CN210461453U - Anti-impact diesel engine elastic damping connecting device with adjustable axial gap - Google Patents
Anti-impact diesel engine elastic damping connecting device with adjustable axial gap Download PDFInfo
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- CN210461453U CN210461453U CN201921311077.5U CN201921311077U CN210461453U CN 210461453 U CN210461453 U CN 210461453U CN 201921311077 U CN201921311077 U CN 201921311077U CN 210461453 U CN210461453 U CN 210461453U
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Abstract
The utility model relates to a diesel engine technical field provides an anti-impact diesel engine elastic damping connecting device with axial gap adjustable. The provided anti-impact diesel engine elastic damping connecting device with adjustable axial clearance is provided with a flywheel shell sleeved on a crankshaft of a diesel engine; one end in the flywheel shell is provided with a flywheel sleeved at the end of the crankshaft; an elastic damping coupling positioned between the housing and the flywheel is arranged in the flywheel shell; the elastic damping coupler is provided with a circular flange fixedly connected on the flywheel and a circular side plate fixedly connected with the circular flange; the center of the front end surface of the circular side plate is provided with an annular boss protruding towards the front end; a tapered roller bearing II is arranged on the annular boss; one end of a housing positioned in the flywheel housing is sleeved on an outer ring of the tapered roller bearing II, and a bearing cup is arranged between the housing and the outer ring of the tapered roller bearing II. The utility model can resist the impact force in any axial direction; the axial clearance can be adjusted by changing the thickness of the adjusting ring according to actual requirements.
Description
Technical Field
The utility model relates to a diesel engine technical field, concretely relates to anti-impact diesel engine elastic damping connecting device with axial gap adjustable.
Background
The diesel engine sometimes works in a severe environment, strong impact and strong sudden load threaten the continuous operation of the diesel engine greatly, the impact resistance of the diesel engine is directly related to the life force and the reliability of equipment, and the general diesel engine adopts a thrust ring or a deep groove ball bearing of an elastic damping coupling to prevent the axial overlarge movement, but cannot bear the large sudden load. On the other hand, the elastic damping coupling determines the axial clearance of the diesel engine, the diesel engine is assembled under the general condition, the axial clearance cannot be adjusted, and subsequent adjustment and improvement are inconvenient. In hopes of the integrated design of the diesel engine and the coupler, the flywheel shell of the diesel engine and the elastic damping coupler are required to be combined to design the closed flywheel shell with impact resistance and controllable axial clearance. Therefore, the diesel engine flywheel housing and the elastic damping coupling joint must be good in impact resistance, compact and adjustable in clearance.
The content of the content is currently determined from published materials, such as authorization notice numbers: CN 101915275A "elastic damping shaft coupling", this utility model provides an elastic damping shaft coupling has solved wearing and tearing and the oil leak problem that the shaft coupling appears with being connected of cardan shaft, diesel engine effectively, has improved the performance and the life-span of shaft coupling itself, has strengthened driving system's operational stability, reliability and security, but does not consider the diesel engine bent axle location. CN 101117981A "diesel engine elastic coupling", this utility model discloses an it is lubricated to the coupling to focus on the introduction, the utility model discloses focus is absorbed in and is resisted shock and axial clearance is controllable. CN 201916655U "an elastic damping shaft coupling", this utility model aims at providing an elastic damping shaft coupling to solve the problem that produces the bearing loss piece of diesel engine and generating set that the axial force arouses to shaft coupling pressure fuel feeding. These two patents are different from the present invention in terms of objects and methods.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing an anti-impact diesel engine elastic damping connecting device with adjustable axial gap.
The utility model discloses a its practical novel task is accomplished to following technical scheme:
the elastic damping connecting device of the anti-impact diesel engine is provided with a flywheel shell; the flywheel housing is sleeved on a crankshaft of the diesel engine through a tapered roller bearing I; one end of the flywheel housing is sleeved on the crankshaft, and the other end of the flywheel housing is connected with a housing; one end of the housing extends into the flywheel housing, and the other end of the housing is fixed on the front end surface of the flywheel housing in a sealing manner; a flywheel sleeved at the end of the crankshaft is arranged at one end in the flywheel shell; an elastic damping coupling is arranged between the housing and the flywheel in the flywheel housing; the elastic damping coupler is provided with a circular flange fixedly connected to the flywheel and a circular side plate fixedly connected with the circular flange; a plurality of middle blocks which are uniformly distributed along the circumference are arranged between the circular side plate and the circular flange; a reed group for reducing the high-frequency vibration of the power of the diesel engine is arranged between two adjacent middle blocks; fastening rings for limiting the middle blocks and the reed groups are arranged on the outer sides of the middle blocks and the reed groups; the circular flange and the circular side plate are sleeved on the coupling spline shaft; the front end and the rear end of the coupling spline shaft respectively penetrate through the circular side plate and the circular flange; the coupling spline shaft is also sleeved with a transmission gear ring which is in tooth engagement with the coupling spline shaft; the transmission gear ring is positioned between the circular side plate and the circular flange, is spliced and combined with the reed set into a whole, and reduces the power of the diesel engine with high-frequency vibration to be transmitted to the coupling spline shaft through the reed set; the center of the front end surface of the circular side plate is provided with an annular boss protruding towards the front end; a tapered roller bearing II is arranged on the annular boss of the side plate; the tapered roller bearing I and the tapered roller bearing II support the elastic damping coupler together, so that the elastic damping coupler joint can resist the impact force in any axial direction; one end of a housing positioned in the flywheel shell is sleeved on an outer ring of the tapered roller bearing II, and a bearing cup is arranged between the housing and the outer ring of the tapered roller bearing II; the bearing cup is of a stepped sleeve structure; the small-diameter sleeve of the bearing cup is positioned between the outer ring of the tapered roller bearing II and the housing positioned in the flywheel shell, and the step surface of the bearing cup forms a limiting surface for axially limiting the housing; a support ring is fixed on the large-diameter surface of the bearing cup; the support ring is of a stepped sleeve structure, and a small-diameter sleeve of the support ring is tightly pressed at one end of an outer ring of the tapered roller bearing II through an adjusting ring; the thickness of the adjusting ring is adjusted according to the axial clearance.
The inner ring of the tapered roller bearing I is sleeved on the crankshaft, and the outer ring of the tapered roller bearing is tightly pressed by the retainer ring in a retaining manner.
The center of the crankshaft has an oil passage; an oil inlet pipe which is connected and communicated with the oil channel in a threaded manner is arranged in the oil channel; the other end of the oil inlet pipe is positioned in an axial oil inlet channel at the center of the coupling spline shaft; the coupling spline shaft is provided with a radial oil duct communicated with the axial oil inlet channel; the radial oil passage is communicated with the oil passage on the circular side plate of the elastic damping coupler; the oil passage on the side plate is a cross-shaped oil passage; the radial oil duct of the cross-shaped oil duct is communicated with the tapered roller bearing II; and the transverse oil duct of the cross-shaped oil duct forms a structure for lubricating the elastic damping coupler through an inclined oil duct on the side plate.
The utility model provides an anti-impact diesel engine elastic damping connecting device with adjustable axial clearance, compared with the traditional shaft coupling, and compared with the deep groove ball bearing, the tapered roller bearing has stronger impact force, the utility model adopts two ends of the elastic damping shaft coupling joint to be provided with two tapered roller bearings, and the elastic damping shaft coupling joint can resist the impact force in any axial direction;
the utility model can adjust the axial clearance by changing the thickness of the adjusting ring according to the actual demand, and is convenient to adjust and reform;
if the oil inlet pipe, the coupling spline shaft and the tapered roller bearing are inspected or overhauled, only the end cover needs to be disassembled, the coupling spline shaft and the oil inlet pipe are taken out, the support ring does not need to be disassembled, the axial clearance is not influenced, and the maintenance is convenient and the system reliability is increased;
for the tapered roller bearing close to the diesel engine, splashing lubricating oil of a machine body or lubricating oil of a crankshaft oil duct of the diesel engine is used for lubricating the tapered roller bearing, and the oil duct does not need to be separately processed;
the tapered roller bearing close to the diesel engine is sleeved on the crankshaft and is positioned between the flywheel shell and the diesel engine crankshaft, the internal space of the flywheel shell is utilized, the length of equipment does not need to be lengthened, the existing space is fully utilized, and the compactness of the equipment is enhanced.
Tapered roller bearings are arranged at two ends of the elastic damping coupling joint and can bear the larger weight of the elastic damping coupling.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the middle elastic damping coupling device and the accessories of the present invention.
Fig. 3 is a cross-sectional view taken along line B-B of fig. 2.
Fig. 4 is a schematic structural diagram of the flywheel of the present invention.
Fig. 5 is a sectional view a-a of fig. 4.
Fig. 6 is a schematic structural view of the bearing cup of the present invention.
Fig. 7 is a sectional view a-a of fig. 6.
Fig. 8 is a schematic structural diagram of the middle housing of the present invention.
Fig. 9 is a sectional view a-a of fig. 8.
Fig. 10 is a schematic structural view of the flywheel housing of the present invention.
