A kind of elevator traction sheave wear detector
Technical field
The utility model is related to elevator detection device technology fields more particularly to a kind of elevator traction sheave abrasion detection to fill
It sets.
Background technology
For elevator as main vertical transport tool in building, primary structure is that car passes through traction steel with counterweight
The connection of cord drives traction steel-cable to control the operation of elevator by traction machine, and traction steel-cable is wound on the traction sheave, and one
End suspension car, one end hang counterweight, and drive force sedan-chair is generated by the friction between traction steel-cable and traction race
Compartment moves up and down, opposite between the pressure and steel wire rope and race of race using steel wire rope with the rotation of traction sheave
The frictional force drives elevator operation that movement generates.
With the increase of traction race service life, the race of traction sheave will appear abrasion, with the increase of wear extent, rope
Groove shape changes, and the frictional force between traction steel-cable and grooving is caused to reduce, and car slipping, the car accidents such as surprisingly occur,
According to related request, when the race of traction sheave wears up to a certain range, need that traction sheave is placed under repair or replaced in time, such as
Repairing or replacing not in time will impact to elevator safety operation and to personal safety, but be lacked in the control of existing elevator safety
Weary effective detection means cannot detect, find the race wear condition of traction sheave in time, be typically only capable to periodically examining elevator
The wear condition of manual measurement traction sheave when repairing wastes a large amount of manpower and materials, and artificial overhaul efficiency is low, and the cost of overhaul is high,
It can not eliminate safe hidden trouble in time.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of elevator traction sheave proposed
Wear detector.
To achieve the goals above, the utility model uses following technical solution:
The side outer wall top of a kind of elevator traction sheave wear detector, including supporting rack, support frame as described above passes through spiral shell
Nail is fixed with display screen, and is provided with support shaft mounting hole, two support shaft mounting holes at the top of the both sides outer wall of supporting rack
Inner wall support shaft is connected with by bearing, and the side outer wall of support shaft has traction sheave, support frame as described above by key connection
Both sides inner wall bottom by being provided with limiting plate sliding slot, and the inner wall of two limiting plate sliding slots slidably connects limit
Plate, the side outer wall of two limiting plates and the side inner wall of two limiting plate sliding slots are fixed with buffering elastic by screw
Spring, and the opposite side outer wall bottom of two limiting plates is provided with slide plate sliding slot, the inner wall of two slide plate sliding slots slides
It is connected with the same slide plate, the top exterior walls both sides of the slide plate are provided with threaded hole, and the inner wall of two threaded holes passes through
It is threadedly connected to the side outer wall of adjusting screw rod, the top inner wall of the slide plate is fixed with loop bar by screw, and loop bar is interior
Wall is provided with wheel carrier sliding slot, and the inner wall of the wheel carrier sliding slot slidably connects wheel carrier, and the bottom of the bottom outer wall of wheel carrier and loop bar
Inner wall is fixed with the same thrust spring by screw.
Preferably, the bottom outer wall of two limiting plates is provided with adjusting screw rod mounting hole, and two adjusting screw rod peaces
The inner wall in dress hole is socketed with adjusting screw rod.
Preferably, it is provided with wheel shaft mounting hole at the top of the side outer wall of the wheel carrier, and the inner wall for taking turns shaft mounting hole is socketed with
The side outer wall of wheel shaft, wheel shaft has detection wheel by key connection.
Preferably, the side outer wall of the detection wheel is provided with ball mounting groove, and the inner wall of ball mounting groove is socketed with rolling
Pearl.
Preferably, the side outer wall of support frame as described above is fixed with alarm by screw, and alarm is connected with switch, opens
Connection is connected to processor.
Preferably, the side outer wall of the top exterior walls of the loop bar and limiting plate is fixed with Distance-sensing by screw respectively
Device and pressure sensor, and the signal output end of range sensor and the signal output end of pressure sensor pass through signal wire respectively
It is connect with the signal input part of processor.
The beneficial effects of the utility model are:
1. by the way that thrust spring and range sensor is arranged, thrust spring promotion detection wheel is attached at the surface of traction sheave,
When range sensor detects that the distance between loop bar and wheel carrier are more than predetermined value, alarm sends out alarm in time, can be to draging
The abrasion condition of running wheel is monitored in real time, is helped to eliminate safe hidden trouble in time, instead of the mode of artificial periodic inspection, be helped
In using manpower and material resources sparingly, the cost of overhaul is reduced;
2. by the way that limiting plate and pressure sensor is arranged, when traction sheave shifts the situation of displacement over time
When, traction sheave touches pressure sensor, and alarm reminds staff to repair in time, can monitor traction sheave in real time
Offset displacement situation, helps to improve security performance;
3. by the way that adjusting screw rod and slide plate is arranged, rotation adjusting screw rod can change the height of slide plate, can be according to difference
The traction sheave of specification and different mounting heights adjusts the height of detection wheel, keeps the device scope of application wider;
4. by the way that ball and detection wheel is arranged, sliding friction, effective protection traction sheave and detection wheel are replaced with rolling friction,
The part of impact force eliminated between traction sheave and limiting plate can be effectively buffered by the way that buffer spring is arranged, helps to extend product
Service life.
Description of the drawings
Fig. 1 be the utility model proposes a kind of elevator traction sheave wear detector structural schematic diagram;
Fig. 2 be the utility model proposes a kind of elevator traction sheave wear detector detection wheel structural schematic diagram.
In figure:1 traction sheave, 2 supporting racks, 3 display screens, 4 buffer springs, 5 limiting plates, 6 slide plates, 7 loop bars, 8 adjusting screw rods,
9 pressure sensors, 10 alarms, 11 thrust springs, 12 range sensors, 13 detection wheels, 14 balls, 15 wheel carriers.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-2, a kind of elevator traction sheave wear detector, including supporting rack 2, the side outer wall top of supporting rack 2
Portion is fixed with display screen 3 by screw, and is provided with support shaft mounting hole, two support shafts at the top of the both sides outer wall of supporting rack 2
The inner wall of mounting hole is connected with support shaft by bearing, and the side outer wall of support shaft has traction sheave 1 by key connection, supports
The both sides inner wall bottom of frame 2 by being provided with limiting plate sliding slot, and the inner wall of two limiting plate sliding slots be slidably connected it is limited
Position plate 5, the side outer wall of two limiting plates 5 and the side inner wall of two limiting plate sliding slots are fixed with buffer spring by screw
4, and the opposite side outer wall bottom of two limiting plates 5 is provided with slide plate sliding slot, the inner wall of two slide plate sliding slots is slidably connected
There is the same slide plate 6, the top exterior walls both sides of slide plate 6 are provided with threaded hole, and the inner wall of two threaded holes is connected by screw thread
It is connected to the side outer wall of adjusting screw rod 8, the top inner wall of slide plate 6 is fixed with loop bar 7 by screw, and the inner wall of loop bar 7 is provided with
The inner wall of wheel carrier sliding slot, wheel carrier sliding slot slidably connects wheel carrier 15, and the bottom outer wall of wheel carrier 15 and the bottom interior wall of loop bar 7 are equal
It is fixed with the same thrust spring 11 by screw.
In the utility model, the bottom outer wall of two limiting plates 5 is provided with adjusting screw rod mounting hole, and two adjusting screw rods
The inner wall of mounting hole is socketed with adjusting screw rod 8, wheel shaft mounting hole is provided at the top of the side outer wall of wheel carrier 15, and take turns shaft mounting hole
Inner wall be socketed with wheel shaft, the side outer wall of wheel shaft has detection wheel 13, the side outer wall of detection wheel 13 to be provided with rolling by key connection
Pearl mounting groove, and the inner wall of ball mounting groove is socketed with ball 14, the side outer wall of supporting rack 2 is fixed with alarm by screw
10, and alarm 10 is connected with switch, switch is connected with processor, the top exterior walls of loop bar 7 and the side outer wall of limiting plate 5 point
The pressure of the range sensor 12 and model JYB-KB-CW2000 that are not fixed with model IFRM18N1702 by screw passes
Sensor 9, and the signal output end of the signal output end of range sensor 12 and pressure sensor passes through signal wire and processing respectively
The signal input part of device connects, the model ARM9TDMI of processor.
Operation principle:Detection wheel 13 is in contact with traction sheave 1 always under the thrust of thrust spring 11, works as traction sheave
When 1 wear extent is more than predetermined value, range sensor 12 detects that the distance between wheel carrier 15 and loop bar 7 will be more than predetermined
Value, processor control alarm 10 according to the signal of range sensor 12 and send out alarm, when position offset occurs for traction sheave 1,
Traction sheave 1 touches pressure sensor 9, and processor controls alarm 10 according to the signal of pressure sensor 9 and sends out alarm, reminds
Staff repairs.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
Be confined to this, any one skilled in the art within the technical scope disclosed by the utility model, according to this practicality
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.