Simple conductive trolley

Abstract

The simple conductive trolley comprises a trolley frame and a clamping mechanism, the clamping mechanism comprises a workbench and clamping assemblies arranged at the two ends of the workbench in a mirror symmetry mode, and each clamping assembly comprises a conductive bus and a fixing plate connected to one side of the conductive bus; the clamping assembly further comprises a hydraulic jack, the telescopic end of the hydraulic jack is connected with the fixing plate, and the workbench is connected with the frame through a ball screw elevator. According to the simple conductive trolley, the functions of stable clamping, conductive processing, accurate lifting and the like of a furnace end bus and a rectification side bus are achieved by combining the trolley frame, the clamping mechanism, the hydraulic jack, the ball screw lifter and other simple components. When a conductive trolley with a more complex and huge structure in the prior art is maintained, the conductive trolley with a simple structure in the scheme can play a temporary replacement role.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the electric arc furnace related technical field, and particularly relates to a simple electric conductive trolley. BACKGROUND

[0002] The electric arc furnace is an electric furnace for smelting ores and metals by using the high temperature generated by the electrode arc. When the gas discharge forms the electric arc, the energy is very concentrated, and the temperature of the arc area is above 3000 DEG C. For smelting metals, the electric arc furnace has greater process flexibility than other steelmaking furnaces, can effectively remove impurities such as sulfur and phosphorus, the furnace temperature is easy to control, the equipment occupies a small area, and is suitable for smelting high-quality alloy steel. The graphite electrode is mainly made of petroleum coke and needle coke as raw materials, coal tar pitch as a binder, and is made by calcination, batching, kneading, molding, baking, graphitization and machining. It is a conductor that releases electric energy in the form of an electric arc in an electric arc furnace to heat and melt the furnace charge.

[0003] The temperature of the electric arc furnace reaches above 3000 DEG C, and it takes about 60 hours to complete the heating and melting of the furnace charge. When power is on, the furnace end busbar needs to be connected to the rectifier side busbar. After power is supplied to both ends, the electric hoist is heated. After each use of each electric hoist, the electric arc furnace needs to be cooled before the material in it can be removed. Because the temperature is high, the cooling time is very long.

[0004] In order to improve production efficiency, multiple electric arc furnaces are often used in rotation to avoid production interruption. In order to facilitate production, multiple electric arc furnaces are arranged in order. Therefore, an electrode holder is used to transfer between multiple electric arc furnaces and conduct electricity between the furnace end busbar and the rectifier side busbar. The applicant previously designed a conductive trolley with a structure as shown in the announcement No. CN220062509U, as shown in Figure 1 The conductive trolley includes a clamping mechanism, a conductive track, and a trolley body provided on the conductive track. The trolley body includes a frame (19), a roller is rotatably installed on the conductive track below the frame (19), a drive mechanism (4) is installed on the frame (19) to drive the roller to rotate, the clamping mechanism includes a workbench (13) and a clamping assembly symmetrically arranged at both ends of the workbench (13), and the workbench (13) is connected with the frame (19) through a lifting mechanism. The clamping assembly includes an extension device and a conductive busbar (11) connected to the end of the extension device. An electrical cabinet (3) is installed on the frame (19) to provide power for the extension device, the lifting mechanism and the drive mechanism (4). The connection and conduction or clamping of the furnace end busbar (12) and the rectifier side busbar (10), as well as the operation of disconnecting or relaxing, are very convenient. The conductive trolley has a compact and stable structure, and ensures that the multiple electric arc furnaces are used in rotation smoothly and smoothly.

[0005] But in the later use of the above electric trolley process, there are the following problems, during the maintenance of the electric trolley, it cannot be used, resulting in production stoppage, work progress is seriously delayed, so a simple structure of the electric trolley needs to be designed to temporarily replace, in the case of reducing equipment cost and reducing production loss, the simple structure of the electric trolley can play a temporary replacement role. Utility model content

[0006] The utility model intends to provide a simple electric trolley, which plays a temporary replacement role during the maintenance of the electric trolley in the prior art, avoiding the problem of work progress delay due to production stoppage.

[0007] The simple electric trolley in the scheme comprises a frame and a clamping mechanism, the clamping mechanism comprises a workbench and mirror image symmetrical clamping assemblies arranged at both ends of the workbench, the clamping assembly comprises a conductive busbar and a fixed plate connected to one side of the conductive busbar, the clamping assembly further comprises a hydraulic jack, the telescopic end of the hydraulic jack is connected to the fixed plate, and the workbench is connected to the frame through a ball screw lifter.

[0008] The working principle of the scheme is that the hydraulic jack gives the fixed plate connected with the conductive busbar a horizontal advancing and retreating force through the pressure transmission principle of liquid, and the hydraulic jack can stably exert force during clamping of the furnace end busbar and the rectifier side busbar, so that the process of connecting the conductive busbar is smooth and stable.

[0009] The working principle of the ball screw lifter is that external power drives the worm to rotate, the worm drives the worm gear to rotate at a reduced speed, the inner cavity of the worm gear is processed into internal threads, and the jacking screw rod is driven to move up and down.

[0010] The beneficial technical effects of the scheme are that the ball screw lifter not only realizes the up-and-down movement of the workbench on the frame, but also has the advantages of high transmission efficiency, stable movement, accurate positioning and the like due to the adoption of the ball screw structure inside, realizes accurate control and positioning, and ensures the accuracy and stability of the simple electric trolley in the working process.

[0011] The simple electric trolley realizes stable clamping, conductive treatment and accurate lifting of the furnace end busbar and the rectifier side busbar by combining the frame, the clamping mechanism (including the conductive busbar and the fixed plate), the hydraulic jack and the ball screw lifter and the like simple components.

[0012] Furthermore, there are four ball screw elevators, distributed at the four corners of the workbench, forming a balanced support structure to better ensure the stability and balance of the workbench during the lifting process. By distributing the weight among the elevators at the four corners, the load-bearing capacity of the entire system can be significantly improved, the load pressure of a single elevator can be reduced, and the service life of the equipment can be extended.

[0013] Furthermore, the four ball screw elevators are driven by a dual-axis motor. This dual-axis motor simultaneously drives two of the ball screw elevators, then distributes power to the remaining two via an appropriate transmission mechanism, such as a gearbox or coupling. This synchronizes the four ball screw elevators, reducing errors and deviations caused by asynchrony between the multiple ball screw elevators and improving the smoothness and consistency of the worktable's lifting. Compared to multiple independent motor drives, dual-axis motor drive simplifies the overall structure and reduces energy consumption.

[0014] Furthermore, a flange is connected to the top of the ball screw elevator, which is connected to the workbench. The high-strength and rigid flange can firmly connect the ball screw elevator and the workbench, providing stable support, effectively reducing vibration generated by the elevator during operation, and enhancing the stability of the workbench during operation.

[0015] Furthermore, an I-shaped guide wheel is provided at the bottom of the fixed plate, and a guide rail is provided on the workbench, on which the guide wheel slides. The I-shaped guide wheel and the guide rail form a stable sliding connection structure, providing precise guidance, allowing the fixed plate to move smoothly and accurately to the desired position. The I-shaped guide wheel increases the contact area with the guide rail, thereby improving sliding stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a conductive trolley with announcement number CN220062509U;

[0017] Figure 2 This is the front view of the simple conductive trolley of the utility model;

[0018] Figure 3 It is a right side view of the simple conductive trolley of the utility model. DETAILED DESCRIPTION

[0019] The following is further described in detail through specific implementation methods:

[0020] Attached to the specification Figure 1The marking is detailed in the patent document of a conductive trolley with the announcement number CN220062509U. The following embodiments only introduce the structure of the simple conductive trolley of this application, and the structure of the simple conductive trolley of this application is as shown in the attached figure. Figure 2 and attached Figure 3 As shown, attached Figure 2 and attached Figure 3 The markings include: conductive busbar 1, fixing plate 2, hydraulic jack 3, support plate 4, guide wheel 5, guide rail 6, flange 7, workbench 8, lifting screw 9, box 10, transmission rod 11, mounting plate 12, protective tube 13, frame 14, and motor 15.

[0021] The embodiment is basically as shown in the attached Figure 2 and Figure 3 As shown: A simple conductive trolley includes a frame 14, a clamping mechanism, and a ball screw elevator. The clamping mechanism includes a workbench 8 and clamping assemblies arranged at both ends of the workbench 8 in a mirror-symmetrical manner. The clamping assembly includes a conductive busbar 1 and a fixed plate 2 connected to one side of the conductive busbar 1. A support plate 4 is provided on the workbench 8. A hydraulic jack 3 is connected between the support plate 4 and the fixed plate 2. The telescopic end of the hydraulic jack 3 is connected to the fixed plate 2. An "I"-shaped guide wheel 5 is provided at the bottom of the fixed plate 2. A guide rail 6 is provided on the workbench 8, and the guide wheel 5 is slidably mounted on the guide rail 6.

[0022] The ball screw elevator includes a protective tube 13, which houses a lifting screw 9. A mounting plate 12 is attached to the top of the protective tube 13, which is supported by a housing 10. Housing 10 houses a turbine, with its internal threaded cavity threadedly connected to the lifting screw 9. The turbine is driven by a worm, the input end of which extends outside housing 10 and connects to a drive rod 11. The four corners of the workbench 8 are connected to the frame 14 via four of the aforementioned ball screw elevators, which are driven by a dual-axis motor 15. A flange 7 is attached to the top of the lifting screw 9, which is connected to the workbench 8.

[0023] The specific implementation process is as follows: Hydraulic jack 3 applies horizontal forward and backward force to fixed plate 2, connected to conductive busbar 1, placing the furnace-end busbar and the rectifier-side busbar between conductive busbar 1. Conductive busbar 1 clamps the furnace-end and rectifier-side busbars, connecting them to the electrical connection. A ball screw elevator drives a worm through motor 15, which in turn drives a worm gear with reduced speed. The worm gear has an internal threaded cavity, which drives the lifting screw 9 up and down.

Claims

1. A simple conductive trolley, comprising a trolley frame and a clamping mechanism, the clamping mechanism comprising a workbench and mirror-symmetrically arranged clamping assemblies at both ends of the workbench, each clamping assembly comprising a conductive busbar and a fixed plate connected to one side of the conductive busbar; characterized in that: The clamping assembly also includes a hydraulic jack, the telescopic end of the hydraulic jack is connected to the fixed plate, and the workbench and the frame are connected via a ball screw elevator.

2. The simple conductive trolley according to claim 1, characterized in that: There are four ball screw lifts, which are distributed at the four corners of the workbench.

3. The simple conductive trolley according to claim 2, characterized in that: The four ball screw elevators are driven by a double-axis motor.

4. The simple conductive trolley according to claim 3, characterized in that: The top of the ball screw elevator is connected with a flange, which is connected to the workbench.

5. The simple conductive trolley as claimed in claim 4, characterized in that: An "I"-shaped guide wheel is provided at the bottom of the fixed plate, and a guide rail is provided on the workbench, on which the guide wheel is slidably arranged.

Images