CN204436797U - For compressor bearing unit and there is its compressor - Google Patents

Abstract

The utility model discloses a kind of bearing unit for compressor and there is its compressor, described bearing unit comprises: body, valve seat and exhaust valve plate, body comprises the hub portion and flange part that are connected successively vertically, flange part is formed with the mounting hole that the thickness direction along flange part runs through, valve seat and body process component respectively, valve seat is fixed in mounting hole, valve seat is formed with exhaust port, exhaust valve plate is located on valve seat, and at least part of of exhaust valve plate covers on exhaust port movably to open and close exhaust port.According to the bearing unit for compressor of the present utility model, due to the individually machine shaping of body and valve seat, thus effectively improve valve seat thinner time problem on deformation, and then the thickness of valve seat and the degree of depth of exhaust port can be reduced to the utmost, to reduce exhaust cross gap volume, improve the overall performance of compressor.

Description

For compressor bearing unit and there is its compressor

Technical field

The utility model relates to compressor apparatus field, especially relates to a kind of bearing unit for compressor and has its compressor.

Background technique

Bearing of compressor in correlation technique is formed with valve seat, when the thickness of valve seat is less, valve seat planes easily deforms, the precision of bearing is caused to ensure, when the thickness of valve seat is larger, the degree of depth of exhaust port is also comparatively large, causes the exhaust cross gap of compressing mechanism to increase, causes the hydraulic performance decline of compressor.

Model utility content

The utility model is intended at least to solve one of technical problem existed in prior art.For this reason, the utility model is to propose a kind of bearing unit for compressor, and the performance of described bearing unit is good.

The utility model also proposes a kind of compressor with above-mentioned bearing unit.

According to the bearing unit for compressor of the utility model first aspect, comprising: body, described body comprises the hub portion and flange part that are connected successively vertically, described flange part is formed with the mounting hole that the thickness direction along described flange part runs through; Valve seat, described valve seat and described body process component respectively, described valve seat is fixed in described mounting hole, and described valve seat is formed with exhaust port; And exhaust valve plate, described exhaust valve plate is located on described valve seat, and at least part of of described exhaust valve plate covers on described exhaust port movably to open and close described exhaust port.

According to the bearing unit for compressor of the present utility model, due to the individually machine shaping of body and valve seat, thus effectively improve valve seat thinner time problem on deformation, and then the thickness of valve seat and the degree of depth of exhaust port can be reduced to the utmost, to reduce exhaust cross gap volume, improve the overall performance of compressor.

Particularly, described valve seat comprises first and second being connected with each other, described first is formed with described exhaust port, and one end of described exhaust valve plate is connected with described second, and the other end of described exhaust valve plate covers on described exhaust port to open and close described exhaust port.

Alternatively, the external frame of described first is the combination of straight line, curve or straight line and curve.

Particularly, the width H of described second meets: 5mm≤H≤25mm.

Particularly, the axial depth t of described exhaust port meets: 1mm≤t≤4.5mm.

Further, described H and described t meets: 0.04≤t/H≤0.9.

Particularly, the rigidity of described valve seat is greater than the rigidity of described body, and the intensity of described valve seat is greater than the intensity of described body.

Alternatively, described valve seat welds or is interference fitted in described mounting hole.

According to the compressor of the utility model second aspect, comprising: cylinder assembly; With the bearing unit for compressor according to the utility model first aspect, described bearing unit is located on described cylinder assembly.

According to compressor of the present utility model, by arranging the bearing unit for compressor of above-mentioned first aspect, thus improve the overall performance of compressor.

Alternatively, described cylinder assembly is included in the multiple cylinders axially arranged, and is provided with dividing plate between two often adjacent described cylinders.

Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.

