CN220015804U - Crankshaft flange structure of diesel engine - Google Patents
Crankshaft flange structure of diesel engine Download PDFInfo
- Publication number
- CN220015804U CN220015804U CN202321492192.3U CN202321492192U CN220015804U CN 220015804 U CN220015804 U CN 220015804U CN 202321492192 U CN202321492192 U CN 202321492192U CN 220015804 U CN220015804 U CN 220015804U
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- China
- Prior art keywords
- ring
- sealing
- support ring
- flange
- diesel engine
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- 238000007789 sealing Methods 0.000 claims abstract description 63
- 230000000694 effects Effects 0.000 claims abstract description 9
- 230000003068 static effect Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000005060 rubber Substances 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000003575 carbonaceous material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a crankshaft flange structure of a diesel engine, which comprises: the flange sleeve and cup joint in the inboard bearing lantern ring of flange sleeve and seal assembly, the bearing lantern ring is arranged in seal assembly's both sides and with the inboard interference butt of flange sleeve, seal assembly includes first support ring, second support ring and moves the cock ring, move the cock ring slip and cup joint in first support ring and second support ring inboard and both sides are equipped with a plurality of springs, the other end slip butt of spring has and is located the support ring of first support ring and second support ring inboard. According to the utility model, the bearing lantern ring and the sealing assembly structure are arranged in the flange shaft sleeve, so that the crankshaft rotation supporting and sealing operation are respectively realized, the movable plug ring is propped in the shaft rotation process, the sealing propping of the first propping ring and the second propping ring is combined with the bearing lantern ring to form a movable sealing effect, and the sealing effect is improved.
Description
Technical Field
The utility model relates to the technical field of crankshaft flanges, in particular to a crankshaft flange structure of a diesel engine.
Background
A crankshaft flange is a flange formed from one end of a crankshaft, typically used to connect diesel and machine equipment, and is generally circular or hexagonal in shape and has locating holes and screw holes to secure the flange to other components. The crankshaft flange can withstand high torque and high rotational speed, and is thus widely used in industrial fields. The crankshaft flange oil seal plays a role in sealing lubricating oil, so that parts needing to be lubricated in the transmission parts are isolated from the output parts, and lubricating oil leakage is avoided.
The existing crankshaft flange is usually sealed by adopting a sealing bearing structure, the sealing bearing is generally composed of an inner cylinder, an outer cylinder, rolling bodies, a retainer, a sealing element and the like, the sealing element is usually made of rubber, metal or plastic materials, the sealing effect of the sealing element depends on the material and structure of the sealing element, and the sealing bearing is only suitable for a low-speed, low-pressure and low-temperature low-power bearing system, so that the sealing bearing has a good sealing effect in a low-rotation speed state of a diesel engine, but the sealing element is easy to age and cannot completely avoid liquid leakage after long-time use. In view of the above, the present utility model has been made in view of the above problems, and an object of the present utility model is to provide a crankshaft flange structure for a diesel engine, which solves the problems and improves the practical value.
Disclosure of Invention
The present utility model aims to solve one of the technical problems existing in the prior art or related technologies.
The technical scheme adopted by the utility model is as follows: a crankshaft flange structure of a diesel engine, comprising: the flange sleeve and cup joint in the inboard bearing lantern ring of flange sleeve and seal assembly, the bearing lantern ring is arranged in seal assembly's both sides and with the inboard interference butt of flange sleeve, seal assembly includes first support ring, second support ring and moves the cock ring, move the cock ring slip and cup joint in the inboard and both sides of first support ring and second support ring and be equipped with a plurality of springs, the other end slip butt of spring has and is located the support ring of first support ring and second support ring inboard, the inboard activity of first support ring and second support ring cup joints the dynamic pressure sealing ring with support ring one side butt.
In this embodiment, a sealing flange is provided on one side of the flange sleeve, the number of the bearing rings is two, and the two bearing rings are respectively arranged on two sides of the sealing assembly, and the bearing ring far away from one end of the sealing flange is abutted against one side of the sealing assembly.
In this embodiment, the bearing collar is one of a cylindrical roller bearing or a tapered roller bearing having a metal cover plate and a rubber seal combined.
In this embodiment, a plurality of protruding guide lugs and matching grooves which are arranged in a one-to-one correspondence are respectively arranged on the surfaces of the first supporting ring and the second supporting ring, the protruding guide lugs and the matching grooves on the surfaces of the first supporting ring and the second supporting ring are arranged in a staggered manner, sliding pin holes are arranged on the surfaces of the protruding guide lugs, and limiting pins which are sleeved on the inner sides of the sliding pin holes in a sliding manner are arranged on the surfaces of the movable plug rings.
In this embodiment, the inner sides of the first propping ring and the second propping ring are respectively provided with a static pressure sealing ring, one side of each static pressure sealing ring is exposed out of the first propping ring and the second propping ring, and each static pressure sealing ring is a carbon material member.
In this embodiment, the abutment ring is of an alloy ring structure, and one side of the abutment ring abuts against the surface of the spring, and the spring is in a compressed state.
In this embodiment, the dynamic pressure seal ring is a polytetrafluoroethylene material member, and the outer periphery of the dynamic pressure seal ring is in interference abutment with the inner sides of the first abutment ring and the second abutment ring.
The present utility model may be further configured in a preferred example to:
the beneficial effects obtained by the utility model are as follows:
1. according to the utility model, the bearing lantern ring and the sealing assembly structure are arranged in the flange shaft sleeve, so that the crankshaft rotation supporting and sealing operation are respectively realized, the movable plug ring is propped in the shaft rotation process, the sealing propping of the first propping ring and the second propping ring is combined with the bearing lantern ring to form a movable sealing effect, and the sealing effect is improved.
2. According to the utility model, the carbon first propping ring and the carbon second propping ring with low friction coefficients are adopted for carrying out surface sealing propping, and the dynamic pressure sealing ring with high wear resistance is matched, so that the service life of the sealing structure is effectively prolonged.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of a flange sleeve according to one embodiment of the present utility model;
FIG. 3 is a schematic view of a seal assembly according to one embodiment of the present utility model;
FIG. 4 is an exploded view of a seal assembly according to one embodiment of the present utility model.
Reference numerals:
100. a flange shaft sleeve; 110. sealing the convex edge;
200. a bearing collar;
300. a seal assembly; 310. a first support ring; 320. a second support ring; 330. a plunger ring; 311. protruding guide lugs; 312. a mating groove; 313. static pressure sealing ring; 331. a limiting pin; 332. a spring; 333. a support ring; 334. and (5) dynamic pressure sealing rings.
Detailed Description
The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.
The following describes a crankshaft flange structure of a diesel engine provided in some embodiments of the present utility model with reference to the accompanying drawings.
Referring to fig. 1 to 4, the crankshaft flange structure of the diesel engine provided by the present utility model includes: the flange sleeve 100 and cup joint in the inboard bearing lantern ring 200 and the seal assembly 300 of flange sleeve 100, the bearing lantern ring 200 is arranged in the both sides of seal assembly 300 and with the inboard interference butt of flange sleeve 100, seal assembly 300 includes first support ring 310, second support ring 320 and move ring 330, move ring 330 sliding sleeve is equipped with a plurality of springs 332 in the inboard and both sides of first support ring 310 and second support ring 320, the other end sliding butt of spring 332 has the support ring 333 that is located the inboard of first support ring 310 and second support ring 320, the inboard activity of first support ring 310 and second support ring 320 cup joints the dynamic pressure sealing ring 334 with support ring 333 one side butt.
In this embodiment, a sealing flange 110 is provided on one side of the flange sleeve 100, and two bearing rings 200 are respectively disposed on two sides of the sealing assembly 300, and the bearing ring 200 away from one end of the sealing flange 110 abuts against one side of the sealing assembly 300.
In this embodiment, the bearing collar 200 is one of a cylindrical roller bearing or a tapered roller bearing having a metal cover plate and a rubber seal combined.
Specifically, a sealing mode of combining a metal cover plate and a rubber sealing piece is adopted to perform primary sealing of the shaft end.
In this embodiment, the surfaces of the first supporting ring 310 and the second supporting ring 320 are provided with a plurality of protruding guide lugs 311 and matching grooves 312 which are arranged in a one-to-one correspondence manner, the protruding guide lugs 311 and the matching grooves 312 on the surfaces of the first supporting ring 310 and the second supporting ring 320 are arranged in a staggered manner, the surfaces of the protruding guide lugs 311 are provided with sliding pin holes, and the surfaces of the movable plug ring 330 are provided with limiting pins 331 which are sleeved on the inner sides of the sliding pin holes in a sliding manner.
Specifically, the movable combination of the first support ring 310, the second support ring 320 and the plunger ring 330 is performed, so as to realize the elastic telescopic movement of the first support ring 310 and the second support ring 320.
In this embodiment, the inner sides of the first support ring 310 and the second support ring 320 are respectively provided with a static pressure sealing ring 313, and one side of the static pressure sealing ring 313 is exposed outside the first support ring 310 and the second support ring 320, and the static pressure sealing ring 313 is a carbon material member.
Specifically, the static pressure sealing ring 313 realizes the abutting sealing between the first abutting ring 310 and the second abutting ring 320 and the surface of the moving part, and has high wear resistance and high temperature resistance.
In this embodiment, the abutment ring 333 is an alloy ring structure, and one side of the abutment ring 333 abuts against the surface of the spring 332, and the spring 332 is in a compressed state.
Further, the dynamic pressure seal ring 334 is a polytetrafluoroethylene material, and the outer periphery of the dynamic pressure seal ring 334 is in interference contact with the inner sides of the first abutment ring 310 and the second abutment ring 320.
Specifically, the dynamic pressure sealing ring 334 is abutted against the static pressure sealing ring 313 inside the first abutting ring 310 and the second abutting ring 320 under the abutting of the spring 332 and the dynamic pressure sealing ring 334, and is abutted against the periphery of the shaft and the inner sides of the first abutting ring 310 and the second abutting ring 320 to seal, and polytetrafluoroethylene has good wear resistance, so that the service life of the sealing assembly 300 is prolonged.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (7)
1. A crankshaft flange structure of a diesel engine, comprising: the flange sleeve (100) and cup joint in the inboard bearing collar (200) of flange sleeve (100) and sealing component (300), bearing collar (200) arrange in the both sides of sealing component (300) and with the inboard interference butt of flange sleeve (100), sealing component (300) include first support ring (310), second support ring (320) and move ring (330), move ring (330) slip cup joint in the inboard of first support ring (310) and second support ring (320) and both sides are equipped with a plurality of springs (332), the other end slip butt of spring (332) has support ring (333) that are located the inboard of first support ring (310) and second support ring (320), the inboard activity of first support ring (310) and second support ring (320) cup joint seal ring (334) with the dynamic pressure of support ring (333) one side butt.
2. The crankshaft flange structure of the diesel engine according to claim 1, wherein a sealing flange (110) is provided on one side of the flange sleeve (100), the number of the bearing collars (200) is two and the bearing collars (200) are respectively arranged on two sides of the sealing assembly (300), and the bearing collars (200) far away from one end of the sealing flange (110) are abutted against one side of the sealing assembly (300).
3. The crankshaft flange structure of a diesel engine according to claim 1, wherein the bearing collar (200) is one of a cylindrical roller bearing or a tapered roller bearing having a metal cover plate and a rubber seal combined.
4. The crankshaft flange structure of the diesel engine according to claim 1, wherein the surfaces of the first supporting ring (310) and the second supporting ring (320) are provided with a plurality of protruding guide lugs (311) and matching grooves (312) which are arranged in a one-to-one correspondence manner, the protruding guide lugs (311) and the matching grooves (312) on the surfaces of the first supporting ring (310) and the second supporting ring (320) are arranged in a staggered manner, the surface of the protruding guide lugs (311) is provided with sliding pin holes, and the surface of the movable plug ring (330) is provided with limiting pins (331) which are sleeved on the inner sides of the sliding pin holes in a sliding manner.
5. The crankshaft flange structure of the diesel engine according to claim 1, wherein the inner sides of the first abutting ring (310) and the second abutting ring (320) are respectively provided with a static pressure sealing ring (313), one side of the static pressure sealing ring (313) is exposed to the outer sides of the first abutting ring (310) and the second abutting ring (320), and the static pressure sealing ring (313) is a carbon material component.
6. The crankshaft flange structure of a diesel engine according to claim 1, wherein the abutment ring (333) is an alloy ring structure, and one side of the abutment ring (333) abuts against a surface of the spring (332), and the spring (332) is in a compressed state.
7. The crankshaft flange structure of a diesel engine according to claim 1, wherein the dynamic pressure seal ring (334) is a polytetrafluoroethylene material member, and an outer periphery of the dynamic pressure seal ring (334) is in interference abutment with inner sides of the first abutment ring (310) and the second abutment ring (320).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321492192.3U CN220015804U (en) | 2023-06-13 | 2023-06-13 | Crankshaft flange structure of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321492192.3U CN220015804U (en) | 2023-06-13 | 2023-06-13 | Crankshaft flange structure of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220015804U true CN220015804U (en) | 2023-11-14 |
Family
ID=88671420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321492192.3U Active CN220015804U (en) | 2023-06-13 | 2023-06-13 | Crankshaft flange structure of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220015804U (en) |
-
2023
- 2023-06-13 CN CN202321492192.3U patent/CN220015804U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |