CN114516574B

CN114516574B - Guide rail and elevator

Info

Publication number: CN114516574B
Application number: CN202111360718.8A
Authority: CN
Inventors: 渡边友康; 西野克典
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 2020-11-20
Filing date: 2021-11-17
Publication date: 2023-05-26
Anticipated expiration: 2041-11-17
Also published as: CN114516574A; JP2022081807A; JP7449218B2

Abstract

The invention provides a guide rail and an elevator, which can increase strength for load in the vertical direction. The guide rail (20) includes a plurality of rail members (24), a plurality of reinforcing members (25), and a joint member (40). A plurality of reinforcing members (25) are fixed to the back surface of the rail member (24) and are arranged along the vertical direction of the hoistway. The joint member (40) connects two reinforcing members (25, 25) adjacent in the vertical direction among the plurality of reinforcing members (25).

Description

Guide rail and elevator

Technical Field

The invention relates to a guide rail of an elevator and the elevator.

Background

Generally, a guide rail for supporting a car and a counterweight so that the car and the counterweight can move is provided in a hoistway of an elevator. The guide rail has a rail member provided with a sliding surface portion on which a slider of the car and the counterweight slides, and a reinforcing member reinforcing the rail member. The reinforcing member reinforces the rail member against a horizontal directional load in the rail member.

As a guide rail provided with a reinforcing member, for example, a guide rail described in patent document 1 is known. Patent document 1 describes a technique including: a plurality of track members; a reinforcing member fixed to the rail member and extending in the up-down direction along the back surface of the rail member; and a joint portion fixed to the reinforcing member, connecting the two rail members.

Prior art literature

Patent literature

Patent document 1: japanese patent application laid-open No. 2017-206367.

Disclosure of Invention

Problems to be solved by the invention

The load is applied to the rail member not only in the horizontal direction but also in the vertical direction when the emergency brake device is operated. However, in the technique described in patent document 1, the reinforcement of the guide rail is insufficient for the load in the vertical direction.

The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a guide rail and an elevator that can increase the strength against a load in the vertical direction.

Means for solving the problems

In order to solve the above problems, the guide rail includes a plurality of rail members, a plurality of reinforcing members, and joint members. The plurality of rail members are arranged along the vertical direction of the hoistway. The plurality of reinforcing members are fixed to the rear surface of the rail member and are arranged along the vertical direction of the hoistway. The joint member connects two reinforcing members adjacent to each other in the vertical direction among the plurality of reinforcing members.

In addition, the elevator includes a guide rail vertically installed in a hoistway and a lifting body that moves up and down along the guide rail. As the guide rail, the guide rail described above can be applied.

Effects of the invention

According to the guide rail and the elevator having the above-described structure, strength can be increased even for a load in the vertical direction.

Drawings

Fig. 1 is a schematic configuration diagram showing an elevator according to embodiment 1.

Fig. 2 is a plan view showing an elevator according to embodiment 1.

Fig. 3A and 3B are diagrams showing the guide rail according to embodiment 1, wherein fig. 3A is a front view and fig. 3B is a side view.

Fig. 4 is a sectional view taken along line A-A in fig. 3B.

Fig. 5A and 5B are views showing a guide rail according to embodiment 2, in which fig. 5A is a front view and fig. 5B is a side view.

Fig. 6 is a sectional view taken along line A-A in fig. 5B.

Fig. 7A and 7B are views showing a guide rail according to embodiment 2, and show different connection positions from those of fig. 5A and 5B, wherein fig. 7A is a front view and fig. 7B is a side view.

Fig. 8A, 8B, and 8C are views showing a guide rail according to embodiment 3, in which fig. 8A is a front view, fig. 8B is a side view, and fig. 8C is a rear view.

Fig. 9A is a sectional view taken along line A-A in fig. 8C, and fig. 9B is a sectional view taken along line B-B in fig. 8C.

Fig. 10 is a view showing a joint member in a guide rail according to embodiment 3.

Description of the reference numerals

1 … elevator, 10 … car (lifting body), 11 … hoisting machine, 13 … main rope, 15 … counterweight (lifting body), 16 … slider, 20 … car side rail (guide rail), 21 … sliding face, 22 … flange portion, 25, 26, 27 … reinforcing member, 28 … 1 st link plate, 28a … adjustment hole, 28b … 1 st fixing hole, 29 … 2 nd link plate, 29b … 2 nd fixing hole, 30 … counterweight side rail, 40, 60 … joint member, 45 … track fixing bolt, 46 … reinforcing member fixing bolt, 47 … link bolt, 48 … track connecting bolt, 50 … support structure, 61 … main body portion, 61b … rib, 62 … joint side 1 st plate, 63 … joint side 2 nd plate, 71 … adjusting bolt, 72 … 1 st reinforcing member fixing bolt, 73 … 2 nd reinforcing member fixing bolt, 80 … track connecting member, 100 … track connecting member, 103, and lifting wall surface of hoistway 101.

Detailed Description

The guide rail and the elevator according to the embodiment will be described below with reference to fig. 1 to 10. In the drawings, common components are denoted by the same reference numerals.

1. Embodiment 1 example

1-1 structural example of an Elevator

First, an elevator provided with a support structure for a guide rail of embodiment 1 (hereinafter referred to as "this example") will be described with reference to fig. 1 and 2.

Fig. 1 is a schematic configuration diagram showing an elevator. Fig. 2 is a plan view showing an elevator.

As shown in fig. 1, an elevator 1 of the present example is provided in a hoistway 101 formed in a building structure 100. As shown in fig. 1 and 2, the elevator 1 includes: a car 10 that moves up and down in a hoistway 101 and carries a person or a load, a hoisting machine 11, a control panel 12, a main rope 13, a compensating sheave 14, and a counterweight 15. In addition, the elevator 1 includes: a car side guide rail 20 for supporting the car 10 so that the car 10 can move, which represents an example of the lifting body; and a counterweight-side guide rail 30 for supporting the counterweight 15 so that the counterweight 15 can move, which represents an example of the lifting body. A machine room 102 is provided at the top of the hoistway 101.

The hoisting machine 11 is disposed in the machine room 102, and the main rope 13 is wound to raise and lower the car 10. A control panel 12 for controlling the entire elevator 1 is provided in the machine room 102.

The main rope 13 is connected to the car 10 and the counterweight 15. The car 10 is coupled to a counterweight 15 via a main rope 13. The car 10 is provided with a slider 16 that slides on a car-side guide rail 20.

By driving the hoisting machine 11, the car 10 moves up and down along the car-side guide rail 20 in the hoistway 101, and the counterweight 15 moves up and down along the counterweight-side guide rail 30 in the hoistway 101. The direction in which the car 10 and the counterweight 15 move up and down is set as the up-down direction. The vertical direction is parallel to the vertical direction.

The car 10 and the counterweight 15 are connected by a compensating rope 17. The compensating rope 17 is wound around the compensating sheave 14 disposed at the lowermost portion of the hoistway 101. The compensating sheave 14 is rotatably disposed at the lowermost portion of the hoistway 101.

The car-side guide rail 20 is supported by the support structure 50 and is erected in the hoistway 101. Similarly, the counterweight-side guide rail 30 is supported by the support structure 50 and is erected in the hoistway 101. The support structure 50 is fixed to a wall surface 103 of the hoistway 101, and a plurality thereof are provided along the vertical direction of the hoistway 101. The car-side guide rail 20 is simply referred to as a guide rail 20.

1-2 structural example of guide rail

Next, the structure of the guide rail 20 will be described with reference to fig. 3A to 4.

Fig. 3A is a front view of the guide rail 20, fig. 3B is a side view of the guide rail 20, and fig. 4 is a sectional view taken along line A-A in fig. 3A and 3B.

As shown in fig. 3A and 3B, the guide rail 20 has a plurality of rail members 24, a plurality of reinforcing members 25, a joint member 40, a rail fixing bolt 45, and a reinforcing member fixing bolt 46. The plurality of rail members 24 are arranged in the up-down direction. The rail member 24 has a slide surface portion 21 and a flange portion 22 for sliding the slider 16 (see fig. 1). The flange 22 faces a reinforcing member 25 described later. The sliding surface portion 21 protrudes substantially perpendicularly from the flange portion 22.

