CN105545873A - Internal differential cylinder structure and injection method thereof - Google Patents
Internal differential cylinder structure and injection method thereof Download PDFInfo
- Publication number
- CN105545873A CN105545873A CN201610041109.9A CN201610041109A CN105545873A CN 105545873 A CN105545873 A CN 105545873A CN 201610041109 A CN201610041109 A CN 201610041109A CN 105545873 A CN105545873 A CN 105545873A
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- differential
- chamber
- hydraulic fluid
- fluid port
- cylinder
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/17—Characterised by the construction of the motor unit of the straight-cylinder type of differential-piston type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1438—Cylinder to end cap assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/615—Filtering means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Actuator (AREA)
Abstract
The invention provides an internal differential cylinder structure and belongs to the technical field of hydraulic transmission. The internal differential cylinder structure comprises an oil cylinder body, a piston rod, a piston and a differential rod; the oil cylinder body comprises an oil cylinder barrel, a front cover and a rear cover, wherein the front cover and the rear cover are detachably installed at the two ends of the oil cylinder barrel respectively, and a cylinder cavity is formed by enclosure of the oil cylinder barrel, the front cover and the rear cover; the piston rod is movably installed in the cylinder cavity and penetrates through the front cover, and the piston rod is hollowed out; the piston is installed at the tail end of the piston rod and divides the cylinder cavity into a front cylinder cavity and a rear cylinder cavity; the rear end of the differential rod is installed on the rear cover, and the front end of the differential rod is arranged in the piston rod and forms a differential cavity. The internal differential cylinder structure has the advantages of being compact in layout, safe and reliable.
Description
Technical field
The invention belongs to hydraulic transmission technology field, relate to a kind of interior differential cylinder structure and injecting method thereof.
Background technique
Need in injection machine in the market to use differential cylinder structure, it is differential injection cylinder structure mainly, as shown in Figure 1, its structure mainly comprises the protecgulum 10 being provided with front hydraulic fluid port 11, be provided with the bonnet 20 of rear hydraulic fluid port 21, cylinder tube 30 between protecgulum 10 and bonnet 20, piston rod 40, the piston 50 in the middle part of piston rod 40 is arranged on by piston unt 100, protecgulum 10, bonnet 20, cylinder tube 30 three forms oil cylinder body and oil cylinder body interior is provided with a chamber, piston rod 40 two ends are stretched out protecgulum 10 and bonnet 20 respectively and are positioned at a chamber in the middle part of piston rod 40, piston 50 is also positioned at a chamber and cylinder chamber is divided into placket chamber 311 and rear cylinder chamber 312, front hydraulic fluid port 11 is connected with placket chamber 311, rear hydraulic fluid port 21 is connected with rear cylinder chamber 312, when differential injection, the active area S2 for injecting in rear cylinder chamber 312 is greater than for the active area S1 injected in placket chamber 311, injection plunger 50 is synchronous under the effect of differential force drives piston rod 40 direction, cylinder chamber 312 motion backward.
Above-mentioned differential cylinder topology layout is unreasonable, and it exists following defect: injecting piston rod 40 stretches out the bonnet 20 of oil cylinder, makes cylinder structure occupation area large and profile is lofty; Piston rod 40 length and diameter are all relatively large, and movement inertia is large and cost is high; The piston rod 40 stretching out oil cylinder bonnet 20 easily damages (security incident), must have corresponding safety measure.
In sum, need to design a kind of compact in design, safe and reliable interior differential cylinder structure.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of compact in design, safe and reliable interior differential cylinder structure.
Object of the present invention realizes by following technical proposal: differential cylinder structure in a kind of, comprising:
Oil cylinder body, comprises cylinder tube and is detachably arranged on protecgulum, the bonnet at cylinder tube two ends respectively, and described cylinder tube, protecgulum, bonnet three surround and form cylinder chamber;
Piston rod, is movably arranged in a chamber and through protecgulum, described piston rod inner is emptied;
Piston, is arranged on piston-rod end, and cylinder chamber is divided into placket chamber and rear cylinder chamber by described piston;
Differential lever, described differential lever rear end is arranged on bonnet, and described differential lever front end to be arranged in piston rod and to form differential chamber.
As a further improvement on the present invention, protecgulum is provided with placket chamber UNICOM and is hydraulic fluid port before the fuel feeding of placket chamber, bonnet is provided with the gas port for cylinder chamber and ambient atmosphere after UNICOM.
Further improve as of the present invention, bonnet is provided with differential chamber UNICOM and is the rear hydraulic fluid port of differential chamber fuel feeding, described rear hydraulic fluid port and front hydraulic fluid port UNICOM, offer the central through bore for hydraulic fluid port after UNICOM and differential chamber in the middle part of described differential lever.
An injecting method for interior differential cylinder structure, during non-differential injection, described front hydraulic fluid port cut-in pressure oil, described rear hydraulic fluid port connects oil return, and described gas port connects air, and piston related piston rod under the difference force effect of both sides moves to bonnet direction; During differential injection, described front hydraulic fluid port and rear hydraulic fluid port be cut-in pressure oil simultaneously, active area S1 now for injecting in placket chamber is greater than the active area S3 for injecting in differential chamber, piston related piston rod under differential force effect moves to bonnet direction, and the oil subsidy that rear hydraulic fluid port draws off is filled with front hydraulic fluid port.
As of the present invention another improve, described rear hydraulic fluid port, gas port divide and are listed in differential lever both sides, and described front hydraulic fluid port is arranged on differential lever side and arranges with gas port homonymy.
Further improve as of the present invention, described differential lever front end end is smooth is provided with the differential end face facing piston rod inside bottom, described differential lever front end rearward position be provided with around its axis arrange domatic, between described domatic and piston rod inner side surface, there is gap, and to be domaticly connected with differential end face by junction surface, the acting surface for injecting in described differential end face and the differential chamber of domatic formation.
Further improve as of the present invention, described piston rod rear end end integral type is provided with annular protrusion, described piston arranges ringwise and is closely coated on outside annular protrusion, both described piston and annular protrusion face the end face of protecgulum, and these two end faces form the acting surface for injecting in placket chambeies.
Further improve as of the present invention, the air filter arranged upward is detachably installed in described gas port.
Further improve as of the present invention, described differential lever rear end end integral type is provided with installation projection and central through bore passes installation projection and is connected with rear hydraulic fluid port, described installation projection and differential lever form T-shaped structure, and installation projection snugly fits in the middle part of bonnet.
Based on technique scheme, the embodiment of the present invention at least can produce following technique effect: integral structure layout is compact, during work, differential lever is set to be built in a chamber, move towards bonnet direction (that is rear cylinder cavity direction) under the difference force that piston rod can be formed in each chamber or differential force effect, and piston rod rear end is positioned at a chamber all the time, there will not be the situation of stretching out bonnet, safety problem can not be produced, safe and reliable during use, and oil cylinder profile and installing space are not almost affected, make cylinder structure applied widely; Piston rod length and diameter are all relatively little and coordinate with differential lever closely, and its movement inertia is little, reduces cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, wherein:
Fig. 1 is the structural representation of differential cylinder structure in prior art.
Fig. 2 is the structural representation of a preferred embodiment of the present invention.
In figure, 10, protecgulum; 11, front hydraulic fluid port; 20, bonnet; 21, rear hydraulic fluid port; 22, gas port; 30, cylinder tube; 311, placket chamber; 312, rear cylinder chamber; 40, piston rod; 42, differential chamber; 43, annular protrusion; 50, piston; 60, differential lever; 61, central through bore; 62, differential end face; 63, domatic; 64, junction surface; 65, projection is installed; 100, piston unt.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technological scheme of the present invention is further described, but the present invention be not limited to these embodiments.
The present invention protects a kind of interior differential cylinder structure, and differential injection cylinder structure in especially a kind of, it is applicable in injection machine, is also applicable in other application apparatus outside injection machine.
Existing differential cylinder topology layout is unreasonable, and its injecting piston rod 40 stretches out the bonnet 20 of oil cylinder, makes cylinder structure occupation area large and profile is lofty; Piston rod 40 length and diameter are all relatively large, and movement inertia is large and cost is high; The piston rod 40 stretching out oil cylinder bonnet 20 easily causes security incident, must have corresponding safety measure.Therefore, it is necessary for designing a kind of relatively reasonably interior differential cylinder structure.
Below in conjunction with the elaboration that Fig. 2 carries out specifically to technological scheme provided by the invention.
As shown in Figure 2, in this, differential cylinder structure comprises:
Oil cylinder body, comprises cylinder tube 30 and is detachably arranged on protecgulum 10, the bonnet 20 at cylinder tube 30 two ends respectively, and cylinder tube 30, protecgulum 10, bonnet 20 three surround and form cylinder chamber;
Piston rod 40, is movably arranged in a chamber and through protecgulum 10, piston rod 40 inside is emptied;
Piston 50, is arranged on piston rod 40 rear end end, and cylinder chamber is divided into placket chamber 311 and rear cylinder chamber 312 by piston 50;
Differential lever 60, differential lever 60 rear end is arranged on bonnet 20, and differential lever 60 front end to be arranged in piston rod 40 and to form differential chamber 42, and can be formed towards the differential force of bonnet 20 between differential chamber 42 and placket chamber 311.
In the present invention, above-mentioned cylinder structure is injection cylinder structure, its working state comprises non-differential injection and differential injection, cylinder tube 30, protecgulum 10, bonnet 20 three be detachable to be installed together and to form the base structure of oil cylinder, easy for installation and be convenient to safeguard, and improve space availability ratio, make cylinder structure occupation area less.
In this, differential cylinder structure in an initial condition, integral structure layout is compact, the oil circuit in differential chamber 42 and placket chamber 311 adopts differential connection, during work, differential lever 60 is set to be built in a chamber, move towards bonnet 20 direction (that is rear direction, cylinder chamber 312) under the difference force that piston rod 40 can be formed in each chamber or differential force effect, and piston rod 40 rear end is positioned at a chamber all the time, there will not be the situation of stretching out bonnet 20, safety problem can not be produced, safe and reliable, and oil cylinder profile and installing space are not almost affected, make cylinder structure applied widely.
In addition, piston rod 40 length is all relatively little with diameter and coordinate closely with differential lever 60, and its movement inertia is little, reduces cost.
For making piston 50 reliable in action, smooth and easy, the reliability of raising work and Security, preferably, protecgulum 10 is provided with placket chamber 311 UNICOM and is hydraulic fluid port 11 before the fuel feeding of placket chamber 311, bonnet 20 is provided with the gas port 22 of cylinder chamber 312 and ambient atmosphere after for UNICOM, and can be formed towards the difference force of bonnet 20 between cylinder chamber 312 and placket chamber 311 afterwards.
When non-differential injection, gas port 22 connects air, formed between rear cylinder chamber 312 and placket chamber 311 towards the difference force of bonnet 20, also formed towards the difference force of bonnet 20 between differential chamber 42 and placket chamber 311, injection plunger 50 drives piston rod 40 to move to bonnet 20 under difference force effect; When differential injection, can be formed towards the differential force of bonnet 20 between differential chamber 42 and placket chamber 311, injection plunger 50 drives piston rod 40 to move to bonnet 20 under differential force effect.
Further, for making differential cylinder structure work in this more safe and reliable and improving piston 50 movement velocity, preferably be provided with on bonnet 20 with differential chamber 42 UNICOM and be the rear hydraulic fluid port 21 of differential chamber 42 fuel feeding, rear hydraulic fluid port 21 and front hydraulic fluid port 11 UNICOM, and the central through bore 61 offered in the middle part of differential lever 60 for hydraulic fluid port after UNICOM 21 and differential chamber 42, oil circuit is carried more smooth and easy, efficient.
