CN105715679B - A kind of helical-lobe compressor and its exhaust bearing block - Google Patents

A kind of helical-lobe compressor and its exhaust bearing block Download PDF

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Publication number
CN105715679B
CN105715679B CN201610059724.2A CN201610059724A CN105715679B CN 105715679 B CN105715679 B CN 105715679B CN 201610059724 A CN201610059724 A CN 201610059724A CN 105715679 B CN105715679 B CN 105715679B
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CN
China
Prior art keywords
cavity
choked flow
muscle
bearing block
flow muscle
Prior art date
Application number
CN201610059724.2A
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Chinese (zh)
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CN105715679A (en
Inventor
杨侨明
张天翼
李日华
陈文卿
赵兆瑞
武晓昆
王磊
邢子文
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珠海格力电器股份有限公司
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Priority to CN201610059724.2A priority Critical patent/CN105715679B/en
Publication of CN105715679A publication Critical patent/CN105715679A/en
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Publication of CN105715679B publication Critical patent/CN105715679B/en

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Abstract

The invention discloses a kind of exhaust bearing block of compressor, including inwall, outer wall and cavity between the two, and air inlet and exhaust outlet connect with cavity, in addition, also including being arranged in cavity, for the choked flow muscle for hindering gas to flow.By set choked flow muscle can mitigation of gases flow speed, so as to reach reduce noise purpose.In addition, the abrupt change of cross-section of cavity can form silencing cavity, so as to reach the purpose for reducing noise.The invention also discloses a kind of helical-lobe compressor with above-mentioned exhaust bearing block.

Description

A kind of helical-lobe compressor and its exhaust bearing block

Technical field

The present invention relates to technical field of refrigeration equipment, is to be related to a kind of helical-lobe compressor and its exhaust shaft in particular Bearing.

Background technology

Traditional helical-lobe compressor generally includes air inlet, motor cavity, automatically controlled chamber, rotor chamber, discharge chamber and guiding valve piston Chamber.During work, gas sucks from air inlet, subsequently into rotor chamber, passes through the rotation of male rotor and female rotor in rotor chamber Gas is compressed, then discharged by discharge chamber, so as to complete air-breathing, compression and the process of exhaust.

The exhaust bearing block of current helical-lobe compressor has male rotor bearing bore, female rotor bearing bore, exhaust outlet, air inlet Mouth and oil cylinder chamber, in addition, the housing of the exhaust bearing block is formed by two layers of walls, and form cavity between two layers of walls, specifically, The cavity that male rotor bearing bore, the outer wall of female rotor bearing bore and oil cylinder chamber three and bearing block housing exterior walls are formed.Work When, gases at high pressure enter in the cavity of exhaust bearing block from air inlet, and are finally pooled to exhaust outlet discharge.Due to gases at high pressure Gas is violent in flow process, when flowing through the cavity of double wall formation, can produce the exhaust bearing block larger Noise.

Therefore, the noise of exhaust bearing block how is reduced, is the current technical issues that need to address of those skilled in the art.

The content of the invention

In view of this, the invention provides one kind to be vented bearing block, reduces the noise of exhaust bearing block.The present invention also provides A kind of helical-lobe compressor with above-mentioned exhaust bearing block.

To achieve the above object, the present invention provides following technical scheme:

A kind of exhaust bearing block of compressor, including inwall, outer wall and cavity between the two, the outer wall have air inlet Mouth and exhaust outlet, and the air inlet and exhaust outlet connect with the cavity, it is characterised in that also include being arranged on the sky Intracavitary, for the choked flow muscle for hindering gas to flow.

Preferably, in above-mentioned exhaust bearing block, the cross section of the cavity is waist type ring cavity, and the cavity is close Being vented the horizontal segment of the oil cylinder of bearing block has outstanding raised chamber, and the cross section of the cavity is perpendicular to exhaust bearing block Axis.

Preferably, in above-mentioned exhaust bearing block, the choked flow muscle includes the first choked flow muscle being arranged in the cavity, The first choked flow muscle connection inwall and the outer wall, and axis direction of the first choked flow muscle along the cavity Length is less than the length of the cavity axis direction.

Preferably, in above-mentioned exhaust bearing block, the choked flow muscle also includes the second choked flow being arranged in the cavity Muscle, the second choked flow muscle connect the inwall and the outer wall, and axis side of the second choked flow muscle along the cavity To length be less than the cavity axis direction length..

Preferably, in above-mentioned exhaust bearing block, the first choked flow muscle and the second choked flow muscle are distributed in the sky Both ends of the chamber along the horizontal segment direction.

Preferably, in above-mentioned exhaust bearing block, the first choked flow muscle and the second choked flow muscle are relative to the sky The horizontal segment of chamber is in tilted layout.

Preferably, in above-mentioned exhaust bearing block, the incline direction phase of the first choked flow muscle and the second choked flow muscle Instead, and angle of inclination is 30~80 °.

Preferably, in above-mentioned exhaust bearing block, the choked flow muscle also includes the 3rd choked flow muscle, and the 3rd choked flow muscle is set Put between the first choked flow muscle and the second choked flow muscle, and connect the inwall and the outer wall, and the described 3rd The length of axis direction of the choked flow muscle along the cavity is less than the length of the cavity axis direction.

Preferably, in above-mentioned exhaust bearing block, the choked flow muscle also includes the 4th choked flow muscle, and the 4th choked flow muscle is set Put in the one end of the cavity away from the exhaust outlet, the 4th choked flow muscle connects the inwall and the outer wall, and institute The length for stating axis direction of the 4th choked flow muscle along the cavity is less than the length of the cavity axis direction.

A kind of helical-lobe compressor, including exhaust bearing block, wherein, the exhaust bearing block is described in any one as described above It is vented bearing block.

Understood via above-mentioned technical scheme, the invention discloses a kind of exhaust bearing block of compressor, including it is inwall, outer Wall and cavity between the two, and air inlet and exhaust outlet connect with cavity, in addition, also including being arranged in cavity, use In the choked flow muscle for hindering gas flowing.By set choked flow muscle can the speed that flows of mitigation of gases, reduce noise so as to reach Purpose.In addition, the abrupt change of cross-section of cavity can form silencing cavity, so as to reach the purpose for reducing noise.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis The accompanying drawing of offer obtains other accompanying drawings.

Fig. 1 is the structural representation of exhaust bearing block provided in an embodiment of the present invention;

Fig. 2 is the front view of exhaust bearing block provided in an embodiment of the present invention;

Fig. 3 is the rearview of exhaust bearing block provided in an embodiment of the present invention;

Fig. 4 is the side view of exhaust bearing block provided in an embodiment of the present invention;

Fig. 5 is AA direction schematic diagrams in Fig. 2;

Fig. 6 is BB direction schematic diagrams in Fig. 2;

Fig. 7 is CC direction schematic diagrams in Fig. 2.

Embodiment

The core of the present invention is to provide a kind of exhaust bearing block, reduces the noise of exhaust bearing block.Another core of the present invention The heart is to provide a kind of helical-lobe compressor with above-mentioned exhaust bearing block.

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.

As shown in Fig. 1-Fig. 7, the invention discloses a kind of exhaust bearing block of compressor, including inwall, outer wall and both Between cavity 5, and air inlet 6 and exhaust outlet 4 connect with cavity 5, in addition, also including being arranged in cavity 5, for hindering The choked flow muscle for hindering gas to flow.By set choked flow muscle can mitigation of gases flow speed, so as to reach reduce noise purpose. In addition, the abrupt change of cross-section of cavity 5 can form silencing cavity, so as to reach the purpose for reducing noise.

In specific embodiment, the cross section of cavity 5 is arranged to waist type ring cavity, specifically, the cavity 5 is close to row The horizontal segment of the oil cylinder 3 of gas bearing block has outstanding raised chamber, specifically, the horizontal segment of the raised chamber on cavity 5 Perpendicular bisector it is symmetrical, and the cross section of cavity 5 is perpendicular to the axis of exhaust bearing block, i.e. inner and outer wall in the application is equal For drum type structure, and above-mentioned cavity 5 is formed therebetween.Because exhaust bearing block disclosed herein has oil cylinder 3, And oil cylinder 3, male rotor bearing bore 1 and female rotor bearing bore 2 are arranged in interior pars intramuralis in triangular form, in order to ensure oil cylinder 3 Installing space, therefore, inner and outer wall are outwardly convex at oil cylinder, to increase the size in the space within inwall.Specifically, The raised chamber is symmetrical on the perpendicular bisector of the horizontal segment of cavity 5, it is equipped with for the position and the installation position of oil cylinder 3 of raised chamber Close, therefore, size and particular location for raised chamber can be set according to different needs, and in protection domain.

The further choked flow muscle includes the first choked flow muscle 7 being arranged in cavity, and in the first choked flow muscle 7 connects Wall and outer wall, in order to realize the flowing of gas, the length of axis direction of the first choked flow muscle 7 along cavity 5 is less than cavity axle The length in line direction, so that gas can pass through from the side of the first choked flow muscle.Can be according to not for the size of the first choked flow muscle 7 Same needs are selected, and are not specifically limited herein.Set the effect of choked flow muscle not only can cause to hinder to the flowing of gas, And the flow velocity of mitigation of gases, reduce the noise of gas, additionally it is possible to the intensity of increase exhaust bearing block.

But the preferable choked flow muscle also includes the second choked flow muscle 8, and the second choked flow muscle 8 connection inner and outer wall, is The flowing of gas can be realized, the length of axis direction of the second choked flow muscle 8 along cavity 5 is less than the length of cavity axis direction Degree, so that gas can pass through from the side of the second choked flow muscle 8.Can be according to different needs for the size of the second choked flow muscle 8 Selected, be not specifically limited herein.There is a certain distance between first choked flow muscle 7 and the second choked flow muscle 8, can so make Cavity is formed between first choked flow muscle 7 and the second choked flow muscle 8, is mutated the cross-sectional sizes of cavity, and reaches the purpose of noise reduction.

In one embodiment, the first choked flow muscle 7 and the second choked flow muscle 8 are distributed in cavity 5 along horizontal segment direction Both ends, the particular location that a kind of first choked flow muscle 7 is distributed are merely provided herein, still, the application is not limited in such a peace Holding position, as long as can realize the installation site of the choked flow muscle of the effect hindered air-flow in protection domain.

In further embodiment, by the first choked flow muscle 7 and the second choked flow muscle 8 both with respect in the cross section of cavity 5 The perpendicular bisector of horizontal segment is in tilted layout.Because the cross section of cavity 5 is waist type annular chamber, that is, form the outer wall of the waist type annular chamber Cross section with inwall is also waist type structure, may when the first choked flow muscle 7 and the second choked flow muscle 8 are arranged on inwall On arcwall face, it is in tilted layout accordingly, with respect to unprecedented short axle.In addition, in order to carry out water conservancy diversion to gas, also can be by first The choked flow muscle 8 of choked flow muscle 7 and second is in tilted layout, so that the flowing of gas is more steady.

Specifically, by the incline direction opposed of the first choked flow muscle 7 and the second choked flow muscle 8, specifically, by the first choked flow The choked flow muscle 8 of muscle 7 and second is in tilted layout both with respect to the perpendicular bisector of horizontal segment in the cross section of cavity 5, and angle of inclination is 30~80 °.Incline direction opposed, the first choked flow muscle 7 and the second choked flow muscle 8 can be arranged in the arc of two ends of cavity In shape section.It can be defined according to different needs for the angle of inclination of the first choked flow muscle 7 and the second choked flow muscle 8, and existed In protection domain.

On the basis of above-mentioned technical proposal, choked flow muscle disclosed herein also includes the 3rd choked flow muscle 9, specifically, 3rd choked flow muscle 9 is arranged between the first choked flow muscle 7 and the second choked flow muscle 8, and connects inner and outer wall, in order to logical Gas is crossed, length of the 3rd choked flow muscle 9 along the axis direction of cavity is less than the length of the cavity axis direction, specifically, 3rd choked flow muscle 9 is arranged on the surface of air inlet 6.Set the 3rd choked flow muscle 9 can further mitigation of gases flowing speed, Further reduce noise.

In further embodiment, the choked flow muscle also includes the 4th choked flow muscle 10, and the 4th choked flow muscle 10 is arranged on The one end of cavity 5 away from exhaust outlet 4, and the 4th choked flow muscle 10 connection inner and outer wall, in order to pass through gas, the 4th resistance The length that length of the muscle 10 along the axis direction of cavity is less than the cavity axis direction is flowed, specifically, the 4th choked flow muscle 10 is set Put in the left side of female rotor bearing bore 2.The application provide only a kind of arrangement and number of specific choked flow muscle, but Under the core of the application, as long as setting the choked flow muscle that can hinder air-flow in cavity in protection domain, i.e., do not limit individual Number and position.

By above-mentioned set-up mode, exhaust bearing block efficiency disclosed herein reduces air-flow 750Hz and 1000Hz frequency Rate section noise.

In addition, disclosed herein as well is a kind of helical-lobe compressor, including exhaust bearing block, the exhaust bearing block is as described above Exhaust bearing block disclosed in embodiment, therefore, the helical-lobe compressor with the exhaust bearing block is also with above-mentioned all technologies Effect, this is no longer going to repeat them.

Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other The difference of embodiment, between each embodiment identical similar portion mutually referring to.

The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention. A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one The most wide scope caused.

