CN207261243U - A kind of gear set of speciality gear pump - Google Patents
A kind of gear set of speciality gear pump Download PDFInfo
- Publication number
- CN207261243U CN207261243U CN201720829927.5U CN201720829927U CN207261243U CN 207261243 U CN207261243 U CN 207261243U CN 201720829927 U CN201720829927 U CN 201720829927U CN 207261243 U CN207261243 U CN 207261243U
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- CN
- China
- Prior art keywords
- gear
- key teeth
- teeth
- pump
- speciality
- 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
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Abstract
A kind of gear set of speciality gear pump is the utility model is related to, includes the gear set body being arranged in the pump housing, the gear set body includes the first gear and second gear of setting symmetrical above and below；The outer ring of the first gear and second gear by 30 ° angularly annular be connected with corresponding key teeth, the profile of the key teeth is disposed as arcuation, and the profile teeth groove identical with key teeth is both provided between the adjacent key teeth；The tooth of the key teeth is high and the facewidth is arranged to equal proportion；The first gear and second gear are intermeshed by corresponding key teeth and tooth socket fit.The utility model is not only simple in structure, and when manufacture easily verifies, and can effectively solve the problem that liquid reflux problem, so as to lift the work efficiency of the pump housing.
Description
Technical field
Gear pump field is the utility model is related to, refers specifically to a kind of gear set of speciality gear pump.
Background technology
Gear pump is to convey liquid by the swept volume change and movement that are formed between pumping cylinder and meshing gear or make
Supercharging drum pump.Two enclosure spaces are formed by two gears, the pump housing and front and rear covers, when gear rotates, are out of gear
The volume in the space of side becomes larger from small, forms vacuum, draws liquid into, the volume in the space of gear engagement side from diminishing greatly, and
Liquid is squeezed into pipeline.Suction chamber with discharge chamber is separated by the path of contact of two gears.
Common gear set mainly uses involute cylindrical gear, general involute Cylinder Gear inside general gear pump
Take turns that its number of teeth is more, therefore the angle between key teeth is smaller, causes Gear Production mould used when manufacturing in checking procedure
Easily there is error；And since the teeth groove of involute cylindrical gear is usually arranged as trapezoidal shape, and key teeth is then pointed, this is just
During causing gear set engagement in rotation, it could only be realized in a flash when the nib contacts of key teeth are to teeth groove between gear
Totally-enclosed.Once the tip of key teeth departs from teeth groove, then liquid will be back to suction chamber along gap between teeth groove and key teeth, so
The suction chamber suction that may result in the pump housing is reduced, so that the work efficiency drop of the pump housing.
It is that the utility model is ground to design a kind of gear set of speciality gear pump for above-mentioned problem existing in the prior art
The purpose studied carefully.
Utility model content
In view of the above-mentioned problems of the prior art, the utility model lies in that provide a kind of gear set of speciality gear pump,
It can effectively solve the problem that the above-mentioned problems of the prior art.
The technical solution of the utility model is：
A kind of gear set of speciality gear pump, includes the gear set body being arranged in the pump housing, the gear set body
Include the first gear and second gear of setting symmetrical above and below；Press 30 ° etc. in the outer ring of the first gear and second gear
Angle annular is connected with corresponding key teeth, and the profile of the key teeth is disposed as arcuation, and between the adjacent key teeth
It is provided with the profile teeth groove identical with key teeth；The tooth of the key teeth is high and the facewidth is arranged to equal proportion；The first gear and
Two gears are intermeshed by corresponding key teeth and tooth socket fit.
The first gear and second gear are connected with shaft by corresponding bearing fit.
The advantages of the utility model：
The utility model includes first gear and second gear, in use, the key teeth of first gear and second gear and
Teeth groove is intermeshed.On the one hand, since key teeth is angularly set by 30 °, compared with general gear making, by 30 ° of angles
Verification of the mould of setting in manufacture craft is more prone to；On the other hand, the setting at 30 ° of angles is put down between also disclosure satisfy that gear
Overlap coefficient needed for steady engaged transmission.And since the profile of key teeth is arranged to arcuation, and teeth groove is consistent with the profile of key teeth,
Therefore during rotation, the contact of one-point or multi-point can be maintained between key teeth and teeth groove all the time so that first gear with
Second gear both sides can completely cut off, so as to solve the problems, such as liquid reflux, while the suction of pump and work efficiency be obtained
Improve.The utility model is not only simple in structure, and when manufacture easily verifies, and can effectively solve the problem that liquid reflux problem, so that
Lift the work efficiency of the pump housing.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the working state figure of the utility model.
Fig. 3 is the structure diagram of first gear.
Embodiment
In order to facilitate the understanding of those skilled in the art, existing make embodiment combination attached drawing into one the structure of the utility model
Step is described in detail：
With reference to figure 1-3, a kind of gear set of speciality gear pump, includes the gear set body 2 being arranged in the pump housing 1, institute
State first gear 3 and second gear 4 that gear set body 2 includes setting symmetrical above and below；The first gear 3 and second gear
4 outer ring by 30 ° angularly annular be connected with corresponding key teeth 5, the profile of the key teeth 5 is disposed as arcuation, and phase
The profile teeth groove 6 identical with key teeth 5 is both provided between the adjacent key teeth 5；The tooth of the key teeth 5 is high and the facewidth is arranged to
Ratio；The first gear 3 and second gear 4 coordinate intermeshing by corresponding key teeth 5 and teeth groove 6.
The first gear 3 and second gear 4 pass through corresponding bearing（It is not drawn into）It is connected with shaft 7.
The utility model includes first gear 3 and second gear 4, in use, the key of first gear 3 and second gear 4
Tooth 5 and teeth groove 6 are intermeshed.On the one hand, since key teeth 5 is angularly set by 30 °, compared with general gear making,
Verification of the mould set by 30 ° of angles in manufacture craft is more prone to；On the other hand, the setting at 30 ° of angles also disclosure satisfy that tooth
Overlap coefficient between wheel needed for steady engaged transmission.And since the profile of key teeth 5 is arranged to arcuation, and teeth groove 6 and key teeth 5
Profile it is consistent, therefore during rotation, the contact of one-point or multi-point can be maintained between key teeth 5 and teeth groove 6 all the time, is made
Obtaining first gear 3 can completely cut off with 4 both sides of second gear, so as to solve the problems, such as liquid reflux, while cause the suction of pump
It is improved with work efficiency.
The above is only the preferred embodiment of the present invention, it is all done according to present utility model application the scope of the claims it is equal
Deng change and modify, should all belong to the covering scope of the utility model.
Claims (2)
1. a kind of gear set of speciality gear pump, includes the gear set body being arranged in the pump housing, it is characterised in that：The tooth
Wheel group body includes the first gear and second gear of setting symmetrical above and below；The outer ring of the first gear and second gear is equal
By 30 ° angularly annular be connected with corresponding key teeth, the profile of the key teeth is disposed as arcuation, and the adjacent key teeth
Between be both provided with the profile teeth groove identical with key teeth；The tooth of the key teeth is high and the facewidth is arranged to equal proportion；First tooth
Wheel and second gear are intermeshed by corresponding key teeth and tooth socket fit.
A kind of 2. gear set of speciality gear pump according to claim 1, it is characterised in that：The first gear and second
Gear is connected with shaft by corresponding bearing fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720829927.5U CN207261243U (en) | 2017-07-11 | 2017-07-11 | A kind of gear set of speciality gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720829927.5U CN207261243U (en) | 2017-07-11 | 2017-07-11 | A kind of gear set of speciality gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207261243U true CN207261243U (en) | 2018-04-20 |
Family
ID=61926374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720829927.5U Expired - Fee Related CN207261243U (en) | 2017-07-11 | 2017-07-11 | A kind of gear set of speciality gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207261243U (en) |
-
2017
- 2017-07-11 CN CN201720829927.5U patent/CN207261243U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180420 Termination date: 20180711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |