CN111536201A - Differential gear large reduction ratio speed reducing motor - Google Patents
Differential gear large reduction ratio speed reducing motor Download PDFInfo
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- CN111536201A CN111536201A CN202010497828.8A CN202010497828A CN111536201A CN 111536201 A CN111536201 A CN 111536201A CN 202010497828 A CN202010497828 A CN 202010497828A CN 111536201 A CN111536201 A CN 111536201A
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- gear
- output
- end side
- ring
- speed reduction
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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
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
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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
- H02K7/08—Structural association 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
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Abstract
The invention discloses a differential gear large-reduction-ratio speed reducing motor, and relates to the field of speed reducing motor devices. In the invention: a strong needle roller bearing is arranged on the outer ring side of the eccentric shaft sleeve; a duplex outer gear is arranged on the outer ring side of the strong needle bearing; an inner port gear and an outer port gear are arranged on the duplex outer gear; one side of the eccentric shaft sleeve/the strong needle bearing is provided with an outer end side balance block; one side of the eccentric shaft sleeve/the strong needle bearing is provided with an inner end side balance block; a fixed inner gear ring fixedly installed is arranged on a panel at the end side of the driving motor body; the inner port gear of the duplex outer gear is arranged on the inner side gear port of the fixed inner gear ring; a speed reduction output shaft is fixedly arranged on one side of the outer output end gear; the periphery of the fixed inner gear ring and the output inner gear ring is provided with a differential gear speed reduction shell body arranged on the end side of the driving motor body. The invention effectively solves the problems of larger installation space, insufficient output torque, lower transmission precision and the like of the conventional common parallel shaft gear reduction motor.
Description
Technical Field
The invention relates to the field of speed reducing motor devices, in particular to a speed reducing motor with differential teeth and a large speed reducing ratio.
Background
The speed reducer is an independent component consisting of gear transmission, worm transmission and gear-worm transmission which are enclosed in a rigid shell, and is commonly used as a speed reduction transmission device between a prime mover and a working machine. The function of matching the rotation speed and transmitting the torque between the prime mover and the working machine or the actuating mechanism is very extensive in modern machinery. However, the conventional common parallel shaft gear reduction motor (as shown in fig. 13 in the drawings of this specification) has the following problems in the actual installation and application processes:
1. the eccentric output is not beneficial to installation, and larger space is needed;
2. the output torque is not large due to the limitation of the parallel shaft gear transmission principle and space;
3. the axial dimension is very large when the reduction ratio is large;
4. more parts are needed to meet the requirement of large reduction ratio;
5. when the reduction ratio exceeds 3000, an intermediate gear box is added, so that the axial size and parts are more;
6. because the number of gear stages is large, the transmission precision is low and the return clearance is large, the transmission mechanism can only be used in common transmission occasions.
Disclosure of Invention
The invention aims to solve the technical problem of providing a differential gear large reduction ratio speed reducing motor, thereby solving the problems of larger installation space, insufficient output torque, lower transmission precision and the like of the conventional common parallel shaft gear speed reducing motor.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention provides a differential gear large reduction ratio speed reducing motor which comprises a driving motor body, wherein an eccentric shaft sleeve is arranged on an output shaft rod of the driving motor body; a strong needle roller bearing is arranged on the outer ring side of the eccentric shaft sleeve; a duplex outer gear is arranged on the outer ring side of the strong needle bearing; an inner port gear and an outer port gear are arranged on the duplex outer gear; one side of the eccentric shaft sleeve/the strong needle bearing is provided with an outer end side balance block; one side of the eccentric shaft sleeve/the strong needle bearing is provided with an inner end side balance block.
A fixed inner gear ring fixedly installed is arranged on a panel at the end side of the driving motor body; the inner port gear of the duplex outer gear is arranged on the inner side gear port of the fixed inner gear ring; an output inner gear ring is arranged on the side of an outer opening gear of the duplex outer gear; an outer output end gear is arranged in the output inner gear ring in a matched manner; a speed reduction output shaft is fixedly arranged on one side of the outer output end gear; the periphery of the fixed inner gear ring and the output inner gear ring is provided with a differential gear speed reduction outer shell body arranged on the end side of the driving motor body; the speed reduction output shaft movably penetrates through the differential gear speed reduction outer shell.
As a preferable technical solution of the present invention, a gear radius of the internal port gear of the double external gear is larger than a gear radius of the external port gear of the double external gear.
As a preferred technical scheme of the invention, the plate size of the balance weight at the inner end side is larger than that of the balance weight at the outer end side; the plate gravity center position of the inner end side balance block/the outer end side balance block is the same as the axis deviation direction of the eccentric shaft sleeve.
As a preferred technical scheme of the invention, a first inner side supporting bearing and a first outer side supporting bearing are sleeved on the speed reduction output shaft; a first hole clamping plate positioned between the first inner side supporting bearing and the first outer side supporting bearing is sleeved on the speed reduction output shaft; the speed reduction output shaft is provided with an end side oil seal body which is arranged on the output end side of the differential gear speed reduction outer shell in a matching way; the differential gear speed reduction outer shell is provided with a shell end side oil seal matching groove for matching with the end side oil seal body; an output gear ring mounting groove is formed in the differential gear speed reduction shell; and a fixed gear ring mounting groove is formed in the differential gear speed reduction shell.
As a preferred technical scheme of the invention, an inner shaft end side bearing is arranged at the end side of an output shaft rod of the driving motor body; one side of the outer output end gear is provided with a shaft end bearing matching groove matched with the inner shaft end side bearing.
As a preferred technical scheme of the invention, an inner side pore plate clamping notch and an outer side pore plate clamping notch are formed on an inner side tooth mouth of the output inner gear ring; a second inner side pore plate is clamped and installed on the inner side pore plate clamping notch of the output inner gear ring; the outer hole plate clamping notch of the output inner gear ring is clamped and arranged on the second outer hole plate; the gear at the outer output end is clamped and arranged between a second inner side hole plate and a second outer side hole plate of the output inner gear ring; the inner side tooth port of the output inner gear ring is divided into a double-wheel auxiliary side matching tooth port and an outer transmission matching tooth port; the external transmission matching tooth opening is positioned between the inner side pore plate clamping slot and the outer side pore plate clamping slot; the outer port gear of the duplex outer gear is installed on the matching tooth opening of the double-wheel pair in a matching way.
Compared with the prior art, the invention has the beneficial effects that:
1. the output shaft lever of the original drive motor body and the speed reduction output shaft are concentrically output, so that the installation is more facilitated, and the installation space of the internal shaft lever is saved;
2. the invention adopts the internal gearing transmission by arranging the rotation driving mode of the fixed inner gear ring, the duplex outer gear and the output inner gear ring, and has more meshing teeth, so that the output range of the output torque is larger;
3. compared with the existing common parallel shaft gear reduction motor, the gear box number is reduced, the axial size is smaller, and the number of internal parts is reduced;
4. the invention has large reduction ratio range, one grade is 50:1 to 5000:1, and the reduction ratio is larger after combination;
6. according to the invention, the eccentric shaft sleeve is arranged on the motor output shaft rod, the balance blocks are arranged on two sides of the eccentric shaft sleeve in a matching manner, the periphery of the duplex external gear is limited by the fixed inner gear ring, the duplex external gear is ensured to have higher transmission precision and return clearance in the operation process, and the motor can be used in precision transmission occasions in a matching manner with a precision control motor.
