Chilled cast iron plunger heat treatment support mechanism

Abstract

The utility model relates to cast -iron plunger production technical field especially relates to a cold hard cast -iron plunger heat treatment support mechanism, including control assembly, moving frame, first oil cylinder, connecting block, lifting mechanism, control mechanism, electromagnetic heating ring and plunger body, the moving frame is set in the control assembly top inside, first oil cylinder is installed in moving frame both sides, the connecting block fixed setting is in first oil cylinder telescopic end, the lifting mechanism fixed setting is in the connecting block inside, this cold hard cast -iron plunger heat treatment support mechanism will plunger horizontal lifting to with electromagnetic heating ring is in concentric state, and according to heating time need control plunger slow through electromagnetic heating coil, to realize the efficient heating to plunger, in the heating process, the lifting seat setting at its bottom automatically falls when passing through electromagnetic heating coil, and automatically rises after passing through the coil, to guarantee the multiple point position effective support, and avoided the interference that lifting mechanism and electromagnetic heating ring produced simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of cast iron plunger manufacturing technology, and in particular to a heat treatment support mechanism for chilled cast iron plungers. Background Technology

[0002] Chilled cast iron plungers are plungers made of chilled cast iron. During manufacturing, a faster-cooling metal mold is used for the wear-resistant parts of the casting, while a sand mold is used for the remaining parts. This results in a white cast iron structure on the wear-resistant surface and gray and mottled cast iron structures in the remaining areas. This design gives the casting both high hardness and wear resistance, as well as good toughness. Chilled cast iron plungers are commonly used in applications requiring high wear resistance and good toughness, such as rolling mill rolls, train wheels, crane wheels, and crusher components.

[0003] Cast iron plungers require heat treatment to improve their mechanical properties. Due to their large size, they are usually heated in a furnace. However, electromagnetic coil heating has its unique advantages. Due to the size of the plunger and the difficulty of clamping, electromagnetic coil heating is difficult to implement. This problem can be effectively solved by providing effective support to ensure that the clamped plunger can be effectively supported during movement. Therefore, a heat treatment support mechanism is needed to effectively support the bottom of the plunger when it is electromagnetically heated, ensuring the support effect while avoiding collision between the support device and the heating coil. Utility Model Content

[0004] This utility model addresses the deficiencies in the existing technology by providing a heat treatment support mechanism for chilled cast iron plungers.

[0005] This utility model is achieved through the following technical solution:

[0006] A chilled cast iron plunger heat treatment support mechanism includes a control component, a movable frame, a first hydraulic cylinder, a connecting block, a lifting mechanism, a control mechanism, an electromagnetic heating coil, and a plunger body. The movable frame is mounted on the inner top of the control component. The first hydraulic cylinder is installed on both sides of the movable frame. The connecting block is fixedly installed on the telescopic end of the first hydraulic cylinder. The lifting mechanism is fixedly installed on the inner side of the connecting block. The control mechanism is fixedly installed on the outer side of the control component. The plunger body is mounted on the top of the lifting mechanism. The electromagnetic heating coil is sleeved on the outer side of the plunger body. The control component includes a mounting frame, a rolling shaft, a motor, and a lead screw. The rolling shaft is movably connected to the inner side of the mounting frame. The motor is installed on the outer side of the mounting frame. One end of the lead screw is fixedly connected to the output end of the motor. The lifting mechanism includes an equipment frame, a second hydraulic cylinder, and a lifting seat. The second hydraulic cylinder is installed at the bottom of the equipment frame. The lifting seat is fixedly installed on the telescopic end of the second hydraulic cylinder.

[0007] In a preferred embodiment of the present invention, the control mechanism includes a connecting rod, a crossbar, a sensing frame, a limiting seat, and an elastic plate. The crossbar is fixedly disposed on the inner side of the top of the connecting rod. The sensing frame is movably connected to the end of the crossbar via a pin. The limiting seat is fixedly disposed on the outer side of one end of the crossbar, and one end of the elastic plate is fixedly disposed on the inner side of the limiting seat.

[0008] The control mechanism mainly controls the lifting mechanism that runs to the electromagnetic heating coil. It provides a control signal to the second hydraulic cylinder through the contact between the induction frame and the lifting seat, thereby controlling the extension and retraction of the second hydraulic cylinder.

[0009] In a preferred embodiment of the present invention, the lifting seat has a Y-shaped structure, with support wheels movably connected to both ends of its top. The top of the equipment frame is provided with a shrinkage hole that cooperates with the lifting seat, and the top support wheel of the lifting seat contacts the surface of the plunger body.

[0010] The support seat provides multi-point support to the bottom of the plunger body, thereby ensuring that the entire plunger body can be effectively heated in the electromagnetic heating coil during its forward movement, and also ensuring its stability.

[0011] In a preferred embodiment of the present invention, the movable frame is connected to the lead screw by a thread, guide support plates are provided at the bottom of both sides of the movable frame, a support groove that cooperates with it is opened on the inner side of the mounting frame, and the bottom of the movable frame is in contact with the surface of the rolling shaft.

[0012] The rolling shaft effectively supports the movable frame, and the side guide support plate of the movable frame is locked in the guide support groove inside the mounting frame, which effectively guides the movement of the movable frame.

[0013] In a preferred embodiment of this utility model, one end of the elastic sheet is fixed to one side of the sensing frame, and the sensing frame is in contact with the support seat.

[0014] The beneficial effects of this utility model are:

[0015] The chilled cast iron plunger heat treatment support mechanism raises the plunger horizontally to a concentric position with the electromagnetic heating coil. It controls the plunger to slowly pass through the electromagnetic heating coil according to the heating time requirements, thereby achieving efficient heating of the plunger. During the heating process, the support seat at its bottom automatically falls when passing through the electromagnetic heating coil and automatically rises after passing through the coil, thus ensuring effective support at multiple points while avoiding interference between the support mechanism and the electromagnetic heating coil. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the chilled cast iron plunger heat treatment support mechanism of this utility model.

[0017] Figure 2This is a schematic diagram of the control component structure of the chilled cast iron plunger heat treatment support mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the lifting mechanism structure of the chilled cast iron plunger heat treatment support mechanism of this utility model.

[0019] Figure 4 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Control component; 11. Mounting bracket; 12. Rolling shaft; 13. Motor; 14. Lead screw; 2. Moving frame; 3. First hydraulic cylinder; 4. Connecting block; 5. Lifting mechanism; 51. Equipment frame; 52. Second hydraulic cylinder; 53. Lifting seat; 6. Control mechanism; 61. Connecting rod; 62. Crossbar; 63. Sensing frame; 64. Limit seat; 65. Elastic sheet; 7. Electromagnetic heating coil; 8. Plunger body. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0022] like Figure 1-4 The illustrated chilled cast iron plunger heat treatment support mechanism includes a control component 1, a movable frame 2, a first hydraulic cylinder 3, a connecting block 4, a lifting mechanism 5, a control mechanism 6, an electromagnetic heating coil 7, and a plunger body 8. The movable frame 2 is mounted on the inner top of the control component 1. The first hydraulic cylinder 3 is installed on both sides of the movable frame 2. The connecting block 4 is fixedly mounted on the telescopic end of the first hydraulic cylinder 3. The lifting mechanism 5 is fixedly mounted on the inner side of the connecting block 4. The control mechanism 6 is fixedly mounted on the outer side of the control component 1. The plunger body 8 is mounted on the lifting mechanism. 5. At the top, the electromagnetic heating coil 7 is sleeved on the outside of the plunger body 8. The control component 1 includes a mounting bracket 11, a rolling shaft 12, a motor 13, and a lead screw 14. The rolling shaft 12 is movably connected to the inside of the mounting bracket 11. The motor 13 is installed on the outside of the mounting bracket 11. One end of the lead screw 14 is fixedly connected to the output end of the motor 13. The lifting mechanism 5 includes an equipment frame 51, a second hydraulic cylinder 52, and a lifting seat 53. The second hydraulic cylinder 52 is installed at the bottom of the equipment frame 51, and the lifting seat 53 is fixedly installed at the telescopic end of the second hydraulic cylinder 52.

[0023] Specifically, the control mechanism 6 includes a connecting rod 61, a crossbar 62, a sensing frame 63, a limiting seat 64, and an elastic plate 65. The crossbar 62 is fixedly installed on the inner side of the top of the connecting rod 61. The sensing frame 63 is movably connected to the end of the crossbar 62 via a pin. The limiting seat 64 is fixedly installed on the outer side of one end of the crossbar 62. One end of the elastic plate 65 is fixedly installed on the inner side of the limiting seat 64. The lifting seat 53 has a Y-shaped structure, with support wheels movably connected to both ends of its top. The top of the equipment frame 51 has a contraction hole that mates with the lifting seat 53. The top support wheel of the lifting seat 53 contacts the surface of the plunger body 8. The moving frame 2 is connected to the lead screw 14 via a thread. Guide support plates are provided at the bottom of both sides of the moving frame 2. The inner side of the mounting frame 11 has a support groove that mates with it. The bottom of the moving frame 2 contacts the surface of the rolling shaft 12. One end of the elastic plate 65 is fixed to one side of the sensing frame 63. The sensing frame 63 contacts the lifting seat 53.

[0024] In this embodiment, the plunger body 8 is first hoisted to the top of the support seat 53. Then, the extension length of the first cylinder 3 is adjusted according to the diameter of the plunger body 8. Through the extension and retraction of the first cylinder 3, the plunger body 8 is raised to a concentric state with the electromagnetic heating coil 7 through the connecting block 4 connected to the outside of the equipment frame 51 at its extension end. Then, under the drive of the motor 13, the lead screw 14 rotates. The moving frame 2 is connected to the lead screw 14 by threads. The guide support plates on both sides are locked in the guide support groove inside the mounting frame 11. The bottom of the moving frame 2 contacts the top of the rolling shaft 12, thereby ensuring that the rolling shaft 12 provides effective support and the guide support plates provide effective guidance, so that the plunger body 8 at the top of the lifting mechanism 5 can move back and forth at the top of the mounting frame 11 under the action of the motor 13.

[0025] Furthermore, two control mechanisms 6 are provided on the outside of the mounting frame 11. The front control mechanism 6 is higher than the rear control mechanism 6. When the lifting seat 53 moves forward and reaches the front control mechanism 6, its sensing frame 63 contacts the lifting seat 53 and rotates it around the pin connected to the crossbar 62. The elastic plate 65 deforms, and the second hydraulic cylinder 52 corresponding to the lifting seat 53 retracts, and the lifting seat 53 moves down to avoid interference between the lifting seat 53 and the electromagnetic heating coil 7 during the movement. When the sensing frame 63 of the rear control mechanism 6 contacts the retracted lifting seat 53 again, the second hydraulic cylinder 52 rises to the top of the corresponding lifting seat 53 and contacts the outside of the plunger body 8 again, thus maintaining effective support at multiple points at all times and ensuring the support effect of the plunger body 8 during the movement.

[0026] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.

[0027] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A heat treatment support mechanism for a chilled cast iron plunger, comprising a control assembly (1), a moving frame (2), a first hydraulic cylinder (3), a connecting block (4), a lifting mechanism (5), a control mechanism (6), an electromagnetic heating coil (7), and a plunger body (8), characterized in that: The movable frame (2) is mounted on the inner side of the top of the control component (1), the first oil cylinder (3) is installed on both sides of the movable frame (2), the connecting block (4) is fixedly mounted on the telescopic end of the first oil cylinder (3), the lifting mechanism (5) is fixedly mounted on the inner side of the connecting block (4), the control mechanism (6) is fixedly mounted on the outer side of the control component (1), the plunger body (8) is mounted on the top of the lifting mechanism (5), and the electromagnetic heating coil (7) is sleeved on the outside of the plunger body (8). The control component (1) includes a mounting bracket (11), a rolling shaft (12), a motor (13), and a lead screw (14). The rolling shaft (12) is movably connected to the inner side of the mounting bracket (11), the motor (13) is mounted on the outer side of the mounting bracket (11), and one end of the lead screw (14) is fixedly connected to the output end of the motor (13). The lifting mechanism (5) includes an equipment frame (51), a second hydraulic cylinder (52) and a lifting seat (53). The second hydraulic cylinder (52) is installed at the bottom of the equipment frame (51), and the lifting seat (53) is fixedly installed at the telescopic end of the second hydraulic cylinder (52).

2. The chilled cast iron plunger heat treatment support mechanism according to claim 1, characterized in that: The control mechanism (6) includes a connecting rod (61), a crossbar (62), a sensing frame (63), a limiting seat (64), and an elastic plate (65). The crossbar (62) is fixedly installed on the inner side of the top of the connecting rod (61). The sensing frame (63) is movably connected to the end of the crossbar (62) by a pin. The limiting seat (64) is fixedly installed on the outer side of one end of the crossbar (62). One end of the elastic plate (65) is fixedly installed on the inner side of the limiting seat (64).

3. The chilled cast iron plunger heat treatment support mechanism according to claim 1, characterized in that: The lifting seat (53) has a Y-shaped structure, with support wheels movably connected to both ends of its top. The top of the equipment frame (51) has a shrinkage hole that cooperates with the lifting seat (53), and the support wheel at the top of the lifting seat (53) contacts the surface of the plunger body (8).

4. The chilled cast iron plunger heat treatment support mechanism according to claim 1, characterized in that: The movable frame (2) is connected to the lead screw (14) by a thread. Guide support plates are provided on the bottom of both sides of the movable frame (2). A support groove that matches it is opened on the inner side of the mounting frame (11). The bottom of the movable frame (2) is in contact with the surface of the rolling shaft (12).

5. The chilled cast iron plunger heat treatment support mechanism according to claim 2, characterized in that: One end of the elastic sheet (65) is fixed to one side of the sensing frame (63), and the sensing frame (63) is in contact with the support seat (53).

Images