background technology:
Railway goods train bogie refers to a kind of running gear of railway truck.Divide by structural shape at present, mainly contain cast steel three-piece bogie and framework type bogie truck two kinds.Wherein, simply, all carry the advantages such as performance is good because research railway goods train bogie has structure, be able to widely apply on railway truck.This bogie truck to, the composition such as bearing, adapter, side bearing, foundation brake rigging, plays the effect of supporting body, guiding and braking primarily of side frame, bolster, shock attenuation unit, wheel.But, in tradition three-major-items roller bearing adapter stabilizer bar, the connection of side frame and bolster only realizes by shock attenuation unit, thus easily produces the relative motion in horizontal surface between its side frames, the serpentine locomotion that aggravation wheel is right, thus affect safety and the riding quality of vehicle operating.
In order to overcome this shortcoming, a large amount of production is improved traditional Bogie Designs with the improved type three-piece bogie used at present, increases coupling mechanism, suppress the relative motion of side frames in horizontal surface between side frames.The structural shape that current coupling mechanism generally adopts is: between side frames, increase by two cross connection bars, connected by elastic panel nodes with side frames, side frames is made to form a four-bar linkage in horizontal surface together with two connecting rods, enhance the contact between side frames, good effect is achieved to the safety in operation and riding quality improving bogie truck.The cross link coupling method of current extensive application mainly contains two kinds:
1) interfixed by connecting device between two cross link;
2) between two cross link, nothing is contacted directly.
But being found by the operation of a period of time, there are some problems in current coupling method.Subject matter and producing cause as follows:
The subject matter that the first coupling method exists and producing cause are: this structure is used by a large amount of entrucking in current railway truck, in utilization process, find that a large amount of cross link produces structural fatigue crackle.And once endurance crack cause pipe link rupture after, bogie truck run snakelike critical speed can sharply decline, bring high risks to the safe in operation of vehicle.
Because four-bar linkage itself exists a freedom of motion, do not considering under the prerequisite that other external constraint affects, one of them side frame can produce relative rotation to another one side frame, makes the rectangular configuration under initial condition become trapezium structure, thus the homophase causing wheel right is snakelike.By increase between two cross link connecting device fixing after, side frames forms a stable structure together with two cross link, from kinematic angle, relatively rotating between side frames can be eliminated by this mechanism, makes bogie truck have good dynamic performance.But increase anchor fitting between two connecting rods after, change the strained condition of two connecting rods, side frame longitudinally (track alignment) moves the additional bending moment produced mutually, can be delivered on crossbar, thus cause rod member or anchor fitting fatigue failure.
The subject matter that the second side frame coupling method exists is: this coupling method, contacts directly between two connecting rods without any, and connecting rod itself only bears the pressure effect that side frame transmits, and is thus easy to realize good structural fatigue reliability.But as mentioned above, but theoretically, there is a freedom of motion in four-bar linkage itself.After being subject to extraneous excitation, between side frame, mutual rotation will be produced, thus affect the positive capability of bogie truck, cause the snakelike critical speed of bogie truck to decline.Therefore, be necessary to adopt a kind of better side frame coupling method to solve the relative position control problem of truck side frame; Structure itself answers reasonable stress simultaneously, has excellent fatigue property.
Do not find that there is the patent literature constructed with the present invention by patent retrieval, to have the patent of certain relation to mainly contain following with the present invention:
1, patent No. CN201420336888.1 and the patent No. are announced for CN201410283231.8, name is called " a kind of railway goods train bogie and wherein cross-braced device ", by being fixed device to reach the rotation eliminated between side frames at two crossbar overlapping parts, thus stroke rock-steady structure.But obviously, produce when mutually rotating between side frame, this position will produce very large additional bending moment, thus causes the fatigue failure of crossbar.
2, patent No. CN200910017141.3 announces, name is called " a kind of crossed rod mechanism for rail wagon bogie ", the motion eliminated between side frames is reached by a six-bar mechanism, but when the power produced between side frames is transmitted by two parallel bars, still additional bending moment can be produced, affect its strength at repeated alternation, the more complicated and structure seems.
3, the patent No. is CN200920029942.7, and the patent of invention that name is called " a kind of Novel crossing bar type railway freight car bogie ", which discloses a kind of Novel crossing bar type railway freight car bogie, comprises side frame, crossbar device and axle box rubber packing.Inside side frame, column is provided with the cross bar mount pad of crossbar device, and mount pad and side frame integrated are cast out, and welding manner also can be adopted to be connected with side frame column; Crossbar device is made up of two parallel cross bar, two crossbars and eight articulation pieces, two crossbars are connected with two cross bars by four articulation pieces, whole crossbar device is connected with the cross bar mount pad of four in side frames by four articulation pieces, therefore this patent set forth the crossed rod type railway goods train bogie being still a kind of six bar structures, still there is the problem described in a upper patent.
So although these patents above-mentioned all relate to the crossbar device of railway goods train bogie, it is also proposed the improvement that some are structural, but all fundamentally do not change existing crossbar device, all still there is the deficiency of foregoing 2 aspects, therefore still need to be improved further.
Summary of the invention
The object of the invention is to for the deficiency existing for existing railway wagon bogie cross bar device, a kind of new railway goods train bogie and side frame cross rod mechanism coupling method and device are proposed, this railway goods train bogie and side frame cross rod mechanism coupling method and device effectively can control the relative position between bogie truck side frames, improve the critical speed that bogie truck runs, improve bogie truck riding quality, and cross link not easily produces structural fatigue crackle.
In order to reach this purpose, the invention provides a kind of railway goods train bogie and side frame cross rod mechanism coupling method, eliminating the relative motion between side frames in horizontal surface by 5 connecting rod mechanisms, thus reaching a rock-steady structure.
Further, 5 described connecting rod mechanisms comprise two bars that three connecting rods and side frames are formed, by being connected with three pipe link two ends between side frames, in horizontal surface, forming a five-bar mechanism, eliminating the relative motion between side frames in horizontal surface by five-bar mechanism combination.
Further, 5 described connecting rods are on each side frame, be provided with 2-3 supporting seat, each supporting seat is fixed with one or two pipe links, the two ends of pipe link are set with resilient sleeve, two side frames are linked together by resilient sleeve and three connecting rods, form a five-bar mechanism, combined by five-bar mechanism and effectively control two side frame relative motions.
Further, three described connecting rods are the strut and tie of independent action, be not subject to the effect of additional bending moment, contact directly each other between bar and bar without any in mechanism, only bear the pressure that point of attachment transmits.
Further, three described connecting rods are located in the same horizontal plane, to give full play to five bar coupling mechanisms to the control ability of side frame.
Further, three described connecting rods are connected the mode combined for cross arrangement or parallel arrangement and are connected side frames with side frames, by the formation five-bar mechanism that is connected of three connecting rod assemblys and side frames.
A kind of a kind of railway goods train bogie and side frame cross rod mechanism realizing above-mentioned railway goods train bogie and side frame cross rod mechanism coupling method, comprise two side frames, the pipe link for preventing the relative motion between side frames in horizontal surface is provided with between two side frames, its feature is, described for preventing the pipe link of the relative motion between side frames in horizontal surface from being 5 connecting rod mechanisms.
Further, 5 described connecting rod mechanisms comprise two bars that three connecting rods and side frames are formed, and by being connected with three pipe link two ends between side frames, in horizontal surface, form a five-bar mechanism.
Further, 5 described connecting rods are on each side frame, be provided with 2-3 supporting seat, each supporting seat is fixed with a pipe link, the two ends of pipe link are set with resilient sleeve, two side frames are linked together by resilient sleeve and three connecting rods, form a five-bar mechanism.
Further, three described connecting rods are the strut and tie of independent action, be not subject to the effect of additional bending moment, contact directly each other between bar and bar without any in mechanism, only bear the pressure that point of attachment transmits.
Further, three described connecting rods are located in the same horizontal plane, to give full play to five bar coupling mechanisms to the control ability of side frame.
Further, three described connecting rods are connected the mode combined for cross arrangement or parallel arrangement and are connected side frames with side frames, by the formation five-bar mechanism that is connected of three connecting rod assemblys and side frames.
The invention has the advantages that:
The relative motion that the present invention takes 5 connecting rod mechanisms to prevent between side frames in horizontal surface, mainly contains following characteristics:
1, on original 4 bar architecture basics, increase by 1 auxiliary connecting rod, form 5 linkages with auxiliary constraint, original crossbar is in free restrained condition simultaneously, so both can effectively prevent crossbar from passing through the middle fixing additional bending moment brought, avoid crossbar to be in operation because causing the phenomenon ftractureed by moment of flexure, can avoid again 4 bar structures mutual rotation between unavoidable side frame.
2, on the basis of traditional three-piece bogie, have employed five-bar mechanism side frame control principle and mechanism, overcome cross link four bar used at present and connect the stability of bogie truck and the shortcoming of structural stability difference, effectively improve the structural fatigue reliability of vehicle, the critical speed of vehicle operating, reduce wheel track dynamic force, thus reach improve lorry running velocity and riding quality, reduce the object using maintenance cost.
Detailed description of the invention
The present invention is set forth further below in conjunction with the drawings and specific embodiments.
Embodiment one
Can be found out by attached Fig. 1 and 2, the present invention relates to a kind of railway goods train bogie and side frame cross rod mechanism, comprise two side frames 1, the pipe link 2 for preventing the relative motion between side frames in horizontal surface is provided with between two side frames 1, its feature is, described for preventing the pipe link of the relative motion between side frames in horizontal surface from being 5 connecting rod mechanisms.
5 described connecting rod mechanisms comprise two bars that three connecting rods and side frames are formed, and by being connected with three pipe link two ends between side frames, in horizontal surface, form a five-bar mechanism.
5 described connecting rods are on each side frame, be provided with 3 supporting seats 6,7 and 8, and this supporting seat, according to scantling of structure feature, lays respectively at outside and the end of side frame.Each supporting seat is fixed with a pipe link, and head rod 4 and the second pipe link 5 cross connection are on the outside-supporting seat of side frame 1, the 3rd pipe link 3 and side frames be vertically connected on be arranged on side frame 1 end supporting seat on; The two ends of pipe link are set with resilient sleeve, and resilient sleeve adopts small―gap suture to coordinate with adapter shaft radial direction, and is axially connected by gland, spring washer, nut, spring cotter.Adopt self locking taper to be connected between resilient sleeve with pipe link, and use circlip axial restraint, two side frames are linked together by resilient sleeve and three connecting rods, form a five-bar mechanism, effectively control its relative motion.
After adopting five-bar mechanism, stable, failure-free diamond resistant rigidity between bogie truck side frames, can be obtained.Diamond resistant rigidity enough, between stable side frames is the precondition that bogie truck obtains higher critical velocity and good curving performance.
Embodiment two
The structure of embodiment two is the same with embodiment one groundwork, and just the arrangement of 3 connecting rods is different, as shown in Figure 3.A kind of railway goods train bogie and side frame cross rod mechanism, comprise two side frames 201, the pipe link for preventing the relative motion between side frames in horizontal surface is provided with between two side frames 201, its feature is, described for preventing the pipe link of the relative motion between side frames in horizontal surface from being 5 connecting rod mechanisms.
5 described connecting rod mechanisms comprise two bars that three connecting rods and side frames are formed, and by being connected with three pipe link two ends between side frames, in horizontal surface, form a five-bar mechanism.
5 described connecting rods are on each side frame, be provided with 2 supporting seats 206 and 207, and this supporting seat, according to scantling of structure feature, lays respectively at the inner side of side frame 201.A supporting seat 207 is fixed with a pipe link wherein, and another supporting seat 206 is fixed with two pipe links, wherein head rod 203 forms the original four-bar linkage structure that intersects with the second pipe link 204, the vertical side frames of third connecting rod 205 connects, be enclosed within a supporting seat of side frame with head rod and the second pipe link one first respectively, form one " again " sidewards 5 bar linkage structure, and the two ends of each root pipe link are set with resilient sleeve, two side frames are linked together by resilient sleeve and three connecting rods.
Three described connecting rods are the strut and tie of independent action, the effect of additional bending moment is not subject in mechanism, contact directly without any each other between bar and bar, only bear the pressure that point of attachment transmits, be combined to form the restriction to the relative motion between side frames in horizontal surface by the vertical support of head rod 203 and the second pipe link 204 skewed horizontal load and the 3rd pipe link 205.
Described head rod 203 and the second pipe link 204 are located in the same horizontal plane, and third connecting rod tight 205 is attached to above head rod and the second pipe link and installs, to give full play to five bar coupling mechanisms to the control ability of side frame.
Embodiment three
The structure of embodiment three is the same with embodiment one groundwork, just the arrangement of 3 connecting rods is different, as shown in Figure 4, a kind of railway goods train bogie and side frame cross rod mechanism, comprise two side frames 301, between two side frames, be provided with the pipe link for preventing the relative motion between side frames in horizontal surface, its feature is, described for preventing the pipe link of the relative motion between side frames in horizontal surface from being 5 connecting rod mechanisms.
5 described connecting rod mechanisms comprise two bars that three connecting rods and side frames are formed, and by being connected with three pipe link two ends between side frames, in horizontal surface, form a five-bar mechanism.
5 described connecting rods are on each side frame, be provided with 3 supporting seats 306,307 and 308, and this supporting seat, according to scantling of structure feature, lays respectively at inner side and the end of side frame 301.Two supporting seats 306 and 307 that wherein first connecting rod 303 is connected with second connecting rod 304 are positioned at the inner side of side frame 301; The supporting seat 308 of third connecting rod 305 is positioned at the end of side frame 301.Each supporting seat is fixed with a pipe link, the two ends of pipe link are set with resilient sleeve, two side frames are linked together by resilient sleeve and three connecting rods, form a five-bar mechanism.
Three described connecting rods are the strut and tie of independent action, be not subject to the effect of additional bending moment, contact directly each other between bar and bar without any in mechanism, only bear the pressure that point of attachment transmits.
Three described connecting rods are located in the same horizontal plane, to give full play to five bar coupling mechanisms to the control ability of side frame.
Embodiment four
The structure of embodiment four is the same with embodiment one groundwork, just the arrangement of 3 connecting rods is different, as shown in Figure 5, a kind of railway goods train bogie and side frame cross rod mechanism, comprise two side frames 401, between two side frames, be provided with the pipe link for preventing the relative motion between side frames in horizontal surface, its feature is, described for preventing the pipe link of the relative motion between side frames in horizontal surface from being 5 connecting rod mechanisms.
5 described connecting rod mechanisms comprise two bars that three connecting rods and side frames are formed, and by being connected with three pipe link two ends between side frames, in horizontal surface, form a five-bar mechanism.
5 described connecting rods are provided with 2 supporting seats 406 and 407 on a side frame, another side frame is provided with 3 supporting seats 408,409 and 410; Wherein, be provided with on the side frame of 2 supporting seats, a supporting seat 406 is arranged on inside side frame, another supporting seat 407 is arranged on the termination of side frame 401, be provided with on the side frame of 3 supporting seats, two supporting seats 408 and 409 are arranged on inside side frame, and another supporting seat 410 is also arranged on the termination of side frame, and relative with another side frame; 3 pipe links, head rod 403 is vertically connected on the supporting seat that is positioned at inside side frames, second pipe link 404 is while be connected on another medial support seat of the side frame being provided with 3 supporting seats, other end is connected on the medial support seat of the side frame being provided with 2 supporting seats together with head rod, and head rod and the second pipe link are combined to form a triangle connection mode; 3rd pipe link 405 be connected to perpendicular to side frames be arranged on side frames termination supporting seat on, be combined to form 5 bar linkage structures of similar " N " font by 3 pipe links.
Three described connecting rods are the strut and tie of independent action, be not subject to the effect of additional bending moment, contact directly each other between bar and bar without any in mechanism, only bear the pressure that point of attachment transmits.
Three described connecting rods are located in the same horizontal plane, to give full play to five bar coupling mechanisms to the control ability of side frame.
Embodiment five
The structure of embodiment five is the same with embodiment four groundwork, just the arrangement of 3 connecting rods is different, as shown in Figure 6, a kind of railway goods train bogie and side frame cross rod mechanism, comprise two side frames 501, between two side frames, be provided with the pipe link for preventing the relative motion between side frames in horizontal surface, its feature is, described for preventing the pipe link of the relative motion between side frames in horizontal surface from being 5 connecting rod mechanisms.
5 described connecting rod mechanisms comprise two bars that three connecting rods and side frames are formed, and by being connected with three pipe link two ends between side frames, in horizontal surface, form a five-bar mechanism.
5 described connecting rods are on each side frame, be provided with 2 supporting seats 506,507,508 and 509, and supporting seat, according to scantling of structure feature, lays respectively at the inner side of side frame.A supporting seat is fixed with a pipe link wherein, and another supporting seat is fixed with two pipe links, wherein, head rod 503 and the second pipe link 505 are vertically connected on the supporting seat that is positioned at inside side frames respectively, form a parallelogram sturcutre, 3rd pipe link 504 is oblique to be connected on the supporting seat at two diagonal angles inside side frames, is combined to form 5 bar linkage structures of similar " N " font by 3 pipe links.
Three described connecting rods are the strut and tie of independent action, be not subject to the effect of additional bending moment, contact directly each other between bar and bar without any in mechanism, only bear the pressure that point of attachment transmits.
Three described connecting rods are located in the same horizontal plane, to give full play to five bar coupling mechanisms to the control ability of side frame.
Above-mentioned listed embodiment, just carries out clear, complete description to technical scheme of the present invention by reference to the accompanying drawings; Obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Can be found out by above-described embodiment, the invention still further relates to a kind of railway goods train bogie and side frame cross rod mechanism coupling method, eliminate the relative motion between side frames in horizontal surface by 5 connecting rod mechanisms, thus reach a rock-steady structure.
Further, 5 described connecting rod mechanisms comprise two bars that three connecting rods and side frames are formed, by being connected with three pipe link two ends between side frames, in horizontal surface, forming a five-bar mechanism, eliminating the relative motion between side frames in horizontal surface by five-bar mechanism combination.
Further, 5 described connecting rods are on each side frame, be provided with 2-3 supporting seat, each supporting seat is fixed with a pipe link, the two ends of pipe link are set with resilient sleeve, two side frames are linked together by resilient sleeve and three connecting rods, form a five-bar mechanism, combined by five-bar mechanism and effectively control two side frame relative motions.
Further, three described connecting rods are the strut and tie of independent action, be not subject to the effect of additional bending moment, contact directly each other between bar and bar without any in mechanism, only bear the pressure that point of attachment transmits.
Further, three described connecting rods are located in the same horizontal plane, to give full play to five bar coupling mechanisms to the control ability of side frame.
Further, three described connecting rods are connected the mode combined for cross arrangement or parallel arrangement and are connected side frames with side frames, by the formation five-bar mechanism that is connected of three connecting rod assemblys and side frames.
The invention has the advantages that:
The relative motion that the present invention takes 5 connecting rod mechanisms to prevent between side frames in horizontal surface, mainly contains following characteristics:
1, on original 4 bar architecture basics, increase by 1 auxiliary connecting rod, form 5 linkages with auxiliary constraint, original crossbar is in free restrained condition simultaneously, so both can effectively prevent crossbar from passing through the middle fixing additional bending moment brought, avoid crossbar to be in operation because causing the phenomenon ftractureed by moment of flexure two, 4 bar structures can be avoided again completely freely to retrain between brought side frame and produce rotation mutually.
2, on the basis of traditional three-piece bogie, have employed five-bar mechanism side frame control principle and mechanism, overcome cross link four bar used at present and connect the stability of bogie truck and the shortcoming of structural stability difference, effectively improve the structural fatigue reliability of vehicle, the critical speed of vehicle operating, reduce wheel track dynamic force, thus reach improve lorry running velocity and riding quality, reduce the object using maintenance cost.