CN212667372U

CN212667372U - Novel unit is changed to EMUs bogie

Info

Publication number: CN212667372U
Application number: CN202021211109.7U
Authority: CN
Inventors: 曹彬
Original assignee: Hebei Qingtie Machinery Equipment Manufacturing Co ltd
Current assignee: Hebei Qingtie Machinery Equipment Manufacturing Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-03-09
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses a novel unit is changed to EMUs bogie, include: the device comprises a main body framework, a head supporting mechanism and a track bed mechanism; the supporting head can realize the alignment of the supporting head and a train erecting point of the motor train unit by self driving along the supporting head walking rail; the track bed mechanism comprises a track bed and a lifting mechanism; the track bed is provided with a track; the lifting mechanism drives the track bed to reciprocate along the height direction, so that the track is selectively butted with the fixed track to form a continuous track or is butted with a negative working layer; when the lifting mechanism drives the track bed to a lifting state, the track is butted with the fixed track to form a continuous track; when the lifting mechanism drives the track bed to descend from the lifting state to the first descending state, the track is in butt joint with the negative working layer, and the carriage is lifted by the supporting head. The utility model discloses lift in step and easily control, be suitable for the change operation of all models EMUs bogie, can effectively utilize the underground space to overhaul the operation.

Description

Novel unit is changed to EMUs bogie

Technical Field

The utility model belongs to the technical field of pit type car lifting jack, more specifically relates to a novel unit is changed to EMUs bogie.

Background

The existing pit type car lifting jack is provided with a bogie lifting device with a lifting track and car body lifting devices arranged on two sides of a car body in a plurality of pits with certain intervals; and the fixed rails are arranged on the ground between the adjacent pits, and the lifting rails and the fixed rails which are arranged adjacently form a continuous rail together, so that the carriage and the bogie can conveniently walk. Generally, two bogies are installed on one carriage, one bogie needs to be provided with two bogie lifting devices which are oppositely arranged on two sides of a train body, when the train is overhauled, a plurality of bogie lifting devices are needed to simultaneously lift the whole train, the whole train leaves the ground and is lifted to a certain height, then the whole train is lifted to a certain height by the train body lifting devices and extends into frame seats arranged on two sides of the train, then a worker can separate the bogie of the train from the train body, then the bogie lifting devices bear the unloaded bogie and descend to the ground and are flush with a fixed rail, the bogie can be moved along a continuous rail, the train body is lifted by the train body lifting devices, and after all the bogies are removed, the worker can overhaul the train.

Because the whole train needs to be lifted to a certain height, the existing pit type car lifting jack has extremely high requirement on the synchronism of a bogie lifting device; meanwhile, because the bogie lifting device and the vehicle body lifting device are both fixedly arranged on two sides of the carriage, the tolerance to train parking errors is extremely low (when a train stops, the bogie is guaranteed to stop on the bogie lifting device, and the position correspondence between the bogie seat and the vehicle body lifting device is also guaranteed), so that the requirements on parking operation of a driver are extremely high; furthermore, because a certain distance is reserved between adjacent pits, the engineering quantity and the cost of pit excavation and the construction of the whole car lifting jack are large in order to ensure the continuity of the lifting track and the fixed track; furthermore, because the bogie lifting device and the vehicle body lifting device are fixedly installed, the existing pit type car lifting jack is only suitable for trains with specific carriage lengths, but the types of trains produced in China are not uniform, so that the application range of the existing pit type car lifting jack is very limited and is all ground operation, the occupied area of a train overhaul base is very large, and the construction cost is high.

Disclosure of Invention

To the above defect or the improvement demand of prior art, the utility model provides a unit is changed to novel model EMUs bogie. Wherein, novel EMUs bogie change unit includes:

the device comprises a main body framework, a head supporting mechanism and a track bed mechanism; the two main body frameworks are respectively arranged at two sides of the carriage; the head supporting mechanism comprises a supporting head and a supporting head walking rail; the supporting head can be driven along the supporting head walking rail to realize the alignment of the supporting head and a train erecting point of the motor train unit; the supporting head walking rail is arranged on the main body framework and extends along the track direction; the track bed mechanism comprises a track bed and a lifting mechanism; the track bed is provided with a track; the lifting mechanism is connected with the track bed and drives the track bed to reciprocate along the height direction, so that the track is selectively butted with a fixed track to form a continuous track or is butted with a negative working layer; when the lifting mechanism drives the track bed to a lifting state, the track is in butt joint with the fixed track to form a continuous track, and a carriage drives into the track bed along the continuous track; the elevating system drive the ballast bed by when lifting state descends to first decline state, track and a burden working layer butt joint, the ballast bed bear in bogie that the carriage was dismantled descends to a burden working layer, the support head lifts the carriage, makes the carriage hang in along direction of height in the top of ballast bed.

Optionally, the head supporting walking rail is arranged below the fixed rail along the height direction; when the lifting mechanism drives the track bed to a lifting state, the track is in butt joint with the fixed track to form a continuous track, and a carriage drives into the track bed along the continuous track; when the lifting mechanism drives the track bed to descend from the lifting state to a second descending state, the carriage descends to a lifting state along with the track bed, and the supporting head moves along the supporting head walking rail to realize alignment with a train erecting point of the motor train unit; the elevating system drive the track bed by when the second decline state descends to first decline state, track and burden one working layer butt joint, the track bed bear in the bogie that the carriage was dismantled descends to burden one working layer, the support head lifts the carriage, makes the carriage hang in along the direction of height in the top of track bed.

Optionally, the body framework comprises a support plate extending along the track direction and a support column extending along the height direction; the supporting head walking rail is arranged on the supporting plate; an accommodating groove is formed in one side, close to the carriage, of the supporting column, and the lifting mechanism is installed in the accommodating groove; the ballast bed is in concave-convex fit with the supporting columns, so that the ballast bed can slide along the height direction on the supporting columns.

Optionally, the track bed is provided with a working channel along the height of the vehicle body on the inner side of the track, the working channel is provided with a lifting platform, the lifting platform comprises a workbench and a lifting mechanism, and the lifting mechanism drives the workbench to reciprocate along the height direction of the vehicle body.

Optionally, the lifting mechanism includes a first jacking mechanism and a second jacking mechanism, and the first jacking mechanism is mounted on the second jacking mechanism, so that the second jacking mechanism can drive the first jacking mechanism to reciprocate along the height direction; the first jacking mechanism is connected with the track bed, so that the first jacking mechanism can drive the track bed to reciprocate along the height direction.

Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:

1. the utility model provides a pit type car lifting jack of novelty, this a plurality of novel EMUs bogie change unit end to end alright form a dynamic track that constitutes by setting up the track on the railway roadbed, this dynamic track drives into before the maintenance station with fix the fixed track formation continuous track on ground at the train, the train drives into the maintenance station along this continuous track, the train gets into behind the dynamic track, and after the carriage is lifted to the support head, the bogie that gets off is along with the railway roadbed one descends to a burden working layer, and the train still stops at the working layer that is equipped with fixed support head and walks the shape rail, the transfer of bogie is not on the coplanar layer with the train. In conclusion, the utility model discloses realize that the lifting mode of train is different from prior art completely, whole train only need stop on dynamic track can, and the support head can follow the track direction and walk by oneself in order to match EMUs point of putting up a train, therefore improved the error tolerance that the train stopped greatly; meanwhile, because the train stops on the dynamic track, and the dynamic track forms the continuous track with the fixed track before the train does not enter the station, when forming the continuous track, only have requirements to the lifting stroke of the track bed, it is very little to the synchronism requirement that the track bed lifts, when the utility model is suitable for different trains of the equal-distance or unequal-distance and equal-height motor train unit car lifting point, the head-supporting walking track can be set up in the working layer (such as the ground layer) equipped with the fixed head-supporting walking track, at this moment, the utility model discloses there is no requirement at all to the synchronism of the elevating system, the head-supporting and motor train unit car lifting point go on equal-height setting can; when the utility model is suitable for an arbitrary height or during the different trains of EMUs built on stilts point of distance arrangement, the below of fixed support head walking rail is laid to support head walking rail, and the distance that the railway roadbed drove the synchronous decline of train (EMUs built on stilts point and the distance between the ground support head walking rail) also is less than current synchronous lifting distance (the required height of staff maintenance, generally for the height of staff's walking upright), for prior art, has reduced the synchronism requirement equally. More preferably, the utility model discloses to the maintenance space of train be located underground space, occupy the ground floor at all and above space, improved space utilization greatly, simultaneously, because the utility model is applicable to different train models, application scope is wide, need not to set up an inspection track to each train model, greatly reduced the area of maintenance station; more excellent, the utility model discloses a whole maintenance space is integral (need not to set up the trapped orbit between the adjacent railway roadbed), easily builds and with low costs.

2. The utility model discloses a ballast bed is equipped with lift platform to realize that the staff can overhaul the train on the ballast bed, improve the convenience that the staff overhauld.

3. The utility model discloses a when elevating system was secondary elevating system, each climbing mechanism (being first climbing mechanism and second climbing mechanism promptly) can drive alone, and sectional type control has been simplified the utility model discloses a loaded down with trivial details degree of procedure and the degree of difficulty simplify flow and easily control.

4. The utility model discloses a position sensor fixes a position each support head to realize the control of each support head orbit, thereby guarantee that the support head can satisfy the not equidistance EMUs of track direction and put up the car point and match.

5. The utility model discloses a hold in palm the head and have self-driven and aim at the EMUs and erect the performance of car point, improved greatly the utility model discloses a self-adaptability and harmony.

6. The utility model discloses a but each compatible all models EMUs bogie change system synchronous operation or independent operation, can the pertinence overhaul a certain carriage to whole train or train, change the current fixed maintenance mode that needs whole train of whole lifting and realize whole or local maintenance to the train, improved greatly the utility model discloses the diversification of operation and flexibility, convenience, the pertinence of using, the reduction of adaptability the utility model discloses a use cost.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural view of an embodiment of the head-supporting walking rail of the present invention;

FIG. 3 is a schematic structural view of the bogie of the present invention;

fig. 4 is a schematic structural diagram of another embodiment of the present invention;

fig. 5 is a schematic structural view of a train driving into the present invention.

In all the figures, the same reference numerals denote the same features, in particular: 11-body framework, 111-supporting plate, 112-supporting column, 120-supporting head, 121-self-driving component, 122-telescopic component, 123-supporting head walking rail, 1231-I-shaped component, 1232-walking rail, 1233-clamping groove, 1234-connecting plate, 1235-butting plate, 131-track bed, 1311-rail, 1312-working channel, 1313-supporting column, 132-lifting mechanism, 1331-working platform, 1332-lifting mechanism, 141-baffle plate, 142-supporting frame, 2-negative working layer, 31-carriage and 32-bogie.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. In the present invention, for convenience of description, the upper and lower in the present specification means upper and lower in the height direction of the car (i.e., the height direction), the track direction is the length direction of the car, and the vehicle width direction is the width direction of the car (i.e., the left and right directions of the car), which do not completely represent the actual situation.

In an embodiment of the present invention, as shown in fig. 1-5, a compatible all models of motor train unit bogie change system includes: the track bed comprises a main body framework 11, a head supporting mechanism and a track bed mechanism; the two main body frameworks 11 are respectively arranged at two sides of the carriage 31; the head supporting mechanism comprises a supporting head 120 and a supporting head walking rail 123; the supporting head 120 can be driven by itself along the supporting head walking rail 123 to realize the alignment of the supporting head and the train erecting point of the motor train unit; the head supporting walking rail 123 is arranged on the main body framework 11 and extends along the track direction; the track bed mechanism includes a track bed 131 and a lifting mechanism 132; the track bed 131 is provided with a track 1311; the lifting mechanism 132 is connected with the track bed 131, and the lifting mechanism 132 drives the track bed 131 to reciprocate along the height direction, so that the track 1311 is selectively butted with a fixed track to form a continuous track or butted with a negative working layer 2; when the lifting mechanism 132 drives the track bed 131 to the lifting state, the rail 1311 is butted with the fixed rail to form a continuous rail, and the carriage 31 drives into the track bed 131 along the continuous rail; when the lifting mechanism 132 drives the track bed 131 to descend from the lifted state to the first lowered state, the rail 1311 is abutted to the negative working layer 2, the bogie 32, which is detached from the track bed 131 and the carriage 31, descends to the negative working layer 2, and the carriage 31 is lifted by the supporting head 120, so that the carriage 31 is suspended above the track bed 131 in the height direction.

In practical application, the fixed track of train, especially EMUs generally sets up in ground, consequently, among the prior art, when needing to overhaul the train, all lifts the train off ground and the staff of being convenient for overhauls the train at vehicle bottom dismouting bogie 32 or to the train through automobile body lifting device and bogie 32 lifting device, nevertheless the utility model discloses need not to lift the train, the train stops all the time in the ground floor. Specifically, before the train is about to drive into the train maintenance base, the lifting mechanism 132 drives the track bed 131 to be lifted to be flush with the ground, so that the rails 1311 of the track beds 131 and the fixed rails form a continuous rail together, and the train can completely drive into the movable continuous rail formed by the rails 1311 of the track bed 131 along the continuous rail, but the utility model discloses there is no requirement for each lifting mechanism 132 to lift the track bed 131 synchronously, as long as the track bed 131 is finally lifted to be flush with the ground, it is not required to need a plurality of bogies 32 lifting devices to lift the train synchronously like the prior art, and the synchronism of synchronous lifting is still a technical problem in the field. And finally the supporting head 120 will lift the carriage 31 on the ground floor, and the bogie 32 detached from the carriage 31 descends to minus one working floor 2 (i.e. the underground layer below the ground floor) along with the track bed 131, and the worker can detach the bogie 32 and overhaul the bottom of the carriage 31 on the track bed 131, so as to transfer the overhaul space of the worker from the ground to the ground, thereby freeing the ground working space. More excellent, the back is stopped successfully to the support head 120 at the train and drives into railway roadbed 131, and support head 120 is followed the support head and is walked the shape rail 123 and is walked to the bogie 32 rather than counterpointing, thereby makes the utility model is suitable for a train of more types, practicality and suitability are stronger to effectively reduce train maintenance base area and construction cost. And do not have the trapped orbit between the bed 131 of adjacent setting, need not to correspond bogie 32 lifting device and automobile body lifting device's position and trapped orbit like prior art and carry out the interval and excavate, the utility model discloses a bed 131 all concentrates on the trapped orbit's end, for the continuation of trapped orbit, can excavate together, once excavate can, easily implement, dig with, each structure arrange and build.

Optionally, the main framework 11 includes a support plate 111 extending along the track direction and a support column 112 extending along the height direction; the carrier head running rail 123 is mounted to the support plate 111. In practical application, a plurality of support columns 112 are sequentially arranged at intervals along the track direction, and one or a plurality of support plates 111 are sequentially spliced end to end along the track direction to form a continuous support track; the corresponding one or more supporting head walking rails 123 are sequentially spliced end to end along the track direction to form a continuous supporting head walking rail, and the same adjacent track beds 131 are also spliced to form a movable continuous track, so that a train can conveniently drive in. When the bogie 32 of different grade type or the same type train is equal height for ground, no matter whether adjacent bogie 32 is the equidistance, can with the utility model discloses a main part framework 11 is installed subaerial for backup pad 111 is higher than ground, and then makes the high equal height setting with the bogie 32 of train of the height of tow head 120.

Optionally, the lifting mechanism 132 is a screw pair, and includes a motor, a nut, a screw, and a guide member, the guide member extends along the height direction, the lower end of the guide member is provided with a motor cartridge, the motor is disposed in the motor cartridge, a concave-convex matching portion is disposed at a contact position of the guide member and the track bed 131 to ensure linearity of the track bed 131 when reciprocating along the height direction, one end of the screw is connected to the motor, and the other end of the screw is connected to the upper end of the guide member; the nut is fixedly connected with the ballast 131. In practical applications, a plurality of pairs (more than one pair) of lifting mechanisms 132 correspond to one track bed 131, the plurality of pairs of lifting mechanisms 132 are arranged at intervals along the track direction, and each pair of lifting mechanisms 132 is respectively arranged at two sides of the track bed 131 along the vehicle width direction. It will be appreciated that the guide and the support column 112 may be one component, as the guide and the support column 112 extend in the same direction.

Optionally, the track bed 131 is provided with a working channel 1312 along the height of the vehicle body at the inner side of the track 1311, the working channel 1312 is provided with a lifting platform, the lifting platform comprises a working platform 1331 and a lifting mechanism 1332, and the lifting mechanism 1332 drives the working platform 1331 to reciprocate along the height direction of the vehicle body. Optionally, a lifting mechanism 1332 is mounted to the track bed 131. Specifically, the track bed 131 includes a left track bed provided with a left rail, a right track bed provided with a right rail, and a support column 1313; the left and right rails together form rail 1311; the left track bed and the right track bed are oppositely arranged at intervals along the vehicle width direction, so that a space between the left track bed and the right track bed forms a working channel 1312; the left track bed and the right track bed are both arranged above the bearing column 1313; and the left and right ballast beds have lifting channels corresponding to the lifting mechanisms 1332, the lifting channels extending in the height direction. Optionally, the upper surface of the table 1331 may be optionally flush with or below the upper surface of the track bed 131 with the reciprocating motion of the lifting mechanism 1332. In practical applications, when a worker needs to detach the bogie 32 or overhaul the vehicle bottom, the workbench 1331 is lowered to a certain distance below the upper surface of the track bed 131, so that the upper surface of the workbench 1331 and the upper surface of the track bed 131 form a working space convenient for the worker to walk, and thus the worker can detach the bogie 32 which is located on the track 1311 and is connected with the carriage 31 or overhaul the vehicle bottom in the working space by standing on the workbench 1331. Of course, the worker can attach and detach the bogie 32 only by the work table 1331. And the maintenance to the vehicle bottom can be dismantled at the bogie 32 after, the bogie 32 descends to minus a work level 2 along with the railway roadbed 131 together, after the bogie 32 shifts to other positions from the railway roadbed 131 to make the upper surface of workstation 1331 level with the upper surface of railway roadbed 131, the staff can directly stand on the railway roadbed 131 that levels with minus a work level 2 to overhaul the vehicle bottom. It should be noted that the states of the workbench 1331 and the track bed 131 can be programmed according to actual needs, so as to meet the purpose of disassembling and assembling the bogie 32 and overhauling the vehicle bottom by workers, and the details are not repeated herein.

Optionally, the head 120 includes a self-driving assembly 121, a telescopic assembly 122, and an image sensor; the self-driving assembly 121 comprises a motor, an encoder, a mounting frame, a roller, a transmission shaft and a butting part; the mounting frame comprises an inner side plate, an outer side plate and a mounting plate, the inner side plate and the outer side plate are oppositely arranged on the outer side of the mounting plate along the vehicle width direction, two ends of a transmission shaft are respectively coupled to the inner side plate and the outer side plate in a shaft mode, and the roller is sleeved on the transmission shaft; the motor is in transmission connection with the transmission shaft, and the encoder is arranged on a rotating shaft of the motor; the abutting part is arranged on the mounting frame and is opposite to the roller along the height direction, the abutting part abuts against the head support walking rail 123 along the height direction, sliding friction or rolling friction is formed between the abutting part and the head support walking rail 123, and the roller forms rolling friction with the head support walking rail 123; the telescopic assembly 122 and the image sensor are both mounted on the mounting bracket and both arranged towards the carriage 31; when the telescopic assembly 122 is in the extended state, the telescopic assembly 122 lifts the carriage 31; when the retraction assembly 122 is in the retracted state, the retraction assembly 122 is away from the car 31.

Optionally, the head-supporting walking rail 123 includes a connecting plate 1234 and two i-shaped members 1231, the two i-shaped members 1231 are arranged at intervals along the vehicle width direction, and two ends of the connecting plate 1234 are respectively connected to one side of one i-shaped member 1231, which is close to the other side; the I-shaped parts 1231 comprise an upper plate, a lower plate and vertical plates, the upper plate and the lower plate are arranged at intervals along the height direction, one end of each vertical plate is connected with the upper plate, the other end of each vertical plate is connected with the lower plate, so that the I-shaped parts 1231 form two clamping grooves 1233 arranged along the vehicle width direction, two ends of each connecting plate 1234 are respectively in concave-convex fit with the clamping grooves 1233 which are close to the two I-shaped parts 1231, the two clamping grooves 1233 which are closest to and farthest from the carriage 31 contain abutting parts, the abutting parts are in contact connection with the lower surface of the upper plate, the upper surface of the upper plate forms a walking track 1232 for the roller to walk, the abutting parts not only ensure the self-walking linearity of the supporting head 120, but also effectively ensure that the side-turning phenomenon does not occur when the supporting head 120 lifts the carriage 31, the load-carrying performance of the supporting head 120 is ensured, and the structural friction of the roller, safety and reliability of the self-walking of the roller.

Optionally, to reduce the difficulty of the carrier head 120 self-walking, the abutment is an abutment wheel. Preferably, an abutment plate 1235 is provided between the upper plate and the abutment wheel, and at this time, the abutment wheel is in contact with the abutment plate 1235. The abutment wheels may be directly journalled to the inner and outer side plates. Optionally, the telescopic assembly 122 includes a driving assembly and a supporting member, and the driving assembly and the supporting member reciprocate along the vehicle width direction.

Optionally, the carrier head trace rail 123 is provided with a plurality of position sensors for positioning the carrier head 120. Each type of train is correspondingly provided with a position sensor, so each support head 120 is correspondingly provided with each type of position sensor, and when the utility model is suitable for two types of trains, each support head 120 is correspondingly provided with two position sensors; when the utility model is suitable for a five kinds of trains, then each support head 120 corresponds and is equipped with five position sensor.

In another embodiment of the present invention, as shown in fig. 1 to 5, unlike the above embodiment, the head-supporting walking rail 123 is disposed below the fixed rail in the height direction; when the lifting mechanism 132 drives the track bed 131 to the lifting state, the rail 1311 is butted with the fixed rail to form a continuous rail, and the carriage 31 drives into the track bed 131 along the continuous rail; when the lifting mechanism 132 drives the track bed 131 to descend from the lifting state to the second descending state, the carriage 31 descends to the lifting state along with the track bed 131, and the supporting head 120 moves along the supporting head walking rail 123 to realize the alignment with the train lifting point of the motor train unit; when the lifting mechanism 132 drives the track bed 131 to descend from the second descending state to the first descending state, the rail 1311 is abutted to the negative working layer 2, the bogie 32, which is detached from the track bed 131 and the carriage 31, descends to the negative working layer 2, and the carriage 31 is lifted by the supporting head 120, so that the carriage 31 is suspended above the track bed 131 in the height direction. Optionally, the main framework 11 includes a support plate 111 extending along the track direction and a support column 112 extending along the height direction; the head-supporting walking rail 123 is arranged on the supporting plate 111; an accommodating groove is formed in one side of the supporting column 112 close to the carriage 31, and the lifting mechanism 132 is installed in the accommodating groove; the track bed 131 is engaged with the support pillars 112 in a concave-convex manner, so that the track bed 131 can slide in the height direction on the support pillars 112. In practical applications, the lower ends of the support posts 112 may be fixed to the negative working layer 2. Optionally, a layer of shielding plate 141 which is arranged flush with the ground is laid above the head supporting mechanism in the height direction; when the track bed 131 is in the lifted state, the upper surface of the track bed 131 in the height direction is flush with the shielding plate 141 (i.e., the upper surface of the track bed 131 is flush with the ground). Optionally, the shielding plate 141 is supported by the supporting frame 142; therefore, the utility model is suitable for any type of train, the track bed 131 can realize the adjustment of the descending distance of the track bed 131 between the lifting state and the second descending state according to the height of the bogie 32 of different trains, and the supporting head 120 can also adjust the walking distance according to the spacing distance of the bogie 32 of different trains; meanwhile, all the parts are not higher than the ground height, and the ground space is not occupied completely.

In another embodiment of the present invention, different from the above embodiments, the lifting mechanism 132 of this embodiment includes a first jacking mechanism and a second jacking mechanism, and the first jacking mechanism is installed on the second jacking mechanism, so that the second jacking mechanism can drive the first jacking mechanism to reciprocate along the height direction; the first lift mechanism is connected to the track bed 131 such that the first lift mechanism drives the track bed 131 to reciprocate in the height direction. In this way, the first jacking mechanism is responsible for switching the track bed 131 between the lifting state and the second descending state, and the second jacking mechanism is responsible for switching the track bed 131 between the second descending state and the first descending state, which is different from the above embodiment in which the two-stage lifting control of the lifting mechanism 132 is directly implemented through the screw pair, and the embodiment in which the sectional control of the lifting mechanism 132 is implemented.

In another embodiment of the present invention, different from any of the above embodiments, the supporting head 120 may not have an abutting portion, and the roller directly travels in the engaging groove 1233.

It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims

1. A novel EMUs bogie change unit which characterized in that includes:

the device comprises a main body framework, a head supporting mechanism and a track bed mechanism;

the two main body frameworks are respectively arranged at two sides of the carriage;

the head supporting mechanism comprises a supporting head and a supporting head walking rail; the supporting head can be driven along the supporting head walking rail to realize the alignment of the supporting head and a train erecting point of the motor train unit; the supporting head walking rail is arranged on the main body framework and extends along the track direction;

the track bed mechanism comprises a track bed and a lifting mechanism; the track bed is provided with a track; the lifting mechanism is connected with the track bed and drives the track bed to reciprocate in the height direction, so that the track is selectively butted with a fixed track to form a continuous track or a negative working layer;

when the lifting mechanism drives the track bed to a lifting state, the track is in butt joint with the fixed track to form a continuous track, and a carriage drives into the track bed along the continuous track;

the elevating system drive the ballast bed by when lifting state descends to first decline state, track and a burden working layer butt joint, the ballast bed bear in bogie that the carriage was dismantled descends to a burden working layer, the support head lifts the carriage, makes the carriage hang in along direction of height in the top of ballast bed.

2. The novel multiple unit bogie change unit as claimed in claim 1, wherein:

the supporting head walking rail is arranged below the fixed rail along the height direction;

when the lifting mechanism drives the track bed to descend from the lifting state to a second descending state, the carriage descends to a lifting state along with the track bed, and the supporting head moves along the supporting head walking rail to realize alignment with a train erecting point of the motor train unit;

the elevating system drive the track bed by when the second decline state descends to first decline state, track and burden one working layer butt joint, the track bed bear in the bogie that the carriage was dismantled descends to burden one working layer, the support head lifts the carriage, makes the carriage hang in along the direction of height in the top of track bed.

3. The novel multiple unit bogie change unit as claimed in claim 1 or 2, wherein:

the main framework comprises a support plate extending along the track direction and a support column extending along the height direction; the supporting head walking rail is arranged on the supporting plate; an accommodating groove is formed in one side, close to the carriage, of the supporting column, and the lifting mechanism is installed in the accommodating groove; the ballast bed is in concave-convex fit with the supporting columns, so that the ballast bed can slide along the height direction on the supporting columns.

4. The novel multiple unit bogie change unit as claimed in claim 1 or 2, wherein:

the track bed in orbital inboard is equipped with working channel along the automobile body height, working channel is equipped with lift platform, lift platform includes workstation and lifting mechanism, lifting mechanism drives the workstation is reciprocating motion along the automobile body direction of height.

5. The novel multiple unit bogie change unit as claimed in claim 2, wherein:

the lifting mechanism comprises a first jacking mechanism and a second jacking mechanism, and the first jacking mechanism is arranged on the second jacking mechanism, so that the second jacking mechanism can drive the first jacking mechanism to reciprocate along the height direction; the first jacking mechanism is connected with the track bed, so that the first jacking mechanism can drive the track bed to reciprocate along the height direction.