CN209324940U - A kind of no radial journal bearing gear transmission structure - Google Patents
A kind of no radial journal bearing gear transmission structure Download PDFInfo
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- CN209324940U CN209324940U CN201920053714.7U CN201920053714U CN209324940U CN 209324940 U CN209324940 U CN 209324940U CN 201920053714 U CN201920053714 U CN 201920053714U CN 209324940 U CN209324940 U CN 209324940U
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- central gear
- gear
- stop collar
- idle pulley
- journal bearing
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Abstract
The utility model belongs to mechanical equipment technical field, and in particular to a kind of no radial journal bearing gear transmission structure, including wheel for inputting, idle pulley, central gear, stop collar and bearing, power are inputted by wheel for inputting, are passed to central gear by idle pulley and are exported；The idle pulley is meshed with central gear, and idle pulley is positioned by bearing；Central gear passes through stop collar radial positioning；Stop collar is arranged in idle pulley and central gear two sides；Stop collar and central gear are using interference fit；If the stop collar is made to play positioning action, the reference circle size of the associated central gear of outer diameter is identical；If stop collar is made to play position-limiting action, outer diameter is less than the reference circle size of central gear.Central gear is positioned and limited with this configuration, stop collar does pure rolling, will not rub, from generation energy loss.
Description
Technical field:
The utility model belongs to mechanical equipment technical field, and in particular to a kind of no radial journal bearing gear transmission structure.
Background technique:
Branched power gear train assembly and planetary transmission system have compared to the gear train assembly of other forms
Apparent advantage, big for power density the advantages of these two types of driving forms, small in size, light weight, bearing capacity it is strong, achievable
The advantages that coaxial line input and output of power and high transmission efficiency, has been widely used in aviation, ship, mine, metallurgy, machinery
With the every field such as traffic.The power flow transmitting form of these two types of gear train assemblies is essentially identical, power be all by idle pulley or
Planetary gear passes to its centre wheel, one centre wheel is intermeshed with multiple gears simultaneously, so the arragement construction of centre wheel
It is of crucial importance, it is the key that influence entire transmission system stability.Because its is compact-sized, so center can be encountered often in design
The problem of radial journal bearing of gear is without enough space layouts, or again because of performance requirement, centre wheel is as used common radial journal bearing
The problems such as positioning and very few floating link can be generated when as support.These problems set these two types of gear train assemblies
Meter causes greatly to perplex, and seriously affects the design and application of this kind of gear train assembly.
In conclusion carrying out the research without radial journal bearing gear transmission structure, to solution branched power gear drive and row
Centre wheel can not arrange that there is very big help in the problem of radial journal bearing when star Design of Gear Drive System, have certain necessity,
Guidance is provided for the design and application of the type gear train assembly.
Utility model content:
The purpose of the utility model is to provide one kind can also be to branched power and row in the case where not using radial journal bearing
The centre wheel of star gear train assembly plays the structure of positioning and position-limiting action.
The technical solution adopted in the utility model are as follows: a kind of no radial journal bearing gear transmission structure, including it is wheel for inputting, lazy
Wheel, central gear, stop collar and bearing, power are inputted by the wheel for inputting, are passed to central gear by idle pulley and are exported；Institute
The quantity for stating idle pulley is 2；Idle pulley is meshed with central gear, and idle pulley is positioned by bearing；The central gear passes through limit
Ring radial positioning.
Further, the stop collar is arranged in idle pulley and central gear two sides, can be in tooth with thickness and width
In the case where so that central gear is not needed radial journal bearing support in wheel set engagement process, can equally radial direction be played to central gear
The effect of positioning and limit.
Further, the stop collar and central gear are using interference fit.
Further, if the stop collar is made to play positioning action, the associated central gear of outer diameter
Reference circle size is identical.
Further, if stop collar is made to play position-limiting action, outer diameter is less than the reference circle size of central gear.
It can also be to branched power without using radial journal bearing the utility model has the beneficial effects that providing one kind
And the centre wheel of planetary transmission system plays the structure of positioning and position-limiting action, it can be with this configuration to no radial journal bearing
Central gear carries out radial positioning and limit；Axial limiting can be carried out by the central gear to no radial journal bearing with this configuration；It is logical
It crosses the structure central gear is positioned and limited, stop collar does pure rolling, will not rub, from generation energy loss.
Structure is simple, and design is rationally, economic and practical, is easy to promote and use on a large scale.
Detailed description of the invention:
Fig. 1 is the schematic diagram of branched power gear train assembly in embodiment one；
Fig. 2 is the mounting structure schematic diagram of stop collar in embodiment one；
Fig. 3 is the schematic cross-sectional view of embodiment one.
Specific embodiment:
Embodiment one
- Fig. 3 referring to Fig.1,
Because branched power transmission system is identical as the application mode of planetary transmission system, therefore only to the structure in power
It applies and elaborates in branch's gear train assembly.A kind of no radial journal bearing gear transmission structure, including wheel for inputting 1, idle pulley
2, central gear 3, stop collar 4 and bearing 5.Fig. 1 is typical branched power gear train assembly, and power is inputted by wheel for inputting 1,
Central gear 3 is passed to by idle pulley 2 and is exported.The branched power gear train assembly is because two idle pulleys 2 are at being arranged vertically, center
The work that the gear structure with restraining position ring block 4 plays positioning and limit to centre wheel can be used without enough space layouts in gear 3
With.As shown in Fig. 2, should ensure that stop collar 4 and central gear 3 using being interference fitted, dry set by heating when installing stop collar
Mode installed.If stop collar 4 plays positioning action, outer diameter should be equal to associated central gear 3 and index
Circle size, if stop collar stop collar 4 plays position-limiting action, outer diameter should be slightly less than 3 reference circle size of central gear.Such as figure
Shown in 3, in the gear train assembly course of work, idle pulley 2 is meshed with center wheel gear 3, because idle pulley 2 and central gear 3 are equal
Band 4 structure of restraining position ring block, and idle pulley 2 is located by bearing 5, so central gear 3 can carry out diameter by stop collar 4
To positioning, guarantee its position in rotary course in the radial direction.Again because the stop collar 4 of idle pulley 2 can block the center gear teeth 3
Played the role of axial limiting so both having limited the axial position of central gear 3 in end face.And because of gear drive characteristic,
Pure rolling is done between stop collar 4 on central gear 3 and idle pulley 2, will not be rubbed, to generate energy loss.
The stop collar of the structure is arranged in the two sides of idle pulley, planetary gear and centre wheel gear part, have certain thickness and
Width, equally can be with centering in the case where central gear can be made to be not necessarily to the support of radial journal bearing during gear pair engages
Heart gear plays the role of radial positioning and limit.And the relative velocity between positioning ring and positioning ring is zero, therefore will not be sent out
Raw phase mutual friction influences the service performance of gear to heat, it is ensured that equipment is normal, stablizes, reliable operating.This no branch
Holding Bearing gear drive mechanism may be implemented that branched power gear drive and row can be made in the case where that can not arrange radial journal bearing
Centre wheel in star gear drive equally has the function of positioning and limit.
Claims (5)
1. a kind of no radial journal bearing gear transmission structure, it is characterised in that: including wheel for inputting (1), idle pulley (2), central gear
(3), stop collar (4) and bearing (5), power are inputted by the wheel for inputting (1), pass to central gear (3) simultaneously by idle pulley (2)
Output；The quantity of the idle pulley (2) is 2；Idle pulley (2) is meshed with central gear (3), and idle pulley (2) is fixed by bearing (5)
Position；The central gear (3) passes through stop collar (4) radial positioning.
2. a kind of no radial journal bearing gear transmission structure according to claim 1, it is characterised in that: the stop collar (4)
It is arranged in idle pulley (2) and central gear (3) two sides, with thickness and width, center can be made in gear pair engagement process
In the case that gear (3) does not need radial journal bearing support, equally can central gear (3) be played with the work of radial positioning and limit
With.
3. a kind of no radial journal bearing gear transmission structure according to claim 1 or 2, it is characterised in that: the stop collar
(4) with central gear (3) using interference fit.
4. a kind of no radial journal bearing gear transmission structure according to claim 1 or 2, it is characterised in that: if making the limit
Position ring (4) plays positioning action, then the reference circle size of the associated central gear of its outer diameter (3) is identical.
5. a kind of no radial journal bearing gear transmission structure according to claim 1 or 2, it is characterised in that: if making stop collar
(4) position-limiting action is played, then its outer diameter is less than the reference circle size of central gear (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920053714.7U CN209324940U (en) | 2019-01-14 | 2019-01-14 | A kind of no radial journal bearing gear transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920053714.7U CN209324940U (en) | 2019-01-14 | 2019-01-14 | A kind of no radial journal bearing gear transmission structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209324940U true CN209324940U (en) | 2019-08-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920053714.7U Active CN209324940U (en) | 2019-01-14 | 2019-01-14 | A kind of no radial journal bearing gear transmission structure |
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| CN (1) | CN209324940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488729A (en) * | 2019-01-14 | 2019-03-19 | 中国船舶重工集团公司第七0三研究所 | A kind of no radial journal bearing gear transmission structure |
-
2019
- 2019-01-14 CN CN201920053714.7U patent/CN209324940U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488729A (en) * | 2019-01-14 | 2019-03-19 | 中国船舶重工集团公司第七0三研究所 | A kind of no radial journal bearing gear transmission structure |
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