CN211117277U - Disc brake based on magnetostrictive material - Google Patents
Disc brake based on magnetostrictive material Download PDFInfo
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- CN211117277U CN211117277U CN201921782657.2U CN201921782657U CN211117277U CN 211117277 U CN211117277 U CN 211117277U CN 201921782657 U CN201921782657 U CN 201921782657U CN 211117277 U CN211117277 U CN 211117277U
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- 239000000463 material Substances 0.000 title claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims abstract description 9
- 238000002955 isolation Methods 0.000 claims description 16
- 230000005284 excitation Effects 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 6
- 210000000080 chela (arthropods) Anatomy 0.000 abstract 2
- 239000010720 hydraulic oil Substances 0.000 abstract 1
- 239000011553 magnetic fluid Substances 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a disc brake based on magnetostrictive material, include: the brake assembly, the left brake driver, the right brake driver and the force and displacement transmission module; the disc brake adopts a magnetostrictive material which can be subjected to telescopic deformation under the influence of a magnetic field and generate enough thrust. The utility model discloses it replaces original hydraulic pump structure for the disc brake in, adopts two hysteresis flexible drivers to drive two brake pistons of deciding pincers disc brake respectively as the stopper driver, when keeping the disc brake advantage, has reduced the volume of deciding pincers disc brake, makes it to use on the car. In addition, the brake cancels a hydraulic oil circuit, simplifies the system structure and saves the cost.
Description
Technical Field
The utility model belongs to the technical field of automobile mechanical braking, specifically indicate a disc brake based on magnetostrictive material.
Background
The rotating element in the friction pair of the disc brake is a metal disc which works on the end face and is called a brake disc; the friction elements grip the brake disc from both sides to produce braking. The fixing elements have various structural forms, and can generally divide the disc brake into a caliper disc type and a full disc type.
The existing disc brakes on the market are mainly hydraulic type and are controlled by hydraulic pressure, and the main parts comprise a brake disc, a wheel cylinder, a brake caliper, an oil pipe, a brake block and the like. The disc brake has the advantages of fast heat dissipation, light weight, simple structure and convenient adjustment. Particularly, the high-temperature resistant performance is good under high load, the braking effect is stable, the muddy water invasion is not afraid, and the vehicle can run in winter and under bad road conditions.
Much work has been done on disc brakes at the present time. For example, the disk brake with the magnetostrictive force application function, which is provided by the Chinese invention patent application number of 201410785712.9 and is named as a disk brake with the giant magnetostrictive force application function and a method thereof, has the characteristics of simple and reliable structure, good compatibility with the existing brake system and no influence on the normal work of ABS (anti-lock brake system) and is provided by utilizing the magnetostrictive phenomenon of magnetostrictive materials; the driving safety can be improved while the braking distance in emergency braking is reduced; the Chinese invention patent application number is 201610902190.5, named as a hydraulic self-energizing disc brake, and provides a hydraulic self-energizing disc brake which is provided with a set of energizing device on the basis of the existing floating caliper disc brake, realizes the bidirectional energizing effect in the braking process of an automobile and improves the braking efficiency; the Chinese invention patent application number is 201811214157.9, which is named as a magnetic fluid disc brake, provides a disc brake different from the traditional braking mode by using an intelligent material magnetic fluid, and combines hydraulic braking and magnetic fluid regulation braking to realize a multi-stage braking mode.
In view of the above research on disc brakes, although disc brakes have considerable advantages, the problems of high cost, complicated brake structure, complicated hydraulic system arrangement, hydraulic hysteresis, etc. are still not solved.
The magnetostrictive material is a novel intelligent material which can be expanded and contracted along the magnetization direction when magnetized in a magnetic field and generates great thrust when the magnetostrictive strain is generated. If an energized coil is used as the magnetic field source, the change in the dimensions of the magnetostrictive material can be controlled when the current through the coil is varied or the distance from the magnet is varied. The magnetic field sensing and driving circuit has the advantages of fast response time under the control of a magnetic field, good frequency characteristic, high energy density, large coupling coefficient and sensing and driving functions, so the magnetic field sensing and driving circuit has wide application prospect in many fields.
Disclosure of Invention
An object of the utility model is to the not enough of above-mentioned prior art, the utility model aims at providing a disc brake based on magnetostrictive material to solve disc brake cost that exists among the prior art higher, the stopper structure is complicated, hydraulic system arranges complicated and hydraulic pressure hysteresis scheduling problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses a disc brake based on magnetostrictive material, include: the brake assembly, the left brake driver, the right brake driver and the force and displacement transmission module;
the brake assembly includes: the brake caliper comprises a brake caliper body, a guide pin, a left brake block back plate, a left brake block, a left piston, a right piston, a rubber ring, a right brake block back plate and a brake disc;
the brake caliper body is fixed on a steering knuckle of a front axle of the automobile, and a left brake driver and a right brake driver are installed on the brake caliper body;
the brake disc is fixed on a hub of the automobile and extends into a space between the left brake block and the right brake block;
the left brake block back plate and the right brake block back plate are respectively connected with the left piston and the right piston, are suspended on the guide pins and can move along the guide pins; the left brake block and the right brake block are respectively fixed on a left brake block back plate and a right brake block back plate;
rubber rings are respectively embedded in the annular grooves with the trapezoidal sections on the inner walls of the holes of the left piston and the right piston, and the rubber rings are used for returning the brake when braking is finished;
the left and right brake actuators each include: the device comprises a driver shell, a giant magnetostrictive rod, an excitation coil, a demagnetizing coil, a magnetic isolation liner and a magnetic isolation top cover;
the input end of the giant magnetostrictive rod is fixed at the bottom end inside the driver shell;
the excitation coil and the demagnetizing coil are wound on the giant magnetostrictive rod;
the magnetic isolation gasket is tightly attached to the inner side of the driver shell; the magnetic isolation top cover is rotatably arranged at the top ends of the left brake driver and the right brake driver and isolates the influence of a magnetic field on the outside together with the magnetic isolation liner;
the force and displacement transmission module is used for transmitting force and displacement output by the left brake driver and the right brake driver, and comprises: the giant magnetostrictive rod, the transmission rod, the piston push rod and the support pin;
the supporting pins are fixed on two sides of the brake caliper body;
the middle part of the transmission rod is hinged on the supporting pin, the lower end of the transmission rod is hinged with the input end of the piston push rod, and the upper end of the transmission rod is hinged with the output end of the giant magnetostrictive rod;
the output end of the piston push rod is fixedly connected with the piston.
Furthermore, the left side and the right side of the brake caliper body are respectively provided with a sliding groove for installing the left brake driver and the right brake driver.
Further, the left brake driver and the right brake driver are fixed on the brake caliper body through fixing screws.
Further, the brake further includes: and the adjusting shim is matched with the fixing screw for use and is used for adjusting the positions of the left brake driver and the right brake driver.
Further, the section of the giant magnetostrictive rod is circular, the length of the rod is more than 5cm, and the diameter of the rod is more than 10 mm.
Further, the material used by the giant magnetostrictive rod is a giant magnetostrictive material with a magnetostrictive coefficient not less than 2000 ppm.
Further, the cross-section of the drive housing is ⊥ -shaped.
Furthermore, the two brake drivers are identical in internal arrangement structure and symmetrically installed at the front and rear positions of the upper part of the brake caliper body.
Furthermore, the number of the conducting wires used by the exciting coils in the two brake drivers is one, the arrangement of the conducting wires in the exciting coils is completely consistent, and the directions of the currents of the two exciting coils relative to the brake drivers are consistent after the currents are introduced.
Furthermore, the number of the wires used by the demagnetizing coils in the two brake actuators is one, the arrangement of the wires in the demagnetizing coils is completely consistent, and the directions of the currents of the two demagnetizing coils relative to the brake actuators are consistent after the currents are introduced.
The utility model has the advantages that:
the utility model discloses compare with current disc brake, adopt control circular telegram coil current to control the magnetostrictive deformation, realize the brake drive, regard the electric current as the signal transmission medium for automobile braking system electric realizes more easily.
The utility model discloses owing to cancelled the hydraulic pressure oil circuit for when the disc brake of design has kept traditional disc brake advantage, the structure of braking system and stopper has been simplified greatly.
The utility model discloses a brake actuator's core is the magnetostrictive material, and the high response rate that consequently its itself has also inherited the braking wherein, has improved the response rate of stopper greatly.
Drawings
Fig. 1 is a front view of a disc brake based on magnetostrictive material according to the present invention;
fig. 2 is a top view of the disc brake based on magnetostrictive material according to the present invention;
FIG. 3 is a side view of the magnetostrictive material based disc brake of the present invention;
fig. 4 is a schematic sectional view of the driver a-a of the present invention;
fig. 5 is a schematic structural view of the floating caliper disc brake of the present invention;
in the figure, 1-brake caliper body, 2-guide pin, 3-left brake block back plate, 4-left brake block, 5-left piston, 6-rubber ring, 7-support pin, 8-right brake block, 9-right brake block back plate, 10-brake disc, 11-right piston, 12-driver shell, 13-magnetic isolation gasket, 14-super magnetic induction telescopic rod, 15-magnetic isolation top cover, 16-transmission rod, 17-piston push rod, 18-adjusting gasket, 19-left brake driver, 20-fixing screw, 21-excitation coil, 22-degaussing coil, 23-right brake driver and 24-chute.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
Referring to fig. 1 to 4, the present invention provides a disc brake based on magnetostrictive material, including: the brake assembly, the left brake driver 19, the right brake driver 23 and the force and displacement transmission module;
the brake assembly includes: the brake caliper comprises a caliper body 1, a guide pin 2, a left brake block back plate 3, a left brake block 4, a left piston 5, a right piston 11, a rubber ring 6, a right brake block 8, a right brake block back plate 9 and a brake disc 10;
the brake caliper body 1 is fixed on a steering knuckle of a front axle of an automobile, and a left brake driver 19 and a right brake driver 23 are installed on the brake caliper body;
the brake disc 10 is fixed on the hub of the automobile and extends into the space between the left brake block 4 and the right brake block 8;
the left brake block back plate 3 and the right brake block back plate 9 are respectively connected with the left piston 5 and the right piston 11, are suspended on the guide pin 2 and can move along the guide pin 2; the left brake block 4 and the right brake block 8 are respectively fixed on the left brake block back plate 3 and the right brake block back plate 9;
the left brake actuator 19 and the right brake actuator 23 each include: the magnetic isolation device comprises a driver shell 12, a super magnetostrictive rod 14, an excitation coil 21, a demagnetizing coil 22, a magnetic isolation liner 13 and a magnetic isolation top cover 15;
the input end of the giant magnetostrictive rod 14 is fixed at the bottom end inside the driver shell 12;
the excitation coil 21 and the demagnetizing coil 22 are wound on the giant magnetostrictive rod 14;
the magnetic isolation gasket 13 is tightly attached to the inner side of the driver shell 12; the magnetic isolation top cover 15 is rotatably arranged at the top ends of the left brake driver 19 and the right brake driver 23, and isolates the influence of a magnetic field on the outside together with the magnetic isolation liner 13;
the force and displacement transmission module is used for transmitting the force and displacement output by the left brake actuator 19 and the right brake actuator 23, and comprises: the giant magnetostrictive rod 14, the transmission rod 16, the piston push rod 17 and the supporting pin 7;
the supporting pins 7 are fixed on two sides of the brake caliper body 1;
the middle part of the transmission rod 16 is hinged on the supporting pin 7, the lower end of the transmission rod is hinged with the input end of the piston push rod 17, and the upper end of the transmission rod 16 is hinged with the output end of the giant magnetostrictive rod 14;
the output end of the piston push rod 17 is fixedly connected with the piston.
The left side and the right side of the brake caliper body 1 are respectively provided with a sliding groove 24 for mounting the left brake driver 19 and the right brake driver 23.
The left brake driver 19 and the right brake driver 23 are fixed on the caliper body 1 through fixing screws 20.
The brake further includes: an adjustment shim 18, which is used in conjunction with set screw 20, is used to adjust the position of left brake actuator 19 and right brake actuator 23.
The section of the giant magnetostrictive rod 14 is circular, the length of the rod is more than 5cm, and the diameter of the rod is more than 10 mm.
The material used for the giant magnetostrictive rod 14 is a giant magnetostrictive material with a magnetostrictive coefficient not less than 2000 ppm.
The cross-section of the drive housing 12 is ⊥ -shaped.
The two brake drivers are consistent in internal arrangement structure and symmetrically arranged at the front and rear parts of the upper part of the brake caliper body.
The number of the conducting wires used by the exciting coils 21 in the two brake drivers is one, the conducting wires in the exciting coils are completely arranged in the same way, and the directions of the currents of the two exciting coils relative to the brake drivers are the same after the currents are introduced.
The number of the wires used for the demagnetizing coils 22 in the two brake actuators is one, the arrangement of the wires in the demagnetizing coils is completely consistent, and the directions of the currents of the two demagnetizing coils relative to the brake actuators are consistent after the currents are introduced.
As shown in fig. 5, the present invention can be applied to a floating caliper disc brake in addition to a fixed caliper disc brake.
The utility model discloses the concrete application way is many, and the above-mentioned only is the preferred embodiment of the utility model, should point out, to ordinary skilled person in this technical field, under the prerequisite that does not deviate from the utility model discloses the principle, can also make a plurality of improvements, and these improvements also should be regarded as the utility model discloses a scope of protection.
Claims (9)
1. A disc brake based on magnetostrictive material, characterized in that it comprises: the brake assembly, the left brake driver, the right brake driver and the force and displacement transmission module;
the brake assembly includes: the brake caliper comprises a brake caliper body, a guide pin, a left brake block back plate, a left brake block, a left piston, a right piston, a rubber ring, a right brake block back plate and a brake disc;
the brake caliper body is fixed on a steering knuckle of a front axle of the automobile, and a left brake driver and a right brake driver are installed on the brake caliper body;
the brake disc is fixed on a hub of the automobile and extends into a space between the left brake block and the right brake block;
the left brake block back plate and the right brake block back plate are respectively connected with the left piston and the right piston, are suspended on the guide pins and can move along the guide pins; the left brake block and the right brake block are respectively fixed on a left brake block back plate and a right brake block back plate;
rubber rings are respectively embedded in the ring grooves with the trapezoidal sections on the inner walls of the holes of the left piston and the right piston;
the left and right brake actuators each include: the device comprises a driver shell, a giant magnetostrictive rod, an excitation coil, a demagnetizing coil, a magnetic isolation liner and a magnetic isolation top cover;
the input end of the giant magnetostrictive rod is fixed at the bottom end inside the driver shell;
the excitation coil and the demagnetizing coil are wound on the giant magnetostrictive rod;
the magnetic isolation gasket is tightly attached to the inner side of the driver shell; the magnetism isolating top cover is rotatably arranged at the top ends of the left brake driver and the right brake driver;
the force and displacement transfer module comprises: the giant magnetostrictive rod, the transmission rod, the piston push rod and the support pin;
the supporting pins are fixed on two sides of the brake caliper body;
the middle part of the transmission rod is hinged on the supporting pin, the lower end of the transmission rod is hinged with the input end of the piston push rod, and the upper end of the transmission rod is hinged with the output end of the giant magnetostrictive rod;
the output end of the piston push rod is fixedly connected with the piston.
2. The disc brake based on magnetostrictive materials according to claim 1, characterized in that the left and right sides of the caliper body are respectively provided with a sliding groove for mounting the left and right brake actuators.
3. The magnetostrictive material-based disc brake according to claim 1, characterized in that the left and right brake actuators are fixed to the caliper body by means of fixing screws.
4. The magnetostrictive material-based disc brake according to claim 3, characterized in that the brake further comprises: and the adjusting shim is matched with the fixing screw for use and is used for adjusting the positions of the left brake driver and the right brake driver.
5. The disc brake based on magnetostrictive materials according to claim 1, characterized in that the number of the conducting wires used for the exciting coils in the two brake actuators is one, the arrangement of the conducting wires in the exciting coils is identical, and the direction of the currents of the two exciting coils relative to the brake actuators is identical after the currents are supplied.
6. The disc brake based on magnetostrictive materials according to claim 1, characterized in that the number of the wires used for the degaussing coils in the two brake actuators is one, the arrangement of the wires in the degaussing coils is identical, and the direction of the current of the degaussing coils relative to the brake actuators is identical after the current is applied.
7. The disc brake based on magnetostrictive material according to claim 1, characterized in that the rod is circular in cross-section and has a length greater than 5cm and a diameter greater than 10 mm.
8. The disc brake based on magnetostrictive materials according to claim 1, characterized in that the material used for the giant magnetostrictive rod is a giant magnetostrictive material with a coefficient of magnetostriction not less than 2000 ppm.
9. The magnetostrictive material-based disc brake according to claim 1, characterized in that the driver housing is ⊥ -shaped in cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921782657.2U CN211117277U (en) | 2019-10-23 | 2019-10-23 | Disc brake based on magnetostrictive material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921782657.2U CN211117277U (en) | 2019-10-23 | 2019-10-23 | Disc brake based on magnetostrictive material |
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| Publication Number | Publication Date |
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| CN211117277U true CN211117277U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921782657.2U Active CN211117277U (en) | 2019-10-23 | 2019-10-23 | Disc brake based on magnetostrictive material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799366A (en) * | 2018-08-29 | 2018-11-13 | 莱州虎威机械科技有限公司 | A kind of braking clamp |
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2019
- 2019-10-23 CN CN201921782657.2U patent/CN211117277U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799366A (en) * | 2018-08-29 | 2018-11-13 | 莱州虎威机械科技有限公司 | A kind of braking clamp |
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