A conveniently detachable grinding wheel assembly

Abstract

The utility model discloses a grinding wheel assembly of convenient dismantlement, including grinding wheel main part and transmission shaft, the central inner wall of grinding wheel main part is equipped with two left and right height same's clamping groove, the top end of transmission shaft is equipped with the top groove, and the inner wall of top groove is equipped with two left and right corresponding expansion slots, and the other end of expansion slot is located the outside wall surface of transmission shaft, and the inside slide of expansion slot is connected with the clamping block, and the inside central rotation of top groove is connected with the rotating block, and the surface of rotating block is penetrated with fixed bolt, and fixed bolt is connected with rotating block and transmission shaft thread simultaneously, the utility model discloses the expansion slot of being set up in transmission shaft and the built -in slidable clamping block, when the grinding wheel main part is inserted transmission shaft, and the clamping block can be accurately embedded the clamping groove of grinding wheel main part and realize the primary fixation, and then the rotating block in the top groove is used to limit the clamping block. Compared with traditional multi -screw bolt fixed mode, the tedious operation of aligning and screwing and dismantling multiple groups of bolts is saved, and the dismounting convenience is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of grinding wheel technology, specifically a grinding wheel assembly that is easy to disassemble. Background Technology

[0002] In industrial fields such as machining, hardware manufacturing, and mold repair, grinding wheels are core tools for achieving precision grinding, burr removal, and shape finishing of workpiece surfaces. Their applications cover almost all scenarios, from small parts processing to large equipment maintenance. With the continuous improvement of production efficiency and processing accuracy requirements in modern manufacturing, the frequency of use and replacement needs of grinding wheels have increased significantly.

[0003] Currently, traditional grinding wheel assemblies typically use multiple sets of bolts through flanges to clamp the grinding wheel body to the drive shaft. During installation, the grinding wheel body must be fitted onto the drive shaft, and the bolt holes on the flange and grinding wheel must be aligned one by one before tightening each bolt to ensure the grinding wheel is secure. This process is not only cumbersome but also prone to uneven bolt tension, leading to coaxiality deviations in the grinding wheel, affecting grinding accuracy, and severely limiting grinding wheel replacement efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a grinding wheel assembly that is easy to disassemble, which solves the problem mentioned in the background art that the current traditional grinding wheel assembly generally uses multiple sets of bolts to clamp the grinding wheel body and the drive shaft, which requires tightening each bolt one by one, and seriously restricts the grinding wheel replacement efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding wheel assembly that is easy to disassemble, comprising a grinding wheel body and a drive shaft. The inner wall of the grinding wheel body has two slots of the same height on the left and right sides. The top of the drive shaft has a top groove. The inner wall of the top groove has two corresponding telescopic grooves on the left and right sides. The other end of the telescopic groove is located on the outer wall surface of the drive shaft, and a locking block is slidably connected to the inner side of the telescopic groove. A rotating block is rotatably connected to the center of the top groove. A fixing bolt passes through the surface of the rotating block. The fixing bolt is threadedly connected to both the rotating block and the drive shaft.

[0006] In this technical solution, after the grinding wheel body is inserted into the drive shaft, the locking block can be precisely embedded into the locking groove of the grinding wheel body to achieve initial fixation; then the rotating block in the top groove is used to limit the locking block, and finally only one fixing bolt is needed to pass through the rotating block and connect to the drive shaft thread to complete the overall fixation; compared with the traditional multi-bolt fixing method, it saves the tedious operation of aligning and unscrewing multiple sets of bolts one by one, greatly improving the convenience of disassembly and assembly.

[0007] Preferably, the bottom of the telescopic groove is provided with a limiting groove, the bottom of the card block is fixedly connected with a slider, the slider is located inside the limiting groove and is slidably connected to the limiting groove, and a spring is fixedly connected between the slider and the inner wall of the limiting groove.

[0008] Preferably, a protrusion is provided at the bottom edge of the inner wall of the grinding wheel body directly below the slot, and the diameter of the drive shaft is the same as the diameter of the central circular hole of the grinding wheel body.

[0009] Preferably, the top edge of the drive shaft is provided with two corresponding upper grooves, the bottom of the upper grooves are connected to one end of the transverse groove provided on the side wall of the drive shaft, and the other end of the transverse groove is connected to the lower groove provided on the side wall of the drive shaft.

[0010] Preferably, the left and right ends of the rotating block are in contact with one end of the left and right side locking blocks, respectively, and the other end of the locking block passes through the telescopic groove and is located outside the drive shaft.

[0011] Preferably, a lever is fixedly connected to the top edge of the end of the locking block near the rotating block, and the top of the lever is located outside the top groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model utilizes a telescopic groove in the drive shaft with a built-in sliding locking block. When the grinding wheel body is inserted into the drive shaft, the locking block precisely engages with the groove in the grinding wheel body for initial fixation. A rotating block within the top groove then limits the locking block's position. Finally, only one fixing bolt is needed to thread the rotating block through the drive shaft to complete the overall fixation. Furthermore, this bolt only serves to limit the rotation block's position, experiencing less shear force and resulting in a longer service life. Compared to traditional multi-bolt fixing methods, this eliminates the tedious operation of aligning and unscrewing multiple sets of bolts, significantly improving the ease of assembly and disassembly.

[0013] 2. This utility model features an upper groove and a lower groove on the surface of the transmission shaft, connected by a transverse groove. During the insertion of the grinding wheel body, the protrusion on its inner wall enters through the upper groove, passes through the transverse groove, and finally enters the lower groove. At the same time, the locking block is simultaneously embedded in the locking groove to complete axial fixation. The two form a double positioning cooperation, which not only avoids the circumferential rotation and axial movement of the grinding wheel during the grinding process, but also further ensures the coaxiality of the grinding wheel body and the transmission shaft, significantly improving the stability of the grinding wheel during operation and ensuring grinding accuracy. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is an overall view of the present invention; Figure 2 This is a diagram showing the positional relationship between the grinding wheel body and the drive shaft of this utility model; Figure 3 This is a schematic diagram of the transmission shaft structure of this utility model; Figure 4 This is a cross-sectional schematic diagram of the present invention.

[0015] In the diagram: 1. Grinding wheel body; 101. Slot; 102. Protrusion; 2. Drive shaft; 201. Top groove; 202. Upper groove; 203. Lower groove; 204. Horizontal groove; 3. Telescopic groove; 4. Locking block; 401. Slider; 402. Spring; 5. Rotating block; 501. Fixing bolt; 6. Limiting groove; 7. Pulling block. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description will further elaborate on them in conjunction with specific embodiments.

[0017] A grinding wheel assembly that is easy to disassemble, see [link to documentation]. Figures 1 to 4 The device includes a grinding wheel body 1 and a drive shaft 2. The inner wall of the grinding wheel body 1 has two slots 101 of the same height on the left and right sides. The top of the drive shaft 2 has a top groove 201. The inner wall of the top groove 201 has two corresponding telescopic grooves 3 on the left and right sides. The other end of the telescopic groove 3 is located on the outer wall surface of the drive shaft 2. A locking block 4 is slidably connected to the inner side of the telescopic groove 3. A rotating block 5 is rotatably connected to the center of the top groove 201. A fixing bolt 501 passes through the surface of the rotating block 5. The fixing bolt 501 is threadedly connected to both the rotating block 5 and the drive shaft 2.

[0018] In the above technical solution, the central circular hole of the grinding wheel body 1 is first aligned with the drive shaft 2 and inserted. The locking block 4 is pushed back into the telescopic groove 3 until the locking groove 101 on the inner wall of the grinding wheel body 1 is aligned with the telescopic groove 3 of the drive shaft 2. At this time, the locking block 4 slides along the telescopic groove 3 and is embedded in the locking groove 101, realizing the initial axial positioning of the grinding wheel body 1 and the drive shaft 2. Then, the rotating block 5 in the top groove 201 is rotated so that its two ends are in close contact with the inner side of the left and right locking blocks 4 respectively, forming lateral support for the locking block 4. Finally, the fixing bolt 501 is passed through the rotating block 5 and threaded onto the drive shaft 2. The position of the rotating block 5 is locked by the preload of the bolt, thereby fixing the locking block 4 and completing the overall assembly. When disassembling, it is only necessary to loosen the fixing bolt 501, rotate the rotating block 5 to disengage from the locking block 4, and push the locking block 4 back into the telescopic groove 3 to remove the grinding wheel body 1. Compared to traditional multi-bolt fixing structures, this structure can complete the entire process locking with only one fixing bolt 501, eliminating the need to align and tighten multiple sets of bolts one by one, greatly improving disassembly and assembly efficiency; the lateral support of the rotating block 5 on the locking block 4 can prevent the locking block 4 from shifting during grinding vibration, and the thread locking of the fixing bolt 501 ensures connection stability.

[0019] Specifically, such as Figure 4 As shown, the bottom of the telescopic groove 3 is provided with a limiting groove 6, and the bottom of the card block 4 is fixedly connected with a slider 401. The slider 401 is located inside the limiting groove 6 and is slidably connected to the limiting groove 6. A spring 402 is fixedly connected between the slider 401 and the inner wall of the limiting groove 6.

[0020] In the above technical solution, the spring 402 pushes the locking block 4 to drive the bottom slider 401 to slide along the limiting groove 6, and the spring 402 puts it in a compressed state; when the slot 101 of the grinding wheel body 1 is aligned with the telescopic groove 3, the spring 402 pushes the slider 401 to slide, thereby driving the locking block 4 to automatically extend out of the telescopic groove 3 and embed into the slot 101, completing the initial positioning.

[0021] Furthermore, such as Figure 3 and Figure 4 As shown, a protrusion 102 is provided at the bottom edge of the inner wall of the grinding wheel body 1 directly below the slot 101. The diameter of the drive shaft 2 is the same as the diameter of the central circular hole of the grinding wheel body 1. The top edge of the drive shaft 2 is provided with two corresponding upper grooves 202. The bottom of the upper groove 202 is connected to one end of the horizontal groove 204 provided on the side wall of the drive shaft 2, and the other end of the horizontal groove 204 is connected to the lower groove 203 provided on the side wall of the drive shaft 2.

[0022] In the above technical solution, when fitting the grinding wheel body 1, first align the protrusion 102 on the inner wall of the grinding wheel body 1 with the upper groove 202 of the drive shaft 2, and slide the grinding wheel body 1 downward along the upper groove 202 until the protrusion 102 reaches the bottom of the upper groove 202; then rotate the grinding wheel body 1, causing the protrusion 102 to slide along the transverse groove 204. When the protrusion 102 slides to the end of the transverse groove 204, the retaining groove 101 on the inner wall of the grinding wheel body 1 is just aligned with the telescopic groove 3 of the drive shaft 2. At this time, gently push the grinding wheel body 1 downward, and the protrusion 102 enters the lower groove 203 and completes the circumferential limit. At the same time, the retaining block 4 is embedded in the retaining groove 101 under the action of the spring 402, forming a double fixation. This not only avoids the circumferential rotation and axial movement of the grinding wheel during the grinding process, but also further ensures the coaxiality of the grinding wheel body 1 and the drive shaft 2, significantly improving the stability of the grinding wheel during operation and ensuring grinding accuracy.

[0023] It is worth noting that, such as Figure 3As shown, the left and right ends of the rotating block 5 are in contact with one end of the left and right locking blocks 4 respectively. The other end of the locking block 4 passes through the telescopic groove 3 and is located outside the drive shaft 2. A lever 7 is fixedly connected to the top edge of the locking block 4 near the rotating block 5. The top of the lever 7 is located outside the top groove 201. When it is necessary to disassemble the grinding wheel, first remove the fixing bolt 501 normally, then rotate the rotating block 5 to release the restriction on the locking block 4, and then pinch the lever 7 towards the center of the top groove 201. The lever 7 drives the locking block 4 to slide along the telescopic groove 3 and disengage from the locking groove 101. At this time, lifting the grinding wheel body 1 will allow the protrusion 102 on its inner wall to disengage normally along the lower groove 203, the horizontal groove 204 and the upper groove 202, thus achieving disassembly, which is convenient and quick.

[0024] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

Claims

1. A grinding wheel assembly that is easy to disassemble, comprising a grinding wheel body (1) and a drive shaft (2), characterized in that: The grinding wheel body (1) has two slots (101) of the same height on the inner wall of the center. The top of the drive shaft (2) has a top groove (201). The inner wall of the top groove (201) has two corresponding telescopic grooves (3). The other end of the telescopic groove (3) is located on the outer wall surface of the drive shaft (2). The inner side of the telescopic groove (3) is slidably connected to a locking block (4). The center of the top groove (201) is rotatably connected to a rotating block (5). A fixing bolt (501) passes through the surface of the rotating block (5). The fixing bolt (501) is threadedly connected to both the rotating block (5) and the drive shaft (2).

2. The easily detachable grinding wheel assembly according to claim 1, characterized in that: The bottom of the telescopic groove (3) is provided with a limiting groove (6), and the bottom of the card block (4) is fixedly connected with a slider (401). The slider (401) is located inside the limiting groove (6) and is slidably connected to the limiting groove (6). A spring (402) is fixedly connected between the slider (401) and the inner wall of the limiting groove (6).

3. The easily detachable grinding wheel assembly according to claim 1, characterized in that: A protrusion (102) is provided at the bottom edge of the inner wall of the grinding wheel body (1) directly below the slot (101), and the diameter of the drive shaft (2) is the same as the diameter of the central hole of the grinding wheel body (1).

4. The easily detachable grinding wheel assembly according to claim 1, characterized in that: The top edge of the drive shaft (2) is provided with two corresponding upper grooves (202). The bottom of the upper groove (202) is connected to one end of the transverse groove (204) provided on the side wall of the drive shaft (2), and the other end of the transverse groove (204) is connected to the lower groove (203) provided on the side wall of the drive shaft (2).

5. The easily detachable grinding wheel assembly according to claim 1, characterized in that: The left and right ends of the rotating block (5) are in contact with one end of the left and right side locking blocks (4), respectively, and the other end of the locking block (4) passes through the telescopic groove (3) and is located outside the transmission shaft (2).

6. The easily detachable grinding wheel assembly according to claim 1, characterized in that: The top edge of the card block (4) near the rotating block (5) is fixedly connected to a lever (7), and the top of the lever (7) is located outside the top groove (201).

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