Elevator car spandrel girder structure

Abstract

The utility model provides an elevator car bearing beam structure which comprises two first cross beams and two second cross beams, each first cross beam is of a flat plate structure, each second cross beam comprises a web plate and two wing plates, and the two wing plates are arranged on the two sides of the web plate respectively. The two wing plates horizontally extend towards one sides of the web plates and are the same in extending direction, a gap is formed between the web plates on the two second cross beams, the wing plates on the two second cross beams extend in the direction away from each other, the first cross beams stretch across the gap and are connected with the wing plates on the two second cross beams respectively, and the two first cross beams are located on the upper sides and the lower sides of the second cross beams respectively. The first cross beam located on the upper side is used for being connected with a traction machine of an elevator. Therefore, according to the elevator car bearing beam structure, on the premise that enough strength of the structure is guaranteed, material use is optimized, and therefore the light weight effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of elevator installation technology, and in particular to an elevator car load-bearing beam structure. Background Technology

[0002] The elevator traction machine is one of the core components of an elevator system. Its main function is to drive the elevator car up and down using traction steel cables. During elevator system installation, the load-bearing beams (i.e., the structural beams supporting the traction machine) play a crucial role in supporting and fixing the traction machine. Existing load-bearing beams are typically I-beams. An I-beam usually consists of two flanges (upper and lower flanges) and a web (vertical portion). The flanges primarily bear bending moments, while the web mainly bears shear forces. Due to the significant weight of the traction machine, a small contact area with the flanges can easily lead to stress concentration.

[0003] However, if a larger flange is used to increase the contact area with the traction machine, while the web remains the same, stress is likely to concentrate at the junction of the flange and the web, especially under uneven stress, which may lead to local failure. If the stress distribution is increased by increasing the thickness of the web, the material cost will increase and the lightweight requirement cannot be met. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an elevator car load-bearing beam structure, which aims to solve the problem that in the prior art, increasing the thickness of the web plate to increase stress distribution leads to increased material costs and fails to meet the requirements of lightweighting.

[0005] This utility model provides an elevator car load-bearing beam structure, including a first crossbeam and a second crossbeam. Two crossbeams are provided for both the first and second crossbeams. The first crossbeam is a flat plate structure. The second crossbeam includes a web and two wing plates. Two wing plates are respectively located on both sides of the web, extending horizontally towards one side of the web in the same direction. A gap is formed between the webs of the two second crossbeams. The wing plates of the two second crossbeams extend away from each other. The first crossbeam spans the gap and connects the wing plates of the two second crossbeams. The two first crossbeams are located on the upper and lower sides of the second crossbeam, respectively. The upper first crossbeam is used to connect to the elevator's traction machine.

[0006] Furthermore, it also includes a connecting frame, through which the first crossbeam located on the upper side is connected to the elevator's traction machine.

[0007] Furthermore, the connecting frame includes a support plate, a connecting plate, and a clamping plate. The support plate extends horizontally, and two clamping plates are provided, each located on one side of the support plate. The two clamping plates extend vertically toward one side of the support plate in the same direction, forming a first installation space between them. This first installation space can accommodate the web plates on the two second crossbeams. A second installation space is formed between the support plate and the clamping plates, accommodating the first crossbeam and the wing plate. The connecting plate is connected to one side of the support plate and extends horizontally away from the support plate. The support plate is used to connect with the elevator's traction machine, and the connecting plate is used to connect with the first crossbeam located on the upper side.

[0008] Furthermore, it also includes a first bolt, which passes sequentially through the connecting plate, the first crossbeam, and the wing plate to secure the connecting frame.

[0009] Furthermore, it also includes a support frame for connecting to the first crossbeam located on the lower side.

[0010] Furthermore, the support frame includes a support plate and two support feet. One end of each support foot is connected to the support plate, and the other ends of the two support feet extend away from each other.

[0011] Furthermore, it also includes a second bolt, which passes sequentially through the first crossbeam located on the lower side and the support plate to fix the first crossbeam.

[0012] Beneficial Effects: This utility model provides an elevator car load-bearing beam structure, including a first crossbeam and a second crossbeam. Two crossbeams are provided for each type. The first crossbeam is a flat plate structure, and the second crossbeam includes a web and two flanges. Two flanges are provided, each located on one side of the web, extending horizontally towards one side of the web in the same direction. A gap is formed between the webs of the two second crossbeams. The flanges of the two second crossbeams extend away from each other. The first crossbeam spans the gap and connects the flanges of the two second crossbeams. The two first crossbeams are located on the upper and lower sides of the second crossbeam, respectively. The upper first crossbeam is used to connect to the elevator traction machine. Therefore, the elevator car load-bearing beam structure of this application optimizes material usage while ensuring sufficient strength, thereby achieving a lightweight effect. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the elevator car load-bearing beam structure of this utility model;

[0014] Figure 2This is an exploded view of the elevator car load-bearing beam structure of this utility model;

[0015] Figure 3 This is a structural schematic diagram of the connecting frame;

[0016] In the diagram: 1. First crossbeam; 2. Second crossbeam; 21. Web plate; 22. Wing plate; 23. Gap; 3. Connecting frame; 31. Bearing plate; 32. Connecting plate; 33. Clamping plate; 34. First installation space; 35. Second installation space; 4. First bolt; 5. Support frame; 51. Support plate; 52. Support leg; 6. Second bolt. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figures 1 to 3 This utility model provides an elevator car load-bearing beam structure, including a first crossbeam 1 and a second crossbeam 2. Both the first crossbeam 1 and the second crossbeam 2 are provided with two beams. The first crossbeam 1 is a flat plate structure. The second crossbeam 2 includes a web plate 21 and a wing plate 22. Two wing plates 22 are provided, which are respectively located on both sides of the web plate 21. The two wing plates 22 extend horizontally towards one side of the web plate 21 and extend in the same direction. A gap 23 is formed between the web plates 21 on the two second crossbeams 2. The wing plates 22 on the two second crossbeams 2 extend in a direction away from each other. The first crossbeam 1 spans the gap 23 and connects the wing plates 22 on the two second crossbeams 2 respectively. The two first crossbeams 1 are located on the upper and lower sides of the second crossbeam 2 respectively. The first crossbeam 1 located on the upper side is used to connect with the elevator traction machine.

[0019] In this application, by increasing the contact area with the traction machine through the first crossbeam 1, even if the web plate 21 uses the same amount of material, since the first crossbeam 1 spans the two second crossbeams, it can effectively distribute the stress on the two web plates 21 and the flange 22, avoiding stress concentration. Even under uneven stress, the web plate 21 on the side with greater stress can form effective support.

[0020] In one feasible implementation, a connecting frame 3 is also included, through which the first crossbeam 1 located on the upper side is connected to the elevator's traction machine.

[0021] Specifically, the connecting frame 3 includes a support plate 31, a connecting plate 32, and a clamping plate 33. The support plate 31 extends horizontally, and two clamping plates 33 are provided, respectively located on both sides of the support plate 31. The two clamping plates 33 extend vertically toward one side of the support plate 31 in the same direction, forming a first installation space 34 between the two clamping plates 33. The first installation space 34 can accommodate the web plates 21 on the two second crossbeams 2. A second installation space 35 is formed between the support plate 31 and the clamping plates 33. The second installation space 35 can accommodate the first crossbeam 1 and the wing plate 22. The connecting plate 32 is connected to one side of the support plate 31 and extends horizontally away from the support plate 31. The support plate 31 is used to connect with the traction machine of the elevator, and the connecting plate 32 is used to connect with the first crossbeam 1 located on the upper side. In this embodiment, since the two second crossbeams 2 are assembled separately, they can be maintained in a preset position under the clamping action of the two clamping plates 33. Furthermore, when uneven force on both sides of the traction machine may cause tilting, the clamping plates 33 abut against the web plate 21 of the second crossbeams 2, thus providing effective support for the traction machine and avoiding the risk of tilting. The connecting plate 32 provides a connection point, facilitating the installation of the traction machine onto the first crossbeam 1.

[0022] In one feasible embodiment, a first bolt 4 is further included, which passes sequentially through the connecting plate 32, the first crossbeam 1, and the wing plate 22 to fix the connecting frame 3. This embodiment features a split-assembly of the load-bearing beam structure, which can improve production efficiency, reduce costs, increase flexibility, and facilitate maintenance. In other embodiments, the connecting plate 32, the first crossbeam 1, and the wing plate 22 can be sequentially connected by welding.

[0023] In one feasible embodiment, a support frame 5 is also included, which is used to connect to the first crossbeam 1 located on the lower side. In this embodiment, the support frame 5 can raise the installation height of the first crossbeam 1, making it easier for the load-bearing beam structure of this application to better adapt to various installation environments.

[0024] Specifically, the support frame 5 includes a support plate 51 and support legs 52. There are two support legs 52. One end of each support leg 52 is connected to the support plate 51, and the other end of each support leg 52 extends away from each other.

[0025] In one feasible embodiment, a second bolt 6 is also included, which passes sequentially through the first crossbeam 1 located on the lower side and the support plate 51 to fix the first crossbeam 1. Similarly, this embodiment uses the second bolt 6 for fixing, and also adopts a split assembly, which greatly improves flexibility. In other embodiments, the first crossbeam 1 and the support plate 51 can also be connected by welding.

[0026] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A load-bearing beam structure for an elevator car, characterized in that: The system includes a first crossbeam (1) and a second crossbeam (2). Both the first crossbeam (1) and the second crossbeam (2) are provided with two crossbeams. The first crossbeam (1) is a flat plate structure. The second crossbeam (2) includes a web plate (21) and a wing plate (22). There are two wing plates (22). The two wing plates (22) are respectively located on both sides of the web plate (21). The two wing plates (22) extend horizontally towards one side of the web plate (21) and extend in the same direction. A gap (23) is formed between the web plates (21) on the two second crossbeams (2). The wing plates (22) on the two second crossbeams (2) extend away from each other. The first crossbeam (1) spans the gap (23) and connects the wing plates (22) on the two second crossbeams (2). The two first crossbeams (1) are located on the upper and lower sides of the second crossbeam (2). The first crossbeam (1) located on the upper side is used to connect with the elevator traction machine.

2. The elevator car load-bearing beam structure according to claim 1, characterized in that: It also includes a connecting frame (3), through which the first crossbeam (1) located on the upper side is connected to the elevator's traction machine.

3. The elevator car load-bearing beam structure according to claim 2, characterized in that: The connecting frame (3) includes a support plate (31), a connecting plate (32), and a clamping plate (33). The support plate (31) extends horizontally. Two clamping plates (33) are provided, one on each side of the support plate (31). The two clamping plates (33) extend vertically toward one side of the support plate (31) in the same direction. A first installation space (34) is formed between the two clamping plates (33). The first installation space (34) can accommodate two connecting plates. The web plate (21) on the two crossbeams (2) forms a second installation space (35) between the bearing plate (31) and the clamping plate (33). The second installation space (35) can accommodate the first crossbeam (1) and the wing plate (22). The connecting plate (32) is connected to one side of the bearing plate (31) and extends horizontally away from the bearing plate (31). The bearing plate (31) is used to connect with the traction machine of the elevator. The connecting plate (32) is used to connect with the first crossbeam (1) located on the upper side.

4. The elevator car load-bearing beam structure according to claim 3, characterized in that: It also includes a first bolt (4), which passes through the connecting plate (32), the first crossbeam (1) and the wing plate (22) in sequence to fix the connecting frame (3).

5. The elevator car load-bearing beam structure according to claim 1, characterized in that: It also includes a support frame (5) for connecting to the first crossbeam (1) located on the lower side.

6. The elevator car load-bearing beam structure according to claim 5, characterized in that: The support frame (5) includes a support plate (51) and support legs (52). There are two support legs (52). One end of each support leg (52) is connected to the support plate (51), and the other end of each support leg (52) extends away from each other.

7. The elevator car load-bearing beam structure according to claim 6, characterized in that: It also includes a second bolt (6), which passes through the first crossbeam (1) located on the lower side and the support plate (51) in sequence to fix the first crossbeam (1).

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