CN103591222B - Speed reducer for concrete mixing main machine - Google Patents
Speed reducer for concrete mixing main machine Download PDFInfo
- Publication number
- CN103591222B CN103591222B CN201310606151.7A CN201310606151A CN103591222B CN 103591222 B CN103591222 B CN 103591222B CN 201310606151 A CN201310606151 A CN 201310606151A CN 103591222 B CN103591222 B CN 103591222B
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- CN
- China
- Prior art keywords
- bearing
- planet carrier
- carrier component
- gear
- speed reducer
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- 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
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- 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
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
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- 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
- F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
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- 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
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- 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
- F16H2057/02086—Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing
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- 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
- F16H2057/02095—Measures for reducing number of parts or components
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to a speed reducer for a concrete mixing main machine. The speed reducer comprises an upper casing, a lower casing, a planet carrier assembly, an inner gear and a gear shaft, wherein teeth are arranged at one end of the gear shaft in the peripheral direction, the gear shaft extends into the planet carrier assembly and meshed with all planet gears in the planet carrier assembly, the planet gears of the planet carrier assembly are meshed with the inner gear, the planet carrier assembly is arranged between the upper casing and the lower casing, and the planet carrier assembly is of a single-end floating type supporting structure to achieve transmission. Due to the facts that the planet carrier assembly is of the single-end floating type supporting structure to achieve transmission and the two ends are not supported by a bearing, the coaxiality requirements for bearing holes needn't to be taken into consideration. Thus, the processing efficiency is improved. Meanwhile, the single-end floating type supporting structure can balance load between all planet gears in the planet carrier assembly, the gear side gap between the planet gears and the inner gear can be adjusted by self according to radial stress on the planet gears, the rotation noise is reduced, and the stability and the reliability of transmission are improved.
Description
Technical field
The present invention relates to engineering machinery field, more particularly, to a kind of speed reducer for concrete mixing main machine.
Background technology
Main concrete mixer is a kind of engineering mechanical device that cement, stone, sand etc. stir into concrete, its institute
The reductor using mainly is made up of housing, planet carrier component, planet carrier spring bearing and spiral shell umbrella assembly etc..As shown in figure 1,
For a kind of existing reductor internal structure decomposing schematic representation.This reductor includes three part housing, respectively upper shell a8, centre
Sprocket drive spindle a7 is installed in housing a6 and lower house a1, upper shell a8, gear shaft a7 is supported by upper shell a8 and middle casing a6,
Two ends in planet carrier component a3 axial direction are supported by self-aligning roller bearing a2 and deep groove ball bearing a4 respectively, internal gear a5
It is arranged on one end of middle casing a6, engage with the planetary gear on planet carrier component a3.
In speed reducer structure shown in Fig. 1, in the form of the fixing support in two ends, this is to reducer shell for planet carrier
Requirement on machining accuracy is higher, if housing processing is not in place, it is uneven with the backlash of internal gear to easily cause planetary gear,
And each planetary gear transmission load can be led to uneven for this so that backlash less planetary gear premature abrasion, reduce transmission
Stationarity and reliability.Further, since planet carrier two ends are supported using bearing, the therefore axiality to two dead eyes
Require higher, this makes working (machining) efficiency reduce.
Meanwhile, need larger space inside reductor, the housing of therefore occupancy is also more, causes reductor split surface relatively
Many, which increases the probability of gear oil leakage.
Content of the invention
The purpose of the present invention is to propose to a kind of speed reducer for concrete mixing main machine is it is allowed to adopt relatively low machining accuracy,
And guarantee that planetary gear transmission load is as uniform as possible.
For achieving the above object, the invention provides a kind of speed reducer for concrete mixing main machine, including upper shell, lower casing
Body, planet carrier component, internal gear and gear shaft, one end of described gear shaft is circumferentially arranged with profile of tooth, and extend into described planet
Engage with each planetary gear in described planet carrier component in frame assembly, each planetary gear of described planet carrier component and described internal gear
Engagement, wherein, described planet carrier component is arranged between described upper shell and lower house, and described planet carrier component is using single-ended
Floating type support structure realizes transmission.
Further, described single end floating formula supporting construction includes being arranged on described planet carrier component near described lower house
The clutch shaft bearing of one end, the inner ring of described clutch shaft bearing supports described planet carrier component, and the outer ring of described clutch shaft bearing is fixed on
In described lower casing body.
Further, described clutch shaft bearing is self-aligning roller bearing.
Further, also include the supporting construction of described gear shaft, specifically include upper shell, second bearing, 3rd bearing
And ring flange, the other end of described gear shaft is arranged on described upper shell by described second bearing, described second bearing
Inner ring supports described gear shaft, and the outer ring of described second bearing is fixed on described upper shell, and described ring flange is embedded in described
The inside of upper shell, is supported to the middle part of described gear shaft by described 3rd bearing.
Further, described second bearing and 3rd bearing are thrust roller bearing.
Further, described internal gear is fixed with described upper shell and lower house by bolt respectively.
Based on technique scheme, present invention employs the planet carrier component of single end floating formula supporting construction to realize passing
Dynamic, because this structure is provided without bearing, two ends are supported, need not consider that the axiality of dead eye requires, therefore improve
Working (machining) efficiency, simultaneously this single end floating structure can equalize the load between each planetary gear in planet carrier component, Ke Yigen
According to the adjustment planetary gear voluntarily of the radial force suffered by planetary gear and the backlash of internal gear, reduce running noise, improve transmission
Stationarity and reliability；In another embodiment, it is embedded in the support of the gear shaft of the ring flange of upper shell by setting
Structure, can form excellent support to gear shaft, simultaneously because eliminating the middle casing for spring bearing and gear shaft, because
This decreases reductor size and the species of parts, improves efficiency of assembling, decreases reducer shell split surface simultaneously
Quantity, reduce reductor oil leak probability.
Brief description
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description is used for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of existing reductor internal structure decomposing schematic representation.
Fig. 2 is the cross-sectional view of an embodiment of speed reducer for concrete mixing main machine of the present invention.
Fig. 3, the internal structure at 4 two visual angles being respectively speed reducer for concrete mixing main machine embodiment of the present invention are decomposed
Schematic diagram.
Specific embodiment
Below by drawings and Examples, technical scheme is described in further detail.
As shown in Fig. 2 the cross-sectional view of the embodiment for speed reducer for concrete mixing main machine of the present invention.Knot
Close Fig. 3, the internal structure decomposing schematic representation shown in 4, the speed reducer for concrete mixing main machine in the present embodiment：Including upper shell
1st, lower house 7, planet carrier component 5, internal gear 4 and gear shaft 2, one end of gear shaft 2 is circumferentially arranged with profile of tooth 13, and extend into
In planet carrier component 5, engage with each planetary gear 8 in planet carrier component 5, each planetary gear 8 and the internal gear 4 of planet carrier component 5
Engagement, planet carrier component 5 is arranged between upper shell 1 and lower house 7, and planet carrier component 5 adopts single end floating formula to support knot
Structure realizes transmission.
So-called single end floating formula supporting construction refers to that planet carrier component one end on axis has supporting part, can pass through
Housing and bearings, and the other end on axis for the planet carrier component is not provided with supporting part, this end can be in the work of radial force
With under diametrically float.This structure can include being arranged on the clutch shaft bearing 6 of planet carrier component 5 one end near lower house 7,
The inner ring of clutch shaft bearing 6 supports planet carrier component 5, and the outer ring of clutch shaft bearing 6 is fixed in lower house 7.Clutch shaft bearing 6 is optional
Use self-aligning roller bearing.Internal gear 4 then can be fixed with upper shell 1 and lower house 7 by bolt respectively.
This structure is provided without bearing and two ends is supported, and therefore need not consider that the axiality of dead eye requires, therefore
Improve working (machining) efficiency, this single end floating structure can equalize the load between each planetary gear in planet carrier component simultaneously,
Can radial force according to suffered by planetary gear adjustment planetary gear voluntarily and the backlash of internal gear, reduce running noise, carry
The stationarity of high transmission and reliability.
In a further preferred embodiment, propping up of gear shaft 2 can also be included in speed reducer for concrete mixing main machine
Support structure, this supporting construction specifically includes upper shell 1, second bearing 12,3rd bearing 9 and ring flange 3, the middle part of gear shaft 2
It is provided with bevel gear 10, engages with the bevel gear 11 of entrance point, one end of gear shaft 2 extend in planet carrier component 5, with planet
Wheel engagement, and the other end is then arranged on upper shell 12 by second bearing 12, wherein the inner ring of second bearing 12 supports gear
Axle 2, the outer ring of second bearing 12 is fixed on upper shell 1, and ring flange 3 is embedded in the inside of upper shell 1, and ring flange 3 leads to
Cross 3rd bearing 9 middle part of gear shaft 2 is supported.Here second bearing and 3rd bearing all can be selected for thrust roller axle
Hold.It is embedded in the supporting construction of the gear shaft of the ring flange of upper shell by setting, excellent support can be formed to gear shaft, with
When due to eliminating the middle casing for spring bearing and gear shaft, therefore decrease reductor size and the kind of parts
Class, improves efficiency of assembling, decreases the quantity of reducer shell split surface simultaneously, reduces the probability of reductor oil leak.
Certainly, in another kind of feasible embodiment, it would however also be possible to employ it is right that non-embedded ring flange or middle casing come
Gear shaft is supported, and remains able to reach the effect improving working (machining) efficiency and transmission stability.
In embodiment based on several speed reducer for concrete mixing main machine of preceding description, power can pass through input
Bevel gear 11 inputs, and by the bevel gear 10 being engaged with, rotating speed is passed to gear shaft 2, gear shaft 2 rotates and drives planet
Wheel 8 rotation, and because the position of multiple pin shaft holes in planet carrier component 7 has certain mismachining tolerance, lead to planetary gear 8 with interior
The backlash of gear 4 is unbalanced, causes to have the backlash of part planetary gear 8 and internal gear 4 during reductor motion all the time
Little, part planetary gear 8 is big with the backlash of internal gear 4；And adopt the planetary assemblies of monolateral floating type support structure, then work as portion
Branch's star-wheel 8 and the backlash hour of internal gear 4, then the radial force that this planetary gear 8 is subject to is larger, due to planet carrier component 8
One end selects self-aligning roller bearing to support, then lead to planet carrier component 7 big to backlash around the center of self-aligning roller bearing
One end rotate, it is achieved thereby that load equalization, improve gear capacity.
Finally it should be noted that:Above example is only not intended to limit in order to technical scheme to be described；To the greatest extent
Pipe has been described in detail to the present invention with reference to preferred embodiment, and those of ordinary skill in the art should be understood：Still
The specific embodiment of the present invention can be modified or equivalent is carried out to some technical characteristics；Without deviating from this
The spirit of bright technical scheme, it all should be covered in the middle of the technical scheme scope that the present invention is claimed.
Claims (5)
1. a kind of speed reducer for concrete mixing main machine, including upper shell, lower house, planet carrier component, internal gear and gear shaft,
One end of described gear shaft circumferentially arranged with profile of tooth, and extend in described planet carrier component with described planet carrier component in each
Planetary gear engages, and each planetary gear of described planet carrier component engages with described internal gear it is characterised in that described planet carrier component
It is arranged between described upper shell and lower house, and described planet carrier component adopts single end floating formula supporting construction to realize transmission；
Also include the supporting construction of described gear shaft, specifically include upper shell, second bearing, 3rd bearing and ring flange, described
The other end of gear shaft is arranged on described upper shell by described second bearing, and the inner ring of described second bearing supports described tooth
Wheel shaft, the outer ring of described second bearing is fixed on described upper shell, and described ring flange is embedded in the inside of described upper shell, leads to
Cross described 3rd bearing the middle part of described gear shaft is supported, to reduce the quantity of reducer shell split surface, reduction subtracts
The probability of fast machine oil leak.
2. speed reducer for concrete mixing main machine according to claim 1 is it is characterised in that described single end floating formula supports
Structure includes being arranged on the clutch shaft bearing near described lower house one end for the described planet carrier component, and the inner ring of described clutch shaft bearing props up
Support described planet carrier component, the outer ring of described clutch shaft bearing is fixed in described lower casing body.
3. speed reducer for concrete mixing main machine according to claim 2 is it is characterised in that described clutch shaft bearing is regulation of mental activities
Roller bearing.
4. speed reducer for concrete mixing main machine according to claim 1 is it is characterised in that described second bearing and the 3rd
Bearing is thrust roller bearing.
5. speed reducer for concrete mixing main machine according to claim 1 is it is characterised in that described internal gear passes through respectively
Bolt is fixed with described upper shell and lower house.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310606151.7A CN103591222B (en) | 2013-11-26 | 2013-11-26 | Speed reducer for concrete mixing main machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310606151.7A CN103591222B (en) | 2013-11-26 | 2013-11-26 | Speed reducer for concrete mixing main machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103591222A CN103591222A (en) | 2014-02-19 |
| CN103591222B true CN103591222B (en) | 2017-02-15 |
Family
ID=50081480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310606151.7A Active CN103591222B (en) | 2013-11-26 | 2013-11-26 | Speed reducer for concrete mixing main machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103591222B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008549B (en) * | 2021-04-12 | 2023-07-21 | 宁波大学 | Variable-size RV reducer planetary gear stress measurement device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3943789A (en) * | 1973-10-04 | 1976-03-16 | Zahnradfabrik Friedrichshafen Ag | Drive mechanism for cement mixer and the like |
| CN201027914Y (en) * | 2007-04-12 | 2008-02-27 | 都江堰市工程机械厂 | Angle transmission speed reducer |
| CN201300486Y (en) * | 2008-08-19 | 2009-09-02 | 南昌江铃集团协和传动技术有限公司 | Mixer power transmission gear box |
| CN201841598U (en) * | 2010-05-19 | 2011-05-25 | 南昌江铃集团协和传动技术有限公司 | Power transmission gearbox of stirrer |
| CN203627662U (en) * | 2013-11-26 | 2014-06-04 | 徐州徐工施维英机械有限公司 | Speed reducer for concrete stirring engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004038502A1 (en) * | 2004-08-07 | 2006-02-23 | Zf Friedrichshafen Ag | Transmission, in particular for driving a drum of a truck mixer |
-
2013
- 2013-11-26 CN CN201310606151.7A patent/CN103591222B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3943789A (en) * | 1973-10-04 | 1976-03-16 | Zahnradfabrik Friedrichshafen Ag | Drive mechanism for cement mixer and the like |
| CN201027914Y (en) * | 2007-04-12 | 2008-02-27 | 都江堰市工程机械厂 | Angle transmission speed reducer |
| CN201300486Y (en) * | 2008-08-19 | 2009-09-02 | 南昌江铃集团协和传动技术有限公司 | Mixer power transmission gear box |
| CN201841598U (en) * | 2010-05-19 | 2011-05-25 | 南昌江铃集团协和传动技术有限公司 | Power transmission gearbox of stirrer |
| CN203627662U (en) * | 2013-11-26 | 2014-06-04 | 徐州徐工施维英机械有限公司 | Speed reducer for concrete stirring engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103591222A (en) | 2014-02-19 |
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