CN220542126U

CN220542126U - Comprehensive testing tool for tensile force and current of carbon brush spring in operation

Info

Publication number: CN220542126U
Application number: CN202321076708.6U
Authority: CN
Inventors: 秦一兮; 汤文豪
Original assignee: Jiangsu Huadian Kunshan Thermal Power Co ltd
Current assignee: Jiangsu Huadian Kunshan Thermal Power Co ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2024-02-27
Anticipated expiration: 2033-05-08

Abstract

The utility model provides a comprehensive testing tool for tensile force and current of a carbon brush spring in operation. The utility model provides a carbon brush spring pulling force and electric current integrated test instrument in operation includes the casing, the one end of casing is equipped with first current coil, the outside fixedly connected with current transformer of first current coil, the one end of current transformer is equipped with the second current coil. The shell of the running carbon brush spring tension and current comprehensive test tool provided by the utility model is insulated, can be directly held by hand, the anti-slip belt is placed between the positioning toothed plate and the second toothed plate, the shell is directly held by hand, the anti-slip belt is pulled, the product can be prevented from slipping in the pulling process, then the display screen is installed under the action of the placement groove, a user can display the detected current and tension through the display screen, record and store the current and the tension, then the pressure plate is rotated, so that the battery groove is conveniently closed, the lithium battery in the product is conveniently disassembled, and the user can conveniently charge the lithium battery.

Description

Comprehensive testing tool for tensile force and current of carbon brush spring in operation

Technical Field

The utility model relates to the technical field of carbon brushes of generators, in particular to a comprehensive testing tool for tension and current of a spring of a carbon brush in operation.

Background

The motor carbon brush is a generic term for a carbon brush of a motor and a carbon brush of a generator. The carbon brush of the motor is like a rubber strip for wiping a pencil, and leads are led out from the top of the carbon brush, so that the volume of the carbon brush is large and small.

The direct current motor is used for changing the current direction and dividing a direct current motor and an alternating current motor, and the direct current motor is used for changing the conductive coil of a rotor, so that the magnetic pole of the rotor is changed, and the movement of the motor is changed. The carbon brush is used on a commutator or a slip ring of the motor as a sliding contact body for leading out and leading in current, has good electric conduction, heat conduction and lubricating properties, and has certain mechanical strength and the instinct of commutating sparks. Almost all brush motors use carbon brushes, which are an important component of brush motors.

The carbon brush that uses at present is the constant voltage spring that uses almost all, and the uneven pressure of spring is extremely easy to cause each carbon brush pressure distribution inequality, leads to the current distribution inequality, and the bearing is great carbon brush, and the electric current is great, and bear the heavy current for a long time, leads to carbon brush performance degradation easily, and the temperature rises, and even takes place accidents such as super Wen Huanhuo, serious even lead to the unit to shut down, because generator collector ring cell overall arrangement is compacter, when the operation, the operating personnel hardly carries out effectual measurement to the spring pressure and the current sharing of carbon brush, hardly judges whether pressure and current sharing degree accord with the requirement, hardly discovers the hidden danger in advance, prevents the occurence of failure.

Therefore, it is necessary to provide a comprehensive testing tool for tensile force and current of a carbon brush spring in operation to solve the above technical problems.

Disclosure of Invention

The utility model provides a comprehensive testing tool for tension and current of a carbon brush spring in operation, which solves the problems that the existing carbon brush is almost a constant-pressure spring, the pressure of each carbon brush is not uniform easily caused by the uneven pressure distribution of the spring, the current distribution is uneven, the bearing pressure of the carbon brush is larger, the current is larger, the carbon brush is subjected to large current for a long time, the carbon brush performance is easily deteriorated, the temperature is increased, even accidents such as super Wen Huanhuo and the like occur, the machine unit is seriously stopped even, and because the arrangement of a collecting ring cell of a generator is compact, the spring pressure and the current sharing of the carbon brush are difficult to effectively measure by operators in operation, whether the pressure and the current sharing degree meet the requirements or not is difficult to judge in advance, hidden danger is difficult to discover, and accidents are prevented.

In order to solve the technical problems, the comprehensive testing tool for the tension and the current of the carbon brush spring in operation provided by the utility model comprises a shell, wherein one end of the shell is provided with a first current coil, the outer side of the first current coil is fixedly connected with a current transformer, one end of the current transformer is provided with a second current coil, one side of the current transformer is provided with a self-locking device, the outer side of the current transformer is provided with a control button electrically connected with the self-locking device, and the self-locking device is matched with the second current coil.

Preferably, the outer wall symmetry of casing is equipped with two sets of location pinion rack, every group the quantity of location pinion rack all is provided with two, be connected through positioning bolt between casing and the location pinion rack.

Preferably, a second toothed plate is arranged above the positioning toothed plate, an anti-slip belt is arranged between the positioning toothed plate and the second toothed plate, and the positioning toothed plate is connected with the second toothed plate through a hinge.

Preferably, a threaded cylinder is arranged at one end of the shell, the shell is connected with the threaded cylinder through a bearing, and a pull rod is arranged in the threaded cylinder.

The utility model provides a current integrated test instrument, includes the casing, still includes a carbon brush spring tensile test instrument in operation, a carbon brush spring tensile test instrument in operation is a carbon brush spring tensile test instrument in operation of aforesaid, the mounting groove has been seted up to outer wall one side of casing, the display screen is installed to the inside block of mounting groove.

Preferably, the back of the rotary shell is provided with a battery groove, a pressure plate is rotatably arranged in the battery groove, and clamping grooves are symmetrically formed in the top of the pressure plate.

Preferably, a limit groove is formed above the inner wall of the battery groove, a clamping plate matched with the clamping groove is slidably mounted in the limit groove, and the clamping plate is connected with the inner wall of the battery groove through a reset spring.

Compared with the related art, the embodiment provided by the utility model has the following beneficial effects:

the shell can be directly taken, the shell is insulating, can be directly handheld, and place the anti-skidding area between location pinion rack and second pinion rack, directly handheld casing, and the pulling anti-skidding area can prevent that the product from pulling the in-process slippage, then install the display screen under the effect of standing groove, the user can show the electric current and the pulling force that detect through the display screen, and record the storage, rotate the pressure plate afterwards, be convenient for close the battery jar, be convenient for carry out dismouting to the lithium cell of product inside, convenience of customers charges it.

Drawings

FIG. 1 is a schematic diagram of a combined tensile and current testing tool for a carbon brush spring in operation according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of the back structure of the housing according to the present utility model;

FIG. 3 is a schematic view of a mounting structure of a sleeve positioning toothed plate provided by the utility model;

fig. 4 is a schematic view of a partial cross-sectional structure of a pressure plate provided by the utility model.

Reference numerals in the drawings: 1. a housing; 2. a first current coil; 3. a current transformer; 4. a self-locking device; 5. a control button; 6. a second current coil; 7. positioning a toothed plate; 8. positioning bolts; 9. a second toothed plate; 10. an anti-slip belt; 11. a bearing; 12. a thread cylinder; 13. a pull rod; 14. a placement groove; 15. a display screen; 16. a battery case; 17. a pressure plate; 18. a clamping groove; 19. a limit groove; 20. a clamping plate; 21. and a return spring.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1 to fig. 4 in combination, fig. 1 is a schematic structural diagram of a preferred embodiment of a running carbon brush spring tension and current comprehensive testing tool according to the present utility model; FIG. 2 is a schematic view of the back structure of the housing according to the present utility model; FIG. 3 is a schematic view of a mounting structure of a sleeve positioning toothed plate provided by the utility model; fig. 4 is a schematic view of a partial cross-sectional structure of a pressure plate provided by the utility model. The utility model provides a carbon brush spring pulling force and electric current integrated test instrument in operation, includes casing 1, the one end of casing 1 is equipped with first electric current coil 2, the outside fixedly connected with current transformer 3 of first electric current coil 2, the one end of current transformer 3 is equipped with second electric current coil 6, one side of current transformer 3 is equipped with auto-lock ware 4, the outside of current transformer 3 is equipped with the control button 5 with auto-lock ware 4 electric connection, auto-lock ware 4 and the looks adaptation of second electric current coil 6.

The outer wall symmetry of casing 1 is equipped with two sets of location pinion 7, every group the quantity of location pinion 7 all is provided with two, be connected through positioning bolt 8 between casing 1 and the location pinion 7, can dismantle location pinion 7 under positioning bolt 8's effect, conveniently change after damaging.

The locating toothed plate 7 is provided with a second toothed plate 9 above, an anti-slip belt 10 is arranged between the locating toothed plate 7 and the second toothed plate 9, the locating toothed plate 7 is connected with the second toothed plate 9 through a hinge, the anti-slip belt 10 is placed between the locating toothed plate 7 and the second toothed plate 9, the shell 1 is directly held by hand, and the anti-slip belt 10 is pulled, so that slipping of a product in the pulling process can be prevented.

One end of the shell 1 is provided with a thread cylinder 12, the shell 1 is connected with the thread cylinder 12 through a bearing 11, a pull rod 13 is arranged in the thread cylinder 12, the thread cylinder 12 is rotated under the action of the bearing 11, the thread cylinder 12 is matched with the pull rod 13, the pull rod 13 is convenient to disassemble and assemble, meanwhile, the stress of a product can be more uniform under the action of the pull rod 13, and the detection data of the product is more accurate.

The utility model provides a current comprehensive test instrument, includes casing 1, still includes a carbon brush spring tensile test instrument in the operation, mounting groove 14 has been seted up to outer wall one side of casing 1, display screen 15 is installed to the inside block of mounting groove 14, installs display screen 15 under the effect of mounting groove 14, and the user can show detected current and pulling force through display screen 15 to record storage.

The back of changeing casing 1 has seted up battery jar 16, the inside rotation of battery jar 16 is installed pressure board 17, draw-in groove 18 has been seted up to the top symmetry of pressure board 17, rotates pressure board 17, is convenient for close battery jar 16, is convenient for carry out dismouting to the lithium cell of product inside, and the convenience of customers charges it.

The limiting groove 19 has been seted up to the top of battery jar 16 inner wall, the inside slidable mounting of limiting groove 19 has the cardboard 20 with draw-in groove 18 looks adaptation, cardboard 20 with battery jar 16 inner wall passes through reset spring 21 and is connected, rotates pressure plate 17, and pressure plate 17 drives limiting groove 19, and limiting groove 19 and cardboard 20 contact location, and cardboard 20 slides in the inside of limiting groove 19 under reset spring 21's effect simultaneously, and the convenience of customers is fixed a position pressure plate 17.

The utility model provides a working principle of a carbon brush spring tension and current comprehensive test tool in operation, which comprises the following steps:

firstly, before testing, a user presses a control button 5 to open a self-locking device 4, then straightens a second current coil 6, penetrates into a carbon brush to be tested in the shell 1, closes the self-locking device 4, realizes self-locking, and after self-locking, an internal electric loop is connected, so that the function of the sensor 3 can be realized.

The second current coil 6 is then brought into the current transformer 3 at its end, inside which the current can be detected. At this time, the operator pulls the current transformer 3 to force one end of the first current coil 2, and the spring pressure can be detected inside.

Finally, the shell 1 is taken, the shell 1 is insulated, the shell can be directly held by hand, the anti-slip belt 10 is placed between the positioning toothed plate 7 and the second toothed plate 9, the shell 1 is directly held by hand, the anti-slip belt 10 is pulled, the product can be prevented from slipping in the pulling process, then the display screen 15 is installed under the action of the placement groove 14, a user can display the detected current and the detected pulling force through the display screen 15, the record is stored, the pressure plate 17 is rotated, the battery groove 16 is conveniently closed, the lithium battery inside the product is conveniently disassembled and assembled, and the user can charge the lithium battery conveniently.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides a carbon brush spring tensile test instrument in operation, its characterized in that, including casing (1), the one end of casing (1) is equipped with first current coil (2), the outside fixedly connected with current transformer (3) of first current coil (2), the one end of current transformer (3) is equipped with second current coil (6), one side of current transformer (3) is equipped with auto-lock ware (4), the outside of current transformer (3) is equipped with control button (5) with auto-lock ware (4) electric connection, auto-lock ware (4) and second current coil (6) looks adaptation.

2. The running carbon brush spring tension testing tool according to claim 1, wherein two groups of positioning toothed plates (7) are symmetrically arranged on the outer wall of the shell (1), two groups of positioning toothed plates (7) are arranged, and the shell (1) is connected with the positioning toothed plates (7) through positioning bolts (8).

3. The running carbon brush spring tension testing tool according to claim 2, wherein a second toothed plate (9) is arranged above the positioning toothed plate (7), an anti-slip belt (10) is arranged between the positioning toothed plate (7) and the second toothed plate (9), and the positioning toothed plate (7) is connected with the second toothed plate (9) through a hinge.

4. The running carbon brush spring tension testing tool according to claim 1, wherein a threaded cylinder (12) is arranged at one end of the shell (1), the shell (1) is connected with the threaded cylinder (12) through a bearing (11), and a pull rod (13) is arranged in the threaded cylinder (12).

5. The current comprehensive testing tool comprises a shell (1), and is characterized by further comprising an in-operation carbon brush spring tension testing tool, wherein the in-operation carbon brush spring tension testing tool is as claimed in any one of claims 1-4, a placement groove (14) is formed in one side of the outer wall of the shell (1), and a display screen (15) is installed in the inner clamping of the placement groove (14).

6. The comprehensive current testing tool according to claim 5, wherein a battery groove (16) is formed in the back of the shell (1), a pressure plate (17) is rotatably installed in the battery groove (16), and clamping grooves (18) are symmetrically formed in the top of the pressure plate (17).

7. The comprehensive current testing tool according to claim 6, wherein a limit groove (19) is formed above the inner wall of the battery groove (16), a clamping plate (20) matched with the clamping groove (18) is slidably mounted in the limit groove (19), and the clamping plate (20) is connected with the inner wall of the battery groove (16) through a reset spring (21).