Goods elevator with machine room and capable of running stably

Abstract

The goods elevator comprises an elevator shaft, the machine room and a lift car, the machine room comprises two main spandrel girders and two counterweight auxiliary girders, the two main spandrel girders are both installed on the top of the machine room, the two counterweight auxiliary girders are both installed between the two main spandrel girders, a traction machine is installed on the main spandrel girder on one side, and a traction machine is installed on the counterweight auxiliary girders on the other side. A plurality of guide wheels are installed on the main bearing beam and the counter-weight auxiliary beam, a plurality of penetrating grooves corresponding to the guide wheels are formed in the machine room, a plurality of lift car wheels are installed on the top of the lift car, the lift car wheels are evenly distributed on the top of the lift car, the lift car wheels are symmetrically arranged in pairs, and a supporting frame is further installed on the lift car. The elevator car wheels are supported through the supporting frames, the two main guide rails are symmetrically arranged on the two sides of the elevator shaft, the counterweight frame is arranged between the two main guide rails on one side in a sliding mode, the counterweight wheels are rotationally arranged on the top of the counterweight frame, and the problem that stable operation of the cargo elevator cannot be guaranteed during operation of the cargo elevator is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, and particularly relates to an organic room freight elevator capable of running stably. Background Technique

[0002] Freight elevators are divided into two types: organic room traction freight elevators and machine-roomless traction freight elevators. As the name implies, an organic room traction freight elevator has a machine room located above the hoistway, while a machine-roomless traction freight elevator does not have a machine room. The advantage of a machine-roomless traction freight elevator is that it does not occupy building space and has a lower cost. The advantage of an organic room traction freight elevator is that it has a larger load capacity. Since the essential work of a freight elevator is to transport goods, more importance is attached to the requirement for load capacity. Therefore, the vast majority of freight elevators on the market are organic room traction freight elevators. The counterweight of a freight elevator is a device for balancing the weight of the elevator car. Usually, a certain counterweight is equipped on a freight elevator to balance the weight of the elevator and the loaded object to reduce the burden on the driving equipment. The rack carrying this counterweight is a counterweight frame with counterweight blocks, and the counterweight frame is an essential part of the freight elevator during counterweight operation.

[0003] Most of the existing freight elevators adopt a top-suspension structure. By installing car wheels at the top of the freight elevator to drive the freight elevator to run, most of the car wheels at the top of the freight elevator are arranged diagonally or oppositely. Due to the large area of the freight elevator, a single set of car wheels cannot ensure the stable operation of the freight elevator when pulling it. Especially when the freight elevator is running at full load, since the goods cannot be evenly placed everywhere in the freight elevator, there will be a problem that one side is heavy and the other side is light during the operation of the freight elevator, which further leads to the unstable operation of the freight elevator. In view of the above problems, a solution is proposed below. Content of the Utility Model

[0004] The purpose of the utility model is to provide an organic room freight elevator capable of running stably, which solves the problem that the existing freight elevator cannot ensure stable operation during operation mentioned in the above background technique.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] An organic room freight elevator capable of stable operation, comprising an elevator shaft, a machine room and a car. The machine room is installed at the upper part of the elevator shaft. The car is slidably arranged in the elevator shaft. The machine room includes two main load-bearing beams and two counterweight auxiliary beams. Both of the two main load-bearing beams are installed on the top of the machine room. Both of the two counterweight auxiliary beams are installed between the two main load-bearing beams. The main load-bearing beam and the counterweight auxiliary beam are integrally designed. A traction machine is installed on one side of the main load-bearing beam. A number of guide wheels are installed on both the main load-bearing beam and the counterweight auxiliary beam. A number of through grooves corresponding to the guide wheels are formed in the machine room. A plurality of car wheels are installed on the top of the car. Each of the car wheels is evenly distributed on the top of the car. Each of the car wheels is arranged in pairs symmetrically. A support frame is further installed on the car. Each of the car wheels is supported through each of the support frames. Two main guide rails are symmetrically arranged on both sides of the elevator shaft. A counterweight frame is slidably arranged between the two main guide rails on one side. A number of counterweight wheels are rotatably arranged on the top of the counterweight frame. Each of the counterweight wheels corresponds to the car wheels and the guide wheels. A steel wire rope is drivingly arranged on each of the counterweight wheels, car wheels, guide wheels and the traction machine.

[0007] Preferably, the support frame includes a first support plate and two second support plates. The first support plate is fixed on the top of the car. The first support plate is of a hollow structure. The two second support plates are respectively fixed on the top sides of both sides of the first support plate. The second support plate is of an inward concave structure. The car wheel is rotatably arranged between the first support plate and the second support plate.

[0008] Preferably, two support members are further installed between two adjacent main guide rails. A secondary guide rail is installed on the two support members. Guide shoes are symmetrically installed on the top side wall of the car. Both of the guide shoes are slidably arranged on the two secondary guide rails.

[0009] Preferably, a rope socket board is installed on both of the two counterweight auxiliary beams. One side of the steel wire rope passes through the counterweight wheel and is fixed to one side of the rope socket board. The other side of the steel wire rope passes through the car wheel and is fixed to the other side of the rope socket board.

[0010] Preferably, guide wheel guards corresponding to the guide wheels are installed on both the main load-bearing beam and the counterweight auxiliary beam.

[0011] Preferably, there are three groups of the car wheels in total. Each of the car wheels is distributed in a linear array.

[0012] Preferably, there are three counterweight wheels in total. Each of the counterweight wheels is evenly distributed on the top of the counterweight frame.

[0013] Beneficial effects: By installing three sets of car wheels on the top of the freight elevator, and the three sets of car wheels are respectively installed on the left and right sides and the middle of the top of the car, the car wheels are more stable when driving the car compared with the existing single set of car wheels. Each set of car wheels can drive the car smoothly, making the freight elevator move smoothly, safely and reliably when bearing a large load. Brief Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the embodiment;

[0015] Figure 2 is a schematic top view structure diagram of the embodiment for showing the machine room;

[0016] Figure 3 is a schematic top view structure diagram of the embodiment for showing the machine room with the guide wheel guard removed;

[0017] Figure 4 is a schematic structure diagram of the embodiment for showing the main guide rail and the counterweight frame;

[0018] Figure 5 is for the embodiment to show Figure 1 the enlarged structure diagram of A in;

[0019] Figure 6 is a schematic structure diagram of the embodiment for showing the support frame.

[0020] Reference numerals: 1, elevator shaft; 2, machine room; 3, car; 4, main load-bearing beam; 5, counterweight secondary beam; 6, traction machine; 7, guide wheel; 8, car wheel; 9, support frame; 10, main guide rail; 11, counterweight frame; 12, counterweight wheel; 13, steel wire rope; 14, support plate one; 15, support plate two; 16, support member; 17, secondary guide rail; 18, guide shoe; 19, rope socket plate; 20, guide wheel guard. Detailed Description of the Invention

[0021] As shown in Figures 1 to 6 , a machine-room freight elevator capable of running smoothly includes an elevator shaft 1, a machine room 2 and a car 3. The machine room 2 is installed at the upper part of the elevator shaft 1. The car 3 is slidably arranged in the elevator shaft 1. The machine room 2 includes two main load-bearing beams 4 and two counterweight secondary beams 5. The two main load-bearing beams 4 are both installed on the top of the machine room 2. The two counterweight secondary beams 5 are both installed between the two main load-bearing beams 4. The main load-bearing beam 4 and the counterweight secondary beam 5 are integrally designed. Designing the main load-bearing beam 4 and the counterweight secondary beam 5 as an integral structure makes the structure of the machine room 2 more stable.

[0022] On one side of the main load-bearing beam 4, a traction machine 6 is installed. A number of guide wheels 7 are installed on both the main load-bearing beam 4 and the counterweight secondary beam 5. A number of through grooves corresponding to the guide wheels 7 are provided on the machine room 2. A plurality of car wheels 8 are installed on the top of the car 3. A support frame 9 is also installed on the car 3. Each car wheel 8 is supported through each support frame 9. On both sides of the elevator shaft 1, two main guide rails 10 are symmetrically arranged. A counterweight frame 11 is slidably arranged between the two main guide rails 10 on one side. A plurality of counterweight wheels 12 are rotatably arranged on the top of the counterweight frame 11. Each counterweight wheel 12 corresponds to the car wheel 8 and the guide wheel 7. A steel wire rope 13 is drivingly arranged on each counterweight wheel 12, car wheel 8, guide wheel 7 and the traction machine 6. When it is necessary to drive the car 3 to move up and down, the traction machine 6 can be started. The traction machine 6 can drive the steel wire rope 13 to transmit. Through the transmission of the steel wire rope 13, the counterweight frame 11 that counterweights the car 3 can slide in the main guide rail 10, and the reverse movement of the car 3 can be realized through the sliding of the counterweight frame 11.

[0023] Rope socket plates 19 are installed on both counterweight secondary beams 5. One side of the steel wire rope 13 passes through the counterweight wheel 12 and is fixed to one side of the rope socket plate 19. The other side of the steel wire rope 13 passes through the car wheel 8 and is fixed to the other side of the rope socket plate 19. The two ends of the steel wire rope 13 are fixed through the two rope socket plates 19 respectively. The two ends of the rope socket plate 19 are respectively connected to the counterweight wheel 12 and the car wheel 8 to realize transmission. After the steel wire rope 13 is fixed, by starting the traction machine 6, one end of the steel wire rope 13 can be contracted and the other end can be extended, realizing the movement of the car 3 and the counterweight frame 11.

[0024] The support frame 9 includes a first support plate 14 and two second support plates 15. The first support plate 14 is fixed on the top of the car 3. The first support plate 14 is of a hollow structure. The two second support plates 15 are respectively fixed on the top sides of the first support plate 14. The second support plate 15 is of an inwardly concave structure. The car wheel 8 is rotatably arranged between the first support plate 14 and the second support plate 15. The car wheel 8 is rotatably arranged inside the first support plate 14 through connecting rods on both sides. By installing the second support plate 15 on the top of the first support plate 14, the car wheel 8 can be supported. The diameter of the second support plate 15 is smaller than that of the car wheel 8 to prevent the steel wire rope 13 from being interfered and worn due to the second support plate 15 during the transmission process.

[0025] Each car wheel 8 is evenly distributed on the top of the car 3. Each car 3 wheel is arranged in a pairwise symmetric manner. There are three groups of car wheels 8 in total. Each car wheel 8 is arranged in a linear array. By installing three groups of car wheels 8 on the top of the car 3, and the three groups of car wheels 8 are respectively installed on the left and right sides and the middle of the top of the car 3, the car wheels 8 are more stable when driving the car 3 to move compared with the existing one group of car wheels 8. Each group of car wheels 8 can stably drive the car 3 to move, making the freight elevator move smoothly, safely and reliably when bearing a large load.

[0026] There are three counterweight wheels 12 in total. Each pair of counterweight wheels 12 is evenly distributed on the top of the counterweight frame 11. By installing three counterweight wheels 12 on the top of the counterweight frame 11, the three counterweight wheels 12 respectively correspond to the guide wheels 7. Through the rotation of each guide wheel 7, the synchronous lifting of each counterweight wheel 12 can be realized. Since the load of the freight elevator is relatively large, the weight of the counterweight frame 11 of its counterweight is also relatively heavy. The three counterweight wheels 12 drive the counterweight frame 11 to move synchronously, making the movement of the counterweight frame 11 more stable.

[0027] Two support members 16 are also installed between two adjacent main guide rails 10. A secondary guide rail 17 is installed on the two support members 16. Guide shoes 18 are symmetrically installed on the top side wall of the car 3. The two guide shoes 18 are both slidably arranged on the two secondary guide rails 17. By installing the guide shoes 18 on the side wall of the car 3, the cooperation between the guide shoes 18 and the secondary guide rails 17 enables the car 3 to drive the guide shoes 18 to slide on the secondary guide rails 17 during the movement process. Through the guide shoes 18, the movement of the car 3 is made more stable.

[0028] Working principle: When it is necessary to drive the car 3 to move, the traction machine 6 can be started. The traction machine 6 will drive the steel wire rope 13 to be transmitted. Through the guide wheels 7 on the main load-bearing beam 4 and the counterweight secondary beam 5, the steel wire rope 13 can be connected to the car wheels 8 on the top of the car 3 and the counterweight wheels 12 on the top of the counterweight frame 11. When it is necessary to move the car 3 upward, the traction machine 6 can drive the steel wire rope 13 connected to the car wheels 8 to be tightened. The steel wire rope 13 will extend towards the side close to the counterweight frame 11, enabling the counterweight frame 11 to move downward by gravity. The design of multiple groups of car wheels 8 and guide shoes 18 on the top of the car 3 makes the operation of the car 3 more stable.

[0029] Guide wheel guards 20 corresponding to the guide wheels 7 are installed on both the main load-bearing beam 4 and the counterweight secondary beam 5. By installing the guide wheel guards 20 on the top of the guide wheels 7, the guide wheels 7 can be protected.

Claims

1. A machine room freight elevator capable of running smoothly, comprising an elevator shaft (1), a machine room (2) and a car (3), characterized in that: The machine room (2) is installed at the upper end of the elevator shaft (1), and the car (3) is slidably arranged in the elevator shaft (1). The machine room (2) includes two main load-bearing beams (4) and two counterweight sub-beams (5). The two main load-bearing beams (4) are installed on the top of the machine room (2), and the two counterweight sub-beams (5) are installed between the two main load-bearing beams (4). The main load-bearing beams (4) and the counterweight sub-beams (5) are of an integrated design. A traction machine (6) is installed on one side of the main load-bearing beam (4). The main load-bearing beam (4) and the counterweight sub-beam (5) are installed with a plurality of guide wheels (7). The machine room (2) is provided with a plurality of through grooves corresponding to the guide wheels (7). The top of the car (3) is provided with a plurality of car wheels. (8), the wheels of each car (3) are evenly distributed on the top of the car (3), and the car wheels (8) are symmetrically arranged in pairs. A support frame (9) is also installed on the car (3), and each car wheel (8) is supported by each support frame (9). Two main guide rails (10) are symmetrically arranged on both sides of the elevator shaft (1), and a counterweight frame (11) is slidably arranged between the two main guide rails (10) on one side. A plurality of counterweight wheels (12) are rotatably arranged on the top of the counterweight frame (11), and each counterweight wheel (12) corresponds to the car wheel (8) and the guide wheel (7). A steel wire rope (13) is arranged on each counterweight wheel (12), the car wheel (8), the guide wheel (7) and the traction machine (6) for transmission.

2. A machine room freight elevator capable of stable operation according to claim 1, characterized in that: The support frame (9) comprises a support plate 1 (14) and two support plates 2 (15); the support plate 1 (14) is fixed on the top of the car (3); the support plate 1 (14) is a hollow structure; the two support plates 2 (15) are respectively fixed on the tops of both sides of the support plate 1 (14); the support plate 2 (15) is a concave structure; the car wheel (8) is rotatably arranged between the support plate 1 (14) and the support plate 2 (15).

3. A machine room freight elevator capable of stable operation according to claim 1, characterized in that: Two support members (16) are installed between two adjacent main rails (10), and auxiliary guide rails (17) are installed on the two support members (16). Guide shoes (18) are symmetrically installed on the top side wall of the car (3), and the two guide shoes (18) are slidably arranged on the two auxiliary guide rails (17).

4. A machine room freight elevator capable of stable operation according to claim 1, characterized in that: Rope head plates (19) are installed on both counterweight subbeams (5), the steel wire rope (13) on one side passes through the counterweight wheel (12) and is fixed to the rope head plate (19) on one side, and the steel wire rope (13) on the other side passes through the car (3) wheel and is fixed to the rope head plate (19) on the other side.

5. The machine room freight elevator capable of stable operation according to claim 1, characterized in that: The main load-bearing beam (4) and the counterweight auxiliary beam (5) are both provided with guide wheel guards (20) corresponding to the guide wheels (7).

6. The machine room freight elevator capable of stable operation according to claim 2, characterized in that: The car wheels (8) are provided with three groups in total, and the car wheels (8) are distributed in a linear array.

7. The machine room freight elevator capable of stable operation according to claim 1, characterized in that: There are three counterweight wheels (12) in total, and each of the counterweight wheels (12) is evenly distributed on the top of the counterweight frame (11).

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