WO2022174473A1 - 用于重载底盘测功机的电机直驱的转毂 - Google Patents

用于重载底盘测功机的电机直驱的转毂 Download PDF

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Publication number
WO2022174473A1
WO2022174473A1 PCT/CN2021/078599 CN2021078599W WO2022174473A1 WO 2022174473 A1 WO2022174473 A1 WO 2022174473A1 CN 2021078599 W CN2021078599 W CN 2021078599W WO 2022174473 A1 WO2022174473 A1 WO 2022174473A1
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WO
WIPO (PCT)
Prior art keywords
plate
motor
arc
drive
mounting seat
Prior art date
Application number
PCT/CN2021/078599
Other languages
English (en)
French (fr)
Inventor
刘汉光
赵斌
徐伟
黄诚
朱聪聪
Original Assignee
江苏徐工工程机械研究院有限公司
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Application filed by 江苏徐工工程机械研究院有限公司 filed Critical 江苏徐工工程机械研究院有限公司
Priority to US18/276,256 priority Critical patent/US20240125660A1/en
Priority to GB2311703.9A priority patent/GB2618460A/en
Priority to DE112021006297.2T priority patent/DE112021006297T5/de
Publication of WO2022174473A1 publication Critical patent/WO2022174473A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/24—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/16—Rotary-absorption dynamometers, e.g. of brake type
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0095—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring work or mechanical power
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/13—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the tractive or propulsive power of vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D2055/0075—Constructional features of axially engaged brakes
    • F16D2055/0091—Plural actuators arranged side by side on the same side of the rotor

Definitions

  • the invention relates to the technical field of dynamometers, in particular to a rotor hub for direct drive by a motor of a heavy-duty chassis dynamometer.
  • Chassis dynamometer is an indoor bench test equipment used to test the performance of automobiles and engineering vehicles, such as power performance, multi-condition emission index, fuel index, pure electric cruising range, etc.
  • the chassis dynamometer simulates the road surface through the roller, and calculates Road simulation equation, and use the loading device to simulate, to achieve accurate simulation of various working conditions of automobiles and engineering vehicles, it can be used for loading and debugging of automobiles and engineering vehicles, and diagnose the faults of vehicles under load conditions; the chassis dynamometer is easy to use , reliable performance, not affected by external conditions. On the premise of not dismantling the car, it can accurately and quickly detect the performance of each system and component of the car. Chassis dynamometers can be used for both automotive scientific testing and maintenance testing.
  • a Chinese utility model patent (publication number: CN208568127U) disclosed a chassis dynamometer driven by a permanent magnet synchronous motor in 2019, including a base, a main shaft, an encoder, a torque measurer and a rotor, and the main shaft passes through a bearing It is fixedly installed on the base; the rotor is fixed on the main shaft, and the main shaft is provided with resistance by a permanent magnet synchronous motor, and the permanent magnet synchronous motor includes a rotating shaft, a casing, a stator assembly and a rotor assembly; The stator assembly is fixedly installed on the casing to provide a rotating resistance magnetic field for the rotor assembly; the rotor assembly with permanent magnet characteristics is fixedly installed on the rotating shaft and corresponds to the stator assembly; the The torque measuring device is placed between the main shaft and the rotating shaft to measure the rotational torque between the shafts; the encoder is used to measure the rotational speed and the rotating angle of the rotating shaft.
  • the dynamometer can be used for the dyna
  • the purpose of the present invention is to solve the problems existing in the prior art, and to provide a rotor hub for the direct drive of the motor of the heavy-duty chassis dynamometer.
  • a rotating hub used for the direct drive of the motor of a heavy-duty chassis dynamometer including a rotating hub body, the inner circumference of the rotating hub body is provided with a mounting end surface, and the mounting end surface is sleeved with a coaxial line with the rotating hub body
  • the drive shaft is sleeved with a drive assembly, bearing assemblies are respectively provided on both axial sides of the drive assembly, and a pair of the bearing assemblies are installed on the support frame through the motor mounting seat; the drive assembly A section of the assembly and the motor mounting seat close to the mounting end face is sleeved on the inner side of the hub body;
  • the outer circumference of the drive assembly is provided with a number of axial mounting plates, which are located outside the hub body
  • the axial mounting plate is connected with a tension sensor assembly, and the tension sensor assembly is installed on the support frame; the end of the transmission shaft away from the installation end face is also sleeved with an end flange, so Several brake assemblies are arranged on the end
  • the rotating hub has a compact structure, and the positions of each component are reasonably arranged, so that the space inside the rotating hub body can be fully utilized to reduce the axial dimension, and the driving assembly, the braking assembly and the tension sensor assembly are all It is integrated on the rotating hub, so that the rotating hub can be directly used in the dynamometer platform, reducing the settings of additional transmission parts, braking parts and driving parts, and reducing the occupied area and space of the entire dynamometer platform;
  • the dynamometer test can be carried out by installing the support frame of the swivel hub in the dynamometer platform; and the swivel hub can output high power and torque through an integrated and reasonable space layout structure, and can perform heavy-duty tests , each hub is equipped with independent drive components, brake components and tension sensor components, so that each wheel can be tested individually, and it can also be tested in linkage and differential speed, so as to obtain the wheel and chassis in all aspects.
  • the multi-environmental experimental chamber it can simulate the environmental system under different temperatures, different humidity and
  • each drive assembly is arranged inside the rotor hub body through the arrangement of this structure, which can significantly reduce the axial size and shorten the
  • the length of the drive shaft, the entire drive shaft and the hub body can be installed only by the bearing assembly and the motor mounting seat, and supported and fixed by the support frame, the structure is very compact, and the axial dimension can be shortened while ensuring sufficient support ability.
  • the tension sensor assembly is arranged on the outside of the drive assembly, which can not only support the drive assembly, but also directly obtain the force transmitted by the pressure of the rotating hub; the brake assembly can provide braking to control the rotation speed of the transmission shaft Or stop the rotation of the drive shaft and hub.
  • the installation end surface is arranged in the middle of the rotating hub body, and a pair of circumferential reinforcing ribs is further provided on the inner circumference of the rotating hub body near the end, and the pair of circumferential reinforcing ribs
  • the installation end surface is arranged symmetrically in the center; or the installation end surface is arranged at the position near the end of the inner circumference of the hub body, and the inner circumference of the hub body is provided with a symmetrical to the installation end surface at the other end. the circumferential reinforcing rib.
  • the hub body adopting this structure can make reasonable use of the inner space to install other components while taking into account the larger size of the outer circumference. Different from the size, in order to ensure the wheelbase and center distance, the positions of the installation end surfaces in the hub body will be different, so that the external structures of the hubs with different powers are basically the same; the setting of the circumferential reinforcing ribs, The strength and balance performance of the hub body can be further improved.
  • the transmission shaft is a hollow connecting shaft, and an encoder is also connected and installed on the end flange, and the encoder can obtain information such as the rotational speed and rotation angle of the transmission shaft.
  • the middle part of the installation end face is provided with an inner stepped connecting sleeve, the axial dimension of the connecting sleeve is larger than the axial dimension of the installation end face, and the inner sleeve of the connecting sleeve is provided with a first expansion sleeve, The first expansion sleeve is sleeved and expanded to connect the end of the transmission shaft; the installation end surface is also provided with a number of axially penetrating through holes.
  • the middle part of the end flange has a cylinder protruding outward, and the middle part of the end flange is provided with a stepped through hole penetrating the end flange and the cylinder, The stepped through hole is sleeved on the end of the transmission shaft and a second expansion sleeve is arranged between the transmission shaft and the transmission shaft.
  • the bearing assembly includes a main bearing sleeved on the transmission shaft, the main bearing is installed at both axial ends of the motor mounting seat, and bearing end caps are respectively provided on the inner and outer sides, the The bearing end covers are respectively abutted and screwed on the motor mounting seat, and a bearing pressure plate is also arranged between the bearing end covers, the bearing pressure plate is arcuate, and the two ends are respectively screwed on the motor mounting seat.
  • the arrangement of the bearing pressing plate can fix the bearing end cover on the motor mounting seat, reduce the shaking in the axial and circumferential directions, and facilitate installation and disassembly.
  • the support frame is a plate frame structure, including a base plate with mounting screw connections, a pair of parallel side plates are arranged on both sides of the base plate, and a plurality of arc supports are arranged between a pair of the side plates.
  • the motor mounting seat is arranged on the arc-shaped support plate; the outer side of the end of the motor mounting seat close to the end flange is connected with a first mounting plate, and the first mounting plate is mounted on the outer side of the end flange.
  • the brake assembly; the outer side of the side plate is further provided with a second mounting plate, and the tension sensor assembly is mounted on the second mounting plate.
  • the support frame is made by welding plate parts, and the arc-shaped support plate can support and fix the motor mounting seat, so as to support the entire transmission shaft and the rotating hub.
  • These The drive assembly can be supported stably to form a support connection structure of the cantilever, and with the arrangement of the end brake assembly, it can provide rotational support for these rotating hubs while reducing the axial width.
  • the arc-shaped support plates are a pair arranged in parallel, and are respectively a first arc-shaped support plate and a second arc-shaped support plate; the first arc-shaped support plate is arranged and supported on the motor mounting seat.
  • a number of outer support plates are welded between the first arc-shaped support plate and the base plate, and the outer support plates extend to the end face of the motor mounting seat and are connected to the first mounting plate at the upper end , the two sides of the outer support plate are also respectively provided with a number of outer inclined plates, and the outer inclined plates are respectively welded with the end surfaces of the base plate, the first arc-shaped support plate and the motor mounting seat;
  • the second arc-shaped support plate is arranged and supported at the axial middle position of the motor mounting plate, between the second arc-shaped support plate and the base plate, and between the second arc-shaped support plate and the motor
  • a plurality of inner inclined rib plates are respectively arranged between the outer circumferences of the seat; the first arc-shaped support plate is
  • the outer arc-shaped support plate is just flush with the outer end surface of the motor mounting seat, and the inner arc-shaped support plate supports the middle of the motor mounting seat just close to the end of the rotating hub, which can form a support without affecting the rotation.
  • the rotation of the hub; the setting of these diagonal rib plates can improve the connection strength.
  • the positions and sizes of the inner and outer diagonal rib plates are different, and they will play different roles while improving the connection capacity.
  • the side plate is a multi-stage stepped trapezoidal plate, and the upper dimension of the side plate is smaller than the lower dimension of the side plate.
  • Using this shape of the side plate can increase the support area below and reduce the space above. Occupied, can make the connection of the upper parts more compact, the center is located in the plane where the center line of the substrate is located, and the stability is better;
  • the motor mounting seat is a semi-circular groove-shaped structure, and the outer circumference of the motor mounting seat is close to Both sides of the side plate are arranged in a plane structure and are closely abutted to the inner side of the side plate.
  • the outer circumference of the motor mounting seat is provided with a groove near the step of the side plate, and this place can be vacated for connection. and install the tension sensor assembly.
  • the brake assemblies are a pair of symmetrically arranged, including brake bases respectively, brakes are respectively installed on the brake bases, the brakes are caliper brakes, and a pair of calipers of the brakes are arranged on the brake bases.
  • the inner and outer sides of the end flange; the brake base includes a first connecting plate, a pair of second connecting plates and a third connecting plate, the first connecting plate is screwed on the support frame, and a pair of The second connecting plate is arranged between the first connecting plate and the third connecting plate, the third connecting plate and the first connecting plate are arranged at an acute angle, and the third connecting plate is screwed.
  • one end of the third connecting plate close to the clamp is provided with an opening slot for escaping, and the setting of the opening slot does not affect the rotational movement of the end flange. Braking from two symmetrical angles at the same time, the braking effect is better, and this part of the space on the outside is rationally utilized, reducing the space occupation.
  • the tension sensor assembly includes a pull seat, the pull seat is screwed and fixed on the outer circumference of the drive assembly, the pull seat is movably connected with a pull rod nut through a pair of connecting pieces, and the end of the pull rod nut is screwed with a pull rod nut.
  • a screw the end of the screw is screwed with a tension pressure sensor, and the tension pressure sensor is screwed and fixed on the support frame; a pair of the tension sensor components are respectively symmetrically arranged on the outer circumference of the driving component.
  • the drive assembly includes a circumferential casing and a pressure cover at the end, the pressure cover is screwed on both sides of the pressure cover respectively, and the middle part of the pressure cover protrudes outward and is connected to the bearing
  • a number of axial wiring holes and ventilation holes are arranged on the gland; a direct drive motor or a permanent magnet synchronous motor is sleeved inside the casing, which can directly act on and drive the respective transmission shafts to rotate, thereby driving
  • the rotor hub rotates, the stator assembly of the motor can be installed in the casing, and the rotor part of the motor is sleeved and connected to the transmission shaft.
  • a permanent magnet synchronous motor Driven by a permanent magnet synchronous motor, it can provide a large torque output environment, and at the same time, the response speed is fast, the speed is easy to control, and the structure is compact, and can be directly installed on the transmission shaft to drive the transmission shaft to rotate, thereby driving the hub to rotate; the housing
  • the gland is screwed and fixed, and the gland is connected to the motor mounting seat through the bearing assembly, so that both the driving assembly and the transmission shaft can rotate on the motor seat, so
  • the casing does not directly contact the motor mounting seat, and is connected and supported by the tension and pressure sensor assembly connected outside the casing.
  • the rotating hub has a compact structure, and the positions of the various components are reasonably arranged, so that the space inside the rotating hub body can be fully utilized, so as to reduce the axial dimension and reduce the size of the rotating hub.
  • the driving assembly, the braking assembly and the tension sensor assembly are all integrated on the rotating hub, so that the rotating hub can be directly used in the dynamometer platform, reducing the setting of additional transmission parts, braking parts and driving parts, The occupied area and space of the entire dynamometer platform can be reduced; 2.
  • the installation and disassembly of the rotating hub are simple and convenient, and the dynamometer can be carried out only by installing the support frame of the rotating hub in the dynamometer platform.
  • the hub can output high power and torque, and can carry out heavy load test.
  • Each hub is equipped with independent drive components, brake components and tension sensor components.
  • each wheel can be tested individually, as well as linkage test and differential test, so as to obtain the performance and data of the wheel and chassis in all aspects;
  • the tension sensor assembly is arranged on the outside of the driving assembly, which can not only support the driving assembly, but also directly obtain the force transmitted by the pressure of the rotating hub; the braking assembly Braking can be provided to control the rotational speed of the drive shaft or to stop the rotation of the drive shaft and hub.
  • Fig. 1 is the overall structure schematic diagram 1 of the rotating hub used for the motor direct drive of the heavy-duty chassis dynamometer according to the present invention
  • FIG. 2 is a schematic diagram 2 of the overall structure of the rotating hub used for the direct drive of the motor of the heavy-duty chassis dynamometer according to the present invention
  • Fig. 3 is a partial cross-sectional structural schematic diagram of the rotor hub used for the direct drive of the motor of the heavy-duty chassis dynamometer according to the present invention
  • Fig. 4 is the structural schematic diagram of the motor mounting seat of the rotor hub used for the direct drive of the motor of the heavy-duty chassis dynamometer according to the present invention
  • Fig. 5 is the first structural schematic diagram of the support frame of the rotating hub used for the direct drive of the motor of the heavy-duty chassis dynamometer according to the present invention
  • FIG. 6 is a second structural schematic diagram of the support frame of the rotating hub used for the direct drive of the motor of the heavy-duty chassis dynamometer according to the present invention
  • Fig. 7 is the structural schematic diagram of the tension sensor assembly of the rotor hub used for the direct drive of the motor of the heavy-duty chassis dynamometer according to the present invention
  • FIG. 8 is another structural schematic diagram of the motor direct-drive rotor hub used for the heavy-duty chassis dynamometer according to the present invention.
  • FIG. 9 is a schematic diagram of the use state of the rotating hub used for the direct drive of the motor of the heavy-duty chassis dynamometer according to the present invention.
  • Hub body 1. Installation end face; 3. Transmission shaft; 4. Drive assembly; 5. Bearing assembly; 501, Bearing end cover; 502, Bearing pressure plate; 6. Axial mounting plate; Sensor assembly; 701, tension pressure sensor; 702, screw rod; 703, pull rod nut; 704, connecting piece; 705, pull seat; 8, support frame; 801, base plate; 802, side plate; 803, arc support plate; 804 , the first rib; 805, the first support rib; 806, the second rib; 807, the second support rib; 808, the through groove; 9, the end flange; 10, the brake assembly; 1001, Brake base; 1002, brake; 11, motor mounting seat; 1101, groove; 1102, plane structure; 1103, radial through groove; 12, second mounting plate; 13, first mounting plate; 14, circumferential reinforcing rib ; 15, connecting sleeve; 16, the first expansion sleeve; 17, the second expansion sleeve; 18, the dynamometer platform; 1801, the upper cover plate; 19, the frame; 20, the sliding base; 21,
  • a motor direct-drive rotor hub for a heavy-duty chassis dynamometer includes a rotor hub body 1, the inner circumference of the rotor hub body 1 is provided with an installation end surface 2, and the installation
  • the end face 2 is sleeved with a transmission shaft 3 coaxial with the hub body 1, the transmission shaft 3 is sleeved with a drive assembly 4, and the axial sides of the drive assembly 4 are respectively provided with bearing assemblies 5,
  • a pair of the bearing assemblies 5 are both mounted on the support frame 8 through the motor mounting seat 11 ;
  • the driving assembly 4 and the motor mounting seat 11 are both sleeved on the hub body near the mounting end face 2 1;
  • the outer circumference of the drive assembly 4 is provided with a number of axial mounting plates 6, and the axial mounting plate 6 located outside the hub body 1 is connected with a tension sensor assembly 7, the tension sensor
  • the assembly 7 is installed on the support frame 8; the end of the transmission shaft 3 away from the installation end surface 2 is also sleeved with
  • the structure of the rotating hub is compact, and the positions of various components are reasonably arranged, so that the space inside the rotating hub body 1 can be fully utilized to reduce the axial dimension, and the driving assembly 4, the braking assembly 10 and the pulling force can be reduced.
  • the sensor assemblies 7 are all integrated on the rotating hub, so that the rotating hub can be directly used in the dynamometer platform, reducing the installation of additional transmission parts, braking parts and driving parts, and reducing the occupied area and space of the entire dynamometer platform
  • the dynamometer test can be carried out only by installing the support frame 8 of the rotating hub in the dynamometer platform; and the rotating hub can output high power and large torque through an integrated and reasonable space layout structure, Able to carry out heavy-duty test, each hub is equipped with independent drive components, brake components and tension sensor components, so that each wheel can be tested individually, and can also be tested in linkage and differential speed. It can obtain the performance and data of the wheels and chassis; combined with the setting of the multi-environment experimental chamber, it can simulate the environmental system under
  • each drive assembly 4 is arranged inside the swivel hub body 1 through the arrangement of the structure, which can significantly reduce the axial dimension, and The length of the drive shaft 3 is shortened, and the entire drive shaft and the hub body can be installed only by the bearing assembly 5 and the motor mounting seat 11, and supported and fixed by the support frame 8, the structure is very compact, and the axial dimension is shortened. At the same time, it can also ensure sufficient support capacity.
  • the tension sensor assembly 7 is arranged on the outside of the drive assembly 4, which can not only support the drive assembly 4, but also directly obtain the force transmitted by the pressure of the rotating hub; the brake assembly 10 can provide braking to control the transmission The rotational speed of the shaft or stop the rotation of the drive shaft and hub.
  • the installation end surface 2 is arranged at the position of the inner circumference of the hub body 1 close to the end, and the inner circumference of the hub body 1 is provided with the installation at the other end.
  • the circumferential reinforcing ribs 14 are symmetrical on the end face 2 .
  • the hub body 1 adopting this structure can make reasonable use of the inner space to install other components while taking into account the larger outer circumference. Power and size are different, in order to ensure the wheelbase and center distance, the position of the installation end face in the hub body will be different, so that the external structure of the hub with different power is basically the same; the circumferential reinforcement rib 14 The arrangement can further improve the strength and balance performance of the rotating hub body 1 .
  • the transmission shaft 3 is a hollow connecting shaft, and an encoder is also connected and installed on the end flange 9, and the encoder can obtain information such as the rotational speed and rotation angle of the transmission shaft.
  • an inner stepped connecting sleeve 15 is arranged in the middle of the installation end face 2, the axial dimension of the connecting sleeve 15 is larger than the axial dimension of the installation end face 2, and the connecting sleeve 15 is sleeved with a first An expansion sleeve 16 , the first expansion sleeve 16 is sleeved with and expanded to connect the end of the transmission shaft 3 ; the installation end surface 2 is also provided with a number of axially penetrating through holes.
  • the middle part of the end flange 9 has a cylinder that protrudes outward, and the middle part of the end flange 9 is provided with a stepped passage that penetrates the end flange and the cylinder.
  • the stepped through hole is sleeved on the end of the transmission shaft 3 and a second expansion sleeve 17 is arranged between the transmission shaft 3 and the transmission shaft 3 .
  • the bearing assembly 5 includes a main bearing sleeved on the transmission shaft 3, the main bearing is installed on the axial ends of the motor mounting seat 11, and bearing end caps are provided on the inner and outer sides respectively. 501, the bearing end caps 501 are respectively abutted and screwed on the motor mounting base 11, and a bearing pressure plate 502 is also provided between the bearing end caps 501. Connected to the motor mount 11 .
  • the setting of the bearing pressing plate 502 can fix the bearing end cover 501 on the motor mounting seat 11, reduce the shaking in the axial and circumferential directions, and facilitate installation and disassembly.
  • the support frame 8 is a plate frame structure, including a base plate 801 with mounting screw connections, and a pair of parallel side plates 802 are provided on both sides of the base plate 801 .
  • a plurality of arc-shaped support plates 803 are arranged between the side plates 802 , and the motor mounts 11 are arranged on the arc-shaped support plates 803 ; the motor mounts 11 are close to the end of the end flange 9 .
  • the outer side is connected with a first mounting plate 13 on which the brake assembly 10 is mounted; the outer side of the side plate 802 is also provided with a second mounting plate 12 on which the second mounting plate 12 is mounted
  • the tension sensor assembly 7 is connected with a first mounting plate 13 on which the brake assembly 10 is mounted; the outer side of the side plate 802 is also provided with a second mounting plate 12 on which the second mounting plate 12 is mounted The tension sensor assembly 7 .
  • the support frame 8 is made by welding a plate, and the arc-shaped support plate 803 can support and fix the motor mount 11 , so as to support the entire transmission shaft and the rotating hub. Under the support action, these drive assemblies can be supported stably to form a cantilevered support connection structure, and with the arrangement of the end braking assemblies 10 , these hubs can be provided with rotational support while reducing the axial width.
  • the arc-shaped support plates 803 are a pair arranged in parallel, and are respectively a first arc-shaped support plate (outer side) and a second arc-shaped support plate (inner side); the first arc-shaped support plate is set and supported at the end of the motor mounting seat, a number of outer support plates are welded between the first arc-shaped support plate and the base plate, and the outer support plates extend to the end face of the motor mounting seat and are at the end of the motor mounting seat.
  • the upper end is connected to the first mounting plate, and two sides of the outer support plate are respectively provided with a number of outer inclined-stayed plates, which are respectively connected with the base plate, the first arc-shaped support plate and the The end face of the motor mounting seat is welded; the second arc-shaped support plate is arranged and supported at the axial middle position of the motor mounting plate, between the second arc-shaped support plate and the base plate, the second arc-shaped support plate is A plurality of inner inclined rib plates are respectively arranged between the arc-shaped support plate and the outer circumference of the motor mounting seat; the first arc-shaped support plate is also provided with a plurality of through grooves 808 staggered from the outer inclined plate.
  • a radial through groove 1103 is provided on the outer circumference of the motor mount.
  • first ribs 804 are welded at equal intervals between the inner arc support plate 803 and the base plate 801 to improve the inner The connection and support strength of the arc-shaped support plate 803; the inner arc-shaped support plate 803 and the motor mounting base 11 are welded at equal intervals with a first support rib 805, and the first support rib 805 is along the The outer circumference of the motor mount 11 is distributed, which can increase the distance and area of axial support; a second support rib 807 is welded between the outer arc-shaped support plate 803 and the base plate 801, and the second support rib 807 The supporting rib 807 is arranged with a large upper part and a small lower part, which can support the first mounting plate 13; the two sides of the second supporting rib 807 are also provided with second rib plates 806, and the second rib plate 806 is upward Extend and weld with the end face of the motor mount.
  • the side plate 802 is a multi-step ladder-shaped trapezoidal plate, and the upper dimension of the side plate 802 is smaller than the lower dimension of the side plate 802.
  • Using this shape of the side plate 802 can increase the supporting area below, Reducing the space occupied by the upper part can make the connection of the upper parts more compact, and the center is located in the plane where the center line of the base plate 801 is located, and the stability is better;
  • the motor mounting seat 11 Both sides of the outer circumference of the mounting seat 11 close to the side plate 802 are set to a plane structure 1102 and closely abut the inner side of the side plate, and the outer circumference of the motor mounting seat 11 is close to the step on the upper part of the side plate 802 There is a groove 1101 at the place, and this place can be vacated to connect and install the tension sensor assembly.
  • the brake assemblies 10 are a pair of symmetrically arranged, including brake bases 1001 respectively, and brakes 1002 are respectively installed on the brake bases 1001, the brakes 1002 are caliper brakes, one of the brakes 1002
  • the pair of clamps are arranged on the inner and outer sides of the end flange 9;
  • the brake base 1001 includes a first connecting plate, a pair of second connecting plates and a third connecting plate, and the first connecting plate is screwed on the On the support frame, a pair of the second connection plates are arranged between the first connection plate and the third connection plate, and the third connection plate and the first connection plate are arranged at an acute angle,
  • the brake 1002 is screwed on the third connecting plate, and one end of the third connecting plate close to the clamp is provided with an opening slot for giving way, and the setting of the opening slot does not affect the end flange Rotational movement of the disc. Braking from two symmetrical angles at the same time, the braking effect is better, and this part of the space on the outside is
  • the tension sensor assembly 7 includes a pull seat 705 , the pull seat 705 is screwed and fixed on the axial mounting plate 6 on the outer periphery of the drive assembly 4 , and the pull seat 705 is connected by a pair of
  • the connecting piece 704 is movably connected with a pull rod nut 703, the end of the pull rod nut 703 is screwed with a screw rod 702, the end of the screw rod 702 is screwed with a tension pressure sensor 701, and the tension pressure sensor 701 is screwed and fixed on the on the second mounting plate 12 on the support frame 8 ; a pair of the tension sensor assemblies 7 are respectively symmetrically arranged on the outer circumference of the drive assembly 4 . With this arrangement, the tension and pressure sensor 701 can obtain the tension and compression force of the rotating hub.
  • the drive assembly 4 includes a circumferential casing and a pressure cover at the end, the pressure cover is screwed on both sides of the pressure cover respectively, and the middle part of the pressure cover protrudes outward and connects with the pressure cover.
  • Bearing assembly 5 the gland is provided with a number of axial wiring holes and ventilation holes; the interior of the casing is sleeved with a permanent magnet synchronous motor, which can directly act on and drive the respective drive shafts to rotate, thereby driving the hub Rotating, the stator assembly of the motor can be installed in the casing, and the rotor part of the motor is sleeved and connected to the transmission shaft.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • connection structure of the hub body is provided.
  • the mounting end surface 2 is arranged in the middle of the hub body 1 , and a pair of circumferential reinforcing ribs 14 are further provided on the inner circumference of the hub body 1 near the end.
  • the circumferential reinforcing ribs 14 are symmetrically arranged with the installation end face 2 as the center; such arrangement makes the force of the hub body 1 more balanced, and is suitable for the installation of a drive assembly with a slightly smaller size.
  • This embodiment provides the use of the hub in the first embodiment.
  • a dynamometer platform 18 arranged on the ground and a frame 19 located below the dynamometer platform 18 are arranged in the environmental test chamber.
  • the inner side of the frame 19 is along the dynamometer platform 18
  • a fixed base 22 and a sliding base 20 are arranged in sequence in the longitudinal direction of the base.
  • a pair of the rotating hubs are installed above the fixed base 22 through a pair of the support frames 8.
  • the sliding base 20 is provided with a sliding platform 21.
  • a pair of rotating hubs are also mounted on the sliding platform 21 through a pair of the support frames 8 .
  • the heavy-duty truck When working, the heavy-duty truck is directly driven on the hub body 1, and the test work can be started after the alignment and debugging is completed.
  • the drive shaft 3 is driven to rotate by the drive assembly 4, and the hub body 1 is driven to rotate , so as to drive the wheels of the vehicle to rotate, and then collect various data.
  • the setting of the sliding base 20 and the sliding platform 21 can synchronously drive a pair of the rotating hubs arranged coaxially as a whole to slide, so as to adjust the distance with the other pair of the rotating hubs to adapt to different heavy loads Chassis dynamometer testing of trucks, applicable to a wide range.

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Abstract

重载底盘测功机的电机直驱的转毂，包括转毂本体（1），转毂本体（1）的内圆周设有安装端面（2），安装端面（2）上套设有与转毂本体（1）共轴线的传动轴（3），传动轴（3）上套设有驱动组件（4），驱动组件（4）的轴向两侧分别设有轴承组件（5）；驱动组件（4）的外圆周上设有若干轴向安装板（6），位于转毂本体（1）外部的轴向安装板（6）上连接有拉力传感器组件（7），拉力传感器组件（7）安装在支撑架（8）上；传动轴（3）远离安装端面（2）的端部还套设有端部法兰盘（9），端部法兰盘（9）上设置有若干制动组件（10），制动组件（10）也安装在支撑架（8）上。本转毂结构紧凑，各部件位置设置合理，能够充分利用转毂本体（1）内部的空间，能够提供直驱重载的测试要求。

Description

用于重载底盘测功机的电机直驱的转毂 技术领域
本发明涉及到测功机技术领域，具体涉及到用于重载底盘测功机的电机直驱的转毂。
背景技术
底盘测功机是一种用来测试汽车及工程车辆动力性、多工况排放指标、燃油指标、纯电续航里程等性能的室内台架试验设备，底盘测功机通过滚筒模拟路面，计算出道路模拟方程，并用加载装置进行模拟，实现对汽车及工程车辆各工况的准确模拟，它可用于汽车及工程车辆的加载调试，诊断车辆在负载条件下出现的故障；底盘测功机使用方便，性能可靠，不受外界条件的影响。在不解体汽车的前提下，能够准确快速地检测出汽车各个系统、部件的使用性能。底盘测功机既可以用于汽车科学试验，也可以用于维修检测。
如中国实用新型专利(公开号：CN208568127U)在2019年公开了一种永磁同步电机驱动的底盘测功机，包括有底座、主轴、编码器、扭矩测量器及转榖，所述主轴通过轴承固定安装在所述底座上；所述转榖固定在所述主轴上，所述主轴由永磁同步电机提供阻力，所述永磁同步电机包括有转轴、壳体、定子组件及转子组件；所述定子组件固定安装在所述壳体上，为所述转子组件提供旋转的阻力磁场；具有永磁特性的所述转子组件固定安装于所述转轴上，与所述定子组件相对应；所述扭矩测量器置于所述主轴与转轴之间，用于测量轴之间的转动扭矩；所述编码器用于测量所述转轴的转速及转角。该测功机能够用于多环境下车辆的测功试验，但是轴向尺寸较大，占用的轴向空间较多。
发明内容
本发明的目的是针对现有技术存在的问题，提供用于重载底盘测功机的电机直驱的转毂。
为实现上述目的，本发明采用的技术方案是：
用于重载底盘测功机的电机直驱的转毂，包括转毂本体，所述转毂本体的内圆周设有安装端面，所述安装端面上套设有与所述转毂本体共轴线的传动轴，所述传动轴上套设有驱动组件，所述驱动组件的轴向两侧分别设有轴承组件，一对所述轴承组件均通过电机安装座安装在支撑架上；所述驱动组件和所述电机安装座靠近所述安装端面的一截均套设在所述转毂本体的内侧；所述驱动组件的外圆周上设有若干轴向安装板，位于所述转毂本体外部的所述轴向安装板上连接有拉力传感器组件，所述拉力传感器组件安装在所述支撑架上；所述传动轴远离所述安装端面的端部还套设有端部法兰盘，所述端部法兰盘上设置有 若干制动组件，所述制动组件也安装在所述支撑架上。
本转毂结构紧凑，各部件位置设置合理，能够充分利用所述转毂本体内部的空间，以减小轴向的尺寸，将所述驱动组件、所述制动组件以及所述拉力传感器组件均集成在本转毂上，使得本转毂能够直接用于测功平台中，减少额外传动部件、制动部件和驱动部件的设置，能够减小整个测功平台的占用面积和空间；使用时只需将本转毂的所述支撑架安装在测功平台中，即可开展测功试验；而且本转毂通过集成和合理的空间布局结构，能够输出大功率和大扭矩，能够进行重载测试，每个转毂均均具备独立的驱动组件、制动组件和拉力传感器组件，使得测试时能够对每个车轮进行单独测试，也可以联动测试、差速测试，以全方面的获取车轮及底盘的性能和数据；结合多环境实验仓的设置，能够模拟不同温度、不同湿度、不同气压下的环境系统，更加准确的反映待测车辆的性能。
由于对重载卡车底盘测试用的转毂的尺寸较大，通过本结构的设置将每个驱动组件的大部分设置在所述转毂本体的内部，能够明显减小轴向尺寸，而且缩短了传动轴的长度，只需通过轴承组件以及电机安装座就能够安装整个传动轴和转毂本体，并通过所述支撑架支撑固定，结构十分紧凑，在缩短轴向尺寸的同时也能够保证足够的支撑能力。
将所述拉力传感器组件设置在驱动组件的外侧，既能够支撑驱动组件，也能够直接获取转毂受压传递过来的受力；所述制动组件能够提供制动，以控制传动轴的旋转速度或者停止传动轴和转毂的转动。
进一步的，所述安装端面设置在所述转毂本体的中部，所述转毂本体的内圆周上靠近端部的位置还设有一对周向加强筋，一对所述周向加强筋以所述安装端面为中心对称设置；或者所述安装端面设置在所述转毂本体的内圆周靠端部的位置，所述转毂本体的内圆周靠另一端部设有与所述安装端面对称的所述周向加强筋。
采用这个结构的转毂本体在兼顾较大尺寸的外圆周的同时，也能够合理利用内部空间以安装其它部件，由于实际运用中会用到多个转毂，每个转毂的驱动组件的功率和尺寸不同，为了保证轮距和中心距，所述转毂本体内的安装端面设置的位置会有差异，以使不同功率的转毂的外部结构基本相同；所述周向加强筋的设置，能够进一步的提高转毂本体的强度和平衡性能。
优选的，所述传动轴为中空的连接轴，所述端部法兰盘上还连接安装有编码器，所述编码器能够获取所述传动轴的转速、旋转角度等信息。
进一步的，所述安装端面的中部设有内阶梯状的连接套，所述连接套的轴向尺寸大于所述安装端面的轴向尺寸，所述连接套内套设有第一胀紧套，所述第一胀紧套套设有并胀 紧连接所述传动轴的端部；所述安装端面上还设有若干轴向贯穿的通孔。
进一步的，所述端部法兰盘的中部具有向外凸出的柱体，所述端部法兰盘的中部设有贯穿所述端部法兰盘和所述柱体的阶梯通孔，所述阶梯通孔套设在所述传动轴的端部并与所述传动轴之间设置第二胀紧套。
进一步的，所述轴承组件包括套设在所述传动轴上的主轴承，所述主轴承安装在所述电机安装座的轴向两端并分别在内外两侧设有轴承端盖，所述轴承端盖分别抵接并螺接在所述电机安装座上，所述轴承端盖之间还设有轴承压板，所述轴承压板为弓形、两端分别螺接在所述电机安装座上。
所述轴承压板的设置能够将所述轴承端盖固定在所述电机安装座上，减少其轴向和周向的晃动，也便于安装和拆卸。
进一步的，所述支撑架为板件框架结构，包括带有安装螺接的基板，所述基板的两侧设有一对平行的侧板，一对所述侧板之间设有若干弧形支撑板，所述弧形支撑板上设置所述电机安装座；所述电机安装座靠近所述端部法兰盘的端部外侧连接有第一安装板，所述第一安装板上安装所述制动组件；所述侧板的外侧还设有第二安装板，所述第二安装板上安装所述拉力传感器组件。
通过板件焊接的方式制作所述支撑架，所述弧形支撑板能够支撑和固定所述电机安装座，从而支撑起整个传动轴和转毂，在所述拉力传感器的进一步支撑作用下，这些驱动组件能够平稳的支撑起来，形成悬臂的支撑连接结构，配合端部制动组件的设置，能够为这些转毂提供旋转支撑的同时降低了轴向宽度。
