Adjustable counterweight device of tower crane

Abstract

The utility model relates to the technical field of tower cranes, and discloses a tower crane adjustable counterweight device which comprises a tower crane, a connecting block and first storage grooves, the connecting block is installed above the tower crane, the first storage grooves are formed in the two sides of the interior of the connecting block, and a second storage groove is formed in the middle of the interior of the connecting block. Sliding devices are installed in the first storage groove and the second storage groove correspondingly, each sliding device comprises a fixing frame, a fixing block and a first sliding groove, the multiple fixing frames are arranged in the first storage groove, the fixing blocks are installed above the fixing frames, and the fixing blocks are arranged in the first sliding grooves; the first sliding groove is formed in the inner side of the tower crane, and pulleys are installed on the two sides of the lower portion of the fixing frame. The balance weight of the device can be adjusted according to the requirements of the device, so that the application range of the device is wider.

Description

Technical Field

[0001] The present utility model relates to the technical field of tower cranes, and specifically relates to an adjustable counterweight device for a tower crane. Background Technique

[0002] In construction projects, tower cranes are frequently used construction tools. Due to limited project site space, during the dismantling process of the tower crane, the tower needs to be lowered to the disassembly height; due to project site reasons, the tower crane cannot rotate freely 360°, and the standing position of the truck crane is restricted.

[0003] The existing boom of the tower crane needs to be shortened or lengthened on the original basis. The change in the boom length will inevitably lead to a change in the counterweight configuration, and it is inconvenient to adjust the counterweight of the device according to requirements, affecting the scope of use of the device. In view of the above situation, technological innovation is carried out on the existing tower crane. For this reason, we propose an adjustable counterweight device for a tower crane. Content of the Utility Model

[0004] The purpose of the present utility model is to provide an adjustable counterweight device for a tower crane to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: An adjustable counterweight device for a tower crane, including a tower crane, a connection block, and a first storage tank. A connection block is installed above the tower crane. First storage tanks are provided on both sides inside the connection block. A second storage tank is provided at the middle position inside the connection block. Sliding devices are installed inside both the first storage tank and the second storage tank;

[0006] The sliding device includes a fixed frame, a fixed block, and a first sliding groove. Multiple fixed frames are provided inside the first storage tank. A fixed block is installed above the fixed frame. The fixed block is arranged inside the first sliding groove. The first sliding groove is arranged inside the tower crane. Pulleys are installed on both sides below the fixed frame. The pulleys are installed inside a second sliding groove. First gears are provided at both ends inside the fixed frame. First connecting columns are installed on both sides of the first gear. The outer sides of the first connecting columns are connected to the inner wall of the fixed frame through first bearings. A second gear is provided on the right side of the first gear. Second connecting columns are installed on both sides of the second gear. The upper second connecting column is connected to the inner wall of the first storage tank through a second bearing. The lower second connecting column penetrates through a groove below and is connected to a servo motor. The servo motor is installed inside the tower crane. The outer sides of multiple first gears and the outer sides of the second gears penetrate through a fixed groove into the inside of the fixed groove. The fixed groove is installed inside a connecting plate. The connecting plate is connected to the inner wall of the connection block. Multiple counterweight blocks are provided inside the second storage tank. Tooth blocks are installed on both sides of the counterweight block. A cylinder is installed between two fixed frames.

[0007] The tower crane and the connecting block are perpendicularly arranged, and the connecting blocks are integrally arranged between the first storage tank and the second storage tank.

[0008] The fixing frame is slidably connected to the first storage tank, and the fixing frame is fixedly connected to the fixing block and the pulley.

[0009] The fixing block is slidably connected to the first chute, and the first chute is integrally arranged with the connecting block.

[0010] The pulley is slidably connected to the second chute, and the second chute is integrally arranged with the connecting block.

[0011] The first gear is fixedly connected to the first connecting column, and the first connecting column is rotatably connected to the first bearing.

[0012] A plurality of the first gears are meshed, and the rightmost first gear is meshed with the second gear.

[0013] The second gear is fixedly connected to the second connecting column, and the upper second connecting column is rotatably connected to the second bearing.

[0014] The lower second connecting column is drivingly connected to the servo motor, and the outer sides of a plurality of the first gears and the outer side of the second gear are all meshed with the tooth block.

[0015] The tooth block is fixedly connected to the counterweight, and the counterweight is slidably connected to the inside of the second storage tank.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] By providing the fixing frame, the fixing block and the first chute, starting the rightmost cylinder connected between the two fixing frames drives the pulleys connected to the left - hand multiple fixing frames to slide inside the second chute, and the fixing frame drives the fixing block to slide inside the first chute. Moreover, the first gears on both sides above the cylinder are separated. Secondly, starting the servo motor drives the second gear connected to the lower second connecting column to rotate. The second gear drives the upper second connecting column to rotate inside the second bearing. And through the connection between the second gear and the first gear, and the connection between the two first gears, the first gear drives the first connecting column to rotate inside the first bearing. The arrangements of a plurality of the first gears and the second gear and the tooth block are such that the counterweight connected to the tooth block by the plurality of the first gears and the second gear slides to the right inside the second storage tank. When adding counterweight to the device, the cylinder is started from right to left one side at a time, so as to adjust the counterweight of the device according to the device requirements, making the use range of the device more extensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual ratio.

[0019] Figure 1 It is a front view sectional structure schematic diagram of the present utility model;

[0020] Figure 2 It is a front view sectional structure schematic diagram of the sliding device of the present utility model;

[0021] Figure 3 It is a front view sectional structure schematic diagram of the present utility model using the sliding device;

[0022] Figure 4 It is a side view sectional structure schematic diagram of the present utility model.

[0023] In the figure: 1, tower crane; 2, connecting block; 3, first storage tank; 4, sliding device; 5, second storage tank; 401, fixing frame; 402, fixing block; 403, first chute; 404, pulley; 405, second chute; 406, first gear; 407, first connecting column; 408, first bearing; 409, second gear; 410, second connecting column; 411, second bearing; 412, groove; 413, servo motor; 414, cylinder; 415, fixing groove; 416, connecting plate; 417, tooth block; 418, counterweight. Detailed implementation manners

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. shall be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1-4 , the present utility model provides a technical solution for a tower crane adjustable counterweight device: an adjustable counterweight device for a tower crane, including a tower crane 1, a connection block 2, and a first storage tank 3. A connection block 2 is installed above the tower crane 1. Both sides inside the connection block 2 are provided with first storage tanks 3. A second storage tank 5 is provided at the middle position inside the connection block 2. A sliding device 4 is installed inside both the first storage tank 3 and the second storage tank 5.

[0028] The sliding device 4 includes a fixed frame 401, a fixed block 402 and a first sliding groove 403. A plurality of fixed frames 401 are provided inside the first storage groove 3. A fixed block 402 is installed above the fixed frame 401. The fixed block 402 is arranged inside the first sliding groove 403. The first sliding groove 403 is arranged inside the tower crane 1. Pulleys 404 are installed on both sides below the fixed frame 401. The pulleys 404 are installed inside the second sliding groove 405. First gears 406 are provided at both ends inside the fixed frame 401. First connecting columns 407 are installed on both sides of the first gear 406. The outer sides of the first connecting columns 407 are connected to the inner wall of the fixed frame 401 through first bearings 408. A second gear 409 is provided on the right side of the first gear 406. Second connecting columns 410 are installed on both sides of the second gear 409. The upper second connecting column 410 is connected to the inner wall of the first storage groove 3 through a second bearing 411. The lower part of the lower second connecting column 410 penetrates through the groove 412 and is connected to a servo motor 413. The servo motor 413 is installed inside the tower crane 1. The outer sides of the plurality of first gears 406 and the outer side of the second gear 409 penetrate into the fixed groove 415 to the inside of the fixed groove 415. The fixed groove 415 is installed inside the connecting plate 416. The connecting plate 416 is connected to the inner wall of the connecting block 2. A plurality of counterweight blocks 418 are provided inside the second storage groove 5. Tooth blocks 417 are installed on both sides of the counterweight block 418. A cylinder 414 is installed between the two fixed frames 401.

[0029] During use, start the rightmost cylinder 414 connected between the two fixed frames 401 to drive the pulleys 404 connected to the left - hand side of the plurality of fixed frames 401 to slide inside the second sliding groove 405. The fixed frame 401 drives the fixed block 402 to slide inside the first sliding groove 403, and the first gears 406 on both sides above the cylinder 414 are separated from each other. Secondly, start the servo motor 413 to drive the second gear 409 connected to the lower second connecting column 410 to rotate. The second gear 409 drives the upper second connecting column 410 to rotate inside the second bearing 411. And through the connection setting between the second gear 409 and the first gear 406, and the connection setting between the two first gears 406, the first gear 406 drives the first connecting column 407 to rotate inside the first bearing 408. The plurality of first gears 406 and the second gear 409 are both provided with tooth blocks 417, so that the counterweight blocks 418 connected by the tooth blocks 417 can slide to the right inside the second storage groove 5 by the plurality of first gears 406 and the second gear 409. When adding counterweight to the device, the cylinder 414 is started from right to left one by one, so as to adjust the counterweight of the device according to the device requirements, making the use range of the device wider.

[0030] The tower crane 1 and the connecting block 2 are perpendicularly arranged to each other. The connecting block 2 is integrally arranged with both the first storage groove 3 and the second storage groove 5.

[0031] The fixing bracket 401 is slidably connected to the first storage tank 3, and the fixing bracket 401 is fixedly connected to the fixing block 402 and the pulley 404 respectively.

[0032] The fixing block 402 is slidably connected to the first sliding groove 403, and the first sliding groove 403 is integrally provided with the connecting block 2.

[0033] The pulley 404 is slidably connected to the second sliding groove 405, and the second sliding groove 405 is integrally provided with the connecting block 2.

[0034] The first gear 406 is fixedly connected to the first connecting column 407, and the first connecting column 407 is rotatably connected to the first bearing 408.

[0035] A plurality of first gears 406 are meshed with each other, and the rightmost first gear 406 is meshed with the second gear 409.

[0036] The second gear 409 is fixedly connected to the second connecting column 410, and the upper second connecting column 410 is rotatably connected to the second bearing 411.

[0037] The lower second connecting column 410 is drivingly connected to the servo motor 413, and the outer sides of the plurality of first gears 406 and the outer side of the second gear 409 are both meshed with the tooth block 417.

[0038] The tooth block 417 is fixedly connected to the counterweight 418, and the counterweight 418 is slidably connected to the inside of the second storage tank 5.

[0039] Although the embodiments of the present utility have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility. The scope of the present utility is defined by the appended claims and their equivalents.

Claims

1. A tower crane adjustable counterweight device, comprising a tower crane (1), a connecting block (2) and a first storage tank (3), characterized in that: Above the tower crane (1), a connecting block (2) is installed. On both sides inside the connecting block (2), there are first storage grooves (3). In the middle position inside the connecting block (2), there is a second storage groove (5). Inside both the first storage groove (3) and the second storage groove (5), a sliding device (4) is installed; The sliding device (4) includes a fixed frame (401), a fixed block (402), and a first sliding groove (403). Inside the first storage groove (3), there are multiple fixed frames (401). Above the fixed frame (401), a fixed block (402) is installed. The fixed block (402) is arranged inside the first sliding groove (403). The first sliding groove (403) is arranged inside the tower crane (1). On both sides below the fixed frame (401), pulleys (404) are installed. The pulleys (404) are installed inside a second sliding groove (405). At both ends inside the fixed frame (401), there are first gears (406). On both sides of the first gear (406), there are first connecting columns (407). The outer side of the first connecting column (407) is connected to the inner wall of the fixed frame (401) through a first bearing (408). On the right side of the first gear (406), there is a second gear (409). On both sides of the second gear (409), there are second connecting columns (410). The upper second connecting column (410) is connected to the inner wall of the first storage groove (3) through a second bearing (411). The lower second connecting column (410) penetrates a groove (412) below and is connected to a servo motor (413). The servo motor (413) is installed inside the tower crane (1). The outer sides of multiple first gears (406) and the outer side of the second gear (409) penetrate into a fixed groove (415) to the inside of the fixed groove (415). The fixed groove (415) is installed inside the inner side of a connecting plate (416). The connecting plate (416) is connected to the inner wall of the connecting block (2). Inside the second storage groove (5), there are multiple counterweight blocks (418). On both sides of the counterweight block (418), there are tooth blocks (417). A cylinder (414) is installed between two fixed frames (401).

2. The adjustable counterweight device for tower crane according to claim 1, characterized in that: The tower crane (1) and the connecting block (2) are arranged perpendicular to each other. The connecting block (2) is integrally formed with both the first storage groove (3) and the second storage groove (5).

3. The adjustable counterweight device for tower crane according to claim 2, characterized in that: The fixed frame (401) is slidably connected to the first storage groove (3). The fixed frame (401) is fixedly connected to both the fixed block (402) and the pulley (404).

4. The adjustable counterweight device for tower crane according to claim 3, wherein: The fixed block (402) is slidably connected to the first sliding groove (403). The first sliding groove (403) is integrally formed with the connecting block (2).

5. The adjustable counterweight device for tower crane according to claim 4, characterized in that: The pulley (404) is slidably connected to the second sliding groove (405). The second sliding groove (405) is integrally formed with the connecting block (2).

6. The adjustable counterweight device for tower crane according to claim 5, characterized in that: The first gear (406) is fixedly connected to the first connecting column (407), and the first connecting column (407) is rotatably connected to the first bearing (408).

7. The adjustable counterweight device for tower crane according to claim 6, characterized in that: A plurality of the first gears (406) are meshed with each other, and the rightmost first gear (406) is meshed with the second gear (409).

8. A tower crane adjustable counterweight device according to claim 7, characterized in that: The second gear (409) is fixedly connected to the second connecting column (410), and the upper second connecting column (410) is rotatably connected to the second bearing (411).

9. The adjustable counterweight device for tower crane according to claim 8, characterized in that: The lower second connecting column (410) is drivingly connected to the servo motor (413), and the outer sides of the plurality of first gears (406) and the outer side of the second gear (409) are both meshed with the tooth block (417).

10. A tower crane adjustable counterweight device according to claim 9, characterized in that: The tooth block (417) is fixedly connected to the counterweight block (418), and the counterweight block (418) is slidably connected to the inside of the second storage groove (5).

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