Magnetic fluid rotary lift vacuum mechanism

Abstract

The utility model provides a kind of magnetic fluid rotary lifting vacuum mechanism, belong to vacuum lifting rotary technical field;The existing magnetic fluid rotary lifting sealing structure complex, and poor sealingness etc. Problem is solved;Including magnetic fluid main part, lifting shaft is installed in magnetic fluid main part, rubber sealing pad is installed between lifting shaft and magnetic fluid main part;One end of lifting shaft is connected with the workpiece to be processed in high-temperature vacuum furnace, and the other end of lifting shaft is fixedly connected with bearing;Large wheel belt is installed outside magnetic fluid main body, jacking slider block cylinder is installed below magnetic fluid main body, lifting motor is installed below jacking slider block cylinder, one end of jacking slider block cylinder is connected with bearing, the other end of jacking slider block cylinder is connected with lifting motor;Transition disc is installed at the top of jacking slider block cylinder, and transition disc is connected with magnetic fluid main body by screw rod;The utility model is applied to high-temperature vacuum furnace.

Description

Technical Field

[0001] This invention provides a magnetohydrodynamic rotary lifting vacuum mechanism, belonging to the field of vacuum lifting and rotation technology. Background Technology

[0002] The core function of a high-temperature vacuum furnace is to heat workpieces in a vacuum environment. Its typical structure must meet the process requirements of "vacuuming-heating-workpiece movement." The furnace body adopts a double-layer water-cooled sealed cavity, with the inner wall lined with high-temperature resistant insulation material (such as high-purity alumina fiber felt). A liftable and rotatable workpiece support platform is installed at the bottom of the cavity. The platform is connected to an external transmission mechanism via a sealed shaft that runs through the bottom of the furnace body. This sealed shaft is equipped with multi-stage vacuum sealing components (such as metal bellows seals, magnetohydrodynamic seals, or packing seals) to ensure that the vacuum level inside the furnace is maintained during workpiece lifting and rotation.

[0003] Before heating up a high-temperature vacuum furnace, the furnace needs to be evacuated before proceeding with subsequent processes. The workpiece inside the furnace needs to create a vacuum environment inside the furnace during rotation and lifting. However, the existing magnetic fluid rotation lifting sealing structure generally uses a bellows, which is prone to corrosion, causing gas leakage that affects safety. In addition, the poor sealing performance leads to a reduction in vacuum level, resulting in a low yield rate for subsequent processes. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model proposes a magnetohydrodynamic rotary lifting vacuum mechanism, which can perform rotation and lifting actions and form a vacuum environment.

[0005] The technical solution adopted by this utility model is as follows: a magnetic fluid rotary lifting vacuum mechanism, including a magnetic fluid body, a lifting shaft installed inside the magnetic fluid body, and a magnetic fluid sealing component installed between the lifting shaft and the magnetic fluid body;

[0006] One end of the lifting shaft is connected to the workpiece to be processed in the high-temperature vacuum furnace, and the other end of the lifting shaft is fixedly connected to the bearing.

[0007] A large tire is installed on the outside of the magnetofluid body, and a lifting slider cylinder is installed below the magnetofluid body. A lifting motor is installed below the lifting slider cylinder. One end of the lifting slider cylinder is connected to a bearing, and the other end of the lifting slider cylinder is connected to the lifting motor.

[0008] A transition plate is installed at the top of the lifting slider cylinder, and the transition plate is connected to the magnetohydrodynamic body through a screw.

[0009] Furthermore, the lifting slider cylinder is equipped with a lower connecting block and an upper connecting block that can slide up and down. The output shaft of the lifting motor is fixedly connected to the lower connecting block, the lower connecting block is connected to the upper connecting block, and the upper connecting block is engaged with a bearing.

[0010] Furthermore, a locking cover is installed below the bearing to secure it to the lifting shaft.

[0011] Furthermore, a cover is installed at the bottom of the lifting slider cylinder.

[0012] Furthermore, the magnetofluid body is equipped with a hollow structure for water inlet and outlet.

[0013] Furthermore, a belt drive mechanism is connected to the large pulley, and the belt drive mechanism is driven by a motor.

[0014] The advantages of this utility model over the prior art are as follows:

[0015] 1. This utility model can realize the lifting and rotation of the workpiece, and achieve vacuum sealing during the movement. The large pulley can be connected to an external motor and driven by belt transmission to drive the magnetohydrodynamic body to rotate. The lifting motor drives the lower connecting block to slide, the lower connecting block drives the upper connecting block to slide, and the upper connecting block cooperates with the bearing to realize the lifting action of the lifting shaft.

[0016] 2. The magnetic fluid seal between the lifting shaft and the magnetic fluid body can achieve vacuum sealing during the linear motion of the lifting shaft and the rotation of the magnetic fluid body 2.

[0017] 3. The magnetofluid body has a hollow structure inside, which allows water to enter and exit, enabling water cooling and preventing the magnetofluid body from overheating during rotation.

[0018] 4. This utility model has a simple structure and is easy to use. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 for Figure 1 An enlarged structural diagram at point A;

[0022] In the diagram: 1 is the lifting shaft, 2 is the magnetic fluid body, 3 is the screw, 4 is the large pulley, 5 is the transition plate, 6 is the lifting slider cylinder, 7 is the cover, 8 is the lifting motor, 9 is the lower connecting block, 10 is the upper connecting block, 11 is the lock cover, 12 is the bearing, and 13 is the magnetic fluid seal. Detailed Implementation

[0023] like Figures 1 to 2As shown, this utility model provides a magnetic fluid rotary lifting vacuum mechanism, including a lifting shaft 1, a magnetic fluid body 2, a screw 3, a large pulley 4, a transition plate 5, a lifting slider cylinder 6, a cover 7, a lifting motor 8, a lower connecting block 9, an upper connecting block 10, a locking cover 11, a bearing 12, and a magnetic fluid seal 13. The lifting shaft 1 is installed inside the magnetic fluid body 2, and a magnetic fluid seal 13 is installed between the lifting shaft 1 and the magnetic fluid body 2. The magnetic fluid seal 13 between the lifting shaft 1 and the magnetic fluid body 2 enables vacuum sealing during the linear motion of the lifting shaft 1 and the rotation of the magnetic fluid body 2.

[0024] One end of the lifting shaft 1 extends into the vacuum chamber of the high-temperature vacuum furnace and connects to the workpiece to be processed. The other end of the lifting shaft 1 extends out of the magnetohydrodynamic body 2 and connects with the bearing 12. A locking cover 11 is installed below the bearing 12. The locking cover 11 is used to fix the position of the bearing 12 on the lifting shaft 1 and prevent relative movement between the bearing 12 and the lifting shaft 1.

[0025] A large pulley 4 is installed on the outside of the magnetofluid body 2. The large pulley 4 can be connected to an external motor and driven by belt transmission. It then cooperates with the magnetofluid body 2 to realize the rotation of the magnetofluid body 2.

[0026] A lifting slider cylinder 6 is installed below the magnetofluid body 2. A lifting motor 8 is installed below the lifting slider cylinder 6. A lower connecting block 9 and an upper connecting block 10 that can slide up and down are installed inside the lifting slider cylinder 6. The output shaft of the lifting motor 8 is fixedly connected to the lower connecting block 9. The lower connecting block 9 is connected to the upper connecting block 10. The upper connecting block 10 cooperates with the bearing 12 to realize the lifting action of the lifting shaft 1.

[0027] The magnetofluid body 2 has a hollow structure inside, which allows water to enter and exit, thus achieving water cooling.

[0028] A transition plate 5 is installed at the top of the lifting slider cylinder 6, and a cover 7 is installed at the bottom of the lifting slider cylinder 6. The transition plate 5 is connected to the magnetofluid body 2 through a screw 3.