A reinforcing member 25 is disposed on the rear surface of the flange portion 22 opposite to the surface from which the sliding surface portion 21 protrudes. The plurality of reinforcing members 25 are arranged in the vertical direction like the rail members 24.

As shown in fig. 4, the reinforcing member 25 of this example is made of H-steel having an H-shaped cross section. The reinforcing member 25 has a connecting portion 25a, a 1 st face portion 25b, and a 2 nd face portion 25c. The 1 st face portion 25b and the 2 nd face portion 25c face each other and are connected by a connecting portion 25 a. The 1 st surface portion 25b is disposed on the back surface of the flange portion 22 of the rail member 24. The 1 st face portion 25b and the flange portion 22 are fastened and fixed by a rail fixing bolt 45. Further, the reinforcing member 25 reinforces the rail member 24 against a horizontal directional load in the rail member 24.

The joint member 40 is disposed at a joint portion between two reinforcing

members

25, 25 adjacent to each other in the up-down direction (vertical direction) among the plurality of reinforcing members 25. In the guide rail 20 of the present embodiment, the joint portions of the plurality of rail members 24 and the joint portions of the plurality of reinforcing members 25 are disposed at the same position.

The joint member 40 is disposed on the back surface of the 2 nd surface portion 25c of the reinforcing member 25 opposite to the 1 st surface portion 25 b. The joint member 40 is fastened and fixed to the 2 nd surface portion 25c of the two reinforcing

members

25, 25 adjacent in the up-down direction by the reinforcing member fixing bolts 46. Thereby, the two reinforcing

members

25, 25 adjacent in the up-down direction are connected by the joint member 40. Further, since the joint portion of the rail member 24 is disposed at the same position as the joint portion of the reinforcing member 25, two

rail members

24, 24 adjacent in the up-down direction are connected by the joint member 40.

In this way, by connecting the two vertically adjacent reinforcing

members

25, 25 by the joint member 40, the load in the vertical direction of the rail member 24 can be received by the joint member 40 and the reinforcing member 25. As a result, the strength can be increased not only for the load in the horizontal direction but also for the load in the vertical direction.

2. Embodiment 2 example

Next, a guide rail according to embodiment 2 will be described with reference to fig. 5A to 6.

Fig. 5A is a front view showing the guide rail, fig. 5B is a side view showing the guide rail, and fig. 6 is a sectional view taken along line A-A in fig. 5A and 5B.

The guide rail 20A of embodiment 2 is different from the guide rail 20 of embodiment 1 in the structure of the reinforcing member. Therefore, the reinforcing member will be described herein, and the portions common to the guide rail 20 of embodiment 1 will be denoted by the same reference numerals, and redundant description thereof will be omitted.

As shown in fig. 5A and 5B, the guide rail 20A has a plurality of rail members 24, a plurality of reinforcing members 26, a joint member 40, a rail fixing bolt 45, and a coupling bolt 47. As shown in fig. 5B and 6, the reinforcing member 26 is formed in a substantially rectangular parallelepiped shape. The reinforcing member 26 is fastened and fixed to the flange portion 22 of the rail member 24 by a rail fixing bolt 45.

In the example shown in fig. 5A and 5B, the joint of the rail member 24 and the joint of the reinforcing member 26 are disposed at the same position. The joint member 40 is disposed at the joint portion of the two reinforcing

members

26, 26 adjacent in the up-down direction. The connecting bolt 47 penetrates the joint member 40 and the reinforcing member 26, and penetrates the flange portion 22 of the rail member 24. Therefore, the joint member 40 is fastened and fixed not only to the reinforcing member 26 but also to the rail member 24 by the connecting bolt 47. The two

rail members

24, 24 adjacent in the up-down direction and the two reinforcing

members

26, 26 adjacent in the up-down direction are connected by the joint member 40.

Other structures are the same as those of the guide rail 20 of embodiment 1, and therefore, their description is omitted. The guide rail 20A according to embodiment 2 can also provide the same operational effects as those of the guide rail 20 according to embodiment 1 described above.

In the guide rail 20 of embodiment 1 and the guide rail 20A of embodiment 2, an example in which the joint portion of the rail member 24 and the joint portions of the reinforcing

members

25 and 26 are disposed at the same position has been described, but the present invention is not limited thereto.

Fig. 7A and 7B show the guide rail 20B in which the joint of the rail member 24 and the joint of the reinforcing member 26 are disposed at different positions. The track member 24, the reinforcing member 26, and the joint member 40 have the same structure as the track member 24, the reinforcing member 26, and the joint member 40 of embodiment 2.

As shown in fig. 7A and 7B, two

rail members

24, 24 adjacent in the up-down direction are connected by a reinforcing member 26. A rail fixing bolt 45 for fastening the rail member 24 and the reinforcing member 26 is disposed at the joint portion of the rail member 24. In addition, a joint member 40 is disposed at the joint portion of the reinforcing member 26. The two reinforcing

members

26, 26 adjacent to each other in the vertical direction are connected by a joint member 40. The joint member 40 is fixed to the reinforcing member 26 and the rail member 24 by a connecting bolt 47.

In this way, even when the joint portion of the rail member 24 and the joint portion of the reinforcing member 26 are disposed at different positions, the strength against the load in the vertical direction can be increased by connecting the rail member 24 with the reinforcing member 26 and connecting the reinforcing member 26 with the joint member 40.

3. Embodiment 3 example

Next, a guide rail according to embodiment 3 will be described with reference to fig. 8A to 10.

Fig. 8A is a front view showing the guide rail, fig. 8B is a side view showing the guide rail, and fig. 8C is a side view. Fig. 9A is a sectional view taken along line A-A in fig. 8C, and fig. 9B is a sectional view taken along line B-B in fig. 8C. Fig. 10 is a view showing a joint member.

The guide rail 20B of embodiment 3 is different from the guide rail 20 of embodiment 1 in the structures of the reinforcing member and the joint member. Therefore, the reinforcing member and the joint member will be described herein, and the portions common to the guide rail 20 of embodiment 1 will be denoted by the same reference numerals, and redundant description thereof will be omitted.

As shown in fig. 8A to 8C, the guide rail 20B has a plurality of rail members 24, a plurality of reinforcing members 27, a joint member 60, an adjustment bolt 71, a 1 st reinforcing member fixing bolt 72, a 2 nd reinforcing member fixing bolt 73, and a rail coupling member 80.

Two

rail members

24, 24 adjacent in the up-down direction are connected by a rail connecting member 80. The rail coupling member 80 is fixed to the flange portion 22 with the rail coupling bolts 48.

The reinforcing member 27 is fixed to the flange 22 of the rail member 24 and the rail fixing bolt 45. The reinforcing member 27 is made of H steel in the same manner as the reinforcing member 25 of embodiment 1. The joint of the reinforcing member 27 is disposed at the same position as the joint of the rail member 24. Further, two reinforcing

members

27, 27 adjacent to each other in the vertical direction are arranged at an interval in the vertical direction. The two reinforcing

members

27, 27 are spaced apart longer than the length of the rail coupling member 80. Thereby, the reinforcing member 27 is prevented from interfering with the rail coupling member 80 fixed to the joint portion of the rail member 24.

A 1 st connecting plate 28 is provided at the lower end portion of the reinforcing member 27 in the up-down direction, and a 2 nd connecting plate 29 is provided at the upper end portion of the reinforcing member 27 in the up-down direction. The 1 st connecting plate 28 and the 2 nd connecting plate 29 are formed in a substantially flat plate shape and are arranged substantially parallel to the horizontal direction. The 1 st connecting plate 28 is opposed to the 2 nd connecting plate 29 of the reinforcing member 27 arranged below in the up-down direction with a space therebetween.

As shown in fig. 9A, the 1 st connecting plate 28 is formed with a plurality of adjustment holes 28a and a plurality of 1 st fixing holes 28b. The adjustment hole 28a and the 1 st fixing hole 28b penetrate the 1 st connecting plate 28 in the up-down direction. Further, an internal thread is formed in the adjustment hole 28a, and is screwed with an adjustment bolt 71 described later. Then, the 1 st reinforcing member fixing bolt 72 is inserted into the 1 st fixing hole 28b.

As shown in fig. 9B, a plurality of 2 nd fixing holes 29B are formed in the 2 nd connecting plate 29. The 2 nd fixing hole 29b penetrates the 2 nd connecting plate 29 in the up-down direction. A 2 nd reinforcing member fixing bolt 73 is inserted into the 2 nd fixing hole 29b.

A joint member 60 is disposed between two reinforcing

members

27, 27 adjacent in the up-down direction. Specifically, the joint member 60 is disposed between the 1 st connecting plate 28 and the 2 nd connecting plate 29, wherein the 1 st connecting plate 28 is disposed on the upper reinforcing member 27 in the up-down direction, and the 2 nd connecting plate 29 is disposed on the lower reinforcing member 27 in the up-down direction.

As shown in fig. 10, the joint member 60 has a main body 61, a joint-side 1 st plate 62, and a joint-side 2 nd plate 63. The main body 61 has a semicircular cylindrical shape with a cross-section cut in the horizontal direction. Further, the main body 61 is provided with a rib 61b extending in the vertical direction. The rib 61b is disposed at a substantially central portion of the main body 61. A joint-side 1 st plate 62 is provided at an upper end portion in the up-down direction of the main body portion 61, and a joint-side 2 nd plate 63 is provided at a lower end portion in the up-down direction of the main body portion 61.

The joint-side 1 st plate 62 and the joint-side 2 nd plate 63 are formed in a substantially flat plate shape and are arranged substantially parallel to the horizontal direction. The joint-side 1 st plate 62 is provided with a plurality of joint-side 1 st fixing holes, not shown. A 1 st reinforcing member fixing bolt 72 is inserted into the joint-side 1 st fixing hole. The joint-side 2 nd plate 63 is provided with a plurality of joint-side 2 nd fixing holes, not shown. A 2 nd reinforcing member fixing bolt 73 is inserted into the joint-side 2 nd fixing hole.

The joint-side 1 st plate 62 is opposed to the 1 st connecting plate 28 of the reinforcing member 27 arranged above in the vertical direction with a gap therebetween which becomes an adjustment amount. The joint-side 2 nd plate 63 is placed on the 2 nd connecting plate 29 of the reinforcing member 27 disposed below in the up-down direction.

The joint-side 1 st plate 62 and the 1 st joining plate 28 are joined together via a plurality of 1 st reinforcing member fixing bolts 72. The joint-side 2 nd plate 63 and the 2 nd connecting plate 29 are connected together via a plurality of 2 nd reinforcing member fixing bolts 73.

The adjustment bolt 71 is screwed into an adjustment hole 28a provided in the 1 st coupling plate 28 of the reinforcing member 27. The tip end portion of the adjustment bolt 71 abuts against the joint-side 1 st plate 62 of the joint member 60. The adjusting bolt 71 is constituted by a jack bolt, and by adjusting the amount of tightening the adjusting hole 28a, the position of the reinforcing member 27 in the up-down direction can be adjusted.

Here, the adjustment bolt 71 is a bolt for transmitting a compressive load from the upper reinforcing member 27 to the lower reinforcing member 27. In addition, a plurality of (3) adjustment holes 28a are formed at positions opposed to both end portions of the main body portion 61 of the joint member 60 and the ribs 61b. Therefore, the adjustment bolt 71 abuts against both end portions of the joint member 60 and the portion where the rib 61b is provided. Thereby, the joint member 60 can receive the compressive load from the adjustment bolt 71.

In this way, by disposing the joint member 60 between the two reinforcing

members

27, 27 adjacent in the vertical direction and connecting the two reinforcing members 27, not only the strength against the load in the horizontal direction but also the strength against the load in the vertical direction can be improved.

In the above embodiment, the example was described in which the adjustment bolt 71 was disposed with the gap as the adjustment amount provided between the joint-side 1 st plate 62 of the joint member 60 and the 1 st connecting plate 28 of the reinforcing member 27, but the present invention is not limited thereto. For example, an adjustment bolt 71 may be disposed with a gap as an adjustment amount between the joint-side 2 nd plate 63 of the joint member 60 and the 2 nd coupling plate 29 of the reinforcing member 27.

The number of the adjustment bolts 71 is not limited to 3, and two or more may be provided. The number of the 1 st reinforcing member fixing bolts 72 and the 2 nd reinforcing member fixing bolts 73 is not limited to two, and 3 or more may be provided.

Other structures are the same as those of the guide rail 20 of embodiment 1, and therefore, their description is omitted. The guide rail 20B according to embodiment 3 can also provide the same operational effects as those of the guide rail 20 according to embodiment 1 described above.

The present invention is not limited to the embodiment described above and shown in the drawings, and various modifications can be made without departing from the spirit of the invention described in the claims.

In the above embodiment, the example of applying the car-side guide rail 20 was described as the guide rail, but the present invention is not limited to this, and the counterweight-side guide rail 30 may be applied.

In the present specification, the words "parallel" and "orthogonal" are used, but these words do not mean strictly "parallel" and "orthogonal", and may be "substantially parallel" and "substantially orthogonal" within a range including "parallel" and "orthogonal" and capable of further exhibiting their functions.

Claims

1. A guide rail, comprising:

a plurality of rail members arranged along the vertical direction of the elevator shaft;

a plurality of reinforcing members fixed to the back surface of the rail member and arranged along the vertical direction of the hoistway; and

and a joint member connecting two of the plurality of reinforcing members adjacent to each other in the vertical direction.

2. The guide rail of claim 1, wherein:

the joint member is fixed to a back surface of an opposite side of a surface of the adjacent two reinforcing members opposite to the rail member.

3. The guide rail of claim 1, wherein:

the joint portions of the plurality of rail members and the joint portions of the plurality of reinforcing members are arranged at the same position,

the joint member connects the two rail members adjacent in the vertical direction and the two reinforcing members adjacent in the vertical direction.

4. The guide rail of claim 1, wherein:

the joint portions of the plurality of rail members and the joint portions of the plurality of reinforcing members are disposed at different positions,

two of the rail members adjacent in the vertical direction are coupled together by the reinforcing member.

5. The guide rail of claim 1, wherein:

the guide rail includes a rail coupling member coupling the two rail members adjacent to each other in the vertical direction,

two reinforcing members adjacent to each other in the vertical direction are arranged at a distance longer than the length of the rail coupling member in the vertical direction,

the joint member is disposed between two reinforcing members adjacent to each other in the vertical direction.

6. The guide rail of claim 5, wherein:

a 1 st connecting plate is arranged at one end of the reinforcing component in the vertical direction,

a 2 nd connecting plate is arranged at the other end part of the reinforcing component in the vertical direction,

the joint member has:

a joint-side 1 st plate which is opposed to the 1 st joint plate and is fixed to the 1 st joint plate via a 1 st reinforcing member fixing bolt; and

a joint-side 2 nd plate which is opposed to the 2 nd joint plate and is fixed to the 2 nd joint plate via a 2 nd reinforcing member fixing bolt,

a gap is formed between the 1 st joining plate and the joint-side 1 st plate or between the 2 nd joining plate and the joint-side 2 nd plate.

7. The guide rail of claim 6, wherein:

an adjusting bolt for adjusting the position of the reinforcing member in the vertical direction is screwed to a joint plate having a gap formed between the joint side 1 st plate and the joint side 2 nd plate, of the 1 st joint plate and the 2 nd joint plate,

the tip end portion of the adjusting bolt is in contact with the joint-side 1 st plate or the joint-side 2 nd plate.

8. An elevator, characterized by comprising:

a guide rail vertically arranged in the lifting well; and

a lifting body which moves up and down along the guide rail,

the guide rail includes:

a plurality of rail members arranged along a vertical direction of the hoistway;