CN113814273A - Device convenient for replacing heavy roll collar and using method - Google Patents
Device convenient for replacing heavy roll collar and using method Download PDFInfo
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- CN113814273A CN113814273A CN202111121895.0A CN202111121895A CN113814273A CN 113814273 A CN113814273 A CN 113814273A CN 202111121895 A CN202111121895 A CN 202111121895A CN 113814273 A CN113814273 A CN 113814273A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000000725 suspension Substances 0.000 claims description 36
- 230000008569 process Effects 0.000 claims description 19
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 7
- 238000012856 packing Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention provides a device convenient for replacing a heavy roll collar and a using method thereof. Through the design of the guard plate and the handrail, the roll collar can be dragged after being placed into the cylinder, so that the roll collar is prevented from falling out; and through the swing joint of drum and davit, when packing into the roller with new collars, can adjust the installation angle at any time, be convenient for control, device simple structure need not to maintain basically, and is high-efficient practical.
Description
Technical Field
The application relates to the technical field of a roll ring type rolling mill, in particular to a device convenient for heavy roll ring replacement and a using method.
Background
The production line of modern iron and steel enterprises mostly adopts a continuous rolling method, and a roll ring type rolling mill is a common device. The roll ring type rolling mill is divided into models of 250, 212 and 150, and is generally called according to roll diameter of a roll ring, namely the maximum roll diameter is three types of 250mm, 212mm and 150 mm. In the rolling process, the roll collar is generally provided with 2-4 groove surfaces with hole patterns, each groove surface is provided with different groove tonnage (so-called steel passing amount), and after the tonnage is reached, the groove or the roll collar must be replaced. In the roll collar replacement step, the damaged roll collar is generally removed by manual handling and a new roll collar is loaded onto the roll shaft. Because the roll shaft is placed 45 degrees in an inclined way, and the weight of the roll collar with the thickness of 250mm reaches 90 jin, the labor intensity is high in the manual taking-out and installation process, and the waist is easy to damage in the whole dismounting process from the aspect of safety.
Therefore, it is necessary to develop a device for replacing the heavy roll collars, which has a simple structure and is convenient to operate.
Disclosure of Invention
The application aims to provide a device convenient to heavy collars is changed and application method, can cooperate the davit that the overhead traveling crane hoisted and can load and unload the drum of collars through the setting, can change heavy collars high-efficiently fast. Through the design of the guard plate and the handrail, the roll collar can be dragged after being placed into the cylinder, so that the roll collar is prevented from falling out; and through the swing joint of drum and davit, when packing into the roller with new collars, can adjust the installation angle at any time, be convenient for control, device simple structure need not to maintain basically, and is high-efficient practical.
In a first aspect, an embodiment of the present application provides a device for facilitating replacement of a heavy roll collar, including a cylinder, a boom; one side of the cylinder shaft is open, and the other side of the cylinder shaft is provided with a guard plate; the suspension arm is movably connected with the cylinder; the handrail is arranged on one side of the axial opening of the cylinder, and after the roll collar is placed into the cylinder, the handrail can drag the roll collar to prevent the roll collar from falling out.
In the implementation process, the heavy roll collar can be conveyed by the aid of the crown block through cooperation of the suspension arm and the cylinder, and potential safety hazards of manual carrying are avoided. The cylinder is used for packing into the collars, sets up it as axial one side opening, makes the collars business turn over cylinder, and the axial opposite side is equipped with the backplate, and the backplate can block the collars, avoids the collars to run off from the cylinder opposite side, places the collars and drops and injures operating personnel by a crashing object. Because when changing the collars, need embolia the roller with the collars, because the roller is placed 45 to one side, the collars is heavier simultaneously, is difficult for adjusting the position. Therefore, the cylinder is movably connected with the suspension arm, when the roll collar in the cylinder is sleeved into the roll shaft, the cylinder is suspended after the overhead travelling crane lifts the suspension arm, the angle of the cylinder relative to the suspension arm or the roll shaft is easily adjusted, and the cylinder is convenient to control. After the roll collar is installed from one side of the axial opening of the cylinder, in order to avoid the roll collar falling out, the handrail is arranged at the axial opening of the cylinder, and after the roll collar is placed into the cylinder, the handrail can drag the roll collar to avoid falling out, so that the operation safety is improved.
Furthermore, the suspension arm comprises an upper section and a lower section, the upper section of the suspension arm can be lifted through a crown block, the lower section of the suspension arm is divided into a left supporting beam and a right supporting beam, and the left supporting beam and the right supporting beam can partially wrap the circumferential side face of the cylinder.
In the implementation process, the cylinder needs to be lifted by using a crown block, the device playing a connecting role is the lifting arm, the upper section of the lifting arm is lifted by the crown block, and the lower section of the lifting arm is connected with the cylinder loaded with the roll collar. In order to meet the requirements of safety and balance, the cylinder is connected with the cylinder in a partially wrapping mode. The lower section of the suspension arm is arranged into a left supporting beam and a right supporting beam, and the left supporting beam and the right supporting beam can be partially wound on the circumferential side surface of the cylinder. Therefore, the cylinder can be conveniently lifted, the force application is more even, and the cylinder cannot incline towards a certain direction. A balance rod is welded at the proper position of the left and right supporting beams, so that the balance function is achieved, the left and right supporting beams can be pulled, and the deformation is avoided.
Furthermore, bilateral symmetry supporting frames are welded on the circumferential side face of the cylinder, shaft holes are formed in the end portions of the left and right supporting beams at the lower section of the suspension arm, the supporting frames correspond to the shaft holes respectively, and after the supporting frames are inserted into the shaft holes, the cylinder can rotate around the supporting frames.
In the implementation process, in order to conveniently load the roll collar into the roll shaft, the cylinder is movably connected with the lower section of the suspension arm. In order to avoid that the connecting locations affect the collars in the cylinder, the connecting locations are arranged on the circumferential side of the cylinder. The cylinder is movably connected with the lower section of the suspension arm in a mode of matching the supporting frame with the shaft hole. The two support frames are connected with the welding points on the circumferential side surface of the cylinder to form a chord of a circle formed by the section of the cylinder. The ends of the left and right supporting beams at the lower section of the suspension arm are provided with shaft holes, the supporting frames correspond to the shaft holes respectively, after the supporting frames are inserted into the shaft holes, the cylinder can rotate around the supporting frames, and the supporting frames cannot fall out of the shaft holes when the cylinder rotates and moves due to the fact that the left and right supporting beams can partially wrap the circumferential side face of the cylinder. At the moment, the balance rod between the left and right supporting beams can pull the left and right supporting beams, so that the relative position change of the left and right supporting beams is avoided.
Further, the guard plate is welded to the other side of the cylinder in the axial direction, and partially shields the cylinder in the axial direction.
Furthermore, the guard plate is crescent, and the outer arc of the guard plate is welded with the inner circle of the other axial side of the cylinder in an inscribed mode.
In the implementation process, the guard plate is welded on the other side of the axial direction of the cylinder, and can partially shield the axial direction of the cylinder, so that the roller ring is prevented from falling down towards the operation direction of personnel during operation. The shield does not suggest that the barrel axis be completely shielded, which is detrimental to the operator's view of the position of the collar in the barrel. Suitably, the shield is such that the roller ring does not fall out of the cylinder. Preferably, the guard plate presents a crescent shape, and the outer arc of the guard plate is welded with the circumference of the cylinder in an inscribed mode.
Furthermore, a circular hole is welded on the circumferential side surface of the cylinder, and the handrail penetrates through the circular hole and then is rotatably and movably connected with the circular hole;
preferably, the number of the round holes is two, and the round holes are symmetrical left and right;
preferably, the armrests correspond to the circular holes, respectively.
In the implementation process, after the roller ring is put into the cylinder from the axial opening side, the handrail is used for blocking the roller ring and avoiding falling out of the cylinder. The handrail is movably connected with the cylinder, the handrail cannot block the roll collar from entering and exiting in the process of placing the roll collar into the cylinder, and the handrail can stably block the roll collar in the cylinder after the roll collar is arranged in the cylinder. In order to prevent the connecting position of the handrail and the cylinder from obstructing the inlet and the outlet of the roller ring, the connecting position is arranged on the circumferential side surface of the cylinder. The circular hole is selected to be movably connected with the handrail, and the cylinder is welded on the circumferential side surface of the cylinder.
Generally, one armrest will solve the problem. However, considering the possible occurrence of the trouble of the single handrail such as jamming, it is appropriate to provide two handrails corresponding to the circular holes on the outer circumference of the cylinder, respectively, so that the handrails can rotate freely in the circular holes.
Furthermore, the handrail is L-shaped, a baffle plate is arranged at one end penetrating through the round hole, and when the handrail is rotated, the baffle plate can be intersected with or separated from a circle formed by the cylinder.
In the implementation process, the handrail is L-shaped, one part of the handrail penetrates through the round hole, and one end penetrating through the round hole is provided with the baffle, when the handrail is rotated, the baffle can be intersected with or separated from a circle formed by the cylinder, so that the baffle does not interfere when the roller ring enters the cylinder, and after the roller ring enters the cylinder, the handrail can be rotated to enable the baffle of the handrail to block a route of the roller ring entering and exiting the cylinder.
The handrail is designed into L shape, can avoid the handrail to run from the round hole and take off. It should be noted that the armrest is also provided with a locking device to prevent the armrest from rotating improperly.
Further, the inner diameter of the cylinder is 1-2mm larger than the outer diameter of the roll collar.
In a second aspect, the present application provides a method for using an apparatus for facilitating replacement of a heavy roll collar, the method using the apparatus described above, including the following steps:
step S1: after the roll collar replacing process is prepared, emptying the position;
step S2: sequentially loosening the protective cap and the locking nut, and loosening the taper sleeve and the roller ring by using a roller-changing hydraulic wrench;
step S3: after the taper sleeve is loosened, conveying the damaged roll collar to a proper area;
step S4: hoisting a suspension arm by a crown block, placing a new roll collar in a cylinder of the device according to claim 8, rotating a handrail to drag the roll collar, adjusting the angle between the cylinder and the suspension arm, and loading the new roll collar on a roll shaft;
step S5: installing a taper sleeve, tightening by using a hydraulic wrench, and then installing a locking nut and a protective cap.
Through the cooperation of davit and drum, under the guarantee of backplate and handrail, can very easily utilize the overhead traveling crane to hoist the collars, after adjusting the angle, pack into on the roller.
In a third aspect, embodiments of the present application provide a use according to the above method of use in heavy duty roll collar replacement for a rolling mill.
Has the advantages that:
in the implementation process, the invention provides a device convenient for replacing a heavy roll collar and a using method thereof. Through the design of the guard plate and the handrail, the roll collar can be dragged after being placed into the cylinder, so that the roll collar is prevented from falling out; and through the swing joint of drum and davit, when packing into the roller with new collars, can adjust the installation angle at any time, be convenient for control, device simple structure need not to maintain basically, and is high-efficient practical.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a front view of a roll collar exchanging apparatus according to an embodiment of the present application.
Fig. 2 is a side view of a roll collar changing apparatus according to an embodiment of the present application.
Fig. 3 is a diagram of an object of a roll collar replacing apparatus according to an embodiment of the present application.
Fig. 4 is a diagram of an object of a roll collar replacing apparatus according to an embodiment of the present application.
Wherein each reference numeral is, 1-cylinder; 2-guard board; 3-a handrail; 4-a boom; 5-supporting the beam; 6-a support frame; 7-baffle.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when in use, and are used only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Examples
Referring to fig. 1-2, there is provided an apparatus for facilitating replacement of a heavy roll collar, comprising a cylinder 1, a boom 4; one axial side of the cylinder 1 is provided with an opening, and the other axial side of the cylinder 1 is provided with a protective plate 2; the suspension arm 4 is movably connected with the cylinder 1; the handrail 3 is arranged on one side of the axial opening of the cylinder, and after the roll collar is placed into the cylinder 1, the handrail can drag the roll collar to prevent the roll collar from falling out. The suspension arm 4 comprises an upper section and a lower section, the upper section of the suspension arm can be lifted by a crown block, the lower section of the suspension arm is divided into a left supporting beam and a right supporting beam 5, and the left supporting beam and the right supporting beam can partially wrap the circumferential side face of the cylinder. The cylinder is characterized in that bilaterally symmetrical support frames 6 are welded on the circumferential side face of the cylinder, shaft holes are formed in the end portions of the left and right support beams at the lower section of the suspension arm, the support frames correspond to the shaft holes respectively, and the cylinder can rotate around the support frames 6 after the support frames 6 are inserted into the shaft holes.
The guard plate 2 is welded on the other axial side of the cylinder 1 to partially shield the axial direction of the cylinder. The guard plate 2 is crescent, and the outer arc of the guard plate 2 is welded with the circumference of the other axial side of the cylinder in an inscribed mode.
Circular holes are welded on the circumferential side surface of the cylinder, and the handrail 3 penetrates through the circular holes and then is rotatably and movably connected with the circular holes; the number of the round holes is two, and the round holes are symmetrical left and right; the armrests 3 correspond to the circular holes respectively.
The handrail 3 is L-shaped, one end of the handrail, which penetrates through the round hole, is provided with a baffle 7, and when the handrail 3 is rotated, the baffle 7 can be intersected with or separated from a circle formed by the cylinder.
The inner diameter of the cylinder 1 is 1-2mm larger than the outer diameter of the roll collar.
Referring to fig. 3-4, a schematic diagram of a roll collar replacing device according to an embodiment of the present application is shown.
In the implementation process, the heavy roll collar can be conveyed by the aid of the crown block through cooperation of the suspension arm and the cylinder, and potential safety hazards of manual carrying are avoided. The cylinder is used for packing into the collars, sets up it as axial one side opening, makes the collars business turn over cylinder, and the axial opposite side is equipped with the backplate, and the backplate can block the collars, avoids the collars to run off from the cylinder opposite side, places the collars and drops and injures operating personnel by a crashing object. Because when changing the collars, need embolia the roller with the collars, because the roller is placed 45 to one side, the collars is heavier simultaneously, is difficult for adjusting the position. Therefore, the cylinder is movably connected with the suspension arm, when the roll collar in the cylinder is sleeved into the roll shaft, the cylinder is suspended after the overhead travelling crane lifts the suspension arm, the angle of the cylinder relative to the suspension arm or the roll shaft is easily adjusted, and the cylinder is convenient to control. After the roll collar is installed from one side of the axial opening of the cylinder, in order to avoid the roll collar falling out, the handrail is arranged at the axial opening of the cylinder, and after the roll collar is placed into the cylinder, the handrail can drag the roll collar to avoid falling out, so that the operation safety is improved.
In the implementation process, the cylinder needs to be lifted by using a crown block, the device playing a connecting role is the lifting arm, the upper section of the lifting arm is lifted by the crown block, and the lower section of the lifting arm is connected with the cylinder loaded with the roll collar. In order to meet the requirements of safety and balance, the cylinder is connected with the cylinder in a partially wrapping mode. The lower section of the suspension arm is arranged into a left supporting beam and a right supporting beam, and the left supporting beam and the right supporting beam can be partially wound on the circumferential side surface of the cylinder. Therefore, the cylinder can be conveniently lifted, the force application is more even, and the cylinder cannot incline towards a certain direction. A balance rod is welded at the proper position of the left and right supporting beams, so that the balance function is achieved, the left and right supporting beams can be pulled, and the deformation is avoided.
In the implementation process, in order to conveniently load the roll collar into the roll shaft, the cylinder is movably connected with the lower section of the suspension arm. In order to avoid that the connecting locations affect the collars in the cylinder, the connecting locations are arranged on the circumferential side of the cylinder. The cylinder is movably connected with the lower section of the suspension arm in a mode of matching the supporting frame with the shaft hole. The two support frames are connected with the welding points on the circumferential side surface of the cylinder to form a chord of a circle formed by the section of the cylinder. The ends of the left and right supporting beams at the lower section of the suspension arm are provided with shaft holes, the supporting frames correspond to the shaft holes respectively, after the supporting frames are inserted into the shaft holes, the cylinder can rotate around the supporting frames, and the supporting frames cannot fall out of the shaft holes when the cylinder rotates and moves due to the fact that the left and right supporting beams can partially wrap the circumferential side face of the cylinder. At the moment, the balance rod between the left and right supporting beams can pull the left and right supporting beams, so that the relative position change of the left and right supporting beams is avoided.
In the implementation process, the guard plate is welded on the other side of the axial direction of the cylinder, and can partially shield the axial direction of the cylinder, so that the roller ring is prevented from falling down towards the operation direction of personnel during operation. The shield does not suggest that the barrel axis be completely shielded, which is detrimental to the operator's view of the position of the collar in the barrel. Suitably, the shield is such that the roller ring does not fall out of the cylinder. Preferably, the guard plate presents a crescent shape, and the outer arc of the guard plate is welded with the circumference of the cylinder in an inscribed mode.
In the implementation process, after the roller ring is put into the cylinder from the axial opening side, the handrail is used for blocking the roller ring and avoiding falling out of the cylinder. The handrail is movably connected with the cylinder, the handrail cannot block the roll collar from entering and exiting in the process of placing the roll collar into the cylinder, and the handrail can stably block the roll collar in the cylinder after the roll collar is arranged in the cylinder. In order to prevent the connecting position of the handrail and the cylinder from obstructing the inlet and the outlet of the roller ring, the connecting position is arranged on the circumferential side surface of the cylinder. The circular hole is selected to be movably connected with the handrail, and the cylinder is welded on the circumferential side surface of the cylinder.
Generally, one armrest will solve the problem. However, considering the possible occurrence of the trouble of the single handrail such as jamming, it is appropriate to provide two handrails corresponding to the circular holes on the outer circumference of the cylinder, respectively, so that the handrails can rotate freely in the circular holes.
In the implementation process, the handrail is L-shaped, one part of the handrail penetrates through the round hole, and one end penetrating through the round hole is provided with the baffle, when the handrail is rotated, the baffle can be intersected with or separated from a circle formed by the cylinder, so that the baffle does not interfere when the roller ring enters the cylinder, and after the roller ring enters the cylinder, the handrail can be rotated to enable the baffle of the handrail to block a route of the roller ring entering and exiting the cylinder.
In the above implementation, the baffle may be a disk or an irregular geometric shape as long as it does not interfere with the movement of the roller ring into and out of the cylinder when rotated into position. When the baffle is a disk, the connecting point of the baffle and the handrail can not be arranged at the center of the disk, namely, when the handrail is rotated, the baffle rotates eccentrically.
The handrail is designed into L shape, can avoid the handrail to run from the round hole and take off. It should be noted that the armrest is also provided with a locking device to prevent the armrest from rotating improperly.
The embodiment of the application also provides a using method of the device for facilitating the replacement of the heavy roll collar, the method adopts the device, and the method comprises the following steps:
step S1: after the roll collar replacing process is prepared, emptying the position;
step S2: sequentially loosening the protective cap and the locking nut, and loosening the taper sleeve and the roller ring by using a roller-changing hydraulic wrench;
step S3: after the taper sleeve is loosened, conveying the damaged roll collar to a proper area;
step S4: hoisting a suspension arm by a crown block, placing a new roll collar in a cylinder of the device according to claim 8, rotating a handrail to drag the roll collar, adjusting the angle between the cylinder and the suspension arm, and loading the new roll collar on a roll shaft;
step S5: installing a taper sleeve, tightening by using a hydraulic wrench, and then installing a locking nut and a protective cap.
Through the cooperation of davit and drum, under the guarantee of backplate and handrail, can very easily utilize the overhead traveling crane to hoist the collars, after adjusting the angle, pack into on the roller.
The embodiment of the application also provides application of the method for replacing the heavy roll collar of the rolling mill.
According to the embodiment of the invention, the heavy roll collar can be replaced quickly and efficiently by arranging the suspension arm which can be matched with the crane for hoisting and the cylinder which can be used for loading and unloading the roll collar. Through the design of the guard plate and the handrail, the roll collar can be dragged after being placed into the cylinder, so that the roll collar is prevented from falling out; and through the swing joint of drum and davit, when packing into the roller with new collars, can adjust the installation angle at any time, be convenient for control, device simple structure need not to maintain basically, and is high-efficient practical.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A device for facilitating replacement of a heavy roll collar comprises a cylinder and a suspension arm;
one side of the cylinder shaft is open, and the other side of the cylinder shaft is provided with a guard plate;
the suspension arm is movably connected with the cylinder;
the roller ring rolling machine is characterized in that a handrail is arranged on one side of an axial opening of the cylinder, and the handrail can drag the roller ring after the roller ring is placed into the cylinder, so that the roller ring is prevented from falling out.
2. The apparatus of claim 1, wherein the boom arm comprises an upper section and a lower section, the upper section of the boom arm being capable of being lifted by a crown block, the lower section of the boom arm being divided into left and right corbels capable of partially wrapping around circumferential sides of the cylinder.
3. The device as claimed in claim 2, wherein the cylinder has bilaterally symmetrical support frames welded to circumferential sides thereof, and the lower left and right support beams of the suspension arm have shaft holes at ends thereof, the support frames corresponding to the shaft holes, respectively, and the cylinder is rotatably movable about the support frames after the support frames are inserted into the shaft holes.
4. The apparatus of claim 3, wherein the shield is welded to the other axial side of the cylinder to partially shield the cylinder from axial direction.
5. The apparatus of claim 4 wherein the shield is crescent shaped, the outer arc of the shield being tangentially welded to the circumference of the other axial side of the cylinder.
6. The device as claimed in claim 5, wherein a circular hole is welded on the circumferential side surface of the cylinder, and the handrail passes through the circular hole and then is rotatably and movably connected with the circular hole;
preferably, the number of the round holes is two, and the round holes are symmetrical left and right;
preferably, the armrests correspond to the circular holes, respectively.
7. A device as claimed in claim 6, wherein the handrail is L-shaped and a baffle is provided at one end across the circular aperture, the baffle being adapted to intersect or diverge from the circle formed by the cylinder when the handrail is rotated.
8. The apparatus of claim 7, wherein the cylinder inner diameter is 1-2mm larger than the roll collar outer diameter.
9. A method of using the apparatus for facilitating heavy duty roll collar replacement using the apparatus of claim 8, comprising the steps of:
step S1: after the roll collar replacing process is prepared, emptying the position;
step S2: sequentially loosening the protective cap and the locking nut, and loosening the taper sleeve and the roller ring by using a roller-changing hydraulic wrench;
step S3: after the taper sleeve is loosened, conveying the damaged roll collar to a proper area;
step S4: hoisting a suspension arm by a crown block, placing a new roll collar in a cylinder of the device according to claim 8, rotating a handrail to drag the roll collar, adjusting the angle between the cylinder and the suspension arm, and loading the new roll collar on a roll shaft;
step S5: installing a taper sleeve, tightening by using a hydraulic wrench, and then installing a locking nut and a protective cap.
10. Use of the method according to claim 9 for heavy duty roll collar replacement in rolling mills.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111121895.0A CN113814273B (en) | 2021-09-24 | 2021-09-24 | Device convenient for replacing heavy-duty roll collar and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111121895.0A CN113814273B (en) | 2021-09-24 | 2021-09-24 | Device convenient for replacing heavy-duty roll collar and application method |
Publications (2)
| Publication Number | Publication Date |
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| CN113814273B CN113814273B (en) | 2024-04-02 |
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| CN202111121895.0A Active CN113814273B (en) | 2021-09-24 | 2021-09-24 | Device convenient for replacing heavy-duty roll collar and application method |
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| CN2284229Y (en) * | 1996-11-10 | 1998-06-17 | 唐山钢铁集团有限责任公司 | Rotary roller ring lifting dismounting and mounting implement |
| CN102626716A (en) * | 2012-04-24 | 2012-08-08 | 青岛钢铁控股集团有限责任公司 | Roll collar assembling and disassembling clamp |
| DE102013201779A1 (en) * | 2013-02-04 | 2014-08-07 | Dango & Dienenthal Maschinenbau Gmbh | Roll rings handling device for removal of roll rings from ring rolling mill, has supporting frame arranged in guide support arm and sequence support arm, where sequence support arm is horizontally movable with respect to guide support arm |
| CN104386578A (en) * | 2014-11-11 | 2015-03-04 | 成都三强轧辊股份有限公司 | High-temperature ring part lifting appliance |
| CN105964701A (en) * | 2016-06-17 | 2016-09-28 | 江苏永钢集团有限公司 | Quick mounting tool of tungsten carbide roll ring |
| CN110510514A (en) * | 2019-08-29 | 2019-11-29 | 哈尔滨电气动力装备有限公司 | Stator support tube assembly anti-deformation suspender |
| CN209957223U (en) * | 2019-05-16 | 2020-01-17 | 新疆八一钢铁股份有限公司 | Safe lifting appliance for disassembling roll collar of section straightening machine |
| CN112079038A (en) * | 2020-09-23 | 2020-12-15 | 江苏永钢集团有限公司 | Handling device for quick roll change |
| CN212532013U (en) * | 2020-03-26 | 2021-02-12 | 山东莱钢永锋钢铁有限公司 | Roller ring lifting appliance |
| CN112429633A (en) * | 2020-09-26 | 2021-03-02 | 广东韶钢松山股份有限公司 | Roller ring dismounting clamp and crown block |
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2021
- 2021-09-24 CN CN202111121895.0A patent/CN113814273B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2284229Y (en) * | 1996-11-10 | 1998-06-17 | 唐山钢铁集团有限责任公司 | Rotary roller ring lifting dismounting and mounting implement |
| CN102626716A (en) * | 2012-04-24 | 2012-08-08 | 青岛钢铁控股集团有限责任公司 | Roll collar assembling and disassembling clamp |
| DE102013201779A1 (en) * | 2013-02-04 | 2014-08-07 | Dango & Dienenthal Maschinenbau Gmbh | Roll rings handling device for removal of roll rings from ring rolling mill, has supporting frame arranged in guide support arm and sequence support arm, where sequence support arm is horizontally movable with respect to guide support arm |
| CN104386578A (en) * | 2014-11-11 | 2015-03-04 | 成都三强轧辊股份有限公司 | High-temperature ring part lifting appliance |
| CN105964701A (en) * | 2016-06-17 | 2016-09-28 | 江苏永钢集团有限公司 | Quick mounting tool of tungsten carbide roll ring |
| CN209957223U (en) * | 2019-05-16 | 2020-01-17 | 新疆八一钢铁股份有限公司 | Safe lifting appliance for disassembling roll collar of section straightening machine |
| CN110510514A (en) * | 2019-08-29 | 2019-11-29 | 哈尔滨电气动力装备有限公司 | Stator support tube assembly anti-deformation suspender |
| CN212532013U (en) * | 2020-03-26 | 2021-02-12 | 山东莱钢永锋钢铁有限公司 | Roller ring lifting appliance |
| CN112079038A (en) * | 2020-09-23 | 2020-12-15 | 江苏永钢集团有限公司 | Handling device for quick roll change |
| CN112429633A (en) * | 2020-09-26 | 2021-03-02 | 广东韶钢松山股份有限公司 | Roller ring dismounting clamp and crown block |
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|---|---|
| CN113814273B (en) | 2024-04-02 |
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