CN112443598A - Hydraulic disc type brake system for work braking - Google Patents
Hydraulic disc type brake system for work braking Download PDFInfo
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- CN112443598A CN112443598A CN201910829079.1A CN201910829079A CN112443598A CN 112443598 A CN112443598 A CN 112443598A CN 201910829079 A CN201910829079 A CN 201910829079A CN 112443598 A CN112443598 A CN 112443598A
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- hydraulic
- brake
- oil
- pipe
- pressure
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- 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
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
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- 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
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- 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 provides a hydraulic disc brake system for work braking, which comprises a hydraulic disc brake and a small energy storage type hydraulic station, wherein the small energy storage type hydraulic station is connected with the hydraulic disc brake and provides a power source for braking the hydraulic disc brake; the hydraulic disc brake comprises a base, a fixing plate, a brake block, a brake disc and a brake cylinder; the small energy storage type hydraulic station comprises a motor, a hydraulic pump, a hydraulic oil tank and an energy accumulator; the hydraulic oil tank is communicated with a first oil supply main pipe, a second oil supply main pipe and an oil return main pipe, the main oil pipe is converged into a main oil pipe, branch oil pipes with the same number as the main oil pipe are distributed according to the number of the brake cylinders, the branch oil pipes are respectively communicated with corresponding hydraulic oil inlet and outlet of the single-acting cylinder, and a first normally-open one-way electromagnetic valve is arranged on the oil return main pipe. The invention has stable operation performance and less maintenance failure rate, and can meet the braking requirement of a super-conventional crane.
Description
Technical Field
The invention belongs to the field of brake systems, and particularly relates to a hydraulic disc type brake system for work braking.
Background
With the steady and continuous increase of national economy in recent years in China, a large number of hoisting and transporting machines with multiple varieties, high quality and high reliability are required to be adopted for development of various industries. As an important basic component in the equipment manufacturing industry in China, products covered by the crane transportation equipment industry are numerous, and the specialty is strong. Due to the universality, the foundation and the importance of the use of hoisting and transporting machinery, hoisting and transporting technology is one of the development focuses in many industrially developed countries, and the development of the field is promoted by the continuous increase of the international market demand. The market demand for high-end hoisting products presents a situation of rigid demand. The brake is used as a key basic part in the hoisting and transporting machinery, and is developed towards more reasonable, more optimized and more advanced aspects on the product structure; the function of the system is diversified, and the aim of the system is to better meet the requirement of a host.
The conventional hydraulic station is provided with a pressure relay and an electromagnetic valve, and after the system is electrified and pressurized, the pressure maintaining effect in the brake opening working state is poor, so that a motor is easy to start frequently during working; the existing pressure-maintaining hydraulic station is provided with a pressure relay, an electromagnetic valve and an energy accumulator, a system is electrified to be pressurized, the energy accumulator is configured to be pressurized simultaneously, and the pressure-maintaining effect is good in the brake-opening working state. The system has a certain pressure compensation function to realize the voltage stabilization and pressure maintaining functions during switching-off operation, and simultaneously reduces the starting frequency of the motor during operation, but the control type increases the pressure rising and pressure releasing time of the system on the basis of realizing the voltage stabilization and pressure maintaining, thereby causing the increase of the system power consumption.
At the present stage, the economy of China is increased at a high speed, large-tonnage equipment is continuously put into use, the production efficiency is improved, the yield is high, and the material flow is large. The working conditions require that the hoisting and transporting equipment has high operation rate, stable operation performance and less maintenance failure rate. The conventional brake device is difficult to meet the requirements of working conditions. A novel braking device suitable for the operation condition of the existing equipment is urgently needed to meet the requirement of the ultra-conventional crane.
Disclosure of Invention
The object of the present invention is to provide a hydraulic disc brake system for service braking that solves the problems set forth in the background above.
In order to achieve the purpose, the invention adopts the following technical scheme: a hydraulic disc brake system for work braking comprises a hydraulic disc brake and a small energy storage type hydraulic station which is connected with the hydraulic disc brake and provides a power source for braking the hydraulic disc brake;
the hydraulic disc brake comprises a base, a fixing plate, brake blocks, a brake disc and a brake cylinder, wherein the fixing plate is fixedly connected to the top surface of the base, at least two connecting seats are arranged on the fixing plate along the length direction, protruding baffle plates are arranged between the upper end surface and the lower end surface of each connecting seat, a rotating shaft is arranged between the baffle plates, the connecting seats are rotatably connected with connecting plates through the rotating shafts, one ends, close to the brake disc, of the connecting plates are fixedly connected with the brake blocks, and the brake blocks are arranged on one side of the brake; one end of the connecting plate, which is far away from the brake disc, is connected with the brake cylinder; the brake cylinder is a single-acting cylinder and comprises a brake cylinder body, a piston and a disc spring, the piston is fixedly connected with a connecting plate, two ends of the disc spring respectively support against the piston and the inner bottom of the brake cylinder body, and the brake cylinder body is provided with a single-acting cylinder hydraulic oil inlet and outlet;
the small energy storage type hydraulic station comprises a motor, a hydraulic pump, a hydraulic oil tank and an energy accumulator; the hydraulic oil tank is communicated with the first oil supply main pipe, the second oil supply main pipe and the second oil return main pipe and converges into a main oil pipe, the main oil pipe is divided into branch oil pipes with the same number as the main oil pipe according to the number of the brake cylinders, the branch oil pipes are respectively communicated with corresponding hydraulic oil inlets and outlets of the single-acting cylinders, and the first normally open one-way electromagnetic valve is arranged on the oil return main pipe;
the upper edge of the oil supply main pipe I is sequentially provided with a filter I, a hydraulic pump, a pressure relay, a pressure gauge, an energy accumulator and a normally open one-way electromagnetic valve II along the flowing direction of hydraulic oil during oil supply, and the hydraulic pump is driven by a motor; an oil supply main pipe I between the hydraulic pump and the pressure relay is communicated with a hydraulic oil tank through an oil return branch pipe, and the oil return branch pipe is provided with an overflow valve;
a second filter and a manual pump are sequentially arranged on the second oil supply main pipe along the flowing direction of hydraulic oil during oil supply;
the first filter is arranged at a liquid inlet of the main oil supply pipe in the hydraulic oil tank; the second filter is arranged at a liquid inlet of the second oil supply main pipe in the hydraulic oil tank;
and the hydraulic oil tank is provided with a liquid level switch, an air filter and a liquid level meter.
Furthermore, the oil supply main pipe I between the hydraulic pump and the pressure relay is provided with one-way valves, and the oil supply main pipes II at the two ends of the manual pump are provided with one-way valves.
The electric control working principle of the small energy storage type hydraulic station is as follows: the electric control circuit is provided with a switching power supply, a contactor KM1, a contactor KM2 and control ports C1 and C2; (1) energy storage and pressure maintaining: the system is powered on, the switch power supply, the contactor KM1 and the normally open one-way solenoid valve are powered on to work, the motor rotates clockwise to start, the hydraulic pump conveys oil to the energy accumulator to charge the pressure, the hydraulic station system generates pressure to fill the energy accumulator and then rises, when the pressure reaches the set action pressure of the pressure relay, the pressure relay sends a signal, the motor stops running, and the hydraulic station system is in an energy storage and pressure maintaining state. (2) And (3) opening and releasing the hydraulic disc brake and maintaining the pressure of the system, namely, conducting control ports C1 and C2, powering on a contactor KM2 and a normally open one-way electromagnetic valve I to close a passage between a brake cylinder and a hydraulic oil tank, and simultaneously powering off a normally open one-way electromagnetic valve II to enable high-pressure hydraulic oil to flow to the brake cylinder from an energy accumulator, so that the hydraulic disc brake quickly executes opening and releasing actions.
When the system pressure of the hydraulic station is lower than the action pressure value set by the pressure relay, the motor is automatically started to supplement pressure.
(3) Closing the hydraulic disc brake:
the control ports Cl and C2 are disconnected, the contactor KM2 and the normally open one-way electromagnetic valve I are powered off, the brake cylinder and the hydraulic oil tank conduction system are released,
under the action of spring force in a brake cylinder of the hydraulic disc brake, the hydraulic disc brake quickly executes a brake closing action; the knob of the electric control one-way solenoid valve I and the knob of the normally open one-way solenoid valve II are always not closed.
The working principle of manual control of the small energy storage type hydraulic station is as follows:
(1) opening the brake of the hydraulic disc brake and maintaining the pressure of the system, namely screwing (clockwise screwing in) a knob of a normally open one-way electromagnetic valve I, moving a handle of a manual pump back and forth, and then the hydraulic disc brake can execute the action of opening the brake and releasing.
(2) And (3) closing the hydraulic disc brake, namely loosening (anticlockwise screwing out) a knob of a normally-open one-way electromagnetic valve I, releasing pressure of a system, and executing a closing action by the hydraulic disc brake under the action of a spring force in a brake cylinder of the hydraulic disc brake.
(3) Gradual braking control
And (3) adjusting a knob for opening the one-way electromagnetic valve I to rotate clockwise (not to be closed) so as to prolong the closing time, and to rotate counterclockwise so as to shorten the closing time.
(4) Low level protection
When the hydraulic oil in the hydraulic oil tank is lower than the set value of the liquid level switch, the liquid level switch is disconnected, and the motor stops running.
Small hydraulic station system adjustment
l, completely loosening (anticlockwise screwing out) an adjusting screw of the overflow valve, simultaneously screwing (clockwise screwing in) the adjusting screw of the pressure relay, switching on a power supply, electrifying the switch power supply, the contactor KM1 and the normally open one-way electromagnetic valve to work, and clockwise rotating the motor at the moment, wherein the overflow valve is in an overpressure overflow state;
2. slowly adjusting (clockwise screwing in) an adjusting screw of the overflow valve, observing an indicated value of a pressure gauge, stopping adjusting the adjusting screw of the overflow valve when the pressure of a hydraulic station system reaches 1.2 times of a required adjusting pressure value, and fastening a locking nut of the overflow valve;
3. slowly unscrewing (anticlockwise unscrewing) an adjusting screw of the pressure relay, and continuously unscrewing 1-2 circles of the adjusting screw of the pressure relay after a motor stops rotating when a signal is emitted by the action of the adjusting screw:
4. disconnecting the switching power supply, releasing the pressure of the system, closing the switching power supply again, observing a pressure indicated value of the pressure gauge after the system establishes the pressure and the motor stops rotating, and if the pressure indicated value of the pressure gauge reaches a required pressure value, slowly screwing an adjusting screw of the pressure relay to enable the pressure to reach the required pressure value;
5. and repeating the operation of the item 4 for three times, and if the pressure relay can correctly send a signal and the indicated value of the pressure gauge can reach the adjustment pressure value required by the system by observation, finishing the system adjustment.
Has the advantages that: (1) the interlocking control type of the normally open one-way solenoid valve I and the normally open one-way solenoid valve double solenoid valves is configured, the functions of the system of upper pressure energy storage and pressure maintaining and the quick brake-on and brake-off of the hydraulic disc brake are realized through the interactive switching of the two solenoid valves, the action time of the hydraulic disc brake is greatly shortened, and the working frequency is increased. (2) The high-capacity high-energy-storage structure meets the functions of preliminary establishment of storage, energy storage and pressure maintaining and automatic pressure compensation of a pressure unit of a hydraulic system, provides a hydraulic power source with timely flow and stable pressure for a matched hydraulic disc brake, and greatly reduces impact kinetic energy to the hydraulic disc brake; the high-energy-storage hydraulic structural design reduces the pressure build-up time of a hydraulic system, the response time of opening the brake is within a second (0.5-0.8 s) from the response of a traditional hydraulic system in the order of seconds, and the pressure rise and release response time of the hydraulic disc brake is greatly prolonged; (3) and a manual pump is configured to be used as an emergency power source during power failure and maintenance. (4) When the system normally works, the motor only works in short time when the voltage is supplemented, so that the energy is saved, the consumption is reduced, the service life of the motor is greatly prolonged, and the energy consumption of the system is reduced. The pressure maintaining performance of the small hydraulic station system in the working state is improved from about 10min to an hour level, energy is saved, consumption is reduced, the service life of a motor is greatly prolonged, and the energy consumption loss of the system is reduced. (5) The delayed braking control of the hydraulic disc brake is realized by adjusting a knob of the normally open one-way solenoid valve. (6) The hydraulic oil tank has a low liquid level protection function, when hydraulic oil in the hydraulic oil tank is lower than a set value of the liquid level switch, the liquid level switch is disconnected, and the motor stops running to realize the low liquid level protection function. The invention has stable operation performance and less maintenance failure rate, and can meet the braking requirement of a super-conventional crane.
Drawings
FIG. 1 is a schematic illustration of a hydraulic disc brake according to the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a working schematic diagram of a hydraulic system of the small-sized energy storage type hydraulic station of the invention;
FIG. 4 is an electrical control schematic diagram of the small-sized energy storage type hydraulic station of the present invention;
reference numerals: 100. the hydraulic brake system comprises a base, 101, a fixing plate, 102, a brake block, 103, a brake disc, 104, a brake cylinder, 105, a connecting seat, 106, a baffle plate, 107, a rotating shaft, 108, a connecting plate, 109, a brake cylinder body, 110, a piston, 111, a disc spring, 1, a motor, 2, a hydraulic pump, 3, a one-way valve, 4, an overflow valve, 5, a manual pump, 6, a pressure relay, 7, a liquid level switch, 81, a normally open one-way solenoid valve I, 82, a normally open one-way solenoid valve II, 9, a pressure gauge, 10, an air filter, 11, a filter II, 12, a filter I, 13, a liquid level meter, 14, an accumulator, 15, a hydraulic oil tank, 112, an oil supply main pipe I, 113, an oil supply main pipe II, 114, a main pipe oil return, 115.
Detailed Description
The present invention will be described in further detail with reference to the following description of embodiments thereof, which is provided for helping those skilled in the art to more fully, accurately and deeply understand the concept and technical scheme of the present invention and to facilitate the implementation thereof.
Referring to fig. 1-4, a hydraulic disc brake system for service braking includes a hydraulic disc brake and a small-sized accumulator hydraulic station connected to the hydraulic disc brake and providing a power source for braking thereof;
the hydraulic disc brake comprises a base 100, a fixing plate 101, brake blocks 102, a brake disc 103 and a brake cylinder 104, wherein the fixing plate 101 is fixedly connected to the top surface of the base 100, at least two connecting seats 105 are arranged on the fixing plate 101 in the length direction, protruding baffle plates 106 are arranged between the upper end surface and the lower end surface of each connecting seat 103, a rotating shaft 107 is arranged between the baffle plates 106, the connecting seats 105 are rotatably connected with connecting plates 108 through the rotating shafts 107, one ends of the connecting plates 108, close to the brake disc 103, are fixedly connected with the brake blocks 102, and the brake blocks 102 are arranged on one side of the brake disc 103; one end of the connecting plate 108, which is far away from the brake disc 103, is connected with the brake cylinder 104; the brake cylinder 104 is a single-acting cylinder, the brake cylinder 104 comprises a brake cylinder body 109, a piston 110 and a disc spring 111, the piston 110 is fixedly connected with a connecting plate 108, two ends of the disc spring 111 respectively abut against the inner bottoms of the piston 110 and the brake cylinder body 109, and the brake cylinder body 109 is provided with a single-acting cylinder hydraulic oil inlet and outlet;
the small energy storage type hydraulic station comprises a motor 1, a hydraulic pump 2, a hydraulic oil tank 15 and an energy accumulator 14; the hydraulic oil tank 15 is communicated with the oil supply main pipe I112, the oil supply main pipe II 113 and the oil return main pipe 114 and is converged into a main oil pipe 115, the main oil pipe 115 is divided into branch oil pipes 116 with the same number according to the number of the brake cylinders 104, the branch oil pipes 116 are respectively communicated with corresponding single-acting cylinder hydraulic oil inlets and outlets, and the oil return main pipe 114 is provided with a normally open one-way electromagnetic valve I81;
the first oil supply main pipe 112 is sequentially provided with a first filter 12, a hydraulic pump 2, a pressure relay 6, a pressure gauge 9, an energy accumulator 14 and a second normally open one-way electromagnetic valve 82 along the flowing direction of hydraulic oil during oil supply, and the hydraulic pump 2 is driven by a motor 1; the first oil supply main pipe 112 between the hydraulic pump 2 and the pressure relay 6 is communicated with the hydraulic oil tank 15 through an oil return branch pipe 117, and the oil return branch pipe 117 is provided with an overflow valve 4;
the second oil supply main pipe 82 is sequentially provided with a second filter 11 and a manual pump 5 along the flowing direction of hydraulic oil during oil supply;
the first filter 12 is arranged at an inlet of a first oil supply main pipe 112 in the hydraulic oil tank 15; the second filter 11 is arranged at a liquid inlet of a second oil supply main pipe 113 in the hydraulic oil tank 15;
the hydraulic oil tank 15 is provided with a liquid level switch 7, an air filter 10 and a liquid level meter 13.
Further, the oil supply main pipe 112 between the hydraulic pump 2 and the pressure relay 6 is provided with a check valve 3, and the oil supply main pipes 113 at two ends of the manual pump 5 are provided with check valves 3.
The electric control working principle of the small energy storage type hydraulic station is as follows: the electric control circuit is provided with a switching power supply, a contactor KM1, a contactor KM2 and control ports C1 and C2; (1) energy storage and pressure maintaining: firstly, the system is electrified, the switching power supply, the contactor KM1 and the normally open one-way solenoid valve II 82 are electrified to work, the motor 1 rotates clockwise to start, the hydraulic pump 2 delivers oil to the energy accumulator 14 to charge pressure, the hydraulic station system generates pressure to fully fill the energy accumulator 14 and then rises, when the set action pressure of the pressure relay 6 is reached, the pressure relay 6 sends a signal, the motor 1 stops running, and the hydraulic station system is in an energy storage and pressure maintaining state. (2) And (3) opening and releasing the hydraulic disc brake and maintaining the pressure of the system, namely, conducting control ports C1 and C2, electrifying a contactor KM2 and a normally open one-way electromagnetic valve I81 to close a passage between a brake cylinder 104 and a hydraulic oil tank 15, and simultaneously, deenergizing a normally open one-way electromagnetic valve II 82, allowing high-pressure hydraulic oil to flow to the brake cylinder 104 from an accumulator 14, and quickly executing opening and releasing actions of the hydraulic disc brake.
When the system pressure of the hydraulic station is lower than the action pressure value set by the pressure relay 6, the motor 1 is automatically started to supplement pressure.
(3) Closing the hydraulic disc brake:
the control ports Cl and C2 are disconnected, the contactor KM2 and the normally open one-way solenoid valve I81 are powered off, the brake cylinder 104 and the hydraulic oil tank 15 are communicated to release pressure,
under the action of the spring force of the disc spring 111 in the hydraulic disc brake cylinder 104, the hydraulic disc brake quickly executes a brake closing action; and the knobs of the first normally-open one-way solenoid valve 81 and the second normally-open one-way solenoid valve 82 cannot be closed during electric control.
The working principle of manual control of the small energy storage type hydraulic station is as follows:
(1) and (3) opening the brake and maintaining the pressure of the system by the hydraulic disc brake, namely screwing (clockwise screwing in) a knob of a normally open one-way electromagnetic valve I81, and moving a handle of the manual pump 5 back and forth, so that the hydraulic disc brake can execute the brake opening and releasing actions.
(2) And (3) closing the hydraulic disc brake, namely loosening (anticlockwise screwing out) a knob of a normally-open one-way electromagnetic valve I81, releasing pressure of the system, and executing a closing action by the hydraulic disc brake under the action of a spring force in a brake cylinder 104 of the hydraulic disc brake.
(3) Gradual braking control
And (3) adjusting a knob for opening the one-way electromagnetic valve I81 to rotate clockwise (not to be closed), so that the closing time is prolonged, and to rotate counterclockwise, so that the closing time is shortened.
(4) Low level protection
When the hydraulic oil in the hydraulic oil tank 15 is lower than the set value of the liquid level switch 7, the liquid level switch 7 is disconnected, and the motor 1 stops running.
Adjusting a small hydraulic station system:
l, completely unscrewing (anticlockwise screwing out) an adjusting screw of the overflow valve 4, simultaneously screwing (clockwise screwing in) the adjusting screw of the pressure relay 6, switching on a power supply, electrifying the switching power supply, the contactor KM1 and the normally open one-way solenoid valve II 82 to work, at the moment, clockwise rotating the motor 1, and enabling the overflow valve 4 to be in an overpressure overflow state;
2. slowly adjusting (screwing in clockwise) an adjusting screw of the overflow valve 4, observing an indicated value of a pressure gauge 9, stopping adjusting the adjusting screw of the overflow valve 4 when the pressure of a hydraulic station system reaches 1.2 times of a required adjusting pressure value, and fastening a locking nut of the overflow valve 4;
3. slowly unscrewing (anticlockwise unscrewing) the adjusting screw of the pressure relay 6, and continuously unscrewing 1-2 circles of the adjusting screw of the pressure relay 6 after the motor 1 stops rotating after the adjusting screw acts to send out a signal:
4. disconnecting the switching power supply, releasing the pressure of the system, closing the switching power supply again, observing the pressure indicated value of the pressure gauge 9 after the system builds the pressure and the motor 1 stops rotating, and if the pressure indicated value reaches the required pressure value, slowly screwing the adjusting screw of the pressure relay 6 to enable the pressure to reach the required pressure value;
5. and repeating the operation of the item 4 for three times, and if the pressure relay 6 can correctly send a signal and the indicated value of the pressure gauge 9 can reach the adjustment pressure value required by the system by observation, completing the system adjustment.
The invention is described above with reference to the accompanying drawings as an example, in so far as it is a insubstantial improvement in the method concept and technical solutions of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (2)
1. A hydraulic disc brake system for work braking is characterized by comprising a hydraulic disc brake and a small energy storage type hydraulic station which is connected with the hydraulic disc brake and provides a power source for braking the hydraulic disc brake;
the hydraulic disc brake comprises a base, a fixing plate, brake blocks, a brake disc and a brake cylinder, wherein the fixing plate is fixedly connected to the top surface of the base, at least two connecting seats are arranged on the fixing plate along the length direction, protruding baffle plates are arranged between the upper end surface and the lower end surface of each connecting seat, a rotating shaft is arranged between the baffle plates, the connecting seats are rotatably connected with connecting plates through the rotating shafts, one ends, close to the brake disc, of the connecting plates are fixedly connected with the brake blocks, and the brake blocks are arranged on one side of the brake; one end of the connecting plate, which is far away from the brake disc, is connected with the brake cylinder; the brake cylinder is a single-acting cylinder and comprises a brake cylinder body, a piston and a disc spring, the piston is fixedly connected with a connecting plate, two ends of the disc spring respectively support against the piston and the inner bottom of the brake cylinder body, and the brake cylinder body is provided with a single-acting cylinder hydraulic oil inlet and outlet;
the small energy storage type hydraulic station comprises a motor, a hydraulic pump, a hydraulic oil tank and an energy accumulator; the hydraulic oil tank is communicated with the first oil supply main pipe, the second oil supply main pipe and the second oil return main pipe and converges into a main oil pipe, the main oil pipe is divided into branch oil pipes with the same number as the main oil pipe according to the number of the brake cylinders, the branch oil pipes are respectively communicated with corresponding hydraulic oil inlets and outlets of the single-acting cylinders, and the first normally open one-way electromagnetic valve is arranged on the oil return main pipe;
the upper edge of the oil supply main pipe I is sequentially provided with a filter I, a hydraulic pump, a pressure relay, a pressure gauge, an energy accumulator and a normally open one-way electromagnetic valve II along the flowing direction of hydraulic oil during oil supply, and the hydraulic pump is driven by a motor; an oil supply main pipe I between the hydraulic pump and the pressure relay is communicated with a hydraulic oil tank through an oil return branch pipe, and the oil return branch pipe is provided with an overflow valve;
a second filter and a manual pump are sequentially arranged on the second oil supply main pipe along the flowing direction of hydraulic oil during oil supply;
the first filter is arranged at a liquid inlet of the main oil supply pipe in the hydraulic oil tank; the second filter is arranged at a liquid inlet of the second oil supply main pipe in the hydraulic oil tank;
and the hydraulic oil tank is provided with a liquid level switch, an air filter and a liquid level meter.
2. A hydraulic disc brake system for work braking according to claim 1, wherein a check valve is provided in the first oil supply pipe between the hydraulic pump and the pressure relay, and in the second oil supply pipe at both ends of the manual pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910829079.1A CN112443598A (en) | 2019-09-03 | 2019-09-03 | Hydraulic disc type brake system for work braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910829079.1A CN112443598A (en) | 2019-09-03 | 2019-09-03 | Hydraulic disc type brake system for work braking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112443598A true CN112443598A (en) | 2021-03-05 |
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ID=74735418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910829079.1A Withdrawn CN112443598A (en) | 2019-09-03 | 2019-09-03 | Hydraulic disc type brake system for work braking |
Country Status (1)
| Country | Link |
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| CN (1) | CN112443598A (en) |
Citations (6)
| 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 |
| JP2008232155A (en) * | 2007-03-16 | 2008-10-02 | Toyooki Kogyo Co Ltd | Hydraulic device |
| CN204752081U (en) * | 2015-07-08 | 2015-11-11 | 武汉武船重型装备工程有限责任公司 | Hydraulic plate type braker |
| CN105889367A (en) * | 2016-06-01 | 2016-08-24 | 山东科大机电科技股份有限公司 | Disk type braking device with grading braking function |
| CN107739001A (en) * | 2017-12-01 | 2018-02-27 | 江西工埠机械有限责任公司 | A kind of new type of safe is met an urgent need liquid braking device |
| CN208457064U (en) * | 2018-06-27 | 2019-02-01 | 太原科技大学 | A kind of disk brake |
-
2019
- 2019-09-03 CN CN201910829079.1A patent/CN112443598A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008232155A (en) * | 2007-03-16 | 2008-10-02 | Toyooki Kogyo Co Ltd | Hydraulic device |
| CN101033733A (en) * | 2007-04-11 | 2007-09-12 | 浙江大学 | Large and middle wind turbine digital intelligent hydraulic brake system |
| CN204752081U (en) * | 2015-07-08 | 2015-11-11 | 武汉武船重型装备工程有限责任公司 | Hydraulic plate type braker |
| CN105889367A (en) * | 2016-06-01 | 2016-08-24 | 山东科大机电科技股份有限公司 | Disk type braking device with grading braking function |
| CN107739001A (en) * | 2017-12-01 | 2018-02-27 | 江西工埠机械有限责任公司 | A kind of new type of safe is met an urgent need liquid braking device |
| CN208457064U (en) * | 2018-06-27 | 2019-02-01 | 太原科技大学 | A kind of disk brake |
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Application publication date: 20210305 |