CN211598976U

CN211598976U - Small-size plunger pump

Info

Publication number: CN211598976U
Application number: CN201922076210.XU
Authority: CN
Inventors: 纪洲; 纪林; 白广伟
Original assignee: Shanghai Zhoudao Industrial Co ltd
Current assignee: Shanghai Zhoudao Industrial Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-09-29
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses a small-size plunger pump, including cylinder body, lower cylinder cap, upper cylinder cap, T type axle, spring and seal cover, the centre of upper cylinder cap is equipped with the shaft hole, the seal cover is installed in the shaft hole, T type axle includes plunger and connecting rod, the upper end of connecting rod passes the shaft hole, and the lower extreme of connecting rod connects into a whole with the plunger, the plunger is connected with the inner wall sealing of cylinder body and cuts apart into upper cylinder body and lower cavity with the cylinder body, the spring is located the lower cavity, the centre of lower cylinder cap is equipped with the locating hole, the one end of spring is fixed in the locating hole, and the other end of spring is fixed on the plunger; the lateral surface of the upper cavity is provided with a vent hole, the vertical distance between the vent hole and the bottom of the upper cylinder cover is smaller than half of the height of the plunger, the lateral surface of the lower cavity is provided with an oil suction port and an oil outlet, and the oil suction port and the oil outlet are both provided with one-way valves. The utility model provides a small-size plunger pump realizes that intermittent type pump oil, small, the energy consumption is also little.

Description

Small-size plunger pump

Technical Field

The utility model relates to a cigarette equipment field especially relates to a small-size plunger pump.

Background

The plunger pump is mainly used for carrying out pump type lubricated subassembly to machine transmission position, but present plunger pump when lubricating to small-size automation equipment, has the volume great, and the energy consumption is more, and can not satisfy the requirement of intermittent type pump oil.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned not enough that present plunger pump exists, the utility model provides a realize intermittent type pump oil, small, the small-size plunger pump that the energy consumption is also little.

In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:

a small plunger pump comprises a cylinder body, a lower cylinder cover and an upper cylinder cover, and further comprises a T-shaped shaft, a spring and a sealing sleeve, wherein a shaft hole is formed in the middle of the upper cylinder cover, the sealing sleeve is installed in the shaft hole, the T-shaped shaft comprises a plunger and a connecting rod, the upper end of the connecting rod penetrates through the shaft hole, the lower end of the connecting rod is connected with the plunger into a whole, the plunger is connected with the inner wall of the cylinder body in a sealing mode and divides the cylinder body into an upper cavity and a lower cavity, the spring is located in the lower cavity, a positioning hole is formed in the middle of the lower cylinder cover, one end of the spring is fixed in the positioning hole, and the; the lateral surface of the upper cavity is provided with a vent hole, the vertical distance between the vent hole and the bottom of the upper cylinder cover is smaller than half of the height of the plunger, the lateral surface of the lower cavity is provided with an oil suction port and an oil outlet, and the oil suction port and the oil outlet are both provided with one-way valves.

According to the utility model discloses an aspect, small-size plunger pump is equipped with the sealing washer, the centre of plunger is equipped with the notch, the sealing washer is located the notch, the plunger passes through the inner wall sealing connection of sealing washer and cylinder body.

According to an aspect of the present invention, the seal ring is a wear-resistant seal ring.

According to one aspect of the present invention, the oil suction port and the oil outlet are symmetrically disposed at both sides of the air vent; the bottom of the plunger is also provided with a positioning hole, the height of the positioning hole is not more than 2CM, and two ends of the spring are respectively fixed in the positioning hole.

The utility model discloses the advantage of implementing lies in: the utility model discloses a small-size plunger pump, including the cylinder body, the lower cylinder cap, the upper cylinder cap, T type axle, spring and seal cover, the plunger is connected with the inner wall sealing of cylinder body and is cut apart into upper chamber body and lower chamber body with the cylinder body, the spring is located the lower chamber body, one end of spring is fixed in the locating hole of lower cylinder cap, the other end of spring is fixed on the plunger, the side of lower chamber body is equipped with oil absorption opening and oil-out, oil absorption opening and oil-out all install the check valve, like this small-size plunger pump under the effect of external power (for example: cylinder), when T type axial lift, oil absorption opening inhales lubricating oil into the cylinder body (the oil-out closes the oil circuit because of having set up the check valve), because the side of upper chamber body is equipped with an air vent, the air in the upper chamber can; when the T-shaped shaft compresses the spring downwards, the oil outlet conveys lubricating oil in the cylinder body to processing equipment for lubrication (an oil suction port closes an oil way due to the fact that the one-way valve is arranged), at the moment, air outside the plunger pump can quickly enter the upper cavity through the vent hole, oil suction resistance of the equipment is reduced, oil is pumped quickly, meanwhile, intermittent oil pumping is achieved by means of reciprocating motion of the T-shaped shaft driven by external power (such as an air cylinder), in addition, the small plunger pump is small in size and easy to process, power is provided by the air cylinder, and consumed energy is small.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only one embodiment of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without any inventive work.

Fig. 1 is a schematic structural view of a small plunger pump using a cylinder for external power according to the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A- -A in FIG. 1.

In the figure: the oil cylinder comprises an upper cylinder cover 1, a plunger 2, a cylinder body 3, a sealing ring 4, an oil suction opening 5, a spring 6, a lower cylinder cover 7, a positioning hole 8, a vent hole 9, a notch 10, a connecting rod 11, a shaft hole 12, a sealing sleeve 13, a floating joint 14, an oil outlet 15, an air cylinder 16, a support 17, a lower cavity 18 and an upper cavity 19

Detailed Description

The following further description is made with reference to the accompanying drawings and examples,

as shown in fig. 1 to 2, a small plunger pump comprises a cylinder body 3, a lower cylinder cover 7, an upper cylinder cover 1, a T-shaped shaft, a spring 6 and a sealing sleeve 13, wherein the middle of the upper cylinder cover 1 is provided with a shaft hole 12, the sealing sleeve 13 is installed in the shaft hole 12, the T-shaped shaft comprises a plunger 2 and a connecting rod 11, the upper end of the connecting rod 11 penetrates through the shaft hole 12, the lower end of the connecting rod 11 is connected with the plunger 2 into a whole, the plunger 2 is connected with the inner wall of the cylinder body 3 in a sealing manner and divides the cylinder body into an upper cavity 19 and a lower cavity 18, the spring 6 is located in the lower cavity 18, the middle of the lower cylinder cover 7 is provided with a positioning hole 8, one end of the spring 6 is fixed in the positioning hole 8; the side of the upper cavity 19 is provided with a vent hole 9, the vertical distance between the vent hole 9 and the bottom of the upper cylinder cover 1 is less than half of the height of the plunger 2, the side of the lower cavity 18 is provided with an oil suction opening 5 and an oil outlet 15, the oil suction opening 5 and the oil outlet 15 are both provided with one-way valves, thus, when the T-shaped shaft is lifted upwards, the oil suction opening 5 sucks lubricating oil into the cylinder body 3, the oil outlet 15 closes an oil way due to the one-way valve, when the T-shaped shaft is compressed downwards on the spring 6, the oil outlet 15 conveys the lubricating oil in the cylinder body 3 to processing equipment for lubrication, and the oil suction opening 5 closes the oil way due to the one-.

In practical application, in order to improve the leakproofness of the inner walls of the plunger 2 and the cylinder body 3, the small plunger pump can be provided with a sealing ring 4, the sealing ring 4 generally adopts a wear-resistant sealing ring, a notch 10 is formed in the middle of the plunger 2, the sealing ring 4 is located in the notch 10, and the plunger 2 is connected with the inner wall of the cylinder body 3 in a sealing mode through the sealing ring 4.

In practical application, as shown in fig. 1, an air cylinder 16 is adopted as external power, the air cylinder 16 is fixed on a support 17, an oil suction port 5 and an oil outlet 15 are symmetrically arranged on two sides of a vent hole 9, a positioning hole 8 is also arranged at the bottom of a plunger 2, the height of the positioning hole 8 is generally not more than 2CM, and two ends of a spring 6 are respectively fixed in the positioning hole 8. The cylinder 16 is connected with the connecting rod 11 through the floating joint 14, when the cylinder 16 works normally, the cylinder can drive the T-shaped shaft to reciprocate, so that intermittent oil pumping is achieved, because the side surface of the upper cavity 19 is provided with the vent hole 9, and the vertical distance between the vent hole 9 and the bottom of the upper cylinder cover 1 is less than half of the height of the plunger 2, when the T-shaped shaft is lifted upwards and approaches the stroke end point, the plunger 2 can block the vent hole 9, at the moment, air in the upper cavity 19 cannot be discharged, and along with further lifting of the T-shaped shaft, air in the upper cavity 19 can be extruded to generate very large resistance, so that the lifting speed of the T-shaped shaft is rapidly slowed down, the T-shaped shaft which runs rapidly is buffered, and the cylinder body 3 is protected (for example, severe impact between the T-shaped shaft and the cylinder body 3 is avoided).

The utility model discloses the advantage of implementing lies in: the utility model discloses a small-size plunger pump, plunger 2 and the inner wall sealing connection of cylinder body 3 and cut apart into upper chamber 19 and lower chamber 18 with cylinder body 3, spring 6 is located lower chamber 18, the one end of spring 6 is fixed in locating hole 8 of lower cylinder cap 7, the other end of spring 6 is fixed on plunger 2, the side of lower chamber 18 is equipped with oil absorption mouth 5 and oil-out 15 (oil absorption mouth 5 and oil-out 15 all install the check valve), small-size plunger pump drives the reciprocating motion of T type axle under the drive of cylinder 16 like this, when T type axial lift, oil absorption mouth 5 inhales lubricating oil in cylinder body 3 (oil-out 15 closes the oil circuit because of having set up the check valve), because the side of upper chamber 19 is equipped with an air vent 9, the air in the upper chamber 19 can utilize air vent 9 to discharge outside the plunger pump fast, reducible air resistance; when the spring 6 is compressed downwards by the T-shaped shaft, the lubricating oil in the cylinder body 3 is conveyed to the processing equipment by the oil outlet 15 for lubrication (the oil suction port 5 closes an oil way due to the arrangement of the one-way valve), at the moment, the air outside the plunger pump can quickly enter the upper cavity 19 by utilizing the vent hole 9, the oil suction resistance of the equipment is reduced, the oil is quickly pumped, meanwhile, the intermittent oil pumping is realized by the reciprocating motion of driving the T-shaped shaft by the cylinder 16, in addition, the size of the small plunger pump is small, the processing is easy, the power is provided by the cylinder 16, the installation is convenient when the small automatic equipment is used, the consumed energy is small, and a large amount of energy is saved.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A small plunger pump comprises a cylinder body, a lower cylinder cover and an upper cylinder cover, and is characterized by further comprising a T-shaped shaft, a spring and a sealing sleeve, wherein a shaft hole is formed in the middle of the upper cylinder cover; the lateral surface of the upper cavity is provided with a vent hole, the vertical distance between the vent hole and the bottom of the upper cylinder cover is smaller than half of the height of the plunger, the lateral surface of the lower cavity is provided with an oil suction port and an oil outlet, and the oil suction port and the oil outlet are both provided with one-way valves.

2. The small-sized plunger pump according to claim 1, wherein the small-sized plunger pump is provided with a seal ring, a notch is formed in the middle of the plunger, the seal ring is positioned in the notch, and the plunger is hermetically connected with the inner wall of the cylinder body through the seal ring.

3. The miniature plunger pump of claim 2 wherein said seal is a wear seal.

4. The small-sized plunger pump according to claim 1, wherein the oil suction port and the oil discharge port are symmetrically disposed at both sides of the breather hole; the bottom of the plunger is also provided with a positioning hole, the height of the positioning hole is not more than 2CM, and two ends of the spring are respectively fixed in the positioning hole.