CN203374626U - Eccentric wheel shaft for membrane pump - Google Patents
Eccentric wheel shaft for membrane pump Download PDFInfo
- Publication number
- CN203374626U CN203374626U CN201320478267.2U CN201320478267U CN203374626U CN 203374626 U CN203374626 U CN 203374626U CN 201320478267 U CN201320478267 U CN 201320478267U CN 203374626 U CN203374626 U CN 203374626U
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- China
- Prior art keywords
- eccentric
- eccentric wheel
- rotating shaft
- membrane pump
- wheel shaft
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- 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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- 239000012528 membrane Substances 0.000 title abstract 6
- 238000005266 casting Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000009347 mechanical transmission Effects 0.000 abstract description 3
- 238000005242 forging Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 6
- 238000003754 machining Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 210000000080 chela (arthropods) Anatomy 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model provides an eccentric wheel shaft for a membrane pump, belongs to the field of mechanical transmission and manufacturing, and particularly relates to an eccentric wheel shaft at an end with small piston force lower than 45t and used for the membrane pump. The eccentric wheel shaft for the membrane pump is simple in structure, low in production cost and high in production efficiency. The eccentric wheel shaft for the membrane pump comprises a rotating shaft, and the rotating shaft is provided with two eccentric wheels, wherein a 90-degree angle is formed between the two eccentric wheels. The eccentric wheel shaft for the membrane pump is characterized in that a balance weight is arranged on one side, opposite to the two eccentric wheels, of the rotating shaft, and the rotating shaft, the two eccentric wheels and the balance weight are of an integrally cast forming structure, and the two eccentric wheels are both provided with balance weight holes.
Description
Technical field
The utility model belongs to mechanical transmission and manufactures field, and specifically, the utility model relates to the following power end eccentric shaft of small piston power 45t for a kind of diaphragm pump.
Background technique
Diaphragm pump is the nucleus equipment for long-distance pipe conveying solid liquid media.Its main composition comprises: seven major parts such as power transmission system, power end, fluid end, hydraulic control system, feed pressure bucking-out system, discharging pressure compensating system, automatical control system.
The mechanical transmission mechanism that power end is diaphragm pump, belong to the connecting rod category.In traditional axial region dress, main shaft input end is connected by gear coupling with the speed reducer output shaft during motor reducer section fills, and main shaft is supported by the double-row self-aligning roller bearing of both sides, is positioned at casing; Two eccentric wheels are installed on main shaft, and two eccentric bias are from main shaft to becoming 90 degree phase angles, installing connecting rods on each eccentric wheel; Connecting rod tip is arranged on eccentric wheel by roller bearing, and wrist-pin end of connecting rod is connected by bearing pin with crosshead.Eccentric wheel, connecting rod, bearing pin, crosshead, form two row connecting rods.
Existing eccentric wheel section dress, mainly comprise forging axle 14, connecting sleeve 12, eccentric wheel 11, sell 13, closing the single-piece (seeing Fig. 3, Fig. 4) such as double-screw bolt 15.
The structural feature of eccentric wheel section dress: forging axle 14 forms connecting sleeve sections dress by pin 13 and connecting sleeve 12, and eccentric wheel 11 carries out counterweight by casting and machining hole, then closes double-screw bolt 15 filling to form eccentric wheel section by handle on connecting sleeve 12.Counterweight hole on connecting sleeve 12 and the balancing weight on eccentric wheel 11 affect the counterweight effect after assembling simultaneously, in design process, adjust more loaded down with trivial details; Working surface is more, and requirement on machining accuracy is higher, sells connection and eccentric wheel handle and locates to join work; Matching relationship is more, and assembling difficulty is larger, high cost.
Summary of the invention
The utility model is exactly for the problems referred to above, provides a kind of simple in structure, low production cost, the diaphragm pump eccentric shaft that manufacturing efficiency is high.
For realizing above-mentioned purpose of the present utility model, the utility model adopts following technological scheme, the utility model comprises rotating shaft, be provided with two eccentric wheels that are mutually 90 degree phase angles in rotating shaft, it is characterized in that: a side relative with two eccentric wheels in rotating shaft is provided with balancing weight, and described rotating shaft, two eccentric wheels and balancing weight are integrated the structure of casting; Be provided with the counterweight hole on described two eccentric wheels.
The beneficial effects of the utility model: 1, the utility model simplifies the structure, and by existing many combinations, is reduced to single cast member.
2, the utility model has alleviated weight greatly, is only to have half that eccentric wheel section fills weight now, cancels in addition forging, changes foundry goods into, thereby has reduced cost of production.
3, the utility model has reduced the working surface of a plurality of parts, from technological process, simplifies, and difficulty of processing reduces, thereby has reduced processing cost.
4, the utility model has been cancelled the interior all assembly relations of existing eccentric wheel section's dress, has reduced assembling difficulty, cancels the technological process that manufactures in assembly process, has improved installation time, reduces costs.
5, the utility model passes through to adjust size and the position in balancing weight and counterweight hole, thereby has improved the counterweight precision, has improved the stationarity of diaphragm pump overall operation.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is existing structural representation of taking turns the axial region dress.
Fig. 4 is the B-B sectional view of Fig. 3.
In accompanying drawing 1 for rotating shaft, 2 for balancing weight, 3 for counterweight hole, 4 for eccentric wheel, 11 for existing eccentric wheel, 12 for connecting sleeve, 13 for pin, 14 for forging axle, 15 for closing double-screw bolt.
Embodiment
The utility model comprises rotating shaft 1, be provided with two eccentric wheels 4 that are mutually 90 degree phase angles in rotating shaft 1, it is characterized in that: a side relative with two eccentric wheels 4 in rotating shaft 1 is provided with balancing weight 2, and described rotating shaft 1, two eccentric wheels 4 and balancing weight 2 are integrated the structure of casting; Be provided with counterweight hole 3 on described two eccentric wheels 4.
Described balancing weight 2 is arranged between two eccentric wheels 4.
The 15t power end eccentric shaft of take is example, with the comparison of pretending of existing power end eccentric wheel section.
One, structure relatively: 15t power end eccentric wheel section assembling structure, this structure will be originally by 1 forging axle 14(42CrMo) substance 510kg, 1 connecting sleeve 12 substance (ZG35Cr1Mo), 435 kg, 2 eccentric wheel 11(ZG35Cr1Mo) substance 825kg, 4 pin 13(45) substance 3 kg, 12 are closing double-screw bolt 15(35Cr1Mo) substance 2 kg, gross weight is 2607kg.
15t power end eccentric shaft structure is unit casting eccentric shaft (ZG35Cr1Mo) substance 1280 kg.
In addition, existing eccentric wheel section assembling structure boundary dimension is Φ 1250 * 1575, and the utility model eccentric shaft boundary dimension is Φ 980 * 1495.
Two, cost compare: base price is as shown in the table at present:
| Sequence number | Part | Material | Raw material | Processing charges | |
| 1 | Cast member | ZG35Cr1Mo | 10500 yuan/t | 10000 yuan/ |
|
| 2 | Forge piece | 42CrMo | 13500 yuan/t | 13000 yuan/ |
|
| 3 | Forge piece | 45 | 12000 yuan/t | 13000 yuan/t |
In eccentric wheel section assembling structure: 1) unit/t=13515 yuan of forging axle 14 prices: 0.51t * (13500+13000).
2) unit/t=8917.5 yuan of connecting sleeve 12 prices: 0.435t * (10500+10000).
3) eccentric wheel 11 prices: unit/t=33825 yuan, 0.825t * 2 * (10500+10000).
4) sell unit/t=246 yuan, 13 prices: 0.003t * 4 * (10500+10000).
5) closing double-screw bolt 15 prices: the unit/t=636 unit of 0.002*12 part * (13500+13000).
Amount to: 13515+8917.5+33825+246+636=57139.5 unit.
In eccentric shaft structure:
1) unit/t=26240 yuan of eccentric shaft price: 1.28t * (10500+10000).
Above comparison, can draw and adopt eccentric shaft material and processing cost can save over half.
Actual in buying external coordination financial statistics, in eccentric wheel section dress, because working surface is more, complex structure, actual cost is 18974*2(eccentric wheel 4)+the 14934(connecting sleeve)+10136(forging axle)=63018 yuan, the eccentric shaft actual cost is 35850 yuan.
By practical operation, also draw same conclusions, adopt eccentric shaft material and processing cost can save near half.
Three, manufacturing efficiency relatively: eccentric wheel section dress single-piece is too much, needs 2.7 months used times from the drawing to the finished parts.Eccentric shaft is saved process time, needs can complete in 2 months.
Eccentric wheel section dress, in assembly process, first get all the each part ready, when forging axle 14 is installed with connecting sleeve 12, after needing now forging axle 14 and connecting sleeve 12 to be installed, fixes position, sends into job shop, manufactures pin-and-hole and join tooling pin 13.Assemble half a day pincers worker used time (double), labour cost is 300 yuan.
After machining, two eccentric wheels 11 are mounted on connecting sleeve, then manufacture connecting sleeve 12 and eccentric wheel 11 joint holes.Assembling one day pincers worker used time (double), labour cost is 600 yuan.
Complete to manufacturing assembling from component are complete, need 4-5 days consuming time, take time and effort.
Eccentric shaft of the present utility model is single-piece, machines the rear mounting shop that directly is transported to, and can carry out next flow process assembling.
Comparatively speaking, both reduce assembly cost, improved again efficiency of assembling.
Four, conclusion: by above comparison, can show that the utility model eccentric shaft is from the drawing to production, then assemble to finished parts, cost-saving half, take the 15t power end as example, cost-saved 30,000 yuan, minimizing consuming time months 30 days.
Be understandable that, above about specific descriptions of the present utility model, only for being described, the utility model not is limited to the described technological scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as meet, all within protection domain of the present utility model.
Claims (3)
1. a diaphragm pump eccentric shaft, comprise rotating shaft (1), be provided with two eccentric wheels (4) that are mutually 90 degree phase angles in rotating shaft (1), it is characterized in that: the upper side relative with two eccentric wheels (4) of rotating shaft (1) is provided with balancing weight (2), and described rotating shaft (1), two eccentric wheels (4) and balancing weight (2) are integrated the structure of casting; Be provided with counterweight hole (3) on described two eccentric wheels (4).
2. a kind of diaphragm pump eccentric shaft according to claim 1, it is characterized in that: described balancing weight (2) is arranged between two eccentric wheels (4).
3. a kind of diaphragm pump eccentric shaft according to claim 1 is characterized in that: the counterweight hole (3) on described two eccentric wheels (4) is concentric hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320478267.2U CN203374626U (en) | 2013-08-07 | 2013-08-07 | Eccentric wheel shaft for membrane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320478267.2U CN203374626U (en) | 2013-08-07 | 2013-08-07 | Eccentric wheel shaft for membrane pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374626U true CN203374626U (en) | 2014-01-01 |
Family
ID=49837155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320478267.2U Expired - Fee Related CN203374626U (en) | 2013-08-07 | 2013-08-07 | Eccentric wheel shaft for membrane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398088B (en) * | 2013-08-07 | 2016-04-20 | 中国有色(沈阳)泵业有限公司 | A kind of eccentric wheel shaft for diaphragm pump |
-
2013
- 2013-08-07 CN CN201320478267.2U patent/CN203374626U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398088B (en) * | 2013-08-07 | 2016-04-20 | 中国有色(沈阳)泵业有限公司 | A kind of eccentric wheel shaft for diaphragm pump |
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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: 20140101 Termination date: 20190807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |