CN208503365U - Small size reduction gearbox - Google Patents
Small size reduction gearbox Download PDFInfo
- Publication number
- CN208503365U CN208503365U CN201821118705.3U CN201821118705U CN208503365U CN 208503365 U CN208503365 U CN 208503365U CN 201821118705 U CN201821118705 U CN 201821118705U CN 208503365 U CN208503365 U CN 208503365U
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- fixed
- section
- reduction gearbox
- changeover portion
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- General Details Of Gearings (AREA)
Abstract
A kind of the purpose of the utility model is to provide volumes smaller, good airproof performance will not oil leak small size reduction gearbox.A kind of small size reduction gearbox, including involute gear, with the driven gear component of involute gear linkage, the involute gear is at least by the first fixed section, engaged section, changeover portion and the second fixed section are constituted, the engaged section is between changeover portion and the first fixed section, the changeover portion is between the second fixed section and engaged section, involute gear gear hobbing is to obtain the engaged section and changeover portion, first fixed section is fixed by first bearing and cabinet, it is arranged on the involute gear and is fixed with axle sleeve, the axle sleeve is constituted by one and two, axle sleeve, axle sleeve, one outer diameter of the axle sleeve is greater than two outer diameters of the axle sleeve, one, the axle sleeve is set in outside changeover portion, two, the axle sleeve is set in outside the second fixed section, second bearing is arranged on two, the axle sleeve.
Description
Technical field
The utility model relates to a kind of small size reduction gearboxes.
Background technique
Reduction gearbox includes input gear, several transmission gears and reduction gearbox output shaft, and input gear and motor output shaft join
Dynamic, input gear rotation is to rotate the rotation to realize reduction gearbox output shaft, the driving cog of some reduction gearboxes with nutating gear
Wheel is involute gear, and the both ends of involute gear pass through bearing respectively and fix with cabinet, the depth and involute teeth of reduction gearbox
It is related to take turns the distance between bearings at both ends.
Cutter processes on involute gear blank and still has ten millimeters or so of stroke after tooth form, so that involute teeth
Wheel is formed with engaged section and changeover portion, i.e. involute gear blank also will form one section of groove after processing tooth form tooth socket,
The depth and width of the groove, groove profile are not all suitable for engaging with transmission gear, so that there is one section of part unrestrained on involute gear
Take, it is contemplated that also bearing can not be arranged on the changeover portion of transmission gear in the problem of reduction gearbox place of being connected to motor seals；Due to
The problem of processing technology, can not be used for fixing bearing so that being formed on involute gear can neither be used to engage with gear
Changeover portion so that the more satisfactory set depth of the depth of reduction gearbox is longer, so that the volume of reduction gearbox is larger.
Wherein, if bearing is directly anchored on the changeover portion of involute gear, since there are groove, bearings on changeover portion
It can become smaller with the contact surface of involute gear, under temperature rising condition, involute gear rotation, grease is easily from bearing inner race
It is thrown away between involute gear.
Summary of the invention
A kind of the purpose of the utility model is to provide volumes smaller, good airproof performance will not oil leak small size reduction gearbox.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of small size reduction gearbox, including for
The involute gear of motor output shaft linkage, the driven gear component with involute gear linkage, the driven wheel assembly is at least
Including a driven wheel and the reduction gearbox output shaft fixed with driven wheel, motor output shaft rotation is to drive reduction gearbox output shaft to turn
Dynamic, the involute gear is at least made of the first fixed section, engaged section, changeover portion and the second fixed section, the engagement section
Between changeover portion and the first fixed section, the changeover portion is between the second fixed section and engaged section, involute gear gear hobbing
To obtain the engaged section and changeover portion, first fixed section is fixed by first bearing and cabinet, the involute gear
On be arranged and be fixed with axle sleeve, the axle sleeve is constituted by one and two, axle sleeve, axle sleeve, and one outer diameter of the axle sleeve is greater than the axis
Two outer diameters are covered, one, the axle sleeve is set in outside changeover portion, and two, the axle sleeve is set in outside the second fixed section, the axle sleeve
Second bearing is arranged on two, the second bearing outer ring is fixed with cabinet, the second bearing inner ring axial face and axle sleeve
One axial face offsets.
The utility model is fixed on axle sleeve by the fixed hub on the changeover portion of involute gear, then by second bearing
On, so that fixation position of the fixation position of second bearing from first bearing is closer, so that the setting of the utility model reduction gearbox is gradually
Involute gear position can be done thinner, so that reduction gearbox volume is smaller.Wherein, the setting of one, the axle sleeve of axle sleeve is so that the second axis
Position after pressure-bearing dress can determine that, can guarantee that second bearing can be installed in place.Wherein, by two, the axle sleeve of axle sleeve to guarantee
The contact area of second bearing, so that the fixation of second bearing is more stable.
Preferably, the engaged section outer diameter is greater than the changeover portion outer diameter, the axle sleeve and involute gear it is fixed with
One, axle sleeve is set to be in contact with engaged section axial face.Above-mentioned setting is used for the positioning of axle sleeve, fixes convenient for the press fitting of axle sleeve.
Preferably, on the involute gear, two inner edges of the axle sleeve and the second fixed section outer rim is rounded sets
It sets.Above-mentioned setting is so that axle sleeve inner circumferential wall can be close to involute gear peripheral outer wall, to improve leakproofness, to avoid grease
It is leaked out from the reduction gearbox place of being connected to motor.
Preferably, described axle sleeve the inner surface and the outer surface is coated with sealant.Above-mentioned setting is to improve the close of reduction gearbox
Feng Xing.
Preferably, one, the axle sleeve is equipped with oil sealing between cabinet.Above-mentioned setting is to improve the leakproofness of reduction gearbox.
Preferably, the involute gear is equipped with cooperation section, the cooperation Duan Chengyi far from one end of the first fixed section
Font is arranged with the shaft coupling that cross section outer rim is square in the cooperation section, and the output end of motor output shaft is formed with a word
The mating groove of type, the shaft coupling close-fitting in the mating groove, the output end of the motor output shaft by 3rd bearing with
Motor case is fixed.In above-mentioned setting, the cooperation section of involute gear is protruded into motor and is linked with motor output shaft, shaft coupling
Device be also be set in the mating groove of motor output shaft so that reduction gearbox can do it is thinner so that the volume of reduction gearbox is smaller.
Preferably, the reduction gearbox case lid is formed with several first fixation holes, the reduction gearbox is by fixing piece and admittedly
The fixed plate for determining position is fixed, and the fixed plate is formed with the second fixation hole, and the fixing piece includes fastening screw, nut, gold
Belong to set, rubber sleeve, the first rubber ring and the second rubber ring, the reduction gearbox case lid and fixed plate are fixed so that rubber sleeve is positioned at the
In one fixation hole, the rubber sleeve is set in outside metallic sheath, and the screw thread position of the fastening screw passes through metallic sheath and second and consolidates
Determine hole, between fastening screw head and metallic sheath, second rubber ring is located at metallic sheath and consolidates first rubber ring
Between fixed board, the metallic sheath and rubber sleeve are between the first rubber ring and the second rubber ring.When reduction gearbox work, rubber
Set, the first rubber ring and the second rubber ring are used for the bumper and absorbing shock of reduction gearbox case lid and fixed plate junction, to reduce reduction gearbox
Vibration when running.Wherein, fixed plate is the template part of various reduction gearbox installation places, such as the frame section of wheel-chair.
Preferably, being arranged with gasket on the fastening screw, the gasket is located at fastening screw head and the first rubber
Between circle.Above-mentioned setting is so that the fixed effect of reduction gearbox is more preferable.
The utility model utilizes the changeover portion of involute gear, by axle sleeve being arranged on changeover portion in order to the
The fixation of two bearings so that first bearing between second bearing at a distance from it is closer, while the cooperation section of involute gear is to protrude into
Motor with motor output shaft with what is linked, and the reduction gearbox of the utility model can be made thinner, the body of the reduction gearbox of the utility model
Product is smaller；The utility model is by being coated with sealant in axle sleeve surfaces externally and internally, so that the better tightness of the utility model, no
Oil is had to leak out from the junction of reduction gearbox and motor.
Detailed description of the invention
Fig. 1 is a kind of cross-sectional view of the utility model；
Fig. 2 is a kind of structural schematic diagram of the involute gear of the utility model；
Fig. 3 be the involute gear of the utility model, axle sleeve, second bearing a kind of cooperation figure；
Fig. 4 is a kind of perspective view of the explosion of the fastener of the utility model；
Fig. 5 is a kind of structural schematic diagram when the fastener of the utility model uses.
Specific embodiment
The utility model is further described below according to the drawings and specific embodiments.
As shown in Fig. 1 to Fig. 3, a kind of small size reduction gearbox of the utility model, including for linking with motor output shaft 1
Involute gear 2, with involute gear 2 link driven gear component, driven wheel assembly include at least a driven wheel 31
And the reduction gearbox output shaft 32 fixed with driven wheel 31, the rotation of motor output shaft 1 is to drive reduction gearbox output shaft 32 to rotate.
Involute gear 2 from the first fixed section 21, engaged section 22, changeover portion 23, the second fixed section 24 and with 25 structure of section
At engaged section 22 is located between changeover portion 23 and the first fixed section 21, and changeover portion 23 is located at the second fixed section 24 and engaged section 22
Between, the first fixed section 21 is located at the both ends of involute gear 2 with cooperation section 25, and 2 gear hobbing of involute gear is to obtain described nibble
Close section 22 and changeover portion 23.
First fixed section 21 is fixed by the cabinet 30 of first bearing 33 and reduction gearbox, is arranged fixation on involute gear 2
There is axle sleeve 4, axle sleeve 4 is made of one 41, axle sleeve and two 42, axle sleeve, and one 41 outer diameter of axle sleeve are greater than two 42 outer diameters of axle sleeve, axis
Set is set in outside changeover portion 23 for one 41, and two 42, axle sleeve are set in outside the second fixed section 24, and the is arranged on two 42, axle sleeve
Two bearings 34,34 outer ring of second bearing and cabinet 30 are fixed, one 41 axial face phase of 34 inner ring axial face of second bearing and axle sleeve
It supports.
22 outer diameter of engaged section be greater than 23 outer diameter of changeover portion, axle sleeve 4 and the fixation of involute gear 2 so that one 41, axle sleeve with nibble
22 axial face of section is closed to be in contact.For 4 close-fitting of axle sleeve on involute gear 2,4 inner edge of axle sleeve and 24 outer rim of the second fixed section are in round
Shape setting, 4 the inner surface and the outer surface of axle sleeve are coated with sealant, and one 41, axle sleeve is equipped with oil sealing 35 between cabinet 30.
Involute gear 2 is equipped with the cooperation section 25 far from one end of the first fixed section 21, and cooperation section 25 is in "-" type, matches
It closes and is arranged with the shaft coupling 36 that cross section outer rim is square in section 25, the output end of motor output shaft 5 is formed with matching for "-" type
Close slot, 36 close-fitting of shaft coupling made of plastic material in mating groove, the output end of motor output shaft 1 by 3rd bearing 11 with
Motor case 12 is fixed.
As shown in Fig. 4, Fig. 5, reduction gearbox case lid 40 is formed with several first fixation holes, and reduction gearbox case lid 40 passes through fixing piece
Fixed with the fixed plate 41 of fixed position, fixed plate 41 is formed with the second fixation hole, and fixing piece includes fastening screw 61, nut
62, metallic sheath 63, rubber sleeve 64, the first rubber ring 65 and the second rubber ring 66, reduction gearbox case lid 40 and fixed plate 51 it is fixed with
It is respectively positioned on rubber sleeve 64 and metallic sheath 63 in first fixation hole, rubber sleeve 64 is set in outside metallic sheath 63, fastening screw 61
Screw thread position passes through metallic sheath 63 and the second fixation hole, the first rubber ring 65 be located at 61 head of fastening screw and metallic sheath 63 it
Between, for the second rubber ring 66 between metallic sheath 63 and fixed plate 41, metallic sheath 63 and rubber sleeve 64 are located at the first rubber ring 65
Between the second rubber ring 66, gasket 67 is arranged on fastening screw 61, gasket 67 is located at 61 head of fastening screw and the first rubber
Between cushion rubber 65.
The utility model utilizes the changeover portion of involute gear, by axle sleeve being arranged on changeover portion in order to the
The fixation of two bearings so that first bearing between second bearing at a distance from it is closer, while the cooperation section of involute gear is to protrude into
Motor with motor output shaft with what is linked, and the reduction gearbox of the utility model can be made thinner, the body of the reduction gearbox of the utility model
Product is smaller；The utility model is by being coated with sealant in axle sleeve surfaces externally and internally, so that the better tightness of the utility model, no
Oil is had to leak out from the junction of reduction gearbox and motor.
Claims (8)
1. a kind of small size reduction gearbox, it is characterised in that including for linking with motor output shaft involute gear, with gradually open
The driven gear component of line gear linkage, the driven wheel assembly include at least a driven wheel and the deceleration fixed with driven wheel
Case output shaft, motor output shaft rotate to drive reduction gearbox output shaft to rotate, the involute gear at least by the first fixed section,
Engaged section, changeover portion and the second fixed section are constituted, and the engaged section is between changeover portion and the first fixed section, the changeover portion
Between the second fixed section and engaged section, to obtain the engaged section and changeover portion, described first is solid for involute gear gear hobbing
Determine section to fix by first bearing and cabinet, be arranged on the involute gear and be fixed with axle sleeve, the axle sleeve is by one, axle sleeve
It is constituted with two, axle sleeve, one outer diameter of the axle sleeve is greater than two outer diameters of the axle sleeve, and one, the axle sleeve is set in changeover portion
Outside, two, the axle sleeve is set in outside the second fixed section, is arranged with second bearing on two, the axle sleeve, outside the second bearing
Circle is fixed with cabinet, and the second bearing inner ring axial face offsets with one axial face of axle sleeve.
2. small size reduction gearbox according to claim 1, it is characterised in that the engaged section outer diameter is greater than the changeover portion
Outer diameter, the axle sleeve is fixed with involute gear so that one, axle sleeve is in contact with engaged section axial face.
3. small size reduction gearbox according to claim 1, it is characterised in that the axle sleeve close-fitting is in the involute gear
On, two inner edges of the axle sleeve and the rounded setting of the second fixed section outer rim.
4. small size reduction gearbox according to claim 1 or 3, it is characterised in that described axle sleeve the inner surface and the outer surface applies
There is sealant.
5. small size reduction gearbox according to claim 1, it is characterised in that one, the axle sleeve is equipped with oil between cabinet
Envelope.
6. small size reduction gearbox according to claim 1, it is characterised in that the involute gear is far from the first fixed section
One end be equipped with cooperation section, the cooperation section is arranged with the shaft coupling that cross section outer rim is square in the cooperation section in "-" type
Device, the output end of motor output shaft are formed with the mating groove of "-" type, and the shaft coupling close-fitting is in the mating groove, the electricity
The output end of machine output shaft is fixed by 3rd bearing and motor case.
7. small size reduction gearbox according to claim 1, it is characterised in that the reduction gearbox case lid is formed with several first
Fixation hole, the reduction gearbox are fixed by the fixed plate of fixing piece and fixed position, and the fixed plate is formed with the second fixation hole,
The fixing piece includes fastening screw, nut, metallic sheath, rubber sleeve, the first rubber ring and the second rubber ring, the reduction gearbox case
Lid is fixed with fixed plate so that rubber sleeve is located in the first fixation hole, and the rubber sleeve is set in outside metallic sheath, the fastening spiral shell
The screw thread position of nail passes through metallic sheath and the second fixation hole, first rubber ring be located at fastening screw head and metallic sheath it
Between, for second rubber ring between metallic sheath and fixed plate, the metallic sheath and rubber sleeve are located at the first rubber ring and
Between two rubber rings.
8. small size reduction gearbox according to claim 7, it is characterised in that gasket is arranged on the fastening screw, it is described
Gasket is between fastening screw head and the first rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821118705.3U CN208503365U (en) | 2018-07-16 | 2018-07-16 | Small size reduction gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821118705.3U CN208503365U (en) | 2018-07-16 | 2018-07-16 | Small size reduction gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208503365U true CN208503365U (en) | 2019-02-15 |
Family
ID=65284833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821118705.3U Withdrawn - After Issue CN208503365U (en) | 2018-07-16 | 2018-07-16 | Small size reduction gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208503365U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679165A (en) * | 2018-07-16 | 2018-10-19 | 浙江联宜电机有限公司 | Small size reduction box |
| CN111135911A (en) * | 2019-12-17 | 2020-05-12 | 山东黄金地质矿产勘查有限公司 | Environment-friendly rod mill and using method thereof |
-
2018
- 2018-07-16 CN CN201821118705.3U patent/CN208503365U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679165A (en) * | 2018-07-16 | 2018-10-19 | 浙江联宜电机有限公司 | Small size reduction box |
| CN108679165B (en) * | 2018-07-16 | 2023-10-03 | 浙江联宜电机有限公司 | Small-size reduction gearbox |
| CN111135911A (en) * | 2019-12-17 | 2020-05-12 | 山东黄金地质矿产勘查有限公司 | Environment-friendly rod mill and using method thereof |
| CN111135911B (en) * | 2019-12-17 | 2021-05-11 | 山东黄金地质矿产勘查有限公司 | Environment-friendly rod mill and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203743324U (en) | Pure-roller needle meshing RV speed reducer | |
| CN208503365U (en) | Small size reduction gearbox | |
| CN206072245U (en) | For the firm wheel of harmonic speed reducer, harmonic speed reducer and robot | |
| CN202659850U (en) | Dual seal limit type one-way belt pulley | |
| CN209800675U (en) | Wave generator and harmonic speed reducer with same | |
| CN108679165A (en) | Small size reduction box | |
| CN206738431U (en) | A kind of attachment structure of power takeoff and engine | |
| CN211599417U (en) | Special planetary reducer of air cycle | |
| CN206790250U (en) | A kind of wheel hub motor applied to electric car | |
| CN109139815A (en) | A kind of closed cycloid speed reducer of industrial robot high-precision | |
| CN210327262U (en) | Power device | |
| CN100543333C (en) | Protection sheet | |
| CN203926676U (en) | Differential mechanism | |
| CN207634653U (en) | Retarder combination dynamic sealing device | |
| CN215720714U (en) | Speed reducer for welding machine | |
| CN203926666U (en) | Automobile and speed reducer thereof | |
| CN210290672U (en) | Novel gear box | |
| CN207687311U (en) | Yaw variable propeller gearbox export structure | |
| CN210770140U (en) | Electric forklift reduction gearbox with self-shielding type ventilation structure | |
| CN206802202U (en) | A kind of worm reduction box | |
| CN104791596B (en) | Automatic rotation type differential pressure power oil return multi-head pump | |
| CN2886234Y (en) | Planet gear transmission case output shaft sealing device | |
| CN215673487U (en) | Three-stage combined planetary reducer instrument | |
| CN220646713U (en) | Oil seal device for shaft head of speed reducer | |
| CN210889967U (en) | Multifunctional planetary reducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190215 Effective date of abandoning: 20231003 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190215 Effective date of abandoning: 20231003 |