Quick quenching hoisting fixture structure for high manganese steel castings

Abstract

The present application relates to high manganese steel casting quenching processing technical field, disclose a kind of high manganese steel casting quick quenching hoisting fixture structure, including mobile lifting platform, steel wire rope perforation is arranged in the mobile lifting platform and lifting platform reinforcing column;Mobile lifting platform two ends are respectively equipped with rail wheel frame, rail wheel motor, power rail wheel, vice rail wheel are installed on rail wheel frame, and anti-collision rubber block is arranged in the end of rail wheel frame;Solve the defect that traditional chain, sling binding hoisting high-temperature high manganese steel casting is difficult to operate, the device uses hydraulic drive mechanical clamp directly clamps casting, without artificial binding sling chain, can be quickly completed clamping under high temperature, avoid high temperature to cause harm to operator.Multiple sets of fixture frame can adjust clamping point, can be adapted to different shape, different size high manganese steel casting, overcome the problem that traditional lifting fixture clamping size is fixed, poor universality.

Description

Technical Field

[0001] This invention relates to the field of quenching processing technology for high manganese steel castings, specifically to a rapid quenching hoisting fixture structure for high manganese steel castings. Background Technology

[0002] High-manganese steel is an austenitic wear-resistant steel with manganese as the main alloying element. After casting, it requires water quenching (heating to above the critical temperature, holding for a period of time, and then rapidly quenching in water) to obtain a single austenitic structure, thereby ensuring its excellent toughness and work hardening ability. During the water quenching process, the high-manganese steel casting needs to be held in a heating furnace to 1050℃~1100℃, and then quickly transferred to a quenching water tank for rapid cooling. The immersion time is usually controlled within a few minutes.

[0003] Current hoisting methods mostly use chains or ropes to secure castings. However, because castings are extremely hot after high-temperature heat treatment, it is difficult to firmly secure the chains during operation, making the castings prone to loosening during hoisting and immersion in water. Furthermore, rope hoisting itself has poor stability and insufficient load-bearing capacity, posing significant safety hazards under rapid movement and water impact.

[0004] Existing lifting devices often have fixed-size clamping or support structures, making it difficult to flexibly adjust lifting points and clamping spacing when the size or shape of the casting changes.

[0005] Therefore, based on the above-mentioned technical problems, it is necessary for those skilled in the art to develop a rapid quenching and hoisting fixture structure for high manganese steel castings. Summary of the Invention

[0006] The purpose of this invention is to provide a rapid quenching and hoisting fixture structure for high manganese steel castings to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A technical solution for a rapid quenching hoisting fixture for high manganese steel castings includes a movable hoisting platform with wire rope perforations and reinforcing columns inside. Rail wheel frames are mounted at both ends of the movable hoisting platform, and a rail wheel motor, a power rail wheel, and a secondary rail wheel are installed on the rail wheel frames. Anti-collision rubber blocks are provided at the ends of the rail wheel frames. A hoisting winding motor is mounted on the upper part of the movable hoisting platform, and the output end of the hoisting winding motor is connected to a winding transmission assembly, which drives a wire rope winding drum. Both ends of the wire rope winding drum are supported by winding drum bearing seats. A limit roller mounting frame is provided on the movable hoisting platform for limiting... The roll-mounted frame is equipped with a wire rope anti-sway limit roller; the wire rope is wound around the wire rope take-up roller, passes through the wire rope through the wire rope hole, and connects downward to the lifting device seat via the wire rope wheel; multiple sets of clamp frames are connected below the lifting device seat; a fixed clamping part is set on the clamp frame, and a hydraulic push rod is vertically mounted on the clamp frame. The output end of the hydraulic push rod is connected to a push head, and the push head hinges to drive the movable clamping block; the rail wheel motor drives the moving platform to move quickly horizontally, the lifting take-up motor controls the lifting and lowering of the lifting device seat, and the hydraulic push rod drives the movable clamping block to cooperate with the fixed clamping part to clamp the high manganese steel casting, realizing the rapid lifting of the high-temperature casting into water quenching.

[0008] As a preferred technical solution, the wire rope is perforated vertically in the movable platform plate, and the platform reinforcement column is vertically fixed in the inner cavity of the movable platform. The platform reinforcement column strengthens the structure of the movable platform and bears the lifting load.

[0009] As a preferred technical solution, the rail wheel frame is fixedly installed at both ends of the mobile lifting platform, the rail wheel motor is mounted on the rail wheel frame, the rail wheel motor drives the power rail wheel, and the auxiliary rail wheel is driven to support the movement; anti-collision rubber blocks are installed at the ends of the rail wheel frame to play a role in buffering and preventing collisions at the end of the stroke.

[0010] As a preferred technical solution, the hoisting winding motor and winding transmission assembly are installed on the top surface of the mobile hoisting platform, and the two ends of the wire rope winding drum are rotatably supported on the winding drum bearing seats; the hoisting winding motor drives the wire rope winding drum to rotate forward and backward through the winding transmission assembly, so as to realize the winding and unwinding of the wire rope and control the lifting of the hoisting platform.

[0011] As a preferred technical solution, the limiting roller mounting frame is fixed on the upper part of the mobile lifting platform, and several sets of wire rope anti-sway limiting rollers are rotatably installed on the limiting roller mounting frame. The wire rope anti-sway limiting rollers are in contact with the wire rope, constrain the swing of the wire rope, and suppress the swaying during hoisting.

[0012] As a preferred technical solution, the wire rope wheel is rotatably mounted at the corner of the lifting device seat, and the wire rope passes around the wire rope wheel and connects to the lifting device seat; the lifting device seat has multiple suspension clamps below it, and the lifting points of the clamps can be adapted to high manganese steel castings of different shapes and sizes.

[0013] As a preferred technical solution, the clamping frame is fixedly connected to the outer side of the clamping unit, the hydraulic push rod is vertically fixed to the clamping frame, the lower end of the hydraulic push rod is connected to the push head, and the push head is hinged to the movable clamping block.

[0014] As a preferred technical solution, when the hydraulic push rod extends, the push head pushes the movable clamping block to swing, and the movable clamping block moves towards the fixed clamping part to clamp the casting; when the hydraulic push rod retracts, the movable clamping block releases the casting.

[0015] As a preferred technical solution, the multiple sets of clamp frames operate synchronously, with the movable clamping blocks and fixed clamping parts clamping the high-temperature high-manganese steel castings from multiple points.

[0016] As a preferred technical solution, the mobile lifting platform can quickly move horizontally in conjunction with the lifting fixture to quickly lower itself, thus shortening the transfer time from casting exiting the furnace to entering the water.

[0017] Compared with the prior art, the beneficial effects of the present invention are: it solves the defects of the traditional chain and rope binding and hoisting of high temperature high manganese steel castings. The device uses hydraulically driven mechanical clamping blocks to directly clamp the castings, eliminating the need for manual binding of ropes and chains. It can quickly complete the clamping under high temperature conditions, avoiding the risk of injury to operators from high temperature.

[0018] Multiple sets of clamping frames allow for adjustable clamping points, adapting to high-manganese steel castings of different shapes and sizes, overcoming the problems of fixed clamping dimensions and poor versatility of traditional lifting tools. The movable lifting platform, in conjunction with the coiling mechanism, enables rapid horizontal movement and immersion in water after the casting exits the furnace, shortening the exposure time of high-temperature castings in air. This meets the stringent immersion time requirements for water toughening treatment of high-manganese steel, ensuring the austenitic structure of the casting and guaranteeing the product's mechanical properties.

[0019] A wire rope anti-sway limit roller is installed to suppress large swings of the wire rope during hoisting, ensuring smooth operation of the casting and preventing loosening under hoisting and water impact, thus improving the safety of hoisting high-temperature castings. The hoisting platform is equipped with internal reinforcing columns, resulting in high overall structural strength and load-bearing capacity, suitable for hoisting heavy high-manganese steel castings during quenching. Anti-collision rubber blocks are installed at the ends of the rail wheel frame to prevent damage to the equipment from excessive impact during the moving platform's travel.

[0020] The hydraulic push rod drives the hinged clamping block, which has controllable clamping force and a firm grip. When immersed in water and impacted by the water flow, the casting will not slip or fall off, reducing the risk of safety accidents in the quenching process. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of a rapid quenching and hoisting fixture for high manganese steel castings; Figure 2 A front view of a rapid quenching and hoisting fixture structure for high manganese steel castings; Figure 3A schematic diagram of a movable lifting platform for a rapid quenching and hoisting fixture structure for high-manganese steel castings; Figure 4 A top view schematic diagram of a rapid quenching and hoisting fixture structure for high manganese steel castings; Figure 5 This is a schematic diagram of a clamping fixture structure for rapid quenching and hoisting of high manganese steel castings.

[0022] In the attached diagram, the following are the reference numerals: 1. Mobile lifting platform; 11. Wire rope perforation; 12. Lifting platform reinforcement column; 21. Rail wheel frame; 22. Rail wheel motor; 23. Power rail wheel; 24. Auxiliary rail wheel; 26. Anti-collision rubber block; 31. Lifting and winding motor; 32. Winding transmission assembly; 33. Wire rope winding drum; 34. Wire rope; 35. Lifting device seat; 36. Wire rope wheel; 37. Winding drum bearing seat; 38. Limiting roller mounting frame; 39. Wire rope anti-sway limiting drum; 4. Clamp frame; 41. Fixed clamp; 42. Hydraulic push rod; 43. Push head; 44. Movable clamp block. Detailed Implementation

[0023] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. For those skilled in the art, the present invention can be practiced without some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present invention by illustrating examples of the invention.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, this invention provides a structural solution for a rapid quenching hoisting fixture for high manganese steel castings: It includes a movable platform 1, which is an integral load-bearing frame with wire rope through holes 11 in the plate and reinforcing columns 12 arranged in the inner cavity; rail wheel frames 21 are fixed at both ends of the movable platform 1, and a rail wheel motor 22, a power rail wheel 23, and a secondary rail wheel 24 are installed on the rail wheel frames 21, with anti-collision rubber blocks 25 fitted at the ends of the rail wheel frames 21; a hoisting winding motor 31 is installed on the top surface of the movable platform 1, and the output of the hoisting winding motor 31 corresponds to a receiving winding transmission assembly 32, which is connected to a wire rope winding drum 33, with both ends of the wire rope winding drum 33 rotatably supported by winding drum bearing seats 37; a limiting roller mounting frame 38 is fixed on the upper part of the movable platform 1, and a wire rope anti-sway limiting drum is rotatably mounted on the limiting roller mounting frame 38. 39; The wire rope 34 is wound around the wire rope winding drum 33, passes downward through the wire rope through hole 11, and goes around the wire rope wheel 36 to hang the lifting device seat 35; Multiple clamping frames 4 are hung below the lifting device seat 35; The clamping frame 4 is equipped with a fixed clamping part 41, and a hydraulic push rod 42 is vertically installed on the clamping frame 4. The output end of the hydraulic push rod 42 is connected to the push head 43, and the push head 43 is hinged to drive the movable clamping block 44; During operation, the rail wheel motor 22 drives the power rail wheel 23 to move the mobile lifting platform 1 to the discharge position of the heating furnace; The hydraulic push rod 42 drives the movable clamping block 44 to swing, and the movable clamping block 44 clamps the high-temperature high-manganese steel casting with the fixed clamping part 41; The mobile lifting platform 1 quickly moves horizontally to the quenching water tank, the lifting winding motor 31 drives the wire rope winding drum 33 to release the rope, the lifting device seat 35 quickly descends, and the casting is put into the water tank to complete the water quenching.

[0025] Among them, the wire rope through hole 11 is vertically opened in the top plate of the mobile platform 1, allowing the wire rope 34 to pass downward; the platform reinforcement column 12 is vertically welded and fixed between the top plate and the bottom plate of the mobile platform 1; during the hoisting operation, the platform bears the downward tension brought by the wire rope, and the platform reinforcement column 12 improves the overall frame rigidity, prevents the platform from deforming and cracking under heavy load, and ensures the overall structural safety when hoisting heavy castings.

[0026] The track wheel frame 21 is bolted to the left and right ends of the mobile platform 1; the track wheel motor 22 is fixed on the frame of the track wheel frame 21, and the output shaft of the track wheel motor 22 is connected to the power track wheel 23. The auxiliary track wheel 24 serves as the driven wheel to support the whole machine. The rotation of the power track wheel 23 drives the entire mobile platform 1 to move along the track; the outermost end of the track wheel frame 21 is equipped with anti-collision rubber blocks 25; when the platform moves to the end of the track, the anti-collision rubber blocks 25 first contact the limit stop, and rely on the deformation of the rubber blocks to buffer the impact force, so as to avoid metal-to-metal collision damage to the platform and track equipment.

[0027] The hoisting and winding motor 31 and the winding transmission assembly 32 are fixed together on the upper surface of the mobile hoisting platform 1. The left and right ends of the wire rope winding drum 33 are installed inside the winding drum bearing seat 37 to achieve low-resistance rotation. The output torque of the hoisting and winding motor 31 is transmitted to the wire rope winding drum 33 through the winding transmission assembly 32. When the motor rotates forward, the drum winds up the wire rope 34 and the lifting seat 35 rises. When the motor rotates in reverse, the drum releases the wire rope 34 and the lifting seat 35 descends. This enables rapid lifting and lowering of castings, shortens the time of immersion in water, and meets the requirements of water-quenching process.

[0028] The limiting roller mounting frame 38 is welded and fixed to the upper frame of the mobile lifting platform 1. Multiple sets of wire rope anti-sway limiting rollers 39 are rotatably mounted on the limiting roller mounting frame 38. The wire rope 34 passes between the sets of wire rope anti-sway limiting rollers 39, and the rollers form a lateral constraint on the wire rope. When the casting is moved horizontally or rapidly lifted and lowered, the large left and right swing of the wire rope is restricted, the casting sway is reduced, the casting is lifted in a stable posture, and the casting is prevented from hitting the furnace mouth or the pool wall.

[0029] The wire rope wheel 36 is mounted on the corner of the lifting seat 35 using a bearing. The wire rope 34 passes around the wire rope wheel 36 to change the direction of force transmission and hangs on the lifting seat 35. Multiple hanging points are set below the lifting seat 35, and multiple sets of clamps 4 can be suspended according to the shape and size of the high manganese steel casting and the position of the center of gravity. The clamping position can be adjusted to adapt to the clamping and lifting requirements of castings of different specifications.

[0030] The fixed clamp 41 is rigidly fixed to one side of the clamp frame 4; the hydraulic push rod 42 is vertically installed on the main body of the clamp frame 4, and the lower end of the hydraulic push rod 42 is connected to the push head 43, which is hinged to the movable clamping block 44; when the hydraulic push rod 42 extends downward, the push head 43 moves downward, pushing the movable clamping block 44 to swing around the hinge point, and the movable clamping block 44 moves closer to the fixed clamp 41 to clamp the edge of the casting; the hydraulic push rod 42 retracts upward, driving the push head 43 to move upward, and the movable clamping block 44 swings outward to open and release the casting; the hydraulically driven clamping provides stable clamping force, and the high-temperature casting is clamped quickly without the need for manual binding of the lifting device.

[0031] Among them, multiple sets of clamping frames 4 synchronously control hydraulic push rods 42, and multiple sets of movable clamping blocks 44 and fixed clamping parts 41 hold the high-temperature high-manganese steel casting from multiple points. The multi-point clamping force is uniform and the casting is firmly clamped. After the clamping is completed, the rail wheel motor 22 drives the moving platform 1 to quickly move horizontally to the quenching water tank, while the hoisting and winding motor 31 controls the hoisting seat 35 to quickly lower the casting. This greatly shortens the transfer interval of the high-temperature casting from the furnace to the quenching water tank, meets the process time limit of the water toughening treatment of high-manganese steel, ensures that the casting obtains qualified austenitic structure, and improves the wear resistance and toughness of the casting. When the casting is immersed in water and subjected to the impact of water flow, the multi-point mechanical clamping can effectively prevent the casting from loosening and falling, and improve the operational safety of the quenching process.

[0032] The working principle and usage process of this invention are as follows: The mobile platform 1 of the device is installed on the traveling track bridging the heating furnace and the quenching water tank via rail wheels and rail wheel frame 21, completing the equipment positioning and connecting the hydraulic power and electrical control circuits. After the high manganese steel casting in the heating furnace has completed heating and heat preservation, the rail wheel motor 22 starts, driving the power rail wheel to rotate, moving the entire mobile platform 1 along the traveling track to the heating furnace discharge station. The anti-collision rubber block 26 can buffer the impact force of collision when the mobile platform 1 approaches the end limit, avoiding hard damage to the equipment. Once in place, adjust the suspension position of multiple clamp frames 4 below the lifting seat 35 to match the shape and center of gravity distribution of the casting to be lifted; then control the hydraulic push rods 42 of all clamp frames 4 to extend downwards synchronously, the lower end of the hydraulic push rod 42 drives the push head 43 to move downwards, the push head pushes the hinged movable clamping block 44 to swing around the hinge point towards the fixed clamping part, so that the movable clamping block 44 and the fixed clamping part 41 cooperate from multiple points on the edge of the casting to clamp the high temperature casting. The hydraulically driven clamping force is stable, and quick clamping can be completed without manual binding.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0034] In the description of this invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] The embodiments described above are not exhaustive and do not limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A rapid quenching and hoisting fixture structure for high manganese steel castings, characterized in that, The system includes a mobile platform (1), which has a wire rope through hole (11) and a platform reinforcement column (12) inside. The mobile platform (1) is equipped with a rail wheel frame (21) at both ends. The rail wheel frame (21) is equipped with a rail wheel motor (22), a power rail wheel (23), and a secondary rail wheel (24). The rail wheel frame (21) is equipped with anti-collision rubber blocks (25) at the end. The mobile platform (1) is equipped with a hoisting winding motor (31) on the upper part. The output end of the hoisting winding motor (31) is connected to the winding transmission assembly (32). The winding transmission assembly (32) drives the wire rope winding drum (33). The two ends of the wire rope winding drum (33) are supported by the winding drum bearing seats (37). The mobile platform (1) is equipped with a limit roller mounting frame (38). The limit roller mounting frame (38) is equipped with a wire rope anti-sway limit. Roller (39); Wire rope (34) is wound around wire rope winding drum (33), wire rope (34) passes through wire rope through hole (11), and is connected to lifting seat (35) downward through wire rope wheel (36); Multiple clamp frames (4) are connected below the lifting seat (35); Fixed clamp (41) is set on the clamp frame (4), and hydraulic push rod (42) is vertically mounted on the clamp frame (4). The output end of hydraulic push rod (42) is connected to push head (43), and push head (43) hinges to drive movable clamp block (44); Rail wheel motor (22) drives mobile platform (1) to move quickly, lifting winding motor (31) controls lifting seat (35) to rise and fall, hydraulic push rod (42) drives movable clamp block (44) to cooperate with fixed clamp (41) to clamp high manganese steel casting, so as to realize the rapid lifting of high temperature casting into water quenching.

