Automatic bolt connection type for upper frame and lifting appliance

Abstract

The utility model provides an automatic bolt connection type for an upper frame and a lifting appliance, which relates to the technical field of special hoisting machinery, and comprises a bolt hydraulic driving system, a lifting appliance upper frame and a lifting appliance, the lifting appliance upper frame is provided with a plurality of upper frame pin holes, the lifting appliance upper frame is provided with mounting gaps at the upper frame pin holes, the lifting appliance is arranged in the mounting gaps, and the lifting appliance is connected with the bolt hydraulic driving system. The lifting appliance is provided with lifting appliance pin holes corresponding to the upper frame pin holes, the lower portion of the upper frame structural beam is connected with a plug pin shaft through a hydraulic drive oil cylinder, the plug pin shaft is arranged corresponding to the upper frame pin holes, and a plug pin guide sleeve is arranged on one side of the lifting appliance upper frame and corresponds to the upper frame pin holes, so that a manual mode is changed into an automatic mode, convenience and rapidness are achieved, and manpower and operation time are saved.

Description

An automatic pin connection type for mounting and lifting devices Technical Field

[0001] This utility model relates to the field of special lifting machinery technology, specifically to an automatic pin connection type between the upper frame and the lifting device. Background Technology

[0002] A container spreader system is a specialized piece of equipment used for container loading and unloading operations. This system is widely used by quay cranes, rubber-tired gantry cranes, and rail-mounted gantry cranes for container lifting operations. A container spreader system generally consists of a spreader and a spreader frame connected together. There are generally two common connection methods between the spreader and the frame: a pivot pin connection and a bolt-lock connection. Bolt-lock connections typically use manual bolts, which have the following disadvantages in practical use:

[0003] The pin shaft is relatively heavy, weighing about 25kg. There are four pins. If the manual pin connection method is used, each pin needs to be operated individually, which takes a long time, is laborious, and is cumbersome, requiring a high level of skill from the operator. Summary of the Invention

[0004] To achieve the above objectives, one or more embodiments of this utility model provide the following technical solutions.

[0005] This utility model proposes an automatic pin connection type between the upper frame and the lifting device, including a pin hydraulic drive system, a lifting device upper frame, and a lifting device. The lifting device upper frame is provided with a plurality of upper frame pin holes. The lifting device upper frame is provided with an installation gap at the upper frame pin holes. The lifting device is installed within the installation gap. The lifting device is provided with a lifting device pin hole corresponding to the upper frame pin hole. The lower part of the structural beam of the lifting device upper frame is connected to the pin shaft by a hydraulic drive cylinder. The pin shaft is provided with the upper frame pin hole. A pin guide sleeve is provided on one side of the lifting device upper frame and corresponding to the upper frame pin hole.

[0006] A further configuration includes a slack rope limit sensor located above the pin guide sleeve and a pin position sensing sensor located on one side of the pin guide sleeve.

[0007] A further configuration is provided, wherein the pin guide sleeve is provided with a notch, and the pin shaft is provided with a limiting block, the limiting block being movably disposed in the notch.

[0008] Further configured, the limiting block is parallel to the pin position sensing limiting sensor.

[0009] Further configuration involves placing the pin-driven hydraulic station on the upper panel of the lifting frame structure beam.

[0010] A further configuration involves installing a hydraulic cylinder support base under the upper structural beam, and installing a hydraulically driven cylinder on the vertical support base.

[0011] Further configuration involves the pin shaft, pin guide sleeve, upper frame pin hole, and lifting tool pin hole being coaxially aligned.

[0012] A further configuration is provided, wherein a pin guide sleeve is provided on one side of the upper frame of the spreader, and the pin guide sleeve extends into the upper frame of the spreader.

[0013] Further configured, the slack rope limit sensor is fixedly installed on one side of the lifting frame via a first mounting plate.

[0014] Further configured, the pin position sensing limit sensor is fixedly installed on one side of the lifting frame via a second mounting plate.

[0015] The beneficial effects of one or more of the above technical solutions:

[0016] The manual pin connection method has been improved by using one hydraulic station to control four hydraulic drive cylinders. Each hydraulic drive cylinder corresponds to a pin shaft, and the four pins are located at the four corners of the spreader frame. The hydraulic station is operated to drive the hydraulic cylinders to extend and retract, which in turn moves the pins. After the position of the pin shaft is identified by the inductive limit sensor, the disengagement and connection of the spreader and the frame are completed. This changes the manual method to an automatic one, which is convenient, fast, and saves manpower and operation time. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0018] Figure 1 is a schematic diagram of the structure of this utility model.

[0019] Figure 2 is a side view of this utility model.

[0020] Figure 3 is a structural schematic diagram of the pin guide sleeve of this utility model.

[0021] In the diagram, 1 is the upper frame structural beam; 2 is the connection structure between the upper frame and the lifting device; 3 is the lifting device; 4 is the upper frame pin hole; 5 is the positioning shaft; 6 is the lifting device pin hole; 7 is the hydraulic drive cylinder; 8 is the insertion pin shaft; 9 is the insertion pin guide sleeve; 10 is the slack rope limit sensor; 11 is the notch; 12 is the limit block; 13 is the hydraulic station; 14 is the support base; 15 is the first mounting plate; 16 is the second mounting plate; and 17 is the position sensing limit sensor. Detailed Implementation

[0022] The specific implementation of this embodiment will now be described with reference to the accompanying drawings.

[0023] An automatic pin connection type for the upper frame and the lifting device, as shown in Figures 1, 2 and 3, includes an upper frame structural beam 1, an upper frame and lifting device connection structure 2 and a lifting device 3. The lifting device connection structure 2 is fixedly installed at the end of the upper frame structural beam 1. The connection structure 2 is provided with several upper frame pin holes 4. An installation gap is provided at the pin holes 4 of the connection structure 2. The lifting device 3 is installed in the installation gap. The lifting device 3 is provided with a lifting device pin hole 6 corresponding to the upper frame pin hole 4. The lower part of the upper frame structural beam 1 is connected to the pin shaft 8 by a hydraulic drive cylinder 7. The pin shaft 8 is provided corresponding to the upper frame pin hole 4. A pin guide sleeve 9 is provided on one side of the connection structure 2 and corresponding to the upper frame pin hole 4. A hydraulic station 13 controls 4 hydraulic drive cylinders 7. Each hydraulic drive cylinder 7 corresponds to one pin shaft 8. The 4 pins are located at the 4 corners of the upper frame of the lifting device.

[0024] A slack rope limit sensor 10 is installed in the notch above the pin guide sleeve 9. The slack rope limit sensor 10 senses the container landing action of the spreader. The slack rope limit sensor senses the container landing action during spreader operation. When the spreader is not in contact with the container, the pin shaft is a certain distance away from the slack rope limit and cannot be sensed. After the spreader lands on the container, the wire rope that is lifting the frame will be slightly slack. At this time, the pin shaft will approach and sense the slack rope limit, and send a signal to the driver's cab to remind the operator that the container landing is successful. The spreader can then lock the pin and then lift or unload the container.

[0025] The pin guide sleeve 9 is provided with a side notch 11, and a limiting block 12 is provided on the pin shaft 8. The limiting block 12 is movably disposed in the notch 11. The limiting block 12 is parallel to the pin position sensing limit sensor. When the pin shaft 8 drives the limiting block 12 to move in front of the sensing limit sensor, the sensing limit sensor 17 recognizes the limiting block 12, indicating that the pin shaft 8 has been inserted into the lifting pin hole 6 and the upper frame pin hole 4.

[0026] A hydraulic station 13 is installed on the top of the upper structural beam 1. The hydraulic station 13 adopts the existing hydraulic system and is connected to the hydraulic drive cylinder 7 below through hydraulic pipes. The hydraulic station 13 controls the movement of the hydraulic drive cylinder 7, thereby controlling the cylinder to drive the end pin shaft 8 to extend and retract.

[0027] A support base 14 is installed below the upper structural beam 1. A hydraulic drive cylinder 7 is installed on the vertical support base 14. The hydraulic drive cylinder 7 is suspended below the upper structural beam 1 through the support base 14, so that the hydraulic drive cylinder 7 is perpendicular to the connecting structure 2. After the hydraulic drive cylinder 7 is activated, it pushes the pin shaft 8 into the pin hole.

[0028] The pin shaft 8, pin guide sleeve 9, upper frame pin hole 4, and lifting device pin hole 6 are coaxially arranged. The clearance between the pin and the pin hole on the lifting device 3 is very small. To ensure the pin is smoothly driven into the lifting device pin hole 6 by the hydraulic cylinder, the lifting device 3 and the upper frame need to be precisely positioned relative to each other. Precise positioning is achieved through the positioning shaft 5, which is mounted on the upper frame. The lifting device has a corresponding semi-circular arc structure that serves as a guide. When connecting the lifting device and the upper frame, the positioning shaft 5 will move along the arc structure on the lifting device. When the shaft 5 is in complete contact with the semi-circular arc, it indicates that the position has been reached and the pin can be engaged.

[0029] A pin guide sleeve 9 is provided on one side of the connecting structure 2. The pin guide sleeve 9 extends into the connecting structure 2 and guides the pin shaft 8 through the pin guide sleeve 9, so as to ensure that the pin shaft 8 can be accurately pushed into the upper frame pin hole 4 and the lifting tool pin hole 6 under the push of the hydraulic rod.

[0030] The slack rope limit sensor 10 is fixedly installed on one side of the connecting structure 2 via the first mounting plate 15, and the pin position sensing limit sensor is fixedly installed on one side of the connecting structure 2 via the second mounting plate 16. The slack rope limit sensor 10 and the pin position sensing limit sensor are stably installed on both sides of the pin guide sleeve 9 via the first mounting plate 15 and the second mounting plate 16.

[0031] The automatic connection principle is as follows:

[0032] After the pin shaft 8, pin guide sleeve 9, upper frame pin hole 4 and lifting tool pin hole 6 are coaxial, the hydraulic drive cylinder 7 simultaneously drives multiple pin shafts 8 to push the pin shafts 8 into the pin guide sleeve 9. When the pin shaft 8 drives the limit block 12 to move in front of the sensing limit sensor, the sensing limit sensor recognizes the limit block 12, indicating that the pin shaft 8 has been inserted into the lifting tool pin hole 6 and upper frame pin hole 4. The upper frame and the lifting tool have been connected and the next lifting operation can be carried out.

[0033] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A type of automatic pin connection between the frame and the lifting device, characterized in that, The system includes a hydraulic drive system for pins, a lifting frame, and a lifting device. The lifting frame is provided with several upper frame pin holes. An installation gap is provided at the upper frame pin holes on the lifting frame. The lifting device is installed within the installation gap. The lifting device is provided with a lifting device pin hole corresponding to the upper frame pin hole. The lower part of the upper frame structural beam is connected to a pin shaft via a hydraulic drive cylinder. The pin shaft is provided with a pin shaft corresponding to the upper frame pin hole. A pin guide sleeve is provided on one side of the lifting frame and corresponding to the upper frame pin hole.

2. The automatic pin connection type between the upper frame and the lifting device according to claim 1, characterized in that, A slack rope limit sensor is installed above the pin guide sleeve, and a pin shaft position sensing limit sensor is installed on one side of the pin guide sleeve.

3. The automatic pin connection type between the upper frame and the lifting device according to claim 1, characterized in that, The guide sleeve of the pin is provided with a notch, and the pin shaft is provided with a limiting block, which is movably disposed in the notch.

4. The automatic pin connection type between the upper frame and the lifting device according to claim 3, characterized in that, The limiting block is parallel to the pin position sensing limiting sensor.

5. The automatic pin connection type between the upper frame and the lifting device according to claim 1, characterized in that, A hydraulic station is installed on the top of the upper structural beam.

6. The automatic pin connection type between the upper frame and the lifting device according to claim 1, characterized in that, A hydraulic cylinder support seat is installed below the upper structural beam, and a hydraulically driven cylinder is installed on the vertical support seat.

7. The automatic pin connection type between the upper frame and the lifting device according to claim 1, characterized in that, The pin shaft, pin guide sleeve, upper frame pin hole, and lifting tool pin hole are coaxially arranged.

8. The automatic pin connection type between the upper frame and the lifting device according to claim 1, characterized in that, A pin guide sleeve is installed on one side of the upper frame of the lifting device, and the pin guide sleeve extends into the upper frame of the lifting device.

9. The automatic pin connection type between the upper frame and the lifting device according to claim 1, characterized in that, The slack rope limit sensor is fixedly installed on one side of the lifting frame via the first mounting plate.

10. The automatic pin connection type between the upper frame and the lifting device according to claim 1, characterized in that, The pin position sensing limit sensor is fixedly installed on one side of the lifting frame via the second mounting plate.

Images