CN203009770U - Gear - Google Patents
Gear Download PDFInfo
- Publication number
- CN203009770U CN203009770U CN 201320003987 CN201320003987U CN203009770U CN 203009770 U CN203009770 U CN 203009770U CN 201320003987 CN201320003987 CN 201320003987 CN 201320003987 U CN201320003987 U CN 201320003987U CN 203009770 U CN203009770 U CN 203009770U
- Authority
- CN
- China
- Prior art keywords
- gear
- ring body
- gear ring
- assembly department
- circular groove
- 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 - Fee Related
Links
Images
Abstract
The utility model provides a gear which belongs to the technical field of machinery and is used for solving the problems that a gear in the prior art is not stably installed and fixed, poor in meshing precision and the like. The gear comprises a gear ring body, wherein a plurality of outer gear teeth are uniformly arranged on the outer wall of the gear ring body, a cylindrical mounting part is formed on one end face of the gear ring body and axially extends outwards, an annular groove is formed in the external cylindrical surface of the mounting part, is away from the end face of an extension section by 5mm and is 7mm deep, and keyslot teeth are also arranged on the internal cylindrical wall of the gear ring body and axially extend to the internal cylindrical surface of the mounting part. The gear has the advantages of long service life, high meshing accuracy, reliability in operation and high transmission efficiency.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of gear.
Background technique
Along with the development of science and technology and the raising of people's living standard, automobile has been come into huge numbers of families, becomes the topmost traffic tool of people's go off daily.Each automobile all needs to load a speed changer, changes the size of moment of torsion on the size of automobile driving speed and automobile driving wheel in a big way by speed changer.Speed changer acts on huge for an automobile, and the different gear pair of many group velocity ratios is arranged in gearbox, and the gear shift behavior during automobile running namely makes gear pair work different in gearbox by operating mechanism.As when the low speed, allow the large gear pair work of velocity ratio, and when high speed, allow the little gear pair work of velocity ratio.In order to mesh smoothly, must guarantee that each gear that is meshed is fixed, engagement is accurate between the shift process middle gear.Yet existing gear causes it to be short of to some extent on the stability that installation is fixed in order to satisfy its requirement of strength, cause gear after work a period of time, produce loosening dislocation, make engagement difficulty between gear, the smoothness of gear shift operation also has been subject to very large impact naturally.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of fixing more stable gear of installing, and this gear can guarantee still to mesh precisely in long working load situation, reliable operation.
The purpose of this utility model can realize by following technical proposal: a kind of gear, comprise that outer wall all has the gear ring body of some outer gear teeth, it is characterized in that, has axial outward extending tubular assembly department on an end face of gear ring body, offer circular groove on the external cylindrical surface of described assembly department, described circular groove is 5mm apart from the extension end face, the degree of depth of this circular groove is 7mm, also be provided with the keyway tooth on the inner cylindrical wall of gear ring body, this keyway tooth extends axially to the assembly department inner cylindrical surface.
Splined shaft passes the gear ring body, and the keyway tooth on the inner cylindrical wall of gear ring body is meshed with splined shaft, and both are linked mutually.Have axial outward extending tubular assembly department on an end face due to the gear ring body, can increase the tightness that coordinates of gear and splined shaft, improve the smoothness in the gear operation process, thereby make the gear engagement precisely, transmission efficiency improves.Simultaneously, offer circular groove on the external cylindrical surface due to assembly department, at gear fixedly the time, compare the conventional gears that circular groove is not set, the setting of circular groove can be carried out certain connecting and fixing to gear, prevents the gear axial float, makes gear fixation, reliable operation.
In above-mentioned gear, the width of described circular groove is 6mm～8mm.Be preferably 7mm.
In above-mentioned gear, the extending end end face outer edge right angle chamfering of described assembly department.The advantage of this design be carry out gear fixedly the time, be unlikely to be stuck, make gear easy for installation.
In above-mentioned gear, the outer gear teeth one end towards assembly department on described gear ring body is arc surface, and the radius of arc of this arc surface is 14mm, and the other end of these outer gear teeth is the right angle chamfering.
In above-mentioned gear, the outer diameter of described gear ring body is 87mm.
Compared with prior art, this gear has the following advantages:
1, this gear is owing to offering circular groove on the external cylindrical surface of its assembly department, therefore guaranteeing that gear has under the prerequisite of requirement of strength preferably, and gear is installed fixing more stable, makes gear have the accuracy of mesh preferably.
2, this gear also have advantages of long service life, engagement precisely, reliable operation, transmission efficiency be high.
Description of drawings
Fig. 1 is perspective view of the present utility model.
Fig. 2 is sectional structure schematic diagram of the present utility model.
Fig. 3 is the enlarged view at A place in Fig. 2.
In figure, 1, the gear ring body; 2, the outer gear teeth; 3, assembly department; 4, circular groove; 5, keyway tooth; 6, right angle chamfering; 7, arc surface.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As depicted in figs. 1 and 2, this gear comprises that outer wall all has the gear ring body 1 of some outer gear teeth 2, has axial outward extending tubular assembly department 3 on an end face of gear ring body 1, offer circular groove 4 on the external cylindrical surface of assembly department 3, at gear fixedly the time, the setting of circular groove 4 can make gear fixing more firm, guarantees that working gear is stable.This circular groove 4 is 5mm apart from the extension end face, and the degree of depth of circular groove 4 is 7mm, also is provided with keyway tooth 5 on the inner cylindrical wall of gear ring body 1, and this keyway tooth 5 extends axially to assembly department 3 inner cylindrical surfaces.Keyway tooth 5 is meshed with splined shaft, and gear and splined shaft can be linked mutually.
As preferably, as shown in Figure 2, the width of circular groove 4 is 6mm～8mm, is preferably 7mm.End face outer edge right angle, the extension chamfering 6 of assembly department 3.As shown in Figure 3, the outer gear teeth 2 one ends towards assembly department 3 on gear ring body 1 are arc surface 7, and the radius of arc of this arc surface 7 is 14mm, and the other end of these outer gear teeth 2 is right angle chamfering 6.
The structure of this gear can be used in 300 gear models.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more used the terms such as gear ring body 1, the outer gear teeth 2, assembly department 3, circular groove 4, keyway tooth 5, right angle chamfering 6, arc surface 7, do not get rid of the possibility of using other term.Using these terms is only in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (5)
1. gear, comprise that outer wall all has the gear ring body (1) of some outer gear teeth (2), it is characterized in that, has axial outward extending tubular assembly department (3) on an end face of gear ring body (1), offer circular groove (4) on the external cylindrical surface of described assembly department (3), described circular groove (4) is 5mm apart from the extension end face, the degree of depth of this circular groove (4) is 7mm, also be provided with keyway tooth (5) on the inner cylindrical wall of gear ring body (1), this keyway tooth (5) extends axially to assembly department (3) inner cylindrical surface.
2. gear according to claim 1, is characterized in that, the width of described circular groove (4) is 6mm～8mm.
3. gear according to claim 1, is characterized in that, the extending end end face outer edge right angle chamfering (6) of described assembly department (3).
4. according to claim 1 and 2 or 3 described gears, it is characterized in that, the upper outer gear teeth (2) one ends towards assembly department (3) of described gear ring body (1) are arc surface (7), and the radius of arc of this arc surface (7) is 14mm, and the other end of these outer gear teeth (2) is right angle chamfering (6).
5. according to claim 1 and 2 or 3 described gears, is characterized in that, the outer diameter of described gear ring body (1) is 87mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320003987 CN203009770U (en) | 2013-01-04 | 2013-01-04 | Gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320003987 CN203009770U (en) | 2013-01-04 | 2013-01-04 | Gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009770U true CN203009770U (en) | 2013-06-19 |
Family
ID=48601367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320003987 Expired - Fee Related CN203009770U (en) | 2013-01-04 | 2013-01-04 | Gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009770U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967922A (en) * | 2014-06-03 | 2014-08-06 | 济钢集团有限公司 | Assembled gear shaft |
| CN105909762A (en) * | 2016-05-17 | 2016-08-31 | 苏州威富达精密机械制造有限公司 | Gearwheel for transmission of crane |
| CN109667910A (en) * | 2019-02-21 | 2019-04-23 | 浙江万里扬股份有限公司 | Drive mechanism and speed changer |
| CN114128426A (en) * | 2021-11-06 | 2022-03-04 | 曾约举 | Automatic planting machine for mountainous region |
-
2013
- 2013-01-04 CN CN 201320003987 patent/CN203009770U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967922A (en) * | 2014-06-03 | 2014-08-06 | 济钢集团有限公司 | Assembled gear shaft |
| CN105909762A (en) * | 2016-05-17 | 2016-08-31 | 苏州威富达精密机械制造有限公司 | Gearwheel for transmission of crane |
| CN109667910A (en) * | 2019-02-21 | 2019-04-23 | 浙江万里扬股份有限公司 | Drive mechanism and speed changer |
| CN114128426A (en) * | 2021-11-06 | 2022-03-04 | 曾约举 | Automatic planting machine for mountainous region |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203009770U (en) | Gear | |
| CN206072245U (en) | For the firm wheel of harmonic speed reducer, harmonic speed reducer and robot | |
| CN204186924U (en) | Output shaft of gear-box | |
| CN204267659U (en) | gearbox low gear driven gear | |
| CN204267670U (en) | A kind of bevel gear | |
| CN204186778U (en) | Gearbox fusiformis gearshift jack shaft | |
| CN202001602U (en) | First gear forward and reverse rotating device of overrunning clutch gear-changing motor of motor vehicle | |
| CN203730696U (en) | Meshing gear of transmission of tractor | |
| CN204186936U (en) | Gearbox driving gear anti-out of supply | |
| CN203836153U (en) | Spiral reduction box | |
| CN105443724A (en) | Zero-backlash low-noise transmission gear | |
| CN204186933U (en) | Gearbox driven gear anti-out of supply | |
| CN210715822U (en) | Novel gear | |
| CN103671613A (en) | Multi-conical-surface synchronizer | |
| CN208565494U (en) | Gear | |
| CN205190677U (en) | Zero back clearance low noise drive gear | |
| CN204186775U (en) | Gearbox second axle | |
| CN204755838U (en) | Planetary reducer's ring gear structure | |
| CN205298461U (en) | Gearbox arc tooth bevel gear axle | |
| CN206017656U (en) | A kind of gear positioning structure of gear pair | |
| CN106090187A (en) | The high-accuracy Rigid Gear of Harmonic Reducer of robot | |
| CN212028495U (en) | Planet carrier | |
| CN204739190U (en) | High capacity harmonic speed reducer machine | |
| CN208778639U (en) | Hydraulic clutch reverse gear | |
| CN202691000U (en) | Planetary carrier for output end of speed reducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20150104 |
|
| EXPY | Termination of patent right or utility model |