CN205036579U - Electronic rotary compressor - Google Patents
Electronic rotary compressor Download PDFInfo
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- CN205036579U CN205036579U CN201520722291.5U CN201520722291U CN205036579U CN 205036579 U CN205036579 U CN 205036579U CN 201520722291 U CN201520722291 U CN 201520722291U CN 205036579 U CN205036579 U CN 205036579U
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- bearing unit
- rotary compressor
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Abstract
The utility model discloses an electronic rotary compressor, including casing, compressing mechanism portion and motor, the casing includes cylindrical shell, the 1st end plate and the 2nd end plate of two opening faces of sealed cylindrical shell respectively, and the motor includes stator and rotor, and the periphery wall of stator and the periphery wall of compressing mechanism portion are fixed on the internal perisporium of cylindrical shell, and compressing mechanism portion has 1 bearing assembly and rotation axis. Along there being the 2nd bearing during the sealed face of the 1st end plate can gliding bearing assembly. Rotation axis and 1 bearing assembly and the 2nd bearing sliding fit, rotor and rotation axis fixed connection, the rotor is located between 1 bearing assembly and the 2nd bearing. Welded fastening is carried out in the outside that the 1st end plate and bearing assembly were constructed from the 1st end plate. According to the utility model discloses an electronic rotary compressor for the rotation axis coincidence of 1 bearing assembly's the central axis, the central bearing of the 2nd bearing and rotation axis, the aligning precision is high.
Description
Technical field
The utility model relates to compressor field, especially relates to a kind of electric rotary compressor.
Background technique
Use in the air-conditioning that power consumption is maximum in electrical household appliance and universal rotary compressor, have strong request to APF (efficiency in season) lifting and low-noise vibrating.And the lifting of the heating performance that the speed up due to rotating speed brings is more concerned.In order to meet these requirements, need the design bearing realizing high efficiency and high reliability.
The electric rotary rotary compressor of high speed operation, needs to prevent from swinging because rotor rotates the running shaft caused.As the countermeasure preventing from swinging, effective way is equipped with bearing respectively in two ends of rotor.But except the aligning of rotor and stator, the aligning of above-mentioned 2 bearings is also problem.
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 electric rotary compressor, aligning precision is high, reduces bent axle and the abrasion between the 1st bearing unit and the 2nd bearing.
According to electric rotary compressor of the present utility model, comprise housing, compression mechanical part and motor, described housing comprises cylindrical shell, seals the 1st end plate and the 2nd end plate of two opening surfaces of described cylindrical shell respectively, described motor comprises stators and rotators, the periphery wall of described stator and the periphery wall of described compression mechanical part are fixed on the inner circle wall of described cylindrical shell, and described compression mechanical part has the 1st bearing unit and running shaft; The 2nd bearing is had in the bearing unit that the sealing surface of described 1st end plate can slide; Described running shaft and described 1st bearing unit and described 2nd bearing are slidably matched; Described rotor is fixedly connected with described running shaft, and described rotor is between described 1st bearing unit and described 2nd bearing; Described 1st end plate and described bearing unit are configured to be welded and fixed from the outside of described 1st end plate.
According to electric rotary compressor of the present utility model, make the central axis of the 1st bearing unit, the centre bearing of the 2nd bearing and the rotation axis coincident of running shaft, aligning precision is high, reduce bent axle and the abrasion between the 1st bearing unit and the 2nd bearing, improve electric efficiency and reduce motor noise, improve reliability and the performance of compressor.
In embodiments more of the present utility model, can slide by relatively described 1st end plate to make described bearing unit in the gap being formed with glide direction between described 1st end plate and described bearing unit.
Particularly, between the rod in the hole that one side on the mating face of described bearing unit and described 1st end plate possesses and this hole through or connecting tube, there is gap, described rod or connecting tube connect described 1st end plate or described bearing unit, maintain the snubber that described 1st end plate is connected with described bearing unit and are located on described rod or described connecting tube.
More specifically, described connecting tube is outlet pipe or sucking pipe.
Alternatively, be laser bonding between described 1st end plate and described bearing unit.
In examples more of the present utility model, described 1st bearing unit is made up of several bearing.
Alternatively, described 1st bearing unit and described 2nd bearing are rolling bearing or sliding bearing.
In embodiments more of the present utility model, described compression mechanical part comprises by described running shaft driving to carry out the piston that eccentric revolution runs, the slide plate carrying out synchronous reciprocating operation with described piston.
Accompanying drawing explanation
Fig. 1 is relevant to embodiment 1 of the present utility model, represents the in-built longitudinal section of rotary compressor;
Fig. 2 is relevant to embodiment 1, represents the details drawing of bearing unit;
Fig. 3 is relevant to embodiment 1, the assembling details drawing of housing end plate and bearing unit;
Fig. 4 is relevant to embodiment 1, carry out aligning assembling by aligning fixture to motor and compression mechanical part;
Fig. 5 is relevant to embodiment 1, represent that the aligning of the 1st bearing unit and the 2nd bearing and laser bonding are assembled;
Fig. 6 is relevant to embodiment 2 of the present utility model, represents the details drawing of bearing unit;
Fig. 7 is relevant to embodiment 3 of the present utility model, represents the design example (1) of bearing unit;
The design example (2) that Fig. 8 is relevant to embodiment 3, represent bearing unit;
The design example (3) that Fig. 9 is relevant to embodiment 3, represent bearing unit;
Figure 10 is relevant to embodiment 4 of the present utility model, represents the in-built longitudinal section of rotary compressor;
Figure 11 is relevant to embodiment 5 of the present utility model, represents the in-built longitudinal section of rotary compressor.
Reference character:
Twin-tub rotation-type compressor 1, motor 4, stator 5, rotor 6,
Housing 2, cylindrical shell 2a, the 1st end plate 2b, the 2nd end plate 2c,
Compression mechanical part 20 (60,70), central diaphragm 23, the 1st bearing unit 15, cylinder 21, sealing plate 28a (28b, 22), piston 32, spot welding 37, silencing apparatus 29a (29b), coffer 50, sliding bearing 50a,
Bent axle 33, running shaft 30, shaft end 30b, oil-sucking hole 31, countershaft 55a, main shaft 55b, bearing sleeve 26, pore 30a,
2nd bearing 25, bearing unit 10, gas orifice 11, bushing nut 13, flange 10b, through hole 12, cylindrical cavity 10a, groove 10c, end board assembly 8, plectane 58,
Suction pipe 24, outlet pipe 3, brazing 3a, bolt 18,
Machinery Ministry holding station 45, center hole 45b.
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.
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.
Describe the electric rotary compressor according to the utility model embodiment in detail below with reference to Fig. 1-Figure 11, wherein electric rotary compressor can be the compressor of the types such as single cylinder compressor, duplex cylinder compressor, horizontal compressor.
According to the electric rotary compressor of the utility model embodiment, comprise housing 2, compression mechanical part and motor 4, housing 2 comprises the 1st end plate 2b and the 2nd end plate 2c of cylindrical shell 2a, respectively two opening surfaces of sealing cylinder housing 2a.Motor 4 comprises stator 5 and rotor 6, and the periphery wall of stator 5 and the periphery wall of compression mechanical part are fixed on the inner circle wall of cylindrical shell 2a, and compression mechanical part has the 1st bearing unit 15 and running shaft 30.
In the bearing unit 10 that the sealing surface of the 1st end plate 2b can slide, have the 2nd bearing 25, that is, bearing unit 10 comprises the 2nd bearing 25, and bearing unit 10 can slide along the sealing surface of the 1st end plate 2b.Thus be convenient to the central axis of adjustment the 2nd bearing 25, make the rotation axis coincident between the central axis of the 2nd bearing 25 and running shaft 30.
