CN102635650A - Spring braking hydraulic release type safety brake - Google Patents
Spring braking hydraulic release type safety brake Download PDFInfo
- Publication number
- CN102635650A CN102635650A CN2012101249811A CN201210124981A CN102635650A CN 102635650 A CN102635650 A CN 102635650A CN 2012101249811 A CN2012101249811 A CN 2012101249811A CN 201210124981 A CN201210124981 A CN 201210124981A CN 102635650 A CN102635650 A CN 102635650A
- Authority
- CN
- China
- Prior art keywords
- spring
- braking hydraulic
- hydraulic pressure
- left shell
- pressure release
- 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.)
- Pending
Links
Images
Landscapes
- Braking Arrangements (AREA)
Abstract
The invention discloses a spring braking hydraulic release type safety brake which comprises a left shell, a middle shell, a thrust disc, a right end cover and a friction plate, wherein the shell, the middle shell and the right end cover are sequentially connected; a shell groove is arranged at the side of the left shell connected with the middle shell; the middle shell is provided with a shell bulge; the diameter of the shell groove is larger than that of the shell bulge; the thrust disc is arranged between the shell groove of the left shell and the shell bulge of the middle shell; a piston groove is formed by the enclosing of the left shell, the middle shell and the thrust disc together; the piston groove is internally provided with a piston; the thrust disc and the left shell are respectively provided with a spring groove, and the two spring grooves correspond to each other, and are respectively and internally provided with a spring; a friction plate is arranged at the inner side of the middle shell; and one end of the friction plate is contacted with the thrust disc, and the other end of the friction plate is contacted with the right end cover. The spring braking hydraulic release type safety brake overcomes the defects that similar brakes can not be released when the thrust discs are blocked, and are high in manufacturing cost.
Description
Technical field
The present invention relates to the braking technology field, be specifically related to a kind of spring braking hydraulic pressure release type safety type break.
Background technique
Because off highway vehicle; Especially underground haulage vehicle frequently faces long apart from the large slope road conditions; How to guarantee that it is a great problem that special vehicle design in present down-hole faces that vehicle occurs when on this road conditions, working that any fault can reliably realize braking; Present domestic vehicle mainly is an emergency braking to be set solve the safety brake problem of vehicle with hydraulic pressure retracting spring brake type break, but because emergency braking is all smaller with the brake braking force square, has satisfied not the requirement of vehicle safety brake when hydraulic braking system loses pressure; And if on four wheel limits a hydraulic pressure retracting spring brake type break is set respectively; One chassis just can have four safety type breaks, and its braking moment just can satisfy the required braking moment of vehicle implementation safety brake, but because wheel limit size is very compact; And that the external dimension of break are not easy to design is too little, so domestic automobile-used ransaxle does not basically all adopt this safety type break; The ransaxle of at present external off highway vehicle basically all adopts the safety type break; And the vehicle that some country does not allow not to be equipped with the safety type break is gone into the well; Ransaxle does not at home all dispose the safety type break basically; Though the domestic vehicle that does not also have mandatory requirement not dispose the safety type break can not use, disposing the safety type break is the prerequisite condition of existing producer.
The trackless assistant conveyance vehicle that uses under the coal mine is in the middle of the environment of very severe, and operating mode is also more special, and the break of its use not only will have good braking ability; Also need possess reliable Security and resistance tocrocking; What the colliery underground vehicle used at present mainly contains two kinds, and the hydraulic braking of a kind of oil bath type cooling and lubricating does not also realize compulsive-cooling cooling and lubricating type safety type break; Break can produce great amount of heat energy when car brakeing; If the heat energy that break produces can not in time conduct or distribute, will make friction plate in the break overheated and the brake braking force square is descended, sharply shorten the working life of friction plate; The 2nd, hydraulic braking, its major defect is that vehicle can't be realized safety brake when losing pressure.
Summary of the invention
The object of the present invention is to provide the spring braking hydraulic pressure release type safety type break of big and low cost of manufacture of a kind of easy realization thrust disc brake off and piston seal life-span.
In order to realize above function, the present invention adopts following technological scheme, spring braking hydraulic pressure release type safety type break; Comprise left shell, central enclosure, thrust disc, right end cap and friction plate, said left shell, central enclosure, right end cap connect successively, and the side that said left shell links to each other with central enclosure is provided with housing groove; Said central enclosure is provided with case protrusion; The diameter of said housing groove is greater than the diameter of said case protrusion, and said thrust disc is installed between the case protrusion of housing groove and central enclosure of left shell, and said left shell, central enclosure and thrust disc surround piston groove jointly; Piston is installed in the said piston groove; Said thrust disc and left shell are provided with the corresponding spring groove, mounting spring in the said spring groove, and said friction plate is installed on the central enclosure inboard; A said end contacts with thrust disc, and the other end contacts with right end cap.
Preferably, spring braking hydraulic pressure release type safety type break of the present invention, said left shell, central enclosure, right end cap connect through bolt successively.
Preferably, spring braking hydraulic pressure release type safety type break of the present invention, the length of said piston is less than the length of said piston groove.
Preferably, spring braking hydraulic pressure release type safety type break of the present invention also comprises first seal ring, and said first seal ring is installed between the housing groove and thrust disc of left shell.
Preferably, spring braking hydraulic pressure release type safety type break of the present invention, said left shell exterior edge face is provided with cooling-oil inlet, cooling-oil outlet and retardation pressure mouth.
Preferably, spring braking hydraulic pressure release type safety type break of the present invention, said left shell exterior edge face also is provided with air hole.
Preferably, spring braking hydraulic pressure release type safety type break of the present invention is also installed wear indicator in the said cooling-oil outlet.
Preferably, spring braking hydraulic pressure release type safety type break of the present invention is provided with the hole along the diametric outer surface of said left shell, on the said hole screw plug is installed.
Preferably, spring braking hydraulic pressure release type safety type break of the present invention, said central enclosure biend is equipped with second seal ring.
Preferably, spring braking hydraulic pressure release type safety type break of the present invention, said friction plate comprises outside friction disc and interior friction plate, said outside friction disc and interior friction plate are at least a pair of.
Preferably, spring braking hydraulic pressure release type safety type break of the present invention also comprises 16, and said 16 are installed on the right end cap outside.
Preferably, spring braking hydraulic pressure release type safety type break of the present invention, the material of said piston is the GCr15 Bearing Steel, and the material of said first seal ring is a copper base teflon, and the material of said spring is the CrV material, and said friction plate is a paper-base friction wafer.
The present invention has following beneficial effect:
1, solve on the present vehicle similar break take place easily owing to the thrust disc jam can't brake off and the piston seal life-span lack very much and the higher shortcoming of the too high manufacture cost that causes of requirement on machining accuracy;
2, piston and thrust disc are divided into two parts,, reduce the machining accuracy and the difficulty of piston and cylinder body like this without the life-span that can prolong piston seal;
3, use hydraulic pressure oil to promote piston and make thrust disc move brake off again, convenient and easy the realization.
Description of drawings
Fig. 1 is a plan view of the present invention;
Fig. 2 is an A-A direction sectional view shown in Figure 1 of the present invention.
The practical implementation instance
To combine accompanying drawing and embodiment to come the present invention is done further detailed explanation below.
Shown in Fig. 1-2, a kind of spring braking hydraulic pressure release type safety type break provided by the invention comprises left shell 1, central enclosure 2, thrust disc 3, right end cap 4 and friction plate; Said left shell 1, central enclosure 2, right end cap 4 connect successively; The side that said left shell 1 links to each other with central enclosure 2 is provided with housing groove, and said central enclosure 2 is provided with case protrusion, and the diameter of said housing groove is greater than the diameter of said case protrusion; Said thrust disc 3 is installed between the case protrusion of housing groove and central enclosure 2 of left shell 1; Said left shell 1, central enclosure 2 and thrust disc 3 surround piston groove jointly, and piston 9 is installed in the said piston groove, and said thrust disc 3 and left shell 1 are provided with the corresponding spring groove; Mounting spring 10 in the said spring groove; Said friction plate is installed on central enclosure 2 inboards, and a said end contacts with thrust disc 3, and the other end contacts with right end cap 4; Said left shell 1, central enclosure 2, right end cap 4 connect through bolt successively; The length of said piston 9 is less than the length of said piston groove; The present invention also comprises first seal ring 17, and said first seal ring 17 is installed between the housing groove and thrust disc 3 of left shell 1; Be provided with cooling-oil inlet 14, cooling-oil outlet 8 and retardation pressure mouth 7 in said left shell 1 exterior edge face; Said left shell 1 exterior edge face also is provided with air hole 13; In the said cooling-oil outlet 8 wear indicator 15 is installed also; Be provided with hole 18 along said left shell 1 diametric outer surface, on the said hole 18 screw plug be installed, the hole is blocked; Said central enclosure 2 biends are equipped with second seal ring 12; Said friction plate comprises outside friction disc 5 and interior friction plate 6, and said outside friction disc 5 and interior friction plate 6 are at least a pair of.
Wherein, spring braking hydraulic pressure release type safety type break of the present invention also comprises 16, and said 16 are installed on right end cap 4 outsides.
Because piston 9 is thin-walled large diameter tubular parts, easy deformation when processing heat treatment, so this part is selected the GCr15 Bearing Steel for use, its benefit is: the one since this material when quenching distortion little, so grinding allowance just can lack; The 2nd, can make surface hardness very high after quenching, thereby make the grinding roughness on surface very high, and then the life-span of the sealing of contact slip is with it improved; The material of first seal ring 17 is a copper base teflon, the movement speed of piston 9 is improved, and reduce the friction factor of the piston 9 and first seal ring 17; The material of said spring 10 is the CrV material, in the processing process, makes spring 10 surface Hardening Treatment, the fatigue life that can improve spring like this; Said friction plate is a paper-base friction wafer, can improve friction factor, and then increases braking moment.
The present invention realizes braking through following mode and the brake off process like this:
One, braking process:
Two, brake off process:
Pressure oil gets into the right side of pistons 9 from pressure oil filler opening 14, makes piston 9 promote thrust disc 3 to left movement to left movement, last pressure spring 10 and in making friction plate 6 combine and then brake off with outside friction disc 5 disengagings.
Wherein, porous plug 13 is used for discharging the air of brake hydraulic line when debugging for the first time in system, and friction disc wear indicator 15 is used to indicate the abrasion condition of outside friction disc 5 and interior friction plate 6, supplies the maintenance man to confirm whether friction plate needs to change.
The foregoing description is a preferred implementation of the present invention; But mode of execution of the present invention is not restricted to the described embodiments; Do not deviate from the change done under spirit of the present invention and the principle, modification, substitute, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (11)
1. spring braking hydraulic pressure release type safety type break; Comprise left shell (1), central enclosure (2), thrust disc (3), right end cap (4) and friction plate, said left shell (1), central enclosure (2), right end cap (4) connect successively, it is characterized in that: said left shell (1) is provided with housing groove with the side that central enclosure (2) links to each other; Said central enclosure (2) is provided with case protrusion; The diameter of said housing groove is greater than the diameter of said case protrusion, and said thrust disc (3) is installed between the case protrusion of housing groove and central enclosure (2) of left shell (1), and said left shell (1), central enclosure (2) and thrust disc (3) surround piston groove jointly; Piston (9) is installed in the said piston groove; Said thrust disc (3) and left shell (1) are provided with the corresponding spring groove, mounting spring (10) in the said spring groove, and said friction plate is installed on central enclosure (2) inboard; A said end contacts with thrust disc (3), and the other end contacts with right end cap (4).
2. spring braking hydraulic pressure release type safety type break according to claim 1 is characterized in that: said left shell (1), central enclosure (2), right end cap (4) connect through bolt successively.
3. spring braking hydraulic pressure release type safety type break according to claim 2, it is characterized in that: the length of said piston (9) is less than the length of said piston groove.
4. spring braking hydraulic pressure release type safety type break according to claim 3 is characterized in that: also comprise first seal ring (17), said first seal ring (17) is installed between the housing groove and thrust disc (3) of left shell (1).
5. spring braking hydraulic pressure release type safety type break according to claim 4, it is characterized in that: said left shell (1) exterior edge face is provided with cooling-oil inlet (14), cooling-oil outlet (8), retardation pressure mouth (7) and air hole (13).
6. spring braking hydraulic pressure release type safety type break according to claim 5 is characterized in that: wear indicator (15) also is installed in the said cooling-oil outlet (8).
7. spring braking hydraulic pressure release type safety type break according to claim 6 is characterized in that: be provided with hole (18) along the diametric outer surface of said left shell (1), on the said hole 18 screw plug be installed.
8. spring braking hydraulic pressure release type safety type break according to claim 7, it is characterized in that: said central enclosure (2) biend is equipped with second seal ring (12).
9. spring braking hydraulic pressure release type safety type break according to claim 8, it is characterized in that: said friction plate comprises outside friction disc (5) and interior friction plate (6), said outside friction disc (5) and interior friction plate (6) are at least a pair of.
10. spring braking hydraulic pressure release type safety type break according to claim 9 is characterized in that: also comprise (16), said (16) are installed on right end cap (4) outside.
11. spring braking hydraulic pressure release type safety type break according to claim 10; It is characterized in that: the material of said piston (9) is the GCr15 Bearing Steel; The material of first seal ring (17) is a copper base teflon; The material of said spring (10) is the CrV material, and said friction plate is a paper-base friction wafer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101249811A CN102635650A (en) | 2012-04-26 | 2012-04-26 | Spring braking hydraulic release type safety brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101249811A CN102635650A (en) | 2012-04-26 | 2012-04-26 | Spring braking hydraulic release type safety brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102635650A true CN102635650A (en) | 2012-08-15 |
Family
ID=46620168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101249811A Pending CN102635650A (en) | 2012-04-26 | 2012-04-26 | Spring braking hydraulic release type safety brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102635650A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595385A (en) * | 2015-01-15 | 2015-05-06 | 三一汽车起重机械有限公司 | Braking mechanism and speed reducer |
| CN105235662A (en) * | 2015-11-10 | 2016-01-13 | 徐州科源液压股份有限公司 | Service brake of mining rubber-tyred vehicle dead axle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0088232A1 (en) * | 1982-03-08 | 1983-09-14 | Maschinenfabrik Stromag GmbH | Control element, particularly a spring-actuated brake or coupling |
| US6516924B1 (en) * | 2000-06-12 | 2003-02-11 | Ausco Products, Inc. | Vehicle brake system |
| CN201575091U (en) * | 2009-11-18 | 2010-09-08 | 荆州市巨鲸传动机械有限公司 | Wet-type brake of gear box |
| CN201599350U (en) * | 2009-12-01 | 2010-10-06 | 焦作制动器股份有限公司 | Hydraulic multiple-disc brake |
| CN201934549U (en) * | 2010-12-23 | 2011-08-17 | 泸州邦立减速机有限责任公司 | Running speed reducer brake for service braking |
| CN102537142A (en) * | 2010-12-23 | 2012-07-04 | 泸州邦立减速机有限责任公司 | Travelling speed reducer brake for travel braking |
-
2012
- 2012-04-26 CN CN2012101249811A patent/CN102635650A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0088232A1 (en) * | 1982-03-08 | 1983-09-14 | Maschinenfabrik Stromag GmbH | Control element, particularly a spring-actuated brake or coupling |
| US6516924B1 (en) * | 2000-06-12 | 2003-02-11 | Ausco Products, Inc. | Vehicle brake system |
| CN201575091U (en) * | 2009-11-18 | 2010-09-08 | 荆州市巨鲸传动机械有限公司 | Wet-type brake of gear box |
| CN201599350U (en) * | 2009-12-01 | 2010-10-06 | 焦作制动器股份有限公司 | Hydraulic multiple-disc brake |
| CN201934549U (en) * | 2010-12-23 | 2011-08-17 | 泸州邦立减速机有限责任公司 | Running speed reducer brake for service braking |
| CN102537142A (en) * | 2010-12-23 | 2012-07-04 | 泸州邦立减速机有限责任公司 | Travelling speed reducer brake for travel braking |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595385A (en) * | 2015-01-15 | 2015-05-06 | 三一汽车起重机械有限公司 | Braking mechanism and speed reducer |
| CN105235662A (en) * | 2015-11-10 | 2016-01-13 | 徐州科源液压股份有限公司 | Service brake of mining rubber-tyred vehicle dead axle |
| CN105235662B (en) * | 2015-11-10 | 2017-09-05 | 徐州科源液压股份有限公司 | A kind of mining rubber-tired cart dead axle running brake |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110242689B (en) | Double-brake disc type brake and automobile braking method | |
| CN103486171B (en) | A kind of master cylinder of rail vehicle hydraulic brake system | |
| CN202768683U (en) | Disc type hydraulic multi-disc brake | |
| CN102494055A (en) | Multi-disk wet-type brake for loading machine | |
| CN205001420U (en) | Pretightning force adjustable multi -disc wet brakes | |
| CN202371053U (en) | Wet brake | |
| CN101943232B (en) | Caliper disc brake for rear axle of electric drive car for mine | |
| CN102537142A (en) | Travelling speed reducer brake for travel braking | |
| CN102635650A (en) | Spring braking hydraulic release type safety brake | |
| CN202215646U (en) | Mechanical normally-closed wet-type brake for vehicles | |
| CN103644223A (en) | Wet disc brake used for heavy mining truck | |
| CN202170947U (en) | Novel multi-disc brake | |
| CN109538663B (en) | Normally closed wet brake | |
| CN106286648B (en) | Brake for hydrostatic transmissions | |
| CN102963212B (en) | Vehicle and rigid dead axle | |
| CN103496356A (en) | Assembly type drive axle of built-in wet type brake wheel edge | |
| CN106740745B (en) | Wet braking drive axle of scraper | |
| CN202579736U (en) | Mine hydraulic spring safety brake | |
| CN202753929U (en) | Wet braking device for driving axle | |
| CN203727102U (en) | Construction machine and drive axle assembly thereof | |
| CN203189571U (en) | Wet-type multiple-disc brake | |
| CN203283216U (en) | Pressure reduction sealing ring | |
| CN207064523U (en) | A kind of enclosed multi-disc wet type brake | |
| CN105235662B (en) | A kind of mining rubber-tired cart dead axle running brake | |
| CN205047704U (en) | Mine car calliper stopper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120815 |