Power source mounting structure and air preheater speed reducer

Abstract

A power source mounting structure, comprising a first flange (3), a second flange (4), an electric motor (2), a magnetic coupling inner ring (5), a magnetic coupling outer ring (6) and a base (7), wherein the first flange is mounted outside a housing (11) of an output apparatus, one of the first flange and the second flange is provided with a positioning hole, the axial direction of the positioning hole is consistent with the axial direction of an input shaft (12) of the output apparatus, and the other of the first flange and the second flange is slidably fitted in the positioning hole; the electric motor comprises a connection bracket (21), the connection bracket is connected to the second flange, the axial direction of a rotary shaft of the electric motor is consistent with the axial direction of the positioning hole, one of the magnetic coupling inner ring and the magnetic coupling outer ring is coaxially connected to the input shaft of the output apparatus, and the other of the magnetic coupling inner ring and the magnetic coupling outer ring is coaxially connected to the rotary shaft; and the base is connected to the housing, and the second flange is slidably connected to the base in the axial direction of the rotary shaft. The power source mounting structure has the advantages of high efficiency in terms of maintenance and replacement of the electric motor. Further provided is an air preheater speed reducer having the power source mounting structure.

Description

Power source mounting structure and air preheater reducer Technical Field

[0001] This invention relates to the field of air preheater technology, specifically to a power source mounting structure and an air preheater reducer. Background Technology

[0002] The air preheater reducer is a multi-axis horizontal input and vertical single-axis output reducer. The purpose of setting up multi-axis input is to enable the auxiliary input motor to be started in the event of the main input motor burning out, so as to ensure that the air preheater reducer can operate without stopping by switching motors, thereby improving the operational safety performance of the air preheater reducer.

[0003] The auxiliary input shaft and auxiliary motor are typically connected via a wedge-type clutch. During air preheater reducer operation, the auxiliary motor is disengaged, preventing it from rotating and thus protecting it from wear. This also reduces the induced electromotive force and harmonic effects introduced by the auxiliary motor's rotation. However, because the wedge-type clutch inevitably experiences mechanical wear during prolonged disengagement, it is frequently damaged, making it a vulnerable part that is difficult to replace. Replacement requires stopping the preheater reducer, which ultimately reduces the operational safety of the air preheater reducer. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention propose a power source mounting structure that has the advantages of high efficiency in motor maintenance and replacement.

[0006] Embodiments of the present invention also propose an air preheater reducer.

[0007] The power source mounting structure of this invention is used for mounting on an output device. It includes a first flange, a second flange, a motor, an inner magnetic coupler ring, an outer magnetic coupler ring, and a base. The first flange is mounted outside the housing of the output device. One of the first flange and the second flange has a positioning hole, the axis of which is aligned with the axis of the input shaft of the output device. The other of the first flange and the second flange is slidably fitted within the positioning hole. The motor includes a connecting bracket connected to the second flange, and the axis of the motor's rotating shaft is aligned with the axis of the positioning hole. One of the inner magnetic coupler ring and the outer magnetic coupler ring is coaxially connected to the input shaft of the output device, and the other is coaxially connected to the rotating shaft. The base is connected to the housing, and the second flange is slidably connected to the base along the axis of the rotating shaft.

[0008] According to the power source mounting structure of this invention, after the base is connected to the housing of the output device, a second flange is slidable relative to the base along the axial direction of the input shaft of the output device. This facilitates the movement of the second flange and the motor mounted thereon closer to or further away from the output device, thereby achieving the engagement of the inner and outer magnetic couplers. After the inner magnetic coupler engages with the first flange, the second flange is inserted through positioning holes, ensuring the concentric positioning of the inner and outer magnetic coupler rings and guaranteeing a reliable connection between the motor shaft and the input shaft of the output device. By fixing the motor to the second flange only via a connecting bracket, when maintenance or replacement of the motor is required, only the second flange needs to be moved to separate the inner and outer magnetic coupler rings, and then the motor can be removed from the second flange. With the support of the base, the position of the second flange remains unchanged during motor removal. Therefore, after installing, maintaining, or replacing the motor, there is no need to readjust the positioning of the first and second flanges, effectively improving the efficiency of motor maintenance and replacement, and ensuring the operational safety of the output device.

[0009] In some embodiments, a sliding mechanism is mounted on the base, the sliding mechanism including a slider, the slider being slidably connected to the base along the axial direction of the rotating shaft, and the slider being connected to the second flange.

[0010] In some embodiments, the sliding mechanism further includes a lead screw, which is rotatably mounted on the base about its axis, the axial direction of the lead screw being consistent with the axial direction of the rotating shaft, and the slider having a threaded hole that engages with the external thread of the lead screw.

[0011] In some embodiments, the power source mounting structure further includes a handle connected to one end of the lead screw.

[0012] In some embodiments, the inner magnetic coupler has a first position that engages within the outer magnetic coupler and a second position that disengages from the outer magnetic coupler. The positioning hole is disposed on the second flange, and the outer peripheral surface of the first flange is provided with a limiting flange. When the inner magnetic coupler is in the first position, a portion of the first flange engages within the positioning hole, and the limiting flange abuts against the end face of the second flange facing the housing of the output device.

[0013] In some embodiments, when the inner ring of the magnetic couple is in the second position, a portion of the first flange slides within the positioning hole.

[0014] In some embodiments, the positioning hole is coaxial with the rotating shaft, the first flange has a mounting cavity with an opening facing the motor, and the outer ring of the magnetic couple is located within the mounting cavity.

[0015] In some embodiments, the first flange is provided with a plurality of positioning holes, which are arranged at intervals along the circumference of the inner ring of the magnetic couple, and the second flange is provided with a plurality of positioning posts, which correspond one-to-one with the positioning holes and are fitted into the positioning holes.

[0016] In some embodiments, the second flange is coaxial with the rotating shaft, and the second flange is connected to the connecting bracket by a plurality of threaded parts, the plurality of threaded parts being arranged at circumferential intervals along the rotating shaft.

[0017] The air preheater reducer according to an embodiment of the present invention includes a power source mounting structure as described in any of the above embodiments.

[0018] The technical advantages of the air preheater reducer according to the embodiments of the present invention are the same as the technical advantages of the power source mounting structure in the above embodiments, and will not be repeated here. Attached Figure Description

[0019] Figure 1 is a cross-sectional view of an air preheater reducer according to an embodiment of the present invention.

[0020] Figure label:

[0021] 1. Reducer; 11. Housing; 12. Input shaft; 2. Motor; 21. Connecting bracket; 3. First flange; 31. Limiting flange; 4. Second flange; 5. Inner ring of magnetic couple; 6. Outer ring of magnetic couple; 7. Base; 8. Sliding mechanism; 81. Slider; 82. Lead screw; 83. Handle. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0023] The power source mounting structure and air preheater reducer according to an embodiment of the present invention are described below with reference to FIG1.

[0024] The power source mounting structure of this embodiment of the invention is used for mounting on an output device, and includes a first flange 3, a second flange 4, a motor 2, an inner magnetic coupler ring 5, an outer magnetic coupler ring 6, and a base 7. The first flange 3 is mounted outside the housing 11 of the output device. One of the first flange 3 and the second flange 4 has a positioning hole, the axis of which is aligned with the axis of the input shaft 12 of the output device. The other of the first flange 3 and the second flange 4 is slidably fitted within the positioning hole. The motor 2 includes a connecting bracket 21, which is connected to the second flange 4. The axis of the motor 2's rotating shaft is aligned with the axis of the positioning hole. One of the inner magnetic coupler ring 5 and the outer magnetic coupler ring 6 is coaxially connected to the input shaft 12 of the output device, and the other is coaxially connected to the rotating shaft. The base 7 is connected to the housing 11, and the second flange 4 is slidably connected to the base 7 along the axis of the rotating shaft.

[0025] According to the power source mounting structure of this embodiment, after the base 7 is connected to the housing 11 of the output device, a second flange 4 is provided to slide relative to the base 7 along the axial direction of the input shaft 12 of the output device. This facilitates the movement of the second flange 4 and the motor 2 mounted thereon closer to and further away from the output device, thereby achieving the engagement of the inner magnetic coupler 5 and the outer magnetic coupler 6. After the inner magnetic coupler 5 is engaged, the first flange 3 and the second flange 4 are inserted and engaged through positioning holes, thereby ensuring the centered positioning of the inner magnetic coupler 5 and the outer magnetic coupler 6, and ensuring a reliable connection between the motor 2's shaft and the input shaft 12 of the output device. By fixing the motor 2 to the second flange 4 via the connecting bracket 21, when maintenance or replacement of the motor 2 is required, simply move the second flange 4 to separate the inner ring 5 and the outer ring 6 of the magnetic couple, and then remove the motor 2 from the second flange 4. With the support of the base 7, the position of the second flange 4 remains unchanged when removing the motor 2. Therefore, after installing the motor 2 after maintenance or replacement, it is not necessary to readjust and reposition the first flange 3 and the second flange 4. This effectively improves the efficiency of maintenance and replacement of the motor 2 and ensures the safe operation of the output device.

[0026] It should be noted that the output device can be a reducer 1, which includes multiple input shafts 12, one or more of which are connected to the rotating shaft of the motor 2 through the cooperation of the inner magnetic couple 5 and the outer magnetic couple 6.

[0027] In some embodiments, as shown in FIG1, a sliding mechanism 8 is installed on the base 7. The sliding mechanism 8 includes a slider 81, which is slidably connected to the base 7 along the axial direction of the rotating shaft. The slider 81 is connected to the second flange 4.

[0028] Based on the sliding fit between slider 81 and base 7, slider 81 is connected to second flange 4 so that base 7 supports second flange 4 through slider 81, ensuring the positioning reliability of second flange 4 and first flange 3.

[0029] Specifically, the slider 81 is rectangular, and the upper surface of the base 7 may be provided with a guide groove, in which the slider 81 slides and fits.

[0030] In some embodiments, the sliding mechanism 8 further includes a lead screw 82, which is rotatably mounted on the base 7 about its axis. The axial direction of the lead screw 82 is consistent with the axial direction of the rotating shaft. The slider 81 is provided with a threaded hole, which is threadedly engaged with the external thread of the lead screw 82.

[0031] By rotating the lead screw 82, the internal thread on the slider 81 rotates relative to the outer nut of the lead screw 82, thereby achieving a sliding fit between the slider 81 and the base 7. This allows the inner ring 5 of the magnetic couple to insert into and disengage from the outer ring 6 of the magnetic couple. Furthermore, after the motor 2 and the second flange 4 move to the set position relative to the first flange 3, the motor 2 and the second flange 4 are less likely to move erroneously. This effectively prevents the inner ring 5 of the magnetic couple from being mistakenly inserted into or disengaged from the outer ring 6 of the magnetic couple, thus avoiding any impact on the operation of the air preheater reducer.

[0032] Two baffles are arranged axially at intervals along the shaft above the base 7, and the two ends of the lead screw 82 are pivotally mounted on the two baffles respectively through bearings.

[0033] In some embodiments, the power source mounting structure further includes a handle 83, which is connected to one end of the lead screw 82.

[0034] That is, the staff can manually control the screw 82 to rotate through the handle 83 to move the motor 2, thereby effectively reducing the manufacturing cost of the power source installation structure.

[0035] Specifically, the handle 83 includes a first rod segment extending radially along the lead screw 82 and a second rod segment extending axially along the lead screw 82. The first end of the first rod segment is connected to the lead screw 82, and the second end of the first rod segment is connected to the second rod segment.

[0036] In some embodiments, as shown in FIG1, the inner ring 5 of the magnetic couple has a first position that is engaged within the outer ring 6 of the magnetic couple and a second position that is disengaged from the outer ring 6 of the magnetic couple. A positioning hole is provided on the second flange 4, and a limiting flange 31 is provided on the outer peripheral surface of the first flange 3. When the inner ring 5 of the magnetic couple is in the first position, part of the first flange 3 is engaged within the positioning hole, and the limiting flange 31 abuts against the end face of the second flange 4 facing the housing 11 of the output device.

[0037] The setting of the limiting flange 31 ensures that the inner ring 5 of the magnetic couple moves to the first position after the second flange 4 abuts against the limiting flange 31, thus completing the reliable connection between the motor 2 shaft and the input shaft 12 of the output device. The connection between the two is quick and reliable.

[0038] Specifically, the positioning hole is a round hole, and the limiting flange 31 extends circumferentially along the first flange 3 and is connected end to end.

[0039] It should be noted that the positioning hole can also be provided on the first flange 3.

[0040] In some embodiments, when the inner ring 5 of the magnetic couple is in the second position, a portion of the first flange 3 is slidably fitted within the positioning hole.

[0041] In other words, when replacing motor 2, the first flange 3 and the second flange 4 are still in a positioning and mating state. Therefore, after connecting the motor 2 to be maintained or replaced with the second flange 4, it is no longer necessary to perform positioning and mating on the first flange 3 and the second flange 4, making the maintenance and replacement of motor 2 more efficient.

[0042] Specifically, the second flange 4 is coaxial with the rotating shaft, and the second flange 4 is connected to the connecting bracket 21 by multiple threaded parts, which are arranged at intervals along the circumference of the rotating shaft. The threaded parts can be bolts or a combination of bolts and nuts.

