A kind of elevator actuating device stall fall arrest catch gear
Technical field
The present invention relates to a kind of elevator gear, especially relate to a kind of elevator actuating device stall fall arrest catch gear.
Background technology
Conventional elevator structure, for be rotated by direct motor drive roller, roller is wound around load-transfer device, and roller driving conveying belt operates, and arrange platform on the conveyor belt, therefore the running of load-transfer device makes lifting platform, completes the elevating function of platform.When coupler between electrical motor and roller disconnects, elevator running stall, if roller is rotated further, can cause very large danger, therefore, for avoiding elevator running stall to cause roller to continue the phenomenon of idle running, needing pair roller barrel to operate and catch gear is set.
Existing elevating and locking mechanism mainly adopts travel switch mode to realize, and mechanism is complicated, take up room comparatively large, and stability is very bad.
Chinese patent CN 102758426 A discloses a kind of latching device of elevating platform, comprise platform support, locking rack, first actuator, for spud leg and the lifter rack be arranged on spud leg of support platform support, first actuator moves in order to drive locking rack, locking rack is made to engage with lifter rack or to be separated, described elevating platform latching device also comprises swing fluid cylinder, described swing fluid cylinder one end is articulated with on the A point of platform support, the other end is articulated with on the B point of locking rack, when the height of adjusting pole platform, angle a between line segment AB and spud leg is more than or equal to 0 degree and is less than or equal to 90 degree.The latching device of above-mentioned elevating platform swings the rodless cavity of fluid cylinder and the oil pressure of rod chamber by adjustment, realizes the accurate adjustment of adjustment locking rack upper and lower displacement, has saved the time of adjustment.But said apparatus vibrational power flow is complicated, and locking sensitivity is poor, and stability has much room for improvement.
Summary of the invention
Object of the present invention is exactly providing a kind of compact conformation to overcome defect that above-mentioned prior art exists, saving space, the elevator actuating device stall fall arrest catch gear that easy to adjust, locking effect is good.
Object of the present invention can be achieved through the following technical solutions:
A kind of elevator actuating device stall fall arrest catch gear, be arranged on elevator actuating device, described elevator actuating device comprises electrical motor, roller, coupler and roller brake facing, described roller is connected with motor output end by coupler, the two ends of described roller are provided with roller brake facing, described catch gear comprises tight device of stopping, travel switch and controller, described tight device of stopping is arranged on the side of roller brake facing, described travel switch is arranged on coupler place, described tight device of stopping is connected with controller with travel switch simultaneously,
Disconnect when coupler or touch travel switch when unclamping, travel switch signal transmission is to controller, and controller controls tight device startup of stopping, and locking roller brake facing, stops the rotation of roller.
Described tight device of stopping comprises two panels brake clamp, and two panels brake clamp lays respectively at the two sides of roller brake facing, and described controller controls the merging of two panels brake clamp or unclamp roller brake facing is locked or unlocks.
The two ends of described roller are respectively equipped with the first roller brake facing and the second roller brake facing, and described tight device of stopping is arranged on the side of the first roller brake facing.
Described tight device of stopping is provided with two, lays respectively at the both sides, front and back of roller, and is arranged on the side of the first roller brake facing.
The second described roller brake facing side is provided with manual locking device, and described manual locking device is plugged into the second roller brake facing internal locking second roller brake facing, stops the rotation of roller.
The second described roller brake facing offers spliced eye, described manual locking device is provided with shank, manual toggle shank inserts the locking that spliced eye realizes the second roller brake facing.
Described coupler is chain coupling.
The two ends of described roller are connected with two electrical motors respectively by two coupler.
Described controller is PLC.
When elevator actuating device normally runs, described stop tight device and manual locking device all inoperative, roller still freely rotates, when coupler unclamps or disconnect, coupler can touch travel switch, travel switch signal transmission is to controller, controller controls tight device startup of stopping, and locking roller brake facing, stops the rotation of roller, owing to being provided with former and later two tight devices of stopping, therefore, gripping power is larger, and locking effect is better, fall arrest when achieving elevator stall, improves the safety in operation of device.
Compared with prior art, the present invention has the following advantages and beneficial effect:
1, the present invention is without the need to arranging responsible locking mechanism, and it is reliable and stable that equipment self can realize lifting locking, realizes safety first;
2, by travel switch can be sensitive detection coupler whether have fault, and in time information can be passed to controller, the controller tight device that controls at once to stop is locked, and therefore, lock sensitive, speed of response is fast.
3, be also provided with manual locking device, can manual locking be carried out, improve equipment safety supportability.
4, compact conformation, saves greatly and takes up room, simultaneously lower to processing request, reduces manufacturing cost.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of elevator actuating device stall fall arrest catch gear of the present invention;
Fig. 2 is elevator actuating device stall fall arrest catch gear plan structure schematic diagram of the present invention;
Fig. 3 is tight apparatus structure schematic diagram of stopping.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
A kind of elevator actuating device stall fall arrest catch gear, as shown in Figure 1 and Figure 2, be arranged on elevator actuating device, elevator actuating device comprises electrical motor 1, roller 2, coupler 3 and roller brake facing 4, and the two ends of roller 2 are connected with two electrical motor 1 mouths respectively by two coupler 3.The two ends of roller 2 are respectively equipped with the first roller brake facing 41 and the second roller brake facing 41, catch gear comprises stop tight device 5, travel switch 6 and controller, tight device 5 of stopping is arranged on the side of the first roller brake facing 41, tight device 5 of stopping is provided with two, lay respectively at the both sides, front and back of roller 2, and be arranged on the side of the first roller brake facing 41.Travel switch 6 is arranged on coupler 3 place, tight device 5 of stopping is connected with controller with travel switch 6 simultaneously, second roller brake facing 41 side is provided with manual locking device 7, and manual locking device 7 is plugged into the second roller brake facing 41 internal locking second roller brake facing 41, stops the rotation of roller 2.Second roller brake facing 41 offers spliced eye, manual locking device 7 is provided with shank, manual toggle shank inserts the locking that spliced eye realizes the second roller brake facing 41.Wherein, coupler 3 is chain coupling, and controller is PLC.
As shown in Figure 3, tight device 5 of stopping comprises two panels brake clamp, and two panels brake clamp lays respectively at the two sides of roller brake facing, and controller controls the merging of two panels brake clamp or unclamp roller brake facing is locked or unlocks.
When elevator actuating device normally runs, tight device 5 of stopping is all inoperative with manual locking device 7, roller 2 still freely rotates, when coupler 3 unclamps or disconnects, coupler 3 can touch travel switch 6, travel switch 6 signal transmission is to controller, controller controls tight device 5 of stopping and starts, and locking roller brake facing, stops the rotation of roller 2, owing to being provided with former and later two tight devices 5 of stopping, therefore, gripping power is larger, and locking effect is better, fall arrest when achieving elevator stall, improves the safety in operation of device.
Above-mentioned is can understand and use invention for ease of those skilled in the art to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, those skilled in the art, according to announcement of the present invention, do not depart from improvement that scope makes and amendment all should within protection scope of the present invention.