CN216271286U

CN216271286U - Rail positioning and butt-joint mechanism for shuttle vehicle layer changing

Info

Publication number: CN216271286U
Application number: CN202121892708.4U
Authority: CN
Inventors: 王东; 李祥山; 贾金凤; 刘伟; 李彩峰
Original assignee: Dongjie Intelligent Technology Group Co ltd
Current assignee: Dongjie Intelligent Technology Group Co ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2022-04-12
Anticipated expiration: 2031-08-13

Abstract

The invention discloses a rail positioning and butt-joint mechanism for a shuttle car during layer changing, which solves the problems of realizing stable and accurate butt joint of two flat layers of rails at low cost and placing the deformation of the rails at the butt joint; the positioning seats are arranged on a steel structure framework of the four-upright-column layer changing elevator, the swing arm assemblies are arranged on two sides of a lifting platform of the four-upright-column layer changing elevator, a driving motor synchronously drives four swing arms on two sides of the lifting platform of the layer changing elevator through a transmission device and are in lap joint positioning with the four positioning seats on the steel structure framework, so that accurate positioning of the whole lifting platform on the steel structure framework during layer changing is realized, accurate butt joint of a shuttle bus rail on the lifting platform and a shuttle bus walking rail on the outer side of a goods shelf is indirectly guaranteed, the swing arms synchronously drive safe limiting swing arms to swing, and limiting and abdicating of the shuttle bus walking is realized; the defect that the butt joint rail is easy to deform due to the stress of butt joint adjustment is thoroughly overcome, and the two ends of the platform are uniformly stressed.

Description

Rail positioning and butt-joint mechanism for shuttle vehicle layer changing

Technical Field

The invention relates to a multi-layer dense warehousing system for storing and taking goods by using a shuttle car, in particular to a rail positioning butt joint mechanism and a positioning butt joint method for realizing stable and accurate butt joint of a shuttle bus rail arranged on a lifting platform of a four-column layer-changing elevator in the dense warehousing system and a rail in a layer-changing walking three-dimensional channel of the shuttle bus at one side of a goods shelf.

Background

The goods shelves of the dense warehousing system generally have dozens of layers or even dozens of layers, the whole goods shelves are continuously arranged on the plane in a matrix form, and the goods shelves generally adopt automatic material handling equipment (namely a primary shuttle vehicle) to carry out warehousing and ex-warehousing operation of goods; the outer side of the matrix type continuous arrangement goods shelf is provided with a shuttle bus layer-changing walking three-dimensional channel along the longitudinal direction, each layer along the longitudinal direction is provided with a shuttle bus walking channel, the shuttle bus realizes the reciprocating linear walking in the longitudinal direction in the channel, the end part of the shuttle bus layer-changing walking three-dimensional channel is provided with a four-column layer-changing elevator, a shuttle bus connecting track is arranged on a lifting platform of the four-column layer-changing elevator, the shuttle bus connecting track is provided with the shuttle bus, goods to be stored are carried on the shuttle bus, when the four-column layer-changing elevator is lifted to a goods storage layer, the shuttle bus connecting track needs to be accurately butted with the layer of track in the bus layer-changing walking three-dimensional channel, then, the shuttle bus is started, the shuttle bus tracks on the lifting platform run to the tracks of the shuttle bus layer-changing walking three-dimensional channel, continuously walking to a transverse channel of a target goods shelf, enabling the secondary shuttle vehicles to enter a space between the primary vehicle and goods from the transverse channel, transferring the goods from the primary vehicle to the secondary vehicle, carrying the goods to a target goods position by the secondary vehicle carrying the goods, returning the shuttle primary vehicle completing goods transferring to a shuttle primary vehicle connecting track on the four-column layer changing elevator, and preparing to carry the next goods; the layer-changing walking three-dimensional channel of the shuttle bus is formed by a steel structure three-dimensional framework, the shuttle bus walking rails are arranged on the steel structure three-dimensional framework in a layered mode, the shuttle bus connection rails on the lifting platform are stably and accurately in butt joint with the layer-changing walking rails of all layers of shuttle buses, and in the whole working process, after the lifting platform of the layer-changing lifting machine stops, when the layer-changing lifting machine is in butt joint with the layer-changing walking rails of the shuttle buses, certain dislocation generally exists, including height dislocation and angle dislocation; under the condition of dislocation, the shuttle bus can cross the ridge to enter and exit the lifting platform of the four-upright-column elevator, so that the phenomena of clamping stagnation and platform jumping of different degrees can be caused when the shuttle bus walks, and the service life of a shuttle bus walking driving system can be influenced; the Chinese patent application with the patent number of 201810662997.5 and the name of 'a multilayer shuttle car layer-changing safety device' discloses a technical scheme aiming at the problems, the technical scheme is that a limit component and a swing arm component are arranged at the butt joint position of a shuttle bus running track and a shuttle bus connecting track on a lifting platform, and the butt joint of the two tracks is realized through the swing lap joint of the limit component and the swing arm component; the technical scheme has the following defects: (1) because the limiting assembly and the swing arm assembly for realizing the butt joint of the two rails are arranged on the two butted rails, the two butted rails are in a cantilever state at the butt joint position and are easy to deform and warp after being stressed, and the deformation of the butted rails is aggravated by the limiting butt joint force of the swing arm assembly and the limiting assembly; (2) each rail butt joint part of the technical scheme is provided with a driving motor, the driving motor drives the corresponding swing arm component and the corresponding limiting component to complete the butt joint work of the rail, namely two motors are required to be configured to complete the rail connection task in one direction, the cost for configuring the motors is high, and the task of synchronous action of the two motors is required to be completed; (3) this technical scheme only swings to butt joint spacing to the female car that shuttles back and forth who goes up and down on the platform in the four stand lifts, bears the weight of thing when the female car that shuttles back and forth, and the walking is when two track butt joints, takes place the problem that the female car that shuttles back and forth links up the track slope and warp easily.

