CN1669856A - Improved hand brake lever interface for single-cylinder truck-mounted railway car brake - Google Patents
Improved hand brake lever interface for single-cylinder truck-mounted railway car brake Download PDFInfo
- Publication number
- CN1669856A CN1669856A CNA2004100089295A CN200410008929A CN1669856A CN 1669856 A CN1669856 A CN 1669856A CN A2004100089295 A CNA2004100089295 A CN A2004100089295A CN 200410008929 A CN200410008929 A CN 200410008929A CN 1669856 A CN1669856 A CN 1669856A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- brake
- actuation lever
- lever
- braking system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Braking Arrangements (AREA)
Abstract
This invention relates to railway car handle brake system, which comprises the first and second brake beams, wherein, the first and second drive lever are connected through one pivot to the first and second brake beams; the first and second force transmission device is connected to the first and second drive lever. The drive connection parts are connected to the above first lever. The improvement points comprise one pushing supportive socket of the first brake beam and the above pushing supportive has one bolt element.
Description
Technical field
The present invention relates generally to be used for the hand brake of railway truck, more particularly, the present invention relates to a kind of improved hand brake lever interface of using of being suitable for the brake equipment that a single cylinder, open-top car are installed.
Background technology
As US Patent 4,613,016 and 4,793, shown in 446, according to the brake equipment of the known a kind of single cylinder of prior art, open-top car installation, it is designed to use with the strut type brake beam at present.In this respect, the braking force that applies by equipment acts on each brake beam at the beam mid point, because beam depression bar arm is delivered in load between beam compression and the tension element, has maximal resistance for bending power at the beam mid point.Believe that this single cylinder equipment can be with the relatively low maximum operating efficiency of cost realization when combining with truss type brake beam.
US Patent 5,069 has been instructed a kind of hand brake that the single cylinder open-top car is installed the rolling stock drg that is used in 312.This patent transfers cessionary of the present invention, and instruction is wherein introduced as reference here.
Wherein disclosed is a kind of hand braking system, and this hand braking system installs the single cylinder brake equipment with the open-top car that comprises a truss type brake beam and uses.A single hand braking pivot rotaring lever is arranged, and this lever is supported by a transmission connection piece that reverses in the centre of its end, and this transmission connection piece is fixed to again on the brake equipment transmission levers.The axle head of this hand brake lever can the junction of brake beam tensioning and depression bar element be installed in the load-bearing surface free running fit of the thrust bearing on the brake beam, thereby the points of engagement between fulcrum point and the load-bearing surface is changed along with the rotation of hand brake lever.In addition, an axle head of hand brake lever is provided with two isolated curved section, these two curved section cooperate with the load-bearing surface of thrust bearing in the hand brake lever rotary course continuously, changing its lever ratio, and thereby the rotation degree of restriction hand brake lever.
Summary of the invention
The invention provides a kind of improved hand brake lever interface that the single cylinder open-top car is installed the rolling stock drg that is used for, use, comprise the brake beam that first and second spaces separate with the hand braking system of rolling stock.The point of first and second transmission levers in the middle of their end connects with a cooresponding pivot in above-mentioned first and second brake beams.First and second force transmission elements are coupled to each other between the counterpart arm of above-mentioned first and second transmission levers.Above-mentioned first force transfering device comprises brake actuator, and this brake actuator can respond to the fluid pressure of its supply and operate, and increasing the length of above-mentioned first force transfering device, thereby increases the spacing distance between above-mentioned first and second brake beams.A transmission connection piece connects with above-mentioned first transmission levers, thereby can accurately move therewith in a plane of the plane of rotation that is parallel to above-mentioned first transmission levers.Improvements comprise a thrust bearing that is arranged on above-mentioned first brake beam.Above-mentioned thrust bearing has a pin element that is arranged at wherein.With an actuation lever, this actuation lever has pivot with the position of above-mentioned transmission connection piece in the middle of their end and connects, closely the end near above-mentioned actuation lever has an arch section, and this arch section can cooperate with above-mentioned pin element rotation, and is suitable for receiving hand brake force.
Goal of the invention
Therefore a main purpose of the present invention provides a kind of improved hand brake lever interface that the single cylinder open-top car is installed the rolling stock drg that is used for, this interface has pin and lever geometry, lever correctly can be positioned at vertical direction, this will help to reduce the tractive force that the mis-aligned owing to cylinder transmission levers and hand braking transmission connection piece causes.
Another object of the present invention provides a kind of improved hand brake lever interface that the single cylinder open-top car is installed the rolling stock drg that is used for, can with the brake equipment mutual action of aforementioned type, thereby can apply hand brake force and pneumatic braking force at the mid point of each brake beam, and come to transmit hand brake force to another brake beam from a brake beam without any need for additional lever.
Another object of the present invention provides a kind of improved hand brake lever interface that the single cylinder open-top car is installed the rolling stock drg that is used for, can apply required hand brake force by the aerobraking equipment component, and can on brake beam and/or equipment component, not apply any significant torsional forces.
Another purpose of the present invention provides a kind of improved hand brake lever interface that the single cylinder open-top car is installed the rolling stock drg that is used for, be configured to make hand brake lever to change, thereby limit its range of operation and thereby prevent interference with the open-top car axle than in operating process.
Another object of the present invention provides a kind of improved hand brake lever interface that the single cylinder open-top car is installed the rolling stock drg that is used for, and can be retrofitted on the existing system.
Except the top of the present invention various purposes of having described in detail and advantage, for the technical personnel in the association area, various other purpose of the present invention and advantage will understand easily becoming the more detailed description of the present invention from following, particularly when this description be when carrying out with appended claims in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 is the axonometric drawing such as grade that the single cylinder open-top car installation brake assemblies of prior art hand brake device is housed, and this brake assemblies can install hand brake lever of the present invention or attaching parts additional.
Fig. 2 is the planar view of brake assemblies among Fig. 1.
Fig. 3 is the elevation drawing of brake assemblies among Fig. 1.
Fig. 4,5 and 6 is views of the diverse location of expression prior art hand brake lever, and the double leverage of controlling the hand brake lever rotating range with expression compares the aspect.
Fig. 7,8 and 9 currently preferred embodiments of representing according to hand brake lever of the present invention.
Figure 10 is a chart, and the improvement performance substantially of current preferred hand brake lever is compared in expression with the prior art hand brake lever.
The specific embodiment
The detailed description of the preferred embodiment of the present invention.
Before the present invention is described in more details, should be noted that for clarity sake in all views of accompanying drawing, the similar elements with identical function is represented with identical Reference numeral.
With reference to Fig. 1 in the accompanying drawing, 2 and 3, a rolling stock brake equipment is shown, comprise the brake beam 1 and 2 of pair of parallel, this is installed on the open-top car (not shown) of rolling stock by the guiding supporting leg 3 in the detachable braking of each beam 4 brake beam 1 and 2.Braking 4 is installed in the end of brake beam, is carrying the brake shoe brake cheek (not shown) that cooperates with the wheel of rolling stock open-top car.Guide channel in the open-top car side frame is arranged to receive brake beam guiding supporting leg 3 with known manner, with the supporting brake beam, and brake shoe brake cheek is directed into and take turns Zhou Peihe correctly brakes.
As disclosed in the US Patent 4,830,148 that transfers cessionary of the present invention, in brake beam 1 of Shi Yonging and 2 the preferred structure, brake beam is at their mid point bending forming V-shape in the present invention.
This set does not adapt to better installs the brake equipment element with the brake beam element with interfering, meanwhile can with brake brake activation application of force as the crow flies, to avoid the brake beam moment of torsion.
Near tension element 6, being pivoted on by a pin 8 on depression bar element 7 rising parts is a transmission levers 9 that links to each other with brake beam 1.Similarly, a transmission levers 10 is pivoted on the rising part of the depression bar element 7 that links to each other with brake beam 2 by a pin 11.These transmission levers 9 and 10 are installed in tension element 6 above the time, transmission levers 9 and 10 position can not interfered with it after the transmission levers rotation near the tension element of each beam.Above-mentioned bending beam notion can promote transmission levers from the beam mid point, will remain on and brake beam end coplane by these levers simultaneously, and do not have brake torque to beam brake activation hoof power this moment.
Transmission levers 9 and 10 counterpart arm are coupled to each other by force transmission element 12 and 13.
In contract a position between element 5 and the tension element 6 of a side pressure of depression bar element 7, brake cylinder 14 suitably is installed on the brake beam 1 by Bolt Connection, perhaps is fixed on the beam compressing member 5 by alternate manner.Replacedly, brake cylinder 14 can be carried by brake equipment, rather than direct mount is to brake beam, particularly at the brake cylinder that uses the light weight type, under the situation as swelling gasbag.Piston push rod 17 connects with the arm 19 of transmission levers 9 by a pin 18, and an end of pitman 20 passes through one and sells 21 and connect with the arm 22 of transmission levers 10.
The other end of pitman 20 is connected on the lug 23 of brake-cylinder pressure head 15 by the hole 23a pin of an expansion.This rotation connects the vertical relatively and cross motion that can adapt to each brake beam and corresponding attaching parts, and can not be strapped in brake cylinder pitman joint.
What be equipped with above-mentioned brake equipment is a prior art hand braking mechanism, comprises 32, one thrust bearings 33 of an actuation lever and a U-shaped transmission connection piece 34.Thrust bearing 33 as being fastened on the end 7a of depression bar element 7 by cap screw 33a, and comprises sidewall 35 and a diapire 36 of a pair of spaced apart parallel of stretching out from a base 37 near tension elements 6 by rights.Sidewall 35 be arranged to vertical direction at an angle, and form a pit with diapire 36, an axle head 38 of actuation lever 32 is contained in this pit with limited freedom of motion.Actuation lever 32 is installed on the transmission levers 9 by means of transmission connection piece 34, and this transmission connection piece 34 has a U-shaped hook 39 at the one end, has an opening 40 at its other end, and the arm 19 of transmission levers 9 passes this opening 40.The U-shaped chimoto of transmission connection piece 34 pivots with actuation lever 32 by a pin 41 and connects, and reverse with respect to a end with opening 40, thereby support actuation lever 32 at an angle with transmission levers 9, the angle that this angle forms corresponding to the wall 35 by thrust bearing 33.Transmission levers 9 is at its routine shape of reversing end that has an opening 40 corresponding to transmission connection piece 34 groove 42 at an angle.This groove 42 is used for correctly locating and keeping the position of transmission connection piece 34, and transmission connection piece 34 has been set up the attitude of actuation lever 32 with respect to transmission levers 9 attitudes again.Actuation lever 32 is chosen to as described below with respect to the angular pose of the horizontal attitude of transmission levers 9, when being operated by actuation lever, optimize the lever ratio of actuation lever 32 and transmission levers 9, thereby the required this mechanical advantage for hand braking system is provided.Actuation lever 32 and axle head 38 opposite ends 43 are used for connecting with the hand braking chain of railway car hand brake (not shown).
As shown in Fig. 4,5 and 6, the axle head 38 of actuation lever 32 is provided with two curved section 44 and 45 of being separated by a plane 46 in the prior art.The position of each in these curved section 44 and 45 is near the base 37 of thrust bearing 33, and according to the position of actuation lever in its opereating specification, one or another are used for cooperating with base 37, so that a pivotable fulcrum of bar to be provided.Which curved section to provide fulcrum according to, can obtain one for example corresponding to the mechanical advantage of 3.962: 1 lever ratios or 3.095: 1 lever ratios.Though the radius of different curved section can be different, be identical before and after each section radius separately.Thus, and because the U-shaped hook pin hole 41a in the lever 32 is because of connecting restrained can not moving by transmission connection piece 34 in horizontal surface with transmission levers 9, which cooperate with the base 37 of thrust bearing 33 according to curved section, a lever ratio is effective in the bar rotary course, rotate to simultaneously with thrust bearing base 37 up to another curved section and to cooperate, make another lever ratio also become effective.
Now especially with reference to Fig. 7 and 8.Wherein illustrate a current preferred hand brake lever, represent with 100 generally, comprise an arch section 106.The effect of this arch section 106 will illustrate below.A currently preferred embodiment of thrust bearing 110 also is shown among Fig. 7 and 8, is provided with a pin 104 in this thrust bearing 110, the arch section 106 of bar 100 is around these pin 104 rotations.
When hand brake lever 32 rotated in its opereating specification, the purpose that changes lever ratio automatically was to limit its rotating range, thereby prevented otherwise the contingent and interference open-top car axle.The release position of hand brake lever shown in Fig. 4 32, complete application site shown in Fig. 6, midway location shown in Fig. 5.In addition, among Fig. 4 and 6 with the midway location of shadow representation hand brake lever 32, with expression hand brake lever 3 from the release position to the midway location (Fig. 4) and from the application site to the midway location movement degree of (Fig. 6).Among Fig. 4, this motion is expressed as distance X in the end 43 of hand brake lever 32, is expressed as distance X in Fig. 6 ', for the given movement degree of U-shaped hook pin hole 41a, and compare among Fig. 6, because the actv. lever ratio is bigger among Fig. 4, distance X is greater than distance X '.
As everyone knows, generally by a bell crank connecting rod (not shown) work, this bell crank connecting rod at first provides quick tension with lower mechanical advantage to hand braking chain, slowly strains with higher mechanical advantage subsequently.Be appreciated that, be designed between each fulcrum of hand brake lever, change, thereby it is in the process that hand braking chain is operated in the slow tension zone of hand braking bell crank connecting rod (high mechanical advantage), effective corresponding to the curved section 45 of the low lever ratio of hand brake lever 32.Vice versa.
According to the present invention, the hand brake response perhaps responds the operation of the hand-made driving wheel of rolling stock, and operates by brake equipment in the air supply and the release of brake cylinder device 14.
In response to brake cylinder 14 supply pressurized airs and carry out under the situation of aerobraking, push rod 17 be forced to respect to the left-hand of brake cylinder body to moving, the brake cylinder body is fixed on the compressing member 5 of brake beam 1.
Similarly, as seeing among Fig. 1, when straining hand braking chain with known manner, end 43 rotation in the counterclockwise direction of actuation lever 32 forces the base 37 of an axle head 38 contact thrust bearings 33 of actuation lever, thereby by transmission connection piece 34 pulling transmission levers 9.
Because as push rod 17, transmission connection piece 34 connects with the arm 19 of transmission levers 9, clearly, as seeing among Fig. 1, under aerobraking application and two kinds of situations of hand braking application, transmission levers 9 all is forced to rotate in the counterclockwise direction.
This left-hand revolution of transmission levers 9 causes force transmission element 13 to move at right-hand lay, makes transmission levers 10 around its pivotal pin 11 left-hand revolutions so again.Because the pitman 20 of force transmission element 12 presses the lug 23 on the manometric head that is formed on brake cylinder 14, has run into resistance of motion in the end of the transmission levers 10 that connects with pitman 20 by pin 21, thereby transmission levers 10 is as a second stage bar.Therefore the power that is applied to transmission levers 18 other ends by force transmission element 13 causes transmission levers 10 to pivot in the counterclockwise direction around its pin 11, thereby move brake beam 2 with connecting of depression bar element 7 at right-hand lay by transmission levers 10, make the coupled wheel Zhou Peihe of brake shoe brake cheek of the braking that links to each other with brake beam 24.
Cooperate in case at brake beam 2 places brake shoe brake cheek takes place, transmission bar lever arm 26 is sold at it with force transmission element 13 and connecting of 27 places is become firm, and transmission levers 9 also becomes second stage bar.Cause transmission levers 9 left-hand revolutions like this.This rotation is by realizing around pin point of attachment 27 pivotal rotation of transmission levers 9 with force transmission element 13.Therefore, pin 8 effects of the depression bar element 7 of the hand brake force that is applied by transmission levers 9, direction promotes brake beam 1 leftward, thereby makes the coupled wheel Zhou Peihe of brake shoe brake cheek of the braking that links to each other with brake beam 14.
Because lax control apparatus 24 is before in US Patent 4,662, open in 485, here should be to say, as mentioned above, in hand braking application process, lax control apparatus 24 can bear the compressive force that is applied on the force transmission element 13, wherein lax regulating control 24 is a global facility, because do not having under the situation of over travel owing to brake shoe brake cheek weares and teares, actuating arm 47 keeps breaking away from retaining nut 48.Should also be noted that, because having taken place in the brake application in front, the brake shoe brake cheek wearing and tearing do not exist under the situation of over travel, lax adjuster device 24 with will occur in brake shoe brake cheek/wheel Zhou Peihe cooperating of retaining nut 48 before, move to start lax adjusting.
When brake application is removed, each brake beam by gravity and by brake cylinder trip spring (not shown) below a punctured position moves to inclined guide pit in the open-top car side frame, at this punctured position, the brake shoe brake cheek of each brake beam keeps and all brake areas of the wheel that the links to each other predetermined distance of being separated by.Initially unclamping in the motion process, lax control apparatus 24 reacts on the actuating arm 47 that has activated, thereby further extends lax regulating control, is pivoted to up to actuating arm 47 to break away from and the cooperating of retaining nut 48.When this incident is given birth to, lax will being tightened up, to compensate any brake shoe brake cheek wearing and tearing, lax regulating control is now with locked, to bear the power that applies by equipment when brake beam shrinks continuously.Brake beam shrinks and mobile brake shoe brake cheek breaks away from all the cooperating of wheel and causes transmission bar lever arm 26 and 31 and force transmission element 12 and 13, and brake beam 1 and 2, with the brake application process in the opposite mode that takes place move.
Be appreciated that, by one side of brake cylinder 14 being fixed on the brake beam 1 at compressing member 5 places, and make lax actuating arm 47 sensings of regulating be positioned at retaining nut 48 on the transmission levers 9, relation between actuating arm and the hoof wearing and tearing reference point that provided by retaining nut 48 all keeps constant for the position of any given brake beam, thereby guarantee accurately to read the brake shoe brake cheek wearing and tearing, thereby read by lax the adjusting and operate the lax tension that causes.
In addition, by the brake equipment effect, the braking force under every kind of situation is applied to the mid point of each beam to hand brake force, promptly is applied on its depression bar element 7 in the mode identical with the brake cylinder application of force, and this fact meets the hope of using conventional low-cost type brake beam.
As shown in Fig. 4,5 and 6, in the above-mentioned rotary course of its whole opereating specifications of process of hand brake lever 32, we can notice that curved section 44 at first cooperates with the base 37 of thrust bearing 33, with provide hand brake actuation lever 32 in rotary course, pivot around fulcrum.Like this, hand brake actuation lever 32 is as a second stage bar, compare with U-shaped hook pin 41 and the distance between the fulcrum of curved section 44, this second stage bar has the primary lever ratio of being determined by the distance between the fulcrum at the hand braking chain connection at 43 places, end and curved section 44 places.
Some given position in the middle of the rotation limit of hand brake actuation lever 32, the bar attitude can place plane 46 on the base 37 of thrust bearing 33.Hand brake actuation lever 32 is rotated continuously from this midway location and is caused curved section 45 to cooperate with the base 37 of thrust bearing 33, and curved section 44 breaks away from bases 37.
Therefore, compare with U-shaped hook pin 41 and the distance between the fulcrum of curved section 44, initial primary lever connects a definite secondary lever ratio of distance between the fulcrum with curved section 45 places than the instantaneous hand braking chain that is reduced to by 43 places, end.
The primary lever ratio is chosen to activate brake equipment with normal manual hand, and hand braking bell crank connecting rod (not shown) provides lower mechanical advantage in this process.At the hand brake lever fulcrum after curved section 44 is transformed into curved section 45, it is effective that secondary lever ratio becomes, compare when providing fulcrum by curved section 44, for the given moving cell of transmission connection piece 34, produce a relatively short range of movement at 43 places, end of hand brake lever 32.The result of this double leverage ratio has reduced the four corner that hand brake lever 32 moves between releasing of brake and application site, thereby prevents to interfere with adjacent shaft.
This is to realize under the situation that needn't apply too much manual hand, because the mechanical advantage that is provided by hand braking bell crank improves in the process of hand brake lever 32 secondary lever ratio operation according to it.
By the anglec of rotation of fixedly setting about the transmission levers 9 of brake actuating lever 32 thereon by transmission connection piece 34, actuation lever 32 restrained and can not be in the plane of rotation of transmission levers 9 lateral offset.But when allowing axle head 38 free floatings of hand brake lever 32, be appreciated that and cooperate with the base 37 of thrust bearing 33 at difference, to adapt to the angle of transmission levers 9.
