CN106438345B

CN106438345B - Modular blade pump

Info

Publication number: CN106438345B
Application number: CN201610794838.1A
Authority: CN
Inventors: 余文凌; 陈兆红
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-25
Filing date: 2016-08-25
Publication date: 2018-11-30
Anticipated expiration: 2036-08-25
Also published as: CN106438345A

Abstract

A kind of modular blade pump, by the pump housing, rotor, blade and pump shaft composition, pump housing inner cavity is equipped with vane pump modular unit, the modular unit is made of pump chamber assembly with rotor assembly, guiding mechanism of the arc triangle constant breadth cam frid as blade is used in structure, and rotor and both side plate are linked to be entirety, therefore, in operation, the end face of blade will not generate high-speed friction with side and generate heat, transported medium will not be made to vaporize, noise and vibration will not be generated because generating tired liquid phenomenon, it is a kind of modular blade pump that can be not only used for conveying oil and can be used for conveying water.This modular blade pump suction capacity is strong, high-efficient, runs smoothly, long service life.Using the module of different in width, the i.e. blade of different in width, different grades of flow can get, improve the generalization degree of pump, when maintenance, only need to change module, it is easy to operate, quick, save production cost.

Description

Modular blade pump

Technical field

The present invention relates to a kind of positive displacement pump, especially modular blades to pump.

Background technique

Currently known traditional blades pump be by with sucking, the pump housing of outlet, biasing rotor, multiple be inserted in rotor Blade and pump shaft composition in radial slot, since structure is simple, compact, suction capacity is strong, and the steady no pulse of liquid stream, efficiency is up to 80% or more, it is used widely as oil pump.But traditional vane pump also has its defect, first is that the outer end face and the pump housing of blade Inner surface and blade two sides and left and right two static side plates all generate high-speed friction, cause to generate heat, in addition make by Pumped (conveying) medium generates vaporization；Second is that the enclosure space surrounded by rotor outer circle, pump housing inner cavity and two blades, volume are being transported Turn during constantly generate variation, when volume from large to small when, be easy to appear tired liquid situation, it is more due to liquid Incoercibility Remaining liquid is forced to squeeze out from gap, to generate noise and vibration；Above-mentioned two critical defect not only makes the efficiency of pump It is decreased obviously, especially blade rubbing generates heat, and medium vaporization makes to pump cisco unity malfunction.So traditional blades pump can only be inadequate Suitable for conveying the good oil product of lubricity, and it can not be suitable for conveying the poor water of lubricity, therefore, vane pump is commonly used for oil Pump, is not used as water pump.

Summary of the invention

It is an object of the invention to：For above-mentioned vane pump there are the shortcomings that, propose a kind of blade end face and side not Can generate frictional heating, will not occur in operation tired liquid, can be not only used for conveying oil and can be used for conveying the modularization of water Vane pump.

In order to achieve the above object, modular blade of the present invention is pumped by the radial direction of the pump housing 1, built-in rotor 2 and rotor 2 The blade 3 of slot slide fit and the pump shaft 4 being keyed with the rotor 2 form, and are characterized in that：1 inner cavity of the pump housing dress There is vane pump modular unit 5, the vane pump modular unit 5 is made of pump chamber assembly 6 and 7 two large divisions of rotor assembly, The pump chamber assembly 6 by before pump chamber to be divided into the upper cut water 8 of low-pressure area and higher-pressure region, lower cut water 9 and is fixedly mounted with the two every Plate 10 is formed with rear bulkhead 11, and the inside of the upper cut water 8 is formed with the arc surface 15 coaxial with rotor 2, the arc surface 15 Radius it is equal with radius of the blade 3 from the radial slot of rotor 2 when overhang maximum value, the width of the upper cut water 8 Corresponding to 60 ° of central angles in 2 axle center of rotor, the inside of the lower cut water 9 is formed with the arc surface 16 with rotor 2 with radius, described The width of lower cut water 9 corresponds to 60 ° of central angles in 2 axle center of rotor, the front baffle 10 and rear bulkhead 11 towards the inside of rotor 2 It is equipped with the arc triangle constant breadth cam frid 12 coaxial with rotor 2, the rotor assembly 7 is by rotor 2 and is packed in described Blade 3 of two side plates 13 and multiple slide fits of 2 two sides of rotor and synchronous rotary in 2 radial slot of rotor is formed, described 3 inner end two sides of blade are formed with coaxial shaft 14, the shaft 14 of the 3 inner end two sides of blade be respectively inserted in the front baffle 10 with In the slot of arc triangle constant breadth cam frid 12 on rear bulkhead 11.

The two sides of the upper cut water 8 and lower cut water 9 in the technology of the present invention solution can be equipped with multiple small balls 17。

The present invention uses modularized design, which is made of pump chamber assembly 6 and 7 two large divisions of rotor assembly. Wherein pump chamber assembly 6 is the stationary part being mounted in the pump housing 1, and rotor assembly 7 is the machinery of pump.

Movement of the blade in the radial slot of rotor 2 is the control by arc triangle constant breadth cam frid 12 in above structure The maximum overhang of system, blade is controlled by the arc surface that radius in arc triangle constant breadth cam slot is R2, and blade is outer at this time It is accurate clearance fit between end face and the arc surface 15 of upper cut water 8, does not generate friction between them；In addition, two side plates 13 are fixedly mounted with rotor 2 and are integrated and synchronous rotary, and rotor 2 is again with 3 synchronous rotary of movable vane piece, therefore, two side plates 13 and blade 3 Basic synchronization rotation, only generates a small amount of relative displacement between the two sides and both side plate of blade 3, does not generate high-speed friction, therefore This will not generate heat.

By 2 external cylindrical surface of rotor, upper cut water 8 arc surface 15 and two blades between the enclosure space that is surrounded of angle During operation, volume be will not be changed, the reason is that the arc surface 15 of upper cut water 8 and 2 external cylindrical surface of rotor are Concentric circles, two interlobate angles are fixed, therefore when the rotation of two blades, the size of closed volume is constant fixed number, Tired liquid phenomenon will not occur.And this two arc surface is decentraction in traditional blades pump, so when the rotation of two blades, volume Occur constantly to change, when volume from large to small when, necessarily lead to tired liquid phenomenon.

The positive effect of the present invention is；

1. the outer end face of blade 3 and two sides will not generate heat in operation because of high-speed friction, will not make to be conveyed Jie Matter vaporization.

2. pump is not generated in operation because of liquid phenomenon, both eliminated noise and vibration further improves efficiency, and It runs smoothly, long service life.

3. the present invention uses modularized design, the module of different in width can get different flows, i.e., a kind of pump of fundamental mode The pump that a variety of different flows can be derived improves the generalization degree of pump, has saved production cost.

4. according to the principle of positive displacement pump, the output pressure of pump is unrelated with flow, related to the power of necessary electromotor, Yi Zhongji Different discharge pressures can be obtained with the motor of different capacity in the pump of type.

Detailed description of the invention

Fig. 1 is the structure chart of the embodiment of the present invention.

Fig. 2 is the A-A cross-sectional view of Fig. 1.

Fig. 3 is the B-B cross-sectional view of Fig. 1.

Fig. 4 is the structure chart of modular unit.

Fig. 5 is the C-C cross-sectional view of Fig. 4.

Fig. 6 is the D-D cross-sectional view of Fig. 4.

Fig. 7 is the structure chart of pump chamber assembly.

Fig. 8 is the E-E cross-sectional view of Fig. 7.

Fig. 9 is the F-F cross-sectional view of Fig. 7.

Figure 10 is the structure chart of rotor assembly.

Figure 11 is the G-G cross-sectional view of Figure 10.

Figure 12 is the H-H cross-sectional view of Figure 10.

Figure 13 is the structure chart that upper and lower cut water side is equipped with small ball 17

Specific embodiment

Fig. 1 is the structure chart of the embodiment of the present invention, and Fig. 2 is the A-A cross-sectional view of Fig. 1, and Fig. 3 is the B-B cross-sectional view of Fig. 1.

It is shown in figure：1 inner cavity of the pump housing with suction inlet and outlet is equipped with vane pump modular unit 5, the modularization Unit 5 is made of pump chamber assembly 6 and 7 two large divisions of rotor assembly, pump chamber assembly 6 by upper cut water 8, lower cut water 9, front baffle 10 with Four parts such as rear bulkhead 11 are formed, they are solidly installed, upper cut water 8 and lower cut water 9 by pump chamber be divided into low-pressure area and The inside of higher-pressure region, front baffle 10 and rear bulkhead 11 towards rotor 2 is equipped with the arc triangle constant breadth cam coaxial with rotor 2 Frid 12；Rotor assembly 7 is made of 2, two side plates 13 of rotor and blade 3, and two side plates 13 and rotor 2 are packed in one It rises, blade 3 is movable in the radial slot of rotor 2, and the two sides of each 3 inner end of blade are formed with coaxial shaft 14, the shaft of the two sides 14 are respectively inserted in the arc triangle constant breadth cam slot on front baffle 10 and rear bulkhead 11, and the movement of blade 3 is by three side of circular arc The control of shape constant breadth cam slot.

When motor drives rotor 2 to rotate by pump shaft 4, each 3 one side of blade is rotated with rotor 2, on one side on three side of circular arc It is reciprocating in the radial slot of rotor 2 under the control of shape constant breadth cam slot, the medium in low-pressure area is transported to higher-pressure region, In cycles.

Fig. 4 is the structure chart of modular unit, and Fig. 5 is the C-C cross-sectional view of Fig. 4, and Fig. 6 is the D-D cross-sectional view of Fig. 4.

Display module unit 5 is made of pump chamber assembly 6 and 7 two parts of rotor assembly in figure, and wherein pump chamber assembly 6 is fixedly mounted with It is stationary part in 1 inner cavity of the pump housing, rotor assembly 7 is to be driven to rotate in pump chamber by pump shaft 4, by blade 3 by low-pressure area Medium is transported to higher-pressure region.

Fig. 7 is the structure chart of pump chamber assembly, and Fig. 8 is the E-E cross-sectional view of Fig. 7, and Fig. 9 is the F-F cross-sectional view of Fig. 7.

It is shown in figure：Four parts such as upper cut water 8, lower cut water 9, front baffle 10 and rear bulkhead 11 pass through locating piece and firm Part is solidly installed, and wherein the inside of front baffle 10 and rear bulkhead 11 towards rotor 2 is equipped with arc triangle constant breadth cam slot Plate 12 is formed with the groove of arc triangle constant breadth cam on this frid 12, and the geometric center of the groove and the axis of rotor are same The advantages of heart, arc triangle constant breadth cam is：The contour line of cam is all surrounded by circular arc, and NC Machining Program is simple； The pressure angle of cam is always zero, and self-locking problem is not present；Driven member velocity variations obey continuous function, no rigid shock, fortune Dynamic characteristic is relatively reasonable.

Figure 10 is the structure chart of rotor assembly, and Figure 11 is the G-G cross-sectional view of Figure 10, and Figure 12 is the H-H cross-sectional view of Figure 10.

It is shown in figure：Multiple uniformly distributed radial slots are formed on rotor 2, equipped with movable blade 3, blade 3 in radial slot Inner end two sides are formed with coaxial shaft 14；Rotor 2 and two side plates 13 are solidly installed and synchronous rotary, therefore work as 4 band of pump shaft When turn 2 rotates, blade 3 and side plate 13 will not generate high-speed friction.

Figure 13 is that the two sides of upper and lower cut water are equipped with the structure chart of small ball 17

In the two sides of upper and lower cut water, the purpose equipped with small ball 17 is when vane pump starts, it is possible to reduce cut water and side Friction between plate 13, after pump works well, side plate can automatically keep pressure balance, keep the gap of two sides equal.

The present invention is positive displacement pump, there is very strong self-priming performance, in addition to it can be used for conveying oil and water, it may also be used for transportation concentration The higher medium of higher or viscosity, or the conveying higher medium of air content；In addition, blade stretches in the rotor, it is not easy by fiber Winding, can be used as sewage pump, for conveying the medium containing a small amount of impurity.

Claims

1. a kind of modular blade pump, by the pump housing (1), built-in rotor (2), the blade (3) with the radial slot slide fit of rotor (2) And pump shaft (4) composition with the rotor (2) key connection, it is characterised in that：The pump housing (1) inner cavity is equipped with blade pump module Change unit (5), the vane pump modular unit (5) is made of pump chamber assembly (6) and rotor assembly (7) two large divisions, described Before pump chamber by being divided into the upper cut water (8) of low-pressure area and higher-pressure region, lower cut water (9) and being fixedly mounted with the two by pump chamber assembly (6) Partition (10) is formed with rear bulkhead (11), is formed with the arc surface (15) coaxial with rotor (2) on the inside of the upper cut water (8), The radius of the arc surface (15) is equal with radius of the blade (3) from the radial slot of rotor (2) when overhang maximum value, The width of the upper cut water (8) corresponds to 60 ° of central angles in rotor (2) axle center, is formed on the inside of the lower cut water (9) and rotor (2) with the arc surface of radius (16), the width of the lower cut water (9) corresponds to 60 ° of central angles in rotor (2) axle center, before described Partition (10) and rear bulkhead (11) are towards being equipped with the arc triangle constant breadth cam coaxial with rotor (2) on the inside of rotor (2) Frid (12), the rotor assembly (7) by rotor (2), with two side plates being packed in the rotor (2) two sides and synchronous rotary (13) and blade (3) of multiple slide fits in rotor (2) radial slot is formed, and blade (3) the inner end two sides are formed with coaxially Shaft (14), the shaft (14) of blade (3) the inner end two sides is respectively inserted on the front baffle (10) and rear bulkhead (11) Arc triangle constant breadth cam frid (12) slot in.

2. modular blade pump according to claim 1, it is characterised in that：The two of the upper cut water (8) and lower cut water (9) Side is equipped with multiple small balls (17).