KR101223860B1 - Lifting device for elevator, elevator car frame, and lifting method for elevator - Google Patents

Abstract

The lifting device 100 includes a guide rail 8 installed from the lower portion 81 of the hoistway 5 to the top of the hoistway 5a, and a guide shoe 9 that engages with the guiderail 8, thereby providing a guide rail ( 8) A car frame 7 used as a platform on which an elevator frame 7 of an elevator capable of lifting and lowering as a guide, on which a heavy object 1 lifted up to the vicinity of the top 5a of the hoistway 5 is loaded. And a lifter 3 that lifts the car frame 7 on which the heavy object 1 is loaded to the top 5a of the hoistway with the guide rails 8 as a guide. Thereby, the trouble of jig disassembly can be skipped.

Description

Lifting device of elevator and elevator frame of elevator and lifting method of elevator {LIFTING DEVICE FOR ELEVATOR, ELEVATOR CAR FRAME, AND LIFTING METHOD FOR ELEVATOR}

The present invention relates to a lifting device for an elevator for lifting a heavy object in a hoistway of an elevator, a car frame for an elevator, and a lifting method for an elevator.

When installing the equipment of the elevator, the size of the hoistway needs to be determined in consideration of the space required for carrying out the mounting work in the installation process, as well as simply accommodating the equipment after installation. In particular, it is natural to secure a carry-in path for carrying an elevator device into a hoistway and lifting the weight to a predetermined height, but it is necessary to secure a space for handling and lifting margin in the hoistway. Here, "heap-weight margin" means the height of a heavy lifter, but more accurately means an installation space including the height of a heavy lifter.

For example, when lifting a device using a chain block, the weight of a device of 500 kg to 1000 kg is lifted by a chain block of 400 to 500 mm by manual operation and 700 to 800 mm by electric power. ~ 2 are used. In the case of directly hanging the device, in order to prevent the device from falling during lifting, the suspension unit is usually provided above the center position of the lifting device. The suspension portion can also be very close to the center of gravity in the planar direction. As a result, the device to be lifted is lifted in a stable posture. At the top of the height where the device to be lifted is finally mounted as a product, it is necessary to secure "space required for lifting" (both margins). Therefore, the minimum top position (required ceiling height) of the hoistway needs to be considered in view of the "space required for lifting" and the "necessary overhead dimension" determined from the lift (jump) of the car and the balance weight. have. Hereinafter, the dimension from the top floor bottom to the top of a hoistway is called "overhead dimension (OH)" (it may be described simply as "OH").

(Calculation of OH ₁ (elevator car boost))

It is a figure of the prior art example explaining calculation of OH at the time of pushing up a car. Referring to Figure 22, the description will be the overhead dimension (OH ₁₎ of from when pushed to the car. The structure of FIG. 22 is demonstrated easily. 22 shows an elevator provided in the hoistway 5. The case where the car 4 is located in the uppermost floor is shown. The car 4 and the counterweight 15 (sometimes referred to as a 'weight') are lifted by the winding machine M winding the wire 18. The overhead dimension OH ₁ is the distance between the top floor bottom 20 and the hoist top 5a. This OH ₁ is demonstrated in detail below. At the lower part of the hoistway 5, a weight estimating shock absorber 16 and a car side shock absorber 17 are provided. The estimated shock absorber 16 and the car shock absorber 17 are provided with coil springs 16a and 17a. In addition, using a coil spring is an example, The weight shock absorber 16 and the car shock absorber 17 may cushion the balance weight 15 and the car 4 by hydraulic or other means. For example, in Japan, an overhead dimension (hereinafter referred to as OH ₁ (elevator car pushing)) when pushing up the car 4 is calculated by the following expression (1a). In addition, the meaning of the symbol of (Formula 1a) is as follows.

OH ₁ (lift elevator car) = CH + CRB + BST + KJP + C (Equation 1a)

CH: Dimensions from bottom to top of car.

CRB: The runby amount on the weight side (the vertical distance from the counterweight at the time of stopping the elevator car to the bottom of the weight buffer 16) (the top of the coil spring 16a).

BST: Stroke of the estimated shock absorber 16 (deformation amount of the coil spring 16a).

KJP: The jump amount (overrun amount due to inertia) of the car 4.

C: The gap from the TOP (top of the elevator car 4) to the top of the hoistway 5a of the car 4 at the time of jumping of the car 4, without driving on the car.

In addition, the "elevator car overrun amount H" of FIG.

H = CRB + BST + KJP

to be.

24 is a diagram illustrating a relationship between OH ₁ and CH, H, and C in FIGS. 22 and 23. H ₄ and H ₅ are used in the description below.

(Output of OH ₁ (push up))

It is a figure explaining the calculation of OH at the time of pushing up a weight. The overhead dimension OH ₁ (hereinafter referred to as OH ₁ (push up)) at the time of weight pushing up is demonstrated with reference to FIG. When the counterweight 15 is pushed up, the same calculation as (Equation 1a) is performed. In the case of pushing up the counterweight 15, according to FIG. 23, OH ₁ (push up) becomes the following (formula 1b).

OH ₁ (push up) = CH + CRB + BST + OJP + C (Equation 1b)

In equation (1b), the run-by amount CRB and the shock absorber stroke BST are on the car side, and the jump amount OJP represents the amount of jump on the weight side.

In addition, CH is the distance from the uppermost floor surface 20 to the uppermost part of the counterweight 15.

24 is a diagram illustrating a relationship between OH ₁ and CH, H, and C in FIGS. 22 and 23. H ₄ and H ₅ are used in the description below.

(If the machine is located on the elevator projected surface: both car push up and weight push up)

It is also the case wherein the device (e.g. hoisting machine) on the car projection plane, considering the lifting margin (H ₂₎ of the above, the required overhead dimension (OH ₂₎ the (formula 2a) below. The following OH ₂ (with equipment) is a dimension when a device with a _double margin (H ₂ ) is present on the head of the car 4.

25 is a diagram schematically illustrating the following (formula 2a).

If you push the car,

OH ₂ (with instrument) = OH ₁ (elevator car pushed up) + H ₁ + H ₂ (Eq. 2a)

.

In addition, in the case of weight pushing, it becomes as following (formula 2b).

OH ₂ (with instrument / weight) = OH ₁ (push up) + H ₁ + H ₂ (Eq. 2b)

. In addition, the meaning of a symbol is as follows.

H ₁ : Height of the instrument.

H ₂ : Positive margin.

In addition, OH ₃ is used in the description below.

(When there is no device on the elevator projection surface)

It is a figure explaining the case where there is no apparatus on a car projection surface. When there is no device on the car projection surface, when the mounting height of the device is H ₃ (distance from the top floor bottom surface 20 to the bottom of the device), the OH ₀ dimension of the following calculation formula (Equation 3) is

OH ₀ > OH ₁ (with elevator car pushed up),

Also

OH ₀ > OH ₁ (push up)

In the case of, OH ₀ is the required overhead dimension.

OH ₀ = H ₃ + H ₁ + H ₂ (Equation 3)

Also, H ₀ is used in the following description.

Since the late 1990s, machine-room-less elevators (MRLs) have spread rapidly both in Japan and around the world, and the system in which all elevator equipment is installed in the hoistway has become the mainstream. . In addition, the reduction of the size of the hoistway (planar dimension, overhead dimension, pit depth) also proceeds, and the required hoistway size should be designed with the arrangement of the device in consideration of the installation as well as the acceptance of the device.

In reducing the overhead dimension, it is also possible to consider lifting a device such as a hoist by using a dedicated lifting platform as a jig (for example, Patent Document 1). However, in the case of using a dedicated lifting platform, assembling or disassembly of the lifting platform is required, which leads to high installation time and cost.

[Patent Document 1] Japanese Patent Laid-Open No. 2000-34072

An object of the present invention is to provide a lifting device and a lifting method that do not require an expansion of the size of the hoistway, and do not involve an increase in installation time and high cost when lifting elevator equipment such as a hoisting machine.

Lifting device of the elevator of the present invention,

In the lifting device of an elevator for lifting a heavy object to the vicinity of the top of the hoistway of the elevator,

A guide rail installed from the lower portion of the hoistway to the upper end portion;

By providing a guide shoe coupled with the guide rail, an elevator car frame of the elevator capable of elevating the guide rail as a guide, and an elevator car frame used as a platform on which the heavy goods lifted to the vicinity of the top of the hoistway are loaded. ,

And a lifting crane which lifts the car frame on which the heavy material is loaded up to the top portion with the guide rail as a guide.

The guide rail,

The intermediate part between the vicinity of the top part and the vicinity of the lower part is not fixed by the rail bracket.

The lifter is,

A linear ship body whose one end is attached to the car frame;

At the same time having a main body disposed on the top portion to wind up the car frame by winding the linear body,

The main body includes:

When the car frame is lifted up to the top by winding the linear body, at least a portion of the car is arranged to be pushed down from above the car frame,

The car frame,

An automobile frame side end mounting portion to which the one end of the linear body is mounted is provided.

The car frame,

A mounting member on which the heavy material is loaded is provided on the upper portion,

The weight is,

It is loaded on the mounting member and, at the same time, when the main body of the lifter is lifted up to the vicinity of the top by winding the linear body, it is loaded at a position that does not interfere with the main body of the lifter.

The car frame side end mounting portion,

It is characterized by being disposed at a position above the center of gravity determined in the case where the heavy object and the car frame which are mounted on the placing member are viewed as one rigid body.

The lifter is,

A linear linear body attached to a fixed part of which one end is fixed to the top part,

A main body mounted on the car frame such that at least a portion of the car frame is pushed downward from the upper part of the car frame, and the car frame is lifted up to the top by winding the ship body;

The car frame,

An automobile frame side main body mounting portion, to which the main body of the lift truck is mounted, is provided.

The car frame,

It is provided with a mounting member on which the heavy material is loaded,

The weight is,

It is loaded on the mounting member and characterized in that it is loaded at a position that does not interfere with the lifter.

The car frame side body mounting portion,

It is characterized in that it is disposed at a position above the center of gravity determined in the case where the heavy object and the car frame loaded on the placing member are viewed as one rigid body.

The guide shoe,

It is characterized by including a magnetic material that attracts the guide rail by magnetic force.

The car frame of the elevator of the present invention,

An elevator car frame used as a platform for lifting heavy goods to near the top of an elevator's hoistway, wherein the main body is disposed at the top of the hoistway, and one end of the ship body is mounted on the hoisting object so that the ship body It is characterized by comprising a car frame side end mounting portion to which the one end of the linear body of the heavy lifter, which lifts the lifting object to the top end by winding up, is mounted.

The car frame of the elevator of the present invention,

An elevator car frame used as a platform for lifting heavy goods to near the top of an elevator's hoistway, wherein one end of the ship body is connected to the top of the hoistway, and a main body is mounted on the lifting object to form the ship body. It is characterized by comprising a car frame side body mounting portion for mounting the main body of the lifting machine to lift the lifting object to the top portion by winding.

Lifting method of the elevator of the present invention,

In the lifting method of the elevator to lift the heavy object to the vicinity of the top of the hoistway of the elevator,

An elevator car frame of an elevator capable of lifting up and down along the guide rail by providing a guide shoe that is combined with a guide rail installed from the lower part of the hoistway to the top end, and as a platform on which the heavy goods lifted to the vicinity of the top end of the hoistway are loaded. It is characterized in that the car frame used is lifted by a lifter to the top portion with the guide rail in the state in which the heavy material is loaded.

Industrial Applicability According to the present invention, when lifting elevator equipment such as a hoisting machine, it is possible to provide a lifting device and a lifting method that do not require expansion of the size of the hoistway, and do not involve an increase in installation time and high cost. .

BRIEF DESCRIPTION OF THE DRAWINGS The figure which shows the problem of hanging the object of the weight of Embodiment 1 directly.
2 is a view for explaining a lifting apparatus 100 according to the first embodiment.
FIG. 3 is a diagram showing double focus of Embodiment 1. FIG.
FIG. 4 is a diagram showing the end of double loading of Embodiment 1. FIG.
5 is a view showing the start of lifting by the lifting apparatus 100 of the first embodiment.
Fig. 6 is a diagram showing a middle way of lifting by the lifting device 100 of the first embodiment.
FIG. 7 is a view showing the finishing of lifting by the lifting device 100 of the first embodiment. FIG.
8 is a perspective view of the lifting device 100 by the lifting device 100 according to the first embodiment.
9 is a perspective view of the end of lifting by the lifting device 100 of the first embodiment.
FIG. 10 is a view showing a case where the configuration of the car frame 7 and the arrangement of the lifters 3 of the first embodiment are changed with respect to FIG. 8. FIG.
FIG. 11 is a view showing a case where the lifting weight in FIG. 10 of the first embodiment is completed; FIG.
12 is a view showing a mounting configuration of the chain 3a of the first embodiment.
FIG. 13 is a view for explaining a problem of the suspension position of the first embodiment. FIG.
14 illustrates a problem of a suspension position of the first embodiment.
FIG. 15 is a diagram for explaining a problem of suspension position according to the first embodiment; FIG.
FIG. 16 is a diagram illustrating an effect of the magnetic body of Embodiment 1. FIG.
The figure explaining the mounting position of the magnetic body of Embodiment 1. FIG.
FIG. 18: is a figure explaining the mounting position of the heavy-duty crane main body 30 of Embodiment 2. FIG.
FIG. 19 is a diagram illustrating a mounting position of the heavy lifter main body 30 of the second embodiment. FIG.
20 is a perspective view illustrating a mounting position of the heavy lifter main body 30 according to the second embodiment.
FIG. 21 is a perspective view illustrating a mounting position of the heavy lifter main body 30 according to the second embodiment. FIG.
22 shows a prior art.
23 shows a prior art.
24 is a view showing a dimensional relationship of the prior art.
25 is a view showing a dimensional relationship of the prior art;
Fig. 26 is a diagram showing a dimensional relationship of the prior art;

BEST MODE FOR CARRYING OUT THE INVENTION [

Embodiment 1

(1.Overview of lifting device 100)

Embodiment 1 demonstrates the elevator lifting device for lifting heavy goods in the hoistway of the elevator. 1 is a view for explaining a problem in the case of directly lifting the weight 1 of the object to be lifted. FIG. 2: is a figure explaining the structure of the lifting apparatus 100 of Embodiment 1. FIG. 2 shows after completion of lifting.

As shown in FIG. 1, when lifting the heavy weight 1 (for example, a hoist), the heavy lifting machine 3 (for example, winch) is attached to the ceiling (highway 5a of the hoistway) of the hoistway 5. When temporarily attached and the heavy weight 1 was suspended, it was not able to hang by the height (weight margin H ₂ ) of the heavy lifter 3 itself. For this reason, in some cases it is lifting margin (H ₂₎ as long as, that of the elevator shaft size increases. Embodiment 1 describes the lifting device 100 which does not take the lifting margin H _{2 as} a factor in determining the size of the hoistway. As described above, "heap margin (H ₂ )" means the installation space including the height of the lift, but precisely the lift.

As shown in FIG. 2, the lifting device 100 includes a guide rail 8, a car frame 7, and a lifting machine 3. The heavy lifter 3 is composed of a heavy lifter main body 30 and a chain 3a. Examples of the heavy lifting machine 3 include a chain block, a winch, and the like. In the case of a winch, a wire is used instead of the chain 3a. The characteristics of the lifting device 100 are mainly the following (1) to (3).

(1) As shown in FIG. 2, guide rails 8 are provided on both sides of the car frame 7, respectively. The guide rail 8 is fixed to the rail bracket 12 at the lower portion 81 and the upper portion 83 of the hoistway 5. The lower part 81 is near the lowest floor (feet), and the upper part 83 is near the uppermost floor. The intermediate portion 82 between the lower portion 81 and the upper portion 83 is not fixed to the rail bracket 12. This assumes a method of lifting the heavy object 1 such as a hoist using the lifting apparatus 100 and fixing the intermediate portion 82 with the rail bracket (the method without the scaffolding) by using the lifted hoist. Because. In addition, the car frame 7 is used as a lifting platform on which the heavy material 1 is loaded. For this reason, it is not necessary to use a dedicated jig when lifting the weight 1 and there is no trouble of disassembly.

(2) When the heavy lifting machine main body 30 lifts the car frame 7 to the top of the hoistway 5a, at least a portion thereof is arranged to be pushed downward from the upper part of the car frame 71. As a result, as shown in FIG. 2, the weight 1 can be suspended by the amount of the margin H ₂ as well, and the size of the hoistway can be reduced.

(3) When the suspension point 2 which hangs the car frame 7 is lower than the uppermost part of the car frame 7, and the heavy object 1 and the car frame 7 are seen as one rigid body, The paper is provided above the car frame 7 above the center position 4b of the coalescing center. As shown in FIG. 2, the suspension point 2 is above the center position 4b by the dimension L. FIG. That is, since the position of the suspension point 2 in the car frame 7 is higher than the center position 4b of the center of coalescence of the heavy object 1 and the car frame 7 by the dimension L, both the main body ( 30) is stable to lift the weight (1). As shown in FIG. 2, the suspension point 2 is provided at a position where the weight margin H ₂ does not affect the weight of the weight 1 when the weight 1 is lifted to the final lifting position. .

(4) In this way, the lifting device 100 uses the car frame 7 as a lifting fixture for placing the heavy material 1 as shown in (1) to (3), and the guide rail 8 is used as a guide. And the lifting margin H ₂ when the suspension point 2 is lifted above the center position 4b of the coalescing center, and the suspension point 2 is lifted to the final lifting position. It is in the point which arrange | positions in the position which does not affect the quantity of this heavy substance 1.

(2.Relationship between OH and heavy weight)

3 and 4 are diagrams for explaining the overhead dimension (OH). The overhead dimension OH will be described in more detail with reference to FIGS. 3 and 4. 3 and 4 show a case in which the lift margin H ₂ becomes a factor of OH when the car frame 7 is used for the lift platform.

3 is a diagram illustrating double focus.

4 is a view showing the end of the lifting time. As shown in FIG. 3, the suspension point 2 is formed in the uppermost part of the car frame 7. As shown in FIG. For this reason, as shown in FIG. 4 showing the end of the lifting, the lifting margin H ₂ becomes a factor of OH. That is as shown in Fig. 4, the weights (1) a maximum lifting can increase the amount of mid-body 30, lifting margin (H ₂₎ of a height (H ₀₎ (above subtracted from the hoistway top portion (5a) that can Using a literal expression, H ₀ = H ₁ + H ₃ ) (see FIG. 26).

H ₁ : height of the instrument (heavy weight (1)).

H ₃ : Distance from the top floor bottom surface 20 to the bottom surface of the apparatus (heavy weight 1).

Therefore, in the case of Figure 3, the minimum overhead dimension (OH ₀ ) required from the point of installation,

OH ₀ = H ₀ + H ₂ (Equation 4)

.

On the other hand, when the car 4 ascends to the highest position (the same is true when the weight is pushed up, the description of the weight pushing up is omitted), for example, the counterweight 15 is attached to the weight buffer 16. When the collision occurs and the car 4 jumps, the distance in the vertical direction between the highest arrival point and the top floor bottom surface 20 is set to H ₄ (see FIG. 24). If there is no other hoistway device on the projected surface of the car 4, the dimension obtained by adding the safety distance H ₅ between the top of the car and the top of the hoistway when pushing up the H ₄ is the push of the car 4. This is the minimum overhead dimension (OH ₁ ) required to be rounded up.

That is, as shown in FIG.

OH ₁ = H ₄ + H ₅ (Equation 5)

Where H ₄ is

H ₄ = CH + CRB + BST + KJP (Equation 6)

CH… Height of car

CRB… Additional run-by volume

BST… Weight buffer stroke

KJP… Car jump

If the overhead dimension is set to OH ₁ (elevator car push up) (or OH ₁ (weight push up)), the required overhead dimension is the smallest. In the lifting device 100 of the first embodiment, the suspension point 2 is such that when the weight 1 is lifted to the final lifting position, the lifting margin H ₂ does not affect the lifting of the weight 1. Since it is formed at the position, the _double- sided margin H ₂ does not become an element for calculating the overhead dimension.

That is, in the lifting device 100,

OH ₁ ≥ OH ₀ (Equation 7)

. Alternatively, even in an elevator system in which the device must be placed on the projection surface of the car 4, the required overhead dimension OH _{3 in} that case is

OH ₃ = OH ₁ + H ₁ (Equation 8)

. As such, the _double margin H ₂ is not a factor for calculating the overhead dimension.

(3. Configuration and operation of lifting device)

5-12, the structure and operation | movement of the lifting apparatus 100 of Embodiment 1 are demonstrated concretely.

5 is a view showing the start of the lifting of the weight 1 by the lifting device 100.

6 is a view showing the middle of the lifting by the lifting device 100.

FIG. 7 is a view showing the lifting of the heavy material 1 by the lifting device 100.

FIG. 8 is a perspective view showing the middle of the lifting by the lifting apparatus 100 as a perspective view, and corresponds to FIG. 6.

9 is a perspective view showing the end of lifting by the lifting apparatus 100 as a perspective view, and corresponds to FIG.

FIG. 10 is a diagram showing a case in which the configuration of the car frame 7 and the arrangement of the lift trucks 3 are changed with respect to FIG. 8, corresponding to FIG. 8.

FIG. 11 is a diagram illustrating a case where the lifting of FIG. 10 ends.

12 is a view showing the mounting configuration of the chain 3a.

As shown to FIG. 5 or FIG. 8 etc., it is as follows.

(1) heavy position:

The heavy object 1 which is a heavy object is loaded on the mounting member 72 of the upper part of the car frame 7.

(2) Location of lifter:

The heavy duty main body 30 is mounted on the hoistway top 5a. The heavy duty main body 30 is directly mounted on the building side of the hoistway top 5a, or suspended through the installed double beam 6. 5 shows a case where the double beam 6 is used.

(3) Suspension Location:

As shown to Fig.12 (a), the chain 3a which has the hook 33 in the front end is lowered from the heavy lifter main body 30, and the car frame 7 is suspended by the hook 33. As shown to FIG. The heavy lifting body 30 lifts the car frame 7 by winding the chain 3a.

(4) Positional relationship between lifter (3) and car frame (7):

In this case, as shown in FIG. 7, the location (suspension point 2) which hangs the car frame 7 with the chain 3a is higher than the center position 4b of the coalescence center, and the heavy weight 1 ) Is finally the position where the lifting margin H ₂ of the lifting machine 3 can be secured. That is, the suspension point 2 is above the center position 4b of the coalescing center, and when the weight 1 is lifted to the final lifting position, the weight margin H ₂ affects the weight of the weight 1. It is formed at a position not given. In addition, when the heavy lifting body 30 of the heavy lifting machine 3 lifts the car frame 7 to the top of the hoistway 5a by winding the chain 3a, it does not interfere with the car frame 7. Instead, at least a portion of the car frame 7 is arranged to be pushed downward from the upper portion of the car frame 7. These (1)-(4) are mentioned later in more detail.

(At the start of lifting)

With reference to FIG. 5, FIG. 8, the starting time of both is demonstrated.

<Rail>

Two guide rails 8 are provided on the left and right sides of the car frame 7 from the lower portion 81 of the hoistway 5 toward the upper portion 83. As described with reference to FIG. 2, the guide rail 8 is not fixed to the intermediate portion 82 by the rail bracket 12.

<Elevator car frame>

As shown in FIG. 8, the cage | basket | car frame 7 is comprised from the cage | basket | car bottom 7a, the two cage | pillar vertical column 7b, and the cage | basket | car upper frame 7c. The car frame 7 has one guide shoe 9 in each of the upper and lower portions of the car vertical column 7b. The car frame 7 elevates the hoistway by engaging the guide shoe 9 with the guide rail 8. The car top frame 7c is mounted on the top of two car columns 7b. The car upper frame 7c has the mounting member 72 which mounts the heavy material 1. As shown in FIG. In addition, when the mounting member 72 is not provided in the car frame 7, the mounting member 72 may be attached to the upper part of the car frame 7. As shown in FIGS. 9 and 11 to be described later, the heavy object 1 is loaded on the mounting member 72 so as not to interfere with the heavy lifter main body 30 when suspended to the top.

<Suspension position>

As shown in FIG. 8, the car frame 7 carries a suspension tool 2a (an example of elevator frame side end mounting portions) which hangs the hook 33 of the chain 3a shown in FIG. It has a vertical column 7b. The suspension tool 2a is fixed to the car vertical column 7b by a holding tool 2b such as a bolt. Or instead of the suspension tool 2a, as shown to Fig.12 (a), the eye bolt 21 is fixed to the car vertical column 7b with the nut 22, and the chain 3a is carried out. It is good also as a mounting part (an example of elevator frame side edge part mounting part) of the hook 33 of this. Alternatively, as shown in FIG. 12B, the bracket 23 having a hole formed in the L-shaped plate may be a mounting portion (an example of an elevator car side end mounting portion). As shown in FIG. 5, the mounting portion (suspension point 2) of the hook 33 of the chain 3a in the car frame 7 includes the heavy object 1 and the car frame loaded on the mounting member 72. It is arrange | positioned at the position higher than the center position 4b of the coalescing center determined when seeing (7) as one rigid body. In other words, the suspension point 2 of the car frame 7 is above the center position 4b by the dimension L. As a result, the heavy lifting body 30 can suspend the heavy object 1 stably. 5 shows the center position 4a of the car frame 7 alone. The suspension point 2 is also measured from the top of the elevator frame 7 where the weight margin H ₂ does not affect the weight of the weight 1 when the weight 1 is lifted to the final lifting position. In the lower position by M).

<Double heavy duty>

In Embodiment 1, two heavy lifters 3 are used, but this is an example. The number of lifters 3 is not limited.

(During bilateral)

Next, with reference to FIGS. 6 and 8, a description will be given of the way in which the heavy lifter body 30 hangs the car frame 7 on which the heavy object 1 is loaded. 6 shows an intermediate portion 82 of the guide rail 8. Thus, the guide rail 8 is not fixed to the rail bracket 12. The car frame 7 on which the heavy object 1 is loaded is suspended by using the suspension point 2 as an action point of force. As the suspension point 2 is above the center position 4b by the dimension L as mentioned above, the heavy object 1 is stably hung up. In both cases, the car frame 7 doubles the guide rail 8 as a guide while the guide shoe 9 engages with the guide rail 8. Moreover, in both processes, a moment arises around the suspension point 2 from the positional relationship between the suspension point 2 and the center. F ₁ in Fig. 6 show the pressing force in the horizontal direction based on the generated moment (guide shoe (9) a force pressing the guide rail 8). This pressing force F1 is mentioned later in description of FIG.

(When finished)

Next, with reference to FIG. 7, FIG. 9, the completion time of both ends is demonstrated. The suspension point 2 is formed at a position where the weight margin H ₂ does not affect the weight of the weight 1 when the weight 1 is lifted to the final lifting position. In addition, when the heavy-duty crane main body 30 winds up the chain 3a and hangs the car frame 7 to the top part 5a of the hoistway, at least one part of the upper part 71 of the car frame 7 is carried out. It is arrange | positioned so that it may be pushed in from down rather than the elevator car upper frame 7c. For example, as shown in FIG. 9, the heavy-duty crane main body 30 is arrange | positioned in the position which does not interfere with the car frame 7 of the state lifted to the uppermost. As a result, when the car frame 7 is lifted up to the top, at least a part of the lift truck main body 30 is plunged downward from the upper portion 71 (elevator car upper frame 7c). As a result, the _double margin H ₂ is irrelevant to the calculation of the overhead dimension OH. 11 is a view showing a case in which the configuration of the car frame 7 and the arrangement of the lifters 3 are changed with respect to FIG. 8, but in the case of FIG. 11, at least a part of the lifter main body 30 is the upper portion 71. ), It is pushed downward from (elevator car upper frame 7c).

(4.suspension position)

The lifting apparatus 100 uses the car frame 7 which is this installation as a lifting platform, and loads the heavy goods 1 in the mounting member 72 of the upper part of the car frame 7. As shown in FIG. In this case, the suspension point 2 is arrange | positioned above the center position 4b of the center of coalescence at the time of coalescence of the heavy object 1 carried by the mounting member 72, and the car frame 7. As shown in FIG. Thus, the suspension point 2 is arrange | positioned above the center position 4b of the coalescing center determined when the heavy object 1 and the car frame 7 which were mounted on the mounting member were regarded as one rigid body. For this reason, the fall of the weight 1 can be prevented. Moreover, since the moment which arises around the suspension point 2 at the time of double weight can be made small by this, in the intermediate part 82 in which the guide rail 8 is not fixed, by the above-mentioned moment, the guide rail 8 is carried out. ), the pressing force (F ₁₎ in the horizontal direction can be applied to smaller than the pressing force (F ₂₎ to be described later (FIG. _{14) (F 1 <F 2} ). For this reason, the guide shoe 9 can prevent the derailing from the guide rail 8.

Next, the problem when the car frame 7 is not useful as a lifting platform is demonstrated. The lifting device 100 is useful for the car frame 7 as a lifting platform, but to lift the heavy object 1 without the car frame 7 being useful,

(1) A dedicated platform is obtained in which the above-described effects (without margin H ₂ as an element of the overhead dimension) can be obtained in the same manner.

or

(2) The weight 1 has a height greater than or equal to the margin of weight H ₂ , and the lower part of the weight 1 is suspended (without using a platform, the weight 1 is directly suspended).

There are only two of them.

First, the problem with the former "(1) dedicated platform" is demonstrated using FIGS. 13-15.

It is a figure which shows the start of the double delivery when the dedicated platform is used.

It is a figure which shows the middle way in the case of using a dedicated platform.

It is a figure which shows the completion | finish of double loading when the dedicated platform is used. For example, as shown in Figs. 13 to 15, the former "(1) dedicated platform" requires a lifting platform as an exclusive jig at the time of installation, and also requires the assembling and disassembly of the lifting platform after lifting. This increases the installation time. Typically, a dedicated platform is not that big (not heavy). In addition, the position of the suspension point 2 is used to allow the heavy lifter 3 to sneak into the interior of the dedicated platform 11 at the end of lifting (FIG. 15), such as when the car frame 7 is used as the platform. It is necessary to form below the margin (H ₂ ) from the uppermost part of the dedicated platform 11. For this reason, in the case where the dedicated platform 11 on which the heavy object 1 is loaded is suspended by two points in the heavy lifting machine 3, the central position of the coalescence of the heavy object 1 and the dedicated platform 11 rather than the suspension point 2 ( 11a) may increase. 13 shows the case. When the dedicated platform 11 is lifted from the state of FIG. 13, the pressing force F ₂ for pressing the guide rail 8 is generated by the moment generated around the suspension point 2 (FIG. 14). When the position below the coalescing center position 11a is used as the suspension point, the weight becomes unstable, and the generated pressing force F ₂ becomes larger than the pressing force F ₁ shown in FIG. 6 (F ₁ <F _2). ). For this reason, the guide rail 8 is because there is no intermediate section 82 is fixed to a rail bracket 12, the risk of this falling heavy object (1) by the pressing force (F ₂₎ is increased.

On the other hand, the latter "(2) direct hanging" imposes a constraint condition (height of the weight 1 above the weight margin H ₂ of the heavy lifting machine 3) to the height of the weight 1. In addition, a suspension point is formed below the center position 1a of the heavy material 1 to lift the weight. For this reason, for example, in the case of heavy lifting with a two-point suspension, when there is no central position 1a of the heavy material 1 on a straight line connecting two suspension points of the two-point suspension due to the limitation of the device arrangement or the like, There is a possibility that the heavy object 1 is turned (rotated). In addition, as a countermeasure in this case, although the fall of the heavy material 1 may be prevented using a guide means, when using the guide means exclusively for lifting, assembling and disassembly work for lifting occurs, installation time is required. do. Here, the "guide means" means, for example, the means for attaching the guide shoe to the heavy object 1 when the width of the heavy object 1 is about the interval between two guide rails 8. Moreover, when the width | variety of the weight object 1 does not satisfy | fill the space | interval of two guide rails 8, the means which mounts a guide shoe through a predetermined attachment is also considered. Thus, when the guide rail 8 which is this installation product is useful, correspondence is divided according to the installation method.

(For scaffolding)

For example, if the guide rails 8 are erected first and the guide rails 8 are respectively fixed by the rail brackets 12 at predetermined positions, as in the scaffolding method, the center position 1a of the heavy object 1 In the case of hanging from below, the horizontal load applied to the guide rail 8 through the guide shoe is supported by the rail bracket 12 even if the moment that the heavy material 1 tries to fall (rotate) occurs. do. For this reason, conduction of the weight object 1 does not occur.

(For no-scaffolding)

However, as in the "footless construction method", the guide rail 8 stands, but the middle of the guide rail 8 is before the rail bracket 12 is mounted, and when the load is applied in the horizontal direction, the guide rail 8 is In a situation where it is displaced to some extent, if the horizontal load is applied to the guide rail 8 through the guide shoe, the guide object 8 may be displaced, causing the heavy object 1 to be suspended directly to fall. In this way, the case where the dedicated platform 11 is used and the case where the hanging is suspended are suspended below the center position, so that there is a high risk of the falling of the weight 1. In this respect, in the lifting device 100 of the first embodiment, as described above, the suspension point 2 is determined when the heavy object 1 and the car frame 7 loaded on the mounting member are viewed as one rigid body. The paper is disposed above the center position 4b of the coalescence center. For this reason, the intermediate | middle part 82 can prevent the fall of the weight object 1, even before the rail bracket 12 is attached.

(5.When guide shoe is equipped with magnetic material)

16 and 17 are diagrams for explaining the case where the guide shoe 9 includes the magnetic body 10. FIG. 16: shows the case where the moment generate | occur | produced in the car frame 7 which loaded the heavy material 1. As shown in FIG. F ₁ in Fig. 16 shows the pressing force pressing the guide shoe (9), the guide rail 8 by the generation of moments. F ₃ represents a force for pulling the guide rail 8 by the magnetic body 10 mounted near the guide shoe 9 or the guide shoe 9. FIG. 17: is a figure which shows the guide shoe 9 provided with the magnetic body 10. As shown in FIG. FIG. 17 shows a case where the magnetic body 10 is attached to the inner surface with respect to the surface where the guide shoe 9 is in contact with the guide rail 8.

When the lifting stroke is increased and the length of the intermediate portion 82 where the guide rail 8 is not fixed by the rail bracket 12 becomes longer, the possibility of causing the rail is increased even if the above-mentioned moment is reduced. What is necessary is just to be able to hold | maintain the guide rail 8 mechanically in order to prevent a trailing | railing. However, the guide rail 8 is constructed by stacking a long object (rail as a component constituting the guide rail 8) of a predetermined length. For this reason, it can be seen that the connecting part of the upper and lower guide rails 8 is a node microscopically. For this reason, when a horizontal force acts on the guide rail 8, the guide rail 8 whole will be displaced by making into a ship (center) the place which received the load. When the lifting stroke is lengthened, the distance between two points supporting the entire guide rail 8 up and down becomes longer than the case where the lifting stroke is short even if the magnitude of the horizontal force acting is the same. For this reason, the displacement amount of the belly part (center part) to which a horizontal force acts becomes large. When this displacement amount becomes larger than the relation margin between the guide shoe 9 and the guide rail 8, the guide shoe 9 is separated from the guide rail 8 and consequently leads to a tarail.

Therefore, as shown in FIG. 17, the magnetic body 10 is arrange | positioned in the vicinity of the guide shoe 9 or the guide shoe 9. As shown in FIG. From this, since the guide rail 8 is attracted to the magnetic body 10 by F ₃ , the guide shoe 9 does not fall from the guide rail 8, and the lifting and lowering of the guide shoe 9 is always possible along the guide rail 8.

Embodiment 2 Fig.

In Embodiment 1, the heavy-duty crane main body 30 was provided in the hoistway top part 5a. On the other hand, Embodiment 2 demonstrates the case where the heavy-duty crane main body 30 is provided in the car frame 7.

FIG. 18: is a figure which shows the case where the heavy-duty crane main body 30 is provided in the hoistway top part 5a (Embodiment 1). On the other hand, FIG. 19 is a figure which shows the case where the heavy-duty crane main body 30 is attached to the car frame 7. As shown in FIG. 20 and 21 are perspective views when the heavy lifter body 30 is attached to the car frame 7. FIG. 20 corresponds to FIG. 9 and FIG. 21 corresponds to FIG. As shown in FIG. 20 or FIG. 21, the heavy-duty crane main body 30 is attached to the car vertical column 7b of the car frame 7. That is, in FIG. 20 or FIG. 21, the heavy lifting body 30 is provided with the chain 35a whose end is a hook (not shown). This hook is caught by the suspension tool 2a (an example of the elevator frame side main body attaching portion). On the other hand, the chain 3a (an example of a ship body) extends toward the top part at the upper part (top part side) of both heavy-body main bodies 30, and the chain 3a is attached to the top part as shown in FIG. . The heavy truck main body 30 lifts the car frame 7 by winding the chain 3a. Moreover, as shown in FIG. 19, you may hang the hook 24 provided in the heavy-duty crane main body 30 to the suspension tool 2a, without passing through the chain 35a. Or you may mount the heavy-duty crane main body 30 directly to the car vertical column 7b.

When the heavy-duty crane main body 30 is attached to the car frame 7, it is attached, for example in the state at the end of the heavy lifting of Embodiment 1. As shown in FIG. That is, the heavy lifting body 30 is above the center position 4b of the coalescing center, and when the heavy weight 1 is lifted to the final lifting position, the weight margin H ₂ affects the weight of the heavy weight 1. It is mounted in a position that does not give. More specifically, the heavy duty main body 30 is attached to the car frame such that at least a portion thereof is pushed downward from the upper portion 71 (the elevator car frame 7c) of the car frame 7. As a result, even when the heavy lifter main body 30 is mounted on the car frame 7 side, the lift margin H ₂ does not become an element of the overhead dimension OH.

The lifting device 100 of the above embodiment lifted the heavy material 1 to the mounting member of the upper part of the car frame 7, but may lift the heavy material 1 to the car bottom 7a.

Although the lifting apparatus 100 was demonstrated in the above embodiment, it is also possible to grasp the lifting apparatus 100 as a lifting method. That is, by providing a guide shoe that combines the lifting device 100 with the guide rail installed from the lower part of the hoistway to the top part, the car frame of the elevator can be lifted along the guide rail, which is lifted up to the vicinity of the top part of the hoistway. The car frame used as a platform on which the heavy material is loaded may be regarded as a lifting method of an elevator that lifts by a heavy lifting machine to the top portion with the guide rail as a guide while the heavy material is loaded.

In the above embodiment, in the elevator which arrange | positions an apparatus near the top part of a hoistway, the lifting device which installs the car frame of an elevator and the floor of a car as a platform at the time of lifting was demonstrated.

In the above embodiment, the lifting device which has a magnetic body in the guide shoe and a magnetic body sucks a guide rail at the time of carrying out was demonstrated.

In the above embodiment, in the case where the car frame and the car floor are the lifting platforms, the suspension unit is provided below the top of the platform and above the center position of the entire platform on which the heavy and heavy objects are loaded, and the platform to the top of the hoistway. In this case, we have described a lifting device in which the lifting device is located on the platform.

1 weight, 1a center of gravity (1), 2a suspension tool, 2 suspension points, 2b retainer, 3 lifters, 3a chain, 4 car, 4a car frame (4) center of gravity alone, 4b (elevator Center frame, 5 lifts, 5a lift top, 6 double beams, 7 car frames, 7a car bottom, 7b car vertical column, 7c car upper frame, 8 guide rails, 9 guide shoes , 10 magnetic material, 11 dedicated platform, 11a dedicated platform (11) + center of mass (1), 12 rail bracket, 13 emergency stop 15 counterweight, 16a, 17a coil spring, 18 wire, 20 top floor, 21 eye bolts , 22 nuts, 23 brackets, 24 hooks, 30 lift body, 33 hooks, 35a chain, 31 one end, near 51 top, 71 car frame upper, 72 mounting member, 81 lower, 82 middle, 83 upper , 100 lifters.

Claims (12)

In the lifting device of an elevator for lifting a heavy object to the vicinity of the top of the hoistway of the elevator,
A guide rail installed from the lower portion of the hoistway to the upper end portion;
An elevator car frame of an elevator capable of elevating the guide rail as a guide by providing a guide shoe coupled with the guide rail, the car frame being used as a platform on which the heavy material lifted to the vicinity of the top of the hoistway is loaded;
And a lifter for lifting the car frame on which the heavy material is loaded to the top portion with the guide rail as a guide. The method according to claim 1,
The guide rails
The lifting device of an elevator, characterized in that the middle between the vicinity of the top portion and the vicinity of the lower portion is not fixed by a rail bracket. The method according to claim 2,
The lifter is,
A linear ship body whose one end is attached to the car frame;
At the same time having a main body disposed on the top portion to wind up the car frame by winding the linear body,
The main body includes:
When the car frame is lifted up to the top by winding the linear body, at least a portion of the car is arranged to be pushed down from above the car frame,
The car frame,
An elevator lift apparatus comprising an end portion mounting portion of a car frame on which one end of the linear body is mounted. The method according to claim 3,
The car frame,
A mounting member on which the heavy material is loaded is provided on the upper portion,
The weight is,
And an elevator which is loaded on the mounting member and is loaded at a position which does not interfere with the main body of the heavy lifter when the main body of the heavy lifter is lifted up to the vicinity of the top portion by winding the linear body. Lifting device. The method of claim 4,
The car frame side end mounting portion,
An elevator lifting apparatus, characterized in that disposed at a position above the center of gravity determined when the heavy object and the car frame that are placed on the placing member are viewed as one rigid body. The method according to claim 2,
The lifter is,
A linear linear body attached to a fixed part of which one end is fixed to the top part,
A main body mounted on the car frame such that at least a portion of the car frame is pushed downward from the upper part of the car frame, and the car frame is lifted up to the top by winding the ship body;
The car frame,
An elevator lifting apparatus having a car frame side body mounting portion to which the main body of the lifting crane is mounted. The method of claim 6,
The car frame,
It is provided with a mounting member on which the heavy material is loaded,
The weight is,
Lifting device of the elevator, characterized in that loaded on the mounting member, at the same time do not interfere with the lifter. The method of claim 7,
The car frame side body mounting portion,
An elevator lifting apparatus, characterized in that disposed at a position above the center position determined when the heavy object loaded on the placing member and the car frame are regarded as one rigid body. The method according to any one of claims 2 to 8,
The guide shoe,
A lifting device for an elevator, comprising: a magnetic material that attracts the guide rail by magnetic force. An elevator car frame used as a platform for lifting heavy goods to near the top of an elevator's hoistway, wherein the main body is disposed at the top of the hoistway, and one end of the ship body is mounted on the hoisting object so that the ship body An elevator car frame side end mounting portion, on which one end of the linear body of a lifting crane that lifts the lifting object to the top end by winding up the vehicle, is provided. An elevator car frame used as a platform for lifting heavy goods to near the top of an elevator's hoistway, wherein one end of the ship body is connected to the top of the hoistway, and a main body is mounted on the lifting object to form the ship body. An elevator car frame side body mounting portion for mounting the main body of a heavy lifter that lifts the lifting target to the top end by winding up a vehicle. In the lifting method of the elevator to lift the heavy object to the vicinity of the top of the hoistway of the elevator,
An elevator car frame of an elevator capable of elevating according to the guide rail by providing a guide shoe which is combined with a guide rail installed from the lower part of the hoistway to the top end, and as a platform on which the heavy goods lifted up to the vicinity of the top end of the hoistway are loaded. The lifting method of the elevator, characterized in that the car is used to lift the guide rail to the top portion with the guide rail in the state in which the heavy material is loaded.

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