CN111156284A - Anti-pulling small-displacement mechanical shock isolation device for shock-proof protection of knob insulator type electrical equipment - Google Patents

Anti-pulling small-displacement mechanical shock isolation device for shock-proof protection of knob insulator type electrical equipment Download PDF

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Publication number
CN111156284A
CN111156284A CN202010136943.2A CN202010136943A CN111156284A CN 111156284 A CN111156284 A CN 111156284A CN 202010136943 A CN202010136943 A CN 202010136943A CN 111156284 A CN111156284 A CN 111156284A
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China
Prior art keywords
sleeve
electrical equipment
type electrical
mass block
insulator type
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Granted
Application number
CN202010136943.2A
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Chinese (zh)
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CN111156284B (en
Inventor
柏文
戴君武
符国晖
周军
李福权
刘忠文
叶敏
王连锋
倪虹妹
王晓欢
李文沛
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Shenzhen Power Supply Planning Design Institute Co ltd
Shenzhen Power Supply Bureau Co Ltd
Institute of Engineering Mechanics China Earthquake Administration
Original Assignee
Shenzhen Power Supply Planning Design Institute Co ltd
Shenzhen Power Supply Bureau Co Ltd
Institute of Engineering Mechanics China Earthquake Administration
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Priority to CN202010136943.2A priority Critical patent/CN111156284B/en
Publication of CN111156284A publication Critical patent/CN111156284A/en
Application granted granted Critical
Publication of CN111156284B publication Critical patent/CN111156284B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/022Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00Vibration-dampers; Shock-absorbers
    • F16F7/10Vibration-dampers; Shock-absorbers using inertia effect
    • F16F7/1005Vibration-dampers; Shock-absorbers using inertia effect characterised by active control of the mass

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

A resistance to plucking small displacement mechanical shock isolation device for knob insulator type electrical equipment antidetonation protection belongs to equipment antidetonation shock insulation technical field. The problem of in the earthquake the ceramic column type electrical equipment produces destruction, seriously influence electric power system operation is solved. The technical points are as follows: the end part of a lower sliding rail is fixed on the ground through a support, two connecting sliding sleeves are slidably mounted on the lower sliding rail, and a first spring is sleeved on the lower sliding rail; the upper support is arranged above the lower sliding rail through a connecting sliding sleeve, and the connecting sliding sleeve is arranged with the upper support in a sliding manner; the mass block is located below the lower sliding rail, a rolling bearing is arranged below the mass block, sliding on the ground is achieved through the rolling bearing, the periphery of the mass block is connected with the upper support through a second spring and a damper, and the knob insulator type electrical equipment is installed on the upper support. The invention realizes excellent shock absorption amplitude and shock absorption stability, the mass block is directly placed on the ground, a larger mass ratio can be realized, and no interference to the equipment is ensured.

Description

Anti-pulling small-displacement mechanical shock isolation device for shock-proof protection of knob insulator type electrical equipment
Technical Field
The invention relates to a mechanical shock isolation device for electrical equipment shock resistance protection, in particular to an anti-pulling small-displacement mechanical shock isolation device for knob insulator type electrical equipment shock resistance protection, and belongs to the technical field of equipment shock resistance and shock isolation.
Background
Earthquake disasters are sudden and destructive and seriously threaten the safety of human life and property. The porcelain column type electrical equipment is widely applied to an electric power system, along with the development of the power industry, the grade of the power transmission and transformation equipment is higher and higher, the high-voltage electrical equipment, particularly the ultrahigh-voltage direct-current power transmission and transformation equipment, is higher and higher in height, fine and flexible, higher and higher in quality, and higher in requirement on the anti-seismic performance of the high-voltage electrical equipment. The shock damage of the knob insulator type electrical equipment in the past strong earthquake at home and abroad is very serious, the operation of an electric power system is seriously influenced, and the normal work of the knob insulator type electrical equipment under the action of the earthquake is ensured, so that the safety operation of the electric power system is guaranteed.
At present, a good measure for enhancing the shock resistance of the porcelain column type electrical equipment is lacked. Two features of the knob-type electrical device contribute to this phenomenon. First, the requirement for the insulating function of the equipment makes many shock absorbing means widely used in the civil engineering field unusable for knob insulator type electrical equipment. Secondly, there is the wire between the equipment and leads to linking, and this makes traditional shock insulation technique often inconvenient application because shock insulation probably leads to the relative displacement increase between adjacent equipment under some circumstances for the wire tensioning leads to equipment to destroy.
The invention aims to provide a mechanical damping device which can resist drawing and is provided with a damping stabilizer, and the mechanical damping device is particularly suitable for high-aspect-ratio equipment with limitation on horizontal displacement.
Disclosure of Invention
The following presents a simplified summary of the invention in order to provide a basic understanding of some aspects of the invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to determine the key or critical elements of the present invention, nor is it intended to limit the scope of the present invention. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.
In view of the above, the invention provides an anti-pulling small-displacement mechanical shock isolation device for shock protection of knob insulator type electrical equipment, so as to at least solve the problem that the knob insulator type electrical equipment is damaged in an earthquake and the operation of a power system is seriously influenced.
In order to achieve the purpose, the invention adopts the following technical scheme:
the anti-pulling small-displacement mechanical shock isolation device for shock resistance protection of the knob insulator type electrical equipment comprises a pair of lower sliding rails, a connecting sliding sleeve, an upper support, a mass block, a support, a first spring, a second spring and a damper; the end parts of the pair of lower sliding rails are fixed on the ground through the support, two connecting sliding sleeves are arranged on each lower sliding rail in a sliding mode, and the first springs are sleeved on the lower sliding rails and located between the connecting sliding sleeves and the support; the upper support is arranged above the lower sliding rail through a connecting sliding sleeve, and the connecting sliding sleeve is arranged with the upper support in a sliding manner; the mass block is located below the lower sliding rail, a rolling bearing is arranged below the mass block, sliding on the ground is achieved through the rolling bearing, the periphery of the mass block is connected with the upper support through a second spring and a damper, and the transformer substation knob insulator type electrical equipment is installed on the upper support.
Further: the upper support comprises a cross support, an upper slide rail, a slide rail fixing seat and a third spring; the pair of upper slide rails and the pair of lower slide rails are perpendicular to each other, the end portion of each upper slide rail is fixedly installed with the cross-shaped support through a slide rail fixing seat, the connecting slide sleeve is sleeved on the upper slide rail, and the third spring is sleeved on the upper slide rail and located between the connecting slide sleeve and the slide rail fixing seat. So set up, ensure that upper portion support etc. can follow the slide rail direction and slide, its rigidity can cooperate the third spring to confirm, in addition, ensure that upper portion support has the resistance to plucking ability, when the upper load produced the moment of flexure that topples, upper portion support can not topple.
Further: the connecting sliding sleeve comprises an upper sleeve, a lower sleeve and a connecting part used for connecting the upper sleeve and the lower sleeve, the axis of the upper sleeve is perpendicular to the axis of the lower sleeve, the lower sleeve is sleeved on the lower sliding rail, and the upper sleeve is sleeved on the upper sliding rail. So set up, guarantee that the device can be in two directions free motion of mutually perpendicular, simultaneously, the effective drawknot between the upper and lower support is guaranteed in muffjoint, ensures the antidumping ability of device.
Further: four second springs and dampers are installed on the periphery of the mass block, the second springs are sleeved on the dampers, and the outer ends of the dampers are fixed at the end parts of the cross-shaped support through connecting rods. So set up, can realize rigidity and damping control to the steady system of quality.
Further: the mass block is a cylindrical mass block. With this arrangement, the space occupied in the horizontal direction can be reduced while achieving as large a mass as possible.
Further: the lower slide rail and the upper slide rail are both made of circular steel tubes. So set up, ensure and connect effective cooperation and connection between the sliding sleeve to realize resistance to plucking.
Further: and the transformer substation knob insulator type electrical equipment is arranged at the central position of the cross bracket of the upper bracket. So set up, the structure is more stable, realizes the shock insulation effect of device.
Further: linear bearings are embedded in the upper sleeve and the lower sleeve. So set up, convenient slip.
The invention achieves the following effects:
the invention realizes excellent shock absorption amplitude and shock absorption stability, the mass block is directly placed on the ground, a larger mass ratio can be realized, and no interference to the equipment is ensured. Has the following effects:
(1) the upper support and the ground are flexibly connected in the horizontal direction through the shock isolation device, and shock isolation is achieved.
(2) Meanwhile, the mass stabilizer based on the tuned mass damper principle can convert part of energy transmitted to the upper support into kinetic energy of the mass block, reduce the vibration of the controlled equipment and further protect the controlled upper equipment.
(3) Whether the mass stabilizing block can realize the function or not is that whether the mass stabilizing block can realize resonance or not, which is directly related to the mass of the controlled equipment and the rigidity of a spring of the shock isolation device, the self mass of the mass stabilizer needs to be adjusted, and the rigidity of the spring connected with the mass stabilizer is also needed, so that the natural vibration frequency of a mass stabilizer system and the frequency of a shock isolation layer realize resonance.
Drawings
FIG. 1 is an isometric view of an anti-pulling small displacement mechanical shock isolation device for shock protection of knob insulator type electrical equipment of the present invention;
FIG. 2 is a top view of the anti-pulling small-displacement mechanical shock isolation device for shock protection of knob insulator type electrical equipment of the present invention;
FIG. 3 is a front view of the anti-pulling small displacement mechanical shock isolation apparatus for shock protection of knob insulator type electrical equipment of the present invention;
FIG. 4 is an exploded view of the anti-pulling small-displacement mechanical shock isolation device for shock protection of knob insulator type electrical equipment according to the present invention;
FIG. 5 is an overall structural view of the connecting sleeve of the present invention;
in the figure: 1-lower slide rail; 2-connecting the sliding sleeve; 3-upper support; 4-a mass block; 5-support; 6-a first spring; 7-a second spring; 8-a damper; 9-a connecting rod; 21-an upper sleeve; 22-a lower sleeve; 23-a connecting part; 31-a cross brace; 32-upper slide rail; 33-a slide rail fixing seat; 34-a third spring; a-ground.
Detailed Description
Exemplary embodiments of the present invention will be described hereinafter with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in the specification. It will of course be appreciated that in the development of any such actual embodiment, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which will vary from one implementation to another. Moreover, it will be appreciated that such a development effort might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "inside and outside" in the present invention means that the direction pointing to the inside of the device is inside and vice versa with respect to the device itself, and is not a specific limitation of the mechanism of the apparatus of the present invention.
The meaning of "left and right" in the present invention means that when the reader is facing the drawings, the left side of the reader is left, and the right side of the reader is right, and is not a specific limitation on the mechanism of the apparatus of the present invention.
The term "connected" as used herein may mean either a direct connection between the components or an indirect connection between the components via other components.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the device structures and/or processing steps closely related to the solution according to the present invention are shown in the drawings, and other details not so relevant to the present invention are omitted. Preferred embodiments of the present invention are explained in detail below with reference to the accompanying drawings.
Example (b): as shown in fig. 1 to 5, the anti-pulling small-displacement mechanical shock isolation device for shock protection of knob insulator type electrical equipment in this embodiment includes a pair of lower slide rails 1, a connecting sliding sleeve 2, an upper bracket 3, a mass block 4, a support 5, a first spring 6, a second spring 7, a damper 8 and a connecting rod 9; wherein, the upper bracket 3 comprises a cross bracket 31, a pair of upper slide rails 32, a slide rail fixing seat 33 and a third spring 34; the connecting sliding sleeve 2 comprises an upper sleeve 21, a lower sleeve 22 and a connecting part 23 for connecting the upper sleeve 21 and the lower sleeve 22, wherein the axis of the upper sleeve 21 is perpendicular to the axis of the lower sleeve 22;
the end parts of the pair of lower sliding rails 1 are fixed on the ground A through the support 5 and do not move relative to the ground; each lower sliding rail 1 is provided with two connecting sliding sleeves 2 in a sliding manner, the lower sleeves 22 of the connecting sliding sleeves 2 are sleeved on the lower sliding rails 1 in a sliding manner, and the first springs 6 are sleeved on the lower sliding rails 1 and are positioned between the connecting sliding sleeves 2 and the support 5; the upper support 3 is arranged above the lower sliding rail 1 through a connecting sliding sleeve 2, and the connecting sliding sleeve 2 and the upper support 3 are arranged in a sliding manner; specifically, the method comprises the following steps: the pair of upper slide rails 32 and the pair of lower slide rails 1 are arranged perpendicular to each other, the end portions of the upper slide rails 32 are fixedly mounted with the cross-shaped support 31 through slide rail fixing seats 33, the connecting sliding sleeve 2 is sleeved on the upper slide rails 32, the third spring 34 is sleeved on the upper slide rails 32 and is positioned between the connecting sliding sleeve 2 and the slide rail fixing seats 33, and the upper sleeve 21 of the connecting sliding sleeve 2 is sleeved on the upper slide rails 32;
the mass block 4 is positioned below the lower sliding rail 1, a rolling bearing is arranged below the mass block 4 and is directly placed on the ground A, sliding on the ground A is realized through the rolling bearing, four second springs 7 and a damper 8 are installed on the periphery of the mass block 4, the second springs are sleeved on the damper, and the outer end of the damper is fixed at the end part of the cross-shaped support 31 through a connecting rod 9; the transformer substation knob insulator type electrical equipment is mounted on the center position of the cross bracket 31 of the upper bracket 3.
More specifically: the lower slide rail 1 and the upper slide rail 32 are both made of round steel tubes.
More specifically: the mass 4 is a cylindrical mass.
It is to be emphasized that: firstly, in this embodiment, the lower slide rail 1 is directly fixed with the ground a through four supports 5, and does not move relatively. Second, the upper bracket 3 can slide horizontally in any direction in this embodiment. Third, in this embodiment, the rolling bearing is arranged below the mass block 4, and the rolling bearing is directly placed on the ground a, can slide on the ground a, and is connected with the upper support through the spring and the damper, and the mass block is only connected with the upper support in the horizontal direction. Third, the first spring 6 and the third spring 34 in this embodiment are used to control the stiffness of the upper bracket 3 in its direction.
The above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. An anti-pulling small-displacement mechanical shock isolation device for shock resistance protection of knob insulator type electrical equipment is characterized by comprising a pair of lower sliding rails (1), a connecting sliding sleeve (2), an upper support (3), a mass block (4), a support (5), a first spring (6), a second spring (7) and a damper (8); the end parts of the pair of lower sliding rails (1) are fixed on the ground through supports (5), two connecting sliding sleeves (2) are slidably mounted on each lower sliding rail (1), and the first spring (6) is sleeved on the lower sliding rails (1) and is positioned between the connecting sliding sleeves (2) and the supports (5); the upper support (3) is arranged above the lower sliding rail (1) through a connecting sliding sleeve (2), and the connecting sliding sleeve (2) is arranged with the upper support (3) in a sliding manner; the mass block (4) is located below the lower sliding rail (1), a rolling bearing is arranged below the mass block (4), the mass block slides on the ground through the rolling bearing, the periphery of the mass block (4) is connected with the upper support (3) through a second spring (7) and a damper (8), and the transformer substation porcelain column type electrical equipment is installed on the upper support (3).
2. The anti-pulling small-displacement mechanical shock isolation device for shock protection of knob insulator type electrical equipment according to claim 1, wherein: the upper support (3) comprises a cross support (31), an upper pair of slide rails (32), a slide rail fixing seat (33) and a third spring (34); a pair of upper slide rails (32) and a pair of lower slide rails (1) are perpendicular to each other, the end parts of the upper slide rails (32) are fixedly installed with a cross-shaped support (31) through slide rail fixing seats (33), a connecting slide sleeve (2) is sleeved on the upper slide rails (32), and a third spring (34) is sleeved on the upper slide rails (32) and located between the connecting slide sleeve (2) and the slide rail fixing seats (33).
3. The anti-pulling small-displacement mechanical shock isolation device for shock protection of knob insulator type electrical equipment according to claim 1 or 2, wherein: the connecting sliding sleeve (2) comprises an upper sleeve (21), a lower sleeve (22) and a connecting part (23) used for connecting the upper sleeve (21) and the lower sleeve (22), the axis of the upper sleeve (21) and the axis of the lower sleeve (22) are perpendicular to each other, the lower sleeve (22) is sleeved on the lower sliding rail (1), and the upper sleeve (21) is sleeved on the upper sliding rail (32).
4. The anti-pulling small-displacement mechanical shock isolation device for shock protection of knob insulator type electrical equipment according to claim 3, wherein: four second springs (7) and dampers (8) are installed to the periphery of the mass block (4), the second springs (7) are sleeved on the dampers (8), and the outer ends of the dampers (8) are fixed to the end portions of the cross-shaped support (31) through connecting rods 9.
5. The anti-pulling small-displacement mechanical shock isolation device for shock protection of knob insulator type electrical equipment according to claim 1, wherein: the mass block (4) is a cylindrical mass block.
6. The anti-pulling small-displacement mechanical shock isolation device for shock protection of knob insulator type electrical equipment according to claim 5, wherein: the lower slide rail (1) and the upper slide rail (32) are both made of round steel tubes.
7. The anti-pulling small-displacement mechanical shock isolation device for shock protection of knob insulator type electrical equipment as claimed in claim 6, wherein: and the transformer substation knob insulator type electrical equipment is arranged at the central position of the cross bracket (31) of the upper bracket (3).
8. The anti-pulling small-displacement mechanical shock isolation device for shock protection of knob insulator type electrical equipment as claimed in claim 3, wherein linear bearings are embedded in the upper sleeve (21) and the lower sleeve (22).
CN202010136943.2A 2020-03-02 2020-03-02 Anti-pulling small-displacement mechanical shock isolation device for shock-proof protection of knob insulator type electrical equipment Active CN111156284B (en)

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CN105650202A (en) * 2014-11-20 2016-06-08 陕西子竹电子有限公司 Balance mechanism
CN108194776A (en) * 2017-12-28 2018-06-22 合肥小小作为信息科技有限公司 A kind of electronic product installs detection supporter
CN108311379A (en) * 2018-05-09 2018-07-24 新乡市东振机械制造有限公司 A kind of direct discharging screen pedestal having shock-absorbing function
CN208295035U (en) * 2018-02-27 2018-12-28 吕国营 A kind of weaving loom mechanical damping damping base
CN109243775A (en) * 2018-10-27 2019-01-18 单士营 A kind of power transformer pedestal
CN208565972U (en) * 2018-05-25 2019-03-01 无锡鑫润纺织机械有限公司 A kind of moveable frame of textile machine damping device
CN109751361A (en) * 2019-01-25 2019-05-14 哈尔滨工业大学 A kind of negative stiffness element and negative stiffness characteristic generation method and application with equilbrium position self-regulation ability
CN209146216U (en) * 2018-10-24 2019-07-23 苏州长菱测试技术有限公司 A kind of ultralow frequency big displacement passive vibration isolation device
US20190335605A1 (en) * 2017-09-15 2019-10-31 Zhengzhou Yunhai Information Technology Co., Ltd. Multi-layer expansion card buffer bracket
CN110513434A (en) * 2019-09-20 2019-11-29 四川省龙丹纳科技有限公司 A kind of orthogonal guide tracked earthquake isolating equipment and its design method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101302995A (en) * 2008-05-21 2008-11-12 三一电气有限责任公司 Tuning quality damper vibration damping control device for blower fan
CN204062400U (en) * 2014-08-13 2014-12-31 张欢 A kind of universal projector for real object expands underframe
CN104315079A (en) * 2014-09-18 2015-01-28 中国地震局工程力学研究所 Three-way shock insulation pedestal with spring damp guide rod device
CN105650202A (en) * 2014-11-20 2016-06-08 陕西子竹电子有限公司 Balance mechanism
CN205208058U (en) * 2015-12-17 2016-05-04 中国地震局工程力学研究所 Take knob insulator type electrical equipment isolation bearing of resistance to plucking device
US20190335605A1 (en) * 2017-09-15 2019-10-31 Zhengzhou Yunhai Information Technology Co., Ltd. Multi-layer expansion card buffer bracket
CN108194776A (en) * 2017-12-28 2018-06-22 合肥小小作为信息科技有限公司 A kind of electronic product installs detection supporter
CN208295035U (en) * 2018-02-27 2018-12-28 吕国营 A kind of weaving loom mechanical damping damping base
CN108311379A (en) * 2018-05-09 2018-07-24 新乡市东振机械制造有限公司 A kind of direct discharging screen pedestal having shock-absorbing function
CN208565972U (en) * 2018-05-25 2019-03-01 无锡鑫润纺织机械有限公司 A kind of moveable frame of textile machine damping device
CN209146216U (en) * 2018-10-24 2019-07-23 苏州长菱测试技术有限公司 A kind of ultralow frequency big displacement passive vibration isolation device
CN109243775A (en) * 2018-10-27 2019-01-18 单士营 A kind of power transformer pedestal
CN109751361A (en) * 2019-01-25 2019-05-14 哈尔滨工业大学 A kind of negative stiffness element and negative stiffness characteristic generation method and application with equilbrium position self-regulation ability
CN110513434A (en) * 2019-09-20 2019-11-29 四川省龙丹纳科技有限公司 A kind of orthogonal guide tracked earthquake isolating equipment and its design method

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