A wear-resistant resin grinding wheel piece convenient to install

Abstract

The utility model discloses a wear -resisting resin grinding wheel piece convenient to installation belongs to the field of grinding, including polisher main part, polisher main part one side fixedly connected with the protective cover, the center of protective cover is rotatably connected with the rotation disc of polishing machine main part motor output shaft fixed connection, the outside of rotation disc is equipped with the grinding wheel main part, the outward face of rotation disc is equipped with locking assembly, locking assembly includes the cross -piece of fixed connection on the rotation disc, through setting up with the cross -piece of rotation disc fixed and the first cross -groove of grinding wheel main part center, has realized the quick pre -positioning of grinding wheel piece, has guaranteed the accurate centering of installation initial stage, when installing, only need to press into the fixed part, and the fixed hook is locked in the locking groove under the action of guide inclined plane, has realized the one -key type locking of bare -handed, has got rid of the dependence of special tool, also only needs reverse operation when disassembling, has improved the efficiency of loading and unloading greatly.

Description

Technical Field

[0001] This utility model belongs to the field of grinding technology, specifically relating to a wear-resistant resin grinding wheel that is easy to install. Background Technology

[0002] Resin-bonded grinding wheels are a common grinding and cutting tool widely used in the processing of materials such as metal and stone. They are typically made of resin binder, abrasive, and reinforcing materials (such as fiberglass mesh). They are mounted on the shaft of power equipment such as angle grinders and cutting machines through a central mounting hole. Traditional mounting methods mainly rely on the mechanical clamping of a rotating disc, flange, and nut. However, this installation method has many drawbacks. The installation and replacement process requires special tools, which is cumbersome, time-consuming, and inefficient. Especially when different specifications of grinding wheels need to be changed frequently on the construction site, it greatly affects work efficiency. If the nut is not tightened enough or loosens under high-intensity vibration, it will cause slippage between the grinding wheel and the rotating disk, which not only affects the grinding effect, but also poses a major safety hazard of the grinding wheel falling off and flying out, threatening the personal safety of the operators. Utility Model Content

[0003] The purpose of this invention is to provide a wear-resistant resin grinding wheel that is easy to install, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant resin grinding wheel that is easy to install, comprising a grinding machine body, a protective cover fixedly connected to one side of the grinding machine body, a rotating disk rotatably connected to the center of the protective cover and fixedly connected to the output shaft of the motor of the grinding machine body, a grinding wheel body sleeved on the outside of the rotating disk, and a locking component provided on the outer side of the rotating disk.

[0005] In a preferred embodiment, the locking assembly includes a cross member fixedly connected to the rotating disk, and the grinding wheel body has a central groove inside, with a first cross groove adapted to the cross member inside the central groove.

[0006] In a preferred embodiment, the locking assembly further includes a fixing member, the fixing member having a second cross groove inside, and the outward end of the cross member extending through and into the interior of the second cross groove.

[0007] In a preferred embodiment, the rotating disk is fixedly connected with four arc-shaped locking members at equal intervals in a ring around the axis of the cross member, and the interior of the central groove is provided with four auxiliary grooves that are adapted to the locking members.

[0008] In a preferred embodiment, four arc-shaped fixing hooks are fixedly connected in a ring on the side of the fixing member facing the rotating disk. Each locking member has a locking groove inside that matches the fixing hook, and each locking member has a guide slope at its outward end.

[0009] In a preferred embodiment, a fixing ring is fixedly connected to the side of the fixing member facing the central groove. Multiple balls that fit against the inner wall of the central groove are rotatably connected to the outer wall of the fixing ring at equal intervals. Two auxiliary protrusions are provided on the outer side of the fixing ring.

[0010] In a preferred embodiment, both the fixing component and the rotating disk are integrally injection molded components.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This easy-to-install wear-resistant resin grinding wheel achieves rapid pre-positioning of the grinding wheel by setting a cross-shaped component that is fixed to the rotating disk and a first cross groove in the center of the grinding wheel body. This ensures accurate alignment in the initial stage of installation. During installation, simply press the fixing component in, and the fixing hook slides in and locks in the locking groove under the action of the guide slope. This achieves one-click locking that can be completed by hand, eliminating the need for special tools. Disassembly is also only required by reversing the operation, which greatly improves the efficiency of loading and unloading. This easy-to-install wear-resistant resin grinding wheel provides additional torque-transmitting contact area in the circumferential direction through the cooperation of the arc-shaped locking element and the auxiliary groove. This effectively enhances the structural stability and transmission reliability of the grinding wheel when subjected to huge torsional torque, and prevents slippage that may occur during operation. The ball bearings greatly reduce the frictional resistance when the fixing element rotates and locks in the central groove, making manual operation more effortless and smooth, and improving the user experience. Attached Figure Description

[0012] Figure 1 This is a front view of the structure of this utility model; Figure 2 This is a partial cross-sectional view of the structure of this utility model; Figure 3 for Figure 2 Enlarged view of point A; Figure 4 This is a schematic diagram of the fit of the structure of this utility model.

[0013] In the diagram: 1. Grinding machine body; 2. Protective cover; 201. Rotary disc; 202. Cross joint; 203. Locking component; 204. Locking groove; 205. Guide slope; 3. Grinding wheel body; 301. Center groove; 302. First cross groove; 303. Auxiliary groove; 4. Fixing component; 401. Fixing hook; 402. Second cross groove; 404. Fixing ring; 405. Ball bearing; 406. Auxiliary protrusion. Detailed Implementation

[0014] The present invention will be further described below with reference to the embodiments.

[0015] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0016] Please see Figures 1-4 This utility model provides a wear-resistant resin grinding wheel that is easy to install, including a grinding machine body 1. A protective cover 2 is fixedly connected to one side of the grinding machine body 1. A rotating disk 201, which is fixedly connected to the output shaft of the motor of the grinding machine body 1, is rotatably connected to the center of the protective cover 2. A grinding wheel body 3 is sleeved on the outside of the rotating disk 201. A locking component is provided on the outer side of the rotating disk 201. The locking component includes a cross member 202 fixedly connected to the rotating disk 201. A central groove 301 is opened inside the grinding wheel body 3. A first cross groove 302 adapted to the cross member 202 is opened inside the central groove 301. The locking component also includes a fixing member 4. A second cross groove 402 is opened inside the fixing member 4. The outer end of the cross member 202 passes through and extends into the interior of the second cross groove 402. Four arc-shaped locking members 203 are fixedly connected in a ring at equal intervals around the axis of the cross member 202 on the outer side of the rotating disk 201. Four auxiliary grooves 303 adapted to the locking members 203 are opened in a ring inside the central groove 301. Before installing the grinding wheel, ensure that the main body 1 of the grinder is powered off to ensure operational safety, and prepare the main body 3 of the grinding wheel to be installed. Bring the grinding wheel body 3 close to the rotating disk 201, aligning the cross member 202 on the rotating disk 201 with the first cross groove 302 in the center groove 301 of the grinding wheel body 3. Since the cross member 202 and the first cross groove 302 are compatible in shape, this structure can achieve rapid pre-positioning of the grinding wheel body 3, ensuring that the grinding wheel body 3 can be accurately centered in the initial stage of installation and avoiding deviation during the installation process.

[0017] In this embodiment, four arc-shaped fixing hooks 401 are fixedly connected in an annular shape on the side of the fixing member 4 facing the rotating disk 201. Each locking member 203 has a locking groove 204 adapted to the fixing hook 401 inside. Each locking member 203 has a guide slope 205 at its outward end. A fixing ring 404 is fixedly connected on the side of the fixing member 4 facing the central groove 301. Multiple balls 405 that fit against the inner wall of the central groove 301 are rotatably connected in an annular shape on the outer wall of the fixing ring 404 at equal intervals. Two auxiliary protrusions 406 are provided on the outer side of the fixing ring 404. The fixing member 4 and the rotating disk 201 are both integral injection molded components. Press the fixing member 4 toward the rotating disk 201. During the pressing process, the second cross groove 402 inside the fixing member 4 will cooperate with the outward end of the cross member 202 to further ensure the accuracy of the installation. At the same time, the fixing hook 401 on the fixing member 4 will contact the guide slope 205 at the outward end of the locking member 203. The design of the guide slope 205 plays a guiding role. As the fixing member 4 is continuously pressed in, the fixing hook 401 will slide smoothly into the locking member 203 along the guide slope 205 and finally be locked into the locking groove 204 that matches the fixing hook 401. When the fixing hook 401 is fully locked into the locking groove 204, the fixing member 4 is locked to the grinding wheel body 3 with one click. At this time, the grinding wheel body 3 is firmly installed on the rotating disk 201. During the pressing of the fastener 4, the ball bearings 405 on the retaining ring 404 will come into contact with the inner wall of the center groove 301 and roll relative to each other. The presence of the ball bearings 405 greatly reduces the frictional resistance when the fastener 4 rotates and locks in the center groove 301, making it easier and smoother for the operator to press the fastener 4 in by hand, thus improving the user experience of the installation. The two auxiliary protrusions 406 on the outside of the retaining ring 404 can provide better leverage points when the operator presses the fastener 4 in, making the operation more convenient. After installation, check again whether the grinding wheel body 3 is installed firmly. Gently shake the grinding wheel body 3 to observe whether there is any looseness. At the same time, check whether the fit between each part is tight. Only after ensuring that there are no abnormalities can the power supply of the grinding machine body 1 be turned on to carry out subsequent grinding and cutting work. When it is necessary to replace the grinding wheel body 3, first ensure that the grinding machine body 1 is in a power-off state. Then, disassemble the grinding wheel by reversing the operation. That is, apply a force to the fixing part 4 in the opposite direction to that during installation. Since there is a certain elastic deformation space between the fixing hook 401 and the locking groove 204, under the action of the reverse force, the fixing hook 401 will slide out of the locking groove 204 and exit the locking part 203 along the guide slope 205. Then, remove the fixing part 4 from the rotating disk 201. Finally, remove the grinding wheel body 3 from the rotating disk 201 to complete the disassembly. Traditional grinding wheel installation methods require specialized tools, which are cumbersome and time-consuming. This is especially true when different specifications of grinding wheels need to be frequently changed on the construction site, which can greatly affect work efficiency. However, this utility model achieves quick installation and removal of grinding wheels by pre-positioning the cross-shaped part 202 and the first cross groove 302, and by using a one-click locking design between the fixing hook 401 and the locking groove 204. Operators can complete the entire process by hand without the need for specialized tools, which greatly saves time and manpower and improves loading and unloading efficiency. The design of the arc-shaped locking element 203 and the auxiliary groove 303 provides an additional torque-transmitting contact area for the grinding wheel body 3 in the circumferential direction. When the grinding wheel is subjected to a huge torsional torque during operation, this structure can effectively disperse stress, enhance the connection strength between the grinding wheel and the rotating disk 201, prevent slippage, ensure the stability and reliability of grinding and cutting work, and improve the processing quality. The ball bearings 405 on the fixing ring 404 reduce the frictional resistance when the fixing element 4 rotates and locks in the central groove 301, making it easier and smoother for the operator to install and remove the fixing element 4. At the same time, the auxiliary protrusion 406 provides the operator with a better point of leverage, further improving the convenience and comfort of operation and optimizing the overall operating experience.

[0018] The working principle and usage process of this utility model are as follows: First, before installing the grinding wheel, ensure that the main body 1 of the grinder is powered off to ensure safe operation, and prepare the grinding wheel body 3. Place the grinding wheel body 3 close to the rotating disk 201, so that the cross part 202 on the rotating disk 201 is aligned with the first cross groove 302 in the center groove 301 of the grinding wheel body 3, so as to achieve quick pre-positioning and avoid installation offset. Press the fixing part 4 toward the rotating disk 201. Its internal second cross groove 402 and the outward end of the cross part 202 cooperate to ensure accurate installation. The fixing hook 401 slides along the guide slope 205 of the locking part 203 and is locked into the locking groove 204 to achieve one-click locking. When pressing in, the ball 405 on the fixing ring 404 reduces frictional resistance, and the auxiliary protrusion 406 provides a point of force, making the operation easier and smoother. After installation, check whether the grinding wheel body 3 is secure and whether the parts fit tightly. After confirming that there are no abnormalities, turn on the power of the grinding machine body 1 to perform grinding and cutting. When replacing the grinding wheel body 3, first ensure that the power to the grinding machine body 1 is off, apply a reverse force to the fixing part 4, and use the elastic deformation of the fixing hook 401 and the locking groove 204 to make the fixing hook 401 exit the locking groove 204 and slide out along the guide slope 205. Remove the fixing part 4 and the grinding wheel body 3 to complete the disassembly.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant resin grinding wheel that is easy to install, comprising a grinding machine body (1), characterized in that: A protective cover (2) is fixedly connected to one side of the main body (1) of the grinding machine. A rotating disk (201) is rotatably connected to the center of the protective cover (2) and fixedly connected to the output shaft of the motor of the main body (1) of the grinding machine. A grinding wheel body (3) is sleeved on the outside of the rotating disk (201). A locking component is provided on the outer side of the rotating disk (201).

2. The wear-resistant resin grinding wheel that is easy to install according to claim 1, characterized in that: The locking assembly includes a cross member (202) fixedly connected to the rotating disk (201), and a central groove (301) is provided inside the grinding wheel body (3). The central groove (301) is provided inside the first cross groove (302) that is adapted to the cross member (202).

3. The wear-resistant resin grinding wheel that is easy to install according to claim 2, characterized in that: The locking assembly also includes a fastener (4), the fastener (4) having a second cross groove (402) inside, the outward end of the cross member (202) penetrating and extending into the interior of the second cross groove (402).

4. The wear-resistant resin grinding wheel that is easy to install according to claim 3, characterized in that: The rotating disk (201) has four arc-shaped locking members (203) fixedly connected in a ring at equal intervals around the axis of the cross member (202) on the outside. The center groove (301) has four auxiliary grooves (303) that are adapted to the locking members (203) in a ring inside.

5. The wear-resistant resin grinding wheel that is easy to install according to claim 4, characterized in that: The fixing member (4) has four arc-shaped fixing hooks (401) fixedly connected in a ring on the side facing the rotating disk (201). Each locking member (203) has a locking groove (204) adapted to the fixing hook (401) inside. Each locking member (203) has a guide slope (205) at its outward end.

6. The wear-resistant resin grinding wheel that is easy to install according to claim 5, characterized in that: The fixing member (4) has a fixing ring (404) fixedly connected to the side facing the central groove (301). The outer wall of the fixing ring (404) has a plurality of balls (405) that are equidistantly connected to the inner wall of the central groove (301). The fixing ring (404) has two auxiliary protrusions (406) on the outer side.

7. The wear-resistant resin grinding wheel that is easy to install according to claim 6, characterized in that: The fixing component (4) and the rotating disk (201) are both integral injection molded components.

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