CN205779644U - A kind of plungers pump plunger closing-in structure - Google Patents
A kind of plungers pump plunger closing-in structure Download PDFInfo
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- CN205779644U CN205779644U CN201620445789.6U CN201620445789U CN205779644U CN 205779644 U CN205779644 U CN 205779644U CN 201620445789 U CN201620445789 U CN 201620445789U CN 205779644 U CN205779644 U CN 205779644U
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- plunger
- piston shoes
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- round end
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Abstract
This utility model relates to a kind of plungers pump plunger closing-in structure, and including a plunger, described plunger is collectively constituted by the arc-shaped transition section of cylindrical section, round end section and connecting cylinder section with round end section；One piston shoes, one end of described piston shoes has the pocket that an appearance plunger round end section embeds, and described pocket is interception shape, and the medium position at pocket has an annular groove.The utility model has the advantage of: by increasing by an annular groove at the pocket of piston shoes, utilize this annular groove, when piston shoes close up with plunger, thus between after effectively avoiding piston shoes and plunger to close up, stuck phenomenon occurs, can realize disposably closing up successfully simultaneously, substantially increase production efficiency.
Description
Technical field
This utility model relates to a kind of plunger displacement pump, particularly to a kind of plungers pump plunger closing-in structure.
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.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of plungers pump plunger closing-in structure, it is possible to effectively place
Piston shoes and the generation of plunger stuck phenomenon.
For solving above-mentioned technical problem, the technical solution of the utility model is: a kind of plungers pump plunger closing-in structure, its wound
New point is: include
One plunger, described plunger is common with the arc-shaped transition section of round end section by cylindrical section, round end section and connecting cylinder section
Composition；
One piston shoes, one end of described piston shoes has the pocket that an appearance plunger round end section embeds, and described pocket is interception
Shape, the medium position at pocket has an annular groove.
Further, the bore of described annular groove is more than the bore of the round end section of plunger.
The utility model has the advantage of: in this utility model, by increasing by an annular groove at the pocket of piston shoes,
Utilize this annular groove, when piston shoes and plunger close up, thus after effectively avoiding piston shoes and plunger to close up between occur stuck
Phenomenon, simultaneously can realize disposably closing up successfully, substantially increase 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 plungers pump plunger closing-in structure of the present utility model.
Fig. 5 is the I portion enlarged diagram of Fig. 4.
Fig. 6 is the schematic diagram of plunger in this utility model.
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 as Figure 4-Figure 6, including plunger and piston shoes 3.
As shown in Figure 6, plunger is by cylindrical section 6, round end section 5 and connecting cylinder section 6 and the arc-shaped transition section 7 of round end section 5
Collectively constituting, cylindrical section 6, in cylindrical shape, has a cylindrical cavity in cylindrical section 6, and round end section 5, in interception shape, exists simultaneously
Round end section 5 with there is in changeover portion 7 the through hole A9 being connected with cylindrical cavity.
As shown in Figure 4, 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 is in cutting
Spherical, the other end at piston shoes 3 has a through hole B10 being connected with this pocket 8, and this through hole B10 is relative with through hole A9
Should, the medium position at pocket 8 has an annular groove 4, as it is shown in figure 5, the bore of annular groove 4 is more than the round end of plunger
The bore of section 7.Utilize this annular groove 4, when piston shoes and plunger close up, thus after effectively avoiding piston shoes to close up with plunger it
Between stuck phenomenon occurs.
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 (2)
1. a plungers pump plunger closing-in structure, it is characterised in that: include
One plunger, described plunger is collectively constituted by the arc-shaped transition section of cylindrical section, round end section and connecting cylinder section with round end section；
One piston shoes, one end of described piston shoes has the pocket that an appearance plunger round end section embeds, and described pocket is interception shape,
The medium position of pocket has an annular groove.
Plungers pump plunger closing-in structure the most according to claim 1, it is characterised in that: the bore of described annular groove is more than
The bore of the round end section of plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620445789.6U CN205779644U (en) | 2016-05-17 | 2016-05-17 | A kind of plungers pump plunger closing-in structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620445789.6U CN205779644U (en) | 2016-05-17 | 2016-05-17 | A kind of plungers pump plunger closing-in structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205779644U true CN205779644U (en) | 2016-12-07 |
Family
ID=58118387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620445789.6U Active CN205779644U (en) | 2016-05-17 | 2016-05-17 | A kind of plungers pump plunger closing-in structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205779644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441797A (en) * | 2018-11-27 | 2019-03-08 | 江苏徐工工程机械研究院有限公司 | Sliding shoe for axial plunger pump or motor |
-
2016
- 2016-05-17 CN CN201620445789.6U patent/CN205779644U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441797A (en) * | 2018-11-27 | 2019-03-08 | 江苏徐工工程机械研究院有限公司 | Sliding shoe for axial plunger pump or motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |