A grinding wheel dynamic balancing device

Abstract

The present invention relates to the technical field of dynamic balancing of grinding wheels, and specifically to a dynamic balancing device for a grinding wheel, comprising: a support frame, an internal cavity of an organic body is provided inside the support frame, a rotating shaft is movably connected to the interior of the internal cavity of the organic body via a bearing, a linkage gear ring is fixedly welded to the surface of the rotating shaft, a first motor is fixedly mounted on the inner wall of the internal cavity of the organic body, an output end of the first motor is fixedly connected to a driving gear, a grinding wheel body is sleeved on the right end of the surface of the rotating shaft, a flange is provided on the surface of the grinding wheel body, an annular groove is provided on the surface of the flange, and a fixed block is threadedly connected to the right end of the rotating shaft. The dynamic balancing device of the present invention can continuously adjust the angle of the counterweight relative to the grinding wheel body when the grinding wheel body rotates, thereby realizing convenient adjustment of the angle of the counterweight, and thereby inferring the installation position of the balance block, thereby improving detection efficiency, and at the same time, having low processing requirements for the flange, and facilitating production.

Description

Technical Field

[0001] The invention relates to the technical field of grinding wheel dynamic balancing, in particular to a grinding wheel dynamic balancing device. Background Art

[0002] Dynamic balancing refers to the operation of determining the position and size of the imbalance generated when the rotor rotates and eliminating it. When the grinding wheel is connected to the spindle, it is necessary to adjust the dynamic balance of the grinding wheel due to the irregular shape and uneven quality of the grinding wheel.

[0003] In this regard, China's patent application number: CN202111663117.4 discloses a grinding wheel dynamic balancing adjustment device, which includes a base, a mounting tube and a limit ring. The mounting tube is arranged on the end face of the base, and the limit ring is arranged at the end of the mounting tube away from the base. The mounting tube is sequentially sleeved with a first transmission ring, a second transmission ring, and a third transmission ring in the axial direction. The first transmission ring, the second transmission ring, and the third transmission ring are capable of relative rotation. A drive assembly is provided on the base, and a clamping mechanism is provided on the side walls of the first transmission ring, the second transmission ring, and the third transmission ring. This application has the effect of facilitating the automatic adjustment of the dynamic balancing block and improving the adjustment efficiency of the dynamic balancing block.

[0004] The adjustment device drives the balancing block to move in the slide groove through the clamping mechanism. However, when the balancing block is installed and adjusted, the bolts need to be constantly loosened and tightened, which is inefficient. In addition, the balancing block needs to be fixed in the slide groove multiple times, so multiple threaded grooves need to be opened in the slide groove, which requires multiple machining during the production and processing of the flange, which is inconvenient to manufacture.

[0005] Therefore, in order to solve the above problems, a grinding wheel dynamic balancing device is proposed. Summary of the Invention

[0006] The object of the present invention is to provide a dynamic balancing device for a grinding wheel to solve the problem that the adjustment device proposed in the above background technology drives the balancing block to move in the slide groove through a clamping mechanism, but when the balancing block is installed and adjusted, the bolts need to be continuously loosened and tightened, which is inefficient, and the balancing block needs to be fixed in the slide groove multiple times, so multiple threaded grooves need to be opened in the slide groove, which requires multiple machining of the flange during production and processing, making it inconvenient to manufacture.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a grinding wheel dynamic balancing device, comprising: a support frame, an internal cavity of an organism is defined in the interior of the support frame, a rotating shaft is movably connected to the interior of the internal cavity of the organism via a bearing, a linkage gear ring is fixedly welded to the surface of the rotating shaft, a first motor is fixedly mounted on the inner wall of the internal cavity of the organism, an output end of the first motor is fixedly connected to a driving gear, a grinding wheel body is sleeved on the right end of the surface of the rotating shaft, a flange is provided on the surface of the grinding wheel body, an annular groove is defined on the surface of the flange, a fixed block is threadedly connected to the right end of the rotating shaft, and a movable groove is defined in the interior of the rotating shaft;

[0008] An adjustment structure is installed on the surface of the rotating shaft, and the adjustment structure includes a limit plate, which is fixedly welded to the surface of the rotating shaft, and a limit column is welded on the right side wall of the limit plate. A movable cavity is opened inside the limit plate, and the inner side of the movable cavity is movably connected with the rotating plate through a bearing, and a first bevel gear is welded on the surface of the rotating plate, and a limit ring is welded on the outer wall of the rotating plate, and a connecting rod is welded on the surface of the limit ring. The lower end of the connecting rod is fixedly installed with a counterweight by a bolt, and the upper end of the connecting rod is fixedly installed with an electric telescopic rod, and a marker pen is fixedly installed on the ejection end of the electric telescopic rod. A second motor is fixedly installed on the left side wall of the rotating shaft, and the output end of the second motor is fixedly connected to the second bevel gear.

[0009] Preferably, the right end of the rotating shaft passes through the right side wall of the supporting frame, the first motor is installed on the lower side of the rotating shaft, and the driving gear is engaged with the linkage gear ring.

[0010] Preferably, the limiting column passes through the grinding wheel body, the left side wall of the flange is fitted with the right side wall of the limiting plate, and the left side wall of the fixing block is tightly fitted with the right side wall of the flange.

[0011] Preferably, the limiting plate is installed on the right side of the supporting frame, the movable cavity is communicated with the interior of the movable groove, and the rotating plate is arranged perpendicular to the rotating axis.

[0012] Preferably, the first bevel gear is installed in the middle position of the left side wall of the rotating disk, the first bevel gear is meshed with the second bevel gear, and the surface of the limiting ring is provided with an anti-slip pad, and the anti-slip pad is tightly fitted with the inner wall of the movable cavity.

[0013] Preferably, both upper and lower ends of the connecting rod are exposed from the surface of the limiting plate, and the exposed lengths are equal.

[0014] Preferably, the weight of the counterweight block is equal to the total weight of the electric telescopic rod, the marker pen and the heavy end of the grinding wheel body.

[0015] Preferably, the electric telescopic rod is installed on the left side of the annular chute, the electric telescopic rod is installed horizontally, and the right end of the marker pen is located inside the annular chute.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the dynamic balancing device of the present invention can continuously adjust the angle of the counterweight block relative to the grinding wheel body when the grinding wheel body rotates, thereby realizing convenient adjustment of the angle of the counterweight block, and thereby inferring the installation position of the balance block, thereby improving detection efficiency and achieving better use effect. At the same time, the processing requirements for the flange are low, and production is facilitated.

[0017] The first motor is turned off, and the second motor drives the second bevel gear to rotate, and the second bevel gear is meshed with the first bevel gear. When the second bevel gear rotates, the rotating disk is driven to rotate inside the movable cavity through the first bevel gear. When the rotating disk rotates, the connecting rod is driven to rotate relative to the grinding wheel body through the limiting ring, so as to conveniently adjust the angle of the counterweight relative to the grinding wheel body. When the grinding wheel body rotates stably and balanced, the second motor is turned off, and the electric telescopic rod is started. The electric telescopic rod drives the marker pen to extend, and the end of the marker pen contacts the inner wall of the annular slide groove, which can leave a mark on the inner wall of the annular slide groove. When the first motor is turned off, the rotating shaft and the grinding wheel body will gradually stop rotating. After the grinding wheel body is removed, the installation position of the balancing block can be determined by measuring the position farthest from the mark in the annular slide groove. The operation is simple and the efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic right side view of the structure of the grinding wheel body of the present invention;

[0019] Figure 2 This is a schematic diagram of the structural separation state of the grinding wheel body of the present invention;

[0020] Figure 3 It is a schematic front cross-sectional view of the structure of the inner cavity of the machine body of the present invention;

[0021] Figure 4 It is a schematic front cross-sectional view of the structure of the movable groove of the present invention;

[0022] Figure 5 It is a schematic diagram of the right side structure of the limiting plate of the present invention;

[0023] Figure 6 It is a schematic left side view of the structure of the first bevel gear of the present invention;

[0024] Figure 7 This is a schematic structural diagram of the marker pen of the present invention in use.

[0025] In the figure: 1. Support frame; 11. Inner cavity of the machine body; 12. Rotating shaft; 13. Linking gear ring; 14. First motor; 15. Driving gear; 16. Flange; 17. Annular slide; 18. Fixed block; 19. Grinding wheel body; 110. Movable groove; 2. Adjustment structure; 21. Limiting plate; 22. Limiting column; 23. Movable cavity; 24. Rotating plate; 25. First bevel gear; 26. Limiting ring; 27. Connecting rod; 28. Counterweight; 29. Electric telescopic rod; 210. Marking pen; 211. Second motor; 212. Second bevel gear. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-7 , an embodiment provided by the present invention:

[0028] The first motor 14, the grinding wheel body 19 and the second motor 211 used in this application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described here in detail.

[0029] A grinding wheel dynamic balancing device includes: a support frame 1, an internal cavity 11 is defined within the support frame 1, a rotating shaft 12 is movably connected to the internal cavity 11 via a bearing, a linkage gear ring 13 is fixedly welded to the surface of the rotating shaft 12, a first motor 14 is fixedly mounted on the inner wall of the internal cavity 11, an output end of the first motor 14 is fixedly connected to a driving gear 15, a grinding wheel body 19 is sleeved on the right end of the surface of the rotating shaft 12, a flange 16 is provided on the surface of the grinding wheel body 19, an annular groove 17 is defined on the surface of the flange 16, a fixed block 18 is threadedly connected to the right end of the rotating shaft 12, and a movable groove 110 is defined within the internal cavity 11.

[0030] The surface of the rotating shaft 12 is installed with an adjustment structure 2, which includes a limit plate 21, the limit plate 21 is fixedly welded to the surface of the rotating shaft 12, a limit column 22 is welded on the right side wall of the limit plate 21, a movable cavity 23 is opened inside the limit plate 21, and a rotating disk 24 is movably connected to the inner side of the movable cavity 23 through a bearing. A first bevel gear 25 is welded on the surface of the rotating disk 24, a limit ring 26 is welded on the outer wall of the rotating disk 24, and a connecting rod 27 is welded on the surface of the limit ring 26. The lower end of the connecting rod 27 is fixedly installed with a counterweight block 28 by bolts, and the upper end of the connecting rod 27 is fixedly installed with an electric telescopic rod 29. The electric telescopic rod 2 9 is fixedly mounted with a marking pen 210 on the ejection end, and a second motor 211 is fixedly mounted on the left side wall of the rotating shaft 12. The output end of the second motor 211 is fixedly connected to a second bevel gear 212. The second motor 211 can drive the counterweight 28 to rotate relative to the electric telescopic rod 29 when the grinding wheel body 19 rotates, so as to continuously adjust the angle of the counterweight 28 relative to the grinding wheel body 19, thereby realizing convenient adjustment of the angle of the counterweight 28, and thereby inferring the installation position of the balance block. At the same time, the processing requirements for the flange 16 are low, and production is convenient. The angle of the counterweight 28 is conveniently adjusted, thereby improving detection efficiency and achieving better use effect.

[0031] Furthermore, the right end of the rotating shaft 12 passes through the right side wall of the supporting frame 1, the first motor 14 is installed on the lower side of the rotating shaft 12, the driving gear 15 is engaged with the linkage gear ring 13, and the grinding wheel body 19 can be installed on the part of the rotating shaft 12 exposed to the right side wall of the supporting frame 1. The rotation of the driving gear 15 can drive the linkage gear ring 13 to rotate, and the first motor 14 provides power for the rotation of the rotating shaft 12.

[0032] Furthermore, the limiting column 22 passes through the grinding wheel body 19, the left side wall of the flange 16 fits with the right side wall of the limiting plate 21, and the left side wall of the fixing block 18 fits tightly with the right side wall of the flange 16. The limiting column 22 can fix the grinding wheel body 19 on the limiting plate 21, so that the installation of the grinding wheel body 19 on the rotating shaft 12 is more secure, and the grinding wheel body 19 is prevented from loosening, so that when the rotating shaft 12 rotates, the grinding wheel body 19 idles, and the setting of the fixing block 18 provides further limitation for the installation of the grinding wheel body 19.

[0033] Furthermore, the limit plate 21 is installed on the right side of the supporting frame 1, the movable cavity 23 is communicated with the interior of the movable groove 110, and the rotating plate 24 is arranged perpendicular to the rotating shaft 12. The rotating plate 24 can drive the connecting rod 27 to rotate on the outside of the rotating shaft 12 to achieve the adjustment of the angle of the counterweight block 28 relative to the grinding wheel body 19.

[0034] Furthermore, the first bevel gear 25 is installed in the middle position of the left side wall of the rotating disk 24, the first bevel gear 25 is meshed with the second bevel gear 212, the surface of the limiting ring 26 is provided with an anti-slip pad, and the anti-slip pad is tightly fitted with the inner wall of the movable cavity 23, and the rotation of the second bevel gear 212 can drive the first bevel gear 25 to rotate. The setting of the anti-slip pad enables the rotating shaft 12 to drive the movable cavity 23 and the adjustment structure 2 inside the movable groove 110 to rotate together when the rotating shaft 12 rotates, thereby preventing the connecting rod 27 from being unable to maintain the same angle of rotation when the rotating shaft 12 rotates.

[0035] Furthermore, the upper and lower ends of the connecting rod 27 are exposed from the surface of the limit plate 21, and the exposed lengths are equal. The connecting rod 27 provides support and fixation for the installation of the counterweight block 28 and the electric telescopic rod 29, reducing the impact of the different weights at both ends of the connecting rod 27 on the dynamic balance detection of the grinding wheel body 19.

[0036] Furthermore, the weight of the counterweight 28 is equal to the total weight of the electric telescopic rod 29, the marker 210 and the weighted end of the grinding wheel body 19. The setting of the counterweight 28 can offset the influence of the installation of the electric telescopic rod 29 and the marker 210 at both ends of the connecting rod 27 on the dynamic balance detection of the grinding wheel body 19, and can offset the centrifugal force exerted on the weighted end when the grinding wheel body 19 rotates, so as to ensure that when the counterweight 28 is located at a position symmetrical to the axis of the weighted end on the grinding wheel body 19, the rotation balance of the grinding wheel body 19 is stable.

[0037] Furthermore, the electric telescopic rod 29 is installed on the left side of the annular groove 17, and the electric telescopic rod 29 is installed horizontally. The right end of the marker pen 210 is located inside the annular groove 17. The operation of the electric telescopic rod 29 can drive the movement of the marker pen 210 so that the right end of the marker pen 210 can contact the inner wall of the annular groove 17, so as to leave a mark on the inner wall of the annular groove 17, and by measuring the position farthest from the mark inside the annular groove 17, the installation position of the balance block can be determined. The operation is convenient, the detection efficiency is improved, and there is no need to repeatedly disassemble and assemble the balance block, which is safer and more efficient.

[0038] Working principle: Place the grinding wheel body 19 on the rotating shaft 12, the limiting column 22 passes through the grinding wheel body 19, and tighten the fixing block 18 to fix the grinding wheel body 19 on the rotating shaft 12, start the first motor 14, the first motor 14 drives the driving gear 15 to rotate, the driving gear 15 engages with the linkage gear ring 13, that is, the rotating shaft 12 is driven to rotate through the linkage gear ring 13, when the rotating shaft 12 rotates, the grinding wheel body 19 is driven to rotate through the limiting column 22, and the vibration state of the flange 16 is detected by the detection instrument.

[0039] The adjustment structure 2 is installed on the rotating shaft 12. The rotation of the rotating shaft 12 drives the adjustment structure 2 to rotate. The counterweight 28 rotates together with the grinding wheel body 19 at the same angular velocity. The second motor 211 is started, and the second motor 211 drives the second bevel gear 212 to rotate. The second bevel gear 212 is engaged with the first bevel gear 25. When the second bevel gear 212 rotates, it drives the rotating disk 24 to rotate inside the active cavity 23 through the first bevel gear 25. When the rotating disk 24 rotates, it drives the connecting rod 27 to rotate relative to the grinding wheel body 19 through the limiting ring 26. The angle of the counterweight 28 relative to the grinding wheel body 19 can be conveniently adjusted.

[0040] By referring to the values on the detection instrument, when the counterweight block 28 is located at a position symmetrical to the axis of the grinding wheel body 19, the centrifugal force exerted on the weighted end during the rotation of the grinding wheel body 19 can be offset, making the rotation balance of the grinding wheel body 19 stable.

