• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Lubricant supply device for bearings (4, 5) of a rotating machine (1) comprising a stator (2) and a rotor (3), comprising means (12, 10, 11) for injection of lubricant into the said bearings, the said means being controlled by an electronic control circuit (17) receiving, at its input, signals from sensors (18 to 21) of parameters which are characteristic of the operating state of the bearings, characterised in that the said means comprise a reservoir (12) for lubricant under pressure linked to injector blocks (10, 11) each connected to a feed channel (6, 7) of a bearing, the said sensors being pressure and temperature sensors, and the said electronic circuit (17) comprising a clock and deriving, as a function of a pre-established programme, the injection cycles, taking account of the data supplied by the said sensors and of the operating time of the bearings. …<IMAGE>…
    公开号:SU1746901A3
    申请号:SU904743893
    申请日:1990-05-21
    公开日:1992-07-07
    发明作者:Лонг Жак；Перрила-Амед Дени
    申请人:Алькатель Сит (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to mechanical engineering, primarily for the automatic and independent lubrication of bearings of a turbomolecular-type vacuum pump.
    The purpose of the invention is to increase the efficiency of the lubricant.
    1 schematically shows a device for supplying lubricant to machine bearings, a longitudinal section; Figures 2-5 show the injection unit at different moments of the location of the spools, section.
    A device for supplying lubricant to machine bearings, for example, a turbo-molecular type high speed vacuum pump having a stator 1 and a rotor (not shown), has a shaft 2 rigidly connected to the rotor mounted in the stator 1 by means of two ball bearings 3 and 4. In the stator 1. Power supply channels 5 and 6 are made for bearings
    3 and 4. Screws 7 and 8 are made in the form of a knurling on the necks of the shaft 2 in the vicinity of the bearings 3 and 4 in order to move the lubricant into the bearings. Outlets of channels 5 and 6. The feeds for the bearings are located in the zone of the screws 7 and 8. During the rotation of the rotor and shaft 2, the oil from the feed channels 5 and 6 goes through the knurling into the ball bearings 3 and 4, ensuring uniform lubrication of the bearings around their perimeter.
    Each lubrication feed channel 5 (6) is connected to an injection unit 9 (10) to introduce a calibrated amount of lubricant into this feed channel. The injection units 9 and 10 communicate with the lubrication reservoir 11 and are controlled by an electronic circuit 12 with outlets 13-16 for providing injection cycles for each bearing 3 and 4.
    2
    ON Yu O

    WITH
    Near the bearings 3 and 4, pressure sensors 17 and 18 and temperature sensors 19 and 20 are installed, which are connected to electronic circuit 12.
    The electronic circuit 12 has a clock for providing injection cycles taking into account the information provided by said sensors 17-20 and the operating time of the bearings.
    The lubricant reservoir 11 (Fig. 2) is a reservoir filled with lubricant under pressure by means of a spring-loaded piston 21. The lubricant is fed into the reservoir 11 through a hole with a plug 22. The volume of this reservoir is matched with the number of lubricants required. With each injection unit 9 (10), the reservoir 11 is communicated via conduit 23.
    Each injection unit 9 (10) (FIG. 2) has an inlet 24, in communication with the reservoir 11, and an outlet
    25 connected to the supply channel of the corresponding bearing 3 (4).
    Inlet 24 and outlet 25 holes are communicated by a system of internal channels 26-28, two of which 26 and 27 are parallel. The channel 26 continues the inlet 24, the channel 27 is connected to the outlet
    26. Channels 26 and 27 are connected by channel 28, which is a transverse channel with respect to channels 26 and 27.
    In block 9 (10), channel 28 is made parallel to channel 28, passing through channels 26 and 27.
    The channel 29 houses a valve spool 30 with diametrical holes 31 and 32.
    In this channel 29, the valve spool 30 can assume two positions: in the first (in FIG. 2), the diametrical opening 31 coincides with the channel 26 and the inlet opening 24 is connected to the channel 26, and the outlet opening 26 is blocked, in the second - the diagonal opening 32 coincides with channel 27 and this channel is connected to the outlet 25, and the inlet 24 is closed.
    The valve spool 30 is pressed by the return spring 33 and is driven by the drive to act in the opposite direction in the form of an electromagnet with a winding 34 and a magnetized core 35.
    The injection unit 9 (10) has, moreover, an injection valve 36 located in a channel 28 intersecting the parallel channels 26 and 27.
    The injector valve 36 is also pressed by the return spring 37 and is controlled by an electromagnet with a winding 38 and
    magnetized core 39. The injector spool 36 on the side of the spring 37 has a rod 40 with a piston 41, squeezing grease into the channel 27 through the holes 42.
    In the first position (FIGS. 2 and 3), the injection spool 36 releases the lubricant passage 28, the second position (FIGS. 4 and 5), the spool 36, is located in the passage 28, thus pushing
    0 lubrication to channel 27. In order to ensure the best efficiency, windings 34 and 38 have a magnetic circuit 43 and 44.
    The device works as follows.
    5 In the position of FIG. 2, the inlet 24 is open, the outlet 25 is closed. The injection spool 36 extends to the right. The lubricant, ejected by the spring-loaded piston 25 from the reservoir 11, completely fills the channels 23-28. In the position of the valve slide in FIG. 3, the inlet 24 is closed and the outlet 25 is opened by sealing the winding 34.
    5 Figure 4 shows the injection phase by energizing winding 38: the injection valve 36 moves to the right through channel 28, pushing grease into channel 27 through opening 25 to channels 5 and 6 of the power supply.
    0 Figure 5 shows the position of the valve spool 30 when the current is turned off in the winding 34, when the inlet 28 is open and the outlet 25 is closed. Then the power of the winding 38 is stopped
    5 (FIG. 2), the return spring 37 returns the injection valve 36 to its initial position. At start-up, it is necessary to fill the channels with lubricant up to the supply channels 5 and 6.
    权利要求:
    Claims (4)
    [1]
    0 In order to prevent the lubricant from returning back due to the pressure drop caused by the spool withdrawal, it is advisable to shut off the outlet 25, claims
    51. A device for supplying lubricant to bearings of a machine having a stator and a rotor, comprising means for injecting lubricant into bearings, an electronic circuit controlling them, with sensors characterizing parameters of the state of operation of bearings, and supply channels for bearings, characterized in that in order to increase the lubricant efficiency, the agent for injecting the lubricant includes a pressure lubrication reservoir connected to it and to the supply channels of the injection units controlled by an electronic circuit, with the aforementioned dates Ikov used pressure sensors and temperature sensors, and electronic circuit
    it is equipped with a clock to provide injection cycles taking into account the information given by said sensors and the running time of the bearings.
    2. The device according to claim 1, wherein it is in each injection unit that an inlet is made communicating with said lubricant reservoir and an outlet opening connected to the supply channel of the corresponding bearing The aforementioned holes communicate with the system of internal channels in which the valve and injector spools are located, while the valve spool is placed in its water position when moving with the possibility of blocking the internal channel to the outlet orifice and free flow of lubricant from inlet in its other position - with the possibility of overlapping the internal
    [2]
    /
    it has a channel to the inlet and free flow of lubricant to the outlet, and the injection spool is placed in one of its position as it moves so that the flow of lubricant through the corresponding internal channels from the inlet to the outlet and in its other position can be blocked. from these internal channels.
    3. The device according to claim 2, characterized in that the valve and injector spools of each unit are provided with actuators in the form of polarized electromagnets controlled by an electronic circuit.
    [3]
    4. A device according to claims 1 to 3, characterized in that it is provided with augers for advancing lubrication to the bearings in communication with their feed channels.
    [4]
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    同族专利:
    公开号 | 公开日
    FR2647182A1|1990-11-23|
    EP0399323A1|1990-11-28|
    FR2647182B1|1992-01-10|
    US5060760A|1991-10-29|
    JPH034098A|1991-01-10|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8906637A|FR2647182B1|1989-05-22|1989-05-22|DEVICE FOR THE GREASE SUPPLY OF MULTIPLE BEARINGS|
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