CN201368023Y - Scroll compressor - Google Patents
Scroll compressor Download PDFInfo
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- CN201368023Y CN201368023Y CNU2009201054361U CN200920105436U CN201368023Y CN 201368023 Y CN201368023 Y CN 201368023Y CN U2009201054361 U CNU2009201054361 U CN U2009201054361U CN 200920105436 U CN200920105436 U CN 200920105436U CN 201368023 Y CN201368023 Y CN 201368023Y
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Abstract
The utility model provides a scroll compressor which comprises a compressor shell body, a bracket, a stationary scroll part, a dynamic scroll part and an actuator part, wherein the bracket is mounted in the compressor shell body; the stationary scroll part is fixed in the compressor shell body; the dynamic scroll part is rotationally supported on the bracket and is assembled with the stationary scroll part; the actuator part is connected with the dynamic scroll part for driving the dynamic scroll part to rotate. A friction reduction part for reducing friction between the dynamic scroll part and the bracket is arranged between the dynamic scroll part and the bracket. So the friction reduction part can be used for improving the friction situation between the dynamic scroll part and the bracket so that the friction and wear between the dynamic scroll part and the bracket are reduced; the energy consumption and noise of scroll compressor is reduced and the scroll compressor operates more stably.
Description
Technical field
The utility model relates to a kind of scroll compressor, particularly relates to reducing the scroll compressor that rubs between moving scroll element and the support.
Background technique
Along with the development of Refrigeration ﹠ Air-Conditioning technology, need to improve the compression efficiency and the functional reliability of compressor.Therefore, the exploitation energy-saving compressor just becomes one of main direction of refrigeration technology development.
The principle of scroll compressor refrigeration is by the basic circle center rotation of moving scroll element around quiet scroll element, and dwindles the volume by the formed pressing chamber of joint of described moving scroll element and described quiet scroll element gradually, thereby reaches the purpose of pressurized gas.Wherein moving scroll element directly is supported on the support that is fixed in the compressor housing.In addition, an end (upper end) that is used for driving the bent axle that moves the scroll element rotation is connected to moving scroll element by the formed through hole of support, the other end (lower end) directly is supported on the lower supporting frame that is fixed in the compressor housing, thereby when bent axle when rotating clockwise or counterclockwise, can carry out corresponding gas compression and releasing operation.
But, in traditional scroll compressor, Chinese patent application 02129811.4 (open day be on April 2nd, 2003) for example, moving scroll element contacts with the support direct friction rotationally, and the rubbing contact area is big, and contacts moving scroll element and the support serious wear that causes by direct friction, cause reduce working life, cause the usefulness of scroll compressor to reduce, noise increases, and energy consumption increases.In addition, the lower end surface of bent axle contacts with the lower supporting frame direct friction rotationally, therefore, the serious wear of bent axle and lower supporting frame, the life-span reduces, and noise increases, and energy consumption increases.
The model utility content
The utility model is intended to one of address the above problem at least.For this reason, the purpose of this utility model is to propose a kind of scroll compressor, and described scroll compressor can reduce the friction between moving scroll element and the support, thereby life-saving reduces noise, cuts down the consumption of energy.
To achieve these goals, the utility model proposes a kind of scroll compressor, comprising: compressor housing; Support, described support is installed in the compressor housing; Quiet scroll element, described quiet scroll element is fixed in the compressor housing; Moving scroll element, described moving scroll element is supported on rotationally on the described support and with described quiet scroll element and engages; And actuating member, described actuating member links to each other with described moving scroll element and rotates to drive described moving scroll element, is provided with between wherein said moving scroll element and the described support to be used to reduce the friction means that falls that rubs between moving scroll element and the support.
Thus, in according to scroll compressor of the present utility model,, can improve andfrictional conditions between described moving scroll element and the described support, reduce the wearing and tearing of moving scroll element and support, prolong the life-span, reduce noise by the described friction means that falls.Improve the usefulness of scroll compressor thus, reduced energy consumption.
Also have following additional technical feature according to scroll compressor of the present utility model:
The described friction means that falls comprises the groove that is used for lubricant and/or lubricant oil on the upper surface that is formed on support and/or on the lower surface of moving scroll element.
Thus, on the one hand can reduce area of contact between moving scroll element and the support, simultaneously by groove, by being contained in oiling agent and/or the lubricant oil in the groove, make to form sliding bearing between moving scroll element and the support, can further reduce friction and wear, reduce noise.
The described friction means that falls further comprises on the upper surface that is located at support or the support rim on the lower surface of moving scroll element, and wherein said groove is formed on the top surface of described support rim.
Thus, can further reduce area of contact between moving scroll element and the support, reduce friction and wear by support rim.
Described groove is radial groove and/or circumferential recess.
Described support rim is formed on the lower surface of the upper surface of support or moving scroll element.
The top surface of described support rim is through Wear-resistant Treatment.Thus, can improve wear resistance.
The described friction means that falls is first roller bearing component that is located between described moving scroll element and the described rack upper surface.Thus, be converted to roller bearings, can further reduce the friction between moving scroll element and the support, reduce wearing and tearing, further prolong their life-span by scroll element is contacted with direct friction between the support.
The described friction means that falls further comprises: be fixed to first Upper gasket on the moving scroll element and be fixed to first lower levelling plate on the described support, wherein said first roller bearing component is between described first Upper gasket and described first lower levelling plate.
Thus, can further reduce the wearing and tearing of moving scroll element and support, improve their working life, after first Upper gasket and lower levelling plate may wear to a certain degree, only need to change first Upper gasket and lower levelling plate, need not more move scroll element and support, reduced cost.
Further be provided with the resilient pad that is used for shock absorbing between the upper surface of described first lower levelling plate and described support.And then described resilient pad is along circumferentially forming waveform.
Thus, can cushion of the impact of moving scroll element to support.
Described first roller bearing component comprises the clutch shaft bearing support that is formed with the first ball receiving bore and is contained in the first interior ball of ball receiving bore respectively.
Described actuating member is a bent axle, the upper end of described bent axle is connected to described moving scroll element, and the lower end of described bent axle is bearing on the lower supporting frame that is installed in the compressor housing, is provided with between the lower end surface of wherein said bent axle and the described lower supporting frame to be used to second roller bearing component that reduces to rub between bent axle and the lower supporting frame.
Thus, make to be converted to roller bearings between bent axle lower end surface and the lower supporting frame, can reduce the friction between bent axle lower end and the lower supporting frame, reduce wearing and tearing, noise and energy consumption, life-saving.
Described second roller bearing component comprises second bearing bracket that is formed with the second ball receiving bore and is contained in the second interior ball of the second ball receiving bore respectively.
Be provided with second Upper gasket on the lower end surface of described bent axle, and be provided with second lower levelling plate on described lower supporting frame, wherein said second roller bearing component is between second Upper gasket and second lower levelling plate.Thus, can further reduce the wearing and tearing of bent axle and lower supporting frame, and through after a while use, can only change second Upper gasket and second lower levelling plate, wireless replacing bent axle and lower supporting frame have reduced cost.
Other additional aspects of the utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming embodiment's the description below in conjunction with accompanying drawing, wherein:
Fig. 1 has shown the cross-sectional schematic according to scroll compressor of the present utility model;
Fig. 2 A has shown the schematic perspective view according to the support of first embodiment's of the present utility model scroll compressor, and Fig. 2 B has shown the cross-sectional schematic of described support;
Fig. 3 has shown the enlarged diagram of the part A among Fig. 2 B;
Fig. 4 A has shown the schematic perspective view according to the support of second embodiment's of the present utility model scroll compressor, and Fig. 4 B has shown the cross-sectional schematic of described support;
Fig. 5 has shown the enlarged diagram of the part B among Fig. 4 B;
Fig. 6 A has shown the schematic perspective view according to the support of the 3rd embodiment's of the present utility model scroll compressor, and Fig. 6 B has shown the cross-sectional schematic of described support;
Fig. 7 has shown the enlarged diagram of the portion C among Fig. 6 B;
Fig. 8 has shown the partial schematic sectional view according to the 4th embodiment's of the present utility model scroll compressor;
Fig. 9 has shown the enlarged diagram of part D among Fig. 8;
Figure 10 has shown the sectional perspective schematic representation according to the utility model the 4th embodiment's scroll compressor;
Figure 11 A has shown the schematic perspective view according to the resilient pad in the 4th embodiment's of the present utility model scroll compressor, and Figure 11 B has shown the cross-sectional schematic that the line E-E in Figure 11 A is got;
Figure 12 has shown the cross-sectional schematic according to the lower end of the bent axle of embodiment's of the present utility model scroll compressor; And
Figure 13 has shown the enlarged diagram of part F among Figure 12.
Embodiment
Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment who is described with reference to the drawings is exemplary, only is used to explain the utility model, and can not be interpreted as restriction of the present utility model.
Following accompanying drawing is described the scroll compressor according to embodiment of the present utility model.Fig. 1 has shown the cross-sectional schematic according to embodiment's of the present utility model scroll compressor 100.Scroll compressor 100 comprises: compressor housing; Support 1, support 1 is fixed in the compressor housing; Be fixed on the quiet scroll element 3 in the compressor housing; Moving scroll element 2, moving scroll element 2 are supported on the upper surface of support 1 and with quiet scroll element 3 and engage; Move the actuating member 5 that scroll element 2 rotates with linking to each other to drive with moving scroll element 2.Wherein, be provided with between moving scroll element 2 and the described support 1 and fall friction means 101, fall friction means 101 and can be used to reduce friction between the upper surface of the lower surface of moving scroll element 2 and support 1, thereby reduce wearing and tearing to moving scroll element 2 and support 1, prolonged their life-span, and reduced because the noise of the described generation that rubs between them.
In a specific embodiment of the present utility model, actuating member is bent axle 5 for example, and the upper end of bent axle 5 is connected to moving scroll element 2, and the lower end of bent axle 5 is by lower supporting frame 6 supportings that are fixed to bottom in the compressor housing.
In the scroll compressor shown in Fig. 1 100, compressor housing is formed by connecting by loam cake 7, middle cover 8 and lower cover 9 and inside limits a confined space, and wherein loam cake 7 and lower cover 9 can form bowl-shape lid, and are respectively welded to middle cover 8.In the formed confined space of compressor housing, hold other parts (for example, support 1, moving scroll element 2, quiet scroll element 3, bent axle 5 etc.) of scroll compressor 100 respectively.Support 1 is fixed to middle cover 8, and the center of support 1 is formed with center hole 11, and the upper end of bent axle 5 is passed center hole 11 and is connected to moving scroll element 2 and rotates to drive moving scroll element 2.The outstanding down bearing portion 12 that is formed with supporting crankshaft 5 of the central authorities of support 1.
In scroll compressor shown in Figure 1 100, moving scroll element 2 is supported on the upper surface 13 of support 1.It is interior and static that quiet scroll element 3 is fixed to compressor housing, and quiet scroll element 3 engages with moving scroll element 2 and forms pressing chamber.In Fig. 1, quiet scroll element 3 is arranged on the moving scroll element 2.Moving scroll element 2 comprises that discoideus end plate 14, cross section are the involute shape or the scroll portion 15 of similar shapes therewith, and from the outstanding downwards axle sleeve hole portion 16 of the downside of end plate 14.Thus, scroll portion 15 is configured to the form of fit engagement (joint) in opposite directions with the corresponding scroll portion of quiet scroll element 3, thereby forms a plurality of compression volumes 17 in scroll compressor 100.Thus, under the drive of bent axle 5, the gas in a plurality of compression volumes 17 is carried out squeeze operation by the rotation of moving scroll element 2.In Fig. 1,18 expressions are formed on the gas suction portion on the middle cover 8,19 expressions are formed on gas discharge section on the loam cake 7, and wherein gas suction portion 18 is connected with low voltage section in the scroll compressor 100, and gas discharge section 19 is connected with the high-voltage section of scroll compressor 100.In the bottom of Fig. 1, the lower end 51 of bent axle 5 offsets with lower supporting frame 6 and is connected (this detailed structure will be elaborated with reference to Figure 12,13 below).Lower supporting frame 6 is connected with bottom bracket 20 by bolt, and bottom bracket 20 is fixed to the inboard, lower end of middle cover 8.
(the rotor for example of principle, squeeze operation and other formations because the scroll compressor scroll compression contracts.Stator etc.) be well known to those of ordinary skill in the art, thus,, omit detailed description herein them for for purpose of brevity.
2-11 describes in detail according to the way of contact between the upper surface 13 of moving scroll element 2 and support 1 in the scroll compressor of the utility model specific embodiment below with reference to accompanying drawings, wherein Fig. 2 A has shown the stereogram according to the support 1 of first embodiment's of the present utility model scroll compressor 100, Fig. 2 B has shown the cross-sectional schematic of support, and Fig. 3 has shown the enlarged diagram of the part A among Fig. 2 B.Fig. 4 A has shown the stereogram according to the support 1 of second embodiment's of the present utility model scroll compressor 100, and Fig. 4 B has shown the cross-sectional schematic of support 1, and Fig. 5 has shown the enlarged diagram of the part B among Fig. 4 B.Fig. 6 A has shown the stereogram according to the support 1 of the 3rd embodiment's of the present utility model scroll compressor 100, and Fig. 6 B has shown the cross-sectional schematic of support 1, and Fig. 7 has shown the enlarged diagram of the portion C among Fig. 6 B.Fig. 8 has shown the partial schematic sectional view according to the 4th embodiment's of the present utility model scroll compressor 100, Fig. 9 has shown the enlarged diagram of part D among Fig. 8, and Figure 10 has shown the sectional perspective schematic representation according to the 4th embodiment's of the present utility model scroll compressor 100.Figure 11 A has shown the schematic perspective view according to the resilient pad in the 4th embodiment's of the present utility model scroll compressor 100, and Figure 11 B has shown the cross-sectional schematic that the line E-E in Figure 11 A is got.
As mentioned above, in traditional scroll compressor, moving scroll element and the direct contact friction of support, promptly moving scroll element rotationally with between direct friction contact, frictional force between moving thus scroll element and the support is bigger, causes their serious wear and has increased energy consumption.The bearing portion 12 that support 1 shown in Figure 1 has cylindrical main part 22 and gives prominence to down from the central authorities of support 1.On the circumferential side wall of main part 22, be evenly distributed with 4 fixing parts 23, be formed with a plurality of screw thread fixed holes 24 on the fixing part 23, be used to utilize bolt 25 fixed supports 1.The center of support 1 is formed with center hole 11, and the upper end of bent axle 5 is connected to moving scroll element 2 by center hole 11, and the moving scroll element 2 of driving rotates.The upper surface 13 of support 1 contacts with the lower surface of the end plate 14 of moving scroll element 2.
First embodiment
With reference to Fig. 2 B and Fig. 3 described being used to reduce between support 1 and the moving scroll element 2 friction, reducing the detailed structure of falling friction means 101 of their wearing and tearing according to first embodiment of the present utility model below.
As shown in Fig. 2 B, to fall friction means 101 and comprise support rim 26 and the circumferential recess 27 that is formed on support rim 26 top surfaces, circumferential recess 27 is used for lubricant and/or lubricant oil.Support rim 26 is positioned at upper surface 13 support 1, that be used to support moving scroll element 2, and in order to increase wear-resisting property, the top surface of support rim 26 can carry out Wear-resistant Treatment, for example quench, or Carburization Treatment etc.Support rim 26 can be formed on the upper surface of support 1, also can be welded on the upper surface of support 1, perhaps is releasably attached on the upper surface of support 1 with bolt.According to another embodiment of the present utility model, support rim 26 can be formed on the centre of upper surface 13, and center hole 11 passes support rim 26 and forms.
Alternatively, support rim 26 can form the annular around center hole 11.Thus, on the one hand can reduce rubbing contact area between the upper surface 13 of moving scroll element 2 and support 1 by support rim 26, thereby reduced frictional loss, on the other hand can by circumferential recess 27 with and the sliding bearing that constitutes of interior oiling agent or lubricant oil can further reduce friction between the upper surface 13 of moving scroll element 2 and support 1, thereby the wearing and tearing of moving scroll element 2 and support 1 have been reduced, prolonged their working life, reduce noise and energy consumption, improved the usefulness of compressor.
Need to prove, support rim 26 needn't be provided with simultaneously with circumferential recess 27, for example can directly on the upper surface 13 of support 1, only form support rim 26, just can reduce friction and wear by the area of contact between the upper surface 13 that reduces moving scroll element 2 and support 1.In addition, support rim 26 also can be formed on the lower surface of moving scroll element 2, and this can understand easily for those of ordinary skill in the art.
In addition, the sectional shape of circumferential recess 27 can be any suitable shape, for example ellipse, circle, rectangular, square, and have certain degree of depth, thus can hold proper amount of lubricating agent.
When moving scroll element 2 when rotating on the upper surface 13 at support 1 under the driving of bent axle 5 because the rubbing contact area of support rim 26 and the end plate 15 of moving scroll element 2 reduces, thereby make that the degree of wear also reduces significantly after using for a long time.In addition, in rotating process, the frictional contact surface starting good lubrication of the oiling agent of being stored in the circumferential recess 27 when rotating, this has improved the contact conditions in rotary course further.
Thus, what utilization had a said structure falls friction means 101, can improve the contact conditions between the upper surface 13 that moves scroll element 2 and support 1, thereby reduce the friction and wear between moving scroll element 2 and the support 1, reduced the energy consumption of scroll compressor 100, and because fricative noise.
Second embodiment
Describe below with reference to Fig. 4,5 and to fall friction means 101 according to second embodiment's of the present utility model scroll compressor 100, wherein Fig. 4 A has shown the stereogram according to the support 1 in the second embodiment's of the present utility model scroll compressor 100, Fig. 4 B has shown the cross-sectional schematic of support 1, and Fig. 5 has shown the enlarged diagram of the part B among Fig. 4 B.
As Fig. 4 B and shown in Figure 5, fall friction means 101 and comprise support rim 26 and the radial groove 127 that is formed on support rim 26 top surfaces, radial groove 127 is used for lubricant and/or lubricant oil.Support rim 26 is positioned at upper surface 13 support 1, that be used to support moving scroll element 2.Similar with first embodiment, support rim 26 can be formed on the upper surface of support 1, also can be welded on the upper surface of support 1, perhaps is releasably attached on the upper surface of support 1 with bolt.In Fig. 4 A and 4B, support rim 26 forms the annular around center hole 11, but is not limited to this.Thus, can reduce the rubbing contact area between the upper surface 13 of moving scroll element 2 and support 1 by support rim 26, thereby reduced frictional loss, simultaneously, can can further reduce the friction between the upper surface 13 of moving scroll element 2 and support 1 by the sliding bearing that radial groove 127 and interior oiling agent thereof or lubricant oil constitute, thereby reduce the wearing and tearing of moving scroll element 2 and support 1, prolong their working life, reduce noise and energy consumption, improved the usefulness of compressor.
Need to prove, radial groove 127 and support rim 26 must not be provided with simultaneously, for example can directly on the upper surface 13 of support 1, form radial groove 127, by being contained in the oiling agent in the radial groove 127, just can reduce the friction between the upper surface 13 of moving scroll element 2 and support 1, by forming radial groove 127 and support rim 26 simultaneously, can further increase friction, their wearing and tearing and the anti noise of generation that reduces moving scroll element 2 and support 1 support.In addition, radial groove 127 and/or support rim 26 also can be formed on the lower surface of moving scroll element 2, and this can understand easily for those of ordinary skill in the art.
The sectional shape of radial groove 127 also can be any suitable shape, for example ellipse, circle, rectangular, square, and have certain degree of depth, so that hold proper amount of lubricating agent and/or lubricant oil.
When moving scroll element 2 when rotating on the upper surface 13 at support 1 under the driving of bent axle 5 because the rubbing contact area of support rim 26 and the end plate 15 of moving scroll element 2 reduces, thereby make that the degree of wear reduces significantly after using for a long time.In addition, in rotating process, the frictional contact surface starting good lubrication of the oiling agent of being stored in the radial groove 127 when rotating, this has improved the rubbing contact condition in rotary course further.
Thus, what utilization had a said structure falls friction means 101, can improve the contact conditions between the upper surface 13 that moves scroll element 2 and support 1, thereby reduce the friction and wear between moving scroll element 2 and the support 1, reduced the power that scroll compressor 100 is consumed, and because fricative noise.
The 3rd embodiment
Describe below with reference to Fig. 6,7 and to fall friction means 101 according to the 3rd embodiment's of the present utility model scroll compressor 100, wherein Fig. 6 A has shown the stereogram according to the support 1 of the 3rd embodiment's of the present utility model scroll compressor 100, Fig. 6 B has shown the cross-sectional schematic of support 2, and Fig. 7 has shown the enlarged diagram of the portion C among Fig. 6 B.
As shown in Fig. 6 B and Fig. 7, the groove 227 that friction means 101 only comprises on the upper surface 13 that is formed on support 1, is used to support moving scroll element 2 falls, but groove 227 has predetermined width and wherein lubricant and/or lubricant oil, forms sliding bearing thus.The width of groove 227 can design as required, so both can play the effect of kind of lubricant storage, can reduce the rubbing contact area of moving scroll element 2 and upper surface 13 again, and in addition, the sectional shape of groove 227 has no particular limits.
In addition, groove 227 can form circumferential recess 27, also can form radial groove 127, perhaps the combination of circumferential recess 27 and radial groove 127, perhaps other any type of grooves are as long as it is just passable to hold the oiling agent and/or the lubricant oil that are used to lubricate.In addition, groove 227 also can be formed on the lower surface of the end plate 15 that moves scroll element 2.
When moving scroll element 2 when rotating on the upper surface 13 at support 1 under the driving of bent axle 5 because the rubbing contact area between the end plate 15 of upper surface 13 and moving scroll element 2 reduces, thereby make that the degree of wear reduces significantly using afterwards for a long time.In addition, in rotating process, the frictional contact surface starting good lubrication of the oiling agent of being stored in the groove 227 when rotating, this has improved the rubbing contact condition in rotary course further.
Thus, what utilization had a said structure falls friction means 101, can improve the rubbing contact condition between the upper surface 13 that moves scroll element 2 and support 1, thereby friction between moving scroll element 2 of reduction and the support 1 and their wearing and tearing have reduced power and noise that scroll compressor 100 is consumed.
The 4th embodiment
Describe with reference to Fig. 8-11 below and fall friction means 101 according to the 4th embodiment's of the present utility model scroll compressor 100, wherein Fig. 8 has shown the partial schematic sectional view according to the 4th embodiment's of the present utility model scroll compressor 100, Fig. 9 has shown the enlarged diagram of part D among Fig. 8, Figure 10 has shown the part schematic perspective view according to the 4th embodiment's of the present utility model scroll compressor 100, Figure 11 A has shown the schematic perspective view according to the resilient pad in the 4th embodiment's of the present utility model scroll compressor 100, and Figure 11 B has shown the cross-sectional schematic that the line E-E in Figure 11 A is got.
In the 4th embodiment, fall friction means 101 and adopted different design, promptly utilize rolling friction to replace sliding friction between moving scroll element 2 and the support 1 to reduce friction, wearing and tearing and noise between moving scroll element 2 and the support 1 with aforesaid other embodiments.
As shown in Figure 9, friction means 101 falls for being arranged on moving scroll element 2 and being used to support first roller bearing component between the upper surface 13 of support 1 of moving scroll element 2, thus when moving scroll element 2 rotates, moving scroll element 2 can reduce by first roller bearing component and upper surface 13 between friction.
According to an example of the present utility model, first roller bearing component for example can be for thrust ball bearing and is comprised the clutch shaft bearing support 317 that is formed with the first ball receiving bore 318 and be contained in first ball 319 in the first ball receiving bore 318 respectively, first ball 319 for example is 6-12, and along circumferentially evenly distributing, evidence, the quantity of first ball 319 is 6-12 and the circumferentially even better effects if respectively in edge, and for example noise is lower, moves more steady.Yet the utility model is not limited to this, and for example, first roller bearing component can be needle roller thrust bearing or thrust roller bearing.
Here, first roller bearing component should be done broad understanding, for example can on the lower surface of the upper surface of support 1 and/or moving scroll element 2, offer the first ring pockets with certain depth, first ball 319 is contained in the first ring pockets, can not be provided with clutch shaft bearing support 317 this moment, first ball 319 circumferentially rolls in the guiding lower edge of the first ring pockets, the sliding friction of moving between scroll element 2 and the support 1 can be replaced with rolling friction equally.
As shown in Figure 9, fall friction means 101 and may further include first Upper gasket 315 that is fixed on moving scroll element 2 lower surfaces, with be fixed to first lower levelling plate, 316, the first roller bearing components on support 1 upper surface between first Upper gasket 315 and first lower levelling plate 316.Through after a while use, only need to change first Upper gasket 315 and first lower levelling plate 316 thus, and moving scroll element 2 and not wearing and tearing of support 1, thereby provide cost savings.
Thereby first ball 319 is in the restriction that is subjected to the first ball receiving bore 318 in the radial direction, and is subjected to the restriction of first Upper gasket 315 and first lower levelling plate 316 on direction up and down, thereby first ball 319 is along circumferentially rolling.Thus, the sliding movement that moves scroll element 2 relative supports 1 is converted to rolling motion, thereby has greatly reduced the friction between moving scroll element 2 and the support 1.
As shown in Figure 9, the clutch shaft bearing support 317 of first roller bearing component is connected to from upwardly extending first flange 312 in edge of the center hole 311 of support 1.Particularly, as shown in Figure 9, clutch shaft bearing support 317 is arranged between first Upper gasket 315 and first lower levelling plate 316, and clutch shaft bearing support 317 is enclosed within on first flange 312, be formed with the first ball receiving bore 318 on the clutch shaft bearing support 317, and a plurality of first ball 319 is contained in the first ball receiving bore 318.Thus, when moving scroll element 2 rotates, because clutch shaft bearing support 317 is enclosed within on first flange 312, thereby ball is in the restriction that is subjected to the first ball receiving bore 318 in the radial direction, and be subjected to the restriction of first Upper gasket 315 and first lower levelling plate 316 on direction up and down, thereby rolling motion only to take place in first ball 319.Thus, the sliding movement of the upper surface 13 of moving scroll element 2 relative supports 1 is converted to rolling motion, thereby has greatly reduced the friction between the upper surface 13 of moving scroll element 2 relative supports 1.
Further, can be provided with resilient pad 320 between the upper surface 13 of first lower levelling plate 316 and support 1, be used for cushioning the impact that formed compression volume 17 transmits between moving scroll element 2 and the quiet scroll element 3 downwards, shown in Figure 11 A.Figure 11 B has shown the sectional view that the E-E line in Figure 11 A is got, and by Figure 11 B as seen, resilient pad 320 further strengthens the effect of shock absorbing thus along circumferentially forming waveform.
When for example compressed medium enters between moving scroll element 2 and the quiet scroll element 3 formed compression volume 17, can produce huge pressure and collapsing force, thereby can finally cause the destruction of parts such as moving scroll element, quiet scroll element.And in according to this embodiment of the present utility model, this impact can be alleviated or avoid to resilient pad 320.When medium enters in the compression volume 17 and produces immense pressure, pressure promotes moving scroll element 2 and moves downward, because resilient pad 320 has elasticity, so can pressure elasticity pad 320 and make it distortion, thereby avoid the possibility of impact failure, the material of resilient pad 320 can be the spring steel elastomeric material.
First lower levelling plate 316 is assembled on the corrugated resilient pad 320, and first lower levelling plate 316 can have higher intensity, hardness and wear resistance, thereby can have long working life.First Upper gasket 315 is connected to the back side of moving scroll element 2, because moving scroll element 2 is generally gray cast iron or spheroidal graphite cast iron forms, hardness is low, wear no resistance, and the hardness height of first Upper gasket 315, wear resistance is good, thereby can form good match materials between first Upper gasket 315 and the moving scroll element 2, and prolongs the working life of moving scroll element 2.
The assembling process that falls friction means of the first roller bearing component form will be described below.At first, resilient pad 320 is fixed on the upper surface 13 of support 1.Then, order is arranged on first lower levelling plate 316 on the resilient pad 320.Then, place clutch shaft bearing support 317 and first ball 319 is contained in the first ball receiving bore 318.At last first Upper gasket 315 is connected to the back side of end plate 15, assembles thus and fall friction means.
Thus, what utilization had a said structure falls friction means 101, the sliding friction of moving between the upper surface of scroll element 2 and support 1 can be transformed into rolling friction, thereby reduce the friction and wear between moving scroll element 2 and the support 1, scroll compressor 100 energy consumptions have been reduced, reduced noise, the rotation of moving scroll element 2 is steady and smooth more.
Be described in detail by of the rolling contact that is used to support between the upper surface 13 of moving scroll element 2 that is used to support the improvement of the sliding contact between the upper surface 13 of moving scroll element 2 and moving scroll element 2 and support 1 of concrete example above moving scroll element 2 and support 1.Need to prove, the improvement of above-mentioned structure is not limited only to the improvement that is used to support the contact between the upper surface 13 of moving scroll element 2 of moving scroll element 2 and support 1, and this structure can be applied to the improvement of the contact between other adjacent components of scroll compressor as required further.
Describe the lower end 51 of bent axle 5 with reference to Figure 12,13 below and be used to support the improvement of the contact between the lower supporting frame 6 of lower end 51, wherein Figure 12 has shown that Figure 13 has shown the enlarged diagram of part F among Figure 12 according to the cross-sectional schematic at 51 places, lower end of the bent axle 5 of the 5th embodiment's of the present utility model scroll compressor 100.
The upper end 50 of bent axle 5 is connected to moving scroll element 2, is used to drive the rotation of moving scroll element 2.The lower end 51 of bent axle 5 is by lower supporting frame 6 supportings that are fixed in the compressor housing.
As described in the background section, in traditional scroll compressor, bent axle 5 is by lower supporting frame 6 supportings that are installed in the compressor housing, the end face of bent axle 5 lower ends 51 contacts with lower supporting frame 2 direct sliding frictions, frictional loss increases relatively, and friction horsepower is higher, thereby mechanical efficiency descends, and cause the coefficient of refrigeration (Energy Efficiency Ratio) of scroll compressor to reduce, and its energy consumption and noise increase.
In according to scroll compressor 100 of the present utility model, as shown in Figure 12, lower supporting frame 6 comprises rack body 61, from outward extending flange 62 of the upper surface of rack body 61 and the flange 63 that extends downwards from the lower surface of rack body 61.The lower end of crank 5 is passed formed hole in the rack body 61 and is able to that 51 places are supported by the supporting surface 64 of lower supporting frame 6 in the lower end.Wherein supporting surface 64 is flange 63 horizontal upper surfaces towards the horizontal expansion portion 65 that bent axle 5 extends.In addition, second flange 66 extends straight up from an end of horizontal expansion portion 65.
Be provided with second roller bearing component between the end face of the lower end 51 of bent axle 5 and the supporting surface 64 of lower supporting frame 6, thus when bent axle 5 rotates, bent axle 5 can reduce by second roller bearing component and the supporting surface 64 of lower supporting frame 6 between friction.As shown in Figure 13, second roller bearing component comprises second bearing bracket 68 that is formed with the second ball receiving bore 71 and is contained in second ball 70 in the second ball receiving bore 71 respectively.
Similar with first roller bearing component, second roller bearing component for example can be thrust ball bearing, but the utility model is not limited to this.Here, second roller bearing component also should be made broad understanding, for example also can be needle roller thrust bearing or thrust roller bearing, perhaps do not need second bearing bracket 68, but the upper surface of the lower end surface of bent axle 5 and/or lower supporting frame 6 is provided with the second ring pockets of certain depth, and second ball 70 is contained in the second ring pockets and in second ring pockets guiding lower edge and circumferentially rolls.
According to the further embodiment of the utility model, on the supporting surface 64 of lower supporting frame 6, be provided with second lower levelling plate 67, and be arranged between second lower levelling plate 67 and second Upper gasket 69 being provided with second Upper gasket, 69, the second roller bearing components on the lower end surface of bent axle 5.Described second lower levelling plate 67, second Upper gasket 69 are enclosed within respectively on second flange 66.Through after a while use, only need to change second lower levelling plate 67 and second Upper gasket 69 thus, and bent axle 5 and not wearing and tearing of lower supporting frame 6, thereby provide cost savings.
Second lower levelling plate 67 and second Upper gasket 69 can be wear-resistant gasket, so that increase its working life.Further, second bearing bracket 68 of described second roller bearing component is enclosed within on second flange 66, and is formed with the second ball receiving bore 71 on second bearing bracket 68, and a plurality of second balls 70 are contained in the second ball receiving bore 72.Second Upper gasket 69 contacts with second bearing bracket 68 and cooperates with second ball 70.
The assembling process of second roller bearing component will be described below.At first, order is provided with second lower levelling plate 67 on the supporting surface 64.Then, place second bearing bracket 68 and second ball 70 is contained in the second ball receiving bore 71.At last second Upper gasket 69 is fixed on the end face of lower end 51 of bent axle 5, assembles second roller bearing component thus.
Second lower levelling plate 67 has higher intensity, hardness and wear resistance, thereby can have long working life.According to studies have shown that, the number of second ball 70 is 6-12 and when circumferentially evenly distributing, better effects if.
When bent axle 5 rotates, because second bearing bracket 68 is enclosed within on second flange 66, thereby second ball 70 is in the restriction that is subjected to the second ball receiving bore 71 in the radial direction, and be subjected to the restriction of second Upper gasket 69 and second lower levelling plate 67 on direction up and down, thereby second ball 70 can only be along rolling motion.Thus, the sliding movement between bent axle 5 and the supporting surface 64 is converted to rolling motion, thereby has greatly reduced the friction between the bent axle 5 relative supporting surfaces 64, reduced wearing and tearing, increased the life-span, reduced energy consumption and noise, the rotation of bent axle is steady and smooth more.
Described above by the sliding movement between bent axle 5 and the supporting surface 64 being converted to rolling motion and reduced friction and wear between bent axle 5 and the lower supporting frame 6, yet, for the ordinary skill in the art, be appreciated that, the utility model is not limited to this, for example, groove lubricant and/or lubricant oil can be set between bent axle 5 and lower supporting frame 6 reduce friction, no longer be described in detail here in the mode that constitutes sliding bearing.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiments, scope of the present utility model is limited by claims and equivalent thereof.
Claims (14)
1, a kind of scroll compressor comprises:
Compressor housing;
Support, described support is installed in the compressor housing;
Quiet scroll element, described quiet scroll element is fixed in the compressor housing;
Moving scroll element, described moving scroll element is supported on rotationally on the described support and with described quiet scroll element and engages; With
Actuating member, described actuating member link to each other with described moving scroll element and rotate to drive described moving scroll element,
It is characterized in that, be provided with between described moving scroll element and the described support and be used to reduce the friction means that falls that rubs between moving scroll element and the support.
2, scroll compressor according to claim 1 is characterized in that, the described friction means that falls comprises the groove that is used for lubricant and/or lubricant oil on the upper surface that is formed on support and/or on the lower surface of moving scroll element.
3, scroll compressor according to claim 2, it is characterized in that, the described friction means that falls further comprises on the upper surface that is located at support or the support rim on the lower surface of moving scroll element, and wherein said groove is formed on the top surface of described support rim.
According to claim 2 or 3 described scroll compressors, it is characterized in that 4, described groove is radial groove and/or circumferential recess.
5, scroll compressor according to claim 3 is characterized in that, described support rim is formed on the lower surface of the upper surface of support or moving scroll element.
6, scroll compressor according to claim 3 is characterized in that, the top surface of described support rim is through Wear-resistant Treatment.
7, scroll compressor according to claim 1 is characterized in that, the described friction means that falls is first roller bearing component that is located between described moving scroll element and the described rack upper surface.
8, scroll compressor according to claim 7 is characterized in that, the described friction means that falls further comprises:
Be fixed on the moving scroll element first Upper gasket and
Be fixed to first lower levelling plate on the described support,
Wherein first roller bearing component is between described first Upper gasket and described first lower levelling plate.
9, scroll compressor according to claim 8 is characterized in that, further is provided with the resilient pad that is used for shock absorbing between the upper surface of described first lower levelling plate and described support.
10, scroll compressor according to claim 9 is characterized in that, described resilient pad edge is a waveform circumferentially.
11, scroll compressor according to claim 7 is characterized in that, described first roller bearing component comprises the clutch shaft bearing support that is formed with the first ball receiving bore and is contained in the first interior ball of ball receiving bore respectively.
12, scroll compressor according to claim 1, it is characterized in that, described actuating member is a bent axle, the upper end of described bent axle is connected to described moving scroll element, and the lower end of described bent axle is bearing on the lower supporting frame that is installed in the compressor housing, is provided with between the lower end surface of wherein said bent axle and the lower supporting frame to be used to second roller bearing component that reduces to rub between bent axle and the lower supporting frame.
13, scroll compressor according to claim 12 is characterized in that, described second roller bearing component comprises second bearing bracket that is formed with the second ball receiving bore and is contained in the second interior ball of the second ball receiving bore respectively.
14, scroll compressor according to claim 12, it is characterized in that, be provided with second Upper gasket on the lower end surface of described bent axle, and be provided with second lower levelling plate on described lower supporting frame, wherein said second roller bearing component is between second Upper gasket and second lower levelling plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201054361U CN201368023Y (en) | 2009-01-23 | 2009-01-23 | Scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201054361U CN201368023Y (en) | 2009-01-23 | 2009-01-23 | Scroll compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201368023Y true CN201368023Y (en) | 2009-12-23 |
Family
ID=41486916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201054361U Expired - Fee Related CN201368023Y (en) | 2009-01-23 | 2009-01-23 | Scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201368023Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117646723A (en) * | 2024-01-29 | 2024-03-05 | 蜂巢蔚领动力科技(江苏)有限公司 | Anti-rotation structure of scroll compressor and scroll compressor |
-
2009
- 2009-01-23 CN CNU2009201054361U patent/CN201368023Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117646723A (en) * | 2024-01-29 | 2024-03-05 | 蜂巢蔚领动力科技(江苏)有限公司 | Anti-rotation structure of scroll compressor and scroll compressor |
| CN117646723B (en) * | 2024-01-29 | 2024-04-26 | 蜂巢蔚领动力科技(江苏)有限公司 | Anti-rotation structure of scroll compressor and scroll compressor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20170123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |