A kind of checking cylinder clearance adjustment mechanism, guiding resistance mode transfer block and checking cylinder
Technical field
The present invention relates to a kind of clearance adjustment mechanism, especially a kind of checking cylinder clearance adjustment mechanism, guiding resistance mode transfer block
And checking cylinder, belong to vehicle brake technology field.
Background technology
According to the applicant understood, in the brake clamp cellular construction with gap adjustment function common at present, its stable shape
Alleviation gap under state generally determines that the trip depends on checking cylinder clearance adjustment mechanism by checking cylinder maximum without adjustment stroke
Correlated parts size.For a long time, maximum is without adjustment stroke after its accessory size of the structures shape of traditional braking cylinder determines
Mutually it should determine that, so that the alleviation gap under brake clamp stable state is a determination value.Alleviate gap to change, it is necessary to replace
The correlated parts changed in checking cylinder clearance adjustment mechanism.
Retrieval finds that Application No. CN201210221661.8 Chinese patent literature discloses a kind of unit brake cylinder,
Including brake cylinder casing, resetting-mechanism and clearance adjustment mechanism, the brake cylinder casing is provided with air inlet, and brake cylinder casing is built with system
Piston, the brake piston include the piston only coordinated with brake cylinder casing inwall and extended in the middle part of piston only to side
Piston tube;One end of the brake cylinder casing is fixedly connected with cylinder cap;It is provided between cylinder cap and the piston only of brake piston slow
Solve spring;The cylinder cap has central tube, and the periphery of the piston tube of brake piston and the center inside pipe wall of cylinder cap are slidably matched, and
End is stretched out outside central tube;The resetting-mechanism includes screw mandrel;The clearance adjustment mechanism includes guiding nut and forms and adjust
Nut composition is saved, the guiding nut composition includes piston lid, guiding nut, guide springs, clutch shaft bearing and tapered sleeve, institute
State adjusting nut composition and include adjusting nut, cone tooth sliding sleeve, adjust spring and second bearing, the technical scheme compare prior art
It is simple in construction (referring to 200980853.2), regulation is sensitive precisely, but technical scheme clearance adjustment mechanism disclosed in the patent
Gap can not adjust in the case where being changed without parts, therefore adaptability is not good enough.
In addition, between Application No. CN200820218260.6 Chinese patent is disclosed in a kind of common unit brake cylinder
Gap adjustment mechanism, it is possible to achieve in the case where being changed without parts to the regulation of gap adjustment amount, therefore improve checking cylinder
Or even whole brake clamp device adapts to the flexibility of different disc spacing requirements.However, the basic structure and work of its checking cylinder
Notable difference be present with principle and foregoing two patent, the tune gap gear and adjustment collar of its governor motion by Axial Loads,
And the regulation direction for adjusting collar is also axial direction, therefore easily because service load causes thread looseness, it is necessary to take other anti-
Loose measure ensures the stabilization of gap adjustment, therefore adds the complexity of structure.
The content of the invention
It is an object of the invention to:In view of the above-mentioned problems of the prior art, being improved by structure, propose that one kind passes through
Simplicity regulation can adjust checking cylinder maximum on demand without adjustment stroke value and reliable and stable checking cylinder clearance adjustment mechanism, from
And realize and the adaptability for alleviating gap width under brake clamp stable state is regulated and controled.
In order to reach object above, the basic technical scheme of checking cylinder clearance adjustment mechanism of the present invention is:Including mutually solid
Gray iron and cylinder cap pipe even, the cylinder cap tube cavity is nested with forms the secondary piston tube of axial movement, the piston therewith
The inner of pipe is axially connected with the piston in cylinder body, and release spring is housed between the cylinder cap pipe and piston;The piston
The outer end of pipe and the guiding resistance of tubulose adjust device body to be connected, and square key groove and wedge-shaped adjusting block installation are axially provided with the cylinder cap pipe
Groove;The tapered sleeve and guiding nut that end face engagement is provided with device body are adjusted in the guiding resistance, and the tapered sleeve and guiding nut are remote
One end of engagement is born against adjusts spring and guide springs in resistance;The endoporus of the guiding nut revolves equipped with inner with adjusting nut
The regulation screw axis of conjunction, equipped with end face engageable cone tooth sliding sleeve therewith outside the adjusting nut;It is described to bore the cylindrical of tooth sliding sleeve
With being connected radially outward from the square key of keyway above cylinder cap pipe, the wedge-shaped adjusting block mounting groove of the cylinder cap pipe is equipped with radial position
The abutting end of adjustable wedge-shaped adjusting block, the square key and wedge-shaped adjusting block has outer lozenges and interior lozenges respectively.
After the present invention, not only make the original function of unit brake cylinder unchanged, and due to the radial direction of wedge-shaped adjusting block
Position is adjustable, when wedge-shaped adjusting block radial displacement, its outer lozenges and interior lozenges axial direction spacing with square key abutting end with
Change, so as to realize by the square key checking cylinder maximum that maximum axial relative displacement is determined in cylinder cap pipe square key groove without adjustment
Stroke value it is adjustable.And the regulation direction of wedge-shaped adjusting block of the present invention is radially, orthogonal with the loading direction of axial direction, wedge shape is adjusted
Some guide fingers installed on monoblock mounting groove provide effective axially support, therefore effectively prevent work for wedge-shaped adjusting block
Loosened when making caused by axial load, it is ensured that brake clamp alleviates the stabilization of gap width.
The present invention's is perfect as follows:
The cylinder cap pipe is connected by screw thread with cylinder cap, and is provided with square key groove and wedge-shaped adjusting block mounting groove vertically.
Matched position on the wedge-shaped adjusting block mounting groove and wedge-shaped adjusting block of the cylinder cap pipe is provided with several guide fingers
Mounting hole and adjusting screw mounting hole, the wedge-shaped adjusting block are arranged on cylinder cap pipe by guide finger and adjusting screw.
The wedge-shaped adjusting block is with the contact surface of the wedge-shaped adjusting block mounting groove of cylinder cap pipe, being provided with wavy spring.
It is provided with keyway in the piston tube vertically, the circumferentially distributed position of the keyway and groove width and keyway above cylinder cap pipe
Match.
The piston tube is provided with release spring axially outside, described release spring one end and piston interior side contacts, another
One end contacts with cylinder cap tube end.
The adjusting nut periphery installation and adjustment spring, the regulation spring one end connect with regulation check ring end face
Touch, the other end contacts with regulation spring bearing.
The adjusting nut leading portion circumferentially has the end tooth matched with cone tooth sliding sleeve end tooth.
The guiding resistance, which adjusts to have to hinder guiding on the ladder external cylindrical surface of device body one end, adjusts device module to be installed on piston tube
On screw thread, the screw thread that there is on the other end inner cylinder face installation guiding resistance to adjust device end cap.
The guiding nut is arranged on guiding resistance and adjusted in device end cap, and its endoporus has the trapezoidal spiral shell being engaged with wire rod thread
Line.
Between device end cap is adjusted in the guiding nut and guiding resistance, guiding nut bearing and guiding bullet are installed respectively vertically
Spring;The end face of the guiding nut bearing is spacing by guiding nut cascaded surface, described guide springs one end and guiding nut bearing
Contact, the other end hinder with guiding adjusts device end cap inner side end to contact.
There is the circumferential end tooth matched with end tooth on tapered sleeve described guiding nut one end, is distributed with the tapered sleeve circumference by it
The feather key being nested in the corresponding keyway of guiding resistance tune device end cap endoporus.
The guiding resistance adjusts installation resistance at the side cascaded surface of the inner hole wall of device body to adjust pad, the resistance trimming pad endoporus
Wall circumferentially has the key that keyway corresponding on adjusting nut coordinates.
The resistance adjusts spring to be arranged between the cascaded surface of another cascaded surface and tapered sleeve that device body inner hole wall is adjusted in guiding resistance.
The resistance adjusts the elastic force of spring to be more than the elastic force of guide springs.
According to another aspect of the present invention, there is provided device housing, guiding spiral shell are adjusted in one kind guiding resistance mode transfer block, including guiding resistance
Mother, guide springs, tapered sleeve, guiding nut, guide springs and tapered sleeve are arranged at guiding resistance and adjusted in device housing, and a) tapered sleeve can not turn
Guiding resistance is arranged on dynamicly to adjust in device housing, and is hindered to adjust in device housing in guiding and be axially movable;B) guiding nut and tapered sleeve it
Between be provided with the fit structure that can be connected with each other or separate, when guiding nut separates with tapered sleeve, guiding nut relative can guide
Device housing into rotation is adjusted in resistance;C) guiding resistance mode transfer block also includes:Pad is adjusted in resistance and spring is adjusted in resistance, and resistance adjusts pad and resistance to adjust the equal position of spring
In the remote guiding nut side of tapered sleeve;D) resistance adjust pad be installed in rotation on guiding resistance adjust device housing in, tapered sleeve have with
The first position that one end of pad abuts against or is bonded is adjusted in resistance, and the second place of pad is adjusted away from resistance, and the another of pad is adjusted in resistance
One end is circumferential constraint connection end;E) resistance adjusts one end of spring to be abutted with tapered sleeve, and resistance adjusts the other end of spring and guiding resistance to adjust device
The inner hole wall of housing abuts against.
Further, the fit structure between guiding nut and tapered sleeve engages for end tooth, and one end of guiding nut is provided with end
End tooth on tooth, with tapered sleeve matches.
Further, there is the circumferential end tooth matched with end tooth on tapered sleeve guiding nut one end, in the presence of guide springs,
The end tooth of guiding nut and tapered sleeve is intermeshed.
Further, when tapered sleeve is located at first position, tapered sleeve compression resistance adjusts spring and adjusts pad to abut or be bonded with resistance,
For limiting and hindering the rotation for the connector for adjusting pad circumferentially to constrain connection;When tapered sleeve is located at the second place, tapered sleeve is adjusted with resistance
There is interval between pad.
Further, resistance is adjusted pad to be installed in rotation on guiding resistance and adjusted on the first cascaded surface of device shell inner hole wall;Resistance
Adjust spring to be set on the outer peripheral face of one end of the remote guiding nut of tapered sleeve, and hinder the cascaded surface of the one end for adjusting spring and tapered sleeve
Abut, resistance adjusts the other end of spring to adjust the second cascaded surface of device shell inner hole wall to abut with guiding resistance;Guiding resistance is adjusted in device housing
Second cascaded surface of hole wall hinders relative to guiding adjusts the first cascaded surface of device shell inner hole wall closer to guiding nut.
Further, guiding resistance adjust device shell inner hole wall the first cascaded surface positioned at guiding resistance adjust device shell inner hole wall compared with
Small inner radius, guiding resistance adjust the second cascaded surface of device shell inner hole wall to adjust the larger interior diameter of device shell inner hole wall positioned at guiding resistance
Place.
Further, resistance adjusts the elastic force of spring to be more than the elastic force of guide springs.
Further, guiding resistance adjusts device housing to include guiding resistance to adjust device body and guiding to hinder and adjust device end cap, and pad, resistance are adjusted in resistance
Adjust spring, guiding nut, guide springs and tapered sleeve to be arranged at guiding resistance to adjust in device body, guide resistance to adjust device end cap to be arranged on and draw
Lead one end that resistance adjusts device body to accommodate guiding nut;The endoporus of guiding nut is provided with screw thread, for adjusting screwing for screw axis;
Guide springs are sleeved on the one end of guiding nut away from tapered sleeve, and one end of guide springs abuts with guiding nut, guide springs
The other end with guiding hinder adjust device end cap abut;When guiding nut separates with tapered sleeve, guiding nut can relative guiding resistance tune device
Body rotates;When tapered sleeve is located at first position, tapered sleeve compression resistance adjusts spring and adjusts pad to abut or be bonded with resistance, for limiting
The pad connector that circumferentially constraint connects is adjusted to be rotated relative to regulation screw axis with resistance.
Further, resistance adjusts pad inner hole wall circumferentially to have the key coordinated for keyway corresponding on connector.
Further, guiding resistance adjusts device body to include having externally threaded thin diameter section on ladder external cylindrical surface at one end, uses
In in piston tube;Guiding resistance adjusts device body also to include having female particle size on the endoporus face of cylinder of the other end
Section, internal thread, which is used to hinder with guiding, adjusts device end cap to be threadedly coupled.
Further, guiding resistance adjust device body inner hole wall the first cascaded surface positioned at guiding resistance adjust device body inner hole wall compared with
Small inner radius, and on thin diameter section;Guiding resistance adjusts the second cascaded surface of device body inner hole wall to be adjusted positioned at guiding resistance in device body
At the larger interior diameter of hole wall, and on wide section.
Further, guiding nut is arranged on guiding resistance and adjusted in device end cap, and the endoporus of guiding nut has with adjusting screw mandrel
The trapezoidal thread that axle is engaged.
Further, between the inner side end of device end cap is adjusted in the cascaded surface of guiding nut and guiding resistance, pacify respectively vertically
Fill guiding nut bearing and guide springs;The end face of guiding nut bearing is spacing by guiding nut cascaded surface, guide springs one end
Abut or contact with guiding nut bearing, the other end hinders with guiding and adjusts device end cap inner side end to abut or contact.
Further, feather key is distributed with tapered sleeve circumference, tapered sleeve is nested in guiding resistance by feather key and adjusted in device end cap
In the corresponding keyway of hole wall.
Further, it is any one in helical spring, disc spring and wavy spring that spring is adjusted in guide springs and resistance.
Further, guiding resistance is adjusted and stopper slot or spacing hole is in axial direction offered on device body, guiding resistance mode transfer block
Also include:Feather key, feather key are arranged on tapered sleeve through stopper slot or spacing hole, and feather key be at least partially situated at it is spacing
In groove or spacing hole.
According to another aspect of the present invention, there is provided a kind of checking cylinder clearance adjustment mechanism, including:Cylinder block;Piston
Module, it is movably disposed in cylinder block, and axial movement pair is formed with cylinder block;Adjust axle module, including regulation
Screw axis, regulation screw mandrel shaft portion is located in cylinder block and one end of regulation screw axis is located in piston modules;Adjust in gap
Mould preparation block, it is arranged on regulation screw axis, and between regulation screw axis and cylinder block, gap adjusting module is used to adjust
Adjust the relative position of screw axis and cylinder block;Checking cylinder clearance adjustment mechanism also includes:Guiding resistance as provided above is adjusted
Module, is arranged on one end of the remote cylinder block of regulation screw axis, and device housing and work are adjusted in the guiding resistance that guiding is hindered in mode transfer block
Fill in module connection.
Further, cylinder block includes mutually connected gray iron and cylinder cap pipe, and piston modules include piston and work
Plug pipe, piston tube are arranged on cylinder cap tube cavity and move axially pair with the formation of cylinder cap pipe, and the inner of piston tube is with being located in cylinder body
Piston axially be connected, gap adjusting module is arranged in piston tube, and with regulation screw axis be threadedly coupled, gap adjusting module
With limiting section, stopper slot is axially provided with cylinder cap pipe, limiting section is arranged in stopper slot through piston tube, gap adjusting module
For adjusting the relative position between regulation screw axis and piston tube.
Further, gap adjusting module includes:Adjusting nut, screwed with regulation screw axis, the resistance of guiding resistance mode transfer block
Pad is adjusted to be connected with adjusting nut, tapered sleeve is adjusted pad to coordinate and rotated to limit adjusting nut relative to regulation screw axis with resistance;Cone
Tooth sliding sleeve, it is arranged on adjusting nut periphery, the end tooth of cone tooth sliding sleeve engages with the end tooth of adjusting nut, outside cone tooth sliding sleeve
For circle with being connected radially outward from the square key of keyway above cylinder cap pipe, square key forms limiting section.
Further, release spring is housed between cylinder cap pipe and piston.
Further, release spring is axially mounted on the outside of piston tube, release spring one end and piston interior side contacts, another
End contacts with cylinder cap tube end.
Further, adjusting nut periphery is provided with regulation spring, regulation spring one end and regulation check ring end face
Contact, the other end contact with regulation spring bearing.
Further, adjusting nut leading portion circumferentially has the end tooth matched with cone tooth sliding sleeve end tooth.
According to another aspect of the present invention, there is provided a kind of checking cylinder, including checking cylinder clearance adjustment mechanism, between checking cylinder
Gap adjustment mechanism is the checking cylinder clearance adjustment mechanism of above-mentioned offer.
Brief description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the governor motion broken section mplifying structure schematic diagram of Fig. 1 embodiments.
Fig. 3 is the structural representation before the regulation of Fig. 1 embodiments wedge-shaped adjusting block.
Fig. 4 is the structural representation after the regulation of Fig. 1 embodiments wedge-shaped adjusting block.
Fig. 5 is the structural representation that Fig. 1 embodiments coordinate clamp in relieved state.
Fig. 6 is the structural representation that Fig. 1 embodiments coordinate clamp in on-position.
Fig. 7 is that Fig. 1 embodiment adjusting nut end-tooths are at a fully engaged and fully unmated state comparison schematic diagram.Top is tune
It is at a fully engaged to save nut end face tooth, bottom is that adjusting nut end-tooth is completely disengaged.
Fig. 8 is the decomposing schematic representation of each main modular of checking cylinder.
Fig. 9 is the structural representation of guiding resistance mode transfer block.
Figure 10 is the sectional view of guiding resistance mode transfer block in Fig. 9.
Figure 11 is the structural representation of gap adjusting module.
Figure 12 is the sectional view of Figure 11 intermediate gaps adjusting module.
Figure 13 is that checking cylinder clearance adjustment mechanism carries out the structural representation that work is transferred in resistance in Fig. 1.
Figure 14 is the partial enlarged drawing at A in Figure 13.
Figure 15 is the partial enlarged drawing at B in Figure 13.
Figure 16 is the another structural representation of guiding resistance mode transfer block.
The sectional view for the guiding resistance mode transfer block that Figure 17 is Figure 16.
In figure:111- cylinder bodies;112- cylinder caps;113- cylinder cap pipes;115- wedge-shaped adjusting blocks;116- guide fingers;117- waveforms
Spring;118- adjusting screws;121- pistons;122- piston tubes;123- sealing rings;131- adjusting nuts;132- bores tooth sliding sleeve;
133- adjusts spring;134- adjusts spring bearing;135- adjusts check ring;Device body is adjusted in 141- guiding resistances;142- guiding resistances
Adjust device end cap;143 guiding nuts;144- guide springs;145- tapered sleeves;Pad is adjusted in 146- resistances;Spring is adjusted in 147- resistances;148- is guided
Nut bearing;151- yokes;152- adjustment axis screw mandrels;153- reduction nuts;154- reduction nut wavy springs;155- reduction nuts
Sealing ring;197- dust covers;198- square keys;199- release springs.
Embodiment
Embodiment one
The checking cylinder clearance adjustment mechanism basic structure of the present embodiment as depicted in figs. 1 and 2, including mutually connected cylinder body
111st, cylinder cap 112 and cylinder cap pipe 113, the inner chamber of cylinder cap pipe 113 is nested with forms the secondary piston tube 122 of axial movement, piston therewith
The inner of pipe 122 is axially connected with the piston 121 in cylinder body, and release spring 199 is housed between cylinder cap pipe 113 and piston;
The outer end of piston tube 122 and the guiding resistance of tubulose adjust device body 141 to be connected, and square key groove and wedge shape are axially provided with cylinder cap pipe 113
The mounting groove of adjustment block 115.The tapered sleeve 145 and guiding nut 143 that end face engagement is provided with device body 141, tapered sleeve are adjusted in guiding resistance
145 and the one end of guiding nut 143 away from engagement bear against and adjust spring 147 and guide springs 144 in resistance.Guiding nut 143
Endoporus equipped with the inner regulation screw axis 152 screwed with adjusting nut 131, can be nibbled therewith equipped with end face outside adjusting nut 131
The cone tooth sliding sleeve 132 of conjunction.The cylindrical of tooth sliding sleeve 132 is bored to be connected with the square key 198 radially outward from the top keyway of cylinder cap pipe 113,
The wedge-shaped adjusting block mounting groove of cylinder cap pipe 113 is equipped with the adjustable wedge-shaped adjusting block 115 of radial position, and square key 198 and wedge shape adjust
The abutting end of block 115 has outer lozenges and interior lozenges respectively.
In order to make it easy to understand, the checking cylinder clearance adjustment mechanism of the present embodiment is pressed to compactness and the function master of annexation
It is divided into five functional module:Cylinder block, piston modules, gap adjusting module, guiding resistance mode transfer block, regulation axle module.This
Outside, in addition to some non-module parts:Release spring 199, square key 198, dust cover 197 etc..
Cylinder block is by cylinder body 111, cylinder cap 112, cylinder cap pipe 113, wedge-shaped adjusting block 115, guide finger 116, wavy spring
117 and adjusting screw 118 form.Cylinder body 111 and cylinder cap 112 form its agent structure, the two can by bolt and nut or jump ring,
The spacing connection of the modes such as steel wire, form the cavity fixed position and provide motion working space for piston modules.Cylinder cap pipe 113 passes through
Screw thread is connected with cylinder cap 112, and providing kinematic mount for piston modules is oriented to, and is provided with square key groove and wedge-shaped adjusting block vertically thereon
115 mounting grooves.Matched position on the wedge-shaped adjusting block mounting groove and wedge-shaped adjusting block 115 of cylinder cap pipe 113 is provided with several
Guide finger mounting hole and adjusting screw mounting hole, wedge-shaped adjusting block 115 are arranged on cylinder by guide finger 116 and adjusting screw 118
On lid pipe 113.On the contact surface of wedge-shaped adjusting block 115 and the wedge-shaped adjusting block mounting groove of cylinder cap pipe 113, it is also equipped with some
Individual wavy spring 117 can be that wedge-shaped adjusting block 115 provides resilient support and be that adjusting screw 118 provides certain locking pretension.
Piston modules are made up of piston 121, piston tube 122 and piston packing 123.Wherein, piston 121 and piston tube
122 can be fixedly connected in the axial direction by screw thread pair or jump ring limit method.Piston packing 123 is straight by interference fit
Connect and be arranged on the outer rim of piston 121, when piston modules load cylinder block with the lumen contact of cylinder body 111, play air seal work
With.Keyway is provided with along its axial direction in piston tube 122, its circumferentially distributed position and groove width match with the top keyway of cylinder cap pipe 113,
Predominantly the axial movement of square key 198 provides space;There is spiral shell on the inner headed face of the non-one end being connected with piston 121 of piston tube 122
Line, for being connected with guiding resistance mode transfer block.Piston tube 122 is provided with release spring 199, its one end and piston axially outside
121 interior side contacts, the other end and the ends contact of cylinder cap pipe 113, reset can be provided when brake cylinder exhaust is alleviated for piston modules
Axial force.
Gap adjustment module is mainly made up of adjusting nut 131, cone tooth sliding sleeve 132, regulation spring 133.Adjusting nut 131
Pass axially through cone tooth sliding sleeve 132 and overlapped with its axis.Regulation check ring 135 is installed in tune by steel wire or jump ring
Save one end periphery of nut 131.Adjust spring bearing 134 to be arranged between adjusting nut 131 and cone tooth sliding sleeve 132, for the two
Relatively rotate and support is provided, and axial limiting is carried out by the ladder hole end surface on cone tooth sliding sleeve 132.Adjust spring 133 vertically
It is installed on the periphery of adjusting nut 131, its one end and the regulation end contact of check ring 135, the other end and regulation spring bearing
134 contacts, for providing an axial reset force between adjusting nut 131 and cone tooth sliding sleeve 132.The leading portion of adjusting nut 131
It is circumferential that there is end tooth, and matched with end tooth on cone tooth sliding sleeve 132.In the presence of spring 133 is adjusted, external load is being not subject to
During situation, the end tooth intermeshing of adjusting nut 131 and cone tooth sliding sleeve 132, and limit the two axially relative motion with circumference.
There is fluting vertically on the periphery of the other end of the non-installation and adjustment spring 133 of adjusting nut 131, guiding can be hindered mode transfer block
In resistance adjust pad 146 on key nesting wherein;There is trapezoidal thread on the endoporus of adjusting nut 131, with regulation axle module
The screw thread of screw mandrel 152 is engaged.132 cylindrical circumference of cone tooth sliding sleeve is disposed with the mounting hole of square key 198, and square key 198 can be consolidated by screw
It is scheduled on cone tooth sliding sleeve 132, and it is spacing by the top keyway of end cap 112 for it to provide circumference.
Guiding resistance mode transfer block is mainly hindered by guiding adjusts device body 141, guiding resistance to adjust device end cap 142, guiding nut 143, draw
Guided missile spring 144, tapered sleeve 145, resistance adjust pad 146, resistance to adjust spring 147 and guiding nut bearing 148 to form.Device body is adjusted in guiding resistance
There is screw thread on 141 one end ladder external cylindrical surfaces, adjust device module to be installed on piston tube 122 for guiding to be hindered;In the other end
Also there is screw thread on the face of cylinder, guide resistance to adjust device end cap 142 for installing.Guiding nut 143 is arranged on guiding resistance and adjusts device end cap
In 142, there is trapezoidal thread on its endoporus, be engaged with the screw thread of screw mandrel 152 for adjusting axle module.In guiding nut 143 and guiding
Between device end cap 142 is adjusted in resistance, guiding nut bearing 148 and guide springs 144 are installed respectively vertically.Wherein, guiding nut axle
Hold 148 end face it is spacing by guiding nut cascaded surface, be guiding nut 143 and guiding resistance adjusted between device end cap 142 relative turns
It is dynamic that supporting is provided;The one end of guide springs 144 contacts with guiding nut bearing 148, and the other end adjusts the inner side of device end cap 142 with guiding resistance
End contact, for providing an axial reset force between.Guiding nut can be made by guiding nut bearing 148
Relatively rotate between 143 and guide springs 144, certainly, can also be relatively rotated by both other parts warranties, for example,
Can be substituted using pad made of lubricious material, and by pad be arranged on guiding nut 143 and guide springs 144 it
Between, one of end face of pad is abutted with the side of guiding nut 143, by the other end of pad and guide springs 144
End abutment.Wherein, the fit structure between guiding nut 143 and tapered sleeve 145 engages for end tooth, guiding nut 143
The end tooth that is provided with end tooth, with tapered sleeve 145 of one end match.Specifically, the one end of guiding nut 143 has and the upper end of tapered sleeve 145
The circumferential end tooth of tooth matching, in the presence of guide springs 144, the end tooth of guiding nut 143 and tapered sleeve 145 is intermeshed.
As shown in Figure 16 and Figure 17, it is axially moveable to ensure that tapered sleeve 145 hinders to adjust in device body 141 in guiding, without
Circumferentially rotate, can be hindered in guiding and spacing hole is set on tune device body 141, spacing hole adjusts the axle of device body 141 along guiding resistance
To setting, guiding resistance mode transfer block also includes feather key 149, and feather key 149 is fixed on tapered sleeve 145 through spacing hole, and is led
It is at least partially situated to key 149 in spacing hole, so that tapered sleeve 145 can only move in movement along spacing hole direction.In order to
The moving stability of tapered sleeve 145 is improved, can be hindered in guiding and adjust circumferentially disposed multiple spacing holes on device body 141, multiple feather keys 149
One-to-one corresponding is arranged in multiple spacing holes.
There is circumferential end tooth the one end of guiding nut 143, is matched with the end tooth on tapered sleeve 145, in the effect of guide springs 144
Under, when being not subject to external load situation, the end tooth of guiding nut 133 and tapered sleeve 145 is intermeshed, and limit the two axially with
Circumferential relative motion.Feather key is distributed with tapered sleeve 145 in the circumferential, is nested in guiding resistance and adjusts the endoporus phase of device end cap 142
Answer in keyway, for limiting circumferentially opposed rotation and unidirectional axial limiting therebetween.Resistance adjusts pad 146 to be arranged on guiding resistance
At the cascaded surface for adjusting the endoporus side of device body 141, circumferentially there is key, for key corresponding on adjusting nut 131 at its endoporus
Groove coordinates.Resistance is adjusted spring 147 to be arranged on guiding resistance and adjusted between another cascaded surface of the endoporus of device body 141 and the cascaded surface of tapered sleeve 145.
Under normal mounting and working condition, resistance adjusts the elastic force of spring 147 to be much larger than the elastic force of guide springs 144, under its effect, cone
The end face and guiding resistance for covering 145 feather keys adjust the key slot ends of device end cap 142 to be bonded, and cause the end face of the other end of tapered sleeve 145
The end face of pad 146 is adjusted to keep certain interval in the axial direction with resistance.Wherein, it can be spiral that spring 147 is adjusted in guide springs 144 and resistance
Any one in spring, disc spring and wavy spring.Spring 147 is adjusted to be arranged to disc spring or waveform bullet guide springs 144 and resistance
Spring can reduce its length, and then can reduce the overall length of guiding resistance mode transfer block.
Axle module is adjusted mainly by yoke 151, screw mandrel 152, reduction nut 153, reduction nut wavy spring 154 and reset spiral shell
Female sealing ring 155 forms.The upper and lower side of yoke 151 has the interface holes being connected with brake clamp lever, and bushing is provided with hole
113, the installation for regulation axle module and brake clamp lever provides supporting role with relatively rotating.The trapezoidal thread of screw mandrel 152
For coordinating with adjusting nut 131 and guiding nut 143, polished rod one end is stretched into and is installed on the centre bore of yoke 151.Screw mandrel 152
Polished rod cascaded surface has end tooth, is meshed with end tooth on yoke 151;Radially there is through hole polished rod end, and by resilient key and again
Position nut 153 is fixedly connected.Reduction nut wavy spring 154 is installed vertically between reduction nut 153 and yoke 151, is used for
Retention yoke 151 and the end flank engagement of screw mandrel 152.Reduction nut sealing ring is installed between the outside of reduction nut 153 and yoke 151
155, for dustproof and waterproof.
Circumferential slot is had near the end face outside of cylinder cap 112 and the inner side end of yoke 151, for installing between
Dust cover 197.
Referring to shown in Fig. 3 to Figure 12, the present embodiment is compared with checking cylinder of the tradition with gap adjustment function, square key 198
Designed using wedge shape section, its actual movable space is then by the square key groove on cylinder cap pipe 113 and common group of wedge-shaped adjusting block 115
Into.Setting height(from bottom) of the wedge-shaped adjusting block 115 on cylinder cap pipe 113 is can adjust by adjusting adjusting screw 118, that is, have adjusted wedge shape
The height of the lozenges of adjustment block 115, so as to change the movable distance in axial direction of the square key 198 in square key groove i.e. maximum without adjustment
Stroke S1.Principle is adjusted from the gap of checking cylinder, walking stroke S when the actual sky of piston is more than maximum without adjustment stroke S1 with adjusting
The end tooth engagement height N sums of nut 131 are saved, the end tooth mutual with cone tooth sliding sleeve 132 of adjusting nut 131 is kept completely separate, triggered
Slack adjusting action occurs for clearance adjustment mechanism, therefore, after multiple slack adjusting action, the alleviation gap of brake clamp
Sp brake discs should be maintained near S1+N/i with gap of the brake lining under relieved state, wherein, i is brake clamp lever ratio.It is logical
Overregulate screw 118 adjust wedge-shaped adjusting block 115 height, change between its lozenges and the lozenges of square key 198 axially away from
From changing S1, you can adjust the alleviation gap of brake clamp.
When being filled with compressed air in cylinder body 111, compressed air promotes piston modules compression 199 outside sidesway of release spring
It is dynamic.Guiding resistance mode transfer block is threadably secured with piston tube 122 to be connected, and it is moved laterally with piston modules.Braking
Before the brake lining of clamp is held tightly with brake disc, checking cylinder both ends can be considered free end, i.e., substantially not by the axial direction system from lever
Dynamic loading.Now hindered in guiding and adjust inside modules, because resistance adjusts the elastic force of spring 147 to be much larger than guide springs 144, in guide springs
Under 144 collective effect, guiding nut 143 is meshed with the end tooth of tapered sleeve 145, and guiding nut 143 can not relative adjustment axle hair
Raw rotation, relative position of the adjustment axis with guiding nut 143 in the axial direction is constant, i.e., guiding nut 143 passes through trapezoidal thread band
Dynamic adjustment axis synchronously moves out together.Because the circumference of square key 198 is spacing, in the presence of spring 133 is adjusted, adjusting nut
131 with bore tooth sliding sleeve 132 end tooth be meshed, adjusting nut 131 can not relative adjustment axle rotate, adjustment axis passes through trapezoidal
Screw thread drives gap adjustment module synchronously to move out together, and square key 198 also moves in square key groove therewith.
When the gap Sp between the brake lining of brake clamp and brake disc is larger, made before brake lining does not clamp with brake disc
It is larger that the actual sky of dynamic cylinder walks stroke S.It is maximum without adjustment stroke S1+ adjusting nuts more than square key 198 that if actual sky walks stroke S
During 131 end tooth engagement height N, in checking cylinder gas replenishment process, square key 198 is with whole gap adjustment module one at first with piston mould
Block is moved out, and when square key stroke reaches S1, its lozenges contacts with wedge-shaped adjusting block, and it is axially moved by spacing.
After this, adjusting nut 131 continues outside lateral movement, adjusting nut 131 and cone tooth sliding sleeve under the drive of adjustment axis screw mandrel 152
132 end tooth face is initially separated, and after continuing to move an end tooth engagement height N, end tooth is kept completely separate, adjusting nut 131
Circumferential movement constraint release, intermittent rotation takes place in the presence of spring 133 is adjusted, so that adjustment axis screw mandrel
152 relative adjustment nuts 131 are protruding.After brake cylinder exhaust, in the presence of release spring 199, piston to medial motion,
Gap adjustment module, guiding resistance mode transfer block and regulation axle module integrally will be transported also to medial motion, square key 198 to inner side therewith
It is dynamic.Due in gas replenishment process, the stroke of piston is more than the stroke of square key 198, therefore, in reseting procedure, when square key 198 by
To after the axial limiting of square key groove inner side end, gap adjustment module will stop moving axially, in adjusting nut 131 and adjustment axis
In the presence of the screw thread of screw mandrel 152 coordinates, adjustment axis can not also continue to move axially.And piston by drive guide resistance adjust device module after
Continuous to move inward, in the presence of guiding nut 143 and the screw thread of adjustment axis screw mandrel 152 coordinate, guiding nut 143 draws compression
Guided missile spring 144, guiding nut 143 will separate with the end tooth of tapered sleeve 145, rotary spacing of the tapered sleeve 145 to guiding nut 143
Release, in the presence of guide springs 144, intermittent rotation will occur for guiding nut 143, so that guiding nut 143 is relative
Axially opposing displacement occurs for adjustment axis screw mandrel 152, and causes guiding resistance mode transfer block to realize the complete reset to inner side.In checking cylinder
Fill before and after exhaust event, because adjustment axis relative gap adjustment module and guiding resistance mode transfer block are there occurs axially opposing displacement, i.e.,
Also opposing pistons module is protruding so that the length elongation of checking cylinder before and after action, be reacted to brake clamp brake lining end its
Bilateral spacing diminishes, and disc gap reduces, i.e., there occurs slack adjusting action.
As shown in FIG. 13 to 15, for the ease of understanding the technical scheme of the application, principle is adjusted to illustrate resistance below:
When being filled with compressed air in brake cylinder body 111, compressed air promotes the compression release spring 199 of piston 121 to start
Move laterally.Because piston stroke S is more than the maximum without the adjustment end tooth engagement height of stroke S1+ adjusting nuts 131 of square key 198
During N, under on-position (after brake lining holds brake disc tightly, and elastic deformation occurs for lever), adjusting nut 131 and cone tooth sliding sleeve
132 end tooth will be kept completely separate.Due to checking cylinder by the axial constraint counter-force effect deformed from lever (much larger than resistance
Adjust the spring force of spring 147), adjustment axis 152 drives guiding nut 143 to adjust spring to inner side crush cones set 145, tapered sleeve compression resistance
147 so that the end face of tapered sleeve 145, which compresses and is bonded resistance, adjusts pad 146.Now, the end of adjusting nut 131 and cone tooth sliding sleeve 132
Although tooth is kept completely separate, but because resistance adjusts pad 146 to be compressed by tapered sleeve 145, can not rotate, ultimately result under frictional force effect
It can not still be rotated by the nested adjusting nut 131 of key with it, that is, prevent the gap caused by lever elastic deformation excessive
Adjustment.In the process, guiding nut 143 engages with the end tooth of tapered sleeve 145, piston tube 122, gap adjusting module, guiding resistance
Mode transfer block and regulation axle module move laterally with piston 121 is synchronous.Checking cylinder length is L0+S during release.
When discharging compressed air in brake cylinder body 111, piston 121 starts in the presence of release spring 199 to inner side
Reset.In the process, adjusting nut 131 engages with boring the end tooth of tooth sliding sleeve 132, the end tooth of guiding nut 143 and tapered sleeve 145
Engagement, piston tube 122, gap adjusting module, guiding resistance mode transfer block and regulation axle module are synchronous completely multiple laterally with piston 121
Position.Checking cylinder length reverts to L0 during release.
If the setting height(from bottom) of wedge-shaped adjusting block 115 is H1, the maximum of square key 198 without adjustment stroke is S1;When wedge shape is adjusted
After the setting height(from bottom) increase Δ H of monoblock 115, the maximum of square key 198 will also increase Δ S, and Δ S=Δs H/ therewith without adjustment stroke
Tan (a), wherein a are square key 198 and the angle of the lozenges of wedge-shaped adjusting block 115 and horizontal plane.And the brake clamp after adjusting delays
Solution gap then adds Δ Sp=Δ S/i=Δs H/ (tan (a) × i) bilateral distance.
In addition, square key 118 and the lozenges of wedge-shaped adjusting block 115 should use lozenges fit system shown in the drawings, i.e.,
After the lozenges of square key 198 contacts with the lozenges of wedge-shaped adjusting block 115, force direction of the square key 198 to wedge-shaped adjusting block 115
Obliquely, now under the pulling force effect of adjusting screw 118, the accurate limit to wedge-shaped adjusting block 115 to can be achieved along lozenges
Position.
Wherein, Fig. 8 is shown by cylinder block, piston modules, gap adjusting module, guiding resistance mode transfer block and adjustment axis
The decomposing schematic representation of the checking cylinder of module composition.Fig. 9 shows the stereogram of guiding resistance mode transfer block in Fig. 1.Figure 10 is according to Fig. 9
The sectional view of the guiding resistance mode transfer block shown.Figure 11 is the stereogram of Fig. 1 intermediate gaps adjusting module.Figure 12 is to be shown according to Figure 11
Gap adjusting module sectional view.
In addition to the implementation, the present invention can also have other embodiment.It is all to use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the protection domains of application claims.