Handheld pneumatic polishing device

Abstract

The utility model relates to the related technical field of polishing, in particular to a handheld pneumatic polishing device which comprises a speed regulating knob, a connecting ring, a valve disc seat, a first valve needle, a spring, a silencer, an exhaust hood, an air inlet connector, a second valve needle and a first fixing ring. According to the handheld pneumatic grinding device, through the arrangement of the rotor, the blades and the air cylinder, stable air flow is effectively generated, uniform working conditions are provided for grinding, then, workers can conveniently adjust the working speed and the air flow through the design of components such as the speed adjusting knob and the valve disc base, and therefore flexible control over the working efficiency is achieved, and the working efficiency is improved. Due to the arrangement of transmission systems such as a ball bearing and a transmission bevel gear, the stable operation and transmission efficiency of the machine are guaranteed, the stable positions and firm supporting of the main shaft and the grinding disc are guaranteed, the working precision and the product quality are further improved, the device is more convenient and faster to assemble, and the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to grinding, and in particular to a handheld pneumatic grinding device. Background Art

[0002] Polishing, in daily life, whether it is metal tools, wooden furniture or works of art, they all need to go through the process of polishing to show their best gloss and texture. Polishing can remove the roughness and defects on the surface, making the objects smoother and more delicate, and at the same time it can also improve the durability and service life of the objects. On a deeper level, polishing also symbolizes a spirit of excellence and continuous pursuit of excellence. It requires us to not only pursue surface perfection when doing things, but also pay attention to the internal quality and details. Only after repeated polishing and correction can we create a truly high-quality product that can stand the test of time. Pneumatic polishing is favored for its high efficiency and convenience. The use of compressed air to drive the polishing tool can not only reduce the burden on workers, but also improve the quality and efficiency of polishing. The total price of the pneumatic grinder includes equipment cost, maintenance cost and investment in the compressed air system. It is a cost-effective choice. Therefore, a handheld pneumatic polishing device is particularly needed.

[0003] However, existing handheld pneumatic grinding devices may cause hand fatigue and discomfort after long-term use. The vibration and noise may affect the operator's comfort and work efficiency. Some of them are inconvenient to maintain, which increases maintenance costs and time. Utility Model Content

[0004] The purpose of the utility model is to provide a handheld pneumatic grinding device to solve the problem that the existing handheld pneumatic grinding devices proposed in the above background technology will cause hand fatigue and discomfort after long-term use, and will affect the operator's comfort and work efficiency due to vibration and noise. Some of them are inconvenient to maintain, which increases the maintenance cost and time.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a handheld pneumatic grinding device, comprising a grinder, a rotor and a gasket, wherein the inner surface of the grinder is mounted with a rotor, the outer surface of the rotor is threadedly connected with a gasket, the outer surface of the gasket is sleeved with a front end plate, the inner surface of the rotor is connected with blades, and the outer surface of the rotor is sleeved with a cylinder;

[0006] A speed regulating knob is connected through the upper surface of the grinder, a connecting ring is sleeved on the lower surface of the speed regulating knob, a valve disc seat is connected to one side surface of the grinder, a first valve needle is connected to the inner surface of the valve disc seat, a spring is sleeved on the outer surface of the first valve needle, a muffler is fixedly connected to the outer side of the spring, an exhaust hood is threadedly connected to one side surface of the muffler, an air inlet joint is threadedly connected to one side surface of the exhaust hood, a second valve needle is connected to the lower surface of the speed regulating knob, and a first fixing ring is sleeved on the outer surface of the second valve needle.

[0007] Preferably, the blades are provided in multiple groups and are symmetrically distributed.

[0008] Preferably, the outer wall size of the first valve needle matches the inner wall size of the spring.

[0009] Preferably, a ball bearing is sleeved on one side surface of the grinder, a transmission bevel gear is sleeved on the outer side surface of the ball bearing, a first ring is sleeved on the outer side of the transmission bevel gear, a locking ring is sleeved on the outer side surface of the first ring, an elbow shell is threadedly connected to the locking ring, a grease nipple is connected to the inner side surface of the elbow shell, a ring is connected to the lower surface of the grease nipple, a bevel gear is connected to the inner side surface of the ring, a felt muffler is connected to the lower surface of the bevel gear, and a locking nut is connected to the lower surface of the felt muffler.

[0010] Preferably, the inner wall size of the locking ring matches the outer wall size of the elbow shell.

[0011] Preferably, the inner surface of the bevel gear is connected to a main shaft, the lower surface of the main shaft is sleeved with a counterweight block, the lower surface of the counterweight block is connected to a first fixing clamp, the lower surface of the first fixing clamp is fixedly connected to a seat, the lower surface of the seat is threadedly connected to a second fixing clamp, the lower surface of the second fixing clamp is connected to a second fixing ring, the lower surface of the second fixing ring is connected to a sleeve, and the lower surface is threadedly connected to a grinding disc.

[0012] Preferably, the outer surface of the second fixing ring is the same size as the outer wall of the sleeve.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the handheld pneumatic grinding device effectively generates a stable airflow through the arrangement of the rotor, blades and cylinder, providing uniform working conditions for grinding; secondly, the design of components such as the speed regulating knob and the valve disc seat enables workers to conveniently adjust the working speed and airflow flow, thereby realizing flexible control of work efficiency; the arrangement of the transmission system such as the ball bearing and the transmission bevel gear ensures the stable operation and transmission efficiency of the machine, ensures the stable position and firm support of the main shaft and the grinding disc, further improves the working precision and product quality; finally, the careful design of the size and connection method of each component makes the assembly of the device more convenient and quick, and increases the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the internal mechanism of the utility model;

[0016] In the figure: 1. grinder; 2. rotor; 3. gasket; 4. front end plate; 5. blade; 6. cylinder; 7. speed knob; 8. connecting ring; 9. valve disc seat; 10. first valve needle; 11. spring; 12. silencer; 13. exhaust hood; 14. air inlet joint; 15. second valve needle; 16. first fixing ring; 17. ball bearing; 18. transmission bevel gear; 19. first sleeve; 20. locking ring; 21. elbow shell; 22. grease fitting; 23. sleeve; 24. bevel gear; 25. felt silencer; 26. locking nut; 27. spindle; 28. counterweight; 29. ​​first fixing clamp; 30. seat; 31. second fixing clamp; 32. second fixing ring; 33. sleeve; 34. grinding disc. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-2 The utility model provides a technical solution: a handheld pneumatic grinding device, comprising a grinder 1, a rotor 2 and a gasket 3, the inner surface of the grinder 1 is mounted with the rotor 2, the outer surface of the rotor 2 is threadedly connected with the gasket 3, the outer surface of the gasket 3 is sleeved with a front end plate 4, the inner surface of the rotor 2 is connected with a blade 5, and the outer surface of the rotor 2 is sleeved with a cylinder 6;

[0019] A speed regulating knob 7 is connected through the upper surface of the grinder 1, a connecting ring 8 is sleeved on the lower surface of the speed regulating knob 7, a valve disc seat 9 is connected to one side surface of the grinder 1, a first valve needle 10 is connected to the inner surface of the valve disc seat 9, a spring 11 is sleeved on the outer surface of the first valve needle 10, a muffler 12 is fixedly connected to the outer side of the spring 11, an exhaust hood 13 is threadedly connected to one side surface of the muffler 12, an air inlet joint 14 is threadedly connected to one side surface of the exhaust hood 13, The lower surface of the speed regulating knob 7 is connected with a second valve needle 15, and the outer surface of the second valve needle 15 is sleeved with a first fixing ring 16. Through the arrangement of the speed regulating knob 7, the connecting ring 8, the valve disc seat 9, the first valve needle 10, the spring 11, the muffler 12, the exhaust cover 13, the air inlet joint 14, the second valve needle 15 and the first fixing ring 16, it is more convenient to use. First, the working speed of the grinder 1 is adjusted by the speed regulating knob 7. When the grinder 1 is started, the air inlet joint 14 sucks Air is introduced into the grinder 1 through the connecting ring 8. A rotor 2 is installed on the inner surface of the grinder 1. Blades 5 are connected to the inside of the rotor 2. When air enters, the blades 5 start to rotate to generate airflow. A gasket 3 is threadedly connected to the outer surface of the rotor 2. A front end plate 4 is sleeved on the outer surface of the gasket 3. These components ensure the stable flow of the airflow and transmit it to the working surface. The airflow enters the grinder 1 through the air inlet joint 14. On one side surface of the grinder, a valve disc seat 9 is connected to a first valve needle 10 to coordinate work to control the flow of airflow. A spring 11 is installed on the outer side of the first valve needle 10 to adjust the opening and closing of the valve. A muffler 12 is connected to the outer side of the spring 11. The muffler discharges exhaust gas through an exhaust hood 13 and keeps the operating environment quiet. The working efficiency and output of the grinder 1 are controlled by adjusting the flow and pressure of the airflow. The adjustment of the speed control knob 7 will affect the position of the second valve needle 15, thereby affecting the speed and intensity of the airflow.

