Jib transfer system and construction machine equipment production line

Abstract

The present application belongs to the field of engineering machinery equipment production, and discloses a hoist arm transfer system and engineering machinery equipment production line, wherein a front workshop AGV trolley automatically carries a hoist arm carrying tool carrying a hoist arm in a front process workshop, and a process crane automatically hoists and transfers the hoist arm carrying tool carrying the hoist arm from the front process workshop to a rear process workshop, so that long-distance automatic transfer of the hoist arm can be realized. The front workshop AGV trolley only carries the hoist arm in the front process workshop for a short distance, and the process crane works in the air, so that the overall land occupation of the system is small. In addition, the front workshop AGV trolley and the process crane are both automatic devices, the system has high automation, can save manpower, greatly improves the transfer efficiency, ensures stable hoisting of the hoist arm, avoids the phenomenon of hoist arm tilting or falling, and greatly improves the safety. When the hoist arm is hoisted on and off the line, the hoist arm carrying tool plays a protective role on the hoist arm, avoids bumping of the hoist arm, ensures the surface quality of the hoist arm, and saves the cost of paint repair.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery equipment manufacturing technology, specifically to a boom transfer system and an engineering machinery equipment production line. Background Technology

[0002] Currently, long-distance transport of crane assemblies for construction machinery equipment during the production process requires the use of double overhead cranes for hoisting within the workshop and ground rail vehicles for transporting between adjacent workshops.

[0003] Specifically, during the hoisting process, one person needs to operate two overhead cranes simultaneously to achieve multi-point hoisting and transport of the boom. If the operation of the two cranes is not synchronized, the boom is prone to tilting or even falling, posing a significant safety hazard. When using a ground railcar to transport the boom, it requires a large amount of ground space, and the boom hoisted in one workshop needs to be hoisted again upon arrival at the next workshop. This results in multiple hoisting movements during long-distance transport, causing significant wear and tear on the paint surface of the boom, requiring secondary repainting and increasing costs. Furthermore, multiple people are needed to assist during hoisting, consuming manpower. Summary of the Invention

[0004] In view of at least one of the above-mentioned defects or deficiencies in the prior art, the present invention provides a crane boom transfer system and an engineering machinery equipment production line. The system achieves long-distance automatic transfer of the crane boom by combining the automatic handling of the crane by AGV trolleys in the workshop and the automatic lifting of the crane by the programmable crane between workshops. The system also uses crane boom bearing fixtures to protect the crane boom, thereby achieving the goals of saving floor space, automating crane boom transfer, improving safety, and reducing labor and material costs.

[0005] To achieve the above objectives, a first aspect of the present invention provides a boom transfer system, comprising:

[0006] Crane boom support fixture, used to support the crane boom;

[0007] The programmable overhead crane includes a span-connecting conveyor rail and a liftable hoist. The front and rear ends of the span-connecting conveyor rail are respectively configured to connect adjacent upstream and downstream workshops. The front end of the rail forms an upper boom position, and the rear end forms a lower boom position.

[0008] The front workshop AGV trolley is used to be installed in the front process workshop;

[0009] The front workshop AGV is arranged to be capable of carrying the arm carrying tool with the arm to below the arm online position, and the line AGV is arranged to be capable of driving the lifting tool hung in the arm online position to lift the arm and driving the lifting tool hung in the arm offline position to release the arm.

[0010] Optionally, the arm transfer system comprises a rear workshop AGV arranged in the rear workshop, the rear end of the guide rail is formed with a tool backflow online position in front of the arm offline position, and the front end of the guide rail is formed with a tool backflow offline position in rear of the arm online position.

[0011] The rear workshop AGV is arranged to be capable of carrying the empty arm carrying tool with the arm taken out in the rear workshop to below the tool backflow online position, and the line AGV is arranged to be capable of driving the lifting tool hung in the tool backflow online position to lift the empty arm carrying tool and driving the lifting tool hung in the tool backflow offline position to release the empty arm carrying tool.

[0012] Optionally, the front workshop AGV is arranged to be capable of further carrying the empty arm carrying tool to a position where the arm carrying tool with the arm is placed before being carried after carrying the arm carrying tool with the arm to below the arm online position.

[0013] Optionally, two tool lug portions extending transversely outward are respectively formed on the two side walls of the arm carrying tool in the width direction, the lifting tool comprises two hooks arranged in transverse direction and capable of reverse swinging, and the lifting tool is arranged to be capable of driving the two hooks to swing towards each other to respectively hang the two tool lug portions or driving the two hooks to swing away from each other to release the two tool lug portions.

[0014] Optionally, the arm carrying tool comprises a tool cover body with an open top and a tool bracket arranged in a cover cavity of the tool cover body and used for supporting the arm, and the two tool lug portions are respectively formed on the top positions of the two side walls of the tool cover body in the width direction.

[0015] Optionally, the lifting tool comprises a lifting tool lifting mechanism used for driving the two hooks to synchronously lift, and the lifting tool lifting mechanism is hung on the top of the cross conveying guide rail and is hinged with the two hooks on the bottom.

[0016] Optionally, the bottom of the lifting mechanism of the lifting device is provided with a lifting mechanism movable plate, and the two hooks are hingedly connected to the lifting mechanism movable plate.

[0017] The upper end of the first connecting rod is hingedly connected to the lifting mechanism movable plate and is arranged in transverse direction and spaced from the corresponding hook, the lower end of the second connecting rod is hingedly connected to the corresponding hook, and the lower end of the first connecting rod and the upper end of the second connecting rod are hingedly connected to each other.

[0018] Optionally, the lifting mechanism of the lifting device comprises a lifting mechanism fixed plate, a lifting mechanism movable plate and a scissor folding mechanism, the lifting mechanism fixed plate is suspended from the cross conveying guide rail, the lifting mechanism movable plate is arranged in parallel and spaced below the lifting mechanism fixed plate, the top of the scissor folding mechanism is connected to the lifting mechanism fixed plate and the bottom of the scissor folding mechanism is connected to the lifting mechanism movable plate, and the two hooks are hingedly connected to the lifting mechanism movable plate.

[0019] Optionally, the lifting arm carrying tool comprises a tool bracket for supporting the lifting arm, the tool bracket is formed as a telescopic bracket with adjustable length and comprises a bracket fixed sleeve, a first bracket telescopic rod, a second bracket telescopic rod and a plurality of bracket supporting prongs, the bracket fixed sleeve is arranged in horizontal direction, the first bracket telescopic rod and the second bracket telescopic rod are respectively slidably connected with two sleeve ports of the bracket fixed sleeve, and the plurality of bracket supporting prongs are fixedly arranged in sequence and spaced on the bracket fixed sleeve, the first bracket telescopic rod and the second bracket telescopic rod.

[0020] The second aspect of the present application provides an engineering machinery equipment production line, which comprises:

[0021] a front process workshop and a rear process workshop respectively used for performing two adjacent lifting arm production processes;

[0022] the lifting arm transfer system described above;

[0023] The front end of the guide rail is connected to the front process workshop and the rear end of the guide rail is connected to the rear process workshop, and the front workshop AGV trolley is arranged in the front process workshop.

[0024] In the present application, the AGV small vehicle in the front workshop automatically carries the boom carrying tooling carrying the boom in the front process workshop, and the travelling crane automatically hoists the boom carrying tooling carrying the boom from the front process workshop to the rear process workshop, so that the long-distance automatic transfer of the boom transfer system to the boom can be realized. In the whole transfer process, the AGV small vehicle in the front workshop only carries the boom in the front process workshop for a short distance, and the travelling crane is an aerial work equipment, so that the overall land occupation of the system is less. In addition, the AGV small vehicle in the front workshop and the travelling crane are both automatic equipment, the system has high automation degree, can save manpower, greatly improve the transfer efficiency, ensure the stable hoisting of the boom, avoid the phenomenon of boom tilting or falling, and greatly improve the safety. When the boom is hoisted and lowered, the boom carrying tooling plays a protective role on the boom, avoids the boom from bumping, ensures the surface quality of the boom, and saves the cost of paint repair.

[0025] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the present application, but do not constitute a limitation on the present application. In the drawings:

[0027] Figure 1 is a schematic view of the present application in the specific embodiment of the present application when the boom transfer system transfers the boom;

[0028] Figure 2 is a schematic view of the present application in the specific embodiment of the present application when the boom transfer system transfers the boom;

[0029] Figure 3 is a schematic view of the present application in the specific embodiment of the present application when the boom transfer system transfers the boom;

[0030] Figure 4 is a schematic view of the present application in the specific embodiment of the present application when the boom transfer system transfers the boom;

[0031] Figure 5 is a schematic view of the present application in the specific embodiment of the present application when the boom transfer system transfers the boom;

[0032] Figure 6 is a schematic view of the present application in the specific embodiment of the present application when the boom transfer system transfers the boom.

[0033] Explanation of reference signs:

[0034] 100 boom carrying tooling

[0035] 101 tooling ear part 102 tooling outer cover

[0036] 103 tooling bracket

[0037] 103a bracket fixing sleeve 103b first bracket telescopic rod

[0038] 103c second bracket telescopic rod 103d bracket prong

[0039] 200 program car

[0040] 201 cross conveying guide rail 202 hook

[0041] 203 first connecting rod 204 second connecting rod

[0042] 205 lifting mechanism fixed plate 206 lifting mechanism movable plate

[0043] 207 scissor folding mechanism

[0044] 300 AGV trolley 400 boom

[0045] 500 workshop position one 600 workshop position two DETAILED DESCRIPTION

[0046] The specific embodiments of the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the embodiments of the present application, and are not intended to limit the embodiments of the present application.

[0047] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0048] In the embodiments of the present application, the orientation words such as “up, down, top, bottom” used without the opposite description are generally for the direction shown in the drawings or for the description of the positional relationship of each component in the vertical, perpendicular or gravity direction.

[0049] The present application will be described in detail below with reference to the accompanying drawings and in combination with exemplary embodiments.

[0050] As shown in Figures 1 to 3 , the first exemplary embodiment of the present application provides a boom transfer system, which mainly includes a boom carrying tooling 100 for carrying a boom 400, a program car 200 for automatically hoisting the boom carrying tooling 100, and a front workshop AGV trolley for automatically carrying the boom carrying tooling 100.

[0051] Specifically, the boom carrying tool 100 can stably carry the boom 400. When the boom 400 is transferred, the direct hoisting object of the line car 200 and the direct carrying object of the front workshop AGV are the boom carrying tool 100. Therefore, the bumping that the boom 400 may originally suffer during the transfer process is blocked by the boom carrying tool 100, and the boom carrying tool 100 plays a protective role on the boom 400.

[0052] The line car 200 includes a cross conveying guide rail 201 and a liftable hoist. The liftable hoist is suspended on the cross conveying guide rail 201 and can move along the cross conveying guide rail 201. The cross conveying guide rail 201 is used to connect the front process workshop and the rear process workshop which respectively perform two adjacent boom production processes. Specifically, the front end of the guide rail of the cross conveying guide rail 201 connects the front process workshop, and the rear end of the guide rail of the cross conveying guide rail 201 connects the rear process workshop. In addition, the front end of the guide rail forms an upper boom line position (for example, the leftmost position in FIG. 6), and the rear end of the guide rail forms a lower boom line position (for example, the rightmost position in FIG. 6). Figure 1 Figure 1

[0053] The front workshop AGV is used to be arranged in the front process workshop, that is, the boom carrying tool 100 can be automatically carried in the front process workshop.

[0054] When the boom 400 needs to be transferred from the front process workshop to the rear process workshop, the front workshop AGV can carry the boom carrying tool 100 carrying the boom 400 to below the upper boom line position of the cross conveying guide rail 201. The liftable hoist can be moved to the upper boom line position suspended on the cross conveying guide rail 201. At this time, the line car 200 can drive the liftable hoist to hoist the boom 400 and hoist the boom 400 to the lower boom line position. When the liftable hoist is suspended on the lower boom line position, the line car 200 can drive the liftable hoist to release the boom 400, so that the boom 400 enters the rear process workshop.

[0055] ​​As can be seen from the above, in the present exemplary embodiment, the front workshop AGV vehicle automatically carries the boom carrier tool 100 carrying the boom 400 in the front process workshop, and the travelling crane 200 automatically hoists and transports the boom carrier tool 100 carrying the boom 400 from the front process workshop to the rear process workshop, so that the long-distance automatic transportation of the boom 400 by the boom transportation system can be realized. In the whole transportation process, the front workshop AGV vehicle only carries the boom 400 in the front process workshop for a short distance, and the travelling crane 200 is an aerial work equipment, so that the overall land occupation of the system is small. In addition, the front workshop AGV vehicle and the travelling crane 200 are both automatic equipment, the system has high automation degree, can save manpower, greatly improve the transportation efficiency, ensure the stable hoisting of the boom 400, avoid the phenomenon of boom 400 tilting or falling, and greatly improve the safety. When the boom 400 is hoisted and lowered, the boom carrier tool 100 plays a protective role on the boom 400, avoids the boom 400 from bumping, ensures the surface quality of the boom 400, and saves the cost of paint repair.

[0056] In an embodiment, referring to Figure 1 , the boom transportation system further comprises a rear workshop AGV vehicle configured to be arranged in the rear process workshop, and the rear workshop AGV vehicle is capable of automatically carrying the boom carrier tool 100 in the rear process workshop. In addition, the rear workshop AGV vehicle and the front workshop AGV vehicle can be the same type of AGV vehicle 300. In the present embodiment, the rear end of the guide rail further forms a tool backflow upper line position located on the front side of the boom lower line position, and the front end of the guide rail further forms a tool backflow lower line position located on the rear side of the boom upper line position.

[0057] After the boom carrier tool 100 carrying the boom 400 is hoisted and transported by the travelling crane 200 and released in the rear process workshop, the boom 400 can be taken out of the boom carrier tool 100 to participate in the boom production process performed by the rear process workshop. Then, the rear workshop AGV vehicle can carry the empty boom carrier tool 100 in which the boom 400 has been taken out in the rear process workshop to below the tool backflow upper line position (for example, workshop position one 500 shown in Figure 1 ). At this time, the travelling crane 200 can drive the liftable hoist to return to be suspended in the tool backflow upper line position, drive the liftable hoist to hoist the empty boom carrier tool 100, and then drive the liftable hoist to move to the tool backflow lower line position. In the case that the liftable hoist is suspended in the tool backflow lower line position, the travelling crane 200 drives the liftable hoist to release the empty boom carrier tool 100 to the front process workshop (for example, released in the workshop position two 600 shown in Figure 1 ).

[0058] It can be seen that in the present embodiment, the rear workshop AGV vehicle automatically carries the empty load of the boom carrying tool 100 in the rear process workshop, and the empty load of the boom carrying tool 100 is automatically hoisted from the rear process workshop to the front process workshop by the transfer vehicle 200, so that the automatic backflow transfer of the empty load of the boom carrying tool 100 by the boom transfer system can be realized.

[0059] In an embodiment, the front workshop AGV vehicle can further carry the empty load of the boom carrying tool 100 to the position where the boom carrying tool 100 carrying the boom 400 was placed before being carried, after the boom carrying tool 100 carrying the boom 400 is carried to the lower position of the boom online position. For example, in the case where two empty loads of the boom carrying tool 100 (hereinafter referred to as the first tool and the second tool, respectively) are placed in the front process workshop, when one boom 400 in the front process workshop needs to be transferred to the rear process workshop, the boom 400 is first placed in the first tool, and then the front workshop AGV vehicle carries the first tool carrying the boom 400 from the first tool position to the lower position of the boom online position. Figure 1 After the carrying is completed, the front workshop AGV vehicle can further carry the second tool to the second workshop position 600 for use as a boom 400 carrying tool for the next boom 400 to be transferred from the front process workshop to the rear process workshop.

[0060] In other words, in the present embodiment, the front workshop AGV vehicle not only assists the boom carrying tool 100 carrying the boom 400 to be hoisted online in the front process workshop, but also automatically carries the empty load of the boom carrying tool 100 to the standby position (such as the second workshop position 600) in the front process workshop, so that it can continuously assist multiple booms 400 in the front process workshop to be hoisted online, and further improve the degree of automation of the boom transfer system.

[0061] In an embodiment, referring to Figure 5 and Figure 6 , two tool lug portions 101 extending transversely outward are formed on the two side walls of the boom carrying tool 100 in the width direction, and the liftable hoist includes two hooks 202 spaced apart in the transverse direction and capable of reverse swinging. When the boom carrying tool 100 needs to be hoisted, the liftable hoist can drive the two hooks 202 to swing towards each other to hang the two tool lug portions 101, respectively. When the boom carrying tool 100 needs to be released, the liftable hoist can drive the two hooks 202 to swing away from each other to release the two tool lug portions 101. In this hoist structure and tool structure form, the hoisting stability can be ensured, and the hoisting state and release state can be quickly switched, and the hoisting online and offline efficiency can be improved.

[0062] In an embodiment, referring to Figure 3The crane carrying tool 100 can further include a tool outer cover 102 and a tool bracket 103. The tool outer cover 102 is open at the top, and the tool bracket 103 is arranged in the cover cavity of the tool outer cover 102 and used to support the crane 400. Two tool hanging lug portions 101 are respectively formed at the top of the outer peripheral walls on both sides of the tool outer cover 102 in the width direction. When the crane 400 is carried by the crane carrying tool 100, the crane 400 can be put into the tool bracket 103 from the open top of the tool outer cover 102. After the crane 400 is put into the tool bracket 103, the tool outer cover 102 completely covers the two transverse peripheral walls and the bottom wall of the crane 400, so that the tool outer cover 102 can protect the crane 400 from being bumped and causing paint abrasion during the transfer of the crane 400.

[0063] In an embodiment, with reference to Figure 5 and Figure 6 The liftable crane can include a crane lifting mechanism for driving the two hooks 202 to synchronously lift, and the top of the crane lifting mechanism is suspended from the cross conveying guide rail 201 and the bottom of the crane lifting mechanism is hinged with the two hooks 202. In other words, by lifting and moving the crane lifting mechanism itself, the two hooks 202 can be synchronously lifted and moved, so that the lifting and unloading of the crane 400 can be achieved.

[0064] In an embodiment, the bottom of the crane lifting mechanism is provided with a lifting mechanism movable plate 206, and the two hooks 202 are hinged to the lifting mechanism movable plate 206. The liftable crane further includes two connecting rod support mechanisms respectively corresponding to the two hooks 202, and each connecting rod support mechanism includes a first connecting rod 203 and a second connecting rod 204. The upper end of the first connecting rod 203 is hinged to the lifting mechanism movable plate 206 and is arranged in the transverse direction and spaced from the corresponding hook 202, the lower end of the second connecting rod 204 is hinged to the corresponding hook 202, and the lower end of the first connecting rod 203 and the upper end of the second connecting rod 204 are hinged to each other.

[0065] The main function of the connecting rod support mechanism is to prevent the two hooks 202 from swinging away from each other and loosening the two tool hanging lug portions 101 during the lifting and carrying of the crane 400, so as to avoid the sudden falling of the crane carrying tool 100 together with the crane 400 during the lifting and carrying, and reduce the safety hazard. In order to achieve this stable support effect, with reference to Figure 5 , it is specified that, in the state that the two hooks 202 hang the two tool hanging lug portions 101 respectively, the first connecting rod axis of the first connecting rod 203 and the second connecting rod axis of the second connecting rod 204 coincide, and in the case that the first connecting rod axis and the second connecting rod axis coincide, the first connecting rod 203 and the second connecting rod 204 are not easy to rotate, so as to form stable support to the two hooks 202.

[0066] In an embodiment, the lifting mechanism of the lifting device further comprises a lifting mechanism fixed plate 205 and a scissor folding mechanism 207. The lifting mechanism fixed plate 205 is suspended on the cross conveying rail 201, and the lifting mechanism movable plate 206 is arranged in parallel and spaced below the lifting mechanism fixed plate 205, and the top of the scissor folding mechanism 207 is connected to the lifting mechanism fixed plate 205 and the bottom is connected to the lifting mechanism movable plate 206. In this way, when the scissor folding mechanism 207 unfolds the folding arm group, it can drive the lifting mechanism movable plate 206 to drive the two hooks 202 to descend, and when the scissor folding mechanism 207 folds the folding arm group, it can drive the lifting mechanism movable plate 206 to drive the two hooks 202 to ascend.

[0067] In an embodiment, referring to Figure 4 , the tool carrier 103 is formed as an adjustable length telescopic carrier and comprises a carrier fixed sleeve 103a, a first carrier telescopic rod 103b, a second carrier telescopic rod 103c and a plurality of carrier prongs 103d. The carrier fixed sleeve 103a is arranged in the horizontal direction, the first carrier telescopic rod 103b and the second carrier telescopic rod 103c are respectively slidably connected with two sleeve ports of the carrier fixed sleeve 103a, and the plurality of carrier prongs 103d are fixedly arranged in sequence and spaced on the carrier fixed sleeve 103a, the first carrier telescopic rod 103b and the second carrier telescopic rod 103c. In this way, by adjusting the extension length of the first carrier telescopic rod 103b and the second carrier telescopic rod 103c from the corresponding sleeve ports, the overall length of the telescopic carrier can be adjusted, so that the telescopic carrier always adapts to the length of the lifting arm 400 for support, ensuring high support stability.

[0068] The second exemplary embodiment of the present application provides an engineering machinery equipment production line, which comprises the above-mentioned lifting arm transfer system and a front process workshop and a rear process workshop respectively used for performing two adjacent lifting arm production processes. As described above, the front end of the cross conveying rail 201 is connected to the front process workshop, the rear end of the cross conveying rail 201 is connected to the rear process workshop, and the front workshop AGV trolley is arranged in the front process workshop. Obviously, the engineering machinery equipment production line of the present exemplary embodiment has all the technical effects brought by the lifting arm transfer system, and therefore will not be repeated here.

[0069] The above describes the optional embodiments of the embodiments of the present application in detail in combination with the drawings, but the embodiments of the present application are not limited to the specific details in the above-described embodiments. Within the technical concept of the embodiments of the present application, the technical solutions of the embodiments of the present application can be subjected to various simple modifications, and these simple modifications all belong to the protection scope of the embodiments of the present application.

[0070] It should be noted that various technical features described in the above embodiments can be combined in any suitable manner, and the embodiments of the present application are not limited to the combinations described above. In order to avoid unnecessary repetition, the various possible combinations are not described again.

[0071] In addition, various different embodiments of the present application can be combined in any suitable manner, as long as they do not contradict the idea of the present application, and should be considered as disclosed by the present application.

Claims

1. A crane boom transfer system, characterized in that, The boom transfer system includes: A boom support fixture (100) is used to support a boom (400). The boom support fixture (100) has two tooling lugs (101) extending laterally outward on its two peripheral walls along the width direction. A programmable overhead crane (200) includes a cross-pass conveyor rail (201) and a liftable hoist. The front and rear ends of the cross-pass conveyor rail (201) are respectively configured to connect adjacent upstream and downstream workshops. The front end of the rail forms an upper boom position, and the rear end forms a lower boom position. The liftable hoist includes two hooks (202) spaced laterally and capable of swinging in opposite directions. The liftable hoist is configured to drive the two hooks (202) to swing toward each other to hook onto two tooling lugs (101) respectively, or to drive the two hooks (202) to swing away from each other to release the two tooling lugs (101). The front workshop AGV trolley is used to be installed in the front process workshop; The front workshop AGV trolley is configured to transport the boom-carrying fixture (100) carrying the boom (400) to below the upper position of the boom. The programmable crane (200) is configured to drive the liftable lifting device suspended at the upper position of the boom to lift the boom (400) and to drive the liftable lifting device suspended at the lower position of the boom to release the boom (400). The boom support fixture (100) includes a fixture outer cover (102) with an open top and a fixture bracket (103) disposed in the cavity of the fixture outer cover (102) and used to support the boom (400). Two fixture hanging ears (101) are respectively formed at the top position of the outer peripheral walls on both sides of the fixture outer cover (102) along the width direction. The tooling bracket (103) is formed as a telescopic bracket with adjustable length and includes a bracket fixing sleeve (103a), a first bracket telescopic rod (103b), a second bracket telescopic rod (103c), and a plurality of bracket forks (103d). The bracket fixing sleeve (103a) is arranged in a horizontal direction. The first bracket telescopic rod (103b) and the second bracket telescopic rod (103c) are slidably connected to the two sleeve ports of the bracket fixing sleeve (103a). The plurality of bracket forks (103d) are fixedly and sequentially spaced on the bracket fixing sleeve (103a), the first bracket telescopic rod (103b), and the second bracket telescopic rod (103c).

2. The boom transfer system according to claim 1, characterized in that, The boom transfer system includes a rear workshop AGV trolley for installation in the rear process workshop. The rear end of the guide rail forms a tooling return and loading position located in front of the boom unloading position, and the front end of the guide rail forms a tooling return and unloading position located behind the boom loading position. The rear workshop AGV trolley is configured to transport the unloaded boom-bearing fixture (100) with the boom (400) removed from the rear process workshop to below the fixture return line position. The programmable crane (200) is configured to drive the liftable lifting device suspended at the fixture return line position to lift the unloaded boom-bearing fixture (100) and to drive the liftable lifting device suspended at the fixture return line position to release the unloaded boom-bearing fixture (100).

3. The boom transfer system according to claim 1, characterized in that, The front workshop AGV trolley is configured to further transport the unloaded boom carrier (100) to the position where the boom carrier (100) carrying the boom (400) was placed before being transported, after transporting the boom carrier (100) carrying the boom (400) to below the boom upper line position.

4. The boom transfer system according to claim 1, characterized in that, The liftable lifting device includes a lifting mechanism for driving the two hooks (202) to lift synchronously. The top of the lifting mechanism is suspended from the overpass conveyor rail (201) and the bottom is hinged to the two hooks (202).

5. The boom transfer system according to claim 4, characterized in that, The bottom of the lifting mechanism is provided with a lifting mechanism movable plate (206), and the two hooks (202) are hinged to the lifting mechanism movable plate (206). The liftable lifting device includes two linkage support mechanisms respectively corresponding to the two hooks (202). Each linkage support mechanism includes a first link (203) and a second link (204). The upper end of the first connecting rod (203) is hinged to the movable plate (206) of the lifting mechanism and is spaced laterally from the corresponding hook (202). The lower end of the second connecting rod (204) is hinged to the corresponding hook (202). The lower end of the first connecting rod (203) and the upper end of the second connecting rod (204) are hinged to each other. When the two hooks (202) are respectively hooked onto the two tooling lugs (101), the first connecting rod axis of the first connecting rod (203) and the second connecting rod axis of the second connecting rod (204) in each connecting rod support mechanism coincide.

6. The boom transfer system according to claim 4, characterized in that, The lifting mechanism includes a lifting mechanism fixed plate (205), a lifting mechanism movable plate (206), and a scissor folding mechanism (207). The lifting mechanism fixed plate (205) is suspended from the cross-span conveying guide rail (201). The lifting mechanism movable plates (206) are arranged parallel to each other below the lifting mechanism fixed plate (205). The top of the scissor folding mechanism (207) is connected to the lifting mechanism fixed plate (205), and the bottom is connected to the lifting mechanism movable plate (206). Both hooks (202) are hinged to the lifting mechanism movable plate (206).

7. A production line for engineering machinery equipment, characterized in that, The engineering machinery equipment production line includes: These are respectively used in the upstream and downstream workshops for executing two adjacent boom production processes; and The boom transfer system according to any one of claims 1 to 6; The guide rail is connected to the front workshop and the guide rail is connected to the rear workshop. The AGV trolley in the front workshop is set up in the front workshop.

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