Lifting device for silicon carbide workshop

Abstract

The utility model discloses a silicon carbide workshop lifting device, and relates to the field of silicon carbide production equipment. The silicon carbide workshop lifting device comprises a vehicle body, a hydraulic system and a lifting platform, wherein supporting rollers are arranged at the bottom of the vehicle body; the hydraulic system is arranged on the vehicle body, the lifting platform is connected with the hydraulic system, and the lifting platform is used for bearing a crucible and is driven by the hydraulic system to drive the crucible to move in the vertical direction. The lifting device for the silicon carbide workshop can replace manpower to complete transferring and lifting of the crucible, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the field of silicon carbide production equipment, in particular to a silicon carbide workshop lifting device. Background Art

[0002] During the loading and opening process of the silicon carbide crystal growth furnace, the loading position is high, the operating space is small, and the crucible is heavy, which makes the operation extremely difficult, time-consuming and labor-intensive for the operator. Utility Model Content

[0003] The utility model aims to provide a lifting device for a silicon carbide workshop, which can replace manpower to transfer and lift the crucible, saving time and labor.

[0004] The embodiment of the utility model provides a technical solution:

[0005] A lifting device for a silicon carbide workshop comprises a vehicle body, a hydraulic system and a lifting platform, wherein a supporting roller is arranged at the bottom of the vehicle body; the hydraulic system is arranged on the vehicle body, the lifting platform is connected to the hydraulic system, the lifting platform is used to carry a crucible, and the crucible is driven to move in a vertical direction under the drive of the hydraulic system;

[0006] A plurality of supporting protrusions are convexly arranged on the upper surface of the lifting platform, and a hand-gripping gap is formed between any two adjacent supporting protrusions; and an anti-skid pad is arranged on the surface of the supporting protrusion, and the anti-skid pad is used to support the crucible.

[0007] In an optional embodiment, the hydraulic system includes a hydraulic circuit and a hydraulic pump and a cylinder arranged on the hydraulic circuit, the fixed end of the cylinder is arranged on the vehicle body, and the telescopic end of the cylinder extends vertically upward and is connected to the lifting platform.

[0008] In an optional embodiment, the silicon carbide workshop lifting device also includes an electronic control system, which includes a battery and a control switch, the battery is electrically connected to the control switch and the hydraulic pump respectively, and the control switch is used to control the start or stop of the hydraulic pump.

[0009] In an optional embodiment, the silicon carbide workshop lifting device also includes a scissors protection frame, one end of the scissors protection frame is connected to the lifting platform, and the other end is connected to the vehicle body, the scissors protection frame has a protection channel extending in the vertical direction, and the telescopic end of the cylinder is accommodated in the protection channel.

[0010] In an optional embodiment, a locking member is provided on the scissors protection frame, and the locking member is used to selectively lock the scissors protection frame under the action of an external force. When the scissors protection frame is locked, the scissors protection frame supports the lifting platform.

[0011] In an optional embodiment, a control armrest is provided on the vehicle body.

[0012] Compared with the prior art, the silicon carbide workshop lifting device provided by the utility model, in actual application, the hydraulic system lowers the lifting platform to the lowest position, the operator moves the crucible to the lifting platform, and then the operator pushes the vehicle body to move the crucible to the target position. Afterwards, the lifting platform is driven by the hydraulic system to lift the crucible to the target height for furnace loading, replacing manpower to complete the transfer and lifting operations. Therefore, the silicon carbide workshop lifting device provided by the utility model can replace manpower to complete the transfer and lifting of the crucible, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative work.

[0014] Figure 1 A schematic structural diagram of a silicon carbide workshop lifting device provided in an embodiment of the utility model.

[0015] Icons: 100-silicon carbide workshop lifting device; 110-vehicle body; 111-support roller; 112-control handrail; 121-hydraulic pump; 122-cylinder; 130-lifting platform; 131-support protrusion; 132-handle notch; 141-battery; 142-control switch; 150-scissor guard frame. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0019] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships that are usually understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0020] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings.

[0023] Example

[0024] See also Figure 1 , Figure 1 Shown is a schematic structural diagram of a silicon carbide workshop lifting device 100 provided in this embodiment.

[0025] The silicon carbide workshop lifting device 100 provided in this embodiment is used to transfer and lift the crucible in the silicon carbide workshop, so as to save time and effort to complete the operations such as loading and opening the silicon carbide crystal growth furnace.

[0026] The silicon carbide workshop lifting device 100 includes a vehicle body 110, a hydraulic system and a lifting platform 130. A supporting roller 111 is arranged at the bottom of the vehicle body 110, and a control handrail 112 is arranged on the vehicle body 110. The operator can apply a force to the vehicle body 110 through the control handrail 112 to drive the vehicle body 110 to move and adjust the running trajectory of the vehicle body 110; the hydraulic system is arranged on the vehicle body 110, and the lifting platform 130 is connected to the hydraulic system. The lifting platform 130 is used to carry a crucible and drive the crucible to move in a vertical direction under the drive of the hydraulic system.

[0027] In actual application, when the furnace needs to be loaded, the lifting platform 130 is first driven down to the lowest position by the hydraulic system, and then the crucible filled with silicon carbide powder is moved to the lifting platform 130. After completion, the vehicle body 110 drives the lifting platform 130 and the crucible to move in the silicon carbide workshop to move the crucible to the target position. Afterwards, the lifting platform 130 is driven by the hydraulic system to drive the crucible to move in the vertical direction to the target height, so as to facilitate the subsequent loading of the crucible into the crystal growth furnace.

[0028] When the growth of silicon carbide crystals is completed and the furnace needs to be opened, the vehicle body 110 first moves to the target position near the crystal growth furnace, and then the hydraulic system drives the lifting platform 130 to rise to the target height to facilitate the support of the crucible leaving the crystal growth furnace. After the crucible in the crystal growth furnace is moved to the lifting platform 130, the hydraulic system drives the lifting platform 130 to descend to the target height, and the vehicle body 110 drives the crucible to move to the target position for subsequent operations such as taking out the silicon carbide crystals and cleaning the crucible.

[0029] In this embodiment, the hydraulic system includes a hydraulic circuit and a hydraulic pump 121 and a cylinder 122 arranged on the hydraulic circuit. The fixed end of the cylinder 122 is arranged on the vehicle body 110, and the telescopic end of the cylinder 122 extends vertically upward and is connected to the lifting platform 130.

[0030] It is understandable that the hydraulic pump 121 is used to pump the hydraulic oil in the hydraulic circuit into the oil cylinder 122 in a positive or negative direction to provide a positive or negative driving force to the telescopic end of the oil cylinder 122, thereby driving the lifting platform 130 to rise or fall. In other embodiments, according to actual application conditions, different numbers of oil cylinders 122 can be configured between the lifting platform 130 and the vehicle body 110 to ensure that the lifting platform 130 can rise or fall in a stable posture.

[0031] The silicon carbide workshop lifting device 100 provided in this embodiment also includes an electric control system, which includes a battery 141 and a control switch 142. The battery 141 is electrically connected to the control switch 142 and the hydraulic pump 121 respectively, and the control switch 142 is used to control the start or stop of the hydraulic pump 121.

[0032] It is understandable that the battery 141 supplies power to the hydraulic pump 121, and the control switch 142 controls the start and stop and the operating state of the hydraulic pump 121. Specifically, when the lifting platform 130 drives the crucible to move to the target height, the operator controls the hydraulic pump 121 to stop through the control switch 142; when the lifting platform 130 switches between ascending and descending movements, the operator controls the hydraulic pump 121 to switch the operating state through the control switch 142.

[0033] Considering that the lifting platform 130 is usually raised to a higher height in actual applications, there is a large space between the lifting platform 130 and the vehicle body 110 . This space is a dangerous area and people may be easily injured if they enter by mistake.

[0034] In order to prevent personal injury, the silicon carbide workshop lifting device 100 provided in this embodiment also includes a scissors protection frame 150, one end of the scissors protection frame 150 is connected to the lifting platform 130, and the other end is connected to the vehicle body 110. The scissors protection frame 150 has a protection channel extending in the vertical direction, and the telescopic end of the cylinder 122 is accommodated in the protection channel.

[0035] It can be understood that the scissor protection frame 150 fills the space between the lifting platform 130 and the vehicle body 110, and the personnel in the workshop will no longer be able to easily enter the space, that is, the scissor protection frame 150 plays a role in safety protection. When the lifting platform 130 is raised, the scissor protection frame 150 is gradually extended under the drive of the lifting platform 130; and when the lifting platform 130 is lowered, the scissor protection frame 150 is gradually shortened under the drive of the lifting platform 130.

[0036] In fact, in addition to the role of safety protection, the scissor protection frame 150 also plays the role of lifting limit. Specifically, when the scissor protection frame 150 is extended to the maximum length driven by the lifting platform 130, the telescopic end of the oil cylinder 122 will not be able to extend further; when the scissor protection frame 150 is shortened to the minimum length driven by the lifting platform 130, the telescopic end of the oil cylinder 122 will not be able to retract further.

[0037] In addition, considering that after the lifting platform 130 drives the crucible to rise to the target height, the crucible is too heavy and is supported only by the oil cylinder 122 for a long time, the structural stability may be damaged. In order to solve this problem, in this embodiment, a locking member is provided on the scissor guard frame 150, and the locking member is used to selectively lock the scissor guard frame 150 under the action of an external force. When the scissor guard frame 150 is locked, the scissor guard frame 150 supports the lifting platform 130.

[0038] In other words, after the lifting platform 130 drives the crucible to rise to the target height, the operator locks the scissor guard frame 150 through the locking member. At this time, the state of the scissor guard frame 150 is fixed and will not be extended or shortened by external forces. When the crucible stays on the lifting platform 130 for a long time, the scissor guard frame 150 can continue to support the lifting platform 130, improve the stability of the overall structure, and thus improve safety.

[0039] In order to facilitate the operator to carry the crucible, in this embodiment, a plurality of supporting protrusions 131 are convexly provided on the upper surface of the lifting platform 130, and a hand-grip notch 132 is formed between any two adjacent supporting protrusions 131. It can be understood that when placing the crucible on the lifting platform 130 or moving it away from the lifting platform 130, the operator can hold the bottom of the crucible through the hand-grip notch 132 at the bottom of the crucible, thereby facilitating the operator to apply force to the crucible and reducing the difficulty of carrying.

[0040] In addition, in order to prevent the crucible from slipping during transportation, in this embodiment, an anti-skid pad is provided on the surface of the support protrusion 131 on the lifting platform 130, and the anti-skid pad is used to support the crucible. Specifically, the anti-skid pad can be a rubber block, which has a certain buffering capacity in addition to anti-skid ability.

[0041] In summary, the silicon carbide workshop lifting device 100 provided by the present invention is applied in a silicon carbide workshop and can replace manpower to complete the transfer and lifting of the crucible, thus saving time and labor.

[0042] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A silicon carbide workshop lifting device, characterized in that: The invention comprises a vehicle body (110), a hydraulic system and a lifting platform (130), wherein a supporting roller (111) is arranged at the bottom of the vehicle body (110); the hydraulic system is arranged on the vehicle body (110), the lifting platform (130) is connected to the hydraulic system, and the lifting platform (130) is used to carry a crucible and drive the crucible to move in a vertical direction under the drive of the hydraulic system; A plurality of supporting protrusions (131) are convexly provided on the upper surface of the lifting platform (130), and a hand-gripping notch (132) is formed between any two adjacent supporting protrusions (131); and an anti-slip pad is provided on the surface of the supporting protrusion (131), and the anti-slip pad is used to support the crucible.

2. The silicon carbide workshop lifting device according to claim 1, characterized in that: The hydraulic system comprises a hydraulic circuit and a hydraulic pump (121) and an oil cylinder (122) arranged on the hydraulic circuit. The fixed end of the oil cylinder (122) is arranged on the vehicle body (110), and the telescopic end of the oil cylinder (122) extends vertically upward and is connected to the lifting platform (130).

3. The silicon carbide workshop lifting device according to claim 2, characterized in that: The silicon carbide workshop lifting device (100) also includes an electric control system, which includes a battery (141) and a control switch (142). The battery (141) is electrically connected to the control switch (142) and the hydraulic pump (121) respectively, and the control switch (142) is used to control the start or stop of the hydraulic pump (121).

4. The silicon carbide workshop lifting device according to claim 2, characterized in that: The silicon carbide workshop lifting device (100) further comprises a scissor protection frame (150), one end of the scissor protection frame (150) is connected to the lifting platform (130), and the other end is connected to the vehicle body (110), the scissor protection frame (150) has a protection channel extending in a vertical direction, and the telescopic end of the oil cylinder (122) is accommodated in the protection channel.

5. The silicon carbide workshop lifting device according to claim 4, characterized in that: The scissor protection frame (150) is provided with a locking member, and the locking member is used to selectively lock the scissor protection frame (150) under the action of an external force. When the scissor protection frame (150) is locked, the scissor protection frame (150) supports the lifting platform (130).

6. The silicon carbide workshop lifting device according to claim 1, characterized in that: A control armrest (112) is provided on the vehicle body (110).

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