Coaxiality adjusting and fixing device for tower crane

Abstract

The utility model relates to the technical field of tower cranes, and discloses a tower crane coaxiality adjusting and fixing device which comprises a sleeving shell, a telescopic rod is fixedly connected to the sleeving shell, a coaxial adjusting shell is fixedly connected to one end of the telescopic rod, a vertical control plate is slidably connected to the coaxial adjusting shell, and the vertical control plate is fixedly connected to the telescopic rod. The coaxial adjusting shell is slidably connected with a horizontal control plate, and a vertical control bolt penetrates through the vertical control plate in a sliding mode. According to the utility model, the telescopic rod, the vertical control plate, the horizontal control plate, the vertical control bolt, the horizontal control bolt and the V-shaped block are matched, so that the precise fine adjustment of the cantilever shaft of the tower crane in the vertical direction and the horizontal direction is realized; according to the multi-dimensional adjusting mechanism, a worker can easily and accurately adjust the coaxiality between the cantilever shaft and the output rotating shaft of the tower crane, the adjusting efficiency and accuracy are greatly improved, and mechanical abrasion and potential safety hazards caused by coaxiality deviation are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tower cranes, in particular to a coaxiality adjuster and fixer for tower cranes. Background Art

[0002] Tower crane, also known as tower crane, is a commonly used lifting equipment in construction. It is mainly composed of tower body, lifting arm, balance arm, turntable, driver's cab, lifting mechanism, luffing mechanism, slewing mechanism and walking mechanism. The main function of tower crane is to lift heavy objects from the ground or low place and transport them to the designated location through lifting, luffing and slewing actions. Tower crane has the advantages of large lifting height, wide working range, high operating efficiency and good stability. It is widely used in high-rise building construction, bridge construction, port loading and unloading and other fields.

[0003] During the assembly or maintenance of traditional tower cranes, the coaxiality adjustment process is cumbersome and difficult to achieve high-precision requirements due to the lack of effective adjustment tools or methods, which in turn affects the overall performance and stability of the tower crane. After the coaxiality is adjusted, the traditional fixing method is cumbersome or not firm enough, which increases the labor intensity and safety risks of the staff, and may also affect the normal use and maintenance efficiency of the tower crane. Therefore, the utility model proposes a tower crane coaxiality adjuster and fixer to solve the problems existing in the prior art. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a tower crane coaxiality adjuster and fixer.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tower crane coaxiality adjustment and fixer, including a sleeve shell, a telescopic rod is fixedly connected to the sleeve shell, one end of the telescopic rod is fixedly connected to the coaxial adjustment shell, a vertical control plate is slidably connected to the coaxial adjustment shell, a horizontal control plate is slidably connected to the coaxial adjustment shell, a vertical control bolt slides through the vertical control plate, the vertical control bolt is threadedly connected to the coaxial adjustment shell, one end of the vertical control bolt is fixedly connected to a first limit block, a horizontal control bolt slides through the horizontal control plate, one end of the horizontal control bolt is fixedly connected to a second limit block, the coaxial adjustment shell is provided with a through hole, a tower crane cantilever shaft slides in the through hole, and an output rotating shaft is rotatably connected in the sleeve shell.

[0006] As a further description of the above technical solution:

[0007] One end of the tower crane cantilever shaft is fixedly connected to a first connecting plate, one end of the output rotating shaft is fixedly connected to a second connecting plate, a fixing bolt slides through the second connecting plate, an elastic gasket is sleeved on the fixing bolt, a fixing nut is threadedly connected to the fixing bolt, and the fixing bolt slides through the first connecting plate.

[0008] As a further description of the above technical solution:

[0009] Both ends of the vertical control panel and the horizontal control panel are provided with V-shaped blocks, and the inner sides of the V-shaped blocks are fitted with the cantilever shaft of the tower crane.

[0010] As a further description of the above technical solution:

[0011] The length of the vertical control plate is smaller than that of the horizontal control plate. Two groups of vertical control plates are provided. The two groups of vertical control plates are opposite to each other up and down and are spaced a certain distance apart. The spacing distance is smaller than the length of the vertical control plate. Two groups of horizontal control plates are provided. The two groups of horizontal control plates are opposite to each other front and back and are spaced a certain distance apart. The spacing distance is smaller than the length of the horizontal control plate.

[0012] As a further description of the above technical solution:

[0013] The diameter of one end of the vertical control bolt is larger than the through hole on the vertical control plate. The first limit block and the second limit block are both arranged in the coaxial adjustment housing. The vertical control bolt and the horizontal control bolt are both located in the middle of the V-shaped block.

[0014] As a further description of the above technical solution:

[0015] The first connecting plate and the second connecting plate are fitted together, four groups of fixing bolts are provided and evenly distributed on the second connecting plate, and the elastic gasket is located between the first connecting plate and the fixing nut.

[0016] As a further description of the above technical solution:

[0017] The length of the V-shaped block is greater than the length of the vertical control bolt. The V-shaped block is made of stainless steel. The sleeve shell, the output rotating shaft, the coaxial adjustment shell, and the through hole are all concentric.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, the telescopic rod, the vertical control plate, the horizontal control plate, the vertical control bolt and the horizontal control bolt, as well as the cooperation of the V-shaped block, realize the precise fine-tuning of the tower crane cantilever shaft in the vertical and horizontal directions. This multi-dimensional adjustment mechanism enables the staff to easily and accurately adjust the coaxiality between the tower crane cantilever shaft and the output rotating shaft, greatly improving the adjustment efficiency and accuracy, and reducing the mechanical wear and safety hazards caused by the coaxiality deviation.

[0020] 2. In the utility model, four sets of fixing bolts and fixing nuts are used in conjunction with elastic washers to achieve firm locking between the first connecting plate and the second connecting plate, thereby ensuring the coaxial fixation of the tower crane cantilever shaft and the output rotating shaft. After the fixation is completed, the squeezing restriction of the tower crane cantilever shaft by the V-shaped block is released by rotating the vertical control bolt and the horizontal control bolt, thereby preventing rotation interference and reducing the operating burden of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional structure diagram of a tower crane coaxiality adjustment and fixation device proposed by the utility model Figure 1 ;

[0022] Figure 2 A three-dimensional structure diagram of a tower crane coaxiality adjustment and fixation device proposed by the utility model Figure 2 ;

[0023] Figure 3 A schematic diagram of the local structure of a tower crane coaxiality adjustment and fixation device proposed by the utility model Figure 1 ;

[0024] Figure 4 A schematic diagram of the local structure of a tower crane coaxiality adjustment and fixation device proposed by the utility model Figure 2 .

[0025] Legend:

[0026] 1. Socket shell; 2. Coaxial adjustment shell; 3. Telescopic rod; 4. Vertical control plate; 5. Horizontal control plate; 6. Vertical control bolt; 7. First limit block; 8. V-shaped block; 9. Horizontal control bolt; 10. Second limit block; 11. Tower crane cantilever shaft; 12. Output rotating shaft; 13. First connecting plate; 14. Second connecting plate; 15. Through hole; 16. Elastic gasket; 17. Fixing bolt; 18. Fixing nut. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-Figure 4 The utility model provides an embodiment: a tower crane coaxiality adjustment and fixer, including a sleeve shell 1, a telescopic rod 3 is fixedly connected to the sleeve shell 1, one end of the telescopic rod 3 is fixedly connected to a coaxial adjustment shell 2, a vertical control plate 4 is slidably connected to the coaxial adjustment shell 2, a horizontal control plate 5 is slidably connected to the coaxial adjustment shell 2, a vertical control bolt 6 is slidably penetrated in the vertical control plate 4, the vertical control bolt 6 is threadedly connected to the coaxial adjustment shell 2, one end of the vertical control bolt 6 is fixedly connected to a first limit block 7, a horizontal control bolt 9 is slidably penetrated in the horizontal control plate 5, one end of the horizontal control bolt 9 is fixedly connected to a second limit block 10, the coaxial adjustment shell 2 is provided with a through hole 15, a tower crane cantilever shaft 11 is slid in the through hole 15, and an output rotating shaft 12 is rotatably connected in the sleeve shell 1.

[0029] One end of the tower crane cantilever shaft 11 is fixedly connected to a first connecting plate 13, and one end of the output rotating shaft 12 is fixedly connected to a second connecting plate 14. A fixing bolt 17 is inserted and slidably provided in the second connecting plate 14. An elastic gasket 16 is sleeved on the fixing bolt 17. A fixing nut 18 is threadedly connected to the fixing bolt 17. The fixing bolt 17 slides through the first connecting plate 13. V-shaped blocks 8 are provided at both ends of the vertical control plate 4 and the horizontal control plate 5. The inner sides of the V-shaped blocks 8 are fitted with the tower crane cantilever shaft 11. The length of the vertical control plate 4 is smaller than that of the horizontal control plate 5. The vertical control plate 4 is provided with two groups. The two groups of vertical control plates 4 are opposite to each other and are spaced a certain distance apart. The spacing distance is smaller than the length of the vertical control plate 4. The horizontal control plate 5 is provided with two groups. A group of horizontal control plates 5 are opposite to each other and spaced a certain distance apart, and the spacing distance is less than the length of the horizontal control plates 5. The diameter of one end of the vertical control bolt 6 is larger than the through hole on the vertical control plate 4. The first limit block 7 and the second limit block 10 are both arranged in the coaxial adjustment housing 2. The vertical control bolt 6 and the horizontal control bolt 9 are both located in the middle of the V-shaped block 8. The first connecting plate 13 and the second connecting plate 14 are fitted together. Four groups of fixing bolts 17 are provided and are evenly distributed on the second connecting plate 14. The elastic gasket 16 is located between the first connecting plate 13 and the fixing nut 18. The length of the V-shaped block 8 is larger than the length of the vertical control bolt 6. The V-shaped block 8 is made of stainless steel. The sleeve shell 1, the output rotating shaft 12, the coaxial adjustment housing 2, and the through hole 15 are all concentric.

[0030] Working principle: The utility model controls the position of the coaxial adjustment housing 2 on the tower crane cantilever shaft 11 through the telescopic control of the telescopic rod 3, and then the staff rotates the vertical control bolts 6 on the two sets of vertical control plates 4 through the Allen wrench, and drives the vertical control plates 4 to move into the coaxial adjustment housing 2 through the rotation of the vertical control bolts 6, and drives the V-shaped blocks 8 at both ends to squeeze the tower crane cantilever shaft 11 through the sliding of the vertical control plates 4, and clamps the tower crane cantilever shaft 11 through the two inclined surfaces of the V-shaped blocks 8 to prevent squeezing and movement, so as to fine-tune the position in the vertical direction, and rotates the horizontal control bolts 9 on the two sets of horizontal control plates 5 through the Allen wrench, and drives the two sets of V-shaped blocks 8 on the horizontal control plates 5 to push the tower crane cantilever shaft 11 to move in the horizontal position through the horizontal control bolts 9, so as to fine-tune the position of the tower crane cantilever shaft 11 in the horizontal direction, and controls the rotation of the vertical control bolts 6 and the horizontal control bolts 9 to adjust the tower crane cantilever shaft 11. 1 is fine-tuned in the axial direction, so as to adjust the coaxiality of the tower crane cantilever shaft 11 and the output rotating shaft 12. After the adjustment is completed, the second connecting plate 14 is connected to the first connecting plate 13 by four sets of fixing bolts 17, and the fixing nut 18 is locked with the elastic gasket 16. The elastic gasket 16 prevents the fixing nut 18 from sliding, and the first connecting plate 13 and the second connecting plate 14 are locked and fitted, so as to achieve the purpose of coaxial adjustment and fixation of the tower crane output rotating shaft 12 and the tower crane cantilever shaft 11. After the first connecting plate 13 and the second connecting plate 14 are locked, the vertical control bolt 6 and the horizontal control bolt 9 can be rotated to release the V-shaped blocks 8 at both ends of the vertical control plate 4 and the horizontal control plate 5 from squeezing the tower crane cantilever shaft 11. The above simple and convenient operation improves the efficiency of the staff in adjusting the coaxiality of the tower crane, reduces the operating burden and also reduces the accident rate of the tower crane.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tower crane coaxiality adjustment and fixation device, comprising a sleeve shell (1), characterized in that: The sleeve shell (1) is fixedly connected with a telescopic rod (3), one end of the telescopic rod (3) is fixedly connected with a coaxial adjustment shell (2), a vertical control plate (4) is slidably connected with the coaxial adjustment shell (2), a horizontal control plate (5) is slidably connected with the coaxial adjustment shell (2), a vertical control bolt (6) is slidably passed through the vertical control plate (4), the vertical control bolt (6) is threadedly connected to the coaxial adjustment shell (2), one end of the vertical control bolt (6) is fixedly connected with a first limit stopper (7), a horizontal control bolt (9) is slidably passed through the horizontal control plate (5), one end of the horizontal control bolt (9) is fixedly connected with a second limit stopper (10), the coaxial adjustment shell (2) is provided with a through hole (15), a tower crane cantilever shaft (11) is slidably passed through the through hole (15), and an output rotating shaft (12) is rotatably connected to the sleeve shell (1).

2. A tower crane coaxiality adjustment and fixation device according to claim 1, characterized in that: One end of the tower crane cantilever shaft (11) is fixedly connected to a first connecting plate (13), one end of the output rotating shaft (12) is fixedly connected to a second connecting plate (14), a fixing bolt (17) is slidably passed through the second connecting plate (14), an elastic gasket (16) is sleeved on the fixing bolt (17), a fixing nut (18) is threadedly connected to the fixing bolt (17), and the fixing bolt (17) passes through and slides in the first connecting plate (13).

3. A tower crane coaxiality adjustment and fixation device according to claim 2, characterized in that: Both ends of the vertical control plate (4) and the horizontal control plate (5) are provided with V-shaped blocks (8), and the inner sides of the V-shaped blocks (8) are in contact with the tower crane cantilever shaft (11).

4. A tower crane coaxiality adjustment and fixation device according to claim 3, characterized in that: The length of the vertical control plate (4) is shorter than that of the horizontal control plate (5); the vertical control plate (4) is provided with two groups, the two groups of the vertical control plates (4) are opposite to each other up and down and are spaced apart by a certain distance, the spacing distance being shorter than the length of the vertical control plate (4); the horizontal control plate (5) is provided with two groups, the two groups of the horizontal control plates (5) are opposite to each other front and back and are spaced apart by a certain distance, the spacing distance being shorter than the length of the horizontal control plate (5).

5. A tower crane coaxiality adjustment and fixation device according to claim 4, characterized in that: The diameter of one end of the vertical control bolt (6) is larger than the through hole on the vertical control plate (4); the first limit stopper (7) and the second limit stopper (10) are both arranged in the coaxial adjustment housing (2); and the vertical control bolt (6) and the horizontal control bolt (9) are both located in the middle of the V-shaped block (8).

6. A tower crane coaxiality adjustment and fixation device according to claim 5, characterized in that: The first connecting plate (13) and the second connecting plate (14) are fitted together, four groups of fixing bolts (17) are provided and evenly distributed on the second connecting plate (14), and the elastic gasket (16) is located between the first connecting plate (13) and the fixing nut (18).

7. A tower crane coaxiality adjustment and fixation device according to claim 6, characterized in that: The length of the V-shaped block (8) is greater than the length of the vertical control bolt (6). The V-shaped block (8) is made of stainless steel. The sleeve shell (1), the output rotating shaft (12), the coaxial adjustment shell (2), and the through hole (15) are all concentric.

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