Accompanying drawing explanation

Fig. 1 is the generalized section of the compressor according to the utility model embodiment;

Fig. 2 is the plan view of the bearing unit according to the utility model embodiment;

Fig. 3 is the sectional drawing along A-A '-A line in Fig. 2;

Fig. 4 is the plan view of the body shown in Fig. 2;

Fig. 5 is the sectional drawing along B-B '-B line in Fig. 4;

Fig. 6 is the plan view of the valve seat shown in Fig. 2;

Fig. 7 is the plan view of the body according to another embodiment of the utility model;

Fig. 8 is the sectional drawing along C-C '-C line in Fig. 7;

Fig. 9 is the plan view of the valve seat according to another embodiment of the utility model.

Reference character:

100: compressor

1: housing; 11: upper shell; 12: middle casing; 13: lower shell body;

2: electric machine assembly; 21: stator; 22: rotor;

3: compressing mechanism; 31: cylinder; 321: main bearing; 322: supplementary bearing; 33: piston;

4: bent axle; 41: eccentric part;

S: bearing unit;

S1: body; S11: hub portion; S12: flange part; S121: mounting hole;

S2: valve seat; S21: the first; S211: exhaust port; S22: the second.

Embodiment

Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.

Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present utility model.Of the present utility model open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the utility model.In addition, the utility model can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the utility model provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.

Below with reference to Fig. 1-Fig. 9, the bearing unit S for compressor 100 according to the utility model first aspect embodiment is described.

As shown in Figures 2 and 3, according to the bearing unit S for compressor 100 of the utility model first aspect embodiment, comprising: body S1, valve seat S2 and exhaust valve plate (scheming not shown).

Particularly, as shown in Figure 4 and Figure 5, body S1 comprises the hub portion S11 and flange part S12 that are connected successively vertically, flange part S12 is formed with the mounting hole S121 that the thickness direction along flange part S12 runs through.As shown in Figure 4 and Figure 5, flange part S12 is formed as disc substantially, the side end face of hub portion S11 by flange part S12, the axis along flange part S12 extending towards the direction away from flange part S12, mounting hole S121 runs through flange part S12 along the axis of flange part S12, and mounting hole S121 and hub portion S11 is spaced apart.

Further, as shown in Fig. 2, Fig. 4 and Fig. 6, valve seat S2 and body S1 is process component respectively, and valve seat S2 is fixed in mounting hole S121.That is, valve seat S2 and body S1 is two independent parts, and valve seat S2 and body S1 individually machine shaping, as shown in Fig. 2, Fig. 4 and Fig. 6, shape, the size of the projection of valve seat S2 on reference level and the projection of mounting hole S121 on reference level are all substantially identical, thus valve seat S2 can be coordinated and be arranged in mounting hole S121.Here, it should be noted that, reference level is the plane perpendicular to body S1 central axis.

Alternatively, valve seat S2 can weld or be interference fitted in mounting hole S121, that is, valve seat S2 can by welding mode and mounting hole S121 integrally welded, the mode that valve seat S2 can also be crimped by interference and mounting hole S121 link into an integrated entity, thus be convenient to processing, to cut down finished cost further.

Thus, the material that the material that valve seat S2 selects can be selected from body S1 is different, and the rigidity of such as valve seat S2 can be greater than the rigidity of body S1, and the intensity of valve seat S2 can be greater than the intensity of body S1, thus the performance of valve seat S2 can be improved, and the holistic cost of bearing unit S can be reduced.And, due to body S1 and the independent shaping operation of valve seat S2, thus effectively can avoid the problem on deformation of valve seat S2, with the axial depth of the thickness and exhaust port S211 that reduce valve seat S2 to the utmost, and then reduction clearance volume, improve the overall performance of compressor 100.In addition, due under the prerequisite improving bearing unit S performance, the difficulty of processing of bearing unit S reduces, thus can improve manufacture efficiency, reduces manufacture cost.

Valve seat S2 is formed with exhaust port S211, as shown in Figure 2 and Figure 6, exhaust port S211 can run through valve seat S2 along the thickness direction of valve seat S2, and exhaust valve plate is located on valve seat S2, and at least part of of exhaust valve plate covers on exhaust port S211 movably to open and close exhaust port S211.That is, exhaust valve plate can cover on exhaust port S211 Integral movable, and to open or to close exhaust port S211, exhaust valve plate can also a part be connected on valve seat S2, another part covers on exhaust port S211 movably, to open or to close exhaust port S211.

According to the bearing unit S for compressor 100 of the utility model embodiment, due to body S1 and valve seat S2 individually machine shaping, thus on the basis of improving holistic cost hardly, effectively can improve the structural behaviour of valve seat S2, and effectively can improve the problem on deformation of valve seat S2, with the axial depth of the thickness and exhaust port S211 that reduce valve seat S2 to the utmost, and then reduction clearance volume, improve the overall performance of compressor 100.

In an embodiment of the present utility model, when a part for exhaust valve plate is connected on valve seat S2, when another part covers on exhaust port S211 movably, valve seat S2 can comprise first S21 and second S22 be connected with each other, and first S21 is formed with exhaust port S211.As shown in Fig. 6 and Fig. 9, the external frame of first S21 can be formed as the combination of straight line, curve or straight line and curve, such as first S21 can be formed as circular, oval or square etc., to improve exhaust performance, second S22 can be formed as rectangle batten, and second S22 extends from the edge of first S21 to the direction away from first S21 center, exhaust port S211 can run through first S21 along the thickness direction of first S21.

The shape of exhaust valve plate is substantially identical with the shape of valve seat S2, one end of exhaust valve plate can be connected with second S22, such as, one end of exhaust valve plate can be fixed together by the mode of riveting with second S22, the other end of exhaust valve plate covers on exhaust port S211 to open and close exhaust port S211, the other end of exhaust valve plate can cover on the exhaust port S211 on first S21, when flowing into the gas pressure in exhaust port S211 and being enough large, the other end of exhaust valve plate can be pushed open exhaust port S211 is opened by gas, thus gas can be passed to the side of the adjacent row air valve plate of exhaust port S211 from the side away from exhaust valve plate of exhaust port S211.

Further, valve seat S2 can also be provided with lift stopper (scheming not shown), one end of lift stopper is also fixed on second S22 of valve seat S2, to make exhaust valve plate between valve seat S2 and lift stopper, thus when exhaust valve plate is opened in the process of exhaust port S211, lift stopper can play spacing effect, the problem of being too out of shape to avoid exhaust valve plate.

Certainly, the utility model is not limited thereto, and the shape of valve seat S2 is not limited thereto, and the shape of valve seat S2 can also be arranged according to actual requirement, to meet actual requirement better.

Alternatively, as shown in Figure 6, the width H of second S22 meets: 5mm≤H≤25mm.Thus, the rigidity of valve seat S2 can be improved, and due to exhaust valve plate with the width of the width of one end that second S22 is connected and second S22 substantially equal, also can ensure between 5mm ~ 25mm, thus the rigidity of exhaust valve plate can be improved.

Alternatively, the axial depth t of exhaust port S211 meets: 1mm≤t≤4.5mm.As shown in Figures 2 and 3, the circumference of exhaust port S211 has annular relief, lug boss extends from a side end face of valve seat S2 towards the direction away from valve seat S2, thus the distance between the opposite side end face of the free end of lug boss and valve seat S2 is the degree of depth of exhaust port S211, like this, when the degree of depth of exhaust port S211 being limited between 1mm ~ 4.5mm, effectively can reduce clearance volume, improving the overall performance of compressor 100.Preferably, H and t meets: 0.04≤t/H≤0.9, thus, effectively can improve the overall performance of valve seat S2.

Referring to Fig. 1-Fig. 9, the concise and to the point processing method described according to the bearing unit S for compressor 100 of the utility model embodiment.

First by body S1 and and valve seat S2 individually machine shaping, wherein process in the process of body S1, need the mounting hole S121 remaining in advance installing valve seat S2 on the flange part S12 of body S1, and then by modes such as welding or interference crimping, valve seat S2 is fixed in mounting hole S121.Alternatively, body S1 can adopt conventional bearings materials processing to form, ductile iron material such as can be adopted to process, and valve seat S2 can adopt the better materials processing of intensity to form, such as carbon steel can be adopted, stainless steel, 45# steel etc. processes, like this, the strength of materials due to valve seat S2 is better than the material of body S1, thus under the prerequisite avoiding valve seat S2 plane deformation, that the thickness size of valve seat S2 can be processed is less, make the degree of depth of valve seat S2 upper air-vent S211 less, and then reduce exhaust cross gap loss, improve the overall performance of compressor 100.

According to the compressor 100 of the utility model second aspect embodiment, comprising: cylinder assembly and the bearing unit S for compressor 100 according to the above-mentioned first aspect embodiment of the utility model, bearing unit S is located on cylinder assembly.

As shown in Figure 1, according to the compressor 100 of the utility model embodiment, can comprise: housing 1, electric machine assembly 2, compressing mechanism 3 and bent axle 4.Wherein, compressor 100 can be vertical compressor or horizontal compressor, is only described for vertical compressor for compressor 100 below.

Particularly, as shown in Figure 1, housing 1 can comprise upper shell 11, middle casing 12 and lower shell body 13, upper shell 11 and lower shell body 13 are connected to top and the bottom of middle casing 12, seal and the cylindrical shell 1 of hollow jointly to limit with middle casing 12, preferably, middle casing 12 can adopt welding procedure to be integrally fixed structure respectively with upper shell 11 and lower shell body 13.Certainly, be understandable that, the structure of housing 1 is not limited thereto.

Further, with reference to Fig. 1, electric machine assembly 2 can be located at the top in housing 1, compressing mechanism 3 to be arranged in housing 1 and to be positioned at the below of electric machine assembly 2, wherein, electric machine assembly 2 can comprise stator 21 and rotor 22, stator 21 can be fixed together with the periphery wall of middle casing 12, rotor 22 can be located in stator 21 rotationally, the upper end of bent axle 4 can be fixed together with rotor 22 hot jacket, thus rotor 22 can driving crank 4 flexing axle 4 central axis rotate, compressing mechanism 3 is run through in the bottom of bent axle 4, thus can the refrigerant in compressing mechanism 3 be compressed in the process of bent axle 4 rotation.

With reference to Fig. 1, compressing mechanism 3 can comprise: cylinder assembly, main bearing 321 and supplementary bearing 322, piston 33 and slide plate, and two bearings are located at the axial two ends of cylinder assembly respectively.Wherein, when compressor 100 is single cylinder compressor, cylinder assembly only comprises a cylinder 31, and when compressor 100 is multicylinder compressor, cylinder assembly is included in multiple cylinders 31 that above-below direction is arranged, and is provided with dividing plate between two often adjacent cylinders 31.Due to, single cylinder compressor can be identical with the bearing structure in multicylinder compressor, thus be only described for single cylinder compressor for compressor 100 below.

Particularly, cylinder 31 has compression chamber.As shown in Figure 1, cylinder 31 is formed with the compression lumen pore run through along cylinder 31 thickness direction, main bearing 321 can be fixed on the top on cylinder 31 thickness direction, supplementary bearing 322 can be fixed on the bottom on cylinder 31 thickness direction, thus main bearing 321 and supplementary bearing 322 can limit compression chamber jointly with the compression lumen pore of cylinder 31, main bearing 321, supplementary bearing 322, among cylinder 31, the periphery wall of at least one can the inner circle wall of middle casing 121 be fixed together by the mode of spot welding, the lower end of bent axle 4 runs through main bearing 321 in turn, cylinder 31 and supplementary bearing 322.

Further, with reference to Fig. 1, piston 33 is located in compression chamber, and piston 33 can roll along the inwall of compression chamber.Wherein, the bottom of bent axle 4 has eccentric part 41, wherein eccentric part 41 is arranged in compression chamber, piston 33 is constructed generally as ring, and is set on eccentric part 41, when in the process that rotor 22 driving crank 4 rotates, bent axle 4 can drive eccentric part 41 and piston 33 together to rotate, thus piston 33 can be rolled along the inwall of compression chamber, when in the process that piston 33 rolls, the periphery wall of piston 33 linearly abuts with the inner circumferential sidewall of compression chamber all the time.

Cylinder 31 is formed with connecting port, and connecting port is communicated with compression chamber.As shown in Figure 1, connecting port can form by cylinder 31 side end face is axially recessed towards the direction of the axial centre plane of cylinder 31, and connecting port can be constructed generally as inclined cutout crescent shape mouth.

At least one in main bearing 321 and supplementary bearing 322 can be the bearing unit S according to the above-mentioned first aspect embodiment of the utility model, when main bearing 321 is the bearing unit S according to the above-mentioned first aspect embodiment of the utility model, connecting port is formed on the upper-end surface of cylinder 31, and connecting port is connected with the exhaust port S211 on main bearing 321, when supplementary bearing 322 is the bearing unit S according to the above-mentioned first aspect embodiment of the utility model, connecting port is formed on the lower end surface of cylinder 31, and connecting port is connected with the exhaust port S211 on supplementary bearing 322, when main bearing 321 and supplementary bearing 322 are the bearing unit S according to the above-mentioned first aspect embodiment of the utility model, connecting port is two and is respectively formed on the upper and lower end face in upper-end surface of cylinder 31, and the connecting port be located on cylinder 31 upper-end surface is connected with the exhaust port S211 on main bearing 321, the connecting port be located on cylinder 31 lower end surface is connected with the exhaust port S211 on supplementary bearing 322.Illustrate in Fig. 1 that main bearing 321 is the technological scheme of the bearing unit S according to the above-mentioned first aspect embodiment of the utility model.

According to the compressor 100 of the utility model embodiment, by arranging the bearing unit S for compressor 100 of above-mentioned first aspect embodiment, thus improve the overall performance of compressor 100.

In description of the present utility model, it will be appreciated that, term " " center ", " length ", " width ", " thickness ", " on ", D score, " vertically ", " level ", " top ", " end ", " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.

In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.

In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.

In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.

Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.

Claims (10)

1. for a bearing unit for compressor, it is characterized in that, comprising:

Body, described body comprises the hub portion and flange part that are connected successively vertically, described flange part is formed with the mounting hole that the thickness direction along described flange part runs through;

Valve seat, described valve seat and described body process component respectively, described valve seat is fixed in described mounting hole, and described valve seat is formed with exhaust port; And

Exhaust valve plate, described exhaust valve plate is located on described valve seat, and at least part of of described exhaust valve plate covers on described exhaust port movably to open and close described exhaust port.

2. the bearing unit for compressor according to claim 1, it is characterized in that, described valve seat comprises first and second being connected with each other, described first is formed with described exhaust port, one end of described exhaust valve plate is connected with described second, and the other end of described exhaust valve plate covers on described exhaust port to open and close described exhaust port.

3. the bearing unit for compressor according to claim 2, is characterized in that, the external frame of described first is the combination of straight line, curve or straight line and curve.

4. the bearing unit for compressor according to claim 2, is characterized in that, the width H of described second meets: 5mm≤H≤25mm.

5. the bearing unit for compressor according to claim 4, is characterized in that, the axial depth t of described exhaust port meets: 1mm≤t≤4.5mm.

6. the bearing unit for compressor according to claim 5, is characterized in that, described H and described t meets: 0.04≤t/H≤0.9.

7. the bearing unit for compressor according to claim 1, is characterized in that, the rigidity of described valve seat is greater than the rigidity of described body, and the intensity of described valve seat is greater than the intensity of described body.

8. the bearing unit for compressor according to any one of claim 1-7, is characterized in that, described valve seat welds or is interference fitted in described mounting hole.

9. a compressor, is characterized in that, comprising:

Cylinder assembly; With

The bearing unit for compressor according to any one of claim 1-8, described bearing unit is located on described cylinder assembly.

10. compressor according to claim 9, is characterized in that, described cylinder assembly is included in the multiple cylinders axially arranged, and is provided with dividing plate between two often adjacent described cylinders.