High-flexibility drum type grinding impeller
By designing an anti-loosening mechanism on the highly flexible drum grinding wheel, the problem of nut loosening is solved, ensuring the stability of the wheel during rotation and good contact on irregular surfaces, thereby improving the stability and quality of part grinding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU JOYSUN ABRASIVES CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-24
AI Technical Summary
Existing high-flexibility drum-type grinding wheel has nuts that are prone to loosening during high-speed rotation, and it has poor stability when processing hard materials or irregular surfaces, resulting in insecure fixing.
An anti-loosening mechanism was designed, including a hollow spline cylinder, a locking post, an elastic drive unit, and a sliding groove frame. The locking post is inserted into the locking hole of the nut, and combined with the spring's rebound force, it ensures that the flap wheel is fixed on the rotating post, reducing the risk of loosening caused by vibration.
This design ensures the flap wheel remains firmly fixed during rotation, reduces nut loosening, provides more stable grinding performance, and maintains good contact on irregular surfaces, thus improving the grinding quality of parts.
Smart Images

Figure CN224158250U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of leaf wheel technology, and specifically relates to a highly flexible drum-type grinding leaf wheel. Background Technology
[0002] Highly flexible drum abrasive flaps are tools specifically designed for fine grinding and polishing operations, especially suitable for handling complex shapes or irregular surfaces. These flaps typically consist of a soft and elastic base material and embedded abrasive particles.
[0003] Existing high-flexibility drum grinding blades are fitted into the interior of a rotating column and then fixed with nuts. By driving the blades on the rotating column to rotate, the blades of the blades come into contact with the parts, achieving flexible grinding of the parts. However, the continuous vibration generated during high-speed rotation causes the nuts to gradually loosen. Moreover, when encountering hard materials or irregular surfaces, the blades are subjected to large impact loads, causing the bolts to loosen. Utility Model Content
[0004] In view of this, this utility model addresses the shortcomings of the prior art by providing a highly flexible drum-type grinding wheel. The wheel is fixed on the outer arc surface of the rotating column, which can prevent the bolts from loosening. This ensures that the wheel is firmly fixed on the outer arc surface, reduces the risk of loosening caused by vibration, provides more stable rotation performance, and steadily grinds the parts.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a highly flexible drum-type grinding blade, including a rotating mounting column, a hollow spline cylinder slidably disposed on the outer arc surface of the rotating mounting column, a plurality of blades evenly distributed on the outer arc surface of the hollow spline cylinder, a nut threadedly connected to the threaded part on the left side of the rotating mounting column, the nut abutting against the left end of the hollow spline cylinder, and an anti-loosening mechanism disposed on the left side of the hollow spline cylinder, the anti-loosening mechanism preventing the nut from loosening, the anti-loosening mechanism including a blade disposed on the hollow spline cylinder. The sliding groove frame on the left side of the heart-shaped key cylinder has a cavity frame that slides inside, and a locking pin that slides inside the cavity frame. Multiple locking holes are opened on the outer arc surface of the nut, and the locking pin is inserted into one of the locking holes. An elastic drive unit is provided on the outer arc surface of the locking pin. The elastic drive unit includes a limiting plate provided on the outer arc surface of the locking pin. A spring is provided between the cavity frame and the locking plate, and the spring is sleeved on the outer arc surface of the locking pin. A pull plate is provided at the upper end of the locking pin, and the locking pin and the pull plate are fixed by welding.
[0006] As a further improvement of this utility model, the material of the sheet is fiber-reinforced resin.
[0007] As a further improvement of this utility model, an abutment plate is provided on the outer arc surface of the rotating mounting column, and the rear side of the rotating mounting column and the abutment hollow spline cylinder abuts against the front side of the abutment plate.
[0008] As a further improvement of this utility model, a mounting plate is provided on the rear side of the rotating mounting column.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0010] Firstly, by sliding the hollow spline cylinder into the spline of the rotating mounting column and abutting it against the abutment plate, the nut is then inserted onto the rotating mounting column. Next, the pull plate is pulled, causing the locking pin to move upward. Then, the nut is rotated and abuts against the hollow spline cylinder through its threads. Then, the cavity frame is pulled, causing it to slide inside the sliding groove frame, so that the locking pin aligns with one of the locking holes inside the nut. Then, the pull plate is released, at which point the spring quickly rebounds, causing the locking pin to insert into the locking hole. The flap wheel is fixed on the outer arc surface of the rotating column, which can prevent the bolts from loosening. This ensures that the flap wheel is firmly fixed on the outer arc surface, reducing the risk of loosening caused by vibration, providing more stable rotation performance, and ensuring stable grinding of parts.
[0011] Secondly, the rotating mounting column can be quickly installed onto the drive mechanism via the mounting plate, which can drive the flap wheel to rotate and grind the parts, while also facilitating installation by personnel.
[0012] Third, the fiber-reinforced resin blades enable the blades to maintain good contact when working on irregular or curved surfaces, resulting in higher quality grinding of the parts. Attached Figure Description
[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a front sectional view of the present invention.
[0016] Figure 3 This is an enlarged structural diagram of point A in this utility model;
[0017] Figure 4 This is a schematic diagram of the exploded structure of this utility model.
[0018] In the diagram: 101, rotating mounting post; 102, blade; 103, hollow spline cylinder; 104, mounting plate; 105, abutment plate; 201, nut; 202, locking hole; 203, sliding groove frame; 204, cavity frame; 205, locking post; 206, limit plate; 207, spring; 208, pull plate. Detailed Implementation
[0019] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.
[0020] like Figure 1 , 2 As shown in Figure 4, a highly flexible drum-type grinding wheel includes a rotating mounting post 101. A hollow spline cylinder 103 is slidably disposed on the outer arc surface of the rotating mounting post 101. Multiple blades 102 are disposed on the outer arc surface of the hollow spline cylinder 103 at equal intervals. A nut 201 is threadedly connected to the threaded part on the left side of the rotating mounting post 101. The nut 201 abuts against the left end of the hollow spline cylinder 103. An anti-loosening mechanism is provided on the left side of the hollow spline cylinder 103 to prevent the nut 201 from loosening. The blades 102 are made of fiber-reinforced resin, which enables the blades 102 to maintain good contact when working on irregular or curved surfaces. An abutment plate 105 is disposed on the outer arc surface of the rotating mounting post 101. The rear side of the hollow spline cylinder 103 abuts against the front side of the abutment plate 105.
[0021] like Figure 3 As shown, the anti-loosening mechanism includes a sliding groove frame 203 disposed on the left side of the hollow spline cylinder 103. A cavity frame 204 is slidably disposed inside the sliding groove frame 203. A locking pin 205 is slidably disposed inside the cavity frame 204. Multiple locking holes 202 are opened on the outer arc surface of the nut 201. The multiple locking holes 202 are arranged at equal intervals. The locking pin 205 is inserted into one of the locking holes 202. An elastic drive unit is disposed on the outer arc surface of the locking pin 205. The elastic drive unit includes a limiting plate 206 disposed on the outer arc surface of the locking pin 205. A spring 207 is disposed between the cavity frame 204 and the locking plate. The spring 207 is sleeved on the outer arc surface of the locking pin 205. A pull plate 208 is disposed at the upper end of the locking pin 205.
[0022] By sliding the hollow spline cylinder 103 into the spline of the rotating mounting post 101 and making it abut against the abutment plate 105, the nut 201 is then inserted onto the rotating mounting post 101. Next, the pull plate 208 is pulled, causing the locking post 205 to move upward, and the spring 207 inside is compressed. Then, the nut 201 is rotated and abuts against the hollow spline cylinder 103 through the thread. Then, the cavity frame 204 is pulled, causing it to slide inside the sliding groove frame 203, so that the locking post 205 corresponds to one of the locking holes 202 inside the nut 201. Then, the pull plate 208 is released, at which point the spring 207 quickly rebounds, causing the locking post 205 to insert into the locking hole 202, thereby preventing the nut 201 from rotating and loosening.
[0023] According to another embodiment of the present invention, such as Figure 1 , 2 As shown in Figure 4, a mounting plate 104 is provided on the rear side of the rotating mounting column 101. The rotating mounting column 101 and the mounting plate 104 are fixed together by welding. The rotating mounting column 101 can be quickly installed onto the drive mechanism through the mounting plate 104, which can drive the flap wheel to rotate and grind the parts.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A highly flexible drum-type grinding wheel, comprising a rotating mounting post (101), characterized in that: A hollow spline cylinder (103) is slidably disposed on the outer arc surface of the rotating mounting column (101). Multiple blades (102) are disposed on the outer arc surface of the hollow spline cylinder (103) at equal intervals. A nut (201) is threadedly connected to the threaded part on the left side of the rotating mounting column (101). The nut (201) abuts against the left end of the hollow spline cylinder (103). A mechanism for preventing loosening is provided on the left side of the hollow spline cylinder (103). The mechanism can prevent the nut (201) from loosening.
2. The highly flexible drum-type grinding wheel as described in claim 1, characterized in that: The anti-loosening mechanism includes a sliding groove frame (203) disposed on the left side of the hollow spline cylinder (103), a cavity frame (204) is slidably disposed inside the sliding groove frame (203), a locking pin (205) is slidably disposed inside the cavity frame (204), a plurality of locking holes (202) are provided on the outer arc surface of the nut (201), the locking pin (205) is inserted into one of the locking holes (202), and an elastic drive unit is provided on the outer arc surface of the locking pin (205).
3. The highly flexible drum-type grinding wheel as described in claim 2, characterized in that: The elastic drive unit includes a limiting plate (206) disposed on the outer arc surface of the locking post (205), and a spring (207) disposed between the cavity frame (204) and the locking plate, the spring (207) being sleeved on the outer arc surface of the locking post (205).
4. The highly flexible drum-type grinding wheel as described in claim 2, characterized in that: The upper end of the locking pin (205) is provided with a pull plate (208).
5. The highly flexible drum-type grinding wheel as described in claim 1, characterized in that: The outer arc surface of the rotating mounting column (101) is provided with an abutment plate (105), and the rear side of the hollow spline cylinder (103) abuts against the front side of the abutment plate (105).
6. The highly flexible drum-type grinding wheel as described in claim 1, characterized in that: A mounting plate (104) is provided on the rear side of the rotating mounting column (101).
7. The highly flexible drum-type grinding wheel as described in claim 1, characterized in that: The sheet (102) is made of fiber-reinforced resin.