[0041] At this time, the second motor 211 is turned off, and the electric telescopic rod 29 is started. The electric telescopic rod 29 drives the marker pen 210 to extend, and the end of the marker pen 210 contacts the inner wall of the annular groove 17, leaving a mark on the inner wall of the annular groove 17. The first motor 14 is turned off, and the rotating shaft 12 and the grinding wheel body 19 will gradually stop rotating. After the grinding wheel body 19 is removed, the installation position of the balancing block can be determined by measuring the position farthest from the mark inside the annular groove 17. The processing requirements for the flange 16 are low, and production is convenient.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A grinding wheel dynamic balancing device comprising: A support frame (1) is provided with an internal cavity (11) inside the support frame (1), a rotating shaft (12) is movably connected to the internal cavity (11) of the rotating shaft (12) through a bearing, a linkage gear ring (13) is fixedly welded on the surface of the rotating shaft (12), a first motor (14) is fixedly installed on the inner wall of the internal cavity (11), an output end of the first motor (14) is fixedly connected to a driving gear (15), a grinding wheel body (19) is sleeved on the right end of the surface of the rotating shaft (12), a flange (16) is provided on the surface of the grinding wheel body (19), an annular sliding groove (17) is provided on the surface of the flange (16), a fixed block (18) is threadedly connected to the right end of the rotating shaft (12), and a movable groove (110) is provided inside the rotating shaft (12); Its characteristics are: The surface of the rotating shaft (12) is provided with an adjustment structure (2), the adjustment structure (2) comprising a limit plate (21), the limit plate (21) being fixedly welded to the surface of the rotating shaft (12), a limit column (22) being welded on the right side wall of the limit plate (21), a movable cavity (23) being provided inside the limit plate (21), a rotating disk (24) being movably connected to the inner side of the movable cavity (23) via a bearing, a first bevel gear (25) being welded on the surface of the rotating disk (24), and an outer wall of the rotating disk (24) A limit ring (26) is welded on the upper portion, a connecting rod (27) is welded on the surface of the limit ring (26), a counterweight (28) is fixedly installed on the lower end of the connecting rod (27) by means of bolts, an electric telescopic rod (29) is fixedly installed on the upper end of the connecting rod (27), a marking pen (210) is fixedly installed on the ejection end of the electric telescopic rod (29), a second motor (211) is fixedly installed on the left side wall of the rotating shaft (12), and an output end of the second motor (211) is fixedly connected to a second bevel gear (212).

2. A grinding wheel dynamic balancing device according to claim 1, characterized in that: The right end of the rotating shaft (12) passes through the right side wall of the supporting frame (1), the first motor (14) is installed on the lower side of the rotating shaft (12), and the driving gear (15) is engaged with the linkage gear ring (13).

3. A grinding wheel dynamic balancing device according to claim 1, characterized in that: The limiting column (22) passes through the grinding wheel body (19), the left side wall of the flange (16) fits with the right side wall of the limiting plate (21), and the left side wall of the fixing block (18) fits tightly with the right side wall of the flange (16).

4. A grinding wheel dynamic balancing device according to claim 1, characterized in that: The limiting plate (21) is installed on the right side of the supporting frame (1), the movable cavity (23) is communicated with the interior of the movable groove (110), and the rotating plate (24) is arranged perpendicular to the rotating shaft (12).

5. A grinding wheel dynamic balancing device according to claim 1, characterized in that: The first bevel gear (25) is installed at the middle position of the left side wall of the rotating disk (24), and the first bevel gear (25) is meshed with the second bevel gear (212). The surface of the limiting ring (26) is provided with an anti-slip pad, and the anti-slip pad is tightly fitted with the inner wall of the movable cavity (23).

6. A grinding wheel dynamic balancing device according to claim 1, characterized in that: The upper and lower ends of the connecting rod (27) are both exposed from the surface of the limiting plate (21), and the exposed lengths are equal.

7. A grinding wheel dynamic balancing device according to claim 1, characterized in that: The weight of the counterweight (28) is equal to the total weight of the electric telescopic rod (29), the marking pen (210) and the heavy end of the grinding wheel body (19).

8. The dynamic balancing device for a grinding wheel according to claim 1, characterized in that: The electric telescopic rod (29) is installed on the left side of the annular chute (17), and the electric telescopic rod (29) is installed horizontally. The right end of the marking pen (210) is located inside the annular chute (17).

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