Jacking roller belt device for discharging of heating furnace and using method of jacking roller belt device

Abstract

The invention provides a jacking roller belt device for discharging of a heating furnace and a using method of the jacking roller belt device. The device comprises a jacking roller belt for transferring a blank from a heating furnace to a rolling mill roller way, wherein the jacking roller belt comprises a jacking roller belt rack, a jacking device, a roller belt and a roller belt driver. The moving direction of the roller belt is perpendicular to the moving direction of the rolling mill roller way, the roller belt comprises a plurality of parallel roller sets, each roller set is independently provided with a roller belt driving machine, and each roller set comprises a plurality of rollers evenly distributed at intervals. The roller belt driving machine drives the rollers to rotate to drive the blanks to move to the position above the rolling mill roller way from the heating furnace, the jacking device drives the jacking roller belt rack to descend to enable the blanks to fall onto the rolling mill roller way, and then the next blank is reset and transferred. The problem that in the prior art, when a roller hearth type heating furnace and a rolling mill roller bed are perpendicularly arranged, the blank conveying efficiency is low is solved.

Description

Technical Field

[0001] The invention relates to the technical field of iron and steel metallurgical equipment, and in particular to a lifting roller belt device for discharging materials from a heating furnace and a use method thereof. Background Art

[0002] In iron and steel metallurgical production, the roller-bottom heating furnace and the rolling mill roller are usually arranged vertically at 90 degrees. Due to this arrangement, the traditional billet conveying method has the following problems: although the discharge roller of the heating furnace and the rolling mill roller are arranged as close as possible, after the billet is delivered to the place, it is still necessary to lift the billet to the rolling mill roller by a special gantry crane. This method leads to a long discharge time and affects production efficiency. At the same time, the use of gantry cranes for lifting also increases equipment investment and operation and maintenance costs, and there are certain safety hazards.

[0003] At present, there is no device and method in the industry that can realize fast, safe and efficient billet conveying when the roller-bottom heating furnace and the rolling mill roller are arranged vertically. Therefore, it is urgent to develop a new billet conveying device to solve the problems existing in the prior art. Summary of the invention

[0004] The object of the present invention is to provide a lifting roller belt device for discharging materials from a heating furnace and a method for using the same, so as to solve the technical problem of low billet conveying efficiency when a roller bottom heating furnace and a rolling mill roller table are arranged vertically in the prior art.

[0005] To achieve the above purpose, the technical solution provided by the present invention is:

[0006] In a first aspect, the present invention provides a lifting roller belt device for discharging a material from a heating furnace, comprising: a lifting roller belt for transferring a blank from a heating furnace to a roller table of a rolling mill;

[0007] The lifting roller belt comprises: a lifting roller belt frame, a lifting device for driving the lifting roller belt frame to lift up and down as a whole, a roller belt fixed on the lifting roller belt frame, and a roller belt driving machine for driving the roller belt to rotate and drive the blank to move;

[0008] The movement direction of the roller belt is perpendicular to the movement direction of the rolling mill roller table;

[0009] The roller belt includes a plurality of parallel roller groups, each roller group is independently equipped with a roller belt driver, and each roller group includes a plurality of rollers evenly spaced at intervals;

[0010] The roller belt driver drives the roller to rotate and drives the billet to move from the heating furnace to the top of the rolling mill roller table. The jacking device drives the jacking roller belt frame to descend and drop the billet onto the rolling mill roller table, and then resets to transfer the next billet.

[0011] In some optional embodiments of the present invention, the center line of the lifting roller belt is colinear or parallel to the center line of the heating furnace.

[0012] In some optional embodiments of the present invention, each roller includes: a seat body, roller bearing seats for fixing roller bearings are provided on both sides of the seat body, the roller shaft is rotatably connected to the seat body through the roller bearing, the roller is key-connected to the roller shaft, and a sprocket is fixed at one end of the roller shaft; the roller belt drive is connected to each sprocket in the same roller group through a chain, and drives the roller to rotate synchronously.

[0013] Preferably, an opening is provided on the top of the seat body, and the width of the opening is greater than the diameter of the roller shaft.

[0014] In some optional embodiments of the present invention, the lifting roller belt frame includes a roller belt inner frame for carrying the roller belt, and an auxiliary inner frame hoisted on the roller belt inner frame for installing a roller belt drive machine; the lifting device drives the roller belt inner frame to rise and fall.

[0015] In some optional embodiments of the present invention, it also includes a rolling mill replacement roller located on the rolling mill roller for conveying blanks to the rolling mill, which includes: a rolling mill replacement roller frame fixed to the ground, a plurality of replacement roller idlers are arranged on the rolling mill replacement roller frame, and each of the replacement roller idlers is equipped with an independent replacement roller drive; wherein at least one replacement roller idler is arranged between adjacent roller groups.

[0016] Preferably, the center line of the rolling mill replacement roller is parallel to the center line of the heating furnace.

[0017] In a second aspect, the present invention provides a method for using the lifting roller belt device for discharging materials from a heating furnace as described in the first aspect, comprising the following steps:

[0018] The billet is transported from the heating furnace to the top of the rolling mill roller table through a multi-pass roller group;

[0019] Control the lifter to drive the roller belt to descend as a whole, and drop the blank onto the roller table of the rolling mill;

[0020] The rolling mill roller conveys the billet to the next process;

[0021] The lifter resets the roller belt as a whole and prepares to transfer the next blank.

[0022] In some optional embodiments of the present invention, the roller group first transports the billet from the heating furnace to the top of the replacement roller table of the rolling mill. After the billet falls onto the replacement roller table of the rolling mill, the replacement roller table idler transports the billet to the rolling mill roller table, and then the jacking device resets the roller belt as a whole to prepare for the transfer of the next billet.

[0023] Preferably, the discharging roller of the heating furnace is arranged perpendicularly to the roller of the rolling mill at 90 degrees.

[0024] Preferably, the center line of the rolling mill replacement roller is parallel to the center line of the heating furnace.

[0025] The beneficial effects of the present invention are:

[0026] 1. The lifting roller belt device of the present invention solves the problem of low billet conveying efficiency when the roller-bottom heating furnace and the rolling mill roller table are arranged vertically, and there is no need to use a gantry crane for lifting, which significantly shortens the discharge time.

[0027] 2. The present invention adopts multiple sets of independent transmission and integral lifting mechanisms, which have simple and practical structure, reliable operation and convenient maintenance.

[0028] 3. The roller of the present invention adopts an integrated design, and the seat body, roller, bearing and sprocket are closely combined, which is strong and durable to use and prolongs the service life of the equipment.

[0029] 4. The method of the present invention is simple to operate, has a high degree of automation, improves production efficiency, and reduces labor costs and safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments disclosed in the present invention, the drawings of the embodiments are briefly introduced below. These drawings are only used for illustrative purposes and are not intended to limit the protection scope of the present invention.

[0031] Figure 1 It is a front view schematic diagram of a lifting roller belt device for discharging materials from a heating furnace according to the present invention;

[0032] Figure 2 It is a top view schematic diagram of a lifting roller belt device for discharging materials from a heating furnace according to the present invention;

[0033] Figure 3 It is a left side schematic diagram of a lifting roller belt device for discharging materials from a heating furnace according to the present invention;

[0034] Figure 4 It is a front schematic view of the jacking roller belt of the present invention;

[0035] Figure 5 is a schematic top view of the jacking roller belt of the present invention;

[0036] Figure 6 It is a left side schematic diagram of the jacking roller belt of the present invention;

[0037] Figure 7 Schematic diagram of the cross section of the roller of the present invention Figure 1 ;

[0038] Figure 8 Schematic diagram of the cross section of the roller of the present invention Figure 2 , in which the seat is hidden;

[0039] Fig. 9 It is a front view schematic diagram of the seat body of the present invention;

[0040] Fig.10 is a schematic front view of a roller replacement table of a rolling mill according to the present invention;

[0041] Fig.11 It is a top view schematic diagram of a rolling mill replacement roller table of the present invention;

[0042] Fig.12 It is a left schematic view of the replacement roller table of the rolling mill of the present invention. DETAILED DESCRIPTION

[0043] The technical solution of the present invention (including the preferred technical solution) is further described in detail below by means of the accompanying drawings and by listing some optional embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Example 1: Basic structure

[0045] like Figures 1 to 12 As shown, this embodiment provides a basic structure of a lifting roller belt device for discharging materials from a heating furnace. The device is mainly used to solve the problem of billet transportation when a roller-bottom heating furnace is arranged perpendicularly to a rolling mill roller table at 90 degrees.

[0046] The lifting roller belt device includes: a lifting roller belt for transferring the billet from the heating furnace to the rolling mill roller table 300;

[0047] A lifting roller belt 100 comprising:

[0048] Lifting roller belt frame: includes roller belt inner frame 101 and attached inner frame 102. Roller belt inner frame 101 is the main supporting structure of the lifting roller belt, used to carry the roller belt; attached inner frame 102 is installed on the roller belt inner frame 101 to strengthen the structural strength of the inner frame and to install the roller belt drive 104. This split design is easy to install and maintain, while ensuring the stability of the overall structure.

[0049] The lifting roller belt 100 is the supporting structure of the whole device, which is welded by steel structure and has sufficient strength and rigidity to bear the weight of the blank. The surface of the frame is treated with rust prevention to extend the service life.

[0050] Lifter 105: Four sets of oil cylinders are arranged at the four corners of the frame, and the overall lifting is achieved through synchronous control. Four sets of oil cylinders are selected to ensure smooth lifting, avoid uneven movement caused by eccentric loading, and provide sufficient load-bearing capacity.

[0051] Roller belt: It is designed as 3 parallel roller groups 103, each roller group 103 contains 9 evenly distributed rollers, a total of 27 rollers. The arrangement direction of the roller group is 90 degrees perpendicular to the movement direction of the rolling mill roller. This 3×9 layout design fully considers the size and weight distribution of the billet, ensuring stable support of the billet during transportation to avoid deformation.

[0052] Roller belt drive 104: Each roller group 103 is equipped with an independent drive, with a total of 3 independent transmissions. The advantages of the independent transmission design are: each group of rollers can be controlled independently according to the position of the blank, reducing the load of a single drive, improving system reliability, and a single drive failure does not affect the overall operation.

[0053] In some embodiments of the present invention, the center line of the lifting roller belt is colinear or parallel to the center line of the heating furnace.

[0054] Example 2: Roller structure design

[0055] This embodiment focuses on the structural design of the roller. The roller is a key part of the entire device, and its design features are:

[0056] Integrated structure: roller 106 tightly integrates seat 1061, roller 1062, bearing 1063 and sprocket 1064. This design has the following advantages: reducing the number of parts, improving reliability, easy installation and maintenance, more stable operation, and longer service life;

[0057] The top of the seat body 1061 is designed with an opening whose width is greater than the diameter of the roller shaft 1066, which is convenient for installation and maintenance. A bearing seat is arranged on each side of the seat body 1061, which is made of high-strength alloy steel and has a quenched surface to improve wear resistance.

[0058] Transmission mode: The roller is connected to the roller belt driver 104 through a sprocket 1064 and a chain. The reasons for using chain transmission are: high transmission efficiency, no slipping, easy maintenance and replacement, and reliable operation.

[0059] Example 3

[0060] In this embodiment, on the basis of the embodiment 1, a rolling mill replacement roller table 200 for conveying blanks to the rolling mill is provided on the rolling mill roller table 300;

[0061] The rolling mill replacement roller 200 includes: a rolling mill replacement roller frame 201 fixed to the ground, on which a plurality of replacement roller idlers 202 are arranged, each of which is equipped with an independent replacement roller drive 203; wherein at least one replacement roller idler 202 is arranged between adjacent roller groups 103.

[0062] In some embodiments of the present invention, the center line 210 of the rolling mill replacement roller table is parallel to the center line 400 of the heating furnace.

[0063] Example 4

[0064] This embodiment provides a specific method for using a lifting roller belt device:

[0065] (1) Initial state:

[0066] The lifting roller belt is in the raised position, flush with the heating furnace discharge roller table. This position design ensures that the blank can be smoothly transferred from the heating furnace discharge roller table to the lifting roller belt.

[0067] (2) Transportation stage:

[0068] Three rows of rollers run synchronously to transport the blank to the top of the rolling mill roller. The movement direction of the roller is 90 degrees perpendicular to the rolling mill roller. This arrangement makes full use of the limited space and realizes the shortest path transportation.

[0069] (3) Descending stage:

[0070] The jack drives the entire frame down to make the roller belt flush with the rolling mill roller table. This process is smooth and continuous, avoiding impact loads on the billet.

[0071] (4) Transfer stage:

[0072] The blank is smoothly transferred to the rolling mill roller table, where it is further transported. This seamless docking design greatly improves the transport efficiency.

[0073] Example 5

[0074] On the basis of Example 4, this embodiment sets a replacement roller on the rolling mill roller, mainly considering: ensuring a smooth transition of the billet, adapting to billets of different specifications, and facilitating speed control.

[0075] This embodiment provides a specific method for using a lifting roller belt device:

[0076] 1. Initial state:

[0077] The lifting roller belt 100 is in a raised state, higher than the rolling mill replacement roller table 200, and receives the billet from the discharge roller table of the heating furnace.

[0078] 2. Billet conveying:

[0079] The roller belt conveys the blank from the heating furnace to the top of the replacement roller table 200 of the rolling mill through 3 independently driven roller groups 103;

[0080] 3. Lifting roller belt action:

[0081] The lifting roller belt is controlled to descend as a whole by 4 groups of oil cylinders, so that 27 rollers in 3 vertical rows and 9 rows are flush with the replacement roller idlers 202.

[0082] 4. Blank transfer:

[0083] The rolling mill replacement roller table 200 is driven by four variable frequency drive motors to transport the billet to a position above the rolling mill roller table 300.

[0084] 5. Subsequent transportation:

[0085] After the billet falls onto the rolling mill roller, it is transported to the next process by the rolling mill roller support rollers.

[0086] In some embodiments of the present invention, the rolling mill replacement roller table 200 is flush with the rolling mill roller table 300 .

[0087] The effects of the device and method of the present invention in practical applications are as follows:

[0088] 1. Improved efficiency:

[0089] Compared with the traditional method of using gantry cranes: it eliminates the lifting link, reduces waiting time, improves production continuity, and reduces manual operation intensity;

[0090] 2. Improved safety: It avoids potential safety hazards during lifting, realizes fully automated operation, reduces manual intervention, and improves operation safety;

[0091] 3. Economic benefits: Reduced equipment investment (no need for gantry crane), lowered operating costs, improved production efficiency, and extended equipment life;

[0092] 4. Convenient maintenance: Due to the modular design: the fault point is easy to identify, maintenance and replacement are convenient, spare parts management is simple, and maintenance costs are reduced;

[0093] The invention solves the problem of low billet conveying efficiency when a roller bottom heating furnace and a rolling mill roller table are arranged vertically through reasonable structural design and motion control.

[0094] Its innovations are: 1. The use of lifting roller belts to achieve vertical blank transportation; 2. The integrated design of the rollers improves reliability; 3. Multiple sets of independent transmissions ensure operational stability; 4. The overall lifting mechanism achieves a smooth transition.

[0095] Those skilled in the art will readily appreciate that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, combinations, replacements, improvements, etc. made within the spirit and principles of the present invention are included within the protection scope of the present invention.

Claims

1. A lifting roller belt device for discharging materials from a heating furnace, characterized in that: include: The lifting roller belt that transfers the billet from the heating furnace to the rolling mill roller table; The lifting roller belt comprises: a lifting roller belt frame, a lifting device for driving the lifting roller belt frame to lift up and down as a whole, a roller belt fixed on the lifting roller belt frame, and a roller belt driving machine for driving the roller belt to rotate and drive the blank to move; The movement direction of the roller belt is perpendicular to the movement direction of the rolling mill roller table; The roller belt includes a plurality of parallel roller groups, each roller group is independently equipped with a roller belt driver, and each roller group includes a plurality of rollers evenly spaced at intervals; The roller belt driver drives the roller to rotate and drives the billet to move from the heating furnace to the top of the rolling mill roller table. The jacking device drives the jacking roller belt frame to descend and drop the billet onto the rolling mill roller table, and then resets to transfer the next billet.

2. The lifting roller belt device for discharging materials from a heating furnace according to claim 1 is characterized in that: The center line of the lifting roller belt is colinear or parallel with the center line of the heating furnace.

3. The lifting roller belt device for discharging materials from a heating furnace according to claim 1 or 2, characterized in that: Each roller includes: a seat body, roller bearing seats for fixing roller bearings are provided on both sides of the seat body, the roller shaft is rotatably connected to the seat body through the roller bearing, the roller is key-connected to the roller shaft, and a sprocket is fixed to one end of the roller shaft; the roller belt drive is connected to each sprocket in the same roller group through a chain, and synchronously drives the roller to rotate.

4. The lifting roller belt device for discharging materials from a heating furnace according to claim 3 is characterized in that: The top of the seat body is provided with an opening, and the width of the opening is greater than the diameter of the roller shaft.

5. The lifting roller belt device for discharging materials from a heating furnace according to claim 1, characterized in that: The lifting roller belt frame comprises a roller belt inner frame for carrying the roller belt, and an auxiliary inner frame hoisted on the roller belt inner frame for installing a roller belt driving machine; the lifting device drives the roller belt inner frame to rise and fall.

6. The lifting roller belt device for discharging materials from a heating furnace according to claim 1, 2, 4 or 5, characterized in that: It also includes a rolling mill replacement roller located on the rolling mill roller table for conveying blanks to the rolling mill, which includes: a rolling mill replacement roller table frame fixed to the ground, a plurality of replacement roller table idlers are arranged on the rolling mill replacement roller table frame, and each of the replacement roller table idlers is equipped with an independent replacement roller table drive machine; wherein at least one of the replacement roller table idlers is arranged between adjacent roller groups.

7. The lifting roller belt device for discharging materials from a heating furnace according to claim 6, characterized in that The center line of the rolling mill replacement roller is parallel to the center line of the heating furnace.

8. A method for using the lifting roller belt device for discharging materials from a heating furnace as claimed in any one of claims 1 to 7, characterized in that: The heating furnace discharge roller is arranged vertically at 90 degrees to the rolling mill roller. The use method comprises the following steps: The billet is transported from the heating furnace to the top of the rolling mill roller table through a multi-pass roller group; Control the lifter to drive the roller belt to descend as a whole, and drop the blank onto the roller table of the rolling mill; The rolling mill roller conveys the billet to the next process; The lifter resets the roller belt as a whole and prepares to transfer the next blank.

9. The method of use according to claim 8, characterized in that: The roller group first transports the billet from the heating furnace to the top of the replacement roller table of the rolling mill. After the billet falls onto the replacement roller table of the rolling mill, the replacement roller table idler transports the billet to the rolling mill roller table. Then the jacking device resets the roller belt as a whole to prepare for the transfer of the next billet.

10. The method of use according to claim 9, characterized in that: The center line of the rolling mill replacement roller is parallel to the center line of the heating furnace.

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