Lifting appliance for lifting steel drum

Abstract

The utility model discloses a lifting appliance for lifting a steel drum, which belongs to the technical field of steel drum lifting appliance equipment and comprises a lifting ring and an outer cover, a telescopic component is arranged below the lifting ring, a telescopic limit switch is mounted on the telescopic component, an extension bar is mounted below the telescopic component, a control box is mounted on the extension bar, and the control box is connected with the outer cover. And an outer cover is installed below the lengthening rod, a positioning base is installed at the bottom of the outer cover, and a hoisting head is arranged in the middle of the interior of the positioning base. The 400L barrel electric lifting appliance disclosed by the utility model can be suitable for 400L steel barrels with at least two interface sizes, the disposal efficiency is improved, the disposal cost is reduced, telescopic signal feedback is provided, and safe interlocking of equipment and a lifting tool is ensured. The lifting appliance disclosed by the utility model cannot be stuck in the use process, and unhooking can be remotely controlled. According to the 400L barrel electric lifting appliance disclosed by the utility model, a fitting detection signal is added, so that the lifting appliance is ensured to be effectively centered and fitted with a steel barrel, and the reliability of the grabbing action of the lifting appliance is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of steel drum hoisting equipment, and more specifically, to a hoisting device for hoisting steel drums. Background Art

[0002] The existing 400L single barrel is mainly hoisted by mechanical automatic opening and closing claw hoist. Due to the influence of the opening and closing structure of the hoisting claw, each hoist is only suitable for one type of steel barrel. Since the standard 400L steel barrel hoisting interface in the nuclear power industry is diverse, frequent switching of hoists according to the barrel type is not conducive to production efficiency and economic benefits. In addition, due to the characteristics of the structure itself, conventional mechanical automatic opening and closing claw hoists frequently get stuck during use, resulting in the inability to remotely unhook. In order to improve the disposal efficiency and disposal safety, the design requirements for electric hoists suitable for at least two types of 400L barrel hoisting are proposed. Utility Model Content

[0003] 1. Technical problems to be solved

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a sling for lifting steel drums, which can achieve effective centering and fitting of the sling and the steel drum, provide telescopic signal feedback, ensure the safe interlocking of the equipment and the lifting tool, will not get stuck during use, and can be remotely controlled to unhook.

[0005] 2. Technical solution

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A sling for lifting a steel drum comprises a lifting ring and an outer cover, a telescopic assembly is provided below the lifting ring, a telescopic limit switch is installed on the telescopic assembly, an extension rod is installed below the telescopic assembly, a control box is installed on the extension rod, an outer cover is installed below the extension rod, a positioning base is installed at the bottom of the outer cover, and a lifting head is provided in the middle of the positioning base.

[0008] According to the above characteristics, the specification of the lifting equipment for lifting the steel barrel is 400L.

[0009] In some embodiments, the 400L barrel electric hoist positioning base is designed with internal and external guides, and the centering positioning of the 400L steel barrel and the hoist with two different lifting interfaces is achieved through the internal and external guides.

[0010] According to the above features, the 400L barrel electric lifter is designed with 4 rotating lifting heads, and the synchronous rotation control of the 4 lifting heads is achieved by driving the turntable through the driving motor.

[0011] In some embodiments, the 400L barrel electric lift is provided with an opening and closing signal of a claw, and the action of the claw drive motor is controlled by an opening and closing claw detection switch, and the signal is fed back to the control box.

[0012] According to the above features, the sling is used for a crane, the telescopic limit switch is used to feed back a descending signal of the CNC crane, and the telescopic limit signal is fed back to a control box.

[0013] In some embodiments, the 400L barrel electric lifter is provided with a fit detection switch for providing feedback on the fit status between the lifter and the 400L barrel cover, and feeding back the signal to the control box.

[0014] According to the above features, the lifting head and the connecting rod are connected by a transmission key, the driving motor drives the driving gear to rotate, and the driving gear is meshed with the rotating gear.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1) The 400L drum electric hoist described in the utility model can be applied to 400L steel drums with at least 2 interface sizes, thereby improving the handling efficiency, reducing the handling cost, providing telescopic signal feedback, and ensuring the safety interlocking of the equipment and the lifting tool.

[0018] 2) The 400L drum electric lifter described in the utility model adds a fitting detection signal to ensure that the lifter and the steel drum are effectively aligned and fitted, and that the lifting action of the lifter is reliable.

[0019] 3) The 400L drum electric hoist described in the utility model has a synchronous action of the hoisting head, and a sufficient gap is reserved between the hoisting head and the steel drum grabbing position to ensure the reliability of the hoisting claw release. The open and close claw signal feedback is provided to facilitate equipment status feedback and operation.

[0020] 4) The sling of the utility model will not get stuck during use and can be unhooked by remote control. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a lifting device for lifting a steel drum according to the utility model;

[0022] Figure 2 This is a first structural schematic diagram of the outer cover of the utility model;

[0023] Figure 3 This is a second structural schematic diagram of the outer cover of the utility model;

[0024] Description of the numbers in the figure:

[0025] 1. Lifting ring; 2. Telescopic limit switch; 3. Telescopic assembly; 4. Extension rod; 5. Control box; 6. Outer cover; 61. Rotating gear; 62. Driving gear; 63. Driving motor; 64. Turntable; 65. Connecting rod; 66. Fitting detection switch; 67. Opening and closing claw detection switch; 7. Positioning base; 8. Lifting head. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0027] Embodiment 1:

[0028] See also Figure 1-3 A sling for lifting a steel drum comprises a lifting ring 1 and an outer cover 6, a telescopic component 3 is provided below the lifting ring 1, a telescopic limit switch is installed on the telescopic component 3, an extension rod 4 is installed below the telescopic component 3, a control box 5 is installed on the extension rod 4, an outer cover 6 is installed below the extension rod 4, a positioning base 7 is installed at the bottom of the outer cover 6, a lifting head 8 is provided in the middle of the positioning base 7, and the specification of the sling for lifting the steel drum is 400L.

[0029] In some embodiments, the 400L barrel electric hoist positioning base 7 is designed with internal and external guides, and the internal and external guides are used to realize the centering positioning of the 400L steel barrel with two different lifting interfaces and the hoist. The 400L barrel electric hoist is designed with four rotating hoisting heads 8, and the four hoisting heads 8 are synchronously rotated and controlled by driving the turntable through the driving motor 63.

[0030] In some embodiments, the 400L barrel electric hoist is provided with a claw opening and closing signal, and the action of the claw driving motor 63 is controlled by the opening and closing claw detection switch 67, and the signal is fed back to the control box 5. The hoist is used for the crane, and the telescopic limit switch is used to feedback the descending signal of the CNC crane, and the telescopic limit signal is fed back to the control box 5.

[0031] In some embodiments, the 400L barrel electric hoist is provided with a fitting detection switch 66, which is used to feedback the fitting state of the hoist and the 400L barrel cover, and at the same time feed back the signal to the control box 5. The hoisting head 8 is connected to the connecting rod 65 by a transmission key, and the driving motor 63 drives the driving gear 62 to rotate, and the driving gear 62 is engaged with the rotating gear 61.

[0032] The utility model communicates with the lifting tool through the PLC in the lifting tool control box, and feeds back the lifting tool related parameters in real time to the lifting tool for cooperating with the lifting tool. At the same time, the lifting tool PLC system reads the DB module number in the lifting tool control box to identify the lifting tool model it is carrying.

[0033] The utility model connects the lifting tool through a lifting ring to fix the lifting device; the lifting device balance adjustment and position locking (to avoid shaking) are achieved by matching the tightening screw on the lifting ring 1 with the rigid lifting tool; the lifting device descent feedback and the application of a certain tilt angle are achieved through the telescopic component 3, and the descent signal is fed back to the upper computer control box 5 for display; the guide port of the positioning base 7 is used to achieve the docking of the lifting interfaces of two specifications of 400L steel drums to ensure the alignment of the lifting device and the steel drum.

[0034] The utility model uses the fitting signal to feedback the fitting status of the sling and the 400L barrel cover, ensuring that the lifting claw is lowered into place before the sling closes its claws, and the lifting is absolutely reliable after the claws are retracted (if there is no such signal, only the telescopic signal is triggered, there may be problems such as tilting and lowering, and the claws cannot be grasped normally after retracting). The fitting signal uses multiple position detection to ensure that at least two diagonal signals exist as effective signals to avoid improper fitting caused by deformation of the barrel cover (the lifting claw has a certain height gap in the vertical direction to ensure the reliability of the lifting claw retraction after the fitting signal is triggered). The fitting signal is fed back to the control box 5 and the host computer, so that the operator can understand the fitting status of the sling and the steel barrel from multiple locations.

[0035] The driving motor 63 drives the driving gear 62 to rotate, the driving gear 62 meshes with the rotating gear 61, the rotating gear moving circle is connected to the turntable 64, the rotating gear fixed circle is connected to the guide base, and the turntable 64 is connected to the connecting rod 65 through the pin shaft, so that the rotation of the turntable 64 is converted into the swing of the connecting rod 65. The connecting rod 65 is connected to the lifting head 8 by a transmission key, and the 90° flapping of the connecting rod is converted into a 90° rotation of the lifting head, so as to realize the switching of the open and closed claws of the lifting head 8.

[0036] The signal interaction between the spreader and the lifting tool is realized through the PLC and DB module in the control box 5, including the spreader's arrival signal feedback, the spreader's rotation angle control and feedback, and the spreader model identification.

[0037] The 400L drum electric hoist has an overall size of φ670×1670, and its main structure is made of carbon steel and alloy steel. The hoist is suitable for hoisting at least two types of steel drums, and has four hoisting heads 8, mechanical claws that automatically open and close synchronously and have feedback on lowering into place, feedback on the fit of the hoist and the drum, feedback on the opening and closing of the hoist claws, and communication between the hoist and the lifting tool.

[0038] The motor drives 63 to rotate the gear, driving the connecting rod 65 to swing, and the connecting rod 65 drives the lifting head 8 to rotate, realizing the opening and closing of the claws of the lifting device, and feeding back the opening and closing signals of the claws to the upper computer end and the control box 5.

[0039] The lifting height is controlled by telescopic signals to avoid over-lowering of the lifting device and damaging the lifting device or steel drum. The docking status of the lifting device and the steel drum is fed back by the fitting signal to avoid misalignment of the lifting device and the phenomenon of claws falling off. The lifting device and the lifting tool can communicate, and the lifting device parameters can be fed back to the lifting tool system in real time to cooperate with the lifting tool for lifting work. The lifting tool can read the lifting device model to facilitate the full automation transformation of the disposal system.

[0040] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A lifting device for lifting a steel drum, comprising a lifting ring (1) and an outer cover (6), characterized in that: A telescopic component (3) is provided below the lifting ring (1), a telescopic limit switch (2) is installed on the telescopic component (3), an extension rod (4) is installed below the telescopic component (3), a control box (5) is installed on the extension rod (4), an outer cover (6) is installed below the extension rod (4), a positioning base (7) is installed at the bottom of the outer cover (6), and a lifting head (8) is provided in the middle of the interior of the positioning base (7).

2. The lifting device for lifting a steel drum according to claim 1, characterized in that: The specification of the lifting equipment for lifting the steel barrel is 400L.

3. The lifting device for lifting a steel drum according to claim 2, characterized in that: The 400L drum electric hoist positioning base (7) is designed with internal and external guides, and the centering positioning of the 400L steel drum with two different hoisting interfaces and the hoist is realized through the internal and external guides.

4. The lifting device for lifting a steel drum according to claim 3, characterized in that: The 400L barrel electric hoist is designed with four rotating hoisting heads (8), and the four hoisting heads (8) are synchronously rotated and controlled by driving a turntable (64) through a driving motor (63).

5. The lifting device for lifting a steel drum according to claim 3, characterized in that: The 400L barrel electric lifting device is provided with a claw opening and closing signal, and controls the action of the claw driving motor (63) through an opening and closing claw detection switch (67), and feeds back the signal to the control box (5).

6. The lifting device for lifting a steel drum according to claim 2, characterized in that: The sling is used for a crane, and the telescopic limit switch (2) is used to feed back a descending signal of the numerically controlled crane, and the telescopic limit signal is fed back to a control box (5).

7. The lifting device for lifting a steel drum according to claim 3, characterized in that: The 400L barrel electric lifting device is provided with a fitting detection switch (66) for feeding back the fitting state between the lifting device and the 400L barrel cover, and feeding back the signal to the control box (5).

8. The lifting device for lifting a steel drum according to claim 2, characterized in that: The hoisting head (8) and the connecting rod (65) are connected by a transmission key, and the driving motor (63) drives the driving gear (62) to rotate, and the driving gear (62) is meshed with the rotating gear (61).

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