CN202228346U - High-viscosity fluid transmission pump - Google Patents
High-viscosity fluid transmission pump Download PDFInfo
- Publication number
- CN202228346U CN202228346U CN2011203128475U CN201120312847U CN202228346U CN 202228346 U CN202228346 U CN 202228346U CN 2011203128475 U CN2011203128475 U CN 2011203128475U CN 201120312847 U CN201120312847 U CN 201120312847U CN 202228346 U CN202228346 U CN 202228346U
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- CN
- China
- Prior art keywords
- gear
- end cap
- external gear
- internal gear
- bearing
- 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
The utility model discloses a high-viscosity fluid transmission pump which comprises an end cover (1), an inner gear (2), a fixed shaft (4), a pump body (5), an outer gear (7), a right end cover (8), a bracket (12) and a transmission shaft (15). An inner meshed gear pair comprising the inner gear (2) and the outer gear (7) is installed in the pump body (5); the outer gear (7) is used as a driving gear; the inner gear (2) is used as a driven gear; tooth-form curves of the gears adopt circular arcs; and centers of inner and outer circular arcs of a swing link respectively coincide with centers of the inner gear and the outer gear. The high-viscosity fluid transmission pump has the advantages of being high in self-priming capability, high in high-viscosity fluid transmission, stable in transmission, long in service life, low in cost and the like.
Description
Technical field
The utility model relates to field of fluid machinery, is specifically related to a kind of high viscosity fluid transmission pump.
Background technique
Gear pair in the crescent gear pump and the selenodont member between the gear pair have very large influence to the service behaviour of pump.
It is driving wheel that traditional crescent gear pump adopts internal gear; External gear is a follower, and the design of swing link biasing, this design are fit to the fluid that transmission organic acid, animal tallow, rape oil etc. have certain stickiness; But for fluid with high viscosity; Traditional crescent gear pump is because a little less than its suction capacity, it is low the time can efficiency of transmission to occur in transmission, in addition can't proper functioning etc. problem.
The used gear of traditional crescent gear pump, its tooth curve adopts cycloid, straight line and compound curve more.Adopt the gear of these tooth curves when transmission, advantage separately to be arranged, but in transmission, all can produce higher output ripple, the stationarity of influence transmission, the working life of shortening pump.And more than several kinds of tooth curve difficulty of processing big, cost is high.
The model utility content
The purpose of the utility model promptly is to overcome the deficiency of existing technology, and a kind of suitable transmission high viscosity fluid is provided, and cost is low, and output ripple is little, the high viscosity fluid transmission pump that the life-span is long.
The purpose of the utility model realizes through following technological scheme:
A kind of high viscosity fluid transmission pump is characterized in that: the internal gear pair of being made up of internal gear and external gear is installed in the pump housing, and end cap and right end cap are installed in the right and left of the pump housing respectively; Gland is installed in the top of the pump housing, and internal gear connects fixing with end cap through stationary axle and sliding bearing, and transmission shaft passes right end cap; Be connected with external gear through key, bearing and insertion ring are installed between transmission shaft and the right end cap, it is right-hand that the insertion ring gland is installed in right end cap; Support passes transmission shaft; Link to each other with right end cap, between support and the transmission shaft bearing is installed, bearing is fixed by macropore bearing cap that lays respectively at its right and left and aperture bearing cap.
End cap is provided with internal gear stationary axle mounting hole, includes the swing link of global formation with it on the end cap, and the external arc center of said swing link overlaps with the center of end cap, and interior center of arc overlaps with the center of internal gear stationary axle mounting hole.
The tooth curve of internal gear is one section circular arc, and radius is 80-120mm, and the quantity of the internal gear gear teeth is 5-10.
The external gear gear teeth of external gear are arranged on the axial end of external gear; The external gear gear teeth towards inwardly; The tooth curve of external gear is one section circular arc of gripping altogether with the tooth curve of internal gear; Radius is 80-120mm, and the root radius of external gear equals the diameter of external gear, and the quantity of the external gear gear teeth is 8-13.
Can find out through top narration; The utility model has the advantages that: compare with traditional crescent gear pump; It is the design of driving wheel that the utility model adopts external gear, and center of arc overlaps with the center of internal gear and external gear respectively inside and outside the swing link, and better sealing effect can be provided; The suction capacity of pump is strengthened, be fit to transmission high viscosity fluid.The tooth curve of gear adopts circular arc, and the contact ratio of the gear teeth is high during engagement, can significantly reduce output ripple, makes transmission steadily, prolong pump working life, and the processing of circular-arc flank profil is simple, low cost of manufacture.In a word, the described high viscosity fluid of the utility model transmission pump has solved the problem that crescent gear pump can't transmit the high viscosity fluid, have that suction capacity is strong, transmission steadily, the life-span is long and low cost and other advantages.
Description of drawings
Fig. 1 inner gear structure schematic representation
Fig. 2 internal gear A-A is to sectional view
Fig. 3 external gear structural representation
Fig. 4 external gear B-B is to sectional view
Fig. 5 end cover structure schematic representation
Fig. 6 end cap C-C is to sectional view
Fig. 7 high viscosity fluid transmission pump structural representation
Among the figure, 1-end cap, 2-internal gear, 3-sliding bearing, 4-stationary axle, the 5-pump housing; The 6-gland, 7-external gear, 8-right end cap, 9-bearing, 10-insertion ring, 11-insertion ring gland; The 12-support, 13-macropore bearing cap, 14-aperture bearing cap, 15-transmission shaft, 16-bearing; The 17-key, 18-internal gear stationary axle mounting hole, the 19-internal gear gear teeth, the 20-external gear gear teeth, 21-swing link.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further to describe, the protection domain of the utility model is not limited to the following stated.
As shown in Figure 7; A kind of high viscosity fluid transmission pump; Comprise end cap 1, internal gear 2, stationary axle 4, the pump housing 5, external gear 7, right end cap 8, support 12 and transmission shaft 15, the internal gear pair of being made up of internal gear 2 and external gear 7 is installed in the pump housing 5, and end cap 1 and right end cap 8 are installed in the right and left of the pump housing 5 respectively; Swing link 21 on the end cap 1 is divided into low pressure area and zone of high pressure with space in the pump, is respectively applied for the turnover of fluid.Gland 6 is installed in the top of the pump housing 5, and internal gear 2 connects fixing with end cap 1 through stationary axle 4 and sliding bearing 3, and transmission shaft 15 passes right end cap 8, is connected with external gear 7 through key 17, drives external gear 7 and rotates transmission.Bearing 9 and insertion ring 10 are installed between axle 15 and the right end cap 8; It is right-hand that insertion ring gland 11 is installed in right end cap; Support 12 passes transmission shaft 15; Link to each other with right end cap 8, bearing 16 is installed between support 12 and the transmission shaft 15, bearing 16 is fixing with aperture bearing cap 14 by the macropore bearing cap that lays respectively at its right and left 13.
As depicted in figs. 1 and 2, the tooth curve of internal gear 2 is one section circular arc, and radius is 80-120mm, and the quantity of the internal gear gear teeth 19 is 5-10.
Like Fig. 3 and shown in Figure 4; The external gear gear teeth 20 of external gear 7 are arranged on the axial end of external gear 7; The external gear gear teeth 20 towards inwardly, the tooth curve of external gear 7 is one section circular arc of gripping altogether with the tooth curve of internal gear 2, radius is 80-120mm; The root radius of external gear 7 equals the diameter of external gear 7, and the quantity of the external gear gear teeth 20 is 8-13.
Like Fig. 5 and shown in Figure 6; End cap 1 is provided with internal gear stationary axle mounting hole 18; Include the swing link 21 of global formation with it on the end cap, the external arc center of said swing link 21 overlaps with the center of end cap 1, and interior center of arc overlaps with the center of internal gear stationary axle mounting hole 18.
Claims (1)
1. high viscosity fluid transmission pump; It is characterized in that: comprise end cap (1), internal gear (2), stationary axle (4), the pump housing (5), external gear (7), right end cap (8), support (12) and transmission shaft (15); The internal gear pair of being made up of internal gear (2) and external gear (7) is installed in the pump housing (5); End cap (1) and right end cap (8) are installed in the right and left of the pump housing (5) respectively; Gland (6) is installed in the top of the pump housing (5), and internal gear (2) connects fixing through stationary axle (4) and the same end cap of sliding bearing (3) (1), and transmission shaft (15) passes right end cap (8) and is connected with external gear (7) through key (17); Bearing (9) and insertion ring (10) are installed between transmission shaft (15) and the right end cap (8); It is right-hand that insertion ring gland (11) is installed in right end cap, and support (12) passes transmission shaft (15), links to each other with right end cap (8); Between support (12) and the transmission shaft (15) bearing (16) is installed, bearing (16) is fixing by macropore bearing cap (13) that lays respectively at its right and left and aperture bearing cap (14);
End cap (1) is provided with internal gear stationary axle mounting hole (18); Include the swing link of global formation (21) with it on the end cap; The external arc center of said swing link (21) overlaps with the center of end cap (1), and interior center of arc overlaps with the center of internal gear stationary axle mounting hole (18);
The tooth curve of internal gear (2) is one section circular arc, and radius is 80-120mm, and the quantity of the internal gear gear teeth (19) is 5-10;
The external gear gear teeth (20) of external gear (7) are arranged on the axial end of external gear (7); The external gear gear teeth (20) towards inwardly; The tooth curve of external gear (7) is one section circular arc of gripping altogether with the tooth curve of internal gear (2); Radius is 80-120mm, and the root radius of external gear (7) equals the diameter of external gear (7), and the quantity of the external gear gear teeth (20) is 8-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203128475U CN202228346U (en) | 2011-08-25 | 2011-08-25 | High-viscosity fluid transmission pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203128475U CN202228346U (en) | 2011-08-25 | 2011-08-25 | High-viscosity fluid transmission pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228346U true CN202228346U (en) | 2012-05-23 |
Family
ID=46078933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203128475U Expired - Fee Related CN202228346U (en) | 2011-08-25 | 2011-08-25 | High-viscosity fluid transmission pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312832A (en) * | 2011-08-25 | 2012-01-11 | 成都航天烽火精密设备制造有限责任公司 | Transfer pump of high viscosity fluid |
-
2011
- 2011-08-25 CN CN2011203128475U patent/CN202228346U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312832A (en) * | 2011-08-25 | 2012-01-11 | 成都航天烽火精密设备制造有限责任公司 | Transfer pump of high viscosity fluid |
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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: 20120523 Termination date: 20140825 |
|
| EXPY | Termination of patent right or utility model |