[0029] The principle of this invention is as follows: The large pulley 4 rotates via belt drive, causing the magnetic fluid body 2 to rotate. The magnetic fluid body 2 then drives the transition plate 5 to rotate via the screw 3, thus realizing the rotational movement of the magnetic fluid. The lifting motor 8 drives the lower connecting block 9 inside the lifting slider cylinder 6 to move up and down, which in turn drives the upper connecting block 10 to move up and down. The upper connecting block 10 drives the lifting shaft 1 to move up and down via the bearing 12, which is used to lift the workpiece. The magnetic fluid seal 13 between the lifting shaft 1 and the magnetic fluid body 2 achieves a vacuum seal during the rotation and lifting processes.

[0030] This utility model has a simple structure and is easy to install. It also provides corresponding improvements and solutions to problems such as the formation of a vacuum environment during the lifting and rotation of workpieces.

[0031] Regarding the specific structure of this utility model, it should be noted that the connection relationships between the various component modules adopted in this utility model are definite and achievable. Except as specifically described in the embodiments, their specific connection relationships can bring about corresponding technical effects and solve the technical problems proposed by this utility model without relying on the execution of corresponding software programs. The models of the components, modules, and specific components appearing in this utility model, the connection methods between them, and the conventional usage methods and expected technical effects brought about by the above-mentioned technical features, unless specifically described, are all publicly disclosed content in patents, journal articles, technical manuals, technical dictionaries, and textbooks that can be obtained by those skilled in the art before the application date, or belong to conventional technology, common knowledge, and other existing technologies in this field. There is no need to elaborate, which makes the technical solution provided in this case clear, complete, and achievable, and can reproduce or obtain corresponding physical products based on this technical means.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A magnetohydrodynamic rotary lifting vacuum mechanism, characterized in that: It includes a magnetic fluid body (2), a lifting shaft (1) is installed inside the magnetic fluid body (2), and a magnetic fluid seal (13) is installed between the lifting shaft (1) and the magnetic fluid body (2). One end of the lifting shaft (1) is connected to the workpiece to be processed in the high temperature vacuum furnace, and the other end of the lifting shaft (1) is fixedly connected to the bearing (12); A large pulley (4) is installed on the outside of the magnetic fluid body (2), a lifting slider cylinder (6) is installed below the magnetic fluid body (2), and a lifting motor (8) is installed below the lifting slider cylinder (6). One end of the lifting slider cylinder (6) is connected to a bearing (12), and the other end of the lifting slider cylinder (6) is connected to the lifting motor (8). A transition plate (5) is installed at the top of the lifting slider cylinder (6), and the transition plate (5) is connected to the magnetofluid body (2) through the screw (3).

2. The magnetohydrodynamic rotary lifting vacuum mechanism according to claim 1, characterized in that: The lifting slider cylinder (6) is equipped with a lower connecting block (9) and an upper connecting block (10) that can slide up and down. The output shaft of the lifting motor (8) is fixedly connected to the lower connecting block (9). The lower connecting block (9) is connected to the upper connecting block (10). The upper connecting block (10) is engaged with the bearing (12).

3. The magnetohydrodynamic rotary lifting vacuum mechanism according to claim 1, characterized in that: A locking cover (11) is installed below the bearing (12) to fix the bearing (12) to the lifting shaft (1).

4. The magnetohydrodynamic rotary lifting vacuum mechanism according to claim 1, characterized in that: A cover (7) is installed at the bottom of the lifting slider cylinder (6).

5. A magnetohydrodynamic rotary lifting vacuum mechanism according to any one of claims 1-4, characterized in that: The magnetofluid body (2) has a hollow structure inside for water inlet and outlet.

6. The magnetohydrodynamic rotary lifting vacuum mechanism according to claim 5, characterized in that: The large pulley (4) is connected to an external belt drive mechanism, which is driven by a motor.

Images