High speed wire, rod equalizing section guide

Abstract

The application provides a high-speed wire and rod uniform temperature section guide groove, groove body units are connected at the head and tail to form a guide groove assembly, groove covers are arranged at the groove openings of the groove body units, and the groove bottom parts of the head and tail connecting parts of the upstream and downstream groove body units are provided with guide rollers. The guide rollers are arranged at the groove bottom parts of the head and tail connecting parts of the upstream and downstream groove body units, thereby forming the guide rollers arranged at intervals, and the abrasion caused by the sliding friction of the uniform temperature section is greatly reduced, the service life of the high-speed wire and rod uniform temperature section guide groove is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This invention relates to auxiliary equipment for steel rolling systems, specifically to a uniform temperature guide groove for high-speed wire rods and bars. Background Technology

[0002] High-speed wire rod and high-speed bar production utilize temperature equalization channels located between the outlet of the water tank at the pre-finishing mill and the finishing mill, and between the outlet of the water tank at the finishing mill and the wire drawing machine. The equalization zone typically ranges in length from 35m to 50m, with approximately 60 sets of equalization channels. Their primary function is to equalize the temperature of the rolled workpiece, ensuring that the internal and external temperatures are similar and that the internal and external metallographic structures are not significantly different, thereby guaranteeing the uniformity of the finished wire rod's performance.

[0003] Because the uniform temperature zone is relatively long, the number of uniform temperature guide groove units is also relatively large. Their service life, the time required to replace the guide groove after wear, and the convenience of daily maintenance all affect the rolling production rate, labor intensity, and rolling cost.

[0004] The invention patent document entitled "A Single-Wheel Combined Rolling Guide Groove" (Announcement No. CN203853382U) describes a technical solution in which a guide wheel 5 is set below a guide wheel bracket 4. Although it has a combined structure of guide groove and guide wheel, the gantry-shaped guide wheel bracket 4 spans across the guide groove cover 2, which brings many inconveniences to the assembly and maintenance of the guide groove. Summary of the Invention

[0005] The purpose of this invention is to provide a guide groove for the temperature equalization section of high-speed wire and bar materials that is easy to maintain, and facilitates the repair and replacement of severely worn groove unit sections.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a guide groove for the uniform temperature section of high-speed wire and bar, characterized in that: the groove units are connected end to end to form a guide groove assembly, the groove opening of the groove unit is covered with a groove cover unit, and the bottom of the groove at the connection between the upstream and downstream groove units is provided with guide rollers.

[0007] In the above scheme, the temperature equalization section guide trough is composed of trough units connected end to end. This allows for separate inspection and maintenance of severely worn unit sections. Combined with the guide rollers at the bottom of the trough at the connection points of the upstream and downstream trough units, the guide rollers are arranged at intervals, which greatly reduces the wear caused by sliding friction in the temperature equalization section, extends the service life of the temperature equalization section guide trough for high-speed wire rods and bars, and reduces maintenance costs. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0009] Figure 2 yes Figure 1 A three-dimensional structural diagram of the unit segment;

[0010] Figure 3 This is a three-dimensional exploded structural diagram of the unit segment of the present invention;

[0011] Figure 3a , 3b They are Figure 3 A magnified view of a portion of the image;

[0012] Figure 4 This is a three-dimensional structural diagram of the slot cover unit in the open state of the present invention;

[0013] Figure 5 This is a front view of the side view of the present invention;

[0014] Figure 6 , 7 yes Figure 5 Top view and left view;

[0015] Figure 8 This is the main view of the slot cover unit in the open state;

[0016] Figure 9 yes Figure 8 Top view;

[0017] Figure 10a yes Figure 8 The left view;

[0018] Figure 10b yes Figure 10a A schematic diagram of the opening process of the slot cover unit; Detailed Implementation

[0019] Combination Figure 1 , 2 As shown, the guide trough for the uniform temperature section of high-speed wire and bar is formed by connecting the two ends of the trough unit 10. The trough opening of the trough unit 10 is covered with a trough cover unit 20. The bottom of the trough at the connection between the two ends of the upstream and downstream trough units 10 is provided with guide rollers 30.

[0020] The tank unit 10 is horizontally placed in the U-shaped cavity of the U-shaped support 40. Two U-shaped supports 40 are arranged at the two ends of the middle section of the tank unit 10, and the U-shaped supports 40 are arranged in the limiting grooves 11 at the two ends of the middle section of the tank unit 10.

[0021] In this invention, the U-shaped support 40 is fixed to the foundation by pre-embedded anchor bolts. The number of trough units 10 is reasonably determined by the total length of the equalization section. Each trough unit 10 is fixed by two U-shaped supports 40 to achieve stable fixation. This invention decomposes the guide trough into multiple trough units 10, which allows for maintenance of trough sections with severe wear or oxidation. This not only improves maintenance efficiency but also reduces maintenance costs. Furthermore, since guide rollers 30 are provided at the downstream end of each trough unit 10, wear and deformation during high-speed wire and bar conveying are reduced, as are wear and oxidation damage to the trough units 10.

[0022] The following refers to left and right directions. Figure 2 , 3 The left and right sides of 4 are used as the reference.

[0023] The left column 41 of the two U-shaped supports 40 has pin holes 411 arranged concentrically and parallel to the length of the groove. The left side of the groove cover unit 20 is hinged by a pin 21 passing through the pin hole 411. The two right columns 42 are respectively hinged to the lower ends of the clamping rod 50 and the locking rod 60, with the hinge shaft parallel to the length of the groove. The clamping rod 50 and the locking rod 60 are respectively pressed against the right edge of the groove cover unit 20. The above solution solves the problem of the convenience of opening and closing the groove cover unit 20. At the same time, with the help of the clamping rod 50 and the locking rod 60, the stability and reliability of the groove cover unit 20 on the groove body unit 10 are ensured, the loosening of the groove cover unit 20 is avoided, and the vibration of the groove cover unit 20 when wires and bars pass through at high speed is eliminated. This not only significantly reduces noise and improves the production environment, but also eliminates fatigue damage to the equipment.

[0024] In order to reliably cover the groove cover unit 20 onto the groove body unit 10, the present invention provides first and second upper horizontal plates 22 and 23 on the groove cover unit 20. These two first and second upper horizontal plates 22 and 23 cooperate with the clamping rod 50 and the locking rod 60 respectively, as detailed below.

[0025] The slot cover unit 20 has a first upper horizontal plate 22. The left end of the first upper horizontal plate 22 has an arm 221 extending towards the pin hole 411. The lower end of the arm 221 is hinged to the pin hole 411 by a pin 21. The slot cover unit 20 also has a second upper horizontal plate 23. The left end structures of the first and second upper horizontal plates 22 and 23, and their connection structures with the left column 41, are identical. Since the left side of each slot cover unit 20 is hinged by two concentrically arranged pins 21, opening or closing the slot cover unit 20 is extremely convenient. While using overhead cranes on the rolling mill site is feasible, it is time-consuming and inefficient. To maintain the open state of the slot cover unit 20 when it is open, such as… Figure 4 , 10aAs shown, adjusting bolts 24 are connected to the left ends of the first and second upper horizontal plates 22 and 23. The direction of the core of the adjusting bolt 24 is consistent with the horizontal direction of the first and second upper horizontal plates 22 and 23. Figure 10a As can be seen, the adjusting bolt 24 is in an upright position, which supports and limits the slot cover unit 20. The upright position of the slot cover unit 20 is a reliable and stable position.

[0026] Combination Figure 2 , 3 As shown in Figures 4 and 6, the right end of the first upper horizontal plate 22 has a concave portion 222. The clamping rod 50 is an L-shaped rod. The lower end of the lower section of the clamping rod 50 is hinged to the pin hole 421 at the upper end of the right column 42 by a pin 51. The surface of the clamping rod 50 is perpendicular to the pin 51. The bent part of the clamping rod 50 has a short column 52 with a core parallel to the pin 51. There are two short columns 52, which are placed on both sides of the surface of the clamping rod 50. When the clamping rod 50 rotates around the pin 51 until the lower section of the clamping rod 50 is displaced into the notch 222a of the concave portion 222, the two short columns 52 press against the side plate 222b of the concave portion 222. The concave portion 222 is suspended outside the slot cover unit 20, which ensures that the lower rod section of the clamping rod 50 is displaced into the notch 222a of the concave portion 222 without being interfered with by the slot cover unit 20. At this time, the two short columns 52 on the clamping rod 50 press down on the side plate 222b of the concave portion 222.

[0027] The right end of the second upper horizontal plate 23 has a recessed platform 231, and the right edge of the recessed platform 231 has a protrusion 232. The locking rod 60 is a folded rod with a jaw 61 at the bend. The lower end of the locking rod 60 is hinged to the upper pin hole 422 of the right column 42 of the U-shaped support 40 by a pin 62 parallel to the groove length direction. When the locking rod 60 rotates around the pin 62, the arm end of the upper clamp arm 611 of the jaw 61 presses on the table surface of the recessed platform 231. A spring 70 is provided between the locking rod 60 and the right column 42. The elastic force provided by the spring 70 drives the arm end of the upper arm 611 of the jaw 61 to press tightly on the table surface of the recessed platform 231. In the above scheme, the recessed platform 231 and the protrusion 232 on its right side edge are provided to ensure that the upper arm 611 of the locking rod 60 is pressed tightly against the recessed platform 231. Combined with the elastic force provided by the spring 70, the right end of the second upper horizontal plate 23 has no possibility of being lifted at all, which means that the slot cover unit 20 is pressed tightly against the slot opening of the slot body unit 10.

[0028] The aforementioned clamping rod 50 and locking rod 60 work together. By gripping the handle 25 on the slot cover unit 20, the slot cover unit 20 is rotated and pressed into the slot opening of the slot body unit 10. First, the clamping rod 50 is forcefully turned so that the two short posts 52 on the clamping rod 50 press down tightly onto the side plate 222b of the concave part 222. At this time, the locking rod 60 is turned, and the arm end of the upper clamp arm 611 of the jaw 61 of the locking rod 60 can pass over the protrusion 232 on the right side edge of the recess 231 and press tightly onto the recess 231. The cooperation between the protrusion 232 and the arm end of the upper clamp arm 611 restricts the possibility of relative displacement between the two. At this time, the locking rod 60 plays a role in locking and pressing the right end of the second upper horizontal plate 23.

[0029] Combination Figure 7 , 9 In the preferred embodiments shown in 10a and 10b, the spring 70 is a torsion spring, the upper spring arm 71 is folded onto the locking rod 60, the lower spring arm 72 is folded onto the right column 42, and the spring ring of the spring 70 is fitted onto the pin 62.

[0030] The cooperation between the aforementioned countersunk platform 231, protrusion 232 and the arm end of the upper clamp arm 611 constitutes the first-level locking of the slot cover unit 20. The elastic force provided by the spring 70 achieves the second-level locking of the slot cover unit 20. The cam structure described below constitutes the third-level locking of the slot cover unit 20. That is, the arm end of the lower arm 612 of the tiger's mouth 61 has a cam-shaped projection profile perpendicular to the slot length direction. When the arm end of the upper arm 611 is pressed tightly against the table surface of the countersunk platform 231, the apex of the cam is located below the stop point. The lower arm 612 of the tiger mouth 61 has a cam-shaped profile at its end. The apex of the cam profile is the point on the cam profile that is farthest from the hinge core of the pin 62. When the locking rod 60 rotates around the pin 62, the cam apex at the end of the lower arm 612 begins to contact and press against the outer wall of the right groove wall of the groove unit 10. When the cam apex just passes the point closest to the pin core of the right groove wall of the groove unit 10, i.e. the stop point, the end of the upper arm 611 is pressed tightly against the table surface of the sinking platform 231. Without external force, it is almost impossible for the cam apex to rise back to its original position and pass the stop point.

[0031] The aforementioned three-stage locking mechanism achieves three-stage locking of the slot cover unit 20, which is of paramount importance because the impact loads when high-speed wires and bars pass through are extremely complex, with not only multiple frequencies but also a wide amplitude range. Therefore, the stability of the slot cover unit 20 when it is closed on the slot body unit 10 is extremely important.

[0032] The gripper 611 on the locking lever 60 is located at the upper part of the lower section. The upper part of the lever section 611 is a handle 63 for easy gripping. When the end of the upper arm 611 is pressed tightly against the surface of the sinker 231, the extension direction of the handle 63 is the upper right side of the slot unit 10. Figure 2 , 7As shown in the diagram. The locking rod 60 provided by this solution can be locked by the operator standing next to the guide groove of the temperature equalization section and pulling the handle 63 upwards. The force required is small and the operation is very convenient. To unlock, simply press the handle 63 downwards.

[0033] The upper part of the clamping rod 50 is a handle 53. When the two short posts 52 on the clamping rod 50 are pressed onto the side plate 222b of the concave part 222, the handle 53 is horizontally suspended above the first upper horizontal plate 22. The handle 53 is relatively long, which can provide a relatively large initial rod force to ensure that the slot cover unit 20 can be tightly pressed onto the slot body unit 10 when the first upper horizontal plate 22 is initially pressed, thus providing a prerequisite for the locking operation of the locking rod 60.

[0034] like Figure 4 , 8 As shown in Figures 10a and 10b, adjusting bolts 24 are connected to the left ends of the first and second upper horizontal plates 22 and 23. The direction of the rod core of the adjusting bolt 24 is consistent with the horizontal direction of the first and second upper horizontal plates 22 and 23. The adjusting bolts 24 can provide support for the opening slot cover unit 20, making it stable and upright, which is convenient for maintenance operations.

[0035] like Figure 2 , 3 As shown in Figures 4, 5, and 8, the idler roller 30 is hinged to the notch of the concave support plate 32 by the roller shaft 31. The concave support plate 32 is fixed on the bottom of the trough at the downstream end of the trough unit 10, with the notch pointing downstream. The concave support plate 32 is fixed on the bottom of the trough at the downstream end of the trough unit 10, which not only reliably fixes the idler roller 30 but also facilitates its maintenance operation. At the same time, it does not interfere with the opening and closing operation of the trough cover unit 20.

[0036] To ensure that wires and bars are first introduced into the upstream section of the uniform temperature guide channel, the inlet of the upstream channel unit 10 is shaped like a trumpet with a large opening at the end. This allows the wires and bars to be smoothly introduced. Figure 3 As shown.

[0037] The technical solution provided by this invention allows for convenient and quick opening and locking of the trough cover unit 20, facilitating the handling of steel accumulation accidents and routine cleaning of oxide scale. The idler rollers 30 at the joint of adjacent trough units 10 provide rolling conveying, reducing the proportion of sliding friction, extending service life, reducing consumption, saving costs, and reducing workpiece scratches. The top and bottom of the roller trough of the idler roller 30 are 1-2 mm higher than the bottom arc surface of the trough unit 10. Except for the head and tail, the workpiece runs on the steel arc surface of the adjacent idler rollers, so the idler roller 30 will be the main wear and tear consumable part, and its replacement is extremely convenient. In addition, the idler roller 30 is supported by an eccentric shaft, allowing for height adjustment, which can be repeated after slight wear.

Claims

1. A high speed wire, bar equalizing segment guide characterized by: The groove body units (10) are connected head to tail to form a guide groove assembly, the groove mouth of the groove body unit (10) is covered by a groove cover unit (20), the groove bottom of the head-to-tail connection position of the upstream and downstream groove body units (10) is provided with a supporting roller (30), and the supporting surface of the supporting roller (30) is higher than or equal to the groove bottom of the groove body unit (10); The groove body unit (10) is horizontally arranged in the U-shaped cavity of the U-shaped support (40), and two U-shaped supports (40) are arranged at the positions corresponding to the two ends of the middle section of the groove body unit (10); The left stand column (41) of the two U-shaped supports (40) is provided with a pin shaft hole (411) parallel to the groove length direction and arranged in the same core, the left side of the groove cover unit (20) is hinged by a pin shaft (21) penetrating the pin shaft hole (411), the right stand column (42) is hinged with the lower end of a pressing rod (50) and a locking rod (60) and the hinge shaft core is parallel to the groove length direction, and the pressing rod (50) and the locking rod (60) are respectively arranged at the right edge of the groove cover unit (20); The groove cover unit (20) is provided with a first upper horizontal plate (22), the left end of the first upper horizontal plate (22) is provided with an arm rod (221) extending to the position of the pin shaft hole (411), and the lower end of the arm rod (221) is hinged to the pin shaft hole (411) by the pin shaft (21); The right end of the first upper horizontal plate (22) is provided with a concave part (222), the pressing rod (50) is an L-shaped rod, the lower end of the lower rod segment of the pressing rod (50) is hinged to the shaft pin hole (421) in the upper end of the right stand column (42) by a shaft pin (51), the rod body of the pressing rod (50) is perpendicular to the shaft pin (51), the bent part of the pressing rod (50) is provided with a short column (52) with a shaft column core parallel to the shaft pin (51), the short column (52) is provided with two short columns arranged on both sides of the rod body of the pressing rod (50), and when the pressing rod (50) is rotated around the shaft pin (51) to the position where the lower rod segment of the pressing rod (50) is displaced into the notch (222a) of the concave part (222), the two short columns (52) are arranged on the side plates (222b) of the concave part (222); The groove cover unit (20) is provided with a second upper horizontal plate (23), the left end structures of the first upper horizontal plate (22) and the second upper horizontal plate (23) are the same as the connection structure of the left stand column (41), the right end of the second upper horizontal plate (23) is provided with a sunken table (231), the right side edge of the sunken table (231) is provided with a protrusion (232), the locking rod (60) is a folded rod and the bent part is provided with a tiger mouth (61), the lower end of the locking rod (60) is hinged to the upper end pin hole (422) of the right stand column (42) of the U-shaped support (40) by a pin (62) parallel to the groove length direction, when the locking rod (60) is rotated around the pin (62), the arm end of the upper clamping arm (611) of the tiger mouth (61) is arranged on the table surface of the sunken table (231), and a spring (70) is arranged between the locking rod (60) and the right stand column (42), and the spring force provided by the spring (70) drives the arm end of the upper arm (611) of the tiger mouth (61) to be tightly pressed on the table surface of the sunken table (231).

2. The high speed wire, bar equalizing segment guide of claim 1, wherein: The spring (70) is a torsion spring, the upper spring arm (71) is folded on the locking rod (60), the lower spring arm (72) is folded on the right vertical column (42), and the spring ring of the spring (70) is sleeved on the pin (62).

3. The high speed wire, bar equalizing segment guide of claim 1 wherein: The arm end of the lower arm (612) of the tiger mouth (61) is in cam shape in the projection profile perpendicular to the length direction of the groove, and the arm end of the upper arm (611) is tightly pressed on the table surface of the sunken table (231), and the top point of the cam is below the stop point.

4. The high speed wire, rod equalizing segment guide of claim 1 wherein: The tiger mouth (61) on the locking rod (60) is arranged at the upper section of the lower section, the rod section of the upper part of the tiger mouth (61) is a handle (63) for easy holding, and the extension direction of the handle (63) is the upper right of the groove body unit (10) when the arm end of the upper arm (611) is tightly pressed on the table surface of the sunken table (231).

5. The high speed wire, rod equalizing segment guide of claim 1 wherein: The upper rod of the pressing rod (50) is a handle rod (53), and when the two short columns (52) on the pressing rod (50) are pressed on the side plate (222b) of the concave part (222), the handle rod (53) is suspended transversely above the first upper transverse plate (22).

6. The high speed wire, rod equalizing segment guide of claim 1 wherein: The left end of the first upper transverse plate (22) and the second upper transverse plate (23) is connected with an adjusting bolt (24), and the rod core direction of the adjusting bolt (24) is consistent with the transverse direction of the first upper transverse plate (22) and the second upper transverse plate (23).

7. The high speed wire, rod equalizing segment guide of claim 1 wherein: The idler roller (30) is hinged to the notch of the concave bracket plate (32) by the roller shaft (31), the concave bracket plate (32) is fixed on the groove bottom of the downstream end of the groove body unit (10) and the notch points to the downstream direction, and the top groove bottom of the roller groove of the idler roller (30) is 1-2mm higher than the arc surface of the groove bottom of the groove body unit (10).

8. The high speed wire, rod equalizing segment guide of claim 1 wherein: The inlet of the groove body unit (10) at the upstream end is in a large-mouthed horn shape.

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