Anti-blocking fan-shaped section water channel of continuous casting machine

Abstract

The application discloses a continuous casting machine anti-blocking fan-shaped section water channel and belongs to the technical field of steel smelting devices, characterized in that: the upper end of the replacement pipe passes through the through hole in the upper end of the water channel square pipe, and the lower end passes through the through hole in the lower end of the water channel square pipe; an axial through hole is arranged at the shaft center of the replacement pipe, a piston device is arranged in the axial through hole of the replacement pipe, the piston device comprises an outer piston cylinder and an inner piston sheet, a third compression spring is sleeved on the outer side of a piston rod, the upper end of the third compression spring is connected with the piston device, the lower end of the third compression spring is connected with a second limiting ring, and the positioning ring is abutted on the first limiting ring by the third compression spring; the lower end of the water channel square pipe is provided with a shell, the left end of the fastening end plate is provided with a guide hole, and the lower end of the piston rod is fixedly connected with the upper end of a double-sided ratchet through the guide hole of the left end of the fastening end plate. Compared with the prior art, the application has the characteristics of simple structure and reasonable design.

Description

TECHNICAL FIELD

[0001] The application is a divisional application of "Anti-blocking Fan-shaped Section Water Channel of Continuous Casting Machine" (application number: 2018108243071), and relates to a slab continuous casting machine fan-shaped section water channel, in particular to a cooling water channel convenient for cleaning internal sundries. BACKGROUND

[0002] The existing slab continuous casting machine original fan-shaped section equipment cooling water channel is designed as a plain carbon steel square tube. If the fan-shaped section is operated for too long, the cooling square tube will be seriously corroded and delaminated, and water leakage will occur frequently, which seriously restricts the smooth production. On the one hand, it affects the quality of the cast slab to some extent, and on the other hand, the insufficient water quantity leads to that the cooling of the fan-shaped section roller and bearing is not in place, and the increase of non-planned downtime.

[0003] The following prior art is disclosed in the application for invention, "A Fan-shaped Section Water Channel Modification Method of Continuous Casting Machine", with application number: 2012102225335 and name: "A Fan-shaped Section Water Channel Modification Method of Continuous Casting Machine", which was published on October 17, 2012. The original water channel below the bearing seat is sealed and welded, and a bend joint is welded on the side of the bearing seat base. It is still acceptable in a short time, but after a long time of operation, the pipe bend is easy to be blocked, the internal part of the bearing seat is not easy to be cleaned, and the cooling effect will be poor in the later period. SUMMARY

[0004] The technical task of the present application is to solve the above problems of the prior art, and to provide a cooling water channel convenient for cleaning internal sundries.

[0005] The technical scheme that the application solves the technical problems is: a continuous casting machine anti-blocking fan-shaped section water channel, characterized by comprising a water channel square tube, a replacement tube, an O-shaped sealing ring and a fastening end plate; the upper and lower ends of the water channel square tube are respectively provided with a plurality of through holes, the upper end of the replacement tube passes through the through hole in the upper end of the water channel square tube, and the lower end of the replacement tube passes through the through hole in the lower end of the water channel square tube; an axial through hole is arranged at the axial center of the replacement tube, a plurality of liquid inlet holes are arranged on the side wall of the replacement tube and communicated with the axial through hole, the liquid inlet holes are located in the cavity of the water channel square tube, and the upper end of the replacement tube is provided with external threads; the lower end of the replacement tube is provided with external threads, the fastening end plate is provided with a threaded blind hole, the threaded blind hole of the fastening end plate is connected with the replacement tube through threads, and the fastening end plate and the replacement tube are sealed through the O-shaped sealing ring; a piston device is arranged in the axial through hole of the replacement tube, the piston device comprises an outer piston cylinder and an inner piston sheet, the outer piston cylinder is provided with a cavity with an open lower end, the inner piston sheet is arranged in the cavity of the outer piston cylinder, a through hole is arranged at the center of the upper end plate of the outer piston cylinder, a piston rod is fixedly connected with the outer piston cylinder by passing through the through hole in the upper end plate of the outer piston cylinder, a fixing ring is arranged at the open lower end of the outer piston cylinder, and the inner piston sheet and the fixing ring are connected through a first tensile spring; a plurality of circumferentially and uniformly arranged long-strip-shaped through holes are arranged on the upper end wall of the outer piston cylinder, a plurality of circumferentially and uniformly arranged long-strip-shaped through holes are arranged on the inner piston sheet, and the long-strip-shaped through holes on the upper end wall of the outer piston cylinder and the long-strip-shaped through holes on the inner piston sheet are staggered; a flange is arranged at the lower end of the inner piston sheet, the flange is provided with a through hole, and the piston rod passes through the through hole in the flange; a stepped blind hole is arranged at the upper end of the piston rod, the upper end of the stepped blind hole is a small-diameter hole, the lower end of the stepped blind hole is a large-diameter hole, a partition plate is arranged in the large-diameter hole to divide the large-diameter hole into two parts, the partition plate is provided with a through hole coaxial with the small-diameter hole; the upper end of a first guide rod is connected with a positioning ring, an axial ring is arranged above the partition plate of the large-diameter hole, a first compression spring is arranged outside the first guide rod, the upper end of the first compression spring is connected with the axial ring, and the lower end of the first compression spring is connected with the partition plate; a positioning block is arranged at the lower half of the large-diameter hole formed by the partition plate, the positioning block is in the shape of a truncated cone, the small-diameter end of the positioning block is connected with the lower end of the first guide rod; a plurality of circumferentially and uniformly distributed positioning blind holes are arranged on the inner wall of the through hole in the flange, the positioning blind holes are arranged at a certain angle with the axis of the flange, and the hole bottoms of the positioning blind holes are higher than the hole openings; a plurality of circumferentially and uniformly distributed guide through holes are arranged in the lower half of the large-diameter hole of the piston rod, the guide through holes are arranged at the same angle as the positioning blind holes, a positioning pin shaft is arranged in the guide through hole, and the outer end of the positioning pin shaft abuts against the inner wall of the through hole in the flange, and the inner end of the positioning pin shaft abuts against the side surface of the positioning block.The inner wall of the axial through hole of the replacement pipe is respectively provided with a first limiting ring and a second limiting ring, the first limiting ring is located above the second limiting ring, the piston device is located between the first limiting ring and the second limiting ring, the outer side of the piston rod is sleeved with a third compression spring, the upper end of the third compression spring is connected with the piston device, the lower end is connected with the second limiting ring, the positioning ring is pressed on the first limiting ring by the third compression spring; the lower end of the water channel square pipe is provided with a shell, the left end of the fastening end plate is provided with a guide hole, the lower end of the piston rod is fixedly connected with the upper end of the double-sided ratchet through the guide hole of the left end of the fastening end plate, a sealing ring is arranged between the piston rod and the guide hole of the left end of the fastening end plate; both ends of the double-sided ratchet are provided with ratchet teeth, the outer side of the shell is respectively provided with a lever plate, and the lever plate is hinged to the shell; the right end of the lever plate is provided with a connecting shaft, the outer side wall of the shell is provided with an arc-shaped through hole, the connecting shaft is connected with the pawl through the arc-shaped through hole of the shell, the right end of the lever plate is rotationally connected with the connecting shaft, the connecting shaft is provided with a shaft ring, the shaft ring of the connecting shaft is provided with a circular arc-shaped sliding block, the right end of the lever plate is provided with a circular arc-shaped sliding groove, the circular arc-shaped sliding block is placed in the circular arc-shaped sliding groove, one end of the circular arc-shaped sliding block is connected with the wall of one end of the circular arc-shaped sliding groove through a fifth compression spring, and the pawl is placed in the cavity of the shell; both sides of the double-sided ratchet are respectively provided with a sliding groove, both sides of the shell are provided with a sliding block, and the sliding block is placed in the sliding groove of the double-sided ratchet; the left end of the lever plate is provided with a rectangular guide hole, a water wheel is arranged in the water channel square pipe, a protective shell is fixedly arranged on the upper wall of the water channel square pipe, the protective shell is provided with a cavity with an open lower end, and the protective shell covers the upper half of the water wheel; the central hole of the water wheel is fixedly connected with a rotating shaft, the outer side wall of the water channel square pipe is provided with a through hole, the outer end of the rotating shaft is connected with the gear hole of the driving gear through the through hole on the outer side wall of the water channel square pipe, and the inner end is rotationally connected with the inner side wall of the water channel square pipe; the outer wall of the shell is rotationally connected with a first driven gear, the driving gear is engaged with the first driven gear, the first driven gear is coaxially connected with a rotating wheel, the rotating wheel is provided with a guide pin shaft, and the guide pin shaft is placed in the rectangular guide hole of the lever plate; the cavity of the shell is provided with a supporting plate, the supporting plate is provided with a guide through hole, the right end of a second guide rod passes through the guide through hole on the supporting plate, the left end is connected with a positioning plate, the left end of the positioning plate is provided with an inclined surface, the inclined surface of the positioning plate is located on the inclined surface of the ratchet tooth on the right side of the double-sided ratchet, a second compression spring is sleeved on the second guide rod, the left end of the second compression spring is connected with the positioning plate, the right end is connected with the supporting plate, the right end of the second guide rod is provided with a positioning groove, the two inner side walls of the shell are respectively hinged to the inflection points of a V-shaped plate, and the right ends of the two V-shaped plates are connected through a positioning shaft.The double-sided ratchet is provided with a top plate on both sides of the position close to the lower end, the left end of the V-shaped plate is placed on the top plate, the right end of the V-shaped plate is provided with a pin shaft, the inner side wall of the shell is provided with a pin shaft, and the two pin shafts are connected through a second tension spring, so that the left end of the V-shaped plate is pressed on the top plate; the uppermost end of the right end of the double-sided ratchet is provided with a ratchet with a larger width than the lower end, and the lower end of the shell is provided with a through hole.

[0006] The replacement pipe is connected and sealed with the through hole of the upper end wall of the square pipe of the water channel through an O-shaped sealing ring, and the upper end of the replacement pipe is provided with a plurality of annular slides, and the annular slides are provided with O-shaped sealing rings.

[0007] The lower end surface of the right end fixed end plate is provided with a rectangular notch.

[0008] Compared with the prior art, the present application has the following outstanding beneficial effects:

[0009] 1. effectively reducing the maintenance workload of maintenance personnel;

[0010] 2. convenient replacement, self-repairing and fast maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is the front view of example 1.

[0012] Figure 2 is the internal structure schematic view of example 1.

[0013] Figure 3 is Figure 1 the partial enlarged view of part A in the middle.

[0014] Figure 4 is Figure 1 the partial enlarged view of part B in the middle.

[0015] Figure 5 is the structure schematic view of the piston device in example 1.

[0016] Figure 6 is the structure schematic view of the outer piston cylinder in example 1.

[0017] Figure 7 is the structure schematic view of the inner piston sheet in example 1.

[0018] Figure 8 is the structure schematic view of the positioning ring in example 1.

[0019] Figure 9 is the structure schematic view of the second limiting ring in example 1.

[0020] Figure 10 is the front view of example 2.

[0021] Figure 11 is the front view of Example 3.

[0022] Figure 12 is the front view of Example 4. Embodiment

[0023] The application is further illustrated below in conjunction with the accompanying drawings and specific embodiments.

[0024] As shown in Figures 1-9 Example 1, the water channel square pipe 3, the replacement pipe 2, the O-shaped sealing ring 7 and the fastening end plate 1 are included.

[0025] The water channel square pipe 3 is provided with a plurality of through holes at its upper and lower ends respectively, the upper end of the replacement pipe 2 passes through the through hole at the upper end of the water channel square pipe 3, and the lower end passes through the through hole at the lower end of the water channel square pipe 3. The replacement pipe 2 is provided with an axial through hole at its center, and a plurality of liquid inlet holes are provided on the side wall of the replacement pipe 2 and communicate with the axial through hole, the liquid inlet holes being located in the cavity of the water channel square pipe.

[0026] The replacement pipe 2 is connected and sealed with the through hole at the upper end wall of the water channel square pipe 3 through the O-shaped sealing ring 7, the upper end of the replacement pipe 2 is provided with a plurality of annular slides, the annular slides are provided with the O-shaped sealing ring 7, and the upper end of the replacement pipe 2 is provided with external threads.

[0027] The lower end of the replacement pipe 2 is provided with external threads, the fastening end plate 1 is provided with a threaded blind hole, the threaded blind hole of the fastening end plate 1 is connected with the replacement pipe 2 through threads, and the fastening end plate 1 and the replacement pipe 2 are sealed through the O-shaped sealing ring 7.

[0028] The water channel square pipe 3 is made of 1Cr18Ni9Ti stainless steel material, and the water channel square pipe 3 is fixedly connected with the roller bearing seat 4 through the rib plate 5. A rectangular notch is provided on the lower end surface of the right end fastening end plate 1, so that a screwdriver can be used to screw it off from the replacement pipe 2.

[0029] The axial through hole of the replacement pipe 2 is provided with a piston device, the piston device includes an outer piston cylinder 26 and an inner piston sheet 28, the outer piston cylinder 26 is provided with a cavity with an open lower end, the inner piston sheet 28 is placed in the cavity of the outer piston cylinder 26, a center of an upper end plate of the outer piston cylinder 26 is provided with a through hole, a piston rod 8 passes through the through hole of the upper end plate of the outer piston cylinder 26 and is fixedly connected with the outer piston cylinder 26, the outer piston cylinder 26 is provided with a fixing ring at the open lower end, and the inner piston sheet 28 and the fixing ring are connected through a first tension spring 32.

[0030] The upper end wall of the outer piston cylinder 26 is provided with a plurality of long strip-shaped through holes arranged in a circle and uniformly, the inner piston sheet 28 is provided with a plurality of long strip-shaped through holes arranged in a circle and uniformly, the long strip-shaped through holes on the upper end wall of the outer piston cylinder 26 and the long strip-shaped through holes on the inner piston sheet 28 are staggered, and when the inner piston sheet 28 is tightly attached to the lower end of the upper end wall of the outer piston cylinder 26, the long strip-shaped through holes can be shielded from each other.

