CN114019359A

CN114019359A - High-voltage circuit breaker dynamic contact resistance testing device capable of improving stability

Info

Publication number: CN114019359A
Application number: CN202111228615.6A
Authority: CN
Inventors: 梁勇
Original assignee: Guangzhou Yiwo New Energy Technology Co ltd
Current assignee: Guangzhou Yiwo New Energy Technology Co ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-02-08

Abstract

The invention provides a high-voltage circuit breaker dynamic contact resistance testing device capable of improving stability, which comprises a shell, wherein the bottom of an inner cavity of the shell is rotatably connected with a rotor, the inner cavity of the shell is movably connected with a cooling mechanism, the cooling mechanism comprises a circulating pipe, and the bottom of the inner cavity of the circulating pipe is rotatably connected with a transmission gear. This improve high voltage circuit breaker dynamic contact resistance testing arrangement of stability, automatic brush head is kept apart in testing arrangement's inside when rotating through the design vortex tube, and carry out the rapid cooling mechanism of pertinence, cooperate static cover to operate in the import department of following the flow tube in the same period and carry out the absorption of impurity, when the cooperation finishes the heat dissipation again, utilize guide frame and flexible cardboard to strike off the tip impurity of static cover, and utilize the cleaning box to collect, thereby the effectual stability can who improves the test, the stable harmful factor of influence equipment test has further been rejected.

Description

High-voltage circuit breaker dynamic contact resistance testing device capable of improving stability

Technical Field

The invention relates to the technical field of resistance testing, in particular to a high-voltage circuit breaker dynamic contact resistance testing device capable of improving stability.

Background

At present, when the test of the dynamic contact resistance of the high-voltage circuit breaker is carried out, the rotor needs to continuously rotate relative to the stator, the stator depends on the brush head and the rotor to keep dynamic contact so as to conduct a circuit, but the temperature at the brush head is sharply increased after a single test is finished, when the number of times of the test is more, if the brush head is not timely cooled, the brush head has the risk of being burnt and damaged, and adjacent elements are influenced, so that the stability of the test of equipment is reduced, a general test device can utilize a fan to cool the interior of the test device, but because the layout of the internal elements of the test device is staggered and complicated, the blowing air flow with general use strength can consume kinetic energy in the process of movement, the requirement of rapidly cooling a heating element can not be met, unnecessary energy consumption can be caused, when the blowing air flow strength is overlarge, because the inside tiny component that contains of testing arrangement, the condition of damage can directly appear in these original paper under the effect of strong air current promptly, this has just caused the brush head to lack necessary pertinence cooling mechanism, when introducing the air current from the external world and cool down the temperature in addition, traditional testing arrangement used is that filter screen or other mechanisms carry out the filtration of impurity, and this kind of mechanism has the drawback of blockking up and need artifical periodic cleaning, and can not fully block tiny particle, and then lead to still having impurity to be carried to testing arrangement's inside by the cooling air current, cause the problem that influences the stable bad factor increase of equipment test.

Disclosure of Invention

In order to solve the problems of poor stability of equipment test and more adverse factors influencing the stability of the equipment test in the operation process of the general dynamic contact resistance testing device for the high-voltage circuit breaker, and achieve the purposes of effectively improving the stability of the test and further eliminating the adverse factors influencing the stability of the equipment test, the invention is realized by the following technical scheme: the utility model provides a high voltage circuit breaker dynamic contact resistance testing arrangement who improves stability, includes the casing, the inner chamber bottom of casing rotates and is connected with the rotor, the inner chamber swing joint of casing has cooling mechanism, cooling mechanism includes the circulation pipe, the inner chamber bottom of circulation pipe rotates and is connected with drive gear, the inner wall of circulation pipe drive gear's the equal sliding connection in both ends has the pinion rack about, the lateral wall of circulation pipe slides to peg graft and has extend to brush head on the rotor, brush head with swing joint has the hinge bar between the pinion rack, the inner chamber top of circulation pipe rotates and is connected with the vortex tube, the inner chamber top sliding connection of vortex tube has the bullet of symmetry, the bottom of vortex tube slides and pegs graft there is the piston cover, the piston cover with swing joint has the connecting rod between the drive gear.

Furthermore, one side of the side wall of the circulating pipe, which is close to the center of the shell, is provided with a through groove matched with the toothed plate, the through groove is in sliding connection with the brush head, and the toothed plate can seal the through groove when the brush head retracts into the inner cavity of the circulating pipe.

Furthermore, the rear wall of the circulating pipe is rotatably connected with a limiting sleeve matched with the connecting rod, so that the connecting rod can stably deflect on the transverse plane.

Furthermore, the periphery of the piston sleeve is provided with a ring groove matched with the connecting rod, so that the piston sleeve can conveniently drive the connecting rod to move upwards or downwards when rotating.

Further, still include filtering mechanism, filtering mechanism swing joint be in the top of casing, filtering mechanism includes the guide frame, the flexible cardboard of the equal fixedly connected with symmetry in the left and right sides of guide frame, the top of casing rotates and is connected with the pendulum seat of symmetry, it is connected with the awl ratch to rotate on the pendulum seat, the groove of cranking has been seted up to the periphery of awl ratch, sliding connection has the static cover on the pendulum seat, the pendulum seat with swing joint has the regulation pole between the connecting rod, the equal sliding connection in the top left and right sides of casing has the cleaning case.

Furthermore, the top of the shell is fixedly connected with a toothed ring meshed with the bevel gear rod, so that the bevel gear rod can rotate when being driven to deflect.

Furthermore, the rear end of the swing seat is provided with an arc-shaped groove matched with the adjusting rod, and the adjusting rod is movably connected with the swing seat, so that when the adjusting rod is driven to move upwards, the adjusting rod can drive the swing seat to correspondingly deflect towards the top center area of the shell.

Furthermore, the inner wall of the static sleeve is fixedly connected with a guide pin extending to the curved groove, so that when the conical toothed bar drives the curved groove to rotate, the static sleeve can be adjusted to slide in or out of the swing seat.

Compared with the prior art, the invention has the following beneficial effects:

1. this improve high voltage circuit breaker dynamic contact resistance testing arrangement of stability, can seal the circulation pipe of isolation to brush head through the design, make after the single test, drive vortex tube can operate and make vortex tube produce the cooling air current from top to bottom, the bullet piece of both sides is displacement dorsad under the inertial action promptly in the vortex tube, utilize the atmospheric pressure balance mechanism then can drive the piston sleeve and shift up, the drive gear deflection of corresponding connecting rod pulling both sides, make corresponding pinion rack pulling hinge lever drive brush head break away from the inner chamber of rotor and retraction circulation pipe, and make another pinion rack just seal logical groove, avoid cooling air current to leak, then can be powerful effectual carry out rapid cooling to the brush head, make it can put into remaining test as early as possible, thereby the effectual stability ability who improves the test.

2. The dynamic contact resistance testing device of the high-voltage circuit breaker for improving the stability is characterized in that when corresponding circuit elements are cooled through equipment, the static sleeve is synchronously electrified and operates on the surface of the static sleeve to generate an electrostatic field, the adjusting rod moves upwards to drive the swing seat to deflect towards one side of the inlet of the circulating pipe, the synchronous bevel gear rod is limited by the gear ring to rotate in a meshed mode, the static sleeve extends outwards along the swing seat in a sliding mode and finally stops in the inlet area of the circulating pipe, the entering air flow of the circulating pipe is filtered by impurities, the static sleeve extrudes the retractable clamping plate to automatically reset along with the operation of the cooling mechanism of the equipment, the accumulated impurities at the end part of the static electricity sleeve are scraped by the telescopic clamping plate and the side wall of the guide frame in a matching way and directly fall into the cleaning box, and then the purpose of automatically filtering and collecting the impurities is achieved, so that adverse factors influencing the stability of equipment testing are further eliminated.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is a front sectional view of a connecting portion of a circulating pipe and the like of the present invention;

FIG. 3 is a front cross-sectional view of a vortex tube or the like connection of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 1;

fig. 5 is a front cross-sectional view of the filter mechanism of the present invention.

In the figure: 1. a housing; 2. a rotor; 3. a cooling mechanism; 31. a circulating pipe; 32. a transmission gear; 33. a toothed plate; 34. a brush head; 35. a hinged lever; 36. a vortex tube; 37. a spring block; 38. a piston sleeve; 39. a connecting rod; 4. a filtering mechanism; 41. a guide frame; 42. a retractable card board; 43. a swing seat; 44. a bevel gear rod; 45. a curved groove; 46. an electrostatic sleeve; 47. adjusting a rod; 48. and (6) cleaning the box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-3, a dynamic contact resistance testing device of a high voltage circuit breaker for improving stability includes a housing 1, a rotor 2 is rotatably connected to the bottom of an inner cavity of the housing 1, a cooling mechanism 3 is movably connected to the inner cavity of the housing 1, the cooling mechanism 3 includes a circulating tube 31, a through groove adapted to a tooth plate 33 is formed on one side of a side wall of the circulating tube 31 close to the center of the housing 1, the through groove is slidably connected to a brush head 34, the tooth plate 33 can seal the through groove when the brush head 34 is retracted into the inner cavity of the circulating tube 31, a position-limiting sleeve adapted to a connecting rod 39 is rotatably connected to a rear wall of the circulating tube 31, so that the connecting rod 39 can stably deflect on a transverse plane, a transmission gear 32 is rotatably connected to the bottom of the inner cavity of the circulating tube 31, the tooth plates 33 are slidably connected to left and right ends of the transmission gear 32 on an inner wall of the circulating tube 31, the brush head 34 extending to the rotor 2 is slidably inserted to a side wall of the circulating tube 31, swing joint has articulated pole 35 between brush head 34 and the pinion rack 33, the inner chamber top of circulation pipe 31 rotates and is connected with vortex tube 36, the inner chamber top sliding connection of vortex tube 36 has symmetrical bullet 37, the bottom of vortex tube 36 slides and pegs graft there is piston sleeve 38, the annular with the connecting rod 39 adaptation is seted up to the periphery of piston sleeve 38, thereby be convenient for piston sleeve 38 to move connecting rod 39 and shift up or descend when rotatory, swing joint has connecting rod 39 between piston sleeve 38 and the drive gear 32, it is automatic to keep apart brush head 34 in testing arrangement's inside when rotating through design vortex tube 36, and carry out the cooling mechanism of pertinence rapid cooling, then the stability of the long-time test of device has been promoted.

Example two:

referring to fig. 1, 4 and 5, a dynamic contact resistance testing device for a high voltage circuit breaker with improved stability further includes a filtering mechanism 4, the filtering mechanism 4 is movably connected to the top of a housing 1, the filtering mechanism 4 includes a guiding frame 41, symmetrical retractable clamping plates 42 are fixedly connected to both left and right sides of the guiding frame 41, the top of the housing 1 is rotatably connected to a symmetrical swing seat 43, an arc-shaped groove adapted to an adjusting rod 47 is formed at the rear end of the swing seat 43, the adjusting rod 47 is movably connected to the swing seat 43, so that when the adjusting rod 47 is driven to move upwards, the swing seat 43 is driven to correspondingly deflect towards the central area of the top of the housing 1, a conical tooth rod 44 is rotatably connected to the swing seat 43, a tooth ring meshed with the conical tooth rod 44 is fixedly connected to the top of the housing 1, so that the conical tooth rod 44 can rotate when driven to deflect, a curved groove 45 is formed on the periphery of the conical tooth rod 44, sliding connection has static cover 46 on pendulum seat 43, the inner wall fixedly connected with of static cover 46 extends to the guide pin in curved groove 45, thereby when being convenient for awl ratch 44 to drive curved groove 45 and rotate, adjustable static cover 46 slides in and out on pendulum seat 43, swing joint has regulation pole 47 between pendulum seat 43 and the connecting rod 39, the equal sliding connection in top left and right sides of casing 1 has cleaning box 48, when the through-put heat dissipation, static cover 46 operates in the import department of following flow tube 31 and carries out the absorption of impurity, when the cooperation finishes the heat dissipation, utilize guide frame 41 and flexible cardboard 42 to strike off the tip impurity of static cover 46, reuse cleaning box 48 to collect, thereby further reduced the device test and received the influence of harmful factor.

Example three:

referring to fig. 1-5, a dynamic contact resistance testing device of a high voltage circuit breaker for improving stability includes a housing 1, a rotor 2 is rotatably connected to the bottom of an inner cavity of the housing 1, a cooling mechanism 3 is movably connected to the inner cavity of the housing 1, the cooling mechanism 3 includes a circulating tube 31, a through groove adapted to a tooth plate 33 is formed on one side of a side wall of the circulating tube 31 close to the center of the housing 1, the through groove is slidably connected to a brush head 34, the tooth plate 33 can seal the through groove when the brush head 34 is retracted into the inner cavity of the circulating tube 31, a position-limiting sleeve adapted to a connecting rod 39 is rotatably connected to a rear wall of the circulating tube 31, so that the connecting rod 39 can stably deflect on a transverse plane, a transmission gear 32 is rotatably connected to the bottom of the inner cavity of the circulating tube 31, the tooth plates 33 are slidably connected to left and right ends of the transmission gear 32 on an inner wall of the circulating tube 31, the brush head 34 extending to the rotor 2 is slidably inserted to a side wall of the circulating tube 31, the hinged rod 35 is movably connected between the brush head 34 and the toothed plate 33, the top of the inner cavity of the circulating tube 31 is rotatably connected with a vortex tube 36, symmetrical elastic blocks 37 are slidably connected to the top of the inner cavity of the vortex tube 36, a piston sleeve 38 is slidably inserted to the bottom of the vortex tube 36, a ring groove matched with the connecting rod 39 is formed in the periphery of the piston sleeve 38, so that the connecting rod 39 is driven to move upwards or downwards when the piston sleeve 38 rotates, the connecting rod 39 is movably connected between the piston sleeve 38 and the transmission gear 32, the circulating tube 31 capable of sealing and isolating the brush head 34 is designed, after a single test is finished, the vortex tube 36 is driven to operate to enable the vortex tube 36 to generate cooling airflow from top to bottom, the elastic blocks 37 on the two sides in the vortex tube 36 are subjected to back displacement under the inertia effect, the piston sleeve 38 can be driven to move upwards by utilizing an air pressure balance mechanism, and the corresponding connecting rod 39 pulls the transmission gears 32 on the two sides to deflect, make corresponding pinion rack 33 pulling hinge rod 35 drive brush head 34 break away from rotor 2 and retract into the inner chamber of circulation pipe 31 to make another pinion rack 33 just seal logical groove, avoid the cooling air current to leak, then can be powerful effectual carry out rapid cooling to brush head 34, make it can drop into remaining test as soon as possible, thereby the effectual stability ability who improves the test.

The filtering mechanism 4 is movably connected to the top of the casing 1, the filtering mechanism 4 comprises a guide frame 41, the left side and the right side of the guide frame 41 are fixedly connected with symmetrical telescopic clamping plates 42, the top of the casing 1 is rotatably connected with symmetrical swing seats 43, the rear end of the swing seat 43 is provided with an arc-shaped groove matched with the adjusting rod 47, the adjusting rod 47 is movably connected with the swing seats 43, so that when the adjusting rod 47 is driven to move upwards, the swing seat 43 can be driven to correspondingly deflect towards the central area of the top of the casing 1, the swing seat 43 is rotatably connected with a conical tooth rod 44, the top of the casing 1 is fixedly connected with a tooth ring meshed with the conical tooth rod 44, so that the conical tooth rod 44 can rotate when driven to deflect, the periphery of the conical tooth rod 44 is provided with a curved groove 45, the swing seat 43 is slidably connected with an electrostatic sleeve 46, the inner wall of the electrostatic sleeve 46 is fixedly connected with a guide pin extending into the curved groove 45, so that when the conical tooth rod 44 drives the curved groove 45 to rotate, the adjustable static sleeve 46 slides in or out of the swing seat 43, the adjusting rod 47 is movably connected between the swing seat 43 and the connecting rod 39, the cleaning box 48 is slidably connected to both the left and right sides of the top of the housing 1, when the corresponding circuit components are cooled by the device, the static sleeve 46 synchronously runs through electricity to generate a static field on the surface thereof, the adjusting rod 47 moves upwards to drive the swing seat 43 to deflect towards one side of the inlet of the circulating tube 31, the synchronous bevel gear rod 44 is limited by the gear ring to rotate in a meshing manner, the static sleeve 46 simultaneously slides outwards along the swing seat 43 and finally stops at the inlet area of the circulating tube 31, the impurities in the inlet air flow of the circulating tube 31 are filtered, the static sleeve 46 automatically resets after being extruded through the telescopic clamping plate 42 as the cooling mechanism of the device is finished running, and the impurities accumulated at the end of the static sleeve 46 are scraped by the telescopic clamping plate 42 in cooperation with the side wall of the guide frame 41, directly falls into the cleaning box 48, and then achieves the purpose of automatically filtering and collecting impurities, thereby further eliminating adverse factors influencing the stability of equipment testing.

The working principle is as follows: the online feeding device for intelligent manufacturing of the glass products drives the vortex tube 36 to run in time after the dynamic contact resistance test is finished by a single time, so that the vortex tube 36 generates cooling air flow from top to bottom, the elastic blocks 37 on two sides in the synchronous vortex tube 36 are displaced backwards under the action of inertia, an air pressure balance mechanism is utilized to drive the piston sleeve 38 to move upwards, the corresponding connecting rod 39 pulls the transmission gear 32 on the left side to deflect clockwise, the transmission gear 32 on the right side deflects anticlockwise, so that the corresponding toothed plate 33 pulls the hinge rod 35 to enable the brush head 34 to be separated from the rotor 2 and to be retracted into the inner cavity of the circulating tube 31, the other toothed plate 33 just seals the through groove, the cooling air flow is prevented from leaking outwards, the brush head 34 can be cooled rapidly and can be put into the rest test as soon as possible, and the stability of the test is effectively improved, in addition, when the apparatus cools the corresponding circuit components, the electrostatic sleeve 46 is simultaneously energized to operate on its surface to generate an electrostatic field, the adjusting rod 47 moves upward to drive the swing seat 43 to deflect toward the side of the inlet of the circulating pipe 31, and the synchronous bevel gear rod 44 is restricted by the gear ring to rotate in a meshing manner, under the action of the connecting pin extending from the inner wall of the electrostatic sleeve 46 into the curved slot 45, the electrostatic sleeve 46 slides outwards along the swing seat 43, finally stops at the inlet area of the circulating pipe 31, the entering air flow of the circulating pipe 31 is filtered by impurities, and as the cooling mechanism of the equipment is finished, the electrostatic sleeve 46 is extruded by the telescopic clamping plate 42 to automatically reset, the accumulated impurities at the end of the electrostatic sleeve 46 are scraped by the retractable clamping plate 42 and the side wall of the guide frame 41, and directly fall into the cleaning box 48, and then the purpose of automatically filtering and collecting the impurities is achieved, so that adverse factors influencing the stability of equipment testing are further eliminated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an improve high voltage circuit breaker dynamic contact resistance testing arrangement of stability, includes casing (1), its characterized in that: the inner chamber bottom of casing (1) rotates and is connected with rotor (2), the inner chamber swing joint of casing (1) has cooling body (3), cooling body (3) are including following flow pipe (31), the inner chamber bottom of following flow pipe (31) rotates and is connected with drive gear (32), the inner wall of following flow pipe (31) the equal sliding connection in both ends has pinion rack (33) about drive gear (32), the lateral wall of following flow pipe (31) slides and pegs graft and has extend to brush head (34) on rotor (2), swing joint has articulated rod (35) between brush head (34) and pinion rack (33), the inner chamber top of following flow pipe (31) rotates and is connected with vortex tube (36), the inner chamber top sliding connection of vortex tube (36) has symmetrical bullet piece (37), the bottom sliding peg graft of vortex tube (36) has piston cover (38), a connecting rod (39) is movably connected between the piston sleeve (38) and the transmission gear (32).

2. The high-voltage circuit breaker dynamic contact resistance testing device with improved stability of claim 1, wherein: one side of the side wall of the circulating pipe (31), which is close to the center of the shell (1), is provided with a through groove matched with the toothed plate (33).

3. The high-voltage circuit breaker dynamic contact resistance testing device with improved stability of claim 1, wherein: the rear wall of the circulating pipe (31) is rotatably connected with a limiting sleeve matched with the connecting rod (39).

4. The high-voltage circuit breaker dynamic contact resistance testing device with improved stability of claim 1, wherein: and a ring groove matched with the connecting rod (39) is formed in the periphery of the piston sleeve (38).

5. The high-voltage circuit breaker dynamic contact resistance testing device with improved stability of claim 1, wherein: still include filtering mechanism (4), filtering mechanism (4) swing joint be in the top of casing (1), filtering mechanism (4) are including direction frame (41), the flexible cardboard (42) of the equal fixedly connected with symmetry in the left and right sides of direction frame (41), the top swivelling joint of casing (1) has pendulum seat (43) of symmetry, the swivelling joint has awl ratch (44) on pendulum seat (43), curved groove (45) have been seted up to the periphery of awl ratch (44), sliding connection has static cover (46) on pendulum seat (43), pendulum seat (43) with swing joint has regulation pole (47) between connecting rod (39), the equal sliding connection of the top left and right sides of casing (1) has clearance case (48).

6. The high-voltage circuit breaker dynamic contact resistance testing device with improved stability of claim 5, wherein: the top of the shell (1) is fixedly connected with a gear ring meshed with the bevel gear rod (44).

7. The high-voltage circuit breaker dynamic contact resistance testing device with improved stability of claim 5, wherein: the rear end of the swing seat (43) is provided with an arc-shaped groove matched with the adjusting rod (47).

8. The high-voltage circuit breaker dynamic contact resistance testing device with improved stability of claim 5, wherein: the inner wall of the static electricity sleeve (46) is fixedly connected with a guide pin extending into the curved groove (45).