Prestressed steel strand braiding and perforating device

Abstract

The utility model belongs to the technical field of prestressed steel strand punching, and particularly relates to a prestressed steel strand braiding and punching device which comprises a hole channel body and a steel strand body, a traction moving mechanism is arranged in the hole channel body, and the steel strand body is fixedly connected with one side of the traction moving mechanism. According to the pre-stressed steel strand braiding and perforating device, the traction moving mechanism is arranged to conduct traction and perforating on the steel strand body, the traction moving mechanism meets the requirement that the steel strand body is pulled to move in a bent hole channel, and the requirement for traction of the steel strand body in the bent hole channel is met; the technical problem that an existing device cannot conduct traction perforation on the steel strand in a bent hole channel is solved.

Description

Technical Field

[0001] This utility model relates to the field of prestressed steel strand perforation technology, and in particular to a prestressed steel strand bundling and perforation device. Background Technology

[0002] Steel strand bundling and threading devices are widely used in prestressed construction projects such as large bridges, box girders, and structures. In infrastructure projects such as high-speed rail construction, the precast beam process is inseparable from the cutting and threading of steel strands, highlighting its importance as the first step in prestressed construction.

[0003] In existing technologies, steel strands are often directly dragged by a lead screw, which causes significant wear to the casing and pipes. Furthermore, in bridges, long-span beams, or curved structures, the ducts need to be designed with horizontal or vertical bends to match the curved shape of the components. Existing devices cannot perform steel strand traction and perforation in curved ducts. Existing technologies are difficult to adapt to perforation requirements in different locations, exhibiting poor applicability. Utility Model Content

[0004] To address the technical problem that existing devices cannot perform traction and perforation of steel strands in curved channels, this utility model proposes a prestressed steel strand bundling and perforation device.

[0005] This utility model proposes a prestressed steel strand bundling and perforation device, which includes a duct body and a steel strand body. The duct body is provided with a traction and moving mechanism inside. The steel strand body is fixedly connected to one side of the traction and moving mechanism. The traction and moving mechanism realizes the action of traction and perforation of the steel strand body.

[0006] Preferably, the traction moving mechanism includes a mounting plate, and two mounting plates are respectively rotatably connected to each other via ball bearings. A plurality of worm gears are arranged in a circumferential array around the axis of the mounting plate.

[0007] Preferably, an L-shaped support block is fixedly installed between the opposing surfaces of the two mounting plates, and a fixed shaft is rotatably connected between the opposing surfaces of every two L-shaped support blocks via a ball bearing. A worm gear is fixedly connected to the central arc surface of the fixed shaft, and the teeth of the worm gear mesh with the threaded groove of the worm.

[0008] Preferably, rotating wheels are fixedly connected to the arc surfaces on both sides of the fixed shaft, and the arc surfaces of the plurality of rotating wheels are in driving contact with the inner sidewall of the channel body.

[0009] Preferably, the two ends of the worm gear pass through and extend out of the outer sides of the two mounting plates, and a transmission sprocket is fixedly connected to one end of the worm gear extending out of the mounting plate. The teeth of the multiple transmission sprockets are all connected to a transmission chain.

[0010] Preferably, a drive motor is fixedly mounted on one side of one of the mounting plates, and the output end of the drive motor is fixedly connected to one end of one of the worm gears via a coupling.

[0011] Preferably, a protective shell is fixedly installed on one side of the mounting plate, a fixing block is threadedly connected to the outer surface of the protective shell, a fixing hole is opened on one side surface of the fixing block, one end of the steel strand body is fixedly connected to the inner side wall of the fixing hole, and a rubber protective sleeve is also fixedly connected to one side of the fixing block, the rubber protective sleeve is disposed on the outside of the steel strand body.

[0012] The beneficial effects of this utility model are as follows:

[0013] By setting up a traction and moving mechanism to traction and pierce the steel strand body, and the traction and moving mechanism satisfies the requirement of traction of the steel strand body in curved channels, thus solving the technical problem that existing devices cannot traction and pierce steel strands in curved channels. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a prestressed steel strand bundling and perforation device proposed in this utility model;

[0015] Figure 2 This is a three-dimensional view of the duct body structure of a prestressed steel strand bundling and perforating device proposed in this utility model;

[0016] Figure 3 This is a cross-sectional view of the duct body of a prestressed steel strand bundling and perforating device proposed in this utility model;

[0017] Figure 4 This is a perspective view of the mounting plate structure of a prestressed steel strand bundling and perforation device proposed in this utility model;

[0018] Figure 5 This is a perspective view of the worm gear structure of a prestressed steel strand bundling and perforation device proposed in this utility model.

[0019] In the diagram: 1. Channel body; 2. Steel strand body; 3. Mounting plate; 4. Worm gear; 5. L-shaped support block; 6. Fixed shaft; 7. Worm wheel; 8. Rotating wheel; 9. Transmission sprocket; 10. Transmission chain; 11. Drive motor; 12. Protective shell; 13. Fixing block; 14. Fixing hole; 15. Rubber protective sleeve. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-5 A prestressed steel strand bundling and perforating device includes a duct body 1 and a steel strand body 2. A traction and moving mechanism is provided inside the duct body 1. One end of the steel strand body 2 is fixedly connected to one side of the traction and moving mechanism. The traction and moving mechanism realizes the action of traction and perforation of the steel strand body 2.

[0022] The traction and movement mechanism includes mounting plates 3. Worms 4 are rotatably connected between the opposite surfaces of two mounting plates 3 via ball bearings. Multiple worms 4 are arranged in a circumferential array around the axis of the mounting plates 3. L-shaped support blocks 5 are fixedly installed between the opposite surfaces of two mounting plates 3. A fixed shaft 6 is rotatably connected between the opposite surfaces of every two L-shaped support blocks 5 via ball bearings. A worm wheel 7 is fixedly connected to the central arc surface of the fixed shaft 6. The teeth of the worm wheel 7 mesh with the threaded groove of the worm 4.

[0023] The synchronous rotation of multiple worm gears 4 drives the synchronous rotation of multiple worm wheels 7. The fixed shaft 6 is fixed by the L-shaped support block 5. The worm wheel 7 is fixedly installed on the arc surface of the fixed shaft 6, so that the worm wheel 7 stably meshes with the thread groove of the worm gear 4, and the worm gear 4 stably drives the worm wheel 4 to rotate.

[0024] Rotating wheels 8 are fixedly connected to the arc surfaces on both sides of the fixed shaft 6, and the arc surfaces of multiple rotating wheels 8 are in transmission contact with the inner wall of the channel body 1.

[0025] The rotation of the worm gear 7 drives the fixed shaft 6 to rotate, which in turn causes the rotating wheel 8 on the fixed shaft 6 to rotate. The synchronous rotation of multiple rotating wheels 8 can drive the entire device to move inside the channel body 1.

[0026] In order to make the four worm gears 4 rotate synchronously, two mounting plates 3 are respectively inserted through and extended from both ends of the worm gears 4. A transmission sprocket 9 is fixedly connected to one end of the worm gear 4 extending from the mounting plate 3, and the teeth of the multiple transmission sprockets 9 are all connected to the transmission chain 10.

[0027] The rotation of a worm gear 4 drives a transmission sprocket 9 to rotate. The rotation of the transmission sprocket 9, through the transmission chain 10, causes multiple transmission sprockets 9 to rotate together, which in turn causes the rotation of a worm gear 4 to drive multiple worm gears 4 to rotate together, and causes multiple rotating wheels 8 to rotate synchronously.

[0028] A drive motor 11 is fixedly mounted on one side of a mounting plate 3. The output end of the drive motor 11 is fixedly connected to one end of a worm gear 4 through a coupling. The drive motor 11 drives the worm gear 4 to rotate.

[0029] A protective shell 12 is fixedly installed on one side of an mounting plate 3. A fixing block 13 is threadedly connected to the outer surface of the protective shell 12. A fixing hole 14 is opened on one side surface of the fixing block 13. One end of the steel strand body 2 is fixedly connected to the inner wall of the fixing hole 14. A rubber protective sleeve 15 is also fixedly connected to one side of the fixing block 13. The rubber protective sleeve 15 is set on the outside of the steel strand body 2.

[0030] The transmission sprocket 9 and transmission chain 10 are protected by the protective shell 12. The steel strand body 2 that needs to be pulled is inserted into the fixing hole 14 on the fixing block 13. Then the fixing block 13 is threaded onto the protective shell 12, so that the movement of the device pulls the steel strand body 2 through the hole. The rubber protective sleeve 15 protects the steel strand body 2 from friction with the inner wall of the hole body 1, and prevents the steel strand body 2 from wearing.

[0031] Working principle: First, place the entire device at the opening of the steel strand body 2 to be pulled, so that multiple rotating wheels 8 make transmission contact with the inner wall of the channel body 1. Then, insert the steel strand body 2 into the fixing hole 14 on the fixing block 13, and then thread the fixing block 13 to the protective shell 12. Start the drive motor 11 to drive a worm gear 4 to rotate. The rotation of the worm gear 4 drives a transmission sprocket 9 to rotate. The rotation of the transmission sprocket 9, through the transmission chain 10, causes multiple transmission sprockets 9 to rotate together, so that the rotation of the worm gear 4 drives multiple worm gears 4 to rotate together. Multiple worm gears 4 rotate synchronously, causing multiple worm wheels 7 to rotate synchronously. Through the fixed shaft 6, multiple rotating wheels 8 rotate synchronously, causing the device to move the steel strand body 2 along the channel body 1 inward until the outlet at the other end of the channel body 1. Then, the fixing block 13 is unscrewed from the protective shell 12 and the steel strand body 2 is pulled out from the fixing hole 14. The rotating wheel 8 is designed so that the device can also meet the traction and perforation of the steel strand body 2 in the curved channel. The rubber protective sleeve 15 on one side of the fixing block 13 protects the steel strand body 2 from friction with the inner wall of the channel body 1, preventing wear of the steel strand body 2.

[0032] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A pre-stressed steel strand bundle perforating device comprising a bore body (1) and a steel strand body (2), characterized by: The duct body (1) is provided with a traction moving mechanism inside, and one end of the steel strand body (2) is fixedly connected to one side of the traction moving mechanism. The traction and movement mechanism realizes the action of traction and drilling of the steel strand body (2).

2. The prestressed steel strand bundling and perforation device according to claim 1, characterized in that: The traction and movement mechanism includes a mounting plate (3), and two mounting plates (3) are respectively connected to each other by ball bearings. A plurality of worms (4) are arranged in a circular array around the axis of the mounting plate (3).

3. The prestressed steel strand bundling and perforation device according to claim 2, characterized in that: An L-shaped support block (5) is fixedly installed between the opposite surfaces of the two mounting plates (3). A fixed shaft (6) is rotatably connected between the opposite surfaces of each pair of L-shaped support blocks (5) via a ball bearing. A worm wheel (7) is fixedly connected to the central arc surface of the fixed shaft (6). The teeth of the worm wheel (7) mesh with the thread groove of the worm (4).

4. The prestressed steel strand bundling and perforation device according to claim 3, characterized in that: Rotating wheels (8) are fixedly connected to the arc surfaces on both sides of the fixed shaft (6), and the arc surfaces of the multiple rotating wheels (8) are in transmission contact with the inner wall of the channel body (1).

5. The prestressed steel strand bundling and perforation device according to claim 4, characterized in that: The two ends of the worm (4) pass through and extend out of the outer sides of the two mounting plates (3). One end of the worm (4) extending out of the mounting plate (3) is fixedly connected to a transmission sprocket (9). The teeth of the multiple transmission sprockets (9) are all connected to a transmission chain (10).

6. The prestressed steel strand bundling and perforation device according to claim 5, characterized in that: A drive motor (11) is fixedly mounted on one side of one of the mounting plates (3), and the output end of the drive motor (11) is fixedly connected to one end of one of the worm gears (4) via a coupling.

7. A prestressed steel strand bundling and perforation device according to claim 6, characterized in that: A protective shell (12) is fixedly installed on one side of the mounting plate (3). A fixing block (13) is threadedly connected to the outer surface of the protective shell (12). A fixing hole (14) is opened on one side surface of the fixing block (13). One end of the steel strand body (2) is fixedly connected to the inner wall of the fixing hole (14). A rubber protective sleeve (15) is also fixedly connected to one side of the fixing block (13). The rubber protective sleeve (15) is located on the outside of the steel strand body (2).

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