CN105715704A - Liquid damping type braking system - Google Patents
Liquid damping type braking system Download PDFInfo
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- CN105715704A CN105715704A CN201610227237.2A CN201610227237A CN105715704A CN 105715704 A CN105715704 A CN 105715704A CN 201610227237 A CN201610227237 A CN 201610227237A CN 105715704 A CN105715704 A CN 105715704A
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- brake
- hydraulic switching
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- braking
- box
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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
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
Abstract
The invention discloses a liquid damping type braking system which comprises at least one pair of engaged gears arranged in a sealed gearbox, a gear axle penetrating out of the gearbox and connected with an external driving shaft, flowing channels arranged on the two sides of the gears, a braking liquid circulating channel which is formed in the manner that the braking liquid circulating channel penetrates out of the gearbox and is connected with a braking liquid storing box, and at least one braking switch valve arranged on the liquid inlet flowing channel of the braking liquid storing box. The purpose of decelerating braking is achieved by controlling the opening and closing states of the braking switch valve. The gearbox is structurally transformed and then applied to the braking field, the problems that a traditional friction braking material is large in abrasion, poor in braking effect, high in braking cost and the like are solved, and the phenomenon that braking fails due to heating in traditional friction braking is effectively avoided; and the liquid damping type braking system is simple in structure, low in manufacturing cost, convenient to use and maintain, easy to operate, capable of easily conducting braking, easy to control and safe and reliable in braking, any braking characteristic curve needed by equipment can be formed, and practical needs are met.
Description
Technical field
The present invention relates to braking technology field, in particular to a kind of fluid damping formula brakes.
Background technology
Brakes is very common in our productive life, and in the daily vehicles and moving mechanical equipment, brakes affects our productive life safety always.On the whole, the traditional friction type brake system being most widely used mainly is made up of brake bracket, friction element and the device that declutches, but, existing friction type brake system is typically due to that friction element structure is complicated, quickly the consuming of friction material, friction type brake mode the chronic disease of frictional heating inevitably damage the performance of friction material, the brake failure causing the resistance deficiency of frictional damping to occur, brings massive losses to our life and property.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, without material abrasion, good braking effect, fluid damping formula brakes that braking cost is low, the problem solving existing brakes.
For achieving the above object, the present invention adopts the following technical scheme that
The fluid damping formula brakes of the present invention includes damping portion and control for brake part, described damping portion includes the gear-box of a sealing being fixedly connected with apparatus body, it is arranged in described gear-box at least one pair of the relative meshed gears mated with gear-box inner chamber, the drive sprocket axle of driving gear is that brake axle stretches out gear-box and is connected with outer drive shaft or is exactly outer drive shaft, the gear-box of described relative meshed gears both sides is respectively equipped with circulation duct, article two, circulation duct has outlet to be connected with two interfaces of brake fluid reserving liquid tank on gear housing, form a brake fluid and seal circulation canal；Described brake control section is divided and is included at least one brake switch valve being arranged on circulation canal, and the control end of brake switch valve connects brake control mechanism, the open and-shut mode of brake control mechanism control brake switch valve reach the purpose of retarding braking.
Described brake switch valve is provided in the first hydraulic switching valve and second hydraulic switching valve of two circulation ducts respectively, and two hydraulic switching valves are respectively placed on the path of two circulation ducts, controls the opening and closing of two circulation ducts respectively；The structure of two hydraulic switching valves is identical, including tubular shell, tubular shell two side has an opening respectively, the circulation duct that connection is cut off, switch sliding plug is set in tubular shell, the switch of two hydraulic switching valves is sliding a radial direction through hole beyond the Great Wall, corresponding with two circulation ducts respectively, back-moving spring is set between at the bottom of the sliding plug of switch and cylinder, having on the outer end of tubular shell and drive liquid-inlet and drive liquid outlet, the driving liquid-inlet of two hydraulic switching valves and driving liquid outlet are all connected with brake control mechanism.
Described brake control mechanism is fluid pressure drive device, including the oil storage tank being sequentially connected with, oil pump, piston cylinder, the control end of piston cylinder connects brake actuator, the outfan of piston cylinder connects the first hydraulic switching valve and the oil-in of the second hydraulic switching valve by feed tube, the oil-out of the first hydraulic switching valve and the second hydraulic switching valve connects oil storage tank by drain pipe, is respectively provided with liquid inlet electromagnetic valve and liquid outlet electromagnetic valve on feed tube and drain pipe.
A kind of automobile fluid damping formula brakes of the present invention, including damping portion and control for brake part, damping portion includes a gear-box sealed, the shell of described gear-box is fixedly connected with the brake mounting seat set by car body itself, at least one pair of the relative meshed gears being arranged in described gear-box to mate with gear-box inner chamber, the drive sprocket axle of driving gear is that brake axle stretches out gear-box and is connected with outer drive shaft.The gear-box of described relative meshed gears both sides is respectively equipped with circulation duct, article two, circulation duct is had two pipeline opening of extraction on gear housing, is connected with two interfaces of brake fluid reserving liquid tank respectively by two connecting tubes, forms a brake fluid and seals circulation canal；Described brake control section is divided and is included at least one brake switch valve being arranged on circulation canal, and the control end of brake switch valve connects brake control mechanism, the open and-shut mode of brake control mechanism control brake switch valve reach the purpose of retarding braking.
Described brake switch valve is provided in the first hydraulic switching valve and second hydraulic switching valve of two circulation ducts respectively, and two hydraulic switching valves are respectively placed on the path of two circulation ducts, controls the opening and closing of two circulation ducts respectively；Two hydraulic selector valve arrangements are identical, including tubular shell, the two side of tubular shell has an opening respectively, the circulation duct that connection is cut off, switch sliding plug is set in tubular shell, the switch of two hydraulic switching valves is sliding a radial direction through hole beyond the Great Wall, corresponding with two circulation ducts respectively, back-moving spring is set between at the bottom of the sliding plug of switch and cylinder, the outer end of tubular shell has and drives liquid-inlet and driving liquid outlet, the driving liquid-inlet of two hydraulic switching valves and driving liquid outlet and be all connected with brake control mechanism.
Described brake control mechanism is fluid pressure drive device, including the oil storage tank being sequentially connected with, oil pump, piston cylinder, the brake actuator of piston cylinder is that braking is foot-operated, the outfan of piston cylinder connects the first hydraulic switching valve and the oil-in of the second hydraulic switching valve by feed tube, and the oil-out of the first hydraulic switching valve and the second hydraulic switching valve connects oil storage tank by drain pipe；Feed tube and drain pipe are respectively provided with liquid inlet electromagnetic valve and liquid outlet electromagnetic valve, as electric-controlled switch.
A kind of train fluid damping formula brakes of the present invention, including damping portion and control for brake part, described damping portion includes the gear-box of the sealing corresponding to each train wheel, gear-box is arranged on the wheel shaft of train wheel, it is connected with wheel shaft slipper seal, its shell and railway carriage bogie are fixedly connected, with at least one pair of relative meshed gears of gear-box inner chamber coupling in described gear-box, wherein the drive sprocket axle of driving gear is brake axle, brake axle is coaxial with the wheel shaft of train wheel, the gear-box of described relative meshed gears both sides is respectively equipped with circulation duct, article two, the circulation duct two fairlead road junctions on gear housing connect brake fluid reserving liquid tank by two connecting tubes, brake fluid reserving liquid tank is arranged on bogie, described brake control section divides the brake switch valve including being arranged in two circulation ducts or two connecting tubes, the control end of brake switch valve connects Train brake controlling organization, the purpose of retarding braking is reached by the open and-shut mode of Train brake controlling organization control brake switch valve.
Described train fluid damping formula brakes, the same bogie both sides of train set front and back gear-box respectively, and the gear-box of homonymy shares a brake fluid reserving liquid tank.
Described brake switch valve is provided in the first hydraulic switching valve and second hydraulic switching valve of two circulation ducts respectively, and two hydraulic switching valves are respectively placed on the path of two circulation ducts, controls the opening and closing of two circulation ducts respectively；Two hydraulic selector valve arrangements are identical, including tubular shell, the two side of tubular shell has an opening respectively, the circulation duct that connection is cut off, switch sliding plug is set in tubular shell, the switch of two hydraulic switching valves is sliding a radial direction through hole beyond the Great Wall, corresponding with two circulation ducts respectively, back-moving spring is set between at the bottom of the sliding plug of switch and cylinder, the outer end of tubular shell has and drives liquid-inlet and driving liquid outlet, the driving liquid-inlet of two hydraulic switching valves and driving liquid outlet and be all connected with fluid pressure drive device.
Oil storage tank that described fluid pressure drive device includes being sequentially connected with, electric oil pump, piston cylinder, the brake actuator of piston cylinder is train control system, the outfan of piston cylinder connects the first hydraulic switching valve and the oil-in of the second hydraulic switching valve by feed tube, and the oil-out of the first hydraulic switching valve and the second hydraulic switching valve connects oil storage tank by drain pipe；Feed tube and drain pipe are respectively provided with liquid inlet electromagnetic valve and liquid outlet electromagnetic valve, as electric-controlled switch.
Beneficial effects of the present invention: the present invention is by being applied to brake field after being reequiped by gear box structure, the material abrasion solving conventional friction braking is big, braking effect is not good enough, braking high in cost of production problem, effectively prevent conventional friction braking because of the phenomenon of the brake fade caused of generating heat simultaneously, the fluid damping formula brakes of the present invention do not have the fault of brake fade in power transmission shaft, gear pair and gearbox-case intensity enough, effective guarantee the people's lives and property safety；The fluid damping formula brake system structure of the present invention is simple, low cost of manufacture, working service are convenient, operation braking is simple and easy to control, and brake safe is reliable, and can form any braking characteristic curve needed for equipment, meets and is actually needed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the fluid damping formula brakes of external toothing of the present invention；
Fig. 2 is hydraulic switching valve and the gear box structure schematic diagram of the fluid damping formula brakes of external toothing of the present invention；
Fig. 3 is the damping portion structural representation of the fluid damping formula brakes of external toothing of the present invention；
Fig. 4 is hydraulic switching valve and the gear box structure schematic diagram of the fluid damping formula brakes of internal messing of the present invention；
Fig. 5 is the structural representation of a kind of embodiment of automobile fluid damping formula brakes of the present invention；
Fig. 6 is the structural representation of a kind of embodiment of train fluid damping formula brakes of the present invention；
Fig. 7 is hydraulic switching valve and the gear box structure schematic diagram of the fluid damping formula brakes of train external toothing of the present invention；
In figure: 1-gear-box, 2-driven gear, 3-follower shaft, 4-driving gear, 5-drive sprocket axle, 6, 7-circulation duct (6.1, 7.1-outlet), 8-brake fluid reserving liquid tank (8.1, 8.2-interface), 9-brake switch valve 9 (9a-the first hydraulic switching valve, 9b-the second hydraulic switching valve, 9.1-tubular shell, the sliding plug of 9.2-switch, 9.3-back-moving spring, 9.4-drives liquid-inlet, 9.5-drives liquid outlet, 9.6, 9.7-radial direction through hole), 10, 11-connecting tube, 12-brake control mechanism (12.1-oil storage tank, 12.2-oil pump, 12.3-piston cylinder, 12.4-feed tube, 12.5-drain pipe, 12.6-liquid inlet electromagnetic valve, 12.7-liquid outlet electromagnetic valve), 13-brake actuator, 14-automotive wheel, 15-outer drive shaft, 16-train wheel, 17-bogie, 18-brakes parking brake.
Detailed description of the invention
As shown in Figure 1, one external toothing fluid damping formula brakes of the present invention includes damping portion and control for brake part, it is characterized in that: described damping portion includes the gear-box 1 of a sealing being fixedly connected with apparatus body, it is arranged in described gear-box 1 gear of at least one pair of the relative external toothing mated with gear-box inner chamber, wherein driven gear 2 is arranged in described gear-box 1 by follower shaft 3, the drive sprocket axle 5 of driving gear 4 stretches out gear-box for brake axle and is connected with outer drive shaft or is exactly outer drive shaft, the gear-box of the gear both sides of described relative external toothing is respectively equipped with circulation duct 6, 7, article two, circulation duct 6, 7 have outlet 6.1 on gear housing, 7.1 with two interfaces 8.1 of brake fluid reserving liquid tank 8, 8.2 are connected, form a brake fluid and seal circulation canal；Described brake control section is divided and is included at least one brake switch valve 9 being arranged on circulation canal, and the control end of brake switch valve 9 connects brake control mechanism 12, brake control mechanism 12 control the open and-shut mode of brake switch valve 9 and reach the purpose of retarding braking.
The hydraulic switching valve of the fluid damping formula brakes of external toothing of the present invention and a kind of embodiment of gear box structure and damping portion is provided such as Fig. 2 and Fig. 3:
Described brake switch valve 9 adopts hydraulic selector, including the first hydraulic switching valve 9a being separately positioned in two circulation ducts 6,7 and the second hydraulic switching valve 9b, two hydraulic switching valves 9a, 9b are respectively arranged on the path of two circulation ducts 6,7, control the opening and closing of circulation duct 6,7 respectively；Two hydraulic switching valve 9a, the structure of 9b is identical, including tubular shell 9.1, the both sides of tubular shell 9.1 have an opening respectively, the circulation duct that connection is cut off, switch sliding plug 9.2 is set in tubular shell 9.1, two hydraulic switching valve 9a, the sliding plug 9.2 of the switch of 9b is respectively equipped with radial direction through hole 9.6, 9.7, with two circulation ducts 6, 7 is corresponding, back-moving spring 9.3 is set between at the bottom of the sliding plug 9.2 of switch and cylinder, the outer end of tubular shell 9.1 has driving liquid-inlet 9.4 and drives liquid outlet 9.5, two hydraulic switching valve 9a, driving liquid-inlet 9.4 and the driving liquid outlet 9.5 of 9b are all connected with brake control mechanism 12.
Hydraulic switching valve and gear box structure schematic diagram such as fluid damping formula brakes that Fig. 4 is internal messing of the present invention, similar with the structure of the fluid damping formula brakes of external toothing, it is different in that, the driven gear 2 of the inner internal messing of gear-box 1 is the ring gear being nested in gear-box, the drive sprocket axle 5 of drivewheel 4 stretches out gear-box for brake axle and is connected with outer drive shaft or is exactly outer drive shaft, and other structures such as hydraulic switching valve of the fluid damping formula brakes of internal messing are similar with the fluid damping formula brakes of external toothing.
Fig. 5 is a kind of embodiment system schematic of automobile fluid damping formula brakes:
The present embodiment includes damping portion and control for brake part, damping portion includes a gear-box 1 sealed, its shell and brake mounting seat are fixedly connected, it is arranged in described gear-box 1 gear of at least one pair of external toothing mated with gear-box inner chamber, when the relative meshed gears in gear-box is external toothing, the follower shaft 3 of driven gear 2 is arranged in described gear-box 1, and the drive sprocket axle 5 of driving gear 4 is that brake axle is coaxial with the wheel shaft of train wheel 16；When the relative meshed gears in gear-box is internal messing, driven gear 2 is the ring gear being nested in gear-box, and the drive sprocket axle 5 of drivewheel 4 stretches out gear-box for brake axle and is connected with outer drive shaft or is exactly outer drive shaft.
The gear-box of described relative meshed gears both sides is respectively equipped with circulation duct 6,7, article two, circulation duct 6,7 has two pipeline opening of extraction 6.1,7.1 to be connected with two interfaces 8.1,8.2 of brake fluid reserving liquid tank 8 respectively by two connecting tubes 10,11 on gear housing, forms a brake fluid and seals circulation canal；Adopt the hydraulic switching valve such as Fig. 2, Fig. 3 and gear box structure and damping portion, described brake switch valve 9 is the first hydraulic switching valve 9a and the second hydraulic switching valve 9b that are separately positioned on two circulation ducts 6,7, two hydraulic switching valves 9a, 9b are respectively arranged on the path of two circulation ducts 6,7, control the opening and closing of circulation duct 6,7 respectively；Two hydraulic switching valve 9a, 9b structure is identical, including tubular shell 9.1, the both sides of tubular shell 9.1 have an opening respectively, the circulation duct that connection is cut off, switch sliding plug 9.2 is set in tubular shell 9.1, two hydraulic switching valve 9a, the sliding plug 9.2 of the switch of 9b there is a radial direction through hole 9.6 respectively, 9.7, with two circulation ducts 6, 7 is corresponding, back-moving spring 9.3 is set between at the bottom of the sliding plug 9.2 of switch and cylinder, the outer end of tubular shell 9.1 has driving liquid-inlet 9.4 and drives liquid outlet 9.5, two hydraulic switching valve 9a, driving liquid-inlet 9.4 and the driving liquid outlet 9.5 of 9b are all connected with brake control mechanism 12, brake switch valve 9a is controlled by brake control mechanism 12, the open and-shut mode of 9b reaches the purpose of retarding braking.
Described brake control mechanism 12 is fluid pressure drive device, including the oil storage tank 12.1 being sequentially connected with, oil pump 12.2, piston cylinder 12.3, the brake actuator 13 of piston cylinder 12.3 is foot-operated for braking, the outfan of piston cylinder 12.3 connects the first hydraulic switching valve 9a and the oil-in of the second hydraulic switching valve 9b by feed tube 12.4, and the oil-out of the first hydraulic switching valve 9a and the second hydraulic switching valve 9b connects oil storage tank 12.1 by drain pipe 12.5；Feed tube 12.4 and drain pipe 12.5 are respectively provided with liquid inlet electromagnetic valve 12.6 and liquid outlet electromagnetic valve 12.7, as electric-controlled switch.
Fig. 6 provides the embodiment of a kind of train fluid damping formula brakes:
This train fluid damping formula brakes includes damping portion and control for brake part, described damping portion includes the gear-box 1 of the sealing corresponding to each train wheel, gear-box 1 is arranged on the wheel shaft of train wheel 16, it is connected with wheel shaft slipper seal, its shell and railway carriage bogie are fixedly connected, when the relative meshed gears in gear-box is external toothing, the follower shaft 3 of driven gear 2 is arranged in described gear-box 1, and the drive sprocket axle 5 of driving gear 4 is that brake axle is coaxial with the wheel shaft of train wheel 16；When the relative meshed gears in gear-box is internal messing, driven gear 2 is the ring gear being nested in gear-box, and the drive sprocket axle 5 of drivewheel 4 stretches out gear-box for brake axle and is connected with outer drive shaft or is exactly outer drive shaft.
The gear-box of described relative meshed gears both sides is respectively equipped with circulation duct 6, 7, article two, circulation duct 6, 7 two fairlead road junctions 6.1 on gear housing, 7.1 pass through two connecting tubes 10, 11 connect brake fluid reserving liquid tank 8, brake fluid reserving liquid tank 8 is arranged on bogie 17, described brake control section is divided and is included being arranged on two circulation ducts 6, 7 or two connecting tubes 10, brake switch valve 9 on 11, the control end of brake switch valve 9 connects Train brake controlling organization 12, controlled the open and-shut mode of brake switch valve 9 by Train brake controlling organization 12 and reach the purpose of retarding braking.
Described train same bogie 17 both sides set front and back gear-box respectively, and the gear-box of homonymy shares a brake fluid reserving liquid tank.
Fig. 7 is train external toothing hydraulic switching valve and gear box structure schematic diagram:
Brake switch valve 9 adopts hydraulic selector, including the first hydraulic switching valve 9a and the second hydraulic switching valve 9b that are arranged on two circulation ducts 6,7, two hydraulic switching valves 9a, 9b are respectively placed on the path of two circulation ducts 6,7, control the opening and closing of two circulation ducts 6,7 respectively；Two hydraulic switching valve 9a, 9b structures are identical, and driving liquid-inlet 9.4 and the driving liquid outlet 9.5 of two hydraulic switching valves 9a, 9b are all connected with fluid pressure drive device 12；The original state of train two hydraulic switching valves 9a, 9b is contrary with the hydraulic switching valve of automobile, and original state is for closing.
As shown in Figure 5 and Figure 6, described brake control mechanism 12 is fluid pressure drive device, including the oil storage tank 12.1 being sequentially connected with, electric oil pump 12.2, piston cylinder 12.3, piston cylinder 12.3 is controlled by brake actuator 13, the outfan of piston cylinder 12.3 connects the first hydraulic switching valve 9a and the oil-in of the second hydraulic switching valve 9b by feed tube 12.4, and the oil-out of the first hydraulic switching valve 9a and the second hydraulic switching valve 9b connects oil storage tank 12.1 by drain pipe 12.5；Feed tube 12.4 and drain pipe 12.5 are respectively provided with liquid inlet electromagnetic valve 12.6 and liquid outlet electromagnetic valve 12.7, as electric-controlled switch.
The retarding braking process of automobile fluid damping formula brakes of the present invention is as follows:
Time properly functioning, first hydraulic switching valve 9a and the second hydraulic switching valve 9b is in open mode, when automobile front driving run into emergency need brake time, manually step on brake actuator 13, namely braking is foot-operated, emergency brake signal is exported to liquid inlet electromagnetic valve 12.6 and liquid outlet electromagnetic valve 12.7 by car running computer (ECU), liquid inlet electromagnetic valve 12.6 is opened, liquid outlet electromagnetic valve 12.7 is closed, driving liquid feed liquor to enter the first hydraulic switching valve 9a, the first hydraulic switching valve 9a aperture is gradually reduced until closedown.Owing to the first hydraulic switching valve 9a closes, circulating of brake fluid is obstructed, the pressure discharging the sealing circulation canal of the brake fluid in gear-box gradually rises, the counteracting force that gear page when gear engagement rotates is subject to incrementally increases, gear rotational speed is slack-off gradually, Automobile shaft 15 rotating speed reduces, until stopping.Braking during reversing, the second hydraulic switching valve 9b closes effect, and its principle is ibid.
In actual application, owing to automobile normal forward duration is longer, consider that brake fluid long-time circulation in brake fluid circulation canal can cause the factors such as brake fluid temperature rising, brake fluid that can be corresponding when automobile normal forward enters and arranges electromagnetic valve in the connecting tube of gear-box, this electromagnetic valve is controlled by car running computer (ECU), when automobile normal forward, this closed electromagnetic valve, thus controlling brake fluid do not enter circulation in gear-box in automobile normal forward situation, it is finally reached the impact avoiding the long-time rotation flowing of brake fluid to bring；When running into emergency and needing to brake, this electromagnetic valve is controlled by car running computer (ECU), and this electromagnetic valve is opened, and brake fluid enters gear-box, by stoping brake axle to rotate the resistance circulated of the brake fluid in gear-box, and then reach the purpose of braking.
The realization of anti-lock braking system (ABS): automobile fluid damping formula brakes of the present invention is also by being respectively provided with liquid inlet electromagnetic valve 12.6 on feed tube 12.4 and drain pipe 12.5 and liquid outlet electromagnetic valve 12.7 realizes, electrodynamic pump 12.2 it is provided with between piston cylinder 12.3 and fluid reservoir 12.1, when car speed drops to setting value, car running computer (ECU) sends instruction, close liquid inlet electromagnetic valve 12.6, cut off the entrance driving liquid, open driving liquid liquid outlet electromagnetic valve 12.7 simultaneously, by the first hydraulic switching valve 9a, the driving liquid of the second hydraulic switching valve 9b intracavity drains into driving liquid fluid reservoir 12.1；Meanwhile, the first hydraulic switching valve 9a and the second hydraulic switching valve 9b opens respectively under the effect of back-moving spring, and braking disappears immediately.
Train speed reducing braking is similar with car deceleration braking principle.
The train fluid damping formula brakes of the present invention and automobile fluid damping formula brakes be distinctive in that following some: arranging of (1) hydraulic switching valve, contrary with automobile, the original state of train two hydraulic switching valves 9a, 9b is for closing.When train is properly functioning, brake control mechanism 12 controls the first hydraulic switching valve 9a and the second hydraulic switching valve 9b and be in open mode；When needs retarding braking, brake actuator (13) i.e. train control system sends braking instruction, start operation: close liquid inlet electromagnetic valve 12.6, cut off the entrance driving liquid, open driving liquid liquid outlet electromagnetic valve 12.7 simultaneously, the driving liquid of the first hydraulic switching valve 9a, the second hydraulic switching valve 9b intracavity is drained into driving liquid fluid reservoir 12.1；Meanwhile, the first hydraulic switching valve 9a and the second hydraulic switching valve 9b resets respectively under the effect of back-moving spring, and the first hydraulic switching valve 9a and the second hydraulic switching valve 9b closes, it is achieved braking.(2) arranging at brake fluid reserving liquid tank 8, in train fluid damping formula brakes, the gear-box of the same bogie homonymy of each column train shares a brake fluid reserving liquid tank 8.(3) when train carriage needs individually to park for a long time, operable braking parking brake 18 realizes braking purpose.
The fluid damping formula brakes of the present invention can be as the case may be, the process progressively being decreased up to closedown by standard-sized sheet of the first hydraulic switching valve 9a and the second hydraulic switching valve 9b is controlled by piston cylinder 12.3, thus controlling the retro-speed of brake axle, any braking characteristic curve needed for equipment can be formed, meet and be actually needed.
Embodiment above describes the ultimate principle of the present invention and principal character and advantages of the present invention.Skilled person will appreciate that of the industry, the present invention is applied to brake field after being improved by gear pump structure, it is based on gear pump in pump apoplexy due to endogenous wind simple in construction, low cost of manufacture, good braking effect, have a extensive future, there is the very strong market competitiveness, but protection scope of the present invention is not restricted to the described embodiments, the simple transformation that pump class as similar in other structures is done based on principles of the invention and method, the structure of brake switch valve and position, the concrete mode of brake control mechanism can arbitrarily be selected, if employing principles of the invention, fluid circulation is utilized to be obstructed, resistance is transformed into brake force and reaches the effect of braking, under the premise of the spirit and scope total without departing from the present invention, the present invention also has various changes and modifications, these changes and improvements broadly fall in the claimed scope of the invention.
Claims (10)
1. a fluid damping formula brakes, including damping portion and control for brake part, it is characterized in that: described damping portion includes the gear-box (1) of a sealing being fixedly connected with apparatus body, it is arranged in described gear-box (1) at least one pair of the relative meshed gears mated with gear-box inner chamber, the drive sprocket axle (5) of driving gear (4) stretches out gear-box for brake axle and is connected with outer drive shaft or is exactly outer drive shaft, the gear-box of described relative meshed gears both sides is respectively equipped with circulation duct (6), (7), article two, circulation duct (6), (7) on gear housing, there is outlet (6.1), (7.1) with two interfaces (8.1) of brake fluid reserving liquid tank (8), (8.2) it is connected, form a brake fluid and seal circulation canal；Described brake control section is divided and is included at least one brake switch valve (9) being arranged on circulation canal, the control end of brake switch valve (9) connects brake control mechanism (12), the open and-shut mode of brake control mechanism (12) control brake switch valve (9) reach the purpose of retarding braking.
2. fluid damping formula brakes according to claim 1, it is characterized in that: described brake switch valve (9) is provided in two circulation ducts (6), first hydraulic switching valve (9a) of (7) and the second hydraulic switching valve (9b) respectively, two hydraulic switching valves (9a), (9b) are respectively placed on the path of two circulation ducts (6), (7), control the opening and closing of two circulation ducts (6), (7) respectively；Two hydraulic switching valves (9a), (9b) structure is identical, hydraulic switching valve includes tubular shell (9.1), tubular shell (9.1) two side has an opening respectively, the circulation duct that connection is cut off, switch sliding plug (9.2) is set in tubular shell (9.1), the sliding plug (9.2) of the switch of two hydraulic switching valves there is a radial direction through hole (9.6), (9.7), respectively with two circulation ducts (6), (7) corresponding, back-moving spring (9.3) is set between at the bottom of the sliding plug (9.2) of switch and cylinder, the outer end of tubular shell (9.1) has driving liquid-inlet (9.4) and drives liquid outlet (9.5), two hydraulic switching valves (9a), (9b) driving liquid-inlet (9.4) and driving liquid outlet (9.5) are all connected with brake control mechanism (12).
3. fluid damping formula brakes according to claim 1 and 2, it is characterized in that: described brake control mechanism (12) is fluid pressure drive device, including the oil storage tank (12.1) being sequentially connected with, oil pump (12.2), piston cylinder (12.3), the control end of piston cylinder (12.3) connects brake actuator (13), the outfan of piston cylinder (12.3) connects the first hydraulic switching valve (9a) and the oil-in of the second hydraulic switching valve (9b) by feed tube (12.4), the oil-out of the first hydraulic switching valve (9a) and the second hydraulic switching valve (9b) connects oil storage tank (12.1) by drain pipe (12.5), feed tube (12.4) and drain pipe (12.5) are respectively provided with liquid inlet electromagnetic valve (12.6) and liquid outlet electromagnetic valve (12.7).
4. an automobile fluid damping formula brakes, including damping portion and control for brake part, it is characterized in that: damping portion includes a gear-box (1) sealed, the shell of described gear-box is fixedly connected with the brake mounting seat set by car body itself, it is arranged in described gear-box (1) at least one pair of the relative meshed gears mated with gear-box inner chamber, the drive sprocket axle (5) of driving gear (4) stretches out gear-box for brake axle and is connected with outer drive shaft (15), and (14) are automotive wheels.The gear-box of described relative meshed gears both sides is respectively equipped with circulation duct (6), (7), article two, there are extraction two pipeline opening (6.1), (7.1) in circulation duct (6), (7) on gear housing, it is connected with two interfaces (8.1), (8.2) of brake fluid reserving liquid tank (8) respectively by two connecting tubes (10), (11), forms a brake fluid and seal circulation canal；Described brake control section is divided and is included at least one brake switch valve (9) being arranged on circulation canal, the control end of brake switch valve (9) connects brake control mechanism (12), the open and-shut mode of brake control mechanism (12) control brake switch valve (9) reach the purpose of retarding braking.
5. automobile fluid damping formula brakes according to claim 4, it is characterized in that: described brake switch valve (9) is provided in two circulation ducts (6), first hydraulic switching valve (9a) of (7) and the second hydraulic switching valve (9b) respectively, two hydraulic switching valves (9a), (9b) are respectively placed on the path of two circulation ducts (6), (7), control the opening and closing of two circulation ducts (6), (7) respectively；Two hydraulic switching valves (9a), (9b) structure is identical, including tubular shell (9.1), the two side of tubular shell (9.1) has an opening respectively, the circulation duct that connection is cut off, switch sliding plug (9.2) is set in tubular shell (9.1), two hydraulic switching valves (9a), (9b) the sliding plug (9.2) of switch there is a radial direction through hole (9.6), (9.7), respectively with two circulation ducts (6), (7) corresponding, back-moving spring (9.3) is set between at the bottom of the sliding plug (9.2) of switch and cylinder, the outer end of tubular shell (9.1) has driving liquid-inlet (9.4) and drives liquid outlet (9.5), two hydraulic switching valves (9a), (9b) driving liquid-inlet (9.4) and driving liquid export (9.5) and are all connected with brake control mechanism (12).
6. automobile fluid damping formula brakes according to claim 5, it is characterized in that: described brake control mechanism (12) is fluid pressure drive device, including the oil storage tank (12.1) being sequentially connected with, oil pump (12.2), piston cylinder (12.3), the brake actuator (13) of piston cylinder (12.3) is that braking is foot-operated, the outfan of piston cylinder (12.3) connects the first hydraulic switching valve (9a) and the oil-in of the second hydraulic switching valve (9b) by feed tube (12.4), the oil-out of the first hydraulic switching valve (9a) and the second hydraulic switching valve (9b) connects oil storage tank (12.1) by drain pipe (12.5)；Feed tube (12.4) and drain pipe (12.5) are respectively provided with liquid inlet electromagnetic valve (12.6) and liquid outlet electromagnetic valve (12.7), as electric-controlled switch.
7. a train fluid damping formula brakes, including damping portion and control for brake part, it is characterized in that: described damping portion includes the gear-box (1) of the sealing corresponding to each train wheel, gear-box (1) is arranged on the wheel shaft of train wheel (16), it is connected with wheel shaft slipper seal, its shell and railway carriage bogie are fixedly connected, with at least one pair of relative meshed gears of gear-box inner chamber coupling in described gear-box (1), wherein the drive sprocket axle (5) of driving gear (4) is brake axle, brake axle is coaxial with the wheel shaft of train wheel, the gear-box of described relative meshed gears both sides is respectively equipped with circulation duct (6), (7), article two, circulation duct (6), (7) two connecting tubes (10) are passed through at two fairlead road junctions on gear housing, (11) brake fluid reserving liquid tank (8) is connected, brake fluid reserving liquid tank (8) is arranged on bogie (17), described brake control section is divided and is included being arranged on two circulation ducts (6), (7) or two connecting tubes (10), (11) the brake switch valve (9) on, the control end of brake switch valve (9) connects Train brake controlling organization (12), the purpose of retarding braking is reached by the open and-shut mode of Train brake controlling organization (12) control brake switch valve (9).
8. train fluid damping formula brakes according to claim 7, it is characterised in that: described train same bogie (17) both sides set front and back gear-box respectively, and the gear-box of homonymy shares a brake fluid reserving liquid tank (8).
9. the train fluid damping formula brakes according to claim 7 or 8, it is characterized in that: described brake switch valve (9) is provided in two circulation ducts (6), first hydraulic switching valve (9a) of (7) and the second hydraulic switching valve (9b) respectively, two hydraulic switching valves (9a), (9b) are respectively placed on the path of two circulation ducts (6), (7), control the opening and closing of two circulation ducts (6), (7) respectively；Two hydraulic switching valves (9a), (9b) structure is identical, including tubular shell (9.1), the two side of tubular shell (9.1) has an opening respectively, the circulation duct that connection is cut off, switch sliding plug (9.2) is set in tubular shell (9.1), the sliding plug (9.2) of the switch of two hydraulic switching valves there is a radial direction through hole (9.6), (9.7), respectively with two circulation ducts (6), (7) corresponding, back-moving spring (9.3) is set between at the bottom of the sliding plug (9.2) of switch and cylinder, the outer end of tubular shell (9.1) has driving liquid-inlet (9.4) and drives liquid outlet (9.5), two hydraulic switching valves (9a), (9b) driving liquid-inlet (9.4) and driving liquid export (9.5) and are all connected with fluid pressure drive device (12).
10. train fluid damping formula brakes according to claim 9, it is characterized in that: described fluid pressure drive device (12) includes the oil storage tank (12.1) being sequentially connected with, electric oil pump (12.2), piston cylinder (12.3), the brake actuator (13) of piston cylinder (12.3) is train control system, the outfan of piston cylinder (12.3) connects the first hydraulic switching valve (9a) and the oil-in of the second hydraulic switching valve (9b) by feed tube (12.4), the oil-out of the first hydraulic switching valve (9a) and the second hydraulic switching valve (9b) connects oil storage tank (12.1) by drain pipe (12.5)；Feed tube (12.4) and drain pipe (12.5) are respectively provided with liquid inlet electromagnetic valve (12.6) and liquid outlet electromagnetic valve (12.7), as electric-controlled switch.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610227237.2A CN105715704B (en) | 2016-04-13 | 2016-04-13 | Fluid damping formula brakes |
| JP2018552238A JP2019513953A (en) | 2016-04-13 | 2017-04-07 | Liquid braking brake system |
| KR1020187032242A KR102169602B1 (en) | 2016-04-13 | 2017-04-07 | Liquid damping type brake system |
| PCT/CN2017/079673 WO2017177858A1 (en) | 2016-04-13 | 2017-04-07 | Liquid damping type braking system |
| EP17781834.1A EP3444496A4 (en) | 2016-04-13 | 2017-04-07 | Liquid damping type braking system |
| US16/159,741 US10794438B2 (en) | 2016-04-13 | 2018-10-15 | Liquid-resistance braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610227237.2A CN105715704B (en) | 2016-04-13 | 2016-04-13 | Fluid damping formula brakes |
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| Publication Number | Publication Date |
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| CN105715704A true CN105715704A (en) | 2016-06-29 |
| CN105715704B CN105715704B (en) | 2017-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610227237.2A Active CN105715704B (en) | 2016-04-13 | 2016-04-13 | Fluid damping formula brakes |
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| Country | Link |
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| CN (1) | CN105715704B (en) |
Cited By (3)
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| WO2017177858A1 (en) * | 2016-04-13 | 2017-10-19 | 曾义波 | Liquid damping type braking system |
| CN108506375A (en) * | 2018-06-20 | 2018-09-07 | 中国科学院光电技术研究所 | A kind of disc type brake and hydraulic cushion brake united large aperture telescope pitch axis safety arrestment structure |
| CN111043186A (en) * | 2020-02-22 | 2020-04-21 | 富奥汽车零部件股份有限公司 | Pump type magnetorheological fluid retarder |
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|---|---|
| CN105715704B (en) | 2017-12-05 |
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