Feeding and pressing trolley for intermediate frequency furnace

Abstract

The utility model relates to a charging and pressing trolley for an intermediate frequency furnace. The charging and pressing trolley comprises a trolley body, the vehicle body comprises an upper frame and a lower frame; a first slewing mechanism is arranged on the lower frame, and the first slewing mechanism is connected with the upper frame and can drive the upper frame to rotate; wheels are arranged at the bottom of the lower frame; a hopper, a second slewing mechanism and a pressing mechanism are arranged on the upper frame; the second slewing mechanism is connected with the material pressing mechanism and can drive the material pressing mechanism to rotate; the material pressing mechanism comprises a rotary platform, a large arm, a small arm, a large arm hydraulic cylinder, a small arm hydraulic cylinder and a material pressing hammer head. The automatic feeding and pressing device can achieve feeding and pressing and has the advantages of being high in safety coefficient, high in operation efficiency and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for steel smelting, in particular to a feeding and pressing vehicle for an intermediate frequency furnace. Background Art

[0002] The working frequency of an intermediate frequency induction electric furnace (hereinafter referred to as an intermediate frequency furnace) is between 50 and 2000 Hz, and its heating principle is electromagnetic induction, which has the characteristics of fast heating speed, high production efficiency, and less oxidation and decarburization.

[0003] In steel smelting production enterprises, many use waste steel slag and waste steel cakes to remelt into steel ingots for use, including the operation of smelting with an intermediate frequency furnace. When smelting with an intermediate frequency furnace, a charging truck is used to feed waste steel to the furnace mouth of the intermediate frequency furnace. Since the size and shape of waste steel blocks are irregular, it is easy to cause a material jamming phenomenon (waste steel jams at the furnace mouth), so pressing is also required.

[0004] Currently, the method adopted is to manually use tools such as shovels and steel pipes to poke downwards to press the waste steel stuck at the furnace mouth into the intermediate frequency furnace. However, the disadvantages of this method are: high danger, high temperature and large smoke at the furnace mouth, very poor working environment and low working efficiency. Summary of the Invention

[0005] The utility model provides a feeding and pressing vehicle for an intermediate frequency furnace, which can realize feeding and pressing, and has the characteristics of high safety factor and high working efficiency.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] A feeding and pressing vehicle for an intermediate frequency furnace includes a vehicle body; the vehicle body includes an upper frame and a lower frame; a first slewing mechanism is arranged on the lower frame, and the first slewing mechanism is connected with the upper frame and can drive the upper frame to rotate; wheels are arranged at the bottom of the lower frame.

[0008] A hopper, a second slewing mechanism and a pressing mechanism are arranged on the upper frame; the bottom of the hopper is hinged to the upper frame, and hopper hydraulic cylinders are arranged on both sides of the upper frame. The cylinder body of the hopper hydraulic cylinder is hinged to the upper frame, and the piston rod end of the hopper hydraulic cylinder is hinged to the hopper.

[0009] The second slewing mechanism is connected with the pressing mechanism and can drive the pressing mechanism to rotate.

[0010] The blank holding mechanism includes a rotary platform, a large arm, a small arm, a large arm hydraulic cylinder, a small arm hydraulic cylinder, and a blank holding hammer head; one end of the large arm is hinged to the rotary platform, and the other end is hinged to the small arm. The bottom end of the small arm is connected to the blank holding hammer head; the cylinder block of the large arm hydraulic cylinder is hinged to the rotary platform, and the piston rod end of the large arm hydraulic cylinder is hinged to the lower part of the large arm; the cylinder block of the small arm hydraulic cylinder is hinged to the upper part of the large arm, and the piston rod end of the small arm hydraulic cylinder is hinged to the end of the small arm.

[0011] The first slewing mechanism includes a first internal gear slewing bearing and a first slewing motor; the lower frame is bolted to the inner ring of the first internal gear slewing bearing, and the upper frame is bolted to the outer ring of the first internal gear slewing bearing; the housing of the first slewing motor is fixedly connected to the upper frame, and the first internal gear slewing bearing and the first slewing motor are driven by gear meshing.

[0012] The second slewing mechanism includes a second internal gear slewing bearing and a second slewing motor; the upper frame is bolted to the inner ring of the second internal gear slewing support, and the rotary platform is bolted to the outer ring of the second internal gear slewing support; the housing of the second slewing motor is fixedly connected to the rotary platform, and the second internal gear slewing bearing and the second slewing motor are driven by gear meshing.

[0013] The wheels include a driven wheel and a driving wheel; the driven wheel is arranged at the front end of the bottom of the lower frame; the driving wheel is arranged at the rear end of the bottom of the lower frame and is driven by a hydraulic motor.

[0014] A rotating shaft is arranged at the bottom of the lower frame, and the driven wheel is connected to both ends of the rotating shaft.

[0015] The small arm is composed of an adjustment part, a bending part, and a hammer head part; the bending part is hinged to the large arm, the bottom end of the hammer head part is connected to the blank holding hammer head, and the end of the adjustment part is hinged to the piston rod end of the small arm hydraulic cylinder; an included angle α is formed between the adjustment part and the hammer head part, and 110° ≤ α ≤ 135°.

[0016] The material of the blank holding hammer head is 310S stainless steel.

[0017] The bottom end of the hammer head part is bolted to the blank holding hammer head.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1) The present utility model feeds materials through a hopper. When a material jamming phenomenon occurs at the furnace mouth of the intermediate frequency furnace, the upper frame is rotated so that the blank holding mechanism is located above the furnace mouth, and the scrap steel jam is pressed into the furnace by the blank holding hammer head. That is, the present novel integrates the functions of blank holding and feeding, which can improve the operation efficiency and operation safety factor of blank holding and feeding.

[0020] 2) An angle α is formed between the adjustment portion of the forearm and the hammer head of the utility model, which can increase the adjustment angle of the pressing hammer head, is conducive to moving and pressing the stuck material at multiple angles, and improves the pressing effect and efficiency.

[0021] 3) The pressing hammer head of the utility model is made of 310s stainless steel, has high heat resistance and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0023] Figure 1 The utility model is a structural schematic diagram of a charging and pressing vehicle for a medium frequency furnace.

[0024] Figure 2 It is a structural schematic diagram of the material pressing mechanism of the utility model.

[0025] Figure 3 It is a schematic diagram of the structure of the small arm of the utility model.

[0026] Figure 4 It is a schematic diagram of the first rotary mechanism of the utility model.

[0027] Figure 5 It is a feeding schematic diagram of the utility model.

[0028] Figure 6 It is a schematic diagram of material pressing of the utility model.

[0029] Description of reference numerals:

[0030] In the figure: 1. Car body 11. Lower frame 12. Upper frame 2. First slewing mechanism 3. Wheels 4. Hopper 5. Second slewing mechanism 6. Pressing mechanism 7. Hopper hydraulic cylinder 8. Control box 21. First internal gear slewing bearing 22. First slewing motor 31. Driven wheel 32. Driving wheel 33. Hydraulic motor 34. Rotating shaft 61. Slewing platform 62. Big arm 63. Small arm 64. Big arm hydraulic cylinder 65. Small arm hydraulic cylinder 66. Pressing hammer head 631. Adjustment part 632. Bending part 633. Hammer head DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0032] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings:

[0033] likeFigures 1 to 6 As shown in the figure, the utility model provides a feeding and pressing vehicle for an intermediate frequency furnace, which comprises a vehicle body 1. The vehicle body 1 includes an upper frame 12 and a lower frame 11. A first slewing mechanism 2 is arranged on the lower frame 11. The first slewing mechanism 2 is connected to the upper frame 12 and can drive the upper frame 12 to rotate. Wheels 3 are arranged at the bottom of the lower frame 11.

[0034] A hopper 4, a second slewing mechanism 5 and a pressing mechanism 6 are arranged on the upper frame 12. The bottom of the hopper 4 is hinged to the upper frame 12. Hopper hydraulic cylinders 7 are arranged on both sides of the upper frame 12. The cylinder body of the hopper hydraulic cylinder 7 is hinged to the upper frame 12, and the piston rod end of the hopper hydraulic cylinder 7 is hinged to the hopper 4. The second slewing mechanism 5 is connected to the pressing mechanism 6 and can drive the pressing mechanism 6 to rotate.

[0035] The pressing mechanism 6 includes a slewing platform 61, a boom 62, a forearm 63, a boom hydraulic cylinder 64, a forearm hydraulic cylinder 65 and a pressing hammer head 66. One end of the boom 62 is hinged to the slewing platform 61, and the other end is hinged to the forearm 63. The bottom end of the forearm 63 is connected to the pressing hammer head 66. The cylinder body of the boom hydraulic cylinder 64 is hinged to the slewing platform 61, and the piston rod end of the boom hydraulic cylinder 64 is hinged to the lower part of the boom 62. The cylinder body of the forearm hydraulic cylinder 65 is hinged to the upper part of the boom 62, and the piston rod end of the forearm hydraulic cylinder 65 is hinged to the end of the forearm 63.

[0036] The first slewing mechanism 2 includes a first internal gear slewing bearing 21 and a first slewing motor 22. The lower frame 11 is connected to the inner ring of the first internal gear slewing bearing 21 by bolts, and the upper frame 12 is connected to the outer ring of the first internal gear slewing bearing 21 by bolts. The housing of the first slewing motor 22 is fixedly connected to the upper frame 12, and the first internal gear slewing bearing 21 and the first slewing motor 22 are driven by gear meshing.

[0037] The second slewing mechanism 5 includes a second internal gear slewing bearing and a second slewing motor. The upper frame 12 is connected to the inner ring of the second internal gear slewing support by bolts, and the slewing platform 61 is connected to the outer ring of the second internal gear slewing support by bolts. The housing of the second slewing motor is fixedly connected to the slewing platform 61, and the second internal gear slewing bearing and the second slewing motor are driven by gear meshing.

[0038] The wheels 3 include a driven wheel 31 and a driving wheel 32. The driven wheel 31 is arranged at the front end of the bottom of the lower frame 11, and the driving wheel 32 is arranged at the rear end of the bottom of the lower frame 11 and is driven by a hydraulic motor 33. The housing of the hydraulic motor 33 is connected to the lower frame 11. A rotating shaft 34 is arranged at the bottom of the lower frame 11, and the driven wheel 31 is connected to both ends of the rotating shaft 34.

[0039] The small arm 63 is composed of an adjustment part 631, a bending part 632, and a hammer head part 633. The bending part 632 is hinged to the large arm 62. The bottom end of the hammer head part 633 is connected to the blanking hammer head 66. The end of the adjustment part 631 is hinged to the piston rod end of the small arm hydraulic cylinder 65. An included angle α is formed between the adjustment part 631 and the hammer head part 633, and α is 120°.

[0040] The material of the blanking hammer head 66 is 310S stainless steel. The bottom end of the hammer head part 633 and the blanking hammer head 66 can be connected by bolts.

[0041] In this embodiment, a control box 8 can also be provided. An electric control box and a hydraulic station are arranged in the control box 8. The control box 8 is arranged on the upper frame 12 and is located between the hopper 4 and the blanking mechanism 6. The hydraulic station drives the hydraulic motor 33, the hopper hydraulic cylinder 7, the large arm hydraulic cylinder 64, the small arm hydraulic cylinder 65, the first slewing motor 22, and the second slewing motor to act. The hydraulic station is electrically connected to the electric control box.

[0042] The working process of the present utility model is as follows:

[0043] When feeding, the hopper hydraulic cylinder 7 acts, and the hopper 7 tilts for feeding. When a material jamming phenomenon occurs at the furnace mouth of the intermediate frequency furnace, the upper frame 12 is rotated through the first slewing mechanism 2, so that the blanking mechanism 6 is located above the furnace mouth; by rotating the slewing platform 61 through the second slewing mechanism 5, and the coordinated action of the large arm hydraulic cylinder 64 and the small arm hydraulic cylinder 65, the working position and angle of the blanking hammer head 66 can be adjusted to perform material dialing and pressing, thereby solving the problem of material jamming.

[0044] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the specific details in the above embodiments. Within the technical concept scope of the present utility model, various simple modifications can be made to the technical solutions of the present utility model, and these simple modifications all belong to the protection scope of the present utility model. In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present utility model will not separately describe various possible combination methods. In addition, any combination can be made between various different embodiments of the present utility model as long as it does not violate the idea of the present utility model, and it should also be regarded as the content disclosed by the present utility model.

Claims

1. A charging and pressing vehicle for a medium frequency furnace, characterized in that: The vehicle comprises a vehicle body; the vehicle body comprises an upper frame and a lower frame; a first rotating mechanism is arranged on the lower frame, the first rotating mechanism is connected to the upper frame and can drive the upper frame to rotate; a wheel is arranged at the bottom of the lower frame; The upper frame is provided with a hopper, a second rotary mechanism and a material pressing mechanism; the bottom of the hopper is hinged to the upper frame, and hopper hydraulic cylinders are provided on both sides of the upper frame, the cylinder body of the hopper hydraulic cylinder is hinged to the upper frame, and the piston rod end of the hopper hydraulic cylinder is hinged to the hopper; The second rotary mechanism is connected to the pressing mechanism and can drive the pressing mechanism to rotate; The material pressing mechanism includes a rotating platform, a boom, an arm, a boom hydraulic cylinder, an arm hydraulic cylinder and a pressing hammer; one end of the boom is hinged to the rotating platform, the other end is hinged to the arm, and the bottom end of the arm is connected to the pressing hammer; the cylinder body of the boom hydraulic cylinder is hinged to the rotating platform, and the piston rod end of the boom hydraulic cylinder is hinged to the lower part of the boom; the cylinder body of the arm hydraulic cylinder is hinged to the upper part of the boom, and the piston rod end of the arm hydraulic cylinder is hinged to the end of the arm.

2. A charging and pressing vehicle for a medium frequency furnace according to claim 1, characterized in that: The first rotary mechanism includes a first internally-toothed rotary bearing and a first rotary motor; the lower frame is connected to the inner ring of the first internally-toothed rotary bearing by bolts, and the upper frame is connected to the outer ring of the first internally-toothed rotary bearing by bolts; the outer shell of the first rotary motor is fixedly connected to the upper frame, and the first internally-toothed rotary bearing and the first rotary motor are driven by gear meshing.

3. A charging and pressing vehicle for a medium frequency furnace according to claim 1 or 2, characterized in that: The second rotating mechanism includes a second internally-toothed rotating bearing and a second rotating motor; the upper frame is connected to the inner ring of the second internally-toothed rotating bearing by bolts, and the rotating platform is connected to the outer ring of the second internally-toothed rotating bearing by bolts; the outer shell of the second rotating motor is fixedly connected to the rotating platform, and the second internally-toothed rotating bearing and the second rotating motor are driven by gear meshing.

4. A charging and pressing vehicle for a medium frequency furnace according to claim 1, characterized in that: The wheels include a driven wheel and a driving wheel; the driven wheel is arranged at the front end of the bottom of the lower frame; the driving wheel is arranged at the rear end of the bottom of the lower frame and is driven by a hydraulic motor.

5. A charging and pressing vehicle for a medium frequency furnace according to claim 4, characterized in that: A rotating shaft is provided at the bottom of the lower frame, and the driven wheels are connected to both ends of the rotating shaft.

6. A charging and pressing vehicle for a medium frequency furnace according to claim 1, characterized in that: The forearm is composed of an adjusting part, a bending part and a hammer head; the bending part is hinged to the upper arm, the bottom end of the hammer head is connected to the pressing hammer head, and the end of the adjusting part is hinged to the piston rod end of the forearm hydraulic cylinder; the adjusting part and the hammer head form an angle α, 110°≤α≤135°.

7. A charging and pressing vehicle for a medium frequency furnace according to claim 1, characterized in that: The material of the pressing hammer head is 310S stainless steel.

8. A charging and pressing vehicle for a medium frequency furnace according to claim 6, characterized in that: The bottom end of the hammer head is connected with the pressing hammer head through bolts.

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