CN202431468U - Plunger pump with simple structure - Google Patents
Plunger pump with simple structure Download PDFInfo
- Publication number
- CN202431468U CN202431468U CN201120438332XU CN201120438332U CN202431468U CN 202431468 U CN202431468 U CN 202431468U CN 201120438332X U CN201120438332X U CN 201120438332XU CN 201120438332 U CN201120438332 U CN 201120438332U CN 202431468 U CN202431468 U CN 202431468U
- Authority
- CN
- China
- Prior art keywords
- valve body
- oil
- plunger
- pump
- steel ball
- 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)
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model provides a plunger pump with a simple structure. A plurality of plunger valves are arranged in a pump body of the plunger pump; each plunger valve mainly consists of a valve rod and a valve body. The bottom part of each valve body is connected with a bottom plate of the pump body; the wall of the valve body is provided with an oil discharge inclined hole; and the bottom plate of the pump body at the lower part of the cavity of the valve body is provided with an oil suction hole. Each oil discharge inclined hole is provided with a convex plate; a steel ball is arranged on the each convex plate; the diameter of each steel ball is greater than aperture of the inner hole of the convex plate; the oil discharge inclined hole is provided with a concave plate; a steel ball is arranged on each concave plate; and the diameter of each steel ball is greater than aperture of the inner hole of the concave plate. On the premise that the functional parameter of the plunger pump in the prior art is reached, the structure of the plunger pump provided by the utility model is greatly simplified. Manufacturing is simple and convenient, the size is small, the production cost is low, the maintenance rate is low, the installation is convenient, the service life is long and the performance is safety and reliable.
Description
Technical field
The utility model relates to plunger pump, particularly a kind of plunger pump of simple structure.
Background technique
Plunger pump is one of important device of engineering construction hydraulic equipment.The axial piston pump of existing technology is that a plurality of plunger valves are evenly laid on circle-shaped ground in the pump housing, and the following position of each plunger valve is equipped with oil suction and oil-releasing mechanism.The plunger rod of each plunger valve; Through be positioned at its top and rotating the jointing state of swash plate; Make under the valve rod cap of plunger valve set spring or be lax shape, or be impaction state, oil suction and oil-releasing mechanism or the oil suction or the oil extraction of each plunger valve of while; Thereby the valve rod of controlling each plunger valve is reciprocating, makes hydraulic equipment accomplish the engineering construction operation.Yet, not only to occupy certain volume as the oil suction and the oil-releasing mechanism of plunger valve critical component, installation difficulty is bigger, and more because of included part, and rate of fault is also higher.For example in a single day certain spring ruptures, and will make the pressure transient of plunger pump, even the pressure release situation takes place, and this is a danger close for the hydraulic equipment under the former high pressure conditions operation, so there is potential safety hazard.
Summary of the invention
The utility model is to above-mentioned deficiency; A kind of plunger pump of simple structure has been proposed; Purpose is through the structure of existing plunger pump inner prop plug valve is improved; Plunger valve is being reached under original functional parameter prerequisite, have advantage simple in structure, that volume is little, installation is simple and easy, rate of fault is low.
The technical solution of the utility model
The plunger pump of a kind of simple structure that the utility model is alleged, it is in the pump housing, to be provided with a plurality of plunger valves, and each plunger valve mainly is made up of valve rod and valve body, and the pump housing is positioned at fuel tank, and its oil outlet connects oil outlet tube.Said valve body bottom engages with pump housing base plate; The wall of said valve body is provided with the oil extraction inclined hole; The pump housing base plate at position is provided with oil-sucking hole under the chamber of said valve body.
The further technical solution of the utility model
Said valve body bottom is adopted fastening piece that both are with pump housing base plate and is compressed sealing engagement.
The oil extraction inclined hole upper end that said valve body wall is provided with is provided with the oil outlet that the oil extraction arm connects the pump housing; Its lower end communicates with the valve body chamber, and the place of communicating is provided with boss, is placed with steel ball on the boss, and the steel ball footpath is greater than the boss internal orifice dimension.
The set oil-sucking hole of pump housing base plate at position under the said valve body chamber feeds in the fuel tank, and oil-sucking hole is provided with concave station, is placed with steel ball on the concave station, and the steel ball footpath is greater than the concave station internal orifice dimension.
The position, hole of said oil-sucking hole is provided with near valve body wall.
The beneficial effect of the utility model
(1) the utility model is reaching under the functional parameter prerequisite of existing technology plunger pump, has simplified the structure of plunger valve greatly, and manufacturing process is easy, volume is little, and cost of production is low;
(2) the utility model has removed part rapid wear assembly, and maintenance rate is low, easy for installation, long service life, and performance is safe and reliable.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model.
Embodiment
It is as shown in Figure 1,
The top of the utility model pump housing 1 is connected with and is provided with a plurality of plunger valves 3 (among the figure only corresponding one group two of expression) in power equipment 2 (like motor, diesel engine, the petrol engine etc.) pump housing, and each plunger valve mainly is made up of valve rod 31 and valve body 32.Valve body wall is provided with oil extraction inclined hole 33, and oil extraction inclined hole upper end connects oil extraction arm 4; The pump housing base plate at position is provided with oil-sucking hole 11 under the valve body chamber, and oil-sucking hole feeds fuel tank 5.Oil extraction inclined hole end end is provided with boss 331 with the place of communicating, valve body chamber, is placed with oil drainage hole steel ball 332 on the boss; Oil-sucking hole 11 is provided with concave station 111, is placed with oil-sucking hole steel ball 112 on the concave station.Compress sealing engagement through employing fastening piece outside thread nut 6 between valve body bottom and the pump housing base plate.
Below in conjunction with accompanying drawing, the working procedure of brief description the utility model plunger valve:
The plunger rod end of each plunger valve in the plunger pump, through driving swash plate 21 runnings with being positioned at its top power equipment, make plunger valve 311 times set springs 312 of valve rod cap or be lax shape, or be impaction state, as: the spring of left side valve is the shape that relaxes among the figure; The spring of the right valve is for compressing shape, is provided with chamfering man-hour owing to boss or concave station add, thereby steel ball drops on oil drainage hole or the oil-sucking hole and all excellent sealing performance can be arranged.When the valve rod of left side valve moved up, oil-sucking hole steel ball 112 was picked up, and oil-sucking hole sucks fluid in fuel tank; The valve rod of the right valve is to bottom offset, and oil-sucking hole steel ball 112 is adjacent in the oil suction aperture, and the fluid in the valve pocket is the communications centre oilhole steel ball 332 that begins to rehearse then, discharges from the oil extraction inclined hole, gets into the oil outlet of the pump housing.So each plunger valve to-and-fro motion again and again makes the oil outlet of plunger pump have continuously high pressure oil export from oil outlet tube, to satisfy the needs of engineering hydraulic equipment.
To sum up, the utility model can reach the goal of the invention of expection.
Claims (5)
1. the plunger pump of a simple structure, it is in the pump housing, to be provided with a plurality of plunger valves, and each plunger valve mainly is made up of valve rod and valve body, and the pump housing is positioned at fuel tank, and its oil outlet connects oil outlet tube, it is characterized in that: said valve body bottom engages with pump housing base plate; The wall of said valve body is provided with the oil extraction inclined hole; The pump housing base plate at position is provided with oil-sucking hole under the chamber of said valve body.
2. the plunger pump of a kind of simple structure according to claim 1 is characterized in that: adopt fastening piece that both are with pump housing base plate bottom the said valve body and compress sealing engagement.
3. the plunger pump of a kind of simple structure according to claim 1 is characterized in that: on the oil extraction inclined hole that said valve body wall is provided with, be provided with the oil outlet that the oil extraction arm connects the pump housing; Its lower end communicates with the valve body chamber, and the place of communicating is provided with boss, is placed with steel ball on the boss, and the steel ball footpath is greater than the boss internal orifice dimension.
4. the plunger pump of a kind of simple structure according to claim 1 is characterized in that: the set oil-sucking hole of pump housing base plate at position under the said valve body chamber, feed in the fuel tank, and oil-sucking hole is provided with concave station, is placed with steel ball on the concave station, and the steel ball footpath is greater than the concave station internal orifice dimension.
5. according to the plunger pump of claim 1 or 4 described a kind of simple structures, it is characterized in that: the position, hole of said oil-sucking hole is provided with near valve body wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120438332XU CN202431468U (en) | 2011-11-08 | 2011-11-08 | Plunger pump with simple structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120438332XU CN202431468U (en) | 2011-11-08 | 2011-11-08 | Plunger pump with simple structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202431468U true CN202431468U (en) | 2012-09-12 |
Family
ID=46780920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120438332XU Expired - Fee Related CN202431468U (en) | 2011-11-08 | 2011-11-08 | Plunger pump with simple structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202431468U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937087A (en) * | 2012-10-30 | 2013-02-20 | 王玉喜 | Plunger pump in double swash plate structure |
| CN105332875A (en) * | 2015-11-17 | 2016-02-17 | 四川嘉泉科技有限公司 | Multi-functional water and oil hybrid electric pump |
| CN107725353A (en) * | 2017-10-31 | 2018-02-23 | 杭州力龙液压有限公司 | Plunger and energy conversion |
| CN113565732A (en) * | 2021-05-19 | 2021-10-29 | 马可继 | Dry vacuum pump |
-
2011
- 2011-11-08 CN CN201120438332XU patent/CN202431468U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937087A (en) * | 2012-10-30 | 2013-02-20 | 王玉喜 | Plunger pump in double swash plate structure |
| CN102937087B (en) * | 2012-10-30 | 2014-12-10 | 王玉喜 | Plunger pump in double swash plate structure |
| CN105332875A (en) * | 2015-11-17 | 2016-02-17 | 四川嘉泉科技有限公司 | Multi-functional water and oil hybrid electric pump |
| CN105332875B (en) * | 2015-11-17 | 2017-12-19 | 四川嘉泉科技有限公司 | A kind of multifunctional water oil dual-purpose electric pump |
| CN107725353A (en) * | 2017-10-31 | 2018-02-23 | 杭州力龙液压有限公司 | Plunger and energy conversion |
| CN113565732A (en) * | 2021-05-19 | 2021-10-29 | 马可继 | Dry vacuum 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: 20120912 Termination date: 20141108 |
|
| EXPY | Termination of patent right or utility model |