Multi-leaf wheel

Abstract

The utility model relates to a multi-leaf wheel which comprises a metal wheel center portion located in the middle and a polishing blade portion arranged around the metal wheel center portion in a surrounding mode and clamped on the periphery of the metal wheel center portion, and the polishing blade portion comprises a plurality of first-type blade sets, a plurality of third-type blade sets and a plurality of fourth-type blade sets which are sequentially and repeatedly arranged at intervals. According to the utility model, the middle clearance position is arranged, and the third type of blade group with the middle connecting part can be embedded in the middle clearance position, so that the thickness of the middle connecting part and the blade group with the middle clearance position which are laminated and embedded together only forms the thickness of one blade group; the stacking thickness of the same number of the inner ends of various blade groups is effectively compressed, so that more blade groups can be stacked on the polishing blade part, the stacking compactness of the various blade groups on the outer circumference of the polishing blade part is increased, the wear resistance can be improved, the conditions of blade breakage and splashing are avoided, the safety is high, and the service life is prolonged. And gaps can be prevented from being formed in the outer circumferences of the grinding blade parts, so that the grinding and polishing quality is guaranteed.

Description

A type of leaf wheel Technical Field

[0001] This utility model relates to the field of polishing abrasives, and in particular to a flap wheel. Background Technology

[0002] A flap wheel, a type of polishing tool, is suitable for large-area rough polishing, grinding, rust removal, and grinding of various surfaces such as stainless steel, metal, wood, furniture, and stone. Among existing flap wheels, a patent application (patent number 202023195560.7) entitled "A Flap Wheel" is disclosed in Chinese patent literature. This solution mainly includes an impeller body with a central hole. A cover plate and a chuck are respectively installed at the upper and lower ends of the central hole. The impeller body is surrounded by several abrasive blades. In use, the flap wheel is fixed to the polishing shaft of the equipment by locking screws, allowing for polishing of the product. However, in practical applications, this flap wheel solution still has the following shortcomings:

[0003] Firstly, because the abrasive blades are sheet-like and the outer circumference of the impeller body is greater than the circumference of its central hole, the number of abrasive blades that can be stacked is limited by the circumference of the central hole. This results in the abrasive blades at the central hole being stacked tightly, while those at the outer circumference of the impeller body are stacked loosely. As a result, during grinding, the abrasive blades at the outer circumference of the impeller body are prone to breakage and flying out, which can easily injure workers and poses a significant safety problem. Furthermore, when a blade breaks, it will create a gap at the outer circumference of the impeller body, which will affect the grinding quality.

[0004] Secondly, regarding the problem mentioned in the first point, the existing solution is to use glue to bond the abrasive blades together in a spiral arrangement to increase the tightness of the stacking of the abrasive blades on the outer circumference of the impeller body. However, using glue for fixing is not only environmentally unfriendly, but also the hardened glue can scratch the product to be polished, further affecting the polishing quality of the product.

[0005] Therefore, based on the aforementioned shortcomings, the applicant believes it is essential to redesign the existing flapper wheel to meet the practical application needs of people. Summary of the Invention

[0006] The purpose of this invention is to solve the above-mentioned problems and shortcomings by providing a flap wheel. This flap wheel, by setting a central clearance, can embed a third type of blade group with a central connecting part in the central clearance. This allows the thickness of the central connecting part and the blade group with the central clearance to only constitute the thickness of one blade group, effectively compressing the thickness of the same number of stacked blade groups at the inner end. This allows for a larger number of blade groups to be stacked in the grinding blade section, increasing the density of the stacking of various blade groups on the outer circumference of the grinding blade section. This not only improves wear resistance but also prevents blade breakage and splashing, ensuring high safety. It also prevents the formation of gaps on the outer circumference of the grinding blade section, thus guaranteeing the grinding and polishing quality.

[0007] The technical solutions adopted by this utility model to solve its technical problem are as follows:

[0008] The first technical solution is implemented as follows: A flap wheel includes a central metal wheel core and polishing blades arranged around and clamped around the metal wheel core; characterized in that: the polishing blades include a plurality of sequentially repeating and spaced first type blade groups, third type blade groups, second type blade groups, and fourth type blade groups, wherein one end of the first type blade group is provided with a left-biased connecting portion, one end of the second type blade group is provided with a right-biased connecting portion, and one end of the third type blade group is provided with a central connecting portion, and the third type blade group is clamped between the first type blade group and the second type blade group, with the central connecting portion embedded in the middle clearance formed by the left-biased connecting portion and the right-biased connecting portion; the four type blade groups also have slots on both sides of one end for clamping and engaging the metal wheel core, and the outer sides of the left-biased connecting portion and the right-biased connecting portion are respectively provided with slots for clamping and engaging the metal wheel core.

[0009] The second technical solution is implemented as follows: a flap wheel includes a central metal wheel core and polishing blades arranged around and clamped around the metal wheel core; characterized in that: the polishing blades include a plurality of sequentially repeating and spaced first type blade groups, third type blade groups, and fourth type blade groups, wherein one end of the first type blade group is provided with a connecting part with a central clearance, and a locking slot is provided on both sides of the connecting part; one end of the third type blade group is provided with a central connecting part, and a locking ear is provided on both sides of the central connecting part; the first type blade group and the third type blade group are stacked and embedded together, with the central connecting part and the central clearance overlapping and embedded, and the locking ear and the locking slot overlapping and embedded, and a space for clamping and inserting the metal wheel core is formed in the locking slot; one end of the fourth type blade group is provided with a connecting part, and a locking slot for clamping and inserting the metal wheel core is provided on both sides of the connecting part.

[0010] The third technical solution is implemented as follows: a flap wheel includes a metal wheel core located in the middle and grinding blades arranged around and clamped around the metal wheel core; characterized in that: the grinding blades include a number of first type blade groups, third type blade groups, and fourth type blade groups arranged in a sequentially repeated and spaced manner, wherein one end of the first type blade group is provided with a central clearance, and the two sides corresponding to the central clearance are respectively provided with slots for clamping and engaging the metal wheel core; one end of the third type blade group is provided with a central connecting part; the first type blade group and the third type blade group are stacked together, and the central connecting part and the central clearance are stacked and embedded; the two sides of one end of the fourth type blade group are respectively provided with slots for clamping and engaging the metal wheel core.

[0011] The beneficial effects of this utility model are as follows: By setting an intermediate clearance, this utility model allows for the embedding of a third type of blade group with a central connecting part within the intermediate clearance. This ensures that the thickness of the stacked central connecting part and the blade group with the intermediate clearance is only equal to the thickness of one blade group, effectively compressing the thickness of the same number of stacked blade groups at their inner ends. This allows for the stacking of more blade groups in the grinding blade section, increasing the tightness of the stacking of various blade groups on the outer circumference of the grinding blade section. This not only effectively improves the wear resistance of the flap wheel but also prevents blade breakage and splashing during grinding, greatly improving safety and preventing the formation of gaps on the outer circumference of the grinding blade section, thus ensuring grinding and polishing quality and high reliability. Furthermore, by increasing the number of blade groups to increase the tightness of the stacking of various blade groups on the outer circumference of the grinding blade section, the application of adhesive bonding is eliminated, making it more environmentally friendly and preventing hardened adhesive from scratching the product to be ground, further guaranteeing the grinding and polishing quality. In addition, by stacking and clamping each blade group and limiting the position of the central connecting part through the intermediate clearance, the central connecting part can be effectively prevented from loosening and falling off, making its assembly very reliable. Attached Figure Description

[0012] Figure 1 is a schematic diagram of the flap wheel of this utility model in the front view.

[0013] Figure 2 is a schematic diagram of the cross-sectional structure of section AA in Figure 1 of this utility model.

[0014] Figure 3 is a three-dimensional structural diagram of the first type of blade group, the third type of blade group, the second type of blade group, and the fourth type of blade group in the first technical solution of this utility model.

[0015] Figure 4 is a schematic diagram showing the disassembled structure of the first type of blade group, the third type of blade group, and the second type of blade group in the first technical solution of this utility model.

[0016] Figure 5 is a three-dimensional structural diagram of the first type of blade group, the third type of blade group, and the fourth type of blade group in the second technical solution of this utility model.

[0017] Figure 6 is a schematic diagram of the disassembled structure of the first type of blade group and the third type of blade group in the second technical solution of this utility model.

[0018] Figure 7 is a three-dimensional structural diagram of the first type of blade group, the third type of blade group, and the fourth type of blade group in the third technical solution of this utility model.

[0019] Figure 8 is a schematic diagram of the disassembled structure of the first type of blade group and the third type of blade group in the third technical solution of this utility model. Detailed Implementation

[0020] Example 1:

[0021] As shown in Figures 1, 2, 3, and 4, the first technical solution of this utility model is as follows: A flap wheel includes a metal wheel core 1 located in the center and grinding blades 2 arranged around and clamped around the metal wheel core 1. To achieve the purpose proposed by this utility model, the grinding blades 2 include a plurality of first-type blade groups 21, third-type blade groups 23, second-type blade groups 22, and fourth-type blade groups 24 arranged in a sequentially repeated and spaced manner. One end of the first-type blade group 21 is provided with a left-biased connecting portion 201, and one end of the second-type blade group 22 is provided with a right-biased connecting portion. 202, one end of the third type of blade group 23 is provided with a central connecting part 203, and the third type of blade group 23 is clamped between the first type of blade group 21 and the second type of blade group 22, and the central connecting part 203 is embedded in the left-biased connecting part 201 and the right-biased connecting part 202 to form a middle clearance 200; one end of the fourth type of blade group 24 is also provided with a slot 25 for clamping and inserting the metal wheel core 1 on both sides, and the outer sides of the left-biased connecting part 201 and the right-biased connecting part 202 are respectively provided with a slot 25 for clamping and inserting the metal wheel core 1. In the first technical solution, the intermediate clearance 200 is formed by the gap between the left-biased connecting portion 201 of the first type of blade group 21 and the right-biased connecting portion 202 of the second type of blade group 22. Compared with the second and third technical solutions, the first technical solution adds a second type of blade group 22, which can further increase the number of blade groups in the grinding blade section 2, thereby further increasing the stacking tightness of various blade groups on the outer circumference of the grinding blade section 2, and further improving the wear resistance of the flap wheel. It should be noted that Figure 2 adopts a simplified drawing method, omitting the middle section of the cross-sectional view of the grinding blade section 2, in order to better show the structure of the bayonet 25 and the rib 13.

[0022] To further ensure the tightness of the stacking of various blade groups in the polishing blade section 2, as shown in Figures 3 and 4, the first type of blade group 21, the third type of blade group 23, and the second type of blade group 22 are each composed of at least two or more identical abrasive blades stacked together; the fourth type of blade group 24 is composed of at least four or more identical abrasive blades stacked together. By setting at least two or more first-type blade groups 21, third-type blade groups 23, and second-type blade groups 22, the total number of first-type blade groups 21, third-type blade groups 23, and second-type blade groups 22, when their left-side connecting part 201, middle connecting part 203, and right-side connecting part 202 are stacked and embedded, can be configured as the thickness of only two abrasive blades. This can greatly compress the stacking thickness of the connecting parts at the inner ends of the first-type blade groups 21, third-type blade groups 23, and second-type blade groups 22, so that the number of blade groups that can be stacked in the grinding blade section 2 is sufficient to increase the stacking tightness of various blade groups at the outer circumference of the grinding blade section 2. By setting at least four or more fourth-type blade groups 24 and ensuring that the inner thickness of the fourth-type blade groups 24 is not compressed, adjacent fourth-type blade groups 24 can have very good structural strength. The left-biased connecting part 201, the middle connecting part 203, and the right-biased connecting part 202 are clamped and limited respectively to prevent them from loosening and splashing, thereby ensuring the firmness of the assembly and the reliability of use.

[0023] To further improve the structure of the metal wheel core 1, as shown in Figure 2, the metal wheel core 1 is composed of a front circular clamping disc 11 and a rear circular clamping disc 12. The inner surfaces of the front and rear circular clamping discs 11 and 12 are respectively provided with protruding ribs 13 that engage with the bayonet 25. A shaft hole 14 is provided at the center of the front and rear circular clamping discs 11 and 12. Specifically, the protruding ribs 13 are annular. This allows for the installation and fixation of the grinding blade section 2, which is composed of various blade groups. The shaft hole 14 facilitates the fixing of the flap wheel to the polishing shaft of the equipment using locking screws or other fasteners.

[0024] Example 2:

[0025] As shown in Figures 1, 2, 5, and 6, the second technical solution of this utility model is as follows: a flap wheel includes a metal wheel core 1 located in the middle and grinding blades 2 arranged around and clamped around the metal wheel core 1; to achieve the purpose proposed by this utility model, the grinding blades 2 include a plurality of first type blade groups 21, third type blade groups 23, and fourth type blade groups 24 arranged in a sequentially repeated and spaced manner, wherein one end of the first type blade group 21 is provided with a connecting part 204 with a central clearance 200, and a retaining slot 25 is provided on both sides of the connecting part 204; the third type blades 24... One end of the blade assembly 23 is provided with a central connecting portion 203, and two side lugs 205 are respectively provided on both sides of the central connecting portion 203. The first type of blade assembly 21 and the third type of blade assembly 23 are stacked and embedded together, with the central connecting portion 203 stacked and embedded with the intermediate clearance 200, and the lugs 205 stacked and embedded with the slots 25, and a space for clamping and inserting the metal wheel core 1 is formed in the slots 25. One end of the fourth type of blade assembly 24 is provided with a connecting portion 204, and two side lugs 25 are respectively provided on both sides of the connecting portion 204 for clamping and inserting the metal wheel core 1. By providing the lugs 205, the position of the third type of blade assembly 23 can be limited, preventing the third type of blade assembly 23 from loosening and splashing out, thus improving the firmness and reliability of the assembly connection. By creating a space between the ear portion 205 and the slot 25 for the metal wheel core portion 1 to be clamped in, the ear portion 205 and the slot 25 can clamp the metal wheel core portion 1, thereby further improving the firmness of the assembly connection.

[0026] To further ensure the tightness of the stacking of various blade groups in the grinding blade section 2, as shown in Figures 5 and 6, the first type of blade group 21 and the third type of blade group 23 are each composed of at least two identical abrasive blades stacked together; the fourth type of blade group 24 is composed of at least four identical abrasive blades stacked together. By setting at least two first type of blade groups 21 and three type of blade groups 23, the total number of first type of blade groups 21 and three type of blade groups 23 is four. After the middle clearance 200 of the central connecting part 203 and the connecting part 204 is stacked and embedded, it only constitutes the thickness of two abrasive blades. This greatly reduces the stacking thickness of the inner ends of the first type of blade groups 21 and three type of blade groups 23, so that the number of blade groups that can be stacked in the grinding blade section 2 is sufficient to increase the tightness of the stacking of various blade groups at the outer circumference of the grinding blade section 2. By setting at least four or more fourth-type blade groups 24 and ensuring that the inner end thickness of the fourth-type blade groups 24 is not compressed, two adjacent fourth-type blade groups 24 can have very good structural strength to clamp and limit the central connecting part 203 and the connecting part 204 respectively, preventing them from loosening and splashing, so as to ensure the firmness of the assembly and the reliability of use.

[0027] To further improve the structure of the first type of blade group 21 and the fourth type of blade group 24, as shown in Figure 5, the width of the abrasive blades in the first type of blade group 21 and the fourth type of blade group 24 is smaller than the width of their connecting portion 204. This allows for the manufacture of a grinding blade portion 2 with a lower height for the grinding part without changing the structure of the metal wheel core portion 1, making it suitable for the polishing and grinding needs of various products.

[0028] To further improve the structure of the metal wheel core 1, as shown in Figure 2, the metal wheel core 1 is composed of a front circular clamping disc 11 and a rear circular clamping disc 12. The inner surfaces of the front and rear circular clamping discs 11 and 12 are respectively provided with protruding ribs 13 that engage with the bayonet 25. A shaft hole 14 is provided at the center of the front and rear circular clamping discs 11 and 12. Specifically, the protruding ribs 13 are annular. This allows for the installation and fixation of the grinding blade section 2, which is composed of various blade groups. The shaft hole 14 facilitates the fixing of the flap wheel to the polishing shaft of the equipment using locking screws or other fasteners.

[0029] Example 3:

[0030] As shown in Figures 1, 2, 7, and 8, the third technical solution of this utility model is as follows: A flap wheel includes a metal wheel core 1 located in the middle and grinding blades 2 arranged around and clamped around the metal wheel core 1. To achieve the purpose proposed by this utility model, the grinding blades 2 include a plurality of first type blade groups 21, third type blade groups 23, and fourth type blade groups 24 arranged in sequence and repeating at intervals. The first type blade group 21 has a central clearance 200 at one end, and the two sides corresponding to the central clearance 200 are respectively provided with slots 25 for clamping and inserting the metal wheel core 1. The third type blade group 23 has a central connecting part 203 at one end. The first type blade group 21 and the third type blade group 23 are stacked together, and the central connecting part 203 and the central clearance 200 are stacked and embedded. The two sides of one end of the fourth type blade group 24 are respectively provided with slots 25 for clamping and inserting the metal wheel core 1. The third technical solution has a simpler structure and is easier to manufacture than the first and second technical solutions. In practical applications, both the central connecting part 203 and the intermediate clearance 200 in the third technical solution have an inverted conical structure. This can limit the central connecting part 203, prevent it from loosening and splashing, and ensure the firmness of the assembly and the reliability of the use.

[0031] To further ensure the tightness of the stacking of various blade groups in the grinding blade section 2, as shown in Figures 7 and 8, the first type of blade group 21 and the third type of blade group 23 are each composed of at least two identical abrasive blades stacked together; the fourth type of blade group 24 is composed of at least four identical abrasive blades stacked together. By setting at least two first type of blade groups 21 and three type of blade groups 23, the total number of first type of blade groups 21 and three type of blade groups 23 is four. After the central connecting part 203 is stacked and embedded with one end of the first type of blade group 21, it only constitutes the thickness of two abrasive blades. This greatly reduces the stacking thickness of the inner ends of the first type of blade groups 21 and three type of blade groups 23, so that the number of blade groups that can be stacked in the grinding blade section 2 is sufficient to increase the tightness of the stacking of various blade groups at the outer circumference of the grinding blade section 2. By setting at least four or more fourth-type blade groups 24 and ensuring that the inner end thickness of the fourth-type blade groups 24 is not compressed, two adjacent fourth-type blade groups 24 can have very good structural strength. They clamp and limit the central connecting part 203 and one end of the first-type blade group 21 respectively, preventing them from loosening and splashing, so as to ensure the firmness of the assembly and the reliability of use.

[0032] To further improve the structure of the metal wheel core 1, as shown in Figure 2, the metal wheel core 1 is composed of a front circular clamping disc 11 and a rear circular clamping disc 12. The inner surfaces of the front and rear circular clamping discs 11 and 12 are respectively provided with protruding ribs 13 that engage with the bayonet 25. A shaft hole 14 is provided at the center of the front and rear circular clamping discs 11 and 12. Specifically, the protruding ribs 13 are annular. This allows for the installation and fixation of the grinding blade section 2, which is composed of various blade groups. The shaft hole 14 facilitates the fixing of the flap wheel to the polishing shaft of the equipment using locking screws or other fasteners.

[0033] In practical applications, the abrasive blades of the first type of blade group 21, the third type of blade group 23, the fourth type of blade group 24, and the second type of blade group 22 in the above three technical solutions are all arc-shaped sheet structures. This allows them to be arranged in a spiral pattern to form the grinding blade section 2. This structural design also makes the connection between each blade group tighter, preventing loosening and breakage, thereby improving wear resistance and grinding and polishing quality.

Claims

1. A flap wheel, comprising a central metal wheel core (1) and polishing blades (2) arranged around and clamped around the metal wheel core (1); characterized in that: The polishing blade section (2) includes a plurality of sequentially repeated and spaced first type blade groups (21), third type blade groups (23), second type blade groups (22), and fourth type blade groups (24). One end of the first type blade group (21) is provided with a left-biased connecting portion (201), one end of the second type blade group (22) is provided with a right-biased connecting portion (202), and one end of the third type blade group (23) is provided with a centrally located connecting portion (203). The third type blade group (23) is clamped within the first type blade group (24). The first type of blade group (21) is placed between the second type of blade group (22) and the central connecting part (203) is embedded in the left-biased connecting part (201) and the right-biased connecting part (202) to form a middle clearance (200); the fourth type of blade group (24) is also provided with a slot (25) for clamping and inserting the metal wheel core part (1) on both sides of one end, and the left-biased connecting part (201) and the right-biased connecting part (202) are respectively provided with a slot (25) for clamping and inserting the metal wheel core part (1) on the outer side.

2. The flapper wheel according to claim 1, characterized in that: The first type of blade group (21), the third type of blade group (23), and the second type of blade group (22) are each composed of at least two or more identical abrasive blades stacked together; the fourth type of blade group (24) is composed of at least four or more identical abrasive blades stacked together.

3. The flapper wheel according to claim 1, characterized in that: The metal wheel core (1) is composed of a front circular clamping disc (11) and a rear circular clamping disc (12). The inner surfaces of the front circular clamping disc (11) and the rear circular clamping disc (12) are respectively provided with protruding ribs (13) that engage with the bayonet (25). The center of the front circular clamping disc (11) and the rear circular clamping disc (12) is provided with shaft holes (14).

4. A flap wheel, comprising a central metal wheel core (1) and polishing blades (2) arranged around and clamped around the metal wheel core (1); characterized in that: The polishing blade section (2) includes a number of sequentially repeated and spaced first type blade groups (21), third type blade groups (23), and fourth type blade groups (24). The first type blade group (21) has a connecting part (204) with a middle clearance (200) at one end, and a bayonet (25) is provided on both sides of the connecting part (204). The third type blade group (23) has a central connecting part (203) at one end, and a retaining part (205) is provided on both sides of the central connecting part (203). The first type of blade group (21) is stacked and embedded together with the third type of blade group (23), and the central connecting part (203) is stacked and embedded with the central clearance position (200), and the ear part (205) is stacked and embedded with the slot (25), and a space for clamping and inserting the metal wheel core part (1) is also formed in the slot (25); one end of the fourth type of blade group (24) is provided with a connecting part (204), and slots (25) for clamping and inserting the metal wheel core part (1) are provided on both sides of the connecting part (204).

5. The flapper wheel according to claim 4, characterized in that: The first type of blade group (21) and the third type of blade group (23) are each composed of at least two or more identical abrasive cloth blades stacked together; the fourth type of blade group (24) is composed of at least four or more identical abrasive cloth blades stacked together.

6. The flapper wheel according to claim 5, characterized in that: The width of the abrasive blades in the first type of blade group (21) and the fourth type of blade group (24) is smaller than the width of their connecting part (204).

7. The flapper wheel according to claim 4, characterized in that: The metal wheel core (1) is composed of a front circular clamping disc (11) and a rear circular clamping disc (12). The inner surfaces of the front circular clamping disc (11) and the rear circular clamping disc (12) are respectively provided with protruding ribs (13) that engage with the bayonet (25). The center of the front circular clamping disc (11) and the rear circular clamping disc (12) is provided with shaft holes (14).

8. A flap wheel, comprising a central metal wheel core (1) and polishing blades (2) arranged around and clamped around the metal wheel core (1); characterized in that: The polishing blade section (2) includes a number of sequentially repeated and spaced first type blade groups (21), third type blade groups (23), and fourth type blade groups (24). The first type blade group (21) has a middle clearance (200) at one end, and the two sides corresponding to the middle clearance (200) are respectively provided with slots (25) for clamping and inserting the metal wheel core (1). The third type blade group (23) has a central connecting part (203) at one end. The first type blade group (21) and the third type blade group (23) are stacked together, and the central connecting part (203) and the middle clearance (200) are stacked and embedded together. The four types blade groups (24) are also provided with slots (25) for clamping and inserting the metal wheel core (1) on the two sides of one end.

9. The flapper wheel according to claim 8, characterized in that: The first type of blade group (21) and the third type of blade group (23) are each composed of at least two or more identical abrasive cloth blades stacked together; the fourth type of blade group (24) is composed of at least four or more identical abrasive cloth blades stacked together.

10. The flapper wheel according to claim 8, characterized in that: The metal wheel core (1) is composed of a front circular clamping disc (11) and a rear circular clamping disc (12). The inner surfaces of the front circular clamping disc (11) and the rear circular clamping disc (12) are respectively provided with protruding ribs (13) that engage with the bayonet (25). The center of the front circular clamping disc (11) and the rear circular clamping disc (12) is provided with shaft holes (14).

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