A hob surface coating application device

Abstract

The utility model relates to shield cutter processing technical field especially relates to a kind of cutter surface coating coating device, including frame, mounting bracket, carousel, fixed mechanism, coating mechanism and drive mechanism, mounting bracket is fixedly installed in the upper end of frame, carousel rotation is connected in the upper end of frame, the upper end of carousel is evenly provided with four groups of fixed mechanism, coating mechanism is set in mounting bracket side, drive mechanism is set in the inside of frame, the both sides of mounting bracket are respectively fixedly installed with a group of connecting frame, heat preservation cover is fixedly installed below connecting frame, heat preservation cover is located above carousel, infrared heater is fixedly installed below the top surface of heat preservation cover inner chamber;The utility model can be reliably clamped and fixed to four cutters simultaneously by four groups of fixed mechanism, under the premise that carousel is stably rotated by drive mechanism, in combination with station zoning design, can realize the cycle operation of four stations parallel synchronous operation of loading and unloading operation, coating operation, preheating operation and temperature control cooling operation.

Description

Technical Field

[0001] This utility model relates to the field of shield tunnel cutter processing technology, and in particular to a cutter surface coating device. Background Technology

[0002] As the core equipment for modern tunnel construction, the tunneling efficiency of shield machines is closely related to the service life of key components. The cutterhead is the main tool for directly breaking rock and soil on the cutterhead. Under complex geological conditions, it is subjected to severe wear and impact. In order to improve the wear resistance of the cutterhead and extend its replacement cycle, high-performance coatings such as tungsten carbide and cermet are often prepared by laser cladding on the surface of the cutterhead. This surface strengthening technology can significantly improve the hardness and high temperature resistance of the cutterhead working face, and is an important technical means to ensure the efficient and continuous tunneling of shield machines.

[0003] Current roller coating equipment requires temporary shutdown when loading and unloading the rollers, which affects processing efficiency. At the same time, the coating strength of the rollers is highly dependent on the preheating of the substrate and the temperature control after coating. During the loading and unloading process, the large temperature fluctuations can easily affect the coating quality or even cause cracking.

[0004] Therefore, to address the aforementioned issues, a coating device for the surface of a roller cutter can be designed. This device employs a rotatable turntable structure with four sets of fixing mechanisms evenly arranged on it, each used to fix one of the four roller cutters. Through the workstation partitioning design, the four workstations—loading and unloading, coating, preheating, and temperature control and cooling—can operate synchronously without interference. This not only increases efficiency but also prevents the impact of temperature fluctuations during loading and unloading on the coating quality. Utility Model Content

[0005] To overcome the problems that current roller coating equipment requires temporary shutdown when picking up and placing rollers, which affects processing efficiency, and that the coating strength of rollers is highly dependent on substrate preheating and post-coating temperature control, large temperature fluctuations during the picking and placing process can easily affect coating quality or even cause cracking.

[0006] The technical solution of this utility model is as follows: a coating device for a roller cutter surface, comprising a frame, a mounting frame, a turntable, a fixing mechanism, a coating mechanism, and a driving mechanism. The mounting frame is fixedly installed on the upper end of the frame, and the turntable is rotatably connected to the upper end of the frame. Four sets of fixing mechanisms are evenly arranged on the upper end of the turntable. The coating mechanism is located on one side of the mounting frame, and the driving mechanism is located inside the frame. A set of connecting frames is fixedly installed on both sides of the mounting frame. A heat insulation cover is fixedly installed below the connecting frame. The heat insulation cover is located above the turntable, and an infrared heater is fixedly installed below the top surface of the inner cavity of the heat insulation cover.

[0007] Preferably, a coating mechanism is set up to perform coating operations on the roller cutters at the lower station. A connecting frame is set up to ensure the stable installation and positioning of the insulation cover. An infrared heater is set up to work in conjunction with the insulation cover to regulate the temperature of the inner cavity of the insulation cover, thereby preheating or post-coating heat control of the roller cutters passing through it, effectively avoiding coating quality fluctuations caused by sudden temperature changes. Four sets of fixing mechanisms are set up to reliably clamp and fix four roller cutters at the same time. Combined with the station zoning design, the four stations of loading and unloading, coating, preheating and temperature control and cooling can be operated in parallel and synchronously without interference. A drive mechanism is set up to drive the turntable to rotate stably at the top of the frame, thereby driving the four sets of fixing mechanisms to complete the cyclic station switching action.

