CN107190223A - A kind of adjustable drag link for strip galvanizing by dipping unit - Google Patents
A kind of adjustable drag link for strip galvanizing by dipping unit Download PDFInfo
- Publication number
- CN107190223A CN107190223A CN201710352930.7A CN201710352930A CN107190223A CN 107190223 A CN107190223 A CN 107190223A CN 201710352930 A CN201710352930 A CN 201710352930A CN 107190223 A CN107190223 A CN 107190223A
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- Prior art keywords
- rod
- output shaft
- roller arm
- power output
- tie rod
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- 238000005246 galvanizing Methods 0.000 title claims abstract description 37
- 238000007598 dipping method Methods 0.000 title description 2
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 239000007787 solid Substances 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 19
- 230000009347 mechanical transmission Effects 0.000 claims description 10
- 230000000087 stabilizing effect Effects 0.000 description 9
- 239000003381 stabilizer Substances 0.000 description 7
- 238000005452 bending Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/003—Apparatus
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
Abstract
The invention discloses a kind of adjustable drag link for strip hot-dip galvanizing unit, mainly include first end joint design, the second termination header structure and body part, the drag link is fixed in the roller arm of side by first end joint design, it is fixed on by the second termination header structure in opposite side roller arm, the body part includes the body of rod, housing, gear unit and pilot sleeve；Body of rod main body is solid steel pole, and its left end is connected with pilot sleeve and can smoothly moved in pilot sleeve, and right-hand member is connected with roller arm；Housing is mainly made up of, and be fixed in roller arm casing and case lid；Gear unit includes motor, mechanical drive train, output shaft, spigot nut etc., motor is arranged on housing, and the power of motor is delivered to output shaft by mechanical drive train so that output shaft rotation, spigot nut is fixedly connected on the body of rod, and coordinates with output shaft worm drive；Pilot sleeve is fixed on housing.The adjustable drag link of the present invention avoids drag link elongation and causes roller arm to bend.
Description
Technical Field
The invention relates to the technical field of hot-dip galvanizing of strip steel, in particular to an adjustable tie rod for a hot-dip galvanizing unit of the strip steel, which is arranged between roller arms and can enhance the rigidity of the roller arms of the hot-dip galvanizing unit of the strip steel.
Background
Hot dip galvanizing is the most popular steel surface treatment method with the optimal cost performance ratio in the world at present, and the product is widely applied to industries such as high-voltage power transmission, traffic, communication and the like due to the excellent corrosion resistance and corrosion resistance, especially the rapid development of the automobile industry, and provides higher requirements for the surface quality of a hot dip galvanized plate. In the continuous hot-dip galvanizing production process, a strip steel hot-dip galvanizing unit is one of key components influencing the production efficiency and quality of plates. In a strip steel hot-dip galvanizing unit, the phenomenon that three-roller six arms in a zinc pot and strip steel shake violently is very frequent, so that the surface quality of a plate is influenced, the production efficiency of a product is limited, and huge potential safety hazards exist in serious cases. In order to inhibit the shaking of the rollers, the roller arms and the strip steel, a common tie rod is welded between the roller arms on two sides, joints at two ends of the tie rod are welded, and a body part of the tie rod is a solid steel rod. The schematic diagrams of the hot-dip galvanizing unit for strip steel and the conventional tie rod are shown in fig. 1 and 2.
However, the working environment of the strip steel hot-dip galvanizing unit is extremely severe, the tie rod arranged between the roll arms at two sides needs to bear the high temperature of more than 400 ℃, and under the high-temperature environment, the common tie rod obviously extends due to the characteristics of expansion caused by heat and contraction caused by cold, so that the roll arms are outwards propped open by the tie rod, and the roll arms are bent. The bending of the roller arm enables the shaft head of the roller bearing and the bearing bush to be not coaxial, so that the abrasion of the bearing is aggravated, the service life of the bearing is shortened, and the roller can shake.
Disclosure of Invention
Aiming at the defects of a common transverse pull rod adopted on the existing strip steel hot-dip galvanizing unit, the invention designs the transverse pull rod with adjustable length, which can enhance the rigidity of a roller arm of the strip steel hot-dip galvanizing unit and solve the problems of the existing strip steel hot-dip galvanizing unit, such as the extension of the transverse pull rod, the bending of the roller arm, the non-coaxial shaft of a shaft sleeve and a bearing bush, and the like caused by thermal expansion and cold contraction on the premise of enhancing the rigidity of the roller arm of the strip steel hot-dip galvanizing unit. In addition, the invention preferably provides the adjustable tie rod, manual operation is not needed, and the use safety is ensured.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an adjustable tie rod for a hot dip strip galvanizing line, comprising:
the roller arm structure comprises a body part, a first end joint structure and a second end joint structure, wherein the body part is fixedly connected to the roller arm on one side through the first end joint structure and fixedly connected to the roller arm on the other side through the second end joint structure; wherein,
the body part mainly comprises a rod body, a shell, a transmission unit and a guide sleeve, wherein the shell is fixedly connected to the roller arm on one side through the first end joint structure; the transmission unit is arranged in the shell, the guide sleeve is fixedly connected to the shell, the rod body penetrates through the guide sleeve and forms hole-shaft clearance fit with the guide sleeve, and the rod body can move smoothly in the through hole of the guide sleeve; wherein,
the rod body is provided with two ends, the first end of the rod body is provided with a round blind hole which is coaxial with the rod body, the transmission unit is provided with a power output shaft, and the power output shaft penetrates through the guide sleeve; the power output shaft is characterized in that a threaded section is arranged at one end of the power output shaft, external threads are arranged on the threaded section, a guide nut is sleeved outside at least one section of the threaded section, the threaded section and the guide nut form spiral transmission fit, and the guide nut is fixedly connected to the first end of the rod body.
The adjustable tie rod realizes the function of adjusting the tie rod, so that when the tie rod is stretched due to expansion caused by heat and contraction caused by cold, the tie rod can be maintained at a proper length through adjustment.
The center of the guide sleeve is provided with the circular through hole which is in clearance fit with the rod body through a hole shaft, and the rod body can move smoothly in the circular through hole of the guide sleeve, so that the flexibility of the rod body is ensured, and the length adjustment of the transverse pull rod is realized.
In an embodiment of the present invention, the transmission unit includes a driving device, a mechanical transmission chain, a power output shaft, and the guide nut, the driving device is mounted above the housing, and the mechanical transmission chain is disposed in the housing and transmits power of the driving device to the power output shaft, so that the power output shaft rotates.
In a preferred embodiment of the present invention, the body of the rod body is a solid steel rod, and the first end of the rod body is connected to the guide sleeve through the following structure: the internal surface of guide sleeve is equipped with first direction keyway, the surface of the first end of the body of rod is equipped with second direction keyway fixed at least one direction parallel key that is provided with in the second direction keyway, the direction parallel key is inlayed between two keyways. The beneficial effect of this structure is: the rod body is ensured not to rotate along with the rotation of the power output shaft, but only moves smoothly in the through hole of the guide sleeve.
In an embodiment of the invention, the mechanical transmission chain is a worm gear structure, the worm gear structure is arranged in the shell, the worm is connected to the output end of the driving device, the worm gear structure comprises a worm gear and the power output shaft, and the worm gear structure has a simple transmission mode and is convenient to mount and dismount; the power output shaft comprises a worm wheel matching section, a bearing supporting section and the thread section, the worm wheel is fixedly connected with the worm wheel matching section of the power output shaft through a central through hole formed in the worm wheel, the power output shaft is supported on the shell through a pair of bearings arranged on two sides of the worm wheel, and meanwhile, the thread section and the guide nut form spiral transmission matching and the guide nut is fixed at one end of the rod body, so that the power output shaft not only transmits the power of the motor, but also can be used as a part of the rod body of the cross pull rod to realize the telescopic function, and further the rigidity of a roller arm of the hot dipping galvanizing unit is improved.
In an embodiment of the present invention, the second end of the rod body is fixedly connected to the other side roller arm by the following second end joint structure: the right-hand member of the body of rod is equipped with the external screw thread section, the external screw thread section passes a through-hole on the opposite side roller arm, and two nuts distribute in the both sides of opposite side roller arm to cooperation gasket will the second end of the body of rod is screwed on the opposite side roller arm.
In a preferred embodiment of the invention, a sensor is mounted on the rod body, the sensor feeds back temperature information or deformation information of the transverse pull rod to a controller in real time, and the controller calculates the number of turns of the driving device which needs to rotate according to the temperature difference or the deformation information, controls the driving device to work and adjusts the length of the transverse pull rod. The technical characteristics have the beneficial effects that: the manual operation is avoided, the working action of the whole mechanism is coherent, the operation is safer and more reliable, and the hot-dip galvanizing process of the strip steel is more intelligent. The sensor may alternatively be a temperature sensor or a pressure sensor, both of which are mounted on the rod body, and the sensed temperature or pressure is the temperature or pressure on the rod body.
In an embodiment, the housing of the present invention is mainly composed of a box body and a box cover, and the first end joint structure of the present invention is a flange structure or a welded structure.
The invention has the beneficial effects that the surface of one side of the shell is provided with the convex circular ring, the end surface of the circular ring is provided with four threaded holes for fixing the guide sleeve, and the structure has the following beneficial effects: the connecting structure is compact, the space utilization rate is high, and the shell is convenient to mount and dismount.
Compared with the prior art, the invention has the following beneficial effects:
the length of the tie rod is adjustable, the problems of roller arm bending, shaft sleeve and bearing bush non-coaxial and the like caused by length change due to expansion with heat and contraction with cold of a common tie rod in the prior art are solved, the abrasion of a bearing is reduced, and the service life of the bearing is prolonged;
secondly, the length of the cross pull rod is preferably automatically adjusted, so that manual operation is avoided, the working action of the whole mechanism is continuous, the operation is safer and more reliable, and meanwhile, the hot-dip galvanizing process of the strip steel is more intelligent.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
FIG. 1 is a front view of a hot-dip galvanizing unit for strip steel with a common tie rod installed between roll arms in the prior art;
FIG. 2 is a left side view of a structure of a strip steel hot-dip galvanizing unit with a common tie rod installed between roll arms in the prior art;
FIG. 3 is a front view of the hot-dip galvanizing unit for strip steel equipped with adjustable tie rods according to the embodiment of the present invention;
FIG. 4 is a front view of an adjustable track rod in accordance with an embodiment of the present invention;
FIG. 5 is an exploded view of an adjustable track rod in accordance with an embodiment of the present invention;
FIG. 6 is an exploded view of the housing and guide sleeve of an embodiment of the present invention;
FIG. 7 is a cross-sectional view of the connection between the guide sleeve and the rod body according to the embodiment of the present invention; FIG. 7(a) is an enlarged view of portion A of FIG. 7 showing a detailed cross-sectional view of the circumferentially fixed key slot of the shank;
FIG. 8 is a front view of the output shaft of the transmission unit of the embodiment of the present invention;
FIG. 9 is a control block diagram of an embodiment of the present invention for automatically adjusting the track rod;
in the figure: 1 a-a common tie rod; 1-adjustable tie rod, 2-beam, 3-zinc pot, 4-first sinking roller arm, 5-second sinking roller arm, 6-first stabilizing roller arm, 7-second stabilizing roller arm, 8-stabilizing roller, 9-sinking roller, 10-strip steel, 11-body part, 12-first end joint structure, 13-second end joint structure, 21-rod body, 22-guiding flat key, 23-temperature sensor, 24-nut, 31-shell, 32-box body, 33-box cover, 34-bearing, 35-bearing end cover, 36-motor base, 41-transmission unit, 42-motor, 43-mechanical transmission chain, 44-power output shaft, 45-guiding nut, 431-worm, 432-worm wheel, 441-worm wheel mating section, 442-bearing support section, 443-threaded section, 51-guide sleeve.
Detailed Description
The invention provides an adjustable tie rod for a strip steel hot-dip galvanizing unit. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step, based on the embodiments of the invention described below, are within the scope of protection of the invention.
In the following embodiment of the invention, the mounting position of the adjustable transverse pull rod is arranged between two roller arms of the stabilizing roller, a worm gear mechanism is selected as a mechanical transmission chain, a temperature sensor is adopted as the sensor, and a motor is adopted as a driving device; however, it is obvious that in other embodiments of the invention, the tie rods can also be installed between the sink roll and the leveling roll arms, and the choice of mechanical transmission chains, drive devices and sensors is also diversified.
Example 1
Referring to fig. 3 and 4, the present embodiment provides a tie rod 1 for enhancing the rigidity of a roll arm of a hot-dip strip galvanizing unit, wherein the tie rod 1 includes a first end joint structure 12, a second end joint structure 13 and a body part 11. This tie rod 1 sets up between first stabilizer roller arm 6 and second stabilizer roller arm 7, body portion 11 passes through first end joint structure 12 fixed connection is on first stabilizer roller arm 6, and passes through second end joint structure 13 fixed connection is on second stabilizer roller arm 7.
Fig. 3 shows the use environment of the tie rod of the embodiment, which comprises a cross beam 2, a zinc pot 3, a sink roll 9, a first sink roll arm 4, a second sink roll arm 5 and a stabilizing roll 8.
Referring to fig. 5, the body portion 11 of the track rod 1 mainly includes a rod body 21, a housing 31, a transmission unit 41 and a guide sleeve 51; wherein,
the body of the rod body 21 is a solid steel rod having two ends, wherein one end located on the left side in fig. 5 is defined as a first end, a circular blind hole is formed at the center of the first end, the depth of the blind hole is, for example, 60 mm, and the transmission unit 41 includes a guide nut 45, and the guide nut 45 is embedded and fixed in the circular blind hole; the end of the rod body 21 shown as the right end in fig. 5 is defined as a second end, the second end is provided with a section of external thread with a sufficient length, the section of external thread passes through a through hole on the second roller stabilizing arm 7 and is screwed on the second roller stabilizing arm 7 by two nuts 24, the two nuts 24 are distributed on two sides of the second roller stabilizing arm 7 and are matched with gaskets to screw and fix the right end of the rod body 21 on the second roller stabilizing arm 7;
the housing 31 is formed of a case 32 and a case cover 33, the case cover 33 having a viewing hole, the case 32 being fixed to the first stabilizer roller arm 6 by bolts, and alternatively, a welded fixing structure may be used; referring to fig. 5 and 6, the right side of the housing 31 has a protruding ring, the end surface of the ring is provided with four threaded holes, and the guide sleeve 51 is fixed on the end surface of the protruding ring on the right side of the housing 31 by four bolts; referring to fig. 5, a motor seat 36 is further fixedly disposed on the upper portion of the housing 31, and the fixing manner may be, for example, welding;
the transmission unit 41 is composed of a motor 42, a mechanical transmission chain 43, a power output shaft 44, a guide nut 45 and the like, wherein the motor 42 is fixed on the motor base 36 of the shell 31, and the mechanical transmission chain 43 is placed inside the shell 31; the mechanical transmission chain 43 is a worm gear mechanism, and specifically comprises a worm wheel 432 and a worm 431, and transmits the power of the motor 42 to the power output shaft 44, so that the power output shaft 44 rotates; referring to fig. 8, the power output shaft 44 includes a worm wheel fitting section 441, two bearing supporting sections 442 located at two sides of the worm wheel fitting section 441, and a thread section 443, wherein the worm wheel fitting section 441 is installed with a worm wheel, the worm wheel 432 is circumferentially fixed by a combination of a key way and an interference fit, the worm wheel 432 is axially fixed by a shaft shoulder and a shaft sleeve, the bearing supporting section 442 is installed with a pair of deep groove ball bearings (such as the bearing 34 and the bearing end cap 35 visible in fig. 5) for supporting the output shaft 44 on the housing 31, and the thread section 443 and the guide nut 45 form a screw transmission fit.
Specifically, the first end joint structure 12 is located at the joint of the box 32 and the first stabilizing roller arm 6, and the first end joint structure 12 specifically is: the box 32 and the first stabilizer roller arm 6 are bolted by a bolt hole provided on the left side of the box 32 for connecting the box 32 and the first stabilizer roller arm 6 and a bolt used in cooperation with the bolt hole.
Specifically, referring to fig. 7 and 7(a), the guide sleeve 51 is fixedly connected to the housing 31. The center of the guide sleeve 51 is processed into a circular through hole and forms a hole-shaft clearance fit with the rod body 21, so that the rod body 21 can move smoothly in the circular through hole of the guide sleeve 51; wherein, the inner surface of the guiding sleeve 51 is provided with a first guiding key groove, the outer surface of the rod body 21 is provided with a second guiding key groove, and a guiding flat key 22 is fixed in the second guiding key groove of the rod body 21 by a screw, and the guiding flat key 22 can circumferentially fix the rod body 21.
