CN203532402U - High-pressure oil cylinder - Google Patents
High-pressure oil cylinder Download PDFInfo
- Publication number
- CN203532402U CN203532402U CN201320642680.8U CN201320642680U CN203532402U CN 203532402 U CN203532402 U CN 203532402U CN 201320642680 U CN201320642680 U CN 201320642680U CN 203532402 U CN203532402 U CN 203532402U
- Authority
- CN
- China
- Prior art keywords
- inner casing
- outer shell
- inner cylinder
- cylinder
- outage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000005242 forging Methods 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract 10
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Forging (AREA)
Abstract
A high-pressure oil cylinder comprises an outer cylinder, an inner cylinder used as an outer cylinder plunger, an inner cylinder plunger, a connection pipe and a control valve unit. An outer cylinder liquid feeding and draining hole and an inner cylinder liquid feeding and draining hole are formed in the bottom of the outer cylinder. The inner cylinder liquid feeding and draining hole is formed in the center of the bottom of the outer cylinder. The inner cylinder is arranged in the outer cylinder, the inner cylinder plunger is arranged in the inner cylinder, the axial section of the inner cylinder plunger is in a U shape, and an axial blind hole is formed in the inner cylinder plunger. One end of the connection pipe is connected with the inner cylinder liquid feeding and draining hole, and the other end of the connection pipe passes through the bottom of the inner cylinder and then is arranged in the blind hole of the inner cylinder plunger. A sealing piece is arranged between the connection pipe and the bottom of the inner cylinder. The control valve unit comprises an outer cylinder liquid feeding and draining valve and an inner cylinder liquid feeding and draining valve. The outer cylinder liquid feeding and draining valve is connected with the outer cylinder liquid feeding and draining hole. The inner cylinder liquid feeding and draining valve is connected with the inner cylinder liquid feeding and draining hole. The high-pressure oil cylinder can improve high-speed forging frequency by 15%, and improve production efficiency by 12%.
Description
Technical field
The utility model relates to high speed forging hydraulic press, relates in particular to a kind of high-voltage oil cylinder.
Background technique
Forging hydraulic press is that a kind of general free forging equipment is widely used in machinery, metallurgy, petrochemical industry, Aero-Space, railway transport, the industries such as shipbuilding.In order to improve unit efficiency and to meet Forging Technology requirement, forging hydraulic press need to carry out pressure and velocity stages textural, the forging hydraulic press of general 30-72MN series adopts the structure of three work master cylinders to realize, and triplex structure can be subdivided into again the structure of three isometrical cylinders and large two little cylinders.The cylinder body of three master cylinders adopts flange to be fastened on upper beam, and plunger is connected with walking beam.When needs are realized pressure or velocity stages, three different being used in combination of master cylinder can realize three cylinder workings under the control of valve group, two cylinder workings, and a cylinder working, obtains three kinds of different pressure and speed; During two master cylinder work, another cylinder is done idle running to-and-fro motion, and during a master cylinder job, another two cylinders are done idle running to-and-fro motion, therefore when fast forging, does not conventionally use the mode of operation of a cylinder.
Said structure has following deficiency:
1) three master cylinders must have three cylinder bodies and plunger, in order to fix three master cylinders, upper beam just must have enough length, and walking beam, bottom end rail again must be at least isometric with upper beam, therefore meeting structure to rigidity, during requirement of strength, the physical dimension of frame is just bigger than normal, and total quality just increases.
2) three master cylinders just must configure three circuits and valve group is controlled it in hydraulic system, to realize different mode of operation requirements.In order to realize the requirement of hydraulic system of press to velocity of medium, the wetted perimeter of three cover master cylinders and pipeline is long, and hydraulic radius is little, and the local resistance of hydraulic system is large.Regularly, reactive loss is high so just to have caused in work fast Pressesforging output power one, and system heating is large, and forging the frequency, to forge especially soon the frequency much lower, the raising of restriction manufacturing efficiency.
3) because three master cylinders are arranged on the position between upper beam and column, kicker cylinder just can only be arranged on the outside of upper beam or bottom end rail, has increased above the length of bottom end rail; Casting beam has been strengthened to die cavity physical dimension, improved technology difficulty.Press has also been increased to boundary dimension.
Model utility content
Based on this, for above-mentioned technical problem, provide a kind of high-voltage oil cylinder.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of high-voltage oil cylinder, comprise outer shell, inner casing as described outer cylinder plug, interior cylinder plug, take over and control valve group, the bottom of described outer shell is provided with that outer shell enters outage and inner casing enters outage, described inner casing enters the center that outage is positioned at outer shell bottom, described inner casing is located in described outer shell, described interior cylinder plug is located in described inner casing, the axial cross section of this interior cylinder plug is U-shaped, which is provided with axial blind hole, one end of described adapter is entered outage with described inner casing and is connected, its the other end is visited and is located in the blind hole of described interior cylinder plug through the bottom of described inner casing, and be provided with Sealing between described adapter and the bottom of described inner casing, described control valve group comprises outer shell combination valve and inner casing combination valve, described outer shell combination valve enters outage with described outer shell and is connected, described inner casing combination valve enters outage with described inner casing and is connected.
It is two that described outer shell enters outage, and described outer shell combination valve is two, and enters outage with an outer shell respectively and be connected.
One end of described adapter is entered outage by a flange with described inner casing and is connected.
The utlity model has following advantage:
1, independence and the associated movement under rated pressure can be realized in the interior outer shell any position within the scope of journey of being expert at;
2, adopt after the utility model device, kicker cylinder can be placed in the both sides of the utility model device, has optimized the structure of high speed forging hydraulic press body, has improved press offset load resistance and reliability;
3, under equal performance Parameter Conditions, can alleviate Main cylinder quality 12%, reduce manufacture cost;
4, because change has occurred Main cylinder structure, under equal performance Parameter Conditions, can alleviate upper beam quality 8%, reduce manufacture cost;
5 and the three Main cylinder structure comparisons of existing press, hydraulic radius is large, and the local resistance while having reduced in master cylinder work rapid movement especially, has improved unit efficiency;
6, the high speed forging hydraulic press for 30-72MN can improve the fast forging frequency 15%, enhances productivity 12%.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments the utility model, be elaborated:
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of high-voltage oil cylinder, comprises outer shell 110, inner casing 120, interior cylinder plug 130, adapter 140 and control valve group 150.
The bottom of outer shell 110 is provided with that outer shell enters outage 111 and inner casing enters outage 112, and inner casing enters the center that outage 112 is positioned at outer shell 110 bottoms.
Inner casing 120, as the plunger of outer shell 110, is located in outer shell 110.
Interior cylinder plug 130 is located in inner casing 120, and the axial cross section of this interior cylinder plug 130 is U-shaped, which is provided with axial blind hole.
One end of adapter 140 is entered outage 112 with inner casing and is connected, its the other end is visited and is located in the blind hole of interior cylinder plug 130 through the bottom of inner casing 120, and be provided with Sealing 160 between adapter 140 and the bottom of inner casing 120, by take over 140 and Sealing 160 outer shell 110 and inner casing 120 are separated, meanwhile, take over 140 effects of playing as inner casing 120 feed liquors and discharge opeing.
Be understandable that, one end of adapter 140 is entered outage 112 by a flange and inner casing and is connected.
Control valve group 150 comprises outer shell combination valve 151 and inner casing combination valve 152, outer shell combination valve 151 enters outage 111 with outer shell and is connected, inner casing combination valve 152 enters outage 112 with inner casing and is connected, and can control feed liquor and the discharge opeing of outer shell 110, inner casing 120.
Be understandable that, outer shell enters outage 111 can be two, and outer shell combination valve 151 also can be two, and enters outage 111 with an outer shell respectively and be connected.
