CN115199929A - Double-plunger grease distribution valve - Google Patents
Double-plunger grease distribution valve Download PDFInfo
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- CN115199929A CN115199929A CN202210788930.2A CN202210788930A CN115199929A CN 115199929 A CN115199929 A CN 115199929A CN 202210788930 A CN202210788930 A CN 202210788930A CN 115199929 A CN115199929 A CN 115199929A
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- plunger hole
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- oil outlet
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- 239000004519 grease Substances 0.000 title claims description 33
- 238000009826 distribution Methods 0.000 title abstract description 14
- 238000004891 communication Methods 0.000 claims description 71
- 238000007789 sealing Methods 0.000 claims description 11
- 230000009977 dual effect Effects 0.000 claims description 10
- 238000013459 approach Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 250
- 230000001050 lubricating effect Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000006011 Stroke Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- F16N25/00—Distributing equipment with or without proportioning devices
- F16N25/02—Distributing equipment with or without proportioning devices with reciprocating distributing slide valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a double-plunger oil distribution valve, which adopts a structure that two plungers are combined with a valve core and a reversing core on the plungers, reasonably designs an oil flow passage, can realize oil supply of two and four oil outlets, realizes oil supply of the oil outlets in the same proportion on the premise that the number of the plungers is matched with the movement of the oil passage and the plungers, reduces the number of the oil outlets and the plungers, reduces the volume, reduces the processing cost and the processing difficulty, reduces the failure rate and the damage risk, and reduces the later operation and maintenance cost.
Description
Technical Field
The invention relates to a device for distributing grease during equipment lubrication, in particular to a double-plunger grease distributing valve.
Background
The distribution valve is an indispensable device for a device that intensively supplies lubricating oil to scattered friction points. Typically, the lubrication system provides pressurized oil to a distribution valve, which distributes the oil according to friction points. In the prior art, a common distribution valve uses pressure to provide pressure to drive a plunger to change positions so as to connect or close a set passage in a valve body, thereby realizing distribution of lubricating oil. In the prior art, the limited design ensures that the grease distribution valve needs at least 3 plungers (3 plungers can operate), and the number of oil outlets of the 3 plungers is 6 (one oil outlet is arranged at each of the left end and the right end of each plunger, and the lower part is the same); when 2 oil outlets are needed in more times during actual use, according to the structure of the existing distribution valve, 3 plunger distribution valves (4 oil outlets are blocked) must be used, so that great waste is caused, and meanwhile, lubricating oil of the two oil outlets is distributed unevenly. Meanwhile, when 4 oil outlets are needed and the proportion requirement is 1; therefore, the distributing valve in the prior art causes waste of the oil outlet, and meanwhile, due to the fact that the number of the plungers is increased, the size is large, the processing cost and the difficulty are increased along with exponential level, process holes and the oil outlet or a blocking opening are increased along with the increase, the leakage risk is also increased rapidly, and the later operation and maintenance cost is increased (the more the plungers are, the more the blocking fault is easy to occur).
Therefore, need improve current distribution valve, flow path and the plunger quantity that can rational design grease, under the prerequisite of mutually supporting, reduce the quantity of oil-out and plunger, reduce the volume and reduce the processing cost and the processing degree of difficulty, reduce the fortune dimension cost in later stage.
Disclosure of Invention
In view of this, the present invention provides a dual-plunger grease distribution valve, which can reasonably design the flow path of grease and the number of plungers, reduce the number of oil outlets and plungers on the premise of mutual matching, reduce the volume, reduce the processing cost and the processing difficulty, and reduce the later operation and maintenance cost.
The double plunger grease dispensing valve of the present invention comprises:
the valve body is provided with two plunger holes for accommodating the plungers, and is provided with a valve body oil inlet and four valve body oil outlets;
the two plungers are respectively arranged in the corresponding plunger holes, allowance is reserved between the two ends of each plunger hole and the two ends of each plunger hole, valve cores in sliding sealing fit with the plunger holes are respectively formed at the two ends of each plunger, reversing cores in sliding sealing fit with the plunger holes are formed in the middle of each plunger, and communicated oil ducts are formed between the valve cores and the reversing cores on the plungers;
each plunger hole is provided with:
two plunger hole oil outlets correspondingly communicated with the valve body oil outlet;
the plunger hole oil inlet is communicated with the valve body oil inlet;
when the plunger is at any position, the oil outlet of the plunger hole is sealed and isolated from the oil inlet of the plunger hole;
two plunger holes are respectively located near the middle part and are provided with two plunger hole communicating ports, the two plunger hole communicating ports are correspondingly communicated with chambers at two ends of another plunger hole through the two plunger hole communicating ports, the plunger is in the axial moving process, and the plunger hole communicating ports are selectively communicated with a plunger hole oil inlet and an adjacent plunger hole oil outlet through the communicating oil duct.
Furthermore, the plunger hole oil inlet is located near the axial middle part of the plunger hole, two plunger hole oil outlets on each plunger hole are respectively arranged on two axial sides of the plunger hole oil inlet, and two plunger hole communication ports are respectively arranged on two axial sides of the plunger hole oil inlet and are closer to the plunger hole oil inlet relative to the two plunger hole oil outlets.
Furthermore, the two plunger holes are respectively a first plunger hole and a second plunger hole, and the corresponding plungers are respectively a first plunger and a second plunger;
the plunger hole oil inlet of the first plunger hole is a first plunger hole oil inlet, the plunger hole oil outlet is a first plunger hole left oil outlet and a first plunger hole right oil outlet, and the plunger hole communication port is a first plunger hole left communication port and a first plunger hole right communication port; the two end cavities of the first plunger hole are respectively a left end cavity of the first plunger hole and a right end cavity of the first plunger hole;
the plunger hole oil inlet of the second plunger hole is a second plunger hole oil inlet, the plunger hole oil outlet is a second plunger hole left oil outlet and a second plunger hole right oil outlet, and the plunger hole communication port is a second plunger hole left communication port and a second plunger hole right communication port; the two end chambers of the second plunger hole are respectively a left end chamber of the second plunger hole and a right end chamber of the second plunger hole;
the valve cores at two ends of the first plunger are respectively a first plunger valve core I and a first plunger valve core II, the reversing core is a first plunger reversing core, and the communicating oil ducts are a first plunger annular oil duct I positioned between the first plunger valve core I and the reversing core and a first plunger annular oil duct II positioned between the first plunger valve core II and the reversing core; the valve cores at two ends of the second plunger are a second plunger valve core I and a second plunger valve core II respectively, the reversing core is a second plunger reversing core, and the communicating oil duct is a second plunger annular oil duct I located between the second plunger valve core I and the reversing core and a second plunger annular oil duct II located between the first plunger valve core II and the reversing core.
Further, the first plunger hole left communication port is communicated with the second plunger hole left end chamber, and the first plunger hole right communication port is communicated with the second plunger hole right end chamber; and the second plunger hole left communicating port is communicated with the first plunger hole right end cavity, and the second plunger hole right communicating port is communicated with the first plunger hole left end cavity.
The four valve body oil outlets are respectively a first valve body oil outlet, a second valve body oil outlet, a third valve body oil outlet and a fourth valve body oil outlet, the first valve body oil outlet is communicated with the first plunger hole left oil outlet, the second valve body oil outlet is communicated with the second plunger hole left oil outlet, the third valve body oil outlet is communicated with the first plunger hole right oil outlet, and the fourth valve body oil outlet is communicated with the second plunger hole right oil outlet.
Further, when the first plunger and the second plunger are close to the left, the oil inlet of the first plunger hole is communicated with the right communication port of the first plunger hole through the first plunger annular oil passage II, and the oil inlet of the second plunger hole is communicated with the right communication port of the second plunger hole through the second plunger annular oil passage II; the second plunger hole left communication port is communicated with the second plunger hole left oil outlet through a second plunger annular oil passage I;
when the first plunger approaches the right and the second plunger approaches the left, the oil inlet of the first plunger hole is communicated with the left communication port of the first plunger hole through a first plunger annular oil passage I, and the oil inlet of the second plunger hole is communicated with the right communication port of the second plunger hole through a second plunger annular oil passage II; the first plunger hole right communication port is communicated with the first plunger hole right oil outlet through a first plunger annular oil duct II;
when the first plunger and the second plunger are close to the right, the oil inlet of the first plunger hole is communicated with the left communication port of the first plunger hole through the first plunger annular oil passage I, and the oil inlet of the second plunger hole is communicated with the left communication port of the second plunger hole through the second plunger annular oil passage I; the second plunger hole right communication port is communicated with the second plunger hole right oil outlet through a second plunger annular oil passage II;
when the first plunger approaches the left and the second plunger approaches the right, the oil inlet of the first plunger hole is communicated with the right communication port of the first plunger hole through a first plunger annular oil passage II, and the oil inlet of the second plunger hole is communicated with the left communication port of the second plunger hole through a second plunger annular oil passage I; the first plunger hole right communicating opening is communicated with the first plunger hole left oil outlet through a first plunger annular oil duct I.
Further, the first plunger valve core I, the first plunger valve core II and the first plunger reversing core are integrally formed on the first plunger;
the second plunger valve core I, the second plunger valve core II and the second plunger reversing core are integrally formed on the second plunger.
Furthermore, an oil outlet channel is formed in the valve body and comprises a first oil outlet channel, a second oil outlet channel, a third oil outlet channel and a fourth oil outlet channel which are arranged corresponding to the first oil outlet of the valve body, the second oil outlet of the valve body, the third oil outlet of the valve body and the fourth oil outlet of the valve body, the first oil outlet channel and the third oil outlet channel are coaxial and parallel to the first plunger hole, and the second oil outlet channel and the fourth oil outlet channel are coaxial and parallel to the second plunger hole.
Furthermore, the first oil outlet channel and the second oil outlet channel are communicated in a closable manner through the first oil outlet communication channel, and the third oil outlet channel and the fourth oil outlet channel are communicated in a closable manner through the second oil outlet communication channel.
The invention has the beneficial effects that: the double-plunger oil distribution valve disclosed by the invention adopts the structure of two plungers and the combination of the valve core and the reversing core on the plungers, the oil flow channel is reasonably designed, the oil supply of two and four oil outlets can be realized, the oil supply of the oil outlets in the same proportion is realized on the premise that the number of the plungers is matched with the movement of the oil channel and the plungers, the number of the oil outlets and the number of the plungers are reduced, the size is reduced, the processing cost and the processing difficulty are reduced, the fault rate and the damage risk are reduced, and the later operation and maintenance cost is reduced.
Drawings
The invention is further described below with reference to the figures and examples.
FIG. 1 is a schematic diagram of the present invention (first flow stage);
FIG. 2 is a schematic diagram of the structural principle of the present invention (second flow stage);
FIG. 3 is a schematic diagram of the structural principles of the present invention (third flow stage);
FIG. 4 is a schematic diagram of the structural principle of the present invention (fourth stage of the process);
FIG. 5 is a side view of the present invention;
FIG. 6 is a front view of the present invention;
FIG. 7 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 5;
FIG. 8 is a cross-sectional view taken along line B-B of FIG. 5;
FIG. 9 is a cross-sectional view taken along line C-C of FIG. 6;
FIG. 10 is a cross-sectional view taken along line D-D of FIG. 6;
fig. 11 is a sectional view taken along line E-E of fig. 6.
Detailed Description
As shown in fig. 1 to 4 in combination with fig. 5 to 11: the dual plunger grease dispensing valve of this embodiment includes:
the valve body 1 is provided with two plunger holes 101 and 102 for accommodating plungers, and is provided with a valve body oil inlet 107 and four valve body oil outlets 4, 5, 6 and 7;
the two plungers 2 and 3 are respectively arranged in the corresponding plunger holes 101 and 102, allowance is reserved between the two ends of the plungers 101 and 102, valve cores in sliding sealing fit with the plunger holes 101 and 102 are respectively formed at the two ends of the plungers 2 and 3, reversing cores in sliding sealing fit with the plunger holes are formed in the middle of the plungers 2 and 3, and communicating oil channels are formed between the valve cores and the reversing cores on the plungers;
each plunger hole is provided with:
two plunger hole oil outlets correspondingly communicated with the valve body oil outlet;
the plunger hole oil inlet is communicated with the valve body oil inlet;
when the plunger is at any position, the oil outlet of the plunger hole is sealed and isolated from the oil inlet of the plunger hole;
two plunger hole communicating ports are formed in the positions, close to the middle, of the two plunger holes 101 and 102 respectively, and are correspondingly communicated with cavities at two ends of the other plunger hole through the two plunger hole communicating ports, and in the axial moving process of the plunger, the plunger hole communicating ports are selectively communicated with a plunger hole oil inlet and an adjacent plunger hole oil outlet through the communicating oil duct.
In this embodiment, the plunger hole oil inlet is located near the axial middle part of the plunger hole, two plunger hole oil outlets on each plunger hole are respectively arranged on two axial sides of the plunger hole oil inlet, and two plunger hole communication ports are respectively arranged on two axial sides of the plunger hole oil inlet and are closer to the plunger hole oil inlet relative to the two plunger hole oil outlets.
In this embodiment, the two plunger holes are a first plunger hole 101 and a second plunger hole 102, respectively, and the corresponding plungers are a first plunger 2 and a second plunger 3, respectively;
a plunger hole oil inlet of the first plunger hole 101 is a first plunger hole oil inlet 10103, a plunger hole oil outlet is a first plunger hole left oil outlet 10101 and a first plunger hole right oil outlet 10102, and plunger hole communication ports are a first plunger hole left communication port 10106 and a first plunger hole right communication port 10107; the two end chambers of the first plunger hole 101 are a first plunger hole left end chamber 10104 and a first plunger hole right end chamber 10105 respectively;
the plunger hole oil inlet of the second plunger hole is a second plunger hole oil inlet 10203, the plunger hole oil outlet is a second plunger hole left oil outlet 10201 and a second plunger hole right oil outlet 10202, and the plunger hole communication port is a second plunger hole left communication port 10206 and a second plunger hole right communication port 10207; the two end chambers of the second plug hole are respectively a second plug hole left end chamber 10204 and a second plug hole right end chamber 10205;
the valve cores at two ends of the first plunger 2 are a first plunger valve core I201 and a first plunger valve core II 202 respectively, the reversing core is a first plunger reversing core 203, and the communicating oil ducts are a first plunger annular oil duct I204 positioned between the first plunger valve core I201 and the reversing core 203 and a first plunger annular oil duct II 205 positioned between the first plunger valve core II 202 and the reversing core 203; the valve cores at two ends of the second plunger 3 are a second plunger valve core I301 and a second plunger valve core II 302 respectively, the reversing core is a second plunger reversing core 303, and the communicating oil ducts are a second plunger annular oil duct I304 positioned between the second plunger valve core I301 and the reversing core 303 and a second plunger annular oil duct II 305 positioned between the first plunger valve core II 302 and the reversing core 303;
the left and right in the above description are based on the left and right in fig. 1 to 4 and 6 to 11, and the description thereof is omitted herein for brevity.
In this embodiment, the first plunger hole left communicating port 10106 communicates with the second plunger hole left end chamber 10204, and as shown in fig. 1, the first plunger hole right communicating port 10107 communicates with the second plunger hole right end chamber 10205; the second plunger hole left communicating port 10206 is communicated with the first plunger hole right end chamber 10105, and the second plunger hole right communicating port 10207 is communicated with the first plunger hole left end chamber 10104.
In this embodiment, the four valve body oil outlets are a first valve body oil outlet 4 (corresponding to (1) in actual use), a second valve body oil outlet 5 (corresponding to (2) in actual use), a third valve body oil outlet 6 (corresponding to (3) in actual use), and a fourth valve body oil outlet 7 (corresponding to (4) in actual use), where the first valve body oil outlet 4 is communicated with the first plunger hole left oil outlet 10101, the second valve body oil outlet 5 is communicated with the second plunger hole left oil outlet 10201, the third valve body oil outlet 6 is communicated with the first plunger hole right oil outlet 10102, and the fourth valve body oil outlet 7 is communicated with the second plunger hole right oil outlet 10202.
In this embodiment, when the first plunger 2 and the second plunger 3 are both close to the left, as shown in the figure, the distribution valve is set as an initial stage (a first flow stage), the oil inlet 10103 of the first plunger hole is communicated with the first plunger hole right communicating port 10107 through the first plunger annular oil passage ii 205, and as shown by a single arrow in fig. 1, since the first plunger hole right communicating port 10107 is communicated with the second plunger hole right end chamber 10205, the pressure oil enters the second plunger hole right end chamber 10205 and is stored;
the second plunger hole oil inlet 10203 is communicated with the second plunger hole right communication port 10207 through the second plunger annular oil passage ii 305, as shown by a single arrow in fig. 1, since the second plunger hole right communication port 10207 is communicated with the first plunger hole left end chamber 10204, the pressure oil enters the first plunger hole left end chamber 10204 (shown by the single arrow in the figure) and pushes the first plunger 2 rightward and pushes out the lubricating grease (generally stored) in the first plunger hole right end chamber 10105 to enter the second plunger hole left communication port 10206, and since the second plunger hole left communication port 10206 is communicated with the second plunger hole left oil outlet 10201 through the second plunger annular oil passage i 304, the lubricating grease is output to a designated lubricating point by the valve body second oil outlet 5 due to the valve body second oil outlet 5 (oil outlet No. (2) communicated with the second plunger hole left oil outlet 10201 at this time, as shown by a double arrow in fig. 1; in fig. 1, a single arrow represents an oil inlet flow path, a double arrow represents an oil outlet flow path, and fig. 2 to 4 are based on the above description;
through the flow of the first flow stage, the second flow stage shown in fig. 2 is entered, that is, after the grease is output from the second oil outlet 5 of the valve body, the first plunger is close to the right and the second plunger is close to the left, as shown in fig. 2 (since the features of the components are the same as those of fig. 1, fig. 2 is not marked with reference numerals); at this time, the oil inlet 10103 of the first plunger hole is communicated with the first plunger hole left communication port 10106 through the first plunger annular oil passage i 204, as shown by a single arrow in fig. 2, since the first plunger hole left communication port 10106 is communicated with the second plunger hole left end chamber 10204, the pressure oil enters the second plunger hole left end chamber 10204 and pushes the second plunger 3 rightward and pushes out the lubricating grease (stored in the foregoing flow) in the second plunger hole right end chamber 10205 to enter the first plunger hole right communication port 10107, as shown by a double arrow in fig. 2, and since the first plunger hole right communication port 10107 is communicated with the first plunger hole right oil outlet 10102 through the first plunger annular oil passage ii 205 at this time, the lubricating grease is output to a specified lubricating point through the valve body third oil outlet 6 (oil outlet (3) when in use) communicated with the first plunger hole left oil outlet 10102;
meanwhile, as shown by a single arrow in fig. 2, the second plunger hole oil inlet 10203 is communicated with the second plunger hole right communication port 10207 through the second plunger annular oil passage ii 305, and since the second plunger hole right communication port 10207 is communicated with the first plunger hole left end chamber 10104, the pressure oil enters the first plunger hole left end chamber 10104 to be stored; the pressure oil enters the first plunger hole left end chamber 10104 and is stored in the first plunger hole left end chamber 10104 while pushing the first plunger 2 to the right in the first stroke stage;
through the flow of the second flow stage, the third flow stage shown in fig. 3 is started, that is, after grease is output from the third oil outlet 6 of the valve body, the first plunger and the second plunger both approach the right, at this time, the oil inlet 10103 of the first plunger hole is communicated with the left communicating port 10106 of the first plunger hole through the first plunger annular oil passage i 204, and as the left communicating port 10106 of the first plunger hole is communicated with the left end chamber 10204 of the second plunger hole, the pressure oil enters the left end chamber 10204 of the second plunger hole and is stored in the left end chamber 10204 of the second plunger hole while pushing the second plunger 3 to the right in the second flow stage;
at this time, the second plunger hole oil inlet 10203 is communicated with the second plunger hole left communicating port 10206 through the second plunger annular oil passage i 304, as shown by a single arrow in fig. 3, since the second plunger hole left communicating port 10206 is communicated with the first plunger hole right end chamber 10105, the pressure oil enters the first plunger hole right end chamber 10105 and pushes the first plunger 2 leftward and pushes out the lubricating grease (stored in the foregoing flow) in the first plunger hole left end chamber 10104 into the second plunger hole right communicating port 10207, as shown by a double arrow in fig. 3, and since the second plunger hole right communicating port 10207 is communicated with the second plunger hole right oil outlet 10202 through the second plunger annular oil passage ii 305 at this time, the lubricating grease is output to a specified lubricating point through the valve body fourth oil outlet 7 (oil outlet No. (4) communicated with the second plunger hole left oil outlet 10202;
through the flow of the third flow stage, the flow enters a fourth flow stage shown in fig. 4, that is, after grease is output from the fourth oil outlet 7 of the valve body, the first plunger is closer to the left and the second plunger is closer to the right, at this time, the oil inlet 10103 of the first plunger hole is communicated with the first plunger hole right communication port 10107 through the first plunger annular oil passage ii 205, because the first plunger hole right communication port 10107 is communicated with the second plunger hole right end chamber 10205, the pressure oil enters the second plunger hole right end chamber 10205 and pushes the second plunger 3 leftwards and pushes out the lubricating grease (stored in the foregoing flow) in the second plunger hole left end chamber 10204 to enter the first plunger hole left communication port 10106, as shown by double arrows in fig. 4, and because the first plunger hole left communication port 10106 is communicated with the first plunger hole left oil outlet 10101 through the first plunger annular oil passage i 204 at this time, the lubricating grease is output from the first oil outlet 1014 (number (1) of the valve body, which is communicated with the first plunger hole left oil outlet 10101, and the lubricating grease is output to a designated point;
at this time, the second plunger hole oil inlet 10203 is communicated with the second plunger hole left communication port 10204 through the second plunger annular oil passage i 304, and since the second plunger hole left communication port 10204 is communicated with the first plunger hole right end chamber 10105, the pressure oil enters the first plunger hole right end chamber 10105 and is stored in the first plunger hole right end chamber 10105 while pushing the first plunger 2 leftward in the third flow stage;
thereby, returning to the first flow stage and circulating from the first flow stage to the fourth flow stage;
the specified flow of the grease is completed by switching and communicating and sealing the ports, and the axial movement of the first plunger and the second plunger is realized by the sealing action of the valve core and the reversing core and the connecting action of the annular oil duct, so that the details are not repeated.
In this embodiment, the first plunger valve core i 201, the first plunger valve core ii 202, and the first plunger direction changing core 203 are integrally formed with the first plunger 2;
the second plunger valve core I301, the second plunger valve core II 302 and the second plunger reversing core 303 are integrally formed on the second plunger 3;
the whole structure is simple and compact, and the manufacturing cost is low.
In this embodiment, the valve body 1 is provided with an oil outlet channel, which includes a first oil outlet channel 103, a second oil outlet channel 104, a third oil outlet channel 105 and a fourth oil outlet channel 106, which are arranged corresponding to the first oil outlet 4, the second oil outlet 5, the third oil outlet 6 and the fourth oil outlet 7 of the valve body, the first oil outlet channel 103 and the third oil outlet channel 105 are coaxial and parallel to the first plunger hole 2, and the second oil outlet channel 104 and the fourth oil outlet channel 106 are coaxial and parallel to the second plunger hole; certainly, when in use, a seal should be formed between the first oil outlet channel 103 and the third oil outlet channel 105 and between the third oil outlet channel 105 and the fourth oil outlet channel 106, and details are not described herein again; as shown in the figure, the two plunger holes and the oil outlet channel are arranged in a square mode, and the size is regular and reduced on the whole.
In this embodiment, as shown in fig. 8, the first oil outlet passage 103 and the second oil outlet passage 104 are in closable communication via a first oil outlet communication passage 108, and the third oil outlet passage 105 and the fourth oil outlet passage 106 are in closable communication via a second oil outlet communication passage 109; the first oil outlet communicating channel 108 and the second oil outlet communicating channel 109 are inclined channels, the first oil outlet channel 103, the second oil outlet channel 104, the third oil outlet channel 105 and the fourth oil outlet channel 106 are provided with a conical table top with a large outer part and a small inner part, the outer openings of the first oil outlet communicating channel 108 and the second oil outlet communicating channel 109 are arranged on the conical table top, when the four outlets need to be output in the same proportion, a conical sealing block is arranged on the conical table top from the outside (as shown in a position a in fig. 8, the communication between the first oil outlet channel 103 and the second oil outlet channel 104 can be sealed, and similarly, the third oil outlet channel 105 and the fourth oil outlet channel 106 are also sealed in the mode), so that the four outlets output grease independently; when the use state of only adopting two oil outlets, seal one of first oil outlet passageway 103 and second oil outlet passageway 104 and one of third oil outlet passageway 105 and fourth oil outlet passageway 106, the toper seal block need take out this moment for first oil outlet intercommunication passageway and second oil outlet intercommunication passageway are open, the export of releasing is flowed to the accessible intercommunication department when the plunger operation, realize two exports and export lubricating oil with proportion, avoid having the dead mouth and influence the plunger operation, therefore can not influence the operation of whole distributing valve, no longer describe herein.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (9)
1. A dual plunger grease dispensing valve characterized by: the method comprises the following steps:
the valve body is provided with two plunger holes for accommodating the plungers, and is provided with a valve body oil inlet and four valve body oil outlets;
the two plungers are respectively arranged in the corresponding plunger holes, allowance is reserved between the two ends of each plunger hole and the two ends of each plunger hole, valve cores which are in sliding sealing fit with the plunger holes are respectively formed at the two ends of each plunger, reversing cores which are in sliding sealing fit with the plunger holes are formed in the middle of each plunger, and communicated oil ducts are formed between the valve cores and the reversing cores on the plungers;
each plunger hole is provided with:
two plunger hole oil outlets correspondingly communicated with the valve body oil outlet;
the plunger hole oil inlet is communicated with the valve body oil inlet;
when the plunger is at any position, the oil outlet of the plunger hole and the oil inlet of the plunger hole are sealed and isolated;
two plunger hole intercommunication mouths are arranged near the middle part of each of the two plunger holes and are correspondingly communicated with the cavities at two ends of the other plunger hole through the two plunger hole intercommunication mouths, and the plunger is in the axial movement process, and the plunger hole intercommunication mouths are selectively communicated with the plunger hole oil inlet and the adjacent plunger hole oil outlet through the communication oil duct.
2. The dual plunger grease dispensing valve according to claim 1 wherein: the plunger hole oil inlet is located near the axial middle part of the plunger hole, two plunger hole oil outlets on each plunger hole are respectively arranged on two axial sides of the plunger hole oil inlet, and two plunger hole communication ports are respectively arranged on two axial sides of the plunger hole oil inlet and are closer to the plunger hole oil inlet relative to the two plunger hole oil outlets.
3. The dual plunger grease dispensing valve according to claim 2 wherein: the two plunger holes are respectively a first plunger hole and a second plunger hole, and the corresponding plungers are respectively a first plunger and a second plunger;
the plunger hole oil inlet of the first plunger hole is a first plunger hole oil inlet, the plunger hole oil outlet is a first plunger hole left oil outlet and a first plunger hole right oil outlet, and the plunger hole communication port is a first plunger hole left communication port and a first plunger hole right communication port; the two end cavities of the first plunger hole are respectively a left end cavity of the first plunger hole and a right end cavity of the first plunger hole;
the plunger hole oil inlet of the second plunger hole is a second plunger hole oil inlet, the plunger hole oil outlet is a second plunger hole left oil outlet and a second plunger hole right oil outlet, and the plunger hole communication port is a second plunger hole left communication port and a second plunger hole right communication port; the two end chambers of the second plunger hole are respectively a left end chamber of the second plunger hole and a right end chamber of the second plunger hole;
the valve cores at two ends of the first plunger are respectively a first plunger valve core I and a first plunger valve core II, the reversing core is a first plunger reversing core, and the communicating oil ducts are a first plunger annular oil duct I positioned between the first plunger valve core I and the reversing core and a first plunger annular oil duct II positioned between the first plunger valve core II and the reversing core; the valve cores at two ends of the second plunger are a second plunger valve core I and a second plunger valve core II respectively, the reversing core is a second plunger reversing core, and the communicating oil ducts are a second plunger annular oil duct I located between the second plunger valve core I and the reversing core and a second plunger annular oil duct II located between the first plunger valve core II and the reversing core.
4. The dual plunger grease dispensing valve according to claim 1 wherein: the left communication port of the first plunger hole is communicated with the left end cavity of the second plunger hole, and the right communication port of the first plunger hole is communicated with the right end cavity of the second plunger hole; and the second plunger hole left communicating port is communicated with the first plunger hole right end cavity, and the second plunger hole right communicating port is communicated with the first plunger hole left end cavity.
5. The dual plunger grease dispensing valve according to claim 3 wherein: the four valve body oil outlets are respectively a first valve body oil outlet, a second valve body oil outlet, a third valve body oil outlet and a fourth valve body oil outlet, the first valve body oil outlet is communicated with the first plunger hole left oil outlet, the second valve body oil outlet is communicated with the second plunger hole left oil outlet, the third valve body oil outlet is communicated with the first plunger hole right oil outlet, and the fourth valve body oil outlet is communicated with the second plunger hole right oil outlet.
6. The dual plunger grease dispensing valve according to claim 5 wherein: when the first plunger and the second plunger are close to the left, the oil inlet of the first plunger hole is communicated with the right communicating port of the first plunger hole through the first plunger annular oil passage II, and the oil inlet of the second plunger hole is communicated with the right communicating port of the second plunger hole through the second plunger annular oil passage II; the second plunger hole left communication port is communicated with the second plunger hole left oil outlet through a second plunger annular oil passage I;
when the first plunger approaches the right and the second plunger approaches the left, the oil inlet of the first plunger hole is communicated with the left communication port of the first plunger hole through a first plunger annular oil passage I, and the oil inlet of the second plunger hole is communicated with the right communication port of the second plunger hole through a second plunger annular oil passage II; the first plunger hole right communication port is communicated with the first plunger hole right oil outlet through a first plunger annular oil duct II;
when the first plunger and the second plunger are close to the right, the oil inlet of the first plunger hole is communicated with the left communication port of the first plunger hole through the first plunger annular oil passage I, and the oil inlet of the second plunger hole is communicated with the left communication port of the second plunger hole through the second plunger annular oil passage I; the second plunger hole right communication port is communicated with the second plunger hole right oil outlet through a second plunger annular oil passage II;
when the first plunger approaches the left and the second plunger approaches the right, the oil inlet of the first plunger hole is communicated with the right communication port of the first plunger hole through a first plunger annular oil passage II, and the oil inlet of the second plunger hole is communicated with the left communication port of the second plunger hole through a second plunger annular oil passage I; first plunger hole right side intercommunication mouth communicates in first plunger hole left oil-out through first plunger annular oil duct I.
7. The dual plunger grease dispensing valve according to claim 6 wherein: the first plunger valve core I, the first plunger valve core II and the first plunger reversing core are integrally formed on the first plunger;
the second plunger valve core I, the second plunger valve core II and the second plunger reversing core are integrally formed on the second plunger.
8. The dual plunger grease dispensing valve according to claim 2 wherein: the oil outlet valve is characterized in that an oil outlet channel is formed in the valve body and comprises a first oil outlet channel, a second oil outlet channel, a third oil outlet channel and a fourth oil outlet channel which are arranged corresponding to a first oil outlet of the valve body, a second oil outlet of the valve body, a third oil outlet of the valve body and a fourth oil outlet of the valve body, the first oil outlet channel and the third oil outlet channel are coaxial and parallel to the first plunger hole, and the second oil outlet channel and the fourth oil outlet channel are coaxial and parallel to the second plunger hole.
9. The dual plunger grease dispensing valve according to claim 4 wherein: the first oil outlet channel and the second oil outlet channel are communicated in a sealing mode through the first oil outlet communication channel, and the third oil outlet channel and the fourth oil outlet channel are communicated in a sealing mode through the second oil outlet communication channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210788930.2A CN115199929A (en) | 2022-07-06 | 2022-07-06 | Double-plunger grease distribution valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210788930.2A CN115199929A (en) | 2022-07-06 | 2022-07-06 | Double-plunger grease distribution valve |
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| Publication Number | Publication Date |
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| CN115199929A true CN115199929A (en) | 2022-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210788930.2A Pending CN115199929A (en) | 2022-07-06 | 2022-07-06 | Double-plunger grease distribution valve |
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| CN (1) | CN115199929A (en) |
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| US3219146A (en) * | 1963-05-16 | 1965-11-23 | Houdaille Industries Inc | Lubricant distributor |
| CN2322024Y (en) * | 1998-03-23 | 1999-06-02 | 温州市龙湾润滑液压设备厂 | Lubricating oil feeding progressively distributor |
| KR20110029854A (en) * | 2009-09-16 | 2011-03-23 | (주)현보 | Lubricant mixing distributor |
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