CN111089141A - Roller worm speed reducer - Google Patents
Roller worm speed reducer Download PDFInfo
- Publication number
- CN111089141A CN111089141A CN201811248343.4A CN201811248343A CN111089141A CN 111089141 A CN111089141 A CN 111089141A CN 201811248343 A CN201811248343 A CN 201811248343A CN 111089141 A CN111089141 A CN 111089141A
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- worm
- machine shell
- roller
- worms
- cover plate
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
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
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
- F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
- F16H1/163—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel with balls between the co-operating parts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a roller worm speed reducer which comprises a machine shell, first worms, first rotating discs, second worms and second rotating discs, wherein the first worms are symmetrically arranged on two sides in the machine shell relative to the central axis of the machine shell, the first rotating discs are connected between the two first worms in a meshed mode, one ends, close to a first cover plate, of the two first worms are coaxially connected with the second rotating discs, the second worms are connected between the two second rotating discs in a meshed mode, and the second worms are perpendicular to the plane where the first rotating discs are located. The dual-worm simultaneously and respectively pushes the followers on the respective side, so that the transmission strength and the rigidity are greatly improved; the structure is compact and reasonable, and the volume is reduced; meanwhile, power is transmitted by two-stage speed change, the number of rollers is reduced, the worm abrasion probability is reduced, the service life is prolonged, and the back clearance precision retentivity of the speed reducer is multiplied.
Description
Technical Field
The invention relates to the field of speed reducers, in particular to a roller worm speed reducer.
Background
A worm gear reducer is a power transmission mechanism that obtains a large torque by reducing the number of revolutions of a motor (motor) to a desired number of revolutions using a speed converter of a gear. In the mechanism for transmitting power and motion, the application range of the speed reducer is quite wide, and the speed reducer can be seen in the transmission systems of various machines. The reducer has the functions of reducing speed and increasing torque, so that the reducer is widely applied to speed and torque conversion equipment. The roller worm speed reducer utilizes the operating principle of worm gear speed reducer, replaces the worm type tooth of worm wheel with the follower, and the speed reduction ratio is exactly the quantity ratio of worm tooth number (commonly called first number) and the follower on the carousel, and its main drive structure is: the worm, the turntable and the plurality of following rollers are uniformly distributed on the turntable around a circle. However, the existing roller turbine speed reducer has a plurality of defects:
1. too bulky: if the reduction ratio is 1:50 and the number of the worm teeth is 1, 50 worm teeth are uniformly distributed along with the driving device in a circle, the volume is quite large, and the worm gear driving device cannot be used on mobile equipment, particularly a trolley and a mechanical arm, due to heavy size;
2. insufficient transmission strength and rigidity: the more followers can be pushed only by one worm, and the transmission strength and the rigidity are not enough;
3. the service life of the worm is short: the worm teeth of the speed reducer are in rolling friction with each following roller on the turntable once per revolution, if the reduction ratio is 1:100, the worm and the following rollers are in friction for 100 times per revolution, so the worm is easy to damage;
4. the precision retention time of the back clearance of the worm is short: because the worm has more contact chances with the follower roller and is easy to wear, the backlash precision of the speed reducer can be continuously reduced.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide a roller worm speed reducer, which is used to solve the problems of the prior art, such as the turbine speed reducer is too large in size, insufficient in transmission strength, short in worm service life, and the backlash precision is continuously reduced.
In order to achieve the above and other related objects, the present invention provides a roller worm speed reducer, including a casing, a first worm, a first turntable, a second worm and a second turntable, wherein the first worm, the first turntable, the second worm and the second turntable are respectively installed in corresponding installation grooves inside the casing, and a bottom cover is installed at the bottom of the casing through a screw;
the first worms are symmetrically arranged on two sides in the shell about a central axis of the shell, one end of each first worm is connected with the inner wall of the shell through a bearing A, the other end of each first worm is arranged on a first cover plate through a bearing B, the first rotating disc is connected between the two first worms in a meshing manner, the first rotating disc is connected with the inner wall of the shell through a bearing C, and one side of the first rotating disc is arranged on a second cover plate;
two the equal coaxial coupling of one end that first worm is close to first apron has the second carousel, the second worm meshing connect in two between the second carousel, the second worm perpendicular to the plane at first carousel place, the second worm is connected with the casing inner wall through bearing D, the one end of second worm is installed on the motor cabinet.
Preferably, the outer sides of the first rotary table and the second rotary table are respectively and uniformly provided with threaded pin holes with different numbers, and rollers are respectively installed in the threaded pin holes
Preferably, an expansion sleeve is sleeved in the rotating hole of the second rotating disc and is kept fixed through an expansion sleeve screw.
Preferably, the first oil seal is sleeved at the joint of the outer side of the first rotary disc and the shell and the second cover plate.
Preferably, a second oil seal is sleeved at the joint of the outer side of the second worm and the motor base.
Preferably, an oil inlet screw hole is formed in the top of the machine shell, an oil outlet screw hole is formed in the bottom of the bottom cover, and plugs are plugged in the oil inlet screw hole and the oil outlet screw hole.
Preferably, a groove is formed in the lower end face of the casing, and a sealing ring is sleeved in the groove.
Preferably, the first cover plate, the second cover plate and the motor base are all fixed on the machine shell through screws.
Compared with the prior art, the invention has the beneficial effects that: the double worms are used for simultaneously and respectively pushing the followers on the respective sides, so that the transmission strength and the rigidity are greatly improved; the structure is compact and reasonable, the average volume is reduced by at least 4 to 5 times according to corresponding specifications of different reduction ratios, and the device can be widely applied to mobile equipment; meanwhile, two-stage speed change is utilized to transmit power, one-stage light load, heavy speed, two-stage heavy load and heavy load are achieved, the number of rollers is reduced, the worm abrasion probability is reduced, and the service life is prolonged; because the number of the follower rollers is reduced, the contact chance between the worm and the follower rollers is reduced, the abrasion probability is reduced, and in addition, the function distribution of the worm is respectively emphasized, the mechanical performance is improved, and the back clearance precision retentivity of the speed reducer is multiplied.
Drawings
The invention is described in further detail below with reference to specific embodiments and with reference to the following drawings.
Fig. 1 is a schematic structural diagram of a roller worm speed reducer provided by the invention;
FIG. 2 is a sectional view of the A-A plane of the roller worm reducer provided by the present invention;
fig. 3 is a top view of a roller worm reducer provided by the present invention;
FIG. 4 is a sectional view of the B-B plane of the roller worm reducer provided by the invention;
fig. 5 is a schematic perspective view of a roller worm speed reducer provided by the present invention;
FIG. 6 is a perspective view of a first worm of the present invention;
FIG. 7 is a cross-sectional view of a first worm of the present invention;
FIG. 8 is a perspective view of a second worm of the present invention;
FIG. 9 is a cross-sectional view of a second worm of the present invention;
FIG. 10 is a perspective view of a first turntable according to the present invention;
FIG. 11 is a cross-sectional view of a first turntable in the present invention;
fig. 12 is a perspective view of the housing of the present invention.
Wherein the reference numerals are specified as follows: 1-machine shell, 2-first worm, 3-first turntable, 4-second worm, 5-second turntable, 6-bottom cover, 7-bearing A, 8-bearing B, 9-first cover plate, 10-bearing C, 11-second cover plate, 12-bearing D, 13-motor base, 14-roller, 15-first oil seal, 16-second oil seal, 17-plug, 18-sealing ring and 19-expansion sleeve.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure herein.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used to limit the conditions and conditions of the present disclosure, so that the present disclosure is not technically significant, and any structural modifications, ratio changes or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Referring to fig. 1-12, the invention provides a roller worm speed reducer, which comprises a machine shell 1, a first worm 2, a first turntable 3, a second worm 4 and a second turntable 5, wherein the first worm 2, the first turntable 3, the second worm 4 and the second turntable 5 are respectively installed in corresponding installation grooves in the machine shell 1, and a bottom cover 6 is installed at the bottom of the machine shell 1 through screws;
the first worms 2 are symmetrically arranged at two sides in the machine shell 1 about the central axis of the machine shell 1, one end of each first worm 2 is connected with the inner wall of the machine shell 1 through a bearing A7, the other end of each first worm 2 is arranged on the first cover plate 9 through a bearing B8, a first rotary disc 3 is connected between the two first worms 2 in a meshing manner, the first rotary disc 3 is connected with the inner wall of the machine shell 1 through a bearing C10, and one side of the first rotary disc 3 is arranged on the second cover plate 11;
one ends of the two first worms 2 close to the first cover plate 9 are coaxially connected with a second turntable 5, the second worm 4 is meshed between the two second turntables 5, the second worm 4 is perpendicular to the plane of the first turntable 3, the second worm 4 is connected with the inner wall of the machine shell 1 through a bearing D12, and one end of the second worm 4 is installed on the motor base 13.
