CN205763417U - A kind of plungers pump plunger closing-in structure Closing in die - Google Patents

A kind of plungers pump plunger closing-in structure Closing in die Download PDF

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Publication number
CN205763417U
CN205763417U CN201620445786.2U CN201620445786U CN205763417U CN 205763417 U CN205763417 U CN 205763417U CN 201620445786 U CN201620445786 U CN 201620445786U CN 205763417 U CN205763417 U CN 205763417U
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China
Prior art keywords
cavity
closing
plunger
die
piston shoes
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CN201620445786.2U
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Chinese (zh)
Inventor
马维维
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JIANGSU YUANYE HYDRAULIC MACHINERY Co Ltd
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JIANGSU YUANYE HYDRAULIC MACHINERY Co Ltd
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Priority to CN201620445786.2U priority Critical patent/CN205763417U/en
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Abstract

This utility model relates to a kind of plungers pump plunger closing-in structure Closing in die, and including a Closing in die main body, described Closing in die main body is rectangular-shaped, and the medium position in Closing in die main body has the cavity that appearance piston shoes embed with plunger;Described cavity includes cavity A, cavity B, cavity C, cavity D and the cavity E being sequentially communicated, described cavity A and cavity B is collectively forming and holds the cavity that piston shoes embed, cavity B, cavity C, cavity D and cavity E are collectively forming and hold the cavity that plunger embeds, described cavity A is cylindrical shape, and cavity B is cylindrical shape, and cavity B gradually closes up to centre near one end of cavity C, cavity C is cylindrical shape, cavity D is round table-like, and little one end, aperture is connected with cavity C, and the cross section of cavity E takes the shape of the letter U shape.The utility model has the advantage of: utilize this Closing in die can close up with plunger for piston shoes after improving, and can realize disposably closing up successfully, substantially increase production efficiency.

Description

A kind of plungers pump plunger closing-in structure Closing in die
Technical field
This utility model relates to a kind of plunger displacement pump closing device, closes up particularly to a kind of plungers pump plunger closing-in structure Mould.
Background technology
Hydraulic pump provides a kind of Hydraulic Elements of fluid under pressure for hydraulic drive, is the one of pump.Its function is dynamic The mechanical energy of power machine (such as motor and internal combustion engine etc.) is converted into the pressure energy of liquid.Affect hydraulic pump service life factor very Many, except pump self design, the factor that manufactures are outer and some selections with pump use related elements (such as shaft coupling, oil filter etc.), Operations during trial run and run etc. also have relation.The operation principle of hydraulic pump is the change that motion brings pump chamber, thus Compression fluid makes fluid have pressure energy.
Plunger is the core component in plunger displacement pump, its with piston shoes parts with the use of.Piston shoes have a pocket, plunger circle Head is placed in this pocket, it is achieved plunger round end carries out rotational motion in pocket.And piston shoes mouth is open, therefore slide Closing in be coordinated between boots and plunger round end, shrinks plunger round end and realizes gap rotating function in piston shoes.And it is traditional Piston shoes and the general mode using Closing in die receipts to roll the most again that closes up of plunger, as shown in Figure 1 and Figure 2, it is ensured that piston shoes 1 and post The plug gap of 2 and freely rotatable, but this production efficiency is extremely low, and relatively costly, and it has been investigated that piston shoes 1 are received after death The most stuck, as shown in Figure 3 at A point.
Therefore, for above-mentioned phenomenon, now improving piston shoes, the medium position at the pocket of piston shoes has an annular Groove, the bore of annular groove is more than the bore of the round end section of plunger.For above-mentioned improved structure, existing needs work out a kind of receipts Mouth die closes up.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of plungers pump plunger that can disposably close up closing in knot Structure Closing in die.
For solving above-mentioned technical problem, the technical solution of the utility model is: a kind of plungers pump plunger closing-in structure is received Mouth die, described closing-in structure includes a plunger, and described plunger is by cylindrical section, round end section and connecting cylinder section and the arc of round end section Shape changeover portion collectively constitutes;One piston shoes, one end of described piston shoes has the pocket that an appearance plunger round end section embeds, described collecting Mouth is in interception shape, and the medium position at pocket has an annular groove, and the bore of annular groove is more than the round end section of plunger Bore, its innovative point is: described Closing in die includes
One Closing in die main body, described Closing in die main body is rectangular-shaped, and the medium position in Closing in die main body has an appearance The cavity that piston shoes embed with plunger;
Described cavity includes cavity A, cavity B, cavity C, cavity D and the cavity E being sequentially communicated, described cavity A and cavity B Being collectively forming and hold the cavity that piston shoes embed, cavity B, cavity C, cavity D and cavity E are collectively forming and hold the cavity that plunger embeds, institute Stating cavity A is cylindrical shape, and cavity B is cylindrical shape, and cavity B gradually closes up to centre near one end of cavity C, cavity C In cylindrical shape, cavity D is round table-like, and little one end, aperture is connected with cavity C, and the cross section of cavity E takes the shape of the letter U shape.
The utility model has the advantage of: in this utility model, utilize this Closing in die can for improve after piston shoes with Plunger closes up, and can realize disposably closing up successfully, and after piston shoes and plunger can be avoided to close up between occur stuck Phenomenon, substantially increases production efficiency.
Accompanying drawing explanation
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the schematic diagram of traditional piston shoes.
Fig. 2 is the schematic diagram of traditional plunger.
Fig. 3 is the structure after traditional piston shoes and plunger closing in.
Fig. 4 is the schematic diagram of piston shoes in the plungers pump plunger closing-in structure improved.
Fig. 5 is the I portion enlarged diagram of Fig. 4.
Fig. 6 is the schematic diagram of Closing in die of the present utility model.
Fig. 7 is the A-A sectional view of Fig. 6.
Detailed description of the invention
The following examples can make professional and technical personnel that this utility model is more fully understood, but the most therefore will This utility model is limited among described scope of embodiments.
A kind of plungers pump plunger closing-in structure Closing in die as shown in Figure 1, closing-in structure includes plunger and piston shoes 3.
Plunger is collectively constituted by the arc-shaped transition section 7 of cylindrical section 6, round end section 5 and connecting cylinder section 6 with round end section 5, circle Shell of column 6, in cylindrical shape, has a cylindrical cavity in cylindrical section 6, round end section 5 in interception shape, simultaneously round end section 5 with There is in changeover portion 7 the through hole A9 being connected with cylindrical cavity.
One end of piston shoes 3 has the pocket 8 that the round end section 5 of an appearance plunger embeds, and this pocket 8, in interception shape, is being slided The other end of boots 3 has a through hole B10 being connected with this pocket 8, and this through hole B10 is corresponding with through hole A9, at pocket The medium position of 8 has an annular groove 4, as it is shown in figure 5, the bore of annular groove 4 is more than the bore of the round end section 7 of plunger. Utilize this annular groove 4, when piston shoes and plunger close up, thus after effectively avoiding piston shoes and plunger to close up between occur stuck Phenomenon.
As shown in Figure 6, Closing in die includes a Closing in die main body 10, and Closing in die main body 10 is in rectangular-shaped, Closing in die master The medium position of body 10 has the cavity that appearance piston shoes embed with plunger.
As it is shown in fig. 7, cavity includes cavity A11, cavity B12, cavity C 13, cavity D 14 and the cavity E15 being sequentially communicated, Cavity A11 and cavity B12 is collectively forming and holds the cavity that piston shoes 3 embed, and cavity B12, cavity C 13, cavity D 14 and cavity E15 are altogether Holding, with being formed, the cavity that plunger embeds, cavity A11 is cylindrical shape, and cavity B12 is cylindrical shape, and cavity B12 is near cavity Gradually closing up to centre in one end of C13, cavity C 13 is in cylindrical shape, and cavity D 14 is in round table-like, and little one end, aperture is with empty Chamber C13 is connected, and the cross section of cavity E15 takes the shape of the letter U shape.
Skilled person will appreciate that of the industry, this utility model is not restricted to the described embodiments, above-described embodiment and Described in description, principle of the present utility model is simply described, on the premise of without departing from this utility model spirit and scope, This utility model also has various changes and modifications, and these changes and improvements both fall within claimed this utility model scope In.This utility model claims scope and is defined by appending claims and equivalent thereof.

Claims (1)

1. a plungers pump plunger closing-in structure Closing in die, described closing-in structure includes a plunger, described plunger by cylindrical section, Round end section and connecting cylinder section collectively constitute with the arc-shaped transition section of round end section;One piston shoes, one end of described piston shoes has one Holding the pocket that plunger round end section embeds, described pocket is interception shape, and the medium position at pocket has an annular groove, The bore of annular groove is more than the bore of the round end section of plunger, it is characterised in that: described Closing in die includes
One Closing in die main body, described Closing in die main body is rectangular-shaped, and the medium position in Closing in die main body has appearance piston shoes The cavity embedded with plunger;
Described cavity includes cavity A, cavity B, cavity C, cavity D and the cavity E being sequentially communicated, and described cavity A is common with cavity B Being formed and hold the cavity that piston shoes embed, cavity B, cavity C, cavity D and cavity E are collectively forming and hold the cavity that plunger embeds, described sky Chamber A is cylindrical shape, and cavity B is cylindrical shape, and cavity B gradually closes up to centre near one end of cavity C, and cavity C is circle Bar shape, cavity D is round table-like, and little one end, aperture is connected with cavity C, and the cross section of cavity E takes the shape of the letter U shape.
CN201620445786.2U 2016-05-17 2016-05-17 A kind of plungers pump plunger closing-in structure Closing in die Active CN205763417U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620445786.2U CN205763417U (en) 2016-05-17 2016-05-17 A kind of plungers pump plunger closing-in structure Closing in die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620445786.2U CN205763417U (en) 2016-05-17 2016-05-17 A kind of plungers pump plunger closing-in structure Closing in die

Publications (1)

Publication Number Publication Date
CN205763417U true CN205763417U (en) 2016-12-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106694712A (en) * 2016-12-16 2017-05-24 内蒙古机集团瑞特精密工模具有限公司 Special die for closing double-end spherical hinge ball pin shell
CN109201899A (en) * 2017-12-03 2019-01-15 中国航空工业集团公司北京航空精密机械研究所 A kind of plunger assembly seat end closing device and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106694712A (en) * 2016-12-16 2017-05-24 内蒙古机集团瑞特精密工模具有限公司 Special die for closing double-end spherical hinge ball pin shell
CN109201899A (en) * 2017-12-03 2019-01-15 中国航空工业集团公司北京航空精密机械研究所 A kind of plunger assembly seat end closing device and method
CN109201899B (en) * 2017-12-03 2020-06-12 中国航空工业集团公司北京航空精密机械研究所 Plunger assembly seat end closing device and method

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