CN206338328U - A kind of sliding bearing and improved compound epicyclic reduction gear - Google Patents
A kind of sliding bearing and improved compound epicyclic reduction gear Download PDFInfo
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- CN206338328U CN206338328U CN201621323383.7U CN201621323383U CN206338328U CN 206338328 U CN206338328 U CN 206338328U CN 201621323383 U CN201621323383 U CN 201621323383U CN 206338328 U CN206338328 U CN 206338328U
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- sliding bearing
- level
- gear
- planet wheel
- primary planet
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Abstract
The utility model is related to sliding bearing and gear drive technical field, disclose a kind of sliding bearing and improved compound epicyclic reduction gear, wherein sliding bearing includes cylindrical shape steel body and casts in the copper alloy of outer body, outer body is additionally provided with screw thread provided with a circle groove, foregoing outer body.The utility model outer body increase screw thread can strengthen the adhesion of copper alloy and steel body outer surface, it is to avoid copper alloy come off from body or bearing two ends cracking phenomena, increase the service life.
Description
Technical field
The utility model is related to sliding bearing and gear drive technical field, more particularly to a kind of sliding axle
Hold and improved compound epicyclic reduction gear.
Background technology
The structure type of sliding bearing is varied, has in the planet wheel spindle of planetary reduction gear and between planetary gear one kind
Columnar sliding bearing, the cylindrical bearing body being mainly made including steel and the copper cast on the outside of bearing body are closed
Gold, is provided with radial direction oil-through hole on bearing body and copper alloy, to improve the adhesion of bearing body and copper alloy, in bearing sheet
External side can prevent that copper alloy from coming off from bearing body provided with a circle groove, but this sliding bearing was used for a long time
Bearing body and copper alloy cracking phenomena are easily being produced at the two ends of sliding bearing in journey, is causing the planetary reduction gear can not
Run well.
Size of the sliding bearing in planetary reduction gear is also critically important, if design is unreasonable, and the planet produced subtracts
Fast device will often break down, even if still can often be broken down after renewal part.For example there are a kind of NGW types of two-stage gradually
Burst at the seams straight spur gear planetary reduction gear, and the planetary reduction gear is mainly used in the plant equipment such as metallurgy, chemical industry, and the planet subtracts
Fast device includes casing and is located in casing and coaxial one-level ring gear and two grades of ring gears, and one-level ring gear is engaged with three phases
Same primary planet wheel, three primary planet wheels engage one-level sun gear input shaft jointly；Two grades of ring gears are engaged with four phases
Same secondary planet wheel, four secondary planet wheels engage secondary solar gear jointly；Each primary planet wheel is built with an one-level
Sliding bearing, one-level sliding bearing is arranged on primary planet wheel shaft, and three primary planet wheel shafts are each attached to primary planet carrier
On, the output end spline of primary planet carrier and the input spline connection of secondary solar gear；Each secondary planet wheel is built with one
Individual two grades of sliding bearings, two grades of sliding bearings are arranged on secondary planet wheel shaft, and four secondary planet wheel shafts are each attached to two grades
On planet carrier, the output end of secondary planet frame as planetary reduction gear output end.Wherein one-level sun gear input shaft is used to connect
The output shaft of motor is connect, it is necessary to bear 1400r/min input speed, the reference diameter of one-level sun gear input shaft is
63mm, the reference diameter of primary planet wheel is 171.5mm, and the reference diameter of one-level ring gear is 409.5mm, and one-level is slided
The external diameter of bearing is 110mm.The planetary reduction gear has big compact conformation, gearratio, transmission efficiency, input and output shaft concentric
The characteristics of, but occur the failure that can not be rotated in actual use.The planetary reduction gear is occurred using about 6000 working hours
There is second of failure in the working hours of on-line running about 2900 after first time failure, reparation, because such planetary reduction gear is big
The core drive apparatus that often operates in type machinery or mechanical system, once occur stalling can only stop production to overhaul, enterprise will be given
Bring larger economic loss.The superficial phenomenon of failure is identical twice, is all that the damage of primary planet mechanism is serious.
Utility model content
There is provided a kind of sliding bearing and improved two-stage row to overcome above-mentioned deficiency of the prior art for the utility model
Star decelerator.
The utility model is achieved through the following technical solutions above-mentioned purpose.
A kind of sliding bearing, including cylindrical shape steel body and the copper alloy for casting in outer body, outer body are provided with
One circle groove, foregoing outer body is additionally provided with screw thread.
This programme can strengthen the adhesion of copper alloy and steel body outer surface in outer body increase screw thread, it is to avoid copper
Alloy come off from body or bearing two ends cracking phenomena, increase the service life.
As further improved structure type, the groove of above-mentioned outer body is located at the axial interlude of body, is located at
The both sides of outer body groove are equipped with above-mentioned screw thread, and the screw thread of groove both sides is oppositely oriented, screw thread in body two
Closed at end, the structure can further strengthen the adhesion of copper alloy and steel body outer surface.
It is described below a kind of improved compound epicyclic reduction gear for applying above-mentioned sliding bearing, including casing and is located at case
Internal and coaxial one-level ring gear and two grades of ring gears, one-level ring gear are engaged with three identical primary planet wheels, three
Primary planet wheel engages one-level sun gear input shaft jointly, and two grades of ring gears are engaged with four identical secondary planet wheels, four
Secondary planet wheel engages secondary solar gear jointly；Each primary planet wheel is built with an one-level sliding bearing, one-level sliding axle
Hold on primary planet wheel shaft, three primary planet wheel shafts are each attached on primary planet carrier, the output of primary planet carrier
The input external splines of internal spline and secondary solar gear is held to connect；Each secondary planet wheel built with two grades of sliding bearings,
Two grades of sliding bearings are arranged on primary planet wheel shaft, and four secondary planet wheel shafts are each attached on secondary planet frame, two grades of rows
The output end of carrier is as the output end of planetary reduction gear, and the wherein reference diameter of one-level sun gear input shaft is 63mm, one
The reference diameter of level planetary gear is 171.5mm, and the reference diameter of one-level ring gear is 409.5mm, the planetary reduction gear
Improvement is that foregoing one-level sliding bearing uses above-mentioned sliding bearing, and the external diameter of one-level sliding bearing is 120mm.
Although this programme is integrated structure, the external diameter of one-level sliding bearing and one for improving one-level sliding bearing itself
The internal diameter of level planetary gear, but the bearing capacity of one-level sliding bearing is increased by these improvement, while reducing one-level row
The quality of star-wheel, reduces centrifugal force, achieves good technique effect, does not occur stalling event by actually used 24 months
Barrier, regular in-site measurement vibration and temperature rise are also no abnormal.
As the further improved structure type of above-mentioned planetary reduction gear, the external diameter and one-level of above-mentioned one-level sliding bearing
Diametric clearance between the internal diameter of planetary gear is 0.25mm, this gap value for reduction temperature rise, prevent from stinging weldering, ensure the shape of oil film
Into being very important, by not occurring within actually used 24 months stall, regular in-site measurement vibration and temperature rise are not yet
Note abnormalities.
The input speed of improved compound epicyclic reduction gear when in use in this specification subtracts by primary planet mechanism
Rotating speed is reduced after speed, thus it is relatively low for secondary planet institution requests, it need to only be set according to existing NGW types planetary reduction gear
Meter handbook, which is designed, can meet use requirement, be used in addition required for the improved compound epicyclic reduction gear in this specification
Rolling bearing, thrust bearing etc. can be designed and refer to mechanical handbook to enter according to existing NGW types planetary reduction gear
Row type selecting, here is omitted.
The utility model mainly has the advantages that compared with prior art：On sliding bearing, copper conjunction is strengthened
Gold and the adhesion of steel body outer surface, it is to avoid copper alloy come off from body or bearing two ends cracking phenomena, extension
The service life of sliding bearing；On improved compound epicyclic reduction gear, the bearing capacity of one-level sliding bearing is increased, simultaneously
The quality of primary planet wheel is reduced, centrifugal force is reduced, good technique effect is achieved, by actually used 24 months not
There is stall, regular in-site measurement vibration and temperature rise are also no abnormal.
Brief description of the drawings
Fig. 1 is the cross-sectional view of sliding bearing in the utility model embodiment.
Fig. 2 is the cross-sectional view of compound epicyclic reduction gear in the utility model embodiment.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings.Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as
Limitation to this patent.
For more succinct explanation the present embodiment, some in accompanying drawing or explanation well known to a person skilled in the art but with this
The incoherent parts of main contents of creation can have been omitted.In addition for ease of statement, some parts have province in accompanying drawing
Slightly, zoom in or out, but do not represent the size or entire infrastructure of actual product.
Embodiment：
As shown in figure 1, a kind of sliding bearing, including cylindrical shape steel body 81 and the copper alloy for casting in the outside of body 81
82, the axial interlude in the outside of body 81 is provided with oppositely oriented screw thread provided with a circle groove, the both sides of the outside groove of body 81, and
Closed at both ends of the screw thread of groove both sides in body 81.
The sliding bearing of the present embodiment can strengthen the adhesion of copper alloy 82 and the outer surface of steel body 81, it is to avoid copper is closed
Gold 82 come off from body 81 or bearing two ends cracking phenomena, increase the service life.
As shown in Fig. 2 a kind of improved compound epicyclic reduction gear of the above-mentioned sliding bearing of application is also disclosed in the present embodiment,
Including casing 1 and it is located in casing 1 and coaxial one-level ring gear 21 and two grades of ring gears 31, one-level ring gear 21 is engaged with three
Individual identical primary planet wheel 22, three primary planet wheels 22 engage one-level sun gear input shaft 23, two grades of ring gears 31 jointly
Four identical secondary planet wheels 32 are engaged with, four secondary planet wheels 32 engage secondary solar gear 33 jointly.Each one-level row
Star-wheel 22 is arranged on primary planet wheel shaft 25 built with an one-level sliding bearing 24, one-level sliding bearing 24, three one-levels
Planet wheel spindle 25 is each attached on primary planet carrier 26, the output end spline of primary planet carrier 26 and the input of secondary solar gear 33
Hold spline connection；Each secondary planet wheel 32 is arranged on two grades built with two grades of sliding bearings 34, two grades of sliding bearings 34
On planet wheel spindle 35, four secondary planet wheel shafts 35 are each attached on secondary planet frame 36, and the output end of secondary planet frame 36 is made
For the output end of planetary reduction gear.Wherein the reference diameter of one-level sun gear input shaft 23 is 63mm, primary planet wheel 22
Reference diameter is 171.5mm, and the reference diameter of one-level ring gear 21 is 409.5mm, and the improvement of the planetary reduction gear is
One-level sliding bearing 24 uses the sliding bearing of aforementioned structure form, and the external diameter of one-level sliding bearing 24 is 120mm.
Diametric clearance between the external diameter of one-level sliding bearing 24 and the internal diameter of primary planet wheel 22 is 0.25mm, this gap
Value is very important for reduction temperature rise, the formation for preventing from stinging weldering, ensuring oil film.
Although the present embodiment be improve the integrated structure of one-level sliding bearing 24 itself, one-level sliding bearing 24 it is outer
Footpath and the internal diameter of primary planet wheel 22, but the bearing capacity of one-level sliding bearing 24 is increased by these improvement, subtract simultaneously
The small quality of primary planet wheel 22, reduces centrifugal force, achieves good technique effect, by actually used 24 months not
There is stall, regular in-site measurement vibration and temperature rise are also no abnormal.
A specific embodiment of the present utility model is these are only, but design concept of the present utility model is not limited to
This, the insubstantial modifications that all utilization the utility model designs are made to the utility model each fall within protection of the present utility model
Within the scope of.
Claims (4)
1. a kind of sliding bearing, including cylindrical shape steel body and the copper alloy for casting in outer body, outer body are provided with one
Enclose groove, it is characterised in that described outer body is additionally provided with screw thread.
2. sliding bearing according to claim 1, it is characterised in that the groove of described outer body is located at body axial direction
Interlude, is equipped with described screw thread positioned at the both sides of outer body groove, and the screw thread of groove both sides oppositely oriented, screw thread
In the closed at both ends of body.
3. improved compound epicyclic reduction gear, including casing and it is located in casing and coaxial one-level ring gear and two grades of internal tooths
Circle, one-level ring gear is engaged with three identical primary planet wheels, and three primary planet wheels engage the input of one-level sun gear jointly
Axle, two grades of ring gears are engaged with four identical secondary planet wheels, and four secondary planet wheels engage secondary solar gear jointly；Each
Primary planet wheel is arranged on primary planet wheel shaft built with an one-level sliding bearing, one-level sliding bearing, three one-level rows
Spider gear shaft is each attached on primary planet carrier, the output end internal spline of primary planet carrier and the input external splines of secondary solar gear
Connection；Each secondary planet wheel is arranged on secondary planet wheel shaft built with two grades of sliding bearings, two grades of sliding bearings, and four
Individual secondary planet wheel shaft is each attached on secondary planet frame, the output end of secondary planet frame as planetary reduction gear output end,
Wherein the reference diameter of one-level sun gear input shaft is 63mm, and the reference diameter of primary planet wheel is in 171.5mm, one-level
The reference diameter of gear ring is 409.5mm, it is characterised in that described one-level sliding bearing is using described in claim 1 or 2
Sliding bearing, and the external diameter of one-level sliding bearing is 120mm.
4. improved compound epicyclic reduction gear according to claim 3, it is characterised in that described one-level sliding bearing
Diametric clearance between the internal diameter of external diameter and primary planet wheel is 0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621323383.7U CN206338328U (en) | 2016-12-05 | 2016-12-05 | A kind of sliding bearing and improved compound epicyclic reduction gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621323383.7U CN206338328U (en) | 2016-12-05 | 2016-12-05 | A kind of sliding bearing and improved compound epicyclic reduction gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206338328U true CN206338328U (en) | 2017-07-18 |
Family
ID=59307390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621323383.7U Expired - Fee Related CN206338328U (en) | 2016-12-05 | 2016-12-05 | A kind of sliding bearing and improved compound epicyclic reduction gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206338328U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027198A (en) * | 2018-10-09 | 2018-12-18 | 天地科技股份有限公司上海分公司 | Double planetary reduction gear ring gear combines stop mechanism and the deceleration device comprising it |
-
2016
- 2016-12-05 CN CN201621323383.7U patent/CN206338328U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027198A (en) * | 2018-10-09 | 2018-12-18 | 天地科技股份有限公司上海分公司 | Double planetary reduction gear ring gear combines stop mechanism and the deceleration device comprising it |
| CN109027198B (en) * | 2018-10-09 | 2024-02-02 | 天地科技股份有限公司上海分公司 | Double-stage planetary reducer inner gear ring combined stop mechanism and reduction gear comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 450001 science avenue of Zhengzhou high tech Industrial Development Zone, Zhengzhou, Henan Province, No. Patentee after: Zhengzhou Machinery Research Institute Co., Ltd. Address before: Fengyang high tech Industrial Development Zone, Henan province Zhengzhou city 450001 Street No. 10 Patentee before: Zhengzhou Research Institute of Mechanical Engineering |
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| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170718 Termination date: 20201205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |