CN107327523A - Pneumatic brake cylinder, air brake and adjustment gap recognition methods - Google Patents
Pneumatic brake cylinder, air brake and adjustment gap recognition methods Download PDFInfo
- Publication number
- CN107327523A CN107327523A CN201710757970.XA CN201710757970A CN107327523A CN 107327523 A CN107327523 A CN 107327523A CN 201710757970 A CN201710757970 A CN 201710757970A CN 107327523 A CN107327523 A CN 107327523A
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- adjustment
- brake
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- gap
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Classifications
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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
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
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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
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention relates to a kind of pneumatic brake cylinder, air brake and adjustment gap recognition methods, including reset unit and coupled brake unit, it is characterised in that：The clearance adjusting unit for being used for adjusting brake clearance is provided between the reset unit and the brake unit, the clearance adjusting unit includes the first adjusting module, second adjusting module and the spacing module of adjustment, the spacing module of adjustment is arranged between first adjusting module and second adjusting module, the spacing module of adjustment includes limit spring and limit base, the limit spring is fixedly connected to ensure to be controlled the size of brake clearance in certain limit with the limit base and first adjusting module, realize the function that the size that gap is adjusted is identified during being adjusted in gap, prevent from additionally adjusting the locking phenomenon caused, improve travel safety.
Description
Technical field
The invention belongs to vehicle brake technology field, more particularly to a kind of pneumatic brake cylinder, air brake and adjustment
Gap recognition methods.
Background technology
Checking cylinder is the important component of rail locomotive vehicle, and existing checking cylinder is generally pneumatic brake cylinder, is generally used for
The higher railway locomotive of speed, city railway vehicle etc. use the rail locomotive vehicle of disc braking.Pneumatic brake cylinder is locomotive
Important execution unit in vehicle air brake device, by the way that air pressure is converted into thrust, then promotes the groups such as clamp lever
Part makes brake pad produce rubbing action with brake disc, so as to be braked to whole vehicle.
Pneumatic brake cylinder is in braking procedure, because the abrasion of brake lining and brake disc make the distance between brake disc and brake lining
Become big, in order to not influence braking effect to need to be adjusted braking distance, adjusted by the alleviation for adjusting brake clearance pair
Reorganize and bring up to full strength and repay.But existing checking cylinder does not possess gap adjustment identification function, after braking action is produced, due to the portion outside checking cylinder
The elastic deformation of the non-brake cylinder part such as part clamp lever, link, can cause checking cylinder leading screw outside normal stretch out
" small to stretch out ", can all cause " extra adjustment " during the elastic deformation braked every time, in the multiple such process of experience
Afterwards, set alleviation gap can diminish, or even cause gap to be zero, produce " locking phenomenon ", traffic safety is impacted；
Existing checking cylinder piston seal performance has much room for improvement simultaneously, and driving cylinder internal can have certain impurity for a long time, so that shadow
Pilot causes checking cylinder braking effect.
The content of the invention
Do not possess gap adjustment identification function for checking cylinder in the prior art and checking cylinder piston seal performance is weak asks
Topic, the present invention devises a kind of pneumatic brake cylinder, air brake and adjustment gap recognition methods, realizes in gap adjustment
During the function that is identified of size that is adjusted to gap, prevent from additionally adjust the locking phenomenon caused, improve to drive a vehicle and pacify
Quan Xing；Piston guide circle is set also inside checking cylinder and lubrication ring is oriented to, improved while checking cylinder spatter property is strengthened
Overall operation efficiency.
Concrete scheme of the present invention is：
A kind of pneumatic brake cylinder, including reset unit and coupled brake unit, the reset unit and the system
The clearance adjusting unit for being used for adjusting brake clearance is provided between moving cell, the clearance adjusting unit includes the first adjustment mould
Block, the second adjusting module and adjust spacing module, the spacing module of adjustment be arranged on first adjusting module with it is described
Between second adjusting module, the spacing module of adjustment includes limit spring and limit base, the limit spring and the limit
Position seat and first adjusting module are fixedly connected to ensure to be controlled the size of brake clearance in certain limit.
It is preferred that, the spacing module of adjustment also includes limit base and spacing ring, and the reset unit includes piston sleeve
And located at its internal leading screw, the limit base end face is contacted with the piston sleeve, other end and the spacing ring
Connection supports so as to the spacing ring, and the spacing ring inner surface stretches out to form key teeth portion, the spacing ring
It is connected in the leading screw to fix the limit base by the key teeth portion.
It is preferred that, second adjusting module include the second adjusting nut, second adjustment spring, the second adjusting nut seat,
Second adjustment block and guide pad；Set intermeshing between second adjusting nut and second adjusting nut seat
First cone tooth clutch pair is to coordinate the spacing module of adjustment to carry out gap identification, and the second adjustment spring-compressed is arranged on institute
State between the second adjusting nut seat and the second adjustment block to coordinate adjustment；The guide pad by retaining element with it is described
The seat connection of second adjusting nut, the guide groove that the piston sleeve surface is provided with and the guide pad coordinates, the guide pad can
Slide to adjust the size of brake clearance along guide groove.
It is preferred that, first adjusting module also includes the first adjusting nut, the first adjusting nut seat, the first adjustment spring
And first adjustment block；Intermeshing second cone is set between first adjusting nut and first adjusting nut seat
Tooth clutch pair is to carry out gap adjustment, and the first adjustment spring-compressed is arranged on the first adjustment block and adjusted with described first
Between whole nut, swivel base of being relieved a garrison before being provided between the first adjustment block and the piston sleeve；Relieved a garrison before described on swivel base
Provided with fork pin with limit the first adjusting nut seat rotation, it is described before relieve a garrison swivel base be threadedly coupled with the piston sleeve with consolidate
Fixed first adjusting module.
It is preferred that, the brake unit includes intermediate sleeve, is set between the piston sleeve and the intermediate sleeve
Have gap limit ring, be threadedly coupled between the gap limit ring and the intermediate sleeve, the gap limit ring with institute
State between guide pad provided with alleviating gap.
It is preferred that, the brake unit includes the promotion piston for being arranged on the brake cylinder casing of outside and coordinating with it, institute
State and be provided with piston guide circle to be oriented to the piston and to the braking between promotion piston and the brake cylinder casing
Inboard wall of cylinder block is cleared up.
It is preferred that, it is provided between the intermediate sleeve and the piston sleeve and lubricates ring for the guiding of lubrication.
A kind of air brake, including pneumatic brake cylinder.
One kind adjustment gap recognition methods, using pneumatic brake cylinder, comprises the following steps：1st, during travelling, checking cylinder
Braked, the gap of braking is not adjusted；2nd, checking cylinder braking carries out release of brake after finishing；3rd, due to brake lining and braking
The abrasion of disk make brake clearance elongated, and the first adjusting module, the second adjusting module, which cooperate, adjusts the gap of braking；4th, adjust
Spacing module is identified and made a response to the gap of adjustment；5th, after identification module is adjusted, checking cylinder is in new gap
Lower carry out release of brake.
It is preferred that, wherein step 4 is specifically included：When brake force is less than the distortional stress of limit spring, adjustment limit is not triggered
Position module, gap adjustment is normally carried out, and brake force is delivered to limit spring front stall, preceding adjusting nut and leading screw by limit spring
It is output to brake lining；When brake force is more than the distortional stress of limit spring, limit spring is compressed, and limit base compresses spacing ring, knows
Adjusting nut is rotated after Quan not can not rotating and limiting, the second cone tooth clutch between rear adjusting nut and the second adjusting nut seat
Pair separation, rear adjusting nut will not be moved with respect to leading screw, to avoid occurring locking.
The beneficial effects of the present invention are：
1st, a kind of pneumatic brake cylinder of the invention, air brake and adjustment gap recognition methods, by the first adjustment
Adjustment spacing module is set between module and the second adjusting module, the size adjusted during being adjusted in gap to gap is realized
The function being identified, prevents from additionally adjusting the locking phenomenon caused, improves travel safety.
2nd, the present invention sets piston guide circle also inside checking cylinder, makes promotion piston and the brake cylinder casing confronting coaxial heart,
With the effect for cleaning braking casing wall while sealing ring is improved with brake cylinder casing fiting effect, the sealing of checking cylinder is improved
The cleaning inside sealed cylinder block is improved while energy.
3rd, set between intermediate sleeve and piston sleeve and be oriented to lubrication ring, improve checking cylinder piston operational efficiency,
Maintenance cost is reduced simultaneously.
Brief description of the drawings
Fig. 1 is a kind of stereogram of pneumatic brake cylinder of the invention；
Fig. 2 is the structural representation of pneumatic brake cylinder of the present invention；
Fig. 3 is the clearance adjusting unit structural representation of pneumatic brake cylinder of the present invention；
Fig. 4 is the first adjusting module structural representation of pneumatic brake cylinder of the present invention；
Fig. 5 is the spacing modular structure schematic diagram of adjustment of pneumatic brake cylinder of the present invention；
Fig. 6 is the second adjusting module structural representation of pneumatic brake cylinder of the present invention；
Fig. 7 is part A enlarged drawing in Fig. 1 of pneumatic brake cylinder of the present invention；
Fig. 8 is part B enlarged drawing in Fig. 1 of pneumatic brake cylinder of the present invention；
Fig. 9 is the spacing ring structural representation of pneumatic brake cylinder of the present invention；
Figure 10 is a kind of FB(flow block) of adjustment gap recognition methods of the invention.
Above in each figure：
1st, reset unit；11st, piston sleeve；12nd, leading screw；13rd, manual adjustment nut；14th, saddle type groups of springs；15th, precursor；
2nd, brake unit；21st, intermediate sleeve；22nd, brake cylinder casing；23rd, piston is promoted；24th, piston guide circle；25th, it is oriented to lubrication ring；
26th, sealing ring；27th, brake chamber；28th, release spring；29th, air inlet；3rd, clearance adjusting unit；31st, the first adjusting module；
311st, the first adjusting nut；312nd, the first adjusting nut seat；313rd, the first adjustment spring；314th, the first adjustment block；315th,
Plug tap tooth clutch pair；316th, preceding swivel base of relieving a garrison；317th, fork pin；32nd, the second adjusting module；321st, the second adjusting nut；322、
Second adjustment spring；323rd, the second adjusting nut seat；324th, the second adjustment block；325th, guide pad；326th, the first cone tooth clutch
It is secondary；33rd, spacing module is adjusted；331st, limit base；332nd, spacing ring；3321st, key teeth portion；333rd, limit spring；4th, gap limit
Ring.
Embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is only used for explaining related invention, rather than the restriction to the invention.It also should be noted that, in order to just
The part related to invention is illustrate only in description, accompanying drawing.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of pneumatic brake cylinder of the present invention, is adjusted by being set between the first adjusting module 31 and the second adjusting module 32
Spacing module 33, realizes the function that the size that gap is adjusted is identified during being adjusted in gap, prevents extra adjustment
The locking phenomenon caused, improves travel safety.
It is described in detail below by specific embodiment：
Fig. 1, Fig. 2 are refer to, the recognizable checking cylinder in gap includes reset unit 1 and coupled brake unit 2, silk
The mechanism of thick stick 12 is arranged on the front portion of whole checking cylinder, and brake unit 2 is arranged on the rear portion of whole checking cylinder, and brake unit 2 is exported
Brake power, the transmission brake power of reset unit 1, coordinates brake lining to be braked with brake disc to train.
Fig. 2, Fig. 3 are refer to, the gap adjustment for being used to adjust brake clearance is provided between reset unit 1 and brake unit 2
Unit 3, clearance adjusting unit 3 includes the first adjusting module 31, the second adjusting module 32 and adjusts spacing module 33, adjustment limit
Position module 33 is arranged between the first adjusting module 31 and the second adjusting module 32 to recognize the size of gap adjustment.
Meanwhile, reset unit 1 and brake unit 2 are monolithically fabricated whole checking cylinder, the first adjusting module 31, second adjustment mould
Block 32 and the spacing module 33 of adjustment are circumferentially positioned at the outside of leading screw 12, the first adjusting module 31 and the phase of the second adjusting module 32
Mutually coordinate and brake clearance is modulated, adjust spacing 33 pairs of adjustment gaps of module and be identified and make a response.
Fig. 5, Fig. 9 are refer to, adjusting spacing module 33 includes limit base 331 and spacing ring 332, and reset unit 1 includes living
Plug sleeve 11 and the leading screw 12 set inside it, the right side of limit base 331 are contacted with piston sleeve 11, below left side with
Spacing ring 332 is contacted, and the inner side of spacing ring 332 stretches out the key teeth portion 3321 to be formed, the clamping of key teeth portion 3321 provided with inner surface
In the outer surface of leading screw 12 to fix limit base 331, the distance in the left side of spacing ring 332 is identification distance.
Further, adjusting spacing module 33 also includes limit spring 333, and the compression of limit spring 333 is arranged at limit base
331 and first between adjusting module 31, so as to keep certain identification gap between the adjusting module 31 of spacing ring 332 and first.It is logical
Crossing the resilient support effect of spring makes to maintain a certain distance between the first adjusting module 31 and spacing ring 332.By first
Adjustment spacing module 33 is set between the adjusting module 32 of adjusting module 31 and second, realized during being adjusted in gap to gap
The function that the size of adjustment is identified, prevents from additionally adjusting the locking phenomenon caused, improves travel safety.
Fig. 6 is refer to, the second adjusting module 32 includes the second adjusting nut 321, second adjustment spring 322, second and adjusted
Nut seat 323, second adjusts block 324 and guide pad 325, between the second adjusting nut 321 and the second adjusting nut seat 323
Intermeshing first cone tooth clutch pair 326 is set to coordinate the spacing module 33 of adjustment to carry out gap identification, the second adjustment spring
322 compressions are arranged between the adjustment block 324 of the second adjusting nut seat 323 and second, and guide pad 325 passes through retaining element and the
Two adjusting nuts seat 323 is connected, and the guide groove that the surface of piston sleeve 11 is provided with and guide pad 325 coordinates, guide pad 325 can be along leading
Slide to adjust the size of brake clearance to groove.Specifically, retaining element is high intensity screw.
Fig. 4 is refer to, the first adjusting module 31 also includes the first adjusting nut 311, the first adjusting nut seat 312, first
The adjustment block 314 of spring 313 and first is adjusted, sets mutual between the first adjusting nut 311 and the first adjusting nut seat 312
Second cone tooth clutch pair 315 of engagement is to carry out gap adjustment, and the first adjustment compression of spring 313 is arranged on the first adjustment block
314 and first between adjusting nut 311, swivel base 316 of being relieved a garrison before being provided between the first adjustment block 314 and piston sleeve 11, preceding
Swivel base 316 of relieving a garrison is provided with fork pin 317 to limit the rotation of the first adjusting nut seat 312, preceding swivel base 316 and the piston bush of relieving a garrison
Cylinder 11 is threadedly coupled to fix the first adjusting module 31.
Fig. 6 is refer to, brake unit 2 includes intermediate sleeve 21, is provided between piston sleeve 11 and intermediate sleeve 21
Gap limit ring 4, is threadedly coupled between gap limit ring 4 and intermediate sleeve 21, the end face and guide pad of gap limit ring 4
Certain alleviation gap is set between 325.
Fig. 8 is refer to, brake unit 2 includes the promotion piston for being arranged on the brake cylinder casing 22 of outside and coordinating with it
23, promote and be provided with piston guide circle 24 between piston 23 and brake cylinder casing 22 to be oriented to piston and to brake cylinder casing 22
Inwall is cleared up.Piston guide circle 24 is set inside checking cylinder, makes promotion piston 23 and the confronting coaxial heart of brake cylinder casing 22,
With the effect for cleaning braking casing wall while sealing ring 26 is improved with 22 fiting effect of brake cylinder casing, the close of checking cylinder is improved
The cleaning inside sealed cylinder block is improved while sealing property.
Fig. 6 is refer to, is provided between intermediate sleeve 21 and piston sleeve 11 and lubricates ring 25, tool for the guiding of lubrication
Body, it is polytetrafluoroethylene (PTFE) to be oriented to lubrication ring 25 material.Set between intermediate sleeve 21 and piston sleeve 11 and be oriented to lubrication
Ring 25, improves checking cylinder piston operational efficiency, while reducing maintenance cost.
The invention also discloses a kind of air brake, above-mentioned pneumatic brake cylinder is used.
Gap recognition methods is adjusted the invention also discloses one kind, using pneumatic brake cylinder, Figure 10 is refer to, including it is following
Step：
S1：During traveling, checking cylinder is braked, and the gap of braking is not adjusted.
Specifically, filling wind to brake chamber 27 by the air inlet 29 of brake cylinder casing 22, the air pressure of brake chamber 27 is raised, so that
Promotion piston 23 is compressed release spring 28 and to be moved to the left, piston sleeve 11 promote successively limit base 331, limit spring 333,
First adjusting nut the 312, first adjusting nut 311 of seat and leading screw 12, the second adjusting module 32 is under the drive of leading screw 12
Together it is moved to the left.In braking procedure, after reset unit 1 is by the certain outer power restriction of other structures outside checking cylinder,
Limit spring 333 may proceed to compression, until gapless between limit base 331, the adjusting nut of spacing ring 332 and first seat 312, this
When piston thrust successively by piston sleeve 11, limit base 331, spacing ring 332, the first adjusting nut seat the 312, first adjusting nut
311st, leading screw 12 passes to other structures outside checking cylinder.
S2：Checking cylinder braking carries out release of brake after finishing.
Specifically, the pressure air of brake chamber 27 is discharged by the air inlet 29 of brake cylinder casing 22, release spring 28 is answered
Position elongation, makes promotion piston 23 move right, the adjustment block 314, first of swivel base 316, first of being relieved a garrison before the drive of piston sleeve 11
Adjusting nut 311 and leading screw 12 move right and resetted, until promoting the right side of piston 23 to be contacted with brake cylinder casing 22.
S3：Because the abrasion of brake lining and brake disc make brake clearance elongated, the first adjusting module 31, the second adjusting module 32
The gap that the adjustment that cooperates is braked.
Specifically, filling wind to brake chamber 27 by the air inlet 29 of brake cylinder casing 22, the rise of the air pressure of brake chamber 27 is pushed away
The compression release spring 28 of piston 23 is moved to the left, and piston sleeve 11 promotes limit base 331, limit spring 333, first to adjust according to this
Whole nut seat 312, the first adjusting nut 311 and leading screw 12.When guide pad 325 is contacted with spacing ring, leading screw 12 still needs to move
Dynamic, the second adjusting nut 321 continues to move to left under the drive of leading screw 12, and the movement of guide pad 325 is limited ring and limited, now
Second adjustment spring 322 is compressed, the first cone tooth clutch pair between the second adjusting nut 321 and the second adjusting nut seat 323
326 disengage, and the second adjusting nut 321 rotates relative to leading screw 12, and leading screw 12 stretches out to the left with respect to the second adjusting nut 321.When multiple
After outer power restriction of the bit location 1 by other structures outside checking cylinder, limit spring 333 may proceed to compression, until limit base
331st, gapless, now the second adjusting nut 321 and the second adjusting nut between the adjusting nut of spacing ring 332 and first seat 312
The first cone tooth clutch pair 326 between seat 323 is engaged again.The thrust of piston 23 is promoted according to this by piston sleeve 11, limit base
331st, spacing ring 332, the first adjusting nut the 312, first adjusting nut 311 of seat and leading screw 12 pass to other outside checking cylinder
Structure.
S4：The gap for adjusting spacing 33 pairs of adjustment of module is identified and made a response.
Specifically, when brake force is less than the distortional stress of limit spring 333, not triggering the spacing module 33 of adjustment, gap is adjusted
Whole to be normally carried out, brake force is delivered to the front stall of limit spring 333, preceding adjusting nut and leading screw 12 by limit spring 333 and exported
To brake lining；When brake force is more than the distortional stress of limit spring 333, limit spring 333 is compressed, and limit base 331 compresses spacing
Ring 332, adjusting nut is rotated after identification circle can not be rotated and limited, between rear adjusting nut and the second adjusting nut seat 323
Second cone tooth clutch pair 315 is separated, and rear adjusting nut will not be moved with respect to leading screw 12, to avoid occurring locking.
S5：After identification module is adjusted, checking cylinder carries out release of brake under new gap.
Specifically, the compressed air of brake chamber 27 is discharged by the air inlet 29 of brake cylinder casing 22, release spring 28 is answered
Position elongation makes promotion piston 23 move right, and the adjustment block 314, first of swivel base 316, first of being relieved a garrison before the drive of piston sleeve 11 is adjusted
Whole nut 311, leading screw 12 move right and resetted, and the second adjusting module 32 also together moves right under the drive of leading screw 12,
When the first adjustment block 314 is spacing by the guide groove end face on intermediate sleeve 21, the reset of leading screw 12 is terminated, and first adjusts
Whole nut 311 still continues to move to right under the drive of piston sleeve 11；Now the first adjustment spring 313 can be compressed, and make first
The second cone tooth clutch pair 315 between the adjusting nut of adjusting nut 311 and first seat 312 is disengaged, and the first adjusting nut 311 is relative
Leading screw 12 rotates, until promote piston 23 to be contacted with the right side of brake cylinder casing 22, the first adjusting nut 311 and the first adjustment spiral shell
The second cone tooth clutch pair 315 between female seat 312 is engaged again.
In a further embodiment, gap can be adjusted by manual mode, refer to Fig. 7, rotation manual adjustment spiral shell
Mother 13, saddle type groups of springs 14 is separated from each other, the relative brake cylinder body 22 of leading screw 12 so as to be compressed between precursor 15 and leading screw 12
Rotation is produced, so that the relative brake cylinder body 22 of reset unit 1 stretches out or retracted, realization manually adjusts stretching for brake clearance length
Long or shortening.
Designed more than, the spacing module 33 of adjustment be set between the first adjusting module 31 and the second adjusting module 32,
The function that the size that gap is adjusted is identified during being adjusted in gap is realized, prevents that additionally adjusting the locking caused shows
As improving travel safety；Piston guide circle 24 is set inside checking cylinder, makes promotion piston 23 relative with brake cylinder casing 22
It is concentric, with the effect for cleaning braking casing wall while improving sealing ring 26 with 22 fiting effect of brake cylinder casing, improve system
The cleaning inside sealed cylinder block is improved while the sealing property of dynamic cylinder；Set between intermediate sleeve 21 and piston sleeve 11
Guiding lubrication ring 25 is put, checking cylinder piston operational efficiency is improved, while reducing maintenance cost.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology of the particular combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, is carried out by above-mentioned technical characteristic or its equivalent feature
Other technical schemes formed by any combination.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical characteristic of energy carries out technical scheme formed by replacement mutually.
Claims (10)
1. a kind of pneumatic brake cylinder, including reset unit and coupled brake unit, it is characterised in that：The reset unit
The clearance adjusting unit for being used for adjusting brake clearance is provided between the brake unit, the clearance adjusting unit includes first
Adjusting module, the second adjusting module and the spacing module of adjustment, the spacing module of adjustment are arranged on first adjusting module
Between second adjusting module, the spacing module of the adjustment includes limit spring and limit base, the limit spring with
The limit base and first adjusting module are fixedly connected to ensure to be controlled the size of brake clearance in certain limit.
2. pneumatic brake cylinder as claimed in claim 1, it is characterised in that：The spacing module of adjustment also includes limit base and spacing
Ring, the reset unit includes piston sleeve and located at its internal leading screw, the limit base end face and the piston bush
Cylinder contact, other end is connected with the spacing ring so that the spacing ring is supported, the spacing ring inner surface to
Outer extension forms key teeth portion, and the spacing ring is connected in the leading screw to fix the limit base by the key teeth portion.
3. pneumatic brake cylinder as claimed in claim 2, it is characterised in that：Second adjusting module include the second adjusting nut,
Second adjustment spring, the second adjusting nut seat, the second adjustment block and guide pad；
Second adjusting nut and second adjusting nut seat between set it is intermeshing first cone tooth clutch pair with
Close the spacing module of the adjustment and carry out gap identification, the second adjustment spring-compressed be arranged on the second adjusting nut seat with
To coordinate adjustment between the second adjustment block；
The guide pad is connected by retaining element with second adjusting nut seat, and the piston sleeve surface is provided with and described
The guide groove that guide pad coordinates, the guide pad can slide to adjust the size of brake clearance along guide groove.
4. pneumatic brake cylinder as claimed in claim 3, it is characterised in that：First adjusting module also includes the first adjustment spiral shell
Female, the first adjusting nut seat, the first adjustment spring and the first adjustment block；
Intermeshing second cone tooth clutch pair is set to enter between first adjusting nut and first adjusting nut seat
Row gap adjustment, the first adjustment spring-compressed is arranged between the first adjustment block and first adjusting nut,
Relieved a garrison swivel base before being provided between the first adjustment block and the piston sleeve；
Swivel base of being relieved a garrison before described provided with fork pin with limit the first adjusting nut seat rotation, it is described before relieve a garrison swivel base with it is described
Piston sleeve threaded connection is with fixed first adjusting module.
5. pneumatic brake cylinder as claimed in claim 4, it is characterised in that：The brake unit includes intermediate sleeve, the work
Gap limit ring, spiral shell between the gap limit ring and the intermediate sleeve are provided between plug sleeve and the intermediate sleeve
Line is connected, and gap is alleviated in being provided between the guide pad for the gap limit ring.
6. the pneumatic brake cylinder as described in claim 1-5 any one, it is characterised in that：The brake unit includes setting outside
The brake cylinder casing in portion and the promotion piston coordinated with it, are provided with piston between the promotion piston and the brake cylinder casing and lead
To circle to be oriented to the piston and the brake cylinder casing inwall is cleared up.
7. pneumatic brake cylinder as claimed in claim 6, it is characterised in that：Set between the intermediate sleeve and the piston sleeve
It is equipped with and lubricates ring for the guiding of lubrication.
8. a kind of air brake, it is characterised in that：Including the pneumatic brake cylinder described in claim 1-7 any one.
9. one kind adjustment gap recognition methods, usage right requires pneumatic brake cylinder described in 1-8 any one, it is characterised in that：
Comprise the following steps：
During S1, traveling, checking cylinder is braked, and the gap of braking is not adjusted；
S2, checking cylinder braking carry out release of brake after finishing；
S3, the abrasion due to brake lining and brake disc make brake clearance elongated, and the first adjusting module, the second adjusting module cooperate
Adjust the gap of braking；
S4, the spacing module of adjustment are identified and made a response to the gap of adjustment；
S5, after identification module is adjusted, checking cylinder carries out release of brake under new gap.
10. adjustment gap recognition methods as claimed in claim 9, it is characterised in that：Wherein step S4 is specifically included：
When brake force is less than the distortional stress of limit spring, the spacing module of adjustment is not triggered, gap adjustment is normally carried out, brake force
Limit spring front stall, preceding adjusting nut and leading screw are delivered to by limit spring and are output to brake lining；
When brake force is more than the distortional stress of limit spring, limit spring is compressed, and limit base compresses spacing ring, and identification circle can not
Adjusting nut is rotated after rotating and limiting, and the second cone tooth clutch pair between rear adjusting nut and the second adjusting nut seat is separated,
Adjusting nut will not be moved with respect to leading screw afterwards, to avoid occurring locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757970.XA CN107327523B (en) | 2017-08-29 | 2017-08-29 | Pneumatic brake cylinder, air brake and adjustment gap recognition methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757970.XA CN107327523B (en) | 2017-08-29 | 2017-08-29 | Pneumatic brake cylinder, air brake and adjustment gap recognition methods |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107327523A true CN107327523A (en) | 2017-11-07 |
| CN107327523B CN107327523B (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710757970.XA Active CN107327523B (en) | 2017-08-29 | 2017-08-29 | Pneumatic brake cylinder, air brake and adjustment gap recognition methods |
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| KR20020092014A (en) * | 2001-06-01 | 2002-12-11 | 이재영 | Brake Cylinder Unit For Railway-vehicle |
| CN201866138U (en) * | 2010-11-15 | 2011-06-15 | 中国铁道科学研究院机车车辆研究所 | Small-sized spring-mounted parking disc-shaped brake cylinder for rail-bound vehicles |
| CN202732801U (en) * | 2012-06-30 | 2013-02-13 | 南车戚墅堰机车车辆工艺研究所有限公司 | Unit brake cylinder |
| CN103511516A (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 | Unit brake cylinder |
| US20140231192A1 (en) * | 2011-07-26 | 2014-08-21 | Nabtesco Corporation | Unit brake |
| CN106523556A (en) * | 2016-12-26 | 2017-03-22 | 常州中车铁马科技实业有限公司 | Vehicle unit brake cylinder |
| CN206386424U (en) * | 2016-12-15 | 2017-08-08 | 常州中车铁马科技实业有限公司 | It is a kind of to recognize the brake clamp unit of lever deformation |
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2017
- 2017-08-29 CN CN201710757970.XA patent/CN107327523B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020092014A (en) * | 2001-06-01 | 2002-12-11 | 이재영 | Brake Cylinder Unit For Railway-vehicle |
| CN201866138U (en) * | 2010-11-15 | 2011-06-15 | 中国铁道科学研究院机车车辆研究所 | Small-sized spring-mounted parking disc-shaped brake cylinder for rail-bound vehicles |
| US20140231192A1 (en) * | 2011-07-26 | 2014-08-21 | Nabtesco Corporation | Unit brake |
| CN202732801U (en) * | 2012-06-30 | 2013-02-13 | 南车戚墅堰机车车辆工艺研究所有限公司 | Unit brake cylinder |
| CN103511516A (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 | Unit brake cylinder |
| CN206386424U (en) * | 2016-12-15 | 2017-08-08 | 常州中车铁马科技实业有限公司 | It is a kind of to recognize the brake clamp unit of lever deformation |
| CN106523556A (en) * | 2016-12-26 | 2017-03-22 | 常州中车铁马科技实业有限公司 | Vehicle unit brake cylinder |
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| CN107327523B (en) | 2019-11-05 |
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