CN117303154A - Elevator safety gear linkage test device, system and safety gear test method - Google Patents
Elevator safety gear linkage test device, system and safety gear test method Download PDFInfo
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- CN117303154A CN117303154A CN202311607223.XA CN202311607223A CN117303154A CN 117303154 A CN117303154 A CN 117303154A CN 202311607223 A CN202311607223 A CN 202311607223A CN 117303154 A CN117303154 A CN 117303154A
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- elevator
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- star
- brake
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- 239000000758 substrate Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000011056 performance test Methods 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 42
- 238000010586 diagram Methods 0.000 description 9
- 238000003860 storage Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Elevator Control (AREA)
Abstract
An elevator safety gear linkage test device, system and safety gear testing method, wherein the device comprises: a control device including a switching unit; a connection circuit connecting the switching unit to a control circuit of an elevator brake device other than the elevator safety gear; wherein the switch unit is configured to be closed or opened based on a user operation to disable or enable the braking function of the elevator brake device, an environment for testing the elevator safety gear with the braking function of the elevator brake device disabled can be provided, interference of the elevator brake device on the braking effect of the elevator safety gear is eliminated, and accuracy of performance test of the elevator safety gear is ensured.
Description
Technical Field
The invention relates to an automatic control technology of an elevator, in particular to an elevator safety gear linkage test device, an elevator safety gear linkage test system and an elevator safety gear test method.
Background
Elevators play an important role in life and production as hoisting and transporting equipment for serving people or goods. In order to ensure the safety of passengers or goods and avoid accidents, a number of elevator safety assurance solutions have been proposed, in which elevator safety gear is considered as the last line of defense against falling of the elevator car. Therefore, it is important to ensure that the elevator safety gear can reliably function after the car falls.
Disclosure of Invention
The application provides an elevator safety gear linkage test device, an elevator safety gear linkage test system and a safety gear test method, which can detect the performance of an elevator safety gear.
The application provides an elevator safety tongs linkage test device, a serial communication port includes:
a control device including a switching unit;
a connection circuit connecting the switching unit to a control circuit of an elevator brake device other than the elevator safety gear;
wherein the switching unit is configured to be closed or opened based on a user operation to disable or enable a braking function of the elevator braking device.
In an exemplary embodiment, the elevator braking device includes one or more main machine brakes.
In an exemplary embodiment, the control device includes a first switching unit connected between the negative electrode of the main brake and the negative electrode of the power supply through the connection circuit, and a second switching unit connected between the positive electrode of the main brake and the positive electrode of the power supply through the connection circuit;
when the first switch unit and the second switch unit are closed, the positive electrode and the negative electrode of the host brake are respectively connected with the positive electrode and the negative electrode of the power supply, so that the braking function of the host brake is enabled.
In an exemplary embodiment, the elevator brake device further comprises a main machine star-sealing relay and a motor;
when the main machine star-sealing relay is controlled by the switch unit to disconnect the normally-closed contact, the star-sealing braking function of the motor is disabled; when the main machine star-sealing relay is controlled by the switch unit to close the normally-closed contact, the star-sealing braking function of the motor is enabled.
In an exemplary embodiment, the control device includes a third switching unit connected to one of the contacts of the main star-sealed relay and a neutral line terminal of the control loop through the connection circuit; the other contact of the main engine star-sealing relay is connected with the live wire end of the control loop;
when the third switch unit is closed, two contacts of the main engine star-sealing relay are disconnected to enable the star-sealing braking function of the main engine motor.
In an exemplary embodiment, the control device further includes a housing on which the switching unit is mounted, and a first connection terminal connected to a terminal of the switching unit;
the connecting circuit comprises a second connector and a connecting circuit, wherein the second connector and the connecting circuit are arranged in the elevator control cabinet, one end of the second connector is connected with the first connector in a matched mode, and the other end of the second connector is connected to an access point in the control loop through the connecting circuit so as to connect the switch unit into the control loop;
one of the first connector and the second connector is a multi-pin male plug, and the other is a multi-hole female socket.
In an exemplary embodiment, the control device includes a first switch unit, a second switch unit, and a third switch unit, where the first switch unit and the second switch unit are three-terminal switches, and the third switch unit is a two-terminal switch;
the first connector includes:
a sixth connection end connected with the first connection end of the first switch unit and the negative electrode of the power supply in the control loop respectively, a seventh connection end connected with the second connection end of the first switch unit and the negative electrode of the first host brake in the control loop respectively, and an eighth connection end connected with the third connection end of the first switch unit and the negative electrode of the second host brake in the control loop respectively;
the control circuit comprises a first end of a first switch unit, a second end of a second switch unit, a third connecting end connected with the positive electrode of a power supply in the control circuit, a fourth connecting end connected with the second end of the second switch unit and the positive electrode of a first host brake in the control circuit, and a fifth connecting end connected with the third end of the second switch unit and the positive electrode of the second host brake in the control circuit;
the second connecting end is connected with the first end of the third switch unit and one of the normally closed contacts of the main engine star-sealing relay, and the first connecting end is respectively connected with the second end of the third switch unit and the zero line end of the control loop.
The embodiment of the application also provides an elevator safety gear linkage test system, which comprises the elevator safety gear linkage test device and the elevator safety gear.
The embodiment of the application also provides an elevator safety gear testing method which is applied to the elevator safety gear linkage test system, and comprises the following steps:
before triggering the safety gear, operating a switching unit of the control device to disable a braking function of the elevator brake device other than the safety gear;
triggering the safety tongs to stop the elevator, and detecting the safety tongs according to the running state of the elevator.
In an exemplary embodiment, after triggering the safety gear to make a power ladder, the method further comprises:
the switching unit of the control device is reset to enable the braking function of the elevator brake device other than the safety gear.
In an exemplary embodiment, the method further comprises:
before operating the switching unit of the control device, operating the elevator to a preset height and causing the elevator to carry a preset load capacity, the preset load capacity being greater than the rated load capacity of the elevator;
connecting the test device with a control loop through a connecting circuit of the elevator safety tongs linkage test device;
after the elevator starts to run downwards from the preset height, the switch unit of the control device is operated.
Compared with the related art, the technical scheme recorded in the embodiment of the application can provide the environment for testing the elevator safety tongs under the condition of disabling the braking function of the elevator braking equipment by disabling or enabling the braking function of the elevator braking equipment through the set switch unit, so that the interference of the elevator braking equipment on the braking effect of the elevator safety tongs is eliminated, and the accuracy of the performance test of the elevator safety tongs is ensured.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. Other advantages of the present application may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The accompanying drawings are included to provide an understanding of the technical aspects of the present application, and are incorporated in and constitute a part of this specification, illustrate the technical aspects of the present application and together with the examples of the present application, and not constitute a limitation of the technical aspects of the present application.
Fig. 1 is a schematic structural diagram of an elevator safety gear linkage test device according to an embodiment of the present application;
fig. 2 is a schematic connection diagram of a connection end of a switch unit and an access point of a control loop according to an embodiment of the present application;
fig. 3 is a schematic connection diagram of a connection end of another switch unit and an access point of a control loop according to an embodiment of the present application;
fig. 4 is a schematic diagram of connection between a host running contactor and a host star-sealing relay and a motor according to an embodiment of the present application;
fig. 5 is a schematic connection diagram of a connection end of a third switch unit and an access point of a control loop according to an embodiment of the present application;
fig. 6 is a schematic diagram of a control device according to an embodiment of the present application;
fig. 7 is a flowchart of a testing method for elevator safety tongs according to an embodiment of the present application.
Detailed Description
The present application describes a number of embodiments, but the description is illustrative and not limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or in place of any other feature or element of any other embodiment unless specifically limited.
The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements of the present disclosure may also be combined with any conventional features or elements to form a unique inventive arrangement as defined in the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive arrangements to form another unique inventive arrangement as defined in the claims. Thus, it should be understood that any of the features shown and/or discussed in this application may be implemented alone or in any suitable combination. Accordingly, the embodiments are not to be restricted except in light of the attached claims and their equivalents. Further, various modifications and changes may be made within the scope of the appended claims.
Furthermore, in describing representative embodiments, the specification may have presented the method and/or process as a particular sequence of steps. However, to the extent that the method or process does not rely on the particular order of steps set forth herein, the method or process should not be limited to the particular sequence of steps described. Other sequences of steps are possible as will be appreciated by those of ordinary skill in the art. Accordingly, the particular order of the steps set forth in the specification should not be construed as limitations on the claims. Furthermore, the claims directed to the method and/or process should not be limited to the performance of their steps in the order written, and one skilled in the art can readily appreciate that the sequences may be varied and still remain within the spirit and scope of the embodiments of the present application.
The embodiment of the application provides an elevator safety gear linkage test device, as shown in fig. 1, the device may include:
a control device 101 including a switching unit 1010;
the switching unit 1010 is configured to be closed or opened based on a user operation; the type of the switching unit may be a mechanical switch or an electronic switch, wherein the mechanical switch may be a push button switch, a knife switch;
by closing or opening the switching unit 1010 to disable or enable the braking function of the elevator braking device;
a connection circuit 102 arranged to connect the connection terminals of the switching units 1010 to access points in an elevator control loop, respectively; the elevator control circuit refers to the control circuit of the elevator brake device other than the elevator safety gear;
the elevator brake device is an important protection device for an elevator, which elevator brake device needs to fulfill the requirement of ensuring that the elevator is stationary in situ when the elevator is stationary.
According to the elevator safety gear linkage test device, the brake function of the elevator brake equipment is enabled or disabled through the set switch unit, the environment of the elevator safety gear can be tested under the condition that the brake function of the elevator brake equipment is disabled, the interference of the elevator brake equipment on the brake effect of the elevator safety gear is eliminated, and the accuracy of the performance test of the elevator safety gear is ensured.
In an exemplary embodiment, the elevator braking device includes one or more main machine brakes. Alternatively, the elevator brake device comprises 2 main machine brakes, and the 2 main machine brakes can be operated simultaneously, or only one main machine brake can be operated at the same time.
In an exemplary embodiment, the control device 101 may include 2 switching units, namely, a first switching unit and a second switching unit;
the connection end of the first switch unit is connected between the negative electrode of the host brake in the control loop and the negative electrode of the power supply of the control loop through the connection circuit 102; the connection end of the second switch unit is connected between the positive electrode of the host brake and the positive electrode of the power supply of the control loop through the connection circuit 102;
according to the connection relation, under the condition that the first switch unit and the second switch unit are closed, the positive electrode of the host brake and the positive electrode of the control loop are connected, and the negative electrode of the host brake and the negative electrode of the control loop are connected to enable the braking function of the host brake.
Fig. 2 presents a schematic view of the connection terminals of the first and second switching units to the access point of the control loop in case the elevator brake device comprises a main machine brake. In the figures, SY-J07 and SY-J06 are used to represent two connection terminals of the first switching unit; SY-J03 and SY-J04 are used to represent the two connection terminals of the second switching unit; when the first switch unit is closed, two connecting ends SY-J07 and SY-J06 are connected, and the negative electrode of the control loop is communicated with the negative electrode of the host motor; when the second switch unit is closed, the two connection ends SY-J03 and SY-J04 are connected, the positive electrode of the control loop and the positive electrode of the host motor are connected, and the braking function of the host brake is in a disabled state.
Fig. 3 presents a schematic view of the connection terminals of the first and second switching units to the access point of the control loop in case the elevator brake device comprises two main machine brakes. The first switch unit is provided with three connecting ends, namely SY-J06, SY-J07 and SY-J08; the second switch unit is provided with three connecting ends, namely SY-J03, SY-J04 and SY-J05; when the first switch unit is closed, the SY-J06 and the SY-J07 are connected, the SY-J06 and the SY-J08 are connected, and the cathodes of the control loops are respectively communicated with the cathodes of the two host electric machines; when the second switch unit is closed, SY-J03 and SY-J04 are connected, SY-J03 and SY-J05 are connected, the positive poles of the control loop are respectively connected with the positive poles of the two host electric machines, and the braking functions of the two host electric machines are in a disabled state.
Under the condition that the elevator normally works, the main machine brake is powered when the elevator operates, the braking function of the main machine brake is in a disabled state, and when the elevator stops, the main machine brake is powered off, and the braking function of the main machine brake is in a enabled state. According to the elevator safety tongs training linkage test device, the braking function of the main machine brake is still kept in the disabling state when the elevator stops through the control switch unit, so that the braking of the elevator is realized only by the elevator safety tongs, and the braking effect of the elevator safety tongs can be effectively tested.
In an exemplary embodiment, the elevator brake apparatus may further include a main machine star-sealing relay and a motor in addition to the main machine brake;
when the normally closed contact of the main machine star-sealing relay is disconnected under the control of the switch unit, the star-sealing braking function of the motor is disabled, and after the star-sealing braking function of the motor is disabled, the elevator car is not braked by the motor; when the normally closed contact of the main machine star-sealing relay is closed under the control of the switch unit, the star-sealing braking function of the motor is enabled, and the elevator car is braked by the motor under the condition that the star-sealing braking function of the motor is enabled. During the descent of the elevator, normally, the star-sealing braking function of the motor needs to be maintained in an enabled state to avoid the elevator from descending too fast. According to the embodiment of the application, the star sealing braking function of the motor can be enabled through the control of the switch unit in the descending process of the elevator, and the aim of testing the braking function of the safety clamp is achieved.
Fig. 4 shows a schematic diagram of a connection between a host operating contactor and a host star-sealing relay and a motor. In the figure, a main machine running contactor YC is switched on, a normally closed contact of a main machine star-sealing relay FX is switched off, and a star-sealing braking function of a motor (shown as a motor in the figure) is enabled; the running contactor YC of the host is connected, and the normally closed contact of the star-sealing relay FX of the host is closed, so that the star-sealing braking function of the motor is enabled.
Based on the above-mentioned relation between the on-off state of the main machine star-sealing relay and the enabling or disabling of the star-sealing brake function of the motor, in an exemplary embodiment, the control device may further include a third switch unit in addition to the first switch unit and the second switch unit, where a connection end of the third switch unit is connected to one of the normally-closed contacts of the main machine star-sealing relay and a zero line end of the control loop through the connection circuit; the other normally closed contact of the main engine star-sealing relay is connected with the fire wire end of the control loop;
when the third switch is closed, two normally closed contacts of the main engine star sealing relay are disconnected to enable the star sealing braking function of the motor.
Fig. 5 shows a schematic diagram of the connection terminal of the third switching unit to the access point of the control loop. The third switching unit has two contact terminals SY-J01 and SY-J02, respectively. The SY-J01 is connected with a 13 th access point of the control loop, and the 13 th access point is connected with a zero line end of the control loop; the SY-J02 is connected with one normally closed contact of the main star-sealing relay FX, the other normally closed contact of the main star-sealing relay FX is connected with a 15 th access point of the control loop, and the 15 th access point is connected with a fire wire end of the control loop.
With reference to fig. 4 and 5, when the third switch unit is closed, the control loops at two ends of the main star-sealing relay FX are shorted, the coil of the star-sealing relay is kept to be electrified, the normally closed contact of the main star-sealing relay FX is opened, and the star-sealing function of the motor does not participate in braking. Under the condition that the elevator normally works, when the elevator needs to be braked and kept, the third switch unit is disconnected, the coil of the main star-sealing relay FX is powered off, and the normally closed contact of the main star-sealing relay keeps a closed state, so that the star-sealing function of the motor is enabled, and the car is decelerated until stopping through the star-sealing function of the motor.
According to the elevator safety tongs linkage test device, the control loops at two ends of the main engine star-sealing relay FX can be short-circuited when the elevator car descends through controlling the third switch unit, the forced coil is kept to be electrified, the normally closed contact of the main engine star-sealing relay FX is disconnected, the motor star-sealing function does not participate in braking, the braking function of the motor is enabled, the elevator safety tongs are tested under the condition that the elevator car descends without external force braking, and the braking effect of the elevator safety tongs can be tested more effectively.
In an exemplary embodiment, the control device 101 may further include a housing on which the at least one switching unit is mounted, and a first connection head; the first connector is connected with a wiring terminal of the switch unit; the connection circuit 102 comprises a second connector connected with the elevator control cabinet and a connection circuit for connecting the second connector with the control circuit; one end of the second connector is connected with the first connector in a matched mode, and the other end of the second connector is connected to an access point in the control loop through the connecting pipeline.
The first connector is a multi-pin male plug, and the second connector is a multi-hole female socket; or, the first connector is a porous female socket, and the second connector is a multi-pin male plug.
Fig. 6 shows a schematic diagram of a control device, which includes a housing 1012, a first connector 1011 connected to the housing, and three switch units, namely a first switch unit 10100, a second switch unit 10101 and a third switch unit 10102, are mounted on the housing 1012.
In an exemplary embodiment, the first switch unit 10100 is a switch having three connection terminals, the second switch unit 10101 is a switch having three connection terminals, and the third switch unit 10102 is a switch having two connection terminals (also referred to as a dual connection terminal).
The first connector 1011 is a 9-pin plug (also referred to as a 9-pin plug, only 8 pins are used in the present embodiment, and the 9 th pin is idle), and includes:
a sixth needle connected to the first connection terminal of the first switch unit 10100 and the negative power supply electrode (101-) in the control circuit, a seventh needle connected to the second connection terminal of the first switch unit 10100 and the negative first main brake electrode ZQ2 in the control circuit, and an eighth needle connected to the third connection terminal of the first switch unit 10100 and the negative second main brake electrode ZQ4 in the control circuit;
a third pin connected to a first end of the second switch unit 10101, a power supply positive electrode (102+) in the control loop, a fourth pin connected to a second end of the second switch unit 10101, a first main brake positive electrode ZQ1 in the control loop, and a fifth pin connected to a third end of the second switch unit 10101, a second main brake positive electrode ZQ3 in the control loop, respectively;
a second pin connected with the first end of the third switch unit and one end Y4 (normally closed contact end) of the main engine star-sealing relay respectively, and a first pin connected with the second end of the third switch and a zero line end 13 of the control loop respectively.
The embodiment of the application also provides a safety gear linkage test system, which comprises the elevator safety gear linkage test device and the elevator safety gear.
The elevator safety gear is a safety device of an elevator, which is usually a safety device for emergency stopping and clamping of the car on the guide rail under the control of the speed limiter when the elevator speed exceeds a limit (or rated) speed set by the speed limiter of the elevator, or in case of breakage and slackening of the suspension ropes.
The safety gear linkage test system tests the braking effect of the safety gear through the elevator safety gear linkage test device, and the safety gear linkage test system has the technical effects of the elevator safety gear linkage test device in any embodiment.
The embodiment of the application also provides an elevator safety gear testing method, which can be applied to the elevator safety gear linkage test system according to the previous embodiment, as shown in fig. 7, and comprises the following steps:
step S801, before triggering the safety tongs, operating a switch unit of an elevator safety tongs linkage test device in the elevator safety tongs linkage test system to disable a braking function of an elevator braking device other than the safety tongs;
step S802 triggers the safety gear to stop the elevator, and detects the safety gear according to the running state of the elevator.
According to the elevator safety tongs testing method, before the safety tongs are triggered, the elevator safety tongs linkage testing device in the elevator safety tongs linkage testing system enables the braking function of the elevator braking equipment except the safety tongs, so that the braking of the elevator is completed only by means of the safety tongs, and the braking effect of the safety tongs can be accurately tested; the elevator safety tongs testing method is simple and convenient to operate.
In an exemplary embodiment, the method further comprises:
after triggering the safety gear to brake the elevator, the switching unit of the control device is reset to enable the braking function of the elevator brake device other than the safety gear.
In an exemplary embodiment, the method further comprises:
before operating the switching unit of the control device, operating the elevator to a preset height and causing the elevator to carry a preset load capacity, the preset load capacity being greater than the rated load capacity of the elevator; connecting the test device with a control loop through a connecting circuit of the elevator safety tongs linkage test device; after the elevator starts to run downwards from the preset height, the switch unit of the control device is operated.
The elevator safety gear testing method described in the above embodiment is exemplified below with a specific application example.
The elevator car is moved to the top layer, and 125% times of rated load capacity which is uniformly distributed is loaded in the elevator car; inserting a multi-pin plug of the elevator safety tongs linkage test device into a multi-hole socket arranged in an elevator control cabinet; sending a command for running to the first floor to the lift car through the lift control cabinet; after the elevator is started, operating a switch unit of the control device to enable a braking function of the elevator braking equipment except the safety tongs; after the elevator reaches the set rated speed, triggering a mechanical manual trigger mechanism on the speed limiter, and lifting the safety tongs by the speed limiter to stop the elevator; resetting the switching unit of the control device to enable the braking function of the elevator braking device other than the safety gear, the test is completed.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, functional modules/units in the apparatus, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed cooperatively by several physical components. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
Claims (11)
1. An elevator safety gear linkage test device, characterized by comprising:
a control device including a switching unit;
a connection circuit connecting the switching unit to a control circuit of an elevator brake device other than the elevator safety gear;
wherein the switching unit is configured to be closed or opened based on a user operation to disable or enable a braking function of the elevator braking device.
2. The apparatus of claim 1, wherein the device comprises a plurality of sensors,
the elevator brake device comprises one or more main machine brakes.
3. The apparatus of claim 2, wherein the device comprises a plurality of sensors,
the control device comprises a first switch unit and a second switch unit, wherein the first switch unit is connected between the negative electrode of the host brake and the negative electrode of the power supply through the connecting circuit, and the second switch unit is connected between the positive electrode of the host brake and the positive electrode of the power supply through the connecting circuit;
when the first switch unit and the second switch unit are closed, the positive electrode and the negative electrode of the host brake are respectively connected with the positive electrode and the negative electrode of the power supply, so that the braking function of the host brake is enabled.
4. The apparatus of claim 3, wherein the device comprises a plurality of sensors,
the elevator braking equipment also comprises a main machine star-sealing relay and a motor;
when the main machine star-sealing relay is controlled by the switch unit to disconnect the normally-closed contact, the star-sealing braking function of the motor is disabled; when the main machine star-sealing relay is controlled by the switch unit to close the normally-closed contact, the star-sealing braking function of the motor is enabled.
5. The apparatus of claim 4, wherein the device comprises a plurality of sensors,
the control device also comprises a third switch unit, wherein the third switch unit is connected to one normally closed contact of the main engine star-sealing relay and the zero line end of the control loop through the connecting circuit; the other normally closed contact of the main engine star-sealing relay is connected with the fire wire end of the control loop;
when the third switch unit is closed, two normally closed contacts of the main engine star-sealing relay are disconnected to enable the star-sealing braking function of the motor.
6. The apparatus of claim 5, wherein the device comprises a plurality of sensors,
the control device further comprises a shell and a first connecting head, the switch unit is arranged on the shell, and the first connecting head is connected with a wiring terminal of the switch unit;
the connecting circuit comprises a second connector and a connecting circuit, wherein the second connector and the connecting circuit are arranged in the elevator control cabinet, one end of the second connector is connected with the first connector in a matched mode, and the other end of the second connector is connected to an access point in the control loop through the connecting circuit so as to connect the switch unit into the control loop;
one of the first connector and the second connector is a multi-pin male plug, and the other is a multi-hole female socket.
7. The apparatus of claim 6, wherein the device comprises a plurality of sensors,
the control device comprises a first switch unit, a second switch unit and a third switch unit, wherein the first switch unit and the second switch unit are three-terminal switches, and the third switch unit is a two-terminal switch;
the first connector includes:
a sixth connection end connected with the first connection end of the first switch unit and the negative electrode of the power supply in the control loop respectively, a seventh connection end connected with the second connection end of the first switch unit and the negative electrode of the first host brake in the control loop respectively, and an eighth connection end connected with the third connection end of the first switch unit and the negative electrode of the second host brake in the control loop respectively;
the control circuit comprises a first end of a first switch unit, a second end of a second switch unit, a third connecting end connected with the positive electrode of a power supply in the control circuit, a fourth connecting end connected with the second end of the second switch unit and the positive electrode of a first host brake in the control circuit, and a fifth connecting end connected with the third end of the second switch unit and the positive electrode of the second host brake in the control circuit;
the second connecting end is connected with the first end of the third switch unit and one of the normally closed contacts of the main engine star-sealing relay, and the first connecting end is respectively connected with the second end of the third switch unit and the zero line end of the control loop.
8. An elevator safety gear linkage test system, comprising the elevator safety gear linkage test device and the elevator safety gear according to any one of claims 1 to 7.
9. An elevator safety gear testing method applied to the elevator safety gear linkage test system according to claim 8, comprising:
before triggering the safety gear, operating a switching unit of the control device to disable a braking function of the elevator brake device other than the safety gear;
triggering the safety tongs to stop the elevator, and detecting the safety tongs according to the running state of the elevator.
10. The method of claim 9, wherein the step of determining the position of the substrate comprises,
after triggering the safety tongs to make a power outage ladder, the method further comprises:
the switching unit of the control device is reset to enable the braking function of the elevator brake device other than the safety gear.
11. The method according to claim 9, wherein the method further comprises:
before operating the switching unit of the control device, operating the elevator to a preset height and causing the elevator to carry a preset load capacity, the preset load capacity being greater than the rated load capacity of the elevator;
connecting the test device with a control loop through a connecting circuit of the elevator safety tongs linkage test device;
after the elevator starts to run downwards from the preset height, the switch unit of the control device is operated.
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