Air cylinder set of pneumatic belt sander

Abstract

The utility model discloses an air cylinder set of a pneumatic belt sander, and relates to the technical field of pneumatic belt sanders. Comprising an air cylinder set body, the air cylinder set body comprises a rotor and a plurality of blades distributed on a circle of the rotor at equal intervals, the rotor is sleeved with the air cylinder body, and the two sides of the ends, facing the inner wall of the air cylinder body, of the blades are chamfered; the ends, away from the inner wall of the air cylinder body, of the blades are arc-shaped and chamfered. The chamfers are additionally arranged at the contact positions of the blades and the air cylinder main body, so that friction between the blades and the air cylinder main body during rotation is reduced, the durability of the air cylinder main body is improved, the service life of the whole product is prolonged, and the performance of the belt sander is improved; and when the rotor rotates at a high speed, the blades are not easy to break and deform, so that the defects of the pneumatic belt sander in use are overcome, and the use requirements of users are met.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic sanding belt machines, in particular to a cylinder group of a pneumatic sanding belt machine. Background Art

[0002] Pneumatic belt grinder is a kind of grinding machine, which has the characteristics of light weight, safe use, high efficiency and low maintenance. It is widely used in metal processing and casting industries.

[0003] The pneumatic tool market has launched a variety of grinding belt machines of various styles, but the internal blades and cylinders of the motor are easily damaged during long-term use, thereby reducing the service life of the pneumatic belt machine. Utility Model Content

[0004] The utility model provides a pneumatic sanding machine cylinder group to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pneumatic belt sander cylinder group, including a cylinder group body, the cylinder group body including a rotor and a plurality of blades evenly spaced and distributed on a circle of the rotor, the cylinder body is sleeved on the outside of the rotor, both sides of one end of the blade facing the inner wall of the cylinder body are chamfered, and bearing one and bearing two are respectively provided at both ends of the rotor.

[0006] Furthermore, one end of the blade away from the inner wall of the cylinder body is arc-shaped and chamfered.

[0007] Furthermore, a front end cover is provided on the outer sleeve of the bearing 1.

[0008] Furthermore, a rear end cover is provided on the outer sleeve of the second bearing.

[0009] Furthermore, one end of the rotor is sleeved with a rotor washer located on one side of the bearing.

[0010] Furthermore, the bearing 1, the bearing 2, the front end cover and the rear end cover are all sintered by a powder metallurgy process.

[0011] Furthermore, a threaded head is provided at one end of the rotor.

[0012] Furthermore, the blades are made of composite materials.

[0013] Compared with the prior art, the utility model provides a pneumatic belt sander cylinder group, which has the following

[0014] Beneficial effects:

[0015] The cylinder group of the pneumatic belt sander adds chamfers at the contact point between the blades and the cylinder body, which reduces the friction between the blades and the cylinder body during rotation, improves the durability of the cylinder body, and also increases the overall service life of the product, thereby improving the performance of the belt sander. The blades are made of high-temperature resistant and wear-resistant composite materials. When the rotor rotates at high speed, the blades are not easy to break or deform, which solves the defects of the pneumatic belt sander in use and meets the needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural side view of the utility model;

[0018] Figure 3 This is an exploded view of the main structure of the cylinder group of the utility model;

[0019] Figure 4 This is a schematic diagram of the blade structure of the utility model.

[0020] In the figure: 1. Cylinder group body; 11. Rotor; 12. Blade; 13. Cylinder body; 14. Bearing 1; 15. Bearing 2; 16. Front cover; 17. Rear cover; 18. Rotor gasket; 19. Threaded head. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 The utility model discloses a pneumatic belt sander cylinder group, including a cylinder group body 1, the cylinder group body 1 includes a rotor 11 and a plurality of blades 12 equally spaced and distributed on a circle of the rotor 11, the outer sleeve of the rotor 11 is provided with a cylinder body 13, both sides of one end of the blade 12 facing the inner wall of the cylinder body 13 are chamfered, the two ends of the rotor 11 are respectively provided with a bearing 14 and a bearing 2 15, and a groove for installing the blade 12 is provided on a circle of the rotor 11.

[0023] Specifically, one end of the blade 12 away from the inner wall of the cylinder body 13 is arc-shaped and chamfered, the outer part of the bearing 14 is provided with a front end cover 16, the outer part of the bearing 2 15 is provided with a rear end cover 17, and one end of the rotor 11 is provided with a rotor gasket 18 located on one side of the bearing 14.

[0024] Specifically, the bearing 14, the bearing 2, the front cover 16 and the rear cover 17 are all sintered by powder metallurgy, and the bearing 14, the bearing 2, the front cover 16 and the rear cover 17 are sintered by powder metallurgy, and have high strength and wear resistance.

[0025] Specifically, a threaded head 19 is provided at one end of the rotor 11, and the threaded head 19 is used to connect to the main body of the pneumatic belt sander.

[0026] Specifically, the blade 12 is made of a composite material, and the composite material is one of a carbon fiber reinforced composite material, a ceramic matrix composite material, a polymer matrix carbon fiber composite material or an ARK-2 composite material, and has high temperature resistance and wear resistance.

[0027] To sum up, the cylinder group of the pneumatic belt sander adds a chamfer at the contact point between the blade 12 and the cylinder body 13, which reduces the friction between the blade 12 and the cylinder body 13 during rotation, improves the durability of the cylinder body 13, and also increases the overall service life of the product, thereby improving the performance of the belt sander. The blade 12 is made of a high-temperature resistant and wear-resistant composite material. When the rotor 11 rotates at high speed, the blade 12 is not easy to break or deform, which solves the defects of the pneumatic belt sander in use and meets the user's needs.

[0028] 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 cylinder group for a pneumatic belt sander, comprising a cylinder group body (1), characterized in that: The cylinder group body (1) comprises a rotor (11) and a plurality of blades (12) which are evenly spaced and distributed on a circle of the rotor (11); a cylinder body (13) is sleeved on the outside of the rotor (11); both sides of one end of the blade (12) facing the inner wall of the cylinder body (13) are chamfered; and a first bearing (14) and a second bearing (15) are respectively provided at both ends of the rotor (11).

2. The cylinder group of a pneumatic belt sander according to claim 1, characterized in that: The end of the blade (12) away from the inner wall of the cylinder body (13) is arc-shaped and chamfered.

3. The cylinder group of a pneumatic belt sander according to claim 1, characterized in that: The outer portion of the bearing 1 (14) is provided with a front end cover (16).

4. The cylinder group of a pneumatic belt sander according to claim 1, characterized in that: The outer portion of the second bearing (15) is sleeved with a rear end cover (17).

5. The cylinder assembly of a pneumatic belt sander according to claim 1, characterized in that: One end of the rotor (11) is sleeved with a rotor washer (18) located on one side of the bearing (14).

6. The cylinder assembly of a pneumatic belt sander according to claim 1, characterized in that: The bearing 1 (14), the bearing 2 (15), the front end cover (16) and the rear end cover (17) are all sintered and formed by a powder metallurgy process.

7. The cylinder assembly of a pneumatic belt sander according to claim 1, characterized in that: One end of the rotor (11) is provided with a threaded head (19).

8. The cylinder assembly of a pneumatic belt sander according to claim 1, characterized in that: The blade (12) is made of composite material.

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