[0043] In some embodiments, the positioning hole is coaxial with the rotating shaft, the first flange 3 forms a mounting cavity with an opening facing the motor 2, and the magnetic couple outer ring 6 is located inside the mounting cavity.

[0044] That is, the first flange 3 includes the magnetic couple outer ring 6. Thus, when the first flange 3 and the second flange 4 are engaged, the first flange 3 and the second flange 4 separate the magnetic couple outer ring 6 and the magnetic couple inner ring 5 from the outside world, thereby effectively preventing external dust and other impurities from adhering to the magnetic couple outer ring 6 and the magnetic couple inner ring 5 and affecting the reliability of their connection.

[0045] In some embodiments, the first flange 3 is provided with a plurality of positioning holes, which are arranged at intervals along the circumference of the inner ring 5 of the magnetic couple, and the second flange 4 is provided with a plurality of positioning pins, which correspond one-to-one with the positioning holes and are fitted into the positioning holes.

[0046] That is, the inner ring 5 and outer ring 6 of the magnetic couple can be aligned by setting multiple positioning holes and corresponding positioning pins. At this time, the second flange 4 also includes a base plate, and all positioning pins are connected to the base plate. The base plate is used to connect to the connecting bracket 21 of the slider 81 and the motor 2.

[0047] The air preheater reducer according to an embodiment of the present invention includes a power source mounting structure as described in any of the above embodiments.

[0048] The technical advantages of the air preheater reducer according to the embodiments of the present invention are the same as the technical advantages of the power source mounting structure in the above embodiments, and will not be repeated here.

[0049] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0053] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0054] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A power source mounting structure for mounting on an output device, characterized in that, include: A first flange and a second flange, wherein the first flange is installed outside the housing of the output device, one of the first flange and the second flange is provided with a positioning hole, the axis of the positioning hole being aligned with the axis of the input shaft of the output device, and the other of the first flange and the second flange being slidably fitted within the positioning hole; The motor includes a connecting bracket connected to the second flange, and the axial direction of the motor shaft is aligned with the axial direction of the positioning hole. The magnetic coupler consists of an inner ring and an outer ring, one of which is coaxially connected to the input shaft of the output device, and the other is coaxially connected to the rotating shaft. A base, which is connected to the housing, and a second flange, which is slidably connected to the base along the axial direction of the rotating shaft.

2. The power source mounting structure according to claim 1, characterized in that, A sliding mechanism is installed on the base, the sliding mechanism including a slider, the slider being slidably connected to the base along the axial direction of the rotating shaft, and the slider being connected to the second flange.

3. The power source mounting structure according to claim 2, characterized in that, The sliding mechanism also includes a lead screw, which is rotatably mounted on the base about its axis. The axial direction of the lead screw is consistent with the axial direction of the rotating shaft. The slider is provided with a threaded hole, which is threadedly engaged with the external thread of the lead screw.

4. The power source mounting structure according to claim 3, characterized in that, The power source mounting structure also includes a handle, which is connected to one end of the lead screw.

5. The power source mounting structure according to claim 1, characterized in that, The inner ring of the magnetic couple has a first position that engages within the outer ring of the magnetic couple and a second position that disengages from the outer ring of the magnetic couple. The positioning hole is provided on the second flange. The outer peripheral surface of the first flange is provided with a limiting flange. When the inner ring of the magnetic couple is in the first position, part of the first flange engages within the positioning hole. The limiting flange abuts against the end face of the second flange facing the housing of the output device.

6. The power source mounting structure according to claim 5, characterized in that, When the inner ring of the magnetic couple is in the second position, part of the first flange slides within the positioning hole.

7. The power source mounting structure according to claim 1, characterized in that, The positioning hole is coaxial with the rotating shaft, the first flange has a mounting cavity with an opening facing the motor, and the outer ring of the magnetic couple is located inside the mounting cavity.

8. The power source installation structure according to claim 1, characterized in that, The first flange is provided with a plurality of positioning holes, which are arranged at intervals along the circumference of the inner ring of the magnetic couple. The second flange is provided with a plurality of positioning pins, which correspond one-to-one with the positioning holes and are fitted into the positioning holes.

9. The power source mounting structure according to claim 1, characterized in that, The second flange is coaxial with the rotating shaft, and the second flange is connected to the connecting bracket by a plurality of threaded parts, which are arranged at intervals along the circumference of the rotating shaft.

10. An air preheater reducer, characterized in that, Includes the power source mounting structure according to any one of claims 1-9.

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