CN201329861Y - Brake device - Google Patents
Brake device Download PDFInfo
- Publication number
- CN201329861Y CN201329861Y CNU2009201362165U CN200920136216U CN201329861Y CN 201329861 Y CN201329861 Y CN 201329861Y CN U2009201362165 U CNU2009201362165 U CN U2009201362165U CN 200920136216 U CN200920136216 U CN 200920136216U CN 201329861 Y CN201329861 Y CN 201329861Y
- Authority
- CN
- China
- Prior art keywords
- turning
- wheel shaft
- brake
- brake gear
- airtight case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a brake device, including a wheel shaft connected to a vehicle chassis, characterized in that the wheel shaft is provided with a rotary body at a position nearby a hub running cavity and a enclosed cover around the rotary body peripheral, the enclosed cover is connected with the hub fixedly, a working gap for receiving current change liquid is arranged between the inner perisporium of the enclosed cover and the peripheral of the rotary body, the working gap is full of the current change liquid, and the rotary body and the external perisporium of the enclosed cover are connected with conductive electrodes separately. the device not only have a simple conformation and a convenient control, due to the current change liquid will generate a large area of current change effect, it is capable of generating a large brake moment, and the brake efficiency is high.
Description
Technical field
The utility model relates to a kind of brake gear.
Technical background
Existing most vehicle front-wheel all is to adopt plate disc brake, and many automobiles even four wheels are all used plate disc brake.As shown in Figure 1, the brake disc of plate disc brake is contained on the wheel hub, rotates with wheel and tire.When chaufeur carries out glancing impact, promote the brake shoe brake cheek (being sometimes referred to as the drag friction piece) of belt material sheet with the hydraulic coupling of master cylinder, brake shoe brake cheek compacting Moving plate allows it stop operating.Plate disc brake structure more complicated requires also higherly to brake clamp, pipeline system, and cost is higher.
Drum brake mechanism is a kind of relatively simple for structure, the drg that cost is relatively cheap.Drum brake mechanism once was used on whole wheel shafts of vehicle.As shown in Figure 2, the drum brake mechanism of automobile is made built-in pair of shoe plate formula.Glancing impact, the lip-deep friction force of shoe plate make shoe plate strengthen the pressure of brake wheel, and this shoe plate is called main shoe plate (leading shoe sheet, help the gesture shoe plate); The lip-deep friction force of shoe plate makes shoe plate weaken the pressure of brake wheel, and this shoe plate is called secondary shoe plate (trailing shoe sheet, trailing shoe sheet).At present, drum brake mechanism only is used as rear wheel brake on some automobile.As plate disc brake, when the driver carries out glancing impact, the fluid pressure that comes from master cylinder acts on the wheel cylinder, releases brake shoe brake cheek, lean on brake wheel, and stopping-down.Comparatively speaking, the brake efficiency of drum brake mechanism, thermal diffusivity and braking force stability are all relatively poor, and braking force alters a great deal on different road surfaces, are not easy to control.And, in braking procedure, can assemble a large amount of heats because heat dispersion is poor.Very complicated distortion easily takes place in slipper and wheel hub under temperatures involved, be easy to generate fading of brake and the phenomenon that flutters, and causes that brake efficiency descends.In addition, drum brake mechanism is wanted the space of regular adjustment brake shoe in use for some time, even will split out the brake powder of clearing up in being accumulated in to whole brake drum.
Summary of the invention
The purpose of this utility model provides a kind of brake gear, and this installs not only simple structure, and control is convenient, and because the area of current liquid generation electric rheological effect is big, the lock torque of generation is big, the brake efficiency height.
The utility model is achieved in that it comprises the wheel shaft that is connected the vehicle chassis below, it is characterized in that: described wheel shaft is provided with the peripheral airtight case of turning of turning and be enclosed near the position of wheel hub an actor's rendering of an operatic tune, described airtight case is captiveed joint with wheel hub, be provided with the working clearance that is used to hold current liquid between the internal perisporium of described airtight case and the periphery of turning, the described working clearance is filled with current liquid, and described turning is connected with conductive electrode respectively with the periphery wall of airtight case.
The utility model has the advantages that reasonable in design, simple structure, control is convenient, and since current liquid to produce the area of electric rheological effect big, the lock torque of generation is big, the brake efficiency height has bigger practical value and promotional value, its market outlook are considerable.
Description of drawings
Fig. 1 is the structure schematic views of existing plate disc brake.
Fig. 2 is the structure schematic views of existing drum brake mechanism.
Fig. 3 is the organigram of the utility model specific embodiment.
Fig. 4 is the local enlarged diagram of the C among Fig. 3.
The specific embodiment
Below, in conjunction with the accompanying drawings specific embodiment of the utility model is further elaborated.
As shown in drawings, this brake gear comprises the wheel shaft 7 that is connected the vehicle chassis below, it is characterized in that: described wheel shaft is provided with the peripheral airtight case 3 of turning of turning and be enclosed near the position of wheel hub 2 an actor's rendering of an operatic tune, described airtight case is captiveed joint with wheel hub, be provided with the working clearance that is used to hold current liquid between the internal perisporium of described airtight case and the periphery of turning, the described working clearance is filled with current liquid 11, and described turning is connected with conductive electrode respectively with the periphery wall of airtight case.
Above-mentioned turning is the positive pole of high-pressure side, realizes being electrically connected described enclosed hood shell joint ground, the negative earth of described DC high-voltage power supply with the positive pole of DC high-voltage power supply.
Above-mentioned turning is made of out cylinder 4 and inner cylinder 1 two parts that are socketed in the out cylinder, is provided with an insulating sleeve 6 between described out cylinder and the inner cylinder, and described out cylinder is captiveed joint through bolt assembly 5 with inner cylinder.
Above-mentioned wheel shaft medial extremity is arranged with a plastic insulation sleeve 8, described plastic insulation sleeve periphery also is arranged with a copper sheathing 9, described copper sheathing is connected with the positive electrical of DC high-voltage power supply through a carbon brush, described copper sheathing is connected with a high pressure resistant electric wire 10, and the hole that groove that described high pressure resistant electric wire is provided with through wheel shaft and inner cylinder are provided with is connected with the internal perisporium of out cylinder.
Above-mentioned turning captiveed joint with wheel shaft through spline.
Principle of the present utility model is such: when energized, retrogradation develops to solid from liquid the viscosity of current liquid with the external electric field increase, and when electric field was enough big, whole diagram of system revealed the feature of similar solid.Because out cylinder is to captive joint with rotating shaft, and airtight case is to captive joint with wheel hub, the relative vehicle chassis of rotating shaft is static, and the relative vehicle chassis of wheel hub is a high speed revolution, when the current liquid retrogradation and from liquid when solid develops, make turn and airtight case between friction force increasing, thereby the rotating speed of wheel hub is slowly reduced, to reach the purpose of drag.
When removing extra electric field, current liquid returns to original liquid state again by solid-state again.This moment turn and airtight case between friction force slowly reduce, thereby make the rotating speed of wheel hub unaffected.
The utility model is reasonable in design, simple structure, and control is convenient, and because the area of current liquid generation electric rheological effect is big, and the lock torque of generation is big, and the brake efficiency height has bigger practical value and promotional value, its market outlook are considerable.
Claims (5)
1. brake gear, comprise the wheel shaft that is connected the vehicle chassis below, it is characterized in that: described wheel shaft is provided with the peripheral airtight case of turning of turning and be enclosed near the position of wheel hub an actor's rendering of an operatic tune, described airtight case is captiveed joint with wheel hub, be provided with the working clearance that is used to hold current liquid between the internal perisporium of described airtight case and the periphery of turning, the described working clearance is filled with current liquid, and described turning is connected with conductive electrode respectively with the periphery wall of airtight case.
2. brake gear according to claim 1 is characterized in that: described turning is the positive pole of high-pressure side, realizes being electrically connected described enclosed hood shell joint ground, the negative earth of described DC high-voltage power supply with the positive pole of DC high-voltage power supply.
3. brake gear according to claim 1 and 2, it is characterized in that: described turning is made of out cylinder and the inner cylinder two parts that are socketed in the out cylinder, be provided with an insulating sleeve between described out cylinder and the inner cylinder, described out cylinder is captiveed joint through bolt assembly with inner cylinder.
4. brake gear according to claim 1 and 2, it is characterized in that: described wheel shaft medial extremity is arranged with a plastic insulation sleeve, described plastic insulation sleeve periphery also is arranged with a copper sheathing, described copper sheathing is connected with the positive electrical of DC high-voltage power supply through a carbon brush, described copper sheathing is connected with a high pressure resistant electric wire, and the hole that groove that described high pressure resistant electric wire is provided with through wheel shaft and inner cylinder are provided with is connected with the internal perisporium of out cylinder.
5. brake gear according to claim 1 and 2 is characterized in that: described turning captiveed joint with wheel shaft through spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201362165U CN201329861Y (en) | 2009-01-06 | 2009-01-06 | Brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201362165U CN201329861Y (en) | 2009-01-06 | 2009-01-06 | Brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201329861Y true CN201329861Y (en) | 2009-10-21 |
Family
ID=41223236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201362165U Expired - Fee Related CN201329861Y (en) | 2009-01-06 | 2009-01-06 | Brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201329861Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235241A (en) * | 2014-09-02 | 2014-12-24 | 贾海亮 | Novel drum brake |
| CN110422150A (en) * | 2019-08-12 | 2019-11-08 | 郑州拓华仪器有限公司 | A kind of portable vehicle escape machine |
| CN112031768A (en) * | 2020-09-16 | 2020-12-04 | 刘奂玮 | Novel high-wear-resistance heading machine cutting tooth device |
-
2009
- 2009-01-06 CN CNU2009201362165U patent/CN201329861Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235241A (en) * | 2014-09-02 | 2014-12-24 | 贾海亮 | Novel drum brake |
| CN110422150A (en) * | 2019-08-12 | 2019-11-08 | 郑州拓华仪器有限公司 | A kind of portable vehicle escape machine |
| CN112031768A (en) * | 2020-09-16 | 2020-12-04 | 刘奂玮 | Novel high-wear-resistance heading machine cutting tooth device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20130106 |