CN202266539U - Double-acting hydraulic damping device - Google Patents
Double-acting hydraulic damping device Download PDFInfo
- Publication number
- CN202266539U CN202266539U CN2011203140072U CN201120314007U CN202266539U CN 202266539 U CN202266539 U CN 202266539U CN 2011203140072 U CN2011203140072 U CN 2011203140072U CN 201120314007 U CN201120314007 U CN 201120314007U CN 202266539 U CN202266539 U CN 202266539U
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- Prior art keywords
- hydraulic cylinder
- piston
- hydraulic
- cavity
- cylinder barrel
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- Expired - Fee Related
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Abstract
The utility model discloses a double-acting hydraulic damping device, belongs to the technical field of mechanical equipment, and in particular relates to a part for a hydraulic cotton packaging machine. An integrated piston is arranged in a hydraulic cylinder barrel of the device; two piston rods are arranged on the left side and the right side of the piston and are extended out of the hydraulic cylinder barrel through a guiding flange; two sealing grooves are formed on the middle part of the piston and are correspondingly provided with two YX sealing rings; the inside of the hydraulic cylinder barrel is partitioned into a left cavity and a right cavity which are provided with a communicating opening respectively; the communicating openings are communicated with each other through a communicating hole; and an adjusting piston is arranged in the communicating hole. The utility model has the advantages that: due to the adoption of the device in the hydraulic cotton packaging machine, inertia can be absorbed to the maximum extent to reduce impact force, a vehicle can be parked stably, and the stability of an action detection signal can be improved, so that the rotating speed of a cotton box is improved by 20 percent; and the device has low manufacturing cost, low maintenance cost and a wide application range, is not provided with easily-damaged parts, can do rotation motion, can be used in the process of doing linear reciprocating motion, is convenient to mount and is suitable for severe environments.
Description
Technical field
The utility model belongs to mechanical equipment technical field, particularly a kind of hydraulic pressure cotton press parts.
Background technique
The hydraulic pressure cotton press is mainly used in loose type of material such as cotton, fiber crops, hair, suede, chemical fibre is pressed into big bag, so that store and transportation.At present, domestic packer with frame structure, double hopper, the big specification bale of cotton, large-tonnage hydraulic system as developing direction.Packer breaks into bag with cotton in the course of the work in a hopper, another case is adorned cotton constantly.When two actions are all accomplished, as power, promote two casees and rotate, carry out two casees transpositions around intermediate rotary shaft by motor or hydraulic jack.Because two casees weight, profile are bigger, and rate request is arranged, and in changeing the case process, can produce huge inertial force.When the commentaries on classics case puts in place, must be able to steadily stop, equipment can proper functioning.Adopted multiple way in the past, as: 1, force to stop, but the collision that produces is too loudly, causes entire machine to rock with the rigidity positioning device; 2, install compression spring device additional and slow down impact, equipment cost is big, has very big rebounding force simultaneously, when changeing case once more, removes the location and is not easy; 3, control motion speed with variable-frequency motor and since frequency when very low power of motor descend, be prone to faults such as parking not in place.In a word, though these methods have certain effect, unstable, damage of components is frequent, and equipment failure is more.
Summary of the invention
The purpose of the utility model is the deficiency that overcomes existing technology, provide a kind of simple in structure, absorption is impacted, noise is low, applied widely, working stability, double-action hydraulic damping device that cost is low.
The technological scheme of the utility model is: an one-piece piston is arranged in hydraulic cylinder; There are two piston rods to pass through guide flange outside hydraulic cylinder about it; The two seals groove is arranged on the intermediate portion piston, and seal groove is interior to adorning two YX seal rings, two cavity volumes about hydraulic cylinder inside is divided into; Two cavity volumes have a connecting port to link to each other through intercommunicating pore respectively, are provided with adjusting plug in the intercommunicating pore; The interior circle of guide flange is equipped with the YX seal ring and is enclosed within on the piston rod, and cylindrical is equipped with the O RunddichtringO and contacts with the hydraulic cylinder inwall, about two outer ends dust ring is housed, clamping bolt is fixed on the hydraulic cylinder right ends with guide flange; Hydraulic cylinder is provided with oil hole and leads in the cavity volume.
The beneficial effect of the utility model: adopt this device, can absorb inertia to greatest extent, reduce impact force, stop steadily, the motion detection signal stabilization improves, and makes hopper change case speed and improves 20%.And low cost of manufacture does not have easily damaged parts, and maintenance cost is low, and is applied widely, and both rotatable motion also can be used under straight reciprocating motion, and is easy for installation, suitable to rugged environment.
Description of drawings
Accompanying drawing 1 is the utility model cross-sectional view.
Accompanying drawing 2 is side view and adjusting plug cut-away section schematic representation.
Embodiment
One-piece piston 6 places in the hydraulic cylinder 5, and hydraulic cylinder 5 inside are divided into left cavity 7 and right cavity 11, to two YX RunddichtringOs 8 are housed, isolate two chambeies and prevents that hydraulic oil from scurrying mutually on the one-piece piston 6 intermediate piston tubes.Hydraulic cylinder 5 is drilled with intercommunicating pore 15 on axial direction, connect two radial communication mouths 14, and left cavity 7 and right cavity 11 are communicated with.Adjusting plug 16 is arranged on the middle part of intercommunicating pore 15, is used to adjust the long-pending size of liquid level.Filling it up with the oil back from oil hole 9 screws with plug screw.About two guide flanges 2 fastening with hydraulic cylinder 5 usefulness clamping bolts 12.Dust ring 1 is equipped with in the outer end of guide flange 2, stops external dust to get into cylinder interior; Circle is equipped with YX RunddichtringO 4 in the guide flange 2, and O RunddichtringO 3 is housed on the cylindrical, prevents that hydraulic oil from overflowing under the situation of high pressure, frequent impact.Guide flange 2 inside and outside circles must have higher concentricity, could protect orthoploid formula piston 6 flexible operations freely.
Working procedure is following: the packer hopper produces huge inertial force, when running into the hydraulic damping device piston rod in rotation process; The hydraulic oil of opposite cavity volume is squeezed, and through the intercommunicating pore on the cylinder barrel wall 15, flows into another chamber; Because intercommunicating pore 15 apertures are little, play damping function, flow receives great restriction; Piston rod can only slowly move, and huge inertia forces the hydraulic fluid pressure in the cylinder barrel to rise, (kinetic energy is converted into the hydraulic pressure ability); The rotational speed of hopper is also lowered, and realizes steadily stopping.When hopper reversed, the pressurized piston rod broke away from hopper, because of oil cylinder two cavity pressures are suitable, can not have a rebound.During the hopper counter-rotating, piston rod is pressed against opposite side again, so returns multiple circulation, makes hopper change case and realizes smooth running.
Claims (1)
1. double-action hydraulic damping device; It is characterized in that: an one-piece piston (6) is arranged in hydraulic cylinder (5); There are two piston rods to arrive outside the hydraulic cylinder (5) about it through guide flange (2); The two seals groove is arranged on the intermediate portion piston, to adorning two YX seal rings (8), hydraulic cylinder (5) inside is divided into left cavity (7) and right cavity (11) in the seal groove; Two cavity volumes have a connecting port (14) to link to each other through intercommunicating pore (15) respectively, are provided with adjusting plug (16) in the intercommunicating pore (15); The interior circle of guide flange (2) is equipped with YX seal ring (4) and is enclosed within on the piston rod; Cylindrical is equipped with O RunddichtringO (3) and contacts with hydraulic cylinder (5) inwall; About two outer ends dust ring (1) is housed, clamping bolt (12) is fixed on hydraulic cylinder (5) right ends with guide flange (2); Hydraulic cylinder (5) is provided with oil hole (9) and leads in the cavity volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203140072U CN202266539U (en) | 2011-08-24 | 2011-08-24 | Double-acting hydraulic damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203140072U CN202266539U (en) | 2011-08-24 | 2011-08-24 | Double-acting hydraulic damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202266539U true CN202266539U (en) | 2012-06-06 |
Family
ID=46157336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203140072U Expired - Fee Related CN202266539U (en) | 2011-08-24 | 2011-08-24 | Double-acting hydraulic damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202266539U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895869A (en) * | 2015-04-27 | 2015-09-09 | 徐工集团工程机械股份有限公司科技分公司 | Buffering module of hydraulic rotation platform |
-
2011
- 2011-08-24 CN CN2011203140072U patent/CN202266539U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895869A (en) * | 2015-04-27 | 2015-09-09 | 徐工集团工程机械股份有限公司科技分公司 | Buffering module of hydraulic rotation platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20120824 |