CN101041225A - Multi-point transmitting method of huge revolving table - Google Patents
Multi-point transmitting method of huge revolving table Download PDFInfo
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- CN101041225A CN101041225A CN 200710039685 CN200710039685A CN101041225A CN 101041225 A CN101041225 A CN 101041225A CN 200710039685 CN200710039685 CN 200710039685 CN 200710039685 A CN200710039685 A CN 200710039685A CN 101041225 A CN101041225 A CN 101041225A
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- revolving table
- huge revolving
- workbench
- transmitting method
- point transmitting
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Abstract
The invention relates to a multi-point transmission method for large rotary table. The method is that multiple small gears with the same rotating speed are set round the big gear ring of large rotary table to commonly drive the big gear ring, which drives the table rotate. Compared with the prior technology, the invention can improve the driving stability and the radial force generated in gear transmission can be balanced.
Description
Technical field
The present invention relates to machine tool field, be specifically related to a kind of multi-point transmitting method of huge revolving table.
Background technology
Workbench is the critical component in the vertical lathe (vertical lathe), and it is related to bearing capacity, rotating accuracy and the stationarity of vertical lathe.The structure of typical vertical lathe workbench is: the table slide face is the annular plane, in order to the weight of carrying workbench and workpiece; Workbench itself is by the centering of the roller bearing on its axle, to guarantee the work table rotation precision; Present this workbench all adopts the single-point transmission, and promptly 1 main motor-1 subtracts the bull gear-driving work table rotation on (change) fast case-1 pinion-workbench.
Analyze theoretically, there is disadvantage in the single-point transmission:
1. the frictional damping that guide pass is produced of the weight of workbench and workpiece is that disperse, uniform, and the driving force of gear pair transmission then is that concentrate, single, when damping and driving force are all bigger, can cause the distortion and the rotating instability of workbench; For example: gross weight was more than 100 tons after the maximum workpiece of vertical lathe added upper table, and the driving gear wheel diameter under the workbench is more than 5 meters, and workbench is monolateral stressed when the single-point transmission, and its running can produce unstable situation unavoidably.
2. when gear pair drives work table rotation, remove and produce required meritorious torque F
tAlso produce harmful radial load F outward,
r, as Fig. 2, this radial load is pointed to the axle and the roller bearing thereof of workbench, except that having increased bearing load, having reduced the bearing life, also can cause workbench to depart from original centre of gyration; Under the single-point drive state, the big radial load that gears engaged produces is pointed to the bearing of workbench all the time, and bearing is produced the constant radial load of direction, thereby causes the skew of workbench central axis after stressed, and and then influences bearing life.
Above-mentioned disadvantage should be more outstanding on the ultra-large type vertical lathe.
Summary of the invention
Purpose of the present invention is exactly the multi-point transmitting method of huge revolving table that the radial load that produces in a kind of stability of improving driving, the balance gear transmission is provided in order to overcome the defective that above-mentioned prior art exists.
Purpose of the present invention can be achieved through the following technical solutions: a kind of multi-point transmitting method of huge revolving table, it is characterized in that, this method is that a plurality of pinions are set around the bull gear of huge revolving table, these pinion rotating speed unanimities drive bull gear jointly and drive the workbench rotation.
Angle between described a plurality of pinion is all inequality or part is identical or identical.
Described pinion is provided with 3～5.
Described pinion is provided with 3, and these 3 pinions angle between any two is 120 ° ± α.
Described α≤30 °.
Described huge revolving table is by main motor, gearbox, a plurality of pinion and bull gear coordinated drive.
Compared with prior art, the present invention changes traditional single-point transmission into the multiple spot transmission, the driving force that gear pair is transmitted disperses, evenly, when damping and driving force are all bigger, also can not cause the distortion and the rotating instability of workbench, improve the radial load that produces in the stable and balance gear transmission that drives, reduce bearing load, increase bearing life.
Description of drawings
Fig. 1 is traditional single-point driven type vertical lathe structural representation;
Fig. 2 is a single-point transmission vertical lathe workbench schematic diagram;
Fig. 3 is a workbench schematic diagram of the present invention.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
The structure of typical vertical lathe workbench is: the table slide face is the annular plane, in order to the weight of carrying workbench and workpiece; Workbench itself is by the centering of the roller bearing on its axle, to guarantee the work table rotation precision; Common workbench all adopts the single-point transmission as shown in Figure 1, 2, and a vertical machine comprises: vertical lathe workbench 1, roller bearing are workbench centering 2, bull gear 3, pinion 4, vertical lathe base 5, workbench rail plate 6.
Embodiment
As shown in Figure 3, referring to Fig. 1, a kind of multi-point transmitting method of huge revolving table of the present invention is around the bull gear of huge revolving table three pinions 5 to be set, and makes these pinion rotating speed unanimities, utilizes its meritorious torque F
T1, F
T2, F
T3The common bull gear that drives drives the workbench rotation.
Angle in the present embodiment between three pinions is variant slightly, wherein, it is 125 ° that two pairs of angles between pinion are arranged, another is to being 110 °, this design one is that same error is periodically repeated in the gear drive, and this repetition may bring periodic vibration, the 2nd, and for the radial load F that produces in the balance gear transmission
R1, F
R2, F
R3
In addition, according to actual conditions, pinion also can adopt 4 or 5.
The vertical lathe workbench adopts 3 drivings to have the following advantages:
1. after adopting 3 transmissions, workbench is stressed evenly, running is steady.
2. adopt the mutual balance of radial load on the each point after 3 transmissions.
3. current Electrical Control Technology has not had a difficulty synchronously to 3 transmissions.
This technology also can be used for the huge revolving table of other lathe.
Claims (6)
1. a multi-point transmitting method of huge revolving table is characterized in that, this method is around the bull gear of huge revolving table a plurality of pinions to be set, and these pinion rotating speed unanimities drive bull gear jointly and drive the workbench rotation.
2. a kind of multi-point transmitting method of huge revolving table according to claim 1 is characterized in that, the angle between described a plurality of pinions is all inequality or part is identical or identical.
3. a kind of multi-point transmitting method of huge revolving table according to claim 1 and 2 is characterized in that, described pinion is provided with 3～5.
4. a kind of multi-point transmitting method of huge revolving table according to claim 3 is characterized in that, described pinion is provided with 3, and these 3 pinions angle between any two is 120 ° ± α.
5. a kind of multi-point transmitting method of huge revolving table according to claim 4 is characterized in that, described α≤30 °.
6. a kind of multi-point transmitting method of huge revolving table according to claim 1 is characterized in that, described huge revolving table is by main motor, gearbox, a plurality of pinion and bull gear coordinated drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710039685 CN101041225A (en) | 2007-04-19 | 2007-04-19 | Multi-point transmitting method of huge revolving table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710039685 CN101041225A (en) | 2007-04-19 | 2007-04-19 | Multi-point transmitting method of huge revolving table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101041225A true CN101041225A (en) | 2007-09-26 |
Family
ID=38807130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710039685 Pending CN101041225A (en) | 2007-04-19 | 2007-04-19 | Multi-point transmitting method of huge revolving table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101041225A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107049782A (en) * | 2016-12-21 | 2017-08-18 | 东莞市联洲知识产权运营管理有限公司 | A kind of jacketed pan applied to pharmacy |
| CN110355644A (en) * | 2019-05-17 | 2019-10-22 | 沧州隆利辉电子科技有限公司 | A kind of sheet metal component grinding device |
-
2007
- 2007-04-19 CN CN 200710039685 patent/CN101041225A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107049782A (en) * | 2016-12-21 | 2017-08-18 | 东莞市联洲知识产权运营管理有限公司 | A kind of jacketed pan applied to pharmacy |
| CN110355644A (en) * | 2019-05-17 | 2019-10-22 | 沧州隆利辉电子科技有限公司 | A kind of sheet metal component grinding device |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20070926 |