Background technology
Along with the requirement of railway speed increase, 32 meter T-shaped concrete-bridges (logical bridge 2201 types) are widely used, and its construction equipment needed thereby of building bridge is a railway bridge erecting machine.Existing railway bridge erecting machine vehicle structure still prolongs the technology with the seventies in last century, it has the following disadvantages: the one, and end of carbody underframe drops on the 5D axle welded frame formula bogie truck, and Er Weiduan drops on two 2D axle cast steel three-major-items formula bogie trucks by one group of little underframe.Because of 5D axle bogie framework span is big, the middle part wheel causes bigger transverse force to producing bigger side-play amount when vehicle passes through curve; The 2nd, 5D axle steer frame end car body stable and adopt the structural shape of side bearing loading when keeping operation, make this railway bridge erecting machine vehicle dynamics poor performance, curve negotiation ability is low, and overall trip speed is low, the requirement of incompatibility railway speed increase, and the phenomenon that slides down often appears during by little curve; The 3rd, the 32 meter T-shaped bridges that when newly-built and old line is transformed raising speed railway, adopt (logical bridge 2201 types), the heavy 148t of the naked beam of this beam, the 160t that weighs after the quarrel is joined at station, the place ahead, the heavy maximum of axle of 5D axle welded frame formula bogie truck can reach more than the 40t before making existing bridging machine vehicle when setting up this kind beam sheet, surpass the rated load 40t of this type axletree, had great safety hazard.Therefore improve the railway bridge erecting machine vehicle structure, the forecarriage axle is heavy when the commercial operation speed of raising bridging machine vehicle, reduction bridge formation machine construction operation, and the safety that improves the bridge formation machine is an inevitable trend.
In sum, performances such as the dynamic performance of existing bridging machine vehicle, commercial operation speed await further raising.
Summary of the invention
Purpose of the present invention is exactly at above-mentioned present situation, a kind of vehicle for railway bridging machine is provided, it is used to set up the railway concrete T type beam of various girder spans, its dynamic performance is good, the curve negotiation ability height, commercial operation speed height can satisfy the railway transportation demand for raising speed, the forecarriage axle that reduces simultaneously under the operation operating mode is heavy, improves the security and stability of bridge formation machine.
The object of the present invention is achieved like this:
A kind of vehicle for railway bridging machine, it comprises car body underframe, little underframe, bogie truck, it is characterized in that: described little underframe has two, be respectively handle frame I and handle frame II, described handle frame I goes up and connects with the car body underframe by cartridge, connect with two two E axle welded frame formula bogie trucks by cartridge under the described foot bridge frame I, described foot bridge frame II goes up and connects with the car body underframe by cartridge, connects with two three E axle welded frame formula bogie trucks by cartridge under the described foot bridge frame II.
As to further improvement of the present invention, the side bearing structure is the gap side bearing between described car body underframe and the handle frame I, and the side bearing structure is the adjustable clearance side bearing between car body underframe and the handle frame II.
As to further improvement of the present invention, the side bearing structure is the adjustable clearance side bearing between described handle frame II and the three E axle welded frame formula bogie trucks, and the side bearing structure is an elastic side bearing between described handle frame I and the two E axle welded frame formula bogie trucks.
As to further improvement of the present invention, described car body underframe is girder construction in not having, form by curb girder, draw beam, sleeper beam, crossbeam, described curb girder is two fish belly box beam that be arranged in parallel, sleeper beam, crossbeam by perpendicular setting are connected into one, sleeper beam and crossbeam are set in parallel between two curb girders, and draw beam is parallel to curb girder and is fixedly linked on the sleeper beam.
As to further improvement of the present invention, described handle frame I is formed by a longeron, the two butt crossbeam assembly weldings that are vertically installed in the center member at its middle part and are arranged at two ends, and described longeron is a fish belly molding box girder construction.
As to further improvement of the present invention, described handle frame II is formed by a longeron, the two butt crossbeam assembly weldings that are vertically installed in the center member at its middle part and are arranged at two ends, and described longeron is a concave bottom molding box girder construction.
As to further improvement of the present invention, described adjustable clearance side bearing device is made up of side bearing body, side bearing box, side bearing movable cushion block, adjusting screw mandrel, jam nut etc., described side bearing body places in the side bearing box and upper surface is the plane, lower surface is the inclined-plane, its be arranged with can in the side bearing box, move, the side bearing movable cushion block of upper surface for fitting with side bearing body lower surface, described side bearing movable cushion block move by an end stretch out that the side bearing box is outer, the other end passes in the body wherein and with the adjusting screw mandrel control of its thread connection, regulate screw mandrel and lock by jam nut.
Beneficial effect of the present invention is: the present invention adopts the structural shape of two little underframe, all bogie trucks all connect with the car body underframe by little underframe, and adopt two group of three E axle welded frame formula bogie truck to replace original 5D axle welded frame formula bogie truck, avoid because of 5D axle bogie framework span big, the middle part wheel was to producing bigger side-play amount when vehicle passed through curve, produce bigger transverse force, often occur the phenomenon that slides down when causing by little curve; And it is right to have increased a wheel than original bridging machine vehicle, and the forecarriage axle that has reduced under the operation operating mode is heavy, makes the forecarriage maximum allowable axle load be reduced to 33.4t.Reduced greatly heavily to surpass the safety hazard that rated load is brought because of axle.
For avoiding all connecting the problem that has increased the vehicle whole height by the foot bridge frame because of bogie truck, girder construction in the nothing of car body underframe employing Pisces abdomen box curb girder of the present invention carrying, the main load bearing component longeron of handle frame I adopts fish belly molding box girder construction, the main load bearing component longeron of handle frame II adopts concave bottom molding box girder construction, optimize the steel structure pattern of vehicle, under the situation that has satisfied the steel structure requirement of strength, guaranteed the operation headroom of bridge formation machine, avoided the influence of changing of design the vehicle whole height.
The present invention is provided with the adjustable clearance side bearing being provided with between car body underframe and the handle frame II between adjustable clearance side bearing, handle frame II and the three E axle welded frame formula bogie trucks, the adjustable clearance side bearing is regulated screw mandrel and is promoted the side bearing movable block and move the height of adjusting the side bearing body with this by turning, by adjusting the position that jam nut locks the side bearing movable block.When hanging fortune, bridging machine vehicle the side bearing body is adjusted to lowest order and locking by adjusting side bearing movable block position, this moment, side bearing clearance was for hanging the requirement of fortune state, when the bridging machine vehicle operation, the side bearing body is adjusted to and body side bearing applying and locking by adjusting side bearing movable block position, this moment, side bearing and cartridge carried jointly, car body when both having avoided operation is because side bearing clearance produces the phenomenon of rocking, improve the safety and stability row of bridge formation machine, improved the dynamic performance of bridging machine vehicle again.This structure can satisfy operation simultaneously and hang the requirement of fortune operating mode, has solved the stability requirement of former bridging machine vehicle when satisfying operation and has adopted side bearing loading to reduce the dynamic performance of vehicle greatly, has seriously restricted the problem of its commercial operation speed.
In sum, the present invention has improved the dynamic performance of bridging machine vehicle by above measure, has improved commercial operation speed, the forecarriage axle is heavy when having reduced bridge formation machine construction operation, the safety that improves the bridge formation machine, meet the requirement of railway high speed development, have higher Technological Economy and be worth.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a car body Undercarriage structure scheme drawing of the present invention;
Fig. 3 is a handle frame I structural representation of the present invention;
Fig. 4 is a handle frame II structural representation of the present invention;
Fig. 5 is an adjustable clearance side bearing structural representation of the present invention;
Fig. 6 is the structural representation of traditional railway bridging machine vehicle.
Wherein:
1-car body underframe, 2-handle frame I, 3-handle frame II, 4-two E axle welded frame formula bogie trucks, 5-three E axle welded frame formula bogie trucks, 6-gap side bearing, 7-adjustable clearance side bearing, 8-elastic side bearing, the 101-curb girder, 102-draw beam, 103-sleeper beam, 104-crossbeam, 201-longeron I, 202-center member I, 203-end floor beam I, 303-longeron II, 304-center member II, 305-end floor beam II, 701-side bearing body, 702-side bearing box, 703-side bearing movable cushion block, 704-regulates screw mandrel, 705-jam nut.
The specific embodiment
Below in conjunction with accompanying drawing the present invention and the specific embodiment thereof are described in further details:
Embodiment 1:
A kind of vehicle for railway bridging machine, extremely shown in Figure 5 as Fig. 1, it comprises car body underframe 1, little underframe, bogie truck, little underframe has two, be respectively handle frame I 2 and handle frame II 3, connect with car body underframe 1 by cartridge on the handle frame I 2, car body underframe 1 is girder construction in not having, by curb girder 101, draw beam 102, sleeper beam 103, crossbeam 104 is formed, curb girder 101 is two fish belly box beam that be arranged in parallel, sleeper beam 103 by perpendicular setting, crossbeam 104 is connected into one, and sleeper beam 103 and crossbeam 104 are set in parallel between two curb girders 101, and draw beam 102 is parallel to curb girder 101 and is fixedly linked on the sleeper beam 103.Handle frame I 2 is formed by a longeron I 201, two butt crossbeam I, 203 assembly weldings that are vertically installed in the center member I 202 at its middle part and are arranged at two ends, and longeron I 201 is a fish belly molding box girder construction.Handle frame II 3 is formed by a longeron II 303, two butt crossbeam II, 305 assembly weldings that are vertically installed in the center member II 304 at its middle part and are arranged at two ends, and longeron II 303 is a concave bottom molding box girder construction.Foot bridge frame I 2 times connects with two two E axle welded frame formula bogie trucks 4 by cartridge, connects with car body underframe 12 by cartridge on the foot bridge frame II 3, and foot bridge frame II 3 times connects with two three E axle welded frame formula bogie trucks 5 by cartridge.The side bearing structure is a gap side bearing 6 between car body underframe 1 and the handle frame I 2, and the side bearing structure is an adjustable clearance side bearing 7 between car body underframe 1 and the handle frame II 3, and the side bearing structure is an adjustable clearance side bearing 7 between handle frame II 3 and the three E axle welded frame formula bogie trucks 5.Adjustable clearance side bearing 7 is made up of side bearing body 701, side bearing box 702, side bearing movable cushion block 703, adjusting screw mandrel 704, jam nut 705 etc., side bearing body 701 places in the side bearing box 702 and upper surface is the plane, lower surface is the inclined-plane, its be arranged with can in side bearing box 702, move, the side bearing movable cushion block 703 of upper surface for fitting with side bearing body 701 lower surfaces, side bearing movable cushion block 703 move by an end stretch out that the side bearing box is 702 outer, the other end passes in the body wherein and with adjusting screw mandrel 704 controls of its thread connection, regulate screw mandrel 704 by jam nut 705 lockings.The side bearing structure is an elastic side bearing 8 between handle frame I 2 and the two E axle welded frame formula bogie trucks 4.
The present invention invention but be not limited to above-mentioned embodiment as long as adopted the car body underframe by two little underframe and two E axle welded frame formula bogie trucks, the joining mode of three E axle welded frame formula bogie trucks, promptly belongs to protection scope of the present invention.