CN219122355U

CN219122355U - Measuring device for a circuit breaker

Info

Publication number: CN219122355U
Application number: CN202223363206.XU
Authority: CN
Inventors: 王方超; 江丹
Original assignee: Siemens Medium Voltage Switching Technologies Wuxi Ltd
Current assignee: Siemens Medium Voltage Switching Technologies Wuxi Ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-06-02
Anticipated expiration: 2032-12-14

Abstract

The utility model proposes a measuring device for a circuit breaker, the circuit breaker being located in a housing, an operating mechanism of the circuit breaker comprising a main shaft extending along a first direction, the measuring device comprising: the body is used for bearing an angle sensor; the fixing assembly is fixed on the body and is used for being fixed to the box body; the rotating assembly is fixed on the body and is used for being connected to the main shaft along a second direction, the angle sensor is connected to the rotating assembly, the rotating assembly can rotate along with the main shaft, the angle sensor can measure the rotating angle of the rotating assembly, and the first direction is perpendicular to the second direction. Through setting up the rotating assembly of the main shaft that can connect the circuit breaker in the second direction for can measure the characteristic of the circuit breaker in the cubical switchboard after the customer scene is cabinet-combined, convenient and fast, the cost is lower and easy to realize.

Description

Measuring device for a circuit breaker

Technical Field

The utility model relates to the field of power equipment, in particular to measuring equipment for a circuit breaker.

Background

Switch cabinets are important electrical equipment in power systems, and circuit breakers are important component parts in switch cabinets, the characteristics of which affect the overall characteristics of the switch cabinets.

In the prior art, before a switch cabinet leaves a factory, the characteristics of a circuit breaker are detected to determine the performance of the circuit breaker. After the switch cabinet group is assembled on the customer site, the switch cabinet group is inspected again to verify the performance of the circuit breaker in many times, but some users can use a plurality of switch cabinets together, and the original detection position can not be detected any more. Therefore, a new detection means is a problem to be solved.

Disclosure of Invention

In view of this, the present utility model proposes a measuring device for a circuit breaker, the circuit breaker being located in a housing, the operating mechanism of the circuit breaker comprising a main shaft extending along a first direction, the measuring device comprising:

a body for carrying an angle sensor;

a fixing assembly fixed to the body, the fixing assembly for fixing to the case;

the rotating assembly is fixed on the body and is used for being connected with the main shaft along a second direction, the angle sensor is connected with the rotating assembly, the rotating assembly can rotate along with the main shaft, the angle sensor can measure the rotating angle of the rotating assembly, and the first direction is perpendicular to the second direction.

Through setting up the rotating assembly of the main shaft that can connect the circuit breaker in the second direction for can measure the characteristic of the circuit breaker in the cubical switchboard after the customer scene is cabinet-combined, convenient and fast, the cost is lower and easy to realize.

According to the measuring device as described above, optionally, the rotating assembly comprises:

a first housing, the first housing being secured to the body;

a bearing assembly, the first housing for supporting the bearing assembly, one end of the bearing assembly for connecting the angle sensor;

one end of the drawing piece is used for being connected with the main shaft, and the drawing piece penetrates through the bearing assembly and can drive the bearing assembly to rotate.

The rotating assembly is simple in structure and convenient to realize.

According to the measuring device as described above, optionally, the drawing member is a metal long handle, and both ends of the drawing member are respectively provided with a positioning pin. The locating pin can prevent the drawer from falling off the bearing assembly.

According to the measuring apparatus described above, optionally, the bearing assembly comprises:

the drawing piece is arranged on the base in a penetrating way and can move in the base;

the first end of the coupler is fixed on the base, and the other end of the coupler is used for being connected with the angle sensor.

The bearing assembly is simple in structure and convenient to realize.

According to the measuring device as described above, optionally, the drawer is capable of rectilinear movement with respect to the base.

According to the measuring apparatus as described above, optionally, the base and the drawer are both made of an aluminum alloy. Therefore, the cost is low, the weight of the measuring equipment is light, and the carrying is convenient.

According to the measuring device as described above, optionally, the fixing assembly comprises:

a clamping subassembly for clamping to the housing;

a pushing subassembly for pushing the clamping subassembly from a first position to a second position, the clamping subassembly being capable of being clamped to the housing in the second position.

The fixing component is simple in structure and convenient to realize.

According to the measuring device as described above, optionally, the clamping subassembly comprises:

a reference plate, the reference plate being secured to the body;

and the sliding plate is connected with the pushing sub-assembly and is a rubber plate.

The sliding plate made of rubber materials can enable the measuring equipment to be better clamped on the edge of the box body, and damage to the box body can be avoided.

According to the measuring device as described above, optionally, the pushing subassembly comprises:

a second housing;

a fixed shaft fixed in the second housing;

a pushing part, the first end of which extends out of the shell and is fixed on the sliding plate;

the first end of the eccentric handle is sleeved on the fixed shaft, the fixed shaft deviates from the circle center of the first end of the eccentric handle, and the first end of the eccentric handle abuts against the second end of the pushing part.

The structure is convenient to assemble and realize, and the cost is lower.

According to the measuring device as described above, optionally, the fixed axis is perpendicular to the first direction and the second direction.

According to the measuring device as described above, optionally the angle sensor is also included.

Drawings

The above and other features and advantages of the present utility model will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings in which:

fig. 1 is a schematic view showing a structure in which a measuring apparatus for a circuit breaker according to an embodiment of the present utility model is fixed to a case.

Fig. 2 is a schematic structural view of the measuring apparatus for a circuit breaker of fig. 1.

Fig. 3 is another structural schematic diagram of the measuring apparatus for a circuit breaker of fig. 1.

Wherein, the reference numerals are as follows:

1-case

2-spindle

21-crank arm

3-body

31-third shell

4-fixation assembly

41-clamping subassembly

411-datum plate

412-sliding plate

421-second shell

423-pushing part

424-eccentric handle

4241-through holes

5-turn assembly

51-first housing

52-bearing assembly

521-base

522-coupling

53-drawer

531-locating pin

Detailed Description

The present utility model will be further described in detail with reference to the following examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. Nouns and pronouns for humans in this patent application are not limited to a particular gender.

The utility model provides a measuring device for a circuit breaker to measure characteristics of the circuit breaker in the case of a customer site. The circuit breaker is located in a housing 1, for example the contacts of the circuit breaker of a gas-insulated switchgear are located in a closed gas box, the operating mechanism of the circuit breaker is located outside the gas box, and the whole circuit breaker is located in the housing 1 of the switchgear. The main shaft 2 of the circuit breaker extends along a first direction D1, and the main shaft 2 is rotatable between a breaking position and a closing position. The structure is the structure of the breaker in the switch cabinet in the prior art.

As shown in fig. 1 to 3, the measuring apparatus for a circuit breaker includes a body 3, a fixing assembly 4, and a rotating assembly 5.

Wherein the body 3 is adapted to carry an angle sensor (not shown in the figures). The angle sensor may be any angle sensor in the prior art. The body 3 may take any shape and material, and fig. 1 shows an example in which the body 3 is a flat plate, and the material may be metal, for example, aluminum alloy, so as to facilitate installation and removal.

The fixing assembly 4 is fixed to the body 3. The fixing assembly 4 is for fixing to the case 1. For this measuring device, it is necessary to fix its whole to ensure the accuracy of the subsequent measurement accuracy. The fixing assembly 4 may be fixed to the edge of the case 1 in a clamping manner.

The rotating assembly 5 is fixed on the body 3, the rotating assembly 5 is used for being connected to the main shaft 2 along a second direction D2, the angle sensor is connected to the rotating assembly 5, the rotating assembly 5 can rotate along with the main shaft 2, the angle sensor can measure the rotating angle of the rotating assembly 5, and the first direction D1 is perpendicular to the second direction D2. The rotating assembly 5 may be specifically connected to the crank arm 21 of the main shaft 2, and rotate along with the rotation of the main shaft 2, and the angle sensor can measure the rotation angle of the rotating assembly 5, and then send the rotation angle to the background to obtain the characteristics of the circuit breaker based on the rotation angle.

The first direction D1 here is a direction in which the spindle 2 extends, and the second direction D2 is perpendicular to the spindle 2 direction. This is because, generally, when a plurality of switch cabinets are combined for use, the side face of the cabinet 1 is shielded by the adjacent switch cabinets, so that the test part originally located on the side face of the cabinet 1 and used for connecting the spindle 2 is also shielded, and the test cannot be performed after the cabinet combination. In the second direction D2, there is a door of the box body 1 that can be opened, so that the rotation angle of the circuit breaker can be measured from the second direction D2, and then the characteristics of the circuit breaker, such as the rotation angular speed and the rotation angle of the circuit breaker, can be obtained according to actual needs, and will not be described herein.

In addition, the angle sensor may be connected to a background device, and the acquired rotation angle may be transmitted to the background device through a wired or wireless manner, so that the background device may obtain the required characteristics of the circuit breaker according to the rotation angle.

According to the embodiment, the rotating assembly 5 of the main shaft 2 capable of connecting the circuit breaker in the second direction D2 is arranged, so that the characteristics of the circuit breaker in the switch cabinet after the customer is in the field and cabinet can be measured, and the method is convenient, quick, low in cost and easy to realize.

As an exemplary illustration, the rotating assembly 5 includes a first housing 51, a bearing assembly 52, and a drawer 53. Wherein a first housing 51 is fixed to the body 3, the first housing 51 being adapted to support a bearing assembly 52. The bearing assembly 52 is rotatable and has one end coupled to an angle sensor, thereby enabling the angle sensor to measure the rotational angle of the bearing assembly 52. The drawing member 53 is disposed through the bearing assembly 52, and the drawing member 53 can drive the bearing assembly 52 to rotate, and one end of the drawing member 53 is used for connecting with the spindle 2. In this way, when the spindle 2 rotates, the first position of the drawing member 53 can be driven to move to a second position, for example, when the spindle 2 rotates to the state that the circuit breaker is closed, the drawing member 53 is at the first position, and when the spindle 2 rotates to the state that the circuit breaker is opened, the drawing member 53 is at the second position. The drawer 53 may be a long metal handle with a locating pin 531 at each end of the drawer 53 to enable the drawer 53 to be removed from the bearing assembly 52. The motion of the drawing member 53 can drive the bearing assembly 52 to rotate, so that the angle sensor can measure the rotation angle of the drawing assembly, and the rotation angle of the main shaft 2 can be obtained after a series of conversion, and the characteristics of the circuit breaker can be obtained based on the rotation angle.

As another exemplary illustration, the bearing assembly 52 includes a base 521 and a coupling 522. The drawer 53 is provided to pass through the base 521 and is movable in the base 521, more specifically, the drawer 53 moves linearly with respect to the base 521. A first end of the coupler 522 is fixed to the base 521, and the other end of the coupler 522 is used to connect with the angle sensor. The coupling 522 is located in a first housing 51, and has a first end that extends out of the first housing 51 and is secured to the base 521, and a second end that extends out of the first housing 51 for connection to an external angle sensor. The coupling 522 may be implemented using a shaft bearing.

Alternatively, the base 521 and the drawer 53 may be made of an aluminum alloy, which not only makes the overall weight of the measuring device light, portable, but also low cost.

Optionally, the securing assembly 4 includes a clamping subassembly 41 and a pushing subassembly. The clamping subassembly 41 is intended to be clamped to the case 1. The clamping subassembly 41 herein may include a datum plate 411 and a sliding plate 412.

The datum plate 411 may be fixed to the body 3 and the slide plate 412 is connected to the pusher assembly such that the measurement device may be clamped to the rim of the case 1 by cooperation of both the datum plate 411 and the slide plate 412, as shown in figure 1. In addition, the sliding plate 412 may be made of an elastic material, for example, a rubber plate, so that not only the clamping can be better achieved, but also damage to the case 1 can be avoided.

The push subassembly may include a second housing 421, a stationary shaft (not shown), a push portion 423 and an eccentric handle 424, which is easy and inexpensive to implement. The second housing 421 may be a case as shown in fig. 1 to 3. The fixed shaft is fixed in the second case 421, and its extending direction D3 may be perpendicular to the first direction D1 and the second direction D2 as shown in fig. 3. The first end of the pushing part 423 protrudes from the housing and is fixed to the sliding, and the pushing part 423 may be made of a metal material, for example, an aluminum alloy, and in order to better perform the pushing, the pushing part 423 is configured to have a planar shape on a side connected to the eccentric handle 424 and the sliding plate 412.

As shown in fig. 2 and 3, the first end of the eccentric handle 424 is sleeved on the fixed shaft, the fixed shaft is deviated from the center of the first end of the eccentric handle 424, the first end of the eccentric handle 424 is abutted against the second end of the pushing part 423, when the sliding plate 412 needs to be pushed to approach the reference plate 411, a worker rotates the eccentric handle 424, and the eccentric handle 424 can be fixed at a corresponding position due to the effect of the fixed shaft, so that the operation is simple and convenient. More specifically, as shown in fig. 3, the first end of the eccentric handle 424 is partially circular, and the through hole 4241 through which the fixed shaft passes is deviated from the center of the circle, so that when the eccentric handle 424 rotates, the top of the first end pushes the sliding plate 412 to approach the reference plate 411 and clamp the eccentric handle on the case 1, and when the eccentric handle 424 rotates in the opposite direction, the pushing force applied to the sliding plate 412 is released, so that the measuring apparatus can be detached from the case 1.

Optionally, the measuring device for a circuit breaker further comprises an angle sensor. As shown in fig. 1, the body 3 further has a third housing 31, and an angle sensor may be disposed between the first housing 51 and the third housing 31, so that the angle sensor can be fixed.

In the customer site, one edge of the case 1 is located between the reference plate 411 and the sliding plate 412, and then the eccentric handle 424 is rotated to push the pushing part 423 so that the sliding plate 412 approaches the reference plate 411, and the reference plate 411 and the sliding plate 412 clamp the edge of the case 1, thereby realizing the fixation of the measuring device. The drawing member 53 can be fixed on the crank arm 21 of the main shaft 2 through a bolt, then the main shaft 2 is rotated to drive the drawing member 53 to move, and the base 521 is driven to rotate due to the movement of the drawing member 53, so that the shaft coupling 522 coaxially rotates, and the angle sensor connected with the shaft coupling 522 can acquire the rotation angle of the shaft coupling 522. The correspondence between the rotation angle of the coupling 522 and the rotation angle of the spindle 2 may be determined according to the mechanical structure of the actual measuring device, which is not described herein.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. Measuring device for a circuit breaker, which circuit breaker is located in a housing (1), the operating mechanism of said circuit breaker comprising a main shaft (2) extending along a first direction (D1), characterized in that said measuring device comprises:

-a body (3), said body (3) being adapted to carry an angle sensor;

-a fixing assembly (4), said fixing assembly (4) being fixed to said body (3), said fixing assembly (4) being intended to be fixed to said tank (1);

the rotating assembly (5) is fixed on the body (3), the rotating assembly (5) is used for being connected to the main shaft (2) along a second direction (D2), the angle sensor is connected to the rotating assembly (5), the rotating assembly (5) can rotate along with the main shaft (2), the angle sensor can measure the rotating angle of the rotating assembly (5), and the first direction (D1) and the second direction (D2) are perpendicular.

2. The measurement device according to claim 1, characterized in that the rotating assembly (5) comprises:

-a first housing (51), said first housing (51) being fixed to said body (3);

-a bearing assembly (52), said first housing (51) for supporting said bearing assembly (52), one end of said bearing assembly (52) for connecting said angle sensor;

one drawing piece (53), the one end of drawing piece (53) is used for connecting main shaft (2), drawing piece (53) wear to locate bearing assembly (52) just drawing piece (53) can drive bearing assembly (52) rotate.

3. The measuring device according to claim 2, characterized in that the drawer (53) is a metal long handle, and that the two ends of the drawer (53) are provided with a positioning pin (531) respectively.

4. The measurement device according to claim 2, wherein the bearing assembly (52) comprises:

-a base (521), said drawer (53) being arranged through said base (521) and being movable in said base (521);

and a coupling (522), wherein a first end of the coupling (522) is fixed on the base (521), and the other end of the coupling (522) is used for connecting the angle sensor.

5. The measuring device according to claim 4, characterized in that the drawer (53) is movable in a straight line with respect to the base (521).

6. The measuring device according to claim 5, characterized in that the base (521) and the drawer (53) are both made of an aluminium alloy.

7. The measurement device according to any one of claims 1-6, characterized in that the stationary assembly (4) comprises:

-a clamping sub-assembly (41), said clamping sub-assembly (41) being adapted to be clamped to said housing (1);

a pushing subassembly for pushing the clamping subassembly (41) from a first position to a second position, the clamping subassembly (41) being capable of being clamped to the housing (1) in the second position.

8. The measurement device according to claim 7, wherein the clamping subassembly (41) comprises:

-a reference plate (411), said reference plate (411) being fixed to said body (3);

and a sliding plate (412), wherein the sliding plate (412) is connected with the pushing subassembly, and the sliding plate (412) is a rubber plate.

9. The measurement device of claim 8, wherein the pushing subassembly comprises:

a second housing (421);

a fixed shaft fixed in the second case (421);

a pushing part (423), a first end of the pushing part (423) protrudes from the housing and is fixed to the sliding plate (412);

and the first end of the eccentric handle (424) is sleeved on the fixed shaft, the fixed shaft is deviated from the circle center of the first end of the eccentric handle (424), and the first end of the eccentric handle (424) is abutted against the second end of the pushing part (423).

10. The measurement device of claim 9, wherein the fixed axis is perpendicular to the first direction and the second direction.

11. The measurement device of any one of claims 1-6, further comprising the angle sensor.