2. The rapid quenching and hoisting fixture structure for high manganese steel castings according to claim 1, characterized in that: The wire rope through hole (11) is opened vertically through the plate of the movable platform (1). The platform reinforcement column (12) is vertically fixed in the inner cavity of the movable platform (1). The platform reinforcement column (12) strengthens the structure of the movable platform (1) and bears the hoisting load.

3. The rapid quenching and hoisting fixture structure for high manganese steel castings according to claim 2, characterized in that: The rail wheel frame (21) is fixedly installed on the left and right ends of the mobile platform (1). The rail wheel motor (22) is mounted on the rail wheel frame (21). The rail wheel motor (22) drives the power rail wheel (23), and the auxiliary rail wheel (24) supports the movement. The anti-collision rubber block (25) is installed at the end of the rail wheel frame (21) to buffer and prevent collision at the end of the stroke.

4. The rapid quenching and hoisting fixture structure for high manganese steel castings according to claim 3, characterized in that: The hoisting winding motor (31) and winding transmission assembly (32) are installed on the top surface of the mobile platform (1), and the two ends of the wire rope winding drum (33) are rotatably supported on the winding drum bearing seat (37). The hoisting winding motor (31) drives the wire rope winding drum (33) to rotate forward and backward through the winding transmission assembly (32), thereby realizing the winding and unwinding of the wire rope (34) and controlling the lifting of the lifting device seat (35).

5. The rapid quenching and hoisting fixture structure for high manganese steel castings according to claim 4, characterized in that: The limiting roller mounting frame (38) is fixed on the upper part of the mobile lifting platform (1). Several sets of wire rope anti-sway limiting rollers (39) are rotatably installed on the limiting roller mounting frame (38). The wire rope anti-sway limiting rollers (39) are in contact with the wire rope (34) to restrain the swing of the wire rope and suppress the swaying of the hoisting.

6. The rapid quenching and hoisting fixture structure for high manganese steel castings according to claim 5, characterized in that: The wire rope wheel (36) is rotatably mounted on the corner of the lifting seat (35), and the wire rope (34) passes around the wire rope wheel (36) and connects to the lifting seat (35); the lifting seat (35) has multiple hanging clamps (4) below it, and the lifting points of the clamps (4) can be adapted to high manganese steel castings of different shapes and sizes.

7. The rapid quenching and hoisting fixture structure for high manganese steel castings according to claim 6, characterized in that: The clamp frame (4) is fixedly connected to the outer side of the clamping part (41), the hydraulic push rod (42) is vertically fixed to the clamp frame (4), the lower end of the hydraulic push rod (42) is connected to the push head (43), and the push head (43) is hinged to the movable clamping block (44).

8. The rapid quenching and hoisting fixture structure for high manganese steel castings according to claim 7, characterized in that: When the hydraulic push rod (42) extends, the push head (43) pushes the movable clamping block (44) to swing, and the movable clamping block (44) moves toward the fixed clamping part (41) to clamp the casting; when the hydraulic push rod (42) retracts, the movable clamping block (44) releases the casting.

9. The rapid quenching and hoisting fixture structure for high manganese steel castings according to claim 8, characterized in that: The multiple sets of clamp frames (4) operate synchronously, and the movable clamping block (44) and the fixed clamping part (41) clamp the high temperature high manganese steel casting from multiple points.

10. The rapid quenching and hoisting fixture structure for high manganese steel castings according to claim 9, characterized in that: The mobile lifting platform (1) moves quickly to cooperate with the lifting fixture (35) to lower quickly, shortening the transfer time from casting to water.

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