CN215170361U - Front-end power output device of marine engine - Google Patents
Front-end power output device of marine engine Download PDFInfo
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- CN215170361U CN215170361U CN202121453716.9U CN202121453716U CN215170361U CN 215170361 U CN215170361 U CN 215170361U CN 202121453716 U CN202121453716 U CN 202121453716U CN 215170361 U CN215170361 U CN 215170361U
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- transmission shaft
- belt pulley
- transmission case
- marine engine
- power output
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- 230000005540 biological transmission Effects 0.000 claims abstract description 100
- 230000008878 coupling Effects 0.000 claims abstract description 25
- 238000010168 coupling process Methods 0.000 claims abstract description 25
- 238000005859 coupling reaction Methods 0.000 claims abstract description 25
- 238000003780 insertion Methods 0.000 claims abstract description 12
- 230000037431 insertion Effects 0.000 claims abstract description 12
- 239000006096 absorbing agent Substances 0.000 claims abstract description 11
- 230000035939 shock Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a front end power take off of marine engine relates to engine power take off, has solved the bent axle and can receive side direction torsion, influences its operation, appears the technical problem of disconnected axle phenomenon even. The universal transmission shaft comprises a crankshaft belt pulley shock absorber, a belt pulley, a universal transmission shaft, a transmission shaft and a taper coupling; one end of the universal transmission shaft is arranged on the crankshaft belt pulley shock absorber, the other end of the universal transmission shaft is arranged on the taper coupling, one end of the transmission shaft is provided with a conical insertion end, and the conical insertion end is arranged in the taper coupling; the outside of transmission shaft is equipped with the transmission case, the transmission shaft rotates with the transmission case to be connected, transmission case fixed mounting is on engine compartment, the belt pulley is installed at the other end of transmission shaft. The utility model discloses rational in infrastructure, practical reliable, greatly reduced the side direction torsional moment force that the bent axle received, played the effect of protection bent axle.
Description
Technical Field
The utility model relates to an engine power take-off, more specifically say, it relates to a front end power take-off of marine engine.
Background
The engine is used as a power source for advancing the ship and mainly used as the propelling power of the ship. The power take-off of the engine will also be subjected to a greater resistance due to the greater resistance to the ship during its forward travel. As shown in fig. 1, in the conventional engine power output apparatus, a pulley is directly mounted on a crankshaft pulley damper. During the operation of the belt pulley, a large lateral torsion force is generated, so that the crankshaft is also under the action of the lateral torsion force. The lateral torque is not beneficial to the operation of the crankshaft, and if the lateral torque is too large, the situation of shaft breakage is easy to occur.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is not enough to prior art, a front end power take off of marine engine is provided, has solved the bent axle and can receive side direction torsion, influences its operation, appears the problem of disconnected axle phenomenon even.
The technical scheme of the utility model lies in: a front-end power output device of a marine engine comprises a crankshaft belt pulley shock absorber, a belt pulley, a universal transmission shaft, a transmission shaft and a taper coupling; one end of the universal transmission shaft is arranged on the crankshaft belt pulley shock absorber, the other end of the universal transmission shaft is arranged on the taper coupling, and one end of the transmission shaft is arranged in the taper coupling; the outside of transmission shaft is equipped with the transmission case, the transmission shaft rotates with the transmission case to be connected, transmission case fixed mounting is in engine compartment, the belt pulley is installed at the other end of transmission shaft.
The improved structure is characterized in that a conical insertion end is arranged at the end part of the transmission shaft, a conical mounting hole matched with the conical insertion end is formed in the conical coupling, the conical insertion end is inserted into the conical mounting hole, a key groove is formed in the conical mounting hole, a semicircular key is arranged in the key groove, and the semicircular key is inserted into the conical insertion end.
Furthermore, a positioning groove is arranged on the outer side of the conical mounting hole, a fixing plate is arranged in the positioning groove, and the fixing plate is mounted on the conical insertion end through a locking bolt.
Furthermore, a positioning step is arranged on the transmission shaft, two bearings are arranged on two sides of the positioning step, and the bearings are arranged in the transmission case; the positioning step is in contact connection with inner rings of two adjacent bearings, a bearing space ring is arranged between the two bearings on one side of the positioning step, and the bearing space ring is in contact connection with the inner rings of the bearings.
Furthermore, a stop step is arranged on one side of the transmission case close to the belt pulley, and the stop step is in contact connection with an outer ring of a bearing close to the belt pulley; and a sealing cover plate is arranged on the other side of the transmission case and is connected with an outer ring of a bearing close to the taper coupling in a contact manner.
Furthermore, a first oil seal is arranged between the closed cover plate and the transmission shaft, and a second oil seal is arranged between one end, close to the belt pulley, of the transmission case and the transmission shaft.
Furthermore, a sealing gasket is arranged between the sealing cover plate and the transmission case.
Advantageous effects
The utility model has the advantages that: the belt pulley is connected with the crankshaft belt pulley shock absorber through the universal transmission shaft and the transmission shaft, the transmission shaft is installed in the engine compartment through the transmission case, and the transmission shaft is transferred to the transmission case by the lateral torque force of the belt pulley, so that the lateral torque force borne by the crankshaft is greatly reduced, the effect of protecting the crankshaft is achieved, and the reliability of the engine is greatly improved. The transmission shaft is connected with the universal transmission shaft through the taper coupling, so that the connection reliability of the transmission shaft and the universal transmission shaft can be effectively improved. The bearing is positioned and limited through the positioning step, the bearing spacer ring and the stop step, and the phenomenon of play of the bearing is effectively avoided.
Drawings
FIG. 1 is a schematic view of a conventional power output apparatus;
fig. 2 is a schematic structural view of the power output apparatus of the present invention.
Wherein: 1-belt pulley, 2-belt pulley bolt, 3-second oil seal, 4-bearing, 5-fixed mount, 6-transmission case, 7-sealing gasket, 8-sealing cover plate, 9-taper coupler, 10-coupler fastening screw, 11-universal transmission shaft, 12-fastening screw, 13 crankshaft belt pulley shock absorber, 17-fixed plate, 18-semicircular key, 19-cover plate fastening screw, 20-transmission shaft, 21-bearing space ring and 22-belt.
Detailed Description
The present invention will be further described with reference to the following examples, which are not intended to limit the scope of the present invention, but are intended to be covered by the appended claims in any way.
Referring to fig. 2, the utility model discloses a front end power take off of marine engine, including crankshaft pulley shock absorber 13 and belt pulley 1, still include universal drive shaft 11, transmission shaft 20 and taper coupling 9. One end of a universal transmission shaft 11 is installed on a crankshaft belt pulley shock absorber 13, the other end of the universal transmission shaft 11 is installed on a taper coupling 9, one end of a transmission shaft 20 is provided with a taper inserting end, the taper inserting end is inserted into the taper coupling 9, and the taper inserting end is fixedly connected with the taper coupling 9. The transmission case 6 is arranged on the outer side of the transmission shaft 20, the transmission shaft 20 is rotatably connected with the transmission case 6, and the transmission case 6 is fixedly arranged in the engine compartment. Specifically, two fixing frames 5 are arranged on the side wall of the transmission case 6, and the two fixing frames 5 are fixedly installed on the engine compartment through bolts. The pulley 1 is mounted on the other end of the drive shaft 20. The belt pulley 1 of the embodiment is connected with the crankshaft belt pulley shock absorber 13 through the universal transmission shaft 11 and the transmission shaft 20, the transmission shaft 20 is installed in an engine compartment through the transmission box 6, and the transmission shaft 20 is transferred to the transmission box 6 by the lateral torque force of the belt pulley 1, so that the lateral torque force of the crankshaft is greatly reduced, the effect of protecting the crankshaft is achieved, and the reliability of an engine is greatly improved.
The taper coupling 9 is provided with a taper mounting hole matched with the taper inserting end, the taper mounting hole is provided with a key groove, the taper inserting end is inserted in the taper mounting hole, the key groove is provided with a semi-circular key 18, and the semi-circular key 18 is inserted in the taper inserting end. The taper coupling 9 is connected with the transmission shaft 20, so that the transmission shaft 20 can be tightly inserted into the taper coupling 9, and the connection reliability is improved. The arrangement of the semicircular key 18 can ensure that the connection between the transmission shaft 20 and the taper coupling 9 is reliable and does not rotate relatively.
The constant head tank is set for in the outside of toper mounting hole, is equipped with fixed plate 17 in the constant head tank, and fixed plate 17 passes through locking bolt and installs on the toper is pegged graft and is served for take-up transmission shaft 20 in taper coupling 9, improve transmission shaft 20 and taper coupling 9's connection reliability greatly.
Be equipped with the location step on the transmission shaft 20, the both sides of location step all are equipped with two bearings 4, and bearing 4 installs in transmission case 6, realizes the rotation installation of transmission shaft 20. The positioning steps are in contact connection with the inner rings of the two adjacent bearings 4, a bearing space ring 21 is arranged between the two bearings 4 on one side of the positioning steps, and the bearing space ring 21 is in contact connection with the inner rings of the bearings 4. The positioning step and the bearing spacer 21 are used for positioning the bearing, so that the bearing is prevented from moving along the axial direction of the transmission shaft 20.
One side of the transmission case 6 close to the belt pulley 1 is provided with a stop step, and the stop step is connected with an outer ring of the bearing 4 close to the belt pulley 1 in a contact manner. And a closed cover plate 8 is arranged on the other side of the transmission case 6, and the closed cover plate 8 is connected with the outer ring of the bearing 4 close to the taper coupling 9 in a contact manner. During installation, the bearing 4 is installed in the transmission case 6 from one end of the transmission case 6, and after the bearing 4 is installed, the sealing cover plate 8 is installed, so that the operation is simple and convenient.
Be equipped with first oil blanket between closing cover 8 and the transmission shaft 20, be equipped with second oil blanket 3 between the one end that transmission case 6 is close to belt pulley 1 and the transmission shaft 20 to realize the sealed of transmission case 6, ensure the lubricated effect of transmission case 6 inner bearing 4 and transmission shaft 20.
A sealing gasket 7 is arranged between the sealing cover plate 8 and the transmission case 6, so that the sealing performance of the transmission case 6 is improved.
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 (7)
1. A front-end power output device of a marine engine comprises a crankshaft belt pulley shock absorber (13) and a belt pulley (1), and is characterized by further comprising a universal transmission shaft (11), a transmission shaft (20) and a taper coupling (9); one end of the universal transmission shaft (11) is arranged on the crankshaft belt pulley shock absorber (13), the other end of the universal transmission shaft (11) is arranged on the taper coupling (9), and one end of the transmission shaft (20) is arranged in the taper coupling (9); the outside of transmission shaft (20) is equipped with transmission case (6), transmission shaft (20) and transmission case (6) rotate to be connected, transmission case (6) fixed mounting is in the engine compartment, the other end at transmission shaft (20) is installed in belt pulley (1).
2. The front-end power output device of the marine engine according to claim 1, wherein a tapered insertion end is provided at an end of the transmission shaft (20), a tapered mounting hole adapted to the tapered insertion end is provided in the tapered coupling (9), the tapered insertion end is inserted in the tapered mounting hole, a key groove is provided in the tapered mounting hole, a half-round key (18) is provided in the key groove, and the half-round key (18) is inserted in the tapered insertion end.
3. The front-end power output device of the marine engine according to claim 2, characterized in that a positioning groove is formed outside the conical mounting hole, a fixing plate (17) is arranged in the positioning groove, and the fixing plate (17) is mounted on the conical insertion end through a locking bolt.
4. The front-end power output device of a marine engine according to claim 1, characterized in that a positioning step is provided on the transmission shaft (20), two bearings (4) are provided on both sides of the positioning step, and the bearings (4) are installed in a transmission case (6); the positioning step is in contact connection with inner rings of two adjacent bearings (4), a bearing space ring (21) is arranged between the two bearings (4) on one side of the positioning step, and the bearing space ring (21) is in contact connection with the inner rings of the bearings (4).
5. The front-end power output device of the marine engine according to claim 4, characterized in that the side of the transmission case (6) close to the pulley (1) is provided with a stop step, and the stop step is in contact connection with the outer ring of the bearing (4) close to the pulley (1); and a sealing cover plate (8) is installed on the other side of the transmission case (6), and the sealing cover plate (8) is connected with an outer ring of the bearing (4) close to the taper coupling (9) in a contact manner.
6. The front-end power output device of the marine engine according to claim 5, characterized in that a first oil seal is arranged between the closing cover plate (8) and the transmission shaft (20), and a second oil seal (3) is arranged between one end of the transmission case (6) close to the belt pulley (1) and the transmission shaft (20).
7. A front-end power take-off of a marine engine according to claim 5, characterised in that a sealing gasket (7) is provided between the closing cover (8) and the transmission case (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121453716.9U CN215170361U (en) | 2021-06-29 | 2021-06-29 | Front-end power output device of marine engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121453716.9U CN215170361U (en) | 2021-06-29 | 2021-06-29 | Front-end power output device of marine engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215170361U true CN215170361U (en) | 2021-12-14 |
Family
ID=79380366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121453716.9U Active CN215170361U (en) | 2021-06-29 | 2021-06-29 | Front-end power output device of marine engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215170361U (en) |
-
2021
- 2021-06-29 CN CN202121453716.9U patent/CN215170361U/en active Active
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