CN201636274U - Power input speed change mechanism for linear three-screw extruder - Google Patents
Power input speed change mechanism for linear three-screw extruder Download PDFInfo
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- CN201636274U CN201636274U CN2010201374451U CN201020137445U CN201636274U CN 201636274 U CN201636274 U CN 201636274U CN 2010201374451 U CN2010201374451 U CN 2010201374451U CN 201020137445 U CN201020137445 U CN 201020137445U CN 201636274 U CN201636274 U CN 201636274U
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- speed change
- change gear
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Abstract
The utility model relates to a speed change device, in particular to a speed change mechanism for a power input end of a linear three-screw extruder. The speed change mechanism for the power input end of the linear three-screw extruder comprises a box body and a speed change mechanism fixedly arranged in the box body and also comprises power output shafts (1, 2 and 3) linearly arranged in parallel, a power input shaft (4), a speed change gear (5) fixedly arranged on the power output shaft (1) and speed change gears (6 and 7) fixedly arranged on the power output shafts (2 and 3). The power output shaft (2) drives the output power by a pair of elastic uniform-loading torsion gear shafts (10 and 101). The power output shaft (3) drives the output power by a pair of elastic uniform-loading torsion gear shafts (13 and 131). Due to the adoption of the technical scheme, a reduction box can work under the larger torque, so as to improve the working efficiency.
Description
Technical field
The utility model relates to a kind of gear shift device, especially a kind of gear that is used for yi word pattern three-screw extruder power intake.
Background technique
At present, in the plastics field that is mixed, the general parallel double-screw extruder of Shi Yonging, its transmission is parallel two shaft types output.Along with the continuous development of modern plastic cement industry, the extensive use of especially high filling, high dispersive material and to the requirement of aspects such as low energy consumption, the rubber and plastic process equipment develops to diversification, multiscrew direction.Three screw rod extrusion systems have better shunting effect with respect to the traditional double screw rod and shear more frequently, promptly have better distribution and mix and disperse mixing, has bigger ventable interface area simultaneously, more help bleeding, make exhaust drop to minimum and have lower advantages such as energy consumption the influence of output, therefore, the deceleration for the parallel three-screw extruder of yi word pattern distributes the design of transmission case also to become the emphasis of field development for this reason.The deceleration that China's utility model patent (patent No. ZL200620154843.8) discloses a kind of three-screw extruder in the same way distributes the transmission case structure, its power source drives high speed E input shaft and A reduction pinion teeth, the A reduction pinion teeth drives B deceleration gearwheel, thereby drive C reduction pinion teeth and B output shaft, the B output shaft is directly exported; The C reduction pinion teeth is leaded up to and is driven D deceleration gearwheel and drive E speedup gearwheel with the D jack shaft, and E speedup gearwheel drives F speedup small gear, thereby drives the rotation of A output shaft; Another road of symmetry is to drive H speedup gearwheel by I deceleration gearwheel and F jack shaft, H speedup gearwheel drives G speedup small gear, thereby driving the C output shaft rotates, promptly adopt reduction pinion teeth to mesh two deceleration gearwheels simultaneously, each deceleration gearwheel is realized transmission process by coaxial speedup gearwheel and the speedup pinion on the output shaft of both sides.Adopt this technological scheme, though can realize to input power divide parallel three the tunnel in the same way, with fast, coaxial, export with moment of torsion, improved manufacturing efficiency, but based on the big then higher operation basis of working efficiency of input power, when the power source input power is big, because every output shaft of this structure has only a rooted tooth wheel shaft that power is provided, make the bearing capacity of transmission device be difficult to improve, if promptly moment of torsion is excessive, gear shaft is fracture easily often, therefore it can not bear bigger power source input, makes that the moment of torsion of its output is little.The monodentate transmission can not be offset each output shaft radial force, and structure and life-span are all unstable.
The model utility content
For solving the deficiencies in the prior art, the utility model provides a kind of can the realization to provide the even power that carries to pto, make the bearing capacity of transmission device improve greatly, and then the power-input speed-change mechanism of the yi word pattern three-screw extruder of higher output torque can be provided.
