CN113666225A

CN113666225A - Elevator structure without machine room

Info

Publication number: CN113666225A
Application number: CN202110989078.0A
Authority: CN
Inventors: 谭晓亨; 莫振锋; 黄敏冬
Original assignee: Hitachi Elevator China Co Ltd
Current assignee: Hitachi Elevator China Co Ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2021-11-19

Abstract

A machine room-free elevator structure relates to the technical field of elevators, and comprises a well, wherein a car system, a counterweight system, a traction machine and a steel wire rope system are arranged in the well, a hollowed-out part is arranged on the side wall of the top of the well, the hollowed-out part and the well form a 7-shaped well structure, the traction machine is fixedly installed in the hollowed-out part, a traction wheel of the traction machine extends out of the well, and the traction machine tows the car system and the counterweight system through the steel wire rope system.

Description

Elevator structure without machine room

Technical Field

The invention relates to the technical field of elevators, in particular to a machine room-less elevator structure.

Background

The elevator is used as the most important transportation means for vertical transportation in the building, and along with the development and construction of cities, the elevator shaft has higher and higher requirements on the size requirement.

For a machine room-less elevator, a traction machine is generally placed at a position between the top of a hoistway, a side wall of a car and a side wall of the hoistway, and in the prior art, a traditional straight-bar elevator hoistway is generally adopted, so that the arrangement of the traction machine in the hoistway can greatly limit the reduction of the width dimension of the whole hoistway, the utilization area of a building is reduced, and the relative cost is increased.

In addition, for the conventional machine room-less elevator, the distance between the side wall of the car and the side wall of the hoistway is often larger due to the arrangement of the traction machine in the hoistway, and when the distance is larger than a limit value required by national standards, a higher car top guardrail needs to be adopted, so that the height of the top layer of the hoistway is greatly increased, and finally, the building cost is increased. With the promulgation and execution of the national standard of the latest elevator, the limit value becomes smaller, and the traditional elevator without the machine room can only adopt a higher car top guardrail, so that the product competitiveness is reduced.

Disclosure of Invention

The invention aims to solve the technical defects that the arrangement of a machine room-less elevator traction machine in a hoistway in the prior art can greatly limit the reduction of the width dimension of the whole hoistway, so that the utilization area of a building is reduced, the height of the top layer of the hoistway is greatly increased, and the relative cost is increased.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the utility model provides a no computer lab elevator structure, includes the well, be provided with car system, to heavy system, hauler and wire rope system in the well, well top lateral wall is provided with fretwork portion, fretwork portion forms the well structure of "7" style of calligraphy with the well, hauler fixed mounting in the fretwork portion and the hauler the driving sheave of hauler stretch out in the well, the hauler hauls car system, to heavy system through wire rope system.

Further, the car system includes car, car diverting pulley and the symmetry sets up the car guide rail in the well both sides, the car with car guide rail swing joint, car diverting pulley sets up both sides around both sides car guide rail.

Further, the counterweight system comprises a counterweight, a counterweight diverting pulley and a counterweight guide rail, wherein the two ends of the counterweight are connected with the counterweight guide rail in a sliding manner, the counterweight guide rail is arranged in the hoistway, the counterweight diverting pulley is arranged at the top of the counterweight, and the counterweight diverting pulley is in transmission connection with the traction machine through a steel wire rope system.

Further, the wire rope system includes wire rope, car fag end and to heavy fag end, the car fag end is fixed to be set up in car guide top one side, to heavy fag end fixed set up on to heavy top well roof beam.

Furthermore, the hollow part is of a rectangular concave structure, a bearing ring beam is fixedly arranged at the bottom in the hollow part, and the traction machine is fixedly arranged on the bearing ring beam.

Furthermore, the counterweight diverting pulley and the traction sheave are arranged in a straight line in a top view, and the projection of the traction sheave and the projection of the counterweight diverting pulley are not overlapped with each other.

Furthermore, rope outlet points at two ends of the traction machine are respectively arranged at two sides of the car guide rail.

Compared with the prior art, the invention has the following beneficial effects:

according to the elevator without the machine room and the shaft thereof, the 7-shaped special-shaped shaft is adopted, so that the placement of the traction machine on the side wall of the shaft does not influence the width dimension of the elevator shaft, and meanwhile, the ring beam at the top of the shaft is adopted for bearing the elevator, so that the whole arrangement of the elevator is more flexible, and the cost is reduced. Because counterweight frame and car bottom diverting pulley branch locate car and counterweight guide rail both sides, the play rope of counterweight and car diverting pulley does not influence each other, the width of well only receives counterweight frame thickness and moving part safe distance influence, and can accomplish widest to the counterweight guide rail apart from the well as far as possible, and the extreme height of going upward to the counterweight frame is higher than traditional arrangement, the extreme height can be accomplished to the height of event counterweight frame, the event can be done to the thickness of counterweight frame minimum, the event can realize the utmost point of well to little, improve the utilization ratio of building.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a layout of a machine roomless elevator hoistway of the present invention;

fig. 2 is a front cross-sectional view of the top layer of the counterweight of the present invention;

fig. 3 is a front cross-sectional view of the car of the present invention at the top floor;

fig. 4 is a side cross-sectional view of the top layer with a counterweight of the present invention.

In the figure: 1. the elevator comprises a hoistway, 2 parts of a car, 3 parts of a hollow part, 4 parts of a traction machine, 5 parts of a counterweight, 6 parts of a counterweight diverting pulley, 7 parts of a counterweight guide rail, 8 parts of a car diverting pulley, 9 parts of a car guide rail, 10 parts of a bearing ring beam, 11 parts of a steel wire rope, 12 parts of a car top guardrail, 13 parts of a car rope head and 14 parts of a counterweight rope head.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-4, a machine room-less elevator structure comprises a well 1, a car system, a counterweight system, a traction machine 4 and a steel wire rope system are arranged in the well 1, a hollowed-out portion 3 is arranged on the side wall of the top of the well 1, the hollowed-out portion 3 and the well 1 form a 7-shaped well structure, the traction machine 4 is fixedly installed in the hollowed-out portion 3, a traction wheel of the traction machine 4 extends out of the well 1, and the traction machine 4 tows the car system and the counterweight system through the steel wire rope system.

Refer to the no computer lab elevator well of figure 1 and arrange and to see out, no computer lab elevator includes car system, to heavy system, hauler and wire rope system, car system includes car, car diverting pulley and car guide rail, to heavy system including to heavy, to heavy diverting pulley and to heavy guide rail, wire rope system includes wire rope, car fag end and to heavy fag end, no computer lab elevator is installed in the special-shaped well of "7" style of calligraphy. Referring to fig. 1, in combination with the arrangement of the traction machine, the counterweight diverting pulley can be arranged in parallel with the counterweight without being arranged obliquely, so that the connecting structure of the counterweight diverting pulley and the counterweight is simpler and the cost is lower.

Referring to fig. 2, it can be known that, due to the hollow-out portion, the width of the hoistway at the top of the hoistway where the traction machine is installed is greater than the widths of the hoistways at other positions of the hoistway, so that the traction machine can be installed in the hollow-out space at the top of the hoistway, and thus, the restriction factor that the width of the hoistway is small is not generated, and the situation that the width of the whole hoistway needs to be increased due to the arrangement of the traction machine is avoided, and finally, the construction cost is greatly reduced.

Specifically, as shown in the figure, the car system includes car 2, car diverting pulley 8 and the symmetry sets up the car guide rail 9 in 1 both sides of well, car 2 with car guide rail 9 swing joint, car diverting pulley 8 sets up both sides around the car guide rail 9 of both sides.

Specifically, as shown in the figure, the counterweight system includes counterweight 5, counterweight diverting pulley 6 and counterweight guide rail 7, the both ends of counterweight 5 with counterweight guide rail 7 sliding connection, counterweight guide rail 7 set up in well 1, counterweight diverting pulley 6 set up in counterweight 5 top, counterweight diverting pulley 6 passes through the wire rope system and is connected with the transmission of hauler 4. Specifically, as shown in the figure, the wire rope system includes wire rope 11, car fag end 13 and to heavy fag end 14, car fag end 13 is fixed to be set up in car guide top one side, to heavy fag end 14 fixed set up on to heavy top well roof beam.

Specifically, as shown in the figure, the hollow portion 3 is a rectangular recessed structure, a bearing ring beam 10 is fixedly arranged at the bottom in the hollow portion 3, and the traction machine 4 is fixedly arranged on the bearing ring beam 10.

Specifically, as shown in the figure, the counterweight return sheave 6 and the traction sheave are arranged in a line when viewed from above, and the projection of the traction sheave and the projection of the counterweight return sheave do not coincide with each other.

Referring to fig. 4 and 1, a bearing ring beam is arranged in a hollow space at the top of the special-shaped hoistway, and the traction machine is arranged on the bearing ring beam, namely, building bearing is adopted instead of the bearing of a counterweight guide rail which is usually adopted by a traditional elevator without a machine room, and the counterweight guide rail does not need to be used for bearing the traction machine, so that the strength of the counterweight guide rail is reduced, a guide rail or a hollow guide rail with smaller size can be adopted, and the guide rail cost is greatly reduced; because the traction machine adopts the building ring beam for bearing, the arrangement of the traction machine in the hoistway is not limited by elevator components such as a counterweight guide rail and a car guide rail, and the arrangement mode can be more flexible. The hoistway layout shown in fig. 1 is one of the preferred layouts, in which the counterweight diverting pulley and the traction sheave are arranged in a line, and the projections of the traction sheave and the counterweight diverting pulley are not overlapped, so that the layout of the traction machine does not affect the upward space of the counterweight, i.e., the traction machine does not need to be installed at a higher position in order to make room for the upward space of the counterweight, i.e., the height of the hoistway ceiling is reduced.

Referring to fig. 1, since the counterweight diverting pulley and the traction sheave are arranged in a line, the rope guiding point of the traction sheave and the car diverting pulley is not overlapped with the projection of the counterweight, so that a special-shaped counterweight block is not needed, and the cost of the counterweight block is reduced. Because the rope outlet of the counterweight and the car diversion sheave is not influenced each other, the width of the shaft is only influenced by the thickness of the counterweight frame and the safety distance of the moving part, the counterweight guide rail can be widest as far as the depth of the shaft, and the ascending limit height of the counterweight frame is higher than that of the traditional arrangement, so that the height of the counterweight frame can be limited when the top layer height is not influenced, the thickness of the counterweight frame can be minimized, the minimum of the shaft can be realized, and the utilization rate of the building is improved.

Furthermore, rope outlet points at two ends of the traction machine 4 are respectively arranged at two sides of the car guide rail.

Referring to fig. 3, due to the adoption of the shaft shaped like the Chinese character '7', the distance between the side wall of the lift car at the installation side of the traction machine and the side wall of the shaft is made small, so that even if the more strict requirement on the height of the lift car top guardrail is based on the latest national standard, the shorter lift car top guardrail can still be adopted, the height of the top layer of the shaft can be reduced, and the construction cost is further reduced.

According to the elevator without the machine room and the shaft thereof, the 7-shaped special-shaped shaft is adopted, so that the placement of the traction machine on the side wall of the shaft does not influence the width dimension of the elevator shaft, and meanwhile, the ring beam at the top of the shaft is adopted for bearing the elevator, so that the whole arrangement of the elevator is more flexible, and the cost is reduced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a no computer lab elevator structure, includes well (1), its characterized in that, be provided with car system, heavy system, hauler (4) and wire rope system in well (1), well (1) top lateral wall is provided with fretwork portion (3), fretwork portion (3) and well (1) form the well structure of "7" style of calligraphy, hauler (4) fixed mounting be in fretwork portion (3) and the driving sheave of hauler (4) stretch out in well (1), hauler (4) are hauled car system, heavy system through wire rope system.

2. The machine room-less elevator structure according to claim 1, wherein the car system comprises a car (2), a car diverting pulley (8), and car guide rails (9) symmetrically arranged at both sides of the hoistway (1), the car (2) is movably connected with the car guide rails (9), and the car diverting pulley (8) is arranged at the front and rear sides of the car guide rails (9) at both sides.

3. The machine room-less elevator structure according to claim 2, wherein the counterweight system comprises a counterweight (5), a counterweight diverting pulley (6) and a counterweight guide rail (7), two ends of the counterweight (5) are slidably connected with the counterweight guide rail (7), the counterweight guide rail (7) is arranged in the hoistway (1), the counterweight diverting pulley (6) is arranged at the top of the counterweight (5), and the counterweight diverting pulley (6) is in transmission connection with the traction machine (4) through a steel wire rope system.

4. A machine room-less elevator structure according to claim 3, characterized in that the wire rope system comprises wire ropes (11), a car rope head (13), and a counterweight rope head (14), the car rope head (13) is fixedly arranged on one side of the top of the car guide rail, and the counterweight rope head (14) is fixedly arranged on the hoistway beam on the top of the counterweight.

5. The elevator structure without the machine room according to claim 4, wherein the hollow part (3) is a rectangular concave structure, a bearing ring beam (10) is fixedly arranged at the bottom in the hollow part (3), and the traction machine (4) is fixedly arranged on the bearing ring beam (10).

6. Elevator structure without machine room according to claim 5, characterized in that the counterweight diverting pulley (6) is in line with the traction sheave in a top view, and the projection of the traction sheave and the projection of the counterweight diverting pulley do not coincide with each other.

7. The elevator structure without machine room according to claim 6, characterized in that the rope outlet points at both ends of the traction machine (4) are respectively arranged at both sides of the car guide rail.