CN204003469U - Rotary compressor and rotary shaft used for same - Google Patents
Rotary compressor and rotary shaft used for same Download PDFInfo
- Publication number
- CN204003469U CN204003469U CN201420380241.9U CN201420380241U CN204003469U CN 204003469 U CN204003469 U CN 204003469U CN 201420380241 U CN201420380241 U CN 201420380241U CN 204003469 U CN204003469 U CN 204003469U
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- oiling agent
- flow
- running shaft
- runner
- precalculated position
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- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 239000000314 lubricant Substances 0.000 claims abstract description 27
- 239000008041 oiling agent Substances 0.000 claims description 185
- 239000012530 fluid Substances 0.000 claims description 27
- 238000003860 storage Methods 0.000 claims description 17
- 238000002955 isolation Methods 0.000 claims description 13
- 230000008676 import Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Sliding-Contact Bearings (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model relates to a rotary compressor, including casing, setting compression mechanism and motor and the rotation axis in the casing. The rotating shaft extends through a rotor of the motor and is coupled to the compression mechanism to transfer rotational motion of the rotor to the compression mechanism. The rotating shaft includes: a first flow passage provided in the rotating shaft and extending from a first end toward a second end of the rotating shaft to a first predetermined position; and a second flow passage provided in the rotating shaft and extending from the first end toward the second end of the rotating shaft to a second predetermined position different from the first predetermined position, wherein the first flow passage is fluidly isolated from the second flow passage in the rotating shaft. The rotary compressor further includes: a first flow control device configured to control a flow rate of the lubricant flowing into the first flow passage; and a second flow control device configured to control a flow rate of the lubricant flowing into the second flow passage. The utility model discloses still relate to a rotation axis for rotary compressor.
Description
Technical field
The utility model relates to a kind of rotary compressor and a kind of running shaft for this rotary compressor.
Background technique
The content of this part only provides the background information relevant to the disclosure, and it may not form prior art.
Scroll compressor is the one in rotary compressor, and generally includes: housing; Be contained in the compressing mechanism in housing, compressing mechanism can comprise intermeshing moving vortex and determine vortex; And be arranged on the driving mechanism in housing.Driving mechanism can comprise motor and running shaft.Conventionally, for example, running shaft is bearing in the rotor of motor by main bearing and/or base portion bearing (can be described as " bottom bearing " in vertical compressor).Running shaft is driven by motor and will rotatablely move and be passed to moving vortex via for example driving bearing and cam pin.
Relative movement part (for example, moving vortex or bearing) in rotary compressor often needs certain oiling agent to be lubricated to guarantee its normal operation.For this reason, in running shaft, offer oil duct (also referred to as " runner ") with by centrifugal force and/or pump-absorb action by lubricant delivery to each moving element or bearing in rotary compressor.
In the existing fuel feeding scheme of one, in running shaft, only offer vertically an oil duct (conventionally, at least a portion of this oil duct is eccentric), and offering radial hole corresponding to the position for the treatment of lubricated parts, provide oiling agent to the lubricated all parts of needs thus.In this scheme, oiling agent is supplied to all parts vertically successively via a public oil duct, for example, be supplied to successively base portion bearing, main bearing and driving bearing.Therefore, be supplied to the amount of oiling agent of all parts and the pressure reduction of the rotating speed of running shaft and oiling agent is closely related.For example, in vertical rotating formula compressor, in the case of the pressure reduction rotating speed low and running shaft of oiling agent is high, the oiling agent that the parts nearer apart from oil duct entrance obtain is more, and even may can not get oiling agent away from the driving bearing of oil duct entrance.In this case, first compressing mechanism can lose efficacy.On the other hand, in horizontal rotary compressor, because main bearing and driving bearing are positioned at identical level height, oiling agent is more easily supplied to driving bearing.Therefore,, the in the situation that of oiling agent undersupply, main bearing may lose efficacy prior to driving bearing.
In the existing fuel feeding scheme of another kind, one section of public oil duct is set in running shaft oiling agent is introduced in running shaft, then setting up eccentric oil duct separately from public oil duct vertically provides oiling agent to treat lubricated parts for each.In this scheme, in the time that oiling agent enters public oil duct, under the effect of centrifugal force, first oiling agent is supplied to base portion bearing, flow to again afterwards two or more eccentric oil ducts to provide oiling agent to the different lubricated parts for the treatment of.Like this, in the time that the amount of oiling agent of introducing public oil duct is less, may be little on the impact of the oiling agent that enters each eccentric oil duct by centrifugal action.But, when introducing the amount of oiling agent of public oil duct when more, can cause the problem of " string oil ".In this case, the amount that enters the oiling agent of each eccentric oil duct is not to distribute like that as desired, but to all parts randomness supplied too much or very few oiling agent, thereby can affect operation and the life-span of all parts.
In addition, in horizontal rotary compressor, the oil groove of storage oiling agent is positioned at high pressure side and temperature is relatively high, and the amounts of lubrication that is therefore supplied to low voltage side has direct impact to the overall performance of compressor.Such as, the hot oiling agent that is supplied to low voltage side is more, air-breathing overheated will be higher.In addition, thus the motor that the oiling agent of heat can add thermocompressor causes the decrease in efficiency of motor.Therefore the amounts of lubrication that, is supplied to low voltage side must be controlled.
Therefore, need a kind of rotary compressor, can be independently, accurately, controllably its parts distribute lubricant in this rotary compressor.
Model utility content
An object of the present utility model is to provide a kind of rotary compressor, can independently, accurately, controllably provide oiling agent to its moving element or bearing.
Another object of the present utility model is to provide a kind of rotary compressor, can provide equably oiling agent to its moving element or bearing.
Another object of the present utility model is to provide a kind of running shaft for rotary compressor, this running shaft can be independently, accurately, controllably for moving element or the bearing of this rotary compressor provide oiling agent.
The purpose of this utility model is to provide a kind of running shaft for rotary compressor, and this running shaft can be equably for moving element or the bearing of this rotary compressor provide oiling agent.
One or more can realization by following proposal in above-mentioned purpose: a kind of rotary compressor, it comprises housing, is arranged on compressing mechanism and motor and running shaft in housing.Motor comprises the stator that is fixed to housing and the rotor that is positioned at stator.Running shaft extends through the rotor of motor and is attached to compressing mechanism so that rotatablely moving of rotor is passed to compressing mechanism.Running shaft comprises: first flow, and it is arranged in running shaft and from the first end of running shaft and extends to the first precalculated position towards the second end; And second runner, it is arranged in running shaft and from the first end of running shaft and extends to the second precalculated position that is different from the first precalculated position towards the second end, wherein, and first flow and the second runner fluid isolation in running shaft.Rotary compressor also comprises: first flow control gear, and it is configured to control the flow of lubricant that flows into first flow; And second amount control device, it is configured to control the flow of lubricant that flows into the second runner.The utility model also relates to a kind of running shaft for rotary compressor.
In above-mentioned compressor, due to first flow and the isolation of the second runner perfect fluid, therefore flow into fluid in first flow and to flow into fluid in the second runner unaffected each other, the allocation proportion of oiling agent that is supplied to thus first flow and the second runner is substantially constant, that is to say, different operating modes or operational condition are little on the impact of this allocation proportion.In addition, the running shaft of compressor of the present utility model is provided with first flow control gear and second amount control device, therefore can accurately, controllably provide oiling agent to its different parts or bearing.
Preferably, first flow comprises the first flow entrance in sidewall or the end wall of the first end that is arranged on running shaft, the second runner comprises the second runner entrance in sidewall or the end wall of the first end that is arranged on running shaft, wherein, and first flow entrance and the isolation of the second runner inlet fluid.
Preferably, rotary compressor also comprises the first oiling agent supply member at the first end place that is arranged on running shaft, wherein, on the first oiling agent supply member, be provided with the first supply hole and the second supply hole that correspond respectively to first flow entrance and the second runner entrance.The first supply hole and the second supply hole be configured to when running shaft with respect to first oiling agent supply member when rotation respectively with first flow entrance and the second runner entrance off and on fluid be communicated with.
Preferably, the first oiling agent supply member is roughly cup-shaped and has the first recess.The first end of running shaft is contained in the first recess and can rotates with respect to the first oiling agent supply member.
Preferably, rotary compressor also comprises and is roughly the second oiling agent supply member and the oiling agent service of cup-shaped.The second oiling agent supply member has for the second recess of accommodating the first oiling agent supply member with for oiling agent being introduced to the oiling agent import in the second recess.The first oiling agent supply member can radial and axial movement with respect to the second oiling agent supply member but can not be rotated.Oiling agent service is connected with the mode that the oiling agent import of the second oiling agent supply member is communicated with fluid.
Preferably, oiling agent service extends in the oiling agent storage tank in housing, so that by the second recess of lubricant delivery to the second oiling agent supply member in oiling agent storage tank.
Preferably, oiling agent storage tank is positioned at the high pressure side of compressing mechanism, and oiling agent service is configured to the high pressure lubricant in oiling agent storage tank to be delivered in the second recess of the second oiling agent supply member.
Preferably, the first precalculated position is corresponding to the main bearing for supporting rotating shaft, and first flow comprises and leads to the radial hole of main bearing to oiling agent is supplied to main bearing.The second precalculated position is corresponding to the driving bearing for rotatablely moving of running shaft being passed to compressing mechanism, and the second runner comprises and leads to the radial hole of driving bearing to oiling agent is supplied to driving bearing.
Preferably, first flow and/or the second runner further from the first precalculated position and/or the second precalculated position extend through the second end of running shaft, and be provided with spring volume pin or plug along the oiling agent direction that flows at the downstream part in the first precalculated position in first flow.
Preferably, first flow control gear forms by the first supply hole or first flow entrance are configured to measuring hole, or forms by Flow-rate adjustment element being set in the first supply hole or first flow entrance.Second amount control device forms by the second supply hole or the second runner entrance are configured to measuring hole, or forms by Flow-rate adjustment element being set in the second supply hole or the second runner entrance.
Preferably, first flow and the second runner tilt along the mobile direction radially outward of oiling agent.First flow and the second runner can be roughly symmetrical with respect to the central axial line of running shaft.First flow and the second runner can have roughly the same structure and size.
Preferably, first flow control gear and second amount control device are roughly symmetrical with respect to the central axial line of running shaft.First flow control gear and second amount control device can have roughly the same structure and size.
Preferably, on the outer circumferential face in the 3rd precalculated position of the first end of running shaft, be provided with oiling agent and gather portion.Alternatively, oiling agent gathers portion and can be formed as recessed plane or groove.
Alternatively, the 3rd precalculated position is stored in the oiling agent that oiling agent gathers portion base portion bearing is lubricated to utilize corresponding to the base portion bearing for supporting rotating shaft.
According on the other hand of the present utility model, a kind of running shaft for rotary compressor is also provided, this running shaft comprises: first end and the second end relative with first end; First flow, it is arranged in running shaft and from first end and extends to the first precalculated position towards the second end; And second runner, it is arranged in running shaft and from first end and extends to the second precalculated position that is different from the first precalculated position towards the second end, wherein, and first flow and the second runner fluid isolation in running shaft.First flow comprises the first flow entrance in sidewall or the end wall that is arranged on first end, and first flow entrance is configured to measuring hole to control the flow of lubricant that flows into first flow.The second runner comprises the second runner entrance in sidewall or the end wall that is arranged on first end, and the second runner entrance is configured to measuring hole to control the flow of lubricant that flows into the second runner.
Alternatively, the first precalculated position is corresponding to the main bearing for supporting rotating shaft, and first flow comprises and leads to the radial hole of main bearing to oiling agent is supplied to main bearing.The second precalculated position is corresponding to the driving bearing for rotatablely moving of running shaft being passed to compressing mechanism, and the second runner comprises and leads to the radial hole of driving bearing to oiling agent is supplied to driving bearing.
Preferably, first flow and/or the second runner further from the first precalculated position and/or the second precalculated position extend through the second end of running shaft, and be provided with spring volume pin or plug along the oiling agent direction that flows at the downstream part in the first precalculated position in first flow.
Preferably, on the outer circumferential face in the 3rd precalculated position of the first end of running shaft, be provided with oiling agent and gather portion.Alternatively, oiling agent gathers portion and can be formed as recessed plane or groove.
Alternatively, the 3rd precalculated position is stored in the oiling agent that oiling agent gathers portion base portion bearing is lubricated to utilize corresponding to the base portion bearing for supporting rotating shaft.
Explanation in this part general introduction and particular example are only for the object set forth and be not intended to limit the scope of the present disclosure.
Brief description of the drawings
By the description referring to accompanying drawing, it is easier to understand that the feature and advantage of one or several mode of execution of the present utility model will become, wherein:
Fig. 1 is the schematic cross sectional view according to horizontal rotary compressor of the present utility model;
Fig. 2 is according to the schematic cross sectional view of the running shaft of mode of execution of the present utility model;
Fig. 3 is the end elevation of the running shaft of Fig. 2;
Fig. 4 is the local appearance view of the running shaft of Fig. 2;
Fig. 5 is according to the schematic diagram of the oil supply system of mode of execution of the present utility model; And
Fig. 6 is the partial enlarged drawing of the A portion of the oil supply system of Fig. 5.
Embodiment
Description related to the preferred embodiment is only exemplary below, and is never the restriction to the utility model and application or usage.
Below with reference to the embodiment shown in Fig. 1-6, the utility model is elaborated.
Fig. 1 is according to the schematic cross sectional view of the horizontal rotary compressor of mode of execution of the present utility model.As shown in Figure 1, horizontal rotary compressor (hereafter is " compressor ") 1 front cover 14 and the rear end cover 16 that comprises housing 12, is connected with housing 12.Although shown in Fig. 1 is horizontal type scroll compressor, it should be understood that the utility model can be suitable for various types of vertical or horizontal compressors.
