Splicing type heavy electric lifting device

Abstract

The utility model relates to the field of lifting devices, and discloses a splicing type heavy electric lifting device which comprises two bases, hydraulic oil cylinders, longitudinal beams, cross beams, a hydraulic station and a hydraulic controller. The side walls of the two bases are connected through two parallel lower reinforcing ribs to form a bottom frame; the two sets of hydraulic oil cylinders are symmetrically installed on the two sides of the bases along the center line of each base, the two ends of the longitudinal beams are connected with the extending ends of the two sets of hydraulic oil cylinders on the same base in a clamped mode, the cross beam is installed above the two longitudinal beams in a crossing mode, two upper reinforcing ribs parallel to the cross beam are installed at the ends of the longitudinal beams on the two sides of the cross beam, and lifting lugs are installed at the bottom of the cross beam in a suspended mode. The hydraulic station is installed on the base between the two hydraulic oil cylinders, the hydraulic station is connected with the adjacent hydraulic oil cylinders, the hydraulic station is driven by the motor, and the hydraulic controller is used for controlling the hydraulic station to work. The split type building block can be split into small assemblies so as to be conveniently transported to a workshop with a small space to be assembled, and can adapt to various construction environments.

Description

Technical Field

[0001] This utility model relates to the field of lifting devices, and in particular to a modular heavy-duty electric lifting device. Background Technology

[0002] During equipment installation, a lifting device is needed to move the equipment to the installation site, and the equipment will be fine-tuned according to the commissioning steps. However, existing large and heavy lifting devices are inconvenient to assemble, which is extremely inconvenient for the installation and commissioning of large and heavy equipment. In addition, existing heavy lifting devices mainly use internal combustion engines as the power hub, and their exhaust gases will pollute the environment. Therefore, they are not suitable for use in enclosed places such as indoor spaces and cleanrooms. Utility Model Content

[0003] The purpose of this invention is to solve the problems in the background technology and provide a modular heavy-duty electric lifting device. This lifting device can be easily assembled, and the height is adjusted by using an electric motor in conjunction with a piston pump to control the extension and retraction of a hydraulic cylinder. It is not only suitable for lifting heavy equipment, but also does not produce exhaust gas and is suitable for lifting operations in factories with low heights.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A modular heavy-duty electric lifting device includes a base, hydraulic cylinders, longitudinal beams, crossbeams, a hydraulic station, and a hydraulic controller. There are two bases, with their sidewalls connected by two parallel lower reinforcing ribs to form a base frame. Two sets of hydraulic cylinders are symmetrically installed on both sides of each base along its centerline. The ends of the longitudinal beams are engaged with the extended ends of the two sets of hydraulic cylinders on the same base. The crossbeams span across the two longitudinal beams, with two upper reinforcing ribs parallel to the crossbeams installed at the ends of the longitudinal beams on both sides. Lifting lugs are suspended at the bottom of the crossbeams. The hydraulic station is installed on the base between the two hydraulic cylinders and is connected to adjacent hydraulic cylinders. The hydraulic station is driven by an electric motor, and the hydraulic controller controls the operation of the hydraulic station.

[0006] The extended end of the hydraulic cylinder is machined with a spherical connector, and the bottom surface of the longitudinal beam is machined with a spherical positioning groove that mates with the spherical connector.

[0007] The hydraulic station is equipped with a piston pump. The motor is connected to the piston pump via a coupling. The outlet of the piston pump is connected in sequence to a two-way three-position four-way valve, a cylinder balance valve, a solenoid relief valve, and a proportional solenoid valve. The proportional solenoid valve at the end is connected to the corresponding hydraulic cylinder.

[0008] An air cooler is installed above the hydraulic station to dissipate heat from the hydraulic station.

[0009] A proximity switch and a pull-wire sensor are installed on the base on one side of the hydraulic cylinder.

[0010] A hydraulic coil is installed on one side wall of the longitudinal beam.

[0011] The advantages of the modular heavy-duty electric lifting device provided by this utility model are:

[0012] (1) By setting a base and installing hydraulic cylinders, hydraulic stations, longitudinal beams and transverse beams on the base, it can be disassembled into small components for easy transportation and can be easily sent into a small factory for assembly, thus adapting to a variety of construction environments.

[0013] (2) By driving the hydraulic station with an electric motor, the noise of the lifting device during use is effectively reduced, and exhaust emissions are also avoided, which effectively ensures the construction environment in a confined space.

[0014] (3) By installing a spherical connector at the extended end of the hydraulic cylinder, the installation speed and efficiency of the longitudinal beam can be improved.

[0015] (4) By connecting a three-position four-way valve, a cylinder balance valve, a solenoid relief valve and a proportional solenoid valve in sequence on the hydraulic station, the pressure in the cylinder can be balanced and adjusted through the combination of the cylinder balance valve, the solenoid relief valve and the proportional solenoid valve, preventing the cylinder from tilting due to external interference, and thus effectively ensuring the normal operation of the lifting device.

[0016] (5) By installing an air cooler, the heat generated by the hydraulic station during operation can be dissipated, which improves the stability of the hydraulic station operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram provided for an embodiment of the present utility model.

[0019] Figure 2 This is a side view structural diagram provided for an embodiment of the present utility model.

[0020] Figure 3 A schematic diagram of the hydraulic station provided in an embodiment of this utility model.

[0021] Reference numerals: 1. Base; 2. Hydraulic cylinder; 21. Spherical connector; 3. Longitudinal beam; 31. Spherical positioning groove; 4. Crossbeam; 41. Lifting lug; 5. Hydraulic station; 51. Piston pump; 52. Three-position four-way valve; 53. Cylinder balance valve; 54. Solenoid relief valve; 55. Proportional solenoid valve; 6. Hydraulic controller; 7. Lower reinforcing rib; 8. Upper reinforcing rib; 9. Electric motor; 10. Air cooler; 11. Proximity switch; 12. Pull-wire sensor; 13. Hydraulic pipe coil. Detailed Implementation

[0022] Example

[0023] like Figures 1-3 As shown, the modular heavy-duty electric lifting device provided in this embodiment includes a base 1, hydraulic cylinders 2, longitudinal beams 3, crossbeams 4, a hydraulic station 5, and a hydraulic controller 6. There are two bases 1, and the side walls of the two bases 1 are connected by two parallel lower reinforcing ribs 7 to form a bottom frame. The two lower reinforcing ribs 7 greatly improve the stability of the electric lifting device. Two sets of hydraulic cylinders 2 are symmetrically installed on both sides of each base 1 along the centerline. The two ends of the longitudinal beam 3 are engaged with the extended ends of the two sets of hydraulic cylinders 2 on the same base 1. The extended ends of the hydraulic cylinders 2 are machined with spherical connectors 21. The bottom surface of the longitudinal beam 3 is machined with spherical positioning grooves 31 that mate with the spherical connectors 21. The crossbeam 4 is installed across the two longitudinal beams 3, enabling rapid self-centering and locking, thereby reducing the swaying of the longitudinal beams 3. The ends of the longitudinal beams 3 on both sides of the crossbeam 4... The unit is equipped with two upper reinforcing ribs 8 parallel to the crossbeam 4. The bottom of the crossbeam 4 is suspended by a lifting lug 41, which is located in the middle of the crossbeam 4. This ensures that the center of the suspended object is located in the center of the electric lifting device, effectively guaranteeing stability. The hydraulic station 5 is installed on the base 1 between the two hydraulic cylinders 2. The hydraulic station 5 is connected to the adjacent hydraulic cylinder 2. The hydraulic station 5 is driven by an electric motor 9. The use of an electric motor 9 for driving does not produce exhaust gas, ensuring the environmental conditions in the factory. The hydraulic controller 6 is used to control the operation of the hydraulic station 5. The hydraulic controller 6 uses a PLC controller as the control core and is equipped with a Samkoon industrial touch screen. It uses a 380V power supply for starting and simultaneously drives the two hydraulic stations 5 through two 4kW electric motors 9. Each hydraulic station 5 controls two hydraulic cylinders 2 to lift the object.

[0024] To improve the stability of the lifting device, such as Figure 3 As shown, a piston pump 51 is installed on the hydraulic station 5. The motor 9 is connected to the piston pump 51 through a coupling. The outlet of the piston pump 51 is connected in sequence to a two-way three-position four-way valve 52, a cylinder balance valve 53, a solenoid relief valve 54 and a proportional solenoid valve 55. The proportional solenoid valve 55 at the end is connected to the corresponding hydraulic cylinder 2.

[0025] The valve core of the three-position four-way valve 52 has three positions. When the valve core moves to the left position, the hydraulic cylinder 2 moves upward; when the valve core moves to the right position, the hydraulic cylinder 2 moves downward; when the valve core moves to the middle position, the hydraulic cylinder 2 stops. Each hydraulic cylinder 2 is equipped with one three-position four-way valve 52.

[0026] The hydraulic cylinder balance valve 53 is used to prevent overweight goods from suddenly falling. It plays a crucial role in the hydraulic system, primarily by balancing and regulating the pressure within the cylinder to prevent tilting due to external interference, thus ensuring stable operation of the hydraulic system. The hydraulic cylinder balance valve 53 automatically regulates the internal pressure of the cylinder, preventing excessively high or low pressure, thereby protecting the equipment and improving work efficiency.

[0027] The proportional solenoid valve 55 uses the magnetic field generated by energizing an electromagnet to push the valve core, thereby controlling the degree of valve opening and closing, realizing the regulation of medium flow, constant pressure overflow, pressure stabilization, system unloading and safety protection.

[0028] Because the hydraulic station 5 generates a large amount of heat during operation, an air cooler 10 is installed above it to ensure its stability. The air cooler 10 dissipates heat from the hydraulic station 5 by transferring the heat generated in the hydraulic system to the surrounding air through air-cooled heat exchange. The air cooler 10 mainly includes a radiator, a fan, and air ducts. Heat from the hydraulic system is radiated away through the radiator's heat dissipation area, and the fan drives external air to flow over the radiator, accelerating heat dissipation. The air duct design improves airflow and increases heat exchange efficiency.

[0029] To ensure the smooth operation of the four hydraulic cylinders 2, a proximity switch 11 and a pull-wire sensor 12 are installed on the base 1 on one side of each hydraulic cylinder 2. The hydraulic controller 6 adjusts the operating speed of each hydraulic cylinder 2 based on the information fed back from the proximity switch 11 and the pull-wire sensor 12 to ensure the stability of the lifting device.

[0030] A hydraulic pipe disc 13 is installed on one side wall of the longitudinal beam 3.

[0031] The method of using this utility model is as follows:

[0032] During assembly, workers use a forklift to transport the base plate and the hydraulic cylinder 2 and hydraulic pump station mounted on the base plate as a single unit to the lifting area. Then, the two base plates are connected together using the lower reinforcing rib 7. Next, the forklift installs the longitudinal beam 3 and cross beam 4, which are connected as a whole, onto the hydraulic cylinder 2.

[0033] During use, the operator controls the hydraulic cylinder 2 to rise or fall by operating the buttons on the industrial touch screen to lift the item. During the lifting process, the wire sensor 12 is used to ensure the consistency of the four hydraulic cylinders 2, thereby ensuring the smooth operation of the lifting device.

[0034] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any modifications and substitutions based on the technical solutions and inventive concepts provided by this utility model should be covered within the protection scope of this utility model. It should be noted that the structures or components illustrated in the accompanying drawings are not necessarily drawn to scale, and descriptions of well-known components, processing technologies, and processes are omitted to avoid unnecessarily limiting this utility model.

Claims

1. A modular heavy-duty electric lifting device, comprising a base (1), hydraulic cylinders (2), longitudinal beams (3), crossbeams (4), a hydraulic station (5), and a hydraulic controller (6), wherein there are two bases (1), the side walls of the two bases (1) are connected by two parallel lower reinforcing ribs (7) to form a bottom frame, two sets of hydraulic cylinders (2) are symmetrically installed on both sides of the base (1) along the centerline of each base (1), and the two ends of the longitudinal beam (3) are engaged with the extended ends of the two sets of hydraulic cylinders (2) on the same base (1). The crossbeam (4) is installed across two longitudinal beams (3). Two upper reinforcing ribs (8) parallel to the crossbeam (4) are installed at the ends of the longitudinal beams (3) on both sides of the crossbeam (4). The bottom of the crossbeam (4) is suspended by a lifting lug (41). The hydraulic station (5) is installed on the base (1) between two hydraulic cylinders (2). The hydraulic station (5) is connected to the adjacent hydraulic cylinder (2). The hydraulic station (5) is driven by an electric motor (9). The hydraulic controller (6) is used to control the operation of the hydraulic station (5).

2. The modular heavy-duty electric lifting device according to claim 1, characterized in that: The extended end of the hydraulic cylinder (2) is machined with a spherical connector (21), and the bottom surface of the longitudinal beam (3) is machined with a spherical positioning groove (31) that mates with the spherical connector (21).

3. The modular heavy-duty electric lifting device according to claim 1, characterized in that: The hydraulic station (5) is equipped with a piston pump (51). The motor (9) is connected to the piston pump (51) through a coupling. The outlet of the piston pump (51) is connected in sequence to a two-way three-position four-way valve (52), a cylinder balance valve (53), an electromagnetic relief valve (54), and a proportional solenoid valve (55). The proportional solenoid valve (55) at the end is connected to the corresponding hydraulic cylinder (2).

4. The modular heavy-duty electric lifting device according to claim 1, characterized in that: An air cooler (10) is installed above the hydraulic station (5) to dissipate heat from the hydraulic station (5).

5. The modular heavy-duty electric lifting device according to claim 1, characterized in that: A proximity switch (11) and a pull-wire sensor (12) are installed on the base (1) on one side of the hydraulic cylinder (2).

6. The modular heavy-duty electric lifting device according to claim 1, characterized in that: A hydraulic tube disc (13) is installed on the side wall of one side of the longitudinal beam (3).

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