CN113726081A - Explosion-proof motor damping base structure with auxiliary heat dissipation function - Google Patents

Explosion-proof motor damping base structure with auxiliary heat dissipation function Download PDF

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Publication number
CN113726081A
CN113726081A CN202110967635.9A CN202110967635A CN113726081A CN 113726081 A CN113726081 A CN 113726081A CN 202110967635 A CN202110967635 A CN 202110967635A CN 113726081 A CN113726081 A CN 113726081A
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CN
China
Prior art keywords
explosion
heat dissipation
proof motor
outer shaft
seat
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202110967635.9A
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Chinese (zh)
Inventor
陈会涛
马小强
陈绍鹏
李光喜
杨立权
何佳佳
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Pingdingshan University
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Pingdingshan University
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Filing date
Publication date
Application filed by Pingdingshan University filed Critical Pingdingshan University
Priority to CN202110967635.9A priority Critical patent/CN113726081A/en
Publication of CN113726081A publication Critical patent/CN113726081A/en
Withdrawn legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/24Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/136Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/207Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/02Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The invention discloses an explosion-proof motor damping base structure with auxiliary heat dissipation function, which comprises: a fixed base; the mounting frame is arranged on the lower end face of the fixed base and is provided with a plurality of threaded holes in bilateral symmetry; the positioning and damping assembly is fixed on one side of the upper end face of the fixed base and is used for positioning and clamping one end of the explosion-proof motor; the heat dissipation air exchange assembly is coaxially arranged on one side of the positioning shock absorption assembly, an outer discharge pipe is communicated with the lower portion of the heat dissipation air exchange assembly, and one end of the outer discharge pipe is communicated with an air exchange cavity in the fixed base.

Description

Explosion-proof motor damping base structure with auxiliary heat dissipation function
Technical Field
The invention belongs to the technical field of motor equipment, and particularly relates to an explosion-proof motor damping base structure with an auxiliary heat dissipation function.
Background
The explosion-proof motor is a motor which can be used in flammable and explosive places, and does not generate electric sparks during operation. The explosion-proof motor is mainly used in coal mine, petroleum and natural gas, petrochemical industry and chemical industry. In addition, the method is widely applied to the departments of textile, metallurgy, urban gas, traffic, grain and oil processing, paper making, medicine and the like. Explosion-proof motors are used as main power equipment, and are generally used for driving pumps, fans, compressors, other transmission machines and the like. The existing explosion-proof motor generally has no shock absorption measures, when the explosion-proof motor is installed on equipment such as a fan and a compressor, the generated vibration is large, the explosion-proof motor is easy to resonate with the equipment connected with the explosion-proof motor, meanwhile, the storage of the working heat in the explosion-proof motor is relatively high in long-term work, and if the explosion-proof motor stops working and discharges heat in time, the short circuit and the halt of the motor can be caused, so that the normal working efficiency of the motor is influenced. Therefore, the explosion-proof motor damping base structure with the auxiliary heat dissipation function is provided by the technical personnel in the field, so as to solve the problems in the background technology.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an explosion-proof machine vibration damping mount structure with supplementary heat dissipation function, it includes:
a fixed base;
the mounting frame is arranged on the lower end face of the fixed base and is provided with a plurality of threaded holes in bilateral symmetry;
the positioning and damping assembly is fixed on one side of the upper end face of the fixed base and is used for positioning and clamping one end of the explosion-proof motor;
the heat dissipation air exchange assembly is coaxially arranged on one side of the positioning shock absorption assembly, an outer discharge pipe is communicated with the lower portion of the heat dissipation air exchange assembly, and one end of the outer discharge pipe is communicated with an air exchange cavity in the fixed base.
Further, preferably, the positioning damper assembly includes:
the outer shaft bracket is used for mounting the explosion-proof motor in a sleeved mode;
the hinge shaft rods are arranged in a plurality of groups in a circumferential array, and can be arranged in the outer shaft bracket in a relatively deflected manner;
the elastic ring is coaxially arranged in the outer shaft frame and is in sealed abutting contact with the explosion-proof motor;
the positioning clamping pieces are arranged in one-to-one correspondence with the hinge shaft rods, and one ends of the positioning clamping pieces are abutted and contacted with the hinge shaft rods;
the fixing seat coaxially penetrates through and is fixed on one side of the outer shaft frame, and an inner screw rod is arranged in the fixing seat and can rotate relatively under the meshing action of threads; and
and the top supporting piece is fixedly arranged on the inner screw rod and is abutted and contacted with one end of the hinge shaft rod.
Further, preferably, the method further comprises:
the heat collection seat is coaxially arranged in the outer shaft bracket and is abutted and contacted with the explosion-proof motor;
and the supporting spring is transversely erected between the heat collecting seat and the outer shaft bracket.
Further, as the preferred, a plurality of outer slots are arranged on the circumference of the top support piece and used for protecting the hinge rod corresponding to the limiting clamp.
Further, preferably, the positioning clip includes:
the clamping seat is constructed into an arc structure, and one side of the lower end surface of the clamping seat is provided with a limiting buckle;
the outer shaft sleeve is vertically fixed in the middle of the upper end face of the clamping seat;
the inner branch piece is limited on the outer shaft sleeve in a relatively sliding way, and one end of the inner branch piece is rotatably connected to the hinge rod;
the side springs are symmetrically and obliquely connected between the inner supporting piece and the clamping seat; and
the adjusting shaft is in an oval structure and can be arranged in the clamping seat in a relatively rotating mode and located below the inner supporting piece.
Further, preferably, the heat radiation ventilation unit includes:
the central shaft can be transversely arranged on the outer shaft bracket in a relatively rotating way;
the exhaust pipes are arranged in a circumferential array and are transversely communicated in the outer shaft bracket;
the transmission gear box is arranged in the outer shaft bracket and is used for rotating the central shaft;
the side brackets are symmetrically arranged on the central shaft, and a plurality of flow guide fan blades are obliquely and rotatably arranged on the side brackets; and
and the heat dissipation cavity piece is in fit contact with the explosion-proof motor through the heat collection seat.
Further, as a preferred option, the heat dissipation cavity further includes:
the telescopic guide sleeve is transversely connected to one side of the heat collecting seat;
the heat conduction heads are uniformly distributed, and each heat conduction head is transversely fixed in the telescopic guide sleeve;
and the ventilation pipes are arranged corresponding to the heat conducting heads one by one, and each ventilation pipe transversely penetrates through and is fixed on the heat collecting seat.
Preferably, a negative pressure sleeve is coaxially fixed at one end of the ventilation pipe and is sleeved outside the heat conducting head in a sliding manner.
Compared with the prior art, the invention has the beneficial effects that:
in the invention, the lower end surface of the fixed base is provided with the mounting frame, the device main body is fixed in external equipment through the threaded hole on the mounting frame, the explosion-proof motor is fixedly sleeved through the outer shaft frame, the tail part of the explosion-proof motor is circumferentially clamped by a plurality of circumferentially arranged positioning clamping pieces in mounting and fixing, and the heat dissipation and ventilation assembly is matched to perform ventilation and drainage work on high-heat airflow generated by the tail part of the explosion-proof motor, so that the interior of the explosion-proof motor is prevented from being in an excessively high-temperature working environment for a long time; when the positioning clamp is used for radially positioning the explosion-proof motor, the positioning clamp and the lateral spring are used for shock absorption and protection, so that the external shock under high power is reduced, the service life of the explosion-proof motor is prolonged, and meanwhile, the supporting spring can be matched with the heat collecting seat to absorb shock axially, so that the stability of a main body of the explosion-proof motor is ensured; and the heat dissipation cavity part on the heat collection seat can directly contact with the high-heat part of the explosion-proof motor for heat transfer, so that the heat dissipation efficiency is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the positioning and shock absorbing assembly of the present invention;
FIG. 3 is a schematic view of a positioning clip according to the present invention;
FIG. 4 is a schematic view of a heat dissipation and ventilation assembly according to the present invention;
FIG. 5 is a schematic structural view of a heat dissipation cavity of the present invention;
in the figure: the device comprises a fixed base 1, a mounting rack 2, a positioning shock absorption assembly 3, an outer shaft bracket 301, a hinged shaft rod 302, an elastic ring 303, an inner screw rod 304, a top supporting piece 305, a heat collection seat 306, a supporting spring 307, a heat dissipation air exchange assembly 4, a central shaft 401, a transmission gear box 402, a flow guide fan blade 403, an exhaust pipe 404, an explosion-proof motor 5, an outer exhaust pipe 6, a positioning clamp 7, a clamp seat 701, a limit buckle 702, an outer shaft sleeve 703, an inner supporting piece 704, a lateral spring 705, an adjusting shaft 706, a heat dissipation cavity 8, a telescopic guide sleeve 801, a heat conduction head 802, a ventilation pipe 803 and a negative pressure sleeve 804.
Detailed Description
Referring to fig. 1, in an embodiment of the present invention, an explosion-proof motor damping base structure with an auxiliary heat dissipation function includes:
a fixed base 1;
the mounting rack 2 is arranged on the lower end face of the fixed base 1, and a plurality of threaded holes are symmetrically formed in the mounting rack 2 in the left-right direction; the explosion-proof motor is fixed on external mechanical equipment (not shown in the figure) through mounting frame bolts;
the positioning and damping assembly 3 is fixed on one side of the upper end face of the fixed base 1 and is used for positioning and clamping one end of the explosion-proof motor 5;
heat dissipation air exchange assembly 4, coaxial setting is in one side of location damper assembly 3, heat dissipation air exchange assembly 4's lower intercommunication has outer calandria 6, the one end of outer calandria 6 with set up the chamber of taking a breath in the unable adjustment base 1 is linked together.
In this embodiment, the positioning damper assembly 3 includes:
the outer shaft bracket 301 is used for mounting the explosion-proof motor 5 in a sleeved mode;
the hinge rods 302 are arranged in a plurality of groups in a circumferential array, and each hinge rod 302 can be arranged in the outer shaft bracket 301 in a relatively-deflected manner;
an elastic ring 303, coaxially arranged in the outer shaft bracket 301 and in sealing contact with the explosion-proof motor 5; particularly aiming at a high-heat zone where the tail part of the explosion-proof motor works, in order to prevent the peripheral heat influence caused by the diffusion of heat flow to the periphery, the tail part of the explosion-proof motor is sealed and covered by an elastic ring;
the positioning clamping pieces 7 are arranged in one-to-one correspondence with the hinge rod 302, and one end of each positioning clamping piece 7 is abutted against and contacted with the hinge rod 302;
the fixing seat coaxially penetrates through and is fixed on one side of the outer shaft frame 301, and an inner screw 304 is arranged in the fixing seat and can rotate relatively under the action of thread engagement; and
the top support piece 305 is fixedly arranged on the inner screw 304, the top support piece 305 abuts against and contacts with one end of the hinge rod 302, and the top support piece is controlled to perform directional deflection adjustment through the rotation action of the inner screw, so that the positioning clamp can be clamped or opened and closed, and the explosion-proof motor can be conveniently and quickly mounted and taken out.
As a preferred embodiment, the method further comprises the following steps:
the heat collecting seat 306 is coaxially arranged in the outer shaft bracket 301 and is abutted and contacted with the explosion-proof motor 5;