Referring to fig. 5, the temperature sensor 23 is mounted on the rod body 21 and used for feeding back the temperature information of the tie rod 1 to a controller in real time, and the controller calculates the number of turns of the motor 42 to be rotated according to the temperature difference and controls the motor 42 to operate.
Referring to fig. 9 in combination with fig. 3 and 5, the application of the present embodiment is as follows: when the strip steel hot-dip galvanizing unit is in a working environment, the high temperature in the zinc pot 3 is transferred to the cross-pull rod 1 through heat conduction, the temperature of the cross-pull rod 1 can reach more than 400 ℃, the temperature sensor 23 feeds back the temperature of the cross-pull rod 1 to the controller in real time after detecting the temperature, the controller can calculate the real-time elongation of the cross-pull rod 1 according to the change of the temperature, further controlling the motor 42 to rotate for a certain number of turns, transmitting the torque of the motor 42 to the power output shaft 44 through the worm wheel 432 and the worm 431, rotating the power output shaft 44 in the guide nut 45, leading the rod body 21 to be incapable of rotating because of the circumferential fixation of the key slot and only to move smoothly leftwards in the guide sleeve 51, finally shortening the tie rod 1 for a certain length which is just the heated extension of the tie rod 1, thereby ensuring that the cross pull rod 1 can not extend due to heating and cause the phenomena of bending of a roller arm, non-coaxial shaft sleeve and bearing bush, and the like.
When the strip steel hot-dip galvanizing unit needs to be maintained and offline, the temperature of the tie rod 1 is reduced, the temperature sensor also feeds temperature difference information back to the controller, and finally the motor 42 operates to drive the power output shaft 44 to rotate reversely, so that the tie rod 1 is extended, and the length is just the shortening amount of the temperature reduction of the tie rod 1.
The adjustable tie rod of the invention also avoids the defect of bending of the roller arm caused by the extension of the tie rod on the premise of improving the rigidity of the roller arm of the strip steel hot-dip galvanizing unit, and the length adjustment of the tie rod is real-time and automatic, thereby ensuring the intellectualization, safety and stability of the hot galvanizing process.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. An adjustable tie rod for a strip steel hot dip galvanizing unit, comprising:
the roller arm structure comprises a body part, a first end joint structure and a second end joint structure, wherein the body part is fixedly connected to the roller arm on one side through the first end joint structure and fixedly connected to the roller arm on the other side through the second end joint structure; wherein,
the body part mainly comprises a rod body, a shell, a transmission unit and a guide sleeve, wherein the shell is fixedly connected to the roller arm on one side through the first end joint structure; the transmission unit is arranged in the shell, the guide sleeve is fixedly connected to the shell, the rod body penetrates through the guide sleeve and forms hole-shaft clearance fit with the guide sleeve, and the rod body can move smoothly in the through hole of the guide sleeve; wherein,
the rod body is provided with two ends, the first end of the rod body is provided with a round blind hole which is coaxial with the rod body, the transmission unit is provided with a power output shaft, and the power output shaft penetrates through the guide sleeve; the power output shaft is characterized in that a threaded section is arranged at one end of the power output shaft, external threads are arranged on the threaded section, a guide nut is sleeved outside at least one section of the threaded section, the threaded section and the guide nut form spiral transmission fit, and the guide nut is fixedly connected to the first end of the rod body.
2. The adjustable tie rod for a hot dip strip galvanizing line of steel strip according to claim 1, wherein the transmission unit includes a driving device mounted above the housing, a mechanical transmission chain disposed in the housing and transmitting power of the driving device to the power output shaft so that the power output shaft rotates, a power output shaft, and the guide nut.
3. The adjustable tie rod for a strip steel hot dip galvanizing line as claimed in claim 1, wherein the body of the rod body is a solid steel rod, and the first end of the rod body is connected to the guide sleeve by: the internal surface of guide sleeve is equipped with first direction keyway, the surface of the first end of the body of rod is equipped with second direction keyway fixed at least one direction parallel key that is provided with in the second direction keyway, the direction parallel key is inlayed between two keyways.
4. The adjustable tie rod for the strip steel hot dip galvanizing unit of claim 2, wherein the mechanical transmission chain is of a worm gear structure, the worm gear structure is arranged inside the shell, the worm is connected to the output end of the driving device, and the worm gear structure comprises a worm wheel and the power output shaft; the power output shaft comprises a worm wheel matching section, a bearing supporting section and the thread section, the worm wheel is fixedly connected with the worm wheel matching section of the power output shaft through a central through hole formed in the worm wheel, and the power output shaft is supported on the shell through a pair of bearings arranged on two sides of the worm wheel.
5. The adjustable tie rod for a hot dip strip galvanizing line as claimed in claim 1, wherein the second end of the rod body is fixedly connected to the other side roller arm by the second end joint structure: the right-hand member of the body of rod is equipped with the external screw thread section, the external screw thread section passes a through-hole on the opposite side roller arm, and two nuts distribute in the both sides of opposite side roller arm to cooperation gasket will the second end of the body of rod is screwed on the opposite side roller arm.
6. The adjustable tie rod for the hot dip galvanizing unit of strip steel as claimed in claim 1, wherein a sensor is installed on the rod body, the sensor feeds back temperature information or deformation information of the tie rod to a controller in real time, and the controller calculates the number of turns of the driving device to be rotated according to the temperature difference or deformation information, controls the driving device to operate, and adjusts the length of the tie rod.
7. The adjustable tie rod for hot dip strip galvanizing line of claim 1, wherein the housing of the present invention is mainly composed of a box body and a box cover, and the first end joint structure of the present invention is a flange structure or a welded structure.
8. The adjustable tie rod for a hot dip galvanizing line of strip steel as claimed in claim 1, wherein the housing of the present invention has a protruding ring on one side surface, and four screw holes are formed on an end surface of the ring for fixing the guide sleeves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710352930.7A CN107190223B (en) | 2017-05-18 | 2017-05-18 | A kind of adjustable drag link for strip galvanizing by dipping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710352930.7A CN107190223B (en) | 2017-05-18 | 2017-05-18 | A kind of adjustable drag link for strip galvanizing by dipping unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107190223A true CN107190223A (en) | 2017-09-22 |
| CN107190223B CN107190223B (en) | 2019-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710352930.7A Expired - Fee Related CN107190223B (en) | 2017-05-18 | 2017-05-18 | A kind of adjustable drag link for strip galvanizing by dipping unit |
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| CN (1) | CN107190223B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376008A (en) * | 2020-10-30 | 2021-02-19 | 姚天成 | Hot-rolled strip steel continuous hot galvanizing equipment |
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| CN201053028Y (en) * | 2007-06-25 | 2008-04-30 | 宝钢新日铁汽车板有限公司 | Guide bar for submerged roller arm |
| JP2009097019A (en) * | 2007-10-12 | 2009-05-07 | Jfe Steel Corp | Device and method for detecting roll rotational speed, and device and method for controlling rotational speed of in-bath roll |
| CN201459223U (en) * | 2009-07-14 | 2010-05-12 | 中冶恒通冷轧技术有限公司 | Sink roll bearing base of zinc bath |
| CN202390517U (en) * | 2011-11-26 | 2012-08-22 | 江苏南山冶金机械制造有限公司 | Sink roller arm |
| CN207025897U (en) * | 2017-04-01 | 2018-02-23 | 江阴市华达涂装设备厂 | Aluminum-zinc alloy carries the arm assembly of three roller six of scraper |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201053028Y (en) * | 2007-06-25 | 2008-04-30 | 宝钢新日铁汽车板有限公司 | Guide bar for submerged roller arm |
| JP2009097019A (en) * | 2007-10-12 | 2009-05-07 | Jfe Steel Corp | Device and method for detecting roll rotational speed, and device and method for controlling rotational speed of in-bath roll |
| CN201459223U (en) * | 2009-07-14 | 2010-05-12 | 中冶恒通冷轧技术有限公司 | Sink roll bearing base of zinc bath |
| CN202390517U (en) * | 2011-11-26 | 2012-08-22 | 江苏南山冶金机械制造有限公司 | Sink roller arm |
| CN207025897U (en) * | 2017-04-01 | 2018-02-23 | 江阴市华达涂装设备厂 | Aluminum-zinc alloy carries the arm assembly of three roller six of scraper |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376008A (en) * | 2020-10-30 | 2021-02-19 | 姚天成 | Hot-rolled strip steel continuous hot galvanizing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107190223B (en) | 2019-04-30 |
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