An integral knife seat with L-shaped connection structure

Abstract

The present invention relates to the technical field of hydraulic shears, and discloses an integral tool holder with an L-shaped connection structure, comprising a hanging plate, the bottom end of the hanging plate is fixedly connected to a main frame, the side of the main frame is fixedly connected to a feed port, the bottom end of the main frame is fixedly connected to a hydraulic cylinder, the middle part of the top end of the hydraulic cylinder is fixedly connected to a push rod, the top end of the push rod is fixedly connected to a connecting tool holder, and the top end of the push rod is set to be "L"-shaped; the present invention adopts an "L"-shaped connection structure of a specific size between the connecting tool holder and the push rod by providing a push rod, a connecting tool holder, a lower blade, and a fixing bolt, and the "L"-shaped connection can better ensure the stability of the connection between the cylinder and the tool holder under high impact, and the force stability during the shearing process is increased. At the same time, because the new structure is simpler and stronger than the traditional tool holder, the service life of the cylinder will be greatly improved, and the cross-sectional quality of the sheared steel billet will also be better.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic shears, and more particularly to an integral cutter seat with an L-shaped connection structure. Background Art

[0002] Steel production is generally continuous casting, which requires that billets be cut to a fixed length when they come off the production line, and the cut ends must be square and not deformed. Therefore, hydraulic shears are generally used. Hydraulic shears for continuous casting billets are mainly suitable for online synchronous shearing of billets in continuous casting machines in the metallurgical industry. The main feature of this equipment is that it is faster and more convenient than traditional flame cutting, which is mainly reflected in the energy saving and consumption reduction of enterprises, saving gas consumption, cutting consumption, labor and billet oxide scale loss.

[0003] When the hydraulic shearing equipment for continuous casting steel billets is used, the billet is pushed between the upper and lower cutting edges of the hydraulic shear. The hydraulic shear is connected to the cylinder through the knife holder. The hydraulic oil circulating in the cylinder provides the shearing power, and the knife holder fixes the blade of the hydraulic shear to maintain its stability. Traditional hydraulic shear holders have the following problems:

[0004] 1. The blade holder on the currently commonly used billet hydraulic shear is relatively independent of the frame and adopts a multi-stage flange connection method installed on the oil cylinder. Adjustment pads need to be added in multiple places to compensate for the cumulative errors caused by manufacturing and installation. Because hydraulic shears are in high temperature areas for a long time and require high shearing force, the shear blade gap will increase after a period of use, and the overall stability will deteriorate. The life of the hydraulic shear blade is relatively short. When the blade is damaged, it will seriously affect the shearing quality.

[0005] Second, since the tool holder on the billet hydraulic shear is relatively independent of the frame, it cannot have a corresponding cooling pipe. When used in a high-temperature working environment, in order to ensure the normal operation of the equipment, cooling must be performed. Therefore, in order to reduce the cooling effect, the tool holder needs to be designed with a separate cooling water channel, which increases the working cost. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the implementation regulations of the present invention provide an integral tool holder with an L-shaped connection structure. The technical problem to be solved by the present invention is that the connection between the tool holder and the oil cylinder of the hydraulic shear is prone to errors and the tool holder is difficult to cool.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an integral knife block with an L-shaped connection structure, comprising a hanging plate, the bottom end of the hanging plate is fixedly connected to a main frame, the side of the main frame is fixedly connected to a feed port, the bottom end of the main frame is fixedly connected to a hydraulic cylinder, the middle part of the top end of the hydraulic cylinder is fixedly connected to a push rod, the top end of the push rod is fixedly connected to a connecting knife block, the top end of the side of the connecting knife block is fixedly connected to a lower blade, the bottom end of the hydraulic cylinder is fixedly connected to a cooling mechanism, the top end of the push rod is provided with a avoidance groove, the top end of the push rod is set to be "L"-shaped, the bottom end of the connecting knife block is provided with a avoidance groove adapted to the avoidance groove of the push rod, and the intersection structure of the connecting knife block and the push rod is "L"-shaped;

[0008] The side of the connecting tool seat is fixedly connected to a connecting rod, the bottom end of the connecting rod is fixedly connected to a connecting rack, the side of the connecting rack is movably engaged with a synchronous gear, the interior of the synchronous gear is fixedly connected to a gear shaft, the side of the gear shaft is movably engaged with a large bevel gear, the side of the large bevel gear is movably engaged with a small bevel gear, the side of the small bevel gear is fixedly connected to a rotating shaft, the side of the rotating shaft is fixedly connected to a cooling fan, both sides of the gear shaft are movably connected to a fixed plate, and the other side of the fixed plate is fixedly connected to the side of the hydraulic cylinder.

[0009] In a preferred embodiment, a bolt hole is provided at the bottom end of the ejector rod avoidance groove, and a corresponding bolt hole is provided at the bottom end of the connecting knife seat near the side of the lower blade, and corresponding bolt holes are provided on the side of the ejector rod avoidance groove and the side of the connecting knife seat, and fixing bolts are fixedly connected in the bolt holes of the connecting knife seat and the ejector rod.

[0010] In a preferred embodiment, the width of the avoidance groove at the top of the ejection rod is the same as the diameter of the top of the ejection rod, and the height of the avoidance groove of the ejection rod is the same as its width, and the bottom end of the connecting knife seat is completely fitted with the top of the ejection rod.

[0011] In a preferred embodiment, the sides and interior of the main frame are provided with sliding grooves adapted to the connecting rods, and a distance of two centimeters is left between the bottom end of the upper connecting rod and the bottom plane of the main frame.

[0012] In a preferred embodiment, the diameter of the meshing portion of the large bevel gear and the small bevel gear is twice the diameter of the synchronous gear, and the ratio of the diameters of the large bevel gear and the small bevel gear is two to one.

[0013] In a preferred embodiment, the bottom end of the connecting rod is provided with an avoidance hole adapted to the limiting rod, the side of the limiting rod is fixedly connected to a connecting plate, and the other side of the connecting plate is fixedly connected to the side of the fixing plate.

[0014] In a preferred embodiment, the bottom end of the rotating shaft is movably connected to a support plate, the side of the support plate away from the rotating shaft is fixedly connected to the side of the hydraulic cylinder, the inner side of the support plate is fixedly connected to a limiting groove, the inside of the limiting groove is movably connected to a rotating ring, and the inner side of the rotating ring is fixedly connected to the side of the cooling fan.

[0015] In a preferred embodiment, the blades in the cooling fan are movably connected to the support body, and the swinging direction of the blades changes with the rotation direction of the support body.

[0016] Technical effects and advantages of the present invention:

[0017] 1. The present invention is provided with an ejector rod, a connecting knife holder, a lower blade, and a fixing bolt, and an "L"-shaped connection structure of a specific size is adopted between the connecting knife holder and the ejector rod. The "L"-shaped connection can better ensure the stability of the connection between the oil cylinder and the knife holder under high impact, and the force stability during the shearing process is increased. At the same time, because the new structure is simpler and stronger than the traditional knife holder, the service life of the oil cylinder will be greatly extended, and the cross-sectional quality of the sheared steel billet will also be improved;

[0018] 2. The present invention is provided with a connecting rod, a connecting rack, a synchronous gear, and a cooling fan. When the hydraulic shears shear the steel billet, the connecting knife seat moves upward as a whole. When the connecting knife seat moves upward, it will drive the connecting rod to move upward. The upward movement of the connecting rod will drive the connecting rack to move upward. When the connecting rack moves upward, the synchronous gear will rotate with the movement of the connecting rack. When the synchronous gear rotates, the transmission between the gear shaft and the large bevel gear drives the small bevel gear to rotate, thereby causing the cooling fan to rotate. The gas generated when the cooling fan rotates will blow the hot air from the steel billet upward, thereby reducing the overall temperature of the equipment and improving the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the tool holder structure of the present invention.

[0021] Figure 3 It is a side view of the tool holder structure of the present invention.

[0022] Figure 4 It is an overall schematic diagram of the cooling mechanism of the present invention.

[0023] Figure 5 It is a schematic diagram of the power structure of the cooling mechanism of the present invention.

[0024] Figure 6 It is a schematic diagram of the cooling structure of the cooling mechanism of the present invention.

[0025] Figure 7 This is a schematic diagram of the cooling fan's front and rear reversing structure of the present invention.

[0026] The accompanying drawings are marked as follows: 1. Hanging plate; 2. Main frame; 3. Feed port; 4. Hydraulic cylinder; 5. Cooling mechanism; 501. Connecting rod; 502. Connecting rack; 503. Synchronous gear; 504. Gear shaft; 505. Large bevel gear; 506. Cooling fan; 507. Fixed plate; 508. Connecting plate; 509. Limiting rod; 510. Small bevel gear; 511. Rotating shaft; 512. Support plate; 513. Rotating ring; 514. Limiting groove; 6. Connecting knife seat; 7. Lower blade; 8. Fixing bolt; 9. Ejection rod. DETAILED DESCRIPTION

[0027] The technical solutions of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The integral tool holder with an L-shaped connection structure involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work fall within the scope of protection of the present invention.

[0028] Reference Figure 1 、 Figure 2 、 Figure 3The present invention provides an integral tool holder with an L-shaped connection structure, comprising a hanging plate 1, the bottom end of the hanging plate 1 is fixedly connected to a main frame 2, the side of the main frame 2 is fixedly connected to a feed port 3, the bottom end of the main frame 2 is fixedly connected to a hydraulic cylinder 4, the middle part of the top of the hydraulic cylinder 4 is fixedly connected to a push rod 9, the top of the push rod 9 is fixedly connected to a connecting tool holder 6, the top of the side of the connecting tool holder 6 is fixedly connected to a lower blade 7, and the bottom end of the hydraulic cylinder 4 is fixedly connected to a cooling mechanism 5. The top of the ejection rod 9 is provided with an avoidance groove, and the top of the ejection rod 9 is set to "L" shape. The bottom end of the connecting knife seat 6 is provided with a avoidance groove adapted to the avoidance groove of the ejection rod 9, and the intersection structure of the connecting knife seat 6 and the ejection rod 9 is "L"-shaped. A bolt hole is provided at the bottom end of the avoidance groove of the ejection rod 9, and a bolt hole corresponding to it is provided at the bottom end of the connecting knife seat 6 near the side of the lower blade 7. Corresponding bolt holes are provided on the side of the avoidance groove of the ejection rod 9 and the side of the connecting knife seat 6. The bolt holes of the connecting knife seat 6 and the ejection rod 9 are fixedly connected with fixing bolts 8. The width of the avoidance groove at the top of the ejection rod 9 is the same as the diameter width of the top of the ejection rod 9, and the height of the avoidance groove of the ejection rod 9 is the same as its width. The bottom end of the connecting knife seat 6 is completely fitted with the top of the ejection rod 9.

[0029] The L-shaped connection between the tool holder 6 and the ejection rod 9 is formed into an L-shape, and the tool holder 6 and the ejection rod 9 are fixed by fixing bolts 8, and the fixing bolts 8 fix the bottom end and the side of the ejection rod 9 respectively, and fix them in two directions. The fixing effect is better, and the problem of adding adjustment pads in multiple places to compensate for the cumulative errors caused by manufacturing and installation in traditional flange connections can be avoided, thereby improving the stability after connection, and the cross-sectional quality during billet shearing will also be better, and the service life of the cylinder will be greatly improved. Since it is an L-shaped connection, it cannot move in one direction when it is not fixed in any way, and it can be combined with the force conditions during shearing, so only one bolt at the bottom and two bolts on the side are used for fixing, which improves stability while saving materials. In addition, it should be noted that the use of three bolts for connection is the minimum fixing requirement, and this application can be adjusted according to actual production and the size of the billet.

[0030] Reference Figure 4 、 Figure 5 、 Figure 6The side of the connecting tool holder 6 is fixedly connected with a connecting rod 501, and the bottom end of the connecting rod 501 is fixedly connected to the connecting rack 502. A sliding groove compatible with the connecting rod 501 is provided on the side and inside of the main frame 2. The bottom end of the upper connecting rod 501 is two centimeters away from the bottom plane of the main frame 2. The side of the connecting rack 502 is movably engaged with a synchronous gear 503, and the interior of the synchronous gear 503 is fixedly connected to a gear shaft 504. The side of the gear shaft 504 is movably engaged with a large bevel gear 505, and the side of the large bevel gear 505 is movably engaged with a small bevel gear 510. The side of the small bevel gear 510 is fixedly connected to a rotating shaft 511, and the side of the rotating shaft 511 is fixedly connected to a cooling fan 506. The two sides of the gear shaft 504 are movably connected to a fixed plate 507, and the other side of the fixed plate 507 is fixedly connected to the side of the hydraulic cylinder 4. The diameter of the meshing point between the large bevel gear 505 and the small bevel gear 510 is twice the diameter of the synchronous gear 503, and the diameter ratio of the large bevel gear 505 and the small bevel gear 510 is two to one. The bottom end of the connecting rod 501 is provided with a avoidance hole adapted to the limit rod 509, and the side of the limit rod 509 is fixedly connected to a connecting plate 508, and the other side of the connecting plate 508 is fixedly connected to the side of the fixed plate 507.

[0031] When the connecting rod 501 moves up and down, it will drive the connecting rod 501 to move up and down. There is a certain distance between the bottom end of the upper connecting rod 501 and the bottom end plane of the main frame 2 to prevent them from contacting and being damaged. When the connecting rod 501 moves up and down, it can be limited and supported by the limit rod 509 to keep it more stable when moving. The connecting rod 501 synchronously drives the connecting rack 502 to move. When the connecting rack 502 moves, it can drive the synchronous gear 503 to rotate. The synchronous gear 503 rotates through the gear shaft 504 to drive the large bevel gear 505 to rotate. When the synchronous gear 503 reaches the large bevel gear 505, the diameter of the rotation increases. When the large bevel gear 505 drives the small bevel gear 510 to rotate, the rotation of the small bevel gear 510 is increased, so that the small bevel gear 510 accelerates the rotation of the cooling fan 506 through the rotating shaft 511. The cooling fan 506 The gas generated during rotation blows the hot air of the steel billet upward, thereby reducing the overall temperature of the equipment. The temperature of the hydraulic cylinder 4 is not easy to rise, which improves the cooling effect of the equipment, thereby increasing the single working time and overall service life of the hydraulic cylinder 4.

[0032] Reference Figure 6 and Figure 7The bottom end of the rotating shaft 511 is movably connected to a support plate 512, and the side of the support plate 512 away from the rotating shaft 511 is fixedly connected to the side of the hydraulic cylinder 4. The inner side of the support plate 512 is fixedly connected to a limiting groove 514, and the inside of the limiting groove 514 is movably connected to a rotating ring 513. The inner side of the rotating ring 513 is fixedly connected to the side of the cooling fan 506. The blades in the cooling fan 506 are movably connected to the support body, and the swinging direction of the blades changes with the rotation direction of the support body.

[0033] In the embodiment of the present application, when the cooling fan 506 rotates, the rotating ring 513 slides on the inner side of the limiting groove 514, thereby stabilizing the cooling fan 506 to prevent it from shaking during rotation. The support plate 512 can support the rotating shaft 511 so that it can fix the position of the cooling fan 506. Since the connecting rod 501 moves up and down, the cooling fan 506 will have two different rotation directions when the connecting rod 501 moves up and down. Therefore, the blades in the cooling fan 506 can move. When the rotation direction is different, the blade angle is as follows: Figure 7 As shown, the blades of the cooling fan 506 always maintain an inclined surface to supply air, thereby preventing hot air from being sucked downwards and increasing the possibility of high-temperature damage to the equipment.

[0034] Working principle of the present invention:

[0035] The present invention mainly solves the problem of connection between the tool holder and the oil cylinder of the hydraulic shear and the cooling problem of the tool holder and the whole equipment;

[0036] In order to solve the connection problem between the tool holder and the oil cylinder, the top of the ejection rod 9 of the present invention is set as an "L"-shaped avoidance groove, and the bottom end of the connecting tool holder 6 is set as an "L"-shaped avoidance groove adapted to the top of the ejection rod 9, and the bottom end of the ejection rod 9 avoidance groove is fixedly connected to the bottom end of the connecting tool holder 6 by a fixing bolt 8. In addition, the side of the ejection rod 9 avoidance groove is connected to the side of the connecting tool holder 6 by a fixing bolt 8, thereby fixing the connecting tool holder 6 and the ejection rod 9. After the two are fixedly connected, the "L" shape itself has good stability, and the bottom end and the side of the "L" shape are connected by the fixing bolt 8, thereby making the connection between the connecting tool holder 6 and the ejection rod 9 more stable. Therefore, when shearing, it can withstand greater shearing force, and the cross-sectional quality of the steel billet after shearing is better.

[0037] In order to solve the cooling problem of the equipment, in addition to the existing cooling water circuit of the equipment, when the equipment is shearing, the ejection rod 9 drives the connecting knife seat 6 to move up and down, and when the connecting knife seat 6 moves up and down, it drives the connecting rod 501 to move up and down. When the connecting rod 501 moves up and down, it drives the connecting rack 502 to move up and down. When the connecting rack 502 moves up and down, it drives the synchronous gear 503 to rotate through the rack on its side. When the synchronous gear 503 rotates, it drives the small bevel gear 510 to accelerate rotation through the gear shaft 504 and the large bevel gear 505. The small bevel gear 510 drives the cooling fan 506 to accelerate rotation. When the cooling fan 506 rotates, the wind it generates will blow the hot air of the steel billet upward, and the cooling fan 506 will change the direction of the fan blades as the connecting rod 501 moves up or down, so as to always maintain the blowing state, thereby improving the cooling effect of the equipment.

[0038] Finally, a few points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships. If the absolute positions of the objects being described change, the relative positional relationships may also change.

[0039] Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the implementation regulations of the present disclosure. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the present invention can be combined with each other;

[0040] Finally: The above are only embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An integral tool holder with an L-shaped connection structure, comprising a hanging plate (1), characterized in that: The bottom end of the hanging plate (1) is fixedly connected to a main frame (2), the side of the main frame (2) is fixedly connected to a feed port (3), the bottom end of the main frame (2) is fixedly connected to a hydraulic cylinder (4), the middle part of the top of the hydraulic cylinder (4) is fixedly connected to an ejection rod (9), the top of the ejection rod (9) is fixedly connected to a connecting knife seat (6), the top of the side of the connecting knife seat (6) is fixedly connected to a lower blade (7), the bottom end of the hydraulic cylinder (4) is fixedly connected to a cooling mechanism (5), the top of the ejection rod (9) is provided with an avoidance groove, the top of the ejection rod (9) is set to be "L"-shaped, the bottom end of the connecting knife seat (6) is provided with an avoidance groove matched with the avoidance groove of the ejection rod (9), and the intersection structure between the connecting knife seat (6) and the ejection rod (9) is "L"-shaped; The side of the connecting knife seat (6) is fixedly connected to a connecting rod (501), the bottom end of the connecting rod (501) is fixedly connected to a connecting rack (502), the side of the connecting rack (502) is movably engaged with a synchronous gear (503), the interior of the synchronous gear (503) is fixedly connected to a gear shaft (504), the side of the gear shaft (504) is movably engaged with a large bevel gear (505), the side of the large bevel gear (505) is movably engaged with a small bevel gear (510), the side of the small bevel gear (510) is fixedly connected to a rotating shaft (511), the side of the rotating shaft (511) is fixedly connected to a cooling fan (506), both sides of the gear shaft (504) are movably connected to fixed plates (507), the other side of the fixed plate (507) is fixedly connected to the side of the hydraulic cylinder (4).

2. The integral tool holder with an L-shaped connection structure according to claim 1, characterized in that: A bolt hole is provided at the bottom end of the avoidance groove of the ejection rod (9), and a bolt hole corresponding to the lower blade (7) is provided at the bottom end of the connecting knife seat (6) near the side surface thereof, and corresponding bolt holes are provided on the side surface of the avoidance groove of the ejection rod (9) and the side surface of the connecting knife seat (6), and fixing bolts (8) are fixedly connected in the bolt holes of the connecting knife seat (6) and the ejection rod (9).

3. The integral tool holder with an L-shaped connection structure according to claim 1, characterized in that: The width of the avoidance groove at the top of the ejection rod (9) is the same as the diameter of the top of the ejection rod (9), and the height of the avoidance groove of the ejection rod (9) is the same as its width, and the bottom end of the connecting knife seat (6) is completely fitted with the top of the ejection rod (9).

4. The integral tool holder with an L-shaped connection structure according to claim 1, characterized in that: The side and interior of the main frame (2) are provided with sliding grooves adapted to the connecting rod (501), and a distance of two centimeters is left between the bottom end of the upper connecting rod (501) and the bottom plane of the main frame (2).

5. The integral tool holder with an L-shaped connection structure according to claim 1, characterized in that: The diameter of the meshing portion of the large bevel gear (505) and the small bevel gear (510) is twice the diameter of the synchronous gear (503), and the ratio of the diameters of the large bevel gear (505) and the small bevel gear (510) is two to one.

6. The integral tool holder with an L-shaped connection structure according to claim 5, characterized in that: The bottom end of the connecting rod (501) is provided with a avoiding hole matched with the limiting rod (509), the side of the limiting rod (509) is fixedly connected with a connecting plate (508), and the other side of the connecting plate (508) is fixedly connected with the side of the fixing plate (507).

7. The integral tool holder with an L-shaped connection structure according to claim 6, characterized in that: The bottom end of the rotating shaft (511) is movably connected to a support plate (512), and the side of the support plate (512) away from the rotating shaft (511) is fixedly connected to the side of the hydraulic cylinder (4), and the inner side of the support plate (512) is fixedly connected to a limiting groove (514), and the interior of the limiting groove (514) is movably connected to a rotating ring (513), and the inner side of the rotating ring (513) is fixedly connected to the side of the cooling fan (506).

8. The integral tool holder with an L-shaped connection structure according to claim 7, characterized in that: The blades in the cooling fan (506) are movably connected to the support body, and the swinging direction of the blades changes with the rotation direction of the support body.

Images