Grinding wheel mounting structure convenient to disassemble and assemble

Abstract

The utility model discloses a grinding wheel mounting structure convenient to disassemble and assemble, which comprises a rotating shaft and a grinding wheel body, the rotating shaft is connected with an external grinding machine driving shaft, the rotating shaft is fixedly connected with a limiting plate, the grinding wheel body is sleeved on the rotating shaft and abuts against one side of the limiting plate, the peripheral side of the rotating shaft is provided with an external thread, and the limiting plate is fixedly connected with the grinding wheel body. A positioning block is arranged on one side of the limiting plate, a limiting groove capable of being embedded with the positioning block is concavely formed in the inner circumferential side of the grinding wheel body, a pressing buckle is rotatably arranged on the limiting plate in the range of an inner ring of the grinding wheel body, a pressing ring is arranged on the outer threads in a threaded fit mode, and the diameter of the pressing ring is smaller than that of the inner ring of the grinding wheel body. The pressing ring can move along the external threads and abut against the pressing buckle, so that the pressing buckle rotates and is pressed on the grinding wheel body.

Description

Technical Field

[0001] The utility model relates to a grinding wheel installation structure which is convenient for disassembly and assembly. Background Art

[0002] Grinding wheel, also known as bonded abrasive tool, is a bonded abrasive tool that uses a binder to bond ordinary abrasives into a certain shape (mostly round with a through hole in the center) and has a certain strength. Grinding wheel is the most widely used abrasive tool. It rotates at high speed when used and can perform rough grinding, semi-finishing grinding and fine grinding on the outer circle, inner circle, plane and various surfaces of metal or non-metal workpieces, as well as grooving and cutting.

[0003] Existing grinding wheel slices are all fixed by bolts. When users need to disassemble and assemble the grinding wheel slices, they need to spend a lot of time to disassemble and assemble the bolts, which is very inconvenient and has poor practicality. Therefore, it is necessary to provide a grinding wheel slice installation structure that is easy to disassemble and assemble to improve the above problem. Utility Model Content

[0004] In view of the defects of the prior art, the technical problem to be solved by the utility model is to provide a grinding wheel installation structure that is easy to disassemble and assemble.

[0005] A grinding wheel installation structure that is easy to disassemble and assemble, comprises a rotating shaft and a grinding wheel body for connecting to an external grinding machine driving shaft, a limiting plate being fixedly connected to the upper portion of the rotating shaft, the grinding wheel body being sleeved on the rotating shaft and abutting against one side of the limiting plate, an external thread being arranged on the outer peripheral side of the rotating shaft, a positioning block being arranged on one side of the limiting plate, a limiting groove being concave on the inner peripheral side of the grinding wheel body and being engageable with the positioning block, a pressing buckle being rotatably arranged on the limiting plate within the inner ring range of the grinding wheel body, a pressing ring being threadedly arranged on the external thread, the diameter of the pressing ring being smaller than the inner ring diameter of the grinding wheel body, the pressing ring being able to move along the external thread and press against the pressing buckle, so that the pressing buckle is rotated and pressed onto the grinding wheel body.

[0006] In one embodiment, the positioning blocks correspond to the limiting grooves one by one and are evenly distributed along the circumference with the rotating shaft as the center.

[0007] In one embodiment, a plurality of the buckles are evenly distributed along the circumference with the rotating shaft as the center, and the plurality of buckles and the plurality of positioning blocks are arranged in a corresponding one-to-one staggered distribution.

[0008] In one embodiment, a torsion spring is abutted at the rotational connection between the buckle and the limiting plate, and the torsion spring is used to drive the buckle to maintain a connection state of swinging in the direction of the rotation axis.

[0009] In one embodiment, a limiting flange is provided on the rotating shaft along the outer circumference, and the limiting flange abuts against one side of the buckle; when the buckle is abutted against the limiting flange by the force of the torsion spring, the angle between the lengthwise extension line of the buckle and the center line of the rotating shaft is 10° to 45°.

[0010] In one embodiment, the lower side of the pressure ring that contacts the buckle is a guiding inclined surface.

[0011] In one embodiment, the contact surface of the upper portion of the buckle with the pressure ring is an arc surface.

[0012] In one embodiment, anti-slip grooves are provided on the outer circumference of the pressure ring.

[0013] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0014] The utility model realizes the single-side limit of the grinding wheel body by the limit plate on the rotating shaft, and the positioning block on the limit plate is embedded in the limit groove on the inner peripheral side of the grinding wheel body to realize the synchronous rotation of the rotating shaft and the grinding wheel body. At this time, the pressure ring is driven to press against the other side of the grinding wheel body to realize the clamping installation of the grinding wheel body.

[0015] When the grinding wheel body needs to be disassembled, the grinding wheel body can be disassembled by only screwing the pressure ring to separate the pressure ring from the pressure buckle, and there is no need to screw and remove the pressure ring along the external thread as a whole, which greatly increases the convenience of disassembling the grinding wheel body. The pressure ring cooperates with the pressure buckle to achieve indirect contact and clamping of the grinding wheel body by the pressure ring, effectively avoiding the problem of instability of the grinding wheel caused by easy wear of the direct contact surface between the pressure ring and the grinding wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the three-dimensional structural schematic diagrams of a grinding wheel installation structure that is easy to disassemble and assemble in one embodiment of the utility model;

[0017] Figure 2 In one embodiment of the utility model Figure 1 AA cross-sectional structural diagram;

[0018] Figure 3 This is a second three-dimensional structural schematic diagram of a grinding wheel installation structure that is easy to disassemble and assemble in one embodiment of the utility model;

[0019] Figure 4 In one embodiment of the utility model Figure 3 Schematic diagram of the BB cross-section structure. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods:

[0021] like Figures 1 to 4 The embodiment of the utility model shown preferably provides a grinding wheel installation structure that is easy to disassemble and assemble, including a rotating shaft 1 and a grinding wheel body 2 for connecting to an external grinder drive shaft, the upper fixed connection of the rotating shaft 1 is provided with a limiting plate 3, the grinding wheel body 2 is sleeved on the rotating shaft 1 and abuts against one side of the limiting plate 3, the outer peripheral side of the rotating shaft 1 is provided with an external thread, one side of the limiting plate 3 is provided with a positioning block 4, the inner peripheral side of the grinding wheel body 2 is concave with a limiting groove 5 that can be engaged with the positioning block 4, the limiting plate 3 is provided with a pressing buckle 6 that is rotatable within the inner ring range of the grinding wheel body 2, the external thread is provided with a pressing ring 7 that is threadedly matched, the diameter of the pressing ring 7 is smaller than the inner ring diameter of the grinding wheel body 2, the pressing ring 7 can move along the external thread and press against the pressing buckle 6, so that the pressing buckle 6 rotates and is pressed onto the grinding wheel body 2.

[0022] Specifically, the unilateral position limitation of the grinding wheel body is realized by the limit plate on the rotating shaft, and the positioning block on the limit plate is embedded in the limit groove on the inner circumference of the grinding wheel body to realize the synchronous rotation of the rotating shaft and the grinding wheel body. At this time, the pressure ring is driven to press against the other side of the grinding wheel body to realize the clamping installation of the grinding wheel body.

[0023] When the grinding wheel body needs to be disassembled, it is only necessary to screw the pressure ring to separate the pressure ring from the pressure buckle to achieve the disassembly of the grinding wheel body. Since the inner hole diameter of the grinding wheel body is larger than the outer diameter of the pressure ring, there is no need to screw the pressure ring along the external thread to remove it as a whole, which greatly increases the convenience of disassembly of the grinding wheel body. The pressure ring and the pressure buckle cooperate to achieve indirect contact clamping of the grinding wheel body by the pressure ring, which effectively avoids the problem of instability of the grinding wheel caused by wear of the direct contact surface between the pressure ring and the grinding wheel.

[0024] Furthermore, the positioning blocks 4 and the limiting grooves 5 are evenly distributed along the circumference with the rotating shaft 1 as the center in a one-to-one correspondence. Specifically, the stability of the structure when the rotating shaft and the grinding wheel body rotate synchronously is improved by cooperating with the positioning blocks and the limiting grooves.

[0025] Further, the buckles 6 are evenly distributed along the circumference with the rotating shaft 1 as the center, and the buckles 6 are staggered and arranged correspondingly with the positioning blocks 4. Specifically, the buckles are pressed against the grinding wheel body by the buckle pressure rings to enhance the stability of the grinding wheel body clamping.

[0026] Furthermore, a torsion spring is abutted at the rotation connection between the buckle 6 and the limit plate 3, and the torsion spring is used to drive the buckle 6 to maintain a connection state of swinging in the direction of the rotating shaft 1. Then, when the pressure ring moves away from the buckle along the external thread, the buckle can automatically detach from the grinding wheel body through the elastic force of the torsion spring, thereby effectively enhancing the convenience of installing and disassembling the grinding wheel body.

[0027] Furthermore, the rotating shaft 1 has a limiting flange 8 protruding outwardly along the circumference, and the limiting flange 8 abuts against one side of the buckle 6; when the buckle 6 abuts against the limiting flange 8 under the force of the torsion spring, the angle between the extended line of the length direction of the buckle 6 and the center line of the rotating shaft 1 is 10° to 45°. Furthermore, the length direction of the buckle is set at an inclined angle with the center line of the rotating shaft, so that when the pressing ring moves along the external thread to abut against the buckle direction and presses together, it can directly guide and drive the buckle to rotate toward the grinding wheel body.

[0028] Furthermore, the lower side of the pressing ring 7 is provided with a contact surface with the pressing buckle 6 as a guiding inclined surface. Specifically, the guiding inclined surface is used to guide and press the pressing buckle to drive the pressing buckle to rotate.

[0029] Furthermore, the upper portion of the buckle 6 that contacts the pressing ring 7 is an arc surface.

[0030] Furthermore, the outer circumference of the pressing ring 7 is provided with anti-slip grooves, so that the user can drive the pressing ring to rotate by twisting.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A grinding wheel installation structure that is easy to disassemble and assemble, comprising a rotating shaft (1) connected to an external grinding machine drive shaft and a grinding wheel body (2), the upper portion of the rotating shaft (1) being fixedly connected to a limit plate (3), the grinding wheel body (2) being sleeved on the rotating shaft (1) and abutting against one side of the limit plate (3), the outer peripheral side of the rotating shaft (1) being provided with an external thread, characterized in that: A positioning block (4) is arranged on one side of the limiting plate (3); a limiting groove (5) which can be engaged with the positioning block (4) is concavely arranged on the inner circumference of the grinding wheel body (2); a pressing buckle (6) is rotatably arranged on the limiting plate (3) within the inner ring range of the grinding wheel body (2); a pressing ring (7) is threadedly arranged on the external thread; the diameter of the pressing ring (7) is smaller than the inner ring diameter of the grinding wheel body (2); the pressing ring (7) can move along the external thread and press against the pressing buckle (6), so that the pressing buckle (6) rotates and is pressed against the grinding wheel body (2).

2. The grinding wheel installation structure that is easy to disassemble and assemble according to claim 1 is characterized in that: The positioning blocks (4) correspond to the limiting grooves (5) in a one-to-one manner and are evenly distributed along the circumference with the rotating shaft (1) as the center.

3. The grinding wheel installation structure that is easy to disassemble and assemble according to claim 2 is characterized in that: The pressing buckles (6) are evenly distributed along the circumference with the rotating shaft (1) as the center, and the pressing buckles (6) and the positioning blocks (4) are arranged in a corresponding one-to-one staggered distribution.

4. The grinding wheel installation structure that is easy to assemble and disassemble according to claim 1 is characterized in that: A torsion spring is abutted at the rotational connection between the pressing buckle (6) and the limiting plate (3), and the torsion spring is used to drive the pressing buckle (6) to maintain a connection state of swinging in the direction of the rotating shaft (1).

5. The grinding wheel installation structure that is easy to disassemble and assemble according to claim 4 is characterized in that: The rotating shaft (1) is provided with a limiting flange (8) protruding outwardly along the circumference, and the limiting flange (8) abuts against one side of the buckle (6); when the buckle (6) is abutted against the limiting flange (8) by the force of the torsion spring, the angle between the extended line of the length direction of the buckle (6) and the center line of the rotating shaft (1) is 10° to 45°.

6. The grinding wheel installation structure that is easy to assemble and disassemble according to claim 1 is characterized in that: The lower side of the pressing ring (7) that contacts the pressing buckle (6) is a guiding inclined surface.

7. The grinding wheel installation structure that is easy to assemble and disassemble according to claim 1 is characterized in that: The upper part of the pressing buckle (6) and the contact surface with the pressing ring (7) are arc surfaces.

8. The grinding wheel installation structure that is easy to assemble and disassemble according to claim 1 is characterized in that: The outer peripheral side of the pressure ring (7) is provided with anti-slip grooves.

Images