Metal dry grinding wheel with anti-falling structure

Abstract

The utility model discloses a metal dry grinding wheel with an anti-falling structure, which relates to the technical field of metal dry grinding wheels and comprises a spindle rod, one end of the spindle rod is fixedly connected with a fixed flange, the center of the rod wall of the spindle rod is slidably connected with a grinding wheel, and the other end of the spindle rod is slidably connected with a mounting flange. The main shaft rod comprises a main shaft rod body and a mounting flange, the other end of the main shaft rod body penetrates through the mounting flange and is fixedly connected with a threaded end, the side wall of the mounting flange is rotationally connected with a right-hand thread sleeve, and the right-hand thread sleeve is in threaded connection with the threaded end. Therefore, the problems that an existing metal dry grinding wheel lacks an anti-falling structure during use, the bolt is prone to loosening due to vibration after long-time use, and the metal dry grinding wheel falls off in the grinding process seriously are solved.

Description

Technical Field

[0001] This utility model relates to the field of metal dry grinding wheel technology, and specifically to a metal dry grinding wheel with an anti-detachment structure. Background Technology

[0002] Metal dry grinding wheels are tools driven by a drive device for grinding and polishing the bottom of objects such as floors, walls, ceilings, and cabinet panels. Grinding wheels are widely used in the construction industry, and as a mold, they are suitable for removing edges, welds, burrs, etc. on the surface of metal materials. Grinding work can be carried out without the assistance of water-based agents such as coolants.

[0003] Existing metal dry grinding wheels are installed and connected to the drive spindle via flanges and bolts. During use, the high-speed rotating dry grinding wheel vibrates after contacting the material. Over time, the bolts are subjected to vibration and may rotate, causing them to loosen. The dry grinding wheel may also wobble during rotation, which can lead to the metal dry grinding wheel falling off during the grinding process, causing great harm to the machine and the workers. Utility Model Content

[0004] In view of the problems existing in the current metal dry grinding wheel with anti-detachment structure, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a metal dry grinding wheel with an anti-detachment structure, which solves the problem that existing metal dry grinding wheels lack an anti-detachment structure during use, and the bolts are prone to loosening due to vibration after long-term use, which can seriously cause the metal dry grinding wheel to fall off during grinding.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A metal dry grinding wheel with an anti-fall-off structure includes a main shaft, one end of which is fixedly connected to a fixing flange, a grinding wheel is slidably connected to the center of the shaft wall, and the other end of the main shaft is slidably connected to a mounting flange. The other end of the main shaft passes through the mounting flange and is fixedly connected to a threaded end.

[0008] The mounting flange has a rotatably connected positive threaded sleeve on its side wall. The positive threaded sleeve is threaded to the threaded end. One end of the positive threaded sleeve has an insertion port and a reverse threaded rod is inserted into it. One end of the threaded end has a reverse threaded opening. The reverse threaded rod passes through the insertion port and is threaded to the reverse threaded opening. The side wall surface of the grinding wheel has multiple reinforcing through holes. A reinforcing mechanism is provided between the mounting flange and the fixed flange, which is inserted into the multiple reinforcing through holes. A fixing mechanism is provided between the reverse threaded rod and the positive threaded sleeve.

[0009] Preferably, the reinforcement mechanism includes reinforcement rods, connecting chambers, threaded limiting ports, and threaded limiting rods. Four reinforcement rods are fixedly connected to the inner side wall of the fixed flange, and connecting chambers are fixedly connected to both ends of the outer side wall of the mounting flange. Each reinforcement rod has a threaded limiting port at one end of its rod wall. Threaded limiting rods are inserted into the top of the connecting chambers at both ends through openings. One end of each threaded limiting rod is threadedly connected to two threaded limiting ports.

[0010] Preferably, the fixing mechanism includes a limiting chamber, an L-shaped insert rod, a limiting insertion hole, and a spring. The limiting chamber is fixedly connected to the side wall of the positive threaded sleeve. An L-shaped insert rod is inserted into the cavity of the limiting chamber through an opening. The rod wall of the negative threaded rod has multiple limiting insertion holes. One end of the L-shaped insert rod is inserted into one of the limiting insertion holes. A spring is sleeved on the rod wall of the limiting insertion hole.

[0011] Preferably, a retaining seat is fixedly connected to one end of the top of the limiting chamber, and one end of the L-shaped insert is engaged with the retaining seat.

[0012] Furthermore, oil-resistant rubber gaskets are fixedly connected to the inner walls of both the fixed flange and the mounting flange.

[0013] Preferably, the other end of the reverse threaded rod is fixedly connected to a rotating handle.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] This invention utilizes a positive threaded sleeve rotatably connected to the side wall of the mounting flange. By threadedly connecting to the threaded end, it drives the mounting flange to move, pressing the grinding wheel between the mounting flange and the fixed flange. A negative threaded rod is provided in the socket and threadedly connected to the negative threaded opening at the threaded end. The mounting flange can only move if the negative threaded rod and the positive threaded sleeve rotate in opposite directions. However, after being connected by the fixing mechanism, the negative threaded rod and the positive threaded sleeve cannot rotate, thus preventing loosening and the grinding wheel from falling off.

[0016] This utility model utilizes threaded limiting rods inserted into the top of the connecting compartments at both ends. By connecting with two threaded limiting ports, the threaded limiting rods limit the two reinforcing rods. Thus, the threaded limiting rods at both ends limit the four reinforcing rods.

[0017] This utility model utilizes an L-shaped insert rod inserted into the limiting cavity, which is then inserted into the limiting insertion hole under the pressure of a spring, thereby fixing the rotation direction between the positive threaded sleeve and the negative threaded rod. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the left side of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the right side of this utility model;

[0021] Figure 3 This is a top view of the structure of this utility model;

[0022] Figure 4 This is a top sectional view of the mounting flange of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Main spindle; 2. Fixed flange; 3. Grinding wheel; 4. Mounting flange; 5. Threaded end; 6. Positive thread sleeve; 7. Insert; 8. Reverse thread rod; 9. Reverse threaded port; 10. Reinforced through-hole; 11. Reinforced rod; 12. Connecting chamber; 13. Threaded limit port; 14. Threaded limit rod; 15. Limiting chamber; 16. L-shaped insert rod; 17. Limiting insertion hole; 18. Spring; 19. Card seat; 20. Oil-resistant rubber gasket; 21. Rotating handle. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model discloses a metal dry grinding wheel with an anti-detachment structure.

[0027] This utility model provides, for example Figure 1-4 The metal dry grinding wheel shown includes a main shaft 1, a fixed flange 2 is fixedly connected to one end of the main shaft 1, a grinding wheel 3 is slidably connected to the center of the shaft wall of the main shaft 1, a mounting flange 4 is slidably connected to the other end of the main shaft 1, and the other end of the main shaft 1 passes through the mounting flange 4 and is fixedly connected to a threaded end 5.

[0028] A positive threaded sleeve 6 is rotatably connected to the side wall of the mounting flange 4. The positive threaded sleeve 6 is threadedly connected to the threaded end 5. One end of the positive threaded sleeve 6 has a socket 7, into which a reverse threaded rod 8 is inserted. One end of the threaded end 5 has a reverse threaded opening 9. The reverse threaded rod 8 passes through the socket 7 and is threadedly connected to the reverse threaded opening 9. The side wall surface of the grinding wheel 3 has multiple reinforcing through holes 10. A reinforcing mechanism is provided between the mounting flange 4 and the fixed flange 2, which is inserted into the multiple reinforcing through holes 10. A fixing mechanism is provided between the reverse threaded rod 8 and the positive threaded sleeve 6. By using the positive threaded sleeve 6, which is threadedly connected to the threaded end 5, the mounting flange 4 is moved, pressing the grinding wheel 3 between the mounting flange 4 and the fixed flange 2. The fixing mechanism is used to fix the reverse threaded rod 8 and the multiple reinforcing through holes 10. A reinforced through-hole 10 is inserted to fix the grinding wheel 3 between the mounting flange 4 and the fixed flange 2. The reverse threaded rod 8 is threaded to the reverse threaded port 9 of the threaded end 5. Finally, the rotation direction between the reverse threaded rod 8 and the positive threaded sleeve 6 is fixed by a fixing mechanism. When vibration occurs, the reverse threaded rod 8 and the positive threaded sleeve 6 need to rotate in opposite directions to move. However, after being connected by the fixing mechanism, the reverse threaded rod 8 and the positive threaded sleeve 6 cannot rotate, thus preventing loosening and causing the grinding wheel 3 to fall off. This solves the problem that existing metal dry grinding wheels lack an anti-fall-off structure and are prone to loosening due to vibration after long-term use, which can seriously cause the metal dry grinding wheel to fall off during grinding.

[0029] To fix the grinding wheel 3 between the fixed flange 2 and the mounting flange 4, such as Figure 3 and 4 As shown, the reinforcement mechanism includes reinforcement rods 11, connecting chambers 12, threaded limiting ports 13, and threaded limiting rods 14. Four reinforcement rods 11 are fixedly connected to the inner wall of the fixed flange 2, and connecting chambers 12 are fixedly connected to both ends of the outer wall of the mounting flange 4. Each reinforcement rod 11 has a threaded limiting port 13 at one end of its rod wall. Threaded limiting rods 14 are inserted into the top of the connecting chambers 12 at both ends through openings. One end of each threaded limiting rod 14 is threadedly connected to two threaded limiting ports 13. By using the multiple reinforcement rods 11, the grinding wheel 3 is fixed between the fixed flange 2 and the mounting flange 4 through insertion into the corresponding reinforcement through ports 10. By using the threaded limiting rods 14 at both ends, which are threadedly connected to the two threaded limiting ports 13, the threaded limiting rods 14 limit the two reinforcement rods 11. Thus, the threaded limiting rods 14 at both ends limit the four reinforcement rods 11.

[0030] To fix the rotational direction between the positive threaded sleeve 6 and the negative threaded rod 8, such as Figure 1-4As shown, the fixing mechanism includes a limiting chamber 15, an L-shaped insert rod 16, a limiting insertion hole 17, and a spring 18. The side wall of the positive threaded sleeve 6 is fixedly connected to the limiting chamber 15. The L-shaped insert rod 16 is inserted into the cavity of the limiting chamber 15 through an opening. The rod wall of the negative threaded rod 8 has multiple limiting insertion holes 17. One end of the L-shaped insert rod 16 is inserted into one of the limiting insertion holes 17. The rod wall of the limiting insertion hole 17 is sleeved with a spring 18. By using the provided L-shaped insert rod 16, it is inserted into the limiting insertion hole 17 under the pressure of the spring 18, thereby fixing the rotation direction between the positive threaded sleeve 6 and the negative threaded rod 8.

[0031] In order to lock and limit the L-shaped plug 16, such as Figure 1 , 3 As shown in Figure 4, a retaining seat 19 is fixedly connected to one end of the top of the limiting chamber 15. One end of the L-shaped insert rod 16 is engaged with the retaining seat 19. By using the retaining seat 19, the L-shaped insert rod 16 is engaged and limited during installation, which facilitates the rotation of the reverse threaded rod 8.

[0032] To ensure uniform pressure distribution, such as Figure 3 and 4 As shown, oil-resistant rubber gaskets 20 are fixedly connected to the inner walls of both the fixed flange 2 and the mounting flange 4. The use of these oil-resistant rubber gaskets 20 ensures uniform pressure distribution.

[0033] To facilitate manual rotation of the reverse thread rod 8, such as Figure 1-4 As shown, the other end of the reverse threaded rod 8 is fixedly connected to a rotating handle 21, which facilitates manual rotation of the reverse threaded rod 8.

[0034] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A metal dry grinding wheel having a fall-off prevention structure, comprising a spindle shaft (1), characterized in that, One end of the main shaft (1) is fixedly connected to a fixed flange (2), a grinding wheel (3) is slidably connected to the center of the shaft wall of the main shaft (1), and the other end of the main shaft (1) is slidably connected to a mounting flange (4). The other end of the main shaft (1) passes through the mounting flange (4) and is fixedly connected to a threaded end (5). The side wall of the mounting flange (4) is rotatably connected to a positive thread sleeve (6), which is threaded to the threaded end (5). One end of the positive thread sleeve (6) is provided with a socket (7) and a reverse thread rod (8) is inserted therein. One end of the threaded end (5) is provided with a reverse thread opening (9). The reverse thread rod (8) passes through the socket (7) and is threaded to the reverse thread opening (9). The side wall surface of the grinding wheel (3) is provided with multiple reinforcing through holes (10). A reinforcing mechanism is provided between the mounting flange (4) and the fixed flange (2) to be inserted into the multiple reinforcing through holes (10). A fixing mechanism is provided between the reverse thread rod (8) and the positive thread sleeve (6).

2. The metal dry grinding wheel having a fall-off prevention structure according to claim 1, wherein The reinforcement mechanism includes a reinforcement rod (11), a connecting chamber (12), a threaded limiting port (13), and a threaded limiting rod (14). The inner wall of the fixed flange (2) is fixedly connected with four reinforcement rods (11). The outer walls of the mounting flange (4) are fixedly connected with connecting chambers (12) at both ends. One end of each reinforcement rod (11) is provided with a threaded limiting port (13). The top of the connecting chambers (12) at both ends is provided with a threaded limiting rod (14) inserted through an opening. One end of each threaded limiting rod (14) is threadedly connected to two threaded limiting ports (13).

3. The metal dry grinding wheel having a fall-off prevention structure according to claim 1, wherein The fixing mechanism includes a limiting chamber (15), an L-shaped insert rod (16), a limiting insertion hole (17), and a spring (18). The side wall of the positive thread sleeve (6) is fixedly connected to the limiting chamber (15). The L-shaped insert rod (16) is inserted into the cavity of the limiting chamber (15) through an opening. The rod wall of the negative thread rod (8) is provided with multiple limiting insertion holes (17). One end of the L-shaped insert rod (16) is inserted into one of the limiting insertion holes (17). The rod wall of the limiting insertion hole (17) is sleeved with a spring (18).

4. The metal dry grinding wheel having a fall-off preventing structure according to claim 3, wherein The top end of the limiting chamber (15) is fixedly connected to a card seat (19), and one end of the L-shaped plug (16) is engaged with the card seat (19).

5. The metal dry grinding wheel having a fall-off prevention structure according to claim 1, wherein The inner walls of both the fixed flange (2) and the mounting flange (4) are fixedly connected with oil-resistant rubber gaskets (20).

6. The metal dry grinding wheel having a fall-off prevention structure according to claim 1, wherein The other end of the reverse threaded rod (8) is fixedly connected to a rotating handle (21).

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