CN201687677U - Special axial high-pressure oil pump for pressure testing machine - Google Patents
Special axial high-pressure oil pump for pressure testing machine Download PDFInfo
- Publication number
- CN201687677U CN201687677U CN2010201749984U CN201020174998U CN201687677U CN 201687677 U CN201687677 U CN 201687677U CN 2010201749984 U CN2010201749984 U CN 2010201749984U CN 201020174998 U CN201020174998 U CN 201020174998U CN 201687677 U CN201687677 U CN 201687677U
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- CN
- China
- Prior art keywords
- oil pump
- main shaft
- testing machine
- plunger
- pressure oil
- 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 - Fee Related
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Abstract
The utility model provides a special axial high-pressure oil pump for a pressure testing machine, which has compact structure and small overall dimension. The pump can be used and save the cost of the testing machine. The pump includes a motor, a transmission gear box, a main shaft, axial plungers and plunger sleeves which are matched, an oil pump, a casing, an oil inlet, an oil outlet, and an oil outlet nut. The special axial high-pressure oil pump is characterized in that the axial plungers and the plunger sleeves are distributed on the periphery of the main shaft, a swash plate is arranged on the main shaft, and the swash plate tightly presses the axial plungers which are distributed along the main shaft in the high-pressure oil pump.
Description
(1) technical field
The utility model relates to the high pressure oil pump technical field, is specially a kind of compression testing machine special axis to high pressure oil pump.
(2) background technique
Oil pump is the important component part of hydraulic pressure testing machine, and it is converted into the hydraulic pressure energy with the mechanical energy of motor, realizes the loading to sample.The big more problem of the existing high more volume of standard oil pump ubiquity oil pressure if use the standard oil pump on compression testing machine, must increase the profile of testing machine, and then increases the cost of testing machine.
(3) summary of the invention
At the problems referred to above, the utility model provides a kind of compression testing machine special axis to high pressure oil pump, its compact structure, and boundary dimension is little, uses described pump can save the cost of testing machine.
Its technological scheme is such, it comprises motor, speed-changing gear box, main shaft, supporting axial plunger and plunger bushing, oil pump body, housing, filler opening, oil outlet, fuel-displaced nut, it is characterized in that: described supporting axial plunger and plunger bushing distribute around described main shaft, described main shaft is provided with swash plate, and described swash plate compresses the axial plunger of the described high pressure oil pump that distributes along main shaft.
It is further characterized in that: described supporting axial plunger and plunger are with five groups.
The utility model so high pressure oil pump does not need too big volume, thereby has been saved material owing to adopted to have in the oil pump to organize axial plungers and plunger bushings more, uses described axial multicolumn high pressure oil pump high-pressure service pump can save the cost of testing machine.
(4) description of drawings
Fig. 1 is that the utility model compression testing machine special axis is to the high pressure oil pump longitudinal sectional view;
Fig. 2 is that the utility model compression testing machine special axis is to high pressure oil pump A-A sectional view;
Fig. 3 is that the utility model compression testing machine special axis is to high pressure oil pump B-B sectional view.
(5) embodiment
Fig. 1, Fig. 2, shown in Figure 3, axial five post high pressure oil pumps comprise motor 1, speed-changing gear box 2, housing 13, oil pump body 14, main shaft 3, the axial plunger 5 of five assembly cover, plunger bushing 6, filler opening 7, oil outlet 15, the passage 16 that is communicated with connects filler opening 7, the passage 17 that is communicated with connects oil outlet 15, have swash plate 4 on the main shaft 3, motor 1 driven gear gearbox 2, when speed-changing gear box 2 drives main shaft 3 rotations, five axial plungers 5 that drive is closely attached on the main shaft swash plate 4 produce axially reciprocating respectively successively in five plunger bushings 6, by the pipeline 16 that is communicated with oil is sucked plunger cavity 8 from filler opening 7, this moment, oil pump one-way valve 12 ball 10 was close to fuel-displaced nut 9 on the one-way valve 12 by spring, fuel-displaced nut 9 disconnects with filler opening 7 by the passage 16 that is communicated with, oil enters plunger cavity 8, after oil is filled plunger cavity 8, axial plunger 5 is pushed back by the swash plate on the main shaft 4, block filler opening 7 earlier, the oil that the compression plunger cavity is 8 li, make it to produce high pressure, push the ball 10 of one-way valve 12 open, fuel-displaced nut 9 is communicated with oil outlet 15 by the passage 17 that is communicated with, and the high pressure oil of discharge enters oil outlet 15 by the passage 17 that is communicated with.Five plunger periodic motions produce high pressure oil.Because be a plurality of plunger cycles extrusion high pressure oils in the pump housing, so high pressure oil pump does not need too big volume, thereby saved material, use described axial multicolumn high pressure oil pump high-pressure service pump can save the cost of testing machine.
Certainly in order to reach required oil pressure, this axial high pressure oil pump can adopt three groups, the axial plunger and the plunger bushing of seven groups or many assembly cover.
Claims (2)
1. a compression testing machine special axis is to high pressure oil pump, it comprises motor, speed-changing gear box, main shaft, supporting axial plunger and plunger bushing, oil pump body, housing, filler opening, oil outlet, fuel-displaced nut, it is characterized in that: described supporting axial plunger and plunger bushing distribute around described main shaft, described main shaft is provided with swash plate, and described swash plate compresses the described axial plunger that distributes along main shaft.
According to the described a kind of compression testing machine special axis of claim 1 to high pressure oil pump, it is characterized in that: described supporting axial plunger and plunger are with five groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201749984U CN201687677U (en) | 2010-04-03 | 2010-04-03 | Special axial high-pressure oil pump for pressure testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201749984U CN201687677U (en) | 2010-04-03 | 2010-04-03 | Special axial high-pressure oil pump for pressure testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201687677U true CN201687677U (en) | 2010-12-29 |
Family
ID=43375960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201749984U Expired - Fee Related CN201687677U (en) | 2010-04-03 | 2010-04-03 | Special axial high-pressure oil pump for pressure testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201687677U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819114A (en) * | 2015-05-11 | 2015-08-05 | 于井奇 | Hydraulic pump |
| CN108050029A (en) * | 2017-12-05 | 2018-05-18 | 宁波市奉化溪口威尔特制泵厂 | A kind of energy-efficient inclined disc type high-pressure plunger pump |
-
2010
- 2010-04-03 CN CN2010201749984U patent/CN201687677U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819114A (en) * | 2015-05-11 | 2015-08-05 | 于井奇 | Hydraulic pump |
| CN108050029A (en) * | 2017-12-05 | 2018-05-18 | 宁波市奉化溪口威尔特制泵厂 | A kind of energy-efficient inclined disc type high-pressure plunger pump |
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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 |
Granted publication date: 20101229 Termination date: 20160403 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |