CN102767623A - External work output transmission and connection device - Google Patents
External work output transmission and connection device Download PDFInfo
- Publication number
- CN102767623A CN102767623A CN2012102278718A CN201210227871A CN102767623A CN 102767623 A CN102767623 A CN 102767623A CN 2012102278718 A CN2012102278718 A CN 2012102278718A CN 201210227871 A CN201210227871 A CN 201210227871A CN 102767623 A CN102767623 A CN 102767623A
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- Prior art keywords
- transmission shaft
- sealing
- chamber
- bearing
- seal ring
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 51
- 238000007789 sealing Methods 0.000 claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 238000012856 packing Methods 0.000 claims description 44
- 210000004907 gland Anatomy 0.000 claims description 19
- 230000008878 coupling Effects 0.000 claims description 17
- 238000010168 coupling process Methods 0.000 claims description 17
- 238000005859 coupling reaction Methods 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 description 9
- 230000008859 change Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000725 suspension Substances 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009102 absorption Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
An external work output transmission and connection device of a turbine expansion engine belongs to the technical field of low-temperature equipment, and includes a connection sleeve provided with a sleeve cavity as well as bearings arranged at the left end and the right end respectively, a pair of flange plates fixed at the left end and the right end of the connection sleeve respectively and provided with seal ring seat cavities at the center respectively, seal ring seats arranged in the seal ring seat cavities, and a transmission shaft supported on a bearing, matched with the seal ring seats and provided with the middle part positioned in the sleeve cavity. The external work output transmission and connection device is characterized in that the center parts of the seal ring seats form a seal mechanism cavity; a stack ring extends from the centers of one sides of the seal ring seats, opposite to the bearing; a snap ring groove is arranged in the inner wall of the stack ring and formed in the peripheral direction surrounding the inner wall of the stack ring; and a transmission shaft random sealing mechanism is arranged in the seal mechanism cavity in a matching manner. The external work output transmission and connection device has the advantages of saving resources, reducing cost and improving installing efficiency.
Description
Technical field
The invention belongs to the Cryo Equipment technical field, be specifically related to a kind of external work output transmission joint of turbo-expander
Background technique
decompressor is divided into two types usually by its motion mode and structural type: one is Piston Expander; Two is turbo-expander.Owing to having characteristics such as flow is big, simple in structure, volume is little, efficient is high and grow service cycle for Piston Expander, turbo-expander is widely used in the various Cryo Equipments.
such as industry the reason of knowledge; Turbo-expander be when expanding with gas speed can variation and use the machinery that transmits energy; Its energy delivered is also claimed external work; External work usually by the equipment that connects that is connected with impeller like absorptions such as the generator that is not limited to, blower, water pump, pressure-increasing machine, oil brakes, and be aforesaid external work output transmission joint between impeller and the transition apparatus that connects between the equipment.In disclosed Chinese patent document, is no lack of technical information about turbo-expander; Slightly recommend to have with what give an example that " miniature turbo-expander ", CN2185339Y provide " gas suspension formula pottery cryogenic turboexpander ", the CN200955408Y bulletin has " turbine expansion unit ", CN201367920Y to disclose " turbo-expander " and CN202039906U has recommended " a kind of gas-bearing expansion turbine " like CN2388351Y, or the like.
such as industry knowledge; The watt level of turbo-expander is different; What adapt with it is that the specification of aforesaid external work output transmission joint is also different; More particularly, need to export the corresponding diameter of axle of transmission shaft of transmission joint by external work supporting with it for the turbo-expander of different capacity.Yet; After the diameter of axle of transmission shaft changes, can cause that industry does not hope to face but have in the face of and a series of Transform Type design troubles that must dispose, so-called a series of Transform Type design troubles for example need be changed promptly a pair of flange plate (the industry custom is claimed big flange or left and right flanges) that design again is positioned at the coupling sleeve two ends, a pair of lubricant oil of avoiding being used for cardan-shaft suspension mechanism (bearing) is lubricated that is used for the cardan-shaft suspension mechanism of supporting drive shaft and is used for transmission shaft is implemented sealing towards sealing mechanism of transmission the tip of the axis infiltration or the like.
are in above-mentioned factor; To flange plate and to the work of design again that is arranged at the packing holder in the packing holder chamber that flange plate central authorities offer is the most thorny; Because be prone to cause the wasting of resources because of abandoning original flange plate and packing holder on the one hand, run counter to the economizing economy spirit that the present whole society advocates; Increase cost on the other hand; The tediously long efficient that influences of time that spends owing to designing institute on the one hand again.Yet as if industry is got used to this disposal pattern and is not seen that the plan that proposes to be rich in the challenge improvement is arranged at present.Especially all do not disclosing the referential teachings that is able to eliminate this unfavorable factor in disclosed state, inside and outside patent and the non-patent literature up to now.For this reason, the applicant has done positive and useful design, the technological scheme that will introduce below having formed
Summary of the invention
task of the present invention is to provide a kind of to be had excellent generalization degree and need not the diameter of axle because of transmission shaft and change and design flange plate again and change the external work output transmission joint that packing holder is used the turbo-expander that economizes on resources, reduces cost and raise the efficiency.
task of the present invention is accomplished like this; A kind of external work output transmission joint of turbo-expander; Comprise have the sleeve chamber and left end and right-hand member respectively be provided with the coupling sleeve of a bearing, the left end that is separately fixed at coupling sleeve and right-hand member and middle position respectively have a packing holder chamber a pair of flange plate, be arranged on the packing holder in each packing holder chamber and two ends are bearing on the bearing rotationally and match with packing holder and the middle part is positioned at the transmission shaft in sleeve chamber; Characteristics are: the side that the central authorities of described packing holder constitute a selfsealings ring support is through to the sealing mechanism chamber of opposite side; And be extended with a stack circle at the accent of sealing ring support back to the central authorities of a side of described bearing around the sealing mechanism chamber; On the inwall of this stack circle and around the circumferencial direction of the inwall of stack circle, offer an annular groove, what be equipped with in the sealing mechanism chamber that the diameter of axle with described transmission shaft changes is used for the transmission shaft of the end seal of transmission shaft sealing mechanism at random.
are in a concrete embodiment of the present invention; Described transmission shaft sealing mechanism at random comprises stuffing box gland, first, second seal ring and snap ring; Stuffing box gland is placed in the described sealing mechanism chamber, and the inwall in the outer wall of stuffing box gland and sealing mechanism chamber constitutes sealing, constitutes one first sealing ring cavity in a side of the sealing mantle cavity of stuffing box gland; And opposite side constitutes one second sealing ring cavity; First seal ring is arranged in the first sealing ring cavity, and second seal ring is arranged in the second sealing ring cavity, and snap ring snaps in the described annular groove; And contact with the end face of stuffing box gland, the end of described transmission shaft is sealed and matched with the sealing mantle cavity.
technological scheme provided by the invention has following technique effect: when the power of turbo-expander changes and changes the diameter of axle of transmission shaft; As long as change not only that diameter with the end of transmission shaft adapts but with the diameter in sealing mechanism chamber be complementary with the mobility sealing mechanism; Thereby need not flange plate and packing holder are designed again and change; Not only help to economize on resources, reduce cost, and can improve installation efficiency.
Description of drawings
Fig. 1 is the embodiments of the invention structural drawing.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is an application examples schematic representation of the present invention.
Embodiment
can be expressly understood technical spirit of the present invention and beneficial effect more for the auditor that the makes Patent Office especially public; The claimant general elaborates with embodiment's mode below; But the description to embodiment all is not the restriction to the present invention program, any according to the present invention design done only for pro forma but not substantial equivalent transformation all should be regarded as technological scheme category of the present invention.
