CN114104027B - Axle-brake railway wagon bogie - Google Patents
Axle-brake railway wagon bogie Download PDFInfo
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- CN114104027B CN114104027B CN202111367966.5A CN202111367966A CN114104027B CN 114104027 B CN114104027 B CN 114104027B CN 202111367966 A CN202111367966 A CN 202111367966A CN 114104027 B CN114104027 B CN 114104027B
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H1/00—Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum, or the like
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Abstract
The invention discloses a wheel axle brake type railway wagon bogie, which comprises two wheel pair assemblies, two side frame assemblies, a swing bolster assembly and a foundation brake assembly, wherein the two wheel pair assemblies are arranged on the side frame assemblies; each wheel pair comprises an axle, a pair of wheels and a pair of brake wheels, wherein the pair of wheels are symmetrically arranged on the axle through wheel seats, the pair of brake wheels are symmetrically arranged on the axle through brake wheel mounting seats, and the pair of brake wheels are positioned between the pair of wheels. The auxiliary brake wheel is arranged, so that the grinding abrasion of the brake shoe to the wheel during the braking of the traditional railway vehicle and the influence of continuous temperature rise and reduction on the performance of the wheel material during the mutual friction of the wheel and the brake shoe are eliminated, the abrasion of the wheel during the running of the vehicle is greatly reduced, the structure is simple, the dead weight is light, and the manufacturing and application maintenance cost can be reduced.
Description
Technical Field
The invention relates to the technical field of railway wagon bogies, in particular to an axle-brake railway wagon bogie.
Background
The disc brake and tread brake technology is the most commonly used brake mode of railway vehicles, the technology development of railway wagons at home and abroad is that a disc brake technology is mostly adopted for rapid high-speed wagons, and a bogie is a welding framework; heavy-duty railway trucks commonly adopt wheel tile tread braking technology, and a bogie adopts a three-piece bogie. The cast steel three-piece bogie mainly comprises a swing bolster and two side frames, and has the characteristics of high design strength, simple and compact structure, fewer parts, convenience in maintenance, lower cost, good load balance and the like. The three-piece bogie is braked by a lever based on a brake device, and the bogie is braked by applying pressure to wheels through brake shoes and friction between the wheels and the brake shoes during braking, so that friction heat load aggravates abrasion of the wheels, and inertial faults such as heat stripping of wheel treads and uneven abrasion of the brake shoes are common. Particularly under the condition of heavy load, the inertia of the train is large, the train is stopped or decelerated within a specified distance, and the train is frequently regulated and braked, so that the abrasion process of wheels is greatly accelerated.
The disc brake is to install a brake disc on an axle, install a brake clamping device on a bogie frame or a swing bolster, compress the side surface of the brake disc through a brake pad arranged on the brake clamping device, generate friction braking force and realize braking deceleration or parking. Because the friction pair does not directly act on the tread of the wheel, the heat load and the mechanical abrasion on the surface of the wheel can be greatly reduced, and the service life of the wheel is prolonged; the design and the material selection of the brake disc are independent, so that the forced heat dissipation of the brake disc can be realized in the operation, and the friction heat capacity of the brake is improved; the brake disc is contacted with the plane of the brake pad, so that the friction factor is more stable, and the shaft braking power is high. The existing disc brake technology is mainly used for quick trucks, and the quick trucks are characterized by high running speed of the vehicles, small grouping quantity, most of axle weights in the range of 18 t-22 t, mainly adopting welding frame type steering frames, and high design, manufacturing, application and maintenance costs and great difficulty of the steering frames. The welded framework type scheme bogie adopting the disc brake technology is not suitable for loading of large-axle-weight railway trucks.
In the railway heavy-load transportation technology, the main characteristics are that the axle of the vehicle is heavy, the dead weight is low, the load is high, the number of the train groups is large, the running speed is low, the bogie structure is simple and reliable, and the manufacturing, application and maintenance costs are low. The condition of the turning wheel maintenance equipment is lacking, the maintenance labor cost is high, or the management rule adopts a single abrasion wheel, or the implementation difficulty of changing the brake shoe organization is high, and the like, so that the high requirement on the wheel abrasion of the heavy-duty truck is provided.
The traditional welding frame type bogie disc type braking scheme has high design, manufacturing, application and maintenance cost and great difficulty, and the welding frame type bogie is not suitable for heavy-load transportation. The existing three-piece heavy-duty railway wagon bogie is mainly provided with a lever brake based on a brake device, and the bogie with the structure applies pressure to wheels through brake shoes during braking, and brakes through friction between the wheels and the brake shoes, so that friction heat load aggravates abrasion of the wheels, and inertial faults such as heat stripping of wheel treads, uneven abrasion of the brake shoes and the like are common. Particularly under the condition of heavy load, the inertia of the train is large, the train is stopped or decelerated within a specified distance, and the train is frequently regulated and braked, so that the abrasion process of wheels is greatly accelerated. Although the conventional three-piece type bogie for disc braking can improve the abrasion of wheels, the three-piece type bogie has the advantages of complex design structure, high requirements on manufacturing and assembling precision, high manufacturing and maintaining cost of a brake clamping unit and a brake disc which are required to be added, and obvious reduction of economic benefit, and the dead weight of the bogie is increased.
The three-piece bogie adopting the traditional disc brake mainly utilizes a brake clamping unit and a brake disc arranged on a wheel set, and utilizes the brake clamping to clamp the side surface of the brake disc to generate friction brake. The brake clamp unit mainly utilizes similar design of mature application of a passenger car, has complex structure and high cost, is inconvenient to manufacture and overhaul, and obviously increases the dead weight of the bogie. The truck clamping unit is mainly arranged on the swing bolster, and because the total weight of the truck is greatly changed when the railway truck is empty and heavy, the truck spring suspension system is empty and the heavy truck is greatly changed, and the swing bolster of the three-piece type truck has a certain transverse offset relative to the side frame, so that the uniform friction between the brake clamping and the brake disc is not facilitated, if the truck body is lighter, the brake friction counter force generated by the brake clamping and the brake disc can also cause the swing bolster deflection to influence the running stability of the empty truck.
Disclosure of Invention
The invention aims to overcome the defects of the technology and provide the wheel axle brake type railway wagon bogie which reduces the wheel abrasion and the manufacturing, operating and maintenance costs.
In order to achieve the above purpose, the wheel axle brake type railway wagon bogie designed by the invention comprises two wheel pair assemblies, two side frame assemblies, a swing bolster assembly and a foundation brake assembly; each wheel pair comprises an axle, a pair of wheels and a pair of brake wheels, wherein the pair of wheels are symmetrically arranged on the axle through wheel seats, the pair of brake wheels are symmetrically arranged on the axle through brake wheel mounting seats, and the pair of brake wheels are positioned between the pair of wheels.
Further, the brake wheel comprises a rim, a web and a hub, wherein the web is an inclined web, and the inclined web is inclined to the wheel side, so that the rim and the hub are in a structure biased towards the wheel side along the axial direction.
Further, the web comprises an upper web and a lower web, the upper web is connected with the rim, the lower web is connected with the hub, and the lower part of the inner side surface of the upper web is fixedly linked with the upper part of the outer side surface of the lower web in a merging way.
Further, cooling ribs are uniformly distributed at the transition part between the inner side of the rim and the web plate.
Further, the foundation brake assembly comprises two groups of foundation brake units, a unit cylinder assembly and a hand brake lever; each group of basic braking units comprises a braking beam, a chain shoe ring, a braking lever and a brake shoe arranged on the braking beam, wherein one end of the chain shoe ring is connected with a fulcrum seat on the swing bolster through a round pin, the other end of the chain shoe ring is connected with the upper end of the braking lever through a round pin, and the lower end of the braking lever is connected with the braking beam; the unit cylinder assembly comprises a brake cylinder and a brake adjuster, wherein the lower end of a brake lever of one group of basic brake units in the two groups of basic brake units is connected with the brake cylinder through a round pin, and the tail end of a push rod of the brake cylinder is connected with the brake lever of the other group of basic brake units.
Further, the brake beam comprises a brake beam frame composed of a stay bar, brake beam ends and arch bars, wherein the brake beam ends are arranged at two ends of the stay bar, and a brake head is arranged on each brake beam end; the brake shoe is arranged in the cambered surface groove of the brake head at two sides of the brake beam, and is limited and prevented from falling off through a brake shoe bolt.
Further, an arc-shaped groove is formed in the end slider of the brake beam end, the depth direction of the arc-shaped groove is consistent with the thickness direction of the end slider, an arc-shaped opening of the arc-shaped groove is outwards communicated with the outside, the annular roller is pushed into the arc-shaped groove from the arc-shaped opening of the arc-shaped groove, the positioning pin penetrates through the middle hole of the annular roller until the annular roller is mounted on the end slider, the positioning pin and the arc-shaped groove are coaxially arranged, and the annular roller rotates in the arc-shaped groove around the positioning pin; the axial clearance between the annular roller and a chute wearing plate arranged in a chute formed by the side frames is 2-8 mm, and the clearance between the annular roller and the chute wearing plate is smaller than the clearance between a brake shoe and a wheel.
Further, the end slider of the brake beam end is arranged on a chute abrasion plate in a chute formed by the side frames, and the end slider is sleeved with a slider abrasion sleeve.
Further, the wheel seats at the two ends of the axle and the brake wheel mounting seat are smoothly transited through a plurality of sections of circular arcs; the diameter of the axle at the position where the brake wheel mounting seat is mounted is slightly larger than that of the axle at the position where the wheel seat is mounted.
Further, the stay bar is a hollow steel tube, and two ends of the stay bar are in interference fit with the ends of the brake beam after being processed; the arch rod is a steel rod bending piece, and two ends of the arch rod are connected with side welding seams of the end heads of the brake beams; the brake head notch clamps the flat surface of the end of the arcuate rod.
Compared with the prior art, the invention has the following advantages: the wheel axle braking type railway wagon bogie is provided with the auxiliary braking wheel, so that the grinding abrasion of the brake shoe on the wheel during the braking of the traditional railway vehicle and the influence of continuous temperature rise and fall on the material performance of the wheel during the mutual friction of the wheel and the brake shoe are eliminated, the abrasion of the wheel during the running of the vehicle is greatly reduced, the structure is simple, the dead weight is light, and the manufacturing, application and maintenance cost is reduced.
Drawings
FIG. 1 is a schematic view of the axle brake type railway freight car truck of the present invention;
FIG. 2 is a schematic view of the wheel set assembly of FIG. 1;
FIG. 3 is a schematic view of the integral brake wheel of FIG. 2;
FIG. 4 is a schematic side view of FIG. 3;
FIG. 5 is a schematic view of the split brake wheel of FIG. 2;
FIG. 6 is a side view schematic of FIG. 5;
FIG. 7 is a schematic view of the foundation brake composition of FIG. 1;
FIG. 8 is a schematic view of the brake beam structure of FIG. 7;
fig. 9 is a schematic view of the brake beam head configuration of fig. 8.
Wherein: wheel set 1, wheel 1.1, axle 1.2, brake wheel 1.3, rim 1.3a, web 1.3b, hub 1.3c, cooling rib 1.3d, upper web 1.3e, lower web 1.3f;
the side frame is composed of 2, the chute wearing plate is 2.1;
the swing bolster is composed of a swing bolster component 3 and a fulcrum seat 3.1;
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
The wheel axle brake type railway wagon bogie shown in fig. 1 is suitable for a three-piece bogie consisting of two side frames and a swing bolster, and is also suitable for an integral frame type bogie.
The wheel axle brake type railway wagon bogie comprises two wheel pair assemblies 1, two side frame assemblies 2, a swing bolster assembly 3 and a foundation brake assembly 4. As shown in fig. 2, each wheel set assembly 1 includes an axle 1.2, a pair of wheels 1.1 and a pair of brake wheels 1.3, the pair of wheels 1.1 are symmetrically mounted on the axle 1.2 through wheel-seat interference tight fit, the pair of brake wheels 1.3 are symmetrically mounted on the axle 1.2 through brake-wheel-mounting-seat interference tight fit, and the pair of brake wheels 1.3 are located between the pair of wheels 1.1. Meanwhile, the wheel seats at the two ends of the axle 1.2 and the brake wheel mounting seats are smoothly transited through a plurality of sections of circular arcs, and the diameter of the axle at the position where the brake wheel mounting seats are mounted is slightly larger than that of the axle at the position where the wheel seats are mounted, so that the wheels are mounted conveniently.
As shown in fig. 3 and 4, the brake wheel 1.3 is of a unitary structure and comprises a rim 1.3a, a web plate 1.3b and a hub 1.3c, wherein the web plate 1.3b is an inclined web plate, and the inclined web plate is inclined to the wheel 1.1 side, so that the rim 1.3a and the hub 1.3c are of a structure which is axially biased towards the wheel 1.1 side; cooling ribs 1.3d are uniformly distributed at the transition part between the inner side of the rim 1.3a and the web plate 1.3b, so that the structural strength of the rim is enhanced.
As shown in fig. 5 and 6, the brake wheel may also be of a split combined structure, wherein the web plate comprises an upper web plate 1.3e and a lower web plate 1.3f, the upper web plate 1.3e is connected with the rim 1.3a, the lower web plate 1.3f is connected with the hub 1.3c, the lower part of the inner side surface of the upper web plate 1.3e is combined with the upper part of the outer side surface of the lower web plate 1.3f, and the upper web plate and the hub are fixedly connected through bolts, so that the rim and the hub are of a structure biased towards the wheel side along the axial direction; after the rim is worn to the limit, only the rim with the upper web plate needs to be replaced, the hub does not need to be disassembled, and the maintenance cost is reduced.
The integral brake wheel is convenient to process and install; the combined brake wheel has higher processing and assembling precision, but is simple and convenient to maintain and replace and low in maintenance cost. The wheel rim and the wheel hub of the brake wheel formed by the wheel pair are designed to be axially outwards offset, the wheel rim and the wheel hub of the brake wheel with the wide track gauge can be axially symmetrical, the inner space of the wheel pair can be fully utilized, the width of the brake wheel and the inner distance between the two brake wheels are increased, so that the friction area is increased, and the safety gap between the axial direction and the vehicle body part is kept.
As shown in fig. 7, the foundation brake assembly 4 includes two sets of foundation brake units, one unit cylinder assembly 4.3 and a hand brake lever 4.5. Each group of basic braking units comprises a braking beam 4.4, a chain shoe ring 4.1, a braking lever 4.2 and a brake shoe 4.6 arranged on the braking beam 4.4, one end of the chain shoe ring 4.1 is connected with a fulcrum seat 3.1 on the swing bolster component 3 through a round pin, the other end of the chain shoe ring 4.1 is connected with the upper end of the braking lever 4.2 through a round pin, and the lower end of the braking lever 4.2 is connected with the braking beam 4.4. Referring to fig. 8, the brake beam 4.4 includes a brake beam frame composed of a stay bar 4.4a, brake beam ends 4.4b and a bow bar 4.4c mounted at both ends of the stay bar 4.4a, and a brake head 4.4d mounted on each brake beam end 4.4b, one end of the bow bar 4.4c is mounted on one of the brake beam ends 4.4b, the other end of the bow bar 4.4c is mounted on the other brake beam end 4.4b, and a strut 4.4e is supported between the middle portion of the stay bar 4.4a and the bent portion of the bow bar 4.4 c; the brake shoes 4.6 are arranged in cambered surface grooves of brake heads 4.4d on two sides of a brake beam 4.4, and are limited and prevented from falling through brake shoe bolts 4.7.
The unit cylinder assembly 4.3 comprises a brake cylinder and a brake adjuster, wherein the lower end of a brake lever 4.2 of one group of basic brake units in the two groups of basic brake units is connected with the brake cylinder through a round pin, and the tail end of a push rod of the brake cylinder is connected with the brake lever 4.2 of the other group of basic brake units. Only one set of unit brake cylinder assembly is needed, the braking force output by the brake cylinder is amplified through the brake lever and is transmitted to two brake beams, and then the braking force is averagely transmitted to brake shoes arranged on the brake beams, so that the radial pressure on the rim of a brake wheel is realized, and the braking moment formed by the wheel pair is realized in the rolling operation process of the wheel pair, so that the braking deceleration or parking function is achieved. The brake adjuster adjusts the stroke of the brake cylinder according to the abrasion of the brake shoe and the brake wheel, and keeps the normal braking action. The hand brake lever 4.5 may fulfil the parking brake function.
The section of the end slider 4.4f of the brake beam end 4.4b shown in fig. 9 is rectangular, the arc-shaped groove 4.4g is formed in the end slider 4.4f, the depth direction of the arc-shaped groove 4.4g is consistent with the thickness direction of the end slider 4.4f, the arc-shaped opening of the arc-shaped groove 4.4g is outwards communicated with the outside, the annular roller 4.4h is pushed into the arc-shaped groove 4.4g from the arc-shaped opening of the arc-shaped groove 4.4g, the positioning pin 4.4j passes through the middle hole of the annular roller 4.4h until the positioning pin 4.4j is mounted on the end slider 4.4f, the positioning pin 4.4j and the arc-shaped groove 4.4g are coaxially arranged, and the annular roller 4.4g rotates around the positioning pin 4.4j in the arc-shaped groove 4.4 g; meanwhile, the axial clearance between the annular roller 4.4h and a chute wearing plate 2.1 arranged in a chute of the side frame assembly 2 is 2-8 mm. The end slider 4.4f of the brake beam end 4.4b is arranged on the chute wearing plate 2.1 in the chute of the side frame component 2, when two brakes Liang Bu are parallel or the brake beam axially deviates to one side, the annular roller 4.4h is contacted with the chute wearing plate 2.1, and the annular roller 4.4g rotates around the locating pin 4.4j in the end slider 4.4h, so that when the braking is released, even if the annular roller 4.4h is contacted with the chute wearing plate 2.1, the blocking cannot occur, the limit and the function of the brake beam can be realized, the braking efficiency is improved, and the braking and poor relief are reduced. In this embodiment, the end slider 4.4h is sleeved with a slider wear sleeve 4.4k, and the positioning pin 4.4j also has the positioning function of the slider wear sleeve 4.4k.
The stay bar 4.4a is a hollow steel tube, and the two ends of the stay bar are in interference fit with the brake beam end heads 4.4b after being processed, so that the interference press-fitting reliability of the stay bar can be improved. The bow-shaped rod 4.4c is a steel bar bending piece, and two ends of the bow-shaped rod are connected with the side welding seams of the brake beam end head 4.4 b. After the bow-shaped rod and the brake beam end are assembled, the 4.4d notch of the brake head clamps the straight surface of the 4.4c end of the bow-shaped rod, then a pin hole is drilled, and the brake head is connected with the brake beam end by adopting two bolts or rivets, so that the whole stress of the connecting section of the bow-shaped rod and the brake beam end in the application can be avoided, only the weld joint is prevented from being loaded, and the connection reliability of the bow-shaped rod and the brake beam end is improved. Simplifying the assembly equipment of the brake beam, improving the production efficiency and reducing the production cost.
The auxiliary brake wheels are arranged on the inner sides of the two wheels, so that the grinding abrasion of the brake shoes on the wheels during the braking of the traditional railway vehicle and the influence of continuous temperature rise and drop on the material performance of the wheels during the mutual friction between the wheels and the brake shoes are eliminated. In addition, the radial outer surface of the brake wheel and a brake shoe in the basic braking device generate friction braking under the action of braking force, and heat generated by the friction between the surface of the brake wheel and the brake shoe dissipates heat passively through cooling ribs of the brake wheel, so that the temperature of a friction pair is not too high, the performance of a friction material is stable, and the service life of the friction material is prolonged.
Compared with the traditional lever type wheel shoe brake, the axle wheel brake has the advantages of low wheel abrasion, simple structural configuration, light dead weight, obvious low manufacturing and maintenance cost and good economic benefit.
The slide block section of the brake beam end adopts a rectangular structure, so that the low head eccentric wear of a brake shoe can be reduced, the annular roller is arranged in the end slide block, the plane contact friction between the brake beam end and the chute abrasion plate is converted into the rolling of the brake beam roller in the chute, the blocking failure of the brake beam end in the chute when the brake beam and an axle are not parallel is reduced, meanwhile, compared with the traditional brake beam, the axial clearance between the annular roller and the side frame chute abrasion plate can be reduced, the limiting function of the brake beam on the axial displacement of the wheel is realized, and the wheel rim transitional wear of the traditional wheel shoe braking mode is improved.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present invention.
Claims (5)
1. A wheel axle brake type railway wagon bogie comprises two wheel pair assemblies (1), two side frame assemblies (2), a swing bolster assembly (3) and a foundation brake assembly (4); the method is characterized in that: each wheel set assembly (1) comprises an axle (1.2), a pair of wheels (1.1) and a pair of brake wheels (1.3), wherein the pair of wheels (1.1) are symmetrically arranged on the axle (1.2) through wheel seats, the pair of brake wheels (1.3) are symmetrically arranged on the axle (1.2) through brake wheel mounting seats, and the pair of brake wheels (1.3) are positioned between the pair of wheels (1.1);
the brake wheel comprises a rim (1.3 a), a web plate (1.3 b) and a wheel hub (1.3 c), wherein the web plate (1.3 b) is an inclined web plate, and the inclined web plate inclines towards the wheel (1.1) side, so that the rim (1.3 a) and the wheel hub (1.3 c) are of a structure which is axially biased towards the wheel (1.1) side;
the foundation brake assembly (4) comprises two groups of foundation brake units, a unit cylinder assembly (4.3) and a hand brake lever (4.5); each group of basic braking units comprises a braking beam (4.4), a chain shoe ring (4.1), a braking lever (4.2) and a brake shoe (4.6) arranged on the braking beam (4.4), one end of the chain shoe ring (4.1) is connected with a fulcrum seat (3.1) on the swing bolster assembly (3) through a round pin, the other end of the chain shoe ring (4.1) is connected with the upper end of the braking lever (4.2) through a round pin, and the lower end of the braking lever (4.2) is connected with the braking beam (4.4); the unit cylinder assembly (4.3) comprises a brake cylinder and a brake adjuster, the lower end of a brake lever (4.2) of one group of basic brake units in the two groups of basic brake units is connected with the brake cylinder through a round pin, and the tail end of a push rod of the brake cylinder is connected with the brake lever (4.2) of the other group of basic brake units; the brake beam (4.4) comprises a brake beam frame composed of a stay bar (4.4 a), brake beam ends (4.4 b) and arch bars (4.4 c) which are arranged at two ends of the stay bar (4.4 a), and a brake head (4.4 d) which is arranged on each brake beam end (4.4 b), wherein one end of each arch bar (4.4 c) is arranged on one brake beam end (4.4 b), the other end of each arch bar (4.4 c) is arranged on the other brake beam end (4.4 b), and a support column (4.4 e) is supported between the middle part of the stay bar (4.4 a) and the bending part of each arch bar (4.4 c); the brake shoes (4.6) are arranged in cambered surface grooves of brake heads (4.4 d) at two sides of the brake beam (4.4) and are limited and prevented from falling through brake shoe bolts (4.7); an arc groove (4.4 g) is formed in an end slider (4.4 f) of the brake beam end (4.4 b), the depth direction of the arc groove (4.4 g) is consistent with the thickness direction of the end slider (4.4 f), an arc opening of the arc groove (4.4 g) is outwards communicated with the outside, an annular roller (4.4 h) is pushed into the arc groove (4.4 g) from the arc opening of the arc groove (4.4 g), a positioning pin (4.4 j) penetrates through a middle hole of the annular roller (4.4 h) until the positioning pin is mounted on the end slider (4.4 f), the positioning pin (4.4 j) and the arc groove (4.4 g) are coaxially arranged, and the annular roller (4.4 g) rotates around the positioning pin (4.4 j) in the arc groove (4.4 g); the axial clearance between the annular roller (4.4 h) and a chute wearing plate (2.1) arranged in a chute of the side frame component (2) is 2-8 mm, and the clearance between the annular roller (4.4 h) and the chute wearing plate (2.1) is smaller than the clearance between a brake shoe (4.6) and a wheel (1.1); the end sliding block (4.4 f) of the brake beam end (4.4 b) is arranged on a chute abrasion plate (2.1) in a chute of the side frame component (2), and the end sliding block (4.4 h) is sleeved with a sliding block abrasion sleeve (4.4 k).
2. The axle-brake railway freight car truck of claim 1, wherein: the web comprises an upper web (1.3 e) and a lower web (1.3 f), wherein the upper web (1.3 e) is connected with a rim (1.3 a), the lower web (1.3 f) is connected with a hub (1.3 c), and the lower part of the inner side surface of the upper web (1.3 e) is fixedly linked with the upper part of the outer side surface of the lower web (1.3 f) in a merging way.
3. The axle-brake railway freight car truck according to claim 2, wherein: cooling ribs (1.3 d) are uniformly distributed at the transition part between the inner side of the rim (1.3 a) and the web plate (1.3 b).
4. The axle-brake railway freight car truck of claim 1, wherein: the wheel seats at the two ends of the axle (1.2) and the brake wheel mounting seat are smoothly transited through a plurality of sections of circular arcs; the diameter of the axle at the position where the brake wheel mounting seat is mounted is slightly larger than that of the axle at the position where the wheel seat is mounted.
5. The axle-brake railway freight car truck of claim 1, wherein: the stay bar (4.4 a) is a hollow steel tube, and two ends of the stay bar are in interference fit with the brake beam end heads (4.4 b) after being processed; the arched rod (4.4 c) is a steel bar bending piece, and two ends of the arched rod are connected with side welding seams of the end heads (4.4 b) of the brake beam; the notch of the brake head (4.4 d) clamps the flat end surface of the bow-shaped rod (4.4 c).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111367966.5A CN114104027B (en) | 2021-11-18 | 2021-11-18 | Axle-brake railway wagon bogie |
| PCT/CN2022/105663 WO2023087752A1 (en) | 2021-11-18 | 2022-07-14 | Wheel-axle-brake-type railway wagon bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111367966.5A CN114104027B (en) | 2021-11-18 | 2021-11-18 | Axle-brake railway wagon bogie |
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| Publication Number | Publication Date |
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| CN114104027A CN114104027A (en) | 2022-03-01 |
| CN114104027B true CN114104027B (en) | 2023-04-25 |
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| CN114104027B (en) * | 2021-11-18 | 2023-04-25 | 中车长江运输设备集团有限公司 | Axle-brake railway wagon bogie |
| CN118072584B (en) * | 2024-04-17 | 2024-06-21 | 四川新科电子技术工程有限责任公司 | Rail transit train simulation vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4235807A1 (en) * | 1992-10-23 | 1993-11-11 | Talbot Waggonfab | Block brakes for rail vehicle with at least respectively one brake block - acting on running surface of each wheel of set of wheels which is operable by brake cylinder controlled by at least one control unit across central brake rod. |
| CN2224136Y (en) * | 1995-03-20 | 1996-04-10 | 齐齐哈尔车辆厂 | Basic braking device for steering bogie of railway goods train |
| CN2649443Y (en) * | 2003-09-29 | 2004-10-20 | 于学明 | Special bogie |
| CN102501883A (en) * | 2011-11-21 | 2012-06-20 | 南车眉山车辆有限公司 | Steering bogie brake device with flexible fulcrum |
| CN203543986U (en) * | 2013-10-14 | 2014-04-16 | 南车长江车辆有限公司 | Bogie of railway wagon |
| CN103523049B (en) * | 2013-10-14 | 2016-04-13 | 南车长江车辆有限公司 | Railway goods train bogie suspension type foundation brake rigging |
| CN112026823A (en) * | 2020-08-26 | 2020-12-04 | 中车长江车辆有限公司 | 150t depressed center flat car and long and large goods car marshalling |
| CN112590849B (en) * | 2020-12-07 | 2024-06-18 | 中车长江车辆有限公司 | Railway wagon bogie braking device and bogie |
| CN114104027B (en) * | 2021-11-18 | 2023-04-25 | 中车长江运输设备集团有限公司 | Axle-brake railway wagon bogie |
-
2021
- 2021-11-18 CN CN202111367966.5A patent/CN114104027B/en active Active
-
2022
- 2022-07-14 WO PCT/CN2022/105663 patent/WO2023087752A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023087752A1 (en) | 2023-05-25 |
| CN114104027A (en) | 2022-03-01 |
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