CN117052867A - Integrated forming structure of end cover and annular gear, forming method and rotary motor - Google Patents
Integrated forming structure of end cover and annular gear, forming method and rotary motor Download PDFInfo
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- CN117052867A CN117052867A CN202311220761.3A CN202311220761A CN117052867A CN 117052867 A CN117052867 A CN 117052867A CN 202311220761 A CN202311220761 A CN 202311220761A CN 117052867 A CN117052867 A CN 117052867A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005266 casting Methods 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 238000007711 solidification Methods 0.000 claims abstract description 5
- 230000008023 solidification Effects 0.000 claims abstract description 5
- 230000003313 weakening effect Effects 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 description 28
- 238000013461 design Methods 0.000 description 18
- 238000009434 installation Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 8
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/08—Profiling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/12—Toothed members; Worms with body or rim assembled out of detachable parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
- F16H2055/176—Ring gears with inner teeth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02017—Gearboxes; Mounting gearing therein characterised by special features related to the manufacturing of the gear case, e.g. special adaptations for casting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02034—Gearboxes combined or connected with electric machines
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Retarders (AREA)
Abstract
The application discloses an integrated forming structure of an end cover and an annular gear, a forming method and a rotary motor, and belongs to the technical field of solar rotary motors; the inner gear ring is characterized by comprising an end cover and an inner gear ring connected with the end cover, wherein a connecting groove is formed in one side, connected with the end cover, of the inner gear ring, one end, provided with the connecting groove, of the end cover is cast through a die, metal in a molten state is filled in the connecting groove on the inner gear ring during casting, and an integrated forming structure is formed with the inner gear ring after metal solidification forming. According to the technical scheme, the end cover and the annular gear which are connected through the bolts in the prior art are integrated and designed into the integrally formed part, so that the time cost is reduced, the assembly process is simplified, and the sealing performance is improved.
Description
Technical Field
The application relates to the technical field of solar rotary motors, in particular to an integrated forming structure and a forming method of an end cover and an inner gear ring and a rotary motor.
Background
The solar rotary motor comprises a motor part, a reduction gearbox part and a shaft outlet end cover part. The three parts are sequentially connected and fixed to assemble a complete solar rotary motor. Wherein the motor part accommodates a series of motor components such as an armature, the reduction gearbox part is provided with a reduction gear such as a sun gear planet carrier, and the output shaft end cover is provided with a series of connecting parts such as an output shaft. And after the three parts of components are assembled respectively, the three parts of components are assembled uniformly.
As shown in fig. 12 to 14, in the prior art, the matching manner of the end cover in the exiting shaft end cover assembly and the inner gear ring in the reduction gearbox assembly is specifically as follows: the end cover and the inner gear ring are coaxially positioned through the outer contour, the installation angle is positioned through two cylindrical pins, and then the end cover and the inner gear ring are fixed through four inner hexagon screws.
In the prior art, the defects of the installation and matching mode of the end cover and the annular gear are as follows:
1. the parts are more required, and the transfer cost and the raw material cost of the parts are higher;
2. the assembly flow is more, the procedure is complicated, the workload of workers is larger, and the time cost is higher;
3. the tightness is poor, and sealant needs to be additionally applied to ensure the matched tightness.
Disclosure of Invention
The application provides an integrated forming structure of an end cover and an annular gear, a forming method and a rotary motor, which are used for reducing time cost, simplifying assembly process and improving sealing performance.
In order to solve the technical problems, the technical scheme of the application is as follows:
according to a first aspect of the present application, there is provided an integrally formed structure of an end cap and an inner ring gear, including an end cap and an inner ring gear connected to the end cap, a connection groove being provided on a side of the inner ring gear connected to the end cap, the end cap being molded at one end of the inner ring gear provided with the connection groove by a mold, metal in a molten state of the end cap being filled into the connection groove on the inner ring gear at the time of molding, and forming an integrally formed structure with the inner ring gear after the metal is solidified and formed; according to the technical scheme, an end cover connected through bolts in the prior art is integrated with an inner gear ring, and is designed to be an integrally formed part; the beneficial effects are that time cost is reduced, assembly process is simplified, and sealing performance is improved.
Further, the connecting grooves comprise outer edge connecting grooves and inner edge connecting grooves, the outer edge connecting grooves are formed in the outer side wall of the inner gear ring, and the inner edge connecting grooves are formed in the inner side wall of the inner gear ring; an outer edge connecting groove with the radian of 60 degrees is formed in the outer side wall of the inner gear ring at intervals of 60 degrees, an inner edge connecting groove with the radian of 60 degrees is formed in the inner side wall of the inner gear ring at intervals of 60 degrees, and the grooving positions of the inner edge connecting groove and the grooving positions of the outer edge connecting groove are staggered by 60 degrees and used for preventing the inner and outer grooving from weakening the structural strength of the inner gear ring at the overlapping position; the width of the connecting groove is 3mm, and the end cover is made of aluminum alloy; that is, the integrated molding technology of the end cover and the inner gear ring selects the outer wall and the inner wall of the joint of the inner gear ring and the end cover to be respectively provided with a circular arc-shaped connecting groove, and the outer wall is provided with a section of outer edge connecting groove with the radian of 60 degrees at intervals of 60 degrees, and the height of the outer wall is 3 mm; the inner wall is also provided with an inner edge connecting groove with a section of radian of 60 degrees at intervals of 60 degrees, but the slotting position of the inner wall is staggered with the slotting position of the outer wall by 60 degrees, so that the inner and outer slotting at the overlapping position is prevented from weakening the structural strength of the inner gear ring part; and (3) arranging six sections of connecting grooves in total, loading the processed annular gear into a designed casting die, and integrally casting and forming the end cover by utilizing an aluminum alloy casting and forming technology.
Further, the annular gear adopts a differential design, specifically, a first annular gear section and a second annular gear section are arranged along the axial direction of the annular gear, the second annular gear section is arranged at one end close to the end cover, and the modulus of the second annular gear section is larger than that of the first annular gear section; a cutter retracting groove is formed at the joint of the first annular gear section and the second annular gear section and is used for conveniently processing cutter retracting of gear shaper cutters with different moduli; specifically, a 3mm high and 1mm deep tool retracting groove is formed at the joint of two sections of inner gear rings with different moduli, so as to facilitate tool retracting of a gear shaper tool for processing different moduli, otherwise, two sections of inner teeth with different numbers of teeth cannot be processed on the same inner gear ring; that is, the inner gear section of the inner gear ring is designed differently near the output end of the output shaft and the input end of the motor shaft, different moduli can be selected for the inner teeth of the two sections, small moduli can be selected near the output shaft end of the motor, the size of the planetary gear can be reduced, and the small modulus teeth more suitable for low torque can be selected for the second-stage planetary reduction stage near the output shaft of the motor because the torque of the output shaft of the motor is small and the rotating speed is high. The output rotating speed is continuously reduced and the output torque is amplified through the one-stage planetary reduction, so that a three-stage four-stage planetary reduction part close to the output shaft of the reduction gearbox is selected to be more suitable for low-speed and high-torque large-module gear transmission; the annular gear in the technical scheme adopts differential design, so that motor parts with different sizes and models can be shared, and the cost of the parts is reduced; the differential design changes the number of teeth of the inner gear ring, and the selection of the reduction ratio is enlarged.
Further, the inner wall of the first annular gear section is provided with a helical tooth groove, and the inner wall of the second annular gear section is provided with a straight tooth groove; in particular, compared with a straight gear, the helical gear can better adapt to high-speed transmission, and simultaneously noise during operation can be reduced, so that a secondary reduction part close to an output shaft of a motor is designed into small-modulus helical gear transmission; the output rotating speed is continuously reduced through the speed reduction of a speed reduction stage of a second-stage helical gear, the output torque is amplified, and the three-four stages are selected to be more suitable for low-speed and high-torque large-modulus spur gear transmission; therefore, the design of the inner gear ring of the bevel gear section in the technical scheme can properly reduce the running noise of the motor.
Furthermore, the annular gear adopts a modularized design, and specifically comprises a gear ring sleeve and an inner gear detachably arranged in the gear ring sleeve; the internal gear is connected with the gear ring sleeve through a fastening pin, a first through hole is formed in the side wall of the gear ring sleeve, a blind hole aligned with the first through hole is formed in the outer side wall of the internal gear, and the fastening pin penetrates through the first through hole and is embedded into the blind hole; specifically, the outer contour of the internal gear is the inner tooth contour of the gear sleeve, considering that all teeth are required to be processed, the cost is high and the waste is caused, the outer contour of the internal gear is designed to be four or three teeth and plays a role of a spline, a guiding function is realized during installation, a circumferential fixing function is realized after the installation is completed, a through hole penetrating the gear sleeve with the diameter of 5mm and the depth of 13mm is drilled at the center of the gear sleeve after the installation is completed, the internal gear is not penetrated, and a fastening pin is installed to play a role of axial fixing; in short, the technical scheme can be understood that another replaceable annular gear is additionally arranged in one annular gear, and under the condition that the overall outer contour of the planetary gear reducer is unchanged, the modulus and the tooth number of the annular gear are changed, so that a series of parameters such as the output torque and the rotation speed of different motors are adapted, or the reduction ratio, the output torque and the like of the reduction gearbox are changed according to different requirements, and the parameters are selected according to different design requirements.
According to a second aspect of the present application, there is provided a solar rotary electric machine, including the above-mentioned integrally formed structure of an end cap and an inner gear ring.
According to a third aspect of the present application, there is provided an integral molding method of an end cap and an inner ring gear, comprising the steps of:
s1, a connecting groove is formed in one side, connected with an end cover, of an inner gear ring;
s2, casting the end cover at one end, provided with the connecting groove, of the inner gear ring through a die, filling molten metal of the end cover into the connecting groove of the inner gear ring during casting, and forming an integrated forming structure with the inner gear ring after metal solidification forming.
Compared with the prior art, the technical scheme of the application has the beneficial effects that:
1. in the technical scheme of the application, the end cover part manufactured by the aluminum alloy casting molding technology has the advantages of high precision, low cost, stable quality and the like;
2. in the technical scheme of the application, the integrated structure has higher sealing performance, and can achieve better waterproof and dustproof effects without smearing sealant;
3. according to the technical scheme, the integrated structure is not fixed by using bolts, so that the assembly flow is reduced, and the production efficiency is improved;
4. in the technical scheme of the application, the annular gear adopts differential design, so that motor parts with different sizes and models can be shared, and the cost of the parts is reduced; the differential design changes the number of teeth of the inner gear ring, and enlarges the selection of the reduction ratio;
5. in the technical scheme of the application, the design of the inner gear ring of the bevel gear section can properly reduce the running noise of the motor;
6. according to the technical scheme, the annular gear adopts a modularized design, so that under the condition that the overall outer contour of the planetary gear reducer is unchanged, the modulus and the number of teeth of the annular gear are changed, and a series of parameters such as the reduction ratio, the output torque and the like of a reduction gearbox are changed according to different requirements or the output torque and the rotational speed of different motors are adapted.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an exploded external view of an integrally formed structure of an end cap and an inner ring gear according to an embodiment of the present application;
fig. 2 is an exploded cross-sectional view of an integrally formed structure of an end cap and an inner ring gear provided in an embodiment of the present application;
fig. 3 is an assembly appearance diagram of an integrally formed structure of an end cap and an inner ring gear according to an embodiment of the present application;
fig. 4 is an assembly sectional view of an integrally formed structure of an end cap and an inner ring gear provided in an embodiment of the present application;
fig. 5 is a schematic perspective view of an integrally formed structure of an end cap and an inner gear ring according to an embodiment of the present application;
fig. 6 is a cross-sectional view of the integrally formed structure of the end cover and the ring gear according to the embodiment of the present application when the ring gear is differently designed;
fig. 7 is a schematic perspective view of a differential design of an inner gear ring according to an integrally formed structure of an end cover and the inner gear ring provided by an embodiment of the present application;
fig. 8 is a cross-sectional view of an integrally formed structure of an end cap and an inner ring gear provided in an embodiment of the present application when a helical gear is used in a first ring gear segment;
fig. 9 is a schematic perspective view of an integrally formed structure of an end cover and an inner gear ring according to an embodiment of the present application when a helical gear is used in a first inner gear ring segment;
fig. 10 is a cross-sectional view of an integrally formed structure of an end cap and an inner ring gear according to an embodiment of the present application when the inner ring gear is modularly designed;
fig. 11 is a schematic perspective view of a modular design of an inner gear ring according to an embodiment of the present application;
fig. 12 is a schematic perspective view of an assembly structure of an end cap and an inner gear ring in the prior art;
fig. 13 is an exploded external view showing a structure of assembling an end cap and an inner ring gear in the related art;
fig. 14 is an exploded cross-sectional view of an assembling structure of an end cap and an inner ring gear in the related art;
the figure indicates:
1. an end cap; 2. an inner gear ring; 3. a connecting groove; 301. an outer edge connecting groove; 302. an inner edge connecting groove; 4. a first ring gear segment; 5. a second ring gear segment; 6. a tool retracting groove; 7. a tooth ring sleeve; 8. a tightening pin; 9. an internal gear; i, end cover A; II, an inner gear ring A.
Detailed Description
For a better understanding of the objects, structures and functions of the present application, the technical solution of the present application will be described in further detail with reference to the drawings and the specific preferred embodiments.
In the description of the present application, it should be understood that the terms "left", "right", "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and "first", "second", etc. do not indicate the importance of the components, and thus are not to be construed as limiting the present application. The specific dimensions used in the examples are for illustration of the technical solution only and do not limit the scope of protection of the application. It will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Unless specifically stated or limited otherwise, the terms "mounted," "configured," "connected," "secured," and the like should be construed broadly, as they may be either fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1:
as shown in fig. 1-5, the present application provides a technical solution: the integrated forming structure of the end cover and the annular gear comprises an end cover 1 and the annular gear 2 connected with the end cover 1, wherein a connecting groove 3 is formed in one side, connected with the end cover 1, of the annular gear 2, one end, provided with the connecting groove 3, of the annular gear 2 is cast by a mould, and metal in a molten state of the end cover 1 is filled in the connecting groove 3 on the annular gear 2 during casting and forms an integrated forming structure with the annular gear 2 after the metal is solidified and formed;
according to the technical scheme, an end cover connected through bolts in the prior art is integrated with an inner gear ring, and is designed to be an integrally formed part; the beneficial effects are that time cost is reduced, assembly process is simplified, and sealing performance is improved.
Example 2:
on the basis of embodiment 1, referring to fig. 1-2 and fig. 4-6, the connecting groove 3 includes an outer edge connecting groove 301 and an inner edge connecting groove 302, the outer edge connecting groove 301 is provided on the outer side wall of the ring gear 2, and the inner edge connecting groove 302 is provided on the inner side wall of the ring gear 2.
Further, an outer edge connecting groove 301 with a radian of 60 ° is formed in the outer side wall of the inner gear ring 2 at each interval of 60 °, an inner edge connecting groove 302 with a radian of 60 ° is formed in the inner side wall of the inner gear ring 2 at each interval of 60 °, and the grooving positions of the inner edge connecting groove 302 and the grooving positions of the outer edge connecting groove 301 are staggered by 60 °, so that the inner and outer grooving in the overlapping positions are prevented from weakening the structural strength of the inner gear ring 2.
Further, the width of the connecting groove 3 is 3mm, and the material of the end cover 1 is aluminum alloy.
That is, the integrated molding technology of the end cover 1 and the inner gear ring 2 selects the outer wall and the inner wall of the joint of the inner gear ring 2 and the end cover 1 to be respectively provided with a circular arc-shaped connecting groove 3, and the outer wall is provided with a section of outer edge connecting groove 301 with the radian of 60 degrees at intervals of 60 degrees, and the height of the outer wall is 3 mm; the inner wall is also provided with an inner edge connecting groove 302 with a section of radian of 60 degrees at intervals of 60 degrees, but the slotting position of the inner wall is staggered with the slotting position of the outer wall by 60 degrees, so that the inner and outer slotting at the overlapped position is prevented from weakening the structural strength of the inner gear ring part; and (3) arranging the six connecting grooves in total inside and outside, loading the processed annular gear 2 into a designed casting die, and integrally casting and forming the end cover 1 by utilizing an aluminum alloy casting and forming technology.
Example 3:
on the basis of embodiment 1, referring to fig. 6-7, the ring gear 2 is designed differently, specifically, the ring gear 2 is provided with a first ring gear section 4 and a second ring gear section 5 along the axial direction, the second ring gear section 5 is disposed at one end close to the end cover 1, and the modulus of the second ring gear section 5 is greater than that of the first ring gear section 4.
Further, a cutter retracting groove 6 is formed at the joint of the first annular gear section 4 and the second annular gear section 5, and is used for conveniently retracting the gear shaper cutters with different moduli; specifically, a 3mm high and 1mm deep tool withdrawal groove is formed at the joint of two sections of inner gear rings with different moduli, so as to facilitate tool withdrawal of the gear shaper for machining different moduli, otherwise, two sections of inner teeth with different numbers of teeth are not machined on the same inner gear ring 2.
That is, the inner gear section of the inner gear ring 2 is designed differently near the output end of the output shaft and the input end of the motor shaft, different moduli can be selected for the inner teeth of the two sections, small moduli can be selected near the output shaft end of the motor, the size of the planetary gear can be reduced, and the small modulus teeth more suitable for low torque can be selected for the second-stage planetary reduction stage near the output shaft of the motor because the torque of the output shaft of the motor is small and the rotating speed is high. The output rotating speed is continuously reduced and the output torque is amplified through the one-stage planetary reduction, so that the three-stage four-stage planetary reduction part near the output shaft of the reduction gearbox is selected to be more suitable for low-speed and high-torque large-module gear transmission.
Specifically, the diameter of the reference circle of the gear is equal to the number of teeth of the module, the same number of teeth of the small module is used for obtaining a smaller diameter of the reference circle, as shown in fig. 6, the inner diameter of the inner gear ring 2 of the small module section is smaller than that of the large module section, so that the planet carrier and the planet wheel which can be installed on the small module section can be replaced by small-size models, and the size of the planet gear can be reduced. For example, in the prior art, a planetary gear speed reducing mechanism with the same small size is provided, the outer diameter of an inner gear ring is 68mm, the modulus is 1, and the number of teeth is 46; the external diameter of the annular gear 2 shown in fig. 6 is 88mm, the modulus is 1.5, the number of teeth is unchanged, and the annular gear can be used for part of parts after differential design.
The inner gear ring 2 in the technical scheme of the embodiment adopts a differential design, so that the motor parts with different sizes and models can be shared, and the cost of the parts is reduced; the differential design changes the number of teeth of the inner gear ring, and the selection of the reduction ratio is enlarged.
Example 4:
on the basis of embodiment 3, referring to fig. 8-9, the inner wall of the first annular gear section 4 is provided with helical tooth grooves, and the inner wall of the second annular gear section 5 is provided with straight tooth grooves.
In particular, compared with a straight gear, the helical gear can better adapt to high-speed transmission, and simultaneously noise during operation can be reduced, so that a secondary reduction part close to an output shaft of a motor is designed into small-modulus helical gear transmission; the output rotating speed is continuously reduced through the speed reduction of the speed reduction stage of the second-stage helical gear, the output torque is amplified, and the three-stage helical gear is more suitable for low-speed and high-torque large-modulus spur gear transmission. Therefore, the design of the inner gear ring of the bevel gear section in the technical scheme of the embodiment can properly reduce the running noise of the motor.
Example 5:
on the basis of embodiment 1, referring to fig. 10-11, the inner gear ring 2 adopts a modularized design, specifically, the inner gear ring 2 comprises a gear ring sleeve 7 and an inner gear 9 detachably mounted inside the gear ring sleeve 7.
Further, the internal gear 9 is connected with the gear ring sleeve 7 through the fastening pin 8, a first through hole is formed in the side wall of the gear ring sleeve 7, a blind hole aligned with the first through hole is formed in the outer side wall of the internal gear 9, and the fastening pin 8 penetrates through the first through hole and is embedded into the blind hole.
Specifically, the outer contour of the internal gear 9 is the inner tooth contour of the tooth ring sleeve 7, considering that all teeth are required to be machined, the cost is high and waste is caused, the outer contour of the internal gear 9 is designed to be four or three teeth, the function of a spline is achieved, the guiding function is achieved during installation, the circumferential fixing function is achieved after installation, after the installation is achieved, a through hole penetrating through the tooth ring sleeve 7, the diameter of which is 5mm, the depth of which is 13mm, is drilled in the center of the tooth ring sleeve 7, the internal gear 9 is not penetrated, and the axial fixing function is achieved by installing a fastening pin 8.
In short, the technical scheme of the embodiment can be understood that another replaceable annular gear is additionally arranged in one annular gear, and under the condition that the overall outline of the planetary gear reducer is unchanged, the modulus and the number of teeth of the annular gear are changed, so that a series of parameters such as the output torque and the rotation speed of different motors are adapted, or the reduction ratio, the output torque and the like of the reduction gearbox are changed according to different requirements, and the parameters are selected according to different design requirements.
Example 6:
the application provides a technical scheme that: a solar rotary motor comprises the end cover and the inner gear ring integrated structure of the embodiment.
Example 7:
the application provides a technical scheme that: the integral forming method of the end cover and the inner gear ring comprises the following steps:
s1, a connecting groove 3 is formed in one side, connected with the end cover 1, of the internal gear ring 2;
s2, casting the end cover 1 at one end, provided with the connecting groove 3, of the ring gear 2 through a die, filling molten metal of the end cover 1 into the connecting groove 3 on the ring gear 2 during casting, and forming an integrated forming structure with the ring gear 2 after metal solidification forming.
Comparative example:
referring to fig. 12 to 14, in the prior art, the matching manner of the end cap ai in the exiting shaft end cap assembly and the ring gear aii in the reduction gearbox assembly is specifically as follows: the end cover AII and the inner gear ring AII are coaxially positioned through the outer contour, are positioned at the installation angle through two cylindrical pins, and are fixed through four inner hexagon screws.
In the prior art, the defects of the installation and matching mode of the end cover AII and the annular gear AII are that: the parts are more required, and the transfer cost and the raw material cost of the parts are higher; the assembly flow is more, the procedure is complicated, the workload of workers is larger, and the time cost is higher; the tightness is poor, and sealant needs to be additionally applied to ensure the matched tightness.
It is to be understood that the above examples of the present application are provided by way of illustration only and not by way of limitation of the embodiments of the present application. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are desired to be protected by the following claims.
Claims (10)
1. The integrated into one piece structure of end cover and ring gear, its characterized in that: including end cover (1) and ring gear (2) that are connected with end cover (1), one side that ring gear (2) are connected with end cover (1) is provided with spread groove (3), end cover (1) are equipped with the one end of spread groove (3) through mould casting ring gear (2), in the spread groove (3) on ring gear (2) are filled to the metal of molten state when casting to end cover (1) to form integrated into one piece structure with ring gear (2) after the metal solidification shaping.
2. The integrally formed structure of the end cover and the ring gear according to claim 1, wherein the connecting groove (3) includes an outer edge connecting groove (301) and an inner edge connecting groove (302), the outer edge connecting groove (301) is provided on an outer side wall of the ring gear (2), and the inner edge connecting groove (302) is provided on an inner side wall of the ring gear (2).
3. The integrated structure of the end cover and the inner gear ring according to claim 2, wherein an outer edge connecting groove (301) with a section of radian of 60 ° is formed in an outer side wall of the inner gear ring (2) at each interval of 60 °, an inner edge connecting groove (302) with a section of radian of 60 ° is formed in an inner side wall of the inner gear ring (2) at each interval of 60 °, and a grooving position of the inner edge connecting groove (302) is staggered from a grooving position of the outer edge connecting groove (301) by 60 ° so as to prevent inner and outer grooving at an overlapping position from weakening structural strength of the inner gear ring (2).
4. The integrated structure of the end cover and the inner gear ring according to claim 1, wherein the inner gear ring (2) is provided with a first inner gear ring section (4) and a second inner gear ring section (5) along an axial direction, the second inner gear ring section (5) is arranged at one end close to the end cover (1), and a modulus of the second inner gear ring section (5) is larger than a modulus of the first inner gear ring section (4).
5. The integrated structure of the end cover and the inner gear ring according to claim 4, wherein a cutter retracting groove (6) is formed at the joint of the first inner gear ring section (4) and the second inner gear ring section (5) for facilitating cutter retracting of the gear shaper cutter with different moduli.
6. The integrated structure of the end cover and the inner gear ring according to claim 4, wherein the inner wall of the first inner gear ring section (4) is provided with helical tooth grooves, and the inner wall of the second inner gear ring section (5) is provided with straight tooth grooves.
7. The integrally formed structure of the end cover and the ring gear according to claim 1, wherein the ring gear (2) includes a ring gear sleeve (7) and an internal gear (9) detachably mounted inside the ring gear sleeve (7).
8. The integrated structure of the end cover and the inner gear ring according to claim 7, wherein the inner gear (9) is connected with the gear ring sleeve (7) through a fastening pin (8), a first through hole is formed in the side wall of the gear ring sleeve (7), a blind hole aligned with the first through hole is formed in the outer side wall of the inner gear (9), and the fastening pin (8) penetrates through the first through hole and is embedded into the blind hole.
9. A solar rotary electric machine, characterized in that: the solar rotary motor comprises the integrated structure of the end cover and the annular gear as claimed in any one of claims 1 to 8.
10. The integral forming method of the end cover and the inner gear ring is characterized by comprising the following steps:
s1, a connecting groove (3) is formed in one side, connected with the end cover (1), of the inner gear ring (2);
s2, casting the end cover (1) at one end, provided with the connecting groove (3), of the ring gear (2) through a die, filling molten metal of the end cover (1) into the connecting groove (3) on the ring gear (2) during casting, and forming an integrated forming structure with the ring gear (2) after metal solidification forming.
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| CN202311220761.3A CN117052867B (en) | 2023-09-21 | 2023-09-21 | Integrated forming structure of end cover and annular gear, forming method and rotary motor |
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| CN202311220761.3A CN117052867B (en) | 2023-09-21 | 2023-09-21 | Integrated forming structure of end cover and annular gear, forming method and rotary motor |
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| CN117052867B CN117052867B (en) | 2024-02-13 |
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| CN111425566A (en) * | 2020-04-14 | 2020-07-17 | 龙工（上海）精工液压有限公司 | Walking motor speed reducer |
| CN218625319U (en) * | 2022-11-23 | 2023-03-14 | 合肥海源机械有限公司 | Inner gear ring structure for drive axle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3803947A (en) * | 1971-01-08 | 1974-04-16 | A Hillyer | Epicyclic change speed gear hubs |
| JPH1137226A (en) * | 1997-07-23 | 1999-02-12 | Namiki Precision Jewel Co Ltd | Small planetary reduction gear and assembly method thereof |
| CN202165571U (en) * | 2011-07-26 | 2012-03-14 | 蚌埠市行星工程机械有限公司 | Composite structure of gear ring and end cover of planetary reducer |
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| CN117052867B (en) | 2024-02-13 |
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