Trailer hanger for large special vehicle assembly line

Abstract

The utility model is applicable to the technical field of trailer slings, and provides a large special vehicle assembly line trailer sling, which comprises a conveyor track and two bearing vehicle groups positioned below the conveyor track, the outer end of the upper surface of the bearing trolley set is provided with an outer side crane embedded into the conveyor track through a bearing, and the inner end of the upper surface of the bearing trolley set is provided with a middle crane embedded into the conveyor track through a bearing. According to the trailer lifting appliance for the large special vehicle assembly line, the balance pulley is arranged above the lifting appliance, the balance pulley is mounted at an operation station, so that the inclination of a trolley and the swinging of conveyed objects are eliminated, the movement stability during automobile assembly is ensured, workpieces are hung in a chain and lifting hook form, the front and rear lifting hooks are included, and different workpieces can be hung respectively; and the device can be compatible with various automobile types, is used for realizing automatic transfer hanging and semi-automatic transfer hanging of the automobile body, and is relatively high in adaptability.

Description

Technical Field

[0001] The utility model belongs to the technical field of trailer lifting tools, and particularly relates to a trailer lifting tool for a large special vehicle assembly line. Background Technique

[0002] The trailer lifting tool for the vehicle assembly line is a key device used to lift and move vehicle components or the whole vehicle in the automobile assembly line. The design and use of these lifting tools are of great significance for improving production efficiency, ensuring worker safety, and ensuring product quality. The trailer lifting tool for the vehicle assembly line refers to a device specifically used on the automobile assembly line to connect and lift vehicle components or the whole vehicle through a crane or similar equipment.

[0003] In traditional trailer assembly, a crane is used for lifting, the rear axle of the vehicle is pushed under the trailer, and the overhead crane is controlled to operate the trailer to descend for assembly with the axle. This operation requires a high skill level of the operating workers, has poor reliability, and requires a large number of operating workers, resulting in high labor costs. It is inconvenient for the trailer assembly workers to operate under the vehicle frame, with low production efficiency and poor safety, and cannot well meet the production requirements. Content of the Utility Model

[0004] The utility model provides a trailer lifting tool for a large special vehicle assembly line, aiming to solve the problems that in traditional trailer assembly, a crane is used for lifting, the rear axle of the vehicle is pushed under the trailer, and the overhead crane is controlled to operate the trailer to descend for assembly with the axle, with poor reliability and a large number of operating workers required.

[0005] The utility model is realized as follows: A trailer lifting tool for a large special vehicle assembly line includes a conveyor track and two load-bearing car groups. The two load-bearing car groups are located below the conveyor track. The outer end of the upper surface of one load-bearing car group is provided with a front crane embedded in the interior of the conveyor track through a bearing, and the outer end of the upper surface of the other load-bearing car group is provided with a rear crane embedded in the interior of the conveyor track through a bearing. The inner end of the upper surface of the load-bearing car group is provided with a middle crane embedded in the interior of the conveyor track through a bearing;

[0006] A workpiece load beam is arranged between the bottoms of the two load-bearing car groups through a load pin. Chains are detachably connected to both ends of the front side and the rear side of the workpiece load beam, and hooks are detachably arranged at the other ends of the chains. Connecting seats are fixedly connected to both ends of the top of the workpiece load beam, and balance pulleys are rotatably arranged on both the front side and the rear side of the connecting seats.

[0007] Preferably, first fixed seats are fixedly connected to the outer ends of the tops of the load-bearing car groups. A first steel wire rope is fixedly connected to the surface of the front crane, and the other end of the first steel wire rope is fixedly connected to the surface of the first fixed seat.

[0008] Preferably, both ends of the top of the workpiece load beam are fixedly connected with second fixing seats, the lower surface of the carrier vehicle group is fixedly connected with a second steel wire rope, and the other end of the second steel wire rope is fixedly connected with the surface of the second fixing seat at the same end.

[0009] Preferably, both the front side and the rear side of the connecting seat are detachably connected with assembling blocks through bolt groups, and the balance pulley is rotatably connected to the outer side of the assembling block.

[0010] Preferably, both ends of the front side and the rear side of the workpiece load beam are detachably connected with hanging plates through mounting seats, and one end of the chain is fixedly connected to the surface of the corresponding hanging plate.

[0011] Preferably, the other end of the chain is fixedly connected with a connecting part, and the top of the hook is detachably connected with the connecting part through a positioning pin shaft.

[0012] Advantages

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: A trailer lifting device for a large-scale special vehicle assembly line of the present utility model is provided with balance pulleys above the lifting device and at the operation station to eliminate the inclination of the trolley and the swing of the conveyed object, ensuring the movement stability during automobile assembly. The workpiece is hung in the form of a chain and a hook, including two groups of front and rear hooks, which can hang different workpieces respectively, and can be compatible with multiple vehicle models at the same time, used to realize the automatic and semi-automatic transfer hanging of the automobile body, with strong adaptability. This lifting device can realize the automatic conveying of materials, greatly reducing the input of manpower and time, improving production efficiency, reducing the labor cost of the enterprise, and avoiding risks and errors caused by human factors. When using this lifting device, the materials are continuously conveyed on the conveying line without manual intervention, which can effectively avoid production interruption and line stoppage caused by improper manual operation or other factors, improving the continuity of the production line. Description of the Drawings

[0014] Figure 1 is the front structural schematic diagram of the present utility model;

[0015] Figure 2 is the side structural schematic diagram of the present utility model;

[0016] Figure 3 For the present utility model Figure 2 is the partial enlarged view at A in the figure.

[0017] In the figure: 1, conveyor track; 2, load-carrying vehicle group; 3, workpiece load beam; 4, load pin; 5, chain; 6, hook; 7, front crane; 8, middle crane; 9, bearing; 10, connecting seat; 11, balance pulley; 12, hanging plate; 13, mounting seat; 14, connecting part; 15, positioning pin shaft; 16, first fixing seat; 17, first steel wire rope; 18, second fixing seat; 19, second steel wire rope; 20, assembly block; 21, bolt group; 22, rear crane. Specific implementation manner

[0018] In order to make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0019] Please refer to Figures 1-3 , the present utility model provides a technical solution: a trailer lifting device for a large special vehicle assembly line, including a conveyor track 1 and two load-carrying vehicle groups 2. The two load-carrying vehicle groups 2 are located below the conveyor track 1. The outer end of the upper surface of one load-carrying vehicle group 2 is provided with a front crane 7 embedded in the interior of the conveyor track 1 through a bearing 9, and the outer end of the upper surface of the other load-carrying vehicle group 2 is provided with a rear crane 22 embedded in the interior of the conveyor track 1 through a bearing 9. The inner end of the upper surface of the load-carrying vehicle group 2 is provided with a middle crane 8 embedded in the interior of the conveyor track 1 through a bearing 9.

[0020] A workpiece load beam 3 is arranged between the bottoms of the two load-carrying vehicle groups 2 through load pins 4, and chains 5 are detachably connected to both ends of the front and rear sides of the workpiece load beam 3.

[0021] The other end of the chain 5 is detachably provided with a hook 6, and both ends of the top of the workpiece load beam 3 are fixedly connected with connecting seats 10. Balance pulleys 11 are rotatably arranged on the front and rear sides of the connecting seats 10.

[0022] The chain 5 is made of a ring chain group and belongs to a flexible connection. This structure not only ensures sufficient strength but also can meet the requirements of different workpieces through different length combinations.

[0023] Balance pulleys 11 are provided above the lifting device, and balance pulleys 11 are installed at the operation station to eliminate the inclination of the trolley and the swing of the conveyed object, ensuring the movement stability during vehicle assembly. The workpiece is hung in the form of a chain 5 and a hook 6, including two groups of front and rear hooks 6, which can hang different workpieces respectively, can be compatible with multiple vehicle models at the same time, and is used to realize the automatic and semi-automatic transfer hanging of the vehicle body, with strong adaptability.

[0024] This sling can achieve the automatic conveying of materials, greatly reducing the input of manpower and time, improving production efficiency, reducing the labor cost of enterprises, and avoiding risks and errors caused by human factors.

[0025] When using this sling, the materials are continuously conveyed on the conveyor line without manual intervention, which can effectively avoid production interruption and line stoppage caused by improper manual operation or other factors, and improve the continuity of the production line.

[0026] It enables the automatic and semi-automatic transfer hanging of existing large workpieces during assembly, with a wider application range. It has a simple structure, good versatility, can be compatible with multiple vehicle models, and has strong adaptability to meet the free hanging and assembly requirements of ultra-heavyweight and extra-large-sized workpieces.

[0027] It can be compatible with the transfer hanging of large workpieces of multiple vehicle models at the same time, with convenient loading and unloading, improving the reliability and continuity of the production line, and thus greatly improving the production capacity of the enterprise. Since accumulation trolleys are used, the automatic accumulation and release of workpieces are realized.

[0028] The independent transfer hanging of large-sized and large-weight vehicle model workpieces promotes the improvement of the domestic equipment manufacturing level with the application of its basic technology, and will further improve the economic benefits in the field of logistics transportation.

[0029] Furthermore, the outer ends of the top of the carrier car group 2 are fixedly connected with first fixed seats 16, and the surface of the front crane 7 is fixedly connected with a first steel wire rope 17. The other end of the first steel wire rope 17 is fixedly connected with the surface of the first fixed seat 16.

[0030] In this embodiment, the first steel wire rope 17 improves the connection between the conveyor track 1 and the carrier car group 2, and improves the safety during use.

[0031] Furthermore, both ends of the top of the workpiece load beam 3 are fixedly connected with second fixed seats 18, and the lower surface of the carrier car group 2 is fixedly connected with a second steel wire rope 19. The other end of the second steel wire rope 19 is fixedly connected with the surface of the second fixed seat 18 at the same end.

[0032] In this embodiment, the second steel wire rope 19 improves the connection between the carrier car group 2 and the workpiece load beam 3, and improves the safety during use.

[0033] Furthermore, both the front side and the rear side of the connection seat 10 are detachably connected with assembly blocks 20 through bolt groups 21, and the balance pulley 11 is rotatably connected to the outer side of the assembly block 20.

[0034] In this embodiment, the assembly block 20 is detachably connected to the connection seat 10, which is convenient for the later disassembly, replacement, inspection and maintenance operations of the balance pulley 11.

[0035] Further, both ends of the front side and the rear side of the workpiece load beam 3 are detachably connected with suspension plates 12 through mounting seats 13, and one end of the chain 5 is fixedly connected to the surface of the corresponding suspension plate 12.

[0036] In this embodiment, the detachable connection between the suspension plate 12 and the workpiece load beam 3 facilitates the disassembly, inspection, and maintenance of the chain 5 and the hook 6 in the later stage, or the replacement of the chain 5 and the hook 6 of different specifications.

[0037] Further, the other end of the chain 5 is fixedly connected with a connecting part 14, and the top of the hook 6 is detachably connected with the connecting part 14 through a positioning pin shaft 15.

[0038] The working principle and usage process of the present utility model: After the present utility model is installed, when a workpiece needs to be assembled, first, an operator hangs the workpiece on the hook 6 of the conveyor line through a lifter or other auxiliary equipment such as a four-belt elevator. When the workpiece needs to perform the next process operation, the stopper is opened or closed under the control command of the electric device, and the pusher of the conveyor chain engages or disengages with the lifting claw of the front vehicle, driving the trolley to move or stop along the conveyor track 1, reaching the working station where assembly is required. The operator at this working station completes the required process operation. When the production needs to perform the process operation of another vehicle model, it can be quickly switched and quickly transferred by replacing the workpiece chain 5 and the hook 6.

[0039] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A trailer lifting device for a large special vehicle assembly line, comprising a conveyor track (1) and two bearing vehicle groups (2), characterized in that: Two of the said carrier car groups (2) are located below the conveyor track (1). At the outer end of the upper surface of one carrier car group (2), a front crane (7) embedded in the interior of the conveyor track (1) is provided through a bearing (9). At the outer end of the upper surface of the other carrier car group (2), a rear crane (22) embedded in the interior of the conveyor track (1) is provided through a bearing (9). At the inner end of the upper surface of the carrier car group (2), a middle crane (8) embedded in the interior of the conveyor track (1) is provided through a bearing (9). A workpiece load beam (3) is provided between the bottoms of the two carrier car groups (2) through a load pin (4). Chains (5) are detachably connected to both ends of the front side and the rear side of the workpiece load beam (3). The other ends of the chains (5) are detachably provided with hooks (6). Connection seats (10) are fixedly connected to both ends of the top of the workpiece load beam (3). Balancing pulleys (11) are rotatably provided on both the front side and the rear side of the connection seats (10).

2. The trailer sling of a large special vehicle assembly line according to claim 1, characterized in that: First fixed seats (16) are fixedly connected to the outer ends of the tops of the carrier car groups (2). A first steel wire rope (17) is fixedly connected to the surface of the front crane (7). The other end of the first steel wire rope (17) is fixedly connected to the surface of the first fixed seat (16).

3. The trailer lifting device for the assembly line of large special vehicles according to claim 1, characterized in that: Second fixed seats (18) are fixedly connected to both ends of the top of the workpiece load beam (3). A second steel wire rope (19) is fixedly connected to the lower surface of the carrier car group (2). The other end of the second steel wire rope (19) is fixedly connected to the surface of the second fixed seat (18) at the same end.

4. The trailer lifting device for a large special vehicle assembly line according to claim 1, characterized in that: Assembly blocks (20) are detachably connected to both the front side and the rear side of the connection seats (10) through bolt groups (21). The balancing pulleys (11) are rotatably connected to the outer sides of the assembly blocks (20).

5. The trailer lifting device for a large special vehicle assembly line according to claim 1, characterized in that: Hanging plates (12) are detachably connected to both ends of the front side and the rear side of the workpiece load beam (3) through mounting seats (13). One end of each chain (5) is fixedly connected to the surface of the corresponding hanging plate (12).

6. The trailer lifting device for the assembly line of large special vehicles according to claim 1, characterized in that: The other end of each chain (5) is fixedly connected to a connecting part (14). The top of the hook (6) is detachably connected to the connecting part (14) through a positioning pin shaft (15).

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