In addition, when base 37 bearing fits of an axle head 38 that allows hand brake actuation lever 32 and thrust bearing 33, as what provide by one in the curved section 44,45 or another, can adapt to the change of hand brake actuation lever angle in the hand brake operation process, and can any constraint not arranged the brake equipment element.
According to aforementioned, because the hand brake actuation lever 32 and the two the anglec of rotation of transmission levers 9 of fixing transmission connection piece 34 on it, between the area supported that axle head 38 and base by thrust bearing 33 provide bearing fit taking place, therefore has the motion that reflects transmission and the two angle of hand brake lever.
Except eliminating the constraint to the brake equipment element, an axle head that is free to slide of hand brake lever 32 has also been eliminated otherwise can be applied to torsional forces on the brake beam.
The sidewall 35 of thrust bearing 33 and diapire 36 form a pit, prop up axle head 38 and in this pit, have limited free motion, it is in order to prevent that an axle head 38 is involved in the brake equipment under the extreme applications condition that these walls are set, for example contingent in the operating process of handwheel devices rapid release when hand braking chain tension discharges suddenly.
Claims (18)
1. hand braking system that is used for rolling stock, comprise the brake beam that first and second spaces separate, first and second transmission levers, the point of this first and second transmission levers in the middle of their end connects with a cooresponding pivot in above-mentioned first and second brake beams, first and second force transfering devices that between the counterpart arm of above-mentioned first and second transmission levers, are coupled to each other, above-mentioned first force transfering device comprises brake actuator, this brake actuator can respond to the fluid pressure of its supply and operate, to increase the length of above-mentioned first force transfering device, thereby increase the spacing distance between above-mentioned first and second brake beams, a transmission connection piece, this transmission connection piece connects with above-mentioned first transmission levers, thereby can in a plane of the plane of rotation that is parallel to above-mentioned second transmission levers, accurately move therewith, improvements comprise a thrust bearing that is arranged on above-mentioned first brake beam, above-mentioned thrust bearing has a pin element that is arranged at wherein, with an actuation lever, this actuation lever has pivot with the position of above-mentioned transmission connection piece in the middle of their end and connects, an end that is close to above-mentioned actuation lever has an arch section, this arch section can cooperate with above-mentioned pin element rotation, and is suitable for receiving hand brake force.
2. hand braking system as claimed in claim 1, wherein the above-mentioned other end of above-mentioned actuation lever comprise with above-mentioned actuation lever and above-mentioned transmission connection piece between above-mentioned pivot connect first and second curved section at a distance of different distance.
3. the hand braking system described in claim 2, wherein above-mentioned at least first brake beam comprises a compressing member, a tension element that connects with above-mentioned compressing member in its each end, and mid point at them is clipped in the depression bar element between above-mentioned compression and the tension element.
4. the hand braking system described in claim 3 also comprises a thrust bearing, and this thrust is seated against above-mentioned depression bar element and connects with above-mentioned first brake beam with the junction of above-mentioned tension element, comprising:
(a) base that above-mentioned area supported is provided;
(b) a pair of spaced apart parallel sidewall that stretches out from above-mentioned base;
(c) diapire, this diapire stretches out from above-mentioned base in the middle of above-mentioned first and second sidewalls, and cooperates with them and form a pit, and the above-mentioned other end of above-mentioned actuation lever can be engaged in this pit.
5. hand braking system as claimed in claim 2, wherein the above-mentioned fulcrum that is provided by above-mentioned first curved section has been set up first lever ratio of above-mentioned actuation lever, and the above-mentioned fulcrum that is provided by above-mentioned second curved section has been set up second lever ratio less than the above-mentioned actuation lever of above-mentioned first lever ratio.
6. hand braking system as claimed in claim 1, wherein above-mentioned at least first brake beam comprises a compressing member, a tension element that connects with above-mentioned compressing member in its each end, and mid point at them is clipped in the depression bar element between above-mentioned compression and the tension element.
7. hand braking system as claimed in claim 6, the above-mentioned pivot between wherein above-mentioned first transmission levers and above-mentioned first brake beam is connected on above-mentioned depression bar element place.
8. hand braking system as claimed in claim 7, wherein above-mentioned transmission connection piece connects with above-mentioned first transmission levers at a point that connects with above-mentioned pivot between the above-mentioned depression bar element near above-mentioned first transmission levers, thereby above-mentioned actuation lever is arranged to respect to the plane of rotation of above-mentioned first transmission levers at an angle.
9. hand braking system as claimed in claim 8 also comprises a thrust bearing, and this thrust is seated against above-mentioned depression bar element and connects with above-mentioned first brake beam with the junction of above-mentioned tension element, comprising:
(a) base;
(b) a pair of spaced apart parallel sidewall that stretches out from above-mentioned base;
(c) diapire, this diapire stretches out from above-mentioned base in the middle of above-mentioned first and second sidewalls, and cooperates with them and form a pit, and the above-mentioned other end of above-mentioned actuation lever can be engaged in this pit.
10. hand braking system as claimed in claim 9, wherein above-mentioned oppose side wall has an inclination angle, the above-mentioned angle that this inclination angle is provided with respect to above-mentioned first transmission levers corresponding to above-mentioned actuation lever.
11. hand braking system as claimed in claim 10, distance between the wherein above-mentioned sidewall is sufficiently more than the correspondingly-sized of above-mentioned actuation lever, thereby allow it to follow the above-mentioned arcuate movement of above-mentioned transmission connection piece and move, and above-mentioned actuation lever can not run into above-mentioned sidewall.
12. hand braking system as claimed in claim 8, wherein above-mentioned transmission connection piece is a U-shaped, its sweep ends at a forked section that connects with above-mentioned actuation lever, connect thereby provide with the pivot of above-mentioned transmission connection piece, above-mentioned sweep forms the opening that above-mentioned first transmission levers can therefrom pass, above-mentioned sweep reverses with respect to above-mentioned forked section, and the degree of reversing is corresponding to the above-mentioned angle of above-mentioned actuation lever with respect to the plane of rotation setting of above-mentioned first transmission levers.
13. hand braking system as claimed in claim 12, wherein above-mentioned first transmission levers forms a groove, the above-mentioned sweep of above-mentioned transmission connection piece can be engaged in this groove, with the above-mentioned angle of fixing above-mentioned actuation lever with respect to above-mentioned first transmission levers setting.
14. hand braking system as claimed in claim 13, wherein the above-mentioned other end of above-mentioned actuation lever comprise with above-mentioned actuation lever and above-mentioned transmission connection piece between above-mentioned pivot connect first and second curved section at a distance of different distance, above-mentioned first curved section can cooperate with above-mentioned area supported, with provide above-mentioned actuation lever in its first rotating range, rotate around above-mentioned fulcrum, above-mentioned second curved section can cooperate with above-mentioned area supported, with provide above-mentioned actuation lever in its second rotating range, rotate around above-mentioned fulcrum.
15. hand braking system as claimed in claim 14, wherein the above-mentioned fulcrum that is provided by above-mentioned first curved section has been set up first lever ratio of above-mentioned actuation lever, and the above-mentioned fulcrum that is provided by above-mentioned second curved section has been set up second lever ratio less than the above-mentioned actuation lever of above-mentioned first lever ratio.
16. hand braking system as claimed in claim 15 also comprises a thrust bearing, this thrust is seated against above-mentioned depression bar element and connects with above-mentioned first brake beam with the junction of above-mentioned tension element, comprising:
(a) base;
(b) a pair of spaced apart parallel sidewall that stretches out from above-mentioned base;
(c) diapire, this diapire stretches out from above-mentioned base in the middle of above-mentioned first and second sidewalls, and cooperates with them and form a pit, and the above-mentioned other end of above-mentioned actuation lever can be engaged in this pit.
17. hand braking system as claimed in claim 16, wherein above-mentioned oppose side wall has an inclination angle, the above-mentioned angle that this inclination angle is provided with respect to above-mentioned first transmission levers corresponding to above-mentioned actuation lever.
18. hand braking system as claimed in claim 17, distance between the wherein above-mentioned sidewall is sufficiently more than the correspondingly-sized of above-mentioned actuation lever, thereby allow it to follow the above-mentioned arcuate movement of above-mentioned transmission connection piece and move, and above-mentioned actuation lever can not run into above-mentioned sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100089295A CN1669856A (en) | 2004-03-15 | 2004-03-15 | Improved hand brake lever interface for single-cylinder truck-mounted railway car brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100089295A CN1669856A (en) | 2004-03-15 | 2004-03-15 | Improved hand brake lever interface for single-cylinder truck-mounted railway car brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1669856A true CN1669856A (en) | 2005-09-21 |
Family
ID=35041350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100089295A Pending CN1669856A (en) | 2004-03-15 | 2004-03-15 | Improved hand brake lever interface for single-cylinder truck-mounted railway car brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1669856A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101983883A (en) * | 2010-10-29 | 2011-03-09 | 齐齐哈尔轨道交通装备有限责任公司 | Brake beam of railway vehicle |
| CN102900154A (en) * | 2012-11-05 | 2013-01-30 | 秦雨舟 | Joint for unit type space truss |
| CN102963391A (en) * | 2012-11-07 | 2013-03-13 | 南车长江车辆有限公司 | High-hand-braking-magnification rail wagon integrated brake device |
| RU222554U1 (en) * | 2023-09-27 | 2024-01-09 | Акционерное общество "Рузаевский завод химического машиностроения" (АО "Рузхиммаш") | BRAKE LEVER GEAR OF RAILWAY VEHICLE |
-
2004
- 2004-03-15 CN CNA2004100089295A patent/CN1669856A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101983883A (en) * | 2010-10-29 | 2011-03-09 | 齐齐哈尔轨道交通装备有限责任公司 | Brake beam of railway vehicle |
| CN102900154A (en) * | 2012-11-05 | 2013-01-30 | 秦雨舟 | Joint for unit type space truss |
| CN102963391A (en) * | 2012-11-07 | 2013-03-13 | 南车长江车辆有限公司 | High-hand-braking-magnification rail wagon integrated brake device |
| CN102963391B (en) * | 2012-11-07 | 2015-01-07 | 南车长江车辆有限公司 | High-hand-braking-magnification rail wagon integrated brake device |
| RU222554U1 (en) * | 2023-09-27 | 2024-01-09 | Акционерное общество "Рузаевский завод химического машиностроения" (АО "Рузхиммаш") | BRAKE LEVER GEAR OF RAILWAY VEHICLE |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5069312A (en) | Handbrake for single-cylinder truck-mounted railway car brake | |
| KR101578232B1 (en) | Combination cylinder with power-transmitting transmission having variable gear ratio | |
| US4771868A (en) | Handbrake mechanism for single-cylinder, truck-mounted railway car brake assembly | |
| US4613016A (en) | Single-cylinder truck-mounted brake assembly | |
| CN1157596A (en) | Cable slack adjuster | |
| CA2442787C (en) | Improved hand brake lever interface for single-cylinder truck-mounted railway car brake | |
| CN102282054A (en) | Vehicle and truck assembly | |
| WO2006062734B1 (en) | Disk brake arranged tmx | |
| CA2122883C (en) | Truck mounted brake apparatus | |
| CN102076537A (en) | Brake actuating device of vehicle | |
| EP0049085A1 (en) | Hydraulic wheel cylinder assemblies and drum brakes incorporating same | |
| CN1669856A (en) | Improved hand brake lever interface for single-cylinder truck-mounted railway car brake | |
| US6971488B1 (en) | Simplified truck mounted brake system | |
| CN1046341C (en) | Automatic adjusting strut for drum brake | |
| CN1747889A (en) | Nagative brake device, construction machine, and method of activating negative brake | |
| EP1535817B1 (en) | Improved hand brake lever interface for single-cylinder truck-mounted railway car brake | |
| US4993521A (en) | Tread brake unit | |
| US2134512A (en) | Brake | |
| EP1350978B1 (en) | Dual mode drum brake | |
| AU2003248408A1 (en) | Improved hand brake lever interface for single-cylinder truck-mounted railway car brake | |
| JP5758239B2 (en) | Drum brake device | |
| KR20010070502A (en) | Drum brake system | |
| MXPA03009589A (en) | Improved hand brake lever interface for single-cylinder truck-mounted railway car brake. | |
| RU198247U1 (en) | Drive train brake lever regulator | |
| RU201040U1 (en) | PARKING BRAKE OF A FREIGHT CAR WITH SEPARATE BRAKE BRAKES |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |