CN219242129U

CN219242129U - Elastic driving piston pump

Info

Publication number: CN219242129U
Application number: CN202222133069.4U
Authority: CN
Inventors: 汤斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2023-06-23
Anticipated expiration: 2032-08-15

Abstract

The utility model provides an elastic drive piston pump, its characterized in that includes cylinder body, first piston, first rotor, spring, eccentric transmission shaft, the quantity of eccentric transmission shaft be 2 and parallel arrangement on the cylinder body, the quantity of first rotor is 2 and sets up respectively on 2 eccentric transmission shafts, first rotor roll or slide on first piston, set up drive mechanism such as gear or band pulley on 2 eccentric transmission shafts and make 2 synchronous rotations in the same direction or reverse between the first rotor, 2 first rotors drive first piston upward movement jointly, the both ends of spring set up respectively on first piston and cylinder body, perhaps the both ends of spring are provided with the drive belt, the drive belt passes through the eccentric transmission shaft setting on first piston, after the upward movement of first piston, spring drive first piston downward movement is pressed contact state to first rotor all the time to first piston under the effect of spring.

Description

Elastic driving piston pump

Technical Field

The utility model relates to a displacement pump, an engine and a transmission mechanism, in particular to the fields of plunger pumps, vacuum pumps, compression pumps, air compressors, delivery pumps, gas turbines, internal combustion engines, turbines, metering pumps, linear transmission and the like.

Background

Volumetric pumps primarily utilize the change in volume of a chamber to draw in and squeeze out fluid while completing an energy conversion process, such as a liquid turbine or gas turbine device to convert kinetic and potential energy of the fluid into mechanical energy. The existing crank connecting rod piston displacement pump has the defects of large volume, large vibration, poor stability, low efficiency, sealing effect caused by direct lateral acting force of a piston on a cylinder, poor service life and the like, and is mainly used for working conditions of lower rotating speed and middle and small power.

Disclosure of Invention

The utility model reduces the volume and the quality of the device, greatly improves the sealing reliability and the service life of the device, reduces the number of parts and components of the device, reduces the processing difficulty and the cost of the device, can be suitable for working conditions of high, medium and low power, high, medium and low rotation speed, has the advantages of high performance and high reliability, eliminates the direct lateral acting force of a piston on a cylinder, reduces the quality of a reciprocating motion part, optimizes the transmission process, improves the transmission efficiency, effectively reduces the additional load of the motion part, and reduces vibration and noise.

In order to achieve the above object, the present utility model provides the following technical solutions:

As an improvement of the utility model, the first rotor is a swinging rotor, and a gear mechanism is arranged on the rotor and the piston to enable the swinging rotor to swing back and forth within a set angle.

The utility model provides an elasticity drive piston pump, a serial communication port, including the cylinder body, first piston, the second piston, first rotor, the second rotor, the spring, eccentric transmission shaft's quantity be 2 and parallel arrangement on the cylinder body, the quantity of first rotor is 2 and sets up respectively on 2 eccentric transmission shafts, the quantity of second rotor is 2 and sets up respectively on 2 eccentric transmission shafts, first rotor and second rotor roll or slide respectively on first piston and second piston, set up drive mechanism such as gear or band pulley on 2 eccentric transmission shafts and make 2 first rotors corotation or reverse rotation, also make 2 second rotors corotation or reverse rotation, the both ends of spring set up respectively on first piston and second piston, or the both ends of spring are provided with the drive belt, the both ends of drive belt are set up respectively on first piston and second piston through the wheel that is located on the cylinder body, first piston keeps the pressure contact state to first rotor all the time under the effect of spring, the second piston keeps the pressure contact state to the second rotor all the time under the effect of spring.

As an improvement of the utility model, the first piston and the second piston are provided with curved surface tracks.

As an improvement of the utility model, the number of the elastic driving piston pumps is more than 2.

As an improvement of the utility model, the transmission belt can be a rope, a steel wire, a steel belt, a synchronous belt and other transmission members.

The beneficial effects of adopting above technical scheme are: the utility model relates to a piston pump with a crank connecting rod structure, which is characterized in that 2 eccentric transmission shafts are arranged, the 2 eccentric transmission shafts are linked through a gear mechanism or a belt pulley mechanism, so that 2 first rotors arranged on the eccentric transmission shafts reversely or in the same direction rotate, the acting force center of a piston is positioned between the 2 first rotors, particularly, when the rotors reversely rotate, the piston is in a controlled motion state without side acting force or torsion acting force, a spring is arranged on the piston, and drives the piston to change the motion direction and simultaneously keep the rotors and the pistons with corresponding actions in a state of being pressed and mutually driven, thereby eliminating reversing impact between the pistons and the rotors, greatly reducing vibration and noise of equipment, greatly improving the sealing effect of the pistons and the service life of sealing pieces, and greatly reducing friction loss.

Drawings

Fig. 1 is a schematic perspective view of an elastically driven piston pump of the present utility model.

Fig. 2 is a perspective view of another arrangement of the spring of the embodiment of fig. 1.

Fig. 3 is a schematic view of a structure in which a piston is provided with a curved track in the present utility model.

Fig. 4 is a schematic view of a structure in which 2 pistons are concentrically arranged in the present utility model.

Fig. 5 is a schematic view of a structure in which 2 pistons are arranged in parallel in the present utility model.

The marks in the figure are:

1-cylinder, 21-first piston, 22-second piston, 25-curved track, 31-first rotor, 32-second rotor, 5-spring, 52-driving belt, 53-wheel, 7-eccentric driving shaft.

Detailed Description

Preferred embodiments of the elastically driven piston pump of the present utility model are described in detail below with reference to the accompanying drawings.

Referring to fig. 1, fig. 2 and fig. 3, fig. 1, fig. 2 and fig. 3 disclose an elastic driving piston pump of the present utility model, which comprises a cylinder 1, a first piston 21, a first rotor 31, a spring 5 and eccentric transmission shafts 7, wherein the number of the eccentric transmission shafts 7 is 2 and the eccentric transmission shafts are arranged on the cylinder 1 in parallel, the number of the first rotors 31 is 2 and the first rotors 31 are respectively arranged on the 2 eccentric transmission shafts 7, the first rotors 31 roll on the first piston 21, a gear transmission mechanism is arranged on the 2 eccentric transmission shafts 7 to enable the 2 first rotors 31 to reversely synchronously rotate, the 2 first rotors 31 jointly drive the first piston 21 to move upwards, two ends of the spring 5 are respectively arranged on the first piston 21 and the cylinder 1, when the first piston 21 is in the upward movement, the spring 5 drives the first piston 21 to move downwards, the first rotors 31 are always kept in a state of being pressed and contacted and mutually driven under the action of the spring 5, a plane formed by the axes of the two first rotors 31 is always perpendicular to the first piston 21 in the movement process, the first pistons 21 always roll over the axes, the first pistons 21 are always in the state of being in the reverse motion, and the reverse motion is not easy, the reverse motion is free of the first piston 21 is in the reverse motion, and the reverse motion has the long-phase, and the reciprocating motion has the advantages, and high efficiency, and the reverse motion performance has the advantages, and long reciprocating motion performance, and the reverse structure has the advantages, and poor reciprocating structure and poor performance, and long reciprocating structure, and poor reciprocating structure, and long service life, and compared, and advantages are compared, and has the advantages.

Preferably, the cylinder body is provided with a cylinder sleeve, a sealing element, a valve and other components to form the piston type volumetric pump.

In the embodiment of fig. 2, the two ends of the spring 5 are provided with the driving belts 52, the driving belts 52 are arranged at the two ends of the first piston 21 through the eccentric transmission shafts, the spring 5 enables the first piston 21 and the first rotor 31 to keep pressed contact all the time, meanwhile, the spring 5 drives the first piston 21 to move downwards, the structure of the embodiment is simple, and the deformation of the spring 5 is small and the reliability is high.

In the embodiment of fig. 3, the curved track 25 is disposed on the first piston 21, and the rolling movement of the first rotor 31 on the curved track 25 can increase the acting force area of the rotor and the piston, and the transmission process can be changed by adjusting the curved surface of the curved track 25, for example, when the engine is applied to the engine, the time of the engine in constant volume combustion can be adjusted.

Preferably, the spring is an elastic member such as a metal spring, a hydraulic spring, an electromagnetic spring, an air spring, and the like.

Preferably, the rotor is a slider rotor to increase the driving force.

Preferably, the utility model can do work on liquid and gas, and can also be used as a linear reciprocating transmission mechanism.

Referring to fig. 4 and 5, fig. 4 and 5 disclose an elastically driven piston pump with paired piston operation, which is characterized by comprising a cylinder 1, a first piston 21, a second piston 22, a first rotor 31, a second rotor 32, a spring 5 and eccentric transmission shafts 7, wherein the number of the eccentric transmission shafts 7 is 2 and is arranged on the cylinder 1 in parallel, the number of the first rotors 31 is 2 and is respectively arranged on the 2 eccentric transmission shafts 7, the number of the second rotors 32 is 2 and is respectively arranged on the 2 eccentric transmission shafts 7, the first rotors 31 and the second rotors 32 roll on the first pistons 21 and the second pistons 22 respectively, gears are arranged on the 2 eccentric transmission shafts 7 to reversely rotate the 2 first rotors 31, the 2 second rotors 32 reversely rotate, the first pistons 21 and the second pistons 22 are concentrically arranged, the spring 5 is arranged on the first pistons 21 and the second pistons 22, the spring 5 drives the second pistons 22 to move upwards when the first pistons 21 are driven by the first rotors 31, and the second pistons 22 are driven to move downwards when the second pistons 22 are driven by the second rotors 22 to move downwards. The first piston 21 and the first rotor 31 and the second piston 22 and the second rotor 32 are always kept in a pressed contact and mutually driven state, and the first piston 21 and the second rotor 32 and the second piston 22 and the first rotor 31 are always kept in a non-contact state.

Preferably, the second piston does not work to the outside, and only serves as a transmission member, so that the first piston and the first rotor are kept in a pressed contact state through the spring 5.

In the embodiment of fig. 5, the first piston 21 and the second piston 22 are arranged in parallel, the spring 5 is arranged on a belt 52, the belt 52 is arranged on the first piston 21 and the second piston 22 by means of wheels 53, the spring 5 drives the second piston 22 to move downwards when the first rotor 31 drives the first piston 21 to move upwards, and the spring 5 drives the first piston 21 to move downwards when the second rotor 32 drives the second piston 22 to move upwards.

Preferably, the rotor is a swinging rotor, and the rotor can be formed by a bearing bush.

Preferably, the reciprocating swing angle of the swing type rotor is smaller than 120 degrees.

Preferably, a spring force adjusting device is arranged on the spring.

Preferably, the number of the elastically driven piston pumps is greater than 2.

Preferably, a limiting plate is arranged on the piston, and the limiting plate and the rotor are matched to prevent the piston from rotating.

Preferably, the first piston and the second piston can move upwards or downwards at the same time in a certain time interval according to different design requirements, and the spring is alternately in a stretching state and a shortening state.

The above examples are only illustrative of the preferred embodiments of the present utility model and various applications and modifications to the technical solution of the present utility model will fall within the scope of protection defined by the claims.

Claims

1. The utility model provides an elasticity drive piston pump, its characterized in that includes cylinder body (1), first piston (21), first rotor (31), spring (5), eccentric transmission shaft (7), the quantity of eccentric transmission shaft (7) be 2 and parallel arrangement on cylinder body (1), the quantity of first rotor (31) is 2 and sets up respectively on 2 eccentric transmission shafts (7), first rotor (31) roll or slide on first piston (21), set up drive mechanism such as gear or band pulley on 2 eccentric transmission shafts (7) and make 2 first rotors (31) syntropy or reverse synchronous rotation, 2 first rotors (31) drive first piston (21) upward movement jointly, the both ends of spring (5) set up respectively on first piston (21) and cylinder body (1), perhaps spring (5) set up on drive belt (52), drive belt (52) and set up on first piston (21) through eccentric transmission shaft (7), when first piston (21) upwards move after end, spring (5) is to drive first piston (21) and is pressed down in the first piston (21) and is contacted down in the state all the time.

2. An elastically driven piston pump as in claim 1, wherein: the first rotor (31) is a swinging rotor.

3. An elastically driven piston pump as in claim 1, wherein: the first piston (21) is provided with a curved track.

4. An elastic driving piston pump is characterized by comprising a cylinder body (1), a first piston (21), a second piston (22), a first rotor (31), a second rotor (32), a spring (5) and an eccentric transmission shaft (7), wherein the 2 eccentric transmission shafts (7) are arranged on the cylinder body (1) in parallel, the 2 first rotors (31) are respectively arranged on the 2 eccentric transmission shafts (7), the 2 second rotors (32) are respectively arranged on the 2 eccentric transmission shafts (7), the first rotors (31) and the second rotors (32) roll or slide on the first piston (21) and the second piston (22) respectively, a transmission mechanism such as a gear or a belt wheel is arranged on the 2 eccentric transmission shafts (7) so that the 2 first rotors (31) rotate in the same direction or synchronously in opposite directions, the 2 second rotors (32) rotate in the same direction or synchronously in opposite directions, two ends of the spring (5) are respectively arranged on the first piston (21) and the second piston (22), or the spring (5) is arranged on a belt (52) and the second piston (21) are arranged on the first piston (52), the first piston (21) always keeps a pressed contact state to the first rotor (31) under the action of the spring (5), and the second piston (22) always keeps a pressed contact state to the second rotor (32) under the action of the spring (5).

5. An elastically driven piston pump as in claim 4, wherein: the first rotor (31) is a swinging rotor.

6. An elastically driven piston pump as in claim 4, wherein: curved surface tracks are arranged on the first piston (21) and the second piston (22).

7. An elastically driven piston pump as in claim 4, wherein: the number of the elastic driving piston pumps is more than 2.

8. An elastically driven piston pump as in claim 4, wherein: a limiting plate is arranged on the first piston (21), and the limiting plate and the first rotor (31) interact to prevent the first piston (21) from rotating.