CN202732795U - Energy-storage-type park-unit brake cylinder - Google Patents
Energy-storage-type park-unit brake cylinder Download PDFInfo
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- CN202732795U CN202732795U CN 201220312267 CN201220312267U CN202732795U CN 202732795 U CN202732795 U CN 202732795U CN 201220312267 CN201220312267 CN 201220312267 CN 201220312267 U CN201220312267 U CN 201220312267U CN 202732795 U CN202732795 U CN 202732795U
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Abstract
The utility model discloses an energy-storage-type park-unit brake cylinder. The energy-storage-type park-unit brake cylinder comprises a unit brake cylinder part and a parking brake cylinder part; a brake piston comprises a piston body and a piton tube, wherein the piston body is matched with the internal wall of a brake cylinder body; one end of the brake cylinder body is fixedly connected with an intermediate; a release spring is arranged between the intermediate and the brake piston; the outer periphery of the piston tube is in sliding fit with the internal wall of a center tube of the intermediate; the piston tube is connected with an adjusting nut assembly and a guide nut assembly; a reset mechanism consists of a screw rod and a yoke; and the screw rod is connected with an adjusting nut and a guide nut through non-self-locking nuts. The parking brake cylinder part comprises a parking cylinder body, a parking piston, a parking adjusting nut, a parking spring, a guide pin, a gear ring, a hand braking sleeve, a ball assembly, a thrust ring, a piston tube cap and a manual slow-release device, wherein the parking cylinder body is provided with a second air inlet; and one end of the parking cylinder body is fixedly connected with the intermediate. The energy-storage-type park-unit brake cylinder has the advantages that a parking brake cylinder and a unit brake cylinder are integrated, the structure is compact, the volume is small, and the mounting is convenient.
Description
Technical field
The utility model relates to a kind of braking device of rail traffic vehicles, particularly a kind of unit brake cylinder that can realize rail traffic vehicles is implemented parking brake function.
Background technique
Nowadays air damping be widely used on the rail traffic vehicles, and brake cylinder then is a kind of device that gross vehicle airduct air pressure is delivered to the foundation brake part, thereby makes vehicle from moving to the static service brake of carrying out.Because inevitably there is leakage in air damping, can not keep railway locomotive on the line or parking for a long time in the storehouse, under the effect of the external force such as wind-force, ramp sliding force, easily cause vehicle to produce the unexpected car that slips, there is potential safety hazard, therefore rail traffic vehicles not only needs running braking function, also needs the parking brake function.
The track traffic parking brake is broadly divided into two large classes by action principle: 1. hand braking: hand braking is by rotating a manual control dish, through the sprocket wheel chain transmission, transmission lever on the pulling bogie also is applied to foundation brake, and then wheel is implemented braking; Opposite spin dashboard during alleviation is alleviated the parking brake effect by the reaction force of release spring.The shortcoming of hand brake device is to need human control, and installing space is large, and the difficult control of braking force size.2. energy storing brake: the action principle of energy storing brake then is stored energy when utilizing spring-compressed, release energy again during elongation by (generation spring force) thereby be applied on the bogie break and produce parking brake, air control is adopted in the compression of spring and elongation, therefore just include parking brake system in the air damping control system fully, greatly facilitate manipulation work.Existing loaded brake cylinder all is freestanding, and its shortcoming is that an independently unit brake cylinder should be arranged, and an independently Parking Brake Cylinders is arranged again, thereby volume is large, installation inconvenience.And the piston of parking of existing accumulation of energy Parking Brake Cylinders is directly installed on hand braking putting by non-self-locking thread, must all the time alleviation be drawn pin to pull out in the teeth groove of hand braking cover during alleviation.Park the cylinder inflation behind the hand relieving and the time also must draw pin to pull out alleviation, can not inflate otherwise park cylinder, park piston and can not arrive the tram and park spring energy-storage with compression, thereby lose its due function.
Summary of the invention
The energy-storage type park unit brake cylinder that the purpose of this utility model is to provide a kind of Parking Brake Cylinders and unit brake cylinder to integrate and compact structure, volume are little, be convenient to install.
The technological scheme that realizes above-mentioned purpose is: a kind of energy-storage type park unit brake cylinder, comprise unit brake cylinder part and Parking Brake Cylinders part two-part, described unit brake cylinder partly comprises brake cylinder, resetting-mechanism and clearance adjustment mechanism, described brake cylinder comprises that the brake cylinder casing that is provided with the first suction port and the brake piston that is arranged in the brake cylinder casing, described brake piston comprise the piston only that cooperates with the brake cylinder casing inwall and the piston tube of extending to a side from the piston only middle part; One end of described brake cylinder casing is fixedly connected with intermediate, is provided with release spring between the piston only of intermediate and brake piston; Described intermediate has center tube, and the center tube inwall of the periphery of the piston tube of brake piston and intermediate is slidingly matched, and stretch out outside the center tube end; Described resetting-mechanism comprises screw mandrel; Described clearance adjustment mechanism comprises that guiding nut forms and adjusting nut forms, and all is connected with the wire rod thread of resetting-mechanism by non-self-locking thread;
Described guiding nut forms and comprises the piston tube lid, guiding nut, guide springs, guiding nut bearing and tapered sleeve, piston tube lid and tapered sleeve all are connected with the piston tube inner hole thread, between guiding nut and the tapered sleeve cone match is arranged, guide springs places between piston tube lid and the guiding nut bearing, guide springs one end and piston tube lid offset, the other end offsets by guiding nut bearing and guiding nut, under the effect of guide springs, the guiding nut bearing promotes guiding nut and contacts with the conical surface between the tapered sleeve, the endoporus of guiding nut is shaped with non-self-locking thread, and is connected with the wire rod thread of resetting-mechanism;
Described adjusting nut forms and comprises adjusting nut, cone tooth sliding sleeve, Regulation spring and adjusting nut bearing, cone tooth sliding sleeve periphery and piston tube endoporus that adjusting nut forms are slidingly matched, there is key to place the guide hole of piston tube on the cone tooth sliding sleeve, key also is inserted in the guide hole of center tube simultaneously, so that cone tooth sliding sleeve can endwisely slip in piston tube but can not rotate, all be shaped with the cone tooth between cone tooth sliding sleeve and the adjusting nut, Regulation spring places between adjusting nut bearing and the cone tooth sliding sleeve, under the effect of Regulation spring, adjusting nut bearing and adjusting nut offset, so that the cone tooth of adjusting nut and cone tooth sliding sleeve engagement, the endoporus of adjusting nut is shaped with non-self-locking thread, and is connected with the wire rod thread of resetting-mechanism;
Described Parking Brake Cylinders partly comprises and is provided with the parking cylinder body, park piston, park adjusting nut, park spring of the second suction port, guide finger, hand braking grip assembly and hand relieving device; A described end of parking cylinder body is fixedly connected with intermediate, parks piston and is located at and parks in the cylinder body and be slidingly matched with it, parks spring and is against and parks between piston and the intermediate; Described guide finger is located to park and parks piston with constraint between piston and the intermediate and can only carry out straight line motion; Described hand braking grip assembly comprises hand braking cover, gear ring, ball assembly and throw-out collar, a part of inwall of hand braking cover and the center tube periphery of intermediate are slidingly matched, another part inner wall sleeve is on the piston tube of brake piston, and the outer wall of hand braking cover has non-self-locking thread; Be enclosed within on the piston tube of brake piston to described throw-out collar loose fit, clip the ball assembly between throw-out collar and the hand braking cover; Described throw-out collar and piston tube lid offset; Described gear ring is enclosed within outside the hand braking cover and with hand braking cover and is fixedly connected with; Described hand relieving device is installed in to be parked on the cylinder body, and hand relieving device has and draws pin and draw pin can be inserted in the teeth groove of gear ring;
The described adjusting nut of parking places in the center hole of parking piston, and by a conical surface with park piston and cooperate, and be enclosed within hand braking putting by non-self-locking thread; Park also to have compressed on the adjusting nut and park Regulation spring, the other end of parking Regulation spring has compressed thrust-bearing, thrust-bearing under the effect of parking Regulation spring with park piston and offset.
Described parking is equipped with jump ring on the piston, jump ring is pressed on the thrust-bearing.
Described gear ring and hand braking cover are fixed together by screw, or by interference fit or be fixedly connected by welding together.
Described hand relieving device also comprises alleviating and draws key seat, flap, stay cord assembly, connection set and spring, its medium pulling rope assembly draws pin by the connection set connection, draw pin to be inserted in alleviation draws in the pin-and-hole of key seat with being slidingly matched, flap is fixed on to alleviate and draws on the key seat, spring housing draw on the pin and an end with draw that step on the pin offsets, the other end offsets with flap, alleviate to draw key seat and park cylinder body to be fixed together by resilient key; Described connection set comprises lining, resilient pad, nuts and bolt, and two linings are inserted in respectively in the stay cord hole at stay cord assembly two ends, and bolt passes lining, adopt resilient pad, nut to fix after drawing the attachment hole of pin.
Described hand relieving device also comprises dirt-proof boot, an end of dirt-proof boot be fixed on draw on the pin, the other end is fixed on the flap.
Described resetting-mechanism also comprises yoke, reduction nut and Returnning spring, reduction nut is fixedly connected with screw mandrel by pin, between screw mandrel and reduction nut, yoke is housed, yoke and screw mandrel are slidingly matched, and there is end-tooth to be meshed, Returnning spring places between reduction nut and the yoke, and screw mandrel and yoke rely on end-tooth to mesh together under action of reset spring.
The technique effect that the utility model produces: after adopting the structure of technique scheme, loaded brake cylinder and unit brake cylinder organically closely can be integrated, by reasonable structural design cleverly, so that compact structure, volume little, be convenient to install, can realize service brake, also can realize parking brake, form a kind of integrated unit brake cylinder of parking function.The utility model is by the air pressure size variation of outside input the second suction port, and the spring energy storage effect of parking spring, make and park piston and require to carry out side-to-side movement according to parking, Lever type brake clamp (not being included in the utility model) action that drives the resetting-mechanism part and connect, with clamping and the loosening up of realization brake lining to brake disc, and then parking brake and the alleviation of realization vehicle.Because the utility model is built-in with and parks adjusting nut parking piston, and by a conical surface with park piston and contact, be equipped with thrust-bearing and park Regulation spring at the other end of parking adjusting nut, park adjusting nut and be directly installed on hand braking putting by non-self-locking thread, like this when Parking Brake Cylinders and unit brake cylinder all are in relieved state, need not to pull out to alleviate and draw pin to inflate Parking Brake Cylinders, so that it is compressed with energy storage to park spring.The utility model not only has conventional running braking function, also has the parking brake function.In addition, also have following characteristics:
1), parking brake possesses that inflation is alleviated, the function of bleeder brake, braking and alleviating precisely;
2), parking brake also possesses hand relieving function (drawing pin by pulling);
3), the parking brake function is integrated on the unit brake cylinder, compact structure takes up room little;
4), reliability and safe;
5), be convenient to dismounting, maintenance, debugging;
6), applicability is wide, needing can be widely used in the vehicle of parking brake, is particularly useful for rail traffic vehicles.
Description of drawings
Fig. 1 is the structural representation of energy-storage type park unit brake cylinder of the present utility model;
Phase diagram when Fig. 2 is the utility model realization parking brake function;
Phase diagram when Fig. 3 is the pneumatic alleviation of the utility model realization parking brake;
Phase diagram when Fig. 4 is the utility model realization parking brake hand relieving;
Fig. 5 is that the adjusting nut in the utility model forms schematic diagram;
Fig. 6 is that the guiding nut in the utility model forms schematic diagram;
Fig. 7 is that the piston of parking in the utility model forms schematic diagram;
Fig. 8 is the resetting-mechanism schematic diagram in the utility model;
Fig. 9 is the intermediate structure schematic diagram in the utility model;
Figure 10 is the left view of Fig. 9;
Figure 11 is the left view of Fig. 1;
Figure 12 is the structural representation of the hand relieving device among Figure 11.
Embodiment
The embodiment who provides below in conjunction with accompanying drawing is described in further detail the utility model.
Shown in Fig. 1 ~ 12, a kind of energy-storage type park unit brake cylinder of the present utility model, comprise unit brake cylinder part and Parking Brake Cylinders part two-part, described unit brake cylinder partly comprises brake cylinder 4, resetting-mechanism 21 and clearance adjustment mechanism, described brake cylinder 4 comprises that the brake cylinder casing 1 that is provided with the first suction port 1-1 and the brake piston 2 that is arranged in the brake cylinder casing 1, described brake piston 2 comprise the piston only 2-1 that cooperates with brake cylinder casing 1 inwall and the piston tube 2-2 that extends to a side from piston only 2-1 middle part; One end of described brake cylinder casing 1 is fixedly connected with intermediate 6, is provided with release spring 3 between the piston only 2-1 of intermediate 6 and brake piston 2; Described intermediate 6 has center tube 6-1, and the center tube 6-1 inwall of the periphery of the piston tube 2-2 of brake piston 2 and intermediate 6 is slidingly matched, and stretch out outside the center tube 6-1 end; Described resetting-mechanism 21 comprises screw mandrel 21-4; Described clearance adjustment mechanism comprises that guiding nut composition 22 and adjusting nut form 23, and all is threaded with the screw mandrel 21-4 of resetting-mechanism 21 by non-self-locking thread;
Described guiding nut forms 22 and comprises piston tube lid 22-1, guiding nut 22-4, guide springs 22-2, guiding nut bearing 22-3 and tapered sleeve 22-5, piston tube lid 22-1 and tapered sleeve 22-5 all are connected with piston tube 2-2 inner hole thread, there is conical surface M to cooperate between guiding nut 22-4 and the tapered sleeve 22-5, guide springs 22-2 places between piston tube lid 22-1 and the guiding nut bearing 22-3, guide springs 22-2 one end and piston tube lid 22-1 offset, the other end offsets by guiding nut bearing 22-3 and guiding nut 22-4, under the effect of guide springs 22-2, guiding nut bearing 22-3 promotes guiding nut 22-4 and contacts with conical surface M between the tapered sleeve 22-5, the endoporus of guiding nut 22-4 is shaped with non-self-locking thread, and is threaded with the screw mandrel 21-4 of resetting-mechanism 21;
Described adjusting nut forms 23 and comprises adjusting nut 23-6, cone tooth sliding sleeve 23-7, Regulation spring 23-3 and adjusting nut bearing 23-4, cone tooth sliding sleeve 23-7 periphery and the piston tube 2-2 endoporus of adjusting nut composition 23 are slidingly matched, there is key 23-2 to place the guide hole 2-3 of piston tube 2-2 on the cone tooth sliding sleeve 23-7, key 23-2 also is inserted among the guide hole 6-2 of center tube 6-1 simultaneously, so that cone tooth sliding sleeve 23-7 can endwisely slip in piston tube 2-2 but can not rotate, all be shaped with cone tooth Z between cone tooth sliding sleeve 23-7 and the adjusting nut 23-6, Regulation spring 23-3 places between adjusting nut bearing 23-4 and the cone tooth sliding sleeve 23-7, under the effect of Regulation spring 23-3, adjusting nut bearing 23-4 and adjusting nut 23-6 offset, so that adjusting nut 23-6 and the cone tooth Z engagement of boring tooth sliding sleeve 23-7, the endoporus of adjusting nut 23-6 is shaped with non-self-locking thread, and is threaded with the screw mandrel 21-4 of resetting-mechanism 21;
Described Parking Brake Cylinders partly comprises and is provided with the parking cylinder body 27, park piston 9, park adjusting nut 10, park spring 7 of the second suction port 27-1, guide finger 8, hand braking grip assembly and hand relieving device 28; A described end of parking cylinder body 27 is fixedly connected with intermediate 6, parks piston 9 and is located to park in the cylinder body 27 and with it and is slidingly matched, and parks spring 7 and is against and parks between piston 9 and the intermediate 6; Described guide finger 8 is located to park and parks piston 9 with constraint between piston 9 and the intermediate 6 and can only carry out straight line motion; Described hand braking grip assembly comprises hand braking cover 15, gear ring 14, ball assembly 17 and throw-out collar 18, the center tube 6-1 periphery of a part of inwall of hand braking cover 15 and intermediate 6 is slidingly matched, another part inner wall sleeve is on the piston tube 2-2 of brake piston 2, and the outer wall of hand braking cover 15 has non-self-locking thread; Be enclosed within on the piston tube 2-2 of brake piston 2 to described throw-out collar 18 loose fits, clip ball assembly 17 between throw-out collar 18 and the hand braking cover 15; Described throw-out collar 18 offsets with piston tube lid 22-1; Described gear ring 14 is enclosed within outside the hand braking cover 15 and with hand braking cover 15 and is fixedly connected with; Described hand relieving device 28 is installed in to be parked on the cylinder body 27, and hand relieving device 28 has and draws pin 24 and draw pin 24 can be inserted in the teeth groove of gear ring 14;
The described adjusting nut 10 of parking places in the center hole of parking piston 9, and by a conical surface R with park piston 9 and cooperate, and be enclosed within on the hand braking cover 15 by non-self-locking thread; Park also to have compressed on the adjusting nut 10 and park Regulation spring 11, the other end of parking Regulation spring 11 has compressed thrust-bearing 12, thrust-bearing 12 under the effect of parking Regulation spring 11 with park piston 9 and offset.
As shown in Figure 5, form in 23 at adjusting nut, Regulation spring 23-3 one end offsets with cone tooth sliding sleeve 23-7, and the other end offsets by adjusting nut bearing 23-4, back-up ring 23-5 and adjusting nut 23-6.
Resetting-mechanism 21 in the utility model also can adopt the resetting-mechanism of prior art.
Shown in Fig. 1,7, described parking is equipped with jump ring 13 on the piston 9, and jump ring 13 is pressed on the thrust-bearing 12.
Shown in Fig. 1,2,3,4, described gear ring 14 is fixed together by screw 16 with hand braking cover 15, or by interference fit or be fixedly connected by welding together.
Shown in Fig. 1,12, described hand relieving device 28 also comprises alleviating and draws key seat 25, flap 37, stay cord assembly 36, connection set 29 and spring 35, its medium pulling rope assembly 36 draws pin 24 by connection set 29 connections, draw pin 24 to be inserted in alleviation draws among the pin-and-hole 25-1 of key seat 25 with being slidingly matched, flap 37 is fixed on to alleviate and draws on the key seat 25, spring 35 be enclosed within draw on the pin 24 and an end with draw that step on the pin 24 offsets, the other end offsets with flap 37, alleviate to draw key seat 25 and park cylinder body 27 to be fixed together by resilient key 26; Described connection set 29 comprises that lining 30, resilient pad 31, nut 32 and 33, two linings 30 of bolt are inserted in respectively in the stay cord hole at stay cord assembly 36 two ends, and bolt 33 passes lining 30, draw and adopt behind the attachment hole of pin 24 resilient pad 31, nut 32 fixing.
As shown in figure 12, described hand relieving device 28 also comprises dirt-proof boot 34, an end of dirt-proof boot 34 be fixed on draw on the pin 24, the other end is fixed on the flap 37.
As shown in Figure 8, described resetting-mechanism 21 also comprises yoke 21-1, reduction nut 21-2 and Returnning spring 21-5, reduction nut 21-2 is fixedly connected with screw mandrel 21-4 by pin 21-3, between screw mandrel 21-4 and reduction nut 21-2, yoke 21-1 is housed, yoke 21-1 and screw mandrel 21-4 are slidingly matched, and have end-tooth K to be meshed, Returnning spring 21-5 places between reduction nut 21-2 and the yoke 21-1, and screw mandrel 21-4 and yoke 21-1 rely on end-tooth K to mesh together under Returnning spring 21-5 effect.
Such as Fig. 1,6, shown in 8, the working principle of unit brake cylinder: when needing to brake in the rail traffic vehicles running, control system is to the first suction port 1-1 incoming pressure air of brake cylinder casing 1, promote brake piston 2 to left movement, be fixedly connected on tapered sleeve 22-5 on the piston tube 2-2 in the lump to left movement by screw thread simultaneously, tapered sleeve 22-5 promotes guiding nut 22-4, because the effect of conical surface M, guiding nut 22-4 is rotated by tapered sleeve 22-5 restriction, this moment, yoke 21-1 can not be rotated by lever (the utility model is not shown) constraint, and the rotation by end-tooth K restriction screw mandrel 21-4, therefore guiding nut 22-4 can promote screw mandrel 21-4, screw mandrel 21-4 passes to yoke 21-1 by end-tooth K with power and opens to left movement and the end that promotes lever-type clamp mechanism (the utility model is not shown), and the end that brake plate support is housed tightens up, the brake pad that is installed on the brake plate support is pressed on the brake disc rubbing surface that runs up closely, realizes service brake.
Braking process during normal brake lining gap: control system is to the first suction port 1-1 incoming pressure air of brake cylinder casing 1, promote brake piston 2 to left movement, be fixedly connected on tapered sleeve 22-5 on the piston tube 2-2 in the lump to left movement by screw thread simultaneously, tapered sleeve 22-5 promotes guiding nut 22-4, because the effect of conical surface M, guiding nut 22-4 is rotated by tapered sleeve 22-5 restriction, this moment, yoke 21-1 can not be rotated by the lever constraint, and the rotation by end-tooth K restriction screw mandrel 21-4, therefore guiding nut 22-4 can promote screw mandrel 21-4, screw mandrel 21-4 passes to yoke 21-1 to left movement by end-tooth K with power, simultaneously brake cylinder casing 1 relative motion to the right under the acting in opposition of air pressure, the both sides lever that yoke 21-1 and brake cylinder casing 1 promote respectively brake rigging clamps to brake disc, the adjusting nut that meanwhile is connected with screw mandrel 21-4 by non-self-locking thread forms 23 owing to the restriction of key 23-2 can not be rotated, therefore with screw mandrel 21-4 together to left movement, until key 23-2 stopped by guide hole 6-2 one end of intermediate 6, two side bitting clamps that this moment, yoke 21-1 and brake cylinder casing 1 promoted respectively brake rigging just clamp brake disc.
Such as Fig. 1,5,6, shown in 8, braking process when the brake lining gap is large: the gap between brake lining and brake disc increases because of wearing and tearing, when having exceeded the setting gap of unit brake cylinder, repeat above-mentioned braking process, the first suction port 1-1 incoming pressure air to brake cylinder casing 1, promote brake piston 2 to left movement, the both sides lever that promotes respectively brake rigging when yoke 21-1 and brake cylinder casing 1 clamps to brake disc, when eliminating a normal brake lining gap, the adjusting nut that is threaded with screw mandrel 21-4 by non-self-locking thread forms the guide hole 6-2 left end that key 23-2 on 23 just runs into intermediate 6 left, from then on boring tooth sliding sleeve 23-7 can not be to left movement, also can not rotate, still gapped between brake lining and the brake disc at this moment, brake piston 2 continues to left movement under the effect of air pressure, by piston tube 2-2, tapered sleeve 22-5, guiding nut 22-4, screw mandrel 21-4, yoke 21-1 continues to promote the foundation brake lever and clamps to brake disc, cause adjusting nut 23-6 under the effect of screw mandrel 21-4, to throw off with the cone tooth Z of cone tooth sliding sleeve 23-7 during to left movement, in case cone tooth Z throws off, adjusting nut 23-6 turns round under the effect of Regulation spring 23-3 immediately, move right simultaneously, therefore behind the gap of eliminating normal size, adjusting nut forms 23 namely can not be with screw mandrel 21-4 to left movement, until brake lining clamps brake disc, screw mandrel 21-4 stops to left movement, and cone tooth Z meshes again; The first suction port 1-1 exhaust of brake cylinder casing 1 under the effect of control system during alleviation, brake piston 2 moves right under the effect of release spring 3, driving piston tube 2-2 also moves right, because guide springs 22-2 is pressed in guiding nut 22-4 on the tapered sleeve 22-5, so brake piston 2, piston tube 2-2, guide springs 22-2, guiding nut 22-4, tapered sleeve 22-5, screw mandrel 21-4, yoke 21-1 etc. moves right together, meanwhile, adjusting nut forms 23 and also moves right under screw mandrel 21-4 thrust to the right, when brake lining leaves brake disc and reaches normal clearance, key 23-2 motion is to the right just stopped by the guide hole 6-2 right-hand member of intermediate 6, adjusting nut forms 23 can not be continued to move right, adjusting nut 23-6 can not rotate and can not move right this moment, cause screw mandrel 21-4 not move right, whole resetting-mechanism 21 remains on the normal clearance position, because this moment, brake piston 2 did not reset fully, to under the effect of release spring 3, continue to move right, drive piston tube 2-2, tapered sleeve 22-5 moves right, because screw mandrel 21-4 is motionless, guide springs 22-2 is compressed, conical surface M between guiding nut 22-4 and the tapered sleeve 22-5 throws off, immediately rotation and with brake piston 2 under the effect of guide springs 22-2 of guiding nut 22-4, piston tube 2-2, tapered sleeve 22-5 etc. moves right together, until brake piston 2 arrives the release position.
The working principle of parking brake cylinder portion of the present utility model is as follows:
Rail vehicle is in running, and control system is parked piston 9 compressions and parked spring 7 to energy accumulating state to the second suction port 27-1 incoming pressure air of parking cylinder body 27, and whole Parking Brake Cylinders is in off working state.
Such as Fig. 2,6,7, shown in 8, when rail traffic vehicles needs parking brake, pressure air is discharged from the second suction port 27-1 that parks cylinder body 27, parking spring 7 releases energy and promotes to park piston 9 to left movement, park piston 9 and promote to park adjusting nut 10 toward left movement by conical surface R, because parking adjusting nut 10 is to be connected by non-self-locking thread with hand braking cover 15, therefore, park adjusting nut 10 and promote hand braking cover 15 toward left movement, because gear ring 14 links together by screw 16 with hand braking cover 15, so, hand braking cover 15 drives gear ring 14 to left movement, and gear ring 14 and hand braking cover 15 promotion ball assemblies 17 and throw-out collar 18 are to left movement, throw-out collar 18 promotes brake piston 2 to left movement by piston tube lid 22-1, brake piston 2 drives the tapered sleeve 22-5 of fixed connection on piston tube 2-2 more in the lump to left movement, tapered sleeve 22-5 promotes guiding nut 22-4, because the effect of conical surface M, guiding nut 22-4 is rotated by tapered sleeve 22-5 restriction, thereby promote screw mandrel 21-4, screw mandrel 21-4 passes to yoke 21-1 by end-tooth K with power and opens to left movement and the end that promotes lever-type clamp mechanism, and the end that brake plate support is housed tightens up, be pressed in closely on the brake disc rubbing surface and produce braking force being installed in brake pad on the brake plate support, realize parking brake.
Like this, the present invention both can realize service brake, also can realize parking brake.
When rail traffic vehicles needs to alleviate under the parking brake state, then there are two kinds of approach to realize, its working principle is as follows:
1), inflation is alleviated
Shown in Fig. 3,7,6, be filled with certain pressure air by the second suction port 27-1 that parks cylinder body 27, promotion is parked piston 9 compression and is parked spring 7 and move right, owing to drawing pin 24 to be inserted in the teeth groove of gear ring 14 always, gear ring 14 and hand braking cover 15 are again to be fixed with one by screw 16, do not move so gear ring 14 and hand braking cover 15 neither rotate also; When parking piston 9 and moving right, jump ring 13 promotes thrust-bearing 12 and moves right, because the effect of conical surface R, parking adjusting nut 10 can not rotate, be connected by non-self-locking thread with hand braking cover 15 because parking adjusting nut 10 again, therefore parking adjusting nut 10 neither rotates also not mobile, at this moment move right along with parking piston 9, park Regulation spring 11 compressed, conical surface R throws off thereupon, at this moment park adjusting nut 10 and tie up to rotation on the hand braking cover 15 in the pass that connects because of non-self-locking thread under the effect of parking Regulation spring 11, also move right.Parking adjusting nut 10 does not have power to be added on the hand braking cover 15, this moment, brake piston 2 was owing to the effect of release spring 3 moves right, drive tapered sleeve 22-5 and move right, by guiding nut 22-4 power is passed to leading screw 21-4, drive whole resetting-mechanism part 21 and move right the realization alleviation; Simultaneously, piston tube lid 22-1 promotes throw-out collar 18 and ball assembly 17 moves right, ball assembly 17 and then promote hand braking cover 15 and move right, and hand braking cover 15 drives gear rings 14 and moves right, therefore whole Parking Brake Cylinders partial rcsponse returns to parking brake state before.
2), hand relieving
Such as Fig. 4,6, shown in 7, when not having air pressure, draw pin 24, the rotation restriction of gear ring 14 is cancelled, because gear ring 14 has been cancelled the rotation restriction, cause hand braking cover 15 under the effect of axial force, to rotate, brake piston 2 clamped at the effect of release spring 3 and clamp under the reaction force of brake disc and moved right this moment, and by piston tube lid 22-1, promoting throw-out collar 18 and ball assembly 17 is used in alleviation masterpiece to the right on the hand braking cover 15, so that hand braking cover 15 moves right, under the effect of parking spring 7, park simultaneously piston 9 has accelerated rotation from hand braking cover 15 to left movement, arrive to left and park cylinder body 27 until park piston 9, the active force of parking spring 7 is applied to be parked on the cylinder body 27, no longer be applied on the hand braking cover 15 by parking adjusting nut 10, brake piston 2 is also got back under the effect of release spring 3 and is alleviated the position, drives whole resetting-mechanism 21 and gets back to the release position and finish parking brake and alleviate action.
Claims (6)
1. energy-storage type park unit brake cylinder, comprise unit brake cylinder part and Parking Brake Cylinders part two-part, described unit brake cylinder partly comprises brake cylinder (4), resetting-mechanism (21) and clearance adjustment mechanism, described brake cylinder (4) comprises the brake cylinder casing (1) that is provided with the first suction port (1-1) and is arranged on the interior brake piston (2) of brake cylinder casing (1), it is characterized in that:
Described brake piston (2) comprises the piston only (2-1) that cooperates with brake cylinder casing (1) inwall and the piston tube (2-2) of extending to a side from piston only (2-1) middle part; One end of described brake cylinder casing (1) is fixedly connected with intermediate (6), is provided with release spring (3) between the piston only (2-1) of intermediate (6) and brake piston (2); Described intermediate (6) has center tube (6-1), and center tube (6-1) inwall of the periphery of the piston tube (2-2) of brake piston (2) and intermediate (6) is slidingly matched, and stretch out outside the center tube (6-1) end; Described resetting-mechanism (21) comprises screw mandrel (21-4); Described clearance adjustment mechanism comprises that guiding nut forms (22) and adjusting nut forms (23), and all is threaded with the screw mandrel (21-4) of resetting-mechanism (21) by non-self-locking thread;
Described guiding nut forms (22) and comprises piston tube lid (22-1), guiding nut (22-4), guide springs (22-2), guiding nut bearing (22-3) and tapered sleeve (22-5), piston tube lid (22-1) is connected 22-5 with tapered sleeve) all be connected with piston tube (2-2) inner hole thread, there is the conical surface (M) to cooperate between guiding nut (22-4) and the tapered sleeve (22-5), guide springs (22-2) places between piston tube lid (22-1) and the guiding nut bearing (22-3), guide springs (22-2) end and piston tube lid (22-1) offset, the other end offsets by guiding nut bearing (22-3) and guiding nut (22-4), under the effect of guide springs (22-2), guiding nut bearing (22-3) promotes guiding nut (22-4) and contacts with the conical surface (M) between the tapered sleeve (22-5), the endoporus of guiding nut (22-4) is shaped with non-self-locking thread, and is threaded with the screw mandrel (21-4) of resetting-mechanism (21);
Described adjusting nut forms (23) and comprises adjusting nut (23-6), cone tooth sliding sleeve (23-7), Regulation spring (23-3) and adjusting nut bearing (23-4), cone tooth sliding sleeve (23-7) periphery and piston tube (2-2) endoporus that adjusting nut forms (23) are slidingly matched, there is key (23-2) to place the guide hole (2-3) of piston tube (2-2) on the cone tooth sliding sleeve (23-7), key (23-2) also is inserted in the guide hole (6-2) of center tube (6-1) simultaneously, so that cone tooth sliding sleeve (23-7) can endwisely slip in piston tube (2-2) but can not rotate, all be shaped with cone tooth (Z) between cone tooth sliding sleeve (23-7) and the adjusting nut (23-6), Regulation spring (23-3) places between adjusting nut bearing (23-4) and the cone tooth sliding sleeve (23-7), under the effect of Regulation spring (23-3), adjusting nut bearing (23-4) offsets with adjusting nut (23-6), so that adjusting nut (23-6) and cone tooth (Z) engagement of boring tooth sliding sleeve (23-7), the endoporus of adjusting nut (23-6) is shaped with non-self-locking thread, and is threaded with the screw mandrel (21-4) of resetting-mechanism (21);
Described Parking Brake Cylinders partly comprises and is provided with the parking cylinder body (27), park piston (9), park adjusting nut (10), park spring (7) of the second suction port (27-1), guide finger (8), hand braking grip assembly and hand relieving device (28); A described end of parking cylinder body (27) is fixedly connected with intermediate (6), parks piston (9) and is located at and parks in the cylinder body (27) and be slidingly matched with it, parks spring (7) and is against and parks between piston (9) and the intermediate (6); Described guide finger (8) is located to park and parks piston (9) with constraint between piston (9) and the intermediate (6) and can only carry out straight line motion; Described hand braking grip assembly comprises hand braking cover (15), gear ring (14), ball assembly (17) and throw-out collar (18), center tube (6-1) periphery of a part of inwall of hand braking cover (15) and intermediate (6) is slidingly matched, another part inner wall sleeve is on the piston tube (2-2) of brake piston (2), and the outer wall of hand braking cover (15) has non-self-locking thread; Be enclosed within on the piston tube (2-2) of brake piston (2) to described throw-out collar (18) loose fit, clip ball assembly (17) between throw-out collar (18) and the hand braking cover (15); Described throw-out collar (18) offsets with piston tube lid (22-1); Described gear ring (14) is enclosed within outside the hand braking cover (15) and with hand braking cover (15) and is fixedly connected with; Described hand relieving device (28) is installed in to be parked on the cylinder body (27), and hand relieving device (28) has and draws pin (24) and draw pin (24) can be inserted in the teeth groove of gear ring (14);
The described adjusting nut (10) of parking places in the center hole of parking piston (9), and by a conical surface (R) with park piston (9) and cooperate, and be enclosed within on the hand braking cover (15) by non-self-locking thread; Park also to have compressed on the adjusting nut (10) and park Regulation spring (11), the other end of parking Regulation spring (11) has compressed thrust-bearing (12), thrust-bearing (12) under the effect of parking Regulation spring (11) with park piston (9) and offset.
2. energy-storage type park unit brake cylinder according to claim 1, it is characterized in that: described parking is equipped with jump ring (13) on the piston (9), jump ring (13) is pressed on the thrust-bearing (12).
3. energy-storage type Parking Brake Cylinders according to claim 1 is characterized in that: described gear ring (14) is fixed together by screw (16) with hand braking cover (15), or by interference fit or be fixedly connected by welding together.
4. energy-storage type park unit brake cylinder according to claim 1, it is characterized in that: described hand relieving device (28) also comprises alleviating and draws key seat (25), flap (37), stay cord assembly (36), connection set (29) and spring (35), its medium pulling rope assembly (36) draws pin (24) by connection set (29) connection, draw pin (24) to be inserted in alleviation draws in the pin-and-hole (25-1) of key seat (25) with being slidingly matched, flap (37) is fixed on to alleviate and draws on the key seat (25), spring (35) is enclosed within and draws the upper and end of pin (24) and draw the step on the pin (24) to offset, the other end and flap (37) offset, and alleviate to draw key seat (25) and park cylinder body (27) to be fixed together by resilient key (26); Described connection set (29) comprises lining (30), resilient pad (31), nut (32) and bolt (33), two linings (30) are inserted in respectively in the stay cord hole at stay cord assembly (36) two ends, and bolt (33) passes lining (30), draw and adopt behind the attachment hole of pin (24) resilient pad (31), nut (32) fixing.
5. energy-storage type park unit brake cylinder according to claim 4, it is characterized in that: described hand relieving device (28) also comprises dirt-proof boot (34), an end of dirt-proof boot (34) is fixed on and draws that pin (24) is upper, the other end is fixed on the flap (37).
6. energy-storage type park unit brake cylinder according to claim 1, it is characterized in that: described resetting-mechanism (21) also comprises yoke (21-1), reduction nut (21-2) and Returnning spring (21-5), reduction nut (21-2) is fixedly connected with screw mandrel (21-4) by pin (21-3), between screw mandrel (21-4) and reduction nut (21-2), yoke (21-1) is housed, yoke (21-1) is slidingly matched with screw mandrel (21-4), and there is end-tooth (K) to be meshed, Returnning spring (21-5) places between reduction nut (21-2) and the yoke (21-1), and screw mandrel (21-4) relies on end-tooth (K) to mesh together with yoke (21-1) under Returnning spring (21-5) effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220312267 CN202732795U (en) | 2012-06-30 | 2012-06-30 | Energy-storage-type park-unit brake cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220312267 CN202732795U (en) | 2012-06-30 | 2012-06-30 | Energy-storage-type park-unit brake cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732795U true CN202732795U (en) | 2013-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220312267 Expired - Lifetime CN202732795U (en) | 2012-06-30 | 2012-06-30 | Energy-storage-type park-unit brake cylinder |
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| Country | Link |
|---|---|
| CN (1) | CN202732795U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103511517A (en) * | 2012-06-30 | 2014-01-15 | 南车戚墅堰机车车辆工艺研究所有限公司 | Energy storage type parking unit brake cylinder |
| CN105620508A (en) * | 2016-01-05 | 2016-06-01 | 中车株洲电力机车有限公司 | Tread brake unit and hand relieving device thereof |
| CN105799726A (en) * | 2014-12-31 | 2016-07-27 | 常州南车铁马科技实业有限公司 | Manual relieving mechanism for rail vehicle oil cylinder |
| CN106481701A (en) * | 2016-12-15 | 2017-03-08 | 常州中车铁马科技实业有限公司 | A kind of checking cylinder of the power of having enlarging function |
| WO2018108131A1 (en) * | 2016-12-15 | 2018-06-21 | 中车戚墅堰机车车辆工艺研究所有限公司 | Brake cylinder, brake clamp unit and rail vehicle |
| CN108644263A (en) * | 2018-08-13 | 2018-10-12 | 眉山中车制动科技股份有限公司 | A kind of air pressure retaining mechanism |
| CN112721991A (en) * | 2020-12-29 | 2021-04-30 | 青岛思锐科技有限公司 | Parking brake cylinder and brake caliper unit |
| CN113251089A (en) * | 2021-03-17 | 2021-08-13 | 眉山中车制动科技股份有限公司 | Unit brake cylinder with automatic parking function |
| WO2022142646A1 (en) * | 2021-01-04 | 2022-07-07 | 中车青岛四方车辆研究所有限公司 | Pneumatic brake cylinder and brake clamp unit |
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| CN103511517B (en) * | 2012-06-30 | 2015-12-16 | 南车戚墅堰机车车辆工艺研究所有限公司 | Energy-storage type park unit brake cylinder |
| CN103511517A (en) * | 2012-06-30 | 2014-01-15 | 南车戚墅堰机车车辆工艺研究所有限公司 | Energy storage type parking unit brake cylinder |
| CN105799726A (en) * | 2014-12-31 | 2016-07-27 | 常州南车铁马科技实业有限公司 | Manual relieving mechanism for rail vehicle oil cylinder |
| CN105620508A (en) * | 2016-01-05 | 2016-06-01 | 中车株洲电力机车有限公司 | Tread brake unit and hand relieving device thereof |
| US11097709B2 (en) * | 2016-12-15 | 2021-08-24 | Crrc Qishuyan Institute Co., Ltd. | Brake cylinder, brake clamp unit and rail vehicle |
| CN106481701A (en) * | 2016-12-15 | 2017-03-08 | 常州中车铁马科技实业有限公司 | A kind of checking cylinder of the power of having enlarging function |
| WO2018108131A1 (en) * | 2016-12-15 | 2018-06-21 | 中车戚墅堰机车车辆工艺研究所有限公司 | Brake cylinder, brake clamp unit and rail vehicle |
| CN106481701B (en) * | 2016-12-15 | 2018-12-14 | 常州中车铁马科技实业有限公司 | A kind of checking cylinder with power enlarging function |
| CN108644263A (en) * | 2018-08-13 | 2018-10-12 | 眉山中车制动科技股份有限公司 | A kind of air pressure retaining mechanism |
| CN108644263B (en) * | 2018-08-13 | 2023-07-04 | 眉山中车制动科技股份有限公司 | Pneumatic locking mechanism |
| CN112721991A (en) * | 2020-12-29 | 2021-04-30 | 青岛思锐科技有限公司 | Parking brake cylinder and brake caliper unit |
| CN112721991B (en) * | 2020-12-29 | 2022-05-17 | 中车制动系统有限公司 | Parking brake cylinder and brake caliper unit |
| WO2022142646A1 (en) * | 2021-01-04 | 2022-07-07 | 中车青岛四方车辆研究所有限公司 | Pneumatic brake cylinder and brake clamp unit |
| CN113251089A (en) * | 2021-03-17 | 2021-08-13 | 眉山中车制动科技股份有限公司 | Unit brake cylinder with automatic parking function |
| CN113251089B (en) * | 2021-03-17 | 2022-06-28 | 眉山中车制动科技股份有限公司 | Unit brake cylinder with automatic parking function |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130213 Effective date of abandoning: 20151216 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |