CN102269276B - Proportional valve - Google Patents
Proportional valve Download PDFInfo
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- CN102269276B CN102269276B CN 201010618305 CN201010618305A CN102269276B CN 102269276 B CN102269276 B CN 102269276B CN 201010618305 CN201010618305 CN 201010618305 CN 201010618305 A CN201010618305 A CN 201010618305A CN 102269276 B CN102269276 B CN 102269276B
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- pivot angle
- proportional valve
- control unit
- suction port
- fork
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Abstract
The invention provides a proportional valve. The proportional valve comprises a first half valve body (1) and a second valve body (2) fixedly connected with the first half valve body (1), wherein a cavity is formed between the first half valve body (1) and the second half valve body (2), and the cavity is communicated with an air inlet (11) and an air outlet (4) of the proportional valve, the proportional valve also comprises: a pivot angle control assembly (3) arranged in the cavity, and the openness of the air inlet (11) is controlled by rotating the pivot angle control assembly (3). The proportional valve provided by the invention has the properties of flexible mechanism, stable precision, high controllability and the like.
Description
Technical field
The present invention relates to the flow control field, in particular to a kind of Proportional valve.
Background technique
In current engineering practical application, the flow proportional control valve of main flow is the displacement type proportional control valve.How many most core parts that adopt come the size of control flow rate through the linear displacement of part under the effect of electromagnetic field and mechanical force in these Proportional valves.Linear displacement by part is carried out flow control, not only brings the tightness problem of structure, and can cause parts depreciation, reduces the working life of proportional control valve.
Summary of the invention
The object of the invention is to solve the above-mentioned defective that existing Proportional valve exists, and a kind of Proportional valve is provided, and has performances such as mechanism is flexible, stable accuracy, controllability height.
To achieve these goals, according to an aspect of the present invention, a kind of Proportional valve is provided; Comprise the first half valve bodies and the second half valve bodies that are fixedly connected with the first half valve bodies; Form cavity in the middle of the first half valve bodies and the second half valve bodies, cavity is communicated with the suction port and the air outlet of Proportional valve, and Proportional valve also comprises the pivot angle control unit; Be arranged in the cavity, through rotating the opening degree of pivot angle control unit control suction port.
Further, the pivot angle control unit comprises: the pivot angle head, comprise the inlet adjusting portion that the cavity inner wall with the suction port place fits, and have vent passage in the inlet adjusting portion, the opening degree of control suction port, the vent passage lower end has the gas channel that is communicated with the air outlet.
Further, inlet adjusting portion is a sector structure, and vent passage is positioned at the intermediate portion of sector structure, is provided with two supporting posts at the rear side of inlet adjusting portion, and two said supporting posts are identical with the angle that vent passage forms.
Further, the surface that fits of supporting post and half valve body is provided with the thin slice that soft material is processed.
Further, the pivot angle control unit also comprises fork, is arranged in the cavity, and an end is fixedly connected with the pivot angle head, and the other end stretches out the upper end portion of the first half valve bodies and the second half valve bodies.
Further, have the blocked part on the fork, make that the pivot angle head is unsettled to be arranged in the cavity.
Further, be provided with packing ring in the lower end, blocked part.
Further, fork comprises pivot angle head upper end carrying out spacing multidiameter shaft and spacing locking nut is carried out in pivot angle head lower end.
Further, the pivot angle control unit also is included in the seal ring that is provided with at interval on the fork.
Further, suction port and vent passage are square opening.
According to technological scheme of the present invention, Proportional valve for rotating control, has reduced fretting wear with the linear displacement control transformation through rotating the opening degree of the pivot angle head control suction port in the pivot angle control unit, has improved controllability, has also improved degree of regulation.Rear side in the inlet adjusting portion of pivot angle head is provided with equally distributed supporting post, and it is tightr that its resultant direction and vent passage in the opposite direction fitted pivot angle head and valve interior wall, effectively guaranteed the tightness of Proportional valve, thereby guaranteed its precision.Have the blocked part on the fork, make the unsettled setting of pivot angle head, further reduced the suffered frictional force of pivot angle control unit, improve its control accuracy.On the fork of pivot angle control unit, also be arranged at intervals with seal ring; Make Proportional valve have better tightness on the one hand; The suffered frictional force of whole pivot angle control unit is further reduced, can play the positioning supports effect to the pivot angle control unit simultaneously.
Description of drawings
The accompanying drawing that constitutes a part of the present invention is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the perspective view according to the embodiment of Proportional valve of the present invention;
Fig. 2 shows the structural representation according to the embodiment of Proportional valve of the present invention;
Fig. 3 shows A-A among Fig. 2 to the sectional structure schematic representation;
Fig. 4 shows B-B among Fig. 3 to the sectional structure schematic representation;
Fig. 5 shows the decomposition texture schematic representation according to the fork control unit of Proportional valve of the present invention; And
Fig. 6 shows the structural representation according to the pivot angle head of Proportional valve of the present invention.
Embodiment
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
As depicted in figs. 1 and 2; According to one embodiment of present invention, Proportional valve forms cavitys in the middle of comprising the first half valve bodies 1 and the second half valve body 2, the first half valve bodies 1 that are fixedly connected with the first half valve bodies 1 and the second half valve bodies 2; Cavity is communicated with air outlet 4 with the suction port 11 of Proportional valve; Proportional valve also comprises pivot angle control unit 3, is arranged in the cavity, controls the opening degree of suction port 11 through rotating this pivot angle control unit 3.Link together through bolt between two and half valve bodies; Can find out that from Fig. 1 and Fig. 2 connecting bolt is provided with four, each two up and down; Medial axis with Proportional valve is that the center is symmetrical set respectively, can guarantee the structure stability of Proportional valve and the tightness of connection.In order to increase the tightness of Proportional valve, also be provided with the thin silicon glue film in the outer of the first half valve bodies 1 and the second half valve bodies 2, reduce the influence of the machining accuracy that two and half valve bodies receive with this.
As shown in Figure 3, pivot angle control unit 3 comprises fork 32, pivot angle head 31 and locking nut 33.Be provided with blocked part 321 at fork 32 with the position that the upper end portion of two and half valve bodies combines; Whole fork control unit 3 is formed supporting effect; Be located at the pivot angle head 31 unsettled settings of suction port 11 controls place; Reduce the rubbing action between pivot angle head 31 and the valve body, not only can guarantee that Proportional valve has higher control accuracy, and make Proportional valve have better controllability.
Have the seal ring of arranging vertically 5 that is provided with at interval on the fork 32 of pivot angle control unit 3, seal ring 5 quantity have a plurality of, and in the present embodiment, its quantity is two.Two seal ring 5 roles have two, are to seal on the one hand, are on the other hand pivot angle control unit 3 is formed the positioning supports effect.Seal ring 5 in the present embodiment is an O type circle because whole pivot angle control unit 3 is down unsettled in working order, with the point of contact of valve body be exactly two O type circles; According to the principle of 2 definite straight lines, the running shaft of pivot angle control unit 3 just has been directed basically, simultaneously; Because the elastic reaction of O type circle; Can also when pivot angle control unit 3 receives force unbalance, the moment of reaction be provided, make pivot angle control unit 3 can not produce the rotation of axial direction, other part is caused interference.
As can be seen from Figure 3, pivot angle head 31 has the vent passage 312 that is communicated with suction port 11, is provided with the gas channel 313 that is communicated with air outlet 4 in vent passage 312 lower ends, and gas channel 313 remains connected state with air outlet 4.The opening of the opening of vent passage 312 and suction port 11 is positioned at sustained height, adjusts the contact ratio of the opening of vent passage 312 and suction port 11 then through rotation pivot angle head 31, adjusts the opening degree of suction port 11 with this.In order to make vent passage have smooth gas-entered passageway, make suction port 11 have the air inflow of the maximum that adapts with its maximum opening degree simultaneously, the opening of vent passage 312 should be greater than the opening of suction port 11 when being oppositely arranged fully with suction port 11.When needs were regulated suction port 11 opening degrees, rotation fork 32 made the rotation of its control pivot angle head 31, thereby adjustment vent passage 312 and the air inlet port size that suction port 11 coincides make it satisfy actual intake requirement.Suction port 11 in the present embodiment, vent passage 312, gas channel 313 and air outlet 4 are circular port.In order better to realize proportional control, can the gas port shape of suction port 11 and vent passage 312 be processed into squarely, can control ventilation flow rate easily according to square character and circulate in proportion, method is simply effective.
From Fig. 3, it can also be seen that; In the upper end portion cooperation place of fork 32 with pivot angle head 31; Has multidiameter shaft on the fork 32; Shaft hole diameter in pivot angle head 31 forms the effective backstop to the upper end portion of pivot angle head 31 less than the Outside diameter at the multidiameter shaft of pivot angle head 31 outsides with this, carries out spacing to its upper end portion.The lower end of fork 32 is passed fork head 31 and is stretched out, and the swing link end part that stretches out is provided with outside thread, is provided with locking nut 33 above that, and 33 pairs of pivot angle head 31 underparts of locking nut are carried out spacing.Locking nut 33 is upwards tightened; Cooperate the effective location of pivot angle head 31 formation with the big end of multidiameter shaft; Make it have stable structure, make fork 32 in rotation process, pivot angle head 31 can be synchronized with the movement with its maintenance; Realize high-precision motion control, thus the control accuracy of dependable flow ratio.
As can be seen from Figure 4, pivot angle head 31 has inlet adjusting portion 311, and inlet adjusting portion 311 fits with the cavity inner wall at suction port 11 places, has vent passage 312 in the inlet adjusting portion 311.In the present embodiment, inlet adjusting portion 311 is a sector structure, and vent passage 312 is positioned at the intermediate portion of sector structure, and it is identical with the angle that vent passage 312 forms to be provided with 314, two supporting posts 314 of two supporting posts at the rear side of inlet adjusting portion 311.Preferably; On the surface that two supporting posts 314 and half valve body fit, be pasted with the thin slice that soft material is processed; A small amount of interference is arranged making after the assembling between supporting post 314 and half valve body; Make it have pretightening force, and guarantee can between inlet adjusting portion 311 and valve interior wall, have small amount of wear the time still can fit tightly between inlet adjusting portion 311 and the valve interior wall, thereby guarantee that Proportional valve has good air-tightness and stronger adaptability.As a kind of optimal way of present embodiment, the vent passage 312 of pivot angle head 31 evenly distributes in circumference with two supporting posts 314 of rear side, and each becomes 120 degree.Because such layout symmetry,, will produce active forces to two supporting posts 314 of rear side when gas circuit is in full-gear following time; At this moment supporting post 314 is owing to fit closely with half valve interior wall; Can produce corresponding reaction force, and the resultant direction of reaction force is just along the direction of gas circuit, and opposite sign but equal magnitude; Just cancelled out each other, thereby guaranteed that pivot angle control unit 3 can not receive the moment of torsion of axial direction and circumferential direction.
Can find out by Fig. 5, also comprise packing ring 322 in the pivot angle control unit 3, be arranged on 321 lower ends, blocked part.Because fork 32 will produce rubbing action with the valve body upper end portion in the process of rotation; Can cause the wearing and tearing of blocked part 321, thereby influence control accuracy, wear and tear when too much; Can cause the bottom of pivot angle head 31 to contact with valve body; Increase the friction of valve body and pivot angle head 31, cause the sluggishness of pivot angle head rotation, influence the proportional control validity of gas flow.In order to reduce the wearing and tearing of fork blocked part 321 in pivot angle control unit 3 rotation processes; Packing ring 322 is arranged between blocked part 321 and the valve body; When packing ring 322 excessive wears, only need change packing ring 322, more convenient; Cost is lower, and can effectively guarantee the ventilation flow rate proportional control of Proportional valve.
As can be seen from Figure 6, the gas channel 313 on the pivot angle head 31 is arranged on the intermediate portion of the inlet adjusting portion 311 of sector structure, makes the overall structure of pivot angle head 31 more firm.At the sector structure edge is arc transition, interior wall construction that can the scratch valve body in rotation process.
According to the embodiment of Proportional valve of the present invention, during installation, at first packing ring 322 is packed on the fork 32, then two seal rings 5 are installed on the fork 32, pivot angle head 31 is installed afterwards, at last locking nut 33 is tightened.Then the pivot angle control unit 3 that assembles is placed in the middle of the first half valve bodies; The position of adjustment packing ring 322; And seal ring 5 is installed in the groove of the relevant position on the first half valve bodies; Pendulum rotating angle head 31 is connected the suction port 11 on vent passage 312 and the first half valve bodies 1 then, at last the second half valve bodies 2 and the first half valve bodies 1 is assembled, and forms complete Proportional valve.Just once accomplish owing to be input to flow output from angle through the conversion of fork 32, the coaxial setting of each component part of pivot angle control unit 3, other link in the middle of having reduced is so can realize highi degree of accuracy, synchronous nothing sluggishness.
Under the standard-sized sheet working state, because pivot angle head 31 receives force direction along the center line symmetry, make that two corresponding supporting posts 314 produce equal size, the just in time opposite reaction of making a concerted effort with it, last population equilibrium is offset.
Under other working state, pivot angle head 31 receives makes a concerted effort still through the revolution axle center, but the direction of making a concerted effort is without gyration center; But the part that can make pivot angle head 31 block suction port 11 receives gas pressure backward, thereby produces the moment of torsion of axial direction, at this moment; Two corresponding supporting posts 314 are respectively shared the reaction force that differs in size, and finally can make fork 32 receive moment of torsion, for this moment of torsion of balance and make the rotation of fork 32 can not interfere other part; Thereby chosen two O type circles and made it separated by a distance; Thereby reaction torque can be provided, make fork 32 keep balance, and can not twist.Pivot angle head 31 also can produce the circumferentially moment of torsion of (tangential), and this moment of torsion limits through the control pivot angle, and the frictional force of O type circle also can overcome a part.
From above description; Can find out; The above embodiments of the present invention have realized following technique effect: Proportional valve for rotating control, has reduced fretting wear with the linear displacement control transformation through rotating the opening degree of the pivot angle head control suction port in the pivot angle control unit; Improve controllability, also improved degree of regulation.Rear side in the inlet adjusting portion of pivot angle head is provided with equally distributed supporting post, and it is tightr that its resultant direction and vent passage in the opposite direction fitted pivot angle head and valve interior wall, effectively guaranteed the tightness of Proportional valve, thereby guaranteed its precision.Have the blocked part on the fork, make the unsettled setting of pivot angle head, further reduced the suffered frictional force of pivot angle control unit, improve its control accuracy.On the fork of pivot angle control unit, also be arranged at intervals with seal ring; Make Proportional valve have better tightness on the one hand; The suffered frictional force of whole pivot angle control unit is further reduced, can play the positioning supports effect to the pivot angle control unit simultaneously.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. Proportional valve; Comprise the first half valve bodies (1) and the second half valve bodies (2) that are fixedly connected with said the first half valve bodies (1), form cavity in the middle of said the first half valve bodies (1) and said the second half valve bodies (2), said cavity is communicated with suction port (11) and air outlet (4) of said Proportional valve; It is characterized in that; Also comprise: pivot angle control unit (3), be arranged in the said cavity, control the opening degree of said suction port (11) through rotating said pivot angle control unit (3);
Said pivot angle control unit (3) comprising: pivot angle head (31); Comprise the inlet adjusting portion (311) that the cavity inner wall located with said suction port (11) fits; Has vent passage (312) in the said inlet adjusting portion (311); Said inlet adjusting portion (311) controls the opening degree of said suction port (11), and said vent passage (312) lower end has the gas channel (313) that is communicated with said air outlet (4);
Said inlet adjusting portion (311) is a sector structure; Said vent passage (312) is positioned at the intermediate portion of said sector structure; Rear side in said inlet adjusting portion (311) is provided with two supporting posts (314), and two said supporting posts (314) are identical with the angle that said vent passage (312) forms.
2. Proportional valve according to claim 1 is characterized in that, said supporting post (314) is provided with the thin slice that soft material is processed with the surface that said half valve body fits.
3. Proportional valve according to claim 1; It is characterized in that; Said pivot angle control unit (3) also comprises: fork (32); Be arranged in the said cavity, an end is fixedly connected with said pivot angle head (31), and the other end stretches out the upper end portion of said the first half valve bodies (1) and said the second half valve bodies (2).
4. Proportional valve according to claim 3 is characterized in that, has blocked part (321) on the said fork (32), makes that said pivot angle head (31) is unsettled to be arranged in the said cavity.
5. Proportional valve according to claim 4 is characterized in that, is provided with packing ring (322) in lower end, said blocked part (321).
6. Proportional valve according to claim 3 is characterized in that, said fork (32) comprises said pivot angle head (31) upper end carrying out spacing multidiameter shaft and spacing locking nut (33) is carried out in said pivot angle head (31) lower end.
7. according to each described Proportional valve in the claim 3 to 6, it is characterized in that said pivot angle control unit (3) also is included in said fork (32) and goes up the seal ring (5) that is provided with at interval.
8. Proportional valve according to claim 7 is characterized in that, said suction port (11) is square opening with said vent passage (312).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010618305 CN102269276B (en) | 2010-12-31 | 2010-12-31 | Proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010618305 CN102269276B (en) | 2010-12-31 | 2010-12-31 | Proportional valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102269276A CN102269276A (en) | 2011-12-07 |
| CN102269276B true CN102269276B (en) | 2012-12-12 |
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ID=45051660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010618305 Active CN102269276B (en) | 2010-12-31 | 2010-12-31 | Proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102269276B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323727A (en) * | 2020-02-28 | 2021-08-31 | 北京汽车动力总成有限公司 | Distributed power valve, engine and vehicle with distributed power valve and engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86209734U (en) * | 1986-12-01 | 1987-08-26 | 上海市川沙县顾路五金厂 | Double fluid control valve with single handle |
| CN101168077A (en) * | 2006-10-23 | 2008-04-30 | 杨福生 | Ventilation proportion valve for respirator |
| CN201582422U (en) * | 2010-01-18 | 2010-09-15 | 李智勇 | Gas flow rate proportional valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3020399B2 (en) * | 1993-12-16 | 2000-03-15 | 旭有機材工業株式会社 | Ball valve |
| KR100994527B1 (en) * | 2007-07-20 | 2010-11-16 | 씨케이디 가부시키 가이샤 | Manual valve |
-
2010
- 2010-12-31 CN CN 201010618305 patent/CN102269276B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86209734U (en) * | 1986-12-01 | 1987-08-26 | 上海市川沙县顾路五金厂 | Double fluid control valve with single handle |
| CN101168077A (en) * | 2006-10-23 | 2008-04-30 | 杨福生 | Ventilation proportion valve for respirator |
| CN201582422U (en) * | 2010-01-18 | 2010-09-15 | 李智勇 | Gas flow rate proportional valve |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平7-167313A 1995.07.04 |
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| Publication number | Publication date |
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| CN102269276A (en) | 2011-12-07 |
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