CN102889205A

CN102889205A - Cylinder body structure for high-pressure plunger pump

Info

Publication number: CN102889205A
Application number: CN2011102041939A
Authority: CN
Inventors: 游礼福
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-21
Filing date: 2011-07-21
Publication date: 2013-01-23

Abstract

The invention discloses a cylinder body structure for a high-pressure plunger pump, which is cooperated with a plurality of pistons, wherein the cylinder structure comprises a body and a plurality of wear-resisting layers; the body is concavely provided with a plurality of containing slots; the plural wear-resisting layers are correspondingly arranged on each containing slot; the surrounding edge of the bottom of the containing slot of the body is expanded to form a concave part, and an annular groove is concavely arranged; one flange is formed by the wear-resisting layer and is concavely-convexly cooperated with the concave part; an abutting edge is formed to be concavely-convexly cooperated with the annular groove; one piston is contained in the containing slot and is matched with the wear-resisting layer; therefore, the wear-resisting layer and the body are concavely-convexly cooperated, clamped and fixed; as the wear-resisting layers are arranged between the containing slots of the body of the cylinder body structure and the pistons, the pressure resistance and the abrasion resistance of the cylinder body structure can be improved; the abrasion on the cylinder body structure when the piston quickly moves can be lowered; and complex processing working procedures or precise modules are omitted. The cylinder body structure for the high-pressure plunger pump has the advantages of low manufacture cost, high forming speed and the like.

Description

The housing structure of high-pressure plunger pump

Technical field

The present invention relates to a kind of oil-hydraulic cylinder, particularly relate to a kind of housing structure of high-pressure plunger pump.

Background technique

Please cooperate and consult shown in Figure 1ly, show a kind of known bimetallic cylinder structure 10 for high-pressure plunger pump; This cylinder body has body 11 and a bronze medal layer structure 12, this body 11 is by steel or the made seven apertures in the human head housing structure of iron, these body 11 central authorities offer one group and establish mouth 111, and establish mouthful 111 all sides intervals in this group and be concaved with seven tanks 112, respectively these tank 112 bottoms offer a runner 113, and this tank 112 runs through this body 11 two ends end faces with this runner 113; This copper layer structure 12 cooperates die casting, be configured as one-body molded laminate structure and comply with these body 11 Inside space forms, as shown in Figure 1, this copper layer structure 12 extends to this tank 112 bottoms from the cell wall of these tank 112 openings respectively, and extends to cover to these body 11 end faces through this runner 113 respectively and form stephanoporate dull and stereotyped sheet structure.

Wherein, respectively this tank 112 of this body 11 is for inserting fluid and a piston (not shown), makes this piston back and forth do in this tank 112 is interior, flows out from this runner 113 to push this fluid; For avoiding this copper layer structure 12 to break away from this body 11 because of the piston reciprocating displacement, simultaneously in order to reduce the friction between this piston and this body 11, and in steel body 11 inner spaces and this integrated copper layer structure 12 of end face casting formation; Yet, commonly use housing structure and be and reach one-body molded copper layer structure 12 and must be with the manufacture of die casting, not only its technology has the difficult degree, its molding time is also longer, and the casting mould that cooperates, if general mould then still needs to reduce manufacturing efficiency through repeatedly repairing the operation of processing after the moulding; If reduce the finishing process behind the casting, namely must cooperate precision die, also so that manufacture cost increases relatively, therefore, commonly use the space that the bimetallic cylinder structure still has improvement.

Summary of the invention

The technical problem to be solved in the present invention provides a kind of housing structure of high-pressure plunger pump.This housing structure is simple, moulding quick, manufacture cost is supported.

For solving the problems of the technologies described above, the housing structure of high-pressure plunger pump of the present invention, this housing structure cooperate several pistons to use; Wherein, this housing structure comprises:

Body is selected from the cylindrical-shaped structure that steel or iron makes and has two ends, and this body center offers a port and runs through two ends, and defining this port, to offer direction be one axial; This body in this port week the side interval axially be concaved with several tanks along this, respectively this tank is provided with one to the recess and of this body expansion along this ring groove that axially is arranged with in its bottom peripheral edge; And respectively a runner is offered in this tank bottom, and respectively this tank and its bottom flow passage run through this body two ends;

A plurality of wearing layers, to this tank quantity and structural form setting that should body, and this wearing layer is by the laminated metal structure that is selected from copper iron pairing gold, alloyed copper, alloyed steel or nonferrous metal and makes; This wearing layer correspondence this recess of this tank flange that is shaped respectively respectively, and this ring groove that should tank is shaped one supports edge; Order wherein this wearing layer is fixedly arranged on wherein this tank cell wall, and this flange cooperates with this recess is concavo-convex, should support edge and be placed in this ring groove, and this piston is placed in this tank and this wearing layer is fitted.

By this, the present invention sees through this wearing layer, and clip is fixed with this body formation concave-convex fit structure, make between this body tank of housing structure and this piston and have this iron or copper wearing layer, reach and improve this housing structure crushing resistance and abrasion resistance, and when reducing this piston and doing fast for the friction of housing structure; Simultaneously, the manufacturing procedure that this housing structure provided by the present invention need not be complicated also needn't be used precision die, and have manufacture cost lower, be easy to the advantages such as moulding manufacturing, moulding be quick.

Description of drawings

The present invention is further detailed explanation below in conjunction with accompanying drawing and embodiment:

Fig. 1 is the three-dimensional cross-sectional schematic of the housing structure of known high-pressure plunger pump;

Fig. 2 is the three-dimensional cross-sectional schematic of the housing structure of high-pressure plunger pump of the present invention;

Fig. 3 is the cross-sectional schematic of Fig. 2;

Fig. 4 is the local enlarged diagram of Fig. 3;

Fig. 5 is the local enlarged diagram of another structure sample attitude of circular rabbet of Fig. 4 housing structure.

Description of reference numerals is as follows among the figure:

Known part:

Bimetallic cylinder structure 10 bodies 11

12 groups on copper layer structure establishes mouthfuls 111

Tank 112 runners 113

Part of the present invention:

Body 20 flow end faces 201

Port 21 tanks 22

Recess 221 ring grooves 222

Runner 23

Wearing layer 30 flanges 31

Support edge 32

Pad 40 perforation 41

Runner hole 42

Piston 50

Axial X

Embodiment

Further understand and understanding for having purpose of the present invention, feature and effect, now cooperate accompanying drawing and reference character, details are as follows:

At first, please cooperate Fig. 3 to see it with Fig. 2, the preferred embodiment of the housing structure of a kind of high-pressure plunger pump provided by the present invention, this housing structure comprises body 20, a plurality of wearing layer 30 and a pad 40, and this housing structure is for cooperating several pistons 50; Wherein:

This body 20 is selected from the cylindrical-shaped structure that steel or iron makes and has two ends, and these body 20 central authorities offer a port 21 and run through two ends, and defining this port 21, to offer direction be an axial X; And this body 20 is concaved with several tanks 22 in these port 21 all sides intervals along this axial X, respectively this tank 22 is provided with a ring groove 222 that is arranged with along this axial X to the recess 221 of this body 20 expansions and in its bottom peripheral edge, and respectively these tank 22 bottoms are offered a runner 23 and run through this body 20 two ends; Defining the end face that this body 20 runs through for this runner 23 is a flow end face 201; In the present embodiment, this body 20 has seven tanks 22, and respectively this tank 22 is cylindric space for being equipped with a piston 50;

These a plurality of wearing layers 30, by the laminated metal structure that is selected from copper iron pairing gold, alloyed copper, alloyed steel or nonferrous metal and makes, and to quantity and the structural form setting thereof of this tank 22 that should body 20; These wearing layer 30 correspondences this recess 221 of this tank 22 flange 31 that is shaped respectively respectively, and this ring groove 222 that should tank 22 is shaped one supports edge 32; Order wherein this wearing layer 30 is fixedly arranged on wherein these tank 22 cell walls, respectively this ring flange 31 is with these 221 concavo-convex cooperations of circular rabbet respectively and clip is fixed, should support edge 32 and be placed in this ring groove 222, and this wearing layer 30 makes this piston 50 and this wearing layer 30 fit between this tank 22 and this piston 50;

In the present embodiment, as shown in Figure 3, the rectangular annular space of respectively these recess 221 sections of this body 20; Respectively 31 pairs of this flanges of this wearing layer 30 should recess 221 shapes be configured as the rectangular annular flange flange of section; In addition, as shown in Figure 4, respectively this recess 221 of this body 20 is that this forms an annular conical surface structure that is recessed into towards this tank 22 from the expansion of tank 22 bottom peripheral edge; Respectively 31 pairs of this flanges of this wearing layer 30 should recess 221 shapes be configured as the annular flange flange that section is dihedral;

This pad 40 by the metal porous laminated structure of copper, is fixedly arranged on this flow end face 201 of this body 20, and this port 21 that should body 20 is offered a perforation 41, and corresponding respectively 23 of this runners offer the runner hole 42 of relative populations.

The above is embodiment of the invention main member and configuration explanation thereof, as for manufacture method and the effect thereof of preferred embodiment of the present invention, does following explanation.

Please cooperate again and consult Fig. 2, shown in Figure 3, this housing structure arranges this wearing layer 30 between this tank 22 of this body 20 and this piston 50, improve this housing structure crushing resistance and abrasion resistance to reach, and when reducing this piston 50 and doing fast for the friction of housing structure;

Housing structure provided by the present invention forms these body 20 precastings the tank 22 with this recess 221 and this ring groove 222, and offers the runner 23 that connects this body 20 in these tank 22 bottoms; Then insert the smaller or suitable pipe fitting in an external diameter and this tank 22 grooves footpath, this pipe fitting is iron pipe or copper pipe; Make in the ring groove 222 of these accommodating these tank 22 bottoms of pipe fitting one end periphery contact, execute a strength in this pipe fitting, make this pipe fitting one end periphery be subjected to this strength and this tank 22 bottom surface co-extrusion shapes to become an irregular header structure;

Then, with a mould to the inner irregular header structure punch process of this copper pipe, the then stressed extruding of this header structure and entirely to this pipe fitting external diameter expansion and embed and to be filled in this recess 221, this pipe fitting forms wearing layer 30 that should tank 22 shapes, this header structure forms this flange 31, and this wearing layer 30 is fixed with these body 20 clips, avoids this wearing layer 30 to do fast displacement because of this piston 50; Corresponding piston 50 sizes again to these wearing layer 30 inwall Milling Process, make these wearing layer 30 inwalls and this wearing layer 30 more smooth with these tank 22 bottom connection places at last, use to form a smooth smoothly space and back and forth do for this piston 50.

In sum, the housing structure of high-pressure plunger pump provided by the present invention because manufacture method is simple and manufacturing procedure that need not be complicated, also needn't uses precision die, and have the advantages such as manufacture cost is lower, moulding is quick.

Claims

1. the housing structure of a high-pressure plunger pump, this housing structure cooperate several pistons to use, and it is characterized in that: described housing structure comprises:

2. housing structure as claimed in claim 1, it is characterized in that: the end face that this body of described definition runs through for this runner is a flow end face; This housing structure comprises that also a pad is located at this flow end face, and this pad offers a perforation to this port that should body, and corresponding respectively this runner offers the runner hole of relative populations.

3. housing structure as claimed in claim 1 is characterized in that: the rectangular annular space of respectively this recess section of described body; Respectively this flange of this wearing layer is to should recess shapes being configured as the rectangular annular flange flange of section.

4. housing structure as claimed in claim 1 is characterized in that: respectively this recess of described body forms towards the recessed annular conical surface structure of this tank from the expansion of tank bottom peripheral edge for this; Respectively this flange of this wearing layer is to should recess shapes being configured as the annular flange flange that section is dihedral.