Load-bearing structure of large-load machine-room-free goods elevator

Abstract

The utility model discloses a bearing structure of a heavy-load goods elevator without a machine room. The bearing structure comprises a main bearing beam, an auxiliary bearing beam, a main reinforcing inclined strut and an auxiliary reinforcing inclined strut, the main bearing beam comprises three pieces of main beam I-shaped steel which are arranged in parallel; the number of the main reinforcing inclined struts is two, the top end of each main reinforcing inclined strut is fixedly connected with the bottom of the main bearing beam, the bottom end of each main reinforcing inclined strut is fixedly connected with a main fixing plate, and the main fixing plates are fixedly connected with the well wall. The auxiliary bearing beam and the main bearing beam are arranged oppositely in a spaced mode. The auxiliary bearing beam comprises two auxiliary beam steel channels. The number of the auxiliary reinforcing inclined struts is two, the top end of each auxiliary reinforcing inclined strut is fixedly connected with the bottom of the auxiliary bearing beam, the bottom end of each auxiliary reinforcing inclined strut is fixedly connected with an auxiliary fixing plate, and the auxiliary fixing plates are fixedly connected with the well wall. The bearing structure of the heavy-load goods elevator without the machine room can effectively guarantee the overall structural strength of the bearing beam and improve the bending strength of the bearing beam, and has the advantages of being low in manufacturing cost and small in installation difficulty.

Description

Technical Field

[0001] The utility model relates to a load-bearing structure of a heavy-load machine-room-less freight elevator. Background Art

[0002] A machine-room-less freight elevator is a vertical lift powered by an electric motor and featuring a box-shaped pod, used as a means of transport for carrying goods in multi-story buildings. An elevator primarily consists of a car, a main mechanism, a guide mechanism, a braking mechanism, and the like. A machine-room-less elevator, as opposed to a machine-room-based freight elevator, eliminates the need for a machine room, moving the control panel, main engine, speed limiter, and other components from the original machine room to the shaft. The main engine is typically secured to the shaft using a load-bearing beam. However, due to the large load capacity of freight elevators, the structural strength of traditional machine-room-less load-bearing beams is insufficient to meet the demands of heavy-duty freight elevators. To address this issue, some existing elevator manufacturers typically employ larger, stronger load-bearing beams to increase their load-bearing capacity. However, this increases the manufacturing and installation costs and difficulty of the beams, making it difficult to promote and apply heavy-duty machine-room-less freight elevators on the market. Summary of the Invention

[0003] The purpose of this utility model is to provide a load-bearing structure for a large-load machine room-less freight elevator. The structure is reasonable, can effectively ensure the overall structural strength of the load-bearing beam, improve the bending strength of the load-bearing beam, and has the advantages of low manufacturing cost and low installation difficulty.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is to design a load-bearing structure of a large-load machine-room-less freight elevator, including a load-bearing beam assembly, wherein the load-bearing beam assembly includes a main load-bearing beam, a secondary load-bearing beam, a main reinforcing diagonal brace and a secondary reinforcing diagonal brace;

[0005] The main engine, counterweight sheave beam, car rope end assembly and counterweight rope end assembly are installed on the top of the main load-bearing beam, and the main load-bearing beam includes three parallel main beam I-beams;

[0006] The main reinforcing braces are provided in two pieces, the top end of each main reinforcing brace is fixedly connected to the bottom of the main load-bearing beam, and the bottom end of each main reinforcing brace is fixedly connected to a main fixing plate, and the main fixing plate is fixedly connected to the well wall;

[0007] The auxiliary load-bearing beam is spaced apart from the main load-bearing beam and is arranged opposite to it. The top of the auxiliary load-bearing beam is installed with a car rope pulley and a speed limiter, and the auxiliary load-bearing beam includes two auxiliary beam channel steels;

[0008] The auxiliary reinforcing braces are provided in two pieces, the top end of each auxiliary reinforcing brace is fixedly connected to the bottom of the auxiliary load-bearing beam, and the bottom end of each auxiliary reinforcing brace is fixedly connected to a auxiliary fixing plate, and the auxiliary fixing plate is fixedly connected to the well wall.

[0009] Preferably, a plurality of main reinforcing channel steels are fixedly connected to the bottoms of the three main beam I-beams.

[0010] Preferably, a plurality of secondary reinforcing channel steels are connected between the two secondary beam channel steels.

[0011] Preferably, the load-bearing beam assembly is connected to the top ends of the car guide rails and the counterweight guide rails.

[0012] Preferably, a counterweight sheave is installed on the counterweight sheave beam.

[0013] The advantages and beneficial effects of the present invention are: providing a load-bearing structure for a large-load machine room-less freight elevator, which has a reasonable structure, can effectively ensure the overall structural strength of the load-bearing beam, improve the bending strength of the load-bearing beam, and has the advantages of low manufacturing cost and low installation difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the present utility model.

[0015] Figure 2 yes Figure 1 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0016] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0017] The technical solution specifically implemented in this utility model is:

[0018] like Figure 1 and Figure 2 As shown, a load-bearing structure of a large-load machine-room-less freight elevator includes a load-bearing beam assembly, wherein the load-bearing beam assembly includes a main load-bearing beam 10, a secondary load-bearing beam 20, a main reinforcing diagonal brace 30 and a secondary reinforcing diagonal brace 40;

[0019] The main load-bearing beam 10 is equipped with a main engine 1, a counterweight sheave beam 2, a car rope end assembly 3 and a counterweight rope end assembly 4. The counterweight sheave beam 2 is equipped with a counterweight sheave 5. The main load-bearing beam 10 includes three parallel main beam I-beams 11.

[0020] The main reinforcing braces 30 are provided in pairs, the top of each main reinforcing brace 30 is fixedly connected to the bottom of the main load-bearing beam 10, and the bottom of each main reinforcing brace 30 is fixedly connected to a main fixing plate 31, and the main fixing plate 31 is fixedly connected to the shaft wall;

[0021] The auxiliary load-bearing beam 20 is spaced apart from the main load-bearing beam 10 and is arranged opposite to it. The top of the auxiliary load-bearing beam 20 is installed with the car rope sheave 6 and the speed governor 7, and the auxiliary load-bearing beam 20 includes two auxiliary beam channel steels 21;

[0022] The auxiliary reinforcing braces 40 are provided in two pieces, the top end of each auxiliary reinforcing brace 40 is fixedly connected to the bottom of the auxiliary load-bearing beam 20, and the bottom end of each auxiliary reinforcing brace 40 is fixedly connected to an auxiliary fixing plate 41, and the auxiliary fixing plate 41 is fixedly connected to the well wall.

[0023] The utility model discloses a load-bearing structure for a large-load machine-room-less freight elevator. By combining three main beam I-beams 11 to form a main load-bearing beam 10, the size of a single load-bearing beam is reduced, and the overall structural strength of the load-bearing beam can be effectively guaranteed. It replaces the existing method of using large-sized load-bearing beams to improve the load-bearing capacity, and has the advantages of low manufacturing cost and low installation difficulty. Moreover, the forces on the main engine 1, the traction suspension system, the guide device, etc. are all within the projection surface of the load-bearing structure, and there is no cantilever structure, thereby increasing stability and reliability. In addition, due to the ultra-large span of the load-bearing beam, the bending strength of the load-bearing beam is improved by arranging reinforcing diagonal braces.

[0024] Furthermore, a plurality of main reinforcing channel steels 12 are fixedly connected to the bottoms of the three main beam I-beams 11. By adopting the above solution, the structural strength of the main load-bearing beam 10 is further improved.

[0025] Furthermore, a plurality of secondary reinforcing channel steels 22 are connected between the two secondary beam channel steels 21. By adopting the above solution, the structural strength of the secondary load-bearing beam 20 is further improved.

[0026] Furthermore, the load-bearing beam assembly is connected to the top ends of the car guide rails and the counterweight guide rails. By adopting the above scheme, part of the force can be borne by means of the car guide rails and the counterweight guide rails.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A load-bearing structure for a heavy-duty machine-room-less freight elevator, characterized in that: It includes a load-bearing beam assembly, which includes a main load-bearing beam, a secondary load-bearing beam, a main reinforcing diagonal brace and a secondary reinforcing diagonal brace; The main engine, counterweight sheave beam, car rope end assembly and counterweight rope end assembly are installed on the top of the main load-bearing beam, and the main load-bearing beam includes three parallel main beam I-beams; The main reinforcing braces are provided in two pieces, the top end of each main reinforcing brace is fixedly connected to the bottom of the main load-bearing beam, and the bottom end of each main reinforcing brace is fixedly connected to a main fixing plate, and the main fixing plate is fixedly connected to the well wall; The auxiliary load-bearing beam is spaced apart from the main load-bearing beam and is arranged opposite to it. The top of the auxiliary load-bearing beam is installed with a car rope pulley and a speed limiter, and the auxiliary load-bearing beam includes two auxiliary beam channel steels; The auxiliary reinforcing braces are provided in two pieces, the top end of each auxiliary reinforcing brace is fixedly connected to the bottom of the auxiliary load-bearing beam, and the bottom end of each auxiliary reinforcing brace is fixedly connected to a auxiliary fixing plate, and the auxiliary fixing plate is fixedly connected to the well wall.

2. The load-bearing structure of the heavy-load machine-room-less freight elevator according to claim 1 is characterized in that: A plurality of main reinforcing channel steels are fixedly connected to the bottoms of the three main beam I-beams.

3. The load-bearing structure of the heavy-load machine-room-less freight elevator according to claim 1 is characterized in that: A plurality of auxiliary reinforcing channel steels are connected between the two auxiliary beam channel steels.

4. The load-bearing structure of the heavy-load machine-room-less freight elevator according to claim 1 is characterized in that: The load-bearing beam assembly is connected to the top ends of the car guide rails and the counterweight guide rails.

5. The load-bearing structure of the heavy-load machine-room-less freight elevator according to claim 1 is characterized in that: A counterweight rope sheave is installed on the counterweight rope sheave beam.

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