[0020] Furthermore, the blades 5 are provided in multiple groups and are symmetrically distributed. Through the arrangement of the blades 5, the energy generated by the airflow can be controlled.

[0021] Furthermore, the outer wall size of the first valve needle 10 is consistent with the inner wall size of the spring 11 , and the arrangement of the spring 11 makes installation more convenient.

[0022] Furthermore, a ball bearing 17 is sleeved on one side surface of the grinder 1, and a transmission bevel gear 18 is sleeved on the outer side surface of the ball bearing 17, and a first sleeve 19 is connected to the outer side of the transmission bevel gear 18, and a locking ring 20 is sleeved on the outer side surface of the first sleeve 19, and an elbow shell 21 is threadedly connected to the outer side surface of the elbow shell 21, and a grease nozzle 22 is connected to the inner side surface of the elbow shell 21, and a sleeve 23 is connected to the lower surface of the grease nozzle 22, and a sleeve 23 is connected to the inner side surface of the sleeve 23. A bevel gear 24 is connected to the lower surface of the bevel gear 24. A felt muffler 25 is connected to the lower surface of the felt muffler 25, and a locking nut 26 is connected to the lower surface of the felt muffler 25. Through the arrangement of the ball bearing 17, the transmission bevel gear 18, the first sleeve 19, the locking ring 20, the elbow shell 21, the grease nozzle 22, the sleeve 23, the bevel gear 24, the felt muffler 25 and the locking nut 26, the use is more convenient. First, the grinder 1 A ball bearing 17 is installed on the surface of one side of the grinder 1 to ensure the stable operation of the transmission system. The outer surface of the ball bearing 17 is connected to a transmission bevel gear 18, which is driven by an external transmission power source to perform the operation of the grinder 1. The transmission bevel gear 18, the first sleeve ring 19, the locking ring 20, the elbow housing 21 and other components form the structural support of the transmission system and transmit the power to the next components. When the grinder 1 is working, the elbow housing 21 and the grease nipple 22, the grease nipple 22 and the sleeve ring 23, the sleeve ring 23 and the bevel gear 24 are responsible for transmitting power and ensuring its smooth transmission. A felt muffler 25 is connected to the lower surface of the bevel gear 24. The felt muffler 25 ensures the smooth operation of the grinder 1 by absorbing noise and vibration. Finally, a locking nut 26 is connected to the lower surface of the felt muffler 25 for fixing and stabilizing the entire device.

[0023] Furthermore, the inner wall size of the locking ring 20 is consistent with the outer wall size of the elbow shell 21. Through the arrangement of the elbow shell 21, the stabilization effect is further improved.

[0024] Furthermore, the inner surface of the bevel gear 24 is connected to the main shaft 27, and the lower surface of the main shaft 27 is sleeved with a counterweight 28. The lower surface of the counterweight 28 is connected to a first fixing clamp 29, and the lower surface of the first fixing clamp 29 is fixedly connected to a seat 30. The lower surface of the seat 30 is threadedly connected to a second fixing clamp 31, and the lower surface of the second fixing clamp 31 is connected to a second fixing ring 32, and the lower surface of the second fixing ring 32 is connected to a sleeve 33, and the lower surface of the grinding disc 34 is threadedly connected. The structure is clearer through the arrangement of the main shaft 27, the counterweight 28, the first fixing clamp 29, the seat 30, the second fixing clamp 31, the second fixing ring 32, the sleeve 33 and the grinding disc 34. First, the inner surface of the bevel gear 24 is connected to the main shaft 27, and the lower surface of the main shaft 27 is sleeved with a counterweight 28. The counterweight 28 helps to balance the operation of the grinder 1 and reduce vibration and instability. The counterweight 28 is located at The bottom of the grinder 1 is connected to the first fixing clamp 29 to ensure the stable position of the main shaft 27. The first fixing clamp 29 is then fixed to the bottom of the grinder 1 through a seat 30 to play a fixing and supporting role. The bottom of the seat 30 is connected to the second fixing clamp 31 by a thread. The bottom of the second fixing clamp 31 is connected to the second fixing ring 32, forming a structural frame supporting the main shaft 27 and the grinding disc 34. The bottom of the second fixing ring 32 is connected to the sleeve 33, thereby ensuring the stability of the entire device and the firmness of the structure. These components work together on the structural frame of the grinder 1 to ensure the stable operation of the main shaft 27 and the grinding disc, thereby improving the working efficiency and precision of the grinder 1. Finally, the lower surface of the sleeve 33 is threadedly connected to the grinding disc 34. The grinding disc 34 is the working part of the grinder and is responsible for grinding and processing materials. The grinder 1 can operate stably and complete the grinding task, thereby ensuring product quality and production efficiency.

[0025] Furthermore, the outer surface of the second fixing ring 32 and the outer wall size of the sleeve 33 are better stabilized by the arrangement of the sleeve 33 .

[0026] Working principle: First, the working speed of the grinder 1 is adjusted by the speed knob 7. When the grinder 1 is started, the air inlet joint 14 inhales air, and the air enters the grinder 1 through the connecting ring 8. The inner surface of the grinder 1 is installed with a rotor 2, and the inside of the rotor 2 is connected with a blade 5. When air enters, the blade 5 starts to rotate to generate airflow. The outer surface of the rotor 2 is threadedly connected with a gasket 3, and the outer surface of the gasket 3 is sleeved with a front end plate 4. These components ensure the stable flow of the airflow and transmit it to the working surface. The airflow enters the grinder 1 through the air inlet joint 14. On one side surface of the grinder, the valve disc seat 9 is connected to the first valve needle 10, and they work in coordination to control the flow of the airflow. A spring 11 is installed on the outside of the first valve needle 10 for adjusting the valve The opening and closing of the spring 11 is connected to the muffler 12 on the outside. The muffler discharges the exhaust gas through the exhaust hood 13 and keeps the operating environment quiet. The working efficiency and output of the grinder 1 are controlled by adjusting the flow rate and pressure of the airflow. The adjustment of the speed knob 7 will affect the position of the second valve needle 15, thereby affecting the speed and intensity of the airflow. First, a ball bearing 17 is installed on the surface of one side of the grinder 1 to ensure the stable operation of the transmission system. The outer surface of the ball bearing 17 is connected to the transmission bevel gear 18, which is driven by an external transmission power source to perform the work of the grinder 1. The transmission bevel gear 18, the first ring 19, the locking ring 20, the elbow housing 21 and other components form the structural support of the transmission system and transmit power to the next The components come from, when the grinder 1 is working, the elbow shell 21 and the grease nipple 22, the grease nipple 22 and the collar 23, the collar 23 and the bevel gear 24 are responsible for transmitting power and ensuring its smooth transmission. The lower surface of the bevel gear 24 is connected with a felt muffler 25. The felt muffler 25 ensures the smooth operation of the grinder 1 by absorbing noise and vibration. Finally, the lower surface of the felt muffler 25 is connected with a locking nut 26 for fixing and stabilizing the entire device. First, the inner surface of the bevel gear 24 is connected to the main shaft 27, and the lower surface of the main shaft 27 is provided with a counterweight 28. The counterweight 28 helps to balance the operation of the grinder 1 and reduce vibration and instability. The counterweight 28 is located at the bottom of the grinder 1 and is connected to the first fixing clamp 2 9, ensuring the stable position of the main shaft 27, the first fixing clamp 29 is fixed to the bottom of the grinder 1 through the seat 30, playing the role of fixing and supporting, the bottom of the seat 30 is connected to the second fixing clamp 31 through a thread, the bottom of the second fixing clamp 31 is connected to the second fixing ring 32, forming a structural frame supporting the main shaft 27 and the grinding disc 34, the bottom of the second fixing ring 32 is connected to the sleeve 33, thereby ensuring the stability of the entire device and the firmness of the structure, these components work together on the structural frame of the grinder 1, ensuring the stable operation of the main shaft 27 and the grinding disc, thereby improving the working efficiency and accuracy of the grinder 1, finally, the lower surface of the sleeve 33 is threadedly connected to the grinding disc 34, the grinding disc 34 is the working part of the grinder, responsible for grinding and processing materials,The grinding machine 1 can run stably and complete the grinding task, ensuring product quality and production efficiency.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A handheld pneumatic grinding device, comprising a grinder (1), a rotor (2) and a gasket (3), characterized in that: The inner surface of the grinding machine (1) is mounted with a rotor (2), the outer surface of the rotor (2) is threadedly connected with a gasket (3), the outer surface of the gasket (3) is sleeved with a front end plate (4), the inner surface of the rotor (2) is connected with blades (5), and the outer surface of the rotor (2) is sleeved with a cylinder (6); The upper surface of the grinder (1) is penetrated by a speed regulating knob (7), the lower surface of the speed regulating knob (7) is sleeved with a connecting ring (8), the one side surface of the grinder (1) is connected to a valve disc seat (9), the inner surface of the valve disc seat (9) is connected to a first valve needle (10), the outer surface of the first valve needle (10) is sleeved with a spring (11), the outer side of the spring (11) is fixedly connected to a muffler (12), the one side surface of the muffler (12) is threadedly connected to an exhaust hood (13), the one side surface of the exhaust hood (13) is threadedly connected to an air inlet joint (14), the lower surface of the speed regulating knob (7) is connected to a second valve needle (15), the outer surface of the second valve needle (15) is sleeved with a first fixing ring (16).

2. A handheld pneumatic grinding device according to claim 1, characterized in that: The blades (5) are arranged in multiple groups and are symmetrically distributed.

3. A handheld pneumatic grinding device according to claim 1, characterized in that: The outer wall size of the first valve needle (10) matches the inner wall size of the spring (11).

4. A handheld pneumatic grinding device according to claim 1, characterized in that: A ball bearing (17) is sleeved on one side surface of the grinder (1), a transmission bevel gear (18) is sleeved on the outer side surface of the ball bearing (17), a first sleeve (19) is sleeved on the outer side of the transmission bevel gear (18), a locking ring (20) is sleeved on the outer side surface of the first sleeve (19), an elbow shell (21) is threadedly connected to one side surface of the locking ring (20), a grease nipple (22) is connected to the inner side surface of the elbow shell (21), a sleeve (23) is connected to the lower surface of the grease nipple (22), an inner side surface of the sleeve (23) is connected to a bevel gear (24), a felt silencer (25) is connected to the lower surface of the bevel gear (24), a locking nut (26) is connected to the lower surface of the felt silencer (25).

5. A handheld pneumatic grinding device according to claim 4, characterized in that: The inner wall size of the locking ring (20) matches the outer wall size of the elbow housing (21).

6. A handheld pneumatic grinding device according to claim 4, characterized in that: The inner surface of the bevel gear (24) is connected to a main shaft (27), the lower surface of the main shaft (27) is sleeved with a counterweight (28), the lower surface of the counterweight (28) is connected to a first fixing clamp (29), the lower surface of the first fixing clamp (29) is fixedly connected to a seat (30), the lower surface of the seat (30) is threadedly connected to a second fixing clamp (31), the lower surface of the second fixing clamp (31) is connected to a second fixing ring (32), the lower surface of the second fixing ring (32) is connected to a sleeve (33), and the lower surface is threadedly connected to a grinding disc (34).

7. A handheld pneumatic grinding device according to claim 6, characterized in that: The outer surface of the second fixing ring (32) is the same as the outer wall size of the sleeve (33).

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