CN202937760U - Herringbone wheel shaft - Google Patents
Herringbone wheel shaft Download PDFInfo
- Publication number
- CN202937760U CN202937760U CN 201220628090 CN201220628090U CN202937760U CN 202937760 U CN202937760 U CN 202937760U CN 201220628090 CN201220628090 CN 201220628090 CN 201220628090 U CN201220628090 U CN 201220628090U CN 202937760 U CN202937760 U CN 202937760U
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- gear
- axis body
- locating face
- herringbone
- shoulder
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Abstract
The utility model relates to a herringbone wheel shaft. The herringbone wheel shaft comprises a shaft body, wherein a left-handed rotation gear and a right-handed rotation gear are fixed in the middle part of the shaft body and are symmetrically arranged on the two sides of a centre line of the shaft body; the herringbone wheel shaft is characterized in that a left locating lift shoulder and a right locating lift shoulder are respectively fixed on the shaft body at the outer sides of the left-handed rotation gear and a right-handed rotation, the outer end surface of the left locating lift shoulder is a left locating surface, the outer end surface of the right locating lift shoulder is a right locating surface, and the left locating surface and the right locating surface are symmetrical by taking the centre line of the shaft body as the center. The distance from the left locating surface to the center line of the left-handed rotation gear is D1, the distance from the right locating surface to the center line of the right-handed rotation gear is D2, and the difference value between the D1 and the D2 is less than or equal to 0.03mm. The error of symmetry between the left locating surface and the right locating surface is less than 0.06mm. Key grooves are formed in the two ends of the shaft body. Screw holes are respectively formed in the two end parts of the shaft body. The herringbone wheel shaft has the advantages of good axial symmetry, little heat treatment deformation, long service life and high reliability.
Description
Technical field
The utility model relates to a kind of herringbone gear shaft, belongs to the herringbone gear shaft technical field.
Background technique
The advantages such as the herringbone gear transmission agree have bearing capacity high, and the work balance is good are used widely as main transmission in the Large-scale High-Pressure water pump system.The high-accuracy herringbone gear axle has strict requirement for the degree of symmetry of herringbone gear, and symmetry error is directly connected to the design effect of herringbone gear, affects life-span and the intensity of herringbone gear.Existing manufacture method has following several: (1) is a kind of is first to process what a rotation direction, then line location processing another one rotation direction; The method precision is low, and efficient is not high; (2) a kind of is parts processing, relocates rear assembling; The method can't adapt to the processing needs of herringbone gear shaft; (3) having a kind of is the roll flute software that utilizes existing herringbone gear again, two rotation direction gears of whole processing herringbone gear; But the method also can't satisfy herringbone gear shaft two between cog spacings greatly and the situation larger with the reference level spacing.In addition, the detection side to, the detection of herringbone gear degree of symmetry often all relies on three-coordinates measuring machine, but when larger, needs large-scale three-coordinates measuring machine when herringbone gear shaft two space widths, equipment investment is larger, also can't satisfy the requirement of mass production simultaneously.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of herringbone gear shaft is provided, and symmetry properties is good, heat treatment deformation is few, the life-span is long, reliability is high.
According to the technological scheme that the utility model provides, described herringbone gear shaft comprises axis body, and at the fixing left-handed gear in the middle part of this axis body and dextrorotation gear, left-handed gear and dextrorotation gear are symmetricly set on the both sides of axis body center line; It is characterized in that: fix respectively left location half the circumference of the sleeve where it joins the shoulder and right location half the circumference of the sleeve where it joins the shoulder on the axis body outside described left-handed gear and dextrorotation gear, the exterior edge face of left location half the circumference of the sleeve where it joins the shoulder is left locating face, the exterior edge face of right location half the circumference of the sleeve where it joins the shoulder is right locating face, and left locating face and right locating face are take the center line of axis body as symmetry center.
The distance of the left-handed gear center line of described left locating face distance is D1, and right locating face is D2 apart from the distance of dextrorotation gear center line, difference≤0.03mm of D1 and D2.
Symmetry error＜the 0.06mm of described left locating face and right locating face.
The two ends of described axis body arrange keyway.
Two end part at described axis body are provided with respectively screw.
Herringbone gear shaft described in the utility model has solved the problem that in the manufacturing of large spacing herringbone gear shaft, the degree of symmetry difficulty is processed, difficulty is measured; Herringbone gear axial symmetry described in the utility model is good, heat treatment deformation is few, the life-span is long, reliability is high.
Description of drawings
Fig. 1 is the structural representation of herringbone gear shaft described in the utility model.
Fig. 2 is herringbone gear shaft degree of symmetry detected state figure described in the utility model.
Fig. 3 is that herringbone gear shaft degree of symmetry described in the utility model is adjusted schematic diagram.
Fig. 4 is the A-A sectional view of Fig. 1.
Fig. 5 is the structural representation of device for detecting symmetry degree described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with concrete accompanying drawing.
As Fig. 1, shown in Figure 4: as described in herringbone gear shaft comprise axis body 1, left-handed gear 2, dextrorotation gear 3, left location half the circumference of the sleeve where it joins the shoulder 4, right location half the circumference of the sleeve where it joins the shoulder 5, left locating face 41, right locating face 51, screw 6, keyway 7, oil sealing shoulder 8 etc.
As Fig. 1, shown in Figure 4, herringbone gear shaft described in the utility model comprises axis body 1, and at the fixing left-handed gear 2 in the middle part of this axis body 1 and dextrorotation gear 3, left-handed gear 2 and dextrorotation gear 3 are symmetricly set on the both sides of axis body 1 center line; Fix respectively left location half the circumference of the sleeve where it joins the shoulder 4 and right location half the circumference of the sleeve where it joins the shoulder 5 on the axis body 1 in described left-handed gear 2 and dextrorotation gear 3 outsides, the exterior edge face of left location half the circumference of the sleeve where it joins the shoulder 4 is left locating face 41, the exterior edge face of right location half the circumference of the sleeve where it joins the shoulder 5 is right locating face 51, left locating face 41 and right locating face 51 be take the center line of axis body 1 as symmetry center, the symmetry error＜0.06mm of left locating face 41 and right locating face 51; The distance of described left locating face 41 left-handed gear 2 center lines of distance is D1, and right locating face 51 is D2 apart from the distance of dextrorotation gear 3 center lines, difference≤0.03mm of D1 and D2;
As shown in Figure 1, the two ends of described axis body 1 arrange keyway 7, are used for connecting with external impetus, and the inboard of keyway 7 arranges oil sealing shoulder 8;
As shown in Figure 4, be provided with respectively screw 6 at the two end part of described axis body 1, this screw 6 is as the lifting tapped hole.
The manufacture method of herringbone gear shaft described in the utility model comprises following process step:
(1) forge: employing hardenability is that the 20CrMnTi alloy material forging of H5 obtains axis body 1, to guarantee high-quality tooth base;
(2) use drilling machine in auger shell hole, the two ends of axis body 6;
(3) rough turn: at lathe get on the bus out cylindrical, left locating face 41 and the right locating face 51 of axis body 1 left location half the circumference of the sleeve where it joins the shoulder 4 and right location half the circumference of the sleeve where it joins the shoulder 5, middle vehicle at axis body 1 goes out two tooth axles, transition position processing transition arc at axis body 1 and each end face, to improve the intensity of axis body 1, prevent from processing and heat treatment process in stress concentrate, affect the operating life of axis body 1;
(4) normalizing: the axis body 1 after rough turn was processed under 930～950 ℃ 3～4 hours, then with the stove air cooling to room temperature; The purpose of normalizing is for refinement material grains tissue;
(5) finish turning: on lathe, axis body 1 is carried out finish turning, left locating face 41 and right locating face 51 keep the machining allowance of 2～3mm, and axis body 1 cylindrical keeps 0.9～1.2mm machining allowance;
(6) warm destressing in: the axis body 1 after finish turning was processed under 430～470 ℃ 2.5～3.5 hours, then with the stove air cooling to room temperature; The effect of middle temperature destressing is further to eliminate machining stress, prepares for final heat treatment, reduces the distortion in the herringbone gear shaft heat treatment process;
(7) outer mill for the first time: on the M1450 external cylindrical grinding machine to axis body 1 on everywhere cylindrical roughly grind, keep 0.5～0.7mm and grind surplus outward, with the distortion of warm destressing in eliminating, the alignment during also for carburizing and quenching provides benchmark;
(8) gear hobbing: respectively to the left-handed gear of processing of the tooth axle on axis body 1 and dextrorotation gear, keep the grinding theeth allowance of 0.4～0.55mm on YM31125 type gear hobbing machine;
(9) carburizing and quenching: at first the axis body 1 after gear hobbing is oozed by force under 915～925 ℃ of conditions, the time is 5.8～6.2 hours, and carbon potential is 1～1.2%; Spread under 915～925 ℃ of conditions, the time is 3.5～4.5 hours again, and carbon potential is 0.74～0.76%; , after 835～845 ℃ axis body 1 is quenched in quenching oil except temperature; Cool to 160～200 ℃ with the furnace and carry out hot alignment, make runout error＜0.25mm; Carry out temper at 160～200 ℃ again, the time is 3.5～4.5 hours;
(10) outer mill for the second time: on the M1450 external cylindrical grinding machine with axis body 1 everywhere peripheral milling to required size;
(11) roll flute: axis body 1 is fixed on NILES800 type gear grinding machine, proofreaies and correct axis body 1 cylindrical, guarantee to beat＜0.015mm; Successively the flank of tooth of left-handed gear 2 and dextrorotation gear 3 is ground to required size;
(12) degree of symmetry detects: as shown in Figure 2, detect the distance B 2 ' of left locating face 41 to the distance B 1 ' of left-handed gear 2 center lines, right locating face 51 to dextrorotation gear 3 center lines; Degree of symmetry detects and adopts device for detecting symmetry degree to detect, and can detect rapidly and accurately symmetry error, has greatly improved detection efficiency, has reduced testing cost;
(13) degree of symmetry adjustment: on lathe, left locating face 41 and right locating face 51 are revised, revising rear left locating face 41 distances to left-handed gear 2 center lines is D1, right locating face 51 to the distance of dextrorotation gear 3 center lines is D2, guarantees difference≤0.03mm of D1 and D2.
As Fig. 2, shown in Figure 5, described degree of symmetry inspection is surveyed device and is comprised crossbeam 10, left positioning plate 11, right positioning plate 12, left support seat 13, right support seat 14, the first chute 15, the second chute 16, the first slide block 17, the second slide block 18, the first locking block 19, the second locking block 20, the first guide column sleeve 21, the second guide column sleeve 22, the first guide pillar 23, the second guide pillar 24, the first test head 25, the second test head 26 etc.
Described device for detecting symmetry degree comprises crossbeam 10, at symmetrical left positioning plate 11 and the right positioning plate 12 installed of the two ends of crossbeam 10 difference, the relative one side of left positioning plate 11 and right positioning plate 12 is respectively the locating face that coordinates with the left locating face 41 of axis body 1 and right locating face 51, the lower end of left positioning plate 1 and right positioning plate 12 is separately positioned on left support seat 13 and right support seat 14, and the lower end surface of left positioning plate 11 and right positioning plate 12 arranges respectively the curve bath that coordinates with axis body 1 outer surface; The first chute 15 and the second chute 16 that relative crossbeam 10 center lines are arranged are set on described crossbeam 10, the first slide block 17 of chute 15 slips relatively is set in the first chute 15, the first slide block 17 is fixing with crossbeam 10 by the first locking block 19 of the first slide block 17 1 sides, the second slide block 18, the second slide blocks 18 that can relative the second chute 16 slide are set fixing with crossbeam 10 by the second locking block 20 of the second slide block 18 1 sides in the second chute 16; Fix respectively the first guide column sleeve 21 and the second guide column sleeve 22 on described the first slide block 17 and the second slide block 18, the first guide pillar 23 and the second guide pillar 24, the first guide pillars 23 and the second guide pillar 24 are set respectively in the first guide column sleeve 21 and the second guide column sleeve 22, and relative the first guide column sleeve 21 and the second guide column sleeve 22 slide up and down respectively; It is spherical shape that the first test head 25 and the second test head 26, the first test heads 25 and the second test head 26 are set respectively in the lower end of described the first guide pillar 23 and the second guide pillar 24.
Described device for detecting symmetry degree is when detecting the degree of symmetry of herringbone gear shaft, first the two ends with herringbone gear shaft to be measured are placed on respectively on left support seat 13 and right support seat 14, then left positioning plate 11 and right positioning plate 12 are placed on respectively on left support seat 13 and right support seat 14, the position of positioning plate 11 left according to herringbone gear axial adjustment and right positioning plate 12 makes left positioning plate 11 and right positioning plate 12 fit with left locating face 41 and the right locating face 51 of herringbone gear shaft respectively; Adjust the position of the first slide block 17, adjust simultaneously the angle of herringbone gear shaft, make the first test head 25 aim at the teeth groove of left-handed gear 2 centerline, after adjusting to the right place, fix the first slide block 17 by the first locking block 19; Adjust the position of the second slide block 18, can not adjust the angle of herringbone gear shaft this moment again, makes the second test head 26 aim at the right side and revolve the teeth groove of gear 3 centerline, after adjusting to the right place, fixes the second slide block 18 by the second locking block 20; Measure the distance between left positioning plate 11 and the first test head 25, right positioning plate 12 and the second test head 26, and calculate left-handed gear 2 on herringbone gear shaft and the degree of symmetry between dextrorotation gear 3.
Claims (5)
1. a herringbone gear shaft, comprise axis body (1), and at the fixing left-handed gear (2) in the middle part of this axis body (1) and dextrorotation gear (3), left-handed gear (2) and dextrorotation gear (3) are symmetricly set on the both sides of axis body (1) center line; It is characterized in that: fix respectively left location half the circumference of the sleeve where it joins the shoulder (4) and right location half the circumference of the sleeve where it joins the shoulder (5) on the axis body (1) outside described left-handed gear (2) and dextrorotation gear (3), the exterior edge face of left location half the circumference of the sleeve where it joins the shoulder (4) is left locating face (41), the exterior edge face of right location half the circumference of the sleeve where it joins the shoulder (5) is right locating face (51), and left locating face (41) and right locating face (51) are take the center line of axis body (1) as symmetry center.
2. herringbone gear shaft as claimed in claim 1, it is characterized in that: the distance of described left locating face (41) distance left-handed gear (2) center line is D1, right locating face (51) is D2 apart from the distance of dextrorotation gear (3) center line, difference≤0.03mm of D1 and D2.
3. herringbone gear shaft as claimed in claim 1, is characterized in that: the symmetry error＜0.06mm of described left locating face (41) and right locating face (51).
4. herringbone gear shaft as claimed in claim 1, it is characterized in that: the two ends of described axis body (1) arrange keyway (7).
5. herringbone gear shaft as claimed in claim 1, is characterized in that: be provided with respectively screw (6) at the two end part of described axis body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220628090 CN202937760U (en) | 2012-11-22 | 2012-11-22 | Herringbone wheel shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220628090 CN202937760U (en) | 2012-11-22 | 2012-11-22 | Herringbone wheel shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937760U true CN202937760U (en) | 2013-05-15 |
Family
ID=48321998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220628090 Expired - Lifetime CN202937760U (en) | 2012-11-22 | 2012-11-22 | Herringbone wheel shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937760U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937173A (en) * | 2012-11-22 | 2013-02-20 | 无锡威孚中意齿轮有限责任公司 | Herringbone gear shaft and production method thereof |
| CN110939715A (en) * | 2019-11-19 | 2020-03-31 | 湖北坚丰科技股份有限公司 | Gear shaft of new energy automobile speed reducer and manufacturing process thereof |
-
2012
- 2012-11-22 CN CN 201220628090 patent/CN202937760U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937173A (en) * | 2012-11-22 | 2013-02-20 | 无锡威孚中意齿轮有限责任公司 | Herringbone gear shaft and production method thereof |
| CN102937173B (en) * | 2012-11-22 | 2015-04-29 | 无锡威孚中意齿轮有限责任公司 | Production method for herringbone gear shaft |
| CN110939715A (en) * | 2019-11-19 | 2020-03-31 | 湖北坚丰科技股份有限公司 | Gear shaft of new energy automobile speed reducer and manufacturing process thereof |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |