Stranding device for prestressed steel strand

Abstract

The utility model discloses a stranding device for prestressed steel strands, which comprises a base, the top of the base is fixedly connected with a main support, the top of the main support is fixedly connected with a main motor, the right output end of the main motor is fixedly connected with a rotating shaft, the top of the base is fixedly connected with a wire mounting seat, and the right output end of the rotating shaft is fixedly connected with the wire mounting seat. A wire loading disc is rotationally connected to the wire loading seat, a wire loading hole is formed in the wire loading disc in a left-right penetrating mode, an electric hydraulic rod is fixedly connected to the right side wall of the wire loading disc, and a wire blocking plate is fixedly connected to the right side wall of the electric hydraulic rod. According to the pre-stressed steel strand twisting device, the wire loading seat, the wire loading disc, the wire loading hole, the electric hydraulic rod, the wire blocking plate and the wire blocking hole are arranged, and the electric hydraulic rod is additionally arranged between the wire loading disc and the wire blocking plate, so that the distance between the wire loading disc and the wire blocking plate is adjustable, the twisting angle between strands is changed in the pre-stressed steel strand twisting process, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prestressed steel strand production, in particular to a stranding device for prestressed steel strand. Background Art

[0002] Prestressed steel strand is a twisted steel cable consisting of 2, 3, 7 or 19 high-strength steel wires, which has been stress-relieved and is suitable for prestressed concrete and similar purposes. Prestressed steel strand is mainly used in post-tensioned and pre-tensioned prestressed concrete projects, with the largest usage in bridge structures.

[0003] The process of twisting the steel wires into rope strands in a regular spiral arrangement around the center line of the strand core according to technical requirements on a stranding machine is one of the important processes in the production of steel wire ropes. The structure of the strands is different, and the diameter, number and arrangement of the steel wires in the strands are different, and the number of layers of steel wires arranged outside the strand core is also different. Generally, one, two, three or even more layers of steel wires can be arranged outside the strand core. Strands can be divided into round strands and special-shaped strands according to their cross-sectional shape. Strands can be twisted using a tubular stranding machine, a basket stranding machine or a tubeless stranding machine.

[0004] In the existing twisting device for prestressed steel strands, the angle between each steel strand is fixed, and it is impossible to twist the steel strands at different angles. Moreover, during the twisting process, in order to enhance the corrosion resistance of the steel strands, grease is generally added. When adding the grease, it is sprayed directly on the steel strands, resulting in a large amount of grease waste and increased production costs. Utility Model Content

[0005] The utility model aims to provide a stranding device for prestressed steel strands, by adding an electric hydraulic rod between a wire loading drum and a wire baffle plate, so that the distance between the wire loading drum and the wire baffle plate becomes adjustable, thereby changing the twisting angle between each strand during the twisting process of the prestressed steel strands, improving the practicability of the device, adding grease to the oil pan, and taking away the grease overflowing from the oil hole when the prestressed steel strands pass through the oil ring, thereby reducing the waste of grease and saving production costs.

[0006] To achieve the above-mentioned purpose, a stranding device for prestressed steel strands is provided, comprising: a machine base, a main support is fixedly connected to the top of the machine base, a main motor is fixedly connected to the top of the main support, a rotating shaft is fixedly connected to the right output end of the main motor, a wire loading seat is fixedly connected to the top of the machine base, a wire loading disc is rotatably connected to the wire loading seat, wire loading holes are provided on the left and right sides of the wire loading disc, an electric hydraulic rod is fixedly connected to the right side wall of the wire loading disc, a wire blocking plate is fixedly connected to the right side wall of the electric hydraulic rod, wire blocking holes are provided on the left and right sides of the wire blocking plate, an oil pan is fixedly connected to the right side wall of the wire blocking plate, the oil pan is provided with through holes on the left and right sides, an oil ring is rotatably provided inside the through hole, oil holes are provided on the circumferential surface of the oil ring, an oil inlet pipe is fixedly connected to the circumferential surface of the oil pan, a stranding seat is fixedly connected to the top of the machine base, a stranding disc is fixedly connected to the stranding seat, and stranding holes are provided on the left and right sides of the stranding disc.

[0007] According to the stranding device for prestressed steel strands, the main support, wire loading seat and stranding seat are distributed in sequence from left to right.

[0008] According to the stranding device for prestressed steel strands, the number of the wire loading holes is multiple and evenly distributed on the wire loading reel.

[0009] According to the stranding device for prestressed steel strands, the number of the electric hydraulic rods is plural and evenly distributed between the wire loading drum and the wire baffle.

[0010] According to the stranding device for prestressed steel strands, the number of the wire blocking holes is multiple and evenly distributed on the wire blocking plate.

[0011] According to the stranding device for prestressed steel strands, the through holes and oil rings are provided in multiple numbers and are evenly distributed on the oil pan, and the oil holes are provided in multiple numbers and are evenly distributed on the oil ring.

[0012] According to the stranding device for prestressed steel strands, one end of the rotating shaft away from the main motor is fixedly connected to the wire loading drum.

[0013] The above scheme has the following beneficial effects:

[0014] 1. By setting a wire loading seat, a wire loading drum, a wire loading hole, an electric hydraulic rod, a wire blocking plate and a wire blocking hole, an electric hydraulic rod is added between the wire loading drum and the wire blocking plate, so that the distance between the wire loading drum and the wire blocking plate becomes adjustable, thereby changing the twisting angle between each strand during the twisting process of the prestressed steel strand, thereby improving the practicality of the device;

[0015] 2. By setting an oil pan, a through hole, an oil ring, an oil hole and an oil inlet pipe, grease is added to the oil pan. When the prestressed steel strand passes through the oil ring, the grease overflowing from the oil hole can be taken away, thereby reducing the waste of grease and saving production costs.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0018] Figure 1 This is a front view of a stranding device for prestressed steel strands of the utility model;

[0019] Figure 2 This is a right side view of a stranding device for prestressed steel strands of the utility model;

[0020] Figure 3 This is a structural diagram of an oil pan of a stranding device for prestressed steel strands of the utility model;

[0021] Figure 4 The utility model is a diagram showing the internal structure of an oil pan of a stranding device for prestressed steel strands.

[0022] Legend:

[0023] 1. Machine base; 2. Main support; 3. Main motor; 4. Rotating shaft; 5. Wire loading seat; 6. Wire loading drum; 7. Wire loading hole; 8. Electric hydraulic rod; 9. Wire blocking plate; 10. Wire blocking hole; 11. Oil pan; 12. Through hole; 13. Oil ring; 14. Oil hole; 15. Oil inlet pipe; 16. Wire stranding seat; 17. Wire stranding drum; 18. Wire stranding hole. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] Reference Figure 1-4The utility model embodiment is a stranding device for prestressed steel strands, which includes: a machine base 1, a main support 2 is fixedly connected to the top of the machine base 1, a main motor 3 is fixedly connected to the top of the main support 2, a rotating shaft 4 is fixedly connected to the right output end of the main motor 3, a wire loading seat 5 is fixedly connected to the top of the machine base 1, a wire loading drum 6 is rotatably connected to the wire loading seat 5, an end of the rotating shaft 4 away from the main motor 3 is fixedly connected to the wire loading drum 6, a wire loading hole 7 is arranged on the left and right of the wire loading drum 6, a plurality of wire loading holes 7 are arranged and are evenly distributed on the wire loading drum 6, an electric hydraulic rod 8 is fixedly connected to the right side wall of the wire loading drum 6, a wire baffle 9 is fixedly connected to the right side wall of the electric hydraulic rod 8, a plurality of electric hydraulic rods 8 are arranged and are evenly distributed between the wire loading drum 6 and the wire baffle 9, when the electric hydraulic rod 8 is started, the distance between the wire loading drum 6 and the wire baffle 9 changes, so that the angle between each strand of the prestressed steel strand changes during the twisting process The baffle plate 9 is provided with baffle holes 10 on the left and right sides, and the number of baffle holes 10 is set to be multiple and evenly distributed on the baffle plate 9. An oil pan 11 is fixedly connected to the right side wall of the baffle plate 9. The oil pan 11 is provided with through holes 12 on the left and right sides. An oil ring 13 is provided inside the through hole 12 for rotation. The circumferential surface of the oil ring 13 is provided with oil holes 14. The number of through holes 12 and oil rings 13 is set to be multiple and evenly distributed on the oil pan 11. The number of oil holes 14 is set to be There are multiple ones, which are evenly distributed on the oil ring 13. The oil pan 11 is filled with grease. When the prestressed steel strand passes through the oil ring 13, the grease overflowing from the oil hole 14 adheres to the prestressed steel strand, thereby improving the corrosion resistance of the prestressed steel strand. An oil inlet pipe 15 is fixedly connected to the circumferential surface of the oil pan 11, and a stranded wire seat 16 is fixedly connected to the top of the machine base 1. A stranded wire drum 17 is fixedly connected to the stranded wire seat 16, and stranded wire holes 18 are set on the left and right sides of the stranded wire drum 17.

[0026] The main support 2, the wire loading seat 5 and the wire twisting seat 16 are distributed in sequence from left to right.

[0027] Working principle: each strand of the prestressed steel strand passes through the corresponding wire loading hole 7, wire retaining hole 10, and oil ring 13 in sequence, and is merged together in the stranding hole 18. When the main motor 3 is started, the wire loading drum 6 rotates, thereby starting to twist the prestressed steel strand. When the electric hydraulic rod 8 is started, the distance between the wire loading drum 6 and the wire retaining plate 9 changes, thereby changing the angle between each strand of the prestressed steel strand during the twisting process. When the prestressed steel strand passes through the oil ring 13, the grease overflowing from the oil hole 14 adheres to the prestressed steel strand, thereby improving the corrosion resistance of the prestressed steel strand and reducing the waste of grease.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A stranding device for prestressed steel strands, comprising: A machine base (1), characterized in that the top of the machine base (1) is fixedly connected to a main support (2), the top of the main support (2) is fixedly connected to a main motor (3), the right output end of the main motor (3) is fixedly connected to a rotating shaft (4), the top of the machine base (1) is fixedly connected to a wire loading seat (5), the wire loading seat (5) is rotatably connected to a wire loading disk (6), the wire loading disk (6) is provided with wire loading holes (7) on the left and right, the right side wall of the wire loading disk (6) is fixedly connected to an electric hydraulic rod (8), the right side wall of the electric hydraulic rod (8) is fixedly connected to a wire blocking plate (9), the wire blocking plate (9) is provided with a wire blocking hole (10) on the left and right sides, an oil pan (11) is fixedly connected to the right side wall of the wire blocking plate (9), the oil pan (11) is provided with a through hole (12) on the left and right sides, an oil ring (13) is rotatably provided inside the through hole (12), an oil hole (14) is provided on the circumferential surface of the oil ring (13), an oil inlet pipe (15) is fixedly connected to the circumferential surface of the oil pan (11), a stranding seat (16) is fixedly connected to the top of the machine base (1), a stranding drum (17) is fixedly connected to the stranding seat (16), and the stranding drum (17) is provided with stranding holes (18) on the left and right sides.

2. A stranding device for prestressed steel strands according to claim 1, characterized in that: The main support (2), the wire loading seat (5) and the wire twisting seat (16) are distributed in sequence from left to right.

3. A stranding device for prestressed steel strands according to claim 1, characterized in that: The number of the wire loading holes (7) is plural and evenly distributed on the wire loading tray (6).

4. A stranding device for prestressed steel strands according to claim 1, characterized in that: The number of the electric hydraulic rods (8) is plural and they are evenly distributed between the wire loading drum (6) and the wire baffle plate (9).

5. A stranding device for prestressed steel strands according to claim 1, characterized in that: The number of the wire blocking holes (10) is plural and evenly distributed on the wire blocking plate (9).

6. A stranding device for prestressed steel strands according to claim 1, characterized in that: The through holes (12) and the oil ring (13) are both provided in a plurality and are evenly distributed on the oil pan (11); the oil holes (14) are provided in a plurality and are evenly distributed on the oil ring (13).

7. A stranding device for prestressed steel strands according to claim 1, characterized in that: One end of the rotating shaft (4) away from the main motor (3) is fixedly connected to the wire loading drum (6).

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