CN204553629U - A kind of brake rigging used for rail vehicle - Google Patents

Abstract

The utility model relates to a kind of brake rigging used for rail vehicle, brake cylinder and hydraulic braking clamp are sealedly connected on the two ends of cylinder body respectively, the cylinder piston shaft sealing of brake cylinder is connected on cylinder body and also can moves axially, and has grease chamber, work oil duct and compensate oil duct in cylinder body; Oil piston seal is arranged in work oil duct and also can moves axially, and guide pad is arranged on one end of cylinder piston axle and stretches in oily piston, and oily piston, guide pad are connected with cylinder piston shaft by bearing pin, and piston valve base sealing is arranged in oily piston; The work oil duct of cylinder body communicates with the oil duct in hydraulic braking clamp, compensation oil duct when release of brake state communicates with work oil duct through the middle oil duct between guide pad and piston valve base and the valve opening on piston valve base, and guide pad during braking and piston valve base seal and connect and close middle oil duct.The utility model structure is simple, compact, can convert air pressure to oil liquid pressure, braking high efficient and reliable.

Description

A kind of brake rigging used for rail vehicle

Technical field

The utility model relates to a kind of brake rigging used for rail vehicle, belongs to rail vehicle brake rigging technical field.

Background technique

Brake rigging is the critical component of track traffic, is the important guarantee of safe train operation, produces braking force by brake clamp, promotes brake pad and compresses brake disc, train momentum is changed into the frictional heat energy of disc, realize the Brake stop of train.Existing brake rigging usually adopts pure air damping or adopts pure hydraulic braking.Pure air damping by being filled with pressurized air in brake cylinder, and pressed gas promotes piston, braking force is delivered on clamp transmission part or power amplifier unit by piston shaft.Because pure air damping needs larger braking moment, when gas pressure is certain, need the braking leverage that design is large as far as possible, common method has two kinds: a kind of is when braking cylinder diameter and being constant, by at piston axle head attachment force enlarger, as cam mechanism, eccentric shaft mechanism etc., the braking force exported by brake cylinder passes to brake pad after amplifying again, brake pad is made to compress brake disc, a kind of brake rigging disclosed in European patent document EP0732247A2, the internal structure more complicated of this kind of device, working principle is more complicated also, higher to the reliability requirement of each critical component, and master cylinder comprises service braking cylinder and Parking Brake Cylinders, parking brake cylinder interior is also provided with comparatively complicated hand relieving mechanism.Another kind of mode changes brake cylinder internal structure, braking force is amplified by arranging wedge-shaped blocks etc. in brake cylinder, the master cylinder of brake clamp unit disclosed in Chinese patent literature CN202790244U, the inner more complicated of brake cylinder of this kind of structure, because brake cylinder inner space is limited, higher to the requirement on machining accuracy of each component, and be not easy to safeguard.

Train can be furnished with source of the gas usually, but not necessarily can be furnished with the hydraulic system such as hydraulic station or oil hydraulic cylinder, therefore for the brake rigging of pure hydraulic pressure, just need to be furnished with the hydraulic system needed for a set of hydraulic braking ON TRAINS, hydraulic system provides pressure oil, by oil pipe, pressure oil is filled with in the piston cavity of hydraulic braking clamp, pressure oil promotes piston, thus drive brake lining to compress brake disc, realize Brake stop, as Chinese patent asks that lower CN201071893Y discloses a kind of hydraulic braking clamp, by oil pipe, pressure oil is filled with in the piston cavity of brake clamp from hydraulic equipment.Meanwhile, because rail vehicle braking needs larger braking moment, exerting pressure and in reflux course, can produce pulsating pressure in oil pipe at pressure oil, so easily cause the leakage of oil connection place fluid, and reduces the reliability of braking.

Summary of the invention

It is simple, compact that the utility model object is to provide a kind of structure, can convert air pressure to oil liquid pressure, the one brake rigging used for rail vehicle of braking high efficient and reliable.

The utility model is the technological scheme achieved the above object: a kind of brake rigging used for rail vehicle, it is characterized in that: comprise brake cylinder, brake cylinder and hydraulic braking clamp, described brake cylinder comprises cylinder body and oily piston assembly, described brake cylinder and hydraulic braking clamp are sealedly connected on the two ends of cylinder body respectively, the cylinder piston shaft sealing of brake cylinder is connected on cylinder body and also can moves axially, have grease chamber, work oil duct in cylinder body and compensate oil duct, the oil duct junction compensating oil duct top communicates with grease chamber; Described oily piston assembly comprises oily piston, guide pad and the piston valve base with valve opening, oil piston seal is arranged in work oil duct and also can moves axially, guide pad is arranged on one end of cylinder piston axle and stretches in oily piston, oily piston, guide pad are connected with cylinder piston shaft by bearing pin, bearing pin is positioned at the slotted hole of oily piston, and piston valve base sealing is arranged in oily piston; The work oil duct of described cylinder body communicates with the oil duct in hydraulic braking clamp, compensation oil duct when release of brake state communicates with work oil duct through the middle oil duct between guide pad and piston valve base and the valve opening on piston valve base, and guide pad during braking and piston valve base seal and connect and close middle oil duct.

Described brake cylinder also comprises cylinder block, lamina membranacea chamber component, cylinder piston, cylinder piston axle Returnning spring, stopping brake spring and piston shaft guide holder, the front end of cylinder block and the cylinder body of brake cylinder are tightly connected, the back-end sealing of cylinder block is connected with cylinder back cover, the sealing of lamina membranacea chamber component is arranged on cylinder back cover, described piston shaft guide holder sealing is fixed on cylinder body, cylinder piston shaft sealing is connected on cylinder piston and piston shaft guide holder and also can moves axially, cylinder piston sealing is arranged in cylinder block, cylinder piston axle is provided with stopping seat, the other end of cylinder piston axle has spring seat, cylinder piston axle is relative with the driving member of lamina membranacea chamber component, the two ends being enclosed within the cylinder piston axle Returnning spring on cylinder piston axle withstand on cylinder piston and spring seat respectively, the arranged outside of lamina membranacea chamber component has stopping brake spring, the two ends of stopping brake spring withstand on cylinder block and cylinder piston respectively, cylinder back cover is provided with gas joint, the pore of gas joint communicates with the lamina membranacea air chamber A of lamina membranacea chamber component.

Described cylinder block inwall is provided with and carries out spacing bulge loop to cylinder piston, and described cylinder body is provided with and carries out spacing stop block to cylinder piston.

Described lamina membranacea chamber component comprise tubular lamina membranacea room main body, be arranged on lamina membranacea connecting plate in the main body of lamina membranacea room and flexible diaphragm, lamina membranacea room body seal is connected on cylinder back cover, one end of flexible diaphragm is fixed on lamina membranacea connecting plate, the other end is fixed in the main body of lamina membranacea room, lamina membranacea connecting plate is the driving member of lamina membranacea chamber component, and the lamina membranacea air chamber A that pore and lamina membranacea room main body, lamina membranacea connecting plate and the flexible diaphragm of the gas joint on cylinder back cover are formed communicates.

Described lamina membranacea room main body has step, lamina membranacea room main body internal fixtion has lamina membranacea side cover, the guide plate of tubular is also fixed with in lamina membranacea connecting plate, guide plate has annular groove, one end of flexible diaphragm is fixed between lamina membranacea connecting plate and the annular groove of guide plate, the other end is fixed on lamina membranacea side cover and between the step of lamina membranacea room main body, and flexible diaphragm is positioned at the periphery of guide plate, guide plate is fixedly connected with push rod, cylinder piston axle sleeve has one end of spring seat to offer pilot hole, and the push shaft of push rod penetrates in the pilot hole of cylinder piston axle.

Also comprise stroke measurement assembly, described stroke measurement assembly comprises working stroke plate, stroke display bar and stroke counter, working stroke plate is arranged on the stopping seat of cylinder piston axle, the sealing of stroke display bar is arranged on cylinder body and also can moves axially, stroke reseting spring sleeve is on stroke display bar and its two ends withstand on the boss of cylinder body and stroke display bar respectively, working stroke plate when cylinder piston axle has a working stroke to be crimped on stroke display bar and to promote stroke display bar and moves axially, the stroke of stroke counter to stroke display bar be arranged on cylinder body measures.

The axis of described stroke display bar and the axis being parallel of cylinder piston axle, the sealing of stroke display bar is arranged on guide sleeve, guide sleeve sealing is arranged on cylinder body, backing plate is arranged on the outside of cylinder body, be arranged on stroke display bar by fastening piece by backing plate, the two ends of stroke Returnning spring withstand on the boss of guide sleeve and the boss of stroke display bar respectively.

Described piston shaft guide holder has flange seat, flange seat sealing is arranged on cylinder body, be provided with at least two airtight seal of gas seal and the seal ring for sealing fluid between piston shaft guide holder and cylinder piston axle, the exhaust port that piston shaft guide holder is provided with between two airtight seal communicates with the air outlet flue on cylinder body.

Also comprise hand relieving mechanism, described hand relieving mechanism comprises pull bar, pull release spring, lever and one-way valve, the pressure release oil duct communicated with grease chamber is also provided with in described cylinder body, cylinder body is provided with one-way valve pressure release oil duct bottom oil duct junction at the oil duct junction place on pressure release oil duct top communicates with the work oil duct of oily piston front portion, oil tank cover sealing with pouring orifice is arranged on cylinder body, tie-rod sealing is arranged in fuel tank cap and also can moves, the two ends pulling release spring be enclosed within pull bar withstand on the bearing of fuel tank cap and pull bar respectively, the both sides of lever are hinged on the bearing of pull bar and the lever seat of fuel tank cap respectively, one end of lever and keying for control one-way valve relative with one-way valve.

Described fuel tank cap is provided with drag link sleeve, tie-rod sealing is arranged on drag link sleeve and also can moves, pull bar bottom is provided with bearing, the two ends pulling release spring withstand on the bearing of drag link sleeve and pull bar respectively, one end of dust-proof cover is arranged on pull bar, the other end is arranged on drag link sleeve, fuel tank cap is provided with alleviation rope support.

Described one-way valve comprises nut cap, valve follower, valve seat and valve spring, nut cap is screwed on cylinder body and also seals with seal ring and cylinder body, the oil duct that valve follower penetrates on nut cap is interior and relative with valve seat, the valve spring be arranged on cylinder body withstands on and valve seat makes valve seat connect with the lower end of nut cap seal, and valve follower when pulling alleviation presses down valve seat makes pressure release oil duct communicate with the oil duct on nut cap.

Described piston valve base is made up of valve base and elastic component, and valve base is metal construction, and the periphery of valve base is connected with oily piston seal by seal ring, and the periphery of oily piston is by the work oil channel sealing of seal ring and cylinder body.

One end of described cylinder piston axle has connection shaft part, and the guide pad in tubular covers on the connection shaft part of cylinder piston axle and by pinned connection, and stifled being enclosed within oily piston of latch blocks bearing pin place.

Described hydraulic braking clamp comprises bracket body, clamp piston, clearance adjuster and brake pad, the side of described bracket body is sealedly connected on cylinder body, opposite side is provided with two parallel relative clamp fitting seats, main oil gallery in bracket body communicates with point oil duct in the work oil duct in cylinder body and clamp fitting seat, can move axially in the clamp piston hole that clamp piston seal is arranged on clamp fitting seat, brake pad is connected with clamp piston, and point oil duct in clamp fitting seat communicates with the clamp oil pocket between clamp piston and clamp fitting seat, described clearance adjuster comprises reseting sleeve, returning spring and reset pad, fixing rod and Rectangular Spring, clamp piston is provided with mounting hole towards clamp oil pocket side, reseting sleeve is arranged in mounting hole, reset pad is arranged on clamp piston, on the outer shaft shoulder that the two ends being enclosed within the returning spring on reseting sleeve withstand on reseting sleeve respectively and reset pad, between reset pad and reseting sleeve, there is primary clearance δ, fixing rod to be arranged on clamp fitting seat and to penetrate in clamp piston through reset pad and reseting sleeve, Rectangular Spring is connected with fixing rod interference, connect with the shaft shoulder in reseting sleeve in the axis hole that Rectangular Spring is arranged on reseting sleeve.

Described clamp fitting seat is arranged on bracket body by fastening piece, clamp fitting seat is provided with and the fixing pin of clamp piston axes line parallel and loose pin, the lock screw be arranged on clamp fitting seat withstands in the locked groove of loose pin, and brake pad supports or is connected on fixing pin and loose pin and also can move.

The side that described clamp piston stretches out clamp piston hole is provided with clamp piston plate, and brake pad is connected with clamp piston plate, and the two ends of clamp dust-break cover to be arranged on respectively on clamp piston and clamp fitting seat and to cover on clamp piston hole place.

Described fixing rod is T-shaped bar, and fixing rod cover, through the step hole of fixing rod cover, is arranged on clamp fitting seat by collar by fixing rod.

Described bracket body is provided with air flue, and described air flue communicates with main oil gallery, and the outlet valve be arranged on bracket body gets lodged in the outer end of air flue; Described clamp fitting seat is also provided with outlet valve, and outlet valve gets lodged in the oil drainage hole outer end communicated with clamp oil pocket.

Described bracket body have 6 bolt mounting holes and 2 positioning pin holes.

Be provided with grease chamber, work oil duct in cylinder body of the present utility model and compensate oil duct, oil piston to be arranged in work oil duct and to be connected with the cylinder piston axle of brake cylinder, the oil duct that works during relieved state communicates with grease chamber by compensating oil duct, normal pressure fluid in grease chamber enters work oil duct, makes to be filled with fluid in the work oil duct of oily piston front portion.During braking, braking force is produced by being filled with pressurized air in brake cylinder, promote the motion of cylinder piston axle, oil duct and grease chamber in the middle of cylinder piston axle cuts off also promote oily piston, normal pressure fluid in oil piston advances forward extruding work oil duct, make the oil liquid pressure in work oil duct raise and be transformed into pressure oil, pressure oil enters the internal galleries of hydraulic braking clamp by the work oil duct of cylinder body, thus the brake pad promoted on hydraulic braking clamp compresses brake disc, realize train braking.The utility model provides braking force to promote oily piston by brake cylinder, realizes empty oily conversion function, converts air pressure to oil liquid pressure, realized the amplification of braking force by fluid supercharging in cylinder body, thus obtains larger braking leverage.The utility model brake rigging energy attainment brake hydraulic pressure function, compact structure, braking is efficient, and do not need on rail vehicle is hydraulic braking clamp outfit hydraulic system separately simultaneously, simplifies the corollary system on rail vehicle.Compared with pure air damping, the utility model brake rigging directly converts air pressure to higher oil liquid pressure by the motion of piston, without the need to the force amplificatory structure adopting eccentric shaft, wedge-shaped blocks etc. complicated, structure and working principle is simple, retardation efficiency and reliability high.Compared with pure hydraulic braking, brake rigging of the present utility model carries fuel tank, can the normal pressure fluid in fuel tank be converted to pressure oil, and enter in hydraulic braking clamp by internal galleries, without the need to optional equipment hydraulic system and oil pipe etc., applicability is better, and braking is rapider, convenient, also can avoid the leakage of fluid simultaneously, improve the reliability of braking and the Security of vehicle operating.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.

Fig. 1 is the structural representation of a kind of brake rigging used for rail vehicle of the utility model.

Fig. 2 is the plan structure schematic diagram of Fig. 1.

Fig. 3 is the structural representation of the utility model brake cylinder and brake cylinder.

Fig. 4 is the A-A sectional structure schematic diagram of Fig. 3.

Fig. 5 is the structural representation of lamina membranacea chamber component of the present utility model.

Fig. 6 is the structural representation of the utility model cylinder piston axle and oily piston.

Fig. 7 is the structural representation of the utility model cylinder body.

Fig. 8 is the sectional structure schematic diagram of the B-B of Fig. 7.

Fig. 9 is that the C of Fig. 8 is to TV structure schematic diagram.

Figure 10 is the structural representation of the utility model hand relieving mechanism.

Figure 11 is the D-D sectional structure schematic diagram of Figure 10.

Figure 12 is the plan structure schematic diagram of Figure 10.

Figure 13 is the I place structure for amplifying schematic diagram of Fig. 4.

Figure 14 is the structural representation of the utility model hydraulic braking clamp.

Figure 15 is the plan structure schematic diagram of Figure 14.

Figure 16 is the structural representation of the utility model clamp fitting seat.

Figure 17 is the E-E sectional structure schematic diagram of Figure 16.

Figure 18 is the II place structure for amplifying schematic diagram of Figure 17.

Wherein: 1-brake cylinder, 1-1-cylinder back cover, 1-2-cylinder block, 1-21-bulge loop, 1-22-the second pore, 1-23-the first pore, 1-3-stopping brake spring, 1-4-lamina membranacea chamber component, 1-41-lamina membranacea connecting plate, 1-42-lamina membranacea room main body, 1-43-lamina membranacea side cover, 1-44-flexible diaphragm, 1-45-push rod, 1-46-guide plate, 1-5-cylinder piston, 1-61-cylinder piston axle, 1-611-stopping seat, 1-612-mounting hole, 1-62-piston shaft guide holder, 1-621-exhaust port, 1-622-flange seat, 1-63-ram seat, 1-64-seal ring, 1-65-airtight seal, 1-7-cylinder piston seal ring, 1-8-piston sleeve, 1-9-cylinder piston axle Returnning spring, 1-10-spring seat, 1-11-gas joint, 1-12-stroke measurement assembly, 1-121-working stroke plate, 1-122-stroke display bar, 1-123-backing plate, 1-124-guide sleeve, 1-125-stroke Returnning spring, 1-126-stroke counter, 2-brake cylinder, 2-1-hand relieving mechanism, 2-11-alleviation rope support, 2-12-pull bar, 2-13-dust-proof cover, 2-14-drag link sleeve, 2-15-pull release spring, 2-16-lever, 2-17-one-way valve, 2-171-valve follower, 2-172-nut cap, 2-173-valve seat, 2-174-valve spring, 2-2-fuel tank cap, 2-21--lever seat, 2-3-cylinder body, 2-31-grease chamber's viewing window, 2-32-pressure release oil duct, 2-33-grease chamber, 2-34-work oil duct, 2-35-compensation oil duct, 2-36-air outlet flue, 2-37-stop block, 2-4-oily piston assembly, 2-41-oily piston, 2-411-middle oil duct, 2-42-latch blocks up, 2-43-bearing pin, 2-44-valve base, 2-45-oily piston packing, 2-46-piston valve base, 2-47-guide pad, 2-5-filter, 3-hydraulic braking clamp, 3-1-bracket body, 3-1-1-main oil gallery, 3-2-clamp fitting seat, 3-21-point oil duct, 3-22-clamp piston hole, 3-3-outlet valve, 3-4-fixing pin, 3-5-brake pad, 3-6-loose pin, 3-7-lock screw, 3-8-fastening piece, 3-9-locking plate, 3-10-clamp piston plate, 3-11-clearance adjuster, 3-111-fixing rod cover, 3-112-fixing rod, 3-113-Rectangular Spring, 3-114-reset pad, 3-115-returning spring, 3-116-reseting sleeve, 3-12-clamp piston, 3-13-clamp dust-break cover, 3-14-clamp oil pocket, 4-brake disc.

Embodiment

See shown in Fig. 1 ~ 18, one of the present utility model brake rigging used for rail vehicle, comprise brake cylinder 1, brake cylinder 2 and hydraulic braking clamp 3, braking force is provided by brake cylinder 1, fluid in brake cylinder 2 is changed into pressure oil, by internal galleries, pressure oil is filled with in the clamp piston of hydraulic braking clamp 3, promotes brake pad 3-5 and compress brake disc 4, realize the braking of rail vehicle.

See shown in Fig. 1 ~ 6, brake cylinder 2 of the present utility model comprises cylinder body 2-3 and oily piston assembly 2-4, brake cylinder 1 and hydraulic braking clamp 3 are sealedly connected on the two ends of cylinder body 2-3 respectively, the cylinder piston axle 1-61 of brake cylinder 1 is sealedly connected on cylinder body 2-3 and also can moves axially, there is in cylinder body 2-3 grease chamber 2-33, work oil duct 2-34 and compensation oil duct 2-35, the oil duct junction compensating oil duct 2-35 top communicates with grease chamber 2-33, fluid is stored in grease chamber 2-33, compensate oil duct 2-35 top and filter is installed, enter in each oil duct to keep clean fluid.Carry fuel tank in the utility model cylinder body 2-3, therefore without the need to being equipped with hydraulic system etc. ON TRAINS, applicability is better.

See Fig. 4, shown in 6, oily piston assembly 2-4 of the present utility model comprises oily piston 2-41, guide pad 2-47 and the piston valve base 2-46 with valve opening, the work oil duct 2-34 that oily piston 2-41 sealing is arranged on cylinder body 2-3 is interior also can be moved axially, oil piston 2-41 is sealed by oily piston packing 2-45 and work oil duct 2-34, guide pad 2-47 is arranged on one end of cylinder piston axle 1-61 and stretches in oily piston 2-41, bearing pin 2-43 is by oily piston 2-41, guide pad 2-47 is connected with cylinder piston shaft 1-61, one end of the utility model cylinder piston axle 1-61 has connection shaft part, guide pad 2-47 in tubular is covered on the connection shaft part of cylinder piston axle 1-61 and is connected by bearing pin 2-43, bearing pin 2-43 is positioned at the slotted hole of oily piston 2-41, latch blocks up 2-42 and is enclosed within oily piston 2-41 and blocks bearing pin 2-43 place.

See shown in Fig. 2,4,6, the utility model piston valve base 2-46 sealing is arranged in oily piston 2-41, the work oil duct 2-34 of cylinder body 2-3 communicates with the oil duct in hydraulic braking clamp 3, compensation oil duct 2-35 when release of brake state communicates with work oil duct 2-34 through the middle oil duct 2-411 between guide pad 2-47 and piston valve base 2-46 and the valve opening on piston valve base 2-46, and guide pad 2-47 during braking state and piston valve base 2-46 seal and connect and close middle oil duct 2-411.During the utility model relieved state, work oil duct 2-34 is communicated with grease chamber 2-33 by middle oil duct 2-411 and compensation oil duct 2-35, normal pressure fluid in grease chamber 2-33 enters work oil duct 2-34, makes to be filled with fluid in the work oil duct 2-34 of oily piston 2-41 front portion.During braking, braking force is produced by being filled with pressurized air in brake cylinder 1, promote cylinder piston axle 1-61 motion, oil duct 2-411 and grease chamber 2-33 in the middle of cylinder piston axle 1-61 cuts off also promotes oily piston 2-41, the normal pressure fluid that oil piston 2-41 travels forward in extruding work oil duct 2-34, the oil liquid pressure in work oil duct 2-34 is made to raise and be transformed into pressure oil, pressure oil enters the internal galleries of hydraulic braking clamp 3 by the work oil duct 2-34 of cylinder body 2-3, thus the brake pad 3-5 promoted on hydraulic braking clamp 3 compresses brake disc 4, realize train braking.

As shown in Figure 6, piston valve base 2-46 of the present utility model is made up of valve base 2-44 and elastic component, valve base 2-44 is metal construction, valve base 2-44 and elastic component are sulfided into one, piston valve base 2-46 is made to have good mechanical strength and reliable sealability, valve base 2-44 periphery is tightly connected by seal ring and oily piston 2-41, and oily piston 2-41 periphery is sealed by the work oil duct 2-34 of seal ring and cylinder body 2-3.

See shown in Fig. 1 ~ 6, brake cylinder 1 of the present utility model also comprises cylinder block 1-2, lamina membranacea chamber component 1-4, cylinder piston 1-5, cylinder piston axle Returnning spring 1-9, stopping brake spring 1-3 and piston shaft guide holder 1-62, the front end of cylinder block 1-2 and the cylinder body 2-3 of brake cylinder 2 are tightly connected, and the back-end sealing of cylinder block 1-2 is connected with cylinder back cover 1-1.See Fig. 4, shown in 6, lamina membranacea chamber component 1-4 sealing of the present utility model is arranged on cylinder back cover 1-1, piston shaft guide holder 1-62 sealing is fixed on cylinder body 2-3, this piston shaft guide holder 1-62 has flange seat 1-622, flange seat 1-622 sealing is arranged on cylinder body 2-3, cylinder piston axle 1-61 is sealedly connected on cylinder piston 1-5 and piston shaft guide holder 1-62 and also can moves axially, cylinder piston 1-5 is crimped with piston sleeve 1-8, between piston sleeve 1-8 and cylinder piston axle 1-61, seal ring is installed, make cylinder piston axle 1-61 and cylinder piston 1-5 can relative movement, good sealability can be had again.As shown in Figure 4, the utility model cylinder piston 1-5 sealing is arranged in cylinder block 1-2, realizes seal in the seal groove that cylinder piston seal ring 1-7 is arranged on cylinder piston 1-5 with cylinder block 1-2, alleviation, brake time cylinder piston 1-5 can move axially.Cylinder block 1-2 is divided into two independently air chambers by cylinder piston 1-5 of the present utility model, forms service brake air chamber B between cylinder back cover 1-1 and cylinder piston 1-5, forms stopping brake air chamber C between cylinder body 2-3 and cylinder piston 1-5.As shown in Figure 4, the cylinder body 1-2 of the utility model stopping brake air chamber C is provided with the second pore 1-22, for the inflation/deflation of stopping brake air chamber C, during except parking brake, keeps inflated condition in stopping brake air chamber C always.The cylinder body of the utility model service brake air chamber B is provided with the first pore 1-23, and the first pore 1-23 is provided with dust filter net, for the air supplemented and in release service brake air chamber B, ensures the steady of braking process, and keeps cleaning of service brake air chamber B.

See Fig. 4, shown in 6, be provided with at least two airtight seal 1-65 of gas seal and the seal ring 1-64 for sealing fluid between the utility model piston shaft guide holder 1-62 and cylinder piston axle 1-61, the exhaust port 1-621 that piston shaft guide holder 1-62 is provided with between two airtight seal 1-65 communicates with the air outlet flue 2-36 on cylinder body 2-3, can prevent gas from entering in cylinder body 2-3 by multiple airtight seal 1-65, and the leakage gas entered in piston shaft guide holder 1-62 can be discharged from exhaust port 1-621, prevent the fluid in cylinder body 2-3 from entering in cylinder block 1-2 by the seal ring 1-64 be arranged between cylinder piston axle 1-61 and piston shaft guide holder 1-62, piston shaft guide holder 1-62 is made to have good air-tightness.

See shown in Fig. 4,6, the utility model cylinder piston axle 1-61 is provided with stopping seat 1-611, carry out spacing by stopping seat 1-611 to the mounting point of cylinder piston 1-5, and drive cylinder piston axle 1-61 to move when stopping brake by cylinder piston 1-5 promotion stopping seat 1-611.The other end of the utility model cylinder piston axle 1-61 has spring seat 1-10, cylinder piston axle 1-61 is relative with the driving member of lamina membranacea chamber component 1-4, this spring seat 1-10 is removable to be arranged on cylinder piston axle 1-61, be connected on cylinder piston axle 1-61 by collar, also can spring seat 1-10 be arranged on cylinder piston axle 1-61 by fastening piece, the two ends being enclosed within the cylinder piston axle Returnning spring 1-9 on cylinder piston axle 1-61 withstand on cylinder piston 1-5 and spring seat 1-10 respectively, namely one end of cylinder piston axle Returnning spring 1-9 withstands on cylinder piston 1-5, the other end withstands on spring seat 1-10, the arranged outside of lamina membranacea chamber component 1-4 has stopping brake spring 1-3, the two ends of stopping brake spring 1-3 withstand on cylinder block 1-2 and cylinder piston 1-5 respectively, namely one end of stopping brake spring 1-3 withstands on cylinder block 1-2, the other end withstands on cylinder piston 1-5.

See Fig. 4, shown in 5, the utility model lamina membranacea chamber component 1-4 comprises the lamina membranacea room main body 1-42 of tubular, be arranged on the lamina membranacea connecting plate 1-41 in the main body 1-42 of lamina membranacea room and flexible diaphragm 1-44, lamina membranacea room main body 1-42 is sealedly connected on cylinder back cover 1-1, one end of flexible diaphragm 1-44 is fixed on lamina membranacea connecting plate 1-41, the other end is fixed on the main body 1-42 of lamina membranacea room, lamina membranacea connecting plate 1-41 is the driving member of lamina membranacea chamber component 1-4, cylinder back cover 1-1 is provided with gas joint 1-11, the pore of gas joint 1-11 and lamina membranacea room main body 1-42, the lamina membranacea air chamber A that lamina membranacea connecting plate 1-41 and flexible diaphragm 1-44 is formed communicates, by gas joint 1-11, inflation/deflation is carried out to lamina membranacea air chamber A.

See shown in Fig. 4,5, the utility model lamina membranacea room main body 1-42 has step, lamina membranacea room main body 1-42 internal fixtion has lamina membranacea side cover 1-43, the guide plate 1-46 of tubular is also fixed with in lamina membranacea connecting plate 1-41, guide plate 1-46 has annular groove, between the annular groove that one end of flexible diaphragm 1-44 is fixed on lamina membranacea connecting plate 1-41 and guide plate 1-46, the other end is fixed between the step of lamina membranacea side cover 1-43 and lamina membranacea room main body 1-42, and flexible diaphragm 1-44 is positioned at the periphery of guide plate 1-46.As shown in Figure 5, guide plate 1-46 is fixedly connected with push rod 1-45, cylinder piston axle 1-61 cover has one end of spring seat 1-10 to offer pilot hole 1-612, the push shaft of push rod 1-45 penetrates in the pilot hole 1-612 of cylinder piston axle 1-61, the bottom of pilot hole 1-612 is provided with ram seat 1-63, the end that push rod 1-45 contacts with ram seat 1-63 is cambered surface, promotes ram seat 1-63 and act on cylinder piston axle 1-61 by push rod 1-45.The utility model lamina membranacea side cover 1-43 is fixed with gas joint 1-11, and gas joint 1-11 passes cylinder back cover 1-1, and the lamina membranacea air chamber A that pore and lamina membranacea side cover 1-43, the lamina membranacea connecting plate 1-41 and flexible diaphragm 1-44 of gas joint 1-11 are formed communicates.The utility model is filled with pressurized air by the pore of gas joint 1-11 in lamina membranacea air chamber A, because flexible diaphragm 1-44 has flexibility, pressed gas promotes lamina membranacea connecting plate 1-41, guide plate 1-46, push rod 1-45 move together, push rod 1-45 promotes cylinder piston axle 1-61 motion, provides braking force and braking distance.

As shown in Figure 4, cylinder block 1-2 inwall of the present utility model is provided with and carries out spacing bulge loop 1-21 to cylinder piston 1-5, carries out spacing when direct release state to the mobile position of cylinder piston 1-5.The utility model cylinder body 2-3 is provided with and carries out spacing stop block 2-37 to cylinder piston 1-5, carries out spacing when stopping brake to the mobile position of cylinder piston 1-5.

As shown in Figure 4, during the utility model service brake, in lamina membranacea air chamber A, pressurized gas is filled with by the pore of the gas joint 1-11 of cylinder back cover 1-1, flexible diaphragm 1-44 has flexibility, pressed gas promotes lamina membranacea connecting plate 1-41 motion, thus drive push rod 1-45 motion, owing to keeping inflated condition in stopping brake air chamber C, and the gas pressure in stopping brake air chamber C is greater than the spring force of stopping brake spring 1-3, stopping brake spring 1-3 is in confined state, cylinder piston 1-5 keeps motionless in cylinder block 1-2, cylinder piston axle 1-61 travels forward under the promotion of push rod 1-45, oil duct 2-411 in the middle of cylinder piston axle 1-61 closes also promotes oily piston 2-41, the normal pressure fluid that oil piston 2-41 travels forward in extruding work oil duct 2-34, the oil liquid pressure in work oil duct 2-34 is made to raise and be transformed into pressure oil, pressure oil is passed in hydraulic braking clamp 3 by internal galleries, promote brake pad 3-5 and clamp brake disc 4, realize service brake.After the pressed gas of the utility model in release lamina membranacea air chamber A, cylinder piston axle 1-61 replys under the effect of cylinder piston axle Returnning spring 1-9, work oil duct 2-34 is communicated with grease chamber 2-33 by middle oil duct 2-411, oil liquid pressure in work oil duct 2-34 returns to normal pressure, realizes service brake and alleviates.Lamina membranacea chamber component 1-4 is added in the service brake air chamber B of the utility model in cylinder block 1-2, lamina membranacea chamber component 1-4 is sealedly connected on cylinder back cover 1-1, therefore can be arranged in service brake air chamber B by folding for the lamina membranacea in lamina membranacea chamber component 1-4, by gas joint, gas is filled with in lamina membranacea air chamber A, make the driving member on lamina membranacea chamber component 1-4 promote cylinder piston axle 1-61 to move, and increase service brake stroke.The letter of the utility model lamina membranacea chamber component structure is compact, increases stroke braking distance by utilizing the source of the gas on train.

As shown in Figure 4, during the utility model parking brake, pressed gas in release stopping brake air chamber C, stopping brake spring 1-3 resets and retracting spring power, promote cylinder piston 1-5 to move, cylinder piston 1-5 drives cylinder piston axle 1-61 motion, oil duct 2-411 in the middle of cylinder piston axle 1-61 closes also promotes oily piston 2-41, the normal pressure fluid that oil piston 2-41 travels forward in extruding work oil duct 2-34, the oil liquid pressure in work oil duct 2-34 is made to raise and be transformed into pressure oil, pressure oil is passed in hydraulic braking clamp 3 by internal galleries, promote brake pad 3-5 and clamp brake disc 4, realize stopping brake.The utility model is filled with pressurized air in parking brake air chamber C, compression stopping brake spring 1-3, cylinder piston 1-5 replys, cylinder piston axle 1-61 replys under the effect of cylinder piston axle Returnning spring 1-9, work oil duct 2-34 is communicated with grease chamber 2-33 by middle oil duct 2-411, oil liquid pressure in work oil duct 2-34 returns to normal pressure, realizes stopping brake and alleviates.The utility model is provided with lamina membranacea chamber component and stopping brake spring 1-3 in driving brake chamber B, service brake and parking brake function are integrated in a cylinder body, and running braking function and parking brake function is relatively independent again, is convenient to safeguard, debug.The utility model utilizes existing source of the gas on rail vehicle and stopping brake spring force, promote cylinder piston axle 1-61 motion, thus drive oily piston 2-41 to move, air pressure and stopping brake spring force are converted into oil liquid pressure, realized the amplification of braking force by fluid supercharging, thus obtain larger braking leverage.The utility model brake rigging energy attainment brake hydraulic pressure function, compact structure, braking is efficient, and do not need on rail vehicle is hydraulic braking clamp outfit hydraulic system separately simultaneously, simplifies the corollary system on rail vehicle.The utility model brake cylinder 1, except employing embodiment of the present utility model, also can adopt the brake cylinder of other structural types, as adopted the master cylinder of brake clamp unit disclosed in Chinese patent literature CN202790244U.

See Fig. 4, shown in 6 ~ 9, brake rigging of the present utility model also comprises stroke measurement assembly 1-12, stroke measurement assembly 1-12 comprises working stroke plate 1-121, stroke display bar 1-122 and stroke counter 1-126, working stroke plate 1-121 is arranged on the stopping seat 1-611 of cylinder piston axle 1-61, working stroke plate 1-121 can be moved with cylinder piston axle 1-61, stroke display bar 1-122 sealing is arranged on cylinder body 2-3 and also can moves axially, stroke Returnning spring 1-125 is enclosed within stroke display bar 1-122, the two ends of stroke Returnning spring 1-125 withstand on the boss of cylinder body 2-3 and stroke display bar 1-122 respectively, namely one end of stroke Returnning spring 1-125 withstands on cylinder body 2-3, the other end withstands on the boss of stroke display bar 1-122, the working stroke plate 1-121 of cylinder piston axle 1-61 when having working stroke to be crimped on stroke display bar 1-122 and to promote stroke display bar 1-122 and move axially, the stroke of stroke counter 1-126 to stroke display bar 1-122 be arranged on cylinder body 2-3 measures.The utility model is when braking, working stroke plate 1-121 moves together along with cylinder piston axle 1-61, when cylinder piston axle 1-61 has working stroke, working stroke plate 1-121 to be crimped on stroke display bar 1-122 and to promote stroke display bar 1-122 and moves outside cylinder body 2-3, and the stroke of stroke counter 1-126 to stroke display bar 1-122 being arranged on cylinder body 2-3 outside measures.The utility model is after cylinder piston axle 1-61 resets, and stroke display bar 1-122 is resetted by stroke Returnning spring 1-125.Each working stroke of cylinder piston axle 1-61 can be reflected by the utility model stroke measurement assembly 1-12 intuitively, the using state of brake rigging can be judged fast, so that on-call maintenance and replacing brake rigging, ensure the Security of vehicle operating.

See shown in Fig. 7 ~ 9, the axis of the utility model stroke display bar 1-122 and the axis being parallel of cylinder piston axle 1-61, stroke display bar 1-122 sealing is arranged on guide sleeve 1-124, guide sleeve 1-124 sealing is arranged on cylinder body 2-3, backing plate 1-123 is arranged on the outside of cylinder body 2-3, by fastening piece, backing plate 1-123 is arranged on stroke display bar 1-122, the two ends of stroke Returnning spring 1-125 withstand on the boss of guide sleeve 1-124 and the boss of stroke display bar 1-122 respectively, namely one end of stroke Returnning spring 1-125 withstands on the boss of guide sleeve 1-124, the other end withstands on the boss of stroke display bar 1-122.

See Fig. 4, shown in 10 ~ 13, brake rigging of the present utility model also comprises hand relieving mechanism 2-1, hand relieving mechanism 2-1 comprises pull bar 2-12, pull release spring 2-15, lever 2-16 and one-way valve 2-17, the pressure release oil duct 2-32 communicated with grease chamber 2-33 is also provided with in cylinder body 2-3, cylinder body 2-3 is provided with one-way valve 2-17 at the oil duct junction place on pressure release oil duct 2-32 top, the oil duct junction of pressure release oil duct 2-32 bottom communicates with the work oil duct 2-34 of oily piston 2-41 front portion, fuel tank cap 2-2 sealing with pouring orifice is arranged on cylinder body 2-3, the pouring orifice place of fuel tank cap 2-2 is provided with filter 2-5, ensure the clean of grease chamber 2-33 inner fluid.See Fig. 4, shown in 10 ~ 13, pull bar 2-12 sealing of the present utility model is arranged on fuel tank cap 2-2 also can move, the two ends pulling release spring 2-15 be enclosed within pull bar 2-12 withstand on the bearing of fuel tank cap 2-2 and pull bar 2-12 respectively, namely the one end pulling release spring 2-15 withstands on fuel tank cap 2-2, the other end withstands on the bearing of pull bar 2-12, the both sides of lever 2-16 are hinged on the lever seat 2-21 of bearing and fuel tank cap 2-2 respectively, namely the side of lever 2-16 is hinged on bearing, opposite side is hinged on the lever seat 2-21 of fuel tank cap 2-2, one end of lever 2-16 is relative with one-way valve 2-17, for controlling the keying of one-way valve 2-17.See shown in Figure 10 ~ 13, the utility model fuel tank cap 2-2 is provided with drag link sleeve 2-14, pull bar 2-12 sealing is arranged on drag link sleeve 2-14 and also can moves, pull bar 2-12 bottom is provided with bearing, the two ends pulling release spring 2-15 withstand on the bearing of drag link sleeve 2-14 and pull bar 2-12 respectively, namely the one end pulling release spring 2-15 withstands on drag link sleeve 2-14, the other end withstands on the bearing of pull bar 2-12, one end of dust-proof cover 2-13 is arranged on pull bar 2-12, the other end is arranged on drag link sleeve 2-14, fuel tank cap 2-2 is also provided with and alleviates rope support 2-11, alleviation rope can be bearing in and alleviate on rope support 2-11 and be connected with pull bar 2-12, pressure discharge operations is carried out by pulling alleviation rope band to move pull bar 2-12.The pressure release oil duct 2-32 place of the utility model in cylinder body 2-3 is provided with one-way valve 2-17, because moving element is all the inside being arranged on cylinder body 2-3, manually alleviate the keying of the one-way valve 2-17 of mechanism controls, realize the hand relieving of stopping brake, compact structure, rapid operation, without the need to taking outside space.

See Fig. 4, shown in 13, one-way valve 2-17 of the present utility model comprises nut cap 2-172, valve follower 2-171, valve seat 2-173 and valve spring 2-174, nut cap 2-172 is screwed on cylinder body 2-3, and seal with seal ring and cylinder body 2-3, the oil duct that valve follower 2-171 penetrates on nut cap 2-172 is interior and relative with valve seat 2-173, the valve spring 2-174 be arranged on cylinder body 2-3 withstands on and valve seat 2-173 makes valve seat 2-173 connect with the lower end of nut cap 2-172 seal, valve follower 2-171 during hand relieving presses down valve seat 2-173 makes pressure release oil duct 2-32 communicate with the oil duct on nut cap 2-172.When braking instruction system malfunctions, or vehicle maintenance is when cannot provide source of the gas, see shown in Fig. 4,10 ~ 13, upwards pull pull bar 2-12, pull bar 2-12 drives lever 2-16, and one end of lever 2-16 presses down open check valve 2-17, by the unlatching of one-way valve 2-17, grease chamber 2-33 is communicated with pressure release oil duct 2-32, thus making the pressure oil in work oil duct 2-34 be back to grease chamber 2-33, release oil pressure, realizes stopping brake and alleviates; Put down pull bar 2-12, pull bar 2-16 replys under the effect pulling release spring 2-15, and lever 2-16 also and then replys, and one-way valve 2-17 is closed, and cuts off pressure release oil duct 2-32.Of the present utility model pulling alleviates mechanism 2-1 compact structure, alleviates simple to operate, has good applicability.

See Fig. 1, shown in 2 and 14 ~ 18, hydraulic braking clamp 3 of the present utility model comprises bracket body 3-1, clamp piston 3-12, clearance adjuster 3-11 and brake pad 3-5, the side of bracket body 3-1 is sealedly connected on cylinder body 2-3, opposite side is provided with two parallel relative clamp fitting seat 3-2, main oil gallery 3-1-1 in bracket body 3-1 communicates with point oil duct 3-21 in the work oil duct 2-34 in cylinder body 2-3 and clamp fitting seat 3-2, pressure oil in cylinder body 2-3 enters the main oil gallery 3-1-1 in bracket body 3-1 by work oil duct 2-34, a point oil duct 3-21 again in clamp fitting seat 3-2 acts on clamp piston 3-12 and controls brake pad 3-5 action.See shown in Figure 14,15, the utility model is for ease of processing, clamp fitting seat 3-2 is arranged on bracket body 3-1 by fastening piece 3-8, clamp fitting seat 3-2 can be arranged on bracket body 3-1 through locking plate 3-9 by fastening piece 3-8, clamp fitting seat 3-2 is reliably connected on bracket body 3-1, and the main oil gallery 3-1-1 on oil duct 3-21 and bracket body 3-1 that divides on clamp fitting seat 3-2 is provided with seal ring in joint.As shown in Figure 14, the utility model bracket body 3-1 has 6 mounting holes and 2 positioning pin holes, brake rigging can be arranged on the bogie of car or gear-box by mounting hole and positioning pin hole.

See Fig. 2, shown in 16 ~ 18, the clamp piston hole 3-22 that clamp piston 3-12 sealing of the present utility model is arranged on clamp fitting seat 3-2 is interior also can be moved axially, in the seal groove that seal ring can be arranged on the clamp piston hole 3-22 of clamp fitting seat 3-2, sealing is realized to clamp piston 3-12, brake pad 3-5 is connected with clamp piston 3-12, a point oil duct 3-21 in clamp fitting seat 3-2 communicates with the clamp oil pocket 3-14 between clamp piston 3-12 and clamp fitting seat 3-2, pressure oil in brake cylinder 2 is filled with clamp oil pocket 3-14 by internal galleries and promotes clamp piston 3-12 and move, clamp piston 3-12 drives brake pad 3-5 to move to brake disc 4, brake pad 3-5 is made to compress the brake disc 4 of High Rotation Speed, by the kinetic transformation one-tenth dish of vehicle, the frictional heat energy of sheet, thus realize the Brake stop of vehicle.

See shown in Figure 16,17, the side that the utility model clamp piston 3-12 stretches out clamp piston hole 3-22 is provided with clamp piston plate 3-10, brake pad 3-5 is connected with clamp piston plate 3-10, avoid brake pad 3-5 directly and clamp piston 3-12 direct effect, improve the working life of clamp piston 3-12, and be also convenient to change.The two ends of clamp dust-break cover 3-13 of the present utility model are arranged on clamp piston 3-12 and clamp fitting seat 3-2 respectively, namely clamp dust-break cover 3-13 one end is arranged on clamp piston 3-12, the other end is arranged on clamp fitting seat 3-2, and cover on clamp piston hole 3-22 place, prevent because impurity etc. enters in clamp piston hole 3-22 and damage clamp piston 3-12.As shown in Figure 17, the diameter of the utility model clamp piston plate 3-10 is greater than the diameter of clamp piston 3-12, makes the outside mask of clamp piston plate 3-10 on the clamp dust-break cover 3-13 of part, namely can protect clamp dust-break cover 3-13.Brake cylinder 2 is coupled together with clamp fitting seat 3-2 by bracket body 3-1 by the utility model, and bracket body 3-1 plays fixed support and provides the effect of oil circuit, effectively avoids the leakage of fluid, improves the reliability of braking and the Security of vehicle operating.

See shown in Figure 16 ~ 18, clearance adjuster 3-11 of the present utility model comprises reseting sleeve 3-116, returning spring 3-115 and reset pad 3-114, fixing rod 3-112 and Rectangular Spring 3-113, clamp piston 3-12 is provided with mounting hole towards clamp oil pocket 3-14 side, reseting sleeve 3-116 is arranged in mounting hole, reset pad 3-114 is arranged on clamp piston 3-12, on the outer shaft shoulder that the two ends being enclosed within the returning spring 3-115 on reseting sleeve 3-116 withstand on reseting sleeve 3-116 respectively and reset pad 3-114, namely one end of returning spring 3-115 withstands on the outer shaft shoulder of reseting sleeve 3-116, the other end withstands on reset pad 3-114, between reset pad 3-114 and reseting sleeve 3-116, there is primary clearance δ, this primary clearance δ can between 0.5 ~ 7mm, this primary clearance δ can be 1mm, 3mm or 5mm etc., primary clearance δ of the present utility model designs according to different brake requests.See shown in Figure 17,18, fixing rod 3-112 of the present utility model to be arranged on clamp fitting seat 3-2 and to penetrate in clamp piston 3-12 through reset pad 3-114 and reseting sleeve 3-116, Rectangular Spring 3-113 is connected with fixing rod 3-112 interference, connect with the shaft shoulder in reseting sleeve 3-116 in the axis hole that Rectangular Spring 3-113 is arranged on reseting sleeve 3-116, make the frictional force between Rectangular Spring 3-113 and fixing rod 3-112 with interference.The utility model fixing rod 3-112 is T-shaped bar, and fixing rod, through the step hole of fixing rod cover 3-111, is overlapped 3-111 by collar and is arranged on clamp fitting seat 3-2, thus be arranged on clamp fitting seat 3-2 by fixing rod 3-112 by fixing rod 3-112.

See Fig. 2, 17, shown in 18, during the utility model braking, brake cylinder 2 provides pressure oil, pressure oil is by work oil duct 2-34, a main oil gallery 3-1-1 and point oil duct 3-21 enters clamp oil pocket 3-14, pressure oil promotes clamp piston 3-12 motion, reset pad 3-114 travels forward with clamp piston 3-12, the frictional force be connected with fixing rod 3-112 interference due to Rectangular Spring 3-113 is greater than the spring force of returning spring 3-115, Rectangular Spring 3-113 and reseting sleeve 3-116 does not move, then reset pad 3-114 compression reaction spring 3-115, gap between reset pad 3-114 and reseting sleeve 3-116 is reduced, when there are not wearing and tearing in brake lining, clamp piston 3-12 makes brake pad 3-5 compress brake disc 4 by the primary clearance δ distance of design, realize braking, reset pad 3-114 can not act on reseting sleeve 3-116 from start to finish, when brake pad 3-5 weares and teares, distance between disc increases, when disc spacing increase to clamp piston 3-12 move δ distance brake pad 3-5 can not be made to compress brake disc 4 time, reset pad 3-114 will move forward under the effect of pressure oil, pressure due to pressure oil is greater than the frictional force that Rectangular Spring 3-113 is connected with fixing rod 3-112 interference, promotion Rectangular Spring 3-113 is moved on fixing rod 3-112, reset pad 3-114 will promote reseting sleeve 3-116 and move, until brake pad 3-5 compresses brake disc 4, after pressure oil pressure is eliminated, because Rectangular Spring 3-113 can not automatically reply under the effect of interference frictional force, clamp piston 3-12 only can reply the distance of primary clearance δ under the spring-force driven dual of returning spring 3-115, with the distance of Rectangular Spring 3-113 single-way moving come auto-compensation because brake pad 3-5 weares and teares the disc gap that increases.The utility model is by the interference fit of fixing rod 3-112 and Rectangular Spring 3-113, make Rectangular Spring 3-113 can only single-way moving under the effect of interference frictional force, the disc gap of auto-compensation increase is come by the distance of Rectangular Spring 3-113 single-way moving, realize, without clearance between poles adjustment, ensureing stability and the reliability of braking.

See shown in Figure 14 ~ 16, the utility model clamp fitting seat 3-2 is provided with and the fixing pin 3-4 of clamp piston axes line parallel and loose pin 3-6, the lock screw 3-7 be arranged on clamp fitting seat 3-2 withstands in the locked groove of loose pin 3-6, brake pad 3-5 supports or is connected on fixing pin 3-4 and loose pin 3-6 and also can move, when changing brake pad 3-5, only need to dismantle lock screw 3-7 and loose pin 3-6, brake pad 3-5 can be pulled down, easy to operate.

See shown in Figure 14 ~ 16, the utility model is provided with air flue on bracket body 3-1, air flue communicates with main oil gallery 3-1-1, the outlet valve 3-3 be arranged on bracket body 3-1 gets lodged in the outer end of air flue, the utility model clamp fitting seat 3-2 is also provided with outlet valve 3-3, and outlet valve 3-3 gets lodged in the oil drainage hole outer end communicated with clamp oil pocket 3-14, when debugging hydraulic clamp, the gas can drained in hydraulic oil, bracket body 3-1 and clamp fitting seat 3-2, guarantees the accuracy of braking distance.The utility model hydraulic braking clamp 3, except employing embodiment of the present utility model, also can adopt the hydraulic braking clamp of other structural types, as adopted hydraulic braking clamp disclosed in Chinese patent literature CN203176230U.

Claims (19)

1. a brake rigging used for rail vehicle, it is characterized in that: comprise brake cylinder (1), brake cylinder (2) and hydraulic braking clamp (3), described brake cylinder (2) comprises cylinder body (2-3) and oily piston assembly (2-4), described brake cylinder (1) and hydraulic braking clamp (3) are sealedly connected on the two ends of cylinder body (2-3) respectively, the cylinder piston axle (1-61) of brake cylinder (1) is sealedly connected on cylinder body (2-3) and above also can moves axially, there is in cylinder body (2-3) grease chamber (2-33), work oil duct (2-34) and compensation oil duct (2-35), the oil duct junction compensating oil duct (2-35) top communicates with grease chamber (2-33), described oily piston assembly (2-4) comprises oily piston (2-41), guide pad (2-47) and the piston valve base (2-46) with valve opening, oil piston (2-41) sealing is arranged in work oil duct (2-34) and also can moves axially, guide pad (2-47) is arranged on one end of cylinder piston axle (1-61) and stretches in oily piston (2-41), bearing pin (2-43) is by oily piston (2-41), guide pad (2-47) is connected with cylinder piston shaft (1-61), bearing pin (2-43) is positioned at the slotted hole of oily piston (2-41), piston valve base (2-46) sealing is arranged in oily piston (2-41), the work oil duct (2-34) of described cylinder body (2-3) communicates with the oil duct in hydraulic braking clamp (3), compensation oil duct (2-35) when release of brake state communicates with work oil duct (2-34) through the middle oil duct (2-411) between guide pad (2-47) and piston valve base (2-46) and the valve opening on piston valve base (2-46), and the guide pad (2-47) during braking and piston valve base (2-46) seal and connect and close middle oil duct (2-411).

2. one according to claim 1 brake rigging used for rail vehicle, it is characterized in that: described brake cylinder (1) also comprises cylinder block (1-2), lamina membranacea chamber component (1-4), cylinder piston (1-5), cylinder piston axle Returnning spring (1-9), stopping brake spring (1-3) and piston shaft guide holder (1-62), the front end of cylinder block (1-2) and the cylinder body (2-3) of brake cylinder (2) are tightly connected, the back-end sealing of cylinder block (1-2) is connected with cylinder back cover (1-1), lamina membranacea chamber component (1-4) sealing is arranged on cylinder back cover (1-1), described piston shaft guide holder (1-62) sealing is fixed on cylinder body (2-3), cylinder piston axle (1-61) is sealedly connected on cylinder piston (1-5) and piston shaft guide holder (1-62) above also can move axially, cylinder piston (1-5) sealing is arranged in cylinder block (1-2), cylinder piston axle (1-61) is provided with stopping seat (1-611), the other end of cylinder piston axle (1-61) has spring seat (1-10), cylinder piston axle (1-61) is relative with the driving member of lamina membranacea chamber component (1-4), the two ends being enclosed within the cylinder piston axle Returnning spring (1-9) on cylinder piston axle (1-61) withstand on cylinder piston (1-5) and spring seat (1-10) respectively, the arranged outside of lamina membranacea chamber component (1-4) has stopping brake spring (1-3), the two ends of stopping brake spring (1-3) withstand on cylinder block (1-2) and cylinder piston (1-5) respectively, cylinder back cover (1-1) is provided with gas joint (1-11), the pore of gas joint (1-11) communicates with the lamina membranacea air chamber A of lamina membranacea chamber component (1-4).

3. one according to claim 2 brake rigging used for rail vehicle, it is characterized in that: described cylinder block (1-2) inwall is provided with and carries out spacing bulge loop (1-21) to cylinder piston (1-5), described cylinder body (2-3) is provided with and carries out spacing stop block (2-37) to cylinder piston (1-5).

4. one according to claim 2 brake rigging used for rail vehicle, it is characterized in that: described lamina membranacea chamber component (1-4) comprises lamina membranacea room main body (1-42) of tubular, be arranged on the lamina membranacea connecting plate (1-41) in lamina membranacea room main body (1-42) and flexible diaphragm (1-44), lamina membranacea room main body (1-42) is sealedly connected on cylinder back cover (1-1), one end of flexible diaphragm (1-44) is fixed on lamina membranacea connecting plate (1-41), the other end is fixed on lamina membranacea room main body (1-42), the driving member that lamina membranacea connecting plate (1-41) is lamina membranacea chamber component (1-4), the pore of the gas joint (1-11) on cylinder back cover (1-1) and lamina membranacea room main body (1-42), the lamina membranacea air chamber A that lamina membranacea connecting plate (1-41) and flexible diaphragm (1-44) are formed communicates.

5. one according to claim 4 brake rigging used for rail vehicle, it is characterized in that: described lamina membranacea room main body (1-42) has step, lamina membranacea room main body (1-42) internal fixtion has lamina membranacea side cover (1-43), the guide plate (1-46) of tubular is also fixed with in lamina membranacea connecting plate (1-41), guide plate (1-46) has annular groove, one end of flexible diaphragm (1-44) is fixed between the annular groove of lamina membranacea connecting plate (1-41) and guide plate (1-46), the other end is fixed between the step of lamina membranacea side cover (1-43) and lamina membranacea room main body (1-42), and flexible diaphragm (1-44) is positioned at the periphery of guide plate (1-46), guide plate (1-46) is fixedly connected with push rod (1-45), cylinder piston axle (1-61) cover has one end of spring seat (1-10) to offer pilot hole (1-612), the push shaft of push rod (1-45) penetrates in the pilot hole (1-612) of cylinder piston axle (1-61).

6. one according to claim 2 brake rigging used for rail vehicle, it is characterized in that: also comprise stroke measurement assembly (1-12), described stroke measurement assembly (1-12) comprises working stroke plate (1-121), stroke display bar (1-122) and stroke counter (1-126), working stroke plate (1-121) is arranged on the stopping seat (1-611) of cylinder piston axle (1-61), stroke display bar (1-122) sealing is arranged on cylinder body (2-3) and above also can moves axially, stroke Returnning spring (1-125) is enclosed within that stroke display bar (1-122) is upper and its two ends withstand on the boss of cylinder body (2-3) and stroke display bar (1-122) respectively, working stroke plate (1-121) when cylinder piston axle (1-61) has a working stroke is crimped on stroke display bar (1-122) and goes up and promote stroke display bar (1-122) and move axially, the stroke of stroke counter (1-126) to stroke display bar (1-122) be arranged on cylinder body (2-3) measures.

7. one according to claim 6 brake rigging used for rail vehicle, it is characterized in that: the axis of described stroke display bar (1-122) and the axis being parallel of cylinder piston axle (1-61), stroke display bar (1-122) sealing is arranged on guide sleeve (1-124), guide sleeve (1-124) sealing is arranged on cylinder body (2-3), backing plate (1-123) is arranged on the outside of cylinder body (2-3), by fastening piece, backing plate (1-123) is arranged on stroke display bar (1-122), the two ends of stroke Returnning spring (1-125) withstand on the boss of guide sleeve (1-124) and the boss of stroke display bar (1-122) respectively.

8. one according to claim 2 brake rigging used for rail vehicle, it is characterized in that: described piston shaft guide holder (1-62) has flange seat (1-622), flange seat (1-622) sealing is arranged on cylinder body (2-3), be provided with at least two airtight seal (1-65) of gas seal and the seal ring (1-64) for sealing fluid between piston shaft guide holder (1-62) and cylinder piston axle (1-61), the exhaust port (1-621) that piston shaft guide holder (1-62) is provided with between two airtight seal (1-65) communicates with the air outlet flue (2-36) on cylinder body (2-3).

9. one according to claim 1 and 2 brake rigging used for rail vehicle, it is characterized in that: also comprise hand relieving mechanism (2-1), described hand relieving mechanism (2-1) comprises pull bar (2-12), pull release spring (2-15), lever (2-16) and one-way valve (2-17), the pressure release oil duct (2-32) communicated with grease chamber (2-33) is also provided with in described cylinder body (2-3), cylinder body (2-3) is provided with one-way valve (2-17) at the oil duct junction place on pressure release oil duct (2-32) top, the work oil duct (2-34) that the oil duct junction of pressure release oil duct (2-32) bottom is anterior with oily piston (2-41) communicates, fuel tank cap (2-2) sealing with pouring orifice is arranged on cylinder body (2-3), pull bar (2-12) sealing is arranged on fuel tank cap (2-2) and above also can moves, the two ends pulling release spring (2-15) be enclosed within pull bar (2-12) withstand on the bearing of fuel tank cap (2-2) and pull bar (2-12) respectively, the both sides of lever (2-16) are hinged on the bearing of pull bar (2-12) and the lever seat (2-21) of fuel tank cap (2-2) respectively, one end of lever (2-16) and keying for control one-way valve (2-17) relative with one-way valve (2-17).

10. one according to claim 9 brake rigging used for rail vehicle, it is characterized in that: described fuel tank cap (2-2) is provided with drag link sleeve (2-14), pull bar (2-12) sealing is arranged on drag link sleeve (2-14) and above also can moves, pull bar (2-12) bottom is provided with bearing, the two ends pulling release spring (2-15) withstand on the bearing of drag link sleeve (2-14) and pull bar (2-12) respectively, one end of dust-proof cover (2-13) is arranged on pull bar (2-12), the other end is arranged on drag link sleeve (2-14), fuel tank cap (2-2) is provided with and alleviates rope support (2-11).

11. one according to claim 9 brake rigging used for rail vehicle, it is characterized in that: described one-way valve (2-17) comprises nut cap (2-172), valve follower (2-171), valve seat (2-173) and valve spring (2-174), nut cap (2-172) is screwed in cylinder body (2-3) and goes up and use seal ring and cylinder body (2-3) to seal, the oil duct that valve follower (2-171) penetrates on nut cap (2-172) is interior and relative with valve seat (2-173), the valve spring (2-174) be arranged on cylinder body (2-3) withstands on and valve seat (2-173) makes valve seat (2-173) connect with the lower end of nut cap (2-172) seal, valve follower (2-171) when pulling alleviation presses down valve seat (2-173) makes pressure release oil duct (2-32) communicate with the oil duct on nut cap (2-172).

12. one according to claim 1 and 2 brake rigging used for rail vehicle, it is characterized in that: described piston valve base (2-46) is made up of valve base (2-44) and elastic component, valve base (2-44) is metal construction, the periphery of valve base (2-44) is tightly connected by seal ring and oily piston (2-41), and the periphery of oily piston (2-41) is sealed by the work oil duct (2-34) of seal ring and cylinder body (2-3).

13. one according to claim 1 and 2 brake rigging used for rail vehicle, it is characterized in that: one end of described cylinder piston axle (1-61) has connection shaft part, guide pad (2-47) in tubular is covered on the connection shaft part of cylinder piston axle (1-61) and is connected by bearing pin (2-43), and latch stifled (2-42) is enclosed within oily piston (2-41) and blocks bearing pin (2-43) place.

14. one according to claim 1 and 2 brake rigging used for rail vehicle, it is characterized in that: described hydraulic braking clamp (3) comprises bracket body (3-1), clamp piston (3-12), clearance adjuster (3-11) and brake pad (3-5), the side of described bracket body (3-1) is sealedly connected on cylinder body (2-3), opposite side is provided with two parallel relative clamp fitting seats (3-2), main oil gallery (3-1-1) in bracket body (3-1) communicates with point oil duct (3-21) in the work oil duct (2-34) in cylinder body (2-3) and clamp fitting seat (3-2), can move axially in the clamp piston hole (3-22) that clamp piston (3-12) sealing is arranged on clamp fitting seat (3-2), brake pad (3-5) is connected with clamp piston (3-12), a point oil duct (3-21) in clamp fitting seat (3-2) communicates with the clamp oil pocket (3-14) between clamp piston (3-12) and clamp fitting seat (3-2), described clearance adjuster (3-11) comprises reseting sleeve (3-116), returning spring (3-115) and reset pad (3-114), fixing rod (3-112) and Rectangular Spring (3-113), clamp piston (3-12) is provided with mounting hole towards clamp oil pocket (3-14) side, reseting sleeve (3-116) is arranged in mounting hole, reset pad (3-114) is arranged on clamp piston (3-12), on the outer shaft shoulder that the two ends being enclosed within the returning spring (3-115) on reseting sleeve (3-116) withstand on reseting sleeve (3-116) respectively and reset pad (3-114), between reset pad (3-114) and reseting sleeve (3-116), there is primary clearance δ, it is upper and penetrate in clamp piston (3-12) through reset pad (3-114) and reseting sleeve (3-116) that fixing rod (3-112) is arranged on clamp fitting seat (3-2), Rectangular Spring (3-113) is connected with fixing rod (3-112) interference, connect with the interior shaft shoulder of reseting sleeve (3-116) in the axis hole that Rectangular Spring (3-113) is arranged on reseting sleeve (3-116).

15. one according to claim 14 brake rigging used for rail vehicle, it is characterized in that: described clamp fitting seat (3-2) is arranged on bracket body (3-1) by fastening piece (3-8), clamp fitting seat (3-2) is provided with and the fixing pin (3-4) of clamp piston (3-12) axis parallel and loose pin (3-6), the lock screw (3-7) be arranged on clamp fitting seat (3-2) withstands in the locked groove of loose pin (3-6), brake pad (3-5) supports or be connected to fixing pin (3-4) and loose pin (3-6) above also can move.

16. one according to claim 14 brake rigging used for rail vehicle, it is characterized in that: the side that described clamp piston (3-12) stretches out clamp piston hole (3-22) is provided with clamp piston plate (3-10), brake pad (3-5) is connected with clamp piston plate (3-10), and the two ends of clamp dust-break cover (3-13) are arranged on clamp piston (3-12) respectively and clamp fitting seat (3-2) is gone up and covers on clamp piston hole (3-22) place.

17. one according to claim 14 brake rigging used for rail vehicle, it is characterized in that: described fixing rod (3-112) is T-shaped bar, fixing rod cover (3-111), through the step hole of fixing rod cover (3-111), is arranged on clamp fitting seat (3-2) by collar by fixing rod (3-112).

18. one according to claim 14 brake rigging used for rail vehicle, it is characterized in that: described bracket body (3-1) is provided with air flue, described air flue communicates with main oil gallery (3-1-1), and the outlet valve (3-3) be arranged on bracket body (3-1) gets lodged in the outer end of air flue; Described clamp fitting seat (3-2) is also provided with outlet valve (3-3), and outlet valve (3-3) gets lodged in the oil drainage hole outer end communicated with clamp oil pocket (3-14).

19. one according to claim 14 brake rigging used for rail vehicle, is characterized in that: described bracket body (3-1) has 6 bolt mounting holes and 2 positioning pin holes.