CN203926630U - Gearbox - Google Patents
Gearbox Download PDFInfo
- Publication number
- CN203926630U CN203926630U CN201420284428.9U CN201420284428U CN203926630U CN 203926630 U CN203926630 U CN 203926630U CN 201420284428 U CN201420284428 U CN 201420284428U CN 203926630 U CN203926630 U CN 203926630U
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- China
- Prior art keywords
- helical gear
- axis
- pair
- gearbox
- input shaft
- 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 - Lifetime
Links
- 230000007704 transition Effects 0.000 claims abstract description 31
- 238000012423 maintenance Methods 0.000 claims abstract description 5
- 210000004907 gland Anatomy 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- 239000004519 grease Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 206010006514 bruxism Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Gear Transmission (AREA)
- General Details Of Gearings (AREA)
Abstract
The utility model provides a kind of gearbox, it has input shaft, jack shaft, output major axis, transition axis and output minor axis, described input shaft and jack shaft engagement driving, described output major axis and described jack shaft be coaxial to be connected and synchronizes rotation, described transition axis be arranged on the coaxial axial direction of described input shaft on, and with described jack shaft engagement driving, described output minor axis is closely attached on described output long axis, and outside the casing of gearbox, stretch out abreast with output major axis, described output minor axis and described transition axis engagement driving, and rotating in same direction is synchronizeed in maintenance with described output major axis.Because input shaft and transition axis coaxially arrange, described jack shaft and described output major axis coaxially arrange, and can reduce the radial dimension of gearbox, and are convenient to control and improve installation precision, make gearbox that higher velocity ratio can be provided, and produce the noise of less vibrations.
Description
Technical field
The utility model relates to a kind of gearbox, particularly a kind of gearbox that power input is provided with double screw extruder to plastic alloy processing.
Background technique
At present in the blend to plastic alloy, copolymerization application, parallel to prepare in the same way selecting of platform be extremely widely; According to the basic conception of the resistance of above-mentioned not homology melt on functional rotor assembly, heat build-up impact, parallelly prepare in the same way platform, reciprocatingly prepare platform, continuous mixing is prepared platform different separately intrinsic excellent, inferior positions.
Present inventor is by integrating, optimize three kinds of different platforms, adopt again modern advanced Modular Structure Design theory, form new close, kneading blending and modifying continuously and prepare platform, and by melt flow field being done to digitizing static and dynamic analysis, optimize conveying, mixing, mixing, the heat build-up hierarchy of control of all Mixing components, make it have that user's application flexibility span is large, high-quality, high production, low energy consumption, personnel's recruitment are few, the advantage of maintenance easy to operate.
New close, kneading blending and modifying is continuously prepared in the design of platform, needs to use more high-power, more smaller tremors and more low noise gearbox, to provide power to double screw extruder, meets new preparation requirement.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model is: a kind of gearbox is provided, makes it have larger power, less vibrations and lower noise.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of gearbox, it is characterized in that: it has input shaft, jack shaft, output major axis, transition axis and output minor axis, described input shaft and jack shaft engagement driving, described output major axis and described jack shaft be coaxial to be connected and synchronizes rotation, described transition axis be arranged on the coaxial axial direction of described input shaft on, and with described jack shaft engagement driving, described output minor axis is closely attached on described output long axis, and outside the casing of gearbox, stretch out abreast with output major axis, described output minor axis and described transition axis engagement driving, and rotating in same direction is synchronizeed in maintenance with described output major axis.
In described gearbox: described input shaft and jack shaft are by first pair of helical gear engagement driving, and described transition axis is by second pair of helical gear and described jack shaft engagement driving, and described output minor axis is by the 3rd pair of helical gear and described transition axis engagement driving.
In described gearbox: also comprise the 4th pair of helical gear, described output minor axis is simultaneously by the 3rd pair of helical gear and the 4th pair of helical gear and described transition axis engagement driving
In described gearbox: described first couple of helical gear setting party to, make axial force direction that described input shaft bears point to the overhanging end of described input shaft.
In described gearbox: described the 3rd couple of helical gear setting party to, the axial force direction that described output minor axis is born is pointed to the overhanging end of described output minor axis.
In described gearbox: described the 3rd couple of helical gear setting party to, the axial force direction that described output minor axis is born is pointed to the overhanging end of described output minor axis, and described the 4th couple of helical gear setting party to described the 3rd pair of helical gear opposite direction that arranges.
In described gearbox: described transition axis disconnects and being then connected with connecting sleeve between second pair of helical gear and the 4th pair of helical gear, transition axis also disconnects and being then connected with another connecting sleeve between the 4th pair of helical gear and the 3rd pair of helical gear, and then described output minor axis disconnects and to be connected with a connecting sleeve again between the 4th pair of helical gear and the 3rd pair of helical gear.
In described gearbox: by described input shaft, driving gear on input shaft, the bearing inner race of driving gear inner side, the bearing in driving gear outside, oil sealing and the gland in driving gear outside, and the bearing support being fixedly connected with gland is connected to an assembly structure, and on the casing of gearbox, offer the mounting hole that diameter is greater than driving gear diameter, described assembly structure packs into from mounting hole in the casing of gearbox, then with screw, bearing support is fixed on casing, between the internal diameter that the external diameter that described bearing support is associated with mounting hole and described bearing support and bearing outside diameter are associated, form eccentric structure.
In described gearbox: described bearing support has the grease channel being associated with the built-in oil duct of casing.
In described gearbox: at the overhanging end place of described output major axis and the overhanging end place of described output minor axis dish ring is all installed.
Compared with prior art, adopt the advantage the utlity model has of technique scheme to be:
1. because input shaft and transition axis coaxially arrange, described jack shaft and described output major axis coaxially arrange, and can reduce the radial dimension of gearbox, and are convenient to control and improve installation precision, make gearbox that higher velocity ratio can be provided, and produce the noise of less vibrations.
2. described in, input shaft is with output minor axis in the process of work, and constantly each seal element at extruding overhanging end place, forms oil seal closely.
3. because transition axis and output minor axis are split into several relatively short semiaxis, be not easy the transmission that circular runout occurs and beat, and then ensured the critical contact state that mutual grinding tooth face drives.
4. the utility model has also carried out special design to the end cap of input shaft, when installing or overhaul, needn't open whole casing, only need assembly structure to pack into from mounting hole, then with screw, gland is fixed on casing, both be convenient to I&M, can also have ensured the operating accuracy of gear mesh.
5, the output major axis that the utility model adopts, its technical advantage is: be easy to assembling; Adjust with output minor axis spline phase association; The axially control of the position after being connected with axle reducing gear axle, axial running clearance are eliminated, assembly technology is simplified the conclusive effect that plays.
6, the utility model adopts output minor axis and gap bridge tooth axle (i.e. second pair of helical gear 7), its technical advantage is: overcome this axle and tie up to the flank of tooth unbalance loading, contact stress control deterioration, the increase of single bearing load that in all loading ranges, easily form high class gear because bearings is crossed location (the caused working stability negative interference of load under all operating modes).
Brief description of the drawings
Fig. 1, Fig. 2 are the each gear shaft engagement of gearbox and lubrication system schematic perspective views thereof in preferred embodiment of the utility model;
Fig. 3 is gearbox decomposition texture schematic diagram in another preferred embodiment of the utility model;
Fig. 4, Fig. 4 A are vertical profile schematic diagram and the enlarged views thereof of gearbox in another preferred embodiment of the utility model;
Fig. 5 is the vertical profile schematic diagram of gearbox other direction in another preferred embodiment of the utility model.
Description of reference numerals: input shaft 1; Jack shaft 2; Output major axis 3; Transition axis 4; Output minor axis 5; First pair of helical gear 6; Second pair of helical gear 7; Casing 8; The 3rd pair of helical gear 9; The 4th pair of helical gear 10; Connecting sleeve 11,12,13; Driving gear 14; Bearing inner race 15; Bearing 16; Gland 17; Mounting hole 18; Dish ring 19; Bearing support 20; Oil hole 21.
Embodiment
Refer to Fig. 1, Fig. 2 and Fig. 3-Fig. 5, it is the gearbox that two preferred embodiments of the utility model provide, it all has input shaft 1, jack shaft 2, output major axis 3, transition axis 4 and output minor axis 5, wherein: described input shaft 1 passes through first pair of helical gear 6 engagement driving with jack shaft 2, described output major axis 3 and described jack shaft 2 be coaxial to be connected and synchronizes rotation, described transition axis 4 be arranged on the coaxial axial direction of described input shaft 1 on, it is by second pair of helical gear 7 and described jack shaft 2 engagement driving, described output minor axis 5 is closely attached on described output major axis 3 and arranges, and outside the casing 8 of gearbox, stretch out abreast with output major axis 3, described output minor axis 5 is by the 3rd pair of helical gear 9 and the 4th pair of helical gear 10 and described transition axis 4 engagement driving (as shown in Figure 3-Figure 5), and rotating in same direction is synchronizeed in maintenance with described output major axis 3.Wherein, the velocity ratio of described second pair of helical gear 7, the 3rd pair of helical gear 9 and the 4th pair of helical gear 10 is 1:1, so that described output minor axis 5 is consistent with the rotating speed of output major axis 3.
Because input shaft 1 and transition axis 4 coaxially arrange, described jack shaft 2 coaxially arranges with described output major axis 3, can reduce the radial dimension of gearbox, and is convenient to control and improves installation precision, make gearbox that higher velocity ratio can be provided, and produce the noise of less vibrations.
Can see from Fig. 1, Fig. 2, be equipped with lubricant oil fuel feeding and oil return system in gearbox, for the overhanging end place that makes input shaft 1, output major axis 3 and output minor axis 5 forms good sealing, the utility model also provides following design:
As shown in Figure 4, the setting party of described first pair of helical gear 6 to, make axial force direction (direction of arrow) that described input shaft 1 bears point to the overhanging end of described input shaft 1, thus, described input shaft 1 is in the process of work, constantly each seal element at extruding overhanging end place, forms oil seal closely.
As shown in Figure 5, the setting party of described the 3rd pair of helical gear 9 to, the axial force direction that also makes described output minor axis 5 bear is pointed to the overhanging end of described output minor axis 5, in like manner, makes the overhanging end place that exports minor axis 5 form good oil seal; And the setting party of described the 4th pair of helical gear 10 to the opposite direction that arranges of described the 3rd pair of helical gear 9, avoid the stack (as shown in Figure 3-Figure 5) of axial force.Certainly, the present embodiment is in order to transmit high moment of torsion, therefore be provided with the 3rd pair of helical gear 9 and the 4th pair of helical gear 10 simultaneously, stressed to disperse, and in the situation that its design torque is not high, described the 3rd pair of helical gear 9 also can be only set, described the 4th pair of helical gear 10 (as shown in Figure 1 and Figure 2) is no longer set.In addition, the setting party of described the 4th pair of helical gear 10 to the opposite direction that arranges of described the 3rd pair of helical gear 9, form a kind of " compound herringbone tooth drives from seeking zero point and resets " structure, can make each gear automatically operate in benchmark dead-center position, improved the precision of gearbox.
And, dish ring 19 is installed at the overhanging end place of described output major axis 3, can eliminate the axial clearance of this output major axis 3 by the application of dish ring 19, make it all present shaftless to gap state in any operating time section; Can also ensure by the application of dish ring 19 stability that the thrust-bearing on described output major axis 3 is worked under any load condition.Similarly, dish ring 19 is also installed at the overhanging end place of described output minor axis 5.
In addition, have influence on other gear mesh for fear of the circular runout of the gear mesh on each axle, the utility model has also adopted semiaxis design in many places, as:
As shown in Figure 5, transition axis 4 disconnects and being then connected with connecting sleeve 11 between second pair of helical gear 7 and the 4th pair of helical gear 10, transition axis 4 also disconnects and being then connected with another connecting sleeve 12 between the 4th pair of helical gear 10 and the 3rd pair of helical gear 9, the two ends of three semiaxis after described transition axis 4 disconnects use respectively bearing spacing, thus, because transition axis 4 is split into three relatively short semiaxis, be not easy the transmission that circular runout occurs and beat, therefore, second pair of helical gear 7, the 3rd pair of helical gear 9 and the 4th pair of helical gear 10 can both be worked under higher positional accuracy, to guarantee high moment of torsion, high rotating speed output, safe and stable operation, be conducive to facilitate the rigidity oil film of wheel between cog to be set up, and then ensure the critical contact state that mutual grinding tooth face drives.
Still shown in Fig. 5, then described output minor axis 5 disconnects and to be connected with a connecting sleeve 13 again between the 4th pair of helical gear 10 and the 3rd pair of helical gear 9, the two ends of two semiaxis after described output minor axis 5 disconnects use respectively bearing spacing, have equally effect of the transmission that is not easy that circular runout occurs and beat.
In addition, the utility model has also carried out special design to the end cap of input shaft 1: as shown in Figure 4 A, by described input shaft 1, driving gear 14 on input shaft 1, the bearing inner race 15 of driving gear 14 inner sides, the bearing 16 in driving gear 14 outsides, the oil sealing in driving gear 14 outsides and gland 17, and the bearing support 20 being fixedly connected with gland 17 is connected to an assembly structure, and on the casing 8 of gearbox, offer the mounting hole 18 that diameter is greater than driving gear 14 diameters, when installing or overhaul, needn't open whole casing 8, only need assembly structure to pack into from mounting hole 18, then with screw, bearing support 20 is fixed on casing 8.Wherein, between the internal diameter that the external diameter that described bearing support 20 is associated with mounting hole 18 and described bearing support 20 and bearing 16 external diameters are associated, form eccentric structure (eccentricity value is 0.015mm～0.035mm), after installation, by adjusting the eccentric distance of bearing support 20 and mounting hole 18, be the flank of tooth contact ratio of capable of regulating first to driving gear in helical gear 6 14 and driven gear, even after change oil sealing, also can readjust flank of tooth contact ratio and can not affect the operating accuracy of gear mesh.In addition, described bearing support 20 has the grease channel 21 being associated with the built-in oil duct of casing, thereby ensures that this bearing 16 uses the life-span under high rotating speed, high load condition.
More than illustrate the utility model just illustrative; and nonrestrictive, those of ordinary skill in the art understand, in the case of not departing from the spirit and scope that claim limits; can make many amendments, variation or equivalence, but within all falling into protection domain of the present utility model.
Claims (10)
1. a gearbox, it is characterized in that: it has input shaft, jack shaft, output major axis, transition axis and output minor axis, described input shaft and jack shaft engagement driving, described output major axis and described jack shaft be coaxial to be connected and synchronizes rotation, described transition axis be arranged on the coaxial axial direction of described input shaft on, and with described jack shaft engagement driving, described output minor axis is closely attached on described output long axis, and outside the casing of gearbox, stretch out abreast with output major axis, described output minor axis and described transition axis engagement driving, and rotating in same direction is synchronizeed in maintenance with described output major axis.
2. gearbox according to claim 1, it is characterized in that: described input shaft and jack shaft are by first pair of helical gear engagement driving, described transition axis is by second pair of helical gear and described jack shaft engagement driving, and described output minor axis is by the 3rd pair of helical gear and described transition axis engagement driving.
3. gearbox according to claim 2, is characterized in that: also comprise the 4th pair of helical gear, described output minor axis is simultaneously by the 3rd pair of helical gear and the 4th pair of helical gear and described transition axis engagement driving
4. gearbox according to claim 2, is characterized in that: described first couple of helical gear setting party to, make axial force direction that described input shaft bears point to the overhanging end of described input shaft.
5. gearbox according to claim 2, is characterized in that: described the 3rd couple of helical gear setting party to, the axial force direction that described output minor axis is born is pointed to the overhanging end of described output minor axis.
6. gearbox according to claim 3, it is characterized in that: described the 3rd couple of helical gear setting party to, the axial force direction that described output minor axis is born is pointed to the overhanging end of described output minor axis, and described the 4th couple of helical gear setting party to described the 3rd pair of helical gear opposite direction that arranges.
7. gearbox according to claim 6, it is characterized in that: described transition axis disconnects and being then connected with connecting sleeve between second pair of helical gear and the 4th pair of helical gear, transition axis also disconnects and being then connected with another connecting sleeve between the 4th pair of helical gear and the 3rd pair of helical gear, and then described output minor axis disconnects and to be connected with a connecting sleeve again between the 4th pair of helical gear and the 3rd pair of helical gear.
8. gearbox according to claim 3, it is characterized in that: by described input shaft, driving gear on input shaft, the bearing inner race of driving gear inner side, the bearing in driving gear outside, oil sealing and the gland in driving gear outside, and the bearing support being fixedly connected with gland is connected to an assembly structure, and on the casing of gearbox, offer the mounting hole that diameter is greater than driving gear diameter, described assembly structure packs into from mounting hole in the casing of gearbox, then with screw, bearing support is fixed on casing, between the internal diameter that the external diameter that described bearing support is associated with mounting hole and described bearing support and bearing outside diameter are associated, form eccentric structure.
9. gearbox according to claim 8, is characterized in that: described bearing support has the grease channel being associated with the built-in oil duct of casing.
10. gearbox according to claim 1, is characterized in that: at the overhanging end place of described output major axis and the overhanging end place of described output minor axis dish ring is all installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284428.9U CN203926630U (en) | 2014-05-29 | 2014-05-29 | Gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284428.9U CN203926630U (en) | 2014-05-29 | 2014-05-29 | Gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926630U true CN203926630U (en) | 2014-11-05 |
Family
ID=51822443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420284428.9U Expired - Lifetime CN203926630U (en) | 2014-05-29 | 2014-05-29 | Gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926630U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931382A (en) * | 2019-04-09 | 2019-06-25 | 南京杰恩特机电有限公司 | The gear reduction box drive mechanism of equidirectional parallel double-screw extruder |
-
2014
- 2014-05-29 CN CN201420284428.9U patent/CN203926630U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931382A (en) * | 2019-04-09 | 2019-06-25 | 南京杰恩特机电有限公司 | The gear reduction box drive mechanism of equidirectional parallel double-screw extruder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201231 Address after: No. 727, Sheng'an Avenue, Jiangning Binjiang Development Zone, Nanjing, Jiangsu, 210000 Patentee after: Nanjing Changxin Intelligent Equipment Co.,Ltd. Address before: No.88, Liujiagang, wengjiaying, Honghua street, Qinhuai District, Nanjing City, Jiangsu Province, 210012 Patentee before: NANJING CHANGXIN MACHINERY EQUIPMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |