CN103244650A - Bevel wheel - Google Patents
Bevel wheel Download PDFInfo
- Publication number
- CN103244650A CN103244650A CN 201210027839 CN201210027839A CN103244650A CN 103244650 A CN103244650 A CN 103244650A CN 201210027839 CN201210027839 CN 201210027839 CN 201210027839 A CN201210027839 A CN 201210027839A CN 103244650 A CN103244650 A CN 103244650A
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- CN
- China
- Prior art keywords
- helical gear
- gap
- helical
- bevel wheel
- eliminating structure
- 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.)
- Pending
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- Gears, Cams (AREA)
- Gear Transmission (AREA)
Abstract
The invention provides a bevel wheel gap eliminating structure capable of eliminating a bevel wheel transmission gap and a bevel wheel containing a gap eliminating mechanism. The bevel wheel gap eliminating structure divides the bevel wheel into two split portions along the cross section of the bevel wheel, elastic components enabling the two portions to be separated along the axial direction are arranged between the two portions at normal state, and the two portions are in force transmission connection in the circumferential direction.
Description
Technical field
The present invention relates to a kind of helical gear, specifically, is the helical gear that can eliminate the gear transmission gap.
Technical background
A kind of helical gear driven load is big, and stable drive is the drive mechanism of using always.But because multiple factors such as the accuracy of manufacturing of gear, mechanical assembly precision, assembly technology requirements, gear transmission unavoidably has drive gap.Drive gap has influenced transmission accuracy, and then can influence manufacturing, machining accuracy.Do not eliminate drive gap effectively to improve the anti-backlash mechanism of transmission accuracy but now also have.
The purpose of this invention is to provide a kind of helical gear gap-eliminating structure of eliminating the helical gear drive gap.
This helical gear gap-eliminating structure is divided into split type two-part with helical gear along the helical gear cross section, makes the elastic element that these two-part separate vertically, these two-part become power transmission in the circumference when being arranged on normality between two-part and connects.
The present invention provides the helical gear that contains above-mentioned anti-backlash mechanism simultaneously.
For the convenience of its working principle is described, we are becoming split type two-part to divide another name first portion, second portion, and the helical teeth in the first portion is called first helical teeth, and the helical teeth on the second portion is called second helical teeth.When the helical gear that contains this crack that disappears and other helical gear (we are referred to as the 3rd helical gear) engagement, because the existence of elastic element makes first and second part be separated vertically, this just cause on first helical teeth and second helical teeth different sides respectively with the 3rd helical gear on different helical teeth sides engagements (that is to say, when the right flank of a helical teeth on the left surface of first helical teeth and the 3rd helical gear contacted, the right flank of second helical teeth then contacted with the left surface of another one helical teeth on the 3rd helical gear; Perhaps, when the left surface of a helical teeth on the right flank of first helical teeth and the 3rd helical gear contacts, the left surface of second helical teeth then contacts with the right flank of another one helical teeth on the 3rd helical gear), so namely eliminated helical teeth on the 3rd helical gear and the drive gap between the helical gear helical teeth of the present invention.Because first portion becomes power transmission in the circumference with second portion and is connected, so first portion and second portion all can transmit moment of torsion respectively.
As improvement, more reliably, can not produce reversing radially when making that first portion, second portion separate vertically, described elastic element is a plurality of, be distributed on helical gear circumferentially.Described elastic element can be spiral cylinder spring.
As improvement, the structure that described power transmission connects is: at least one rotating shaft that is parallel to the helical gear axis is passed in the hole of opening on described two-part simultaneously.In order to make it possible to transmit bigger moment of torsion, best described rotating shaft is a plurality of, is distributed on helical gear circumferential.
Description of drawings
Fig. 1 is the structural representation of helical gear of the present invention and the engagement of other helical gear.
Embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, contain the helical gear 7 of gap-eliminating structure and the 3rd helical gear 3 mesh schematic representations of other normal configuration.Helical gear 7 comprises along the helical gear cross section and becomes split type first portion 1, second portion 2.Helical teeth in the first portion 1 is first helical teeth 4, and the helical teeth on the second portion 2 is second helical teeth 5.Second portion 2 contains wheel hub 8.Circumferential direction along helical gear 7 is evenly equipped with six counterbores 9,10 respectively on first portion 1, second portion 2, the countersink region 11 of counterbore 9 is relative with counterbore 10 countersink region 12.Spiral cylinder compression spring 13 is set in relative countersink region 11,12, and spiral cylinder compression spring makes first portion 1, second portion 2 separate vertically when normality.Six bolts 14 pass counterbore 9, spiral cylinder compression spring 13, counterbore 10 respectively, and the bolt end is screwed with nut 15.Screw bolt and nut restriction first portion and second portion 2 are in axial separable ultimate range.
Circumferential direction along helical gear 7 is evenly equipped with six through holes 19,20 respectively on first portion 1, second portion 2, in six through holes 19, be provided with straight-line rolling element pair, the fixed block 25 of straight-line rolling element pair passes through hole 20 and is connected with second portion, and the moving part 21 of straight-line rolling element pair is arranged in the through hole 19.The moving part 21 of straight-line rolling element pair can move with respect to the fixed block 25 of straight-line rolling element pair on helical gear axial direction.Straight-line rolling element pair belongs to existing apparatus.
When helical gear 7 and 3 engagements of the 3rd helical gear, spiral cylinder compression spring makes first and second part be separated vertically, this just cause on first helical teeth 4 and second helical teeth 5 different sides respectively with the 3rd helical gear on different helical teeth side engagement, that is to say, when the right flank of a helical teeth on the left surface of first helical teeth 4 and the 3rd helical gear contacted, the right flank of second helical teeth 5 then contacted with the left surface of another one helical teeth on the 3rd helical gear; Perhaps, when the left surface of a helical teeth on the right flank of first helical teeth 4 and the 3rd helical gear contacts, the left surface of second helical teeth 5 then contacts with the right flank of another one helical teeth on the 3rd helical gear), so namely eliminated helical teeth 6 on the 3rd helical gear and the drive gap between the helical gear helical teeth of the present invention.
When first portion 1 when the moment of torsion that is subjected to helical gear 3 rotates, drive second portion 2 by the secondary moving part of straight-line rolling element and rotate together.When second portion 2 when the moment of torsion that is subjected to helical gear 3 rotates, drive first portion 1 by the secondary fixed block of straight-line rolling element and rotate together.
Claims (6)
1. a helical gear gap-eliminating structure is characterized in that: helical gear is divided into split type two-part along the helical gear cross section, makes the elastic element that these two-part separate vertically, these two-part become power transmission in the circumference when being arranged on normality between two-part and connect.
2. gap-eliminating structure according to claim 1, it is characterized in that: described elastic element is a plurality of, be distributed on helical gear circumferentially.
3. gap-eliminating structure according to claim 1, it is characterized in that: described elastic element is spiral cylinder spring.
4. gap-eliminating structure according to claim 1 is characterized in that: the structure that described power transmission connects is: at least one rotating shaft that is parallel to the helical gear axis is passed in the hole of opening on described two-part simultaneously.
5. gap-eliminating structure according to claim 4, it is characterized in that: described rotating shaft is a plurality of, be distributed on helical gear circumferentially.
6. helical gear, it is characterized in that: it contains the described gap-eliminating structure of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210027839 CN103244650A (en) | 2012-02-08 | 2012-02-08 | Bevel wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210027839 CN103244650A (en) | 2012-02-08 | 2012-02-08 | Bevel wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103244650A true CN103244650A (en) | 2013-08-14 |
Family
ID=48924391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210027839 Pending CN103244650A (en) | 2012-02-08 | 2012-02-08 | Bevel wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103244650A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817558A (en) * | 2013-11-19 | 2014-05-28 | 一拖(洛阳)开创装备科技有限公司 | Combination machine differential gear anti-backlash transmission structure |
| CN104128835A (en) * | 2014-07-18 | 2014-11-05 | 宁波夏拓机械装备有限公司 | Bevel gear gap eliminating mechanism and gap eliminating method |
| CN106402363A (en) * | 2016-11-10 | 2017-02-15 | 北京特种机械研究所 | Gear transmission return clearance eliminating structure |
-
2012
- 2012-02-08 CN CN 201210027839 patent/CN103244650A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817558A (en) * | 2013-11-19 | 2014-05-28 | 一拖(洛阳)开创装备科技有限公司 | Combination machine differential gear anti-backlash transmission structure |
| CN104128835A (en) * | 2014-07-18 | 2014-11-05 | 宁波夏拓机械装备有限公司 | Bevel gear gap eliminating mechanism and gap eliminating method |
| CN106402363A (en) * | 2016-11-10 | 2017-02-15 | 北京特种机械研究所 | Gear transmission return clearance eliminating structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Zeng Guihua Document name: Notification of Passing Preliminary Examination of the Application for Invention |
|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Zeng Guihua Document name: Notification of Publication of the Application for Invention |
|
| DD01 | Delivery of document by public notice |
Addressee: Zeng Guihua Document name: Notification of before Expiration of Request of Examination as to Substance |
|
| DD01 | Delivery of document by public notice |
Addressee: Zeng Guihua Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130814 |