A counterweight device for a heavy-duty elevator

Abstract

A counterweight device for a heavy-duty elevator includes a sheave assembly, a sheave cover, guide shoe supports, and a counterweight frame. The counterweight frame includes counterweight frame vertical beams and counterweight frame horizontal beams. The horizontal beams are bolted to both ends of the two vertical beams. Each end of the horizontal beam is bolted to a guide shoe support, which has multiple guide shoe connection holes. A support bending member is bolted to the middle of the horizontal beam. The sheave assembly is bolted to the support bending member at an angle. The top of the sheave assembly is fastened to the sheave cover. This invention uses a diagonally arranged sheave assembly, placing the sheaves at a certain angle within the shaft, effectively reducing the overall footprint of the main unit. It also incorporates an anti-object device, improves the guide shoe support design, and optimizes the counterweight frame vertical beam structure, significantly improving the elevator's space utilization, safety, adaptability, and cost-effectiveness.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to a counterweight device for a heavy-duty elevator. Background Technology

[0002] With the acceleration of urbanization, the number of high-rise and super high-rise buildings is constantly increasing, placing higher demands on the load-bearing capacity, operating efficiency, and safety of elevators. Traditional elevator counterweight devices typically employ simple counterweight blocks and guide rail designs, which have the following problems:

[0003] 1. Low space utilization: The traditional counterweight device has a relatively simple rope sheave arrangement, which occupies a lot of shaft space and affects the overall layout.

[0004] 2. Insufficient safety: The lack of effective devices to prevent foreign objects from entering can easily lead to damage to critical components such as rope pulleys.

[0005] 3. Poor adaptability: The guide shoe bracket design lacks universality and is difficult to adapt to different models of guide shoes on the market, which increases the difficulty of maintenance.

[0006] 4. High cost: The design of the counterweight frame beam is unreasonable, which cannot accommodate more counterweight blocks at the same height, resulting in increased material costs.

[0007] 5. Limited travel: Traditional design limits the travel of the counterweight, making it difficult to adapt to the needs of smaller shafts. Summary of the Invention

[0008] This utility model aims to address the shortcomings of existing technologies by providing a counterweight device for heavy-duty elevators.

[0009] To achieve the above objectives, this utility model adopts the following technical solution:

[0010] A counterweight device for a heavy-duty elevator includes a sheave assembly, a sheave cover, a guide shoe bracket, and a counterweight frame. The counterweight frame includes a counterweight frame upright beam and a counterweight frame crossbeam. The counterweight frame crossbeam is bolted to both ends of the two counterweight frame upright beams. Each end of the counterweight frame crossbeam is bolted to a guide shoe bracket. The guide shoe bracket has multiple guide shoe connection holes. A support bending member is bolted to the middle of the counterweight frame crossbeam. The sheave assembly is bolted obliquely to the support bending member. The top of the sheave assembly is fastened to the sheave cover.

[0011] The multiple guide shoe connection holes are evenly distributed in two rows, and each guide shoe connection hole is an oblong connection hole.

[0012] The angle between the sheave assembly and the counterweight frame beam is 25°.

[0013] The sheave assembly includes a sheave support plate, a sheave support plate, a sheave support shaft, and a wire rope reel. The sheave support plate is a grooved plate with the opening facing upwards. Two sheave support plates are bolted to the inner sides of the groove walls on both sides of the sheave support plate. The sheave support shaft passes through the upper part of the two sheave support plates. The wire rope reel is set on the sheave support shaft between the two sheave support plates. A rope-blocking shaft is inserted between the two side walls of the sheave support plate. A pad is set on the bottom of the groove of the sheave support plate.

[0014] The two wheel support plates are connected to side guard plates on their corresponding sides.

[0015] The rope pulley guard includes a guard, a protective plate, and a pressure plate. The guard is a grooved plate and is fastened to the top of two pulley support plates. Mounting holes are provided on both sides of the top surface of the guard. Protective plates are installed on both sides of the top surface of the guard. The protective plates are pressed by the pressure plate. The pressure plate and the protective plates are fastened to the guard by bolts passing through the mounting holes.

[0016] The protective plate is made of rubber, and its side extends beyond the top edge of the cover.

[0017] The wheel support plate has a rectangular anti-detachment plate tightly fastened below the wheel support shaft. The bottom of both ends of the wheel support shaft has slots, and the anti-detachment plate is engaged in the slots of the wheel support shaft.

[0018] A rectangular notch is provided on the upper part of the counterweight frame beam, and a connecting plate is added at the notch.

[0019] The beneficial effects of this utility model are as follows: This utility model adopts a slanted design for the rope pulley assembly, which arranges the rope pulleys at a certain angle in the shaft, effectively reducing the overall footprint of the main unit. It also adds an anti-foreign object device, improves the guide shoe support design, and optimizes the counterweight frame beam structure, which significantly improves the space utilization, safety, adaptability, and cost-effectiveness of the elevator. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is the left view of the present invention;

[0022] Figure 3 This is a top view of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the rope pulley assembly and rope pulley cover of this utility model.

[0024] In the diagram: 1-Rope pulley assembly; 11-Rope retaining shaft; 12-Pulley support plate; 13-Pulley support plate; 14-Anti-derailment plate; 15-Side guard plate; 16-Pulley support shaft; 17-Wire rope reel; 18-Plate; 2-Rope pulley guard; 21-Guard; 22-Protective plate; 23-Pressure plate; 24-Mounting hole; 3-Guide shoe bracket; 31-Guide shoe connection hole; 4-Connecting plate; 5-Counterweight frame; 51-Counterweight frame upright beam; 52-Counterweight frame crossbeam; 53-Support bending component;

[0025] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0027] A counterweight device for a heavy-duty elevator includes a sheave assembly 1, a sheave cover 2, a guide shoe bracket 3, and a counterweight frame 5. The counterweight frame 5 includes a counterweight frame upright beam 51 and a counterweight frame crossbeam 52. The counterweight frame crossbeam 52 is fastened to both ends of the two counterweight frame upright beams 51 by bolts. Each end of the counterweight frame crossbeam 52 is connected to a guide shoe bracket 3 by bolts. The guide shoe bracket 3 has multiple guide shoe connection holes 31. The middle of the counterweight frame crossbeam 52 is bolted to a support bending member 53. The sheave assembly 1 is obliquely connected to the support bending member 53 by bolts. The top of the sheave assembly 1 is fastened to the sheave cover 2.

[0028] The multiple guide shoe connection holes 31 are evenly distributed in two rows, and each guide shoe connection hole 31 is an oblong connection hole.

[0029] The angle between the sheave assembly 1 and the counterweight frame beam 52 is 25°.

[0030] The sheave assembly 1 includes a sheave support plate 12, a sheave support plate 13, a sheave support shaft 16, and a wire rope reel 17. The sheave support plate 12 is a grooved plate with the opening facing upward. Two sheave support plates 13 are bolted to the inner side of the groove walls on both sides of the sheave support plate 12. The sheave support shaft 16 passes through the upper part of the two sheave support plates 13. The wire rope reel 17 is set on the sheave support shaft 16 between the two sheave support plates 13. A rope-blocking shaft 11 is inserted between the two side walls of the sheave support plate 12. A pad 18 is set on the bottom of the groove of the sheave support plate 12.

[0031] The two wheel support plates 13 are connected to the corresponding sides of the two sides with side guard plates 15.

[0032] The rope pulley guard 2 includes a guard 21, a protective plate 22, and a pressure plate 23. The guard 21 is a grooved plate and is fastened to the top of two pulley support plates 13. Mounting holes 24 are provided on both sides of the top surface of the guard 21. The protective plate 22 is installed on both sides of the top surface of the guard 21. The protective plate 22 is pressed by the pressure plate 23. The pressure plate 23 and the protective plate 22 are fastened to the guard 21 by bolts passing through the mounting holes 24.

[0033] The protective plate 22 is made of rubber, and the side of the protective plate 22 extends beyond the top edge of the cover 21.

[0034] A rectangular anti-detachment plate 14 is fastened to the wheel support plate 13 below the wheel support shaft 16. The bottom of both ends of the wheel support shaft 16 is provided with slots, and the anti-detachment plate 14 is engaged in the slots of the wheel support shaft 16.

[0035] A rectangular notch is provided on the upper part of the counterweight upright beam 51, and a connecting plate 4 is added at the notch.

[0036] The sheave assembly 1 of this utility model adopts a slanted design, arranging it at a 25° angle within the shaft, which effectively reduces the overall footprint of the main unit. The sheave assembly 1 is connected to the support bending member 53 in the middle of the counterweight frame beam 52. The support bending member 53 is provided with directional positioning connection holes. The sheave assembly 1 and the counterweight frame 5 use a directional positioning connection hole structure, and the asymmetrical design of the connection holes effectively prevents installation errors. To prevent foreign objects from entering the sheave assembly 1, which could cause damage or malfunction, a rubber seal is added to the sheave cover 2 to prevent foreign object entry. The protective plate made of rubber can effectively prevent foreign objects from entering. The guide shoe bracket 3 is provided with multiple guide shoe connection holes 31. The hole spacing of the guide shoe connection holes 31 can be adapted to different models of guide shoes. The guide shoe connection holes 31 are waist-shaped connection holes that connect with the counterweight frame holes, which can increase the adjustment range and facilitate installation and adjustment. The counterweight frame upright beam 51 has a notch to save costs and accommodate more counterweight blocks at the same height. The notch size is 40mm*90mm, and a connecting plate 4 is added at the notch to extend the counterweight stroke and make it able to adapt to the needs of smaller shafts.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A large load elevator counterweight device characterized by, The system includes a sheave assembly (1), a sheave cover (2), a guide shoe bracket (3), and a counterweight frame (5). The counterweight frame (5) includes a counterweight frame upright beam (51) and a counterweight frame crossbeam (52). The counterweight frame crossbeam (52) is fastened to both ends of the two counterweight frame upright beams (51) by bolts. Each end of the counterweight frame crossbeam (52) is connected to a guide shoe bracket (3) by bolts. The guide shoe bracket (3) has multiple guide shoe connection holes (31). The middle of the counterweight frame crossbeam (52) is bolted to a support bending member (53). The sheave assembly (1) is obliquely connected to the support bending member (53) by bolts. The top of the sheave assembly (1) is fastened to the sheave cover (2).

2. The heavy duty elevator counterweight apparatus of claim 1, wherein, The multiple guide shoe connection holes (31) are evenly distributed in two rows, and each guide shoe connection hole (31) is an oblong connection hole.

3. The heavy duty elevator counterweight apparatus of claim 1, wherein, The angle between the sheave assembly (1) and the counterweight frame beam (52) is 25°.

4. The heavy duty elevator counterweight assembly of claim 3, wherein, The sheave assembly (1) includes a sheave support plate (12), a sheave support plate (13), a sheave support shaft (16), and a wire rope reel (17). The sheave support plate (12) is a grooved plate with the opening facing upward. Two sheave support plates (13) are bolted to the inner side of the groove walls on both sides of the sheave support plate (12). The sheave support shaft (16) passes through the upper part of the two sheave support plates (13). The wire rope reel (17) is set on the sheave support shaft (16) between the two sheave support plates (13). A rope-blocking shaft (11) is inserted between the two side walls of the sheave support plate (12). A pad (18) is set on the bottom of the groove of the sheave support plate (12).

5. A heavy duty elevator counterweight assembly according to claim 4 wherein, The two wheel support plates (13) are connected to side guard plates (15) on their corresponding sides.

6. A large load elevator counterweight device according to claim 4, characterized in that The rope pulley guard (2) includes a guard (21), a protective plate (22), and a pressure plate (23). The guard (21) is a grooved plate. The guard (21) is fastened to the top of two pulley support plates (13). Mounting holes (24) are provided on both sides of the top surface of the guard (21). The protective plate (22) is installed on both sides of the top surface of the guard (21). The protective plate (22) is pressed by the pressure plate (23). The pressure plate (23) and the protective plate (22) are fastened to the guard (21) by bolts passing through the mounting holes (24).

7. A heavy duty elevator counterweight assembly according to claim 6 wherein, The protective plate (22) is made of rubber, and the side of the protective plate (22) extends out of the top edge of the cover (21).

8. The heavy duty elevator counterweight assembly of claim 4, wherein, A rectangular anti-detachment plate (14) is tightly fastened on the wheel support plate (13) below the wheel support shaft (16). The bottom of both ends of the wheel support shaft (16) is provided with slots, and the anti-detachment plate (14) is engaged in the slots of the wheel support shaft (16).

9. The heavy duty elevator counterweight assembly of claim 1, wherein, A rectangular notch is provided on the upper part of the counterweight frame beam (51), and a connecting plate (4) is added at the notch.

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