CN113376410B - Coupling signal transmitting device - Google Patents
Coupling signal transmitting device Download PDFInfo
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- CN113376410B CN113376410B CN202110687522.3A CN202110687522A CN113376410B CN 113376410 B CN113376410 B CN 113376410B CN 202110687522 A CN202110687522 A CN 202110687522A CN 113376410 B CN113376410 B CN 113376410B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The invention provides a coupling signal transmitting device which comprises a non-handle upper pincer-shaped device, a handle lower pincer-shaped device and a driving gear device with a handle, wherein the non-handle upper pincer-shaped device and the handle lower pincer-shaped device are of semicircular structures, the driving gear device with the handle is fixed at the tail of the non-handle upper pincer-shaped device, and the tail of the non-handle upper pincer-shaped device and the tail of the handle lower pincer-shaped device are combined together through a positioning pin and positioning table boards of two shells. The upper part pincerlike device without the handle comprises a pincerlike shell without the handle, an upper half magnetic core, a first magnet exciting coil, an upper part magnetic conduction sleeve and an upper part travel guide rail; the lower pincerlike device with the handle comprises a pincerlike shell with the handle, a lower half magnetic core, a second excitation coil, a lower magnetic conduction sleeve and a lower stroke guide rail; the problem that the magnetic core influences the test accuracy and the effectiveness due to impact deformation and leakage of the magnetic induction line can be effectively solved.
Description
Technical Field
The invention relates to the technical field of power system devices, in particular to a coupling signal transmitting device.
Background
At present, as cities develop, overhead lines cannot meet the power supply requirements of power systems for the cities, and underground cables have the characteristics of concealment safety and the like and are dominant in urban power supply networks.
With the increase of the number of underground cables, the number of faults also increases, and a large amount of work of path inquiry, cable identification and the like is often needed.
For the live cable, because the live cable cannot directly contact the cable core part, a coupling mode is usually used for coupling signals into the cable, and the whole cable is provided with coupled test signals, so that the path query and cable identification work is completed.
The most commonly used means for coupling the transmitted signals are pincer-type coupling devices. The main part of the common coupling device is that two semicircular magnetic cores are embedded in a shell and are in direct contact with each other to form a closed magnetic circuit, and a test signal generated by an excitation coil can be coupled into a cable through a closed loop formed by the coupling device.
Because of structural problems, two semicircular magnetic cores are very easy to deform through multiple times of closing impact, and the magnetic core closing is affected to a certain degree by dust, contamination and magnetic core rust on site. The occurrence of signal instability reduces the accuracy and precision of the measurement. In addition, because the magnetic circuit is not closed tightly, the leakage of the magnetic induction line has influence on the non-target cable, and the work of path query, cable identification and the like cannot be accurately carried out. The unstable signal and the leakage signal can greatly increase the workload of path patrol, and in severe cases, the path patrol can be misjudged and misjudged. Causing great economic loss and safety accidents.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a coupling signal transmitting device which can effectively solve the problem that the magnetic core is deformed due to impact and leakage of a magnetic induction line to influence the testing accuracy and the effectiveness.
In order to achieve the purpose, the invention adopts the following technical scheme:
a coupling signal transmitting device comprises a non-handle upper pincerlike device, a handle lower pincerlike device and a driving gear device with a handle, wherein the non-handle upper pincerlike device and the handle lower pincerlike device are of semicircular structures, the driving gear device with the handle is fixed at the tail of the non-handle upper pincerlike device, and the tail of the non-handle upper pincerlike device and the tail of the handle lower pincerlike device are combined together through a positioning pin and positioning table tops of two shells.
The upper part pincerlike device without the handle comprises a pincerlike shell without the handle, an upper half magnetic core, a first magnet exciting coil, an upper part magnetic conduction sleeve and an upper part travel guide rail; the magnet exciting coil is sleeved on the upper half magnetic core, the upper half magnetic core and the upper stroke guide rail are fixed on the non-handle pincerlike shell, the upper stroke guide rail is arranged on the upper portion of the upper half magnetic core and matched with the peripheral shape of the upper half magnetic core, and the upper magnetic conduction sleeve is sleeved outside the upper half magnetic core and fixed on the upper stroke guide rail and can slide in the non-handle pincerlike shell along with the upper stroke guide rail.
The lower pincerlike device with the handle comprises a pincerlike shell with the handle, a lower half magnetic core, a second excitation coil, a lower magnetic conduction sleeve and a lower stroke guide rail; the magnet exciting coil is sleeved on the lower half magnetic core, the lower half magnetic core and the lower stroke guide rail are fixed on the pincer-shaped shell with the handle, the lower stroke guide rail is arranged at the lower part of the lower half magnetic core and matched with the peripheral shape of the lower half magnetic core, and the lower magnetic conduction sleeve is sleeved outside the lower half magnetic core and fixed on the lower stroke guide rail and can slide in the pincer-shaped shell with the handle along with the lower stroke guide rail.
The driving gear device with the handle comprises a driving gear and a driving gear handle.
When the upper pincerlike device without the handle and the two semicircles of the lower pincerlike device with the handle are closed together, the upper magnetic conduction sleeve pipe slides into the lower pincerlike shell with the handle through the opening, and the lower magnetic conduction sleeve pipe slides into the upper pincerlike shell without the handle through the opening; when the two semicircles of the upper pincer without handle and the lower pincer with handle are closed together, there is a 1mm +/-20% spacing between the two magnetic cores.
Pressing two handles, when no handle upper portion pincerlike device and two semicircles of taking handle lower part pincerlike device still closed together, upper portion magnetic conduction sleeve pipe follows upper portion stroke guide rail and rotates along the circular axis of no handle pincerlike shell, and upper portion magnetic conduction sleeve pipe retracts inside the shell completely, and lower portion magnetic conduction sleeve pipe follows lower portion stroke guide rail and rotates along the circular axis that has handle pincerlike shell, and lower portion magnetic conduction sleeve pipe also retracts inside the shell completely.
And the driven speed change gears comprise a large gear and a small gear, the large gear is meshed with the upper travel guide rail/the lower travel guide rail, and the small gear is meshed with the transmission belt.
Furthermore, the driving gear device with the handle comprises a driving gear, a driving gear handle, a linkage rod and a spring positioning column, the driving gear is installed on the pincer-shaped shell without the handle through a central positioning hole and a positioning pin, a driving gear and a pinion in the driven speed change gear are connected through a transmission belt, two ends of an auxiliary spring are hung on the spring positioning column of the pincer-shaped shell without the handle and the spring positioning column of the driving gear respectively, the driving gear rotates when the driving gear handle is pulled down, and the driven speed change gear is driven to rotate through the belt.
The clamp-shaped shell with the handle and the clamp-shaped shell without the handle are combined together through the positioning pin and the positioning table surface of the two shells, the center of the main spring is sleeved on the positioning pin, the two branches of the main spring are respectively propped against the two clamp-shaped shells, and the limiting stop column is used for limiting the main spring.
Furthermore, the upper magnetic sleeve and the lower magnetic sleeve are made of high magnetic materials, the whole magnetic sleeve is arc-shaped and can be sleeved on the magnetic core and slide, and the magnetic sleeve is provided with a Teflon coating layer for reducing the friction force between the magnetic sleeve and the magnetic core.
Furthermore, the upper travel guide rail and the lower travel guide rail are arc guide rails with saw-toothed outer edges, are fixed on the magnetic conduction sleeve and are used for driving the magnetic conduction sleeve.
Furthermore, the upper half magnetic core and the lower half magnetic core are semicircular magnetic cores, the closed openings of the two magnetic cores have a distance of 1mm +/-20% for preventing the magnetic cores from colliding when being closed, insulating protective paint is sprayed on the surfaces of the magnetic cores, and a Teflon coating is used for reducing the friction force between the magnetic cores and the magnetic conduction sleeve.
Further, two exciting coils are respectively wound on the two magnetic cores and are connected in parallel or in series, and if a series coil is selected, the number of turns of a single exciting coil is half of that of a parallel single coil.
The use method of the coupling signal transmitting device comprises the following steps:
step one, pressing two handles, wherein the elasticity of a main spring is far greater than that of an auxiliary spring, the auxiliary spring is stretched firstly, the driving gear rotates and the two pincerlike shells do not move relatively, the driving gear rotates to drive a transmission belt to rotate, the transmission belt drives two driven speed change gears to rotate, the two driven speed change gears respectively drive two stroke guide rails, the stroke guide rails are fixed on a magnetic conduction sleeve, and the magnetic conduction sleeve rotates along a circular central axis of the pincerlike shells along the stroke guide rails, so that the magnetic conduction sleeves are completely retracted into the respective shells;
step two, further pressing the two handles, enabling the driving gear handle to be in contact with the pincerlike shell without the handles and to be kept relatively static, enabling the driving gear to not drive a transmission belt to move, and enabling the upper magnetic conduction sleeve and the upper magnetic core to be kept relatively static; the driving gear and the pincer-shaped shell with the handle continue to move relatively, the lower magnetic conduction sleeve continues to move, and the pressing of the driving gear handle can drive the pincer-shaped shell without the handle to continue to rotate by taking the positioning pin as the center of a circle, so that the pincer-shaped opening is opened;
step three, the whole device is clamped and sleeved on a cable to be tested;
and step four, loosening the handle, wherein the elasticity of the main spring is far greater than that of the auxiliary spring, so that the device is closed firstly, the lower magnetic conduction sleeve moves towards the jaw, when the jaw is closed, one end of the lower magnetic conduction sleeve contacts the jaw, the displacement of the lower magnetic conduction sleeve relative to the upper magnetic conduction sleeve is the same, the driving handle is continuously loosened after the jaw is closed, the driving gear does not keep relative rest with the shell any more, the driving belt is driven, the upper magnetic conduction sleeve and the lower magnetic conduction sleeve move simultaneously and extend into the shell of the other side through the opening at the end part of the shell, and the interface of the two magnetic cores is sleeved and returns to the initial state.
Compared with the prior art, the invention has the beneficial effects that:
1) the upper half magnetic core and the lower half magnetic core are fixed in the two pincerlike shells, and when the pincerlike shells are closed, the magnetic cores are closed, but gaps are reserved at the closed positions to prevent the magnetic cores from being closed and impacting.
2) The magnetic conduction sleeve can cover the closed interface of the two magnetic cores when the magnetic conduction sleeve is closed, and the contact area of the magnetic conduction sleeve is far larger than the section area of the magnetic cores. The magnetic induction line in the upper half magnetic core can be conducted to the lower half magnetic core through the magnetic conduction sleeve. The magnetic conduction sleeve pipe uses high magnetic conduction material (such as 1j85 type permalloy), the material, size and structural design of the magnetic conduction sleeve pipe enable the magnetic saturation degree to be far higher than that of the magnetic core, the magnetic resistance of the whole loop cannot be increased, and meanwhile, the magnetic conduction sleeve pipe at the interface can also form an effective magnetic shielding layer so as to prevent magnetic induction lines from leaking.
Drawings
FIG. 1 is a schematic diagram of a coupled signal transmitting device according to the present invention;
FIG. 2 is a block diagram of the upper pliers-shaped device of the present invention without handles;
FIG. 3 is a view showing the structure of the driving gear device with handle according to the present invention;
FIG. 4 is an installation view of the handleless upper pincer assembly of the present invention with a drive gear assembly having a handle;
FIG. 5 is an overall installation view of the present invention;
FIG. 6 is an overall exploded view of the present invention;
FIG. 7 is a block diagram of the jaw closed state of the present invention;
FIG. 8 is a block diagram of the jaw closed position of the present invention with the handle initially depressed;
fig. 9 is a view showing the structure of the open jaw state after the final pressing of the handle according to the present invention.
In the figure: 1-no-handle pincerlike shell 2-handle pincerlike shell 3-lower half magnetic core 4-upper half magnetic core 5-lower magnetic conduction sleeve 6-upper magnetic conduction sleeve 7-lower travel guide rail 8-upper travel guide rail 9-excitation coil I10-excitation coil II 11-driven speed change gear I12-driven speed change gear II 13-auxiliary spring 14-main spring 15-driving gear device 16 with handle-driving belt I17-driving belt II 18-positioning pin 19-no-handle pincerlike shell cover plate 20-handle pincerlike shell cover plate 151-driving gear 152-driving gear 153-linkage rod 154-spring positioning column.
Detailed Description
The following detailed description of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1 to 9, a coupling signal transmitting device includes a non-handle upper pincer-shaped device (housing 1), a lower pincer-shaped device (housing 2) with a handle, and a driving gear device (housing 2) with a handle, where the non-handle upper pincer-shaped device (housing 1) and the lower pincer-shaped device (housing 2) with a handle are both semicircular structures, the driving gear device (housing 15) with a handle is fixed at the tail of the non-handle upper pincer-shaped device (housing 1), and the tails of the non-handle upper pincer-shaped device (housing 1) and the lower pincer-shaped device (housing 2) with a handle are combined together through a positioning pin 18 and a positioning table of the two housings.
Referring to fig. 2, the upper pincerlike device without a handle (shell 1) comprises a pincerlike shell 1 without a handle, an upper half magnetic core 4, a first excitation coil 9, an upper magnetic conduction sleeve 6 and an upper travel guide rail 8; the first excitation coil 9 is sleeved on the upper half magnetic core 4, the upper half magnetic core 4 and the upper stroke guide rail 8 are fixed on the handleless pincer-shaped shell 1, the upper stroke guide rail 8 is arranged on the upper portion of the upper half magnetic core 4 and matched with the peripheral shape of the upper half magnetic core 4, and the upper magnetic conduction sleeve 6 is sleeved outside the upper half magnetic core 4, fixed on the upper stroke guide rail 8 and capable of sliding in the handleless pincer-shaped shell 1 along with the upper stroke guide rail 8.
The lower pincerlike device (shell 2) with the handle comprises a pincerlike shell 2 with the handle, a lower half magnetic core 3, a second excitation coil 10, a lower magnetic conduction sleeve 5 and a lower stroke guide rail 7; the second excitation coil 10 is sleeved on the lower half magnetic core 3, the lower half magnetic core 3 and the lower stroke guide rail 7 are fixed on the pincer-shaped shell 2 with the handle, the lower stroke guide rail 7 is arranged at the lower part of the lower half magnetic core 3 and matched with the peripheral shape of the lower half magnetic core 3, and the lower magnetic conduction sleeve 5 is sleeved outside the lower half magnetic core 3 and fixed on the lower stroke guide rail 7 and can slide in the pincer-shaped shell 2 with the handle along with the lower stroke guide rail 7.
Both the handleless pincer-like housing 1 and the handled pincer-like housing 2 have corresponding detents for placing the magnetic cores 3 and 4 and for fixing the magnetic cores 3 and 4 to the coupling device.
The handle gear assembly 15 includes a gear pinion 151 and a gear pinion handle 152.
The non-handle pincerlike shell 1 is provided with openings at the corresponding positions of the two end parts of the upper half magnetic core 4, the pincerlike shell 2 with the handle is also provided with openings at the corresponding positions of the two end parts of the lower half magnetic core 3, when the two semicircles of the non-handle upper pincerlike device and the non-handle lower pincerlike device are closed together, the upper magnetic conduction sleeve 6 slides into the lower pincerlike shell 2 with the handle through the openings, and the lower magnetic conduction sleeve 5 slides into the upper non-handle pincerlike shell 1 through the openings; when the two semicircles of the upper pincer without handle and the lower pincer with handle are closed together, there is a 1mm +/-20% spacing between the two magnetic cores 3 and 4.
Pressing two handles (driving gear handle 15 and handle on the forcipated shell 2 with handle), when two semicircles of the forcipated device on the upper portion without handle and the forcipated device on the lower portion with handle are still closed together, the upper portion magnetic conduction sleeve 6 rotates along the circular central axis of the forcipated shell 1 without handle along with the upper portion stroke guide rail 8, the upper portion magnetic conduction sleeve 6 completely retracts to the inside of the shell 1, the lower portion magnetic conduction sleeve 5 rotates along the circular central axis of the forcipated shell 2 with the lower portion stroke guide rail 7, and the lower portion magnetic conduction sleeve 5 also completely retracts to the inside of the shell 2.
The automatic transmission device also comprises two driven speed change gears 11 and 12 which are respectively fixed on the upright posts of the non-handle pincerlike shell 1 and the pincerlike shell 2 with the handle and are used for playing a transmission role, wherein the driven speed change gears 11 and 12 comprise a large gear and a small gear, the large gear is meshed with the upper travel guide rail 8/the lower travel guide rail 7, and the small gear is meshed with the transmission belts 16 and 17.
The driving gear device 15 with the handle comprises a driving gear 151, a driving gear handle 152, a linkage 153 and a spring positioning column 154, wherein the driving gear 151 is installed on the pincer-shaped shell 1 without the handle through a central positioning hole and a positioning pin, the driving gear 151 and the pinions in the driven speed-changing gears 11 and 12 are connected through transmission belts 16 and 17, two ends of an auxiliary spring 13 are hung on the spring positioning column 154 of the spring positioning column of the pincer-shaped shell 1 without the handle and the driving gear 151 respectively, when the driving gear handle 152 is pulled down, the driving gear 151 rotates, and the driven speed-changing gears 11 and 12 are driven to rotate through the belts 16 and 17.
The clamp-shaped shell with the handle is characterized by further comprising a main spring 14, the clamp-shaped shell 2 with the handle and the clamp-shaped shell 1 without the handle are combined together through a positioning pin 18 and a positioning table surface of the two shells, the main spring 14 is installed inside the two clamp-shaped shells 1 and 2, the center of the main spring 14 is sleeved on the positioning pin, two branches of the main spring 14 respectively abut against the two clamp-shaped shells 1 and 2, and a limiting stop column is used for limiting the main spring 14.
The upper magnetic sleeve 6 and the lower magnetic sleeve 5 are made of high magnetic materials (such as 1J85 permalloy), the magnetic sleeves 5 and 6 are integrally arc-shaped and can be sleeved on the magnetic cores 3 and 4 to slide, and the magnetic sleeves 5 and 6 are provided with a Teflon coating layer for reducing the friction force between the magnetic sleeves 5 and 4 and the magnetic cores.
The upper travel guide rail 8 and the lower travel guide rail 7 are arc guide rails with saw-toothed outer edges, are fixed on the magnetic conduction sleeves 6 and 5 and are used for driving the magnetic conduction sleeves 6 and 5.
First magnetic core 4 and second magnetic core 3 are half round magnetic core, and two magnetic core closure mouths have 1mm interval and are used for preventing the magnetic core and collide when closed. The surfaces of the magnetic cores 3 and 4 are sprayed with insulating protective paint and are coated with a teflon coating to reduce friction with the magnetic conducting sleeves 5 and 6.
Two exciting coils 9 and 10 are wound around the two magnetic cores 4 and 3, respectively, and connected in parallel or in series, and if a series coil is selected, the number of turns of a single exciting coil is half that of the number of turns of a single parallel coil.
The shell cover 19 without handle and the shell cover 20 with handle are combined into a whole shell.
The tong-shaped housing 2 with the handle is also provided with a driven speed change gear 12 and is connected with a driving gear 151 through a transmission belt 17.
The use method of the coupling signal transmitting device comprises the following steps:
step one, pressing two handles (a driving gear handle 15 and a handle on a pincerlike shell 2 with the handle), wherein the elasticity of a main spring 14 is far larger than that of an auxiliary spring 13, the auxiliary spring 13 is firstly stretched, the driving gear 151 rotates but the two pincerlike shells do not move relatively, the driving gear 151 rotates to drive transmission belts 16 and 17 to rotate, the transmission belts 16 and 17 drive two driven variable-speed gears 11 and 12 to rotate, the two driven variable-speed gears 11 and 12 respectively drive two stroke guide rails 8 and 7, the stroke guide rails 8 and 7 are fixed on magnetic conduction sleeves 6 and 5, and the magnetic conduction sleeves 6 and 5 rotate along the circular central axes of the pincerlike shells along with the stroke guide rails 8 and 7, so that the magnetic conduction sleeves 6 and 5 are completely retracted into the respective shells;
step two, further pressing the two handles, enabling the driving gear handle 152 to be in collision with the pincerlike shell 1 without the handles and to be kept relatively static, enabling the driving gear 151 not to drive the transmission belts 16 and 17 to move, and enabling the upper magnetic conduction sleeve 6 and the upper magnetic core 4 to be kept relatively static; the driving gear 151 and the pincer-shaped shell 2 with the handle continue to move relatively, the lower magnetic conduction sleeve 5 continues to move, and pressing the driving gear handle 152 can drive the pincer-shaped shell 1 without the handle to continue to rotate by taking the positioning pin 18 as the center of a circle, so that the pincer-shaped opening is opened;
step three, the whole device is clamped and sleeved on a cable to be tested;
and step four, loosening the handle, wherein the main spring 14 force is far greater than that of the auxiliary spring 13, so that the device is closed firstly, the lower magnetic conduction sleeve 5 moves towards the jaw, when the jaw is closed, one end of the lower magnetic conduction sleeve 5 contacts the jaw, the displacement relative to the upper magnetic conduction sleeve 6 is the same, the driving handle is continuously loosened after the jaw is closed, the driving gear 151 does not keep relative rest with the shell 1 any more, the driving belts 16 and 17 are driven, the upper magnetic conduction sleeve 6 and the lower magnetic conduction sleeve 5 move simultaneously and extend into the shell of the other side through the opening at the end part of the shell, and the interface of the two magnetic cores is sleeved and returns to the initial state.
The above embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the above embodiments. The methods used in the above examples are conventional methods unless otherwise specified.
Claims (9)
1. A coupling signal transmitting device comprises a non-handle upper pincer-shaped device, a handle lower pincer-shaped device and a driving gear device with a handle, wherein the non-handle upper pincer-shaped device and the handle lower pincer-shaped device are of semicircular structures, the driving gear device with the handle is fixed at the tail of the non-handle upper pincer-shaped device, and the tail of the non-handle upper pincer-shaped device and the tail of the handle lower pincer-shaped device are combined together through a positioning pin and positioning table tops of two shells;
the upper pincerlike device without the handle is characterized by comprising a pincerlike shell without the handle, an upper half magnetic core, a first magnet exciting coil, an upper magnetic conducting sleeve and an upper stroke guide rail; the magnet exciting coil I is sleeved on the upper half magnetic core, the upper half magnetic core and the upper stroke guide rail are fixed on the non-handle pincerlike shell, the upper stroke guide rail is arranged at the upper part of the upper half magnetic core and matched with the peripheral shape of the upper half magnetic core, and the upper magnetic conducting sleeve is sleeved outside the upper half magnetic core and fixed on the upper stroke guide rail and can slide in the non-handle pincerlike shell along with the upper stroke guide rail;
the pincerlike device with the lower handle comprises a pincerlike shell with the handle, a lower half magnetic core, a second excitation coil, a lower magnetic conduction sleeve and a lower stroke guide rail; the excitation coil is sleeved on the lower half magnetic core, the lower half magnetic core and the lower stroke guide rail are fixed on the pincer-shaped shell with the handle, the lower stroke guide rail is arranged at the lower part of the lower half magnetic core and matched with the peripheral shape of the lower half magnetic core, and the lower magnetic conduction sleeve is sleeved outside the lower half magnetic core and fixed on the lower stroke guide rail and can slide in the pincer-shaped shell with the handle along with the lower stroke guide rail;
the driving gear device with the handle comprises a driving gear and a driving gear handle;
the upper magnetic conduction sleeve slides into the lower pincerlike shell with the handle through the opening, and the lower magnetic conduction sleeve slides into the upper pincerlike shell without the handle through the opening when the upper pincerlike device without the handle and the lower pincerlike device with the handle are closed together; when the two semicircles of the upper pincer-shaped device without the handle and the lower pincer-shaped device with the handle are closed together, the distance between the two magnetic cores is 1mm +/-20%;
pressing the two handles, when the upper pincerlike device without the handle and the two semicircles with the lower pincerlike device with the handle are still closed together, the upper magnetic conduction sleeve rotates along the circular central axis of the pincerlike shell without the handle along with the upper travel guide rail, the upper magnetic conduction sleeve completely retracts to the inside of the shell, the lower magnetic conduction sleeve rotates along the circular central axis of the pincerlike shell with the handle along with the lower travel guide rail, and the lower magnetic conduction sleeve also completely retracts to the inside of the shell.
2. A coupled signal transmitting device according to claim 1, further comprising two driven speed-change gears respectively fixed to the columns of the handleless pincer-like housing and the handled pincer-like housing for driving, wherein the driven speed-change gears comprise a large gear and a small gear, the large gear is engaged with the upper/lower stroke guide, and the small gear is engaged with the driving belt.
3. The coupling signal transmitting device of claim 2, wherein the driving gear assembly with the handle comprises a driving gear, a driving gear handle, a linkage rod, and a spring positioning post, the driving gear is mounted on the pincer-shaped housing without the handle through the center positioning hole and the positioning pin, the driving gear and the driven gear are connected by a driving belt, two ends of the auxiliary spring are respectively hung on the spring positioning post of the pincer-shaped housing without the handle and the spring positioning post of the driving gear, when the driving gear handle is pulled down, the driving gear rotates, and the driven gear rotates through the belt.
4. The coupled signal transmitting device of claim 3, further comprising a main spring, wherein the pincer-shaped housing with the handle and the pincer-shaped housing without the handle are combined together through a positioning pin and a positioning table of the two housings, the center of the main spring is sleeved on the positioning pin, the two branches of the main spring respectively abut against the two pincer-shaped housings, and the main spring is limited by a limiting stop column.
5. A coupled signal transmitter as claimed in claim 1, wherein the upper and lower magnetic sleeves are made of a highly magnetic material, the magnetic sleeve is arc-shaped and can be slipped over the core, and the magnetic sleeve has a teflon coating to reduce friction with the core.
6. The transmitter of claim 1, wherein the upper and lower travel rails are arc rails having saw-toothed outer edges and fixed to the magnetic sleeve for driving the magnetic sleeve.
7. A coupled signal transmitter as claimed in claim 1, wherein the upper and lower half cores are semicircular cores, the closed ends of the two cores have a distance of 1mm +/-20% for preventing collision when the cores are closed, the surface of the core is coated with an insulating protective paint, and a teflon coating is used to reduce friction with the magnetic sleeve.
8. A coupled signal transmitting device according to claim 1, wherein the two exciting coils are wound around the two magnetic cores, respectively, and are connected in parallel or in series, and the number of turns of the single exciting coil in series is half of that of the single coil in parallel.
9. The method of using a coupled signal transmitting device of claim 4, comprising the steps of:
step one, pressing two handles, wherein the elasticity of a main spring is far greater than that of an auxiliary spring, the auxiliary spring is stretched firstly, the driving gear rotates and the two pincerlike shells do not move relatively, the driving gear rotates to drive a transmission belt to rotate, the transmission belt drives two driven speed change gears to rotate, the two driven speed change gears respectively drive two stroke guide rails, the stroke guide rails are fixed on a magnetic conduction sleeve, and the magnetic conduction sleeve rotates along a circular central axis of the pincerlike shells along with the stroke guide rails, so that the magnetic conduction sleeves are completely retracted into the respective shells;
step two, further pressing the two handles, enabling the driving gear handle to be in contact with the non-handle pincerlike shell and keep relatively static, enabling the driving gear to not drive a transmission belt to move, and enabling the upper magnetic conduction sleeve and the upper half magnetic core to keep relatively static; the driving gear and the pincerlike shell with the handle continue to move relatively, the lower magnetic conduction sleeve continues to move, the handle of the driving gear is pressed to drive the pincerlike shell without the handle to continue to rotate by taking the positioning pin as the center of a circle, and thus the jaw is opened;
step three, the whole device is clamped and sleeved on a cable to be tested;
and step four, loosening the handle, wherein the elasticity of the main spring is far greater than that of the auxiliary spring, so that the device is closed firstly, the lower magnetic conduction sleeve moves towards the jaw, when the jaw is closed, one end of the lower magnetic conduction sleeve contacts the jaw, the displacement of the lower magnetic conduction sleeve relative to the upper magnetic conduction sleeve is the same, the handle of the driving gear is continuously loosened after the lower magnetic conduction sleeve is closed, the driving gear does not keep relative rest with the pincerlike shell without the handle any more, a transmission belt is driven, the upper magnetic conduction sleeve and the lower magnetic conduction sleeve move simultaneously and extend into the shell of the other side through the opening at the end part of the shell, and the interface of the two magnetic cores is sleeved and returns to the initial state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110687522.3A CN113376410B (en) | 2021-06-21 | 2021-06-21 | Coupling signal transmitting device |
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| CN202110687522.3A CN113376410B (en) | 2021-06-21 | 2021-06-21 | Coupling signal transmitting device |
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| CN113376410A CN113376410A (en) | 2021-09-10 |
| CN113376410B true CN113376410B (en) | 2022-06-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9203945D0 (en) * | 1992-02-25 | 1992-04-08 | Pringle Robert Eng Ltd | Measuring calliper |
| CN2862289Y (en) * | 2005-10-12 | 2007-01-24 | 袁力 | Clamp type current transformer |
| CN1971289B (en) * | 2005-11-26 | 2012-01-25 | 徐先 | A heavy current AC/DC dual-purpose clamp-current sensor |
| JP6018325B2 (en) * | 2013-02-07 | 2016-11-02 | ニューオンダー スペシャル エレクトリック カンパニー リミテッド | Openable / closable pliers-type gear mechanism, pliers-type gear opening / closing mechanism and winding machine |
| CN203838224U (en) * | 2014-04-15 | 2014-09-17 | 国家电网公司 | Opening and closing mechanism of clamp arm of current clamp meter |
| DE102015106562A1 (en) * | 2014-12-17 | 2016-06-23 | Gustav Klauke Gmbh | Crimping pliers, as well as gear with tooth teeth |
| CN205177592U (en) * | 2015-11-24 | 2016-04-20 | 深圳市创银科技股份有限公司 | Rotation type split core type current transformer |
| CN207081761U (en) * | 2017-06-01 | 2018-03-09 | 武汉拓普联合电力设备有限公司 | The powered identifier of cable |
| CN107913004B (en) * | 2017-07-26 | 2019-12-06 | 深圳市蓝海星科技有限公司 | Nut cracker |
| CN208140753U (en) * | 2018-05-09 | 2018-11-23 | 广东电网有限责任公司 | A kind of clamp on amperemeter of improvement |
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Effective date of registration: 20230306 Address after: 518000 1107B, Building A5, Tianrui Industrial Park, No. 35, Fuyuan 1st Road, Zhancheng Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong Province Patentee after: Shenzhen Qianyu Technology Co.,Ltd. Address before: 518000 411, Weifeng building, 6301 Bao'an Avenue, Qiaotou community, Fuhai street, Bao'an District, Shenzhen, Guangdong Patentee before: Shenzhen gengyujiang Technology Co.,Ltd. |