CN110925084A - Double-end power take-off diesel generator set - Google Patents
Double-end power take-off diesel generator set Download PDFInfo
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- CN110925084A CN110925084A CN201911171832.9A CN201911171832A CN110925084A CN 110925084 A CN110925084 A CN 110925084A CN 201911171832 A CN201911171832 A CN 201911171832A CN 110925084 A CN110925084 A CN 110925084A
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- flywheel
- bent axle
- flywheel body
- crankshaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
- F02B63/042—Rotating electric generators
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a double-end power take-off diesel generator set, which belongs to the technical field of diesel generators and comprises a crankshaft, wherein a threaded hole at the flywheel end of the crankshaft is fixedly provided with a flywheel body through a high-strength bolt, and one side of the flywheel body, which is far away from the crankshaft, is fixedly provided with a flywheel gear ring through a bolt, and the double-end power take-off diesel generator set is characterized in that: the free end of bent axle is the same through the high strength bolt installation flywheel body, axle center department between flywheel body and the bent axle is through location step shaft location, location step shaft is installed on the ring platform of bent axle free end, the flywheel body is same deviating from bent axle one side and is being same through bolt fixed mounting flywheel ring gear. The invention solves the problems that the existing design scheme can only generate electricity through one end of the diesel engine, a generator with larger power, complex structure and high price needs to be installed, the installation precision requirement is high, the guarantee is not easy, and the like.
Description
Technical Field
The invention relates to a double-end power take-off diesel generator set, and belongs to the technical field of diesel generators.
Background
The diesel engine of the diesel generating set is very important to be connected with the generator in a positioning mode, and the poor connection precision easily causes damage to connection threads, shaking of the generator and even serious consequences of sweeping the chamber of the generator. The generator elastic connecting shaft of the existing diesel generator set is connected with the flywheel end of the diesel engine in an accurate positioning mode through position restraint of a plurality of contact surfaces.
An invention patent with the publication number of CN205805413U of Zhejiang Kaishan heavy industry Co., Ltd provides a design scheme of adopting double-end power output for a generator: the power transmission is realized through a coupler, one end of the coupler provides hydraulic power, and the other end of the coupler provides air source power. The existing problems can be briefly summarized as follows: firstly, the high-power generator has higher requirement on the connection precision because of large transmission torque. And on the other hand, when the generator fails, the single generator type generator set cannot work normally, and on the contrary, if the two ends of the diesel engine are connected with the generators, when one generator fails, the other generator can also reduce the generated energy to support the operation of the whole generator set in a short time. Thirdly, the high-power generator has a complex structure and high cost.
Disclosure of Invention
The invention aims to provide a double-end power take-off diesel generator set, which solves the problems that the existing design scheme can only generate power through one end of a diesel engine, a generator with larger power, a complex structure and high price is required to be installed, the requirement on installation precision is high, the guarantee is difficult and the like by adopting a mode that the double ends of a crankshaft of the diesel engine are connected with a flywheel and then the flywheel is connected with the generator. Meanwhile, a special mounting and positioning device is designed, and the problem of accurate positioning of a flywheel mounted at the free end of a crankshaft of a common diesel engine is solved.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a bi-polar power take-off diesel generating set, includes the bent axle, the screw hole of bent axle flywheel end passes through high strength bolt fixed mounting flywheel body, the flywheel body deviates from bent axle one side and passes through bolt fixed mounting flywheel ring gear, its characterized in that: the free end of bent axle is the same through the high strength bolt installation flywheel body, axle center department between flywheel body and the bent axle is through location step shaft location, location step shaft is installed on the ring platform of bent axle free end, the flywheel body is same deviating from bent axle one side and is being same through bolt fixed mounting flywheel ring gear.
The technical scheme of the invention is further improved as follows: the small shaft section of the positioning stepped shaft is in interference fit with the crankshaft, and the interference magnitude is 0.02 mm.
The technical scheme of the invention is further improved as follows: the large shaft section of the positioning stepped shaft is in clearance fit with the central hole of the flywheel body, so that the flywheel body can rotate around the axis of the flywheel body after being arranged in the large shaft section of the positioning stepped shaft.
The technical scheme of the invention is further improved as follows: and a diamond friction plate which is matched and aligned with the threaded hole at the end part of the crankshaft is sleeved between the crankshaft and the positioning stepped shaft.
The technical scheme of the invention is further improved as follows: the center of the large shaft section of the positioning stepped shaft is provided with a hole for mounting and dismounting, and a thread is arranged in the hole.
Due to the adoption of the technical scheme, the invention has the following technical effects:
the invention adopts the mode that the two ends of the crankshaft of the diesel engine are connected with the flywheel and then connected with the generator through the flywheel, and solves the problems that the existing design scheme can only generate electricity through one end of the diesel engine, needs to install the generator with larger power, complex structure and high price, has high requirement on installation precision, is not easy to ensure, and the like. Meanwhile, a special mounting and positioning device is designed, and the problem of accurate positioning of a flywheel mounted at the free end of a crankshaft of a common diesel engine is solved.
The double-flywheel structure is favorable for improving the dynamic balance performance of the diesel engine, ensures the stability of the rotating speed of the diesel engine, improves the working stability of the diesel generating set and reduces the oil consumption.
The design of double generators of the diesel generator set ensures that one generator fails and the other generator can work in a short time on one hand, so that the complete halt of the whole generator set is avoided; on the other hand, the double-generator structure can realize free distribution of power output, the power output at two ends is not interfered with each other, and a user can use the generator equipment more economically and conveniently according to actual conditions.
Use the step shaft to realize the accurate installation location of bent axle free end and flywheel, and the operation is simple, be favorable to the promotion of installation effectiveness, all degrees of freedom of the flywheel except the degree of freedom of axis line direction rotation have been retrained through the microcephaly face of cylinder and the major part terminal surface of step shaft, through the rotatory flywheel of small width, only need guarantee that flywheel screw hole aligns with the bent axle screw hole and alright carry out the tightening of a plurality of high strength bolts fast, thereby accomplish the installation of flywheel, and can eliminate the beating of flywheel in the installation, and the assembly efficiency is improved. Moreover, the stepped shaft has simple structure and low manufacturing cost in mass production.
Drawings
FIG. 1 is an exploded view of a flywheel of a double-end power take-off diesel generator set according to the present invention;
FIG. 2 is an assembly view of a flywheel of a double-end power take-off diesel generating set according to the invention;
FIG. 3 is a schematic structural view of the flywheel mounting positioning stepped shaft of the present invention.
Wherein, 1, high-strength bolt; 2. a flywheel ring gear; 3. a flywheel body; 4. a crankshaft; 5. a diamond friction plate is arranged; 6. and positioning the stepped shaft.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific embodiments:
the invention discloses a double-end power take-off diesel generator set, which comprises a crankshaft 4, wherein a plurality of threaded holes are uniformly formed in the end surfaces of a flywheel end and a free end of the crankshaft 4 along the circumferential direction of the surface of the end surfaces, the flywheel end of the crankshaft 4 is fixedly connected with a flywheel body 3 through a high-strength bolt 1, the flywheel body 3 is of a disc structure, a threaded hole mounting platform is integrally formed at the position, corresponding to the threaded hole on the end surface of the crankshaft 4, of the flywheel body 3, the threaded hole mounting platform is stepped and protrudes from the position far away from the crankshaft 4 to the position close to the crankshaft 4, the flywheel body 3 is fixedly mounted on the crankshaft 4 through the high-strength bolt 1, a stepped platform is integrally formed on the surface of one side, away from the crankshaft 4, of the flywheel body 3, a flywheel gear ring 2 is sleeved on the stepped platform, and the gear ring 2.
The free end of the crankshaft 4 is also fixedly provided with a flywheel body 3 through a high-strength bolt 1, one side of the flywheel body 3, which is far away from the crankshaft 4, is also provided with a flywheel gear ring 2, a circular ring platform is fixedly arranged at the center of the free end of the crankshaft 4 in a fixing mode of welding, integral forming and the like, threaded holes on the crankshaft 4 are formed around the circular ring platform, a positioning stepped shaft 6 for positioning the flywheel body 3 is arranged in the circular ring platform, the small shaft section of the positioning stepped shaft 6 is in interference fit with the circular ring platform of the crankshaft 4, the interference magnitude is 0.02mm, the large shaft section of the positioning stepped shaft 6 is in clearance fit with the central hole of the flywheel body 3, the rotational freedom degree of the flywheel body 3 in the direction around the axis after being arranged at the large head end of the positioning stepped shaft 6 is ensured, the threaded holes in the flywheel body 3 are aligned with the threaded holes in the free end of the crankshaft 4 by rotating the flywheel body 3, and the flywheel body 3 is prevented from jumping in the process of screwing the high-strength bolts 1; meanwhile, a hole for mounting and dismounting is arranged in the center of the large shaft section of the positioning stepped shaft 6, and threads are arranged in the hole. After the flywheel body 3 of 4 free ends of bent axle was installed successfully, should fix a position step shaft 6 and can select to stay on the ring platform of bent axle 4, guarantee the assembly precision of flywheel body 3 and bent axle 4 persistently, also can use the dismantlement frock through connecting the epaxial hole in 6 big of location step shaft, take out this location step shaft 6 from the ring platform, through establishing instruments such as screwed pole, match with the hole on the location step shaft 6, pull out it from the ring platform.
The diamond friction plate 5 which is aligned with the threaded hole at the end part of the crankshaft 4 is sleeved on the circular ring table at the free end of the crankshaft 4, the diameter of the diamond friction plate 5 is the same as the shaft size of the threaded hole in the crankshaft 4, the friction among the flywheel body 3, the crankshaft 4 and the positioning stepped shaft 6 is reduced, and the service life is prolonged.
The invention adopts the mode that the two ends of the crankshaft 4 of the diesel engine are connected with the flywheel body 3 and then connected with the generator through the flywheel body 3, and solves the problems that the existing design scheme can only generate electricity through one end of the diesel engine, needs to install a generator with larger power, complex structure and high price, has high requirement on installation precision, is difficult to ensure and the like. Meanwhile, a positioning stepped shaft 6 is designed, and the problem of accurate positioning of a flywheel mounted at the free end of a crankshaft of a common diesel engine is solved.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape, principle and the like of the invention are covered by the protection scope of the invention.
Claims (5)
1. The utility model provides a bi-polar power take-off diesel generating set, includes bent axle (4), the screw hole of bent axle (4) flywheel end passes through high strength bolt (1) fixed mounting flywheel body (3), flywheel body (3) deviate from bent axle (4) one side and pass through bolt fixed mounting flywheel ring gear (2), its characterized in that: the free end of bent axle (4) is the same through high strength bolt (1) installation flywheel body (3), axle center department between flywheel body (3) and bent axle (4) is located through location step shaft (6), install on the ring platform of bent axle (4) free end location step shaft (6), flywheel body (3) are deviating from bent axle (4) one side equally through bolt fixed mounting flywheel ring gear (2).
2. The double-end power take-off diesel generator set of claim 1, wherein: and the small shaft section of the positioning stepped shaft (6) is in interference fit with the crankshaft (4), and the interference magnitude is 0.02 mm.
3. The double-end power take-off diesel generator set of claim 1, wherein: the large shaft section of the positioning stepped shaft (6) is in clearance fit with the center hole of the flywheel body (3), so that the flywheel body (3) can rotate around the axis of the flywheel body after being arranged in the large shaft section of the positioning stepped shaft (6).
4. The double-end power take-off diesel generator set of claim 1, wherein: and a diamond friction plate (5) which is matched and aligned with the threaded hole at the end part of the crankshaft (4) is sleeved between the crankshaft (4) and the positioning stepped shaft (6).
5. The double-end power take-off diesel generator set of claim 3, wherein: the center of the large shaft section of the positioning stepped shaft (6) is provided with a hole for mounting and dismounting, and a thread is arranged in the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911171832.9A CN110925084A (en) | 2019-11-26 | 2019-11-26 | Double-end power take-off diesel generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911171832.9A CN110925084A (en) | 2019-11-26 | 2019-11-26 | Double-end power take-off diesel generator set |
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| Publication Number | Publication Date |
|---|---|
| CN110925084A true CN110925084A (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911171832.9A Pending CN110925084A (en) | 2019-11-26 | 2019-11-26 | Double-end power take-off diesel generator set |
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| CN (1) | CN110925084A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201137518Y (en) * | 2008-01-10 | 2008-10-22 | 陈维加 | Opposed type generator |
| CN202756118U (en) * | 2012-07-17 | 2013-02-27 | 无锡动力工程股份有限公司 | Centrifugal seal structure of diesel engine crankshaft |
| CN103204057A (en) * | 2012-01-16 | 2013-07-17 | 神钢建设机械株式会社 | Driving device for hybrid working machine |
| CN203348365U (en) * | 2013-07-09 | 2013-12-18 | 潍柴动力股份有限公司 | Connecting structure of engine and generator |
| CN105697651A (en) * | 2014-11-26 | 2016-06-22 | 哈尔滨工程大学 | Centrifugal balance device of single-cylinder low-speed diesel engine |
| CN205383174U (en) * | 2016-02-25 | 2016-07-13 | 北京福田康明斯发动机有限公司 | Bent axle adaptor, crankshaft flywheel assembly structure of group and engine |
| CN207830459U (en) * | 2017-11-26 | 2018-09-07 | 内江雨田机械制造有限公司 | A kind of bent axle and flywheel connecting structure |
| 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 |
-
2019
- 2019-11-26 CN CN201911171832.9A patent/CN110925084A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201137518Y (en) * | 2008-01-10 | 2008-10-22 | 陈维加 | Opposed type generator |
| CN103204057A (en) * | 2012-01-16 | 2013-07-17 | 神钢建设机械株式会社 | Driving device for hybrid working machine |
| CN202756118U (en) * | 2012-07-17 | 2013-02-27 | 无锡动力工程股份有限公司 | Centrifugal seal structure of diesel engine crankshaft |
| CN203348365U (en) * | 2013-07-09 | 2013-12-18 | 潍柴动力股份有限公司 | Connecting structure of engine and generator |
| CN105697651A (en) * | 2014-11-26 | 2016-06-22 | 哈尔滨工程大学 | Centrifugal balance device of single-cylinder low-speed diesel engine |
| CN205383174U (en) * | 2016-02-25 | 2016-07-13 | 北京福田康明斯发动机有限公司 | Bent axle adaptor, crankshaft flywheel assembly structure of group and engine |
| CN207830459U (en) * | 2017-11-26 | 2018-09-07 | 内江雨田机械制造有限公司 | A kind of bent axle and flywheel connecting structure |
| 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 |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200327 |
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| RJ01 | Rejection of invention patent application after publication |