A high-stability polyurethane abrasive foam sanding wheel

Abstract

This utility model discloses a high-stability polyurethane abrasive foamed sanding wheel, comprising: a sanding wheel body, a ventilation cavity inside the sanding wheel body, multiple air inlets inside the sanding wheel body, the lower ends of the multiple air inlets communicating with the interior of the ventilation cavity, the upper ends of the multiple air inlets extending to the exterior of the sanding wheel body, annular grooves on both sides of the sanding wheel body, multiple heat dissipation holes on the inner walls of the two annular grooves, one end of the multiple heat dissipation holes communicating with the interior of the ventilation cavity. Through the ventilation cavity, air inlets, annular grooves and heat dissipation holes, the heat generated by the sanding wheel body during grinding is easily removed, which helps to reduce the impact of thermal stress on the sanding wheel body and prevent thermal stress from causing structural damage to the sanding wheel body. In addition, through the damping ring, the energy of high-frequency micro-amplitude vibration generated by the sanding wheel body during grinding can be consumed, which helps to improve the stability during use and facilitates the replacement of the damping ring.

Description

Technical Field

[0001] This utility model relates to the field of sanding wheel technology, and in particular to a high-stability polyurethane abrasive foamed sanding wheel. Background Technology

[0002] A sanding wheel is a ring-shaped tool installed on rotating equipment (such as angle grinders, straight grinders, automatic polishing machines, etc.) for grinding, polishing, and cleaning the surfaces of various materials. Its core function is to reduce the amount of material processed and improve its quality. It is widely used in the metal processing and manufacturing industry.

[0003] During the grinding process, existing polyurethane abrasive foam sanding wheels generate a lot of heat due to the grinding action, and the thermal stress can damage the structure of the sanding wheel. Utility Model Content

[0004] The purpose of this invention is to provide a highly stable polyurethane abrasive foamed sanding wheel, which solves the problem that sanding wheels are easily damaged by thermal stress during grinding.

[0005] To achieve the above objectives, a high-stability polyurethane abrasive foamed sanding wheel is provided, comprising: a sanding wheel body, a ventilation cavity inside the sanding wheel body, multiple air inlets inside the sanding wheel body, the lower ends of the multiple air inlets communicating with the interior of the ventilation cavity, the upper ends of the multiple air inlets extending to the exterior of the sanding wheel body, annular grooves on both sides of the sanding wheel body, multiple heat dissipation holes on the inner walls of the two annular grooves, and one end of the multiple heat dissipation holes communicating with the interior of the ventilation cavity. Through the cooperation of the ventilation cavity, air inlets, annular grooves and heat dissipation holes, the heat generated by the sanding wheel body during grinding is easily removed, which helps to reduce the impact of thermal stress on the sanding wheel body and helps to prevent thermal stress from causing structural damage to the sanding wheel body. Multiple mounting holes are formed through the side of the sanding wheel body, and mounting rods are installed inside each of the mounting holes. A damping ring is fitted over the mounting rod. A mounting groove is formed inside one end of the mounting rod, and two limiting rods are slidably connected inside the mounting groove. A shaped block is slidably connected between the two limiting rods. The end of the limiting rod away from the shaped block extends to the outside of the mounting rod. A bolt is threaded inside the mounting rod, and the lower end of the bolt is rotatably connected to the upper surface of the shaped block. A limiting slider is fixedly connected to the upper surface of the limiting rod, and the limiting slider is slidably connected to the top surface of the mounting groove through a sliding groove. The side of the limiting rod extending to the outside of the mounting rod fits against the side of the sanding wheel body. The damping ring can dissipate the energy of the high-frequency micro-amplitude vibration generated by the sanding wheel body during grinding, which helps to improve the stability during use and facilitates the replacement of the damping ring.

[0006] According to the high-stability polyurethane abrasive foaming sanding wheel, a plurality of air inlets are arranged in a ring, the plurality of air inlets are evenly arranged, and the air inlets are arranged in an arc shape to facilitate airflow inside the air inlets.

[0007] According to the high-stability polyurethane abrasive foaming sanding wheel, the plurality of mounting holes are arranged in a ring and are evenly distributed, which increases the aesthetics of the damping ring installation.

[0008] According to the high-stability polyurethane abrasive foaming sanding wheel, the longitudinal section of the irregular block is an isosceles trapezoid, and both sides of the irregular block are slidably connected to the inner wall of the mounting groove. The mounting groove facilitates the limiting of the irregular block and can prevent the irregular block from rotating synchronously with the bolt.

[0009] According to the high-stability polyurethane abrasive foaming sanding wheel, each of the two limiting rods has an inclined surface at one end near the irregular block. The inclined surface of the irregular block cooperates with the inclined surface of the limiting rod, so that the limiting rod can be pushed to move to both sides when the irregular block moves down.

[0010] According to the high-stability polyurethane abrasive foaming sanding wheel, the longitudinal section of the mounting groove is square, which facilitates the installation of the limiting rod and the irregular block inside the mounting groove.

[0011] According to the high-stability polyurethane abrasive foaming sanding wheel, the mounting hole is located between two adjacent air inlets, and the outer diameter of the damping ring is the same as the diameter of the mounting hole.

[0012] The above-mentioned solution has the following beneficial effects: The air inlet allows airflow to easily enter the ventilation chamber, while the heat dissipation holes connected to the ventilation chamber allow the heated airflow to easily escape. This helps to reduce the impact of thermal stress on the sanding wheel body and prevents thermal stress from causing structural damage to the sanding wheel body.

[0013] The damping ring can dissipate the energy of high-frequency micro-amplitude vibrations generated during grinding by the sanding wheel body. By rotating the bolt, the irregular block can be easily moved upward, and the restriction of the irregular block on the limit rod can be easily released. By manually pressing the limit rod, the limit rod can be easily retracted, and the restriction of the limit rod on the mounting rod can be easily released. The limit slider can prevent the limit rod from moving out of the mounting groove, and the damping ring can be easily replaced.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1This is a perspective view of a high-stability polyurethane abrasive foaming sanding wheel according to the present invention. Figure 2 This is a diagram showing the internal structure of a high-stability polyurethane abrasive foaming sanding wheel according to this utility model. Figure 3 This is a diagram showing the internal structure of the mounting rod in a high-stability polyurethane abrasive foaming sanding wheel according to this utility model. Figure 4 This utility model relates to a high-stability polyurethane abrasive foaming sanding wheel. Figure 1 Enlarged view of point A in the middle; Figure 5 This utility model relates to a high-stability polyurethane abrasive foaming sanding wheel. Figure 3 Enlarged view of point B in the middle.

[0016] Legend: 1. Sanding wheel body; 2. Ventilation cavity; 3. Air inlet; 4. Annular groove; 5. Heat dissipation hole; 6. Mounting hole; 7. Mounting rod; 8. Damping ring; 9. Mounting groove; 10. Limiting rod; 11. Irregular block; 12. Bolt; 13. Limiting slider. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] Reference Figure 1-5 This utility model provides a high-stability polyurethane abrasive foamed sanding wheel, comprising: a sanding wheel body 1, a ventilation cavity 2 inside the sanding wheel body 1 for air flow, multiple air inlets 3 inside the sanding wheel body 1, air entering through the air inlets 3 during high-speed rotation of the sanding wheel body 1, the lower ends of the multiple air inlets 3 communicating with the interior of the ventilation cavity 2, the upper ends of the multiple air inlets 3 extending to the exterior of the sanding wheel body 1, annular grooves 4 on both sides of the sanding wheel body 1, the annular grooves 4 being concave to increase the surface heat dissipation area, multiple heat dissipation holes 5 on the inner walls of the two annular grooves 4, the heat dissipation holes 5 facilitating the outflow of hot air, and one end of each of the multiple heat dissipation holes 5 communicating with the interior of the ventilation cavity 2; Multiple mounting holes 6 are formed through the side of the sanding wheel body 1 for mounting damping rings 8. Each mounting hole 6 contains a mounting rod 7, and the mounting rod 7 is fitted with a damping ring 8 made of damping material. One end of the mounting rod 7 has a mounting groove 9 to provide a mounting base. Two limiting rods 10 are slidably connected inside the mounting groove 9 to limit the mounting rod 7. A shaped block 11 is slidably connected between the two limiting rods 10, pushing the limiting rods 10 to move to both sides, moving the limiting rods 10 away from the shaped block. One end of the shaped block 11 extends to the outside of the mounting rod 7. The mounting rod 7 is internally connected to a threaded bolt 12. The bolt 12 is used to drive the shaped block 11 to move. The lower end of the bolt 12 is rotatably connected to the upper surface of the shaped block 11. The upper surface of the limiting rod 10 is fixedly connected to the limiting slider 13. The limiting slider 13 cooperates with the internal sliding groove of the mounting groove 9 to limit the limiting slider 13. The limiting slider 13 is slidably connected to the inner top surface of the mounting groove 9 through the sliding groove. The side of the end of the limiting rod 10 extending to the outside of the mounting rod 7 is in contact with the side of the sanding wheel body 1.

[0019] Reference Figure 2-3 Multiple air inlets 3 are arranged in a ring, and are evenly distributed. The air inlets 3 are arc-shaped to facilitate air entry. Multiple mounting holes 6 are arranged in a ring, and are evenly distributed. The mounting holes 6 are positioned between two adjacent air inlets 3 to prevent the mounting holes 6 from cutting off the air inlets 3. The outer diameter of the damping ring 8 is the same as the diameter of the mounting holes 6 to ensure the smooth transmission of micro-amplitude vibrations.

[0020] Reference Figure 5 The irregular block 11 has an isosceles trapezoidal longitudinal section. Both sides of the irregular block 11 are slidably connected to the inner wall of the mounting groove 9. The irregular block 11 can be limited by the mounting groove 9. The two limiting rods 10 are provided with inclined surfaces at the ends near the irregular block 11. The mounting groove 9 has a square longitudinal section, which can accommodate the installation of the irregular block 11 and the limiting rods 10.

[0021] Working principle: First, the sanding wheel body 1 is installed on the grinding device, and then the sanding wheel body 1 is used for grinding. During its high-speed rotation, the airflow enters the ventilation chamber 2 through the air inlet 3, and then the airflow inside the ventilation chamber 2 flows out from the heat dissipation hole 5. The airflow carries away the heat generated during the grinding process, thereby reducing the impact of thermal stress on the sanding wheel body 1 and helping to prevent structural damage to the sanding wheel body 1. During the grinding process of the sanding wheel body 1, high-frequency micro-amplitude vibrations are generated. The damping ring 8 can effectively consume the vibration energy generated by the sanding wheel body 1 through its own characteristics, which helps to improve the stability of the sanding wheel body 1 during use.

[0022] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A high stability polyurethane abrasive foamed buffing wheel comprising: A sanding wheel body (1) is characterized in that a ventilation cavity (2) is opened inside the sanding wheel body (1), and a plurality of air inlets (3) are opened inside the sanding wheel body (1). The lower ends of the plurality of air inlets (3) are connected to the interior of the ventilation cavity (2), and the upper ends of the plurality of air inlets (3) extend to the exterior of the sanding wheel body (1). Annular grooves (4) are opened on both sides of the sanding wheel body (1), and a plurality of heat dissipation holes (5) are opened on the inner walls of the two annular grooves (4). One end of the plurality of heat dissipation holes (5) is connected to the interior of the ventilation cavity (2). The sanding wheel body (1) has multiple mounting holes (6) through its side. Each mounting hole (6) has a mounting rod (7) inside it. A damping ring (8) is fitted around the mounting rod (7). A mounting groove (9) is opened inside one end of the mounting rod (7). Two limiting rods (10) are slidably connected inside the mounting groove (9). A shaped block (11) is slidably connected between the two limiting rods (10). The end of the limiting rod (10) away from the shaped block (11) extends to the outside of the mounting rod (7). A bolt (12) is threaded inside the mounting rod (7). The lower end of the bolt (12) is rotatably connected to the upper surface of the shaped block (11). A limiting slider (13) is fixedly connected to the upper surface of the limiting rod (10). The limiting slider (13) is slidably connected to the top surface inside the mounting groove (9) through a sliding groove. The side of the end of the limiting rod (10) extending to the outside of the mounting rod (7) is in contact with the side of the sanding wheel body (1).

2. A high stability polyurethane abrasive foamed buffing wheel as claimed in claim 1, wherein, The multiple air inlets (3) are arranged in a ring, the multiple air inlets (3) are evenly arranged, and the air inlets (3) are arranged in an arc shape.

3. The high-stability polyurethane abrasive foamed sanding wheel according to claim 1, characterized in that, The plurality of mounting holes (6) are arranged in a ring and are evenly distributed.

4. The high-stability polyurethane abrasive foam sanding wheel according to claim 1, characterized in that, The longitudinal section of the irregular block (11) is an isosceles trapezoid, and both sides of the irregular block (11) are slidably connected to the inner wall of the mounting groove (9).

5. The high-stability polyurethane abrasive foamed sanding wheel according to claim 1, characterized in that, Both of the limiting rods (10) have a beveled surface at one end near the irregular block (11).

6. The high-stability polyurethane abrasive foamed sanding wheel according to claim 1, characterized in that, The longitudinal section of the mounting groove (9) is square.

7. The high-stability polyurethane abrasive foam sanding wheel according to claim 1, characterized in that, The mounting hole (6) is located between two adjacent air inlets (3), and the outer diameter of the damping ring (8) is the same as the diameter of the mounting hole (6).

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