进一步的，所述弧形支撑板为平行设置的一对，分别为第一弧形支撑板和第二弧形支撑板；所述第一弧形支撑板设置并支撑在所述电机安装座的端部处，所述第一弧形支撑板与所述基板之间焊接有若干外支撑板，所述外支撑板延伸至所述电机安装座的端面并在上端部连接所述第一安装板，所述外支撑板的两侧还分别设有若干外斜拉板，所述外斜拉板分别与所述基板、所述第一弧形支撑板和所述电机安装座的端面焊接；所述第二弧形支撑板设置并支撑在所述电机安装板的轴向中部位置，所述第二弧形支撑板与所述基板之间、所述第二弧形支撑板与所述电机安装座的外圆周之间分别设有若干内斜肋板；所述第一弧形支撑板上还错开所述外斜拉板设有若干通槽，所述电机安装座的外圆周上设有径向通槽。
外侧的所述弧形支撑板刚好与所述电机安装座的外端面平齐，内侧的弧形支撑板支撑所述电机安装座的中部刚好靠近转毂的端部，能够形成支撑也不影响转毂的旋转；这些斜肋板的设置能够提高连接强度，内外侧的斜肋板设置的位置和大小各不相同，在提高连接 能力的同时也会起到各自不同的作用。
进一步的，所述侧板为多级阶梯状梯形板，所述侧板的上部尺寸小于所述侧板的下部尺寸，采用这种形状的侧板，能够增加下方的支撑面积、减少上方的空间占用，能够让上方的部件连接更加紧凑，将中心落在所述基板中线所在平面内，稳定性更好；所述电机安装座为半圆形槽状结构，所述电机安装座的外圆周靠近所述侧板的两侧均设置为平面结构并紧密抵接所述侧板的内侧，所述电机安装座的外圆周靠近所述侧板的阶梯处设有凹槽，这个地方能够空出来连接和安装所述拉力传感器组件。
进一步的，所述制动组件为对称设置的一对，分别包括制动器底座，所述制动器底座上分别安装有制动器，所述制动器为夹钳式制动器，所述制动器的一对夹钳设置在所述端部法兰盘的内外两侧；所述制动器底座包括第一连接板、一对第二连接板和第三连接板，所述第一连接板螺接在所述支撑架上，一对所述第二连接板设置在所述第一连接板和所述第三连接板之间，所述第三连接板与所述第一连接板之间锐角设置，所述第三连接板上螺接所述制动器，所述第三连接板靠近所述夹钳的一端设有让位开口槽，所述让位开口槽的设置不影响所述端部法兰盘的旋转运动。从两个对称的角度同时进行制动，制动效果更好，而且合理利用了外侧的这一部分空间，减少了空间的占用。
所述拉力传感器组件包括拉座，所述拉座螺接固定在所述驱动组件的外周上，所述拉座通过一对连接片活动连接有拉杆螺母，所述拉杆螺母的端部螺接有螺杆，所述螺杆的端部螺接有拉压力传感器，所述拉压力传感器螺接固定在所述支撑架上；所述驱动组件的外周上分别对称的设置一对所述拉力传感器组件。这样的设置，使得所述拉压传感器能够获取本转毂的拉压受力情况。
进一步的，所述驱动组件包括周向的外壳和端部的压盖，所述压盖分别螺接在所述压盖的两侧，所述压盖的中部向外凸出并连接所述轴承组件，所述压盖上设有若干轴向的走线孔和透气孔；所述外壳的内部套设有直驱电机或者永磁同步电机，能够直接作用和驱动各自的传动轴旋转，从而带动转毂旋转，电机的定子组件能够安装在所述外壳内，电机的转子部分套设并连接传动轴。
采用永磁同步电机进行驱动，能够提供大扭矩的输出环境，同时响应速度快、转速易于控制，而且结构紧凑，能够直接安装在传动轴上驱动传动轴旋转，从而带动转毂旋转；所述外壳和所述压盖是螺接固定的,所述压盖通过所述轴承组件连接在所述电机安装座上,使所述驱动组件及所述传动轴均能够在所述电机座上旋转,所述外壳不直接接触所述电机安装座,通过所述壳体外侧连接的所述拉压传感器组件连接并支撑。
与现有技术相比，本发明的有益效果是：1、本转毂结构紧凑，各部件位置设置合理，能够充分利用所述转毂本体内部的空间，以减小轴向的尺寸，将所述驱动组件、所述制动组件以及所述拉力传感器组件均集成在本转毂上，使得本转毂能够直接用于测功平台中，减少额外传动部件、制动部件和驱动部件的设置，能够减小整个测功平台的占用面积和空间；2、本转毂的安装和拆卸简单方便，使用时只需将本转毂的所述支撑架安装在测功平台中，即可开展测功试验；3、本转毂通过集成和合理的空间布局结构，能够输出大功率和大扭矩，能够进行重载测试，每个转毂均均具备独立的驱动组件、制动组件和拉力传感器组件，使得测试时能够对每个车轮进行单独测试，也可以联动测试、差速测试，以全方面的获取车轮及底盘的性能和数据；4、由于对重载卡车底盘测试用的转毂的尺寸较大，通过本结构的设置将每个驱动组件的大部分设置在所述转毂本体的内部，能够明显减小轴向尺寸，而且缩短了传动轴的长度，结构十分紧凑，在缩短轴向尺寸的同时也能够保证足够的支撑能力；5、将所述拉力传感器组件设置在驱动组件的外侧，既能够支撑驱动组件，也能够直接获取转毂受压传递过来的受力；所述制动组件能够提供制动，以控制传动轴的旋转速度或者停止传动轴和转毂的转动。
附图说明
图1为本发明用于重载底盘测功机的电机直驱的转毂的整体结构示意图一；
图2为本发明用于重载底盘测功机的电机直驱的转毂的整体结构示意图二；
图3为本发明用于重载底盘测功机的电机直驱的转毂的局部剖视结构示意图；
图4为本发明用于重载底盘测功机的电机直驱的转毂的电机安装座的结构示意图；
图5为本发明用于重载底盘测功机的电机直驱的转毂的支撑架的结构示意图一；
图6为本发明用于重载底盘测功机的电机直驱的转毂的支撑架的结构示意图二；
图7为本发明用于重载底盘测功机的电机直驱的转毂的拉力传感器组件的结构示意图；
图8为本发明用于重载底盘测功机的电机直驱的转毂的另一种结构示意图；
图9为本发明用于重载底盘测功机的电机直驱的转毂的使用状态示意图；
图中：1、转毂本体；2、安装端面；3、传动轴；4、驱动组件；5、轴承组件；501、轴承端盖；502、轴承压板；6、轴向安装板；7、拉力传感器组件；701、拉压力传感器；702、螺杆；703、拉杆螺母；704、连接片；705、拉座；8、支撑架；801、基板；802、侧板；803、弧形支撑板；804、第一肋板；805、第一支撑肋板；806、第二肋板；807、第二支撑肋板；808、通槽；9、端部法兰盘；10、制动组件；1001、制动器底座；1002、制动器；11、电机安装座；1101、凹槽；1102、平面结构；1103、径向通槽；12、第二安 装板；13、第一安装板；14、周向加强筋；15、连接套；16、第一胀紧套；17、第二胀紧套；18、测功平台；1801、上盖板；19、机架；20、滑动底座；21、滑动平台；22、固定底座。
具体实施方式
下面将结合本发明中的附图，对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动条件下所获得的所有其它实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“中间”、“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。
实施例一：
如图1～3所示，一种用于重载底盘测功机的电机直驱的转毂，包括转毂本体1，所述转毂本体1的内圆周设有安装端面2，所述安装端面2上套设有与所述转毂本体1共轴线的传动轴3，所述传动轴3上套设有驱动组件4，所述驱动组件4的轴向两侧分别设有轴承组件5，一对所述轴承组件5均通过电机安装座11安装在支撑架8上；所述驱动组件4和所述电机安装座11靠近所述安装端面2的一截均套设在所述转毂本体1的内侧；所述驱动组件4的外圆周上设有若干轴向安装板6，位于所述转毂本体1外部的所述轴向安装板6上连接有拉力传感器组件7，所述拉力传感器组件7安装在所述支撑架8上；所述传动轴3远离所述安装端面2的端部还套设有端部法兰盘9，所述端部法兰盘9上设置有若干制动组件10，所述制动组件10也安装在所述支撑架8上。
本转毂结构紧凑，各部件位置设置合理，能够充分利用所述转毂本体1内部的空间，以减小轴向的尺寸，将所述驱动组件4、所述制动组件10以及所述拉力传感器组件7均集成在本转毂上，使得本转毂能够直接用于测功平台中，减少额外传动部件、制动部件和驱动部件的设置，能够减小整个测功平台的占用面积和空间；使用时只需将本转毂的所述支撑架8安装在测功平台中，即可开展测功试验；而且本转毂通过集成和合理的空间布局结构，能够输出大功率和大扭矩，能够进行重载测试，每个转毂均均具备独立的驱动组件、制动组件和拉力传感器组件，使得测试时能够对每个车轮进行单独测试，也可以联动测试、 差速测试，以全方面的获取车轮及底盘的性能和数据；结合多环境实验仓的设置，能够模拟不同温度、不同湿度、不同气压下的环境系统，更加准确的反映待测车辆的性能。
由于对重载卡车底盘测试用的转毂的尺寸较大，通过本结构的设置将每个驱动组件4的大部分设置在所述转毂本体1的内部，能够明显减小轴向尺寸，而且缩短了传动轴3的长度，只需通过轴承组件5以及电机安装座11就能够安装整个传动轴和转毂本体，并通过所述支撑架8支撑固定，结构十分紧凑，在缩短轴向尺寸的同时也能够保证足够的支撑能力。
将所述拉力传感器组件7设置在驱动组件4的外侧，既能够支撑驱动组件4，也能够直接获取转毂受压传递过来的受力；所述制动组件10能够提供制动，以控制传动轴的旋转速度或者停止传动轴和转毂的转动。
进一步的，如图3所示，所述安装端面2设置在所述转毂本体1的内圆周靠端部的位置，所述转毂本体1的内圆周靠另一端部设有与所述安装端面2对称的所述周向加强筋14。
采用这个结构的转毂本体1在兼顾较大尺寸的外圆周的同时，也能够合理利用内部空间以安装其它部件，由于实际运用中会用到多个转毂，每个转毂的驱动组件的功率和尺寸不同，为了保证轮距和中心距，所述转毂本体内的安装端面设置的位置会有差异，以使不同功率的转毂的外部结构基本相同；所述周向加强筋14的设置，能够进一步的提高转毂本体1的强度和平衡性能。
优选的，所述传动轴3为中空的连接轴，所述端部法兰盘9上还连接安装有编码器，所述编码器能够获取所述传动轴的转速、旋转角度等信息。
进一步的，所述安装端面2的中部设有内阶梯状的连接套15，所述连接套15的轴向尺寸大于所述安装端面2的轴向尺寸，所述连接套15内套设有第一胀紧套16，所述第一胀紧套16套设有并胀紧连接所述传动轴3的端部；所述安装端面2上还设有若干轴向贯穿的通孔。
进一步的，所述端部法兰盘9的中部具有向外凸出的柱体，所述端部法兰盘9的中部设有贯穿所述端部法兰盘和所述柱体的阶梯通孔，所述阶梯通孔套设在所述传动轴3的端部并与所述传动轴3之间设置第二胀紧套17。
进一步的，所述轴承组件5包括套设在所述传动轴3上的主轴承，所述主轴承安装在所述电机安装座11的轴向两端并分别在内外两侧设有轴承端盖501，所述轴承端盖501分别抵接并螺接在所述电机安装座11上，所述轴承端盖501之间还设有轴承压板502，所述轴承压板502为弓形、两端分别螺接在所述电机安装座11上。
所述轴承压板502的设置能够将所述轴承端盖501固定在所述电机安装座11上，减少其轴向和周向的晃动，也便于安装和拆卸。
进一步的，如图4～6所示，所述支撑架8为板件框架结构，包括带有安装螺接的基板801，所述基板801的两侧设有一对平行的侧板802，一对所述侧板802之间设有若干弧形支撑板803，所述弧形支撑板803上设置所述电机安装座11；所述电机安装座11靠近所述端部法兰盘9的端部外侧连接有第一安装板13，所述第一安装板13上安装所述制动组件10；所述侧板802的外侧还设有第二安装板12，所述第二安装板12上安装所述拉力传感器组件7。
通过板件焊接的方式制作所述支撑架8，所述弧形支撑板803能够支撑和固定所述电机安装座11，从而支撑起整个传动轴和转毂，在所述拉力传感器组件7的进一步支撑作用下，这些驱动组件能够平稳的支撑起来，形成悬臂的支撑连接结构，配合端部制动组件10的设置，能够为这些转毂提供旋转支撑的同时降低了轴向宽度。
进一步的，所述弧形支撑板803为平行设置的一对，分别为第一弧形支撑板(外侧的)和第二弧形支撑板(内侧的)；所述第一弧形支撑板设置并支撑在所述电机安装座的端部处，所述第一弧形支撑板与所述基板之间焊接有若干外支撑板，所述外支撑板延伸至所述电机安装座的端面并在上端部连接所述第一安装板，所述外支撑板的两侧还分别设有若干外斜拉板，所述外斜拉板分别与所述基板、所述第一弧形支撑板和所述电机安装座的端面焊接；所述第二弧形支撑板设置并支撑在所述电机安装板的轴向中部位置，所述第二弧形支撑板与所述基板之间、所述第二弧形支撑板与所述电机安装座的外圆周之间分别设有若干内斜肋板；所述第一弧形支撑板上还错开所述外斜拉板设有若干通槽808，所述电机安装座的外圆周上设有径向通槽1103。
这些斜肋板设置的位置不同，作用和效果均不相同；内侧的所述弧形支撑板803与所述基板801之间等间距的焊接有第一肋板804，用以提高内侧的所述弧形支撑板803的连接和支撑强度；内侧的所述弧形支撑板803与所述电机安装座11之间等间距的焊接有第一支撑肋板805，所述第一支撑肋板805沿所述电机安装座11的外圆周分布，能够增加轴向支撑的距离和面积；外侧的所述弧形支撑板803与所述基板801之间焊接有第二支撑肋板807，所述第二支撑肋板807为上大下小的设置，能够支撑所述第一安装板13；所述第二支撑肋板807的两侧还设有第二肋板806，所述第二肋板806向上延伸并与所述电机安装座的端面焊接。
进一步的，所述侧板802为多级阶梯状梯形板，所述侧板802的上部尺寸小于所述侧 板802的下部尺寸，采用这种形状的侧板802，能够增加下方的支撑面积、减少上方的空间占用，能够让上方的部件连接更加紧凑，将中心落在所述基板801中线所在平面内，稳定性更好；所述电机安装座11为半圆形槽状结构，所述电机安装座11的外圆周靠近所述侧板802的两侧均设置为平面结构1102并紧密抵接所述侧板的内侧，所述电机安装座11的外圆周靠近所述侧板802上部的阶梯处设有凹槽1101，这个地方能够空出来连接和安装所述拉力传感器组件。
进一步的，所述制动组件10为对称设置的一对，分别包括制动器底座1001，所述制动器底座1001上分别安装有制动器1002，所述制动器1002为夹钳式制动器，所述制动器1002的一对夹钳设置在所述端部法兰盘9的内外两侧；所述制动器底座1001包括第一连接板、一对第二连接板和第三连接板，所述第一连接板螺接在所述支撑架上，一对所述第二连接板设置在所述第一连接板和所述第三连接板之间，所述第三连接板与所述第一连接板之间锐角设置，所述第三连接板上螺接所述制动器1002，所述第三连接板靠近所述夹钳的一端设有让位开口槽，所述让位开口槽的设置不影响所述端部法兰盘的旋转运动。从两个对称的角度同时进行制动，制动效果更好，而且合理利用了外侧的这一部分空间，减少了空间的占用。
如图7所示，所述拉力传感器组件7包括拉座705，所述拉座705螺接固定在所述驱动组件4的外周上的轴向安装板6上，所述拉座705通过一对连接片704活动连接有拉杆螺母703，所述拉杆螺母703的端部螺接有螺杆702，所述螺杆702的端部螺接有拉压力传感器701，所述拉压力传感器701螺接固定在所述支撑架8上的第二安装板12上；所述驱动组件4的外周上分别对称的设置一对所述拉力传感器组件7。这样的设置，使得所述拉压力传感器701能够获取本转毂的拉压受力情况。
进一步的，所述驱动组件4包括周向的外壳和端部的压盖，所述压盖分别螺接在所述压盖的两侧，所述压盖的中部向外凸出并连接所述轴承组件5，所述压盖上设有若干轴向的走线孔和透气孔；所述外壳的内部套设有永磁同步电机，能够直接作用和驱动各自的传动轴旋转，从而带动转毂旋转，电机的定子组件能够安装在所述外壳内，电机的转子部分套设并连接传动轴。
实施例二：
本实施例与实施例一的区别在于提供了另一种连接结构的转毂本体。
如图8所示，所述安装端面2设置在所述转毂本体1的中部，所述转毂本体1的内圆周上靠近端部的位置还设有一对周向加强筋14，一对所述周向加强筋14以所述安装端面 2为中心对称设置；这样的设置使得所述转毂本体1的受力更加均衡，适合尺寸稍小一点的驱动组件的安装设置。
实施例三：
本实施例提供了实施例一中转毂的使用方式。
如图9所示，在环境试验舱内设有设置于地面的测功平台18，以及位于所述测功平台18下方的机架19，所述机架19的内侧沿所述测功平台18的长度方向依次布置有固定底座22和滑动底座20，所述固定底座22上方通过一对所述支撑架8安装有一对所述转毂，所述滑动底座20上设有滑动平台21，所述滑动平台21上也通过一对所述支撑架8安装有一对转毂。
工作时，重载卡车直接开上所述转毂本体1上，对中调试完成后即可开始测试工作，通过所述驱动组件4驱动所述传动轴3旋转，带动所述转毂本体1旋转，从而带动车辆的车轮旋转，进而对各项数据进行采集。
所述滑动底座20和所述滑动平台21的设置，能够整体同步的带动同轴设置的一对所述转毂滑动，以调节与另一对所述转毂的间距，以适配不同重载卡车的底盘测功测试，适用范围广。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (10)

  1. 用于重载底盘测功机的电机直驱的转毂，包括转毂本体，其特征在于，所述转毂本体的内圆周设有安装端面，所述安装端面上套设有与所述转毂本体共轴线的传动轴，所述传动轴上套设有驱动组件，所述驱动组件的轴向两侧分别设有轴承组件，一对所述轴承组件均通过电机安装座安装在支撑架上；所述驱动组件和所述电机安装座靠近所述安装端面的一截均套设在所述转毂本体的内侧；所述驱动组件的外圆周上设有若干轴向安装板，位于所述转毂本体外部的所述轴向安装板上连接有拉力传感器组件，所述拉力传感器组件安装在所述支撑架上；所述传动轴远离所述安装端面的端部还套设有端部法兰盘，所述端部法兰盘上设置有若干制动组件，所述制动组件也安装在所述支撑架上。
  2. 根据权利要求1所述的用于重载底盘测功机的电机直驱的转毂，其特征在于，所述安装端面设置在所述转毂本体的中部，所述转毂本体的内圆周上靠近端部的位置还设有一对周向加强筋，一对所述周向加强筋以所述安装端面为中心对称设置；或者所述安装端面设置在所述转毂本体的内圆周靠端部的位置，所述转毂本体的内圆周靠另一端部设有与所述安装端面对称的所述周向加强筋。
  3. 根据权利要求1所述的用于重载底盘测功机的电机直驱的转毂，其特征在于，所述安装端面的中部设有内阶梯状的连接套，所述连接套的轴向尺寸大于所述安装端面的轴向尺寸，所述连接套内套设有第一胀紧套，所述第一胀紧套套设有并胀紧连接所述传动轴的端部；所述安装端面上还设有若干轴向贯穿的通孔。
  4. 根据权利要求1所述的用于重载底盘测功机的电机直驱的转毂，其特征在于，所述端部法兰盘的中部具有向外凸出的柱体，所述端部法兰盘的中部设有贯穿所述端部法兰盘和所述柱体的阶梯通孔，所述阶梯通孔套设在所述传动轴的端部并与所述传动轴之间设置第二胀紧套。
  5. 根据权利要求1所述的用于重载底盘测功机的电机直驱的转毂，其特征在于，所述轴承组件包括套设在所述传动轴上的主轴承，所述主轴承安装在所述电机安装座的轴向两端并分别在内外两侧设有轴承端盖，所述轴承端盖分别抵接并螺接在所述电机安装座上，所述轴承端盖之间还设有轴承压板，所述轴承压板为弓形、两端分别螺接在所述电机安装 座上。
  6. 根据权利要求1所述的用于重载底盘测功机的电机直驱的转毂，其特征在于，所述支撑架为板件框架结构，包括带有安装螺接的基板，所述基板的两侧设有一对平行的侧板，一对所述侧板之间设有若干弧形支撑板，所述弧形支撑板上设置所述电机安装座；所述电机安装座靠近所述端部法兰盘的端部外侧连接有第一安装板，所述第一安装板上安装所述制动组件；所述侧板的外侧还设有第二安装板，所述第二安装板上安装所述拉力传感器组件。
  7. 根据权利要求6所述的用于重载底盘测功机的电机直驱的转毂，其特征在于，所述弧形支撑板为平行设置的一对，分别为第一弧形支撑板和第二弧形支撑板；所述第一弧形支撑板设置并支撑在所述电机安装座的端部处，所述第一弧形支撑板与所述基板之间焊接有若干外支撑板，所述外支撑板延伸至所述电机安装座的端面并在上端部连接所述第一安装板，所述外支撑板的两侧还分别设有若干外斜拉板，所述外斜拉板分别与所述基板、所述第一弧形支撑板和所述电机安装座的端面焊接；所述第二弧形支撑板设置并支撑在所述电机安装板的轴向中部位置，所述第二弧形支撑板与所述基板之间、所述第二弧形支撑板与所述电机安装座的外圆周之间分别设有若干内斜肋板；所述第一弧形支撑板上还错开所述外斜拉板设有若干通槽，所述电机安装座的外圆周上设有径向通槽。
  8. 根据权利要求6所述的用于重载底盘测功机的电机直驱的转毂，其特征在于，所述侧板为多级阶梯状梯形板，所述侧板的上部尺寸小于所述侧板的下部尺寸；所述电机安装座为半圆形槽状结构，所述电机安装座的外圆周靠近所述侧板的两侧均设置为平面结构并紧密抵接所述侧板的内侧，所述电机安装座的外圆周靠近所述侧板的阶梯处设有凹槽。
  9. 根据权利要求1或者6任一所述的用于重载底盘测功机的电机直驱的转毂，其特征在于，所述制动组件为对称设置的一对，分别包括制动器底座，所述制动器底座上分别安装有制动器，所述制动器为夹钳式制动器，所述制动器的一对夹钳设置在所述端部法兰盘的内外两侧；所述拉力传感器组件包括拉座，所述拉座螺接固定在所述驱动组件的外周上，所述拉座通过一对连接片活动连接有拉杆螺母，所述拉杆螺母的端部螺接有螺杆，所述螺 杆的端部螺接有拉压力传感器，所述拉压力传感器螺接固定在所述支撑架上；所述驱动组件的外周上分别对称的设置一对所述拉力传感器组件。
  10. 根据权利要求1所述的用于重载底盘测功机的电机直驱的转毂，其特征在于，所述驱动组件包括周向的外壳和端部的压盖，所述压盖分别螺接在所述压盖的两侧，所述压盖的中部向外凸出并连接所述轴承组件，所述压盖上设有若干轴向的走线孔和透气孔；所述外壳的内部套设有直驱电机或者永磁同步电机。
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