阅读说明：本技术 一种设有紧凑型步进机械结构的加热炉 (Heating furnace with compact stepping mechanical structure ) 是由 李坤鹏 陆明伟 王梦园 于 2021-09-01 设计创作，主要内容包括：本发明属于冶金行业轧钢加热炉技术领域,具体提供一种设有紧凑型步进机械结构的加热炉,包括步进式加热炉本体和多个紧凑型步进机械结构,紧凑型步进机械结构包括升降单元和平移单元,升降单元包括斜轨座、升降滚轮、升降轴和升降驱动设备,平移单元包括平移滚轮、平移框架和平移驱动设备,2个升降滚轮分别转动连接在升降轴的两端,2个升降轮与斜轨座匹配,升降驱动设备与升降轴连接；2个平移滚轮分别转动连接在2个升降滚轮内侧的升降轴上,2个平移滚轮与平移框架的下表面匹配,平移驱动设备与平移框架连接。本发明实现达到降低设备成本、压缩设备结构空间,便于安装维护,简化土建施工,设备故障率低,降低维护成本的目的。(The invention belongs to the technical field of steel rolling heating furnaces in the metallurgical industry, and particularly provides a heating furnace with a compact stepping mechanical structure, which comprises a stepping heating furnace body and a plurality of compact stepping mechanical structures, wherein each compact stepping mechanical structure comprises a lifting unit and a translation unit, each lifting unit comprises a diagonal rail seat, a lifting roller, a lifting shaft and a lifting driving device, each translation unit comprises a translation roller, a translation frame and a translation driving device, 2 lifting rollers are respectively and rotatably connected to two ends of each lifting shaft, 2 lifting wheels are matched with the diagonal rail seats, and the lifting driving devices are connected with the lifting shafts; 2 translation gyro wheels rotate respectively and connect on 2 inboard lift axles of lift gyro wheels, and 2 translation gyro wheels match with the lower surface of translation frame, and translation drive device is connected with the translation frame. The invention achieves the purposes of reducing equipment cost, compressing the structural space of the equipment, facilitating installation and maintenance, simplifying civil construction, reducing equipment failure rate and reducing maintenance cost.)

1. The heating furnace with the compact stepping mechanical structures is characterized by comprising a stepping heating furnace body and a plurality of compact stepping mechanical structures, wherein each compact stepping mechanical structure comprises a lifting unit and a translation unit, each lifting unit comprises an inclined rail seat (4), a lifting roller (1), a lifting shaft (3) and a lifting driving device (9), each translation unit comprises a translation roller (2), a translation frame (5) and a translation driving device (10), each lifting roller (1) and each translation roller (2) are provided with 2, the 2 lifting rollers (1) are respectively and rotatably connected to two ends of each lifting shaft (3), the 2 lifting wheels (1) are matched with the inclined rail seats (1), and the lifting driving devices (9) are connected with the lifting shafts (3); 2 translation gyro wheels (2) rotate respectively and connect on 2 lift axle (3) of lift gyro wheel (1) inboard, and 2 translation gyro wheels (2) match with the lower surface of translation frame (5), and translation drive equipment (10) are connected with translation frame (5), and translation frame (5) upper surface and this body coupling of marching type heating furnace.

2. The heating furnace with the compact stepping mechanism according to claim 1, wherein the inclined rail base (4) comprises 2 supporting plates (401) in the shape of right triangles, an inclined rail (402) and a limiting block (403), the inclined rail (402) is fixed on the inclined side of the supporting plate (401), and the limiting block (403) is fixedly arranged at the lowest end of the inclined side of the supporting plate (401).

3. A heating furnace provided with a compact stepping mechanism according to claim 2, wherein the acute angle of the supporting plate (401) at the lower end is 11 to 30 °.

4. A furnace provided with a compact stepping mechanism according to claim 1, wherein said lifting driving means (9) and said translation driving means (10) are hydraulic driving means or pneumatic driving means or electric driving means.

5. The furnace provided with a compact stepping mechanism according to claim 1, wherein the translation frame (5) of a plurality of compact stepping mechanisms is an integral structure, and the lower end of the movable beam (7) of the stepping furnace body is fixedly connected to the translation frame (5).

6. A furnace provided with compact stepping mechanisms according to claim 1, further comprising the same number of translation rail structures (6) as the compact stepping mechanisms, wherein the translation rail structures (6) are arranged on the lower surface of the translation frame (5), and each translation rail structure (6) is matched with the translation roller (2) at the corresponding position.

7. The heating furnace with the compact stepping mechanical structures according to claim 1, wherein each compact stepping mechanical structure is arranged on a concrete fixed foundation (11), a groove is formed in the middle of the concrete fixed foundation (11), a protrusion is arranged below the inclined rail seat (4), the protrusion of the inclined rail seat (4) is matched with the groove of the concrete fixed foundation (11), and the inclined rail seat (4) is fixed on the concrete fixed foundation (11) through a bolt.

Technical Field

The invention belongs to the technical field of steel rolling heating furnaces in the metallurgical industry, and particularly provides a heating furnace with a compact stepping mechanical structure.

Background

At present, customized, miniaturized and personalized production is increasingly popularized, and the technological level of blank hot-feeding and hot-filling in the hot processing industry is gradually improved. This requires that the step-type heating furnace for heating the ingot be further increased in demand for a small-sized heating furnace of medium-low throughput while ensuring the heating quality. The cost of small and medium-sized heating furnaces is particularly important.

At present, a stepping machine of a stepping heating furnace is complex and has high cost. The method has no cost advantage for small and medium-sized heating furnaces, and the complex structure is wasted.

Therefore, the invention aims to achieve the purposes of reducing equipment cost, simplifying equipment structure, facilitating installation and maintenance, simplifying civil construction, reducing equipment failure rate and reducing maintenance cost on the premise of ensuring stability, safety and durability.

Disclosure of Invention

In order to solve the technical problem, the invention provides a heating furnace with a compact stepping mechanical structure, so that the cost of a small and medium-sized stepping heating furnace is further reduced.

The invention is realized in this way, provide a heating furnace with compact step mechanical structure, including step-by-step heating furnace body and multiple compact step mechanical structure, every compact step mechanical structure includes lifting unit and translation unit, the lifting unit includes the inclined rail seat, hoists or lower the gyro wheel, hoists or lower the drive equipment, the translation unit includes translating the gyro wheel, translating the frame and translating the drive equipment, 2 lifting gyro wheels and translating the gyro wheel and all having, 2 lifting gyro wheels rotate and connect to both ends of the lifting shaft respectively, 2 lifting wheels match with inclined rail seat, the hoist or lower the drive equipment and connects with lifting shaft; 2 translation gyro wheels rotate respectively and connect on 2 inboard lift epaxial of lift gyro wheels, and 2 translation gyro wheels match with the lower surface of translation frame, and translation drive device and translation frame attach, translation frame upper surface and this body coupling of marching type heating furnace.

Preferably, the inclined rail seat comprises 2 supporting plates, inclined rails and limiting blocks, wherein the supporting plates are in the shape of right triangles, the inclined rails are fixed on the inclined edges of the supporting plates, and the limiting blocks are fixedly arranged at the lowest ends of the inclined edges of the supporting plates.

Further preferably, the acute angle of the support plate at the lower end is 11-30 °.

Further preferably, the lifting driving device and the translation driving device are hydraulic driving devices, pneumatic driving devices or electric driving devices.

Preferably, the translation frame of the plurality of compact stepping mechanical structures is of an integral structure, and the lower end of the movable beam of the stepping heating furnace body is fixedly connected to the translation frame.

Preferably, the number of the translation track structures is the same as that of the compact stepping mechanical structures, the translation track structures are arranged on the lower surface of the translation frame, and each translation track structure is matched with the translation roller at the corresponding position.

Preferably, each compact stepping mechanical structure is arranged on a concrete fixed foundation, a groove is formed in the middle of the concrete fixed foundation, a protrusion is arranged below the inclined rail seat, the protrusion of the inclined rail seat is matched with the groove of the concrete fixed foundation, and the inclined rail seat is fixed on the concrete fixed foundation through a bolt.

Compared with the prior art, the invention has the advantages that:

on the basis of ensuring that the operation requirement of the heating furnace is met and the operation safety and stability of the equipment are ensured, the stepping machine is compactly redesigned, and the purposes of reducing the equipment cost, compressing the structural space of the equipment, facilitating the installation and maintenance, simplifying the civil construction, reducing the failure rate of the equipment and reducing the maintenance cost are achieved.

Drawings

FIG. 1 is a sectional view of a walking-beam furnace provided with a compact stepping mechanism according to the present invention in the width direction of the furnace;

FIG. 2 is a sectional view of the walking-beam furnace of the present invention with a compact stepping mechanism in the furnace length direction;

fig. 3 is a control relationship diagram for controlling the operation of the compact stepping machine.

FIG. 4 is a diagram of the walking beam running track of the walking beam furnace.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and 2, the invention provides a heating furnace with compact stepping mechanical structures, which comprises a stepping heating furnace body and a plurality of compact stepping mechanical structures, wherein each compact stepping mechanical structure comprises a lifting unit and a translation unit, the lifting unit comprises a diagonal rail seat 4, a lifting roller 1, a lifting shaft 3 and a lifting driving device 9, the translation unit comprises a translation roller 2, a translation frame 5 and a translation driving device 10, 2 lifting rollers 1 and 2 are respectively arranged, 2 lifting rollers 1 are respectively and rotatably connected to two ends of the lifting shaft 3, 2 lifting wheels 1 are matched with the diagonal rail seat 1, and the lifting driving device 9 is connected with the lifting shaft 3; 2 translation gyro wheels 2 rotate respectively and connect on 1 inboard lift axle 3 of 2 lift gyro wheels, and 2 translation gyro wheels 2 match with the lower surface of translation frame 5, and translation drive device 10 is connected with translation frame 5, 5 upper surfaces of translation frame and this body coupling of marching type heating furnace.

During the operation of the walking beam furnace body, the operation of the single compact stepping mechanical structure is as follows: firstly, the lifting driving device 9 drives the lifting shaft 3 to enable the lifting shaft 3 to drive the lifting roller 1 to do lifting motion on the inclined rail seat 4, at the same time, the translation roller 2 is driven by the lifting shaft 3 to do lifting motion along the inclined rail seat 4, and simultaneously, the translation roller 2 and the translation frame 5 do relative motion, namely, although the translation roller 2 is lifted integrally, the rotation direction is opposite to that of the lifting roller 1, so that the translation frame 5 is not changed in the horizontal position but lifted only, after reaching the highest point, the translation driving device 10 drives the translation frame 5, the translation frame 5 makes forward motion on the translation roller 2, after reaching the target position, the lifting driving device 9 drives the lifting shaft 3 to do descending motion on the inclined rail seat 4, at the same time, the translation roller 2 also makes descending motion along the inclined rail seat 4 under the driving of the lifting shaft 3, and at the same time, the translation roller 2 and the translation frame 5 make relative motion, the whole horizontal position of the translation frame 5 is not changed but is reduced, after the lowest point is reached, the translation driving device 10 drives the translation frame 5, the translation frame 5 moves backwards on the translation roller 2 to the initial position, and a stepping action is finished.

Referring to fig. 3, the elevation driving device 9 and the translation driving device 10 are controlled by the controller, the elevation shaft 3 is driven and controlled to move by the elevation driving device 9, and the translation frame 5 is driven and controlled to move by the translation driving device 10.

As a specific structure of the inclined rail seat 4, in order to prevent the lifting roller 1 from falling off from the inclined rail seat 4, as an improvement of the technical solution, the inclined rail seat 4 includes a supporting plate 401, an inclined rail 402 and a limiting block 403, the number of the supporting plate 401 is 2, the inclined rail 402 is fixed on the hypotenuse of the supporting plate 401, and the limiting block 403 is fixedly arranged at the lowest end of the hypotenuse of the supporting plate 401.

Preferably, the support plate 401 is at an acute angle of 11-30 deg. at the lower end, as required for the stepping action.

Preferably, the lifting drive 9 and the translation drive 10 are hydraulic drives, pneumatic drives or electric drives.

In order to realize synchronous control, as an improvement of the technical scheme, the translation frame 5 of a plurality of compact stepping mechanical structures is of an integrated structure, and the lower end of a movable beam 7 of the stepping heating furnace body is fixedly connected to the translation frame 5.

The heating furnace with the compact stepping mechanical structure has a large translation distance and can be set randomly within the translation distance according to actual requirements; the translation frame 5 is driven to move up and down and translate through the movement of the lifting hydraulic cylinder and the translation hydraulic cylinder, and the blank is conveyed from the charging end to the discharging end.

Through the rectangular movement of the movable beam 7, the steel billet is firstly taken up by the walking beam to the fixed beam 8 and then is conveyed to the discharging end of the furnace from the furnace tail step by step.

Under the driving action of the compact stepping mechanical structure, the moving track curve of the movable beam 7 is shown as fig. 4:

during normal production, the movable beam 7 stops at the lowest and last position, the movable beam 7 stops at the point A before the periodic operation (the point A is the lower position at the back), the movable beam 7 starts to move upwards from the point A to the point B according to the operation action time table during the periodic operation, and the acceleration and deceleration processes are arranged in the middle. The movable beam 7 is positioned at the rear upper position at the point B, the movable beam 7 starts to move forwards in a translation mode from the point B to the point C, and the acceleration and deceleration processes are arranged in the middle. The movable beam 7 is positioned at the front upper position when in the position of C, the movable beam 7 starts to move downwards from the point position of C to the point position of D, and the acceleration and deceleration processes are arranged in the middle. The movable beam 7 is positioned at the front lower position when in D, the movable beam 7 starts to perform backward translational motion from the D point position to the A point position, and the acceleration and deceleration processes are arranged in the middle.

In order to facilitate the connection between the translation roller 2 and the translation frame 5, as an improvement of the technical scheme, the translation device further comprises translation rail structures 6 the same in number as the compact stepping mechanical structures, the translation rail structures 6 are arranged on the lower surface of the translation frame 5, and each translation rail structure 6 is matched with the translation roller 2 at the corresponding position.

In order to increase the stability of compact step machine, as the improvement of technical scheme, every compact step machine structure sets up on fixed basis 11 of concrete, and the recess is established at the fixed basis 11 middle part of concrete, establish the arch below the inclined rail seat 4, the protruding and the fixed basis 11's of concrete recess matching of inclined rail seat 4, and inclined rail seat 4 passes through the bolt fastening on fixed basis 11 of concrete.

In this embodiment, the driving device is a hydraulic driving device, that is, the lifting driving device 9 is a lifting hydraulic cylinder, and the translation driving device 10 is a translation hydraulic cylinder. The translation hydraulic cylinder is of a middle hinged structure and is used for driving the translation frame 5 to move along the horizontal direction. The translation hydraulic cylinder is positioned at the furnace outlet end and is superposed with the central line of the heating furnace, the hinged support at the tail end of the translation hydraulic cylinder is fixed on a concrete foundation, and the end of the piston rod is hinged with the translation frame. When the piston rod of the hydraulic cylinder stretches, the translation frame is pushed to move forwards or backwards along the horizontal direction. The lifting hydraulic cylinder is of a tail end hinged structure and is used for driving the lifting frame to move along the direction of the inclined plane of the lifting rail seat. Are symmetrically arranged along the central line of the heating furnace. The tail end hinge support is fixed on a concrete foundation, and the end of the piston rod is hinged with the lifting shaft 3. When the piston rod of the hydraulic cylinder extends, the lifting shaft 3 is pushed to move forwards or backwards along the inclined plane direction of the inclined rail seat 4, and the lifting shaft 3 is lifted and lowered.

In order to realize the consistency of control, an H-shaped steel lifting beam can be arranged to connect the lifting shafts 3 of different compact stepping machines to form a lifting frame, and the lifting hydraulic cylinder can realize the consistency control of all the lifting shafts 3.

In order to control the accuracy, as the improvement of the technical scheme, a compact stepping machine is structurally provided with a centering device of a lifting frame and a centering device of a translation frame, and a stroke detector is arranged on the mechanical part of the furnace bottom, so that each stepping stroke of the furnace bottom machine is detected, the deviation of the previous stepping stroke is corrected in the next stepping stroke, and the accuracy of the position of the blank in the furnace is ensured. The centering device is an outer centering device which is a guide roller arranged on the side part of the foundation, so that the frame is ensured to run along the central line of the furnace, and the blank is prevented from deviating.

The compact stepping mechanical mechanism has the functions of positive circulation, reverse circulation, stepping, intermediate holding, stepping waiting and the like, and all the functions are controlled by an electromagnetic proportional valve to realize the action of the hydraulic cylinder; linear displacement sensors are mounted on the drive to monitor the arrival rate (set travel distance) of each movement and to correct or compensate for the next same movement, requiring automatic control and manual operation.

The translation distance of the compact stepping machine is large, and the compact stepping machine can be set randomly within the translation distance according to actual needs; the translation frame 5 is driven to move up and down and translate through the movement of the lifting hydraulic cylinder and the translation hydraulic cylinder, and the blank is conveyed to the direction of the discharging end from the charging end.

Through the rectangular movement of the compact walking beam, the steel billet is firstly taken up by the walking beam to the fixed beam 8 and then is conveyed to the discharge end of the furnace from the furnace tail step by step.