CN110107796B - Straight-through type quantitative valve - Google Patents
Straight-through type quantitative valve Download PDFInfo
- Publication number
- CN110107796B CN110107796B CN201910490390.8A CN201910490390A CN110107796B CN 110107796 B CN110107796 B CN 110107796B CN 201910490390 A CN201910490390 A CN 201910490390A CN 110107796 B CN110107796 B CN 110107796B
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- China
- Prior art keywords
- quantitative
- hole
- valve core
- piston
- valve
- 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.)
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Links
- 239000004519 grease Substances 0.000 claims description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N27/00—Proportioning devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to a quantitative valve, in particular to a straight-through type quantitative valve, which comprises a quantitative valve body, wherein the quantitative valve body is provided with a quantitative hole, an oil inlet hole and an oil outlet hole, and the oil inlet hole and the oil outlet hole are communicated with the quantitative hole; one end of the quantitative valve core is provided with a quantitative valve rod, and the quantitative valve core is inserted in the quantitative hole in a sliding way; the quantitative piston is respectively inserted into the quantitative valve rod and the quantitative hole in a sliding way, and the quantitative piston and the quantitative valve core form an oil storage cavity; the limit nut is fixed at the tail end of the quantitative valve rod; the quantitative seat is fixed at one end of the quantitative hole, a valve rod hole is formed in the quantitative seat, and the quantitative valve rod and the limit nut are movably inserted into the valve rod hole; the valve core driving device is connected with the quantitative valve core and is used for driving the quantitative valve core to reciprocate in the quantitative hole; when the quantitative valve core and the quantitative piston reciprocate in the quantitative hole, the oil storage cavity is respectively communicated with the oil inlet hole and the oil outlet hole. The straight-through type quantitative valve has the advantages of simple structure, small volume, convenient use, few sealing points, capability of reducing leakage points and convenient maintenance.
Description
Technical Field
The invention relates to a metering valve, in particular to a straight-through metering valve.
Background
The existing quantitative valve comprises a quantitative valve body and a reversing valve, the reversing valve is in reversing through pneumatic operation, and the reversing valve is connected with the quantitative valve body, so that quantitative grease output is realized, and the quantitative valve is complex in structure.
Disclosure of Invention
In order to solve the problems, the invention provides a straight-through type quantitative valve with a simple structure, which comprises the following specific technical scheme:
the through type quantitative valve comprises a quantitative valve body, wherein the quantitative valve body is provided with a quantitative hole, an oil inlet hole and an oil outlet hole, and the oil inlet hole and the oil outlet hole are communicated with the quantitative hole; the quantitative valve core is arranged at one end of the quantitative valve core, the diameter of the quantitative valve rod is smaller than that of the quantitative valve core, and the quantitative valve core is inserted in the quantitative hole in a sliding manner; the quantitative piston is inserted on the quantitative valve rod in a sliding manner, and is also inserted in the quantitative hole in a sliding manner, and the quantitative piston and the quantitative valve core form an oil storage cavity; the limiting nut is fixed at the tail end of the quantitative valve rod and is used for enabling the quantitative piston to move towards the oil inlet along with the quantitative valve core; the quantitative seat is fixed at one end of the quantitative hole and is used for limiting the position of the quantitative piston, a valve rod hole is formed in the quantitative seat, and the quantitative valve rod and the limit nut are movably inserted into the valve rod hole; the valve core driving device is connected with the quantitative valve core and is used for driving the quantitative valve core to reciprocate in the quantitative hole; when the quantitative valve core and the quantitative piston reciprocate in the quantitative hole, the oil storage cavity is respectively communicated with the oil inlet hole and the oil outlet hole.
