CN202628877U

CN202628877U - Stepped magnetorheogical fluid coupling

Info

Publication number: CN202628877U
Application number: CN 201220279655
Authority: CN
Inventors: 李自漾; 王鸿云; 郑洋洋; 徐灯; 张新华; 廖文藏; 金程飞; 孔小刚; 黄晓东
Original assignee: Zhejiang Normal University CJNU
Current assignee: Zhejiang Normal University CJNU
Priority date: 2012-06-08
Filing date: 2012-06-08
Publication date: 2012-12-26
Anticipated expiration: 2022-06-08

Abstract

The utility model discloses a stepped magnetorheogical fluid coupling, which comprises a driving shaft, a driving disc, a driven shaft and a driven disc, wherein the driving disc is mutually connected with the driving shaft; the driven disc is mutually connected with the driven shaft; a closed working cavity of which the cross section is in a shape of at least one step is arranged between the driving shaft and the driven shaft; magnetorheogical fluid is arranged in the working cavity; and the driving disc or the driven disc is provided with a coil. The stepped magnetorheogical fluid coupling has the advantages higher pressure stress and higher shear stress are generated through a magnetorheogical fluid device, so that torsion which is high enough is generated on a driving shaft side disc, and a driven shaft side disc is driven to rotate together; different pressure stress and shear stress can be generated by the magnetorheogical fluid by different current strength, and through the stepped working cavity, the contact area between the magnetorheogical fluid and the driving disc and the contact area between the magnetorheogical fluid and the driven disc are increased, thus, enough pressure stress and shear stress can be provided, so that the driving disc and the driven disc synchronously rotate. The stepped magnetorheogical fluid coupling is smaller in size, compact in structure, small in occupied space, simple and convenient in control and easy in operation.

Description

A kind of stepped shaft magnetic flow liquid coupling

Technical field

The utility model relates to a kind of stepped shaft magnetic flow liquid coupling.

Background technique

Traditional machenical coupling exist impact, inertia is big, fretting wear and defectives such as heating is serious, working life short, control inconvenience.In recent years; The magnetic flow liquid technical development is rapid; The magnetic flow liquid coupling can overcome the shortcoming of traditional mechanical formula coupling; Through changing the just size of control apparatus transmitting torque easily of size of current, control is simple, make things convenient for, so the application of magnetic flow liquid coupling on the transmission engineering more and more widely.Yet the rotation of the moving side panel of present existing magnetic flow liquid coupling principal and subordinate is not exclusively synchronous, can not reach certain job requirement.

The model utility content

The purpose of the utility model is to provide a kind of stepped shaft magnetic flow liquid coupling, can effectively solve the incomplete synchronous problem of rotation of the moving side panel of existing magnetic flow liquid formula coupling principal and subordinate.

In order to solve the problems of the technologies described above; The utility model is realized through following technological scheme: a kind of stepped shaft magnetic flow liquid coupling; Comprise driving shaft, the driving disc that links to each other with driving shaft, driven shaft, the driven disc that links to each other with driven shaft; The cross section that is provided with sealing between said driving shaft and the driven shaft is the step-like active chamber of at least one joint, is provided with magnetic flow liquid in the said active chamber, and said driving disc or driven disc are provided with coil.

Preferably, said driving disc or driven disc are provided with the coil with active chamber cross section ladder joint number equal sets number; Be convenient to magnetic flow liquid control.

Preferably, said coil is arranged on the driven disc; When driven disc does not rotate, the coil life-span there is not influence.

Preferably, have the coil groove that equates with the coil groups number on the said driven disc, said coil is arranged in the coil groove; Reduce the coupling volume.

Preferably, be provided with insulation board between said coil and the magnetic flow liquid; Prevent electric leakage.

Preferably, perhaps be welded to connect through bolt between said driving shaft and the driving disc; Perhaps be welded to connect through bolt between said driven shaft and the driven disc; Placement is simple and convenient, is convenient to loading and unloading.

Compared with prior art, the utility model has the advantages that: produce big pressure stress and shearing stress through this magnetic flow liquid device, make the driving shaft side panel produce enough big moment of torsion; Drive the driven shaft side panel and rotate together, different size of current can make magnetic flow liquid produce different pressure stress and shearing stress, through step-like active chamber; Make the area of contact of magnetic flow liquid and driving disc and driven disc increase, enough pressure stress and shearing stress can be provided, driving disc and driven disc are rotated synchronously; And volume is less, compact structure, and it is little to take up room; Control simple and convenient, easy operating.

Description of drawings

Fig. 1 is the structural representation of a kind of stepped shaft magnetic flow liquid of the utility model coupling.

Embodiment

Consult the embodiment of Fig. 1 for a kind of stepped shaft magnetic flow liquid of the utility model coupling; A kind of stepped shaft magnetic flow liquid coupling; Comprise driving shaft 1, the driving disc 2 that links to each other with driving shaft 1, driven shaft 4, the driven disc 3 that links to each other with driven shaft 4, the cross section that is provided with sealing between said driving shaft 1 and the driven shaft 4 is the step-like active chamber of at least one joint, is provided with magnetic flow liquid 7 in the said active chamber; Said driven disc 3 is provided with coil 5; Said driven disc 3 is provided with the coil 5 with active chamber cross section ladder joint number equal sets number, has coil 5 grooves that equate with 5 groups of numbers of coil on the said driven disc 3, and said coil 5 is arranged in coil 5 grooves; Be provided with insulation board 6 between said coil 5 and the magnetic flow liquid 7, perhaps be welded to connect through bolt between said driving shaft 1 and the driving disc 2; Perhaps be welded to connect through bolt between said driven shaft 4 and the driven disc 3.

Coil 5 links to each other with external circuitry through lighting outlet, and when the external circuitry no electric circuit, coil 5 does not produce magnetic field, and magnetic flow liquid 7 does not almost produce pressure stress and shearing stress, and driving shaft 1 drives driving disc 2 and rotates, and driven disc 3 does not rotate; When external circuitry is switched on, coil 5 generation magnetic fields, sclerosis takes place the magnetic flow liquid 7 of this moment becomes the viscosity plastomer; Produce pressure stress and shearing stress, and excitation is strong more, pressure stress and shearing stress are big more; The effect that produce power between driven disc 3 and the driving disc 2 this moment, driven disc 3 are along with driving disc 2 rotates together, through regulating the size of current of external circuitry; Just can regulate the excitation size, regulate pressure stress and shearing stress size then, driving disc 2 and driven disc 3 are being rotated synchronously.

The above is merely the specific embodiment of the utility model; But the technical characteristics of the utility model is not limited thereto; Any those skilled in the art is in the field of the utility model, and variation of being done or modification all are encompassed among the claim of the utility model.

Claims

1. stepped shaft magnetic flow liquid coupling; Comprise driving shaft (1), the driving disc (2) that links to each other with driving shaft (1), driven shaft (4), the driven disc (3) that links to each other with driven shaft (4); It is characterized in that: the cross section that is provided with sealing between said driving shaft (1) and the driven shaft (4) is the step-like active chamber of at least one joint; Be provided with magnetic flow liquid (7) in the said active chamber, said driving disc (2) or driven disc (3) are provided with coil (5).

2. a kind of stepped shaft magnetic flow liquid coupling as claimed in claim 1 is characterized in that: said driving disc (2) or driven disc (3) are provided with the coil (5) with active chamber cross section ladder joint number equal sets number.

3. according to claim 1 or claim 2 a kind of stepped shaft magnetic flow liquid coupling, it is characterized in that: said coil (5) is arranged on the driven disc (3).

4. a kind of stepped shaft magnetic flow liquid coupling as claimed in claim 3 is characterized in that: have coil (5) groove that equates with coil (5) group number on the said driven disc (3), said coil (5) is arranged in coil (5) groove.

5. a kind of stepped shaft magnetic flow liquid coupling as claimed in claim 4 is characterized in that: be provided with insulation board (6) between said coil (5) and the magnetic flow liquid (7).

6. a kind of stepped shaft magnetic flow liquid coupling as claimed in claim 1 is characterized in that: perhaps be welded to connect through bolt between said driving shaft (1) and the driving disc (2).

7. a kind of stepped shaft magnetic flow liquid coupling as claimed in claim 1 is characterized in that: perhaps be welded to connect through bolt between said driven shaft (4) and the driven disc (3).