WO2012024929A1 - Cowl for high-speed elevator cage - Google Patents

Abstract

A cowl for a high-speed elevator cage, which belongs to the technical field of electric lifting devices, comprises a rectangular upper cover plate (1) from the four edges of which a front cover plate (2), a back cover plate (3), a left cover plate (4) and a right cover plate (5) are extended downwards respectively. The upper edges of the back cover plate (3), the left cover plate (4) and the right cover plate (5) are transiently connected to the upper cover plate (1) through arc segments (6) respectively, while the lower edges have outward vertical folding edges (8) respectively, and the interior side faces are fixedly connected with the arc segments (6) and the upper cover plate (1) through a set of space-arranged reinforcement plates (7) in the form of reinforced rib construction, respectively. During installation, said cowl is fixed on the top of the elevator cage. The arc segments (6) can guide air circulation, and have the effects of reducing the wind resistance and protecting the cage during the high-speed movement of the elevator cage. The reinforcement plates (7) form the reinforced ribs for the back cover plate (3), the left cover plate (4), the right cover plate (5) and the arc segments (6), which can effectively prevent the cowl from being distorted during the high-speed movement of the elevator cage in the wellhole, and greatly reduce the elevator cage's interior vibration and noise.

Description

 High-speed elevator car fairing Technical field

 The invention relates to a fairing for reducing air resistance, in particular to a high-speed elevator car fairing, belonging to the technical field of electric lifting devices.

Background technique

According to the applicant's understanding, when the high-speed elevator runs in the hoistway, the elevator car moves at a faster speed, so it is more affected by harmful factors such as pneumatic power, pneumatic heating and sound vibration than ordinary elevators. Moreover, the top of the existing elevator car is uneven. When the elevator runs at high speed, the air that reaches the top of the car is not discharged in time, hindering the air that arrives later, and will form a strong wind resistance, which is not only a test for the traction ability. And cause energy waste.

technical problem

The technical problem to be solved by the present invention is to provide a high-speed elevator car fairing capable of reducing wind resistance and reducing noise when a high-speed elevator car is operated, thereby contributing to ensuring the running performance of the high-speed elevator.

Technical solution

The high-speed elevator car fairing of the present invention comprises a rectangular upper cover plate, the four sides of the upper cover plate respectively extending downwardly from the front cover plate, the rear cover plate, the left cover plate and the right cover plate; the rear cover plate and the left cover The upper side of the plate and the right cover plate are respectively connected with the upper cover plate through a circular arc section, and the lower sides respectively have outwardly facing vertical folded edges, and the inner side faces are respectively strengthened by a set of spaced apart reinforcing plates and arc segments and upper cover plates. The rib structure is fixed.

When installed, the fairing of the present invention is fixed to the top of the elevator car. The arc segment can guide the air circulation, and when the elevator car runs at a high speed, it can reduce the wind resistance and protect the car body. The reinforcing plate forms a reinforcing rib for the rear cover plate, the left cover plate, the right cover plate and the circular arc section, which can effectively prevent the deformation of the fairing when the elevator car runs at a high speed in the hoistway, and significantly reduce the vibration inside the elevator car. And noise.

In order to facilitate the inspection and maintenance of the car top component, an inspection window is opened on the upper cover panel, and the inspection window hinges the cover panel. In this way, when maintenance is required, the cover can be opened, which is very convenient.

DRAWINGS

1 is a front perspective view showing a first embodiment of the present invention;

Figure 2 is a perspective view showing the reverse structure of the embodiment of Figure 1.

FIG. 3 is a schematic perspective view of a second embodiment of the present invention.

Embodiments of the invention

Embodiment 1

As shown in FIG. 1 and FIG. 2, the fairing for the high-speed elevator car of the present embodiment includes a rectangular upper cover plate 1, and the front cover plate 2, the rear cover plate 3, and the left cover are respectively extended downward on the four sides of the upper cover plate 1 respectively. Plate 4 and right cover plate 5. The rear cover panel 3, the left cover panel 4 and the right cover panel 5 are respectively connected to the upper cover panel 1 through a circular arc segment 6 transition. Further, the lower side of the rear cover panel 3, the left cover panel 4, and the right cover panel 5 respectively have outer flanges 8 for interconnecting the tops of the elevator cars, and at the same time, rigidity can be improved.

The rear cover panel 3, the left cover panel 4, and the right cover panel 5 may also be transitioned through the transition section 6, respectively, and connected to the upper cover panel 1 by bolt fasteners to form a box-like structure.

In order to enhance the rigidity and reduce the vibration and noise, the inner side surfaces of the rear cover panel 3, the left cover panel 4, and the right cover panel 5 are respectively connected with a plurality of spaced-apart reinforcing plates 7 to constitute a rib structure. The reinforcing plate 7 is shaped as a rectangle having a chamfered surface whose surface is perpendicular to the upper cover plate 1 and one of the rear cover plate 3, the left cover plate 4 and the right cover plate 5. The chamfer is welded to the arc segment 6, and the right-angled edges at both ends of the chamfer are respectively welded to the upper cover plate 1 and the rear cover plate 3, the left cover plate 4, and the right cover plate 5.

Two inspection windows are opened on the upper cover panel 1, and each inspection window is hinged with a cover plate 9, thereby facilitating maintenance.

Embodiment 2

The high-speed elevator car fairing of this embodiment is shown in FIG. 3, and the basic structure is the same as that of the first embodiment. The difference is that the reinforcing plate 7 is an arc panel. After the installation, an arc edge becomes a downward opening, and the remaining edges are respectively It is welded to one of the upper cover plate 1, the circular arc segment 6, and the rear cover plate 3, the left cover plate 4, and the right cover plate 5, and has a bird's nest shape.

In this way, not only the sharp corners and sharp edges of the rectangular reinforcing plate in the first embodiment can be avoided, thereby ensuring the safety during maintenance, and the semi-closed arch structure is formed in the same manner as the opening-down swallow-shaped reinforcing plate. More ideal rigidity and noise reduction, not only can reduce the air resistance of the car at high speed, but also significantly reduce noise and vibration.

More specifically, a semi-closed arc and a quarter closed arc reinforcing plate are respectively disposed at a middle portion and both ends of the rear cover panel 3, and the span of the central semi-closed arc reinforcing plate has a span 2L equal to one quarter of the end portion The spacing of the closed arcs is twice the span of the end quarter of the closed arc in the same direction. A semi-closed arc is respectively disposed in the middle of the left cover plate 4 and the right cover plate 5, and the span of the central semi-closed arc reinforcing plate has a span 2W equal to twice the distance from the end quarter closed arc and is one quarter of the end The closed arc has the same direction span and twice the distance from the front cover 2. Tests have shown that the vibration and noise reduction effect is the best at this time.

It should be noted that the above embodiments are non-limiting. Other than the above-described embodiments, the present invention may have other embodiments. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present invention.

Claims (7)

A high-speed elevator car fairing, comprising: a rectangular upper cover plate, wherein four sides of the upper cover plate respectively extend downwardly from the front cover plate, the rear cover plate, the left cover plate and the right cover plate; The upper edges of the plate, the left cover plate and the right cover plate are respectively connected to the upper cover plate by a circular arc segment, and the lower sides respectively have outwardly facing vertical folded edges, and the inner side faces respectively pass through a set of spaced reinforcing plates and arc segments and upper portions The cover plate is fixed by a rib structure. The high-speed elevator car fairing according to claim 1, wherein an inspection window is provided on the upper cover panel, and the inspection window hinges the cover panel on one side. The high-speed elevator car fairing according to claim 2, wherein the rear cover panel, the left cover panel and the right cover panel are respectively transitioned through the transition section, and are connected to the upper cover panel by bolt fasteners to form a box. Structure. A high-speed elevator car fairing according to claim 3, wherein said reinforcing plate has a rectangular shape with a chamfered surface, the surface of which is perpendicular to the upper cover plate and the rear cover plate, the left cover plate and the right One of the hoods. The high-speed elevator car fairing according to claim 4, wherein the chamfer is welded to the arc segment, and the right-angled edges of the two ends of the chamfer are respectively the upper cover plate and the rear cover plate and the left side. One of the cover plate and the right cover plate is welded. The high-speed elevator car fairing according to claim 3, wherein the reinforcing plate is an arc panel, and an arc edge becomes a downward opening after installation, and the remaining edges are respectively associated with the upper cover plate, the arc segment and the rear One of the cover plate, the left cover plate and the right cover plate is welded and has a bird's nest shape. The high-speed elevator car fairing according to claim 6, wherein a central portion and two ends of the rear cover panel are respectively provided with a semi-closed arc and a quarter closed arc reinforcing plate, wherein the middle cover plate is centrally The span of the semi-closed arc stiffener is equal to the spacing of the closed arc of the end quarter and is twice the span of the end quarter of the closed arc in the same direction; the left and right panels are respectively disposed in the middle a semi-closed arc, the span of the left or right shroud in the middle of the semi-closed arc stiffener is equal to twice the distance from the end quarter of the closed arc, and the distance from the front shroud and its end One quarter of the closed arc is twice the span of the same direction.

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