CN1396874A - Railway truck with equalizer beam mounted disc brake caliper - Google Patents
Railway truck with equalizer beam mounted disc brake caliper Download PDFInfo
- Publication number
- CN1396874A CN1396874A CN 01804400 CN01804400A CN1396874A CN 1396874 A CN1396874 A CN 1396874A CN 01804400 CN01804400 CN 01804400 CN 01804400 A CN01804400 A CN 01804400A CN 1396874 A CN1396874 A CN 1396874A
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- CN
- China
- Prior art keywords
- disc
- brake
- configuration
- clamp
- assembly
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H5/00—Applications or arrangements of brakes with substantially radial braking surfaces pressed together in axial direction, e.g. disc brakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H13/00—Actuating rail vehicle brakes
- B61H13/34—Details
- B61H13/36—Beams; Suspension thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
A disc brake assembly for a railway truck is provided. The truck (10, 11) includes at least two wheel axle sets (22, 23) and brake discs (12, 13) mounted to the wheel axle sets (22, 23). Extending between the wheel axle sets (22, 23) is a longitudinally extending truck frame (20, 21). Also extending between the wheel axle sets (22, 23) and supporting the truck frame (20, 21) via primary springs (65) are equalizer beams (64) that further extend beyond the wheel sets (22, 23) and through an opening (70) in the truck frame (20, 21). Disc brake calipers (62) are mounted to the equalizer beams (64) with the caliper (62) engaging the brake discs (12, 13) of the wheel sets. The assembly results in the brake discs (12, 13) and calipers (62) being unsprung. In other words, the brake discs (12, 13) and calipers (62) do not move relative to each other.
Description
Technical field
The present invention relates generally to a kind of improved brake assembly that is used for railway goods train bogie, especially but shown in being not limited to and described special-purpose, the present invention relates to the disc-brake assembly and install in the improvement of roller bearing adapter stabilizer bar.
Background technology
In this area, the disc-brake assembly is well known as the stop mechanism of the railway bogie that comprises passenger vehicle and roller bearing adapter stabilizer bar.Be that the disc-brake assembly comprises brake disc, disc-brake clamp and brake pad also in this area for people are known.In the use, brake disc is usually directly in being installed on the steering framing wheel Shaft assembly on the axle or by wheel.Under two kinds of installation forms, brake disc is that unsprung is installed.That is brake disc does not move with respect to axle assembly.
The disc-brake clamp are installed on the truck frame and engage brake dish releasedly usually.What be fitted to the disc-brake clamp is brake pad, and it contacts brake disc in operation to form the braking force for wheel.Passenger vehicle and roller bearing adapter stabilizer bar are characterized by has one first to be spring suspension between axle assembly and truck frame, and it allows the relative vertical movement between axle assembly and truck frame and the relevant disc-brake clamp.Like this, the disc-brake clamp are that spring loaded is installed with respect to axle assembly and brake disc.
On passenger car bogie, this relative motion between the brake disc that the brake caliper that spring loaded is installed and unsprung are installed is limited by some design factors: on passenger car bogie the load-carrying deadweight smaller so that since the deflection that the static weight variation causes minimize; Thereby the disc-brake clamp are positioned at the inboard restriction of axle usually in the vertical because the skew that truck frame jolts and causes; Second be spring suspension between truck frame and bolster absorbing most of vertical suspension deflection, to win be that spring suspension has big rigidity thereby make.Integrate, these passenger car bogie design factors have limited the main spring distortion, be enough to adapt to brake caliper that spring loaded installs and and the brake disc installed of unsprung, the problem that does not cause the roller bearing adapter stabilizer bar of ubi infra to run into.
As mentioned above, when the roller bearing adapter stabilizer bar framework be installed in one first be spring suspension such as a main spring on the time, the disc-brake clamp are that spring loaded is installed with respect to brake disc.At the lorry run duration, because such as wagon load, dynamic vibration, truck frame various conditions such as jolt, the spring loaded of described clamp are installed the undesirable relative vertical movement amount between the brake caliper that causes brake disc that unsprung installs and spring loaded installation.Using softer main spring with during guaranteeing safe in operation and having the high-speed cruising of the lorry of acceptable running quality on the track now, this undesirable relative vertical movement is exaggerated.Use soft spring to produce big deflection of spring, shown two the common problems that cause; The first, as the brake pad of a caliper assembly part may the worn brake disc of part the edge, thereby reduce brake efficiency; The second, the brake pad antagonistic force arrives truck frame via the brake caliper component passes.These antagonistic forces cause momentum in truck frame, each main spring is unloaded.When truck frame jolts when serious, each main spring may unload fully, even the possibility that causes spring displacement spring to come off from the bogie truck assembly.
Summary of the invention
The present invention has overcome the problems referred to above that overexercise between brake disc and the clamp and potential spring unload.
The present invention is intended to eliminate because these known problems that the relative motion with between brake disc and the clamp that the load-up condition that the High-Speed Freight Vehicle run duration produces and other dynamic force cause is associated.The present invention realizes these purposes by a kind of disc-brake assembly is provided, and wherein, brake caliper is installed on equalizer, and it is that unsprung is installed with respect to axle assembly.Adopt this structure, the brake caliper both of brake disc is the member that unsprung is installed, and relative to each other unsprung is installed.Install because these members are unsprungs, because load change, dynamic vibration and braking cause, and the relatively moving between the brake disc that causes and the clamp of jolting eliminated basically.In addition, the possibility unloaded of main spring also is eliminated.
Description of drawings
Below with reference to accompanying drawing embodiments of the invention are described, wherein:
Fig. 1 is existing bogie truck assembly partial side view;
Fig. 2 is the partial top view of the existing bogie truck assembly of Fig. 1;
Fig. 3 is the partial side view of another existing bogie truck assembly;
Fig. 4 is the partial top view of the existing bogie truck assembly of Fig. 3;
Fig. 5 is the partial side view of bogie truck assembly of the present invention;
Fig. 6 is the partial top view of the present invention of Fig. 5;
Fig. 7 is the isometric view that is connected in a pair of equal Heng Liang of the present invention of a pair of disc-brake mounting rail.
The specific embodiment
Represent each accompanying drawings of identical parts referring to same reference numerals, Fig. 1-4 has showed existing bogie truck assembly, has shown that the disc-brake clamp install with respect to the spring loaded of brake disc.As shown, bogie truck assembly 10 and 11 respectively as shown in figs. 1 and 3, comprises bogie truck brake disc 12 and 13, brake disc 12 and 13 or directly be installed on the Shaft assembly by wheel 16 on axle 14 or shown in Fig. 3 and 4 as illustrated in fig. 1 and 2.In both cases, brake disc is that unsprung is installed (unsprung) and therefore is not equivalent to the vehicle wheel component motion.The bogie truck assembly also comprises the disc braking dish clamp 18 and 19 that are installed on truck frame 20 and 21.Truck frame is that spring suspension is installed on axle assembly 22 and 23 via first again.Adopt this configuration, the disc-brake clamp are that spring loaded is installed, and perhaps are equivalent to the vehicle wheel component vertical movement during operation.Show, during operation, because load-up condition, dynamic vibration and truck frame jolt, wherein these existing assemblies of installing with respect to the brake disc spring loaded of clamp cause the vertical relative motion between the clamp that brake disc that undesirable unsprung installs and spring loaded install.In some cases, for using soft main spring bogie truck assembly, relatively vertical movement may be so so that the edge of the worn brake disc of brake pad sector-meeting part, thereby reduce brake efficiency, and may be so serious so that main spring displacement or come off from the bogie truck assembly.
Referring to Fig. 5 and 6, the present invention shows wherein and has overcome Problem of Relative Movement between brake disc and the clamp.As showing in the exemplary embodiments, the present invention includes bogie truck assembly 40, it is equipped with the disc-brake assembly of the present invention of ubi infra.Bogie truck assembly 40 comprises that also wheel shaft to 42, comprises flange railway wheel 44, and is spaced each other and connected by the axle 46 of a horizontal expansion.What be installed on wheel 44 is brake disc 48.The insider should be appreciated that the present invention can be used for being installed on the brake disc of wheel or axle.Truck frame 50 is supported on wheel to last by equalizer 64 and main spring 65.As habitually in the past, truck frame 50 is longitudinally elongated and limits the longitudinally-spaced drawing strickle guide mouth 52 that opens wide downwards.The drawing strickle guide mouth limits a pedestal leg 54 and an outer pedestal leg 56 in one.Being installed in the drawing strickle guide mouth between interior and outer pedestal leg in uncovered is axle box 58, and axle box 58 is via the equipped rotationally axle 46 of journal bearing.Axle box 58 remains between the interior and outer pedestal leg by supporting plate 60 (tie bar).
Bogie truck 40 also comprises disc-brake clamp 62, and it is installed on equalizer 64 via an erecting frame 66.The insider should be appreciated that disc-brake clamp 62 can comprise bolt, fourth of the twelve Earthly Branches nail, welding or other the suitable methods used by numerous installation method realizations via the installation of erecting frame 66.What be fitted to disc-brake clamp 62 is brake pad 68, and it engages the brake disc 48 of railway wheel when operation.In an exemplary embodiments, equalizer 64 extend in each wheel between and vertically extend through axle box by aperture on the outer pedestal leg 56 of drawing strickle guide mouth 52 or heart hole 70.The insider should be appreciated that other design forms of equalizer also are possible.Detachable pad 72 is positioned on all four pedestal legs, to allow to extend the assembling and/or the dismounting of equalizer 64.In the design of single equilibrium beam bogie truck, equalizer longitudinal extension and being located in the horizontal on the center line of journal that passes through between the interior and outer face (inside and outside faces) of pedestal leg in each between axle box respectively has a line of centers in each side of bogie truck.Pad 72 is detachable pillar (solid block), after equalizer is equipped, be fastened in the pedestal leg (split pedestalleg) of trough of belt and between the outer face with structurally replace the material removed from the trough of belt pedestal leg with the permission equalizer in the assembling or the dismounting of truck frame.Typically, need pad, and be fixed tightly on the threaded fasteners by fourth of the twelve Earthly Branches nail at an end place of each truck frame.Because the development length of equalizer for the dish type brake caliper is installed, needs pad so that the Assembly ﹠Disassembly of equalizer at all four interior pedestal leg places in the present invention.
Referring to Fig. 7, an alternate embodiment of the present invention comprises using and is connected in and across the disc-brake mounting rail 80 of opposed equalizer 64, to provide a kind of for the disc-brake clamp mounting structure that substitutes.The disc-brake mounting rail is installed on a respective end of equalizer 64 pivotally at its place, end.Can be by using resilient bushing 82 or allowing other similar installation methods of the limited angular motion of two equalizers on the relative both sides of bogie truck to install.Adopt this structure, the disc-brake clamp can be installed on the disc-brake mounting rail 80.
Importantly, after the assembling, brake disc is the unsprung installation component with clamp and relevant brake pad.The device of this kind uniqueness if not fully, is eliminated because load change significantly, dynamic vibration and braking cause the relatively moving between the brake disc that causes and the clamp of jolting.In addition, eliminated the possibility that main spring unloads.
Should be appreciated that without departing from the premise in the spirit of the present invention the various remodeling of embodiment all are possible.Therefore, the scope of the invention is limited by following claim.
Claims (18)
1, a kind of configuration in railroad truck assembly, the axle that comprises at least two longitudinally-spaced horizontal expansions, be installed on the wheel of described axle, be installed on the brake disc of described wheel, the truck frame of spaced longitudinal extension, it limits the drawing strickle guide mouth of the equipped described axle that extends downwards, at least one equalizer, it extends between the described axle and vertically extends through described axle also by the aperture on the described drawing strickle guide mouth, one is installed on the disc-brake clamp of described equalizer, described clamp engage the brake disc of described wheel, install thereby described brake disc and described clamp are unsprungs.
2, configuration in railroad truck assembly as claimed in claim 1 wherein, also comprises an erecting frame, and described disc-brake caliper assembly is installed on described erecting frame.
3, configuration in railroad truck assembly as claimed in claim 1, wherein two equalizers are installed in the relative both sides of described bogie truck assembly.
4, configuration in railroad truck assembly as claimed in claim 3 wherein, also is included in the disc-brake mounting rail that extends between described two equalizers.
5, as the described configuration in railroad truck assembly of above-mentioned claim 4, wherein, also comprise the pad of the interior pedestal leg that is installed on described drawing strickle guide mouth.
6, a kind of configuration in railroad truck assembly comprises:
The axle of at least two longitudinally-spaced horizontal expansions is installed on the wheel of described axle, is installed on the brake disc of described wheel, the truck frame of spaced longitudinal extension, and it limits the equipped drawing strickle guide mouth that is installed on the axle box of described axle that extends downwards,
A pair of equalizer is installed in the relative both sides of described bogie truck assembly and longitudinally extends through axle box and pass a aperture on the described drawing strickle guide mouth,
At least one is at the described disc-brake mounting rail that extends between to equalizer,
One is installed on the disc-brake caliper assembly of described equalizer, and described disc-brake caliper assembly comprises clamp that engage with described wheel brake,
Thereby described brake disc and described clamp relative to each other are unsprungs to be installed.
7, configuration in railroad truck assembly as claimed in claim 6 wherein, also comprises an erecting frame, and described disc-brake caliper assembly is installed on described erecting frame.
8, configuration in railroad truck assembly as claimed in claim 7, wherein, two disc-brake mounting rails extend in described between the equalizer.
9, configuration in railroad truck assembly as claimed in claim 8 wherein, also comprises the pad of the interior pedestal leg that is installed on described drawing strickle guide mouth.
10, a kind of configuration in railroad truck assembly, it is right to have at least two wheels, be installed on the described right brake disc of taking turns, be installed on described truck frame of taking turns right spaced longitudinal extension, at least one equalizer, extend in described take turns between and longitudinally extend through described take turns to and pass a aperture on the described truck frame, and disc-brake clamp that are installed on described equalizer, described clamp joint is described takes turns right brake disc, thus the relative to each other motion of described brake disc and described clamp.
11, configuration in railroad truck assembly as claimed in claim 10 wherein, also comprises an erecting frame, and described disc-brake clamp are installed on described erecting frame.
12, configuration in railroad truck assembly as claimed in claim 11, wherein, two equalizers are installed on the opposite side of described bogie truck assembly.
13, configuration in railroad truck assembly as claimed in claim 12 wherein, also comprises the disc-brake mounting rail that extends between described two equalizers, and wherein said disc-brake clamp are installed on described disc-brake mounting rail.
14, configuration in railroad truck assembly as claimed in claim 12 wherein, also comprises two disc-brake mounting rails that extend between described two equalizers.
15, configuration in railroad truck assembly as claimed in claim 12 wherein, also comprises the pad that is installed on described truck frame.
16, a kind of configuration in railroad truck assembly comprises:
At least two wheels are right,
Be installed on the described right brake disc of taking turns,
Be installed on the described right truck frame of taking turns, described truck frame limits an aperture,
A pair of equalizer, be installed in the opposite side of described bogie truck assembly and longitudinally extend through described take turns to and pass described aperture on the described truck frame,
At least one is arranged on the pad in the described aperture on the described truck frame, and
Disc-brake clamp that are installed on described equalizer, described disc-brake clamp engage described brake disc,
Thereby described brake disc and described clamp relative to each other are not spring loadeds to be installed.
17, configuration in railroad truck assembly as claimed in claim 16 wherein, also comprises an erecting frame, and described disc-brake clamp are installed on described erecting frame.
18, configuration in railroad truck assembly as claimed in claim 17 wherein, comprises that also one extends in the disc-brake mounting rail between described two equalizers.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17922900P | 2000-01-31 | 2000-01-31 | |
| US60/179,229 | 2000-01-31 | ||
| US18319800P | 2000-02-17 | 2000-02-17 | |
| US60/183,198 | 2000-02-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1396874A true CN1396874A (en) | 2003-02-12 |
Family
ID=26875124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01804400 Pending CN1396874A (en) | 2000-01-31 | 2001-01-31 | Railway truck with equalizer beam mounted disc brake caliper |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1252052A4 (en) |
| CN (1) | CN1396874A (en) |
| AU (1) | AU3125201A (en) |
| CA (1) | CA2398646A1 (en) |
| MX (1) | MXPA02007273A (en) |
| WO (1) | WO2001054957A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009665A (en) * | 2010-11-19 | 2011-04-13 | 长春轨道客车股份有限公司 | Bogie shaft-mounted disc type braking device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2365724A (en) * | 1944-12-26 | Railway truck structure | ||
| US2295875A (en) * | 1940-09-23 | 1942-09-15 | American Steel Foundries | Rotor brake |
| US2423055A (en) * | 1944-12-14 | 1947-06-24 | Budd Co | Brake mounting |
| US2710676A (en) * | 1949-12-15 | 1955-06-14 | Gen Steel Castings Corp | Railway truck structure |
| SE7904523L (en) * | 1979-05-23 | 1980-11-24 | Sab Ind Ab | DISC BRAKE ARRANGEMENT FOR A RAILWAY VEHICLE |
-
2001
- 2001-01-31 MX MXPA02007273A patent/MXPA02007273A/en active IP Right Grant
- 2001-01-31 CA CA002398646A patent/CA2398646A1/en not_active Abandoned
- 2001-01-31 EP EP01903440A patent/EP1252052A4/en not_active Withdrawn
- 2001-01-31 CN CN 01804400 patent/CN1396874A/en active Pending
- 2001-01-31 WO PCT/US2001/003097 patent/WO2001054957A1/en not_active Application Discontinuation
- 2001-01-31 AU AU31252/01A patent/AU3125201A/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009665A (en) * | 2010-11-19 | 2011-04-13 | 长春轨道客车股份有限公司 | Bogie shaft-mounted disc type braking device |
Also Published As
| Publication number | Publication date |
|---|---|
| AU3125201A (en) | 2001-08-07 |
| MXPA02007273A (en) | 2003-02-12 |
| EP1252052A4 (en) | 2003-05-07 |
| WO2001054957A1 (en) | 2001-08-02 |
| EP1252052A1 (en) | 2002-10-30 |
| CA2398646A1 (en) | 2001-08-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |