CN106438780A - Hydraulic emergency braking system - Google Patents
Hydraulic emergency braking system Download PDFInfo
- Publication number
- CN106438780A CN106438780A CN201610922633.7A CN201610922633A CN106438780A CN 106438780 A CN106438780 A CN 106438780A CN 201610922633 A CN201610922633 A CN 201610922633A CN 106438780 A CN106438780 A CN 106438780A
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- hydraulic cylinder
- hydraulic pump
- valve
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
Abstract
The invention discloses a hydraulic emergency braking system which consists of a hydraulic pump (1), a one-way valve (2), a pressure relay (3), an energy accumulator (4), a safety valve (5), an oil tank (6), a manual reversing valve (7), an oil pipe (8), a right hydraulic cylinder (9), a left hydraulic cylinder (10) and a fly wheel (11), wherein the hydraulic pump (1) is connected with the one-way valve (2) through a pipeline for pumping pressure oil into the energy accumulator (4); and when pressure of the energy accumulator reaches an upper limit value set by the pressure relay (3), the hydraulic pump stops pumping oil. When the manual reversing valve (7) is on the left position, pressure oil in the energy accumulator (4) enters the left hydraulic cylinder/the right hydraulic cylinder through the oil pipe (8) to push pistons of hydraulic cylinders to extend out and move, so that the fly wheel is clamped to realize an emergency braking function; and when the manual reversing valve (7) is on the right position, the pistons of the hydraulic cylinders draw back under action of return force to end the emergency braking function.
Description
1st, technical field：
The present invention relates to electromechanical integration technology area, especially hydraulic drive and control field.
2nd, background technology：
Have that transmission power is big, structure is simple due to hydraulic drive, easy to control and with low cost the features such as, therefore, liquid
Application in engineering practice for the pressure transmission is increasingly extensive.
With industrial modernization and scale, main equipment gets more and more, and single-machine capacity is also increasing.Once
There is contingency, it is necessary to emergency braking system is so that the plant equipment of high-speed rotation can be stopped rapidly when needing to stop in emergency
Get off, with the harm of minimizing accident of trying one's best.
The system utilizes hydraulicdriven principle, by manipulating the handle of reversal valve, can make the big machinery of high-speed rotation
Equipment stops in a short period of time.
3rd, content of the invention：
It is an object of the invention to provide a kind of hydraulic emergency brakes.Mainly comprise hydraulic pump (1), check valve (2),
Pressure switch (3), accumulator (4), safety valve (5), fuel tank (6), hand-operated direction valve (7), oil pipe (8), right hydraulic cylinder (9),
Left hydraulic cylinder (10), flywheel (11).
The system hydraulic drive operation principle, accumulator (4) is connected with pressure switch (3), hydraulic pump (1) respectively,
The input of check valve (2) is connected with the output end of hydraulic pump (1), and the input of safety valve (5) is with hand-operated direction valve (7) even
Connect, the output end of safety valve (5) is connected with fuel tank (6), the output end of hand-operated direction valve (7) connects left hydraulic cylinder (9), the right side respectively
The input of hydraulic cylinder (10)；Using single hydraulic cylinder (9)/(10), and the piston move toward one another of two hydraulic cylinders of left/right
The both sides outer rim clamping flywheel (11) realizes brake hard；Control braking function with 2 threeway hand-operated direction valves (7), use accumulation of energy
Device (4) and the start and stop of pressure switch (3) control hydraulic pump (1), make hydraulic pump (1) intermittent movement, reach the work(of energy-conservation
Energy.
The operation principle of the present invention is：
The system adopts the motor hydraulic pump (1) integrated with hydraulic pump, is characterized in small volume, reliable operation.Liquid
The effect of press pump (1) is the hydraulic oil in fuel tank (6) to be pumped in accumulator (4) become hydraulic oil.Accumulator (4) and pressure
Relay (3) connects.The effect of pressure switch (3) is that the oil liquid pressure controlling accumulator is within the scope of setting：I.e.
When the oil liquid pressure of accumulator reaches the higher limit of pressure switch setting, it is automatically stopped hydraulic pump operating；When accumulator
When pressure is less than the lower limit that pressure switch sets, start hydraulic pump operating.The effect of safety valve (4) is to limit accumulator
Big operating pressure is without departing from the threshold value of safety valve setting.Hand-operated direction valve (7) control pressure oil and the method for attachment of hydraulic cylinder,
It has two states：On-position and non-brake state.When main equipment is in accidental conditions, hand-operated direction valve (7)
It is in non-brake state；When main equipment is in abnormal operation condition, namely break down when needing brake hard, on duty
The handle wrench of reversal valve to emergency braking condition, now, the hydraulic oil in accumulator (4) enters and is located at flywheel (11) two personnel
The left and right hydraulic cylinder of side, drives two hydraulic cylinder pistons to stretch out clamping flywheel (11), produces huge braking moment by frictional force,
Flywheel is made to brake.After completing braking function, the handle wrench of hand-operated direction valve (7) to non-brake state, two hydraulic cylinder pistons exist
Retract in the presence of restoring force, exit braking function, flywheel is in free state.
4th, brief description：
Fig. 1 forms figure for hydraulic emergency brakes, by hydraulic pump (1), check valve (2), pressure switch (3), accumulation of energy
Device (4), safety valve (5), fuel tank (6), hand-operated direction valve (7), oil pipe (8), right hydraulic cylinder (9), left hydraulic cylinder (10), flywheel
(11) form.
Fig. 2 is the enforcement figure of the present invention it is illustrated that state is in non-brake state for the system.
5th, specific embodiment：
This hydraulic emergency brakes overall structure is simple, comprises basic hydraulic component, embodiment is as shown in Figure 2.
The present embodiment is to implement brake hard it is desirable under urgent fortuitous event for small hydro generator group (600KW), the system
Unit rapid (in 3 seconds) under the rotating speed of n=500rpm can be made to stop, to prevent the wound damaging even personnel of plant equipment
Die.The duty parameter reasonable selection that the volume of accumulator (4) will run according to unit and flywheel, if volume selects too greatly, to make
The volume obtaining whole system increases, and increases cost；If volume selection is too little, hydraulic pump (1) Fraquent start can be made, shorten
The service life of hydraulic pump.This example selects operating pressure 2.0Mpa, and initial nominal volume is the leather bag type hydraulic accumulator of 60L.
Hydraulic cylinder adopts the special single-action hydraulic cylinder of autonomous Design, is characterized in that hydraulic cylinder piston can bear larger radial load, and
And the end face of hydraulic cylinder piston, need wear-resistant high-abrasive material is installed, hydraulic cylinder also installs Self-resetting mechanism additional.In hydraulic cylinder peace
Dress aspect, when hand-operated direction valve (7) is in non-brake state, the end face of hydraulic cylinder piston keeps level with flywheel end face,
Gap is maintained between 5-8mm.
Claims (3)
1. a kind of hydraulic emergency brakes is it is characterised in that by hydraulic pump (1), check valve (2), pressure switch (3), accumulation of energy
Device (4), safety valve (5), fuel tank (6), hand-operated direction valve (7), oil pipe (8), right hydraulic cylinder (9), left hydraulic cylinder (10), flywheel
(11) form, wherein, accumulator (4) is connected with pressure switch (3), hydraulic pump (1) respectively, the input of check valve (2) and
The output end of hydraulic pump (1) connects, and the input of safety valve (5) is connected with hand-operated direction valve (7), the output end of safety valve (5)
It is connected with fuel tank (6).
2. hydraulic emergency brakes according to claim 1 it is characterised in that using single hydraulic cylinder (9)/
, and the piston move toward one another of two hydraulic cylinders of left/right is clamped the both sides outer rim of flywheel (11) and realized skidding (10).
3. hydraulic emergency brakes according to claim 1 is it is characterised in that controlled with 2 threeway hand-operated direction valves (7)
Brake function processed, controls the start and stop of hydraulic pump (1), makes hydraulic pump (1) intermittently with accumulator (4) and pressure switch (3)
Motion, reaches the function of energy-conservation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610922633.7A CN106438780A (en) | 2016-10-25 | 2016-10-25 | Hydraulic emergency braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610922633.7A CN106438780A (en) | 2016-10-25 | 2016-10-25 | Hydraulic emergency braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106438780A true CN106438780A (en) | 2017-02-22 |
Family
ID=58176153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610922633.7A Pending CN106438780A (en) | 2016-10-25 | 2016-10-25 | Hydraulic emergency braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438780A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109353320A (en) * | 2018-10-12 | 2019-02-19 | 桐城市立行电子科技有限公司 | A kind of hydraulic brake system for high speed runner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033733A (en) * | 2007-04-11 | 2007-09-12 | 浙江大学 | Large and middle wind turbine digital intelligent hydraulic brake system |
| CN201304985Y (en) * | 2008-11-17 | 2009-09-09 | 中国三江航天工业集团公司特种车辆技术中心 | Brake system for trailer |
| CN202833779U (en) * | 2012-08-10 | 2013-03-27 | 江苏中机矿山设备有限公司 | Braking device for shearer |
| CN204387167U (en) * | 2014-12-15 | 2015-06-10 | 江西华伍制动器股份有限公司 | The hydraulic braking sytem that a kind of moment is controlled |
| CN206439328U (en) * | 2016-10-25 | 2017-08-25 | 广东技术师范学院 | A kind of hydraulic emergency brakes |
-
2016
- 2016-10-25 CN CN201610922633.7A patent/CN106438780A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033733A (en) * | 2007-04-11 | 2007-09-12 | 浙江大学 | Large and middle wind turbine digital intelligent hydraulic brake system |
| CN201304985Y (en) * | 2008-11-17 | 2009-09-09 | 中国三江航天工业集团公司特种车辆技术中心 | Brake system for trailer |
| CN202833779U (en) * | 2012-08-10 | 2013-03-27 | 江苏中机矿山设备有限公司 | Braking device for shearer |
| CN204387167U (en) * | 2014-12-15 | 2015-06-10 | 江西华伍制动器股份有限公司 | The hydraulic braking sytem that a kind of moment is controlled |
| CN206439328U (en) * | 2016-10-25 | 2017-08-25 | 广东技术师范学院 | A kind of hydraulic emergency brakes |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109353320A (en) * | 2018-10-12 | 2019-02-19 | 桐城市立行电子科技有限公司 | A kind of hydraulic brake system for high speed runner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
|
| WD01 | Invention patent application deemed withdrawn after publication |