Claims (10)

1. a kind of exhaust bearing block of compressor, including inwall, outer wall and cavity (5) between the two, the outer wall have into Gas port (6) and exhaust outlet (4), and the air inlet (6) and exhaust outlet (4) connect with the cavity (5), it is characterised in that Also include being arranged in the cavity (5), for the choked flow muscle for hindering gas to flow.
2. exhaust bearing block according to claim 1, it is characterised in that the cross section of the cavity (5) is waist type ring shape Cavity, the cavity (5) have outstanding raised chamber, the cavity close to the horizontal segment of the oil cylinder (3) of exhaust bearing block (5) axis of the cross section perpendicular to exhaust bearing block.
3. exhaust bearing block according to claim 2, it is characterised in that the choked flow muscle includes being arranged on the cavity (5) the first choked flow muscle (7) in, the first choked flow muscle (7) connect the inwall and the outer wall, and first choked flow The length of axis direction of the muscle (7) along the cavity (5) is less than the length of the cavity (5) axis direction.
4. exhaust bearing block according to claim 3, it is characterised in that the choked flow muscle also includes being arranged on the cavity (5) the second choked flow muscle (8) in, the second choked flow muscle (8) connect the inwall and the outer wall, and second choked flow The length of axis direction of the muscle (8) along the cavity (5) is less than the length of the cavity (5) axis direction.
5. exhaust bearing block according to claim 4, it is characterised in that the first choked flow muscle (7) and second resistance Stream muscle (8) is distributed in both ends of the cavity (5) along the horizontal segment direction.
6. exhaust bearing block according to claim 5, it is characterised in that the first choked flow muscle (7) and second resistance Stream muscle (8) is in tilted layout relative to the horizontal segment of the cavity (5).
7. exhaust bearing block according to claim 6, it is characterised in that the first choked flow muscle (7) and second resistance The incline direction of muscle (8) is flowed on the contrary, and angle of inclination is 30~80 °.
8. exhaust bearing block according to claim 4, it is characterised in that the choked flow muscle also includes the 3rd choked flow muscle (9), The 3rd choked flow muscle (9) is arranged between the first choked flow muscle (7) and the second choked flow muscle (8), and is connected in described Wall and the outer wall, and the length of axis direction of the 3rd choked flow muscle (9) along the cavity (5) is less than the cavity (5) length of axis direction.
9. exhaust bearing block according to claim 8, it is characterised in that the choked flow muscle also includes the 4th choked flow muscle (10), the 4th choked flow muscle (10) is arranged on the one end of the cavity (5) away from the exhaust outlet (4), the 4th choked flow Muscle (10) the connection inwall and the outer wall, and axis direction of the 4th choked flow muscle (10) along the cavity (5) Length is less than the length of the cavity (5) axis direction.
10. a kind of helical-lobe compressor, including exhaust bearing block, it is characterised in that the exhaust bearing block is such as claim 1-9 Exhaust bearing block described in any one.
CN201610059724.2A 2016-01-28 2016-01-28 A kind of helical-lobe compressor and its exhaust bearing block CN105715679B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610059724.2A CN105715679B (en) 2016-01-28 2016-01-28 A kind of helical-lobe compressor and its exhaust bearing block

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Application Number Priority Date Filing Date Title
CN201610059724.2A CN105715679B (en) 2016-01-28 2016-01-28 A kind of helical-lobe compressor and its exhaust bearing block

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CN105715679B true CN105715679B (en) 2018-01-30

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2535587A1 (en) * 2010-02-10 2012-12-19 Mitsubishi Heavy Industries, Ltd. Inverter-integrated electric compressor
CN203641011U (en) * 2013-11-22 2014-06-11 珠海格力电器股份有限公司 Screw compressor machine body structure and screw compressor
CN104612808A (en) * 2015-02-09 2015-05-13 安徽华菱汽车有限公司 Engine and cooling device assembly
CN105041648A (en) * 2015-09-15 2015-11-11 珠海格力电器股份有限公司 Screw compressor and machine body thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130029959A (en) * 2011-09-16 2013-03-26 한국델파이주식회사 Rotary vane compressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2535587A1 (en) * 2010-02-10 2012-12-19 Mitsubishi Heavy Industries, Ltd. Inverter-integrated electric compressor
CN203641011U (en) * 2013-11-22 2014-06-11 珠海格力电器股份有限公司 Screw compressor machine body structure and screw compressor
CN104612808A (en) * 2015-02-09 2015-05-13 安徽华菱汽车有限公司 Engine and cooling device assembly
CN105041648A (en) * 2015-09-15 2015-11-11 珠海格力电器股份有限公司 Screw compressor and machine body thereof

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