CN201042763Y - Multi-point transmission device of large-scale rotating table - Google Patents
Multi-point transmission device of large-scale rotating table Download PDFInfo
- Publication number
- CN201042763Y CN201042763Y CNU2007200691058U CN200720069105U CN201042763Y CN 201042763 Y CN201042763 Y CN 201042763Y CN U2007200691058 U CNU2007200691058 U CN U2007200691058U CN 200720069105 U CN200720069105 U CN 200720069105U CN 201042763 Y CN201042763 Y CN 201042763Y
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- China
- Prior art keywords
- transmission device
- workbench
- pinion
- revolving table
- huge revolving
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Abstract
The utility model relates to a large-scale rotary worktable multi-point transmission device, which comprises a main motor, a gearbox, a plurality of small gears, and a large gear ring, and a plurality of the small gears are equipped around the large gear ring. Compared with the prior art, the utility model is characterized in that the utility model can improve the stability of the driver, balance the radial force generated in the gear transmission, and so on.
Description
Technical field
The utility model relates to machine tool field, is specifically related to a kind of huge revolving table multiple spot transmission device.
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.
The utility model content
The purpose of this utility model is exactly the huge revolving table multiple spot transmission device 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.
The purpose of this utility model can be achieved through the following technical solutions: a kind of huge revolving table multiple spot transmission device, it is characterized in that, this device comprises main motor, gearbox, a plurality of pinion, bull gear, and described a plurality of pinions are arranged on around the bull gear.
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 ° ± a.
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 utility model 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 utility model.
The specific embodiment
The utility model is described in further detail 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 huge revolving table multiple spot of the utility model transmission device 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; This device also can be used for the huge revolving table of other lathe.
Claims (6)
1. a huge revolving table multiple spot transmission device is characterized in that, this device comprises main motor, gearbox, a plurality of pinion, bull gear, and described a plurality of pinions are arranged on around the bull gear.
2. a kind of huge revolving table multiple spot transmission device 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 huge revolving table multiple spot transmission device according to claim 1 and 2 is characterized in that described pinion is provided with 3～5.
4. a kind of huge revolving table multiple spot transmission device according to claim 3 is characterized in that described pinion is provided with 3, and these 3 pinions angle between any two is 120 ° ± a.
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 huge revolving table multiple spot transmission device 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 |
|---|---|---|---|
| CNU2007200691058U CN201042763Y (en) | 2007-04-19 | 2007-04-19 | Multi-point transmission device of large-scale rotating table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200691058U CN201042763Y (en) | 2007-04-19 | 2007-04-19 | Multi-point transmission device of large-scale rotating table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201042763Y true CN201042763Y (en) | 2008-04-02 |
Family
ID=39257650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200691058U Expired - Fee Related CN201042763Y (en) | 2007-04-19 | 2007-04-19 | Multi-point transmission device of large-scale rotating table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201042763Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 CNU2007200691058U patent/CN201042763Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080402 Termination date: 20100419 |