Running shaft 30 and the 1st bearing unit 15 and the 2nd bearing 25 are slidably matched.Rotor 6 is fixedly connected with running shaft 30 to drive running shaft 30 to rotate, and rotor 6 is between the 1st bearing unit 15 and the 2nd bearing 25.1st end plate 2b and bearing unit 10 are configured to be welded and fixed from the outside of the 1st end plate 2b.That is, from the outside of the 1st end plate 2b, bearing unit 10 can be welded on the 1st end plate 2b.
When electric rotary compressor is installed, can first stator 5 and compression mechanical part be fixed on cylindrical shell 2a, complete the aligning assembling of compression mechanical part and stator 5, and then the top of running shaft 30 will be enclosed within outside the 2nd bearing 25,1st end plate 2b is welded on the upper end open portion of cylindrical shell 2a, from the outside of the 1st end plate 2b, bearing unit 10 is welded on the 1st end plate 2b.Because the relative 1st end plate 2b of bearing unit 10 can slide, the self-aligning thus the 2nd bearing 25 can slide.
According to the electric rotary compressor of the utility model embodiment, because the bearing unit 10 being provided with the 2nd bearing 25 can slide by relative 1st end plate 2b, thus when installing compressor, the position of the 2nd bearing 25 can be adjusted, make the central axis of the 2nd bearing 25 and the rotation axis coincident of running shaft 30, and then make the central axis of the 1st bearing unit 15, the centre bearing of the 2nd bearing 25 and the rotation axis coincident of running shaft 30, aligning precision is high, reduce bent axle and the abrasion between the 1st bearing unit 15 and the 2nd bearing 25, improve motor 4 efficiency and reduce motor 4 noise, improve reliability and the performance of compressor.
In specific embodiments more of the present utility model, can slide by relative 1st end plate 2b to make bearing unit 10 in the gap being formed with glide direction between the 1st end plate 2b and bearing unit 10.
Further particularly, have gap between the rod in the hole that the side on the mating face of bearing unit 10 and the 1st end plate 2b possesses and this hole through or connecting tube, rod or connecting tube connect the 1st end plate 2b or bearing unit 10.Such as shown in Figures 2 and 3, bearing unit 10 is provided with through hole 12, and connecting tube is located on the 1st end plate 2b, has gap between connecting tube and through hole 12, thus makes the relative 1st end plate 2b of bearing unit 10 slidably.Again such as shown in Figure 9, the 1st end plate 2b is provided with through hole 12, and connecting tube is located on bearing unit 10, has gap between bearing unit 10 and through hole 12, thus makes the relative 1st end plate 2b of bearing unit 10 slidably.Again such as shown in Figure 7, bearing unit 10 is provided with through hole 12, and the 1st end plate 2b is provided with rod (such as bolt 18), has gap, thus make the relative 1st end plate 2b of bearing unit 10 slidably between rod and through hole 12.
Maintain the snubber that the 1st end plate 2b is connected with bearing unit 10 to be located on rod or connecting tube.In other words, snubber drops from the 1st end plate 2b to avoid bearing unit 10 for the connection maintained between the 1st end plate 2b and bearing unit 10, and snubber can be located on rod or connecting tube.Such as shown in Figures 2 and 3, snubber is bushing nut 13, and snubber is located on connecting tube.Or as shown with 7, snubber is bushing nut 13, snubber is located on rod (such as bolt 18).
More specifically, connecting tube is outlet pipe or sucking pipe.That is, connecting tube is the outlet pipe be connected with the high pressure side of refrigerating circulatory device, or the sucking pipe be connected with the low voltage side of refrigerating circulatory device.
Alternatively, be laser bonding between the 1st end plate 2b and bearing unit 10.
In examples more of the present utility model, the 1st bearing unit 15 is made up of several bearing.Such as shown in figure 11, the 1st bearing unit 15 is made up of the bearing had in two sealing plates 28a, 28b.Or two sealing plates 28a, 28b directly form the 1st bearing unit 15, and namely two sealing plates 28a, 28b and running shaft 30 are slidably matched.
Alternatively, the 1st bearing unit 15 and the 2nd bearing 25 are rolling bearing or sliding bearing.Namely the 1st bearing unit 15 is rolling bearing or sliding bearing, and the 2nd bearing 25 is rolling bearing or sliding bearing.
