CN104806558A - Connecting structure of driving shaft and connecting rod, flow regulation mechanism and compressor - Google Patents
Connecting structure of driving shaft and connecting rod, flow regulation mechanism and compressor Download PDFInfo
- Publication number
- CN104806558A CN104806558A CN201410033766.XA CN201410033766A CN104806558A CN 104806558 A CN104806558 A CN 104806558A CN 201410033766 A CN201410033766 A CN 201410033766A CN 104806558 A CN104806558 A CN 104806558A
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- China
- Prior art keywords
- connecting rod
- pin
- live axle
- linkage structure
- sharf
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
- F04D29/054—Arrangements for joining or assembling shafts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a connecting structure of a driving shaft and a connecting rod, a flow regulation mechanism and a compressor. The connecting structure of the driving shaft and the connecting rod comprises the connecting rod (10) and the driving shaft (40), wherein the driving shaft (40) and the connecting rod (10) are sleeved and are peripherally positioned through a pin shaft (5) which extends along the radial direction of the driving shaft (40). The connecting structure of the driving shaft and the connecting rod solves the technical problem that the connecting structure of the driving shaft and the connecting rod in the prior art has high processing requirement on coaxiality of parts.
Description
Technical field
The present invention relates to air condition compressor technology field, in particular to linkage structure and flow control device, the compressor of a kind of live axle and connecting rod.
Background technique
For the centrifugal refigerating compressor being controlled flow by controlling mechanism, the work of the blade opening size of regulating and controlling mechanism is completed by the torsion of live axle transmission execution device.At present, the mode of its controlling mechanism transmitting torque is that live axle is rigidly connected.Due to the restriction of structural limitations and processing technology, the drawback that this structure exists has: 1, the coaxality processing request of this structure to part is high, within requiring to reach 0.02mm, part disqualification rate is increased; 2, when the connection decentraction of transmitting torque, it is in long-term running, easily occurs blade and bearing wear or stuck phenomenon, occurs serious quality problems after sale.
In prior art, the connection that live axle and connecting rod overlap is being rigidly connected of being connected by square concave, convex platform.Controlling mechanism passes through the coaxality controlling blade support bearing hole and live axle, to ensure controlling mechanism traveling comfort.The blade of controlling mechanism is in running, due to the coaxiality deviation of live axle and supporting blades bearing hole, the fit dimension deviation of live axle and driving shaft bearing, and the fit dimension deviation of blade and supporting blades bearing, cause controlling mechanism blade and supporting blades bearing, live axle and driving shaft bearing, live axle and sealing gland easily stuck, suppress, even abrade.This makes centrifugal refigerating compressor controlling mechanism stuck phenomenon incidence rate very high, easily causes serious quality problems after sale.
Summary of the invention
The present invention aims to provide linkage structure and flow control device, the compressor of a kind of live axle and connecting rod, to solve technical problem high to the coaxality processing request of the part of the linkage structure of this live axle and connecting rod in prior art.
To achieve these goals, according to an aspect of the present invention, provide the linkage structure of a kind of live axle and connecting rod, comprising: connecting rod; And live axle, be socketed between live axle and connecting rod, and carry out circumference location by the bearing pin extended along the radial direction of live axle.
Further, live axle offers the first pin-and-hole, bearing pin is arranged in the first pin-and-hole, and the first pin-and-hole is stretched out at the two ends of bearing pin; Position connecting rod being positioned at the same diameter two ends of live axle offers draw-in groove, and the two ends of bearing pin are arranged in draw-in groove respectively.
Further, draw-in groove be arranged on interlinking lever end and opening towards the U-type groove of live axle.
Further, bearing pin is pin, and pin comprises the prism section being positioned at middle cylindrical section and being positioned at cylindrical section both sides, and prism section cross section is less than cylindrical section cross section, and live axle is arranged on cylindrical section, and prism section is fastened in draw-in groove.
Further, prism section is square column.
Further, bearing pin offers annular groove, on live axle, corresponding annular groove offers the second pin-and-hole, and be provided with the locating stud of the axial position for alignment pin in the second pin-and-hole, locating stud extends in annular groove.
Further, locating stud is cotter pin.
Further, between connecting rod and live axle be Spielpassung.
According to a further aspect in the invention, provide a kind of flow control device, flow control device comprises above-mentioned live axle and the linkage structure of connecting rod; And sharf, sharf is set in the connecting rod of linkage structure, and with link rotatable.
Further, sharf and connecting rod are that key is connected.
Further, the first end of sharf is multidiameter shaft, and the first end of the first end of sharf and the endoporus of connecting rod is suitable; The first end of sharf is provided with worm structure, in connecting rod, is provided with the locking nut be screwed onto on worm structure.
Further, the first end of sharf is arranged with plain cushion, plain cushion backstop, in the plane of connecting rod inside, plain cushion is provided with for locking resilient pad, and locking nut compresses resilient pad.
According to a further aspect in the invention, provide a kind of compressor, comprise flow regulator, described flow regulator is above-mentioned flow regulator.
Apply technological scheme of the present invention, the linkage structure of live axle and connecting rod comprises connecting rod and live axle.Be socketed between live axle and connecting rod, and the pinned connection by arranging along the radial direction of live axle.Apply the linkage structure of live axle of the present invention and connecting rod, live axle connects extraneous power input, and dynamic torque is delivered on connecting rod by bearing pin; This structure makes to be formed between live axle and connecting rod to flexibly connect by bearing pin, and connecting rod can have certain bit shift compensation under the assembly structure of bearing pin, thus reduces the coaxality processing request of this structure to part.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the decomposition texture schematic diagram of the embodiment of the live axle linkage structure of compressor controlling mechanism of the present invention;
The master that Fig. 2 shows the embodiment of the live axle linkage structure of compressor controlling mechanism of the present invention looks surface structure schematic diagram;
Fig. 3 shows the plan structure sectional view of the embodiment of the live axle linkage structure of compressor controlling mechanism of the present invention;
Fig. 4 shows the rear TV structure sectional view of the embodiment of the live axle linkage structure of compressor controlling mechanism of the present invention; And
Fig. 5 shows the enlarged partial sectional view at the A place of Fig. 4.
Reference character:
10, connecting rod; 11, draw-in groove; 20, spring bearing; 30, sharf; 31, locking nut; 311, resilient pad; 312, plain cushion; 40, live axle; 41, the first pin-and-hole; 42, the second pin-and-hole; 50, pin; 51, annular groove; 52, locating stud; 60, flat key.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
As shown in Figures 1 to 4, according to embodiments of the invention, the invention provides the linkage structure of a kind of live axle and connecting rod, it comprises connecting rod 10 and live axle 40.Be socketed between live axle 40 and connecting rod 10, live axle 40 and connecting rod 10 carry out circumference by pin 50 and locate, and pin 50 extends along the radial direction of live axle 40.Connecting rod 10 is by spring bearing 20 being connected to this linkage structure entirety in compressor.
Apply the linkage structure of live axle of the present invention and connecting rod, live axle 40 connects extraneous power input, and dynamic torque is delivered on connecting rod 10 by pin 50; This live axle 40 is connected by pin 50 with the linkage structure of connecting rod 10, make to be formed between live axle 40 and connecting rod 10 to flexibly connect, the moment of torsion that power input mechanism to be passed to connecting rod 10 by pin 50 by this flexible connection mode is delivered to connecting rod 10 by the two ends of pin 50 simultaneously, and connecting rod 10 can have certain bit shift compensation under the assembly structure of pin 50, thus reduce the coaxality processing request of this structure to part, solve the wearing and tearing or stuck problem that cause when being rigidly connected transmitting torque.
Particularly, live axle offers the first pin-and-hole 41, pin 50 is arranged in the first pin-and-hole 41, and the first pin-and-hole 41 is stretched out at the two ends of pin 50; Position connecting rod 10 being positioned at the same diameter two ends of live axle 40 offers draw-in groove 11, and the first pin-and-hole 41 has been stretched out at the two ends due to pin 50, and the two ends of pin 50 can be arranged in draw-in groove 11 respectively.Live axle 40 is positioned on connecting rod 10 by pin 50, and pin 50 makes live axle 40 by transmission of power to connecting rod 10, thus can drive link 10 rotate, then connecting rod 10 is to sharf 30 output torque, and controlling the rotating speed of sharf 30, the rotating speed then by controlling sharf 30 controls the gas flow of compressor.
Preferably, draw-in groove 11 is U-type groove, and U-type groove is arranged on connecting rod 10 end, and in order to make live axle 40 and connecting rod 10 assemble mode more simply, the opening of U-type groove is towards live axle 40.
Preferably, bearing pin is pin 50.Pin 50 choose the manufacture cost that can control product preferably.Pin 50 comprises circle of position shell of column and prism section.Cylindrical section is in the centre of pin 50, and prism section lays respectively at cylindrical section both sides.Live axle is arranged on cylindrical section, and prism section is fastened in draw-in groove 11.Because draw-in groove 11 is preferably U-type groove, in order to make pin 50 be installed in U-type groove more easily, and ensure the intensity of pin 50, prism section cross section is less than cylindrical section cross section.Prism section is preferably square column, and square column is simpler and easy with coordinating of U-type groove, and reliably, and stress surface is comparatively large, and the transmission effect of power is better.
Preferably, pin 50 offers annular groove 51, on live axle 40, corresponding annular groove 51 offers in the second pin-and-hole 42, second pin-and-hole 42 and is provided with locating stud 52, and locating stud 52 is for locating the axial position of pin 50, and locating stud 52 extends in annular groove 51.After locating stud 52 installs, the intermediate portion of locating stud 52 is arranged in annular groove 51, thus is positioned on live axle 40 by pin 50, and make the situation that pin 50 no longer occurs along its axial float, the service behaviour of this structure is more reliable.Conveniently selection and cost-saving, locating stud is preferably cotter pin.
In conjunction with shown in Figure 5, be Spielpassung between connecting rod 10 and live axle.This structure makes live axle 40 can have the space of movement in connecting rod 10, ensure that live axle 40 compensates part assembly error and part's machining errors with being connected 360 degree with connecting rod 10, preferably, live axle is connected for via hole connects with connecting rod 10, and the gap of monolateral more than guarantee 0.3mm.
According to embodiments of the invention, provide a kind of flow control device.This flow control device comprises the linkage structure of above-mentioned live axle and connecting rod 10.This flow control device also comprises sharf 30, and sharf 30 is set in connecting rod 10, and rotates with connecting rod 10.Sharf 30 with connecting rod 10 for key is connected.Key selects conventional flat key 60.The first end of sharf 30 is multidiameter shaft, the first end of sharf 30 and the first end of connecting rod 10 endoporus suitable; The first end of sharf 30 is provided with worm structure, in connecting rod 10, is provided with the locking nut 31 be screwed onto on worm structure.The first end of sharf 30 is arranged with plain cushion 312, plain cushion 312 backstop is in the plane of connecting rod 10 inside, and plain cushion is provided with for locking resilient pad 311, locking nut 31 compresses resilient pad 311.Adopt resilient pad 311 to make locking nut 31 have locking effect, prevent screw connection structure from departing from better and connect.
After the live axle 40 of flow control device and the linkage structure of connecting rod 10 are improved, when the moment of torsion of power input mechanism passes to live axle 40, live axle 40 is combined the lasting rotation doing transmitting torque with connecting rod 10, Connecting format between live axle 40 and connecting rod 10 can revise the bearing hole of spring bearing 20 and the positioning tolerance in driving shaft bearing hole effectively, transmitting torque smoothly, makes the operation of controlling mechanism long-term smooth.
According to embodiments of the invention, provide a kind of compressor, comprise flow regulator, this flow regulator is above-mentioned flow regulator.
Application embodiments of the invention can obtain following beneficial effect: this linkage structure reduces the coaxality processing request of this structure to part.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a linkage structure for live axle and connecting rod, is characterized in that, comprising:
Connecting rod (10); And
Live axle (40), is socketed between described live axle (40) and described connecting rod (10), and carries out circumference location by the pin (50) extended along the radial direction of described live axle (40).
2. linkage structure according to claim 1, it is characterized in that, described live axle (40) offers the first pin-and-hole (41), described pin (50) is arranged in described first pin-and-hole (41), and described first pin-and-hole (41) is stretched out at the two ends of described pin (50); The position described connecting rod (10) being positioned at the same diameter two ends of described live axle (40) offers draw-in groove (11), and the two ends of described pin (50) are arranged in described draw-in groove (11) respectively.
3. linkage structure according to claim 2, is characterized in that, described draw-in groove (11) for be arranged on described connecting rod (10) end and opening towards the U-type groove of described live axle (40).
4. linkage structure according to claim 2, it is characterized in that, described pin (50) is pin, described pin comprises the prism section being positioned at middle cylindrical section and being positioned at described cylindrical section both sides, described prism section cross section is less than described cylindrical section cross section, described live axle (40) is arranged on described cylindrical section, and described prism section is fastened in described draw-in groove (11).
5. linkage structure according to claim 4, is characterized in that, described prism section is square column.
6. the linkage structure according to any one of claim 2 to 5, it is characterized in that, described pin (50) offers annular groove (51), the upper corresponding described annular groove (51) of described live axle (40) offers the second pin-and-hole (42), be provided with the locating stud (52) of the axial position for locating described pin (50) in described second pin-and-hole (42), described locating stud (52) extends in described annular groove (51).
7. linkage structure according to claim 6, is characterized in that, described locating stud (52) is cotter pin.
8. linkage structure according to any one of claim 1 to 5, is characterized in that, is Spielpassung between described connecting rod (10) and described live axle (40).
9. a flow control device, is characterized in that, described flow control device comprises the linkage structure of live axle according to any one of claim 1 to 8 and connecting rod; And sharf (30), described sharf (30) is set in the connecting rod (10) of described linkage structure, and rotates with described connecting rod (10).
10. flow control device according to claim 9, is characterized in that, described sharf (30) with described connecting rod (10) for key is connected.
11. flow control devices according to claim 10, is characterized in that, the first end of described sharf (30) is multidiameter shaft, and the first end of the first end of described sharf (30) and the endoporus of described connecting rod (10) is suitable; The first end of described sharf (30) is provided with worm structure, in described connecting rod (10), is provided with the locking nut (31) be screwed onto on described worm structure.
12. flow control devices according to claim 11, it is characterized in that, the first end of described sharf (30) is arranged with plain cushion (312), described plain cushion (312) backstop is in the plane that described connecting rod (10) is inner, described plain cushion (312) is provided with for locking resilient pad (311), described locking nut (31) compresses described resilient pad (311).
13. 1 kinds of compressors, comprise flow regulator, it is characterized in that, the flow regulator of described flow regulator according to any one of claim 9 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033766.XA CN104806558B (en) | 2014-01-23 | 2014-01-23 | Connecting structure of driving shaft and connecting rod, flow regulation mechanism and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033766.XA CN104806558B (en) | 2014-01-23 | 2014-01-23 | Connecting structure of driving shaft and connecting rod, flow regulation mechanism and compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104806558A true CN104806558A (en) | 2015-07-29 |
| CN104806558B CN104806558B (en) | 2017-05-10 |
Family
ID=53691678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410033766.XA Active CN104806558B (en) | 2014-01-23 | 2014-01-23 | Connecting structure of driving shaft and connecting rod, flow regulation mechanism and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104806558B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318696A (en) * | 2001-04-09 | 2001-10-24 | 成都希望电子研究所 | Centrifugal gas compressor |
| CN2536821Y (en) * | 2001-12-06 | 2003-02-19 | 重庆通用工业(集团)有限责任公司 | Adjustable guide blade and diffuser linkage device for inlet of centrifugal refrigerating compressor |
| CN101290029A (en) * | 2007-04-20 | 2008-10-22 | 东莞首资宝电器制造有限公司 | Transmission adapter and blower fan using same |
| US20090196745A1 (en) * | 2008-02-06 | 2009-08-06 | Noriyasu Sugitani | Inlet guide vane, compressor and refrigerator |
| JP2009250114A (en) * | 2008-04-07 | 2009-10-29 | Panasonic Corp | Blade installing device of air blower |
| CN101725563A (en) * | 2009-11-20 | 2010-06-09 | 无锡压缩机股份有限公司 | Draw bail of vane wheel and high-speed rotation shaft of high-speed centrifugal compression device |
| CN203730386U (en) * | 2014-01-23 | 2014-07-23 | 珠海格力电器股份有限公司 | Connecting structure of driving shaft and connecting rod, flow adjustment mechanism and compressor |
-
2014
- 2014-01-23 CN CN201410033766.XA patent/CN104806558B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318696A (en) * | 2001-04-09 | 2001-10-24 | 成都希望电子研究所 | Centrifugal gas compressor |
| CN2536821Y (en) * | 2001-12-06 | 2003-02-19 | 重庆通用工业(集团)有限责任公司 | Adjustable guide blade and diffuser linkage device for inlet of centrifugal refrigerating compressor |
| CN101290029A (en) * | 2007-04-20 | 2008-10-22 | 东莞首资宝电器制造有限公司 | Transmission adapter and blower fan using same |
| US20090196745A1 (en) * | 2008-02-06 | 2009-08-06 | Noriyasu Sugitani | Inlet guide vane, compressor and refrigerator |
| JP2009250114A (en) * | 2008-04-07 | 2009-10-29 | Panasonic Corp | Blade installing device of air blower |
| CN101725563A (en) * | 2009-11-20 | 2010-06-09 | 无锡压缩机股份有限公司 | Draw bail of vane wheel and high-speed rotation shaft of high-speed centrifugal compression device |
| CN203730386U (en) * | 2014-01-23 | 2014-07-23 | 珠海格力电器股份有限公司 | Connecting structure of driving shaft and connecting rod, flow adjustment mechanism and compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104806558B (en) | 2017-05-10 |
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