CN202203326U

CN202203326U - Single outlet rod magnetic rheological damping device

Info

Publication number: CN202203326U
Application number: CN201120322900XU
Authority: CN
Inventors: 谭和平; 谢宁; 刘强; 谭晓婧
Original assignee: 谢宁
Priority date: 2011-08-31
Filing date: 2011-08-31
Publication date: 2012-04-25
Anticipated expiration: 2021-08-31

Abstract

The utility model discloses a single outlet rod magnetic rheological damping device, which comprises an external electromagnet, a built-in electromagnet, a piston rod, a support frame, an annular piston, a work cylinder and an annular compensation air bag, wherein the work cylinder of the damping device is in a double-layer cylinder structure, both ends of the outer layer cylinder of the work cylinder are sealed through a left end cover and a right end cover, one end of the inner layer cylinder is sealed, the other end of the inner layer cylinder is connected onto the right end cover, the built-in electromagnet is fixed inside the inner layer cylinder, magnetic rheological liquid is filled in a cavity between the inner layer cylinder and the outer layer cylinder of the work cylinder, the annular piston is arranged between the inner layer cylinder and the outer layer cylinder of the work cylinder, the annular compensation air bag is arranged on the right end cover arranged between the inner layer cylinder and the outer layer cylinder, one end of the piston rod is fixed with the support frame, the other end of the support frame is fixed with the annular piston, the other end of the piston rod extends out from the left end of the work cylinder through a sealing device arranged at the left end of the work cylinder and a bearing, and the external electromagnet is fixed on the outer circumference wall of the work cylinder.

Description

A kind of single outstretch pole magnetorheological damper

Technical field

The utility model belongs to a kind of MR damper, is specifically related to a kind of single outstretch pole magnetorheological damper.

Background technique

MR damper is as a kind of intelligent vibration damping device; The size of its damping force can be carried out remote stepless through the control power supply and regulated; Size of its output damping force is not only relevant, but also relevant with the effective work area between clutch release slave cylinder and the piston with the size of control electric current, because of the piston of existing single outstretch pole magnetorheological damper is the cylinder bodily form; And clutch release slave cylinder is a cylindrical shape; Effective work area between piston and the clutch release slave cylinder is less, and therefore, the damping force of existing single outstretch pole magnetorheological damper output is less; And a kind of single outstretch pole magnetorheological damper of the utility model has been because of having adopted the clutch release slave cylinder of ring-like piston and double-layered cylinder structure, effective work area between clutch release slave cylinder and the piston increased greatly and the damping force exported is bigger.

Summary of the invention

The less deficiency of damping force to common single outstretch pole magnetorheological damper produces the utility model provides a kind of novel MR damper, that is: a kind of single outstretch pole magnetorheological damper.

The technological scheme of the utility model is following:

A kind of single outstretch pole magnetorheological damper, it comprises: external electromagnet, in-built electrical magnet, piston rod, support, annular piston, clutch release slave cylinder and annular compensation air bag; Clutch release slave cylinder wherein is the double-layered cylinder structure, and the two ends of the outer cylinder of clutch release slave cylinder are through the sealing of left and right sides end cap, and are porose at the center of left end cap; The internal diameter in hole is equipped with seal arrangement and bearing greater than the external diameter of piston rod in the hole, porose at the center of right end cap; The internal diameter in hole allows that the lighting outlet of in-built electrical magnet passes through; The external diameter of the inner layer cylinder of clutch release slave cylinder is less than the internal diameter of outer cylinder, and the length of inner layer cylinder is less than the length of outer cylinder, and an end of inner layer cylinder seals; The other end of inner layer cylinder is connected on the right end cap; Inner layer cylinder is coaxial with outer cylinder, and the built-in electromagnetic ferropexy is in the inside of inner layer cylinder, in the inner layer cylinder of clutch release slave cylinder and the cavity between the outer cylinder, has been full of magnetic flow liquid; The external diameter of ring-like piston is less than the internal diameter of the outer cylinder of clutch release slave cylinder and leave the magnetic flow liquid gap of flowing; The internal diameter of ring-like piston is greater than the external diameter of clutch release slave cylinder inner layer cylinder and leave the magnetic flow liquid gap of flowing, and annular piston is installed between the internal and external layer cylinder of clutch release slave cylinder; The internal diameter of annular compensation air bag is greater than the external diameter of clutch release slave cylinder inner layer cylinder, and annular compensation air bag external diameter is less than the internal diameter of the outer cylinder of clutch release slave cylinder, and annular compensation air bag places on the right end cap between the internal and external layer cylinder; One end and the support of piston rod are fixed, and the other end of support and ring-like piston are fixed, and the other end of piston rod stretches out through the left end of the center hole on the clutch release slave cylinder left end cap from clutch release slave cylinder; External electromagnet is fixed on the outer circle wall of clutch release slave cylinder; Clutch release slave cylinder is made up of magnetic conductive metal material not, and annular piston is made up of high magnetic conductive metal material.

Owing to taked technique scheme; Make between a kind of external diameter of internal diameter and annular piston internal diameter and clutch release slave cylinder inner layer cylinder of the outer cylinder of annular piston external diameter and clutch release slave cylinder of single outstretch pole magnetorheological damper and formed two annular working gap; Be input to the size of the electric current in external electromagnet and the in-built electrical magnet through adjustment; Can make the magnitude of field intensity in these two annular spaces different; The viscosity that is in the magnetic flow liquid in the annular space is changed, thereby the damping force size that makes piston rod promote to receive when annular piston moves in clutch release slave cylinder change, and makes a kind of damping force of single outstretch pole magnetorheological damper output controlled; And piston rod gets into the volume-variation in the clutch release slave cylinder that causes in the clutch release slave cylinder, will compensate through the compensation of the annular in internal and external layer cylinder air bag.Therefore; Compare with common single outstretch pole magnetorheological damper; Because of between the clutch release slave cylinder of a kind of single outstretch pole magnetorheological damper of the utility model and the annular piston there being two working clearances, therefore, a kind of effective work area of single outstretch pole magnetorheological damper is big and damping force output is bigger; And the damping force of its generation is also bigger, and a kind of Applicable scope of single outstretch pole magnetorheological damper is increased.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

Fig. 2 is the A-A sectional view among Fig. 1.

Fig. 3 is the B-B sectional view among Fig. 1.

Fig. 4 is the C-C sectional view among Fig. 1.

Embodiment

Specify the structure of the utility model below in conjunction with accompanying drawing:

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4; This is a kind of concrete structure of the utility model; A kind of single outstretch pole magnetorheological damper, it comprises: external electromagnet 6, in-built electrical magnet 13, piston rod 1, U type support 4, annular piston 7, clutch release slave cylinder 5 and be filled with the annular compensation air bag 10 of pressurized air 11; The clutch release slave cylinder 5 that is made up of magnetic conductive metal material not is the double-layered cylinder structure; The two ends of the outer cylinder 22 of clutch release slave cylinder 5 are through left end cap 18 and right end cap 12 sealings, and porose 21 at the center of left end cap 18, the internal diameter in hole 21 is greater than the external diameter of piston rod 1; Seal arrangement 3 and bearing 2 are installed in hole 21; Porose 14 at the center of right end cap 12, the internal diameter in hole 14 allows that the lighting outlet 16 of in-built electrical magnet 13 passes through, and the external diameter of the inner layer cylinder 19 of clutch release slave cylinder 5 is less than the internal diameter of outer cylinder 22; The length of inner layer cylinder 19 is less than the length of outer cylinder 22; The sealing of one end of inner layer cylinder 19, the other end of inner layer cylinder 19 is connected on the right end cap 12, and inner layer cylinder 19 is coaxial with outer cylinder 22; In-built electrical magnet 13 is fixed on the inside of inner layer cylinder 19, in the inner layer cylinder 19 of clutch release slave cylinder 5 and the cavity between the outer cylinder 22, has been full of magnetic flow liquid 20; The external diameter of the ring-like piston 7 that is made up of high magnetic conductive metal material is less than the internal diameter of clutch release slave cylinder 5 outer cylinders 22 and leave the magnetic flow liquid gap 8 of flowing; The internal diameter of ring-like piston 7 is greater than the external diameter of clutch release slave cylinder 5 inner layer cylinders 19 and leave the magnetic flow liquid gap 9 of flowing, and annular piston 7 is installed between the inner layer cylinder 19 and outer cylinder 22 of clutch release slave cylinder 5; The internal diameter of annular compensation air bag 10 is greater than the external diameter of clutch release slave cylinder 5 inner layer cylinders 19, and annular compensation air bag 10 external diameters are less than the internal diameter of clutch release slave cylinder 5 outer cylinders 22, and annular compensation air bag 10 places on the right end cap 12 between inner layer cylinder 19 and the outer cylinder 22; One end of piston rod 1 and U type support 4 are fixing, and the other end of U type support 4 and ring-like piston 7 are fixing, and the other end of piston rod 1 stretches out with the left end of bearing 2 from clutch release slave cylinder 5 through center hole 21 on clutch release slave cylinder 5 left end caps and seal arrangement 3; External electromagnet 6 is fixed on the outer circle wall of clutch release slave cylinder 5; In-built electrical magnet 13 is connected with control power supply 17 through lighting outlet 15 through lighting outlet 16 and external electromagnet 6.

A kind of single outstretch pole magnetorheological fat damper working condition is such: when control power supply 17 not during output current; External electromagnet 6 does not generate an electromagnetic field with in-built electrical magnet 13; When piston rod 1 passes in and out clutch release slave cylinders 5 through the ring-like piston 7 of U type support 4 drives; Gap 8 between the external diameter of the internal diameter of the external diameter of ring-like piston 7 and clutch release slave cylinder 5 outer cylinders 22 and the internal diameter of ring-like piston 7 and clutch release slave cylinder 5 inner layer cylinders 19 is zero with the magnetic intensity in the gap 9; The gap 8 between the external diameter of the internal diameter of the external diameter of ring-like piston 7 and clutch release slave cylinder 5 outer cylinders 22 and the internal diameter of ring-like piston 7 and clutch release slave cylinder 5 inner layer cylinders 19 and the viscosity of the magnetic flow liquid 20 in the gap 9 are minimum, make a kind of damping force of single outstretch pole magnetorheological fat damper output less;

When the control power supply is exported bigger electric current; There is big electric current to pass through in external electromagnet 6 and the in-built electrical magnet 13; External electromagnet 6 produces bigger electromagnetic field with in-built electrical magnet 13; Make the gap 8 between the external diameter of internal diameter and clutch release slave cylinder 5 inner layer cylinders 19 of internal diameter and ring-like piston 7 of external diameter and clutch release slave cylinder 5 outer cylinders 22 of ring-like piston 7 bigger with magnetic intensity in the gap 9; Make the viscosity of the magnetic flow liquid 20 in gap 8 and the gap 9 between the external diameter of internal diameter and clutch release slave cylinder 5 inner layer cylinders 19 of internal diameter and ring-like piston 7 of external diameter and clutch release slave cylinder 5 outer cylinders 22 of type piston 7 bigger, make a kind of damping force of single outstretch pole magnetorheological fat damper output bigger, therefore; Through the size of adjustment control power supply 17 output currents, can make a kind of damping force of single outstretch pole magnetorheological fat damper output controlled.

Claims

1. single outstretch pole magnetorheological damper, it comprises: external electromagnet, in-built electrical magnet, piston rod, support, annular piston, clutch release slave cylinder and annular compensation air bag, it is characterized in that: said clutch release slave cylinder is the double-layered cylinder structure; The two ends of the outer cylinder of clutch release slave cylinder are through the sealing of left and right sides end cap, and porose at the center of left end cap, the internal diameter in hole is greater than the external diameter of piston rod; Seal arrangement and bearing are installed in the hole; Center at right end cap is porose, and the internal diameter in hole allows that the lighting outlet of in-built electrical magnet passes through, and the external diameter of the inner layer cylinder of clutch release slave cylinder is less than the internal diameter of outer cylinder; The length of inner layer cylinder is less than the length of outer cylinder; The one end sealing of inner layer cylinder, the other end of inner layer cylinder is connected on the right end cap, and inner layer cylinder is coaxial with outer cylinder; Said built-in electromagnetic ferropexy is in the inside of inner layer cylinder, in the inner layer cylinder of clutch release slave cylinder and the cavity between the outer cylinder, has been full of magnetic flow liquid;

The external diameter of said ring-like piston is less than the internal diameter of the outer cylinder of clutch release slave cylinder and leave the magnetic flow liquid gap of flowing; The internal diameter of ring-like piston is greater than the external diameter of clutch release slave cylinder inner layer cylinder and leave the magnetic flow liquid gap of flowing, and annular piston is installed between the internal and external layer cylinder of clutch release slave cylinder;

The internal diameter of said annular compensation air bag is greater than the external diameter of clutch release slave cylinder inner layer cylinder, and annular compensation air bag external diameter is less than the internal diameter of the outer cylinder of clutch release slave cylinder, and annular compensation air bag places on the right end cap between the internal and external layer cylinder; One end and the support of said piston rod are fixed, and the other end of support and ring-like piston are fixed, and the other end of piston rod stretches out through the left end of the center hole on the clutch release slave cylinder left end cap from clutch release slave cylinder; Said external electromagnet is fixed on the outer circle wall of clutch release slave cylinder; Said clutch release slave cylinder is made up of magnetic conductive metal material not, and annular piston is made up of high magnetic conductive metal material.