and the supporting spring 307 is transversely erected between the heat collecting seat 306 and the outer shaft bracket 301, and performs shock absorption and protection on axial vibration generated during the operation of the explosion-proof motor through the elastic action of the spring.
In this embodiment, the top support 305 has a plurality of external slots on its circumference for protecting the hinge rod 302 corresponding to the position-limiting clamp, and as a preferred embodiment of the present invention, the top support has a plurality of external slots with different depths, so as to adjust the radial positioning clamping force of the positioning clamp.
In this embodiment, the positioning clip 7 includes:
the clamp seat 701 is constructed in an arc structure, and one side of the lower end face of the clamp seat 701 is provided with a limit buckle 702; can fix a position the buckle to explosion proof machine's outside screens, prevent that it from producing relative dislocation and leading to explosion proof machine to break away from centre gripping position
The outer shaft sleeve 703 is vertically fixed in the middle of the upper end face of the clamping seat 701;
an inner supporting member 704, which is slidably disposed on the outer sleeve 703, and one end of the inner supporting member 704 is rotatably connected to the hinge rod 302;
a side spring 705 symmetrically and obliquely connected between the inner support 704 and the holder 701; can effectively damp the radial vibration generated by the explosion-proof motor through the elastic action of the side spring, and
adjusting shaft 706 is constructed into oval structure, the setting that adjusting shaft 706 can rotate relatively is in be located in holder 701 interior branch piece 704 below, adjusting shaft are under rotation regulation for the side spring presents the elastic stretching effect of different degrees, thereby the elastic amplitude of control side spring is so that correspond the shock attenuation protection to the explosion-proof machine of low frequency high amplitude, prevents that the organism under its high amplitude vibrations from rocking, influences its normal use work.
In this embodiment, the heat dissipation air exchange assembly 4 includes:
a central shaft 401, which is transversely arranged on the outer shaft bracket 301 in a relatively rotatable manner;
the exhaust pipes 404 are arranged in a plurality of groups in a circumferential array, and the exhaust pipes 404 are transversely communicated in the outer shaft bracket 301; the axial drainage device is used for axially draining heat of a working area of the explosion-proof machine body through the exhaust pipe;
a transmission gear box 402 disposed in the outer shaft bracket 301 for rotating the central shaft 401;
the side brackets are symmetrically arranged on the central shaft 401, and a plurality of guide vanes 403 are obliquely and rotatably arranged on the side brackets; when the guide fan blades rotate under the self-rotation effect and are combined with the axial rotation of the central shaft, airflow vortex is formed in the outer shaft bracket, the working heat flow at the circumferential side of the heat dissipation cover of the explosion-proof motor is conveniently absorbed and discharged, and
and the heat dissipation cavity piece 8 is in fit contact with the explosion-proof motor 5 through the heat collection seat 306.
As a preferred embodiment, the heat dissipation cavity 8 further includes:
the telescopic guide sleeve 801 is transversely connected to one side of the heat collecting seat 306;
a plurality of heat conduction heads 802 are uniformly arranged, and each heat conduction head 802 is transversely fixed in the telescopic guide sleeve 801; the heat conducting head can directly contact a high-heat working area at the tail part of the explosion-proof motor through the telescopic guide sleeve and conduct heat transfer to form an inner radiator;
the ventilation pipes 803 are arranged in one-to-one correspondence to the heat conducting heads 802, and each ventilation pipe 803 transversely penetrates and is fixed on the heat collecting base 306.
In this embodiment, a negative pressure kit 804 is coaxially fixed at one end of the ventilation tube 803, the negative pressure kit 804 is slidably sleeved outside the heat conducting head 802, and axial vibration generated when the explosion-proof motor works is utilized, so that the negative pressure kit and the heat conducting head can relatively slide, and drainage negative pressure is formed in a relative gap, thereby facilitating heat dissipation, absorption and removal of heat in the heat conducting head, and facilitating completion of heat dissipation work on a high-heat area at the tail of the explosion-proof motor at the first time.
Specifically, explosion-proof motor is through in the outer pedestal of card income under local deflection control effect, the rotation effect control back-up spare through interior screw rod is adjusted the hinge pole deflection, make the location folder can fix a position the centre gripping to explosion-proof motor, at this moment, the thermal-arrest seat can support the contact with explosion-proof motor mutually through the supporting spring elastic force, carry out axial and radial shock attenuation protection work to explosion-proof motor by the elastic force of supporting spring and side spring respectively, simultaneously, heat dissipation ventilation assembly can absorb the discharge with the thermal current that its work produced, and, heat dissipation chamber spare can the explosion-proof direct contact explosion-proof motor's of direct contact afterbody high heat work area, and the heat transfer, form interior radiator, thereby improve the radiating effect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent substitutions or changes according to the technical solution and the inventive concept of the present invention should be covered by the scope of the present invention.

Claims (8)

1. The utility model provides an explosion-proof machine vibration damping mount structure with supplementary heat dissipation function which characterized in that: it includes:
a fixed base (1);
the mounting rack (2) is arranged on the lower end face of the fixed base (1), and a plurality of threaded holes are symmetrically formed in the mounting rack (2) in the left-right direction;
the positioning and damping assembly (3) is fixed on one side of the upper end face of the fixed base (1) and is used for positioning and clamping one end of the explosion-proof motor (5);
heat dissipation subassembly (4) of taking a breath, coaxial setting is in one side of location damper (3), the lower intercommunication of subassembly (4) of taking a breath of the heat dissipation has outer calandria (6), the one end and the setting of outer calandria (6) are in the chamber of taking a breath in fixed baseplate (1) is linked together.
2. The shock absorption base structure of the explosion-proof motor with the auxiliary heat dissipation function as recited in claim 1, wherein: the positioning shock-absorbing assembly (3) comprises:
the outer shaft bracket (301) is used for mounting the explosion-proof motor (5) in a sleeved mode;
the hinge rod (302) is arranged in a plurality of groups in a circumferential array, and each hinge rod (302) can be arranged in the outer shaft bracket (301) in a relatively-deflected mode;
the elastic ring (303) is coaxially arranged in the outer shaft frame (301) and is in sealing abutting contact with the explosion-proof motor (5);
the positioning clamping pieces (7) are arranged in one-to-one correspondence with the hinge rod (302), and one end of each positioning clamping piece (7) is abutted against and contacted with the hinge rod (302);
the fixing seat coaxially penetrates through and is fixed on one side of the outer shaft frame (301), and an inner screw (304) is arranged in the fixing seat and can rotate relatively under the action of thread engagement; and
the top support piece (305) is fixedly arranged on the inner screw rod (304), and the top support piece (305) is in abutting contact with one end of the hinge rod (302).
3. The shock absorption base structure of the explosion-proof motor with the auxiliary heat dissipation function as claimed in claim 2, wherein: further comprising:
the heat collecting seat (306) is coaxially arranged in the outer shaft bracket (301) and is abutted and contacted with the explosion-proof motor (5);
and the supporting spring (307) is transversely erected between the heat collecting seat (306) and the outer shaft bracket (301).
4. The shock absorption base structure of the explosion-proof motor with the auxiliary heat dissipation function as recited in claim 3, wherein: the upper circumference of the top support piece (305) is provided with a plurality of outer slots used for protecting the hinge rod (302) corresponding to the limiting clamp.
5. The shock absorption base structure of the explosion-proof motor with the auxiliary heat dissipation function as recited in claim 3, wherein: the positioning clip (7) comprises:
the clamp seat (701) is constructed into an arc-shaped structure, and one side of the lower end face of the clamp seat (701) is provided with a limit buckle (702);
the outer shaft sleeve (703) is vertically fixed in the middle of the upper end face of the clamping seat (701);
the inner supporting piece (704) is limited and arranged on the outer shaft sleeve (703) in a relatively sliding mode, and one end of the inner supporting piece (704) is rotatably connected to the hinge rod (302);
a side spring (705) symmetrically and obliquely connected between the inner support (704) and the clamping seat (701); and
an adjusting shaft (706) configured in an oval structure, wherein the adjusting shaft (706) is rotatably arranged in the clamping seat (701) below the inner support (704).
6. The shock absorption base structure of the explosion-proof motor with the auxiliary heat dissipation function as recited in claim 5, wherein: the heat dissipation air exchange assembly (4) comprises:
the central shaft (401) is transversely arranged on the outer shaft bracket (301) in a relatively rotatable manner;
the exhaust pipes (404) are arranged in a plurality of groups in a circumferential array, and the exhaust pipes (404) are transversely communicated in the outer shaft bracket (301);
a transmission gear box (402) disposed within the outer shaft mount (301) for rotating the central shaft (401);
the side brackets are symmetrically arranged on the central shaft (401), and a plurality of guide vanes (403) are obliquely and rotatably arranged on the side brackets; and
and the heat dissipation cavity piece (8) is in fit contact with the explosion-proof motor (5) through a heat collection seat (306).
7. The shock absorption base structure of the explosion-proof motor with the auxiliary heat dissipation function as claimed in claim 2, wherein: the heat dissipation cavity (8) further comprises:
the telescopic guide sleeve (801) is transversely connected to one side of the heat collecting seat (306);
the heat conducting heads (802) are uniformly distributed, and each heat conducting head (802) is transversely fixed in the telescopic guide sleeve (801);
and the ventilation pipes (803) are arranged in one-to-one correspondence to the heat conduction heads (802), and each ventilation pipe (803) transversely penetrates and is fixed on the heat collection seat (306).
8. The shock absorption base structure of the explosion-proof motor with the auxiliary heat dissipation function as recited in claim 7, wherein: one end of the ventilation pipe (803) is also coaxially fixed with a negative pressure sleeve (804), and the negative pressure sleeve (804) is sleeved outside the heat conducting head (802) in a sliding manner.
CN202110967635.9A 2021-08-23 2021-08-23 Explosion-proof motor damping base structure with auxiliary heat dissipation function Withdrawn CN113726081A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110967635.9A CN113726081A (en) 2021-08-23 2021-08-23 Explosion-proof motor damping base structure with auxiliary heat dissipation function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110967635.9A CN113726081A (en) 2021-08-23 2021-08-23 Explosion-proof motor damping base structure with auxiliary heat dissipation function

Publications (1)

Publication Number Publication Date
CN113726081A true CN113726081A (en) 2021-11-30

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Application Number Title Priority Date Filing Date
CN202110967635.9A Withdrawn CN113726081A (en) 2021-08-23 2021-08-23 Explosion-proof motor damping base structure with auxiliary heat dissipation function

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114352679A (en) * 2021-12-20 2022-04-15 应急管理部国家自然灾害防治研究院 Marine structure vibration damping device for preventing common excitation of waves, ocean currents and earthquakes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114352679A (en) * 2021-12-20 2022-04-15 应急管理部国家自然灾害防治研究院 Marine structure vibration damping device for preventing common excitation of waves, ocean currents and earthquakes
CN114352679B (en) * 2021-12-20 2023-06-13 应急管理部国家自然灾害防治研究院 Marine structure vibration damper for preventing wave, ocean current and earthquake from being excited together

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Application publication date: 20211130