阅读说明：本技术 一种抗扰动精密离心机装置 (Anti-disturbance precision centrifugal machine device ) 是由 董雪明 刘北英 王敏林 杨文明 于 2020-12-15 设计创作，主要内容包括：本发明公开的一种抗扰动精密离心机装置,属于惯性技术离心机领域。本发明包括主轴旋转机构、支撑臂机构、精密端、抗扰动装置。主轴旋转机构与支撑臂机构刚性连接,支撑臂机构端部与精密端紧固连接,抗扰动装置通过支撑架固定在支撑臂机构上,支撑架内部安装轴承,轴承内壁与旋转轴紧固,旋转轴端部与旋转轴驱动机构相连。旋转轴端部与旋转轴驱动机构相连,驱动旋转轴绕自身轴心高速旋转。抗扰动装置包括旋转轴驱动机构、旋转轴、轴承、支撑架。轴承外壁与支撑架相连。根据陀螺原理,抗扰动装置的旋转轴高速旋转,能够减小周围气流以及旋转过程中主轴旋转机构的回转误差对离心机偏摆、俯仰的扰动影响,提高离心机的抗干扰性。(The invention discloses an anti-disturbance precision centrifugal machine device, and belongs to the field of inertial technology centrifugal machines. The invention comprises a main shaft rotating mechanism, a supporting arm mechanism, a precision end and an anti-disturbance device. The main shaft rotating mechanism is rigidly connected with the supporting arm mechanism, the end part of the supporting arm mechanism is fixedly connected with the precision end, the anti-disturbance device is fixed on the supporting arm mechanism through a supporting frame, a bearing is arranged in the supporting frame, the inner wall of the bearing is fastened with the rotating shaft, and the end part of the rotating shaft is connected with the rotating shaft driving mechanism. The end part of the rotating shaft is connected with a rotating shaft driving mechanism to drive the rotating shaft to rotate around the self axis at a high speed. The anti-disturbance device comprises a rotating shaft driving mechanism, a rotating shaft, a bearing and a supporting frame. The outer wall of the bearing is connected with the support frame. According to the gyro principle, the rotating shaft of the disturbance resisting device rotates at a high speed, so that the disturbance influence of peripheral airflow and the rotation error of the main shaft rotating mechanism on the deflection and pitching of the centrifuge in the rotating process can be reduced, and the disturbance resisting performance of the centrifuge is improved.)

1. An anti-disturbance precision centrifuge device, characterized in that: comprises a main shaft rotating mechanism (1), a supporting arm mechanism (2), a precision end (3) and an anti-disturbance device (4);

the support arm mechanism (2) is installed and fixed on the main shaft rotating mechanism (1), the end part of the support arm mechanism (2) is fixedly connected with the precise end (3), the disturbance resisting device (4) is fixedly connected with the support arm mechanism (2) through the support frame (8), the centrifugal machine rotates by driving the support arm mechanism (2) to rotate through the main shaft rotating mechanism (1), and the support frame (8) fixedly connected with the support arm mechanism (2) drives the disturbance resisting device (4) to integrally rotate around the main shaft along with the main shaft rotating mechanism (1).

2. A disturbance rejection precision centrifuge apparatus as defined in claim 1, wherein: the anti-disturbance device (4) comprises a rotating shaft driving mechanism (5), a rotating shaft (6), a bearing (7) and a supporting frame (8); the end part of the rotating shaft (6) is connected with a rotating shaft driving mechanism (5) to drive the rotating shaft (6) to rotate around the self axis at a high speed; the rotating shaft (6) is connected with the inner wall of the bearing (7); the outer wall of the bearing (7) is connected with a support frame (8); the disturbance resisting device (4) arranged in the support frame (8) integrally rotates around the main shaft along with the main shaft rotating mechanism (1).

3. A disturbance rejection precision centrifuge apparatus as defined in claim 2, wherein: when the support arm mechanism (2) is subjected to peripheral air flow and main shaft rotation errors in the main shaft rotation process around the main shaft rotating mechanism (1) to enable the centrifugal machine to generate deflection and pitching, the rotating shaft (6) also rotates around the self axis at a high speed, and according to the gyro principle, the deflection and pitching generated by the centrifugal machine are resisted by the fact that the rotating shaft (7) rotates around the self axis at a high speed.

4. A disturbance rejection precision centrifuge apparatus as claimed in claim 1, 2 or 3, wherein: the rotating shaft (6) is provided with a key rotating shaft or an air floatation rotating shaft.

5. A disturbance rejection precision centrifuge apparatus as claimed in claim 1, 2 or 3, wherein: the bearing (7) is a hydraulic bearing or a rolling bearing or a sliding bearing or an air bearing or a combined bearing or a seated bearing or a flange bearing or a ball bushing.

6. A disturbance rejection precision centrifuge apparatus as claimed in claim 1, 2 or 3, wherein: the supporting frame (8) is a bearing seat or a bracket with different shapes.

7. A disturbance rejection precision centrifuge apparatus as claimed in claim 1, 2 or 3, wherein: the rotating shaft driving mechanism (5) is an electric spindle or a motor matched planetary gear box or a planetary gear mechanism driven by an air-floating rotary table or a planetary gear mechanism driven by a bearing spindle rotary table.

8. A disturbance rejection precision centrifuge apparatus as claimed in claim 1, 2 or 3, wherein: the support arm mechanism (2) and the main shaft rotating mechanism (1) are connected, and the support arm mechanism (2) and the precision end (3) are connected in a blind rivet connection mode, a screw connection mode, a riveting mode, a clamping hook connection mode, a hinge connection mode, a welding mode, a gluing mode, an expansion connection mode or a seam engagement mode.

9. A disturbance rejection precision centrifuge apparatus as claimed in claim 1, 2 or 3, wherein: the main shaft rotating mechanism (1) is a bearing main shaft rotary table or an air floatation rotary table.

10. A disturbance rejection precision centrifuge apparatus as claimed in claim 1, 2 or 3, wherein: the supporting arm mechanism (2) is of a single-arm type, a double-arm type, a truss type, a disc type or a cylinder type.

Technical Field

The invention relates to the technical field of centrifuges, in particular to an anti-disturbance device capable of rotating around the axis of the anti-disturbance device at a high speed.

Background

The centrifugal machine generally works in an indoor environment, and the influence of surrounding air flow and main shaft rotation errors in the process of rotating around the main shaft on the deflection and pitching of the centrifugal machine cannot be overcome in a high-speed rotating working state. But the prior centrifuge has insufficient disturbance resistance.

Disclosure of Invention

In order to solve the problem that the centrifugal machine is influenced by peripheral air flow during rotation and main shaft rotation error during rotation around the main shaft, the invention discloses an anti-disturbance precision centrifugal machine device which can resist the deflection and the pitching generated by the peripheral air flow of the centrifugal machine and the main shaft rotation error during rotation around the main shaft during rotation, and improve the anti-disturbance performance of the precision centrifugal machine.

The purpose of the invention is realized by the following technical scheme:

the invention discloses an anti-disturbance precise centrifugal machine device which comprises a main shaft rotating mechanism, a supporting arm mechanism, a precise end and an anti-disturbance device.

The support arm mechanism is fixedly arranged on the main shaft rotating mechanism, the end part of the support arm mechanism is fixedly connected with the precision end, the anti-disturbance device is fixedly connected with the support arm mechanism through a support frame, the support arm mechanism is driven to rotate by the main shaft rotating mechanism when the centrifugal machine rotates, and the support frame fixedly connected with the support arm mechanism drives the anti-disturbance device to integrally rotate around the main shaft along with the main shaft rotating mechanism.

Further, the anti-disturbance device comprises a rotating shaft driving mechanism, a rotating shaft, a bearing and a supporting frame. The end part of the rotating shaft is connected with a rotating shaft driving mechanism to drive the rotating shaft to rotate around the self axis at a high speed. The rotating shaft is connected with the inner wall of the bearing. The outer wall of the bearing is connected with the support frame. The whole anti-disturbance device arranged in the support frame rotates around the main shaft along with the main shaft rotating mechanism.

Furthermore, when the support arm mechanism is subjected to peripheral air flow and main shaft rotation errors in the main shaft rotation process around the main shaft of the main shaft rotation mechanism, the centrifugal machine generates deflection and pitching, the rotating shaft also rotates around the self shaft center at a high speed, and according to the gyro principle, the deflection and pitching generated by the centrifugal machine are resisted by the high-speed rotation of the rotating shaft around the self shaft center.

Further, the rotating shaft is provided with a key rotating shaft or an air floatation rotating shaft.

Further, the bearing is a hydraulic bearing or a rolling bearing or a sliding bearing or an air bearing or a combination bearing or a seated bearing or a flange bearing or a ball bushing.

Further, the support frame is a bearing seat or a bracket with different shapes.

Further, the rotating shaft driving mechanism is an electric spindle or a planetary gear box matched with a motor or a planetary gear mechanism driven by an air floatation rotary table or a planetary gear mechanism driven by a bearing spindle rotary table.

Furthermore, the connection mode of the support arm mechanism and the main shaft rotating mechanism and the connection mode of the support arm mechanism and the precision end are rivet connection, screw connection, riveting, clamping hook connection, hinge connection, welding, gluing connection, expansion connection or seam seaming connection.

Further, the spindle rotating mechanism is a bearing spindle turntable or an air floatation turntable.

Further, the supporting arm mechanism is of a single-arm type or a double-arm type or a truss type or a disc type or a cylinder type.

Has the advantages that:

the invention discloses an anti-disturbance precise centrifugal machine device, which resists the centrifugal machine from being subjected to surrounding air flow and deflection and pitching generated by main shaft rotation errors in the process of rotating around a main shaft by rotating around the self axis at a high speed through a rotating shaft, thereby achieving the anti-disturbance effect when the centrifugal machine rotates at a high speed.

Drawings

FIG. 1 is a schematic view of an anti-disturbance precision centrifuge apparatus.

Fig. 2 is a schematic view of an anti-disturbance device.

Fig. 3 is a schematic diagram of an anti-disturbance device driven by an electric spindle.

Fig. 4 is a schematic view of a disturbance rejection precision centrifuge apparatus driven by a planetary gear mechanism.

Fig. 5 is a schematic diagram of an anti-disturbance device driven by a planetary gear mechanism.

Fig. 6 is a schematic view of a planetary gear mechanism driving device.

Wherein: the device comprises a main shaft rotating mechanism 1, a supporting arm mechanism 2, a precision end 3, an anti-disturbance device 4, a rotating shaft driving mechanism 5, a rotating shaft 6, a bearing 7, a supporting frame 8, an electric main shaft 9, a planetary gear 10 and a bevel gear 11.

Detailed Description

For a better understanding of the objects and advantages of the present invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Example 1:

the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1

Referring to fig. 1 and 2, the anti-disturbance precise centrifuge device disclosed in this embodiment includes an air flotation turntable 1, a truss type support arm mechanism 2, a centrifuge experiment chamber 3, an anti-disturbance device 4, and is characterized in that the truss type support arm mechanism 2 is fixed on the air flotation turntable 1 through screw connection, an end portion of the truss type support arm mechanism 2 is connected with the centrifuge experiment chamber 3 through welding, a bearing seat 8 of the anti-disturbance device 4 is fastened and connected with the truss type support arm mechanism 2 through screws, two sides of the truss type support arm mechanism 2 are symmetrically and respectively provided with one anti-disturbance device 4, the centrifuge rotates by driving the truss type support arm mechanism 2 to rotate through the air flotation turntable 1, and the bearing seat 8 fixedly connected with the truss type support arm mechanism 2 drives the anti-disturbance device 4 to rotate integrally along with the air flotation turntable 1 around.

The anti-disturbance device 4 comprises a motor matched planetary gear box 5, a rotating shaft 6 with a key, a bearing 7 and a bearing seat 8. The bearing 7 is an angular contact ball bearing, the end part of the rotating shaft 6 with the key is connected with the planetary gear box 5 matched with the motor through a coupler, the rotating shaft 6 with the key is driven by the motor to rotate around the axis of the rotating shaft at a high speed, the rotating shaft 6 with the key is connected with the inner ring of the angular contact ball bearing 7 through hole-shaft matching, the inner ring of the angular contact ball bearing 7 is driven to rotate at a high speed, the outer ring of the angular contact ball bearing 7 is connected with the bearing seat 8, and the anti-disturbance device.

When the truss type supporting arm mechanism 2 generates deflection and pitching of the centrifuge due to surrounding air flow and main shaft rotation errors in the process of rotating around the main shaft of the air flotation turntable 1, the key rotating shaft 6 also rotates around the self shaft center at a high speed, and according to the gyro principle, the deflection and pitching generated by the centrifuge are resisted by the fact that the key rotating shaft 6 rotates around the self shaft center at a high speed.

Example 2

Referring to fig. 1 and fig. 3, the present embodiment discloses an anti-disturbance precision centrifuge apparatus, including an air flotation turntable 1, a truss type support arm mechanism 2, a centrifuge experiment chamber 3, an anti-disturbance device 4, and is characterized in that, the truss type support arm mechanism 2 is fixed on the air flotation turntable 1 through screw connection, an end of the truss type support arm mechanism 2 is connected with the centrifuge experiment chamber 3 through welding, a bearing seat 8 of the anti-disturbance device 4 is fastened and connected with the truss type support arm mechanism 2 through screws, two sides of the truss type support arm mechanism 2 are symmetrically and respectively provided with one anti-disturbance device 4, the centrifuge rotates by driving the truss type support arm mechanism 2 to rotate through the air flotation turntable 1, and the bearing seat 8 fixedly connected with the truss type support arm mechanism 2 drives the anti-disturbance device 4 to rotate integrally along with the air flotation.

The anti-disturbance device 4 comprises a bearing 7, a bearing seat 8 and an electric spindle 9. The bearing 7 is a tapered roller bearing, a rotating shaft of the electric main shaft 9 is matched and connected with an inner ring of the tapered roller bearing 7 through a hole shaft to drive the inner ring of the tapered roller bearing 7 to rotate at a high speed, an outer ring of the tapered roller bearing 7 is connected with a bearing seat 8, and the anti-disturbance device 4 integrally rotates around the main shaft along with the air floatation rotary table 1.

When the truss type supporting arm mechanism 2 generates deflection and pitching of the centrifuge due to surrounding air flow and main shaft rotation errors in the process of rotating around the main shaft of the air flotation turntable 1, the electric main shaft 9 also rotates around the self axis at a high speed, and the deflection and pitching generated by the centrifuge are resisted by the high-speed rotation of the electric main shaft 9 around the self axis according to the gyro principle.

Example 3

Referring to fig. 4, fig. 5 and fig. 6, the disturbance-resistant precision centrifuge apparatus disclosed in this embodiment includes an air flotation turntable 1, a truss type support arm mechanism 2, a centrifuge experiment chamber 3, and a disturbance-resistant device 4, and is characterized in that the truss type support arm mechanism 2 is fixed on the air flotation turntable 1 through screw connection, an end portion of the truss type support arm mechanism 2 is connected with the centrifuge experiment chamber 3 through welding, a bearing seat 8 of the disturbance-resistant device 4 is fastened and connected with the truss type support arm mechanism 2 through screws, two sides of the truss type support arm mechanism 2 are symmetrically and respectively provided with one disturbance-resistant device 4, the centrifuge rotates by driving the truss type support arm mechanism 2 to rotate through the air flotation turntable 1, and the bearing seat 8 fixedly connected with the truss type support arm mechanism 2 drives the disturbance-resistant device 4 to rotate integrally along with the air.

The disturbance resisting device 4 comprises a planetary gear mechanism 5 driven by an air-floating rotary table, a rotating shaft 6 with a key, a tapered roller bearing 7 and a bearing seat 8. The planetary gear mechanism 5 driven by the air-floatation rotary table comprises a group of planetary gears 10 and a pair of bevel gears 11, wherein the planetary gears 10 are connected with the bevel gears 11 through transmission shafts. The large gear ring of the planetary gear 10 is driven to rotate by the air floatation rotary table 1, the large gear ring drives the small gear, the small gear drives the bevel gear 11 to rotate through a transmission shaft and a thrust ball bearing on the transmission shaft, the bevel gear 11 transmits power to the keyed rotating shaft 6, so that the keyed rotating shaft 6 rotates around the axis of the keyed rotating shaft at a high speed, the keyed rotating shaft 6 is matched and connected with the inner ring of the tapered roller bearing 7 through a hole shaft, the inner ring of the tapered roller bearing 7 is driven to rotate at a high speed, the outer ring of the tapered roller bearing 7 is fixed with the bearing seat 8, and the anti-disturbance device.

When the truss type supporting arm mechanism 2 generates deflection and pitching of the centrifuge due to surrounding air flow and main shaft rotation errors in the process of rotating around the main shaft of the air flotation turntable 1, the key rotating shaft 6 also rotates around the self shaft center at a high speed, and according to the gyro principle, the deflection and pitching generated by the centrifuge are resisted by the fact that the key rotating shaft 6 rotates around the self shaft center at a high speed.

The above detailed description is intended to illustrate the objects, aspects and advantages of the present invention, and it should be understood that the above detailed description is only exemplary of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.