Combined tower crane balancing weight

Abstract

The utility model provides a combined tower crane balancing weight, which relates to the field of tower cranes, and comprises a mounting block, a mounting ring and a balancing weight combination block, the mounting block is fixedly connected with the mounting ring, the balancing weight combination block is in contact with the mounting block, the balancing weight combination block is composed of a plurality of weight increasing blocks, every two adjacent weight increasing blocks are in close contact, and the mounting ring is fixedly connected with the mounting block. The bottom face of each weight increasing block and the bottom face of the mounting block are each provided with two symmetrical wedge-shaped grooves, and the upper surface of each weight increasing block is fixedly connected with a sliding block. According to the combined type tower crane balancing weight, the arranged balancing weight combination block is composed of the multiple weight increasing blocks, the multiple weight increasing blocks can be detached, so that the size and weight of the weight increasing combination block are reduced, carrying and transportation are convenient, and through the arrangement of the first weight increasing cylinder, the second weight increasing cylinder, the third weight increasing cylinder, the fourth weight increasing cylinder and the weight increasing column, the combined type tower crane balancing weight can be detached; therefore, the weight of the weight increasing blocks is reduced, and the weight of each weight increasing block can be adjusted according to the requirements of the tower crane boom.

Description

Technical Field

[0001] This utility model relates to the field of tower crane technology, specifically a combined tower crane counterweight block. Background Technology

[0002] A tower crane is a lifting device specifically used on construction sites. It mainly consists of a foundation, tower body, lifting mechanism, slewing mechanism, electrical system, and safety protection devices. The counterweight materials of tower cranes are generally concrete counterweights and steel counterweights. Concrete counterweights have low production costs, large weight, and good stability, while steel counterweights are lightweight and easy to move, making them suitable for small and medium-sized tower cranes.

[0003] Common tower crane counterweights are usually composed of multiple counterweights combined together. Each counterweight is an integral structure with a large volume and weight, making it difficult to handle and disassemble individual counterweights. Moreover, the weight of the counterweight is fixed, making it difficult to adjust the weight of the counterweight according to the needs of the tower crane, resulting in low versatility. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a combined tower crane counterweight, which solves the problems mentioned in the background art.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a combined tower crane counterweight block, comprising an mounting block, a mounting ring, and a counterweight assembly block. The mounting block is fixedly connected to the mounting ring, and the counterweight assembly block is in contact with the mounting block. The counterweight assembly block is composed of multiple weight-adding blocks, with each pair of adjacent weight-adding blocks in close contact. Each weight-adding block and the mounting block have two symmetrical wedge-shaped grooves on their bottom surfaces. Each weight-adding block has a slider fixedly connected to its upper surface, and each slider is slidably connected to its adjacent wedge-shaped groove. Each weight-adding block has an insertion hole inside, and a first weight-adding cylinder is inserted into each insertion hole. Each first weight-adding cylinder has a... There is a second weight-adding cylinder, and a third weight-adding cylinder is inserted into the inside of each second weight-adding cylinder. A fourth weight-adding cylinder is inserted into the inside of each third weight-adding cylinder. A weight-adding column is inserted into the inside of each fourth weight-adding cylinder. A fixing block is fixedly connected to the front of each weight-adding block. A limit rod is inserted into the inside of each fixing block. A limit block is sleeved on the upper end of each limit rod. A limit plate is fixedly connected to the back of each limit block. An arc-shaped notch is opened on the outer surface of each limit plate. Two symmetrical arc-shaped blocks are engaged on the inner wall of each notch. The two uppermost positioning blocks are fixedly connected to the mounting block. Multiple positioning blocks below them are fixedly connected to the weight-adding blocks adjacent to them.

[0007] Furthermore, each slider is equal in length to the wedge groove, and each slider is in close contact with its adjacent wedge groove, which improves the stability of the weight-adding block and ensures that the weight-adding block can slide stably.

[0008] Furthermore, each slider is made of alloy steel plate and each weight block is made of cast iron, which makes the surface hardness of the slider and the weight block high and has good wear resistance.

[0009] Furthermore, the first, second, third, and fourth weight-adding cylinders and the weight-adding column have equal weights, and their outer surfaces are all made smooth. This facilitates the adjustment of the combined counterweights, reduces friction, and makes it easier to assemble and disassemble the first, second, third, and fourth weight-adding cylinders and the weight-adding column.

[0010] Furthermore, a handle is fixedly connected to the bottom end of each of the limiting rods, and a spring is fixedly connected between each handle and the limiting block adjacent to it. Each spring is in a static state, which ensures that the insertion rod can be stably inserted into the limiting block during operation, preventing it from falling off. Moreover, the elastic deformation of the spring can also reset the insertion rod.

[0011] Furthermore, each of the weight-adding blocks is fixedly connected to a fixing frame on its left and right sides. A baffle is slidably connected inside the fixing frame. A handle is fixedly connected to one side of each baffle. Each baffle contacts the first weight-adding cylinder that is closest to it, which limits the first, second, third, and fourth weight-adding cylinders and the weight-adding column to prevent them from falling off. The baffle can also be removed from the fixing frame by pulling the handle, which facilitates the disassembly and assembly of the first, second, third, and fourth weight-adding cylinders and the weight-adding column.

[0012] Furthermore, the upper surface of the mounting block has a hidden compartment, inside which a push rod is placed. The upper surface of the mounting block is hinged to a top cover by four spring hinges. The top cover is located above the hidden compartment, and there is a gap between the top cover and the mounting ring. The push rod can be removed by opening the hidden compartment. The weight of the counterweight assembly block can be adjusted according to the counterweight requirements by using the push rod.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This modular tower crane counterweight block consists of multiple weight-adding blocks, all of which are detachable, thus reducing the volume and weight of the counterweight block and facilitating handling and transportation. The first, second, third, and fourth weight-adding cylinders and the weight-adding column are not only detachable to reduce the weight of the counterweight block, but the weight of each weight-adding block can also be adjusted according to the needs of the tower crane boom. This allows for both small and large reductions in the weight of the counterweight block, thus solving the problems mentioned in the background technology.

[0015] 2. This modular tower crane counterweight block, through the setting of multiple sets of baffles, can not only limit the movement of multiple sets of first, second, third, and fourth counterweight cylinders and counterweight columns, but also facilitate the removal of baffles and quick release of the limits. By opening the top cover, the push rod in the hidden compartment can be taken out, and the first, second, third, and fourth counterweight cylinders and counterweight columns can be pushed out through the push rod. The notch of the limiting plate limits the two sets of arc plates, which can limit the counterweight block in the left and right directions on the one hand, and increase the contact area between the arc plates and the limiting plate on the other hand, increase the bearing capacity of the limiting plate in the left and right directions, and improve the stability of the counterweight block. Attached Figure Description

[0016] Figure 1 This is a front view of the counterweight assembly block of this utility model;

[0017] Figure 2 This is a cross-sectional view of the front view of the weight-adding block of this utility model;

[0018] Figure 3 This is a cross-sectional view of the right side view of the weight-adding block of this utility model;

[0019] Figure 4 This is a schematic diagram of the limiting disc structure of this utility model;

[0020] Figure 5 This is a partial structural diagram of the present utility model.

[0021] The components are as follows: 1. Mounting block; 2. Mounting ring; 3. Counterweight assembly block; 4. Weight-adding block; 5. Wedge groove; 6. Slider; 7. Insertion hole; 8. First weight-adding cylinder; 9. Second weight-adding cylinder; 10. Third weight-adding cylinder; 11. Fourth weight-adding cylinder; 12. Weight-adding column; 13. Fixing block; 14. Limiting rod; 15. Limiting block; 16. Limiting plate; 17. Notch; 18. Arc block; 19. Handle; 20. Spring; 21. Fixing frame; 22. Baffle; 23. Hidden compartment; 24. Push rod; 25. Top cover. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] See Figure 1-5 A modular tower crane counterweight block includes a mounting block 1, a mounting ring 2, and a counterweight assembly block 3. The mounting block 1 is fixedly connected to the mounting ring 2, and the mounting block 1 and mounting ring 2 are installed at the boom of the tower crane. The counterweight assembly block 3 is in contact with the mounting block 1 and is composed of multiple weight-adding blocks 4. Every two adjacent weight-adding blocks 4 are in close contact. The width of the weight-adding blocks 4 is equal to the width of the mounting block 1. Each weight-adding block 4 and the bottom surface of the mounting block 1 have two symmetrical wedge-shaped grooves 5. A slider 6 is fixedly connected to the upper surface of each weight-adding block 4. Each slider 6 has the same length as the wedge-shaped groove 5, and each slider 6 is in close contact with its adjacent wedge-shaped groove 5, which improves the stability of the weight-adding block 4 and ensures that the weight-adding block 4 can slide stably. The sliders 6 are all made of alloy steel plate, and each weight block 4 is made of cast iron, which makes the surface hardness of the sliders 6 and weight blocks 4 high and has good wear resistance. Each weight block 4 has a fixed frame 21 fixedly connected to its left and right sides. A baffle 22 is slidably connected inside the fixed frame 21. A handle is fixedly connected to one side of each baffle 22. Each baffle 22 contacts the first weight cylinder 8 that is close to it, which plays a limiting role in preventing the first weight cylinder 8, the second weight cylinder 9, the third weight cylinder 10, the fourth weight cylinder 11 and the weight column 12 from falling off. The baffle 22 can also be removed from the fixed frame 21 by pulling the handle, which facilitates the disassembly and assembly of the first weight cylinder 8, the second weight cylinder 9, the third weight cylinder 10, the fourth weight cylinder 11 and the weight column 12.

[0024] Each slider 6 is slidably connected to its adjacent wedge-shaped groove 5. Each weight block 4 has an insertion hole 7 inside, and a first weight cylinder 8 is inserted into each insertion hole 7. A second weight cylinder 9 is inserted into each first weight cylinder 8, a third weight cylinder 10 is inserted into each second weight cylinder 9, a fourth weight cylinder 11 is inserted into each third weight cylinder 10, and a weight column 12 is inserted into each fourth weight cylinder 11. The weights of the first weight cylinder 8, second weight cylinder 9, third weight cylinder 10, fourth weight cylinder 11, and weight column 12 are equal, and their outer surfaces are all made smooth. This facilitates the adjustment of the combined counterweight and reduces friction, making it easier to assemble and disassemble the first weight cylinder 8, second weight cylinder 9, third weight cylinder 10, fourth weight cylinder 11, and weight column 12.

[0025] Each weight-adding block 4 has a fixed fixing block 13 on its front. A limiting rod 14 is inserted inside each fixing block 13. A limiting block 15 is sleeved on the upper end of each limiting rod 14. A limiting plate 16 is fixedly connected to the back of each limiting block 15. An arc-shaped notch 17 is formed on the outer surface of each limiting plate 16. Two symmetrical arc-shaped blocks 18 are engaged on the inner wall of each notch 17. The two uppermost positioning blocks are fixedly connected to the mounting block 1. Multiple positioning blocks below them are fixedly connected to the adjacent weight-adding blocks 4. A handle 19 is fixedly connected to the bottom end of each limiting rod 14. Each handle 19 is fixedly connected to the adjacent limiting block 15. A fixed connection is provided with springs 20, each of which is in a static state. During operation, this ensures that the insertion rod can be stably inserted into the limiting block 15 to prevent it from falling off. Moreover, the elastic deformation of the springs 20 can also reset the insertion rod. A hidden compartment 23 is provided on the upper surface of the mounting block 1. A push rod 24 is placed inside the hidden compartment 23. A top cover 25 is hinged to the upper surface of the mounting block 1 by four springs 20. The top cover 25 is located above the hidden compartment 23. There is a gap between the top cover 25 and the mounting ring 2. When the top cover 25 of the hidden compartment is opened, the top cover 25 does not contact the mounting ring 2. The push rod 24 can be taken out by opening the hidden compartment 23. The weight of the counterweight assembly block 3 can be adjusted according to the counterweight requirements by using the push rod 24.

[0026] In use, the counterweight assembly 3 is first installed onto the boom of the tower crane using mounting block 1 and mounting ring 2. The counterweight assembly 3 consists of multiple weight-adding blocks 4. When a small adjustment of the weight of the counterweight assembly 3 is required, first pull the baffle 22 upward and remove it from the fixing bracket 21 to release the limit. Then, open the top cover 25 and remove the push rod 24 from the hidden compartment 23. Then, use the push rod 24 to remove the first weight-adding cylinder 8, the second weight-adding cylinder 9, the third weight-adding cylinder 10, the fourth weight-adding cylinder 11, and the weight-adding column 12 as needed, thereby achieving a small reduction in the weight of the counterweight assembly 3. When a large adjustment of the weight of the counterweight assembly 3 is required, one of the handles 19 can be pressed downward as needed. The handle 19 drives the limiting rod 14 down, removing the limiting rod 14 from the limiting block 15, thereby releasing the limiting block 15 and the limiting plate 16. The limiting plate 16 is then removed, releasing the limiting on the two sets of arc plates. Then the weight-adding block 4 is removed, thus significantly reducing the weight of the counterweight assembly 3. When handling and transportation are required, multiple handles 19 are pressed down to release the limiting on multiple limiting plates 16. Then the multiple limiting plates 16 are removed, releasing the limiting on the left and right directions of multiple weight-adding blocks 4. The counterweight assembly 3 can then be decomposed into multiple weight-adding blocks 4, reducing the weight and volume of the counterweight assembly 3 during handling, facilitating transportation and handling, and thus solving the problems mentioned in the background art.

[0027] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A modular tower crane counterweight block, comprising a mounting block (1), a mounting ring (2), and a counterweight assembly block (3), characterized in that: The mounting block (1) is fixedly connected to the mounting ring (2), and the counterweight assembly block (3) is in contact with the mounting block (1). The counterweight assembly block (3) is composed of multiple weight-adding blocks (4). Each pair of weight-adding blocks (4) that are close to each other are in close contact. Each weight-adding block (4) and the bottom surface of the mounting block (1) have two symmetrical wedge-shaped grooves (5). Each weight-adding block (4) has a slider (6) fixedly connected to its upper surface. Each slider (6) is slidably connected to its adjacent wedge-shaped groove (5). Each weight-adding block (4) has an insertion hole (7) inside. Each insertion hole (7) has a first weight-adding cylinder (8) inserted inside. Each first weight-adding cylinder (8) has a second weight-adding cylinder (9) inserted inside. Each second weight-adding cylinder (9) has a third weight-adding cylinder (10) inserted inside. Each third weighting cylinder (10) has a fourth weighting cylinder (11) inserted inside, each fourth weighting cylinder (11) has a weighting column (12) inserted inside, each weighting block (4) has a fixed block (13) fixedly connected to its front side, each fixed block (13) has a limit rod (14) inserted inside, each limit rod (14) has a limit block (15) sleeved on its upper end, each limit block (15) has a limit plate (16) fixedly connected to its back side, each limit plate (16) has an arc-shaped notch (17) on its outer surface, each notch (17) has two symmetrical arc blocks (18) snapped into its inner wall, the two uppermost positioning blocks are fixedly connected to the mounting block (1), and the multiple positioning blocks below them are fixedly connected to the weighting blocks (4) that are close to them.

2. The combined tower crane counterweight block according to claim 1, characterized in that: Each slider (6) is equal in length to the wedge groove (5), and each slider (6) is in close contact with the wedge groove (5) adjacent to it, which improves the stability of the weight block (4) and ensures that the weight block (4) can slide stably.

3. The combined tower crane counterweight block according to claim 1, characterized in that: Each slider (6) is made of alloy steel plate, and each weight block (4) is made of cast iron, so that the surface hardness of the slider (6) and the weight block (4) is high and has good wear resistance.

4. A combined tower crane counterweight block according to claim 1, characterized in that: The first weight-adding cylinder (8), the second weight-adding cylinder (9), the third weight-adding cylinder (10), the fourth weight-adding cylinder (11), and the weight-adding column (12) have equal weights and their outer surfaces are all smooth. This is beneficial for adjusting the weight of the combined counterweights, reducing friction, and facilitating the assembly and disassembly of the first weight-adding cylinder (8), the second weight-adding cylinder (9), the third weight-adding cylinder (10), the fourth weight-adding cylinder (11), and the weight-adding column (12).

5. A combined tower crane counterweight block according to claim 1, characterized in that: Each of the limiting rods (14) is fixedly connected to a handle (19) at its bottom end. Each handle (19) is fixedly connected to a limiting block (15) adjacent to it by a spring (20). Each spring (20) is in a static state. During operation, it ensures that the insertion rod can be stably inserted into the limiting block (15) to avoid falling off. Moreover, the elastic deformation of the spring (20) can reset the insertion rod.

6. A combined tower crane counterweight according to claim 1, characterized in that: Each of the weight-adding blocks (4) is fixedly connected to a fixing frame (21) on its left and right sides. A baffle (22) is slidably connected inside the fixing frame (21). A handle is fixedly connected to one side of each baffle (22). Each baffle (22) contacts the first weight-adding cylinder (8) that is close to it, and plays a limiting role for the first weight-adding cylinder (8), the second weight-adding cylinder (9), the third weight-adding cylinder (10), the fourth weight-adding cylinder (11) and the weight-adding column (12) to prevent them from falling off. By pulling the handle, the baffle (22) can be removed from the fixing frame (21), which makes it easy to disassemble and assemble the first weight-adding cylinder (8), the second weight-adding cylinder (9), the third weight-adding cylinder (10), the fourth weight-adding cylinder (11) and the weight-adding column (12).

7. A combined tower crane counterweight according to claim 1, characterized in that: The upper surface of the mounting block (1) is provided with a hidden compartment (23), and a push rod (24) is placed inside the hidden compartment (23). The upper surface of the mounting block (1) is hinged with a top cover (25) by four springs (20). The top cover (25) is located above the hidden compartment (23). There is a gap between the top cover (25) and the mounting ring (2). The push rod (24) can be taken out by opening the hidden compartment (23). The weight of the counterweight assembly block (3) can be adjusted according to the counterweight requirements by using the push rod (24).

Images