Housing 12, front cover 14 and rear end cover 16 form the casing assembly of compressor 1.The casing assembly that it should be understood that compressor can only be made up of housing 12, that is to say, housing 12, front cover 14 and rear end cover 16 can be formed integrally as single parts.In this casing assembly, be equipped with compressing mechanism, driving mechanism and lubricant supply system.Moving element that driving mechanism is compressor, provide driving force in particular for compressing mechanism.Compressing mechanism compresses refrigeration agent (working fluid) under the driving of driving mechanism.Each moving element that lubricant supply system is compressor or bearing provide oiling agent (for example, lubricant oil) so that these parts are carried out to proper lubrication, improve thus overall performance and the working life of whole compressor.It should be noted, illustrate as an example of bearing example according to fuel feeding member of the present utility model, device or system for ease of description herein.In fact any parts that, the utility model is suitable for for there is relative movement provide lubricated.
Driving mechanism comprises motor 70 and running shaft 100.Motor 70 comprises stator 72 and rotor 74.Stator 72 is fixedly attached to housing 12, and rotor 74 is positioned at the inner side of stator 72 and can rotates with respect to stator 72 in the situation that motor 70 is switched on.Running shaft 100 has first end 101 and the second end 103 relative with first end 101, and is supported with the main bearing 20 that is positioned at the second end 103 by the base portion bearing 60 that is positioned at first end 101.Base portion bearing 60 and main bearing 20 are fixedly attached to housing 12.Running shaft 100 extends through the rotor 74 of motor 70, and running shaft 100 is fixedly connected with rotor 74 can be rotated together with driven rotary axle 100 with rotor 74.Like this, can be passed to by rotatablely moving compressing mechanism by running shaft 100.
Compressing mechanism comprises moving vortex 30 and determines vortex 50.Moving vortex 30 comprises end plate 32, is provided with vortex volume 34 on a surface of end plate 32 (being left-hand face in Fig. 1), and on its another surface, (in Fig. 1, being right lateral surface) is provided with general cylindrical shape hub portion 36.Determine vortex 50 and comprise end plate 52 and vortex volume 54.Thereby the vortex volume 34 that moves vortex 30 compresses with the refrigeration agents (working fluid) that the vortex volume 54 of determining vortex 50 engages and forms betwixt the fluid chamber convection current body cavity reducing gradually to central volume from outside in the time moving vortex 30 and determine vortex 50 relative movement.Running shaft 100 can be passed to via the driving bearing 40 that is positioned at the second end 103 the moving vortex 30 of compressing mechanism by rotatablely moving, moving vortex 30 is moved with compression working fluid with respect to determining vortex 50.
In the casing assembly of compressor, by dividing plate 18, the inner space of compressor 1 is separated into high pressure side and low voltage side.Particularly, the space substantially being impaled by housing 12, rear end cover 16 and dividing plate 18 forms low voltage side for sucking the refrigeration agent (working fluid) of low pressure.The space substantially being impaled by dividing plate 18 and front cover 14 forms high pressure side for discharging the high-pressure refrigerant (working fluid) after compression.In the present embodiment, oiling agent storage tank is positioned at high pressure side (that is, being arranged in the space being impaled by front cover 14 and dividing plate 18), and stores the oiling agent for each moving element or the bearing of compressor are lubricated.It should be understood that the utility model is not limited to illustrated structure, oiling agent storage tank also can be positioned at the outside of compressor 1, and via oiling agent service by lubricant delivery to each moving element or bearing in compressor.
Describe according to the running shaft of the compressor of the utility model mode of execution and lubricant supply system referring to Fig. 2 to Fig. 6.Fig. 2 to Fig. 4 shows the running shaft 100 according to the utility model mode of execution; Fig. 5 to Fig. 6 shows according to the lubricant supply system of the utility model mode of execution.
In the illustrated embodiment, the lubricant supply system of compressor 1 comprises oiling agent service 330, the first oiling agent supply member 310, the second oiling agent supply member 320 and running shaft 100.
Referring to Fig. 2 to Fig. 4, in running shaft 100, be provided with vertically two runners, that is, first flow 110 and the second runner 120, to provide oiling agent to main bearing 20 and driving bearing 40 respectively.First flow 110 and the second runner 120 extend through whole running shaft 100 in the mode of fluid isolation from first end 101 to the second end 103." in the mode of fluid isolation " mentioned in this article refers to first flow 110 and the second runner 120 is perfect fluid isolation in whole running shaft 100, that is to say, in running shaft 100, do not have public passage or common aperture with first flow 110 and the second runner 120 equal fluid communication.
In the illustrated embodiment, on the sidewall of the first end 101 of running shaft 100, be provided with the first flow entrance 112 of radial direction through hole as first flow 110.In addition, on the sidewall of the first end 101 of running shaft 100, be also provided with the second runner entrance 122 of another radial direction through hole as the second runner 120.
It should be understood that running shaft of the present utility model is not limited to said structure.For example, first flow 110 and the second runner 120 run through the opening of the end wall of first end 101 can be respectively as first flow entrance 112 and the second runner entrance 122, and without offering radial direction through hole on the sidewall at first end 101.Or first flow 110 and the second runner 120 extend to the radial direction through hole of first end 101 and are communicated with radial direction through hole from the second end 103, but do not extend through the end wall of first end 101.Or, extend through the end wall of first end 101 and be provided with radial direction through hole on the sidewall of first end 101 at first flow 110 and the second runner 120, can select opening on radial direction through hole or end wall as first flow entrance 112 and the second runner entrance 122, and plug or cover cap are set in other radial direction through hole or end wall.
In the illustrated embodiment, first flow 110 and the second runner 120 extend through the end wall of first end 101 and be provided with radial direction through hole on the sidewalls of first end 101, this radial direction through hole is used separately as the first flow entrance 112 of first flow 110 and the second runner entrance 122 of the second runner 120, is provided with the member 310 as cover cap at first end 101 places.
First flow 110 and the second runner 120 tilt along the mobile direction radially outward of oiling agent.Can radial hole be set oiling agent is supplied to this parts in for example, the position corresponding to treating lubricating component (, the main bearing 20 in illustrated embodiment and/or driving bearing 40) of running shaft.In conjunction with Fig. 1, the driving bearing 40 that is provided with oiling agent by the second runner 120 is arranged on the end wall place of the second end 103 of running shaft 100, and be positioned at the axial inner side of driving bearing 40 by the main bearing 20 that first flow 110 is provided with oiling agent,, main bearing 20 has certain distance apart from the end wall of the second end 103.In this case, in order better oiling agent to be guided to main bearing 20, can arranging in the position in main bearing 20 downstreams and rolling up pin or plug 113 along the mobile direction of oiling agent in first flow 110.Be understandable that, first flow 110 and/or the second runner 120 needn't extend through the second end 103 of running shaft 110, but can extend to corresponding to the position for the treatment of lubricating component.
Referring to Fig. 5 and Fig. 6, the first oiling agent supply member 310 is roughly cup-shaped and has the first recess 316.The first recess 316 is configured to the first end 101 of accommodating running shaft 100 therein and has the inner peripheral surface matching with the outer circumferential face of first end 101 make running shaft 100 to reveal minimum mode with friction and oiling agent to rotate with respect to the first oiling agent supply member 310.
The second oiling agent supply member 320 is roughly cup-shaped and has the second recess 326.The second recess 326 is configured to accommodating the first oiling agent supply member 310 therein, makes to be formed with oiling agent storage space between the internal surface of the second recess 326 and the outer surface of the first oiling agent supply member 310.The second oiling agent supply member 320 can be fixed to base portion bearing 60 or housing in any suitable manner.In addition, the first oiling agent supply member 310 and the second oiling agent supply member 320 can be provided with and be fitted to each other to limit relative rotary motion therebetween but allow to axial and the limited features of radial motion.
On the second oiling agent supply member 320, be provided with oiling agent import 323.Oiling agent import 323 can be arranged on any suitable position of the second oiling agent supply member 320.Connect oiling agent import 323 and oiling agent service 330 by pipe joint, and oiling agent service 330 extends in the oiling agent storage tank in casing assembly, make it possible to the oiling agent in oiling agent storage tank to be fed in the oiling agent storage space between the first oiling agent supply member 310 and the second oiling agent supply member 320 via pipe joint and oiling agent import 323 by oiling agent service 330.
On the first oiling agent supply member 310, can be provided with the first supply hole (not shown) and the second supply hole 312 that correspond respectively to first flow entrance 112 and the second runner entrance 122.In the illustrated embodiment, first flow entrance 112 and the second runner entrance 122 are for being arranged on the radial direction through hole on the sidewall of first end 101, therefore, the first supply hole and the second supply hole 312 are for being arranged on the radial direction through hole in the cylindrical-shaped main body of the first oiling agent supply member 310." correspondence " herein mentioned refers in the time that running shaft 100 rotates with respect to the first oiling agent supply member 310, thereby the first supply hole can be aimed at off and on to realize fluid therebetween with first flow entrance 112 and be communicated with the oiling agent being stored in oiling agent storage space is supplied in first flow 110 off and on, thereby the second supply hole 312 can be aimed at off and on to realize fluid therebetween with the second runner entrance 122 and is communicated with the oiling agent being stored in oiling agent storage space is supplied in the second runner 120 off and on.
In order to regulate the amount that enters the oiling agent in first flow 110, first flow entrance 112 or the first supply hole can be configured to measuring hole, and the second runner entrance 122 or the second supply hole 312 are configured to measuring hole.Wherein, the size of measuring hole can be according to expecting that the amount that enters the oiling agent in runner entrance determines.In the time expecting to supply the oiling agent of same amount to main bearing 20 and driving bearing 40, can make the size of measuring hole identical with structure.
In addition, because the first oiling agent supply member 310 can be pressed against on the end face of running shaft 100 under the effect of the oil pressure of supplying with, thereby seal the end face opening of first flow 110 and the second runner 120, so be supplied to the size that two amounts of lubrication in runner depend on the measuring hole being made up of first flow entrance 112 and the second runner entrance 122 and the first supply hole and the second supply hole 312 completely, thus can be controllably, accurately, independently to two runners, 110 and 120 supply of lubricant.
Or, can flow regulator be set at first flow entrance 112 or the first supply hole place, and at the second runner entrance 122 or the second supply hole 312 places, flow regulator is also set, the amount of the oiling agent that enters first flow 110 and the second runner 120 can be regulated respectively thus, and then the amount of the oiling agent that is supplied to main bearing 20 and driving bearing 40 can be regulated respectively.
In said structure, because first flow 110 and the second runner 120 are perfect fluid isolation in whole running shaft 100, therefore can be respectively independently, controllably regulate the amount of the oiling agent that enters first flow 110 and the second runner 120, and then can be respectively independently, controllably regulate the amount of the oiling agent that is supplied to main bearing 20 and driving bearing 40.That is to say, in the time expecting to be provided with moderate lubrication agent to the main bearing 20 of compressor, only need to control the amount of the oiling agent that enters first flow 110.Equally, in the time expecting to be provided with moderate lubrication agent to the driving bearing of compressor, only need to control the amount of the oiling agent that enters the second runner 120.Like this, not only can simplify the runner design of running shaft 100, and can more accurately control the amount of the oiling agent of certain parts of compressor 1 to be supplied to.In addition, because the amount of each moving element of compressor or the oiling agent of bearing that is supplied to is independent controlled, therefore can make each moving element or bearing move under its best lubricating condition, can extend thus the life-span of each moving element or bearing and the life-span of whole compressor, and contribute to reduce the oil recycle ratio of whole compressor assembly.Therefore the running shaft with this structure also has application area widely.
For via public oil duct or public oilhole by lubricant dispense to for the existing structure of each runner in running shaft, in the time that the factors such as the pressure reduction of the rotating speed such as running shaft or oiling agent change, the allocation proportion that is supplied to the oiling agent of each runner changes possibly, like this, can cause being supplied to that the oiling agent of certain parts is on the high side and to be supplied to the oiling agent of another parts on the low side.By contrast, there is more the structure of simplifying according to running shaft of the present utility model, manufacture cost still less, can more preferably regulate and control to be supplied to the amount of the oiling agent of all parts.
In addition,, in conjunction with Fig. 1, base portion bearing 60 is arranged on the first end 101 of running shaft 100.Can on the outer circumferential face of first end 101, be provided with oiling agent corresponding to the position of base portion bearing 60 and gather portion, oiling agent gathers portion and first flow and the isolation of the second runner current-sharing body.As shown in Figure 4, to gather portion can be elongate recesses 130 to this oiling agent.In addition, to gather portion can also be the plane that the material by removing on the outer circumferential face of first end 101 forms to this oiling agent.Can determine that oiling agent gathers size and the structure of portion according to the amount of expecting the oiling agent that is supplied to base portion bearing 60.In other words, the oiling agent that is not limited to given shape or structure according to running shaft of the present utility model gathers portion, and oiling agent gathers portion and can change according to applicable cases at the aspect such as structure, size.
In one embodiment, first flow 110 and the second runner 120 can be arranged to the central axial line symmetry with respect to running shaft 100, and can have essentially identical size, this provides the situation of oiling agent of same amount advantageous particularly for expecting to main bearing and driving bearing.
To testing according to the compressor shown in Fig. 1 of the present utility model.Make to move under the operating mode of multiple different oiling agent pressure reduction and multiple different rotary axle rotating speed according to compressor of the present utility model, the result recording shows that the allocation proportion of the oiling agent that is supplied to main bearing and driving bearing all approaches 1.This explanation: for the compressor shown in Fig. 1, the allocation proportion that is supplied to the oiling agent of its all parts is not subject to the impact of the pressure reduction of oiling agent and the rotating speed of running shaft substantially.Therefore,, by the runner of fluid isolation is set in running shaft, can improve the distribution effects of the oiling agent that is supplied to all parts in compressor.
Although described various mode of execution of the present utility model in detail at this, but should be appreciated that the utility model is not limited to the embodiment of describing in detail and illustrating here, in the situation that not departing from essence of the present utility model and scope, can be realized by those skilled in the art other modification and variant.All these modification and variant all fall in scope of the present utility model.And all members described here can be replaced by the member being equal in other technologies.
Claims (24)
1. a rotary compressor (1), comprising:
Housing (12);
Be arranged on the compressing mechanism in described housing (12);
Be arranged on the motor (70) in described housing (12), described motor (70) comprises the stator (72) that is fixed to described housing (12) and the rotor (74) that is positioned at described stator (72);
Running shaft (100), described running shaft (100) extends through the described rotor (74) of described motor (70) and is attached to described compressing mechanism so that rotatablely moving of described rotor (74) is passed to described compressing mechanism;
It is characterized in that,
Described running shaft (100) comprising:
First flow (110), described first flow (110) is arranged in described running shaft (100) and from the first end (101) of described running shaft (100) and extends to the first precalculated position towards the second end (103); And
The second runner (120), described the second runner (120) is arranged in described running shaft (100) and from the first end (101) of described running shaft (100) and extends to the second precalculated position that is different from described the first precalculated position towards the second end (103), wherein, described first flow (110) and described the second runner (120) fluid isolation in described running shaft (100)
Described rotary compressor (1) also comprises:
First flow control gear, described first flow control gear is configured to control the flow of lubricant that flows into described first flow (110); And
Second amount control device, described second amount control device is configured to control the flow of lubricant that flows into described the second runner (120).
2. rotary compressor as claimed in claim 1 (1), wherein, described first flow (110) comprises the first flow entrance (112) in sidewall or the end wall of the described first end (101) that is arranged on described running shaft (100), described the second runner (120) comprises the second runner entrance (122) in sidewall or the end wall of the described first end (101) that is arranged on described running shaft (100), wherein, described first flow entrance (112) and described the second runner entrance (122) fluid isolation.
3. rotary compressor as claimed in claim 2 (1), also comprise and be arranged on the first oiling agent supply member (310) that the described first end (101) of described running shaft (100) is located, wherein, on described the first oiling agent supply member (310), be provided with the first supply hole and the second supply hole (312) that correspond respectively to described first flow entrance (112) and described the second runner entrance (122), described the first supply hole and described the second supply hole (312) be configured to when described running shaft (100) with respect to described first oiling agent supply member (310) when rotation respectively with described first flow entrance (112) and described the second runner entrance (122) off and on fluid be communicated with.
4. rotary compressor as claimed in claim 3 (1), wherein, described the first oiling agent supply member (310) is roughly cup-shaped and has the first recess (316), and the described first end (101) of described running shaft (100) is contained in described the first recess (316) and can be with respect to described the first oiling agent supply member (310) rotation.
5. rotary compressor as claimed in claim 4 (1), also comprises:
Be roughly the second oiling agent supply member (320) of cup-shaped, described the second oiling agent supply member (320) has for second recess (326) of accommodating described the first oiling agent supply member (310) with for oiling agent being introduced to the oiling agent import (323) in described the second recess (326), and described the first oiling agent supply member (310) can radial and axial movement with respect to described the second oiling agent supply member (320) but can not be rotated; And
Oiling agent service (330), described oiling agent service (330) is connected with the mode that the described oiling agent import (323) of described the second oiling agent supply member (320) is communicated with fluid.
6. rotary compressor as claimed in claim 5 (1), wherein, described oiling agent service (330) extends in the oiling agent storage tank in described housing (12), so as by the lubricant delivery in described oiling agent storage tank to described second recess (326) of described the second oiling agent supply member (320).
7. rotary compressor as claimed in claim 6 (1), wherein, described oiling agent storage tank is positioned at the high pressure side of compressing mechanism, and described oiling agent service (330) is configured to the high pressure lubricant in described oiling agent storage tank to be delivered in described second recess (326) of described the second oiling agent supply member (320).
8. rotary compressor as claimed in claim 1 (1), wherein, described the first precalculated position is corresponding to the main bearing for supporting described running shaft (100) (20), and described first flow (110) comprises and leads to the radial hole of described main bearing (20) to oiling agent is supplied to described main bearing (20)
Described the second precalculated position is corresponding to the driving bearing (40) for rotatablely moving of described running shaft (100) being passed to described compressing mechanism, and described the second runner (120) comprises and leads to the radial hole of described driving bearing (40) to oiling agent is supplied to described driving bearing (40).
9. rotary compressor as claimed in claim 8 (1), wherein, described first flow (110) and/or described the second runner (120) further from described the first precalculated position and/or described the second precalculated position extend through the second end (103) of described running shaft (100), and be provided with spring volume pin or plug (113) along the oiling agent direction that flows at the downstream part in described the first precalculated position in first flow (110).
10. rotary compressor as claimed in claim 3 (1), wherein, described first flow control gear forms by described the first supply hole or described first flow entrance (112) are configured to measuring hole, or forms by Flow-rate adjustment element being set in described the first supply hole or described first flow entrance (112); And
Described second amount control device forms by described the second supply hole (312) or described the second runner entrance (122) are configured to measuring hole, or forms by Flow-rate adjustment element being set in described the second supply hole (312) or described the second runner entrance (122).
11. rotary compressors as claimed in claim 9 (1), wherein, described first flow (110) and described the second runner (120) tilt along the mobile direction radially outward of oiling agent.
12. rotary compressors as claimed in claim 11 (1), wherein, described first flow (110) and described the second runner (120) are roughly symmetrical with respect to the central axial line of described running shaft (100).
13. rotary compressors as claimed in claim 12 (1), wherein, described first flow (110) and described the second runner (120) have roughly the same structure and size.
14. rotary compressors as claimed in claim 10 (1), wherein, described first flow control gear and described second amount control device are roughly symmetrical with respect to the central axial line of described running shaft (100).
15. rotary compressors as claimed in claim 14 (1), wherein, described first flow control gear and described second amount control device have roughly the same structure and size.
16. rotary compressors (1) as described in any one in claim 1 to 15, wherein, on the outer circumferential face in the 3rd precalculated position of the described first end (101) of described running shaft (100), be provided with oiling agent and gather portion.
17. rotary compressors as claimed in claim 16 (1), wherein, the described oiling agent portion of gathering is formed as recessed plane or groove.
18. rotary compressors as claimed in claim 16 (1), wherein, described the 3rd precalculated position is stored in the oiling agent that described oiling agent gathers portion described base portion bearing (60) is lubricated to utilize corresponding to the base portion bearing (60) for supporting described running shaft (100).
19. 1 kinds of running shafts for rotary compressor (1) (100), is characterized in that, described running shaft (100) comprising:
First end (101) and the second end (103) relative with described first end (101);
First flow (110), described first flow (110) is arranged in described running shaft (100) and from described first end (101) and extends to the first precalculated position towards described the second end (103); And
The second runner (120), described the second runner (120) is arranged on and in described running shaft (100) and from described first end (101), extends to the second precalculated position that is different from described the first precalculated position towards described the second end (103), wherein, described first flow (110) and described the second runner (120) fluid isolation in described running shaft (100)
Described first flow (110) comprises the first flow entrance (112) in sidewall or the end wall that is arranged on described first end (101), described first flow entrance (112) is configured to measuring hole to control the flow of lubricant that flows into described first flow (110)
Described the second runner (120) comprises the second runner entrance (122) in sidewall or the end wall that is arranged on described first end (101), and described the second runner entrance (122) is configured to measuring hole to control the flow of lubricant that flows into described the second runner (120).
20. running shafts for rotary compressor (1) as claimed in claim 19 (100), wherein, described the first precalculated position is corresponding to the main bearing for supporting described running shaft (100) (20), and described first flow (110) comprises and leads to the radial hole of described main bearing (20) to oiling agent is supplied to described main bearing (20)
Described the second precalculated position is corresponding to the driving bearing (40) for rotatablely moving of described running shaft (100) being passed to described compressing mechanism, and described the second runner (120) comprises and leads to the radial hole of described driving bearing (40) to oiling agent is supplied to described driving bearing (40).
21. running shafts for rotary compressor (1) as claimed in claim 20 (100), wherein, described first flow (110) and/or described the second runner (120) further from described the first precalculated position and/or described the second precalculated position extend through the second end (103) of described running shaft (100), and be provided with spring volume pin or plug (113) along the oiling agent direction that flows at the downstream part in described the first precalculated position in described first flow (110).
22. running shafts for rotary compressor (1) (100) as described in any one in claim 19 to 21, wherein, on the outer circumferential face in the 3rd precalculated position of the described first end (101) of described running shaft (100), be provided with oiling agent and gather portion.
23. rotary compressors as claimed in claim 22 (1), wherein, the described oiling agent portion of gathering is formed as recessed plane or groove (130).
24. rotary compressors as claimed in claim 22 (1), wherein, described the 3rd precalculated position is stored in the oiling agent that described oiling agent gathers portion described base portion bearing (60) is lubricated to utilize corresponding to the base portion bearing (60) for supporting described running shaft (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420380241.9U CN204003469U (en) | 2014-07-10 | 2014-07-10 | Rotary compressor and rotary shaft used for same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420380241.9U CN204003469U (en) | 2014-07-10 | 2014-07-10 | Rotary compressor and rotary shaft used for same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003469U true CN204003469U (en) | 2014-12-10 |
Family
ID=52043476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420380241.9U Expired - Lifetime CN204003469U (en) | 2014-07-10 | 2014-07-10 | Rotary compressor and rotary shaft used for same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003469U (en) |
-
2014
- 2014-07-10 CN CN201420380241.9U patent/CN204003469U/en not_active Expired - Lifetime
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