According to embodiments more of the present utility model, in assembling procedure, after keeping the shaft end 30b of a side of running shaft 30, weld the 1st end plate 2b and bearing unit 10 again.Namely first the shaft end 30b of running shaft 30 one end is kept motionless after, then make the other end of running shaft 30 extend in the 2nd bearing 25 of bearing unit 10, afterwards the 1st end plate 2b be fixed on cylindrical shell 2a, bearing unit 10 be fixed on the 1st end plate 2b.Thus the aligning precision of the 2nd bearing 25 can be ensured.
Particularly, the maintenance means of shaft end 30b insert the center hole 45b that the Machinery Ministry holding station 45 that is arranged in the opening end of cylindrical shell 2a possesses, or be inserted in the bearing carrying out sliding conjunction in compression mechanical part with shaft end 30b.That is, running shaft 30 keeps by the center hole 45b that shaft end 30b is inserted into Machinery Ministry holding station 45, and Machinery Ministry holding station 45 is inserted into the opening end of cylindrical shell 2a.Or running shaft 30 is slidably matched to keep by making the bearing in shaft end 30b and compression mechanical part.
In embodiments more of the present utility model, in assembling procedure, after cylindrical shell 2a fixes the 1st end plate 2b, the 1st end plate 2b welds bearing unit 10.
In embodiments more of the present utility model, compression mechanical part comprises and drives to carry out the piston 32 that eccentric revolution runs, the slide plate carrying out synchronous reciprocating operation with piston 32 by running shaft 30.
The electric rotary compressor of the utility model five specific embodiments is described in detail below with reference to Fig. 1-Figure 11.
Embodiment 1:
The structure of the twin-tub rotation-type compressor 1 that Fig. 1 has represented.Motor 4 is made up of stator 5 and rotor 6, and the periphery of the central diaphragm 23 of the high rigidity that the periphery of stator 5 and the center of compression mechanical part 20 possess is fixed on the inner circumferential of the housing 2 of sealing.The 1st end plate 2b that the housing 2 sealed is welded and fixed by cylindrical shell 2a, its both ends open portion and the 2nd end plate 2c is formed.
The utility model, in advance to be located on the 1st end plate 2b and the bearing unit 10 of storage the 2nd bearing 25 carries out pretension, in the assembling way of compressor, can carry out laser bonding to bearing unit 10.The shelf of bearing unit 10 is by the manufacture such as sheet metal, forging, sintered alloy of quick-turning steel, punch process.In addition, the 2nd bearing 25 is possessed at the center of bearing unit 10.
Sealing plate 28a and sealing plate 28b that the central diaphragm 23 that compression mechanical part 20 possesses the 1st bearing unit 15 by: its center, 2 cylinders 21 connected its two sides are connected with the compression chamber opening surface of these cylinders 21, the bent axle 33 of the piston 32 be accommodated in respectively in above-mentioned cylinder compression chamber is driven to form.The periphery of central diaphragm 23 is fixed in cylindrical shell 2a by several spot welding 37.In addition, the slide plate possessed in each cylinder does not illustrate.
The running shaft 30 that account for most of bent axle 33 carries out sliding support by the 1st bearing unit 15 and the 2nd bearing 25, and bent axle 33 possesses the eccentric part of eccentric drive 2 pistons 32 respectively.Further, running shaft 30 secures rotor 6.In addition, rotor 6 is between the 1st bearing unit 15 and the 2nd bearing 25.In addition, embodiment 1, and the 1st bearing unit 15 and the 2nd bearing 25 have employed the needle bearing that classification is rolling bearing.
On 1st end plate 2b by possessing the 2nd bearing 25 in the fixing bearing unit 10 of laser bonding 35, there is gas orifice 11 opening its side.Therefore, shunting from connecting the suction pipe 24 of central diaphragm 23, carries out compressing the pressurized gas of discharging are discharged to housing 2 inside by the silencing apparatus 29a of half baked donut shape and silencing apparatus 29b in 2 cylinders.
The pressurized gas being arrived its top by motor 4 are flow in bearing unit 10 by gas orifice 11.Afterwards, discharge to the high pressure side of refrigerating circulatory device from outlet pipe 3.In addition, the internal pressure of the housing 2 of Fig. 1 is the high pressure side of refrigeration cycle pressure, but internal pressure is in the design of low voltage side, and outlet pipe 3 becomes sucking pipe, suction pipe 24 is high pressure side.
Have outlet pipe 3 through in hole to bearing unit 10 inside center opening, this through portion inserts bushing nut 13, so be connected to the 1st end plate 2b on bearing unit 10.Bearing unit 10 laser bonding on the 1st end plate 2b before, bearing unit 10 above can be comfortable along the sealing surface of the 1st end plate 2b slip.This point describes in detail at Fig. 2 and Fig. 3.
In addition, Fig. 1 complete in figure, (1) consistent with the inner diameter central of stator 5 by ensureing running shaft 30, must make machine air gap (gap of stator 5 and rotor 6) evenly.The spin axis of (2) the 1st bearing uniies 15 and the 2nd bearing 25 must be same axis.Whether properly, to be decided by the integrating error of design main cause and manufacture main cause.Embodiment 1 is the solve scheme of this problem.
Fig. 2 represents that the 2nd bearing 25 inserts the detailed sectional view of fixing bearing unit 10, and in the position of outlet pipe 3 and final assembling, the top of inserting the running shaft 30 in the 2nd bearing 25 represents with dotted line respectively.In addition, Fig. 3 is the ssembly drawing be fixed in advance by bearing unit 10 in the 1st end plate 2b.
Bearing unit 10 is the cylinders having flange 10b above, the through hole 12 that the central authorities of flange 10b have outlet pipe 3 through.Further, its inside has cylindrical cavity 10a, this side securing the 2nd bearing 25 to have gas orifice 11 opening.Two shoulders of flange 10b are processed into sphere, can compress with the inner face of the 1st bending end plate 2b.The groove 10c that the central authorities of flange 10b possess, when the brazing of outlet pipe 3, avoid the interference of the solder leaked with the inner face of the 1st end plate 2b etc., be conscientiously connected the 1st end plate 2b and bearing unit 10.
Bushing nut 13 is that the flange 10b of bearing unit 10 is sealed the means be fixed on the 1st end plate 2b.That is, the external diameter of through outlet pipe 3 inserts bushing nut 13, due to its spacing effect, bearing unit 10 is connected with the inner face of the 1st end plate 2b.In addition, the connection adding the words of wave washer or Spring pad, bearing unit 10 and the 1st end plate 2b between bushing nut 13 and through hole 12 just stabilizes.
And cylindrical cavity 10a is gap between the internal diameter of concentrically ringed through hole 12 and the external diameter of outlet pipe 3, the mobile space determining the substantially horizontal of bearing unit 10.The internal diameter of through hole 12 is D, and the single-sided sliding amount S that the external diameter of outlet pipe 3 is the words of d, (D-d)/2 are bearing unit 10 substantially horizontal, bearing unit 10 can be comfortable mobile in the scope of size S.But through hole 12 and outlet pipe 3 are concentric.
In compressor assembling procedure described later, determine the factor of amount of movement be by the precision of the 1st end plate 2b and the concentricity of outlet pipe 3, the precision etc. of cylindrical shell 2a decide and, assembling amount of deformation that the all-round welding of the 1st end plate 2b and cylindrical shell 2a brings will add, but in experience, the words that gap (S) carries out setting as general 1mm are just enough.That is, the internal diameter (D) of through hole 12 is relative to the approximately large 2mm of the external diameter (d) of outlet pipe 3.Even if but expansion does not also affect aligning precision further.
In addition, the laser bonding 35 of Fig. 2 position, be that all-round welding is carried out to the pressing section of the 1st end plate 2b and bearing unit 10.In laser bonding, even if produce some gaps, also can carry out precision and connect.This is because the reason of combination is easily melted on 2 surfaces of thawing overheated in thermal collecting among a small circle.