Fig. 11 is a sectional view a-a of fig. 10.
Fig. 12 is a schematic structural diagram of the support ring of the present invention.
Fig. 13 is a sectional view a-a of fig. 12.
Fig. 14 is an installation diagram of the present invention.
In the figure: 1. a crankshaft; 2. an oil inlet pipe; 3. a tapered roller bearing I; 4. a retainer ring; 5. a transmission gear ring; 6. a reed group; 7. a flywheel; 8. a bolt I; 9. a flywheel housing; 10. a bolt II; 11. a housing; 12. a bearing cup; 13. a bolt III; 14. a support ring; 15. a bolt IV; 16. a coupling spline shaft; 17. an O-shaped sealing ring I; 18. an end cap; 19. an adjustment ring; 20. a tapered roller bearing II; 21. an O-shaped sealing ring II; 22. a circular side plate; 23. a fastening ring; 24. a middle block; 25. a bolt IV; 26. a circular flange.
Detailed Description
The invention is described in connection with the accompanying drawings and the embodiments:
as shown in fig. 1, in conjunction with fig. 14, an anti-shock diesel engine elastomeric damping interface with adjustable axial clearance having a flywheel housing 9; with reference to fig. 10 and 11, the flywheel housing 9 is a hollow frame; the flywheel housing 9 is sleeved on the crankshaft 1 of the diesel engine through a tapered roller bearing I3; one end of the flywheel housing 9 is sleeved on the crankshaft 1, and the other end of the flywheel housing is connected with a housing 11; with reference to fig. 8 and 9, one end of the housing 11 extends into the flywheel housing 9, and the other end is fixed to the front end surface of the flywheel housing 9 in a sealing manner; a flywheel 7 sleeved at the end of the crankshaft is arranged at one end in the flywheel shell 9; with reference to fig. 4 and 5, the flywheel 7 has a plurality of through holes for bolts to pass through, and the diesel engine crankshaft 1 and the flywheel 7 are connected into a whole by bolts; an elastic damping coupling positioned between the housing 11 and the flywheel 7 is arranged in the flywheel housing 9; with reference to fig. 2 and 3, the elastic damping coupling has a circular flange 26 fixedly connected to the flywheel and a circular side plate 22 fixedly connected to the circular flange; a plurality of middle blocks 24 which are uniformly distributed along the circumference are arranged between the circular side plate 22 and the circular flange 26; a reed set 6 for reducing the high-frequency vibration of the power of the diesel engine is arranged between two adjacent middle blocks 24; the outer sides of the middle blocks 24 and the reed groups 6 are provided with fastening rings 23 for limiting the middle blocks and the reed groups; the circular flange 26 and the circular side plate 22 are sleeved on the coupling spline shaft 16; the front end and the rear end of the coupling spline shaft 16 respectively penetrate through the circular side plate 22 and the circular flange 26; the coupling spline shaft 16 is also sleeved with a transmission gear ring 5 which is in tooth engagement with the coupling spline shaft; the transmission gear ring 5 is positioned between the circular side plate 22 and the circular flange 26, is spliced and combined with the reed set 6 into a whole, and transmits the power of the diesel engine for reducing high-frequency vibration through the reed set 6 to the coupling spline shaft 16; the circular flange 26 is provided with a plurality of through holes for the bolts V25 to pass through, the uniformly distributed spring groups 6 divided by the fixed middle block 24 are clamped by the circular flange 26 and the circular side plate 22 through the bolts V25, one end of each spring group 6 is radially positioned by the fastening ring 23, the other end of each spring group 6 is inserted into the groove of the transmission gear ring 5, the inner ring of the transmission gear ring 5 is provided with teeth which are meshed with the teeth of the coupling spline shaft 16, and the power of the diesel engine which absorbs high-frequency vibration through the spring groups 6 is transmitted to the coupling spline shaft 16; the center of the front end surface of the circular side plate 22 is provided with an annular boss protruding towards the front end; a tapered roller bearing II 20 is arranged on the annular boss of the side plate; the tapered roller bearing I3 and the tapered roller bearing II 20 support the elastic damping coupler together, so that the elastic damping coupler joint can resist the impact force in any axial direction; one end of a housing positioned in the flywheel housing is sleeved on an outer ring of the tapered roller bearing II 20, and a bearing cup 12 is arranged between the housing 11 and the outer ring of the tapered roller bearing II; the structure of the bearing cup 12 is shown in fig. 6 and 7, and the bearing cup 12 is of a stepped sleeve structure; the small-diameter sleeve of the bearing cup 12 is positioned between the outer ring of the tapered roller bearing II 20 and the housing positioned in the flywheel shell, and the step surface of the bearing cup 12 forms a limiting surface for axially limiting the housing; a support ring 14 is fixed on the large-diameter surface of the bearing cup 12; as shown in fig. 12, 13; the supporting ring 14 is of a stepped sleeve structure, and a small-diameter sleeve of the supporting ring 14 is tightly pressed at one end of an outer ring of the tapered roller bearing II 20 through an adjusting ring; the thickness of the adjusting ring 19 is adjusted according to the axial clearance; the support ring 15 is supported outside the coupling spline shaft 16 by an end cap 18.
