CN114929610A - Counterweight block carrying auxiliary tool of elevator and counterweight block carrying method of elevator - Google Patents
Counterweight block carrying auxiliary tool of elevator and counterweight block carrying method of elevator Download PDFInfo
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- CN114929610A CN114929610A CN202080092610.2A CN202080092610A CN114929610A CN 114929610 A CN114929610 A CN 114929610A CN 202080092610 A CN202080092610 A CN 202080092610A CN 114929610 A CN114929610 A CN 114929610A
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- 238000000034 method Methods 0.000 title claims description 19
- 230000005291 magnetic effect Effects 0.000 claims abstract description 18
- 239000000725 suspension Substances 0.000 claims description 107
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 19
- 239000002184 metal Substances 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- 238000004804 winding Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
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Abstract
The invention provides a counterweight conveying auxiliary tool of an elevator, which can realize miniaturization. In an elevator counterweight carrying auxiliary device related by the invention, the elevator counterweight carrying auxiliary device comprises: a casing disposed on an upper surface of an uppermost counterweight block of a plurality of counterweight blocks stacked in a vertical direction inside a counterweight frame of an elevator; and a magnet disposed inside the housing, the magnet being configured to be capable of switching between strength and weakness of a magnetic force generated in a downward direction of the housing by an operation from outside the housing, and generating an attraction force to the weight of the uppermost layer by the magnetic force generated in the downward direction of the housing in a state where the housing is disposed on an upper surface of the weight of the uppermost layer.
Description
Technical Field
The invention relates to an elevator counterweight block conveying auxiliary tool and an elevator counterweight block conveying method.
Background
Patent document 1 discloses a counterweight conveying aid for an elevator. The pair of weight carrying auxiliary tools lift the weight of the elevator through a plurality of arms.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2019-006589
Disclosure of Invention
Problems to be solved by the invention
However, the counterweight transfer assist device described in patent document 1 holds the counterweight by a plurality of arms. Therefore, the weight transfer auxiliary tool is enlarged.
The present invention has been made to solve the above problems. The invention aims to provide a counterweight carrying auxiliary tool of an elevator and a counterweight carrying method of the elevator, which can be miniaturized.
Means for solving the problems
The elevator counterweight conveying auxiliary tool comprises: a casing disposed on an upper surface of an uppermost counterweight block of a plurality of counterweight blocks stacked in a vertical direction inside a counterweight frame of an elevator; and a magnet disposed inside the housing and configured to be capable of freely switching strength of a magnetic force generated in a lower direction of the housing by an operation from outside the housing, wherein in a state where the housing is disposed on an upper surface of the weight of the uppermost layer, an attractive force to the weight of the uppermost layer is generated by the magnetic force generated in the lower direction of the housing.
The counterweight block carrying method of the elevator comprises the following steps: a gap forming step of forming a gap between a lower surface of a counterweight of an uppermost layer and an upper surface of a counterweight next to the counterweight of the uppermost layer by lifting the uppermost layer of the plurality of counterweights stacked in a vertical direction inside a counterweight frame of an elevator by using the counterweight transfer aid; and an insertion step of inserting the support member into the gap after the gap formation step.
Effects of the invention
According to the present invention, the pair of weights of the uppermost layer is held by magnetic force. Therefore, the auxiliary device for transporting the weight can be miniaturized.
Drawings
Fig. 1 is a structural diagram of an elevator to which a counterweight conveyance aid of the elevator in embodiment 1 is applied.
Fig. 2 is a front view of the counterweight carrying auxiliary device of the elevator in embodiment 1.
Fig. 3 is a plan view of the counterweight conveying aid of the elevator according to embodiment 1.
Fig. 4 is a diagram for explaining a method of attaching a temporary suspension belt to a first belt attachment portion of a weight conveyance aid in an elevator according to embodiment 1.
Fig. 5 is a diagram for explaining a method of attaching a formal suspension belt to a connection portion of a weight conveyance aid in an elevator according to embodiment 1.
Fig. 6 is a diagram for explaining a method of attaching a main suspension belt to a connecting portion of a weight conveyance aid in an elevator according to embodiment 1.
Fig. 7 is a diagram illustrating the interior of the counterweight-carrying auxiliary device for an elevator in embodiment 1.
Fig. 8 is a diagram for explaining a temporary suspension operation of a weight by the weight transfer aid of the elevator according to embodiment 1.
Fig. 9 is a diagram for explaining a main suspension operation of the weight by the weight conveyance aid of the elevator according to embodiment 1.
Fig. 10 is a plan view of a counterweight carrying aid of an elevator according to embodiment 2.
Fig. 11 is a diagram showing a main suspension operation of a weight by the weight conveyance aid of the elevator according to embodiment 2.
Fig. 12 is a plan view of a counterweight conveying aid of an elevator according to embodiment 3.
Fig. 13 is a diagram showing a main suspension operation of the weight by the weight conveyance aid of the elevator according to embodiment 3.
Fig. 14 is a plan view of the counterweight-carrying auxiliary device of the elevator in embodiment 4.
Fig. 15 is a diagram showing a main suspension operation of a weight by the weight conveyance aid of the elevator according to embodiment 4.
Detailed Description
The mode for carrying out the invention is explained with reference to the drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals. Repetitive description of this part is appropriately simplified or omitted.
Embodiment 1.
Fig. 1 is a structural diagram of an elevator to which a counterweight-carrying aid of an elevator according to embodiment 1 is applied.
In the elevator of fig. 1, a hoistway 1 extends through each floor of a building. A plurality of landings 2 are provided at each floor of the building. Each of the landings 2 faces the hoistway 1. Each of the plurality of landings 2 includes a landing door 3.
The hoisting machine 4 is provided in an upper portion of the hoistway 1. The hoisting machine 4 is provided with a sheave 5. The deflector pulley 6 is provided at an upper portion of the hoistway 1.
A pair of car guide rails 7 are provided in the hoistway 1. The pair of car guide rails 7 extend in the vertical direction. The pair of car guide rails 7 are parallel to each other. The pair of car guide rails 7 face each other.
A pair of counterweight guide rails 8 are provided in the hoistway 1. The pair of counterweight guide rails 8 extend in the vertical direction. The pair of counterweight guide rails 8 are parallel to each other. The pair of counterweight guide rails 8 are opposed to each other.
The main ropes 9 are wound around the sheave 5 and the deflector sheave 6.
The car 10 is supported by one side of the main rope 9. The car 10 is provided so as to be able to ascend and descend along the pair of car guide rails 7 inside the hoistway 1. The car 10 includes a car door 11.
The counterweight 12 is supported on the other side of the main rope 9. The counterweight 12 is provided so as to be able to ascend and descend along the pair of counterweight guide rails 8 inside the hoistway 1. The counterweight 12 includes a counterweight frame 13 and a plurality of counterweight blocks 14.
The counter weights 14 are made of metal. The plurality of counterweight blocks have strong magnetism, respectively.
The car buffer 15 is provided at the bottom of the hoistway 1. The car buffer 15 is disposed below the car 10.
A counterweight buffer 16 is disposed at the bottom of the hoistway 1. A counterweight buffer 16 is disposed below the counterweight 12.
Next, the structure of the weight transfer aid will be described with reference to fig. 2 and 3.
Fig. 2 is a front view of a counterweight carrying aid of an elevator according to embodiment 1. Fig. 3 is a plan view of the counterweight conveying aid of the elevator according to embodiment 1.
As shown in fig. 2 and 3, the counterweight transportation assist device 17 includes a housing 18, a connecting portion 19, a handle 20, and a pair of first belt attaching portions 21.
The housing 18 is a rectangular parallelepiped member having a space therein.
The connecting portion 19 is provided on a side surface of the housing 18. For example, the connection portion 19 is a wire having annular portions at both ends. For example, the connection portion 19 is attached to the housing 18 by a bolt via an annular portion at one end.
The handle 20 is an L-shaped member. Handle 20 has a shaft portion 20a and a handle portion 20 b.
The shaft portion 20a is a rod-shaped member. The shaft portion 20a is provided on the upper surface of the housing 18 in a direction perpendicular to the upper surface of the housing 18. One end of the shaft portion 20a is provided so as to penetrate the upper surface of the housing 18.
The handle portion 20b is a rod-shaped member. The grip portion 20b is connected to the other end of the shaft portion 20a from a direction perpendicular to the shaft portion 20 a. In other words, the handle portion 20b is connected to the other end of the shaft portion 20a so as to be parallel to the upper surface of the housing 18.
The pair of first belt mounting portions 21 are each a flat plate-like member. The side surface provided with the connection portion 19 is not provided among the side surfaces of the housing 18. For example, one of the pair of first tape attaching portions 21 is provided on the right side surface of the case 18. The other of the pair of first tape attaching portions 21 is provided on the left side surface of the housing 18. For example, the pair of first tape attaching portions 21 are provided at positions symmetrical with respect to the case 18 on the right side surface of the case 18 and the left side surface of the case 18, respectively.
As shown in fig. 3, each of the pair of first tape attaching portions 21 has an opening. For example, each of the pair of first tape attaching portions 21 has a plurality of through holes as openings. For example, each of the pair of first tape attaching portions 21 has an E-shape having 2 cutout openings. In each of the pair of first tape mounting portions 21, 2 cutout openings are in contact with the side surface of the housing 18.
Next, a method of attaching the temporary suspension belt 22 to the counterweight transportation aid 17 will be described with reference to fig. 4.
Fig. 4 is a diagram for explaining a method of attaching a temporary suspension belt to a first belt attachment portion of a weight conveyance aid in an elevator according to embodiment 1.
For example, the temporary suspension belt 22 is an endless rope. For example, the temporary hanging belt 22 is a looped round sling (round sling).
The temporary hanging belt 22 is attached to the first belt attaching portion 21 in a state of penetrating 2 openings of the first belt attaching portion 21. Specifically, the temporary hanging belt 22 passes through a first through opening from above the first belt mounting portion 21 and a second through opening from below the first belt mounting portion 21. This process is performed for the first belt mounting portion 21 on each of the right and left sides of the case 18, whereby the temporary hanging belt 22 is mounted to the case 18.
For example, when the first strap attaching part 21 has an E-shape having 2 cutout openings, the temporary hanging strap 22 may be attached to the first strap attaching part 21 as follows.
Before the first strap attaching part 21 is attached to the housing 18, the temporary hanging strap 22 is inserted through the first opening from above the first strap attaching part 21. Next, the temporary hanging belt 22 is passed through the second opening from below the first belt mounting portion 21. Then, the first belt mounting portion 21 is mounted to the housing 18 by a fitting such as a bolt. This process is performed for the first belt mounting portion 21 on each of the right and left sides of the case 18, whereby the temporary hanging belt 22 is mounted to the case 18.
Next, a method of attaching the main suspension belt 23 to the weight transfer aid 17 will be described with reference to fig. 5 and 6.
Fig. 5 and 6 are diagrams for explaining a method of attaching a main suspension belt to a connecting portion of a counterweight transportation aid of an elevator according to embodiment 1.
The main suspension belt 23 is attached to the connection portion 19. For example, the main suspension belt 23 is a string-like body having an annular portion. For example, the main suspension belt 23 is a belt sling (belt sling) having a loop portion at both ends.
For example, as shown in fig. 5, the annular portion at one end of the main suspension band 23 and the annular portion of the connecting portion 19 are attached to each other in a chain-like connection. For example, as shown in fig. 6, the main suspension band 23 is attached so as to penetrate through the annular portion of the connection portion 19.
Next, the inside of the case 18 will be described with reference to fig. 7.
Fig. 7 is a diagram for explaining the inside of a housing of a counterweight conveying aid of an elevator in embodiment 1.
As shown in fig. 7, a magnet 24 is provided inside the housing 18. For example, the magnet 24 includes an upper magnet 24a and a lower magnet 24 b. For example, the upper magnet 24a and the lower magnet 24b are cylindrical permanent magnets divided into 2 poles in the radial direction.
The upper magnet 24a is disposed at an upper portion inside the case 18. The upper magnet 24a is rotatable about the center of the circle.
The lower magnet 24b is disposed at a lower portion inside the housing 18. The upper surface of the lower magnet 24b is disposed in contact with the lower surface of the upper magnet 24 a.
Although not shown, one end of the shaft portion 20a is connected to the center of the upper magnet 24 a. The central axis of the upper magnet 24a is coaxial with the shaft portion 20 a. Therefore, when the shaft portion 20a rotates, the upper magnet 24a also rotates.
For example, the upper magnet 24a is disposed such that the right side is an S pole and the left side is an N pole. The lower magnet 24b is disposed so that the right side is an N-pole and the left side is an S-pole. As a result, the S pole side of the upper magnet 24a contacts the N pole side of the lower magnet 24 b. The N-pole side of the upper magnet 24a contacts the S-pole side of the lower magnet 24 b. In this case, the S pole side of the upper magnet 24a and the N pole side of the lower magnet 24b are attracted to each other by their respective magnetic forces. The N pole side of the upper magnet 24a and the S pole side of the lower magnet 24b are attracted to each other by their respective magnetic forces.
When the upper magnet 24a is rotated by 180 degrees, the right side of the upper magnet 24a becomes the N pole and the left side becomes the S pole. As a result, the N pole side of the upper magnet 24a contacts the N pole side of the lower magnet 24 b. The S pole side of the upper magnet 24a contacts the S pole side of the lower magnet 24 b. In this case, the upper magnet 24a and the lower magnet 24b have the same polarity on the left and right. As a result, the magnet 24 generates magnetic forces upward and downward, respectively.
In the following description, a state in which the magnet 24 generates a magnetic force downward is referred to as an ON state, and a state in which the magnet 24 does not generate a magnetic force downward is referred to as an OFF state.
Next, the operation of conveying the weight 14 will be described with reference to fig. 8 and 9.
Fig. 8 is a diagram for explaining a temporary suspension operation of the weight by the weight transfer aid of the elevator according to embodiment 1. Fig. 9 is a diagram for explaining a main suspension operation of a weight by the weight transfer aid of the elevator according to embodiment 1.
The temporary suspension work is a work of inserting the support member 26 into a gap formed between the pair of weights 14 at the uppermost layer and the next pair of weights 14 at the uppermost layer.
As shown in fig. 8, the plurality of counterweight blocks 14 are guided by a pair of grooves, not shown, formed in the counterweight frame 13. The counterweight blocks 14 are stacked in the vertical direction between the counterweight frames 13. The upper end of the hoist rope 25 is connected to an electric or manual hoisting device fixed above the hoistway 1. The lower end of the hoist rope 25 is hung down to the upper portion of the plurality of counter weights 14. A hook is provided at the lower part of the lifting rope 25. The hoist rope 25 is, for example, a chain or a wire.
For example, the support 26 is a rectangular member. For example, the support member 26 is a wood chip such as a rafter or a metal sheet. The support member 26 is provided with a drop-preventing wire 27.
The anti-drop thread 27 is a string-like body having hook portions at both ends. A hook portion at one end of the drop-preventing cord 27 is attached to the support member 26.
In the temporary suspension work, the counterweight transfer assist tool 17 is attached to either the left or right side of the center portion of the counterweight 14 at the uppermost layer.
For example, the weight transfer aid 17 is attached to the uppermost pair of weights 14 by a method described below.
At the start of the operation, the magnet 24 of the weight transfer aid 17 is turned OFF. In the counterweight transport support 17, the case 18 is disposed on the upper surface of the uppermost counterweight 14. In the uppermost counter weight 14, the housing 18 is disposed at either of the right and left sides of the center portion of the weight 14. An elevator structure in which the hook portion at the other end of the fall-preventing cord 27 of the support member 26 is attached to the inside of the hoistway 1, for example.
Subsequently, the magnet 24 of the weight conveyance aid 17 is turned ON. As a result, the uppermost counter weight 14 is attracted to the counter weight conveyance aid 17. Then, the temporary suspension belt 22 is attached to the hook portion of the lifting rope 25.
Next, the uppermost counter weight 14 is slightly lifted by the lifting device via the temporary suspension belt 22 and the lifting rope 25. At this time, the uppermost counter weight 14 is obliquely lifted so that one end side thereof is positioned further upward.
Thereafter, the support 26 is inserted into a gap formed between the pair of weights 14 of the uppermost layer and the next pair of weights 14 of the uppermost layer. Thereafter, the crane ends the operation of lifting the uppermost counter weight 14, and the uppermost counter weight 14 is lowered from a slightly lifted position. The lower surface of the uppermost counter-weight 14 is supported by a support 26. As a result, the gap is maintained by the support 26. Then, the temporary suspension belt 22 is detached from the hook portion of the lifting rope 25.
In the operation of conveying the weight 14, the temporary suspension operation is followed by the actual suspension operation. The main suspension work is a work for removing the counterweight 14 on the uppermost layer from the counterweight frame 13.
As shown in fig. 9, the main suspension belt 23 is attached to the annular portion of the connecting portion 19 by the method described above. Then, one end of the main suspension belt 23 is passed through a gap between the uppermost counter weight 14 and the next uppermost counter weight 14. Then, one end of the primary suspension band 23 passed through the gap is passed through the loop portion of the other end of the primary suspension band 23. At this time, the main suspension belt 23 is wound around the outer periphery of the uppermost counter weight 14 in the direction perpendicular to the longitudinal direction. Then, the loop portion at one end of the primary suspension belt 23 is attached to the hook portion of the hanging rope 25 in a state of penetrating the loop portion at the other end of the primary suspension belt 23.
Then, the uppermost counter weight 14 is lifted by the hoist rope 25. At this time, the uppermost counter weight 14 is obliquely lifted so that one end side thereof is positioned further upward. After that, the uppermost counterweight 14 is detached from the counterweight frame 13.
These steps are performed sequentially for a plurality of counterweight blocks 14. As a result, all the counterweight blocks 14 are detached from the counterweight frame 13.
According to embodiment 1 described above, the counterweight transport assist device 17 holds the counterweight 14 by the attraction force generated by the magnet 24. Therefore, the weight conveyance aid 17 can be downsized.
At this time, the strength of the magnetic force of the magnet 24 is easily switched by an external operation. Therefore, the adsorption of the weight 14 by the weight transfer aid 17 and the release of the adsorption can be easily performed.
The magnet 24 is formed by stacking 2 cylindrical permanent magnets divided into 2 poles in the radial direction. Therefore, the magnetic force of the magnet 24 can be easily controlled.
The weight transfer aid 17 is attached to the hoist rope 25. Therefore, the weight 14 can be easily lifted upward.
The weight transfer aid 17 is attached to the hoist rope 25 via a round suspension cable serving as the temporary suspension belt 22. Therefore, the counter weight 14 can be lifted up with a simple structure using the universal product.
The weight transfer aid 17 may be attached to the hoist rope 25 via a belt sling serving as the temporary suspension belt 22. In this case, the counterweight 14 can be lifted with a simple structure using the toilet article.
The temporary hanging belt 22 may be an endless belt sling. The temporary hanging belt 22 may be a string-like body having an annular portion. The temporary suspension belt 22 may be a round sling having loop parts at both ends. The temporary hanging belt 22 may be a belt sling having loop portions at both ends.
In the actual suspension work, the actual suspension belt 23 is attached in a state of being firmly wound along the outer periphery of the weight 14 at the uppermost layer in the longitudinal direction. Therefore, the weight 14 can be prevented from falling off from the primary suspension belt 23 during the primary suspension operation.
The main suspension belt 23 is a belt sling or a roundsling. Therefore, the counterweight 14 can be lifted with a simple structure using the toilet article.
The main suspension band 23 may be a round sling having loop portions at both ends. The main suspension belt 23 may be an annular string-like body. The main suspension belt 23 may be an endless round sling. The main suspension belt 23 may be an endless belt sling.
The weight transfer aid 17 is provided with a connection portion 19. By connecting the case 18 sucked to the counter weight 14 and the main suspension belt wound around the counter weight 14 by the connection part 19, the lifted counter weight 14 can be prevented from falling off the main suspension belt.
In addition, the weight 14 may have a metal with magnetism only in a part thereof. In this case, the metal portion having the ferromagnetic body may be located on the upper surface of the counter weight 14.
The magnet 24 may be a permanent magnet of 1 cylinder type divided into 2 poles in the radial direction. In this case, the magnet 24 may be provided inside the case 18 such that the central axis thereof is parallel to the upper surface of the case 18. One of the shaft portions 20a penetrating the side surface of the housing 18 is connected to the center of the magnet 24. In this case, when the shaft portion 20a rotates, the connected magnet 24 also rotates at the same time. The strength of the magnetic force around the housing 18 changes by the rotation of the magnet 24.
The magnet 24 may be an electromagnet that generates magnetic forces upward and downward. When the coil of the electromagnet is energized, magnetic force is generated upward and downward. When the energization of the coil of the electromagnet is stopped, the magnetic force disappears.
The magnet 24 of the weight transfer aid 17 may be turned ON after the main suspension belt 23 is attached to the hook portion of the lifting rope 25.
Further, the temporary suspension belt 22 and the lifting rope 25 may not be attached to the weight transfer aid 17. In this case, the counterweight 14 can be transported by winding the hoist rope 25 around the counterweight 14 in a state where the counterweight 14 is lifted by the counterweight transport support 17.
The counterweight transportation assist device 17 according to embodiment 1 may be applied to an elevator in a machine room provided directly above the hoistway 1, such as the hoisting machine 4.
Fig. 10 is a plan view of the counterweight conveying aid of the elevator according to embodiment 2. The same or corresponding portions as those in embodiment 1 are denoted by the same reference numerals. The description of this part is omitted.
In embodiment 2, the weight transfer aid 17a does not include the connecting portion 19, but instead includes the second belt attachment portion 28.
As shown in fig. 10, the second belt mounting portion 28 is a flat plate-like member. The second belt mounting portion 28 has an opening. For example, the second tape mounting portion 28 has a C-shape with a cut-out opening. The second belt mounting portion 28 is provided on one of the side surfaces of the housing 18 on which the pair of first belt mounting portions 21 are not provided. In the second tape mounting portion 28, the cutout opening portion contacts the side surface of the case 18.
The main suspension belt 23 is inserted through the opening of the second belt mounting portion 28.
Next, the operation of conveying the weight 14 in embodiment 2 will be described with reference to fig. 11.
Fig. 11 is a diagram showing a main suspension operation of a weight by the weight transfer aid of the elevator according to embodiment 2.
As shown in fig. 11, in the primary suspension work, the primary suspension belt 23 is inserted into the opening of the second belt mounting portion 28. As a result, the case 18 and the main suspension belt 23 are coupled via the second belt attachment portion 28. The actual suspension belt 23 is wound around the outer periphery of the uppermost counterweight 14 in the direction perpendicular to the longitudinal direction in a state of being connected to the housing 18.
According to the embodiment 2 described above, the weight conveyance aid 17a is coupled to the main suspension belt 23 via the second belt attachment portion 28. Therefore, the weight 14 can be prevented from falling off from the primary suspension belt 23 during the primary suspension work.
Fig. 12 is a plan view of a counterweight conveying aid of an elevator according to embodiment 3. The same or corresponding portions as those in embodiment 1 are denoted by the same reference numerals. The description of this portion is omitted.
In embodiment 3, the counterweight transport auxiliary 17b of the elevator does not include the connection portion 19.
Next, the operation of conveying the weight 14 in embodiment 3 will be described with reference to fig. 13.
Fig. 13 is a diagram showing a main suspension operation of the weight by the weight conveyance aid of the elevator according to embodiment 3.
As shown in fig. 13, in the temporary suspension work, the temporary suspension belt 22 is attached to the first belt attachment portion 21 on the right side of the housing 18 and the first belt attachment portion 21 on the left side of the housing 18, respectively. As a result, the temporary hanging belt 22 and the housing 18 form one annular body. After the temporary suspension work, the temporary suspension belt 22 is detached from the hook portion of the suspension rope 25.
In the primary suspension work, the primary suspension belt 23 is wound around the outer periphery of the uppermost counter weight 14 in the direction perpendicular to the longitudinal direction in a state of being coupled to the housing 18. Thereafter, the main suspension belt 23 is inserted into the annular body formed by the temporary suspension belt 22 and the housing 18. As a result, the case 18 is coupled to the main suspension belt 23.
According to the embodiment 3 described above, the weight conveyance aid 17b is connected to the main suspension belt 23 via the temporary suspension belt 22. Therefore, the weight 14 can be prevented from falling off from the primary suspension belt 23 during the primary suspension operation.
Embodiment 4
Fig. 14 is a plan view of a counterweight carrying aid of an elevator according to embodiment 4. The same or corresponding portions as those in embodiment 1 are denoted by the same reference numerals. The description of this portion is omitted.
In embodiment 4, the counterweight transportation assist device 17c is provided with a pair of hooks 29 without the connecting portion 19. For example, the pair of hooks 29 are each a ring-shaped body that can be switched between an open state and a closed state. For example, the pair of hooks 29 are each a metal carabiner made of stainless steel or the like.
As shown in fig. 14, the pair of hook bodies 29 are attached to the pair of first tape attaching portions 21, respectively. For example, one of the pair of hooks 29 is inserted into and attached to an opening of one of the first tape attaching parts 21. For example, one of the pair of hooks 29 is inserted into 2 openings of one of the first tape attaching parts 21. For example, the other of the pair of hooks 29 is inserted through the opening of the other first tape mounting portion 21. For example, the other of the pair of hooks 29 is inserted into and attached to the other of the pair of first tape attaching portions 21 so as to penetrate the 2 openings.
One of the pair of hooks 29 is attached to the loop portion at one end of the main suspension belt 23. The other of the pair of hook bodies 29 is attached to the loop portion at the other end of the main suspension band 23. In the temporary suspension work according to embodiment 4, the main suspension belt 23 is used instead of the temporary suspension belt 22. After the temporary suspension work, the main suspension belt 23 is detached from the hook portion of the suspension rope 25. After the temporary suspension work, the main suspension belts 23 are detached from the pair of hooks 29, respectively.
Next, the operation of conveying the weight 14 in embodiment 4 will be described with reference to fig. 15.
Fig. 15 is a diagram showing a main suspension operation of a weight by the weight conveyance aid of the elevator according to embodiment 4.
As shown in fig. 15, in the main suspension work, the main suspension belt 23 is wound around the weight 14 at the uppermost layer. The main suspension belt 23 is wound around the center of the long side of the counterweight 14 at a position closer to the center than the position where the counterweight transport auxiliary 17c is attached. In other words, the auxiliary weight transfer tool 17c is attached to a position farther from the center of the long side of the counterweight 14 than the position where the main suspension belt 23 is wound.
According to embodiment 4 described above, the primary suspension belt 23 is attached to the first belt attaching portion 21 via the pair of hook bodies 29. Therefore, the temporary hanging work can be performed without using the temporary hanging belt 22.
The auxiliary weight transfer tool 17c is attached to a position farther from the center of the long side of the counterweight 14 than the position where the main suspension belt 23 is wound. Therefore, the weight 14 can be prevented from falling off from the primary suspension belt 23 during the primary suspension work.
Industrial applicability
As described above, the counterweight-carrying auxiliary device for an elevator according to the present invention can be used for an elevator.
Description of the reference symbols
1: hoistway, 2: landing, 3: landing door, 4: traction machine, 5: rope pulley, 6: diverting pulley, 7: car guide rail, 8: counterweight guide rails, 9: main rope, 10: car, 11: car door, 12: counterweight, 13: counterweight frame, 14: for the weight, 15: car buffer, 16: counterweight buffer, 17: auxiliary weight transfer tool, 17 a: auxiliary weight transfer tool, 17 b: auxiliary weight transfer tool, 17 c: auxiliary weight conveying tool, 18: a housing, 19: connecting part, 20: handle, 20 a: shaft portion, 20 b: handle portion, 21: first belt attachment section, 22: temporary suspension belt, 23: main suspension band, 24: magnet, 24 a: upper magnet, 24 b: lower magnet, 25: lifting rope, 26: support, 27: drop-preventing thread, 28: second belt mounting portion, 29: a hook body.
Claims (13)
1. An elevator counterweight conveying auxiliary tool is provided with:
a casing disposed on an upper surface of an uppermost counterweight block of a plurality of counterweight blocks stacked in a vertical direction inside a counterweight frame of an elevator; and
and a magnet disposed inside the housing and configured to be capable of freely switching strength of a magnetic force generated in a lower direction of the housing by an operation from outside the housing, wherein in a state where the housing is disposed on an upper surface of the weight of the uppermost layer, an attractive force to the weight of the uppermost layer is generated by the magnetic force generated in the lower direction of the housing.
2. The elevator counterweight handling aid of claim 1, wherein,
the magnet is provided with:
a cylindrical upper magnet which rotates around the center of a circle and is divided into 2 poles in the radial direction; and
and a cylindrical lower magnet disposed in contact with a lower surface of the upper magnet, and divided into 2 poles in a radial direction.
3. A counterweight handling aid for an elevator according to claim 1 or 2,
the auxiliary device for transporting the weight of the elevator is provided with a belt mounting part which is connected with the shell and is connected with a temporary suspension belt mounted on a lifting rope, and the upper end of the lifting rope is fixed above the hoistway of the elevator.
4. A counterweight handling aid for an elevator according to claim 3,
the belt mounting portion is connected to a round sling serving as the temporary suspension belt.
5. A counterweight handling aid for an elevator according to claim 3 or 4,
the counterweight-carrying auxiliary device for an elevator is provided with a connecting part which is connected with the housing and connected with a formal suspension belt mounted on the lifting rope.
6. Counterweight handling aid for an elevator according to claim 3 or 4, wherein,
the counterweight transport auxiliary device of the elevator is provided with a second belt installation part which is connected with the shell and is connected with a formal suspension belt installed on the lifting rope.
7. The elevator counterweight handling aid of claim 5, wherein,
the connecting portion is connected to a belt sling serving as the main suspension belt.
8. The elevator counterweight handling aid of claim 6, wherein,
the second belt mounting portion is connected to a belt sling serving as the main suspension belt.
9. A counterweight handling aid for an elevator according to claim 3,
the counterweight-carrying auxiliary tool for an elevator is provided with a hook body connected to the belt mounting part and connected to the temporary suspension belt.
10. The counterweight handling aid of an elevator according to claim 9, wherein,
the hook body is switchable between an open state and a closed state, and is capable of being coupled to a main suspension belt.
11. A counterweight handling aid for an elevator according to any of claims 1 to 10,
the auxiliary device for transporting the counterweight bodies of the elevator is provided with a support member which is inserted between the lower surface of the counterweight body at the uppermost layer and the upper surface of the counterweight body next to the uppermost layer so as to support the lower surface of the counterweight body at the uppermost layer.
12. A method of counterweight-carrying for an elevator, comprising:
a gap forming step of forming a gap between a lower surface of a counterweight of an elevator at an uppermost layer and an upper surface of a counterweight next to the counterweight at the uppermost layer by lifting the counterweight at an uppermost layer of the plurality of counterweights stacked in a vertical direction inside a counterweight frame of the elevator by using the counterweight transfer aid according to claim 1; and
and an insertion step of inserting a support into the gap after the gap formation step.
13. The elevator counterweight conveying method of claim 12, wherein,
the counterweight carrying method of the elevator comprises the following steps:
a belt mounting step of, after the insertion step, inserting a primary suspension belt into the gap and mounting the primary suspension belt to the uppermost counterweight; and
and a counterweight block detaching step of lifting the counterweight block on the uppermost layer after the belt mounting step and detaching the counterweight block from the counterweight frame.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2020/006755 WO2021166151A1 (en) | 2020-02-20 | 2020-02-20 | Transfer jig for elevator weight blocks and transfer method for elevator weight blocks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114929610A true CN114929610A (en) | 2022-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080092610.2A Pending CN114929610A (en) | 2020-02-20 | 2020-02-20 | Counterweight block carrying auxiliary tool of elevator and counterweight block carrying method of elevator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6947315B1 (en) |
| CN (1) | CN114929610A (en) |
| WO (1) | WO2021166151A1 (en) |
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| JPS5290864U (en) * | 1975-12-27 | 1977-07-07 | ||
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| JP2006036465A (en) * | 2004-07-27 | 2006-02-09 | Sumitomo Heavy Ind Ltd | Lifting magnet, its control circuit, and lifting magnet device |
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| CN105222732A (en) * | 2015-10-21 | 2016-01-06 | 湖北工业大学 | The electromagnetic ultrasonic thickness measuring probe that a kind of rotation controlled magnetic force can break |
| WO2020031285A1 (en) * | 2018-08-08 | 2020-02-13 | 三菱電機ビルテクノサービス株式会社 | Elevator weight block and method of moving this |
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2020
- 2020-02-20 WO PCT/JP2020/006755 patent/WO2021166151A1/en active Application Filing
- 2020-02-20 JP JP2020566861A patent/JP6947315B1/en active Active
- 2020-02-20 CN CN202080092610.2A patent/CN114929610A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5290864U (en) * | 1975-12-27 | 1977-07-07 | ||
| CN1657394A (en) * | 2004-02-19 | 2005-08-24 | Hiro电梯希伦可特+龙西克有限公司 | Counterweight for a vertical elevator |
| JP2006036465A (en) * | 2004-07-27 | 2006-02-09 | Sumitomo Heavy Ind Ltd | Lifting magnet, its control circuit, and lifting magnet device |
| JP2006160490A (en) * | 2004-12-09 | 2006-06-22 | Masao Hiruta | Hanging device using belt sling |
| CN203699637U (en) * | 2013-12-16 | 2014-07-09 | 天津神封科技发展有限公司 | Vertical switch type permanent magnetic chuck |
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| WO2020031285A1 (en) * | 2018-08-08 | 2020-02-13 | 三菱電機ビルテクノサービス株式会社 | Elevator weight block and method of moving this |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021166151A1 (en) | 2021-08-26 |
| JP6947315B1 (en) | 2021-10-13 |
| JPWO2021166151A1 (en) | 2021-08-26 |
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