Drawings
FIG. 1 is a schematic view of the overall appearance structure of the differential gear large reduction ratio speed reduction motor of the present invention;
FIG. 2 is a schematic diagram of the internal cross-sectional structure of the differential gear large reduction ratio speed reduction motor of the present invention;
FIG. 3 is a schematic diagram of the structure of the differential reduction outer housing separation according to the present invention;
FIG. 4 is a schematic diagram of the internal conductive assembly of the present invention;
FIG. 5 is a schematic structural diagram of the differential reduction casing according to the present invention;
FIG. 6 is a schematic structural view of the internal gear of the present invention after assembly (with the first inner support bearing and the first outer support bearing separated);
FIG. 7 is a schematic view of the present invention with the outer output end gear disengaged;
FIG. 8 is a schematic structural view of a fixed ring gear, an output ring gear and a duplex outer gear in the present invention;
fig. 9 is a schematic structural view of the other side (inner end side weight) of the double external gear according to the present invention;
FIG. 10 is a schematic view of the construction of the outer output end gear of the present invention;
fig. 11 is a schematic structural view of the second inner hole plate and the second outer hole plate installed in the output ring gear in the present invention;
fig. 12 is a schematic structural view of an output ring gear in the present invention;
FIG. 13 is a schematic structural view showing the external appearance of a conventional parallel-axis gear reduction motor according to the present invention;
wherein: 1-fixing the inner gear ring; 2-output inner gear ring; 3-duplex external gears; 4-strong needle roller bearing; 5-eccentric shaft sleeve; 6-outer end side balance block; 7-differential gear reduction outer housing; 8-a reduction output shaft; 9-driving the motor body; 10-housing end side oil seal mating groove; 11-a first inboard support bearing; 12-a first outboard support bearing; 13-a first hole card; 14-end side oil seal body; 15-output gear ring mounting groove; 16-fixing a gear ring mounting groove; 17-outer output end gear; 18-a second inside orifice plate; 19-a second outer orifice plate; 20-inner shaft end side bearing; 21-inner end side balance weight; 22-shaft end bearing mating groove; 23-clamping the inner side hole plate with the notch; 24-clamping the notch groove by the outer side pore plate; 25-the auxiliary side of the double wheel is matched with the tooth mouth; 26-external transmission matching with the tooth mouth.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention relates to a differential gear large reduction ratio speed reducing motor, which comprises a driving motor body 9, wherein an eccentric shaft sleeve 5 is arranged on an output shaft rod of the driving motor body 9; a strong needle bearing 4 is arranged on the outer ring side of the eccentric shaft sleeve 5; a duplex outer gear 3 is arranged on the outer ring side of the strong needle bearing 4; an inner port gear 27 and an outer port gear 28 are arranged on the duplex outer gear 3; one side of the eccentric shaft sleeve 5/the strong needle bearing 4 is provided with an outer end side balance block 6; one side of the eccentric bushing 5/the strong needle bearing 4 is provided with an inner end side balance block 21.
A fixed inner gear ring 1 fixedly installed is arranged on a panel at the end side of the driving motor body 9; the internal gear 27 of the external duplex gear 3 is mounted on the internal gear mouth of the fixed ring gear 1; an output inner gear ring 2 is arranged on the side of an outer port gear 28 of the duplex outer gear 3; an outer output end gear 17 is arranged in the output inner gear ring 2 in a matching way; a speed reduction output shaft 8 is fixedly arranged on one side of the outer output end gear 17; the periphery of the fixed inner gear ring 1 and the output inner gear ring 2 is provided with a differential gear speed reduction outer shell 7 arranged at the end side of the driving motor body 9; the speed reduction output shaft 8 movably penetrates through the differential gear speed reduction outer shell 7.
Further, the gear radius of the internal gear 27 of the double external gear 3 is larger than the gear radius of the external gear 28 of the double external gear 3.
Further, the plate size of the inner end side balance weight 21 is larger than that of the outer end side balance weight 6; the plate center of gravity position of the inner end side balance weight 21/the outer end side balance weight 6 is communicated with the axis offset direction of the eccentric shaft sleeve 5.
Further, a first inner side supporting bearing 11 and a first outer side supporting bearing 12 are sleeved on the speed reduction output shaft 8; a first hole clamping plate 13 positioned between the first inner side supporting bearing 11 and the first outer side supporting bearing 12 is sleeved on the speed reduction output shaft 8; an end side oil seal body 14 which is arranged on the output end side of the differential gear speed reduction outer shell 7 in a matched mode is arranged on the speed reduction output shaft 8; a shell end side oil seal matching groove 10 for matching and installing an end side oil seal body 14 is formed in the differential gear speed reduction shell body 7; an output gear ring mounting groove 15 is formed in the differential gear speed reduction outer shell 7; and a fixed gear ring mounting groove 16 is formed in the differential gear speed reduction outer shell 7.
Further, an inner shaft end side bearing 20 is installed on the output shaft end side of the driving motor body 9; one side of the outer output end gear 17 is opened with a shaft end bearing fitting groove 22 fitted with the inner shaft end side bearing 20.
Further, an inner side pore plate clamping notch 23 and an outer side pore plate clamping notch 24 are formed in the inner side tooth mouth of the output inner gear ring 2; a second inner side pore plate 18 is clamped and installed on the inner side pore plate clamping notch 23 of the output inner gear ring 2; the outer hole plate clamping notch 24 of the output ring gear 2 is clamped and arranged on the second outer hole plate 19; the gear 17 at the outer output end is clamped and arranged between a second inner side hole plate 18 and a second outer side hole plate 19 of the output annular gear; the inner side tooth openings of the output inner gear ring 2 are divided into a double-wheel auxiliary side matching tooth opening 25 and an outer transmission matching tooth opening 26; the external transmission matching tooth opening 25 is positioned between the inner side pore plate clamping notch 23 and the outer side pore plate clamping notch 24; the external gear 28 of the external duplex gear 3 is fitted to the double-wheel-pair-side fitting tooth mouth 26.
In the present invention:
the balance weight ratio of the outer end side balance block 6 and the inner end side balance block 21 is different because the inner side gear and the outer side gear of the dual external gear 3 have different specific weights, and the inner port gear 27 of the dual external gear 3 has a large specific weight, so that the inner end side balance block 21 of a large mass block is required to assist in adjusting the balance degree; the external port gear 28 of the duplex external gear 3 has a small specific gravity, and the external end side balance block 6 of the small mass block is adopted to assist in adjusting the balance degree.
Compared with the existing common parallel shaft gear reduction motor, the differential gear large reduction ratio reduction motor structure of the invention has the following characteristics:
1. concentric output is more beneficial to installation and saves space;
2. internal gearing transmission is adopted, so that the number of meshing teeth is large, and larger output torque is achieved;
3. a smaller axial dimension;
4. less parts;
5. the reduction ratio range is large, namely, the reduction ratio ranges from 50:1 to 5000:1 in one stage, and the reduction ratio ranges from larger to larger after combination;
6. the transmission precision and the return clearance are higher, and the motor can be used for precise transmission occasions in cooperation with a precise control motor.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a big reduction ratio gear motor of difference tooth which characterized in that:
the device comprises a driving motor body (9), wherein an eccentric shaft sleeve (5) is arranged on an output shaft rod of the driving motor body (9);
a strong needle roller bearing (4) is arranged on the outer ring side of the eccentric shaft sleeve (5);
a duplex outer gear (3) is arranged on the outer ring side of the powerful needle roller bearing (4);
an inner opening gear (27) and an outer opening gear (28) are arranged on the duplex outer gear (3);
one side of the eccentric shaft sleeve (5)/the powerful needle roller bearing (4) is provided with an outer end side balance block (6);
one side of the eccentric shaft sleeve (5)/the powerful needle roller bearing (4) is provided with an inner end side balance block (21);
a fixed inner gear ring (1) is fixedly arranged on a panel at the end side of the driving motor body (9);
an inner opening gear (27) of the duplex external gear (3) is arranged on an inner side tooth opening of the fixed inner gear ring (1);
an output inner gear ring (2) is arranged on the side of an outer opening gear (28) of the duplex outer gear (3);
an outer output end gear (17) is arranged in the output inner gear ring (2) in a matched manner;
a speed reduction output shaft (8) is fixedly arranged on one side of the outer output end gear (17);
the peripheries of the fixed inner gear ring (1) and the output inner gear ring (2) are provided with differential gear speed reduction outer shells (7) arranged at the end sides of the driving motor bodies (9);
the speed reduction output shaft (8) movably penetrates through the differential gear speed reduction outer shell (7).
2. A differential gear large reduction ratio reduction motor according to claim 1, wherein:
the gear radius of the inner opening gear (27) of the duplex external gear (3) is larger than that of the outer opening gear (28) of the duplex external gear (3).
3. The differential gear large reduction ratio reduction motor according to claim 1, wherein:
the plate size of the inner end side balance block (21) is larger than that of the outer end side balance block (6);
the plate center of gravity of the inner end side balance block (21)/the outer end side balance block (6) is communicated with the axis offset direction of the eccentric shaft sleeve (5).
4. The differential gear large reduction ratio reduction motor according to claim 1, wherein:
a first inner side supporting bearing (11) and a first outer side supporting bearing (12) are sleeved on the speed reduction output shaft (8);
a first hole clamping plate (13) positioned between a first inner side supporting bearing (11) and a first outer side supporting bearing (12) is sleeved on the speed reduction output shaft (8);
an end side oil seal body (14) which is arranged on the output end side of the differential gear speed reduction outer shell (7) in a matched mode is arranged on the speed reduction output shaft (8);
a shell end side oil seal matching groove (10) used for being matched with and provided with an end side oil seal body (14) is formed in the differential gear speed reduction shell (7);
an output gear ring mounting groove (15) is formed in the differential gear speed reduction outer shell (7);
and a fixed gear ring mounting groove (16) is formed in the differential gear speed reduction shell (7).
5. The differential gear large reduction ratio reduction motor according to claim 1, wherein:
an inner shaft end side bearing (20) is arranged on the output shaft end side of the driving motor body (9);
one side of the outer output end gear (17) is provided with a shaft end bearing matching groove (22) matched with the inner shaft end side bearing (20).
6. The differential gear large reduction ratio reduction motor according to claim 1, wherein:
an inner side pore plate clamping notch (23) and an outer side pore plate clamping notch (24) are formed in an inner side tooth opening of the output inner gear ring (2);
a second inner side pore plate (18) is clamped and installed on the inner side pore plate clamping notch (23) of the output inner gear ring (2);
a second outer side pore plate (19) is clamped and arranged on the outer side pore plate clamping notch (24) of the output inner gear ring (2);
the outer output end gear (17) is clamped and arranged between a second inner side pore plate (18) and a second outer side pore plate (19) of the output annular gear;
the inner side tooth openings of the output inner gear ring (2) are divided into a double-wheel auxiliary side matching tooth opening (25) and an outer transmission matching tooth opening (26);
the external transmission matching tooth opening (25) is positioned between the inner side pore plate clamping notch groove (23) and the outer side pore plate clamping notch groove (24);
and an outer opening gear (28) of the duplex outer gear (3) is arranged on a matching tooth opening (26) at the double-wheel pair side in a matching way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010497828.8A CN111536201A (en) | 2020-06-04 | 2020-06-04 | Differential gear large reduction ratio speed reducing motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010497828.8A CN111536201A (en) | 2020-06-04 | 2020-06-04 | Differential gear large reduction ratio speed reducing motor |
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| Publication Number | Publication Date |
|---|---|
| CN111536201A true CN111536201A (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010497828.8A Pending CN111536201A (en) | 2020-06-04 | 2020-06-04 | Differential gear large reduction ratio speed reducing motor |
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| Country | Link |
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| CN (1) | CN111536201A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431876A (en) * | 2021-06-28 | 2021-09-24 | 深圳市泉锲科技有限公司 | Speed reducer with few differential teeth |
-
2020
- 2020-06-04 CN CN202010497828.8A patent/CN111536201A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431876A (en) * | 2021-06-28 | 2021-09-24 | 深圳市泉锲科技有限公司 | Speed reducer with few differential teeth |
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