CN205312812U

CN205312812U - Elevator tows motor and lacks double -phase initiative detection device

Info

Publication number: CN205312812U
Application number: CN201620074422.8U
Authority: CN
Inventors: 张新隆
Original assignee: Odie Promise Elevator Co Ltd Is Newly Spun In Wuxi
Current assignee: Odie Promise Elevator Co Ltd Is Newly Spun In Wuxi
Priority date: 2016-01-26
Filing date: 2016-01-26
Publication date: 2016-06-15
Anticipated expiration: 2026-01-26

Abstract

The utility model provides an elevator tows motor and lacks double -phase initiative detection device, its characterized in that: including elevator operation converter P, elevator operation contactor S and current detection ware A, the elevator operation contactor has three normally open contact, be a normally open contact S1 respectively, the 2nd normally open contact S2 and the 3rd normally open contact S3, a normally open contact S1, the U that three phase machine M is connected respectively to the 2nd normally open contact S2 and the 3rd normally open contact S3 three's one end holds mutually, V holds mutually and holds mutually with W, three phase current's A looks are connected respectively to three's the other end, B congruence C looks, current detection ware A and three phase machine M establish ties, its output connected operating converter P. The electric current that flows through the three phase machine through the disconnected in -process of control elevator operation contactor S break -make and current detection ware A detects can be accomplished the motor and lack double -phase initiative and detect, and it is very simple to detect the structure, can improve elevator operation's reliability after the use, reduces the elevator and closes people's probability and reduction mechanical protection device's action time, drops to the harm of occurence of failure minimum.

Description

Elevator hoisting motor lacks biphase active detecting device

Technical field

This utility model belongs to elevator technology field, is specifically related to a kind of elevator hoisting motor and lacks biphase active detecting device.

Background technology

Converter under control of the control system, drives traction machine forward or reverse, and motor lacks a phase time, and converter detects that overcurrent reports an error, motor lacks two phase times, converter can not detect overcurrent, owing to converter can not detect electric current, once controller receives instruction, meet entry condition, perform a series of action immediately, finally make operation catalyst action, band-type brake catalyst action, under portative effect in place, elevator will be in the state of car of freely slipping, although by comparison coder, existing technology also can detect that target velocity that speed and elevator run is inconsistent and judge, but elevator has been started up, final result is that elevator is in not gate district and out of service, this protective measure also allows in existing elevator manufacturer's standard, but it is the passive measure after a kind of breaking down, still result in two kinds of accidents: one is that elevator is in not gate district and out of service, elevator is forbidden opening the door, cause people from pass accident, two be elevator freely slip vehicle speed too high time, cause machinery (such as limiter of speed, safety tongs, rope brake etc.) action.

Summary of the invention

For solving above-mentioned technical problem; this utility model provides a kind of elevator hoisting motor and lacks biphase active detecting device; active detecting is pinpointed the problems; elevator reliability of operation can be improved after using; reduce elevator close the probability of people and reduce the action frequency of Machine guarding, the harm that accident occurs is down to minimum.

For reaching above-mentioned purpose, the technical solution of the utility model is as follows: a kind of elevator hoisting motor lacks biphase active detecting device, it is characterized in that: include elevator and run converter P, elevator runs catalyst S and amperometric A, described elevator runs catalyst and has three normally open contacts, respectively the first normally open contact S1, second normally open contact S2 and the three normally open contact S3, first normally open contact S1, one end of second normally open contact S2 and the three normally open contact S3 three connects the U phase of three phase electric machine M respectively and holds, V phase is held and is held with W phase, the other end of three connects the A phase of three phase mains respectively, B phase and C phase, described amperometric A connects with three phase electric machine M, its outfan connects described operation converter P.

In one preferred embodiment of this utility model, farther including described three phase electric machine M is synchronous motor.

In one preferred embodiment of this utility model, farther including described three phase electric machine M is asynchronous machine.

The beneficial effects of the utility model are: elevator hoisting motor of the present utility model lacks biphase active detecting device; run the electric current flowing through three phase electric machine in the break-make of catalyst and amperometric make and break process and carry out detection only by controlling elevator and can complete motor and lack biphase active detecting; detection structure is extremely simple; elevator reliability of operation can be improved after using; reduce elevator close the probability of people and reduce the action frequency of Machine guarding, the harm that accident occurs is down to minimum.

Accompanying drawing explanation

In order to be illustrated more clearly that the technical scheme in this utility model embodiment technology, the accompanying drawing used required in the description of embodiment technology will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the circuit structure diagram of this utility model preferred embodiment.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments. Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.

Embodiment one

As shown in Figure 1, disclosed in the present embodiment, a kind of elevator hoisting motor lacks biphase active detecting device, converter P is run including elevator, elevator runs catalyst S and amperometric A, described elevator runs catalyst and has three normally open contacts, respectively the first normally open contact S1, second normally open contact S2 and the three normally open contact S3, first normally open contact S1, one end of second normally open contact S2 and the three normally open contact S3 three connects the U phase of three phase electric machine M respectively and holds, V phase is held and is held with W phase, the other end of three connects the A phase of three phase mains respectively, B phase and C phase, described amperometric A connects with three phase electric machine M, its outfan connects described operation converter P.

Based on said structure, the principle of its active detecting is as follows: when this utility model is asynchronous three phase electric machine as the three phase electric machine M of embodiment one, after elevator runs catalyst S Guan Bi, detected the actual current I of motor by amperometric A, compare the no-load current I of actual current I and asynchronous machine tuning₀If I=0 or I is far smaller than I₀, illustrate that motor no current passes through, it can be determined that now three phase electric machine M lacks biphase (or more than), and now, by converter report fault, it is to avoid band-type brake is opened, elevator is now in a district, door-opened elevator, it is to avoid close people's accident.

Embodiment two,

The present embodiment and embodiment one are distinctive in that three phase electric machine M is synchronous motor, the principle of its active detecting is as follows: after elevator runs catalyst S Guan Bi, the detection voltage of the duration 0.6S of 10% is exported by converter P, the three-phase current of motor is detected by amperometric A, by compare three-phase current whether balance judge whether lack biphase: if three-phase balance, elevator normally starts; Whereas if three-phase current unbalance, then reporting fault at once, it is to avoid band-type brake is opened, elevator is now in a district, door-opened elevator, it is to avoid close people's accident.

Therefore; elevator hoisting motor of the present utility model lacks biphase active detecting device; run the electric current flowing through three phase electric machine in the disconnected process of catalyst S break-make and amperometric A and carry out detection only by controlling elevator and can complete motor and lack biphase active detecting; detection structure is extremely simple; elevator reliability of operation can be improved after using; reduce elevator close the probability of people and reduce the action frequency of Machine guarding, the harm that accident occurs is down to minimum.

Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this utility model. The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein when without departing from spirit or scope of the present utility model, can realize in other embodiments. Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.

Claims

1. an elevator hoisting motor lacks biphase active detecting device, it is characterized in that: include elevator and run converter (P), elevator runs catalyst (S) and amperometric (A), described elevator runs catalyst and has three normally open contacts, respectively the first normally open contact (S1), second normally open contact (S2) and the 3rd normally open contact (S3), first normally open contact (S1), the U phase that second normally open contact (S2) connects three phase electric machine (M) respectively with one end of the 3rd normally open contact (S3) three is held, V phase is held and is held with W phase, the other end of three connects the A phase of three phase mains respectively, B phase and C phase, described amperometric (A) is connected with three phase electric machine (M), its outfan connects described operation converter (P).

2. elevator hoisting motor according to claim 1 lacks biphase active detecting device, it is characterised in that: described three phase electric machine (M) is synchronous motor.

3. lack biphase active detecting device according to the elevator hoisting motor described in claim 1, it is characterised in that: described three phase electric machine (M) is asynchronous machine.