CN104421157A - Compressor and slide valve device thereof - Google Patents
Compressor and slide valve device thereof Download PDFInfo
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- CN104421157A CN104421157A CN201310379484.0A CN201310379484A CN104421157A CN 104421157 A CN104421157 A CN 104421157A CN 201310379484 A CN201310379484 A CN 201310379484A CN 104421157 A CN104421157 A CN 104421157A
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- China
- Prior art keywords
- guiding valve
- interior volume
- specific ratio
- volume specific
- energy adjustment
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
- F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
Abstract
The invention discloses a slide valve device. The slide valve device comprises an energy regulating slide valve, an interior volume specific ratio slide valve, an interior volume specific ratio slide valve guide block, an interior volume specific ratio slide valve guide rod and an energy regulating guide rod, wherein the interior volume specific ratio slide valve guide rod is used for driving the interior volume specific ratio slide valve to move; the energy regulating guide rod is used for driving the energy regulating slide valve to move; the interior volume specific ratio slide valve is provided with a first sliding chute; the energy regulating slide valve is embedded into the first sliding chute; the inner surface of the first sliding chute is matched with the outer surface of the energy regulating slide valve; the bottom surface of the first sliding chute is provided with a bypass orifice; the interior volume specific ratio slide valve and the interior volume specific ratio slide valve guide block are fixedly connected by a first connecting rod; the interior volume specific ratio slide valve and the interior volume specific ratio slide valve guide block form a gas exhaust opening; the interior volume specific ratio slide valve guide rod is arranged on the interior volume specific ratio slide valve or the interior volume specific ratio slide valve guide block. The slide valve device provided by the invention has the effects of regulating energy and the interior volume specific ratio, and moreover is used for effectively reducing the gas leakage amount of a compression cavity, and improving the regulating precision. The invention also provides a compressor with the slide valve device.
Description
Technical field
The present invention relates to compressor apparatus technical field, particularly a kind of compressor and slide valve gear thereof.
Background technique
In screw compressor, by the adjustment of slide valve gear, reach the volume flow regulated in compressor.Be widely used in screw compressor.
At present, the slide valve gear be applied in screw compressor mainly contains two kinds: the first is single sliding valve structure, the size of its by-pass port is unadjustable, therefore the interior volume specific ratio of compressor is made can only to be fixing value, and can not carry out to compressor the adjustment that best content amasss ratio, degree of regulation is declined; The second is double slide valve structure, two parallel slide valves have surface of contact, by regulating the size of the size adjustment by-pass port of surface of contact, the effect of adjusting energy is reached again by the common slip of two guiding valves, but, the area that two guiding valves account for housing screw rod sealing surface is comparatively large, the gas of compression chamber very easily again between surface of contact to external leakage, make degree of regulation lower.
Therefore, how adjusting energy and regulate interior volume specific ratio; Reduce the gas leak amount of compression chamber, improve degree of regulation, become those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides a kind of slide valve gear, with adjusting energy and adjustment interior volume specific ratio; Reduce the gas leak amount of compression chamber, improve degree of regulation.Present invention also offers a kind of compressor with above-mentioned slide valve gear.
For achieving the above object, the invention provides following technological scheme:
A kind of slide valve gear comprises energy adjustment guiding valve, interior volume specific ratio guiding valve, interior volume specific ratio guiding valve guide block, drives the interior volume specific ratio guiding valve guide rod of described interior volume specific ratio guiding valve movement and drives the energy adjustment guide rod of described energy adjustment guiding valve movement;
Described interior volume specific ratio guiding valve has the first chute, and described energy adjustment guiding valve is embedded in described first chute, and the internal surface of described first chute matches with the outer surface of described energy adjustment guiding valve, and the groove bottom of described first chute is provided with by-pass port;
Described interior volume specific ratio guiding valve is fixedly connected with by head rod with described interior volume specific ratio guiding valve guide block, and described interior volume specific ratio guiding valve and described interior volume specific ratio guiding valve guide block form relief opening;
Described interior volume specific ratio guiding valve guide rod is arranged on described interior volume specific ratio guiding valve or described interior volume specific ratio guiding valve guide block.
Preferably, in above-mentioned slide valve gear, also comprise energy adjustment guiding valve guide block;
Described interior volume specific ratio guiding valve guide block has the second chute, and described regulating slide valve guide block is embedded in described second chute, and the internal surface of described second chute coordinates with the outer surface of described energy adjustment guiding valve guide block;
Described energy adjustment guiding valve is fixedly connected with by the second connecting rod with described energy adjustment guiding valve guide block;
Described energy adjustment guide rod is arranged on described energy adjustment guiding valve or described energy adjustment guiding valve guide block.
Preferably, in above-mentioned slide valve gear, described interior volume specific ratio guiding valve is parallel near the second deflation area of described energy adjustment guiding valve guide block with described energy adjustment guiding valve near the first deflation area of described interior volume specific ratio guiding valve guide block;
Described interior volume specific ratio guiding valve guide block is parallel near the second end face of described energy adjustment guiding valve with described energy adjustment guiding valve guide block near the first end face of described interior volume specific ratio guiding valve.
Preferably, in above-mentioned slide valve gear, described head rod is identical with the length of described second connecting rod;
Described first deflation area equals the ultimate range of described second deflation area to the sidewall of described energy adjustment guiding valve to the ultimate range of the groove sidewall of described interior volume specific ratio guiding valve.
Preferably, in above-mentioned slide valve gear, described interior volume specific ratio guiding valve, described interior volume specific ratio guiding valve guide block and described head rod are integral type structure;
Described energy adjustment guiding valve, described energy adjustment guiding valve guide block and described second connecting rod are integral type structure.
Preferably, in above-mentioned slide valve gear, the 3rd internal surface of the first internal surface of described energy adjustment guiding valve, described interior volume specific ratio guiding valve second internal surface, described energy adjustment guiding valve guide block and the 4th internal surface of described interior volume specific ratio guiding valve guide block are arc surface and all on the second curved surface.
Preferably, in above-mentioned slide valve gear, the radian of described first internal surface, described second internal surface, described 3rd internal surface and described 4th internal surface is all greater than 90 °.
Preferably, in above-mentioned slide valve gear, the first outer surface of described energy adjustment guiding valve and the first groove inwall of described first chute are arc surface, the first outer surface and arranged concentric identical with the diameter of described first groove inwall;
Second outer surface of described energy adjustment guiding valve guide block and the second groove inwall of described second chute are arc surface, the second outer surface and arranged concentric identical with the diameter of described second groove inwall;
Described first outer surface and described second outer surface arranged concentric.
Preferably, in above-mentioned slide valve gear, the outer surface of described interior volume specific ratio guiding valve outer surface and described interior volume specific ratio guiding valve guide block is arc surface; The outer surface of described interior volume specific ratio guiding valve outer surface and described interior volume specific ratio guiding valve guide block is all on first surface.
Preferably, in above-mentioned slide valve gear, the outer surface radian of described interior volume specific ratio guiding valve outer surface and described interior volume specific ratio guiding valve guide block is all greater than 90 °.
Preferably, in above-mentioned slide valve gear, described interior volume specific ratio guiding valve guide block is provided with side wall away from the second chute end of described interior volume specific ratio guiding valve, and described interior volume specific ratio guiding valve guide rod is arranged on described side wall;
Described energy adjustment guide rod is arranged on described energy adjustment guiding valve guide block.
Preferably, in above-mentioned slide valve gear, described interior volume specific ratio guiding valve guide rod is the sleeve guide rod be connected with described second chute, and it is inner that described energy adjustment leader casing is located at described interior volume specific ratio guiding valve guide rod.
Preferably, in above-mentioned slide valve gear, described interior volume specific ratio guiding valve is provided with the case follower guide rod be communicated with described first chute;
Described energy adjustment guiding valve is provided with housing inner guide;
It is inner that described housing inner guide is sheathed on described case follower guide rod.
Preferably, in above-mentioned slide valve gear, described energy adjustment guide rod is threaded with described energy adjustment guiding valve guide block;
Described housing inner guide is threaded with described energy adjustment guiding valve;
Described interior volume specific ratio guiding valve guide rod is threaded with described interior volume specific ratio guiding valve guide block.
Preferably, in above-mentioned slide valve gear, described case follower guide rod and described interior volume specific ratio guiding valve are integral type structure.
Preferably, in above-mentioned slide valve gear, it is characterized in that, described by-pass port is square orifice, and described energy adjustment guiding valve is identical with the bearing of trend of described square orifice with the relative sliding direction of described interior volume specific ratio guiding valve.
Preferably, in above-mentioned slide valve gear, align with the groove sidewall of described first chute in one end of described by-pass port.
Present invention also offers a kind of compressor, have slide valve gear, described slide valve gear is the slide valve gear as described in above-mentioned any one.
As can be seen from above-mentioned technological scheme, slide valve gear provided by the invention, when compressor oepration at full load, the first chute on interior volume specific ratio guiding valve is fitted away from the sidewall of energy adjustment guiding valve guide block away from the groove sidewall of interior volume specific ratio guiding valve guide block and energy adjustment guiding valve; Interior volume specific ratio guiding valve forms exhaust gap near the first deflation area of interior volume specific ratio guiding valve slide block and interior volume specific ratio guiding valve slide block near the first surface of interior volume specific ratio guiding valve, slide valve gear is assemblied in compression and interior after, the outer wall of exhaust gap and casing inner wall and screw rotor forms relief opening; When compressor is from when regulating to sub load at full capacity, by energy adjustment guide rod, energy adjustment guiding valve is moved in the first chute of interior volume specific ratio guiding valve, sidewall moves away groove sidewall gradually, and the first deflation area of interior volume specific ratio guiding valve also spaces out gradually with the deflation area of energy adjustment guiding valve; The gas of compression chamber is entered by the gap between sidewall and groove sidewall, and is gone out by the by-pass port bypass on interior volume specific ratio guiding valve, thus realizes the function of energy adjustment; Making energy regulating slide valve relative with interior volume specific ratio guiding valve fixing, by regulating the position of interior volume specific ratio guiding valve in the casing of compressor, regulating the relative position of the first deflation area and rotor, to reach the function regulating interior volume specific ratio.Slide valve gear provided by the invention, in compressor at full capacity mediation process, by the relative movement of energy adjustment guiding valve and interior volume specific ratio guiding valve, reach the effect regulating by-pass port aperture, by regulating the relative position of relief opening and rotor, regulating by-pass port aperture, reaching the effect of adjusting energy; Energy adjustment guiding valve is connected by embedded mode with interior volume specific ratio guiding valve, efficiently reduces the gas leak amount of compression chamber, improves degree of regulation.
Present invention also offers a kind of compressor with above-mentioned slide valve gear.Because above-mentioned slide valve gear has above-mentioned technique effect, the compressor with this slide valve gear also should have same technique effect.Introduce no longer one by one at this.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the slide valve gear that Fig. 1 provides for the embodiment of the present invention;
The exploded perspective view of the slide valve gear that Fig. 2 provides for the embodiment of the present invention;
First structural representation of the interior volume specific ratio guiding valve that Fig. 3 provides for the embodiment of the present invention, head rod and interior volume specific ratio guiding valve guide block;
Fig. 4 is for looking schematic diagram in a left side for the slide valve gear that the embodiment of the present invention provides;
Fig. 5 is the cut-away illustration along A-A cutting plane in Fig. 4;
Second structural representation of the interior volume specific ratio guiding valve that Fig. 6 provides for the embodiment of the present invention, head rod and interior volume specific ratio guiding valve guide block.
Wherein,
Energy adjustment guiding valve-1, first outer surface---11, sidewall-12, 3rd internal surface-13, second deflation area-14, second connecting rod-15, housing inner guide-16, interior volume specific ratio guiding valve-2, interior volume specific ratio guiding valve end wall-21, head rod-22, groove sidewall-23, first groove inwall-24, second internal surface-25, by-pass port-26, first deflation area-27, case follower guide rod-28, energy adjustment guiding valve guide block-3, second outer surface-31, energy adjustment guiding valve guide block end wall-32, second end face-33, interior volume specific ratio guiding valve guide block-4, side wall-41, tapped hole-42, second groove inwall-43, energy adjustment guide rod-44, interior volume specific ratio guiding valve guide rod-45, first end face-46, first surface-a, second curved surface-b.
Embodiment
The invention discloses a kind of slide valve gear, the invention provides a kind of slide valve gear, with adjusting energy and adjustment interior volume specific ratio; Reduce the gas leak amount of compression chamber, improve degree of regulation.Present invention also offers a kind of compressor with above-mentioned slide valve gear.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, Fig. 2 and Fig. 3, the structural representation of the slide valve gear that Fig. 1 provides for the embodiment of the present invention; The exploded perspective view of the slide valve gear that Fig. 2 provides for the embodiment of the present invention; First structural representation of the interior volume specific ratio guiding valve that Fig. 3 provides for the embodiment of the present invention, head rod and interior volume specific ratio guiding valve guide block.
Embodiments provide a kind of slide valve gear, comprise a kind of slide valve gear, comprise energy adjustment guiding valve 1, interior volume specific ratio guiding valve 2, interior volume specific ratio guiding valve guide block 4, drive the interior volume specific ratio guiding valve guide rod 45 of interior volume specific ratio guiding valve 2 movement and the energy adjustment guide rod 44 of driving-energy regulating slide valve 1 movement; Interior volume specific ratio guiding valve 2 has the first chute, and energy adjustment guiding valve 1 is embedded in the first chute, and the internal surface of the first chute matches with the outer surface of energy adjustment guiding valve 1, and the groove bottom of the first chute is provided with by-pass port 26; Interior volume specific ratio guiding valve 2 is fixedly connected with by head rod 22 with interior volume specific ratio guiding valve guide block 4, and interior volume specific ratio guiding valve 2 and interior volume specific ratio guiding valve guide block 4 form relief opening; Interior volume specific ratio guiding valve guide rod 45 is arranged on interior volume specific ratio guiding valve 2 or interior volume specific ratio guiding valve guide block 4.
The slide valve gear that the embodiment of the present invention provides, when compressor oepration at full load, the first chute on interior volume specific ratio guiding valve 2 is fitted away from the sidewall 12 of energy adjustment guiding valve guide block 3 with energy adjustment guiding valve 1 away from the groove sidewall 23 of interior volume specific ratio guiding valve guide block 4; Interior volume specific ratio guiding valve 2 forms exhaust gap with interior volume specific ratio guiding valve slide block 4 near the first surface 46 of interior volume specific ratio guiding valve 2 near the first deflation area 27 of interior volume specific ratio guiding valve slide block 4, slide valve gear is assemblied in compression and interior after, the outer wall of exhaust gap and casing inner wall and screw rotor forms relief opening; When compressor is from when regulating to sub load at full capacity, by energy adjustment guide rod 44, energy adjustment guiding valve 1 is moved in the first chute of interior volume specific ratio guiding valve 2, sidewall 12 moves away groove sidewall 23 gradually, and the first deflation area 27 of interior volume specific ratio guiding valve 2 also spaces out gradually with the deflation area 14 of energy adjustment guiding valve 1; The gas of compression chamber is entered by the gap between sidewall 12 and groove sidewall 23, and is gone out by by-pass port 26 bypass on interior volume specific ratio guiding valve 2, thus realizes the function of energy adjustment; Making energy regulating slide valve 1 relative with interior volume specific ratio guiding valve 2 fixing, by regulating the position of interior volume specific ratio guiding valve 2 in the casing of compressor, regulating the relative position of the first deflation area 27 and rotor, to reach the function regulating interior volume specific ratio.The slide valve gear that the embodiment of the present invention provides, in compressor at full capacity mediation process, by the relative movement of energy adjustment guiding valve 1 with interior volume specific ratio guiding valve 2, regulate by-pass port 26 aperture, reach the effect regulating interior volume specific ratio, by regulating the relative position of relief opening and rotor, reach the effect of adjusting energy; Energy adjustment guiding valve 1 is connected by embedded mode with interior volume specific ratio guiding valve 2, efficiently reduces the gas leak amount of compression chamber, improves degree of regulation.
In the slide valve gear that the present embodiment provides, also comprise energy adjustment guiding valve guide block 3; Interior volume specific ratio guiding valve guide block 4 has the second chute, and regulating slide valve guide block 3 is embedded in the second chute, and the internal surface of the second chute coordinates with the outer surface of energy adjustment guiding valve guide block 3; Energy adjustment guiding valve 1 is fixedly connected with by the second connecting rod 15 with energy adjustment guiding valve guide block 3; Energy adjustment guide rod 44 is arranged on energy adjustment guiding valve 1 or energy adjustment guiding valve guide block 3.Under the prerequisite that energy adjustment guiding valve guide block 3 to be fixedly connected with energy adjustment guiding valve 1 by the second connecting rod 15 and interior volume specific ratio guiding valve 2 is fixedly connected with interior volume specific ratio guiding valve guide block 4 by head rod 22, by increasing energy adjustment guiding valve guide block 3, make itself and interior volume specific ratio guiding valve guide block 4 relative sliding, effectively improve the sliding stability of energy adjustment guiding valve 1 and interior volume specific ratio guiding valve 2.
Preferably, interior volume specific ratio guiding valve 2 is parallel near the second deflation area 14 of energy adjustment guiding valve guide block 3 with energy adjustment guiding valve 1 near the first deflation area 27 of interior volume specific ratio guiding valve guide block 4; Interior volume specific ratio guiding valve guide block 4 is parallel near the second end face 33 of energy adjustment guiding valve 1 with energy adjustment guiding valve guide block 3 near the first end face 46 of interior volume specific ratio guiding valve 2, so that improve degree of regulation.
Further, the clearance distance of the first deflation area 27 to the first end face 46 is identical with the clearance distance of the second deflation area 14 to the second end face 33; First deflation area 27 equals the ultimate range of the second deflation area 14 to the sidewall 12 of energy adjustment guiding valve 1 to the ultimate range of the groove sidewall 23 of interior volume specific ratio guiding valve 2.Namely when compressor oepration at full load, the first chute on interior volume specific ratio guiding valve 2 is fitted away from the sidewall 12 of energy adjustment guiding valve guide block 3 with energy adjustment guiding valve 1 away from the groove sidewall 23 of interior volume specific ratio guiding valve guide block 4, make the first deflation area 27 and the second deflation area 14 in the same plane; Because head rod 22 is identical with the length of the second connecting rod 15, make the clearance distance of the first deflation area 27 to the first end face 46 identical with the clearance distance of the second deflation area 14 to the second end face 33, namely the first deflation area 27 and the second deflation area 14 in the same plane time, the first end face 46 and the second end face 33 in the same plane.
In order to reduce parts count, so that install, interior volume specific ratio guiding valve 2, interior volume specific ratio guiding valve guide block 4 and head rod 22 are integral type structure; Energy adjustment guiding valve 1, energy adjustment guiding valve guide block 3 and the second connecting rod 15 are integral type structure.Wherein, the integral structure of interior volume specific ratio guiding valve 2, interior volume specific ratio guiding valve guide block 4 and head rod 22 and the integral structure of energy adjustment guiding valve 1, energy adjustment guiding valve guide block 3 and the second connecting rod 15 are foundry goods.
As shown in Figure 4, the first internal surface 13 of energy adjustment guiding valve 1, interior volume specific ratio guiding valve 2 second internal surface 25, the 3rd internal surface 13 of energy adjustment guiding valve guide block 3 and the 4th internal surface 47 of interior volume specific ratio guiding valve guide block 4 are arc surface and all on the second curved surface b.Also outer surface can be set to the face of other structures, as folding face or plane.
Preferably, the radian of the first internal surface 13, second internal surface 25, the 3rd internal surface 13 and the 4th internal surface 47 is all greater than 90 °.
Further, the first outer surface 11 of energy adjustment guiding valve 1 and the first groove inwall 24 of the first chute are arc surface, the first outer surface 11 and arranged concentric identical with the diameter of the first groove inwall 24; Second outer surface 31 of energy adjustment guiding valve guide block 3 and the second groove inwall 43 of the second chute are arc surface, the second outer surface 31 and arranged concentric identical with the diameter of the second groove inwall 43; First outer surface 11 and the second outer surface 31 arranged concentric.Also outer surface can be set to the face of other structures, as folding face or plane.
It should be noted that, the first outer surface 11 can be identical with the diameter of the second outer surface 31, also can be different, do not do specific requirement and all within protection domain at this.
The outer surface of interior volume specific ratio guiding valve 2 outer surface and interior volume specific ratio guiding valve guide block 4 is arc surface; Interior volume specific ratio guiding valve 2 outer surface is identical with the diameter of the outer surface of interior volume specific ratio guiding valve guide block 4 and its center of circle is coaxially arranged.Make the outer surface of interior volume specific ratio guiding valve 2 outer surface and interior volume specific ratio guiding valve guide block 4 all on the first arc surface a, effectively improve slide valve gear that the present embodiment the provides whole slide stability relative to the casing of compressor.Also outer surface can be set to the face of other structures, as folding face or plane.
Preferably, the outer surface radian of interior volume specific ratio guiding valve 2 outer surface and interior volume specific ratio guiding valve guide block 4 is all greater than 90 °.
Wherein, it should be noted that above-mentioned outer surface is the one sides of each parts away from compressor drum, internal surface is the one sides of each parts near compressor drum.
As shown in Figure 5, interior volume specific ratio guiding valve guide block 4 is provided with side wall 41 away from the second chute end of interior volume specific ratio guiding valve 2, and interior volume specific ratio guiding valve guide rod 45 is arranged on side wall 41; Energy adjustment guide rod 44 is arranged on energy adjustment guiding valve guide block 3.By energy adjustment guide rod 44 and interior volume specific ratio guiding valve guide rod 45 are arranged at homonymy, the relative position of guide rod 44 and interior volume specific ratio guiding valve guide rod 45 can be regulated by adjusting energy easily.Further, by arranging side wall 41, efficiently avoid the situation of energy adjustment guiding valve guide block 3 by the slippage of interior volume specific ratio guiding valve guide block 4.
Wherein, by controlling the thickness of energy adjustment guiding valve guide block 3, when energy adjustment guiding valve guide block 3 is contacted with side wall 41 away from the energy adjustment guiding valve guide block end wall 32 of energy adjustment guiding valve 1, compressor is in zero load state.
Also can not arrange side wall 41, be arranged at by energy adjustment guide rod 44 on energy adjustment guiding valve guide block 3, interior volume specific ratio guiding valve guide rod 45 be arranged in parallel with energy adjustment guide rod 44 and is connected with interior volume specific ratio guiding valve 2 or interior volume specific ratio guiding valve guide block 4.
Further, interior volume specific ratio guiding valve guide rod 45 is the sleeve guide rod be connected with the second chute, and energy adjustment guide rod 44 enters the second chute through interior volume specific ratio guiding valve guide rod 45, is connected with energy adjustment guiding valve guide block 3.By energy adjustment guide rod 44 and interior volume specific ratio guiding valve guide rod 45 coaxially being arranged, further improve degree easy to adjust.Side wall 41 is provided with the tapped hole 42 matched with the outside thread of volume-ratio slide valve guide rod 45.
In order to improve the stability that energy adjustment guiding valve 1 slides mutually with interior volume specific ratio guiding valve 2 further, interior volume specific ratio guiding valve 2 is provided with and is communicated with case follower guide rod 28 with the first chute, case follower guide rod 28 is arranged at the interior volume specific ratio guiding valve end wall 21 of interior volume specific ratio guiding valve 2 away from interior volume specific ratio guiding valve guide block 4; Energy adjustment guiding valve 1 is provided with housing inner guide 16; It is inner that housing inner guide 16 is sheathed on case follower guide rod 28.By arranging case follower guide rod 28 and the housing inner guide 16 of mutual sheathing, effectively prevent the situation that energy adjustment guiding valve 1 is come off by the first chute, avoiding the relative separation of energy adjustment guiding valve 1 and interior volume specific ratio guiding valve 2.
In the present embodiment, the link that energy adjustment guiding valve 1, second connecting rod 15 and energy adjustment guiding valve guide block 3 form is arranged at interior volume specific ratio guiding valve 2, on link that head rod 22 and interior volume specific ratio guiding valve guide block 4 form, then energy adjustment guide rod 44 is threaded with energy adjustment guiding valve guide block 3; Housing inner guide 16 is threaded with energy adjustment guiding valve 1; Interior volume specific ratio guiding valve guide rod 45 is threaded with interior volume specific ratio guiding valve guide block 4.
Further, in order to reduce parts count, case follower guide rod 28 and interior volume specific ratio guiding valve 2 are integral type structure.
By-pass port 26 is square orifice, and energy adjustment guiding valve 1 is identical with the bearing of trend of square orifice with the relative sliding direction of interior volume specific ratio guiding valve 2.The extended length of square orifice is set according to energy adjustment guiding valve 1 and the length of interior volume specific ratio guiding valve 2 and the concrete size of compressor.The relative sliding distance of energy adjustment guiding valve 1 and interior volume specific ratio guiding valve 2 is directly proportional to the open area of by-pass port 26, is further convenient to the adjustment of by-pass port 26.
As shown in Figure 6, align with the groove sidewall 23 of the first chute in one end of by-pass port 26.Namely, after the sidewall 12 of energy regulating slide valve 1 is separated with the groove sidewall 23 of the first chute, namely by-pass port 26 is opened.
The embodiment of the present invention additionally provides a kind of compressor, has slide valve gear, and slide valve gear is as any one slide valve gear above-mentioned.Because above-mentioned slide valve gear has above-mentioned technique effect, the compressor with this slide valve gear also should have same technique effect.Introduce no longer one by one at this.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (18)
1. a slide valve gear, it is characterized in that, comprise energy adjustment guiding valve (1), interior volume specific ratio guiding valve (2), interior volume specific ratio guiding valve guide block (4), drive the interior volume specific ratio guiding valve guide rod (45) of described interior volume specific ratio guiding valve (2) movement and drive the energy adjustment guide rod (44) of described energy adjustment guiding valve (1) movement;
Described interior volume specific ratio guiding valve (2) has the first chute, described energy adjustment guiding valve (1) is embedded in described first chute, the internal surface of described first chute matches with the outer surface of described energy adjustment guiding valve (1), and the groove bottom of described first chute is provided with by-pass port (26);
Described interior volume specific ratio guiding valve (2) is fixedly connected with by head rod (22) with described interior volume specific ratio guiding valve guide block (4), and described interior volume specific ratio guiding valve (2) and described interior volume specific ratio guiding valve guide block (4) form relief opening;
Described interior volume specific ratio guiding valve guide rod (45) is arranged on described interior volume specific ratio guiding valve (2) or described interior volume specific ratio guiding valve guide block (4).
2. slide valve gear as claimed in claim 1, is characterized in that, also comprise energy adjustment guiding valve guide block (3);
Described interior volume specific ratio guiding valve guide block (4) has the second chute, and described regulating slide valve guide block (3) is embedded in described second chute, and the internal surface of described second chute coordinates with the outer surface of described energy adjustment guiding valve guide block (3);
Described energy adjustment guiding valve (1) is fixedly connected with by the second connecting rod (15) with described energy adjustment guiding valve guide block (3);
Described energy adjustment guide rod (44) is arranged on described energy adjustment guiding valve (1) or described energy adjustment guiding valve guide block (3).
3. slide valve gear as claimed in claim 2, it is characterized in that, described interior volume specific ratio guiding valve (2) is parallel near second deflation area (14) of described energy adjustment guiding valve guide block (3) with described energy adjustment guiding valve (1) near first deflation area (27) of described interior volume specific ratio guiding valve guide block (4);
Described interior volume specific ratio guiding valve guide block (4) is parallel near second end face (33) of described energy adjustment guiding valve (1) with described energy adjustment guiding valve guide block (3) near first end face (46) of described interior volume specific ratio guiding valve (2).
4. slide valve gear as claimed in claim 2, it is characterized in that, described head rod (22) is identical with the length of described second connecting rod (15);
Described first deflation area (27) equals the ultimate range of described second deflation area (14) to the sidewall (12) of described energy adjustment guiding valve (1) to the ultimate range of the groove sidewall (23) of described interior volume specific ratio guiding valve (2).
5. slide valve gear as claimed in claim 2, it is characterized in that, described interior volume specific ratio guiding valve (2), described interior volume specific ratio guiding valve guide block (4) and described head rod (22) they are integral type structure;
Described energy adjustment guiding valve (1), described energy adjustment guiding valve guide block (3) and described second connecting rod (15) are integral type structure.
6. slide valve gear as claimed in claim 2, it is characterized in that, the 3rd internal surface (13) of first internal surface (13) of described energy adjustment guiding valve (1), second internal surface (25) of described interior volume specific ratio guiding valve (2), described energy adjustment guiding valve guide block (3) and the 4th internal surface (47) of described interior volume specific ratio guiding valve guide block (4) are arc surface and all on the second curved surface (b).
7. slide valve gear as claimed in claim 6, is characterized in that, the radian of described first internal surface (13), described second internal surface (25), described 3rd internal surface (13) and described 4th internal surface (47) is all greater than 90 °.
8. slide valve gear as claimed in claim 2, it is characterized in that, first outer surface (11) of described energy adjustment guiding valve (1) and the first groove inwall (24) of described first chute are arc surface, the first outer surface (11) and arranged concentric identical with the diameter of described first groove inwall (24);
Second outer surface (31) of described energy adjustment guiding valve guide block (3) and the second groove inwall (43) of described second chute are arc surface, the second outer surface (31) and arranged concentric identical with the diameter of described second groove inwall (43);
Described first outer surface (11) and described second outer surface (31) arranged concentric.
9. slide valve gear as claimed in claim 2, it is characterized in that, the outer surface of described interior volume specific ratio guiding valve (2) outer surface and described interior volume specific ratio guiding valve guide block (4) is arc surface; The outer surface of described interior volume specific ratio guiding valve (2) outer surface and described interior volume specific ratio guiding valve guide block (4) is all on first surface (a).
10. slide valve gear as claimed in claim 9, it is characterized in that, the outer surface radian of described interior volume specific ratio guiding valve (2) outer surface and described interior volume specific ratio guiding valve guide block (4) is all greater than 90 °.
11. slide valve gears as claimed in claim 2, it is characterized in that, described interior volume specific ratio guiding valve guide block (4) is provided with side wall (41) away from the second chute end of described interior volume specific ratio guiding valve (2), and described interior volume specific ratio guiding valve guide rod (45) is arranged on described side wall (41);
Described energy adjustment guide rod (44) is arranged on described energy adjustment guiding valve guide block (3).
12. slide valve gears as claimed in claim 11, it is characterized in that, described interior volume specific ratio guiding valve guide rod (45) is the sleeve guide rod be connected with described second chute, and it is inner that described energy adjustment guide rod (44) is sheathed on described interior volume specific ratio guiding valve guide rod (45).
13. slide valve gears as claimed in claim 11, is characterized in that, described interior volume specific ratio guiding valve (2) are provided with the case follower guide rod (28) be communicated with described first chute;
Described energy adjustment guiding valve (1) is provided with housing inner guide (16);
It is inner that described housing inner guide (16) is sheathed on described case follower guide rod (28).
14. slide valve gears as claimed in claim 13, is characterized in that, described energy adjustment guide rod (44) is threaded with described energy adjustment guiding valve guide block (3);
Described housing inner guide (16) is threaded with described energy adjustment guiding valve (1);
Described interior volume specific ratio guiding valve guide rod (45) is threaded with described interior volume specific ratio guiding valve guide block (4).
15. slide valve gears as claimed in claim 14, is characterized in that, described case follower guide rod (28) and described interior volume specific ratio guiding valve (2) are integral type structure.
16. slide valve gears as described in any one of claim 1-15, it is characterized in that, described by-pass port (26) is square orifice, and described energy adjustment guiding valve (1) is identical with the bearing of trend of described square orifice with the relative sliding direction of described interior volume specific ratio guiding valve (2).
17. slide valve gears as described in any one of claim 16, it is characterized in that, align with the groove sidewall (23) of described first chute in one end of described by-pass port (26).
18. 1 kinds of compressors, have slide valve gear, it is characterized in that, described slide valve gear is the slide valve gear as described in any one of claim 1-17.
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| CN201310379484.0A CN104421157B (en) | 2013-08-27 | 2013-08-27 | Compressor and slide valve gear thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310379484.0A CN104421157B (en) | 2013-08-27 | 2013-08-27 | Compressor and slide valve gear thereof |
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| CN104421157A true CN104421157A (en) | 2015-03-18 |
| CN104421157B CN104421157B (en) | 2016-12-28 |
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| CN110925199A (en) * | 2019-11-08 | 2020-03-27 | 珠海格力电器股份有限公司 | Screw compressor, control method thereof and refrigeration system |
| WO2021036470A1 (en) * | 2019-08-26 | 2021-03-04 | 珠海格力电器股份有限公司 | Compressor and air conditioner |
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|---|---|
| CN104421157B (en) | 2016-12-28 |
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