WO2021208405A1 - 车桥电动润滑泵 - Google Patents

车桥电动润滑泵 Download PDF

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Publication number
WO2021208405A1
WO2021208405A1 PCT/CN2020/125018 CN2020125018W WO2021208405A1 WO 2021208405 A1 WO2021208405 A1 WO 2021208405A1 CN 2020125018 W CN2020125018 W CN 2020125018W WO 2021208405 A1 WO2021208405 A1 WO 2021208405A1
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WIPO (PCT)
Prior art keywords
rotor
pressure
cavity
oil
permanent magnet
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PCT/CN2020/125018
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English (en)
French (fr)
Inventor
孙晓顺
黄萧
李传金
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江苏金湖输油泵有限公司
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Application filed by 江苏金湖输油泵有限公司 filed Critical 江苏金湖输油泵有限公司
Publication of WO2021208405A1 publication Critical patent/WO2021208405A1/zh

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    • 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
    • F16N—LUBRICATING
    • F16N13/00—Lubricating-pumps
    • F16N13/20—Rotary pumps
    • 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
    • F16N—LUBRICATING
    • F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems

Definitions

  • the invention relates to the technical field of vehicle axle lubrication pumps, in particular to an electric vehicle axle lubrication pump.
  • Automobile axles also known as axles, are connected to the frame or load-bearing body through a suspension, and wheels are installed at both ends.
  • the role of the axle is to bear the load of the car and maintain the normal driving of the car on the road.
  • vehicle axles are also divided into four types: steering axle, drive axle, steering drive axle, and support axle.
  • the steering axle and support axle are all driven axles.
  • Most cars use front-rear drive (FR), so the front axle is used as steering.
  • Axle the rear axle is used as a drive axle; while the front axle of a front-drive (FF) car becomes a steering drive axle, and the rear axle acts as a support axle;
  • Lubrication pump is a kind of lubrication equipment, which supplies lubricant to lubrication parts. Mechanical equipment needs regular lubrication. The main way of lubrication in the past was to perform manual lubrication after a certain maintenance period according to the working condition of the equipment. The lubrication pump can let This kind of maintenance is easier; the oil supply lubrication components are well-manufactured, perfect in performance, and of first-class quality. They are essential for maintenance-free centralized lubrication systems. Multifunctional monitoring components can accurately and timely monitor the operating status of each lubrication point and report the machine. At the fault location, the lubrication pump is divided into manual lubrication pump and electric lubrication pump. The automatic lubrication device can effectively reduce equipment failures, reduce energy consumption, increase production efficiency, and extend the service life of the machine.
  • the patent publication number CN202203644U discloses a patent named as a new type of electric lubrication pump, which includes an electric lubrication pump and an oil reservoir.
  • the outer wall of the oil reservoir is connected with a wire pipe.
  • the bottom of the oil container communicates with the electric lubrication pump, and is characterized in that: the oil container is equipped with a liquid level control device, the outer wall of the oil container is equipped with a ball valve, and the electric lubrication pump is equipped with two double plunger pumps. a and two double-plunger pumps b.
  • the double-plunger pump a and double-plunger pump b are movably connected to the eccentric wheel through a linkage mechanism, the eccentric wheel is fixedly connected to the main shaft, and the main shaft is fixedly connected to the speed reduction mechanism ,
  • the speed reduction mechanism is fixedly connected with the motor, the output ends of the double plunger pump a and the double plunger pump b are fixedly connected with a small oil collecting block, and the outlets of the double plunger pump a and the double plunger pump b are installed There is a one-way valve.
  • the utility model has the advantages of high pressure, large flow, long oil replenishment cycle of the oil storage cylinder, and wide range of suitable grease penetration.
  • the defects of current electric lubrication pumps are: the inability to control the amount of lubricating oil pressed in, resulting in low utilization of lubricating oil, and easy to damage the internal components of the pump, affecting the service life of the pump; the loss of transmission during the operation of the pump causes The transmission efficiency is low, which makes the operation efficiency of the motor poor.
  • the purpose of the present invention is to provide an electric lubrication pump for axles.
  • the technical problems to be solved include: through the coordinated use of the set control block, pressure sensor and temperature sensor, the amount of lubricating oil can be effectively adjusted, so that the utilization rate of lubricating oil can reach
  • the purpose of the best effect is to obtain the rotation speed of the permanent magnet rotor, the pressure difference between the first pressure value and the second pressure value, and the temperature difference between the first temperature value and the second temperature value through the control block, and compare them with the preset threshold value And adjust the amount of lubricating oil pressed into, effectively improve the utilization efficiency of lubricating oil, and can increase the service life of the oil suction cavity and the oil pressure cavity, and solve the problem of low lubricating oil utilization in the existing scheme;
  • the invention can effectively improve the operating efficiency of the motor through the coordinated use of the inner rotor and the outer rotor.
  • Both the inner rotor and the outer rotor adopt a permanent magnet structure without excitation.
  • the inner rotor and the outer rotor are embedded in the motor housing. Internally, it can effectively save space and reduce manufacturing costs.
  • the motor is integrated with the pump body and there is no coupling, which reduces transmission loss, effectively improves transmission efficiency, and solves the problem of poor motor operation efficiency in existing solutions. The problem of large transmission efficiency loss.
  • the axle electric lubrication pump includes a lubrication pump body, the outer surface of the lubrication pump body is fixedly mounted with a motor housing, a first pump cover and a second pump cover, and the motor housing is located at the first pump cover and the second pump cover.
  • the brushless motor stator and permanent magnet rotor are both located on one side of the pump shaft.
  • the brushless motor stator is located above the permanent magnet rotor, and the permanent magnet rotor is located At the position between the stator of the brushless motor and the pump shaft, the outer surface of the pump shaft is close to one side with a spacer ring, and the inner surface of the first pump cover is fixedly installed with a second inner cavity.
  • a first connecting column, a second connecting column and a control block are fixedly installed inside the second inner cavity.
  • the control block is located on the outer surface of the first connecting column and the second connecting column, and the first connecting column is located at the second connecting column.
  • a terminal is fixedly connected between the first connecting column and the stator of the brushless motor, and an inner gasket, a second fixed column and an outer gasket are fixedly installed on the outer surface of the terminal.
  • the fixed column is located between the inner gasket and the outer gasket, the inner gasket is located on one side of the outer gasket, the inner gasket is movably connected with the outer gasket through the second fixed column, the first pump A wire is fixedly connected to the outer surface of the cover near the lower end;
  • a screw hole bracket is fixedly installed on the inner surface of the motor housing near the lower end, a fixing bolt is rotatably installed on the inner surface of the second pump cover, and an inner rotor and a connecting shaft are rotatably connected to the inside of the lubrication pump body.
  • the outer rotor, the inner rotor is located above the outer rotor, the connecting shaft is embedded in the inner rotor, and the lubrication pump body is fixedly installed with a first fixing column near the upper position. It is located above the inner rotor, and an axle gearbox is fixedly installed at a position close to one side of the inside of the motor housing.
  • two sets of permanent magnet rotors are rotatably installed on the outer surface of the pump shaft, the two sets of permanent magnet rotors are arranged in a symmetrical arrangement, and the outer surface of the lubrication pump body is provided with oil inlet and outlet holes.
  • a positioning shaft and a rotating column are fixedly installed inside the inner rotor near one side, and the positioning shaft is located above the rotating column.
  • a second pump cover is fixedly connected to a position near one side of the outer surface of the outer rotor, and an oil pressure cavity and an oil suction cavity are arranged inside the second pump cover, and the oil pressure cavity is located on a side of the oil suction cavity.
  • the oil pressure cavity and the oil suction cavity both penetrate through the inside of the second inner cavity, a first pressure sensor is fixedly installed inside the oil pressure cavity, and a first temperature sensor is fixedly installed on the outer surface of the oil pressure cavity A second pressure sensor is fixedly installed inside the oil suction cavity, and a second temperature sensor is fixedly installed on the outer surface of the oil suction cavity.
  • an inner rotor is rotatably connected to the outer surface of the outer rotor near the other side, a left cavity and a right cavity are provided between the inner rotor and the outer rotor, and the left cavity is located on one side of the right cavity. side.
  • a plurality of fixing holes are arranged in the inner part of the outer rotor near the edge, and the plurality of fixing holes are arranged and distributed at equal intervals.
  • the inner rotor is rotatably connected with the outer rotor through a rotating column.
  • the working steps of the axle electric lubrication pump include:
  • Step 1 Energize the lubrication pump body and start it.
  • a magnetic interaction occurs between the permanent magnet rotor and the brushless motor stator.
  • the permanent magnet rotor rotates clockwise, driving the axle gearbox to rotate clockwise, and then driving the inner and outer rotors clockwise.
  • the inner rotor and the outer rotor move eccentrically to obtain the left cavity and the right cavity;
  • Step 2 The inner rotor rotates clockwise, which drives the outer rotor to rotate clockwise.
  • the space formed in the right cavity continues to increase, and the air pressure continues to decrease.
  • the air pressure sucks the lubricating oil into the right cavity and enters the suction cavity.
  • the first pressure sensor Acquiring the first pressure value in the oil suction cavity, and the first temperature sensor acquiring the first temperature value of the oil suction cavity;
  • Step 3 The space formed in the left cavity keeps decreasing, and the air pressure keeps increasing.
  • the air pressure pushes the lubricating oil from the oil suction cavity to the pressure oil cavity, and presses it out through the left cavity.
  • the first pressure sensor acquires the inside of the oil suction cavity.
  • the second pressure value of the first temperature sensor acquires the second temperature value of the oil suction chamber;
  • Step 4 The control block obtains the rotation speed of the permanent magnet rotor, the pressure difference between the first pressure value and the second pressure value, and the temperature difference between the first temperature value and the second temperature value, and adjusts the amount of lubricating oil pressed;
  • Step 5 If at least two of the rotation speed of the permanent magnet rotor, the pressure difference between the first pressure value and the second pressure value, and the temperature difference between the first temperature value and the second temperature value exceed the preset threshold range, adjust and Reduce the amount of lubricating oil pressed; if the rotation speed of the permanent magnet rotor, the pressure difference between the first pressure value and the second pressure value, and the temperature difference between the first temperature value and the second temperature value, at least two items are lower than the preset valve Value range, adjust and increase the amount of lubricating oil pressed; if there are at least two items in the rotation speed of the permanent magnet rotor, the pressure difference between the first pressure value and the second pressure value, and the temperature difference between the first temperature value and the second temperature value If it belongs to the preset threshold range, the amount of lubricating oil pressed into it is kept unchanged.
  • the present invention can effectively adjust the pressure of lubricating oil through the coordinated use of the set control block, pressure sensor and temperature sensor, so that the utilization rate of lubricating oil can achieve the best effect, and the rotation speed of the permanent magnet rotor can be obtained through the control block.
  • the pressure difference between the first pressure value and the second pressure value and the temperature difference between the first temperature value and the second temperature value are compared with the preset threshold value and the amount of lubricating oil is adjusted to effectively improve the utilization of lubricating oil Efficiency, and can improve the service life of the oil suction cavity and the oil pressure cavity;
  • the invention can effectively improve the operating efficiency of the motor through the coordinated use of the inner rotor and the outer rotor.
  • Both the inner rotor and the outer rotor adopt a permanent magnet structure without excitation.
  • the inner rotor and the outer rotor are embedded in the motor housing. Internally, it can effectively save space and reduce manufacturing costs.
  • the motor is integrated with the pump body and there is no coupling, which reduces the transmission loss and effectively improves the transmission efficiency.
  • Fig. 1 is a three-dimensional structure diagram of an electric lubrication pump for an axle of the present invention
  • Figure 2 is a diagram of the internal structure of the motor housing in the present invention.
  • Figure 3 is a diagram of the connection structure of the inner rotor and the outer rotor in the present invention.
  • Figure 4 is a side view of the structure of the inner rotor and the outer rotor in the present invention.
  • Figure 5 is a structural diagram of the external connection between the outer rotor and the second pump cover in the present invention.
  • Figure 6 is a structural diagram of the internal connection between the outer rotor and the second pump cover in the present invention.
  • Lubrication pump body 2. Isolation ring; 3. First fixed column; 4. Motor housing; 5. Brushless motor stator; 6. Permanent magnet rotor; 7. Terminal; 8. Inner pad Pieces; 9. The second fixing column; 10. Outer gasket; 11. The first connecting column; 12. The first pump cover; 13. Control block; 14. Screw hole bracket; 15. Inner rotor; 16. Connecting shaft; 17. Outer rotor; 18. Second pump cover; 19. Fixing bolt; 20. Left cavity; 21. Right cavity; 22. Pump shaft; 23. Second connecting column; 24. Wire; 25. Positioning shaft; 26. Rotary column; 27, the first inner cavity; 28, the oil pressure cavity; 29, the oil suction cavity; 30, the second inner cavity; 31, the fixing hole.
  • the axle electric lubrication pump includes a lubrication pump body 1.
  • the outer surface of the lubrication pump body 1 is fixedly mounted with a motor housing 4, a first pump cover 12, and a second pump cover 18.
  • the motor housing 4 is located between the first pump cover 12 and the second pump cover 18.
  • the first pump cover 12 is located on one side of the second pump cover 18, and the motor housing 4 is
  • a first inner cavity 27 is fixedly installed on the surface, and a brushless motor stator 5, a permanent magnet rotor 6 and a pump shaft 22 are rotatably installed inside the first inner cavity 27.
  • the brushless motor stator 5 and the permanent magnet rotor 6 are both Located on one side of the pump shaft 22, the brushless motor stator 5 is located above the permanent magnet rotor 6, and the permanent magnet rotor 6 is located between the brushless motor stator 5 and the pump shaft 22.
  • An isolation ring 2 is clamped and installed at a position close to one side of the outer surface, a second inner cavity 30 is fixedly installed on the inner surface of the first pump cover 12, and a first connecting column is fixedly installed inside the second inner cavity 30 11.
  • the second connecting column 23 and the control block 13, the control block 13 is located on the outer surface of the first connecting column 11 and the second connecting column 23, the first connecting column 11 is located above the second connecting column 23, so A terminal 7 is fixedly connected between the first connecting column 11 and the stator 5 of the brushless motor.
  • the second fixing pillar 9 is located between the inner gasket 8 and the outer gasket 10.
  • the inner gasket 8 is located on one side of the outer gasket 10, and the inner gasket 8 passes through the second fixing pillar 9 and the outer gasket.
  • the sheet 10 is movably connected, and a wire 24 is fixedly connected to the outer surface of the first pump cover 12 near the lower end;
  • a screw hole bracket 14 is fixedly installed on the inner surface of the motor housing 4 near the lower end, a fixing bolt 19 is rotatably installed on the inner surface of the second pump cover 18, and the lubrication pump body 1 is rotatably connected with
  • a first fixed post 3 is installed, the first fixed post 3 is located above the inner rotor 15, and an axle gear box is fixedly installed at a position close to one side of the inside of the motor housing 4.
  • Two sets of permanent magnet rotors 6 are rotatably mounted on the outer surface of the pump shaft 22.
  • the two sets of permanent magnet rotors 6 are arranged in a symmetrical arrangement.
  • the outer surface of the lubrication pump body 1 is provided with oil inlet and outlet holes.
  • a positioning shaft 25 and a rotating column 26 are fixedly installed inside the inner rotor 15 at a position close to one side, and the positioning shaft 25 is located above the rotating column 26.
  • a second pump cover 18 is fixedly connected to the outer surface of the outer rotor 17 at a position close to one side.
  • the second pump cover 18 is provided with a pressure oil chamber 28 and an oil suction chamber 29.
  • the pressure oil chamber 28 is located in the oil suction chamber.
  • One side of the cavity 29, the oil pressure cavity 28 and the oil suction cavity 29 both penetrate through the inside of the second inner cavity 30, and a first pressure sensor is fixedly installed inside the oil pressure cavity 28.
  • a first temperature sensor is fixedly installed on the outer surface
  • a second pressure sensor is fixedly installed inside the oil suction chamber 29, and a second temperature sensor is fixedly installed on the outer surface of the oil suction chamber 29.
  • An inner rotor 15 is rotatably connected to the outer surface of the outer rotor 17 near the other side.
  • a left cavity 20 and a right cavity 21 are provided at a position between the inner rotor 15 and the outer rotor 17, and the left cavity 20 is located One side of the right cavity 21.
  • a plurality of fixing holes 31 are arranged inside the outer rotor 17 near the edge, and the plurality of fixing holes 31 are arranged and distributed at equal intervals.
  • the inner rotor 15 is rotatably connected with the outer rotor 17 through a rotating column 26.
  • the working steps of the axle electric lubrication pump include:
  • Step 1 Energize the lubrication pump body 1 and start it. A magnetic interaction occurs between the permanent magnet rotor 6 and the brushless motor stator 5.
  • the permanent magnet rotor 6 rotates clockwise, driving the axle gearbox to rotate clockwise, and then driving the inner rotor 15 and the outer rotor 17 rotate clockwise, the inner rotor 15 and the outer rotor 17 move eccentrically to obtain the left cavity 20 and the right cavity 21;
  • Step 2 The inner rotor 15 rotates clockwise, which drives the outer rotor 17 to rotate clockwise.
  • the space formed in the right cavity 21 continues to increase, and the air pressure continues to decrease.
  • the air pressure sucks the lubricating oil into the right cavity 21 and enters the oil suction cavity 29 ,
  • the first pressure sensor acquires the first pressure value in the oil suction chamber 29, and the first temperature sensor acquires the first temperature value of the oil suction chamber 29;
  • Step 3 The space formed in the left cavity 20 keeps decreasing and the air pressure keeps increasing.
  • the lubricating oil is pressed into the oil pressure cavity 28 from the oil suction cavity 29 through the air pressure, and is pressed out through the left cavity 20, the first pressure sensor Acquiring the second pressure value in the oil suction cavity 29, and the first temperature sensor acquiring the second temperature value of the oil suction cavity 29;
  • Step 4 The control block 13 obtains the rotation speed of the permanent magnet rotor 6, the pressure difference between the first pressure value and the second pressure value, and the temperature difference between the first temperature value and the second temperature value, and adjusts the amount of lubricating oil pressed;
  • Step 5 If at least two of the rotation speed of the permanent magnet rotor 6, the pressure difference between the first pressure value and the second pressure value, and the temperature difference between the first temperature value and the second temperature value exceed the preset threshold range, adjust And reduce the amount of lubricating oil pressed; if the rotation speed of the permanent magnet rotor 6, the pressure difference between the first pressure value and the second pressure value, and the temperature difference between the first temperature value and the second temperature value, at least two items are lower than the preset If the rotation speed of the permanent magnet rotor 6, the pressure difference between the first pressure value and the second pressure value, and the temperature difference between the first temperature value and the second temperature value are at least There are two items that belong to the preset threshold range, and the amount of lubricating oil is kept unchanged.
  • the working principle of the present invention is: the control block 13 is used to obtain the rotation speed of the permanent magnet rotor 6, and the first pressure sensor, the first temperature sensor, the second pressure sensor, and the second temperature sensor are used to obtain the first pressure value and the second pressure value.
  • the pressure difference and the temperature difference between the first temperature value and the second temperature value, and adjust the pressure of the lubricating oil where the model of the control block 13 can be the PLC controller, the model of the first pressure sensor and the second pressure sensor Both can be 37250-PR3-003, the models of the first temperature sensor and the second temperature sensor can both be J3000-38231G0; if the rotation speed of the permanent magnet rotor 6, the pressure difference between the first pressure value and the second pressure value, and the first At least two of the temperature difference between the temperature value and the second temperature value exceed the preset threshold range, then adjust and reduce the amount of lubricating oil pressed; if the rotation speed of the permanent magnet rotor 6 is the first pressure value and the second pressure value At least two of the pressure difference between
  • the PLC controller obtains the rotation speed and the first If two of the pressure difference between the first pressure value and the second pressure value and the temperature difference between the first temperature value and the second temperature value exceed the preset threshold value range, the amount of lubricating oil is adjusted and reduced; the lubrication pump body 1 outside
  • the surface is provided with an oil inlet and an oil outlet. The lubricating oil is sucked into the right cavity 21 from the oil inlet and into the oil suction cavity 29 by air pressure, and the lubricating oil is pressed into the oil pressure cavity 28 from the oil suction cavity 29 by air pressure. And press out from the oil outlet through the left cavity 20;
  • the amount of lubricating oil can be effectively adjusted, so that the utilization rate of the lubricating oil can achieve the best effect, and the rotation of the permanent magnet rotor 6 can be obtained through the control block 13.
  • the speed, the pressure difference between the first pressure value and the second pressure value and the temperature difference between the first temperature value and the second temperature value are compared with the preset threshold value and the amount of lubricating oil is adjusted to effectively improve the lubricating oil Utilization efficiency, and can increase the service life of the oil suction cavity 29 and the oil pressure cavity 28, and solve the problem of low lubricating oil utilization in the existing scheme;
  • the combined use of the inner rotor 15 and the outer rotor 17 can effectively improve the operating efficiency of the motor.
  • Both the inner rotor 15 and the outer rotor 17 adopt a permanent magnet structure without excitation.
  • the inner rotor 15 and the outer rotor 17 are embedded in the electric
  • the inside of the machine housing 4 can effectively save space and reduce manufacturing costs.
  • the motor is integrated with the pump body without a coupling, which reduces transmission loss, effectively improves transmission efficiency, and solves the operation of the motor in the existing solution. The problem of poor efficiency and the problem of large transmission efficiency loss.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Rotary Pumps (AREA)

Abstract

车桥电动润滑泵，包括润滑泵本体(1)，所述润滑泵本体(1)的外表面固定安装有电机壳体(4)、第一泵盖(12)和第二泵盖(18)；通过设置的控制块(13)、压力传感器以及温度传感器的配合使用，可以有效调节润滑油的压入量，使得润滑油的利用率达到最佳效果的目的，提高了润滑油的利用效率，并且可以提高吸油腔和压油腔的使用寿命；内转子(15)和外转子(17)均采用永磁结构，无需励磁，通过将内转子(15)和外转子(17)镶嵌至电机壳体(4)的内部，可以有效节省空间，电机与泵本体一体化，没有联轴节，降低了传动损失，提高了传动效率。

Description

车桥电动润滑泵 技术领域
本发明涉及车桥润滑泵技术领域，尤其涉及车桥电动润滑泵。
背景技术
汽车车桥，又称车轴，通过悬架与车架或承载式车身相连接，其两端安装车轮，车桥的作用是承受汽车的载荷，维持汽车在道路上的正常行驶，根据驱动方式的不同，车桥也分成转向桥、驱动桥、转向驱动桥和支持桥四种，其中转向桥和支持桥都属于从动桥，大多数汽车采用前置后驱动(FR)，因此前桥作为转向桥，后桥作为驱动桥；而前置前驱动(FF)汽车则前桥成为转向驱动桥，后桥充当支持桥；
润滑泵是一种润滑设备，向润滑部位供给润滑剂的，机械设备都需要定期的润滑，以前润滑的主要方式是根据设备的工作状况，到达一定的保养周期后进行人工润滑，润滑泵可以让这种维护工作更简便；供油润滑元件制造精良，性能完善，品质一流，是免维护集中润滑系统之必备，多功能监测元件，可以准确、及时地监护各润滑点的运行状况，报告机器故障部位，润滑泵分为手动润滑泵和电动润滑泵，自动润滑装置能有效地减少设备故障，降低能耗，提高生产效率，延长机器使用寿命。
专利公开号CN202203644U，公开了一种名称为新型电动润滑泵的专利，包括电动润滑泵和贮油器，所述贮油器外壁连接有线管，所述贮油器外部装有人孔，所述贮油器底部与电动润滑泵相通，其特征在于：所述贮油器内部装有液位控制装置，所述贮油器外壁装有球阀，所述电动润滑泵内设有两台双柱塞泵a和两台双柱塞泵b，所述双柱塞泵a和双柱塞泵b通过连杆机构与偏心轮活动连接，所述偏心轮与主轴固定连接，所述主轴与减速机构固定连接，所述减速机构与电机固定连接，所述双柱塞泵a和双柱塞 泵b的输出端与小集油块固定连接，所述双柱塞泵a和双柱塞泵b出口处装有单向阀。本实用新型的优点是：具有压力高、流量大、贮油筒补油周期长、适用油脂针入度范围宽的特点。目前的电动润滑泵的缺陷在于：无法控制润滑油的压入量，导致润滑油的利用率低，并且容易对泵内部的器件造成损坏，影响泵的使用寿命；泵运行过程中传动的损失导致传动的效率低，使得电机的运转效率差。
发明内容
本发明的目的在于提供车桥电动润滑泵，解决的技术问题包括：通过设置的控制块、压力传感器以及温度传感器的配合使用，可以有效调节润滑油的压入量，使得润滑油的利用率达到最佳效果的目的，通过控制块获取永磁转子的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差，与预设的阀值进行对比并调节润滑油的压入量，有效提高了润滑油的利用效率，并且可以提高吸油腔和压油腔的使用寿命，解决了现有方案中润滑油利用率低的问题；
本发明通过设置的内转子和外转子的配合使用，可以有效提高电机的运转效率，内转子和外转子均采用永磁结构，无需励磁，通过将内转子和外转子镶嵌至电机壳体的内部，可以有效节省空间，并降低制造成本，电机与泵本体一体化，没有联轴节，降低了传动损失，有效提高了传动的效率，解决了现有方案中电机的运转效率差的问题以及传动效率损耗大的问题。
本发明的目的可以通过以下技术方案实现：
车桥电动润滑泵，包括润滑泵本体，所述润滑泵本体的外表面固定安装有电机壳体、第一泵盖和第二泵盖，所述电机壳体位于第一泵盖和第二泵盖之间的位置，所述第一泵盖位于第二泵盖的一侧，所述电机壳体的内表面固定安装有第一内腔，所述第一内腔的内部转动安装有无刷电机定子、 永磁转子和泵轴，所述无刷电机定子和永磁转子均位于泵轴的一侧，所述无刷电机定子位于永磁转子的上方，所述永磁转子位于无刷电机定子和泵轴之间的位置，所述泵轴的外表面靠近一侧的位置卡合安装有隔离环，所述第一泵盖的内表面固定安装有第二内腔，所述第二内腔的内部固定安装有第一连接柱、第二连接柱和控制块，所述控制块位于第一连接柱和第二连接柱的外表面，所述第一连接柱位于第二连接柱的上方，所述第一连接柱与无刷电机定子之间固定连接有接线柱，所述接线柱的外表面固定安装有内垫片、第二固定柱和外垫片，所述第二固定柱位于内垫片和外垫片之间的位置，所述内垫片位于外垫片的一侧，所述内垫片通过第二固定柱和外垫片活动连接，所述第一泵盖的外表面靠近下端的位置固定连接有导线；
所述电机壳体的内表面靠近下端的位置固定安装有螺孔支架，所述第二泵盖的内表面转动安装有固定栓，所述润滑泵本体的内部转动连接有内转子、连接轴和外转子，所述内转子位于外转子的上方，所述连接轴镶嵌在内转子的内部，所述润滑泵本体的内部靠近上方的位置固定安装有第一固定柱，所述第一固定柱位于内转子的上方，所述电机壳体的内部靠近一侧的位置固定安装有车桥齿轮箱。
进一步的，所述泵轴的外表面转动安装有两组永磁转子，两组所述永磁转子呈对称排列分布，所述润滑泵本体的外表面设置有进油孔和出油孔。
进一步的，所述内转子的内部靠近一侧的位置固定安装有定位轴和转柱，所述定位轴位于转柱的上方。
进一步的，所述外转子的外表面靠近一侧的位置固定连接有第二泵盖，所述第二泵盖的内部设置有压油腔和吸油腔，所述压油腔位于吸油腔的一侧，所述压油腔和吸油腔均贯穿于第二内腔的内部，所述压油腔的内部固定安装有第一压力传感器，所述压油腔的外表面固定安装有第一温度传感器，所述吸油腔的内部固定安装有第二压力传感器，所述吸油腔的的外表 面固定安装有第二温度传感器。
进一步的，所述外转子的外表面靠近另一侧的位置转动连接有内转子，所述内转子和外转子之间的位置设置有左腔和右腔，所述左腔位于右腔的一侧。
进一步的，所述外转子的内部靠近边缘的位置设置有若干个固定孔，若干个所述固定孔呈等间距排列分布。
进一步的，所述内转子通过转柱与外转子转动连接。
所述车桥电动润滑泵的工作步骤包括：
步骤一：给润滑泵本体通电并启动，永磁转子和无刷电机定子之间产生磁作用，永磁转子进行顺时针旋转，带动车桥齿轮箱顺时针旋转，进而带动内转子和外转子顺时针转动，内转子和外转子偏心运动得到左腔和右腔；
步骤二：内转子顺时针转动，带动外转子顺时针转动，右腔内形成的空间不断增大，空气压力不断减小，通过空气压力将润滑油吸入右腔，进入吸油腔，第一压力传感器获取吸油腔内的第一压力值，第一温度传感器获取吸油腔的第一温度值；
步骤三：左腔内形成的空间不断减小，空气压力不断增大，通过空气压力将润滑油从吸油腔压入至压油腔，并通过左腔压出，第一压力传感器获取吸油腔内的第二压力值，第一温度传感器获取吸油腔的第二温度值；
步骤四：控制块获取永磁转子的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差，并调节润滑油的压入量；
步骤五：若永磁转子的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差至少有两项超过预设的阀值范围，则调节并减少润滑油的压入量；若永磁转子的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差至少有两项低于预设 的阀值范围，则调节并增加润滑油的压入量；若永磁转子的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差至少有两项属于预设的阀值范围，则保持润滑油的压入量不变。
本发明的有益效果：
本发明通过设置的控制块、压力传感器以及温度传感器的配合使用，可以有效调节润滑油的压入量，使得润滑油的利用率达到最佳效果的目的，通过控制块获取永磁转子的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差，与预设的阀值进行对比并调节润滑油的压入量，有效提高了润滑油的利用效率，并且可以提高吸油腔和压油腔的使用寿命；
本发明通过设置的内转子和外转子的配合使用，可以有效提高电机的运转效率，内转子和外转子均采用永磁结构，无需励磁，通过将内转子和外转子镶嵌至电机壳体的内部，可以有效节省空间，并降低制造成本，电机与泵本体一体化，没有联轴节，降低了传动损失，有效提高了传动的效率。
附图说明
附图说明
为了便于本领域技术人员理解，下面结合附图对本发明作进一步的说明。
图1为本发明车桥电动润滑泵的立体结构图；
图2为本发明中电机壳体的内部结构图；
图3为本发明中内转子与外转子的连接结构图；
图4为本发明中内转子与外转子的侧视结构图；
图5为本发明中外转子与第二泵盖的外部连接结构图；
图6为本发明中外转子与第二泵盖的内部连接结构图。
图中：1、润滑泵本体；2、隔离环；3、第一固定柱；4、电机壳体；5、无刷电机定子；6、永磁转子；7、接线柱；8、内垫片；9、第二固定柱；10、外垫片；11、第一连接柱；12、第一泵盖；13、控制块；14、螺孔支架；15、内转子；16、连接轴；17、外转子；18、第二泵盖；19、固定栓；20、左腔；21、右腔；22、泵轴；23、第二连接柱；24、导线；25、定位轴；26、转柱；27、第一内腔；28、压油腔；29、吸油腔；30、第二内腔；31、固定孔。
具体实施方式
下面将结合实施例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作出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
如图1-6所示，车桥电动润滑泵，包括润滑泵本体1，所述润滑泵本体1的外表面固定安装有电机壳体4、第一泵盖12和第二泵盖18，所述电机壳体4位于第一泵盖12和第二泵盖18之间的位置，所述第一泵盖12位于第二泵盖18的一侧，所述电机壳体4的内表面固定安装有第一内腔27，所述第一内腔27的内部转动安装有无刷电机定子5、永磁转子6和泵轴22，所述无刷电机定子5和永磁转子6均位于泵轴22的一侧，所述无刷电机定子5位于永磁转子6的上方，所述永磁转子6位于无刷电机定子5和泵轴22之间的位置，所述泵轴22的外表面靠近一侧的位置卡合安装有隔离环2，所述第一泵盖12的内表面固定安装有第二内腔30，所述第二内腔30的内部固定安装有第一连接柱11、第二连接柱23和控制块13，所述控制块13位于第一连接柱11和第二连接柱23的外表面，所述第一连接柱11位于第二连接柱23的上方，所述第一连接柱11与无刷电机定子5之间固定连接有接线柱7，所述接线柱7的外表面固定安装有内垫片8、第二固定柱9和 外垫片10，所述第二固定柱9位于内垫片8和外垫片10之间的位置，所述内垫片8位于外垫片10的一侧，所述内垫片8通过第二固定柱9和外垫片10活动连接，所述第一泵盖12的外表面靠近下端的位置固定连接有导线24；
所述电机壳体4的内表面靠近下端的位置固定安装有螺孔支架14，所述第二泵盖18的内表面转动安装有固定栓19，所述润滑泵本体1的内部转动连接有内转子15、连接轴16和外转子17，所述内转子15位于外转子17的上方，所述连接轴16镶嵌在内转子15的内部，所述润滑泵本体1的内部靠近上方的位置固定安装有第一固定柱3，所述第一固定柱3位于内转子15的上方，所述电机壳体4的内部靠近一侧的位置固定安装有车桥齿轮箱。
所述泵轴22的外表面转动安装有两组永磁转子6，两组所述永磁转子6呈对称排列分布，所述润滑泵本体1的外表面设置有进油孔和出油孔。
所述内转子15的内部靠近一侧的位置固定安装有定位轴25和转柱26，所述定位轴25位于转柱26的上方。
所述外转子17的外表面靠近一侧的位置固定连接有第二泵盖18，所述第二泵盖18的内部设置有压油腔28和吸油腔29，所述压油腔28位于吸油腔29的一侧，所述压油腔28和吸油腔29均贯穿于第二内腔30的内部，所述压油腔28的内部固定安装有第一压力传感器，所述压油腔28的外表面固定安装有第一温度传感器，所述吸油腔29的内部固定安装有第二压力传感器，所述吸油腔29的的外表面固定安装有第二温度传感器。
所述外转子17的外表面靠近另一侧的位置转动连接有内转子15，所述内转子15和外转子17之间的位置设置有左腔20和右腔21，所述左腔20位于右腔21的一侧。
所述外转子17的内部靠近边缘的位置设置有若干个固定孔31，若干个所述固定孔31呈等间距排列分布。
所述内转子15通过转柱26与外转子17转动连接。
所述车桥电动润滑泵的工作步骤包括：
步骤一：给润滑泵本体1通电并启动，永磁转子6和无刷电机定子5之间产生磁作用，永磁转子6进行顺时针旋转，带动车桥齿轮箱顺时针旋转，进而带动内转子15和外转子17顺时针转动，内转子15和外转子17偏心运动得到左腔20和右腔21；
步骤二：内转子15顺时针转动，带动外转子17顺时针转动，右腔21内形成的空间不断增大，空气压力不断减小，通过空气压力将润滑油吸入右腔21，进入吸油腔29，第一压力传感器获取吸油腔29内的第一压力值，第一温度传感器获取吸油腔29的第一温度值；
步骤三：左腔20内形成的空间不断减小，空气压力不断增大，通过空气压力将润滑油从吸油腔29压入至压油腔28，并通过左腔20压出，第一压力传感器获取吸油腔29内的第二压力值，第一温度传感器获取吸油腔29的第二温度值；
步骤四：控制块13获取永磁转子6的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差，并调节润滑油的压入量；
步骤五：若永磁转子6的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差至少有两项超过预设的阀值范围，则调节并减少润滑油的压入量；若永磁转子6的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差至少有两项低于预设的阀值范围，则调节并增加润滑油的压入量；若永磁转子6的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差至少有两项属于预设的阀值范围，则保持润滑油的压入量不变。
本发明的工作原理为：利用控制块13通过获取永磁转子6的旋转速度， 利用第一压力传感器、第一温度传感器、第二压力传感器以及第二温度传感器获取第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差，并调节润滑油的压入量，其中，控制块13的型号可以为PLC控制器，第一压力传感器和第二压力传感器的型号可以均为37250-PR3-003，第一温度传感器和第二温度传感器的型号可以均为J3000-38231G0；若永磁转子6的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差至少有两项超过预设的阀值范围，则调节并减少润滑油的压入量；若永磁转子6的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差至少有两项低于预设的阀值范围，则调节并增加润滑油的压入量；若永磁转子6的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差至少有两项属于预设的阀值范围，则保持润滑油的压入量不变；例如，PLC控制器获取永磁转子6的旋转速度为1500转/min，第一压力值第二压力值的压力差为150Pa，第一温度值和第二温度值的温度差为20℃，预设的永磁转子6的旋转速度范围为1300转/min-1600转/min，预设的压力差为120Pa，预设的压力差为温度差为15℃，PLC控制器获取永磁转子6的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差有两项超过预设的阀值范围，则调节降低润滑油的压入量；润滑泵本体1的外表面设置有进油孔和出油孔，通过空气压力将润滑油从进油孔吸入右腔21，并进入吸油腔29，通过空气压力将润滑油从吸油腔29压入至压油腔28，并通过左腔20从出油孔压出；
通过设置的控制块13、压力传感器以及温度传感器的配合使用，可以有效调节润滑油的压入量，使得润滑油的利用率达到最佳效果的目的，通过控制块13获取永磁转子6的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差，与预设的阀值进行对比并调节润 滑油的压入量，有效提高了润滑油的利用效率，并且可以提高吸油腔29和压油腔28的使用寿命，解决了现有方案中润滑油利用率低的问题；
通过设置的内转子15和外转子17的配合使用，可以有效提高电机的运转效率，内转子15和外转子17均采用永磁结构，无需励磁，通过将内转子15和外转子17镶嵌至电机壳体4的内部，可以有效节省空间，并降低制造成本，电机与泵本体一体化，没有联轴节，降低了传动损失，有效提高了传动的效率，解决了现有方案中电机的运转效率差的问题以及传动效率损耗大的问题。
以上公开的本发明优选实施例只是用于帮助阐述本发明。优选实施例并没有详尽叙述所有的细节，也不限制该发明仅为所述的具体实施方式。显然，根据本说明书的内容，可作很多的修改和变化。本说明书选取并具体描述这些实施例，是为了更好地解释本发明的原理和实际应用，从而使所属技术领域技术人员能很好地理解和利用本发明。本发明仅受权利要求书及其全部范围和等效物的限制。

Claims (8)

  1. 车桥电动润滑泵，其特征在于，包括润滑泵本体(1)，所述润滑泵本体(1)的外表面固定安装有电机壳体(4)、第一泵盖(12)和第二泵盖(18)，所述电机壳体(4)位于第一泵盖(12)和第二泵盖(18)之间的位置，所述第一泵盖(12)位于第二泵盖(18)的一侧，所述电机壳体(4)的内表面固定安装有第一内腔(27)，所述第一内腔(27)的内部转动安装有无刷电机定子(5)、永磁转子(6)和泵轴(22)，所述无刷电机定子(5)和永磁转子(6)均位于泵轴(22)的一侧，所述无刷电机定子(5)位于永磁转子(6)的上方，所述永磁转子(6)位于无刷电机定子(5)和泵轴(22)之间的位置，所述泵轴(22)的外表面靠近一侧的位置卡合安装有隔离环(2)，所述第一泵盖(12)的内表面固定安装有第二内腔(30)，所述第二内腔(30)的内部固定安装有第一连接柱(11)、第二连接柱(23)和控制块(13)，所述控制块(13)位于第一连接柱(11)和第二连接柱(23)的外表面，所述第一连接柱(11)位于第二连接柱(23)的上方，所述第一连接柱(11)与无刷电机定子(5)之间固定连接有接线柱(7)，所述接线柱(7)的外表面固定安装有内垫片(8)、第二固定柱(9)和外垫片(10)，所述第二固定柱(9)位于内垫片(8)和外垫片(10)之间的位置，所述内垫片(8)位于外垫片(10)的一侧，所述内垫片(8)通过第二固定柱(9)和外垫片(10)活动连接，所述第一泵盖(12)的外表面靠近下端的位置固定连接有导线(24)；
    所述电机壳体(4)的内表面靠近下端的位置固定安装有螺孔支架(14)，所述第二泵盖(18)的内表面转动安装有固定栓(19)，所述润滑泵本体(1)的内部转动连接有内转子(15)、连接轴(16)和外转子(17)，所 述内转子(15)位于外转子(17)的上方，所述连接轴(16)镶嵌在内转子(15)的内部，所述润滑泵本体(1)的内部靠近上方的位置固定安装有第一固定柱(3)，所述第一固定柱(3)位于内转子(15)的上方，所述电机壳体(4)的内部靠近一侧的位置固定安装有车桥齿轮箱。
  2. 根据权利要求1所述的车桥电动润滑泵，其特征在于，所述泵轴(22)的外表面转动安装有两组永磁转子(6)，两组所述永磁转子(6)呈对称排列分布，所述润滑泵本体(1)的外表面设置有进油孔和出油孔。
  3. 根据权利要求1所述的车桥电动润滑泵，其特征在于，所述内转子(15)的内部靠近一侧的位置固定安装有定位轴(25)和转柱(26)，所述定位轴(25)位于转柱(26)的上方。
  4. 根据权利要求1所述的车桥电动润滑泵，其特征在于，所述外转子(17)的外表面靠近一侧的位置固定连接有第二泵盖(18)，所述第二泵盖(18)的内部设置有压油腔(28)和吸油腔(29)，所述压油腔(28)位于吸油腔(29)的一侧，所述压油腔(28)和吸油腔(29)均贯穿于第二内腔(30)的内部，所述压油腔(28)的内部固定安装有第一压力传感器，所述压油腔(28)的外表面固定安装有第一温度传感器，所述吸油腔(29)的内部固定安装有第二压力传感器，所述吸油腔(29)的的外表面固定安装有第二温度传感器。
  5. 根据权利要求1所述的车桥电动润滑泵，其特征在于，所述外转子(17)的外表面靠近另一侧的位置转动连接有内转子(15)，所述内转子(15)和外转子(17)之间的位置设置有左腔(20)和右腔(21)，所述左腔(20)位于右腔(21)的一侧。
  6. 根据权利要求1所述的车桥电动润滑泵，其特征在于，所述外转子(17)的内部靠近边缘的位置设置有若干个固定孔(31)，若干个所述固定孔(31)呈等间距排列分布。
  7. 根据权利要求1所述的车桥电动润滑泵，其特征在于，所述内转子(15)通过转柱(26)与外转子(17)转动连接。
  8. 根据权利要求1-6任一项所述的车桥电动润滑泵，其特征在于，所述车桥电动润滑泵的工作步骤包括：
    步骤一：给润滑泵本体(1)通电并启动，永磁转子(6)和无刷电机定子(5)之间产生磁作用，永磁转子(6)进行顺时针旋转，带动车桥齿轮箱顺时针旋转，进而带动内转子(15)和外转子(17)顺时针转动，内转子(15)和外转子(17)偏心运动得到左腔(20)和右腔(21)；
    步骤二：内转子(15)顺时针转动，带动外转子(17)顺时针转动，右腔(21)内形成的空间不断增大，空气压力不断减小，通过空气压力将润滑油吸入右腔(21)，进入吸油腔(29)，第一压力传感器获取吸油腔(29)内的第一压力值，第一温度传感器获取吸油腔(29)的第一温度值；
    步骤三：左腔(20)内形成的空间不断减小，空气压力不断增大，通过空气压力将润滑油从吸油腔(29)压入至压油腔(28)，并通过左腔(20)压出，第一压力传感器获取吸油腔(29)内的第二压力值，第一温度传感器获取吸油腔(29)的第二温度值；
    步骤四：控制块(13)获取永磁转子(6)的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差，并调节润滑油的压入量；
    步骤五：若永磁转子(6)的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差至少有两项超过预设的阀值范围，则调节并减少润滑油的压入量；若永磁转子(6)的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度值的温度差至少有两项低于预设的阀值范围，则调节并增加润滑油的压入量；若永磁转子(6)的旋转速度、第一压力值第二压力值的压力差以及第一温度值和第二温度 值的温度差至少有两项属于预设的阀值范围，则保持润滑油的压入量不变。
PCT/CN2020/125018 2020-04-17 2020-10-30 车桥电动润滑泵 WO2021208405A1 (zh)

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