CN108662048A - A kind of retaining mechanism - Google Patents
A kind of retaining mechanism Download PDFInfo
- Publication number
- CN108662048A CN108662048A CN201810919350.6A CN201810919350A CN108662048A CN 108662048 A CN108662048 A CN 108662048A CN 201810919350 A CN201810919350 A CN 201810919350A CN 108662048 A CN108662048 A CN 108662048A
- Authority
- CN
- China
- Prior art keywords
- spring
- piston
- ratchet
- energy
- protecgulum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2127/00—Auxiliary mechanisms
- F16D2127/06—Locking mechanisms, e.g. acting on actuators, on release mechanisms or on force transmission mechanisms
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention provides a kind of retaining mechanisms, belong to braking equipment field, including protecgulum, energy-storaging spring, accumulation of energy spring abutment, park piston, ratchet assembly and resilient sleeve, accumulation of energy spring abutment is installed on protecgulum, piston is parked to be slidably connected with protecgulum, energy-storaging spring is installed on accumulation of energy spring abutment and parks between piston, energy-storaging spring, which enables accumulation of energy spring abutment and parks piston, has the trend being relatively distant from, ratchet assembly can be moved together with piston is parked, one end of resilient sleeve is provided with multiple conical surfaces, and ratchet assembly movement enables multiple conical surfaces shrink or open.Retaining mechanism provided by the invention can keep brake force, in braking, park piston be directed away under the action of energy-storaging spring accumulation of energy spring abutment direction movement enable the conical surface of resilient sleeve shrink, the conical surface is shunk forms chucking power to piston rod, play the purpose for preventing piston rod from retracting, to reach the function of brake force holding, the labor intensity of operating personnel is greatly alleviated.
Description
Technical field
The present invention relates to braking equipment fields, in particular to a kind of retaining mechanism.
Background technology
Usually configuration is a set of checking cylinder, a set of hand brake, checking cylinder completion row in railway wagon braking system
Vehicle brakes (service braking, emergency braking), is used when hand brake is typically parked in situations；Vehicle is in operational process
In, if you need to longer in the ramp residence time, braking action is lost to prevent checking cylinder from sewing generation natural remission, needs to tighten at this time
Hand brake；Parking on ramp prevents car slipping accident, need to tighten hand brake.It prevents vehicle from being blown off by strong wind, need to tighten hand braking
Machine.It tightens hand brake to need by an operation, especially vehicle operation, tens up to a hundred vehicles are parked on ramp, to complete hand
Brake operating, labor intensity are very big.
Invention content
The purpose of the present invention is to provide a kind of retaining mechanisms, to improve existing vehicle labor intensity when being braked
Too big problem.
The invention is realized in this way：
Based on above-mentioned purpose, the present invention provides a kind of retaining mechanism, including protecgulum, energy-storaging spring, accumulation of energy spring abutment, stop
Plug, ratchet assembly and resilient sleeve are let live, the accumulation of energy spring abutment is installed on the protecgulum, and the piston of parking is slided with the protecgulum
Connection, the energy-storaging spring be installed on the accumulation of energy spring abutment and it is described park piston between, the energy-storaging spring enables the accumulation of energy
Spring abutment and the piston of parking have the trend being relatively distant from, and the ratchet assembly is connect with the piston of parking, and the spine
Wheel assembly can be moved together with the piston of parking, and one end of the resilient sleeve is provided with multiple conical surfaces, multiple conical surfaces
Axial line around the resilient sleeve is arranged, and the ratchet assembly movement enables multiple conical surfaces shrink or open.
In an embodiment of the present embodiment：The ratchet assembly includes ratchet, resetting spring, spring pocket, spring
Seat, inclined wedge and two baffle rings are provided with card slot on the ratchet, and the card slot extends along the direction of axis line of the ratchet, institute
It states protecgulum and is connected in the card slot, the ratchet is slided along the card slot relative to the protecgulum, and the ratchet is provided with first
Convex block and through-hole, first convex block are located in the through-hole, and first convex block around the through-hole axial line in a ring,
The baffle ring is installed in the through-hole, and the baffle ring is coaxially disposed with the through-hole, and two baffle rings are located at described
Both sides of first convex block, and the baffle ring and first convex block interval are arranged, the spring base in a ring, and the spring base
Between the resetting spring and the baffle ring, one end of the resetting spring is connected to the spring base, the reset bullet
The other end of spring is connected to the spring pocket, and the resetting spring enables the spring base be connected to the baffle ring, the reset bullet
Spring enables the spring pocket that there is the trend moved towards first convex block, the inclined wedge and the spring pocket to be located at described
The both sides of first convex block, the inclined wedge are arranged with the coaxial ratchet, and the internal diameter of the inclined wedge is along far from first convex block
Direction gradually increase, the spring base and the inclined wedge are stuck in the through-hole by two baffle rings respectively, the elasticity
Set is installed in the ratchet, and the inclined wedge is connected to the conical surface.
In an embodiment of the present embodiment：The trapezoidal external screw thread of non-self-lock-ing is provided on the peripheral surface of the ratchet,
It is described park to be provided on piston be spirally connected and institute with the matched internal thread of the trapezoidal external screw thread of the non-self-lock-ing, the piston of parking
State ratchet.
In an embodiment of the present embodiment：The retaining mechanism further includes stop collar, and the stop collar is sheathed on
Described to park piston, the stop collar is parked positioned at described between piston and the accumulation of energy spring abutment, and the length of the stop collar is small
In the trapezoidal externally threaded length of the non-self-lock-ing.
In an embodiment of the present embodiment：One end of the card slot extends to the end face of the ratchet, the card
Slot includes two side walls, and a side wall passes through the axial line of the ratchet, another described sidewall slope setting, described in order
The width of card slot is gradually reduced along its direction that is recessed, the protecgulum and the ratchet flexible clamping, i.e., the described protecgulum and the spine
It can be shunk or extended radially with respect to the protecgulum along the protecgulum part of wheel clamping.
In an embodiment of the present embodiment：The second convex block, second convex block position are provided on the spring pocket
In one end of the spring pocket, second convex block is along the spring pocket that projects radially outward of the spring pocket, the spring
One end that set is provided with second convex block is arranged towards first convex block, and the resetting spring is sheathed on the spring pocket,
One end of the resetting spring is connected to the baffle ring, and the other end of the resetting spring is connected to second convex block.
In an embodiment of the present embodiment：The other end of the resilient sleeve is provided with mounting ring, the mounting ring
Diameter be less than the diameter of the resilient sleeve, be provided with screw thread in the mounting ring, the mounting ring is spirally connected and the energy storage spring
Seat.
In an embodiment of the present embodiment：Internal diameter of the spring pocket close to one end of second convex block is more than
The internal diameter of the spring pocket other end, the internal diameter at the spring pocket minimum is equal with the outer diameter of the mounting ring, the spring
The smallest end of set is connected between the accumulation of energy spring abutment and the resilient sleeve.
In an embodiment of the present embodiment：Clamping assembly is provided on the protecgulum, the clamping assembly includes
Pawl base, pawl, elastic component and draw ring, the pawl base are installed on the protecgulum, and the pawl connects with pawl base sliding
It connecing, the pawl is slided along the protecgulum radially with respect to the pawl base, and one end of the pawl is caught in the card slot,
The elastic component is installed between the pawl base and the pawl, and the elastic component enables the pawl have towards the card slot
Mobile trend, the draw ring are installed on the other end of the pawl.
In an embodiment of the present embodiment：The retaining mechanism further includes baffle ring, the outer ring clamping of the baffle ring
It is connected in the resilient sleeve in the inner ring of the protecgulum, the baffle ring.
Compared with prior art, the advantageous effect that the present invention realizes is：
Retaining mechanism provided by the invention can keep brake force, in braking, park piston in energy-storaging spring
Under the action of there is the trend for the direction movement for being directed away from accumulation of energy spring abutment, and the direction movement for being directed away from accumulation of energy spring abutment is certain
Distance, park piston driving ratchet assembly movement, ratchet assembly movement enables the conical surface of resilient sleeve shrink, general piston rod be pacify
In resilient sleeve, the conical surface is shunk forms chucking power to piston rod, plays the purpose for preventing piston rod from retracting, to reach system
The function that power is kept, greatly alleviates the labor intensity of operating personnel.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
The attached drawing of required practicality is briefly described in embodiment or description of the prior art, it should be apparent that, it is described below attached
Figure is some embodiments of the present invention, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 shows the schematic diagram for the retaining mechanism that the embodiment of the present invention 1 provides；
Signal when Fig. 2 shows the rail freight braking force holder of the offer of the embodiment of the present invention 2 in the braking state
Figure；
Fig. 3 shows signal of the rail freight braking force holder of the offer of the embodiment of the present invention 2 in relieved state
Figure；
Fig. 4 shows the connection diagram for the cylinder seat and cylinder body that the embodiment of the present invention 2 provides；
Fig. 5 shows the schematic diagram for the piston component that the embodiment of the present invention 2 provides；
Fig. 6 shows the piston schematic diagram that the embodiment of the present invention 2 provides；
Fig. 7 shows the partial schematic diagram for the piston that the embodiment of the present invention 2 provides；
Fig. 8 shows the schematic diagram for the piston rod that the embodiment of the present invention 2 provides；
Fig. 9 shows the partial schematic diagram for the piston rod that the embodiment of the present invention 2 provides；
Figure 10 shows the schematic diagram for the retaining mechanism that the embodiment of the present invention 2 provides；
Figure 11 shows the schematic diagram for the protecgulum that the embodiment of the present invention 2 provides；
Figure 12 shows the schematic diagram for parking piston that the embodiment of the present invention 2 provides；
Figure 13 shows the schematic diagram for the clamping assembly that the embodiment of the present invention 2 provides；
Figure 14 shows the schematic diagram for the ratchet assembly that the embodiment of the present invention 2 provides；
Figure 15 shows the schematic diagram for the ratchet that the embodiment of the present invention 2 provides；
Figure 16 shows the schematic diagram for the spring pocket that the embodiment of the present invention 2 provides；
Schematic diagram Figure 17 shows the resilient sleeve of the offer of the embodiment of the present invention 2 at the first visual angle；
Figure 18 shows schematic diagram of the resilient sleeve at the second visual angle of the offer of the embodiment of the present invention 2.
In figure：10- cylinder seats；11- is open；
20- cylinder bodies；
30- protecgulums；31- first segments；32- second segments；
40- retaining mechanisms；41- air inlet seats；42- parks piston；421- risers；422- transverse slats；43- accumulation of energy spring abutments；44-
Energy-storaging spring；45- chambers；46- resilient sleeves；461- buckling grooves；462- mounting rings；The 463- conical surfaces；47- ratchet assemblies；471- spine
Wheel；The first convex blocks of 4711-；4712- card slots；472- resetting springs；473- baffle rings；474- spring pockets；4741 second convex blocks；-
475- spring bases；476- inclined wedges；477- thrust bearings；
50- piston components；51- pistons；511- mounting portions；The clamping portions 512-；513- piston packings；514- leather cups are locked
Circle；515- guidance tapes；52- piston rods；521- push rod headstocks；522- push rods；523- endoporus；524- grooves；The inclined-planes 525-；
60- release springs；
70- clamping assemblies；71- pawl bases；72- pawls；73- elastic components；74- draw rings；
80- cavitys.
Specific implementation mode
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, above in conjunction in the embodiment of the present invention
Attached drawing, technical solution in the embodiment of the present invention clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of above the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it is to be understood that, the term of indicating position or position relationship is based on shown in attached drawing
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated equipment
Or element must have a particular orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be fixedly connected, or it is integral；It can be mechanical connection, can also be electrical connection；
It can be directly connected, can also can be indirectly connected through an intermediary the connection inside two elements or two elements
Interaction relationship.For the ordinary skill in the art, above-mentioned term can be understood at this as the case may be
Concrete meaning in invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be on or below second feature
Be in direct contact including the first and second features, can also include the first and second features not be in direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature second spy
Right over sign and oblique upper, or be merely representative of fisrt feature level height and be higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or be merely representative of fisrt feature level height
Less than second feature.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Embodiment 1
Referring to Fig.1, a kind of retaining mechanism 40, including protecgulum 30, energy-storaging spring 44, accumulation of energy spring abutment are present embodiments provided
43, piston 42, ratchet assembly 47 and resilient sleeve 46 are parked, accumulation of energy spring abutment 43 is installed on protecgulum 30, parks piston 42 and protecgulum 30
It is slidably connected, between energy-storaging spring 44 is installed on accumulation of energy spring abutment 43 and parks piston 42, energy-storaging spring 44 enables 43 He of accumulation of energy spring abutment
Parking piston 42, there is the trend that is relatively distant from, ratchet assembly 47 to be connect with piston 42 is parked, and ratchet assembly 47 can be with stopping
It lets live plug 42 to move together, one end of resilient sleeve 46 is provided with multiple conical surfaces 463, and multiple conical surfaces 463 are around the axle center of resilient sleeve 46
Line is arranged, and the movement of ratchet assembly 47 enables multiple conical surfaces 463 shrink or open.
Retaining mechanism 40 provided in this embodiment can keep brake force, in braking, park piston 42 and storing
There can be the trend for the direction movement for being directed away from accumulation of energy spring abutment 43 under the action of spring 44, and be directed away from accumulation of energy spring abutment 43
A certain distance is moved in direction, parks piston 42 and ratchet assembly 47 is driven to move, ratchet assembly 47 moves the cone for enabling resilient sleeve 46
Face 463 is shunk, and general piston rod 52 is mounted in resilient sleeve 46, and the conical surface 463 is shunk forms chucking power to piston rod 52, rises
To the purpose for preventing piston rod 52 from retracting the labour of operating personnel is greatly alleviated to reach the function of brake force holding
Intensity.
Embodiment 2
With reference to Fig. 2 to Figure 18, the present embodiment provides a kind of rail freight braking force holders, including cylinder seat 10, piston
Component 50, cylinder body 20, protecgulum 30, release spring 60 and retaining mechanism 40.
Refering to Fig. 4, cylinder seat 10 connect the cavity 80 for forming a sealing with cylinder body 20 and protecgulum 30, and piston component 50 delays
Solution spring 60 and retaining mechanism 40 are installed in the cavity 80, and opening 11 is provided in cylinder seat 10, and opening 11 is connected to cavity 80,
Piston component 50 is slidably connected with cylinder body 20, and piston component 50 can reciprocatingly slide in cavity 80, and retaining mechanism 40 is used for
Fixed piston component 50, the both ends of release spring 60 connect release spring 60 with piston component 50 and retaining mechanism 40 respectively enables work
Plug assembly 50 and retaining mechanism 40 have the trend being located remotely from each other.
Refering to Fig. 5 to Fig. 9, piston component 50 includes piston 51, piston packing 513 and piston rod 52, and piston 51 includes
Mounting portion 511 and clamping portion 512, clamping portion 512 is circumferentially disposed around mounting portion 511, and seal groove is provided on clamping portion 512,
Seal groove around clamping portion 512 axial line in a ring, piston packing 513 is connected in seal groove, piston rod 52 and mounting portion
511 connections.The one end of clamping portion 512 far from mounting portion 511 and the axial line of mounting portion 511 are vertically arranged.Clamping portion 512 is separate
One end of mounting portion 511 is equipped with guidance tape 515, and guidance tape 515 is wound in clamping portion 512.It is additionally provided with skin on clamping portion 512
Bowl retainer 514, leather cup retainer 514 are used for fixed piston sealing ring 513.
Endoporus 523 and push rod headstock 521 are provided on piston rod 52, push rod headstock 521 is located in endoporus 523, push rod cup
Seat 521 is welded in mounting portion 511.Endoporus 523 extends along the direction of axis line of piston rod 52, and the diameter of endoporus 523 is along piston
The direction of axis line of bar 52 is gradually reduced, and push rod headstock 521 is located at one end that endoporus 523 is relatively large in diameter.Push rod headstock 521 it is straight
Diameter is more than the minimum diameter of endoporus 523.The both ends of endoporus 523 extend respectively to the both ends of piston rod 52.It is arranged on piston rod 52
There is push rod 522, push rod 522 is inserted into piston rod 52 from the smaller one end of endoporus 523, and push rod 522 is located at one end in endoporus 523
It is connect with push rod headstock 521.The length of push rod 522 is more than the length of piston rod 52.
Multiple grooves 524 are provided on piston rod 52, multiple grooves 524 are set along the direction of axis line interval of piston rod 52
Set, groove 524 around piston rod 52 axial line in a ring.Side wall of the groove 524 close to the side of push rod headstock 521 is provided with tiltedly
Face 525, inclined-plane 525 enable the width of groove 524 be gradually reduced along its direction that is recessed.The minimum widith of groove 524 is more than adjacent
The distance between two grooves 524.The region of groove 524 is less than the half of the length of piston rod 52.
Refering to fig. 10, retaining mechanism 40 includes protecgulum 30, air inlet seat 41, energy-storaging spring 44, accumulation of energy spring abutment 43, parks work
Plug 42, ratchet assembly 47 and resilient sleeve 46, accumulation of energy spring abutment 43 are installed on protecgulum 30, park piston 42 and are slidably connected with protecgulum 30,
Between energy-storaging spring 44 is installed on accumulation of energy spring abutment 43 and parks piston 42, energy-storaging spring 44 enables accumulation of energy spring abutment 43 and parks piston 42
With the trend being relatively distant from, park between piston 42 and protecgulum 30 one chamber 45 of formation, the output end of air inlet seat 41 with
Chamber 45 is connected to, and ratchet assembly 47 is connect with piston 42 is parked, and ratchet assembly 47 can be moved together with piston 42 is parked, bullet
Property set 46 one end be provided with multiple conical surfaces 463, multiple conical surfaces 463 are arranged around the axial line of resilient sleeve 46, and ratchet assembly 47 moves
The multiple conical surfaces 463 of the command of execution shrink or open.
1 and Figure 12 refering to fig. 1, protecgulum 30 include first segment 31 and second segment 32, and first segment 31 forms a mounting hole, stops
The axial line that plug 42 is let live along mounting hole is slided relative to protecgulum 30, and second segment 32 is located at the end of first segment 31, and second segment
32 extending radially inwardly along first segment 31；It parks piston 42 and includes transverse slat 422 and riser 421, transverse slat 422 and ratchet assembly 47
Connection, energy-storaging spring 44 are connected to riser 421, and the one end of riser 421 far from transverse slat 422 is connected to first segment 31, and riser 421
Sealing ring is installed between first segment 31, the one end of second segment 32 far from first segment 31 is connected to transverse slat 422, transverse slat 422 with
It is also equipped with sealing ring between second segment 32.
Refering to fig. 13, clamping assembly 70 is provided on protecgulum 30, and clamping assembly 70 includes pawl base 71, pawl 72, elasticity
Part and draw ring 74, pawl base 71 are installed on protecgulum 30, and pawl 72 is slidably connected with pawl base 71, radial direction of the pawl 72 along protecgulum 30
Slided relative to pawl base 71, one end of pawl 72 is caught in card slot 4712, elastic component be installed on pawl base 71 and pawl 72 it
Between, elastic component enables pawl 72 that there is the trend moved towards card slot 4712, draw ring 74 to be installed on the other end of pawl 72.
Air pressure retaining mechanism 40 further includes baffle ring 473, and the outer ring of baffle ring 473 is connected in protecgulum 30, the inner ring card of baffle ring 473
It is connected to resilient sleeve 46, and accumulation of energy spring abutment 43 is between baffle ring 473 and energy-storaging spring 44.
4 and Figure 15 refering to fig. 1, ratchet assembly 47 includes ratchet 471, resetting spring 472, spring pocket 474, spring base
475, inclined wedge 476 and two baffle rings 473, ratchet 471 are provided with the first convex block 4711 and through-hole, and the first convex block 4711 is located at through-hole
It is interior, and the first convex block 4711 around through-hole axial line in a ring, baffle ring 473 is installed in through-hole, and baffle ring 473 is coaxially set with through-hole
It sets, two baffle rings 473 are located at the both sides of the first convex block 4711, and baffle ring 473 and the first convex block 4711 interval are arranged, spring
475 in a ring, and spring base 475, between resetting spring 472 and baffle ring 473, one end of resetting spring 472 is connected to bullet to seat
The other end of spring abutment 475, resetting spring 472 is connected to spring pocket 474, and resetting spring 472 enables spring base 475 be connected to baffle ring
473, resetting spring 472 enables spring pocket 474 have the trend towards the movement of the first convex block 4711, and inclined wedge 476 and spring pocket 474 divide
Not Wei Yu the first convex block 4711 both sides, inclined wedge 476 and ratchet 471 are coaxially disposed, and the internal diameter of inclined wedge 476 is along convex far from first
The direction of block 4711 gradually increases, and spring base 475 and inclined wedge 476 are stuck in through-hole by two baffle rings 473 respectively.
Wherein, through-hole is divided into two parts by the first convex block 4711, and the length of one end that through-hole is used to install spring pocket 474 is big
In or equal to the other end length.
Inclined wedge 476 is rotatablely connected with ratchet 471, and inclined wedge 476 is rotated along its axial line relative to ratchet 471.Ratchet assembly
47 further include two thrust bearings 477, and two thrust bearings 477 are respectively arranged in the both ends of inclined wedge 476, and inclined wedge 476 is by pushing away
Power bearing 477 is connect with ratchet 471.
Refering to fig. 16, the second convex block 4741 is provided on spring pocket 474, and the second convex block 4741 is located at the one of spring pocket 474
End, the second convex block 4741 project radially outward spring pocket 474 along spring pocket 474, and spring pocket 474 is provided with the second convex block 4741
One end be arranged towards the first convex block 4711, resetting spring 472 is sheathed on spring pocket 474, and one end of resetting spring 472 is connected to
The other end of baffle ring 473, resetting spring 472 is connected to the second convex block 4741.Before assembling, the second convex block 4741 is in resetting spring
It is connected under the action of 472 on first convex block 4711.
The length of spring pocket 474 is more than the distance between the first convex block 4711 and baffle ring 473.The outer diameter of spring base 475 with
The internal diameter of ratchet 471 is equal, and the internal diameter of spring base 475 is equal with the outer diameter of spring pocket 474.The outer diameter of second convex block 4741 is small
In the internal diameter of ratchet 471, and the outer diameter of the second convex block 4741 is more than the internal diameter of the first convex block 4711.Spring pocket 474 is close to second
The internal diameter of one end of convex block 4741 is more than the internal diameter of 474 other end of spring pocket.Resetting spring 472 is the spring in compressive state.
Refering to fig. 15, multiple card slots 4712 are provided on ratchet 471, and multiple card slots 4712 are around the axial line interval of through-hole
Setting, one end of card slot 4712 extends to the end face of ratchet 471, and card slot 4712 is located at one of ratchet 471 far from spring pocket 474
End.Card slot 4712 includes two side walls, and a side wall passes through the axial line of ratchet 471, and the setting of another sidewall slope enables card slot
4712 width is gradually reduced along its direction that is recessed.In this way, after having thing to be caught in card slot 4712, ratchet 471 can only be along one
Direction rotates.
The trapezoidal external screw thread of non-self-lock-ing, externally threaded center line and spring are provided on the peripheral surface of the other end of ratchet 471
The direction relatively moved between set 474 and ratchet 471 is parallel, parks and is provided on piston 42 and the trapezoidal external screw thread matching of non-self-lock-ing
The internal thread of conjunction parks piston 42 and is spirally connected and ratchet 471.When ratchet 471 rotates forward, ratchet 471 and to park piston 42 opposite
Mobile, when ratchet 471 rotates backward, ratchet 471 is located remotely from each other with piston 42 is parked, and card slot 4712 includes two side walls, one
Side wall passes through the axial line of ratchet 471, and the setting of another sidewall slope enables the width of card slot 4712 gradually subtract along its direction that is recessed
It is small, on the direction that ratchet 471 rotates forward, the forward sidewall slope setting of card slot 4712.In the present embodiment, in scheming from
Right clockwise direction to the left is forward direction, from right counter clockwise direction to be to the left reversed in scheming.
One end of 7 and Figure 18 refering to fig. 1, resilient sleeve 46 are provided with multiple conical surfaces 463, and multiple conical surfaces 463 are around resilient sleeve 46
The setting of axial line interval, multiple conical surfaces 463 form petal-shaped, and the end of each conical surface 463 is provided with the first protrusion, and first is convex
It rises towards the axial line of resilient sleeve 46 and is arranged.First protrusion extends along the direction of axis line of resilient sleeve 46, and resilient sleeve 46 is along remote
Direction from the conical surface 463 extends.
Buckling groove 461 is provided on the inner wall of resilient sleeve 46, buckling groove 461 is along the radially outward recess of resilient sleeve 46, card
Access slot 461 extends along the axial line of resilient sleeve 46, and the both ends of buckling groove 461 extend respectively to two end faces of resilient sleeve 46.
Buckling groove 461 is set as multiple, and multiple buckling grooves 461 are arranged around the axial line interval of resilient sleeve 46.Buckling groove 461 is set as 6
It is a.
The other end of resilient sleeve 46 is provided with mounting ring 462, and the diameter of mounting ring 462 is less than the diameter of resilient sleeve 46, peace
It is provided with screw thread on dress ring 462.Multiple second protrusions, axis of multiple second protrusions around mounting ring 462 are provided in mounting ring 462
Heart line interval is arranged, and the second protrusion projects radially outward mounting ring 462 along mounting ring 462.It is provided in mounting ring 462 scarce
Mouthful, notch around mounting ring 462 axial line in a ring, radially-inwardly recess of the notch along mounting ring 462.Notch and the second protrusion
Interval setting, and notch is located between the second protrusion and resilient sleeve 46.
The structure and mounting means of rail freight braking force holder provided in this embodiment are such：
Push rod headstock 521 is put into from 523 big end of endoporus of piston rod 52 in piston component 50, but cannot be scurried out from small end.
Piston rod 52 is weldingly connected with piston 51, and guidance tape 515 is mounted in the outer circle of piston 51, and sealing ring is mounted on the ditch of piston 51
In slot 524, leather cup retainer 514 locks sealing ring on piston 51.Specifically 52 excircle of piston rod has annular ditch groove
524, the resilient sleeve 46 when brake force is kept in retaining mechanism 40 blocks the protrusion, prevents piston rod 52 from retreating, and realizes locking.
Piston rod 52 can also be no raised, but polished rod, passes through increasing friction force (active force for increasing energy storage spring)
Piston rod 52 can be clamped motionless, play the role of parking.
Retaining mechanism 40 is connected by 6 bolts with cylinder seat 10.Air inlet seat 41 is welded on protecgulum 30, the pressure of train pipe
Power air is entered by the aperture of air inlet seat 41 parks 42 right side of piston, is the actuating signal of retaining mechanism 40.At protecgulum 30
Sealing ring is installed, completes the sealing for parking 42 right chamber 45 of piston, the chamber 45 jointly with the sealing ring parked on piston 42
It is known as parking cylinder chamber 45.
Accumulation of energy spring abutment 43 is threadedly coupled with protecgulum 30, and energy storage spring is pressed in the left side for parking piston 42, is installed at protecgulum 30
Baffle ring 473 prevents the rotation of accumulation of energy spring abutment 43 from exiting.Stop collar, which is through, to be parked on piston 42, and the decrement of energy storage spring is limited.
It is non-self-lock-ing trapezoidal thread to park 42 inner circle of piston, is engaged with the screw thread of the ratchet 471 in ratchet assembly 47.
In ratchet assembly 47, return spring set 474 is blocked by spring pocket 474 when installation, and spring is reconditioned before assembling and is pressed in
On ratchet 471, resetting spring 472 is blocked by baffle ring 473.Inclined wedge 476 is mounted on the right of ratchet 471,476 both sides of inclined wedge point
Other installed thrust bearing 477, is used in combination hole baffle ring 473 to block.
476 inner surface of inclined wedge and the conical surface 463 of resilient sleeve 46 coordinate, and inclined wedge 476 will be converted into radial load by axial force
And amplify, enlargement ratio is determined by the cone angle of inclined wedge 476, which promotes resilient sleeve 46 is radial to collapse.
471 outer circle of ratchet is non-self-lock-ing trapezoidal thread, engages with the screw thread for parking piston 42, has in another end outer circle
Tooth, towards 471 direction of ratchet, ratchet 471 can rotate counterclockwise, and show as 471 opposing pistons 51 of ratchet and stretch out to the right, up time
Needle can not be rotated due to there is the blocking of pawl 72.
Resilient sleeve 46 is threadedly coupled across ratchet assembly 4737 with accumulation of energy spring abutment 43, and resilient sleeve is blocked by specific purpose tool
466 card slots 4712 rotate, and baffle ring 473 prevents the rotation of resilient sleeve 46 from exiting.46 annular projection of resilient sleeve supports piston rod 52, prevents
Only 52 joining seam of piston rod, 46 protrusion seized piston bar 52 when parking (brake force holding) of resilient sleeve, forms parking brake (braking
It tries hard to keep and holds).Resilient sleeve 46 is in petal type, and the conical surface 463 is understood by after radial load to radial gathering.
Resilient sleeve 46 can also increase protrusion, by increasing the active force of energy storage spring, increase resilient sleeve 46 and light piston
The chucking power of bar 52 plays the purpose for preventing piston rod 52 from retracting, reaches the function of parking.
The mode of braking of rail freight braking force holder is that pressure air enters the left side of piston component 50, is pushed
Piston 51 is moved to braking direction (to the right), and brake force pushes push rod 522, push rod 522 to push basic system by push rod headstock 521
Dynamic device generates brake force.
The operation principle of rail freight braking force holder is in the present embodiment：
(1) unlocked state is inflated：
In the process of moving, the pressure air of train pipe is filled with by air inlet seat 41 parks 42 right side of piston, pressure to train
Contracting energy-storaging spring 44 is parked piston 42 and is no longer moved downward until stop collar limit, effect of the ratchet 471 in resetting spring 472
Under move downward, drive inclined wedge 476 to move downward, until ratchet 471 contacts accumulation of energy spring abutment 43, retaining mechanism 40 is in unlock shape
State, at this time piston rod 52 can move.
(2) it is vented lockup state：
When train braking, train pipe decrease in air pressure, what is be attached thereto parks the pressure reduction on the right side of piston 42, when
Pressure air act on park the power on piston 42 be not enough to balance energy storage spring active force when, energy storage spring promotion park piston 42
It moves right, parks piston 42 and push ratchet 471 to move right by screw thread engagement, since engagement screw thread is non-self-lock-ing screw thread,
Ratchet 471 has the trend rotated forward, but the card slot 4712 of 471 periphery of ratchet is limited by pawl 72, can not be rotated forward,
Ratchet 471 can only move right at this time with piston 42 is parked.During ratchet 471 moves right, pushes bearing and push away
Dynamic inclined wedge 476 moves right, and the inner surface of inclined wedge 476 is bonded with the conical surface 463 of resilient sleeve 46, in the effect of energy-storaging spring 44
Under, resilient sleeve 46 is radial to be collapsed, seized piston bar 52, and is against at the groove 524 of piston rod 52, and piston rod 52 cannot return
It moves back.Even if the pressure air in 51 left side of piston can be maintained at application position if having sewed piston rod 52 under the action of energy storage spring.
When train is alleviated, the air pressure in chamber 45 increases, and promotion is parked piston 42 and moved downward, until stop collar
Blocking cannot continue, while ratchet 471 drives inclined wedge 476 to retract, and complete the unlock of retaining mechanism 40.
(2) manual unlocking state：
Retaining mechanism 40, can also manual unlocking other than inflating and unlocking.Cylinder chamber is parked when not having pressure air to be filled with
45 (park piston 42 right side) and when needing unlock, pull draw ring 74, pawl 72 to leave the card slot 4712 of ratchet 471, ratchet 471
It rotates forward, and moves downward under the action of resetting spring 472, drive inclined wedge 476 to move downward, 46 conical surface of resilient sleeve
463 axial force disappears, and resilient sleeve 46 is restored, and resilient sleeve 46 disengages piston rod 52, effect of the piston rod 52 in release spring 60
Lower rollback, until piston 51 contacts cylinder seat 10.In the process, it parks piston 42 to move to right, until touching protecgulum 30, completes lock
Tight mechanism 40 unlocks.
In conclusion rail freight braking force holder provided by the invention utilizes after braking action occurs for vehicle
Train tube pressure, which declines, is used as signal, and by a set of retaining mechanism, cylinder body inner carrier is unable to return, and brake force is always maintained at, very
In the case of being zero to cylinder interior pressure air leakage, brake force is still always maintained at, and brake force holding is automatic.When
When needing to alleviate, air inlet seat inflation, retaining mechanism unlock, retentivity disappearance, checking cylinder alleviation.When train pipe cannot be inflated
Also it can unlock retaining mechanism by discharging draw ring, realize that checking cylinder is alleviated.
In addition, existing railway wagon braking the cylinder piston is mostly cast-iron piston, weight weight, assembling labour is by force
Degree is big, and especially when checking cylinder overhauls in each rolling stock section, due to being the operation under vehicle, working space is narrow, labor intensity bigger.
Piston in the present invention can be the steel plate punched using 7mm, and the more original cast-iron piston of piston component weight can decline 42%
(305 × 254 type checking cylinder).
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of retaining mechanism, which is characterized in that including protecgulum, energy-storaging spring, accumulation of energy spring abutment, park piston, ratchet assembly and
Resilient sleeve, the accumulation of energy spring abutment are installed on the protecgulum, and the piston of parking is slidably connected with the protecgulum, the energy-storaging spring
Be installed on the accumulation of energy spring abutment and it is described park piston between, the energy-storaging spring enables the accumulation of energy spring abutment and described parks piston
With the trend being relatively distant from, the ratchet assembly is connect with the piston of parking, and the ratchet assembly can stop with described
It lets live plug to move together, one end of the resilient sleeve is provided with multiple conical surfaces, and multiple conical surfaces are around the axle center of the resilient sleeve
Line is arranged, and the ratchet assembly movement enables multiple conical surfaces shrink or open.
2. retaining mechanism according to claim 1, which is characterized in that the ratchet assembly includes ratchet, resetting spring, bullet
Spring set, spring base, inclined wedge and two baffle rings are provided with card slot on the ratchet, and the card slot is along the axial line side of the ratchet
To extension, the protecgulum is connected in the card slot, and the ratchet is slided along the card slot relative to the protecgulum, and the ratchet is set
It is equipped with the first convex block and through-hole, first convex block is located in the through-hole, and first convex block is around the axle center of the through-hole
In a ring, the baffle ring is installed in the through-hole line, and the baffle ring is coaxially disposed with the through-hole, two baffle ring difference
Positioned at the both sides of first convex block, and the baffle ring is arranged with first convex block interval, the spring base in a ring, and institute
Spring base is stated between the resetting spring and the baffle ring, one end of the resetting spring is connected to the spring base, institute
The other end for stating resetting spring is connected to the spring pocket, and the resetting spring enables the spring base be connected to the baffle ring, institute
Stating resetting spring enables the spring pocket have the trend moved towards first convex block, the inclined wedge and spring pocket difference
Positioned at the both sides of first convex block, the inclined wedge is arranged with the coaxial ratchet, and the internal diameter of the inclined wedge is along far from described
The direction of first convex block gradually increases, and the spring base and the inclined wedge are stuck in the through-hole by two baffle rings respectively,
The resilient sleeve is installed in the ratchet, and the inclined wedge is connected to the conical surface.
3. retaining mechanism according to claim 2, which is characterized in that be provided with non-self-lock-ing ladder on the peripheral surface of the ratchet
Shape external screw thread, it is described park be provided on piston with the matched internal thread of the trapezoidal external screw thread of the non-self-lock-ing, it is described to park work
Plug is spirally connected and the ratchet.
4. retaining mechanism according to claim 3, which is characterized in that the retaining mechanism further includes stop collar, the limit
Piston is parked in position described in being sheathed on, and the stop collar is parked positioned at described between piston and the accumulation of energy spring abutment, the limit
The length of set is less than the trapezoidal externally threaded length of the non-self-lock-ing.
5. retaining mechanism according to claim 2, which is characterized in that one end of the card slot extends to the end of the ratchet
Face, the card slot include two side walls, and a side wall passes through the axial line of the ratchet, another described sidewall slope is set
It sets, the width of the card slot is enabled to be gradually reduced along its direction that is recessed, the protecgulum and the ratchet flexible clamping, i.e., the described protecgulum
It can be shunk or extended radially with respect to the protecgulum along the protecgulum with the part of ratchet clamping.
6. retaining mechanism according to claim 2, which is characterized in that the second convex block is provided on the spring pocket, it is described
Second convex block is located at one end of the spring pocket, and second convex block projects radially outward the spring along the spring pocket
Set, one end that the spring pocket is provided with second convex block are arranged towards first convex block, and the resetting spring is sheathed on
One end of the spring pocket, the resetting spring is connected to the baffle ring, and the other end of the resetting spring is connected to described
Two convex blocks.
7. retaining mechanism according to claim 6, which is characterized in that the other end of the resilient sleeve is provided with mounting ring,
The diameter of the mounting ring is less than the diameter of the resilient sleeve, is provided with screw thread in the mounting ring, the mounting ring be spirally connected with
The accumulation of energy spring abutment.
8. retaining mechanism according to claim 7, which is characterized in that the spring pocket is close to one end of second convex block
Internal diameter be more than the internal diameter of the spring pocket other end, the outer diameter phase of internal diameter and the mounting ring at the spring pocket minimum
Deng the smallest end of the spring pocket is connected between the accumulation of energy spring abutment and the resilient sleeve.
9. retaining mechanism according to claim 2, which is characterized in that be provided with clamping assembly, the card on the protecgulum
Tight component includes pawl base, pawl, elastic component and draw ring, and the pawl base is installed on the protecgulum, the pawl and the spine
Pawl seat is slidably connected, and the pawl is slided along the protecgulum radially with respect to the pawl base, and one end of the pawl is caught in
In the card slot, the elastic component is installed between the pawl base and the pawl, and the elastic component enables the pawl have
The trend moved towards the card slot, the draw ring are installed on the other end of the pawl.
10. retaining mechanism according to claim 1, which is characterized in that the retaining mechanism further includes baffle ring, the baffle ring
Outer ring be connected in the protecgulum, the inner ring of the baffle ring is connected in the resilient sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810919350.6A CN108662048B (en) | 2018-08-13 | 2018-08-13 | Locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810919350.6A CN108662048B (en) | 2018-08-13 | 2018-08-13 | Locking mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN108662048A true CN108662048A (en) | 2018-10-16 |
| CN108662048B CN108662048B (en) | 2023-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810919350.6A Active CN108662048B (en) | 2018-08-13 | 2018-08-13 | Locking mechanism |
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| CN (1) | CN108662048B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110116720A (en) * | 2019-05-30 | 2019-08-13 | 眉山中车制动科技股份有限公司 | Vehicle braking parking device |
Citations (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB386468A (en) * | 1931-02-28 | 1933-01-19 | Peter Franz Graf Bopp Von Ober | Improvements in or relating to hydraulic brake mechanism for vehicles |
| US3774974A (en) * | 1971-06-22 | 1973-11-27 | Porsche Kg | Safety installation for two-circuit brake systems, especially of motor vehicles |
| US3900085A (en) * | 1973-03-20 | 1975-08-19 | Girling Ltd | Improvement relating to brake adjusters |
| EP0025559A1 (en) * | 1979-09-12 | 1981-03-25 | Knorr-Bremse Ag | Ventilating device for a spring brake actuator, more especially a combined service and spring brake actuator |
| US4646882A (en) * | 1985-06-21 | 1987-03-03 | Holloway And Ludington | Brake slack adjuster |
| EP0361582A1 (en) * | 1988-09-15 | 1990-04-04 | Tebel Pneumatiek B.V. | A magnetic rail brake device |
| EP0457030A1 (en) * | 1990-05-14 | 1991-11-21 | Knorr-Bremse Ag | Spring brake cylinder for compressed air operated vehicle brakes |
| JPH0517241U (en) * | 1991-08-13 | 1993-03-05 | 埼玉機器株式会社 | Brake cylinder with automatic clearance adjuster |
| US6298968B1 (en) * | 1998-04-10 | 2001-10-09 | Valeo | Hydraulic transmitter with incorporated reservoir and hydraulic control comprising such a transmitter |
| DE102006059840A1 (en) * | 2006-12-15 | 2008-06-19 | Ipgate Ag | Adaptive Leerwegreduzierung |
| JP2008164159A (en) * | 2006-12-04 | 2008-07-17 | Nabtesco Corp | Brake cylinder |
| CN101619748A (en) * | 2009-07-31 | 2010-01-06 | 南车长江车辆有限公司 | Braking cylinder of braking device of railway wagon |
| US20100078271A1 (en) * | 2007-03-27 | 2010-04-01 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Compact Combined Cylinder Comprising a Manual Release Device |
| DE102011119998A1 (en) * | 2011-12-02 | 2013-06-06 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Spring brake cylinder with emergency release device |
| CN103465928A (en) * | 2013-09-23 | 2013-12-25 | 南车长江车辆有限公司 | Parking brake for railway wagon |
| 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 |
| CN103775431A (en) * | 2014-03-03 | 2014-05-07 | 沈阳工业大学 | Hydraulic cylinder capable of being locked at any position by using elastic sleeve |
| US20150090064A1 (en) * | 2013-10-02 | 2015-04-02 | Wabtec Holding Corp. | Manual brake release mechanism for rail vehicles |
| CN104742933A (en) * | 2015-04-24 | 2015-07-01 | 四川制动科技股份有限公司 | Spring brake |
| CN105156519A (en) * | 2015-09-02 | 2015-12-16 | 江苏师范大学 | Electromagnetic control winch brake apparatus and method |
| CN105882679A (en) * | 2014-12-31 | 2016-08-24 | 法维莱运输亚眠公司 | Railway braking system for railway vehicle, and braking method of railway vehicle with same |
| CN106015396A (en) * | 2016-07-06 | 2016-10-12 | 中车戚墅堰机车车辆工艺研究所有限公司 | Traveling and parking integrated braking device for automobile |
| CN106523550A (en) * | 2017-01-04 | 2017-03-22 | 中车戚墅堰机车车辆工艺研究所有限公司 | Vehicle gap adjustable conical brake device |
| CN107795617A (en) * | 2016-08-29 | 2018-03-13 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of checking cylinder clearance adjustment mechanism, guiding resistance mode transfer block and checking cylinder |
| CN208719201U (en) * | 2018-08-13 | 2019-04-09 | 眉山中车制动科技股份有限公司 | A kind of retaining mechanism |
| CN113483038A (en) * | 2021-09-07 | 2021-10-08 | 中车戚墅堰机车车辆工艺研究所有限公司 | Brake with self-compensation and braking method thereof |
-
2018
- 2018-08-13 CN CN201810919350.6A patent/CN108662048B/en active Active
Patent Citations (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB386468A (en) * | 1931-02-28 | 1933-01-19 | Peter Franz Graf Bopp Von Ober | Improvements in or relating to hydraulic brake mechanism for vehicles |
| US3774974A (en) * | 1971-06-22 | 1973-11-27 | Porsche Kg | Safety installation for two-circuit brake systems, especially of motor vehicles |
| US3900085A (en) * | 1973-03-20 | 1975-08-19 | Girling Ltd | Improvement relating to brake adjusters |
| EP0025559A1 (en) * | 1979-09-12 | 1981-03-25 | Knorr-Bremse Ag | Ventilating device for a spring brake actuator, more especially a combined service and spring brake actuator |
| US4646882A (en) * | 1985-06-21 | 1987-03-03 | Holloway And Ludington | Brake slack adjuster |
| EP0361582A1 (en) * | 1988-09-15 | 1990-04-04 | Tebel Pneumatiek B.V. | A magnetic rail brake device |
| EP0457030A1 (en) * | 1990-05-14 | 1991-11-21 | Knorr-Bremse Ag | Spring brake cylinder for compressed air operated vehicle brakes |
| JPH0517241U (en) * | 1991-08-13 | 1993-03-05 | 埼玉機器株式会社 | Brake cylinder with automatic clearance adjuster |
| US6298968B1 (en) * | 1998-04-10 | 2001-10-09 | Valeo | Hydraulic transmitter with incorporated reservoir and hydraulic control comprising such a transmitter |
| JP2008164159A (en) * | 2006-12-04 | 2008-07-17 | Nabtesco Corp | Brake cylinder |
| DE102006059840A1 (en) * | 2006-12-15 | 2008-06-19 | Ipgate Ag | Adaptive Leerwegreduzierung |
| US20100078271A1 (en) * | 2007-03-27 | 2010-04-01 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Compact Combined Cylinder Comprising a Manual Release Device |
| CN101619748A (en) * | 2009-07-31 | 2010-01-06 | 南车长江车辆有限公司 | Braking cylinder of braking device of railway wagon |
| DE102011119998A1 (en) * | 2011-12-02 | 2013-06-06 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Spring brake cylinder with emergency release device |
| 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 |
| CN103465928A (en) * | 2013-09-23 | 2013-12-25 | 南车长江车辆有限公司 | Parking brake for railway wagon |
| US20150090064A1 (en) * | 2013-10-02 | 2015-04-02 | Wabtec Holding Corp. | Manual brake release mechanism for rail vehicles |
| CN103775431A (en) * | 2014-03-03 | 2014-05-07 | 沈阳工业大学 | Hydraulic cylinder capable of being locked at any position by using elastic sleeve |
| CN105882679A (en) * | 2014-12-31 | 2016-08-24 | 法维莱运输亚眠公司 | Railway braking system for railway vehicle, and braking method of railway vehicle with same |
| CN104742933A (en) * | 2015-04-24 | 2015-07-01 | 四川制动科技股份有限公司 | Spring brake |
| CN105156519A (en) * | 2015-09-02 | 2015-12-16 | 江苏师范大学 | Electromagnetic control winch brake apparatus and method |
| CN106015396A (en) * | 2016-07-06 | 2016-10-12 | 中车戚墅堰机车车辆工艺研究所有限公司 | Traveling and parking integrated braking device for automobile |
| CN107795617A (en) * | 2016-08-29 | 2018-03-13 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of checking cylinder clearance adjustment mechanism, guiding resistance mode transfer block and checking cylinder |
| CN106523550A (en) * | 2017-01-04 | 2017-03-22 | 中车戚墅堰机车车辆工艺研究所有限公司 | Vehicle gap adjustable conical brake device |
| CN208719201U (en) * | 2018-08-13 | 2019-04-09 | 眉山中车制动科技股份有限公司 | A kind of retaining mechanism |
| CN113483038A (en) * | 2021-09-07 | 2021-10-08 | 中车戚墅堰机车车辆工艺研究所有限公司 | Brake with self-compensation and braking method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 刘磊;王龙泉;孙博;郑俊琦;: "踏面制动单元手动缓解装置的失效分析及改进", 机电信息, no. 15 * |
| 高锋;: "DT型制动单元研制", 铁道机车车辆工人, no. 06 * |
| 黄勇明;胡宇锋;艾正武;江国固;: "200km/h速度等级电力机车轮盘制动装置研制", 电力机车与城轨车辆, no. 02 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110116720A (en) * | 2019-05-30 | 2019-08-13 | 眉山中车制动科技股份有限公司 | Vehicle braking parking device |
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| CN108662048B (en) | 2023-07-04 |
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