Hammering hardening device for cone working surface of cone crusher

Abstract

The invention discloses a hammering and hardening device for a cone working surface of a cone crusher. The hammering and hardening device aims at solving the problems of uneven quality, low efficiency and the like existing in manual hammering and hardening. The equipment comprises a cone rotating mechanism, a hammer arm driving mechanism, a turntable, a telescopic arm and an air hammer, the cone rotating mechanism drives the cone to rotate, the hammer arm driving mechanism adjusts the height and the horizontal position of the sliding rail through manual adjustment, and the rotating disc manually adjusts the inclination angle of the telescopic arm to be matched with the inclination angle of the working face of the cone. The telescopic distance of the telescopic arm can be controlled through two modes, namely a full-manual mode driven by a telescopic hand wheel or a semi-automatic mode controlled by a microprocessor through a telescopic motor, and uniform hammering is completed in cooperation with an air hammer. Through the dual-mode design, manual operation in a simple scene and the automation requirement of large-scale production are considered, the hardened layer of the working face of the cone is uniform, the working efficiency is improved, the labor intensity is reduced, and the device is suitable for cones of different sizes.

Description

Technical Field

[0001] This invention belongs to the technical field of cone crusher cone processing equipment, specifically relating to a mechanical hammering device for hardening the working surface of a cone crusher cone. Background Technology

[0002] Cone crushers are core equipment in the mining and construction industries, and the wear resistance of their cone working surface directly determines the equipment's lifespan and crushing efficiency. The industry commonly employs a hammer hardening process, which uses repeated impacts to cause plastic deformation of the surface metal, forming a work-hardened layer to improve wear resistance.

[0003] Currently, hammer hardening mainly relies on manual operation, which has significant drawbacks: First, the quality is uneven, as it is difficult to standardize the force, frequency, and angle of manual hammering, resulting in areas that are either unhardened or overhardened, affecting the stress balance of the cone; second, efficiency is low, with skilled workers only able to complete 1-2 small to medium-sized cones per day, and large cones with a diameter exceeding 1.5m require 2-3 people to work together, making it difficult to meet the needs of large-scale production; third, it is labor-intensive and has high safety risks, with severe vibrations and noise exceeding 110 decibels during operation, which can easily lead to occupational diseases, and the reaction force of the tools can also cause slippage accidents; fourth, it depends on operating skills, with novices requiring 3-6 months of training before they can start working, and there are large differences in processing quality among workers, making standardization difficult; fifth, it has poor adaptability, as cones are mostly conical or stepped conical, making it difficult for manual workers to accurately control the hammering point, and curved transition areas are prone to being missed or repeatedly hammered.

[0004] Existing mechanical hammering equipment suffers from simple structures and insufficient adjustment flexibility: some can only hammer in one direction, failing to adapt to the curvature of conical surfaces; others, while adjustable in angle, are cumbersome to operate and have fixed hammering parameters, making them difficult to adapt to cones of different materials and thicknesses. Therefore, developing a semi-automatic hammering device that combines manual adjustment with automated control to achieve uniform hammering and adapt to cones of different sizes is key to solving these problems. Summary of the Invention

[0005] The present invention aims to provide a hammer hardening device for the working surface of a cone crusher, which realizes the hammering of the working surface of the cone through a mechanical structure to replace manual operation and solve the problems of uneven strength and low efficiency of manual hammering.

[0006] The core technical solution of this invention is as follows: A cone crusher cone working face hammer hardening device includes a cone rotation mechanism, a hammer arm drive mechanism, a turntable, a telescopic arm and a pneumatic hammer.

[0007] Cone rotation mechanism: includes a tray support and a tray that carries the cone and is driven to rotate by a turntable motor. The tray is provided with a cone fixing structure. The tray support is connected to the tray through an external tooth slewing support bearing or an internal tooth slewing support bearing. The turntable motor is connected to the gear plate of the external tooth slewing support bearing or the internal tooth slewing support bearing through a pinion on the output shaft of the reducer.

[0008] Hammer arm drive mechanism: includes two columns, each with a vertically sliding column sleeve, and a horizontally connected slide rail between the two column sleeves. A slider driven by a drive structure slides along the slide rail.

[0009] Telescopic boom: includes a fixed boom and a movable boom. The movable boom slides with the fixed boom through a telescopic boom groove. The movable boom is driven by a telescopic motor or a telescopic handwheel. The telescopic motor or telescopic handwheel drives the movable boom to move along the telescopic boom groove through a transmission structure.

[0010] Turntable: The turntable is located between the slider of the hammer arm drive mechanism and the fixed arm of the telescopic arm. It is used to adjust the angle of the telescopic arm and lock the angle after adjustment.

[0011] Pneumatic hammer: Installed at the lower end of the boom, it is used to hammer the working surface of the cone.

[0012] Based on the above solutions, the following optimizations can be used to further improve equipment performance: Cone fixing structure optimization: The cone fixing structure includes 3-5 clamping components distributed in a ring around the center of the tray. Each clamping component includes two parallel tray grooves radially fixed to the tray. A radially adjustable fixing block is installed on the two tray grooves by bolts. The fixing block has an inverted T-shaped groove, and a radially sliding movable block is installed in the inverted T-shaped groove. The fixing block has a screw limiting groove on its top and a threaded groove on its bottom. A clamping screw that is threadedly connected to the threaded groove is rotatably installed in the screw limiting groove. Rotating the clamping screw pushes the movable block to move radially to fix the cone.

[0013] Hammer arm drive mechanism optimization: Two column sleeves capable of sliding up and down are installed on each of the two columns. A hand-operated hoist is installed at the top of each column, connecting to the column sleeves. The two ends of the slide rail are connected to the two column sleeves respectively. Tightening screws are provided on the sides of the column sleeves. The slide rail and the column sleeves connected to its ends form a whole, and the height of the slide rail can be adjusted by the hand-operated hoist. After the slide rail height is manually adjusted to level by the hand-operated hoist, it is locked by the tightening screws, achieving manual height positioning. The slide rail adopts a rigid groove structure, with a translation screw installed in its groove. The translation screw is parallel to the slide rail, and its two ends are rotatably connected to the slide rail. The slider includes a square sleeve that slides onto the slide rail. A translation screw nut that cooperates with the translation screw is located inside the square sleeve. A translation handwheel is connected to one end of the translation screw, driving the translation screw to rotate. The cooperation between the translation screw and the translation screw nut moves the slider along the slide rail.

[0014] Turntable structure optimization: The turntable includes a fixed plate, a central disc, and a moving plate. The fixed plate is fixed to the side of the slider and has an annular step in the center. The central disc is located inside the annular step, and the moving plate is located outside the annular step. It is welded to the fixed arm of the telescopic arm through a pad. The central disc and the moving plate are connected by four evenly distributed turntable bolts. The four turntable bolts are located inside the step ring and do not contact or connect with the fixed plate. Loosening the turntable bolts can adjust the angle between the moving plate and the telescopic arm. By evenly tightening the four turntable bolts, the annular step of the moving plate and the fixed plate are tightly fitted. The tilt angle of the telescopic arm is determined by manually adjusting the turntable according to the tilt angle of the working surface of the cone (moving cone / fixed cone) and then locked by the turntable bolts to ensure angle stability.

[0015] Telescopic boom structure optimization: A telescopic screw parallel to the fixed arm is rotatably connected to the fixed arm, and its upper end is connected to the telescopic motor or telescopic handwheel. The fixed arm has a telescopic boom slide groove in the middle, and the movable arm is slidably installed in the telescopic boom slide groove. The movable arm has a telescopic screw nut that cooperates with the telescopic screw. The telescopic motor or telescopic handwheel drives the telescopic screw to rotate, and the movable arm extends and retracts along the telescopic boom slide groove through the cooperation of the telescopic screw and the telescopic screw nut.

[0016] Optimized Automation Control: An automated control system can be added, including a microprocessor, display, and keyboard; the telescopic motor uses a servo motor or stepper motor, connected to the microprocessor via a drive module; the telescopic arm's extension distance is automatically controlled, while other adjustments (height, horizontal position, tilt angle) are manual, forming a semi-automatic operation mode. The microprocessor can receive parameter commands input from the keyboard and control the telescopic motor and the turntable motor of the cone rotation mechanism to work together, achieving matching between the hammer's striking position and the cone's rotation, thus realizing automated hammering operations; the display is used to show the equipment's operating parameters and status.

[0017] The automation control has been further optimized: a telescopic limit switch is installed on the telescopic screw nut, and an upper stop block and a lower stop block for the limit switch are installed on the telescopic arm slide groove to cooperate with the telescopic limit switch.

[0018] Compared with the prior art, the present invention has the following significant advantages:

[0019] (1) More uniform hardening quality: The mechanical structure precisely controls the hammering force, frequency and angle of the air hammer, avoiding the problem of uneven force caused by manual operation, ensuring that the hardened layer on the working surface of the cone is uniform, ensuring the cone is subjected to balanced force, and improving its wear resistance and service life.

[0020] (2) Significantly improved work efficiency: With the help of semi-automatic design, manual intervention is reduced, and the efficiency is greatly improved compared with traditional manual operation, which can meet the needs of large-scale production for processing speed; the fully manual mode can also reduce operation time through mechanical assistance and improve the overall work rhythm.

[0021] (3) Reduced labor intensity and safety risks: Reduced direct manual participation in hammering operations, avoiding the harm of strong vibration and high noise environment to operators, while avoiding accidents caused by tool reaction force, improving work safety and reducing the risk of occupational diseases.

[0022] (4) Reduce skill dependence and achieve standardized production: The semi-automated mode achieves standardized operation through preset logic, reduces the dependence on the experience of operators, and novices can be put to work after short-term training. Moreover, the processing quality is stable and is not affected by the difference in personnel skills, which facilitates the realization of standardized production management.

[0023] (5) Strong adaptability and wide range of applications: By manually adjusting the height of the slide rail, the horizontal position of the telescopic arm and the tilt angle, it can adapt to cones of different sizes and structures (including moving cones and fixed cones). Especially in the curved transition area, it can effectively avoid missing or repeated hammering. Its adaptability is better than existing simple mechanical hammering equipment.

[0024] (6) Dual-mode installation design, taking into account both scenario adaptation and cost optimization: The fully manual mode is driven by a telescopic handwheel, eliminating the need for a motor and automated control system. It has a simple structure, low manufacturing cost, and can be operated without electricity, making it suitable for small-batch, simple cone processing or temporary operation scenarios; the semi-automatic mode uses a telescopic motor in conjunction with an automated control system to achieve automatic hammering, adapting to the needs of large-scale production; the two drive methods have a unified interface, and only one type is installed on the same equipment, which avoids structural redundancy caused by the coexistence of two systems and facilitates upgrades and modifications according to production needs in the future. While improving the flexibility of scenario adaptation, it reduces the overall complexity and manufacturing cost of the equipment.

[0025] (7) Select one installation design to reduce equipment complexity: The fully manual mode omits the motor and control system, reducing manufacturing costs and is suitable for low-cost scenarios; the semi-automatic mode achieves automation through a dedicated motor. The interface of the two drive methods is unified, which is convenient for later upgrades and modifications according to needs, and improves the economy and flexibility of the equipment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the practical machining moving cone. Figure 2 This is a schematic diagram of the overall structure of the machined fixed cone. Figure 3 This is a schematic diagram of the lower structure of the cone rotation mechanism of the present invention; Figure 4 : This is a schematic diagram of the clamping component structure of the present invention; Figure 5 This is a schematic diagram of the clamping component fixing block and clamping screw structure of the present invention; Figure 6 This is a schematic diagram of the movable block structure of the clamping component of the present invention; Figure 7 : This is a schematic diagram of the slide rail structure of the present invention; Figure 8 This is a schematic diagram of the slider and turntable structure of the present invention; Figure 9 This is an exploded view of the turntable structure of the present invention; Figure 10 : This is a schematic diagram of the telescopic arm and pneumatic hammer structure of the present invention.

[0027] Figure 11 This is a schematic diagram of the cross-sectional structure of the turntable of the present invention; Figure 12 This is a schematic diagram of the exploded cross-section structure of the turntable of the present invention.

[0028] In the diagram: 10-Conical rotation mechanism; 11-Plate; 12-Turntable motor; 13-Tightening assembly; 131-Plate slide rail; 132-Fixing block; 1321-Screw limit groove; 133-Moving block; 1331-Threaded groove; 134-Tightening screw; 14-Plate bracket; 15-External gear rotary support bearing; 16-Reducer; 17-Pin gear; 20-Hammer arm drive mechanism; 21-Column; 22-Column sleeve; 221-Tightening screw; 23-Slide rail; 24-Slider; 25-Hand chain hoist; 2 6-Translation screw; 27-Translation handwheel; 28-Square sleeve; 29-Translation screw nut; 30-Turntable; 31-Fixed plate; 32-Center disc; 33-Moving disc; 34-Turntable bolt; 35-Plate; 40-Telescopic arm; 41-Fixed arm; 42-Moving arm; 43-Telescopic screw; 44-Telescopic motor; 45-Telescopic limit switch; 46-Limit switch upper stop; 47-Limit switch lower stop; 48-Telescopic arm slide; 49-Telescopic screw nut; 50-Air hammer; 60-Moving cone; 70-Fixed cone. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1 to 12 The specific structure, component models, and installation methods of this invention are described in detail below: (I) Specific Structural Embodiments of the Invention

[0030] The core structure of this cone crusher cone working face hammer hardening device includes a cone rotation mechanism 10, a hammer arm drive mechanism 20, a turntable 30, a telescopic arm 40, and a pneumatic hammer 50. The specific composition, structure, and optimized implementation of each part are as follows: 1. Cone rotation mechanism 10 The cone rotation mechanism 10 is used to support and drive the cone (moving cone 60 or fixed cone 70) of the cone crusher to rotate, ensuring that the working surface is impacted evenly. Its composition and optimized embodiment are as follows: Pallet 11: Made of welded steel plate, with a diameter of 2-4m (suitable for cones of different sizes); the bottom of pallet 11 is connected to pallet support 14 through external tooth slewing bearing 15 (80 teeth) to achieve stable rotation.

[0031] Turntable motor 12: A three-phase asynchronous motor is selected. It outputs power through reducer 16. The pinion 17 (12 teeth) on the output shaft of reducer 16 meshes with the gear plate of the external gear rotary support bearing 15, driving the tray 11 to rotate. The rotation speed can be adjusted to 0.5-2r / min.

[0032] Tightening assembly 13: Four groups are arranged in a ring around the center of the tray 11. Each group includes a tray slide 131, a fixed block 132, a movable block 133 and a tightening screw 134.

[0033] Pallet chute 131: Machined part of 45# steel, 500mm in length, radially fixed to pallet 11.

[0034] Fixed block 132: Installed on tray slide 131 by M12 bolts, it can slide and adjust radially. Fixed block 132 is provided with inverted T-shaped groove, and screw limit groove 1321 is provided in the inverted T-shaped groove.

[0035] The movable block 133 is made of 40Cr material, with an inverted T-shaped structure that matches the inverted T-shaped groove of the fixed block 132, and a threaded groove 1331 at the bottom.

[0036] Tightening screw 134: Tr30×6 trapezoidal screw (300mm in length), which engages with the threaded groove 1331 of the movable block 133 through the screw limiting groove 1321 of the fixed block 132. When rotated, it pushes the movable block 133 to move radially and clamps the cone (moving cone 60 or fixed cone 70).

[0037] 2. Hammer arm drive mechanism 20 The hammer arm drive mechanism 20 is used to adjust the height and horizontal position of the air hammer 50 to ensure precise alignment with the working surface of the cone. Its composition and optimized embodiment are as follows: Column 21: Made of φ200×10mm seamless steel pipe (height 3-5m), vertically fixed to the concrete foundation, with chrome plating on the surface for rust prevention; Column sleeve 22 is fitted on the column 21, and the two are fitted together to allow for up and down sliding.

[0038] Slide rail 23: Made of 10# channel steel (3-5m in length), with parallel translation screws 26 installed in the groove, and both ends rotatably connected to the channel steel through bearings.

[0039] Hand chain hoist 25: A manual hoist (lifting capacity 5t, lifting height 6m) is selected and installed on the top of the column 21. It is connected to both ends of the slide rail 23 by a chain and is used to manually adjust the height of the slide rail 23. The column sleeve 22 is equipped with an M20 tightening screw 221 on the side, which is tightened and locked after the height is adjusted.

[0040] Slider 24: includes a square sleeve 28 and an embedded translation screw nut 29 (matching the translation screw 26); the translation handwheel 27 is keyed to one end of the translation screw 26, and rotating the handwheel drives the slider 24 to move horizontally along the slide rail 23.

[0041] 3. Turntable 30 The turntable 30 is used to adjust the tilt angle of the telescopic boom to match the curvature of the conical working surface. Its composition and optimized embodiment are as follows: The mounting plate 31 is a 45# steel machined part (300mm in diameter) with a central annular step (10mm in height) which is fixed to the side of the slider 24 by bolts.

[0042] The central disc 32 is made of 45# steel (100mm in diameter) and is embedded inside the annular step of the fixed disc 31 to reduce friction and wear during adjustment.

[0043] Moving plate 33: 45# steel part (diameter 250mm), welded to the fixed arm 41 of the telescopic arm through a pad 35, and connected to the central disc 32 through four evenly distributed turntable bolts 34 (M16 high-strength bolts, grade 8.8); the four turntable bolts 34 are located inside the stepped ring and do not contact or connect with the fixed plate 31. Loosening the turntable bolts 34 can adjust the angle of the telescopic arm 40, and tightening them can lock them in place by the step of the moving plate 33 and the fixed plate 31.

[0044] 4. Telescopic boom 40 The telescopic boom 40 is used to control the radial extension and retraction of the pneumatic hammer to achieve full coverage of the working surface. Its composition and optimized embodiment are as follows: Fixed arm 41: a long strip steel plate (150mm wide, 2-3m long), with a telescopic arm slide groove 48 in the middle; the top of the fixed arm 41 is equipped with a telescopic screw 43 (the length of which matches the fixed arm) through a bearing seat.

[0045] Mobile arm 42: a long strip steel plate (120mm wide), the mobile arm 42 is slidably installed in the telescopic arm slide groove 48, the telescopic screw nut 49 is fixedly connected to the side, and the air hammer 50 is installed at the lower end.

[0046] Drive components: Fully manual mode: The upper end of the telescopic screw 43 is connected to the telescopic handwheel (made of 45# steel, 150mm in diameter) via a key, without motor or automatic control components.

[0047] Semi-automatic mode: The upper end of the telescopic screw 43 is connected to the telescopic motor 44 (model 110HS20 stepper motor) via a coupling, and an automatic control system (including microprocessor, limit switch, etc.) is installed. The telescopic handwheel is not installed.

[0048] The transmission structure interfaces of the two modes are compatible, and the mode can be switched by replacing the drive components. The two drive methods cannot coexist on the same device.

[0049] Travel control: In semi-automatic mode, the telescopic screw nut 49 is equipped with a telescopic travel switch 45 (LX19-001 travel switch), and the telescopic arm slide 48 is equipped with upper stop block 46 and lower stop block 47 at both ends of the travel switch. When triggered, the telescopic movement stops.

[0050] 5. Pneumatic hammer An air hammer is used to harden the working surface of a cone by hammering. An optimized embodiment of this method is as follows: The air hammer 50 is fixed to the lower end of the movable arm 42 via a flange; the hammer head diameter is 20-30mm (depending on the cone material), and the surface of the hammer head is overlaid with a WC hard alloy layer (3mm thick) to improve wear resistance. The impact frequency of the air hammer 50 is adjustable from 100-200 times / minute, and the impact energy is 50-100J.

[0051] (II) Working principle and operation steps

[0052] 1. Working principle This equipment achieves hardening of the working surface of the cone (moving cone 60 or fixed cone 70) through the coordinated action of the cone rotation mechanism 10, hammer arm drive mechanism 20, turntable 30, telescopic arm 40 and air hammer 50: The cone rotation mechanism 10 drives the cone to rotate at a uniform speed, ensuring that each area of ​​the working surface is hit in sequence; The hammer arm drive mechanism 20 adjusts the height and horizontal position of the air hammer 50, and the turntable adjusts the tilt angle of the telescopic arm 40 so that the hammer head of the air hammer 50 fits against the working surface of the cone. The telescopic boom 40 controls the movement of the pneumatic hammer 50 in fully manual or semi-automatic mode, and in conjunction with the cone rotation, it achieves full coverage hammering of the working surface. In fully manual mode, the movement of the air hammer 50 is controlled by manually operating the telescopic handwheel; in semi-automatic mode, the movement of the air hammer 50 is controlled by the microprocessor (STM32F103ZET6 microcontroller) according to preset logic (the tray rotates 1-3 times and then extends and retracts 2-3cm), which triggers the telescopic limit switch 45 and then stops automatically.

[0053] 2. Operating Procedures (1) Preliminary preparation ① Cone installation: Hoist the cone to be processed (moving cone 60 or fixed cone 70) to the center of the tray 11, rotate the tightening screws 134 of each tightening component 13, push the movable block 133 to move radially to clamp the cone, and ensure that the cone is concentric with the tray 11 and there is no shaking; ② Equipment inspection: Check the air hammer 50 air pressure (0.6-0.8MPa), whether all bolt connections (tightening screw 221, turntable bolt 34, etc.) are tight, and whether the circuit and air circuit are unobstructed.

[0054] (2) Fully manual mode operation ① Adjust position: Simultaneously operate the two hand chain hoists 25, adjust the height of the slide rail 23 until the hammer head of the air hammer 50 is close to the working surface of the cone, check the level of the slide rail 23 with a level, and tighten the top screw 221 to lock it. Rotate the translation handwheel 27 to move the slider 24 along the slide rail 23 until the air hammer 50 is aligned with the starting position of the working surface; Loosen the turntable bolt 34, rotate the telescopic arm 40 to make it parallel to the generatrix of the cone's working surface, bring the hammer head of the air hammer 50 close to the working surface, and tighten the turntable bolt 34 to lock the angle.

[0055] ②Start the operation: Turn on the turntable motor 12 and adjust the speed of tray 11 to 1-2 r / min; Start the air hammer at speed 50 and begin hammering; Every 1-3 rotations of the tray 11, manually rotate the telescopic handwheel to extend / retract the movable arm 42 by 2-3cm (matching the diameter of the hammer head) to ensure full coverage of the work surface.

[0056] ③ Operation stopped: After visually confirming that all the work surface has been hammered, turn off the air hammer 50 and the turntable motor 12, and rotate the telescopic handwheel in the opposite direction to reset the movable arm 42.

[0057] (3) Semi-automatic mode operation ① Parameter settings: Input parameters (tray rotation 1-3 times, extension distance 2-3cm, air hammer frequency 100-200 times / minute) into the microprocessor via the keyboard, and confirm the parameters on the display; ② Adjust position: Same as step 1 in full manual mode (height, horizontal position, tilt angle adjustment); ③Automatic operation: Press the "Automatic Start" button, the turntable motor 12 drives the cone to rotate, and the air hammer 50 starts; The microprocessor controls the telescopic motor 44 according to preset logic, which drives the movable arm 42 to extend and retract automatically, and together with the rotation of the cone, achieves full-coverage hammering. When the boom 42 triggers the telescopic limit switch 45, the equipment automatically stops the telescopic motor 44 and the air hammer 50, completing the operation.

[0058] (4) End of assignment ① Turn off the main power and air supply of the equipment, loosen the tightening screw 134 of the tightening assembly 13, and hoist the cone off the machine; ② Clean the iron filings from the head of the pneumatic hammer 50, check all moving parts (telescopic lead screw 43, translation lead screw 26, etc.) and add grease to ensure smooth operation next time.

[0059] The above specific embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention do not depart from the essence and scope of the technical solutions of the present invention.

Claims

1. A hammer-hardening device for the working surface of a cone crusher cone, characterized in that, It includes a cone rotation mechanism (10), a hammer arm drive mechanism (20), a turntable (30), a telescopic arm (40), and a pneumatic hammer (50). The cone rotation mechanism (10) includes a tray support (14) and a tray (11) driven to rotate by a turntable motor (12). The tray (11) is provided with a cone fixing structure. The tray support (14) is connected to the tray (11) through an external tooth slewing bearing (15) or an internal tooth slewing bearing. The turntable motor (12) is connected to the gear plate of the external tooth slewing bearing (15) or the internal tooth slewing bearing through a pinion (17) on the output shaft of the reducer (16). The hammer arm drive mechanism (20) includes two columns (21), with column sleeves (22) that can slide up and down on the columns (21), and a slide rail (23) horizontally connected between the two column sleeves (22). A translation screw (26) is provided inside the slide rail (23), and a slider (24) that can slide along the slide rail (23) is provided. The slider (24) cooperates with the translation screw (26) through the translation screw nut (29). The telescopic arm (40) includes a fixed arm (41) and a movable arm (42). The movable arm (42) is slidably engaged with the fixed arm (41) through the telescopic arm slide groove (48). The movable arm (42) is driven by a telescopic handwheel or a telescopic motor (44). One of the two driving methods is installed on the top of the fixed arm (41). The turntable (30) is located between the slider (24) and the fixed arm (41) for adjusting and locking the angle of the telescopic arm (40); The air hammer (50) is installed at the lower end of the movable arm (42) and is used to hammer the working surface of the cone.

2. The cone crusher cone working surface hammer hardening device according to claim 1, characterized in that, The conical fixing structure includes 3-5 clamping components (13) arranged in a ring around the center of the tray (11); the clamping components (13) include two parallel tray grooves (131) that are radially fixed to the tray (11), and the tray grooves (131) are provided with radially adjustable fixing blocks (132), and the fixing blocks (132) are provided with sliding movable blocks (133), which are driven to move radially by clamping screws (134).

3. The cone crusher cone working surface hammer hardening device according to claim 1, characterized in that, The upper end of the column (21) of the hammer arm drive mechanism (20) is provided with a hand chain hoist (25), which is connected to both ends of the slide rail (23) by a chain; the side of the column sleeve (22) is provided with a tightening screw (221); the slide rail (23) is provided with a translation screw (26), one end of the translation screw (26) is connected to a translation handwheel (27), and the slider (24) is engaged with the translation screw (26) through the translation screw nut (29).

4. The cone crusher cone working surface hammer hardening device according to claim 1, characterized in that, The turntable (30) includes a fixed plate (31), a central disc (32) and a moving plate (33); the fixed plate (31) is fixed to the slider (24), the central disc (32) and the moving plate (33) are connected by four evenly distributed turntable bolts (34), and the moving plate (33) is fixed to the fixed arm (41).

5. The cone crusher cone working surface hammer hardening device according to claim 1, characterized in that, The telescopic arm (40) has a telescopic screw (43) on its fixed arm (41), and the telescopic screw (43) is engaged with the telescopic screw nut (49) on the movable arm (42). In the fully manual mode, the upper end of the telescopic screw (43) is adapted to connect to the telescopic handwheel. In the semi-automatic mode, the upper end of the telescopic screw (43) is adapted to connect to the telescopic motor (44). The telescopic handwheel and the telescopic motor (44) are mutually exclusive installation components, and only one type is installed on the same device.

6. The cone crusher cone working surface hammer hardening device according to claim 1, characterized in that, In semi-automatic mode, an automated control system is also included, which includes a microprocessor, a display and a keyboard; the telescopic motor (44) is a servo motor or a stepper motor, which is connected to the microprocessor through a drive module; the telescopic screw nut (49) is provided with a telescopic limit switch (45), and the slide is provided with an upper limit switch stop (46) and a lower limit switch stop (47); in fully manual mode, there is no automated control system, and the telescopic distance of the movable arm (42) is manually adjusted by telescopic handwheel.

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