CN108443418A - A kind of worm type of reduction gearing - Google Patents
A kind of worm type of reduction gearing Download PDFInfo
- Publication number
- CN108443418A CN108443418A CN201810314388.0A CN201810314388A CN108443418A CN 108443418 A CN108443418 A CN 108443418A CN 201810314388 A CN201810314388 A CN 201810314388A CN 108443418 A CN108443418 A CN 108443418A
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- CN
- China
- Prior art keywords
- worm
- reduction gearing
- motor
- power output
- gear
- 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.)
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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
- 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
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The present invention provides a kind of worm type of reduction gearing, belong to retarder technical field.A kind of worm type of reduction gearing, including：Worm-gear assembly and worm component, Worm-gear assembly include worm gear.Worm component includes the motor of the worm screw that can be engaged with worm gear and driving worm screw rotation, motor includes power output shaft, worm screw includes wheel shaft and the helical tooth in wheel shaft circumferential direction is arranged, the pto shaft drive of wheel shaft and motor connects, and spiral teeth directional power output shaft extends and covers power output shaft.It can improve the big defect of driving error.
Description
Technical field
The present invention relates to retarder technical fields, in particular to a kind of worm type of reduction gearing.
Background technology
Currently, worm type of reduction gearing is a kind of power transmission mechanism, using the rate conversion of gear, by motor or motor
Winding number decelerate to desired winding number, and obtain the mechanism of larger torque.
Being widely used for worm-gear speed reducer is general, from the ship, automobile, locomotive of the vehicles, heavy type for building
Equipment, machining machine and tool and automated production equipment used in mechanical industry, to household electrical appliances common in daily life, clock and watch etc..
Its application arrives Smaller load from the transmission work of big power, and accurate angle transmission can see the application of speed reducer.
But current worm-gear speed reducer has larger driving error in use.
Invention content
The purpose of the present invention is to provide a kind of worm type of reduction gearing, can improve the big defect of driving error.
The invention is realized in this way：
A kind of worm type of reduction gearing, including：Worm-gear assembly and worm component.
Worm-gear assembly includes worm gear；
Worm component includes the motor of the worm screw that can be engaged with worm gear and driving worm screw rotation, and motor includes power output
Axis, worm screw include wheel shaft and are arranged the helical tooth in wheel shaft circumferential direction, and the pto shaft drive of wheel shaft and motor connects, spiral shell
Rotation teeth directional power output shaft extends and covers power output shaft.
Further, in an embodiment of the present invention：
The power output shaft of wheel shaft and motor is interference fitted.
Further, in an embodiment of the present invention：
One end of wheel shaft is provided with blind hole, and power output shaft is interference fitted with blind hole.
Further, in an embodiment of the present invention：
The helical tooth being arranged on wheel shaft is the first helical tooth, and the helical tooth for extending to power output shaft is the second spiral
The ratio between axial length of tooth, the axial length of the first helical tooth and the second helical tooth is 0.4~0.6：1.
Further, in an embodiment of the present invention：
The ratio between axial length of the axial length of first helical tooth and the second helical tooth is 0.5：1.
Further, in an embodiment of the present invention：
Worm-gear assembly further includes worm gear mounting box, and worm gear is arranged in worm gear mounting box, and the transmission shaft and worm gear of worm gear
Mounting box connects, and worm component further includes mounting plate, and the power output shaft of motor is connect across mounting plate with worm-drive, installation
Plate is fixed on motor, and worm gear mounting box is configured to move to adjust the gap between worm gear and worm screw relative to mounting plate.
Further, in an embodiment of the present invention：
Slotted hole is provided on mounting plate, worm gear mounting box can be fixed on mounting plate by the cooperation of bolt and slotted hole.
Further, in an embodiment of the present invention：
Slotted hole is provided with multigroup, multigroup slotted hole array arrangement.
Further, in an embodiment of the present invention：
Worm gear is casting phosphor tin bronze material, and worm screw is steel alloy material.
The beneficial effects of the invention are as follows：The worm type of reduction gearing that the present invention is obtained by above-mentioned design, in use, motor
Drive worm screw along the axial rotation of its wheel shaft, when worm screw rotates, the helical tooth on wheel shaft is engaged with worm gear drives worm gear rotation.Snail
Worm and gear retarder utilizes the rate conversion of gear, motor winding number is decelerated to desired winding number, and obtain larger torque.
Since the pto shaft drive of wheel shaft and motor connects, and spiral teeth directional power output shaft extends and covers power
Output shaft, then in motor driving worm screw rotation, the active force of power output shaft can ensure motor in this way in the inside of wheel shaft
It is preferable with the concentricity of worm screw, avoid the deviation of concentricity is excessive from causing driving error.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of the worm type of reduction gearing at the first visual angle provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of worm component and worm gear provided in an embodiment of the present invention；
Fig. 3 is the fiting relation figure of worm screw provided in an embodiment of the present invention and motor；
Fig. 4 is the structural schematic diagram of the worm type of reduction gearing at the second visual angle provided in an embodiment of the present invention.
Icon：100- worm type of reduction gearing；110- Worm-gear assemblies；111- worm gears；112- worm gear mounting boxs；120- worm screws
Component；121- motors；121a- power output shafts；122- worm screws；122a- wheel shafts；122b- helical tooths；The first helical tooths of 1221-；
The second helical tooths of 1222-；123- mounting plates；123a- slotted holes；124- bolts.
Specific implementation mode
To keep the purpose, technical scheme and advantage of embodiment of the present invention clearer, implement below in conjunction with the present invention
The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without creative efforts, belongs to the present invention
The range of protection.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement guarantor below
The scope of the present invention of shield, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without creative efforts, belongs to the present invention
The range of protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it is to be understood that, term "center", " length ", "upper", "lower", "inner", "outside" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and letter
Change description, do not indicate or imply the indicated equipment or element must have a particular orientation, with specific azimuth configuration and
Operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase
Even, can also can be indirectly connected through an intermediary that the interaction of the connection or two elements inside two elements is closed
System.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood as the case may be
Meaning.
Embodiment
The present embodiment provides a kind of worm type of reduction gearing 100, please refer to Fig. 1.
Worm type of reduction gearing 100 includes Worm-gear assembly 110 and worm component 120.
Referring to Fig.1 and 2, wherein, Worm-gear assembly 110 includes worm gear 111.Worm component 120 includes can be with worm gear 111
The motor 121 that the worm screw 122 and driving worm screw 122 of engagement rotate, motor 121 includes power output shaft 121a, and worm screw 122 includes
Wheel shaft 122a and the helical tooth 122b in wheel shaft 122a circumferential directions, the power output shaft of wheel shaft 122a and motor 121 are set
121a is sequentially connected, and helical tooth 122b extends to power output shaft 121a and covers power output shaft 121a.
In use, motor 121 drives worm screw 122 along the axial rotation of its wheel shaft 122a, when worm screw 122 rotates, wheel shaft
Helical tooth 122b on 122a is engaged with worm gear 111 drives worm gear 111 to rotate.Worm type of reduction gearing 100 utilizes the speed of gear
Degree conversion, decelerates to desired winding number, and obtain larger torque by 121 winding number of motor.Due to wheel shaft 122a and motor 121
Power output shaft 121a be sequentially connected, and helical tooth 122b extends to power output shaft 121a and covers power output shaft
121a, then when motor 121 drives worm screw 122 to rotate, the active force of power output shaft 121a is in the inside of wheel shaft 122a, in this way
It can ensure that motor 121 and the concentricity of worm screw 122 are preferable, avoid the deviation of concentricity is excessive from causing driving error.
Further, in the present embodiment, one end of wheel shaft 122a is provided with blind hole, power output shaft 121a and blind hole mistake
It is full of cooperation.
By the interference fit between power output shaft 121a and wheel shaft 122a, it can better ensure that motor 121 drives snail
When bar 122 rotates, when the rotation of the power output shaft 121a of worm screw 122 and motor 121, concentricity is preferable, reduces driving error.
Fig. 3 is please referred to, in the present embodiment, the helical tooth 122b being arranged on wheel shaft 122a is the first helical tooth 1221,
The helical tooth 122b for extending to power output shaft 121a is the second helical tooth 1222, the axial length of the first helical tooth 1221 and the
The ratio between axial length of two helical tooths 1222 is 0.4~0.6：1.I.e. power output shaft 121a stretches into the length inside worm screw 122
Length ratio between the helical tooth 122b0 on wheel shaft 122a is 0.4~0.6：1.
The benefit being arranged in this way is that the output power predominant intermolecular forces of axis 121a are arranged in the inside of wheel shaft 122a, and
The length that power output shaft 121a is stretched into meets the axial length of the first helical tooth 1221 and the axial direction length of the second helical tooth 1222
The ratio between degree is 0.4~0.6：1, such ratio can better ensure that power output shaft 121a and the worm screw 122 of motor 121
Concentricity is preferable.
Optionally, in other embodiments, the axial direction of the axial length of the first helical tooth 1221 and the second helical tooth 1222
Length ratio is 0.5：1.
Further, Fig. 4 is please referred to, in the present embodiment, Worm-gear assembly 110 further includes worm gear mounting box 112, worm gear
111 are arranged in worm gear mounting box 112, and the transmission shaft of worm gear 111 is connect with worm gear mounting box 112, and worm component 120 also wraps
Mounting plate 123 is included, the power output shaft 121a of motor 121 passes through mounting plate 123 to be sequentially connected with worm gear 111, and mounting plate 123 is logical
It crosses bolt 124 and is fixed on motor 121, worm gear mounting box 112 is configured to move to adjust worm gear 111 relative to mounting plate 123
With the gap between worm screw 122.
Since the transmission shaft of worm gear 111 is connect with worm gear mounting box 112, then worm gear mounting box 112 moves, worm gear 111
And then it moves.The power output shaft 121a of motor 121 passes through mounting plate 123 to be sequentially connected with worm gear 111, and mounting plate 123 is fixed
In motor 121, then when mounting plate 123 moves, motor 121 is also moved with worm screw 122.Then when need adjust worm gear 111
When gap between worm screw 122, the relative position of worm gear mounting box 112 and mounting plate 123 need to be only adjusted.
By adjusting the relative position of worm gear mounting box 112 and mounting plate 123, it is adjusted between 111 worm screw 122 of worm gear
Gap, thus can avoid the gap between worm gear 111 worm screw 122 it is excessive and caused by driving error so that worm and gear slows down
Device 100 can be controlled relatively accurately.
Further, in the present embodiment, it is provided with slotted hole 123a on mounting plate 123.Such as Fig. 4, mounting plate 123 and snail
The relative movement direction for taking turns mounting box 112 is preset direction, and the length direction and preset direction of slotted hole 123a is almost the same.Separately
Outside, worm gear mounting box 112 can be fixed on mounting plate 123 by the cooperation of bolt 124 and slotted hole 123a.
By the way that bolt 124 to be fixed on to the different zones of slotted hole 123a, adjustable installation board 123 and worm gear mounting box
112 relative position, and then the gap between 111 worm screw 122 of worm gear can be adjusted.Between 111 worm screw 122 of avoidable worm gear
Gap it is excessive and caused by driving error.
In the present embodiment, slotted hole 123a is provided with multigroup, multigroup slotted hole 123a array arrangements.When regulating worm gear
When gap between 111 worm screws 122, worm gear mounting box 112 can be preferably fixed on mounting plate 123 in this way, avoid passing
It is mobile during dynamic.
In addition, in the present embodiment, worm gear 111 is casting phosphor tin bronze material, worm screw 122 is steel alloy material.Due to
Casting phosphor tin bronze and steel alloy all have higher intensity and wearability, thus can increase the intensity of worm gear 111 and worm screw 122
And wearability, improve the service life of worm type of reduction gearing 100.
The operation principle of the worm type of reduction gearing 100 of the present embodiment：
In use, motor 121 drives worm screw 122 along the axial rotation of its wheel shaft 122a, when worm screw 122 rotates, wheel shaft
Helical tooth 122b on 122a is engaged with worm gear 111 drives worm gear 111 to rotate.Worm type of reduction gearing 100 utilizes the speed of gear
Degree conversion, decelerates to desired winding number, and obtain larger torque by 121 winding number of motor.
Since the power output shaft 121a of wheel shaft 122a and motor 121 is sequentially connected, and helical tooth 122b is to power output
Axis 121a extends and covers power output shaft 121a, then when motor 121 drives worm screw 122 to rotate, power output shaft 121a's
Active force can ensure that motor 121 and the concentricity of worm screw 122 are preferable, avoid concentricity in this way in the inside of wheel shaft 122a
Deviation is excessive to cause driving error.
Since the transmission shaft of worm gear 111 is connect with worm gear mounting box 112, then worm gear mounting box 112 moves, worm gear 111
And then it moves.The power output shaft 121a of motor 121 passes through mounting plate 123 to be sequentially connected with worm gear 111, and mounting plate 123 is fixed
In motor 121, then when mounting plate 123 moves, motor 121 is also moved with worm screw 122.Then when need adjust worm gear 111
When gap between worm screw 122, the relative position of worm gear mounting box 112 and mounting plate 123 need to be only adjusted.
By the way that bolt 124 to be fixed on to the different zones of slotted hole 123a, adjustable installation board 123 and worm gear mounting box
112 relative position, and then the gap between 111 worm screw 122 of worm gear can be adjusted.Between 111 worm screw 122 of avoidable worm gear
Gap it is excessive and caused by driving error so that worm type of reduction gearing 100 can be controlled relatively accurately.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of worm type of reduction gearing, which is characterized in that including：
Worm-gear assembly, the Worm-gear assembly include worm gear；And
Worm component, the worm component include the motor of the worm screw that can be engaged with the worm gear and the driving worm screw rotation,
The motor includes power output shaft, and the worm screw includes wheel shaft and the helical tooth in the wheel shaft circumferential direction is arranged, described
Wheel shaft is connect with the pto shaft drive of the motor, and power output shaft described in the spiral teeth directional extends and covers described dynamic
Power output shaft.
2. worm type of reduction gearing according to claim 1, which is characterized in that the power of the wheel shaft and the motor is defeated
Shaft is interference fitted.
3. worm type of reduction gearing according to claim 2, which is characterized in that one end of the power output shaft is provided with
Blind hole, the wheel shaft are interference fitted with the blind hole.
4. worm type of reduction gearing according to claim 1 or 3, which is characterized in that described to be arranged on the wheel shaft
Helical tooth is the first helical tooth, and the helical tooth for extending to the power output shaft is the second helical tooth, first spiral
The ratio between the axial length of tooth and the axial length of second helical tooth are 0.4~0.6：1.
5. worm type of reduction gearing according to claim 4, which is characterized in that the axial length of first helical tooth with
The ratio between axial length of second helical tooth is 0.5：1.
6. worm type of reduction gearing according to claim 1, which is characterized in that the Worm-gear assembly further includes worm gear installation
Box, the worm gear is arranged in the worm gear mounting box, and the transmission shaft of the worm gear is connect with the worm gear mounting box, described
Worm component further includes mounting plate, and the power output shaft of the motor is connect across the mounting plate with the worm-drive, institute
It states mounting plate and is fixed on the motor, the worm gear mounting box is configured to move to adjust the snail relative to the mounting plate
Gap between wheel and the worm screw.
7. worm type of reduction gearing according to claim 6, which is characterized in that it is provided with slotted hole on the mounting plate,
The worm gear mounting box can be fixed on the mounting plate by the cooperation of bolt and slotted hole.
8. worm type of reduction gearing according to claim 7, which is characterized in that the slotted hole be provided with it is multigroup, it is multigroup
The slotted hole array arrangement.
9. worm type of reduction gearing according to claim 1, which is characterized in that the worm gear is casting phosphor tin bronze material
Matter.
10. worm type of reduction gearing according to claim 1, which is characterized in that the worm screw is steel alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810314388.0A CN108443418A (en) | 2018-04-09 | 2018-04-09 | A kind of worm type of reduction gearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810314388.0A CN108443418A (en) | 2018-04-09 | 2018-04-09 | A kind of worm type of reduction gearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108443418A true CN108443418A (en) | 2018-08-24 |
Family
ID=63199460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810314388.0A Pending CN108443418A (en) | 2018-04-09 | 2018-04-09 | A kind of worm type of reduction gearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108443418A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1671588A (en) * | 2002-04-17 | 2005-09-21 | 罗伯特-博希股份公司 | Steering gear which is free from backlash |
| CN1766368A (en) * | 2005-08-25 | 2006-05-03 | 贵州群建齿轮有限公司 | Side-clearance-free low-noise worm gear pair transmission device |
| CN201103669Y (en) * | 2007-11-27 | 2008-08-20 | 宁新华 | Anti-backlash device of worm wheel and worm |
| CN202659813U (en) * | 2012-04-26 | 2013-01-09 | 郝玉民 | Clearance-free worm gear device |
| JP2016120729A (en) * | 2014-12-24 | 2016-07-07 | 日本精工株式会社 | Electric assist device and its manufacturing method |
| CN106032839A (en) * | 2015-03-20 | 2016-10-19 | 王卓 | Worm and gear drive mechanism and worm and gear speed reducer |
-
2018
- 2018-04-09 CN CN201810314388.0A patent/CN108443418A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1671588A (en) * | 2002-04-17 | 2005-09-21 | 罗伯特-博希股份公司 | Steering gear which is free from backlash |
| CN1766368A (en) * | 2005-08-25 | 2006-05-03 | 贵州群建齿轮有限公司 | Side-clearance-free low-noise worm gear pair transmission device |
| CN201103669Y (en) * | 2007-11-27 | 2008-08-20 | 宁新华 | Anti-backlash device of worm wheel and worm |
| CN202659813U (en) * | 2012-04-26 | 2013-01-09 | 郝玉民 | Clearance-free worm gear device |
| JP2016120729A (en) * | 2014-12-24 | 2016-07-07 | 日本精工株式会社 | Electric assist device and its manufacturing method |
| CN106032839A (en) * | 2015-03-20 | 2016-10-19 | 王卓 | Worm and gear drive mechanism and worm and gear speed reducer |
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Application publication date: 20180824 |