CN120009064A - Insulator tension test equipment - Google Patents
Insulator tension test equipment Download PDFInfo
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- CN120009064A CN120009064A CN202510311748.1A CN202510311748A CN120009064A CN 120009064 A CN120009064 A CN 120009064A CN 202510311748 A CN202510311748 A CN 202510311748A CN 120009064 A CN120009064 A CN 120009064A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0244—Tests performed "in situ" or after "in situ" use
- G01N2203/0246—Special simulation of "in situ" conditions, scale models or dummies
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
本发明公开了一种绝缘子拉力测试设备，包括放置架以及分别设置于放置架两端的第一连接部和第二连接部，放置架上设置有驱动部件，第二连接部上设置有测试部件，测试部件包括沿着放置架长度方向设置的筒体，筒体内部设有与筒体滑动密封配合的活塞，筒体内还设置有拉杆，拉杆一端与活塞连接，另一端沿着靠近第一连接部方向延伸穿出筒体，并与筒体滑动密封配合，拉杆远离活塞一端与绝缘子可拆卸连接，筒体外侧壁开设有与筒体内部相通的释放孔，释放孔位于活塞靠近拉杆一侧，筒体远离第一连接部一端设置有通气口，通气口上设置有阀门。本发明的目的在于解决传统拉力测试设备在压力急剧下降情境下对绝缘子耐受能力评估不足的技术问题。
The present invention discloses an insulator tension test device, comprising a placement frame and a first connection part and a second connection part respectively arranged at both ends of the placement frame, a driving component is arranged on the placement frame, a test component is arranged on the second connection part, the test component comprises a cylinder arranged along the length direction of the placement frame, a piston is arranged inside the cylinder and cooperates with the cylinder in a sliding seal, a pull rod is also arranged inside the cylinder, one end of the pull rod is connected to the piston, and the other end extends out of the cylinder along the direction close to the first connection part and cooperates with the cylinder in a sliding seal, the pull rod is detachably connected to the insulator at one end away from the piston, a release hole communicating with the inside of the cylinder is opened on the outer wall of the cylinder, the release hole is located on the side of the piston close to the pull rod, a vent is arranged at one end of the cylinder away from the first connection part, and a valve is arranged on the vent. The purpose of the present invention is to solve the technical problem that the traditional tension test equipment is insufficient in assessing the tolerance capacity of the insulator under the situation of a sharp drop in pressure.
Description
Technical Field
The invention belongs to the technical field of tension tests, and particularly relates to an insulator tension test device.
Background
The GIS shell is used as an external structure of the GIS equipment and bears the weight of supporting the internal elements and resisting the external environmental pressure. The insulator serves as a core component for connecting the housing and the inner conductor, and the tensile strength of the insulator is directly related to the stability of the GIS housing. The tensile test of the insulator is a key means for evaluating the strength and the quality of the insulator, and the tensile value of the insulator under the action of stretching can be obtained through the test.
The existing insulator tension testing device comprises a placing frame for bearing an insulator, wherein two ends of the placing frame are respectively provided with a first connecting part and a second connecting part which can be detachably connected with two ends of the insulator. The first connecting part is fixedly connected with the placing frame, and the second connecting part is in sliding connection with the placing frame. In addition, the rack is also provided with a driving component for driving the second connecting part to move and a testing device which is arranged on the second connecting part and is used for measuring the tension value of the insulator.
When in use, the insulator is firstly placed on the placing frame, and two ends of the insulator are respectively connected with the first connecting part and the second connecting part. And then the driving assembly is started to drive the second connecting part to move away from the first connecting part. In the process, the testing device can monitor the tensile property of the insulator in real time. If the insulator still does not crack or break when the tensile force reaches the preset qualification standard, the tensile property of the insulator is judged to be qualified.
However, the conventional insulator tension test apparatus reversely drives the second connection portion to move back to release tension by the driving assembly. The method can not realize the instant release of the pulling force, so that the situation that the pressure is suddenly reduced due to the rapid expansion and cooling of the gas caused by the extinction of the electric arc or the end of the discharge in the process of suddenly changing the current of the insulator can not be simulated and detected, and certain application limitation exists.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an insulator tension test device so as to solve the technical problem that the traditional insulator tension test device has insufficient evaluation on the tolerance capability of an insulator under the condition of rapid pressure drop.
The technical scheme includes that the insulator tension testing device comprises a placing frame, a first connecting portion and a second connecting portion, wherein the first connecting portion and the second connecting portion are respectively arranged at two ends of the placing frame, the first connecting portion is fixedly connected with the placing frame, the second connecting portion is in sliding connection with the placing frame, a testing part is arranged on the second connecting portion, a driving part for pushing the second connecting portion to slide is arranged on the placing frame, the testing part comprises a barrel body of a hollow cylindrical structure, the barrel body is arranged along the length direction of the placing frame, a piston is arranged in the barrel body, the piston is in sliding sealing fit with the barrel body along the length direction of the barrel body, a pull rod is further arranged in the barrel body, one end of the pull rod is connected with the piston, the other end of the pull rod extends out of the barrel body along the length direction of the barrel body towards the direction close to the first connecting portion, the pull rod is in sliding sealing fit with the barrel body, one end far away from the piston is detachably connected with the end of the insulator, a release hole communicated with the interior of the barrel body is formed in the outer side of the barrel body, the release hole is located at one end of the piston, the end far away from the first connecting portion is provided with the valve, and a vent is arranged on the barrel body.
Compared with the prior art, the invention has the advantages that:
(1) The tension test equipment for the insulator provided by the invention has the advantages of small number of parts, simple structure and low manufacturing cost.
(2) The tension test equipment for the insulator provided by the invention can realize tension test of the insulator, can realize test of the tolerance capability of the insulator under the circumstance that the pressure drops sharply, and has strong practicability.
(3) According to the tensile capacity test equipment for the insulator, when the driving part drives the cylinder to move along the length direction of the placing frame, the piston slides in the cylinder, the space inside the cylinder is changed to form a pressure difference with atmospheric pressure, the pressure difference is converted into the tensile force for the insulator through the piston and the pull rod, the tensile force is related to the moving distance of the piston in the cylinder, the tensile force value born by the insulator can be obtained through measuring the moving distance of the piston in the cylinder, and the tensile capacity of the insulator can be summarized through observing the condition of the insulator under each tensile force value, so that the tensile capacity test of the insulator is realized;
When the withstand condition of the insulator is detected in a simulated manner when the pressure drops sharply, the driving part drives the cylinder body to move to the position of the release hole, gas in the right side space of the release hole in the cylinder body can overflow from the release hole rapidly, so that the tensile force borne by the insulator can be released sharply, and the condition of the insulator can be observed at the moment, so that the withstand capability of the insulator under the condition of the pressure drop can be evaluated.
(4) According to the tension testing equipment for the insulator, provided by the invention, the initial volume of the cylinder body positioned on the right side of the release hole is changed by adjusting the initial position of the piston, the tension generated by the insulator is inconsistent when the movement distance of the piston is consistent, the tension range of the insulator is adjusted, the applicability of the tension testing equipment is higher, and in addition, the tension of the insulator can be changed by adjusting the initial position of the piston, so that different pressure drops are formed, the tolerance capability of the insulator under different pressure drops is conveniently observed, and the accuracy of the test is improved.
(5) According to the insulator tension test equipment provided by the invention, when the tension of the insulator is rapidly released and the insulator can move downwards under the influence of gravity, when the insulator moves downwards, the piston is pulled to move towards the first connecting part continuously, after the piston passes through the release hole, the left side of the cylinder body forms a closed space, and the closed space is compressed by the continued movement of the piston, so that the continued movement of the piston is blocked, and meanwhile, the continued downward movement of the insulator is prevented, so that the possibility of collision between the insulator and the placement frame is reduced by the design;
In addition, compared with the traditional mode of directly preventing the movement of the piston by the rigid limiting structure, the invention skillfully utilizes the compression space to slow down and limit the further movement of the piston, and the design not only provides softer elastic protection for the insulator and effectively avoids possible damage, but also realizes the aim by optimizing the structure of the invention compared with the limiting mode depending on additional elastic pieces, thereby not only being simpler in structure, but also being more economical and efficient in practical application.
Further, the release hole is in a strip shape arranged along the length direction of the cylinder body, and the length dimension of the release hole is equal to the thickness dimension of the piston.
When the piston moves to the position of the release hole and just seals the release hole, the left side and the right side of the cylinder body form a closed space, and at the moment, if the piston continues to move, the pressure in the space on the right side of the cylinder body is rapidly released, and meanwhile, the space on the left side of the cylinder body is timely compressed, so that the insulator is timely prevented from falling down by timely compression, and the insulator can be effectively protected rapidly.
Further, be provided with transparent observation window on the barrel, the observation window is the strip shape that sets up along barrel length direction, sets up length measurement line on the observation window.
Further, the driving part comprises a screw rod and a sliding block arranged on the screw rod in a threaded manner, and the screw rod is rotatably arranged on the bracket and is arranged along the length direction of the cylinder;
the rack is provided with a sliding rail along the length direction of the rack, the sliding block is in sliding fit with the sliding rail, and the sliding block is fixedly connected with the cylinder body.
In the invention, the following components are added:
(1) Can adjust the position of barrel on the rack through rotating the lead screw, and then adjust the distance between barrel and the first connecting portion, the change of distance between first connecting portion and the barrel can be applicable to different insulators, like the insulator for the cable is longer, and the inside used insulator of GIS casing is shorter, can increase the practicality of this equipment through so changing.
(2) When testing, make the barrel along rack length direction motion through rotating the lead screw, and then through pull rod pulling piston at the inside motion of barrel, change barrel inner space, the adjustment is to the pulling force that the insulator applyed, and the self-locking function of screw rod can keep the position unchanged after the barrel removes, and then maintains the pulling force of applying the insulator to test this insulator is in the tensile ability under this pulling force for a long time.
Further, a locking assembly is arranged between the placing frame and the cylinder body, the locking assembly comprises a first locking part and a second locking part, the first locking part is of a plate-shaped structure, the first locking part is vertically arranged on the placing frame and is arranged along the length direction of the placing frame, and one side, close to the cylinder body, of the first locking part is provided with first locking teeth;
The second locking part comprises a mounting tube, a lock rod and an elastic piece, wherein the mounting tube is communicated with the cylinder body and is positioned at one end of the release hole close to the insulator, the lock rod is arranged in the mounting tube, the lock rod is provided with second lock teeth with first lock teeth matched with each other, when the piston moves to one end of the cylinder body close to the insulator, the pressure inside the cylinder body can be increased to enable the lock rod to move towards the first locking part, the first lock teeth and the second lock teeth form a locking state to prevent the cylinder body from moving towards the direction away from the insulator, and the elastic piece is arranged on the cylinder body and is used for resetting after the lock rod moves.
In the invention, the following components are added:
(1) The compression of the space at the left side of the release hole in the cylinder is linked with the locking of the cylinder, and the locking of the cylinder is automatically realized under the preset compression strength, so that the degree of automation is high.
(2) When the space pressure in the left side of the release hole in the cylinder reaches the compression strength, the cylinder is locked through the locking assembly, the cylinder is prevented from moving in the direction away from the insulator, the cylinder can maintain the pressure value to the left side of the cylinder after not moving in the direction away from the insulator, the cylinder and the insulator complement each other, and the screw rod can not be continuously rotated after the cylinder is locked, so that measurement personnel can be prompted to end measurement, and the insulator needs to be replaced or equipment is restored.
Further, the first locking portion is movably arranged along the length direction of the placement frame, and a fixing piece for fixing the first locking portion on the placement frame is arranged on the first locking portion.
Further, an elastic pad for providing buffer protection for the insulator is arranged on the placing frame.
In the invention, the following components are added:
(1) When placing the insulator on the rack, the elastic pad can hang the insulator tip as a supporting platform to be convenient for the insulator tip be connected with first connecting portion and pull rod.
(2) When the insulator is lowered under the influence of gravity after the insulator test is finished, the elastic pad plays a role in buffering protection, so that the possibility of damage of the insulator caused by breaking is further reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of fig. 1.
Reference numerals:
The device comprises a placing frame 1, a first connecting part 2, an insulator 3, a cylinder 4, a piston 5, a pull rod 6, a release hole 7, an air vent 8, a valve 9, an observation window 10, a length measuring wire 11, a screw rod 12, a sliding block 13, a sliding rail 14, a mounting tube 15, a locking rod 16, an elastic rope 17, a limit bar 18, a plug 19, an elastic pad 20 and a first locking part 21.
Detailed Description
In view of the shortcomings in the prior art, the inventor of the present application has long studied and practiced in a large number of ways to propose the technical scheme of the present application. The technical scheme, implementation process and principle of the present application will be further explained with reference to the drawings and specific embodiments in the embodiments of the present application.
It should be noted that the embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention, and the described embodiments are only some embodiments of the present invention, not all embodiments. The invention is to cover alternatives, modifications, equivalents, and variations of the invention as may be included within the spirit, principles and scope of the invention as defined by the appended claims as would be apparent to one of ordinary skill in the art to which the invention pertains without inventive faculty.
In the description of the present application, the terms "first," "second," "third," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
In the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, when terminology is used in two-sided, outboard, up-down, etc., it is to be understood that this is for ease of understanding and description only, as it is contemplated that the structure may be oriented in other positions.
In the description of the present application, unless explicitly specified and limited otherwise, terms of art or science are used in a general sense as understood by those skilled in the art to which the present application pertains, and terms such as "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable or contradictory or integral, and the detailed meaning of the terms in the present application may be understood as specific to those skilled in the art.
Referring to fig. 1-2, the invention provides a technical scheme that an insulator tensile testing device comprises a placing frame 1, a first connecting part 2, a second connecting part, a driving part and a testing part. The rack 1 is used as a basic platform for testing, is horizontally placed on the ground, and is provided with a first connecting part 2 and a second connecting part at two ends respectively. The first connecting portion 2 is fixedly connected with the placement frame 1, and provides a stable anchor point for the insulator 3 and is used for connecting one end of the insulator 3. The second connecting part is connected with the rack 1 in a sliding way, and allows free movement along the length direction of the rack 1 during the test. The driving part is installed on the rack 1 and used for pushing the second connecting part to slide.
The test part includes the barrel 4 of cavity tubular structure, and barrel 4 sets up along rack 1 length direction, and barrel 4 inside is provided with piston 5, and piston 5 is along barrel 4 length direction and barrel 4 sliding seal cooperation, when receiving the pulling force, and piston 5 can remove along barrel 4 length direction to change the inside space volume and the internal pressure of barrel 4. In order to transfer the pulling force, a pull rod 6 is further arranged in the cylinder 4, one end of the pull rod 6 is connected with the piston 5, and the other end extends out of the cylinder 4 along the length direction of the cylinder 4 towards the direction close to the first connecting part 2. The pull rod 6 is in sliding sealing fit with the cylinder 4, so that no gas can leak from the gap between the pull rod 6 and the cylinder 4 in the testing process. One end of the pull rod 6 far away from the piston 5 is detachably connected with the end part of the insulator 3, so that different insulators 3 can be conveniently installed and detached for testing. The outer side wall of the cylinder body 4 is provided with a release hole 7 communicated with the inside of the cylinder body 4, and the release hole 7 is positioned on one side of the piston 5 close to the pull rod 6. The design of the release hole 7 is critical and allows the gas inside the cylinder 4 to be released rapidly when the release hole 7 is reached during the test, thus simulating the toleration of the test insulator 3 in the event of a sharp drop in pressure. The cylinder 4 is provided with the air vent 8 far away from first connecting portion 2 one end, is provided with valve 9 on the air vent 8, through opening and closing valve 9, can make cylinder 4 left side space be in airtight or open state. The left space of the cylinder 4 is a space inside the cylinder 4 located on the left side of the release hole 7, and the right space of the cylinder 4 is a space inside the cylinder 4 located on the right side of the release hole 7.
When the tensile capacity of the insulator 3 is detected, the position of the piston 5 is adjusted first, so that the piston 5 abuts against one end, far away from the first connecting portion 2, of the cylinder 4, and then the insulator 3 is placed on the placement frame 1. One end of the insulator 3 is connected with one end of the pull rod 6 far away from the piston 5, and the other end is connected with the first connecting part 2. The driving means is then activated to move the cylinder 4 along the length of the carrier 1 in a direction away from the first connection 2, in which process the piston 5 slides within the cylinder 4 in a direction towards the first connection 2, expanding the inner space of the cylinder 4, creating a pressure difference with the atmospheric pressure. The pressure difference is converted into the tension to the insulator 3 through the piston 5 and the pull rod 6, the tension is related to the moving distance of the piston 5 in the cylinder 4, the tension value of the insulator 3 can be obtained by measuring the moving distance of the piston 5 in the cylinder 4, and the tensile capacity of the insulator 3 can be summarized by observing the condition of the insulator 3 under each tension value. Finally, the valve 9 is opened, the pull rod 6 is pushed to restore the piston 5 to the original position, and the gas in the left space of the cylinder 4 is discharged outwards through the valve 9.
When it is necessary to simulate and detect the tolerance of the insulator 3 in the case of a sudden pressure drop, the operation is similar, but when the driving member drives the cylinder 4 to move to the position of the release hole 7, the gas in the closed space on the right side of the cylinder 4 rapidly overflows from the release hole, so that the tensile force exerted on the insulator 3 is suddenly released. The condition of the insulator 3 can be observed at this time, thereby evaluating its withstand capability in the case of this pressure drop.
It is noted that, when the tension of the insulator 3 is rapidly released and moves downward under the influence of gravity thereof, collision with the placement frame 1 may occur, resulting in damage. However, in the device of the present invention, when the insulator 3 moves downward, the piston 5 is pulled to continue moving toward the first connecting portion 2. When the piston 5 passes through the release hole 7, a closed space is formed on the left side of the cylinder 4. Continued movement of the piston 5 compresses this enclosed space, thereby impeding continued movement thereof, while also impeding continued downward movement of the insulator 3. This design reduces the likelihood of the insulator 3 colliding with the shelf 1. In case that the measuring staff fails to notice the position of the piston 5 in time, if the cylinder 4 is driven to move away from the first connecting portion 2 by the driving part, the present invention ingeniously uses the compression space to slow down and limit the further movement of the piston 5, compared with the conventional rigid limiting structure which directly prevents the movement of the piston 5. The design not only provides softer elastic protection for the insulator 3 and effectively avoids possible damage, but also realizes the aim through the optimization of the structure of the insulator, compared with a limiting mode depending on additional elastic pieces, the insulator has a simpler structure and is more economical and efficient in practical application. In addition, when the original state is restored, the valve 9 is opened, the pull rod 6 is pushed, and the gas is discharged outwards through the air port 8.
Further, in order to facilitate observation of the moving distance of the piston 5, a transparent observation window 10 is provided on the cylinder 4, the observation window 10 is in a bar shape provided along the longitudinal direction of the cylinder 4, and a length measuring line 11 is provided on the observation window 10. The movement distance of the piston 5 can be obtained by the initial position and the final position of the piston 5. In addition, the initial volume of the right side of the cylinder 4 can be changed by adjusting the initial position of the piston 5, so that the tension generated by the insulator 3 is inconsistent under the condition that the moving distance of the piston 5 is consistent, and the tension range of the insulator 3 is adjusted, so that the method has higher applicability. The size of the space on the right side of the cylinder 4 under the initial position of the piston 5 is calculated and determined by measuring the length measuring line 11.
In this embodiment, in order to further enhance the protective effect of the insulator 3 upon abrupt release of pressure, the release hole 7 is designed in a bar shape along the length direction of the cylinder 4 and has a length dimension equal to the thickness dimension of the piston 5. The design is such that when the piston 5 moves to the position of the release hole 7 and just seals the release hole 7, a closed space is formed on both the left and right sides of the cylinder 4. At this time, if the piston 5 continues to move, the pressure in the right space of the cylinder 4 is abruptly released. Meanwhile, the left space of the cylinder 4 is compressed in time, and the insulator 3 is prevented from falling in time by timely compression, so that an effective protective barrier can be formed for the insulator 3 rapidly. Therefore, the design further enhances the protection effect of the insulator 3 in the case of realizing the detection of the withstand capability of the insulator under abrupt pressure change.
In the embodiment, the driving part comprises a screw rod 12 and a sliding block 13 which is arranged on the screw rod 12 in a threaded manner, and the screw rod 12 is rotatably arranged on the bracket and is arranged along the length direction of the cylinder 4. The rack 1 is provided with a sliding rail 14 along the length direction of the rack 1, a sliding block 13 is in sliding fit with the sliding rail 14, and the sliding block 13 is fixedly connected with the cylinder 4. Can drive slider 13 along slip track 14 slip through rotating lead screw 12, in this embodiment, rack 1 has the board of placing of level setting, places board length direction and rack 1 length direction unanimity, and slip track 14 is for seting up the bar through-hole on placing the board, and the bar through-hole sets up along placing board length direction.
The position of the cylinder 4 on the rack 1 can be adjusted by rotating the screw 12, so that the arrangement has the following advantages:
① . Can adjust the position of barrel 4 on rack 1 through rotating lead screw 12, and then adjust the distance between barrel 4 and the first connecting portion 2, the change of distance between first connecting portion 2 and the barrel 4 can be applicable to different insulators 3, say that insulator 3 is longer for the cable, and the inside used insulator 3 of GIS casing is shorter, can increase the practicality of this equipment through so changing.
② . When the test is carried out, the cylinder 4 moves along the length direction of the placing frame 1 by rotating the screw rod 12, then the piston 5 is pulled to move inside the cylinder 4 by the pull rod 6, the inner space of the cylinder 4 is changed, the tension applied to the insulator 3 is adjusted, the self-locking function of the screw rod can keep the position unchanged after the cylinder 4 moves, and the tension applied to the insulator 3 is further maintained.
In the embodiment, a locking assembly is arranged between a placing frame 1 and a cylinder 4, the locking assembly comprises a first locking part 21 and a second locking part, wherein the first locking part 21 is of a plate-shaped structure, the first locking part 21 is vertically arranged on the placing frame 1 and is arranged along the length direction of the placing frame 1, specifically, the first locking part 21 is vertically arranged on a placing plate of the placing frame 1, and a first locking tooth is arranged on one side, close to the cylinder 4, of the first locking part 21;
The second locking part comprises a mounting tube 15, a locking rod 16 and an elastic piece, wherein the mounting tube 15 is communicated with the cylinder 4 and is positioned at one end of the release hole 7 close to the insulator 3, specifically, the mounting tube 15 is arranged in an extending mode along the width direction of the placement frame 1, the locking rod 16 is arranged in the mounting tube 15, the locking rod 16 is provided with second locking teeth with first locking teeth matched with each other, when the piston 5 moves to one end of the cylinder 4 close to the insulator 3, the pressure inside the cylinder 4 can be increased (namely, the pressure in the left side space of the cylinder 4 is increased), the pressure can enable the locking rod 16 to move towards the first locking part 21, and when the locking rod 16 moves to a certain position, the first locking teeth and the second locking teeth can form a locking state, so that the cylinder 4 is prevented from moving towards the direction far away from the insulator 3. The main function of the locking assembly is to automatically lock the cylinder 4 by increasing the pressure inside the cylinder 4 when the piston 5 moves to a specific position (i.e. a limit value of the pressure in the left space of the cylinder 4), so as to prevent the cylinder 4 from moving away from the insulator 3 (i.e. to prevent the piston 5 from further compressing the left space of the cylinder 4, so that the pressure in the left space of the cylinder 4 is smaller, and the tension applied to the insulator 3 is smaller, so that the tension applied to the insulator 3 is avoided as much as possible).
The elastic piece is arranged on the cylinder 4 and used for resetting after the lock rod 16 moves, and specifically, the elastic piece is an elastic rope 17, one end of the elastic rope 17 is fixedly connected with the cylinder 4, and the other end of the elastic rope is fixedly connected with the lock rod 16.
The compression of the space at the left side of the release hole 7 in the cylinder 4 is linked with the locking of the cylinder 4, and the locking of the cylinder 4 is automatically realized under the preset compression strength, so that the degree of automation is high. When the space pressure in the left side of the release hole in the cylinder 4 reaches the compression strength, the cylinder 4 is locked through the locking assembly, the cylinder 4 is prevented from moving in the direction away from the insulator 3, the cylinder 4 can maintain the pressure value to the left side of the cylinder 4 after not moving in the direction away from the insulator 3, the cylinder 4 and the insulator complement each other, and in addition, after the cylinder 4 is locked, the screw rod 12 cannot be continuously rotated, so that measurement personnel can be prompted to end measurement, and replacement of the insulator 3 or restoration of equipment are required.
In this embodiment, in order to reduce interference of the first locking portion 21 on the insulator 3, the first locking portion 21 is movably provided along the length direction of the rack 1, and a fixing member for fixing the first locking portion 21 to the rack 1 is provided on the first locking portion 21. When the position of the cylinder 4 is adjusted by the screw rod 12 to adapt to different insulators 3, the distance between the first locking part 21 and the side of the lock rod 16 close to the insulators 3 is reduced by adjusting the position of the first locking part 21, so that interference of the first locking part 21 on the insulators 3 is reduced.
Specifically, the placing plate of the placing rack 1 is provided with two limiting strips 18 along the length direction of the placing plate, the limiting strips 18 are respectively located at two sides of the width direction of the first locking part 21, the limiting strips 18 and the first locking part 21 are respectively provided with a bolt 19 hole, the fixing piece is a bolt 19, and when the bolt 19 is inserted into the limiting strips 18 and the bolt 19 holes of the first locking part 21, the first locking part 21 and the limiting strips 18 are in a fixed state.
In this embodiment, the placing frame 1 is provided with an elastic pad 20 for providing buffer protection for the insulator 3, and the elastic pad 20 may be made of rubber material. When the insulator 3 is placed on the placement frame 1, the elastic pad 20 serves as a supporting platform to suspend the end part of the insulator 3, so that the end part of the insulator 3 is convenient to connect with the first connecting part 2 and the pull rod 6, and when the insulator 3 is lowered under the influence of gravity after the test is finished, the elastic pad 20 plays a role in buffering protection, so that the possibility of damage of the insulator 3 caused by knocks is reduced.
It should be understood that the foregoing embodiments are merely illustrative of the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to practice it accordingly, it should not be construed that the present invention is limited to the embodiments, and that several simple deductions or substitutions may be made by those skilled in the art without departing from the spirit of the present invention, and all equivalent changes or modifications according to the spirit of the present invention shall be covered in the scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510311748.1A CN120009064A (en) | 2025-03-17 | 2025-03-17 | Insulator tension test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510311748.1A CN120009064A (en) | 2025-03-17 | 2025-03-17 | Insulator tension test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN120009064A true CN120009064A (en) | 2025-05-16 |
Family
ID=95666542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510311748.1A Pending CN120009064A (en) | 2025-03-17 | 2025-03-17 | Insulator tension test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN120009064A (en) |
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2025
- 2025-03-17 CN CN202510311748.1A patent/CN120009064A/en active Pending
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