The outer sides of the first rotary disc 3 and the second rotary disc 5 are respectively and uniformly provided with threaded pin holes with different numbers, and rollers 14 are respectively arranged in the threaded pin holes.
An expansion sleeve 19 is sleeved in the rotary hole of the second rotary table 5 and is kept fixed through an expansion sleeve screw.
The joints of the outer side of the first rotary disc 3 and the shell 1 and the second cover plate 11 are all sleeved with first oil seals 15.
The joint of the outer side of the second worm 4 and the motor base 13 is sleeved with a second oil seal 16.
An oil inlet screw hole is formed in the top of the machine shell 1, an oil outlet screw hole is formed in the bottom of the bottom cover 6, and plugs 17 are plugged in the oil inlet screw hole and the oil outlet screw hole.
The lower end face of the machine shell 1 is provided with a groove, and a sealing ring 18 is sleeved in the groove.
The first cover plate 9, the second cover plate 11 and the motor base 13 are all fixed on the machine shell 1 through screws.
During specific implementation, an external power device of the motor base 13 provides power for the second worm 4, the second rotating disc 5 meshed with the second worm 4 starts to rotate while the second worm 4 rotates and transmits the power to the first worm 2, the first worm 2 rotates along with the second worm, the first rotating disc 3 meshed with the first worm 2 is connected with an output shaft, and the first rotating disc 3 rotating along with the first worm 2 drives the output shaft to operate, so that two-stage speed change power transmission is realized.
In conclusion, the double-worm simultaneously and respectively pushes the followers on the respective sides, so that the transmission strength and the rigidity are greatly improved; the structure is compact and reasonable, and the volume is reduced; meanwhile, power is transmitted by two-stage speed change, the number of rollers is reduced, the worm abrasion probability is reduced, the service life is prolonged, and the back clearance precision retentivity of the speed reducer is multiplied. Therefore, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. A roller worm speed reducer is characterized by comprising a machine shell (1), a first worm (2), a first turntable (3), a second worm (4) and a second turntable (5), wherein the first worm (2), the first turntable (3), the second worm (4) and the second turntable (5) are respectively installed in corresponding installation grooves in the machine shell (1), and a bottom cover (6) is installed at the bottom of the machine shell (1) through screws;
the first worms (2) are symmetrically arranged on two sides in the machine shell (1) about a central axis of the machine shell (1), one end of each first worm (2) is connected with the inner wall of the machine shell (1) through a bearing A (7), the other end of each first worm (2) is arranged on a first cover plate (9) through a bearing B (8), the first rotary plate (3) is connected between the two first worms (2) in a meshed mode, the first rotary plate (3) is connected with the inner wall of the machine shell (1) through a bearing C (10), and one side of the first rotary plate (3) is arranged on a second cover plate (11);
two the equal coaxial coupling of one end that first worm (2) are close to first apron (9) has second carousel (5), second worm (4) meshing connect in two between second carousel (5), second worm (4) perpendicular to the plane at first carousel (3) place, second worm (4) are connected with casing (1) inner wall through bearing D (12), the one end of second worm (4) is installed on motor cabinet (13).
2. The roller worm reducer according to claim 1, characterized in that: the outer sides of the first rotary table (3) and the second rotary table (5) are respectively and uniformly provided with threaded pin holes with different quantities, and rollers (14) are installed in the threaded pin holes.
3. The roller worm reducer according to claim 1, characterized in that: an expansion sleeve (19) is sleeved in a rotary hole of the second rotary table (5) and is kept fixed through an expansion sleeve screw.
4. The roller worm reducer according to claim 1, characterized in that: the outer side of the first rotary disc (3) is sleeved with a first oil seal (15) at the joint of the casing (1) and the second cover plate (11).
5. The roller worm reducer according to claim 1, characterized in that: and a second oil seal (16) is sleeved at the joint of the outer side of the second worm (4) and the motor base (13).
6. The roller worm reducer according to claim 1, characterized in that: the oil inlet screw hole is formed in the top of the machine shell (1), the oil outlet screw hole is formed in the bottom of the bottom cover (6), and plugs (17) are plugged in the oil inlet screw hole and the oil outlet screw hole.
7. The roller worm reducer according to claim 1, characterized in that: the lower end face of the machine shell (1) is provided with a groove, and a sealing ring (18) is sleeved in the groove.
8. The roller worm reducer according to claim 1, characterized in that: the first cover plate (9), the second cover plate (11) and the motor base (13) are all fixedly arranged on the machine shell (1) through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811248343.4A CN111089141A (en) | 2018-10-24 | 2018-10-24 | Roller worm speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811248343.4A CN111089141A (en) | 2018-10-24 | 2018-10-24 | Roller worm speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111089141A true CN111089141A (en) | 2020-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811248343.4A Withdrawn CN111089141A (en) | 2018-10-24 | 2018-10-24 | Roller worm speed reducer |
Country Status (1)
| Country | Link |
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| CN (1) | CN111089141A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819194A (en) * | 2020-06-19 | 2021-12-21 | 上海联紫能源科技有限公司 | Novel ball worm speed reducer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201149067Y (en) * | 2007-12-25 | 2008-11-12 | 福斯特资产有限公司 | Transmission device adopting special worm screw and roller worm wheel |
| CN202065420U (en) * | 2011-05-20 | 2011-12-07 | 杭州嘉诚机械有限公司 | Clutch type worm gear speed reducer |
| CN202251694U (en) * | 2011-09-08 | 2012-05-30 | 江阴克威齿轮箱制造有限公司 | Worm gear and worm retarding mechanism with double output |
| CN104148953A (en) * | 2014-07-14 | 2014-11-19 | 武汉市黄陂新隆建筑机械有限公司 | Ultrahigh-precision positioning rotary worktable with zero-clearance cam and worm transmission effect |
| KR20150029278A (en) * | 2013-09-10 | 2015-03-18 | 박근종 | Back-lash controller of decelerate with worm shaft of double axis and control method thereby |
| CN204416693U (en) * | 2015-01-28 | 2015-06-24 | 四川科伦药业股份有限公司 | Tensioning roller for membrane material membrane decomposition of infusion bag |
| CN209067773U (en) * | 2018-10-24 | 2019-07-05 | 上海联紫能源科技有限公司 | A kind of roller worm decelerating machine |
-
2018
- 2018-10-24 CN CN201811248343.4A patent/CN111089141A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201149067Y (en) * | 2007-12-25 | 2008-11-12 | 福斯特资产有限公司 | Transmission device adopting special worm screw and roller worm wheel |
| CN202065420U (en) * | 2011-05-20 | 2011-12-07 | 杭州嘉诚机械有限公司 | Clutch type worm gear speed reducer |
| CN202251694U (en) * | 2011-09-08 | 2012-05-30 | 江阴克威齿轮箱制造有限公司 | Worm gear and worm retarding mechanism with double output |
| KR20150029278A (en) * | 2013-09-10 | 2015-03-18 | 박근종 | Back-lash controller of decelerate with worm shaft of double axis and control method thereby |
| CN104148953A (en) * | 2014-07-14 | 2014-11-19 | 武汉市黄陂新隆建筑机械有限公司 | Ultrahigh-precision positioning rotary worktable with zero-clearance cam and worm transmission effect |
| CN204416693U (en) * | 2015-01-28 | 2015-06-24 | 四川科伦药业股份有限公司 | Tensioning roller for membrane material membrane decomposition of infusion bag |
| CN209067773U (en) * | 2018-10-24 | 2019-07-05 | 上海联紫能源科技有限公司 | A kind of roller worm decelerating machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819194A (en) * | 2020-06-19 | 2021-12-21 | 上海联紫能源科技有限公司 | Novel ball worm speed reducer |
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Application publication date: 20200501 |