Intelligent transfer trolley

Abstract

The utility model provides an intelligent transfer trolley which is used for transferring a handcart or a mutual inductor of an electrical switch cabinet and comprises a machine frame, a lifting assembly and a grabbing assembly, the lifting assembly is arranged on the machine frame, and the grabbing assembly is arranged on the lifting assembly so that the lifting assembly can drive the grabbing assembly to move up and down in the height direction of the machine frame; the lifting assembly comprises transmission wheels, a longitudinal transmission belt and a driving part, the transmission wheels are arranged at the top and the bottom of the rack in the same vertical direction, the longitudinal transmission belt is wound on the two transmission wheels at the top and the bottom of the rack, and a fixing structure connected with the grabbing assembly is arranged on the longitudinal transmission belt; the driving part is connected with the transmission shafts so that the transmission shafts can rotate to drive the longitudinal transmission belt to rotate around the two transmission shafts, and the fixing structure is driven by the longitudinal transmission belt to ascend and descend in the height direction of the rack. Lifting operation of the grabbing assembly is achieved, transfer and maintenance of devices are facilitated, operation is convenient and fast, time and labor are saved, positioning is accurate, and adjustment is easy and convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric power electrical equipment, and particularly relates to an auxiliary equipment for maintenance operation of electric power electrical equipment, and more particularly to an intelligent transfer trolley. BACKGROUND

[0002] It is well known that the safety and reliability of industrial electrical power equipment operation and maintenance are the primary consideration of the power supply department.

[0003] Specifically, in the industrial electrical power equipment industry, a power system such as 10kV is usually adopted, and the indoor alternating current draw-out type switchgear is a complete power distribution device of single busbar and single busbar sectionalization system. This type of switchgear can be used in power plants, small and medium-sized generator power transmission, industrial and enterprise power distribution, and power reception, power transmission and large high-voltage motor starting of secondary substation of power systems, to realize the purpose of controlling, protecting and detecting power equipment, and plays an important role in power system operation and power equipment protection.

[0004] The transfer trolley is a necessary operation and maintenance tool in the distribution room of the substation. Specifically, the intelligent transfer trolley is mainly used for the transfer and operation and maintenance of the circuit breaker handcart and current transformer in the electrical power equipment, so as to improve the operation and maintenance efficiency of the substation and reduce the labor intensity.

[0005] The transfer trolley of the prior art needs to rely on manual mode to realize lifting, resulting in high labor intensity of operation, and the transfer trolley of the prior art has large positioning error and complicated adjustment. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the above-mentioned problems of the prior art, and provides an intelligent transfer trolley capable of realizing lifting of the to-be-transferred device driven by the grabbing device, which has the advantages of convenient operation, time and labor saving, and accurate positioning.

[0007] To achieve the above purpose, the utility model provides the following technical scheme:

[0008] The utility model provides an intelligent transfer trolley for realizing the transfer of the handcart or transformer of the electrical switch cabinet, which comprises a rack, a lifting assembly and a grabbing assembly, the lifting assembly is arranged on the rack, and the grabbing assembly is arranged on the lifting assembly to drive the grabbing assembly to move up and down along the height direction of the rack through the lifting assembly.

[0009] The lifting assembly comprises transmission wheels, a longitudinal transmission belt and a driving member. The transmission wheels are arranged on the top and bottom of the frame in the same vertical direction. The longitudinal transmission belt is arranged on the transmission wheels on the top and bottom of the frame in a head-to-tail manner. The longitudinal transmission belt is provided with a fixing structure for connecting with the grabbing assembly. The driving member is connected with one of the two transmission shafts to drive the transmission shaft to rotate and drive the longitudinal transmission belt to rotate around the two transmission shafts. The fixing structure is lifted along the height direction of the frame under the driving of the longitudinal transmission belt.

[0010] Preferably, the frame comprises a base and four columns arranged at the four corners of the base. The columns extend in the longitudinal direction. The top of the four columns is connected by a pair of longitudinal beams and a pair of transverse beams. The longitudinal beams are arranged perpendicularly to the adjacent transverse beams.

[0011] Preferably, two columns arranged at the two ends of the same transverse beam are respectively provided with a set of transmission wheels and a longitudinal transmission belt. Each set of transmission wheels comprises an upper transmission wheel arranged on the top of the column and a lower transmission wheel arranged on the bottom of the column. The longitudinal transmission belt is arranged along the height direction of the column and is arranged on the upper transmission wheel and the lower transmission wheel of the column in a head-to-tail manner. The grabbing assembly is arranged between the fixing structures on the longitudinal transmission belts of the two columns.

[0012] Preferably, a transmission shaft parallel to the transverse beam is arranged between the upper transmission wheels of the two columns arranged in the same transverse beam direction. The driving member is connected with the transmission shaft to drive the two upper transmission wheels to rotate synchronously through the transmission shaft.

[0013] Preferably, the driving member comprises a motor. The motor is provided with a horizontal driving shaft for connecting with the transmission shaft.

[0014] Preferably, the horizontal driving shaft is provided with a driving gear. The transmission shaft is provided with a driven gear for engaging with the driving gear.

[0015] Preferably, the transverse beam is provided with a motor mounting plate for mounting the motor.

[0016] Preferably, the fixing structure comprises a fixing frame. The fixing frame comprises a bottom plate, a connecting plate and two side clamping arms arranged on both sides of the bottom plate and the connecting plate. The bottom plate is connected with the longitudinal transmission belt. The connecting plate is used for connecting with the grabbing assembly. The bottom plate, the connecting plate and the two side clamping arms surround the column.

[0017] Preferably, the bottom plate is provided with a locking block for fixing the fixing frame on the longitudinal transmission belt.

[0018] Preferably, the fixing frame is provided with a height detection switch for detecting the height position of the fixing frame on the column.

[0019] The beneficial effects brought by the technical scheme of the utility model are: in the utility model, the push-pull assembly for realizing horizontal pushing and pulling of the grabbing assembly is arranged on the rack, so that the device to be transferred, such as a circuit breaker or a mutual inductor, can be pulled into or moved out of the rack in the horizontal direction, the device is moved into or out of the electrical cabinet of the high-voltage switch cabinet by means of the grabbing assembly, and finally the transfer and maintenance of the circuit breaker or the mutual inductor are realized, which is convenient to operate, saves time and effort, accurate in positioning and easy to adjust. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the description of the embodiments of the utility model will be briefly introduced.

[0021] Figure 1 The utility model provides a three -dimensional structure diagram of intelligent transfer trolley for one embodiment of the utility model;

[0022] Figure 2 For Figure 1 The utility model provides the structure enlarged view of A part of intelligent transfer trolley shown in the figure;

[0023] Figure 3 For Figure 1 The utility model provides the structure enlarged view of B part of intelligent transfer trolley shown in the figure;

[0024] Figure 4 The utility model provides the structure schematic view of intelligent transfer trolley for one embodiment of the utility model;

[0025] Figure 5 For Figure 4 The utility model provides the structure enlarged view of C part of intelligent transfer trolley shown in the figure. DETAILED DESCRIPTION

[0026] The embodiments of the utility model will be described in more detail below with reference to the drawings. Although some embodiments of the utility model are shown in the drawings, it should be understood that the utility model can be realized in various forms, and should not be interpreted as being limited to the embodiments described herein, on the contrary, these embodiments are provided to more thoroughly and completely understand the utility model. It should be understood that the drawings and embodiments of the utility model are only for exemplary purposes, and are not used to limit the protection scope of the utility model.

[0027] It should be understood that each step recorded in the method embodiment of the utility model can be executed in different order and / or in parallel. In addition, the method embodiment can include additional steps and / or omit the execution of the shown steps. The scope of the utility model is not limited in this respect.

[0028] The term "including" and variations thereof, as used in this document, mean "including, but not limited to," unless expressly specified otherwise. The term "connected" can mean directly connected, or indirectly connected via intervening components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Related terms shall be construed accordingly.

[0029] It should be noted that the terms "first", "second", and the like in the present utility model are merely intended to distinguish different devices, modules or units, and are not intended to limit the devices, modules or units to be different devices, modules or units, nor are they intended to limit the order or interdependence of the functions performed by the devices, modules or units.

[0030] Please refer to the reference Figures 1 to 5 The intelligent transfer trolley of the present utility model is applicable to interfacing with a longitudinal rotary isolating circuit breaker, and realizes the transfer of large-size or heavy devices such as hand carts, insulating plates and mutual inductors of the longitudinal rotary isolating circuit breaker. In the technical scheme provided by the present utility model, the intelligent transfer trolley comprises a rack 1 and a grabbing assembly 5 for grabbing devices, and meanwhile, a lifting assembly 2 for realizing the up-down movement of the grabbing assembly 5 and / or a push-pull assembly 4 for realizing the horizontal push-pull of the grabbing assembly 5 are arranged on the rack 1, so that the above-mentioned devices to be transferred can be operated in the vertical direction and the horizontal direction to realize the lifting operation and the forward and backward push-pull to pull into the rack 1, and the transfer and maintenance of the devices such as hand carts, insulating plates or mutual inductors are realized, which is convenient to operate, saves time and effort, is accurate in positioning and rapid in adjustment.

[0031] Specifically, the rack 1 comprises a base 11, a column 12, a longitudinal beam 13 and a cross beam 14, wherein the base 11 is formed by connecting four profiles with appropriate lengths, such as aluminum alloy profiles or stainless steel profiles, etc. Considering that the intelligent transfer trolley needs to transfer the current transformer or circuit breaker with heavy weight in the high-voltage switch cabinet, the intelligent transfer trolley needs to have high load capacity, therefore, in the embodiment, the base 11 is preferably formed by stainless steel profiles, and the profiles can be fixed by appropriate methods, such as riveting, screwing or welding, etc. The fixed base 11 needs to ensure the overall strength of the trolley body of the intelligent transfer trolley and meet the bearing requirements. The column 12 extends longitudinally in the vertical direction, and the column 12 is provided with four columns and is arranged at the four corner ends of the base 11. The longitudinal beam 13 is provided with two longitudinal beams arranged in parallel, and the two longitudinal beams 13 are connected to the top ends of different two columns 12. The cross beam 14 is provided with two cross beams arranged in parallel, and the two cross beams 14 are connected to the top ends of different two columns 12. Each longitudinal beam 13 and its adjacent cross beam 14 are arranged perpendicularly. The base 11, the column 12, the pair of longitudinal beams 13 and the pair of cross beams 14 are connected to form a rectangular frame structure of the rack 1.

[0032] In one specific embodiment, the intelligent transfer trolley can realize the lifting operation of the grabbing assembly 5, therefore, the intelligent transfer trolley comprises a rack 1, a lifting assembly 2 and a grabbing assembly 5. The lifting assembly 2 is arranged on the rack 1, and the grabbing assembly 5 is connected to the lifting assembly 2, so that the grabbing assembly 5 is driven by the lifting assembly 2 to move up and down along the height direction of the rack 1.

[0033] In the embodiment, the lifting assembly 2 comprises a transmission wheel, a longitudinal transmission belt 23 and a driving member. The top and bottom of the rack 1 are respectively provided with transmission wheels in the same vertical direction, i.e. the top transmission wheel 21 and the bottom transmission wheel 22 are arranged at the top and bottom of the column 12. The longitudinal transmission belt 23 is arranged along the height direction of the column 12 and is connected to the top transmission wheel 21 and the bottom transmission wheel 22 of the column 12. The longitudinal transmission belt 23 is provided with a fixing structure for connecting the grabbing assembly 5. The driving member is connected to the top transmission wheel 21 or the bottom transmission wheel 22 to drive the connected transmission wheel to rotate, so as to drive the longitudinal transmission belt 23 to rotate around the two transmission shafts 25. The fixing structure connected to the grabbing assembly 5 is driven by the longitudinal transmission belt 23 to move along the height direction of the column 12, thereby realizing the lifting of the grabbing assembly 5 along the height direction of the rack 1.

[0034] The driving member of the embodiment preferably adopts the motor 24, the rotation of the transmission wheel is controlled through the motor 24, the rotation distance of the transmission wheel can be accurately adjusted, the rotation distance of the longitudinal transmission belt 23 is accurately adjusted, and the height position of the fixed structure and the grabbing assembly 5 is adjusted.

[0035] Considering that a single stand column 12 is difficult to support the grabbing assembly 5 and the transported device, a set of transmission wheels and longitudinal transmission belts 23 are arranged on the stand columns 12 at both ends of the same cross beam 14, each set of transmission wheels includes an upper transmission wheel 21 arranged at the top of the same stand column 12 and a lower transmission wheel 22 arranged at the bottom of the stand column 12, the longitudinal transmission is arranged in the height direction of the stand column 12 and around the upper transmission wheel 21 and the lower transmission wheel 22 arranged on the stand column 12, and the fixed structures on the two sets of longitudinal transmissions are located at the same height position, and the grabbing assembly 5 is arranged between the fixed structures on the two longitudinal transmission belts 23 of the two stand columns 12, the stress on the grabbing assembly 5 is balanced through the two sets of longitudinal beams 13, and the load capacity of the grabbing assembly 5 can be improved.

[0036] Meanwhile, in order to improve the lifting consistency of the two sets of fixed structures connected with the grabbing assembly 5, a transmission shaft 25 parallel to the cross beam 14 is arranged between the upper transmission wheels 21 of the two stand columns 12 in the same cross beam 14 direction, the motor 24 is connected with the transmission shaft 25 to synchronously drive the rotation of the two upper transmission wheels 21 connected with the transmission shaft 25, so as to ensure the rotation distance consistency of the two sets of longitudinal transmission belts 23, and then ensure the lifting consistency of the fixed structures and the stability of the grabbing assembly 5.

[0037] The motor 24 is provided with a horizontal driving shaft 241 arranged parallel to the transmission shaft 25, the horizontal driving shaft 241 is provided with a driving gear 251, the transmission shaft 25 is provided with a driven gear 242 for engaging with the driving gear 251, the power output by the motor 24 is transmitted to the transmission shaft 25 through the engagement of the two gears, and the transmission shaft 25 rotates to drive the synchronous rotation of the two upper transmission wheels 21.

[0038] In addition, the cross beam 14 is provided with a motor mounting plate 141 for fixing the motor 24. Generally, the width of the cross beam 14 is usually smaller than the body size of the motor 24, due to the limited installation area, the motor 24 cannot be fixed on the cross beam 14, or even if it is successfully installed, there will be a problem that the connection strength is not enough after installation, which is easy to cause position deviation when the motor 24 operates, and then the power cannot be accurately transmitted to the transmission shaft 25. After the motor mounting plate 141 is added in the embodiment, the contact area during the installation of the motor 24 is increased, so that the installation of the motor 24 is more firm and stable, and finally the power can be accurately transmitted to the transmission shaft 25.

[0039] The fixing structure of the embodiment comprises a fixing frame 26, which comprises a bottom plate 261, a connecting plate 262, and two side clamping arms 263 arranged on both sides of the bottom plate 261 and the connecting plate 262. The bottom plate 261 is connected with the longitudinal transmission belt 23, and the connecting plate 262 is used to be connected with the grabbing assembly 5. The bottom plate 261, the connecting plate 262, and the two side clamping arms 263 surround the stand column 12, so that when the fixing frame 26 moves up and down along the stand column 12 with the longitudinal transmission belt 23, the stand column 12 surrounding structure formed by the bottom plate 261, the connecting plate 262, and the two side clamping arms 263 can avoid the fixing frame 26 deviating from the stand column 12 and causing difficulty in lifting. Meanwhile, the bottom plate 261 is also provided with a locking block for fixing the fixing frame 26 on the longitudinal transmission belt 23, so that the longitudinal transmission belt 23 is arranged on the surface of the bottom plate 261 away from the two side clamping arms 263 and is clamped on the surface by the locking block, so that the longitudinal transmission belt 23 moves up and down together with the fixing frame 26. The locking block can be provided with a plurality of locking blocks in different embodiments, such as two locking blocks arranged in an upper and lower distribution in an embodiment, so as to further clamp the longitudinal transmission belt 23 and avoid the longitudinal transmission belt 23 slipping relative to the fixing frame 26 and failing to normally lift during lifting.

[0040] The fixing frame 26 is also provided with a height detection switch 27 for detecting the height position of the fixing frame 26 on the stand column 12, so as to ensure that the height positions of the fixing frames 26 on different stand columns 12 are consistent and improve the stability of lifting of the grabbing assembly 5.

[0041] It should be noted that: although only one lifting assembly 2 is described in the above embodiment, in fact, in order to ensure smooth lifting, another lifting assembly 2 can be additionally arranged on another cross beam 14 and the corresponding stand column 12, so as to effectively prevent the occurrence of equipment jamming.

[0042] In another specific embodiment, the intelligent transfer vehicle can realize the forward and backward movement of the grabbing assembly 5 in the horizontal direction, so the intelligent intelligent transfer vehicle of the utility model comprises a rack 1, a track assembly 3, a push-pull assembly 4, and a grabbing assembly 5. The track assembly 3 is arranged on the rack 1 in the horizontal direction. The push-pull assembly 4 is arranged on the track assembly 3. The grabbing assembly 5 is connected with the push-pull assembly 4, so as to drive the grabbing assembly 5 to move forward and backward along the length direction of the track assembly 3 through the push-pull assembly 4.

[0043] Specifically, the track assembly 3 comprises a track mounting base 31 and a track 32, the track 32 is arranged along the horizontal direction of the rack 1, specifically parallel to the cross beam 14 of the rack 1, and the track mounting base 31 is arranged at both ends of the track 32, so that the track 32 is mounted in the rack 1 through the track mounting base 31. The push-pull assembly 4 comprises a transverse transmission belt 41 arranged parallel to the track 32 and a transverse transmission wheel supported at both ends of the transverse transmission belt 41, and the transverse transmission wheel is connected with a driving member for driving the rotation thereof, the driving member drives the transverse transmission wheel to rotate to make the transverse transmission belt 41 wound thereon perform a rotary motion, and the transverse transmission belt 41 is provided with a connecting structure for connecting with the grabbing assembly 5, that is, when the transverse transmission belt 41 performs a rotary motion, the grabbing assembly 5 moves along the length direction of the transverse transmission belt 41 through the connecting structure, so as to realize the front and back movement of the grabbing assembly 5 in the horizontal direction, thereby the device can be pulled into the rack 1.

[0044] The transverse transmission wheel of the embodiment comprises a first transmission wheel 42 and a second transmission wheel 43, the driving member is connected with the first transmission wheel 42, that is, the first transmission wheel 42 serves as a driving wheel, and the second transmission wheel 43 serves as a driven wheel, and the transverse transmission belt 41 is arranged along the length of the cross beam 14 and wound on the first transmission wheel 42 and the second transmission wheel 43 in a head-to-tail manner.

[0045] Preferably, the driving member of the embodiment adopts a push-pull motor 44, the output shaft of the push-pull motor 44 is connected with the rotating shaft of the first transmission wheel 42, and the push-pull motor 44 serves as a power source, which can effectively improve the stability of the horizontal transverse movement of the grabbing assembly 5.

[0046] Considering the single movement range of the grabbing assembly 5 in the horizontal transverse direction, the rack 1 is provided with a group of track assemblies 3 and push-pull assemblies 4 at both ends of the longitudinal beam 13, and the grabbing assembly 5 is arranged between the two groups of push-pull assemblies 4. The grabbing assembly 5 comprises a moving beam 51 and a grabbing mechanism 52 arranged on the moving beam 51, the two ends of the moving beam 51 are connected with the connecting structures on the transverse transmission belts of the two groups of push-pull assemblies 4 respectively, and the position of the grabbing mechanism 52 on the moving beam 51 is adjustable, so as to meet the grabbing of the device located at different positions of the high-voltage switch cabinet by the grabbing assembly 5. It should be noted that, in order to ensure the stability of the overall transverse movement of the grabbing assembly 5, the connecting structures on the transverse transmission belts of the two groups of push-pull assemblies 4 are located in the same horizontal direction parallel to the longitudinal beam 13.

[0047] The connecting structure comprises a connecting seat 45, the end of the moving beam 51 is fixed with the connecting seat 45, and the connecting seat 45 is provided with a clamping plate 451 clamped on the transverse transmission belt 41 to be fixed, so that when the transverse transmission belt 41 moves, the connecting seat 45 drives the grabbing assembly 5 to move with the transverse transmission belt 41.

[0048] Further preferably, the rack 1 is provided with a guide rod 15 arranged parallel to the track 32, and the connecting seat 45 is provided with a guide block 452 matched with the guide rod 15, and the stability of the connecting seat 45 during movement can be improved through the cooperation of the guide block 452 and the guide rod 15.

[0049] In addition, in one embodiment, the intelligent transfer trolley simultaneously comprises the lifting assembly 2 and the push-pull assembly 4, so that the lifting operation and the operation of pulling the device to be transferred such as a handcart, a circuit breaker or a mutual inductor into the rack 1 in the vertical direction and the horizontal direction can be realized in one transfer trolley, the circuit breaker or the mutual inductor is gripped by the grabbing assembly 5 and is moved into or out of the electrical cabinet of the high-voltage switch cabinet into the rack 1, and finally the transfer and maintenance of the circuit breaker or the mutual inductor are realized, which is convenient, time-saving and labor-saving, accurate in positioning and easy to adjust.

[0050] The intelligent transfer trolley in this embodiment comprises a rack 1, a lifting assembly 2, a track assembly 3, a push-pull assembly 4 and a grabbing assembly 5, the track assembly 3 and the push-pull assembly 4 are arranged on the lifting assembly 2, and since the adjustment of the lateral position of the grabbing assembly 5 is required, one set of track assembly 3 and push-pull assembly 4 is arranged at each end of the longitudinal beam 13 of the rack 1, so that the synchronous lifting of the two sets of track assembly 3 and push-pull assembly 4 is met, two sets of lifting assemblies 2 are arranged at the two ends of the longitudinal beam 13 of the rack 1, that is, the upper transmission wheel 21, the lower transmission wheel 22 and the longitudinal transmission belt 23 wound around the two transmission wheels are arranged on each stand column 12, the track mounting seat 31 of the track assembly 3 is mounted on the fixing frame 26 of the lifting assembly 2, the two ends of the track 32 of the track assembly 3 are mounted between the lifting assemblies 2 of the two stand columns 12 along the transverse beam 14, and the track assembly 3 and the push-pull assembly 4 are driven to move up and down along the height direction of the rack 1 by the lifting assembly 2.

[0051] Therefore, on the basis of the above-mentioned arrangement of two sets of lifting assemblies 2, in order to ensure that the horizontal push-pull process is more stable, the push-pull assembly 4 is additionally arranged on the corresponding components of the other lifting assembly 2, which can also effectively prevent the occurrence of equipment jamming.

[0052] Therefore, the intelligent transfer vehicle of the embodiment integrates the lifting operation and the horizontal pushing and pulling movement of the grabbing assembly 5 together, can realize the adjustment of different positions of the grabbing assembly 5, meets different grabbing requirements, is convenient to operate, saves time and effort, is accurate in positioning and is simple to adjust.

[0053] The above description is merely preferred embodiments of the present application and a description of the technical principles used. Those skilled in the art should understand that the utility model range involved in the present application is not limited to the technical solutions formed by the specific combinations of the technical features described above, and should also cover other technical solutions formed by any combination of the above technical features or equivalent features without departing from the above utility model concept. For example, the technical solutions formed by mutually replacing the above features and the utility model features (but not limited to) having similar functions in the present application.

[0054] Although the subject matter has been described in language specific to structural features and / or methodological acts, it is to be understood that the subject defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are merely exemplary forms of implementing the claims.

Claims

1. An intelligent transfer trolley for implementing the transfer of a handcart or a transformer of an electrical switchgear, characterized in that, The machine frame, the lifting assembly and the grabbing assembly, the lifting assembly is arranged on the machine frame, and the grabbing assembly is arranged on the lifting assembly to move up and down along the height direction of the machine frame by the lifting assembly; The lifting assembly comprises a transmission wheel, a longitudinal transmission belt and a driving member, the top and bottom of the machine frame are arranged with the transmission wheel in the same vertical direction, the longitudinal transmission belt is arranged in a loop around the two transmission wheels on the top and bottom of the machine frame, the longitudinal transmission belt is arranged with a fixing structure for connecting with the grabbing assembly, the driving member is connected with one of the two transmission shafts to rotate the transmission shaft and drive the longitudinal transmission belt to rotate around the two transmission shafts, and the fixing structure is lifted along the height direction of the machine frame under the driving of the longitudinal transmission belt.

2. The intelligent transfer vehicle of claim 1, wherein, The machine frame comprises a base and four columns, the four columns are arranged at the four corners of the base, the columns extend in the longitudinal direction, and the top of the four columns is connected by a pair of longitudinal beams and a pair of transverse beams, and the longitudinal beams are arranged perpendicular to the adjacent transverse beams.

3. The intelligent transfer car of claim 2, wherein, Two columns at the two ends of the same transverse beam are respectively arranged with a set of transmission wheels and a longitudinal transmission belt, each set of transmission wheels comprises an upper transmission wheel at the top of the column and a lower transmission wheel at the bottom of the column, the longitudinal transmission belt is arranged in a loop around the upper transmission wheel and the lower transmission wheel of the column in the height direction of the column, and the fixing structure of the grabbing assembly is arranged between the longitudinal transmission belts of the two columns.

4. The intelligent transfer car of claim 3, wherein, The upper transmission wheels of the two columns in the same transverse beam direction are arranged with a transmission shaft parallel to the transverse beam, and the driving member is connected with the transmission shaft to drive the two upper transmission wheels to rotate synchronously.

5. The intelligent transfer car of claim 4, wherein, The driving member comprises a motor, and the motor is arranged with a horizontal driving shaft for connecting with the transmission shaft.

6. The intelligent transfer car of claim 5, wherein, The horizontal driving shaft is arranged with a driving gear, and the transmission shaft is arranged with a driven gear for engaging with the driving gear.

7. The intelligent transfer car of claim 5, wherein, The transverse beam is arranged with a motor mounting plate for mounting the motor.

8. The intelligent transfer car of claim 3, wherein, The fixing structure comprises a fixing frame, the fixing frame comprises a bottom plate, a connecting plate and two side clamping arms arranged on both sides of the bottom plate and the connecting plate, the bottom plate is connected with the longitudinal transmission belt, the connecting plate is used for connecting with the grabbing assembly, and the bottom plate, the connecting plate and the two side clamping arms surround the column.

9. The intelligent transfer car of claim 8, wherein, The bottom plate is arranged with a locking block for fixing the fixing frame on the longitudinal transmission belt.

10. The intelligent transfer car of claim 8, wherein, The fixing frame is arranged with a height detection switch for detecting the height position of the fixing frame on the column.

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