CN213870715U - Connecting rod for piston of aero-engine - Google Patents
Connecting rod for piston of aero-engine Download PDFInfo
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- CN213870715U CN213870715U CN202022462554.7U CN202022462554U CN213870715U CN 213870715 U CN213870715 U CN 213870715U CN 202022462554 U CN202022462554 U CN 202022462554U CN 213870715 U CN213870715 U CN 213870715U
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- titanium alloy
- alloy shell
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Abstract
The utility model discloses a connecting rod for aeroengine piston, including the titanium alloy shell the both ends of titanium alloy shell are equipped with the through-hole with piston and crank connection respectively, the through-hole runs through the titanium alloy shell be equipped with the steel bushing in the through-hole, the titanium alloy shell is split type titanium alloy shell, including last titanium alloy shell and lower titanium alloy shell go up the titanium alloy shell and be equipped with the strengthening rib in the titanium alloy shell down for increase the intensity of titanium alloy shell go up the titanium alloy shell and be equipped with adapting unit down on the titanium alloy shell for with go up the titanium alloy shell and connect into a whole with lower titanium alloy shell. The utility model has simple structure and reasonable design; the connecting rod adopts a titanium alloy shell, so that the overall weight of the connecting rod is lightened; the die-casting die is formed by vacuum die-casting in a casting process, so that the center distance between the two holes can be better ensured to be within a reasonable range; the reinforcing ribs are arranged in the titanium alloy shell, so that the overall strength of the connecting rod is improved; the titanium alloy shell adopts a split structure and is connected and fastened into a whole through a connecting part.
Description
Technical Field
The utility model belongs to the technical field of the aeroengine technique and specifically relates to a connecting rod for aeroengine piston is related to.
Background
The piston connecting rod is a core motion mechanism of the engine and is used for connecting the piston and the crankshaft, so that energy acting on the piston is transmitted to the crankshaft, reciprocating motion of the piston is converted into rotary motion of the crankshaft, and work is applied to external output; the piston is subjected to thermal and force loads resulting from combustion temperatures and burst pressures as it reciprocates. With the continuous development of engine technology, the degree of compactness and integration of the engine is higher and higher, and the energy density is higher and higher. In such cases, the pistons are exposed to more severe operating environments, and piston cooling and thermal fatigue are also important in current piston designs. The piston connecting rod is a rod which is respectively hinged with the driving member and the driven member in the movement process of the mechanism so as to transmit movement and force. The working environment of the piston connecting rod requires that the piston connecting rod has higher strength and fatigue resistance, and also requires that the piston connecting rod has enough rigidity and toughness, but most of the existing piston connecting rods are integrally processed and formed, the weight is heavier, the strength cannot meet the requirement of continuous high-load operation, and the fatigue resistance is poor.
Disclosure of Invention
In order to overcome the not enough of above-mentioned prior art, the utility model provides an aeroengine is connecting rod for piston, the utility model discloses a following technical scheme: the utility model provides a connecting rod for aeroengine piston, includes the titanium alloy shell the both ends of titanium alloy shell are equipped with the through-hole of being connected with piston and crank respectively, the through-hole runs through the titanium alloy shell be equipped with the steel bushing in the through-hole, the titanium alloy shell is split type titanium alloy shell, including last titanium alloy shell and lower titanium alloy shell go up the titanium alloy shell and be equipped with the strengthening rib down in the titanium alloy shell for increase the intensity of connecting rod go up and be equipped with adapting unit on titanium alloy shell and the lower titanium alloy shell, be used for connecting into a whole with last titanium alloy shell and lower titanium alloy shell.
Preferably, the reinforcing ribs are arranged in the upper titanium alloy shell and the lower titanium alloy shell in a staggered mode, and the number of the reinforcing ribs can be different according to the size, so that the overall strength of the titanium alloy shell is improved.
Preferably, the connecting member includes a protrusion, a groove and a set screw, the protrusion is disposed on the upper titanium alloy shell, the groove is disposed on the lower titanium alloy shell, the protrusion and the groove are matched with each other, the set screw fastens the upper titanium alloy shell and the lower titanium alloy shell into a whole, and the number of the protrusion and the groove can be selected according to the size and is not particularly limited.
Preferably, the shape of the protrusion is irregular, so that the upper titanium alloy shell and the lower titanium alloy shell are tightly fixed and are not easy to fall off and loosen.
Preferably, both ends of the titanium alloy shell are smooth curved surfaces, and the middle part of the titanium alloy shell is inwardly contracted, so that the titanium alloy shell is wide at both ends and narrow in the middle, and thick at both ends and thin in the middle.
Preferably, limiting grooves are formed in the through holes at the two ends of the titanium alloy shell and used for fixing and limiting the steel sleeve, the number of the limiting grooves is 6, the limiting grooves are uniformly distributed in the through holes, so that the contact area between the steel sleeve and the titanium alloy shell can be increased, the steel sleeve and the titanium alloy shell are guaranteed to be tightly fixed, and limiting blocks matched with the limiting grooves are arranged on the outer circumferential surface of the steel sleeve.
Compared with the prior art, the beneficial effects of the utility model are that: 1. the structure is simple, and the design is reasonable; 2. the connecting rod adopts a titanium alloy shell, so that the overall weight of the connecting rod is lightened; 3. the die-casting die is formed by vacuum die-casting in a casting process, so that the center distance between the two holes can be better ensured to be within a reasonable range; 4. the reinforcing ribs are arranged in the titanium alloy shell, so that the overall strength of the connecting rod is improved; 5. the titanium alloy shell adopts a split structure, so that casting is convenient, and the split structure is connected and fastened into a whole through a connecting part.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the upper titanium alloy shell of the present invention.
Fig. 3 is a schematic structural diagram of the lower titanium alloy shell of the present invention.
Fig. 4 is a schematic structural view of the steel jacket of the present invention.
Fig. 5 is a schematic side view of the present invention.
Wherein: 1. the titanium alloy shell comprises a titanium alloy shell body, 11 parts of an upper titanium alloy shell body, 12 parts of a lower titanium alloy shell body, 13 parts of reinforcing ribs, 2 parts of a steel sleeve, 3 parts of through holes, 4 parts of connecting components, 41 parts of protrusions, 42 parts of grooves, 43 parts of set screws, 5 parts of limiting grooves and 6 parts of limiting blocks.
Detailed Description
The invention will now be further described by way of non-limiting examples with reference to the accompanying drawings:
specific example 1: the connecting rod for the piston of the aircraft engine comprises a titanium alloy shell 1, through holes 3 connected with the piston and a crank are respectively formed in two ends of the titanium alloy shell 1, the through holes 3 penetrate through the titanium alloy shell 1, steel sleeves 2 are arranged in the through holes 3, the titanium alloy shell 1 is a split type titanium alloy shell and comprises an upper titanium alloy shell 11 and a lower titanium alloy shell 12, reinforcing ribs 13 are arranged in the upper titanium alloy shell 11 and the lower titanium alloy shell 12 and used for increasing the strength of the titanium alloy shell 1, and connecting parts 4 are arranged on the upper titanium alloy shell 11 and the lower titanium alloy shell 12 and used for connecting the upper titanium alloy shell 11 and the lower titanium alloy shell 12 into a whole.
Specific example 2: the reinforcing ribs 13 are arranged in the upper titanium alloy shell 11 and the lower titanium alloy shell 12 in a staggered manner, adjacent reinforcing ribs are arranged in a staggered manner, the spaced reinforcing ribs can be arranged in parallel according to requirements, when the upper titanium alloy shell 11 and the lower titanium alloy shell 12 are integrally spliced, the reinforcing ribs in the upper titanium alloy shell 11 and the lower titanium alloy shell 12 cannot influence each other, and the rest of the structure is the same as that in embodiment 1.
Specific example 3: the connecting component 4 comprises a protrusion 41, a groove 42 and a set screw 43, the protrusion 41 is arranged on the upper titanium alloy shell 11, the groove 42 is arranged on the lower titanium alloy shell 12, the protrusion 41 and the groove 42 are matched with each other, the set screw 43 fastens the upper titanium alloy shell 11 and the lower titanium alloy shell 12 into a whole, and the set screw can fix the middle position of the titanium alloy shell 1 and also can fix the two end parts of the titanium alloy shell 1.
The shape of the protrusion 41 is irregular to enable the upper titanium alloy shell 11 and the lower titanium alloy shell 12 to be tightly fixed and not to easily fall off and loosen, and the shape in the figure can be selected, so that the attaching area can be increased, and the connecting effect can be ensured.
The two ends of the titanium alloy shell 1 are smooth curved surfaces, and the middle part of the titanium alloy shell 1 is inwardly contracted, so that the titanium alloy shell 1 is wide at two ends and narrow in the middle and is similar to a bone in shape.
Limiting grooves 5 are formed in through holes 3 at two ends of the titanium alloy shell 1 and used for fixing and limiting the steel sleeve 2, the number of the limiting grooves 5 is 6, the limiting grooves 5 are uniformly distributed in the through holes 3, limiting blocks 6 matched with the limiting grooves 5 are arranged on the outer circumferential surface of the steel sleeve 2, and the rest of the structure is the same as that of the specific embodiment 2.
The working principle is as follows: when the titanium alloy shell is used, the protrusion of the upper titanium alloy shell is placed in the groove of the lower titanium alloy shell, so that the upper titanium alloy shell and the lower titanium alloy shell are tightly connected into a whole, then the upper titanium alloy shell and the lower titanium alloy shell which are spliced are fastened together by using the set screw, so that the upper titanium alloy shell and the lower titanium alloy shell cannot be loosened or separated under the high-strength load operation, and then the limiting block of the steel sleeve is placed in the limiting groove of the titanium alloy shell, so that the titanium alloy shell and the steel sleeve are spliced into a whole and can be matched with a piston and a crank for use.
The above embodiments have explained the present invention in detail. Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions, reductions, and substitutions made by the person skilled in the art within the spirit of the present invention also belong to the protection scope of the present invention.
Claims (6)
1. A connecting rod for an aircraft engine piston is characterized in that: the titanium alloy shell is a split type titanium alloy shell and comprises an upper titanium alloy shell and a lower titanium alloy shell, wherein reinforcing ribs are arranged in the upper titanium alloy shell and the lower titanium alloy shell and used for increasing the strength of the titanium alloy shell, and connecting parts are arranged on the upper titanium alloy shell and the lower titanium alloy shell and used for connecting the upper titanium alloy shell and the lower titanium alloy shell into a whole.
2. The connecting rod for an aircraft engine piston according to claim 1, wherein: the reinforcing ribs are arranged in the upper titanium alloy shell and the lower titanium alloy shell in a staggered mode.
3. The connecting rod for an aircraft engine piston according to claim 1, wherein: the connecting component comprises a protrusion, a groove and a set screw, the protrusion is arranged on the upper titanium alloy shell, the groove is arranged on the lower titanium alloy shell, the protrusion and the groove are matched with each other, and the set screw fastens the upper titanium alloy shell and the lower titanium alloy shell into a whole.
4. A connecting rod for an aircraft engine piston according to claim 3, wherein: the shape of the protrusion is irregular, so that the upper titanium alloy shell and the lower titanium alloy shell are tightly fixed and are not easy to fall off and loosen.
5. The connecting rod for an aircraft engine piston according to claim 1, wherein: the two ends of the titanium alloy shell are in smooth curved surface shapes, and the middle part of the titanium alloy shell is inwardly contracted.
6. A connecting rod for an aircraft engine piston according to any one of claims 1 to 5, wherein: limiting grooves are formed in the through holes at the two ends of the titanium alloy shell and used for fixing and limiting the steel sleeve, the number of the limiting grooves is 6, the limiting grooves are uniformly distributed in the through holes, and limiting blocks matched with the limiting grooves are arranged on the outer circumferential surface of the steel sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022462554.7U CN213870715U (en) | 2020-10-30 | 2020-10-30 | Connecting rod for piston of aero-engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022462554.7U CN213870715U (en) | 2020-10-30 | 2020-10-30 | Connecting rod for piston of aero-engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213870715U true CN213870715U (en) | 2021-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022462554.7U Active CN213870715U (en) | 2020-10-30 | 2020-10-30 | Connecting rod for piston of aero-engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213870715U (en) |
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2020
- 2020-10-30 CN CN202022462554.7U patent/CN213870715U/en active Active
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