Closed-rope type lifter
The utility model relates to a kind of building hoist, especially leans on the closed-rope type lifter of spring force traction.
Below in conjunction with accompanying drawing the structure of application number 96101050.9 closed-rope type lifters is made brief description.
Fig. 3 is the structural representation of application number 96101050.9 closed-rope type lifters.
Fig. 4 is the cross sectional representation of Fig. 3;
Fig. 5 is that hoist ropes holds figure among Fig. 3 on traction sheave.
Fig. 6 is a traction sheave wheel Zhou Shangfen rope sheave and the arrangement plan that presss from both sides rope sheave among Fig. 3.
Fig. 7 is the A-A section-drawing of Fig. 6.
Fig. 8 is the B-B section-drawing of Fig. 6.
37. minutes rope sheave 38. folder rope sheaves of 28. pairs of rails of plate 10. safety door hooks, 11. guide rail bracket 12. hanging steel rope 13.16. top blocks, 14. regulating wheel 15. extension springs, 17. upper frame 18. Compress Springs, 19. angle pulley 20. safety latches, 21. spring 22. hanging baskets, 23. screw-button 26. Balance Iron casees, 27. backbones, 29. small extension springs, 30. slide blocks, 31. brake ribbons, 32. limiter of speed seats, 33. shaft couplings, 34. motor, 35. brakes, 36. reductors are hit in the 8. safety door hook rotating shafts 9. of 1. bases, 2. traction sheaves, 3. directive wheels, 4. traction steel-cable 5.25. pull bar 6.24. Compress Springs, 7. handles among the figure
With several hanging steel ropes arranged side by side (12), walking around top block (16,13) links to each other hanging basket (22) in the above with balance iron case (26), hanging an end of steel rope fastens on the turnbuckle (23) of balance iron case (26), the other end is fastened on safety latch (20) through the deflection sheave on the hanging basket (19), and safety latch passes compression spring (18).In addition with several traction steel-cables arranged side by side (4), every head end is fastened on the pull bar (25) of balance iron case (26), go up around the cornerite of a circle formation greater than 450 ° through traction sheave (2) and at traction sheave (2) centre, and through track adjusting wheel (3), end is fastened on the pull bar of hanging basket (22) (5).Adjust turnbuckle (23), make hanging steel rope (12), traction steel-cable (4) all is tightened up and forms a C/LOOP, and spring (6), (24) all are compressed and produce the required tensile force of traction sheave transmission.Hanging steel rope (12) in the middle of top block (13), (16) is gone up also has a tension wheel (14), is tightened on the upper frame (17) auto-tensioning with the elongation that adapts to steel rope in the work with extension spring (15).
In order to make hoist ropes (4) motion in an orderly manner on traction sheave (2), adopt to divide rope sheave and folder rope sheave to form the guide piece of hoist ropes: to enter traction sheave (2) and leave traction sheave (2) and locate respectively to load onto a branch rope sheave (37) at hoist ropes (4), divide the ring-shaped step of rope sheave (37) to embed in two hoist ropes (4), hoist ropes (4) separately, hoist ropes (4) is held in second garden of traction sheave (2) as circle; A folder of oblique installation rope sheave (38) directly over traction sheave (2), two ring-shaped steps of folder rope sheave clip hoist ropes (4) guiding, and hoist ropes (4) is held as spiral in first garden of traction sheave (2).
The reductor (36) that traction sheave (2) are housed on output shaft is through coupler (33), drg (35) is connected to form towing machine with electrical motor (34), two towing machines are installed on the base (1) of a guide rail bracket (11) symmetrically, every towing machine hanging basket of driving and a steady iron case are done one rise and one drop campaign, wherein, roller on the hanging basket is gone up motion at channel-section steel backbone (27), and steadily the roller of iron case clips the leg of angle limit guiding of paying rail (28).
The safety device of application number 96101050.9 closed-rope type lifters has: 1, with the broken rope protector of passing formula safety latch (20) as hanging steel rope (12); 2, with cranking type hook with safety tong (10) as the broken rope protector of traction steel-cable (4), 3, with the centrifugal velocity limiter of device when hanging prison downslide out of control of stopping that expand.The steel cable as long as break (12), under the promotion of spring (18), safety latch stretches out and inserts guide rail bracket (11); The traction steel-cable (4) as long as break, under the promotion of spring (6), pull bar (5) rises, and pushes and hits plate (9), makes hook with safety tong (10) rotate a hanging basket (22) and tangles on guide rail bracket; When external contractring brake (35) lost efficacy, slide block (30) overcomes to move with the brake band that is consolidated in velocity limiter seat (32) (31) outside the pulling force of small extension spring (29) and contacts, produce friction moment, hanging basket is at the uniform velocity descended, tangle hanging basket as there being the people can plate fixed handle (7) hook with safety tong (10) to be rotated in the hanging basket.
Application number 96101050.9 closed-rope type lifters, solved every shortcoming that steel rope is very long in the towing machine underneath type elevator, produced a kind of hanging basket and there is not weight ratio in balance iron, the pressured spring that contracts produces the required tensile force of traction transmission, compact conformation, light and handy novel elevating machine.Its steel rope is very short, and the height that equals guide rail bracket is compared with the elevator by the gravity traction, on the hoist ropes pulling force reduce half, motor power (output) reduces 20%.Yet use through nearly 1 year building site, find to have following deficiency:
1. because trend elongation closely and automatically between the rope strand, percentage elongation can reach 1% to new steel rope in the first half of the month of using, and it is more frequent to utilize turnbuckle to tighten up the steel rope number of times, and tension wheel adorns atop that the auto-tensioning effect is little;
2. as untimely tensioning steel rope, compression of spring power reduces, and hanging basket might take place glide fast, and at this moment drg does not have inefficacy, traction sheave can not rotate, and interior bloated the stopping that is contained in the coupler can not moved;
3. hoist ropes is many around a circle on traction sheave, and hoist ropes and folder rope sheave divide the rope sheave wearing and tearing than very fast.
The purpose of this utility model provides a kind of new elevator, it can not only keep the advantage of existing closed-rope type lifter, and can make steel rope abrasion extremely slow, adapts to the automatic elongation of steel rope, prevent effectively and deal with hanging basket safety cage out of control, reach the effect of people's goods dual-purpose.
The purpose of this utility model is achieved in that and adopts hoist ropes another kind on traction sheave to hold mode: increase contact roller at the traction sheave upside, every hoist ropes is increased a tension wheel, tension wheel can slide up and down on the base crossbeam, and every tension wheel is tightened on the base with several extension springs.The steel rope that gets off from the hanging basket pull bar enters tension wheel at first, walk around contact roller more successively, traction sheave, track adjusting wheel, walk around for the second time behind contact roller, the traction sheave upwards with pull bar on the balance iron case and link to each other, because the hoist ropes secondary is walked around traction sheave and adopted contact roller to increase cornerite, has guaranteed the required cornerite of traction transmission, owing to have only steel cable in every grooving on the traction sheave, there are not roll compacting between the steel rope and hard " folder " " branch " firmly, thereby do not have wearing and tearing.To closed-rope type lifter, pulling force on the hoist ropes is more half as large than the pulling force on the suspension strop, and is little and adopt several springs to the required elastic force of the tensioning of hoist ropes, can make tension wheel obtain bigger amount of movement, this amount of movement is 0.5 times of hoist ropes elongation, and tension effects is good.2. hanging on the prison top, the end of hanging steel rope increases the dress turnbuckle, and the other end of turnbuckle links to each other with safety latch, has increased the adjustment amount of steel rope like this.3. increase by an inner spring again in the tensioning spring of hoist ropes two ends and become cluster spring, inner spring is little, and rigidity is little, and deflection is big, when hoist ropes breaks, utilizes the big characteristics of inner spring deflection that the pull bar amount of moving up is increased and pushes hook with safety tong.Speed limit insurance when 4. on every top block, increasing flexible wire holder: in the ring groove of the garden, web side of every top block as hanging basket quick downslide out of control, two groups of rotary pendulum pavilions are housed, pendulum pavilion one end links to each other with spring, the slotted hole that the other end passes the sliding sleeve side links to each other with the sliding sleeve core, compression spring is arranged below the sliding sleeve; Eccentric wheel is sleeved on the wheel hub of top block, and eccentric medial surface has the circular concave station that equates with the ring groove cylindrical, and the five equilibrium ground auger has the several holes bigger than sliding sleeve external diameter on eccentric web, and hole wall slightly surpasses the concave station wall.On upper frame, hanging steel rope turnover top block place, fixed folder rope bar.At ordinary times, under the pulling force of spring, sliding sleeve leans against on the interior garden wall of garden ring groove with the top block rotation, in case it is out of control to hang prison, glide fast, the top block faster rotational speed, under centrifugal action, fork rotates, sliding sleeve moves the cylindrical wall rotation that leans against the garden ring groove outward, below sliding sleeve under the spring thrust, sliding sleeve puts in the eccentric areole, promotes eccentric wheel and rotates, and hanging steel rope is pressed to folder rope bar, and check top block, make to hang to supervise to become slowly at the uniform velocity to descend, the eccentric wheel of this wire holder does not have internal tooth, and simple structure is processed easily, in the folder rope process, the elongation of spring is very little, and the rotating speed that starts wire holder is not high, is lower than 2 times of normal speeds of top block.
Perfect through above-mentioned improvement, the wearing and tearing of hoist ropes are extremely slow, use half a year, finish the vertical transport task of one storey building main body surplus ten after, also do not have the fracture of wire phenomenon.Vertical tensioning hoist ropes as long as the amount of movement of tension wheel is 10 centimetres, just can adapt to the automatic elongation of steel rope 20 centimeter length; Adopt two ends of cluster spring tensioning hoist ropes, make the action of hook with safety tong more reliable; No matter whether external contractring brake lost efficacy, the too much or several hoist ropes of overload take place when breaking simultaneously to hang prison out of control, be contained in flexible wire holder on the top block and must move and hanging basket is become at the uniform velocity glide slowly or tangled by hook with safety tong under the impact conditions not having.
Further specify this reality is novel below in conjunction with drawings and Examples.
Fig. 9 is the tensioning and the winding figure of the utility model hoist ropes.
Figure 10 is the winding figure of hoist ropes when contact roller is changed into track adjusting wheel.
Figure 11 is the constructional drawing of the utility model wire holder.
Figure 12 is the C-C cutaway view of Figure 11.
Figure 13 be hang prison top go up hanging steel rope around to figure.
Figure 14 is the structural representation of hoist ropes two ends.
Fig. 1 is the structural representation of first embodiment of closed-rope type lifter.
Fig. 2 is the cross sectional representation of Fig. 1.
Figure 15 is the structural representation of second embodiment of closed-rope type lifter.
Figure 16 is the structural representation of the 3rd embodiment of closed-rope type lifter.
Figure 17 is the structural representation of the 4th embodiment of closed-rope type lifter.
Figure 18 is the structural representation of the 5th embodiment of closed-rope type lifter.
Among the figure: 39. cluster springs, 40. contact rollers, 41. tension wheels, 42. extension springs, 43. eccentric wheel, 44. folder rope bars, 45. tension wheel boxes, 46. pilot bars, 47. crossbeams, 48. sliding sleeves, 49. sliding sleeve cores, 50. swing arms, 51. extension springs, 52. compression springs, 53. steel pipes, 54. adjustable bolts, 55. outer springs, 56. inner springs.All the other marks and accompanying drawing 3, accompanying drawing 4 is identical.
In Fig. 9, the upside that contact roller (40) is placed in traction sheave (2) becomes the part of towing machine.Tension wheel (41) is contained in the tension wheel box (45), the several extension springs of following usefulness (42) of tension wheel box are tightened on the base, to obtain bigger spring amount of tension, pilot bar (46) is arranged above the tension wheel box (45), slide up and down in the hole of the crossbeam (47) of pilot bar on being welded in base (1), track adjusting wheel (3) still is installed on the entablatrance of base (1).Hoist ropes (4) gets off from the pull bar (5) on the hanging basket, enter tension wheel (41) from below, enter contact roller (40) from above, from the right side around going into traction sheave (2), lay out from the left side of traction sheave (2) and to enter track adjusting wheel (3), walk around contact roller (40) once more, traction sheave (2) upwards links to each other with pull bar (25) on the balance iron case.
In Figure 10, the wheel (40) effect become track adjusting wheel by contact roller, be installed in track adjusting wheel (3) below.When the place is narrow, track adjusting wheel (3), the core wheel of track adjusting wheel (40) and tension wheel (41) even can be positioned on the straight line.Hoist ropes (4) still enters tension wheel (41) from below, walk around track adjusting wheel (40) successively, traction sheave (2), and track adjusting wheel (3) is walked around track adjusting wheel (40) once more, and traction sheave (2) upwards links to each other with pull bar (25) on the balance iron case.
In Figure 11, Figure 12, two cover rotary swing arms (50) are housed in the ring groove of the garden, web side of every top block (13), the slotted hole that swing arm (50) one ends pass sliding sleeve (48) side links to each other with sliding sleeve core (49), the swing arm other end links to each other with spring (51), compression spring (52) is arranged below the sliding sleeve (48).Eccentric wheel (43) is sleeved on the wheel hub of top block, and there is the garden shape concave station that equates with the outer garden of bad groove of garden eccentric inboard, and the five equilibrium ground auger has several holes on eccentric web, and the aperture is slightly larger than the external diameter of sliding sleeve (48), and hole wall slightly surpasses recessed combining harmoniously.On upper frame (17), hanging steel rope (12) turnover top block place fixed folder rope bar (44).
Among Figure 13, steel pipe (53) is welded on and hangs on the prison top, hanging steel rope (12) becomes the level trend behind deflection sheave (19), after turning to through two place's steel pipes (53), end links to each other with turnbuckle (23) right-hand member of horizontal positioned, turnbuckle (23) other end links to each other with safety latch (20), and safety latch (20) passes compression spring (18).
In Figure 14, be combined into cluster spring (39) by outer spring (55) and inner spring (56), pull bar (5) passes inner spring (56), the lower end links to each other with hoist ropes (4), there is adjustable bolt (54) upper end of pull bar (5), when rubbing, relies on inner spring (56) pushing drawing rod (5) to continue to rise at hoist ropes (4), push by bolt (54) and to hit plate 9, hook with safety tong (10) is rotated.
In elevator, replace the elevator transmission with the traction transmission, can eliminate the hanging basket that can only cause and rush to summit, break to restrict and fall the basket accident with the steel cable hard draw, cost does not increase, and brings the effect of energy-saving safe.Under the occasion that can use winch to promote, all can adopt closed-rope type lifter.The same with the winding type elevator, closed-rope type lifter also has the two baskets of single frame, single frame list basket, tiltedly multiple structure style such as frame list basket and two frame list baskets.
In Fig. 1, the two basket type embodiment of first single frame shown in Figure 2, on base (1), upstream sequence ground mounting guide rail frame (11) and upper frame (17), on base (1), two towing machines are installed in the guide rail bracket (11) symmetrically, every towing machine is by electrical motor (34), and the reductor (36) that traction sheave (2) are housed on the output shaft is through coupler (33), and drg (35) is connected to form driving device.Adding the support that contact roller (40) is housed forms.Every towing machine drives a hanging basket (22) and a balance iron case (26) is done one rise and one drop campaign, hanging basket is in the operation of the guide rail bracket outside, roller on the hanging basket moves in guide rail bracket four chamfered groove steel backbones (27), the rail (28) of paying that V-shaped groove roller on the balance iron case clips in the guide rail bracket is angle steel two limb limits guiding, in guide rail bracket the inside lifting, stop dropping on the crossbeam above the base (1).
The head end of several hanging steel ropes (12) arranged side by side is fastened on the turnbuckle of steady iron case (26), walk around top block (13), (16), behind the deflection sheave (19), end is fastened on the turnbuckle (23) on hanging basket (22) top, and the turnbuckle other end links to each other with the safety latch that passes spring (18) (20); In addition with several traction steel-cables arranged side by side (4), every head end is fastened on the pull bar (5) of hanging basket (22), walk around tension wheel (41) downwards, walk around contact roller (40) successively, traction sheave (2), track adjusting wheel (3), walk around contact roller (40) once more, traction sheave (2) back makes progress, and end is fastened on the pull bar (25) of balance iron case (26), and cluster spring (39) is passed in pull bar (5) and (25).
Each root hoist ropes (4) is with a tension wheel (41) tensioning, and every tension wheel (41) is tightened on the base (1) with several extension springs (42).
Go up fixed folder rope bar (44), an eccentric wheel of suit (43) on each top block at upper frame (17).When hanging basket (22) quick downslide out of control; The top block faster rotational speed starts flexible wire holder, and eccentric wheel (43) is rotated, and hanging steel rope (12) is pressed to folder rope bar (44) and checked top block, hanging basket is become slowly at the uniform velocity descend.
In second single frame list basket type embodiment shown in Figure 15, its guide rail bracket (11) is identical with the winding type elevator, go up towing machine of installation at the base (1) of guide rail bracket (11) center, a rope drive driving hanging basket (22) is closed in employing and balance iron case (26) moves in the backbone of guide rail bracket (11) two sides, and balance iron case stops dropping on the carriage of base (1) side.
In the 3rd single frame list basket type embodiment shown in Figure 16, hanging basket (22) is at the internal operation of guide rail bracket (11), balance iron case is in the outside operation of guide rail bracket, stop dropping on the carriage of base (1) side, towing machine is contained on the base of guide rail bracket one side, the claimed structure compactness, employing changes contact roller into the type of belt drive of track adjusting wheel, track adjusting wheel (3), track adjusting wheel (40), the garden heart of tension wheel (41) can be positioned on the perpendicular line, and the distance of tension wheel core wheel and traction sheave core wheel only needs the radius sum greater than these two wheels.
In the 4th two frame list prison type embodiment shown in Figure 17, hanging basket (22) is operation in the gate-type guide rail bracket (11) that two small bores are formed, balance iron case is in the operation of the gate-type guide rail bracket outside, stop dropping on the base bracket of gate-type frame one side, towing machine is contained in the base (1) of the little guide rail bracket of a side, also can adopt the type of belt drive that contact roller is changed into track adjusting wheel.
In the 5th guide rail bracket apsacline embodiment shown in Figure 180, hanging basket or hopper (22) move on guide rail bracket (11), balance iron case (26) moves below guide rail bracket, towing machine is installed on the base (1) of guide rail bracket center, this guide rail bracket bevelled closed-rope type lifter can be used for the chute transportation of occasions such as harbour, warehouse, also can be used for the construction in pagoda shape building building site.The feeding device that also can be used for machinery and equipment.