Lift appliance
Technical field
The present invention relates to lifter winch is arranged on the lift appliance of lifting trap bottom.
Background technology
Fig. 5 represents the front elevation of lift appliance one example in the past, and Fig. 6 is the birds-eye view of presentation graphs 5 devices, and Fig. 7 is the instruction diagram that the hoist cable of Fig. 5 device is launched expression.
Among the figure, lifting trap 1 has bottom 1a, relative the 1st and the 2nd sidewall 1b each other, 1c and with the 1st and the 2nd sidewall 1b, rectangular the 3rd sidewall of 1c (rear wall) 1d.Hang cab 2 and balance weight 3 by hoist cable 4 in the lifting trap 1.Be provided with a pair of cab pulley 5,6 in the bottom of cab 2.Be provided with counterweight pulley 7 on the top of balance weight 3.Top in lifting trap 1 is provided with the 1st and the 2nd reversion pulley 8,9.
Be provided with the lifter winch 10 that makes cab 2 and balance weight 3 mutual liftings by hoist cable 4 at the bottom of lifting trap 1 1a.In vertical plane shown in Figure 6, the part of lifter winch 10 overlaps with cab 2.In addition, lifter winch 10 is configured to its core 10a along the direction extension vertical with the 1st and the 2nd sidewall 1b, 1c.
Top in lifting trap 1 is fixed with an end 4a and the other end 4b of hoist cable 4 respectively.As shown in Figure 7, hoist cable 4 is from the order successively winding of an end 4a side by cab pulley the 5,6, the 1st reversion pulley 8, lifter winch the 10, the 2nd reversion pulley 9 and counterweight pulley 7.
In addition, as shown in Figure 6, the cab threshold 12 that is provided with cab door 11a, 11b in the cab 2 and the switch of cab door 11a, 11b is led.In the upright a pair of cab guide rail of being located in the lifting trap 1 13,14 cab 2 is being led and lifting in parallel to each other.A pair of cab guide rail 13,14 be configured in vertical plane its connect straight line 15 by cab 2 center of gravity G or its near.This is in order not apply big eccentric load on cab guide rail 13,14.
Therewith in like manner, a pair of cab pulley 5,6 also be configured in vertical plane its bonded assembly pulley straight line 16, be the part of passing through cab 2 bottoms of hoist cable 4 by cab 2 center of gravity G or its near.And for avoiding the interference of cab guide rail 13,14 and cab pulley 5,6, pulley straight line 16 tilts with respect to the straight line between the guide rail 15, and the center of gravity G place of cab 2 or near it with guide rail between straight line 15 intersect.
Here, for lifter winch 10 is keeped in repair, around the lifter winch 10 the maintenance activity space must be arranged.This maintenance activity space comprises that the height of top of the maintenance area 21A of the bottom 1a that is located at lifting trap 1 is that the space of H and the height of lifter winch 10 tops are the space of h.Maintenance area 21A has sufficient width so that lifter winch 10 is carried out maintenance activity, for example is the zone from the 500 millimeters scopes in a side of lifter winch 10.In addition, for the same reason, the maintenance activity space of lifter winch 10 tops refers generally to the scope of height h=500 millimeter.In this maintenance activity space, wish not exist the implements that can become the operation obstacle.
In this lift appliance in the past, for lifter winch 10 being configured to a spool core 10a along extending with the 1st and the 2nd sidewall 1b, direction that 1c is vertical (direction parallel) with the straight line 15 between the guide rail, make cab 2 drop to below shift position and when lifter winch 10 carried out maintenance activity, maintenance area 21A system is limited by the hoist cable 4 (underslung hoist cable) by cab 2 bottoms, the size d0 of Fig. 6 is less, so can not guarantee sufficient maintenance activity space.
Though to this method that has imagination that lifter winch 10 and hoist cable were arranged in 4 minutes, owing to interfere from the interval and the threshold 12 from lifter winch 10 to the 2nd reversion pulleys 9 of hoist cable 4, so the desired location of lifter winch 10 is limited to some extent.In addition, the method that hoist cable 4 and lifter winch 10 are separated is in this case owing to be difficult to make the underslung hoist cable by near the center of gravity G and at the eccentric position place cab 2 is sling, thereby is applied with eccentric load on cab guide rail 13.
Fig. 8 represents the birds-eye view of another example of lift appliance in the past, and Fig. 9 is the instruction diagram that the hoist cable path of Fig. 8 device is launched expression.In this example, the bottom that ties up to lifting trap 1 is provided with lifter winch 17 and energy disperser 18.Be provided with reversion pulley 19 on the top of lifting trap 1, on this reversion pulley 19, be hung with hoist cable 20.And an end 20a of hoist cable 20 is connected with cab 2, and the other end 20b of hoist cable 20 then is set around on the reel 17b of lifter winch 17.
In this device, to compare with the path of the hoist cable 4 of Fig. 5, more simplify in the path of hoist cable 20.In addition, because the bottom of cab 2 does not dispose hoist cable 20, so when cab 2 being dropped to descend the shift position most and lifter winch 17 carried out maintenance activity, hoist cable 20 does not become obstruction.Yet, be provided with energy disperser 18 owing to standing at the bottom of lifting trap 1 1a, so as shown in Figure 8, even in the lift appliance of this heaving pile formula (roping), the space of maintenance area 21A and top thereof is restricted because of energy disperser 18 and energy disperser 18a, so can not guarantee sufficient maintenance activity space.
In addition, in the real public clear 62-11894 communique of Japanese Patent, disclosed a kind of lift appliance that is provided with the Machine Room in bottom and lifter winch is set in this Machine Room with the step of lifting trap adjacency.Yet in this device, because the Machine Room must be set outside the lifting trap in addition, the building utilization ratio reduces.
In addition, in the real public clear 62-11894 communique of Japanese Patent, disclosing a kind of lift appliance that in lifting trap wall, is provided with the actuating device of hauling block.Yet for hauling block is not interfered with cab, actuating device must quite approach and adopt special actuating device, thereby increases cost in this lift appliance.In addition, for the lifter winch of general type of service is set, must increase the area of lifting trap, so the building utilization ratio reduces.
The announcement of invention
The present invention is for addressing the above problem, and its purpose is to provide a kind of and can guarantees for the sufficient maintenance activity space of lifter winch and need not increase the lift appliance of lifting trap bottom area.
Lift appliance of the present invention comprises: the lifting trap with bottom, the upright in parallel to each other a pair of cab guide rail of being located in the above-mentioned lifting trap, in these guide rails, led and the cab of lifting in above-mentioned lifting trap, be arranged on a pair of cab pulley of this cab bottom, be hung on these cab pulleys and in above-mentioned lifting trap, hang the hoist cable of above-mentioned cab, and be arranged on the above-mentioned bottom of above-mentioned lifting trap and make the lifter winch of above-mentioned cab lifting by above-mentioned hoist cable, in vertical plane, the part of lifter winch overlaps with cab, connect near the center of gravity of the above-mentioned cab of straight-line pass between the guide rail of above-mentioned a pair of cab guide rail or its, the pulley straight line that connects a pair of lifting trap pulley with respect to straight line between the guide rail be inclined near the center of gravity of cab or its with guide rail between straight line intersect, it is characterized in that, in vertical plane, above-mentioned lifter winch be set to the axle core that extends along the length direction of above-mentioned lifter winch relative with straight line between the guide rail and to the equidirectional inclination of above-mentioned pulley straight line, and thus maintenance area is arranged on the above-mentioned pulley straight sides of above-mentioned lifter winch.
Lift appliance of the present invention comprises: the lifting trap with bottom, the upright in parallel to each other a pair of cab guide rail of being located in the above-mentioned lifting trap, in these guide rails, led and the cab of lifting in above-mentioned lifting trap, in above-mentioned lifting trap, hang the hoist cable of above-mentioned cab, and be arranged on the above-mentioned bottom of above-mentioned lifting trap and make the lifter winch of above-mentioned cab lifting by above-mentioned hoist cable, in vertical plane, the part of lifter winch overlaps with cab, it is characterized in that, in vertical plane, above-mentioned lifter winch is set to tilt with respect to straight line between the guide rail that connects above-mentioned a pair of cab guide rail along the axle core that the length direction of described lifter winch extends, and thus maintenance area is arranged on the side of above-mentioned lifter winch.
The accompanying drawing simple declaration
Fig. 1 is the birds-eye view of the lift appliance of expression example 1 of the present invention;
Fig. 2 is the summary side elevation of presentation graphs 1 device;
Fig. 3 is the birds-eye view of the lift appliance of expression example 2 of the present invention;
Fig. 4 is the summary side elevation of presentation graphs 3 devices;
Fig. 5 represents the front elevation of lift appliance one example in the past;
Fig. 6 is the birds-eye view of presentation graphs 5 devices;
Fig. 7 is the instruction diagram that the hoist cable path of Fig. 5 device is launched expression;
Fig. 8 represents the birds-eye view of another example of lift appliance in the past;
Fig. 9 is the instruction diagram that the hoist cable path of Fig. 8 device is launched expression.
The optimal morphology that carries out an invention
Following with reference to description of drawings best example of the present invention.
Example 1
Fig. 1 is the summary side elevation of presentation graphs 1 device for the birds-eye view of the lift appliance of expression example 1 of the present invention, Fig. 2.In addition, Fig. 2 represents to make cab to drop to the most following mobile location status.
Among the figure,, lifting trap 1 has bottom 1a, relative the 1st and the 2nd sidewall 1b each other, 1c and with the 1st and the 2nd sidewall 1b, rectangular the 3rd sidewall of 1c (rear wall) 1d.Be hung with cab 2 and balance weight 3 by hoist cable 4 in the lifting trap 1.Be provided with a pair of cab pulley 5,6 in the bottom of cab 2.Be provided with counterweight pulley 7 on the top of balance weight 3.Top in lifting trap 1 is provided with the 1st and the 2nd reversion pulley 8,9.
Be provided with the lifter winch 10 that makes cab 2 and balance weight 3 mutual liftings by hoist cable 4 at the bottom of lifting trap 1 1a.In vertical plane shown in Figure 1, the part of lifter winch 10 overlaps with cab 2.In addition, the top in lifting trap 1 is fixed with an end 4a and the other end 4b of hoist cable 4 respectively.Hoist cable 4 is from the order successively winding of an end 4a side by cab pulley the 5,6, the 1st reversion pulley 8, lifter winch the 10, the 2nd reversion pulley 9 and counterweight pulley 7.
In addition, the cab threshold 12 that in cab 2, is provided with cab door 11a, 11b and the switch of cab door 11a, 11b is led.In the upright a pair of cab guide rail of being located in the lifting trap 1 13,14 in parallel to each other, cab 2 is led and make its lifting.A pair of cab guide rail 13,14 be configured in vertical plane its connect straight line 15 by cab 2 center of gravity G or its near.This is in order not apply big eccentric load on cab guide rail 13,14.
Therewith in like manner, a pair of cab pulley 5,6 also be configured in vertical plane its bonded assembly pulley straight line 16, be the part of the bottom of passing through cab 2 of hoist cable 4 by cab 2 center of gravity G or its near.And for avoiding the interference of cab guide rail 13,14 and cab pulley 5,6, pulley straight line 16 tilts with respect to the straight line between the guide rail 15, and the center of gravity G place of cab 2 or near it with guide rail between straight line 15 intersect.
And, in vertical plane, straight line between the axle core 10a that extends along the length direction of above-mentioned lifter winch 10 and the guide rail 15 relative and to the equidirectional inclination of above-mentioned pulley straight line 16 (part of the bottom of the cab 2 by hoist cable 4).In this example 1, it is parallel with pulley straight line 16 that lifter winch is set to a core 10a.
In this lift appliance, when cab 2 drops to when descending most the shift position and lifter winch 10 being carried out maintenance activity, can guarantee the width d1 of maintenance area 22A along the length direction of lifter winch 10 and do not increase the area of 1a bottom the lifting trap, so can fully guarantee maintenance activity area for lifter winch 10.That is, can guarantee for example maintenance area 22A of 500 millimeters scopes equably at the whole length direction of lifter winch 10 from lifter winch 10 1 sides.So also can increase the distance of lifter winch 10 and cab lower device, thereby increase the maintenance activity space.
Example 2
Fig. 3 is the summary side elevation of presentation graphs 3 devices for the birds-eye view of the lift appliance of the bright example 2 of expression, Fig. 4.
In this example, be provided with lifter winch 17 and energy disperser 18 in the bottom of lifting trap 1.Be provided with reversion pulley 19 on the top of lifting trap 1, be linked with hoist cable 20 on this reversion pulley 19.And, an end 20a of rope 20 is connected with cab 2, the other end 20b winding of hoist cable 20 is on the reel 17b of lifter winch 17.
In addition, in vertical plane, it is relative and to leaving the inclination of energy disperser 18 directions lifter winch 17 to be configured between the guide rail of the axle core 17a that extends along its length direction and a pair of connection cab guide rail 13,14 straight line 15.
In this lift appliance, when cab 2 drops to when descending most the shift position and lifter winch 10 being carried out maintenance activity, can guarantee the width d1 of maintenance area 22A along the length direction of lifter winch 10 and do not increase the area of 1a bottom the lifting trap, so can fully guarantee maintenance activity area for lifter winch 10.That is, can guarantee for example maintenance area 22A of 500 millimeters scopes equably at the whole length direction of lifter winch 10 from lifter winch 10 1 sides.So also can increase the distance of lifter winch 10 and cab lower device, thereby increase the maintenance activity space.
In addition, though be illustrated for the mode of hanging in the bottom of cab 2 in above-mentioned example, the present invention also can be applicable to the mode of hanging on the top of cab 2.