CN201330832Y - Double helical gear transmission mechanism - Google Patents
Double helical gear transmission mechanism Download PDFInfo
- Publication number
- CN201330832Y CN201330832Y CNU2008203039130U CN200820303913U CN201330832Y CN 201330832 Y CN201330832 Y CN 201330832Y CN U2008203039130 U CNU2008203039130 U CN U2008203039130U CN 200820303913 U CN200820303913 U CN 200820303913U CN 201330832 Y CN201330832 Y CN 201330832Y
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- CN
- China
- Prior art keywords
- helical gear
- gear
- single helical
- herringbone
- output shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a double helical gear transmission mechanism which has a characteristic of increasing product quality. The double helical gear transmission mechanism comprises the double helical gear and an output shaft which is connected with the double helical gear through key drive. The double helical gear is composed by splicing and combing a left-hand single helical gear and a right-hand single helical gear. Through splicing and combing the left-hand single helical gear and the right-hand single helical gear for forming the double helical gear, the single piece of left-hand single helical gear and the single piece of right-hand single helical gear can be processed singly in processing. The thickness of single piece of left-hand single helical gear and the thickness of single piece of right helical gear are far smaller than the thickness of whole double helical gear. The core parts of single piece of left-hand single helical gear and single piece of right-hand single helical gear are easily forged to penetration. Simultaneously the heat treatment property of subsequent carburizing and quenching is increased. The quality of double helical gear is increased. The double helical gear transmission mechanism according to the utility model is especially suitable for generalizing and using on the various transmission structures requiring the double helical gear.
Description
Technical field
The utility model relates to the manufacture method of a kind of gear drive and gear, especially relates to a kind of herringbone gear driving mechanism.
Background technique
At present, the gearwheel on the domestic hot-strip finishing mill main gear reducer output shaft is the forged teeth wheel construction of all-in-one-piece hard flank of tooth herringbone profile of tooth.More domestic gear MANUFACTURER have been done certain trial on the welding type hardened face gear, but because drawing crack appears in spoke and the gear ring weld seam of welded gear easily in quenching process, and spoke is out of shape and causes that gear ring is irregular and the accuracy of gear can't be guaranteed.Therefore, the domestic forging gear configurations that mainly adopts all-in-one-piece hard flank of tooth herringbone profile of tooth for the hard flank of tooth herringbone profile of tooth gearwheel on the low-speed heave-load main gear reducer output shaft.All-in-one-piece herringbone gear is owing to increased clearance groov, the gear axial dimension increases, blank is when forging, the core tissue is difficult for forging saturating, easily produce forging defect, also influence next procedure simultaneously: the structure property of the mechanical property of heat treatment-material, the carburizing of tooth portion, quenching, cause the flank of tooth to have crackle to occur, have a strong impact on quality of product, delayed product delivery date.On the other hand, all-in-one-piece herringbone gear is owing to increased clearance groov, and gear weight increases, and process on big equipment, like this heat treatment installation, gear grinding machine equipment is required height, has increased processing cost; Gear weight increases simultaneously, and the rotary inertia of equipment is increased, and electric braking is wayward.
The model utility content
Technical problem to be solved in the utility model provides a kind of herringbone gear driving mechanism that improves the quality of products.
The technological scheme that its technical problem that solves the utility model adopts is: the herringbone gear driving mechanism, comprise herringbone gear and be in transmission connection in the output shaft of herringbone gear that herringbone gear is spliced and combined by left-handed single helical gear and dextrorotation single helical gear and forms by key.
Further be after left-handed single helical gear and dextrorotation single helical gear splice and combine, between left-handed single helical gear and dextrorotation single helical gear, to form annular groove.
Further be, a side that is positioned at herringbone gear on output shaft is disposed with axle head baffle plate, left bearing and left spacer sleeve, the opposite side of herringbone gear is disposed with the gear location shaft shoulder, bearing the location shaft shoulder, right bearing and right spacer sleeve, the axle head baffle plate is fixedly connected on the end of output shaft, and right spacer sleeve is a tight fit on the cylindrical of output shaft.
Further be between the end of axle head baffle plate and output shaft, to be provided with the stop pad.
Further be that described left bearing and right bearing adopt double-row self-aligning roller bearing.
The beneficial effects of the utility model are: by a left-handed single helical gear and a dextrorotation single helical gear are spliced and combined the formation herringbone gear, and man-hour left-handed single helical gear of single-piece and single-piece dextrorotation single helical gear are processed separately adding, for the left-handed single helical gear of single-piece and the dextrorotation single helical gear of single-piece, its thickness is much smaller than the thickness of the herringbone gear of integral body.Then adding man-hour, forge the core of left-handed single helical gear of single-piece and single-piece dextrorotation single helical gear saturating easily, improve the heat treatment performance of follow-up carburizing, quenching simultaneously, improve the quality of herringbone gear greatly, be particluarly suitable for various need promoting the use of on the drive mechanism of employing herringbone gear.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Be labeled as among the figure: left-handed single helical gear 1, dextrorotation single helical gear 2, key 3, output shaft 4, left spacer sleeve 5, axle head baffle plate 6, stop pad 7, annular groove 8, left bearing 9, right bearing 10, the gear location shaft shoulder 11, the bearing location shaft shoulder 12, right spacer sleeve 13.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, herringbone gear driving mechanism of the present utility model comprises herringbone gear and is in transmission connection in the output shaft 4 of herringbone gear by key 3, and herringbone gear is spliced and combined with dextrorotation single helical gear 2 by left-handed single helical gear 1 and forms.Then add man-hour, separate with dextrorotation single helical gear 2 at the left-handed single helical gear 1 of single-piece and to process, because of left-handed single helical gear 1 of single-piece and the thickness of dextrorotation single helical gear 2 much smaller than the herringbone gear that splices and combines, then left-handed single helical gear 1 of single-piece and dextrorotation single helical gear 2 are when blank forging, can be easy to the core of blank is forged thoroughly, improve the interior tissue mechanical property; Simultaneously, after left-handed single helical gear 1 and dextrorotation single helical gear 2 are forged thoroughly, in the carburizing in the manufacture process, the quenching heat treatment, also can avoid forming crackle in the back, can improve the quality of product greatly at the flank of tooth of gear.
In order to reduce to splice and combine the rotary inertia of back herringbone gear, after left-handed single helical gear 1 splices and combines with dextrorotation single helical gear 2, between left-handed single helical gear 1 and dextrorotation single helical gear 2, form annular groove 8.Like this, can alleviate the weight of herringbone gear greatly, thereby reduce the rotary inertia of equipment, electrical control is easily realized; Also reduced the radial load of bearing simultaneously, reduced requirement bearing.
In order to prevent that herringbone gear is assemblied in back play on the axial direction of output shaft 4 on the output shaft 4, a side that is positioned at herringbone gear on output shaft 4 is disposed with axle head baffle plate 6, left bearing 9 and left spacer sleeve 5, the opposite side of herringbone gear is disposed with the gear location shaft shoulder 11, the bearing location shaft shoulder 12, right bearing 9 and right spacer sleeve 13, axle head baffle plate 6 is fixedly connected on the end of output shaft 4, and right spacer sleeve 13 is a tight fit on the cylindrical of output shaft 4.Behind this set-up mode, the herringbone gear that left-handed single helical gear 1 and dextrorotation single helical gear 2 are combined to form is between the left spacer sleeve 5 and the gear location shaft shoulder 11, after axle head baffle plate 6 is fixed on the output shaft 4, left bearing 9 just forms on the axial direction of output shaft 4 with herringbone gear and fixes, and the form that axle head baffle plate 6 is fixedly connected on the output shaft 4 can be to adopt screw to connect; It then is to be fixed with right spacer sleeve 13 by the bearing location shaft shoulder 12 that the right bearing 9 of opposite side is fixed on the axial direction of output shaft 4.In order to prevent the axial float of herringbone gear better, between the end of axle head baffle plate 6 and output shaft 4, be provided with stop pad 7.
Because herringbone gear is when transmission, main bearing radial force, and axial force is less, therefore, described left bearing 9 adopts double-row self-aligning roller bearings with right bearing 10.Double-row self-aligning roller bearing has the advantages that to bear big radial force and less axial force, and after being contained on the deceleration box, double-row self-aligning roller bearing can also be regulated because the machining error of casing causes the two end axles bore misalignment.
Claims (5)
1. herringbone gear driving mechanism comprises herringbone gear and is in transmission connection in the output shaft (4) of herringbone gear by key (3) that it is characterized in that: herringbone gear is spliced and combined by left-handed single helical gear (1) and dextrorotation single helical gear (2) and forms.
2. herringbone gear driving mechanism as claimed in claim 1 is characterized in that: left-handed single helical gear (1) forms annular groove (8) after splicing and combining with dextrorotation single helical gear (2) between left-handed single helical gear (1) and dextrorotation single helical gear (2).
3. herringbone gear driving mechanism as claimed in claim 1 or 2, it is characterized in that: a side that is positioned at herringbone gear on output shaft (4) is disposed with axle head baffle plate (6), left bearing (9) and left spacer sleeve (5), the opposite side of herringbone gear is disposed with the gear location shaft shoulder (11), the bearing location shaft shoulder (12), right bearing (10) and right spacer sleeve (13), axle head baffle plate (6) is fixedly connected on the end of output shaft (4), and right spacer sleeve (13) is a tight fit on the cylindrical of output shaft (4).
4. herringbone gear driving mechanism as claimed in claim 3 is characterized in that: be provided with stop pad (7) between the end of axle head baffle plate (6) and output shaft (4).
5. herringbone gear driving mechanism as claimed in claim 3 is characterized in that: described left bearing (9) adopts double-row self-aligning roller bearing with right bearing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203039130U CN201330832Y (en) | 2008-12-30 | 2008-12-30 | Double helical gear transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203039130U CN201330832Y (en) | 2008-12-30 | 2008-12-30 | Double helical gear transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201330832Y true CN201330832Y (en) | 2009-10-21 |
Family
ID=41224212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008203039130U Expired - Lifetime CN201330832Y (en) | 2008-12-30 | 2008-12-30 | Double helical gear transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201330832Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011072601A1 (en) * | 2009-12-14 | 2011-06-23 | Smart Manufacturing Technology (Shanghai) Ltd. | Geared drive system with load sharing |
| CN103851168A (en) * | 2014-03-11 | 2014-06-11 | 江苏赫夫特齿轮制造有限公司 | Combined herringbone gear structure |
| CN105020338A (en) * | 2015-06-04 | 2015-11-04 | 侯如升 | Double-gear driving mechanism |
| CN106594236A (en) * | 2017-01-23 | 2017-04-26 | 苏州诺纳可电子科技有限公司 | Novel gear structure |
| CN109469708A (en) * | 2018-12-27 | 2019-03-15 | 贺业开 | Hardened gear face double helical spurgear speed reducer |
| CN110206871A (en) * | 2019-06-25 | 2019-09-06 | 南京高精齿轮集团有限公司 | A kind of split type herringbone toothing and speed reducer |
| CN110259913A (en) * | 2018-03-12 | 2019-09-20 | 中国航发商用航空发动机有限责任公司 | Duct-Burning Turbofan, star gear train case and herringbone gear installation |
-
2008
- 2008-12-30 CN CNU2008203039130U patent/CN201330832Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011072601A1 (en) * | 2009-12-14 | 2011-06-23 | Smart Manufacturing Technology (Shanghai) Ltd. | Geared drive system with load sharing |
| CN103851168A (en) * | 2014-03-11 | 2014-06-11 | 江苏赫夫特齿轮制造有限公司 | Combined herringbone gear structure |
| CN105020338A (en) * | 2015-06-04 | 2015-11-04 | 侯如升 | Double-gear driving mechanism |
| CN106594236A (en) * | 2017-01-23 | 2017-04-26 | 苏州诺纳可电子科技有限公司 | Novel gear structure |
| CN110259913A (en) * | 2018-03-12 | 2019-09-20 | 中国航发商用航空发动机有限责任公司 | Duct-Burning Turbofan, star gear train case and herringbone gear installation |
| CN109469708A (en) * | 2018-12-27 | 2019-03-15 | 贺业开 | Hardened gear face double helical spurgear speed reducer |
| CN110206871A (en) * | 2019-06-25 | 2019-09-06 | 南京高精齿轮集团有限公司 | A kind of split type herringbone toothing and speed reducer |
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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: 20091021 |
|
| CX01 | Expiry of patent term |