CN201574911U - Diaphragm driving mechanism of diaphragm hydraulic pump - Google Patents
Diaphragm driving mechanism of diaphragm hydraulic pump Download PDFInfo
- Publication number
- CN201574911U CN201574911U CN2009200483497U CN200920048349U CN201574911U CN 201574911 U CN201574911 U CN 201574911U CN 2009200483497 U CN2009200483497 U CN 2009200483497U CN 200920048349 U CN200920048349 U CN 200920048349U CN 201574911 U CN201574911 U CN 201574911U
- Authority
- CN
- China
- Prior art keywords
- barrier film
- connecting rod
- diaphragm
- hydraulic pump
- driving mechanism
- 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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Abstract
The utility model relates to a diaphragm driving mechanism of a diaphragm hydraulic pump, which comprises an eccentric shaft, a connecting rod and a diaphragm, wherein the eccentric shaft is coaxially connected with the output shaft of a motor, an eccentric wheel is convexly arranged in the middle of the eccentric shaft, the upper end of the connecting rod is hinged on the eccentric wheel, and the diaphragm is mounted on the lower end surface of the connecting rod. The diaphragm driving mechanism of the diaphragm hydraulic pump has the advantages of simple and reasonable structure, convenient part assembly/disassembly, easy maintenance, stable pressure fluctuation during liquid injection and drainage, lower requirement for diaphragm, lower manufacturing cost and wide application range, and is widely applied to various low-flow rate places.
Description
Technical field
The utility model relates to a kind of appurtenances of diaphragm hydraulic pump, specifically is a kind of barrier film driving mechanism of diaphragm hydraulic pump.
Background technique
Diaphragm hydraulic pump is a kind of pump that is used to produce certain pressure and certain flow, and existing diaphragm hydraulic pump is electronic diaphragm hydraulic pump mostly, and it drives one in front and one in back to-and-fro motion of barrier film on the plunger with motor by speed reducer.In pump chamber, two non-return valves up and down are housed, the motion of barrier film causes the change of the volume in the active chamber, forces two alternately opening and closing of non-return valve, thereby liquid is constantly sucked and exports.The diaphragm hydraulic pump of this structure since two non-return valves to replace opening and closing speed slower, cause the fluid pressure fluctuation of discharge bigger, to having relatively high expectations of barrier film, and overall structure is complicated, fabricating cost is higher.In addition, the diaphragm hydraulic pump of this structure is not suitable for the occasion of small flow.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of barrier film driving mechanism of diaphragm hydraulic pump is provided, and the diaphragm hydraulic pump of using this mechanism is simple and reasonable, and is easy to loading and unloading, and fabricating cost is low, applicable to the small flow occasion.
According to the technological scheme that the utility model provides, the barrier film driving mechanism of described diaphragm hydraulic pump comprises eccentric shaft, connecting rod and barrier film, and eccentric shaft connects with the motor output shaft concentric; The eccentric shaft middle part convexes with eccentric wheel, and small end is hinged on the eccentric wheel; Connecting rod is installed barrier film on the lower end surface.
Described small end is provided with a circular hole, is used to be sleeved on the eccentric wheel of eccentric shaft; Connecting rod offers tapped hole on the lower end surface, and tapped hole is equipped with screw rod, and screw rod is used to connect barrier film.
As further improvement of the utility model, described barrier film upper end is the plane, plane central authorities setting-in screw rod; The barrier film lower end is a spherical cambered surface, is sealing surface around the diaphragm edge.
As further improvement of the utility model, between described eccentric wheel and the small end circular hole copper sheathing is housed; Suit setting sleeve between bearings at both ends and the eccentric wheel on the eccentric shaft.
As further improvement of the utility model, described connecting rod adopts aluminium to make; Described eccentric shaft adopts stainless steel material to make; Described barrier film adopts rubber material to make.
The utility model is simple and reasonable, the component easy accessibility, and maintenance is easily; Discharge, when sucking liquid pressure surge steady, lower to the requirement of barrier film, thus fabricating cost is also lower; Can be used for the small flow occasion, application area is more extensive.
Description of drawings
Fig. 1 is the utility model assembling situation schematic representation.
Fig. 2 is the main sectional view of connecting rod among Fig. 1.
Fig. 3 is the side view of Fig. 2.
Fig. 4 is the main sectional view of diaphragm of rubber among Fig. 1.
Fig. 5 is the plan view of Fig. 4.
Fig. 6 is the overall structure schematic representation that rubber diaphrgam pump of the present utility model is housed.
Description of reference numerals: 1-connecting rod, 2-eccentric shaft, 3-eccentric wheel, 4-copper sheathing, 5-screw rod, 6-barrier film, 7-circular hole, 8-tapped hole, 9-sealing surface, 10-motor, 11-motor output shaft, 12-chamber, 13-setting sleeve.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As Fig. 1～shown in Figure 6, the utility model comprises eccentric shaft 2, connecting rod 1 and barrier film 6, and eccentric shaft 2 connects with motor output shaft 11 concentrics, by motor 10 driven rotary; Eccentric shaft 2 middle parts convex with eccentric wheel 3; Connecting rod 1 upper end is provided with a circular hole 7, and connecting rod 1 is sleeved on the eccentric wheel 3 by this circular hole 7, can rotate flexibly; Between described eccentric wheel 3 and the connecting rod 1 upper end circular hole 7 copper sheathing 4 is housed, rotates flexibility to improve; Suit setting sleeve 13 between bearings at both ends and the eccentric wheel 3 on the eccentric shaft 2 is to prevent eccentric wheel 3 slippages; Described connecting rod offers tapped hole 8 on 1 lower end surface, and screw rod 5 is housed in the tapped hole 8; The upper end of described barrier film 6 is planes, the above-mentioned screw rod 5 of plane central authorities' setting-in, and barrier film 6 links together with connecting rod 1; Barrier film 6 lower ends are spherical cambered surfaces, and the recessed spherical cambered surface on the liquid turnover mechanism top of this spherical cambered surface and diaphragm hydraulic pump is formed a chamber 12, is sealing surface 9 around barrier film 6 edges, is used for being connected with the support body of diaphragm hydraulic pump, and described chamber 12 is sealed.
For improving the working life of equipment, the connecting rod 1 in the utility model adopts aluminium to make; Eccentric shaft 2 adopts stainless steel material to make; Barrier film 6 adopts rubber material to make.
During concrete the application, eccentric shaft 2 in the utility model rotates under the drive of motor 10, eccentric wheel 3 on it rotates and drivening rod 1 reciprocal lifting simultaneously, the barrier film 6 that is connected with connecting rod 1 also moves back and forth up and down, and the volume of the chamber 12 that the recessed spherical cambered surface that causes itself and liquid to pass in and out mechanism top is formed also constantly changes.When the volume of chamber 12 reduced gradually, the liquid in the chamber 12 formed malleation, and the liquid in the chamber 12 is forced out by liquid turnover mechanism; When the volume of chamber 12 increased gradually, the liquid in the chamber 12 formed negative pressure, and outside liquid is inhaled in the chamber 12 by liquid turnover mechanism.
Claims (5)
1. the barrier film driving mechanism of diaphragm hydraulic pump comprises eccentric shaft (2), connecting rod (1) and barrier film (6), it is characterized in that: eccentric shaft (2) connects with motor output shaft (11) concentric; Eccentric shaft (2) middle part convexes with eccentric wheel (3), and connecting rod (1) upper end is hinged on the eccentric wheel (3); Connecting rod (1) is installed barrier film (6) on the lower end surface.
2. according to the barrier film driving mechanism of the described diaphragm hydraulic pump of claim 1, its feature also is: described connecting rod (1) upper end is provided with a circular hole (7), is used to be sleeved on the eccentric wheel (3) of eccentric shaft (2); Connecting rod (1) offers tapped hole (8) on the lower end surface, and tapped hole (8) is equipped with screw rod (5), and screw rod (5) is used to connect barrier film (6).
3. according to the barrier film driving mechanism of the described diaphragm hydraulic pump of claim 1, its feature also is: described barrier film (6) upper end is the plane, plane central authorities setting-in screw rod (5); Barrier film (6) lower end is a spherical cambered surface, is sealing surface (9) around barrier film (6) edge.
4. according to the barrier film driving mechanism of the described diaphragm hydraulic pump of claim 1, its feature also is: between described eccentric wheel (3) and connecting rod (1) the upper end circular hole (7) copper sheathing (4) is housed; Eccentric shaft (2) is gone up suit setting sleeve (13) between bearings at both ends and the eccentric wheel (3).
5. according to the barrier film driving mechanism of the described diaphragm hydraulic pump of claim 1, its feature also is: described connecting rod (1) adopts aluminium to make; Described eccentric shaft (2) adopts stainless steel material to make; Described barrier film (6) adopts rubber material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200483497U CN201574911U (en) | 2009-09-07 | 2009-09-07 | Diaphragm driving mechanism of diaphragm hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200483497U CN201574911U (en) | 2009-09-07 | 2009-09-07 | Diaphragm driving mechanism of diaphragm hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201574911U true CN201574911U (en) | 2010-09-08 |
Family
ID=42694784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200483497U Expired - Lifetime CN201574911U (en) | 2009-09-07 | 2009-09-07 | Diaphragm driving mechanism of diaphragm hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201574911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102666A (en) * | 2011-02-15 | 2011-06-22 | 甄立新 | Piston diaphragm device |
-
2009
- 2009-09-07 CN CN2009200483497U patent/CN201574911U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102666A (en) * | 2011-02-15 | 2011-06-22 | 甄立新 | Piston diaphragm device |
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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: 20100908 |