CN201757042U

CN201757042U - Reciprocating plunger pump

Info

Publication number: CN201757042U
Application number: CN2010202808585U
Authority: CN
Inventors: 冯振强; 李德生; 许崇璋; 吴波
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-30
Filing date: 2010-07-30
Publication date: 2011-03-09
Anticipated expiration: 2020-07-30

Abstract

The utility model discloses a reciprocating plunger pump, which includes a pump body, a conical spring, a plunger, an oil-adsorption one-way valve and an oil-discharge one-way valve. A cam is propped against the plunger, the conical spring is arranged outside the conical spring, the valve body of the oil-adsorption one-way valve is also taken as the bottom plug of the bottom of the pump body, the oil-adsorption one-way valve has a valve core sealed to be a hemisphere, and the oil-discharge one-way valve is a cartridge valve and is combined and sealed with the pump body by a tetrafluoride sealing ring and an O-shaped sealing ring. The reciprocating plunger pump has small volume and simple structure, and is suitable for being inserted and mounted in a portable integration hydraulic station.

Description

A kind of reciprocating plunger pump

Technical field

The utility model relates to a kind of plunger pump, particularly a kind of reciprocating plunger pump.

Background technique

In recent years, a lot of industries need mobile hydraulic station to satisfy the industry requirements of one's work, simultaneously along with the hydraulic system integrated development, also more and more need oil hydraulic pump is integrated in the whole hydraulic station, little to satisfy volume, lightweight, grade easy to carry requirement, but existing hydraulic system is formed in the structure, oil hydraulic pump mostly uses separately as an energy conversion component, thereby existing oil hydraulic pump complex structure mostly, volume is relatively large, is not suitable in the integrated hydraulic station.

The model utility content

Technical assignment of the present utility model is at not enough in the above-mentioned technology, provides a kind of volume little, lightweight reciprocating plunger pump.

The technological scheme that the utility model technical solution problem is adopted is: a kind of reciprocating plunger pump, comprise the pump housing, volute spring, plunger, oil sucting one-way valve and oil extraction one-way valve, there are a cam and plunger to hold, volute spring is positioned at pump housing outside, oil sucting one-way valve is made up of spool and valve body, the oil sucting one-way valve spool is by shutoff, guide rod, spring and spring stop piece constitute, the valve body of described oil sucting one-way valve is again simultaneously stifled at the bottom of the pump housing of described pump housing bottom, described its shutoff of oil sucting one-way valve spool is a hemisphere, described oil extraction one-way valve is a cartridge valve, and between the pump housing with polytetrafluoroethylsealed sealed circle and O RunddichtringO combination seal.

All there is the groove that matches with the spring end shape at the described plunger and the pump housing position that contacts with tapered spring.

Stifled and hemisphere shutoff junction surface are hemisphere face at the bottom of the described pump housing, and have at least one through hole on the hemisphere face.

Cylndrical surface, the described pump housing outside has rectangular through slot.

Have a hole between described oil extraction one-way valve plug-in opening and plunger pump cavity volume.

The beneficial effect that the utility model can bring is:

One. the utility model is integrated into oil sucting one-way valve on the pump housing, and the oil extraction one-way valve is connected with the pump housing in the mode of plug-in mounting, has effectively reduced the volume of plunger pump.

Two. the unidirectional cartridge valve of oil extraction plays fixation simultaneously, this reciprocating plunger pump can be inserted in the integrated hydraulic station easily.

Three. the shutoff of oil sucting one-way valve hemisphere type contacts with stifled hemisphere face at the bottom of the pump housing, has effectively increased sealing area, and sealing effect is good when making oil extraction.

Four. simple in structure, be easy to promote.

Description of drawings

Fig. 1, reciprocating plunger pump integral installation figure of the present utility model.

The A-A sectional view of Fig. 2, reciprocating plunger pump Fig. 1 of the present utility model.

The B-B sectional view of Fig. 3, reciprocating plunger pump Fig. 2 of the present utility model

Fig. 4, reciprocating plunger pump stereochemical structure exploded view of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, the utility model is done following detailed description the in detail:

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of reciprocating plunger pump, comprise the unidirectional cartridge valve 17 of cam 18, plunger 1, tapered spring 2, the pump housing 3, oil sucting one-way valve 16 and oil extraction, described oil sucting one-way valve 16 is positioned at pump housing bottom, comprise that stifled 4 at the bottom of the pump housing, half ball valve is stifled 6, guide rod 7, elastic chuck 5, spring 8, end cap of the spring 9, the unidirectional cartridge valve of described oil extraction is positioned at the pump housing near on the sidewall of bottom, comprises steel ball 12, spring 11, triangle spool 10, valve body 15, polytetrafluoroethylsealed sealed circle 14, O RunddichtringO 13.

Reciprocating plunger pump working principle of the present utility model: when the hydraulic station cam ring 18 of reciprocating plunger pump plug-in mounting rotates, plunger 1 is move left and right under the effect of driving cam and spring 2, as shown in Figure 1, when plunger 1 is moved to the left, the seal space that the plunger 1 and the pump housing 3 are formed becomes big, form vacuum, fluid in the oil sump sucks through oil sucting one-way valve 16 under the barometric pressure effect, seal space diminishes when cam 18 promotion plungers 1 move right, the oil that has sucked is squeezed, and is discharged in the hydraulic system through oil extraction plug-in mounting one-way valve and goes, and cam 18 constantly moves, seal space periodically diminishes and increases, and finishes oil suction and oil extraction.

Claims

1. reciprocating plunger pump, comprise the pump housing, volute spring, plunger, oil sucting one-way valve and oil extraction one-way valve, there are a cam and plunger to hold, volute spring is positioned at pump housing outside, oil sucting one-way valve is made up of spool and valve body, the oil sucting one-way valve spool is by shutoff, guide rod, spring and spring stop piece constitute, it is characterized in that: the valve body of described oil sucting one-way valve is again simultaneously stifled at the bottom of the pump housing of described pump housing bottom, described its shutoff of oil sucting one-way valve spool is a hemisphere, described oil extraction one-way valve is a cartridge valve, and between the pump housing with polytetrafluoroethylsealed sealed circle and O RunddichtringO combination seal.

2. reciprocating plunger pump according to claim 1 is characterized in that: all there is the groove that matches with the spring end shape at the described plunger and the pump housing position that contacts with tapered spring.

3. reciprocating plunger pump according to claim 1 is characterized in that: stifled and hemisphere shutoff junction surface are hemisphere face at the bottom of the described pump housing, and have at least one through hole on the hemisphere face.

4. reciprocating plunger pump according to claim 1 is characterized in that: cylndrical surface, the described pump housing outside has rectangular through slot.

5. reciprocating plunger pump according to claim 1 is characterized in that: have a hole between described oil extraction one-way valve plug-in opening and plunger pump cavity volume.