By adopting the technical scheme, when the quantitative valve core moves to one side of the oil inlet, the oil storage cavity is communicated with the oil inlet, grease enters the oil storage cavity through the oil inlet, the grease pushes the quantitative piston to move towards the limit nut during oil injection, the quantitative piston plugs the oil outlet at the moment, the quantitative valve core moves towards the oil outlet after the quantitative piston moves to the limit nut, the grease in the oil storage cavity reaches the set weight of the grease, then the quantitative valve core plugs the oil inlet, the oil storage cavity is communicated with the oil outlet, the quantitative piston is blocked by the quantitative seat, the quantitative valve rod and the limit nut continue to move towards the end part of the quantitative seat, the grease is extruded by the quantitative valve core, the grease is extruded from the oil outlet, and the grease in the oil storage cavity is completely extruded when the quantitative valve core is pressed to the quantitative piston, so that quantitative grease output is realized; and then the quantitative valve core moves towards the oil inlet hole, the quantitative piston moves along with the quantitative valve core, the quantitative piston blocks the oil outlet hole, and the steps are repeated to realize continuous oil feeding.
Preferably, the valve core driving device comprises a cylinder, the cylinder is fixed at one end of the quantitative valve body, and a piston rod of the cylinder is connected with the quantitative valve core.
By adopting the technical scheme, the cylinder is adopted to drive the quantitative valve core to reciprocate, and the structure is simple. The cylinder is connected with the electromagnetic valve.
Preferably, the valve core driving device comprises a reciprocating motor, the reciprocating motor is fixed at one end of the quantitative valve body, and the reciprocating motor is connected with the quantitative valve core.
By adopting the technical scheme, the reciprocating motor is an existing mature product, and the motor is connected with the reciprocating driving device to realize reciprocating movement. The reciprocating motor drives the quantitative valve core to reciprocate.
Preferably, the valve core driving device comprises a pneumatic seat, the pneumatic seat is fixed at one end of the quantitative valve body, a piston hole is arranged at one end of the pneumatic seat, the piston hole is positioned at one end of the quantitative valve body, an air hole A is arranged at the other end of the pneumatic seat, and the air hole A is communicated with the piston hole; an air hole B is formed in the quantitative valve body and communicated with the piston hole; and the pneumatic piston is slidably arranged in the piston hole and is connected with the other end of the quantitative valve core.
By adopting the technical scheme, the pneumatic seat is compact in structure, the integral structure of the through type quantitative valve can be effectively reduced, and the occupied space is reduced. The air hole A and the air hole B are respectively connected with the electromagnetic valve to realize pushing the pneumatic piston to reciprocate, thereby realizing the reciprocating movement of the quantitative valve core.
Preferably, the quantitative valve rod adjusting device further comprises a quantitative adjusting device, the quantitative adjusting device comprises a quantitative adjusting rod, the quantitative adjusting rod is screwed in a valve rod hole of the quantitative seat through threads, and the quantitative adjusting rod is used for adjusting the position of the quantitative valve rod.
Through adopting above-mentioned technical scheme, the displacement position of ration valve rod can be restricted to the ration regulation pole to the size when controlling oil storage chamber oil-out realizes the regulation of oil yield, enlarges the accommodation of oil yield, makes the application scope of through type ration valve wide.
Preferably, the quantitative adjusting rod is a differential head.
By adopting the technical scheme, the oil outlet quantity can be accurately adjusted by the differential head, and high-precision adjustment is realized.
Preferably, the valve core driving device comprises a push-pull electromagnet, the push-pull electromagnet is fixed at one end of the quantitative valve body, and an iron core of the push-pull electromagnet is connected with the quantitative valve core.
By adopting the technical scheme, the push-pull electromagnet is an existing mature product, and can realize reciprocating movement, so that the quantitative valve core is driven to reciprocate.
Compared with the prior art, the invention has the following beneficial effects:
the straight-through type quantitative valve provided by the invention has the advantages of simple structure, small volume, convenience in use, few sealing points, capability of reducing leakage points and convenience in maintenance.
Drawings
FIG. 1 is a schematic cross-sectional view of a straight-through metering valve, and is in an oil-in state;
FIG. 2 is a schematic cross-sectional view of a straight-through metering valve, and is in an oil-out state;
FIG. 3 is a schematic cross-sectional view of a straight-through type metering valve, and is in an oil-out state with maximum oil yield;
FIG. 4 is a front view of the metering valve body;
FIG. 5 is a schematic cross-sectional view of a metering valve body;
FIG. 6 is a schematic structural illustration of a metering valve cartridge;
FIG. 7 is a schematic cross-sectional view of a dosing piston;
fig. 8 is a schematic sectional structure of the dosing base.
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 8, the straight-through type quantitative valve comprises a quantitative valve body 1, wherein a quantitative hole 13, an oil inlet hole 11 and an oil outlet hole 12 are formed in the quantitative valve body 1, and the oil inlet hole 11 and the oil outlet hole 12 are communicated with the quantitative hole 13; the quantitative valve core 2, one end of the quantitative valve core 2 is provided with a quantitative valve rod 21, the diameter of the quantitative valve rod 21 is smaller than that of the quantitative valve core 2, the quantitative valve core 2 is inserted in the quantitative hole 13 in a sliding manner, and the quantitative valve core 2 is matched with the quantitative hole 13; the quantitative piston 3 is provided with a hole in the center of the quantitative piston 3, the quantitative piston 3 is slidably inserted on the quantitative valve rod 21, the quantitative piston 3 is also slidably inserted in the quantitative hole 13, the quantitative piston 3 is matched with the quantitative hole 13, and the quantitative piston 3 and the quantitative valve core 2 form an oil storage cavity; the limiting nut 8 is fixed at the tail end of the quantitative valve rod 21, and the limiting nut 8 is used for enabling the quantitative piston 3 to move towards the oil inlet hole 11 along with the quantitative valve core 2; the quantitative seat 4 is fixed at one end of the quantitative hole 13, the quantitative seat 4 is used for limiting the position of the quantitative piston 3, the quantitative seat 4 is provided with a valve rod hole 41, and the quantitative valve rod 21 and the limit nut 8 are movably inserted into the valve rod hole 41; the valve core driving device is connected with the quantitative valve core 2 and is used for driving the quantitative valve core 2 to reciprocate in the quantitative hole 13; when the quantitative valve core 2 and the quantitative piston 3 reciprocate in the quantitative hole 13, the oil storage cavity is respectively communicated with the oil inlet hole 11 and the oil outlet hole 12.
When the metering valve core 2 moves to one side of the oil inlet hole 11, the oil storage cavity is communicated with the oil inlet hole 11, grease enters the oil storage cavity through the oil inlet hole 11, the grease pushes the metering piston 3 to move towards the limit nut 8 during oil injection, the metering piston 3 plugs the oil outlet hole 12 at the moment, the metering valve core 2 moves towards the oil outlet hole 12 after the metering piston 3 moves to the limit nut 8, the grease in the oil storage cavity reaches the set weight of the grease at the moment, then the metering valve core 2 plugs the oil inlet hole 11, the oil storage cavity is communicated with the oil outlet hole 12, the metering piston 3 is blocked by the metering seat 4, the metering valve rod 21 and the limit nut 8 continue to move in the valve rod hole 41 and move towards the end part of the metering seat 4, the grease is extruded by the metering valve core 2, the grease is extruded from the oil outlet hole 12, and the grease in the oil storage cavity is completely extruded when the metering valve core 2 is pressed to the metering piston 3, so that the output of the grease is realized; then the quantitative valve core 2 moves towards the oil inlet hole 11, the quantitative piston 3 moves along with the quantitative valve core 2, the quantitative piston 3 blocks the oil outlet hole 12, and the steps are repeated to realize continuous oil feeding.
Specifically, the sealing ring 31 is installed inside the dosing piston 3, and the sealing ring 31 seals the dosing valve rod 21 and the dosing piston 3.
The outer circular surface of the quantitative piston 3 is also provided with a sealing ring, so that the quantitative piston 3 and the quantitative hole 13 are sealed.
The quantitative valve rod 2 is also provided with a sealing ring, so that the quantitative valve rod and the quantitative hole 13 are sealed.
The valve core driving device comprises a pneumatic seat 6, wherein the pneumatic seat 6 is fixed at one end of the quantitative valve body 1, a piston hole 61 is formed in one end of the pneumatic seat 6, the piston hole 61 is positioned at one end of the quantitative valve body 1, an air hole A62 is formed in the other end of the pneumatic seat 6, and the air hole A62 is communicated with the piston hole 61; the quantitative valve body 1 is provided with an air hole B14, and the air hole B14 is communicated with the piston hole 61; the air piston 7, the air piston 7 is slidably installed in the piston hole 61, and the air piston 7 is connected with the other end of the dosing valve core 2.
The pneumatic seat 6 has a compact structure, can effectively reduce the integral structure of the through type quantitative valve and reduces the occupied space. The air hole A62 and the air hole B14 are respectively connected with the electromagnetic valve to push the pneumatic piston 7 to reciprocate, so that the reciprocating movement of the quantitative valve core 2 is realized.
Example two
On the basis of the first example, the quantitative adjusting device is further included, the quantitative adjusting device comprises a quantitative adjusting rod 5, the quantitative adjusting rod 5 is screwed in the valve rod hole 41 of the quantitative seat 4, and the quantitative adjusting rod 5 is used for adjusting the position of the quantitative valve rod 21.
The quantitative adjusting rod 5 can limit the moving position of the quantitative valve rod 21, namely, the distance between the quantitative valve core 2 and the quantitative piston 3 when grease is extruded is controlled, so that the size of the oil storage cavity is controlled when oil is discharged, the adjustment of the oil outlet quantity is realized, the adjustment range of the oil outlet quantity is enlarged, and the application range of the straight-through type quantitative valve is wide.
Example III
The difference between the present embodiment and the second embodiment is the quantitative valve rod 5, and the quantitative adjusting rod 5 is a differential head in the present embodiment. The oil outlet quantity can be accurately adjusted by the differential head, and high-precision adjustment is realized.
Example IV
The first embodiment is different from the first embodiment in that the valve core driving device of the present embodiment includes a cylinder fixed at one end of the dosing valve body 1, and a piston rod of the cylinder is connected with the dosing valve core 2. The cylinder is adopted to drive the quantitative valve core 2 to reciprocate, and the structure is simple. The cylinder is connected with the electromagnetic valve.
Example five
The first embodiment is different from the first embodiment in that the valve core driving device of the present embodiment includes a reciprocating motor fixed at one end of the dosing valve body 1, and the reciprocating motor is connected with the dosing valve core 2. The reciprocating motor is an existing mature product, and the motor is connected with the reciprocating driving device to realize reciprocating movement. The reciprocating motor drives the quantitative valve core 2 to reciprocate.
Example six
The first embodiment is different from the first embodiment in that the valve core driving device of the present embodiment includes a push-pull electromagnet, the push-pull electromagnet is fixed at one end of the dosing valve body 1, and an iron core of the push-pull electromagnet is connected with the dosing valve core 2. The push-pull electromagnet is an existing mature product, and can realize reciprocating movement, so that the quantitative valve core 2 is driven to reciprocate.
Claims (5)
1. A straight-through type quantitative valve is characterized by comprising
The quantitative valve body is provided with a quantitative hole, an oil inlet hole and an oil outlet hole, and the oil inlet hole and the oil outlet hole are communicated with the quantitative hole;
the quantitative valve core is arranged at one end of the quantitative valve core, the diameter of the quantitative valve rod is smaller than that of the quantitative valve core, and the quantitative valve core is inserted in the quantitative hole in a sliding manner;
the quantitative piston is inserted on the quantitative valve rod in a sliding manner, and is also inserted in the quantitative hole in a sliding manner, and the quantitative piston and the quantitative valve core form an oil storage cavity;
the limiting nut is fixed at the tail end of the quantitative valve rod and is used for enabling the quantitative piston to move towards the oil inlet along with the quantitative valve core;
the quantitative seat is fixed at one end of the quantitative hole and is used for limiting the position of the quantitative piston, a valve rod hole is formed in the quantitative seat, and the quantitative valve rod and the limit nut are movably inserted into the valve rod hole;
the valve core driving device is connected with the quantitative valve core and is used for driving the quantitative valve core to reciprocate in the quantitative hole;
when the quantitative valve core and the quantitative piston reciprocate in the quantitative hole, the oil storage cavity is respectively communicated with the oil inlet hole and the oil outlet hole;
when the quantitative valve core moves to one side of the oil inlet hole, the oil storage cavity is communicated with the oil inlet hole, grease enters the oil storage cavity through the oil inlet hole, grease pushes the quantitative piston to move towards the limit nut during oil injection, the quantitative piston plugs the oil outlet hole at the moment, the quantitative valve core moves towards the oil outlet hole after the quantitative piston moves to the limit nut, the grease in the oil storage cavity reaches the set weight of the grease, then the quantitative valve core plugs the oil inlet hole, the oil storage cavity is communicated with the oil outlet hole, the quantitative piston is blocked by the quantitative seat, the quantitative valve rod and the limit nut continue to move in the valve rod hole and move towards the end part of the quantitative seat, the quantitative valve core extrudes the grease, and the grease is extruded from the oil outlet hole; then the quantitative valve core moves towards the oil inlet hole, the quantitative piston moves along with the quantitative valve core, the quantitative piston blocks the oil outlet hole, and the steps are repeated to realize continuous oil feeding;
the valve core driving device comprises a cylinder, the cylinder is fixed at one end of the quantitative valve body, and a piston rod of the cylinder is connected with the quantitative valve core;
the valve core driving device comprises a reciprocating motor, the reciprocating motor is fixed at one end of the quantitative valve body, and the reciprocating motor is connected with the quantitative valve core.
2. A straight-through metering valve as claimed in claim 1, wherein,
the valve core driving device comprises
The pneumatic seat is fixed at one end of the quantitative valve body, one end of the pneumatic seat is provided with a piston hole, the piston hole is positioned at one end of the quantitative valve body, the other end of the pneumatic seat is provided with an air hole A, and the air hole A is communicated with the piston hole;
an air hole B is formed in the quantitative valve body and communicated with the piston hole;
and the pneumatic piston is slidably arranged in the piston hole and is connected with the other end of the quantitative valve core.
3. A straight-through metering valve as claimed in claim 1, wherein,
also comprises a quantitative adjusting device, wherein the quantitative adjusting device comprises
The quantitative adjusting rod is screwed in the valve rod hole of the quantitative seat through threads and is used for adjusting the position of the quantitative valve rod.
4. A straight-through metering valve as claimed in claim 3, wherein,
the quantitative adjusting rod is a differential head.
5. A straight-through metering valve as claimed in claim 1, wherein,
the valve core driving device comprises a push-pull electromagnet, the push-pull electromagnet is fixed at one end of the quantitative valve body, and an iron core of the push-pull electromagnet is connected with the quantitative valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910490390.8A CN110107796B (en) | 2019-06-06 | 2019-06-06 | Straight-through type quantitative valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910490390.8A CN110107796B (en) | 2019-06-06 | 2019-06-06 | Straight-through type quantitative valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110107796A CN110107796A (en) | 2019-08-09 |
| CN110107796B true CN110107796B (en) | 2024-01-02 |
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ID=67494199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910490390.8A Active CN110107796B (en) | 2019-06-06 | 2019-06-06 | Straight-through type quantitative valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN110107796B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339686A (en) * | 2021-07-12 | 2021-09-03 | 中国铁建重工集团股份有限公司 | Rock drill and valve-controlled measurable lubricating system thereof |
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| CA2976664A1 (en) * | 2016-08-29 | 2018-02-28 | General Electric Technology Gmbh | Bi-directional oil-flow adapter for attaching to a valve-controlled port of a transformer |
| CN210069450U (en) * | 2019-06-06 | 2020-02-14 | 新泰市佳兴液压机械有限公司 | Straight-through type proportional valve |
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2019
- 2019-06-06 CN CN201910490390.8A patent/CN110107796B/en active Active
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