CN111853169A - Compact speed reducer - Google Patents
Compact speed reducer Download PDFInfo
- Publication number
- CN111853169A CN111853169A CN202010951774.8A CN202010951774A CN111853169A CN 111853169 A CN111853169 A CN 111853169A CN 202010951774 A CN202010951774 A CN 202010951774A CN 111853169 A CN111853169 A CN 111853169A
- Authority
- CN
- China
- Prior art keywords
- planet
- speed reducer
- gear
- planet carrier
- left end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/325—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear comprising a carrier with pins guiding at least one orbital gear with circular holes
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/327—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear with orbital gear sets comprising an internally toothed ring gear
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention provides a compact speed reducer, which comprises a motor shell, a sun gear, an inner gear ring, a flange, a planet carrier, a planet gear, a friction pad and an output shaft, wherein the sun gear is rotatably arranged in the motor shell, the left end of the sun gear is provided with a mounting hole, the periphery of the right end is provided with a first tooth part, the left end of the inner gear ring is fixedly connected with the right end of the motor shell, the right end is fixedly connected with the left end of the flange, the inner side of the inner gear ring is provided with a second tooth part, the planet carrier is rotatably arranged on the inner side of the flange, the planet gear is respectively meshed with the first tooth part and the second tooth part, the friction pad is fixed on the right side in the motor shell, the left end of the planet gear is in top contact with the: when guaranteeing that the speed reducer can smoothly move, reduced the volume of speed reducer, not only conveniently carry, reduced manufacturing cost moreover.
Description
Technical Field
The invention relates to the field of planetary reducer structures, in particular to a compact reducer.
Background
The planetary reducer is an industrial product with wide application, and can reduce the rotating speed of a motor and increase the output torque. The planetary reducer can be used as a matched component for industries such as hoisting, digging, transportation, building and the like. The speed reducing mechanism generally comprises a power input shaft, a gear transmission mechanism and a power output shaft, wherein the power input shaft and the power output shaft are connected through the gear transmission mechanism, the speed difference between the power input shaft and the power output shaft is changed, and speed reduction is realized.
Disclosure of Invention
An object of the present invention is to provide a compact reduction gear to solve the problems mentioned in the background art.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a compact speed reducer, including motor housing, the sun gear, the ring gear, the flange, the planet carrier, the planet wheel, friction pad and output shaft, the sun gear is rotationally installed in motor housing, the sun gear left end is equipped with the mounting hole, the right-hand member periphery is equipped with first tooth portion, the ring gear left end is fixed connection with motor housing right-hand member, the right-hand member is fixed connection with the flange left end, the ring gear inboard is equipped with second tooth portion, the planet carrier is rotationally installed at the flange inboard, the planet wheel meshes with first tooth portion, second tooth portion respectively, the friction pad is fixed at motor housing inside right side, the planet wheel left end touches with the friction pad top, the right-hand member is rotationally connected with the planet carrier left end, the output shaft is fixed.
Further description of the invention: the planet gears are provided with three groups and are evenly distributed on the inner side of the inner gear ring.
Further description of the invention: the planet wheel is connected with the planet carrier through a needle bearing and a pin shaft, the right end of the pin shaft is fixed on the planet carrier, and the left end of the pin shaft penetrates through the middle part of the planet wheel and is connected with the planet wheel through the needle bearing.
Further description of the invention: the sun gear is connected with the motor shell through a first ball bearing, and the first ball bearing is arranged in two groups along the left and right directions.
Further description of the invention: the planet carrier passes through second ball bearing and flange joint, and second ball bearing sets up two sets ofly along left right direction.
Further description of the invention: the motor shell, the inner gear ring and the flange are fixedly connected through the inner hexagon screws.
The invention has the beneficial effects that: set up the mounting hole at the sun gear left end, can directly be connected with power input shaft, make power input shaft direct drive sun gear rotatory, set up the friction pad simultaneously in motor housing inside, reduce the friction between planet wheel and the motor housing, make the planet wheel smoothly move, the inside compactness of arranging of speed reducer has reduced the volume of speed reducer like this when guaranteeing that the speed reducer can smoothly move, not only conveniently carries, has reduced manufacturing cost moreover.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
description of reference numerals:
1. a motor housing; 2. a sun gear; 21. mounting holes; 22. a first tooth portion; 3. an inner gear ring; 31. a second tooth portion; 4. a flange; 5. a planet carrier; 6. a planet wheel; 7. a friction pad; 8. an output shaft; 91. a needle bearing; 92. a pin shaft; 93. a first ball bearing; 94. a second ball bearing; 95. and a socket head cap screw.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1, a compact speed reducer includes a motor housing 1, a sun gear 2, an inner gear ring 3, a flange 4, a planet carrier 5, a planet gear 6, a friction pad 7, and an output shaft 8.
Sun gear 2 rotationally installs in motor housing 1, and 2 left ends of sun gear are equipped with mounting hole 21, and the right-hand member periphery is equipped with first tooth portion 22, and mounting hole 21 is used for being connected with power input shaft, makes power input shaft can directly drive sun gear 2 rotate, and sun gear 2 is connected with motor housing 1 through first ball bearing 93, and first ball bearing 93 sets up two sets ofly along left right direction, and the atress is even when making sun gear 2 rotatory, and is rotatory more smoothly.
The left end of the inner gear ring 3 is fixedly connected with the right end of the motor shell 1, the right end of the inner gear ring is fixedly connected with the left end of the flange 4, in the design, the motor shell 1, the inner gear ring 3 and the flange 4 are fixedly connected through the hexagon socket head cap screws 95, and the hexagon socket head cap screws 95 are smaller than the circular screws in radial length, so that the volume of the speed reducer in the radial direction can be reduced.
The planet carrier 5 is rotatably arranged on the inner side of the flange 4, the planet carrier 5 is connected with the flange 4 through the second ball bearing 94, and the second ball bearing 94 is arranged in two groups along the left and right directions, so that the stress is uniform when the planet carrier 5 rotates, and the rotation is smoother.
The inner side of the inner gear ring 3 is provided with a second tooth portion 31, the planet wheel 6 is respectively meshed with the first tooth portion 22 and the second tooth portion 31, the friction pad 7 is fixed on the right side inside the motor shell 1, the left end of the planet wheel 6 is in top contact with the friction pad 7, the right end of the planet wheel 6 is rotatably connected with the left end of the planet carrier 5, the surface of the friction pad 7 is smooth, friction between the friction pad and the planet wheel 6 is reduced, and the planet wheel 6 can smoothly run.
The output shaft 8 is fixed at the right end of the planet carrier 5, and the rotating shafts of the sun gear 2, the planet carrier 5 and the output shaft 8 are coaxial.
The working principle of the embodiment is as follows:
when the speed reducer of the design is used, the power input shaft is inserted into the mounting hole 21 on the left side of the sun gear 2, the power output shaft 8 is started, the sun gear 2 is directly driven to rotate, and then the planet gear 6, the planet carrier 5 and the output shaft 8 are driven to rotate, so that the rotating speed of the output shaft 8 is reduced.
The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (6)
1. A compact speed reducer characterized in that: comprises a motor shell, a sun gear, an inner gear ring, a flange, a planet carrier, a planet gear, a friction pad and an output shaft, the sun wheel is rotatably arranged in the motor shell, the left end of the sun wheel is provided with a mounting hole, the periphery of the right end of the sun wheel is provided with a first tooth part, the left end of the inner gear ring is fixedly connected with the right end of the motor shell, the right end of the inner gear ring is fixedly connected with the left end of the flange, the inner side of the inner gear ring is provided with a second tooth part, the planet carrier is rotatably arranged on the inner side of the flange, the planet wheel is respectively meshed with the first tooth part and the second tooth part, the friction pad is fixed on the right side in the motor shell, the left end of the planet gear is contacted with the friction pad, the right end is rotatablely connected with the left end of the planet carrier, the output shaft is fixed at the right end of the planet carrier, and the rotating shafts of the sun gear, the planet carrier and the output shaft are coaxial.
2. A compact speed reducer according to claim 1, characterized in that: the planet gears are provided with three groups and are uniformly distributed on the inner side of the inner gear ring.
3. A compact speed reducer according to claim 1, characterized in that: the planet gear is connected with the planet carrier through a needle bearing and a pin shaft, the right end of the pin shaft is fixed on the planet carrier, and the left end of the pin shaft penetrates through the middle of the planet gear and is connected with the planet gear through the needle bearing.
4. A compact speed reducer according to claim 1, characterized in that: the sun gear is connected with the motor shell through a first ball bearing, and the first ball bearing is arranged in two groups along the left-right direction.
5. A compact speed reducer according to claim 1, characterized in that: the planet carrier pass through the second ball bearing with flange joint, the second ball bearing sets up two sets ofly along left right direction.
6. A compact speed reducer according to claim 1, characterized in that: the motor shell, the inner gear ring and the flange are fixedly connected through inner hexagon screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010951774.8A CN111853169A (en) | 2020-09-11 | 2020-09-11 | Compact speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010951774.8A CN111853169A (en) | 2020-09-11 | 2020-09-11 | Compact speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111853169A true CN111853169A (en) | 2020-10-30 |
Family
ID=72968406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010951774.8A Pending CN111853169A (en) | 2020-09-11 | 2020-09-11 | Compact speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111853169A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113422469A (en) * | 2021-08-25 | 2021-09-21 | 默拓（苏州）机电科技有限公司 | Motor device |
-
2020
- 2020-09-11 CN CN202010951774.8A patent/CN111853169A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113422469A (en) * | 2021-08-25 | 2021-09-21 | 默拓（苏州）机电科技有限公司 | Motor device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No. 5, Lingang Road, Wangniudun, Dongguan, Guangdong 523000 Applicant after: DONGGUAN ZHUOLAN AUTOMATION EQUIPMENT Co.,Ltd. Address before: No.17 Zhifu Road, Mowu community, Wanjiang District, Dongguan City, Guangdong Province 523000 Applicant before: DONGGUAN ZHUOLAN AUTOMATION EQUIPMENT Co.,Ltd. |