CN202608798U - Novel normally-closed braking device - Google Patents
Novel normally-closed braking device Download PDFInfo
- Publication number
- CN202608798U CN202608798U CN 201220200974 CN201220200974U CN202608798U CN 202608798 U CN202608798 U CN 202608798U CN 201220200974 CN201220200974 CN 201220200974 CN 201220200974 U CN201220200974 U CN 201220200974U CN 202608798 U CN202608798 U CN 202608798U
- Authority
- CN
- China
- Prior art keywords
- housing
- valve
- oil circuit
- piston
- oil
- 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 - Lifetime
Links
Abstract
The utility model discloses a novel normally-closed braking device, which is characterized in that a piston is mounted in a shell; a left oil cavity and a right oil cavity are arranged in the shell; a main control oil path opening is connected with an oil path of the left oil cavity; an oil path of the right oil cavity is connected with a check valve and a hydraulic control one-way valve respectively; an outer thread is arranged at one end of the piston and is threaded to an inner thread in a center hole at one end of a brake block, and the other end of the piston is tightly pressed with a butterfly spring group together; a butterfly spring protection cover is sleeved on the butterfly spring group; the hydraulic control one-way valve is mounted on the shell by a bolt; and an internal spring and a valve of the check valve are mounted in an oil inlet in the shell. The novel normally-closed braking device has the characteristics of various functions, high integration, small volume, simple structure, convenience in maintenance, small stroke, large braking force and the like, and can be used for efficiently, safely and reliably braking. The control difficult problem of a sliding car braking system can be solved. Furthermore, the novel normally-closed braking device is beneficial to popularization and application in various high-speed vertical or horizontal braking systems.
Description
Technical field
The utility model relates to a kind of brake equipment, specifically a kind of normally closed brake equipment that is exclusively used in the coaster brake system.
Background technology
In the coaster brake system; Requirement is that 4800 kilograms coaster is implemented brake snub quickly and efficiently from 120 meters high-altitude free falls and when applying 8 tons of ejection forces to quality; Overload and safe handling requirement to satisfy coaster under the system emergency state, can guarantee the coaster safety arrestment simultaneously.Common brake equipment is normally open as the brake equipment that adopt in fields such as automobile, reel, through adopting hydraulic pressure or pneumatic mode operation brake facing, make brake facing and brake disc contact friction, reaches the brake purpose.The needed braking force of coaster safety shut-down that falls at a high speed is at least 20800 Ns; And realize that pine is stopped, brake, three kinds of functions of emergency brake; Existing brake equipment not only braking force is little, and function singleness, far can not satisfy the brake request of coaster brake system.At present, still do not have the brake equipment that is applicable to the coaster brake system at home and emerge,, develop safe, reliable, multi-functional normally closed brake equipment and just become urgent requirement in order to satisfy the demand that vertical coaster launches engineering.
Summary of the invention
The purpose of the utility model is the blank to present this domain-specific brake equipment of coaster brake system, and a kind of safe, reliable, multi-functional normally closed brake equipment is provided.
The utility model solves the technical scheme that its technical matters adopted: a kind of novel normally closed brake equipment comprises brake facing, piston, housing, dish spring group, boiler check valve, hydraulic control one-way valve.It is characterized in that: piston is contained in the housing, in housing, is provided with left and right two oil pockets, and the oil circuit of left oil pocket connects the first master control oil circuit mouth p1, and the oil circuit of right oil pocket is connected with hydraulic control one-way valve with boiler check valve respectively.One end of piston is provided with outside thread, with on the negative thread in the brake facing one end centre hole together, the other end and dish spring group are pressed together, dish spring protective case is sleeved on the dish spring group; Under the effect of dish spring group elastic force, piston and brake facing are in extended position, make brake equipment be in normally off.Hydraulic control one-way valve is installed on the housing with bolt, and the fluid of guaranteeing to meet an urgent need when calibration package starts does not leak through the second master control oil circuit mouth P2.The built-in spring of boiler check valve and valve are integrated to be installed in the housing, has the nonreturn flow characteristic, and the fluid that effectively intercepts master control oil circuit mouth is in series in the calibration package, guarantees coaster brake requirement.
Hydraulic control one-way valve mainly is made up of valve body, spool, spring and end cap.Spool is loaded in the valve body, and an end of spool is equipped with spring, with bolt right end cap is installed to be fastened on the valve body right side, with bolt left end cap is installed to be fastened on the valve body left side; Under the effect of spring force, spool is positioned at position, a left side all the time.Spool adopts difference structure, realizes dual input control.Hydraulic control one-way valve links with the right oil pocket of the first master control oil circuit mouth P1, the second master control oil circuit mouth P2 and housing respectively through oil circuit.At initial position, the right oil pocket of housing and the second master control oil circuit mouth P2 cut off.
The built-in spring of boiler check valve and valve are contained in the fuel feed hole on the housing, and the oil inlet of boiler check valve is connected with system emergency oil circuit mouth Y, and the oil outlet of boiler check valve connects the right oil pocket of housing; Under the effect of built-in spring, valve is in normally off all the time.
Brake facing mainly is made up of pedestal and friction lining.Be provided with negative thread in the pedestal one end centre hole, with on the outside thread on the piston together.Friction lining adopts the compacting of high strength powder metallurgical material to form, and can bear higher positive pressure, has high friction coefficient and service life.
The beneficial effect of the utility model is: the normally closed brake equipment have multi-functional, integrated level is high, volume is little, simple in structure, maintain easily and characteristics such as the big braking force of little stroke, can be efficient, safety, implement braking reliably.This device has not only solved the control difficult problem of coaster brake system, and helps in vertical, the horizontal or vertical brake system of all kinds of high speeds, applying.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 is the structural representation of the utility model.
In the drawings: 1, brake facing, 2, housing, 3, piston, 4, boiler check valve, 5, dish spring protective case, 6, dish spring group, 7, end cap, 8, spring, 9, valve body, 10, spool.
The specific embodiment
In the utility model novel normally closed brake equipment shown in Figure 1, normally closed brake equipment comprises brake facing 1, piston 3, housing 2, dish spring group 5, boiler check valve 4, hydraulic control one-way valve.Piston 3 is contained in the housing 2, in housing 2, is provided with left and right two oil pockets.The oil circuit of left side oil pocket connects the first master control oil circuit mouth P1, and the oil circuit of right oil pocket is connected with hydraulic control one-way valve with boiler check valve 4 respectively.One end of piston 3 is provided with outside thread, with on the negative thread in the brake facing 1 one end centre holes together, the other end and dish spring group 6 are pressed together, dish spring protective case 5 is sleeved on the dish spring group 6; Under the effect of dish spring group 6 elastic force, make piston 3 and brake facing 1 be in extended position, brake equipment is in normally off.Hydraulic control one-way valve is installed on the housing 2 with bolt, and the fluid of guaranteeing to meet an urgent need when calibration package starts does not leak through the second master control oil circuit mouth P2.The built-in spring of boiler check valve 4 and valve are integrated to be installed in the housing 2, has the nonreturn flow characteristic, and the fluid that effectively intercepts master control oil circuit mouth is in series in the calibration package, guarantees coaster brake requirement.
Hydraulic control one-way valve mainly is made up of valve body 9, spool 10, spring 8 and end cap 7.Spool 10 is contained in the hole of valve body 9, and an end of spool 10 is equipped with spring 8, with bolt right end cap 7 is installed to be fastened on the right side of valve body 9, with bolt left end cap 7 ' is installed to be fastened on the left side of valve body 9; Under the effect of spring force, spool 10 is positioned at position, a left side all the time.Spool 10 adopts difference structure, realizes dual input control.Hydraulic control one-way valve links with the right oil pocket of the first master control oil circuit mouth P1, the second master control oil circuit mouth P2 and housing 2 respectively through oil circuit.At initial position, the right oil pocket of housing 2 and the second master control oil circuit mouth P2 cut off.
The built-in spring of boiler check valve 4 and valve are contained in the fuel feed hole on the housing, and the oil-feed aperture of boiler check valve 4 is connected with system emergency oil circuit mouth Y, and the oil outlet of boiler check valve 4 connects the right oil pocket of housing; Under the effect of built-in spring, valve is in normally off all the time.
Brake facing 1 mainly is made up of pedestal and friction lining.Be provided with negative thread in the pedestal one end centre hole, with on the outside thread on the piston 3 together.Friction lining adopts the compacting of high strength powder metallurgical material to form, and can bear higher positive pressure, has high friction coefficient and service life.
Principle of work of the present invention is: in the embodiment shown in fig. 1, when first, second master control oil circuit mouth (P1, P2) and system emergency oil circuit mouth Y all do not have the oil pressure input, under the effect of dish spring group, push piston to left side position, brake facing stretches out left.The prevention coaster glides under the effect of dish spring mechanical force, realizes normally closed braking function.
When the first master control oil circuit mouth P1 connects oil-feed; When the second master control oil circuit mouth P2 connects oil return; Hydraulic oil flows into the left oil pocket of housing and the left end of hydraulic control one-way valve inner spool respectively through the first master control oil circuit mouth P1; Under action of hydraulic force, the application force that the hydraulic control one-way valve inner spool overcomes spring moves right, and the right oil pocket of the second master control oil circuit mouth P2 and housing is connected.Simultaneously, hydraulic coupling overcomes the application force of dish spring group, and driven plunger moves to right position from left side position, drives the brake facing withdrawal, realizes the pine function of stopping.
When the second master control oil circuit mouth P2 connected oil-feed, when the first master control oil circuit mouth P1 connected oil return, hydraulic oil flowed into hydraulic control one-way valve through the second master control oil circuit mouth P2; Hydraulic oil acts on the left and right sides at spool middle part simultaneously, because of right side, spool middle part area greater than the left side area, then hydraulic coupling overcomes spring force and drives spool and move right; The right oil pocket of the second master control oil circuit mouth P2 and housing 2 is connected; Hydraulic oil gets into the right oil pocket of housing, and piston is under the combined action of dish spring group and hydraulic coupling, and driven plunger is fast to left movement; The drive brake facing stretches out, and realizes braking function.Hydraulic oil gets into the oil outlet of boiler check valve simultaneously, under the unidirectional characteristic of boiler check valve 4, the hydraulic oil in the right oil pocket of housing can't be in series in the calibration package, guarantees normally closed brake equipment brake request.
When calibration package started, hydraulic oil was input to emergency oil crossing Y, under action of hydraulic force; The built-in spring of boiler check valve is compressed, and valve is opened, boiler check valve work; Hydraulic oil flows into the right oil pocket of housing through boiler check valve, no matter this moment, which kind of operating mode normally closed brake equipment was in, no matter also whether the first master control oil circuit mouth P1 and the second master control oil circuit mouth P2 connect with oil-feed; Piston is released in the hydraulic oil of emergency oil crossing Y and the combined action of dish spring group, and brake facing is stretched out, and realizes the emergency brake function.
Claims (4)
1. a novel normally closed brake equipment comprises brake facing, piston, housing, dish spring group, boiler check valve, hydraulic control one-way valve; It is characterized in that: piston is contained in the housing, in housing, is provided with left and right two oil pockets, and the oil circuit of left oil pocket connects the first master control oil circuit mouth (P1), and the oil circuit of right oil pocket is connected with hydraulic control one-way valve with boiler check valve respectively; One end of piston is provided with outside thread, with on the negative thread in the brake facing one end centre hole together, the other end and dish spring group are pressed together, dish spring protective case is sleeved on the dish spring group; Under the effect of dish spring group elastic force, piston and brake facing are in extended position, make brake equipment be in normally off; Hydraulic control one-way valve is installed on the housing with bolt, the built-in spring of boiler check valve and valve is integrated is installed in the housing.
2. a kind of novel normally closed brake equipment according to claim 1, it is characterized in that: hydraulic control one-way valve mainly is made up of valve body, spool, spring and end cap; Spool is loaded in the valve body, and an end of spool is equipped with spring, with bolt right end cap is installed to be fastened on the valve body right side, with bolt left end cap is installed to be fastened on the valve body left side; Under the effect of spring force, spool is positioned at position, a left side all the time; Hydraulic control one-way valve links with the right oil pocket of the first master control oil circuit mouth (P1), the first master control oil circuit mouth (P2) and housing respectively through oil circuit; At initial position, the right oil pocket of housing and the first master control oil circuit mouth (P2) cut off.
3. a kind of novel normally closed brake equipment according to claim 1; It is characterized in that: the built-in spring of boiler check valve and valve are contained in the fuel feed hole on the housing; The aperture of boiler check valve fuel feed hole is connected with system emergency oil circuit mouth (Y), and the outlet of boiler check valve connects the right oil pocket of housing.
4. a kind of novel normally closed brake equipment according to claim 1, it is characterized in that: brake facing mainly is made up of pedestal and friction lining; Be provided with in the pedestal one end centre hole on the outside thread on negative thread and the piston together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220200974 CN202608798U (en) | 2012-05-04 | 2012-05-04 | Novel normally-closed braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220200974 CN202608798U (en) | 2012-05-04 | 2012-05-04 | Novel normally-closed braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202608798U true CN202608798U (en) | 2012-12-19 |
Family
ID=47342522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220200974 Expired - Lifetime CN202608798U (en) | 2012-05-04 | 2012-05-04 | Novel normally-closed braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202608798U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103043073A (en) * | 2012-12-29 | 2013-04-17 | 徐州苏煤矿山设备制造有限公司 | Brake for mining safety braking car of monorail crane |
| CN103144622A (en) * | 2013-03-23 | 2013-06-12 | 牛国亮 | Automobile hydraulic braking device |
| CN103381841A (en) * | 2012-05-04 | 2013-11-06 | 陈镇汉 | Novel normally closed braking device |
-
2012
- 2012-05-04 CN CN 201220200974 patent/CN202608798U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381841A (en) * | 2012-05-04 | 2013-11-06 | 陈镇汉 | Novel normally closed braking device |
| CN103043073A (en) * | 2012-12-29 | 2013-04-17 | 徐州苏煤矿山设备制造有限公司 | Brake for mining safety braking car of monorail crane |
| CN103043073B (en) * | 2012-12-29 | 2015-12-23 | 徐州苏煤矿山设备制造有限公司 | A kind of safe braking vehicle of monorail crane for mines drg |
| CN103144622A (en) * | 2013-03-23 | 2013-06-12 | 牛国亮 | Automobile hydraulic braking device |
| CN103144622B (en) * | 2013-03-23 | 2015-12-23 | 牛国亮 | A kind of hydraulic vehicle brake system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202608798U (en) | Novel normally-closed braking device | |
| CN106143456A (en) | The brakes of large-tonnage storage battery forktruck | |
| CN101922524A (en) | Enclosed multi-disc wet type braking device | |
| CN103381841A (en) | Novel normally closed braking device | |
| CN107351828B (en) | Mining vehicle hydraulic system with automatic protection device for vehicle braking failure | |
| CN102336187A (en) | Hand brake valve of rubber-tire vehicle | |
| CN206766014U (en) | A kind of mine vehicle hydraulic system with vehicle brake fade autoamtic protection device for forming | |
| CN203854674U (en) | Control device for quick brake of monorail crane | |
| CN203128103U (en) | External braking device for free hook falling of winch | |
| CN103010196B (en) | Pilot central valve position control type integrated master pump | |
| CN201802789U (en) | Totally closed multi-disc wet brake device | |
| US20170036897A1 (en) | Oil Return Mechanism | |
| CN102501844A (en) | Hydraulic braking control device | |
| CN202243003U (en) | Forcible brake device for automobile under condition of treading accelerator pedal by mistake | |
| CN204250386U (en) | Normally closed controlled hydraulic brake gear | |
| CN202283914U (en) | Manual brake valve of rubber wheel vehicle | |
| CN203497995U (en) | Transition plate used for pneumatic hydraulic jack and pneumatic hydraulic jack | |
| CN210599957U (en) | Brake hydraulic system | |
| CN102358277A (en) | Hydraulic braking system of container front crane | |
| CN105292448A (en) | Helicopter wheel brake controller | |
| CN103615571B (en) | A kind of oil rub resistance solenoid valve | |
| CN206871051U (en) | Brake emergency stop valve interlock | |
| CN202541514U (en) | One-way valve for automobile hydraulic-brake vacuum booster system | |
| CN207454849U (en) | A kind of safety valve | |
| CN209719560U (en) | Catcher for mine truck |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xiangyang HangYu electromechanical hydraulic application technology Co. Ltd. Assignor: Chen Zhenhan|Chen Yi|Chen Yang|Xia Ming Contract record no.: 2014420000153 Denomination of utility model: Novel normally closed braking device Granted publication date: 20121219 License type: Exclusive License Record date: 20140721 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |