Polishing machine switching mechanism and polishing machine

Abstract

The input end of the switching mechanism is connected with a handle of the polishing machine, the output end of the switching mechanism is connected with a polishing head, the switching mechanism comprises an adapter shell, a sun wheel shaft is arranged in the adapter shell, a sun wheel is arranged on the outer circumference of the sun wheel shaft, and the sun wheel is meshed with a planet wheel. The planet wheel is arranged on the planet carrier, and the planet carrier is connected with the clamping needle shaft core through the coupling; power is transmitted to the sun wheel shaft from the outside, the sun wheel shaft drives the sun wheel arranged on the sun wheel shaft to rotate, the power is transmitted to the coupling through the sun wheel, and finally the power is transmitted to the clamping needle shaft core through the coupling. According to the switching mechanism, coaxial transmission is achieved by arranging the coupling and the coupling guide sleeve, meanwhile, the handle can be matched with the brushless motor with the high rotating speed and the brushless motor with the low rotating speed for use, and the clamped polishing head can be rapidly and conveniently replaced through the clamping needle shaft core with the elastic clamping force.

Description

Technical Field

[0001] The utility model relates to the technical field of dental medical instruments, in particular to a polishing machine switching mechanism and a polishing machine. Background Art

[0002] A dental polisher is a tooth cleaning device that is mainly used for the prevention and treatment of teeth, as well as the cleaning and polishing of the tooth surface. The dental polisher includes a polishing cup and a handle. The driving member in the handle is connected to the polishing head of the polishing cup, thereby driving the polishing head to operate. When working, the polishing cup is close to the tooth surface, and a special polishing paste for prevention is applied to the polishing head for cleaning and polishing. At this time, the speed is generally 1500-4000r / min, or a special enamel sealing and anti-caries paste is applied to the polishing head to fill and repair the damaged enamel and avoid the accumulation of pigmentation. The speed is generally 500-1000r / min.

[0003] Currently available dental polisher adapters cannot be used to switch between multiple polishing heads, nor can they be easily switched between high speed and low speed. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a polishing machine switching mechanism and a polishing machine, which can achieve fast and convenient switching between different polishing heads and can also be adapted to high-speed or low-speed power equipment.

[0005] A polishing machine adapter mechanism, whose input end is connected to the polishing machine handle and the output end is connected to the polishing head. The adapter device includes an adapter shell, a sun gear shaft is provided in the adapter shell, a sun gear is provided on the outer circumference of the sun gear shaft, the sun gear is meshed with the planetary gear, the planetary gear is provided on the planetary carrier, and the planetary carrier is connected to the clamping needle shaft core through a coupling; power is transmitted to the sun gear shaft from the outside, the sun gear shaft drives the sun gear provided on the sun gear shaft to rotate, the power is transmitted to the coupling through the sun gear, and finally the power is transmitted to the clamping needle shaft core through the coupling.

[0006] A coupling gear is provided at the end of the sun gear shaft below the sun gear, and the sun gear shaft is connected to the polishing machine handle through the coupling gear.

[0007] The planet carrier is arranged at the end of the sun gear shaft above the sun gear, the planet gear is arranged below the planet carrier, and an inner gear ring is arranged outside the planet gear for surrounding the planet gear.

[0008] The coupling comprises a pair of first coupling and second coupling arranged oppositely; the lower end of the first coupling is connected to the planetary wheel frame, and the upper end of the second coupling is connected to the clamping needle shaft core; a coupling guide sleeve is arranged on the outer periphery of the coupling.

[0009] The clamping needle shaft core has an elastic clamping force. When the transmission shaft of the polishing head is inserted into the clamping needle shaft core, the transmission shaft is clamped in the clamping needle shaft core.

[0010] A bearing is arranged outside the upper end of the planet carrier, an inner gear ring tightening sleeve is arranged outside the bearing, a tightening washer is arranged at the bottom of the inner gear ring tightening sleeve, and the tightening washer is arranged above the inner gear ring.

[0011] The inner gear ring top tight sleeve is provided with a step, and an elastic pad is provided between the step and the inner wall of the adapter shell.

[0012] The top of the outer side of the adapter shell is also provided with two annular grooves, a first O-ring is arranged in each of the grooves, and a second O-ring is also arranged below the two annular grooves.

[0013] The surface of the adapter shell is also provided with a patterned portion.

[0014] A polishing machine comprises a handle, a polishing head, and the above-mentioned polishing machine switching mechanism, wherein the handle and the polishing head are connected via the polishing machine switching device.

[0015] The utility model provides a polishing machine adapter mechanism and a polishing machine. The adapter mechanism realizes coaxial transmission by arranging a coupling and a coupling guide sleeve, and can also enable the handle to be used in conjunction with a high-speed or low-speed brushless motor. The clamping needle shaft core with elastic clamping force can enable the clamped polishing head to be replaced quickly and conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a polishing machine transfer mechanism in the utility model embodiment;

[0017] Figure 2 for Figure 1 Sectional view along AA direction;

[0018] Figure 3 An exploded view of the polishing machine transfer mechanism in the embodiment of the utility model;

[0019] In the figure: 1, coupling gear 2, sun gear shaft 3, first bearing 4, planetary gear 5, sun gear 6, inner gear ring 7, tightening washer 8, second bearing 9, first coupling 10, second coupling 11, third bearing 12, clamp needle shaft core 13, adapter housing 14, fourth bearing 15, first O-ring 16, second O-ring 17, locking nut 18, coupling guide sleeve 19, elastic pad 20, inner gear ring tightening sleeve 21, planetary carrier 22, third O-ring 23, gear box housing 24, input connector 25, polishing head transmission shaft 26, polishing head 27, patterned part. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited thereto. Example

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a polishing machine adapter mechanism and a polishing machine including the adapter mechanism, wherein the input end of the adapter mechanism is connected to the handle of the polishing machine through an input connector 24, and the output end is connected to the polishing head 26, wherein:

[0022] like Figure 2 and Figure 3 As shown, the adapter mechanism includes an adapter housing 13, in which a sun gear shaft 2 is arranged, and a sun gear 5 is arranged on the outer circumference of the sun gear shaft 2, the sun gear 5 is meshed with the planetary gear 4, the planetary gear 4 is arranged on the planetary carrier 21, and the planetary carrier 21 is connected to the clamping needle shaft core 12 through a coupling; when in use, the external polishing machine handle is connected to the adapter housing 13 of the adapter mechanism through the input connector 24 to transmit power to the sun gear shaft 2, and a coupling gear 1 is arranged at the lower end of the sun gear shaft 2, and the power output shaft of the polishing machine handle transmits power to the sun gear shaft 2 through the coupling gear 1, and the sun gear shaft 2 drives the sun gear 5 arranged on the sun gear shaft 2 to rotate, because the sun gear 5 is meshed with the planetary gear 6, the power is transmitted to the coupling through the planetary gear 6 and the planetary carrier 21, and finally the power is transmitted to the clamping needle shaft core 13 through the coupling, when in use, after the transmission shaft 25 of the polishing head 26 is inserted into the clamping needle shaft core 13, the polishing head 26 can be driven to rotate.

[0023] The planet carrier 21 is arranged at the end of the sun gear shaft 2 above the sun gear 5 , the planet gear 4 is arranged below the planet carrier 21 , and an inner gear ring 6 for surrounding the planet gear 4 is arranged outside the planet gear 4 .

[0024] The coupling comprises a pair of first coupling 9 and second coupling 10 arranged opposite to each other; the lower end of the first coupling 9 is connected to the planetary carrier 21, and the upper end of the second coupling 10 is connected to the clamping needle shaft core 13; a coupling guide sleeve 18 is provided on the outer periphery of the coupling composed of the first coupling 9 and the second coupling 10.

[0025] The needle clamping shaft core 13 has an elastic clamping force. When the transmission shaft 25 of the polishing head 26 is inserted into the needle clamping shaft core, the transmission shaft 25 is clamped in the needle clamping shaft core 13. Two annular grooves are also provided at the top of the outer side of the adapter shell. A first O-ring 15 is arranged in the groove. A second O-ring is also arranged below the two annular grooves. When the polishing head 26 is inserted into the adapter mechanism, the outer shell of the polishing head 26 is elastically connected to the adapter shell 13, which can also play a certain buffering role to avoid strong collision between the polishing head 26 and the adapter shell 13 when the polishing head 26 is inserted. At the same time, it can also reduce vibration during the polishing process and increase the patient's experience.

[0026] A second bearing 8 is disposed outside the upper end of the planet carrier 21 , an inner gear ring tightening sleeve 20 is disposed outside the second bearing 8 , a tightening washer 7 is disposed at the bottom of the inner gear ring tightening sleeve 20 , and the tightening washer 7 is disposed above the inner gear ring 6 .

[0027] The inner gear ring tightening sleeve 20 is provided with a step, and an elastic pad 19 is provided between the step and the inner wall of the adapter housing 13 .

[0028] In this embodiment, two first bearings 3 are provided on the outer periphery of the middle and lower part of the sun gear shaft 2 , and a gearbox housing 23 is provided between the first bearings and the input connector 24 .

[0029] In this embodiment, a locking nut 17 is further provided on the periphery of the second coupling 10 to securely connect the second coupling 10 to the coupling guide sleeve 18 .

[0030] In this embodiment, a patterned portion is further provided on the surface of the adapter housing 13, which can play an anti-slip role and also improve the grip feel.

Claims

1. A polishing machine adapter mechanism, whose input end is connected to the polishing machine handle and whose output end is connected to the polishing head, characterized in that: The adapter mechanism includes an adapter housing, a sun gear shaft is arranged inside the adapter housing, a sun gear is arranged on the outer circumference of the sun gear shaft, the sun gear is meshed with the planetary gear, the planetary gear is arranged on the planetary carrier, and the planetary carrier is connected to the clamping needle shaft core through a coupling; power is transmitted to the sun gear shaft from the outside, the sun gear shaft drives the sun gear arranged on the sun gear shaft to rotate, the power is transmitted to the coupling through the sun gear, and finally the power is transmitted to the clamping needle shaft core through the coupling.

2. A polishing machine switching mechanism according to claim 1, characterized in that: A coupling gear is provided at the end of the sun gear shaft below the sun gear, and the sun gear shaft is connected to the polishing machine handle through the coupling gear.

3. A polishing machine switching mechanism according to claim 1, characterized in that: The planet carrier is arranged at the end of the sun gear shaft above the sun gear, the planet gear is arranged below the planet carrier, and an inner gear ring is arranged outside the planet gear for surrounding the planet gear.

4. A polishing machine switching mechanism according to claim 1, characterized in that: The coupling comprises a pair of first coupling and second coupling arranged oppositely; the lower end of the first coupling is connected to the planetary wheel frame, and the upper end of the second coupling is connected to the clamping needle shaft core; a coupling guide sleeve is arranged on the outer periphery of the coupling.

5. A polishing machine switching mechanism according to claim 1, characterized in that: The clamping needle shaft core has an elastic clamping force. When the transmission shaft of the polishing head is inserted into the clamping needle shaft core, the transmission shaft is clamped in the clamping needle shaft core.

6. A polishing machine switching mechanism according to claim 1, characterized in that: A bearing is arranged outside the upper end of the planet carrier, an inner gear ring tightening sleeve is arranged outside the bearing, a tightening washer is arranged at the bottom of the inner gear ring tightening sleeve, and the tightening washer is arranged above the inner gear ring.

7. A polishing machine switching mechanism according to claim 6, characterized in that: The inner gear ring top tight sleeve is provided with a step, and an elastic pad is provided between the step and the inner wall of the adapter shell.

8. A polishing machine switching mechanism according to claim 1, characterized in that: The top of the outer side of the adapter shell is also provided with two annular grooves, a first O-ring is arranged in each of the grooves, and a second O-ring is also arranged below the two annular grooves.

9. A polishing machine switching mechanism according to claim 1, characterized in that: The surface of the adapter shell is also provided with a patterned portion.

10. A polishing machine, characterized in that: It comprises a handle, a polishing head, and a polishing machine adapter mechanism as described in any one of claims 1 to 9, wherein the handle and the polishing head are connected via the polishing machine adapter device.

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