CN210769239U

CN210769239U - Diaphragm pump capable of efficiently transmitting power

Info

Publication number: CN210769239U
Application number: CN201921701645.2U
Authority: CN
Inventors: 张瑾璟; 吴兵
Original assignee: Kamoer Fluid Technology Shanghai Co Ltd
Current assignee: Kamoer Fluid Technology Shanghai Co Ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-06-16
Anticipated expiration: 2029-10-12

Abstract

The utility model overcomes the defects of the prior art, provides a diaphragm pump capable of efficiently transmitting power, controls the axial clearance of the motor through the spring, buffers the axial float impact force when the pump works, the pump runs more stably without abnormal noise, and realizes the continuous work of the diaphragm pump, and the steel ball is arranged between the roller pin and the eccentric wheel, thereby greatly reducing the friction contact area and greatly improving the wear resistance; the pump body is a shell body with an opening at one end, the eccentric wheel is sleeved on a power output shaft of the motor, the impeller is obliquely arranged at the end part of the eccentric wheel through a roller pin, a ball is movably arranged between the end part of the roller pin and the bottom of a roller pin mounting hole corresponding to the eccentric wheel, a one-way valve is arranged between the valve lower plate and the valve upper plate corresponding to each diaphragm, the air inlet is communicated with a cavity between the valve lower plate and the valve upper plate, and the air outlet is communicated with the cavity between the valve lower plate and the diaphragm plate through a connecting part between the valve lower plate and the.

Description

Diaphragm pump capable of efficiently transmitting power

Technical Field

The utility model relates to a diaphragm pump of high-efficient transmission power of ability belongs to diaphragm pump technical field.

Background

Present diaphragm pump is the interval nature action generally, because the motor has the axial clearance, and the motor during operation produces the axial float, and following technical problem can appear in this kind of float:

1. the axial movement causes the pump to work unstably, and abnormal noise is generated;

2. the axial movement accelerates the abrasion of a transmission part and a motor bearing of the pump, thereby influencing the service life of the pump;

3. axial play is unstable and pump performance parameters become unreliable.

In addition, in the conventional transmission power transmission mode, the friction resistance between the impeller and the eccentric wheel is large, and the following technical defects can be caused:

1. the frictional resistance consumes the output power of the motor, so that the performance of the pump is reduced;

2. the eccentric is gradually worn, reducing the pump performance, resulting in pump failure and damage;

3. the friction generates heat, so that the eccentric wheel is deformed and the pump is damaged.

And the intermittent operation of the pump also influences the use range of the pump.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes prior art exists not enough, provides a diaphragm pump of high-efficient transmission power of ability, controls the axial clearance of motor through the spring, and the axial float impact force of buffer pump during operation, the pump operation is more stable, does not have unusual noise, has realized the continuous operation of diaphragm pump moreover to be equipped with the steel ball between kingpin and eccentric wheel, the frictional contact area that significantly reduces, abrasion resistance obtains very big promotion.

In order to solve the technical problem, the utility model discloses a technical scheme be: a diaphragm pump capable of efficiently transmitting power comprises a motor, a pump body, an eccentric wheel, an impeller, a diaphragm plate, a diaphragm, a one-way valve, a lower valve plate and an upper valve plate, wherein the pump body is a shell body with an opening at one end;

the motor is arranged at the opposite end part of the opening end of the pump body, the power output shaft of the motor extends into the pump body, the eccentric wheel is sleeved on the power output shaft of the motor, the impeller is obliquely arranged at the end part of the eccentric wheel through a roller pin, the axial included angle between the impeller and the eccentric wheel is 20-70 degrees, balls are movably arranged between the end part of the roller pin and the bottom of a roller pin mounting hole corresponding to the eccentric wheel, the balls enable friction between the roller pin and the eccentric wheel to be changed from sliding friction to rolling friction, the diaphragms are arranged on the diaphragm plates in a matching manner, one ends of the diaphragms penetrate through the diaphragm plates to be connected with the impeller together, the other ends of the diaphragms are arranged on the lower valve plates in a matching manner, a one-way valve is arranged between the lower valve plate and the upper valve plate corresponding to each diaphragm, and the air inlet end of the one-way valve is, the air outlet end of the one-way valve penetrates through the valve lower plate and is arranged on the diaphragm in a matched mode, the valve upper plate is provided with an air inlet and an air outlet respectively, the air inlet is communicated with a cavity between the valve lower plate and the valve upper plate, and the air outlet is communicated with the cavity between the valve lower plate and the diaphragm plate through a connecting portion between the valve lower plate and the valve upper plate.

Preferably, a bearing is arranged at a position where a power output shaft of the motor penetrates through the end part of the pump body, a spring is sleeved on the power output shaft of the motor between the eccentric wheel and the bearing, and the spring is used for preventing the eccentric wheel from axially moving.

Preferably, the structure of the diaphragm is: the membrane comprises a membrane plate, membrane sleeves and membrane rods, wherein the three membrane sleeves are distributed on the membrane plate in a circumferential array manner and are of a bowl-shaped structure, the opening parts of the membrane sleeves are buckled on the flange of the lower valve plate in a matched manner, the air outlet ends of the one-way valves are arranged in the membrane sleeves in a matched manner, when the membrane sleeves suck air, the opening parts of the membrane sleeves and the flange of the lower valve plate are sealed, and when the membrane sleeves exhaust air, the opening parts of the membrane sleeves and the flange of the lower valve plate are extruded and deformed to lose the seal; the one end of membrane pole is connected in the bowl form bottom of membrane cover, the other end of membrane pole corresponds and connects on the impeller, the membrane pole is used for extrudeing the membrane cover.

Preferably, a sealing gasket is arranged between the valve lower plate and the valve upper plate, and a vent hole is reserved at the air inlet end of the sealing gasket, which corresponds to the one-way valve.

Preferably, the check valve is an umbrella-nail-shaped check valve, a straight rod end of the umbrella-nail-shaped check valve is abutted to the valve upper plate, and an umbrella end of the umbrella-nail-shaped check valve is arranged in the membrane sleeve in a matched mode.

Compared with the prior art, the utility model beneficial effect who has is: the utility model discloses a suit spring comes the axial clearance of control motor on the motor power output shaft between eccentric wheel and bearing, the axial float impact force of buffer pump during operation, the pump operation is more stable, does not have unusual noise, three diaphragm membrane cover is work in turn, make the diaphragm pump realize continuous operation, and be equipped with the steel ball between the tip of kingpin and eccentric wheel, the greatly reduced kingpin tip is to the frictional contact area of eccentric wheel, make the very big promotion of the wearability of eccentric wheel.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is an explosion diagram of the present invention.

Fig. 2 is a schematic structural diagram of the middle diaphragm of the present invention.

Fig. 3 is an explosion diagram of the position of the ball in the present invention.

Fig. 4 is a sectional view of the ball position in the present invention.

Fig. 5 is an exploded view of the spring position in the present invention.

Fig. 6 is an installation schematic diagram of the spring position in the present invention.

In the figure: 1 is a motor, 2 is a pump body, 3 is an eccentric wheel, 4 is an impeller, 5 is a diaphragm plate, 6 is a diaphragm, 61 is a diaphragm plate, 62 is a diaphragm sleeve, 63 is a diaphragm rod, 7 is a one-way valve, 8 is a valve lower plate, 9 is a valve upper plate, 10 is a spring, 11 is a roller pin, 12 is a sealing gasket, and 13 is a ball.

Detailed Description

As shown in fig. 1 to 6, the utility model relates to a diaphragm pump capable of efficiently transmitting power, which comprises a motor 1, a pump body 2, an eccentric wheel 3, an impeller 4, a diaphragm plate 5, a diaphragm 6, a one-way valve 7, a valve lower plate 8 and a valve upper plate 9, wherein the pump body 2 is a shell-shaped body with an opening at one end, the eccentric wheel 3, the impeller 4, the diaphragm plate 5, the diaphragm 6 and the one-way valve 7 are all positioned in the shell of the pump body 2, the valve lower plate 8 is arranged at the opening end of the pump body 2, and the valve upper plate 9 is arranged on the valve lower plate 8 in a matching manner and fixes the valve lower plate 8 on the pump body 2;

the motor 1 is arranged at the opposite end part of the opening end of the pump body 2, the power output shaft of the motor 1 extends into the pump body 2, the eccentric wheel 3 is sleeved on the power output shaft of the motor 1, the impeller 4 is obliquely arranged at the end part of the eccentric wheel 3 through a roller pin 11, the axial included angle between the impeller 4 and the eccentric wheel 3 is 20-70 degrees, a ball 13 is movably arranged between the end part of the roller pin 11 and the bottom of a roller pin mounting hole corresponding to the eccentric wheel 3, the ball 13 enables the friction between the roller pin 11 and the eccentric wheel 3 to be changed from sliding friction to rolling friction, a plurality of diaphragms 6 are arranged on a diaphragm plate 5 in a matching way, one end of each diaphragm 6 penetrates through the diaphragm plate 5 to be connected with the impeller 4, the other end of each diaphragm 6 is arranged on a lower valve plate 8 in a matching way, and a one-way valve 7 is arranged between the lower valve plate 8 and an, the air inlet end of the one-way valve 7 is communicated with a chamber between the lower valve plate 8 and the upper valve plate 9, the air outlet end of the one-way valve 7 penetrates through the lower valve plate 8 and is arranged on the diaphragm 6 in a matched mode, the upper valve plate 9 is provided with an air inlet and an air outlet respectively, the air inlet is communicated with the chamber between the lower valve plate 8 and the upper valve plate 9, and the air outlet is communicated with the chamber between the lower valve plate 8 and the diaphragm plate 5 through a connecting portion between the lower valve plate 8 and the upper valve plate 9.

Furthermore, a bearing is arranged at the penetrating position of the power output shaft of the motor 1 and the end part of the pump body 2, a spring 10 is sleeved on the power output shaft of the motor 1 between the eccentric wheel 3 and the bearing, and the spring 10 is used for preventing the eccentric wheel 3 from axially moving.

Further, the structure of the diaphragm 6 is: the air exhaust valve comprises a membrane plate 61, membrane sleeves 62 and membrane rods 63, wherein the three membrane sleeves 62 are distributed on the membrane plate 61 in a circumferential array mode, the membrane sleeves 62 are of a bowl-shaped structure, opening parts of the membrane sleeves 62 are buckled on flanges of a valve lower plate 8 in a matching mode, an air outlet end of a one-way valve 7 is arranged in the membrane sleeves 62 in a matching mode, when the membrane sleeves 62 suck air, the opening parts of the membrane sleeves 62 and the flanges of the valve lower plate 8 are sealed, and when the membrane sleeves 62 exhaust air, the opening parts of the membrane sleeves 62 and the flanges of the valve lower plate 8 are extruded and deformed to lose the sealing; one end of the membrane rod 63 is connected to the bowl-shaped bottom of the membrane sleeve 62, the other end of the membrane rod 63 is correspondingly connected to the impeller 4, and the membrane rod 63 is used for extruding the membrane sleeve 62.

Furthermore, a sealing gasket 12 is arranged between the valve lower plate 8 and the valve upper plate 9, and a vent hole is reserved at the air inlet end of the sealing gasket 12 corresponding to the one-way valve 7.

Further, the check valve 7 is an umbrella-nail-shaped check valve, the straight rod end of the umbrella-nail-shaped check valve is abutted against the valve upper plate 9, and the umbrella end of the umbrella-nail-shaped check valve is arranged in the membrane sleeve 62 in a matching manner.

The utility model discloses well kingpin one end uses the button head to be equipped with the steel ball between kingpin and eccentric wheel, the very big promotion of abrasive resistance simultaneously of the frictional contact area that significantly reduces.

The utility model discloses install the spring between eccentric wheel and motor, come the axial clearance of control motor, the axial float impact force of buffer pump during operation through the spring. The pump is more stable in operation, abnormal noise is avoided, abrasion of a transmission mechanism in the pump is improved, the service life of a product is prolonged, and performance parameters of the pump are more stable.

The utility model discloses well spring just can overlap in the epaxial of motor, the lower extreme of spring and the inner circle contact of motor bearing, the upper end and the eccentric wheel contact of spring. The spring needs to be pre-stressed before use, the pre-stress being slightly greater than the maximum output pressure of the pump. When the pump is running, the spring rotates along with the eccentric wheel.

The utility model discloses a theory of operation: the motor drives the eccentric wheel to rotate, the impeller is obliquely installed on the eccentric wheel, when the eccentric wheel rotates, the impeller is periodically thrown along with the eccentric wheel, the membrane rods connected to the impeller periodically extrude the membrane sleeves, the three membrane rods alternately work, so that one of the three membrane sleeves is sucked or exhausted at every moment, and the continuous work of the membrane pump is realized.

The utility model discloses all be connected with direct quick-operation joint on the air inlet of valve upper plate and gas outlet.

The basic principle and the main characteristics of the utility model and the advantages of the utility model have been shown and described above, and the utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of the description with the drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt rivet among the prior art, welding, and machinery, part and equipment all adopt prior art, conventional model, and conventional connection mode in the prior art is adopted in addition to circuit connection, and the details are not repeated here.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The diaphragm pump capable of efficiently transmitting power is characterized by comprising a motor (1), a pump body (2), an eccentric wheel (3), an impeller (4), a diaphragm plate (5), a diaphragm (6), a one-way valve (7), a lower valve plate (8) and an upper valve plate (9), wherein the pump body (2) is a shell body with one open end, the eccentric wheel (3), the impeller (4), the diaphragm plate (5), the diaphragm (6) and the one-way valve (7) are all positioned in the shell of the pump body (2), the lower valve plate (8) is arranged at the open end of the pump body (2), the upper valve plate (9) is arranged on the lower valve plate (8) in a matched manner, and the lower valve plate (8) is fixed on the pump body (2);

the motor (1) is arranged at the opposite end part of the opening end of the pump body (2), the power output shaft of the motor (1) extends into the pump body (2), the eccentric wheel (3) is sleeved on the power output shaft of the motor (1), the impeller (4) is obliquely arranged at the end part of the eccentric wheel (3) through a roller pin (11), the axial included angle between the impeller (4) and the eccentric wheel (3) is 20-70 degrees, balls (13) are movably arranged between the end part of the roller pin (11) and the bottom of a roller pin mounting hole corresponding to the eccentric wheel (3), the balls (13) change the friction between the roller pin (11) and the eccentric wheel (3) from sliding friction to rolling friction, the diaphragms (6) are arranged on the diaphragm plate (5) in a matching manner, and one ends of the diaphragms (6) penetrate through the diaphragm plate (5) and are connected with the impeller (4), the diaphragm is characterized in that the other end of the diaphragm (6) is arranged on the lower valve plate (8) in a matched mode, a one-way valve (7) is arranged between the lower valve plate (8) and the upper valve plate (9) corresponding to each diaphragm (6), the air inlet end of each one-way valve (7) is communicated with a chamber between the lower valve plate (8) and the upper valve plate (9), the air outlet end of each one-way valve (7) penetrates through the lower valve plate (8) and is arranged on the diaphragm (6) in a matched mode, the upper valve plate (9) is respectively provided with an air inlet and an air outlet, the air inlet is communicated with the chamber between the lower valve plate (8) and the upper valve plate (9), and the air outlet is communicated with the chamber between the lower valve plate (8) and the diaphragm plate (5) through a connecting portion between the lower valve plate (8) and the upper valve plate (.

2. The diaphragm pump capable of efficiently transmitting power according to claim 1, wherein a bearing is arranged at a position where a power output shaft of the motor (1) penetrates through an end portion of the pump body (2), a spring (10) is sleeved on the power output shaft of the motor (1) between the eccentric wheel (3) and the bearing, and the spring (10) is used for preventing the eccentric wheel (3) from axially moving.

3. A membrane pump for efficient power transmission according to claim 1, characterized in that the membrane (6) is constructed as follows: the air exhaust valve comprises a membrane plate (61), membrane sleeves (62) and membrane rods (63), wherein the three membrane sleeves (62) are distributed on the membrane plate (61) in a circumferential array manner, the membrane sleeves (62) are of a bowl-shaped structure, opening parts of the membrane sleeves (62) are buckled on flanges of a valve lower plate (8) in a matching manner, an air outlet end of a one-way valve (7) is arranged in the membrane sleeves (62) in a matching manner, when the membrane sleeves (62) suck air, the opening parts of the membrane sleeves (62) are sealed with the flanges of the valve lower plate (8), and when the membrane sleeves (62) exhaust air, the opening parts of the membrane sleeves (62) and the flanges of the valve lower plate (8) are extruded and deformed to lose the sealing; the one end of membrane pole (63) is connected in the bowl form bottom of membrane cover (62), the other end of membrane pole (63) corresponds and connects on impeller (4), membrane pole (63) are used for extrudeing membrane cover (62).

4. A diaphragm pump capable of transmitting power with high efficiency according to claim 1, characterized in that a sealing gasket (12) is provided between the valve lower plate (8) and the valve upper plate (9), and the sealing gasket (12) is provided with a vent hole corresponding to the air inlet end of the check valve (7).

5. A diaphragm pump with high power transmission according to claim 3, characterized in that the check valve (7) is a umbrella-spike check valve, the straight rod end of which abuts against the valve upper plate (9), and the umbrella end of which is fittingly arranged in the diaphragm casing (62).