Multifunctional multi-head grinding machine

Abstract

The utility model discloses a multifunctional multi-head polisher, which relates to the field of polishers and comprises a shell, a cavity is arranged inside the shell, three movable shafts are connected inside the cavity through sealing bearings, a heat dissipation component is further arranged inside the cavity, and the heat dissipation component comprises a fixed plate mounted above the inside of the cavity. By arranging the heat dissipation assembly, when the movable shaft rotates, the movable shaft drives the driving bevel gear to rotate and then drives the driven bevel gear to rotate, when the driven bevel gear rotates, the driven bevel gear drives the rotating shaft to rotate, the rotating shaft rotates and then drives the fan blades to rotate, and the fan blades accelerate the circulation speed of surrounding air; and external air enters the cavity through the air inlet, and heat generated by working of the motor and heat generated by meshing of the gears can be discharged through the heat dissipation opening, so that heat dissipation of the motor is facilitated, the situation that a large amount of heat is accumulated in the shell and is difficult to dissipate is prevented, and the service life of the motor is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of grinding machines, specifically a multi-functional multi-head grinding machine. Background Technology

[0002] A grinding machine is a commonly used mechanical device, mainly used for surface grinding and polishing of workpieces. The working principle of a grinding machine is based on the movement of a rotating grinding disc or grinding wheel. The grinding and polishing effect is achieved through the interaction between the abrasive and the workpiece surface. Grinding machines are usually driven by a motor, which converts electrical energy into mechanical energy. The motor drives the grinding disc or grinding wheel to rotate at high speed, generating a large torque to grind the workpiece surface.

[0003] Existing multi-head grinders typically have three grinding discs. Most of these discs are driven by a motor to rotate a drive gear, which in turn rotates by meshing with gears on three shafts. The motor generates heat during operation, and the meshing of the gears also generates heat. This heat accumulates inside the grinder's housing and is difficult to dissipate. Over time, this accelerates the motor's wear and tear, reduces its lifespan, and affects the grinder's grinding efficiency. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a multi-functional multi-head grinder to solve the technical problem that the heat generated by the motor during long-term operation is difficult to dissipate from the housing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-functional multi-head grinder, comprising a housing, the interior of which is provided with a cavity, and three movable shafts connected inside the cavity via sealed bearings. A heat dissipation assembly is also provided inside the cavity, comprising a fixed plate mounted above the cavity interior, a drive bevel gear sleeved on the outer wall of one of the movable shafts, an air inlet on one side of the housing, and a heat dissipation vent on the other side of the housing. Dustproof screens are installed inside both the air inlet and the heat dissipation vent. A bearing seat is installed at the bottom of the fixed plate, and a rotating shaft is connected inside the bearing seat via a bearing. A driven bevel gear is installed at one end of the rotating shaft, and a fan blade is installed at the other end. A connecting arm is rotatably connected to the top of the housing. Two positioning plates are provided on the outer surface and back of the connecting arm, and a mounting bracket is fitted inside the positioning plates. Locking bolts extending into the mounting bracket are installed on the positioning plates. A push bracket is provided at the top of the mounting bracket.

[0006] By adopting the above technical solution, when the driven bevel gear rotates, it will drive the shaft to rotate, and the shaft will drive the fan blades to rotate. The fan blades will accelerate the circulation speed of the surrounding air, thereby facilitating the heat dissipation of the motor.

[0007] Furthermore, a placement plate is installed at the bottom of the mounting bracket, and a vacuum cleaner is bolted to the placement plate, with a vacuum hose connected to the suction end of the vacuum cleaner.

[0008] By adopting the above technical solution, when vacuuming is required, the vacuum cleaner can be started, and the vacuum cleaner can extract the dust generated during the polishing process through the vacuum hose.

[0009] Furthermore, the bottom of the housing is provided with a bottom shell, a cleaning brush is provided inside the bottom shell, and a dust suction port is provided on one side of the bottom shell.

[0010] By adopting the above technical solution, the suction port and suction hose can perform dust suction, preventing a large amount of dust from being dispersed in the air.

[0011] Furthermore, the suction port is threadedly connected to the suction hose, and the bottom of the placement plate is equipped with casters.

[0012] By adopting the above technical solution, it is convenient to connect the vacuum hose to the vacuum port, and the omnidirectional wheels facilitate the movement of the placement board.

[0013] Furthermore, the bottom ends of the three movable shafts extend into the bottom shell and are fitted with grinding discs, and driven gears are installed on the outer walls of the three movable shafts.

