CN107061969B - Multi-point type oil injection pump - Google Patents
Multi-point type oil injection pump Download PDFInfo
- Publication number
- CN107061969B CN107061969B CN201710234611.6A CN201710234611A CN107061969B CN 107061969 B CN107061969 B CN 107061969B CN 201710234611 A CN201710234611 A CN 201710234611A CN 107061969 B CN107061969 B CN 107061969B
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- China
- Prior art keywords
- valve core
- valve body
- valve
- oil
- oil outlet
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- 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
- F16N13/00—Lubricating-pumps
- F16N13/02—Lubricating-pumps with reciprocating piston
- F16N13/06—Actuation of lubricating-pumps
- F16N13/16—Actuation of lubricating-pumps with fluid drive
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- 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
- F16N2210/00—Applications
- F16N2210/14—Bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Reciprocating Pumps (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention provides a multi-point type oil injection pump, which comprises a valve body, a valve core, an oil inlet joint, an adjusting plug, an air cylinder, an air inlet joint, a piston and a first spring, wherein the valve body is provided with a valve core channel, part of the valve core is accommodated in the valve core channel, the oil inlet joint is communicated with the valve core channel, the adjusting plug blocks the free end of the valve core channel, the air cylinder is connected with the valve body, the air inlet joint is communicated with the air cylinder, the piston is positioned in the air cylinder and is abutted against the valve core, and the first spring is connected between the piston and the valve body and is sleeved outside the valve core in a penetrating manner; the valve body is provided with an exhaust hole communicated with the cylinder, and the valve body is provided with a plurality of valve body oil outlet holes which are sequentially distributed along the lengthwise extension direction of the valve body; the valve core is provided with a valve core inner cavity which is communicated with a plurality of valve core oil outlet holes annularly distributed on the valve core inner cavity. The valve core is pushed to move through inflation, so that the valve core oil outlet hole is sequentially communicated with the valve body oil outlet holes positioned on different positions, a plurality of oil supply passages are formed between the valve core oil outlet hole and the different valve body oil outlet holes, the oil injection efficiency and the oil injection stability are improved, and the oil injection cost is reduced.
Description
Technical Field
The invention relates to the technical field of oil injection devices, in particular to a multi-point type oil injection pump.
Background
The bearing is a common mechanical part, and is a part for determining the relative movement position of a rotating shaft and other parts, and mainly plays a role in supporting or guiding. Its main function is to support the mechanical rotating body to reduce the friction coefficient of mechanical load of equipment in the transmission process. The bearing is widely applied to machine tools, motors, transporters, generators and the like. The life of the bearings is critical to the use of the equipment, but the bearings are typically operated in high speed, high temperature, and heavy load environments, and their life is greatly affected.
Generally, a plurality of bearings are required to be installed in one device, for example, a spray head of a core device used in a flue gas treatment system of a waste incineration power plant, and a plurality of bearings rotating at high speed are installed on the spray head. Oil lubrication is a common way to prolong the service life of a bearing and improve the wear condition of the bearing, and an oil-gas lubrication device is generally used for conveying oil gas to the bearing for lubrication. However, in the prior art, the oil in the oil-air lubrication device is poured into the oil-air mixing chamber at one time, so that the oil and the air are not mixed uniformly, and the oil-air lubrication device can cause over-lubrication or under-lubrication in the process of conveying the oil and the air to the bearing.
In view of the above, there is a need for an improved prior art oil pump to solve the above problems.
Disclosure of Invention
The invention aims to disclose a multi-point type oil injection pump, which is used for enabling a valve core oil outlet and different valve body oil outlets to form a plurality of oil supply passages, improving the oil injection efficiency and the oil injection stability and reducing the oil injection cost.
In order to achieve the purpose, the invention provides a multi-point type oil injection pump which comprises a valve body, a valve core, an oil inlet joint, an adjusting plug, a cylinder, an air inlet joint, a piston and a first spring, wherein the valve body is provided with a valve core channel, part of the valve core is accommodated in the valve core channel, the oil inlet joint is communicated with the valve core channel, the adjusting plug blocks the free end of the valve core channel, the cylinder is connected with the valve body, the air inlet joint is communicated with the cylinder, the piston is positioned in the cylinder and is abutted against the valve core, and the first spring is connected between the piston and the valve body and is sleeved outside the valve core in a penetrating manner; the valve body is provided with an exhaust hole communicated with the cylinder, and the valve body is provided with a plurality of valve body oil outlet holes which are sequentially distributed along the lengthwise extension direction of the valve body; the valve core is provided with a valve core inner cavity, the valve core inner cavity is communicated with a plurality of valve core oil outlet holes annularly distributed on the valve core inner cavity, a second spring is arranged in the valve core inner cavity, a valve core plug is freely plugged in the valve core inner cavity, and a steel ball which is pressed by the second spring and covers the valve core plug is arranged in the valve core inner cavity; the valve core is pushed to move in the valve core channel by air inlet of the air inlet connector, the valve core oil outlet is sequentially communicated with the valve body oil outlet positioned on different positions, oil in a closed cavity formed by the valve core and the adjusting plug pushes away the steel ball under the action of pressure to enter a cavity in the valve core, and then the oil flows into the valve body oil outlet from the valve core oil outlet to finish the oil injection process.
In some embodiments, the adjusting plug comprises an adjusting foot disposed outside the valve body and a plug blocking the passage of the valve element, and the plug is provided with a plurality of rings of grooves arranged in sequence along the longitudinal extension direction of the plug.
In some embodiments, the valve body is fixedly connected with the cylinder through a screw connection mode.
In some embodiments, the air conditioner further comprises a solenoid valve externally connected to the air inlet joint.
In some embodiments, the valve further comprises a third spring connected between the piston and the valve body and inserted between the valve core and the first spring.
In some embodiments, the valve further comprises a spring stop cover fixed on the valve core, and one end of each of the first spring and the third spring is fixed on the spring stop cover.
In some embodiments, the valve further comprises a mounting bracket and a nut, wherein the mounting bracket is fixed on the valve body through the nut.
In some embodiments, a thimble housed in the second spring is also included.
In some embodiments, a plurality of valve body oil outlet holes are distributed on the valve body.
In some embodiments, the valve further comprises a passage plug matched with the oil outlet of the valve body.
Compared with the prior art, the invention has the beneficial effects that: the valve core is pushed to move through inflation, so that the valve core oil outlet hole is sequentially communicated with the valve body oil outlet holes positioned on different positions, a plurality of oil supply passages are formed between the valve core oil outlet hole and the different valve body oil outlet holes, the oil injection efficiency and the oil injection stability are improved, and the oil injection cost is reduced.
Drawings
FIG. 1 is an overall configuration view of a multipoint type of the pump of the present invention;
FIG. 2 is an axial cross-sectional view of a multi-point grease pump of the present invention;
FIG. 3 is a schematic structural view of the valve cartridge shown in FIG. 2;
fig. 4 is a schematic structural view of the adjusting plug shown in fig. 2.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
The multi-point type oil injection pump shown in fig. 1-4 is mainly used for a flue gas treatment system of a waste incineration power plant, and stably conveys lubricating oil for an oil-gas lubricating device of a high-speed motor in the system, so that oil and gas can be mixed stably and uniformly at a constant amount, and the normal operation of the oil-gas lubricating device is ensured.
The multi-point type oil injection pump comprises a valve body 2 provided with a valve core channel 200, a valve core 8 partially accommodated in the valve core channel 200, an oil inlet joint 3 communicated with the valve core channel 200, an adjusting plug 6 blocking the free end of the valve core channel 200, a cylinder 1 in threaded connection with the valve body 2, an air inlet joint 5 communicated with the cylinder 1, a piston 7 located in the cylinder 1 and abutted against the valve core 8, and a first spring 911 connected between the piston 7 and the valve body 2 and sleeved outside the valve core 8 in a penetrating manner. And a mounting bracket 4 and a union 41, wherein the mounting bracket 4 is fixed on the valve body 2 through the union 41, and the multi-point type oil injection pump is mounted on equipment (not shown) through the mounting bracket 4. The piston 7 is provided with an O-ring 921.
In this embodiment, the valve body 2 is a hexagonal prism, and each prism surface is provided with three valve body oil outlet holes 20 sequentially arranged along the longitudinal extension direction of the valve body 2, so as to form three groups of valve body oil outlet holes 20 annularly arranged. Of course, the specific number of the valve body oil outlet holes 20 can be increased or decreased as required. And a passage plug 201 matched with the valve body oil outlet hole 20 is further arranged, so that the idle valve body oil outlet hole 20 is plugged.
The valve core 8 is provided with a valve core inner cavity 800, the valve core inner cavity 800 is communicated with a plurality of valve core oil outlet holes 80, and in the embodiment, the number of the valve core oil outlet holes 80 is six, and the valve core oil outlet holes are annularly distributed on the valve core inner cavity 800 and are located in the same vertical plane. The number of the spool oil outlet holes 80 should be the same as the number of the valve body oil outlet holes 20 located in the same vertical plane, and in addition, the size of an included angle between the adjacent spool oil outlet holes 80 should be the same as the size of an included angle between the adjacent valve body oil outlet holes 20 located in the same vertical plane, so that the spool oil outlet holes 80 can be just communicated with the valve body oil outlet holes 20.
The spool 8 includes a first spool section 81 partially received in the spool passage 200 and a second spool section 82 fully received in the spool passage 200, the second spool section 82 being provided with an in-spool cavity 800.
A second spring 912 is arranged in the valve core inner cavity 800, the valve core plug 95 is freely plugged in the valve core inner cavity 800, and a steel ball 94 which is pressed by the second spring 912 and covers the valve core plug 95 is arranged in the valve core inner cavity 800. The second spring 912 further has an ejector pin 93 for supporting the second spring 912.
The adjusting plug 6 comprises an adjusting foot 61 arranged outside the valve body 2 and a plug 62 plugged in the valve core channel 200, and the plug 62 is provided with a plurality of circles of grooves 620 sequentially arranged along the lengthwise extending direction of the plug 62. In this embodiment, the number of the grooves 620 is eight, and the O-ring 922 is provided on the groove 620 located at the innermost side of the spool passage 200. An O-shaped ring 923 is arranged between the adjusting foot 61 and the valve body 2. By cutting along the groove 620, the length of the plug 62 can be reduced, so that the volume of a closed chamber (not shown) formed by the valve core 8 and the adjusting plug 6 can be increased, the oil storage capacity can be increased, and more oil outlet holes 20 of the valve body can be supplied with oil. As shown in fig. 1, the valve core 8 moves to the right to cover the oil inlet joint 3, so that a closed chamber can be formed with the adjusting plug 6, and the closed chamber is used for pre-storing oil.
The valve further comprises a third spring 913, and the third spring 913 is connected between the piston 7 and the valve body 2 and is sleeved between the valve element 8 and the first spring 911. The valve further comprises a spring stop cover 52 fixed on the valve core 8, one end of each of the first spring 911 and the third spring 913 is fixed on the spring stop cover 52, and the other end of each of the first spring 911 and the third spring 913 is fixed on the valve body 2.
And the air-conditioning system also comprises an electromagnetic valve (not shown) externally connected with the air inlet joint 5 and used for controlling the air charging and discharging of the air cylinder 1. The valve body 2 is provided with an exhaust hole 96 communicated with the cylinder 1, and the exhaust hole 96 is communicated with the cylinder 1 through a passage 97.
The oil inlet joint 3 is formed with an oil inlet through hole 30, and oil enters the spool passage 200 through the oil inlet through hole 30. The intake joint 5 is formed with an intake through hole 50, and compressed air is introduced into the cavity 10 of the cylinder 1 through the intake through hole 50. The cartridge plug 95 is formed with a through hole 950 to communicate the cartridge passage 200 with the cartridge interior cavity 800.
The use process of the multi-point type oil injection pump is as follows: compressed air enters the cylinder 1 through the air inlet joint 5, and under the action of air pressure, the piston 7 moves towards the valve body 2 and pushes the valve core 8 to move in the valve core channel 200, and air originally existing in the cavity 10 of the cylinder 1 is exhausted through the exhaust hole 96. When the valve core 8 continues to move rightwards, the oil inlet through hole 30 of the oil inlet joint 3 can be covered, the valve core 8 and the adjusting plug 6 form a closed cavity, oil in the closed cavity passes through the valve core plug 95 under the action of pressure and pushes the steel ball 94 to enter the valve core inner cavity 800, and then flows into the valve body oil outlet hole 20 from the valve core oil outlet hole 80. As the valve core 8 gradually moves rightwards, the valve core oil outlet 80 can be sequentially communicated with the valve body oil outlet 20 at different positions, so that a plurality of oil supply passages are formed to directly fill oil into bearings at different positions or uniformly distribute and convey the oil into an oil-gas mixing chamber (not shown), and the oil and the gas can be uniformly mixed. When the valve core 8 moves to the rightmost end, the electromagnetic valve works, the air inlet joint 5 stops air inlet, and air in the cavity 10 is released. The first spring 911 and the third spring 913 return and push the piston 7 to the home position. The valve core 8 moves leftwards to enable the oil inlet connector 3 to be communicated with the valve core channel 200 again, and the second spring 912 resets and pushes the steel ball 94 to block the valve core plug 95. The above is a primary oil injection process.
