CN209892442U

CN209892442U - Bidirectional fluid pump

Info

Publication number: CN209892442U
Application number: CN201920691335.0U
Authority: CN
Inventors: 王喜来
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-01-03
Anticipated expiration: 2029-05-14

Abstract

The utility model discloses a two-way fluid pump, including cylinder body and drive arrangement, the cylinder body inner chamber rotates and is connected with driving gear axle and with driving gear shaft meshed driven gear axle, the piston that leans on cylinder body inner wall is installed respectively to above-mentioned gear shaft, piston and above-mentioned gear shaft divide into cavity I and cavity II with the cylinder body inner chamber, cavity I and cavity II all are equipped with the external fluid inlet of intercommunication and fluid outlet, drive driving gear axle and driven gear shaft through drive arrangement, make the piston of installing respectively at driving gear axle and driven gear shaft do reciprocal rotary motion each other in the cylinder body inner chamber, when making I volume increase of cavity or reducing, II volume correspondences of cavity reduce or increase, can reach the effect of two continuous reciprocal functions of cavity, effectively improve the work efficiency of fluid pump.

Description

Bidirectional fluid pump

Technical Field

The utility model relates to a fluid pump, especially a two-way fluid pump.

Background

The fluid pump consists of a cylinder body and a driving device, and the driving device drives a gear shaft and a piston in the cylinder body to move. The piston moves to increase or reduce the volume of the cylinder inner cavity, and the cylinder inner cavity and the outside generate pressure difference, so that the fluid is sucked or discharged by the fluid pump. In the prior art, only one suction or discharge of the fluid pump is achieved per upward or downward movement of the piston, resulting in a low working efficiency of the fluid pump, and therefore, there is a need for further improvement of the fluid pump.

Disclosure of Invention

In order to overcome the deficiencies of the prior art, the utility model provides a two-way fluid pump.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a two-way fluid pump, includes cylinder body and drive arrangement, the cylinder body inner chamber rotates and is connected with driving gear axle and with driving gear axle meshed driven gear axle, and driving gear axle one end is worn out to the cylinder body outside and is equipped with the transmission portion of being connected with the drive arrangement transmission, all is equipped with the piston of arranging along the axial on driving gear axle and the driven gear axle, piston one end is connected with the gear shaft, and the other end supports and leans on the cylinder body inner wall, separates the cylinder body inner chamber for cavity I and cavity II through driven gear axle, driving gear axle and the above-mentioned piston on both, and cavity I and cavity II all are equipped with the fluid entry and the fluid outlet that communicate the external world, and drive arrangement drives driving gear axle and driven gear axle through the transmission portion, make the piston of installing respectively at driving gear axle and driven gear axle do reciprocal rotary.

And open slots for inserting pistons are formed in the driving gear shaft and the driven gear shaft.

And a spring is clamped between the bottom wall of the open slot and the piston.

The piston comprises a mounting part connected with the gear shaft and a rotating part abutted against the inside of the cylinder body.

The cross-section of rotating part is triangle-shaped.

The installation department is equipped with the recess, the recess is equipped with the sealing strip.

The fluid inlet is provided with an inlet valve plate, and the fluid outlet is provided with an outlet valve plate.

The driving device comprises a motor and a crankcase, a crankshaft device is arranged in the crankcase, one end of the crankcase is connected with the motor, the other end of the crankcase is connected with the transmission part, and the transmission part is driven to reciprocate by the internal crankshaft device.

The driving device is a servo motor, and the servo motor is connected with the transmission part.

The utility model has the advantages that: the utility model discloses well cylinder inner chamber passes through driven gear shaft, driving gear shaft and the above-mentioned piston on both separate for cavity I and cavity II, cavity I and cavity II all are equipped with the external fluid entry of intercommunication and fluid outlet, drive driving gear shaft and driven gear shaft through drive arrangement, make the piston of installing respectively on driving gear shaft and driven gear shaft do reciprocal rotary motion each other in cylinder inner chamber, when making I volume increase of cavity or dwindling, II volume correspondences of cavity dwindle or increase, can reach the effect of two continuous reciprocal functions of cavity, effectively improve the work efficiency of fluid pump.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is an overall schematic view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a cross-sectional view B-B of FIG. 2;

fig. 5 is a schematic structural view of the crankshaft device of the present invention;

fig. 6 is a cross-sectional view of the crankcase of the present invention.

Detailed Description

Referring to fig. 1 to 4, a bidirectional fluid pump includes a cylinder body 1 and a driving device 2, a driving gear shaft 3 and a driven gear shaft 4 engaged with the driving gear shaft 3 are rotatably connected in the cylinder body 1, one end of the driving gear shaft 3 penetrates out of the cylinder body 1 and is provided with a transmission part 5 connected with the driving device 2, pistons 6 arranged along an axial direction are arranged on the driving gear shaft 3 and the driven gear shaft 4, one end of each piston 6 is connected with the gear shaft, and the other end of each piston 6 abuts against the inner wall of the cylinder body 1; because the volume of the inner cavity of the cylinder body 1 is unchanged, the driven gear shaft 4, the driving gear shaft 3 and the piston 6 separate the inner cavity of the cylinder body 1 into a cavity I8 and a cavity II 9, the cavity I8 and the cavity II 9 are both provided with a fluid inlet 12 and a fluid outlet 11 which are communicated with the outside, the driving gear shaft 3 is driven by the driving device 2 through the transmission part 5 and is driven by the driven gear shaft 4 meshed with the driving gear shaft 3, and when the piston 6 arranged on the driving gear shaft 3 is driven to do reciprocating rotary motion, the piston 6 of the driven gear shaft 4 does reciprocating motion of reverse rotation in the inner cavity of the cylinder body 1. When the two pistons 6 start to work, the chamber I8 rotates to the end point of the reciprocating rotation motion in the direction, so that the volume of the chamber I8 is reduced while the volume of the chamber II 9 is increased. In the process, fluid in the chamber I8 is discharged through a fluid outlet 11 communicated with the chamber I8, and external fluid is sucked through a fluid inlet 12 communicated with the chamber II 9. Then the two pistons 6 start to work in the other direction again, and rotate to the end point of the reciprocating rotation motion in the other direction, so that the volume of the chamber I8 is increased while the volume of the chamber II 9 is reduced. In the process, the fluid in the chamber II 9 is discharged through the fluid outlet 11 communicated with the chamber II 9, and the external fluid is sucked through the fluid inlet 12 communicated with the chamber I8. Two cavities in the cylinder body 1 continuously and repeatedly operate simultaneously, and the working efficiency of the fluid pump is effectively improved.

As the utility model discloses a preferred scheme, the open slot 7 that is equipped with on piston 6 through driving gear shaft 3 and the driven gear shaft 4 carries out quick effectual installation, and open slot 7 diapire is equipped with spring 71. The spring 71 is pressed against the bottom wall of the open slot 7 by the piston 6, and under the action of the spring, the other end of the piston 6 is more attached to the inner wall of the cylinder 1, which is beneficial to the suction and discharge of fluid by the fluid pump.

Preferably, the piston 6 includes a mounting portion 61 connected to the gear shaft and a rotating portion 62 abutting the inside of the cylinder 1. The rotary portion 62 has a triangular cross section. Above-mentioned triangle-shaped bottom surface is connected with installation department 61, and the apex angle supports and leans on 1 inner wall of cylinder body, effectively reduces the clearance between rotating part 62 and the 1 inner wall of cylinder body, makes the fluid pump can reach better suction and discharge effect to the fluid.

Further, the mounting portion 61 is provided with a groove 63, and the groove 63 is provided with a weather strip 64. The sealing strip 64 can effectively prevent fluid from entering the bottom of the open groove 7, and the fluid is prevented from contacting the spring 71, so that the spring is easy to rust, and the service life of the spring is influenced. On the other hand, the sealing strip 64 can block the fluid from flowing between the chamber I8 and the chamber II 9 through the opening groove 7, so that the pressure difference between the two chambers is ensured, and the suction and the discharge of the fluid by the fluid pump are facilitated.

Further, the fluid inlet 12 is provided with an inlet valve plate 13, and the fluid outlet 11 is provided with an outlet valve plate 14. When fluid enters the chamber from the fluid inlet 12, the inlet valve sheet 13 is opened to enable the fluid to flow into the chamber, and the outlet valve sheet 14 on the fluid outlet 11 communicated with the same chamber is closed to block the fluid from entering. When fluid is discharged from the fluid outlet 11 to the chamber, the outlet valve sheet 14 is opened to discharge the fluid out of the chamber, and the inlet valve sheet 13 on the fluid inlet 12 communicated with the same chamber is closed to block the fluid discharge. The above structure can prevent the fluid from being discharged from the fluid inlet 12 or sucked from the fluid outlet 11 to affect the operation efficiency of the fluid pump.

Referring to fig. 5, fig. 6, as the first embodiment of the present invention, the driving device 2 includes the motor and the inside crankcase that is equipped with the crank device 10, the crank device includes the drive wheel 101 that the motor drove, the crankshaft wheel 102, connecting rod 103 and idle wheel 104 constitute, crankshaft wheel 102 and drive wheel 101 mesh transmission, the rethread connecting rod 103 is connected with idle wheel 104, idle wheel 104 meshes with the transmission portion 5 of driving gear shaft 3 and carries out the transmission, idle wheel 104 realizes reciprocating motion under the drive of crankshaft wheel 102 and connecting rod 103, and then drive transmission portion 5 makes driving gear shaft 3 carry out reciprocating rotary motion.

As the second embodiment of the present invention, the driving device 2 may also be a servo motor, and the servo motor is connected to the transmission part 5. The servo motor can change the rotation direction of the servo motor at any time through a servo system, and the reciprocating rotation motion of the transmission part 5 is realized.

Claims

1. A bidirectional fluid pump comprising a cylinder (1) and a drive (2), characterized in that: the inner cavity of the cylinder body (1) is rotatably connected with a driving gear shaft (3) and a driven gear shaft (4) meshed with the driving gear shaft (3), one end of the driving gear shaft (3) penetrates out of the cylinder body (1) and is provided with a transmission part (5) in transmission connection with a driving device (2), pistons (6) arranged along the axial direction are arranged on the driving gear shaft (3) and the driven gear shaft (4), one end of each piston (6) is connected with the gear shaft, the other end of each piston abuts against the inner wall of the cylinder body (1), the inner cavity of the cylinder body (1) is divided into a cavity I (8) and a cavity II (9) through the driven gear shaft (4), the driving gear shaft (3) and the pistons (6) on the driven gear shaft and the driving gear shaft, the cavity I (8) and the cavity II (9) are provided with a fluid inlet (12) and a fluid outlet (11) communicated with the outside, and the driving gear shaft (3) and the driven gear, the pistons (6) respectively arranged on the driving gear shaft (3) and the driven gear shaft (4) do reciprocating rotary motion in opposite directions in the inner cavity of the cylinder body (1).

2. The fluid pump of claim 1, wherein: and open slots (7) for inserting the pistons (6) are formed in the driving gear shaft (3) and the driven gear shaft (4).

3. The fluid pump of claim 2, wherein: and a spring (71) is clamped between the bottom wall of the open slot (7) and the piston (6).

4. The fluid pump of claim 1, wherein: the piston (6) comprises a mounting part (61) connected with the gear shaft and a rotating part (62) abutted with the inside of the cylinder body (1).

5. The fluid pump of claim 4, wherein: the rotating portion (62) has a triangular cross section.

6. The fluid pump of claim 4, wherein: the installation part (61) is provided with a groove (63), and the groove (63) is provided with a sealing strip (64).

7. The fluid pump of claim 1, wherein: the fluid inlet (12) is provided with an inlet valve plate (13), and the fluid outlet (11) is provided with an outlet valve plate (14).

8. The fluid pump of claim 1, wherein: the driving device (2) comprises a motor and a crankcase, wherein the crankcase is internally provided with a crankshaft device (10), one end of the crankcase is connected with the motor, the other end of the crankcase is connected with the transmission part (5), and the transmission part (5) is driven to reciprocate by the internal crankshaft device.

9. The fluid pump of claim 1, wherein: the driving device (2) is a servo motor, and the servo motor is connected with the transmission part (5).