CN203584796U - Radial plunger pump - Google Patents
Radial plunger pump Download PDFInfo
- Publication number
- CN203584796U CN203584796U CN201320830759.3U CN201320830759U CN203584796U CN 203584796 U CN203584796 U CN 203584796U CN 201320830759 U CN201320830759 U CN 201320830759U CN 203584796 U CN203584796 U CN 203584796U
- Authority
- CN
- China
- Prior art keywords
- plunger
- ring
- circumferential edge
- pump
- pump shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 1
Images
Landscapes
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The utility model discloses a radial plunger pump of which the plunger structure does not move before a first portion is compressed onto a second portion and does not eject upwards from the mounting surface of the second portion in order to bring convenience to assembly and increase the assembly efficiency and accuracy. The radial plunger pump comprises a plunger (4), wherein one end of the plunger (4) is pressed against the outer surface of a top ring (7) driven by using a pump shaft (10); a limiting ring (8) for axially limiting one end of the plunger (4) is arranged above the top ring (7), and is sleeved on the pump shaft (10) for fixing; the circumferential edge of the limiting ring (8) project out of the circumferential edge of the top ring (7); a flange (9) extends downwards from the circumferential edge of the limiting ring (8).
Description
Technical field
The utility model relates to pump technical field, is specifically a kind of radial plunger pump.
Background technique
Prior art radial plunger pump, it comprises by first portion and second portion and is connected to form up and down the oil sucting cavity between first portion and second portion, the piston structure that is arranged in oil sucting cavity and circumferentially distributes along oil sucting cavity, this piston structure comprises, spring housing on plunger and spring and plunger offset, the plunger bushing of piston structure is installed described spring and spring and plunger bushing and is offseted, spring is compressive state, one end of described plunger is for offseting with the apical ring outer surface of pump shaft drive, the method of existing erection column plug structure is first by the spring precompression of piston structure, then piston structure is placed on second portion attachment face, follow trip spring, now, the apical ring outer surface that one end of plunger and pump shaft drive offsets, plunger remainder heads on spring, spring heads on plunger bushing again, plunger bushing is undertaken radially spacing to share the power of spring by second portion attachment face, after placing each piston structure, first portion is connected up and down and makes plunger bushing be compressed and be arranged on second portion by first portion with second portion again, it is first portion, plunger bushing, second portion three-decker is fixed together, so far complete assembling, the definite installation method of said structure makes piston structure easily displacement before plunger bushing is arranged on second portion by first portion's compression, even from second portion attachment face, upspring to send as an envoy to and install unsuccessfully, such as one end of described plunger upwards skids off from apical ring outer surface, not only assembling inconvenience, and efficiency of assembling is lower, precision is poor.
Model utility content
The technical problems to be solved in the utility model is, provide a kind of piston structure to be difficult for displacement before plunger bushing is arranged on second portion by first portion's compression, and the radial plunger pump that can not pop up from second portion attachment face, thereby be convenient to assemble and improve efficiency of assembling and precision.
The technical solution of the utility model is, the utility model radial plunger pump, it comprises plunger, the apical ring outer surface that one end of plunger and pump shaft drive offsets, apical ring top is provided with the limited ring for the one end described in axial limiting, limited ring is sleeved on pump shaft and fixes, and the circumferential edge of described limited ring protrudes from apical ring circumferential edge, and the circumferential edge of limited ring is extended a flange downwards.
Adopt after said structure, the utility model compared with prior art, have the following advantages: described flange stretches out as eaves, radially forming a ring surface of keeping out axial displacement, one end of the plunger of mounted piston structure can upwards not skidded off from apical ring outer surface, so the utlity model has piston structure, before being arranged on second portion by first portion's compression, plunger bushing is difficult for displacement, and the advantage that can not pop up from second portion attachment face, thereby be convenient to assemble and improve efficiency of assembling and precision.
As improvement, pump shaft is provided with limited ring is compressed to the step surface that is arranged on apical ring upper surface, and this structure is convenient to dismounting limited ring, and compact structure.
Accompanying drawing explanation
Fig. 1 is the sectional view of a kind of radial plunger pump of the utility model.
Shown in figure, 1, first portion, 2, second portion, 3, oil sucting cavity, 4, plunger, 5, plunger bushing, 6, spring, 7, apical ring, 8, limited ring, 9, flange, 10, pump shaft, 11, step surface.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The utility model radial plunger pump, it comprises by first portion 1 and second portion 2 and is connected to form up and down the oil sucting cavity 3 between first portion 1 and second portion 2, the piston structure that is arranged in oil sucting cavity 3 and circumferentially distributes along oil sucting cavity 3, this piston structure comprises, spring 6 is enclosed within on plunger 4 and spring 6 offsets with plunger 4, the plunger bushing 5 of piston structure is installed by described spring 6 and spring 6 offsets with plunger bushing 5, spring 6 is compressive state, apical ring 7 outer surfaces that one end of plunger 4 and pump shaft 10 drive offset, apical ring 7 tops are provided with the limited ring 8 for the one end described in axial limiting, limited ring 8 is sleeved on pump shaft 10 and fixes, the circumferential edge of described limited ring 8 protrudes from apical ring 7 circumferential edge, and the circumferential edge of limited ring 8 is extended a flange 9 downwards.
In this example, pump shaft 10 is provided with limited ring 8 is compressed to the step surface 11 that is arranged on apical ring 7 upper surfaces, and described limited ring 8 is sleeved on pump shaft 10 and fixes.
Claims (2)
1. a radial plunger pump, it comprises plunger (4), apical ring (7) outer surface that one end of plunger (4) and pump shaft (10) drive offsets, it is characterized in that, apical ring (7) top is provided with the limited ring (8) for the one end described in axial limiting, limited ring (8) is sleeved on pump shaft (10) and goes up and fix, and the circumferential edge of described limited ring (8) protrudes from apical ring (7) circumferential edge, and the circumferential edge of limited ring (8) is extended a flange (9) downwards.
2. radial plunger pump according to claim 1, is characterized in that, pump shaft (10) is provided with limited ring (8) is compressed to the step surface (11) that is arranged on apical ring (7) upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320830759.3U CN203584796U (en) | 2013-12-16 | 2013-12-16 | Radial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320830759.3U CN203584796U (en) | 2013-12-16 | 2013-12-16 | Radial plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584796U true CN203584796U (en) | 2014-05-07 |
Family
ID=50582728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320830759.3U Expired - Lifetime CN203584796U (en) | 2013-12-16 | 2013-12-16 | Radial plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584796U (en) |
-
2013
- 2013-12-16 CN CN201320830759.3U patent/CN203584796U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |