CN205240986U - Take low -speed to detect two -way overspeed governor that triggers with outage - Google Patents
Take low -speed to detect two -way overspeed governor that triggers with outage Download PDFInfo
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- CN205240986U CN205240986U CN201520925424.9U CN201520925424U CN205240986U CN 205240986 U CN205240986 U CN 205240986U CN 201520925424 U CN201520925424 U CN 201520925424U CN 205240986 U CN205240986 U CN 205240986U
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- Prior art keywords
- ratchet
- power
- speed limiter
- low
- speed detection
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Abstract
The utility model discloses take low -speed to detect two -way overspeed governor that triggers with outage relates to a two -way overspeed governor that is used for preventing that the elevator car accident from sliding. The utility model discloses purpose -built pawl, purpose -built pawl is one wholly, purpose -built pawl includes the left part of a body coupling, the middle part, the right part, the left part, the middle part, the side is two sides that parallel around the right part, the intermediate position of left part is provided with the round hole, the round hole is the through -hole, two sides in the axis and front and back of round hole are perpendicular, first cylinder is extended forward at the middle part, the front end of first cylinder is provided with the slot, the right part lower extreme is provided with the profile of tooth, the right part upper end is provided with the second cylinder, the axis of second cylinder is parallel with the axis of first cylinder, the front end of second cylinder surpasss the leading flank of right part, the rear end of second cylinder and the trailing flank parallel and level of right part.
Description
Technical field
The utility model relates to a kind of limiter of speed, particularly relates to a kind of for preventing the bidirectional speed limiter of the unexpected slippage of lift car.
Background technology
Along with modern high-rise building is on the increase, the usage quantity of elevator is also in continuous increase. In actual use procedure, find that there is electricityThe phenomenon of the unexpected slippage of ladder car occurs.
Bidirectional speed limiter is the parts that ensure elevator safety in elevator device, and it should produce in the time that lift car meets accident slippageAction, ensures the security that elevator uses, but because slippage is when initial, the translational speed of car is low, existing two-way speed limitingDevice cannot detect, moves to prevent that lift car from continuing unexpected slippage so safety device cannot produce, and the security of elevator lacksFew guarantee.
Utility model content
The technical problems to be solved in the utility model is to improve the deficiency of existing elevator technology, and a kind of band low-speed detection and power-off are providedThe bidirectional speed limiter triggering, the security that improves elevator.
The bidirectional speed limiter that the utility model band low-speed detection and power-off trigger, comprises special ratchet, and described special ratchet is one wholeBody, described special ratchet comprises left part, middle part, the right part that one connects, the front and back sides of described left part, middle part, right part is equalBe two sides that parallel, the centre position of described left part is provided with circular hole, and described circular hole is through hole, the axis of described circular holeWith former and later two lateral vertical, the first cylinder is extended forward at described middle part, and described the first cylindrical front end is provided with groove,Described right part lower end is provided with profile of tooth, and described right part upper end is provided with the second cylinder, described the second cylindrical axis and firstCylindrical axis is parallel, and described the second cylindrical front end exceeds the leading flank of right part, and described the second cylindrical rear end is with rightThe trailing flank of portion is concordant.
The bidirectional speed limiter that the utility model band low-speed detection and power-off trigger, comprising rope sheave be arranged on common on rope sheaveRatchet, described special ratchet is arranged on rope sheave and is positioned at the axial symmetry face of common ratchet, the direction of action of described special ratchet withThe direction of action of common ratchet is identical.
The bidirectional speed limiter that the utility model band low-speed detection and power-off trigger, comprising encoder, also comprises sheave shaft, instituteState the outer surface that rope sheave is fixedly connected on described sheave shaft, described encoder is arranged on the axle head of described sheave shaft.
The bidirectional speed limiter that the utility model band low-speed detection and power-off trigger, comprising power-off flip flop equipment, comprise support andBe installed on the bidirectional speed limiter that occupy fundamental position in support outside, described power-off flip flop equipment comprises electromagnet and interlock trigger unitStructure, described electromagnet is installed on support outside, and described interlock trigger mechanism is installed on support inner side, when described electromagnet energising, drawsThe action of moving interlock trigger mechanism.
