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CN-224214587-U - Polisher bearing structure

CN224214587UCN 224214587 UCN224214587 UCN 224214587UCN-224214587-U

Abstract

The utility model provides a grinding machine bearing structure which comprises an outer cylinder body arranged in a nail polish pen, wherein a central shaft is coaxially arranged in the outer cylinder body, a step is arranged on the outer side of the central shaft, a large bearing and a small bearing are sleeved at the upper end and the lower end close to the step respectively, the outer walls of the large bearing and the small bearing are connected with the inner wall of the outer cylinder body, the top end of the outer cylinder body is connected with a locking cover, one end of the locking cover is propped against the outer ring of the large bearing, and an O-shaped ring I and an O-shaped ring II are respectively arranged on the outer side of the locking cover and the outer side of the bottom end of the outer cylinder body. According to the utility model, the central shaft with the step is coaxially arranged in the outer cylinder, the large bearing and the small bearing are directly sleeved at the upper end and the lower end of the step, the locking cover is matched, and the inner supporting cylinder body and the clamping ring are arranged, so that the bearing supporting and fixing modes are remarkably simplified, the working noise generated by complex structure, friction and vibration during high-speed rotation is effectively reduced, the working environment of a soft-shelled turtle is improved, and the comfort level of customers is improved.

Inventors

  • WANG JINCAI

Assignees

  • 深圳市万川美业科技有限公司

Dates

Publication Date
20260508
Application Date
20250709

Claims (8)

  1. 1. A polishing machine bearing structure comprises an outer cylinder body (1) arranged in a nail polishing pen and is characterized in that a central shaft (2) is coaxially arranged in the outer cylinder body (1), a step is arranged on the outer side of the central shaft (2), a large bearing (6) and a small bearing (3) are sleeved at the upper end and the lower end close to the step respectively, the outer walls of the large bearing (6) and the small bearing (3) are connected with the inner wall of the outer cylinder body (1), the top end of the outer cylinder body (1) is connected with a locking cover (7), one end of the locking cover (7) is propped against the outer ring of the large bearing (6), and an O-shaped ring I (9) and an O-shaped ring II (10) are arranged on the outer side of the locking cover (7) and the outer side of the bottom end of the outer cylinder body (1) respectively.
  2. 2. The grinding machine bearing structure according to claim 1, wherein the bottom end of the outer cylinder body (1) is provided with a through hole for the bottom end of the central shaft (2) to pass through, and the small bearing (3) is arranged on the top side of the through hole.
  3. 3. The grinding machine bearing structure according to claim 1, wherein an inner supporting cylinder body (4) is arranged between the large bearing (6) and the small bearing (3), and the upper end and the lower end of the inner supporting cylinder body (4) are respectively propped against the outer rings of the large bearing (6) and the small bearing (3).
  4. 4. The grinding machine bearing structure according to claim 1, wherein the top end of the outer cylinder body (1) is provided with a threaded opening, and the outer side of the bottom end of the locking cover (7) is provided with external threads connected with the threaded opening.
  5. 5. The grinding machine bearing structure according to claim 1, wherein annular grooves are formed in the outer side of the locking cover (7) and the outer side of the bottom end of the outer cylinder body (1) and are used for clamping the first O-shaped ring (9) and the second O-shaped ring (10) respectively.
  6. 6. The grinding machine bearing arrangement according to claim 1, characterized in that the top end of the central shaft (2) is connected with a connecting shaft (8) by means of threads.
  7. 7. The grinding machine bearing structure according to claim 1, wherein the central shaft (2) is a hollow shaft for mounting a silicone tube, and a reduction is provided at the bottom end of the hollow shaft for restricting the silicone tube and a connecting rod for connecting the grinding head.
  8. 8. The grinding machine bearing structure according to claim 1, characterized in that the central shaft (2) is sleeved with a clamping ring (5) between the bottom side close to the big bearing (6) and the step, and the top side of the clamping ring (5) is propped against the inner ring of the big bearing (6).

Description

Polisher bearing structure Technical Field The utility model belongs to the technical field of nail grinding machines, and particularly relates to a grinding machine bearing structure. Background The nail polish pen is a professional hand-held electric tool and is focused on the fine treatment in the nail polish service. The nail polish can be widely applied to fine polishing, shaping and polishing of natural nails and various artificial nails (including phototherapy nails, crystal nails, nail plates and the like), and simultaneously can also be used for finishing skin tissues around nails, removing artificial nails and the like. The core power is derived from a built-in miniature high-rotation-speed motor, and can generate strong rotation power. The power is efficiently transmitted to the polishing head interface through a precise transmission shaft, and the polishing head is driven to execute various tasks. To support this high-speed rotating drive shaft and ensure its operational stability and concentricity, the inside of the nail polish pen is typically designed with two sets of precision bearings. The core function of these bearings is to significantly reduce friction losses, which is a critical component for smooth, efficient operation. However, the bearing structure inside existing nail polish pens tends to be relatively complex in design. A significant disadvantage of this complexity is that it produces a relatively loud noise when the device is in operation. The continuous noise may not only interfere with the working environment of the nail operator, but also affect the comfort experience of the customer, which has a negative impact on overall user satisfaction. Accordingly, in view of the above, research and improvement have been made to solve the conventional structure and the conventional drawbacks, and a bearing structure for a grinding machine is provided to achieve the purpose of having more practical value. Disclosure of utility model In order to solve the technical problems, the utility model provides a bearing structure of a grinding machine, which is achieved by the following specific technical means: A grinding machine bearing structure comprises an outer cylinder body arranged in a nail-beautifying grinding pen, a central shaft is coaxially arranged in the outer cylinder body, a step is arranged on the outer side of the central shaft, a large bearing and a small bearing are sleeved at the upper end and the lower end close to the step respectively, the outer walls of the large bearing and the small bearing are connected with the inner wall of the outer cylinder body, the top end of the outer cylinder body is connected with a locking cover, one end of the locking cover is propped against the outer ring of the large bearing, and an O-shaped ring I and an O-shaped ring II are respectively arranged on the outer side of the locking cover and the outer side of the bottom end of the outer cylinder body. Further, the bottom of the outer cylinder body is provided with a through hole for the bottom end of the central shaft to penetrate out, and the small bearing is arranged on the top side of the through hole. Further, an inner supporting cylinder body is connected between the large bearing and the small bearing, and the upper end and the lower end of the inner supporting cylinder body are respectively propped against the outer rings of the large bearing and the small bearing. Further, the top of outer barrel is provided with the screw thread mouth, and the bottom outside of locking the lid is provided with the external screw thread that the screw thread mouth is connected. Further, annular grooves are formed in the outer side of the locking cover and the outer side of the bottom end of the outer cylinder body and are used for clamping the first O-shaped ring and the second O-shaped ring respectively. Further, the top end of the central shaft is connected with a connecting shaft through threads. Furthermore, the central shaft is a hollow shaft for installing the silicone tube, and the bottom end of the hollow shaft is provided with a necking for limiting the silicone tube and a connecting rod for connecting the grinding head. Furthermore, a clamping ring is sleeved between the bottom side, close to the large bearing, of the central shaft and the step, and the top side of the clamping ring abuts against the inner ring of the large bearing. Compared with the prior art, the utility model has the following beneficial effects: The utility model has the advantages that the large bearing, the small bearing, the locking cover, the inner supporting cylinder body and the clamping ring are arranged in the outer cylinder body in a coaxial manner, the large bearing and the small bearing are directly sleeved at the upper end and the lower end of the step, the locking cover is matched, the bearing supporting and fixing mode is remarkably simplified, the working noise generated by complex structure, friction and