CN112176825B - Intelligent adjusting device for drying roller body and control method thereof - Google Patents
Intelligent adjusting device for drying roller body and control method thereof Download PDFInfo
- Publication number
- CN112176825B CN112176825B CN202010964634.4A CN202010964634A CN112176825B CN 112176825 B CN112176825 B CN 112176825B CN 202010964634 A CN202010964634 A CN 202010964634A CN 112176825 B CN112176825 B CN 112176825B
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- driving part
- adjusting device
- intelligent adjusting
- electric actuator
- tug
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
- E01C19/1063—Controlling the operations
Abstract
The invention discloses an intelligent adjusting device for a drying roller body and a control method thereof, the device comprises the intelligent adjusting device for the drying roller body, a driving part comprises a first driving part and a second driving part, the first driving part and the second driving part respectively comprise a rolling ring and two tug wheel assemblies, the rolling ring is arranged on the outer side surface of the drying roller body, the two tug wheel assemblies are respectively and symmetrically arranged on two sides of a frame, the tug wheel assemblies drive the tug wheel assemblies to rotate through a speed reduction motor, the intelligent adjusting device also comprises intelligent adjusting assemblies arranged on the first driving part and the second driving part, each intelligent adjusting assembly comprises two eccentric gears, an electric actuator and a transmission mechanism, the two eccentric gears are symmetrically arranged on two sides of the rolling ring, one side of each eccentric gear is provided with a proximity switch, and the two tug wheel assemblies are connected through the electric actuator. By adopting the technical scheme, the roller can avoid the serious abrasion problem of the deviation-blocking wheel and the roller caused by the fact that the rolling ring of the roller body and the deviation-blocking wheel on the roller are in a state of being in contact all the time.
Description
Technical Field
The invention relates to the field of asphalt production, in particular to an intelligent adjusting device for a drying roller body and a control method thereof.
Background
A drying roller of asphalt stirring equipment is a device for heating and drying cold aggregate, and is one of core components of the whole asphalt stirring equipment. At present, the main transmission mode of the drying roller is mainly a friction drive mode, four speed reducing motors respectively drive supporting wheels to rotate, and the supporting wheels drive the whole roller body to rotate through friction force. Because the barrel of the roller is generally designed to have a certain inclination angle, in the continuous operation process, the barrel can shift up and down, so that the rolling ring of the barrel and the deviation-blocking wheel on the roller are in a state of being always contacted, the deviation-blocking wheel is seriously stressed, the deviation-blocking wheel and the roller can be seriously abraded after long-time operation, and even the deviation-blocking wheel shaft is bent and broken.
Disclosure of Invention
Aiming at the problems, the invention provides an intelligent adjusting device for a drying roller body and a control method thereof, wherein a roller tug group can realize automatic adjustment according to proximity switch signals on two sides of a rolling ring; the continuous adjustment of the roller is realized according to the time of the proximity switch sensing signal.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an intelligent adjusting device for a drying roller barrel comprises a rack and a barrel body obliquely arranged on the rack, wherein the barrel body is rotationally connected to the rack in a friction driving mode through a driving part, the driving part comprises a first driving part and a second driving part, the first driving part and the second driving part are symmetrically arranged, the first driving part and the second driving part respectively comprise a rolling ring and two tug wheel assemblies, the rolling ring is arranged on the outer side surface of the barrel body, the two tug wheel assemblies are respectively and symmetrically arranged on the front side and the rear side of the rack, each tug wheel assembly drives the tug wheel assembly to rotate through a speed reducing motor, so that the barrel body can be rotationally connected to the rack in a friction driving mode under the action of the speed reducing motor, and the intelligent adjusting device also comprises an intelligent adjusting assembly arranged on the first driving part and the second driving part, the intelligent adjusting assembly comprises two deflection blocking wheels, an electric actuator and a transmission mechanism, the two eccentric blocking wheels are symmetrically arranged on two sides of the rolling ring, the rack is positioned on one side of each eccentric blocking wheel and is connected with a proximity switch, and the two tug assemblies are connected through an electric actuator, so that the tug assemblies can adjust the direction to limit the downward sliding of the barrel under the action of the electric actuator.
Preferably, the rolling ring is connected with the barrel through a Z-shaped support frame, the top end of the Z-shaped support frame is welded on the inner side face of the rolling ring, and the bottom end of the Z-shaped support frame is welded on the outer side face of the barrel.
Preferably, a transverse supporting plate is fixedly connected to the lower portion of the tug assembly, and the transverse supporting plate is connected with the machine frame through a slewing bearing.
Preferably, the transmission mechanism comprises a connecting rod, two worm gear reducers and a transmission rod, the transmission rod is connected with the electric actuator, the two worm gear reducers are respectively connected to two ends of the transmission rod, the connecting rod is longitudinally arranged on the worm gear reducers, and the top end of the transmission rod is fixedly connected to the lower end face of the transverse supporting plate.
Preferably, the two links on the same electric actuator rotate in opposite directions.
Preferably, the device further comprises a control system respectively connected with the electric actuator and the speed reducing motor.
The control method of the intelligent adjusting device for the cylinder of the drying roller is also provided, and is characterized by comprising the following steps:
the method comprises the following steps: when the rolling ring is always in contact with the offset wheel, the proximity switch triggers a signal to the control system;
step two: when the signal is triggered for more than one minute continuously, the control system sends an instruction to the electric actuator;
step three: the electric actuator starts to operate after receiving the signal, and can drive the worm gear reducer and the connecting rod to rotate so that the tug wheel assembly can rotate for a certain angle around the connecting rod;
step four: if the proximity switch signal continuously generates the discontinuous trigger signal within 1 minute, the adjustment is finished; and if the trigger signal is always generated near the switch within 15 minutes, returning to the step two.
Preferably, in step three, the tug assembly is capable of rotating 0.2 degrees around the link.
From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:
the invention adopts the intelligent adjusting component formed by combining the two eccentric gears, the electric actuator and the transmission mechanism, namely the electric actuator operates to drive the transmission rod to rotate, further drive the turbine worm reducer to rotate, thereby driving the connecting rod to horizontally rotate, so that a certain angle is formed between the contact surface of the tug assembly and the rolling ring, the tug assembly has a reverse thrust F to the rolling ring, when the linear contact between the tug assembly and the rolling ring is changed into the point contact, the reverse thrust F of the tug assembly to the rolling ring forms a component force Fa in the central line direction of the rolling ring, and in the continuous rotation adjustment of the roller, the rolling ring is separated from the eccentric gears, thereby avoiding the situation that the rolling ring of the cylinder body and the eccentric gears on the roller are in a always-contacted state, leading the eccentric gears to be stressed seriously and possibly causing serious abrasion of the eccentric gears and the roller due to long-time operation, even the problem of bending and breaking of the eccentric wheel shaft occurs.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a prior art structure;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a flow chart of the operation of the present invention;
FIG. 4 is a schematic view of the tug assembly of the invention at an angle to the roller ring;
FIG. 5 is a first schematic diagram illustrating a position adjustment status according to the present invention;
FIG. 6 is a schematic diagram of a second embodiment of the present invention;
FIG. 7 is a third schematic view of the present invention illustrating a position adjustment state;
FIG. 8 is a fourth schematic view illustrating a position adjustment status according to the present invention;
FIG. 9 is an enlarged view of portion A of FIG. 1;
fig. 10 is a top view of the present invention.
In the figure, 1, a frame; 2. a barrel; 3. a first driving section; 4. a second driving section; 51. rolling a ring; 52. a tug assembly; 53. a reduction motor; 61. a deviation-blocking wheel; 62. an electric actuator; 63. a proximity switch; a Z-shaped support frame; 8. a transverse support plate; 91. a connecting rod; 92. a worm gear reducer; 93. a transmission rod; 10. a feeding end; 11. and a discharge end.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "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 invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Examples
Referring to fig. 2 to 4, an intelligent adjusting device for a drying drum comprises a frame 1 and a drum 2 obliquely arranged on the frame 1, wherein the drum 2 is rotationally connected to the frame in a friction driving manner through a driving component, the driving component comprises a first driving part 3 and a second driving part 4, the first driving part 3 and the second driving part 4 are symmetrically arranged, the first driving part 3 and the second driving part 4 respectively comprise a rolling ring 51 and two tug assemblies 52, the rolling ring 51 is arranged on the outer side surface of the drum 2, the two tug assemblies 52 are respectively symmetrically arranged on the front side and the rear side of the frame 1, each tug assembly 52 is driven to rotate by a speed reducing motor 53, so that under the action of the speed reducing motor 53, the drum 2 can be rotationally connected to the frame 1 in a friction driving manner, the intelligent adjusting device further comprises an intelligent adjusting assembly arranged on the first driving part and the second driving part, and the intelligent adjusting assembly comprises two blocking deflection wheels 61, 61 and a second driving part, and a driving part, wherein the first driving part and the second driving part are driven by the second driving part and the second driving part are driven by the first driving part and the second driving part, and the second driving part, and the second driving part, and the second driving part, and the second driving part, and the second driving part, the two deflecting wheels 61 are symmetrically arranged on two sides of the rolling ring 51, a proximity switch 63 is connected to one side of the frame 1, which is located on each deflecting wheel 61, and the two tug assemblies 52 are connected through the electric actuator 62, so that the tug assemblies 52 can adjust the direction to limit the downward sliding of the barrel 2 under the action of the electric actuator 62.
The rolling ring 51 is connected with the barrel 2 through a Z-shaped support frame 7, the top end of the Z-shaped support frame 7 is welded on the inner side face of the rolling ring 51, and the bottom end of the Z-shaped support frame 7 is welded on the outer side face of the barrel 2.
A transverse supporting plate 8 is fixedly connected below the tug assembly 52, and the transverse supporting plate 8 is connected with the frame 1 through a slewing bearing.
The transmission mechanism comprises a connecting rod 91, two worm gear reducers 92 and two transmission rods 93, the transmission rods 93 are connected with the electric actuator 62, the two worm gear reducers 92 are respectively connected to two ends of the transmission rods 93, the connecting rod 91 is longitudinally arranged on the worm gear reducers 92, and the top ends of the transmission rods 93 are fixedly connected to the lower end face of the transverse supporting plate 8.
The two links 91 on the same electric actuator 62 rotate in opposite directions.
And the control system is respectively connected with the electric actuator 62 and the speed reducing motor 53.
By adopting the structure, namely, the intelligent adjusting assembly formed by combining the two eccentric gears, the electric actuator and the transmission mechanism is adopted, namely the electric actuator operates to drive the transmission rod to rotate, so as to drive the worm gear reducer to rotate, thereby driving the connecting rod to horizontally rotate, so that a certain angle is formed between the contact surface of the tug assembly and the rolling ring as shown in figure 4, the tug assembly has a reverse thrust F to the rolling ring, when the linear contact between the tug assembly and the two circles of the rolling ring is changed into the point contact, the reverse thrust F to the rolling ring by the tug assembly forms a component force Fa in the central line direction of the rolling ring, and in the continuous rotation adjustment of the roller, the rolling ring is separated from the eccentric gears, so that the situation that the rolling ring of the roller body and the eccentric gears on the roller are in a continuous contact state can be avoided, the eccentric gears are seriously stressed, and the serious abrasion of the eccentric gears and the roller can be possibly caused by long-time operation, even the problem of bending and breaking of the eccentric wheel shaft occurs.
Wherein, the whole roller of the adjusting device in fig. 2 has two groups of front and back, when the proximity switch in fig. 2 triggers the signal, the four groups of the dragging wheel groups can carry out the simultaneous micro-adjustment, and the abrasion loss of the rolling ring and the dragging wheel is reduced.
Referring to fig. 3, a control method of an intelligent adjusting device for a cylinder of a drying drum includes the following steps:
the method comprises the following steps: when the rolling ring is always in contact with the offset wheel, the proximity switch triggers a signal to the control system;
step two: when the signal is triggered for more than one minute continuously, the control system sends an instruction to the electric actuator;
step three: the electric actuator starts to operate after receiving the signal, and can drive the worm gear reducer and the connecting rod to rotate so that the tug wheel assembly can rotate for a certain angle around the connecting rod;
step four: if the proximity switch signal continuously generates the discontinuous trigger signal within 1 minute, the adjustment is finished; and if the trigger signal is always generated near the switch within 15 minutes, returning to the step two.
Further, in step three, the tug assembly can rotate 0.2 degrees around the link.
By adopting the structure, when the roller (shown in fig. 1 and 9) is in a state that the rolling ring and the offset gear are always in contact, the proximity switch triggers a signal to the control system, when the signal is continuously triggered for more than 1 minute, the electric actuator starts to act, so that the worm gear reducer and the connecting rod are driven to rotate, finally, the whole tug assembly rotates for 0.2 degree around the connecting rod, if the signal is continuously triggered for more than 1 minute, the proximity switch still has an uninterrupted continuous signal for 1 minute, the rotary tug assembly is continuously adjusted for 0.2 degree every time until the proximity switch continuously generates an interrupted trigger signal within 1 minute, and the adjustment is finished. The whole flow is shown in fig. 3.
In this embodiment, the roller adjustment can be divided into four cases according to the difference between the roller turning direction and the roller front-back adjustment:
(the right hand rotary drum is the same as the physical right hand screw rule, the thumb is the material flow direction, the four curved fingers are the drum rotation direction, the right hand rotary drum is the right hand rotary drum according with the right hand, and the left hand rotary drum is the left hand rotary drum according with the left hand.)
As shown in fig. 5, when the roller is rotated by the right hand, the roller body needs to be adjusted towards the feeding end 10, the rolling ring 51 is always in contact with the offset wheel 61 positioned at the right side of the roller body, and the four tug assemblies 52 are adjusted by rotation according to the direction shown in the figure.
Fig. 6 shows the cylinder rotated by the right hand, the cylinder 2 needs to be adjusted towards the discharging end 11, the rolling ring 51 is in contact with the offset wheel 61 positioned at the left side of the cylinder, and the four tug assemblies 52 are rotated and adjusted according to the directions shown in fig. 5.
Fig. 7 shows a left-hand rotary drum, the drum body 2 is required to be adjusted towards the feeding end 10, the rolling ring 51 is always in contact with the offset wheel 61 on the right side of the drum body, and the four tug assemblies 52 are adjusted according to the direction shown in fig. 6.
Fig. 8 shows the left-hand rotary drum, the drum body 2 needs to be adjusted towards the discharging end 11, the rolling ring 51 is always contacted with the offset wheel 61 positioned at the left side of the drum body, and the four tug assemblies 52 are adjusted according to the direction shown in fig. 7.
The four adjustment modes can be realized by firstly setting the rotation direction of the roller through the control system, and then correspondingly adjusting the roller through the difference of the trigger signals of the two proximity switches on the two sides of the deviation blocking wheel 61 on the left side and the two sides of the deviation blocking wheel 61 on the right side of the roller.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. An intelligent adjusting device for a drying roller cylinder comprises a rack (1) and a cylinder body (2) obliquely arranged on the rack (1), wherein the cylinder body (2) is connected to the rack in a friction driving mode through a driving part, the driving part comprises a first driving part (3) and a second driving part (4), the first driving part (3) and the second driving part (4) are symmetrically arranged, the first driving part (3) and the second driving part (4) respectively comprise a rolling ring (51) and two tug wheel assemblies (52), the rolling ring (51) is arranged on the outer side surface of the cylinder body (2), the two tug wheel assemblies (52) are respectively and symmetrically arranged on the front side and the rear side of the rack (1), each tug wheel assembly (52) drives the rotation through a speed reducing motor (53), so that the cylinder body (2) can be connected to the rack (1) in a friction driving mode under the action of the speed reducing motor (53), the method is characterized in that: still including setting up the intelligent regulation subassembly on first drive division and second drive division, the intelligent regulation subassembly includes two fender eccentric wheels (61), electric actuator (62) and drive mechanism, two keep off setting of eccentric wheel (61) symmetry formula on the both sides of rolling circle (51), frame (1) are located each keep off and all be connected with a proximity switch (63) on one side of eccentric wheel (61), two be connected through electric actuator (62) between tow boat subassembly (52), impel under electric actuator (62)'s effect, tow boat subassembly (52) can adjust the direction in order to restrict the gliding of barrel (2).
2. The intelligent adjusting device for the cylinder of the drying roller as claimed in claim 1, wherein: the roller ring (51) is connected with the barrel (2) through a Z-shaped support frame (7), the top end of the Z-shaped support frame (7) is welded on the inner side face of the roller ring (51), and the bottom end of the Z-shaped support frame (7) is welded on the outer side face of the barrel (2).
3. The intelligent adjusting device for the cylinder of the drying roller as claimed in claim 2, wherein: a transverse supporting plate (8) is fixedly connected to the lower portion of the tug wheel assembly (52), and the transverse supporting plate (8) is connected with the rack (1) through a slewing bearing.
4. The intelligent adjusting device for the cylinder of the drying roller as claimed in claim 3, wherein: the transmission mechanism comprises a connecting rod (91), two worm and gear reducers (92) and transmission rods (93), the transmission rods (93) are connected with the electric actuator (62), the number of the worm and gear reducers (92) is two, the two worm and gear reducers are respectively connected to two ends of each transmission rod (93), the connecting rod (91) is longitudinally arranged on the worm and gear reducers (92), and the top ends of the transmission rods (93) are fixedly connected to the lower end face of the transverse supporting plate (8).
5. The intelligent adjusting device for the cylinder of the drying roller as claimed in claim 4, wherein: the rotation directions of the two connecting rods (91) on the same electric actuator (62) are opposite.
6. The intelligent adjusting device for the cylinder of the drying roller as claimed in claim 5, wherein: and the control system is respectively connected with the electric actuator (62) and the speed reducing motor (53).
7. The control method of the intelligent adjusting device for the cylinder of the drying drum as claimed in any one of claims 4 to 6, characterized by comprising the following steps:
the method comprises the following steps: when the rolling ring is always in contact with the offset wheel, the proximity switch triggers a signal to the control system;
step two: when the signal is triggered for more than one minute continuously, the control system sends an instruction to the electric actuator;
step three: the electric actuator starts to operate after receiving the signal, and can drive the worm and gear reducer and the connecting rod to rotate so that the tug assembly can rotate for a certain angle around the connecting rod;
step four: if the proximity switch signal continuously generates the discontinuous trigger signal within 1 minute, the adjustment is finished; and if the trigger signal is always generated near the switch within 15 minutes, returning to the step two.
8. The control method of the intelligent adjusting device for the cylinder of the drying roller as claimed in claim 7, wherein: in step three, the tug assembly can rotate 0.2 degrees around the link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010964634.4A CN112176825B (en) | 2020-09-15 | 2020-09-15 | Intelligent adjusting device for drying roller body and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010964634.4A CN112176825B (en) | 2020-09-15 | 2020-09-15 | Intelligent adjusting device for drying roller body and control method thereof |
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| Publication Number | Publication Date |
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| CN112176825A CN112176825A (en) | 2021-01-05 |
| CN112176825B true CN112176825B (en) | 2021-11-05 |
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| CN102641838A (en) * | 2012-05-09 | 2012-08-22 | 张玉 | Polygonal screen drum and polygonal-drum household garbage screening machine provided with same |
| CN103591794A (en) * | 2013-11-18 | 2014-02-19 | 中冶焦耐工程技术有限公司 | Self-centering friction drive lime rotary kiln |
| CN105182896A (en) * | 2015-09-26 | 2015-12-23 | 红塔烟草（集团）有限责任公司大理卷烟厂 | PLC control device of roller displacement |
| CN107265077A (en) * | 2016-04-06 | 2017-10-20 | 南通中集罐式储运设备制造有限公司 | The horizontal conveying of cylindrical workpiece and slewing equipment |
| CN110411174A (en) * | 2019-08-12 | 2019-11-05 | 福建铁拓机械有限公司 | A kind of ultra-large type roller rolling ring self-adjustable clamping and positioning device and its positioning process |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8727518B2 (en) * | 2012-06-11 | 2014-05-20 | Xerox Corporation | Method for positioning a metering blade with reference to roller and blade wear |
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2020
- 2020-09-15 CN CN202010964634.4A patent/CN112176825B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641838A (en) * | 2012-05-09 | 2012-08-22 | 张玉 | Polygonal screen drum and polygonal-drum household garbage screening machine provided with same |
| CN103591794A (en) * | 2013-11-18 | 2014-02-19 | 中冶焦耐工程技术有限公司 | Self-centering friction drive lime rotary kiln |
| CN105182896A (en) * | 2015-09-26 | 2015-12-23 | 红塔烟草（集团）有限责任公司大理卷烟厂 | PLC control device of roller displacement |
| CN107265077A (en) * | 2016-04-06 | 2017-10-20 | 南通中集罐式储运设备制造有限公司 | The horizontal conveying of cylindrical workpiece and slewing equipment |
| CN110411174A (en) * | 2019-08-12 | 2019-11-05 | 福建铁拓机械有限公司 | A kind of ultra-large type roller rolling ring self-adjustable clamping and positioning device and its positioning process |
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