally configured to surround a sheave and a disk that are coaxially arranged with a predetermined axis, and the frame is opened so that only a part of the frame in the longitudinal direction is opened. The first bearing of the shaft is built in a predetermined joint of the two joints perpendicular to the shaft of the frame, and the second shaft of the shaft is disposed on the opposite side of the predetermined joint. A bracket that houses the bearing is fixed adjacently, and a stator frame that includes a stator core is fixed adjacently on the opposite side of the bracket from the frame side.

  For this reason, the center of the stator and the rotor can be easily aligned without adjusting the assembly, and vibration and noise due to electromagnetic vibration can be suppressed by preventing the gap from being unbalanced. In addition, manufacturing efficiency, the number of parts can be reduced, and management can be simplified by eliminating assembly adjustments, improving the characteristics and downsizing of the hoisting machine, and extending the service life.

  By using the present invention, the center of the stator and the rotor can be easily aligned without adjusting the assembly, vibration and noise due to electromagnetic vibration can be suppressed, and characteristics can be improved, miniaturized, and lengthened. It is possible to provide an elevator hoisting machine that can achieve a long life.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a schematic diagram viewed from the front of an elevator hoist (hereinafter referred to as a hoist), and FIG. 2 is a schematic diagram viewed from the front including the upper section of the hoist.

  The hoisting machine of the present invention is a frame 20 that is integrally configured to surround a sheave 8 and a disk 9 that are arranged coaxially with a predetermined shaft 7, and the longitudinal direction of the shaft 7 of the frame 20. The frame 20 is configured so as to open only a part of the shaft 20, and the bearing of the shaft 7 that is a predetermined joint portion of the housing 20 C that is two joint portions perpendicular to the shaft 7 of the frame 20. 5, a bracket 21 that houses the bearing 6 of the shaft 7 is adjacently fixed to the opposite side, and a stator core 13 is provided on the opposite side of the bracket 21 from the frame 20 side. The frame 22 is configured to be fixed adjacently. Furthermore, the integrally configured frame 20 is mounted with spigot portions 20a, 21a, 21B, and 22B in which the frame 20, the stator frame 22, and the bracket 21 are processed on the same center.

  That is, the hoisting machine of the present invention configures the frame 20 so as to surround the sheave 8 and the disk 9. The frame 20 is provided with legs 20A and 20B at the lower part and outside the both ends of the sheave 8, respectively. The legs 20A and 20B are installed in the installation system by these legs 20A and 20B. The brake 10 is attached to a leg 20 </ b> A provided on the frame 20.

  A housing 20 </ b> C is provided at the center of the shaft in the frame 20, and the outer periphery of the bearing 5 is internally provided on the inner periphery thereof. A bracket 21 is attached to the opposite side of the bearing 5 of the frame 20. The bracket 21 is provided with a housing 21C at the center of the shaft, and a bearing 6 is provided on the inner periphery thereof.

  In such a configuration, the sheave 8 and the disk 9 are disposed between the bearings 5 and 6 to support the rotating system including the rotor 11 of the hoisting machine. The mounting portion of the frame 20 and the bracket 21 is provided with an inlay portion processed by simultaneous processing so as to be concentric with the respective housings 20C and 21C. That is, the frame 20 is provided with an inlay portion 20 a and the bracket 21 is provided with an inlay portion 21 a. The frame 20 and the bracket 21 are mounted by fitting the spigot portions 20a and 21a, respectively. By the above, the bearings 5 and 6 can be arrange | positioned concentrically.

  An inlay portion 21b is provided on the back side of the inlay portion 21a of the bracket 21 so as to be concentric. The outer periphery of the stator 12 is attached to the inner periphery of the stator frame 22, and there is an inlay portion 22 b provided by simultaneous processing so as to be concentric with the attachment portion of the stator 12. The stator frame 22 and the stator 12 are attached to the bracket 21 by fitting the spigot portions 21b and 22b, respectively. As described above, the stator 12 mounted via the spigot portions 21a and 21b of the bracket 21 and the stator frame 22 can be arranged concentrically.

  With the above configuration, the spigot portion provided for each part of the frame 20, the bracket 21, and the stator frame 22, the bearings 5 and 6 attached to the respective parts, and the stator 12 are concentric. It will be arranged.

  A sheave 8 and a rotor 11 are fitted on the shaft 7 and supported by bearings 5 and 6. The sheave 8 and the rotor 11 are rotatable.

  Next, processing examples of each part will be shown, and the concentricity of each part will be described.

  The frame 20 processes the housing 20C with reference to the inlay portion 20a. The bracket 21 processes the housing 21C with the spigot portion 21a as a reference, and further processes the spigot portion 21b with the housing 21C as a reference. The shaft 7 simultaneously processes locations where the inner peripheral portions of the sheave 8, the bearing 5, the bearing 6, and the rotor 11 are mounted.

  Thus, by using the first embodiment of the present invention, the sheave 8, the stator 12, and the rotor 11 can be assembled concentrically by assembling the parts processed concentrically. It becomes.

  Furthermore, since the stator 12 and the rotor 11 can be configured concentrically, the air gap 16 is kept in equilibrium. As a result, electromagnetic vibration and electromagnetic noise can be reduced. Further, in manufacturing, adjustment work, positioning parts, additional processing related to parts, etc. that have occurred during assembly can be omitted, and performance and quality can be improved and manufacturing efficiency can be improved. Further, since the balance of the gap 16 can be assembled with high accuracy, the gap 16 can be generally reduced, and the power factor can be improved, the characteristics can be improved, and the power consumption can be reduced, and the hoisting machine can be downsized with the same capacity. . Further, along with the downsizing of the hoisting machine, the installation system can be reduced in size and simplified, and the entire apparatus can be reduced in size and weight. Further, when the stator 12 and the rotor 11 are reduced in size and weight, cantilever load and swing vibration can be suppressed. The concentric accuracy of the shaft center can also be improved, and the life of each part including the bearing can be extended. As a result, the life of the hoisting machine can be extended.

  And electromagnetic vibration and electromagnetic noise can be reduced. Further, in manufacturing, adjustment work, positioning parts, additional processing related to parts, etc. that have occurred during assembly can be omitted, and performance and quality can be improved and manufacturing efficiency can be improved. In addition, since the balance of the air gap can be assembled with high accuracy, the air gap can be set small, and the power factor can be improved, the characteristics can be improved, and the power consumption can be reduced. Along with the miniaturization of the hoisting machine, the installation system can be reduced in size and simplified, and the entire apparatus can be reduced in size and weight. Furthermore, cantilever load and whirling vibration can be suppressed by reducing the size and weight of the stator and rotor. In addition, the concentric accuracy of the shaft center can be improved, and the life of each part including the bearing can be increased. As a result, the life of the hoisting machine can be extended.

(Second Embodiment)
Hereinafter, a second embodiment of the present invention will be described with reference to FIG.

  Note that parts similar to those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be given above.

  FIG. 3 is a schematic view seen from the front including the upper section of the hoisting machine. The difference from the first embodiment is that the stator frame is eliminated and the end plate 23 is fixed to the end surface of the stator 12 and on the bracket 21 side by, for example, welding.

  The end plate 23 of the hoisting machine is provided with an inlay portion 23b so as to face the inlay portion 21b of the bracket 21 described above. Further, the inner periphery of the stator 12 and the spigot part 23b of the end plate 23 are processed so as to be concentric. When such a configuration is adopted, the same operation and effect as in the first embodiment can be achieved, and furthermore, the weight of the entire stator can be reduced. Further, since the heat can be radiated directly from the outer periphery of the stator 12 to the outside air, the cooling performance can be improved and the size can be reduced. Further, since there is no stator frame, the connection portion with the power cable can be changed freely only by changing the assembly position. Furthermore, the thickness of the stator 12 can be set freely. As a result, even if the same material is used, various hoisting machines can be manufactured according to application. Further, as described above, by changing the thickness of the stator 12, it is possible to detune the resonance frequency from the frequency of the electromagnetic excitation force, the natural frequency of the hoisting machine casing, etc. it can.

(Third embodiment)
Hereinafter, a third embodiment of the present invention will be described with reference to FIG.

  Note that parts similar to those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be given above.

  FIG. 4 is a schematic diagram showing in detail the inlay portion 20a of the frame 20 of the third embodiment. The difference from the first embodiment and the second embodiment is that the notched portion 20 c is provided in the inlay portion 20 a of the frame 20. The height (H in the figure) of the notch 20c is made larger than the thickness of the disk 9, and the width (W in the figure) is made larger than the outer diameter of the disk 9. In this way, the disk 9 is inserted from the notch 20c during assembly.

  With this configuration, the diameter of the spigot part 20a can be set smaller than the outer diameter of the disk 9. As a result, the frame 20 can be reduced in size and weight, and the stator 12, that is, the drive unit can be set to a small diameter. Can be enlarged. Furthermore, management can be simplified and investment can be reduced by sharing parts.

(Fourth embodiment)
Hereinafter, a fourth embodiment of the present invention will be described with reference to FIG.

  Note that parts similar to those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be given above.

  FIG. 5 is a schematic view showing a side surface on the brake mounting side of the hoisting machine. First, the brake 10 of the hoisting machine is arranged as shown in FIG.

  That is, two brakes 10 that sandwich the disk 9 and decelerate the rotation of the disk 9 by frictional resistance with the disk 9 are provided, and the brake 10 is narrower than a position facing the side surface opposite to the opening of the frame 20. Arrange them at intervals (so that they are located diagonally).

  By setting it as such a structure, the width direction dimension of a winding machine can be shortened. Furthermore, since the space between the brake mounting seats can be set small, the mounting seats can be used for a plurality of brakes.

(Fifth embodiment)
Hereinafter, a fifth embodiment of the present invention will be described with reference to FIGS.

  Note that parts similar to those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be given above.

FIG. 6 is a schematic view seen from the front including the upper cross section of the hoist, and FIG. 7 is a vibration model. From the vibration model of FIG. 7, the natural frequency (f) is expressed by the following equation.

E: Young's modulus I: sectional moment of inertia W: mass Le: distance from the installation surface to the center of gravity Here, as shown in FIG. 6, grooves 24 a, 24 b, 24 c are provided in the frame 24. In order to change the natural frequency according to each application specification of the equipment for installing the hoisting machine, the weights 25a, 25b, and 25c are inserted into the grooves 24a, 24b, and 24c installed in the frame 24, respectively. This can be achieved by changing (W) or changing the distance from the installation surface to the center of gravity. Thus, it is possible to detune from the frequency caused by vibration without changing the external dimensions.

(Sixth embodiment)
Hereinafter, a sixth embodiment of the present invention will be described with reference to FIGS.

  Note that parts similar to those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be given above.

  FIG. 8 is a schematic view seen from the front including a partial cross section of the hoisting machine, and FIG. 9 is a schematic view seen from the side of the hoisting machine. The difference from the first embodiment is that a hole 26A is provided in the frame 26 as shown in FIGS.

  By providing the hole 26A, when the oil that has oozed from the bearing 5 during the operation of the hoisting machine travels through the sheave 8, it accumulates at the sheave 8 joint of the disk 9 and can be wiped from the hole 26A. Further, it is possible to prevent the oil from entering the disk 9, prevent the brake force from being lowered, and prevent environmental pollution due to the oil.

(Seventh embodiment)
Hereinafter, a seventh embodiment of the present invention will be described with reference to FIG.

  Note that parts similar to those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be given above.

  FIG. 10 is a schematic view seen from the front including the upper section of the hoisting machine. As shown in FIG. 10, the inner diameter φd1 of the rotor 11, the inner diameter φd2 of the bearing 6, the inner diameter φd3 of the sheave 8, and the inner diameter φd4 of the bearing 5 are either increased or decreased in this order. As a result, assembly from one direction becomes possible, and automatic assembly becomes possible.

φd1 <φd2 <φd3 <φd4
Or φd1>φd2>φd3> φd4
(Eighth embodiment)
The eighth embodiment of the present invention will be described below with reference to FIGS.

  Note that parts similar to those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be given above.

  FIG. 11 is a schematic view seen from the front including the upper section of the hoisting machine. The difference from the first embodiment is that a fixing tool 27 for preventing the rotor 11 from being detached is installed as shown in FIG. Furthermore, the shaft 7 is provided with a screw hole 7a (not shown).

  Next, the usage form of such a hoist is shown below. FIG. 12 is a schematic view showing a state in which a single test coupling 28 of the hoisting machine is attached, and FIG. 13 is a schematic view showing a state in which a gear 29 of a manual reduction gear is attached in an emergency. is there.

  As described above, by providing the screw hole 7a (not shown) in the shaft 7, it is possible to attach an accessory for each application without changing the dimensions of the hoisting machine. Further, by changing only the fixture 27, the mounting diameter D can be changed, and the number of component types and the additional processing and component management associated therewith can be reduced.

(Ninth embodiment)
The ninth embodiment of the present invention will be described below with reference to FIG.

  Note that parts similar to those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be given above.

  FIG. 14 is a schematic view seen from the front including a partial cross section of the hoisting machine.

  The difference from the first embodiment is that the frame 20 is divided into a frame 30 and a bracket 31 as shown in FIG.

  Even with this configuration, the same effects as those of the first embodiment can be obtained. Furthermore, by combining the frame 30 and the bracket 31 according to the application specifications of the elevator to be installed, it becomes possible to cope with a wider range of specifications. For example, several types of brackets 31 can be set for each bearing size depending on the suspension load.

(10th Embodiment)
Hereinafter, a tenth embodiment of the present invention will be described with reference to FIG.

  Note that portions similar to those in the ninth embodiment are denoted by the same reference numerals, and detailed description thereof is given above.

  FIG. 15 is a schematic view seen from the front including a partial cross section of the hoisting machine.

  The difference from the ninth embodiment is that the frame 32 is divided from the housing 33 and the bracket 34 is divided from the housing 35 as shown in FIG.

  By adopting such a configuration, it is possible to easily change the assembly direction even when the same parts are used for the lubricating oil injection and discharge positions of the bearings 5 and 6. Therefore, the layout of the machine room can be freed and the installation direction of the hoisting machine can be freed. As a result, the occupied area in the building can be reduced.

  Although not shown, the same effect as that of the tenth embodiment can be obtained by dividing only the frame 32 side or the bracket 34 side of the tenth embodiment. .

(Eleventh embodiment)
The eleventh embodiment of the present invention will be described below with reference to FIG.

  Note that portions similar to those in the ninth embodiment are denoted by the same reference numerals, and detailed description thereof is given above.

  FIG. 16 is a schematic view seen from the front including a partial cross section of the hoisting machine.

  The difference from the ninth embodiment is that the insulators 36 and 37 are arranged on the outer peripheral portions (lower portions) of the housings 33 and 35 as shown in FIG.

  By adopting such a configuration, the magnetic circuit can be shielded in the casing of the hoisting machine, and the generation of the shaft voltage can be prevented. As a result, bearing damage can be prevented, and the life of the hoisting machine can be extended.

  Although not shown, the same effect as that of the eleventh embodiment can be obtained by adopting a configuration in which an insulator is inserted only into either the frame 32 side or the bracket 34 side of the eleventh embodiment. Can be obtained.

(Twelfth embodiment)
The twelfth embodiment of the present invention will be described below with reference to FIG.

  Note that parts similar to those in the seventh embodiment are denoted by the same reference numerals, and detailed description thereof will be given above.

  FIG. 17 is a schematic view seen from the front including a partial cross section of the hoisting machine. A difference from the seventh embodiment is that, as shown in FIG. 17, an end plate 23 is fixed to the end face of the stator 12 and on the bracket 21 side by, for example, welding. Further, an insulator 38 is disposed between the end plate 23 and the bracket 21.

  With such a configuration, the magnetic circuit from the entire stator can be shut off, and the generation of the shaft voltage can be prevented. In addition, bearing damage can be prevented and the life of the hoisting machine can be extended.

(13th Embodiment)
The thirteenth embodiment of the present invention will be described below with reference to FIG.

  Note that parts similar to those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be given above.

  FIG. 18 is a schematic view seen from the front including a partial cross section of the hoisting machine.

  As shown in FIG. 18, the mounting legs 39 </ b> A are provided on the frame 39 as in the first embodiment. The difference from the first embodiment is that the other bracket 40 is provided with an installation leg 40A.

  By setting it as such a structure, the distance between installation leg 39A, 40A can be taken wide, and stability can be increased. Furthermore, it can support to an installation system under each bearing part which supports a rotor, and can suppress the vibration resulting from a rotating system.

(14th Embodiment)
The fourteenth embodiment of the present invention will be described below with reference to FIG.

  Note that portions similar to those in the thirteenth embodiment are denoted by the same reference numerals, and detailed description thereof is given above.

  FIG. 19 is a schematic view seen from the front including a partial cross section of the hoisting machine.

  As shown in FIG. 19, a mounting leg 39A is provided on the frame 39 as in the thirteenth embodiment. In addition, the difference from the thirteenth embodiment is that the stator frame 41 is provided with installation legs 41A.

  By adopting such a configuration, the distance between the installation legs 39A and 41A can be increased, and the stability is increased. Furthermore, since the electromagnetic vibration that causes the stator 12 to be an excitation source can be supported by the installation system, not only the stator but also the entire hoisting machine can be suppressed.

(Fifteenth embodiment)
The fifteenth embodiment of the present invention will be described below with reference to FIG.

  Note that portions similar to those in the fourteenth embodiment are denoted by the same reference numerals, and detailed description thereof is given above.

  FIG. 20 is a schematic view seen from the front including a partial cross section of the hoisting machine.

  As shown in FIG. 20, a mounting leg 39A is provided on the frame 39 as in the fourteenth embodiment. The difference from the fourteenth embodiment is that, on the other hand, the stator frame is abolished and installation legs 43 are provided on the stator core 42.

  By adopting such a configuration, it is possible to obtain the same effect as that of the fourteenth embodiment. Furthermore, the size and weight can be reduced by eliminating the stator frame.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

  As described above, according to the present invention, the related parts of the stator and the rotor are configured by the inlay fitting, so that the center of the stator and the rotor can be easily aligned without adjusting the assembly. Moreover, electromagnetic vibration, vibration due to rotation, and noise can be suppressed by preventing the air gap from being unbalanced. Therefore, the manufacturing efficiency, the number of parts can be reduced, and the management can be simplified due to the abolition of the assembly adjustment, and further, the characteristics of the hoisting machine can be improved, the size can be reduced, and the Nagano can be provided.

  Further, since the stator frame can be eliminated, the connection position with the power cable and the thickness of the stator can be set freely. As a result, even if the same material is used, various hoisting machines can be manufactured according to application. Furthermore, by changing the thickness of the stator and rotor, or by installing weights inside the frame, the frequency of electromagnetic excitation force and the resonance frequency such as the natural frequency of the hoisting machine housing can be detuned. Can do. In addition, the hoisting machine can be downsized by attaching a notch or brake for the brake disc to the frame at an angle. By providing a hole on the disk side of the frame, the oil component that oozes out from the bearing can be removed, and as a result, the oil component can be prevented from flowing out to the disk portion and the brake force can be prevented from lowering. Furthermore, by changing the inner diameters of the rotor, the bearing, and the sheave sequentially from one direction, one-way assembly can be performed and automatic assembly can be performed.

