CN2581616Y - Cage lifter - Google Patents

Abstract

The utility model relates to a lifting mechanism used for hanging baskets at the time of air operation, particularly a lifter of which the work wire rope is wound on an inner tooth disc with an alpha shape. The utility model has a main technical proposal that the inner part of a transverse hole of a box body is provided with a worm wheel and a gear shaft which are mutually connected; the inner part of a longitudinal hole of the box body is provided with a worm screw which is engaged with the worm wheel. The utility model is characterized in that the inner part of the transverse hole of the box body is provided with an inner tooth disc which is engaged with a gear on the gear shaft; the wheel edge of the inner tooth disc is provided with a pinch roller which is installed on the box body; the upper part of the worm screw is installed on the box body by a bearing; a braking block of a braking mechanism is installed on the worm screw and is provided with a centrifugal block and a rubbing pair which are jointed; both ends of the rubbing pair are mutually connected by springs; the outer part of the rubbing pair is provided with a braking hub which is installed on the box body. In the lifter, the work wire rope is wound on the inner tooth disc with an alpha shape, and therefore, the utility model has the advantages of simple mechanism and better reliability and security.

Description

Hanging basket hoisting

Technical field

Used hoisting mechanism on hanging basket when the utility model relates to a kind of aerial work, refer in particular to a kind of load cable be wound in " α " shape in elevator on the fluted disc.

Background technology

To the outside Wall Cleaning of highrise building, maintenance and maintenance the time, all need to use a kind of safe hanging basket, utilize this hanging basket that the workman is winched to the height of requirement, the workman stands in the hanging basket and exterior wall to be cleaned and work such as maintenance.The mechanism that hanging basket is promoted is referred to as elevator, in the prior art, elevator has two rollers, load cable is wound between two rollers with serpentine, one circle pinch roller is set at the roller edge again, load cable is pressed on the roller, to increase the frictional force between wire rope and roller, when roller rotates, just can be with hanging basket to rise or decline.The defective of this device is because needs one circle pinch roller guarantees the frictional force between wire rope and roller, thereby mechanism's more complicated, breaks down easily.

Summary of the invention

The purpose of this utility model is a kind of novel hanging basket hoisting of design, and in this elevator, load cable is wound on the interior fluted disc with " α " shape, need not utilize a lot of pinch rollers to guarantee frictional force between wire rope and roller, therefore, mechanism is simple, and reliability and security is all relatively good.

Its main technical schemes is that interconnective worm-gear toothing wheel shaft is set in the transverse holes of casing, in vertical hole of casing, worm screw is arranged, worm gear and worm engaging, it is characterized in that in the transverse holes of casing being provided with gear shaft on the interior fluted disc of gears engaged, at the wheel rim of interior fluted disc the pinch roller that is installed on the casing is arranged.

The top of worm screw utilizes bearing to be installed on the casing, on worm screw, connect arrestment mechanism, brake block in the arrestment mechanism is installed on the worm screw, on brake block, there be involutory centrifugal, involutory friction pair is arranged outside centrifugal, the two ends of friction pair utilize spring to interconnect, and are the braking hub that is installed on the casing outside friction pair.

Mounting spring plate on casing, sleeve spring behind the hole on the connecting rod insertion latch plate connects spring base in the bottom of connecting rod, and the upper end of connecting rod is connected with two approximately parallel linking arms, the other end at two linking arms utilizes bearing pin to connect pinch roller, and pinch roller is pressed on the interior fluted disc.

Utilize the hinged wheel plate of bearing pin respectively in the inboard of two linking arms, utilize bearing pin respectively to connect 1 pinch roller respectively at the two ends of wheel plate, two pinch rollers are pressed in respectively on the interior fluted disc.

Position corresponding to interior fluted disc on casing is provided with guide pad, and grooving is arranged on guide pad; Be provided with respectively into and out of the rope guide pipe in position corresponding to interior fluted disc; At position wear-resisting circle is set corresponding to interior fluted disc; In the both sides of casing case lid and little case lid are set respectively, on casing, utilize the platen steel wire to connect manually dish.

The utility model has the advantages that owing to adopt worm gear, worm screw and interior fluted disc gears engaged secondary driving system compare with three grades of original transmissions, it is relatively simple for structure; And because the fit form of wire rope and interior fluted disc is a α shape, compare, reduce the wheel of a driving wire rope with original S shape, reduced the pinch roller that is pressed in the internal tooth plate edge, thereby, the wearing and tearing of wire rope reduced, reduce the degree of fatigue of wire rope, prolonged the application life of wire rope; In addition, this device also can improve the hoisting velocity of elevator, thereby has improved operating efficiency.

Description of drawings

Fig. 1 is a structure chart of the present utility model.

The specific embodiment

As shown in the figure: interconnective worm gear 9 and gear shaft 12 are set in the transverse holes of casing 72, in vertical hole of casing 72, worm screw 16 is arranged, worm gear 9 and worm screw 16 engagements, in the transverse holes of casing 72, be provided with gear shaft 12 on the interior fluted disc 67 of gears engaged, at the wheel rim of interior fluted disc 67 pinch roller 43 that is installed on the casing 72 is arranged.

The top of worm screw 16 utilizes bearing 19 to be installed on the casing 72, on worm screw 16, connect arrestment mechanism, brake block 23 in the arrestment mechanism is installed on the worm screw 16, on brake block 23, there be involutory centrifugal 22, involutory friction pair 21 is arranged outside centrifugal 22, the two ends of friction pair 21 utilize spring 27 to interconnect, and are the braking hub 24 that is installed on the casing 72 outside friction pair 21.In the ordinary course of things, because the effect of spring, centrifugal is furthered, and fits together, and when rotating speed is excessive, under centrifugal action, makes centrifugal compressing friction pair, forces friction pair to be pressed on the braking hub, plays the speed limit effect.

Mounting spring plate 38 on casing 72, sleeve spring 37 behind the hole that connecting rod 29 inserts on the latch plate 38, bottom at connecting rod 29 connects spring base 35, the upper end of connecting rod 29 is connected with two approximately parallel linking arms 28, the other end at two linking arms 28 utilizes bearing pin 41 to connect pinch roller 43, and pinch roller 43 is pressed on the interior fluted disc 67.

Utilize bearing pin 31 hinged wheel plates 30 in the inboard of two linking arms 28 respectively, utilize bearing pin 41 respectively to connect 43, two pinch rollers 43 of 1 pinch roller at the two ends of wheel plate 30 respectively and be pressed in respectively on the interior fluted disc 67.

Position corresponding to interior fluted disc 67 on casing 72 is provided with guide pad 49, on guide pad 49, grooving is arranged, be provided with respectively into and out of rope guide pipe 52,74 in position corresponding to interior fluted disc 67, wear-resisting circle 70 is set at the position corresponding to interior fluted disc 67, in order to avoid wire rope direct friction casing, make the casing wearing and tearing, case lid 64 and little case lid 4 are set respectively in the both sides of casing 72, so that casing is closed, on casing 72, utilize platen steel wire 57 to connect manually dish 54, when unexpected power failure, can change the position of hanging basket by rotation manual dish 54.

During work, load cable passes into rope guide pipe 52, the grooving in the grooving on guide pad 49 enters on the fluted disc 67, on the interior fluted disc 67 around behind the circle again the grooving from the guide pad 49 pass, make wire rope be α shape, pass from rope stretching guide pipe 74 at last; The effect of guide pad is to guarantee that wire rope is positioned at the grooving of internal tooth plate edge all the time with the form of α.The pad 48,50 of corrective action can be set, to regulate the position of guide pad 49 with respect to interior fluted disc 67 in the both sides of guide pad 49.

The upper end of brake block 23 is connected with shaft of motor, and actuating motor drives worm screw 16 by brake block 23 and rotates, and worm screw 16 drives worm gear 9 and rotates, and worm gear 9 driven gear axle 12 again rotates, and gear shaft 12 drives in the interior fluted disc 67 of its engagement and rotates.Brake block plays the effect of shaft coupling simultaneously.

When the velocity of rotation of worm screw surpasses to a certain degree, centrifugal 22 in the arrestment mechanism under action of centrifugal force, overcome the pulling force of spring 27, with friction pair 21 to extrapolation, friction pair is pressed on the braking hub 24, utilize the frictional force that produces to force the velocity of rotation of worm screw 16 slack-off therebetween, maintain work under the normal state to guarantee worm and gear.

Latch plate is fixedly connected on the casing 72, connecting rod 29 can move in the hole of latch plate 38, spring 37 is a stage clip, fixedly connected with spring base 35 with linking arm 28 respectively in the two ends up and down of connecting rod 29, therefore under the effect of spring, the pinch roller 43 that is installed on the linking arm 28 is subjected to one downward power all the time, be pressed on the interior fluted disc 67, wheel plate 30 can rotate around the bearing pin 31 at its middle part, can guarantee that like this two pinch rollers 43 that are installed on wheel plate 30 two ends regulate its position automatically, state with a kind of the best is pressed on the interior fluted disc 67, when in the grooving of interior fluted disc 67 load cable being arranged, in just tightly being pressed in load cable, pinch roller 43 on the fluted disc 67, makes the bigger frictional force of generation between wire rope and interior fluted disc, when rotating, can drive wire rope and move together with fluted disc in guaranteeing.

Among the figure 1,34,39,51,60,62 is screw, plug cock 2 is used to clog the more hole of oil change, 3 for being used for the plug cock pad of Seal Oil, 5 is O-ring seals, 6,15,18 is shaft block ring, 7,11,42,66,68,78 is bearing, 8 for being used to adjust the adjustment packing ring of worm gear position, 10 for being used for the loop bar of positioning tooth wheel shaft 12,13,80 is self-locking nut, 14 for being used to clog the stopple in the hole that discharges hot air, 17,81 is the flat key that is used to install, 20,44,77 is the hole back-up ring that is used to locate, 25 is O-ring seals, 26,69 is the oil sealing that seals, 32 covers for location wheel plate 30,33 pads for the distance that is used to adjust wheel plate and linking arm, 36 is resilient key, 40 stay tubes for the spacing arm that is located by connecting, 45 axle sleeves for the location pinch roller, 46 for to avoid dust to enter the dust cover of bearing, 47 little axles for the arm that is used to be located by connecting, 53 manual flake downs for being used to prevent that manual dish from coming off, 55 is spring washer, 56,79 is packing ring, 58 is that the axle that connects elevator and working platform is used assembly, and 59 is the lock pin assembly of fixed pin shaft, and 61 is bolt, 63 is elastic cylindrical pin, 65 for adjusting packing ring, and 71 is handle, and 73 is square nut, 75 is split washer, and 76 for being equivalent to the capping of oil sealing.

Claims (9)

1, hanging basket hoisting, interconnective worm gear (9) and gear shaft (12) are set in the transverse holes of casing (72), worm screw (16) is arranged in vertical hole of casing (72), worm gear (9) and worm screw (16) engagement, it is characterized in that in the transverse holes of casing (72) being provided with gear shaft (12) on the interior fluted disc (67) of gears engaged, at the wheel rim of interior fluted disc (67) pinch roller (43) that is installed on the casing (72) is arranged.

2, elevator according to claim 1, the top that it is characterized in that worm screw (16) utilizes bearing (19) to be installed on the casing (72), go up the connection arrestment mechanism worm screw (16), brake block in the arrestment mechanism (23) is installed on the worm screw (16), involutory centrifugal (22) are arranged on brake block (23), involutory friction pair (21) is arranged outside centrifugal (22), the two ends of friction pair (21) utilize spring (27) to interconnect, and are the braking hub (24) that is installed on the casing (72) outside friction pair (21).

3, elevator according to claim 1, it is characterized in that going up mounting spring plate (38) at casing (72), sleeve spring (37) behind the hole on connecting rod (29) the insertion latch plate (38), bottom at connecting rod (29) connects spring base (35), the upper end of connecting rod (29) is connected with two approximately parallel linking arms (28), the other end at two linking arms (28) utilizes bearing pin (41) to connect pinch roller (43), and pinch roller (43) is pressed on the interior fluted disc (67).

4, according to claim 1 or 3 described elevators, it is characterized in that utilizing the hinged wheel plate of bearing pin (31) (30) respectively in the inboard of two linking arms (28), utilize bearing pin (41) respectively to connect 1 pinch roller (43) respectively at the two ends of wheel plate (30), two pinch rollers (43) are pressed in respectively on the interior fluted disc (67).

5, elevator according to claim 1 is characterized in that in the position that casing (72) is gone up corresponding to interior fluted disc (67) guide pad (49) being set, and on guide pad (49) grooving is arranged.

6, elevator according to claim 1 is characterized in that being provided with respectively into and out of rope guide pipe (52), (74) corresponding to the position of interior fluted disc (67) in the upper and lower part of casing (72).

7, elevator according to claim 1 is characterized in that at the position that casing (72) is gone up corresponding to interior fluted disc (67) wear-resisting circle (70) being set.

8, elevator according to claim 1 is characterized in that being provided with respectively in the both sides of casing (72) case lid (64) and little case lid (4).

9, elevator according to claim 1 is characterized in that utilizing on casing (72) platen steel wire (57) to connect manually dish (54).