CN107477156A - A kind of reducing gear - Google Patents
A kind of reducing gear Download PDFInfo
- Publication number
- CN107477156A CN107477156A CN201710866678.1A CN201710866678A CN107477156A CN 107477156 A CN107477156 A CN 107477156A CN 201710866678 A CN201710866678 A CN 201710866678A CN 107477156 A CN107477156 A CN 107477156A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- synchronizing wheel
- screw mandrel
- bearing
- housing
- 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
-
- 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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts
-
- 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
- H02K7/1004—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The present invention relates to Mechanical Driven field, more particularly to a kind of reducing gear, including housing, the top of housing are provided with motor, rotating shaft guide sleeve and screw mandrel, and motor is fixed on hull outside, and the main shaft of motor is provided with the first synchronizing wheel；Rotating shaft guide sleeve is fixed on hull outside, rotating shaft is provided with the rotating shaft guide sleeve, enclosure interior is stretched into rotating shaft, the axial direction of rotating shaft is identical with the axial direction of the main shaft of motor, the second synchronizing wheel and the 3rd synchronizing wheel are provided with positioned at enclosure interior in the rotating shaft, the first synchronizing wheel and the second synchronizing wheel are coupled by the first timing belt；Screw mandrel is interspersed on housing, and the axial direction of screw mandrel is identical with the axial direction of rotating shaft, and screw mandrel coordinates with housing switching, and screw mandrel is provided with the 4th synchronizing wheel being threadedly coupled with it, and the 3rd synchronizing wheel and the 4th synchronizing wheel are coupled by the second timing belt.The present invention drives major diameter synchronizing wheel to complete to slow down by minor diameter synchromesh gear, and its is simple in construction, easy for installation, and the advantages of reduce whole height.
Description
Technical field
The present invention relates to Mechanical Driven field, more particularly to a kind of reducing gear.
Background technology
Reducing gear be it is known and for by the speed-shifting of motor such as motor into low speed.
Known reducing gear is imitation planetary transmission.Planetary transmission is generally included to be provided with and nibbled outside
The input gear of tooth is closed, it coordinates with least one planetary gear.Planetary rotary shaft surrounds into gear movement and not solid
Surely arrange.Planetary gear coordinates with annular output gear.
When in particular applications a high transmission ratio is desirable, just use for example based on the " reducing gear of harmonic drive principle.
Harmonic drive reduction mechanism includes the external toothing gear ring provided with internal messing tooth, in the external toothing, can operate one and set
Have the ring gear of external toothing tooth, the ring gear for rubbing but be connected with fixing base to restrict its rotation.Ring gear compares external tooth
Few two teeth of circle, and be pressed against by two pressing bodies on external toothing.The two pressing bodies are relative to defeated on input shaft
Enter end to be rotationally arranged symmetrically.Input is centrifuged relative to external toothing and positioned.Therefore, at two respective points, ring gear tool
There are multiple teeth coordinated with external tooth by the tooth of disease.When two pressing bodies will surround the common axis rotation of inner turns and outer turns,
It can not be rotated because ring gear is connected to fixing base from face is constrained, therefore external toothing will start to rotate.Pressing body revolves every time
The rotation reason turned is equivalent to the angle corresponding with the anglec of rotation of two teeth.
Therefore, harmonic drive reduction mechanism has high gearratio.
The shortcomings that harmonic drive reduction mechanism, is that because the mechanism includes many parts, thus its is relatively complicated.This
Outside, the total height of the mechanism is of a relatively high and relatively inefficient.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of reducing gear.
To solve the above problems, the present invention provides following technical scheme：
A kind of reducing gear, including housing, the top of housing are provided with motor, rotating shaft guide sleeve and screw mandrel, driving electricity
Machine is fixed on hull outside, and the main shaft of motor stretches into enclosure interior, and the main shaft of motor is provided with the first synchronizing wheel；Turn
Axle guide sleeve is fixed on hull outside and turn with its cooperation of transferring is provided with the side of motor, the rotating shaft guide sleeve
Enclosure interior is stretched into axle, rotating shaft, and the axial direction of rotating shaft is identical with the axial direction of the main shaft of motor, and enclosure interior is located in the rotating shaft
Provided with the second synchronizing wheel and the 3rd synchronizing wheel, the first synchronizing wheel and the second synchronizing wheel are located at sustained height and passed through therebetween
First timing belt couples；Screw mandrel is interspersed on housing and positioned at the side of rotating shaft, and the axial direction of screw mandrel is identical with the axial direction of rotating shaft, silk
Bar coordinates with housing switching, and screw mandrel is provided with the 4th synchronizing wheel being threadedly coupled with it, and the 4th synchronizing wheel is located at enclosure interior
And it is located at sustained height with the 3rd synchronizing wheel, the 3rd synchronizing wheel and the 4th synchronizing wheel are coupled by the second timing belt, and the 4th is synchronous
Wheel is connected with screw rod transmission.
Further, the bearing includes clutch shaft bearing group and second bearing group, and clutch shaft bearing group is located at rotating shaft guide sleeve
Internal top, second bearing group are located at the lower section inside rotating shaft guide sleeve.
Further, clutch shaft bearing group includes clutch shaft bearing and second bearing, and second bearing group includes 3rd bearing and the
Four bearings；It is provided with the through hole for rotating shaft grafting in rotating shaft guide sleeve, the top inside rotating shaft guide sleeve, which is provided with, to be used to place first
First mounting hole of bearing group, the lower section inside bearing guide sleeve are provided with the second mounting hole for being used for placing second bearing group, the
The diameter of one mounting hole and the second mounting hole is all higher than the diameter of through hole, and the first limiting stand is formed between the first mounting hole and through hole
Rank, the lower surface of second bearing form spacing cooperation with the first limited step, and the second limit is formed between the second mounting hole and through hole
Position step, the upper surface of 3rd bearing form spacing cooperation with the second limited step.
Further, the upper end of clutch shaft bearing is provided with rotating shaft fixture, and rotating shaft fixture is threaded in rotating shaft, and
Rotating shaft fixture is pressed together on clutch shaft bearing upper surface.
Further, the screw mandrel is hollow structure, and the top of screw mandrel is provided with limited block, and the top of screw mandrel is transferred spacing
In block；The bottom of screw mandrel is arranged finite place piece, and perforation, the axis of perforation and the axle of screw mandrel are provided with below locating part on screw mandrel
Line is vertical and intersects.
Further, the gearratio of the first synchronizing wheel and the second synchronizing wheel is 1 to 3, the 3rd synchronizing wheel and the 4th synchronizing wheel
Gearratio is 1 to 2.
Beneficial effect：A kind of reducing gear of the present invention, the first synchronizing wheel of motor driving minor diameter rotates, by small
First synchronizing wheel of diameter drives the second synchronizing wheel of major diameter to rotate, and then makes the second synchronizing wheel and the 3rd synchronously by rotating shaft
Synchronous axial system is taken turns, then the 4th synchronizing wheel of the 3rd synchronizing wheel drive major diameter for passing through minor diameter, screw mandrel are repeatedly subtracted by above-mentioned
Speed realizes fixed rotating speed, and it has simple in construction, installation relative to Gear Planet Transmission reducing gear harmonic gear reduction mechanism
Conveniently, the advantages of and reducing whole height.
Brief description of the drawings
Fig. 1 is the sectional view of the present invention；
Fig. 2 is the enlarged drawing at A in Fig. 1；
Fig. 3 is the enlarged drawing at B in Fig. 1；
Description of reference numerals：Housing 1, the second synchronizing wheel 1a, the first timing belt 1a1, the 3rd synchronizing wheel 1b, the second timing belt
1b1 motors 2, the first synchronizing wheel 2a, rotating shaft guide sleeve 3, rotating shaft 3a, rotating shaft fixture 3a1, clutch shaft bearing 3b, the second axle
Hold 3c, 3rd bearing 3d, fourth bearing 3e, through hole 3f, screw mandrel 4, the 4th synchronizing wheel 4a, limited block 4b, locating part 4c, perforation
4d, the first limited step 5, the second limited step 6.
Embodiment
With reference to Figure of description and embodiment, the specific embodiment of the present invention is described in further detail：
Referring to figs. 1 to a kind of reducing gear shown in Fig. 3, including housing 1, the top of housing 1 is provided with motor 2, turned
Axle guide sleeve 3 and screw mandrel 4, motor 2 are fixed on outside housing 1, and the main shaft of motor 2 is stretched into inside housing 1, driving electricity
The main shaft of machine 2 is provided with the first synchronizing wheel 2a；Rotating shaft guide sleeve 3 is fixed on the outside of housing 1 and is located at the side of motor 2,
The rotating shaft 3a with its cooperation of transferring is provided with the rotating shaft guide sleeve 3, rotating shaft 3a is stretched into inside housing 1, rotating shaft 3a axial direction and drive
The axial direction of the main shaft of dynamic motor 2 is identical, and the second synchronizing wheel 1a and the 3rd synchronizing wheel are provided with positioned at the inside of housing 1 on rotating shaft 3a
1b, the first synchronizing wheel 2a and the second synchronizing wheel 1a are located at sustained height and coupled by the first timing belt 1a1 therebetween；Silk
Bar 4 is interspersed on housing 1 and positioned at rotating shaft 3a side, the axial direction of screw mandrel 4 is identical with rotating shaft 3a axial direction, screw mandrel 4 and housing 1
Switching coordinates, and screw mandrel 4 is provided with the 4th synchronizing wheel 4a being threadedly coupled with it, and the 4th synchronizing wheel 4a is located at the inside of housing 1 simultaneously
It is located at sustained height with the 3rd synchronizing wheel 1b, the 3rd synchronizing wheel 1b and the 4th synchronizing wheel 4a are coupled by the second timing belt 1b1, the
Four synchronizing wheel 4a are connected with screw mandrel 4.
Operation principle：Motor 2 drives the first synchronizing wheel 2a to rotate, the second synchronizing wheel 1a by the first synchronizing wheel 2a and
First timing belt 1a1 of the second synchronizing wheel 1a connections rotates with the first synchronizing wheel 2a rotation, then makes the by rotating shaft 3a
Two synchronizing wheel 1a and the 3rd synchronizing wheel 1b synchronous axial systems, while rotation, the 4th synchronizing wheel 4a passes through the 3rd synchronizing wheel 1b and
The second timing belt 1b1 also concomitant rotations of four synchronizing wheel 4a connections, and the 4th synchronizing wheel 4a rotates hour wheel all the time on screw mandrel 4
Keep same position.
The bearing includes clutch shaft bearing group and second bearing group, and clutch shaft bearing group is located at upper inside rotating shaft guide sleeve 3
Side, second bearing group are located at the lower section inside rotating shaft guide sleeve 3.
Clutch shaft bearing group includes clutch shaft bearing 3b and second bearing 3c, and second bearing group includes 3rd bearing 3d and the 4th axle
Hold 3e；It is provided with the through hole 3f for rotating shaft 3a grafting in rotating shaft guide sleeve 3, the top inside rotating shaft guide sleeve 3 is provided with for placing
First mounting hole of clutch shaft bearing group, the lower section inside bearing guide sleeve, which is provided with, is used for the second installation for placing second bearing group
The diameter of hole, the first mounting hole and the second mounting hole is all higher than through hole 3f diameter, is formed between the first mounting hole and through hole 3f
First limited step 5, second bearing 3c lower surface form spacing cooperation, the second mounting hole and through hole with the first limited step 5
The second limited step 6 is formed between 3f, 3rd bearing 3d upper surface forms spacing cooperation with the second limited step 6；First axle
The top that 3b and second bearing 3c is installed to from the first mounting hole inside rotating shaft guide sleeve 3 is held, can by the first limited step 5
Clutch shaft bearing 3b and second bearing 3c is set to be fixed in the first mounting hole, 3rd bearing 3d and fourth bearing 3e are from the second mounting hole
It the lower section being installed to inside rotating shaft guide sleeve 3, can fix 3rd bearing 3d and fourth bearing 3e by the second limited step 6
In the second mounting hole.
Clutch shaft bearing 3b upper end is provided with rotating shaft fixture 3a1, and rotating shaft fixture 3a1 is threaded on rotating shaft 3a, and
And rotating shaft fixture 3a1 is pressed together on clutch shaft bearing 3b upper surfaces；Rotating shaft fixture 3a1 design is to prevent rotating shaft 3a along axle
To movement.
The screw mandrel 4 is hollow structure, and the top of screw mandrel 4 is provided with limited block 4b, and the top of screw mandrel 4 is transferred in limited block 4b
It is interior；The bottom of screw mandrel 4 is arranged finite place piece 4c, is provided with perforation 4d on screw mandrel 4 below locating part 4c, the axis for the 4d that perforates with
The axis of screw mandrel 4 is vertical and intersects；Can be placed in screw mandrel 4 needs the connection rotating shaft that couples, and couple rotating shaft can be with
The rotation of screw mandrel 4 and rotate, the bottom of screw mandrel 4 can also be arranged gear, and the upper surface of gear is contradicted on locating part 4c, then pass through
Latch is inserted through perforation 4d and gear is fixed on screw mandrel 4, and the 4d's that perforates is designed to make gear to be rotated with the rotation of screw mandrel 4.
First synchronizing wheel 2a and the second synchronizing wheel 1a gearratio are 1 to 3, and the 3rd synchronizing wheel 1b and the 4th synchronizing wheel 4a are passed
Dynamic ratio is 1 to 2；Second synchronizing wheel 1a of major diameter is driven by the first synchronizing wheel 2a of minor diameter, realizes first step deceleration；
The 4th synchronizing wheel of major diameter is driven by the 3rd synchronizing wheel 1b of minor diameter again, realizes second step deceleration.
The above described is only a preferred embodiment of the present invention, any limit not is made to the technical scope of the present invention
System, therefore any subtle modifications, equivalent variations and modifications that every technical spirit according to the present invention is made to above example,
In the range of still falling within technical scheme.
Claims (6)
- A kind of 1. reducing gear, it is characterised in that：Including housing (1), the top of housing (1) is led provided with motor (2), rotating shaft To set (3) and screw mandrel (4), motor (2) is fixed on housing (1) outside, and the main shaft of motor (2) is stretched into housing (1) Portion, the main shaft of motor (2) are provided with the first synchronizing wheel (2a)；Rotating shaft guide sleeve (3) is fixed on housing (1) outside and is located at Shell is stretched into the side of motor (2), the interior rotating shaft (3a) being provided with its cooperation of transferring of the rotating shaft guide sleeve (3), rotating shaft (3a) Body (1) is internal, and the axial direction of rotating shaft (3a) is identical with the axial direction of the main shaft of motor (2), and housing (1) is located in the rotating shaft (3a) Inside is provided with the second synchronizing wheel (1a) and the 3rd synchronizing wheel (1b), and the first synchronizing wheel (2a) and the second synchronizing wheel (1a) are positioned at same Pass through highly and therebetween the first timing belt (1a1) to couple；Screw mandrel (4) is interspersed on housing (1) and is located at rotating shaft (3a) Side, the axial direction of screw mandrel (4) is identical with the axial direction of rotating shaft (3a), and the switching of screw mandrel (4) and housing (1) coordinates, and screw mandrel is set on (4) Have the 4th synchronizing wheel (4a) being threadedly coupled with it, the 4th synchronizing wheel (4a) be located at housing (1) it is internal and with the 3rd synchronizing wheel (1b) is located at sustained height, the 3rd synchronizing wheel (1b) and the 4th synchronizing wheel (4a) and coupled by the second timing belt (1b1), and the 4th is same Step wheel (4a) is connected with screw mandrel (4).
- A kind of 2. reducing gear according to claim 1, it is characterised in that：The bearing includes clutch shaft bearing group and second Bearing group, clutch shaft bearing group are located at the internal top of rotating shaft guide sleeve (3), and it is internal that second bearing group is located at rotating shaft guide sleeve (3) Lower section.
- A kind of 3. reducing gear according to claim 2, it is characterised in that：Clutch shaft bearing group include clutch shaft bearing (3b) and Second bearing (3c), second bearing group include 3rd bearing (3d) and fourth bearing (3e)；It is provided with rotating shaft guide sleeve (3) for turning The through hole (3f) of axle (3a) grafting, the internal top of rotating shaft guide sleeve (3), which is provided with, is used for the first installation for placing clutch shaft bearing group Hole, the lower section inside bearing guide sleeve are provided with the second mounting hole for being used for placing second bearing group, the first mounting hole and the second peace The diameter in dress hole is all higher than through hole (3f) diameter, and the first limited step (5) is formed between the first mounting hole and through hole (3f), the The lower surface of two bearings (3c) forms spacing cooperation with the first limited step (5), is formed between the second mounting hole and through hole (3f) Second limited step (6), upper surface and the second limited step (6) of 3rd bearing (3d) form spacing cooperation.
- A kind of 4. reducing gear according to claim 3, it is characterised in that：The upper end of clutch shaft bearing (3b) is consolidated provided with rotating shaft Determine part (3a1), rotating shaft fixture (3a1) is threaded in rotating shaft (3a), and rotating shaft fixture (3a1) is pressed together on first axle Hold (3b) upper surface.
- A kind of 5. reducing gear according to claim 1, it is characterised in that：The screw mandrel (4) is hollow structure, screw mandrel (4) top is provided with limited block (4b), and the top switching of screw mandrel (4) is in limited block (4b)；The bottom of screw mandrel (4) is arranged limited Position part (4c), perforation (4d) is provided with screw mandrel (4) below locating part (4c), the perforate axis of (4d) and the axle of screw mandrel (4) Line is vertical and intersects.
- A kind of 6. reducing gear according to claim 1, it is characterised in that：First synchronizing wheel (2a) and the second synchronizing wheel The gearratio of (1a) is 1 to 3, and the 3rd synchronizing wheel (1b) is 1 to 2 with the 4th synchronizing wheel (4a) gearratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710866678.1A CN107477156A (en) | 2017-09-22 | 2017-09-22 | A kind of reducing gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710866678.1A CN107477156A (en) | 2017-09-22 | 2017-09-22 | A kind of reducing gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107477156A true CN107477156A (en) | 2017-12-15 |
Family
ID=60586889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710866678.1A Pending CN107477156A (en) | 2017-09-22 | 2017-09-22 | A kind of reducing gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107477156A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799271A (en) * | 2017-05-02 | 2018-11-13 | 麦格纳宝德科有限公司 | The drive component for including multipurpose connector for vehicle accessory |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201093044Y (en) * | 2007-08-27 | 2008-07-30 | 西安航空发动机（集团）有限公司 | Oriented crystallization platform drive mechanism |
| CN101437712A (en) * | 2006-02-16 | 2009-05-20 | Skf公司 | An electromechanical linear actuator for a parking brake |
| CN203176294U (en) * | 2013-03-19 | 2013-09-04 | 长乐海汇闽航机械有限公司 | Ball screw rod lifting device |
| CN105134899A (en) * | 2015-10-13 | 2015-12-09 | 黄石优利福自动化装备有限责任公司 | Ball screw transmission gear |
| CN105223972A (en) * | 2015-10-29 | 2016-01-06 | 中国科学院理化技术研究所 | Micro-liquid conveying device |
| WO2016132968A1 (en) * | 2015-02-19 | 2016-08-25 | スチールプランテック株式会社 | Mold vibrating device |
| CN105971565A (en) * | 2016-07-27 | 2016-09-28 | 大庆宏升石油机械设备制造有限公司 | Jig frequency reduction device of pumping unit |
-
2017
- 2017-09-22 CN CN201710866678.1A patent/CN107477156A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101437712A (en) * | 2006-02-16 | 2009-05-20 | Skf公司 | An electromechanical linear actuator for a parking brake |
| CN201093044Y (en) * | 2007-08-27 | 2008-07-30 | 西安航空发动机（集团）有限公司 | Oriented crystallization platform drive mechanism |
| CN203176294U (en) * | 2013-03-19 | 2013-09-04 | 长乐海汇闽航机械有限公司 | Ball screw rod lifting device |
| WO2016132968A1 (en) * | 2015-02-19 | 2016-08-25 | スチールプランテック株式会社 | Mold vibrating device |
| CN105134899A (en) * | 2015-10-13 | 2015-12-09 | 黄石优利福自动化装备有限责任公司 | Ball screw transmission gear |
| CN105223972A (en) * | 2015-10-29 | 2016-01-06 | 中国科学院理化技术研究所 | Micro-liquid conveying device |
| CN105971565A (en) * | 2016-07-27 | 2016-09-28 | 大庆宏升石油机械设备制造有限公司 | Jig frequency reduction device of pumping unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799271A (en) * | 2017-05-02 | 2018-11-13 | 麦格纳宝德科有限公司 | The drive component for including multipurpose connector for vehicle accessory |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171215 |
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| RJ01 | Rejection of invention patent application after publication |