The inner ring of the tapered roller bearing I3 is sleeved on the crankshaft 1, and the outer ring of the tapered roller bearing I3 is pressed by the retainer ring 4.
The center of the crankshaft has an oil passage; an oil inlet pipe which is connected and communicated with the oil channel in a threaded manner is arranged in the oil channel; the other end of the oil inlet pipe is positioned in an axial oil inlet channel at the center of the coupling spline shaft; the coupling spline shaft is provided with a radial oil duct communicated with the axial oil inlet channel; the radial oil passage is communicated with the oil passage on the circular side plate of the elastic damping coupler; the oil passage on the side plate is a cross-shaped oil passage; the radial oil duct of the cross-shaped oil duct is communicated with the tapered roller bearing II; and the transverse oil duct of the cross-shaped oil duct forms a structure for lubricating the elastic damping coupler through an inclined oil duct on the side plate.
The housing is provided with a plurality of through holes for bolts II 10 to pass through, and the housing and the flywheel shell 9 are connected into a whole through the bolts II 10.
When the diesel engine normally works, the oil duct of the crankshaft 1 of the diesel engine is filled with lubricating oil, and a part of the lubricating oil lubricates the tapered roller bearing II 3 through injection or splashing; a through hole is formed in the middle of the oil inlet pipe 2, threads are formed in the right end of the oil inlet pipe 2 and are tightly backed with a diesel engine crankshaft, lubricating oil penetrates through the oil inlet pipe to reach a coupling spline shaft 16 oil duct, a radial oil duct is formed in the coupling spline shaft, the lubricating oil flows into the elastic damping coupling joint oil duct through the radial oil duct, the coupling spline shaft is provided with an oil duct, one part of the oil duct lubricates and cools a coupling, and the other part of the oil duct lubricates the tapered roller bearing II 20; in order to prevent the leakage of lubricating oil between parts, an O-shaped sealing ring I17 and an O-shaped sealing ring II 21 are respectively designed at the joint of the oil inlet pipe 2 and the coupling spline shaft 17, the housing 11 and the flywheel housing 9, so that the sealing performance and the reliability of the operation of the system are better ensured.
A diesel engine elastic damping connecting device shock resistance that dashes with axial gap adjustable: the utility model discloses arrange respectively at elastic damping shaft coupling festival both sides and arrange tapered roller bearing I and tapered roller bearing II, when the diesel engine normally worked, if come from the axial impact force to the left, elastic damping shaft coupling and rotating part extrude tapered roller bearing I's outer lane left, retaining ring 4 compresses tightly tapered roller bearing I's outer lane in order to prevent its drunkenness; if the impact force from the axial direction is rightward, the elastic damping coupler and the rotating part press the outer ring of the tapered roller bearing II rightwards, and the supporting ring 14 and the adjusting ring 19 press the outer ring of the tapered roller bearing II to prevent the outer ring from moving;
a diesel engine elastic damping connecting device adjusts the characteristic of axial gap with anti dashing of axial gap adjustable: the axial thickness of the adjusting ring 19 is changed to adjust the axial positions of the crankshaft of the diesel engine and the elastic damping coupler, so that the gap can be conveniently adjusted.
A have the characteristic of anti-impact diesel engine elastic damping connecting device convenient maintenance of axial gap adjustable: if the oil inlet pipe 2, the coupling spline shaft 16 and the tapered roller bearing 20 are inspected or overhauled, only the end cover 18 needs to be disassembled, the coupling spline shaft 16 and the oil inlet pipe 2 need to be taken out, the support ring 14 does not need to be disassembled, the axial clearance cannot be affected, the maintenance is convenient, and the reliability of the system is improved.
Claims (3)
1. The utility model provides an anti-impact diesel engine elastic damping connecting device with axial clearance adjustable which characterized in that: the elastic damping connecting device of the anti-impact diesel engine is provided with a flywheel shell; the flywheel housing is sleeved on a crankshaft of the diesel engine through a tapered roller bearing I; one end of the flywheel housing is sleeved on the crankshaft, and the other end of the flywheel housing is connected with a housing; one end of the housing extends into the flywheel housing, and the other end of the housing is fixed on the front end surface of the flywheel housing in a sealing manner; a flywheel sleeved at the end of the crankshaft is arranged at one end in the flywheel shell; an elastic damping coupling is arranged between the housing and the flywheel in the flywheel housing; the elastic damping coupler is provided with a circular flange fixedly connected to the flywheel and a circular side plate fixedly connected with the circular flange; a plurality of middle blocks which are uniformly distributed along the circumference are arranged between the circular side plate and the circular flange; a reed group for reducing the high-frequency vibration of the power of the diesel engine is arranged between two adjacent middle blocks; fastening rings for limiting the middle blocks and the reed groups are arranged on the outer sides of the middle blocks and the reed groups; the circular flange and the circular side plate are sleeved on the coupling spline shaft; the front end and the rear end of the coupling spline shaft respectively penetrate through the circular side plate and the circular flange; the coupling spline shaft is also sleeved with a transmission gear ring which is in tooth engagement with the coupling spline shaft; the transmission gear ring is positioned between the circular side plate and the circular flange, is spliced and combined with the reed set into a whole, and reduces the power of the diesel engine with high-frequency vibration to be transmitted to the coupling spline shaft through the reed set; the center of the front end surface of the circular side plate is provided with an annular boss protruding towards the front end; a tapered roller bearing II is arranged on the annular boss of the side plate; the tapered roller bearing I and the tapered roller bearing II jointly form a structure for supporting the elastic damping coupler; one end of a housing positioned in the flywheel shell is sleeved on an outer ring of the tapered roller bearing II, and a bearing cup is arranged between the housing and the outer ring of the tapered roller bearing II; the bearing cup is of a stepped sleeve structure; the small-diameter sleeve of the bearing cup is positioned between the outer ring of the tapered roller bearing II and the housing positioned in the flywheel shell, and the step surface of the bearing cup forms a limiting surface for axially limiting the housing; a support ring is fixed on the large-diameter surface of the bearing cup; the support ring is of a stepped sleeve structure, and a small-diameter sleeve of the support ring is tightly pressed at one end of an outer ring of the tapered roller bearing II through an adjusting ring; the thickness of the adjusting ring is adjusted according to the axial clearance.
2. An anti-shock diesel engine elastomeric damping interface with adjustable axial clearance as defined in claim 1 wherein: the inner ring of the tapered roller bearing I is sleeved on the crankshaft, and the outer ring of the tapered roller bearing is tightly pressed by the retainer ring in a retaining manner.
3. An anti-shock diesel engine elastomeric damping interface with adjustable axial clearance as defined in claim 1 wherein: the center of the crankshaft has an oil passage; an oil inlet pipe which is connected and communicated with the oil channel in a threaded manner is arranged in the oil channel; the other end of the oil inlet pipe is positioned in an axial oil inlet channel at the center of the coupling spline shaft; the coupling spline shaft is provided with a radial oil duct communicated with the axial oil inlet channel; the radial oil passage is communicated with the oil passage on the circular side plate of the elastic damping coupler; the oil passage on the side plate is a cross-shaped oil passage; the radial oil duct of the cross-shaped oil duct is communicated with the tapered roller bearing II; and the transverse oil duct of the cross-shaped oil duct forms a structure for lubricating the elastic damping coupler through an inclined oil duct on the side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921311077.5U CN210461453U (en) | 2019-08-14 | 2019-08-14 | Anti-impact diesel engine elastic damping connecting device with adjustable axial gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921311077.5U CN210461453U (en) | 2019-08-14 | 2019-08-14 | Anti-impact diesel engine elastic damping connecting device with adjustable axial gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210461453U true CN210461453U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921311077.5U Active CN210461453U (en) | 2019-08-14 | 2019-08-14 | Anti-impact diesel engine elastic damping connecting device with adjustable axial gap |
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| CN (1) | CN210461453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360239A (en) * | 2019-08-14 | 2019-10-22 | 河南柴油机重工有限责任公司 | One kind having the adjustable anti-impact diesel engine elastomeric damp connection device of axial gap |
-
2019
- 2019-08-14 CN CN201921311077.5U patent/CN210461453U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360239A (en) * | 2019-08-14 | 2019-10-22 | 河南柴油机重工有限责任公司 | One kind having the adjustable anti-impact diesel engine elastomeric damp connection device of axial gap |
| CN110360239B (en) * | 2019-08-14 | 2024-03-15 | 河南柴油机重工有限责任公司 | Elastic damping connecting device with adjustable axial clearance for impact-resistant diesel engine |
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