CN203362429U - Variable type axial swash plate plunger pump - Google Patents
Variable type axial swash plate plunger pump Download PDFInfo
- Publication number
- CN203362429U CN203362429U CN 201320395513 CN201320395513U CN203362429U CN 203362429 U CN203362429 U CN 203362429U CN 201320395513 CN201320395513 CN 201320395513 CN 201320395513 U CN201320395513 U CN 201320395513U CN 203362429 U CN203362429 U CN 203362429U
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- plunger
- oil
- swash plate
- pump
- valve
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Abstract
The utility model discloses a variable type axial swash plate plunger pump. The variable type axial swash plate plunger pump comprises a pump body. A plunger is arranged in the pump body. A swash plate is arranged at the oil inlet end of the plunger. An oil distribution disc is arranged at the end, located at the oil extraction end of the plunger, of the pump body. An inlet valve and an outlet valve are arranged on the air inlet and the oil extraction opening of the plunger respectively. Oil sealing balls are arranged in both the inlet valve and the outlet valve. A reset spring is arranged between the inlet valve and the outlet valve. The oil sealing balls are zirconia ceramic balls. The variable type axial swash plate plunger pump is simple in structure, reasonable in design, stable in performance and long in service life, maintenance cost of a pulser can be reduced, and the service life of a one-way valve can be prolonged.
Description
Technical field
The utility model relates to a kind of oblique plate plunger pump, is specifically related to the axial oblique plate plunger pump of a kind of variable displacement.
Background technique
At present, plunger pump traditionally has two kinds of bent axis type axial piston pump and d-axis swash plate plunger pumps, because of its volume of bent axis type axial piston pump large, because of inhomogeneous in the stressed extreme of when work inclined shaft and to the intensity of inclined shaft and toughness reguirements, therefore can't be applied to exceedingly odious pulser underground work environment, and conventional d-axis swash plate plunger pump if plunger or one-way valve occur than galling in the course of the work, the work that plunger pump just can't provide enough pump oil masses directly to affect instrument causes the pulser underground work time shorter, greatly increased the maintenance cost of pulser, logging cost.In addition, the pearl of the one-way valve oil sealing in existing plunger pump is being worked under high frequency very much, the steel ball that common hardness is low, plastic deformation very easily occurs and can't play the effect of one-way valve in steel ball in the course of the work, and the toughness drop of the higher words steel ball of hardness, valve seat and steel ball all can be damaged, and can directly affect the normal operation of instrument, affect working efficiency.
Summary of the invention
The purpose of this utility model is exactly the defect existed for prior art, provides a kind of simple in structure, reasonable in design, stable performance, and long service life, can reduce the maintenance cost of pulser, can improve the axial oblique plate plunger pump of variable displacement in the working life of one-way valve.
Its technological scheme is: the axial oblique plate plunger pump of variable displacement, comprise the pump housing, be provided with plunger in the described pump housing, the oil inlet end of described plunger is provided with swash plate, the oil extraction end that one end of the described pump housing is positioned at plunger is provided with oil distribution casing, and the filler opening of described plunger and oil drain out place are provided with respectively inlet valve and outlet valve, are equipped with the oil sealing pearl in described inlet valve and outlet valve, be provided with return spring between described inlet valve and outlet valve, described oil sealing pearl is the zirconia ceramics pearl.
Described oil distribution casing is connected by locating stud with the pump housing.
The utility model compared with prior art, has the following advantages: simple in structure, reasonable in design, and stable performance, long service life, can reduce the maintenance cost of pulser, the working life that can improve one-way valve.
The accompanying drawing explanation
Fig. 1 is a kind of embodiment's of the utility model structural representation.
Embodiment
With reference to Fig. 1, the axial oblique plate plunger pump of variable displacement, comprise the pump housing 1, be provided with plunger 2 in the described pump housing 1, the oil inlet end of described plunger 2 is provided with swash plate 3, and the oil extraction end that an end of the described pump housing 1 is positioned at plunger 2 is provided with oil distribution casing 4, the filler opening of described plunger 2 and oil drain out place are provided with respectively inlet valve 5 and outlet valve 6, be equipped with oil sealing pearl 7 in described inlet valve 5 and outlet valve 6, between described inlet valve 5 and outlet valve 6, be provided with return spring 8, described oil sealing pearl 7 is the zirconia ceramics pearl.
Described oil distribution casing 4 is connected by locating stud 9 with the pump housing 1.
When work, plungers pump plunger to-and-fro motion total kilometres L is constant, by the lift decision of swash plate 3.Plunger 2 is that the volume-variation that to-and-fro motion produces in plunger hole under the effect of swash plate 3 is carried out work.Plunger 2 changes at the volume of the active force lower prop consent inside of return spring 8, while drawing outside plunger 2, pressure decreased, outlet valve 6 cuts out, during lower than inlet pressure, inlet valve 5 is opened, and oil is inhaled in plunger hole, plunger 2 is under swash plate 3 effects, while pushing away in plunger 2, pressure raises, and inlet valve 5 cuts out, during higher than outlet pressure, outlet valve 6 is opened, and oil is pressed into oil distribution casing 4, in oil distribution casing 4 and plunger 2 inside, has an outlet valve 6 to prevent that oil from refluxing, stroking mechanism is used for changing the inclination angle of swash plate, by the inclination angle of regulating swash plate, can change pump delivery.Because plunger 2 and plunger hole are all circular pieces, add and can reach very high precision by grinding-in man-hour and coordinate, so volumetric efficiency are high.The work indoor liquid enters; Working room's liquid is discharged.
Wherein, inlet valve 5 and outlet valve 6 are one-way valve.
Because the plunger pump assembly is comprised of the pump housing 1, plunger 2, oil distribution casing 4 and valve four parts, therefore it in use assembles simply, reliable performance, easy to maintenance, energy lowering apparatus maintenance expenses and service cycle, the plunger pump delivery is large, and discharge capacity is adjustable, be convenient to promote pulser signal emissino frequency, improve the pulser logging accuracy.Because the volume of d-axis swash plate plunger pump is small and exquisite, reduced like this occupancy rate at the pulser internal volume, dwindled the pulser volume simultaneously, reduced the freight of pulser.
The valve seat of inlet valve 5 and outlet valve 6 and plunger 2 adopt the SS440 material to carry out the surface heat processing, improve like this surface hardness and the abrasion resistance of material, and the light processing was carried out in 7 employings of oil sealing pearl, the high zirconia ceramics of circularity is made, and has higher intensity, high-fracture toughness and high hardness, have good abrasion resistance properties, Young's modulus and thermal expansion coefficient and metal are close, and thermal conductivity is low, this has greatly improved the working life of one-way valve, and its life-span has on average been improved 1 times.
The utility model is simple in structure, reasonable in design, stable performance, and long service life, can reduce the maintenance cost of pulser, the working life that can improve one-way valve.
Claims (2)
1. the axial oblique plate plunger pump of variable displacement, comprise the pump housing, be provided with plunger in the described pump housing, it is characterized in that: the oil inlet end of described plunger is provided with swash plate, the oil extraction end that one end of the described pump housing is positioned at plunger is provided with oil distribution casing, and the filler opening of described plunger and oil drain out place are provided with respectively inlet valve and outlet valve, are equipped with the oil sealing pearl in described inlet valve and outlet valve, be provided with return spring between described inlet valve and outlet valve, described oil sealing pearl is the zirconia ceramics pearl.
2. the axial oblique plate plunger pump of variable displacement according to claim 1, it is characterized in that: described oil distribution casing is connected by locating stud with the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320395513 CN203362429U (en) | 2013-07-04 | 2013-07-04 | Variable type axial swash plate plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320395513 CN203362429U (en) | 2013-07-04 | 2013-07-04 | Variable type axial swash plate plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203362429U true CN203362429U (en) | 2013-12-25 |
Family
ID=49810209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320395513 Expired - Fee Related CN203362429U (en) | 2013-07-04 | 2013-07-04 | Variable type axial swash plate plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203362429U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358665A (en) * | 2014-11-10 | 2015-02-18 | 济南镇海机械厂 | Straight-axis plunger pump |
| CN113122113A (en) * | 2021-04-25 | 2021-07-16 | 马玉国 | Preparation method of durable paint |
-
2013
- 2013-07-04 CN CN 201320395513 patent/CN203362429U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358665A (en) * | 2014-11-10 | 2015-02-18 | 济南镇海机械厂 | Straight-axis plunger pump |
| CN113122113A (en) * | 2021-04-25 | 2021-07-16 | 马玉国 | Preparation method of durable paint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20210704 |