CN204783546U - Compressor - Google Patents

Abstract

The utility model discloses a compressor, include: a housing. Bearing assembly, bearing assembly establishes in the casing, the bent axle, the one end of bent axle stretches into bearing assembly and edge the rotation center of casing is rotatable, be equipped with on the bent axle and only support bearing assembly's thrust portion, bearing assembly be equipped with with corresponding supporting part is put at the thrust position, the thrust pad, the thrust pad is established thrust portion with between the supporting part, thrust portion only supports the thrust pad, the thrust pad is at least an in rubber pad, plastics pad, asbestos pad, graphite pad or the fibre pad. According to the utility model discloses a compressor can absorb the energy of compressor's vibration ripples, alleviates the striking between thrust portion and the supporting part, and then improves compressor's the different sound of thrust, improves compressor's performance, this compressor's simple structure, with low costs, the noise is lower, comprehensive properties is strong.

Description

Compressor

Technical field

The utility model relates to Compressor Technology field, more specifically, relates to a kind of compressor.

Background technique

In correlation technique, the bent axle of compressor and rotor, owing to being subject to the effect of the various downward power such as gravity, downward electromagnet pull, finally can act on the lower thrust surface of bent axle.But, lower thrust surface is eccentric design, and Point of Strength is not in center of gravity, and turning radius is larger, and be sliding friction, lubrication effect is also undesirable, thus causes the frictional work of consumption more, and compressor performance declines, and due to the shock between the push stopping part of bent axle and bearing, when there is the thrust surface processing problem such as bad, easily there is the different sound of thrust, larger to noise effect.

Model utility content

The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model proposes a kind of compressor, the structure of this compressor is simple, noise is low.

According to compressor of the present utility model, comprising: housing; Bearing unit, described bearing unit is located in described housing; Bent axle, one end of described bent axle stretches into described bearing unit and rotating center along described housing is rotatable, and described bent axle is provided with the push stopping part of only supporting described bearing unit, and described bearing unit is provided with the supporting portion corresponding with described push stopping part position; Thrust pad, described thrust pad is located between described push stopping part and described supporting portion, and described push stopping part only supports described thrust pad, and described thrust pad is at least one in rubber pad, plastic mattress, asbestos packing, graphite pads or fiber cushion.

According to compressor of the present utility model, stop to the push stopping part of bearing unit, in the bearing unit setting supporting portion corresponding with push stopping part position by arranging on the bent axle of compressor, and thrust pad is set between push stopping part and supporting portion, the energy of the vibration wave of compressor can be absorbed, alleviate the shock between push stopping part and supporting portion, and then the different sound of the thrust improving compressor, improve the performance of compressor, the structure of this compressor is simple, cost is low, noise is lower, combination property is strong.

In addition, according to compressor of the present utility model, following additional technical characteristics can also be had:

According to an embodiment of the present utility model, described bent axle comprises main shaft, countershaft and eccentric shaft, the two ends of described eccentric shaft are connected with described countershaft with described main shaft respectively, described bearing unit comprises main bearing, cylinder and supplementary bearing in the vertical direction successively, described main bearing is set on described main shaft, described eccentric shaft is positioned at described cylinder, and described supplementary bearing is set on described countershaft.

According to an embodiment of the present utility model, the lower end of described supplementary bearing is provided with supporting base, described supporting base has the cavity of open upper end, the lower end of described countershaft is provided with strut, be provided with described thrust pad between the lower end surface of described strut and the diapire of described supporting base, described strut only supports described thrust pad.

According to an embodiment of the present utility model, between the upper-end surface of described supporting base and the lower end of described supplementary bearing, be provided with described thrust pad.

According to an embodiment of the present utility model, described strut is set on described countershaft, and the lower end surface of described strut is formed as spherical.

According to an embodiment of the present utility model, described thrust pad is threaded with described supporting base, bonding or weld.

According to an embodiment of the present utility model, the lower end of described supplementary bearing is provided with the cutting ferrule of the lower ending opening of closed described supplementary bearing, the lower end surface of described countershaft is formed as described push stopping part, the upper-end surface of described cutting ferrule is formed as described supporting portion, and described thrust pad is located between the lower end of described supplementary bearing and described cutting ferrule.

According to an embodiment of the present utility model, described supplementary bearing is provided with baffler, is provided with thrust pad between the lower end surface of described baffler and described supplementary bearing, and described countershaft only supports described thrust pad.

According to an embodiment of the present utility model, the thickness of described thrust pad is H, 0.1mm≤H≤5mm.

According to an embodiment of the present utility model, the Young's modulus of the material of described thrust pad is G, G≤100GPa.

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 structural representation of the compressor according to the utility model embodiment;

Fig. 2 is the structural representation of the compressor according to another embodiment of the utility model;

Fig. 3 is the structural representation of the compressor according to another embodiment of the utility model;

Fig. 4 is the structural representation of the compressor according to another embodiment of the utility model.

Reference character:

Compressor 100 (100a, 100b, 100c, 100d);

Housing 10; Receiving cavity 11;

Bearing unit 20; Supporting portion 21; Main bearing 22; Cylinder 23; Supplementary bearing 24; Supporting base 241; Cavity 2411; Cutting ferrule 242;

Bent axle 30; Push stopping part 31; Main shaft 32; Countershaft 33; Strut 331; Center hole 332; Eccentric shaft 34; Baffler 243;

Thrust pad 40; Rotor 50; Equilibrium block 51.

Embodiment

Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings.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.

The compressor 100 according to the utility model embodiment is specifically described below in conjunction with accompanying drawing 1 to Fig. 4.

Housing 10, bearing unit 20, bent axle 30 and thrust pad 40 is comprised according to the compressor 100 of the utility model embodiment.Specifically, bearing unit 20 is located in housing 10, one end of bent axle 30 stretches into bearing unit 20 and rotating center along housing 10 is rotatable, bent axle 30 is provided with the push stopping part 31 of only supporting bearing unit 20, bearing unit 20 is provided with the supporting portion 21 corresponding with push stopping part 31 position, thrust pad 40 is located between push stopping part 31 and supporting portion 21, and push stopping part 31 only supports thrust pad 40, and thrust pad 40 is at least one in rubber pad, plastic mattress, asbestos packing, graphite pads or fiber cushion.

Wherein, compressor 100 also comprises rotor 50, and that is, compressor 100 forms primarily of housing 10, bearing unit 20, rotor 50, bent axle 30 and thrust pad 40.Receiving cavity 11 is limited with in housing 10, bearing unit 20, rotor 50 and bent axle 30 are all located in receiving cavity 11, particularly, bent axle 30 extends along the axis of housing 10 and is located in receiving cavity 11 rotationally, rotor 50 and bearing unit 20 are all set on bent axle 30, and rotor 50 and the axially spaced layout of bearing unit 20 along bent axle 30, when compressor 100 in the course of the work, the center axis thereof of rotor 50 and bent axle 30 flexing axle 30, and bearing unit 20 is static relative to housing 10, namely bearing unit 20 is fixedly located in housing 10.

The bent axle 30 of compressor 100 is provided with push stopping part 31, and bearing unit 20 is provided with supporting portion 21, after compressor 100 has assembled, push stopping part 31 is only against on supporting portion 21 to make supporting portion 21 can bear the gravity of bent axle 30, rotor 50 etc. and the effect of other power, further, be provided with thrust pad 40 between push stopping part 31 and supporting portion 21, the shock of compressor 100 push stopping part 31 pairs of supporting portions 21 in the course of the work can be alleviated, and then the different sound of the thrust improving compressor 100.Wherein, thrust pad 40 both can be connected with the surface of push stopping part 31 towards supporting portion 21, also can be connected with the surface of supporting portion 21 towards push stopping part 31, thus alleviated the shock between push stopping part 31 and supporting portion 21.

Alternatively, thrust pad 40 can be at least one in rubber layer, plastic layer, asbestos layer, graphite layer or layer of fibers.Such as, in an example of the present utility model, thrust pad 40 is for having certain thickness rubber pad, in the course of the work, because rubber material has elasticity, compressor 100 in the course of the work for such compressor 100, rubber pad can absorb vibration wave, shock between supporting portion 21 and push stopping part 31 is played to the effect of buffering, thus can effectively eliminate or reduce the different sound of thrust of compressor 100, improve the performance of compressor 100.Certainly, thrust pad 40 also can be made by multiple composite.

Such as, in other concrete examples of the present utility model, thrust pad 40 is primarily of having certain thickness rubber layer and asbestos layer is bonded, thus, greatly can absorb the energy of compressor 100 vibration wave in the course of the work, alleviate the shock between push stopping part 31 and supporting portion 21, and then the different sound of the thrust improving compressor 100, improve the performance of compressor 100.

Thus, according to the compressor 100 of the utility model embodiment, by arranging the push stopping part 31 of only supporting bearing unit 20 on the bent axle 30 of compressor 100, at bearing unit 20, the supporting portion 21 corresponding with push stopping part 31 position is set, and thrust pad 40 is set between push stopping part 31 and supporting portion 21, the energy of the vibration wave of compressor 100 can be absorbed, alleviate the shock between push stopping part 31 and supporting portion 21, and then the different sound of the thrust improving compressor 100, improve the performance of compressor 100, the structure of this compressor 100 is simple, cost is low, noise is lower, combination property is strong.

Further, bent axle 30 comprises main shaft 32, countershaft 33 and eccentric shaft 34, the two ends of eccentric shaft 34 are connected with countershaft 33 with main shaft 32 respectively, bearing unit 20 comprises main bearing 22, cylinder 23 and supplementary bearing 24 in the vertical direction successively, main bearing 22 is set on main shaft 32, eccentric shaft 34 is positioned at cylinder 23, and supplementary bearing 24 is set on countershaft 33.

Particularly, as shown in Figures 1 to 4, the bent axle 30 of compressor 100 is primarily of main shaft 32, countershaft 33 and eccentric shaft 34 form, bearing unit 20 is primarily of main bearing 22, cylinder 23 and supplementary bearing 24 form, wherein, bent axle 30 vertically (above-below direction as shown in Figure 1) is arranged, the two ends of the eccentric shaft 34 of bent axle 30 are connected with the upper end of countershaft 33 with the lower end of main shaft 32 respectively, main bearing 22, cylinder 23 and supplementary bearing 24 are arranged along the vertical direction, wherein eccentric shaft 34 is located in cylinder 23, and main bearing 22 be set in bent axle 30 main shaft 32 on and be positioned at the top of cylinder 23, the countershaft 33 that supplementary bearing 24 is set in bent axle 30 is positioned at the below of cylinder 23, arranged spaced apart along the vertical direction with main bearing 22 on the free end that rotor 50 is set in main shaft 32.

Wherein, the thickness of thrust pad 40 is H, 0.1mm≤H≤5mm.Such as, the thickness of thrust pad 40 can be set to 0.1mm, 2mm or 5mm.And the Young's modulus of the material of thrust pad 40 is G, G≤100GPa.Because the elastic modulus G of the making material of thrust pad 40 is less, compressor 100 in the course of the work, supporting portion 21 and push stopping part 31 are clashed into mutually, the elastic strain of now thrust pad 40 generation is larger, the effect of buffering so just can be played to the shock of push stopping part 31 and supporting portion 21, and then the different sound of the thrust improving compressor 100, improve the performance of compressor 100.

In embodiments more of the present utility model, the lower end of supplementary bearing 24 is provided with supporting base 241, supporting base 241 has the cavity 2411 of open upper end, the lower end of countershaft 33 is provided with strut 331, be provided with thrust pad 40 between the lower end surface of strut 331 and the diapire of supporting base 241, strut 331 only supports thrust pad 40.

Particularly, as shown in Figure 1, the bent axle 30 of compressor 100a is primarily of main shaft 32, countershaft 33 and eccentric shaft 34 form, bearing unit 20 is primarily of main bearing 22, cylinder 23 and supplementary bearing 24 form, wherein, the lower end of supplementary bearing 24 is provided with supporting base 241, supporting base 241 limits cavity 2411 with the lower end surface of supplementary bearing 24, and the free end of countershaft 33 is provided with the axial strut 331 to downward-extension along countershaft 33, this strut 331 stretches in cavity 2411, further, thrust pad 40 is provided with in the cavity 2411 of supporting base 241, this thrust pad 40 is connected with the diapire of supporting base 241, one end that strut 331 stretches into cavity 2411 only bears bent axle 30 to thrust pad 40 to make supporting base 241, the gravity of rotor 50 and miscellaneous part and downward magnetic pull etc., that is, in the present embodiment, supporting base 30 forms supporting portion 21 towards the one side of strut 331, and the lower end surface of strut 331 forms push stopping part 31.

Alternatively, strut 331 is set on countershaft 33, and the lower end surface of strut 331 is formed as spherical.Particularly, the axle head of the countershaft 33 of bent axle 30 has center hole 332, strut 331 is plugged in the center hole 332 of countershaft 33, and realize being fixedly connected with of strut 331 and bent axle 30 by welding, the mode such as bond or be threaded, and one end that strut 331 stretches into cavity 2411 can be provided with thrust ball, wherein thrust ball can realize being fastenedly connected by the mode of welding, bonding and strut 331.Thus, the lower end surface of strut 331 is only against the upper-end surface of thrust pad 40, can alleviate the shock between strut 331 and supporting base 241, and then the different sound of the thrust improving compressor 100a, improves the performance of compressor 100a.

Further, as shown in Figure 2, thrust pad 40 is provided with between the upper-end surface of supporting base 241 and the lower end of supplementary bearing 24.That is, in the present embodiment, between the lower end of strut 331 and the diapire of supporting base 241, thrust pad 40 is equipped with between the lower end surface of supporting base 241 and supplementary bearing 24, when compressor 100b in the course of the work, bent axle 30 is owing to being subject to gravity, the effect of downward magnetic pull etc., play can be there is in the axis (above-below direction as shown in Figure 2) of housing 10, in the process, the thrust pad 40 on supporting base 241 only can be supported in the lower end of strut 331, or the thrust pad 40 on supporting base 241 only can be supported in the lower end surface of supplementary bearing 24, both supporting base 241 pairs of bent axles 30 had been made, bearing unit 20 plays the effect of support, thrust pad 40 can be made again to alleviate strut 331 and supporting base 241 or the shock between supplementary bearing 24 and supporting base 241, and then the different sound of the thrust improving compressor 100b, improve the performance of compressor 100b.

Alternatively, thrust pad 40 be threaded with supporting base 241, bonding or weld.Thus, by thrust pad 40 is located on supporting base 241, thrust pad 40 is made to improve the different sound of thrust of compressor 100a (100b), improve the performance of compressor 100a (100b), be connected reliable, compact structure between thrust pad 40 with supporting base 241, the performance of compressor 100a (100b) can be ensured.

As shown in Figure 3, in other embodiments of the present utility model, the lower end of supplementary bearing 24 is provided with the cutting ferrule 242 of the lower ending opening of closed supplementary bearing 24, the lower end surface of countershaft 33 is formed as push stopping part 31, the upper-end surface of cutting ferrule 242 is formed as supporting portion 21, and thrust pad 40 is located between the lower end of supplementary bearing 24 and cutting ferrule 242.

Particularly, the bent axle 30 of compressor 100c is primarily of main shaft 32, countershaft 33 and eccentric shaft 34 form, bearing unit 20 is primarily of main bearing 22, cylinder 23 and supplementary bearing 24 form, wherein, bent axle 30 vertically (above-below direction as shown in Figure 3) is arranged, the two ends of the eccentric shaft 34 of bent axle 30 are connected with the upper end of countershaft 33 with the lower end of main shaft 32 respectively, main bearing 22, cylinder 23 and supplementary bearing 24 are arranged along the vertical direction, wherein eccentric shaft 34 is located in cylinder 23, and main bearing 22 be set in bent axle 30 main shaft 32 on and be positioned at the top of cylinder 23, the countershaft 33 that supplementary bearing 24 is set in bent axle 30 is positioned at the below of cylinder 23, arranged spaced apart along the vertical direction with main bearing 22 on the free end that rotor 50 is set in main shaft 32.

Further, the lower end of supplementary bearing 24 is provided with the cutting ferrule 242 of the lower ending opening of closed supplementary bearing 24, the lower end surface of countershaft 33 is formed as push stopping part 31, and the upper-end surface of cutting ferrule 242 is formed as supporting portion 21, to make the lower end surface of countershaft 33 only support thrust pad 40 on the upper surface that thrust pad 40 is located at cutting ferrule 242.Particularly, supplementary bearing 24 is provided with annular slot (not shown), the draw-in groove that cutting ferrule 242 is fastened on supplementary bearing 24 is interior with the lower ending opening of closed supplementary bearing 24, thus play the effect of axial limiting, when compressor 100c is in operation process, the lower end surface of countershaft 33 only bears the gravity of bent axle 30, rotor 50 and miscellaneous part and downward magnetic pull etc. to the upper-end surface of cutting ferrule 242 to make cutting ferrule 242, and thrust pad 40 is located at therebetween, can buffer function be played, thus reduce the noise of compressor.

Manufactured materials due to thrust pad 40 is nonmetal, and the modulus of elasticity in comperssion of the material of thrust pad 40 can control within 100GPa, thus ensure compressor 100c in the course of the work, thrust pad 40 can play the effect of buffering to the shock of push stopping part 31 and supporting portion 21, and then the different sound of the thrust improving compressor 100c, thus reduce the thrust noise of compressor 100c.

As shown in Figure 4, in the present embodiment, supplementary bearing 24 is provided with baffler 243, is provided with thrust pad 40 between the lower end surface of baffler 243 and supplementary bearing 24, and countershaft 33 only supports thrust pad 40.That is, the compressor 100d main housing 10 of this embodiment, bearing unit 20, bent axle 30, thrust pad 40 and baffler 243 form, wherein, baffler 243 is connected with supplementary bearing 24, the lower end surface of supplementary bearing 24 forms push stopping part 31, and the diapire of baffler 243 forms supporting portion 21, with the upper surface making the lower end surface of supplementary bearing 24 only support thrust pad 40 on the diapire that thrust pad 40 is located at baffler 243, thus the energy of the vibration wave of compressor 100d can be absorbed, alleviate the shock between push stopping part 31 and supporting portion 21, and then the different sound of the thrust improving compressor 100d, improve the performance of compressor 100d, the structure of this compressor 100d is simple, cost is low, noise is lower, combination property is strong.

According to the compressor 100 of the utility model embodiment other form and operation be all known for those of ordinary skills, be not described in detail here.

In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " 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 at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., 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 mechanical connection, also can be electrical connection or each other can communication; 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, unless otherwise clear and definite restriction.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 utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.

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 above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.

Claims (10)

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

Housing;

Bearing unit, described bearing unit is located in described housing;

Bent axle, one end of described bent axle stretches into described bearing unit and rotating center along described housing is rotatable, and described bent axle is provided with the push stopping part of only supporting described bearing unit, and described bearing unit is provided with the supporting portion corresponding with described push stopping part position;

Thrust pad, described thrust pad is located between described push stopping part and described supporting portion, and described push stopping part only supports described thrust pad, and described thrust pad is at least one in rubber pad, plastic mattress, asbestos packing, graphite pads or fiber cushion.

2. compressor according to claim 1, is characterized in that, described bent axle comprises main shaft, countershaft and eccentric shaft, and the two ends of described eccentric shaft are connected with described countershaft with described main shaft respectively,

Described bearing unit comprises main bearing, cylinder and supplementary bearing in the vertical direction successively, and described main bearing is set on described main shaft, and described eccentric shaft is positioned at described cylinder, and described supplementary bearing is set on described countershaft.

3. compressor according to claim 2, it is characterized in that, the lower end of described supplementary bearing is provided with supporting base, described supporting base has the cavity of open upper end, the lower end of described countershaft is provided with strut, be provided with described thrust pad between the lower end surface of described strut and the diapire of described supporting base, described strut only supports described thrust pad.

4. compressor according to claim 3, is characterized in that, is provided with described thrust pad between the upper-end surface of described supporting base and the lower end of described supplementary bearing.

5. the compressor according to claim 3 or 4, is characterized in that, described strut is set on described countershaft, and the lower end surface of described strut is formed as spherical.

6. compressor according to claim 5, is characterized in that, described thrust pad is threaded with described supporting base, bonding or weld.

7. compressor according to claim 2, it is characterized in that, the lower end of described supplementary bearing is provided with the cutting ferrule of the lower ending opening of closed described supplementary bearing, the lower end surface of described countershaft is formed as described push stopping part, the upper-end surface of described cutting ferrule is formed as described supporting portion, and described thrust pad is located between the lower end of described supplementary bearing and described cutting ferrule.

8. compressor according to claim 2, is characterized in that, described supplementary bearing is provided with baffler, is provided with thrust pad between the lower end surface of described baffler and described supplementary bearing, and described countershaft only supports described thrust pad.

9. the compressor according to any one of claim 1-8, is characterized in that, the thickness of described thrust pad is H, 0.1mm≤H≤5mm.

10. compressor according to claim 9, is characterized in that, the Young's modulus of the material of described thrust pad is G, G≤100GPa.