CN201247304Y

CN201247304Y - Experimental clamper for dielectric strength between commutator segments

Info

Publication number: CN201247304Y
Application number: CNU2008201214811U
Authority: CN
Inventors: 杨积锡; 林祥清; 罗洪; 肖雪桂
Original assignee: ZHEJIANG CHANGCHENG COMMUTATOR CO Ltd
Current assignee: ZHEJIANG CHANGCHENG COMMUTATOR CO Ltd
Priority date: 2008-07-21
Filing date: 2008-07-21
Publication date: 2009-05-27
Anticipated expiration: 2018-07-21

Abstract

The utility model discloses a test cramping apparatus of dielectric strength between flakes of a commutator, which comprises a chassis (12) and a pillar (9), wherein the upper end of the pillar (9) is equipped with a handle (13), the inner side of the pillar is equipped with a control switch (7), and the outer side is equipped with an expansion spring (8) which is connected with the handle, and a relay (11) and a bulb (10) are mounted on the chassis (12), a supporting stand (15) is mounted on the chassis and under the handle, and a compression spring (14) is mounted on the supporting stand. The relay (11) is provided with a plurality of binding posts, and the binding posts are electrically connected with a compression spring (14), the bulb (10) and a power supply (LN) in series. The commutator is firstly mounted on the compression spring, which is pressed down through downwards pressing the handle to switch on the control switch, whether the commutator is qualified or not is judged through whether the bulb lights or not, and the test of dielectric strength between flakes of commutator is finished in one time, and test efficiency and working efficiency are dramatically improved, and the test cramping apparatus can totally adapt to the requirements of modernized production.

Description

The dielectric strength between commutator segments test fixture

One, technical field

The utility model relates to the test fixture of dielectric strength between a kind of commutator segment sheet that is used to detect commutator.

Two, background technology

The test fixture of withstand voltage dielectric strength comprises contact, positioning core axle, dielectric test plate (as shown in Figure 1 and Figure 2) between the existing known commutator segment sheet that is used to detect commutator.Its principle of work is: contact connects adjacent two commutator segments in the commutator product, after adding certain voltage at the LN two ends, promptly adds certain voltage at the two ends of adjacent commutator segment.If the commutator segment of this commutator has 24, then in the dielectric test process, need rotating commutator product 24 times, every rotation is once exerted pressure, and needs certain test period, and work efficiency, test efficiency are extremely low.

Three, utility model content

The purpose of this utility model is to overcome above-mentioned deficiency, can apply identical voltage simultaneously with the disposable dielectric strength between commutator segments test fixture of finishing dielectric test between sheet between each commutator segment to commutator and provide a kind of.

The purpose of this utility model realizes by following technical solution: a kind of dielectric strength between commutator segments test fixture, comprise base, pillar, handle is equipped with in the upper end of described pillar, and gauge tap is equipped with in the inboard of pillar, and the coil tension spring that links with handle is equipped with in its outside; Relay and bulb are housed on the described base, on the base, handle below locate to be equipped with bearing, compression spring is housed on the bearing; Described relay has several binding posts, and this binding post is electrically connected with compression spring, bulb, power supply respectively.

After adopting the utility model structure, commutator is contained on the compression spring, press commutator and connect gauge tap by pressing down of handle, judge so that bulb is whether luminous whether commutator is qualified, and the disposable test of finishing dielectric strength between commutator segments, obviously improve test efficiency and work efficiency, can adapt to the needs of modern production fully.

Four, description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Fig. 1 is the structural representation of known dielectric strength between commutator segments test fixture.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the structural representation of the utility model dielectric strength between commutator segments test fixture.

Fig. 4 is the vertical view of Fig. 3.

Fig. 5 is the circuit theory diagrams of the utility model dielectric strength between commutator segments test fixture.

Five, embodiment

With reference to Fig. 1, Fig. 2 as can be known, the test fixture of known dielectric strength between commutator segments comprises contact 3, positioning core axle 1, dielectric test plate 6.Its principle of work is: adjacent two

commutator segments

4,5 that contact 3 connects in the commutator product 2 after the LN two ends add certain voltage, promptly also add certain voltage at the two ends of adjacent commutator segment.How many sheets the commutator segment of this commutator has, and then needs the same number of times of rotating commutator product in dielectric test.

With reference to Fig. 3, Fig. 4 as can be known, the utility model dielectric strength between commutator segments test fixture comprises base 12, pillar 9, and handle 13 is equipped with in the upper end of described pillar 9, and gauge tap 7 is equipped with in the inboard of pillar 9, and the coil tension spring 8 that links with handle is equipped with in its outside; Relay 11 and bulb 10 are housed on the described base 12, on the base 12, handle 13 below locate to be equipped with bearing 15, compression spring 14 is housed on the bearing 15; Described relay 11 has several binding posts, and this binding post is electrically connected with compression spring 14, bulb 10, power supply (LN end) respectively.Its repeat circuit 11 has three binding posts, is respectively KA, KA1 is normally closed, and KA2 often opens, as shown in Figure 5; Commutator 2 is contained on the compression spring 14, and the radical of compression spring 14 is corresponding with the commutator segment sheet number of commutator 2.

As shown in Figure 5, circuit connecting relation of the present utility model is: an end L of described power supply is connected with KA2, KA, the gauge tap S of relay respectively, and the other end N of power supply is connected with the KA1 of bulb L1, relay respectively; Bulb L1 is connected with the KA of relay again, and the other end of the KA2 of relay is connected in again between the KA and bulb L1 of relay; The KA1 of relay is connected with commutator AB end, gauge tap S again successively.

At first commutator 2 is contained on the compression spring 14, presses commutator 2 (being A shown in Figure 5, B two ends) and connect gauge tap 7 by pressing down of handle 13 subsequently.Open power supply L, N two ends simultaneously.Its circuit working principle is: after power supply LN two ends apply certain voltage, do not press down as handle, and the not detected test of commutator, then relay K A is in closure state, and bulb L1 directly links circuit loop and is luminous; Press lower handle 13, gauge tap 7 (being S in the circuit theory diagrams) is connected, and applies certain voltage simultaneously between each commutator segment sheet of commutator.If the commutator product of check is bad, then AB end, relay K A1 energising, former normally closed auxiliary switch KA disconnects, the former auxiliary switch KA2 closure of often opening, bulb L1 is luminous; If check commutator product insulating property are qualified, then AB end, relay K A1 no power, gauge tap S and bulb circuit disconnection, auxiliary switch KA2 often leaves, and lamp ditch L1 is not luminous.So disposable test of finishing dielectric strength between commutator segments has been saved the time greatly.

Claims

1, a kind of dielectric strength between commutator segments test fixture, comprise base (12), pillar (9), it is characterized in that: handle (13) is equipped with in the upper end of described pillar (9), and gauge tap (7) is equipped with in the inboard of pillar (9), and the coil tension spring (8) that links with handle is equipped with in its outside; Relay (11) and bulb (10) are housed on the described base (12), and bearing (15) is equipped with at place, below last at base (12), handle (13), and compression spring (14) is housed on the bearing (15); Described relay (11) has several binding posts, and this binding post is electrically connected with compression spring (14), bulb (10), power supply (LN) successively.

2, dielectric strength between commutator segments test fixture as claimed in claim 1, it is characterized in that: an end (L) of described power supply is connected with KA2, KA, the gauge tap (S) of relay respectively, and the other end of power supply (N) is connected with the KA1 of bulb (L1), relay respectively; Bulb (L1) is connected with the KA of relay again, and the other end of the KA2 of relay is connected in again between the KA and bulb (L1) of relay; The KA1 of relay is connected with commutator (AB), gauge tap (S) again successively.