WO2002079067A1 - Method for installing hoist - Google Patents

Abstract

A method for installing a hoist comprising a step of erecting guide rails (5a, 5b) in an elevator shaft (1), a step of fixing guide members (74a, 74b, 75a, 75b) holding a fixing frame (73) slidably on the guide rails (5a, 5b) to the fixing frame (73), a step of lifting a hoist (6) while sliding the fixing frame (73) in the longitudinal direction of the guide rails (5a, 5b) after the fixing step, a step of securing a beam (72) and bases (71a, 71b) for supporting the vertical load on the hoist (6) and the fixing frame (73) to the guide rails (5a, 5b), and a step of installing the fixing frame (73) and the hoist (6) on the beam (72).

Description

 Description Hoisting machine installation method Technical field

 The present invention relates to a method of installing a hoist for installing a hoist at a predetermined height from the bottom of a hoistway. Shisui technology

 As a machine room-less elevator in which the hoisting machine is installed at a predetermined height from the bottom of the hoistway, the Japanese Utility Model Gazette No. 63-1199579 and Japanese Patent Publication No. 7 _ 10 04 3 4 Some are shown in the official gazette. In this elevator apparatus, a hoist is arranged between a car and a hoistway wall at the top of the hoistway. Since this elevator system does not require a machine room separately from the hoistway, it is advantageous in that it can save building space.

 However, in order to install the hoisting machine at a predetermined height from the bottom of the hoistway, it is necessary to lift the hoisting machine. I got it. For example, the work of fixing the hoist in a hoisted state was unstable, and it was not easy to adjust the position and secure the installation accuracy. Disclosure of the invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide an installation method that can easily install a hoist at a predetermined height from the bottom of a hoistway. The method for installing a hoist according to the present invention includes: an erecting step of erecting a first guide rail and a second guide rail in a hoistway; Attaching a guide member to the attachment member for holding the attachment member slidably with respect to the first guide rail and the second guide rail; and attaching a hoist to the attachment member. A lifting step of lifting the hoist while sliding the mounting member in the longitudinal direction of the first guide rail and the second guide rail after the mounting step in the state; After the lifting step, a fixing step of fixing a supporting member for supporting a vertical load of the hoist and the mounting member to the first guide rail and the second guide rail; and the fixing step. And a setting step of setting the mounting member and the hoist on the support member.

 The method for installing a hoist according to the present invention includes: an erecting step of erecting a first guide rail and a second guide rail in a hoistway; and after the erecting step, the hoisting machine is connected to the first guide rail. An attaching step of attaching a guide member that slidably holds the guide rail and the second guide rail to the hoist; and after the attaching step, the hoist is connected to the first guide rail and the first guide rail. A lifting step of lifting the hoist while sliding in the longitudinal direction of the second guide rail, and after the lifting step, the first guide rail and the second guide rail The method includes a fixing step of fixing a support member for supporting a vertical load of the hoist, and an installation step of installing the hoist on the support member after the fixing step.

 The lifting step includes a step of attaching a lifting jig to the hoisting machine or the mounting member, and lifting the lifting jig as a lifting point.

Further, in the lifting step, as the lifting jig, a protruding portion protruding beyond the first guide rail from the hoisting machine or the mounting member; and A lifting jig having a protruding portion protruding beyond the second guide rail; It is lifted as a point.

 Still further, the lifting step includes: a first lifting step of lifting the hoist or the mounting member as a hanging point; and after the first lifting step, the lifting machine or the mounting member. The lifting jig having a projecting portion projecting beyond the first guide rail from the first guide rail and a projecting portion projecting beyond the second guide rail from the hoisting machine or the mounting member from the hoisting machine or the hoisting machine. A second lifting step of attaching to the mounting member and lifting with the protruding portion as a hanging point. BRIEF DESCRIPTION OF THE FIGURES

 FIG. 1 is an overall configuration diagram of an elevator apparatus to which the present invention is applied.

 FIG. 2 is an enlarged view of the mounting mechanism 7 to which the present invention is applied.

 FIG. 3 is a drawing showing the structure of the guide member. (A) is a diagram showing the structure of the upper guide member 74a, and is a cross-sectional view in the direction A in FIG. (B) is a diagram showing the structure of the lower guide member 75a, and is a cross-sectional view in the B direction in FIG.

Fig. 4 is a flow chart showing the procedure of the installation work of the hoisting machine 6. _c Fig. 5 is an upper guide member 74a, 74b and a lower guide member 75a, 75b. It is a figure which shows the working state in the process of attaching.

 FIG. 6 is a diagram showing an operation state in a first step of hoisting the hoist 6.

 FIG. 7 is a view showing a working state in a second step of hoisting the hoist 6.

FIG. 8 is a diagram showing a state in which the hoisting machine 6 is positioned at the top in the hoistway. BEST MODE FOR CARRYING OUT THE INVENTION

 Next, examples of the present invention will be described as follows.

Embodiment 1

 First, an elevator apparatus to which the method of installing a hoist according to the present invention is applied will be described with reference to FIG.

 In Fig. 1, 1 is a hoistway, 2 is a car that moves up and down the hoistway 1, and 3a and 3b are provided on both sides of the car 2 and are guide rails for the car that guides the car 2 up and down. is there.

 4 is a counterweight that moves up and down the hoistway in the direction opposite to the direction in which the car 2 moves up and down.5a and 5b are provided on both sides of the counterweight 4 and guide rails for the counterweight that guides the lifting of the counterweight 4. It is.

 Reference numeral 6 denotes a hoisting machine serving as a power source for raising and lowering the car 2 and the counterweight 4, and the hoisting machine 6 rotates a tractor 6 1 around which a main rope to be described later is wound and the traction 6 1 And a drive unit 62 including a motor to be driven.

 Reference numeral 7 denotes a mounting mechanism for mounting the hoisting machine 6 between the guide rails 5a and 5b. In the present embodiment, details of the mounting mechanism 7 will be described later.

 Reference numeral 8 denotes a counterweight pulley attached to the upper part of the counterweight 4, reference numeral 9 denotes an undercarriage pulley provided at the lower part of the car 2, and two undercarriage pulleys 9 are provided at the lower part of the car 2.

 10 is a main rope wound on a counterweight pulley 8 and a traction 6 Pulley 9 under the car cage. One end of the main rope 10 is fixed to the main rope attachment portion 11 at the upper end of the guide rail 3a, and the other end is fixed to the main rope attachment portion 12 provided between the guide rails 5a and 5b. .

In the plan view, the counterweight pulley 8 is inclined with respect to the plane passing through the guide rails 5a and 5b. Can be fixed to part 1 and 2. The elevator device rotates the traction tube 61 of the hoist 6 to raise and lower the car 2 and the counterweight 4 via the main rope 10.

 Next, the structure of the mounting mechanism 7 will be described in detail.

 FIG. 2 is an enlarged view showing the structure of the mounting mechanism 7, and parts other than the mounting mechanism 7 are omitted.

 The mounting mechanism 7 is composed of supporting stands 7 la and 7 lb, a beam 72, and a mounting frame 73 as a mounting member of the hoisting machine 6.

 The supports 7la and 71b are attached to the guide rails 5a and 5b, respectively, and the beam 72 has one end attached to the support 71a and the other end attached to the support 71b.

 On the beam 72, a mounting frame 73 of the hoisting machine is installed. The hoisting machine 6 is mounted on the mounting frame 73, and upper guide members 74a and 74b and lower guide members 75a and 75b are mounted thereon.

 As shown in FIG. 3, the upper guide member 74a and the lower guide member 75a sandwich a convex portion that is a sliding surface of the guide rail 5a via an elastic body. The upper guide member 74b and the lower guide member 75b have the same configuration. Therefore, the upper guide members 74a, 74b and the lower guide members 75a, 75b have a function of holding the mounting frame 73 slidably in the longitudinal direction of the guide rails 5a, 5b.

 During operation of the elevator device, the upper guide members 74a, 74b and the lower guide members 75a, 75b also have a function as a vibration-reducing member for reducing the lateral runout of the hoisting machine 6. I have.

The vertical load of the hoisting machine 6 and the mounting frame 73 is supported by the guide rails 5a and 5b via the beam 72 and the support bases 71a and 71b. Next, a method for installing the hoist on the premise of the above-described mounting mechanism 7 will be described. The flowchart in FIG. 4 and the working state diagrams in FIGS. 5 to 8 are used for the description. First, the guide rails 5a and 5b are erected in the hoistway 1 (S1 in FIG. 4). Next, the hoisting machine 6 is mounted on the bottom of the hoistway 1 while being mounted on the mounting frame 73 (S2 in FIG. 4). At this time, the winding machine 6 and the mounting frame 73 are placed between the guide rails 5a and 5b. After the hoist 6 and the mounting frame 73 are separately placed between the guide rails 5a and 5b, the hoist 6 may be mounted on the mounting frame 73.

 Next, as shown in FIG. 5, the upper guide members 74a, 74b and the lower guide members 75a, 75b are mounted on the mounting frame 73 (S3 in FIG. 4). By mounting the upper guide members 74a and 74b and the lower guide members 75a and 75b, the mounting frame 73 and the hoisting machine 6 are slidably held in the longitudinal direction of the guide rails 5a and 5b. Will be.

 Next, as shown in FIG. 6, the hoist 6 is lifted (S4 in FIG. 4). The hoisting machine 6 or the mounting frame 73 is used as a hanging point, and the electric hoist 13 lifts the hoist. At this time, the mounting frame 73 slides in the longitudinal direction of the guide rails 5a and 5b in a state where the hoisting machine 6 is mounted.

 When the hoist 6 and the mounting frame 73 are lifted to a predetermined height, the lifting jig 14 is fixed below the hoist 6 or the mounting frame 73. Note that the lifting jig 14 may be fixed in advance.

Thereafter, as shown in FIG. 7, both ends of the lifting jig 14 are set as hanging points, and the hoist 6 is further lifted by the chain blocks 13a and 13b (S5 in FIG. 4). At this time, the chain blocks 13a and 13b are simultaneously operated. Since the lifting jig 14 is fixed below the hoisting machine 6 or the mounting frame 73, the lifting allowance required for installing the chain blocks 13a and 13b can be reduced. The hoisting machine 6 can be arranged close to the ceiling of the hoistway 1. After the hoisting machine 6 reaches the top of the hoistway 1 (Fig. 8), the supports 7 1a and 7 1b are attached to the guide rails 5a and 5b, respectively. The beam 72 is fixed to, 71b (S6 in Fig. 4).

 After that, the mounting frame 73 is lowered onto the beam 72, and the mounting frame 73 is set on the beam 72 (S7 in FIG. 4).

 According to the above operation procedure, the hoisting machine 6 is installed at the top in the hoistway 1 as shown in FIG.

 In the installation method described above, since the horizontal movement of the hoisting machine 6 and the mounting frame 73 is regulated by the guide rails 5a and 5b, the hoisting machine 6 is stable even during lifting. In addition, the position of the mounting frame 73 can be easily adjusted and the installation accuracy of the hoisting machine 6 can be easily ensured. In addition, since the guide members are provided at the top, bottom, left and right, the mounting frame 73 is used for lifting. Can be stably lifted even when a rotational moment acts on the surface.

 Furthermore, the lifting process of the hoisting machine 6 is divided into two stages. In the case of the lifting shown in Fig. 7, since the lifting jig 14 is fixed below the hoist 6 or the mounting frame 73, the space above the hoistway 1 required for lifting is reduced. be able to. The lifting jig 14 has a dimension longer than the distance between the guide rails 5a and 5b, and both ends protrude from the hoisting machine 6 or the mounting frame 73 beyond the guide rails 5a and 5b. I have. Since the projecting portion is suspended, the chain blocks 13a and 13b do not come into contact with the hoisting machine 6 and the mounting frame 73.

 In this embodiment, the guide members 74a, 74b, 75a, 75b are mounted on the mounting frame 73, but the mounting frame 73 is not used and the hoisting machine 6 You may make it attach directly.

In this embodiment, the case where the hoisting machine 6 is attached to the guide rails 5a and 5b of the counterweight is described. The above installation method can be applied to 3a and 3b.

 Further, in this embodiment, a support member that supports the vertical load of the hoisting machine 6 and the mounting frame 73 is constituted by the supports 7 1 a, 7 lb and the beam 72, but is constituted by other members. It is also possible to configure. The support member may be fixed to the guide rails 5 a and 5 b and may be configured to support the vertical load of the hoisting machine 6 and the mounting frame 73.

 The hoisting machine 6 and the mounting frame 73 are finally installed on the beam 72. However, the hoisting machine 6 or the mounting frame 73 is connected to the beam 72 via another member such as an elastic member. You may make it install on top.

 In this embodiment, the case where the hoisting machine 6 is installed at the top of the hoistway 1 is shown. However, the present invention is not limited to the top. Applicable. 'The effects of the installation method of the hoist of the present invention are as follows.

The method of installing a hoist according to the present invention includes: an erecting step of erecting a first guide rail and a second guide rail in a hoistway; and, after the erecting step, attaching a mounting member to the first guide. A mounting step of mounting a guide member slidably holding the guide rail and the second guide rail to the mounting member; and a state in which a winding machine is mounted on the mounting member; A lifting step of lifting the hoist while sliding the mounting member in the longitudinal direction of the first guide rail and the second guide rail; and after the lifting step, A fixing step of fixing a supporting member for supporting a vertical load of the winding machine and the mounting member to the guide rail and the second guide rail, and after the fixing step, the mounting member and the mounting member are fixed on the supporting member. Install the hoist Because having a placing step, it can be installed easily 卷上 machine. The method for installing a hoist according to the present invention includes: an erecting step of erecting a first guide rail and a second guide rail in a hoistway; and after the erecting step, the hoisting machine is connected to the first guide rail. An attaching step of attaching a guide member which slidably holds the guide rail and the second guide rail to the hoist; and after the attaching step, the hoist is connected to the first guide rail and the first guide rail. A lifting step of lifting the hoist while sliding in the longitudinal direction of the second guide rail; and after the lifting step, the first guide rail and the second guide rail are attached to the first guide rail and the second guide rail. Since the method includes a fixing step of fixing a support member that supports a vertical load of the hoist, and an installation step of installing the hoist on the support member after the fixing step, the hoist can be easily mounted. Can be installed.

 Further, since the lifting step includes a step of attaching a lifting jig to the hoist or the mounting member and lifting the lifting jig as a lifting point, the hoist can be easily installed.

 Further, in the lifting step, as the lifting jig, a protruding portion that protrudes beyond the first guide rail from the hoisting machine or the mounting member; and a protruding portion that protrudes from the hoisting machine or the mounting member. Using a lifting jig having a protruding portion that protrudes beyond the guide rail of No. 2 and lifting using the protruding portion as a hanging point, a device required for lifting may come into contact with the hoist and the mounting member. Absent.

Still further, the lifting step includes: a first lifting step of lifting the hoist or the mounting member as a hanging point; and after the first lifting step, the lifting machine or the mounting member. The lifting jig having a protruding portion projecting beyond the first guide rail from the first guide rail and a protruding portion projecting beyond the second guide rail from the hoisting machine or the mounting member from the hoisting machine or the hoisting machine. A second lifting step of attaching to the mounting member and lifting with the protruding portion as a hanging point, so that a device required for lifting may come into contact with the hoist and the mounting member. And not. Industrial applicability

 As described above, the present invention is applied to a machine room-less elevator apparatus in which a hoist is installed at a predetermined height from the bottom of a hoistway.

Claims

The scope of the claims 1. An erecting step of erecting the first guide rail and the second guide rail in the hoistway;  After the erecting step, an attaching step of attaching to the attaching member a guide member that slidably holds the attaching member with respect to the first guide rail and the second guide rail,  In the state where the hoisting machine is mounted on the mounting member, after the mounting process, the hoisting machine is slid while sliding the mounting member in the longitudinal direction of the first guide rail and the second guide rail. A lifting process for lifting,  After the lifting step, a fixing step of fixing a supporting member for supporting a vertical load of the hoist and the mounting member to the first guide rail and the second guide rail,  An installation step of installing the mounting member and the hoist on the support member after the fixing step. 2. Erecting the first guide rail and the second guide rail in the hoistway;  After the erecting step, an attaching step of attaching a guide member for holding the hoist slidably to the first guide rail and the second guide rail to the hoist,  A lifting step of lifting the hoist while sliding the hoist in the longitudinal direction of the first guide rail and the second guide rail after the attaching step; After the lifting step, the first guide rail and the second guide rail A fixing step of fixing a support member for supporting the vertical load of the winding machine to the tool, and an installation step of setting the winding machine on the support member after the fixing step. How to install the hoist. 3. The lifting step, wherein a lifting jig is attached to the hoisting machine or the mounting member, and the lifting jig is lifted with the lifting jig as a lifting point. Installation method of the hoisting machine described in paragraph 2. 4. In the lifting step, as the lifting jig, a protruding portion protruding beyond the first guide rail from the hoisting machine or the mounting member, and a lifting part protruding from the hoisting machine or the mounting member. The hoisting machine according to claim 3, wherein a lifting jig having a protruding portion protruding beyond the guide rail of (2) is used, and the protruding portion is lifted as a hanging point. Installation method. 5. The lifting step is  A first lifting process of lifting the hoist or the mounting member as a hanging point;  After the first lifting step, a projecting portion projecting from the hoisting machine or the mounting member beyond the first guide rail, and the second guiding rail from the hoisting machine or the mounting member are connected to each other. And a second lifting step of attaching a lifting jig having a projecting portion projecting beyond the lifting device to the hoisting machine or the mounting member, and lifting the projecting portion as a hanging point. The installation method of the hoisting machine according to paragraph 1 or 2.