CN201074639Y - Explosion type combined connecting-rod - Google Patents
Explosion type combined connecting-rod Download PDFInfo
- Publication number
- CN201074639Y CN201074639Y CNU2007200869277U CN200720086927U CN201074639Y CN 201074639 Y CN201074639 Y CN 201074639Y CN U2007200869277 U CNU2007200869277 U CN U2007200869277U CN 200720086927 U CN200720086927 U CN 200720086927U CN 201074639 Y CN201074639 Y CN 201074639Y
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- Prior art keywords
- connecting rod
- shank
- utility
- model
- cap
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- Expired - Lifetime
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Abstract
The utility model relates to an explosive combined connecting rod which is used in a piston type compressor, which comprises a connecting rod body and a connecting rod cover, wherein a connecting ear is designed on the connecting rod body and the connecting rod cover which are integrally connected with the connecting ear by adopting a bolt, particularly, the segment position between the connecting rod body and the connecting rod cover is provided with an easily-broken groove, the butt joint face of the connecting rod body and the connecting rod cover is irregular and unsmooth cross-sections which are mutually inosculated and are produced after separated through a method of exerting external force. The utility model can overcome the problems that the size of a common integral connecting rod is large and the friction force is large, and the butt joint assembly precision of a current split connecting rod can not be guaranteed, and the utility model can largely improve the performance of a compressor.
Description
(1) technical field:
The utility model relates to the improvement technology of piston compressor.
(2) background technique:
At present, what generally use in the freezer compressor industry is medium-sized integrated type connecting rod (Fig. 1) and split type connecting rod (Fig. 2), the formula connecting rod is in order to guarantee its assembling as a whole, the aperture of its connecting rod is general bigger, thereby surface of internal cavity big more frictional force in aperture is just big more, so reduce its frictional force for the frictional force integrated type connecting rod that reduces the integrated type connecting rod just reduces its thickness.And the thickness of connecting rod can not endlessly reduce, and connecting rod strength also reduced rapidly when the thickness of connecting rod reduced.So integrated type connecting rod aperture must be big and thick, inevitable input power is big and be difficult to lower.And can reduce certain thickness for the split type connecting rod, it is made up of connecting rod shank 2, connecting rod cap 1 (referring to Fig. 2), both have engaging lug at the joint design, adopt bolt 3 to fuse, but the employing of both interfaces is finish-machined to ladder surface separately and docks, after fine finishing is finished, be easy to generate dislocation when re-assemblying, cause the connecting rod precise decreasing.
(3) summary of the invention:
The purpose of this utility model will overcome exactly that existing integrated type connecting rod size is big, and frictional force is big, and the problem that split type connecting rod assembly precision is difficult to guarantee provides a kind of exploding jointed connecting rod.
Concrete scheme of the present utility model is: exploding jointed connecting rod is to improve on split type bar linkage structure basis, it includes connecting rod shank and connecting rod cap, design has engaging lug on connecting rod shank and connecting rod cap, the employing bolt fuses, it is characterized in that: segmentation place between connecting rod shank and the connecting rod cap has easy fault trough, and connecting rod shank is to separate the irregular uneven section that coincide mutually that the back produces by the method that applies external force with the interface of connecting rod cap.
In the utility model, the easy fault trough of offering in segmentation place, the both sides of connecting rod cap and connecting rod shank is tapered groove or is similar to the dovetail groove of tapered groove or is similar to the semiellipse type groove of tapered groove.
The utlity model has following characteristics:
1. the utility model blasting type connecting rod is better than the integrated type connecting rod, and the diameter of comparing tie rod holes with monolithic linkage can reduce, the area of effectively reducing friction;
2. the utility model blasting type connecting rod is better than the split type connecting rod, reduces dislocation after the connecting rod assembling with split type connecting rod phase specific energy, guarantees the assembly precision and the operating accuracy of connecting rod;
3. the utility model production technology is more simplified, and has removed the required kerve technology of split type connecting rod from, and can effectively guarantee the merging precision of connecting rod cap and connecting rod shank.
(4) description of drawings:
Fig. 1 is the plan view of integrated type connecting rod;
Fig. 2 is the plan view of split type connecting rod;
Fig. 3 is the plan view of the utility model blasting type connecting rod;
Fig. 4 is the connecting rod shank plan view of the utility model blasting type connecting rod;
Fig. 5 is the connecting rod shank right elevation of the utility model blasting type connecting rod;
Fig. 6 is that the utility model adopts the bloated disconnected working drawing of special tooling.
Among the figure: 1-connecting rod cap, 2-connecting rod shank, 3-bolt, 4-connecting rod cap, 5-connecting rod shank, 6-engaging lug, the easy fault trough of 7-, 8-connecting rod shank section, 9-connecting rod, 10-die holder, 11, the semi-circular expansion sleeve of 12-, 1-oval taper pin.
(5) embodiment:
Its structure of the utility model blasting type connecting rod is referring to Fig. 3,4,5, it is by connecting rod shank 5, connecting rod cap 4, and adopt bolt 3 composition that fuses, particularly connecting rod shank 5 is that the irregular uneven section that coincide mutually of blasting type is (referring to Fig. 5 with 4 liang of interfaces of connecting rod cap, connecting rod shank section 8, the section of connecting rod cap 4 matches with it).
The concrete processing method of the utility model blasting type connecting rod is: at first adopt casting method to make connecting rod cap 4 and be unitary whole formula aluminum connecting rod foundry goods 9 with connecting rod shank 5, simultaneously respectively cast out the easy fault trough 7 of a whole circle (this easy fault trough 7 also can open a section or divide multistage to offer) in both sides segmentation place of connecting rod cap 4 and connecting rod shank 5, easily the shape of fault trough 7 is preferably tapered groove, also can be the dovetail groove that is similar to tapered groove or is similar to the semiellipse type groove of tapered groove.Again above-mentioned monolithic linkage 9 is put in the special-purpose die holder 10, two the semicircle expansion sleeves 11,12 of in the macropore of connecting rod 9, packing into, the outer wall of two expansion sleeves 11,12 and connecting rod macropore coincide, the middle cone shape hole that forms, in the middle of two expansion sleeves 11,12, import an oval taper pin 13 in the cone shape hole, and exert pressure, thereby connecting rod cap 4 and connecting rod shank 5 are separated at easy fault trough 7 place's blasting types at oval taper pin 13 tops.The section of connecting rod cap 4 and connecting rod shank 5 is not reprocessed after disconnecting, and forms the rough section that coincide mutually of nature.Adopt bolt 3 with connecting rod cap 4 and the connecting rod shank 5 fine finishing finished product that fuses at last.
Connecting rod cap 4 can also adopt modes such as liquid plastics expansion process, hydraulic pressure separation method, pressurized gas separation method, chemical gas explosion method, high-pressure hydraulic separation method, mechanical stretch break method to realize with the separating method of connecting rod shank 5 in the utility model.
Claims (2)
1. exploding jointed connecting rod, include connecting rod shank and connecting rod cap, design has engaging lug on connecting rod shank and connecting rod cap, the employing bolt fuses, it is characterized in that: segmentation place between connecting rod shank and the connecting rod cap has easy fault trough, and connecting rod shank is to separate the irregular uneven section that coincide mutually that the back produces by the method that applies external force with the interface of connecting rod cap.
2. exploding jointed connecting rod according to claim 1 is characterized in that: the easy fault trough of offering in segmentation place, the both sides of connecting rod cap and connecting rod shank is tapered groove or is similar to the dovetail groove of tapered groove or is similar to the semiellipse type groove of tapered groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200869277U CN201074639Y (en) | 2007-09-12 | 2007-09-12 | Explosion type combined connecting-rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200869277U CN201074639Y (en) | 2007-09-12 | 2007-09-12 | Explosion type combined connecting-rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201074639Y true CN201074639Y (en) | 2008-06-18 |
Family
ID=39519902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200869277U Expired - Lifetime CN201074639Y (en) | 2007-09-12 | 2007-09-12 | Explosion type combined connecting-rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201074639Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454592A (en) * | 2010-10-29 | 2012-05-16 | 四川宏华石油设备有限公司 | Connecting rod |
| CN103143821A (en) * | 2011-12-06 | 2013-06-12 | 沈阳鼓风机集团股份有限公司 | Fixed-position welding process for casting titanium alloy connecting rod |
-
2007
- 2007-09-12 CN CNU2007200869277U patent/CN201074639Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454592A (en) * | 2010-10-29 | 2012-05-16 | 四川宏华石油设备有限公司 | Connecting rod |
| CN102454592B (en) * | 2010-10-29 | 2015-04-01 | 四川宏华石油设备有限公司 | Connecting rod |
| CN103143821A (en) * | 2011-12-06 | 2013-06-12 | 沈阳鼓风机集团股份有限公司 | Fixed-position welding process for casting titanium alloy connecting rod |
| CN103143821B (en) * | 2011-12-06 | 2015-09-09 | 沈阳鼓风机集团股份有限公司 | A kind of positioning welding technique of cast titanium alloy connecting rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080618 |
|
| CX01 | Expiry of patent term |