CN205315470U - Connecting rod and reciprocating compressor - Google Patents
Connecting rod and reciprocating compressor Download PDFInfo
- Publication number
- CN205315470U CN205315470U CN201620087193.3U CN201620087193U CN205315470U CN 205315470 U CN205315470 U CN 205315470U CN 201620087193 U CN201620087193 U CN 201620087193U CN 205315470 U CN205315470 U CN 205315470U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- axis hole
- bent axle
- head
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Compressor (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model relates to a connecting rod and reciprocating compressor, wherein the connecting rod includes first head, first head is equipped with the shaft hole that is used for wearing to establish the bent axle, be equipped with the recess on at least one terminal surface of first head in the bent axle motion process, the recess with part between the shaft hole can the radial bias voltage effect of bent axle produces deformation down, with the increase the bearing area of connecting rod. The utility model discloses be equipped with the shaft hole that is used for wearing to establish the bent axle on the first head of connecting rod, be equipped with the recess on at least one terminal surface of first head, radial bias voltage makes when being applyed owing to deformation or other reasons to the shaft hole that contacts with it to the bent axle, the deformation of the part between accessible recess and the shaft hole and increase the bearing area of connecting rod, the area of contact between bent axle and the shaft hole has been increased promptly, can avoid local contact, reduce contact pressure, improve the wearing and tearing condition of bent axle and connecting rod, improve the compressor reliability.
Description
Technical field
This utility model relates to Compressor Technology field, particularly relates to a kind of connecting rod and reciprocating compressor.
Background technology
Reciprocating compressor is mainly made up of compression chamber and bent axle, compression chamber is built with piston, bent axle is coupled together by connecting rod and piston, when driven by motor bent axle rotates, by the transmission of connecting rod, piston does upper and lower reciprocating motion in compression chamber, and inhaling, under the cooperation of air bleeding valve, completes the suction to cold-producing medium and compression. The bent axle of existing reciprocating compressor is susceptible to flexural deformation in the running, bent axle after deformation, its deformation position and connecting rod localized contact, cause that localized contact stress is bigger, on bent axle, crank and connecting rod are susceptible to inordinate wear, cause bent axle or connecting rod cracking time serious, affect the operation of compressor.
Utility model content
The purpose of this utility model is to propose a kind of connecting rod and reciprocating compressor, improves the abrasion between bent axle and connecting rod as much as possible.
For achieving the above object, this utility model provides a kind of connecting rod, including the first head, described first head is provided with the axis hole for wearing bent axle, at least one end face of described first head is provided with groove, in described Crankshaft motion process, the part between described groove and described axis hole can produce deformation under the radially biased effect of described bent axle, to increase the bearing area of described connecting rod.
Further, described groove is recessed along the axis direction of described axis hole from the end face of described first head.
Further, described groove is the annular groove coaxial with described axis hole.
Further, it is provided with elastic layer in described groove.
Further, described groove is 0.3*D≤h≤0.6*D along the relation between the degree of depth h and the diameter D of described axis hole of described axis hole axis direction.
Further, the part between described groove with described axis hole is 0.05*D≤d≤0.1*D along the relation between the minimum thickness d and the diameter D of described axis hole in the direction vertical with described axis hole axis.
Further, described groove is along the rectangular in cross-section of the axis direction of described axis hole, triangle or trapezoidal.
Further, described trapezoidal longer base is positioned at the plane at the end face place of described first head.
Further, the thickness d of the part between described groove and described axis hole is gradually increased along the axis direction of described axis hole from the end face of described first head.
For achieving the above object, this utility model additionally provides a kind of reciprocating compressor, including bent axle, piston and above-mentioned connecting rod, described connecting rod also includes the second head, one end of described bent axle is set in the axis hole of the first head of described connecting rod, and described piston is connected with described second head by pin.
Further, described groove is the annular groove coaxial with described axis hole, the external diameter G of described groove, the throw of crankshaft R of described bent axle, described bent axle major axis and the eccentric throw B of short axle between relation be G 2* (R-B).
Based on technique scheme, this utility model is provided with the axis hole for wearing bent axle on the first head of connecting rod, at least one end face of first head is provided with groove, make when bent axle applies radially biased due to deformation or other reasons to the axis hole contacted, the bearing area of connecting rod can be increased by the deformation of the part between groove and axis hole, namely the contact area between bent axle and axis hole is increased, localized contact can be avoided, reduce footprint pressure, improve the abrasion condition of bent axle and connecting rod, improve compressor reliability.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes the part of the application, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model. In the accompanying drawings:
Fig. 1 is the structural representation of one embodiment of this utility model reciprocating compressor.
Fig. 2 is the structural representation of one embodiment of this utility model connecting rod.
Fig. 3 is the top view of one embodiment of this utility model connecting rod.
Fig. 4 is one embodiment of this utility model connecting rod sectional view along axis.
Fig. 5 is the structural representation of crank on bent axle in one embodiment of this utility model reciprocating compressor.
Fig. 6 is the structural representation of bent axle in one embodiment of this utility model reciprocating compressor.
Fig. 7 is another embodiment of this utility model connecting rod sectional view along axis.
Fig. 8 is this utility model connecting rod further embodiment sectional view along axis.
In figure: 1-stator, 2-rotor, 3-bent axle, 4-frame, 5-connecting rod, 6-piston, 51-the second head, 52-the first head, 53-groove.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in embodiment is clearly and completely described. Obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments. Based on embodiment of the present utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
In description of the present utility model, it will be appreciated that, term " " center ", " transverse direction ", " longitudinal direction ", " front ", " afterwards ", " left side ", " right side ", " on ", D score, " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that restriction to this utility model protection domain.
As depicted in figs. 1 and 2, the structural representation of respectively this utility model reciprocating compressor and connecting rod embodiment. Wherein, connecting rod 5 includes the first head 52, described first head 52 is provided with the axis hole for wearing bent axle 3, at least one end face of described first head 52 is provided with groove 53, in described bent axle 3 motor process, part between described groove 53 and described axis hole can produce deformation under the radially biased effect of described bent axle 3, to increase the bearing area of described connecting rod 5.
Above-described embodiment is provided with the axis hole for wearing bent axle on the first head of connecting rod, at least one end face of first head is provided with groove, make when bent axle applies radially biased due to deformation or other reasons to the axis hole contacted, the bearing area of connecting rod can be increased by the deformation of the part between groove and axis hole, namely the contact area between bent axle and axis hole is increased, localized contact can be avoided, reduce footprint pressure, improve the abrasion condition of bent axle and connecting rod, improve compressor reliability.
In as with the embodiments shown in figures 2 and 3, connecting rod 5 has upper and lower two end faces, and groove 53 can be arranged on upper surface, it is also possible to is arranged on lower surface, can also be respectively provided with in upper surface and lower surface, specifically can carry out choice arrangement according to the stressing conditions between bent axle 3 and connecting rod 5. As in figure 2 it is shown, groove 53 is arranged on upper surface; As it is shown on figure 3, groove 53 is arranged on lower surface, therefore its top view can't see groove 53.
The specific constructive form of groove 53 is comparatively various, it is possible to select according to actual needs.
Groove 53 can be recessed along the direction parallel with axis hole axis, it is also possible to recessed sideling, as long as deformation can be produced for the part between groove 53 and axis hole to provide space. In one embodiment, described groove 53 is recessed along the axis direction of described axis hole from the end face of described first head 52.
Preferably, described groove 53 is the annular groove coaxial with described axis hole. In another embodiment, groove 53 can also be the shape of two semicircles, the circular shape of multiple interruption or other shapes.
Can being provided with elastic layer in groove 53, when axis hole is subject to radially biased, this elastic layer can deform upon, buffering abrasion.
The dimensional requirement of groove 53 could be arranged to: described groove 53 is 0.3*D≤h≤0.6*D along the relation between the degree of depth h and the diameter D of described axis hole of described axis hole axis direction; Part between described groove 53 and described axis hole is 0.05*D≤d≤0.1*D along the relation between the minimum thickness d and the diameter D of described axis hole in the direction vertical with described axis hole axis.
Restriction to the groove 53 degree of depth h along axis hole axis direction with along the thickness d of the vertical direction of axis hole axis is to make compressor in the running, when crankshaft-and-connecting-rod contact local stress is excessive, connecting rod produces to produce deformation, increases the contact surface of crankshaft-and-connecting-rod, reduces footprint pressure. When h and d is not within the scope of this, one be contact stress excessive time, part deformation between groove 53 and axis hole is excessive, the portion fractures between groove 53 and axis hole or permanent failure may be made, two is that link lever deflection is too small, even do not deform upon, it is impossible to play the purpose reducing localized contact pressure.
As shown in Figure 4, described groove 53 is along the rectangular in cross-section of the axis direction of described axis hole; As it is shown in fig. 7, described groove 53 is isosceles trapezoid along the cross section of the axis direction of described axis hole; As shown in Figure 8, described groove 53 is at right angles trapezoidal along the cross section of the axis direction of described axis hole, and wherein the hypotenuse of right-angled trapezium is near axis hole, and vertical edges, away from axis hole, so arranges and can ensure that enough deflections, rectangle and right-angled trapezium are easier to processing. Certainly, except above-mentioned shape, groove 53 can also be triangle or other shapes along the cross section of the axis direction of described axis hole.
When groove 53 is trapezoidal along the cross section of the axis direction of axis hole, trapezoidal longer base is positioned at the plane at the end face place of the first head 52, and trapezoidal shorter base extends to the inside of the first head 52. The opening of groove 53 so can be made inwardly to be gradually reduced from end face, make groove 53 maximum at the position opening near end face, to ensure enough deformation spaces, meet the demand that crankpin end face place stress is bigger.
When groove 53 has hypotenuse along the cross section of the axis direction of axis hole, the part between described groove 53 and described axis hole is gradually increased along the axis direction of described axis hole along the thickness d in the direction vertical with described axis hole axis from the end face of described first head 52. So be easy to processing at the same time it can also be make part between groove 53 and axis hole less at the position thickness near end face, it is easier to be deformed.
Based on above-mentioned connecting rod, this utility model also proposes a kind of reciprocating compressor, as shown in Figure 1, this reciprocating compressor includes bent axle 3, piston 6 and above-mentioned connecting rod 5, wherein said connecting rod 5 also includes the second head 51, and described bent axle 3 is located in the axis hole of the first head 52 of described connecting rod 5, and described second head 51 is connected with described piston 6, the described bent axle 3 rotated drives described connecting rod 5 to move, and then drives described piston 6 to move back and forth.
As shown in Figure 5 and Figure 6, described groove 53 is the annular groove coaxial with described axis hole, and on the external diameter G of described groove 53, described bent axle 3, the relation between major axis and the eccentric throw B of short axle of the radius R of crank, described bent axle 3 is G 2* (R-B).
In another embodiment, reciprocating compressor is made up of motor and pump housing two parts, motor is mainly made up of stator 1 and rotor 2, rotor 2 and bent axle 3 interference fit or fix by other means, the pump housing is mainly made up of compression chamber and bent axle 3, compression chamber is to constitute built with piston 6 in frame 4, bent axle 3 is coupled together by connecting rod 5 and piston 6, when rotor 2 band dynamic crankshaft 3 rotates, transmission by connecting rod 5, piston 6 does upper and lower reciprocating motion in compression chamber, and inhaling, under the cooperation of air bleeding valve, completes the suction to cold-producing medium and compression.
Explanation by the multiple embodiments to this utility model connecting rod and reciprocating compressor, it can be seen that this utility model connecting rod and reciprocating compressor embodiment solve when occuring bending and deformation in existing compressor crank shaft operation process, connecting rod forms localized contact with bent axle, cause the problem that parts local anomaly is worn and torn, by arranging groove, connecting rod is made to have certain elasticity, produce deformation under heavy load, increase pressure-bearing surface, improve the stressing conditions of crankshaft-and-connecting-rod, improve compressor reliability, extend compressor service life.
Finally should be noted that: above example is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although this utility model being described in detail with reference to preferred embodiment, those of ordinary skill in the field are it is understood that still can modify to detailed description of the invention of the present utility model or portion of techniques feature carries out equivalent replacement; Without deviating from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that this utility model is claimed.
Claims (11)
1. a connecting rod (5), it is characterized in that, including the first head (52), described first head (52) is provided with the axis hole for wearing bent axle (3), at least one end face of described first head (52) is provided with groove (53), in described bent axle (3) motor process, part between described groove (53) and described axis hole can produce deformation under the radially biased effect of described bent axle (3), to increase the bearing area of described connecting rod (5).
2. connecting rod according to claim 1 (5), it is characterised in that described groove (53) is recessed along the axis direction of described axis hole from the end face of described first head (52).
3. connecting rod according to claim 2 (5), it is characterised in that described groove (53) is the annular groove coaxial with described axis hole.
4. connecting rod according to claim 1 (5), it is characterised in that described groove is provided with elastic layer in (53).
5. connecting rod according to claim 1 (5), it is characterised in that described groove (53) is 0.3*D≤h≤0.6*D along the relation between the degree of depth h and the diameter D of described axis hole of described axis hole axis direction.
6. connecting rod according to claim 1 (5), it is characterized in that, the part between described groove (53) and described axis hole is 0.05*D≤d≤0.1*D along the relation between the minimum thickness d and the diameter D of described axis hole in the direction vertical with described axis hole axis.
7. connecting rod according to claim 1 (5), it is characterised in that described groove (53) is along the rectangular in cross-section of the axis direction of described axis hole, triangle or trapezoidal.
8. connecting rod according to claim 7 (5), it is characterised in that described trapezoidal longer base is positioned at the plane at the end face place of described first head (52).
9. connecting rod according to claim 1 (5), it is characterized in that, the thickness d of the part between described groove (53) and described axis hole is gradually increased along the axis direction of described axis hole from the end face of described first head (52).
10. a reciprocating compressor, it is characterized in that, including bent axle (3), piston (6) and the connecting rod (5) as described in any one of claim 1～9, described connecting rod (5) also includes the second head (51), one end of described bent axle (3) is set in the axis hole of the first head (52) of described connecting rod (5), and described piston (6) is connected with described second head (51) by pin.
11. reciprocating compressor according to claim 10, it is characterized in that, described groove (53) is the annular groove coaxial with described axis hole, the external diameter G of described groove (53), the throw of crankshaft R of described bent axle (3), described bent axle (3) major axis and the eccentric throw B of short axle between relation be G 2* (R-B).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620087193.3U CN205315470U (en) | 2016-01-28 | 2016-01-28 | Connecting rod and reciprocating compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620087193.3U CN205315470U (en) | 2016-01-28 | 2016-01-28 | Connecting rod and reciprocating compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205315470U true CN205315470U (en) | 2016-06-15 |
Family
ID=56187452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620087193.3U Active CN205315470U (en) | 2016-01-28 | 2016-01-28 | Connecting rod and reciprocating compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205315470U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570278A (en) * | 2016-01-28 | 2016-05-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Connecting rod and reciprocating compressor |
-
2016
- 2016-01-28 CN CN201620087193.3U patent/CN205315470U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570278A (en) * | 2016-01-28 | 2016-05-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Connecting rod and reciprocating compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107435622B (en) | Compression mechanism, compressor and refrigeration equipment | |
| CN109958619A (en) | A kind of single cylinder compressor | |
| CN103511258A (en) | Rotary compressor and crank shaft piston assembly thereof | |
| CN204387178U (en) | Leaf spring, yielding support and compressor | |
| CN205315470U (en) | Connecting rod and reciprocating compressor | |
| CN105570278A (en) | Connecting rod and reciprocating compressor | |
| CN110397594B (en) | Support member and horizontal compressor | |
| CN205089613U (en) | Rotary compressor | |
| JP4924596B2 (en) | Hermetic compressor | |
| CN2791302Y (en) | High-performace balancing-type hydraulic vane pump | |
| CN205715229U (en) | Compressor | |
| CN105071584A (en) | Oil bearing pressure plate, oil bearing end cover assembly and motor | |
| CN201661467U (en) | Anti-thrust assembly of rotary compressor | |
| CN210715107U (en) | Pump body subassembly, pump body and compressor | |
| CN110671356B (en) | Sealing structure of horizontal split pump and mounting method thereof | |
| CN204783525U (en) | Compressor | |
| CN104912910A (en) | Crankshaft and compressor | |
| CN204025053U (en) | Compressor and air conditioner | |
| CN208793222U (en) | A kind of compressor pump and the rotary compressor with it | |
| CN205937116U (en) | Rotary compressor pump body subassembly and rotary compressor | |
| CN207161333U (en) | Lower bearing bracket component and screw compressor for screw compressor | |
| CN2447567Y (en) | Crankshaft with high-rigid connecting shaft for double-cylinder rotary compressor | |
| CN205714623U (en) | A kind of plunger displacement pump of band clamp | |
| CN204312281U (en) | For bearing and the compressor of compressor | |
| CN218717501U (en) | Compressor and refrigeration equipment with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |