CN210128054U - Bolt-up formula bent axle power take off subassembly - Google Patents
Bolt-up formula bent axle power take off subassembly Download PDFInfo
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- CN210128054U CN210128054U CN201920635125.XU CN201920635125U CN210128054U CN 210128054 U CN210128054 U CN 210128054U CN 201920635125 U CN201920635125 U CN 201920635125U CN 210128054 U CN210128054 U CN 210128054U
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- bent axle
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Abstract
The utility model discloses a bolt-up formula bent axle power take off subassembly, including a bent axle, drive gear, flywheel and a bearing of gearbox, still include the connection pad, drive gear suit on the bent axle, flange fastening bolt is passed through to one side of connection pad and the terminal surface of bent axle is connected, a bearing of gearbox pass through the bush and install in the connection pad, just the bush pass through bush fastening bolt and be connected with the connection pad, the flywheel pass through flywheel fastening bolt and be connected with the connection pad. The utility model discloses a bolt-up formula bent axle power take off subassembly, compact structure, reliable and stable effectively prevent that bent axle and flange from sliding relatively, ensure power take off's continuation and stability, prolonged its life greatly, solved the flange and received structure, size restriction can't further increase the hole diameter and lead to the problem of power take off inefficacy.
Description
Technical Field
The utility model relates to a bent axle power take off technical field, more specifically says, it relates to a bolt-up formula bent axle power take off subassembly.
Background
For crankshaft power output of a post-gear engine, as shown in fig. 1, the current crankshaft power output assembly mainly comprises a crankshaft 1, a driving gear 2, a flange 3 and a flywheel 4, wherein, the driving gear 2 adopts a flat key 5 or interference fit to transmit torque, the inner hole of the flange 3 and the crankshaft 1 adopt a shrink fit assembly process, although the structure and the assembly process are simple, but subject to structural and dimensional constraints (which, in addition to providing sets of clutch mounting screw holes and a working engagement plane, also provide mounting space for a shaft bearing 6 of the gearbox, etc.), the engagement of the inner bore of the flange 3 with the mating section of the crankshaft 1 cannot be made very large, in addition, the influence of materials and heat treatment is received, the heating temperature during shrink-fitting is limited, and in addition, the matching strength with the crankshaft is also influenced by the fluctuation of the surface roughness of the inner hole of the flange 3, so the power output assembly is failed occasionally.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is not enough to the above-mentioned of prior art, provide a compact structure, reliable and stable bolt-up formula bent axle power take off subassembly, effectively prevent that bent axle and flange from sliding relatively, ensure power take off's continuation and stability, prolonged its life greatly.
The utility model adopts the technical proposal that: the utility model provides a bolt-up formula bent axle power take off subassembly, includes bent axle, drive gear, flywheel and a gearbox shaft bearing, still includes the connection pad, drive gear suit on the bent axle, flange fastening bolt is passed through to one side of connection pad and the terminal surface of bent axle is connected, a gearbox shaft bearing pass through the bush and install in the connection pad, just the bush pass through bush fastening bolt and be connected with the connection pad, the flywheel pass through flywheel fastening bolt and be connected with the connection pad.
As a further improvement, the connecting disc is sequentially provided with a plurality of blind end screw holes for mounting flywheel fastening bolts and a plurality of countersunk head nail passing holes for mounting flange fastening bolts from inside to outside in the radial direction, and the connecting disc between the blind end screw holes and the countersunk head nail passing holes is also provided with a plurality of through screw holes for mounting bushing fastening bolts.
Further, connection pad one side be equipped with the cylinder heavy groove that is used for installing the bush, the countersunk head cross the nail hole, lead to the screw and all set up the bottom surface in this cylinder heavy groove.
Furthermore, the bush center be equipped with the erection column hole that is used for installing gearbox shaft bearing, the bush on lie in erection column hole periphery and still be equipped with a plurality of countersunk head mounting holes that are used for installing bush fastening bolt, the bush on still be equipped with a plurality of dismantlement screw holes that are used for dismantling the bush.
Furthermore, one side of the bushing is provided with a yielding sinking groove.
Further, the crankshaft end face is provided with a plurality of flange mounting screw holes for mounting the flange fastening bolts, the crankshaft end face center is provided with a positioning column body, and correspondingly, the connecting disc center is provided with a positioning column hole.
Furthermore, at least two flat keys are arranged between the driving gear and the crankshaft.
Furthermore, sealing rings are arranged between the driving gear and a shaft shoulder of the crankshaft and between the driving gear and the connecting disc.
Advantageous effects
Compared with the prior art, the utility model, have following advantage:
1. the utility model discloses a bolt-up formula bent axle power take off subassembly, compact structure, reliable and stable effectively prevent that bent axle and flange from sliding relatively, make the bent axle atress more even, improved the joint strength of bent axle and connection pad to effectively improve transmission efficiency, ensure power take off's continuation and stability, prolonged its life greatly, solved the flange and received structure, size restriction can't further increase the hole diameter and lead to the problem of power take off inefficacy.
2. The utility model discloses an all add the sealing washer between the shaft shoulder of drive gear and bent axle, between drive gear and connection pad, make bent axle power take off's inner chamber sealed more reliable.
3. The utility model discloses a gearbox shaft bearing passes through the bush to be installed in the connection pad, and the dismouting of being convenient for is maintained.
Drawings
FIG. 1 is a schematic cross-sectional front view of a prior art;
fig. 2 is a schematic view of the structure of the present invention;
fig. 3 is a schematic diagram of the right-side view structure of the present invention;
FIG. 4 is a schematic cross-sectional view taken along line A-A in FIG. 2;
FIG. 5 is a schematic cross-sectional view of B-B in FIG. 3;
FIG. 6 is an enlarged schematic view of the three-dimensional structure of the middle connection plate of the present invention;
FIG. 7 is an enlarged schematic view of the three-dimensional structure of one side of the bushing according to the present invention;
FIG. 8 is an enlarged schematic view of the other side of the bushing according to the present invention;
fig. 9 is a schematic front view of the crankshaft of the present invention;
FIG. 10 is a schematic diagram of the structure of the present invention with the flywheel removed from the right view;
fig. 11 is a schematic cross-sectional view of E-E in fig. 10.
Wherein: 1-crankshaft, 2-driving gear, 3-flange, 4-flywheel, 5-flat key, 6-gearbox shaft bearing, 7-connecting disc, 8-flange fastening bolt, 9-bushing, 10-bushing fastening bolt, 11-flywheel fastening bolt, 12-sealing ring, 1 a-flange mounting screw hole, 1 b-positioning column, 7 a-blind end screw hole, 7 b-countersunk head through nail hole, 7 c-through screw hole, 7 d-cylindrical sunk groove, 7 e-positioning column hole, 9 a-mounting column hole, 9 b-countersunk head mounting hole, 9 c-dismounting screw hole and 9 d-abdicating sunk groove.
Detailed Description
The invention will be further described with reference to specific embodiments shown in the drawings.
Referring to fig. 2-11, the utility model discloses a bolt-fastened crankshaft power output assembly, including crankshaft 1, drive gear 2, flywheel 4 and gearbox primary shaft bearing 6, and also including connection pad 7, wherein, drive gear 2 suit is on crankshaft 1, there is the shaft shoulder inside crankshaft 1, one side of connection pad 7 is connected with the terminal surface of crankshaft 1 through flange fastening bolt 8, gearbox primary shaft bearing 6 is installed in connection pad 7 through bush 9, and bush 9 is connected with connection pad 7 through bush fastening bolt 10, the dismouting of being convenient for is maintained the bearing, flywheel 4 is connected with connection pad 7 through flywheel fastening bolt 11, between crankshaft 1 and connection pad 7, between flywheel 4 and connection pad 7, between bush 9 and connection pad 7 all adopt bolt-fastened connection, form compact structure, stable and reliable bolt-fastened crankshaft power output assembly, effectively prevent bent axle and flange relative slip, make the bent axle atress more even, transmission efficiency is higher, ensures power take off's continuation and stability, has prolonged its life greatly, has solved the flange and has received structure, size restriction can't further increase the hole diameter and lead to the problem of power take off inefficacy.
In this embodiment, the connecting disc 7 is provided with a plurality of blind end screw holes 7a for mounting the flywheel fastening bolts 11 and a plurality of countersunk head screw holes 7b for mounting the flange fastening bolts 8 in sequence from outside to inside in the radial direction, the connecting disc 7 between the blind end screw holes 7a and the countersunk head screw holes 7b is also provided with a plurality of through screw holes 7c for mounting the bushing fastening bolts 10, the blind end screw holes 7a and the countersunk head screw holes 7b are all holes uniformly arranged around the same circle center, and the through screw holes 7c are arranged in a staggered manner, so that the mounting requirements of various bolts are met, the connecting disc 7 is reasonably optimized, and the strength of the connecting disc 7 is improved. Be equipped with the cylinder heavy groove 7d that is used for installing bush 9 in connection pad 7 one side, bush 9 is pegged graft and is installed in cylinder heavy groove 7d, and nail hole 7b is crossed to its countersunk head, leads to screw 7c and all sets up the bottom surface in this cylinder heavy groove 7d, is convenient for install bush 9.
9 centers of bush are equipped with the erection column hole 9a that is used for installing gearbox shaft bearing 6, gearbox shaft bearing 6 interference is pegged graft in erection column hole 9a, it still is equipped with a plurality of countersunk head mounting hole 9b that are used for installing bush fastening bolt 10 to lie in erection column hole 9a periphery on bush 9, still be equipped with a plurality of dismantlement screws 9c that are used for dismantling bush 9 on bush 9, a plurality of countersunk head mounting holes 9b and a plurality of dismantlement screws 9c all evenly arrange around same centre of a circle, when dismantling bush 9, use the bolt to connect soon on dismantling screw 9c, can tear bush 9 out fast, it is very convenient to operate. Be equipped with on one side of bush 9 and let a position heavy groove 9d, reduce area of contact, effectively reduce the heavy groove 7d bottom surface of cylinder of connection pad 7 and to the influence of bush 9 installation, eliminate the clearance, make bush 9 laminate the bottom surface of the heavy groove 7d of cylinder more, connect more reliably. Similarly, the other side of the connecting disc 7 is also provided with a sinking groove.
A plurality of flange mounting screw holes 1a used for mounting the flange fastening bolt 8 are formed in the end face of the crankshaft 1, the flange mounting screw holes 1a are evenly distributed, a positioning column body 1b is arranged in the center of the end face of the crankshaft 1, correspondingly, a positioning column hole 7e is formed in the center of the connecting disc 7, the axis of the flange mounting screw hole 1a and the axis of the countersunk head nail passing hole 7b can be quickly found through the matched positioning of the positioning column body 1b and the positioning column hole 7e, and the assembly is convenient. Still be equipped with two at least parallel keys 5 between drive gear 2 and bent axle 1, be connected bent axle 1 and drive gear 2 through a plurality of parallel keys 5, make parallel keys 5 atress even, can improve transmission stability, effectively prolong the life of subassembly.
The bolt-fastened crankshaft power output assembly in the embodiment is characterized in that when the bolt-fastened crankshaft power output assembly is assembled, the driving gear 2 is positioned and installed at one end of the crankshaft 1 through the flat key 5, the connecting disc 7 is sleeved on the end face of the crankshaft 1 through the hole shaft matching of the positioning column 7e and the positioning column 1b, the connecting disc 7 is locked through the flange fastening bolt 8, then the transmission case shaft bearing 6 is installed in the lining 9, the lining 9 is integrally inserted into the cylindrical sinking groove 7d of the connecting disc 7, the lining 9 is locked through the lining fastening bolt 10, then the flywheel 4 is sleeved on the connecting disc 7, and the flywheel 4 is locked through the flywheel fastening bolt 11, so that the whole crankshaft power output assembly can be fixedly installed.
Preferably, sealing rings 12 are arranged between the driving gear 2 and the shaft shoulder of the crankshaft 1 and between the driving gear 2 and the connecting disc 7, and the sealing rings are additionally arranged between the driving gear and the shaft shoulder of the crankshaft and between the driving gear and the connecting disc, so that the inner cavity of the power output end of the crankshaft is more reliably sealed. In order to improve the stability of the sealing ring 12, rectangular grooves are formed in the shaft shoulder end face of the crankshaft 1 and the end face of the connecting disc 7, the sealing ring 12 is clamped in the rectangular grooves, the mounting and the dismounting are very convenient, and the mounting is firm.
The above is only the preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility model and the utility of the patent.
Claims (8)
1. The utility model provides a bolt-up formula bent axle power take off subassembly, includes bent axle (1), drive gear (2), flywheel (4) and gearbox shaft bearing (6), its characterized in that still includes connection pad (7), drive gear (2) suit on bent axle (1), the terminal surface of flange fastening bolt (8) and bent axle (1) is passed through to one side of connection pad (7) is connected, gearbox shaft bearing (6) install in connection pad (7) through bush (9), just bush (9) be connected with connection pad (7) through bush fastening bolt (10), flywheel (4) be connected with connection pad (7) through flywheel fastening bolt (11).
2. The bolt-fastened crankshaft power output assembly according to claim 1, wherein the connecting disc (7) is provided with a plurality of blind end screw holes (7a) for mounting the flywheel fastening bolts (11) and a plurality of countersunk head screw holes (7b) for mounting the flange fastening bolts (8) in sequence from the outside to the inside in the radial direction, and the connecting disc (7) between the blind end screw holes (7a) and the countersunk head screw holes (7b) is further provided with a plurality of through screw holes (7c) for mounting the bushing fastening bolts (10).
3. The bolt-fastened crankshaft power output assembly according to claim 2, wherein one side of the connecting disc (7) is provided with a cylindrical sunken groove (7d) for mounting the bushing (9), and the countersunk head nail passing hole (7b) and the through screw hole (7c) are both formed in the bottom surface of the cylindrical sunken groove (7 d).
4. The bolt-fastened crankshaft power output assembly according to claim 1, wherein the bushing (9) is provided at a center thereof with a mounting post hole (9a) for mounting a shaft bearing (6) of a transmission, the bushing (9) is further provided at a periphery of the mounting post hole (9a) with a plurality of countersunk mounting holes (9b) for mounting bushing-fastening bolts (10), and the bushing (9) is further provided with a plurality of dismounting screw holes (9c) for dismounting the bushing (9).
5. The bolt-fastened crankshaft power output assembly according to claim 1, wherein the bushing (9) is provided with a relief groove (9d) at one side.
6. The bolt-fastened crankshaft power output assembly according to claim 1, wherein the end face of the crankshaft (1) is provided with a plurality of flange mounting screw holes (1a) for mounting the flange fastening bolts (8), the center of the end face of the crankshaft (1) is provided with a positioning column (1b), and correspondingly, the center of the connecting disc (7) is provided with a positioning column hole (7 e).
7. A bolt-fastened crankshaft power take-off assembly according to any one of claims 1-6, characterized in that at least two flat keys (5) are provided between the driving gear (2) and the crankshaft (1).
8. A bolt-fastened crankshaft power take-off assembly according to any one of claims 1-6, characterized in that sealing rings (12) are arranged between the driving gear (2) and the shaft shoulder of the crankshaft (1) and between the driving gear (2) and the connecting disc (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920635125.XU CN210128054U (en) | 2019-05-06 | 2019-05-06 | Bolt-up formula bent axle power take off subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920635125.XU CN210128054U (en) | 2019-05-06 | 2019-05-06 | Bolt-up formula bent axle power take off subassembly |
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| Publication Number | Publication Date |
|---|---|
| CN210128054U true CN210128054U (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920635125.XU Active CN210128054U (en) | 2019-05-06 | 2019-05-06 | Bolt-up formula bent axle power take off subassembly |
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| CN (1) | CN210128054U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005787A (en) * | 2019-05-06 | 2019-07-12 | 广西玉柴机器股份有限公司 | A kind of bolt matable bent axle power output precision |
| CN114323400A (en) * | 2021-12-31 | 2022-04-12 | 四川飞亚动力科技股份有限公司 | Torsion detection device for crankshaft flange plate |
-
2019
- 2019-05-06 CN CN201920635125.XU patent/CN210128054U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005787A (en) * | 2019-05-06 | 2019-07-12 | 广西玉柴机器股份有限公司 | A kind of bolt matable bent axle power output precision |
| CN110005787B (en) * | 2019-05-06 | 2024-03-26 | 广西玉柴机器股份有限公司 | Bolt-up formula bent axle power take off subassembly |
| CN114323400A (en) * | 2021-12-31 | 2022-04-12 | 四川飞亚动力科技股份有限公司 | Torsion detection device for crankshaft flange plate |
| CN114323400B (en) * | 2021-12-31 | 2024-01-30 | 四川飞亚动力科技股份有限公司 | Torsion detection device of crankshaft flange |
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