CN210882195U

CN210882195U - Motorized transfer trolley for slender revolving body

Info

Publication number: CN210882195U
Application number: CN201921759693.7U
Authority: CN
Inventors: 李晓峰; 康新华; 康宝臣; 杨秀芳; 冯丽娜; 邓亚军; 薛宏宾; 李伟
Original assignee: Shanxi Fenxi Heavy Industry Co Ltd
Current assignee: Shanxi Fenxi Heavy Industry Co Ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-06-30
Anticipated expiration: 2029-10-21

Abstract

The utility model discloses a motor-driven transfer car (buggy) of long and thin solid of revolution, current transfer car (buggy) have the problem of the poor and easy damage product of safety and stability when transporting the long and thin solid of revolution. Four omnidirectional wheel mechanisms (52) are arranged on a frame chassis (51) of the rectangular transfer vehicle, and the rectangular transfer vehicle comprises two groups of X-shaped lifting forks lifting up and down in the vertical direction and a four-bar linkage mechanism arranged in the horizontal direction, when a lead screw (30) is rotated clockwise through a lead screw rotating handle (33), a front nut (28) and a rear nut (29) can move reversely on the lead screw (30), the front diagonal line and the rear diagonal line of the four-bar linkage mechanism consisting of a left front horizontal pull rod (24), a left rear horizontal pull rod (25), a right front horizontal pull rod (26) and a right rear horizontal pull rod (27) can be lengthened, the left diagonal line and the right diagonal line of the four-bar linkage mechanism can be shortened, and at least two groups of table-board clamping product transfer mechanisms are arranged on a table board, so that clamping of irregular rotary bodies on different positions can be conveniently carried.

Description

Motorized transfer trolley for slender revolving body

Technical Field

The invention relates to a transfer device, in particular to a transfer trolley for transferring elongated rotary body products from a production line to a storage shelf or large-scale transportation equipment.

Background

After being formed on a processing production line, an elongated revolving body, such as an underwater vehicle shell, needs to be moved from the production line to a transfer trolley and transferred to a large-scale transport vehicle or a goods shelf by the transfer trolley for storage; in the prior art, the transportation of the slender revolving body is generally completed by two independent transport vehicles, and the process is as follows: firstly, two independent transfer vehicles are arranged beside a processing production line, a rack on the two transfer vehicles is operated to be lifted to the height of the processing production line of the slender revolving body, the slender revolving body which is processed and formed is translated to two transport vehicles to be fixed, then the two transfer vehicles are operated simultaneously to transfer the slender revolving body product to the transport vehicles or the side of a goods shelf, the rack on the two vehicles is operated simultaneously again to be lifted to the height of the goods shelf or the height of the transport vehicles, and the revolving body is translated to the goods shelf or the transport vehicles. Because the slender revolving body product has the characteristics of longer length and the center of gravity usually deviated from the central position, the accidents of center of gravity deviation and inclined turning of the transfer vehicle are easy to occur when the slender revolving body is carried by two transfer vehicles; when the racks on the two transfer vehicles are operated to lift, the problem that the racks are not lifted synchronously often exists, the long and thin products are easy to incline and damage, and the technical problem which needs to be solved on site is solved by how to solve the problem that the two support racks lift synchronously. The profile of some slender rotator shells is irregular, the bending rigidity is very poor, and how to conveniently and stably support the slender rotator shells on a transfer trolley is also a technical problem to be solved on site. In addition, the lifting platform operating mechanism of the existing transfer vehicle is arranged separately from the lifting platform, operators need to be configured on the vehicle and off the vehicle respectively during operation, manpower cost is wasted, how to realize that lifting operation and product transfer are completed simultaneously by the personnel on the vehicle is also a technical problem existing on site.

Disclosure of Invention

The invention provides a motorized transfer vehicle for a slender revolving body, which solves the technical problems of poor safety and stability and easy product damage of the conventional transfer vehicle during the transfer of the slender revolving body.

The invention solves the technical problems by the following technical scheme:

a slender revolving body motor-driven transfer vehicle comprises a rectangular transfer vehicle frame chassis, four omnidirectional wheel mechanisms are arranged on the rectangular transfer vehicle frame chassis, a rectangular bottom frame is fixedly arranged on the rectangular transfer vehicle frame chassis, a left front X-shaped lifting fork front lower guide rail, a left rear X-shaped lifting fork rear lower guide rail, a right front X-shaped lifting fork front lower guide rail and a right rear X-shaped lifting fork rear lower guide rail are respectively arranged on the rectangular bottom frame, a left front X-shaped lifting fork is arranged on the left front X-shaped lifting fork front lower guide rail, a left rear X-shaped lifting fork is arranged on the left rear X-shaped lifting fork rear lower guide rail, a right front X-shaped lifting fork is arranged on the right front X-shaped lifting fork front lower guide rail, a left central hinge pin shaft is connected at the central hinge joint of the left front X-shaped lifting fork and the central hinge joint of the left rear X-shaped lifting fork, a right central hinge pin shaft is connected between the central hinge position of the right front X-shaped lifting fork and the central hinge position of the right rear X-shaped lifting fork, a left side hinge connecting rod is movably hinged between the right top foot of the left front X-shaped lifting fork and the right top foot of the left rear X-shaped lifting fork, a left movable sleeve is movably sleeved on the left side hinge connecting rod, a left side hinge seat is arranged on the outer wall of the right side of the left movable sleeve, and a right side hinge seat is arranged on the outer wall of the left side of the right movable sleeve; a right hinged connecting rod is movably hinged between a left top foot of the right front X-shaped lifting fork and a left top foot of the right rear X-shaped lifting fork, a right movable sleeve is movably sleeved on the right hinged connecting rod, a screw rod is arranged between the left movable sleeve and the right movable sleeve, a clockwise thread is arranged at the front part of the screw rod, an anticlockwise thread is arranged at the rear part of the screw rod, a front nut is screwed on the clockwise thread of the screw rod, and a rear nut is screwed on the anticlockwise thread of the screw rod; the left end of the left front horizontal pull rod is hinged on the left side hinge seat, the right end of the left front horizontal pull rod is hinged on the left outer side wall of the front nut, the left end of the left rear horizontal pull rod is hinged on the left side hinge seat, and the right end of the left rear horizontal pull rod is hinged on the left outer side wall of the rear nut; the right end of the right front horizontal pull rod is hinged to the right side hinge seat, the left end of the right front horizontal pull rod is hinged to the right outer side wall of the front nut, the right end of the right rear horizontal pull rod is hinged to the right side hinge seat, and the left end of the right rear horizontal pull rod is hinged to the right outer side wall of the rear nut; the front end of the screw is provided with a screw front end supporting bearing, the screw front end supporting bearing is hung and connected on the lower bottom surface of a front cross beam of the rectangular long bedplate, the rear end of the screw is provided with a screw rear end supporting bearing, the screw rear end supporting bearing is hung and connected on the lower bottom surface of a rear cross beam of the rectangular long bedplate frame, the front end of the screw is connected with a screw rotating handle, and the rectangular long bedplate is provided with a bedplate.

The left foot end of the left front X-shaped lifting fork is hinged with the left end of the front lower guide rail of the left front X-shaped lifting fork through a left front lower pin shaft, the right foot end of the left front X-shaped lifting fork is movably arranged on the front lower guide rail of the left front X-shaped lifting fork through a right front lower roller, the left foot end of the left front X-shaped lifting fork is hinged with the front upper guide rail of the left front X-shaped lifting fork on the rectangular long table board through a left front upper pin shaft, and the right foot end of the left front X-shaped lifting fork is movably abutted to the front upper guide rail of the left front X-shaped lifting fork through a right front upper roller; a left rear X-shaped lifting fork is arranged between a rear lower guide rail of the left rear X-shaped lifting fork on the rectangular bottom frame and a rear upper guide rail of the left rear X-shaped lifting fork on the rectangular long table plate; a right front X-shaped lifting fork is arranged between a front lower guide rail of the right front X-shaped lifting fork on the rectangular bottom frame and a front upper guide rail of the right front X-shaped lifting fork on the rectangular long bedplate, a right rear X-shaped lifting fork is arranged between a right rear X-shaped lifting fork rear lower guide rail on the rectangular bottom frame and a right rear X-shaped lifting fork rear upper guide rail on the rectangular long bedplate, the structure of the left front X-shaped lifting fork, the structure of the left rear X-shaped lifting fork, the structure of the right front X-shaped lifting fork and the structure of the right rear X-shaped lifting fork are the same, a screw rod supporting bearing fixing frame is arranged in the middle of the rectangular long bedplate frame, a screw rod front end supporting bearing seat plate and a screw rod rear end supporting bearing seat plate are respectively arranged on the screw rod supporting bearing fixing frame, the screw front end supporting bearing seat plate is provided with a screw front end supporting bearing, and the screw rear end supporting bearing seat plate is provided with a screw rear end supporting bearing; a left front upper horizontal guide rail, a left rear upper horizontal guide rail, a right front upper horizontal guide rail and a left rear upper horizontal guide rail are respectively arranged on the rectangular long bedplate frame, a right front upper roller is abutted on the left front upper horizontal guide rail, a right rear upper roller on the left rear X-shaped lifting fork is abutted on the left rear upper horizontal guide rail, a left front upper roller on the right front X-shaped lifting fork is abutted on the right front upper horizontal guide rail, and a left rear upper roller on the right rear X-shaped lifting fork is abutted on the left rear upper horizontal guide rail; a left lower connecting rod is arranged between the right bottom foot of the left front X-shaped lifting fork and the right bottom foot of the left rear X-shaped lifting fork, and a right lower connecting rod is arranged between the left bottom foot of the right front X-shaped lifting fork and the left bottom foot of the right rear X-shaped lifting fork.

A table board is arranged on the top end surface of the rectangular long table board frame, a front-back direction parallel guide rail is arranged on the table board, a front slide block and a rear slide block are movably arranged on the parallel guide rail in the front-rear direction, a carrier roller position adjusting screw rod is connected between the front slide block and the rear slide block in a penetrating way, the front part of the carrier roller position adjusting screw rod is provided with a clockwise thread, the rear part of the carrier roller position adjusting screw rod is provided with a counter-clockwise thread, the front slide block is screwed on the clockwise thread on the carrier roller position adjusting screw rod, the rear slide block is screwed on the counter-clockwise thread on the carrier roller position adjusting screw rod, a bearing support frame at the front end of the carrier roller position adjusting screw rod is arranged at the front end of the parallel guide rail in the front and back directions, a bearing support frame at the rear end of the carrier roller position adjusting screw rod is arranged at the rear end of the front and rear direction parallel guide rail, and a hand wheel is connected at the front end of the carrier roller position adjusting screw rod; a front carrier roller is fixedly arranged on the top surface of the front sliding block, and a rear carrier roller is fixedly arranged on the top surface of the rear sliding block.

The invention realizes that the lifting operation and the product transfer are simultaneously completed by personnel on the vehicle, and the clamping fixation can be conveniently realized for the revolving body with irregular outline of the shell of the slender revolving body and poor bending rigidity, thereby reducing the breakage rate in the transferring process; the synchronous lifting of the two groups of X-shaped lifting forks is realized, the long bedplate connected with the tops of the two groups of X-shaped lifting forks in a jacking mode is stably, conveniently and synchronously lifted under the manual operation, the long and thin products placed on the long bedplate are prevented from inclining, and the damage of the long and thin products is avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the table top clamping product transferring mechanism of the present invention;

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

fig. 4 is a schematic view of the lifting mechanism of the present invention in a front-down direction;

FIG. 5 is a connection diagram of two sets of X-shaped lifting forks, a four-bar linkage mechanism and a lead screw operating mechanism of the present invention;

fig. 6 is a schematic structural view of a rectangular long deck frame 37 of the present invention.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings:

a slender revolving body motor-driven transfer vehicle comprises a rectangular transfer vehicle frame chassis 51, four omnidirectional wheel mechanisms 52 are arranged on the rectangular transfer vehicle frame chassis 51, a rectangular bottom frame 1 is fixedly arranged on the rectangular transfer vehicle frame chassis 51, a left front X-shaped lifting fork front lower guide rail 2, a left rear X-shaped lifting fork rear lower guide rail 3, a right front X-shaped lifting fork front lower guide rail 4 and a right rear X-shaped lifting fork rear lower guide rail 5 are respectively arranged on the rectangular bottom frame 1, a left front X-shaped lifting fork 6 is arranged on the left front X-shaped lifting fork front lower guide rail 2, a left rear X-shaped lifting fork 11 is arranged on the left rear X-shaped lifting fork rear lower guide rail 3, a right front X-shaped lifting fork 12 is arranged on the right front X-shaped lifting fork front lower guide rail 4, a right rear X-shaped lifting fork 13 is arranged on the right rear X-shaped lifting fork rear lower guide rail 5, a left central hinge pin 14 is connected at the central hinge of the left front X-shaped lifting fork 6 and the central hinge of the left rear X-shaped lifting fork 11, a right central hinge pin 18 is connected at the central hinge position of the right front X-shaped lifting fork 12 and the central hinge position of the right rear X-shaped lifting fork 13, a left side hinge connecting rod 15 is movably hinged between the right top foot of the left front X-shaped lifting fork 6 and the right top foot of the left rear X-shaped lifting fork 11, a left movable sleeve 17 is movably sleeved on the left side hinge connecting rod 15, a left side hinge seat 21 is arranged on the outer wall of the right side of the left movable sleeve 17, and a right side hinge seat 23 is arranged on the outer wall of the left side of the right movable sleeve 22; a right hinged connecting rod 19 is movably hinged between the left top leg of the right front X-shaped lifting fork 12 and the left top leg of the right rear X-shaped lifting fork 13, a right movable sleeve 22 is movably sleeved on the right hinged connecting rod 19, a lead screw 30 is arranged between the left movable sleeve 17 and the right movable sleeve 22, a clockwise thread is arranged at the front part of the lead screw 30, an anticlockwise thread is arranged at the rear part of the lead screw 30, a front nut 28 is screwed on the clockwise thread of the lead screw 30, and a rear nut 29 is screwed on the anticlockwise thread of the lead screw 30; the left end of the left front horizontal pull rod 24 is hinged on the left side hinge seat 21, the right end of the left front horizontal pull rod 24 is hinged on the left outer side wall of the front nut 28, the left end of the left rear horizontal pull rod 25 is hinged on the left side hinge seat 21, and the right end of the left rear horizontal pull rod 25 is hinged on the left outer side wall of the rear nut 29; the right end of the right front horizontal pull rod 26 is hinged on the right side hinge seat 23, the left end of the right front horizontal pull rod 26 is hinged on the right outer side wall of the front nut 28, the right end of the right rear horizontal pull rod 27 is hinged on the right side hinge seat 23, and the left end of the right rear horizontal pull rod 27 is hinged on the right outer side wall of the rear nut 29; a screw front end support bearing 31 is provided at the front end of the screw 30, the screw front end support bearing 31 is suspended on the lower bottom surface of the front beam of the rectangular long platen 37, a screw rear end support bearing 32 is provided at the rear end of the screw 30, the screw rear end support bearing 32 is suspended on the lower bottom surface of the rear beam of the rectangular long platen frame 37, a screw rotary handle 33 is connected to the front end of the screw 30, and a platen 42 is provided on the rectangular long platen 37.

The left foot of the left front X-shaped lifting fork 6 is hinged with the left end of the left front X-shaped lifting fork front lower guide rail 2 through a left front lower pin shaft 7, the right foot end of the left front X-shaped lifting fork 6 is movably arranged on the left front X-shaped lifting fork front lower guide rail 2 through a right front lower roller 9, the left top foot end of the left front X-shaped lifting fork 6 is hinged with the left front X-shaped lifting fork front upper guide rail 38 on the rectangular long bedplate 37 through a left front upper pin shaft 8, and the right top foot end of the left front X-shaped lifting fork 6 is movably propped on the left front X-shaped lifting fork front upper guide rail 38 through a right front upper roller 10; a left rear X-shaped lifting fork 11 is arranged between the left rear X-shaped lifting fork rear lower guide rail 3 on the rectangular bottom frame 1 and the left rear X-shaped lifting fork rear upper guide rail 39 on the rectangular long bedplate 37; a right front X-shaped lifting fork 12 is arranged between a right front X-shaped lifting fork front lower guide rail 4 on the rectangular bottom frame 1 and a right front X-shaped lifting fork front upper guide rail 41 on the rectangular long bedplate 37, a right rear X-shaped lifting fork 13 is arranged between a right rear X-shaped lifting fork rear lower guide rail 5 on the rectangular bottom frame 1 and a right rear X-shaped lifting fork rear upper guide rail 40 on the rectangular long bedplate 37, the structure of the left front X-shaped lifting fork 6, the structure of the left rear X-shaped lifting fork 11, the structure of the right front X-shaped lifting fork 12 and the structure of the right rear X-shaped lifting fork 13 are the same, a lead screw supporting bearing fixing frame 36 is arranged in the middle of the rectangular long bedplate frame 37, a lead screw front end supporting bearing seat plate 34 and a lead screw rear end supporting bearing seat plate 35 are respectively arranged on the lead screw supporting bearing fixing frame 36, a lead screw front end supporting bearing is arranged on the lead screw front end supporting bearing seat plate 34, the screw rear end support bearing seat plate 35 is provided with a screw rear end support bearing; a left front upper horizontal guide rail 38, a left rear upper horizontal guide rail 39, a right front upper horizontal guide rail 41 and a left rear upper horizontal guide rail 40 are respectively arranged on the rectangular long bedplate frame 37, the right front upper roller 10 is abutted on the left front upper horizontal guide rail 38, the right rear upper roller on the left rear X-shaped lifting fork 11 is abutted on the left rear upper horizontal guide rail 39, the left front upper roller on the right front X-shaped lifting fork 12 is abutted on the right front upper horizontal guide rail 41, and the left rear upper roller on the right rear X-shaped lifting fork 13 is abutted on the left rear upper horizontal guide rail 40; a left lower connecting rod 16 is arranged between the right foot of the left front X-shaped lifting fork 6 and the right foot of the left rear X-shaped lifting fork 11, and a right lower connecting rod 20 is arranged between the left foot of the right front X-shaped lifting fork 12 and the left foot of the right rear X-shaped lifting fork 13.

A table board 42 is arranged on the top end face of the rectangular long table frame 37, a front-back direction parallel guide rail 43 is arranged on the table board 42, a front slide block 46 and a back slide block 47 are movably arranged on the front-back direction parallel guide rail 43, a carrier roller position adjusting screw 48 is connected between the front slide block 46 and the back slide block 47 in a penetrating way, a clockwise thread is arranged at the front part of the carrier roller position adjusting screw 48, an anticlockwise thread is arranged at the back part of the carrier roller position adjusting screw 48, the front slide block 46 is screwed on the clockwise thread on the carrier roller position adjusting screw 48, the back slide block 47 is screwed on the anticlockwise thread on the carrier roller position adjusting screw 48, a carrier roller position adjusting screw front end bearing support frame 44 is arranged at the front end of the front-back direction parallel guide rail 43, a carrier roller position adjusting screw back end bearing support frame 45 is arranged at the back end of the front-back direction parallel guide, the front end of the carrier roller position adjusting screw 48 is connected with a hand wheel; a front carrier roller 49 is fixedly arranged on the top surface of the front sliding block 46, and a rear carrier roller 50 is fixedly arranged on the top surface of the rear sliding block 47; at least two groups of table top clamping product transferring mechanisms are arranged on the table top plate 42, so that clamping of the irregular revolving body on different parts is facilitated, and the irregular revolving body is stable in the transportation process.

When the screw rod 30 is rotated clockwise through the screw rod rotating handle 33, the front nut 28 and the rear nut 29 move reversely on the screw rod 30, the front diagonal line and the rear diagonal line of the four-bar linkage mechanism consisting of the left front horizontal pull rod 24, the left rear horizontal pull rod 25, the right front horizontal pull rod 26 and the right rear horizontal pull rod 27 are lengthened, the left diagonal line and the right diagonal line of the four-bar linkage mechanism are shortened, the four-bar linkage mechanism pulls the left movable sleeve 17 and the right movable sleeve 22 towards the middle, the upper fork opening and the lower fork opening of the two groups of X-shaped lifting forks are widened, so that the rectangular long platen frames 37 at the tops of the two groups of X-shaped lifting forks synchronously and stably descend, and due to the locking function of the screw rod, when the screw rod rotating handle 33 stops rotating, the rectangular long platen frames 37 stop at; when the screw rod 30 is rotated counterclockwise by the screw rod rotating handle 33, the front nut 28 and the rear nut 29 move on the screw rod 30 in opposite directions, the front diagonal line and the rear diagonal line of the four-bar linkage mechanism formed by the left front horizontal pull rod 24, the left rear horizontal pull rod 25, the right front horizontal pull rod 26 and the right rear horizontal pull rod 27 are shortened, the left diagonal line and the right diagonal line of the four-bar linkage mechanism are lengthened, the four-bar linkage mechanism pushes the left movable sleeve 17 and the right movable sleeve 22 to the left and the right sides, the upper fork opening and the lower fork opening of the two groups of X-shaped lifting forks are shortened, and the rectangular long platen frames 37 at the tops of the two groups of X-shaped lifting forks synchronously.

Claims

1. A slender revolving body motor-driven transfer vehicle comprises a rectangular transfer vehicle frame chassis (51), wherein four omnidirectional wheel mechanisms (52) are arranged on the rectangular transfer vehicle frame chassis (51), and is characterized in that a rectangular bottom frame (1) is fixedly arranged on the rectangular transfer vehicle frame chassis (51), a left front X-shaped lifting fork front lower guide rail (2), a left rear X-shaped lifting fork rear lower guide rail (3), a right front X-shaped lifting fork front lower guide rail (4) and a right rear X-shaped lifting fork rear lower guide rail (5) are respectively arranged on the rectangular bottom frame (1), a left front X-shaped lifting fork (6) is arranged on the left front X-shaped lifting fork front lower guide rail (2), a left rear X-shaped lifting fork (11) is arranged on the left rear X-shaped lifting fork rear lower guide rail (3), a right front X-shaped lifting fork (12) is arranged on the right front X-shaped lifting fork front lower guide rail (4), a right rear X-shaped lifting fork (13) is arranged on a rear lower guide rail (5) of the right rear X-shaped lifting fork, a left center hinge pin (14) is connected with a center hinge joint of the left front X-shaped lifting fork (6) and a center hinge joint of the left rear X-shaped lifting fork (11), a right center hinge pin (18) is connected with a center hinge joint of the right front X-shaped lifting fork (12) and a center hinge joint of the right rear X-shaped lifting fork (13), a left hinge connecting rod (15) is movably hinged between a right top foot of the left front X-shaped lifting fork (6) and a right top foot of the left rear X-shaped lifting fork (11), a left movable sleeve (17) is movably sleeved on the left hinge connecting rod (15), a left hinge seat (21) is arranged on the outer wall of the right side of the left movable sleeve (17), and a right hinge seat (23) is arranged on the outer wall of the left side of the right movable sleeve (22); a right hinged connecting rod (19) is movably hinged between the left top foot of the right front X-shaped lifting fork (12) and the left top foot of the right rear X-shaped lifting fork (13), a right movable sleeve (22) is movably sleeved on the right hinged connecting rod (19), a lead screw (30) is arranged between the left movable sleeve (17) and the right movable sleeve (22), a clockwise thread is arranged at the front part of the lead screw (30), an anticlockwise thread is arranged at the rear part of the lead screw (30), a front nut (28) is screwed on the clockwise thread of the lead screw (30), and a rear nut (29) is screwed on the anticlockwise thread of the lead screw (30); the left end of a left front horizontal pull rod (24) is hinged on the left side hinge seat (21), the right end of the left front horizontal pull rod (24) is hinged on the left outer side wall of the front nut (28), the left end of a left rear horizontal pull rod (25) is hinged on the left side hinge seat (21), and the right end of the left rear horizontal pull rod (25) is hinged on the left outer side wall of the rear nut (29); the right end of the right front horizontal pull rod (26) is hinged on the right side hinge seat (23), the left end of the right front horizontal pull rod (26) is hinged on the right outer side wall of the front nut (28), the right end of the right rear horizontal pull rod (27) is hinged on the right side hinge seat (23), and the left end of the right rear horizontal pull rod (27) is hinged on the right outer side wall of the rear nut (29); the front end of the lead screw (30) is provided with a lead screw front end supporting bearing (31), the lead screw front end supporting bearing (31) is hung on the lower bottom surface of a front cross beam of the rectangular long bedplate (37), the rear end of the lead screw (30) is provided with a lead screw rear end supporting bearing (32), the lead screw rear end supporting bearing (32) is hung on the lower bottom surface of a rear cross beam of the rectangular long bedplate frame (37), the front end of the lead screw (30) is connected with a lead screw rotating handle (33), and the rectangular long bedplate (37) is provided with a bedplate (42).

2. The motor-driven transfer vehicle with the slender revolving body as claimed in claim 1, characterized in that the left foot end of the left front X-shaped lifting fork (6) is hinged with the left end of the left front X-shaped lifting fork front lower guide rail (2) through a left front lower pin shaft (7), the right foot end of the left front X-shaped lifting fork (6) is movably arranged on the left front X-shaped lifting fork front lower guide rail (2) through a right front lower roller (9), the left foot end of the left front X-shaped lifting fork (6) is hinged with the left front X-shaped lifting fork front upper guide rail (38) on the rectangular long bedplate (37) through a left front upper pin shaft (8), and the right foot end of the left front X-shaped lifting fork (6) is movably abutted on the left front X-shaped lifting fork front upper guide rail (38) through a right front upper roller (10); a left rear X-shaped lifting fork (11) is arranged between a left rear X-shaped lifting fork rear lower guide rail (3) on the rectangular bottom frame (1) and a left rear X-shaped lifting fork rear upper guide rail (39) on the rectangular long bedplate (37); a right front X-shaped lifting fork (12) is arranged between a right front X-shaped lifting fork front lower guide rail (4) on a rectangular bottom frame (1) and a right front X-shaped lifting fork front upper guide rail (41) on a rectangular long bedplate (37), a right rear X-shaped lifting fork (13) is arranged between a right rear X-shaped lifting fork rear lower guide rail (5) on the rectangular bottom frame (1) and a right rear X-shaped lifting fork rear upper guide rail (40) on the rectangular long bedplate (37), the structure of a left front X-shaped lifting fork (6), the structure of a left rear X-shaped lifting fork (11), the structure of the right front X-shaped lifting fork (12) and the structure of the right rear X-shaped lifting fork (13) are the same, a lead screw supporting bearing fixing frame (36) is arranged in the middle of the rectangular long bedplate frame (37), a lead screw front end supporting bearing seat plate (34) and a lead screw rear end supporting bearing seat plate (35) are respectively arranged on the lead screw supporting bearing fixing frame (36), a screw front end supporting bearing is arranged on the screw front end supporting bearing seat plate (34), and a screw rear end supporting bearing is arranged on the screw rear end supporting bearing seat plate (35); a left front upper horizontal guide rail (38), a left rear upper horizontal guide rail (39), a right front upper horizontal guide rail (41) and a left rear upper horizontal guide rail (40) are respectively arranged on the rectangular long bedplate frame (37), a right front upper roller (10) is abutted on the left front upper horizontal guide rail (38), a right rear upper roller on a left rear X-shaped lifting fork (11) is abutted on the left rear upper horizontal guide rail (39), a left front upper roller on a right front X-shaped lifting fork (12) is abutted on the right front upper horizontal guide rail (41), and a left rear upper roller on a right rear X-shaped lifting fork (13) is abutted on the left rear upper horizontal guide rail (40); a left lower connecting rod (16) is arranged between the right bottom foot of the left front X-shaped lifting fork (6) and the right bottom foot of the left rear X-shaped lifting fork (11), and a right lower connecting rod (20) is arranged between the left bottom foot of the right front X-shaped lifting fork (12) and the left bottom foot of the right rear X-shaped lifting fork (13).

3. The motor-driven transfer vehicle of elongated rotary bodies according to claim 2, characterized in that a deck plate (42) is provided on the top end face of the rectangular long deck frame (37), a front-rear direction parallel guide rail (43) is provided on the deck plate (42), a front slider (46) and a rear slider (47) are movably provided on the front-rear direction parallel guide rail (43), a carrier roller position adjusting screw (48) is inserted between the front slider (46) and the rear slider (47), a clockwise thread is provided on the front portion of the carrier roller position adjusting screw (48), an anticlockwise thread is provided on the rear portion of the carrier roller position adjusting screw (48), the front slider (46) is screwed on the clockwise thread on the carrier roller position adjusting screw (48), the rear slider (47) is screwed on the anticlockwise thread on the carrier roller position adjusting screw (48), a front end bearing support frame (44) of the carrier roller position adjusting screw rod is arranged at the front end of the front-back direction parallel guide rail (43), a rear end bearing support frame (45) of the carrier roller position adjusting screw rod is arranged at the rear end of the front-back direction parallel guide rail (43), and a hand wheel is connected to the front end of the carrier roller position adjusting screw rod (48); a front carrier roller (49) is fixedly arranged on the top surface of the front sliding block (46), and a rear carrier roller (50) is fixedly arranged on the top surface of the rear sliding block (47).