CN205462776U8 - A kind of from trim centrifuge - Google Patents

Abstract

This utility model relates to a kind of from trim centrifuge, including main shaft, control main shaft and make its power source rotated around Pivot Point Center, center is through main shaft and along with the rotation dish of main axis, it is provided with several centrifugal tube chambers along its circumferencial direction on described rotation dish side, the described induction installation being additionally provided with sensing main shaft inclination on the main shaft of trim centrifuge, the described execution device that is additionally provided with on trim centrifuge, described execution device can carry out trim according to the signal that induction installation produces to rotation dish.

Description

A self-leveling centrifuge

technical field

The utility model relates to a kind of centrifuge structure, especially a kind of self-leveling centrifuge that can be automatically adjusted and balanced.

Background technique

[0002] A centrifuge is a machine that uses centrifugal force to separate components in a mixture of liquid and solid particles or liquid and liquid. Centrifuges are mainly used to separate solid particles from liquids in suspension, or to separate two immiscible liquids with different densities in emulsions (such as separating cream from milk); it can also be used to remove Liquids in wet solids, such as drying wet clothes with a washing machine; special super-speed tube separators can also separate gas mixtures of different densities; using the characteristics of different densities or particle sizes of solid particles in liquids, some sedimentation speeds are different. Centrifuges can also classify solid particles by density or particle size.

Traditional centrifuge comprises centrifugal chamber, power and transmission device, main shaft, makes centrifugal chamber make centrifugal motion by driving main shaft to rotate, but because each part weight is different in centrifugal process, its center of gravity will also be different, offset occurs during centrifugal Imbalance occurs from time to time, and it has almost become a major problem for centrifuges. Centrifugal imbalance will not only cause the centrifuge to collide with the outer casing and make a loud noise, but also have a huge impact on the service life of the centrifuge.

SUMMARY OF THE INVENTION

The problem to be solved by this utility model is to provide a kind of centrifuge structure, especially a kind of self-leveling centrifuge that can be automatically adjusted and balanced.

In order to solve the above-mentioned technical problem, comprise main shaft, control main shaft to make it make the power source of rotary motion around its own axis, center runs through main shaft and the rotating disk that rotates with main shaft, the side of described rotating disk is along its There are several centrifuge cavities in the circumferential direction, the main shaft of the self-leveling centrifuge is also provided with an induction device for sensing the roll of the main shaft, and the self-leveling centrifuge is also provided with an execution device, and the execution device can be adjusted according to the induction device. The generated signal is used to trim the rotating disc.

After adopting the above-mentioned structure, due to the induction device for sensing the roll of the main shaft is provided on one side of the rotating disk, when the main shaft rolls, it means that the centrifuge is unbalanced, and the imbalance is received by an induction device, and then the unbalanced The signal is transmitted to the actuator, through which the rotating disc is trimmed.

[0007] As a further improvement of the present utility model, the induction device is a plurality of strain gauges attached to the main shaft.

After adopting the above-mentioned structure, the working principle of the strain gauge is made based on the strain effect, that is, when the conductor or semiconductor material is mechanically deformed under the action of external force, its resistance value changes accordingly, and this phenomenon is called "Strain effect", through each strain gage attached to the main shaft, once the main shaft is tilted, the strain gage will produce a resistance change, and the resistance change will be transmitted to the actuator as a signal.

[0009] As a further improvement of the present utility model, the strain gauge transmits the signal to the execution device through a signal receiving and transmitting device.

[0010] After adopting the above structure, a signal receiving and transmitting device is used as a transmission medium between the strain gauge and the actuator.

[0011] As a further improvement of the present utility model, the several execution devices are circumferentially arranged on the rotating disk with the main shaft as the center of the circle, and the execution device includes an execution block and a drive that controls the execution block to move in the opposite direction of the main shaft roll. one

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[0012] After adopting the above structure, the drive unit drives the execution block to move in the opposite direction of the main shaft roll, and utilizes the weight of the execution block itself to achieve the technical effect of trimming.

As a further improvement of the present utility model, the execution device includes the polished rod guide rail fixed on the rotating disk and the lead screw that is erected between the polished rod guide rails, and the execution block is a configuration that can slide on the polished rod guide rail. The weights are distributed at intervals and the rotating disk is divided into a number of fan-shaped areas with uniform areas.

After adopting the above-mentioned structure, by the setting of guide rail and lead screw, the rotatable lead screw just can move the counterweight on the guide rail, and the setting of the counterweight divides the rotating disk into several fan-shaped areas with uniform area, Equivalent to a counterweight block can correspond to a sector area in the opposite direction, when the main shaft side is inclined to a sector area, the corresponding counterweight block will rely on the guide rail to move in the opposite direction to achieve the technical effect of balancing.

Description of drawings

Fig. 1 is centrifuge structure side view shown in Fig. 1;

[0016] Fig. 2 is a top view of the centrifuge structure.

detailed description

As shown in Fig. 1 Fig. 2, comprise main shaft 1, control main shaft 1 to make it make the power source 2 of rotary motion around its own axis, center runs through main shaft and 1 and the rotating disk 3 that rotates with main shaft, described A number of centrifuge cavities 4 are arranged on the side of the rotating disc 3 along its circumferential direction. The main shaft of the self-leveling centrifuge is also provided with an induction device 5 for sensing the roll of the main shaft. The self-leveling centrifuge is also provided with The actuator 6 can trim the rotating disk according to the signal generated by the induction device. Since the induction device 5 for sensing the roll of the main shaft is arranged on the side of the rotating disk, when the main shaft rolls, it means that the centrifuge is out of balance. The device then trims the rotating disc. The sensing device is a plurality of strain gauges 51 attached to the main shaft. The working principle of the strain gauge is based on the strain effect, that is, when the conductor or semiconductor material is mechanically deformed under the action of external force, its resistance value changes accordingly. This phenomenon is called "strain effect". The 51 is attached to the main shaft I. Once the main shaft I is tilted, the strain gauge 51 will produce a resistance change, and the resistance change will be transmitted to the actuator as a signal. The strain gauge 51 transmits the signal to the execution device through a signal receiving and transmitting device. The signal receiving and transmitting device is used as a transmission medium between the strain gauge 51 and the actuator.

As shown in Fig. 2, described several execution devices take main shaft 1 as the center of circle and are circumferentially arranged on the rotating disk, and described execution device 6 comprises execution block and the drive that controls this execution block to move in the opposite direction of main shaft roll unit. The drive unit drives the execution block to move in the opposite direction of the main shaft roll, and uses the weight of the execution block itself to achieve the technical effect of trimming. The execution device includes a polished rod guide rail fixed on the rotating disk. Through the arrangement of the guide rail 63 and the screw rod 64, the counterweight block can be moved on the guide rail by rotating the screw rod, and the execution block can be moved on the polished rod guide rail. For the sliding counterweight 61 , the several actuators are distributed at intervals and divide the rotating disk into several fan-shaped areas 62 with uniform areas. The setting of the counterweight blocks divides the rotating disk into several fan-shaped areas 62 with uniform area, which is equivalent to a counterweight block corresponding to a fan-shaped area in the opposite direction. It will rely on the guide rail to move in the opposite direction to achieve the technical effect of trimming.

Claims (5)

1. A self-leveling centrifuge, comprising a main shaft, a power source for controlling the main shaft to make a rotary motion around its own axis, the center running through the main shaft and a rotating disk that rotates with the main shaft, and the side of the rotating disk is along its side. There are several centrifugal cavities in the circumferential direction, and it is characterized in that: the main shaft of the self-leveling centrifuge is also provided with an induction device for sensing the inclination of the main shaft, and the self-leveling centrifuge is also provided with an executive device, and the executive device The rotating disc can be trimmed in response to a signal from the sensing device. 2. self-levelling centrifuge according to claim 1, is characterized in that: described induction device is several strain gauges that are fitted on the main shaft. 3. The self-leveling centrifuge according to claim 2, wherein the strain gauge transmits the signal to the execution device by a signal receiving and transmitting device. 4. The self-leveling centrifuge according to claim 1, wherein the plurality of execution devices are circumferentially arranged on the rotating disk with the main shaft as the center of the circle, and the execution device comprises an execution block and controls the execution block to the main shaft. The drive unit moves in the opposite direction of the roll. 5. self-leveling centrifuge according to claim 4, is characterized in that: described execution device comprises the polished rod guide rail that is fixed on the rotating disk and the lead screw that is erected between the polished rod guide rails, and the described execution block is a The counterweight blocks sliding on the polished rod guide rail, the several actuators are distributed at intervals and the rotating disk is divided into several fan-shaped areas with uniform area.