Hydraulic crucible loading system controlled by oil pressure

Abstract

The utility model discloses an oil pressure controlled hydraulic crucible loading system, and belongs to the technical field of crucible loading. The device comprises a hydraulic oil station, a hydraulic pipeline, a hydraulic lifting device and a crucible loading bin, the hydraulic oil station comprises a hydraulic oil pump connected with the hydraulic lifting device through the hydraulic pipeline, the hydraulic lifting device lifts the crucible loading bin, and the crucible loading bin is provided with a feeding device for conveying materials to the crucible loading bin; the hydraulic pipeline is provided with an electromagnetic valve, the hydraulic lifting device is further provided with a first displacement sensor for detecting the moving distance of the lifting device and a first pressure sensor for detecting the oil pressure of the hydraulic pipeline, and the first displacement sensor and the first pressure sensor are electrically connected with the electromagnetic valve. According to the lifting charging device, the problems existing in electric lifting can be fundamentally solved, the lifting charging process is accurately controlled, and stable lifting charging is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of crucible loading technology, and more specifically, relates to a hydraulic crucible loading system controlled by oil pressure. Background Technology

[0002] With the rise of the new energy industry, the demand for battery anode materials is increasing daily, and artificial graphite accounts for a large proportion of anode materials. In the production process of artificial graphite anode materials, the filling amount and efficiency of the graphitization crucible affect the cost and production schedule of graphitization. Currently, the market mostly uses electric lifting and extrusion filling methods, which are prone to motor overload and severe wear of the transmission mechanism, thus causing interruptions in the filling process and affecting the filling efficiency and amount.

[0003] For example, Chinese patent application number CN202322646824.3, published on July 16, 2024, discloses an automatic loading device for graphitization crucibles of battery materials. The device includes a support base, a protective shell, a drive electric cylinder, a lifting slide plate, an adjustment structure, and a filling structure. The protective shell is mounted on the support base, the drive electric cylinder is located on top of the protective shell, the lifting slide plate slides along the opposite side wall inside the protective shell, the free end of the drive electric cylinder penetrates the protective shell and is connected to the lifting slide plate, the filling structure is located on the lifting slide plate, and the adjustment structure is located on the support base. This solution uses an electric lifting and pressing loading method, which is prone to causing motor overload and severe wear of the transmission mechanism, resulting in interruptions in the loading process.

[0004] Chinese patent application number CN202320776707.6, published on April 10, 2023, discloses an automatic crucible loading device for graphitization of negative electrode materials. The base has a horizontal loading station for placing the crucible. Lifting drive bars perpendicular to the horizontal loading station are arranged on opposite sides of the support frame. The lifting drive unit and the lifting drive bars are driven in a one-to-one correspondence. The surface of the pressure head facing away from the feed pipe is a compaction surface with a small discharge hole, perpendicular to the horizontal loading station. The pressure head can move vertically up and down between the inner bottom surface and the opening of the crucible. While this design does not specify whether electric or hydraulic lifting is used, its improvement in lifting control mainly lies in controlling the lifting direction. It does not take good control measures for the lifting and loading processes, failing to guarantee stable and error-free lifting and loading. Summary of the Invention

[0005] 1. The problem to be solved

[0006] To address the problems of motor overload, severe wear of transmission mechanisms, and difficulty in precisely controlling the lifting and loading process of existing electric lifting graphitization crucibles, this invention provides a hydraulic crucible loading system with oil pressure control. This system can fundamentally eliminate the problems associated with electric lifting and precisely control the lifting and loading process, ensuring stable lifting and loading.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A hydraulic crucible loading system controlled by hydraulic pressure includes a hydraulic oil station, hydraulic pipelines, a hydraulic lifting device, and a crucible hopper. The hydraulic oil station includes a hydraulic oil pump connected to the hydraulic lifting device via hydraulic pipelines. The hydraulic lifting device lifts and lowers the crucible hopper. The crucible hopper is equipped with a feeding device for conveying materials to the crucible hopper.

[0010] The hydraulic pipeline is equipped with a solenoid valve, and the hydraulic lifting device is also equipped with a first displacement sensor for detecting the moving distance of the lifting device and a first pressure sensor for detecting the oil pressure of the hydraulic pipeline. The first displacement sensor and the first pressure sensor are electrically connected to the solenoid valve.

[0011] As a further improvement to the technical solution, a second displacement sensor is also included to detect the moving distance of the lifting device, and the second displacement sensor is electrically connected to the switch of the feeding device.

[0012] As a further improvement to the technical solution, a second pressure sensor for detecting the oil pressure in the hydraulic pipeline is also included, and the second pressure sensor is electrically connected to the switch of the feeding device.

[0013] As a further improvement to the technical solution, a lifting platform is also included, wherein the crucible hopper is fixedly installed on the lifting platform, and the hydraulic lifting device lifts and lowers the lifting platform.

[0014] As a further improvement to the technical solution, the lifting platform is provided with a through hole that matches the shape of the crucible hopper, and the crucible hopper passes through the through hole and is fixedly connected to the lifting platform.

[0015] As a further improvement to the technical solution, the four corners of the lifting platform are provided with guide holes, and guide columns extending along the height direction are provided in the guide holes.

[0016] As a further improvement to the technical solution, the feeding device is installed on a lifting platform.

[0017] As a further improvement to the technical solution, the hydraulic lifting device includes a pair of lifting cylinders, which are symmetrically installed on both sides of the crucible hopper.

[0018] As a further improvement to the technical solution, the feeding device adopts a screw feeder.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] (1) The present invention provides a hydraulic crucible loading system controlled by hydraulic pressure, which replaces the mechanical transmission structure of traditional electric lifting by using hydraulic lifting method. This fundamentally eliminates the problems of motor overload and mechanical transmission wear, and ensures the stable operation of the lifting process. In particular, by setting a first displacement sensor to detect the moving distance of the lifting device, the position of the crucible hopper can be determined. By setting a first pressure sensor to detect the oil pressure of the hydraulic pipeline, the material pressure in the crucible hopper can be determined. The combination of the two enables the hydraulic oil station to adjust the opening of the solenoid valve to accurately control the lifting height and lifting speed of the lifting device, and ensures the stable operation of the lifting process.

[0022] (2) The present invention provides a hydraulic crucible loading system controlled by oil pressure. By setting a second displacement sensor and a second pressure sensor that are electrically connected to the switch of the feeding device, the feeding device can be controlled to stop feeding in time when the crucible hopper rises to a set height and is full of material, so as to avoid material overflow.

[0023] (3) The present invention provides a hydraulic crucible loading system with oil pressure control. By setting a lifting platform with guide holes and guide rods, the lifting platform will not deviate during lifting, reducing the shaking and tilting of the lifting platform during lifting, and preventing material leakage. By setting a through hole that matches the shape of the crucible hopper and allowing the crucible hopper to pass through the through hole and be fixedly connected to the lifting platform, the lower half of the taller crucible hopper can pass through the lifting platform for installation, effectively saving installation space. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a hydraulic crucible loading system controlled by oil pressure according to the present invention;

[0025] In the diagram: 1. Oil pressure station; 11. Hydraulic oil pump; 12. Solenoid valve; 2. Hydraulic pipeline; 3. Hydraulic lifting device; 31. First displacement sensor; 32. First pressure sensor; 33. Second displacement sensor; 34. Second pressure sensor; 4. Crucible hopper; 41. Feeding device. Detailed Implementation

[0026] Exemplary embodiments of the present invention are described in detail below. While these exemplary embodiments have been described in sufficient detail to enable those skilled in the art to practice the present invention, it should be understood that other embodiments may be implemented and various changes may be made to the present invention without departing from its spirit and scope. The more detailed description of embodiments of the present invention below is not intended to limit the scope of the claimed invention, but is merely illustrative and does not limit the description of the features and characteristics of the invention, in order to provide the best mode for carrying out the invention and sufficient to enable those skilled in the art to practice it. Therefore, the scope of the present invention is defined only by the appended claims.

[0027] Example 1

[0028] A hydraulic crucible loading system controlled by oil pressure is used in the production process of graphite anode materials. Its specific structure and technical effects are described in detail below.

[0029] like Figure 1 The system includes a hydraulic oil station 1, hydraulic pipelines 2, a hydraulic lifting device 3, and a crucible hopper 4. The hydraulic oil station 1 includes a hydraulic oil pump 11 connected to the hydraulic lifting device 3 via the hydraulic pipeline 2. The hydraulic lifting device 3 lifts and lowers the crucible hopper 4. The crucible hopper 4 is equipped with a feeding device 41 for conveying materials to the crucible hopper 4. In this embodiment, the feeding device 41 is a screw feeder.

[0030] The hydraulic pipeline 2 is equipped with a solenoid valve 12, and the hydraulic lifting device 3 is also equipped with a first displacement sensor 31 for detecting the moving distance of the lifting device and a first pressure sensor 32 for detecting the oil pressure of the hydraulic pipeline 2. The first displacement sensor 31 and the first pressure sensor 32 are electrically connected to the solenoid valve 12.

[0031] In addition, the system includes a second displacement sensor 33 for detecting the moving distance of the lifting device, which is electrically connected to the switch of the feeding device 41. It also includes a second pressure sensor 34 for detecting the oil pressure in the hydraulic line 2, which is electrically connected to the switch of the feeding device 41.

[0032] It should be noted that, to ensure smooth and stable lifting and for ease of installation, the system uses the lifting platform as the main body for lifting. The crucible hopper 4 is fixedly installed on the lifting platform, and the hydraulic lifting device 3 lifts the platform. In this embodiment, the hydraulic lifting device 3 includes a pair of lifting cylinders, symmetrically installed on both sides of the crucible hopper 4.

[0033] The lifting platform has through holes that match the shape of the crucible hopper 4, through which the crucible hopper 4 passes and is fixedly connected to the lifting platform. Guide holes are also provided at the four corners of the lifting platform, and guide posts extending along the height direction are installed within these guide holes. A feeding device 41 is installed on the lifting platform.

[0034] When loading begins, the solenoid valve 12 opens, and hydraulic oil flows from the hydraulic lifting device 3 back to the hydraulic oil station 1. The hydraulic lifting device 3 drives the loading bin 4 to descend. By adjusting the opening of the solenoid valve 12, the speed of the return oil is adjusted, thereby adjusting the descent speed of the hydraulic lifting device 3.

[0035] When the first displacement sensor 31 of the hydraulic lifting device 3 reaches the crucible loading position, the solenoid valve 12 is closed, and the descent stops. At this time, the screw feeder 41 is started to feed material into the empty crucible. When the first pressure sensor 32 reaches the set pressure value, the hydraulic oil pump 11 is started, and the solenoid valve 12 is opened to the set opening degree. Hydraulic oil is injected into the hydraulic lifting device 3 from the hydraulic oil station 1 through the hydraulic pipeline 2, thereby causing the hydraulic lifting device 3 to rise.

[0036] When the first displacement sensor 31 of the hydraulic lifting device 3 detects that the rising height has reached the set value, the solenoid valve 12 is closed, and the hydraulic lifting device 3 remains in the current position. At this time, the screw feeder 41 continues to feed material. When the first pressure sensor 32 reaches the set pressure, the solenoid valve 12 is opened again to the set opening degree, and the hydraulic lifting device 3 continues to rise.

[0037] When the displacement sensor 31 on the hydraulic lifting device 3 detects that the rising distance has reached the set value, the solenoid valve 12 is closed, and the feeding device 41 continues to feed until the first pressure sensor 32 reaches the set pressure, at which point it rises again. This process is repeated until the second displacement sensor 33 detects that the crucible is full.

[0038] When the second displacement sensor 33 detects that the crucible is full and the second pressure sensor 34 reaches the set pressure, the feeding device 41 is stopped, and the feeding stops. Then, the solenoid valve 12 is opened to the set opening degree, and the hydraulic lifting device 3 rises. When the first displacement sensor 31 detects that the standby position has been reached, the solenoid valve 12 is closed, and the hydraulic oil pump 11 is stopped.

[0039] This embodiment employs a hydraulic lifting system to replace the mechanical transmission structure of traditional electric lifting systems, fundamentally eliminating problems such as motor overload and mechanical transmission wear, and ensuring stable lifting operations. Specifically, by using a first displacement sensor 31 to detect the movement distance of the lifting device, the position of the crucible hopper can be determined; and by using a first pressure sensor 32 to detect the hydraulic line pressure, the material pressure inside the crucible hopper can be determined. The combination of these two sensors allows the hydraulic station to adjust the opening of the solenoid valve, thereby precisely controlling the lifting height and speed of the lifting device and ensuring stable lifting operations. Furthermore, by using a second displacement sensor 33 and a second pressure sensor 34 electrically connected to the feeder 41, the feeder can be stopped promptly when the crucible hopper 4 rises to the set height and is full, preventing material overflow.

[0040] By incorporating guide holes and guide rods into the lifting platform, deviation during lifting is prevented, reducing swaying and tilting during the lifting process and avoiding material leakage. Furthermore, by providing through holes that match the shape of the crucible hopper 4 and allowing the hopper 4 to pass through these holes and be fixedly connected to the lifting platform, the lower half of the taller crucible hopper 4 can be installed through the lifting platform, effectively saving installation space.

[0041] In summary, the hydraulic crucible loading system controlled by hydraulic pressure in this embodiment can fundamentally eliminate the problems associated with electric lifting and can precisely control the lifting and loading process to ensure stable lifting and loading.

Claims

1. A hydraulic crucible loading system controlled by oil pressure, characterized in that: It includes a hydraulic oil station (1), a hydraulic pipeline (2), a hydraulic lifting device (3), and a crucible hopper (4). The hydraulic oil station (1) includes a hydraulic oil pump (11) connected to the hydraulic lifting device (3) via the hydraulic pipeline (2). The hydraulic lifting device (3) lifts and lowers the crucible hopper (4). The crucible hopper (4) is equipped with a feeding device (41) for conveying materials to the crucible hopper (4). The hydraulic pipeline (2) is equipped with a solenoid valve (12), and the hydraulic lifting device (3) is also equipped with a first displacement sensor (31) for detecting the moving distance of the lifting device and a first pressure sensor (32) for detecting the oil pressure of the hydraulic pipeline (2). The first displacement sensor (31) and the first pressure sensor (32) are electrically connected to the solenoid valve (12).

2. The hydraulic crucible loading system with oil pressure control according to claim 1, characterized in that: It also includes a second displacement sensor (33) for detecting the moving distance of the lifting device, the second displacement sensor (33) being electrically connected to the switch of the feeding device (41).

3. The hydraulic crucible loading system with oil pressure control according to claim 2, characterized in that: It also includes a second pressure sensor (34) for detecting the oil pressure of the hydraulic line (2), which is electrically connected to the switch of the feeding device (41).

4. The hydraulic crucible loading system with oil pressure control according to claim 1, characterized in that: It also includes a lifting platform, the crucible hopper (4) is fixedly installed on the lifting platform, and the hydraulic lifting device (3) lifts and lowers the lifting platform.

5. The hydraulic crucible loading system with oil pressure control according to claim 4, characterized in that: The lifting platform is provided with a through hole that matches the shape of the crucible hopper (4), and the crucible hopper (4) passes through the through hole and is fixedly connected to the lifting platform.

6. The hydraulic crucible loading system with oil pressure control according to claim 5, characterized in that: The lifting platform is provided with guide holes at its four corners, and guide columns extending along the height direction are provided in the guide holes.

7. The hydraulic crucible loading system with oil pressure control according to claim 4, characterized in that: The feeding device (41) is installed on the lifting platform.

8. A hydraulic crucible loading system with oil pressure control according to any one of claims 1-7, characterized in that: The hydraulic lifting device (3) includes a pair of lifting cylinders, which are symmetrically installed on both sides of the crucible hopper (4).

9. A hydraulic crucible loading system with oil pressure control according to any one of claims 1-7, characterized in that: The feeding device (41) is a screw feeder.

Images