For achieving the above object, the power-input speed-change mechanism of yi word pattern three-screw extruder of the present utility model, form by casing and the gear that is fixedly installed in the casing, described gear comprises the pto (1 that a word is arranged in parallel and is provided with, 2,3), power input shaft (4), be fixedly installed on the speed change gear (5) on the pto (1) and be fixedly installed on pto (2,3) speed change gear (6 on, 7), described pto (1,2,3), power input shaft (4) all is arranged on the casing by bearing fixing, power input shaft (4) drives directly outputting power of pto (1) by being mated continuous speed change gear group, described pto (2) is by a pair of identical, coaxial being fixedly connected with and speed change gear (6), the speed change gear (8 that speed change gear (5) engagement links to each other, 81) and the rubber-like of speed change gear (9,91) all carry torsion gear shaft (10,101) and drive outputting power; Described pto (3) is by a pair of identical, the coaxial speed change gear (11 that links to each other with speed change gear (7), speed change gear (5) engagement that is fixedly connected with, 111) and speed change gear (12,121) rubber-like all carries torsion gear shaft (13,131) and drives outputting power.
Improvement as aforesaid way, described speed change gear (5) is a reduction pinion teeth, and speed change gear (6,7) is the speedup small gear, speed change gear (8,81) be the speedup gearwheel, speed change gear (9,91) deceleration gearwheel, speed change gear (11,111) be the speedup gearwheel, speed change gear (12,121) is the deceleration gearwheel.
The overall ratio that one-level between one-level speedup between above-mentioned speed change gear (8) and the speed change gear (6) and speed change gear (5) and the speed change gear (9) is slowed down is one.
Further, the overall ratio of the deceleration of the one-level between one-level speedup between speed change gear (11) and the speed change gear (7) and speed change gear (5) and the speed change gear (12) is one.
In addition, the speed change gear group is made up of the speed change gear (15) that is fixedly installed on the pto (1) that is fixedly installed on the speed change gear (14) on the power input shaft (4) and link to each other with its engagement, described speed change gear (14) and power input shaft (4) are coaxial to be a gear shaft, and speed change gear (15) and speed change gear (5), pto (1) is coaxial is a gear shaft.
Above-mentioned speed change gear (14) is a reduction pinion teeth, and speed change gear (15) is the deceleration gearwheel.
Adopt technique scheme, all adopt two all to carry the torsion gear shaft and provide power to every pto of both sides for it, in the delivery process of carrying than high pulling torque, because all carrying the torsion gear shaft, each adopt elastic material to make, if two all carry the torsion gear shaft can not be simultaneously with the pto engagement driving time, promptly when the excessive power of carrying in the gear engagement process of a torsion gear shaft wherein, during the distortion of torsion gear shaft, then in movement process, the bad torsion gear shaft that all carries of another root engagement is in time corrected the engaging position to the optimum position, continue to provide power, thereby guaranteed the transmission of high pulling torque, its torque coefficient can reach 9～14.At this moment, the torsion gear shaft that all carries that has that trace changes becomes original state according to himself elastic return, has improved the working life of this gear.
Description of drawings
Below in conjunction with the drawings and the specific embodiments the utility model is done further to describe in detail.
Fig. 1 is the overall structure schematic representation of reducing gear in the utility model speed reducer casing.
Embodiment
This gear is input as example to realize deceleration power, and power intake adopts 6 grades of motors of 132KW, and rotating speed is 1200 commentaries on classics/min, and input torque is 1050.5NM.By as can be known shown in Figure 1, the power-input speed-change mechanism of yi word pattern three-screw extruder of the present utility model, wherein, speed change gear 5 is a reduction pinion teeth, adopts 21 teeth, speed change gear 6,7 is the speedup small gear, all adopts 21 teeth, speed change gear 8,81 is the speedup gearwheel, all adopts 42 teeth, speed change gear 9,91 deceleration gearwheels, 42 teeth of same employing, speed change gear 11,111 is the speedup gearwheel, adopt 42 teeth, speed change gear 12,121 is the deceleration gearwheel, equally all adopts 42 teeth, speed change gear 14 is a reduction pinion teeth, adopt 18 teeth, speed change gear 15 is the deceleration gearwheel, adopts 72 teeth.
Its gear comprises the pto 1 that a word is arranged in parallel and is provided with, 2,3, power input shaft 4, be fixedly installed on the speed change gear 5 on the pto 1 and be fixedly installed on pto 2, speed change gear 6 on 3,7, pto 1,2,3 countershaft centre distance are 4.3cm, be set with speed change gear 14 on the power input shaft 4, speed change gear 14 and power input shaft 4 are coaxial to be a gear shaft, be set with speed change gear 15 on the pto 1, speed change gear 15 and speed change gear 5, pto 1 is coaxial to be a gear shaft, speed change gear 14 links to each other with speed change gear 15 engagements, formation is slowed down to the one-level of power input source, and then realizes driving pto 1 direct outputting power.
Pto 2 and pto 3 parallel, the equally spaced both sides that are arranged at pto 1, pto 2 is by a pair of speed change gear 8 that has, 81 and speed change gear 9,91 rubber-like all carries torsion gear shaft 10,101 drive outputting power, all carry the torsion gear shaft and can adopt 38 chrome molybdenum aluminium elastomeric material to make.Specifically, all carry on the torsion gear shaft 10 speed change gear 9 with link to each other in 5 engagements of a side and speed change gear, the speed change gear 6 on speed change gear 8 and the pto 2 portion thereon meshes; With all carry torsion gear shaft 10 identical and with carry all that torsion gear shaft 10 vertically is provided with all carry on the torsion gear shaft 101 speed change gears 91 simultaneously with speed change gear 5 in the one side and below speed change gear 9 with speed change gear 5 engagements, speed change gear 81 meshes in its below with speed change gear 6 simultaneously, and when being provided with, between the speed change gear 8 and 81, be not meshed each other between the speed change gear 9 and 91.This structure setting guarantees that promptly pto 2 all carries torsion gear shaft 10.101 and drives and link to each other by being mated continuous two.And the overall ratio that the one-level between one-level speedup between speed change gear 8 and the speed change gear 6 and speed change gear 5 and the speed change gear 9 is slowed down is one, guarantees that promptly pto 2 is identical with the rotating speed of pto 1 output.
In like manner, pto 3 is symmetrical arranged in pto 1 with pto 2, and it drives outputting power by a pair of torsion gear shaft 13,131 that all carries that has speed change gear 11,111 and speed change gear 12,121.Specifically, the speed change gear 12 that all carries on the torsion gear shaft 13 links to each other in the engagement of one side with speed change gear 5, and speed change gear 11 is held engagement thereon with the speed change gear 7 on the pto 3; With all carry torsion gear shaft 13 identical and with carry all that torsion gear shaft 13 vertically is provided with all carry on the torsion gear shaft 131 speed change gear 121 simultaneously with speed change gear 5 in the one side and be positioned at speed change gear 12 belows and speed change gear 5 meshes, speed change gear 111 meshes in its bottom with change speed pinion 7 simultaneously, and when being provided with, between the speed change gear 11 and 111, be not meshed each other between the speed change gear 12 and 121.This structure setting guarantees that promptly pto 3 all carries torsion gear shaft 13,131 and drives and link to each other by being mated continuous two.The overall ratio that one-level between one-level speedup between speed change gear 11 and the speed change gear 7 and speed change gear 5 and the speed change gear 12 is slowed down is one, and speed change gear 8 is identical with speed change gear 11, guarantees that promptly pto 3 is identical with the rotating speed of pto 1 and pto 2 outputs.
Pto 1,2,3, power input shaft 4, all carry torsion gear shaft 10,101,13,131 and all be arranged on the casing by bearing fixing.
In use, 4 runnings of drive power source power input shaft, power input shaft 4 drives speed change gear 14 and drives speed change gear 15 runnings, and then drives speed change gear 5 running and pto 1 direct outputting powers; Speed change gear 5 drives simultaneously and is mated continuous speed change gear 9,91,12,121 running, and then drives the running of pto 2,3, has guaranteed pto 1,2,3 in the same way, with speed, with the moment of torsion parallel running.Record output shaft 1,2,3 output torques are 1050.29, according to torque coefficient=output torque/axle centre distance
3The calculated torque coefficient, the torque coefficient that adopts this structure is 13.21.
Be appreciated that from above-mentioned explanation, all adopt two all to carry the torsion gear shaft and provide power at pto 2,3 for it, so that in bearing the high pulling torque working procedure, even wherein one all carries the torsional deformation of torsion gear shaft generation several angle and breaks away from when engagement, another root all carries the torsion gear shaft can in time correct the engaging position to the optimum position in operation process, continue to provide power, guaranteed the output of high pulling torque, and then improved working efficiency.
Speed change gear on the output shaft 1 offsets axial force because of the speed change gear engagement of while with four symmetries. Speed change gear 8,81 meshes the speed change gear 6 on the output shaft 2 simultaneously, and output shaft 2,3 radial forces of output shaft are cancelled each other.Speed change gear 9,91 and speed change gear 12,121 mesh speed change gear 5 simultaneously, and it is zero that the radial force of speed change gear 5 is offset, and have prolonged the working life of axle and gear, and structure is more stable.By the helix angle design of speed change gear 6,8,81, can offset the axial thrust of output shaft, thereby alleviate the end thrust that bearing pack is born.
The utility model is not limited to above-mentioned embodiment; as long as pto the 2, the 3rd adopts rubber-like all to carry the torsion gear shaft and drives outputting power; no matter which kind of mode the gear ratio between its speed change gear group, the position relation of all carrying torsion gear shaft and each gear engagement adopt, all drop among the protection domain of the present utility model.
Claims (6)
1. the power-input speed-change mechanism of a yi word pattern three-screw extruder, form by casing and the gear that is arranged in the casing, described gear comprises the pto (1 that a word is arranged in parallel and is provided with, 2,3), power input shaft (4), be fixedly installed on the speed change gear (5) on the pto (1) and be fixedly installed on pto (2,3) speed change gear (6 on, 7), power input shaft (4) drives directly outputting power of pto (1) by being mated continuous speed change gear group, it is characterized in that: described pto (2) is by a pair of identical, coaxial being fixedly connected with and speed change gear (6), the speed change gear (8 that speed change gear (5) engagement links to each other, 81) and speed change gear (9,91) rubber-like all carries torsion gear shaft (10,101) and drives outputting power; Described pto (3) is by a pair of identical, the coaxial speed change gear (11 that links to each other with speed change gear (7), speed change gear (5) engagement that is fixedly connected with, 111) and speed change gear (12,121) rubber-like all carries torsion gear shaft (13,131) and drives outputting power.
2. the power-input speed-change mechanism of yi word pattern three-screw extruder according to claim 1, it is characterized in that: described speed change gear (5) is a reduction pinion teeth, and speed change gear (6,7) is the speedup small gear, speed change gear (8,81) be the speedup gearwheel, speed change gear (9,91) deceleration gearwheel, speed change gear (11,111) be the speedup gearwheel, speed change gear (12,121) is the deceleration gearwheel.
3. the power-input speed-change mechanism of yi word pattern three-screw extruder according to claim 2 is characterized in that: the overall ratio that the one-level between one-level speedup between described speed change gear (8) and the speed change gear (6) and speed change gear (5) and the speed change gear (9) is slowed down is one.
4. the power-input speed-change mechanism of yi word pattern three-screw extruder according to claim 2 is characterized in that: the overall ratio that the one-level between one-level speedup between described speed change gear (11) and the speed change gear (7) and speed change gear (5) and the speed change gear (12) is slowed down is one.
5. the power-input speed-change mechanism of yi word pattern three-screw extruder according to claim 1, it is characterized in that: described speed change gear group is made up of the speed change gear (15) that is fixedly installed on the pto (1) that is fixedly installed on the speed change gear (14) on the power input shaft (4) and link to each other with its engagement, described speed change gear (14) and power input shaft (4) are coaxial to be a gear shaft, and speed change gear (15) and speed change gear (5), pto (1) is coaxial is a gear shaft.
6. the power-input speed-change mechanism of yi word pattern three-screw extruder according to claim 7 is characterized in that: described speed change gear (14) is a reduction pinion teeth, and speed change gear (15) is the deceleration gearwheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201374451U CN201636274U (en) | 2010-03-23 | 2010-03-23 | Power input speed change mechanism for linear three-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201374451U CN201636274U (en) | 2010-03-23 | 2010-03-23 | Power input speed change mechanism for linear three-screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636274U true CN201636274U (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201374451U Expired - Lifetime CN201636274U (en) | 2010-03-23 | 2010-03-23 | Power input speed change mechanism for linear three-screw extruder |
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| CN (1) | CN201636274U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807359A (en) * | 2012-11-15 | 2014-05-21 | 上海工程技术大学 | Wide-temperature high-rotary-speed multi-head driver |
| CN107100961A (en) * | 2017-05-09 | 2017-08-29 | 天津工业大学 | A kind of branch of power two divides transmission system of confluxing |
-
2010
- 2010-03-23 CN CN2010201374451U patent/CN201636274U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807359A (en) * | 2012-11-15 | 2014-05-21 | 上海工程技术大学 | Wide-temperature high-rotary-speed multi-head driver |
| CN107100961A (en) * | 2017-05-09 | 2017-08-29 | 天津工业大学 | A kind of branch of power two divides transmission system of confluxing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |
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| CX01 | Expiry of patent term |