Special lifting appliance for carrying and finely adjusting projectile body

Abstract

A special lifting appliance for carrying and finely adjusting projectile bodies comprises a lifting beam, a first servo electric cylinder and a second servo electric cylinder are arranged on the lifting beam, an output shaft of the first servo electric cylinder is connected with a second steel wire rope rigging, and the second steel wire rope rigging sequentially winds a front guide wheel device and a front pulley assembly. The tail end of a second steel wire rope rigging wound out of the front pulley assembly is connected with a front second sling assembly, and the other end of the front second sling assembly is connected to a left front hanging lug of the projectile body. An output shaft of the second servo electric cylinder is connected with a first steel wire rope rigging, the first steel wire rope rigging is sequentially wound around a rear guide wheel device and a rear pulley assembly, the tail end of the first steel wire rope rigging wound out of the rear pulley assembly is connected with a rear second sling assembly, and the other end of the rear second sling assembly is connected to a right front hanging lug of the projectile body; the lifting appliance projectile body is controlled to roll and adjust the posture through the remote controller or the flashlight door, the whole process is convenient, time is saved, the control precision is high, and the carrying efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to a special lifting device for carrying and fine-tuning a projectile, which is suitable for the rapid transfer process of the projectile and the posture fine-tuning control during the final landing. Background Art

[0002] During the production process of the projectile, due to the welding position error of the lifting lug, it is necessary to control the lifting device projectile to roll and adjust its posture through a remote control or flashlight when the projectile is finally docked with the transport vehicle. If a purely mechanical lifting device wants to achieve roll adjustment, manual adjustment is required, which has low precision, long time and low efficiency. Summary of the invention

[0003] The technical problem to be solved by the present invention is: to provide a special lifting device for carrying and fine-tuning a projectile in order to solve the problem of low precision during posture adjustment.

[0004] To achieve the above object, the present invention is achieved through the following technical solutions: A special lifting device for carrying and fine-tuning a projectile comprises a lifting beam, on which a first servo electric cylinder and a second servo electric cylinder are arranged, wherein: The output shaft of the first servo electric cylinder is connected to the second steel wire rope sling, the second steel wire rope sling is wound around the front guide wheel device and the front pulley assembly in sequence, the end of the second steel wire rope sling wound around the front pulley assembly is connected to the front second sling assembly, and the other end of the front second sling assembly is connected to the left front hanging ear of the projectile; The output shaft of the second servo electric cylinder is connected to the first wire rope sling, the first wire rope sling is wound around the rear guide wheel device and the rear pulley assembly in sequence, the end of the first wire rope sling wound around the rear pulley assembly is connected to the rear second sling assembly, and the other end of the rear second sling assembly is connected to the right front hanging ear of the projectile; A left rear hanging ear and a right rear hanging ear are also provided on the projectile body, wherein the left rear hanging ear is connected to the hanging beam through the front first sling assembly, and the right rear hanging ear is connected to the hanging beam through the rear first sling assembly; The front guide wheel device is vertically arranged with the front pulley assembly, and the rear guide wheel device is vertically arranged with the rear pulley assembly; An anti-rope-slip device is provided in both the front guide wheel device and the rear guide wheel device; The front pulley assembly and the rear pulley assembly are both covered with pulley covers; The hanging beam is provided with a hook shaft connecting device, and the hook shaft connecting device is equipped with a hook shaft.

[0005] The first servo electric cylinder and the second servo electric cylinder both use explosion-proof motors.

[0006] The hanging beam is connected to the support frame through an auxiliary connecting device, and an explosion-proof electric control cabinet is installed on the support frame. The explosion-proof electric control cabinet meets the EXbIIBT4 explosion-proof grade requirements.

[0007] Compared with the prior art, the present invention has the following beneficial effects: the sling body is controlled to roll and adjust its posture through a remote control or a flashlight, the whole process is convenient, time is saved, the control accuracy is high, and the transportation efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a front view of the present invention; Figure 2 A top view of the present invention; Figure 3 A perspective view of the present invention; Figure 4 It is the control principle diagram of the present invention. DETAILED DESCRIPTION

[0009] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0010] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0011] like Figure 1 , Figure 2 , Figure 3 As shown, a special lifting device for carrying and fine-tuning a projectile includes a lifting beam 3, on which a first servo electric cylinder 19 and a second servo electric cylinder 12 are arranged, wherein: The output shaft of the first servo electric cylinder 19 is connected to the second wire rope sling 16, and the second wire rope sling 16 is wound around the front guide wheel device 51 and the front pulley assembly 71 in sequence. The end of the second wire rope sling 16 wound around the front pulley assembly 71 is connected to the front second sling assembly 17, and the other end of the front second sling assembly 17 is connected to the left front hanging ear 22 of the projectile 8.

[0012] The output shaft of the second servo electric cylinder 12 is connected to the first wire rope sling 13, and the first wire rope sling 13 is wound around the rear guide wheel device 52 and the rear pulley assembly 72 in sequence. The end of the first wire rope sling 13 wound around the rear pulley assembly 72 is connected to the rear second sling assembly 15, and the other end of the rear second sling assembly 15 is connected to the right front hanging ear 24 of the projectile 8.

[0013] A left rear hanging ear 21 and a right rear hanging ear 23 are also provided on the body 8 , wherein the left rear hanging ear 21 is connected to the hanging beam 3 through the front first sling assembly 11 , and the right rear hanging ear 23 is connected to the hanging beam 3 through the rear first sling assembly 14 .

[0014] Furthermore, the front guide wheel device 51 is vertically arranged with the front pulley assembly 71, and the rear guide wheel device 52 is vertically arranged with the rear pulley assembly 72, so as to facilitate the front second sling assembly 17 and the rear second sling assembly 15 to turn around and connect with the projectile 8 below.

[0015] It should be noted that both the first servo electric cylinder 19 and the second servo electric cylinder 12 use explosion-proof motors, and the electric cylinders use trapezoidal lead screws with a mechanical self-locking function to prevent the suspended object from sliding when the electric cylinder fails. The steel wire ropes in the first steel wire rope sling 13 and the second steel wire rope sling 16 are required to be galvanized and oil-free.

[0016] Furthermore, an anti-rope-slipping device 4 is provided in both the front guide wheel device 51 and the rear guide wheel device 52 , and the anti-rope-slipping device 4 is a prior art.

[0017] Furthermore, the front pulley assembly 71 and the rear pulley assembly 72 are both covered with pulley covers 6 .

[0018] Furthermore, a hook shaft connecting device 1 is provided on the lifting beam 3, and a hook shaft is assembled on the hook shaft connecting device 1. When lifting, the hook is hung on the hook shaft.

[0019] Furthermore, the suspension beam 3 is connected to a support frame 20 through an auxiliary connection device 2, and an explosion-proof electric control cabinet 9 is installed on the support frame 20. The explosion-proof electric control cabinet 9 meets the EXbIIBT4 explosion-proof grade requirements.

[0020] Furthermore, the main body material of the hanging beam 3 is HG785D, and the pin hole needs to be obtained through integral processing.

[0021] Furthermore, when the sling of the present invention is not in use / lifting, it is placed on the sling fixing bracket 18, such as Figure 3 As shown, in order to balance the entire lifting device, a counterweight box 10 is provided at one end of the lifting device.

[0022] The working principle of the present invention is: The sling is connected to the crane via a hook, and four lifting ears are arranged on the body 8, which are connected to the lifting beam 3 via a front first sling assembly 11, a front second sling assembly 17, a rear first sling assembly 14, a rear second sling assembly 15, a first wire rope sling 13 and a second wire rope sling 16.

[0023] Among them, the left rear hanging ear 21 is connected to the hanging beam 3 through the front first sling assembly 11, and the right rear hanging ear 23 is connected to the hanging beam 3 through the rear first sling assembly 14, and these two ends are fixedly connected. In addition, the first servo electric cylinder 19 is connected to the left front hanging ear 22 of the projectile 8 through the second wire rope sling 16, the front guide wheel device 51, the front pulley assembly 71 and the front second sling assembly 17; and the second servo electric cylinder 12 is connected to the right front hanging ear 24 of the projectile 8 through the first wire rope sling 13, the rear guide wheel device 52, the rear pulley assembly 72 and the rear second sling assembly 15. These two ends are controlled by servo electric cylinders respectively. The two servo electric cylinders are independently controlled by the electrical system, and the projectile 8 can be adjusted within the travel range, which is fast and efficient. Figure 4 shown.

[0024] The tumbling action of the projectile 8 is driven by two sets of servo electric cylinders. The cylinder body is equipped with three explosion-proof proximity switches (two limit proximity switches and one origin switch), which meet the requirements of EXbIIBT4 explosion-proof grade. The two limit proximity switches can limit the stroke of the electric cylinder to ensure that even if the electric cylinder loses control, it will not exceed the stroke. The origin switch is used to calibrate the origin.

[0025] In the electrical control of the present invention, the power line is led from the cable reel arranged on the trolley to the explosion-proof junction box (installed on the hook of the sling), and then transferred from the explosion-proof junction box to the explosion-proof electric control cabinet 9. The explosion-proof electric control cabinet 9 is equipped with complete protection measures such as power undervoltage, overvoltage, phase loss, overcurrent, short circuit, etc.

[0026] In addition, the first servo electric cylinder 19 and the second servo electric cylinder 12 of the spreader are connected to the spreader PLC. The spreader PLC communicates with the crane PLC through a network cable (Ethernet communication). The crane PLC can collect the working status of the spreader in real time. The spreader PLC communicates with the servo driver through the EtherCAT bus. There is an inching control button on the crane remote control. When the inching button is pressed, the servo electric cylinder moves respectively, and the feeding direction is selected by the two-position dial switch.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, which should also be regarded as the scope of protection of the present invention.

Claims

1. A special lifting device for projectile handling and fine-tuning, characterized by: It comprises a hanging beam (3), on which a first servo electric cylinder (19) and a second servo electric cylinder (12) are arranged, wherein: The output shaft of the first servo electric cylinder (19) is connected to the second steel wire rope sling (16), the second steel wire rope sling (16) is wound around the front guide wheel device (51) and the front pulley assembly (71) in sequence, the end of the second steel wire rope sling (16) wound around the front pulley assembly (71) is connected to the front second sling assembly (17), and the other end of the front second sling assembly (17) is connected to the left front hanging ear (22) of the projectile body (8); The output shaft of the second servo electric cylinder (12) is connected to the first wire rope sling (13), the first wire rope sling (13) is wound around the rear guide wheel device (52) and the rear pulley assembly (72) in sequence, the end of the first wire rope sling (13) wound around the rear pulley assembly (72) is connected to the rear second sling assembly (15), and the other end of the rear second sling assembly (15) is connected to the right front hanging ear (24) of the projectile body (8); A left rear hanging ear (21) and a right rear hanging ear (23) are also provided on the body (8), wherein the left rear hanging ear (21) is connected to the hanging beam (3) via a front first sling assembly (11), and the right rear hanging ear (23) is connected to the hanging beam (3) via a rear first sling assembly (14); The front guide wheel device (51) and the front pulley assembly (71) are arranged vertically, and the rear guide wheel device (52) and the rear pulley assembly (72) are arranged vertically; An anti-rope-slip device (4) is provided in both the front guide wheel device (51) and the rear guide wheel device (52); The front pulley assembly (71) and the rear pulley assembly (72) are both covered with pulley covers (6); The hanging beam (3) is provided with a hook shaft connecting device (1), and the hook shaft connecting device (1) is equipped with a hook shaft.

2. A special lifting device for projectile transport and fine adjustment according to claim 1, characterized in that: The first servo electric cylinder (19) and the second servo electric cylinder (12) both use explosion-proof motors.

3. The special lifting device for projectile transport and fine adjustment according to claim 1, characterized in that: The hanging beam (3) is connected to a support frame (20) via an auxiliary connection device (2), and an explosion-proof electric control cabinet (9) is installed on the support frame (20). The explosion-proof electric control cabinet (9) meets the requirements of EXbIIBT4 explosion-proof grade.

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