CN203627662U - Speed reducer for concrete stirring engine - Google Patents
Speed reducer for concrete stirring engine Download PDFInfo
- Publication number
- CN203627662U CN203627662U CN201320755896.5U CN201320755896U CN203627662U CN 203627662 U CN203627662 U CN 203627662U CN 201320755896 U CN201320755896 U CN 201320755896U CN 203627662 U CN203627662 U CN 203627662U
- Authority
- CN
- China
- Prior art keywords
- planet carrier
- bearing
- speed reducer
- carrier component
- upper shell
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Retarders (AREA)
- General Details Of Gearings (AREA)
Abstract
The utility model relates to a speed reducer for a concrete stirring engine. The speed reducer comprises an upper shell, a lower shell, a planet carrier assembly, an inner gear and a gear shaft. Teeth are arranged at one end of the gear shaft in the peripheral direction, stretch into the planet carrier assembly and are meshed with all planet wheels in the planet carrier assembly. All the planet wheels of the planet carrier assembly are meshed with the inner gear. The planet carrier assembly is arranged between the upper shell and the lower shell. Transmission of the planet carrier assembly is achieved through a single-end floating-type supporting structure. According to the speed reducer for the concrete stirring engine, because transmission of the planet carrier assembly is achieved through the single-end floating-type supporting structure and bearings are not used for supporting the two ends, requirements for coaxiality of bearing holes do not need to be considered, and machining efficiency is improved; loads between all the planet wheels in the planet carrier assembly can be balanced by the single-end floating-type structure, the backlash in circular tooth of the planet wheels and the backlash in circular tooth of the inner gear can be automatically adjusted according to radial force borne by the planet wheels, operation noise is reduced, and transmission smoothness and stability are improved.
Description
Technical field
The utility model relates to engineering machinery field, relates in particular to a kind of main concrete mixer speed reducer.
Background technique
Main concrete mixer is that cement, stone, sand etc. are stirred into concrete engineering mechanical device by one, and its speed reducer using is mainly made up of housing, planet carrier component, planet carrier spring bearing and spiral shell umbrella assembly etc.As shown in Figure 1, be existing a kind of speed reducer internal structure decomposing schematic representation.This speed reducer comprises three part housing, be respectively upper shell a8, middle casing a6 and lower shell body a1, gear shaft a7 is installed in upper shell a8, gear shaft a7 is supported by upper shell a8 and middle casing a6, two ends on planet carrier component a3 is axial are supported by selfaligning roller bearing a2 and deep groove ball bearing a4 respectively, internal gear a5 is arranged on one end of middle casing a6, engages with the planet wheel on planet carrier component a3.
In the speed reducer structure shown in Fig. 1, planet carrier adopts the form of two ends fixed support, this requirement on machining accuracy to reducer shell is higher, if housing processing is not in place, easily cause the backlash of planet wheel and internal gear inhomogeneous, and this can cause each planet wheel transmitted load inhomogeneous, the planet wheel that backlash is less is worn and torn too early, reduce stationarity and the reliability of transmission.In addition, support because planet carrier two ends adopt bearing, therefore the coaxality of two bearing holes is had relatively high expectations, this reduces work efficiency.
Meanwhile, the inner space that need to be larger of speed reducer, the housing therefore taking is also more, causes speed reducer split surface more, and this has also increased the probability that gear oil is revealed.
Model utility content
The purpose of this utility model is to propose a kind of main concrete mixer speed reducer, allows to adopt lower machining accuracy, and guarantees that planet wheel transmitted load is even as far as possible.
For achieving the above object, the utility model provides a kind of main concrete mixer speed reducer, comprise upper shell, lower shell body, planet carrier component, internal gear and gear shaft, one end of described gear shaft is along being circumferentially with profile of tooth, and extend in described planet carrier component and engage with the each planet wheel in described planet carrier component, each planet wheel of described planet carrier component engages with described internal gear, wherein, described planet carrier component is arranged between described upper shell and lower shell body, and described planet carrier component adopts single end floating formula supporting structure to realize transmission.
Further, described single end floating formula supporting structure comprises and is arranged on the clutch shaft bearing of described planet carrier component near described lower shell body one end, and the inner ring of described clutch shaft bearing supports described planet carrier component, and the outer ring of described clutch shaft bearing is fixed in described lower shell body.
Further, described clutch shaft bearing is selfaligning roller bearing.
Further, also comprise the supporting structure of described gear shaft, specifically comprise upper shell, the second bearing, the 3rd bearing and flange plate, the other end of described gear shaft is arranged on described upper shell by described the second bearing, the inner ring of described the second bearing supports described gear shaft, the outer ring of described the second bearing is fixed on described upper shell, and described flange plate is embedded in the inside of described upper shell, by described the 3rd bearing, the middle part of described gear shaft is supported.
Further, described the second bearing and the 3rd bearing are thrust roller bearing.
Further, described internal gear is fixed by bolt and described upper shell and lower shell body respectively.
Based on technique scheme, the utility model has adopted the planet carrier component of single end floating formula supporting structure to realize transmission, because this structure does not adopt bearing, two ends are supported, without the coaxality requirement of considering bearing hole, therefore improved work efficiency, the simultaneously load between each planet wheel of this single end floating structure in can balanced planet carrier component, can be according to adjustment planet wheel voluntarily of the suffered radial force of planet wheel and the backlash of internal gear, reduce running noise, improve stationarity and the reliability of transmission; In another embodiment, be embedded in the supporting structure of the gear shaft of the flange plate of upper shell by setting, can form excellent support to gear shaft, simultaneously due to the middle casing having saved for spring bearing and gear shaft, therefore reduced the kind of speed reducer size and component, improve efficiency of assembling, also reduced the quantity of reducer shell split surface simultaneously, reduced the probability of speed reducer leakage of oil.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is existing a kind of speed reducer internal structure decomposing schematic representation.
Fig. 2 is an embodiment's of the utility model main concrete mixer speed reducer cross-sectional view.
Fig. 3,4 is respectively the internal structure decomposing schematic representation at two visual angles of the utility model main concrete mixer speed reducer embodiment.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
As shown in Figure 2, be an embodiment's of speed reducer cross-sectional view for the utility model main concrete mixer.In conjunction with the internal structure decomposing schematic representation shown in Fig. 3,4, main concrete mixer speed reducer in the present embodiment: comprise upper shell 1, lower shell body 7, planet carrier component 5, internal gear 4 and gear shaft 2, one end of gear shaft 2 is along being circumferentially with profile of tooth 13, and extend in planet carrier component 5, engage with the each planet wheel 8 in planet carrier component 5, each planet wheel 8 of planet carrier component 5 engages with internal gear 4, planet carrier component 5 is arranged between upper shell 1 and lower shell body 7, and planet carrier component 5 adopts single end floating formula supporting structure to realize transmission.
So-called single end floating formula supporting structure refers to that planet carrier component one end on axis has supporting portion, can be by housing and bearings, and the other end of planet carrier component on axis do not arrange supporting portion, this end can float diametrically under the effect of radial force.This structure can comprise and be arranged on the clutch shaft bearing 6 of planet carrier component 5 near one end of lower shell body 7, and 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 shell body 7.Clutch shaft bearing 6 can be selected selfaligning roller bearing.4 of internal gears can be respectively fixed by bolt and upper shell 1 and lower shell body 7.
This structure does not adopt bearing to support two ends, therefore without the coaxality requirement of considering bearing hole, therefore improved work efficiency, the simultaneously load between each planet wheel of this single end floating structure in can balanced planet carrier component, can be according to adjustment planet wheel voluntarily of the suffered radial force of planet wheel and the backlash of internal gear, reduce running noise, improve stationarity and the reliability of transmission
In further preferred embodiment, the supporting structure that can also comprise gear shaft 2 in speed reducer for main concrete mixer, this supporting structure specifically comprises upper shell 1, the second bearing 12, the 3rd bearing 9 and flange plate 3, the middle part of gear shaft 2 is provided with bevel gear 10, engage with the bevel gear 11 of entrance point, one end of gear shaft 2 extend in planet carrier component 5, engage with planet wheel, the other end is arranged on upper shell 12 by the second bearing 12, the wherein inner ring support teeth wheel shaft 2 of the second bearing 12, the outer ring of the second bearing 12 is fixed on upper shell 1, flange plate 3 is embedded in the inside of upper shell 1, and flange plate 3 supports the middle part of gear shaft 2 by the 3rd bearing 9.Second bearing here and the 3rd bearing all can be selected thrust roller bearing.Be embedded in the supporting structure of the gear shaft of the flange plate of upper shell by setting, can form excellent support to gear shaft, simultaneously due to the middle casing having saved for spring bearing and gear shaft, therefore reduced the kind of speed reducer size and component, improve efficiency of assembling, also reduced the quantity of reducer shell split surface, reduced the probability of speed reducer leakage of oil simultaneously.
Certainly, in the feasible embodiment of another kind, also can adopt non-embedded flange plate or middle casing to support gear shaft, still can reach the effect that improves work efficiency and transmission stability.
Several main concrete mixers based on above stated specification are with in the embodiment of speed reducer, power can be inputted by the bevel gear of input end 11, 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 to rotate, and because the position of multiple pin shaft holes in planet carrier component 7 exists certain machining error, cause planet wheel 8 unbalanced with the backlash of internal gear 4, while causing speed reducer motion, have all the time partial row star-wheel 8 little with the backlash of internal gear 4, partial row star-wheel 8 is large with the backlash of internal gear 4; And adopt the planetary assemblies of monolateral floating type support structure, when partial row star-wheel 8 and the backlash hour of internal gear 4, the radial force that this planet wheel 8 is subject to is larger, because selfaligning roller bearing support is selected in planet carrier component 8 one end, cause planet carrier component 7 to rotate around the large one end of the middle mind-set backlash of selfaligning roller bearing, thereby realize load equalization, improved gear capacity.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characteristics is equal to replacement embodiment of the present utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technological scheme scope of the utility model request protection.
Claims (6)
1. a main concrete mixer speed reducer, comprise upper shell, lower shell body, planet carrier component, internal gear and gear shaft, one end of described gear shaft is along being circumferentially with profile of tooth, and extend in described planet carrier component and engage with the each planet wheel in described planet carrier component, each planet wheel of described planet carrier component engages with described internal gear, it is characterized in that, described planet carrier component is arranged between described upper shell and lower shell body, and described planet carrier component adopts single end floating formula supporting structure to realize transmission.
2. main concrete mixer speed reducer according to claim 1, it is characterized in that, described single end floating formula supporting structure comprises and is arranged on the clutch shaft bearing of described planet carrier component near described lower shell body 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 in described lower shell body.
3. main concrete mixer speed reducer according to claim 2, is characterized in that, described clutch shaft bearing is selfaligning roller bearing.
4. main concrete mixer speed reducer according to claim 1, it is characterized in that, also comprise the supporting structure of described gear shaft, specifically comprise upper shell, the second bearing, the 3rd bearing and flange plate, the other end of described gear shaft is arranged on described upper shell by described the second bearing, the inner ring of described the second bearing supports described gear shaft, the outer ring of described the second bearing is fixed on described upper shell, described flange plate is embedded in the inside of described upper shell, by described the 3rd bearing, the middle part of described gear shaft is supported.
5. main concrete mixer speed reducer according to claim 4, is characterized in that, described the second bearing and the 3rd bearing are thrust roller bearing.
6. main concrete mixer speed reducer according to claim 1, is characterized in that, described internal gear is fixed by bolt and described upper shell and lower shell body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755896.5U CN203627662U (en) | 2013-11-26 | 2013-11-26 | Speed reducer for concrete stirring engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755896.5U CN203627662U (en) | 2013-11-26 | 2013-11-26 | Speed reducer for concrete stirring engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627662U true CN203627662U (en) | 2014-06-04 |
Family
ID=50814145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320755896.5U Expired - Fee Related CN203627662U (en) | 2013-11-26 | 2013-11-26 | Speed reducer for concrete stirring engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591222A (en) * | 2013-11-26 | 2014-02-19 | 徐州徐工施维英机械有限公司 | Speed reducer for concrete mixing main machine |
-
2013
- 2013-11-26 CN CN201320755896.5U patent/CN203627662U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591222A (en) * | 2013-11-26 | 2014-02-19 | 徐州徐工施维英机械有限公司 | Speed reducer for concrete mixing main machine |
| CN103591222B (en) * | 2013-11-26 | 2017-02-15 | 徐州徐工施维英机械有限公司 | Speed reducer for concrete mixing main machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202082374U (en) | Planetary carrier bearing lubrication structure of extra large multi-diversion planetary gearbox | |
| TWI572788B (en) | Speed-reduction transmission bearing | |
| CN103770936A (en) | Helical bevel gear planetary gear train for main reducing gear of helicopter | |
| KR20120004295U (en) | Epicyclic reduction gear | |
| CN203698660U (en) | Spiral bevel gear planetary gear train for helicopter main reducing gear | |
| CN103968009A (en) | Small tooth number difference transmission mechanism and reducer comprising same | |
| CN203571001U (en) | Planetary gear installation structure, planetary gear bank and thrust washer | |
| CN205605741U (en) | Decide planet posture heavy load planetary gear train's for speed reducer structure | |
| CN203627662U (en) | Speed reducer for concrete stirring engine | |
| CN102562785A (en) | Turntable bearing with built-in internal tooth driving device | |
| CN202418261U (en) | Accessory transmission device | |
| CN104061316B (en) | The slow-speed shaft supporting construction of wind turbine gearbox | |
| CN202660188U (en) | Slewing bearing worm and gear speed reduction driving device | |
| CN203374738U (en) | Reduction drive bearing | |
| CN103591222A (en) | Speed reducer for concrete mixing main machine | |
| CN201326727Y (en) | Planetary-gear reduction gearbox with low noise | |
| CN209398799U (en) | A kind of large speed ratio high-speed planets system reducer structure | |
| CN203374638U (en) | Integrated noiseless bearing | |
| CN207921163U (en) | Three shaft space parallel connection clutch assemblies | |
| CN203431100U (en) | Rectangular axis speed reducer capable of bearing large axial force and large angular deviation | |
| CN201836303U (en) | Gear case used with medium and high-speed centrifugal fan | |
| CN205715581U (en) | Planetary transmission for wind power equipment | |
| CN206478175U (en) | A kind of super abrasive electromechanical integration planet-gear speed reducer | |
| CN204664308U (en) | Spiral bevel gear speed reducer | |
| CN103573927A (en) | Transmission device for vertical mill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20161126 |