阅读说明：本技术 一种带应力阻尼器的带电小母线剪切装置 (Electrified little generating line shearing mechanism of area stress damper ) 是由 肖立飞 翁张力 黄旭聪 周一挺 蒋科若 裘愉涛 钱凯 梁流铭 许欣 赖靖胤 康权 于 2021-09-24 设计创作，主要内容包括：本发明涉及一种带应力阻尼器的带电小母线剪切装置,包括机身、剪切装置和可拆卸式锂电池底座；剪切装置与机身通过基座销连接,基座销两端分别通过基座支撑,两个基座与剪切装置之间的基座销上设有防跳装置；机身包括电机,以及被电机驱动的液压泵,剪切装置包括第一剪切头和第二剪切头,第一剪切头包括第一钳夹部、第一钳头销和第一连片,第二剪切头包括第二钳夹部、第二钳头销和第二连片,第一钳夹部、第二钳夹部分别通过第一钳头销、第二钳头销转设在第一连片和第二连片之间,还包括用以隔离待剪切小母线的绝缘环境增强组件。本发明满足继电保护屏顶环境下的带电剪切小母线的工作需求,降低风险工作时间并提高工作安全性。(The invention relates to an electrified small bus shearing device with a stress damper, which comprises a machine body, a shearing device and a detachable lithium battery base, wherein the machine body is provided with a plurality of shearing holes; the shearing device is connected with the machine body through a base pin, two ends of the base pin are respectively supported through bases, and an anti-jumping device is arranged on the base pin between the two bases and the shearing device; the fuselage includes the motor to and by motor drive's hydraulic pump, shearing mechanism includes that first shearing head and second shear the head, and first shearing head includes first tong portion, first tong head round pin and first even piece, and the second shears the head and includes that second tong portion, second tong head round pin and second link the piece, and first tong portion, second tong portion do not rotate through first tong head round pin, second tong head round pin and establish between first even piece and second link the piece, still include the insulating environment reinforcing subassembly that is used for keeping apart to wait to cut little generating line. The invention meets the working requirement of live-line shearing of the small bus under the relay protection screen top environment, reduces the risk working time and improves the working safety.)

1. The utility model provides a take electrified little generating line shearing mechanism of stress damper which characterized in that: the battery box comprises a machine body, a shearing device arranged at the end part of the machine body and a detachable battery base arranged at the tail part of the machine body; the shearing device is connected with the machine body through a base pin, two ends of the base pin are respectively supported through a base, and a bus bounce prevention device is arranged on the base pin between the two bases and the shearing device; the fuselage includes the motor to and by motor drive's hydraulic pump, shearing mechanism includes that first shearing head and second are sheared the head, first shearing head includes first tong portion, first tong head round pin and first even piece, the second is sheared the head and is included second tong portion, second tong head round pin and second even piece, first tong portion, second tong portion do not establish through first tong head round pin, second tong head round pin commentaries on classics between first even piece and second even piece, still including the insulating environment reinforcing subassembly that is used for keeping apart to treat the little generating line of shearing.

2. The electrified busbar shearing device with the stress damper as recited in claim 1, wherein: the anti-jumping device comprises a first stress damper and a second stress damper which are symmetrically arranged on the base pin, and the first stress damper and the second stress damper are correspondingly arranged on the base pin between the two bases and the shearing device.

3. The electrified busbar shearing device with the stress damper as recited in claim 2, wherein: insulating environment reinforcing component sets up including the symmetry and treats insulating barrier cloth one and insulating barrier cloth two of cuting little generating line below, and insulating barrier cloth one and insulating barrier cloth two are respectively through magnetism inhale formula link one and magnetism inhale two actuation of formula link and keep apart with other little generating lines.

4. The electrified busbar shearing device with the stress damper as recited in claim 1, wherein: the machine body is provided with a reinforced aluminum part for fixing the shearing head, the reinforced aluminum part is provided with a vertical handle, and the surface of the vertical handle is covered with insulating rubber.

5. The electrified busbar shearing device with the stress damper as recited in claim 1, wherein: the first jaw portion comprises a first transmission member, a first blade and a first cutter head insulating gasket attached between the first cutter head and the first transmission member, the first transmission member is provided with a first base insulating gasket, the first transmission member penetrates through a first cutter head pin, and the first cutter head is fixed on the first transmission member through two inner hexagonal screws.

6. The electrified busbar shearing device with the stress damper as recited in claim 5, wherein: and a first shearing surface is arranged on the first blade, and a first groove surface and a second groove surface for positioning the small bus are arranged on the first shearing surface.

7. The electrified busbar shearing device with the stress damper as recited in claim 6, wherein: the second jaw portion comprises a second transmission member, a second blade and a second tool bit insulating gasket attached between the second tool bit and the second transmission member, a second base insulating gasket is arranged on the second transmission member, the second transmission member penetrates through the second tool bit pin, and the second tool bit is fixed on the second transmission member through two inner hexagonal screws.

8. The electrified busbar shearing device with the stress damper as recited in claim 7, wherein: and a second shearing surface is arranged on the second blade, and a groove surface III and a groove surface IV for positioning the small bus are arranged on the first shearing surface.

9. The electrified busbar shearing device with the stress damper as recited in any one of claims 1 to 8, wherein: the shearing device comprises an extension spring which is fixed between a first transmission component and a second transmission component through a first extension spring positioning pin and a second extension spring positioning pin.

10. The electrified busbar shearing device with the stress damper as recited in claim 9, wherein: the first stress damper comprises a first damping surface, a first front opening surface and a first rear opening surface, and the included angle between the first damping surface and the first rear opening surface is 210 degrees; the second stress damper comprises a second damping surface, a second front opening surface and a second rear opening surface, and the included angle between the second damping surface and the second rear opening surface is 210 degrees.

Technical Field

The invention relates to an electrified small bus shearing device with a stress damper.

Background

The operation of removing the screen top small bus can be carried out in the relay protection transformation installation process, the work is often carried out on the screen top with the height of 2 meters, and the copper bar required to be removed is cut off under the condition that the peripheral small bus is electrified. The existing manual-driven locking pliers are large in size and weight, have no professional insulation protection, and are usually only wound with an insulation tape on the pliers head. The device is not only low in efficiency but also easy to face electric shock and short circuit danger through manual operation on a charged screen top with the height of two meters, and safety accidents of personnel and equipment are easily caused.

Disclosure of Invention

The technical problem to be solved by the invention is to provide the live small bus shearing device with the stress damper, which meets the working requirement of live shearing of the small bus under the special environment of a relay protection screen, avoids electric shock and short circuit danger, greatly reduces the risk working time and improves the working safety.

In order to solve the technical problems, the invention is realized by the following technical scheme:

a shearing device with a stress damper for a small electrified bus comprises a machine body, a shearing device arranged at the end part of the machine body and a detachable battery base arranged at the tail part of the machine body; the shearing device is connected with the machine body through a base pin, two ends of the base pin are respectively supported through a base, and a bus bounce prevention device is arranged on the base pin between the two bases and the shearing device; the fuselage includes the motor to and by motor drive's hydraulic pump, shearing mechanism includes that first shearing head and second are sheared the head, first shearing head includes first tong portion, first tong head round pin and first even piece, the second is sheared the head and is included second tong portion, second tong head round pin and second even piece, first tong portion, second tong portion do not establish through first tong head round pin, second tong head round pin commentaries on classics between first even piece and second even piece, still including the insulating environment reinforcing subassembly that is used for keeping apart to treat the little generating line of shearing.

Preferably, the anti-bouncing device comprises a first stress damper and a second stress damper which are symmetrically arranged on the base pin, and the first stress damper and the second stress damper are correspondingly arranged on the base pin between the two bases and the shearing device.

Preferably, the insulating environment reinforcing assembly comprises a first insulating isolation cloth and a second insulating isolation cloth which are symmetrically arranged below the small bus to be sheared, and the first insulating isolation cloth and the second insulating isolation cloth are respectively attracted and isolated from other small buses through a first magnetic attraction type connecting end and a second magnetic attraction type connecting end.

Preferably, a reinforced aluminum part is arranged on the machine body and used for fixing the shearing head, a vertical handle is arranged on the reinforced aluminum part, and insulating rubber covers the surface of the vertical handle.

Preferably, the first jaw portion includes a first transmission member, a first blade, and a first blade insulating spacer attached between the first blade and the first transmission member, the first transmission member is provided with a first base insulating spacer, the first transmission member is disposed on the first jaw pin in a penetrating manner, and the first blade is fixed to the first transmission member through two hexagon socket head screws.

Preferably, the first blade is provided with a first shearing surface, and the first shearing surface is provided with a first groove surface and a second groove surface for positioning the small bus.

Preferably, the second clamping portion includes a second transmission member, a second blade, and a second tool bit insulating spacer attached between the second tool bit and the second transmission member, the second transmission member is provided with a second base insulating spacer, the second transmission member is disposed on the second clamping pin in a penetrating manner, and the second tool bit is fixed to the second transmission member through two hexagon socket head screws.

Preferably, the second blade is provided with a second shearing surface, and the first shearing surface is provided with a groove surface three and a groove surface four for positioning the small bus.

Preferably, the shearing device comprises an extension spring which is fixed between the first transmission member and the second transmission member by a first extension spring positioning pin and a second extension spring positioning pin.

Preferably, the first stress damper comprises a first damping surface, a first front opening surface and a first rear opening surface, and an included angle between the first damping surface and the first rear opening surface is 210 degrees; the second stress damper comprises a second damping surface, a second front opening surface and a second rear opening surface, and the included angle between the second damping surface and the second rear opening surface is 210 degrees.

In conclusion, the invention has the advantages that:

aiming at the narrow working surface of a small bus, the tool bit is miniaturized, and a modularized installation mode is adopted, so that the tool bit can effectively reduce the maintenance cost while adapting to different working conditions; the tool bit adopts modes of insulating spraying, arranging an insulating pad at a key position and the like, so that the small bus can be cut in an electrified way, the reliable insulation between the tool bit and the machine body is ensured, and the construction safety of maintainers is ensured; the design of the stress damper for preventing the bus from bouncing greatly improves the safety coefficient of shearing operation, can be adaptive to different small bus wire diameters, and effectively prevents the small bus from jumping under the action of shearing force; the insulation movable part and the cutter head can be conveniently disassembled and assembled, namely, the part can be replaced to adapt to different working environments, and the insulation movable part is convenient to be used in a construction site for a long time, so that the service life is prolonged; all designs provide possibility for single-person operation, improve working efficiency and reduce safety risk; and an insulating environment reinforcing component is additionally arranged to isolate the small bus to be sheared from other small buses. The insulating strength of the working environment is improved, and the insulating reliability in live-line operation is ensured.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of a shearing apparatus according to the present invention;

FIG. 3 is a schematic view of the structure of the cutting head of the present invention;

FIG. 4 is an exploded view of the shear head of the present invention;

FIG. 5 is a front view of the insulating environmental enhancement assembly of the present invention;

FIG. 6 is a top view of the insulating environmental enhancement assembly of the present invention;

FIG. 7 is a graph showing the test results of the present invention under different environments.

Reference numerals:

10. a shearing device; 20. a body; 21. reinforcing the aluminum piece; 22. a vertical handle; 30. a battery base; 71. a small bus I; 72. a small bus II; 73. a small bus III; 74. a small bus bar IV; 80. insulating isolation cloth I; 81. the magnetic type connecting end I; 90. insulating isolation cloth II; 91. a second magnetic-type connecting end; 100. a first cutting head; 101. a first clamping portion; 102. a first tong head pin; 103. a first transmission member; 104. a first blade; 105. a hexagon socket head cap screw; 106. a hexagon socket head cap screw; 107. fixing the bolt; 108. fixing the bolt; 122. a first shear plane; 123. a first groove surface; 124. a groove surface II; 125. a first outer side; 126. a first bit side surface; 131. a first base insulating spacer; 132. a first blade tip insulating spacer; 180. a first connecting piece; 181. a base; 182. a base pin; 183. an extension spring; 118. a first extension spring locating pin; 200. a second cutting head; 201. a second jaw portion; 202. a second tong head pin; 203. a second transmission member; 204. a second cutter head; 205. a hexagon socket head cap screw; 206. a hexagon socket head cap screw; 207. fixing the bolt; 208. fixing the bolt; 218. a second extension spring locating pin; 222. a second shear plane; 223. a groove surface III; 224. a groove surface IV; 225. a second outer side; 226. a second insert side surface; 231. a second base insulating spacer; 232. a second bit insulating spacer; 280. a second connecting piece; 401. a first stress damper; 421. a first damping surface; 422. a first front open face; 423. a first rear open face; 501. a second stress damper; 521. a second damping surface; 522. a second front open face; 523. a second rear open face.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the present invention will be further described with reference to the accompanying drawings and specific examples. It is to be understood that the following terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like are used merely to indicate an orientation or positional relationship relative to one another as illustrated in the drawings, merely to facilitate describing and simplifying the invention, and are not intended to indicate or imply that the device/component so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore are not to be considered limiting of the invention.

A shearing device with a stress damper for a small electrified bus is shown in figures 1-7 and comprises a machine body 20, a shearing device 10 arranged at the end part of the machine body 20 and a detachable battery base 30 arranged at the tail part of the machine body 20; the shearing device 10 is connected with the machine body 20 through a base pin 182, two ends of the base pin 182 are respectively supported through a base 181, and anti-bouncing devices for preventing bus bouncing are respectively arranged on the base pins 182 between the two bases 181 and the shearing device 10; the body 20 comprises an electric motor and a hydraulic pump driven by the electric motor, the shearing device 10 comprises a first shearing head 100 and a second shearing head 200, the first shearing head 100 comprises a first clamping part 101, a first clamping pin 102 and a first connecting piece 180, the second shearing head 200 comprises a second clamping part 201, a second clamping pin 202 and a second connecting piece 280, and the first clamping part 101 and the second clamping part 201 are rotatably arranged between the first connecting piece 180 and the second connecting piece 280 through the first clamping pin 102 and the second clamping pin 202 respectively; the insulating environment enhancement assembly is used for isolating the small bus to be sheared. When the hydraulic pump pressurizes, the piston cylinder of the hydraulic pump moves towards the shearing head, so that the first clamping part 101 and the second clamping part 201 of the shearing head move around the first clamping pin 102 and the second clamping pin 202 respectively to generate shearing force, the motor is adopted to replace manual driving, the power of the device is improved, the problem of personnel fatigue during frequent shearing is solved, the risk working time is effectively reduced, and the original working time is reduced by 50%. The anti-bouncing device is arranged, so that the bouncing problem of the small bus subjected to shearing force is prevented, and the bouncing phenomenon of the small bus can be effectively reduced under different operating environments. The insulating environment reinforcing assembly is additionally arranged, so that the small bus to be sheared is isolated from other small buses, and the safety coefficient of shearing operation is greatly improved.

In order to provide a reliable gripping point for constructors, a reinforced aluminum member 21 is provided on the body 20 for fixing the cutting head, a vertical handle 22 is provided on the reinforced aluminum member 21, and the surface of the vertical handle 22 is covered with an insulating rubber. The construction personnel can conveniently grasp the cable and the insulation reliability during live-line operation is ensured.

As shown in fig. 2, in order to solve the bouncing problem of the small bus bar after being subjected to the shearing force, the anti-bouncing device comprises a first stress damper 401 and a second stress damper 501 which are symmetrically arranged on the base pin 182, and the first stress damper 401 and the second stress damper 501 are correspondingly arranged on the base pin 182 between the two bases and the shearing device 10. The anti-bouncing device is simple and reliable in structure and high in flexibility, the bouncing phenomenon of the small bus can be effectively reduced under different operating environments, the insulation problem needs to be considered during the design of the anti-bouncing device, and the first stress damper 401 and the second stress damper 501 are both made of engineering plastics with certain elasticity.

The first stress damper 401 includes a first damping surface 421, a first front opening surface 422, and a first rear opening surface 423, and an included angle between the first damping surface 421 and the first rear opening surface 423 is 210 °. In order to provide damping reliably to the small bus bar which is displaced under stress, under the condition of no external force, the first damping surface 421 has a first opening distance of 5mm between the intersecting lines of the opening surfaces, and the first damping surface at the pin hole side of the base pin is a semicircular surface with the diameter of 9 mm. In the case of external forces, for example clamping the damper to the small busbar, it is ensured that the first opening distance can reach at least 8 mm. The second stress damper 501 comprises a second damping surface 521, a second front opening surface 522 and a second rear opening surface 523, the angle between the second damping surface 521 and the second rear opening surface 523 being 210 °. In order to provide damping reliably to the small bus bar which is displaced under stress, under the condition of no external force, the second opening distance between the intersection line of the second damping surface 521 and the opening surface is 5mm, and the second damping surface at the pin hole side of the base pin is a semicircular surface with the second diameter of 9 mm. In case of external forces (e.g. clamping the damper to the small busbar), it should be ensured that the second opening distance is at least 8 mm.

Specifically, referring to fig. 3 and 4, the first jaw 101 includes a first transmission member 103, a first blade 104, and a first blade insulating pad 132 attached between the first blade and the first transmission member 103, the first blade insulating pad 132 ensures insulation between the first blade 104 and the first transmission member 103, the first transmission member 103 is provided with a first base insulating pad 131, the first transmission member 103 is disposed on the first jaw pin 102, and the first blade is fixed to the first transmission member 103 by two hexagon socket head screws 105 and 106. When the hydraulic piston cylinder exerts a force on the first base insulating washer 131, the first jaw 101 rotates about the first jaw pin 102, and the first base insulating washer 131 effectively insulates the first cutting head 100 from the body 20. The first blade 104 is provided with a first shearing surface 122, and the first shearing surface 122 is provided with a first groove surface 123 and a second groove surface 124 for positioning the small bus. The diameters of the first groove surface 123 and the second groove surface 124 are respectively 6mm and 8 mm. Small bus bars with the specification of 6mm and 8mm can be cut. The first cutting surface 122 is spaced from the first outer side 125 of the first blade 104 by a distance of not more than 11mm, which ensures that the cutting head 100 can be placed between small busbars arranged in a row. The first included angle between the first shear plane 122 and the first bit side surface 126 is 120 °. The force applied to first base insulator pad 131 ultimately translates into a shear force on first shear plane 122.

The second clamping portion 201 includes a second transmission member 203, a second blade, and a second tool bit 204 insulating spacer attached between the second tool bit 204 and the second transmission member 203, the second transmission member 203 is provided with a second base insulating spacer 231, the second transmission member 203 is disposed on the second tool bit pin 202 in a penetrating manner, and the second tool bit 204 is fixed on the second transmission member 203 by two hexagon socket head screws 205, 206. When the hydraulic piston cylinder exerts a force on the second base insulating washer 231, the second jaw portion 201 rotates about the second jaw pin 202, and the second base insulating washer 231 effectively insulates the cutting head 200 from the body 20. The second shearing surface 222 has a groove surface three 223 and a groove surface four 224 for positioning small bus bars with diameters of 6mm and 8mm, respectively, and can shear small bus bars with specifications of 6mm and 8 mm. The distance between the second cutting surface 222 and the second outer side surface 225 of the second blade is not more than 11mm, so that the cutting heads can be arranged among the small buses arranged in rows. A second included angle between the second shear plane 222 and the side surface of the second tool tip 204 is 60 °. A second cutting head 204 insulating spacer is attached between the second cutting head 204 and the second transmission member 203, so that insulation between the second cutting head 204 and the second transmission member 203 is ensured, and the force applied to the second base insulating spacer 231 is finally converted into a shearing force on the second shearing surface 222.

The shearing device 10 further comprises an extension spring 183, and the extension spring 183 is fixed between the first transmission member 103 and the second transmission member 203 through a first extension spring 183 locating pin and a second extension spring 183 locating pin. The extension spring 183 provides a return force when the first transmission member 103 and the second transmission member 203 are forced apart.

As shown in fig. 5 and fig. 6, in order to guarantee the personal safety under the live working, add insulating environment reinforcing subassembly, including the symmetry setting treat insulating barrier cloth one 80 and insulating barrier cloth two 90 of shearing little generating line below, insulating barrier cloth one 80 and insulating barrier cloth two 90 links are equipped with respectively and inhale formula link one 81 and inhale formula link two 91, insulating barrier cloth one 80 and insulating barrier cloth two 90 through inhale formula link one 81 and inhale the actuation of formula link two 91 and keep apart with other little generating lines.

And a small bus I71, a small bus II 72, a small bus III 73 and a small bus IV 74 are erected in parallel on the screen top, and the small bus III 73 is a small bus to be cut. Can inhale the formula link two 91 through magnetism type link one 81 and magnetism with two 90 of two insulating barrier cloths of insulating barrier cloth under little generating line three 73 and keep apart with other little generating lines, improve operational environment dielectric strength.

As shown in FIG. 7, under different environments, the average time of the maintenance work of the maintainers with different skill levels is 2.6 minutes, which is 4.7 minutes lower than the set target value, compared with the original average time of 14.6 minutes, the time of the maintenance work is shortened by 82.2%, the efficiency is improved by 462%, the work efficiency is greatly improved, and the excess reaches the expected target. Therefore, the invention can provide great safety guarantee and quality improvement for relay protection screen top belt electric work.

Other embodiments of the present invention than the preferred embodiments described above will be apparent to those skilled in the art from the present invention, and various changes and modifications can be made therein without departing from the spirit of the present invention as defined in the appended claims.