The above-listed detailed description is merely a detailed description of possible embodiments of the present invention, and it is not intended to limit the scope of the invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention are intended to be included within the scope of the present invention.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A multi-point type oil injection pump is characterized by comprising a valve body, a valve core, an oil inlet joint, an adjusting plug, an air cylinder, an air inlet joint, a piston and a first spring, wherein the valve body is provided with a valve core channel, part of the valve core is accommodated in the valve core channel, the oil inlet joint is communicated with the valve core channel, the adjusting plug blocks the free end of the valve core channel, the air cylinder is connected with the valve body, the air inlet joint is communicated with the air cylinder, the piston is positioned in the air cylinder and is abutted against the valve core, and the first spring is connected between the piston and the valve body and is sleeved outside the valve core in a penetrating manner; the valve body is provided with an exhaust hole communicated with the cylinder, and the valve body is provided with a plurality of valve body oil outlet holes which are sequentially distributed along the lengthwise extension direction of the valve body;
the valve core is provided with a valve core inner cavity, the valve core inner cavity is communicated with a plurality of valve core oil outlet holes annularly distributed on the valve core inner cavity, the number of the valve core oil outlet holes is the same as that of the valve body oil outlet holes positioned in the same vertical plane, and the size of an included angle between the adjacent valve core oil outlet holes is the same as that of an included angle between the adjacent valve body oil outlet holes positioned in the same vertical plane; a second spring is arranged in the cavity in the valve core, a valve core plug is freely plugged in the cavity in the valve core, and a steel ball which is pressed by the second spring and blocks the valve core plug is arranged in the cavity in the valve core;
the valve core is pushed to move in the valve core channel by air inlet of the air inlet connector, the valve core oil outlet is sequentially communicated with the valve body oil outlet positioned on different positions, oil in a closed cavity formed by the valve core and the adjusting plug pushes away the steel ball under the action of pressure to enter a cavity in the valve core, and then the oil flows into the valve body oil outlet from the valve core oil outlet to finish the oil injection process.
2. The multipoint grease pump according to claim 1, characterized in that the adjusting plugs comprise adjusting feet placed outside the valve body and plugs plugged in the valve core channels, said plugs being provided with several rings of grooves arranged in sequence along their longitudinal extension.
3. The multipoint filling pump according to claim 1, wherein the valve body is fixedly connected to the cylinder by screwing.
4. The multi-point grease pump according to claim 1, further comprising a solenoid valve externally attached to the inlet fitting.
5. The multipoint grease pump according to claim 1, further comprising a third spring coupled between the piston and the valve body and disposed between the spool and the first spring.
6. The multipoint grease pump according to claim 5, further comprising a spring stop cap secured to the spool, wherein the first and third springs are each secured at one end to the spring stop cap.
7. The multipoint grease pump according to claim 1, further comprising a mounting bracket and a union nut, wherein the mounting bracket is fixed to the valve body by the union nut.
8. The multi-point grease pump according to claim 1, further comprising a thimble housed in the second spring.
9. The multipoint grease pump according to claim 1, wherein a plurality of valve body oil outlet holes are circumferentially distributed on the valve body.
10. The multipoint grease pump according to claim 9, further comprising a passage plug that mates with the valve body oil outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234611.6A CN107061969B (en) | 2017-04-11 | 2017-04-11 | Multi-point type oil injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234611.6A CN107061969B (en) | 2017-04-11 | 2017-04-11 | Multi-point type oil injection pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107061969A CN107061969A (en) | 2017-08-18 |
| CN107061969B true CN107061969B (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710234611.6A Active CN107061969B (en) | 2017-04-11 | 2017-04-11 | Multi-point type oil injection pump |
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| Country | Link |
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| CN (1) | CN107061969B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692172B (en) * | 2018-07-06 | 2023-08-15 | 浙江流遍机械润滑有限公司 | Pneumatic travel split-flow type multi-point grease lubrication pump |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87212360U (en) * | 1987-10-12 | 1988-06-22 | 吴建萍 | Sequencing lubricant pump for multipoint |
| JP2000161036A (en) * | 1998-11-30 | 2000-06-13 | Mikuni Adec Corp | Oil pump |
| CN2903643Y (en) * | 2006-05-17 | 2007-05-23 | 贺勍 | Leakless type multi point single automatically continuous lubricating apparatus |
| CN201050672Y (en) * | 2007-05-14 | 2008-04-23 | 卢文学 | Pneumatic grease transfusing device |
| CN102889463A (en) * | 2012-10-24 | 2013-01-23 | 杨洁 | Multi-line multi-point parallel automatic lubricating pump with single plunger |
| KR101360983B1 (en) * | 2013-05-21 | 2014-02-11 | 주식회사 한일루브텍 | Lubrication pump |
| CN205032696U (en) * | 2015-09-28 | 2016-02-17 | 宁波隆源精密机械有限公司 | Point spouts to concentrate and connects with adjustable in die mould |
| CN206647735U (en) * | 2017-04-11 | 2017-11-17 | 无锡卓能环境科技有限公司 | A kind of multipoint mode filling pump |
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2017
- 2017-04-11 CN CN201710234611.6A patent/CN107061969B/en active Active
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| CN107061969A (en) | 2017-08-18 |
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