[0014] By adopting the above technical solution, the driven gear will rotate, which will drive the movable shaft to rotate, and then drive the grinding disc to rotate, so that the grinding disc can perform grinding.

[0015] Furthermore, a motor is installed above the interior of the cavity, and the output end of the motor is connected to a drive gear, which meshes with three driven gears.

[0016] By adopting the above technical solution, when grinding is required, the motor can be started. The motor can drive the drive gear to rotate, and the drive gear can drive the driven gear to rotate.

[0017] Furthermore, the mounting bracket is detachably connected to the positioning plate via locking bolts, and the connecting arm is located inside the mounting bracket.

[0018] By adopting the above technical solution, it is convenient to disassemble and assemble the mounting bracket, while the locking bolts can lock and limit the mounting bracket.

[0019] Furthermore, the top of the connecting arm is provided with a handle, and the outer wall of the handle is fitted with an anti-slip sleeve.

[0020] By adopting the above technical solution, it is convenient for staff to hold the handle, and the anti-slip sleeve can play an anti-slip role.

[0021] Furthermore, the driving bevel gear meshes with the driven bevel gear, and the diameter of the driving bevel gear is larger than the diameter of the driven bevel gear.

[0022] By adopting the above technical solution, when the driving bevel gear rotates, it will drive the driven bevel gear to rotate, then drive the shaft to rotate, and then drive the fan blade to rotate.

[0023] Furthermore, the positioning plate is L-shaped.

[0024] By adopting the above technical solution, it is convenient to insert the mounting bracket, so as to position the mounting bracket and facilitate subsequent locking and limiting of the mounting bracket.

[0025] In summary, the present invention has the following main advantages:

[0026] 1. This utility model is equipped with a heat dissipation component. When the movable shaft rotates, it will drive the active bevel gear to rotate, which in turn drives the driven bevel gear to rotate. When the driven bevel gear rotates, it will drive the rotating shaft to rotate. After the rotating shaft rotates, it will drive the fan blades to rotate. The fan blades will accelerate the circulation speed of the surrounding air and allow the outside air to enter the cavity through the air inlet. The heat generated by the motor operation and the heat generated by the meshing between the gears will be discharged through the heat dissipation port, which will facilitate the heat dissipation of the motor and prevent a large amount of heat from accumulating inside the housing and being difficult to dissipate, thereby extending the service life of the motor.

[0027] 2. By incorporating a dustproof net, this utility model can prevent external dust from entering the cavity through the air inlet or heat dissipation vent, thereby improving the dustproof effect and preventing a large amount of dust from accumulating on the motor or gears. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the shell structure of this utility model;

[0030] Figure 3 This is a bottom view of the shell structure of this utility model;

[0031] Figure 4 This is a schematic diagram of the front section structure of the shell of this utility model;

[0032] Figure 5 This is a schematic diagram of the cross-sectional structure of the shell of this utility model;

[0033] Figure 6 This is a schematic diagram of the grinding disc structure of this utility model.

[0034] In the diagram: 1. Housing; 2. Connecting arm; 3. Handle; 4. Bottom shell; 5. Cleaning brush; 6. Grinding disc; 7. Movable shaft; 8. Locking bolt; 9. Heat dissipation assembly; 901. Air inlet; 902. Heat dissipation vent; 903. Dust filter; 904. Driving bevel gear; 905. Driven bevel gear; 906. Fixing plate; 907. Bearing seat; 908. Rotating shaft; 909. Fan blade; 910. Sealing ring; 10. Mounting bracket; 11. Push bracket; 12. Vacuum cleaner; 13. Placement plate; 14. Casters; 15. Vacuum hose; 16. Vacuum inlet; 17. Motor; 18. Driving gear; 19. Driven gear; 20. Cavity; 21. Positioning plate. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The embodiments of this utility model will be described below based on its overall structure.

[0037] Example 1:

[0038] A multi-functional multi-head grinder, such as Figures 1-6 As shown, the device includes a housing 1, with a cavity 20 inside the housing 1. Three movable shafts 7 are connected inside the cavity 20 via sealed bearings. A heat dissipation assembly 9 is also installed inside the cavity 20. A connecting arm 2 is rotatably connected to the top of the housing 1 via a rotating shaft. Two positioning plates 21 are provided on the outer surface and back of the connecting arm 2. A mounting bracket 10 is fitted inside the positioning plate 21, and a locking bolt 8 extending into the mounting bracket 10 is installed on the positioning plate 21. A push bracket 11 is provided on the top of the mounting bracket 10.

[0039] See Figures 2-6 The bottom of the housing 1 is provided with a bottom shell 4, and a cleaning brush 5 is provided inside the bottom shell 4. The bottom ends of three movable shafts 7 extend into the bottom shell 4 and are equipped with a grinding disc 6. Each of the three movable shafts 7 has a driven gear 19 installed on its outer wall. When the driven gear 19 rotates, it will drive the movable shaft 7 to rotate, and then drive the grinding disc 6 to rotate so that the grinding disc 6 can perform grinding. A motor 17 is installed at the top inside the cavity 20. The output end of the motor 17 is connected to a drive gear 18, and the drive gear 18 meshes with the three driven gears 19. When grinding is required, the motor 17 can be started. The operation of the motor 17 can drive the drive gear 18 to rotate, and the drive gear 18 can drive the driven gears 19 to rotate.

[0040] See Figures 1-4The mounting bracket 10 is detachably connected to the positioning plate 21 via locking bolts 8. The connecting arm 2 is located inside the mounting bracket 10, which facilitates the assembly and disassembly of the mounting bracket 10. The locking bolts 8 can lock and limit the mounting bracket 10. The top of the connecting arm 2 is provided with a handle 3. The outer wall of the handle 3 is fitted with an anti-slip sleeve, which makes it convenient for workers to hold the handle 3. The anti-slip sleeve can play an anti-slip role. The positioning plate 21 is L-shaped, which facilitates the insertion of the mounting bracket 10 to position the mounting bracket 10, and thus facilitates the subsequent locking and limiting of the mounting bracket 10.

[0041] Specifically, the heat dissipation assembly 9 includes a fixed plate 906 installed above the interior of the cavity 20, a driving bevel gear 904 sleeved on the outer wall of a movable shaft 7, an air inlet 901 on one side of the housing 1, and a heat dissipation vent 902 on the other side of the housing 1. Dust filters 903 are installed inside both the air inlet 901 and the heat dissipation vent 902. A bearing seat 907 is installed at the bottom of the fixed plate 906. A rotating shaft 908 is connected inside the bearing seat 907 via a bearing. A driven bevel gear 905 is installed at one end of the rotating shaft 908, and a fan blade 90 is installed at the other end of the rotating shaft 908. 9. When the driven bevel gear 905 rotates, it will drive the rotating shaft 908 to rotate. After the rotating shaft 908 rotates, it will drive the fan blade 909 to rotate. The fan blade 909 will accelerate the circulation speed of the surrounding air, thereby facilitating the heat dissipation of the motor 17. The driving bevel gear 904 meshes with the driven bevel gear 905. The diameter of the driving bevel gear 904 is larger than the diameter of the driven bevel gear 905. When the driving bevel gear 904 rotates, it will drive the driven bevel gear 905 to rotate, then drive the rotating shaft 908 to rotate, and then drive the fan blade 909 to rotate. A sealing ring 910 is provided between the movable shaft 7 and the cavity 20.

[0042] Example 2:

[0043] Based on the above embodiment one, since dust is generated during the polishing process, in order to avoid a large amount of dust being dispersed in the air, the polisher will have a dust suction function, which will be achieved by setting the following structure.

[0044] See Figures 1-3 The bottom of the mounting bracket 10 is equipped with a placement plate 13. A vacuum cleaner 12 is bolted to the placement plate 13, and the suction end of the vacuum cleaner 12 is connected to a vacuum hose 15. When vacuuming is required, the vacuum cleaner 12 can be started. The vacuum cleaner 12 can extract the dust generated during the polishing process through the vacuum hose 15. A suction port 16 is provided on one side of the bottom shell 4. The suction port 16 and the vacuum hose 15 can perform vacuuming to prevent a large amount of dust from being scattered in the air. The suction port 16 and the vacuum hose 15 are threadedly connected. The bottom of the placement plate 13 is equipped with casters 14, which facilitates the movement of the placement plate 13.

[0045] The working principle of this utility model is as follows: First, when using the grinder, the power supply can be turned on first, and then the mounting bracket 10 can be clipped onto the positioning plate 21. Next, the locking bolt 8 can be screwed into the positioning plate 21 and the mounting bracket 10 to install the mounting bracket 10. Then, the vacuum hose 15 can be connected to the vacuum port 16. When in use, the motor 17 can be started. The operation of the motor 17 can drive the drive gear 18 to rotate. The drive gear 18 can drive the driven gear 19 to rotate, and then drive the movable shaft 7 to rotate. The movable shaft 7 can then drive the grinding disc 6 to rotate so that the grinding disc 6 can perform grinding. During grinding, the vacuum cleaner 12 can be started to remove the dust generated during the grinding process. The operator can push the grinder to move through the push frame 11. When it is necessary to hold the handle 3 for grinding, the operator can remove the push frame 11 from the connecting arm 2 so that the operator can hold the handle 3 for grinding.

[0046] Simultaneously, when the movable shaft 7 rotates, it drives the active bevel gear 904 to rotate, which in turn drives the driven bevel gear 905 to rotate. When the driven bevel gear 905 rotates, it drives the rotating shaft 908 to rotate. After the rotating shaft 908 rotates, it drives the fan blade 909 to rotate. The fan blade 909 accelerates the circulation speed of the surrounding air and allows external air to enter the cavity 20 through the air inlet 901. The heat generated by the operation of the motor 17 and the heat generated by the meshing between the gears are discharged through the heat dissipation port 902, thus facilitating the heat dissipation of the motor 17. The dustproof net 903 can prevent external dust from entering the cavity 20 through the air inlet 901 or the heat dissipation port 902.

[0047] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A multi-functional multi-head grinder, comprising a housing (1), characterized in that: The housing (1) has an internal cavity (20). Three movable shafts (7) are connected inside the cavity (20) via sealed bearings. A heat dissipation assembly (9) is also provided inside the cavity (20). The heat dissipation assembly (9) includes a fixed plate (906) installed above the inside of the cavity (20), a drive bevel gear (904) sleeved on the outer wall of one of the movable shafts (7), an air inlet (901) on one side of the housing (1), and a heat dissipation vent (902) on the other side of the housing (1). Dustproof nets (903) are installed inside the air inlet (901) and the heat dissipation vent (902). The fixed plate (906) The bottom of the housing (1) is equipped with a bearing seat (907), and the bearing seat (907) is connected to a rotating shaft (908) through a bearing. One end of the rotating shaft (908) is equipped with a driven bevel gear (905), and the other end of the rotating shaft (908) is equipped with a fan blade (909). The top of the housing (1) is rotatably connected with a connecting arm (2). The outer surface and back of the connecting arm (2) are provided with two positioning plates (21), and a mounting bracket (10) is clamped in the positioning plate (21). A locking bolt (8) extending into the mounting bracket (10) is installed on the positioning plate (21). A push bracket (11) is provided on the top of the mounting bracket (10).

2. The multi-functional multi-head grinding machine according to claim 1, characterized in that: The mounting bracket (10) has a placement plate (13) installed at the bottom. A vacuum cleaner (12) is installed on the placement plate (13) by bolts, and the suction end of the vacuum cleaner (12) is connected to a vacuum hose (15).

3. The multi-functional multi-head grinding machine according to claim 2, characterized in that: The bottom of the housing (1) is provided with a bottom shell (4), a cleaning brush (5) is provided inside the bottom shell (4), and a dust suction port (16) is provided on one side of the bottom shell (4).

4. The multi-functional multi-head grinding machine according to claim 3, characterized in that: The suction port (16) is threadedly connected to the suction hose (15), and the bottom of the placement plate (13) is provided with casters (14).

5. A multi-functional multi-head grinding machine according to claim 1, characterized in that: The bottom ends of the three movable shafts (7) extend into the bottom shell (4) and are fitted with grinding discs (6). Driven gears (19) are installed on the outer walls of the three movable shafts (7).

6. A multi-functional multi-head grinding machine according to claim 5, characterized in that: A motor (17) is installed above the interior of the cavity (20). The output end of the motor (17) is connected to a drive gear (18), and the drive gear (18) meshes with three driven gears (19).

7. A multi-functional multi-head grinding machine according to claim 1, characterized in that: The mounting bracket (10) is detachably connected to the positioning plate (21) by locking bolts (8), and the connecting arm (2) is located inside the mounting bracket (10).

8. A multi-functional multi-head grinding machine according to claim 1, characterized in that: The top of the connecting arm (2) is provided with a handle (3), and the outer wall of the handle (3) is fitted with an anti-slip sleeve.

9. A multi-functional multi-head grinding machine according to claim 1, characterized in that: The driving bevel gear (904) meshes with the driven bevel gear (905), and the diameter of the driving bevel gear (904) is larger than the diameter of the driven bevel gear (905).

10. A multi-functional multi-head grinding machine according to claim 1, characterized in that: The positioning plate (21) is L-shaped.

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