CN206167939U - Automobile body rotary device of railcar - Google Patents

Abstract

The utility model discloses an automobile body rotary device of railcar, including platform, slewing bearing, slewing bearing seat, the rotating electrical machines that is used for bearing the automobile body, the slewing bearing outer lane fix the below at the platform, fixed the establishing on rotation support of pivoting support seat inner circle, the revolving axle bearing be connected with the slewing bearing inner circle, and slewing bearing wraparound pivot bearing center is rotatory, fixed the establishing on rotation support of rotating electrical machines, slewing bearing's outer lane on the cover be equipped with the outer lane gear. The utility model discloses simple structure can realize the all around rotation of automobile body 360 degrees to but have and rotate steady arbitrary angle degree and open characteristics such as stop.

Description

A kind of car body rotary apparatuss of railcar

Technical field

This utility model belongs to movie theatre field of circling in the air, and is related to a kind of Three Degree Of Freedom railcar, especially a kind of to be used for track The car body rotary apparatuss of car.

Background technology

In recent years, the development of China theme park is extremely swift and violent, the appearance of theme park and rises from terms of world wide, be with The industrialization of the country tourist recreation industry associated with the improvement of people's living standard is closely related.Its earliest blank is Gu Xi The variety show of cured, ancient rome era fairground, builds atmosphere, attracts customer by means such as music, dancing, magic and gamings. As handicraft is to mechanical industry is progressive, city a large amount of appearance, the entertainment form of this small-sized flowing is progressively evolved into specially The recreation ground based on open air of door.The middle period on 20th century, its form also from easily gentle meadow garden type, switchs to With mechanical play apparatus as characteristic, confused noise, the amusement park for stimulating are pursued.After World War II, becoming more diverse with life style, section Skill develops and of prosperous economy, forms the tourist sight innovation concept of theme park.It is " children's stories paradise ", " exploration paradise ", " wild dynamic Thing garden ", " holiday paradise " etc. grow up on America and Europe and other places in succession.Particularly nineteen fifty-five the U.S. Los Angeles build up first it is existing After for the theme park in meaning, the tourist recreation industry with theme park as representative obtains broad development all over the world, from rule Mould has compared with quantum jump in science and technology and culture content, and high in technological content item of recreation also becomes wide poly- people in the park that is the theme The Hot events of gas.

But in numerous items of recreation, the high-tech item of recreation that visitor can conscientiously participate in and interact therewith it is few again It is few, belong to that form is single mostly and visitor passively participate in obtaining sensory experience project it is in the majority, classify as conventional art type (with Based on mechanical technique) theme project, for the phase characteristic according to theme park development, experienced the first generation and rely on nature money Source, the second filial generation focuses on city amusement, and the third generation is to simulate, the process based on micro-landscape, in forth generation theme park with it is three-dimensional, The four-dimension, animation, the item of recreation development trend based on science and technology are such as emerged rapidly in large numbersBamboo shoots after a spring rain and are rised sheer from level ground, by modern computer, automatically control The high-tech means such as system, digital simulation and emulation, Active-Movie, acousto-optic-electric and art carry out perfect adaptation, allow visitor to experience The novel entertainment experience having no precedent, and the kernel item in the railcar interaction project exactly forth generation theme park that we develop Mesh, has merged the current international mainstream amusement skill such as 3D films, infrared electro technology, dynamic sport(s) car, disaster emulation, stunt Art, visitor can realize vacillating now to the left, now to the right, pitch in front and back, the dynamic stunt such as rotation by taking multivariant dynamic railcar, handss The game interactive that infrared dynamic device is participated in virtual world is held, is shuttled in real indoor environment, lead visitor's experience one The soul-stirring happy trip in field.

But existing railcar can only before and after and vacillate now to the left, now to the right, it is impossible to so that visitor is really experienced, limit Its popularization and application.

Utility model content

In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model to be to provide a kind of simple structure, it is capable of achieving The mechanism of car body all-directional rotation.

To reach above-mentioned purpose, this utility model employs the following technical solutions as follows：

A kind of car body rotary apparatuss of railcar, including the platform for bearing body, pivoting support, pivoting support seat, Electric rotating machine；Described pivoting support outer ring is fixed on the lower section of platform, and described pivoting support seat inner ring is fixed and is located at revolution On support, described gyroaxis bearing is connected with pivoting support inner ring, and pivoting support is around gyroaxis bearing central rotation, described Electric rotating machine fix and be located on rotating stand, be arranged with outer ring gear on the outer ring of described pivoting support.

In the car body rotary apparatuss of above-mentioned railcar, electric rotating machine is connected with reductor, covers on the output shaft of the reductor Rotary pinion is provided with, described outer ring gear is engaged with described rotary pinion.

In the car body rotary apparatuss of above-mentioned railcar, pivoting support is the outer ring of floating bearing, platform and the floating bearing Upper surface be fixedly connected, described pivoting support seat is fixedly connected with the inner ring of floating bearing.

This utility model adopts above technical scheme, with advantages below；

1. railcar of the present utility model can realize when in use swinging up and down for three degree of freedom, and can be with The multi-faceted experience such as rotation are realized, solving current track car can not realize the deficiency that multiple degrees of freedom is experienced, by left and right Wave, pitch in front and back, the dynamic stunt such as rotation, with the game interactive in virtual world, shuttle in real indoor environment, be Visitor brings the sense organ of maximum to enjoy and Perfect Experience.

2nd, this utility model simple structure, can realize the all-directional rotation of 360 degree of car body, and with stability of rotation, can The features such as arbitrarily angled start and stop.

Description of the drawings

Fig. 1 is the structural representation of this utility model railcar；

Fig. 2 is the structural representation of rotary apparatuss of the present utility model；

Fig. 3 is this utility model body frame structure for automotive schematic diagram；

Fig. 3-1 is this utility model degree of freedom safety arm structural representation；

Fig. 4 is the structural representation of anticollision device, collision-prevention device in Fig. 3；

Fig. 5 is this utility model wheel steering device and guider structural representation；

Fig. 6 is this utility model guider and parallel swing arm structure schematic diagram；

Fig. 7 is this utility model Load-bearing rail, slip track and railcar relativeness schematic diagram；

Fig. 8 is the positive structure diagram of this utility model power taking guider；

Fig. 9 is the side structure schematic view of this utility model power taking guider；

Figure 10 is this utility model power taking guider operation principle schematic diagram；

Reference is as follows：

1. car body；2. rotary apparatuss；3. vehicle frame；4. electric cylinders；5. guider；6. propons；7. back axle；8. mair motor；9. Rotational structure；101. front jockey wheel groups；Directive wheel group after 102.；103. link；104. carbon brush mounting plate；105. carbon brush； 106. electronic box；107. buffer spring；108. power taking directive wheels；109. power taking fast pulleys；110. power taking support wheels；111. directive wheel Axle；112. alignment pin；113. screw rod；114. positioning sleeve；201. platform；202. pivoting support；203. revolving support seats；204. rotation Turn little gear；205. reductor；206. electric rotating machine；207. rotating stand；208. outer ring gears；301. anticollision device, collision-prevention device；302. Safety arm；303. mair motor reductors；304. electric cylinders mounting seats；305. crash barrier；306. sleeve；307. loop bar；308. baffle ring； 309. anticollision springs；501. locating shaft；502. guide wheel shaft；503. parallel swing arms；504. bearing pin；505. load-bearing directive wheels； 506. extension spring；507. wheel carriers；508. connecting seat；801. wheel；802. ground；803. slip tracks；804. Load-bearing rail； 805. power taking guiders；806. movable rotation-shaft；807. Hooke's joint；808. bearing pin；901. connecting rod；902. rotating shaft； 903. turn to swing arm；904. support wheel.

Specific embodiment

This utility model is described in detail with reference to the accompanying drawings and examples.

As shown in Figures 1 to 3, Three Degree Of Freedom railcar of the present utility model, including car body 1, vehicle frame 3, before and after being located at vehicle frame 3 The propons 6 and back axle 7 at two ends, on described vehicle frame 3 mair motor 8 is provided with, and the mair motor 8 connects with described propons 6 or back axle 7 Connect, for railcar onward impulse is provided.

Car body 1 is the compartment for taking visitor, in shape, imitates mouselet or other are animals shaped, is adapted to passenger in trip The mental status loosened during object for appreciation, railcar according to installed in height rise and fall ground on track travel, into multiple analog field Jing Zhong, and coordinate the programs such as acousto-optic-electric, Active-Movie, while compartment can rotate and be swung according to three degree of freedom, The experience that recreates is allowed the viewer to, the car body of the railcar can carry number in 16 people or so, relative to current The number carried in railcar is greatly improved, and has saved the utilization of resource.

Mair motor 8 fixes the lower section for being located at vehicle frame 3, and the mair motor reductor 303 being provided with the lower section of vehicle frame 3 is connected, institute The mair motor 8 stated, mair motor reductor 303 are connected with described back axle 7, are additionally provided with described vehicle frame 3 for fixing electric cylinders 4 Electric cylinders erection support 304, mair motor 8 and mair motor reductor 303 are, in order to provide suitable power to railcar, and to accelerate And retarded motion, its dynamic action is on forerunner or rear-guard.Mair motor 8 and mair motor reductor 303 are located at the lower section of vehicle frame 3, Mainly for saving space, and ensure the smooth running of railcar.

The lower section of car body 1 is provided with rotary apparatuss 2, and described rotary apparatuss 2 are located at three electric cylinders 4 on vehicle frame 3 with fixation Connect respectively, rotary apparatuss 2 are installed together with moulding, and be connected on vehicle frame 3 by three electric cylinders, vehicle frame 3 can pass through Rotary apparatuss 2 realize 360 degree of rotations, arbitrarily angled start and stop.Simultaneously three electric cylinders 4 are arranged on the lower section of rotary apparatuss 2, with three The independent rise and fall of electric cylinders 4, realize the swing of car body three degree of freedom while rotation.

As shown in Fig. 2 rotary apparatuss 2 include platform 201, pivoting support 202, the pivoting support seat for bearing body 1 203rd, electric rotating machine 206；The described outer ring of pivoting support 202 is fixed on the lower section of platform 201, described pivoting support seat 203 Inner ring is fixed and is located on rotating stand 207, and described gyroaxis bearing 203 is connected with the inner ring of pivoting support 202, and pivoting support 202 fix and are located on rotating stand 207 around the central rotation of gyroaxis bearing 203, described electric rotating machine 206, described revolution Outer ring gear 208 is arranged with the outer ring of supporting 202, described electric rotating machine 206 is connected with reductor 205, the reductor 205 Output shaft on be arranged with rotary pinion 204, described outer ring gear 208 is engaged with described rotary pinion 204.Specifically Operation principle is that electric rotating machine 206 is operated, and drives reductor 205 to rotate, the rotary pinion being located on reductor 205 204 are rotated, and rotary pinion 204 drives and is set in the outer ring gear 208 that pivoting support 202 is arranged and rotates, and then drives Pivoting support 202 is rotated, and band motor vehicles bodies 1 are rotated, and realizes car body 360 degree of rotations at grade.

Used as a kind of specific embodiment, pivoting support 202 is floating bearing, described platform 201 and the floating bearing The upper surface of outer ring be fixedly connected, described pivoting support seat 203 is fixedly connected with the inner ring of floating bearing.This utility model Using the engagement between gear come the rotation with motor vehicles bodies, primarily to can timely brake, more obtain and safety, while Gear wheel is driven using little gear, it is more stable during rotation, and speed is slow, is adapted to the purpose of rotation, But while the guarantee with safety.

In specific implementation process, three electric cylinders 4 are supported on the lower section of rotating stand 207, and electric cylinders 4 drive rotating stand 207 and rotating stand 207 on electric rotating machine 206, reductor 205, outer ring gear 208 and rotary pinion transport about 204 It is dynamic, and then so that the swing of the audience's feeling three degree of freedom, experiences with more preferable.

Further, in order that car body 1 is during teetertottering, comprehensive, multivariant pendulum can be realized It is dynamic, three electric cylinders 4 according to the geometric layout for constituting isosceles triangle, and in the isosceles triangle top electric cylinders 4 near propons 6 One end, during rocking, three electric cylinders 4 can synchronization or independent operating, reach multi-faceted, multivariant swing, Solve the defect that current track car can only all around swing.

As shown in figure 3-1, safety arm 302 is provided between the pivoting support 203 and vehicle frame 3 of the bottom of rotary apparatuss 2, The lower end of safety arm 302 is movably arranged on vehicle frame by movable rotation-shaft 807, and the upper end of safety arm 302 connects a cross axle Universal joint 807, the Hooke's joint 807 includes the longitudinal axis and transverse axis, and consistent with length of wagon and width respectively, the longitudinal axis is then It is actively coupled with pivoting support 203 by bearing pin 808.Wherein three electric cylinders 4 are bearing under pivoting support 202 along triangle Side, when arbitrary electric cylinders therein are stretched about 4, due to the effect of Hooke's joint 807 so that pivoting support 202 can Flexibly to swing without mechanical interference occur and bringing larger twisting resistance.In addition safety arm shape in scissor type, can only be around The movable rotation-shaft 806 of lower end rotates, the movement travel of electric cylinders is carried out it is spacing, when there is electric cylinders failure, it is ensured that revolution Supporting 202 and the seat above it can be fallen back to safely in frame, it is to avoid pivoting support disorderly overturns, and makes whole guide rail car more Safety, the structure that this safety arm 302 and Hooke's joint 807 combine have the advantages that it is simple and reliable, it is flexible meeting While rotation, preferable Safety Redundancy effect is served.

As shown in Figure 3 and Figure 4, the rear and front end of vehicle frame 3 is respectively equipped with anticollision device, collision-prevention device 301, and the anticollision device, collision-prevention device 3 is mainly used in Railcar can protect the safety of visitor in railcar when colliding during motion.Anticollision device, collision-prevention device 301 includes anticollision Hurdle 305, the sleeve 306 being fixedly connected with the front end of vehicle frame 3 or rear end is fixedly connected with loop bar 307 on described crash barrier 305, Baffle ring 308 is arranged with one end that the loop bar 307 is connected with crash barrier 305, the other end of loop bar 307 is extend in sleeve 306, Anticollision spring 309 is arranged with described loop bar 307, the anticollision spring 309 is located between baffle ring 308 and sleeve 306, crash barrier 305 length mainly carries out whole dampings more than the front end of vehicle frame 3 or the length of rear end to vehicle frame 3, while in the mistake of connection Cheng Zhong, for more safety and stability, described crash barrier 305 is provided with two loop bars 307, the front end or rear end point of vehicle frame 3 It is not provided with two sleeves to coordinate with loop bar 307, in the presence of two anticollision springs, when colliding, cushion effect is obtained greatly Big reduction, is effectively prevented the harm come because of collision belt.

As shown in Figures 5 to 7, the rail unit of railcar includes load-bearing guide rail 804 and the two parts of slide-wire guide rails 803, paving The ground 802 that height rises and falls is located at, the tens of rice of length to thousands of rice, dolly advances along track, can enter different scene areas Experienced.Wherein load-bearing guide rail 804 adopts cross section and is made up of the rail of " I shape ", because railcar is heavier, adopts dynamic Power power supply is powered, therefore has synchronously laid slide-wire guide rails 803 in the both sides of load-bearing guide rail 804, by the electricity getting device in railcar Power current is introduced in railcar, railcar advance is driven and other power supplys is provided.

This utility model adopts two slide-wire guide rails 803, and two sets of carbon brush are configured with railcar, its object is to one Still can work during a set of slip rail fault of denier.During specific scheme, slip track is often covered to having A, B, C, three phase supply end And earth terminal, corresponding carbon brush also has four contact points.Open phase protector is provided with electronic box 106, the slip of both sides is led The 380V power supplys that rail is provided are monitored, once detect the power supply phase shortage or undertension of certain side, then automatically by power supply Switch to it is therein certain on the way, it is ensured that the reliability of power supply.In addition can also be by two sets of power supply unit parallel connections to railcar Power supply, reduces the load of single slip track, reduces its rated current and required material and requirement on devices.

In order that railcar is provided with guider 5 according to the line-of-road movement of setting below the vehicle frame 3 of railcar, Guider 5 is fixed on vehicle frame 3 by locating shaft 501, and the guider 5 is located at the lower end middle part of propons 6 and back axle 7, front Trailing wheel is provided with independent guider 5, drives its corresponding wheel steering device 9 to rotate, and makes railcar along Load-bearing rail 804 are turned and motion of being kept straight on.

In Fig. 5 and Fig. 6, guider 5 is fixed on vehicle frame 3 by locating shaft 501, and every guider 5 includes fixing Two groups of directive wheels 505 and two support wheels 904 in front and back before and after the two ends of connecting seat 508, every group of directive wheel 505 includes two water The directive wheel 505 of the flat waist for being arranged on I shape rail, support wheel 904 is fixed in frame 3, and is supported on I shape rail Upper surface top, the weight of whole railcars presses against on support wheel 904 substantially.Directive wheel 505 is fixed by a wheel carrier 507 On connecting seat 508, width of the gap between two directive wheels 505 slightly larger than the waist of I shape rail；Usual I shape The width of the waist of rail is 10mm, then the gap between two power taking directive wheels 108 takes 11-13mm.Eight are included in each car 505, four support wheels 904 of directive wheel, are separately positioned on front and back wheel bottom.

Wheel steering device 9 is by the connecting rod 901 of both sides wheel hub in connection propons 6 or back axle 7, is located at the middle part of connecting rod 901 Rotating shaft 902, the steering swing arm 903 that is connected rotating shaft 902 with guider 5 constitute, wherein turning to swing arm 903 and guider Connecting seat 508 on 5 is mutually connected firmly.

When guider 5 runs into Load-bearing rail 804 turns, two directive wheels 505 in front wheel guide device foremost First perceive and bend and deviate linear position, so with front wheel guide device in behind two directive wheels 505 between be formed slopely One horizontal sextant angle, the tilting action is further transferred to turn to swing arm 903 by connecting seat 508, turns to swing arm 903 and stirs rotating shaft 902 rotate, and then drivening rod 901 drives the inclination of two tire run-off the straights of front-wheel, its incline direction and guider 5 Direction is consistent, realizes the turning of front-wheel, and as a same reason, trailing wheel is also the turning carried out by its independent guider 5.This The advantage of the method for kind is that only tire 801 follows guider 5 to carry out tilt rotation when turning, and vehicle frame 3 is not inclined with tire Rotate, compare with tire together rotation technique with the vehicle frame of existing railcar, reduce the pressure turned to track, and turn Shi Qianhou tires are not in the problem significantly waved.

As one kind preferred embodiment, as shown in fig. 6, being provided between connecting seat 508 and a wheel carrier 507 parallel Swing arm 503, the two ends per only parallel swing arm 503 are connected on connecting seat 508 and a wheel carrier 507 respectively by the activity of rotating shaft 504, So that the two ends of parallel swing arm 503 can be rotated around rotating shaft 504, set between Qian Hou two wheel carriers 507 in addition It is equipped with extension spring 506.The effect for arranging parallel swing arm 503 is that parallel swing arm 503 can swing up and down in climb and fall, it is to avoid hard connection Directive wheel 505 is stuck on Load-bearing rail 804 when connecing the climb and fall for causing, and keeps one in the presence of extension spring 506 and gravity Fixed elastic force, while also functioning to the cushioning effect in moving.

As shown in Fig. 8, Fig. 9 and Figure 10, electricity getting device is the same similar to dolly, is arranged on bottom or the afterbody of railcar, Power taking dolly adopts the guider substantially similar with railcar, and difference is：(1) power taking dolly service pair as if carbon brush and Slip track, thus the required precision of its running orbit is higher, otherwise occurs phase shortage or voltage that carbon brush loose contact causes It is not enough；(2) power taking dolly only needs to accurately orbiting so that carbon brush contact is good, it is not necessary to as railcar Wheel steering device 9 is equally driven to rotate.(3) lighter in weight of power taking dolly, the span of front and back wheel can with very little, and unlike The same load of railcar can have greatly changed.

In order to realize high-precision power taking trolley travelling, power taking guider of the present utility model includes front jockey wheel group 101st, rear directive wheel group 102, the link 103 that is connected between front jockey wheel group 101 and rear directive wheel group 102, link 103 Be respectively provided on two sides with carbon brush mounting plate 104, carbon brush 105 is arranged on carbon brush mounting plate 104, and the top of link 103 is provided with Electronic box 106, carbon brush 105 is electrically connected with electronic box 106.Wherein front jockey wheel group 101 and rear directive wheel group 102 include two power takings 108, two power taking fast pulleys 109 of directive wheel and a power taking support wheel 110, whole power taking dolly includes four power taking directive wheels 108th, four power taking fast pulleys 109 and two power taking support wheels 110.Power taking support wheel 110 is supported on the upper end of I shape rail Face top, needs support to the weight of whole power taking dollies.Two power taking directive wheels 108 are horizontally set on the waist of I shape rail Portion, the gap between two power taking directive wheels 108 is slightly larger than the width of the waist of I shape rail, its size and material and track The parameter of car is identical.

In Fig. 8 and Fig. 9, front jockey wheel group 101 and rear directive wheel group 102 are identical directive wheel groups, each directive wheel group Including two power taking directive wheels 108, two power taking fast pulleys 109, a power taking support wheel 110, the vertically company of being fixed on Two guide wheel shafts 111 of the lower section of frame 103 are connect, power taking directive wheel 108 is connected by guide wheel shaft 111 with link 103, and is taken The end face for being electrically directed to wheel 108 is parallel with link 103, and power taking fast pulley 109 is fixed on power taking and is oriented to by alignment pin 112 respectively The middle part of wheel shaft 111, and the power taking fast pulley 109 in two guide wheel shafts 111 is located at positioned at the interior of two guide wheel shafts 111 Side, described power taking support wheel 110 is movably connected in two and leads by the screw rod 113 being through on the centrage of power taking support wheel 110 To between wheel shaft 111, and the power taking support wheel 110 is located at the surface at two centers of power taking fast pulley 109.

Further, in order to keep power taking support wheel 110 during installation can with position adjustments, and the moment keep It is connected with two guide wheel shafts 111 respectively in the surface of power taking fast pulley 109, therefore the two ends of screw rod 113, and power taking is supported A positioning sleeve 114 being set on screw rod 113 is provided between wheel 110 and guide wheel shaft 111.

Distinguish with abovementioned rails car guider 5, many two power taking fast pulleys 109 of power taking guider should Power taking fast pulley 109 is vertically set on the bottom of I shape rail upper surface, and the profile and I shape of power taking fast pulley 109 The section of guide rail is adapted, and the section of wheel is not cylinder but conical.Its objective is by power taking directive wheel 108, take Electric fast pulley 109 and power taking support wheel 110, from side is two-way, top surface and bottom surface guide rail and top and middle part have been carried out it is spacing, Power taking dolly be ensure that along the operation of guides with high precision, as long as ensureing that slide-wire guide rails 803 are led with load-bearing in such installation process The relative positional accuracy and dimensional accuracy of rail 804, it is possible to guarantee it is good between carbon brush 105 and slide-wire guide rails 803 conduct, Substantially increase the reliability of power taking.

For the stuck phenomenon in track of power taking guider for solving easily to occur during climb and fall, every power taking directive wheel 108 and corresponding power taking fast pulley 109 connected firmly with link 103 by the guide wheel shaft 111 of vertical direction, wherein it is leading to At least one group of the top of guide wheel shaft 111 is provided with buffer spring 107 in wheel group 101 and rear directive wheel group 102 so that up and down With certain swing surplus during slope, it is unlikely to stuck；In the case of as turning, in practice it has proved that, before and after power taking dolly Stride sizes are less, and lighter in weight, in the case of the reasonable clearance between two power taking directive wheels 108 is kept, when turning It is then unaffected, be not in be stuck phenomenon in orbit by power taking guider.

Exemplified as above is only, to illustration of the present utility model, not constitute to protection domain of the present utility model Limit, every design same or analogous with this utility model is belonged within protection domain of the present utility model.

Claims (3)

1. car body rotary apparatuss of a kind of railcar, it is characterised in that include platform (201), the revolution for bearing body (1) Supporting (202), pivoting support seat (203), electric rotating machine (206)；Described pivoting support (202) outer ring is fixed on platform (201) lower section, described pivoting support seat (203) inner ring is fixed and is located on rotating stand (207), described gyroaxis bearing (203) it is connected with pivoting support (202) inner ring, and pivoting support (202) is around gyroaxis bearing (203) central rotation, it is described Electric rotating machine (206) fixation is located on rotating stand (207), and on the outer ring of described pivoting support (202) outer ring tooth is arranged with Wheel (208).

2. a kind of car body rotary apparatuss of railcar according to claim 1, it is characterised in that described electric rotating machine (206) reductor (205) is connected with, rotary pinion (204) is arranged with the output shaft of the reductor (205), described is outer Circle gear (208) is engaged with described rotary pinion (204).

3. a kind of car body rotary apparatuss of railcar according to claim 1 and 2, it is characterised in that described revolution (202) are held for floating bearing, described platform (201) is fixedly connected with the upper surface of the outer ring of the floating bearing, described returns Turn fulcrum bearing (203) to be fixedly connected with the inner ring of floating bearing.