Reinforcing steel cylinder expanding device during hoisting of embedded steel column

Abstract

The utility model provides a reinforcing steel bar cylinder expanding device during hoisting of an embedded steel column, which belongs to the technical field of building construction, comprises two expanding driving shells, and is characterized in that a linkage mechanism is arranged in each expanding driving shell, two driving shafts are rotatably connected onto the expanding driving shells, and the driving shafts are connected with the linkage mechanism. The included angle between the axes of the two driving shafts is 90 degrees, the driving shafts are coaxially and fixedly connected with an adjusting threaded rod, the adjusting threaded rod is in threaded connection with a right-angle connecting frame, and a limiting fixing mechanism is arranged in the right-angle connecting frame. The distance between the expansion driving shell and the support connecting frame is adjusted through the linkage mechanism, so that a reinforcing steel bar cylinder is controlled to be supported and expanded, meanwhile, in order to guarantee the overall stability of the device, the limiting and fixing mechanism is arranged, and the position of the right-angle connecting frame can be fixed after adjustment is completed. And the device stability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and particularly relates to a steel bar tube expansion device when a pre-buried steel column is hoisted. Background Art

[0002] Traditionally, some underground steel columns are pre-buried and hoisted into steel bar cylinders. Due to the small space inside the underground steel bar cylinders and inaccurate positioning, it is necessary to manually bend the inaccurately positioned steel bars. After the steel columns are installed, the steel bars are restored. However, the bending angles of some steel bars are too large, and the steel bars are severely deformed, causing serious damage. Subsequent construction is inconvenient, and some severely deformed steel bars need to be reworked. Therefore, it is necessary to propose a steel bar cylinder expansion device for hoisting pre-buried steel columns.

[0003] The existing technology mainly uses manual bending to bend the inaccurately positioned steel bars individually, and restores the steel bars after the steel column is installed. When the existing technology is pre-buried for hoisting of steel columns, the inner dimensions of some steel bars are designed to be relatively extreme, making hoisting difficult. Manual adjustment of some steel bars by brute force is required, resulting in serious bending damage of the steel bars and difficulty in restoration. Utility Model Content

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A steel bar tube expansion device for pre-buried steel column hoisting, comprising two expansion drive housings, characterized in that a linkage mechanism is arranged inside the expansion drive housing, two drive shafts are rotatably connected to the expansion drive housing, the angle between the axes of the two drive shafts is ninety degrees, and the drive shafts are coaxially fixedly connected with an adjusting threaded rod;

[0006] A right-angle connecting frame is threadedly connected to the adjusting threaded rod, and a limited position fixing mechanism is arranged in the right-angle connecting frame.

[0007] Preferably, the linkage mechanism includes a driving bevel gear, a driven bevel gear and a servo motor, the driving bevel gear is rotatably connected to the bottom of the expansion drive housing, the two driven bevel gears are rotatably connected to the inner wall of the expansion drive housing, the servo motor is arranged at the top of the expansion drive housing, the output end of the servo motor passes through the expansion drive housing and is coaxially fixedly connected to the driving bevel gear, and the driving bevel gear is meshed with the two driven bevel gears.

[0008] Preferably, the drive shaft passes through the expansion drive housing and is coaxially fixedly connected to the driven bevel gear on the corresponding side, and a right-angle mortgage gasket is provided on the expansion drive housing.

[0009] Preferably, the limiting fixing mechanism comprises a thread groove, a limiting groove and a limiting assembly, the thread groove is provided in the right-angle connecting frame, a limiting groove is provided in the thread groove, and the limiting assembly is coaxially rotatably connected with the adjusting threaded rod.

[0010] Preferably, the limiting component is slidably connected in the limiting groove, and a penetrating positioning hole is provided on the limiting component.

[0011] Preferably, a limiting hole is provided on the right-angle connecting frame, the through positioning hole and the limiting hole have the same diameter, and a fixing rod is provided on the right-angle connecting frame, and the fixing rod is slidably connected with the through positioning hole and the limiting hole.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The utility model adjusts the distance between the expansion drive housing and the support connecting frame by setting a linkage mechanism, thereby controlling the steel tube to support and expand. At the same time, in order to ensure the overall stability of the device, a limited position fixing mechanism is set, and the position of the right-angle connecting frame can be fixed after the adjustment is completed, thereby improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural schematic diagram of a steel bar tube expansion device for hoisting a pre-buried steel column proposed by the utility model;

[0015] Figure 2 A three-dimensional structural schematic diagram of a right-angle connecting frame of a steel bar tube expansion device when a pre-buried steel column is hoisted proposed by the utility model;

[0016] Figure 3 It is a three-dimensional internal structure schematic diagram of an expansion drive shell of a reinforcement tube expansion device when a pre-buried steel column is hoisted, which is proposed by the utility model;

[0017] Figure 4 The utility model is a three-dimensional structural schematic diagram of the adjusting threaded rod part of the reinforcement tube expansion device when the embedded steel column is hoisted.

[0018] In the figure: 1 expansion drive housing, 2 drive shaft, 3 adjustment threaded rod, 4 right-angle connecting frame, 5 driving bevel gear, 6 driven bevel gear, 7 servo motor, 8 right-angle mortgage gasket, 9 limit assembly, 10 through positioning hole, 11 limit hole, 12 fixed plug rod. DETAILED DESCRIPTION

[0019] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Reference Figure 1-Figure 4 , a steel bar tube expansion device when lifting a pre-buried steel column, including.

[0021] Two expansion drive housings 1, a linkage mechanism is arranged inside the expansion drive housing 1, two drive shafts 2 are rotatably connected to the expansion drive housing 1, the angle between the axes of the two drive shafts 2 is 90 degrees, and the drive shafts 2 are coaxially fixedly connected with an adjusting threaded rod 3;

[0022] A right-angle connecting frame 4 is threadedly connected to the adjusting threaded rod 3, and a limited position fixing mechanism is arranged inside the right-angle connecting frame 4;

[0023] The linkage mechanism includes a driving bevel gear 5, a driven bevel gear 6 and a servo motor 7. The driving bevel gear 5 is rotatably connected to the bottom of the expansion drive housing 1. The two driven bevel gears 6 are rotatably connected to the inner wall of the expansion drive housing 1. The servo motor 7 is arranged at the top of the expansion drive housing 1. The output end of the servo motor 7 penetrates the expansion drive housing 1 and is coaxially fixedly connected to the driving bevel gear 5. The driving bevel gear 5 is meshed with the two driven bevel gears 6. The drive shaft 2 penetrates the expansion drive housing 1 and is coaxially fixedly connected to the driven bevel gear 6 on the corresponding side. A right-angle mortgage gasket 8 is arranged on the expansion drive housing 1. When the device as a whole needs to be expanded outward to support the steel tube , it is necessary to control the two servo motors 7 to work normally, and the active bevel gear 5 coaxially fixedly connected to the output end of the servo motor 7 can rotate. When the active bevel gear 5 rotates, the driven bevel gear 6 meshing therewith can rotate, and the driving shaft 2 coaxially fixedly connected to the driven bevel gear 6 can drive the adjusting threaded rod 3 to rotate. When the adjusting threaded rod 3 rotates, since the adjusting threaded rod 3 is threadedly connected to the right-angle connecting frame 4, the distance between the right-angle connecting frame 4 and the adjusting threaded rod 3 can be adjusted. The right-angle mortgage gasket 8 can prevent the steel bar from scratching the expansion drive housing 1, and can also increase the friction between the expansion drive housing 1 and the steel bar;

[0024] The limiting and fixing mechanism includes a threaded groove, a limiting groove and a limiting component 9. The threaded groove is opened in the right-angle connecting frame 4, and a limiting groove is opened in the threaded groove. The limiting component 9 is coaxially rotatably connected with the adjusting threaded rod 3, and the limiting component 9 is slidably connected in the limiting groove. A through positioning hole 10 is opened on the limiting component 9, and a limiting hole 11 is opened on the right-angle connecting frame 4. The through positioning hole 10 and the limiting hole 11 have the same diameter. A fixed plug rod 12 is provided on the right-angle connecting frame 4, and the fixed plug rod 12 is slidably connected with the through positioning hole 10 and the limiting hole 11. When the right-angle connecting frame 4 is adjusted to a suitable distance, the fixed plug rod 12 can be inserted into the through positioning hole 10 and the limiting hole 11. It should be noted that when the adjusting threaded rod 3 rotates, since the limiting component 9 is slidably connected in the limiting groove, it can be ensured that the through positioning hole 10 and the limiting hole 11 are always on a uniform straight line.

[0025] The functional principle of the utility model can be explained through the following operation modes:

[0026] When the device as a whole needs to be expanded outward in order to support the steel bar cylinder, it is necessary to control the two servo motors 7 to work normally, and the active bevel gear 5 coaxially fixedly connected to the output end of the servo motor 7 can rotate. When the active bevel gear 5 rotates, the driven bevel gear 6 meshing therewith can rotate, and the driving shaft 2 coaxially fixedly connected to the driven bevel gear 6 can drive the adjusting threaded rod 3 to rotate. When the adjusting threaded rod 3 rotates, since the adjusting threaded rod 3 is threadedly connected to the right-angle connecting frame 4, the spacing between the right-angle connecting frame 4 and the adjusting threaded rod 3 can be adjusted. The right-angle mortgage gasket 8 can prevent the steel bar from scratching the expansion drive housing 1, and can also increase the friction between the expansion drive housing 1 and the steel bar.

[0027] When the right-angle connecting frame 4 is adjusted to a suitable distance, the fixed rod 12 can be inserted into the through positioning hole 10 and the limiting hole 11. It should be noted that when the adjusting threaded rod 3 is rotated, since the limiting assembly 9 is slidably connected to the limiting groove, it can be ensured that the through positioning hole 10 and the limiting hole 11 are always in a uniform straight line.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A steel bar tube expansion device for lifting a pre-buried steel column, comprising two expansion drive housings (1), characterized in that: A linkage mechanism is arranged inside the expansion drive housing (1); two drive shafts (2) are rotatably connected to the expansion drive housing (1); the included angle between the axes of the two drive shafts (2) is ninety degrees; and an adjusting threaded rod (3) is coaxially fixedly connected to the drive shaft (2); A right-angle connecting frame (4) is threadedly connected to the adjusting threaded rod (3), and a limited position fixing mechanism is arranged inside the right-angle connecting frame (4).

2. The steel bar tube expansion device for pre-buried steel column hoisting according to claim 1 is characterized in that: The linkage mechanism comprises a driving bevel gear (5), a driven bevel gear (6) and a servo motor (7); the driving bevel gear (5) is rotatably connected to the bottom of the expansion drive housing (1); the two driven bevel gears (6) are rotatably connected to the inner wall of the expansion drive housing (1); the servo motor (7) is arranged on the top of the expansion drive housing (1); the output end of the servo motor (7) passes through the expansion drive housing (1) and is coaxially fixedly connected to the driving bevel gear (5); the driving bevel gear (5) is meshed with the two driven bevel gears (6).

3. The steel bar tube expansion device for pre-buried steel column hoisting according to claim 2 is characterized in that: The drive shaft (2) passes through the expansion drive housing (1) and is coaxially fixedly connected to the driven bevel gear (6) on the corresponding side. A right-angle mortgage gasket (8) is provided on the expansion drive housing (1).

4. The steel bar tube expansion device for pre-buried steel column hoisting according to claim 3 is characterized in that: The limiting fixing mechanism comprises a thread groove, a limiting groove and a limiting assembly (9); the thread groove is provided in the right-angle connecting frame (4); a limiting groove is provided in the thread groove; and the limiting assembly (9) is coaxially rotatably connected to the adjusting threaded rod (3).

5. The steel bar tube expansion device for pre-buried steel column hoisting according to claim 4 is characterized in that: The limiting component (9) is slidably connected in the limiting groove, and a through positioning hole (10) is provided on the limiting component (9).

6. The steel bar tube expansion device for pre-buried steel column hoisting according to claim 5 is characterized in that: The right-angle connecting frame (4) is provided with a limiting hole (11), the through positioning hole (10) and the limiting hole (11) have the same diameter, and the right-angle connecting frame (4) is provided with a fixing rod (12), and the fixing rod (12) is slidably connected to the through positioning hole (10) and the limiting hole (11).

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