[0008] Preferably, the fixing mechanism includes a U-shaped frame, an electric turntable, and a three-jaw chuck. The U-shaped frame is fixedly installed on the upper end of the turntable, the electric turntable is fixedly installed inside the U-shaped frame, and two sets of three-jaw chucks are provided. One set of three-jaw chucks is fixedly installed on the rotating end of the electric turntable, and the other set of three-jaw chucks is rotatably connected to the inside of the U-shaped frame.

[0009] Preferably, the coating mechanism includes an internally threaded mounting block, a guide rod, and a laser cladding head. The guide rod is fixedly installed inside the mounting frame, the internally threaded mounting block is slidably connected to the periphery of the guide rod, and the laser cladding head is fixedly installed on one side of the internally threaded mounting block.

[0010] Preferably, the coating mechanism includes a lead screw and a first motor. The first motor is fixedly installed on one side of the mounting frame, the lead screw is rotatably connected to the inside of the mounting frame, the lead screw passes through the internal threaded slider and is threadedly connected to it, and one end of the lead screw is fixedly connected to the output end of the first motor.

[0011] Preferably, the drive mechanism includes a second motor and a gearbox. The second motor is fixedly installed inside the frame, and the gearbox is fixedly installed inside the frame. The output end of the gearbox is connected and fixed to the turntable.

[0012] Preferably, the drive mechanism includes two sets of synchronous pulleys and a synchronous belt meshing with the periphery of the synchronous pulleys. The two sets of synchronous pulleys are respectively fixedly installed at the output end of the second motor and the input end of the gearbox.

[0013] Preferably, both the first motor and the second motor are servo motors.

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

[0015] The turntable is stably driven at the top of the frame by a second motor through two sets of synchronous pulleys and synchronous belts and a reduction gearbox. After the operator completes the loading and unloading of the roller cutter in a fixed mechanism, the roller cutter rotates with the turntable and enters the heat insulation cover for preheating, laying the foundation for subsequent coating operations. Then it rotates to the area below the laser cladding head, where the first motor drives the lead screw to rotate, causing the internal thread mounting block to slide smoothly along the guide rod, achieving precise coating of the roller cutter surface by the laser cladding head. After coating, the roller cutter continues to rotate with the turntable and enters another set of heat insulation covers for temperature control and cooling. Finally, it returns to the loading and unloading station where the operator replaces it with a new roller cutter. This achieves synchronous and independent cyclic operation of four stations. The cyclic operation mode not only improves efficiency but also effectively avoids the impact of temperature fluctuations during loading and unloading on coating quality, ensuring the stability of the processing process and the consistency of coating quality. Attached Figure Description

[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of the roller cutter surface coating device of this utility model;

[0017] Figure 2 The diagram shown is a second three-dimensional structural schematic of the roller cutter surface coating device of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional structural diagram of the internal structure of the heat insulation cover of the roller surface coating device of this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the fixing mechanism of the roller surface coating device of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Mounting frame; 201. Connecting frame; 202. Insulation cover; 203. Infrared heater; 3. Turntable; 401. U-shaped frame; 402. Electric turntable; 403. Three-jaw chuck; 501. Internal thread mounting block; 502. Guide rod; 503. Laser cladding head; 504. Lead screw; 505. First motor; 601. Second motor; 602. Gearbox; 603. Synchronous pulley; 604. Synchronous belt. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1 and Figure 3This utility model provides an embodiment: a coating device for a roller cutter surface, including a frame 1, a mounting frame 2, a turntable 3, a fixing mechanism, a coating mechanism, and a driving mechanism. The mounting frame 2 is fixedly installed on the upper end of the frame 1, and the turntable 3 is rotatably connected to the upper end of the frame 1. Four sets of fixing mechanisms are evenly arranged on the upper end of the turntable 3. The coating mechanism is located on one side of the mounting frame 2, and the driving mechanism is located inside the frame 1. A set of connecting frames 201 are fixedly installed on both sides of the mounting frame 2. A heat insulation cover 202 is fixedly installed below the connecting frame 201. The heat insulation cover 202 is located above the turntable 3, and an infrared heater 203 is fixedly installed below the top surface of the inner cavity of the heat insulation cover 202. By setting the coating mechanism, the roller cutter at the lower station can be coated. The operation is achieved by setting a connecting frame 201 to securely install and position the heat insulation cover 202. By setting an infrared heater 203 to work in conjunction with the heat insulation cover 202, the ambient temperature inside the heat insulation cover 202 can be regulated, thereby preheating or post-coating heat control of the roller cutters passing through it, effectively avoiding coating quality fluctuations caused by sudden temperature changes. By setting four sets of fixing mechanisms, four roller cutters can be reliably clamped and fixed at the same time. Combined with the workstation zoning design, the four workstations of loading and unloading, coating, preheating and temperature control and cooling can be operated in parallel and synchronously without interference. By setting a drive mechanism, the turntable 3 can be driven to rotate stably at the top of the frame 1, thereby driving the four sets of fixing mechanisms to complete the cyclic workstation switching action.

[0023] Please see Figure 1 and Figure 4 In this embodiment, the fixing mechanism includes a U-shaped frame 401, an electric turntable 402, and a three-jaw chuck 403. The U-shaped frame 401 is fixedly installed on the upper end of the turntable 3, and the electric turntable 402 is fixedly installed inside the U-shaped frame 401. Two sets of three-jaw chucks 403 are provided. One set of three-jaw chucks 403 is fixedly installed on the rotating end of the electric turntable 402, and the other set of three-jaw chucks 403 is rotatably connected to the inside of the U-shaped frame 401. The configuration of the U-shaped frame 401 enables reliable installation of the electric turntable 402 and the three-jaw chucks 403. The two sets of three-jaw chucks 403 can synchronously clamp and fix both ends of the hob. The electric turntable 402 can drive the hob to achieve stable and slow rotation through rotation drive.

[0024] Please see Figure 1 and Figure 2In this embodiment, the coating mechanism includes an internally threaded mounting block 501, a guide rod 502, and a laser cladding head 503. The guide rod 502 is fixedly installed inside the mounting frame 2, the internally threaded mounting block 501 is slidably connected to the periphery of the guide rod 502, and the laser cladding head 503 is fixedly installed on one side of the internally threaded mounting block 501. The coating mechanism includes a lead screw 504 and a first motor 505. The first motor 505 is fixedly installed on one side of the mounting frame 2, and the lead screw 504 is rotatably connected to the inside of the mounting frame 2. The lead screw 504 passes through the internally threaded slider and is threadedly connected to it. One end of the lead screw 504 is fixedly connected to the output end of the first motor 505. By setting the first motor 505 to drive the lead screw 504 to rotate, the internally threaded slider can be driven to slide stably along the guide rod 502, thereby driving the laser cladding head 503 to move and perform coating operations on the surface of the roller cutter. The driving mechanism includes... The second motor 601 and the gearbox 602 are fixedly installed inside the frame 1. The output end of the gearbox 602 is connected and fixed to the turntable 3. The drive mechanism includes two sets of synchronous pulleys 603 and synchronous belts 604 meshing around the synchronous pulleys 603. The two sets of synchronous pulleys 603 are respectively fixedly installed at the output end of the second motor 601 and the input end of the gearbox 602. Through the cooperation of the two sets of synchronous pulleys 603 and the synchronous belts 604, the second motor 601 can stably drive the turntable 3 to rotate at the upper end of the frame 1 through the gearbox 602, ensuring the continuity of multi-station cyclic operation. Both the first motor 505 and the second motor 601 are servo motors. The precise control characteristics of the servo motor can ensure the accuracy of the displacement control of the coating mechanism and the rotation of the turntable 3, improving the automation level of the overall device and the coating processing quality.

[0025] During operation, the second motor 601 drives the turntable 3 at the top of the frame 1 via the transmission cooperation of two sets of synchronous pulleys 603 and synchronous belt 604, and the gearbox 602, ensuring the continuity of multi-station cyclic operation.

[0026] Two sets of three-jaw chucks 403 achieve synchronous clamping and fixing of both ends of the hob, and the electric turntable 402 drives the hob to rotate stably and slowly. The four sets of fixing mechanisms can reliably clamp four hobs at the same time. Combined with the workstation partitioning design, the four workstations of loading and unloading, coating, preheating and temperature control and cooling can be operated in parallel and synchronously without interference.

[0027] After the operator completes the loading and unloading of the roller cutter in a set of fixed mechanisms, the roller cutter rotates with the turntable 3 and enters the heat preservation cover 202 for preheating treatment, laying the foundation for subsequent coating operations. Then it rotates to the bottom of the laser cladding head 503, and the first motor 505 drives the lead screw 504 to rotate, which drives the internal thread mounting block 501 to slide smoothly along the guide rod 502, so as to realize the precise coating operation of the laser cladding head 503 on the surface of the roller cutter.

[0028] After coating, the roller cutter continues to rotate with the turntable 3 and enters another set of heat insulation covers 202 for temperature control and cooling treatment. Finally, it returns to the loading and unloading station where the operator replaces it with a new roller cutter.

[0029] The cyclic operation mode improves efficiency while effectively avoiding the impact of temperature fluctuations during loading and unloading on coating quality, ensuring the stability of the processing and the consistency of coating quality.

[0030] Through the above steps, four sets of fixing mechanisms can simultaneously and reliably clamp and fix four roller cutters. Under the premise that the drive mechanism drives the turntable 3 to rotate stably, combined with the station partitioning design, the four stations of loading and unloading, coating, preheating and temperature control and cooling can be operated in parallel and synchronously in a cyclical manner. While improving efficiency, it effectively avoids the impact of temperature fluctuations during loading and unloading on coating quality, ensuring the stability of the processing process and the consistency of coating quality. This solves the problem that the previous roller cutter coating equipment required temporary shutdown when picking up and putting down the roller cutters, which affected the processing efficiency. At the same time, since the coating strength of the roller cutter is highly dependent on the preheating of the substrate and the temperature control after coating, large temperature fluctuations during picking up and putting down can easily affect the coating quality or even cause cracking.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A coating device for a roller cutter surface, comprising a frame (1), characterized in that: It also includes a mounting frame (2), a turntable (3), a fixing mechanism, a coating mechanism and a driving mechanism. The mounting frame (2) is fixedly installed on the upper end of the frame (1). The turntable (3) is rotatably connected to the upper end of the frame (1). Four sets of fixing mechanisms are evenly arranged on the upper end of the turntable (3). The coating mechanism is set on one side of the mounting frame (2). The driving mechanism is set inside the frame (1). A set of connecting frames (201) is fixedly installed on both sides of the mounting frame (2). A heat insulation cover (202) is fixedly installed below the connecting frame (201). The heat insulation cover (202) is located above the turntable (3). An infrared heater (203) is fixedly installed below the top surface of the inner cavity of the heat insulation cover (202).

2. The coating device for a hobbing cutter surface according to claim 1, characterized in that: The fixing mechanism includes a U-shaped frame (401), an electric turntable (402), and a three-jaw chuck (403). The U-shaped frame (401) is fixedly installed on the upper end of the turntable (3), the electric turntable (402) is fixedly installed inside the U-shaped frame (401), and there are two sets of three-jaw chucks (403). One set of three-jaw chucks (403) is fixedly installed on the rotating end of the electric turntable (402), and the other set of three-jaw chucks (403) is rotatably connected to the inside of the U-shaped frame (401).

3. The coating device for a hobbing cutter surface according to claim 1, characterized in that: The coating mechanism includes an internal thread mounting block (501), a guide rod (502), and a laser cladding head (503). The guide rod (502) is fixedly installed inside the mounting bracket (2). The internal thread mounting block (501) is slidably connected to the periphery of the guide rod (502). The laser cladding head (503) is fixedly installed on one side of the internal thread mounting block (501).

4. The coating device for a hobbing cutter surface according to claim 3, characterized in that: The coating mechanism includes a lead screw (504) and a first motor (505). The first motor (505) is fixedly installed on one side of the mounting bracket (2). The lead screw (504) is rotatably connected to the inside of the mounting bracket (2). The lead screw (504) passes through the internal threaded slider and is threadedly connected to it. One end of the lead screw (504) is fixedly connected to the output end of the first motor (505).

5. The coating device for a hobbing cutter surface according to claim 4, characterized in that: The drive mechanism includes a second motor (601) and a gearbox (602). The second motor (601) is fixedly installed inside the frame (1), and the gearbox (602) is fixedly installed inside the frame (1). The output end of the gearbox (602) is connected and fixed to the turntable (3).

6. The coating device for a hobbing cutter surface according to claim 5, characterized in that: The drive mechanism includes two sets of synchronous pulleys (603) and a synchronous belt (604) meshing with the periphery of the synchronous pulleys (603). The two sets of synchronous pulleys (603) are respectively fixedly installed at the output end of the second motor (601) and the input end of the gearbox (602).

7. The coating device for a hobbing cutter surface according to claim 5, characterized in that: Both the first motor (505) and the second motor (601) are servo motors.

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