CN218717121U - Medium speed diesel engine with stepless speed change output device - Google Patents
Medium speed diesel engine with stepless speed change output device Download PDFInfo
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- CN218717121U CN218717121U CN202222792029.0U CN202222792029U CN218717121U CN 218717121 U CN218717121 U CN 218717121U CN 202222792029 U CN202222792029 U CN 202222792029U CN 218717121 U CN218717121 U CN 218717121U
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Abstract
The utility model discloses a medium speed diesel engine with a stepless speed change output device, which belongs to the technical field of diesel engines, the medium speed diesel engine with the stepless speed change output device is provided with a rotating crankshaft, the stepless speed change output device is arranged on the engine body, and the stepless speed change output device comprises an outer box body and a transmission device; the outer box body is fixed at the front end of the machine body; the transmission device comprises a driving gear, a driven gear, a slip clutch, a transmission shaft and an external power output shaft, wherein the transmission shaft and the external power output shaft are arranged in a rotating mode, one end of a crankshaft extends into the outer box body, the driving gear is fixedly arranged at the extending end of the crankshaft, the driven gear is meshed with the driving gear and fixedly arranged on the transmission shaft, the transmission shaft and the external power output shaft are arranged coaxially, the transmission shaft and the external power output shaft are connected through the slip clutch, and one end of the external power output shaft extends out of the outer box body. The stepless speed change output requirement is realized, the machine body can be used for matching equipment with different rotating speeds, and the problem that the ship with a narrow space is difficult to arrange is solved.
Description
Technical Field
The utility model relates to a diesel engine technical field, concretely relates to take infinitely variable output device's medium speed diesel engine.
Background
When a propulsion system of a ship is designed, a medium-speed engine is considered to be used for driving equipment such as a generator and a pump to a matched shaft of an external power output shaft (PTO). Because the medium-speed diesel engine has low rotating speed and the requirement on the rated rotating speed of the corollary equipment is high, a gearbox is additionally arranged between the medium-speed diesel engine and the corollary equipment to meet the requirement on the high rotating speed of the corollary equipment. As shown in fig. 1, an output shaft 101 of a medium speed diesel engine 1 is connected to a speed-up gear box 3 (or a gearbox) through a first high-elasticity coupling 2, and is externally connected with a shaft-driven generator 5 through the speed-up gear box 3 and a second elastic coupling 4. Although the speed change box can meet the requirement of rotating speed of equipment such as a shaft generator, a pump and the like, the speed change box, peripheral equipment, pipelines and the like occupy large space, and the arrangement of a small-sized ship with narrow space is difficult.
Therefore, a medium-speed diesel engine with a stepless speed change output shaft is needed to be designed, the requirement of matching equipment with different rotating speeds can be met without additionally arranging a gearbox, and the problem of interval arrangement of narrow and small ships is solved.
The patent designs a medium speed diesel engine with a stepless speed change output device, can meet the requirement of matching different rotating speed equipment without additionally arranging a gearbox, and solves the problem of difficult arrangement of a ship with a narrow space.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect of prior art, the utility model aims to solve the technical problem that a take infinitely variable output device's medium speed diesel engine is provided, infinitely variable output can be realized for engine organism front end can be used for supporting different equipment, and occupation space is little, has solved the problem that the space is narrow and small boats and ships arrange the difficulty.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a take infinitely variable output device's medium speed diesel engine, includes the organism, the organism is provided with pivoted bent axle, its characterized in that:
the machine body is provided with a stepless speed change output device, and the stepless speed change output device comprises an outer box body and a transmission device;
the outer box body is fixed at the front end of the machine body;
the transmission device comprises a driving gear, a driven gear, a slip clutch, a transmission shaft and an external power output shaft, wherein the transmission shaft and the external power output shaft are arranged in a rotating mode, one end of the crankshaft extends into the outer box body, the driving gear is fixedly arranged at the extending end of the crankshaft, the driven gear is meshed with the driving gear and fixedly arranged on the transmission shaft, the transmission shaft and the external power output shaft are coaxially arranged, the transmission shaft is connected with the external power output shaft through the slip clutch, and one end of the external power output shaft extends out of the outer box body.
Preferably: the driving gear, the driven gear, the transmission shaft and the slip clutch are positioned in the outer box body.
Preferably: the crankshaft is arranged perpendicular to the transmission shaft and the external power output shaft in an eccentric manner.
Preferably: the crankshaft, the transmission shaft and the external power output shaft are horizontally arranged eccentrically.
Preferably, the following components: and a first bearing and a second bearing are respectively arranged between the two ends of the transmission shaft and the inner wall of the outer box body, and a third bearing is arranged between the external power output shaft and the inner wall of the outer box body.
Preferably: and the extending end of the external power output shaft is connected with a mounting flange.
Preferably: the medium speed diesel engine with the stepless speed change output device is connected with a shaft generator through a coupler.
Preferably, the following components: and the mounting flange of the extending end of the external power output shaft is fixed on the coupler.
Preferably: the outer box body comprises an upper box body and a lower box body, and the upper box body and the lower box body are respectively connected with the machine body through bolts.
Preferably: the stepless speed change output device is provided with a hydraulic oil pipe, one end of the hydraulic oil pipe is connected with an external hydraulic pump, and the other end of the hydraulic oil pipe penetrates through the outer box body to be connected with the slip clutch.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
the utility model discloses a medium speed diesel engine with a stepless speed change output device, which is provided with the stepless speed change output device at the front end of the original engine body, wherein the stepless speed change output device comprises an outer box body and a transmission device; the outer box body is fixed on the front end of the machine body; the transmission device comprises a driving gear, a driven gear, a slip clutch, a transmission shaft and an external power output shaft, wherein the transmission shaft and the external power output shaft are arranged in a rotating mode, one end of a crankshaft extends into the outer box body, the driving gear is fixedly arranged at the extending end of the crankshaft, the driven gear is meshed with the driving gear and fixedly arranged on the transmission shaft, the transmission shaft and the external power output shaft are arranged coaxially, the transmission shaft and the external power output shaft are connected through the slip clutch, and one end of the external power output shaft extends out of the outer box body. The medium-speed diesel engine with the stepless speed change output device can meet the requirement of stepless speed change output, so that the front end of the engine body can be used for matching different equipment, and simultaneously shares a set of lubricating oil system and cooling system with the engine, thereby reducing the application of peripheral equipment and pipelines, reducing the occupied space and lowering the use cost of users. The requirement of matching different rotating speed equipment can be met without additionally arranging a gearbox, and the problem that a ship with a narrow space is difficult to arrange is solved.
Drawings
FIG. 1 is a schematic diagram of a prior art medium speed diesel engine with an associated shaft generator;
FIG. 2 is a schematic structural diagram of a medium speed diesel engine with a continuously variable output device according to the present invention;
FIG. 3 is a schematic structural view of the continuously variable output device;
fig. 4 is a schematic diagram of the middle speed diesel engine with a stepless speed change output device of the utility model with a shaft generator;
in the figure: 1. a medium speed diesel engine; 101. an output shaft; 2. a first high-elasticity coupling; 3. a speed-increasing gear box; 4. a second resilient coupling; 5. a shaft-driven generator; 6. a body; 7. a crankshaft; 8. a step variable output device; 81. an outer case; 811. an upper box body; 812. a lower box body; 82. a driving gear; 83. a driven gear; 84. a slip clutch; 85. a drive shaft; 86. an external power output shaft; 861. installing a flange; 87. a first bearing; 88. a second bearing; 89. a third bearing; 9. a hydraulic oil pipe; 10. a coupling is provided.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided in conjunction with the accompanying drawings and specific embodiments for further understanding the objects, aspects and functions of the present invention, but not for limiting the scope of the appended claims.
The medium speed diesel engine with the stepless speed change output device as shown in fig. 2 and fig. 3 comprises a machine body 6, wherein the machine body 6 is provided with a rotating crankshaft 7, the machine body 6 is provided with the stepless speed change output device 8, and the stepless speed change output device 8 comprises an outer box 81 and a transmission device; the outer box 81 is fixed to the front end of the body 6; the transmission device comprises a driving gear 82, a driven gear 83, a slip clutch 84, a transmission shaft 85 and an external power output shaft 86, the transmission shaft 85 and the external power output shaft 86 are rotatably arranged, one end of the crankshaft 7 extends into the outer box 81, the driving gear 82 is fixedly arranged at the extending end of the crankshaft 7, the driven gear 83 is meshed with the driving gear 82 and is fixedly arranged on the transmission shaft 85, the transmission shaft 85 and the external power output shaft 86 are coaxially arranged, the transmission shaft 85 and the external power output shaft 86 are connected through the slip clutch 84, and one end of the external power output shaft 86 extends out of the outer box 81.
The drive gear 82, the driven gear 83, the transmission shaft 85, and the slip clutch 84 are disposed in the outer case 81.
As shown in fig. 3, the crankshaft 7 is preferably disposed vertically and eccentrically to the transmission shaft 85 and the pair of external power output shafts 86. Of course, the following structure may be provided: the crankshaft 7 is horizontally arranged eccentrically with the transmission shaft 85 and the external power output shaft 86. Or the crankshaft 7 is eccentrically arranged with respect to the transmission shaft 85 and the external power output shaft 86. The method is specifically set according to use requirements.
A first bearing 87 and a second bearing 88 are respectively arranged between two ends of the transmission shaft 85 and the inner wall of the outer box 81, and a third bearing 89 is arranged between the external power output shaft 86 and the inner wall of the outer box 81.
As shown in fig. 4, a mounting flange 861 is attached to the projecting end of the external power take-off shaft 86. The medium speed diesel engine with the stepless speed change output device 8 is connected with a shaft generator 5 through a coupler 10. The mounting flange of the protruding end of the external power output shaft 86 is fixed to the coupling 10.
The outer box 81 includes an upper box 811 and a lower box 812, and the upper box 811 and the lower box 812 are respectively bolted to the machine body 6 by bolts. The outer case 81 is divided into an upper case 811 and a lower case 812 for easy installation and removal.
The stepless speed change output device 8 is provided with a hydraulic oil pipe 9, one end of the hydraulic oil pipe 9 is connected with an external hydraulic pump, and the other end of the hydraulic oil pipe 9 penetrates through the outer box 81 to be connected with the slip clutch 84.
The oil inlet hole of the outer box 81 is connected with the oil hole of the machine body 6 for the splash lubrication and cooling of the stepless speed change output device 8 and the bearing. And the built-in oil return hole is used for returning the lubricating oil to an engine oil sump from the inside of the stepless speed change output device.
The crankshaft 7 is used as power input, the driving gear 82 is meshed with the driven gear 83, the transmission ratio of the driving gear 82 and the driven gear 83 is designed according to 3. The driven gear 83 is mounted on the transmission shaft 85, and a first bearing 87 and a second bearing 88 are provided at both ends of the transmission shaft 85 as supports, wherein one end of the transmission shaft 85 is mounted on the outer case 81 through the first bearing 87, and the other end is fixed on the second bearing 88 and connected with the housing of the slip clutch 84. The external power output shaft 86 is fixed on the outer box 81 through a third bearing, one end of the external power output shaft 86 extends out of the outer box and is fixedly connected with a mounting flange 861, and the other end of the external power output shaft is connected with the shell of the slip clutch 84; the slip clutch 84 is connected to the hydraulic oil pipe 9 provided outside through the outer case 81.
The hydraulic oil pipe 9 is used as a control source of the slip clutch 84, and the speed change can be divided into two working conditions, namely a discharging working condition and a combining working condition. When the drainage is performed, the output pressure of the hydraulic oil pipe 9 is 0, the slip clutch 84 is not stressed, and the output rotating speed of the external power output shaft 86 is 0; when the row combination is carried out, the two conditions of constant speed and stepless speed change are divided into: at a fixed speed, the hydraulic oil pipe input pressure is fixed as required, the slip clutch 84 is controlled to a certain fixed speed ratio, generally the speed ratio is controlled to be in the range of (1; during stepless speed change, the output pressure of the hydraulic oil pipe 9 is continuously controlled, so that the slip clutch 84 continuously and linearly works, and the rotating speed of the external power output shaft 86 is controlled to be (0-1): the output speed is continuously converted at a speed ratio of 3.
The utility model discloses take infinitely variable output device's intermediate speed diesel engine sets up infinitely variable output device at the front end of original engine organism, infinitely variable output device is provided with the slip clutch, can realize infinitely variable output requirement for engine organism front end can be used for the equipment of supporting different rotational speeds, simultaneously with one set of lubricating oil system and cooling system of engine sharing, peripheral equipment has been reduced, the application of pipeline, occupation space is reduced, and user's use cost has been reduced. The requirement of matching different rotating speed equipment can be met without additionally arranging a gearbox, and the problem that a ship with a narrow space is difficult to arrange is solved.
The present invention is not limited to the above embodiments, and all improvements made based on the concept, principle, structure and method of the present invention are all within the protection scope of the present invention.
Claims (10)
1. The utility model provides a take infinitely variable output device's medium speed diesel engine, includes the organism, the organism is provided with pivoted bent axle, its characterized in that:
the machine body is provided with a stepless speed change output device, and the stepless speed change output device comprises an outer box body and a transmission device;
the outer box body is fixed at the front end of the machine body;
the transmission device comprises a driving gear, a driven gear, a slip clutch, a transmission shaft and an external power output shaft, wherein the transmission shaft and the external power output shaft are rotatably arranged, one end of the crankshaft extends into the outer box body, the driving gear is fixedly arranged at the extending end of the crankshaft, the driven gear is meshed with the driving gear and fixedly arranged on the transmission shaft, the transmission shaft and the external power output shaft are coaxially arranged, the transmission shaft is connected with the external power output shaft through the slip clutch, and one end of the external power output shaft extends out of the outer box body.
2. A medium speed diesel engine with a continuously variable output as claimed in claim 1 wherein: the driving gear, the driven gear, the transmission shaft and the slip clutch are positioned in the outer box body.
3. A medium speed diesel engine with a continuously variable output as claimed in claim 2 wherein:
the crankshaft is arranged perpendicular to the transmission shaft and the external power output shaft in an eccentric manner.
4. A medium speed diesel engine with a continuously variable output as claimed in claim 2 wherein:
the crankshaft, the transmission shaft and the external power output shaft are horizontally arranged eccentrically.
5. A medium speed diesel engine with a continuously variable output as claimed in claim 2 wherein: and a first bearing and a second bearing are respectively arranged between the two ends of the transmission shaft and the inner wall of the outer box body, and a third bearing is arranged between the external power output shaft and the inner wall of the outer box body.
6. A medium speed diesel engine with a continuously variable output device according to claim 1 or 2, characterized in that: and the extending end of the external power output shaft is connected with a mounting flange.
7. A medium speed diesel engine with a continuously variable output as claimed in claim 6 wherein: the medium speed diesel engine with the stepless speed change output device is connected with a shaft generator through a coupler.
8. A medium speed diesel engine with a continuously variable output according to claim 7, characterized in that: and the mounting flange of the extending end of the external power output shaft is fixed on the coupler.
9. A medium speed diesel engine with a continuously variable output as claimed in claim 1 wherein: the outer box body comprises an upper box body and a lower box body, and the upper box body and the lower box body are respectively connected with the machine body through bolts.
10. A medium speed diesel engine with a continuously variable output as claimed in claim 1 wherein: the stepless speed change output device is provided with a hydraulic oil pipe, one end of the hydraulic oil pipe is connected with an external hydraulic pump, and the other end of the hydraulic oil pipe penetrates through the outer box body to be connected with the slip clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222792029.0U CN218717121U (en) | 2022-10-21 | 2022-10-21 | Medium speed diesel engine with stepless speed change output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222792029.0U CN218717121U (en) | 2022-10-21 | 2022-10-21 | Medium speed diesel engine with stepless speed change output device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218717121U true CN218717121U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222792029.0U Active CN218717121U (en) | 2022-10-21 | 2022-10-21 | Medium speed diesel engine with stepless speed change output device |
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| Country | Link |
|---|---|
| CN (1) | CN218717121U (en) |
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2022
- 2022-10-21 CN CN202222792029.0U patent/CN218717121U/en active Active
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