CN209635692U - A kind of vertical single rope winding hoist rope-loosing protection device - Google Patents
A kind of vertical single rope winding hoist rope-loosing protection device Download PDFInfo
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- CN209635692U CN209635692U CN201920147372.5U CN201920147372U CN209635692U CN 209635692 U CN209635692 U CN 209635692U CN 201920147372 U CN201920147372 U CN 201920147372U CN 209635692 U CN209635692 U CN 209635692U
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- steel wire
- rope
- protection device
- vertical single
- delay relay
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Abstract
The utility model discloses a kind of vertical single rope winding hoist rope-loosing protection devices; it provides to provide a kind of vertical single rope winding hoist rope-loosing protection device; it is set to issue sound-light alarm when steel wire rope looseness; until cutting main power circuit; accidental amputation power supply is prevented, the safe operation of lifting means is protected.The utility model adopts the following technical solution.A kind of vertical single rope winding hoist rope-loosing protection device; it include: the steel wire, sound-light reminding device, time-delay relay for detecting haulage cable; the steel wire of strip is located at immediately below haulage cable; it is mounted between derrick, winding houses by the insulator at both ends; the signal wire of steel wire connection is concatenated with acoustic-optic alarm; then one end of power supply is accessed, the other end of power supply is connect with elevator drum；Time-delay relay is in parallel with acoustic-optic alarm, and time-delay relay normally-closed contact accesses elevator signal block circuit.
Description
Technical field
The present invention relates to a kind of rope loosening protection device for hoister.
Background technique
Rope creep protection is one of important protective device of mine hoist, and " safety regulations in coal mine " clearly proposes wound form and mention
The machine of liter must install rope-loosing protection device.Cylindrical drum hoist due to using in vertical works as hoisting container in the process of running
When there is phenomena such as card tank, driving driver be cannot be directly viewed, and lifting device is still in operating status, boom hoist cable occurs
No longer play castering action.When wirerope pine to a certain extent, and the hoisting container of card tank drops suddenly, does freely falling body fortune
It is dynamic, huge impact is generated to boom hoist cable, leads to disconnected rope accident of cage crashing, is caused casualties and equipment damage.
Traditional rope-loosing protection device, is exactly installation travel switch below reel or at rope outlet, and the trip switch is
Normally-closed contact seals in safety return circuit, the steel wire rope sag when steel wire rope looseness, and travel switch is disconnected after pressing, and mine hoist safety is returned
Road power-off parking, realizes rope creep protection.
The shortcomings that prior art:
1 at the scene in lifting process, since headgear pulley to garage roller is apart from far, when relaxation occurs for wirerope, by
Arc pendency is generated in the self weight of wirerope, installation travel switch below reel or at rope outlet can not be touched, do not have protection
Effect；
(2) it since travel switch is chronically at wet environment, is easy to make the aging of travel switch contact, causes rope creep protection not
Sensitive or failure, forms major safety risks.
Summary of the invention
In order to provide a kind of vertical single rope winding hoist rope-loosing protection device, make its sending sound when steel wire rope looseness
Light alarm, until cutting main power circuit, prevents accidental amputation power supply, protect the safe operation of lifting means.
The present invention adopts the following technical scheme that.
A kind of vertical single rope winding hoist rope-loosing protection device, comprising: for detect haulage cable steel wire,
Acoustic-optic alarm, time-delay relay, the steel wire of strip are located at immediately below haulage cable, are pacified by the insulator at both ends
Between derrick, winding houses, the signal wire of steel wire connection is concatenated with acoustic-optic alarm, then accesses the one of power supply
End, the other end of power supply are connect with elevator drum；Time-delay relay is in parallel with acoustic-optic alarm, the normally closed touching of time-delay relay
Point access elevator signal block circuit.
According to the vertical single rope winding hoist slack rope protection unit, the traction steel wire of the steel wire and tensioning state
Rope is parallel.
According to the vertical single rope winding hoist rope-loosing protection device, the acoustic-optic alarm be by warning lamp and
Alarm bell concatenates.
According to the vertical single rope winding hoist the rope-loosing protection device ,+24V of the acoustic-optic alarm and power supply
End connection, elevator drum are connect with power ground one end.
According to the vertical single rope winding hoist rope-loosing protection device, the time-delay relay is on-delay relay
Device, normally-closed contact are connect with intermediate relay, and the control loop of elevator motor contactor is accessed in intermediate relay contact.
Technical solution of the present invention has the following characteristics that
Hanging wirerope arranged beneath of the present invention between garage and derrick has steel wire.Steel wire both ends pass through insulation
Son is fixed on garage and derrick, so that steel wire and the earth insulate.Apply the direct current of 24V between steel wire and wirerope
Source, when steel wire rope looseness is bent to a certain extent, wirerope is contacted with steel wire, and circuit conducting passes through relay and controls master
Power cut-off, elevator brake, avoids reel from continuing to run and accident occurs.
1, the present apparatus can solve the problems, such as the rope creep protection of elevator, when steel wire rope looseness, will start sound-light alarm dress
It sets, improves the prompting to driver；Relaxation contact with each other the time reach setting the time, and then cut off main power circuit, protection promoted
The safe operation of equipment.
2, the present apparatus sets up steel wire between winding houses and derrick, under capable of detecting after steel wire rope looseness rapidly
It hangs down, earlier compared to traditional rope creep protection trigger point, finds the generation of failure as early as possible.
3, setting time-delay relay controls main power source, malfunction caused by capable of effectively avoiding because of reasons such as external disturbances
Make, it is ensured that promote quality.
Detailed description of the invention
Fig. 1 is rope loosening protection device for hoister structural schematic diagram.
Fig. 2 is rope loosening protection device for hoister left view structural representation.
Fig. 3 is the electric control theory schematic diagram of rope-loosing protection device.
In attached drawing: 1, winding houses；2, haulage cable；3, steel wire；4, insulator；5, elevator drum； 6,
Derrick；7, head sheave；8, insulator installs side；9, signal wire；10, warning lamp；11, alarm bell；12, time-delay relay.
Specific embodiment
The present invention will be further described by 1-2 with reference to the accompanying drawing.
As shown in Figure 1, the present apparatus mainly by: for detecting steel wire 3, the acoustic-optic alarm, delay of haulage cable
Relay, composition.The steel wire 3 of strip is located at immediately below haulage cable 2, is mounted on derrick by the insulator 4 at both ends
6, between winding houses 1.The steel wire is the rectangular metal net that length is much larger than width, the insulation that each vertex passes through installation
Son is fixed.The signal wire 9 that steel wire 3 connects is concatenated with acoustic-optic alarm, then accesses one end of power supply, the other end of power supply
It is connect with elevator drum 5；Time-delay relay is in parallel with acoustic-optic alarm, and time-delay relay normally-closed contact accesses elevator letter
Number locked loop.
Preferably, the steel wire 3 is parallel with haulage cable.3 both ends of steel wire are separately fixed at by insulator
On winding houses and derrick, it is arranged in parallel with the haulage cable 2 of tensioning state, and keep a fixed spacing.The sound-light alarm
Device is concatenated by warning lamp 10 and alarm bell 11.Warning lamp and alarm bell can use the combined aural and visual alarm of operating voltage 24V.
By directly leading out 24V DC power supply on winding houses control panel or by AC/DC power module, cathode, which is connected to, to be mentioned
It rises on machine cylinder side wall (i.e. elevator with connecing DC power supply), anode is connected on steel wire.On electrode line road, steel wire 3 connects
The signal wire connect is connected in series with warning lamp, alarm bell, then accesses positive terminal.Time-delay relay coil one end and signal wire connect
It connects, the other end is connect with positive terminal, i.e., in parallel with acoustic-optic alarm.The time-delay relay is energization delay relay, is prolonged
When relay it is in parallel with acoustic-optic alarm, time-delay relay normally-closed contact access elevator signal block circuit.Be delayed relay
Device obtain it is electric reach setting time, normally-closed contact just will disconnect, so disconnect elevator signal block circuit, elevator contactor
Control loop power loss, elevator are shut down.
In the process of running, haulage cable is typically in tension, at regular intervals with steel wire, 24V AC line
Road is in an off state, and warning lamp, alarm bell are failure to actuate, time-delay relay normally-closed contact, that is, output end, is in normally off, is promoted
The conducting of owner's power supply, elevator are in operating status.As shown in phantom in Figure 2, when there is situations such as card tank, haulage cable 2
It relaxes, since wirerope self weight generation is sagging, haulage cable will be contacted with steel wire, and 24V DC power supply is connected, this
When warning lamp and alarm bell movement, prompt operation driver's haulage cable occur slack rope, time-delay relay simultaneously it is electric, be delayed one section
Time is more than setting value, will be acted, and output end normally-closed contact disconnects, and the main power source locked loop of elevator is disconnected, and is promoted
Machine stops working.
In actual moving process, haulage cable can be swung up and down, and may touch steel wire, can also be sent out at this time
Phenomenon, the sending of acousto-optic warning signal meeting short time is connected in raw 24V DC line.Due to being provided with time-delay relay, main power source
It can't cut off, will not influence normal production.Delay time is set according to the actual situation, and only haulage cable connects with steel wire
It touches time long enough (such as 5S), time-delay relay can just act, and output end can just cut off main power source, can effectively avoid missing
De-energizing actions.
The device is using 24V DC power supply in winding houses, using haulage cable and steel wire as a contact switch,
It when relaxation occurs for haulage cable, is in contact with steel wire, triggering DC line conducting causes other component to act.
The device can be occurred simultaneously sound and light signal and effectively mentioned using two kinds of component series systems of warning lamp and alarm bell when line conduction
Show that driver already breaks down.The device controls main power source mode using time-delay relay, can effectively avoid grasping because of driver
Haulage cable caused by making mistakes etc. is acutely swung up and down, and touches steel wire, and caused elevator misses power blackout situation, Neng Gouyou
Effect avoids malfunctioning.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to structure of the invention
Think and protection scope is defined, without departing from the design concept of the invention, ordinary engineering and technical personnel in this field
To all variations and modifications that technical solution of the present invention is made, protection scope of the present invention should all be fallen into.
Claims (5)
1. a kind of vertical single rope winding hoist rope-loosing protection device, it is characterised in that:
It include: for detecting the steel wire of haulage cable (3), acoustic-optic alarm, time-delay relay, the steel wire of strip
(3) it is located at immediately below haulage cable (2), is mounted between derrick (6), winding houses (1) by the insulator (4) at both ends,
Steel wire (3) connection signal wire (9) concatenate with acoustic-optic alarm, then access power supply one end, the other end of power supply and
Elevator drum (5) connection；Time-delay relay is in parallel with acoustic-optic alarm, and time-delay relay normally-closed contact accesses elevator letter
Number locked loop.
2. vertical single rope winding hoist rope-loosing protection device according to claim 1, it is characterised in that: the steel wire
(3) parallel with the haulage cable of tensioning state.
3. vertical single rope winding hoist rope-loosing protection device according to claim 1, it is characterised in that: the acousto-optic report
Alarm device is concatenated by warning lamp (10) and alarm bell (11).
4. vertical single rope winding hoist rope-loosing protection device according to claim 1, it is characterised in that: the acousto-optic report
The connection of the end+24V of alarm device and power supply, elevator drum are connect with power ground one end.
5. vertical single rope winding hoist rope-loosing protection device according to claim 1, it is characterised in that: it is described delay after
Electric appliance is energization delay relay, and normally-closed contact is connect with intermediate relay, and elevator motor is accessed in intermediate relay contact
The control loop of contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920147372.5U CN209635692U (en) | 2019-01-29 | 2019-01-29 | A kind of vertical single rope winding hoist rope-loosing protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920147372.5U CN209635692U (en) | 2019-01-29 | 2019-01-29 | A kind of vertical single rope winding hoist rope-loosing protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209635692U true CN209635692U (en) | 2019-11-15 |
Family
ID=68479779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920147372.5U Active CN209635692U (en) | 2019-01-29 | 2019-01-29 | A kind of vertical single rope winding hoist rope-loosing protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209635692U (en) |
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2019
- 2019-01-29 CN CN201920147372.5U patent/CN209635692U/en active Active
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