Car frame structure applied to super-large-load goods elevator

Abstract

A car frame structure applied to an ultra-large load cargo elevator comprises a plurality of car frames arranged from front to back, each car frame comprises two car frame stand columns distributed left and right, a car frame lower beam with the two ends connected with the lower ends of the two car frame stand columns respectively and a car frame upper beam with the two ends connected with the tops of the two car frame stand columns respectively; the bottoms of all the car frame upper beams are jointly connected with two rope returning reinforcing structures, each rope returning reinforcing structure comprises two rope returning reinforcing beams, and the rope returning reinforcing beams are fixedly connected with all the car frame upper beams; a lower rope returning space is formed between the two rope returning reinforcing beams of the same rope returning reinforcing structure, at least six car frame rope returning wheels installed on different car frame upper beams respectively are arranged in each lower rope returning space, and the car frame rope returning wheels are installed at the bottoms of the car frame upper beams. According to the utility model, the stability of combined connection between the upper beams of the car frame is improved; and meanwhile, the rope returning reinforcing beam is used for protecting the car frame rope returning wheel, and the structural stability of the car frame is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, and particularly relates to a car frame structure applied to an extra-large load freight elevator. Background Art

[0002] With the acceleration of the urbanization process and the development of elevator technology, a large number of large-scale and high-rise factory buildings and other buildings have emerged and are equipped with elevators. With the increase in the number of floors and the development of industrialization, the load capacity requirements for freight elevators are also increasing. The elevator car frames of existing freight elevators are usually composed of multiple car frames.

[0003] Referring to the enhanced large-load freight elevator car frame disclosed in the technical solution of CN202020891904.9, it includes a main gantry frame and auxiliary gantry frames symmetrically distributed on both sides of the main gantry frame. Lower beams crossing the car bottom are respectively provided at the bottoms of the main gantry frame and the auxiliary gantry frames, and together with the bottom beam at the bottom of the car bottom, they support the car bottom; the top sides of the main gantry frame and the auxiliary gantry frames are connected into one body through main side beams; car return rope wheels are provided in the upper beams at the tops of the main gantry frame and the auxiliary gantry frames, and the car return rope wheels cooperate with the machine room return rope wheels and are synchronously towed by a traction machine.

[0004] The overall structure of this technical solution is compact and has high strength, which can effectively ensure the stable and reliable operation of the extra-large load freight elevator. However, there is a significant problem in the design of this technical solution: there is a lack of connection and positioning between the upper beam of the main gantry frame and the upper beam of the auxiliary gantry frame. When the car return rope wheel is stressed, it is easy to pull the relative deformation between the upper beam of the main gantry frame and the upper beam of the auxiliary gantry frame, which not only easily causes the displacement of the car return rope wheel but also affects the structural stability of the elevator car frame. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a car frame structure applied to an extra-large load freight elevator.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0007] A car frame structure applied to an extra-large load freight elevator includes a chassis and multiple car frames arranged in sequence from front to back. Each car frame includes two car frame columns distributed left and right, a car frame lower beam with both ends respectively connected to the lower ends of the two car frame columns, and a car frame upper beam with both ends respectively connected to the tops of the two car frame columns; the bottom of the chassis is connected to the tops of all the car frame lower beams; it is characterized in that: two return rope strengthening structures are commonly connected to the bottoms of all the car frame upper beams, the two return rope strengthening structures are respectively close to the two car frame columns, and each return rope strengthening structure includes two return rope strengthening beams, and the return rope strengthening beams are fixedly connected to all the car frame upper beams;

[0008] A lower rope return space is formed between two rope return reinforcement beams of the same rope return reinforcement structure. At least six car return rope wheels respectively installed on different upper car beams are arranged in each of the lower rope return spaces, and the car return rope wheels are installed on the bottom of the upper car beams.

[0009] In the present utility model, it further includes a reinforcement frame which simultaneously connects all car columns and is located between the upper car beam and the chassis.

[0010] In the present utility model, each of the upper car beams includes two upper car beam bodies arranged at intervals front and back. The two upper car beam bodies are respectively connected to the front and back sides of the car columns. An upper rope return space is formed between the two upper car beam bodies, and the wheel bodies of the car return rope wheels extend into the upper rope return space.

[0011] In the present utility model, both ends of the wheel axle of the car return rope wheel are respectively installed on the upper car beam body by U-shaped bolts.

[0012] In the present utility model, each of the upper car beams further includes at least two upper car beam connection plates which are simultaneously fixedly connected to the tops of the two upper car beam bodies. The at least two upper car beam connection plates are distributed from left to right.

[0013] In the present utility model, the upper car beam connection plate is located between two car return rope wheels on the same upper car beam, and the upper car beam connection plate can connect the middle positions of the two upper car beam bodies.

[0014] In the present utility model, both the rope return reinforcement beam and the upper car beam body are made of car channel steel.

[0015] In the present utility model, a plurality of car support plates are arranged in the grooves of the rope return reinforcement beam and the upper car beam body.

[0016] In the present utility model, a pull rod seat is arranged in the middle of the car column. Front lower inclined pull rods with lower ends inclined forward and downward and rear lower inclined pull rods with lower ends inclined backward and downward are respectively arranged at the front and rear ends of the pull rod seat. The upper ends of the front lower inclined pull rods and the rear lower inclined pull rods are both hinged to the pull rod seat, and the lower ends are both installed on the chassis through a lower pull rod rotating shaft.

[0017] In the present utility model, a lock ladder device is arranged at each of the left and right ends of each upper car beam.

[0018] Advantages of the present utility model: Two rope return reinforcement structures are jointly connected to the bottom of the upper beam of the car frame. Each rope return reinforcement structure includes two rope return reinforcement beams, and these rope return reinforcement beams are fixedly connected to all the upper beams of the car frame, thereby improving the stability of the combined connection between the upper beams of the car frame. Moreover, a lower rope return space is formed between the two rope return reinforcement beams of the same rope return reinforcement structure, and a car frame rope return wheel is provided in each lower rope return space. This arrangement not only optimizes the installation position of the car frame rope return wheel, allowing the rope return reinforcement beam to protect the car frame rope return wheel, but also further enhances the structural stability of the car frame, jointly improving the load-bearing capacity of the elevator car frame, enabling it to better meet the freight demand of extra-large loads. Description of the Drawings

[0019] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0020] Figure 1 Is a perspective view of the car frame structure;

[0021] Figure 2 Is a front view of the car frame structure;

[0022] Figure 3 Is a left view of the car frame structure;

[0023] Figure 4 Is a top view of the car frame structure. Specific Embodiments

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0025] It should be noted that if there are directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If this specific posture changes, then such directional indications will also change accordingly.

[0026] In addition, if there are descriptions such as "first" or "second" in the embodiments of the present utility model, the descriptions of "first" or "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0027] Referring to Figures 1-4 , a car frame structure applied to an extra-large load freight elevator, comprising a chassis 1, a reinforcing frame 2, and a plurality of car frames 3 arranged in a front-to-rear order. Each car frame 3 includes two car frame columns 31 arranged left and right, a car frame lower beam 32 with both ends connected to the lower ends of the two car frame columns 31 respectively, and a car frame upper beam 33 with both ends connected to the tops of the two car frame columns 31 respectively; the bottom of the chassis 1 is connected to the tops of all the car frame lower beams 32; the reinforcing frame 2 is connected to all the car frame columns 31 at the same time and is located between the car frame upper beam 33 and the chassis 1. The chassis 1 is used to combine and fix all the car frame lower beams 32 together, and then the reinforcing frame 2 is used to reinforce the car frame columns 31, thereby improving the structural stability of the entire freight elevator frame, enabling the entire freight elevator to withstand higher loads and meeting the usage requirements of an extra-large load freight elevator.

[0028] Furthermore, two rope return reinforcing structures are commonly connected to the bottoms of all the car frame upper beams 33. The two rope return reinforcing structures are respectively close to the two car frame columns 31. Each rope return reinforcing structure includes two rope return reinforcing beams 35, and the rope return reinforcing beams 35 are fixedly connected to all the car frame upper beams 33, improving the stability of the combined connection between the car frame upper beams 33; a lower rope return space is formed between the two rope return reinforcing beams 35 of the same rope return reinforcing structure. At least six car frame rope return wheels 36 respectively installed on different car frame upper beams 33 are provided in each lower rope return space. The car frame rope return wheels 36 are installed on the bottoms of the car frame upper beams 33, and the lower part of the wheel body of the car frame rope return wheel 36 locally crosses the bottom surface of the rope return reinforcing beam 35, so that the steel wire rope can be not interfered by the rope return reinforcing beam 35; the above structure makes most of the car frame rope return wheels 36 hidden in the lower rope return space, reducing the probability of the car frame rope return wheels 36 being damaged by external factors.

[0029] In this embodiment, there are eight car frames 3 arranged in a front-to-rear order. Among them, counting from the front to the back, the car frame upper beams 33 of the first, third, fourth, fifth, sixth, and eighth car frames 3 are provided with the car frame rope return wheels 36.

[0030] As a preferred embodiment, each upper car frame beam 33 includes two upper car frame beam bodies 331 arranged at intervals front and back. The two upper car frame beam bodies 331 are respectively connected to the front and back sides of the car frame columns 31. An upper rope return space is formed between the two upper car frame beam bodies 331. Both ends of the axle of the car frame rope return pulley are respectively installed on the upper car frame beam body 331 by U-bolts; the pulley body of the car frame rope return pulley 36 extends into the upper rope return space, so that the two upper car frame beam bodies 331 protect the upper part of the car frame rope return pulley 36, reducing the probability of the car frame rope return pulley 36 being damaged by external factors.

[0031] As a preferred embodiment, each upper car frame beam 33 further includes at least two upper car frame beam connecting plates 332 fixedly connecting the tops of the two upper car frame beam bodies 331 at the same time. The at least two upper car frame beam connecting plates 332 are distributed from left to right. The upper car frame beam connecting plate 332 is located between the two car frame rope return pulleys 36 on the same upper car frame beam 33. The upper car frame beam connecting plate 332 can connect the middle positions of the two upper car frame beam bodies 331, improving the structural stability of the upper car frame beam 33 and reducing the probability of the upper car frame beam 33 being deformed by force.

[0032] In this embodiment, both the rope return reinforcing beam 35 and the upper car frame beam body 331 are made of car frame channel steel. A plurality of car frame support plates 300 are provided in the grooves of the rope return reinforcing beam 35 and the upper car frame beam body 331, which are used to improve the structural strength of the rope return reinforcing beam 35 and the upper car frame beam body 331 and ensure the stability of the rope return reinforcing beam 35 and the upper car frame beam body 331.

[0033] In this embodiment, a pull rod seat 37 is provided in the middle of the car frame column 31. Front lower inclined pull rods 371 with lower ends inclined forward and downward and rear lower inclined pull rods 372 with lower ends inclined backward and downward are respectively provided at the front and rear ends of the pull rod seat 37. The upper ends of the front lower inclined pull rod 371 and the rear lower inclined pull rod 372 are both hinged on the pull rod seat 37, and the lower ends are both installed on the chassis 1 through a lower pull rod rotating shaft.

[0034] Two adjacent pull rod seats 37 front and back are jointly connected with a longitudinal support rod 373. The longitudinal support rod 373 is used to restrict the distance between two adjacent car frame columns 31 front and back, reducing the probability of the middle part of the car frame column 31 being deformed and bent.

[0035] In this embodiment, front upper inclined pull rods 374 with upper ends inclined forward and upward are respectively provided at the front ends of the upper parts of the pull rod seats 37. The lower ends of the front upper inclined pull rods 374 are hinged on the pull rod seats 37, and the upper ends are installed on the reinforcing frame 2 through an upper pull rod rotating shaft.

[0036] In this embodiment, at least three rear upper inclined tie rods 375 with the upper ends inclined backward and upward are provided at the rear ends of the tie rod seats 37. The lower ends of the rear upper inclined tie rods 375 are hinged to the tie rod seats 37, and the upper ends are installed on the reinforcement frame 2 by an upper tie rod rotating shaft.

[0037] In this embodiment, by providing the front lower inclined tie rod 371, the rear lower inclined tie rod 372, the longitudinal support rod 373, the front upper inclined tie rod 374 and the rear upper inclined tie rod 375, the connection strength between the respective carriages 3 can be effectively improved, the structural stability of the goods lift frame is enhanced, so that the entire goods lift can withstand a higher load and meet the use requirements of the extra-large load goods lift.

[0038] In this embodiment, the front lower inclined tie rod 371, the rear lower inclined tie rod 372, the front upper inclined tie rod 374 and the rear upper inclined tie rod 375 all include a tie rod body and an inclined pull screw fixed to one end of the tie rod body. A tie rod hinge hole is provided at the other end of the tie rod body, and a tie rod fitting hole corresponding to the tie rod hinge hole is provided on the tie rod seat 37. The screw end of the tie rod fixing bolt passes through the tie rod hinge hole and the tie rod fitting hole and is threadedly sleeved with a first tie rod nut; after tightening the first tie rod nut, the tie rod body cannot move; after loosening the first tie rod nut, the tie rod body can swing at an angle to facilitate meeting the installation requirements; tie rod insertion holes are provided on both the upper tie rod rotating shaft and the lower tie rod rotating shaft. The inclined pull screw passes through the tie rod insertion hole and is threadedly sleeved with a second tie rod nut for fixing the tie rod screw. By screwing the second tie rod nut, the tension of the front lower inclined tie rod 371, the rear lower inclined tie rod 372, the front upper inclined tie rod 374 and the rear upper inclined tie rod 375 can be adjusted. The first tie rod nut and the second tie rod nut are not shown in the drawings.

[0039] As a preferred embodiment, car guide shoe seats are provided at the left and right ends of the top of the car upper beam 33 and at the left and right ends of the bottom of the car lower beam 32. Elevator car guide shoes adapted to the car guide rails are provided on the car guide shoe seats.

[0040] In this embodiment, a lock ladder device 34 is provided at each of the left and right ends of each car upper beam 33. The lock ladder devices 34 at the left and right ends are arranged with a height offset in the vertical direction. The lock ladder device 34 includes a lock ladder fixing seat 341 installed on the car upper beam 33 and a lock ladder bolt 342 slidably installed on the lock ladder fixing seat 341. The lock ladder bolt 342 is used to be inserted into the fixed lock ladder hole 41 of the lock ladder seat 4 during maintenance to prevent accidental sliding of the carriage structure. The lock ladder seat 4 is installed on the car guide rail.

[0041] The above are only the preferred embodiments of the present invention. As long as the technical solutions that achieve the purpose of the present invention by basically the same means fall within the protection scope of the present invention.

Claims

1. A car frame structure applied to an extra-large load freight elevator, comprising a chassis (1) and a plurality of car frames (3) arranged in sequence from front to back. Each car frame (3) includes two car frame columns (31) distributed left and right, a car frame lower beam (32) with both ends connected to the lower ends of the two car frame columns (31) respectively, and a car frame upper beam (33) with both ends connected to the tops of the two car frame columns (31) respectively; the bottom of the chassis (1) is connected to the tops of all the car frame lower beams (32); it is characterized in that: Two rope return reinforcement structures are commonly connected to the bottom of all upper car frame beams (33). The two rope return reinforcement structures are respectively close to the two car frame columns (31). Each rope return reinforcement structure includes two rope return reinforcement beams (35), and the rope return reinforcement beams (35) are fixedly connected to all the upper car frame beams (33). A lower rope return space is formed between the two rope return reinforcement beams (35) of the same rope return reinforcement structure. At least six car frame rope return wheels (36) respectively installed on different upper car frame beams (33) are arranged in each lower rope return space. The car frame rope return wheels (36) are installed on the bottom of the upper car frame beams (33).

2. The car frame structure applied to an extra-large load freight elevator according to claim 1, characterized in that: An enhancement frame (2) is further included. The enhancement frame (2) is simultaneously connected to all the car frame columns (31) and is located between the upper car frame beam (33) and the chassis (1).

3. A car frame structure applied to an extra-large load freight elevator according to claim 1 or 2, characterized in that: Each upper car frame beam (33) includes two upper car frame beam bodies (331) arranged at intervals front and rear. The two upper car frame beam bodies (331) are respectively connected to the front and rear sides of the car frame column (31). An upper rope return space is formed between the two upper car frame beam bodies (331). The wheel body of the car frame rope return wheel (36) extends into the upper rope return space.

4. The car frame structure applied to an extra-large load freight elevator according to claim 3, characterized in that: Both ends of the axle of the car frame rope return wheel are respectively installed on the upper car frame beam body (331) by U-bolts.

5. The car frame structure applied to an extra-large load freight elevator according to claim 3, characterized in that: Each upper car frame beam (33) further includes at least two upper car frame beam connection plates (332) fixedly connecting the tops of the two upper car frame beam bodies (331). The at least two upper car frame beam connection plates (332) are distributed from left to right.

6. A car frame structure applied to an extra-large load freight elevator according to claim 5, characterized in that: The upper car frame beam connection plate (332) is located between the two car frame rope return wheels (36) on the same upper car frame beam (33), and the upper car frame beam connection plate (332) can connect the middle positions of the two upper car frame beam bodies (331).

7. A car frame structure applied to an extra-large load freight elevator according to claim 1, characterized in that: Both the rope return reinforcement beam (35) and the upper car frame beam body (331) are made of car frame channel steel.

8. A car frame structure applied to an extra-large load freight elevator according to claim 7, characterized in that: A plurality of car frame support plates (300) are arranged in the grooves of the rope return reinforcement beam (35) and the upper car frame beam body (331).

9. The car frame structure applied to an extra-large load freight elevator according to claim 1, characterized in that: A pull rod seat (37) is arranged in the middle of the car frame column (31). A front lower inclined pull rod (371) with the lower end inclined forward and downward and a rear lower inclined pull rod (372) with the lower end inclined backward and downward are respectively arranged at the front and rear ends of the pull rod seat (37). The upper ends of the front lower inclined pull rod (371) and the rear lower inclined pull rod (372) are both hinged to the pull rod seat (37), and the lower ends are both installed on the chassis (1) through a lower pull rod rotating shaft.

10. The car frame structure applied to an extra-large load freight elevator according to claim 1, wherein: A lock ladder device (34) is arranged at both the left and right ends of each upper car frame beam (33).

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