CN213144941U - Rotary oil cylinder for hot rolling coiling machine - Google Patents
Rotary oil cylinder for hot rolling coiling machine Download PDFInfo
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- CN213144941U CN213144941U CN202021625291.0U CN202021625291U CN213144941U CN 213144941 U CN213144941 U CN 213144941U CN 202021625291 U CN202021625291 U CN 202021625291U CN 213144941 U CN213144941 U CN 213144941U
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Abstract
The utility model discloses a hot rolling is rotatory hydro-cylinder for coiling machine, include: the hydraulic oil cylinder comprises a seat body and a piston rod, wherein a sealing inner cavity is formed in the seat body, the piston rod penetrates through the sealing inner cavity, a piston ring is arranged on the piston rod, the sealing inner cavity is divided into two cavities by the piston ring, and oil inlet and outlet channels which are respectively communicated with the two cavities are formed in the seat body; the rotary joint is arranged at the shaft end of the piston rod and comprises a mounting flange, a first joint part and a second joint part which are sequentially connected, the mounting flange is fixedly connected with the base body, the two joint parts respectively comprise a shell and a rotating shaft penetrating through the shell, oil conveying holes are formed in the two shells, the two rotating shafts are connected end to end and fixedly connected with the mounting flange, and a flow passage for communicating the oil conveying holes with the oil inlet and outlet channels is formed in the rotating shaft; and the position detector is fixed at the end part of the second joint part, a linkage rod is arranged on the piston rod, the end part of the linkage rod penetrates out of the rotary joint, and the position detector obtains the action condition of the piston rod by measuring the axial displacement of the linkage rod.
Description
Technical Field
The utility model relates to a hydraulic equipment technical field especially relates to a hot rolling is rotatory hydro-cylinder for coiling machine.
Background
Hot-rolling coilers are widely used in the rolling of strip steel. The winding drum is the main functional equipment of the coiling machine and mainly has two functions, one is to drive the steel coil to rotate, and the other is the tension support of the steel coil. The tension is usually realized by pushing and pulling a mandrel of a winding drum by a rotary oil cylinder to drive parts such as an inclined slide block, a connecting plate and the like to complete the expansion and contraction function of a sector plate; the rotation is usually achieved by a speed reducer that rotates the spool spindle, which requires that a rotation cylinder mounted on the spool spindle must rotate with the spool. Therefore, the rotary oil cylinder not only needs to push the mandrel of the winding drum to move, but also needs to convey glycerol and cooling water media to the winding drum so as to fully ensure the lubrication among sliding surfaces of the winding drum and the water-cooling temperature reduction of the mandrel of the winding drum, thereby prolonging the service life of the winding drum and improving the production efficiency of the winding drum.
The current rotary oil cylinder is to ensure that the oil cylinder can not only normally stretch out and draw back, but also continuously rotate, and simultaneously, bearing lubricating grease is added to the winding drum, so that the design difficulty is high, unreasonable positions exist, pipelines are complex, the rotary action is influenced, and the oil leakage phenomenon generally exists. In addition, in the case of high position requirement, the position of the oil cylinder is difficult to master, and the oil cylinder cannot be matched with the existing intelligent control technology, so that further optimization is needed.
SUMMERY OF THE UTILITY MODEL
Based on above, the utility model provides a hot rolling is rotatory hydro-cylinder for coiling machine guarantees flexible and rotatory action to realize the stable transmission of hydraulic oil, bearing lubricating grease, and can pinpoint the hydro-cylinder position, improve the action precision.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a rotary cylinder for a hot rolling mill coiler, comprising:
the hydraulic oil cylinder comprises a seat body and a piston rod, wherein a sealing inner cavity is formed in the seat body, the piston rod penetrates through the sealing inner cavity, a piston ring is arranged on the piston rod, the sealing inner cavity is divided into two cavities by the piston ring, and an oil inlet and outlet duct which is communicated with the two cavities respectively is formed in the seat body;
the rotary joint is arranged at the shaft end of the piston rod and comprises a mounting flange, a first joint part for hydraulic oil transmission and a second joint part for lubricating grease transmission which are sequentially connected, the mounting flange is fixedly connected with the base body, the two joint parts respectively comprise a shell and a rotating shaft penetrating through the shell, oil conveying holes are respectively formed in the two shells, the two rotating shafts are connected end to end and fixedly connected with the mounting flange, and a flow channel for communicating the oil conveying holes with an oil inlet and outlet channel is formed in each rotating shaft;
and the position detector is fixed at the end part of the second joint part, a linkage rod is arranged on the piston rod, the end part of the linkage rod penetrates out of the rotary joint, and the position detector obtains the action condition of the piston rod by measuring the axial displacement of the linkage rod.
The high-pressure oil film sealing device comprises a shell, a rotating shaft, a lining, a through hole, a high-pressure oil film and a sealing ring, wherein the lining is arranged between the shell and the rotating shaft, the lining is provided with the through hole, the outer wall of the lining is tightly attached to the shell, the inner wall of the lining is in clearance fit with the rotating shaft, and the high-pressure oil film.
Wherein, the circumferential grooves convenient for butt joint are respectively arranged on the outer wall and the inner wall of the lining.
Wherein, the binding face of bush and casing corresponds the interface and is provided with O shape circle.
The position detector adopts a magnetic displacement sensor, the magnetic displacement sensor is fixed at the end part of the shell of the second joint part through a support, a magnetic ring is arranged on the linkage rod, and the magnetic ring is sleeved on a measuring rod of the magnetic displacement sensor.
Wherein, be provided with adjusting nut on the axle head of piston rod, the pedestal is spacing to adjusting nut to the stroke of restriction piston rod.
Wherein, press from both sides between piston rod and the pedestal and be equipped with the clamp cloth sealing washer.
Wherein, the shell of two joint portions is provided with a rotation stopping rod.
To sum up, the beneficial effects of the utility model are that, compared with the prior art, hot rolling is rotatory hydro-cylinder for coiling machine comprises hydraulic cylinder, rotary joint, position detector triplex, and this rotatory hydro-cylinder not only can realize continuous rotation work at the during operation, guarantees the stable transmission of hydraulic oil, realizes the normal flexible action of piston rod, can add bearing lubricating grease to its ann position simultaneously, and can master hydro-cylinder piston rod action position in real time, and inside runner sets up rationally, adopt the sealed reduction wearing and tearing of clearance formula, the oil leakage is few, the operation requirement has been satisfied, and structural stability is good, and long service life.
Drawings
FIG. 1 is a schematic structural diagram of a rotary cylinder for a hot rolling coiler according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a rotary cylinder for a hot rolling coiler according to an embodiment of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
fig. 4 is an enlarged view at B in fig. 2.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Referring to fig. 1 to 4, the present embodiment provides a rotary cylinder for a hot rolling coiler, which includes a hydraulic cylinder 100, a rotary joint 200, and a position detector 300.
The hydraulic oil cylinder 100 comprises a seat body 101 and a piston rod 102, wherein a sealed inner cavity 103 is arranged in the seat body 101, the piston rod 102 penetrates through the sealed inner cavity 103, a piston ring 104 is arranged on the piston rod 102, the sealed inner cavity 103 is divided into two chambers by the piston ring 104, and an oil inlet and outlet duct 105 which is respectively communicated with the two chambers is arranged on the seat body 101.
An adjusting nut 106 is arranged at the shaft end of the piston rod 102, and the seat body 101 limits the position of the adjusting nut 106, so that the stroke of the piston rod 102 is limited. A cloth clamping seal ring 107 is clamped between the piston rod 102 and the seat body 101 to realize axial dynamic sealing.
The rotary joint 200 is arranged at the shaft end of the piston rod 102, and comprises a mounting flange 201, a first joint portion 202 and a second joint portion 203, wherein the mounting flange 201, the first joint portion 202 and the second joint portion 203 are sequentially connected, the first joint portion 202 is used for transmitting hydraulic oil, the second joint portion 203 is used for transmitting lubricating grease, the mounting flange 201 is fixedly connected with the base body 101, the two joint portions comprise a shell 204 and a rotating shaft 205, the rotating shaft 205 penetrates through the shell 204, oil transmission holes 206 are formed in the two shells 204, the two rotating shafts 205 are connected end to end and fixedly connected with the mounting flange 201, and a flow channel 207 for.
A bushing 208 is arranged between the shell 204 and the rotating shaft 205, a through hole is formed in the bushing 208, the outer wall of the bushing 208 is tightly attached to the shell 204, the inner wall of the bushing 208 is in clearance fit with the rotating shaft 205, and a high-pressure oil film with sealing capability is formed in a clearance 209 between the inner wall of the bushing 208 and the rotating shaft 205. Circumferential grooves 212 convenient for butt joint are formed in the outer wall and the inner wall of the lining 208. An O-shaped ring 210 is arranged on the joint corresponding to the joint on the abutting surface of the bushing 208 and the shell 204, so that the sealing performance of the joint is ensured, and the leakage is reduced.
The shell 204 of the two joint parts is provided with a rotation stopping rod 211 to prevent the shell from following rotation.
The position detector 300 is fixed at the end of the second joint part 203, the piston rod 102 is provided with a linkage rod 301, the end of the linkage rod 301 penetrates out of the rotary joint 200, and the position detector 300 measures the axial displacement of the linkage rod 301 to obtain the action condition of the piston rod 102.
The position detector 300 herein preferably adopts a magnetic displacement sensor 302, the magnetic displacement sensor 302 is fixed to the end of the housing 204 of the second connector portion 203 through a bracket 303, a magnetic ring 304 is arranged on the linkage rod 301, and the magnetic ring 304 is sleeved on the measuring rod of the magnetic displacement sensor 302.
In conclusion, the rotary oil cylinder for the hot rolling coiler consists of the hydraulic oil cylinder, the rotary joint and the position detector, when the rotary oil cylinder works, continuous rotary work can be achieved, stable transmission of hydraulic oil is guaranteed, normal telescopic action of a piston rod is achieved, meanwhile, bearing lubricating grease can be added to the installation part of the rotary oil cylinder, the action position of the piston rod of the oil cylinder can be mastered in real time, an internal flow channel is reasonably arranged, intermittent sealing is adopted, abrasion is reduced, oil leakage is less, the use requirement is met, the structural stability is good, and the service life is long.
The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A rotary oil cylinder for a hot rolling coiler is characterized by comprising
The hydraulic oil cylinder comprises a seat body and a piston rod, wherein a sealed inner cavity is formed in the seat body, the piston rod penetrates through the sealed inner cavity, a piston ring is arranged on the piston rod, the sealed inner cavity is divided into two chambers by the piston ring, and an oil inlet and outlet duct which is communicated with the two chambers respectively is formed in the seat body;
the rotary joint is arranged at the shaft end of the piston rod and comprises a mounting flange, a first joint part for hydraulic oil transmission and a second joint part for lubricating grease transmission which are sequentially connected, the mounting flange is fixedly connected with the base body, the two joint parts respectively comprise a shell and a rotating shaft penetrating through the shell, oil transmission holes are respectively formed in the two shells, the two rotating shafts are connected end to end and fixedly connected with the mounting flange, and a flow channel for communicating the oil transmission holes with the oil inlet and outlet channels is formed in the rotating shafts;
and the position detector is fixed at the end part of the second joint part, a linkage rod is arranged on the piston rod, the end part of the linkage rod penetrates out of the rotary joint, and the position detector obtains the action condition of the piston rod by measuring the axial displacement of the linkage rod.
2. The rotary cylinder for a hot rolling coiler according to claim 1, characterized in that: the oil-gas separator is characterized in that a bushing is arranged between the shell and the rotating shaft, a through hole is formed in the bushing, the outer wall of the bushing is tightly attached to the shell, the inner wall of the bushing is in clearance fit with the rotating shaft, and a high-pressure oil film with sealing capacity is formed in the clearance.
3. The rotary cylinder for a hot rolling coiler according to claim 2, characterized in that: the outer wall and the inner wall of the lining are provided with circumferential grooves convenient for butt joint.
4. The rotary cylinder for a hot rolling coiler according to claim 2, characterized in that: and an O-shaped ring is arranged on the joint surface of the lining and the shell corresponding to the joint.
5. The rotary cylinder for a hot rolling coiler according to claim 1, characterized in that: the position detector adopts a magnetic displacement sensor, the magnetic displacement sensor is fixed at the end part of the shell of the second joint part through a support, and the linkage rod is provided with a magnetic ring which is sleeved on a measuring rod of the magnetic displacement sensor.
6. The rotary cylinder for a hot rolling coiler according to claim 1, characterized in that: and an adjusting nut is arranged at the shaft end of the piston rod, and the seat body limits the adjusting nut, so that the stroke of the piston rod is limited.
7. The rotary cylinder for a hot rolling coiler according to claim 1, characterized in that: and a cloth clamping sealing ring is clamped between the piston rod and the seat body.
8. The rotary cylinder for a hot rolling coiler according to claim 1, characterized in that: and the shell of each joint part is provided with a rotation stopping rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021625291.0U CN213144941U (en) | 2020-08-06 | 2020-08-06 | Rotary oil cylinder for hot rolling coiling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021625291.0U CN213144941U (en) | 2020-08-06 | 2020-08-06 | Rotary oil cylinder for hot rolling coiling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213144941U true CN213144941U (en) | 2021-05-07 |
Family
ID=75736372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021625291.0U Active CN213144941U (en) | 2020-08-06 | 2020-08-06 | Rotary oil cylinder for hot rolling coiling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213144941U (en) |
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2020
- 2020-08-06 CN CN202021625291.0U patent/CN213144941U/en active Active
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