High speed hydraulic cutting shear for wire rod rolling mill

Abstract

The utility model relates to the field of high -speed hydraulic head cutting shear, disclose a high -speed hydraulic head cutting shear for wire rod rolling line, including hydraulic power device, the output shaft rotation of hydraulic power device is connected with two groups of drive disc, two groups drive disc outside are fixedly installed with cutting knife a and cutting knife b through fastening bolt respectively, two groups drive disc are fixedly installed with protection assembly near fastening bolt outside, protection assembly includes sliding slot, in the utility model, realize the comprehensive protection of fastening bolt through protection assembly: the protection piece is covered on the outside of fastening bolt through sliding slot sliding, its strip convex and the regular hexagon head of bolt adapt, both avoid bolt direct contact with external pollutants, and can through physical limit auxiliary prevent bolt loosening, cooperate the elastic structure of fixed shell and pressing piece, the protection piece can closely adhere to the bolt surface, can keep stable protection even when the equipment high -speed operation, significantly reduce bolt failure risk.

Description

Technical Field

[0001] This utility model relates to the field of high-speed hydraulic cutting head shears, and in particular to a high-speed hydraulic cutting head shear for wire rolling. Background Technology

[0002] In the modern steel industry, wire rod rolling is a crucial step in metal processing, and its production efficiency and product quality directly depend on the performance of the rolling equipment. Among these, the high-speed hydraulic head cutter, as one of the core pieces of equipment in wire rod rolling, plays a vital role in removing irregular and defective sections from the head of the rolled piece. Its stability and reliability have a decisive impact on the smoothness of subsequent rolling processes, as well as the dimensional accuracy and surface quality of the finished product.

[0003] The rolling mill is exposed to a large amount of pollutants such as cooling water, iron oxide scale, and dust. It is also accompanied by high-frequency vibration and impact loads. The connecting bolts between the cutter and the drive disc are exposed to this environment for a long time. They are prone to rust, wear or vibration loosening, which can cause the cutter to be misaligned. This can affect the cutting accuracy or even cause safety accidents such as the cutter falling off. Therefore, a high-speed hydraulic head cutter for wire rod rolling is proposed to solve the above problems. Summary of the Invention

[0004] To overcome the above shortcomings, this utility model provides a high-speed hydraulic head cutter for wire rod rolling, which aims to improve the problem in the prior art that "the connecting bolts of the head cutter are exposed to the rolling environment containing contaminants, increasing the risk of bolt failure".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-speed hydraulic cutting head shear for wire rolling, comprising a hydraulic power device, wherein the output shaft of the hydraulic power device is rotatably connected to two sets of drive discs, and cutter a and cutter b are respectively fixedly installed on the outer side of the two sets of drive discs by fastening bolts, and protective components are fixedly installed on the outer side of the two sets of drive discs near the fastening bolts; The protective component includes a slide groove, which is respectively opened on the front side of the two sets of drive discs. A fixed shell is fixedly connected to the outer side of the drive disc near the slide groove. Two sets of pressing members are slidably connected to the inner walls of the upper and lower parts of the fixed shell. A spring is provided on the inner wall of the opposite side of the two sets of pressing members. A protective member is fixedly connected to the side of the pressing member near the drive disc. The protective member is slidably connected to the outside of the slide groove and the fastening bolt.

[0006] As a further description of the above technical solution: An auxiliary component is fixedly connected to the front side of the fixed shell. The auxiliary component includes a connector. The rear side of the connector is fixedly connected to the outside of the fixed shell. A movable component is slidably connected to the inner wall of the front side of the connector. Two sets of locking blocks are fixedly connected to the rear side of the movable component. Multiple sets of slots are opened on the front side of the pressing component. The locking blocks penetrate the connector and are locked into the inner wall of the slots.

[0007] As a further description of the above technical solution: The inner wall of the moving part is threaded with a screw rod, and the rear side of the screw rod is rotatably connected to the inner wall of the connecting part.

[0008] As a further description of the above technical solution: A torsion cap is provided on the front side of the screw.

[0009] As a further description of the above technical solution: The protective component has strip-shaped protrusions on the left and right sides of its rear part, and these protrusions slide on the outside of the hexagonal head of the fastening bolt.

[0010] As a further description of the above technical solution: The opposite side of the pressing members in two adjacent groups is recessed.

[0011] As a further description of the above technical solution: The card block has grooves on both the upper and lower sides, and the grooves of the card block engage with the card slots.

[0012] This utility model has the following beneficial effects: 1. In this utility model, comprehensive protection of fastening bolts is achieved through protective components: the protective component slides over the outside of the fastening bolt through a groove, and its strip-shaped protrusion is adapted to the regular hexagonal head of the bolt. This not only prevents the bolt from directly contacting external contaminants, but also helps to prevent the bolt from loosening through physical limiting. With the elastic structure of the fixing shell and the pressing component, the protective component can fit tightly against the bolt surface, and can maintain stable protection even when the equipment is running at high speed, significantly reducing the risk of bolt failure.

[0013] 2. In this utility model, the screw rotation drives the moving part to insert the card block into the card slot of the pressing part. Under the elastic force of the spring 54, the groove and the card slot are engaged. The position of the protective part can be locked as needed to prevent the protective part from sliding accidentally during the cutting process, while ensuring that the cutter is easy to disassemble and assemble. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model; Figure 2 This is a three-dimensional structural diagram of the disassembled drive disk and cutter a in this utility model; Figure 3 This is a three-dimensional structural diagram of the disassembled protective component in this utility model; Figure 4 This is a rear-view three-dimensional structural diagram of the protective component in this utility model.

[0015] Legend: 1. Hydraulic power unit; 2. Drive disc; 3. Cutter a; 4. Cutter b; 5. Protective components; 51. Slide groove; 52. Fixed shell; 53. Pressing component; 54. Spring; 55. Protective component; 6. Auxiliary components; 61. Connecting component; 62. Moving component; 63. Locking block; 64. Screw; 65. Slot; 7. Fastening bolt. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figure 1 - Figure 3 This utility model provides one embodiment: a high-speed hydraulic cutting head shear for wire rod rolling, including a hydraulic power unit 1, which serves as the power source of the equipment. It drives two sets of drive discs 2 to rotate via an output shaft, providing stable power for the shearing action of the cutter. Its hydraulic drive characteristics enable high response speed and adjustable output torque, adapting to the dynamic shearing requirements during high-speed wire rod rolling. This is an existing structure, and those skilled in the art can implement it. Since it is prior art, it will not be described in detail in this case. The output shaft of the hydraulic power unit 1 is rotatably connected to two sets of drive discs 2. Disc 2 is the mounting carrier for the cutter. It drives the cutter a3 and cutter b4 to rotate synchronously through rotation. The relative motion of the two sets of cutters completes the shearing action of the rolled workpiece head. The cutter a3 and cutter b4 are fixedly installed on the outer side of the two sets of drive discs 2 by fastening bolts 7 respectively. The relative rotation achieves precise cutting of the rolled workpiece head. The material is alloy tool steel, which has high hardness and wear resistance to adapt to the friction and impact during high-speed shearing. The strength of the fastening bolts 7 must match the shearing force. The two sets of drive discs 2 are fixedly installed on the outer side near the fastening bolts 7. Reference Figure 2 - Figure 4The protective component 5 includes a slide groove 51, which is respectively opened on the front side of the two sets of drive discs 2 to provide a sliding track for the protective component 55, ensuring that the protective component 55 can move smoothly along the surface of the drive disc 2 to cover or expose the fastening bolt 7. The inner wall of the slide groove 51 is provided with a sealing element to form a mechanical seal with the protective component 55. The outer side of the drive disc 2 near the slide groove 51 is fixedly connected to a fixed shell 52 to provide sliding support for the pressing component 53. The upper and lower inner walls of the fixed shell 52 are slidably connected to two sets of pressing components 53. The protective component 55 is moved by manual pressing or the elastic force of the spring 54. The opposite side of the two sets of pressing components 53 is recessed to accommodate the spring 54. The inner wall of the opposite side of the two sets of pressing components 53 is provided with a spring 54, which uses elastic force to make the pressing component 53 always have a tendency to move in opposite directions, causing the protective component 55 to fit tightly against the surface of the fastening bolt 7, ensuring the stability of the protective state.

[0018] Reference Figure 2 - Figure 4 A protective component 55 is fixedly connected to the side of the pressing component 53 near the drive disc 2. The protective component 55 is slidably connected to the outside of the slide groove 51 and the fastening bolt 7. Strip-shaped protrusions are provided on the left and right sides of the rear of the protective component 55. These protrusions slide on the outside of the regular hexagonal head of the fastening bolt 7. The protective component 55 is a direct protective structure for the fastening bolt 7. The rear strip-shaped protrusions fit the regular hexagonal head of the fastening bolt 7. The protective component 55 can completely cover the bolt, forming a mechanical seal to prevent corrosion from contaminants such as cooling water and iron oxide scale. It can also physically limit the bolt to prevent loosening. The protective component 55 slides along the slide groove 51, exposing the bolt when the cutter is replaced, thus balancing protection and ease of operation.

[0019] Reference Figure 2 and Figure 3An auxiliary component 6 is fixedly connected to the front side of the fixed housing 52. The auxiliary component 6 includes a connector 61, which has a U-shaped structure and is fixed to the front side of the fixed housing 52 to provide installation support for the movable component 62 and the screw 64. The rear side of the connector 61 is fixedly connected to the outer side of the fixed housing 52. The movable component 62 is slidably connected to the inner wall of the front side of the connector 61. By moving back and forth, the locking block 63 can engage or disengage with the locking groove 65 of the pressing component 53. Two sets of locking blocks 63 are fixedly connected to the rear side of the movable component 62. Multiple sets of locking grooves 65 are opened on the front side of the pressing component 53. The locking block 63 passes through the connector 61 and engages with the inner wall of the locking groove 65. The upper and lower sides of the locking block 63 are provided with grooves. The groove and the slot 65 engage with each other. The grooves on the upper and lower sides of the locking block 63 engage with the inner wall of the slot 65. Under the elastic force of the spring 54, the locking can be reliably locked through mechanical engagement, avoiding positional displacement caused by vibration and preventing the protective part 55 from accidentally sliding during equipment operation, ensuring stable protection. At the same time, the bolts can be exposed when the cutter is replaced, balancing protection and ease of operation. The inner wall of the moving part 62 is threaded with a screw 64. The rear side of the screw 64 is rotatably connected to the inner wall of the connector 61. A torsion cap is provided on the front side of the screw 64. By rotating the torsion cap of the screw 64, the position of the moving part 62 can be precisely adjusted, so as to achieve precise engagement or disengagement of the locking block 63 and the slot 65.

[0020] Working Principle: During operation, the hydraulic power unit 1 serves as the core power source, converting hydraulic energy into mechanical energy through the output shaft. This drives two sets of drive discs 2 to rotate synchronously at a set speed. The hydraulic drive characteristic enables high response speed, adapting to the high-speed movement of the rolled workpiece. As the drive disc 2 rotates, the cutters a3 and b4, fixed to its outer side by fastening bolts 7, rotate synchronously with the drive disc 2. The two sets of cutters are arranged opposite each other, and the intersection of their rotation trajectories achieves shearing of the head of the rolled workpiece. When the head of the rolled workpiece reaches the shearing position, the cutting edges of cutters a3 and b4 quickly close, completing the cutting action. Subsequently, they are reset under the drive of the drive disc 2, awaiting the next shearing command.

[0021] When the equipment is running normally, the protective component 5 is in the closed state. The spring 54 in the fixed shell 52 applies an opposing elastic force to the two sets of pressing parts 53, which drives the protective part 55 connected to the pressing parts 53 to apply pressure, so that the strip-shaped protrusion at the rear of the protective part 55 completely fits the outer side of the regular hexagonal head of the fastening bolt 7 and forms a mechanical seal. In this state, the protective part 55 can isolate the contact between the bolt and contaminants such as cooling water and iron oxide scale, and prevent rust. At the same time, the physical limiting effect of the strip-shaped protrusion and the bolt head can help prevent the bolt from loosening due to equipment vibration and ensure the stability of the cutter installation.

[0022] When the cutter needs to be replaced, the operator manually presses the two sets of pressing parts 53, rotates the torsion cap on the front side of the screw 64, so that the screw 64 rotates along the inner wall of the connector 61, and pushes the moving part 62 forward through the thread transmission, so that the locking block 63 on the moving part 62 is pulled out from the slot 65, and the locking of the pressing parts 53 is released.

[0023] Continue pressing to overcome the elasticity of the spring 54 and make the pressing part 53 slide into the fixed shell 52, causing the protective part 55 to separate along the slide groove 51, exposing the fastening bolt 7. At this time, rotate the torsion cap in the opposite direction to drive the locking block 63 on the moving part 62 to insert into the inner wall of another set of locking slots 65, locking the pressing part 53 in the telescopic state. Then the bolt can be unscrewed to complete the disassembly and replacement of the cutter.

[0024] To prevent the protective component 55 from slipping unexpectedly due to vibration during the shearing process, its position needs to be locked by the auxiliary component 6. Rotate the torsion cap on the front side of the screw 64 to make the screw 64 rotate along the inner wall of the connector 61. Through the threaded transmission, push the moving component 62 to slide backward, causing the two sets of locking blocks 63 to pass through the connector 61 and lock into the locking groove 65 on the front side of the pressing component 53. The grooves on the upper and lower sides of the locking block 63 are tightly engaged with the inner wall of the locking groove 65. With the elastic preload of the spring 54, the protective component 55 is rigidly locked, ensuring the stability of the protective state during high-speed shearing.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high speed hydraulic crop shear for wire rod rolling line comprising a hydraulic power unit (1) characterized in that: The output shaft of the hydraulic power unit (1) is rotatably connected to two sets of drive discs (2). Cutters a (3) and b (4) are respectively fixedly installed on the outside of the two sets of drive discs (2) by fastening bolts (7). Protective components (5) are fixedly installed on the outside of the two sets of drive discs (2) near the fastening bolts (7). The protective component (5) includes a slide groove (51), which is respectively opened on the front side of the two sets of drive discs (2). The drive disc (2) is fixedly connected to a fixed shell (52) near the outer side of the slide groove (51). The upper and lower inner walls of the fixed shell (52) are slidably connected to two sets of pressing parts (53). The inner walls of the two sets of pressing parts (53) on opposite sides are provided with springs (54). The side of the pressing part (53) near the drive disc (2) is fixedly connected to a protective part (55). The protective part (55) is slidably connected to the outside of the slide groove (51) and the fastening bolt (7).

2. The high speed hydraulic crop shear for wire rod rolling line according to claim 1, characterized in that: An auxiliary component (6) is fixedly connected to the front side of the fixed shell (52). The auxiliary component (6) includes a connector (61). The rear side of the connector (61) is fixedly connected to the outside of the fixed shell (52). A movable component (62) is slidably connected to the inner wall of the front side of the connector (61). Two sets of locking blocks (63) are fixedly connected to the rear side of the movable component (62). Multiple sets of slots (65) are opened on the front side of the pressing component (53). The locking block (63) penetrates the connector (61) and is locked into the inner wall of the slot (65).

3. The high speed hydraulic crop shear for wire rod rolling line according to claim 2, characterized in that: The inner wall of the movable part (62) is threaded with a screw (64), and the rear side of the screw (64) is rotatably connected to the inner wall of the connector (61).

4. The high speed hydraulic crop shear for wire rod rolling line according to claim 3, characterized in that: A torsion cap is provided on the front side of the screw (64).

5. The high speed hydraulic crop shear for wire rod rolling line according to claim 1, characterized in that: The protective component (55) has strip-shaped protrusions on the left and right sides of its rear part, and the strip-shaped protrusions of the protective component (55) slide on the outside of the regular hexagonal head of the fastening bolt (7).

6. A high speed hydraulic crop shear for wire rod rolling as claimed in claim 1 wherein: The opposite side of the two adjacent sets of pressing members (53) is recessed.

7. The high speed hydraulic crop shear for wire rod rolling line according to claim 2, characterized in that: The card block (63) has grooves on both the upper and lower sides, and the grooves of the card block (63) engage with the card slot (65).

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