CN217996416U - Mounting structure of rope head assembly of machine-room-less elevator and machine-room-less elevator - Google Patents

Abstract

The present disclosure relates to a mounting structure of a head assembly of a machine room-less elevator and a machine room-less elevator. The machine room-less elevator comprises a counterweight guide rail formed by a T-beam, the counterweight guide rail having a bottom portion and a guide portion disposed in the middle of a first surface of the bottom portion and perpendicular to the bottom portion. The mounting structure includes: the supporting beam is used for hoisting the rope head assembly and comprises a first end and a second end; and a connector detachably connecting the first end of the support beam to a second surface of the bottom of the counterweight guide rail, the second surface being opposite the first surface.

Description

Mounting structure of rope head assembly of machine-room-less elevator and machine-room-less elevator

Technical Field

The present disclosure relates to the field of elevators, and in particular, to a mounting structure of a head assembly of a machine room-less elevator and a machine room-less elevator.

Background

The elevator is indispensable transportation equipment in modern multi-storey and high-rise buildings, the basic structure of the elevator in the prior art comprises a machine room, a car, a hoistway and a landing, and the elevator drives the car to move up and down along a guide rail arranged on the wall of the hoistway through a motor so as to achieve the purpose of transporting people or goods. The machine room is generally disposed at the top of an elevator shaft, and is a separately disposed space, and various devices, such as a control cabinet, a traction sheave, a traction machine, a guide wheel, a speed governor, a main power control box, and the like, are installed in the machine room. When the traction machine rotates, the elevator traction rope is driven to move, so that the lift car and the counterweight device are driven to move up and down. One end of the hoisting rope of the elevator is passed around the traction sheave and the guide sheave and connected to the counterweight, and the other end is passed around a movable sheave fixedly connected to the car and fixed to a rope head assembly, such as a rope hitch, provided in the machine room of the elevator. Therefore, a general elevator having a machine room requires a plurality of load beams for fixing a rope hitch plate in the machine room at the top of the hoistway.

In order to save space, elevators without machine room have gained popularity. In the machine room-less elevator, equipment such as a control cabinet, a traction machine and a speed limiter which are arranged in a machine room above a well are changed into equipment arranged in the well, so that the building area utilization rate is effectively improved, and meanwhile, the building cost is reduced. No separate machine room is provided any more, resulting in a change in the mounting position of the head assembly of the elevator.

In known solutions, the rope head assembly is mounted on the counterweight guide rail on one side and on the car guide rail on the other side. The installation requires additional holes to be made in the guide rail to fix the head assembly. In particular in the case of guide rails formed by T-beams, known mounting solutions require that mounting holes be provided in the guides of the T-beams. When the above-described elevator without machine room is used as a skip-floor elevator, considering that the mounting holes in the guide portions may affect the operation of the elevator, for example, cause vibration, noise, wear of shoes, etc., reduce ride comfort, or even cause safety hazards, it is necessary to replace the holed guide rails with standard guide rails, or to perform reinforcement processing on the holed guide portions, for example, to provide additional reinforcement members to restore the strength of the guide rails, which processing may increase installation and material costs.

SUMMERY OF THE UTILITY MODEL

Therefore, an object of the present disclosure is to provide a mounting structure of a head assembly of a machine room-less elevator and a machine room-less elevator, in which the mounting structure does not require a mounting hole to be formed in a guide portion of a counterweight guide rail, which can reduce not only material cost but also mounting time; the mounting structure is also supported by the fixing piece of the guide rail, so that the shearing force generated by the rope head component to the mounting structure can be reduced.

The above object is achieved by a mounting structure of a head assembly of a machine room-less elevator and a machine room-less elevator described below.

According to one aspect of the present disclosure, there is provided a mounting structure of a head assembly of a machine room-less elevator including a counterweight guide rail formed by a T-beam, the counterweight guide rail having a bottom portion and a guide portion disposed at a middle portion of a first surface of the bottom portion and perpendicular to the bottom portion. The mounting structure includes: the supporting beam is used for hoisting the rope head assembly and comprises a first end and a second end; and a connector detachably connecting the first end of the support beam to a second surface of the bottom of the counterweight guide rail, the second surface being opposite the first surface.

In an embodiment, the counterweight guide rail is formed by at least two sections of T-beams and comprises at least one fixing connecting the at least two sections of T-beams, and the connecting piece is supported on one of the at least one fixing.

In an embodiment, the mounting structure further comprises a clamping device configured to clamp the connector with the bottom of the counterweight guide rail.

In an embodiment, the machine roomless elevator further comprises a car guide rail formed by a T-beam, the car guide rail having a bottom and a guide portion disposed in the middle of the first surface of the bottom and perpendicular to the bottom, the second end of the support beam being connected to the bottom of the car guide rail by a bolt, and the bottom of the car guide rail being perpendicular to the bottom of the counterweight guide rail.

In one embodiment, the connector is supported on a top end face of the one fixing member.

In one embodiment, the connecting member is a bent plate including a first portion and a second portion bent with respect to the first portion, the first portion of the bent plate is connected to the first end of the support beam by a bolt, and the second portion of the bent plate is detachably connected to the second surface of the bottom of the counterweight guide rail.

In an embodiment, the clamping device comprises a clamping piece and a fastener cooperating therewith, the clamping piece comprising a clamping portion and an extension portion, wherein the extension portion passes through a hole in the connecting piece, the clamping portion cooperating with the respective fastener to exert a clamping force on the bottom of the counterweight guide rail and the connecting piece, thereby pressing the connecting piece against the bottom of the counterweight guide rail.

In an embodiment, the mounting structure further comprises a protection plate disposed above the support beam.

According to another aspect of the present disclosure, there is provided a machine roomless elevator comprising a mounting structure according to the above.

In one embodiment, the machine roomless elevator is used as a jump-floor elevator.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments of the present disclosure will be briefly described below. The drawings are intended to depict only some embodiments of the disclosure, and not all embodiments of the disclosure are limited thereto. In the drawings:

fig. 1 shows a schematic view of a part of a machine roomless elevator including a hoisting machine, a rope assembly, and a mounting structure according to one embodiment of the present disclosure;

fig. 2 presents a partially enlarged view of a part of the elevator without machine room according to fig. 1;

fig. 3 presents a partial transverse section of the part of the elevator without machine room according to fig. 1;

fig. 4 is an exploded schematic view showing a mounting structure of a head assembly of the machineroom-less elevator according to fig. 1;

fig. 5 shows an exploded schematic view in a different direction from fig. 4 showing a mounting structure of a head assembly of the machineroom-less elevator according to fig. 1; and

fig. 6 illustrates a schematic view of a clamping device of a mounting structure of a roping assembly of an elevator without a machine room according to an embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the embodiments of the present disclosure will be described in detail and completely with reference to the accompanying drawings of specific embodiments of the present disclosure. Like reference symbols in the various drawings indicate like elements. It should be noted that the described embodiments are only some of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in the description and claims of the present disclosure are not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The use of the terms "comprising," "including," or "having" and the like, mean that the elements or items listed before or after the term, and the equivalents thereof, are included without excluding other elements or items. The terms "connected" or "in communication with," and the like, are not limited to physical or mechanical connections or communications shown in the drawings, but may include connections or communications equivalent thereto, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Various embodiments according to the present disclosure are described in detail below with reference to fig. 1 to 6.

As shown in fig. 1 to 2, the machine roomless elevator of the present disclosure includes a traction machine 1, a head assembly 2, and a mounting structure 3. The traction machine 1 is a power device of an elevator, also called as an elevator main machine, and is used for conveying and transmitting power to enable the elevator to run. In addition, the machine roomless elevator comprises car guide rails 4 for guiding the car and counterweight guide rails 5 for guiding the counterweight of the elevator, which are disposed vertically in the elevator shaft. The car guide rail 4 and the counterweight guide rail 5 may each be formed by a T-beam having a bottom part and a guide part arranged in the middle of the first surface of the bottom part and perpendicular to the bottom part. As used herein, a "base" is described with respect to a T-beam, and more specifically, with respect to a cross-section of a T-beam, and may also be referred to as a base, or the like.

As shown in fig. 1 to 3, the car guide rail 4 extends in the height direction of the elevator hoistway and has a bottom portion 40 and a guide portion 41 provided in the middle of a first surface 401 of the bottom portion 40 and perpendicular to the bottom portion 40, both forming a guide rail having a T-shaped cross section. The bottom 40 of the car guide rail 4 also has a second surface 402 opposite its first surface 401. The guide portion 41 of the car guide rail 4 guides the movement of the car. The counterweight guide rail 5 extends in the height direction of the elevator shaft and comprises a bottom part 50 and a guide part 51 arranged in the middle of the first surface 501 of said bottom part 50 and perpendicular to said bottom part 50, both also forming a guide rail with a T-shaped cross-section. The bottom 50 of the counterweight guide rail 5 also has a second surface 502 opposite its first surface 501. The guide part 51 of the counterweight guide rail 5 serves to guide the movement of the elevator counterweight. Furthermore, the bottom 40 of the car guide rail 4 is perpendicular to the bottom 50 of the counterweight guide rail 5, i.e. the lateral extension directions of the two are perpendicular to each other. For example, in the cross-sectional view of fig. 3, the bottom 40 of the car guide rail 4 extends in the horizontal direction in fig. 3 and the bottom 50 of the counterweight guide rail 5 extends in the vertical direction in fig. 3. As shown in fig. 1, the hoisting machine 1 may be provided on the car guide rail 4 with a shoe that slides along, for example, the guide portion 41 of the car guide rail 4.

The mounting structure 3 comprises support beams 6 and connecting pieces 7. The support beam 6 is used for hoisting the head assembly 2 of the elevator and includes a first end 61 and a second end 62, as shown in fig. 3. The support beam 6 is, for example, a square pipe, so that the integration degree of the installation structure or the elevator is higher, the tensile force which can be carried by the rope head assembly is larger, and the support beam can be applied to a longer hoisting rope and a higher floor. The connecting piece 7 detachably connects the first end 61 of the support beam 6 to a second surface 502 of the bottom 50 of the counterweight guide rail 5, which second surface 502 is opposite to the first surface 501 of the bottom 50 of the counterweight guide rail 5. For example, the second end 62 of the support beam 6 may be bolted to the car guide rail 4, specifically the second surface 402 of the bottom 40 of the car guide rail 4, as shown in fig. 1-3.

As shown in fig. 1 and 2, the counterweight guide rail 5 may be formed by at least two segments of T-beams and comprises at least one fixing piece 8 (which has a plate-like form and may therefore also be referred to as a fixing plate) connecting said at least two segments of T-beams, and the above-mentioned connecting piece 7 is supported on one of the at least one fixing piece 8. The car guide rail 4 may also be formed by at least two end T-beams and comprise at least one fixing (similar to the fixing 8 of the counterweight guide rail 5) connecting the at least two sections of T-beams. Preferably, the second end 62 of the support beam 6 is supported on one of the fixed parts of the car guide rail 4.

As shown in fig. 3 to 6, the mounting structure further comprises a clamping device 9, which clamping device 9 is configured to clamp the connecting piece 7 with the bottom 50 of the counterweight guide rail 5. Preferably, the connecting member 7 may be supported on a top end surface of the one fixing member 8. In one embodiment of the present disclosure, connecting member 7 is a bent plate including a first portion 71 and a second portion 72 bent with respect to first portion 71. The first portion 71 of the bent plate is connected to the first end 61 of the support beam 6, for example, by bolts, as shown in fig. 5. The second portion 72 of the bent plate is detachably connected to the second surface 502 of the bottom 50 of the counterweight guide rail 5, for example by means of the clamping device 9 described above, as shown in fig. 4. First and second portions 71 and 72 of the bending plate may be perpendicular to each other. In one embodiment of the present disclosure, the clamping device 9 includes a clamping member 91 and a fastener 92 engaged therewith, as shown in fig. 6. The clamp 91 comprises a clamp part 911 and an extension 912, as shown in fig. 3 and 4, the extension 912 passing through a hole in the connector 7, the clamp part 911 cooperating with the corresponding fastener 92 to exert a clamping force on the bottom part 50 of the counterweight guide rail 5 and the connector 7, thereby pressing the connector 7 against the bottom part 50 of the counterweight guide rail 5, in particular the second surface 502 of the bottom part 50 of the counterweight guide rail 5. For example, extension 912 of clamp 91 has external threads, while fastener 92 is a nut. The clamping portion 911 of the clamping piece 91 has a clamping surface which contacts the edge of the bottom part 50 of the counterweight guide rail 5, i.e. the edge portion of the first surface 501 of the bottom part 50 of the counterweight guide rail 5. The clamp 91 described above may be a forged clamp.

Preferably, the connecting element 7 may be a block or tubular connecting element. In addition to the one-piece bending plate described above, the connecting member 7 may also be formed by connecting a plurality of separate members. The present disclosure is not limited to the form of the connector.

As shown in fig. 4 and 5, when the mounting structure of the present disclosure is applied to an elevator, the second end 62 of the support beam 6, on which the head assembly 2 is hung, is first mounted to the bottom 40 of the car guide rail 4, then the second portion 72 of the connecting member 7 is mounted to the bottom 50 of the counterweight guide rail 5, and then the first end 61 of the support beam 6 is mounted to the first portion 71 of the connecting member 7.

As shown in fig. 4 and 5, the support beam 6 and the connecting member 7 are mounted to the respective fixing members of the car guide rail 4 and the counterweight guide rail 5 located at the upper portion, respectively, so that support by the fixing members of the car guide rail 4 and the fixing members of the counterweight guide rail 5 is achieved.

For example, the holes in the first and second ends 61, 62 of the support beam 6 and the holes in the first portion 71 of the connecting member 7 may be elongated holes extending in the horizontal direction to provide adjustment possibilities in the horizontal direction.

The mounting structure of the present disclosure is mounted to the bottom of the counterweight guide rail through the additionally provided connecting member, and therefore, there is no need to provide a mounting hole on the guide portion of the counterweight guide rail. In addition, the mounting structure of the present disclosure uses the fixing member of the counterweight guide rail to support the connecting member, and thus the shearing force to the clamping device can be reduced. Of course, the mounting structure of the present disclosure also uses the fixing piece of the car guide rail to support the support beam, and thus the shearing force to the bolt connecting the support beam to the bottom of the car guide rail can also be reduced.

With the above configuration, the machine room-less elevator of the present disclosure can be used as a jump-floor elevator, or as a high-floor elevator. When used as a jump elevator or a high-rise elevator, the counterweight guide rails of the elevator of the present disclosure do not need to be replaced or reinforced, and thus installation time and material and installation costs can be reduced.

In some embodiments of the present disclosure, the mounting structure 3 may further include a shielding plate (not shown in the drawings) disposed above the support beam 6. Through setting up the guard plate, thereby can prevent that the problem that the foreign object fell on the elevator or on the supporting beam influences the operation of elevator from taking place when no computer lab elevator of this disclosure is used as jump floor elevator.

The technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the invention, so as to achieve the purpose of the disclosure.

Claims (10)

1. A mounting structure of a head assembly of a machine room-less elevator, which comprises a counterweight guide rail (5) formed by a T-beam, the counterweight guide rail having a bottom portion and a guide portion provided in the middle of a first surface of the bottom portion and perpendicular to the bottom portion, characterized in that the mounting structure (3) comprises:

a support beam (6) for hoisting the rope head assembly (2) and comprising a first end (61) and a second end (62); and

a connector (7) detachably connecting a first end (61) of the support beam (6) to a second surface of the bottom of the counterweight guide rail (5), the second surface being opposite to the first surface.

2. The mounting arrangement according to claim 1, characterized in that the counterweight guide rail (5) is formed by at least two lengths of T-beam and comprises at least one fixing connecting the at least two lengths of T-beam, and that the connecting piece (7) is supported on one fixing (8) of the at least one fixing.

3. The mounting structure according to claim 1, characterized in that the mounting structure (3) further comprises a clamping device (9) configured to clamp the connector (7) with the bottom of the counterweight guide rail (5).

4. The mounting structure according to claim 1, characterized in that the machine room-less elevator further comprises a car guide rail (4) formed by a T-beam, the car guide rail having a bottom and a guide portion provided in the middle of the first surface of the bottom and perpendicular to the bottom, the second end (62) of the support beam (6) being connected to the bottom of the car guide rail (4) by a bolt, and the bottom of the car guide rail (4) being perpendicular to the bottom of the counterweight guide rail (5).

5. The mounting structure according to claim 2, wherein the connecting member (7) is supported on a top end face of the one fixing member (8).

6. The mounting structure according to claim 2, wherein the connecting member (7) is a bent plate including a first portion (71) and a second portion (72) bent with respect to the first portion, the first portion (71) of the bent plate being connected with the first end (61) of the support beam (6) by a bolt, the second portion (72) of the bent plate being detachably connected to the second surface of the bottom of the counterweight guide rail (5).

7. The mounting arrangement according to claim 3, characterized in that the clamping device (9) comprises a clamping piece (91) and a fastening piece (92) cooperating therewith, the clamping piece (91) comprising a clamping portion (911) and an extension portion (912), wherein the extension portion (912) passes through a hole in the connecting piece (7), and the clamping portion (911) cooperates with the respective fastening piece (92) to exert a clamping force on the bottom of the counterweight guide rail (5) and the connecting piece (7) to press the connecting piece (7) against the bottom of the counterweight guide rail (5).

8. The mounting structure according to claim 1, wherein the mounting structure (3) further comprises a protection plate disposed above the support beam (6).

9. Elevator without machine room, characterized in that it comprises a mounting structure according to any of claims 1-8.

10. The machine roomless elevator according to claim 9, characterized in that the machine roomless elevator functions as a jump-floor elevator.

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