The bidirectional speed limiter that the utility model band low-speed detection and power-off trigger, comprising ratchet, described ratchet is arranged on supportUpper, the edge of described ratchet is provided with multiple hook tooths, and described hook tooth can engage with the profile of tooth of special ratchet.
The bidirectional speed limiter that the utility model band low-speed detection and power-off trigger, the tooth of wherein said ratchet has 8.
The bidirectional speed limiter that the utility model band low-speed detection and power-off trigger, wherein also comprises axle, and described special ratchet passes through axleBe arranged on described rope sheave.
The bidirectional speed limiter that the utility model band low-speed detection and power-off trigger, wherein said axle is screw shaft.
The bidirectional speed limiter that the utility model band low-speed detection and power-off trigger, wherein said electromagnet power-off is by control system control.
The bidirectional speed limiter difference from prior art that the utility model band low-speed detection and power-off trigger is that the utility model existsOn the basis of original bidirectional speed limiter, increased a special ratchet, special ratchet can coordinate with other parts, improves elevatorThe security using, special ratchet is an entirety, for convenience detach and maintenance; Increase encoder, as speed detector;Also increase power-off flip flop equipment. Compared with former elevator safety system, there is no large change, cost increase is very little.
In the utility model, encoder is installed on support outside, and is fixedly connected with sheave shaft, and sheave shaft is fixedly connected with rope sheave,In the time that lift car meets accident slippage, rope sheave certainly leads to rotation, and drives the coding of the encoder that is installed on sheave shaft axle headDevice core together rotates, and encoder can produce signal and pass the signal to the control system of bidirectional speed limiter. With the rotation of rope sheave,The special ratchet being installed on rope sheave can be depressed by interlock trigger mechanism, the tooth of the tooth of special ratchet and rack-mount ratchetBe meshed, ratchet is rotated, and then realize molar behavior, the utility model initially just can produce in lift car generation slippageLively work, ensures elevator safety.
Below in conjunction with accompanying drawing, the bidirectional speed limiter with low-speed detection and power-off triggering of the present utility model is described further.
Brief description of the drawings
Fig. 1 is the main TV structure schematic diagram of the bidirectional speed limiter of the utility model band low-speed detection and power-off triggering;
Fig. 2 is right TV structure schematic diagram of the present utility model;
Fig. 3 is profile of the present utility model;
Fig. 4 is the stereogram of special ratchet in the utility model;
Fig. 5 is the front view of special ratchet in the utility model;
Fig. 6 is the top view of special ratchet in the utility model;
Fig. 7 is the use state diagram of trigger mechanism of linking in the utility model, and what dotted line represented is when elevator normally moves, and interlock is touchedSend out the residing position of mechanism, what solid line represented is in the time that lift car produces unexpected slippage, special ratchet forwards in figure shown in solid linePosition, the state that trigger mechanism is depressed, the profile of tooth of special ratchet engages with hook tooth is linked.
Fig. 8 is the connection layout of slide-bar and connecting plate in the utility model.
Detailed description of the invention
As shown in Figure 1, the bidirectional speed limiter that the utility model band low-speed detection and power-off trigger, comprises that occupy a fundamental positionBidirectional speed limiter, also comprise support 1, bidirectional speed limiter is arranged on support 1 outside.
In conjunction with shown in Fig. 2 and Fig. 3, also comprise rope sheave 6, ratchet 10, sheave shaft 2, be arranged on the common sour jujube on rope sheave 6 againPawl 7 and special ratchet 8, special ratchet 8 is positioned at the axial symmetry face of common ratchet, the direction of action of special ratchet 8 and common sour jujubeThe direction of action of pawl 7 is identical. Common ratchet 7 and special ratchet 8 are all arranged on respectively on rope sheave 6 by axle 9, and axle 9 is spiral shellBar axle. Ratchet 10 empty sets, on sheave shaft 2, and are arranged on support 1 by pin 11, and ratchet 10 is connected with connecting rod 12;The edge of ratchet 10 is provided with multiple hook tooths, and in the present embodiment, the number of hook tooth is 8, can certainly be other number,Hook tooth can engage with the profile of tooth of special ratchet 8 83.
Rope sheave 6 is fixedly connected on the middle part outer surface of sheave shaft 2, and the axle head of sheave shaft 2 is provided with encoder 3.
In conjunction with shown in Fig. 4 to Fig. 6, special ratchet 8 is as a whole, special ratchet comprise left part, middle part that one connects,Right part, the front and back sides of left part, middle part, right part is two sides that parallel, and the centre position of left part is provided with circular hole 81,Circular hole 81 is through hole, the axis of circular hole 81 and former and later two lateral vertical, and the first cylinder 82, the first is extended forward at middle partThe front end of cylinder 82 is provided with groove 821, and right part lower end is provided with profile of tooth 83, and right part upper end is provided with the second cylinder 84,The axis of the second cylinder 84 is parallel with the axis of the first cylinder 82, and the front end of the second cylinder 84 exceeds the leading flank of right part,Second rear end of cylinder 84 and the trailing flank of right part are concordant.
The utility model comprises power-off flip flop equipment, and power-off flip flop equipment comprises electromagnet 4 and interlock trigger mechanism 5, electromagnet 4Be installed on support 1 outside, interlock trigger mechanism 5 is installed on support 1 inner side, and electromagnet 4 pulls interlock trigger mechanism while energising5 actions, electromagnet power-off is by control system control.
Support 1 is U-shaped, and support 1 comprises the header board 21 and the rear plate 22 that be arranged in parallel, and header board 21 and rear plate 22 form U-shaped,Electromagnet 4 is arranged on header board 21 front sides, the two ends of sheave shaft 2 respectively by bearings on header board 21, rear plate 22.
Shown in Fig. 1-2, Fig. 7-8, interlock trigger mechanism 5 comprises connecting plate 61 and trigger mechanism 62, and trigger mechanism is for approximate" L " shape, by connecting, bearing pin 65 is hinged to be connected on header board 21 at the middle part of trigger mechanism 62, and trigger mechanism 62 can be around connecting pinAxle 65 rotates, and one end of trigger mechanism 62 connects back-moving spring 14 one end, and the other end of back-moving spring 14 and header board 21 are fixingConnect, one end of connecting plate 61 is hinged by bearing pin and trigger mechanism 62, and the other end of connecting plate 61 is fixedly connected with slide-bar 63,Header board 21 bottoms are provided with slotted hole 211, and the other end of slide-bar 63 is through slotted hole 211, and slide-bar 63 can be along slotted hole 211Move left and right, it is porose 631 that one end of slide-bar 63 arranges, and polished rod bolt 64 is housed in hole 631, and the bar portion of polished rod bolt 64 wearsVia hole 631 is also fixing with electromagnet 4.
The utility model is installed on elevator(lift) machine room in use. By governor rope, swelling device and elevator safety gear manipulation deviceBe connected, the translational speed of mapping lift car. And be connected with rope brake by brake cable.
When lift car is in the time stopping stop, control system can make electromagnet 4 power-off, and interlock trigger mechanism 5 is at back-moving spring 14Pull lower reset. In the time that lift car produces unexpected slippage, bidirectional speed limiter rope sheave 6 must rotate, and drive is installed on ropeThe encoder core of the encoder 3 of wheel shaft 2 axle heads together rotates, and encoder 3 can produce signal, and passes the signal to control systemSystem. With the rotation of bidirectional speed limiter rope sheave 6, be installed on the special ratchet 8 on rope sheave 6, can be depressed by interlock trigger mechanism 5(the second cylinder contacts to realize with trigger mechanism); The profile of tooth of special ratchet 8 is meshed with hook tooth, and ratchet 10 is producedRotate, drivening rod 12 moves, so that bidirectional speed limiter entirety produces mechanical action.
In the time that lift car exceeds the speed limit, bidirectional speed limiter produces action, is by being arranged on the piece that gets rid of on rope sheave, being greater than rule at centrifugal forceIn the situation of definite value, outwards throw away, promote paw and open, discharge common ratchet action, realize overall mechanical action.
Action, the lift car hypervelocity of handling safety clamp device or rope brake are action and the former elevator safety system of bidirectional speed limiterAction identical, do not belong to the utility model, do not repeat at this, the utility model in lift car generation slippage initially with regard to energyProduce action, can ensure lift running safety; The utility model increases encoder and special on the basis of former elevator safety partsRatchet, changes littlely, and cost increase is also little, integrates multi-functional, simple and effective.
The utility model, directly to trigger special ratchet as operating principle, makes bidirectional speed limiter produce mechanical action, has successfully solvedThe problem of the unexpected slippage of lift car, makes the service behaviour of elevator more safe and reliable.
Above-described embodiment is described preferred embodiment of the present utility model, not to of the present utility modelScope limits, and is not departing under the prerequisite of the utility model design spirit, and those of ordinary skill in the art are to the utility modelTechnical scheme various distortion and the improvement made, all should fall in the definite protection domain of the utility model claims.
Claims (9)
1. the bidirectional speed limiter with low-speed detection and power-off triggering, is characterized in that: comprise special ratchet, described special sour jujubePawl is an entirety, and described special ratchet comprises left part, middle part, the right part that one connects, before described left part, middle part, right partTrailing flank is two sides that parallel, and the centre position of described left part is provided with circular hole, and described circular hole is through hole, described circleThe axis in hole and former and later two lateral vertical, the first cylinder is extended forward at described middle part, and described the first cylindrical front end is establishedBe equipped with groove, described right part lower end is provided with profile of tooth, and described right part upper end is provided with the second cylinder, described second cylindricalAxis is parallel with the first cylindrical axis, and described the second cylindrical front end exceeds the leading flank of right part, described the second cylinderRear end concordant with the trailing flank of right part.
2. the bidirectional speed limiter with low-speed detection and power-off triggering according to claim 1, is characterized in that: comprise rope sheaveWith the common ratchet being arranged on rope sheave, described special ratchet is arranged on rope sheave and is positioned at the axial symmetry face of common ratchet, described inThe direction of action of special ratchet is identical with the direction of action of common ratchet.
3. the bidirectional speed limiter with low-speed detection and power-off triggering according to claim 2, is characterized in that: comprise codingDevice, also comprises sheave shaft, and described rope sheave is fixedly connected on the outer surface of described sheave shaft, and described encoder is arranged on described rope sheaveThe axle head of axle.
4. the bidirectional speed limiter with low-speed detection and power-off triggering according to claim 3, is characterized in that: comprise power-offFlip flop equipment, comprises support and is installed on the bidirectional speed limiter that occupy fundamental position in support outside, described power-off flip flop equipment bagDraw together electromagnet and interlock trigger mechanism, described electromagnet is installed on support outside, and described interlock trigger mechanism is installed on support inner side,When described electromagnet energising, pull the action of interlock trigger mechanism.
5. the bidirectional speed limiter with low-speed detection and power-off triggering according to claim 4, is characterized in that: comprise ratchet,Described ratchet is rack-mount, and the edge of described ratchet is provided with multiple hook tooths, described hook tooth can with the tooth of special ratchetShape engagement.
6. the bidirectional speed limiter with low-speed detection and power-off triggering according to claim 5, is characterized in that: described ratchetTooth have 8.
7. the bidirectional speed limiter with low-speed detection and power-off triggering according to claim 6, is characterized in that: also comprise axle,Described special ratchet is arranged on described rope sheave by axle.
8. the bidirectional speed limiter with low-speed detection and power-off triggering according to claim 7, is characterized in that: described axle isScrew shaft.
9. the bidirectional speed limiter with low-speed detection and power-off triggering according to claim 8, is characterized in that: described electromagnetismIron power-off is by control system control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925424.9U CN205240986U (en) | 2015-11-19 | 2015-11-19 | Take low -speed to detect two -way overspeed governor that triggers with outage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925424.9U CN205240986U (en) | 2015-11-19 | 2015-11-19 | Take low -speed to detect two -way overspeed governor that triggers with outage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205240986U true CN205240986U (en) | 2016-05-18 |
Family
ID=55940065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520925424.9U Expired - Fee Related CN205240986U (en) | 2015-11-19 | 2015-11-19 | Take low -speed to detect two -way overspeed governor that triggers with outage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205240986U (en) |
-
2015
- 2015-11-19 CN CN201520925424.9U patent/CN205240986U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20161119 |