CN204419576U - A kind of energy-regulating mechanism of helical-lobe compressor - Google Patents
A kind of energy-regulating mechanism of helical-lobe compressor Download PDFInfo
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- CN204419576U CN204419576U CN201420814625.7U CN201420814625U CN204419576U CN 204419576 U CN204419576 U CN 204419576U CN 201420814625 U CN201420814625 U CN 201420814625U CN 204419576 U CN204419576 U CN 204419576U
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Abstract
The utility model relates to a kind of energy-regulating mechanism of helical-lobe compressor, comprise guiding valve, connecting rod and oily piston, one end of described connecting rod is fixed in guiding valve, described oily piston sleeve to be located on connecting rod and to be positioned at the other end of connecting rod, also comprise axle sleeve and elastic component, described axle sleeve and elastic component are sheathed on connecting rod, and described axle sleeve and connecting rod are rotatably connected, one end of described elastic component is connected with oily piston, and the other end of described elastic component is connected with axle sleeve.Energy-regulating mechanism of helical-lobe compressor of the present utility model have running vibration low, running precision is high, run advantage smoothly.
Description
Technical field
The utility model relates to the accessory of chiller plant, particularly a kind of energy-regulating mechanism of helical-lobe compressor.
Background technique
The operating end load of helical-lobe compressor can change, and needs to carry out energy adjustment to helical-lobe compressor, to reduce the power consumpiton of compressor.The change of outside climatic condition simultaneously and the change of operating conditions, the outer pressure ratio of helical-lobe compressor also can be changed in a larger scope, cause compressor under-voltage contracting in various degree or overcompression, cause additional power consumption, therefore need to carry out interior volume specific ratio adjustment to helical-lobe compressor.Current capacity controlling gear is mainly adopted as sliding valve style energy adjustment, and it installs an axially movable guiding valve between two rotors, and namely mobile guiding valve changes effective active length of rotor, thus reaches the effect of adjusting energy.
Energy-regulating mechanism of helical-lobe compressor of the prior art is made up of energy adjustment guiding valve, oily piston and linkage mechanism thereof, and vibration is large, precision is low and run not smooth problem to adopt the helical-lobe compressor of the energy-regulating mechanism of helical-lobe compressor of this structure operationally easily to produce.
Model utility content
Technical problem to be solved in the utility model is: provide a kind of energy-regulating mechanism of helical-lobe compressor that helical-lobe compressor is operated steadily.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of energy-regulating mechanism of helical-lobe compressor, comprise guiding valve, connecting rod and oily piston, one end of described connecting rod is fixed in guiding valve, described oily piston sleeve to be located on connecting rod and to be positioned at the other end of connecting rod, also comprise axle sleeve and elastic component, described axle sleeve and elastic component are sheathed on connecting rod, and described axle sleeve and connecting rod are rotatably connected, one end of described elastic component is connected with oily piston, and the other end of described elastic component is connected with axle sleeve.
Further, one end of described connecting rod is screwed in guiding valve, and described oily piston is fixed on the other end of connecting rod by the first nut.
Further, also bearing is provided with between described axle sleeve and connecting rod.
Further, described elastic component is spring.
Further, described axle sleeve is provided with the second nut, axle sleeve is fixed on connecting rod by described second nut, is provided with nut lock washer between described second nut and connecting rod.
The beneficial effects of the utility model are:
(1) design comprises the energy-regulating mechanism of helical-lobe compressor of guiding valve, connecting rod, oily piston, axle sleeve and spring structure, reduce the hole of oily piston, connecting rod and cavity, make oily piston, connecting rod obtain effectively supporting by sleeve supporting simultaneously, in the process that connecting rod is run moving along with guiding valve, connecting rod center can not cause running steady because of shake or rock, guarantee connecting rod and oily piston running vibrate low, running precision is higher;
(2) compressor shutdown and low load operation process, guiding valve needs to fall back on minimum load (25%) place, and because guiding valve and valve chute contact position reduce, the guiding valve dropped in exhaust cavity contacts with exhaust gas and increases.High pressure gas gas produces severe impact to guiding valve; Two supports (guiding valve and slide valve slot, piston end) is only had due to structure can be adjusted, air pressure severe impact causes the sliding high vibration of valve and clashes into compressor drum, compressor drum is caused to damage, reduce compressor working life, added sleeve supporting in the design, make guiding valve at compressor shutdown and uninstall process, guiding valve rocks and is suppressed, structure can be adjusted to run more stable, avoid compressor drum to be subject to impact injury; In like manner in compressor unloading process, because the some of guiding valve exits from slide valve slot, the part of valve balladeur train sky is subject to the impact of high pressure gas gas, produce high vibration, exist and clash into compressor drum, cause compressor drum to damage, and cause and can run unstable by regulating mechanism, the design adds sleeve supporting and guiding valve is rocked be suppressed, and structure can be adjusted to run more stable.
(3), in prior art, because compressor start initial load is large, inrush current is large, easily has a strong impact on compressor operating and working life etc.The utility model is by design axle sleeve supporting structure, when valve slides into 25% position (valve is sliding contacts 25% with valve chute), due to the effect of supporting, framework can be adjusted more stable, guiding valve can not produce obviously shake and wait the situation affecting unit operation to occur under the impact of pressurized gas.And simultaneously compressor can be made to start under low load (25% load), inrush current is lowered, decreases the excessive impact on compressor generation of inrush current, extend compressor working life.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional view of the energy-regulating mechanism of helical-lobe compressor of the utility model embodiment.
Label declaration:
1, guiding valve; 2, connecting rod; 3, oily piston; 4, axle sleeve; 5, elastic component; 6, bearing; 7, the first nut; 8, the second nut; 9, rotor; 10, fuselage.
Embodiment
By describing technology contents of the present utility model in detail, realized object and effect, accompanying drawing is coordinated to be explained below in conjunction with mode of execution.
The design of the utility model most critical is: find that helical-lobe compressor operationally runs the rocking and simple rely on pressurized gas promote oily piston return oily piston generation Caton phenomenon caused of connecting rod of not smooth problem due to energy-regulating mechanism of helical-lobe compressor, thus by setting up axle sleeve and elastic component on connecting rod, thus make it have operate steadily, beneficial effect smoothly.
Please refer to Fig. 1, a kind of energy-regulating mechanism of helical-lobe compressor of the present utility model, comprise guiding valve 1, connecting rod 2 and oily piston 3, one end of described connecting rod 2 is fixed in guiding valve 1, and described oily piston 3 to be sheathed on connecting rod 2 and to be positioned at the other end of connecting rod 2, also comprises axle sleeve 4 and elastic component 5, described axle sleeve 4 and elastic component 5 are sheathed on connecting rod 2, described axle sleeve 4 is rotatably connected with connecting rod 2, and one end of described elastic component 5 is connected with oily piston 3, and the other end of described elastic component 5 is connected with axle sleeve 4.
Principle of the present utility model is: when vibrating greatly in the face of easily producing when adopting the work of the helical-lobe compressor of energy-regulating mechanism of helical-lobe compressor of the prior art (being made up of energy adjustment guiding valve, oily piston and linkage mechanism thereof), precision being low and run not smooth problem, cause the reason of this problem to be not clear and definite.Those skilled in the art often tend to be primarily focused on the overall structure of energy-regulating mechanism of helical-lobe compressor and the adaptation issues of helical-lobe compressor, and the structure of attempting by improving helical-lobe compressor itself, make it more mate with existing energy-regulating mechanism of helical-lobe compressor, thus make the helical-lobe compressor comprising energy-regulating mechanism of helical-lobe compressor operationally have good stationarity and smoothness.But this mode needs the input of larger human and material resources, cost is higher.And the application's model utility people finds that this problem is the rocking of connecting rod due to energy-regulating mechanism of helical-lobe compressor, and simple rely on pressurized gas to promote oily piston to return oily piston generation Caton phenomenon is caused, thus design axle sleeve targetedly to suppress the shaking phenomenon of connecting rod, particularly, the effect of axle sleeve is equivalent to the slide rail adding connecting rod, radial space during limit value connecting rod slides, thus be equivalent to the fit up gap that reduces even to eliminate between connecting rod and cavity, axle sleeve supports structure can be adjusted to be formed simultaneously, suppress because exhaust gas impacts rocking of generation.Design flexibility part is to overcome the simple Caton phenomenon relying on pressurized gas to promote oil piston when oily piston is return.Model utility people, by the energy-regulating mechanism of helical-lobe compressor after improvement is placed in helical-lobe compressor, tests, and vibration when finding helical-lobe compressor work obviously significantly reduces, and has the advantage that precision is high, run smoothness.Because connecting rod and oily piston are the very little parts that take up space in helical-lobe compressor, those skilled in the art often ignore the impact that connecting rod and this widget of oily piston produce helical-lobe compressor entirety.
From foregoing description, the beneficial effects of the utility model are:
(1) design comprises the energy-regulating mechanism of helical-lobe compressor of guiding valve, connecting rod, oily piston, axle sleeve and spring structure, reduce the hole of oily piston, connecting rod and cavity, by sleeve supporting, oily piston, connecting rod are obtained simultaneously and effectively support and slide restriction (i.e. the radial deflection of connecting rod), in the process that connecting rod is run moving along with guiding valve, connecting rod center can not cause running steady because of shake or rock, guarantee connecting rod and oily piston running vibrate low, running precision is higher;
(2) compressor shutdown and low load operation process, guiding valve needs to fall back on minimum load (25%) place, and because guiding valve and valve chute contact position reduce, the guiding valve dropped in exhaust cavity contacts with exhaust gas and increases.High pressure gas gas produces severe impact to guiding valve; Two supports (guiding valve and slide valve slot, piston end) is only had due to structure can be adjusted, air pressure severe impact causes the sliding high vibration of valve and clashes into compressor drum, compressor drum is caused to damage, reduce compressor working life, added sleeve supporting in the design, make guiding valve at compressor shutdown and uninstall process, guiding valve rocks and is suppressed, structure can be adjusted to run more stable, avoid compressor drum to be subject to impact injury; In like manner in compressor unloading process, because the some of guiding valve exits from slide valve slot, the part of valve balladeur train sky is subject to the impact of high pressure gas gas, produce high vibration, exist and clash into compressor drum, cause compressor drum to damage, and cause and can run unstable by regulating mechanism, the design adds sleeve supporting and guiding valve is rocked be suppressed, and structure can be adjusted to run more stable.
(3), in prior art, because compressor start initial load is large, inrush current is large, easily has a strong impact on compressor operating and working life etc.The utility model is by design axle sleeve supporting structure, when valve slides into 25% position (valve is slided and rotor contact 25%), due to the effect of supporting, framework can be adjusted more stable, guiding valve can not produce obviously shake and wait the situation affecting unit operation to occur under the impact of pressurized gas.And simultaneously compressor can be made to start under low load (25% load), inrush current is lowered, decreases the excessive impact on compressor generation of inrush current, extend compressor working life.
Further, one end of described connecting rod 2 is screwed in guiding valve 1, and described oily piston 3 is fixed on the other end of connecting rod 2 by the first nut 7.
Further, bearing 6 is also provided with between described axle sleeve 4 and connecting rod 2.
Seen from the above description, the design of axle sleeve has the effect of rigid bearing and protection connecting rod, simultaneously limiting rod skew radially.
Further, described elastic component 5 is spring.
Further, described axle sleeve 4 is provided with the second nut 8, axle sleeve 4 is fixed on connecting rod 2 by described second nut 8, is provided with nut lock washer between described second nut 8 and connecting rod 2.
Seen from the above description, nut be arranged so that axle sleeve is stably fixed on connecting rod, nut lock washer then can prevent nut loosen.
Embodiment one of the present utility model is:
A kind of energy-regulating mechanism of helical-lobe compressor of the present embodiment is arranged at the afterbody of the fuselage 10 of helical-lobe compressor, comprise guiding valve (guiding valve is connected with the rotor 9 of helical-lobe compressor), connecting rod and oily piston, one end of described connecting rod is fixed in guiding valve, described oily piston sleeve to be located on connecting rod and to be positioned at the other end of connecting rod, also comprise axle sleeve and elastic component, described axle sleeve and elastic component are sheathed on connecting rod, described axle sleeve and connecting rod are rotatably connected, one end of described elastic component is connected with oily piston, and the other end of described elastic component is connected with axle sleeve.One end of described connecting rod is screwed in guiding valve, and described oily piston is fixed on the other end of connecting rod by nut.Also bearing is provided with between described axle sleeve and connecting rod.Described elastic component is spring.Described axle sleeve is provided with nut, and axle sleeve is fixed on connecting rod by described nut, is provided with nut lock washer between described nut and connecting rod.
In sum, the energy-regulating mechanism of helical-lobe compressor that the utility model provides have running vibration low, running precision is high, run advantage smoothly.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalents utilizing the utility model specification and accompanying drawing content to do; or be directly or indirectly used in relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. an energy-regulating mechanism of helical-lobe compressor, comprise guiding valve, connecting rod and oily piston, one end of described connecting rod is fixed in guiding valve, described oily piston sleeve to be located on connecting rod and to be positioned at the other end of connecting rod, it is characterized in that, also comprises axle sleeve and elastic component, described axle sleeve and elastic component are sheathed on connecting rod, described axle sleeve and connecting rod are rotatably connected, and one end of described elastic component is connected with oily piston, and the other end of described elastic component is connected with axle sleeve.
2. energy-regulating mechanism of helical-lobe compressor according to claim 1, is characterized in that, one end of described connecting rod is screwed in guiding valve, and described oily piston is fixed on the other end of connecting rod by the first nut.
3. energy-regulating mechanism of helical-lobe compressor according to claim 1, is characterized in that, is also provided with bearing between described axle sleeve and connecting rod.
4. energy-regulating mechanism of helical-lobe compressor according to claim 1, is characterized in that, described elastic component is spring.
5. energy-regulating mechanism of helical-lobe compressor according to claim 1, is characterized in that, described axle sleeve is provided with the second nut, and axle sleeve is fixed on connecting rod by described second nut, is provided with nut lock washer between described second nut and connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420814625.7U CN204419576U (en) | 2014-12-19 | 2014-12-19 | A kind of energy-regulating mechanism of helical-lobe compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420814625.7U CN204419576U (en) | 2014-12-19 | 2014-12-19 | A kind of energy-regulating mechanism of helical-lobe compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013465A (en) * | 2017-06-16 | 2017-08-04 | 珠海格力电器股份有限公司 | Helical-lobe compressor |
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- 2014-12-19 CN CN201420814625.7U patent/CN204419576U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013465A (en) * | 2017-06-16 | 2017-08-04 | 珠海格力电器股份有限公司 | Helical-lobe compressor |
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