Lifting guide mechanism of single electrode lifting arm of refining furnace

Abstract

The utility model relates to a lifting guide mechanism of a single electrode lifting arm of a refining furnace, which comprises a guide seat, a special-shaped wheel and a wheel shaft, and the special-shaped wheel is rotatably mounted on the guide seat through the wheel shaft; the roller surface of the special-shaped wheel is transversely attached to a plurality of surfaces of the outer side of the electrode lifting arm. According to the lifting guide device, the stability of the electrode lifting arm in the lifting process can be improved, the face gnawing probability is reduced, and the lifting guide device belongs to the technical field of lifting guide of the electrode lifting arm of the refining furnace.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting guidance of the electrode lifting arm of a refining furnace, and particularly relates to a lifting guidance mechanism for a single electrode lifting arm of a refining furnace. Background Art

[0002] The electrode lifting arm is a mechanical device for controlling the up and down movement of the electrode in the refining furnace. The lifting guidance mechanism on the electrode lifting arm ensures that the electrode lifting arm moves along a predetermined straight path during the up and down movement, preventing shaking or deviation.

[0003] As shown in the prior art Figure 1 The outer side of a single electrode lifting arm 1 of a refining furnace includes a vertical left groove 2, a right groove 3, and a vertical plane 4 connecting the left groove 2 and the right groove 3. The left groove 2 includes a vertical first inclined surface 5 and a second inclined surface 6, and the first inclined surface 5 and the second inclined surface 6 form an acute angle that is recessed inward; the right groove 3 includes a vertical third inclined surface 7 and a fourth inclined surface 8, and the third inclined surface 7 and the fourth inclined surface 8 form an acute angle that is recessed inward. The vertical lifting guidance mechanism of the single electrode lifting arm 1 uses two guide wheel assemblies to be installed side by side. The guide wheel group includes a retaining wheel 9 and a support 10. The retaining wheel 9 is rotatably installed on the support 10. The roller surface of the left retaining wheel 9 is attached to the first inclined surface 5, and the roller surface of the right retaining wheel 9 is attached to the fourth inclined surface 8, thereby playing a role in vertical lifting guidance. However, the existing guide wheel assembly has the following disadvantages: only one side of the roller surface of the retaining wheel abuts against an inclined surface of the electrode lifting arm, the guiding contact area is small, the guiding force is large, the electrode lifting arm is prone to shaking during the lifting process of the electrode lifting arm, so that the first inclined surface and the fourth inclined surface are severely rubbed and grooved by the retaining wheel, which is likely to cause damage to the electrode lifting arm. At the same time, the roller surface of the retaining wheel is also easily damaged, and the bearing is easily damaged by impact. Summary of the Utility Model

[0004] Aiming at the technical problems existing in the prior art, the purpose of the utility model is to provide a lifting guidance mechanism for a single electrode lifting arm of a refining furnace, which improves the stability during the lifting process of the electrode lifting arm and reduces the probability of grooving.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A lifting guidance mechanism for a single electrode lifting arm of a refining furnace includes a guide seat, a special-shaped wheel, and a wheel shaft. The special-shaped wheel is rotatably installed on the guide seat through the wheel shaft; the roller surface of the special-shaped wheel transversely abuts against multiple surfaces on the outer side of the electrode lifting arm.

[0007] As a preference, the roller surface of the special-shaped wheel includes a first conical surface, a second conical surface, a cylindrical surface, a third conical surface, and a fourth conical surface that are connected in sequence. The first conical surface and the second conical surface form an outwardly convex acute angle, and the third conical surface and the fourth conical surface form an outwardly convex acute angle. The first conical surface is in contact with the first inclined surface of the electrode lifting arm, the second conical surface is in contact with the second inclined surface of the electrode lifting arm, the cylindrical surface is in contact with the vertical plane of the electrode lifting arm, the third conical surface is in contact with the third inclined surface of the electrode lifting arm, and the fourth conical surface is in contact with the fourth inclined surface of the electrode lifting arm.

[0008] As a preference, the lifting and guiding mechanism further includes a bearing and a bearing cover. The special-shaped wheel is provided with a through hole penetrating the center, and the wheel shaft is symmetrically located in the through hole. The bearing is located in the bearing grooves at both ends of the through hole, and the two bearing covers for fixing the bearings are respectively fixed on the left and right end faces of the special-shaped wheel. The two ends of the wheel shaft passing through the central hole of the bearing cover are respectively fixed on the guiding seat.

[0009] As a preference, the guiding seat includes a bottom plate, a support column, and a fixing block. The two support columns are symmetrically fixed on the bottom plate on the left and right; a notch for fixing the end of the wheel shaft is provided on the support column, and a fixing block is installed above the notch.

[0010] As a preference, milling planes are arranged at the front and rear of the end of the wheel shaft located in the notch, and threaded through holes communicating with the notch are provided on the side of the column. By screwing a bolt into the threaded through hole, the bolt abuts against the milling plane to realize fine adjustment of the front and rear displacement of the special-shaped wheel.

[0011] As a preference, the roller surface of the special-shaped wheel is made of wear-resistant material.

[0012] As a preference, the roller surface of the special-shaped wheel is hardened steel, alloy, special plastic or rubber.

[0013] The utility model has the following advantages:

[0014] 1. The lifting and guiding mechanism of the utility model is provided with a special-shaped wheel. The roller surface of the special-shaped wheel is in contact with multiple outer surfaces of the electrode lifting arm, increasing the contact area of the lifting and guiding, evenly distributing the guiding force, and making the electrode lifting arm more stable during the lifting process.

[0015] 2. The special-shaped wheel has a first conical surface, a second conical surface, a cylindrical surface, a third conical surface, and a fourth conical surface that perfectly fit five surfaces on the electrode lifting arm, providing five guiding forces, increasing the guiding force area, significantly reducing the shaking of the electrode lifting arm during the lifting process, reducing the risk of surface gnawing, reducing the deformation of the lifting arm, also reducing the impact force on the bearing, and extending the service life of the lifting and guiding mechanism. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the working state of the lifting and guiding mechanism of a single electrode lifting arm in the prior art.

[0018] Figure 2 It is a schematic diagram of the working state of the lifting and guiding mechanism of a single electrode lifting arm of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of the lifting and guiding mechanism of a single electrode lifting arm of the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of a special-shaped wheel.

[0021] Figure 5 It is a schematic diagram of the structure of a wheel shaft.

[0022] Among them, 1 is the electrode lifting arm, 2 is the left groove, 3 is the right groove, 4 is the vertical plane, 5 is the first inclined plane, 6 is the second inclined plane, 7 is the third inclined plane, 8 is the fourth inclined plane, 9 is the retaining wheel, 10 is the support, 11 is the guiding seat, 12 is the special-shaped wheel, 13 is the wheel shaft, 14 is the first conical surface, 15 is the second conical surface, 16 is the cylindrical surface, 17 is the third conical surface, 18 is the fourth conical surface, 19 is the bearing, 20 is the bearing cover, 21 is the notch, 22 is the bottom plate, 23 is the support column, 24 is the fixing block, and 25 is the milling plane. Specific embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0024] Embodiment 1

[0025] Refer to Figures 2 - 5 , a lifting and guiding mechanism for a single electrode lifting arm 1 of a refining furnace, including a guiding seat 11, a special-shaped wheel 12 and a wheel shaft 13. The special-shaped wheel 12 is rotatably installed on the guiding seat 11 through the wheel shaft 13; the roller surface of the special-shaped wheel 12 is horizontally attached to multiple outer surfaces of the electrode lifting arm 1.

[0026] The roller surface of the special-shaped wheel 12 includes a first conical surface 14, a second conical surface 15, a cylindrical surface 16, a third conical surface 17, and a fourth conical surface 18 that are connected in sequence. The first conical surface 14 and the second conical surface 15 form an outwardly convex acute angle, and the third conical surface 17 and the fourth conical surface 18 form an outwardly convex acute angle. The first conical surface 14 is in contact with the first inclined surface 5 of the electrode lifting arm 1, the second conical surface 15 is in contact with the second inclined surface 6 of the electrode lifting arm 1, the cylindrical surface 16 is in contact with the vertical plane 4 of the electrode lifting arm 1, the third conical surface 17 is in contact with the third inclined surface 7 of the electrode lifting arm 1, and the fourth conical surface 18 is in contact with the fourth inclined surface 8 of the electrode lifting arm 1.

[0027] The lifting and guiding mechanism further includes a bearing 19 and a bearing cover 20. The special-shaped wheel 12 is provided with a through hole penetrating the center. The wheel shaft 13 is symmetrically located in the through hole. The bearing 19 is located in the bearing notches at both ends of the through hole. The bearing 19 is installed in the bearing notches. Two bearing covers 20 for fixing the bearing 19 are respectively fixed on the left and right end faces of the special-shaped wheel 12. Both ends of the wheel shaft 13 passing through the central hole of the bearing cover 20 are respectively fixed on the guiding seat 11.

[0028] The guiding seat 11 includes a bottom plate 22, a pillar 23, and a fixing block 24. The bottom plate 22 is fixed on a fixing bracket on the ground. Two pillars 23 are symmetrically fixed on the bottom plate 22 from left to right. The pillar 23 is provided with a notch 21 for fixing the end of the wheel shaft 13. A fixing block 24 is installed above the notch 21. Threaded holes are provided on the pillar 23 on both sides of the notch 21, and the fixing block 24 is correspondingly provided with threaded holes. The fixing block 24 is fixed on the pillar 23 by screwing bolts into the threaded holes of the fixing block 24 and the pillar 23, so that the wheel shaft 13 will not run upwards.

[0029] Milling planes 25 are arranged at the front and rear of the end of the wheel shaft 13 located in the notch 21. Threaded through holes communicating with the notch 21 are provided on the side surface of the column. By screwing bolts into the threaded through holes, the bolts abut against the milling planes 25 to realize fine adjustment of the front and rear displacement of the special-shaped wheel 12.

[0030] The roller surface of the special-shaped wheel 12 is made of wear-resistant material.

[0031] Because there are three electrode lifting arms 1 on one side of a conventional refining furnace, one lifting and guiding mechanism of this embodiment can be separately installed on each electrode lifting arm 1.

[0032] Working principle:

[0033] The five surfaces of the roller surface of the special-shaped wheel 12 of the lifting and guiding mechanism are attached to the five corresponding outer surfaces of the electrode lifting arm 1. The guiding contact surface between the special-shaped wheel 12 and the electrode lifting arm 1 is larger. The special-shaped wheel 12 evenly distributes the guiding force, ensuring that the special-shaped wheel 12 rotates stably with the lifting of the electrode lifting arm 1, so that the lifting of the electrode lifting arm 1 is smoother and more stable.

[0034] Embodiment 2

[0035] Two lifting guiding mechanisms are installed on each electrode lifting arm 1, and the two lifting guiding mechanisms are vertically arranged in the up and down directions.

[0036] The roller surface of the profiled wheel 12 is made of hardened steel, alloy, special plastic or rubber.

[0037] The content not mentioned in this embodiment is the same as that in Embodiment 1.

[0038] The above further describes the present utility model with the aid of specific embodiments. However, it should be understood that the specific description herein should not be construed as a limitation on the essence and scope of the present utility model. Various modifications made by those of ordinary skill in the art to the above embodiments after reading this specification all fall within the scope protected by the present utility model.

Claims

1. A lifting guide mechanism for a single electrode lifting arm of a refining furnace, comprising a guide seat, characterized in that: It also includes a special-shaped wheel and a wheel axle. The special-shaped wheel is rotatably installed on the guide seat through the wheel axle. The roller surface of the special-shaped wheel is horizontally fitted with multiple surfaces outside the electrode lifting arm.

2. A lifting guide mechanism for a single electrode lifting arm of a refining furnace according to claim 1, characterized in that: The roller surface of the special-shaped wheel includes a first conical surface, a second conical surface, a cylindrical surface, a third conical surface and a fourth conical surface which are connected in sequence. The first conical surface and the second conical surface form an acute angle bulging outward, and the third conical surface and the fourth conical surface form an acute angle bulging outward; the first conical surface fits with the first inclined surface of the electrode lifting arm, the second conical surface fits with the second inclined surface of the electrode lifting arm, the cylindrical surface fits with the vertical plane of the electrode lifting arm, the third conical surface fits with the third inclined surface of the electrode lifting arm, and the fourth conical surface fits with the fourth inclined surface of the electrode lifting arm.

3. A lifting and guiding mechanism for a single electrode lifting arm of a refining furnace according to claim 1, characterized in that: The lifting guide mechanism also includes bearings and bearing covers. The special-shaped wheel is provided with a through hole running through the center, the wheel axle is symmetrically located in the through hole, the bearings are located at the bearing notches at both ends of the through hole, the bearing covers of the two fixed bearings are respectively fixed on the left and right end surfaces of the special-shaped wheel, and the two ends of the wheel axle running through the center hole of the bearing cover are respectively fixed on the guide seat.

4. A lifting and guiding mechanism for a lifting arm of a single electrode of a refining furnace according to claim 3, characterized in that: The guide seat comprises a bottom plate, a support column and a fixing block. Two support columns are fixed on the bottom plate symmetrically. Notches for fixing the ends of the wheel axles are arranged on the support columns, and the fixing blocks are installed above the notches.

5. A lifting and guiding mechanism for a lifting arm of a single electrode of a refining furnace according to claim 4, characterized in that: Milling planes are arranged at the front and rear ends of the wheel axle in the slot, and threaded through holes connected to the slots are arranged on the side of the column. Bolts are screwed into the threaded through holes, and the bolts abut against the milling planes to realize fine adjustment of the front and rear displacement of the special-shaped wheel.

6. The lifting and guiding mechanism for a lifting arm of a single electrode of a refining furnace according to claim 1, characterized in that: The roller surface of the special-shaped wheel is made of wear-resistant material.

7. The lifting and guiding mechanism for a lifting arm of a single electrode of a refining furnace according to claim 1, characterized in that: The roller surface of the profiled wheel is made of hardened steel, alloy, special plastic or rubber.

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