Pre-bending device for main reinforcement of reinforcement cage

Abstract

The utility model relates to the field of reinforcement cage production, and discloses a reinforcement cage main reinforcement pre-bending device which comprises a fixed base, a power assembly is fixedly connected to the top of the fixed base and used for providing rotation power, a worm is fixedly connected to the rear end of the power assembly, a worm gear is meshed with the top of the worm, and the worm gear is fixedly connected with the rear end of the power assembly. A rotating shaft is fixedly connected to the interior of the worm gear, a rotating roller is fixedly connected to the periphery of the rotating shaft, a rotating seat is rotatably connected to the periphery of the rotating shaft, a driving gear is fixedly connected to the periphery of the rotating shaft, and a driven gear is meshed with the bottom end of the driving gear. According to the pre-bending device, the driving gear, the driven gear and the transmission wheel are arranged, the rotating motor is started, the rotating rollers on the front side and the rear side are driven to rotate at the same speed at the same time, the rotating speed is reduced and torsion is improved through the worm gear and the worm, and therefore a heavy and huge reinforcement cage body can be conveniently driven to rotate and pre-bent.

Description

Technical Field

[0001] The utility model relates to the field of production of steel cage, in particular to a device for pre-bending the main bars of a steel cage. Background Technique

[0002] A steel cage refers to a structure where, when a concrete structure is a columnar or strip-shaped member, no reinforcement is required in the central part, and reinforcement is only arranged under the surface of the concrete member in contact with air. If this member is independent, the reinforcement arranged around it is prefabricated in advance, and the formed structure is the steel cage. Usually, prefabricated steel structures such as bored cast-in-place piles, dug piles, columns, etc. are all called steel cages, which are common building materials in civil engineering.

[0003] Pre-bending the main bars of a steel cage is an important link in the process of steel cage processing. Its main purpose is to ensure the stability and safety of the steel cage during installation and use. Through pre-bending treatment, the steel cage can be more stable when stressed, reducing deformation or damage caused by uneven stress. In order to facilitate the pre-bending of the steel cage, a device for pre-bending the main bars of a steel cage is required.

[0004] When pre-bending the main bars of the current steel cage, usually manual operation is used to pre-bend the main bars of the steel cage with a hydraulic clamp. However, in actual use, the overall steel cage is generally relatively large. When flipping the main bars of the steel cage, the steel cage needs to be rotated so that the main bars are at a suitable operating height and angle. It is difficult for workers to flip the steel cage. Therefore, a device for pre-bending the main bars of a steel cage is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a device for pre-bending the main bars of a steel cage, aiming to improve the problem that the overall steel cage is relatively large and it is difficult for workers to flip the steel cage in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A device for pre-bending the main bars of a steel cage, including a fixed base, a power assembly is fixedly connected to the top of the fixed base, the power assembly is used to provide rotational power, a worm is fixedly connected to the rear end of the power assembly, a worm gear is meshed with the top of the worm, a rotating shaft is fixedly connected to the inside of the worm gear, a rotating roller is fixedly connected to the outer periphery of the rotating shaft, a rotating seat is rotatably connected to the outer periphery of the rotating shaft, a driving gear is fixedly connected to the outer periphery of the rotating shaft, a driven gear is meshed with the bottom end of the driving gear, a transmission wheel is fixedly connected to the front of the driven gear, there are two groups of the transmission wheels, the two groups of transmission wheels are symmetrically arranged front and back, and the outer peripheries of the two groups of transmission wheels are connected by belt drive.

[0007] As a further description of the above technical solution:

[0008] A sliding groove is formed inside the fixed base. A sliding block is slidably connected inside the sliding groove. A fulcrum bracket is fixedly connected to the top of the sliding block. A threaded rod is threadedly connected inside the sliding block. A fixed bracket is fixedly connected to the top of the fixed base. A hydraulic cylinder is arranged on the inner wall of the top end of the fixed bracket. A pre-bending press block is fixedly connected to the telescopic end of the bottom of the hydraulic cylinder.

[0009] As a further description of the above technical solution:

[0010] The power assembly includes a motor bracket. The bottom of the motor bracket is fixedly connected to the top surface of the fixed base. A rotating motor is fixedly connected to the top of the motor bracket. The front end of the worm is fixedly connected to the output shaft of the rear end of the rotating motor.

[0011] As a further description of the above technical solution:

[0012] The bottom of the rotating seat is fixedly connected to the top of the fixed base.

[0013] As a further description of the above technical solution:

[0014] The left side of the driven gear is rotatably connected to the right side of the rotating seat.

[0015] As a further description of the above technical solution:

[0016] A steel cage body is placed on the top of the rotating roller. The bottom of the steel cage body is in contact with the top of the fulcrum bracket.

[0017] As a further description of the above technical solution:

[0018] The outer circumference of the threaded rod is rotatably connected inside the fixed base.

[0019] As a further description of the above technical solution:

[0020] The hydraulic cylinder is located inside the steel cage body. The bottom of the pre-bending press block is in contact with the inner wall of the top end of the steel cage body.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by arranging the driving gear, the driven gear and the transmission wheel, starting the rotating motor can drive the front and rear rotating rollers to rotate simultaneously at the same speed. Through the worm and worm gear, the rotation speed is reduced and the torque is increased, so that the heavy and huge steel cage body can be conveniently driven to rotate, facilitating the pre-bending of the steel cage body.

[0023] 2. In the present utility model, by providing a fulcrum bracket, a threaded rod, and a sliding block, the position of pre-bending can be conveniently adjusted. Then, through the pressure of the hydraulic cylinder and the self-weight of the steel cage body, the steel cage can be conveniently pre-pressed, improving the processing efficiency and reducing the workload of workers. Brief Description of the Drawings

[0024] Figure 1 It is a front view of the overall steel cage main reinforcement pre-bending device proposed by the present utility model;

[0025] Figure 2 It is a left side view of the fixed base of the steel cage main reinforcement pre-bending device proposed by the present utility model;

[0026] Figure 3 It is a right side view of the rotating seat of the steel cage main reinforcement pre-bending device proposed by the present utility model;

[0027] Figure 4 It is a front sectional view of the fixed base of the steel cage main reinforcement pre-bending device proposed by the present utility model.

[0028] Legend Explanation:

[0029] 1. Fixed base; 2. Motor bracket; 3. Rotating motor; 4. Worm; 5. Worm gear; 6. Rotating shaft; 7. Rotating roller; 8. Rotating seat; 9. Driving gear; 10. Driven gear; 11. Driving wheel; 12. Belt; 13. Sliding groove; 14. Sliding block; 15. Fulcrum bracket; 16. Threaded rod; 17. Fixed bracket; 18. Hydraulic cylinder; 19. Pre-bending pressing block; 20. Steel cage body. Detailed Embodiment

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the 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 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.

[0031] Refer to Figures 1 - 3The utility model provides an embodiment: a pre-bending device for main reinforcement of a steel cage, comprising a fixed base 1 for fixed support, a power assembly fixedly connected to the top of the fixed base 1, the power assembly is used to provide rotational power, the power assembly comprises a motor bracket 2 for fixed support, the bottom of the motor bracket 2 is fixedly connected to the top surface of the fixed base 1, the top of the motor bracket 2 is fixedly connected to a rotating motor 3 for providing rotational power, a worm 4 is fixedly connected to the rear end of the power assembly, the front end of the worm 4 is fixedly connected to the rear end output shaft of the rotating motor 3, the rotating motor 3 is turned on, the rear end output shaft of the rotating motor 3 will drive the worm 4 to rotate, a worm wheel 5 is meshed at the top of the worm 4, the rotation of the worm 4 can drive the worm wheel 5 to rotate slowly, a rotating shaft 6 is fixedly connected inside the worm wheel 5, a rotating roller 7 is fixedly connected to the outer periphery of the rotating shaft 6, a steel cage body 20 is placed on the top of the rotating roller 7, and the rotating roller 7 rotates, and can drive the steel cage body 20 to rotate slowly through friction. The outer periphery of the rotating shaft 6 is rotatably connected with a rotating seat 8 that plays a fixed supporting role. Two groups of grooves are opened on the top of the rotating seat 8, and a group of rotating shafts 6 and rotating rollers 7 are respectively arranged inside each group of grooves. The bottom of the rotating seat 8 is fixedly connected to the top of the fixed base 1. The outer periphery of the rotating shaft 6 is fixedly connected with a driving gear 9, and a passive gear 10 is meshed at the bottom of the driving gear 9. The rotation of the driving gear 9 can drive the passive gear 10 to rotate. The left side of the passive gear 10 is rotatably connected to the right side of the rotating seat 8 through the internal shaft. The front of the passive gear 10 is fixedly connected with a transmission wheel 11. Two groups of transmission wheels 11 are provided. The two groups of transmission wheels 11 are symmetrically arranged front and back. The outer peripheries of the two groups of transmission wheels 11 are connected by belts 12. The transmission wheel 11 on one side rotates, and the belt 12 will drive the transmission wheel 11 on the other side to rotate at the same speed and in the same direction.

[0032] Reference Figure 1 , Figure 2 and Figure 4, a sliding groove 13 is formed inside the fixed base 1. A sliding block 14 is slidably connected inside the sliding groove 13. The sliding groove 13 restricts the sliding block 14 from sliding left and right inside the sliding groove 13. The top of the sliding block 14 is fixedly connected with a fulcrum bracket 15. The bottom of the steel cage body 20 is in contact with the top of the fulcrum bracket 15. A threaded rod 16 is threadedly connected inside the sliding block 14. A rotating handle for convenient rotation is arranged on the left side of the threaded rod 16. By rotating the threaded rod 16, the threaded rod 16 can drive the sliding block 14 to move left and right along the outer wall of the threaded rod 16. The outer circumference of the threaded rod 16 is rotatably connected inside the fixed base 1. The top of the fixed base 1 is fixedly connected with a fixed bracket 17. The inner wall of the top end of the fixed bracket 17 is provided with a hydraulic cylinder 18 that provides pre-bending power. The hydraulic cylinder 18 is located inside the steel cage body 20. The bottom telescopic end of the hydraulic cylinder 18 is fixedly connected with a pre-bending pressing block 19. By turning on the hydraulic cylinder 18, the bottom telescopic end of the hydraulic cylinder 18 can drive the pre-bending pressing block 19 to move downward. The bottom of the pre-bending pressing block 19 is in contact with the inner wall of the top end of the steel cage body 20. Through the fulcrum of the fulcrum bracket 15, a lever is formed to pre-bend the main bars of the steel cage body 20 downward.

[0033] Working principle: When it is desired to conveniently drive the rotation of the steel cage body 20, place the steel cage body 20 on the rotating roller 7. Turn on the rotating motor 3. The rear output shaft of the rotating motor 3 drives the worm 4 to rotate. The worm 4 drives the top worm gear 5 to rotate slowly and provides a large torque. The worm gear 5 drives the front rotating shaft 6 to rotate. The front rotating shaft 6 drives the front driving gear 9 to rotate. The front driving gear 9 drives the front driven gear 10 to rotate. The front driven gear 10 drives the front transmission wheel 11 to rotate. The front transmission wheel 11 drives the rear transmission wheel 11 to rotate through the belt 12. The rear transmission wheel 11 drives the rear driven gear 10 to rotate. The rear driven gear 10 drives the rear driving gear 9 to rotate. The rear driving gear 9 drives the rear rotating shaft 6 to rotate. Then the front and rear rotating shafts 6 rotate at the same speed and in the same direction, driving the front and rear rotating rollers 7 to rotate at the same speed and in the same direction, thereby driving the steel cage body 20 to rotate slowly. When it is desired to pre-press the main bars of the steel cage body 20, when the main bars of the steel cage body 20 rotate above the fulcrum bracket 15, turn off the rotating motor 3. At this time, the threaded rod 16 can be rotated to adjust the position of the fulcrum bracket 15, thereby adjusting the pre-bending position. Turn on the hydraulic cylinder 18. The bottom telescopic end of the hydraulic cylinder 18 moves downward, driving the pre-bending pressing block 19 to move downward and come into contact with the main bars of the steel cage body 20. Continue to press downward. Through the fulcrum formed by the fulcrum bracket 15 and the self-weight of the steel cage body 20, it is convenient to pre-press the steel cage body 20.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A main reinforcement pre-bending device for a reinforcement cage, comprising a fixed base (1), characterized in that: The top of the fixed base (1) is fixedly connected to a power assembly, the power assembly is used to provide rotational power, the rear end of the power assembly is fixedly connected to a worm (4), the top of the worm (4) is meshed with a worm wheel (5), the inside of the worm wheel (5) is fixedly connected to a rotating shaft (6), the outer periphery of the rotating shaft (6) is fixedly connected to a rotating roller (7), the outer periphery of the rotating shaft (6) is rotatably connected to a rotating seat (8), the outer periphery of the rotating shaft (6) is fixedly connected to a driving gear (9), the bottom end of the driving gear (9) is meshed with a driven gear (10), the front face of the driven gear (10) is fixedly connected to a transmission wheel (11), two groups of the transmission wheels (11) are provided, the two groups of the transmission wheels (11) are symmetrically arranged front and rear, and the outer peripheries of the two groups of the transmission wheels (11) are connected by a belt (12).

2. A main reinforcement pre-bending device for a steel cage according to claim 1, characterized in that: The fixed base (1) is provided with a sliding groove (13) inside, a sliding block (14) is slidably connected inside the sliding groove (13), a fulcrum frame (15) is fixedly connected to the top of the sliding block (14), a threaded rod (16) is threadedly connected to the inside of the sliding block (14), a fixed bracket (17) is fixedly connected to the top of the fixed base (1), a hydraulic cylinder (18) is provided on the inner wall of the top end of the fixed bracket (17), and a pre-bending pressure block (19) is fixedly connected to the telescopic end at the bottom of the hydraulic cylinder (18).

3. A reinforcing cage main reinforcement pre-bending device according to claim 1, characterized in that: The power assembly comprises a motor bracket (2), the bottom of the motor bracket (2) is fixedly connected to the top surface of the fixed base (1), the top of the motor bracket (2) is fixedly connected to a rotating motor (3), and the front end of the worm (4) is fixedly connected to the rear end output shaft of the rotating motor (3).

4. A reinforcing cage main reinforcement pre-bending device according to claim 1, characterized in that: The bottom of the rotating seat (8) is fixedly connected to the top of the fixed base (1).

5. The main reinforcement pre-bending device of a steel cage according to claim 1, characterized in that: The left side of the passive gear (10) is rotatably connected to the right side of the rotating seat (8).

6. A reinforcing cage main reinforcement pre-bending device according to claim 1, characterized in that: A steel cage body (20) is placed on the top of the rotating roller (7), and the bottom of the steel cage body (20) is in contact with the top of the fulcrum frame (15).

7. A main reinforcement pre-bending device for a steel cage according to claim 2, characterized in that: The outer periphery of the threaded rod (16) is rotatably connected to the interior of the fixed base (1).

8. A reinforcing cage main reinforcement pre-bending device according to claim 2, characterized in that: The hydraulic cylinder (18) is located inside the steel cage body (20), and the bottom of the pre-bending pressure block (19) is in contact with the inner wall of the top end of the steel cage body (20).

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