CN2635938Y

CN2635938Y - Plunger pump

Info

Publication number: CN2635938Y
Application number: CN 03272961
Authority: CN
Inventors: 孙浩
Original assignee: Beijing Zhongkuang Electromechanical Engineering Technology Institute
Current assignee: Beijing Zhongkuang Electromechanical Engineering Technology Institute
Priority date: 2003-06-13
Filing date: 2003-06-13
Publication date: 2004-08-25
Anticipated expiration: 2013-06-13

Abstract

The utility model relates to a plunger pump for bulk materials, which comprises a drive mechanism, a piston, a cylinder body, a hopper and a discharge mechanism, wherein the drive mechanism is provided with at least two output ends so as to be respectively connected with the piston and the cylinder body, thus making the piston and the cylinder body capable of moving backwards and forwards separately. Being driven by the drive mechanism, the piston can move backwards and forwards inside the cylinder body which, driven by the drive mechanism, can move backwards and forwards inside the hopper. The discharge mechanism is installed in this hopper on a side opposite to another side where the cylinder body is installed and at a position directly opposite to the cylinder body. The materials that need to be pumped are loaded into the cylinder body through the movement of the cylinder body in the hopper and then are pumped out through the discharge mechanism by the movement of the piston in the cylinder body.

Description

Plunger pump

Technical field

The utility model relates to a kind of plunger pump, especially relates to the plunger pump of the relatively poor material of energy pumping flowability.

Background technique

At present, the know-why of existing pumping all is that cylinder body maintains static, and makes generation negative pressure in the cylinder body by the mobile of piston (or plunger), thereby need suck in the cylinder body by the pumping material, by piston (or plunger) moving in cylinder body it is pumped again.Yet can only the pumping mobile better and imporous material of existing plunger pump, and can not relatively poor material and the bulk material of pumping flowability, make its application that significant limitation be arranged.

Summary of the invention

The purpose of this utility model is to provide a kind of plunger pump, this pump not only can the pumping flowability material preferably, and can pumping mobile relatively poor material and bulk material.

For realizing the purpose of this utility model, the utility model provides a kind of plunger pump, and it comprises driving mechanism, piston, cylinder body, hopper and discharging mechanism.Wherein this driving mechanism has two output terminals at least, so that connect with piston and cylinder body respectively, and makes piston or cylinder body independently to-and-fro motion separately.This piston can move reciprocatingly in cylinder body under the driving of driving mechanism, and this cylinder body can move reciprocatingly in hopper under the driving of driving mechanism, over against cylinder body a discharging mechanism is housed on this hopper side relative with the side that cylinder body is housed.Need the pumping material pack in the cylinder body by the motion of cylinder body in hopper, need pump via discharging mechanism by the pumping material by piston moving in cylinder body again.

By adopting technique scheme, plunger pump of the present utility model can not only the pumping flowability material preferably, and, can also pumping mobile relatively poor material and bulk material.

Description of drawings

Below by preferred embodiment and accompanying drawing plunger pump of the present utility model is elaborated,

In the accompanying drawing:

Fig. 1 is the structure principle chart of the utility model plunger pump.

Embodiment

As shown in Figure 1, the utility model plunger pump comprises a driving mechanism 1, piston 2, cylinder body 3, hopper 4 and a discharging mechanism 5.

This driving mechanism 1 is a reciprocating mechanism, and in preferred embodiment of the present utility model, this driving mechanism can be a kind of in oil hydraulic cylinder, cylinder, gear rack, crank block, spiral, the linear electric motor.This driving mechanism 1 has at least two independently output terminals, so that connect with piston 2 and cylinder body 3 respectively, thereby not only can single driving piston 2 and cylinder body 3 in one, also driven plunger 2 and cylinder body 3 simultaneously, and make piston 2 or cylinder body 3 independently to-and-fro motion separately.This piston 2 is contained in the cylinder body 3, and the one end connects with an output terminal of driving mechanism 1 and can move reciprocatingly in cylinder body 3 under the driving of driving mechanism 1.The housing that this cylinder body 3 passes hopper 4 one sides is contained in hopper 4 inside movably, the housing of hopper 4 defines cylinder body 3 and can only or pivot at axially reciprocating, simultaneously, another output terminal of the outer end of this cylinder body 3 and driving mechanism 1 links and can move reciprocatingly in hopper 4 under the driving of driving mechanism 1.When cylinder body 3 moves to low order end, contact and rely on pressure to produce sealing effect with hopper 4.In this hopper 4 material that is pumped is housed.Over against cylinder body 3 discharging mechanism 5 is housed on this hopper 4 side relative with the side that cylinder body 3 is housed.In preferred embodiment of the present utility model, this discharging mechanism 5 can be various valves, as ball valve, gate valve, butterfly valve etc., also can directly be the part of conveyance conduit.In addition, in preferred embodiment of the present utility model, driving mechanism 1, piston 2, cylinder body 3, hopper 4 and discharging mechanism 5 all are horizontal arrangement, but, they also can be to become certain angle of inclination to arrange with horizontal position, even can be to be arranged vertically, thereby make the pumping campaign to carry out in all angles.

The working procedure of the utility model plunger pump is: at first, piston 2 keeps motionless, cylinder body 3 need pumping material in contacting with discharging mechanism 5 and rely on pressure to produce sealing effect, being about in the hopper 4 in the process that cylinder body 3 moves right of (towards the direction of discharging mechanism 5) motion to the right under driving mechanism 1 drives is packed in the cylinder body 3; Then, cylinder body 3 keeps motionless, and piston 2 is (towards the direction of discharging mechanism 5) motion to the right under the driving of driving mechanism 1, thereby the need pumping material in the cylinder body 3 is pumped via discharging mechanism 5; At last, under the driving of driving mechanism 1, cylinder body 3 and piston 2 are all return initial position, fill vacancy and finish a work cycle thereby the need pumping material when piston 2 and cylinder body 3 are return in the hopper 4 falls, in returning the initial position process, can be that piston 2 is return synchronously with cylinder body 3, also piston 2 be return earlier and is return behind the cylinder body 3, but generally can not be that cylinder body 3 is return earlier.

Claims

1. plunger pump, it comprises driving mechanism, piston, cylinder body, hopper and discharging mechanism, it is characterized in that: this piston one end connects with driving mechanism and can be contained in the cylinder body with moving axially, the housing that this cylinder body passes hopper is contained in the hopper movably, its outer end connects with driving mechanism, this is equipped with a discharging mechanism this hopper opposite side relative with cylinder body one side is housed, to need the material of pumping to pack in the cylinder body by the motion of cylinder body in hopper, will need the material of pumping to pump by piston moving in cylinder body again via discharging mechanism.

2. plunger pump as claimed in claim 1 is characterized in that: being equipped with in the hopper body can axially movable cylinder body, and being equipped with in this cylinder body can axially movable piston.

3. plunger pump as claimed in claim 1 is characterized in that: this driving mechanism have at least two independently output terminal to link with piston and cylinder body respectively.

4. plunger pump as claimed in claim 1 is characterized in that: this driving mechanism can be a kind of in oil hydraulic cylinder, cylinder, gear rack, crank block, spiral, the linear electric motor.