Large-tonnage elevator car frame structure

Abstract

The large-tonnage elevator car frame structure comprises an upper beam and a lower beam, the lower beam is arranged below the upper beam, the lower beam and the upper beam are connected through a first stand column, a second stand column, a third stand column and a fourth stand column, the lower beam is composed of a triangular truss, the lower beam comprises an upper-layer lower beam and a lower-layer lower beam, the lower-layer lower beam is arranged below the upper-layer lower beam, and the lower-layer lower beam is arranged below the lower-layer lower beam. Two ends of the upper-layer lower beam are respectively connected with two ends of the lower-layer lower beam through connecting channel steel, the middle of the upper-layer lower beam is connected with the lower-layer lower beam through three splayed channel steel, the upper portion of one side of the first stand column is connected with the upper-layer lower beam through a first pull rod mechanism, and the upper portion of the other side of the first stand column is connected with the lower portion of the second stand column through a second pull rod mechanism. The stand columns are connected with one another through the pull rod mechanisms to form a stable supporting system. The overall stability of the structure is enhanced through the pull rod mechanism, and impact loads are effectively absorbed and dispersed in the elevator running process. And the lower beam adopts the triangular truss, so that the stability and the bearing capacity are higher. And a force transmission path is fully considered, so that the load can be uniformly distributed on each component, and the bearing capacity of the whole lower beam is improved.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to elevators, and especially to a large-tonnage elevator car frame structure. Background Art

[0002] With the continuous development of modern building technology and the acceleration of the urbanization process, high-rise and super high-rise buildings are increasing day by day, posing higher requirements for the load-bearing capacity and running stability of elevators. In the prior art, when the elevator car frame faces application scenarios with a large tonnage (load capacity exceeding 20 tons), there are often problems such as limited stability, safety, and bearing capacity, as well as high manufacturing costs. These problems not only increase the operating cost of the elevator but also may affect the reliability and service life of the elevator. Summary of the Invention

[0003] The purpose of the utility model is to provide a large-tonnage elevator car frame structure, and the large-tonnage elevator car frame structure is to solve the technical problems of insufficient stability, safety, and bearing capacity of the elevator car frame in the application scenario of large-tonnage load in the prior art.

[0004] A large-tonnage elevator car frame structure of the utility model includes an upper beam and a lower beam. The lower beam is arranged below the upper beam. The lower beam and the upper beam are connected by the first column, the second column, the third column, and the fourth column arranged at intervals. The lower beam is composed of a triangular truss. The lower beam includes an upper-layer lower beam and a lower-layer lower beam. The lower-layer lower beam is arranged below the upper-layer lower beam. The two ends of the upper-layer lower beam are respectively connected to the two ends of the lower-layer lower beam through connecting channel steels. The middle of the upper-layer lower beam is connected to the lower-layer lower beam through three channel steels in a figure-eight shape arranged at intervals. The upper part of one side of the first column is connected to the upper-layer lower beam through a first tie rod mechanism. The upper part of the other side of the first column is connected to the lower part of the second column through a second tie rod mechanism. The upper part of one side of the second column is connected to the lower part of the first column through a third tie rod mechanism. The upper part of the other side of the second column is connected to the lower part of the third column through a fourth tie rod mechanism. The upper part of one side of the third column is connected to the lower part of the second column through a fifth tie rod mechanism. The upper part of the other side of the third column is connected to the lower part of the fourth column through a sixth tie rod mechanism. The upper part of one side of the fourth column is connected to the lower part of the third column through a seventh tie rod mechanism. The upper part of the other side of the fourth column is connected to the upper-layer lower beam through an eighth tie rod mechanism.

[0005] Further, the lower-layer lower beam includes lower-layer connecting channel steels.

[0006] Further, guide shoes and a guide wheel mechanism are arranged on the upper beam, and a safety gear mechanism is arranged on the lower beam.

[0007] Compared with the prior art, the effects of the present utility model are positive and obvious. The overall structure of the present utility model is composed of an upper beam, a lower beam, and the first column, the second column, the third column, and the fourth column connecting them, forming a stable frame system. Each column is interconnected through a tie rod mechanism to form a stable support system. These tie rod mechanisms not only enhance the overall stability of the structure but also effectively absorb and disperse impact loads during the operation of the elevator. The lower beam adopts a triangular truss, which has high stability and load-bearing capacity. Each node of the triangle is connected by welding or bolts to ensure firm and reliable connection, so as to achieve the dual advantages of light self-weight and stable structure. In the design of the truss, the force transmission path is fully considered, so that the load can be evenly distributed to each component, thereby improving the load-bearing capacity of the entire lower beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 FIG. is a schematic diagram of a large-tonnage elevator car frame structure of the present utility model.

[0009] Figure 2 is Figure 1 the schematic cross-sectional view taken along line A-A of

[0010] Figure 3 is Figure 1 the schematic cross-sectional view taken along line B-B of

[0011] Figure 4 FIG. is a schematic diagram of the lower beam in a large-tonnage elevator car frame structure of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] The present utility model will be further described below in conjunction with embodiments, but the present utility model is not limited to these embodiments. Any similar structure and its similar changes using the present utility model shall fall within the protection scope of the present utility model. The use of directions such as up, down, front, back, left, and right in the present utility model is only for the convenience of clear description and does not limit the technical solution of the present utility model.

[0013] Such as Figures 1-4As shown in the figure, a large-tonnage elevator car frame structure of the present utility model includes an upper beam 1 and a lower beam 2. The lower beam 2 is arranged below the upper beam 1. The lower beam 2 and the upper beam 1 are connected by the first column 3, the second column 4, the third column 5, and the fourth column 6 arranged at intervals. The lower beam 2 is composed of a triangular truss. The lower beam 2 includes an upper-layer lower beam 7 and a lower-layer lower beam 8. The lower-layer lower beam 8 is arranged below the upper-layer lower beam 7. Both ends of the upper-layer lower beam 7 are respectively connected to both ends of the lower-layer lower beam 8 through connecting channel steels 9. The middle part of the upper-layer lower beam 7 is connected to the lower-layer lower beam 8 through three spaced "eight"-shaped channel steels 10. The upper part of one side of the first column 3 is connected to the upper-layer lower beam 7 through a first tie rod mechanism 11. The upper part of the other side of the first column 3 is connected to the lower part of the second column 4 through a second tie rod mechanism 12. The upper part of one side of the second column 4 is connected to the lower part of the first column 3 through a third tie rod mechanism 13. The upper part of the other side of the second column 4 is connected to the lower part of the third column 5 through a fourth tie rod mechanism 14. The upper part of one side of the third column 5 is connected to the lower part of the second column 4 through a fifth tie rod mechanism 15. The upper part of the other side of the third column 5 is connected to the lower part of the fourth column 6 through a sixth tie rod mechanism 16. The upper part of one side of the fourth column 6 is connected to the lower part of the third column 5 through a seventh tie rod mechanism 17. The upper part of the other side of the fourth column 6 is connected to the upper-layer lower beam 7 through an eighth tie rod mechanism 18.

[0014] Further, the lower-layer lower beam 8 includes a lower-layer connecting channel steel 22.

[0015] Further, a guide shoe 19 and a guide wheel mechanism 20 are arranged on the upper beam 1, and a safety clamp mechanism 21 is arranged on the lower beam 2.

[0016] Specifically, the columns, triangular trusses, connecting channel steels, "eight"-shaped channel steels 10, tie rod mechanisms, guide shoes 19, guide wheel mechanisms 20, safety clamp mechanisms 21, etc. in this embodiment all adopt well-known solutions in the prior art, which are already understood by those skilled in the art and will not be elaborated here.

[0017] The working principle of this embodiment:

[0018] The large-tonnage elevator car frame structure of the present utility model is applicable to elevator structures with a load capacity greater than 20T. The overall structure is composed of an upper beam 1, a lower beam 2, and the first column 3, the second column 4, the third column 5, and the fourth column 6 connecting them, forming a stable frame system.

[0019] The upper beam 1 and the columns are made of high-strength steel to ensure the stability and safety of the overall structure. The columns are connected to each other through tie rod mechanisms to form a stable support system. These tie rod mechanisms not only enhance the overall stability of the structure but also effectively absorb and disperse impact loads during the operation of the elevator.

[0020] The lower beam 2 adopts a triangular truss, which has high stability and load-bearing capacity. Each node of the triangle is connected by welding or bolts to ensure firm and reliable connection, so as to achieve the dual advantages of light self-weight and stable structure. In the design of the truss, the force transmission path is fully considered, so that the load can be evenly distributed to each component, thereby improving the load-bearing capacity of the entire lower beam 2. At the key parts of the truss, such as the nodes and the parts with greater stress, reinforcing plates or ribs can be set to improve the local strength and stiffness. The truss is optimized to reduce the cross-sectional size of the members, reduce the self-weight, and ensure the stability of the structure at the same time.

[0021] The guide shoes 19 and the guide wheel mechanism 20 are used to guide the elevator car to run smoothly in the hoistway. The safety gear mechanism 21 is used to make an emergency brake when the elevator runs overspeed or gets out of control to ensure the safety of passengers and goods.

Claims

1. A large-tonnage elevator car frame structure, characterized in that, It includes an upper beam and a lower beam. The lower beam is arranged below the upper beam. The lower beam and the upper beam are connected by the first column, the second column, the third column and the fourth column which are arranged at intervals. The lower beam is composed of a triangular truss. The lower beam includes an upper-layer lower beam and a lower-layer lower beam. The lower-layer lower beam is arranged below the upper-layer lower beam. The two ends of the upper-layer lower beam are respectively connected to the two ends of the lower-layer lower beam through connecting channel steels. The middle part of the upper-layer lower beam is connected to the lower-layer lower beam through three channel steels in a figure-eight shape which are arranged at intervals. The upper part of one side of the first column is connected to the upper-layer lower beam through a first tie rod mechanism. The upper part of the other side of the first column is connected to the lower part of the second column through a second tie rod mechanism. The upper part of one side of the second column is connected to the lower part of the first column through a third tie rod mechanism. The upper part of the other side of the second column is connected to the lower part of the third column through a fourth tie rod mechanism. The upper part of one side of the third column is connected to the lower part of the second column through a fifth tie rod mechanism. The upper part of the other side of the third column is connected to the lower part of the fourth column through a sixth tie rod mechanism. The upper part of one side of the fourth column is connected to the lower part of the third column through a seventh tie rod mechanism. The upper part of the other side of the fourth column is connected to the upper-layer lower beam through an eighth tie rod mechanism.

2. The structure of a large-tonnage elevator car frame according to claim 1, characterized in that The lower-layer lower beam includes a lower-layer connecting channel steel.

3. A large-tonnage elevator car frame structure according to claim 1, characterized in that, Guide shoes and a guide wheel mechanism are arranged on the upper beam, and a safety clamp mechanism is arranged on the lower beam.

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