Automatic lifting device for sealing cover of degassing box

Abstract

An automatic lifting device for a degassing box sealing cover comprises a lifting platform and a locking mechanism, wherein the lifting platform is movably sleeved on a slag removal pipe of the degassing box, a sealing cover which completely covers the slag removal pipe is provided above the slag removal pipe, a hydraulic cylinder is provided below the lifting platform, and no less than two limiting grooves on different sides are provided around the lifting platform, and a group of locking mechanisms are provided in each limiting groove. The automatic lifting device drives the sealing cover to move up and down by means of the hydraulic cylinder below the lifting platform, thereby reducing the workload of the operator and improving the stability of the sealing cover during the movement. In addition, the automatic lifting device also enhances the air tightness of the degassing box by adding a locking mechanism to fix the sealing cover in the limiting groove of the lifting platform, effectively avoiding the phenomenon of misalignment and tilting of the lifting platform, and further eliminating the potential safety hazard of the sealing cover during the movement.

Description

Technical Field

[0001] The invention belongs to the technical field of aluminum alloy casting, and in particular relates to an automatic lifting device for a sealing cover of a degassing box. Background Art

[0002] In the casting process of aluminum alloy, a degassing box is needed to degas the molten aluminum liquid. During the whole degassing process, the degassing box will produce a certain amount of waste slag, and the operator needs to discharge this kind of waste slag from the slag removal port of the degassing box. When the slag removal work is not being carried out, the operator needs to use a 20-30 kg sealing cover to cover the slag removal port to ensure the airtightness of the degassing box. Because the existing sealing cover is too heavy, it is very inconvenient for the operator to move or place the sealing cover, which wastes a lot of human resources and also poses certain safety hazards. Summary of the invention

[0003] The purpose of the present invention is to solve the deficiencies of the prior art and to provide an automatic lifting device for a degassing box sealing cover.

[0004] The cam is an airtight container and the like, wherein the cam is secured to the bottom of the container and has a locking mechanism configured to engage the cam and engage with the bottom of the container.

[0005] Furthermore, there are four hydraulic cylinders under the lifting platform, and the hydraulic cylinders are evenly distributed at the four corners of the bottom surface of the lifting platform.

[0006] Furthermore, four limiting grooves are arranged around the lifting platform, and the limiting grooves are evenly distributed around the lifting platform in a circular shape.

[0007] Furthermore, an airtight gasket is provided between the slag removal pipe and the sealing cover.

[0008] Furthermore, a stirring rod is provided in the middle of the sealing cover and vertically penetrates the sealing cover, a stirring rudder is provided at the top of the stirring rod, and the bottom of the stirring rod is located in the degassing box.

[0009] Furthermore, the degassing box is also provided with a support frame for fixing the stirring rod.

[0010] Beneficial effects: The present invention discloses an automatic lifting device for the sealing cover of a degassing box. The automatic lifting device drives the sealing cover to move up and down by a hydraulic cylinder under the lifting platform, thereby reducing the workload of the operator and improving the stability of the sealing cover during the movement. In addition, the automatic lifting device also enhances the airtightness of the degassing box by adding a locking mechanism for fixing the sealing cover in the limit groove of the lifting platform, effectively avoiding the misalignment and tilting of the lifting platform, and further eliminating the safety hazard of the sealing cover during the movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the degassing box;

[0012] Figure 2 It is a structural schematic diagram of the automatic lifting device;

[0013] In the figure: 1, lifting platform 11, hydraulic cylinder 12, limit groove 2, locking mechanism 21, limit column 211, concave groove 212, square pin hole 22, locking rod 23, latch 3, degassing box 31, slag removal pipe 32, sealing cover 33, airtight gasket 34, stirring rod 35, stirring rudder 36, support frame DETAILED DESCRIPTION

[0014] In order to deepen the understanding of the present invention, the present invention is further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0015] like Figure 1 and Figure 2As shown, an automatic lifting device for a degassing box sealing cover comprises a lifting platform 1 and a locking mechanism 2, wherein the lifting platform 1 is movably sleeved on a slag removal pipe 31 of a degassing box 3, and a sealing cover 32 completely covering the slag removal pipe 31 is provided above the slag removal pipe 31, and a hydraulic cylinder 11 is provided below the lifting platform 1, and at least two limiting grooves 12 on different sides are provided around the lifting platform 1, and a group of locking mechanisms 2 are provided in each limiting groove 12, and the locking mechanism 2 comprises a limiting column 21 and a locking rod 2 clamped in the limiting groove 12. 2. The bottom end of the limiting column 21 is fixed on the degassing box 3, the top of the limiting column 21 is provided with a concave groove 211, and the side of the concave groove 211 is provided with a square pin hole 212, one end of the locking rod 22 presses the sealing cover 32, and the other end of the locking rod 22 is clamped in the concave groove 211, and the end of the locking rod 22 clamped in the concave groove 211 is provided with a square through hole (not shown in the figure) matched with the square pin hole 212, and the limiting column 21 and the locking rod 22 are connected by a pin 23 that passes through the square pin hole 212 and the square through hole at the same time.

[0016] In this embodiment, there are four hydraulic cylinders 11 under the lifting platform 1 , and the hydraulic cylinders 11 are evenly distributed at the four corners of the bottom surface of the lifting platform 1 .

[0017] In this embodiment, four limiting grooves 12 are formed around the lifting platform 1 , and the limiting grooves 12 are evenly distributed around the lifting platform 1 in a circular shape.

[0018] In this embodiment, an airtight gasket 33 is provided between the slag removal pipe 31 and the sealing cover 32 .

[0019] In this embodiment, a stirring rod 34 is provided in the middle of the sealing cover 32 and vertically penetrates the sealing cover 32. A stirring rudder 35 is provided at the top of the stirring rod 34. The bottom of the stirring rod 34 is located in the degassing box 3. The degassing box 3 is also provided with a support frame 36 for fixing the stirring rod 34.

[0020] The automatic lifting device drives the sealing cover to move up and down through the hydraulic cylinder under the lifting platform, which reduces the workload of the operator and improves the stability of the sealing cover during the movement. In addition, the automatic lifting device also enhances the air tightness of the degassing box by adding a locking mechanism for fixing the sealing cover in the limit groove of the lifting platform, effectively avoiding the misalignment and tilting of the lifting platform, and further eliminating the safety hazard of the sealing cover during the movement.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic lifting device for a degassing box sealing cover, characterized in that: The invention comprises a lifting platform and a locking mechanism, wherein the lifting platform is movably sleeved on the slag removal pipe of the degassing box, a sealing cover which completely covers the slag removal pipe is arranged above the slag removal pipe, a hydraulic cylinder is arranged below the lifting platform, and at least two limiting grooves on different sides are arranged around the lifting platform, and a group of locking mechanisms are arranged in each limiting groove, and the locking mechanism comprises a limiting column and a locking rod which are clamped in the limiting groove, the bottom end of the limiting column is fixed on the degassing box, the top end of the limiting column is provided with a concave groove, and the side surface of the concave groove is provided with a square pin hole, one end of the locking rod presses the sealing cover, and the other end of the locking rod is clamped in the concave groove, and one end of the locking rod which is clamped in the concave groove is provided with a square through hole which matches the square pin hole, and the limiting column and the locking rod are connected by a pin which passes through the square pin hole and the square through hole at the same time; There are four hydraulic cylinders under the lifting platform, and the hydraulic cylinders are evenly distributed at the four corners of the bottom surface of the lifting platform; Four limiting grooves are arranged around the lifting platform, and the limiting grooves are evenly distributed around the lifting platform in a circular shape.

2. The automatic lifting device for the degassing box sealing cover according to claim 1, characterized in that: An airtight gasket is arranged between the slag removal pipeline and the sealing cover.

3. The automatic lifting device for the degassing box sealing cover according to claim 1, characterized in that: A stirring rod which vertically penetrates the sealing cover is arranged in the middle of the sealing cover, a stirring rudder is arranged at the top of the stirring rod, and the bottom of the stirring rod is located in the degassing box.

4. The automatic lifting device for the degassing box sealing cover according to claim 1, characterized in that: The degassing box is also provided with a support frame for fixing the stirring rod.

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