  Furthermore, by disposing a fixing tool at the end of the rotor, it is possible to attach a part for each application and simplify the part and its management. Further, by dividing the bearing housing portion, it is possible to expand specifications and prevent shaft voltage. The installation legs can be suppressed not only in the frame but also in the bracket or the stator portion, thereby suppressing vibrations in which the rotating system and the stator serve as the excitation source.

  As a result, we offer a hoisting machine that not only improves characteristics, but also reduces manufacturing costs by simplifying management, improving the environment by reducing vibration and noise, and extending the service life without requiring assembly adjustments. can do.

The schematic diagram seen from the front of the elevator hoist according to the first embodiment of the present invention. The schematic diagram seen from the front containing the upper cross section of the winding machine for elevators concerning 1st Embodiment of this invention. The schematic diagram seen from the front containing the upper cross section of the hoist for elevators concerning 2nd Embodiment of this invention The schematic diagram which showed the inlay part of the flame | frame of the elevator hoisting machine which concerns on 3rd Embodiment of this invention in detail. The schematic diagram which showed the side surface by the side of brake attachment of the hoisting machine for elevators concerning 4th Embodiment of this invention. The schematic diagram seen from the front containing the upper cross section of the hoist for elevators concerning 5th Embodiment of this invention. The schematic diagram which showed the vibration model of the elevator hoisting machine which concerns on 5th Embodiment of this invention. The schematic diagram seen from the front containing the partial cross section of the winding machine for elevators concerning 6th Embodiment of this invention. The schematic diagram seen from the side of the elevator hoisting machine which concerns on 6th Embodiment of this invention. The schematic diagram seen from the front containing the upper cross section of the winding machine for elevators concerning 7th Embodiment of this invention. The schematic diagram seen from the front containing the upper cross section of the winding machine for elevators concerning 8th Embodiment of this invention. The schematic diagram which showed the state which attached the test coupling of the single item of the elevator hoisting machine which concerns on 8th Embodiment of this invention. The schematic diagram which showed the state which attached the gearwheel of the reduction gear for manual rotation in the emergency of the winding machine for elevators concerning 8th Embodiment of this invention. The schematic diagram seen from the front containing the partial cross section of the winding machine for elevators concerning 9th Embodiment of this invention. The schematic diagram seen from the front containing the partial cross section of the winding machine for elevators concerning 10th Embodiment of this invention. The schematic diagram seen from the front containing the partial cross section of the winding machine for elevators concerning 11th Embodiment of this invention. The schematic diagram seen from the front containing the partial cross section of the winding machine for elevators concerning 12th Embodiment of this invention. The schematic diagram seen from the front containing the partial cross section of the winding machine for elevators concerning 13th Embodiment of this invention. The schematic diagram seen from the front containing the partial cross section of the winding machine for elevators concerning 14th Embodiment of this invention. The schematic diagram seen from the front containing the partial cross section of the winding machine for elevators concerning 15th Embodiment of this invention. The schematic diagram which showed the winding machine in a prior art. The schematic diagram which showed the winding machine in a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 ... Stand 5, 6 ... Bearing, 7 ... Shaft, 7a ... Hole, 8 ... Sheave, 9 ... Disc, 10 ... Brake, 11 ... Rotor, 12 ... Stator, 13 ... Stator iron core, 16 ... Air gap 20 ... Frame, 20C ... Housing, 20a, 21a ... Inlay part, 20A, 20B ... Leg

Claims (17)

A frame integrally configured to surround a sheave and a disk arranged coaxially with a predetermined axis, wherein the frame is configured to open only a part of the frame in the longitudinal direction of the axis And
A first bearing of the shaft is housed in a predetermined joint of two joints perpendicular to the shaft of the frame,
A bracket that houses the second bearing of the shaft is fixed adjacent to the side opposite to the predetermined joint, and a stator core is installed on the opposite side of the bracket from the frame side. An elevator hoist configured to fix a stator frame adjacently.   The elevator hoist according to claim 1, wherein when the frame is integrally formed, the frame, the stator frame, and the bracket are each mounted on an inlay portion processed on the same center. Machine. A frame integrally configured to surround a sheave and a disk arranged coaxially with a predetermined axis, wherein the frame is configured to open only a part of the frame in the longitudinal direction of the axis And
A first bearing of the shaft is housed in a predetermined joint of two joints perpendicular to the shaft of the frame,
A bracket that houses the second bearing of the shaft is adjacently fixed to the side opposite to the predetermined joint, and an end plate portion is adjacent to the side of the bracket opposite to the frame side. An elevator hoisting machine configured to fix a stator iron core adjacent to the end plate portion of the end plate portion opposite to the side on which the bracket is fixed. .   When the frame is integrally configured, the frame, the bracket, and the end plate portion are each mounted with an inlay portion processed on the same center, and the inner periphery of the stator core and the end plate portion The elevator hoisting machine according to claim 3, wherein the inlay portions are configured to be on the same center.   The elevator hoisting machine according to any one of claims 1 to 4, wherein an insulator is inserted into the spigot portion which is a joint location.   The elevator hoist according to claim 1 or 3, wherein the opening of the frame serves as a leg of the elevator hoist.   There are provided two brake parts that sandwich the brake disk and decelerate the rotation of the brake disk by frictional resistance with the brake disk, and the brake part is located at a position facing the side surface opposite to the opening of the frame. The elevator hoisting machine according to claim 1 or 3, wherein the elevator hoisting machine is arranged at a narrow interval.   The elevator hoist according to claim 1 or 3, wherein a groove or a hole is provided at a predetermined position of the frame, and a weight is placed inside the groove or hole.   The elevator hoisting machine according to claim 1 or 3, wherein a hole through which an oil component passes is provided at a predetermined position on a side surface in the longitudinal direction of the shaft of the frame. The shaft extends from the second bearing to the stator core, and two stator cores are provided in line symmetry with respect to the shaft, and the two stator cores are provided. In between, a rotor arranged on the shaft is provided,
The inner diameter of the rotor, the inner diameter of the second bearing, the inner diameter of the sheave, the inner diameter of the first bearing, and the inner diameter of the first bearing are set so as to increase in order. The elevator hoist according to claim 1 or 2.   3. A screw hole is provided at an end of the extended shaft, and the fixed wing for retaining the rotor is fixed by using the screw hole. The elevator hoisting machine described.   3. The elevator winding according to claim 1, wherein, when the frame is integrally formed, an inlay portion is used to divide the frame into a support system for the hoisting machine housing and a bearing bracket. Upper machine.   When the frame is configured integrally, a bearing housing is bonded between the frame and the first bearing and between the bracket and the second bearing using the spigot portion. The elevator hoisting machine according to claim 1 or 2.   When the bearing housing is configured using an inlay portion, the bearing housing is either between the frame and the first bearing or between the bracket and the second bearing. The elevator hoist according to 1 or 2.   The elevator hoisting machine according to claim 12, wherein one of the two leg portions as the support system is disposed at a lower portion of the bracket and the other is disposed at a lower portion of the frame.   The elevator hoisting machine according to claim 12, wherein one of the two leg portions as the support system is disposed at a lower portion of the stator frame, and the other is disposed at a lower portion of the frame. .   The elevator hoisting machine according to claim 12, wherein one of the two leg portions as the support system is disposed at a lower portion of the stator core, and the other is disposed at a lower portion of the frame. .

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