CN113653636B - Hydraulic plunger pump oil distribution disc and plunger pump - Google Patents
Hydraulic plunger pump oil distribution disc and plunger pump Download PDFInfo
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- CN113653636B CN113653636B CN202111004231.6A CN202111004231A CN113653636B CN 113653636 B CN113653636 B CN 113653636B CN 202111004231 A CN202111004231 A CN 202111004231A CN 113653636 B CN113653636 B CN 113653636B
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- oil
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- disc body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/18—Lubricating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/22—Arrangements for enabling ready assembly or disassembly
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The hydraulic plunger pump oil distribution disc comprises an oil distribution disc body, an oil absorption window and an oil drainage window are formed in the oil distribution disc body, a sealing portion is further arranged on the oil distribution disc body, the surface of the oil distribution disc body is divided into an oil absorption area, an oil drainage area and an oil drainage area by the sealing portion, the oil absorption area is communicated with the oil absorption window, the oil drainage area is communicated with the oil drainage window, and a communicating portion for communicating the oil absorption area with the oil drainage area is formed in the sealing portion. The oil sucking window of the oil distribution disc is communicated with the oil return in the pump cavity by adding a communication part on the sealing part of the oil distribution disc and the communication part of the oil sucking area and the oil discharging area. The oil absorption window and the oil absorption area generate a low-pressure area to absorb oil when the pump works, and the oil in the oil drain area is sucked into the oil absorption window when the pump pumps oil in the inlet oil way, so that the problem of rising oil return pressure in the pump cavity is solved.
Description
Technical Field
The disclosure belongs to the technical field of plunger pumps, and particularly relates to an oil distribution disc of a hydraulic plunger pump and the plunger pump.
Background
The hydraulic plunger pump has various types and wide application fields, such as aerospace, ships, engineering machinery, farm machinery and the like. Although the structural principle of the plunger pump is approximately the same, specific structural designs have certain differences according to different application scenes.
Because of the structural principle characteristics of the hydraulic plunger pump, when the hydraulic plunger pump works, the joint surface of the oil distribution disc and the cylinder body in the pump cavity and the joint surface of the cylinder body plunger hole and the plunger body are equivalent to the sliding sealing surface, hydraulic oil can have certain internal leakage, and the hydraulic oil leaks into the pump cavity from a high-pressure oil path of the pump, if the oil leaked into the pump cavity can not be discharged in time, the pressure in the pump cavity can be quickly increased, and finally the pump shell is broken and other faults are caused.
Disclosure of Invention
In order to solve at least one of the above technical problems, a first object of the present disclosure is to provide a hydraulic plunger pump oil distribution disc that allows return oil in a pump chamber to enter from an inlet and then flow out from an outlet, thereby solving the problem that the pressure of the pump chamber is continuously increased.
A second object of the present disclosure is to provide a plunger pump including the above-described hydraulic plunger pump oil distribution pan;
in order to achieve the first object of the present disclosure, the technical solution adopted in the present disclosure is as follows:
the utility model provides a hydraulic plunger pump oil distribution disc, includes the oil distribution disc body, oil absorption window and oil extraction window have been seted up on the oil distribution disc body, the oil distribution disc body still is provided with sealing portion, sealing portion will be joined in marriage oil distribution disc body surface and split into oil absorption district, oil extraction district and oil drainage district, oil absorption district and oil absorption window intercommunication, the oil extraction district with oil extraction window intercommunication, sealing portion has seted up the intercommunication portion that communicates oil absorption district and oil drainage district.
Optionally, a first oil drain groove is formed in the surface of the oil drain area of the oil distribution disc body, and the communication part is used for communicating the first oil drain groove with the oil suction area.
Optionally, at least one oil return groove is further formed along the radial direction of the oil distribution disc body, one end of the oil return groove is communicated with the first oil drain groove, and the other end of the oil return groove extends to the outer edge of the oil distribution disc body.
Optionally, the first oil drain groove is distributed annularly along the circumference of the oil distribution disc body.
Optionally, the oil suction window and the oil discharge window are both semicircular waist-shaped hole structures, and the oil suction window and the oil discharge window are arranged inside the first oil drain groove.
Optionally, the oil return grooves are four, evenly distributed along the circumference of the oil distribution disc body, the shaft hole of the oil distribution disc body is further provided with an annular second oil drain groove, and a pair of oil return grooves are communicated with the second oil drain groove after passing through the first oil drain groove.
Optionally, the communicating portion is provided on a sealing portion between the first oil drain groove and the oil suction area, and/or the communicating portion is provided on a sealing portion between the second oil drain groove and the oil suction area.
Optionally, the sealing part comprises an oil absorption window sealing belt and an oil discharge window sealing belt, wherein the oil absorption window sealing belt is provided with a circle along the oil absorption window, and the oil discharge window sealing belt is provided with a circle along the oil discharge window.
Optionally, a plurality of positioning pin holes are further formed in the oil distribution disc body.
In order to achieve the second object of the present disclosure, the technical solution adopted in the present disclosure is as follows:
a plunger pump comprises the oil distribution disc of the hydraulic plunger pump.
According to the oil distribution plate oil suction window, the communicating part is additionally arranged on the sealing part of the oil distribution plate, so that the communicating part of the oil suction area and the oil discharge area is communicated with oil return in the pump cavity. The oil suction window and the oil suction area generate a low-pressure area to suck oil when the pump is in operation, and the oil in the oil drain area is sucked into the oil suction window when the pump pumps oil in the inlet oil way. When the pump works, the oil return leaked by each sliding sealing surface can enter an inlet oil way through the oil suction window of the pump through the communicating part, namely enter the plunger cavity of the low-pressure area of the pump cylinder body, then rotate to be communicated with the oil discharge window of the oil distribution disc of the pump through the cylinder body, and oil is discharged from the oil distribution disc to a system outlet.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
FIG. 1 is a schematic illustration of the structure of a hydraulic plunger pump oil distribution pan of the present disclosure;
fig. 2 is a cross-sectional view of a hydraulic ram pump oil distribution pan of the present disclosure.
Detailed Description
The present disclosure is described in further detail below with reference to the drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant content and not limiting of the present disclosure. It should be further noted that, for convenience of description, only a portion relevant to the present disclosure is shown in the drawings.
In addition, embodiments of the present disclosure and features of the embodiments may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
As shown in fig. 1, the disclosure provides a hydraulic plunger pump oil distribution disc, which comprises an oil distribution disc body 10, wherein when the oil distribution disc body 10 is in use, one side of the oil distribution disc body 10 is matched with an external oil distribution cover, the other side of the oil distribution disc body 10 is matched with an external cylinder body, an oil inlet channel and an oil outlet channel are formed in the oil distribution cover, oil enters the cylinder body through the oil inlet channel in the oil distribution cover and an oil suction window 4 on the oil distribution disc body 10, when a plunger in the cylinder body rotates to reach the position of the oil suction window 4, oil in the oil suction window 4 is sucked, when the plunger reaches the position of the oil discharge window 7, the plunger extrudes the oil to the oil discharge window 7, and the oil is discharged through the oil discharge window 7 and the oil outlet channel on the oil distribution disc in sequence;
referring to fig. 1 and 2, the oil distribution disc of the hydraulic plunger pump in the application is provided with an oil suction window 4 and an oil discharge window 7 on an oil distribution disc body 10, the oil suction window 4 and the oil discharge window 7 are generally semicircular waist-shaped hole structures, the surface of the oil distribution disc body 10 matched with an external oil distribution cover is further provided with a sealing part 8, the surface of the oil distribution disc body 10 is divided into an oil suction area 11, an oil discharge area 12 and an oil discharge area 13 by the sealing part 8, when the oil distribution disc body 10 is matched with the external oil distribution cover, the sealing part 8 divides the oil distribution disc and the oil distribution cover into the oil suction area 11, the oil discharge area 12 and the oil discharge area 13 which are sealed mutually, the oil suction area 11 is communicated with the oil suction window 4 to form a low-pressure area of oil in use, the oil discharge area 12 is communicated with the oil discharge window 7 to form a high-pressure area of the oil, and the sealing part 8 is provided with a communicating part 2 for communicating the oil suction area 11 and the oil discharge area 13. When the pump works, oil in a high-pressure area can leak to the oil drain area 13 through a circumferential gap of the oil distribution disc, a gap at an axial hole of the oil distribution disc or a gap of the oil drain window 7, and oil leaked by each sliding sealing surface can enter an inlet oil path through the oil suction window 4 of the pump through the communication part 2, namely enters a plunger cavity of a low-pressure area of a pump cylinder body, and then rotates to be communicated with the oil drain window 7 of the oil distribution disc through the cylinder body, so that the oil is discharged to a system outlet through oil drain of the oil distribution disc.
The communication portion 2 may be a communication hole or a communication groove formed in the seal portion 8, and the communication hole may be provided in the seal portion 8 or may be formed in the oil distribution pan body 10.
In an embodiment, the surface of the oil drain area 13 of the oil distribution disc body 10 is provided with a first oil drain groove 1, the communication part 2 communicates the first oil drain groove 1 with the oil suction area 11, the first oil drain groove 1 is used for collecting oil at all possible leakage positions, the collected oil is sucked into the oil suction window 4 through the communication part 2, the cross section of the first oil drain groove 1 can be rectangular, circular arc, trapezoid with internal shrinkage, and the like, the first oil drain groove 1 can be fully formed in the oil drain area 13, the first oil drain groove 1 from the oil drain area to the communication part 2 can be formed in the oil drain area according to the oil leakage area, and the leaked oil can be drained from the leakage area to the communication part 2.
In another embodiment, at least one oil return groove 9 is further formed along the radial direction of the oil distribution disc body 10, one end of the oil return groove 9 is communicated with the first oil drain groove 1, the other end of the oil return groove extends to the outer edge of the oil distribution disc body 10, and the oil return groove 9 in this embodiment is formed separately and is used for guiding the oil leaked from the outer edge of the oil distribution disc body 10 into the first oil drain groove 1. In order to enable oil leaked from the periphery of the oil distribution disc body 10 to flow to the first oil drain groove 1 through a relatively short distance, the first oil drain groove 1 is uniformly distributed with one circle along the circumferential direction of the oil distribution disc body 10. The oil suction window 4 and the oil discharge window 7 are arranged inside the first oil discharge groove 1, the oil suction window 4, the oil discharge window 7 and the first oil discharge groove 1 are concentrically arranged, and if leakage exists, high-pressure oil liquid in the oil discharge window 7 can directly leak into the first oil discharge groove 1 beside. The communicating part 2 can be arranged on the sealing part 8 between the first oil discharging groove 1 and the oil absorbing area 11, so that the oil in the first oil discharging groove 1 can be conveniently absorbed into the oil absorbing area 11.
In a preferred embodiment, the oil return grooves 9 are arranged in four, and are distributed annularly along the circumferential direction of the oil distribution disc body 10, namely, oil leaked along the outer edges of the four directions of the oil distribution disc body 10 can flow into the nearest oil return groove 9, and enter the first oil drain groove 1 through the oil return groove 9, an annular second oil drain groove 14 is further arranged at the shaft hole position of the oil distribution disc body 10, a pair of the oil return grooves 9 are communicated with the second oil drain groove 14 after passing through the first oil drain groove 1, the oil return groove 9 is communicated with the second oil drain groove 14 after passing through the first oil drain groove 1 and the oil drain window 7, the second oil drain groove 14 is used for collecting oil leaked at the shaft hole position of the oil distribution disc body 10, meanwhile, part of oil leaked from the oil drain window 7 is collected, the communicating part 2 can be arranged on a sealing part 8 between the second oil drain groove 14 and the oil drain region 11, and the oil is conveniently sucked into the oil drain region 11 through the second oil drain groove 1. The number of the oil return grooves 9 can be 6, 8, 16, etc., and can be different according to the size of oil leakage or the size of the oil distribution disc.
In an embodiment, the sealing portion 8 includes an oil absorption window sealing band 3 and an oil extraction window sealing band 5, the oil absorption window sealing band 3 is provided with a circle along the oil absorption window 4 for sealing the oil absorption window 4, and the oil extraction window sealing band 5 is provided with a circle along the oil extraction window 7 for sealing the oil extraction window 7, and the oil absorption window sealing band 3 and the oil extraction window sealing band 5. The oil distribution disc body 10 is also provided with a plurality of positioning pin holes 6 for positioning the oil distribution disc.
Example two
The plunger pump comprises the hydraulic plunger pump oil distribution disc, and the oil distribution disc is arranged. When the hydraulic plunger pump works, the pressure of the pump outlet oil way is continuously increased due to the action of a load, oil in the oil distribution disc oil discharging window 7 communicated with the outlet oil way is high-pressure oil, and oil in the pump cavity and the oil distribution disc oil discharging window 4 is low-pressure oil, so that small amount of high-pressure area oil leaked from sliding seal friction pairs of the pump enters the pump cavity, and then enters the oil discharging window 4 from the communicating part 2 on the oil distribution disc oil discharging window sealing strip 3 after passing through the first oil discharging groove 1 on the oil distribution disc, and the oil enters the cylinder body plunger cavity along with the oil absorbing effect of the plunger when the cylinder body rotates until the cylinder body rotates to the plunger cavity to be communicated with the oil discharging window 7. Therefore, the oil return in the pump cavity can enter the oil suction window from the gap in the outer seal of the oil distribution disc continuously and then is discharged from the pump outlet, and the problem of oil return pressure rise in the pump cavity is solved.
In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the present application. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
It will be appreciated by those skilled in the art that the above-described embodiments are merely for clarity of illustration of the disclosure, and are not intended to limit the scope of the disclosure. Other variations or modifications will be apparent to persons skilled in the art from the foregoing disclosure, and such variations or modifications are intended to be within the scope of the present disclosure.
Claims (9)
1. The oil distribution disc of the hydraulic plunger pump comprises an oil distribution disc body, wherein an oil absorption window and an oil discharge window are formed in the oil distribution disc body;
the oil distribution disc is characterized in that a first oil drain groove is formed in the surface of an oil drain area of the oil distribution disc body, and the communication part is used for communicating the first oil drain groove with the oil suction area.
2. The hydraulic ram pump oil distribution pan of claim 1, wherein: at least one oil return groove is further formed along the radial direction of the oil distribution disc body, one end of the oil return groove is communicated with the first oil drain groove, and the other end of the oil return groove extends to the outer edge of the oil distribution disc body.
3. The hydraulic ram pump oil distribution pan of claim 2, wherein: the first oil drain groove is distributed annularly along the circumference of the oil distribution disc body.
4. The hydraulic ram pump oil distribution pan of claim 3, wherein: the oil suction window and the oil discharge window are of semicircular waist-shaped hole structures, and the oil suction window and the oil discharge window are arranged inside the first oil discharge groove.
5. The hydraulic ram pump oil distribution pan of claim 3, wherein: the oil return grooves are four, are uniformly distributed along the circumferential direction of the oil distribution disc body, the shaft hole of the oil distribution disc body is further provided with an annular second oil drain groove, and a pair of oil return grooves are communicated with the second oil drain groove after passing through the first oil drain groove.
6. The hydraulic ram pump oil distribution pan of claim 5, wherein: the communication part is arranged on the sealing part between the first oil drain groove and the oil absorption area, and/or the communication part is arranged on the sealing part between the second oil drain groove and the oil absorption area.
7. The hydraulic ram pump oil distribution pan of claim 1, wherein: the sealing part comprises an oil absorption window sealing belt and an oil discharge window sealing belt, wherein the oil absorption window sealing belt is provided with a circle along the oil absorption window, and the oil discharge window sealing belt is provided with a circle along the oil discharge window.
8. The hydraulic ram pump oil distribution pan of claim 1, wherein: the oil distribution disc body is also provided with a plurality of positioning pin holes.
9. A plunger pump, characterized in that: an oil distribution pan comprising the hydraulic ram pump of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111004231.6A CN113653636B (en) | 2021-08-30 | 2021-08-30 | Hydraulic plunger pump oil distribution disc and plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111004231.6A CN113653636B (en) | 2021-08-30 | 2021-08-30 | Hydraulic plunger pump oil distribution disc and plunger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113653636A CN113653636A (en) | 2021-11-16 |
| CN113653636B true CN113653636B (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111004231.6A Active CN113653636B (en) | 2021-08-30 | 2021-08-30 | Hydraulic plunger pump oil distribution disc and plunger pump |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3547900B2 (en) * | 1996-03-22 | 2004-07-28 | 日立建機株式会社 | Axial piston type hydraulic pump |
| CN103939330B (en) * | 2014-04-29 | 2016-04-20 | 同济大学 | A kind of plunger hydraulic pump damping noise reduction thrust plate |
| CN205689403U (en) * | 2016-05-31 | 2016-11-16 | 宁波派锐森液压有限公司 | A kind of valve plate for piston pump |
| CN207377788U (en) * | 2017-10-31 | 2018-05-18 | 山东泰丰智能控制股份有限公司 | Aiding support formula valve plate |
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| CN113653636A (en) | 2021-11-16 |
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