Induction heating intelligent control system for hammer head

Abstract

The invention discloses an induction heating intelligent control system for a hammerhead, which comprises a moving trolley for soaking the bottom of the hammerhead in water and clamping and moving the hammerhead, and two sets of heating systems arranged on the two sides of a heating space, and when the two sets of heating systems are propelled, the angle of a heating device is automatically adjusted. The bottom of the hammerhead is immersed in water, the top of the hammerhead is heated so that the hardness of the bottom of the hammerhead can be guaranteed, meanwhile, the toughness of the top can be improved, and the situation that the hammerhead is broken in the striking process can be avoided; the hammer head is continuously heated in the propelling process, and the angle of the electromagnetic heating device is gradually adjusted along with the mounting frame in the heating process, so that the heating amplitude of the hammer head is gradually reduced from the top to the bottom, a structure with gradually reduced toughness and increased hardness is formed at the top impact part of the hammer head, and the service life of the hammer head is greatly prolonged.

Description

Technical Field

[0001] The invention relates to the field of hammer head heat treatment, in particular to an induction heating intelligent control system for the hammer head. Background Art

[0002] The hammerhead is the core component of the crusher. It uses the centrifugal force generated by high-speed rotation to impact, shear, and grind the material, achieving the desired crushing effect. It is typically made of wear-resistant materials such as high-manganese steel, high-chromium cast iron, or alloy steel. It comes in a variety of shapes and is mounted on the rotor for easy replacement and maintenance. The hammerhead wears quickly, especially when crushing hard materials, so it requires regular inspection and timely replacement.

[0003] As described in the background technology of patent application number CN202411704476.3, the current method for manufacturing a one-piece dual-hardness hammerhead is to pour molten steel into a sand mold to form a hammerhead casting. The entire hammerhead is first heated, and then the head of the hammerhead undergoes a separate quenching and tempering treatment, thereby imparting good hardness to the head and good toughness to the shank. In this way, the hardness and toughness of the shank and head of the hammerhead are differentiated to meet the hammerhead's operational requirements. However, using this manufacturing method, while the head of the resulting hammerhead has good hardness, its toughness varies, which can cause cracks during long-term use, ultimately leading to damage to the hammerhead and severely shortening its service life.

[0004] During the heat treatment process of the hammer head, as the temperature of the top part and the heating time decrease, the hardness and toughness of the hammer head will reach a gradient effect to meet the needs of crushing and extend its service life. However, the above patent uses a magnetic induction coil for heating, which obviously cannot achieve the effect of partition control from top to bottom. Summary of the Invention

[0005] Based on the deficiency in the prior art that gradient heating cannot be performed to improve the performance of different parts of the hammer head, the present invention provides an induction heating intelligent control system for the hammer head.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] Intelligent control system for induction heating of hammer head, including:

[0008] A mobile trolley is provided with a water tank and a clamping mechanism for clamping the hammer head in the water tank, which is used to clamp the bottom part of the hammer head and immerse it in water to keep the bottom part of the hammer head at a low temperature;

[0009] The heating system includes two symmetrical sets, including:

[0010] A heating isolation frame, which is used to isolate the space to form a heating area;

[0011] A telescopic mechanism, which is arranged on the isolation frame and has an output end that passes through the isolation frame and extends into the heating area;

[0012] a movable plate, which is arranged at the output end of the telescopic mechanism and moves horizontally within the heating area;

[0013] A retraction mechanism is provided on the upper side of the movable plate and has a retraction rod which is retracted under pressure;

[0014] a mounting frame, a top side of which is hingedly connected to the retraction rod;

[0015] A connecting rod mechanism comprising two symmetrical sets, each set comprising a first connecting rod hinged to the underside of the movable plate, a second connecting rod and a third connecting rod coaxially hinged to the first connecting rod, the second connecting rod hinged to the retraction rod, and the third connecting rod hinged to the underside of the mounting frame;

[0016] A heating mechanism comprising a heating device disposed on a mounting frame;

[0017] pressure sensors disposed on the top and bottom sides of the mounting frame;

[0018] When the mounting frame is initially in an inclined state and the telescopic mechanism drives the movable plate to move toward the middle of the heating area, when the top of the mounting frame is under pressure, the pressure sensor on the top side senses the pressure and feeds back to turn on the heating mechanism to start heating. At the same time, the movable plate continues to move and drives the connecting rod to move until the bottom of the mounting frame is in contact with the hammer head. At this time, the pressure sensor on the bottom side senses the pressure. When the pressure value exceeds the preset threshold, the telescopic mechanism stops moving and maintains it for a certain time for heating. When the mounting frame is in the initial state, the first connecting rod and the third connecting rod are bent upward to form an inverted V-shaped structure, and the second connecting rod is at an acute angle to the retraction rod.

[0019] Preferably, the threshold value of the pressure sensor on the top side of the mounting bracket is smaller than the threshold value of the pressure sensor on the bottom side.

[0020] Preferably, the heating system further comprises a first controller and a temperature sensor. The temperature sensor is arranged on the mounting frame. The first controller is electrically connected to the temperature sensor, the pressure sensor and the telescopic mechanism for unified control.

[0021] Preferably, the telescopic mechanism is a telescopic cylinder or an electric push rod.

[0022] Preferably, the retraction mechanism includes a sleeve arranged on the movable plate, a first sliding plate arranged in the sleeve, a second sliding plate arranged in the sleeve and a spring arranged in the sleeve and located between the first sliding plate and the second sliding plate, the spring is an elastic spring or a gas spring, threaded columns are provided on both sides of the first sliding plate and the side wall of the sleeve is provided with two axial strip holes for the threaded columns to extend, a locking nut is provided on the threaded column for locking the first sliding plate, the retraction rod is provided on the second movable plate and the second movable plate passes through the sleeve and extends out.

[0023] Preferably, the movable plate is further provided with guide posts, and the movable plate is slidably arranged on the guide posts.

[0024] Preferably, a track for the movement of the mobile trolley is provided on the ground, the mobile trolley is set on the track and moves along the track, a water tank is provided on the top of the mobile trolley, and the clamping mechanism is two telescopic clamping platforms arranged on the left and right sides of the water tank.

[0025] Preferably, a mounting platform is further provided at the bottom of the mobile vehicle, on which a water tank and a water pump are provided, and the water tank, the pump and the water tank are connected by pipes to form a circulating water circuit.

[0026] Preferably, a second controller is further provided on the mounting platform, and a Hall sensor and a magnet for sensing the stop position are provided between the track and the moving trolley, and the Hall sensor is electrically connected to the second controller.

[0027] Preferably, an electric regulating valve is provided on the pipeline between the water sink and the water tank, and an electronic water level gauge and a second temperature sensor are provided in the water sink. The electronic water level gauge, the second temperature sensor and the electric regulating valve are electrically connected to the second controller. The electronic water level gauge detects the water level in the water sink, and the second temperature sensor senses the temperature of the water in the water sink and feeds back to the second controller. The second controller controls the opening of the electric regulating valve and the speed of the pump to adjust the water level in the water sink and the circulation speed.

[0028] Compared with the prior art, the advantages of the present invention are as follows: the present application immerses the bottom of the hammer head in water and heats the top of the hammer head to ensure the hardness of the bottom position of the hammer head while improving the toughness of the top position to avoid breakage during the striking process. In addition, a propulsion mechanism is set to drive the electromagnetic heating device to approach the hammer head and heat it. The hammer head is continuously heated during the propulsion process. During the heating process, the angle of the electromagnetic heating device is gradually adjusted following the mounting frame so that the heating amplitude of the hammer head decreases from top to bottom, thereby forming a structure with decreasing toughness and increasing hardness at the impact part of the top of the hammer head, which greatly improves the service life of the hammer head. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present invention. Furthermore, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the depicted objects and may contain exaggerated representations. Furthermore, the drawings are not necessarily drawn to scale.

[0030] Figure 1 This is the main view of this application;

[0031] Figure 2A perspective view of this application;

[0032] Figure 3 is a three-dimensional diagram of the connecting rod mechanism;

[0033] Figure 4 is a cross-sectional view of the retraction mechanism;

[0034] Figure 5 This is a three-dimensional image of the mobile car (top perspective);

[0035] Figure 6 This is a three-dimensional image of the mobile car (bottom perspective);

[0036] In the figure: 10, heating isolation frame; 101, heating area; 20, heating system; 201, telescopic mechanism; 202, moving plate; 203, connecting rod mechanism; 203, first connecting rod; 2032, second connecting rod; 2033, third connecting rod; 2034, mounting frame; 204, retraction mechanism; 2041, sleeve; 20411, strip hole; 2042, retraction rod; 2043, first sliding plate; 20431, threaded column; 2044, locking nut; 2045, second sliding plate; 2046, spring; 205, moving trolley; 2051, water tank; 2052, mounting table; 2053, clamping mechanism; 20531, telescopic clamping table; 2054, water tank; 2055, pump; 2056, electric regulating valve; 206, heating device; 30, track. DETAILED DESCRIPTION

[0037] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0038] It should be noted that like reference numerals denote like items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0039] Example 1:

[0040] This embodiment mainly describes the subject of the induction heating intelligent control system for the hammer head, as follows:

[0041] Intelligent control system for induction heating of hammer head, such as Figure 1-6 Shown, including,

[0042] The movable carriage 205 is provided with a water tank 2051 and a clamping mechanism 2053 for clamping the hammer head is provided in the water tank 2051, which is used to clamp the bottom part of the hammer head and immerse it in water to keep the bottom part of the hammer head at a low temperature;

[0043] The heating system 20 comprises two sets of bilaterally symmetrical heating systems, including:

[0044] A heating isolation frame 10 is used to isolate a space to form a heating area 101;

[0045] The telescopic mechanism 201 is provided on the isolation frame and its output end passes through the heating isolation frame 10 and extends into the heating area 101;

[0046] A movable plate 202 is provided at the output end of the telescopic mechanism 201 and moves horizontally within the heating area 101;

[0047] A retraction mechanism 204 is provided on the upper side of the movable plate 202 and has a retraction rod 2042 that retracts under pressure;

[0048] a mounting frame 2034 , the top side of which is hingedly connected to a retraction rod 2042 ;

[0049] The connecting rod mechanism 203 includes two symmetrical sets, each set including a first connecting rod 2031 hinged to the lower side of the movable plate 202, a second connecting rod 2032 and a third connecting rod 2033 coaxially hinged to the first connecting rod 2031, the second connecting rod 2032 hinged to the retraction rod 2042, and the third connecting rod 2033 hinged to the bottom side of the mounting bracket 2034;

[0050] The heating mechanism includes a heating device 206 disposed on a mounting frame 2034 , wherein the heating device 206 is an electromagnetic heating coil;

[0051] Pressure sensors are provided on the top and bottom sides of the mounting bracket 2034;

[0052] When the mounting frame 2034 is initially in an inclined state and the telescopic mechanism 201 drives the movable plate 202 to move toward the middle of the heating area 101, when the top of the mounting frame 2034 is under pressure, the pressure sensor on the top side senses the pressure and feeds back to turn on the heating mechanism to start heating. At the same time, the movable plate 202 continues to move and drives the connecting rod to move until the bottom of the mounting frame 2034 is in contact with the hammer head. At this time, the pressure sensor on the bottom side senses the pressure. When the pressure value exceeds the preset threshold, the telescopic mechanism 201 stops moving and maintains it for a certain time for heating. When the mounting frame 2034 is in the initial state, the first connecting rod 2031 and the third connecting rod 2033 bend upward to form an inverted V-shaped structure and the second connecting rod 2032 forms an acute angle with the retraction rod 2042.

[0053] Preferably, the threshold value of the pressure sensor on the top side of the mounting bracket 2034 is smaller than the threshold value of the pressure sensor on the bottom side. Since the retraction rod 2042 has a travel space for retraction, the threshold value of the pressure sensor on the top side needs to be smaller.

[0054] Preferably, the heating system 20 further includes a first controller and a temperature sensor. The temperature sensor is disposed on the mounting bracket 2034. The first controller is electrically connected to the temperature sensor, the pressure sensor and the telescopic mechanism 201 for unified control.

[0055] Preferably, the telescopic mechanism 201 is a telescopic cylinder or electric push rod. During operation, the telescopic stroke and the time required for this stroke are set. When the upper pressure sensor senses a signal, the telescopic speed is slowed down and the device is slowly extended. When the lower pressure sensor senses a signal, the device stops for a period of time until heating is completed, and then the heating device 206 is turned off and retracted.

[0056] Preferably, the retraction mechanism 204 includes a sleeve 2041 arranged on the movable plate 202, a first sliding plate 2043 arranged in the sleeve 2041, a second sliding plate 2045 arranged in the sleeve 2041 and a spring 2046 arranged in the sleeve 2041 and located between the first sliding plate 2043 and the second sliding plate 2045. The spring 2046 is an elastic spring or a gas spring. Threaded columns 20431 are provided on both sides of the first sliding plate 2043 and the side wall of the sleeve 2041 is provided with two axial strip holes 20411 for the threaded columns 20431 to extend out. A locking nut 2044 for locking the first sliding plate 2043 is provided on the threaded column 20431. The retraction rod 2042 is arranged on the second movable plate and the second movable plate passes through the sleeve 2041 and extends out. In this solution, the first sliding plate 2043 can slide along the sleeve 2041 to adjust its position, and then be locked by the locking nut 2044 after the position is adjusted. When its position is adjusted, the position of the retraction rod 2042 is also adjusted, and finally the initial angle of the mounting bracket 2034 is adjusted. The larger the angle between the mounting bracket 2034 and the hammer head, the greater the difference in the heating amplitude at different heights of the hammer head, and vice versa. Therefore, the purpose of adjusting the heating amplitude difference can be achieved by adjusting the position of the first sliding plate 2043.

[0057] As preferred, guide posts are further provided on the movable plate 202, on which the movable plate 202 is slidably arranged. The guide posts are used for guiding and ensuring that the movable plate 202 moves in the horizontal direction.

[0058] Preferably, a track 30 is provided on the ground for the movement of the trolley 205. The trolley 205 is arranged on the track 30 and moves along the track 30. A water tank 2051 is provided on the top of the trolley. The clamping mechanism 2053 is composed of two telescopic clamping platforms 20531 provided on the left and right sides of the water tank 2051. The telescopic clamping platforms 20531 move toward each other to clamp and fix the hammer head.

[0059] Preferably, a mounting platform 2052 is further provided at the bottom of the mobile trolley 205, on which a water tank 2054 and a water pump 2055 are provided. A circulating water circuit is formed between the water tank 2054, the pump 2055 and the water tank 2051. In this solution, the temperature of the water in the water tank 2051 is maintained by providing a circulating water circuit.

[0060] Preferably, a second controller is also provided on the mounting platform 2052. A Hall effect sensor and a magnet are provided between the track 30 and the trolley 205 to sense the stop position. The Hall effect sensor is electrically connected to the second controller. In this embodiment, when the trolley 205 reaches the predetermined position, the Hall effect sensor senses the magnet and transmits a signal to the second controller, which in turn controls the trolley 205 to brake and stop.

[0061] Preferably, an electric regulating valve is provided in the pipeline between the water tank 2051 and the water tank 2054. An electronic water level gauge and a second temperature sensor are provided in the water tank 2051. The electronic water level gauge, the second temperature sensor, and the electric regulating valve are electrically connected to a second controller. The electronic water level gauge detects the water level in the water tank 2051. The second temperature sensor senses the temperature of the water in the water tank 2051 and feeds back to the second controller. The second controller controls the opening of the electric regulating valve and the rotation speed of the pump 2055 to adjust the water level and circulation speed in the water tank 2051. This solution controls the water temperature and the water level in the water tank 2051 based on the signal feedback from the electronic water level gauge and the second temperature sensor, and controls the circuit through the electric regulating valve, and controls the outlet through the pump 2055. This ensures that the height of the hammer head bottom immersed is within a preset range and that the temperature of the hammer head bottom is within a reasonable temperature range. In actual use, an electric regulating valve can be provided in the pipeline between the pump 2055 and the water tank 2051 to adjust the flow rate.

[0062] The above is a detailed introduction to the titles provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the present invention and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified. These improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. The intelligent control system for induction heating of hammer head is characterized by: include, A mobile trolley is provided with a water tank and a clamping mechanism for clamping the hammer head in the water tank, which is used to clamp the bottom part of the hammer head and immerse it in water to keep the bottom part of the hammer head at a low temperature; The heating system includes two symmetrical sets, including: A heating isolation frame, which is used to isolate the space to form a heating area; A telescopic mechanism, which is arranged on the isolation frame and has an output end that passes through the isolation frame and extends into the heating area; a movable plate, which is arranged at the output end of the telescopic mechanism and moves horizontally within the heating area; A retraction mechanism is provided on the upper side of the movable plate and has a retraction rod which is retracted under pressure; a mounting frame, a top side of which is hingedly connected to the retraction rod; A connecting rod mechanism comprising two symmetrical sets, each set comprising a first connecting rod hinged to the underside of the movable plate, a second connecting rod and a third connecting rod coaxially hinged to the first connecting rod, the second connecting rod hinged to the retraction rod, and the third connecting rod hinged to the underside of the mounting frame; A heating mechanism comprising a heating device disposed on a mounting frame; pressure sensors disposed on the top and bottom sides of the mounting frame; When the mounting frame is initially in an inclined state and the telescopic mechanism drives the movable plate to move toward the middle of the heating area, when the top of the mounting frame is under pressure, the pressure sensor on the top side senses the pressure and feeds back to turn on the heating mechanism to start heating. At the same time, the movable plate continues to move and drives the connecting rod to move until the bottom of the mounting frame is in contact with the hammer head. At this time, the pressure sensor on the bottom side senses the pressure. When the pressure value exceeds the preset threshold, the telescopic mechanism stops moving and maintains it for a certain time for heating. When the mounting frame is in the initial state, the first connecting rod and the third connecting rod are bent upward to form an inverted V-shaped structure, and the second connecting rod is at an acute angle to the retraction rod.

2. The induction heating intelligent control system for hammer head according to claim 1, characterized in that: The threshold value of the pressure sensor on the top side of the mounting frame is lower than the threshold value of the pressure sensor on the bottom side.

3. The induction heating intelligent control system for hammer head according to claim 1, characterized in that: The heating system also includes a first controller and a temperature sensor. The temperature sensor is arranged on the mounting frame. The first controller is electrically connected to the temperature sensor, the pressure sensor and the telescopic mechanism for unified control.

4. The induction heating intelligent control system for hammer head according to claim 1, characterized in that: The telescopic mechanism is a telescopic cylinder or an electric push rod.

5. The induction heating intelligent control system for hammer head according to claim 1, characterized in that: The retraction mechanism includes a sleeve arranged on the movable plate, a first sliding plate arranged in the sleeve, a second sliding plate arranged in the sleeve and a spring arranged in the sleeve and located between the first sliding plate and the second sliding plate. The spring is fixedly connected to the first sliding plate and the second sliding plate. Threaded columns are provided on both sides of the first sliding plate and two axial strip holes for the threaded columns to extend out are provided on the side wall of the sleeve. A locking nut for locking the first sliding plate is provided on the threaded column. The retraction rod is arranged on the second movable plate and the second movable plate passes through the sleeve and extends out.

6. The induction heating intelligent control system for hammer head according to claim 1, characterized in that: The movable plate is also provided with guide posts, on which the movable plate is slidably arranged.

7. The induction heating intelligent control system for hammer head according to claim 3, characterized in that: A track for the moving trolley is provided on the ground. The moving trolley is arranged on the track and moves along the track. A water tank is provided on the top of the moving trolley. The clamping mechanism is two telescopic clamping platforms arranged on the left and right sides of the water tank.

8. The induction heating intelligent control system for hammer head according to claim 3, characterized in that: A mounting platform is also provided at the bottom of the mobile trolley, on which a water tank and a water pump are arranged. The water tank, the pump and the water tank are connected by pipes to form a circulating water circuit.

9. The induction heating intelligent control system for hammer head according to claim 8, characterized in that: A second controller is also provided on the mounting platform. A Hall sensor and a magnet for sensing the stop position are provided between the track and the moving trolley. The Hall sensor is electrically connected to the second controller.

10. The induction heating intelligent control system for a hammer head according to claim 9, characterized in that: An electric regulating valve is provided on the pipeline between the water sink and the water tank. An electronic water level gauge and a second temperature sensor are provided in the water sink. The electronic water level gauge, the second temperature sensor and the electric regulating valve are electrically connected to the second controller. The electronic water level gauge detects the water level in the water sink. At the same time, the second temperature sensor senses the temperature of the water in the water sink and feeds back to the second controller. The second controller controls the opening of the electric regulating valve and thus the speed of the pump to adjust the water level in the water sink and the circulation speed.

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