[0031] The lower end of the inner piston sheet 28 is provided with a flange 29, the flange 29 is provided with a through hole, and the piston rod 8 passes through the through hole of the flange 29. The upper end of the piston rod 8 is provided with a stepped blind hole, the upper end of the stepped blind hole is a small-diameter hole, the lower end is a large-diameter hole, a partition plate 33 is arranged in the large-diameter hole to divide the large-diameter hole into two parts, the partition plate 33 is provided with a through hole coaxial with the small-diameter hole. The upper end of the first guide rod 34 is connected with the positioning ring 27, the first guide rod 34 is provided with a shaft ring above the large-diameter hole partition plate 33, the first guide rod 34 is sleeved with the first compression spring 31, the upper end of the first compression spring 31 is connected with the shaft ring, and the lower end is connected with the partition plate 33. The lower half of the large-diameter hole formed by the partition plate 33 is provided with a positioning block 35, the positioning block 35 is in the shape of a truncated cone, and the small-diameter end of the positioning block 35 is connected with the lower end of the first guide rod 34.

[0032] The inner wall of the through hole of the flange 29 is provided with a plurality of positioning blind holes arranged in a circle and uniformly, the positioning blind holes are arranged at a certain angle with the axis of the flange 29, and the hole bottom of the positioning blind hole is higher than the hole opening. The lower half of the large-diameter hole of the piston rod 8 is provided with a plurality of guide through holes arranged in a circle and uniformly, the guide through holes are arranged at the same angle as the positioning blind holes, the guide through holes are provided with a positioning pin 30, the outer end of the positioning pin 30 is on the inner wall of the through hole of the flange 29, and the inner end is on the side surface of the positioning block 35. In the optimization scheme, the positioning block 35 and the positioning pin 30 are made of magnetic material, so that the positioning block 35 and the positioning pin 30 can attract each other.

[0033] The inner wall of the axial through hole of the replacement tube 2 is respectively provided with a first limiting ring 10 and a second limiting ring 11, the first limiting ring 10 is located above the second limiting ring 11, the piston device is located between the first limiting ring 10 and the second limiting ring 11, the outer side of the piston rod 8 is sleeved with a third compression spring 9, the upper end of the third compression spring 9 is connected with the piston device, and the lower end is connected with the second limiting ring 11, and the positioning ring 27 is pressed on the first limiting ring 10 by the third compression spring 9.

[0034] The lower end of the water channel square tube 3 is provided with a shell 6, the left end of the fastening end plate 1 is provided with a guide hole, the lower end of the piston rod 8 is fixedly connected with the upper end of the double-sided ratchet 19 through the guide hole of the left end of the fastening end plate 1, and a sealing ring is arranged between the piston rod 8 and the guide hole of the left end of the fastening end plate 1; both ends of the double-sided ratchet 19 are provided with ratchet teeth, the outer side of the shell 6 is respectively provided with a lever plate 15, the lever plate 15 is hingedly connected with the shell 6, and the length from the right end of the lever plate 15 to the hinged position is less than the length from the left end of the lever plate 15 to the hinged position. The right end of the lever plate 15 is provided with a connecting shaft 18, the outer side wall of the shell 6 is provided with an arc-shaped through hole, the connecting shaft 18 is connected with a pawl 50 through the arc-shaped through hole of the shell 6, the right end of the lever plate 15 is rotationally connected with the connecting shaft 18, the rotational connection mode is that the right end of the lever plate 15 is provided with a through hole, the outer ring of a bearing is fixedly connected in the through hole of the lever plate 15, the inner ring of the bearing is fixedly connected with the connecting shaft 18, the connecting shaft 18 is provided with a shaft ring, the shaft ring of the connecting shaft 18 is provided with a circular-arc-shaped sliding block 49, the right end of the lever plate 15 is provided with a circular-arc-shaped sliding groove, the circular-arc-shaped sliding block 49 is placed in the circular-arc-shaped sliding groove, one end of the circular-arc-shaped sliding block 49 is connected with the wall of one end of the circular-arc-shaped sliding groove through a fifth compression spring 40, so that the circular-arc-shaped sliding block 49 is pressed against the wall of the other end of the circular-arc-shaped sliding groove, and the pawl 50 is placed in the cavity of the shell 6. In the rotating process of the lever plate 15, the pawl 50 is driven to move by the connecting shaft 18, and the pawl 50 can drive the double-sided ratchet 19 to move downward. When the lever plate 15 is reset in the reverse direction, the pawl 50 touches the left end ratchet teeth of the double-sided ratchet 19, the pawl 50 drives the connecting shaft 18 to rotate, the fifth compression spring 40 is compressed, so that the pawl 50 and the double-sided ratchet 19 do not interfere with each other, and the lever plate 15 can be reset.

[0035] Both sides of the double-sided ratchet 19 are respectively provided with a sliding groove, and both sides of the shell 6 are provided with a sliding block.

[0036] The left end of the lever plate 15 is provided with a rectangular guide hole, the water channel square pipe 3 is provided with a water wheel 17, the lower end of the water wheel 17 is located at the liquid inlet hole of the replacement pipe 2, the upper wall of the water channel square pipe 3 is fixedly provided with a protective shell 51, the protective shell 51 is provided with a cavity with an open lower end, the protective shell 51 covers the upper half of the water wheel 17, so that the upper half of the water wheel 17 is prevented from being impacted by water flow and unable to rotate. The central hole of the water wheel 17 is fixedly connected with a rotating shaft, the outer side wall of the water channel square pipe 3 is provided with a through hole, the outer end of the rotating shaft passes through the through hole in the outer side wall of the water channel square pipe 3 and is connected with the gear hole of the driving gear 12, a sealing ring is arranged between the rotating shaft and the through hole in the outer side wall of the water channel square pipe 3, the inner end is rotationally connected with the inner side wall of the water channel square pipe 3, and the rotationally connected manner is that; the inner side wall of the water channel square pipe 3 is provided with a blind hole, a waterproof bearing is arranged in the blind hole, the outer ring of the waterproof bearing is fixedly connected with the outer wall of the blind hole, and the rotating shaft is fixedly connected with the inner ring of the waterproof bearing.

[0037] The outer wall of the shell 6 is rotationally connected with the first driven gear 13, and the rotationally connected manner is that; the outer wall of the shell 6 is provided with a rotating shaft, the gear hole of the first driven gear 13 is fixedly connected with the outer ring of the bearing, and the rotating shaft is fixedly connected with the inner ring of the bearing. The driving gear 12 is engaged with the first driven gear 13, the first driven gear 13 is coaxially connected with the rotating wheel 14, the rotating wheel 14 is provided with a guide pin shaft 16, and the guide pin shaft 16 is placed in the rectangular guide hole of the lever plate 15.

[0038] The cavity in the shell 6 is provided with a supporting plate 36, the supporting plate 36 is provided with a guide through hole, the right end of the second guide rod 24 passes through the guide through hole in the supporting plate 36, the left end is connected with the positioning plate 22, the left end of the positioning plate 22 is provided with an inclined surface, the inclined surface of the positioning plate 22 is located on the inclined surface of the teeth on the right side of the double-sided ratchet 19, when the double-sided ratchet 19 moves downward, the positioning plate 22 is inserted into the tooth groove, so that the double-sided ratchet 19 is prevented from moving upward at will. The second compression spring 23 is sleeved on the second guide rod 24, the left end of the second compression spring 23 is connected with the positioning plate 22, and the right end is connected with the supporting plate 36. The right end of the second guide rod 24 is provided with a positioning groove, the two inner side walls of the shell 6 are respectively hinged with the inflection points of a V-shaped plate 21, the right ends of the two V-shaped plates 21 are connected through a positioning shaft; the positions close to the lower end of the double-sided ratchet 19 are respectively provided with a top plate 20, the left end of the V-shaped plate 21 is placed on the top plate 20, the right end of the V-shaped plate 21 is provided with a pin shaft, the inner side wall of the shell 6 is provided with a pin shaft, and the two pin shafts are connected through a second stretching spring 25, so that the left end of the V-shaped plate 21 is pressed on the top plate 20.

[0039] The uppermost end of the double-sided ratchet 19 is wider than the lower end, which can make the positioning plate 22 move a longer distance. The lower end of the shell 6 is provided with a through hole, and the double-sided ratchet 19 can pass through the through hole of the lower end of the shell 6 during downward movement.

[0040] The operation process is as follows: when using the device, the two waterway square pipes 3 are fixed on both sides of the fan-shaped segment body, the lower end hole of the internal cooling waterway of the roller bearing seat 4 is changed into an internal thread hole matched with the external thread of the upper end of the replacement pipe 2, the replacement pipe 2 is inserted into the lower end threaded hole of the internal cooling waterway of the roller bearing seat 4 and is screwed, when the water flow drives the water wheel 17 to rotate, the water wheel 17 drives the driving gear 12 to rotate, the driving gear 12 drives the first driven gear 13 to rotate, the first driven gear 13 drives the rotating wheel 14 to rotate, the rotating wheel 14 drives the lever plate 15 to reciprocate through the guide pin shaft 16, the connecting shaft 18 drives the pawl 50 to move the ratchet teeth at the left end of the double-sided ratchet 19, and the double-sided ratchet 19 moves downward, so that the piston rod 8 drives the piston device to compress the third compression spring 9, when the flange 29 of the inner piston piece 28 of the piston device moves to the position of the second limiting ring 11, the flange 29 drives the inner piston piece 28 to move upward, when the inner piston piece 28 is tightly attached to the lower end wall of the upper end of the outer piston cylinder 26, the long strip-shaped through hole is blocked by each other, at this time, the guide through hole is communicated with the positioning blind hole, the positioning block 35 moves upward due to the action of the first compression spring 31, the positioning pin shaft 30 is inserted into the positioning blind hole, so as to fix the inner piston piece 28, when the ratchet teeth at the uppermost end of the double-sided ratchet 19 push the positioning groove of the second guide rod 24 to the position of the positioning shaft, the positioning shaft enters the positioning groove of the second guide rod 24 due to the action of the second tension spring 25, so as to fix the second guide rod 24, so that the positioning plate 22 cannot prevent the double-sided ratchet 19 from rebounding again, therefore, the third compression spring 9 is quickly reset, the piston device generates a certain pressure on the water flow, the water pressure is increased, so as to be able to flush the cooling waterway of the bearing seat and flush out impurities from the cooling waterway. When the positioning ring 27 of the piston device moves to the position of the first limiting ring 10, the first limiting ring 10 extrudes the positioning ring 27 downward, so that the first guide rod 34 drives the positioning block 35 to move downward, at this time, the positioning pin shaft 30 slides out of the positioning blind hole of the flange 29, the inner piston piece 28 is reset due to the action of the first tension spring 32, so as to make the water flow flow again, when the top plate 20 on the ratchet pushes the left end of the V-shaped plate 21 upward, the right end of the V-shaped plate 21 moves downward, so that the positioning shaft leaves the positioning groove of the second guide rod 24, and the positioning plate 22 is repositioned at the right end of the double-sided ratchet 19.

[0041] In example 1, the double-sided ratchet 19 may touch the pawl 50 at the right end of the lever plate 15 during rebounding and resetting, thereby affecting the rebounding speed of the piston device. Therefore, in example 2, the pawl 50 is replaced by a pawl 50' as shown in the figure. Figure 10As shown, the outer side of the shell 6 is respectively connected with the transmission gear 39 and the second driven gear 38 through shaft rotation, the transmission gear 39 is coaxially connected with the half gear 37, the transmission gear 39 is engaged with the driving gear 12, the half gear 37 can be engaged with the second driven gear 38 in the rotation process, and the second driven gear 38 is coaxially connected with the rotating wheel 14. The half gear 37 is an incomplete gear, the number of teeth of the half gear 37 is half of that of a complete gear, the diameter of the half gear 37 is the same as that of the second driven gear 38, when the half gear 37 rotates one circle, the second driven gear 38 rotates half a circle, thereby prolonging the swing interval time of the lever plate 15, so that the double-sided ratchet 19 can avoid colliding with the pawl 50 in the reset process.

[0042] In example 1, the water wheel 17 drives the driving gear 12 and the first driven gear 13 in turn, the movement interval time of the piston device is long, when the replacement pipe is blocked, the impurities in the replacement pipe 2 cannot be flushed out due to the long movement interval time of the piston device. Figure 11 As shown, the lower end of the double-sided ratchet 19 passes through the through hole in the lower end of the shell 6 and is connected with the upper end of the first connecting plate 41, the lower end of the first connecting plate 41 is connected with the handle 42, the non-circular center of the rotating wheel 14 is provided with a threaded hole, one end of the guide pin shaft 16 is provided with external threads, and the guide pin shaft 16 is threadedly connected with the threaded hole of the rotating wheel 14. When it is needed to manually pull down the double-sided ratchet 19, the guide pin shaft 16 is unscrewed from the rotating wheel 14, the pawl 50 at the right end of the lever plate 15 is abutted against the upper end of the arc-shaped through hole of the shell 6, the handle 42 is manually pulled to pull down the double-sided ratchet 19, the third compression spring 9 is compressed, the handle 42 is released to make the piston device quickly rise, and the cooling water channel of the bearing seat 4 can be quickly flushed by quickly pulling the handle 42, so that the impurities can be cleaned.

[0043] As shown, the lower end of the double-sided ratchet 19 passes through the through hole in the lower end of the shell 6 and is connected with the upper end of the first connecting plate 41, the lower end of the first connecting plate 41 is connected with the handle 42, the non-circular center of the rotating wheel 14 is provided with a threaded hole, one end of the guide pin shaft 16 is provided with external threads, and the guide pin shaft 16 is threadedly connected with the threaded hole of the rotating wheel 14. When it is needed to manually pull down the double-sided ratchet 19, the guide pin shaft 16 is unscrewed from the rotating wheel 14, the pawl 50 at the right end of the lever plate 15 is abutted against the upper end of the arc-shaped through hole of the shell 6, the handle 42 is manually pulled to pull down the double-sided ratchet 19, the third compression spring 9 is compressed, the handle 42 is released to make the piston device quickly rise, and the cooling water channel of the bearing seat 4 can be quickly flushed by quickly pulling the handle 42, so that the impurities can be cleaned. Figure 12As shown, the effect of example 4 is the same as example 2, but in example 4, a fourth compression spring 45 is added, which can increase the resilience of the piston device, so that the water flow pressure generated by the resilience of the piston device is larger, and the effect of cleaning impurities is more obvious. The outer side wall of the shell 6 is provided with a guide cylinder 46, the guide cylinder 46 is provided with a guide through hole, the lower end of the guide shaft 44 passes through the guide through hole of the guide cylinder 46, the lower end of the guide shaft 44 is provided with a threaded hole, the upper end is connected with the pressing plate 43, the outer side of the guide shaft 44 is sleeved with the fourth compression spring 45, the upper end of the fourth compression spring 45 is connected with the pressing plate 43, and the lower end is connected with the upper end of the guide cylinder 46, the lower end of the double-sided ratchet 19 passes through the through hole at the lower end of the shell 6 and is connected with the upper end of the second connecting plate 47, the second connecting plate 47 is provided with a threaded hole. When it is necessary to manually press the double-sided ratchet 19, the guide shaft 44 and the threaded hole of the second connecting plate 47 are connected together by using a connecting bolt 48, the pressing plate 43 is pressed downward, the fourth compression spring 45 is compressed by the pressing plate 43, the double-sided ratchet 19 is driven to move downward by the guide shaft 44, and after the hand is released, because the piston device is subjected to the double resilience of the third compression spring 8 and the fourth compression spring 45, the water pressure generated is larger.

[0044] It should be noted that the specific embodiments of the present application have been described in detail, and various obvious changes made by those skilled in the art without departing from the spirit and scope of the present application are within the protection scope of the present application.

Claims

1. A fan-shaped water channel for preventing blockage in a continuous casting machine, characterized in that: The utility model provides a water channel square pipe, replacement pipe, O -ring seal and the end plate of fastening, water channel square pipe upper and lower two ends respectively are equipped with a plurality of through -hole, replacement pipe's upper end passes through the through -hole of water channel square pipe upper end, lower end passes through the through -hole of water channel square pipe lower end, replacement pipe axial through -hole is equipped with a plurality of liquid inlet hole with axial through -hole intercommunication of replacement pipe's side wall, liquid inlet hole is located in the cavity of water channel square pipe, replacement pipe's upper end is equipped with outer thread, replacement pipe's lower end is equipped with outer thread, the end plate of fastening is equipped with a threaded blind hole, the threaded blind hole of end plate of fastening is connected through the thread with replacement pipe, the end plate of fastening is sealed with replacement pipe between and is equipped with O -ring seal, replacement pipe's axial through -hole is equipped with piston device, piston device includes outer piston cylinder and inner piston sheet, outer piston cylinder is equipped with a lower end opening cavity, inner piston sheet is placed in the cavity of outer piston cylinder, the center of outer piston cylinder upper end plate is equipped with a through -hole, piston rod passes through the through -hole of outer piston cylinder upper end plate and is fixedly connected with outer piston cylinder, outer piston cylinder lower end opening is equipped with fixed ring, inner piston sheet is connected through the first tensile spring between with fixed ring, outer piston cylinder upper end wall is equipped with a plurality of circumferential shape even arrangement long strip through -hole, inner piston sheet is equipped with a plurality of circumferential shape even arrangement long strip through -hole, long strip through -hole of outer piston cylinder upper end wall and long strip through -hole on inner piston sheet are staggered distribution, inner piston sheet's lower end is equipped with a flange, the flange is equipped with a through -hole, piston rod passes through the through -hole of flange, the upper end of piston rod is equipped with a blind hole of ladder type, the upper end of blind hole of ladder type is small diameter hole, and the lower end is large diameter hole, a partition is equipped in the large diameter hole, and the large diameter hole is divided into two parts, the partition is equipped with a through -hole, and the through -hole of the partition is coaxial with the small diameter hole, the upper end of first guide rod is connected with positioning ring, first guide rod is equipped with a shaft ring above the large diameter hole partition, first guide rod outside is equipped with the first compression spring, the upper end of first compression spring is connected with shaft ring, and the lower end is connected with partition, the lower half formed by the partition and large diameter hole is equipped with positioning block, the positioning block is in the shape of a truncated cone, the small diameter end of positioning block is connected with the lower end of first guide rod, the inner wall of flange through -hole is equipped with a plurality of circumferential shape even distribution positioning blind hole, the positioning blind hole is arranged at a certain angle with the axis of flange, and the hole bottom of positioning blind hole is higher than the hole opening, the lower half of large diameter hole of piston rod is equipped with a plurality of circumferential shape even distribution guide through -hole, the setting angle of guide through -hole is same with positioning blind hole, guide through -hole is equipped with positioning pin shaft, the outer end of positioning pin shaft is on the inner wall of flange through -hole, and the inner end is on the side of positioning block.The inner wall of the axial through hole of the replacement pipe is respectively provided with a first limiting ring and a second limiting ring, the first limiting ring is located above the second limiting ring, the piston device is located between the first limiting ring and the second limiting ring, the outer side of the piston rod is sleeved with a third compression spring, the upper end of the third compression spring is connected with the piston device, the lower end is connected with the second limiting ring, and the positioning ring is pressed on the first limiting ring by the third compression spring; the lower end of the water channel square pipe is provided with a shell, the left end of the fastening end plate is provided with a guide hole, the lower end of the piston rod is fixedly connected with the upper end of the double-sided ratchet through the guide hole of the left end of the fastening end plate, and a sealing ring is arranged between the piston rod and the guide hole of the left end of the fastening end plate; both ends of the double-sided ratchet are provided with ratchet teeth, the outer side of the shell is respectively provided with a lever plate, and the lever plate is hinged to the shell; the right end of the lever plate is provided with a connecting shaft, the outer side wall of the shell is provided with an arc-shaped through hole, the connecting shaft is connected with the pawl through the arc-shaped through hole of the shell, the right end of the lever plate is rotationally connected with the connecting shaft, the connecting shaft is provided with a shaft ring, the shaft ring of the connecting shaft is provided with a circular-arc-shaped sliding block, the right end of the lever plate is provided with a circular-arc-shaped sliding groove, the circular-arc-shaped sliding block is placed in the circular-arc-shaped sliding groove, one end of the circular-arc-shaped sliding block and the wall of one end of the circular-arc-shaped sliding groove are connected through a fifth compression spring, and the pawl is placed in the cavity of the shell; both sides of the double-sided ratchet are respectively provided with a sliding groove, both sides of the shell are provided with a sliding block, and the sliding block is placed in the sliding groove of the double-sided ratchet; the left end of the lever plate is provided with a rectangular guide hole, a water wheel is installed in the water channel square pipe, a protection shell is fixedly installed on the upper wall of the water channel square pipe, the protection shell is provided with a cavity with an open lower end, and the protection shell covers the upper half of the water wheel; the central hole of the water wheel is fixedly connected with a rotating shaft, one end of the rotating shaft is connected with the gear hole of the driving gear through the through hole on the outer side wall of the water channel square pipe, and the other end is rotationally connected with the inner side wall of the water channel square pipe; the outer side of the shell is rotationally connected with a transmission gear and a second driven gear through a shaft, the transmission gear is coaxially connected with a half gear, the transmission gear is engaged with the driving gear, the half gear can be engaged with the second driven gear in the rotating process, and the second driven gear is coaxially connected with a rotating wheel; the rotating wheel is provided with a guide pin shaft, and the guide pin shaft is placed in the rectangular guide hole of the lever plate.The cavity of the shell is provided with a support plate, the support plate is provided with a guide through hole, the right end of the second guide rod passes through the guide through hole on the support plate, the left end is connected with the positioning plate, the left end of the positioning plate is provided with an inclined surface, the inclined surface of the positioning plate is placed on the inclined surface of the tooth on the right side of the double-sided ratchet, the second guide rod is provided with a second compression spring, the left end of the second compression spring is connected with the positioning plate, the right end is connected with the support plate, the right end of the second guide rod is provided with a positioning groove, the two inner side walls of the shell are respectively hinged with the inflection points of a V-shaped plate, the right ends of the two V-shaped plates are connected through a positioning shaft; the double-sided ratchet is provided with a top plate on both sides near the lower end, the left end of the V-shaped plate is placed on the top plate, the right end of the V-shaped plate is provided with a pin shaft, the inner side wall of the shell is provided with a pin shaft, and the two pin shafts are connected through a second stretching spring, so that the left end of the V-shaped plate is pressed on the top plate; the tooth at the uppermost end of the right end of the double-sided ratchet is wider than the tooth at the lower end, and the lower end of the shell is provided with a through hole.

2. A clogging prevention segmental channel for a continuous casting machine according to claim 1, characterized in that: The replacement pipe is connected and sealed with the through hole of the upper end wall of the water channel square pipe through an O-shaped sealing ring, and the upper end of the replacement pipe is provided with a plurality of annular slides, and the annular slides are provided with O-shaped sealing rings.

3. The anti-clogging segmental channel of a continuous caster according to claim 1, characterized in that: The lower end surface of the right end fixed end plate is provided with a rectangular notch.

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