CN206409552U - A kind of vehicle band Parking Brake Cylinders - Google Patents

Abstract

A kind of vehicle band Parking Brake Cylinders, including unit brake cylinder and parking cylinder, unit brake cylinder includes brake cylinder casing, intermediate, brake piston component, braking regulating member and yoke, and braking regulating member includes adjustment axis, guiding nut component, hinders and adjust component and adjusting nut component；Resistance adjusts component to adjust guide bracket, resistance to adjust pad and hinder including resistance and adjusts spring；The Parking Brake Cylinders include parking cylinder body, park piston component and parking controlling organization, parking piston component includes parking piston, parking energy-storaging spring, park screw rod, park swivel nut, lower spring cup and ratchet, and parking controlling organization includes sphenoid and thrust sleeve.The utility model braking ability is reliable, be avoided that because lever elastic deformation trigger braking regulating member occur gap adjustment and caused by the phenomenon that diminishes of gap between brake lining and brake disc occur, and parking brake power is relatively large, the quantity for parking cylinder that vehicle is used is reduced.

Description

A kind of vehicle band Parking Brake Cylinders

Technical field

The utility model is related to vehicle band Parking Brake Cylinders.

Background technology

Band, which parks brake rigging, is used for rail vehicle braking, including brake clamp, band park unit brake cylinder, braking Disk and brake lining, band park unit brake cylinder include unit brake cylinder and park cylinder, and band park unit brake cylinder is arranged on brake clip One end of pincers.The utility model of Chinese application number 201220312267.0 discloses a kind of energy-storage type park unit brake cylinder, bag Include unit brake cylinder and park cylinder two parts, brake piston includes piston only and the piston tube coordinated with brake cylinder casing inwall, One end of brake cylinder casing is connected with intermediate, there is release spring, periphery and the centre of piston tube between intermediate and brake piston The center inside pipe wall of body is slidably matched, piston tube be connected with adjusting nut composition and guiding nut composition, resetting-mechanism by leading screw, Yoke etc. is constituted, and screw mandrel is connected by non-self-locking nut with adjusting nut and guiding nut, and parking cylinder part includes entering provided with second Gas port park cylinder body, park piston, park adjusting nut, park spring, guide finger, gear ring, hand braking set, ball assembly, Throw-out collar, piston lid and hand relieving device, the one end for parking cylinder body is fixedly connected with intermediate.Due to the brake lining of brake clamp Gap between brake disc can increase because of abrasion, and said units checking cylinder is in braking procedure, between brake lining and brake disc Gap can adjust automatically, but said units checking cylinder can be larger because of the brake force in braking procedure, and makes adjustment axis to thick stick Bar applies larger active force, and the elastic deformation of lever makes the protruding quantitative change of adjustment axis big, above-mentioned clearance adjustment mechanism erroneous judgement And gap adjustment is carried out automatically, the gap that so may result between brake lining and brake disc diminishes.Above-mentioned cylinder of parking is without amplification Mechanism, parking brake power is relatively small, and the space taken in the horizontal is larger.

The content of the invention

The purpose of this utility model is to propose a kind of vehicle band Parking Brake Cylinders, is avoided that because lever elastic deformation is touched The phenomenon that hair regulating member occurs gap adjustment and causes the gap between brake lining and brake disc to diminish occurs, and parking brake Power is relatively large.

To reach above-mentioned purpose, the utility model is adopted the following technical scheme that：The utility model include unit brake cylinder and Cylinder is parked, unit brake cylinder includes brake cylinder casing, intermediate, brake piston component, braking regulating member and yoke, intermediate connection In the front side of brake cylinder casing, intermediate is provided with the central tube forward extended out；The brake piston component includes brake piston, connected The brake piston pipe that is connected on brake piston, the brake piston lid for being connected to brake piston pipe front end, brake piston pipe pass through The central tube of intermediate and both are dynamic cooperation；Braking regulating member includes adjustment axis, guiding nut component, adjusting nut group Part；Adjustment axis is arranged in piston tube, and guiding nut component and adjusting nut component are arranged in adjustment axis；The adjusting nut Component includes the adjusting nut being threaded in adjustment axis, and the guiding nut component includes being threaded in adjustment axis Guiding nut, the tapered sleeve for being enclosed in adjustment axis and being on rear side of guiding nut and the guide springs for being enclosed on guiding nut front portion, cone The inner cone tooth of set and the cone tooth of guiding nut are engaging tooth；The cylinder of parking includes parking cylinder body, parking piston component and park Controlling organization；The tapered sleeve of the braking regulating member is connected with the piston tube cap-type face of its periphery；In the tapering of adjusting nut Front side provided with extension inner tube, the rear side of tapered sleeve provided with extension outer tube, tapered sleeve extend outer tube sleeve in adjusting nut extension inner tube and For dynamic cooperation, resistance is provided between tapered sleeve and adjusting nut and adjusts component, resistance adjusts component to adjust guide bracket, resistance to adjust pad and hinder including resistance and adjusts bullet Spring, resistance adjusts guide bracket to be threadedly coupled with the piston tube of its periphery, and resistance adjusts gasket-type face to be connected to the periphery that adjusting nut extends inner tube, And extend in tapered sleeve between outer tube and resistance tune guide bracket, resistance adjusts spring housing on the extension outer tube of tapered sleeve, and rear end is supported and hindered tune and leads Seat；The cylinder body of parking for parking cylinder is connected between on the base of body, is parked to be connected with cylinder body and is parked cylinder cap, parks cylinder cap Center be provided with the central tube that extends downwardly from；The controlling organization of parking includes sphenoid and thrust sleeve, and thrust sleeve moves engagement sleeves On the central tube of intermediate, thrust sleeve is connected by two symmetrical guide blots with brake piston, the bottom of the sphenoid It is connected with brake piston component, between the top insertion thrust sleeve and intermediate of sphenoid, the bottom of thrust sleeve is with parking cylinder cap Between provided with a pair of sphenoid back-moving springs.

The outer peripheral face of the tapered sleeve of the braking regulating member, which is provided with symmetrical two guide ledges, piston cap wall, to be set There are two guide grooves matched with two guide ledges of tapered sleeve, tapered sleeve is moved by two guide grooves of two guide ledges and piston lid matches somebody with somebody Close and realize tapered sleeve and be connected with the type face of piston lid.

The resistance of the braking regulating member adjusts the centre bore of guide bracket to have countersunk, and the resistance adjusts pad to have radial convex Edge, resistance adjusts the radial flange of pad to be in the countersunk that guide bracket is adjusted in resistance.

The surface of the adjusting nut extension inner tube of the braking regulating member is provided with a pair of guide grooves, and pad is adjusted in resistance Inwall provided with a pair of positioning boss, two guide grooves that resistance adjusts two positioning boss of pad and adjusting nut to extend inner tube, which are moved, matches somebody with somebody Close and realize resistance and adjust the type face connection of pad and adjusting nut extension inner tube.

The adjusting nut component also includes the cone tooth sliding sleeve being enclosed on adjusting nut, the square key being connected on cone tooth sliding sleeve And be arranged between the regulation spring on adjusting nut, cone tooth sliding sleeve adjusting nut provided with second bearing, bore on tooth sliding sleeve The cone tooth for boring tooth and the tapering on adjusting nut is engaging tooth, and square key inserts the central tube of intermediate by the guide groove of piston tube In guide groove.

The piston component of parking parks parking piston, park energy-storaging spring, park screw rod, stop in cylinder body including being in Put swivel nut, lower spring cup and ratchet, lower spring cup be rotatably connected on it is described park on piston, park that screw rod is dynamic to be connected to lower spring On seat, park swivel nut and be connected to the top for parking screw rod, park swivel nut and protrude upward and park cylinder cap, the pawl wheel is connected to Park on the central tube of cylinder cap, the energy-storaging spring of parking is connected between ratchet and lower spring cup；The bottom of the sphenoid It is connected to and parks on swivel nut.

The screw rod of parking for parking piston component has chassis, and lower spring cup has conical central hole, parks screw rod Chassis is placed in the conical central hole of lower spring cup, and the piston base center of parking has concave region, and lower spring cup, which is placed in, to stop Let live in plug concave region, the bottom of lower spring cup and parking is connected by lower thrust-bearing between piston concave region.

The chassis for parking screw rod, which is provided with unthreaded hole, unthreaded hole, is provided with pin, and the hemispherical nose of pin protrudes from bottom Face, parks piston concave region and is just provided with hemispherical groove to the position of the hemispherical nose of pin.

The bottom surface of the ratchet and parking is connected by up-thrust bearing between cylinder cap.

Both sides behind the thrust sleeve are respectively provided with both sides before circular arc planing surface, the intermediate and are respectively provided with circle Arc planing surface, the sphenoid has two pull bars, and the bottom of sphenoid is provided with screw rod, and sphenoid is connected to using screw rod and parked On swivel nut, the leading flank of two pull bars has lozenges, between the two pull bars insertion thrust sleeve and intermediate of sphenoid, two pull bars Lozenges is attached on the planing surface of thrust sleeve, and the trailing flank of two pull bars is attached on the planing surface of intermediate.

The left and right side of the thrust sleeve is respectively provided with bearing bracket stand, bearing bracket stand is connected with bearing, the outer ring table of bearing by bearing pin Face is planing surface.

The intermediate, which is provided with symmetrical two window, window, is provided with bearing bracket stand, and bearing is connected with by bearing pin on bearing bracket stand, The outer peripheral surface of bearing is planing surface.

The cylinder of parking has hand relieving device, and there is hand relieving device the hand being connected between on body to alleviate this Body, hand, which is alleviated, is provided with drawing pin in body, draw pin to be made up of drawing pin rod body with drawing pin main body, draw pin rod body to be sold provided with drawing and reset bullet Spring, draws the upper end of pin rod body to be connected with hand and alleviates drawstring, draws pin main body to be provided with breach, the top of breach wall is arc surface, is lacked The bottom of mouthful wall is, from arc surface to axial groove of the lower end on inclined-plane provided with insertion cylinder, to be provided with breach on inclined-plane, breach wall Drag hook is connected with rolling member, rolling member, drag hook is by drawing the axial groove of pin deeply to park in cylinder body, and drag hook is multiple provided with drag hook Position spring.

The opening inserted for drag hook is surrounded on the inwall for parking cylinder body and is provided with drag hook spring base, the corner of drag hook is set There is spring retainer platform, the drag hook back-moving spring is placed between spring base and spring retainer platform.

The rolling member is alleviated movable block by two bearings and the hand being connected between two bearings and constituted, and the drag hook is connected to Stretched out in the centre bore of hand alleviation movable block and by axial groove.

The utility model has following good effect：1. the gap between the brake lining and brake disc of brake clamp can be because of abrasion And increase, the gap between brake lining of the present utility model and brake disc can adjust automatically, holding brake lining and system in braking procedure Gap between Moving plate is in normal range (NR).2. in braking procedure, it may occur that make adjustment axis to overhanging because brake force is excessive Go out, and then the gap between brake lining and brake disc diminishes, there is the utility model resistance to adjust component, when brake force reaches certain limit When, resistance adjusts component to act in time, prevents braking regulating member from being adjusted, and keeps the gap between brake lining and brake disc just In normal scope.3. resistance of the present utility model adjusts the composition of component simple, and in guiding nut component and adjusting nut component it Between, it is compact in structure.4. the utility model is in the lower section of unit brake cylinder due to parking cylinder, makes by unit brake cylinder and park The band park unit brake cylinder lateral dimension of cylinder composition is small, saves the unit constituted by brake clamp and with park unit brake cylinder Space in the horizontal, is easy to meet different bogies and is transversely mounted the small requirement in space.5. parking brake of the present utility model Power is transmitted by the inclined-plane of sphenoid, and vertical forces are changed into horizontally power, and the force value of horizontal direction power is more than The force value of vertical forces, realizes the amplification of force value, suitable force amplificatory structure, thus than without enlarger to park cylinder defeated Exert oneself big, it is possible to reduce vehicle uses the quantity for parking cylinder.6. the utility model only can by changing sphenoid bevel angle To obtain different parking brake power, it is easy to the requirement of different parking brake power needed for meeting different automobile types.7. the utility model Hand relieving device by turn to draw pin inclined-plane, realize the amplification of force value, making the input power of hand relieving reduces, and Can be by adjusting bevel angle and turning to a value range for drawing pin spring force to be easy to input power required for reaching hand relieving. 8. changing the position that hand alleviates body mounting hole, the direction that hand alleviates device drawstring outlet can be adjusted, in order to be adapted to difference The requirement of bogie installing space.

Brief description of the drawings

Fig. 1 is overall structure figure of the present utility model, is also Fig. 3 H-H sectional views.

Fig. 2 is Fig. 1 I enlarged drawing.

Fig. 3 is Fig. 1 top view.

Fig. 4 is Fig. 1 G direction views.

Fig. 5 is Fig. 1 F-F sectional view.

Fig. 6 is Fig. 4 J-J sectional view

Fig. 7 is the stereogram of tapered sleeve.

Fig. 8 is the stereogram of piston lid.

Fig. 9 is the stereogram of adjusting nut.

Figure 10 is the stereogram that pad is adjusted in resistance.

Figure 11 is the stereogram that guide bracket is adjusted in resistance.

Figure 12 is the stereogram of lower spring cup.

Figure 13 is the stereogram of ratchet.

Figure 14 is the stereogram of sphenoid.

Figure 15 is the stereogram of thrust sleeve.

Figure 16 is to park piston component figure.

Figure 17 is the correlation combiner figure of thrust sleeve.

Figure 18 is the constitutional diagram for parking cylinder cap and ratchet.

Figure 19 is the correlation combiner figure of intermediate.

Figure 20 is the structure chart of hand relieving device.

Figure 21 is the constitutional diagram for drawing pin and rolling member.

In accompanying drawing：Unit brake cylinder A, park cylinder B, intermediate A 1, adjustment axis A2, protective plate A3, piston lid A4, guiding Nut assembly A5, resistance adjust component A6, adjusting nut component A7, brake cylinder casing A8, leather cup A9, release of brake spring A10, braking to live Fill in pipe A11, brake piston A12, yoke A13, waveform elastic pad A14, reduction nut A15, Telescopic dustproof cover 16；Park cylinder body B1, swivel nut B2 is parked, screw rod B3 is parked, parks cylinder cap B4, ratchet B5, up-thrust bearing B6, park energy-storaging spring B7, park work Fill in B8, lower thrust-bearing B9, lower spring cup B10, shop bolt B11, retaining spring B12, sphenoid back-moving spring B13, wedge shape Body B14, thrust sleeve B15, guide blot B16, bearing B17, bearing bracket stand B18, spring connecting pole B19；Hand relieving device C, hand Alleviate body C1, draw pin C2, draw pin back-moving spring C3, rolling member C4, bottom C5, drag hook spring base C6, drag hook C7, drag hook reset Spring C8, hand alleviate body sheath C9, link block C10, hand and alleviate drawstring C11.

Embodiment

Embodiment 1

See that Fig. 1 the present embodiment includes unit brake cylinder A and parks cylinder B.

See Fig. 1,2,6 to 11, unit brake cylinder A includes intermediate A 1, brake cylinder casing A8, brake piston component, braking tune Solve mechanism and yoke A13.Intermediate A 1 is connected to brake cylinder casing A8 front side, and intermediate A 1 is provided with the central tube forward extended out A1-1。

The central tube front end of intermediate 1 is provided with protective plate A3, and protective plate A3 is arranged on thrust sleeve B15, protective plate A3's Front side is provided with Telescopic dustproof cover A16, and dust cover A16 front end is connected with yoke A13.Intermediate is provided with safety valve.

The brake piston component, which includes brake piston A12 in the brake cylinder casing A8, leather cup A9, be connected to braking lives The brake piston pipe A11 on A12 is filled in, the brake piston lid A4 of brake piston pipe A11 front ends is connected to and is enclosed on braking and lived Fill on pipe A11 and in the release of brake spring A10 between intermediate A 1 and brake piston A12.

The braking regulating member includes adjustment axis A2, guiding nut component A5, resistance tune component A6 and adjusting nut component A7, adjustment axis A2 is arranged in piston tube A11, and guiding nut component A5, resistance adjust component A6 and adjusting nut component A7 certainly preceding extremely After be successively set on adjustment axis A2.

The guiding nut component A5 includes guiding nut A5-1, tapered sleeve A5-4 and guide springs A5-2.Guiding nut A5- 1 is threaded on adjustment axis A2, and clutch shaft bearing A5-3, clutch shaft bearing are provided between guiding nut A5-1 and piston lid A4 First bearing seat A5-5 is provided with front side of A5-3, guide springs A5-2 is enclosed on guiding nut front portion, and its front end is supported and piston lid A4 End wall, rear end is supported and first bearing seat A5-5.Tapered sleeve A5-4 is enclosed on adjustment axis A2 and the rear side in guiding nut A5-1, The tapered sleeve A5-4 has inner cone tooth A5-4s, tapered sleeve A5-4 inner cone tooth A5-4s and guiding nut A5-1 cone tooth to engage Tooth.Tapered sleeve A5-4 outer peripheral face is provided with symmetrical two guide ledges A5-4b, and guide ledges 5-4b is circular arc.Piston lid A4 inwalls are provided with the two guide groove A4-1 matched with the guide ledges A5-4b of tapered sleeve A5-4 two, and tapered sleeve A5-4 is oriented to convex by two Platform A5-4b and piston lid A4 two guide groove A4-1, which are moved, to be coordinated and the type face of realization is connected.When piston lid A4 two guide grooves Two guide ledges A5-4b front end faces of A4-1 bottom land and tapered sleeve A5-4 are affixed, and piston lid A4 can promote tapered sleeve A5-4 to move, So that guiding nut A5-1 is disengaged with tapered sleeve A5-4.

The adjusting nut component A7 includes adjusting nut A7-1, cone tooth sliding sleeve A7-4, square key A7-5 and regulation spring A7- 2.Adjusting nut A7-1 is threaded on adjustment axis A2, and cone tooth sliding sleeve A7-4 is enclosed on adjusting nut A7-1 and and adjusting nut Second bearing A7-3 is provided between A7-1, square key A7-5 is by mode connects for screw on cone tooth sliding sleeve A7-4, and square key A7-5 passes through piston The central tube A1-1 of pipe A11 guide groove A11-1 insertion intermediates guide groove A1-1a, and slid in two guide grooves.Adjusting nut There is A7-1 tapering A7-1b, tapering A7-1b to bore the cone tooth and adjusting nut A7-1 on tooth sliding sleeve A7-4 provided with cone tooth A7-1s Cone tooth A7-1s be engaging tooth.Regulation spring A7-2 is enclosed on adjusting nut A7-1, on adjusting nut A7-1 and in second bearing A7-3 rear side is provided with preceding spring base A7-6, and the rear end of adjusting nut is provided with rear spring seat A7-7, the regulation spring A7-2's Front and back end is supported and forward and backward spring base respectively.

It is provided with and prolongs in adjusting nut A7-1 tapering A7-1b rear side of the front side provided with extension inner tube A7-1a, tapered sleeve A5-4 Outer tube A5-4a is stretched, tapered sleeve A5-4 extension outer tube A5-4a is enclosed on adjusting nut A7-1 extension inner tube A7-1a and is gap Coordinate.

Adjust component A6 provided with resistance between tapered sleeve A5-4 and adjusting nut A7-1, resistance adjust component A6 include resistance adjust guide bracket A6-1, Resistance adjusts pad A6-2 and resistance to adjust spring A6-3.Resistance adjusts guide bracket A6-1 to have centre bore A6-1a, and guide bracket A6-1 centre bore is adjusted in resistance A6-1a has countersunk A6-1b, and resistance adjusts guide bracket A6-1 to be threadedly coupled with the piston tube A11 in its periphery.Pad A6-2 is adjusted in resistance Type face is connected to adjusting nut extension inner tube A7-1a periphery, and in tapered sleeve extension outer tube A5-4a and resistance adjust guide bracket A6-1 it Between.Extend in adjusting nut provided with a pair of guide groove A7-1c on inner tube A7-1a surface, resistance is adjusted on pad A6-2 inwall A pair of projections A6-2c, resistance adjusts pad A6-2 two boss A6-2c to extend inner tube A7-1a two guide grooves with adjusting nut respectively A7-1c is dynamic to be coordinated, and enables resistance to adjust pad A6-2 to be moved axially on adjusting nut extension inner tube A7-1a surfaces.Pad is adjusted in the resistance Piece A6-2 has radial flange A6-2b, and resistance adjusts pad A6-2 radial flange A6-2b to be in the countersunk that guide bracket A6-1 is adjusted in resistance In A6-1b, resistance adjusts pad radial flange A6-2b trailing flank to be affixed with countersunk A6-1b bottom surface.Spring A6-3 sets are adjusted in resistance On tapered sleeve A5-4 extension outer tube A5-4a, tune guide bracket A6-1 is supported and hindered in rear end.

The adjustment axis A2 is stretched out in protective plate A3 insertion yokes A13 centre bore, and adjustment axis A2 covers A2-s provided with end tooth, Adjustment axis A2 engages positioning by the end tooth on end tooth set A2-s with yoke A13 end tooth, by the reset spiral shell on adjustment axis A2 Yoke A13 is fixed on adjustment axis A2 by female A15, and waveform elastic pad A14 is provided between reduction nut A15 and yoke A13.

See Fig. 1 to 6,12 to 19, it is described park cylinder B include parking cylinder body B1, park piston component, park controlling organization and Hand relieving device C.The cylinder body B1 that parks is connected between on body A1 base, is parked to be connected with cylinder body B1 and is parked cylinder cap B4, the center for parking cylinder cap B4 is provided with the central tube B4-1 extended downwardly from.

The piston component of parking parks parking piston B8, park energy-storaging spring B7, park in cylinder body B1 including being in Screw rod B3, park swivel nut B2, lower spring cup B10 and ratchet B5.Parking screw rod B3, there is chassis B3-1, lower spring cup B10 to have Conical central hole B10-1, the chassis B3-1 for parking screw rod B3 is placed in lower spring cup B10 conical central hole B10-1, makes to park Screw rod B3 is dynamic to be connected on lower spring cup B10.The piston B8 bottom centre of parking has concave region B8-1, lower spring cup B10 It is placed in and parks in piston concave region B8-1, lower spring cup B10 bottom and parks between piston concave region B8-1 by lower thrust axle B9 connections are held, so that lower spring cup B10 is parked on piston B8 by axial limiting and being rotatably connected on.The chassis for parking screw rod B3-1, which is provided with unthreaded hole, unthreaded hole, is provided with retaining spring B12 and pin B11, and retaining spring B12 is used to position pin B11, pin Nail B11 hemispherical nose B11-1 protrudes from bottom surface, parks piston concave region B8-1 just to pin hemispherical nose B11-1's Position is provided with hemispherical groove B8-2.Pin B11 and when parking piston contact and rotating, its hemispherical nose B11-1 is in hemisphere Rotated in connected in star B8-2, rotational resistance can be reduced.The swivel nut B2 that parks is connected to the top for parking screw rod B3, parks swivel nut B2, which is protruded upward, parks cylinder cap B4.The ratchet B5 is connected on the central tube B4-1 for parking cylinder cap B4.The top of the ratchet B5 Face and parking is connected by up-thrust bearing B6 between cylinder cap B4, and ratchet B5 is by axial limiting and can rotate.It is described to park accumulation of energy bullet Spring B7 is connected between ratchet B5 and lower spring cup B10.

The controlling organization of parking includes sphenoid B14 and thrust sleeve B15.Led in addition, the intermediate A 1 has a pair To bolt hole, office is in upper and lower sides, and the left and right sides of intermediate A 1, which is respectively provided with two windows, window, is provided with bearing bracket stand B18, bearing bracket stand B18 is upper to be connected with bearing B17 by bearing pin, and bearing B17 protrudes from the leading flank of intermediate A 1, and bearing B17 outer peripheral surface is cunning Row face.The thrust sleeve B15 is respectively provided with bearing bracket stand B15-1, bearing bracket stand B15-1 provided with a pair of engaging lug B15-2, left and right sides Bearing B17 is connected with by bearing pin B17-1, bearing B17 protrudes from thrust sleeve B15 trailing flank, and bearing B17 outer peripheral surface is cunning Row face.The thrust sleeve B15 moves engagement sleeves on the central tube A1-1 of intermediate, and thrust sleeve B15 passes through on two engaging lug B15-2 Pin shaft hole be connected with two guide blot B16, two guide blot B16 gap fit through guide blot in intermediate A 1 respectively Hole, is connected with brake piston A12.

The sphenoid B14 has two pull bar B14-2, and sphenoid B14 bottom has screw rod B14-1, two pull bar B14-2 Leading flank there is lozenges B14-2a.Sphenoid B14 is connected to using screw rod B14-1 and parked on swivel nut B2.Sphenoid B14's Two pull bar B14-2 are inserted between thrust sleeve B15 and intermediate A 1, and two pull bar B14-2 lozenges B14-2a is attached to thrust respectively On two planing surfaces for covering B15, two pull bar B14-2 trailing flank is attached on two planing surfaces of intermediate A 1 respectively.Sphenoid B14's Bottom and park between cylinder cap B4 provided with a pair of sphenoid back-moving spring B13, sphenoid back-moving spring B13 one end insertion wedge shape In the blind hole of body B14 bottoms, the other end is enclosed on the spring stack B19 for parking cylinder cap B4.When sphenoid B14 is moved downward, utilize Slope driving thrust sleeve B15 is moved horizontally, and vertical forces are changed into horizontally power, and the force value of horizontal direction power More than the force value of vertical forces, that is, increase parking brake power.The setting of planing surface, reduces and promotes resistance.

See Figure 20 and Figure 21, the hand alleviates device C, and there is the upper hand being connected between on body A1 to alleviate body C1, hand Alleviating body C1 has the cavity of bottom opening, and top has cord hole, and the upper end that hand alleviates body C1 is connected with hand alleviation body Sheath C9.Hand is alleviated in body C1 cavity provided with pin C2 is drawn, and draws pin C2 by drawing pin rod body C2-1 and draws pin main body C2-2 to constitute, Draw pin rod body C2-1 provided with pin back-moving spring C3 is drawn, drawing pin back-moving spring C3 upper end is supported and hand is alleviated on body C1 roof Or be arranged on the sealing ring of cord hole mouthful, draw pin main body C2-2 to be provided with breach C2-2s, the top of breach wall is arc surface C2- 2a, the bottom of breach wall is provided with insertion cylinder on inclined-plane C2-2b, breach wall from arc surface C2-2a to inclined-plane C2-2b lower end Axial groove C2-2c.Rolling member C4 is provided with breach C2-2s, rolling member C4 includes two bearings C4-1 and is connected to by bearing pin Hand between two bearings C4-1 alleviates movable block C4-2, and the arc surface C2-2a and rolling member C4 of breach wall bearing coincide.Hand delays Angular drag hook C7 is connected with solution movable block C4-2 centre bore, drag hook C7 is by drawing the axial groove C2-2c of pin and parking cylinder Body B1 opening is deeply parked in cylinder body B1 and is interlockingly connected by the window for parking cylinder cap B4 with ratchet B5, parks the interior of cylinder body B1 Corner of the opening provided with drag hook spring base C6, drag hook C7 inserted for drag hook is surrounded on wall and is provided with spring retainer platform C7-1, is drawn Hook C7 is provided with the drag hook back-moving spring C8 being placed between spring base C6 and spring retainer platform C7-1.Draw pin C2 cavity bottom Portion is provided with gland C5.It is connected with the cord hole for drawing pin rod body C2-1 on link block C10, link block C10 and is fixed with two opening spiral shells Nail, each opening mode connects for screw has hand to alleviate drawstring C11, and the apical pore that hand alleviation drawstring C11 alleviates body sheath C9 by hand is stretched Go out.When drawing pin C2 to move up, using drawing the inclined-plane C2-2b for selling C2 to be pulled outwardly drag hook C7, drag hook C7 is set to depart from ratchet B5, pine Open hand and alleviate drawstring 31, in the case where drawing the C3 effects of pin back-moving spring, draw pin CB to reset.

When the gap between brake disc and brake lining is in normal range (NR)（3-6mm）, when implementing braking maneuver, compressed air Enter brake cylinder casing A8 from brake cylinder casing A8 air inlet, promote piston A12 and drive piston tube A11, piston lid A4, tapered sleeve A5-4 is travelled forward, and release spring A10 is compressed, and is driven by the guiding nut A5-1 engaged with tapered sleeve A5-4 before adjustment axis A2 Stretch, resistance adjusts component A6 and adjusting nut component A7 to be travelled forward with adjustment axis A2, so as to promote lever to implement braking maneuver. When implementing to alleviate, in the presence of release spring A10, compressed air discharge, piston component resets backward, passes through guiding nut Component A5 drives adjustment axis A2 to retreat reset, and resistance adjusts component A6 and section nut assembly A7 to be resetted with piston component, so as to drive thick stick Bar implements alleviation action.During whole " braking-alleviation ", relative positions of the adjusting nut component A7 on adjustment axis A2 axial directions Put constant, that is, before and after acting, the screw thread pin-and-hole A13-1 of brake cylinder casing screw thread pin-and-hole A8-1 and yoke spacing does not change, because Gap between this brake disc and brake lining is not adjusted.

When the gap between brake disc and brake lining exceeds normal range (NR)（>6mm）, when implementing braking maneuver, by piston Component drives adjustment axis A2 to protract by guiding nut A5-1, and the guide groove A1-1a on central tube A1-1 is touched as square key A7-5 Anterior end surface when, because brake disc and brake lining gap are excessive, piston component drives adjustment axis will be after by guiding nut A5-1 It is continuous to travel forward, and now square key A7-5 movement suffers restraints, the cone tooth sliding sleeve A7-4 in adjusting nut component A7 can not yet Continue to move with adjustment axis A2, but adjusting nut A7-1 moves forward under adjustment axis A2 drive, causes to bore tooth sliding sleeve Cone tooth on A7-4 is disengaged with the cone tooth A7-1s on the A7-1b of adjusting nut tapering, that is, is relieved the cone tooth sliding sleeve A7-4 flank of tooth and exchanged The constraint of nut A7-1 rotary freedoms is saved, in the presence of regulation spring A7-2, adjusting nut A7-1 starts around adjustment axis A2 Rotation.Adjustment axis A2 is moved forward in the presence of guiding nut A5-1, realizes braking, now, and adjustment axis A2 is relative to be adjusted Section nut A7-1 is forward extended out.When implementing to alleviate, in the presence of release spring A10, compressed air discharge, piston component band Dynamic adjustment axis A2 is moved backward.Adjusting nut A7-1 is under regulation spring A7-2 effects, the cone tooth A7-1s on the A7-1b of its tapering Still engaged with the cone tooth on cone tooth sliding sleeve A7-4, it is impossible to rotate, therefore resetted with adjustment axis A2 to rear side, until Square key A7-5 is contacted with the back end surface of the guide groove A1-1a on central tube A1-1, due in the relative tune of deboost phase adjustment axis A2 Nut A5-1 is saved to stretch out, so piston component does not reset completely, in the presence of release spring A10, piston component still need to after Continuous to reset, but can not be relatively rotated between adjusting nut A7-1 and adjustment axis A2, then adjustment axis A2 can not further sidesway backward Dynamic, now, guide springs A5-2 is compressed, and tapered sleeve A5-4 is promoted by piston lid A4, tapered sleeve A5-4 inner cone tooth A5-4s Disengaged with guiding nut A5-1 cone tooth, so that constraint of the tapered sleeve flank of tooth to guiding nut A5-1 rotary freedoms is relieved, In the presence of guide springs A5-2, guiding nut A5-1 starts to rotate around adjustment axis, and piston component drives guiding nut A5-1 phases For adjustment axis, further side is moved backward, finally realizes the complete reset of piston.During whole " braking-alleviation ", adjust Save relative positions of the nut assembly A7 on adjustment axis axial direction to change, the screw thread pin-and-hole of cylinder body screw thread pin-and-hole A8-1 and yoke A13-1 spacing changes, therefore the gap shrinks between brake disc and brake lining.After multiple " braking-alleviation ", final system Gap between Moving plate and brake lining will stabilise in normal range (NR).

Because brake force is larger in braking procedure, lever can be made to produce certain elastic deformation, lever deformation makes adjustment axis Stretch out quantitative change big, it may occur that the gap adjustment in braking procedure, so may result in disc gap and diminish.

When producing lever deformation, because adjustment axis A2 is promoted forward, square key A7-5 touches the guide groove A1-1a of central tube Cone tooth on anterior end surface, cone tooth sliding sleeve A7-4 is disengaged with the cone tooth A7-1s on the A7-1b of adjusting nut tapering, during this, Adjustment axis A2 can be deformed the resistance produced by lever, and this resistance promotes tapered sleeve by guiding nut A5-1, and tapered sleeve A5-4 exists Spring A6-3 is adjusted in radial movement compresses resistance on piston lid A4, and tapered sleeve A5-4 extension outer tube A5-4a, which will hinder, adjusts pad A6-2 tight It is attached to resistance to adjust on guide bracket A6-1, makes resistance adjust pad A6-2 not rotate, because pad A6-2 and adjusting nut A7-1 types face is adjusted in resistance Connection, so can not still be rotated during adjusting nut A7-1 disengagements, so that gap adjustment when preventing the lever to deform.When resistance disappears Lose, adjust spring A6-3 to help to reset by resistance.

When train is in parking braking, air in cylinder body B1 is parked in discharge, is parked piston B8 and is being parked energy-storaging spring B7's Moved downward under effect.Now, drag hook C7 links closely ratchet (be not carried out hand alleviation), prevents ratchet B5 from rotating, causes Parking energy-storaging spring B7 and lower spring cup B10 can not rotate under ratchet B5 constraint, and lower spring cup B10 is by the conical surface with parking Swivel nut B2 is contacted, and prevents to park screw rod B3 from rotating, and axial displacement is not produced between swivel nut B2 so as to park screw rod B3 and park, Sphenoid B14 is moved with parking piston B8 downwardly together.The sphenoid B14 moved downward utilizes its inclined-plane by thrust sleeve B15 Eject forward, while integrally being pulled out unit brake cylinder piston component by guide blot B16, so that adjusting shaft member side forward Mobile, activation lever realizes parking braking.

Under parking braking state, compressed air is filled with to parking in cylinder body B1, piston B8 compressions is parked and parks accumulation of energy bullet Spring B7 is moved upwards.Sphenoid B14 is also moved upwardly together therewith, and realizes wedge in the presence of sphenoid back-moving spring B13 Body B14 complete reset.Due to moving up for sphenoid, in the presence of release of brake spring A10, brake unit piston component Thrust sleeve B15 is pulled to reset, so as to realize that the inflation of parking braking is alleviated.

Under parking braking state, pull hand to alleviate drawstring C11, draw pin C2 to drive drag hook C7 to disengage ratchet B5, so as to solve Except to ratchet and parking the constraint of screw rod rotary freedom.In the presence of sphenoid back-moving spring B13, screw rod rotation is parked Turn, sphenoid B14 drives are parked swivel nut B2 and moved upwards, meanwhile, in the presence of brake unit release spring, brake unit is lived Plug assembly pulls thrust sleeve B15 to reset, so as to realize the hand relieving of parking braking.

After hand relieving operation is carried out, if rethinking using function is parked, first have to, to inflation in cylinder is parked, park work Plug is parked energy-storaging spring B7 by lower thrust-bearing B9, lower spring cup B10 compression and moved upwards.Now, due to parking swivel nut B2 It is connected with sphenoid B14 motionless, parking screw rod B3 will move upwards, parks swivel nut B2 downward to screw rod B3 mono- is parked Active force disengages the contact surface for parking screw rod B3 and lower spring cup B10, parks screw rod B3 by shop bolt B11 and parks work The semi-spherical grooves B8-2 contacts of plug, so park piston and transmit the force to and park screw rod B3, park screw rod B3 and rotate upwards Motion, parks screw rod and screws reset with parking swivel nut.

Foundation brake cylinder regular maintenance in use, sometimes for the spacing between artificial adjustment brake lining and brake disc, Such as change brake lining.When needing to carry out hand-reset, spanner spinning reduction nut A15, reduction nut compressed waveform cushion are used Piece A14, jack-up is arranged on the end tooth set A2-s in adjustment axis, takes off the end-tooth that end tooth covers the end-tooth on A2-s and yoke A1 Open, relieve the constraint to adjustment axis A2 rotational freedoms, so as to drive adjustment axis to retract backward, realize hand-reset function.

Claims (15)

1. a kind of vehicle band Parking Brake Cylinders, including unit brake cylinder（A）With park cylinder（B）, unit brake cylinder（A）Including braking Cylinder body（A8）, intermediate（A1）, brake piston component, braking regulating member and yoke（A13）, intermediate（A1）It is connected to checking cylinder Body（A8）Front side, intermediate（A1）Provided with the central tube forward extended out（A1-1）；The brake piston component includes braking Piston（A12）, be connected to brake piston（A12）On brake piston pipe（A11）, be connected to brake piston pipe（A11）Front end Brake piston lid（A4）, brake piston pipe（A11）Pass through intermediate（A1）Central tube（A1-1）And both are dynamic cooperation；System Dynamic regulating member includes adjustment axis（A2）, guiding nut component（A5）, adjusting nut component（A7）；Adjustment axis（A2）It is arranged on work Plug pipe（A11）It is interior, guiding nut component（A5）With adjusting nut component（A7）It is arranged on adjustment axis（A2）On；The adjusting nut Component（A7）Including being threaded in adjustment axis（A2）On adjusting nut（A7-1）, the guiding nut component（A5）Including spiral shell Line is connected to adjustment axis（A2）On guiding nut（A5-1）, be enclosed on adjustment axis（A2）Above and in guiding nut（A5-1）Rear side Tapered sleeve（A5-4）The guide springs anterior with guiding nut is enclosed on（A5-2）, tapered sleeve（A5-4）Inner cone tooth（A5-4s）With drawing Guiding nut（A5-1）Cone tooth be engaging tooth；It is described to park cylinder（B）Including parking cylinder body（B1）, park piston component and park control Mechanism processed；It is characterized in that：The tapered sleeve of the braking regulating member（A5-4）With the piston lid of its periphery（A4）Type face is connected； In adjusting nut（A7-1）Tapering（A7-1b）Front side provided with extension inner tube（A7-1a）, tapered sleeve（A5-4）Rear side provided with prolonging Stretch outer tube（A5-4a）, tapered sleeve extension outer tube（A5-4a）It is enclosed on adjusting nut extension inner tube（A7-1a）Above and to be dynamic coordinate, tapered sleeve （A5-4）With adjusting nut（A7-1）Between provided with resistance adjust component（A6）, resistance tune component（A6）Guide bracket is adjusted including resistance（A6-1）, resistance Adjust pad（A6-2）Spring is adjusted with resistance（A6-3）, resistance tune guide bracket（A6-1）With the piston tube of its periphery（A11）Threaded connection, resistance is adjusted Pad（A6-2）Type face is connected to adjusting nut extension inner tube（A7-1a）Periphery, and in tapered sleeve extend outer tube（A5-4a）With Guide bracket is adjusted in resistance（A6-1）Between, spring is adjusted in resistance（A6-3）It is enclosed on tapered sleeve（A5-4）Extension outer tube（A5-4a）On, rear end is supported and hindered Adjust guide bracket（A6-1）；It is described to park cylinder（B）Park cylinder body（B1）It is connected between body（A1）Base on, park cylinder body（B1） On be connected with and park cylinder cap（B4）, park cylinder cap（B4）Center be provided with the central tube that extends downwardly from（B4-1）；It is described to park control Mechanism processed includes sphenoid（B14）And thrust sleeve（B15）, thrust sleeve（B15）Central tube of the dynamic engagement sleeves in intermediate（A1-1） On, thrust sleeve（B15）Pass through two symmetrical guide blots（B16）With brake piston（A12）Connection, the sphenoid（B14）'s Bottom is connected with brake piston component, sphenoid（B14）Top insertion thrust sleeve（B15）With intermediate（A1）Between, thrust Set（B15）Bottom and park cylinder cap（B4）Between provided with a pair of sphenoid back-moving springs（B13）.

2. vehicle band Parking Brake Cylinders according to claim 1, it is characterised in that：The tapered sleeve of the braking regulating member （A5-4）Outer peripheral face be provided with symmetrical two guide ledges（A5-4b）, piston lid（A4）Inwall is provided with and tapered sleeve（A5- 4）Two guide ledges（A5-4b）Two guide grooves of matching（A4-1）, tapered sleeve（A5-4）Pass through two guide ledges（A5-4b）With work Fill in lid（A4）Two guide grooves（A4-1）Move and coordinate and realize tapered sleeve（A5-4）With piston lid（A4）Type face connection.

3. vehicle band Parking Brake Cylinders according to claim 1, it is characterised in that：The resistance of the braking regulating member, which is adjusted, to be led Seat（A6-1）Centre bore there is countersunk, pad is adjusted in the resistance（A6-2）With radial flange（A6-2c）, resistance tune pad（A6- 2）Radial flange（A6-2c ）Guide bracket is adjusted in resistance（A6-1）Countersunk（A6-1b ）In.

4. vehicle band Parking Brake Cylinders according to claim 1, it is characterised in that：The tune of the braking regulating member Save nut extension inner tube（A7-1a）Surface provided with a pair of guide grooves（A7-1c）, resistance tune pad（A6-2）Inwall be provided with A pair of positioning boss（A6-2c）, resistance tune pad（A6-2）Two positioning boss（A6-2c）Extend inner tube with adjusting nut（A7- 1a）Two guide grooves（A7-1c）Move and coordinate and realize resistance and adjust pad（A6-2）Extend inner tube with adjusting nut（A7-1a）Type face Connection.

5. vehicle band Parking Brake Cylinders according to claim 1, it is characterised in that：The adjusting nut component（A7）Also wrap Include and be enclosed on adjusting nut（A7-1）On cone tooth sliding sleeve（A7-4）, be connected to cone tooth sliding sleeve（A7-4）On square key（A7-5）And It is arranged on adjusting nut（A7-1）On regulation spring（A7-2）, bore tooth sliding sleeve（A7-4）Adjusting nut（A7-1）Between provided with the Two bearings（A7-3）, bore tooth sliding sleeve（A7-4）On cone tooth and adjusting nut（A7-1）On tapering cone tooth（A7-1s）To nibble Close tooth, square key（A7-5）Pass through piston tube（A11）Guide groove（A11-1）Insert the central tube of intermediate（A1-1）Guide groove（A1- 1a）In.

6. vehicle band Parking Brake Cylinders according to claim 1, it is characterised in that：The piston component of parking includes being in Park cylinder body（B1）Interior parks piston（B8）, park energy-storaging spring（B7）, park screw rod（B3）, park swivel nut（B2）, lower bullet Spring abutment（B10）And ratchet（B5）, lower spring cup（B10）Piston is parked described in being rotatably connected on（B8）On, park screw rod（B3）It is dynamic It is connected to lower spring cup（B10）On, park swivel nut（B2）It is connected to and parks screw rod（B3）Top, park swivel nut（B2）Stretch upwards Go out to park cylinder cap（B4）, the ratchet（B5）It is rotatably connected on and parks cylinder cap（B4）Central tube（B4-1）On, it is described to park storage Can spring（B7）It is connected to ratchet（B5）With lower spring cup（B10）Between；The sphenoid（B14）Bottom be connected to and park spiral shell Set（B2）On.

7. vehicle band Parking Brake Cylinders according to claim 6, it is characterised in that：It is described park piston component park spiral shell Bar（B3）With chassis（B3-1）, lower spring cup（B10）With conical central hole（B10-1）, park screw rod（B3）Chassis （B3-1）It is placed in lower spring cup（B10）Conical central hole（B10-1）In, it is described to park piston（B8）Bottom centre has recessed Area（B8-1）, lower spring cup（B10）It is placed in and parks piston concave region（B8-1）In, lower spring cup（B10）Bottom and park work Fill in concave region（B8-1）Between by lower thrust-bearing（B9）Connection.

8. vehicle band Parking Brake Cylinders according to claim 7, it is characterised in that：The chassis for parking screw rod（B3-1） It is provided with unthreaded hole, unthreaded hole and is provided with pin（B11）, pin（B11）Hemispherical nose（B11-1）Bottom surface is protruded from, work is parked Fill in concave region（B8-1）Just to the hemispherical nose of pin（B11-1）Position be provided with hemispherical groove（B8-2）.

9. vehicle band Parking Brake Cylinders according to claim 6, it is characterised in that：The ratchet（B5）Bottom surface with parking Cylinder cap（B4）Between by up-thrust bearing（B6）Connection.

10. vehicle band Parking Brake Cylinders according to claim 6, it is characterised in that：The thrust sleeve（B15）Behind Both sides are respectively provided with circular arc planing surface, the intermediate（A1）Before both sides be respectively provided with circular arc planing surface, the sphenoid （B14）With two pull bars（B14-2）, sphenoid（B14）Bottom be provided with screw rod（B14-1）, sphenoid（B14）Utilize screw rod （B14-1）It is connected to and parks swivel nut（B2）On, two pull bars（B14-2）Leading flank there is lozenges（B14-2a）, sphenoid （B14）Two pull bars（B14-2）Insert thrust sleeve（B15）With intermediate（A1）Between, two pull bars（B14-2）Lozenges （B14-2a）It is attached to thrust sleeve（B15）Planing surface on, two pull bars（B14-2）Trailing flank be attached to intermediate（A1）Planing surface On.

11. vehicle band Parking Brake Cylinders according to claim 10, it is characterised in that：The thrust sleeve（B15）It is left and right Side is respectively provided with bearing bracket stand（B15-1）, bearing bracket stand（B15-1）In by bearing pin（B17-1）It is connected with bearing（B17）, bearing（B17）'s Outer peripheral surface is planing surface.

12. vehicle band Parking Brake Cylinders according to claim 10, it is characterised in that：The intermediate（A1）Provided with symmetrical Two windows, bearing bracket stand is provided with window（B18）, bearing bracket stand（B18）On bearing is connected with by bearing pin（B17）, bearing（B17）'s Outer peripheral surface is planing surface.

13. vehicle band Parking Brake Cylinders according to claim 1, it is characterised in that：The cylinder of parking has hand relieving Device（C）, hand relieving device（C）With being connected between body（A1）On hand alleviate body（C1）, hand alleviation body（C1） It is interior to be sold provided with drawing（C2）, draw pin（C2）By drawing pin rod body（C2-1）Main body is sold with drawing（C2-2）Composition, draws pin rod body（C2-1）On Back-moving spring is sold provided with drawing（C3）, draw the upper end of pin rod body to be connected with hand and alleviate drawstring（C11）, draw pin main body（C2-2）It is provided with Breach（C2-2s）, the top of breach wall is arc surface（C2-2a）, the bottom of breach wall is inclined-plane（C2-2b）, on breach wall from Arc surface（C2-2a）To inclined-plane（C2-2b）Lower end be provided with insertion cylinder axial groove（C2-2c）, breach（C2-2s）In be provided with Rolling member（C4）, rolling member（C4）On be connected with drag hook（C7）, drag hook（C7）By the axial groove for drawing pin（C2-2c）Deeply park Cylinder body（B1）It is interior, drag hook（C7）It is provided with drag hook back-moving spring（C8）.

14. vehicle band Parking Brake Cylinders according to claim 13, it is characterised in that：It is described to park cylinder body（B1）Inwall The upper opening inserted for drag hook that surrounds is provided with drag hook spring base（C6）, drag hook（C7）Corner be provided with spring retainer platform（C7- 1）, the drag hook back-moving spring（C8）It is placed in spring base（C6）With spring retainer platform（C7-1）Between.

15. vehicle band Parking Brake Cylinders according to claim 13, it is characterised in that：The rolling member（C4）By two bearings （C4-1）Be connected to two bearings（C4-1）Between hand alleviate movable block（C4-2）Composition, the drag hook（C7）Hand is connected to delay Solve movable block（C4-2）Centre bore in and pass through axial groove（C2-1b）Stretch out.