CN105972158A - Oil-free worm-gear reducer - Google Patents
Oil-free worm-gear reducer Download PDFInfo
- Publication number
- CN105972158A CN105972158A CN201610393324.5A CN201610393324A CN105972158A CN 105972158 A CN105972158 A CN 105972158A CN 201610393324 A CN201610393324 A CN 201610393324A CN 105972158 A CN105972158 A CN 105972158A
- Authority
- CN
- China
- Prior art keywords
- worm
- worm gear
- gear
- oil
- output shaft
- 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
Links
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
- 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
-
- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
-
- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention provides an oil-free worm-gear reducer. The oil-free worm-gear reducer comprises a motor, a transmission shaft, a worm gear, a worm, a reducer case, a bearing and an output shaft. A worm gear cavity for holding the worm gear and a worm cavity for holding the worm are arranged inside the reducer case and communicate with each other. The worm gear is fixedly connected with the output shaft which extends out of the reducer case. A motor shaft extends into the worm cavity, is sleeved with the worm directly, and is fixedly connected with the worm. A circumferential connecting protrusion is arranged in the middle of the outer wall of the output shat and is directly sleeved with the worm gear. The worm gear is made of poly(ether-ether-ketone) material. The reducer is small in structural size, achieves oil-free lubrication, needs no maintenance and has other properties. Poly(ether-ether-ketone) high molecular material and fiberglass or carbon fibers are combined into the reinforced material. The worm gear is formed by conducting injection molding on the reinforced material together with the output shaft, so that the self-lubrication performance of the worm gear is greatly improved, a small amount of heat is generated by friction, and no lubricating oil is needed for lubrication or heat dissipation. The reducer is smaller in size and convenient to install.
Description
Technical field
The present invention relates to a kind of right angle both-end output decelerator, particularly to a kind of worm gear without lubricating oil
Worm reducer.
Background technology
Industry and the common decelerator automatically controlling neck use are by being enclosed in stiff case internal gear transmission,
Worm Wheel System, the individual components that the mode such as pinion-endless screw transmission is formed.These parts and prime mover,
Connect with shaft coupling between working machine.Due to connection, transmission between component of machine, lubricate, heat radiation etc.
Structure is complicated so that it is volume is relatively big, generally uses oil lubrication heat radiation, easily causes oil leakage, is formed
Pollute.The most common decelerator has environmental requirement at some, and the occasion of narrow space uses and is restricted.
At present, motor-driven worm type of reduction gearing by motor, electric machine support, shaft coupling, power transmission shaft,
Worm gear, worm screw, reduction case, bearing, output shaft, lubricating oil etc. form, and worm screw subtracts conventional worm
Motor shaft and power transmission shaft being connected by shaft coupling after the motor rotation of speed device, worm screw is contained in rotating shaft, snail
Bar engages with being contained in worm gear on output shaft, and rotation and torque are delivered to actuator.
Motor is to be supported by electric machine support, and power transmission shaft, output shaft are contained on reduction case by bearing.
Reduction case is that shaft member ensures transmission accessory tram, and supporting role is in decelerator load
Important feature part.During worm gear and worm engaging, friction generates heat need to distribute and reduce the required profit of friction
Sliding, realized by lubricating oil in reduction-gear housing body, so that install oil sealing on reduction case,
The structures such as end cap.Long time running, is produced oil gas and is discharged by oil cap in casing, lower box also to have
The structural members such as the oil drain plug of more oil change.
Therefore conventional worm worm reducer structure is complicated, and volume is relatively big, and maintaining is loaded down with trivial details, moistens simultaneously
Lubricating oil easily leaks and causes environmental pollution.
Summary of the invention
The technical problem to be solved is to provide a kind of structure simplification, volume reduces, Maintenance free
The oil-free worm type of reduction gearing of maintenance.
For solving above-mentioned technical problem, the invention provides a kind of oil-free worm type of reduction gearing, including electricity
Machine, power transmission shaft, worm gear, worm screw, reduction case, bearing and output shaft, be provided with in reduction-gear housing body
Place worm gear worm gear chamber and place worm screw worm screw chamber, worm gear chamber communicates with each other with worm screw chamber, worm gear with
Worm screw cooperates, and worm gear is fixing with output shaft to be connected, and it is external that output shaft stretches out reduction-gear housing；
The motor shaft of motor stretches into worm screw intracavity from reduction-gear housing external body, and worm screw is directly sleeved on motor shaft
On, fix between worm screw with motor shaft and be connected；
Being provided with the connection bump of circumference in the middle part of output shaft outer wall, worm gear is fixedly set in outside connection bump；
Worm gear uses polyether-ether-ketone material.
After using such structure, this oil-free worm type of reduction gearing structure is simplified, and volume reduces,
Oil-free lubrication, it is not necessary to the performances such as maintaining, makes the more convenient application of decelerator；And have employed polyethers ether
Ketone macromolecular material is combined into reinforcing material with glass fibre or Carbon fibe.It is molded post-treatment with output shaft
Become worm gear, make worm gear self-lubricity greatly strengthen, thus that friction generates heat is few, be not required to use lubrication glossy
Sliding, heat radiation.Worm screw is riveted into one with motor extension shaft, makes drive mechanism the most succinct, eliminates biography
Moving axis, shaft coupling, a bearing, form cantilever worm screw and strengthen the suitability of system, make manufacturing cost drop
Low.Decelerator volume is less simultaneously, and weight is lighter, it is simple to install.
Use the high molecular reinforcing material of polyether-ether-ketone, the mechanical property that it has toughness and rigidity has both,
Particularly anti-fatigue performance under alternate stress is highlighted, there is excellent sliding properties, low-friction coefficient,
Wearability is the most superior.Its thermal coefficient of expansion is little simultaneously, good stability of the dimension in running, therefore its
Adapt to as driving parts especially.Reduction case is internally installed the bearing coordinated with output shaft, due to
Polyether-ether-ketone high molecular reinforcing material self-lubricity, makes worm gear more preferable with worm engaging, and system is run non-
Chang Pingwen.
Patent of the present invention has the advantage that 1. compact conformations, light and handy, small-sized efficient.2. oil-free lubrication,
Service free.3. heat dispersion is good.4. without shaft coupling, reducing bearing, oil-free and oil sealing etc. are relevant joins
Part, reduces cost.5. operating steadily, noise is low；
This oil-free worm type of reduction gearing uses oil-free design, and right angle both-end exports so that it is be adapted to symmetry
In drive mechanism, oil-free lubrication mode can make product for the occasion high to environmental requirement such as food, medicine,
Maintenance free maintenance, miniaturization volume, that the feature such as lightweight makes it apply is the most extensive.
For the clearer technology contents understanding the present invention, below by the letter of this oil-free worm type of reduction gearing
It is referred to as this decelerator.
The end of the motor shaft of this decelerator is in worm screw intracavity, passes through between motor shaft and reduction case
Bearing fit；After using such structure, the motor shaft of motor forms cantilever design, it is simple to assembling, is
Unite the most succinct.
The worm gear of this decelerator uses injection mo(u)lding and is connected as a single entity with output shaft；Use such structure
After, it is connected tightr between output shaft with worm gear.
The cross sectional shape of the connection bump of this decelerator is regular hexagon, if the outer wall of connection bump is provided with
Dry annular groove；After using such structure, connection bump is designed to hexagonal body Intermediate Gray inlaying of annular groove
Part structure, can improve the adhesive force of axle and polyether-ether-ketone (PEEK) material, improves steel part and macromolecule
Adhesion between material.
Accompanying drawing explanation
Fig. 1 is the structural representation of this decelerator embodiment.
Fig. 2 be Fig. 1 along A-A to sectional view.
Fig. 3 is the structural representation of this decelerator embodiment motor.
Fig. 4 is this decelerator embodiment motor worm gear, worm screw and the structural representation of double output shaft.
Fig. 5 is the structural representation of this decelerator embodiment double output shaft.
Fig. 6 is the left view of Fig. 5.
Fig. 7 is the structural representation of this decelerator embodiment worm screw.
Detailed description of the invention
If Fig. 1 is to shown in 7
This decelerator includes motor 2, power transmission shaft, worm gear 5, worm screw 3, reduction case 1, bearing 22
With double output shaft 4.
Reduction case 1 be by precision aluminium-alloy casting form, reduction case 1 by front side lid and after
The pedestal of side assembles, and compact is lightweight, and heat conductivity is good, is provided with and puts in reduction case 1
Putting the worm gear chamber 12 of worm gear 5 and place the worm screw chamber 11 of worm screw 3, worm gear chamber 12 is with worm screw chamber 11 each other
Communicate.
Position, design and installation hole on reduction case 1 outer wall, is directly pacified motor 2 by flange end face hole
Being contained in outside reduction case 1, it is not necessary to motor 2 support, the parts such as shaft coupling, motor 2 uses elongated defeated
Shaft, the motor shaft 21 of motor 2 stretches in worm screw chamber 11 from reduction case 1 outside；
Being coordinated by bearing 22 between motor shaft 21 with reduction case 1, the end of motor shaft 21 is in
In worm screw chamber 11, use cantilever beam structure form, reduce other end bearing arrangement, make whole system compact,
Install more convenient；
Worm screw 3 is directly sleeved on motor shaft 21, by rivet 24 riveting between worm screw 3 and motor shaft 21
Connecing fixing, reduce by a power transmission shaft, owing to system pliability is big, motor shaft 21 uses cantilever beam structure shape
Formula, makes whole system compact, installs more convenient, and motor shaft 21 uses specific customization extension shaft, for reality
Now it is connected succinct between worm screw 3 with motor shaft 21, reduces mating parts, motor shaft 21 is lengthened, and
Form Step Shaft.So worm screw 3, bearing 22, back-up ring 23 disposably can be contained on motor shaft 21,
And realize axially location.
Double output shaft 4 is steel material, and double output shaft 4 two ends are stretched out outside reduction case 1 respectively, and
And double output shaft 4 two ends sidewall is machined with Woodruff key slots and keyways 41 respectively, double output shaft 4 is by keyway 41 and work
Make machine or actuator connects, it is achieved both-end exports, and is provided with the connection of circumference in the middle part of double output shaft 4 outer wall
Protruding 42, the cross sectional shape of connection bump 42 is regular hexagon, and the outer wall of connection bump 42 is provided with three
Bar annular groove 43.
Worm gear 5 is fixedly set in outside connection bump 42, and worm gear 5 uses polyether-ether-ketone material, worm gear 5
Being connected by Shooting Technique with double output shaft 4, connection bump 42 is designed in the middle of three sections of hexagonal bodies
With the inserts structure of annular groove 43, the adhesive force of axle and polyether-ether-ketone (PEEK) material can be improved,
Improving the adhesion between steel part and macromolecular material, these double output shaft 4 two ends are designed with keyway 41, snail
Wheel 5 and double output shaft 4 retable post-treatment molding, it is to avoid mounting structure, make drive system the most succinct.
Worm gear 5 and worm screw 3 cooperate, and worm gear 5 is fixing with double output shaft 4 to be connected, double output shaft 4
Two ends are stretched out outside reduction case 1, and double output shaft 4 and worm gear 5 form integrated worm wheel 5 assembly to be passed through
Bearing 44 loads in the bearing block of reduction case 1, and casing bottom surface is designed with installation screw, conveniently will
Motor 2 decelerator is fixed to application places.
Small-sized oil-free alternating current generator 2 decelerator that the present embodiment assembles, speed reducing ratio is 7.33, output
Nominal torque 2.3N.m, rated power 100w, its volume 73.5X70.5X45, weight is: 1.3kg.
It is usually used in the machine driving of industry, automation field.
Above-described is only one embodiment of the present invention, it is noted that common for this area
For technical staff, under the premise without departing from the principles of the invention, it is also possible to make some modification and improvement,
These also should be regarded as belonging to protection scope of the present invention.
Claims (4)
1. an oil-free worm type of reduction gearing, including motor, power transmission shaft, worm gear, worm screw, reduction case,
Bearing and output shaft, be provided with the worm gear chamber placing worm gear and the worm screw chamber placing worm screw in reduction-gear housing body,
Worm gear chamber communicates with each other with worm screw chamber, and worm gear and worm screw cooperate, and worm gear is fixing with output shaft to be connected,
It is external that output shaft stretches out reduction-gear housing, it is characterized by:
The motor shaft of motor stretches into worm screw intracavity from reduction-gear housing external body, and worm screw is directly sleeved on motor shaft
On, fix between worm screw with motor shaft and be connected；
Being provided with the connection bump of circumference in the middle part of output shaft outer wall, worm gear is fixedly set in outside connection bump；
Worm gear uses polyether-ether-ketone material.
Oil-free worm type of reduction gearing the most according to claim 1, is characterized in that:
The end of described motor shaft is in worm screw intracavity, is joined by bearing between motor shaft and reduction case
Close.
Oil-free worm type of reduction gearing the most according to claim 1, is characterized in that:
Described worm gear uses injection mo(u)lding and is connected as a single entity with output shaft.
Oil-free worm type of reduction gearing the most according to claim 3, is characterized in that:
The cross sectional shape of described connection bump is regular hexagon, and the outer wall of connection bump is provided with some rings
Groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610393324.5A CN105972158A (en) | 2016-05-31 | 2016-05-31 | Oil-free worm-gear reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610393324.5A CN105972158A (en) | 2016-05-31 | 2016-05-31 | Oil-free worm-gear reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105972158A true CN105972158A (en) | 2016-09-28 |
Family
ID=57010845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610393324.5A Pending CN105972158A (en) | 2016-05-31 | 2016-05-31 | Oil-free worm-gear reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105972158A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654201A (en) * | 2019-01-18 | 2019-04-19 | 苏州通润驱动设备股份有限公司 | A kind of building hoist reduction gearbox and its installation method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5970813A (en) * | 1997-09-17 | 1999-10-26 | Abl Boat Lifts | Drive system |
| CN1272242A (en) * | 1998-05-14 | 2000-11-01 | 马渊马达株式会社 | Small-sized motor with worm speed reducer and method of manufacturing motor |
| US20010039730A1 (en) * | 2000-05-09 | 2001-11-15 | Hiroshi Fujita | Method of producing resin gear |
| US20060005652A1 (en) * | 2004-07-07 | 2006-01-12 | Koyo Seiko Co., Ltd. | Worm wheel and electric power steering system |
| CN1808855A (en) * | 2004-12-22 | 2006-07-26 | 马渊马达株式会社 | Small-sized motor with decelerator |
| CN1932339A (en) * | 2005-09-16 | 2007-03-21 | Ims传动装置有限公司 | Gearbox for adjustment devices, especially in motor vehicles |
| CN202326922U (en) * | 2011-12-09 | 2012-07-11 | 浙江康明斯机械有限公司 | Worm gear speed reducer |
| CN203670612U (en) * | 2014-01-02 | 2014-06-25 | 浙江三凯机电有限公司 | Worm gear reducer |
| JP2014162396A (en) * | 2013-02-26 | 2014-09-08 | Nsk Ltd | Electric power steering device, reduction gear mechanism, and method of manufacturing gear for reduction gear mechanism |
-
2016
- 2016-05-31 CN CN201610393324.5A patent/CN105972158A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5970813A (en) * | 1997-09-17 | 1999-10-26 | Abl Boat Lifts | Drive system |
| CN1272242A (en) * | 1998-05-14 | 2000-11-01 | 马渊马达株式会社 | Small-sized motor with worm speed reducer and method of manufacturing motor |
| US20010039730A1 (en) * | 2000-05-09 | 2001-11-15 | Hiroshi Fujita | Method of producing resin gear |
| US20060005652A1 (en) * | 2004-07-07 | 2006-01-12 | Koyo Seiko Co., Ltd. | Worm wheel and electric power steering system |
| CN1808855A (en) * | 2004-12-22 | 2006-07-26 | 马渊马达株式会社 | Small-sized motor with decelerator |
| CN1932339A (en) * | 2005-09-16 | 2007-03-21 | Ims传动装置有限公司 | Gearbox for adjustment devices, especially in motor vehicles |
| CN202326922U (en) * | 2011-12-09 | 2012-07-11 | 浙江康明斯机械有限公司 | Worm gear speed reducer |
| JP2014162396A (en) * | 2013-02-26 | 2014-09-08 | Nsk Ltd | Electric power steering device, reduction gear mechanism, and method of manufacturing gear for reduction gear mechanism |
| CN203670612U (en) * | 2014-01-02 | 2014-06-25 | 浙江三凯机电有限公司 | Worm gear reducer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654201A (en) * | 2019-01-18 | 2019-04-19 | 苏州通润驱动设备股份有限公司 | A kind of building hoist reduction gearbox and its installation method |
| CN109654201B (en) * | 2019-01-18 | 2023-09-26 | 苏州通润驱动设备股份有限公司 | Reduction gearbox for construction elevator and installation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160928 |
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| RJ01 | Rejection of invention patent application after publication |