CN220416253U - Micro oil supplementing valve for hydraulic diaphragm metering pump adopting hard valve ball - Google Patents
Micro oil supplementing valve for hydraulic diaphragm metering pump adopting hard valve ball Download PDFInfo
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- CN220416253U CN220416253U CN202321216535.3U CN202321216535U CN220416253U CN 220416253 U CN220416253 U CN 220416253U CN 202321216535 U CN202321216535 U CN 202321216535U CN 220416253 U CN220416253 U CN 220416253U
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- flow passage
- ball
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- 230000001502 supplementing effect Effects 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 51
- 239000000919 ceramic Substances 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 239000008358 core component Substances 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 45
- 239000010720 hydraulic oil Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model discloses a micro oil supplementing valve for a hydraulic diaphragm metering pump, which comprises a valve body, wherein a valve cavity is arranged in the valve body, a valve core component is arranged in the valve cavity in a matched manner, the valve core component comprises a valve seat, a hard valve ball, a spring piece and a valve ball seat, an oil supplementing flow passage is arranged in the valve seat, an oil sealing port is arranged at the position, adjacent to the hard valve ball, of the oil supplementing flow passage, the hard valve ball is abutted against the oil sealing port through the spring piece, and a sealing gasket is arranged between the valve seat and the valve ball seat. According to the utility model, the hard valve ball is matched with the hard valve seat through the optimization design, and the ceramic valve ball is particularly preferred, so that the matching installation of the high-precision micro flow channel is realized; and the sealing gasket structure is optimally arranged to reduce the abrasion of the valve seat to the valve ball seat.
Description
Technical Field
The utility model relates to the technical field of oil supplementing valves, in particular to a micro oil supplementing valve for a hydraulic diaphragm metering pump adopting a hard valve ball.
Background
The conventional metering pump oil supplementing structure mostly adopts a natural oil supplementing mode, and normal pressure hydraulic oil is sucked into the cavity by utilizing the negative pressure of the piston sealing cavity, so that the hydraulic oil loss generated by acting of the piston is compensated. The oil supplementing mode has the problems that oil supplementing is not timely, oil supplementing quantity cannot be controlled, a piston cavity is easy to superpose, and the like, so that the diaphragm of the metering pump cannot accurately reach the designed deformation quantity, the phenomena of insufficient pressure, too small flow or dead spots in the diaphragm in a short time, scalding of a motor of the metering pump, and the like occur, the normal work of the piston is seriously influenced, and the service efficiency and the service life of the metering pump are greatly reduced.
If the publication number is CN204267271U, a mechanical seal type composite oil supplementing valve structure for a metering pump is disclosed, the mechanical seal type composite oil supplementing valve structure comprises a valve body and a seal structure arranged on the outer edge of the upper end of the valve body, and a valve rod is arranged in a central hole of the valve body; the application range of the spring is improved by adopting an adjusting mode of an adjusting nut, and one spring can be used for the requirements of various metering pump working conditions; the positioning nut and the back cap are adopted to fix the adjustment quantity of the spring, so that loosening is prevented, and compared with a conventional check ball type oil supplementing valve, the micro-motion oil supplementing valve can quantitatively supplement oil at fixed time, and the phenomena of overpressure of a front cavity, rupture of a diaphragm, fever of a motor and the like caused by excessive oil supplementing can not be generated; the utility model replaces the original sealing ring by the sealing structure, greatly reduces the condition of end face leakage, and improves the service life and the metering accuracy of the pump body.
Referring to fig. 9, the internal structure view of the conventional oil compensating valve mainly adopts a valve rod 300 to cooperate with a valve body to realize sealing and opening and closing of an internal flow passage, and has the following defects: 1. the machining precision cannot be guaranteed, 2, the surface finish is too poor, 3, the hardness is too low, and 4, the oil supplementing valve is too large in through diameter and cannot be applied to tiny flow oil supplementing.
Disclosure of Invention
Aiming at the problems, the utility model aims to provide the micro oil supplementing valve for the hydraulic diaphragm metering pump, which adopts the hard valve ball, and the hard valve ball is combined with the hard valve seat to realize hard sealing fit, so that the micro oil supplementing valve is particularly suitable for the micro oil supplementing valve.
The technical problems solved by the utility model can be realized by adopting the following technical scheme:
the utility model provides an adopt hydraulic pressure diaphragm metering pump of stereoplasm valve ball to use micro oil supplementing valve, includes the valve body, be equipped with the valve pocket in the valve body, the valve pocket internal fit is equipped with the case subassembly, the case subassembly includes disk seat, stereoplasm valve ball, spring spare and valve ball seat, be equipped with the oil supplementing runner in the disk seat, the oil supplementing runner is equipped with the oil sealing mouth adjacent stereoplasm valve ball department, stereoplasm valve ball through the spring spare conflict in the oil sealing mouth, the disk seat with be equipped with sealing washer between the valve ball seat.
The valve ball seat is provided with a valve ball accommodating cavity, the lower part of the valve ball accommodating cavity is correspondingly provided with a valve ball flow passage, a spring limiting step is arranged in the valve ball flow passage, and one end of the spring piece is abutted to the spring limiting step.
The middle part of the sealing gasket is provided with a flow passage through hole, and the aperture of the flow passage through hole is larger than the sphere diameter of the hard valve ball.
The hard valve ball is made of ceramic, and the hardness of the hard valve ball is 50-60 HRC.
The hardness of the valve seat is smaller than 4-8 HRC relative to the hardness of the hard valve ball.
The precision grade of the ceramic valve ball is G20-G10.
The valve ball containing cavity is provided with a valve ball step surface, and the distance between the valve ball step surface and the oil sealing port is larger than the ball diameter size of the hard valve ball.
The valve ball seat end face is provided with a first sealing waterline, the valve seat end face is provided with a second sealing waterline, and the first sealing waterline and the second sealing waterline are respectively matched with the sealing gasket in a corresponding mode.
The valve body is internally provided with an oil inlet flow passage, the oil inlet flow passage comprises a main flow passage and branch flow passages positioned at two sides of the upper part of the main flow passage, and the lower part of the main flow passage is communicated with an oil supplementing flow passage.
The sealing gasket is made of red copper sealing gasket.
Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the hard valve ball is matched with the hard valve seat through the optimization design, and particularly, the ceramic valve ball is preferably adopted, so that the high-precision micro-flow passage is matched and installed, and the high-precision micro-flow passage has extremely high surface smoothness; and the sealing gasket structure is optimally arranged to reduce the abrasion of the valve seat to the valve ball seat.
The features of the present utility model will be apparent from the following detailed description of the preferred embodiments, taken in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a schematic overall sectional view of the present utility model;
FIG. 2 is a schematic cross-sectional view of a valve cartridge assembly of the present utility model;
FIG. 3 is a schematic diagram of the overall structure of the present utility model;
FIG. 4 is a schematic cross-sectional view of a valve body of the present utility model;
FIG. 5 is a schematic view of a valve core assembly of the present utility model;
FIG. 6 is a schematic view of a valve seat structure according to the present utility model;
FIG. 7 is a schematic view of a seal gasket of the present utility model;
FIG. 8 is a schematic view of the valve ball and valve seat mating mounting structure of the present utility model;
fig. 9 is a schematic diagram of a metering pump oil compensating valve in the prior art.
Detailed Description
The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.
Referring to fig. 1 to 8, this embodiment discloses a micro oil replenishing valve for a hydraulic diaphragm metering pump using a hard valve ball, which includes a valve body 100, a threaded portion 130 is usually disposed outside the valve body 100, and is used for being directly mounted in cooperation with a pump body of the hydraulic diaphragm metering pump, so as to replenish internal hydraulic oil, an oil inlet flow passage 110 is disposed in the valve body 100, the oil inlet flow passage 110 includes a main flow passage 111 and branch flow passages 112 disposed on two sides of an upper portion of the main flow passage 111, a lower portion of the main flow passage 111 is used for communicating with an oil replenishing flow passage 212, wherein the branch flow passage 112 is usually communicated with a hydraulic oil cavity in the pump body of the hydraulic diaphragm metering pump, and enters the main flow passage 111 through the branch flow passage 112, and is combined with a valve core assembly 200, so as to realize oil replenishing operation.
The valve body 100 is internally provided with the valve cavity 120, the valve cavity 120 is internally matched with the valve core assembly 200, the valve core assembly 200 comprises a valve seat 210, a hard valve ball 240, a spring member 250 and a valve ball seat 230, an oil supplementing flow passage 212 is arranged in the valve seat 210, an oil sealing port 213 is arranged at a position, adjacent to the hard valve ball 240, of the oil supplementing flow passage 212, the hard valve ball 240 is abutted against the oil sealing port 213 through the spring member 250, the spring member 250 can select spring members 250 with different specifications according to different specifications of oil supplementing valves for matching oil supplementing valves, a sealing gasket 220 is arranged between the valve seat 210 and the valve ball seat 230, the sealing gasket 220 is made of a red copper sealing gasket, the sealing gasket 220 preferably forms a spacing effect, meanwhile, a good sealing effect is formed, a flow passage through hole 221 is formed in the middle of the sealing gasket 220, the pore diameter of the flow passage through hole 221 is larger than that of the hard valve ball 240, the hard valve ball 240 is convenient to move, the valve seat 210 adopts hard processing, the hardness of the valve seat 210 is smaller than 4 HRC-8 HRC, the HRC structure is preferably arranged, the valve seat 210 can directly abutted against the valve seat 230 to form the hardness of the valve seat 230, the valve seat 230 is prevented from being worn, and the valve seat 230 is usually far from being worn.
The valve ball seat 230 is provided with a valve ball accommodating cavity 232, the valve ball accommodating cavity 232 is provided with a valve ball step surface 234, the distance between the valve ball step surface 234 and the oil sealing port 213 is larger than the ball diameter size of the hard valve ball 240, the lower part of the valve ball accommodating cavity 232 is correspondingly provided with a valve ball runner 233, the valve ball step surface 234 is positioned at the upper end surface of the valve ball runner 233, a spring limiting step 235 is arranged in the valve ball runner 233, one end of a spring piece 250 is abutted against the spring limiting step 235, and when the hard valve ball 240 is separated from the oil sealing port 213, the integral penetration of the oil supplementing runner 212, the valve ball accommodating cavity 232 and the valve ball runner 33 can be realized, and the completion of oil supplementing to the inside of the pump body is realized.
Preferably, the hard valve ball 240 is a ceramic valve ball, the hardness of the hard valve ball 240 is 45-55 HRC, and the precision grade of the ceramic valve ball is G20-G10.
The end surface of the valve ball seat 230 is provided with a first sealing water line 231, the end surface of the valve seat 210 is provided with a second sealing water line 211, and the first sealing water line 231 and the second sealing water line 211 are correspondingly matched with the sealing gasket 220 for realizing a good sealing structure.
According to the utility model, the hard valve ball is matched with the hard valve seat through the optimization design, and the ceramic valve ball is particularly preferred, so that the matching installation of the high-precision micro flow channel is realized; and the sealing gasket structure is optimally arranged to reduce the abrasion of the valve seat to the valve ball seat.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, but any simple modification, equivalent variation or modification made to the above embodiments according to the technical principles of the present utility model still falls within the scope of the technical solutions of the present utility model.
Claims (10)
1. The utility model provides an adopt hydraulic pressure diaphragm metering pump of stereoplasm valve ball to use micro-oil replenishing valve, includes the valve body, be equipped with the valve pocket in the valve body, the valve pocket internal fit is equipped with case subassembly, its characterized in that: the valve core assembly comprises a valve seat, a hard valve ball, a spring element and a valve ball seat, wherein an oil supplementing flow passage is arranged in the valve seat, an oil sealing port is arranged at a position, adjacent to the hard valve ball, of the oil supplementing flow passage, the hard valve ball is abutted to the oil sealing port through the spring element, and a sealing gasket is arranged between the valve seat and the valve ball seat.
2. The micro oil replenishing valve for a hydraulic diaphragm metering pump adopting a hard valve ball according to claim 1, wherein the micro oil replenishing valve is characterized in that: the valve ball seat is provided with a valve ball accommodating cavity, the lower part of the valve ball accommodating cavity is correspondingly provided with a valve ball flow passage, a spring limiting step is arranged in the valve ball flow passage, and one end of the spring piece is abutted to the spring limiting step.
3. The micro oil replenishing valve for a hydraulic diaphragm metering pump adopting a hard valve ball according to claim 1, wherein the micro oil replenishing valve is characterized in that: the middle part of the sealing gasket is provided with a flow passage through hole, and the aperture of the flow passage through hole is larger than the sphere diameter of the hard valve ball.
4. The micro oil replenishing valve for a hydraulic diaphragm metering pump adopting a hard valve ball according to claim 1, wherein the micro oil replenishing valve is characterized in that: the hard valve ball is made of ceramic, and the hardness of the hard valve ball is 50-60 HRC.
5. The micro oil replenishing valve for a hydraulic diaphragm metering pump adopting a hard valve ball according to claim 4, wherein the micro oil replenishing valve is characterized in that: the hardness of the valve seat is smaller than 4-8 HRC relative to the hardness of the hard valve ball.
6. The micro oil replenishing valve for a hydraulic diaphragm metering pump adopting a hard valve ball according to claim 4, wherein the micro oil replenishing valve is characterized in that: the precision grade of the ceramic valve ball is G20-G10.
7. The micro oil replenishing valve for a hydraulic diaphragm metering pump adopting a hard valve ball according to claim 2, wherein the micro oil replenishing valve is characterized in that: the valve ball containing cavity is provided with a valve ball step surface, and the distance between the valve ball step surface and the oil sealing port is larger than the ball diameter size of the hard valve ball.
8. The micro oil replenishing valve for a hydraulic diaphragm metering pump adopting a hard valve ball according to claim 2, wherein the micro oil replenishing valve is characterized in that: the valve ball seat end face is provided with a first sealing waterline, the valve seat end face is provided with a second sealing waterline, and the first sealing waterline and the second sealing waterline are respectively matched with the sealing gasket in a corresponding mode.
9. The micro oil replenishing valve for a hydraulic diaphragm metering pump adopting a hard valve ball according to claim 1, wherein the micro oil replenishing valve is characterized in that: the valve body is internally provided with an oil inlet flow passage, the oil inlet flow passage comprises a main flow passage and branch flow passages positioned at two sides of the upper part of the main flow passage, and the lower part of the main flow passage is communicated with an oil supplementing flow passage.
10. The micro oil replenishing valve for a hydraulic diaphragm metering pump adopting a hard valve ball according to claim 8, wherein the micro oil replenishing valve is characterized in that: the sealing gasket is made of red copper sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321216535.3U CN220416253U (en) | 2023-05-19 | 2023-05-19 | Micro oil supplementing valve for hydraulic diaphragm metering pump adopting hard valve ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321216535.3U CN220416253U (en) | 2023-05-19 | 2023-05-19 | Micro oil supplementing valve for hydraulic diaphragm metering pump adopting hard valve ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220416253U true CN220416253U (en) | 2024-01-30 |
Family
ID=89660125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321216535.3U Active CN220416253U (en) | 2023-05-19 | 2023-05-19 | Micro oil supplementing valve for hydraulic diaphragm metering pump adopting hard valve ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220416253U (en) |
-
2023
- 2023-05-19 CN CN202321216535.3U patent/CN220416253U/en active Active
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