An elevator machine room layout structure and an elevator system

Abstract

The present invention belongs to the field of elevators, and discloses an elevator machine room layout structure and an elevator system. The traction machine and the counterweight return pulley are both arranged on the upper end surface of the machine supporting beam, with a compact layout structure, saving the vertical space occupied by the separate arrangement of the counterweight return pulley. The counterweight guide pulley is connected to the machine supporting beam and is located below the traction machine. The central axis of the counterweight guide pulley is vertically arranged with the central axis of the counterweight return pulley, so that the rope winding method is compact. The steel wire rope is wound around the traction machine, the counterweight guide pulley and the counterweight return pulley, and the above arrangement method can also avoid the interference during the rope winding of the steel wire rope. The elevator system provided by the present invention adopts the above elevator machine room layout structure, with a compact layout structure, which can reduce the space occupied by the machine room in the depth direction of the hoistway and can be applicable to machine rooms with different depth dimensions.

Description

Technical Field

[0001] The present invention relates to the field of elevators, and in particular, to an elevator machine room layout structure and an elevator system. Background Art

[0002] According to the installation position of the driving host, elevators can be divided into machine-room elevators and machine-roomless elevators. In traditional machine-room elevators, the elevator machine room is generally arranged above the elevator running space, i.e., the hoistway, to provide a centralized space for placing main equipment such as the host that occupies space. The layout structure of the elevator machine room affects the size of the top-floor building space.

[0003] In the existing elevator machine room layout structure, the intervals between various devices such as the traction machine, the counterweight return pulley, and the counterweight guide pulley are relatively large, resulting in a relatively scattered layout structure of the machine room, occupying a large space in the depth direction of the hoistway. Summary of the Invention

[0004] The purpose of the present invention is to provide an elevator machine room layout structure and an elevator system, which can solve the problem that the elevator machine room occupies a large hoistway space, so that the layout structure of the elevator machine room is compact, facilitating on-site installation operations and saving elevator machine room space.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] An elevator machine room layout structure, comprising:

[0007] A machine supporting beam;

[0008] A traction machine, arranged on the upper end surface of the machine supporting beam;

[0009] A counterweight traction mechanism, comprising a counterweight guide pulley and a counterweight return pulley. The counterweight return pulley is arranged on the upper end surface of the machine supporting beam. The counterweight guide pulley is connected to the machine supporting beam and is located below the traction machine. The central axes of the counterweight guide pulley and the counterweight return pulley are perpendicularly arranged.

[0010] A steel wire rope, wound around the traction machine, the counterweight guide pulley, and the counterweight return pulley.

[0011] Further, it further comprises a counterweight rope head beam intersecting with the machine supporting beam, and a counterweight rope head plate is arranged on the counterweight rope head beam.

[0012] Further, it further comprises a car traction mechanism, and the car traction mechanism comprises a car return pulley and a car rope head plate, and both the car return pulley and the car rope head plate are arranged on the machine supporting beam.

[0013] Further, the steel wire rope is wound around the traction machine and is divided into a first connection end and a second connection end on both sides of the traction machine. The first connection end bypasses the counterweight traction mechanism and is fixedly connected to the counterweight rope head plate, and the second connection end bypasses the car traction mechanism and is fixedly connected to the car rope head plate.

[0014] Further, the counterweight traction mechanism further includes a first pulley and a second pulley, and the first pulley and the second pulley are arranged in parallel side by side at the top of the counterweight frame of the elevator.

[0015] Further, the first connection end starts from the traction machine, vertically downward bypasses the counterweight guide pulley, winds out from the inside to the outside of the first pulley, vertically upward winds out from the outside to the inside of the counterweight return pulley, vertically downward winds out from the inside to the outside of the second pulley, and vertically upward is fixedly connected to the counterweight rope head plate.

[0016] Further, the second connection end starts from the traction machine, bypasses the car return pulley and is fixedly connected to the car rope head plate.

[0017] Further, both the machine supporting beam and the counterweight rope head beam are H-shaped steel.

[0018] Further, it further includes a machine frame, the machine frame is arranged on the upper end surface of the machine supporting beam, and the traction machine and the counterweight return pulley are both arranged on the machine frame.

[0019] An elevator system includes the above elevator machine room layout structure.

[0020] Advantages of the present invention:

[0021] The present invention provides an elevator machine room layout structure and an elevator system. The traction machine and the counterweight return pulley are both arranged on the upper end surface of the machine supporting beam, and the layout structure is compact, saving the vertical space occupied by the separate arrangement of the counterweight return pulley. The counterweight guide pulley is connected to the machine supporting beam and is located below the traction machine. The central axis of the counterweight guide pulley is perpendicularly arranged with the central axis of the counterweight return pulley, making the rope winding method compact. The steel wire rope is wound around the traction machine, the counterweight guide pulley and the counterweight return pulley. The above layout method can also avoid the interference during the rope winding of the steel wire rope. The present invention also provides an elevator system, adopting the above elevator machine room layout structure, with a compact layout structure, which can reduce the space occupied by the machine room in the depth direction of the hoistway and can be applicable to machine rooms with different depth dimensions. Description of the drawings

[0022] Figure 1 is the front view of the elevator machine room layout structure provided by this embodiment;

[0023] Figure 2 is the top view of the elevator machine room layout structure provided by this embodiment;

[0024] Figure 3 is a side view of the elevator machine room layout structure provided by this embodiment;

[0025] Figure 4 is a schematic diagram of the rope winding method in the counterweight traction mechanism provided by this embodiment.

[0026] In the figure:

[0027] 1. Traction machine; 3. Counterweight frame; 5. Machine supporting beam; 6. Counterweight rope head beam; 7. Machine frame;

[0028] 21. Counterweight guide pulley; 22. First pulley; 23. Second pulley; 24. Counterweight return pulley; 25. Counterweight rope head plate;

[0029] 41. Car return pulley; 42. Car rope head plate. Detailed implementation manners

[0030] The following details the embodiments of the present invention. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar components or components with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0031] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. It can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the description of the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature is at a lower horizontal height than the second feature.

[0033] The following further illustrates the technical solution of the present invention in conjunction with the accompanying drawings and through specific implementation manners.

[0034] An embodiment of the present invention provides an elevator machine room layout structure, which can make the layout inside the elevator machine room more compact, the space is reasonably utilized, and the occupied hoistway space is saved.

[0035] As Figures 1 to 3 shown, the machine room is located above the elevator hoistway, and the elevator car and the counterweight frame 3 are both located in the elevator hoistway. A traction machine 1, a counterweight traction mechanism, a car traction mechanism and a steel wire rope are arranged in the machine room. Among them, the steel wire rope is wound around the traction machine 1, the counterweight traction mechanism and the car traction mechanism, and the traction machine 1 is used to provide power, and the power drives the elevator car and the counterweight frame 3 to move relatively through the steel wire rope.

[0036] In this embodiment, the traction machine 1 adopts a permanent magnet synchronous main machine. Compared with the traditional worm and worm gear traction machine, the supporting rope gripper is cancelled, and the cost performance is higher.

[0037] The specific layout of each mechanism is as follows:

[0038] A machine supporting beam 5 and a counterweight rope head beam 6 perpendicular to the machine supporting beam 5 are arranged in the machine room to support the traction machine 1 and the components of each mechanism.

[0039] The counterweight traction mechanism includes a counterweight deflecting sheave 24 and a counterweight guide sheave 21. The steel wire rope successively winds around the counterweight guide sheave 21 and the counterweight deflecting sheave 24 from one end of the traction machine 1 to drive the counterweight frame 3 to move in the vertical direction. The steel wire rope passes through the counterweight guide sheave 21, so that the steel wire rope drives the counterweight frame 3 to move up and down along the set guide rail in the elevator hoistway. By winding the counterweight deflecting sheave 24, the winding direction of the steel wire rope can be changed and the required elevator suspension ratio can be finally obtained.

[0040] The counterweight traction mechanism is close to the wall on one side inside the machine room. Specifically, the traction machine 1 and the counterweight deflecting sheave 24 are both arranged on the upper end surface of one end of the machine supporting beam 5. The counterweight guide sheave 21 is connected to the machine supporting beam 5 and is located below the traction machine 1. In the prior art, the counterweight deflecting sheave 24 is separately arranged on the counterweight rope head beam 6 and far away from the traction machine 1. Compared with the prior art, this layout reduces the vertical space occupied by the counterweight deflecting sheave 24.

[0041] More specifically, the counterweight deflecting sheave 24 is located between the side wall of the machine room and the traction machine 1, and the central axis of the counterweight deflecting sheave 24 is perpendicular to the side wall. The counterweight guide sheave 21 is located below the counterweight deflecting sheave 24, and the central axis of the counterweight guide sheave 21 is perpendicularly arranged with the central axis of the counterweight deflecting sheave 24, so as to avoid the mutual interference between the steel wire ropes wound around the counterweight guide sheave 21 and the counterweight deflecting sheave 24, and the rope winding method is more compact. In addition, the central axis of the counterweight guide sheave 21 is parallel to the central axis of the traction machine 1, and the orthographic projections of the counterweight guide sheave 21 and the traction machine 1 on the plane partially overlap. The above layout is arranged compactly, maximizes the use of space, and reduces the occupation of vertical space.

[0042] The counterweight frame 3 is located in the elevator hoistway and is correspondingly arranged below the counterweight traction mechanism in the machine room. At the top of the counterweight frame 3, a first pulley 22 and a second pulley 23 are arranged in parallel side by side. On the one hand, the steel wire rope realizes the traction effect on the counterweight frame 3 by winding around the first pulley 22 and the second pulley 23. On the other hand, the steel wire rope obtains the required suspension ratio of the elevator by winding around the first pulley 22, the counterweight return pulley 24 and the second pulley 23.

[0043] The car traction mechanism includes a car return pulley 41. The car return pulley 41 is arranged at the central position of the machine support beam 5 along the length direction. The central axis of the car return pulley 41 is perpendicular to the extension direction of the length of the machine support beam 5. The car return pulley 41 is used to change the winding direction of the steel wire rope in the car traction mechanism.

[0044] The car traction mechanism further includes a car rope socket plate 42. The car rope socket plate 42 is arranged on the machine support beam 5 and is located between the wall and the car return pulley 41, and is used to fix the end of the steel wire rope wound out of the car traction mechanism.

[0045] A counterweight rope socket plate 25 is arranged on the counterweight rope socket beam 6 and is used to fix the end of the steel wire rope wound out of the car traction mechanism.

[0046] Furthermore, both the machine support beam 5 and the counterweight rope socket beam 6 are H-shaped steel, which can meet the strength requirements. Compared with the commonly used I-shaped steel and channel steel, the model is smaller, the processing and transportation costs are lower, and the cost performance is high. In this embodiment, the machine support beam 5 includes two H-shaped steels, and the two H-shaped steels are arranged in parallel at intervals. The counterweight guide pulley 21 is clamped between the two H-shaped steels. The counterweight guide pulley 21 is installed on the bottom end surface of the H-shaped steel. The car return pulley 41 is installed on the upper end surface of the H-shaped steel and is located between the two H-shaped steels, so that the layout structure is compact and space is saved. The counterweight rope socket beam 6 also includes two H-shaped steels, and the two H-shaped steels are arranged in parallel at intervals, with good load-bearing performance and safe and firm use.

[0047] Furthermore, a machine frame 7 is installed on the upper end surface of one end of the machine support beam 5. The traction machine 1 and the counterweight return pulley 24 are both arranged on the machine frame 7. The counterweight return pulley 24 and the traction machine 1 are placed on the same machine frame 7, which saves space and makes the on-site installation faster.

[0048] Based on Figures 1 to 3 the machine room layout structure shown in Figure 4 shows the path of the steel wire rope winding around the counterweight traction mechanism. The steel wire rope winds around the traction machine 1 and is divided into a first connection end and a second connection end on both sides of the traction machine 1. The first connection end bypasses the counterweight traction mechanism and is fixedly connected to the counterweight rope socket plate 25, and the second connection end bypasses the car traction mechanism and is fixedly connected to the car rope socket plate 42. Different from the traditional suspension winding method with a traction ratio of 4:1, the suspension winding method of this embodiment is as follows:

[0049] The first connection end starts from the traction machine 1, vertically goes downward and bypasses the counterweight guide wheel 21, winds out from the inner side to the outer side of the first pulley 22, vertically goes upward and winds in from the outer side to the inner side of the counterweight return pulley 24, vertically goes downward and winds out from the inner side to the outer side of the second pulley 23, and is fixedly connected to the counterweight rope head plate 25 vertically upward;

[0050] The second connection end starts from the traction machine 1, bypasses the car return pulley 41 and is fixedly connected to the car rope head plate 42.

[0051] In this rope winding mode, the first connection end winds out from the counterweight guide wheel 21, vertically goes downward and winds into the first pulley 22 at the center of the counterweight frame 3, and the traction ratio is 4:1, which creates favorable conditions for reducing the depth of the hoistway occupied by the elevator car and increasing the gauge of the counterweight frame 3.

[0052] The principle of elevator operation is as follows: When the traction machine 1 operates, the traction wheel of the traction machine 1 rotates. When the traction wheel rotates clockwise, the second connection end led out from the traction wheel drives the elevator car to move upward, and the counterweight frame 3 moves downward to realize the ascent of the elevator car; on the contrary, when the traction wheel rotates counterclockwise, the first connection end led out from the traction wheel drives the counterweight frame 3 to move upward, and the elevator car moves downward, finally realizing the descent of the elevator car.

[0053] This embodiment also provides an elevator system, including the above elevator machine room layout structure. This elevator system not only has a compact layout structure, saves space, but also meets the needs of the current society for arranging elevator structures in more small-sized spaces.

[0054] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, there are various changes and modifications to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An elevator machine room layout structure, characterized in that, comprising: a machine supporting beam (5); a traction machine (1), arranged on the upper end surface of the machine supporting beam (5); a counterweight traction mechanism, including a counterweight guide pulley (21) and a counterweight return pulley (24), the counterweight return pulley (24) is arranged on the upper end surface of the machine supporting beam (5), the counterweight guide pulley (21) is connected to the machine supporting beam (5) and is located below the traction machine (1), the central axes of the counterweight guide pulley (21) and the counterweight return pulley (24) are vertically arranged, the central axis of the counterweight guide pulley (21) is parallel to the central axis of the traction machine (1), and the orthographic projections of the counterweight guide pulley (21) and the traction machine (1) on a plane partially overlap; a steel wire rope, wound around the traction machine (1), the counterweight guide pulley (21) and the counterweight return pulley (24).

2. The elevator machine room layout structure according to claim 1, characterized in that, further comprising a counterweight rope head beam (6) intersecting with the machine supporting beam (5), and a counterweight rope head plate (25) is arranged on the counterweight rope head beam (6).

3. The elevator machine room layout structure according to claim 2, characterized in that, further comprising a car traction mechanism, the car traction mechanism includes a car return pulley (41) and a car rope head plate (42), and both the car return pulley (41) and the car rope head plate (42) are arranged on the machine supporting beam (5).

4. The elevator machine room layout structure according to claim 3, characterized in that, the steel wire rope is wound around the traction machine (1) and is divided into a first connection end and a second connection end on both sides of the traction machine (1), the first connection end bypasses the counterweight traction mechanism and is fixedly connected to the counterweight rope head plate (25), and the second connection end bypasses the car traction mechanism and is fixedly connected to the car rope head plate (42).

5. The elevator machine room layout structure according to claim 4, characterized in that, the counterweight traction mechanism further includes a first pulley (22) and a second pulley (23), and the first pulley (22) and the second pulley (23) are arranged in parallel side by side on the top of the counterweight frame (3) of the elevator.

6. The elevator machine room layout structure according to claim 5, characterized in that, the first connection end starts from the traction machine (1), vertically bypasses the counterweight guide pulley (21), winds out from the inner side to the outer side of the first pulley (22), vertically winds in from the outer side to the inner side of the counterweight return pulley (24), winds out from the inner side to the outer side of the second pulley (23) vertically, and is fixedly connected to the counterweight rope head plate (25) vertically upward.

7. The elevator machine room layout structure according to claim 4, characterized in that, the second connection end starts from the traction machine (1), bypasses the car return pulley (41) and is fixedly connected to the car rope head plate (42).

8. The elevator machine room layout structure according to claim 2, characterized in that, both the machine supporting beam (5) and the counterweight rope head beam (6) are H-shaped steel.

9. The elevator machine room layout structure according to any one of claims 1-8, characterized in that, it further includes a frame (7), the frame (7) is arranged on the upper end surface of the machine placing beam (5), and the traction machine (1) and the counterweight deflecting sheave (24) are both arranged on the frame (7).

10. An elevator system, characterized in that, it includes the elevator machine room layout structure according to any one of claims 1-9.

Images