CN209779325U - Bidirectional loading hydraulic cylinder for boot roller - Google Patents
Bidirectional loading hydraulic cylinder for boot roller Download PDFInfo
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- CN209779325U CN209779325U CN201920332542.7U CN201920332542U CN209779325U CN 209779325 U CN209779325 U CN 209779325U CN 201920332542 U CN201920332542 U CN 201920332542U CN 209779325 U CN209779325 U CN 209779325U
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Abstract
The utility model provides a two-way loading pneumatic cylinder is used to boots roller, including cylinder and piston, the piston is installed in the cylinder, and the upper cover is installed on piston upper portion, and upper cover top center is fixed with the dabber, the inside hollow structure that is of piston, the inside intermediate layer that is provided with of piston, intermediate layer top are fixed with the intermediate layer lid, and the intermediate layer lid is connected with the dabber bottom, installs T shape axle in the intermediate layer, and the T shape axle includes the circular disk on upper portion and the cylindrical axle of lower part, and cylindrical axle lower part is together fixed with the cylinder, and the cylinder bottom is provided with the loading and advances the oil gallery, and cylindrical axle center is provided with the uninstall. The utility model discloses an upper cover and boots board bottom surface are plane contact, and area of contact is big, and pressure is less during the loading, can protect pneumatic cylinder and boots board bottom not by crushing, when the boots board produced the amount of deflection and warp and cylinder bottom plate nonparallel, the sealed work that also can be as usual of pneumatic cylinder high pressure oil, has realized the function of pneumatic cylinder bilateral action moreover.
Description
Technical Field
The utility model belongs to the technical field of papermaking equipment, concretely relates to boots roller is with two-way loading pneumatic cylinder.
Background
The shoe press with a wide press area is the most efficient press accepted by the paper industry today, and the pressure between the shoe roll and the counter roll is typically up to 800-1200KN per meter of roll length, and is provided by one or two rows of loading hydraulic cylinders arranged behind the shoe plate. Since the pressure of the roller is particularly high, as shown in fig. 1, the ends of the common hydraulic cylinder are connected through the joint, and since the contact area is relatively small, the pressure between the hydraulic cylinder and the shoe plate is very high, which easily causes indentation on the contact surface. In addition, because the shoe plate deforms along with the deflection of the mating roller during working, an angle needs to be formed between the piston of the hydraulic cylinder and the cylinder barrel, the axes of the piston and the cylinder barrel of the common hydraulic cylinder are concentric, if the piston and the cylinder barrel incline to form an angle, sealing leakage can be caused, and the pressure of the hydraulic cylinder is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems existing in the prior art and providing a bidirectional loading hydraulic cylinder for a boot roller.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a two-way loading pneumatic cylinder is used to boots roller, including cylinder and piston, the piston is installed in the cylinder, the inside hollow structure that is of piston, piston upper portion fixed mounting has the upper cover, upper cover top center is fixed with the dabber, the inside intermediate layer that is provided with of piston, the intermediate layer top is fixed with the intermediate layer lid, intermediate layer lid and dabber bottom fixed connection, install the T-shaped axle in the intermediate layer, the T-shaped axle includes the circular disk on upper portion and the cylindrical shaft of lower part, cylindrical shaft lower part is together fixed with the cylinder, piston and upper cover, the dabber, relative fixation between intermediate layer lid and the intermediate layer, relative slip between piston and cylinder and the T-shaped shaft, the cylinder bottom is provided with the loading and advances the oil gallery, cylindrical shaft center.
The interlayer is a groove-shaped interlayer, a gap I is formed between the upper surface of the circular disc of the T-shaped shaft and the upper part of the groove-shaped interlayer, a gap II is formed between the lower surface of the circular disc of the T-shaped shaft and the inner bottom surface of the groove-shaped interlayer, a gap III is formed between the groove-shaped interlayer and the inner wall of the piston, and a gap IV communicated with the gap I is formed in the interlayer cover.
And the unloading oil inlet and return hole is communicated with a gap II between the T-shaped shaft and the groove-shaped interlayer.
There is the combination formula sealed between piston upper portion outside and the upper cover, and the piston upper portion outside is provided with the upper sealing ring, and it has sealing washer I to inlay in the upper sealing ring, and there is the combination formula sealed between the piston lower part outside and the cylinder, and the piston lower part outside is provided with lower sealing ring, and it has sealing washer II to inlay in the lower sealing ring, and the circular disk neighboring on T axle upper portion is provided with sealing washer III with intermediate layer inner wall contact department, and the cylindrical axle of T axle lower part is provided with sealing washer IV with the intermediate layer's of recess shape contact.
The outer diameter of the upper cover is larger than that of the upper sealing ring of the piston, the lower surface of the outer edge of the upper cover is flush with the bottom of the upper sealing ring of the piston, and the lower surface of the outer edge of the upper cover is provided with a pressing plate.
The top of the pressure plate is contacted with the bottom of the upper sealing ring, and the inner side of the pressure plate is contacted with the outer wall of the piston.
The outer diameter of the cylinder barrel is larger than that of the piston lower sealing ring, the height of the upper surface of the outer side of the cylinder barrel is higher than that of the upper surface of the lower sealing ring, and the upper surface of the outer side of the cylinder barrel extends towards the inner side to be in contact with the outer wall of the piston.
The bottom of the boot plate is provided with a mandrel hole, and the mandrel is matched and fixed with the mandrel hole.
The middle part of the mandrel is provided with a pin hole in the vertical direction, a pin is arranged in the middle part of the mandrel hole in the vertical direction, and the pin in the mandrel hole is matched and fixed with the pin hole in the mandrel.
The beneficial effects of the utility model reside in that: the utility model provides a two-way loading pneumatic cylinder is used to boots roller, the upper cover is the plane contact with the boots board bottom surface, area of contact is big, pressure is less during the loading, can protect pneumatic cylinder and boots board bottom not crushed by pressure, in addition, the cylinder, contact through the sealing washer between piston and the upper cover, the degree of freedom of activity is great, when the boots board produces the amount of deflection and warp with cylinder bottom plate nonparallel, pneumatic cylinder high pressure oil seal can work as usual, thereby guarantee the stability of pneumatic cylinder to boots board loading force, and the function of pneumatic cylinder dual-action has been realized.
Drawings
Fig. 1 is a schematic structural view of a conventional hydraulic cylinder.
Fig. 2 is a schematic view of the loading state of the present invention.
Fig. 3 is a schematic view of the unloading state of the present invention.
FIG. 4 is a schematic view showing the operation of the loading cylinder and the boot plate.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 2 and fig. 3, the utility model provides a two-way loading hydraulic cylinder for boot roller, which comprises a cylinder barrel 1 and a piston 2, wherein the piston 2 is arranged in the cylinder barrel 1, the piston 2 is internally of a hollow structure, the upper part of the piston 2 is fixedly provided with an upper cover 3, the top center of the upper cover 3 is fixed with a mandrel 4, the piston 2 is internally provided with an interlayer 5, the top of the interlayer 5 is fixed with an interlayer cover 6, the interlayer cover 6 is fixedly connected with the bottom of the mandrel 4, the interlayer 5 is internally provided with a T-shaped shaft 7, the T-shaped shaft 7 comprises an upper circular disc and a lower cylindrical shaft, the lower part of the cylindrical shaft is fixed with the cylinder barrel 1, the piston 2, the, the interlayer cover 6 and the interlayer 5 are relatively fixed, the piston 2, the cylinder barrel 1 and the T-shaped shaft 7 slide relatively, the bottom of the cylinder barrel 1 is provided with a loading oil inlet and return hole 8, and the center of the cylindrical shaft is provided with an unloading oil inlet and return hole 9.
The interlayer 5 is a groove-shaped interlayer, a gap I10 is reserved between the upper surface of the circular disc of the T-shaped shaft 7 and the upper part of the groove-shaped interlayer 5, a gap II 11 is reserved between the lower surface of the circular disc of the T-shaped shaft 7 and the inner bottom surface of the groove-shaped interlayer 5, a gap III 12 is reserved between the groove-shaped interlayer 5 and the inner wall of the piston 2, and a gap IV 13 communicated with the gap I10 is arranged in the interlayer cover 6.
The unloading oil inlet and return hole 9 is communicated with a clearance II 11 between the T-shaped shaft 7 and the groove-shaped interlayer 5.
There is the combination formula sealed between 2 upper portion outsides of piston and the upper cover 3, 2 upper portion outsides of piston are provided with upper seal ring 14, it has sealing washer I15 to inlay in the upper seal ring 14, it is sealed that there is the combination formula between 2 lower part outsides of piston and the cylinder 1, 2 lower part outsides of piston are provided with lower sealing ring 16, it has sealing washer II 17 to inlay in the lower sealing ring 16, the circular disk neighboring on T axle 7 upper portion contacts the department with intermediate layer 5 inner wall and is provided with sealing washer III 18, the cylindrical axle of T axle 7 lower part and the contact department of flute profile intermediate layer 5 are provided with sealing washer IV.
The outer diameter of the upper cover 3 is larger than that of the piston upper sealing ring 14, the lower surface of the outer edge of the upper cover 3 is flush with the bottom of the piston upper sealing ring 14, and the lower surface of the outer edge of the upper cover 3 is provided with a pressing plate 20.
The top of the pressure plate 20 is contacted with the bottom of the upper sealing ring 14, and the inner side of the pressure plate 20 is contacted with the outer wall of the piston 2.
The outer diameter of the cylinder barrel 1 is larger than that of the piston lower sealing ring 16, the height of the upper surface of the outer side of the cylinder barrel 1 is higher than that of the upper surface of the lower sealing ring 16, and the upper surface of the outer side of the cylinder barrel 1 extends inwards to be in contact with the outer wall of the piston 2.
The bottom of the boot plate is provided with a mandrel hole, and the mandrel 4 is matched and fixed with the mandrel hole. The middle part of the mandrel 4 is provided with a pin hole 21 in the vertical direction, a pin is arranged in the middle part of the mandrel hole in the vertical direction, and the pin in the mandrel hole is matched and fixed with the pin hole 21 in the mandrel 4. The shoe plate can be pulled downwards during unloading through the pin fixing, so that the hydraulic cylinder has a double-acting function.
The utility model discloses at the during operation, fix the dabber at pneumatic cylinder top downthehole at the dabber of boots board bottom, the pinhole in the dabber cooperatees fixedly with the downthehole pin of dabber, and the pneumatic cylinder bottom is fixed on the rigid beam of boots roller. In a loading state, loaded high-pressure oil enters the cylinder barrel 1 through the loaded oil inlet and return hole 8, enters a gap between the upper cover 3 and the piston 2 through a gap III 12 between the interlayer 5 and the piston 2, then enters a gap I10 through a gap IV 13 in the interlayer cover 6, the upper cover 3 is jacked up under the action of the oil pressure, the piston 2 can move upwards along with the upper cover 3, and the upper cover 3 pushes the shoe plate to move upwards and pressurize the shoe plate; under the unloading state, unloading high-pressure oil enters a gap II 11 between the lower surface of a circular disc of the T-shaped shaft 7 and the inner bottom surface of the interlayer 5 through the unloading oil inlet and return hole 9, the piston 2 and the interlayer 5 are pressurized downwards under the action of oil pressure, the loaded high-pressure oil is released from the loading oil inlet and return hole 8, the piston 2 moves downwards along with the upper cover 3, the shoe plate is pulled downwards by the mandrel 4, the hydraulic cylinder achieves the function of bidirectional action, thrust is generated on the shoe plate during loading, and the shoe plate can be pulled back when the operation is stopped.
The utility model discloses an upper cover and boots board bottom surface are plane contact, and area of contact is big, and pressure is less during the loading, can protect pneumatic cylinder and boots board bottom not crushed by pressure, in addition, because contact through the sealing washer between cylinder, piston and the upper cover, the degree of freedom of activity is great, as shown in figure 4, produces the amount of deflection at the boots board and warp and when with cylinder bottom plate nonparallel, pneumatic cylinder high pressure oil seal also can work as usual to guarantee the stability of pneumatic cylinder to boots board loading force.
The above is the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, the present invention is not limited by the above embodiments, and a plurality of changes and improvements can be made without departing from the overall concept of the present invention, and these should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a two-way loading pneumatic cylinder is used to boots roller, includes cylinder and piston, and the piston is installed in the cylinder, its characterized in that: the piston is internally of a hollow structure, an upper cover is fixedly mounted on the upper portion of the piston, a mandrel is fixed at the center of the top of the upper cover, an interlayer is arranged inside the piston, an interlayer cover is fixed at the top of the interlayer, the interlayer cover is fixedly connected with the bottom of the mandrel, a T-shaped shaft is mounted in the interlayer, the T-shaped shaft comprises a circular disc on the upper portion and a cylindrical shaft on the lower portion, the lower portion of the cylindrical shaft is fixed with the cylinder barrel, the piston and the upper cover are fixed relatively, the mandrel, the interlayer cover and the interlayer are fixed relatively, the piston and the cylinder barrel and the T-shaped shaft slide relatively, an oil inlet and an oil outlet are formed in.
2. The bidirectional-loading hydraulic cylinder for a shoe roll according to claim 1, wherein: the interlayer is a groove-shaped interlayer, a gap I is formed between the upper surface of the circular disc of the T-shaped shaft and the upper part of the groove-shaped interlayer, a gap II is formed between the lower surface of the circular disc of the T-shaped shaft and the inner bottom surface of the groove-shaped interlayer, a gap III is formed between the groove-shaped interlayer and the inner wall of the piston, and a gap IV communicated with the gap I is formed in the interlayer cover.
3. The bidirectional-loading hydraulic cylinder for a shoe roll according to claim 2, wherein: and the unloading oil inlet and return hole is communicated with a gap II between the T-shaped shaft and the groove-shaped interlayer.
4. The bidirectional-loading hydraulic cylinder for a shoe roll according to claim 2, wherein: there is the combination formula sealed between piston upper portion outside and the upper cover, and the piston upper portion outside is provided with the upper sealing ring, and it has sealing washer I to inlay in the upper sealing ring, and there is the combination formula sealed between the piston lower part outside and the cylinder, and the piston lower part outside is provided with lower sealing ring, and it has sealing washer II to inlay in the lower sealing ring, and the circular disk neighboring on T axle upper portion is provided with sealing washer III with intermediate layer inner wall contact department, and the cylindrical axle of T axle lower part is provided with sealing washer IV with the intermediate layer's of recess shape contact.
5. The bidirectional-loading hydraulic cylinder for a shoe roll according to claim 4, wherein: the outer diameter of the upper cover is larger than that of the upper sealing ring of the piston, the lower surface of the outer edge of the upper cover is flush with the bottom of the upper sealing ring of the piston, and the lower surface of the outer edge of the upper cover is provided with a pressing plate.
6. The bidirectional-loading hydraulic cylinder for a shoe roll according to claim 5, wherein: the top of the pressure plate is contacted with the bottom of the upper sealing ring, and the inner side of the pressure plate is contacted with the outer wall of the piston.
7. The bidirectional-loading hydraulic cylinder for a shoe roll according to claim 4, wherein: the outer diameter of the cylinder barrel is larger than that of the piston lower sealing ring, the height of the upper surface of the outer side of the cylinder barrel is higher than that of the upper surface of the lower sealing ring, and the upper surface of the outer side of the cylinder barrel extends towards the inner side to be in contact with the outer wall of the piston.
8. The bidirectional-loading hydraulic cylinder for a shoe roll according to claim 1, wherein: the bottom of the boot plate is provided with a mandrel hole, and the mandrel is matched and fixed with the mandrel hole.
9. The bidirectional-loading hydraulic cylinder for a shoe roll according to claim 8, wherein: the middle part of the mandrel is provided with a pin hole in the vertical direction, a pin is arranged in the middle part of the mandrel hole in the vertical direction, and the pin in the mandrel hole is matched and fixed with the pin hole in the mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920332542.7U CN209779325U (en) | 2019-03-15 | 2019-03-15 | Bidirectional loading hydraulic cylinder for boot roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920332542.7U CN209779325U (en) | 2019-03-15 | 2019-03-15 | Bidirectional loading hydraulic cylinder for boot roller |
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| Publication Number | Publication Date |
|---|---|
| CN209779325U true CN209779325U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920332542.7U Active CN209779325U (en) | 2019-03-15 | 2019-03-15 | Bidirectional loading hydraulic cylinder for boot roller |
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| CN (1) | CN209779325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111270545A (en) * | 2020-03-30 | 2020-06-12 | 江苏华东造纸机械东台有限公司 | Shoe roller structure form of shoe press |
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2019
- 2019-03-15 CN CN201920332542.7U patent/CN209779325U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111270545A (en) * | 2020-03-30 | 2020-06-12 | 江苏华东造纸机械东台有限公司 | Shoe roller structure form of shoe press |
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