CN206972866U - A kind of hollow ring gear - Google Patents
A kind of hollow ring gear Download PDFInfo
- Publication number
- CN206972866U CN206972866U CN201720811850.9U CN201720811850U CN206972866U CN 206972866 U CN206972866 U CN 206972866U CN 201720811850 U CN201720811850 U CN 201720811850U CN 206972866 U CN206972866 U CN 206972866U
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- Prior art keywords
- ring gear
- ring body
- ring
- cavity
- central shaft
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Abstract
The utility model provides a kind of hollow ring gear, including ring body, double wedge of the annular outboard of the ring body formed with multiple cloth even centered on the central shaft of the ring body, the inside of the ring body has cavity, and the annular inboard of the ring body has the opening connected with the cavity.Cavity is set by the body interior in ring gear, save the material required for ring gear, stock utilization is of a relatively high and production cost is relatively low, the blank of ring gear is obtained by using the mode of casting simultaneously, and blank forms hollow structure by core, it effectively prevent the casting that traditional ring gear casting easily occurs and shrink or cast deformation, product fraction defective is relatively low, mechanical property is relatively preferable, in addition it is also relatively small to cast required feeding mouth, it helps improve stock utilization.
Description
Technical field
A kind of mechanical transmissioning piece is the utility model is related to, especially a kind of hollow ring gear.
Background technology
Ring gear is also referred to as spur gear, helical gear or sprocket wheel according to the difference of its tooth form, is a kind of common mechanical transmissioning piece,
Extensively using with all kinds of plant equipment.In traditional mode of production, the mode of ring gear generally use forging molding is produced, and is obtained
Ring gear be usually solid ring gear, stock utilization is relatively low, and the flank of ring gear easily bursts apart in forging process, product
Fraction defective is of a relatively high.
There are Some Enterprises to produce ring gear by the way of casting, the ring gear obtained is also solid ring gear, is equally deposited
Stock utilization is relatively low the problem of, and the ring gear that this production technology obtains, easily there is casting and shrink or deformation, production
Product fraction defective is also of a relatively high, while stomata inside it inevitably be present, and mechanical property is relatively poor.
In addition, Ye You enterprises directly machine acquisition ring gear using numerical control machining center, but this production technology obtains
Ring gear be equally solid construction, and the production time of single ring gear is relatively long, and production cost is of a relatively high.
In view of this, the applicant conducts in-depth research to the structure and its production technology of ring gear, there is this case production then
It is raw.
Utility model content
The purpose of this utility model is in the of a relatively high and production cost in a kind of stock utilization of offer is relatively low
Empty ring gear.
To achieve these goals, the utility model adopts the following technical scheme that：
A kind of hollow ring gear, including ring body, the annular outboard of the ring body is formed with multiple with the annular
The double wedge of even cloth centered on the central shaft of body, the inside of the ring body have cavity, and the annular of the ring body
Inner side has the opening connected with the cavity.
As a kind of improvement of the present utility model, the ring body is provided with multiple with institute in the opening position of the opening
State the support column of even cloth centered on the central shaft of ring body.
As a kind of improvement of the present utility model, perforation is offered respectively on each support column, in each perforation
Central shaft of the mandrel respectively with the ring body is arranged parallel to.
As a kind of improvement of the present utility model, the ring body is chromium nickel-molybdenum alloy body.
As a kind of improvement of the present utility model, the ring body is more than the annular in the wall thickness of the tooth positions
The wall thickness of body position between the two neighboring double wedge.
Using above-mentioned technical proposal, the utility model has the advantages that：
1st, cavity is set by the body interior in ring gear, saves the material required for ring gear, stock utilization is relative
Higher and production cost is relatively low.
2nd, by using chromium nickel-molybdenum alloy, it is favorably improved the mechanical property of ring gear.
Brief description of the drawings
Fig. 1 is the structural representation of the hollow ring gear of the utility model；
Fig. 2 is the cutting structural representation of the hollow ring gear of the utility model.
Indicated in figure corresponding as follows：
10- ring bodies；11- double wedges；
12- cavitys；13- is open；
14- support columns；15- perforates.
Embodiment
The utility model is described further with specific embodiment below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, the hollow ring gear that the present embodiment provides, including ring body 10, preferably chromium nickel-molybdenum alloy
Body, to ensure that ring body 10 has preferable intensity and anti-wear performance.The annular outboard of the ring body 10 is formed with more
The double wedge 11 of individual cloth even centered on the central shaft of ring body 10, double wedge 11 can be straight-tooth, helical teeth, sprocket or other tooth forms
Double wedge, selected according to being actually needed.It should be noted that in the present embodiment, the annular outboard of ring body 10 is
Side of the finger ring shape body 10 away from central shaft, corresponding opposite side are the annular inboard of ring body 10.
The inside of ring body 10 has cavity 12, and on the radial section of ring body 10, cavity 12 is in T shape.Ring
The annular inboard of shape body 10 has the opening 13 connected with cavity 12, it is preferred that in the present embodiment, ring body 10 is being opened
Mouthfuls 13 opening position is provided with the support column 14 of multiple cloth even centered on the central shaft of ring body 10, each support column 14 all with
The integrally connected of ring body 10, and opening 13 is divided into multiple oral areas by these support columns 14.Meanwhile on each support column 14 respectively
Perforation 15 is offered, i.e. perforation 15 has multiple, and respectively central shaft of the central shaft of perforation 15 respectively with ring body 10 is parallel to each other
Arrangement.
In addition, in the present embodiment, wall thickness of the ring body 10 in the position of double wedge 11 is more than ring body 10 in phase
The wall thickness of position between adjacent two double wedges, it is ensured that the position of double wedge 11 is not easy to crack, improves the service life of ring gear.
The present embodiment additionally provides a kind of production technology of hollow ring gear, and the production technology can be used for production the present embodiment to carry
The hollow ring gear supplied.The production technology comprises the following steps：
S1：Casting, using chromium nickel-molybdenum alloy as raw material, in Casting Equipment casting obtain blank, blank in a ring and
Its inside has cavity, and the cavity is realized by setting core in casting mould.The annular outboard of blank forms multiple
The double wedge of even cloth centered on the central shaft of blank, the tooth form of double wedge can be set according to being actually needed.The annular inboard of this blank
Formed with the opening connected with cavity, core can be poured out from the opening after being so molded.In addition, the opening position of opening forms
The support column of even cloth centered on multiple central shafts by ring body, the side that support column is used to be located at blank double wedge both sides are entered
Row support, while the ring gear after shaping can be avoided to be deformed.
S2：Hole machined, perforation is processed on the support columns using punching or rig, obtains hollow ring gear, the perforation
Central shaft of the central shaft respectively with ring body be arranged parallel to.
S3, heat treatment, the hollow ring gear for completing hole machined is heat-treated, because the ring gear of the present embodiment is hollow
Structure, intermediate frequency heat treatment can be used to replace high frequency heat treatment used by the ring gear with traditional solid structure, not only more saved
Can, and the antitorque and compressive property of hollow ring gear can be effectively improved.
The utility model is described in detail above in conjunction with specific embodiment, but embodiment of the present utility model
It is not limited in above-mentioned embodiment, those skilled in the art can make various changes according to prior art to the utility model
Shape, other alloy materials are such as selected to replace the chromium nickel-molybdenum alloy in above-described embodiment, these belong to of the present utility model
Protection domain.
Claims (5)
1. a kind of hollow ring gear, including ring body, it is characterised in that the annular outboard of the ring body formed with it is multiple with
The double wedge of even cloth centered on the central shaft of the ring body, the inside of the ring body has cavity, and the annular is originally
The annular inboard of body has the opening connected with the cavity.
2. hollow ring gear as claimed in claim 1, it is characterised in that the ring body is set in the opening position of the opening
There is the support column of multiple cloth even centered on the central shaft of the ring body.
3. hollow ring gear as claimed in claim 2, it is characterised in that offer perforation, each institute on each support column respectively
Central shaft of the central shaft of perforation respectively with the ring body is stated to be arranged parallel to.
4. the hollow ring gear as described in any claim in claim 1-3, it is characterised in that the ring body is chromium nickel
Molybdenum alloy body.
5. the hollow ring gear as described in any claim in claim 1-3, it is characterised in that the ring body is described
The wall thickness of tooth positions is more than the wall thickness of ring body position between the two neighboring double wedge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720811850.9U CN206972866U (en) | 2017-07-06 | 2017-07-06 | A kind of hollow ring gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720811850.9U CN206972866U (en) | 2017-07-06 | 2017-07-06 | A kind of hollow ring gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206972866U true CN206972866U (en) | 2018-02-06 |
Family
ID=61407221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720811850.9U Active CN206972866U (en) | 2017-07-06 | 2017-07-06 | A kind of hollow ring gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206972866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387724A (en) * | 2017-07-06 | 2017-11-24 | 福建泉海工贸投资集团有限公司 | A kind of hollow ring gear and its production technology |
-
2017
- 2017-07-06 CN CN201720811850.9U patent/CN206972866U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387724A (en) * | 2017-07-06 | 2017-11-24 | 福建泉海工贸投资集团有限公司 | A kind of hollow ring gear and its production technology |
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