Fig. 3 represents and carries out pre-assembled end board assembly 8 by bushing nut 13 pairs of bearing uniies 10 and the 1st end plate 2b.But this is the assembling before laser bonding, so bearing unit 10 can slide.Outlet pipe 3 is fixed by brazing 3a.In addition, the words that the external diameter of bushing nut 13 is larger than the internal diameter of the 2nd bearing 25, fixture to be used in outlet pipe 3 to insert bushing nut 13.
Fig. 4 and Fig. 5 represents the aligning assembling of the air gap of motor, the aligning assembling of the 2nd bearing 25 and running shaft 30 respectively.In the diagram, the shaft end 30b of running shaft 30 inserts in the center hole 45b of Machinery Ministry holding station 45, retainer shaft end 30b.
Maintain this state, by aligning mode as usual, aligning carried out to the internal diameter of stator 5 and the external diameter of rotor 6.Meanwhile, the periphery of central diaphragm 23 point is welded in the inner circumferential of cylindrical shell 2a.Its result, motor aligning (air gap aligning) completes.At this moment, a side of running shaft 30 at the inner diameter central of stator 5, the opposing party is at the center of center hole 45b.Therefore, after the aligning fixture (motor aligning fixture) of stator 5 and rotor 6 takes off, the posture of running shaft 30 can also be kept.
Next the operation of the cylindrical shell 2a upper end end board assembly 8 of Fig. 3 being welded on Fig. 4, is forwarded to.First, after the 2nd bearing 25 that possesses in the bearing unit 10 of end board assembly 8 inserts the upper end of upright running shaft 30, the 1st end plate 2b is welded on the upper end of cylindrical shell 2a.After welding, the 2nd bearing 25 and running shaft 30 are self-aligning.That is, have can the effect of horizontally moving functions for bearing unit 10.
After 2nd bearing 25 self-aligning, outside the 1st end plate 2b, laser bonding 35 is carried out to the all-round of flange 10b of the 2nd bearing 25 above.Its result, the aligning of the 2nd bearing 25 and weld assembling and complete and become Fig. 5.In addition, advise that laser bonding 35 carries out all-round welding again after several somes preweldings.
Thereafter, take off Machinery Ministry holding station 45 from cylindrical shell 2a, weld after the 2nd end plate 2c among cylindrical shell 2a, the twin-tub rotation-type compressor 1 of Fig. 1 just completes.But, as shown in Figure 4 and Figure 5, from compression mechanical part 20, taken off silencing apparatus 29a in advance, so they need to assemble before the welding of the 2nd end plate 2c.
Because this operation changes, the later assembling procedure of Fig. 4 needs the length guaranteeing shaft end 30b, but in the present embodiment, sealing plate 28a is the effect in seal compression chamber, so do not have bearing, does not need to carry out the aligning to running shaft 30.Therefore, after the operation of Fig. 5 completes, sealing plate 28a fixes silencing apparatus 29a just passable.
In addition, the piston 32 received in cylinder 21 from the assembling of compression mechanical part 20, except silencing apparatus 29a and sealing plate 28a and slide plate (not shown) are not assembled, and can assemble after the operation of Fig. 5 completes.This gimmick, in the design that shaft end 30b is shorter, is 2 effective means in bearing aligning assembling aspect.And, as the maintenance of shaft end 30b, the oil-sucking hole 31 of running shaft 30 lower ending opening can be utilized.The method no matter shaft end 30b length how, running shaft 30 can be kept.
Embodiment 2:
As above-mentioned, after the engineering of Fig. 5 completes, relative to compression mechanical part 20, utilize sealing plate 28a simply to take off and to install, the method utilizing this feature to carry out aligning assembling discloses in example 2.In compression mechanical part 20 shown in Fig. 6, assemble the words of the coffer 50 of tape spool in advance, the shaft end 30b of running shaft 30 is supported by all sliding bearing 50a.
The aligning (motor aligning) of stator 5 internal diameter fixing in the external diameter of the rotor 6 possessed in the running shaft 30 of pre-assembled compression mechanical part 20 and cylindrical shell 2a, under the state maintained, carries out spot welding to central diaphragm 23, completes the aligning assembling of Fig. 6.Here, in the same manner as in Example 1, motor aligning is taken off.
The difference of Fig. 4 of embodiment 1 and Fig. 6 of embodiment 2 is, shaft end 30b is undertaken supporting by center hole 45b but in Fig. 6, shaft end 30b is supported by sliding bearing 50a in Fig. 4.Therefore, the alternative means of hole 45b centered by band bearing coffer 50 is just known.Its result, can move on to next process.
The operation that Fig. 6 is later is identical with embodiment 1.That is, end board assembly 8 is welded on cylindrical shell 2a, carries out laser bonding, just can complete the assembling identical with Fig. 5 to bearing unit 10.Thereafter, the method for embodiment 1 is copied.That is, take off coffer 50 from the cylinder 21 of downside, change sealing plate 28a and silencing apparatus 29a.In addition, much less, the gap of shaft end 30b and sliding bearing 50a is little as far as possible.
Embodiment 3:
In embodiment 1, using bearing unit 10 as pre-assembled means, in outlet pipe 3, insert bushing nut 13 but Fig. 7 embodiment 3, alternative as outlet pipe 3, can at the center weld fixing bolt 18 of the 1st end plate 2b.But, need to change the configuration of outlet pipe 3.Although in addition, bushing nut 13 convenient working, also has other alternative means a lot.
The center hole of outlet pipe 3 by the 1st end plate 2b of the center weld of bearing unit 10, the method for the insertion of the upper end from outlet pipe 3 bushing nut 13 also have as shown in Figure 8.In the method, after the laser bonding 35 of bearing unit 10, reclaim bushing nut 13 be also fine.
Inserted in the outside of bearing unit 10 from the 1st end plate 2b in addition, as shown in Figure 9, the 2nd bearing 25 can be inserted in the upper end of running shaft 30.In this design, the center of the 1st end plate 2b is provided with can by the through hole 12 of bearing unit 10.After 1st end plate 2b is welded on cylindrical shell 2a, insert in the upper end of running shaft 30 bearing unit 10, flange 10b all-round laser bonding on the 1st end plate 2b.In addition, through hole 12 is larger than bearing unit 10 external diameter, possesses above-mentioned glade plane space.
Embodiment 4:
Embodiment illustrated in fig. 10 4, be the cases of design applying above-mentioned announcement technology in single cylinder rotary compressor.The periphery forming the cylinder 21 of compression mechanical part 60 is fixed on the inner circumferential of cylindrical shell 2a.The center of the sealing plate 22 of sealing cylinder 21 possesses the 1st bearing unit 15, possesses silencing apparatus 29b above it.
The sealing plate 28a in the compression chamber open lower side face of sealing cylinder 21 takes off, just the easy aligning assembly ensureing running shaft 30 in assembling procedure, can follow embodiment 1.In addition, 2 bearings are that rolling bearing or sliding bearing can.
Embodiment 5:
The compression mechanical part 70 of the embodiment 5 shown in Figure 11, for following the design of twin-tub rotation-type compressor in the past, forms in the bent axle 33 of compression mechanical part 70 and possesses countershaft 55a and main shaft 55b.The sliding bearing 16a possessed respectively in they and sealing plate 28a and sealing plate 28b and sliding bearing 16b is slidably matched.And, be weldingly fixed in the bearing unit 10 on the 1st end plate 2b and possess bearing sleeve 26.
In the design, sliding bearing 16a and sliding bearing 16b is equivalent to the 1st bearing unit 15 of embodiment 1, bearing sleeve 26 is equivalent to the 2nd bearing 25.Namely, the 1st bearing unit is by the embodiment of 2 bearings formations.Running shaft 30 is identical with embodiment 1 with the aligning of bearing sleeve 26, but in the same manner as in Example 2, the maintenance of the shaft end 30b adopted in embodiment 1 does not need.
In addition, the pore 30a possessed in running shaft 30, to be communicated with the cylindrical cavity 10a of bearing unit 10 through the axle mesopore of running shaft 30.Therefore, pore 30a is the gas channel from 2 cylinder 21 exhausts out.Plectane 58 is rotated by it and plays oily separating effect.
Even embodiment 5 uses the design of several bearing in the 1st bearing unit like this, the aligning assembling of motor aligning and the 1st bearing unit, the 2nd bearing can be set up.When applying in horizontal rotary compression in addition, its design and assembling method also can apply 5 embodiments of above-mentioned announcement.
Rotary compressor of the present utility model can be mounted in air conditioner, refrigeration plant, water heater, vehicle-mounted freezing or air-conditioning machine etc.In addition, more existing mounting equipment can be used.
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 (8)
1. an electric rotary compressor, it is characterized in that, comprise housing, compression mechanical part and motor, described housing comprises cylindrical shell, seals the 1st end plate and the 2nd end plate of two opening surfaces of described cylindrical shell respectively, described motor comprises stators and rotators, the periphery wall of described stator and the periphery wall of described compression mechanical part are fixed on the inner circle wall of described cylindrical shell, and described compression mechanical part has the 1st bearing unit and running shaft;
The 2nd bearing is had in the bearing unit that the sealing surface of described 1st end plate can slide;
Described running shaft and described 1st bearing unit and described 2nd bearing are slidably matched; Described rotor is fixedly connected with described running shaft, and described rotor is between described 1st bearing unit and described 2nd bearing;
Described 1st end plate and described bearing unit are configured to be welded and fixed from the outside of described 1st end plate.
2. electric rotary compressor according to claim 1, is characterized in that, can slide by relatively described 1st end plate to make described bearing unit in the gap being formed with glide direction between described 1st end plate and described bearing unit.
3. electric rotary compressor according to claim 2, it is characterized in that, between the rod in the hole that one side on the mating face of described bearing unit and described 1st end plate possesses and this hole through or connecting tube, there is gap, described rod or connecting tube connect described 1st end plate or described bearing unit, maintain the snubber that described 1st end plate is connected with described bearing unit and are located on described rod or described connecting tube.
4. electric rotary compressor according to claim 3, is characterized in that, described connecting tube is outlet pipe or sucking pipe.
5. electric rotary compressor according to claim 1, is characterized in that, is laser bonding between described 1st end plate and described bearing unit.
6. electric rotary compressor according to claim 1, is characterized in that, described 1st bearing unit is made up of several bearing.
7. electric rotary compressor according to claim 1, is characterized in that, described 1st bearing unit and described 2nd bearing are rolling bearing or sliding bearing.
8. electric rotary compressor according to claim 1, is characterized in that, described compression mechanical part comprises by described running shaft driving to carry out the piston that eccentric revolution runs, the slide plate carrying out synchronous reciprocating operation with described piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722291.5U CN205036579U (en) | 2015-09-17 | 2015-09-17 | Electronic rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722291.5U CN205036579U (en) | 2015-09-17 | 2015-09-17 | Electronic rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205036579U true CN205036579U (en) | 2016-02-17 |
Family
ID=55295484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520722291.5U Withdrawn - After Issue CN205036579U (en) | 2015-09-17 | 2015-09-17 | Electronic rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205036579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090030A (en) * | 2015-09-17 | 2015-11-25 | 广东美芝制冷设备有限公司 | Electric rotary compressor |
-
2015
- 2015-09-17 CN CN201520722291.5U patent/CN205036579U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090030A (en) * | 2015-09-17 | 2015-11-25 | 广东美芝制冷设备有限公司 | Electric rotary compressor |
| CN105090030B (en) * | 2015-09-17 | 2018-01-16 | 广东美芝制冷设备有限公司 | Electric rotary compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160217 Effective date of abandoning: 20180116 |