CN101956785B - Zero arc-tooth bevel gear of farming speed reducer and processing method - Google Patents
Zero arc-tooth bevel gear of farming speed reducer and processing method Download PDFInfo
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- CN101956785B CN101956785B CN201010294915XA CN201010294915A CN101956785B CN 101956785 B CN101956785 B CN 101956785B CN 201010294915X A CN201010294915X A CN 201010294915XA CN 201010294915 A CN201010294915 A CN 201010294915A CN 101956785 B CN101956785 B CN 101956785B
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- 238000003672 processing method Methods 0.000 title claims abstract description 11
- 239000003638 chemical reducing agent Substances 0.000 title abstract 3
- 238000009313 farming Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000000227 grinding Methods 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 7
- 238000005121 nitriding Methods 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000010009 beating Methods 0.000 claims description 6
- 238000005242 forging Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- 150000002910 rare earth metals Chemical class 0.000 claims description 4
- 238000000137 annealing Methods 0.000 claims description 3
- 238000005422 blasting Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000008439 repair process Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000005275 alloying Methods 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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Abstract
The invention discloses a zero arc-tooth bevel gear of a farming speed reducer, comprising an arc-tooth large bevel gear and an arc-tooth small bevel gear. The arc teeth of the arc-tooth large bevel gear and the arc-tooth small bevel gear are zero arc teeth and are engaged. The invention also discloses a processing method of the zero arc-tooth bevel gear of the farming speed reducer. According to the method, the arc teeth of the arc-tooth large bevel gear and the arc-tooth small bevel gear are processed into zero arc teeth. When the arc-tooth large bevel gear and the arc-tooth small bevel gear engaged to transfer power, the zero arc-tooth bevel gear has the advantages of favorable transmission stability, low noise, high bearing capability, low assembly error and unbalance loading sensitivity, and the like, has acting force identical to the stress of a straight-teeth bevel gear, high strength, smaller assembly axial force and low degree of damage to a box bearing and can be subjected to the gear grinding to suit the requirement on a high-accuracy transmission system. Meanwhile, the zero arc-tooth bevel gear processed by using the processing method of the invention has the advantages of high processing efficiency, great surface hardness and longer service life.
Description
Technical field
The present invention relates to a kind of spiral bevel gear and processing method, relate in particular to a kind of agricultural ploughing machine retarder zero bevel gear and processing method.
Background technique
At present, the commonplace power transmission mechanism that on farm machinery, adopts mainly contains gear transmission, and gear transmission both can change the direction of transmission of power, can change the rotating speed of power output simultaneously.
In the existing technology, it is 10 °～15 ° arc bevel gear (as shown in Figure 2) that gear commonly used has straight bevel gear (as shown in Figure 1) and radian.Advantages such as straight bevel gear has that power loss is little, the assembling axial force is little, little and bending resistance is good to the damaged condition of casing bearing, but exist work efficiency low, shortcoming such as transmission stability difference and noise are big; The arc bevel gear has work efficiency height, transmission stability is good and noise is little advantage, but have that power loss is big, the assembling axial force is big, to shortcomings such as the damaged condition of casing bearing are big.
Summary of the invention
To the above-mentioned deficiency that existing technology exists, the invention provides that a kind of work efficiency is high, transmission stability is better, noise is less, the transmitted power loss is less, the assembling axial force is less, less to the damaged condition of casing bearing, anti-bending strength good and the agricultural ploughing machine retarder zero bevel gear and the processing method of longer service life.
A kind of agricultural ploughing machine retarder zero bevel gear provided by the invention comprises curved tooth bevel gear wheel and curved tooth bevel pinion, the tooth engagement mutually of the curved tooth of said curved tooth bevel gear wheel and curved tooth bevel pinion; The curved tooth of said curved tooth bevel gear wheel and curved tooth bevel pinion is the zero degree curved tooth.
Further, pressure angle а=25 of said curved tooth bevel gear wheel and curved tooth bevel pinion °.
Simultaneously, the present invention also provides a kind of processing method of agricultural ploughing machine retarder zero bevel gear, comprises the following steps:
1) the tooth base of forging curved tooth bevel gear wheel, the tooth base of forging curved tooth bevel pinion;
2), to tooth base annealing in process;
3) respectively the tooth base of curved tooth bevel gear wheel and the tooth base of curved tooth bevel pinion are processed:
3.1) the tooth base manufacturing procedure of curved tooth bevel gear wheel comprises: drill through the anchor clamps on hole-finish turning through hole and rough turn large end face-car circular groove-garland key-finish turning small end face-finish turning large end face-car conical surface-adjustment curved tooth numerical control gear milling lathe; Anchor clamps location periphery and beating of datum end face are controlled in the 0.01mm; Curved tooth bevel gear wheel workpiece positioning hole to be processed and the gap control between the anchor clamps locating face are in 0.005mm～0.015mm scope; Choose the two-sided finishing bevel gear cuter dish of spiral bevel gear; Adopt the two-sided method processing of odd numbers, the curved tooth bevel gear wheel is processed as zero degree curved tooth bevel gear wheel, pressure angle а=25 °;
3.2) the tooth base manufacturing procedure of curved tooth bevel pinion comprises: the anchor clamps on the big end end face of car-brill big end center hole-car small end end face-brill small end center hole-finish turning large end face-finish turning axle periphery and the back frame conical surface-axletree end thread-brill stopping pin shaft hole-adjustment curved tooth numerical control gear milling lathe; The positioning hole and the beating of anchor clamps end face of anchor clamps are controlled in the 0.01mm; Curved tooth bevel pinion workpiece location cylindrical to be processed and the gap control between the anchor clamps locating face are in the 0.005mm-0.015mm scope; Choose the two-sided finishing bevel gear cuter dish of spiral bevel gear; Adopt the two-sided method processing of odd numbers; The curved tooth bevel pinion is processed as zero degree curved tooth bevel pinion, pressure angle а=25 °;
4) to the precision adjustment of the circular tooth contact of zero degree curved tooth bevel gear wheel and zero degree curved tooth bevel pinion and revise:
4.1) the adjustment contact area is along the position of tooth length direction: the data that the change amount of eccentric angle provides according to checking machine; Adjust Y2250 mill teeth machine by the variable quantity and the direction of the male and fomale(M&F) eccentric angle of confirming respectively; The eccentric angle of the cradle drum through changing Y2250 mill teeth machine changes cutter spacing; Change the helix angle of the gear teeth through the way that changes cutter spacing, revise the concave surface and the convex surface of zero degree curved tooth;
4.2) adjustment of contact area on the tooth depth direction: the change amount in horizontal position of wheel is to determine according to the mounting distance change amount on the checking machine, adopts the horizontal position of wheel when changing cutting to revise pressure angle;
4.3) contact area is along the adjustment of tooth length direction: bearing length depends mainly on the poor of two conjugate tooth profiles nodel line radius of curvature, changes facing cutter cutter tooth moulding diameter of a circle with the method for changing flat gasket and revises;
5) heat treatment:
5.1) zero degree curved tooth bevel gear wheel and the zero degree curved tooth bevel pinion of processing put into to vacuumize protect gas nitrogen stove to heat; Heating-up temperature is between 860 ℃～900 ℃; Splash into diffusion medium and carry out the carbon, nitrogen and boron multicomponent thermochemical treatment; Heating-up temperature is brought up to 900 ℃, is incubated one hour, and cools to 180 ℃～200 ℃ with the furnace; In nitriding furnace, carry out the rare earth gas soft nitriding again; After 500 ℃ of temper;
5.2) Shot Blasting;
6) correct grinding:
6.1) repair the center hole that grinds zero degree curved tooth bevel pinion two ends;
6.2) and finish grind zero degree curved tooth bevel pinion the axle cylindrical.
Beneficial effect of the present invention: the present invention is processed as the zero degree curved tooth with the curved tooth of curved tooth bevel gear wheel and curved tooth bevel pinion; During zero degree curved tooth bevel gear wheel and zero degree curved tooth bevel pinion engagement transferring power, it is better to have a transmission stability, and noise is low; Power loss is little; The assembling axial force is less, and less to the damaged condition of casing bearing, anti-bending strength is better; Through method processing of the present invention, work efficiency is high simultaneously, and surface hardness is big, longer service life.
Description of drawings
Fig. 1 is the structural representation of straight bevel gear in the existing technology.
Fig. 2 is the structural representation of arc bevel gear in the existing technology.
Fig. 3 is the structural representation of agricultural ploughing machine retarder zero bevel gear of the present invention.
Fig. 4 is the cross section view of curved tooth bevel gear wheel;
Among the figure, 3-through hole; 4-large end face; 5-circular groove; 6-spline; 7-small end face;
8-conical surface.
Fig. 5 is the structural representation of curved tooth bevel pinion;
Among the figure, 9-large end face; 10-small end face; 11-small end center hole; 12-axle periphery; 13-back cone; 14-shaft end.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done to describe in further detail.
Fig. 3 is the structural representation of agricultural ploughing machine retarder zero bevel gear of the present invention, and is as shown in the figure.Agricultural ploughing machine retarder zero bevel gear comprises curved tooth bevel gear wheel 1 and curved tooth bevel pinion 2, the tooth engagement mutually of the curved tooth of curved tooth bevel gear wheel 1 and curved tooth bevel pinion 2; The curved tooth of said curved tooth bevel gear wheel 1 and curved tooth bevel pinion 2 is the zero degree curved tooth.Pressure angle а=25 of curved tooth bevel gear wheel 1 and curved tooth bevel pinion 2 °.
The processing method of agricultural ploughing machine retarder zero bevel gear comprises the following steps:
1) the tooth base of forging curved tooth bevel gear wheel, the tooth base of forging curved tooth bevel pinion.
2) heat treatment: the tooth base is carried out annealing in process.
3) respectively the tooth base of curved tooth bevel gear wheel and the tooth base of curved tooth bevel pinion are processed.
3.1) the tooth base manufacturing procedure of curved tooth bevel gear wheel comprises: drill through the anchor clamps on hole-finish turning through hole and rough turn large end face-car circular groove-garland key-finish turning small end face-finish turning large end face-car conical surface-adjustment curved tooth numerical control gear milling lathe; Anchor clamps location periphery and beating of datum end face are controlled in the 0.01mm; Curved tooth bevel gear wheel workpiece positioning hole to be processed and the gap control between the anchor clamps locating face are in 0.005mm～0.015mm scope; Choose the two-sided finishing bevel gear cuter dish of spiral bevel gear; Adopt the two-sided method processing of odd numbers, the curved tooth bevel gear wheel is processed as zero degree curved tooth bevel gear wheel, pressure angle а=25 °.
3.2) the tooth base manufacturing procedure of curved tooth bevel pinion comprises: the anchor clamps on car large end face-brill big end center hole-car small end face-brill small end center hole-finish turning large end face-finish turning axle periphery and the back frame conical surface-axletree end thread-brill stopping pin shaft hole-adjustment curved tooth numerical control gear milling lathe; The positioning hole and the beating of anchor clamps end face of anchor clamps are controlled in the 0.01mm; Curved tooth bevel pinion workpiece location cylindrical to be processed and the gap control between the anchor clamps locating face are in the 0.005mm-0.015mm scope; Choose the two-sided finishing bevel gear cuter dish of spiral bevel gear; Adopt the two-sided method processing of odd numbers; The curved tooth bevel pinion is processed as zero degree curved tooth bevel pinion, pressure angle а=25 °.
4) to the precision adjustment of the circular tooth contact of zero degree curved tooth bevel gear wheel and zero degree curved tooth bevel pinion and revise:
4.1) the adjustment contact area is along the position of tooth length direction: the data that the change amount of eccentric angle provides according to checking machine; Adjust Y2250 mill teeth machine by the variable quantity and the direction of the male and fomale(M&F) eccentric angle of confirming respectively; The eccentric angle of the cradle drum through changing Y2250 mill teeth machine changes cutter spacing; Change the helix angle of the gear teeth through the way that changes cutter spacing, revise the concave surface and the convex surface of zero degree curved tooth.
4.2) adjustment of contact area on the tooth depth direction: the change amount in horizontal position of wheel is to determine according to the mounting distance change amount on the checking machine, adopts the horizontal position of wheel when changing cutting to revise pressure angle.
4.3) contact area is along the adjustment of tooth length direction: bearing length depends mainly on the poor of two conjugate tooth profiles nodel line radius of curvature, changes facing cutter cutter tooth moulding diameter of a circle with the method for changing flat gasket and revises.
5) heat treatment:
5.1) zero degree curved tooth bevel gear wheel and the zero degree curved tooth bevel pinion of processing put into to vacuumize protect gas nitrogen stove to heat; Heating-up temperature is between 860 ℃～900 ℃; Splash into diffusion medium and carry out the carbon, nitrogen and boron multicomponent thermochemical treatment, heating-up temperature is brought up to 900 ℃, is incubated one hour; Make gear surface dissolve in more carbon and alloying element, and cool to 180 ℃～200 ℃ with the furnace; In nitriding furnace, carry out the rare earth gas soft nitriding again, improve the red hardness of gear surface, thus combination properties such as raising antifatigue; After 500 ℃ of temper.
5.2) Shot Blasting.
6) correct grinding:
6.1) repair the center hole that grinds zero degree curved tooth bevel pinion two ends.
6.2) and finish grind zero degree curved tooth bevel pinion the axle cylindrical.
In the above-mentioned processing method, choose the two-sided finishing bevel gear cuter dish of spiral bevel gear, adopt the two-sided method processing of odd numbers processing, work efficiency is high; Adopt gear surface to carry out carbon, nitrogen and boron multicomponent thermochemical treatment and rare earth gas soft nitriding simultaneously, gear surface hardness is big, longer service life.
Explanation is at last; Above embodiment is only unrestricted in order to technological scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technological scheme of the present invention; And not breaking away from the aim and the scope of technological scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (1)
1. the processing method of an agricultural ploughing machine retarder zero bevel gear is characterized in that, comprises the following steps:
1) the tooth base of forging curved tooth bevel gear wheel, the tooth base of forging curved tooth bevel pinion;
2) to tooth base annealing in process;
3) respectively the tooth base of curved tooth bevel gear wheel and the tooth base of curved tooth bevel pinion are processed:
3.1) the tooth base manufacturing procedure of curved tooth bevel gear wheel comprises: drill through the anchor clamps on hole-finish turning through hole and rough turn large end face-car circular groove-garland key-finish turning small end face-finish turning large end face-car conical surface-adjustment curved tooth numerical control gear milling lathe; Anchor clamps location periphery and beating of datum end face are controlled in the 0.01mm; Curved tooth bevel gear wheel workpiece positioning hole to be processed and the gap control between the anchor clamps locating face are in 0.005mm～0.015mm scope; Choose the two-sided finishing bevel gear cuter dish of spiral bevel gear; Adopt the two-sided method processing of odd numbers, the curved tooth bevel gear wheel is processed as zero degree curved tooth bevel gear wheel, pressure angle а=25 °;
3.2) the tooth base manufacturing procedure of curved tooth bevel pinion comprises: the anchor clamps on the big end end face of car-brill big end center hole-car small end end face-brill small end center hole-finish turning large end face-finish turning axle periphery and the back frame conical surface-axletree end thread-brill stopping pin shaft hole-adjustment curved tooth numerical control gear milling lathe; The positioning hole and the beating of anchor clamps end face of anchor clamps are controlled in the 0.01mm; Curved tooth bevel pinion workpiece location cylindrical to be processed and the gap control between the anchor clamps locating face are in the 0.005mm-0.015mm scope; Choose the two-sided finishing bevel gear cuter dish of spiral bevel gear; Adopt the two-sided method processing of odd numbers; The curved tooth bevel pinion is processed as zero degree curved tooth bevel pinion, pressure angle а=25 °;
4) to the precision adjustment of the circular tooth contact of zero degree curved tooth bevel gear wheel and zero degree curved tooth bevel pinion and revise:
4.1) the adjustment contact area is along the position of tooth length direction: the data that the change amount of eccentric angle provides according to checking machine; Adjust Y2250 mill teeth machine by the variable quantity and the direction of the male and fomale(M&F) eccentric angle of confirming respectively; The eccentric angle of the cradle drum through changing Y2250 mill teeth machine changes cutter spacing; Change the helix angle of the gear teeth through the way that changes cutter spacing, revise the concave surface and the convex surface of zero degree curved tooth;
4.2) adjustment of contact area on the tooth depth direction: the change amount in horizontal position of wheel is to determine according to the mounting distance change amount on the checking machine, adopts the horizontal position of wheel when changing cutting to revise pressure angle;
4.3) contact area is along the adjustment of tooth length direction: bearing length depends mainly on the poor of two conjugate tooth profiles nodel line radius of curvature, changes facing cutter cutter tooth moulding diameter of a circle with the method for changing flat gasket and revises;
5) heat treatment:
5.1) zero degree curved tooth bevel gear wheel and the zero degree curved tooth bevel pinion of processing put into to vacuumize protect gas nitrogen stove to heat; Heating-up temperature is between 860 ℃～900 ℃; Splash into diffusion medium and carry out the carbon, nitrogen and boron multicomponent thermochemical treatment; Heating-up temperature is brought up to 900 ℃, is incubated one hour, and cools to 180 ℃～200 ℃ with the furnace; In nitriding furnace, carry out the rare earth gas soft nitriding again; After 500 ℃ of temper;
5.2) Shot Blasting;
6) correct grinding:
6.1) repair the center hole that grinds zero degree curved tooth bevel pinion two ends;
6.2) and finish grind zero degree curved tooth bevel pinion the axle cylindrical.
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| CN201010294915XA CN101956785B (en) | 2010-09-28 | 2010-09-28 | Zero arc-tooth bevel gear of farming speed reducer and processing method |
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| CN201010294915XA CN101956785B (en) | 2010-09-28 | 2010-09-28 | Zero arc-tooth bevel gear of farming speed reducer and processing method |
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| CN101956785B true CN101956785B (en) | 2012-05-23 |
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| CN102720682B (en) * | 2011-03-30 | 2016-01-13 | 比亚迪股份有限公司 | The head-shaking device of fan and fan |
| CN103244641A (en) * | 2012-08-17 | 2013-08-14 | 六安市智伟汽车齿轮有限责任公司 | Tractor and reduction gearbox vertical transmission device for crawler loader |
| CN104057268A (en) * | 2014-07-02 | 2014-09-24 | 柳州市汉森机械制造有限公司 | Manufacturing method for bevel gears of agricultural cultivators |
| CN104975160A (en) * | 2015-06-18 | 2015-10-14 | 柳州科尔特锻造机械有限公司 | Thermal treatment method for driving and driven bevel gears |
| CN105057994B (en) * | 2015-07-28 | 2017-03-29 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing method of the short taper hole gear of Mohs |
| CN105583591B (en) * | 2016-03-21 | 2018-01-26 | 江阴市科安传动机械有限公司 | The processing technology of low module spiral bevel gear |
| CN109207705A (en) * | 2018-10-15 | 2019-01-15 | 金华新天齿轮有限公司 | The processing method for improving K series reduction bevel gear pair contact quality |
| CN110219943B (en) * | 2019-05-27 | 2022-03-29 | 重庆川仪速达机电有限公司 | Torque amplification structure and transmission device for urban rail transit door body |
| CN110125624A (en) * | 2019-05-31 | 2019-08-16 | 宁夏天地奔牛实业集团有限公司 | A kind of spiral gear with duplex tapered teeth processing method suitable for different teeth |
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| CN2641078Y (en) * | 2003-09-11 | 2004-09-15 | 中国纺织机械股份有限公司 | Bevel gear driving gear of jet loom opening mechanism |
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