WO2024001262A1 - 一种连接装置及动力总成 - Google Patents
一种连接装置及动力总成 Download PDFInfo
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- WO2024001262A1 WO2024001262A1 PCT/CN2023/079015 CN2023079015W WO2024001262A1 WO 2024001262 A1 WO2024001262 A1 WO 2024001262A1 CN 2023079015 W CN2023079015 W CN 2023079015W WO 2024001262 A1 WO2024001262 A1 WO 2024001262A1
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- WIPO (PCT)
- Prior art keywords
- plate
- connecting piece
- input shaft
- hole
- generator input
- Prior art date
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- 230000007704 transition Effects 0.000 claims description 55
- 238000007789 sealing Methods 0.000 claims description 24
- 230000008878 coupling Effects 0.000 claims description 17
- 238000010168 coupling process Methods 0.000 claims description 17
- 238000005859 coupling reaction Methods 0.000 claims description 17
- 230000004308 accommodation Effects 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000011161 development Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/02—Additional mass for increasing inertia, e.g. flywheels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Definitions
- This application relates to the field of automotive power, and in particular to a connecting device and a power assembly.
- new energy vehicles are more and more widely used.
- new energy vehicles using hybrid systems are powered by a powertrain composed of an engine and a generator. Due to the different interfaces of the engine and the generator, a connecting device is required to connect the engine flywheel and the generator input shaft.
- the engine and generator of the existing new energy vehicle powertrain adopt an integrated design.
- the generator flywheel and the generator input shaft pass through the diaphragm.
- the coupling is directly connected, and the generator has a single bearing support structure, which can save axial space to the greatest extent and shorten the size of the entire powertrain.
- the generator input shaft will be connected to engines of different brands, which will cause changes in the interface size of the connecting device, and at the same time, the interface of the generator will also change.
- the existing connection device interfaces are all fixed-specification interfaces. When the engine is replaced, the coupling specifications change and assembly cannot be achieved. Therefore, it is necessary to find a new type of connecting device to meet the demand of being able to connect engines of various specifications.
- this application provides a connection device and a power assembly.
- a connecting device for connecting the engine flywheel and the generator input shaft, the connecting device includes:
- a first connecting piece, the first connecting piece is arranged on the generator input shaft, and the first connecting piece is provided with a first connecting hole;
- the second connecting piece is provided with a first assembly hole, and the second connecting piece is provided with a first assembly hole.
- One side is connected to the engine flywheel, and the other side of the second connecting piece is provided with the first assembly hole;
- a first fastener, the first assembly hole and the first connection hole are connected through the first fastener
- the first connecting piece connects the second connecting pieces of different structures through the first connecting hole, the first assembly hole and the first fastener.
- the first connecting piece is a shaft sleeve, the first connecting piece is sleeved on the generator input shaft, and the first connecting piece is interference-connected with the generator input shaft;
- the first connecting hole is provided on an end surface of the first connecting piece close to the engine flywheel, and there are multiple first connecting holes;
- the second connecting piece is an annular structure, the first assembly hole is provided close to the inner edge of the second connecting piece, and there are multiple first assembly holes;
- the plurality of first connection holes and the plurality of first assembly holes are evenly arranged circumferentially around the axis of the generator input shaft, and the axes of the first connection holes and the first assembly holes are aligned with the axis of the generator input shaft.
- the axes of the generator input shaft are parallel, and the first connecting hole and the first assembly hole are arranged in one-to-one correspondence.
- the second connecting member is a diaphragm coupling or an elastic coupling.
- the generator input shaft is located in the generator housing;
- the connecting device includes a third connecting piece
- the third connecting piece is sleeved on the first connecting piece, one side of the third connecting piece is connected to the generator housing, and the other side of the third connecting piece is connected to the first connecting piece. pieces.
- the third connecting member includes a transition plate and a bearing
- the transition plate includes a first connecting plate extending along the radial direction of the generator input shaft and a second connecting plate extending along the axial direction of the generator input shaft. , the first connecting plate and the second connecting plate are vertical;
- the bearing is sleeved on the first connecting piece, the transition plate is sleeved on the bearing, the inner ring of the bearing and the first connecting piece are interference connected, and the outer ring of the bearing is connected with the first connecting piece.
- the second connecting plate is interference-connected, and the first connecting plate is connected to the generator casing.
- the generator housing includes a first side plate, a second side plate and a peripheral side plate, and both the first side plate and the second side plate are perpendicular to the axis of the generator input shaft, so The first side plate and the second side plate are arranged oppositely, and the first side plate, the second side plate and the peripheral side plate form a circle.
- the accommodation cavity includes a first port located between the first side plate and the generator input shaft;
- the transition plate is provided at the first port, the second connecting plate extends into the accommodation cavity, and the first connecting plate is located on the side of the first side plate away from the engine flywheel, so The outer edge of the transition plate is fixedly connected to the first side plate.
- the transition plate includes a transition plate
- the transition plate extends along the radial direction of the generator input shaft, one side of the transition plate is connected to the first connecting plate, and the other side of the transition plate is connected to the second connecting plate.
- the transition plate is disposed on the side of the first connecting plate close to the engine flywheel, and the outer peripheral wall of the transition plate offsets the generator housing.
- the third connecting member includes a first sealing member
- the transition plate is provided with a first flange, one end of the first flange is connected to the second connecting plate, the first flange is circumferentially arranged along the axis of the generator input shaft, and the third flange is A flange extends radially along the generator input shaft in a direction close to the first connecting piece;
- the first rib is disposed on the side of the second connecting plate away from the engine flywheel, the first sealing member is sleeved on the first connecting member, and the first sealing member is disposed on the between the first connecting piece and the first rib.
- the third connecting member includes a second sealing member and an end cap
- the end cap and the first rib are arranged oppositely, one side of the end cap is connected to the transition plate, and the other side of the end cap is sleeved on the first connecting piece;
- the second sealing member is disposed between the end cap and the first connecting member, and the second sealing member and the first sealing member are disposed oppositely.
- a power assembly is provided with a connecting device as described above.
- the first connecting hole on the first connecting piece and the first assembly hole on the second connecting piece are all universal screw hole structures, which are easy to process.
- the first fastener is a common bolt structure. Through the first connecting hole The first assembly hole and the first fastener enable the generator input shaft to connect to engines of different specifications, thereby improving the versatility of the connection device and improving the assembly efficiency of the automobile assembly.
- Figure 1 is a schematic diagram of a connection structure between the engine flywheel and the generator casing of this application;
- Figure 2 is a schematic cross-sectional view of the connection structure shown in Figure 1 of the present application;
- Figure 3 is a schematic diagram of another connection structure between the engine flywheel and the generator casing of this application;
- Figure 4 is a schematic cross-sectional view of the connection structure shown in Figure 3 of the present application.
- FIG. 5 is a schematic structural diagram of the third connector of this application.
- Figure 6 is an exploded schematic diagram of the connection structure shown in Figure 3 of the present application.
- the reference symbols in the figure are respectively: 100-engine flywheel; 200-generator input shaft; 210-generator housing; 211-first side plate; 2111-Third assembly hole; 212-Second side plate; 213-Peripheral side plate; 310-First connecting piece; 311-First connecting hole; 320-Second connecting piece; 321-First assembly hole; 322- Second assembly hole; 330-third connecting piece; 331-transition plate; 3311-first connecting plate; 3312-second connecting plate; 3313-first rib; 3314-transition plate; 3315-second connecting hole; 3316-third connection hole; 332-first seal; 333-bearing; 334-end cover; 3341-fourth assembly hole; 335-second seal; 340-first fastener; 350-second fastener Fastener; 360-third fastener; 370-fourth fastener.
- orientation nouns involved in the embodiments of the present application are based on the orientation shown in Figure 1.
- the benchmark does not have the meaning of limiting the scope of protection of this application.
- this embodiment introduces a connecting device for connecting the engine flywheel 100 and the generator input shaft 200.
- the connecting device includes: a first connecting piece 310.
- the first connecting piece 310 is disposed on the power generation unit.
- the first connecting member 310 is provided with a first connecting hole 311;
- the second connecting member 320 is provided with a first assembly hole 321.
- One side of the second connecting member 320 is connected to the engine.
- the flywheel 100 is connected, and a first assembly hole 321 is provided on the other side of the second connecting member 320; a first fastener 340, the first assembly hole 321 and the first connection hole 311 are connected through the first fastener 340;
- the connecting piece 310 connects the second connecting piece 320 with different structures through the first connecting hole 311, the first assembly hole 321 and the first fastener 340.
- the engine flywheel 100 and the generator input shaft 200 are usually connected by a direct coupling.
- the direct coupling is sleeved on the generator input shaft 200 and snap-connected with the generator input shaft 200 .
- the direct-connected coupling is matched with the engine and replaced, and the size of the shaft hole of the replaced direct-connected coupling sleeved on the generator input shaft 200 usually changes.
- the poor versatility of direct-connected couplings often leads to low efficiency of generator and engine assembly, complicated connections, and increased costs.
- the first connecting member 310 is disposed on the generator input shaft 200, and the engine flywheel 100 and the first connecting member 310 are connected through the second connecting member 320, ultimately realizing the connection between the engine flywheel 100 and the generator input shaft 200. connections between. Since the first connecting member 310 is provided with a first connecting hole 311 and the second connecting member 320 is provided with a first assembly hole 321, the first connecting hole 311 and the first assembly hole 321 are connected through the first fastener 340. The connection between the engine flywheel 100 and the generator input shaft 200 can be achieved.
- the second connecting member 320 is a diaphragm coupling or an elastic coupling.
- the second connecting member 320 is provided with a shaft hole.
- the first assembly hole 321 is arranged circumferentially around the shaft hole.
- the first connecting hole 311 Match the position of the first assembly hole 321.
- the shaft hole of the second connecting member 320 should be connected to the generator input shaft 200.
- the first assembly hole 321 and the first connecting hole 311 are provided to avoid the connection between the shaft hole of the second connecting member 320 and the generator input shaft 200.
- the first fastener 340 can be used Connect the first connecting piece 310 and the second connecting member 320 to realize the connection between the engine flywheel 100 and the generator input shaft 200 .
- the processing process of the first connecting hole 311 and the first assembly hole 321 is simple and easy to operate, and the first fastener 340 is a bolt, which is easy to obtain.
- the first connection hole 311 on the first connector 310 and the first assembly hole 321 on the second connector 320 are both universal screw hole structures, which are easy to process, and the first fastener 340 is a common bolt structure.
- the generator input shaft 200 can be connected to engines of different specifications through the first connection hole 311, the first assembly hole 321 and the first fastener 340, which improves the versatility of the connection device and improves the assembly efficiency of the automobile assembly.
- the first connector 310 is a sleeve, the first connector 310 is sleeved on the generator input shaft 200, and the first connector 310 is interference-connected with the generator input shaft 200.
- the first connecting hole 311 is provided on the end surface of the first connecting member 310 close to the engine flywheel 100, and there are multiple first connecting holes 311;
- the second connecting member 320 has an annular structure, and the first assembly hole 321 is close to the second
- the inner edge of the connector 320 is provided with a plurality of first assembly holes 321; the plurality of first connection holes 311 and the plurality of first assembly holes 321 are evenly arranged circumferentially around the axis of the generator input shaft 200.
- the axes of the hole 311 and the first assembly hole 321 are both parallel to the axis of the generator input shaft 200 , and the first connection hole 311 and the first assembly hole 321 are arranged in one-to-one correspondence.
- the first assembly hole 321 is a through hole provided on the second connector 320
- the first connection hole 311 is a blind hole provided on the first connector 310
- the first connection hole 311 is a threaded hole.
- the first fastener 340 is a bolt
- the nut of the first fastener 340 is located on the side of the first assembly hole 321 away from the first connection hole 311, and the first fastener 340 penetrates the first assembly hole 321 and the first The connecting hole 311 is screwed.
- the first connecting member 310 is provided with an annular platform, and the annular platform is engaged with the second connecting member 320.
- the arrangement of the annular platform enhances the stability between the first connecting member 310 and the second connecting member 320.
- the processing process of the annular table is simple and can be processed according to the size of the shaft hole of the second connecting member 320.
- the shaft hole of the second connecting member 320 is placed on the annular table.
- the outer edge of the second connecting member 320 is provided with a second assembly hole 322 arranged circumferentially around the axis of the second connecting member 320, and the engine flywheel 100 is provided with a mounting hole that matches the second assembly hole 322.
- the mounting hole is a threaded hole, and the mounting hole is a blind hole.
- the axis of the second assembly hole 322 and the axis of the mounting hole are both parallel to the axis of the engine flywheel 100 .
- the fourth fastener 370 is a bolt, and the nut of the fourth fastener 370 is located in the second assembly hole 322 away from the motor flywheel 100 . On the other side, the fourth fastener 370 penetrates the second assembly hole 322 and is screwed to the installation hole.
- the generator input shaft 200 is located in the generator housing 210; the connection device includes a third connecting piece 330; the third connecting piece 330 is sleeved on the first connecting piece 310, and the third connecting piece 330 is sleeved on the first connecting piece 310.
- One side of the third connecting piece 330 is connected to the generator housing 210, and the other side of the third connecting piece 330 is connected to the first connecting piece 310.
- the third connecting piece 330 is used to carry the generator rotor to prevent the weight of the generator rotor from being exerted on the engine. on the flywheel 100 and the engine crankshaft.
- the engine crankshaft may not be connected to the generator input shaft 200 through a diaphragm coupling.
- a flexible coupling is required. or other strong coupling structures. After replacing the strong coupling, the generator needs to be redesigned and developed into a double-bearing support structure, which will increase development costs and lengthen the development cycle.
- a third connector 330 is provided in this embodiment.
- the third connector 330 changes the generator from a single bearing support structure to a double bearing support structure. Without changing the original generator structure, the original generator is added.
- the rotor's load-bearing capacity reduces development costs, has a short development cycle and is highly versatile.
- the third connecting member 330 includes a transition plate 331 and a bearing 333; the transition plate 331 includes a first connecting plate 3311 and a second connecting plate 3312.
- the first connecting plate 3311 is along the generator input shaft 200.
- the second connecting plate 3312 extends along the axial direction of the generator input shaft 200, the first connecting plate 3311 and the second connecting plate 3312 are vertical;
- the bearing 333 is sleeved on the first connecting piece 310, and the transition plate 331 is sleeved On the bearing 333, the inner ring of the bearing 333 is interference-connected with the first connecting piece 310, the outer ring of the bearing 333 is interference-connected with the second connecting plate 3312, and the first connecting plate 3311 is connected with the generator housing 210.
- the third connector 330 includes a bearing 333.
- the addition of the bearing 333 changes the generator from a single bearing support structure to a double bearing support structure, providing a structural basis for the generator to match engines of different brands and models, and improving the connection device.
- the versatility improves the assembly efficiency of generators and engines.
- the generator housing 210 includes a first side plate 211, a second side plate 212 and a peripheral side plate 213.
- the first side plate 211 and the second side plate 212 are both connected with the generator.
- the axis of the input shaft 200 is vertical, and the first side plate 211 and the second side plate 212 are arranged oppositely.
- the first side plate 211, the second side plate 212 and the peripheral side plate 213 form an accommodation cavity with an opening; the accommodation cavity includes a first side plate 211 and a second side plate 212.
- the first port is located between the first side plate 211 and the generator input shaft 200; the transition plate 331 is provided at the first port, the second connecting plate 3312 extends into the accommodation cavity, and the first connecting plate 3311 is located at the first port.
- the side plate 211 is on the side away from the engine flywheel 100 , and the outer edge of the transition plate 331 is fixedly connected to the first side plate 211 .
- the accommodation cavity of the generator housing 210 has a first port and a second port.
- the first port and the second port are arranged oppositely.
- the first port is arranged on the side of the accommodation cavity close to the engine flywheel 100, and the second port is arranged oppositely.
- the port is provided on the other side of the accommodation cavity away from the engine flywheel 100 .
- the first port is located between the first side plate 211 and the generator input shaft 200, perpendicular to the axis of the generator input shaft 200;
- the second port is located between the second side plate 212 and the generator input shaft 200, and is connected to the generator input shaft 200.
- the axis of shaft 200 is vertical.
- the diameter of the second port is greater than the diameter of the first port
- the maximum diameter of the transition plate 331 is greater than the diameter of the first port and smaller than the diameter of the second port. Therefore, when the transition plate 331 is installed, the transition plate 331 is removed from the second port.
- the port is placed into the generator housing 210, and then the transition plate 331 is moved to the first port along the axis of the generator housing 210.
- the first connecting plate 3311 of the transition plate 331 is connected to the right side of the first side plate 211. The walls touch each other.
- first connection plate 3311 is provided with a second connection hole 3315
- first side plate 211 is provided with a third assembly hole 2111
- second connection holes 3315 and third assembly holes 2111 there are multiple second connection holes 3315 and third assembly holes 2111
- a plurality of second connection holes 3315 are provided.
- the connection hole 3315 and the plurality of third assembly holes 2111 are evenly arranged circumferentially around the axis of the generator input shaft 200.
- the second connection hole 3315 and the third assembly hole 2111 are arranged in one-to-one correspondence; the axis of the second connection hole 3315 and the third assembly hole 2111 are arranged in a one-to-one correspondence.
- the axes of the three assembly holes 2111 are all parallel to the axis of the generator input shaft 200 , and the second connection hole 3315 and the third assembly hole 2111 are connected through the second fastener 350 .
- the second fastener 350 is a bolt
- the second connecting hole 3315 is a threaded hole
- the nut of the second fastener 350 is located on the side of the third assembly hole 2111 close to the motor flywheel, and the second fastener 350 penetrates the third assembly
- the hole 2111 is screwed to the second connection hole 3315.
- the second side plate 212 is provided with mounting holes.
- the mounting holes are arranged circumferentially around the axis of the generator input shaft 200 .
- the mounting holes are connected to the fixed carrier of the generator through bolts.
- the transition plate 331 includes a transition plate 3314; the transition plate 3314 extends along the radial direction of the generator input shaft 200, and one side of the transition plate 3314 is connected to the first connecting plate 3311.
- the transition plate 3314 The other side of 3314 is connected to the second connecting plate 3312.
- the transition plate 3314 is provided on the side of the first connecting plate 3311 close to the engine flywheel 100.
- the outer periphery of the transition plate 3314 The wall and generator housing 210 are offset.
- connection between the transition plate 3314 and the first connecting plate 3311 forms a ladder structure, and the ladder structure is engaged with the first side plate 211 to ensure the stability of the connection between the first side plate 211 and the transition plate 331 .
- the second connecting plate 3312 is connected to the transition plate 3314, and the other side of the second connecting plate 3312 extends into the accommodation cavity, so that the second connecting plate 3312 has a certain direction along the axis extension direction of the generator input shaft 200. Width, the width of the second connecting plate 3312 is greater than the width of the bearing 333, ensuring sufficient contact area between the second connecting plate 3312 and the bearing 333, and ensuring the stability of the connection between the second connecting plate 3312 and the bearing 333.
- the second connecting plate 3312 extends into the accommodating cavity, so that most of the overall structure of the third connecting member 330 is located in the accommodating cavity, and the additional axial dimension occupied by the generator side is very small, so that the generator is transformed from a single bearing support structure.
- the dual-bearing support structure reduces the axial size increase, saves generator development costs, and facilitates the universalization of generators.
- the third connecting member 330 includes a first sealing member 332; a first flange 3313 is provided on the transition plate 331, and one end of the first flange 3313 is connected to the second connecting plate 3312.
- the first rib 3313 is arranged circumferentially along the axis of the generator input shaft 200, and the first rib 3313 extends radially along the generator input shaft 200 in a direction close to the first connecting member 310; the first rib 3313 is provided on the
- the second connecting plate 3312 is on the side away from the engine flywheel 100.
- the first sealing member 332 is sleeved on the first connecting member 310.
- the first sealing member 332 is disposed between the first connecting member 310 and the first rib 3313.
- the first rib 3313 extends in the direction of the generator input shaft 200 and extends to the first connecting member 310 .
- a dynamic seal is formed between the first sealing member 332 and the wall surface of the first connecting member 310 to ensure the sealing performance of the bearing 333 on the side away from the engine flywheel 100 .
- the third connection member 330 includes a second seal 335 and an end cover 334; the end cover 334 and the first flange 3313 are arranged oppositely, and one side of the end cover 334 and the transition plate 331 connection, the other side of the end cap 334 is sleeved on the first connector 310; the second seal 335 is provided between the end cap 334 and the first connector 310, and the second seal 335 and the first seal 332 are opposite to each other. set up.
- the end cover 334 is provided with a fourth assembly hole 3341
- the transition plate 331 is provided with a third connection hole 3316
- a plurality of fourth assembly holes 3341 and a plurality of third connection holes 3316 are evenly arranged circumferentially around the axis of the generator input shaft 200, and the fourth assembly holes 3341 and the third connection holes 3316 are provided in one-to-one correspondence; the fourth assembly holes 3341
- the axis of the fourth assembly hole 3341 and the third connection hole 3316 are both parallel to the axis of the generator input shaft 200 .
- the fourth assembly hole 3341 and the third connection hole 3316 are connected through the third fastener 360 .
- the third fastener 360 is a bolt
- the third connecting hole 3316 is a threaded hole
- the nut of the third fastener 360 is located on the side of the fourth assembly hole 3341 close to the engine flywheel 100, and the third fastener penetrates the The four assembly holes 3341 are screwed to the third connection hole 3316.
- a sealed cavity is formed between the end cover 334 and the first connecting member 310, and the bearing 333 is located in the sealed cavity, thereby enhancing the sealing performance.
- annular protrusion is provided on the side wall of the end cover 334 away from the engine flywheel 100.
- the annular protrusion is engaged with the second connecting plate 3312, ensuring the stability of the connection between the end cover 334 and the transition plate 331, and also ensuring the stability of the end cover 334 and the transition plate 331.
- 334 plays a positioning role when connected to the transition plate 331.
- the first flange 3313 is provided with a first snap ring, and the first seal 332 is disposed in the first snap ring; the end cover 334 is provided with a second snap ring, and the second seal 335 is disposed in the second snap ring. inside the ring.
- the first snap ring and the second snap ring surround the generator input shaft 200 in a circumferential direction.
- the side wall surface of the first flange 3313 close to the first connecting member 331 is recessed along the radial direction of the generator input shaft 200 away from the first connecting member 331 .
- the axial direction of the machine input shaft 200 is recessed in a direction away from the bearing 333.
- a first snap ring is formed, so that the inner edge of the first rib 3313 is stepped.
- the first seal 332 is disposed in the first snap ring, and the first seal 332 and the first snap ring are interference-fitted to prevent the first seal 332 from being displaced along the axis extension direction of the generator input shaft 200 .
- a second snap ring is provided on the inner edge of the end cap 334, and the second snap ring is opposite to the first snap ring.
- the inner edge wall surface of the end cover 334 first extends for a certain distance along the axial direction of the generator input shaft 200 toward the direction of the engine flywheel 100 , and then the extended end extends along the radial direction of the generator input shaft 200 toward the direction toward the first connecting member 310 , forming a second snap ring.
- the second seal 335 is disposed in the second snap ring, and the second seal 335 and the second snap ring are interference-fitted to prevent the second seal 335 from being displaced along the axis extension direction of the generator input shaft 200 .
- the first sealing member 332 and the second sealing member 335 do not move relative to the first connecting member 310, and the first connecting member 310 drives the bearing 333 to rotate.
- both the first sealing member 332 and the second sealing member 335 are oil seals. 332, a dynamic seal is formed between the second sealing member 335 and the first connecting member 310.
- This embodiment also introduces a power assembly, which is provided with a connecting device as described above.
- the connecting device is used to connect the engine flywheel 100 and the generator input shaft 200 in the powertrain.
- the versatility of the connecting device is improved, making the matching of the engine and the generator in the powertrain more efficient and convenient.
- connection device in this embodiment can be applied to the power generation powertrain of new energy vehicles, emergency generator sets, ship generator sets, rail vehicle generator sets, etc.
- the protection scope of this embodiment is not limited to automobiles. That is, the connection device of this embodiment can be applied to any combination of a fuel or gas engine and a generator as a powertrain.
- first and second are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
- plurality refers to two or more than two, unless expressly limited otherwise.
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Abstract
本申请涉及汽车动力领域，公开了一种连接装置及动力总成，连接装置用于连接发动机飞轮与发电机输入轴，所述连接装置包括：第一连接件，设置在所述发电机输入轴上，所述第一连接件上设有第一连接孔；第二连接件，所述第二连接件的一侧与所述发动机飞轮连接，所述第二连接件的另一侧设有第一装配孔；第一紧固件，所述第一装配孔与所述第一连接孔通过所述第一紧固件连接；所述第一连接件通过所述第一连接孔、所述第一装配孔和所述第一紧固件连接不同结构的所述第二连接件。本申请中第一连接孔、第一装配孔为螺钉孔，第一紧固件为螺栓，通过第一连接孔、第一装配孔和第一紧固件可以使发电机输入轴连接不同规格的发动机，提高了连接装置的通用性。
Description
相关申请的交叉引用
本申请要求于2022年06月29日提交的申请号为202210748042.8，发明名称为“一种连接装置及动力总成”的中国专利申请的优先权，其通过引用方式全部并入本文。
本申请涉及汽车动力领域，特别涉及一种连接装置及动力总成。
目前，新能源汽车应用越来越广泛，其中，应用混动系统的新能源汽车动力来源于发动机和发电机组成的动力总成。由于发动机和发电机接口不同，需要连接装置连接发动机飞轮和发电机输入轴，现有新能源汽车动力总成的发动机与发电机采取集成化设计，发电机的飞轮与发电机输入轴通过膜片联轴器直连，发电机为单轴承支撑结构，可以最大限度的节省轴向空间，缩短整个动力总成的尺寸。但是，根据不同的客户需求，发电机输入轴会连接不同品牌的发动机，这会引起连接装置的接口尺寸变化，同时发电机的接口也会改变。而现有的连接装置接口均为固定规格的接口，当更换发动机时，联轴器的规格发生变化后便无法实现装配。因此，需要寻找一种新型的连接装置，以满足能够连接多种规格的发动机的需求。
发明内容
鉴于此，本申请提供一种连接装置及动力总成。
具体而言，包括以下的技术方案：
一种连接装置，用于连接发动机飞轮与发电机输入轴，所述连接装置包括：
第一连接件，所述第一连接件设置在所述发电机输入轴上，所述第一连接件上设有第一连接孔；
第二连接件，所述第二连接件上设有第一装配孔，所述第二连接件的
一侧与所述发动机飞轮连接，所述第二连接件的另一侧设有所述第一装配孔；
第一紧固件，所述第一装配孔与所述第一连接孔通过所述第一紧固件连接；
所述第一连接件通过所述第一连接孔、所述第一装配孔和所述第一紧固件连接不同结构的所述第二连接件。
优选的，所述第一连接件为轴套，所述第一连接件套设在所述发电机输入轴上，所述第一连接件与所述发电机输入轴过盈连接；
所述第一连接孔设置在所述第一连接件靠近所述发动机飞轮的一侧端面上，所述第一连接孔设置有多个；
所述第二连接件为环形结构，所述第一装配孔靠近所述第二连接件的内缘设置，所述第一装配孔设置有多个；
多个所述第一连接孔和多个所述第一装配孔均绕所述发电机输入轴的轴线周向均匀布置，所述第一连接孔和所述第一装配孔的轴线均与所述发电机输入轴的轴线平行，所述第一连接孔和所述第一装配孔一一对应设置。
优选的，所述第二连接件为膜片联轴器或弹性联轴器。
优选的，所述发电机输入轴位于发电机壳体内；
所述连接装置包括第三连接件；
所述第三连接件套设在所述第一连接件上，所述第三连接件的一侧连接所述发电机壳体，所述第三连接件的另一侧连接所述第一连接件。
优选的，所述第三连接件包括过渡盘和轴承；
所述过渡盘包括第一连接板和第二连接板，所述第一连接板沿所述发电机输入轴的径向延伸，所述第二连接板沿所述发电机输入轴的轴向延伸，所述第一连接板和所述第二连接板垂直；
所述轴承套设在所述第一连接件上，所述过渡盘套设在所述轴承上，所述轴承的内圈和所述第一连接件过盈连接，所述轴承的外圈和所述第二连接板过盈连接，所述第一连接板与所述发电机壳体连接。
优选的，所述发电机壳体包括第一侧板、第二侧板和周侧板，所述第一侧板和所述第二侧板均与所述发电机输入轴的轴线垂直，所述第一侧板和所述第二侧板相对设置，所述第一侧板、第二侧板和所述周侧板围成一
具有开口的容纳腔；
所述容纳腔包括第一端口，所述第一端口位于所述第一侧板和所述发电机输入轴之间；
所述过渡盘设置在所述第一端口处，所述第二连接板向所述容纳腔内延伸，所述第一连接板位于所述第一侧板远离所述发动机飞轮的一侧，所述过渡盘的外缘和所述第一侧板固定连接。
优选的，所述过渡盘包括过渡板；
所述过渡板沿所述发电机输入轴的径向延伸，所述过渡板的一侧和所述第一连接板连接，所述过渡板的另一侧和所述第二连接板连接，所述过渡板设置在所述第一连接板靠近所述发动机飞轮的一侧，所述过渡板的外周壁和所述发电机壳体相抵。
优选的，所述第三连接件包括第一密封件；
所述过渡盘上设有第一挡边，所述第一挡边的一端和所述第二连接板连接，所述第一挡边沿所述发电机输入轴的轴线周向布置，所述第一挡边沿所述发电机输入轴径向向靠近所述第一连接件的方向延伸；
所述第一挡边设置在所述第二连接板远离所述发动机飞轮的一侧，所述第一密封件套设在所述第一连接件上，所述第一密封件设置在所述第一连接件和所述第一挡边之间。
优选的，所述第三连接件包括第二密封件和端盖；
所述端盖和所述第一挡边相对设置，所述端盖的一侧和所述过渡盘连接，所述端盖的另一侧套设在所述第一连接件上；
所述第二密封件设置在所述端盖和所述第一连接件之间，所述第二密封件和所述第一密封件相对设置。
一种动力总成，其上设置有如上所述的一种连接装置。
本申请实施例提供的技术方案的有益效果至少包括：
本申请中第一连接件上的第一连接孔，第二连接件上的第一装配孔均为通用的螺钉孔结构，加工简单，第一紧固件为常见螺栓结构，通过第一连接孔、第一装配孔和第一紧固件可以使发电机输入轴连接不同规格的发动机，提高了连接装置的通用性，提高了汽车总成的装配效率。
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请发动机飞轮和发电机壳体的一种连接结构示意图；
图2为本申请图1所示连接结构的剖面示意图；
图3为本申请发动机飞轮和发电机壳体的另一种连接结构示意图；
图4为本申请图3所示连接结构的剖面示意图；
图5为本申请第三连接件结构示意图；
图6为本申请图3所示连接结构的爆炸示意图。
图中的附图标记分别表示为：
100-发动机飞轮；200-发电机输入轴；210-发电机壳体；211-第一侧板；
2111-第三装配孔；212-第二侧板；213-周侧板；310-第一连接件；311-第一连接孔；320-第二连接件；321-第一装配孔；322-第二装配孔；330-第三连接件；331-过渡盘；3311-第一连接板；3312-第二连接板；3313-第一挡边；3314-过渡板；3315-第二连接孔；3316-第三连接孔；332-第一密封件；333-轴承；334-端盖；3341-第四装配孔；335-第二密封件；340-第一紧固件；350-第二紧固件；360-第三紧固件；370-第四紧固件。
100-发动机飞轮；200-发电机输入轴；210-发电机壳体；211-第一侧板；
2111-第三装配孔；212-第二侧板；213-周侧板；310-第一连接件；311-第一连接孔；320-第二连接件；321-第一装配孔；322-第二装配孔；330-第三连接件；331-过渡盘；3311-第一连接板；3312-第二连接板；3313-第一挡边；3314-过渡板；3315-第二连接孔；3316-第三连接孔；332-第一密封件；333-轴承；334-端盖；3341-第四装配孔；335-第二密封件；340-第一紧固件；350-第二紧固件；360-第三紧固件；370-第四紧固件。
通过上述附图，已示出本申请明确的实施例，后文中将有更详细的描述。这些附图和文字描述并不是为了通过任何方式限制本申请构思的范围，而是通过参考特定实施例为本领域技术人员说明本申请的概念。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在对本申请实施方式作进一步地详细描述之前，本申请实施例中所涉及的方位名词，如“上部”、“下部”、“侧部”，以图1中所示方位为
基准，并不具有限定本申请保护范围的意义。
为使本申请的技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
如图1至图6所示，本实施例介绍了一种连接装置，用于连接发动机飞轮100与发电机输入轴200，连接装置包括：第一连接件310，第一连接件310设置在发电机输入轴200上，第一连接件310上设有第一连接孔311；第二连接件320，第二连接件320上设有第一装配孔321，第二连接件320的一侧与发动机飞轮100连接，第二连接件320的另一侧设有第一装配孔321；第一紧固件340，第一装配孔321与第一连接孔311通过第一紧固件340连接；第一连接件310通过第一连接孔311、第一装配孔321和第一紧固件340连接不同结构的第二连接件320。
进一步，发动机飞轮100和发电机输入轴200之间通常采用直连式联轴器连接，直连式联轴器套设在发电机输入轴200上，与发电机输入轴200卡接。当更换不同品牌、型号、规格的发动机时，直连式联轴器与发动机进行配套更换，而更换后的直连式联轴器套设在发电机输入轴200的轴孔尺寸通常发生变化。直连式联轴器的通用性差，往往导致发电机和发动机装配的效率低，连接复杂，成本增加。
进一步，本实施例中，第一连接件310设置在发电机输入轴200上，通过第二连接件320连接发动机飞轮100和第一连接件310，最终实现发动机飞轮100和发电机输入轴200之间的连接。由于第一连接件310上设有第一连接孔311，第二连接件320上设有第一装配孔321，将第一连接孔311和第一装配孔321通过第一紧固件340连接即可实现发动机飞轮100和发电机输入轴200之间的连接。
进一步，本实施例中第二连接件320为膜片联轴器或弹性联轴器，第二连接件320设有轴孔，第一装配孔321绕轴孔周向布置，第一连接孔311和第一装配孔321的位置相匹配。常规设置中应将第二连接件320的轴孔与发电机输入轴200连接，本实施例中通过设置第一装配孔321和第一连接孔311避免了第二连接件320的轴孔与发电机输入轴200的直连，无论第二连接件320的轴孔是否与发电机输入轴200匹配，只要第一连接孔311和第一装配孔321相匹配，即可通过第一紧固件340连接第一连接件310
和第二连接件320后实现发动机飞轮100和发电机输入轴200之间的连接。
进一步，本实施例中第一连接孔311和第一装配孔321的加工过程简单，容易操作，第一紧固件340为螺栓，容易获得。
本实施例中第一连接件310上的第一连接孔311，第二连接件320上的第一装配孔321均为通用的螺钉孔结构，加工简单，第一紧固件340为常见螺栓结构，通过第一连接孔311、第一装配孔321和第一紧固件340可以使发电机输入轴200连接不同规格的发动机，提高了连接装置的通用性，提高了汽车总成的装配效率。
优选的，结合图2、图4和图5，第一连接件310为轴套，第一连接件套设在发电机输入轴200上，第一连接件310与发电机输入轴200过盈连接；第一连接孔311设置在第一连接件310靠近发动机飞轮100的一侧端面上，第一连接孔311设置有多个；第二连接件320为环形结构，第一装配孔321靠近第二连接件320的内缘设置，第一装配孔321设置有多个；多个第一连接孔311和多个第一装配孔321均绕发电机输入轴200的轴线周向均匀布置，第一连接孔311和第一装配孔321的轴线均与发电机输入轴200的轴线平行，第一连接孔311和第一装配孔321一一对应设置。
进一步，本实施例中第一装配孔321为设置在第二连接件320上的通孔，第一连接孔311为设置在第一连接件310上的盲孔，第一连接孔311为螺纹孔，第一紧固件340为螺栓，第一紧固件340的螺帽位于第一装配孔321远离第一连接孔311的一侧，第一紧固件340贯穿第一装配孔321与第一连接孔311螺接。
进一步，本实施例中第一连接件310上设有环形台，环形台与第二连接件320卡接，环形台的设置增强了第一连接件310和第二连接件320之间的稳定性。环形台的加工过程简单，可以根据第二连接件320的轴孔尺寸进行加工，第二连接件320的轴孔套在环形台上。
进一步，本实施例中第二连接件320的外缘上设有绕第二连接件320轴线周向设置的第二装配孔322，发动机飞轮100上设有与第二装配孔322相匹配的安装孔，安装孔为螺纹孔，安装孔为盲孔。第二装配孔322的轴线和安装孔的轴线均与发动机飞轮100的轴线平行。第四紧固件370为螺栓，第四紧固件370的螺帽位于第二装配孔322远离电动机飞轮100的一
侧，第四紧固件370贯穿第二装配孔322与安装孔螺接。
如图2、图4和图5所示，发电机输入轴200位于发电机壳体210内；连接装置包括第三连接件330；第三连接件330套设在第一连接件310上，第三连接件330的一侧连接发电机壳体210，第三连接件330的另一侧连接第一连接件310，第三连接件330用于承载发电机转子，避免发电机转子重量施加到发动机飞轮100和发动机曲轴上。
进一步，由于发电机转子的质量大，转动惯量大，当更换其它品牌、其它型式的发动机时，发动机曲轴可能无法与发电机输入轴200通过膜片联轴器连接，此时需要使用弹性联轴器或者其它强度大的联轴器结构。更换强度大的联轴器后发电机需要重新设计开发成双轴承支撑结构，这会增加开发成本，开发周期加长。
进一步，本实施例中设置了第三连接件330，第三连接件330将发电机由单轴承支撑结构变为双轴承支撑结构，在未更改原发电机结构的前提下，增加了原发电机转子的承载能力，降低了开发成本，开发周期短，且通用性强。
如图4和图6所示，第三连接件330包括过渡盘331和轴承333；过渡盘331包括第一连接板3311和第二连接板3312，第一连接板3311沿发电机输入轴200的径向延伸，第二连接板3312沿发电机输入轴200的轴向延伸，第一连接板3311和第二连接板3312垂直；轴承333套设在第一连接件310上，过渡盘331套设在轴承333上，轴承333的内圈和第一连接件310过盈连接，轴承333的外圈和第二连接板3312过盈连接，第一连接板3311与发电机壳体210连接。
进一步，第三连接件330中包括轴承333，轴承333的增加将发电机由单轴承支撑结构变为双轴承支撑结构，为发电机匹配不同品牌、型号的发动机提供了结构基础，提高了连接装置的通用性，提高了发电机和发动机的装配效率。
优选的，如图4至图6所示，发电机壳体210包括第一侧板211、第二侧板212和周侧板213，第一侧板211和第二侧板212均与发电机输入轴200的轴线垂直，第一侧板211和第二侧板212相对设置，第一侧板211、第二侧板212和周侧板213围成一具有开口的容纳腔；容纳腔包括第
一端口，第一端口位于第一侧板211和发电机输入轴200之间；过渡盘331设置在第一端口处，第二连接板3312向容纳腔内延伸，第一连接板3311位于第一侧板211远离发动机飞轮100的一侧，过渡盘331的外缘和第一侧板211固定连接。
进一步，本实施例中发电机壳体210的容纳腔具有第一端口和第二端口，第一端口和第二端口相对设置，第一端口设置在容纳腔靠近发动机飞轮100的一侧，第二端口设置在容纳腔远离发动机飞轮100的另一侧。第一端口位于第一侧板211和发电机输入轴200之间，与发电机输入轴200的轴线垂直；第二端口位于第二侧板212和发电机输入轴200之间，与发电机输入轴200的轴线垂直。
进一步，第二端口的直径大于第一端口的直径，过渡盘331的最大直径大于第一端口的直径且小于第二端口的直径，因此，当安装过渡盘331时，将过渡盘331从第二端口处放入发电机壳体210内，然后将过渡盘331沿发电机壳体210的轴线再移动到第一端口处，过渡盘331的第一连接板3311与第一侧板211的右侧壁面相抵。
进一步，第一连接板3311上设有第二连接孔3315，第一侧板211上设有第三装配孔2111，第二连接孔3315和第三装配孔2111均设置多个，多个第二连接孔3315和多个第三装配孔2111均绕发电机输入轴200的轴线周向均匀布置，第二连接孔3315和第三装配孔2111一一对应设置；第二连接孔3315的轴线和第三装配孔2111的轴线均与发电机输入轴200的轴线平行，第二连接孔3315和第三装配孔2111通过第二紧固件350连接。第二紧固件350为螺栓，第二连接孔3315为螺纹孔，第二紧固件350的螺帽位于第三装配孔2111靠近电动机飞轮的一侧，第二紧固件350贯穿第三装配孔2111与第二连接孔3315螺接。
进一步，如图2所示，第二侧板212上设有装配孔，装配孔绕发电机输入轴200的轴线周向布置，装配孔和发电机的固定载体通过螺栓连接。
优选的，如图4和图5所示，过渡盘331包括过渡板3314；过渡板3314沿发电机输入轴200的径向延伸，过渡板3314的一侧和第一连接板3311连接，过渡板3314的另一侧和第二连接板3312连接，过渡板3314设置在第一连接板3311靠近发动机飞轮100的一侧，过渡板3314的外周
壁和发电机壳体210相抵。
进一步，过渡板3314和第一连接板3311的连接处形成阶梯结构，阶梯结构与第一侧板211卡接，保证了第一侧板211和过渡盘331之间连接的稳定性。
进一步，第二连接板3312的一侧和过渡板3314连接，第二连接板3312的另一侧向容纳腔内延伸，使第二连接板3312沿发电机输入轴200的轴线延伸方向具有一定的宽度，第二连接板3312的宽度大于轴承333的宽度，保证了第二连接板3312与轴承333之间具有充足的接触面积，保证了第二连接板3312和轴承333之间连接的稳定性。
进一步，第二连接板3312向容纳腔内延伸，使得第三连接件330的整体结构大部分位于容纳腔内，额外占据发电机侧的轴向尺寸很小，使得发电机由单轴承支撑结构变为双轴承支撑结构后轴向尺寸增加小，节约发电机开发成本，便于发电机通用化。
优选的，如图4至图6所示，第三连接件330包括第一密封件332；过渡盘331上设有第一挡边3313，第一挡边3313的一端和第二连接板3312连接，第一挡边3313沿发电机输入轴200的轴线周向布置，第一挡边3313沿发电机输入轴200径向向靠近第一连接件310的方向延伸；第一挡边3313设置在第二连接板3312远离发动机飞轮100的一侧，第一密封件332套设在第一连接件310上，第一密封件332设置在第一连接件310和第一挡边3313之间。
进一步，本实施例中第一挡边3313向发电机输入轴200的方向延伸，延伸至第一连接件310处。第一密封件332与第一连接件310的壁面之间形成动密封，保证了轴承333远离发动机飞轮100一侧的密封性。
优选的，如图4至图6所示，第三连接件330包括第二密封件335和端盖334；端盖334和第一挡边3313相对设置，端盖334的一侧和过渡盘331连接，端盖334的另一侧套设在第一连接件310上；第二密封件335设置在端盖334和第一连接件310之间，第二密封件335和第一密封件332相对设置。
进一步，本实施例中端盖334上设有第四装配孔3341，过渡盘331上设有第三连接孔3316，第四装配孔3341和第三连接孔3316均设置多个，
多个第四装配孔3341和多个第三连接孔3316均绕发电机输入轴200的轴线周向均匀布置，第四装配孔3341和第三连接孔3316一一对应设置；第四装配孔3341的轴线和第三连接孔3316的轴线均与发电机输入轴200的轴线平行，第四装配孔3341和第三连接孔3316通过第三紧固件360连接。
进一步，第三紧固件360为螺栓，第三连接孔3316为螺纹孔，第三紧固件360的螺帽位于第四装配孔3341靠近发动机飞轮100的一侧，第三紧固件贯穿第四装配孔3341与第三连接孔3316螺接。
进一步，端盖334和过渡盘331连接后与第一连接件310之间形成密封腔，轴承333位于密封腔中，增强了密封性。
进一步，端盖334远离发动机飞轮100的一侧壁面上设有环形凸起，环形凸起与第二连接板3312卡接，保证了端盖334和过渡盘331连接的稳定性，也在端盖334和过渡盘331连接时起到了定位作用。
优选的，第一挡边3313上设有第一卡环，第一密封件332设置在第一卡环内；端盖334上设有第二卡环，第二密封件335设置在第二卡环内。
第一卡环和第二卡环沿发电机输入轴200的周向环绕。第一挡边3313靠近第一连接件331的一侧壁面沿发电机输入轴200的径向向远离第一连接件331的方向凹陷，同时第一挡边3313靠近轴承333的一侧壁面沿发电机输入轴200的轴向向远离轴承333的方向凹陷，此时形成第一卡环，使第一挡边3313的内缘呈阶梯状。第一密封件332设置在第一卡环内，第一密封件332和第一卡环过盈配合，避免了第一密封件332沿发电机输入轴200的轴线延伸方向产生位移。
端盖334的内缘设有第二卡环，第二卡环与第一卡环相对设置。端盖334的内缘壁面首先沿发电机输入轴200的轴向向靠近发动机飞轮100的方向延伸一段距离，然后延伸端沿发电机输入轴200的径向向靠近第一连接件310的方向延伸，形成第二卡环。第二密封件335设置在第二卡环内，第二密封件335和第二卡环过盈配合，避免了第二密封件335沿发电机输入轴200的轴线延伸方向产生位移。发电机工作过程中，第一密封件332和第二密封件335相对第一连接件310不动，第一连接件310带动轴承333转动。
本实施例中第一密封件332和第二密封件335均为油封，第一密封件
332和第二密封件335与第一连接件310之间形成动密封。
本实施例还介绍了一种动力总成，其上设置有如上所述的一种连接装置。连接装置在动力总成中用于连接发动机飞轮100和发电机输入轴200，连接装置的通用性提高，使得动力总成中发动机和发电机的匹配更加高效、便捷。
本实施例中的连接装置可应用于新能源汽车的发电动力总成、应急发电机组，还可应用于船舶用发电机组、轨道车辆发电机组等。此外，本实施例的保护范围不限定为汽车，即燃油或燃气发动机和发电机组合为动力总成的均可应用本实施例的连接装置。
在本申请中，术语“第一”和“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。术语“多个”指两个或两个以上，除非另有明确的限定。
本领域技术人员在考虑说明书及实践这里公开的本申请后，将容易想到本申请的其它实施方案。本申请旨在涵盖本申请的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本申请的一般性原理并包括本申请未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的。
以上仅为本申请的较佳实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。
Claims (10)
- 一种连接装置，用于连接发动机飞轮与发电机输入轴，其中，所述连接装置包括：第一连接件，所述第一连接件设置在所述发电机输入轴上，所述第一连接件上设有第一连接孔；第二连接件，所述第二连接件上设有第一装配孔，所述第二连接件的一侧与所述发动机飞轮连接，所述第二连接件的另一侧设有所述第一装配孔；第一紧固件，所述第一装配孔与所述第一连接孔通过所述第一紧固件连接；所述第一连接件通过所述第一连接孔、所述第一装配孔和所述第一紧固件连接不同结构的所述第二连接件。
- 根据权利要求1所述的一种连接装置，其中，所述第一连接件为轴套，所述第一连接件套设在所述发电机输入轴上，所述第一连接件与所述发电机输入轴过盈连接；所述第一连接孔设置在所述第一连接件靠近所述发动机飞轮的一侧端面上，所述第一连接孔设置有多个；所述第二连接件为环形结构，所述第一装配孔靠近所述第二连接件的内缘设置，所述第一装配孔设置有多个；多个所述第一连接孔和多个所述第一装配孔均绕所述发电机输入轴的轴线周向均匀布置，所述第一连接孔和所述第一装配孔的轴线均与所述发电机输入轴的轴线平行，所述第一连接孔和所述第一装配孔一一对应设置。
- 根据权利要求1所述的一种连接装置，其中，所述第二连接件为膜片联轴器或弹性联轴器。
- 根据权利要求1所述的一种连接装置，其中，所述发电机输入轴位于发电机壳体内；所述连接装置包括第三连接件；所述第三连接件套设在所述第一连接件上，所述第三连接件的一侧连接所述发电机壳体，所述第三连接件的另一侧连接所述第一连接件。
- 根据权利要求4所述的一种连接装置，其中，所述第三连接件包括过渡盘和轴承；所述过渡盘包括第一连接板和第二连接板，所述第一连接板沿所述发电机输入轴的径向延伸，所述第二连接板沿所述发电机输入轴的轴向延伸，所述第一连接板和所述第二连接板垂直；所述轴承套设在所述第一连接件上，所述过渡盘套设在所述轴承上，所述轴承的内圈和所述第一连接件过盈连接，所述轴承的外圈和所述第二连接板过盈连接，所述第一连接板与所述发电机壳体连接。
- 根据权利要求5所述的一种连接装置，其中，所述发电机壳体包括第一侧板、第二侧板和周侧板，所述第一侧板和所述第二侧板均与所述发电机输入轴的轴线垂直，所述第一侧板和所述第二侧板相对设置，所述第一侧板、第二侧板和所述周侧板围成一具有开口的容纳腔；所述容纳腔包括第一端口，所述第一端口位于所述第一侧板和所述发电机输入轴之间；所述过渡盘设置在所述第一端口处，所述第二连接板向所述容纳腔内延伸，所述第一连接板位于所述第一侧板远离所述发动机飞轮的一侧，所述过渡盘的外缘和所述第一侧板固定连接。
- 根据权利要求5所述的一种连接装置，其中，所述过渡盘包括过渡板；所述过渡板沿所述发电机输入轴的径向延伸，所述过渡板的一侧和所述第一连接板连接，所述过渡板的另一侧和所述第二连接板连接，所述过渡板设置在所述第一连接板靠近所述发动机飞轮的一侧，所述过渡板的外周壁和所述发电机壳体相抵。
- 根据权利要求5所述的一种连接装置，其中，所述第三连接件包括第一密封件；所述过渡盘上设有第一挡边，所述第一挡边的一端和所述第二连接板连接，所述第一挡边沿所述发电机输入轴的轴线周向布置，所述第一挡边沿所述发电机输入轴径向向靠近所述第一连接件的方向延伸；所述第一挡边设置在所述第二连接板远离所述发动机飞轮的一侧，所 述第一密封件套设在所述第一连接件上，所述第一密封件设置在所述第一连接件和所述第一挡边之间。
- 根据权利要求8所述的一种连接装置，其中，所述第三连接件包括第二密封件和端盖；所述端盖和所述第一挡边相对设置，所述端盖的一侧和所述过渡盘连接，所述端盖的另一侧套设在所述第一连接件上；所述第二密封件设置在所述端盖和所述第一连接件之间，所述第二密封件和所述第一密封件相对设置。
- 一种动力总成，其上设置有如权利要求1至9任一项所述的一种连接装置。
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| CN110005615A (zh) * | 2019-04-04 | 2019-07-12 | 烟台菱辰能源有限公司 | 空气压缩机转子的驱动齿轮和电机之间的连接装置 |
| CN115051505A (zh) * | 2022-06-29 | 2022-09-13 | 三一重型装备有限公司 | 一种连接装置及动力总成 |
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| US5988931A (en) * | 1997-12-04 | 1999-11-23 | James L. Otwell | Motor and generator coupling device |
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