CN207968155U - A double self-lubricating bearing motor - Google Patents

Abstract

The utility model discloses a two self-lubricating bearing motors, including stator and rotor, its characterized in that, the inside cover of stator is equipped with the central siphon, is equipped with the dabber on the rotor, and the central siphon is inside to be inserted and to be equipped with first self-lubricating bearing and second self-lubricating bearing, first self-lubricating bearing is inserted and is located the central siphon, and the second is equipped with the dabber in the hole of first self-lubricating bearing of the lubricated packing into of self-lubricating bearing of second. The utility model discloses the relative rotary motion with dabber and single self-lubricating bearing of originality, decompose into the dabber to the normal relative rotary motion of self-lubricating bearing and the stack of the relative rotary motion of the slow and clearance nature of self-lubricating bearing, under the condition that vibrations or rotor angle change, with the relative rotary motion of dabber and second self-lubricating bearing, transmit between second self-lubricating bearing and the first self-lubricating bearing, thereby the dabber has been reduced greatly and the wearing and tearing that the direct relative rotary motion of self-lubricating bearing produced have reduced, the heat, the motor life is greatly prolonged.

Description

A double self-lubricating bearing motor

technical field

The utility model relates to the field of motors, in particular to a double self-lubricating bearing motor.

Background technique

The lubricating fluid is the lubricating medium when the mandrel corresponds to the bearing rotation, so as to reduce the friction loss between them. The lubricating oil will be gradually destroyed and lost with the friction of the rotation, and this loss will increase geometrically with the increase of temperature . Therefore, reducing the relative friction and reducing the temperature rise of the rotation can significantly improve the life of the self-lubricating bearing motor.

Ordinary self-lubricating bearing structure fan motor, its life is limited by the oil content of self-lubricating bearing lubricating oil, due to the limitation of processing technology and materials, at present, under the premise of maintaining the necessary strength, self-lubricating bearings can achieve an oil content of 20% Left and right, subject to this limitation, and the design of the fan motor, the self-lubricating bearing and the rotating shaft are not sealed, so there are problems of loss and volatilization of lubricating oil, vibration or angle changes during the rotation of the fan motor rotor, or occasional lubrication during motion If the oil is not replenished between the mandrel and the self-lubricating bearing in time, the oil film will be damaged or a normal oil film will not be formed, resulting in intermittent direct contact without oil film between the mandrel and the bearing, which will cause bearing wear and mandrel An important reason for surface damage, which will cause the operating lubrication environment between the two to deviate from the normal range of design, produce abnormal noise, and aggravate wear. This is another important reason for the limited life of self-lubricating bearings.

Utility model content

The purpose of this utility model is to provide a double self-lubricating bearing motor to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A motor with double self-lubricating bearings, including a stator and a rotor, a shaft tube is sleeved inside the stator, a mandrel is set on the rotor, a first self-lubricating bearing and a second self-lubricating bearing are inserted inside the shaft tube, After assembly, the first self-lubricating bearing is fixed in the shaft tube and cannot move freely relative to each other. The second self-lubricating bearing is slid into the inner hole of the first self-lubricating bearing. A mandrel is arranged in the inner hole of the second self-lubricating bearing. Through the inner hole of the second self-lubricating bearing, the mandrel can rotate in the inner hole of the second self-lubricating bearing during operation; the bottom of the shaft tube is provided with a metal magnetic gasket, and the magnetic force of the metal magnetic gasket attracts The mandrel reduces its left and right swing and up and down movement, and a magnetic ring is placed on the upper part of the first self-lubricating bearing.

As a further solution of the utility model: the first self-lubricating bearing and the shaft tube are tightly fitted.

As a further solution of the present invention: the top of the mandrel passes through the second self-lubricating bearing and directly contacts with the stroke point of the metal magnetic gasket.

As a further solution of the present invention: the outer diameter of the magnetic ring closely matches the inner diameter of the shaft tube, and a circular hole is opened in the center of the magnetic ring.

As a further solution of the utility model: the bottom of the shaft tube is provided with a metal magnetic gasket, and the upper part of the first self-lubricating bearing is provided with a magnetic ring.

Compared with the prior art, the beneficial effect of the utility model is: the utility model originality decomposes the relative rotational motion of the mandrel and a single self-lubricating bearing into the normal relative rotational motion of the mandrel to the self-lubricating bearing and the self-lubricating bearing. The superimposition of the slow and intermittent relative rotational motion of the bearing to the self-lubricating bearing transmits the relative rotational motion of the mandrel to the second self-lubricating bearing to the second self-lubricating bearing and the second self-lubricating bearing in case of vibration or rotor angle change Between a self-lubricating bearing, thereby greatly reducing the wear caused by the direct relative rotation of the mandrel and the self-lubricating bearing, reducing heat generation, greatly improving the life of the motor, and further reducing the up and down movement and left and right shaking of the rotor , adding metal magnetic gaskets and magnetic rings together to generate suction on the mandrel, reducing its left and right swings and up and down movement, more effectively improving the movement conditions, and significantly increasing the life of the motor.

Description of drawings

Figure 1 is a schematic structural diagram of a double self-lubricating bearing motor.

Fig. 2 is a schematic diagram of an enlarged structure of the rotor in a double self-lubricating bearing motor.

Fig. 3 is a schematic diagram of the internal structure of a double bearing in a double self-lubricating bearing motor.

Fig. 4 is a structural schematic diagram of the joint action of metal magnetic gaskets and magnetic rings in a double self-lubricating bearing motor.

In the figure: 1-mandrel, 2-first self-lubricating bearing, 3-second self-lubricating bearing, 4-shaft tube, 5-metal magnetic gasket, 6-magnetic ring.

Detailed ways

The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

Please refer to Figure 1-4, a double self-lubricating bearing motor, including a stator and a rotor, the stator is sleeved with a shaft tube 4, the rotor is provided with a mandrel, and the shaft tube 4 is inserted with a first self-lubricating bearing. The lubricating bearing 2 and the second self-lubricating bearing 3, the first self-lubricating bearing 2 and the shaft tube 4 are tightly fitted. After assembly, the first self-lubricating bearing 2 is fixed in the shaft tube 4 and cannot move freely relative to each other. The bearing 3 is slid into the inner hole of the first self-lubricating bearing 2, and the inner hole of the second self-lubricating bearing 3 is provided with a mandrel 1, and the mandrel 1 is inserted through the inner hole of the second self-lubricating bearing 3, and the core The shaft 1 can rotate in the inner hole of the second self-lubricating bearing 3; the bottom of the shaft tube 4 is provided with a metal magnetic gasket 5, and the top of the mandrel 1 passes through the second self-lubricating bearing 3 and directly contacts the metal magnetic gasket The stroke points of the sheets 5 are in contact with each other, and the magnetic force of the metal magnetic gasket 5 absorbs the mandrel 1 to reduce its left-right swing and up-and-down movement. A magnetic ring 6 is placed on the upper part of the first self-lubricating bearing 2, and the magnetic ring 6 The outer diameter of the shaft tube 4 is tightly matched with the inner diameter of the shaft tube 4, and a round hole is opened in the center of the magnetic ring 6 to allow the mandrel 1 to pass through. The magnetism of the magnetic ring 6 stabilizes the root of the mandrel 1 to limit the mandrel 1 from shaking left and right .

The preferred implementation of this patent has been described in detail above, but this patent is not limited to the above-mentioned implementation, and within the knowledge of those of ordinary skill in the art, it can also be made without departing from the purpose of this patent. Variations.

Claims (5)

1. a kind of double self-lubricating bearing motors, including stator and rotor, it is characterised in that:The stator interior is arranged with central siphon（4）, Rotor is equipped with mandrel（1）, central siphon（4）Inside is inserted with the first self-lubricating bearing（2）With the second self-lubricating bearing（3）, described first Self-lubricating bearing（2）It is inserted in central siphon（4）In, the second self-lubricating bearing（3）It is sliding to be packed into the first self-lubricating bearing（2）Endoporus in, second Self-lubricating bearing（3）Endoporus in be equipped with mandrel（1）, mandrel（1）It is inserted through the second self-lubricating bearing（3）Endoporus.

2. a kind of double self-lubricating bearing motors according to claim 1, it is characterised in that：First self-lubricating bearing（2）With Central siphon（4）Between be tight fit.

3. a kind of double self-lubricating bearing motors according to claim 1, it is characterised in that：The mandrel（1）Top pass through Second self-lubricating bearing（3）Directly with metal magnetic gasket（5）Row is at point-to-area contact.

4. a kind of double self-lubricating bearing motors according to claim 1, it is characterised in that：The central siphon（4）Bottom be equipped with Metal magnetic gasket（5）, the first self-lubricating bearing（2）Top place and be magnetic annulus（6）.

5. a kind of double self-lubricating bearing motors according to claim 4, it is characterised in that：The magnetism annulus（6）Outer diameter With central siphon（4）Internal diameter close-fitting, magnetic annulus（6）Center is provided with circular hole, and aperture is slightly larger than mandrel（1）Outer diameter.