Gear changing device and method for vertical agitator

Abstract

The present invention discloses a gear changing device for a vertical agitator, comprising a gear pair interchangeable part and a rotating part; the gear pair interchangeable part comprises at least two groups of gear pair assemblies and a connecting frame, the two ends of all the gear pair assemblies are connected together through the connecting frame, the gear pair assemblies are arranged in parallel, and the gear pair assemblies include gears meshed with the top ends of the stirring rods in the melting furnace; the rotating part comprises a supporting frame, a rotating shaft, and a driving member, the supporting frame is located on both sides of the melting furnace, the rotating shaft passes through the middle of the connecting frames at both ends and extends out, the rotating shaft is rotatably connected to the supporting frame, the rotating shaft is fixedly connected to the connecting frame, the driving member is connected to the rotating shaft, and also comprises a lifting and rotating assembly, the two ends of the gear pair assembly are connected to the lifting and rotating assembly, and the lifting and rotating assembly is installed on the connecting frame; the present invention also provides a gear changing method for a vertical agitator. The beneficial effects of the present invention: an automated replacement mode is realized; the replacement time is extremely short; it is free from manual work, and the personal safety of manual workers is effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the field of glass production, and in particular to a gear changing device and method for a vertical stirrer. Background Art

[0002] Vertical agitator is one of the special equipment for float glass production, mainly used to improve the melting uniformity of float glass in the neck. Vertical agitator is a special equipment for forced homogenization of glass liquid. It eliminates or reduces the defects that cannot be overcome by natural homogenization through mechanical stirring of stirring blades, ensures the thermal uniformity and chemical uniformity of glass liquid entering the forming area, and thus produces float glass with excellent optical properties and surface quality.

[0003] The vertical mixing system is mainly composed of six parts, namely the vertical agitator part, the cooling circulation part, the lifting and walking part, the water bag bracket and the lifting system part, the ladder operating platform, and the transmission system part. Among them, the stability of the transmission system plays a vital role in the operation of the overall equipment. In the float glass production process, the gears of the transmission system are replaced regularly to ensure the accuracy and stability of the overall mixing system. The traditional gear replacement has the following disadvantages: (1) It is a purely manual operation with a long replacement time, generally requiring 4-6 hours, resulting in serious defects in the glass quality and huge economic losses. For a 1200t float glass production line, the output of unqualified glass during the replacement of the transmission system reaches about 300t. (2) Due to the long replacement time, the stirring rod must be pulled out of the melting furnace at about 1000℃ to prevent the glass liquid on the stirring rod from solidifying due to long-term stoppage. The risk factor of the replacement personnel is increased invisibly during the process of pulling out the stirring rod; (3) The ambient temperature during the replacement process is high, and many rotation personnel need to be arranged. In addition, working in a high temperature environment is very likely to cause personal injury, and there are many examples of burns and respiratory system damage. (4) After replacement, it is easy for the stirring rod to rotate in the wrong direction. If it is not discovered in time, the economic loss will be even more difficult to estimate.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The technical problem to be solved by the present invention is: how to solve the problem of low safety of personnel in the existing gear changing method.

[0006] The present invention solves the above technical problems through the following technical means:

[0007] A gear changing device for a vertical agitator comprises a gear pair interchangeable part and a rotating part; the gear pair interchangeable part comprises at least two groups of gear pair assemblies capable of lifting and rotating, and a connecting frame, both ends of all the gear pair assemblies are connected together through the connecting frame, the gear pair assemblies are arranged in parallel, and the gear pair assemblies include gears meshing with the top ends of the stirring rods in the melting furnace; the rotating part comprises a supporting frame, a rotating shaft, and a driving member, the supporting frames are located on both sides of the melting furnace, the rotating shaft passes through the middle of the connecting frames at both ends and extends out, the two ends of the rotating shaft extending out are rotatably connected to the supporting frames, the rotating shaft is fixedly connected to the connecting frame, and the driving member is connected to the rotating shaft; the gear pair interchangeable part also comprises at least four lifting and rotating assemblies, the two ends of the gear pair assemblies are respectively connected to the lifting and rotating assemblies, and the lifting and rotating assemblies are installed on the side of the connecting frame.

[0008] The present invention lifts the gear pair assembly that needs to be replaced through the lifting and rotating assembly, and after lifting, it is disengaged from the gear at the top end of the stirring rod in the melting furnace. After disengagement, the driving part in the rotating part starts to work, and by driving the rotating shaft to rotate, the overall gear pair interchangeable part can be driven to rotate slowly. After rotating a certain angle, a new set of gear pair assemblies is located above the gear at the top end of the stirring rod, and then the rotation is stopped. The new set of gear pair assemblies are lowered by the lifting and rotating assembly and meshed with the gear at the top end of the stirring shaft to complete the replacement. The replacement process is completed entirely by machinery, and can also be combined with the existing control system to achieve an automated replacement mode by controlling the motor speed, start and stop. The replacement process is extremely short, which brings huge economic benefits to glass production enterprises. It is separated from manual work, effectively protects the personal safety of humans, and at the same time protects the safe production management system of production enterprises. It completely avoids mechanical damage and immeasurable economic damage caused by misoperation of front-line production workers.

[0009] Preferably, the lifting and rotating assembly includes a cylinder and a linear bearing assembly, the cylinder and the linear bearing assembly are both installed on the side of the connecting frame, the telescopic end of the cylinder is connected to the linear bearing assembly, and the gear pair assembly is connected to the linear bearing assembly.

[0010] Preferably, the lifting and rotating assembly further includes a first connecting plate and a second connecting plate, the cylinder is mounted on the first connecting plate, the first connecting plate is fixedly connected to the side of the connecting frame, and the linear bearing assembly is mounted on the second connecting plate.

[0011] The second connecting plate is not connected to the side of the connecting frame or is detachably connected. When the gear needs to rise or fall, the second connecting plate is loosened from the connecting frame. When the gear is engaged with the gear at the top end of the stirring rod, the second connecting plate can be connected to the connecting frame to increase the stability of the device.

[0012] Preferably, the gear pair assembly further comprises a connecting shaft, the connecting shaft is connected to the linear bearing assemblies at both ends, and the connecting shaft is provided with a plurality of gears arranged at intervals and meshing with the top end of the stirring rod in the melting furnace.

[0013] Preferably, it also includes a gear pair driving assembly, the gear pair driving assembly includes a second motor assembly and a clutch, and the second motor assembly is connected to the connecting shaft through a clutch.

[0014] Preferably, the support frame includes a fixed base, a column, an adjusting bolt, and a bearing seat. The bottom of the column is connected to the fixed base via a plurality of adjusting bolts, the bearing seat is connected to the top of the column, and both ends of the rotating shaft are connected to the bearing seat.

[0015] Preferably, the bottom of the column has a flat plate, the flat plate has a plurality of through holes arranged along the axial direction of the column, the bottom of the adjusting bolt is fixed on the fixed base, and the top of the adjusting bolt passes through the through hole and is connected to the nut.

[0016] The height of the support frame can be adjusted by adjusting the bolts, making it more adaptable.

[0017] Preferably, the driving member includes a first motor assembly and a coupling, the first motor assembly is connected to the coupling, and the coupling is connected to the rotating shaft.

[0018] Preferably, the gear is a bevel gear.

[0019] The present invention also provides a method for changing gears of a vertical agitator, which uses the above-mentioned gear changing device of the vertical agitator, including the following steps: lifting the worn gear pair assembly by means of a lifting and rotating assembly, driving the rotating shaft by means of a driving member to drive the gear pair assembly to rotate slowly, rotating until a new set of gear pair assemblies is located above the top gear of the stirring rod in the melting furnace, stopping rotation, lowering the new set of gear pair assemblies by means of the lifting and rotating assembly to engage with the top gear of the stirring rod, and driving the gear pair assembly to perform rotational motion, thereby realizing the rotational motion of the stirring rod.

[0020] The advantages of the present invention are:

[0021] (1) The present invention lifts the gear pair assembly to be replaced, and after lifting, it disengages from the gear at the top of the stirring rod in the melting furnace. After disengagement, the driving part in the rotating part starts to work, and by driving the rotating shaft to rotate, the overall gear pair interchangeable part can be driven to rotate slowly. After rotating a certain angle, a new set of gear pair assemblies is located above the gear at the top of the stirring rod, and then the rotation is stopped. The new set of gear pair assemblies are lowered and meshed with the gear at the top of the stirring shaft to complete the replacement. The replacement process is completed entirely by machinery, and can also be combined with the existing control system to achieve an automated replacement mode by controlling the motor speed, start and stop. The replacement process is extremely short, which brings huge economic benefits to glass production enterprises. It is separated from manual work, effectively ensuring the personal safety of manual workers, and at the same time ensuring the production safety management system of the production enterprise. It completely avoids mechanical damage and inestimable economic damage caused by misoperation of production line workers.

[0022] (2) The second connecting plate is not connected to the side of the connecting frame or is detachably connected. When the gear needs to rise or fall, the second connecting plate is loosened from the connecting frame. When the gear is engaged with the gear at the top of the stirring rod, the second connecting plate can be connected to the connecting frame to increase the stability of the device;

[0023] (3) The height of the support frame can be adjusted by adjusting the bolts, which makes it more adaptable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 2 is a schematic structural diagram of a gear changing device for a vertical agitator according to an embodiment of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the interchangeable part of the gear pair;

[0026] Figure 3 yes Figure 2 An enlarged view of the lifting and rotating assembly at A in the middle;

[0027] Figure 4 It is a structural schematic diagram of the rotating part;

[0028] Figure 5 It is a structural schematic diagram of the support frame;

[0029] Numbers in the figure: 1, gear pair assembly; 11, gear; 12, connecting shaft; 2, connecting frame; 3, supporting frame; 31, fixed base; 32, column; 33, adjusting bolt; 34, bearing seat; 35, nut; 4, rotating shaft; 5, driving member; 51, first motor assembly; 52, coupling; 6, melting furnace; 7, stirring rod; 8, lifting and rotating assembly; 81, cylinder; 82, linear bearing assembly; 83, first connecting plate; 84, second connecting plate; 85, cylinder connecting plate; 9, gear pair driving assembly; 91, second motor assembly; 92, clutch; DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are 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.

[0031] Embodiment 1:

[0032] like Figure 1 , Figure 2 , Figure 3 As shown, a gear changing device for a vertical stirrer includes a gear pair interchangeable part and a rotating part; the gear pair interchangeable part includes at least two groups of gear pair assemblies 1 and a connecting frame 2 that can be lifted and rotated, and both ends of all the gear pair assemblies 1 are connected together through the connecting frame 2, and the gear pair assemblies 1 are arranged in parallel, and the gear pair assemblies 1 include a gear 11 that meshes with the top of the stirring rod 7 in the melting furnace 6; the rotating part includes a supporting frame 3, a rotating shaft 4, and a driving member 5, the supporting frame 3 is located on both sides of the melting furnace 6, the rotating shaft 4 passes through the middle of the connecting frame 2 at both ends and extends out, and the two ends of the extending rotating shaft 4 can be rotatably connected to the supporting frame 3, the rotating shaft 4 is fixedly connected to the connecting frame 2, and the driving member 5 is connected to the rotating shaft 4.

[0033] like Figure 2 As shown, in this embodiment, there are two gear sub-assemblies 1, and the connecting frame 2 is a rectangular plate. The two ends of the two gear sub-assemblies 1 are connected to the two connecting frames, and the gear sub-assembly 1 and the connecting frame 2 form a rectangular frame structure; the gear pair interchangeable part also includes four lifting and rotating assemblies 8, which are used to realize the lifting and rotation of the rotating gear sub-assembly 1, and each gear sub-assembly 1 corresponds to two lifting and rotating assemblies 8, and the two ends of the gear sub-assembly 1 are respectively connected to the lifting and rotating assemblies 8, and the lifting and rotating assemblies 8 are installed on the side of the connecting frame 2.

[0034] like Figure 3 As shown, the lifting and rotating assembly 8 includes a cylinder 81, a linear bearing assembly 82, a first connecting plate 83, a second connecting plate 84, and a cylinder connecting plate 85. The cylinder 81 and the linear bearing assembly 82 are both installed on the side of the connecting frame 2. The telescopic end of the cylinder 81 is connected to the cylinder connecting plate 85, the cylinder connecting plate 85 is connected to the linear bearing assembly 82, and the gear pair assembly 1 is connected to the linear bearing assembly 82. The cylinder 81 is installed vertically, and the linear bearing assembly 82 is installed horizontally. The linear bearing assembly 82 includes a linear bearing and a bearing seat for installing the linear bearing.

[0035] Among them, the cylinder 81 is installed on the first connecting plate 83, the first connecting plate 83 is fixedly connected to the side of the connecting frame 2 and can be connected by a bolt and nut assembly, the linear bearing assembly 82 is installed on the second connecting plate 84, the second connecting plate 84 is not connected to the side of the connecting frame 2 or is detachably connected, when the gear 11 needs to rise or fall, the second connecting plate 84 is loosened from the connecting frame 2, when the gear 11 is engaged with the top gear of the stirring rod 7, the second connecting plate 84 can be connected to the connecting frame 2 to increase the stability of the device.

[0036] The gear pair assembly 1 includes a gear 11 and a connecting shaft 12. The connecting shaft 12 is connected to the linear bearing assemblies 82 at both ends. The connecting shaft 12 is provided with a plurality of gears 11 arranged at intervals and meshing with the top end of the stirring rod 7 in the melting furnace 6. The gear 11 is a vertically mounted bevel gear, and the corresponding gear at the top end of the stirring rod 7 is a horizontally mounted bevel gear.

[0037] like Figure 1 As shown, the gear pair interchangeable part also includes a gear pair driving assembly 9 for driving the gear pair assembly 1 to rotate, and the gear pair driving assembly 9 includes a second motor assembly 91 and a clutch 92, and the second motor assembly 91 is connected to the connecting shaft 12 through the clutch 92; the second motor assembly 91 includes a motor and a reducer, and the clutch 92 adopts an electromagnetic clutch.

[0038] Reference Figure 1 , Figure 2 The method for changing gears using a gear changing device of a vertical agitator specifically comprises:

[0039] (1) If the gear 11 is found to be seriously worn, the second motor assembly 91 is stopped and the clutch 92 is powered off to achieve separation;

[0040] (2) The cylinder 81 in the two lifting and rotating assemblies 8' below is controlled to retract, and the telescopic rod of the cylinder 81 is retracted, driving the cylinder connecting plate 85, the linear bearing assembly 82, the connecting shaft 12, the gear 11 and the clutch 92 to rise, so that the gear 11 is disengaged from the meshing position of the top connecting gear of the stirring rod 7;

[0041] (3) After the gear 11 is disengaged, the rotating part starts to work, driving the entire gear pair interchangeable part to rotate slowly through the rotating shaft 4. After rotating 180° (above the gear at the top of the stirring rod 7), it stops rotating. At this time, the lifting and rotating assembly 8' originally located at the bottom rises to the top, and the lifting and rotating assembly 8" originally located at the top rotates to the bottom;

[0042] (4) The cylinder 81 in the lifting and rotating assembly 8" is used to move the new set of gear pair assemblies 1 downward together, so that the gear 11 is meshed with the gear connected to the top of the stirring rod 7;

[0043] (5) The electromagnetic clutch is energized to engage. After the engagement is completed, the second motor assembly 91 is started to drive the gear pair to rotate, thereby realizing the rotation of the stirring rod 7 and achieving homogenization of the molten glass liquid;

[0044] In this embodiment, the replacement process is completed entirely by machinery, and can also be combined with the existing control system to realize an automated replacement mode by controlling the motor speed, start and stop. The replacement process is extremely short, which brings huge economic benefits to glass production companies. It is free from manual work, effectively protecting the personal safety of humans, and at the same time protecting the production safety management system of the production company. It completely avoids mechanical damage and inestimable economic damage caused by misoperation of front-line production workers.

[0045] Embodiment 2:

[0046] like Figure 4 , Figure 5 As shown, based on the above-mentioned embodiment 1, the support frame 3 includes a fixed base 31, a column 32, an adjusting bolt 33, a bearing seat 34, and a nut 35. The bottom of the column 32 is connected to the fixed base 31 through a plurality of adjusting bolts 33, the bearing seat 34 is connected to the top of the column 32, and both ends of the rotating shaft 4 are connected to the bearing seat 34.

[0047] The fixed base 31 is a flat plate structure, which can be round or square. The bottom of the adjusting bolt 33 is fixed on the fixed base 31. The adjusting bolt 33 is arranged in a circular array or a square array. The bottom of the column 32 has a flat plate, and the flat plate has a plurality of through holes arranged along the axial direction of the column 32. The top of the adjusting bolt 33 passes through the through hole and is connected to the nut 35.

[0048] The distance between the column 32 and the fixed base 31 can be adjusted by screwing the nut 35, and the height of the support frame 3 can be adjusted by adjusting the bolt 33, which has better adaptability.

[0049] Both ends of the rotating shaft 4 are connected to the bearing seats 34 .

[0050] like Figure 4 As shown, the driving member 5 includes a first motor assembly 51 and a coupling 52. The first motor assembly 51 is connected to the coupling 52, and the coupling 52 is connected to the rotating shaft 4. The first motor assembly 51 includes a motor and a reducer. The reducer can control the rotation speed during the rotation process, which is conducive to controlling the rotation position.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A gear changing device for a vertical agitator, characterized in that: It comprises a gear pair interchangeable part and a rotating part; the gear pair interchangeable part comprises at least two groups of gear pair assemblies capable of lifting and rotating, and a connecting frame, both ends of all the gear pair assemblies are connected together through the connecting frame, the gear pair assemblies are arranged in parallel, and the gear pair assemblies comprise gears meshing with the top ends of the stirring rods in the melting furnace; the rotating part comprises a supporting frame, a rotating shaft, and a driving member, the supporting frame is located on both sides of the melting furnace, the rotating shaft passes through the middle of the connecting frames at both ends and extends out, the two ends of the rotating shaft extending out can be rotatably connected to the supporting frame, the rotating shaft is fixedly connected to the connecting frame, and the driving member is connected to the rotating shaft; The gear pair interchangeable part also includes at least four lifting and rotating assemblies, the two ends of the gear pair assembly are respectively connected to the lifting and rotating assemblies, and the lifting and rotating assemblies are installed on the side of the connecting frame; the lifting and rotating assembly includes a cylinder and a linear bearing assembly, the cylinder and the linear bearing assembly are both installed on the side of the connecting frame, the telescopic end of the cylinder is connected to the linear bearing assembly, and the gear pair assembly is connected to the linear bearing assembly; the lifting and rotating assembly also includes a first connecting plate and a second connecting plate, the cylinder is installed on the first connecting plate, the first connecting plate is fixedly connected to the side of the connecting frame, and the linear bearing assembly is installed on the second connecting plate; the gear pair assembly also includes a connecting shaft, the connecting shaft is connected to the linear bearing assemblies at both ends, and the connecting shaft is provided with a plurality of gears arranged at intervals and meshing with the top end of the stirring rod in the melting furnace; the support frame includes a fixed base, a column, an adjusting bolt, and a bearing seat, the bottom of the column is connected to the fixed base through a plurality of adjusting bolts, the bearing seat is connected to the top end of the column, and the two ends of the rotating shaft are connected to the bearing seat; the driving member includes a first motor assembly and a coupling, the first motor assembly is connected to the coupling, and the coupling is connected to the rotating shaft.

2. The gear changing device of a vertical agitator according to claim 1, characterized in that: It also includes a gear pair driving assembly, which includes a second motor assembly and a clutch, and the second motor assembly is connected to the connecting shaft through the clutch.

3. The gear changing device of a vertical agitator according to claim 1, characterized in that: The bottom of the column has a flat plate, which has a plurality of through holes arranged along the axial direction of the column. The bottom of the adjusting bolt is fixed on the fixed base, and the top of the adjusting bolt passes through the through hole and is connected with a nut.

4. The gear changing device of a vertical agitator according to claim 1, characterized in that: The gear is a bevel gear.

5. A method for changing gears of a vertical agitator, characterized in that: The gear changing device of the vertical agitator adopts any one of claims 1-4, comprising the following steps: lifting the worn gear pair assembly by means of a lifting and rotating assembly, driving the rotating shaft by means of a driving member to drive the gear pair assembly to rotate slowly, rotating until a new set of gear pair assemblies is located above the top gear of the agitator rod in the melting furnace, stopping rotation, lowering a new set of gear pair assemblies by means of the lifting and rotating assembly until the new set of gear pair assemblies are engaged with the top gear of the agitator rod, and driving the gear pair assembly to perform rotational motion, thereby realizing the rotational motion of the agitator rod.

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