CN2536807Y

CN2536807Y - Rotor radial reciprocating pump without valves

Info

Publication number: CN2536807Y
Application number: CN 01266490
Authority: CN
Inventors: 余文凌
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-11-09
Filing date: 2001-11-09
Publication date: 2003-02-19
Anticipated expiration: 2011-11-09

Abstract

The utility model relates to a valveless rotary radial direction reciprocating pump, comprising a pump body (2) with a cylindrical intracavity which is divided into a suction cavity and an exhaust cavity by two partition tongues, a cylindrical rotary liquor cylinder body (4) which can rotate in the cylindrical intracavity of the pump body, a piston (5) which can shift in the radial direction cylindrical hole of the liquor cylinder body, a pump shaft (8) arranged in the shaft hole of the liquor cylinder body, a reciprocating mechanism enabling the piston to shift, a pump cover (3) and a shaft gland (7). The utility model has the advantages of providing three eccentric reciprocating mechanisms arranged on the pump cover, removing the valve structure, avoiding the lagging of the valve and the influence of the impurity on the performance of the pump, simplifying the structure, keeping good self suction of the traditional pump, achieving mixed transportation of gas, liquid and sand, transporting suspended substance, fibers and viscous liquid and adding the new function of bidirectional liquid supply while the motor is in positive and inverse rotation.

Description

Valveless rotator type radial reciprocating pump

(1) technical field

The utility model relates to a kind of liquid pump, and especially reciprocating volumetric pump belongs to the pump valve technical field.

(2) background technique

At present, known electric reciprocating pump, all reciprocating by reduction gearing mechanism drive crank-connecting rod or eccentric wheel driven plunger usually by motor, and by means of sucking one-way valve and discharging one-way valve generation hydraulic pressure and current.Above-mentioned existing electric reciprocating pump is all because the restriction of the retardation phenomenon of valve can't improve reciprocal time; In addition, being transferred medium contains impurity and also influences the valve seal reliability; And have that complex structure, volume are big, Heavy Weight, cost height, shortcoming that can only unidirectional liquor charging.

(3) summary of the invention

The purpose of this utility model is: the problem at above-mentioned existing electric reciprocating pump exists, a kind of valveless rotator type radial reciprocating pump is proposed, and cancelled valve arrangement, got rid of the retardation phenomenon of valve, can improve the reciprocal time of pump; And eliminated, thereby designs simplification, volume-diminished, weight saving, cost are reduced because of impurity influences the valve seal reliability and then influences the shortcoming of pump performance.

In order to achieve the above object, the utility model proposes a kind of valveless rotator type radial reciprocating pump, it is by having the garden cylindrical inner chamber and the inner chamber runner being separated into the pump housing (2) of suction chamber and discharge side by two cut waters, can in the cylindrical inner chamber of pump housing garden, rotate and have the rotator type liquid cylinder (4) of the garden cylindricality profile that matches with pump housing garden cylindrical inner chamber, can radially make the piston or the piston assembly (5) of displacement at liquid cylinder in the garden post hole, be installed in the pump shaft (8) in the liquid cylinder axis hole, make piston produce the reciprocating mechanism of displacement, pump cover (3) and axle envelope (7) are formed, and its special way is: on pump cover (3) eccentric reciprocating mechanism is housed.

Eccentric reciprocating mechanism described in the technical solutions of the utility model can be the bearing pin (9) that is contained in pump cover (3) eccentric opening, and its end is made tablet, is inserted in the corresponding groove of piston (5) waist.

Eccentric reciprocating mechanism described in the technical solutions of the utility model also can be the step axle (13) that is contained in pump cover (3) eccentric opening, square or the rectangular slide block (12) that can rotate freely is housed on step axle one end, and slide block is embedded in the corresponding rectangular slot of piston (5) waist.

Eccentric reciprocating mechanism described in the technical solutions of the utility model can also be the eccentric shaft (14) that is contained in pump cover (3) eccentric opening, and the axle that turns on the eccentric shaft (14) is inserted in the post hole, the corresponding garden of piston waist.

Above-mentioned eccentric shaft (14) can be made up of eccentric bushing (17) and bearing pin (16), and bearing pin (16) is installed in the eccentric opening of eccentric bushing (17).

Described piston (5) in the valveless rotator type radial reciprocating pump in the above-mentioned various technological scheme can be that plunger adds barrier film.

Because valveless rotator type radial reciprocating pump of the present utility model has been cancelled the valve arrangement of conventional reciprocating pump, also rotation synchronously of rotator type liquid cylinder during the pump shaft rotation, make piston reciprocating while rotating with the rotator type liquid cylinder by eccentric reciprocating mechanism, the twice throw of eccentric is the running length of reciprocating motion of the pistons; Piston at the upper half of each rotation from suction chamber inspiration liquid and at lower half to the discharge side drain.New structure has been got rid of the retardation phenomenon of valve, can improve the reciprocal time of pump, and has eliminated because of impurity and influence the valve seal reliability and then influence the shortcoming of pump performance; Flow increase, designs simplification, volume-diminished, weight saving, cost reduce, efficient improves thereby make; Except that having kept the good self-priming performance of conventional reciprocating pump, can also reach gas, liquid, husky mixed defeated, also can carry suspended matter, fibre object and viscosity body at night; And new function that can two-way liquor charging when having increased motor positive and inverse.

(4) description of drawings

Fig. 1 is the eccentric pin shaft structure sectional view of installing in the embodiment

Fig. 2 is the A-A sectional view among Fig. 1.

Fig. 3 is the B-B sectional view among Fig. 1.

Fig. 4 is the sectional view that the eccentric step axle of installing (13) adds slide block (12) among the embodiment.

Fig. 5 is the A-A sectional view among Fig. 4.

Fig. 6 is the B-B sectional view among Fig. 4.

Fig. 7 is the eccentric shaft embodiment sectional view in the embodiment.

Fig. 8 is the structural drawing of eccentric bushing among Fig. 7 (15).

Fig. 9 is the structural drawing of eccentric shaft among Fig. 7 (14).

Figure 10 adds the sectional view that garden pin (16) replaces eccentric shaft (14) with eccentric wheel (17).

Figure 11 is the A-A sectional drawing among Figure 10.

Figure 12 is the structural drawing of the eccentric bushing (18) among Figure 10.

Figure 13 is the vertical pump embodiment sectional view that adopts the bearing pin eccentric stiffener.

Figure 14 adopts barrier film (24) to add the sectional view of plunger among the embodiment.

Figure 15 is the A-A sectional view among Figure 14.

(5) embodiment

Now specified as follows in conjunction with the accompanying drawings:

Fig. 1 is the eccentric pin shaft structure of installing in the embodiment, in pump cover (3) eccentric opening end cap (11) is housed, be equipped with in end cap (11) endoporus that a self-lubricating property is good, wearing and tearing back removable sliding bearing (10), one end of the bearing pin (9) that can rotate freely in sliding bearing (10) is made tablet, be inserted in the corresponding groove of piston (5) waist, and in groove, be free to slide, it is good in the post hole, radially garden of rotator type liquid cylinder (4) self-lubricating property to be housed also, wearing and tearing back removable cylinder sleeve (6), the wherein displacement freely of piston (5).Fig. 2 is the A-A sectional drawing, and Fig. 3 is the B-B sectional drawing.

Fig. 4 is eccentric step axle of installing (13) and cover square slider (12) embodiment thereon in the embodiment, be fixed on the step axle (13) in the pump cover (3), the relative rotor center in step axis center is the pump shaft center, one throw of eccentric is arranged, the square slider (12) that can rotate freely is housed on step axle one end, and slide block is embedded in the corresponding square groove of piston (5) waist and is free to slide in groove.Fig. 5 is the A-A sectional drawing, and Fig. 6 is the B-B sectional drawing.

Fig. 7 is the eccentric shaft embodiment in the embodiment, the eccentric shaft (14) that is contained in the pump cover 3 and can rotates freely, eccentric shaft (14) rotates in eccentric bushing (15), the rotating center of eccentric bushing is the pump shaft center with respect to rotor center, one throw of eccentric is arranged, and the axle that turns on the eccentric shaft is inserted in the hole, corresponding garden, piston 5 middle parts.Fig. 8 is the structural drawing of eccentric bushing (15), and Fig. 9 is the structural drawing of eccentric shaft (14).

Figure 10 is that eccentric wheel in the embodiment (17) adds the embodiment that garden pin (16) replaces eccentric shaft (14), an eccentric bushing (18) is housed in the pump cover (3), the eccentric wheel (17) that can rotate freely is housed in the eccentric bushing (18), the rotating center of eccentric bushing is that the pump shaft center has a throw of eccentric with respect to rotor center, garden pin 16 is inserted in the eccentric opening of eccentric wheel (17), and the other end is inserted in the hole, the corresponding garden of piston waist.Figure 11 is the A-A sectional drawing, and Figure 12 is the structural drawing of eccentric bushing (18)

Figure 13 is the vertical pump embodiment who adopts the eccentric stiffener of bearing pin (9), by motor (1), the pump housing (2), pump cover (3), to change in formula liquid cylinder (4), piston or piston assembly (5), fluid cylinder cover (6), mechanical seal (7), pump shaft be that motor projecting shaft (8), bearing pin (9), axle sleeve (10), eccentric gland (11), base (19), steel ball (20) and link span (22) are formed, the axial force of steel ball (20) bear rotor formula liquid cylinder (4) wherein.

Figure 14 is that valveless rotator type radial reciprocating pump adopts barrier film (24) to add the embodiment of plunger, and barrier film (24) is fixed in the radial hole of rotator type liquid cylinder with union (screwed)bonnet (UB (26), and is connected with plunger by pressing plate (25) with screw; Present embodiment has also adopted the less full polytetrafluoroethylene dynamic seal (7) of axial dimension, and compresses with gland (23); Skeleton axle envelope (27) among the embodiment and the barrier film (24) on the plunger can guarantee that all the kinetic friction pairs in the liquid cylinder operate under the situation of sufficient lubrication; Because dynamic seal (7) has one-way, so present embodiment can only unidirectional liquor charging.Figure 15 is the A-A sectional view.

Claims

1, a kind of valveless rotator type radial reciprocating pump, it is by having the garden cylindrical inner chamber and the inner chamber runner being separated into the pump housing (2) of suction chamber and discharge side by two cut waters, can in the cylindrical inner chamber of pump housing garden, rotate and have the rotator type liquid cylinder (4) of the garden cylindricality profile that matches with pump housing garden cylindrical inner chamber, can radially make the piston or the piston assembly (5) of displacement at liquid cylinder in the garden post hole, be installed in the pump shaft (8) in the liquid cylinder axis hole, reciprocating mechanism, pump cover (3) and axle envelope (7) are formed, and it is characterized in that: on pump cover (3) eccentric reciprocating mechanism is housed.

2, valveless rotator type radial reciprocating pump according to claim 1, it is characterized in that: described eccentric reciprocating mechanism is mounted in the bearing pin (9) in pump cover (3) eccentric opening, and its end is made tablet, is inserted in the corresponding translot of piston (5) waist.

3, valveless rotator type radial reciprocating pump according to claim 1, it is characterized in that: described eccentric reciprocating mechanism is the step axle (13) that is contained in pump cover (3) eccentric opening, square or the rectangular slide block (12) that can rotate freely is housed on step axle one end, and slide block is embedded in the corresponding groove of piston (5) waist.

4, valveless rotator type radial reciprocating pump according to claim 1 is characterized in that: described eccentric reciprocating mechanism is the eccentric shaft (14) that is contained in the pump cover eccentric opening, and the axle that turns on the eccentric shaft (14) is inserted in the post hole, the corresponding garden of piston waist.

5, valveless rotator type radial reciprocating pump according to claim 4 is characterized in that: described eccentric shaft (14) can be made up of eccentric bushing (17) and bearing pin (16), and bearing pin (16) is installed in the eccentric opening of eccentric bushing (17).

6, according to claim 1 or 2 or 3 or 4 or 5 described valveless rotator type radial reciprocating pumps, it is characterized in that: described piston can be that plunger adds barrier film.