CN214096561U - Vacuum circuit breaker mechanical characteristic measuring device - Google Patents

Abstract

The utility model discloses a vacuum circuit breaker mechanical properties measuring device, including shell and measuring module, measuring module is fixed in inside the shell, the one end of shell set up one with the main shaft assorted rotatory dead axle of circuit breaker, rotatory dead axle with measuring module rotates and connects, the other end of shell is connected with a fixation nut, fixation nut passes through threaded connection one and has the telescopic screw of end cover, fixation nut's the outside set up one with telescopic screw threaded connection be equipped with tight nut, the side of shell still be provided with one with the data transmission who measuring module electricity is connected connects. The utility model discloses can install in narrow and small space and dismantle, the vacuum circuit breaker's of being convenient for mechanical properties test.

Description

Vacuum circuit breaker mechanical characteristic measuring device

Technical Field

The utility model relates to a vacuum circuit breaker mechanical characteristic measuring device.

Background

The switch cabinet is widely used switch equipment in power grid, building and factory, and has the core of vacuum circuit breaker, which belongs to important electric equipment in power system.

Statistics of the national institute of electrical network and power science on-line monitoring on high-voltage switch accidents shows that 80% of breaker failures are caused by poor mechanical characteristics, so that mechanical characteristic tests are indispensable in type tests, delivery tests and field tests, and the on-line monitoring technology of the mechanical characteristics of the breaker is widely applied to engineering. The mechanical characteristic parameters include: the time of switching on/off, the synchronism of switching on/off, the distance of opening, the overtravel, the speed of just switching on/off, the average speed and the maximum speed, etc.

The vacuum circuit breaker adopts a spring mechanism, the spring mechanism and the vacuum arc-extinguishing chamber are packaged, and the space between the spring mechanism and the packaging shell is very limited, so that the mechanical measuring equipment is inconvenient to mount and dismount. Especially, because the rotation angle of the measured mechanism is small, the opening/closing time is millisecond-level, the existing mechanical characteristic measuring equipment adopts a magnetic base installation mode, the occupied space is large, the fastening links are multiple, the angle and time loss can be caused in the measuring process, the test data are distorted, and the great potential safety hazard can be caused after the equipment is delivered and buried.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vacuum circuit breaker mechanical properties measuring device, whole size is adjustable, can install in narrow and small space and dismantle, the vacuum circuit breaker's of being convenient for mechanical properties test.

In order to achieve the above purpose, the utility model adopts the following scheme:

the utility model provides a vacuum circuit breaker mechanical properties measuring device, includes shell and measuring module, measuring module is fixed in inside the shell, the one end of shell set up one with the main shaft assorted rotatory dead axle of circuit breaker, rotatory dead axle with measuring module rotates and connects, the other end of shell is connected with a fixation nut, fixation nut passes through a threaded connection telescopic screw that has the end cover, fixation nut's the outside set up one with telescopic screw threaded connection's the tight nut that is equipped with, the side of shell still be provided with one with the data transmission who the measuring module electricity is connected connects.

The utility model discloses a measuring device, the rotatory flexible screw rod of accessible, reduce the holistic width of device and make whole measuring device get into in the narrow space between main shaft mechanism and the encapsulation shell in the circuit breaker together, be connected rotatory end shaft and main shaft, it is rotatory that the main shaft can be followed to rotatory end shaft, then with the help of the end cover of the rotatory flexible screw rod of instruments such as spanners, make the screw rod extend, can install whole measuring device location between main shaft and encapsulation shell, can carry out follow-up test after connecting data transmission joint with external test equipment. The utility model discloses measuring device's installation and dismantlement process are very swift convenient, can ensure mounted position's precision, are favorable to improving the accuracy of test result.

The utility model discloses still have following preferred design:

the shell is formed by splicing an upper U-shaped plate, a lower U-shaped plate, a left cover plate and a right cover plate into a detachable shell.

The joint between the upper U-shaped plate and the lower U-shaped plate is a concave-convex connecting tongue-and-groove, the sealing effect is good, the waterproof and dustproof effects are achieved, the upper U-shaped plate and the lower U-shaped plate can be formed by die-casting thin aluminum-zinc plates, and press grooves are machined on the surfaces of the upper U-shaped plate and the lower U-shaped plate, so that the mechanical strength is enhanced.

A first mounting hole for fixedly connecting the data transmission connector is formed in the lower U-shaped plate, and the data transmission connector can be a 4-hole Q9 male connector.

Go up and seted up a second mounting hole on the U template, second mounting hole connects one and is located the anti-skidding handle in the shell outside, one of the effect of anti-skidding handle is convenient for handheld, sends into measuring device narrow and small space and fixed measuring device's in-process can not loosen and take off, and another effect passes through anti-skidding handle processing internal thread can with the encapsulation shell fixed connection of circuit breaker, and magnetic base's connecting rod anchor clamps can also be connected to this anti-skidding handle in addition, when the circuit breaker inner space is enough, can be through traditional magnetic base installation fixed this measuring device.

The end cover of the telescopic screw rod is provided with a connecting hole, and the telescopic screw rod can be fixedly connected to the packaging shell of the circuit breaker and used for long-term online monitoring.

The measuring module is a conductive plastic potentiometer with a customizable structure.

The utility model discloses following beneficial effect has:

(1) the utility model discloses a measuring device, the rotatory flexible screw rod of accessible reduces in the holistic width of device makes whole measuring device get into the narrow space between main shaft mechanism and packaging shell in the circuit breaker together, and the installation and dismantlement process is very swift convenient, can ensure mounted position's precision, and true effective main shaft turned angle and time signal of gathering are favorable to improving the accuracy of test result.

(2) The utility model discloses a measuring device, small, light, the cost is low, spare part is easily changed, is applicable to batch production and carries out extensive industrial application, and the installation space can not match the flexible screw rod and the supporting fixation nut of different length by election simultaneously, and installation and fastening operation are swift convenient.

(3) The utility model discloses can also satisfy the traditional mounting means and the long-term on-line monitoring that adopt magnetic base, the commonality is strong.

Drawings

Fig. 1 is a half sectional view of a mechanical characteristic measuring apparatus of a vacuum circuit breaker according to the present invention;

FIG. 2 is a front view of the measuring device of FIG. 1;

fig. 3 is a perspective view of the mechanical characteristic measuring device of the vacuum circuit breaker of the present invention;

FIG. 4 is a perspective view of upper and lower U-shaped plates that make up the housing;

fig. 5 is a use reference diagram of the mechanical characteristic measuring device of the vacuum circuit breaker of the present invention;

FIG. 6 is an enlarged view at A in FIG. 5;

FIG. 7 is a front view of the telescopic screw of the present invention;

fig. 8 is a left side view of the telescoping screw of fig. 7.

Description of reference numerals: the device comprises a shell, an upper U-shaped plate, a lower U-shaped plate, a right side plate, a left side plate, a rotating end shaft, a fixing nut, a telescopic screw rod, a connecting hole, a tightening nut, a data transmission joint, a antiskid handle, an antiskid line, a measuring module, a main shaft and a packaging shell, wherein the shell comprises 1a part, an upper U-shaped plate, 1b part, a lower U-shaped plate, 1c part, a right side plate, 1d part, the left side plate, 2 part, the fixing nut, 4 part, the telescopic screw rod, 4a part, the connecting hole, 5 part, the tightening nut, 6 part, the data transmission joint, 7 part, the antiskid handle, 7a part, the antiskid line, 8 part, the measuring module, 9 part and 10 part.

Detailed Description

The technical solutions of the present invention are described in detail below with reference to the accompanying drawings and examples, so that those skilled in the art can better understand and implement the technical solutions of the present invention.

The utility model provides a vacuum circuit breaker mechanical properties measuring device as shown in fig. 1 to 8, including shell 1 and measuring module 8, measuring module 8 is fixed in inside the shell 1, and it is the conductive plastic potentiometre of customizable structure, and in this embodiment, this plastic potentiometre can adopt the accurate conductive plastic potentiometre of medium-sized WDD35D-4 of current product, and its function is to convert a mechanical displacement into electrical signal to this signal can be directly proportional with mechanical motion. One end of the shell 1 is provided with a rotating end shaft 2 matched with a main shaft of the circuit breaker, the rotating end shaft 2 is rotatably connected with the measuring module 8, the other end of the shell 1 is connected with a fixing nut 3, the fixing nut 3 is connected with an expansion screw rod 4 with an end cover through threads, the outer side of the fixing nut 3 is provided with a tightening nut 5 connected with the expansion screw rod 4 through threads, and the side face of the shell 1 is further provided with a data transmission joint 6 electrically connected with the measuring module 8.

As a preferred embodiment:

the shell 1 is spliced into a detachable shell by an upper U-shaped plate 1a, a lower U-shaped plate 1b, a left cover plate 1d and a right cover plate 1 c.

As shown in fig. 4, the interface between the upper U-shaped plate 1a and the lower U-shaped plate 1b is a concave-convex connection tongue and groove, which has good sealing effect and is waterproof and dustproof, and the upper and lower U-shaped plates can be formed by die casting of thin aluminum-zinc plates, and are provided with press grooves on the surfaces, etc., so as to enhance the mechanical strength.

A first mounting hole for fixedly connecting a data transmission connector 6 is formed in the lower U-shaped plate 1b, and the data transmission connector 6 can be a 4-hole Q9 male connector.

Go up and seted up a second mounting hole on U template 1a, the anti-skidding handle 7 that is located the shell 1 outside is connected to the second mounting hole, the surface machining of anti-skidding handle 7 has anti-skidding line 7a, one of its effect is convenient for handheld, send into narrow and small space with measuring device, and fixed measuring device's in-process can not loosen and take off, another effect has the internal thread through anti-skidding handle 7 processing, can with the encapsulation shell 10 fixed connection of circuit breaker, magnetic base's connecting rod anchor clamps can also be connected to this anti-skidding handle 7 in addition, when the circuit breaker inner space is enough, can be through the fixed this measuring device of traditional magnetic base installation.

The using process of the measuring device is shown in figures 5 and 6, the measuring device is shortened by rotating the telescopic screw rod 4, the whole width of the device is reduced, the whole measuring device enters a narrow space between a main shaft mechanism and a packaging shell 10 in the circuit breaker together, the rotating end shaft 2 is connected with the main shaft 9, the rotating end shaft 2 can rotate along with the main shaft 9, then an end cover of the telescopic screw rod 4 is rotated by means of a tool such as a wrench, the screw rod is extended, a gap is reserved between the standby nut 5 and the fixing nut 3 in the process of rotating the telescopic screw rod 4, the whole measuring device is positioned and installed between the main shaft 9 and the packaging shell 10, after the whole measuring device is fixed and tightened, the standby nut 5 is tightened to compress the fixing nut, and after external testing equipment is connected with a data transmission connector, subsequent testing can be carried out. When the telescopic screw rod is disassembled, the nut 5 is loosened, and then the telescopic screw rod 4 is loosened.

As shown in fig. 7 and 8, a connection hole 4a is formed in an end cover of the telescopic screw 4, so that the telescopic screw 4 can be fixedly connected to a package housing 10 of the circuit breaker for long-term online monitoring.

The above-mentioned embodiment is only the preferred embodiment of the present invention, but can not be regarded as the restriction to the utility model, any change and improvement based on the inventive concept should fall into the protection scope of the present invention, and the specific protection scope is based on the claims.

Claims (7)

1. The utility model provides a vacuum circuit breaker mechanical properties measuring device, includes shell and measuring module, its characterized in that: the measuring module is fixed in inside the shell, the one end of shell set up one with the main shaft assorted rotatory end shaft of circuit breaker, rotatory end shaft with measuring module rotates and connects, the other end of shell is connected with a fixation nut, fixation nut has the flexible screw rod of end cover through threaded connection one, fixation nut's the outside set up one with flexible screw rod threaded connection's the tight nut that is equipped with, the side of shell still be provided with one with the data transmission who the measuring module electricity is connected connects.

2. The mechanical characteristic measuring device of the vacuum circuit breaker according to claim 1, wherein: the shell is formed by splicing an upper U-shaped plate, a lower U-shaped plate, a left cover plate and a right cover plate into a detachable shell.

3. The mechanical characteristic measuring device of the vacuum circuit breaker according to claim 2, wherein: the interface between the upper U-shaped plate and the lower U-shaped plate is a concave-convex connecting tongue-and-groove.

4. The mechanical characteristic measuring device of the vacuum circuit breaker according to claim 2, wherein: and the lower U-shaped plate is provided with a first mounting hole for fixedly connecting the data transmission joint.

5. The mechanical characteristic measuring device of the vacuum circuit breaker according to claim 2, wherein: a second mounting hole is formed in the upper U-shaped plate and connected with an anti-skidding handle located on the outer side of the shell, and internal threads are processed on the anti-skidding handle and used for being connected with a connecting rod clamp of the magnetic base.

6. The mechanical characteristic measuring apparatus of a vacuum circuit breaker according to any one of claims 1 to 5, wherein: and the end cover of the telescopic screw rod is provided with a connecting hole.

7. The mechanical characteristic measuring apparatus of a vacuum circuit breaker according to any one of claims 1 to 5, wherein: the measuring module is a conductive plastic potentiometer with a customizable structure.

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