Lifting appliance for rear wall framework of cab of heavy truck

Abstract

The utility model relates to a lifting appliance for a rear wall framework of a cab of a heavy truck. The lifting appliance comprises a crank assembly, a suspension hanging arm, a hanging assembly, a square tube frame, a stand column, an L-shaped support, a magnet suction seat, a handrail, an operating handle and a turnover mechanism. The lifting appliance for the rear wall framework of the cab of the heavy truck is simple in structure and convenient to operate, meanwhile, the position of the lifting appliance can be overturned through the overturning mechanism, and large and heavy parts with complex surface shapes can be adsorbed by selecting the magnet suckers; the compatibility of the sucker of the lifting appliance to an adsorption surface is extremely high, flexible use of multiple parts with small changes can be realized, and the efficiency of special development and design of the lifting appliance in process development is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slings, in particular to a sling for a rear frame of a heavy truck cab. Background Art

[0002] At present, as the weight of heavy-duty truck cabs is increasingly valued, the plate structures in various areas of the cab need to comprehensively consider the weight and process manufacturability. In particular, auxiliary hoists for large-volume, high-weight structural areas can effectively make up for structural limitations and improve process efficiency.

[0003] Among them, due to structural limitations, the rear enclosure frame assembly hoist needs to be in a horizontal position when using the hook, and the rear enclosure frame assembly is placed vertically on the material rack. Therefore, before using the hoist, the rear enclosure frame assembly needs to be manually removed from the material rack and placed horizontally. After using the hoist, it is necessary to align the limiter with the corresponding position one by one or hang the limiter slot into the process hole. Due to the large structure of the rear enclosure frame assembly, there is still some manual handling during the use of the hoist. At the same time, the positioning of the limiter block takes a certain amount of time, which increases the labor intensity of the on-site workers and affects the production efficiency. Therefore, providing a truck cab rear enclosure frame assembly hoist that can not only meet the needs of vertical lifting of the rear enclosure frame assembly, but also does not require manual limitering, reduces the labor intensity of workers, and improves the efficiency of the hoist operation has become a problem that technicians in this field need to solve urgently.

[0004] The cab of a heavy truck mainly provides drivers with convenient working conditions and comfortable riding conditions, and protects them from vibration and noise during driving. The rear frame assembly is particularly important in terms of overall structural vibration resistance and noise reduction.

[0005] However, since the rear enclosure frame assembly is mainly welded together by 6 parts (2 rear enclosure reinforcement longitudinal beams, 2 left sections of the rear enclosure upper reinforcement beam, the middle section of the rear enclosure lower reinforcement beam, and the rear enclosure upper reinforcement beam inner plate assembly), it is large in size (2.2m long, 1.1m high) and heavy (10KG), and requires auxiliary lifting equipment during transportation and handling; currently used lifting equipment, such as the universal lifting equipment disclosed in patent number CN219839352U for lifting the rear enclosure of commercial vehicles, is used for horizontal lifting of the rear enclosure structure, and mainly uses limiting grooves to fix parts. Such a structure cannot be flipped during use and can only realize the moving function. When lifting parts from the fixture to the transfer device, the lifting equipment needs to first lift the parts from the fixture with the lifting equipment, and then manually flip the parts 90° and place them on the transfer device. When the hoist lifts the parts from the transfer device to the fixture of the next process, it is necessary to manually lift the parts from the device, turn them 90 degrees, and then use the hoist to transfer them. In this way, the hoist and manual handling exist at the same time, which not only poses a safety risk, but also leads to low production efficiency.

[0006] Another example is the automobile rear frame lifting assembly disclosed in patent number CN208413639U, which uses a limit slot and a clamping mechanism for effective fixation. However, it is found in the long-term use process that when the existing lifting device is used to limit and fix the parts, the corresponding limit groove or limit block of the lifting device needs to be clamped in the specific position of the parts, which is difficult to align and time-consuming, and manual clamping is also required. In general, the use of the lifting device takes a long time, which affects the production efficiency of the workstation. Summary of the invention

[0007] The technical problem to be solved by the utility model is: in order to solve the problems existing in the above-mentioned background technology, a sling for the rear frame of a heavy-duty truck cab is provided, which has a simple structure and is easy to operate. At the same time, the position of the sling can be flipped through a flipping mechanism, and large and heavy parts with complex surface shapes can be adsorbed by selecting a magnetic suction cup; the sling suction cup has a very high compatibility with the adsorption surface, and can realize the flexible use of multiple parts with small modifications, greatly improving the efficiency of special development and design of the sling in process development.

[0008] The technical solution adopted by the utility model to solve its technical problems is: a hanger for the rear frame of a heavy truck cab, comprising a crank assembly, a suspension arm, a hanging assembly, a square tube frame, a column, an L-shaped bracket, a magnetic suction seat, an armrest, an operating handle and a flip mechanism; the crank assembly is installed on one side of the middle part of the square tube frame, the suspension arm is vertically installed on one side of the square tube frame, and the hanging assembly is arranged on the upper end of the suspension arm; one end of the suspension arm is installed on the crank assembly, and the flip mechanism is installed on the lower end of the crank assembly; one or more groups of columns are vertically arranged on the other side of the square tube frame, the end of the column is fixed with a magnetic suction seat through an L-shaped bracket, an extension tube is arranged on one side of the suspension arm, the armrest is horizontally installed on the extension tube, and the operating handle is installed on the armrest.

[0009] It is further defined that in the above technical solution, the hanging assembly includes a horizontal rod, and a lifting ring is fixed on the horizontal rod through a bracket; such a design can be mounted on the wire rope through the lifting ring, so that the sliding operation of the entire lifting device can be realized.

[0010] It is further defined that in the above technical solution, the flipping mechanism includes an adjustable ear shaft and a cylinder assembly; the telescopic end of the cylinder assembly is hinged at the lower end of the crank assembly; the tail of the cylinder assembly is on the extension tube through the adjustable ear shaft; such a design can realize the free flipping operation of the rear frame of the heavy truck cab through the flipping mechanism.

[0011] It is further defined that in the above technical solution, the magnetic suction base includes a base, a magnetic ring, a piston, a first air inlet and outlet, and a second air inlet and outlet; an inner hole is opened in the base, a piston is installed on the upper end of the magnetic ring, the magnetic ring is slidably inserted in the inner hole, the first air inlet and outlet and the second air inlet and outlet are both vertically opened on the side wall of the base, and the first air inlet and outlet and the second air inlet and outlet are arranged up and down along the height direction of the base; the rapid adsorption and fixation of the rear enclosure frame of the heavy truck cab can be realized.

[0012] It is further defined that in the above technical solution, a connecting piece is also provided on the upper part of the free end of the column, and a material guide rod is installed on the end of the connecting piece; such a design can realize the guided adsorption of the magnetic suction seat and avoid collision during the adsorption process.

[0013] It is further defined that in the above technical solution, a fixing rod is also provided in the middle of the upper end of the square tube frame, and a material guide rod is also installed on the end of the fixing rod through a connecting piece; such a design can realize the guided adsorption of the magnetic suction seat and avoid collision during the adsorption process.

[0014] It is further defined that, in the above technical solution, the material guide rod is of a U-shaped structure.

[0015] The beneficial effects of the utility model are as follows: the utility model proposes a sling for the rear frame of a heavy truck cab, which has a simple structure and is easy to operate. At the same time, the position of the sling can be flipped through a flipping mechanism, and the adsorption of large and heavy parts with complex surface shapes can be achieved by selecting a magnetic suction cup. The sling suction cup has a very high compatibility with the adsorption surface, and can achieve flexible use of multiple parts with small changes, greatly improving the efficiency of special development and design of the sling in process development. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the use state of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the utility model;

[0019] Figure 3 yes Figure 2 The structural diagram of the flipping mechanism;

[0020] Figure 4 yes Figure 2 Schematic diagram of the structure of the medium magnetic suction seat.

[0021] The numbers in the accompanying drawings are: 1. crank assembly, 2. suspension arm, 3. suspension assembly, 4. square tube frame, 5. column, 6. L-shaped bracket, 7. magnetic suction base, 8. handrail, 9. operating handle, 10. flip mechanism, 11. extension tube, 12. handrail, 13. horizontal rod, 14. lifting ring, 15. adjustable ear shaft, 16. cylinder assembly, 17. base, 18. magnetic ring, 19. piston, 20. first air inlet and outlet, 21. second air inlet and outlet, 22. inner hole, 23. connecting plate, 24. guide rod, 25. fixing rod, A, workpiece. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] In the present application, the cylinder assembly 16 is a hydraulic cylinder or a hydraulic oil cylinder; the piston 19 and the magnetic ring 18 are purchased directly from the market according to specific models and then matched and installed for use.

[0024] See Figure 1-4 The figure shows a hanger for the rear frame of a heavy truck cab, comprising a crank assembly 1, a suspension arm 2, a hanging assembly 3, a square tube frame 4, a column 5, an L-shaped bracket 6, a magnetic suction seat 7, an armrest 8, an operating handle 9 and a flip mechanism 10; the crank assembly 1 is installed on one side of the middle part of the square tube frame 4, the suspension arm 2 is vertically installed on one side of the square tube frame 4, and the hanging assembly 3 is arranged on the upper end of the suspension arm 2; one end of the suspension arm 2 is installed on the crank assembly 1, and the flip mechanism 10 is installed on the lower end of the crank assembly 1; one or more groups of columns 5 are vertically arranged on the other side of the square tube frame 4, and the end of the column 5 is fixed with a magnetic suction seat 7 through an L-shaped bracket 6, an extension tube 11 is arranged on one side of the suspension arm 2, an armrest 12 is horizontally installed on the extension tube 11, and an operating handle 9 is installed on the armrest 12.

[0025] Among them, the hanging assembly 3 includes a horizontal rod 13, and the horizontal rod 13 is fixed with a hanging ring 14 through a bracket. The flip mechanism 10 includes an adjustable ear shaft 15 and a cylinder assembly 16; the telescopic end of the cylinder assembly 16 is hinged at the lower end of the crank assembly 1; the tail of the cylinder assembly 16 is on the extension tube 11 through the adjustable ear shaft 15. The magnetic suction seat 7 includes a base 17, a magnetic ring 18, a piston 19, a first air inlet and outlet 20 and a second air inlet and outlet 21; an inner hole 22 is provided in the base 17, a piston 19 is installed at the upper end of the magnetic ring 18, and the magnetic ring 18 is slidably inserted in the inner hole 22, and the first air inlet and outlet 20 and the second air inlet and outlet 21 are both vertically provided on the side wall of the base 17, and the first air inlet and outlet 20 and the second air inlet and outlet 21 are arranged up and down along the height direction of the base 17. A connecting piece 23 is also provided on the upper part of the free end of the column 5, and a material guide rod 24 is installed at the end of the connecting piece 23. A fixing rod 25 is also arranged in the middle of the upper end of the square tube frame 4, and a material guide rod 24 is also installed at the end of the fixing rod 25 through a connecting piece 23. The material guide rod 24 is a U-shaped structure.

[0026] The use principle of the heavy truck cab rear frame hanger is as follows:

[0027] First, the operator sets the whole hoist on the wire rope through the lifting ring 14, and the wire rope is fixed above the workstation, so that the whole hoist can be moved; when the welding of the rear frame assembly is completed, the clamp needs to be opened, and the XX switch on the hoist operating handle 9 is pressed. The hoist is turned to a horizontal position through the flipping structure (the flipping mechanism is mainly realized through the adjustable ear shaft 15, the cylinder assembly 16, and the crank assembly 1. When the hoist is moved above the part, the position of the hoist is found through the material guide rod 24, and the switch on the hoist operating handle 9 is pressed again. By supplying air to the upper part of the magnetic suction seat 7, the piston 19 is forced Then push the magnetic ring 18 downward to achieve adsorption and retention of the workpiece. At the same time, let the four magnetic suction seats 7 adsorb on the four positions of the workpiece to ensure that the workpiece is evenly stressed and not prone to risks such as workpiece flipping. After lifting, press the switch on the operating handle 9 again to flip the sling to a vertical position, hold the sling handrail 12 and move the sling to the rear enclosure frame assembly transport device, place the parts on the transport device and press the switch on the sling operating handle 9. By supplying air to the lower part of the magnetic suction seat 7, the piston 19 is pushed upward to achieve separation of the magnetic ring 18 from the workpiece; this completes the handling operation of the rear enclosure frame of a heavy truck cab.

[0028] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sling for the rear frame of a heavy truck cab, characterized by: It includes a crank assembly, a suspension arm, a hanging assembly, a square tube frame, a column, an L-shaped bracket, a magnetic suction seat, an armrest, an operating handle and a flip mechanism; the crank assembly is installed on one side of the middle part of the square tube frame, the suspension arm is vertically installed on one side of the square tube frame, and the hanging assembly is arranged on the upper end of the suspension arm; one end of the suspension arm is installed on the crank assembly, and the flip mechanism is installed on the lower end of the crank assembly; one or more groups of columns are vertically arranged on the other side of the square tube frame, the end of the column is fixed with a magnetic suction seat by an L-shaped bracket, an extension tube is arranged on one side of the suspension arm, the armrest is horizontally installed on the extension tube, and the operating handle is installed on the armrest.

2. The heavy truck cab rear frame sling according to claim 1, characterized in that: The hanging assembly comprises a horizontal rod, and a hanging ring is fixed on the horizontal rod through a bracket.

3. The sling for the rear frame of a heavy truck cab according to claim 1, characterized in that: The flip mechanism comprises an adjustable ear shaft and a cylinder assembly; the telescopic end of the cylinder assembly is hinged to the lower end of the crank assembly; the tail of the cylinder assembly is on the extension tube through the adjustable ear shaft.

4. The sling for the rear frame of a heavy truck cab according to claim 1, characterized in that: The magnetic suction base includes a base, a magnetic ring, a piston, a first air inlet and outlet, and a second air inlet and outlet; an inner hole is opened in the base, a piston is installed on the upper end of the magnetic ring, the magnetic ring is slidably inserted in the inner hole, the first air inlet and outlet and the second air inlet and outlet are both vertically opened on the side wall of the base, and the first air inlet and outlet and the second air inlet and outlet are arranged up and down along the height direction of the base.

5. The sling for the rear frame of a heavy truck cab according to claim 1, characterized in that: A connecting piece is also arranged on the upper part of the free end of the upright column, and a material guide rod is installed on the end of the connecting piece.

6. The heavy truck cab rear frame sling according to claim 1, characterized in that: A fixing rod is also arranged in the middle of the upper end of the square tube frame, and a material guide rod is also installed on the end of the fixing rod through a connecting piece.

7. A sling for the rear frame of a heavy truck cab according to claim 5 or 6, characterized in that: The material guide rod is in a U-shaped structure.

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