CN115414717A - Inside automatic filtration structure of motor and motor - Google Patents

Inside automatic filtration structure of motor and motor Download PDF

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Publication number
CN115414717A
CN115414717A CN202211226635.4A CN202211226635A CN115414717A CN 115414717 A CN115414717 A CN 115414717A CN 202211226635 A CN202211226635 A CN 202211226635A CN 115414717 A CN115414717 A CN 115414717A
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China
Prior art keywords
filter
filtering
rod
pipeline
channel
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Granted
Application number
CN202211226635.4A
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Chinese (zh)
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CN115414717B (en
Inventor
柏宇星
臧利国
文少波
辛江慧
周盼
许丽娇
孙海燕
陈伟
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Nanjing Institute of Technology
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Nanjing Institute of Technology
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Priority to CN202211226635.4A priority Critical patent/CN115414717B/en
Publication of CN115414717A publication Critical patent/CN115414717A/en
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Publication of CN115414717B publication Critical patent/CN115414717B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31—Self-supporting filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31—Self-supporting filtering elements
    • B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/26—Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The invention provides an automatic filtering structure in a motor and the motor. The automatic filtering structure comprises a filter shell, is arranged on the inner side of the inner wall of the motor, is provided with a through hole filtering channel and is provided with a filter cavity. The filter shell is at least provided with a filter hole A and a filter hole B which penetrate through the through hole filtering channel in the vertical direction, and a filter rod A and a filter rod B are respectively connected in the filter hole A and the filter hole B in a sliding manner; the filter stick A and the filter stick B at least comprise a filtering section and a passing section which are distributed up and down; the filter cavity is at least internally provided with a piston cylinder, a piston cylinder driving mechanism, a limit connecting rod B connected with a piston of the piston cylinder, and a slide block A and a slide block B which are arranged on the limit connecting rod B; one end of the piston driving mechanism is connected with the filtering channel, and the other end of the piston driving mechanism is connected with the piston cylinder and used for driving the piston to drive the limiting connecting rod to move according to the pressure of the filtering channel. According to the invention, the automatic filtering structure is added in the motor, so that the self-cleaning function is realized, and impurities generated in the motor cavity can be continuously and effectively filtered.

Description

Inside automatic filtration structure of motor and motor
Technical Field
The invention belongs to the technical field of wet motors, and particularly relates to an automatic filtering structure inside a motor and the motor.
Background
The high-power wet motor adopts internal independent circulation to cool and radiate the interior of the motor. In the cooling circulation process, if impurities are generated in the motor cavity due to reasons such as bearing abrasion and the like, the impurities cannot be discharged out of the motor cavity in time, so that the impurities are always involved in internal circulation to further damage the internal structure of the motor, the motor is greatly damaged, and the service life of the motor is shortened.
In the prior art, a structure capable of automatically filtering the interior of the motor does not exist, and impurities in cooling liquid in the motor cannot be discharged in time.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an automatic filtering structure in a motor and the motor, which can optimize the situation that impurities in cooling liquid in the motor cannot be discharged in time.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides an automatic filtering structure in a motor, which comprises a filter shell, a filter cavity and a filter cavity, wherein the filter shell is arranged on the inner side of the inner wall of the motor and is provided with a through hole filtering channel.
The filter shell is at least provided with a filter hole A and a filter hole B which penetrate through the through hole filtering channel in the vertical direction, two ends of the filter hole A and the filter hole B are respectively connected with a medium conveying channel of the motor and the filter cavity, and a filter rod A and a filter rod B are respectively connected in the filter hole A and the filter hole B in a sliding manner;
the filter stick A and the filter stick B at least comprise a filtering section and a passing section which are distributed up and down;
the filter cavity is at least internally provided with a piston cylinder, a piston cylinder driving mechanism, a limit connecting rod B connected with a piston of the piston cylinder, and a slide block A and a slide block B which are arranged on the limit connecting rod B;
the filter rod A is in contact fit with the sliding block A, and the filter rod B is in contact fit with the sliding block B, so that the horizontal movement of the sliding block A and the sliding block B can be converted into the vertical movement of the filter rod A and the filter rod B, and the passing section or the filtering section of the filter rod A or the filter rod B is located in a filtering channel flow passage. The sliding block A is matched with the sliding block B and can move along with the limiting connecting rod B, so that the state that the filtering section of the filtering rod A and the filtering section of the filtering rod B are positioned in the filtering channel flow passage is switched with the state that the filtering section of the filtering rod A and the filtering section of the filtering rod B are positioned in the filtering channel flow passage;
one end of the piston driving mechanism is connected with the filtering channel, and the other end of the piston driving mechanism is connected with the piston cylinder and used for driving the piston to drive the limiting connecting rod to move according to the pressure of the filtering channel.
The effect of the above setting: according to the internal circulation cooling mode, the cooling liquid in the motor cavity flows through the filtering channel, at the moment, the filtering rod A filtering section and the filtering rod B filtering section are located in the filtering channel flow channel through sections, the cooling liquid is continuously filtered through the filtering rod A filtering section, the filtering rod B filtering section is located in the medium conveying channel, and the medium conveying channel can wash the filtering rod B filtering section. When impurities accumulated in the filtering section of the filter rod A are blocked, so that the liquid pressure in the filtering channel is increased, the liquid pressure is transmitted to the piston cylinder driving mechanism, the piston cylinder driving mechanism is switched into a state that the filtering section of the filter rod A and the filtering section of the filter rod B are positioned in a filtering channel flow passage, and the medium conveying channel can flush the filtering section of the filter rod A, so that the circulation is repeated.
Further, the piston cylinder is divided into a rod cavity and a rodless cavity by the piston;
the piston cylinder driving mechanism comprises an overflow valve, a two-position four-way electromagnetic directional valve, a one-way valve, a pipeline A, a pipeline B, a pipeline C and a pipeline D;
the pipeline A is communicated with the filtering channel and the two-position four-way electromagnetic directional valve, the pipeline B is communicated with the filtering channel and the two-position four-way electromagnetic directional valve, the pipeline C is communicated with the two-position four-way electromagnetic directional valve and the piston cylinder rod cavity, and the pipeline D is communicated with the two-position four-way electromagnetic directional valve and the piston cylinder rodless cavity.
When the two-position four-way electromagnetic directional valve is in the left position, the pipeline A is communicated with the pipeline D, and the pipeline B is communicated with the pipeline C;
when the two-position four-way electromagnetic directional valve is at the right position, the pipeline A is communicated with the pipeline C, and the pipeline B is communicated with the pipeline D;
the overflow valve is positioned in the middle of the pipeline A, and the pressure control path is the pressure of the filtering channel.
The one-way valve is positioned in the middle of the pipeline B and allows the flow direction to flow to the filtering channel from the two-position four-way electromagnetic directional valve;
the limiting connecting rod B is also provided with a limiting switch B and a limiting switch C;
the filter cavity is at least internally provided with a limit switch A matched with the limit switch B and a limit switch D matched with the limit switch C;
and the limit switch D controls the right position of the two-position four-way electromagnetic directional valve. The limit switch A controls the left position of the two-position four-way electromagnetic directional valve.
The effect of the above setting: when impurities accumulated in the filtering section of the filter rod A are blocked, the liquid pressure in the filtering channel rises, the liquid pressure is transmitted to the overflow valve, the overflow valve is communicated with the pipeline A, at the moment, the liquid in the filtering channel flows into the rodless cavity of the piston cylinder through the pipeline A, the overflow valve and the left position of the two-position four-way electromagnetic directional valve, and the pipeline D flows into the rodless cavity of the piston cylinder. The liquid in the cavity with the rod flows back to the filtering channel through the pipeline C, the left position of the two-position four-way electromagnetic reversing valve, the one-way valve and the pipeline B. The piston is changed in stress balance, and the piston drives the limiting connecting rod B to move leftwards. Because the filter rod B is contacted with the slide block B, the filter rod A is contacted with the slide block A. The leftward translation of the sliding block B and the sliding block A is converted into the upward translation of the filter rod A and the downward translation of the filter rod B. The piston moves to the leftmost position, the bottom of the filter rod A is in contact with the top of the sliding block A, and the filter rod A is integrally located at the highest position. The filtering section of the filtering rod A is positioned in the conveying medium flowing cavity, the conveying medium of the pump continuously washes the filtering section of the filtering rod A at the moment, and the filtering rod A passing section is positioned in the filtering channel. The bottom of the filter rod B is contacted with the bottom of the sliding block B, and the filter rod B is integrally positioned at the lowest position. The filter rod B filter section is positioned in the filter channel. The flow in the filtering channel is recovered, the pressure is reduced, and the overflow valve is disconnected. Meanwhile, the limit switch C is in contact with the limit switch D, the limit switch D sends a signal to the right position of the two-position four-way electromagnetic reversing valve, and the two-position four-way electromagnetic reversing valve is switched to the right position to work, so that the two-position four-way electromagnetic reversing valve can be circularly reciprocated, and impurities in the cooling liquid can be continuously filtered and discharged.
Furthermore, the piston cylinder is installed on the bottom side of the filter cavity through a fastener, and the piston is connected with the limiting connecting rod B through a fastener.
The effect of the above setting: the piston cylinder is connected with the filter cavity and the piston and the limiting connecting rod B through fasteners, and is firm in connection, detachable in installation and convenient to overhaul and replace.
Further, limit switch D is fixed on filter shell B inner wall, limit switch A passes through limit connecting rod A and fixes on filter shell B inner wall.
Furthermore, the sections of the sliding block B and the sliding block A are both triangular.
The effect of the above setting: the triangular sliding block can effectively lift the filter rod, the lifting is smooth, and the moving speed of the filter rod is controllable.
Further, the filter shell is assembled by a filter shell A and a filter shell B.
The effect of the above setting: the filter shell is assembled, so that the filter shell is convenient to move, disassemble, assemble and overhaul.
Further, filter rod A and filter rod B all include the filter segment, block section and pass through the section from last to down in proper order.
The effect of the above setting: the blocking section is arranged to prevent the coolant between the medium conveying channel and the filtering channel from being communicated through the filtering rod, so that the purifying effect is provided.
Furthermore, the height of the filtering section, the height of the blocking section and the height of the passing section are consistent, and the heights of the filtering section, the blocking section and the passing section are equal to the outer diameter of the filtering channel and the thickness of the inner wall of the motor.
The effect of the above setting: the height of the filtering section, the height of the blocking section and the height of the passing section are equal to the outer diameter of the filtering channel and the thickness of the inner wall of the motor, so that switching among the sections is facilitated, and liquid flowing between the medium conveying channel and the filtering channel is prevented.
In a second aspect, the present invention provides a wet electric machine comprising an automatic filtration structure inside the machine according to the first aspect.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the automatic filtering structure is added in the motor, so that the automatic filtering structure has a self-cleaning function, impurities generated in the motor cavity can be continuously and effectively filtered, the cooling and lubricating effects of cooling liquid in the motor cavity are ensured, the reliability of the motor is ensured, and the service life of the motor is prolonged.
Drawings
FIG. 1 is a schematic structural diagram (left-side operation) of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram (right-hand operation) of an embodiment of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 1;
fig. 4 is a schematic view of the installation position of the wet motor according to the present embodiment.
Wherein: 1. a filter housing; 2. a filter rod A; 3. a filter rod B; 4. a piston cylinder; 5. a piston; 6. a slide block B; 7. a slide block A; 8. a limit switch A; 9. a limit switch B; 10. a limit switch C; 11. a limit switch D; 12. a limiting connecting rod A; 13. a limiting connecting rod B; 14. a pipeline A; 15. an overflow valve; 16. a pipeline B; 17. a one-way valve; 18. a two-position four-way electromagnetic directional valve; 19. a pipe C; 20. a pipe D; 21. the inner wall of the motor; 22. a bearing gland;
101-a filtration channel; 102-a filter chamber; 103-filter pore a; 104-filter pore B; 111-filter housing a; 112-filter housing B; 201-filter stick a filtration section; 202-filter rod a blocking section; 203-filter rod a pass through section; 301-filter rod B filtration section; 302-filter rod B blocking section; 303-filter rod B pass section; 2201-bearing gland bores.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of describing the present embodiment and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, cannot be construed as limiting the present embodiment.
The first embodiment is as follows:
this embodiment provides an inside automatic filtration structure of motor, and the structure includes:
as shown in fig. 1, the filter housing 1 is installed inside the motor inner wall 21, and the filter housing 1 is assembled by a filter housing a111 and a filter housing B112. A through-hole filter passage 101 is formed and a filter chamber 102 is provided.
The piston cylinder 4 is arranged on the bottom side of the filter cavity 102 by using a fastener, the piston 5 is connected with a limiting connecting rod B13 by using a fastener, and the inner cavity of the piston cylinder 4 is divided into a rod cavity and a rodless cavity, wherein the left cavity is the rod cavity, and the right cavity is the rodless cavity. The limiting connecting rod B13 is sequentially provided with a limiting switch C10, a sliding block A7, a limiting switch B9 and a sliding block B6 from left to right.
The limit switch D11 is fixed on the inner wall of the filter shell B112, the limit connecting rod A12 is fixed on the inner wall of the filter shell B112, and the limit switch A8 is connected to the right side of the limit connecting rod A12.
The cross sections of the sliding block B6 and the sliding block A7 are triangular, and the filter rod A2 is in contact fit with the sliding block A7, so that the horizontal movement of the sliding block A7 can be converted into the vertical movement of the filter rod A2. The filter rod B3 is in contact fit with the sliding block B6, and the horizontal movement of the sliding block B6 can be converted into the vertical movement of the filter rod B3.
The filter rod A2 and the filter rod B3 are divided into three parts from top to bottom, namely a filter rod A filtering section 201, a filter rod A blocking section 202 and a filter rod A passing section 203. And the three are consistent in height and equal to the outer diameter of the filtering channel 101 and the thickness of the inner wall 21 of the motor.
The filter case 1 has filter holes a103 and filter holes B104 opened in the vertical direction. The filter holes a103 and B104 have inner diameters corresponding to the outer diameters of the filter rods A2 and B3. The filter rod A2 can slide up and down along the filter hole A103, and the contact part of the filter rod A2 and the filter hole A103 can play a sealing role.
As shown in fig. 3, a pipeline a14 communicates with the filtering passage 101 and the two-position four-way electromagnetic directional valve 18, a pipeline B16 communicates with the filtering passage 101 and the two-position four-way electromagnetic directional valve 18, a pipeline C19 communicates with the two-position four-way electromagnetic directional valve 18 and the rod cavity of the piston cylinder 4, and a pipeline D20 communicates with the two-position four-way electromagnetic directional valve 18 and the rodless cavity of the piston cylinder 4.
The overflow valve 15 is located in the middle of the pipeline a14, and the pressure control path is the pressure of the filtering channel 101, and is used for allowing the filtering channel 101 to flow to the two-position four-way electromagnetic directional valve 18 according to the pressure of the filtering channel 101.
The check valve 17 is located in the middle of the pipe B16, and allows the flow direction to be the two-position four-way electromagnetic directional valve 18 to flow to the filtering passage 101.
And the limit switch D11 controls the right position of the two-position four-way electromagnetic directional valve 18. The limit switch A8 controls the left position of the two-position four-way electromagnetic directional valve 18.
The implementation principle is as follows:
as shown in fig. 1, the direction of the drawing is from right to left, according to the internal circulation cooling mode, the cooling liquid in the motor cavity flows through the filtering channel 101, at this time, the filtering rod a filtering section 201 and the filtering rod B passing section 303 are located in the flow channel of the filtering channel 101, the cooling liquid is continuously filtered by the filtering rod a filtering section 201, the filtering rod B filtering section 301 is located in the medium conveying channel, and the medium conveying channel can flush the filtering rod B filtering section 301. When impurities accumulated in the filtering section 201 of the filter rod A are blocked, the liquid pressure in the filtering channel 101 is increased, the liquid pressure is transmitted to the overflow valve 15, the overflow valve 15 is communicated with the pipeline A14, at the moment, the liquid in the filtering channel 101 flows into the rodless cavity of the piston cylinder 4 through the pipeline A14, the overflow valve 15 and the left position of the two-position four-way electromagnetic directional valve 18, and the pipeline D20 flows into the rodless cavity of the piston cylinder 4. The liquid in the rod cavity flows back to the filtering channel 101 through a pipeline C19, a left position of a two-position four-way electromagnetic directional valve 18, a one-way valve 17 and a pipeline B16. The stress balance of the piston 5 changes, and the piston 5 drives the limit connecting rod B13 to move leftwards. Since the filter rod B3 is in contact with the slide block B6, the filter rod A2 is in contact with the slide block A7. The leftward translation of the slide block B6 and the slide block A7 is converted into the upward translation of the filter rod A2 and the downward translation of the filter rod B3. The piston 5 moves to the leftmost position, the bottom of the filter rod A2 is in contact with the top of the slide block A7, and the whole filter rod A2 is positioned at the highest position. The filter segment 201 of the filter rod A is positioned in the flow cavity of the conveying medium, the conveying medium of the pump continuously washes the filter segment 201 of the filter rod A, and the filter rod A is positioned in the filter channel 101 through the segment 203. The bottom of the filter rod B3 is contacted with the bottom of the sliding block B6, and the filter rod B3 is integrally positioned at the lowest position. A filter rod B filter segment 301 is located in the filter channel 101. The flow in the filtration passage 101 is restored, the pressure becomes small, and the relief valve 15 is closed. Meanwhile, the limit switch C10 is in contact with the limit switch D11, the limit switch D11 gives a signal to the right position of the two-position four-way electromagnetic directional valve 18, and the two-position four-way electromagnetic directional valve 18 is switched to the right position to work.
As shown in fig. 2, when the impurity accumulated in the filtering section 301 of the filter rod B blocks up to cause the liquid pressure in the filtering channel 101 to rise, the liquid pressure is transmitted to the overflow valve 15, the overflow valve 15 is communicated with the pipeline a14, and at this time, the liquid in the filtering channel 101 flows into the rod cavity of the piston cylinder 4 through the pipeline a14, the overflow valve 15, the right position of the two-position four-way electromagnetic directional valve 18 and the pipeline C19. The liquid in the rodless cavity flows back to the filtering channel 101 through a pipeline D20, a right position of the two-position four-way electromagnetic directional valve 18, the one-way valve 17 and a pipeline B16. The stress balance of the piston cylinder 4 changes, and the piston 5 drives the limit connecting rod B13 to move rightwards. Since the filter rod B3 is in contact with the slide B6, the filter rod A2 is in contact with the slide A7. The rightward translation of the slide block B6 and the slide block A7 is converted into the downward translation of the filter rod A2 and the upward translation of the filter rod B3. The piston 5 moves to the rightmost end position, the bottom of the filter rod A2 is in contact with the bottom of the sliding block A7, and the filter rod A2 is integrally located at the lowest position. The bottom of the filter rod B3 is contacted with the top of the sliding block B6, and the whole filter rod B3 is positioned at the lowest position. The filter segment 301 of the filter rod B is positioned in the flow cavity of the conveying medium, the conveying medium of the pump continuously washes the filter segment 301 of the filter rod B, and the filter rod B passing segment 303 is positioned in the filter channel 101. The flow in the filtration passage 101 is restored, the pressure becomes small, and the relief valve 15 is closed. Meanwhile, the limit switch A8 is in contact with the limit switch B9, the limit switch A8 sends a signal to the left position of the two-position four-way electromagnetic directional valve 18, and the two-position four-way electromagnetic directional valve 18 is switched to the left position to work.
The second embodiment:
the embodiment provides a wet motor, which comprises an automatic filtering structure inside the motor according to the first embodiment, and is specifically installed as shown in fig. 4, and is disposed beside a bearing cover 22 and a bearing cover hole 2201, and the bearing cover hole 2201 is communicated with a filtering channel 101.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the invention, "plurality" means two or more unless explicitly specifically defined otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like is intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims (9)

1. An automatic filtering structure in a motor is characterized by comprising a filter shell, a filter cavity and a filter, wherein the filter shell is arranged on the inner side of the inner wall of the motor, is provided with a through hole filtering channel and is provided with a filter cavity;
the filter shell is at least provided with a filter hole A and a filter hole B which penetrate through the through hole filtering channel in the vertical direction, two ends of the filter hole A and the filter hole B are respectively connected with a medium conveying channel of the motor and the filter cavity, and a filter rod A and a filter rod B are respectively connected in the filter hole A and the filter hole B in a sliding manner;
the filter stick A and the filter stick B at least comprise a filtering section and a passing section which are distributed up and down;
the filter cavity is at least internally provided with a piston cylinder, a piston cylinder driving mechanism, a limit connecting rod B connected with a piston of the piston cylinder, and a slide block A and a slide block B which are arranged on the limit connecting rod B;
the filter rod A is in contact fit with the sliding block A, and the filter rod B is in contact fit with the sliding block B, so that the horizontal movement of the sliding block A and the sliding block B can be converted into the vertical movement of the filter rod A and the filter rod B, and the passing section or the filtering section of the filter rod A or the filter rod B is positioned in the flow channel of the filtering channel;
the sliding block A is matched with the sliding block B and can move along with the limiting connecting rod B, so that the state that the filtering section of the filtering rod A and the filtering section of the filtering rod B are positioned in the filtering channel flow passage is switched with the state that the filtering section of the filtering rod A and the filtering section of the filtering rod B are positioned in the filtering channel flow passage;
one end of the piston driving mechanism is connected with the filtering channel, and the other end of the piston driving mechanism is connected with the piston cylinder and used for driving the piston to drive the limiting connecting rod to move according to the pressure of the filtering channel.
2. The automatic filtering structure inside an electric motor according to claim 1, characterized in that said piston cylinder is divided into a rod chamber and a rodless chamber by a piston;
the piston cylinder driving mechanism comprises an overflow valve, a two-position four-way electromagnetic directional valve, a one-way valve, a pipeline A, a pipeline B, a pipeline C and a pipeline D;
the pipeline A is communicated with the filtering channel and the two-position four-way electromagnetic reversing valve, the pipeline B is communicated with the filtering channel and the two-position four-way electromagnetic reversing valve, the pipeline C is communicated with the two-position four-way electromagnetic reversing valve and a piston cylinder rod cavity, and the pipeline D is communicated with the two-position four-way electromagnetic reversing valve and a piston cylinder rod-free cavity;
when the two-position four-way electromagnetic directional valve is in the left position, the pipeline A is communicated with the pipeline D, and the pipeline B is communicated with the pipeline C;
when the two-position four-way electromagnetic directional valve is at the right position, the pipeline A is communicated with the pipeline C, and the pipeline B is communicated with the pipeline D;
the overflow valve is positioned in the middle of the pipeline A, and the pressure control path is the pressure of the filtering channel;
the one-way valve is positioned in the middle of the pipeline B and allows the flow direction to flow to the filtering channel from the two-position four-way electromagnetic directional valve;
the limiting connecting rod B is also provided with a limiting switch B and a limiting switch C;
the filter cavity is at least internally provided with a limit switch A matched with the limit switch B and a limit switch D matched with the limit switch C;
the limit switch D controls the right position of the two-position four-way electromagnetic directional valve;
the limit switch A controls the left position of the two-position four-way electromagnetic directional valve.
3. The automatic filtering structure inside the motor according to claim 2, wherein the piston cylinder is mounted on the bottom side of the filter cavity through a fastener, and the piston is connected with the limiting connecting rod B through a fastener.
4. The automatic filtering structure inside the motor according to claim 2, wherein the limit switch D is fixed on the inner wall of the filter housing B, and the limit switch a is fixed on the inner wall of the filter housing B through a limit connecting rod a.
5. The automatic filtering structure inside the motor according to claim 1, wherein the sections of the sliding blocks B and a are triangular.
6. The automatic filtering structure inside an electric machine according to claim 1, characterized in that said filter housing is assembled by a filter housing a and a filter housing B.
7. The automatic filtering structure inside the motor according to claim 1, wherein the filter rod A and the filter rod B comprise a filtering section, a blocking section and a passing section from top to bottom.
8. The structure of claim 7, wherein the filter section, the blocking section and the passing section have the same height and the same thickness as the outer diameter of the filter channel and the inner wall of the motor.
9. A wet electric machine, characterized in that it comprises an automatic filtering structure inside the machine according to any one of claims 1-8.
CN202211226635.4A 2022-10-09 2022-10-09 Inside automatic filtration structure and motor of motor Active CN115414717B (en)

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Application publication date: 20221202

Assignee: Hanzhong (Nanjing) Technology Co.,Ltd.

Assignor: NANJING INSTITUTE OF TECHNOLOGY

Contract record no.: X2024980000528

Denomination of invention: An automatic filtering structure inside the motor and the motor

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Record date: 20240112