CN218266767U - Assembled multi-section crankshaft - Google Patents
Assembled multi-section crankshaft Download PDFInfo
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- CN218266767U CN218266767U CN202222243486.4U CN202222243486U CN218266767U CN 218266767 U CN218266767 U CN 218266767U CN 202222243486 U CN202222243486 U CN 202222243486U CN 218266767 U CN218266767 U CN 218266767U
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- eccentric shaft
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Abstract
The utility model discloses an assembled multistage bent axle, including components of a whole that can function independently eccentric shaft I, tapering locking eccentric shaft I, bearing I, components of a whole that can function independently eccentric shaft II, connecting piece I, components of a whole that can function independently eccentric shaft III, tapering locking eccentric shaft II, bearing II, components of a whole that can function independently eccentric shaft IV, connecting piece II; the taper locking eccentric shaft I and the through hole I have the same taper; the taper locking eccentric shaft II and the through hole II have the same taper; the bent axle adopts multistage formula can dismantle/assembled structure, can change according to split eccentric shaft I, split eccentric shaft II, split eccentric shaft III and split eccentric shaft IV of user demand selectivity, avoids the damaged problem that leads to the change of root entirely of bent axle part, and traditional integral type bent axle has compared, has abandoned complicated casting process, and simple manufacture has avoided using the components of a whole that can function independently axle bush, to the requirement greatly reduced of assembly, is convenient for on the whole change, maintains, overhauls simply.
Description
Technical Field
The utility model relates to a transmission technical field specifically is assembled multistage bent axle.
Background
The traditional crankshaft is of an integrated structure, the casting process is complex, and the manufacturing is simple;
the problems of the current crankshaft are: when one part of the crankshaft is damaged, the whole crankshaft needs to be replaced, so that the cost is high;
aiming at the technical problems, the existing crankshaft also has a detachable crankshaft, but the existing detachable crankshaft has a simpler connecting structure and has the problems of unstable connecting position or looseness of the connecting position;
therefore, the assembly type multi-section crankshaft is simple in casting process and manufacture, the use of split bearing bushes is avoided, and the requirement on assembly is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is not enough to prior art, provide a casting process simple, make simply, avoided using components of a whole that can function independently axle bush, to the requirement greatly reduced's of assembly assembled multistage bent axle.
The technical problem to be solved by the utility model is realized by the following technical proposal that the assembly type multi-section crankshaft comprises,
the device comprises a split eccentric shaft I, a taper locking eccentric shaft I and a bearing I, wherein the taper locking eccentric shaft I is arranged on the flat end face of the power output end of the split eccentric shaft II along the axial direction;
the locking device comprises a split eccentric shaft II, a locking groove is formed in the outer peripheral surface of the split eccentric shaft II, a through hole I which is convenient for the taper locking eccentric shaft I to enter the locking groove is formed in the split eccentric shaft II along the axial direction, the through hole I is communicated with the locking groove, and a connecting piece I which is used for locking the power output end of the split eccentric shaft II in the locking groove is arranged in the locking groove;
the power output end of the split eccentric shaft II is provided with a blind hole along the axial direction, and the outer peripheral surface of the taper locking eccentric shaft II is provided with a bearing II;
the power output end of the split eccentric shaft IV is provided with a connecting piece II for locking the taper locking eccentric shaft II extending into the through hole II;
the taper locking eccentric shaft I and the through hole I have the same taper;
and the taper locking eccentric shaft II and the through hole II have the same taper.
The utility model discloses the technical problem that solve can also be realized through following technical scheme, above assembled multistage bent axle, install swivel bearing on the power output end outer peripheral face of the power input end outer peripheral face of components of a whole that can function independently eccentric shaft I, the power output end outer peripheral face of components of a whole that can function independently eccentric shaft II and the power output end outer peripheral face of components of a whole that can function independently eccentric shaft IV respectively.
The utility model discloses the technical problem that solve can also realize through following technical scheme, above assembled multistage bent axle, install connection key I on the outer peripheral face of tapering locking eccentric shaft I, set up on the inner peripheral surface of through-hole I with the keyway that I cooperation of connection key was used.
The utility model discloses the technical problem that solve can also be realized through following technical scheme, above assembled multistage bent axle, follow axial direction and install straight shaft section I on the flat end face that components of a whole that can function independently eccentric shaft I was kept away from to tapering locking eccentric shaft I, straight shaft section I the axle footpath be less than through-hole I, straight shaft section I on have the external screw thread and with I threaded connection of connecting piece.
The utility model discloses the technical problem that solve can also be realized through following technical scheme, above assembled multistage bent axle, be provided with the through-hole III that link up with the blind hole along axial direction on the power take off end flat end face that divides body eccentric shaft III, be provided with in through-hole III department can with this with blind hole bolted connection with the power take off end locking bolt in the blind hole that will divide body eccentric shaft II.
The utility model discloses the technical problem that solve can also realize through following technical scheme, above assembled multistage bent axle, install two button head parallel keys on the outer peripheral face of components of a whole that can function independently eccentric shaft II, seted up on the inner peripheral surface of blind hole with the keyway that two button head parallel keys cooperation was used.
The utility model discloses the technical problem that solve can also be realized through following technical scheme, above assembled multistage bent axle, install straight shaft section II on the flat end face of components of a whole that can function independently eccentric shaft III is kept away from to tapering locking eccentric shaft II along the axial direction, straight shaft section II the axle footpath be less than through-hole II, straight shaft section II on have the external screw thread and with II threaded connection of connecting piece.
The utility model discloses the technical problem that solve can also realize through following technical scheme, above assembled multistage bent axle, set up the screw that a plurality of and blind hole link up on the power input end outer peripheral face of components of a whole that can function independently eccentric shaft III, be provided with on the screw and can stretch into in the blind hole and carry out the holding screw of butt locking to the power output end outer peripheral face of the components of a whole that can function independently eccentric shaft II in the blind hole.
The utility model discloses the technical problem that solve can also realize through following technical scheme, above assembled multistage bent axle, install connection key II on the power input end outer peripheral face of components of a whole that can function independently eccentric shaft III, set up on the inner peripheral surface of through-hole II with the keyway that II cooperations of connection key used.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) The crankshaft adopts a multi-section detachable/assembled structure, the split eccentric shaft I, the split eccentric shaft II, the split eccentric shaft III and the split eccentric shaft IV can be selectively replaced according to use requirements, the problem that the crankshaft is partially damaged to cause complete replacement is solved, compared with the traditional integrated crankshaft, a complex casting process is abandoned, the manufacturing is simple, the use of split bearing bushes is avoided, the requirement on assembly is greatly reduced, and the replacement, maintenance and overhaul are convenient to realize on the whole;
(2) The joints between the split eccentric shaft I and the split eccentric shaft II and between the split eccentric shaft III and the split eccentric shaft IV are locked by adopting taper, so that the joints are tighter, self-centering and better in coaxiality;
(3) By adopting the connection mode of the double round heads, the connecting keys and the key grooves, the integral connection performance of the split eccentric shaft I, the split eccentric shaft II, the split eccentric shaft III and the split eccentric shaft IV is better.
Drawings
FIG. 1 is an exploded view of the present invention;
fig. 2 is the side view of the utility model discloses a full section structure schematic diagram.
In the figure, 1, a taper locking eccentric shaft I; 2. a bearing I; 3. a bearing II; 4. a split eccentric shaft II; 5. a locking groove; 6. a connecting piece I; 7. a through hole I; 8. a split eccentric shaft I; 9. a split eccentric shaft III; 10. blind holes; 11. the eccentric shaft II is locked by taper; 12. a split eccentric shaft IV; 13. a through hole II; 14. a connecting piece II; 15. a rotating bearing; 16. a connecting bond I; 17. a straight shaft section I; 18. a through hole III; 19. locking the bolt; 20. a double-round-head flat key; 21. a straight shaft section II; 22. a screw hole; 23. a set screw; 24. and a connecting bond II.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings so as to facilitate the further understanding of the present invention by those skilled in the art, and do not constitute a limitation to the right thereof.
Embodiment 1, referring to fig. 1-2, a fabricated, multi-segmented crankshaft, comprising,
the shaft diameter and the axial size of the split eccentric shaft I8 can be customized according to the use requirement, so the specific values are not described again, a taper locking eccentric shaft I1 is arranged on the flat end face of the power output end of the split eccentric shaft II 4 along the axial direction, the shaft diameter and the axial size of the taper locking eccentric shaft I1 can be customized according to the use requirement, so the specific values are not described again, a bearing I2 is arranged on the outer peripheral surface of the taper locking eccentric shaft I1, and the bearing I2 and a bearing II 3 can be selected according to the use requirement in the prior art;
the split eccentric shaft II 4 is characterized in that the shaft diameter and the axial size of the split eccentric shaft II 4 can be customized according to the use requirement, so the specific values are not repeated, a locking groove 5 is formed in the outer peripheral surface of the split eccentric shaft II 4, the locking groove 5 can be a through groove with an arc-shaped section outline, the design purpose is to accommodate a connecting piece I6, a through hole I7 convenient for a taper locking eccentric shaft I1 to enter the locking groove 5 is formed in the split eccentric shaft II 4 along the axial direction, the through hole I7 can be a through hole with the same taper as the taper of the taper locking eccentric shaft I1, the through hole I7 is communicated with the locking groove 5, a connecting piece I6 for locking the power output end of the split eccentric shaft II 4 in the locking groove 5 is arranged in the locking groove 5, and the connecting piece I6 and the connecting piece II can be formed by a nut and a check corrugated gasket;
the shaft diameter and the axial size of the split eccentric shaft III 9 can be customized automatically according to the use requirements, so the specific values are not repeated herein, a blind hole 10 which is convenient for a power output end of the split eccentric shaft II 4 to extend into is formed in the flat end face of the power input end of the split eccentric shaft III 9, the blind hole 10 is a round hole, a taper locking eccentric shaft II 11 is installed on the flat end face of the power output end of the split eccentric shaft III 9 along the axial direction, the shaft diameter and the axial size of the taper locking eccentric shaft II 11 can be customized automatically according to the use requirements, so the specific values are not repeated herein, and a bearing II 3 is installed on the outer peripheral face of the taper locking eccentric shaft II 11;
the shaft diameter and the axial size of the split eccentric shaft IV 12 can be customized according to the use requirement, so the specific values are not repeated, a through hole II 13 convenient for the taper locking eccentric shaft II 11 to extend into is formed in the flat end face of the power input end of the split eccentric shaft IV 12, the through hole II 13 is a through hole with the same taper as the taper of the taper locking eccentric shaft II 11, and a connecting piece II 14 for locking the taper locking eccentric shaft II 11 extending into the through hole II 13 is arranged at the power output end of the split eccentric shaft IV 12;
the taper locking eccentric shaft I1 and the through hole I7 have the same taper;
and the taper locking eccentric shaft II 11 and the through hole II 13 have the same taper.
In the embodiment 1, the split eccentric shaft I8, the split eccentric shaft II 4, the split eccentric shaft III 9 and the split eccentric shaft IV 12 can be quickly connected through the connecting piece I6, the connecting piece II 14 and the locking bolt described below, and the mounting and dismounting are convenient;
it should be noted that in fig. 2, the power input ends of the split eccentric shaft i 8, the split eccentric shaft ii 4, the split eccentric shaft iii 9 and the split eccentric shaft iv 12 are the right ends of the split eccentric shaft i 8, the split eccentric shaft ii 4, the split eccentric shaft iii 9 and the split eccentric shaft iv 12, and the power output ends of the split eccentric shaft i 8, the split eccentric shaft ii 4, the split eccentric shaft iii 9 and the split eccentric shaft iv 12 are the left ends of the split eccentric shaft i 8, the split eccentric shaft ii 4, the split eccentric shaft iii 9 and the split eccentric shaft iv 12;
referring to fig. 1-2, the present solution is only to take a 180 ° double-opposite eccentric assembled (detachable) multi-segment crankshaft as an example to illustrate the structural principle, and the rest 60 ° six evenly-distributed assembled multi-segment crankshaft, 72 ° five evenly-distributed assembled multi-segment crankshaft, 90 ° four evenly-distributed assembled multi-segment crankshaft, 120 ° three evenly-distributed assembled multi-segment crankshaft, and so on extend the multi-segment, and are also applicable to the detachable structure of the present application, and all should belong to the protection range covered by the present solution.
In embodiment 2 and the assembled multi-stage crankshaft in embodiment 1, the rotary bearings 15 are respectively mounted on the outer peripheral surface of the power input end of the split eccentric shaft i 8, the outer peripheral surface of the power output end of the split eccentric shaft ii 4, and the outer peripheral surface of the power output end of the split eccentric shaft iv 12, and the rotary bearings 15 are of a type which can be selected by a user according to the use requirements in the prior art.
In embodiment 3, the connection key i 16 and the key groove are designed to make the connection and transmission of the taper locking eccentric shaft i 1 and the split eccentric shaft ii 4 more stable.
In embodiment 4 and the assembled multi-stage crankshaft according to embodiment 1, a straight shaft section i 17 is axially installed on a flat end surface of the taper locking eccentric shaft i 1 away from the split eccentric shaft i 8, a cross section of the straight shaft section i 17 is circular, an axial size and a radial size of the straight shaft section i 17 can be selected according to use requirements, an axial diameter of the straight shaft section i 17 is smaller than a through hole i 7, and the straight shaft section i 17 is provided with an external thread and is in threaded connection with a connecting piece i 6.
In embodiment 5, the assembled multi-stage crankshaft according to embodiment 1, a through hole iii 18 penetrating through the blind hole 10 is axially formed in a flat end surface of the power output end of the split eccentric shaft iii 9, the through hole iii 18 is a circular hole, axes of the through hole iii 18 and the blind hole 10 are collinear, and a locking bolt 19 capable of being bolted to the blind hole 10 is disposed at the through hole iii 18 to lock the power output end of the split eccentric shaft ii 4 in the blind hole 10, that is, an inner circumferential surface of the blind hole 10 has an internal thread.
In embodiment 5, the locking bolt 19 is designed to connect the split eccentric shaft iii 9 and the split eccentric shaft ii 4 into a whole, so that the split eccentric shaft iii 9 and the split eccentric shaft ii 4 can be conveniently connected and detached.
In embodiment 7, the assembled multi-stage crankshaft of embodiment 1, a straight shaft section ii 21 is installed on a flat end surface of the taper locking eccentric shaft ii 11 away from the split eccentric shaft iii 9 along the axial direction, a cross section of the straight shaft section ii 21 is circular, an axial dimension and a radial dimension of the straight shaft section ii 21 can be selected by a user according to a use requirement, an axial diameter of the straight shaft section ii 21 is smaller than the through hole ii 13, and the straight shaft section ii 21 has an external thread and is in threaded connection with the connecting member ii 14.
In embodiment 8, the assembled multi-stage crankshaft according to embodiment 1, the plurality of screw holes 22 penetrating through the blind hole 10 are formed in the outer peripheral surface of the power input end of the split eccentric shaft iii 9, and the screw holes 22 are provided with the set screws 23 capable of extending into the blind hole 10 and abutting and locking the outer peripheral surface of the power output end of the split eccentric shaft ii 4 in the blind hole 10.
In embodiment 8, the screw holes 22 may be circumferentially and uniformly distributed on the outer peripheral surface of the power input end of the split eccentric shaft iii 9, the number of the screw holes may be selected according to the use requirement, for example, four screw holes, etc., the fastening screws 23 may be conventional screws, and the design purpose thereof is to clamp the outer peripheral surface of the power output end of the split eccentric shaft ii 4 extending into the blind hole 10, so as to achieve the auxiliary connection and fixation effect.
In embodiment 9 and the fabricated multi-stage crankshaft of embodiment 1, the connection key ii 24 is mounted on the outer circumferential surface of the power input end of the split eccentric shaft iii 9, the key groove used in cooperation with the connection key ii 24 is formed on the inner circumferential surface of the through hole ii 13, and the connection key ii 24 and the key groove are designed to facilitate the connection between the split eccentric shaft iii 9 and the split eccentric shaft iv 12.
When this assembled multistage bent axle uses, respectively with between components of a whole that can function independently eccentric shaft I8 and the components of a whole that can function independently eccentric shaft II 4, components of a whole that can function independently eccentric shaft III 9 and the components of a whole that can function independently eccentric shaft IV 12 pass through connecting piece I6, connecting piece II 14 and locking bolt 19 realize connecting fixedly, rethread set screw 23 carry out supplementary chucking to components of a whole that can function independently eccentric shaft III 9, when components of a whole that can function independently eccentric shaft I8, components of a whole that can function independently eccentric shaft II 4, components of a whole that can function independently eccentric shaft III 9 and the components of a whole that can function independently eccentric shaft IV 12 appear when local damage, can change its arbitrary part, and need not to carry out the change of whole bent axle, with this maintenance cost that has reduced the bent axle, compared with current disconnect-type bent axle, it can make the bulk connection performance of bent axle better to have tapering locking eccentric shaft I1 and tapering locking eccentric shaft II 11.
Claims (9)
1. Assembled multistage bent axle, its characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the device comprises a split eccentric shaft I, a taper locking eccentric shaft I and a bearing I, wherein the taper locking eccentric shaft I is arranged on the flat end face of the power output end of the split eccentric shaft II along the axial direction;
the locking device comprises a split eccentric shaft II, a locking groove is formed in the outer peripheral surface of the split eccentric shaft II, a through hole I which is convenient for the taper locking eccentric shaft I to enter the locking groove is formed in the split eccentric shaft II along the axial direction, the through hole I is communicated with the locking groove, and a connecting piece I which is used for locking the power output end of the split eccentric shaft II in the locking groove is arranged in the locking groove;
the power output end of the split eccentric shaft II is provided with a blind hole along the axial direction, and the outer peripheral surface of the taper locking eccentric shaft II is provided with a bearing II;
the power output end of the split eccentric shaft IV is provided with a connecting piece II for locking the taper locking eccentric shaft II extending into the through hole II;
the taper locking eccentric shaft I and the through hole I have the same taper;
and the taper locking eccentric shaft II and the through hole II have the same taper.
2. The fabricated, multi-segment crankshaft of claim 1, wherein: and rotary bearings are respectively arranged on the peripheral surface of the power input end of the split eccentric shaft I, the peripheral surface of the power output end of the split eccentric shaft II and the peripheral surface of the power output end of the split eccentric shaft IV.
3. The fabricated, multi-segment crankshaft of claim 1, wherein: the outer peripheral surface of the taper locking eccentric shaft I is provided with a connecting key I, and the inner peripheral surface of the through hole I is provided with a key groove matched with the connecting key I for use.
4. The fabricated, multi-segment crankshaft of claim 1, wherein: a straight shaft section I is installed on the flat end face, far away from the split eccentric shaft I, of the taper locking eccentric shaft I in the axial direction, the shaft diameter of the straight shaft section I is smaller than that of the through hole I, and the straight shaft section I is provided with external threads and is in threaded connection with the connecting piece I.
5. The fabricated, multi-segment crankshaft of claim 1, wherein: and a through hole III communicated with the blind hole is formed in the flat end face of the power output end of the split eccentric shaft III along the axial direction, and a locking bolt which can be connected with the blind hole bolt to lock the power output end of the split eccentric shaft II in the blind hole is arranged at the through hole III.
6. The fabricated, multi-segment crankshaft of claim 1, wherein: and a double-round-head flat key is arranged on the outer peripheral surface of the split eccentric shaft II, and a key groove matched with the double-round-head flat key is formed in the inner peripheral surface of the blind hole.
7. The fabricated, multi-segment crankshaft of claim 1, wherein: and a straight shaft section II is arranged on the flat end surface of the taper locking eccentric shaft II far away from the split eccentric shaft III along the axial direction, the shaft diameter of the straight shaft section II is smaller than that of the through hole II, and the straight shaft section II is provided with external threads and is in threaded connection with the connecting piece II.
8. The fabricated, multi-segment crankshaft of claim 1, wherein: and the outer peripheral surface of the power input end of the split eccentric shaft III is provided with a plurality of screw holes communicated with the blind holes, and the screw holes are provided with fastening screws which can extend into the blind holes and can butt and lock the outer peripheral surface of the power output end of the split eccentric shaft II in the blind holes.
9. The fabricated, multi-segment crankshaft of claim 1, wherein: and a connecting key II is arranged on the outer peripheral surface of the power input end of the split eccentric shaft III, and a key groove matched with the connecting key II is formed in the inner peripheral surface of the through hole II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222243486.4U CN218266767U (en) | 2022-08-25 | 2022-08-25 | Assembled multi-section crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222243486.4U CN218266767U (en) | 2022-08-25 | 2022-08-25 | Assembled multi-section crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218266767U true CN218266767U (en) | 2023-01-10 |
Family
ID=84776606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222243486.4U Active CN218266767U (en) | 2022-08-25 | 2022-08-25 | Assembled multi-section crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218266767U (en) |
-
2022
- 2022-08-25 CN CN202222243486.4U patent/CN218266767U/en active Active
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