CN104806558B - 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
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- CN104806558B CN104806558B CN201410033766.XA CN201410033766A CN104806558B CN 104806558 B CN104806558 B CN 104806558B CN 201410033766 A CN201410033766 A CN 201410033766A CN 104806558 B CN104806558 B CN 104806558B
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- Prior art keywords
- connecting rod
- pin
- drive shaft
- attachment 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 a kind of drive shaft and the attachment structure of connecting rod
And flow control device, compressor.
Background technology
For the centrifugal refigerating compressor that flow is controlled by governor motion, the blade opening size of mechanism is controlled to adjust
Work is that the torsion for transmitting execution device by drive shaft is completed.At present, the mode of its governor motion transmitting torque is driving
Axle is rigidly connected.Due to structure limit and processing technology restriction, have the drawbacks of this structure is present：1st, the structure is to part
Axiality processing request is high, it is desirable within reaching 0.02mm, increases part disqualification rate；2nd, when transmitting torque connection not
When with one heart, there is blade and bearing wear or stuck phenomenon in long-term running, easily in it, and appearance is serious after sale
Quality problems.
In prior art, drive shaft is by being rigidly connected that square concave, convex platform connects with the connection that connecting rod covers.Regulation machine
Structure passes through the axiality of control blade support dead eye and drive shaft, to ensure governor motion traveling comfort.Governor motion
Blade in running, due to the coaxiality deviation of drive shaft and supporting blades dead eye, drive shaft and driving shaft bearing
Fit dimension deviation, and the fit dimension deviation of blade and supporting blades bearing causes governor motion blade with blade
Hold bearing, drive shaft and driving shaft bearing, drive shaft and sealing gland are easily stuck, suppress, or even scratch.This causes centrifugal
Refrigeration compressor governor motion stuck phenomenon incidence is very high, easily causes serious quality problems after sale.
The content of the invention
The present invention is intended to provide attachment structure and flow control device, the compressor of a kind of drive shaft and connecting rod, to solve
The technical problem high to the axiality processing request of the drive shaft and the part of the attachment structure of connecting rod in prior art.
To achieve these goals, according to an aspect of the invention, there is provided the connection knot of a kind of drive shaft and connecting rod
Structure, including：Connecting rod；And drive shaft, it is socketed between drive shaft and connecting rod, and entered by the bearing pin for radially extending along drive shaft
Row is circumferentially positioned.
Further, the first pin-and-hole is offered in drive shaft, bearing pin is arranged in the first pin-and-hole, the two ends of bearing pin stretch out the
One pin-and-hole；Draw-in groove is offered at the position at the same diameter two ends of drive shaft on connecting rod, the two ends of bearing pin are separately mounted to
In draw-in groove.
Further, draw-in groove is the U-type groove for being arranged on interlinking lever end and being open towards drive shaft.
Further, bearing pin is pin, and pin includes being located at the cylindrical section and the prism section positioned at cylindrical section both sides of centre,
Prism section section is less than cylindrical section section, and drive shaft is arranged on cylindrical section, and prism section is fastened in draw-in groove.
Further, prism section is square column.
Further, annular groove is offered on bearing pin, correspondence annular groove offers peace in the second pin-and-hole, the second pin-and-hole in drive shaft
Alignment pin equipped with the axial location for alignment pin, alignment pin is extended in annular groove.
Further, alignment pin is split pin.
Further, it is gap cooperation between connecting rod and drive shaft.
According to a further aspect in the invention, there is provided a kind of flow control device, flow control device includes above-mentioned drive
The attachment structure of moving axis and connecting rod；And sharf, sharf is set in the connecting rod of attachment structure, and with link rotatable.
Further, sharf is bonded with connecting rod.
Further, the first end of sharf is multidiameter, the first end phase of the first end of sharf and the endoporus of connecting rod
Adaptation；Helicitic texture is provided with the first end of sharf, the locking nut being screwed onto on helicitic texture is provided with connecting rod.
Further, plain cushion is arranged with the first end of sharf, in plane of the plain cushion backstop inside connecting rod, on plain cushion
It is provided with for locking elastomeric pad, locking nut compresses elastomeric pad.
According to a further aspect in the invention, there is provided a kind of compressor, including flow regulator, the Flow-rate adjustment dress
It is set to above-mentioned flow regulator.
Include connecting rod and drive shaft using the attachment structure of technical scheme, drive shaft and connecting rod.Drive shaft with
It is socketed between connecting rod, and by the bearing pin connection being radially arranged along drive shaft.Drive shaft and the company of connecting rod using the present invention
Binding structure, the extraneous power input of drive shaft connection, dynamic torque is delivered on connecting rod by bearing pin；The structure is made by bearing pin
Obtain and formed between drive shaft and connecting rod flexible connection, connecting rod there can be certain bit shift compensation under the assembling structure of bearing pin,
So as to reduce axiality processing request of the structure to part.
Description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows that the decomposition texture of the embodiment of the driving Axile connection structure of the compressor governor motion of the present invention is illustrated
Figure；
Fig. 2 shows the main view surface structure of the embodiment of the driving Axile connection structure of the compressor governor motion of the present invention
Schematic diagram；
Fig. 3 shows the plan structure section view of the embodiment of the driving Axile connection structure of the compressor governor motion of the present invention
Figure；
Fig. 4 shows the backsight structure section view of the embodiment of the driving Axile connection structure of the compressor governor motion of the present invention
Figure；And
Fig. 5 shows the enlarged partial sectional view at the A of Fig. 4.
Reference：
10th, connecting rod；11st, draw-in groove；20th, spring bearing；30th, sharf；31st, locking nut；311st, elastomeric pad；312nd, put down
Pad；40th, drive shaft；41st, the first pin-and-hole；42nd, the second pin-and-hole；50th, pin；51st, annular groove；52nd, alignment pin；60th, flat key.
Specific embodiment
Below with reference to accompanying drawing and in conjunction with the embodiments describing the present invention in detail.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
As shown in Figures 1 to 4, embodiments in accordance with the present invention, the invention provides the connection knot of a kind of drive shaft and connecting rod
Structure, it includes connecting rod 10 and drive shaft 40.It is socketed between drive shaft 40 and connecting rod 10, drive shaft 40 passes through pin 50 with connecting rod 10
Carry out circumferentially positioned, pin 50 is radially extended along drive shaft 40.Connecting rod 10 passes through spring bearing 20 by the attachment structure entirety
Be connected in compressor.
Using the drive shaft and the attachment structure of connecting rod of the present invention, drive shaft 40 connects the power input in the external world, and power is turned round
Square is delivered on connecting rod 10 by pin 50；The attachment structure of the drive shaft 40 and connecting rod 10 is attached by pin 50, is made
Obtain and formed between drive shaft 40 and connecting rod 10 flexible connection, this flexible connection mode is passed power input mechanism by pin 50
The moment of torsion of connecting rod 10 is passed by the two ends of pin 50 while being delivered to connecting rod 10, and connecting rod 10 can be tied in the assembling of pin 50
There is certain bit shift compensation under structure, so as to reduce axiality processing request of the structure to part, solve and be rigidly connected
The abrasion caused during transmitting torque or stuck problem.
Specifically, the first pin-and-hole 41 is offered in drive shaft, pin 50 is arranged in the first pin-and-hole 41, the two ends of pin 50
Stretch out the first pin-and-hole 41；Draw-in groove 11 is offered at the position at the same diameter two ends of drive shaft 40 on connecting rod 10, due to post
The first pin-and-hole 41 has been stretched out at the two ends of pin 50, and the two ends of pin 50 can be separately mounted in draw-in groove 11.Drive shaft 40 passes through post
Pin 50 is positioned on connecting rod 10, and pin 50 causes drive shaft 40 to impart power to connecting rod 10, such that it is able to drive
Connecting rod 10 is rotated, and then connecting rod 10 is to the output torque of sharf 30, and controls the rotating speed of sharf 30, then by controlling blade
The rotating speed of axle 30 is controlling the gas flow of compressor.
Preferably, draw-in groove 11 is U-type groove, and U-type groove is arranged on the end of connecting rod 10, in order that drive shaft 40 and connecting rod
10 assembling modes are simpler, and the opening of U-type groove is directed towards drive shaft 40.
Preferably, bearing pin is pin 50.The selection of pin 50 can preferably control the manufacturing cost of product.Pin 50 is wrapped
Include circle of position shell of column and prism section.In the centre of pin 50, prism section is located at respectively cylindrical section both sides to cylindrical section.Drive shaft is arranged on
On cylindrical section, prism section is fastened in draw-in groove 11.Because draw-in groove 11 is preferably U-type groove, in order that pin 50 can be more easily
In being installed into U-type groove, and the intensity of guarantee pin 50, prism section section is less than cylindrical section section.Prism section is preferably square column,
Square column is simpler with the cooperation of U-type groove, reliable, and stress surface is larger, and the transmission effect of power is preferable.
Preferably, annular groove 51 is offered on pin 50, correspondence annular groove 51 offers the second pin-and-hole 42 in drive shaft 40, second
Alignment pin 52 is installed, alignment pin 52 is used to position the axial location of pin 50, and alignment pin 52 extends to annular groove 51 in pin-and-hole 42
It is interior.After alignment pin 52 is installed, the mid portion of alignment pin 52 is arranged in annular groove 51, so as to pin 50 is positioned at into drive shaft
On 40 so that pin 50 no longer occurs the situation along its axial float, the service behaviour of the structure is more reliable.Selection for convenience
With it is cost-effective, alignment pin is preferably split pin.
It is gap cooperation between connecting rod 10 and drive shaft with reference to shown in Figure 5.This structure enables drive shaft 40
There is in the connecting rod 10 mobile space, it is ensured that drive shaft 40 compensate be connected 360 degree with connecting rod 10 component assembly errors and
Part's machining errors, it is preferable that drive shaft is connected as via and is connected with connecting rod 10, and the gap of monolateral more than guarantee 0.3mm.
A kind of embodiments in accordance with the present invention, there is provided flow control device.The flow control device includes above-mentioned drive
The attachment structure of moving axis and connecting rod 10.The flow control device also includes sharf 30, and sharf 30 is set in connecting rod 10, and
Rotate with connecting rod 10.Sharf 30 is bonded with connecting rod 10.Key selects conventional flat key 60.The first end of sharf 30 is rank
Terraced axle, the first end of sharf 30 is adapted with the first end of the endoporus of connecting rod 10；Screw thread is provided with the first end of sharf 30
The locking nut 31 being screwed onto on helicitic texture is provided with structure, connecting rod 10.Plain cushion is arranged with the first end of sharf 30
312, in plane of the backstop of plain cushion 312 inside connecting rod 10, it is provided with plain cushion for locking elastomeric pad 311, locking screw
Female 31 compress elastomeric pad 311.Cause locking nut 31 that there is locking effect using elastomeric pad 311, be better protected from screw thread
Attachment structure is disconnected.
After the drive shaft 40 of flow control device and the attachment structure of connecting rod 10 are improved, when the moment of torsion of power input mechanism
When passing to drive shaft 40, drive shaft 40 is combined the lasting rotation for doing transmitting torque with connecting rod 10, drive shaft 40 and connecting rod 10 it
Between type of attachment can effectively correct the dead eye of spring bearing 20 and the position of related features in driving shaft bearing hole, smoothly pass
Torque delivery so that the operation of governor motion long-term smooth.
Embodiments in accordance with the present invention, there is provided a kind of compressor, including flow regulator, the flow regulator is
Above-mentioned flow regulator.
Following beneficial effect can be obtained using embodiments of the invention：The attachment structure reduces the structure to part
Axiality processing request.
The preferred embodiments of the present invention are these are only, the present invention is not limited to, for those skilled in the art
For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (12)
1. the attachment structure of a kind of drive shaft and connecting rod, it is characterised in that include：
Connecting rod (10)；And
Drive shaft (40), is socketed between the drive shaft (40) and the connecting rod (10), and by along the drive shaft (40)
The pin (50) for radially extending carries out circumferentially positioned；
Annular groove (51) is offered on the pin (50), the correspondence annular groove (51) offers the second pin on the drive shaft (40)
Alignment pin (52) for positioning the axial location of the pin (50), institute are installed in hole (42), second pin-and-hole (42)
State alignment pin (52) to extend in the annular groove (51).
2. attachment structure according to claim 1, it is characterised in that offer the first pin-and-hole on the drive shaft (40)
(41), the pin (50) is interior installed in first pin-and-hole (41), and first pin-and-hole is stretched out at the two ends of the pin (50)
(41)；Draw-in groove (11), institute are offered on the connecting rod (10) at the position at the same diameter two ends of the drive shaft (40)
The two ends for stating pin (50) are separately mounted in the draw-in groove (11).
3. attachment structure according to claim 2, it is characterised in that the draw-in groove (11) is to be arranged on the connecting rod (10)
End and the U-type groove being open towards the drive shaft (40).
4. attachment structure according to claim 2, it is characterised in that the pin includes being located at middle cylindrical section and position
In the prism section of the cylindrical section both sides, the prism section section is less than the cylindrical section section, and the drive shaft (40) is arranged
On the cylindrical section, the prism section is fastened in the draw-in groove (11).
5. attachment structure according to claim 4, it is characterised in that the prism section is square column.
6. attachment structure according to claim 1, it is characterised in that the alignment pin (52) is split pin.
7. attachment structure according to any one of claim 1 to 5, it is characterised in that the connecting rod (10) and the drive
It is gap cooperation between moving axis (40).
8. a kind of flow control device, it is characterised in that the flow control device includes any one of claim 1 to 7 institute
The drive shaft stated and the attachment structure of connecting rod；And sharf (30), the sharf (30) is set in the attachment structure
In connecting rod (10), and rotate with the connecting rod (10).
9. flow control device according to claim 8, it is characterised in that the sharf (30) and the connecting rod (10)
For bonded.
10. flow control device according to claim 9, it is characterised in that the first end of the sharf (30) is rank
Terraced axle, the first end of the sharf (30) is adapted with the first end of the endoporus of the connecting rod (10)；The sharf (30)
First end on be provided with helicitic texture, is provided with the locking nut being screwed onto on the helicitic texture in the connecting rod (10)
(31)。
11. flow control devices according to claim 10, it is characterised in that cover in the first end of the sharf (30)
Plain cushion (312) is provided with, plain cushion (312) backstop is arranged in the internal plane of the connecting rod (10) on the plain cushion (312)
Have for locking elastomeric pad (311), the locking nut (31) compresses the elastomeric pad (311).
A kind of 12. compressors, including flow regulator, it is characterised in that the flow regulator is claim 8 to 11
Any one of flow regulator.
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 CN104806558A (en) | 2015-07-29 |
| CN104806558B true 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) |
Family Cites Families (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 |
| JP5109696B2 (en) * | 2008-02-06 | 2012-12-26 | 株式会社Ｉｈｉ | refrigerator |
| JP5092853B2 (en) * | 2008-04-07 | 2012-12-05 | パナソニック株式会社 | Blower blade mounting device |
| 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN104806558A (en) | 2015-07-29 |
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