CN209382000U - A kind of large-tonnage idler wheel trolley with balance beam structure - Google Patents

Abstract

The utility model provides a kind of large-tonnage idler wheel trolley with balance beam structure, including trolley top plate, at least two groups wheel and wheel carrier, it further include equalizer bar component, lateral pin shaft and spherical hinge, equalizer bar component is set to below trolley top plate, the preceding bottom of equalizer bar component is fixedly connected at the top of lateral pin shaft, lateral pin shaft bottom is semi-cylindrical and is directly or indirectly articulated at the top of the wheel carrier of previous group wheel, spherical shape hinge top is fixedly connected on bottom after equalizer bar component, spherical shape hinge bottom is hemisphere face and is held on above the wheel carrier of later group wheel, a ball bowl component is welded at the top of the wheel carrier of later group wheel, ball bowl component has the spherical indent slot structure to match with spherical hinge hemisphere face.The utility model can encounter smooth section during steel shell immersed tube movement and keep normal walking, and by the stress balance of equalizer bar, entire transporting system of walking is carried out with stable state.

Description

A kind of large-tonnage idler wheel trolley with balance beam structure

Technical field

The utility model relates to the idler wheel trolleys for movement super-large component, and in particular to the balance of this idler wheel trolley Beam design.

Background technique

In recent years, being continuously increased with tunneling engineering over strait, across river, ultra-large type immersed tube Method for Installation are laid with seabed tunnel The method in road is more and more applied.Ultra-large type immersed tube generally carries out sinking to sea in the prefabricated rear transportation by driving in immersed tube prefabricated field Installation.

Large-scale immersed tube weighs about 80000 tons after concreting, need to use large-tonnage using the prefabricated immersed tube of the factory law Complete construction task in idler wheel trolley movement to different region.Since the flatness of rail is there are error, and every trolley weight bearing 400 tons and road environment interference, during trolley movement idler wheel wheel rim can because of rail uneven or other disturbing factors by one A reaction force, reaction force can make trolley entirety stress generate variation at this time, the micro- inclined situation of idler wheel occur, be regarded as firmly big Small generation degree is different.In the case where long-term force unbalance in this way, idler wheel localised load generates overload, and Full Vehicle System is done It disturbs, will cause the decline of trolley whole service life, maintenance times increase, and work efficiency reduces, and the duration not can guarantee.

Utility model content

The purpose of this utility model is to provide a kind of large-tonnage trolley with balance beam structure, to overcome the prior art Existing deficiency.

In order to achieve the above object, the technical solution that the utility model is taken are as follows: a kind of large-tonnage rolling with balance beam structure Trolley is taken turns, including the trolley top plate for load-bearing, the wheel for at least two groups wheel of walking and for installing connection wheel Frame further includes that equalizer bar component, the lateral pin shaft vertical with direction of travel and spherical hinge, the equalizer bar component are set to trolley top Below plate, be fixedly connected on the preceding bottom of equalizer bar component at the top of lateral pin shaft, lateral pin shaft bottom be semi-cylindrical and directly or It is articulated at the top of the wheel carrier of previous group wheel indirectly, spherical shape hinge top is fixedly connected on bottom after equalizer bar component, spherical Hinge bottom is hemisphere face and is held on above the wheel carrier of later group wheel, is welded at the top of the wheel carrier of later group wheel One ball bowl component, ball bowl component have the spherical indent slot structure to match with spherical hinge hemisphere face.

Preferably, lateral pin shaft semi-cylindrical can be accommodated and for cross by having at the top of the wheel carrier of previous group wheel To pin shaft semi-cylindrical in the semicolumn groove wherein circumferentially rolled.

Specifically, equalizer bar component includes upper plate, lower plate, stringer, left end cap and right end cap, upper plate, under Bottom plate, stringer are fixedly connected integral, and the top and middle part of left end cap and right end cap are bolted to connection respectively in bottom The lower part of the two sides of plate and lateral pin shaft, left end cap and right end cap is by bolted splice at the top of wheel carrier.

Its wheel carrier of large-tonnage idler wheel trolley with balance beam structure of the utility model passes through lateral pin shaft and spherical shape Hinge is connected with equalizer bar, and the power for being subject to balance beam structure is averagely transmitted on the wheel frame structure below beam, reaches vehicle Stress balance.Lateral pin shaft is connect with wheel carrier, is mounted below vehicle frame equalizer bar, is guaranteed the lateral stability of vehicle.Work as trolley When idler wheel is by reaction force, it can realize that correction is acted on by the rotation of spherical hinged ball head, better adapt to road The injustice of rail.Compared with prior art, the large-tonnage idler wheel trolley equalizer bar design of the utility model can be moved in steel shell immersed tube Smooth section is encountered during fortune and keeps normal walking, and by the stress balance of equalizer bar, entire transporting system of walking is with stabilization State carry out.

Detailed description of the invention

Fig. 1 is the main view of the large-tonnage idler wheel trolley of the utility model；

Fig. 2 is the idler wheel trolley equalizer bar of the utility model and the connection schematic diagram of lateral pin shaft and spherical hinge；

Fig. 3 is equalizer bar stress sketch；

Fig. 4 is that the spherical hinge of the utility model connect front schematic view with upper and lower component；

Fig. 5 is the side schematic view that the spherical hinge of the utility model is connect with upper and lower component；

Fig. 6 is that the lateral pin shaft of the utility model connect front schematic view with upper and lower component；

Fig. 7 is the lateral pin shaft and upper and lower component connecting side face schematic diagram of the utility model；

In attached drawing, the representative the component list of each label is as follows:

Trolley top plate 1；Lateral pin shaft 2；Spherical shape hinge 3；Equalizer bar component 4；Upper plate 4.1；Stringer 4.2；Lower plate 4.3； Right end cap 4.4；Left end cap 4.5；Link bolt 4.6；Wheel carrier 5；Semicolumn groove 5.1；Ball bowl 6；Wheel 7；Hydraulic jack 8。

Specific embodiment

Specific embodiment of the present utility model is made a detailed explanation with reference to the accompanying drawing.

It is as shown in Figure 1 a kind of large-tonnage idler wheel trolley with balance beam structure of the utility model comprising be used for The trolley top plate 1 of load-bearing, the wheel carrier 5 for the multiple groups wheel 7 of walking and for installing wheel, further include equalizer bar component 4, Lateral pin shaft and spherical hinge.

Equalizer bar component 4 includes upper plate 4.1, stringer 4.2, lower plate 4.3, upper plate 4.1, stringer 4.2, lower plate 4.3 are fixedly connected with integral, large-scale component of the upper plate 4.1 in support hydraulic jack 8 and trolley top plate 1 and top plate. As shown in Figure 6, Figure 7, the top and middle part of left end cap and right end cap are bolted to connection respectively in lower plate 4.3 and transverse direction The lower part of the two sides of pin shaft 2, left end cap and right end cap is articulated with 5 top of wheel carrier by link bolt 4.6.

Lateral pin shaft is vertical with direction of travel, and as shown in FIG. 6 and 7, bottom is semi-cylindrical, has at the top of wheel carrier Lateral pin shaft semi-cylindrical and recessed in the semicolumn for wherein making suitably circumferentially to roll for lateral pin shaft semi-cylindrical can be accommodated Slot 5.1.Lateral pin shaft is fixed together by left end cap 4.5 and right end cap 4.4 and the preceding bottom of equalizer bar component, and is defined in In space defined by semicolumn groove and left end cap and right end cap, will not left and right sidesing shifting, fall off.Lateral pin shaft 2 and vehicle frame 5 connect The surface of touching ensures surface matching by finishing, lateral pin shaft 2 is directed at the concave surface on vehicle frame 5 when installation, and make transverse bolt Can radially there be rotation appropriate between axis 2 and vehicle frame 5.

3 bottoms of spherical shape hinge are hemisphere face, and spherical shape hinge top is fixedly connected on equalizer bar component lower plate by welding manner Rear bottom, and be shelved on the wheel carrier of later group wheel, the wheel carrier of later group wheel is welded with a ball bowl 6, ball bowl top Portion is spherical indent slot structure, and bottom is plane and is welded in wheel carrier.The contact surface grinding process of spherical shape hinge 3 and ball bowl 7, Ensure surface roughness, the centre of sphere is aligned when installation, and the concave spherical surface of the convex spherical of equalizer bar spherical shape hinge 3 and ball bowl 7 is carried out Matching docking allows spherical hinge 3 to carry out micro- rolling on the direction all around of ball bowl 7.

Force principle as shown in figure 3, when equalizer bar 4 receives downward power, equalizer bar 4 by the pin shaft 2 of its left end with The bulb 3 of right end transfers force to the vehicle frame 5 of lower section.Vehicle frame 5 provides a support reaction, pin shaft 2 and vehicle to pin shaft 2 and bulb 3 The contact of frame 5 can be seen as line contact, and the contact between bulb 3 and vehicle frame 5 can be seen as point contact.Thus can will entirely by Power model simplification is supported at three point, this stress model improves idler wheel trolley to the adaptability of track irregularity degree.

Previous group wheel and later group wheel as described herein only refer to the sequence of expression, correspond respectively in the present embodiment The left side and the right wheel group in attached drawing, not refer in particular to the front-wheel and rear-wheel of roller platform vehicle direction of advance.The foregoing is merely this The preferred embodiment of utility model, is not intended to limit the utility model, as long as realizing that this is practical with essentially identical means The technical solution of novel purpose belongs within the protection scope of the utility model.

Claims (3)

1. a kind of large-tonnage idler wheel trolley with balance beam structure, including for load-bearing trolley top plate, for walking extremely Few two groups of wheels and the wheel carrier for installing connection wheel, it is characterised in that: further include equalizer bar component, vertical with direction of travel Straight lateral pin shaft and spherical hinge, the equalizer bar component is set to below trolley top plate, is fixedly connected at the top of lateral pin shaft flat The preceding bottom of balance beam component, lateral pin shaft bottom are semi-cylindrical and the wheel carrier top for being directly or indirectly articulated with previous group wheel Portion, spherical shape hinge top are fixedly connected on bottom after equalizer bar component, and spherical shape hinge bottom is hemisphere face and is held on later group wheel Wheel carrier above, be welded with a ball bowl component at the top of the wheel carrier of later group wheel, ball bowl component has and spherical cuts with scissors The spherical indent slot structure that hemisphere face matches.

2. the large-tonnage idler wheel trolley according to claim 1 with balance beam structure, it is characterised in that: previous group wheel Wheel carrier at the top of have and can accommodate lateral pin shaft semi-cylindrical and wherein circumferentially rolled for lateral pin shaft semi-cylindrical Semicolumn groove.

3. the large-tonnage idler wheel trolley according to claim 2 with balance beam structure, it is characterised in that: equalizer bar component Including upper plate, lower plate, stringer, left end cap and right end cap, upper plate, lower plate, stringer are fixedly connected with integral, left end cap And right end cap top and middle part be bolted to connection the two sides in lower plate and lateral pin shaft, left end cap and right end respectively The lower part of lid is by bolted splice at the top of wheel carrier.