CN212272486U

CN212272486U - Multi-cylinder pumping device

Info

Publication number: CN212272486U
Application number: CN202021272739.5U
Authority: CN
Inventors: 尹隽晖; 牛大金
Original assignee: Shenzhen Jinxin Technology Co ltd
Current assignee: Shenzhen Jinxin Technology Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-01-01
Anticipated expiration: 2030-07-01

Abstract

The utility model provides a multi-cylinder pumping installations, include: the vortex line cam can be pivotally installed on the base, the piston cylinders are installed on the base and are arranged along the circumferential direction of the vortex line cam, one pulley is installed on a piston rod of each piston cylinder, a vortex line slide way is formed on the vortex line cam, and each pulley is movably arranged in the vortex line slide way. In the technical scheme, the vortex line slide way restricts the piston rods of the piston cylinders to extend and retract at the speed limited by the vortex line track formed when the vortex line cam rotates, so that the piston rods of the piston cylinders can extend and retract at a constant speed in a reciprocating mode through the vortex line slide way, a return spring does not need to be sleeved on the piston rods, the rotating force of the motor is converted into reciprocating force as much as possible, power consumption is reduced, and the installation process is reduced.

Description

Multi-cylinder pumping device

Technical Field

The utility model relates to a pumping technical field, in particular to multi-cylinder pumping installations.

Background

The pumping device in the prior art adopts crankshaft type drive driven by a motor, and the motor drives an eccentric cam to rotate, so that a connecting rod is driven to change nonlinearly along with the change of a rotating angle. The driving link always swings left and right when the cam rotates. Therefore, the pumping device in the prior art has the following disadvantages:

1. the power consumption is large. The eccentric cam rotates to drive the connecting rod to push the piston to reciprocate, the eccentric cam drives the connecting rod to swing all the time due to uneven self weight, the distance between the hinge point of the output end of the motor and the drive connection and the hinge point of the drive connection and the piston rod changes nonlinearly along with the change of the rotating angle, and the torque of the motor changes all the time, so that the kinetic energy of the rotation of the motor is greatly consumed on the useless swing and torque change, and a large amount of noise is also brought.

2. The structure is complicated, and manufacturing and assembly costs are high: the two hinged parts are movable parts with higher processing and assembling precision requirements, the piston cylinder and the motor support are required to be fixed integral parts, and the processing difficulty is high due to the fact that holes are formed in the two surfaces and the movable parts have higher precision requirements. Further, the crankshaft is required for the multi-cylinder pump, and the difficulty of processing and assembling is even greater.

3. The gas (liquid) flow fluctuation of the inlet and outlet is large, and the gas (liquid) flow fluctuation is matched with a large gas (liquid) storage bottle for use.

SUMMERY OF THE UTILITY MODEL

The utility model provides a multi-cylinder pumping installations to solve at least one above-mentioned technical problem.

In order to solve the above problem, as an aspect of the present invention, there is provided a multi-cylinder pumping device, including: the vortex line cam can be pivotally installed on the base, the piston cylinders are installed on the base and are arranged along the circumferential direction of the vortex line cam, one pulley is installed on a piston rod of each piston cylinder, a vortex line slide way is formed on the vortex line cam, and each pulley is movably arranged in the vortex line slide way.

Preferably, a transmission shaft mounting hole is formed at a rotation center of the spiral cam.

Preferably, the multi-cylinder pumping device further comprises a motor, and an output end of the motor is connected with the transmission shaft mounting hole.

Preferably, the base comprises an upper base and a lower base, a cylinder body fixing groove and a piston rod guide groove are formed after the upper base and the lower base are combined, a cylinder body of the piston cylinder is arranged in the cylinder body fixing groove, and a piston rod of the piston cylinder is arranged in the piston rod guide groove.

In the technical scheme, the vortex line slide way restricts the piston rods of the piston cylinders to extend and retract at the speed limited by the vortex line track formed when the vortex line cam rotates, so that the piston rods of the piston cylinders can extend and retract at a constant speed in a reciprocating mode through the vortex line slide way, a return spring does not need to be sleeved on the piston rods, the rotating force of the motor is converted into reciprocating force as much as possible, power consumption is reduced, and the installation process is reduced.

Furthermore, the utility model discloses the radius change that also utilized the vortex line slide of vortex line cam to have the unit angle is the characteristics of a definite value, has guaranteed that the vortex line cam is at the uniform velocity linear motion that pulley and piston rod were at the uniform velocity when rotating, has avoided the process problems because of the bent axle brought, reduces the consumption to can reduce the noise by a wide margin, its simple structure, with low costs, accurate parts such as motors all adopt the standard substance, the debugging assembly of phase is simple around, the big quick manufacturing in batches of being convenient for.

Drawings

Fig. 1 schematically shows a front view of the present invention;

figure 2 schematically shows a side view of the invention;

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

figure 4 schematically shows a front view of the piston rod;

fig. 5 schematically shows a bottom view of the piston rod;

FIG. 6 schematically illustrates a front view of a vortex cam;

figure 7 schematically shows a cross-sectional view of the vortex line cam.

Reference numbers in the figures: 1. a vortex line cam; 2. a pulley; 3. a piston cylinder; 4. a base; 5. a piston rod; 6. a vortex line slideway; 7. a transmission shaft mounting hole; 8. an upper base; 9. and a lower base.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

The utility model discloses an aspect provides a multi-cylinder pumping installations, include: the device comprises a vortex line cam 1, a pulley 2, a plurality of piston cylinders 3 (for example, 2 cylinders, 3 cylinders and-12 cylinders can be made), and a base 4, wherein the vortex line cam 1 can be pivotally installed on the base 4, the plurality of piston cylinders 3 are installed on the base 4 and are arranged along the circumferential direction of the vortex line cam 1, one pulley 2 is installed on a piston rod 5 of each piston cylinder 3, a vortex line slideway 6 is formed on the vortex line cam 1, and each pulley 2 is movably arranged in the vortex line slideway 6. The outer edge of the pulley 2 slides along the inner and outer edges of the vortex line slideway 6 all the time, so that the piston rod 5 reciprocates. The piston cylinder 3 is a separate component, and the design has the advantage of reducing the manufacturing difficulty and the overall cost. The vortex line slideway 6 forms a micro ball bearing structure. The vortex line slideway 6 is composed of a left-handed vortex line and a symmetrical right-handed vortex line, so that the distance between the sideline and the center of the circle changes with the change of the angle, for example, 0.5mm/18 degrees.

Preferably, a transmission shaft mounting hole 7 is provided at a rotation center of the spiral cam 1. Preferably, the multi-cylinder pumping device further comprises a motor, and an output end of the motor is connected with the transmission shaft mounting hole 7.

Preferably, the base 4 includes an upper base 8 and a lower base 9, the upper base 8 and the lower base 9 are combined to form a cylinder fixing groove and a piston rod guide groove, the cylinder of the piston cylinder 3 is disposed in the cylinder fixing groove, and the piston rod of the piston cylinder 3 is disposed in the piston rod guide groove.

In the above technical solution, the vortex line slideway 6 restricts the piston rods 5 of the piston cylinders 3 to extend and retract at a speed defined by a vortex line track formed when the vortex line cam 1 rotates, so that the piston rods 5 of the plurality of piston cylinders 3 can extend and retract at a constant speed in a reciprocating manner through the vortex line slideway 6, and therefore, a return spring is not required to be sleeved on the piston rods 5, the rotating force of the motor is converted into a reciprocating force as much as possible, and power consumption and installation procedures can be reduced.

Furthermore, the utility model discloses the radius change that also has utilized the vortex line slide 6 of vortex line cam to have the unit angle is the characteristics of a definite value, has guaranteed that the vortex line cam is at the uniform velocity linear motion of uniform velocity is being done to pulley and piston rod 5 when rotating, has avoided the process problems because of the bent axle brings, reduces the consumption to can reduce the noise by a wide margin, its simple structure, with low costs, precision parts such as motor all adopt the standard product, the pilot assembly of phase around is simple, the big quick manufacturing in batches of being convenient for.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-cylinder pumping apparatus, comprising: vortex line cam (1), pulley (2), a plurality of piston cylinder (3) and base (4), but vortex line cam (1) pivot ground is installed on base (4), a plurality of piston cylinder (3) are installed on base (4) and along the circumference of vortex line cam (1) arranges, every all install one on piston rod (5) of piston cylinder (3) pulley (2), be formed with vortex line slide (6) on vortex line cam (1), every pulley (2) set up movably in vortex line slide (6).

2. Multi-cylinder pumping apparatus according to claim 1, wherein a drive shaft mounting hole (7) is provided at the rotational center of the swirl cam (1).

3. Multi-cylinder pumping apparatus according to claim 2, further comprising an electric motor, the output of which is connected to the drive shaft mounting holes (7).

4. Multi-cylinder pumping apparatus according to claim 1, wherein the base (4) comprises an upper base (8) and a lower base (9), the upper base (8) and the lower base (9) forming, in combination, a cylinder fixation slot in which the cylinder of the piston cylinder (3) is disposed and a piston rod guide slot in which the piston rod of the piston cylinder (3) is disposed.