CN203130488U - Cam wheel rotor pump - Google Patents
Cam wheel rotor pump Download PDFInfo
- Publication number
- CN203130488U CN203130488U CN 201220723377 CN201220723377U CN203130488U CN 203130488 U CN203130488 U CN 203130488U CN 201220723377 CN201220723377 CN 201220723377 CN 201220723377 U CN201220723377 U CN 201220723377U CN 203130488 U CN203130488 U CN 203130488U
- Authority
- CN
- China
- Prior art keywords
- pump
- rotor
- positioning plate
- casing
- cam wheel
- 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 - Lifetime
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- Rotary Pumps (AREA)
Abstract
The utility model discloses a cam wheel rotor pump which comprises a pump body (1), a box body (2), a pump cover (3), a pair of rotors (4a, 4b), a driving shaft (5), a driven shaft (6), a drive gear (7), a shaft mechanical seal (8) and a bearing device (9). The cam wheel rotor pump is mainly characterized in that a positioning plate (34) is arranged between the pump cover (3) and the rotors (4a, 4b); a seam allowance (35) is formed on the outer side of the positioning plate (34) which is matched with a seam allowance formed correspondingly on the pump cover (3); and the inner side of the positioning plate (34) and the end surfaces of the rotors (4a, 4b) are fit and matched. The cam wheel rotor pump is convenient to assemble, can guarantee rotor axial clearances to be at the best value easily, can be used for improving the pump working efficiency, and is convenient to process and maintain.
Description
Technical field
The utility model relates to a kind of lobed rotor pump, is a kind of lobed rotor pump for industries such as oil, chemical industry, pitch, food, light industrys.
Technical background
The prior art lobed rotor pump mainly is to be made of the pump housing, casing, pump cover, pair of cams rotor, driving shaft, driven shaft, driving gear, shaft mechanical seal, bearing means, the cam follower of a pair of cooperation is installed on the driving shaft and driven shaft in the pump chamber of the pump housing, and with the pump chamber cooperating, in the casing that driving shaft, driven shaft, driving gear, bearing means are installed in the pump housing docks, as shown in Figure 1.The shortcoming less than one of its existence be rotor in the pump chamber of the pump housing fully axially the and radially processing dimension by rotor guarantee clearance fit relationship, since processing go up to produce with tolerance and error, the axial clearance matching relationship of rotor in pump chamber is difficult to guarantee and be adjusted on the optimum value, so meeting directly influence the pump work parameter, influence pump work efficient; The 2nd, medium directly entered in the gear-box easily when shaft mechanical seal leaked, and caused bearing and gear to damage, and reduced the whole service life of pump, and the 3rd, casing heat radiation difficulty influences bearing and service life of gear.
The model utility content
The purpose of this utility model is to improve at above-mentioned the deficiencies in the prior art, provide that a kind of rotor clearance is easy to adjust, shaft sealing leak easily observe, the lobed rotor pump of casing good heat dissipation effect, to improve pump efficiency, be easy for installation and maintenance, improve ability to work and the working life of pump.
The utility model lobed rotor pump, include the pump housing 1, casing 2, pump cover 3, a pair of rotor 4a, 4b, driving shaft 5, driven shaft 6, driving gear 7, shaft mechanical seal 8, bearing means 9, it is characterized in that between pump cover 3 and rotor 4a, 4b, being provided with positioning plate 34, the outside of positioning plate offers that the corresponding seam of offering cooperates on seam 35 and the pump cover 3, the inboard of positioning plate 34 is pasted with rotor 4a, 4b end face and is cooperated, the inboard outer ring surface 36 of positioning plate and pump chamber inner side surface 11 gaps or the transition fit of the pump housing 1; Being provided with seam 15 in the pump housing 1 its right end face is connected with casing 2; Have slotted eye 20 in the side of casing 2; Be distributed with radiating fin 23 at casing 2 outer surfaces.
The utility model is by being provided with positioning plate 34 between pump cover 3 and rotor 4a, 4b, axial and the radial clearance matching relationship of rotor in pump chamber is easy to adjust by positioning plate 34, guarantee that easily this matching gap is on optimum value, improve pump work efficient, and reduced rotor 4a, 4b axial dimension requirement on machining accuracy, be convenient to processing and assembling maintenance.Be provided with seam 15 in the pump housing 1 its right end face and be connected with casing 2, make assembling convenient, be convenient to adjust the axial displacement of driving shaft 5 and driven shaft 6, thereby drive the axial displacement of adjusting rotor 4a, 4b easily, improve assembly precision.Have slotted eye 20 in the side of casing 2; the very first time is observed after can guaranteeing mechanical seal leakage; can guarantee when leakage rate increases simultaneously; medium can flow out from this viewing window; and be unlikely the damage that string causes gear, bearing in the casing; reduce maintenance, improve the working life of pump.Be distributed with radiating fin 23 at casing 2 outer surfaces, improve the heat dissipation potential of casing, and have under the slotted eye 20 ventilation cooperations in the side of casing 2, reduce the bearing working temperature, prevent that effectively bearing temperature is too high, thereby improve working life.
Description of drawings
Fig. 1 is the prior art structural representation.
Fig. 2 is the utility model example structure schematic representation.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the B-B sectional view of Fig. 3.
Embodiment
The utility model lobed rotor pump, include the pump housing 1, casing 2, pump cover 3, a pair of rotor 4a, 4b, driving shaft 5, driven shaft 6, driving gear 7, shaft mechanical seal 8, bearing means 9, it is characterized in that between pump cover 3 and rotor 4a, 4b, being provided with positioning plate 34, the outside of positioning plate offers that the corresponding seam of offering cooperates on seam 35 and the pump cover 3, the inboard of positioning plate 34 is pasted with rotor 4a, 4b end face and is cooperated, the inboard outer ring surface 36 of positioning plate and pump chamber inner side surface 11 gaps or the transition fit of the pump housing 1; Being provided with seam 15 in the pump housing 1 its right end face is connected with casing 2; Front and back sides at casing 2 has slotted eye 20; Be distributed with radiating fin 23 at casing 2 outer surfaces.
Claims (2)
1. lobed rotor pump, include the pump housing (1), casing (2), pump cover (3), a pair of rotor (4a, 4b), driving shaft (5), driven shaft (6), driving gear (7), shaft mechanical seal (8), bearing means (9), it is characterized in that at pump cover (3) and rotor (4a, be provided with positioning plate (34) 4b), the outside of positioning plate offers seam (35) and goes up corresponding seam cooperation of offering with pump cover (3), the inboard of positioning plate (34) and rotor (4a, 4b) end face pastes and cooperates, the inboard outer ring surface (36) of positioning plate and pump chamber inner side surface (11) gap or the transition fit of the pump housing (1).
2. lobed rotor pump according to claim 1 is characterized in that being provided with seam (15) in the pump housing (1) its right end face is connected with casing (2); Have slotted eye (20) in the side of casing (2); Be distributed with radiating fin (23) at casing (2) outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723377 CN203130488U (en) | 2012-12-25 | 2012-12-25 | Cam wheel rotor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723377 CN203130488U (en) | 2012-12-25 | 2012-12-25 | Cam wheel rotor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130488U true CN203130488U (en) | 2013-08-14 |
Family
ID=48938470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220723377 Expired - Lifetime CN203130488U (en) | 2012-12-25 | 2012-12-25 | Cam wheel rotor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130488U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847658A (en) * | 2015-05-06 | 2015-08-19 | 辽宁恒星泵业有限公司 | Cam rotor pump |
| CN115298439A (en) * | 2020-03-31 | 2022-11-04 | 阿法拉伐股份有限公司 | Rotary positive displacement pump |
-
2012
- 2012-12-25 CN CN 201220723377 patent/CN203130488U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847658A (en) * | 2015-05-06 | 2015-08-19 | 辽宁恒星泵业有限公司 | Cam rotor pump |
| CN104847658B (en) * | 2015-05-06 | 2016-09-28 | 辽宁恒星泵业有限公司 | A kind of lobed rotor pump |
| CN115298439A (en) * | 2020-03-31 | 2022-11-04 | 阿法拉伐股份有限公司 | Rotary positive displacement pump |
| CN115298439B (en) * | 2020-03-31 | 2023-10-13 | 阿法拉伐股份有限公司 | Rotary Positive Displacement Pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |