CN109296680A - Checking cylinder - Google Patents
Checking cylinder Download PDFInfo
- Publication number
- CN109296680A CN109296680A CN201811470243.6A CN201811470243A CN109296680A CN 109296680 A CN109296680 A CN 109296680A CN 201811470243 A CN201811470243 A CN 201811470243A CN 109296680 A CN109296680 A CN 109296680A
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- China
- Prior art keywords
- parking brake
- spring
- brake piston
- screw
- checking cylinder
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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
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
- F16D65/186—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes with full-face force-applying member, e.g. annular
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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 invention discloses a kind of checking cylinders, are related to foundation brake mechanism technology field, and checking cylinder includes: casing mechanism；Brake screw in casing mechanism is set；Parking brake piston mechanism, it includes the first parking brake piston and the second parking brake piston, the first spring is provided between the side and casing mechanism of first parking brake piston, the first cavity is formed between the other side and casing mechanism of first parking brake piston, it is provided with second spring between the side and shell of second parking brake piston, is formed with the second cavity between the other side and casing mechanism of the second parking brake piston；With the adjustment screw of parking brake piston mechanism phase screw-driven；Transmission mechanism, transmission mechanism by the power being applied in adjustment screw for being controlled and being transferred to brake screw.What the application can effectively increase checking cylinder under the lesser basis in bogie space parks power, parks requirement with meet heavy axle load car.
Description
Technical field
The present invention relates to railway locomotive, car, lorry and city railway vehicle foundation brake mechanism technology fields, especially
It is related to a kind of checking cylinder.
Background technique
Currently, brake clamp unit used for rail vehicle is that single layer parks cylinder structure or with voussoir enlarged structure both at home and abroad
Parking Brake Cylinders, in the Parking Brake Cylinders of above structure: in single belt parking brake cylinder structure, it is small by a circle for parking power
To application braking function is parked, the output for parking power is that spring force directly pushes away for the release of spring force, is limited, is parked by parking space
Power output is smaller.It is that the spring force parked in cylinder will be parked into power by wedge structure with Parking Brake Cylinders in voussoir enlarged structure
Amplification parks power output after then amplifying, although parking the larger product shape of power output with voussoir enlarged structure
Structure size is also larger, higher to bogie of car space requirement.
Summary of the invention
In order to overcome the drawbacks described above of the prior art, the technical problem to be solved is that provide one kind for the embodiment of the present invention
Checking cylinder, checking cylinder can be effectively increased under the lesser basis in bogie space parks power, to meet heavy axle load car
Park requirement.
The specific technical solution of the embodiment of the present invention is:
A kind of checking cylinder, the checking cylinder include:
Casing mechanism；The brake screw extended in the axial direction in the casing mechanism is arranged in part；
Parking brake piston mechanism in the casing mechanism is set, and the parking brake piston mechanism stops including first
Brake piston and the second parking brake piston are put, is arranged between the side and the casing mechanism of the first parking brake piston
There is the first spring, is formed with the first cavity between the other side and the casing mechanism of the first parking brake piston, it is described
Be provided with second spring between the side and the shell of second parking brake piston, the second parking brake piston it is another
It is formed with the second cavity between side and the casing mechanism, is offered on the casing mechanism and first cavity, described
The air flue of two cavitys connection, first spring and the second spring extend in the axial direction；
With the adjustment screw of the parking brake piston mechanism phase screw-driven；
Transmission mechanism, the transmission mechanism are used for first spring, the second spring, first cavity and institute
The power that the second cavity is applied in the adjustment screw is stated to be controlled and be transferred on the brake screw.
Preferably, first shell, the second shell, third shell set gradually；It is folded in the second shell and described
Support tube between third shell is provided with the second spring between the support tube and the second parking brake piston,
First spring is provided between the second shell and the first parking brake piston；The first parking brake piston
First cavity is formed between the first shell, is formed between the second parking brake piston and the second shell
Second cavity.
Preferably, the first parking brake piston has the extension extended along axis, and second parking brake is living
Plug is fixedly connected on the extension, offers screw thread on the extension so that it is passed with the adjustment screw phase screw thread
It is dynamic.
Preferably, the checking cylinder further include: the braking being arranged in the casing mechanism hooks shellfish, and the braking hooks shellfish
Third cavity is formed between side and the casing mechanism, the braking hooks edge between the other side and the casing mechanism of shellfish
Axis direction is provided with third spring, and when pressurising in the third cavity, the braking, which hooks shellfish, can make the brake screw
Stretch out the casing mechanism.
Preferably, there is ratchet, the checking cylinder further include: manual rapid recovery on one end side wall of the adjustment screw
Device, the manual rapid recovery device include that can resist the ratchet of the adjustment screw with adjustment screw described in monodirectional locking
Retaining mechanism contact.
Preferably, there is the first notch, the transmission mechanism includes: to hook shellfish with the braking to offset on the support tube
Drive sleeve has the second notch in the drive sleeve；Screw-driven is connected to the guiding nut on the brake screw；Setting exists
Locating piece toothholder in first notch and the second notch, the locating piece toothholder can offset with the guiding nut, described
The 4th spring is provided between locating piece toothholder and the guiding nut in the axial direction.
Preferably, the locating piece toothholder can be slided in first notch and second notch.
Preferably, the transmission mechanism further include: screw-driven is connected to the adjusting nut on the brake screw；It can be with
The adjustment toothholder that the adjustment screw offsets is provided with the 5th between the adjustment toothholder and the adjusting nut in the axial direction
Spring；The driving member to offset with the adjusting nut is provided in the axial direction between the driving member and the drive sleeve
Six springs.
Preferably, the adjustment toothholder can offset with the adjustment screw, and the driving member can be with the guiding nut phase
It supports.
Preferably, the guiding nut has lug boss, and the driving member can resist the left side of the lug boss, the tune
Whole toothholder can resist the right side of the lug boss.
Technical solution of the present invention have it is following significant the utility model has the advantages that
Second parking brake piston is fixed on the first parking brake piston by the checking cylinder in the application, while designing two
A parking brake piston is on same straight line, and is respectively charged by the first parking brake piston and the second parking brake piston
One spring and second spring, the spring force value of the first spring and second spring is superimposed when braking, and total spring force is passed
Pass transmission mechanism, park atmospheric pressure value it is constant in the case where, which is single layer Parking Brake Cylinders power output
2 times.
Referring to following description and accompanying drawings, only certain exemplary embodiments of this invention is disclosed in detail, specifies original of the invention
Reason can be in a manner of adopted.It should be understood that embodiments of the present invention are not so limited in range.In appended power
In the range of the spirit and terms that benefit requires, embodiments of the present invention include many changes, modifications and are equal.For a kind of reality
The feature that the mode of applying is described and/or shown can be made in one or more other embodiments in a manner of same or similar
With, be combined with the feature in other embodiment, or substitution other embodiment in feature.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed by the invention in any way
It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, it is used to help the understanding of the present invention, and
It is not the specific shape and proportional sizes for limiting each component of the present invention.Those skilled in the art under the teachings of the present invention, can
Implement the present invention to select various possible shapes and proportional sizes as the case may be.
Fig. 1 is the structural schematic diagram of checking cylinder in the embodiment of the present invention；
Fig. 2 is the schematic diagram of part-structure of the checking cylinder under first position in the embodiment of the present invention；
Fig. 3 is the schematic diagram of part-structure of the checking cylinder under the second position in the embodiment of the present invention；
Fig. 4 is the schematic diagram of part-structure of the checking cylinder under the third place in the embodiment of the present invention；
Fig. 5 is the schematic diagram of part-structure of the checking cylinder under the 4th position in the embodiment of the present invention；
Fig. 6 is the schematic diagram of part-structure of the checking cylinder under the 5th position in the embodiment of the present invention；
Fig. 7 is the schematic diagram of part-structure of the checking cylinder under the 6th position in the embodiment of the present invention；
The appended drawing reference of the figures above:
1, casing mechanism；11, first shell；12, second shell；13, third shell；14, support tube；141, it first lacks
Mouthful；21, the first parking brake piston；22, the second parking brake piston；23, the first spring；24, second spring；25, the first chamber
Body；26, the second cavity；3, adjustment screw；31, ratchet；4, brake screw；51, braking hooks shellfish；52, third spring；53, third
Cavity；6, retaining mechanism contact；71, drive sleeve；711, the second notch；72, guiding nut；73, locating piece toothholder；74, the 4th
Spring；75, adjusting nut；76, toothholder is adjusted；77, the 5th spring；78, driving member；79, the 6th spring；8, brake lining；9, it brakes
Disk.
Specific embodiment
With reference to the drawings and the description of the specific embodiments of the present invention, details of the invention can clearly be understood.But
It is the specific embodiment of invention described herein, purpose for explaining only the invention, and cannot understand in any way
At being limitation of the present invention.Under the teachings of the present invention, technical staff is contemplated that based on any possible change of the invention
Shape, these are regarded as belonging to the scope of the present invention.It should be noted that when element is referred to as " being set to " another yuan
Part, it can directly on the other element or there may also be elements placed in the middle.When an element is considered as " connection "
Another element, it can be directly to another element or may be simultaneously present centering elements.Term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, are also possible to inside two elements
Connection, can be directly connected, can also indirectly connected through an intermediary, for the ordinary skill in the art,
The concrete meaning of above-mentioned term can be understood as the case may be.Term as used herein " vertical ", " horizontal ",
"upper", "lower", "left", "right" and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more
Any and all combinations of relevant listed item.
Power is parked in order to effectively increase checking cylinder under the lesser basis in bogie space, to meet high axle load vehicle
Park requirement, propose a kind of checking cylinder in this application, Fig. 1 is the structural representation of checking cylinder in the embodiment of the present invention
Figure, as shown in Figure 1, checking cylinder may include: casing mechanism 1；Extending in casing mechanism 1 in the axial direction is arranged in part
Brake screw 4；Parking brake piston mechanism in casing mechanism 1 is set, and parking brake piston mechanism includes the first system of parking
Piston 21 and the second parking brake piston 22 are provided between the side and casing mechanism 1 of first parking brake piston 21
One spring 23 is formed with the first cavity 25, the second system of parking between the other side and casing mechanism 1 of first parking brake piston 21
Second spring 24, the other side of the second parking brake piston 22 and casing mechanism are provided between the side and shell of piston 22
It is formed with the second cavity 26 between 1, the air flue being connected to the first cavity 25, the second cavity 26 is offered on casing mechanism 1,
First spring 23 and second spring 24 extend in the axial direction；With the adjustment screw 3 of parking brake piston mechanism phase screw-driven；
Transmission mechanism, transmission mechanism are used to the first spring 23, second spring 24, the first cavity 25 and the second cavity 26 being applied to adjustment
Power on screw rod 3 is controlled and is transferred on brake screw 4.
As shown in Figure 1, casing mechanism 1 at least may include: the first shell 11 set gradually, second shell 12, third
Shell 13；The support tube 14 being folded between second shell 12 and third shell 13.First shell 11, second shell 12, third
It can be bolted and be fixed together between shell 13.Is provided between support tube 14 and the second parking brake piston 22
Two springs 24, support tube 14 is for resisting second spring 24, so that second spring 24 has stress point.Second shell 12 with
The first spring 23 is provided between first parking brake piston 21, second shell 12 has the extended surface extended to axis direction,
So that second shell 12 can resist second spring 24.
As shown in Figure 1, the first cavity 25 is formed between the first parking brake piston 21 and first shell 11, the second system of parking
The second cavity 26 is formed between piston 22 and second shell 12.First cavity 25 and the second cavity 26 pass through 1 wall of casing mechanism
Air flue on face is connected to outside, same in the first cavity 25 and the second cavity 26 when inflating to parking brake piston mechanism
When inflate, compress the first parking brake piston 21 respectively and the second parking brake piston 22 moved synchronously and moved right, the first bullet
Spring 23 and second spring 24 are compressed under the action of the first parking brake piston 21 and the second parking brake piston 22.
Wherein, in a kind of feasible embodiment, the first parking brake piston 21 has the extension extended along axis,
Second parking brake piston 22 is fixedly connected on extension.Make the first parking brake piston 21 and second through the above way
Parking brake piston 22 is connected together, and the two can mutually drive and move each other.
In checking cylinder parking brake, on the spring-force driven dual to the first parking brake piston 21 of the first spring 23, second
On the spring-force driven dual of the spring force of spring 24 to the second parking brake piston 22, due to the first parking brake piston 21 and second
Parking brake piston 22 is fixed on integrated, the first spring 23 and second spring 24 release spring power simultaneously, spring force superposition
After be transmitted on transmission mechanism, so that power (spring force) output will be parked to generating braking action on brake screw 4.Brake screw
4 end is then provided with brake lining 8, and then is braked by brake lining 8 to brake disc 9.
Second parking brake piston 22 is fixed on the first parking brake piston 21 by the checking cylinder in the application, is set simultaneously
It counts two parking brake pistons to be on same straight line, divide by the first parking brake piston 21 and the second parking brake piston 22
It is not packed into the first spring 23 and second spring 24, the spring force value of the first spring 23 and second spring 24 is superimposed upon one when braking
Rise, total spring force is passed into transmission mechanism, park atmospheric pressure value it is constant in the case where, which is single layer
2 times of Parking Brake Cylinders power output.
As shown in Figure 1, offering screw thread on extension so that itself and 3 phase screw-driven of adjustment screw, in this way, adjustment screw
Relative motion can be generated between 3 and parking brake piston mechanism.
In a preferred embodiment, there is ratchet 31, checking cylinder on one end side wall of adjustment screw 3 further include:
Manual rapid recovery device, manual rapid recovery device include that can resist the ratchet 31 of adjustment screw 3 to adjust with monodirectional locking
The retaining mechanism contact 6 of screw rod 3.When retaining mechanism contact 6 is connected with pull ring, at the same retaining mechanism contact 6 and casing mechanism 1 it
Between be provided with elastic component.Retaining mechanism contact 6 is enabled to resist the ratchet 31 of adjustment screw 3 under the action of the elastic member, when
When by pull ring by retaining mechanism 6 pull-up of contact, retaining mechanism contact 6 is separated with 31 phase of ratchet of adjustment screw 3.
As shown in Figure 1, checking cylinder can also include: that the braking being arranged in casing mechanism 1 hooks shellfish 51, braking hooks shellfish 51
Third cavity 53 is formed between side and casing mechanism 1, third chamber is by the air flue on 1 wall surface of casing mechanism and outside
Portion's connection is provided with third spring 52 between the other side and casing mechanism 1 of braking hook shellfish 51, when third cavity in the axial direction
In 53 when pressurising, braking, which hooks shellfish 51, can make brake screw 4 stretch out casing mechanism 1.
In order to make braking hook shellfish 51 and the generation interaction relation of brake screw 4, as shown in Figure 1, having on support tube 14
First notch 141, transmission mechanism include: to hook the drive sleeve 71 that shellfish 51 offsets with braking, have the second notch in drive sleeve 71
711；Screw-driven is connected to the guiding nut 72 on brake screw 4；It is arranged in the first notch 141 and the second notch 711
Locating piece toothholder 73.Locating piece toothholder 73 can offset with guiding nut 72, along axis between locating piece toothholder 73 and guiding nut 72
Line direction is provided with the 4th spring 74.Locating piece toothholder 73 is enabled to have to left end is mobile by the 4th spring 74
Gesture.Wherein, locating piece toothholder 73 can be slided in the first notch 141 and the second notch 711.In addition, transmission mechanism may be used also
To include: adjusting nut 75 that screw-driven is connected on brake screw 4；The adjustment toothholder 76 that can be offseted with adjustment screw 3 is adjusted
It is provided with the 5th spring 77 in the axial direction between whole toothholder 76 and adjusting nut 75；The driving member to offset with adjusting nut 75
78, the 6th spring 79 is provided between driving member 78 and drive sleeve 71 in the axial direction.Wherein, 78 energy of driving member and guiding nut
72 offset.Guiding nut 72 has lug boss, and driving member 78 can resist the left side of lug boss, and adjustment toothholder 76 can resist lug boss
Right side.
The operational process of checking cylinder in the embodiment of the present application can be such that
When checking cylinder is in release position, Fig. 2 is part knot of the checking cylinder under first position in the embodiment of the present invention
The schematic diagram of structure, as shown in Fig. 2, air pressure P is discharged by the third chamber of checking cylinder, in the anti-of third spring 52 when alleviating
Under effect, braking hook shellfish 51, which moves right, is restored to alleviating position, at this point, locating piece toothholder 73 is contacted with drive sleeve 71.Pass through tune
Whole nut 75, adjustment toothholder 76, driving member 78 and guiding nut 72 etc. make brake screw 4 that brake lining 8 be driven to leave brake disc 9,
To make checking cylinder be in initial alleviating position.
When checking cylinder braking, Fig. 3 is the principle of part-structure of the checking cylinder under the second position in the embodiment of the present invention
Figure overcomes the active force of third spring 52 as shown in figure 3, air pressure P enters the third chamber of checking cylinder, and braking is pushed to hook
Shellfish 51 and drive sleeve 71 are moved to the left, and locating piece toothholder 73 is made to be moved to the left distance A, this distance A is between brake lining 8 and brake disc 9
Gap, brake lining 8 has just been contacted with brake disc 9 at this time, no active force.Under air pressure effect, braking hooks shellfish 51 and continues to be moved to the left,
Active force is generated at this time, under the active force of third chamber, adjusting nut 75, adjustment toothholder 76, driving member 78 and guiding nut
Flexible deformation E is produced between 72, under that force, the 6th spring 79 is compressed, until being able to rotate guiding nut 72 not.
Fig. 4 is the schematic diagram of part-structure of the checking cylinder under the third place in the embodiment of the present invention, as shown in figure 4, system
When dynamic, the abrasion of brake lining 8 cause gap to increase, and guiding nut 72 rotates, and adjustment brake lining 8 wears away distance.In braking process, due to
Brake lining 8 wears away f distance, and brake disc 9 is unclamped, and rotates guiding nut 72, until 72 tooth of guiding nut connects with locating piece toothholder 73
It touches and engages, reset guiding nut 72, at this point, relatively moving f distance, this distance between guiding nut 72 and brake screw 4
It is just the abrasion loss of brake lining 8.
Fig. 5 is the schematic diagram of part-structure of the checking cylinder under the 4th position in the embodiment of the present invention, as shown in figure 5, working as
When checking cylinder is alleviated again after brake lining 8 is worn away, air pressure is discharged by the third chamber of checking cylinder, and braking hooks shellfish 51 in third bullet
It moves right under the action of spring 52, the active force that brake disc 9, brake screw 4 generate gradually eliminates, and flexible deformation E also disappears therewith
It removes.When continuing to alleviate, guiding nut 72 and locating piece toothholder 73 move A distance simultaneously, and contact with drive sleeve 71.Due to,
Braking hooks shellfish 51, drive sleeve 71 moves right, and adjusting nut 75, adjustment toothholder 76 is made to disengage, and brake adjusting nut 75
Rotated on screw rod 4, until adjusting nut 75 is made to contact and engage with adjustment toothholder 76, at this point, make brake screw 4 extended to the left with
The identical distance of 8 abrasion loss f of brake lining.This time braking and the process of alleviation, compensate for brake lining 8 caused by brake lining 8 is worn away and system automatically
The increase in 9 gap of Moving plate is allowed to keep the normal clearance of brake lining 8 Yu brake disc 9.
There are three types of positions for parking brake piston mechanism tool in this application, i.e., (brake unit is in be alleviated or make alleviating position
Dynamic position), retarder location and manual rapid recovery position.Parking brake piston mechanism is mainly used for rolling stock stationary parking.
When parking brake piston mechanism is in alleviating position, rolling stock can be operated normally, and can also implement air system
It is dynamic.As shown in figure 5, vehicle operates normally, when not implementing braking action, brake unit is in relieved state.As shown in figure 4, machine
Vehicle vehicle operates normally, and when implementing braking action, brake unit is in on-position.
When parking brake piston mechanism is in retarder location, Fig. 6 is checking cylinder in the embodiment of the present invention under the 5th position
The schematic diagram of part-structure the first cavity 25 and the second cavity 26 is discharged as shown in fig. 6, when rolling stock stationary parking
In total wind pressure, under the action of the 4th spring 74, braking hook shellfish 51P, the first parking brake piston 21, the second parking brake
Piston 22 and adjustment screw 3 are moved to the left, and adjustment screw 3 is made to generate power output.The power output is acted on to adjustment toothholder 76, braking
Screw rod 4, brake lining 8 and brake disc 9 etc. realize rolling stock stationary parking.
Fig. 7 is the schematic diagram of part-structure of the checking cylinder under the 6th position in the embodiment of the present invention, as shown in fig. 7, working as
When parking brake piston mechanism is in manual rapid recovery position, when parking cylinder and being in on-position and need hand relieving, pull-up is needed
Retaining mechanism contact 6 in manual rapid recovery device, so that retaining mechanism contact 6 is separated with 31 phase of ratchet of adjustment screw 3,
Reach the thorough alleviation of checking cylinder braking action.When pulling manual rapid recovery device, retaining mechanism contact 6 and adjustment screw
3 ratchet 31 disengages, and braking hooks shellfish 51, the first parking brake piston 21 and the second parking brake piston 22 in 23 and of the first spring
It is moved to the left under the action of second spring 24, adjustment screw 3 rotates, and pushes braking to hook shellfish 51 and move right rapidly, makes to brake
Unit reaches alleviating position, completes manual rapid recovery function by the above process.
Since the first cavity 25 and the second cavity 26 are to park the first spring 23 and second spring 24 with air compression, make
Cylinder alleviation is parked, in vehicle travel process, parking brake piston mechanism is always to fill wind relieved state, when compressed air is discharged
After first cavity 25 and the second cavity 26, the first spring 23 and second spring 24 discharge spring force, and spring force is transferred to adjustment spiral shell
Bar 3, adjustment toothholder 76, drive sleeve 71, adjusting nut 75, driving member 78 to brake screw 4, generate parking brake effect.
As shown in Figure 1, the area of the first parking brake piston 21 or the second parking brake piston 22 are as follows: S=(R2-r2) π,
If it is no more than P that parking brake piston mechanism, which relieves stress design value, total wind is relieved stress as F=S × P, so total wind is slow
Decompression force F parks spring force value summation F' not less than design, therefore F >=F'.If when vehicle axle weight and larger track grade, institute
When the parking brake piston mechanism parking brake power needed is not able to satisfy parking brake requirement, need to increase spring power output.But
If individually increase the parameters such as the stiffness coefficient of spring, spring silk raising spring force value F', if meeting F >=F' requirement, F value
Accordingly become larger, park that cylinder area S is constant, and P value needs to increase, thus has exceeded parking brake piston mechanism and relieve stress limit
System, will be unsatisfactory for vehicle parking cylinder and relieves stress design requirement.If relieving stress the constant situation of P value in vehicle parking cylinder
Under, therefore parking brake piston area S is doubled, at this time under the premise of spring force value is constant, number of springs can be doubled to pacify
Dress, parking brake piston mechanism power output also may be implemented to double to export, and can satisfy vehicle parking braking by the above method
It is required that.
All articles and reference disclosed, including patent application and publication, for various purposes by quoting knot
Together in this.Describing combined term " substantially by ... constitute " should include identified element, ingredient, component or step and reality
Other elements, ingredient, component or the step of the basic novel feature of the combination are not influenced in matter.Using term "comprising" or
" comprising " describes the combination of element here, ingredient, component or step it is also contemplated that substantially by these elements, ingredient, component
Or the embodiment that step is constituted.Here by using term " can with ", it is intended to illustrate that " can with " includes described any
Attribute is all optional.Multiple element, ingredient, component or step can be mentioned by single integrated component, ingredient, component or step
For.Alternatively, single integrated component, ingredient, component or step can be divided into multiple element, ingredient, component or the step of separation
Suddenly.For describe the open "a" or "an" of element, ingredient, component or step do not say in order to exclude other elements, at
Point, component or step.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.Above-described embodiment is only
Illustrate technical concepts and features of the invention, its object is to those skilled in the art can understand the contents of the present invention
And implement accordingly, it is not intended to limit the scope of the present invention.Equivalence changes made by all Spirit Essences according to the present invention
Or modification, it should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of checking cylinder, which is characterized in that the checking cylinder includes:
Casing mechanism；The brake screw extended in the axial direction in the casing mechanism is arranged in part；
Parking brake piston mechanism in the casing mechanism is set, and the parking brake piston mechanism includes the first system of parking
Piston and the second parking brake piston are provided between the side and the casing mechanism of the first parking brake piston
One spring, is formed with the first cavity between the other side and the casing mechanism of the first parking brake piston, and described second
Be provided with second spring between the side of parking brake piston and the shell, the other side of the second parking brake piston with
It is formed with the second cavity between the casing mechanism, is offered on the casing mechanism and first cavity, second chamber
The air flue of body connection, first spring and the second spring extend in the axial direction；
With the adjustment screw of the parking brake piston mechanism phase screw-driven；
Transmission mechanism, the transmission mechanism are used for first spring, the second spring, first cavity and described the
The power that two cavitys are applied in the adjustment screw is controlled and is transferred on the brake screw.
2. checking cylinder according to claim 1, which is characterized in that the casing mechanism includes at least: set gradually
One shell, second shell, third shell；The support tube being folded between the second shell and the third shell, the branch
The second spring, the second shell and first system of parking are provided between support cylinder and the second parking brake piston
First spring is provided between piston；Described is formed between the first parking brake piston and the first shell
One cavity forms second cavity between the second parking brake piston and the second shell.
3. checking cylinder according to claim 2, which is characterized in that the first parking brake piston has to be extended along axis
Extension, the second parking brake piston is fixedly connected on the extension, offered on the extension screw thread with
Make itself and the adjustment screw phase screw-driven.
4. checking cylinder according to claim 1, which is characterized in that the checking cylinder further include: be arranged in the shell machine
Braking in structure hooks shellfish, is formed with third cavity between the side and the casing mechanism of the braking hook shellfish, the braking hooks
Third spring is provided between the other side of shellfish and the casing mechanism in the axial direction, when pressurising in the third cavity,
The braking, which hooks shellfish, can make the brake screw stretch out the casing mechanism.
5. checking cylinder according to claim 1, which is characterized in that there is ratchet on one end side wall of the adjustment screw,
The checking cylinder further include: manual rapid recovery device, the manual rapid recovery device include that can resist the adjustment spiral shell
The ratchet of bar is with the retaining mechanism contact of adjustment screw described in monodirectional locking.
6. checking cylinder according to claim 2, which is characterized in that have the first notch, the transmission on the support tube
Mechanism includes: to hook the drive sleeve that shellfish offsets with the braking, has the second notch in the drive sleeve；Screw-driven is connected to institute
State the guiding nut on brake screw；Locating piece toothholder in first notch and the second notch, the locating piece are set
Toothholder can offset with the guiding nut, be provided with the 4th in the axial direction between the locating piece toothholder and the guiding nut
Spring.
7. checking cylinder according to claim 6, which is characterized in that the locating piece toothholder can in first notch and
Second notch is slided.
8. checking cylinder according to claim 6, which is characterized in that the transmission mechanism further include: screw-driven is connected to
Adjusting nut on the brake screw；The adjustment toothholder that can be offseted with the adjustment screw, the adjustment toothholder and the tune
The 5th spring is provided between whole nut in the axial direction；The driving member to offset with the adjusting nut, the driving member and institute
It states and is provided with the 6th spring between drive sleeve in the axial direction.
9. checking cylinder according to claim 8, which is characterized in that the adjustment toothholder can offset with the adjustment screw,
The driving member can offset with the guiding nut.
10. checking cylinder according to claim 9, which is characterized in that the guiding nut has lug boss, the driving member
The left side of the lug boss can be resisted, the adjustment toothholder can resist the right side of the lug boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811470243.6A CN109296680A (en) | 2018-11-28 | 2018-11-28 | Checking cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811470243.6A CN109296680A (en) | 2018-11-28 | 2018-11-28 | Checking cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109296680A true CN109296680A (en) | 2019-02-01 |
Family
ID=65142417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811470243.6A Pending CN109296680A (en) | 2018-11-28 | 2018-11-28 | Checking cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109296680A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112721991A (en) * | 2020-12-29 | 2021-04-30 | 青岛思锐科技有限公司 | Parking brake cylinder and brake caliper unit |
| WO2022142541A1 (en) * | 2021-01-04 | 2022-07-07 | 中车青岛四方车辆研究所有限公司 | Parking brake cylinder and brake caliper unit |
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| CN107461432A (en) * | 2017-09-15 | 2017-12-12 | 中车青岛四方车辆研究所有限公司 | Parking brake module and checking cylinder, brake clamp unit for rail vehicle |
| CN206785896U (en) * | 2016-12-15 | 2017-12-22 | 常州中车铁马科技实业有限公司 | A kind of checking cylinder with power enlarging function |
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| US6152269A (en) * | 1997-10-22 | 2000-11-28 | Carraro S.P.A. | Integrated unit for the parking and service braking of rotating parts |
| 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 |
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| CN112721991A (en) * | 2020-12-29 | 2021-04-30 | 青岛思锐科技有限公司 | Parking brake cylinder and brake caliper unit |
| CN112721991B (en) * | 2020-12-29 | 2022-05-17 | 中车制动系统有限公司 | Parking brake cylinder and brake caliper unit |
| WO2022142541A1 (en) * | 2021-01-04 | 2022-07-07 | 中车青岛四方车辆研究所有限公司 | Parking brake cylinder and brake caliper unit |
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Effective date of registration: 20190424 Address after: No. 10, Fuxing Road, Haidian District, Beijing Applicant after: CHINA RAILWAY Corp. Applicant after: CHINA ACADEMY OF RAILWAY SCIENCES Corp.,Ltd. Applicant after: BEIJING ZONGHENG ELECTRO-MECHANICAL TECHNOLOGY Co.,Ltd. Applicant after: LOCOMOTIVE & CAR RESEARCH INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCES Corp.,Ltd. Address before: No. 2, Da Liu Shu Road, Haidian District, Beijing Applicant before: CHINA ACADEMY OF RAILWAY SCIENCES Corp.,Ltd. Applicant before: BEIJING ZONGHENG ELECTRO-MECHANICAL TECHNOLOGY Co.,Ltd. Applicant before: LOCOMOTIVE & CAR RESEARCH INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCES Corp.,Ltd. |
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