Freight elevator upper beam weight-increasing block
By designing a weight-adding block adapted to the structure of the freight elevator, and using a rigid right-angle structure and anti-slip materials, the problem of the weight-adding block being difficult to adjust quickly in the existing technology has been solved, achieving precise balance and stable operation of the elevator car weight, and improving the operating comfort of the freight elevator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- VOLKSELEVATOR ELEVATOR CHINA
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-31
AI Technical Summary
The existing method of combining the weight-adding blocks with the car structure is not conducive to rapid adjustment and maintenance, and it is difficult to adapt to changes in load and frequency in freight elevators, affecting the stability and comfort of elevator operation.
Design a weight-adding block structure, including a main body and a supporting part. The supporting part is a rigid structure that is directly mounted on the upper beam. The gap between the main body and the channel steel is less than 8mm. It adopts a rigid right-angle structure and the outer layer is made of anti-slip material. The weight-adding block is set in the middle of the upper beam to balance the weight. It is compatible with the structure of freight elevators and reduces vibration and noise.
It enables rapid installation and adjustment of the weight-adding blocks, improves the accuracy and flexibility of elevator car weight balance, reduces operating noise, and enhances elevator operation stability and comfort.
Smart Images
Figure CN224577826U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an improvement of the counterweight device for elevators, specifically a weight-increasing block for the upper beam of a freight elevator. Background Technology
[0002] Counterweight blocks are counterweight devices installed above the elevator car to increase the weight of the elevator car, balance the overall stability of the elevator operation, and balance the center of gravity of the elevator car to prevent the center of gravity from being too low. Counterweight blocks are usually fixed to the upper beam of the car frame, and the number of counterweight blocks is set according to the counterweight required by the elevator. In freight elevators, the load capacity of the elevator car is large, and due to the installation location, the frequency and weight of the transported goods will vary greatly. However, the main structure of the elevator is the same. Therefore, the number of counterweight blocks needs to be adjusted during use and maintenance. The existing way of combining counterweight blocks with the car structure is not conducive to quick adjustment and maintenance, so it needs to be improved. Utility Model Content
[0003] The purpose of this utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a weight-increasing block for the upper beam of a freight elevator.
[0004] The technical solution adopted by this utility model to solve the above problems is as follows: A weight-adding block is installed on the upper beam of the car frame. The upper beam is composed of two parallel channel steels arranged back-to-back, forming a support space between them. A traction sheave and a weight-adding block are installed within the support space. The weight-adding block is balanced within the support space and maintains a safe distance from the traction sheave. The weight-adding block has a main body and a supporting part. The supporting part is located on top of the main body, and the width of the main body corresponds to the width of the inner side of the support space. The width of the supporting part is greater than the width of the support space. The supporting part is a rigid structure and is supported on both sides on the upper surface of the channel steel. The weight-adding block is designed to fit the structural form of the freight elevator. Installation is convenient; it can be directly mounted on the upper beam for operation. Maintenance is convenient, and it does not affect elevator operation. The structure is stable and reliable, and it reduces vibration and noise during operation.
[0005] Furthermore, the gaps on both sides between the main body of the weight-adding block and the channel steel are less than 8mm. The vertical length of the main body of the weight-adding block is longer than the height of the channel steel. The supporting part of the weight-adding block forms a rigid right-angle structure with the main body, and the width of the supporting part does not exceed the width of the upper beam. The gap between the weight-adding block and the upper beam is controlled within a small range, effectively preventing vibration and swaying during installation. Therefore, no additional mounting parts are required; simply adjusting the balance is sufficient for operation, making it easier to adjust the weight balance of the elevator car and adapt to the operating requirements of freight elevators. Its length being longer than the height of the channel steel prevents the center of gravity of the weight-adding block from being too high, improving stability.
[0006] Furthermore, the weight-adding block includes a frame, a covering material, and an outer layer material. The frame is constructed by welding multiple steel bars or round steel bars perpendicularly to each other. The covering material encloses the frame to form the external structure of the weight-adding block. The overall shape of the covering material is "T"-shaped. The longitudinal and transverse lengths of the frame are the same as the longitudinal and transverse distances of the covering material, respectively. An outer layer material, made of anti-slip material, covers the outside of the covering material. The weight-adding block itself has good structural rigidity, facilitating configuration. The outer layer material serves as a protective material, preventing misalignment or displacement during operation, maintaining the weight-adding block in the predetermined position, and ensuring stable elevator operation.
[0007] Furthermore, the weight-adding blocks are positioned in the middle of the upper beam, with the center line of the upper beam as the center, and the weight is distributed evenly to both sides. The weight-adding blocks are arranged close together. Since freight elevators typically have two traction sheaves, the middle position of the upper beam has a relatively large space. Therefore, the weight-adding blocks are arranged along the center line of the upper beam to improve operational safety and avoid structural interference.
[0008] Compared with the prior art, this utility model has the following advantages and effects: This design is an improvement on the weight-adding block structure of a freight elevator, which is adapted to the working structure of the freight elevator, facilitates the adjustment of the counterweight, adapts to different working scenarios of freight elevators, does not require additional fasteners, improves the accuracy and freedom of counterweight balance adjustment, facilitates maintenance, reduces operating noise, and improves comfort. Attached Figure Description
[0009] Figure 1 This is a structural diagram of the weight-adding block on the upper beam.
[0010] Figure 2 This is a vertical structural diagram of the weight-adding block on the upper beam.
[0011] Figure 3 This is a schematic diagram of the weight-adding block.
[0012] Figure 4 This is a schematic diagram of the internal structure of the weight-adding block.
[0013] In the diagram: 1. Upper beam, 2. Channel steel, 3. Support space, 4. Weighting block, 5. Main body, 6. Supporting part, 7. Frame, 8. Packaging material, 9. Outer material. Detailed Implementation
[0014] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.
[0015] A weight-increasing block for the upper beam of a freight elevator is disclosed. The weight-increasing block 4 is installed on the upper beam 1 of the car frame. The upper beam 1 is composed of two parallel channel steels 2 arranged back to back, forming a support space 3 between the channel steels 2. A traction rope sheave and the weight-increasing block 4 are installed in the support space 3. The weight-increasing block 4 is balanced in the support space 3 and maintains a safe distance from the traction rope sheave. The weight-increasing block 4 has a main body part 5 and a support part 6. The support part 6 is located on the upper part of the main body part 5. The width of the main body part 5 corresponds to the width of the inner side of the support space 3. The width of the support part 6 is greater than the width of the support space 3. The support part 6 is a rigid structure and is supported on both sides on the upper surface of the channel steel 2.
[0016] The gaps on both sides between the main body 5 of the weight-increasing block 4 and the channel steel 2 are less than 8mm. The vertical length of the main body 5 of the weight-increasing block 4 is longer than the height of the channel steel 2. The supporting part 6 of the weight-increasing block 4 forms a rigid right-angle structure with the main body 5. The width of the supporting part 6 does not exceed the width of the upper beam 1.
[0017] The weight-adding block 4 includes a frame 7, a covering material 8, and an outer layer material 9. The frame 7 is composed of multiple steel bars or round steel bars welded and fixed perpendicularly to each other. The covering material 8 covers the frame 7 to form the external structure of the weight-adding block 4. The overall shape of the covering material 8 is "T". The longitudinal length and transverse length of the frame 7 are the same as the longitudinal distance and transverse distance of the covering material 8, respectively. The outer layer material 9 is used to cover the outside of the covering material 8. The outer layer material 9 is made of anti-slip material.
[0018] The weight-adding blocks 4 are located in the middle of the upper beam 1, with the center line of the upper beam 1 as the center, and the weight is distributed evenly on both sides. The weight-adding blocks 4 are arranged close to each other.
[0019] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary rather than restrictive in all respects. The scope of this invention is defined by the claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0020] Furthermore, it should be understood that although this specification describes the embodiments, not every embodiment contains only one independent technical solution. This description method is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A weight block for an upper beam of an elevator, the weight block (4) being arranged in an upper beam (1) of a car frame, characterized in that: The upper beam (1) is composed of two parallel channel steels (2) facing away from each other, forming a support space (3) between the channel steels (2). A traction rope wheel and a weight block (4) are set in the support space (3). The weight block (4) is balanced in the support space (3) and maintains a safe distance from the traction rope wheel. The weight block (4) has a main body (5) and a support part (6). The support part (6) is set on the upper part of the main body (5). The width of the main body (5) corresponds to the width of the inner side of the support space (3). The width of the support part (6) is greater than the width of the support space (3). The support part (6) is a rigid structure and is supported on both sides on the upper surface of the channel steel (2).
2. The elevator hoistway weight of claim 1, wherein: The gaps on both sides between the main body (5) of the weight-adding block (4) and the channel steel (2) are less than 8mm. The vertical length of the main body (5) of the weight-adding block (4) is longer than the height of the channel steel (2). The support part (6) of the weight-adding block (4) forms a rigid right-angle structure with the main body (5). The width of the support part (6) does not exceed the width of the upper beam (1).
3. The elevator roof beam weight block of claim 2, wherein: The weight-adding block (4) includes a skeleton (7), a packaging material (8), and an outer layer material (9). The skeleton (7) is composed of multiple steel bars or round steel bars welded and fixed perpendicularly to each other. The packaging material (8) covers the skeleton (7) to form the external structure of the weight-adding block (4). The overall shape of the packaging material (8) is "T". The longitudinal length and transverse length of the skeleton (7) are the same as the longitudinal distance and transverse distance of the packaging material (8), respectively. The outer layer material (9) is wrapped around the outside of the packaging material (8). The outer layer material (9) is made of anti-slip material.
4. The elevator roof beam weight block of claim 1, wherein: The weight-adding blocks (4) are set in the middle of the upper beam (1), with the center line of the upper beam (1) as the center, and the weight is distributed evenly on both sides. The weight-adding blocks (4) are set close to each other.