During outer shell 110 work, together with the interior cylinder plug 130 of inner casing 120 and portion within it, in outer shell 110 cylinder bodies, move, at this moment outer shell combination valve 151 feed liquors are opened, discharge opeing closes, and the discharge opeing of inner casing combination valve 152 is opened, feed liquor is closed, interior cylinder plug 130 is positioned at both bottoms of outer cylinder plug of its inner casing 120, and inner casing 120 transfers the pressure on the walking beam and forging of hydraulic press by interior cylinder plug 130.
During inner casing 120 work, inner casing combination valve 152 feed liquors are opened, and discharge opeing is closed, and outer shell 110 does not move, and outer shell combination valve 151 feed liquors are closed, and discharge opeing can have two states according to hydraulic press action demand:
A) hydraulic press moves under large working stroke, and 151 discharge opeings of outer shell combination valve are opened, and inner casing 120 is the bottom in outer shell 110 under the effect of inner casing pressure oil, and inner casing 120 can be done full stroke motion;
When b) hydraulic press does not need the work of large stroke, 151 discharge opeings of outer shell combination valve are closed, any position that inner casing 120 can be in stroke, and inner casing 120 is not done full stroke motion.
Because minimum (pressure of the pressure-loaded prefilling tank) pressure in inner casing 120 can support the weight of inner casing 120, therefore, when interior cylinder plug 130 moves downward, it is motionless that inner casing 120 can rest on present position.
By take over 140 and Sealing 160 outer shell 110 and inner casing 120 are separated into the die cavity in different pressures state separately, under the control of control valve group 150, realized the independent and synchronous motion of interior outer shell, complete pressure or the velocity stages of hydraulic press.
The utility model is compared much smaller with the volume of the hydraulic press of traditional triplex structure, secondly the cylinder body of inner casing 120 is that plunger by outer shell 110 processes, the compound high-voltage oil cylinder like this with said function just alleviates 12% than the quality that is divided into three cylinders, and machining period also reduces a lot.The physical dimension of comparable traditional triplex structure hydraulic press three beams of the physical dimension of top beam of hydraulic machine, walking beam, bottom end rail is few, lightweight for above-mentioned reasons, cost is low.In the middle of top beam of hydraulic machine, place after the utility model cylinder apparatus, the kicker cylinder of hydraulic press also can design in upper beam both sides, has also just reduced the boundary dimension of hydraulic press, has optimized the structural design of main frame.
The utility model cylinder apparatus only needs two circuits and valve group, compare with traditional triplex structure, pipeline and valve group have been reduced, and cylinder and to be divided into the wetted perimeter that three cylinders move in oily medium be different, the wetted perimeter of three cylinders is much bigger, add valve port, the resistance of pipeline makes the local resistance of fast Pressesforging hydraulic system of triplex structure more much bigger than using the fast Pressesforging of the utility model oil cylinder, has increased reactive loss and system heating.
In addition, when fast forging, the outer shell 110 of the utility model cylinder apparatus is motionless, only has inner casing 120 in motion, and the press of triplex structure always to have one or two cylinder be that idle running is reciprocating when work, restricted the raising of the fast forging frequency.
In sum, use the high speed forging hydraulic press of the utility model cylinder apparatus can improve the fast forging frequency 15%, enhance productivity 12%.
But, those of ordinary skill in the art will be appreciated that, above embodiment is only for the utility model is described, and be not used as restriction of the present utility model, as long as within the scope of connotation of the present utility model, to the above embodiment's variation, modification, all will drop within the scope of claims of the present utility model.
Claims (3)
1. a high-voltage oil cylinder, it is characterized in that, comprise outer shell, inner casing as described outer cylinder plug, interior cylinder plug, take over and control valve group, the bottom of described outer shell is provided with that outer shell enters outage and inner casing enters outage, described inner casing enters the center that outage is positioned at outer shell bottom, described inner casing is located in described outer shell, described interior cylinder plug is located in described inner casing, the axial cross section of this interior cylinder plug is U-shaped, which is provided with axial blind hole, one end of described adapter is entered outage with described inner casing and is connected, its the other end is visited and is located in the blind hole of described interior cylinder plug through the bottom of described inner casing, and be provided with Sealing between described adapter and the bottom of described inner casing, described control valve group comprises outer shell combination valve and inner casing combination valve, described outer shell combination valve enters outage with described outer shell and is connected, described inner casing combination valve enters outage with described inner casing and is connected.
2. a kind of high-voltage oil cylinder according to claim 1, is characterized in that, it is two that described outer shell enters outage, and described outer shell combination valve is two, and enters outage with an outer shell respectively and be connected.
3. a kind of high-voltage oil cylinder according to claim 1 and 2, is characterized in that, one end of described adapter is entered outage by a flange with described inner casing and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320642680.8U CN203532402U (en) | 2013-10-17 | 2013-10-17 | High-pressure oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320642680.8U CN203532402U (en) | 2013-10-17 | 2013-10-17 | High-pressure oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532402U true CN203532402U (en) | 2014-04-09 |
Family
ID=50418615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320642680.8U Expired - Lifetime CN203532402U (en) | 2013-10-17 | 2013-10-17 | High-pressure oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498831A (en) * | 2013-10-17 | 2014-01-08 | 上海兰石重工机械有限公司 | Composite type high-pressure oil cylinder device |
-
2013
- 2013-10-17 CN CN201320642680.8U patent/CN203532402U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498831A (en) * | 2013-10-17 | 2014-01-08 | 上海兰石重工机械有限公司 | Composite type high-pressure oil cylinder device |
| CN103498831B (en) * | 2013-10-17 | 2015-12-09 | 上海兰石重工机械有限公司 | Composite type high-pressure oil cylinder device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101823096A (en) | Semi-sliding hydraulic bulging technology of automobile axle housing part and die thereof | |
| CN106393767A (en) | Energy-saving hydraulic press | |
| CN204234644U (en) | Cover cylinder pattern forging hydraulic press | |
| CN105058833A (en) | Numerical control hydraulic machine | |
| CN201052671Y (en) | Die carrier for realizing exact punching on common pressing machine | |
| CN203532402U (en) | High-pressure oil cylinder | |
| CN203170783U (en) | Oil tube end portion thickening machine | |
| CN205588677U (en) | Interior high -pressure forming machine of variable mold clamping force | |
| CN109058196B (en) | Novel energy-saving rapid forging machine hydraulic system and control method thereof | |
| CN201714739U (en) | Composite oil cylinder | |
| CN103498831B (en) | Composite type high-pressure oil cylinder device | |
| CN103302184A (en) | Pressurizing and stamping die | |
| CN103909192B (en) | Multi-ram forging hydraulic extrusion press | |
| CN205112449U (en) | Large -tonnage pillar press | |
| CN204842814U (en) | A from mode complex liquid press for micrite iron core | |
| CN204998014U (en) | Numerical control hydraulic press | |
| CN201552773U (en) | Two-way hole punching press with follow-up matched die force | |
| CN202683796U (en) | Drawing die | |
| CN202971376U (en) | Oil distributing valve for novel ultra-high pressure radial piston pump | |
| CN202318997U (en) | Three-beam, four-upright guard ring bulging oil hydraulic press | |
| CN101758134A (en) | Bidirectional punching press with constantly changing mold clamping force | |
| CN201257491Y (en) | Die forging hammer hydraulic lower ejection device | |
| CN203962542U (en) | The high speed compound oil cylinder that a kind of servovalve drives | |
| CN110370705A (en) | Segmented multiple-pass hydraulic press | |
| CN201632530U (en) | Novel double-motion stretching hydraulic machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |
|
| CX01 | Expiry of patent term |