CN204941907U - A kind of special axle head capping of axial piston pump of removing for railway hydraulic - Google Patents
A kind of special axle head capping of axial piston pump of removing for railway hydraulic Download PDFInfo
- Publication number
- CN204941907U CN204941907U CN201520497030.8U CN201520497030U CN204941907U CN 204941907 U CN204941907 U CN 204941907U CN 201520497030 U CN201520497030 U CN 201520497030U CN 204941907 U CN204941907 U CN 204941907U
- Authority
- CN
- China
- Prior art keywords
- seal cover
- shaft seal
- axial piston
- pump
- piston pump
- 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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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a kind of special axle head capping of axial piston pump of removing for railway hydraulic, it makes shaft seal cover by steel; And on shaft seal cover, be provided with shaft seal cover mounting hole, shaft seal cover axis hole, oil sealing face adapted; This special axle head capping of axial piston pump of removing for railway hydraulic can prevent leakage of oil and air in pump from entering in pump, is the vitals of axial piston pump.<u />
Description
technical field:
The utility model relates to oil hydraulic pump technical field, specifically a kind of special axle head capping of axial piston pump of removing for railway hydraulic.
background technique:
Axial piston pump utilizes the volume-variation that produces of plunger plunger hole in the to-and-fro motion parallel with transmission shaft to carry out work; Because plunger and plunger hole are all circular pieces, add the class fit that can reach very high man-hour, therefore there is volumetric efficiency high, smooth running, discharge uniformity is good, and noise is low, working pressure advantages of higher, is widely used in the fields such as lathe, metallurgy, mining machinery, engineering machinery, boats and ships; At present, in patent CN202746172U disclosed in Chinese patent literature, disclose a kind of novel axial plunger pump, this novel axial plunger pump comprises the front pump housing, middle pump body, cylinder body, outer cylinder body, bonnet and transmission shaft, the front pump housing is by bearing fit in transmission shaft one end, and cylinder body is sleeved on the transmission shaft the other end, outer cylinder body and cylinder body excircle interference fit, middle pump body is coordinated with outer cylinder body excircle by needle bearing, after be covered on end part of driving shaft and be fixedly connected with middle pump body one end; The middle pump body the other end is fixedly connected with front pump housing one end, cylinder body end face is shaped with plunger hole, piston bore bottom is provided with piston spring, piston spring one end is connected with piston bore bottom, the piston spring the other end is connected with plunger at one end, cylinder ends is provided with disc and disc one end and the plunger the other end push against, and the disc the other end matches with the swash plate being fixed on rear cover cavity; Although make plunger return at plunger base design piston spring, original slip is become rolling massage, but when being used for the work condition environment that railway hydraulic is removed, because load is comparatively large and when affecting piston spring with drive axis by rail vibration, spring is easy to twist off, and by end face bearing touch between disc and swash plate, the sliding friction of minimizing is also little; Each parts of the axial piston pump removed for railway hydraulic are extremely important.
summary of the invention:
The purpose of this utility model is to prevent leakage of oil and air in pump from entering in pump, provides a kind of special axle head capping of axial piston pump of removing for railway hydraulic.
The utility model adopts following technological scheme to realize its goal of the invention: a kind of special axle head capping of axial piston pump of removing for railway hydraulic, and it makes shaft seal cover 1 by steel; And on shaft seal cover 1, be provided with shaft seal cover mounting hole 2, shaft seal cover axis hole 3, oil sealing face adapted 4; Shaft seal cover mounting hole 2 is located at shaft seal cover 1 surrounding, distributes symmetrically; Shaft seal cover axis hole 3 is central shaft holes of shaft seal cover 1; Oil sealing face adapted 4 is located at shaft seal cover axis hole 3 internal surface.
Owing to have employed above technological scheme, the utility model achieves its goal of the invention preferably, and this special axle head capping of axial piston pump of removing for railway hydraulic can prevent leakage of oil and air in pump from entering in pump, is the vitals of axial piston pump.
accompanying drawing illustrates:
Accompanying drawing 1 is overall structure schematic diagram of the present utility model.
Accompanying drawing 2 is overall cross-sectional configuration schematic diagram of the present utility model.
Description of reference numerals is shown in specification last page form.
embodiment:
Below in conjunction with accompanying drawing, summary of the invention is described further:
embodiment 1:
From accompanying drawing, a kind of special axle head capping of axial piston pump of removing for railway hydraulic, it makes shaft seal cover 1 by steel; And on shaft seal cover 1, be provided with shaft seal cover mounting hole 2, shaft seal cover axis hole 3, oil sealing face adapted 4; Shaft seal cover mounting hole 2 is located at shaft seal cover 1 surrounding, distributes symmetrically; Shaft seal cover axis hole 3 is central shaft holes of shaft seal cover 1; Oil sealing face adapted 4 is located at shaft seal cover axis hole 3 internal surface.
Shaft seal cover 1 described in the utility model refers to: shaft seal cover; Which is provided with shaft seal cover mounting hole 2, shaft seal cover axis hole 3, oil sealing face adapted 4; Its effect prevents leakage of oil and air in pump from entering in pump; As shown in Figure 1, its cross-section structure as shown in Figure 2 for its structure.
Shaft seal cover mounting hole 2 described in the utility model refers to: shaft seal cover mounting hole; Its effect is the installation for shaft seal cover 1; Its design attitude is as marked shown in 2 in accompanying drawing 1,2.
Shaft seal cover axis hole 3 described in the utility model refers to: shaft seal cover axis hole; Its effect is the central shaft hole of shaft seal cover 1; Its design attitude is as marked shown in 3 in accompanying drawing 1,2.
Oil sealing face adapted 4 described in the utility model refers to: oil sealing face adapted; Its effect is the surface of contact with oil sealing; Its design attitude is as marked shown in 4 in accompanying drawing 2.
| Reference numerals | Mark title | Reference numerals | Mark title |
| 1 | Shaft seal cover 1 | 3 | Shaft seal cover axis hole 3 |
| 2 | Shaft seal cover mounting hole 2 | 4 | Oil sealing face adapted 4 |
Claims (1)
1., for the special axle head capping of axial piston pump that railway hydraulic is removed, it is characterized in that it makes shaft seal cover (1) by steel; And on shaft seal cover (1), be provided with shaft seal cover mounting hole (2), shaft seal cover axis hole (3), oil sealing face adapted (4); Shaft seal cover mounting hole (2) is located at shaft seal cover (1) surrounding, distributes symmetrically; Shaft seal cover axis hole (3) is the central shaft hole of shaft seal cover (1); Oil sealing face adapted (4) is located at shaft seal cover axis hole (3) internal surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520497030.8U CN204941907U (en) | 2015-07-11 | 2015-07-11 | A kind of special axle head capping of axial piston pump of removing for railway hydraulic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520497030.8U CN204941907U (en) | 2015-07-11 | 2015-07-11 | A kind of special axle head capping of axial piston pump of removing for railway hydraulic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204941907U true CN204941907U (en) | 2016-01-06 |
Family
ID=55009345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520497030.8U Expired - Fee Related CN204941907U (en) | 2015-07-11 | 2015-07-11 | A kind of special axle head capping of axial piston pump of removing for railway hydraulic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204941907U (en) |
-
2015
- 2015-07-11 CN CN201520497030.8U patent/CN204941907U/en not_active Expired - Fee Related
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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: 20160106 Termination date: 20160711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |