Deceleration power component with compact structure

Abstract

The utility model discloses a speed reduction power part with a compact structure, which relates to the technical field of speed reduction motors, and comprises a shell and a driving motor arranged in the shell, the shell comprises a lower shell and an upper shell covering the lower shell, the upper shell covers the lower shell to form an internal mounting space, and the driving motor is arranged in the lower shell. The driving motor is mounted at the bottom of the lower shell, and a rotating shaft of the driving motor upwards penetrates into the mounting space; a plurality of duplex planetary gears are rotationally connected to the lower shell and located in the mounting space, the multiple duplex planetary gears are distributed in an annular array with a rotating shaft of the driving motor as the array center, and driving gears of the multiple duplex planetary gears are engaged with the rotating shaft of the driving motor. An inner gear ring is arranged on the upper shell and located in the installation space, an output shaft is fixedly connected in the axial direction of the inner gear ring, and the output shaft penetrates out of the outer side of the upper shell. And the whole structure is more compact.

Description

TECHNICAL FIELD

[0001] The utility model relates to a reduction motor technical field, concretely is a compact structure's reduction power component. BACKGROUND

[0002] In the field of reduction motor, as the core equipment, the performance and the rationality of the structure design of the reduction motor directly determine the overall operation performance of the related equipment.

[0003] The conventional reduction motor usually adopts the complex multistage gear transmission structure, and the layout of each gear and shafting is loose, resulting in the overall volume being large. This makes it extremely difficult to install in some devices with strict space requirements, and also increases the overall volume and weight of the device, which is contrary to the development trend of miniaturization and light weight of the device.

[0004] Moreover, the conventional reduction motor also has obvious shortcomings in power transmission efficiency. In the multistage transmission process, the meshing friction and energy loss between the gears are large, resulting in a large amount of power loss during transmission, which cannot efficiently transmit the power of the driving motor to the output end, greatly reducing the energy utilization efficiency of the device.

[0005] In addition, the stability and reliability of some conventional reduction motors also need to be improved. The complex structure makes it difficult to ensure the cooperation precision between parts, and in the long-term operation process, problems such as gear wear and looseness are likely to occur, which seriously affects the normal operation of the device, thereby increasing the maintenance cost and downtime.

[0006] In summary, it is urgent to develop a compact structure, high power transmission efficiency and reliable stability reduction motor in the field of reduction motor, and the new reduction power component is born based on such background. INVENTION CONTENTS

[0007] The utility model aims at providing a technical scheme that can solve the above problems.

[0008] A compact structure reduction power component, comprising a housing and a driving motor arranged in the housing, the housing comprises a lower housing and an upper housing arranged on the lower housing, the upper housing is arranged on the lower housing to form an installation space inside, the driving motor is arranged at the bottom of the lower housing, and the rotating shaft of the driving motor penetrates into the installation space upwardly;

[0009] A plurality of double planetary gears are rotatably connected to the lower housing and located in the installation space, the plurality of double planetary gears are arranged in a ring array with the rotating shaft of the driving motor as the array center, and the driving gears of the plurality of double planetary gears are respectively engaged with the rotating shaft of the driving motor;

[0010] The upper shell is provided with an inner ring gear on the upper shell and in the mounting space, an output shaft is fixedly connected along the axial direction of the inner ring gear, and the output shaft protrudes to the outside of the upper shell, wherein the driven gears of the plurality of double planetary gears are respectively engaged with the inner ring gear.

[0011] As a further scheme of the utility model, the lower shell is fixedly connected with a planetary gear cover plate in the mounting space, so as to divide the mounting space into an upper space and a lower space by the planetary gear cover plate.

[0012] The driving gears of the plurality of double planetary gears are matched with the rotating shaft of the driving motor in the lower space.

[0013] The driven gears of the plurality of double planetary gears are matched with the inner ring gear in the upper space.

[0014] As a further scheme of the utility model, a plurality of rotating shaft grooves are formed along the end surface of the planetary gear cover plate, and the plurality of rotating shaft grooves correspond one-to-one to the plurality of double planetary gears.

[0015] An oil-containing copper sleeve is arranged in the rotating shaft groove and sleeved on the double planetary gear, and the oil-containing copper sleeve is arranged between the driving gear and the driven gear of the double planetary gear.

[0016] As a further scheme of the utility model, a plurality of connecting holes are further formed along the end surface of the planetary gear cover plate, a plurality of threaded grooves are formed along the end surface of the lower shell, and the plurality of threaded grooves correspond one-to-one to the plurality of connecting holes.

[0017] A screw member is connected between the threaded groove and the corresponding connecting hole.

[0018] As a further scheme of the utility model, the rotating shaft of the driving motor penetrates into the mounting space along the axial direction of the lower shell, so that the center line of rotation of the rotating shaft of the driving motor coincides with the extension line of the center line of rotation of the output shaft.

[0019] As a further scheme of the utility model, the driving gear and the driven gear of the double planetary gear are coaxially arranged, and the driving gear and the driven gear are an integral structure.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1) The entire component is arranged in a reasonable space and has a unique gear transmission structure, unnecessary space occupation is reduced, the overall volume is greatly reduced, the weight is reduced, the component is more suitable for installation in equipment with strict space requirements, and the development trend of equipment miniaturization and light weight is conformed to;

[0022] 2) In the double planetary gear transmission mode, multiple gears are engaged at the same time, compared with the traditional multiple gears engaged in turn, the number of engagement is reduced, the energy loss caused by the engagement friction is reduced, the power of the driving motor can be more efficiently transmitted to the output shaft, and the energy utilization efficiency of the equipment is improved.

[0023] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0025] Figure 1 is a structural schematic diagram of the present application;

[0026] Figure 2 is a sectional structure schematic diagram of the present application;

[0027] Figure 3 is an explosion structure schematic diagram of the present application;

[0028] Figure 4 is a structural schematic diagram of the present application planetary tooth cover plate and lower shell cooperation;

[0029] Figure 5 is an explosion structural schematic diagram of the present application planetary tooth cover plate and lower shell cooperation.

[0030] The reference signs and names in the drawings are as follows:

[0031] 1, shell; 2, driving motor; 3, lower shell; 4, upper shell; 5, mounting space; 6, rotating shaft; 7, double planetary gear; 8, driving gear; 9, inner gear ring; 10, output shaft; 11, driven gear; 12, planetary tooth cover plate; 13, upper space; 14, lower space; 15, rotating shaft slot; 16, oil-containing copper sleeve; 17, connecting hole; 18, thread groove; 19, screw part. DETAILED DESCRIPTION

[0032] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0033] Please refer to Figures 1-5 In the embodiment of the present application, a compact speed reduction power component comprises a housing 1 and a driving motor 2 arranged on the housing 1, the housing 1 comprises a lower housing 3 and an upper housing 4 arranged on the lower housing 3, the upper housing 4 is arranged on the lower housing 3 to form an installation space 5 inside, the driving motor 2 is arranged on the bottom of the lower housing 3, and a rotating shaft 6 of the driving motor 2 penetrates into the installation space 5 upwardly.

[0034] A plurality of double planetary gears 7 are rotatably connected on the lower housing 3 and located in the installation space 5, the double planetary gears 7 are arranged in a ring array with the rotating shaft 6 of the driving motor 2 as the array center, and the driving gears 8 of the double planetary gears 7 are respectively engaged with the rotating shaft 6 of the driving motor 2.

[0035] An inner ring gear 9 is arranged on the upper housing 4 and located in the installation space 5, an output shaft 10 is fixedly connected along the axial direction of the inner ring gear 9, and the output shaft 10 penetrates to the outside of the upper housing 4, wherein the driven gears 11 of the double planetary gears 7 are respectively engaged with the inner ring gear 9.

[0036] The utility model discloses technical scheme in which the deceleration power component (i.e. deceleration motor) is composed of lower casing 3 and upper casing 4 to form internal mounting space 5, the driving motor 2 is stably installed at the bottom of the lower casing 3, and the rotating shaft 6 is vertically upwardly inserted into the space, which makes the motor and the subsequent transmission component closely arranged on the same axis, avoiding the horizontal space occupation caused by the separation of the motor and the transmission component in the traditional structure; the double planetary gear 7 is arranged in a ring array around the rotating shaft 6 of the driving motor 2, and the spacing between the gears is reduced, so that no additional support structure is needed to separate the multi-stage transmission gears, the horizontal size of the overall component is greatly reduced, and the compact structure is realized; the driving gear 8 of the double planetary gear 7 is directly engaged with the rotating shaft 6 of the driving motor 2, when the driving motor 2 operates, the rotating shaft 6 drives the driving gear 8 to rotate, the driven gear 11 of the double planetary gear 7 is engaged with the inner ring gear 9, thereby driving the output shaft 10 fixedly connected with the inner ring gear 9 to rotate, and power output is realized; since multiple double planetary gears 7 are simultaneously engaged, compared with the traditional multi-stage gear transmission, the number of force points is increased, and when the same power is transmitted, the load borne by a single gear is dispersed, and by adjusting the number, modulus and tooth number of the planetary gears, a large transmission ratio can be easily realized, and different deceleration requirements can be met.

[0037] In summary, through reasonable space layout and unique gear transmission structure, the entire component reduces unnecessary space occupation, greatly reduces the overall volume, reduces the weight, is more suitable for installation in equipment with strict space requirements, and conforms to the development trend of equipment miniaturization and light weight; in the double planetary gear 7 transmission mode, multiple gears are simultaneously engaged, compared with the traditional multi-stage gear engagement, the number of engagement times is reduced, the energy loss caused by engagement friction is reduced, the power of the driving motor 2 can be more efficiently transmitted to the output shaft 10, and the energy utilization efficiency of the equipment is improved.

[0038] In the utility model embodiment, the lower casing 3 is fixedly connected with the planetary gear cover plate 12 in the mounting space 5, so as to divide the mounting space 5 into the upper space 13 and the lower space 14 through the planetary gear cover plate 12.

[0039] The driving gears 8 of the plurality of double planetary gears 7 are matched with the rotating shaft 6 of the driving motor 2 in the lower space 14.

[0040] The driven gears 11 of the plurality of double planetary gears 7 are matched with the inner ring gear 9 in the upper space 13.

[0041] The planet tooth cover plate 12 is fixed to the lower shell 3, and divides the mounting space 5 into upper and lower layers, and the design builds a dedicated working area for each transmission component, specifically, in the lower space 14, the driving gear 8 of the double planetary gear 7 cooperates with the rotating shaft 6 of the driving motor 2, and the high-speed rotating power output by the motor is utilized; in the upper space 13, the driven gear 11 of the double planetary gear 7 cooperates with the inner gear ring 9, and the power reduction output is realized; the planet tooth cover plate 12 not only prevents mutual interference between different transmission components, but also provides stable support for the rotation of the double planetary gear 7 by means of its own structure, guarantees the orderly progress of the transmission process, so that the component distribution is more orderly, the waste of internal space is reduced, and the entire reduction power component is miniaturized and lightened, which can better adapt to the space-limited equipment.

[0042] In the embodiment of the utility model, a plurality of rotating shaft grooves 15 are opened along the end face of the planet tooth cover plate 12, and the plurality of rotating shaft grooves 15 correspond one-to-one to the plurality of double planetary gears 7.

[0043] An oil-containing copper sleeve 16 is arranged in the rotating shaft groove 15 and sleeved on the double planetary gear 7, and the oil-containing copper sleeve 16 is interposed between the driving gear 8 and the driven gear 11 of the double planetary gear 7.

[0044] The rotating shaft groove 15 corresponding one-to-one to the double planetary gear 7 is opened along the end face of the planet tooth cover plate 12, which provides a precise mounting position for the oil-containing copper sleeve 16, and the oil-containing copper sleeve 16 is sleeved on the double planetary gear 7 and arranged between the driving gear 8 and the driven gear 11, which optimizes the rotation performance of the double planetary gear 7 by utilizing the characteristics of the oil-containing copper sleeve 16, specifically, the lubricating oil contained in the oil-containing copper sleeve 16 can continuously lubricate the rotation of the gear when the double planetary gear 7 is running, reducing the friction between the gear and the planet tooth cover plate 12, and the rotating shaft groove 15 ensures the stability of the oil-containing copper sleeve 16, so that it will not be displaced during gear rotation, ensuring the continuity and stability of the lubrication effect.

[0045] In the embodiment of the utility model, a plurality of connecting holes 17 are also opened along the end face of the planet tooth cover plate 12, and a plurality of threaded grooves 18 are opened along the end face of the lower shell 3, and the plurality of threaded grooves 18 correspond one-to-one to the plurality of connecting holes 17.

[0046] The threaded groove 18 and its corresponding connecting hole 17 are connected by a screw piece 19.

[0047] The connecting hole 17 is provided along the end surface of the planetary gear cover plate 12, and a threaded groove 18 corresponding to the connecting hole 17 is provided on the end surface of the lower shell 3, thereby forming a connecting channel between the planetary gear cover plate 12 and the lower shell 3, and a screw 19 is screwed into the threaded groove 18 through the connecting hole 17. By utilizing the axial force generated by the screwing, the planetary gear cover plate 12 is tightly fixed on the lower shell 3. This design utilizes the screw fastening principle commonly used in mechanical connection, and ensures that the relative position between the planetary gear cover plate 12 and the lower shell 3 is fixed, thereby providing a stable support structure for the internal transmission components such as the double planetary gear 7.

[0048] In the embodiment of the utility model, the rotating shaft 6 of the driving motor 2 penetrates into the installation space 5 along the axial direction of the lower shell 3, so that the rotation center line of the rotating shaft 6 of the driving motor 2 coincides with the extension line of the rotation center line of the output shaft 10.

[0049] By making the rotating shaft 6 of the driving motor 2 penetrate into the installation space 5 along the axial direction of the lower shell 3, the rotation center line of the rotating shaft 6 of the driving motor 2 coincides with the extension line of the rotation center line of the output shaft 10. This is based on the principle of coaxial transmission in mechanical transmission. Coaxial arrangement can ensure that the power is transmitted in a straight line during transmission, avoid radial force and torque deviation caused by inconsistent axis, and ensure the stability of the transmission system. At the same time, in the limited installation space 5, this arrangement makes the arrangement of each component more regular and orderly, fully utilizes the space resources, and provides protection for the compactness of the overall structure.

[0050] In the embodiment of the utility model, the driving gear 8 and the driven gear of the double planetary gear 7 are coaxially arranged and are an integral structure.

[0051] By coaxially arranging the driving gear 8 and the driven gear of the double planetary gear 7 and making them an integral structure, the integrated manufacturing process is utilized, and the connection between components is reduced. This design can ensure that the relative position of the driving gear 8 and the driven gear is fixed and unchanged, ensure that they rotate synchronously during transmission, avoid transmission errors caused by different shafts or assembly gaps, and based on the principle of coaxial transmission, the power transmission from the driving gear 8 to the driven gear is more direct, which can effectively maintain the stability and accuracy of the transmission system.

[0052] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model.

Claims

1. A compact deceleration power unit, characterized by, The application relates to a driving motor, which comprises a shell and a driving motor arranged in the shell, wherein the shell comprises a lower shell and an upper shell arranged on the lower shell, the upper shell is arranged on the lower shell to form an installation space in the interior, and the driving motor is arranged at the bottom of the lower shell and penetrates into the installation space along the axial direction. A plurality of double planetary gears are rotatably connected to the lower shell and located in the installation space, the double planetary gears are arranged in an annular array with the rotating shaft of the driving motor as the array center, and the driving gears of the double planetary gears are respectively engaged with the rotating shaft of the driving motor. An inner ring gear is arranged on the upper shell and located in the installation space, an output shaft is fixedly connected to the inner ring gear along the axial direction, and the output shaft penetrates to the outside of the upper shell, wherein the driven gears of the double planetary gears are respectively engaged with the inner ring gear.

2. A compact reduction power unit according to claim 1, characterized in that A planetary tooth cover plate is fixedly connected to the lower shell and located in the installation space, so that the installation space is divided into an upper space and a lower space by the planetary tooth cover plate. The driving gears of the double planetary gears are matched with the rotating shaft of the driving motor in the lower space. The driven gears of the double planetary gears are matched with the inner ring gear in the upper space.

3. A compact reduction power unit according to claim 2, characterized in that A plurality of rotating shaft grooves are arranged on the end surface of the planetary tooth cover plate, and the rotating shaft grooves and the double planetary gears are in one-to-one correspondence. An oil-containing copper sleeve is arranged in the rotating shaft groove and sleeved on the double planetary gear, and the oil-containing copper sleeve is located between the driving gear and the driven gear of the double planetary gear.

4. A compact reduction power unit according to claim 3, characterized in that A plurality of connecting holes are arranged on the end surface of the planetary tooth cover plate, a plurality of threaded grooves are arranged on the end surface of the lower shell, and the threaded grooves and the connecting holes are in one-to-one correspondence. A screw part is connected between the threaded groove and the corresponding connecting hole.

5. A compactly dimensioned reduction power component according to claim 1, characterized in that The rotating shaft of the driving motor penetrates into the installation space along the axial direction of the lower shell, so that the rotation center line of the rotating shaft of the driving motor coincides with the extension line of the rotation center line of the output shaft.

6. A compact reduction power unit according to any one of claims 1-5, characterized in that The driving gear and the driven gear of the double planetary gear are coaxially arranged, and the driving gear and the driven gear are an integral structure.

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