CN218287542U

CN218287542U - Cargo transfer device for carriage

Info

Publication number: CN218287542U
Application number: CN202221514502.2U
Authority: CN
Inventors: 刘至国; 阮云波; 牛胜良
Original assignee: Zhejiang Topsun Logistic Control Co Ltd
Current assignee: Zhejiang Topsun Logistic Control Co Ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2023-01-13
Anticipated expiration: 2032-06-16

Abstract

The utility model provides a goods transfer device in carriage belongs to commodity circulation conveyer technical field. It has solved the problem that prior art exists that the unloading process is troublesome, the flexibility is poor. This cargo transferring device in carriage includes a plurality of units that transfer that set up on the carriage floor, a plurality of units that transfer set up along the carriage fore-and-aft direction adjacent in proper order, every unit of transferring all includes transverse moving member and follows the carriage about the adjacent two supporting platform that set up of direction, every transverse moving member homoenergetic alone operation on transferring the unit drives the goods left or right shift, every supporting platform all includes along the adjacent action wheel base that sets up of carriage fore-and-aft direction and follows the driving wheel base, be equipped with a plurality of initiative gyro wheels on the action wheel base, be equipped with a plurality of driven gyro wheels from the driving wheel base, be equipped with respectively on every supporting platform and drive each initiative gyro wheel corotation or the reverse driving source one on the corresponding supporting platform. The utility model discloses the flexibility and the efficiency of goods unloading have been promoted greatly.

Description

Goods transfer device of carriage

Technical Field

The utility model belongs to the technical field of the commodity circulation conveyer, a goods transfer device in carriage is related to.

Background

When the goods of the truck are unloaded, the goods are generally moved away from the edge of the carriage floor by a forklift at present, so the goods need to move on the carriage floor, and the goods have large sliding friction when moving on the carriage floor, so that the moving and the positioning of large and heavy goods on the floor are very laborious and difficult, and the loading and unloading process of the traditional goods is very troublesome.

In order to solve the problems, a wheel chain hybrid type vehicle-mounted automatic loading and unloading device is disclosed (application number: CN 201920357936.8), and comprises a hidden roller supporting device, a hidden chain transmission device and a filling plate. This handling device assembles into one set of wheel chain hybrid vehicle-mounted automatic handling device through the hidden gyro wheel strutting arrangement of multiunit, hidden chain drive and infill panel, when equipment needs the during operation, makes the gas tape all rise gyro wheel and chain through on-vehicle automatic air supply to lift up the goods, the chain drives the quick business turn over carriage of goods. Although the device can make things convenient for the goods to remove in the carriage, realizes the automatic loading and unloading of goods, still there is following not enough: in general, a common carriage only has a carriage door at the tail of the carriage, and goods need to enter and exit from the carriage door at the tail. If different goods are transported in the carriage, and meanwhile, when the goods required to be unloaded are not close to the carriage door, the loading and unloading device cannot realize flexible turnover of the goods for unloading, but the goods close to the inside can be unloaded only by unloading the goods outside the carriage, so that the unloading mode is troublesome, manpower is wasted, and the operation time is long.

At present, in order to solve the problem, people usually select a carriage with a side door, and the side door is opened to realize the independent unloading of goods at different positions in the carriage; or a non-box type flat car is adopted, and then the goods at different positions in the car can be lifted out independently by using the lifting equipment, so that the goods can be unloaded.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a goods transfer device in carriage, the utility model provides a prior art is difficult to independently unload arbitrary appointed certain goods in the carriage, leads to the trouble of discharge process, the poor problem of flexibility.

The purpose of the utility model can be realized by the following technical proposal: the goods transfer device in carriage, including a plurality of transfer units that set up on the carriage floor, its characterized in that, a plurality of transfer units are adjacent setting in proper order along the carriage fore-and-aft direction, and every transfer unit all includes transverse moving member and follows the carriage about the adjacent two supporting platform that set up of direction, and every transfers transverse moving member homoenergetic alone operation on the unit and drives the goods and remove left or right, and every supporting platform all includes along the adjacent action wheel base that sets up of carriage fore-and-aft direction and follows the wheel base, be equipped with a plurality of initiative gyro wheels on the action wheel base, be equipped with a plurality of driven gyro wheels from the wheel base, the equal level setting of axial lead of initiative gyro wheel and driven gyro wheel just extends along carriage width direction, is equipped with respectively on every supporting platform and drives the driving source one that corresponds each initiative gyro wheel corotation or reversal on the supporting platform.

Goods are transported in the carriage, when unloading is needed, because the plurality of transfer units are sequentially arranged adjacently along the front and back direction of the carriage, each transfer unit comprises a transverse transfer piece and two support platforms which are adjacently arranged along the left and right direction of the carriage, the transverse transfer pieces can independently operate, so that a worker can control one of the goods to move leftwards or rightwards between the left and right support platforms, and other goods can be fixed in the process. Similarly, each supporting platform is provided with a first driving source which can drive each driving roller on the corresponding supporting platform to rotate forwards or backwards, goods on the driving rollers can move forwards or backwards along with the forward rotation and the reverse rotation of the driving rollers, and other goods can be fixed in the process. Through such design, if when needing to shift out the goods that is close to the locomotive position in with the carriage, only need remove the goods that is close to the rear of a vehicle position earlier, rely on the goods regular around in the carriage, remove about, can have enough to meet the need out the goods that is close to the locomotive position, realize the discharge of this goods. Obviously, this goods transfer device can unload arbitrary appointed certain goods in the carriage alone, has promoted flexibility and the convenience that the goods unloaded greatly.

Every supporting platform all includes along the adjacent action wheel base that sets up of carriage fore-and-aft direction and from the driving wheel base, sets up driven roller from driving on the driving wheel base, because driven roller only rotates passively, consequently need not to set up and drives each driven roller pivoted drive structure and transmission structure, consequently can reduce manufacturing cost, makes single transfer unit quality light simultaneously, and the holistic dead weight of transfer device can not occupy too many whole car gross mass, makes this transfer device have light, practical advantage.

In the cargo transferring device of the carriage, each supporting platform is provided with a lifting structure for driving each driving roller and each driven roller on the corresponding supporting platform to lift, the upper surfaces of the driving roller and the driven roller after lifting are higher than the upper surfaces of the transverse moving members, and the upper surfaces of the driving roller and the driven roller after lifting are lower than the upper surfaces of the transverse moving members. When the driving roller and the driven roller are jacked up, the upper surfaces of the driving roller and the driven roller are higher than the upper surface of the transverse conveying piece after the driving roller and the driven roller are jacked up, so that the goods are in contact with the driving roller and the driven roller and supported by the driving roller and the driven roller, and the goods can be driven to move forwards or backwards by the rotation of the driving roller and the driven roller. When the driving roller and the driven roller fall down, the upper surfaces of the driving roller and the driven roller are at a position lower than the upper surface of the transverse transfer piece, so that the goods are in contact with the transverse transfer piece and are not in contact with the driving roller and the driven roller, and the transverse transfer piece can be operated to drive the goods to move leftwards or rightwards. Through such design for the goods is when moving about, can not contact with initiative gyro wheel and driven gyro wheel, when moving back in the front simultaneously, also can not contact with horizontal transfer piece, just so can make the goods move more smoothly.

In the cargo transferring device for a carriage, the lateral moving member is a chain extending in a width direction of the carriage, and each transferring unit is provided with a second driving source for driving the chain on the corresponding transferring unit to rotate. Alternatively, the transverse transfer member may be a belt. Every transfer unit sets up driving source two, has realized that chain or belt on every transfer unit can independent operation, and the rotation of cooperation initiative gyro wheel can realize the goods in the carriage regular around, remove about for the goods homoenergetic of optional position has enough to have enough to meet the need out in the carriage.

In the goods transfer device in foretell carriage, the action wheel base all is equipped with the guide way that extends along carriage width direction from the driving wheel base on with, be equipped with in every guide way rather than forming sliding fit's crane in vertical direction, the initiative gyro wheel sets up on the crane of being connected with the action wheel base, driven roller sets up on the crane of being connected with from the driving wheel base, elevation structure is the gasbag that sets up in the tank bottom department of each guide way, the gasbag can drive the crane rise and the gasbag can also the downstream when gassing when aerifing. Through setting up the guide way, realized the installation of crane, the guide way can also lead to the lift of crane simultaneously for the stable going up and down that goes on of initiative gyro wheel and driven roller. The air bag has the advantage of light weight, and the weight of the conveying device can be reduced.

In the cargo transferring device of the above carriage, two transmission shafts are respectively disposed in each guide groove on the driving wheel base, and a roller frame is respectively disposed at two ends and a middle portion of the guide groove, a group of driving rollers disposed adjacently in front and back are disposed in each roller frame, and each driving roller disposed at the front side in each roller frame is connected to one of the transmission shafts, and each driving roller disposed at the rear side in each roller frame is connected to the other transmission shaft. The arrangement enables the supporting platform to be provided with the driving rollers which are arranged in parallel in multiple rows, the goods are supported by the driving rollers in multiple rows in the transferring process, and the stability of the goods transferring can be improved. Simultaneously, this setting makes the length of initiative gyro wheel shorter for the supporting platform quality can reduce, and then guarantees that this cargo transferring device's dead weight can not occupy too many whole car total mass, promotes this cargo transferring device's practicality. The transmission shaft has the function of realizing synchronous rotation of each driving roller on the transmission shaft.

In the goods transfer device in foretell carriage, around arbitrary adjacent action wheel base and all be equipped with the chain base of bar from between the driving wheel base, the chain base links firmly on the floor in carriage and length direction extends along carriage width direction, the both ends of chain base are equipped with driven sprocket respectively, and the both ends that all are equipped with foretell chain and chain on every chain base are equipped with respectively on the driven sprocket at chain base both ends. The chain is mounted on the chain base through the driven sprocket so that the chain can rotate, and goods placed on the chain move left or right along with the chain. The chain base of bar all is equipped with between adjacent action wheel base around wantonly and the follow driving wheel base for the front portion and the rear portion of goods receive the support of chain respectively, and then promote the goods and place the time and remove the stability of removal process.

In the cargo transferring device for the carriage, the first driving source and the second driving source are both motors, two adjacent transmission shafts on the supporting platform are in transmission connection through a synchronous chain, and the first driving source on the supporting platform can drive one of the transmission shafts on the corresponding supporting platform to rotate. Furthermore, the first driving source drives one of the transmission shafts to rotate through the worm gear mechanism, the end part of each transmission shaft is sleeved with a gear, the synchronous chains are sleeved on the two adjacent gears, and at the moment, each transmission shaft and each driving roller on the supporting platform can synchronously rotate through the action of each synchronous chain, so that the goods are driven to stably move forwards or backwards.

In the cargo transferring device of the carriage, the linkage shaft arranged along the front-rear direction of the carriage is arranged between any left and right adjacent two driving wheel bases, the front end and the rear end of the linkage shaft are respectively connected with the driving chain wheel, the chain positioned at the front side of the driving wheel base bypasses the lower side of the driving chain wheel at the front end of the linkage shaft and is meshed with the driving chain wheel, the chain positioned at the rear side of the driving wheel base bypasses the lower side of the driving chain wheel at the rear end of the linkage shaft and is meshed with the driving chain wheel, and the driving source II can drive the linkage shaft to rotate. Furthermore, the drive source two drives the linkage shaft to rotate through a worm gear mechanism. When the driving source II drives the linkage shaft to rotate, the linkage shaft drives the driving chain wheels at the two ends to rotate, and then the chains at the front side and the rear side of the driving wheel base are driven to synchronously rotate, so that goods can stably move leftwards or rightwards.

Compared with the prior art, the cargo transferring device of the carriage has the following advantages:

1. this device passes through the goods and moves about, regularly in the carriage, can unload arbitrary appointed certain goods in the carriage alone, has promoted flexibility and the efficiency that the goods was unloaded greatly.

2. When the device is used for loading and unloading goods, semi-automatic and intelligent operation can be realized, so that the device has the advantages of safety and labor saving, and is suitable for modern logistics operation.

3. Every supporting platform all includes along the adjacent action wheel base that sets up of carriage fore-and-aft direction and follows the driving wheel base, sets up driven roller from driving wheel base on, because driven roller only rotates passively, consequently need not to set up and drive each driven roller pivoted drive structure and transmission structure, consequently can reduce manufacturing cost, it is light to make an individual transfer unit quality light simultaneously, the holistic dead weight of transfer device can not occupy too many whole car gross mass, makes this transfer device have light, practical advantage.

Drawings

Fig. 1 is a schematic perspective view of the cargo transfer device.

Fig. 2 is a plan view of the cargo transferring device.

Fig. 3 is a perspective view illustrating one of the transfer units of the cargo transfer device.

Fig. 4 is a schematic view of a bottom view of one of the transfer units.

Fig. 5 is a schematic view of one of the transfer units after hiding the cover plate.

Fig. 6 is a schematic view of the connection between the second driving source and the traverse member.

Fig. 7 is an enlarged view at a in fig. 6.

Figure 8 is a cross-sectional view at the base of the capstan.

Fig. 9 is a cross-sectional view at the base of the driven wheel.

In the figure, 1, a transfer unit; 2. a lateral moving member; 3. a support platform; 31. a driving wheel base; 32. a driven wheel base; 33. a guide groove; 34. a lifting frame; 35. a cover plate; 36. a roller frame; 4. a driving roller; 5. a driven roller; 6. a first driving source; 7. a worm and gear mechanism; 8. a second driving source; 9. an air bag; 10. a drive shaft; 11. a chain base; 12. a driven sprocket; 13. a synchronization chain; 14. a linkage shaft; 15. driving the sprocket.

Detailed Description

The following is a detailed embodiment of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to this embodiment.

Example one

As shown in fig. 1 and 2, the cargo transferring apparatus for a car includes four transferring units 1 disposed on a floor of the car, the four transferring units 1 are sequentially disposed adjacent to each other in a front-rear direction of the car, and each transferring unit 1 includes a lateral moving member 2 and two supporting platforms 3 disposed adjacent to each other in a left-right direction of the car. In the actual manufacturing process, the number of transfer units 1, such as three, five, six, etc., may be increased or decreased as appropriate depending on the length of the car. Combine as shown in fig. 3, every horizontal migration spare 2 homoenergetic on transferring unit 1 is the independent operation and drives the goods and remove left or right, every supporting platform 3 all includes along the adjacent action wheel base 31 that sets up of carriage fore-and-aft direction and follows the driving wheel base 32, be equipped with a plurality of initiative gyro wheel 4 on the action wheel base 31, be equipped with a plurality of driven gyro wheel 5 on the driving wheel base 32, the equal level setting of axial lead of initiative gyro wheel 4 and driven gyro wheel 5 just extends along carriage width direction, be equipped with respectively on every supporting platform 3 and drive the driving source 6 that each initiative gyro wheel 4 corotation or reversal on the corresponding supporting platform 3. The driven wheel base 32 close to the tail part of the vehicle is narrow in width, two rows of driven rollers 5 are arranged, and four rows of driven rollers 5 are arranged on other driven wheel bases 32.

As shown in fig. 3 to 6, the lateral moving members 2 are chains extending in the width direction of the carriage, each transfer unit 1 is provided with a second driving source 8 for driving the chains on the corresponding transfer unit 1 to rotate, and the first driving source 6 and the second driving source 8 are both motors. Alternatively, the transverse displacement element may be a belt. Every transfer unit 1 sets up driving source two 8, has realized that chain or belt on every transfer unit 1 can independent operation, and the rotation of cooperation initiative gyro wheel 4 can realize the goods in the carriage regular around, remove about for the goods homoenergetic of optional position has enough to have enough to meet the need out in the carriage.

As shown in fig. 8 and 9, each supporting platform 3 is provided with a lifting structure for driving each driving roller 4 and each driven roller 5 on the corresponding supporting platform 3 to lift, the upper surfaces of the driving roller 4 and each driven roller 5 after lifting are higher than the upper surface of the transverse moving member 2, and the upper surfaces of the driving roller 4 and each driven roller 5 after lifting are lower than the upper surface of the transverse moving member 2. Through the design, when moving left and right, the goods can not contact with the driving roller 4 and the driven roller 5, and simultaneously when moving front and back, the goods can not contact with the transverse transfer piece, so that the goods can move more smoothly.

Specifically, as shown in fig. 8 and 9, the driving wheel base 31 and the driven wheel base 32 are respectively provided with a guide groove 33 extending along the width direction of the carriage and a cover plate 35 covering the top of the guide groove 33, each guide groove 33 is internally provided with a lifting frame 34 which is in sliding fit with the guide groove in the vertical direction, the driving roller 4 is arranged on the lifting frame 34 connected with the driving wheel base 31, the driven roller 5 is arranged on the lifting frame 34 connected with the driven wheel base 32, the lifting structure is an air bag 9 arranged at the groove bottom of each guide groove 33, and the lifting frame 34 can be driven to ascend when the air bag 9 is inflated and can also move downwards when the air bag 9 is deflated. Through setting up guide way 33, realized crane 34's installation, guide way 33 can also lead crane 34's lift simultaneously for driving roller 4 and driven roller 5 are stable goes up and down. The air bag 9 has an advantage of light weight, and the weight of the transfer device can be reduced.

As shown in fig. 5, two transmission shafts 10 are respectively disposed in each guide groove 33 on the drive wheel base 31, and a roller frame 36 is respectively disposed at both ends and the middle part of the guide groove 33, a set of driving rollers 4 disposed adjacently in front and back is disposed in each roller frame 36, and each driving roller 4 disposed at the front side in each roller frame 36 is connected to one of the transmission shafts 10, and each driving roller 4 disposed at the rear side in each roller frame 36 is connected to the other transmission shaft 10. Such setting makes the last initiative gyro wheel 4 that forms multiseriate parallel arrangement of supporting platform 3, and the goods is transferred the process and is received multiseriate initiative gyro wheel 4's support, can promote the stability that the goods was transferred.

As shown in fig. 5, a gear is sleeved on an end of each transmission shaft 10, two adjacent transmission shafts 10 on the supporting platform 3 are in transmission connection through a synchronization chain 13, the synchronization chain 13 is sleeved on the two adjacent gears, and the first driving source 6 on each supporting platform 3 can drive one of the transmission shafts 10 on the supporting platform 3 to rotate. The first driving source 6 drives one of the transmission shafts 10 to rotate through the worm and gear mechanism 7, and at the moment, each transmission shaft 10 and each driving roller 4 on the supporting platform 3 can synchronously rotate through the action of each synchronous chain 13, so that the goods are driven to stably move forwards or backwards.

As shown in fig. 1, 2 and 6, a bar-shaped chain base 11 is arranged between any front and back adjacent driving wheel bases 31 and driven wheel bases 32, the chain base 11 is fixedly connected to the floor of the carriage and extends along the width direction of the carriage, driven sprockets 12 are arranged at two ends of the chain base 11 respectively, and the two ends of each chain base 11, which are provided with the chain, are respectively sleeved on the driven sprockets 12 at two ends of the chain base 11. As shown in fig. 7, a linkage shaft 14 arranged along the front-rear direction of the carriage is arranged between any two drive wheel bases 31 adjacent to each other on the left and right, the front end and the rear end of the linkage shaft 14 are respectively connected with a drive sprocket 15, a chain positioned on the front side of the drive wheel base 31 bypasses the lower side of the drive sprocket 15 on the front end of the linkage shaft 14 and is meshed with the drive sprocket 15, a chain positioned on the rear side of the drive wheel base 31 bypasses the lower side of the drive sprocket 15 on the rear end of the linkage shaft 14 and is meshed with the drive sprocket 15, and a second drive source 8 can drive the linkage shaft 14 to rotate. Furthermore, the second driving source 8 drives the linkage shaft 14 to rotate through the worm gear mechanism 7. When the driving source II 8 drives the linkage shaft 14 to rotate, the linkage shaft 14 drives the driving chain wheels at the two ends to rotate, and further drives the chains at the front side and the rear side of the driving wheel base 31 to synchronously rotate, so that goods can stably move leftwards or rightwards.

Goods are put in the carriage and transported, when needing to unload, because a plurality of transfer units 1 are adjacent setting in proper order along the carriage fore-and-aft direction, and every transfer unit 1 all includes horizontal transfer piece and along the carriage about adjacent two supporting platform 3 that set up, horizontal transfer piece can independent operation for the staff can control wherein a certain goods and control about between two supporting platform 3 left or right move, and other goods of this in-process can be motionless. Similarly, each support platform 3 is provided with a first driving source 6, and the first driving source 6 can drive each driving roller 4 on the corresponding support platform 3 to rotate forwards or backwards, so that the goods on the driving rollers 4 can move forwards or backwards along with the forward rotation and the reverse rotation of the driving rollers 4, and other goods can be fixed in the process. Through such design, if when needing to shift out the goods that is close to the locomotive position in with the carriage, only need remove the goods that is close to the rear of a vehicle position earlier, rely on the goods regular around in the carriage, remove about, can have enough to meet the need out the goods that is close to the locomotive position, realize the discharge of this goods. Obviously, this goods transfer device can unload arbitrary appointed certain goods in the carriage alone, has promoted flexibility and the convenience that the goods was unloaded greatly.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although 1, transfer unit is used more herein; 2. a lateral moving member; 3. a support platform; 31. a driving wheel base; 32. a driven wheel base; 33. a guide groove; 34. a lifting frame; 35. a cover plate; 36. a roller frame; 4. a driving roller; 5. a driven roller; 6. a first driving source; 7. a worm and gear mechanism; 8. a second driving source; 9. an air bag; 10. a drive shaft; 11. a chain base; 12. a driven sprocket; 13. a synchronization chain; 14. a linkage shaft; 15. drive sprocket, etc., without excluding the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any one of the additional limitations of the present invention.

Claims

1. The goods transfer device in carriage, including a plurality of transfer units (1) that set up on the carriage floor, its characterized in that, a plurality of transfer units (1) are adjacent setting in proper order along the carriage fore-and-aft direction, and every transfer unit (1) all includes lateral shifting member (2) and along the carriage left and right sides adjacent two supporting platform (3) that set up, and lateral shifting member (2) homoenergetic alone run on every transfer unit (1) drives the goods and moves left or right, and every supporting platform (3) all includes along the adjacent action wheel base (31) that sets up of carriage fore-and-aft direction and follow driving wheel base (32), be equipped with a plurality of initiative gyro wheel (4) on action wheel base (31), be equipped with a plurality of driven gyro wheel (5) on following driving wheel base (32), the equal level setting of axial lead of initiative gyro wheel (4) and driven gyro wheel (5) just extends along carriage width direction, is equipped with respectively on every supporting platform (3) and drives the driving source (6) that correspond each initiative gyro wheel (4) or corotation on supporting platform (3) or corotation.

2. The cargo transferring apparatus for vehicle bodies according to claim 1, wherein each supporting platform (3) is provided with a lifting structure for driving each driving roller (4) and each driven roller (5) of the corresponding supporting platform (3) to lift, the driving roller (4) and each driven roller (5) have upper surfaces higher than the upper surface of the lateral moving member (2) after lifting, and the driving roller (4) and each driven roller (5) have upper surfaces lower than the upper surface of the lateral moving member (2) after lowering.

3. The cargo transferring apparatus of a carriage as defined in claim 1 or 2, wherein the lateral moving members (2) are chains extending in the width direction of the carriage, and each transferring unit (1) is provided with a second driving source (8) for driving the chains of the corresponding transferring unit (1) to rotate.

4. The cargo transferring device of the car as defined in claim 2, wherein the driving wheel base (31) and the driven wheel base (32) are provided with guide grooves (33) extending along the width direction of the car, each guide groove (33) is provided with a lifting frame (34) in a sliding fit with the guide groove in the vertical direction, the driving roller (4) is arranged on the lifting frame (34) connected with the driving wheel base (31), and the driven roller (5) is arranged on the lifting frame (34) connected with the driven wheel base (32).

5. The cargo transferring apparatus of a vehicle body as defined in claim 4, wherein the elevating means is an air bag (9) provided at a bottom of each guide groove (33), and the elevating frame (34) is capable of being lifted by the air bag (9) when the air bag (9) is inflated and the elevating frame (34) is capable of moving downward when the air bag (9) is deflated.

6. The cargo transfer device for vehicle bodies according to claim 4, wherein two driving shafts (10) are provided in each guide groove (33) of said driving wheel base (31), and each of both ends and a middle portion of said guide groove (33) is provided with a roller frame (36), each roller frame (36) is provided with a set of driving rollers (4) disposed adjacently at the front and rear, and each driving roller (4) disposed at the front side in each roller frame (36) is connected to one of said driving shafts (10), and each driving roller (4) disposed at the rear side in each roller frame (36) is connected to the other driving shaft (10).

7. The cargo transferring device for the carriage as claimed in claim 3, wherein a strip-shaped chain base (11) is disposed between any front and rear adjacent driving wheel base (31) and driven wheel base (32), the chain base (11) is fixedly connected to the floor of the carriage and extends along the width direction of the carriage, driven sprockets (12) are disposed at two ends of the chain base (11), the chain is disposed on each chain base (11), and the two ends of the chain are respectively sleeved on the driven sprockets (12) at two ends of the chain base (11).

8. The cargo transferring device for vehicle body of claim 6, wherein two adjacent transmission shafts (10) of the supporting platform (3) are in transmission connection with each other through a synchronous chain (13), and the driving source I (6) of the supporting platform (3) can drive one of the transmission shafts (10) of the corresponding supporting platform (3) to rotate.

9. The cargo transferring device for the carriage as recited in claim 7, wherein a linkage shaft (14) is disposed between any two driving wheel bases (31) adjacent to each other in the left-right direction, the front end and the rear end of the linkage shaft (14) are respectively connected with a driving sprocket (15), a chain disposed at the front side of the driving wheel base (31) passes by the lower side of the driving sprocket (15) at the front end of the linkage shaft (14) and is engaged with the driving sprocket (15), a chain disposed at the rear side of the driving wheel base (31) passes by the lower side of the driving sprocket (15) at the rear end of the linkage shaft (14) and is engaged with the driving sprocket (15), and the driving source two (8) can drive the linkage shaft (14) to rotate.

10. The cargo transferring apparatus for vehicle body according to claim 3, wherein the first driving source (6) and the second driving source (8) are both motors.