CN214617464U - Integrated dual-lubrication connecting rod bushing - Google Patents
Integrated dual-lubrication connecting rod bushing Download PDFInfo
- Publication number
- CN214617464U CN214617464U CN202120981352.5U CN202120981352U CN214617464U CN 214617464 U CN214617464 U CN 214617464U CN 202120981352 U CN202120981352 U CN 202120981352U CN 214617464 U CN214617464 U CN 214617464U
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- oil
- connecting rod
- hole
- bushing
- graphite
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model provides an integral type dual lubrication connecting rod bush, including the bush body of tube-shape, set up the oilhole that corresponds with the oil duct of connecting rod when the bush body is installed on the bush body section of thick bamboo wall, still include and be equipped with the graphite slide hole on the bush body section of thick bamboo wall, oilhole and graphite slide hole are 180 degrees intervals setting in bush body circumferential direction, oilhole axis and graphite slide hole axis are coaxial each other, oilhole axis and graphite slide hole axis correspond to bush body axial direction's central position; the inner wall of the bush body is provided with an inner groove which is arranged along the circumferential direction of the bush body, and the inner groove is positioned in the middle of the axial direction of the bush body and is connected with the oil hole and the graphite slide hole. The utility model has the advantages of be applicable to dual lubricated connecting rod, the reliability is high, when equipment oil feeding system breaks down, carries out emergent lubrication to the connecting rod friction pair.
Description
Technical Field
The utility model relates to a mechanical equipment's connecting rod field, concretely relates to dual lubricated connecting rod bush of integral type.
Background
The connecting rod is generally applied to mechanical equipment such as an internal combustion engine, a piston type air compressor and the like, wherein most connecting rods are provided with oil ducts for ensuring the lubrication between the connecting rod and a piston pin and the lubrication between the connecting rod and a crankshaft, and lubricating oil is conveyed to a small end of the connecting rod through a large end of the connecting rod through the crankshaft oil duct on the crankshaft to realize lubrication, so that a good lubricating oil way is established;
generally speaking, the lubricating effect of an oil way is optimal when the oil supply is sufficient, but when the equipment is in actual use, oil way faults can inevitably occur, such as blockage, oil pump damage and oil leakage of an oil pipe, the oil way is lack of oil supply pressure, so that the condition of oil shortage between friction pairs is caused, the connecting rod bushing and the bearing bush of the big end and the small end of the connecting rod are slightly damaged, the connecting rod bushing and the bearing bush are seriously locked, the piston pin and the crankshaft are directly damaged together, great inconvenience is brought to subsequent maintenance, and the maintenance cost is greatly improved.
SUMMERY OF THE UTILITY MODEL
Based on the problem, the utility model aims to provide a be applicable to dual lubricated connecting rod, the reliability is high, when equipment oil feeding system breaks down, carries out emergent lubricated dual lubricated connecting rod bush of integral type to connecting rod friction pair.
Aiming at the problems, the following technical scheme is provided: an integrated double-lubrication connecting rod bushing comprises a cylindrical bushing body, wherein an oil hole corresponding to an oil duct of a connecting rod when the bushing body is installed is formed in the cylinder wall of the bushing body, the bushing body further comprises a graphite slide hole formed in the cylinder wall of the bushing body, the oil hole and the graphite slide hole are arranged in the circumferential direction of the bushing body at intervals of 180 degrees, the axes of the oil hole and the graphite slide hole are coaxial with each other, and the axes of the oil hole and the graphite slide hole correspond to the central position of the axial direction of the bushing body; the inner wall of the bush body is provided with an inner groove which is arranged along the circumferential direction of the bush body, and the inner groove is positioned in the middle of the axial direction of the bush body and is connected with the oil hole and the graphite slide hole.
In the structure, when the bushing body is arranged in a bushing hole on a connecting rod small head of a connecting rod, an oil hole of the bushing body is aligned with an oil duct of the connecting rod, lubricating oil in a crankshaft oil duct on a crankshaft is led into an inner groove of a bushing body through a connecting rod large head, when an equipment lubricating system works normally, the lubricating oil enters the inner groove lubricating bushing body and simultaneously enters a graphite slide hole to push a graphite block arranged on the inner wall of the bushing hole, so that the graphite block is retracted into the connecting rod small head and compresses a spring, the graphite block is prevented from being directly contacted with a piston pin, when the equipment lubricating system breaks down, the pressure of the lubricating oil is reduced or lost, the spring pushes the graphite block to enter the graphite slide hole to be contacted with the piston pin, oil-free lubrication is realized, the equipment can continuously run in an emergency under an oil-deficient state, and a series of problems that the connecting rod is seized with the piston pin, worn or dead due to oil shortage before a person finds an oil-way fault are avoided, the loss caused by equipment failure is reduced; because the oil hole and the graphite slide hole are arranged in the circumferential direction of the bushing body at 180 degrees, the oil hole is aligned with the oil duct, the axis of the graphite slide hole is just coaxial with the oil duct, and when the connecting rod is processed, the accommodating hole for installing the graphite block and the spring on the small connecting rod head can be drilled while the oil duct is drilled from the large connecting rod head directly through the drill bit, so that the connecting rod is convenient to adapt to the processing technology of the connecting rod.
The utility model discloses further set up to, interior ditch both sides are equipped with the cloth oil groove of seting up toward bush axial direction both ends, cloth oil groove and interior ditch intercommunication.
In the structure, the oil distribution groove can uniformly distribute the lubricating oil between the bush body and the piston pin when the lubricating oil is normally supplied; when lubricating oil supply breaks down, the oil distribution groove can assist the tiny graphite powder generated when the coating graphite block rubs with the piston pin, and the lubricating effect of the graphite block is improved
The utility model discloses further set up to, the oil distribution groove is a plurality of, sets up along bush body circumference direction interval.
In the structure, the oil distribution grooves arranged at intervals along the circumferential direction of the lining body can further ensure the uniformity of the graphite powder coating.
The utility model discloses further set up as, the length at the cloth oil groove both ends of interior ditch groove both sides is less than the axial length of the bush body.
In the above structure, the problem that the oil pressure cannot be established due to the leakage of the lubricating oil from the end of the oil distribution groove is avoided.
The utility model is further arranged that the oil hole is positioned between the adjacent oil distribution grooves in the circumferential direction of the bush body; the graphite slide hole is positioned between adjacent oil distribution grooves in the circumferential direction of the lining body.
In the structure, the oil hole and the graphite slide hole are perpendicular to the axis of the connecting rod when the bushing body is installed, so that the bushing body provided with the oil hole and the graphite slide hole is maximum in stress when the connecting rod works, and the oil distribution groove is formed, so that lubrication of lubricating oil and graphite powder is not facilitated, and the supporting strength of the bushing body is easily weakened.
The utility model discloses further set up to, bush body both ends face is equipped with the radius with the internal section of thick bamboo wall of bush, urceolus wall juncture.
In the structure, the rounding is convenient for pressing the bush body into the bush hole of the connecting rod and is also convenient for mounting the piston pin.
The utility model discloses further set up to, oilhole, graphite slide opening internal diameter are not more than interior slot width.
In the structure, the influence of the overlarge oil hole and the graphite slide hole inner diameter on the strength and the supporting performance of the bushing body is avoided.
The utility model discloses further set up to, the groove depth is dark in the cloth oil groove depth less than or equal to.
In the structure, the oil distribution groove is used for distributing oil, so that the groove depth does not need to be too deep to influence the strength and the supporting performance of the bushing body.
The utility model discloses further set up to, the cloth oil groove cross-section is semi-circular, its cell wall of one end and terminal surface juncture that the interior slot was kept away from to the cloth oil groove are equipped with the radius of a circle.
In the structure, the oil distribution groove with the semicircular section is beneficial to lubricating oil and graphite scraps to enter between the friction surfaces for lubrication, and the stress at the end part of the oil distribution groove can be reduced by rounding the arc.
The utility model has the advantages that: when the bushing body is arranged in a bushing hole on a small connecting rod head of a connecting rod, an oil hole of the bushing body is aligned with an oil duct of the connecting rod, lubricating oil in a crankshaft oil duct on a crankshaft is led into an inner groove of the bushing body through a large connecting rod head, when an equipment lubricating system works normally, the lubricating oil enters the inner groove lubricating bushing body and simultaneously enters a graphite slide hole to push a graphite block arranged on the inner wall of the bushing hole, so that the graphite block is retracted into the small connecting rod head and compresses a spring, the graphite block is prevented from being directly contacted with a piston pin, when the equipment lubricating system breaks down, the pressure of the lubricating oil is reduced or loses pressure, the spring pushes the graphite block to enter the graphite slide hole to be contacted with the piston pin, oil-free lubrication is realized, the equipment can continuously run in an oil-deficient state, and a series of problems that the bushing body, the piston pin are abraded or locked due to oil shortage of the connecting rod before a person finds out an oil duct fault of the oil duct are avoided, the loss caused by equipment failure is reduced; because the oil hole and the graphite slide hole are arranged in the circumferential direction of the bushing body at 180 degrees, the oil hole is aligned with the oil duct, the axis of the graphite slide hole is just coaxial with the oil duct, and when the connecting rod is processed, the accommodating hole for installing the graphite block and the spring on the small connecting rod head can be drilled while the oil duct is drilled from the large connecting rod head directly through the drill bit, so that the connecting rod is convenient to adapt to the processing technology of the connecting rod.
Drawings
Fig. 1 is a schematic view of the overall structure of the connecting rod when the connecting rod is installed on the connecting rod of the present invention.
Fig. 2 is a schematic diagram of a half-section structure of the connecting rod when the utility model is installed on the connecting rod.
Fig. 3 is a schematic view of the explosion structure when the present invention is installed on the connecting rod.
Fig. 4 is a schematic view of the full-section structure of the present invention.
Fig. 5 is a schematic sectional view of the present invention.
The reference numbers in the figures mean: 10-a bushing body; 11-oil hole; 12-a graphite slide hole; 13-inner groove; 14-oil distribution groove; 141-inverted circular arc; 15-rounding; 20-a connecting rod; 21-oil channel; 22-connecting rod small end; 221-bushing holes; 23-connecting rod big end; 24-graphite blocks; 25-a spring; 26-accommodating holes.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1 to 5, the integrated dual lubrication connecting rod bushing shown in fig. 1 to 5 includes a cylindrical bushing body 10, an oil hole 11 corresponding to an oil passage 21 of a connecting rod 20 when the bushing body 10 is mounted is formed in a cylindrical wall of the bushing body 10, and a graphite slide hole 12 formed in the cylindrical wall of the bushing body 10, wherein the oil hole 11 and the graphite slide hole 12 are arranged at an interval of 180 degrees in a circumferential direction of the bushing body 10, an axis of the oil hole 11 is coaxial with an axis of the graphite slide hole 12, and an axis of the oil hole 11 and an axis of the graphite slide hole 12 correspond to a central position of the bushing body 10 in an axial direction; the inner wall of the bush body 10 is provided with an inner groove 13 which is arranged along the circumferential direction of the bush body, and the inner groove 13 is positioned in the middle of the bush body 10 in the axial direction and is connected with the oil hole 11 and the graphite slide hole 12.
In the above structure, when the bushing body 10 is installed in the bushing hole 221 on the connecting rod small end 22 of the connecting rod 20, the oil hole 11 is aligned with the oil passage 21 of the connecting rod 20, the lubricating oil in the crankshaft oil passage (not shown in the figure) on the crankshaft (not shown in the figure) is introduced into the inner groove 13 of the bushing body 10 through the connecting rod big end 23, when the lubricating system of the equipment normally works, the lubricating oil enters the inner groove 13 to lubricate the bushing body 10 and enters the graphite slide hole 12, the graphite block 24 installed on the inner wall of the bushing hole 221 is pushed, the graphite block 24 is retracted into the connecting rod small end 22 and compresses the spring 25, the graphite block 24 is prevented from directly contacting with the piston pin (not shown in the figure), when the lubricating system of the equipment fails, the pressure of the lubricating oil drops or loses pressure, at this time, the spring 25 pushes the graphite block 24 to enter the graphite slide hole 12 to contact with the piston pin, so as to realize oil-free lubrication, thereby ensuring that the equipment can continue to run in emergency under the oil-lacking state, the problems that the bushing body 10 and the piston pin are abraded or locked due to oil shortage of the connecting rod 20 before the oil circuit fault is found by personnel are avoided, and the loss caused by equipment fault is reduced; because the oil hole 11 and the graphite slide hole 12 are oppositely arranged at 180 degrees in the circumferential direction of the bushing body 10, when the oil hole 11 is aligned with the oil passage 21, the axis of the graphite slide hole 12 is just coaxial with the oil passage 21, when the connecting rod 20 is processed, the oil passage 21 can be drilled from the large head 23 of the connecting rod directly through a drill, and meanwhile, the accommodating hole 26 for installing the graphite block 24 and the spring 25 on the small head 22 of the connecting rod can be drilled, so that the connecting rod 20 can be conveniently matched with the processing technology of the connecting rod 20.
In this embodiment, oil distribution grooves 14 formed at both ends of the inner groove 13 in the axial direction of the bushing body 10 are formed, and the oil distribution grooves 14 are communicated with the inner groove 13.
In the above structure, the oil distribution groove 14 can uniformly distribute the lubricating oil between the bush body 10 and the piston pin when the supply of the lubricating oil is normal; when lubricating oil supply fails, the oil distribution groove 14 can assist in coating fine graphite powder generated when the graphite block 24 rubs with a piston pin, and the lubricating effect of the graphite block 24 is improved
In this embodiment, the oil distribution grooves 14 are a plurality of grooves arranged at intervals along the circumferential direction of the bushing body 10.
In the above structure, the oil distribution grooves 14 provided at intervals in the circumferential direction of the liner body 10 can further ensure the uniformity of the graphite powder coating.
In this embodiment, the lengths of the two ends of the oil distribution grooves 14 on the two sides of the inner groove 13 are smaller than the axial length of the bushing body 10.
In the above configuration, the oil pressure is prevented from being unable to be established by the leakage of the lubricating oil from the end of the oil distribution groove 14.
In this embodiment, the oil holes 11 are located between adjacent oil distribution grooves 14 in the circumferential direction of the bushing body 10; the graphite slide holes 12 are positioned between adjacent oil distribution grooves 14 in the circumferential direction of the bushing body 10.
In the above structure, the oil hole 11 and the graphite sliding hole 12 are perpendicular to the axis of the connecting rod 20 when the bushing body 10 is installed, so that the connecting rod 20 is in operation, the bushing body 10 provided with the oil hole 11 and the graphite sliding hole 12 bears the largest stress, and the oil distribution groove 14 is provided, which is not beneficial to lubricating oil and graphite powder, and is easy to weaken the supporting strength of the bushing body 10.
In this embodiment, the junction between the two end faces of the bushing body 10 and the inner and outer cylinder walls of the bushing body 10 is provided with a radius 15.
In the above configuration, the radius 15 facilitates pressing the bushing body 10 into the bushing hole 221 of the connecting rod 20 and also facilitates mounting of the piston pin.
In this embodiment, the inner diameters of the oil hole 11 and the graphite slide hole 12 are not larger than the groove width of the inner groove 13.
In the structure, the influence of the overlarge inner diameters of the oil hole 11 and the graphite slide hole 12 on the strength and the supporting performance of the bushing body 10 is avoided.
In this embodiment, the groove depth of the oil distribution groove 14 is less than or equal to the groove depth of the inner groove 13.
In the above structure, the oil distribution groove 14 is used for distributing oil, so the groove depth does not need to be set too deep to affect the strength and the supporting performance of the bushing body 10.
In this embodiment, the cross section of the oil distribution groove 14 is semicircular, and a reverse arc 141 is disposed at a junction between a groove wall and an end surface of one end of the oil distribution groove 14 away from the inner groove 13.
In the above structure, the oil distribution groove 14 with a semicircular cross section is beneficial to lubricating oil and graphite powder entering between the friction surfaces for lubrication, and the inverted arc 141 can reduce the stress at the end of the oil distribution groove 14.
The utility model has the advantages that: when the bushing body 10 is installed in a bushing hole 221 on a connecting rod small head 22 of a connecting rod 20, an oil hole 11 of the bushing body is aligned with an oil duct 21 of the connecting rod 20, lubricating oil in a crankshaft oil duct (not shown) on a crankshaft (not shown) is led into an inner groove 13 of the bushing body 10 through a connecting rod big head 23, when an equipment lubricating system works normally, the lubricating oil enters the inner groove 13 to lubricate the bushing body 10 and simultaneously enters a graphite sliding hole 12 to push a graphite block 24 installed on the inner wall of the bushing hole 221, so that the graphite block 24 is retracted into the connecting rod small head 22 and compresses a spring 25, the graphite block 24 is prevented from directly contacting a piston pin (not shown), when the equipment lubricating system fails, the pressure of the lubricating oil is reduced or loses pressure, at the moment, the spring 25 pushes the graphite block 24 to enter the graphite sliding hole 12 to contact the piston pin, oil-free lubrication is realized, and the equipment can continue emergency operation under the oil-lacking state, the problems that the bushing body 10 and the piston pin are abraded or locked due to oil shortage of the connecting rod 20 before the oil circuit fault is found by personnel are avoided, and the loss caused by equipment fault is reduced; because the oil hole 11 and the graphite slide hole 12 are oppositely arranged at 180 degrees in the circumferential direction of the bushing body 10, when the oil hole 11 is aligned with the oil passage 21, the axis of the graphite slide hole 12 is just coaxial with the oil passage 21, when the connecting rod 20 is processed, the oil passage 21 can be drilled from the large head 23 of the connecting rod directly through a drill, and meanwhile, the accommodating hole 26 for installing the graphite block 24 and the spring 25 on the small head 22 of the connecting rod can be drilled, so that the connecting rod 20 can be conveniently matched with the processing technology of the connecting rod 20.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations of the above assumption should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a dual lubricated connecting rod bush of integral type, includes the bush body of tube-shape, its characterized in that: the bushing body is provided with an oil hole corresponding to an oil duct of the connecting rod when the bushing body is installed on the cylinder wall of the bushing body, and the bushing body further comprises a graphite sliding hole formed in the cylinder wall of the bushing body, wherein the oil hole and the graphite sliding hole are arranged in the circumferential direction of the bushing body at 180-degree intervals, the axis of the oil hole is coaxial with the axis of the graphite sliding hole, and the axis of the oil hole and the axis of the graphite sliding hole correspond to the central position of the axial direction of the bushing body; the inner wall of the bush body is provided with an inner groove which is arranged along the circumferential direction of the bush body, and the inner groove is positioned in the middle of the axial direction of the bush body and is connected with the oil hole and the graphite slide hole.
2. The integrated dual lubrication connecting rod bushing according to claim 1, wherein: and oil distributing grooves which are formed towards the two ends of the axial direction of the bushing body are formed in the two sides of the inner groove and are communicated with the inner groove.
3. The integrated dual lubrication connecting rod bushing according to claim 2, wherein: the oil distribution grooves are arranged at intervals along the circumferential direction of the lining body.
4. An integrated dual lubrication connecting rod bushing according to claim 2 or 3, wherein: the lengths of the two ends of the oil distribution grooves on the two sides of the inner groove are smaller than the axial length of the bushing body.
5. The integrated dual lubrication connecting rod bushing according to claim 3, wherein: the oil holes are positioned between adjacent oil distribution grooves in the circumferential direction of the bush body; the graphite slide hole is positioned between adjacent oil distribution grooves in the circumferential direction of the lining body.
6. The integrated dual lubrication connecting rod bushing according to claim 1, wherein: and rounding circles are arranged at the junctions of the two end surfaces of the bushing body and the inner and outer cylinder walls of the bushing body.
7. The integrated dual lubrication connecting rod bushing according to claim 1, wherein: the inner diameters of the oil hole and the graphite slide hole are not more than the width of the inner groove.
8. The integrated dual lubrication connecting rod bushing according to claim 2, wherein: the depth of the oil distribution groove is less than or equal to that of the inner groove.
9. The integrated dual lubrication connecting rod bushing according to claim 2, wherein: the section of the oil distribution groove is semicircular, and an inverted arc is arranged at the junction of the groove wall and the end face of one end of the oil distribution groove, which is far away from the inner groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120981352.5U CN214617464U (en) | 2021-05-10 | 2021-05-10 | Integrated dual-lubrication connecting rod bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120981352.5U CN214617464U (en) | 2021-05-10 | 2021-05-10 | Integrated dual-lubrication connecting rod bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214617464U true CN214617464U (en) | 2021-11-05 |
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ID=78407273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120981352.5U Expired - Fee Related CN214617464U (en) | 2021-05-10 | 2021-05-10 | Integrated dual-lubrication connecting rod bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214617464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2778261C1 (en) * | 2022-01-25 | 2022-08-17 | Алексей Игоревич Буянов | Bushing of the lower head of the trailer connecting rod of v-shaped internal combustion engines |
-
2021
- 2021-05-10 CN CN202120981352.5U patent/CN214617464U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2778261C1 (en) * | 2022-01-25 | 2022-08-17 | Алексей Игоревич Буянов | Bushing of the lower head of the trailer connecting rod of v-shaped internal combustion engines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211105 |