Crucible tray lifting device

Abstract

The utility model discloses a crucible tray lifting device which comprises a fixed platform, a lifting rod and a movable platform, the lifting rod is fixedly connected with the fixed platform, the lifting rod penetrates through the movable platform, the lifting rod is sleeved with a spring, the spring is located between the fixed platform and the movable platform, and the movable platform is fixedly connected with the lifting rod. The movable platform is rotationally connected with a plurality of connecting rods, the fixed platform is rotationally connected with a plurality of embracing arms, the connecting rods correspond to the embracing arms in a one-to-one mode, one connecting rod is rotationally connected with one embracing arm, and embracing claws are arranged on the sides, back to the movable platform, of the embracing arms. In the process of disassembling and assembling the crucible tray, a worker is prevented from making direct contact with the crucible tray, meanwhile, the crucible tray is clamped through the holding claws, stability is higher, and the possibility of damaging components of a thermal field is reduced.

Description

Technical Field

[0001] The utility model generally relates to the field of single crystal silicon production, and in particular to a crucible tray lifting device. Background Art

[0002] When disassembling and assembling the hot field of a single crystal furnace, especially when disassembling and assembling a larger hot field, the corresponding crucible tray will also be larger and heavier. It is very inconvenient to disassemble and assemble the crucible tray, and it is easy to cause bumps. It is easy to cause burns when disassembling the furnace at high temperature. If the worker's hand directly contacts the crucible tray, it may cause burns. Utility Model Content

[0003] In view of the above-mentioned defects or shortcomings in the prior art, it is desired to provide a crucible tray lifting device that is easy to disassemble and assemble.

[0004] In the first aspect, the crucible tray lifting device of the utility model comprises a fixed platform, a lifting rod and a mobile platform, the lifting rod is fixedly connected to the fixed platform, the lifting rod passes through the mobile platform, the lifting rod is sleeved with a spring, the spring is located between the fixed platform and the mobile platform, the mobile platform is rotatably connected to a plurality of connecting rods, the fixed platform is rotatably connected to a plurality of holding arms, the connecting rods correspond to the holding arms one by one, one connecting rod is rotatably connected to one holding arm, and a holding claw is provided on the side of the holding arm facing away from the mobile platform.

[0005] According to the technical solution provided in the embodiment of the present application, when the crucible tray needs to be disassembled, the claws are placed on the outer edge of the crucible tray, and the lifting rod is lifted. The mobile platform will approach the fixed platform, the spring will be compressed, the arm will rotate relative to the fixed platform, and multiple claws will hold the outer edge of the crucible tray tightly, so that the crucible tray moves with the crucible tray lifting device. After the crucible tray is moved into place, the crucible tray lifting device is lowered so that the crucible tray contacts the support block, and the lifting rod is continued to move downward. Under the action of the spring force, the mobile platform will move away from the fixed platform, driving the arm to reset, so that the claws are separated from the outer edge of the crucible tray. In the process of disassembling and assembling the crucible tray, direct contact between the worker and the crucible tray is avoided. At the same time, the crucible tray is clamped by the claws, which is more stable and reduces the possibility of damaging the thermal field components. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0007] Figure 1 It is a structural schematic diagram of a crucible tray lifting device according to an embodiment of the utility model;

[0008] Figure 2It is a structural schematic diagram of a crucible tray lifting device according to an embodiment of the utility model. DETAILED DESCRIPTION

[0009] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0010] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0011] Please refer to Figure 1 and 2 The crucible tray lifting device of the utility model includes a fixed platform 100, a lifting rod 200 and a mobile platform 300. The lifting rod 200 is fixedly connected to the fixed platform 100, and the lifting rod 200 passes through the mobile platform 300. The lifting rod 200 is sleeved with a spring 210, and the spring 210 is located between the fixed platform 100 and the mobile platform 300. The mobile platform 300 is rotatably connected to multiple connecting rods 310 respectively, and the fixed platform 100 is rotatably connected to multiple holding arms 110 respectively. The connecting rods 310 correspond to the holding arms 110 one by one. One connecting rod 310 is rotatably connected to one holding arm 110, and a holding claw 120 is provided on the side of the holding arm 110 facing away from the mobile platform 300.

[0012] In the embodiment of the utility model, the lifting rod 200 is fixedly connected to the fixed platform 100, and one end of the lifting rod 200 may be, but not limited to, fixedly connected to the center of the fixed platform 100. The lifting rod 200 passes through the mobile platform 300, and the mobile platform 300 can slide relative to the lifting rod 200, and the lifting rod 200 may, but not limited to, pass through the center of the mobile platform 300. The lifting rod 200 is sleeved with a spring 210, and the spring 210 is located between the mobile platform 300 and the fixed platform 100. When the crucible tray lifting device is not subjected to external force, the spring 210 keeps a certain distance between the mobile platform 300 and the fixed platform 100, so that the claws 120 open.

[0013] The mobile platform 300 is rotatably connected to a plurality of connecting rods 310, and the fixed platform 100 is rotatably connected to a plurality of holding arms 110. The connecting rods 310 correspond to the holding arms 110 one by one, and one connecting rod 310 is rotatably connected to one holding arm 110. A holding claw 120 is provided on the side of the holding arm 110 facing away from the mobile platform 300. When the mobile platform 300 approaches the fixed platform 100, the connecting rod 310 and the holding arm 110 rotate respectively, so that the holding claw 120 contracts. When the mobile platform 300 moves away from the fixed platform 100, the connecting rod 310 and the holding arm 110 rotate respectively, so that the holding claw 120 opens. When the crucible tray lifting device is needed to drive the crucible tray to move, the lifting rod 200 is lifted, the mobile platform 300 will approach the fixed platform 100, the spring 210 is compressed, the arm 110 will rotate relative to the fixed platform 100, and the plurality of claws 120 will hold the outer edge of the crucible tray tightly, so that the crucible tray moves with the crucible tray lifting device. After the crucible tray is moved into place, the crucible tray lifting device is lowered so that the crucible tray contacts the support block, and the lifting rod 200 is continued to move downward. Under the elastic force of the spring 210, the mobile platform 300 will move away from the fixed platform 100, driving the arm 110 to reset, so that the claws 120 are separated from the outer edge of the crucible tray. During the process of disassembling and assembling the crucible tray, the worker is prevented from directly contacting the crucible tray. At the same time, the crucible tray is clamped by the claws 120, which is more stable and reduces the possibility of damaging the thermal field components.

[0014] Furthermore, a lifting ring 220 is provided on a side of the lifting rod 200 away from the fixed platform 100 , and the outer diameter of the lifting ring 220 is greater than the outer diameter of the lifting rod 200 .

[0015] In the embodiment of the present utility model, the lifting ring 220 can prevent the mobile platform 300 from being separated from the lifting rod 200. When the crucible tray is heavy, the lifting ring 220 can be hooked by the lifting mechanical arm to lift the lifting rod 200.

[0016] Furthermore, the mobile platform 300 is rotatably connected to three connecting rods 310 , and the fixed platform 100 is rotatably connected to three arms 110 .

[0017] In the embodiment of the utility model, three connecting rods 310 correspond to three holding arms 110. When the mobile platform 300 moves relative to the fixed platform 100, the three connecting rods 310 and the three holding arms 110 will move synchronously. One holding arm 110 is provided with a holding claw 120. The three holding arms 110 rotate respectively relative to the fixed platform 100, thereby driving the three holding claws 120 to open or retract synchronously. The three holding claws 120 are used to hold the crucible tray synchronously to ensure the stability of the holding crucible tray.

[0018] Furthermore, the three connecting rods 310 are arranged at equal angles along the circumference of the mobile platform 300. When the crucible tray lifting device lifts the crucible tray, the mobile platform 300 can be evenly stressed, thereby ensuring the reliability of the crucible tray lifting device.

[0019] Furthermore, the three arms 110 are arranged at equal angles along the circumference of the fixed platform 100. When the crucible tray lifting device lifts the crucible tray, the fixed platform 100 can be evenly stressed, thereby ensuring the reliability of the crucible tray lifting device.

[0020] Furthermore, one end of the claw 120 away from the arm 110 is bent toward the fixed platform 100 to form a bent portion 121 .

[0021] In the embodiment of the present invention, the claws 120 are bent to form a bent portion 121. When the claws 120 are contracted and grasp the crucible tray, the bent portion 121 can support the edge of the crucible tray, thereby ensuring the stability of driving the crucible tray to move.

[0022] Furthermore, a reinforcing plate 130 is provided between the holding arm 110 and the holding claw 120 .

[0023] In the embodiment of the present invention, the reinforcing plate 130 can ensure the connection strength between the claw 120 and the arm 110 .

[0024] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A crucible tray lifting device, characterized in that: It includes a fixed platform, a lifting rod and a mobile platform, the lifting rod is fixedly connected to the fixed platform, the lifting rod passes through the mobile platform, the lifting rod is sleeved with a spring, the spring is located between the fixed platform and the mobile platform, the mobile platform is rotatably connected to a plurality of connecting rods, the fixed platform is rotatably connected to a plurality of holding arms, the connecting rods correspond to the holding arms one by one, one connecting rod is rotatably connected to one holding arm, and a holding claw is provided on the side of the holding arm facing away from the mobile platform.

2. The crucible tray lifting device according to claim 1, characterized in that: A lifting ring is arranged on one side of the lifting rod away from the fixed platform, and the outer diameter of the lifting ring is greater than the outer diameter of the lifting rod.

3. The crucible tray lifting device according to claim 1, characterized in that: The mobile platform is rotatably connected to the three connecting rods respectively, and the fixed platform is rotatably connected to the three holding arms respectively.

4. The crucible tray lifting device according to claim 3, characterized in that: The three connecting rods are arranged at equal angles along the circumference of the moving platform.

5. The crucible tray lifting device according to claim 3, characterized in that: The three arms are arranged at equal angles along the circumference of the fixed platform.

6. The crucible tray lifting device according to claim 1, characterized in that: One end of the holding claw away from the holding arm is bent toward the fixed platform to form a bent portion.

7. The crucible tray lifting device according to claim 1, characterized in that: A reinforcement plate is also provided between the holding arm and the holding claw.

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