CN214087224U - Arch-shaped upper beam of elevator with ultra-large load - Google Patents

Abstract

The utility model discloses an arch type upper beam of an elevator with a super large load, which is characterized by comprising two arch plate beams which are arranged in parallel, wherein the upper parts of the arch plate beams are of arc structures with high ends and concave centers, two return rope wheels are arranged in a space formed between the two arch plate beams, and a middle reinforcement body is arranged according to the arc trend of the arch plate beams; the return rope wheels are positioned at two ends of the arched plate beam and are positioned in the range of 1/4 of the total length L of the arched plate beam; the arch height and arch width ratio of the arched plate girder is within L/9-L/12. Compared with the traditional manufacturing method, the arch-shaped upper beam not only has better rigidity and strength capability, so that the upper beam structure is lightened, but also is beneficial to obtaining and processing raw materials, the structure is simple and reasonable, the arch-shaped upper beam is particularly suitable for cars with large loads and large areas, the whole structure is delicate, and the appearance is attractive.

Description

Arch-shaped upper beam of elevator with ultra-large load

Technical Field

The utility model relates to an elevator structure technique, especially an arch form upper beam of super large load elevator.

Background

For the upper beam of the top-hung goods elevator, the lower tonnage person mostly uses the sheet metal parts which have flexible structural design but are more complex to process; the larger tonnage is formed by directly cutting and splicing the ready-made standard section steel, and the steel plate with the standard thickness is used for locally reinforcing the structure of the steel plate. For example, patent publication No. CN106044482A discloses a car elevator upper beam structure, which includes an upper beam main body, the upper beam main body adopts a plate-shaped structure, and includes a first plate and a second plate that are integrally formed and vertically arranged, and a connecting plate that functions as a reinforcing rib is arranged between the first plate and the second plate. For example, patent publication No. CN104555651A discloses an elevator upper beam, which includes two symmetrically arranged strip channel steels with outward channel shapes, the upper end surfaces of two sides of two channel steels are connected together at least through a shoe guide plate, and the inner sides of two ends of two channel steels are respectively connected with an upper beam plate body vertically arranged. And so on. The design schemes can be limited to 10-ton load-carrying elevators in most cases, and the design requirements for elevators with larger tonnage can only be barely met, even the design is extremely easy. On one hand, the large-tonnage freight elevator has clear requirements on the self weight of the lift car due to the traction force of the elevator and the limitation of a safety tongs technology; on the other hand, because of the increase of the design load, the use number of the section steel types and materials is increased at a glance, the self weight of the elevator car is increased correspondingly, the design and manufacturing cost is also increased greatly, in addition, the use area of the elevator car is increased correspondingly along with the increase of the design load of the elevator, the span of the upper beam is correspondingly lengthened, and finally the problem of insufficient rigidity is caused.

Disclosure of Invention

The utility model aims at solving the above problem, provide an arch form upper beam of super large load elevator, under the condition of less materials relatively, it has better rigidity and intensity to make the upper beam structure have the lightweight, characteristics such as suitability is strong.

The above technical problem of the present invention can be solved by the following technical solutions: an arch-shaped upper beam of an elevator with a super large load is characterized by comprising two arch plate beams which are arranged in parallel, wherein the upper parts of the arch plate beams are of arc structures with high two ends and concave middle parts; the return rope wheels are positioned at two ends of the arched plate beam and are positioned in the range of 1/4 of the effective span L of the arched plate beam; the arch height and arch width ratio of the arched plate girder is within L/9-L/12.

In the foregoing arched upper beam of an elevator with an extra large load, preferably, the middle reinforcement body includes a double-spliced plate located between the two arched plate beams and arranged perpendicular to the arched plate beams, and a special-shaped reinforcement plate connected between the double-spliced plate along the arc-shaped trend of the arched plate beams.

In the foregoing arched upper beam for an elevator with a very large load, preferably, the middle reinforcement further includes a rectangular reinforcing plate connected between the double-spliced plates.

In the arch type upper beam of the elevator with the ultra-large load, the return rope wheel is preferably fixed with the arch plate beam through the axle backing plate assembly, the axle backing plate assembly comprises a horizontal backing plate and reinforcing ribs which are distributed at two ends of the horizontal backing plate and tightly attached to the outer side of the arch plate beam.

In the arch-shaped upper beam of the elevator with the ultra-large load, preferably, the upper side of the wheel shaft of the return rope wheel is provided with a chord section, and the wheel shaft is positioned on the bottom surface of the horizontal base plate through the chord section and is fixed with the horizontal base plate through a U-shaped screw.

In the arch-shaped upper beam of the elevator with the ultra-large load, preferably, two ends of the arch-shaped plate beam are connected with the car vertical beam through bolts.

This technical scheme requires the design according to the peculiar super large rated load of super large load elevator, and its upper beam basic skeleton obtains through the panel beating welding mode, and this kind of panel beating mainly adopts simplest panel concatenation moreover, and the deformation panel beating cost of relatively complicacy will be much lower. The main structure comprises two arched plate beams which are arranged in parallel, and the arched plate beams are connected into a whole by using a connecting plate to form an inverted arch-shaped component with two high ends and a concave middle part, and a space for accommodating a return rope wheel is arranged between the two inverted arch-shaped components; and reasonable reinforcing plates are used at the positions with relatively weak structures to reinforce according to the radian trend of the arched plate girder. The wheel axle backing plate component is fixed on the lower edge of the arched plate beam and serves as a supporting fixed point of the return rope wheel, and the wheel axle backing plate component is reliable in positioning and convenient to install. Furthermore, the effective span L of the upper beam is taken as a base number, the position of the rope return wheel is arranged according to the optimal stress point, and the ratio of the arch height to the arch width of the arch plate beam ensures that the flexibility value of the whole upper beam can be maintained within a minimum range under the working state.

For a large-load cargo elevator, the usable area under the design requirement can be ensured only by the longer width and the longer depth, but the span of the upper beam can be directly increased, and the rigidity capability of the upper beam is further weakened. According to the technical scheme, the arch body of the arch-shaped upper beam can convert most of tangential force borne into self axial force, even if the span is large, as long as the height-width ratio of the arch can be maintained within a reasonable range, the rigidity capability of the upper beam in the vertical direction can be ensured, the cage vertical beam matched with the arch-shaped upper beam can avoid using structures with weak section characteristics such as channel steel and sheet metal parts as far as possible, and wide-flange H-shaped steel can be selected as a support body of the end part of the arch-shaped upper beam.

Compare in the real web member of traditional structure, the beam on the arch form of this device, actual atress structure is more reasonable, can directly form by the cutting combination of structural steel board, can use the structural steel board of thickness unanimity to make even.

Compared with the prior art, the beneficial effects of the utility model are that: compared with the traditional manufacturing method, the arch-shaped upper beam not only has better rigidity and strength capability, so that the upper beam structure is lightened, but also is beneficial to obtaining and processing raw materials, the structure is simple and reasonable, the arch-shaped upper beam is particularly suitable for cars with large loads and large areas, the whole structure is delicate, and the appearance is attractive.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a top view of fig. 2.

Fig. 4 is a schematic structural view of a mounting portion of a return rope sheave of the present invention.

Fig. 5 is a schematic view of a partial structure of an intermediate reinforcement body according to the present invention.

In the figure: 1. the elevator car comprises an arched plate beam, 101 parts of special-shaped reinforcing plates, 102 parts of double-spliced connecting plates, 103 parts of rectangular reinforcing plates, 2 parts of an axle backing plate assembly, 201 parts of reinforcing ribs, 202 parts of horizontal backing plates, 3 parts of return rope wheels and 4 parts of car vertical beams.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

The arch-shaped upper beam of the elevator with the ultra-large load comprises two arch-shaped plate beams 1 which are arranged in parallel, the effective span of each arch-shaped plate beam 1 is L, the upper part (namely the edge of a steel plate) of each arch-shaped plate beam is of an arc structure with two high ends and a concave middle part, and the ratio M of the arch height to the arch width is in the range of L/9-L/12. The middle part between two arched plate girders 1 is connected through a middle reinforcing body, the middle reinforcing body is designed according to the arc trend of the arched plate girders 1, as shown in fig. 5, the arched plate girder comprises 4 double-splicing plates 102 which are arranged between the two arched plate girders 1 and are perpendicular to the arched plate girders 1, wherein a rectangular reinforcing plate 103 is connected between the two middle double-splicing plates 102, a special-shaped reinforcing plate 101 is connected between the double-splicing plates 102 on both sides along the arc trend of the arched plate girders, and the special-shaped reinforcing plate 101 is of a trapezoidal plate structure. Therefore, the middle reinforcement body composed of the double-spliced plate 102, the rectangular reinforcing plate 103 and the deformed reinforcing plate 101 is completely incorporated in the two arched plate girders 1.

In the space formed between the two arched plate beams 1, the outer sides of the double-spliced connecting plates 102 at the two sides are respectively provided with a return rope wheel 3, and the positions of the return rope wheels 3 at the two ends of the arched plate beams 1 are in the 1/4 range of the effective span L of the arched plate beams 1. The rope return wheel 3 is fixed with the arched plate beam 1 through the wheel axle backing plate component 2, as shown in fig. 4, the wheel axle backing plate component 2 comprises a horizontal backing plate 202 and reinforcing ribs 201 which are distributed at two ends of the horizontal backing plate 202 and tightly attached to the outer side of the arched plate beam 1, a chord section is arranged on the upper side of the wheel axle of the rope return wheel 3, the wheel axle is tightly attached to and positioned on the bottom surface of the horizontal backing plate 202 through the chord section, and then is fixed with the horizontal backing plate through a U-shaped screw.

As an independent arch type upper beam, in practical application, two ends of an arch type plate beam 1 are connected with a car vertical beam 4 through a group of bolts, and the car vertical beam 4 is preferably H-shaped steel.

The above embodiments are descriptions of the present invention, not limitations of the present invention, and any structure after simple transformation is all included in the protection scope of the present invention.

Claims (6)

1. An arch-shaped upper beam of an elevator with a super large load is characterized by comprising two arch plate beams (1) which are arranged in parallel, wherein the upper parts of the arch plate beams are of arc structures with high two ends and concave middle parts, two return rope wheels (3) are arranged in a space formed between the two arch plate beams, and middle reinforcing bodies are arranged according to the arc trend of the arch plate beams; the return rope wheels are positioned at two ends of the arched plate beam and are positioned in the range of 1/4 of the effective span L of the arched plate beam; the arch height and arch width ratio of the arched plate girder is within L/9-L/12.

2. The arched upper beam of the elevator with the ultra-large load as claimed in claim 1, wherein the middle reinforcement body comprises double-spliced plates (102) arranged between the two arched plate beams (1) and perpendicular to the arched plate beams, and special-shaped reinforcement plates (101) connected between the double-spliced plates along the arc-shaped trend of the arched plate beams.

3. The arched upper beam of an elevator with extra large load as claimed in claim 2, wherein said middle reinforcement further comprises a rectangular reinforcing plate (103) connected between the double-spliced plates.

4. The arch-shaped upper beam of the elevator with the ultra-large load as claimed in claim 1, wherein the return rope wheel (3) is fixed with the arch-shaped plate beam (1) through an axle backing plate component (2), the axle backing plate component comprises a horizontal backing plate (202) and reinforcing ribs (201) which are distributed at two ends of the horizontal backing plate and cling to the outer side of the arch-shaped plate beam.

5. The arch-shaped upper beam of the elevator with the ultra-large load as claimed in claim 4, wherein the upper side of the wheel shaft of the return rope wheel (3) is provided with a tangential section, and the wheel shaft is positioned on the bottom surface of the horizontal backing plate (202) through the tangential section and is fixed with the horizontal backing plate through a U-shaped screw rod.

6. The arch-shaped upper beam of the elevator with the ultra-large load as claimed in claim 1, wherein the two ends of the arch-shaped plate beam (1) are connected with the car vertical beam (4) through bolts.

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