CN204921350U - A special spring back seat of axial plunger pump that is used for railway hydraulic pressure to remove - Google Patents
A special spring back seat of axial plunger pump that is used for railway hydraulic pressure to remove Download PDFInfo
- Publication number
- CN204921350U CN204921350U CN201520497036.5U CN201520497036U CN204921350U CN 204921350 U CN204921350 U CN 204921350U CN 201520497036 U CN201520497036 U CN 201520497036U CN 204921350 U CN204921350 U CN 204921350U
- Authority
- CN
- China
- Prior art keywords
- rear end
- spring
- spring seat
- plunger pump
- back seat
- 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)
- Reciprocating Pumps (AREA)
Abstract
The utility model discloses a special spring back seat of axial plunger pump that is used for railway hydraulic pressure to remove, it makes the rear end spring holder by steel to be equipped with rear end spring holder steel ball groove, rear end spring holder spring contact surface on the spring holder of rear end, the special spring back seat of axial plunger pump is removed to this railway hydraulic pressure is for the installation steel ball, and the spring twist -off is axial plunger pump's a vitals when preventing that the plunger from being reciprocating motion. (U /)
Description
technical field:
The utility model relates to oil hydraulic pump technical field, specifically a kind of axial piston pump special purpose spring back seat removed 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 install steel ball, and when preventing plunger from moving reciprocatingly, spring twists off, and provides a kind of axial piston pump special purpose spring back seat removed for railway hydraulic.
The utility model adopts following technological scheme to realize its goal of the invention: a kind of axial piston pump special purpose spring back seat removed for railway hydraulic, it makes rear end spring seat 1 by steel, and on rear end spring seat 1, be provided with rear end spring seat steel-ball groove 2, spring seat spring contact face, rear end 3; It is inner that rear end spring seat steel-ball groove 2 is located at rear end spring seat 1; Spring seat spring contact face, rear end 3 is surface of contact of rear end spring seat 1 and miscellaneous part.
Owing to have employed above technological scheme, the utility model achieves its goal of the invention preferably, it is to install steel ball that this railway hydraulic removes axial piston pump special purpose spring back seat, and when preventing plunger from moving reciprocatingly, spring twists off, and 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 view 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 axial piston pump special purpose spring back seat removed for railway hydraulic, it makes rear end spring seat 1 by steel, and on rear end spring seat 1, be provided with rear end spring seat steel-ball groove 2, spring seat spring contact face, rear end 3; It is inner that rear end spring seat steel-ball groove 2 is located at rear end spring seat 1; Spring seat spring contact face, rear end 3 is surface of contact of rear end spring seat 1 and miscellaneous part.
Rear end described in the utility model spring seat 1 refers to: rear end spring seat; Which is provided with rear end spring seat steel-ball groove 2, spring seat spring contact face, rear end 3; Its effect is for the installation of steel ball 2 and supporting and retaining spring; Its structure is as shown in accompanying drawing 1,2.
Rear end described in the utility model spring seat steel-ball groove 2 refers to: the steel-ball groove of rear end spring seat 1 inside; Its effect is the installation for steel ball 2; Its design attitude is as marked shown in 2 in accompanying drawing 1,2.
Spring seat spring contact face, rear end described in the utility model 3 refers to: spring seat spring contact face, rear end; Its effect is the surface of contact of rear end spring seat 1 and spring; Its design attitude is as marked shown in 3 in accompanying drawing 1,2.
| Reference numerals | Mark title | Reference numerals | Mark title |
| 1 | Rear end spring seat 1 | 3 | Spring seat spring contact face, rear end 3 |
| 2 | Rear end spring seat steel-ball groove 2 |
Claims (1)
1. for the axial piston pump special purpose spring back seat that railway hydraulic is removed, it is characterized in that it makes rear end spring seat (1) by steel, and on rear end spring seat (1), be provided with rear end spring seat steel-ball groove (2), spring seat spring contact face, rear end (3); It is inner that rear end spring seat steel-ball groove (2) is located at rear end spring seat (1); Spring seat spring contact face, rear end (3) is the surface of contact of rear end spring seat (1) and miscellaneous part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520497036.5U CN204921350U (en) | 2015-07-11 | 2015-07-11 | A special spring back seat of axial plunger pump that is used for railway hydraulic pressure to remove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520497036.5U CN204921350U (en) | 2015-07-11 | 2015-07-11 | A special spring back seat of axial plunger pump that is used for railway hydraulic pressure to remove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204921350U true CN204921350U (en) | 2015-12-30 |
Family
ID=54970484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520497036.5U Expired - Fee Related CN204921350U (en) | 2015-07-11 | 2015-07-11 | A special spring back seat of axial plunger pump that is used for railway hydraulic pressure to remove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204921350U (en) |
-
2015
- 2015-07-11 CN CN201520497036.5U patent/CN204921350U/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: 20151230 Termination date: 20210711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |