Hydraulic device of medium-frequency electric furnace

Abstract

The utility model belongs to the hydraulic technical field of medium-frequency electric furnaces, and particularly discloses a hydraulic device of a medium-frequency electric furnace, which comprises a support frame, a rotating shaft is rotatably mounted on the inner side of the support frame close to the front side, a support seat is fixedly sleeved on the outer surface of the rotating shaft, and a furnace body is fixedly mounted in the middle of the support seat. A hydraulic mechanism is arranged on the rear side of the bottom of the supporting seat and comprises a hydraulic cylinder and a guide barrel, the hydraulic cylinder further comprises a hydraulic barrel and a piston rod, the piston rod is arranged in the hydraulic barrel in a sliding mode, and a guide rod is inserted in the guide barrel in a sliding mode. Dust collection boxes and conical rubber scraping rings are correspondingly arranged at the upper ends of the hydraulic cylinder and the guide cylinder as well as the outer surfaces of the piston rod and the guide rod, so that metal dust adhered to the outer surfaces of the piston rod and the guide rod can be effectively, quickly and downwards scraped off and sucked away, and the influence of the metal dust on subsequent normal use of the hydraulic cylinder is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic pressure of medium frequency electric furnaces, and specifically discloses a hydraulic device of a medium frequency electric furnace. Background Art

[0002] The medium frequency electric furnace has the advantages of small size, light weight, high efficiency, excellent heat processing quality and favorable environment. The medium frequency electric furnace is the main equipment in the casting, forging and heat treatment workshops. The stability, reliability and safety of its operation are the guarantee for the normal and stable operation of the casting, forging and heat treatment production lines in the assembly line.

[0003] Since a large amount of metal dust and smoke is generated when the medium frequency electric furnace is smelting metal, this causes the metal dust to float around and adhere to the piston rod in the hydraulic cylinder when the medium frequency electric furnace is pouring materials. The subsequent piston rod can easily bring the metal dust into the hydraulic cylinder, causing the hydraulic oil in the hydraulic cylinder to be contaminated and oxidized, thereby affecting the normal use of the subsequent hydraulic device. Utility Model Content

[0004] In view of this, in order to solve the problems existing in the background technology, the utility model proposes a medium frequency electric furnace hydraulic device.

[0005] To achieve the above purpose, the utility model provides a medium frequency electric furnace hydraulic device, including a support frame, a rotating shaft is rotatably installed on the inner side of the support frame near the front side, a support seat is fixedly mounted on the outer surface of the rotating shaft, a furnace body is fixedly installed in the middle of the support seat, a hydraulic mechanism is arranged at the bottom rear side of the support seat, the hydraulic mechanism includes a hydraulic cylinder and a guide sleeve, the hydraulic cylinder includes a hydraulic cylinder and a piston rod, the piston rod is slidably arranged inside the hydraulic cylinder, a guide rod is slidably inserted inside the guide sleeve, a dust suction mechanism is commonly arranged at the upper ends of the hydraulic cylinder and the guide sleeve and at the outer sides of the piston rod and the guide rod, and the dust suction mechanism includes a conical rubber scraper ring.

[0006] In the above technical solution, further, the hydraulic mechanism also includes four connecting seats, and connecting shafts are rotatably installed on the inner sides of the four connecting seats. The outer surfaces of two of the connecting shafts are respectively fixedly connected to the bottom ends of the hydraulic cylinder and the guide cylinder, and the outer surfaces of the other two connecting shafts are respectively fixedly connected to the upper ends of the piston rod and the guide rod.

[0007] In the above technical solution, further, the bottoms of two of the connecting seats are fixedly connected to the upper surface of the support frame, and the tops of the other two connecting seats are fixedly connected to the lower surface of the support seat.

[0008] In the above technical solution, further, the dust suction mechanism also includes two dust boxes, which are respectively fixedly mounted on the upper ends of the outer surfaces of the hydraulic cylinder and the guide cylinder, and a conical rubber scraper ring is fixedly installed on the inner side of the upper end of the dust box, and the inner sides of the two conical rubber scraper rings are respectively slidably matched with the outer surfaces of the piston rod and the guide rod.

[0009] In the above technical solution, further, the outer sides of the two dust boxes are respectively fixedly connected with fixed tubes, the outer ends of the two fixed tubes are respectively fixedly connected with telescopic tubes, the upper ends of the two telescopic tubes pass through the interior of the support seat and are fixedly connected with the two ends of the conduit, the middle of the upper side of the conduit is fixedly connected with a dust suction pipe, and the upper end of the dust suction pipe is fixedly connected with the dust suction end of the vacuum cleaner.

[0010] In the above technical solution, further, the connecting end of the conduit and the two telescopic tubes is fixedly installed on the upper surface of the support seat through a fixing piece, and the connecting end of the telescopic tube and the fixed tube is fixedly installed on one side of the dust collection box through a fixing frame.

[0011] Compared with the prior art, the utility model has the following beneficial effects: when the furnace body in the device is overturning the metal liquid, the metal dust floating in the air adheres to the outer surfaces of the piston rod and the guide rod. When the furnace body is subsequently reset, the piston rod and the guide rod start the vacuum cleaner in the process of moving downward to retract the hydraulic cylinder and the guide cylinder. The vacuum cleaner delivers dust suction wind to the two telescopic tubes respectively through the dust suction pipe and the duct, and the dust suction wind is then delivered to the dust box through the fixed pipe. The conical rubber scraper ring arranged inside the dust box can effectively and quickly scrape off the metal dust adhered to the outer surfaces of the piston rod and the guide rod moving downward. The scraped metal dust then slides into the dust box through the inclined surface arranged on the outer side of the conical rubber scraper ring, and is then sucked into the dust box by the dust box and sent to the vacuum cleaner, which effectively prevents the piston rod from bringing metal dust into the hydraulic cylinder, causing the hydraulic oil in the hydraulic cylinder to be contaminated and oxidized. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a medium frequency electric furnace hydraulic device proposed by the utility model;

[0013] Figure 2 This is a structural schematic diagram of the main mechanism proposed by the utility model.

[0014] In the figure: 1. support frame; 2. rotating shaft; 3. support seat; 4. furnace body; 5. hydraulic cylinder; 6. piston rod; 7. conical rubber scraper ring; 8. connecting seat; 9. guide cylinder; 10. guide rod; 11. connecting shaft; 12. dust box; 13. fixed tube; 14. telescopic tube; 15. guide tube; 16. vacuum cleaner; 17. fixing piece; 18. fixing frame. DETAILED DESCRIPTION

[0015] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] like Figure 1-Figure 2 A medium-frequency electric furnace hydraulic device shown in the figure includes a support frame 1, a rotating shaft 2 is rotatably installed on the inner side of the support frame 1 near the front side, a support seat 3 is fixedly mounted on the outer surface of the rotating shaft 2, a furnace body 4 is fixedly installed in the middle of the support seat 3, and a hydraulic mechanism is arranged at the bottom rear side of the support seat 3, the hydraulic mechanism includes a hydraulic cylinder and a guide cylinder 9, the hydraulic cylinder includes a hydraulic cylinder 5 and a piston rod 6, the piston rod 6 is slidably arranged inside the hydraulic cylinder 5, and a guide rod 10 is slidably inserted inside the guide cylinder 9, the hydraulic mechanism also includes four connecting seats 8, connecting shafts 11 are rotatably installed on the inner sides of the four connecting seats 8, the outer surfaces of two connecting shafts 11 are respectively fixedly connected to the bottom ends of the hydraulic cylinder 5 and the guide cylinder 9, and the outer surfaces of the other two connecting shafts 11 are respectively fixedly connected to the upper ends of the piston rod 6 and the guide rod 10, the bottoms of the two connecting seats 8 are fixedly connected to the upper surface of the support frame 1, and the tops of the other two connecting seats 8 are fixedly connected to the lower surface of the support seat 3. When the molten metal in the furnace body 4 needs to be poured out, the hydraulic cylinder is started so that the piston rod 6 extends from the hydraulic cylinder 5, thereby pushing the furnace body 4 to rotate along the rotating shaft 2 and pouring the molten metal into the collection box.

[0017] A dust suction mechanism is provided at the upper ends of the hydraulic cylinder 5 and the guide cylinder 9 and at the outer sides of the piston rod 6 and the guide rod 10. The dust suction mechanism includes a conical rubber scraper ring 7. The dust suction mechanism also includes two dust boxes 12, which are fixedly mounted on the upper ends of the outer surfaces of the hydraulic cylinder 5 and the guide cylinder 9, respectively. Conical rubber scraper rings 7 are fixedly installed on the inner sides of the upper ends of the dust boxes 12. The inner sides of the two conical rubber scraper rings 7 are slidably matched with the outer surfaces of the piston rod 6 and the guide rod 10, respectively. The conical rubber scraper rings 7 provided inside the dust box 12 can effectively and quickly scrape off the metal dust adhered to the outer surfaces of the piston rod 6 and the guide rod 10 moving downward, and the scraped metal dust then slides into the dust box 12 through the inclined surface provided on the outer sides of the conical rubber scraper rings 7.

[0018] The outer sides of the two dust boxes 12 are fixedly connected with fixed pipes 13, and the outer ends of the two fixed pipes 13 are fixedly connected with telescopic pipes 14, and the upper ends of the two telescopic pipes 14 pass through the interior of the support seat 3 and are fixedly connected with the two ends of the guide tube 15, and the middle of the upper side of the guide tube 15 is fixedly connected with a dust suction pipe, and the upper end of the dust suction pipe is fixedly connected with the dust suction end of the dust collector 16. The connecting end of the guide tube 15 and the two telescopic pipes 14 is fixedly installed on the upper surface of the support seat 3 through a fixing member 17, and the connecting end of the telescopic pipe 14 and the fixed pipe 13 is fixedly installed on one side of the dust box 12 through a fixing frame 18. When the furnace body 4 is reset, the piston rod 6 and the guide rod 10 start the dust collector 16 in the process of moving downward to retract the hydraulic cylinder 5 and the guide cylinder 9, and the dust collector 16 delivers dust suction wind to the two telescopic pipes 14 through the dust suction pipe and the guide tube 15, and the dust suction wind is then delivered to the dust box 12 through the fixed pipe 13.

[0019] During operation, when the metal liquid in the furnace body 4 needs to be poured out, the hydraulic cylinder is started, so that the piston rod 6 extends from the hydraulic cylinder 5, thereby pushing the furnace body 4 to rotate along the rotating shaft 2 and pouring the metal liquid into the collection box;

[0020] When the furnace body 4 is overturning the molten metal, the metal dust floating in the air adheres to the outer surfaces of the piston rod 6 and the guide rod 10. When the furnace body 4 is subsequently reset, the piston rod 6 and the guide rod 10 start the vacuum cleaner 16 in the process of moving downward to retract the hydraulic cylinder 5 and the guide cylinder 9. The vacuum cleaner 16 delivers dust suction wind to the two telescopic tubes 14 through the dust suction pipe and the guide tube 15 respectively, and the dust suction wind is then delivered to the dust box 12 through the fixed pipe 13. The conical rubber scraper ring 7 arranged inside the dust box 12 can effectively and quickly scrape off the metal dust adhered to the outer surfaces of the piston rod 6 and the guide rod 10 moving downward, and the scraped metal dust slides into the dust box 12 through the inclined surface arranged on the outer side of the conical rubber scraper ring 7, and is then sucked into the dust box 12 by the dust box 12 and sent to the vacuum cleaner 16.

[0021] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A medium frequency electric furnace hydraulic device, comprising a support frame (1), characterized in that: A rotating shaft (2) is rotatably mounted on the inner side of the support frame (1) near the front side, a supporting seat (3) is fixedly mounted on the outer surface of the rotating shaft (2), a furnace body (4) is fixedly mounted in the middle of the supporting seat (3), a hydraulic mechanism is arranged at the rear side of the bottom of the supporting seat (3), the hydraulic mechanism comprises a hydraulic cylinder and a guide cylinder (9), the hydraulic cylinder comprises a hydraulic cylinder (5) and a piston rod (6), the piston rod (6) is slidably arranged inside the hydraulic cylinder (5), a guide rod (10) is slidably inserted inside the guide cylinder (9), a dust suction mechanism is arranged at the upper ends of the hydraulic cylinder (5) and the guide cylinder (9) and located outside the piston rod (6) and the guide rod (10), the dust suction mechanism comprises a conical rubber scraper ring (7).

2. A medium frequency electric furnace hydraulic device according to claim 1, characterized in that: The hydraulic mechanism further comprises four connecting seats (8), the inner sides of the four connecting seats (8) are rotatably mounted with connecting shafts (11), the outer surfaces of two of the connecting shafts (11) are respectively fixedly connected to the bottom ends of the hydraulic cylinder (5) and the guide cylinder (9), and the outer surfaces of the other two of the connecting shafts (11) are respectively fixedly connected to the upper ends of the piston rod (6) and the guide rod (10).

3. A medium frequency electric furnace hydraulic device according to claim 2, characterized in that: The bottoms of the two connecting seats (8) are fixedly connected to the upper surface of the support frame (1), and the tops of the other two connecting seats (8) are fixedly connected to the lower surface of the support seat (3).

4. A medium frequency electric furnace hydraulic device according to claim 1, characterized in that: The dust suction mechanism further comprises two dust suction boxes (12), the two dust suction boxes (12) being fixedly mounted on the upper ends of the outer surfaces of the hydraulic cylinder (5) and the guide cylinder (9), respectively; a conical rubber scraper ring (7) is fixedly mounted on the inner side of the upper end of the dust suction box (12), and the inner sides of the two conical rubber scraper rings (7) are slidably matched with the outer surfaces of the piston rod (6) and the guide rod (10), respectively.

5. A medium frequency electric furnace hydraulic device according to claim 4, characterized in that: The outer sides of the two dust collection boxes (12) are respectively fixedly connected with fixed tubes (13), the outer ends of the two fixed tubes (13) are respectively fixedly connected with telescopic tubes (14), the upper ends of the two telescopic tubes (14) pass through the interior of the support seat (3) and are fixedly connected with the two ends of the guide tube (15), the middle part of the upper side of the guide tube (15) is fixedly connected with a dust collection tube, and the upper end of the dust collection tube is fixedly connected with the dust collection end of the dust collector (16).

6. A medium frequency electric furnace hydraulic device according to claim 5, characterized in that: The connecting end of the guide tube (15) and the two telescopic tubes (14) is fixedly mounted on the upper surface of the support seat (3) via a fixing piece (17), and the connecting end of the telescopic tube (14) and the fixed tube (13) is fixedly mounted on one side of the dust collection box (12) via a fixing frame (18).

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