Disclosure of Invention

The invention provides a rail positioning and butt-joint mechanism and a positioning and butt-joint method for a shuttle car during layer changing, which solve the technical problems of realizing stable and accurate butt joint of two rail flat layers at low cost and preventing rails at the butt joint from deforming.

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

the general concept of the invention is: the conventional design method that the limiting assembly and the swing arm assembly are installed on the butt joint rail when two rails are in butt joint in the prior art is changed, the positioning seat is arranged on a steel structure frame of the four-upright-column layer changing elevator, the swing arm assembly is arranged on two sides of a lifting platform of the four-upright-column layer changing elevator, four swing arms on two sides of the lifting platform of the layer changing elevator are synchronously driven by a driving motor through a transmission device and are in lap joint positioning with the four positioning seats on the steel structure frame, so that accurate positioning of the whole lifting platform during layer changing on the steel structure frame is realized, accurate butt joint of a shuttle bus rail on the lifting platform and a shuttle bus traveling rail outside a goods shelf is indirectly guaranteed, meanwhile, the swing arms synchronously drive the safe limiting swing arms to swing, and limiting and avoiding of the shuttle bus traveling are realized; the invention adopts one motor to drive the four swing arms to synchronously act, has less equipment investment and good synchronism, thoroughly overcomes the defect of easy deformation of the butt joint track caused by the butt joint regulation stress, and has uniform stress at the two ends of the platform and difficult inclination.

A rail positioning butt-joint mechanism for layer changing of a shuttle car comprises a lift steel structure framework, wherein a lifting platform is arranged in the lift steel structure framework, a shuttle bus connecting rail is arranged on the lifting platform, a shuttle bus is arranged on the shuttle bus connecting rail, a first layer bus walking rail, a second layer bus walking rail and a third layer bus walking rail are respectively arranged on the right side of the lift steel structure framework, a first layer right side cross beam of the steel structure framework is arranged on the lift steel structure framework on the left side of the first layer bus walking rail, and a first layer left side cross beam of the steel structure framework is arranged on the lift steel structure framework on the same horizontal plane with the first layer right side cross beam of the steel structure framework; a lifting platform middle cross beam is arranged in the middle of the bottom end face of the lifting platform, a left rear positioning clamping seat and a left front positioning clamping seat are fixedly arranged on a steel structure frame first layer left side cross beam respectively, a right rear positioning clamping seat and a right front positioning clamping seat are respectively arranged on a steel structure frame first layer right side cross beam, a limiting clamping block swing driving motor is hung and connected on the lifting platform middle cross beam, a lifting platform bottom end left side cross beam is arranged on the bottom left side of the lifting platform, a lifting platform bottom end right side cross beam is arranged on the bottom right side of the lifting platform, a left rear supporting shaft sleeve and a left front supporting shaft sleeve of a left driving rotating shaft are respectively and fixedly arranged on the lifting platform bottom end left side cross beam, a right rear supporting shaft sleeve and a right front supporting shaft sleeve of a right driving rotating shaft are respectively and fixedly arranged on the lifting platform bottom end right side cross beam, and between the left rear supporting shaft sleeve and the left front supporting shaft sleeve, the left driving rotating shaft is movably arranged, the right driving rotating shaft is arranged between the right rear supporting shaft sleeve and the right front supporting shaft sleeve, the middle part of the left driving rotating shaft is connected with a left middle driving swing arm, a pull rod driving disc is connected to an output shaft of a limiting fixture block swing driving motor, a left pull rod is arranged between the lower end of the left middle driving swing arm and the pull rod driving disc, the middle part of the right driving rotating shaft is connected with a right middle driving swing arm, and a right pull rod is arranged between the lower end of the right middle driving swing arm and the pull rod driving disc; the front end of the left driving rotating shaft is connected with a left front connecting swing arm, the other end of the left front connecting swing arm is connected with a left front limiting shaft, a left front positioning groove is arranged on a left front positioning clamping seat outside the left front limiting shaft, and the left front limiting shaft and the left front positioning groove are movably clamped together; the rear end of the left driving rotating shaft is connected with a left rear connecting swing arm, the other end of the left rear connecting swing arm is connected with a left rear limiting shaft, a left rear positioning groove is arranged on a left rear positioning clamping seat outside the left rear limiting shaft, and the left rear limiting shaft and the left rear positioning groove are movably clamped together; the rear end of the right driving rotating shaft is connected with a right rear limiting shaft connecting swing arm, the other end of the right rear limiting shaft connecting swing arm is connected with a right rear limiting shaft, a right rear positioning groove is formed in the right rear positioning clamping seat, and the right rear limiting shaft and the right rear positioning groove are movably clamped together; the front end of the right driving rotating shaft is connected with a right front limiting shaft connecting swing arm, the other end of the right front limiting shaft connecting swing arm is connected with a right front limiting shaft, a right front positioning groove is arranged on the right front positioning clamping seat, and the right rear limiting shaft and the right rear positioning groove are movably clamped together.

The front end of the left driving rotating shaft is connected with a left front abdicating swing arm driving rod, a left front abdicating swing arm is hinged on the left front positioning clamping seat, the lower end of the left front abdicating swing arm is fixedly connected with a left front abdicating swing arm swing driving wedge block, the outer end of the left front abdicating swing arm driving rod is movably connected with a wedge surface on the left front abdicating swing arm swing driving wedge block in a propping manner, and a reset spring is arranged between the outer side end of the left front abdicating swing arm and the left front positioning clamping seat; a left rear allowance swing arm driving rod is connected to the rear end of the left driving rotating shaft, a left rear allowance swing arm is hinged to the left rear positioning clamping seat, a left rear allowance swing arm swing driving wedge block is fixedly connected to the lower end of the left rear allowance swing arm, the outer end of the left rear allowance swing arm driving rod is movably connected with a wedge face on the left rear allowance swing arm swing driving wedge block in a propping mode, and a reset spring is arranged between the outer side end of the left rear allowance swing arm and the left rear positioning clamping seat; a right rear abdicating swing arm driving rod is connected at the rear end of the right driving rotating shaft, a right rear abdicating swing arm is hinged on the right rear positioning clamping seat, a right rear abdicating swing arm swing driving wedge block is fixedly connected at the lower end of the right rear abdicating swing arm, the outer end of the right rear abdicating swing arm driving rod is movably connected with a wedge surface on the right rear abdicating swing arm swing driving wedge block in a propping manner, and a reset spring is arranged between the outer side end of the right rear abdicating swing arm and the right rear positioning clamping seat; the front end at right drive rotation axis is connected with right front swing arm actuating lever that steps down, it has right front swing arm that steps down to articulate on the location cassette before right, the right front swing arm swing drive wedge that steps down of lower extreme fixedly connected with of the swing arm of stepping down before right, the outer end of right front swing arm actuating lever that steps down and the right front swing arm swing of stepping down drive wedge on wedge activity top joint be in the same place, it is provided with reset spring to step down between the outside end of swing arm and the location cassette before right before stepping down before right.

A positioning and butt-jointing method of a rail positioning and butt-jointing mechanism during layer changing of a shuttle car is characterized by comprising the following steps: when a lifting platform arranged in a steel structure frame of the lifter is lifted to the butt joint of the first layer of mother vehicle travelling tracks and stops lifting, a limit fixture block swing driving motor is started, a pull rod driving disc rotates, the pull rod driving disc drives a left pull rod to move rightwards, the left pull rod drives a left middle driving swing arm to swing, the left middle driving swing arm drives a left driving rotating shaft to rotate, the left driving rotating shaft simultaneously drives a left front connecting swing arm and a left rear connecting swing arm to swing leftwards, so that a left front limit shaft enters a left front positioning groove, and a left rear limit shaft enters a left rear positioning groove; meanwhile, the right pull rod moves leftwards, the right pull rod drives the right middle driving swing arm to swing, the right middle driving swing arm drives the right driving rotating shaft to rotate, the right driving rotating shaft simultaneously drives the right front limiting shaft connecting swing arm and the right rear limiting shaft connecting swing arm to swing, so that the right rear limiting shaft enters the right rear positioning groove, and the right rear limiting shaft enters the right rear positioning groove; accurate butt joint of the shuttle bus joining track and the first layer bus traveling track is realized through the clamping connection of the four limiting shafts and the corresponding positioning grooves in place; when the right driving rotating shaft rotates, the outer end of the right front abdicating swing arm driving rod is in sliding butting connection with a wedge surface on the right front abdicating swing arm swinging driving wedge block, so that the right front abdicating swing arm overcomes the elastic force of a return spring to swing outwards and move away from the first layer of mother car walking track, and the shuttle mother car can be driven out without obstacles; in a similar way, when the right driving rotating shaft rotates, the right rear abdicating swing arm overcomes the elastic force of the reset spring to swing outwards, and meanwhile, the left front abdicating swing arm and the left rear abdicating swing arm also swing outwards due to the rotation of the left driving rotating shaft.

The invention completes the accurate butt joint of the layer changing track in the vertical direction of the shuttle car through a mechanical mode, the motor positioned at the bottom of the lifting platform where the shuttle car is positioned drives the linkage pull rod assembly, the pull rod assembly is connected with the linkage swing arm, so that the swing arm is matched with the positioning seat on the steel structure frame of the four-upright-post elevator to form rigid connection, the position of the lifting platform can be fixed, the positioning seat on the steel structure frame of the four-upright-post elevator adopts an adjustable structure, the installation height of the positioning seat and the frame can be adjusted, thus realizing the alignment of the track on the lifting platform and the track of the goods shelf, the two sides of the steel structure frame are symmetrically stressed by the force in the vertical direction, the stress deformation of the steel structure is small, the rigidity requirement under the long-term use environment can be ensured, each track does not need to bear other external force, and the linkage swing arm is linked to open the safety limiting device in the swinging process.

Drawings

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

fig. 2 is a schematic structural diagram of the matching relationship between the steel structural frame 1 and the lifting platform 2 of the elevator of the invention;

fig. 3 is a schematic structural view of the elevating platform 2 of the present invention;

fig. 4 is a schematic view of the lifting platform 2 of the present invention in a bottom view;

fig. 5 is a diagram of the matching relationship between the swing arm mechanism and the positioning seat at the bottom of the lifting platform 2.

Detailed Description

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

a rail positioning butt-joint mechanism for layer changing of a shuttle car comprises a lift steel structure frame (1), wherein a lifting platform 2 is arranged in the lift steel structure frame 1, a shuttle bus connecting rail 4 is arranged on the lifting platform 2, a shuttle bus 3 is arranged on the shuttle bus connecting rail 4, a first layer bus walking rail 5, a second layer bus walking rail 6 and a third layer bus walking rail 7 are respectively arranged on the right side of the lift steel structure frame 1, a steel structure frame first layer right side cross beam 9 is arranged on the lift steel structure frame 1 on the left side of the first layer bus walking rail 5, and a steel structure frame first layer left side cross beam 8 is arranged on the lift steel structure frame 1 on the same horizontal plane with the steel structure frame first layer right side cross beam 9; a lifting platform middle cross beam 14 is arranged in the middle of the bottom end surface of the lifting platform 2, a left rear positioning clamping seat 10 and a left front positioning clamping seat 11 are respectively and fixedly arranged on a steel structure frame first layer left side cross beam 8, a right rear positioning clamping seat 12 and a right front positioning clamping seat 13 are respectively arranged on a steel structure frame first layer right side cross beam 9, a limiting clamping block swing driving motor 15 is hung on the lifting platform middle cross beam 14, a lifting platform bottom left side cross beam 42 is arranged on the bottom left side of the lifting platform 2, a lifting platform bottom right side cross beam 43 is arranged on the bottom right side of the lifting platform 2, a left rear supporting shaft sleeve 44 and a left front supporting shaft sleeve 45 of a left driving rotating shaft are respectively and fixedly arranged on the lifting platform bottom left side cross beam 42, a right rear supporting shaft sleeve 46 and a right front supporting shaft sleeve 47 of a right driving rotating shaft are respectively and fixedly arranged on the lifting platform bottom right side cross beam 43, a left driving rotating shaft 20 is movably arranged between the left rear supporting shaft sleeve 44 and the left front supporting shaft sleeve 45, a right driving rotating shaft 22 is arranged between the right rear supporting shaft sleeve 46 and the right front supporting shaft sleeve 47, a left middle driving swing arm 19 is connected to the middle of the left driving rotating shaft 20, a pull rod driving disc 16 is connected to an output shaft of the limiting fixture block swinging driving motor 15, a left pull rod 17 is arranged between the lower end of the left middle driving swing arm 19 and the pull rod driving disc 16, a right middle driving swing arm 21 is connected to the middle of the right driving rotating shaft 22, and a right pull rod 18 is arranged between the lower end of the right middle driving swing arm 21 and the pull rod driving disc 16; the front end of the left driving rotating shaft 20 is connected with a left front connecting swing arm 23, the other end of the left front connecting swing arm 23 is connected with a left front limiting shaft 25, a left front positioning groove 27 is arranged on the left front positioning clamping seat 11 outside the left front limiting shaft 25, and the left front limiting shaft 25 and the left front positioning groove 27 are movably clamped together; the rear end of the left driving rotating shaft 20 is connected with a left rear connecting swing arm 24, the other end of the left rear connecting swing arm 24 is connected with a left rear limiting shaft 26, a left rear positioning groove 28 is arranged on the left rear positioning clamping seat 10 outside the left rear limiting shaft 26, and the left rear limiting shaft 26 and the left rear positioning groove 28 are movably clamped together; a right rear limiting shaft connecting swing arm 30 is connected to the rear end of the right driving rotating shaft 22, a right rear limiting shaft 32 is connected to the other end of the right rear limiting shaft connecting swing arm 30, a right rear positioning groove 34 is formed in the right rear positioning clamping seat 12, and the right rear limiting shaft 32 and the right rear positioning groove 34 are movably clamped together; a right front limiting shaft connecting swing arm 29 is connected to the front end of the right driving rotating shaft 22, a right front limiting shaft 31 is connected to the other end of the right front limiting shaft connecting swing arm 29, a right front positioning groove 34 is formed in the right front positioning clamping seat 13, and the right rear limiting shaft 31 and the right rear positioning groove 34 are movably clamped together; according to the invention, the accurate positioning of the left rear positioning clamping seat 10, the left front positioning clamping seat 11, the right rear positioning clamping seat 12 and the right front positioning clamping seat 13 on the elevator steel structure frame 1 is realized, and the accurate butt joint of the shuttle mother vehicle joining track 4 on the lifting platform 2 and the first layer mother vehicle walking track 5 is realized through the matching of four limiting shafts on the left driving rotating shaft 20 and the right driving rotating shaft 22 which are arranged on the bottom surface of the lifting platform 2 and grooves on the clamping seats, namely the accurate positioning of the two tracks is transited to the accurate positioning of the lifting platform on the elevator steel structure frame 1, the in-place adjustment of the four grooves and swing arms driven by a driving motor is designed to be flexible, so that the stable butt joint of the two tracks on the height and the angle is realized; simultaneously, four swing arms and the cooperation of four positioning channel section on the lift steel structural framework 1 have also stabilized lift platform greatly, make the walking of mother's car 3 that shuttles back and forth, can not make whole lift platform appear inclining.

A left front abdicating swing arm driving rod 35 is connected to the front end of the left driving rotating shaft 20, a left front abdicating swing arm 39 is hinged on the left front positioning clamping seat 11, a left front abdicating swing arm swing driving wedge block 40 is fixedly connected to the lower end of the left front abdicating swing arm 39, the outer end of the left front abdicating swing arm driving rod 35 is movably abutted with a wedge surface on the left front abdicating swing arm swing driving wedge block 40, and a reset spring 41 is arranged between the outer side end of the left front abdicating swing arm 39 and the left front positioning clamping seat 11; a left rear allowance swing arm driving rod 36 is connected to the rear end of the left driving rotating shaft 20, a left rear allowance swing arm 48 is hinged to the left rear positioning clamping seat 10, a left rear allowance swing arm swing driving wedge block is fixedly connected to the lower end of the left rear allowance swing arm 48, the outer end of the left rear allowance swing arm driving rod 36 is movably abutted to a wedge face on the left rear allowance swing arm swing driving wedge block, and a reset spring is arranged between the outer end of the left rear allowance swing arm 48 and the left rear positioning clamping seat 10; a right rear abdicating swing arm driving rod 38 is connected to the rear end of the right driving rotating shaft 22, a right rear abdicating swing arm 50 is hinged to the right rear positioning clamping seat 12, a right rear abdicating swing arm swing driving wedge block is fixedly connected to the lower end of the right rear abdicating swing arm 50, the outer end of the right rear abdicating swing arm driving rod 38 is movably connected with a wedge surface on the right rear abdicating swing arm swing driving wedge block in a propping manner, and a return spring is arranged between the outer end of the right rear abdicating swing arm 50 and the right rear positioning clamping seat 12; the front end at right drive rotation axis 22 is connected with right front swing arm actuating lever 37 of stepping down, it has right front swing arm 49 of stepping down to articulate on right front location cassette 13, the lower extreme fixedly connected with right front swing arm swing drive wedge of stepping down swing arm 49 of stepping down before right, the outer end of right front swing arm actuating lever 37 of stepping down and the wedge face activity of right front swing arm swing drive wedge on together, it is provided with reset spring to step down between the outside end of swing arm 49 of stepping down before right and right front location cassette 13.

A positioning and butt-jointing method of a rail positioning and butt-jointing mechanism during layer changing of a shuttle car is characterized by comprising the following steps: when a lifting platform 2 arranged in a steel structure frame 1 of the lifter is lifted to the butt joint of a first layer of mother vehicle travelling rails 5 and stops lifting, a limit fixture block swing driving motor 15 is started, a pull rod driving disc 16 rotates, the pull rod driving disc 16 drives a left pull rod 17 to move rightwards, the left pull rod 17 drives a left middle driving swing arm 19 to swing, the left middle driving swing arm 19 drives a left driving rotating shaft 20 to rotate, the left driving rotating shaft 20 simultaneously drives a left front connecting swing arm 23 and a left rear connecting swing arm 24 to swing leftwards, a left front limit shaft 25 enters a left front positioning groove 27, and a left rear limit shaft 26 enters a left rear positioning groove 28; meanwhile, the right pull rod 18 moves leftwards, the right pull rod 18 drives the right middle driving swing arm 21 to swing, the right middle driving swing arm 21 drives the right driving rotating shaft 22 to rotate, the right driving rotating shaft 22 simultaneously drives the right front limiting shaft connecting swing arm 29 and the right rear limiting shaft connecting swing arm 30 to swing, so that the right rear limiting shaft 32 enters the right rear positioning groove 34, and the right rear limiting shaft 31 enters the right rear positioning groove 34; accurate butt joint of the shuttle bus joining track 4 and the first-layer bus traveling track 5 is realized through the clamping connection of the four limiting shafts and the corresponding positioning grooves in place; while the right driving rotating shaft 22 rotates, the outer end of the right front abdicating swing arm driving rod 37 is in sliding butting connection on a wedge-shaped surface on the right front abdicating swing arm swinging driving wedge block, so that the right front abdicating swing arm 49 overcomes the elastic force of a return spring to swing outwards and is moved away from the first layer of mother vehicle walking track 5, and the shuttle mother vehicles 3 are driven out without obstacles; similarly, the right drive rotation shaft 22 rotates while the right rear abdicating swing arm 50 swings outward against the elastic force of the return spring, and at the same time, the left drive rotation shaft 20 rotates while the left front abdicating swing arm 39 and the left rear abdicating swing arm 48 swing outward.

Claims

1. A rail positioning and butt-joint mechanism for a shuttle car during layer changing comprises a steel structure frame (1) of an elevator, a lifting platform (2) is arranged in the steel structure framework (1) of the lifter, a shuttling mother vehicle connecting track (4) is arranged on the lifting platform (2), a shuttle bus (3) is arranged on the shuttle bus connecting track (4), a first layer bus walking track (5), a second layer bus walking track (6) and a third layer bus walking track (7) are respectively arranged on the right side of the elevator steel structure framework (1), a first layer right cross beam (9) of the steel structure frame is arranged on the elevator steel structure frame (1) on the left side of the first layer of the mother vehicle walking track (5), a left cross beam (8) of the first layer of the steel structure frame is arranged on the elevator steel structure frame (1) which is positioned on the same horizontal plane with the right cross beam (9) of the first layer of the steel structure frame; a lifting platform middle cross beam (14) is arranged in the middle of the bottom end surface of the lifting platform (2), and is characterized in that a left rear positioning clamping seat (10) and a left front positioning clamping seat (11) are respectively and fixedly arranged on a first layer left side cross beam (8) of a steel structure frame, a right rear positioning clamping seat (12) and a right front positioning clamping seat (13) are respectively arranged on a first layer right side cross beam (9) of the steel structure frame, a limiting clamping block swing driving motor (15) is hung and connected on the lifting platform middle cross beam (14), a lifting platform bottom left side cross beam (42) is arranged on the left side of the bottom end of the lifting platform (2), a lifting platform bottom right side cross beam (43) is arranged on the right side of the bottom end of the lifting platform (2), a left rear supporting shaft sleeve (44) and a left front supporting shaft sleeve (45) of a left driving rotating shaft are respectively and fixedly arranged on the lifting platform bottom left side cross beam (42), a right rear supporting shaft sleeve (46) and a right front supporting shaft sleeve (47) of a right driving rotating shaft are respectively and fixedly arranged on a right lateral beam (43) at the bottom end of the lifting platform, a left driving rotating shaft (20) is movably arranged between a left rear supporting shaft sleeve (44) and a left front supporting shaft sleeve (45), a right driving rotating shaft (22) is arranged between the right rear supporting shaft sleeve (46) and the right front supporting shaft sleeve (47), a left middle driving swing arm (19) is connected to the middle part of the left driving rotating shaft (20), a pull rod driving disc (16) is connected to an output shaft of a limiting fixture block swinging driving motor (15), a left pull rod (17) is arranged between the lower end of the left middle driving swing arm (19) and the pull rod driving disc (16), a right middle driving swing arm (21) is connected to the middle part of the right driving rotating shaft (22), and a lower end of the right middle driving swing arm (21) and the pull rod driving disc (16), a right pull rod (18) is arranged; the front end of the left driving rotating shaft (20) is connected with a left front connecting swing arm (23), the other end of the left front connecting swing arm (23) is connected with a left front limiting shaft (25), a left front positioning groove (27) is arranged on a left front positioning clamping seat (11) on the outer side of the left front limiting shaft (25), and the left front limiting shaft (25) and the left front positioning groove (27) are movably clamped together; the rear end of the left driving rotating shaft (20) is connected with a left rear connecting swing arm (24), the other end of the left rear connecting swing arm (24) is connected with a left rear limiting shaft (26), a left rear positioning groove (28) is arranged on a left rear positioning clamping seat (10) on the outer side of the left rear limiting shaft (26), and the left rear limiting shaft (26) and the left rear positioning groove (28) are movably clamped together; a right rear limiting shaft connecting swing arm (30) is connected to the rear end of the right driving rotating shaft (22), a right rear limiting shaft (32) is connected to the other end of the right rear limiting shaft connecting swing arm (30), a right rear positioning groove (34) is formed in the right rear positioning clamping seat (12), and the right rear limiting shaft (32) and the right rear positioning groove (34) are movably clamped together; the front end of the right driving rotating shaft (22) is connected with a right front limiting shaft connecting swing arm (29), the other end of the right front limiting shaft connecting swing arm (29) is connected with a right front limiting shaft (31), a right front positioning groove (34) is arranged on the right front positioning clamping seat (13), and the right rear limiting shaft (31) and the right rear positioning groove (34) are movably clamped together.

2. The track positioning and butt-joint mechanism for the layer changing of the shuttle car according to claim 1, wherein a left front abdicating swing arm driving rod (35) is connected to the front end of the left driving rotating shaft (20), a left front abdicating swing arm (39) is hinged to the left front positioning clamping seat (11), a left front abdicating swing arm swinging driving wedge block (40) is fixedly connected to the lower end of the left front abdicating swing arm (39), the outer end of the left front abdicating swing arm driving rod (35) is movably abutted with a wedge surface on the left front abdicating swing arm swinging driving wedge block (40), and a return spring (41) is arranged between the outer end of the left front abdicating swing arm (39) and the left front positioning clamping seat (11); a left rear allowance swing arm driving rod (36) is connected to the rear end of the left driving rotating shaft (20), a left rear allowance swing arm (48) is hinged to the left rear positioning clamping seat (10), a left rear allowance swing arm swing driving wedge block is fixedly connected to the lower end of the left rear allowance swing arm (48), the outer end of the left rear allowance swing arm driving rod (36) is movably abutted to a wedge face on the left rear allowance swing arm swing driving wedge block, and a reset spring is arranged between the outer end of the left rear allowance swing arm (48) and the left rear positioning clamping seat (10); a right rear abdicating swing arm driving rod (38) is connected at the rear end of the right driving rotating shaft (22), a right rear abdicating swing arm (50) is hinged on the right rear positioning clamping seat (12), a right rear abdicating swing arm swing driving wedge block is fixedly connected at the lower end of the right rear abdicating swing arm (50), the outer end of the right rear abdicating swing arm driving rod (38) is movably connected with a wedge surface on the right rear abdicating swing arm swing driving wedge block in a propping manner, and a reset spring is arranged between the outer side end of the right rear abdicating swing arm (50) and the right rear positioning clamping seat (12); the front end of right drive rotation axis (22) is connected with right front swing arm actuating lever (37) of stepping down, it has right front swing arm (49) of stepping down to articulate on right front location cassette (13), the lower extreme fixedly connected with right front swing arm swing drive wedge of stepping down of swing arm (49) of stepping down before right, the outer end of right front swing arm actuating lever (37) of stepping down links together with the activity top of the wedge face on the right front swing arm swing drive wedge of stepping down, it is provided with reset spring to step down before right between the outside end of swing arm (49) and right front location cassette (13).