CN2654945Y - High-speed high-torque transmission case for equidirection double-screw extruder - Google Patents
High-speed high-torque transmission case for equidirection double-screw extruder Download PDFInfo
- Publication number
- CN2654945Y CN2654945Y CN 200320110275 CN200320110275U CN2654945Y CN 2654945 Y CN2654945 Y CN 2654945Y CN 200320110275 CN200320110275 CN 200320110275 CN 200320110275 U CN200320110275 U CN 200320110275U CN 2654945 Y CN2654945 Y CN 2654945Y
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- transmission
- input shaft
- power
- driven gears
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to an improved structure for a transmission box of a co-rotating twin-screw extruder, belonging to rubber and plastics machine technical field. The box body of the transmission box is provided with a power input shaft and two power output shafts; a drive gear and two driven gears are respectively fixed on the power input shaft and two power output shafts. The utility model is characterized in that: the drive gear is directly meshed with two driven gears at the same time. For the improved structure for the drive gear or for the two driven gears, the meshing tooth only bear nearly one second of positive pressure which is produced from the full torque transmission. The utility model has the advantages of obviously lowering the contact press, improving the transmitted torque and rotation speed, realizing former transmission function with minimum number of the transmission tooth, lowering cost, decreasing the size of the transmission box and simplifying the lubrication system.
Description
Technical field
The utility model relates to a kind of mechanical gear, and especially a kind of drive mechanism of parallel dual-screw extrusion press transmission case improves, and belongs to the rubber and plastics machine technical field.
Background technique
Parallel dual-screw extruding machine is a kind of traditional mechanical that is used for all kinds of macromolecular material blending and modifyings, masterbatch filling, in order to realize the rotation in the same way of twin-screw, the transmission case of this machine adopts the driving gear of power input shaft to pass through intermediate gear for a long time always, drive the drive mechanism of two screw rods axle driven gear respectively, to realize power division.
Along with the development of macromolecular material blending and modifying technology, market is to all having higher requirement on parallel dual-screw extruding machine output, efficient, the cost.Especially constantly gushing out of new material technology such as high viscosity, many combination fillings, require parallel dual-screw extruding machine to have more high pulling torque and Geng Gao rotating speed, the performance of existing this type of traditional mechanical adapts with it with difficulty.
Summary of the invention
The purpose of this utility model is: at the defective that traditional mechanical exists, improve by transmission, propose a kind of high torque drive case of parallel dual-screw extrusion press high speed that can satisfy high speed, high torque demand.
In order to reach above purpose, on the casing of the high torque drive case of parallel dual-screw extrusion press high speed of the present utility model a power input shaft and two power output shafts are housed, fixedly driving gear and driven gear respectively on described power input shaft and the power output shaft, its improvements are: described driving gear simultaneously directly with the engagement of two driven gears.
The transmission sports applications of this patent design the basic principle of power dividing, realized the minimized of driving gear number, not only under the prerequisite that keeps original function, cost is minimum, and the transmission case volume is reduced, lubrication system obtains simplifying.
The implication of above-mentioned power dividing basic principle is, be in the transmission of parallel dual-screw extruding machine transmission case power under the basic structure form prerequisite of an air horsepower input, two air horsepower outputs, change in the past that operative gear bears full power transmission, the flank of tooth positive pressure when its monodentate bearing capacity is the full power transmission moment of torsion in the transmission case.Because according to the weakest intensity of the strength of gear teeth is the design principle of contact fatigue strength, contact fatigue strength need be by He Zhi theoretical calculation working life, the cube of flank of tooth positive pressure sizes values and the fatigue life relation of being inversely proportional to wherein, this means by structural design and change single Contact Stress of Gear, reach the optimum life span effect in conjunction with flank of tooth contact frequency, can make all gears of the design all be in above-mentioned meshing relation, simultaneously the gear minimum number.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is an embodiment's of the utility model a structural representation.
Embodiment
Embodiment one
The high torque drive case of parallel dual-screw extrusion press high speed of present embodiment by bearing, is equipped with a power input shaft 1 and two power output shafts 2,3 on the casing as shown in Figure 1.Power input shaft 1 is positioned at lower box, fixing driving gear 4 on the axle.Two power output shafts 2,3 lay respectively at the left and right top of casing, fix two driven gears 5,6 respectively.Three power shafts are down " product " word to be arranged, centre distance each other directly meshes driving gear 4 simultaneously with two driven gears 5,6.
In addition, in order to improve the rigidity of bearing supported end, the casing power take-off portion of present embodiment takes overall structure, therefore avoids dividing box structure to descend because of the bearing stiffness of foozle and temperature distortion generation in the past, and the hidden danger of the bearing life that causes thus reduction.
Understand easily, / 2nd positive pressures that the engaging tooth of driving gear 4 in the present embodiment transmission case and two driven gears 5,6 all only bears full torque transfer and produced, therefore moment of torsion and the rotating speed that is transmitted all can be improved, and the number of gears that is adopted is minimum, has that drive mechanism compactness, manufacture cost reduce, volume is little, a lubricated advantage such as simple.
Claims (3)
1. high torque drive case of parallel dual-screw extrusion press high speed, a power input shaft and two power output shafts are housed on the casing, fixedly driving gear and driven gear respectively on described power input shaft and the power output shaft is characterized in that: described driving gear simultaneously directly with the engagement of two driven gears.
2. according to the high torque drive case of the described parallel dual-screw extrusion press of claim 1 high speed, it is characterized in that: described power input shaft is positioned at lower box, described two power output shafts lay respectively at the left and right top of casing, and three power shafts are down " product " word and arrange.
3. according to the high torque drive case of the described parallel dual-screw extrusion press of claim 2 high speed, it is characterized in that: described casing power take-off portion takes overall structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320110275 CN2654945Y (en) | 2003-10-20 | 2003-10-20 | High-speed high-torque transmission case for equidirection double-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320110275 CN2654945Y (en) | 2003-10-20 | 2003-10-20 | High-speed high-torque transmission case for equidirection double-screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2654945Y true CN2654945Y (en) | 2004-11-10 |
Family
ID=34343599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320110275 Expired - Fee Related CN2654945Y (en) | 2003-10-20 | 2003-10-20 | High-speed high-torque transmission case for equidirection double-screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2654945Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310104A (en) * | 2011-05-15 | 2012-01-11 | 无锡平盛科技有限公司 | Reduction gearbox component of water tank wire drawing machine |
| CN107471594A (en) * | 2017-06-16 | 2017-12-15 | 舟山盈科塑料机械有限公司 | Plastic pipe and the general conical parallel dual-screw extruding machine of sheet material |
| CN107666206A (en) * | 2016-07-28 | 2018-02-06 | 辰阔机电科技(上海)有限公司 | A kind of multi input motor combination gear-box |
-
2003
- 2003-10-20 CN CN 200320110275 patent/CN2654945Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310104A (en) * | 2011-05-15 | 2012-01-11 | 无锡平盛科技有限公司 | Reduction gearbox component of water tank wire drawing machine |
| CN107666206A (en) * | 2016-07-28 | 2018-02-06 | 辰阔机电科技(上海)有限公司 | A kind of multi input motor combination gear-box |
| CN107471594A (en) * | 2017-06-16 | 2017-12-15 | 舟山盈科塑料机械有限公司 | Plastic pipe and the general conical parallel dual-screw extruding machine of sheet material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |