Quick synchronous lifting device with self-locking function

Abstract

The utility model relates to a quick synchronous lifting device capable of self-locking, which comprises a frame assembly, a turbine lifting assembly and an oil cylinder lifting assembly are mounted on the frame assembly, the turbine lifting assembly and the oil cylinder lifting assembly work independently, and the turbine lifting assembly and the oil cylinder lifting assembly are jointly connected with a heat preservation furnace mounting piece. The four turbine and worm lifting assemblies are connected in series for synchronous lifting, meanwhile, the four plunger type oil cylinders are designed in the middle for offsetting all lifting force during lifting, through the mode that the turbine lifting assemblies and the oil cylinder lifting assemblies are combined, the turbine and worm devices achieve lifting synchronization and self-locking, and the plunger type oil cylinders achieve the rapid lifting function. The working efficiency of the lifting device is improved, meanwhile, the problem that the lifting device is rapidly abraded due to high-frequency use is solved, and the service life of the whole device is prolonged.

Description

Technical Field

[0001] This utility model relates to a lifting device, and more particularly to a self-locking, fast synchronous lifting device, which is mainly applicable to the lifting of the holding furnace in low-pressure casting equipment. Background Technology

[0002] Lifting of the holding furnace in low-pressure casting equipment is typically done using a lifting device. However, the holding furnace itself is quite heavy, and molten aluminum needs to be added inside, so the load on the lifting device is variable. Conventional lifting devices can achieve normal lifting, but they cannot operate quickly at the same time, especially with large lifting strokes and heavy loads, which can easily lead to insufficient power and pose significant safety risks.

[0003] Therefore, this utility model is proposed. Utility Model Content

[0004] In view of the above-mentioned technical problems of the prior art, the purpose of this utility model is to provide a self-locking rapid synchronous lifting device. By combining the turbine lifting component and the hydraulic cylinder lifting component, it can achieve both synchronous lifting and self-locking, as well as rapid lifting function, thereby improving the working efficiency of the lifting device. At the same time, it solves the problem of rapid wear and tear from high-frequency use of the lifting device and extends the service life of the entire device.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A self-locking, rapid synchronous lifting device includes a frame assembly, on which a turbine lifting assembly and a hydraulic cylinder lifting assembly are mounted. The turbine lifting assembly and the hydraulic cylinder lifting assembly operate independently of each other, and the turbine lifting assembly and the hydraulic cylinder lifting assembly are jointly connected to a heat preservation furnace mounting component.

[0007] The frame assembly includes frame one and frame two. Each of frame one and frame two is provided with two turbine lifting assemblies and two hydraulic cylinder lifting assemblies, with the two hydraulic cylinder lifting assemblies located inside the two turbine lifting assemblies.

[0008] The hydraulic cylinder lifting assembly includes a plunger-type lifting cylinder, the upper end of which is connected to the heat preservation furnace mounting component, and the lower end of which is connected to the hydraulic system.

[0009] The turbine lifting assembly includes a turbine housing, which contains a turbine and a worm gear. The turbine meshes with the worm gear, and the end of the worm gear is connected to a heat preservation furnace mounting component. A transmission rod for driving the turbine is connected to the outside of the turbine housing. The end of the transmission rod is connected to a transmission box. The transmission boxes on frame one and frame two are connected by a drive rod, and the transmission box on frame one is connected to a drive motor. The drive rod is driven by the drive motor.

[0010] The first and second frames have the same structure, both including a base and an upper plate. The base and the upper plate are connected by a column, and the heat preservation furnace mounting component is located above the upper plate.

[0011] An extreme position adjustment device is installed between the base and the upper plate, and the extreme position adjustment device is located between the two hydraulic cylinder lifting components.

[0012] The limit position adjustment device includes a support column installed on the base, an adjustment rod inside the support column, an adjustment nut outside the adjustment rod, a clamping nut on the upper part of the adjustment nut, the lower end of the adjustment rod being inserted into the support column, and the upper end of the adjustment rod being connected to the upper plate.

[0013] A support base is provided below the drive rod.

[0014] A positioning sensor is installed on the frame.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention relates to a self-locking, rapid synchronous lifting device. It consists of four worm gear lifting assemblies connected in series for synchronous lifting, with four plunger-type hydraulic cylinders in the center to counteract all lifting forces. Through the combination of the worm gear lifting assemblies and the hydraulic cylinder lifting assemblies, the worm gear mechanism achieves synchronous lifting and self-locking, while the plunger cylinders enable rapid lifting, improving the working efficiency of the lifting device. This also solves the problem of rapid wear from high-frequency use, extending the overall service life of the device. This invention uses auxiliary hydraulic cylinder lifting assemblies to offset the significant weight of the holding furnace itself. Since the molten aluminum inside the furnace is relatively light, the worm gear lifting assemblies provide the power for lifting. These worm gear lifting assemblies are synchronous, stable, and have sufficient safety performance, along with synchronization and self-locking functions, and good durability, meeting the lifting requirements of aluminum alloy holding furnaces. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 for Figure 2 A magnified structural diagram of part A in the diagram;

[0020] Figure 4 for Figure 2 A magnified structural diagram of part B in the diagram;

[0021] Figure 5 A three-dimensional structural diagram of a heat preservation furnace installed on this utility model;

[0022] Figure 6 A side view of the structure of the heat preservation furnace installed on this utility model;

[0023] Among them, 1 is the turbine lifting assembly, 2 is the hydraulic cylinder lifting assembly, 3 is the heat preservation furnace mounting component, 4 is the hydraulic system, 5 is the turbine box, 6 is the turbine, 7 is the worm gear, 8 is the transmission rod, 9 is the transmission box, 10 is the drive rod, 11 is the drive motor, 12 is the base, 13 is the upper plate, 14 is the column, 15 is the limit position adjustment device, 16 is the support column, 17 is the adjustment rod, 18 is the adjustment nut, 19 is the clamping nut, 20 is the support seat, 21 is the position sensor, and 22 is the heat preservation furnace. Detailed Implementation

[0024] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0025] like Figures 1-6 As shown, the self-locking, rapid synchronous lifting device of this utility model includes a frame assembly, which includes a frame one and a frame two. The frame one and frame two have the same structure, both including a base 12 and an upper plate 13. The base 12 and the upper plate 13 are connected by a column 14. The heat preservation furnace mounting part 3 is located above the upper plate 13, and the heat preservation furnace 22 is installed on the heat preservation furnace mounting part 3. The frame one is provided with a position sensor 21, which is convenient to identify when the heat preservation furnace 22 is raised or lowered into position.

[0026] Furthermore, in this invention, both frame one and frame two are equipped with two turbine lifting assemblies 1 and two hydraulic cylinder lifting assemblies 2, with the two hydraulic cylinder lifting assemblies 2 located inside the two turbine lifting assemblies 1. The turbine lifting assemblies 1 and the hydraulic cylinder lifting assemblies 2 operate independently, and are jointly connected to the heat preservation furnace mounting component 3.

[0027] Furthermore, the turbine lifting assembly 1 in this invention includes a turbine housing 5, within which a turbine 6 and a worm gear 7 are housed. The turbine 6 meshes with the worm gear 7, and the end of the worm gear 7 is connected to the heat preservation furnace mounting component 3. A transmission rod 8 for driving the turbine 6 is connected to the outside of the turbine housing 5. A transmission box 9 is connected to the end of the transmission rod 8. The transmission boxes 9 on frame one and frame two are connected via a drive rod 10. A support base 20 is located below the drive rod 10, and the transmission box 9 on frame one is connected to a drive motor 11. The drive rod 10 is driven by the drive motor 11. That is, four turbine lifting assemblies 1 are connected in series via transmission rods 8 and drive rods 10, and are powered by the drive motor 11 for lifting. The turbine lifting assembly 1 in this invention can be a screw-type turbine lift well-known in the art, capable of synchronous lifting and self-locking.

[0028] Furthermore, due to the significant wear problem in worm gear drives, this invention adds a second power source: a hydraulic cylinder lifting assembly 2. This assembly 2 can be a plunger-type lifting cylinder, well-known in the art. The upper end of the plunger-type lifting cylinder is connected to the insulation furnace mounting component 3, and the lower end is connected to the hydraulic system 4. With the assistance of four plunger-type lifting cylinders, the pressure of the matching plunger-type lifting cylinders is adjusted to reach a critical balance point between the plunger-type lifting cylinders and the lifted load. Additional power is output from the worm gear lifting assembly 1, thereby reducing the pressure on the worm gear mechanism during lifting and delaying wear on the worm gear. The hydraulic cylinder lifting assembly 2 in this invention adopts a plunger-type structure. During operation, only the rodless chamber of the cylinder works. During lifting, the cylinder needs to offset the weight of the lifted load. Therefore, the cylinder is used to balance the additional mass during the lifting process, thus acting as a counterweight. Maintaining the rated pressure in the rodless chamber is sufficient to offset the weight of the lifting element, achieving the effect of sharing the additional pressure on the worm gear box and extending the service life of the worm gear.

[0029] Furthermore, a limit position adjustment device 15 is installed between the base 12 and the upper plate 13, and the limit position adjustment device 15 is located between the two hydraulic cylinder lifting assemblies 1. The limit position adjustment device 15 includes a support column 16 installed on the base 12, an adjustment rod 17 is provided inside the support column 16, an adjustment nut 18 is provided outside the adjustment rod 17, a clamping nut 17 is provided on the upper part of the adjustment nut 18, the lower end of the adjustment rod 17 is inserted into the support column 16, and the upper end of the adjustment rod 17 is connected to the upper plate 13, further enhancing the support for the heat preservation furnace 22 and improving the rigidity of the lifting device of this utility model.

[0030] This invention uses four worm gear lifting assemblies connected in series for synchronous lifting, and four plunger-type hydraulic cylinders in the middle to counteract all the lifting force during lifting. By combining the worm gear lifting assembly and the hydraulic cylinder lifting assembly, the worm gear device achieves synchronous lifting and self-locking, while the plunger hydraulic cylinders achieve rapid lifting, thereby improving the working efficiency of the lifting device. At the same time, it solves the problem of rapid wear and tear from high-frequency use of the lifting device and extends the service life of the entire device.

[0031] The above embodiments are only used to explain the inventive concept of this utility model, and are not intended to limit the protection of this utility model. Any non-substantial modifications made to this utility model using this concept should fall within the protection scope of this utility model.

Claims

1. A self-locking, rapid synchronous lifting device, characterized in that: The system includes a frame assembly, on which a turbine lifting assembly and a hydraulic cylinder lifting assembly are mounted. The turbine lifting assembly and the hydraulic cylinder lifting assembly operate independently of each other, and are connected together to a heat preservation furnace mounting component.

2. The self-locking rapid synchronous lifting device as described in claim 1, characterized in that: The frame assembly includes frame one and frame two. Each of frame one and frame two is provided with two turbine lifting assemblies and two hydraulic cylinder lifting assemblies, with the two hydraulic cylinder lifting assemblies located inside the two turbine lifting assemblies.

3. The self-locking rapid synchronous lifting device as described in claim 1, characterized in that: The hydraulic cylinder lifting assembly includes a plunger-type lifting cylinder, the upper end of which is connected to the heat preservation furnace mounting component, and the lower end of which is connected to the hydraulic system.

4. The self-locking rapid synchronous lifting device as described in claim 2, characterized in that: The turbine lifting assembly includes a turbine housing, which contains a turbine and a worm gear. The turbine meshes with the worm gear, and the end of the worm gear is connected to a heat preservation furnace mounting component. A transmission rod for driving the turbine is connected to the outside of the turbine housing. The end of the transmission rod is connected to a transmission box. The transmission boxes on frame one and frame two are connected by a drive rod, and the transmission box on frame one is connected to a drive motor. The drive rod is driven by the drive motor.

5. The self-locking rapid synchronous lifting device as described in claim 2, characterized in that: The first and second frames have the same structure, both including a base and an upper plate. The base and the upper plate are connected by a column, and the heat preservation furnace mounting component is located above the upper plate.

6. The self-locking rapid synchronous lifting device as described in claim 5, characterized in that: An extreme position adjustment device is installed between the base and the upper plate, and the extreme position adjustment device is located between the two hydraulic cylinder lifting components.

7. The self-locking rapid synchronous lifting device as described in claim 6, characterized in that: The limit position adjustment device includes a support column installed on the base, an adjustment rod inside the support column, an adjustment nut outside the adjustment rod, a clamping nut on the upper part of the adjustment nut, the lower end of the adjustment rod being inserted into the support column, and the upper end of the adjustment rod being connected to the upper plate.

8. The self-locking rapid synchronous lifting device as described in claim 4, characterized in that: A support base is provided below the drive rod.

9. The self-locking rapid synchronous lifting device as described in claim 2, characterized in that: A positioning sensor is installed on the frame.

Images