CN109578460B - Trapezoidal inner wall cylinder type coupler based on magnetorheological fluid - Google Patents
Trapezoidal inner wall cylinder type coupler based on magnetorheological fluid Download PDFInfo
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- CN109578460B CN109578460B CN201811476759.1A CN201811476759A CN109578460B CN 109578460 B CN109578460 B CN 109578460B CN 201811476759 A CN201811476759 A CN 201811476759A CN 109578460 B CN109578460 B CN 109578460B
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- 239000012530 fluid Substances 0.000 title claims abstract description 39
- 230000008878 coupling Effects 0.000 claims description 25
- 238000010168 coupling process Methods 0.000 claims description 25
- 238000005859 coupling reaction Methods 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 13
- 230000005291 magnetic effect Effects 0.000 claims description 6
- 238000002955 isolation Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010008 shearing Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D37/00—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
- F16D37/02—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D35/00—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
- F16D35/02—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part
- F16D35/028—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part actuated electrically, e.g. by an electromagnet
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to a cylinder type coupler with a trapezoidal inner wall based on magnetorheological fluid, which consists of an input group and an output group, wherein the input group comprises an input shaft, an input end shell, an electromagnetic coil and the like; the output group comprises an output shaft, a spring, an output end shell and the like. The groove at the tail end of the input shaft is matched with the protrusion at the tail end of the output shaft, the trapezoidal teeth on the outer circumference of the input shaft are matched with the trapezoidal grooves on the inner circle side of the output shaft, magnetorheological fluid is filled in the matching surfaces, and the input end shell and the output end shell are connected and sealed. The coupler is provided with the trapezoidal tooth-trapezoidal groove structure, and the spring is added in the axial direction, so that the horizontal vibration isolation effect is improved, and the vibration and noise of the coupler during working are reduced; meanwhile, the vibration isolation device has the advantages of simple structure, convenience in processing and maintenance and the like, is suitable for places with non-high power, and can achieve a good vibration isolation effect without precise design and processed parts. The invention solves the problems of vibration and noise generated by mechanical contact in the process of transmitting force and moment of the automobile coupler.
Description
Technical Field
The invention relates to a cylindrical coupler, in particular to a cylindrical coupler with a trapezoidal inner wall based on magnetorheological fluid, which can be applied to connection between two shafts or a shaft of an automobile and a rotating part to avoid mechanical contact.
Background
With the development of the automobile industry, higher requirements are put forward on the riding comfort of automobiles, and an automobile coupling is one of important factors influencing the NVH (noise, vibration and harshness) performance of chassis transmission. The conventional coupling generally transmits force and torque through hydraulic transmission, and although vibration and impact generated by mechanical contact can be solved, the transmission efficiency is reduced, the structure is complex, and the maintenance is inconvenient.
The magnetorheological fluid is an intelligent material with great development prospect and engineering application value and is composed of suspended particles, a stabilizer, ferromagnetic and easily-magnetized particles and the like. The magnetorheological fluid can be converted from a liquid-like state to a solid-like state within milliseconds under the action of a magnetic field. In the conversion process, the viscosity of the magnetorheological fluid keeps continuous and stepless change, the whole conversion process is extremely fast and controllable, the energy consumption is extremely low, and the real-time active control can be realized. In the conversion process, the shearing force on the contact surface in the state conversion process can be changed by controlling the magnitude of the current, so that the coupler does not have mechanical contact and works efficiently in the process of transmitting force and moment.
At present, the cylindrical and disc type couplings are widely applied, the disc type coupling is mainly combined with a plurality of parallel disc-shaped planes through a driving shaft, magnetorheological fluid is filled between the adjacent planes, the transmission of power from the driving shaft to a driven shaft is realized through shearing force on the adjacent planes after an electromagnetic coil is electrified, and the coupling is complex in structure, difficult to maintain and assemble and large in size. While cylindrical couplings typically rely on shear forces between the walls of the driving and driven shafts to transmit forces and moments, couplings of this type are typically relatively large in construction. Chinese patent CN 103062242A discloses a power transmission device and a magnetorheological coupling of an electrically operated driver, which have four shafts in common, so that it has great precision requirements on spatial arrangement and installation. Chinese patent CN 102748407A discloses a magnetorheological elastic coupling, which has the disadvantage that the working area of the magnetorheological fluid between an input shaft and an output shaft is too small and is limited to the circumferential surface, so that the power and torque transmitted by the coupling are limited. In summary, it is necessary to improve the cylinder type automobile coupler to achieve simple structure, reliable operation and reduction of transmission noise and vibration.
Disclosure of Invention
The invention aims to provide a trapezoidal inner wall cylinder coupling based on magnetorheological fluid, aiming at the defects of shaking, impact and noise generated by mechanical contact in the process of transmitting force and moment of the existing coupling.
The purpose of the invention is realized by the following technical scheme, which is described by combining the accompanying drawings as follows:
a cylindrical coupler with a trapezoidal inner wall based on magnetorheological fluid is composed of an input group and an output group.
The input group comprises an input shaft 1, an input end cover 3, a bolt I4, a rolling bearing I5, a sealing ring 6, an input end shell 7, a groove 23, a trapezoidal tooth structure 24 and the like. Input shaft 1 supports on input casing 7 through antifriction bearing I5, and antifriction bearing I5 inboard is fixed through the shaft shoulder, and the bearing outside is fixed through input end cover 3, and the inside sealed felt 2 that sets up of end cover, input end cover 3 pass through bolt I4 and are connected with input casing 7, set up sealing washer 6 between input shaft 1 and the input casing 7. The circumferential surface of the tail end of the input shaft 1 is axially provided with a trapezoidal tooth structure 24, the circular section of the tail end of the input shaft 1 is provided with 8 grooves 23 which are uniformly distributed in the circumference and matched with the protrusions 26 on the circular section of the output shaft 20, and the matching surface is filled with the magnetorheological liquid 21, so that the working area of the magnetorheological liquid 21 is increased.
The output group comprises an annular sealing ring 11, a sealing block 13, a bolt III 14, an output end shell 15, a bolt IV 16, an output end cover 17, a rolling bearing II 18, a spring 19, an output shaft 20, magnetorheological liquid 21 and the like. The output shaft 20 is supported on the output end shell 15 through a rolling bearing II 18, the rolling bearing II 18 is fixed through a shaft shoulder, the outer side of the rolling bearing II is fixed through an output end cover 17, and a sealing felt 2 is arranged inside the end cover. The output end shell 15 is connected with the input end shell 7 through a bolt 14, a sealing block 13 is arranged at the joint, and an annular sealing ring 11 is arranged between the outer circumference of the output shaft 20 and the outer shell to realize sealing. The inner wall of the cylinder of the output shaft 20 is axially provided with a trapezoidal groove structure 25, 8 protrusions 26 which are uniformly arranged on the circumference are arranged in the circular section of the tail end of the shaft, when the input shaft 1 is matched with the output shaft 20, the protrusions 26 are embedded into the grooves 23, and the adjacent matching surfaces are filled with magnetorheological liquid 21. A spring 19 is arranged in a circular cavity at the inner side of the output shaft 20, one side of the spring 19 is fixed on the side wall of the output shaft 20, and the other side of the spring is in a free extension rotating state. When the clutch is in operation, the electromagnetic coil 22 is energized, and each clutch is now filled with magnetic field. The magnetorheological fluid 21 between the circular cross section of the tail end of the input shaft 1 and the circular cross section of the tail end of the output shaft 20 is converted into a solid-like state by the liquid-like state, and the shearing force on the adjacent surfaces can drive the output shaft 20 to rotate along with the input shaft 1, so that the shaking and the impact generated by the mechanical contact of the traditional coupler are avoided. Because the corresponding trapezoidal tooth of input shaft 1 and output shaft 20 and the cooperation of structures such as trapezoidal groove have greatly increased total working area and shearing force. When the input shaft 1 and the output shaft 20 have axial relative displacement and then press the spring 19, the spring 19 can counteract most kinetic energy in advance so as to avoid the impact of the input shaft 1 and the output shaft 20 in the horizontal direction.
The input shaft 1 and the output shaft 20 are coaxial, a groove 23 is formed in the tail end of the input shaft 1, a protrusion 26 is formed in the tail end of the output shaft 20, and the protrusion 26 at the tail end of the output shaft 20 is embedded into the groove 23. The circumference of the input shaft 1 is arranged into a trapezoidal tooth structure 24, the outermost circular inner wall of the output shaft 20 is arranged into a trapezoidal groove structure 25, and after the input shaft and the output shaft are matched, the adjacent countless contact surfaces are filled with the magnetorheological liquid 21.
An electromagnetic coil 22 is arranged on the outer side of the input end shell 7, two sides of the electromagnetic coil 22 are axially fixed through two circular rings 8, and a coil protection cover 9 is arranged on the outer side of the electromagnetic coil 22. The coil protective cover 9 and the circular ring 8 are connected with the input end shell 7 and the output end shell 15 through bolts II 10.
Compared with the prior art, the invention has the beneficial effects that:
the cylinder coupling is designed based on magnetorheological fluid and is divided into an input group and an output group, wherein a closed space between an input shaft and an output shaft is filled with the magnetorheological fluid, and an input end shell and an output end shell are connected through bolts and seal rings and the like to realize the sealing of an inner cavity of the coupling. In the radial direction of the coupler, the trapezoidal groove and the trapezoidal tooth structure between the input shaft and the output shaft, and the grooves and the protrusions on the circular cross sections at the tail ends of the input shaft and the output shaft can avoid vibration, impact and noise generated by mechanical contact. In the axial direction, the spring in the circular cavity of the output shaft can greatly reduce the impact energy and force brought by the axial movement of the input shaft and the output shaft. The invention is a non-contact vibration isolation system, and increases the vibration isolation effect of the coupler during working. On the basis of the structure of the existing coupler, a trapezoidal tooth-trapezoidal groove structure is added, and a spring is added in the axial direction, so that the horizontal vibration isolation effect is improved, and the vibration and noise of the coupler during working are reduced. Meanwhile, the vibration isolator has the advantages of simple structure, convenience in processing and maintenance and the like, is suitable for places with non-high power, and can achieve a good vibration isolation effect without precise design and processed parts.
Drawings
FIG. 1 is an isometric view of an input shaft of a magnetorheological fluid based trapezoidal inner wall cylindrical coupling of the present invention;
FIG. 2 is a right side view of an input shaft of a cylinder type coupler with a trapezoidal inner wall based on magnetorheological fluid according to the invention;
FIG. 3 is an isometric view of an output shaft of a magnetorheological fluid based trapezoidal inner wall cylindrical coupling of the present invention;
FIG. 4 is a right side view of an output shaft of a cylinder type coupler with a trapezoidal inner wall based on magnetorheological fluid according to the invention;
FIG. 5 is a diagram showing the spatial relative positions of an input shaft and an output shaft of a cylindrical coupler with a trapezoidal inner wall based on magnetorheological fluid according to the invention;
FIG. 6 is a cross-sectional view of a cylinder type coupler with trapezoidal inner wall based on magnetorheological fluid according to the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6;
FIG. 8 is a cross-sectional view of a trapezoidal inner wall cylinder coupling A-A based on magnetorheological fluid according to the present invention.
In the figure, 1, an input shaft 2, a sealing felt 3, an input end cover 4, a bolt I5, a rolling bearing I6, a sealing ring 7, an input end shell 8, a circular ring 9, a coil protection cover 10, a bolt II 11, an annular sealing ring 13, a sealing block 14, a bolt III 15, an output end shell 16, a bolt IV 17, an output end cover 18, a rolling bearing II 19, a spring 20, an output shaft 21, magnetorheological liquid 22, an electromagnetic coil 23, a groove 24, a trapezoidal tooth structure 25, a trapezoidal groove structure 26 and a protrusion are arranged.
Detailed Description
The invention provides the idea of designing the vibration isolation and noise reduction coupling, which comprises the following steps: when the magnetorheological fluid is converted from a liquid-like state to a solid-like state under the action of a magnetic field, the shearing force generated on the adjacent contact surfaces enables the input shaft and the output shaft to synchronously rotate, so that the vibration and noise generated when the common coupling is in mechanical contact are reduced. Meanwhile, the spring in the horizontal position can reduce impact noise and vibration caused by axial movement of the shaft to a certain extent.
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 and 2 are perspective views and right side views of an input shaft of a cylinder type coupler with trapezoidal inner wall based on magnetorheological fluid. The outer circumference of the tail end of the input shaft 1 is manufactured into a trapezoidal tooth structure 24 along the axial direction, and 8 grooves 23 which are uniformly distributed around the circumference are arranged in the circular section of the tail end of the input shaft 1. The trapezoidal tooth structure 24 is matched with the trapezoidal groove structure 25 at the tail end of the output shaft 20, the groove 23 in the circular section at the tail end of the input shaft 1 is matched with the protrusion 26 in the circular section at the tail end of the output shaft 20, and gaps in the matching surfaces are filled with the magnetorheological liquid 21.
Fig. 3 and 4 are perspective views and right side views of an output shaft of a cylinder type coupler with trapezoidal inner wall based on magnetorheological fluid. The outer circumference of the tail end of the output shaft 20 is manufactured into a trapezoidal groove structure 25 along the axial direction, 8 bulges 26 which are uniformly distributed around the circumference are arranged in the circular cross section of the tail end of the output shaft 20, a circular cavity is arranged in the circular cross section of the tail end of the output shaft 20, a spring 19 is arranged in the circular cavity, one side of the spring 19 is directly connected with the side wall of the circular cavity, and the other side of the spring is in a free extension state. When the input shaft 1 and the output shaft 20 move axially (the distance is reduced, the two shafts are close to each other), the elastic force of the spring 19 can reduce the collision force and the collision capacity of the two shafts when in contact, and reduce the vibration noise and the impact.
Fig. 5 shows the relative spatial position between the input shaft 1 and the output shaft 20 of the cylinder type coupling with trapezoidal inner walls based on magnetorheological fluid. The trapezoidal tooth structure 24 at the tail end of the input shaft 1 is axially matched with the trapezoidal groove 25 structure at the tail end of the output shaft 20, the input shaft 1 penetrates into the inner cylinder wall of the output shaft 20 along the axis, and the groove 23 at the tail end of the input shaft is embedded in the protrusion 26 at the tail end of the output shaft. In normal operation, the spring 19 in the circular cavity is in a free state, the mutually matching surfaces are filled with the magnetorheological fluid 21, free flow is realized, and the external space is sealed.
Fig. 6 and 7 are cross-sectional views of cylinder type couplings with trapezoidal inner walls based on magnetorheological fluid. The input shaft 1 and the input shaft 20 are supported on the input end shell 7 and the output end shell 15 through a rolling bearing I5 and a rolling bearing II 18 respectively, the inner sides of the rolling bearings are axially fixed through shaft shoulders respectively, and the outer sides of the rolling bearings are axially fixed through an input end cover 3 and an output end cover 17. The inner sides of the input end cover 3 and the output end cover 17 are both provided with a sealing felt 2 for preventing liquid leakage, and the input end cover 3 and the output end cover 17 are respectively connected with the input end shell 7 and the output end cover 15 through bolts I4 and IV 16. The input shaft 1 and the output shaft 20 are axially collinear, a trapezoidal tooth structure 24 at the tail end of the input shaft 1 is matched with a trapezoidal groove structure 25 at the tail end of the output shaft 20, a groove 23 in a circular section at the tail end of the input shaft 1 is matched with a protrusion 26 in a circular section at the tail end of the output shaft 20, a circular cavity is arranged in the circular section at the tail end of the output shaft 20, a spring 19 arranged in the cavity is in a free extension state, and the matching surfaces are filled with magnetorheological liquid 21. The outermost circumference of the output shaft 20 is matched with the inner circle of the annular sealing ring 11, and the outer circle of the sealing ring 6 is matched with the input end shell 7. The electromagnetic coil 22 is arranged outside the input end shell 7, two circular rings 8 are respectively arranged on two sides of the electromagnetic coil 22 to realize axial fixation, and a coil protection cover 9 is arranged on the outer side of the electromagnetic coil 22. The coil protective cover 9 is connected with the two circular rings 8, the input end shell 7 and the output end shell 15 through bolts II 10 respectively, the input end shell 7 is connected with the output shaft shell 15 through bolts IV 14, and a sealing block 13 is arranged at the connection position.
As shown in fig. 8, which is a cross-sectional view a-a of the trapezoidal inner wall cylindrical shaft coupling based on the magnetorheological fluid meter of the present invention, the electromagnetic coil 22 is disposed between the coil protection cover 9 and the output shaft housing 15, and the inner circle of the annular sealing ring 11 is engaged with the end of the output shaft 20. 8 trapezoidal grooves 23 which are uniformly distributed on the circumference in the circular section of the tail end of the output shaft are matched with 8 protrusions 26 at corresponding positions in the circular section of the tail end of the output shaft, and a trapezoidal tooth structure 24 which is axially distributed at the tail end of the input shaft 1 is matched with a trapezoidal groove structure 25 which is axially distributed at the tail end 20 of the output shaft. The gaps of the matching surfaces are filled with magnetorheological liquid 21, a spring 19 is arranged in the circular cavity at the tail end of the output shaft 20, one side of the spring 19 is fixed on the inner side wall of the circular cavity at the tail end of the output shaft, and the other end of the spring is in a free state.
The specific implementation process and the vibration isolation principle are as follows:
when the coupling works, the electromagnetic coil 22 is electrified, and at the moment, the closed space inside the input shaft 1 and the output shaft 20 is filled with a magnetic field. Under the action of a magnetic field, magnetorheological liquid 21 is filled in matching surfaces of an axial trapezoidal tooth structure 24 at the tail end of the input shaft 1 and an axially distributed trapezoidal groove structure 25 at the tail end of the output shaft 20, the magnetorheological liquid 21 is filled in matching surfaces of 8 grooves 23 in a circular cross section at the tail end of the input shaft 1 and 8 protrusions 26 at the tail end of the output shaft, the magnetorheological liquid 21 (except matching surfaces of groove parts) in the output shaft 20 and other parts of the circular cross section of the input shaft 1 is converted into a solid-like state from a liquid-like state, and shearing force generated in matching drives the output shaft 20 and the input shaft 1 to rotate simultaneously. When the input shaft 1 and the output shaft 20 of the coupling have axial relative displacement, the spring 19 can buffer the impact energy and force when the two shafts approach. When the coupler does not work and the electromagnetic coil 22 is not electrified, the magnetorheological fluid 21 in the matching surface is in a liquid-like state, the power between the input shaft 1 and the output shaft 20 cannot be transmitted, and the input shaft 1 and the output shaft 20 do not rotate.
The above description is a preferred embodiment of the present invention, but the present invention should not be limited to the disclosure of the embodiment and the drawings. Therefore, it is intended that all equivalents and modifications which do not depart from the spirit of the invention disclosed herein are deemed to be within the scope of the invention.
Claims (10)
1. The utility model provides a trapezoidal inner wall cylinder formula shaft coupling based on magnetic current becomes liquid which characterized in that: the device is composed of an input group and an output group;
the input group mainly comprises an input shaft (1) and an input end shell (7), the input shaft (1) is matched with the input end shell (7) through a rolling bearing I (5), and an electromagnetic coil (22) is arranged on the outer side of the input end shell (7);
the output group mainly comprises an output end shell (15), an output shaft (20) and a spring (19) with one side fixed on the inner wall of the output shaft (20), and the output shaft (20) is matched with the output end shell (15) through a rolling bearing II (18);
the input shaft (1) and the output shaft (20) are coaxial, a groove (23) is formed in the tail end of the input shaft (1), a protrusion (26) matched with the groove (23) is formed in the tail end of the output shaft (20), a trapezoidal tooth structure (24) is axially arranged on the outer circumference of the tail end of the input shaft (1), and a trapezoidal groove structure (25) matched with the trapezoidal tooth structure (24) is axially arranged on the inner wall of the output shaft (20); gaps in the matching surfaces of the grooves (23) and the protrusions (26) and the trapezoidal tooth structures (24) and the trapezoidal groove structures (25) are filled with magnetorheological liquid (21); the output end shell (15) is connected with the input end shell (7) in a sealed mode.
2. The cylindrical coupler with trapezoidal inner wall based on magnetorheological fluid, according to claim 1, is characterized in that: the input group further comprises an input end cover (3) connected with the input end shell (7) and a sealing ring (6) arranged between the input shaft (1) and the input end shell (7).
3. The cylindrical coupler with trapezoidal inner wall based on magnetorheological fluid, according to claim 1, is characterized in that: axial fixation is realized through two rings (8) in solenoid (22) both sides, and solenoid (22) outside sets up coil visor (9), and coil visor (9), ring (8) link to each other with input casing (7), output casing (15) through bolt II (10).
4. The cylindrical coupler with trapezoidal inner wall based on magnetorheological fluid, according to claim 1, is characterized in that: the output group also comprises an output end cover (17) connected with the output end shell (15) and an annular sealing ring (11) arranged between the output shaft (20) and the output end shell (15).
5. The cylindrical coupler with trapezoidal inner wall based on magnetorheological fluid, according to claim 2, is characterized in that: and a sealing felt (2) is arranged in the input end cover (3).
6. The cylindrical coupler with trapezoidal inner wall based on magnetorheological fluid, according to claim 4, is characterized in that: and a sealing felt (2) is arranged in the output end cover (17).
7. The cylindrical coupler with trapezoidal inner wall based on magnetorheological fluid, according to claim 1, is characterized in that: a spring (19) is arranged in an annular cavity at the innermost side of the output shaft (20), the cavity is filled with magnetorheological liquid (21), one side of the spring is fixedly connected to the side wall of the cavity, and the other side of the spring is in a free state.
8. The cylindrical coupler with trapezoidal inner wall based on magnetorheological fluid, according to claim 1, is characterized in that: the number of the grooves (23) is 8, and the grooves are uniformly distributed on the circular section at the tail end of the input shaft (1) in a circumferential mode.
9. The cylindrical coupler with trapezoidal inner wall based on magnetorheological fluid, according to claim 1, is characterized in that: the number of the trapezoidal protrusions (26) is 8, and the trapezoidal protrusions are evenly distributed on the tail end circular section of the output shaft (20) in a circumferential mode.
10. The cylindrical coupler with trapezoidal inner wall based on magnetorheological fluid, according to claim 1, is characterized in that: the output end shell (15) is connected with the input end shell (7) through a bolt (14), and a sealing block (13) is arranged at the joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811476759.1A CN109578460B (en) | 2018-12-05 | 2018-12-05 | Trapezoidal inner wall cylinder type coupler based on magnetorheological fluid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811476759.1A CN109578460B (en) | 2018-12-05 | 2018-12-05 | Trapezoidal inner wall cylinder type coupler based on magnetorheological fluid |
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| CN109578460A CN109578460A (en) | 2019-04-05 |
| CN109578460B true CN109578460B (en) | 2020-07-28 |
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| CN201811476759.1A Expired - Fee Related CN109578460B (en) | 2018-12-05 | 2018-12-05 | Trapezoidal inner wall cylinder type coupler based on magnetorheological fluid |
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| CN112240359B (en) * | 2019-07-19 | 2022-10-04 | 广东美的白色家电技术创新中心有限公司 | Clutch device and electrical equipment |
| CN112112907A (en) * | 2020-09-15 | 2020-12-22 | 严尔权 | Magnetic powder overheating separation mechanism of magnetic powder clutch |
| CN113202884B (en) * | 2021-05-21 | 2021-12-31 | 吉林大学 | Hydraulic control self-adjustment rectangular clutch based on magnetorheological fluid |
| CN114198425B (en) * | 2022-01-25 | 2023-05-16 | 江苏省特种设备安全监督检验研究院 | Double-shearing magneto-rheological clutch under permanent magnet excitation |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1434177A1 (en) * | 1986-10-30 | 1988-10-30 | Брянский Институт Транспортного Машиностроения | Electromagnetic powder-filled clutch |
| JPH10159876A (en) * | 1996-11-27 | 1998-06-16 | Aichi Mach Ind Co Ltd | Electromagnetic powder clutch |
| CN202510584U (en) * | 2012-04-06 | 2012-10-31 | 浙江师范大学 | Cylindrical magnetorheological fluid coupling |
| CN202690812U (en) * | 2012-04-28 | 2013-01-23 | 浙江师范大学 | Disc tooth embedded type magneto-rheological coupler |
| CN203836032U (en) * | 2014-03-24 | 2014-09-17 | 杭州电子科技大学 | High-efficient magneto-rheological braking device |
| CN104779753A (en) * | 2015-03-23 | 2015-07-15 | 中国矿业大学 | Coal mining machine motor torque axis overload protecting device based on magneto-rheological technology |
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