Embodiment:
see also Fig. 1 and Fig. 2; Provided a coupling sleeve 1; The two ends of this coupling sleeve 1 are that left and right end respectively is provided with a fastening flange circle 13 to extending out, and on each fastening flange circle 13, offer one group of flange plate fixed hole 131 with the interval state.At the two ends of coupling sleeve 1 and separately the position near corresponding fastening flange circle 13 offers an inlet hole 14; Preferred scheme be with a pair of inlet hole 14 be opened in coupling sleeve 1 under the user mode towards on the two ends of a side; Come from compressed air source unit for example the device of air compressor or suction booster and so on pressure air or claim that pressurized air introduces inlet hole 14 by the road; Each inlet hole 14 have one be used for pressure air towards below the direction of the packing holder 3 that also will describe draw the bleed road 141 that send, that is to say that bleed road 141 extends towards the direction of packing holder 3.Again, on the coupling sleeve 1 and under the user mode towards under the two ends at position respectively offer a return-air hole 15, each return-air hole 15 has one equally towards return-air road 151 that the direction of packing holder 3 is extended (specifically can referring to Fig. 2).And; The two ends of coupling sleeve 1 and preferably under the user mode towards on a side offer an oil inlet hole 16; Oil inlet hole 16 has the oil input channel 161 that extends towards the direction of bearing 12; And also respectively offer one at the two ends of coupling sleeve 1 and draw oilhole 17, respectively draw oilhole 17 and communicate with the sleeve chamber 11 of coupling sleeve 1.Also, under coupling sleeve 1 user mode towards under a side offer one and be used for entering into the spill port 18 that lubricant oil in the sleeve chamber 11 causes outside fuel tank by the road.By shown in Figure 1, aforesaid bearing 12 adopts bearing fixing screw 121 to be fixed in the bearing bore at coupling sleeve 1 two ends.
a pair of flange plate 2 is respectively fixing with the flange plate fixed hole 131 of the fastening flange circle 13 of aforesaid coupling sleeve 1 through one group of flange plate set screw 22; Central position at flange plate 2 constitutes a packing holder chamber 21, and offers one group in the edge of the circumferencial direction of left flange plate 2 with the interval state and be used for and the fixing flange plate fixed hole 23 of spiral case 7 (Fig. 3 shows) of decompressor.
Fig. 1 and Fig. 2 please be continued to see in
; Because it is identical being arranged on the structure of the packing holder 3 in the packing holder chamber 21 of packing holder 3 and the flange plate 23 that is arranged on the right in the packing holder chamber 21 of flange plate 2 on the left side, so the claimant only specifies to the packing holders in the packing holder chamber that is arranged at the left side 21 3 below.
Preset screw hole is fixed on
packing holder 3 usefulness packing holder set screws 33 and the aforesaid coupling sleeve 1; A side that offers selfsealings ring support 3 in the central authorities of sealing ring support 3 is through to the sealing mechanism chamber 31 of opposite side; Packing holder 3 back to a side of aforesaid bearing 12 and around the circumferencial direction in sealing mechanism chamber 31 constitute one be projected on the surface of packing holder 3 stack circle 32, and offer an annular groove 321 at the inwall of stack circle 32.Shown in figure, on packing holder 3, also offer the packing holder intake duct 34 that communicates with aforesaid bleed road 141, and offer the packing holder air outlet channel 35 that communicates with aforesaid return-air road 151.Be provided with one group of seal ring 36 that is used for constituting sealing with the chamber wall in packing holder chamber 21 at the edge of packing holder 3.
Matching with bearing 12 and packing holder 3 in the same manner in the two ends of
transmission shaft 4, and respectively constitutes a disc 41 at the two ends of transmission shaft 4.
Fig. 2 please be seen by emphasis in
; Aforesaid bearing 12 is respectively passed with packing holder 3 and lean out outside the packing holder 3 in the two ends of transmission shaft 4; The bearing housing that is positioned at disc 41 1 sides of transmission shaft 4 cooperates 42 (Fig. 1 shows) of section to cooperate with bearing 12, and the stuffing box gland cooperation sections 43 that is positioned at disc 41 opposite sides matches with packing holder 3.Between bearing 12 and packing holder 3 and in position, constitute an oil clearance 6 corresponding to disc 41.The slot of lubricant oil between bearing 12 and transmission shaft 4 that enters in the bearing 12 gets into oil clearance 6; The lubricant oil that enters into oil clearance 6 is introduced sleeve chamber 11 through drawing oilhole 17; And then introduce in the fuel tank by the pipeline that connects with spill port 18, specifically can be labeled in the arrow of the flow direction of the expression lubricant oil among Fig. 2 referring to the claimant.
Fig. 1 please be seen by emphasis in
; Main points as technological scheme provided by the invention: in the sealing mechanism chamber 31 of aforesaid a pair of packing holder 3, respectively be provided with transmission shaft sealing mechanism 5 at random; Preferably but not the transmission shaft that definitely is limited at random sealing mechanism 5 comprise stuffing box gland 51, first, second seal ring 52,53 and snap ring 54; Stuffing box gland 51 is placed in the aforesaid sealing mechanism chamber 31; The inwall in the outer wall of stuffing box gland 51 and sealing mechanism chamber 31 forms sealing; In the sealing mantle cavity 511 of stuffing box gland 51, offer pore 5113, this pore 5113 communicates with air drain 512 on the outer wall that is formed in stuffing box gland 51, and air drain 512 communicates with aforesaid packing holder intake duct 34 and seal ring air outlet channel 35.Side at sealing mantle cavity 511 constitutes one first sealing ring cavity 5111; And opposite side constitutes one second sealing ring cavity 5112; First seal ring 52 is located in the first sealing ring cavity 5111; Second seal ring 53 is located in the second sealing ring cavity 5112, and snap ring 54 snaps in the aforesaid annular groove 321 and with the end face of stuffing box gland 51 and contacts.Each is sealed and matched the two ends of aforesaid transmission shaft 4 with sealing mantle cavity 511 after passing bearing 12.
are when the power of turbo-expander changes; The diameter of axle of transmission shaft 4 is also corresponding to change; Just the turbo-expander of different capacity has the transmission shaft 4 with the matched different diameters of axle of its impeller, and therefore the external work of turbo-expander provided by the invention output transmission joint has the adaptability that the diameter of axle of good reply transmission shaft 4 changes.For example when the diameter of axle of transmission shaft 4 changes, as long as conversion stuffing box gland 51, first seal ring 52 and second seal ring 53.Particularly, launch not only adaptive but also just can ensure fiting effect with stuffing box gland 51 that the sealing mechanism chamber 31 of packing holder 3 matches and need not to resemble and change flange plate 2 and packing holder 3 prior art with transmission shaft 4.
Fig. 2 is still seen in
; Because aforesaid seal ring intake duct 34 communicates with intake duct 141, again owing to seal ring intake duct 34 corresponding to aforesaid air drain 512, promptly communicate with air drain 512; Also owing to air drain 512 communicates with sealing mantle cavity 512; Therefore under the pressure effect of air-flow, pressure air can be divided into two-way, and one the tunnel plays the lubricant oil that stops in the aforesaid oil clearance 6 permeates towards the direction that deviates from oil clearance 6; That is to say to force lubricant oil to flow and avoid lubricant oil to ooze towards the end of transmission shaft 4 and let out to the direction of oil clearance 6, another road air-flow stops the gas invasion and attack bearing 12 (bearing 12 of left end) that comes from decompressor.Redundant pressure air is drawn through packing holder air outlet channel 35.With regard to right-hand member, be divided into wherein a tunnel playing equally and stop the effect of lubricant oil in the air-flow of two-way, and another road is played and is prevented that outside steam from invading the effect (bearing 12 of right-hand member) of bearing 12 towards the direction infiltration that deviates from oil clearance 6.
Application examples:
See also Fig. 3; During use one group of bolt 231 of a flange plate 2 usefulness on the left side in the aforesaid a pair of flange plate 2 of the present invention is fixedly connected at the spiral case 7 corresponding to the turbo-expander of aforesaid left flange plate fixed hole 23; And the left end of transmission shaft 4 is connected with the impeller of turbo-expander; The other end of transmission shaft 4 is connected with the aforesaid equipment 8 that connects, and the claimant need to prove, is blower though the equipment that connects illustrates in Fig. 3; But also can be pressure-increasing machine, water pump or oil brake, or the like
Claims (2)
1. the external work of
a kind of turbo-expander is exported transmission joint; Comprise have sleeve chamber (11) and left end and right-hand member respectively be provided with the coupling sleeve (1) of a bearing (12), the left end that is separately fixed at coupling sleeve (1) and right-hand member and middle position respectively have a packing holder chamber (21) a pair of flange plate (2), be arranged on that packing holder (3) and two ends in each packing holder chamber (21) are bearing in rotationally that bearing (12) is gone up and match with packing holder (3) and the middle part is positioned at the transmission shaft (4) of sleeve chamber (11); It is characterized in that: the side that the central authorities of described packing holder (3) constitute a selfsealings ring support (3) is through to the sealing mechanism chamber (31) of opposite side; And be extended with a stack circle (32) at the accent of sealing ring support (3) back to the central authorities of a side of described bearing (12) around sealing mechanism chamber (31); On the inwall of this stack circle (32) and around the circumferencial direction of the inwall of stack circle (32), offer an annular groove (321), what be equipped with in sealing mechanism chamber (31) that the diameter of axle with described transmission shaft (4) changes is used for the transmission shaft of the end seal of transmission shaft (4) sealing mechanism (5) at random.
2.
The external work output transmission joint of turbo-expander according to claim 1; It is characterized in that described transmission shaft at random sealing mechanism (5) comprise stuffing box gland (51), first, second seal ring (52,53) and snap ring (54); Stuffing box gland (51) is placed in the described sealing mechanism chamber (31); And the inwall of the outer wall of stuffing box gland (51) and sealing mechanism chamber (31) constitutes sealing; Side at the sealing mantle cavity (511) of stuffing box gland (51) constitutes one first sealing ring cavity (5111), and opposite side constitutes one second sealing ring cavity (5112), and first seal ring (52) is arranged in the first sealing ring cavity (5111); Second seal ring (53) is arranged in the second sealing ring cavity (5112); Snap ring (54) snaps in the described annular groove (321), and contacts with the end face of stuffing box gland (51), and the end of described transmission shaft (4) is sealed and matched with sealing mantle cavity (511)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102278718A CN102767623A (en) | 2012-07-04 | 2012-07-04 | External work output transmission and connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102278718A CN102767623A (en) | 2012-07-04 | 2012-07-04 | External work output transmission and connection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102767623A true CN102767623A (en) | 2012-11-07 |
Family
ID=47095133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102278718A Pending CN102767623A (en) | 2012-07-04 | 2012-07-04 | External work output transmission and connection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102767623A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133064A (en) * | 2013-03-15 | 2013-06-05 | 联优机械(常熟)有限公司 | Self-sealing-function connecting shaft structure of expansion turbine external work output connection device |
| CN105257345A (en) * | 2015-08-11 | 2016-01-20 | 苏州西达低温设备有限公司 | Energy converting device applied to bearing-free turbo expander and directly connected with power generator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010045701A1 (en) * | 2000-02-11 | 2001-11-29 | Toal Keith R. | Mechanical seal for rotating shaft |
| CN2483562Y (en) * | 2001-05-22 | 2002-03-27 | 祥景精机股份有限公司 | Shaft seals for rotating machinery |
| CN1399706A (en) * | 1999-10-12 | 2003-02-26 | Alm开发公司 | Bearing housing for turbomachine |
| US7204490B2 (en) * | 2004-09-22 | 2007-04-17 | Scenic Precise Element Inc. | Shaft-sealing device having an inner modular structure for combining with a rotary machine |
| CN101825180A (en) * | 2009-03-04 | 2010-09-08 | 英普罗密封有限责任公司 | Pressure balanced shaft seal assembly |
| CN202691043U (en) * | 2012-07-04 | 2013-01-23 | 联优机械(常熟)有限公司 | External work output transmission connecting device of turbo-expander |
-
2012
- 2012-07-04 CN CN2012102278718A patent/CN102767623A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1399706A (en) * | 1999-10-12 | 2003-02-26 | Alm开发公司 | Bearing housing for turbomachine |
| US20010045701A1 (en) * | 2000-02-11 | 2001-11-29 | Toal Keith R. | Mechanical seal for rotating shaft |
| CN2483562Y (en) * | 2001-05-22 | 2002-03-27 | 祥景精机股份有限公司 | Shaft seals for rotating machinery |
| US7204490B2 (en) * | 2004-09-22 | 2007-04-17 | Scenic Precise Element Inc. | Shaft-sealing device having an inner modular structure for combining with a rotary machine |
| CN101825180A (en) * | 2009-03-04 | 2010-09-08 | 英普罗密封有限责任公司 | Pressure balanced shaft seal assembly |
| CN202691043U (en) * | 2012-07-04 | 2013-01-23 | 联优机械(常熟)有限公司 | External work output transmission connecting device of turbo-expander |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133064A (en) * | 2013-03-15 | 2013-06-05 | 联优机械(常熟)有限公司 | Self-sealing-function connecting shaft structure of expansion turbine external work output connection device |
| CN105257345A (en) * | 2015-08-11 | 2016-01-20 | 苏州西达低温设备有限公司 | Energy converting device applied to bearing-free turbo expander and directly connected with power generator |
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Application publication date: 20121107 |