Due to front hydraulic fluid port 11 and rear hydraulic fluid port 21 UNICOM, the oil subsidy that rear hydraulic fluid port 21 draws off is filled with front hydraulic fluid port 11, and piston 50 movement velocity is promoted.
The invention also discloses the injecting method of above-mentioned interior differential cylinder structure, concrete, during non-differential injection, front hydraulic fluid port 11 cut-in pressure oil, rear hydraulic fluid port 21 connects oil return, gas port 22 connects air, piston 50 related piston rod 40 under the difference force effect of both sides moves to bonnet 20 direction, during differential injection, front hydraulic fluid port 11 and rear hydraulic fluid port 21 be cut-in pressure oil simultaneously, now be greater than the active area S3 for injecting in differential chamber 42 for the active area S1 injected in placket chamber 311, piston 50 related piston rod 40 under differential force effect moves to bonnet 20 direction.
Closely cooperate for making differential lever 60 and piston rod 40, further preferably, the circumferential lateral surface of differential lever 60 and the inner side surface of piston rod 40 are close to setting, and be that differential lever 60 front-end face amasss towards the end face surface of piston rod 40 inside bottom for the active area S3 injected in differential chamber 42, therefore, differential chamber 42 is interior is the end face of differential lever 60 front-end face towards piston rod 40 inside bottom for the acting surface injected.
Preferred or the optional mode of execution as one, rear hydraulic fluid port 21, gas port 22 points are listed in differential lever 60 both sides, and front hydraulic fluid port 11 is arranged on differential lever 60 side and arranges with gas port 22 homonymy, and the shape of front hydraulic fluid port 11, gas port 22, rear hydraulic fluid port 21 is all set to L shape.
That is to say, front hydraulic fluid port 11 and rear hydraulic fluid port 21 are in topology layout one on the other and front hydraulic fluid port 11 is positioned at the oblique upper of rear hydraulic fluid port 21, gas port 22 and rear hydraulic fluid port 21 are also topology layout one on the other and preferably gas port 22 is positioned at directly over rear hydraulic fluid port 21, hydraulic fluid port and the gas port 22 of said structure layout is adopted in the present invention, oil circuit is made to lead to oil quicker, smooth and easy, front hydraulic fluid port 11 fluid when oil-feed can accelerate to enter in placket chamber 311 under Gravitative Loads, in like manner, rear hydraulic fluid port 21 fluid when oil return can accelerate to exit differential chamber 42 under Gravitative Loads, the reliability of raising work, jigger lifting piston 50 movement velocity.
Coordinate tightr for making differential lever 60 with piston rod 40 frock, and ensure the stationarity that differential force transmits, further preferably, differential lever 60 front end end is smooth is provided with the differential end face 62 facing piston rod 40 inside bottom, differential lever 60 front end rearward position is provided with arrange around its axis domatic 63, between domatic 63 and piston rod 40 inner side surface, there is gap, and domatic 63 are connected with differential end face 62 by junction surface 64, differential end face 62 and domatic 63 constitutes the acting surface for injecting in differential chamber 42.
For making piston 50, piston rod 40 and placket chamber 311 closely cooperate, again further preferably, piston rod 40 rear end end integral type is provided with annular protrusion 43, piston 50 arranges ringwise and is closely coated on outside annular protrusion 43, both piston 50 and annular protrusion 43 face the end face of protecgulum 10, and be that the end face surface that piston 50 and piston rod 40 rear end projecting portion face protecgulum 10 is amassed for the active area S1 injected in placket chamber 311, therefore, above-mentioned piston 50 faces end face that the end face of protecgulum 10 and annular protrusion 43 face protecgulum 10 and forms acting surface for injecting in placket chamber 311.
Preferably, the air filter arranged detachably is installed upward in gas port 22, makes gas port 22 reliable operation, eliminate the impurity in air, piston 50 is moved more smooth and easy, improve the working life of equipment.
In the present invention, differential lever 60 is relative fixing with the bonnet 20 of oil cylinder, the oil in differential chamber 42 realizes turnover by bonnet 20 and differential lever 60, more steady after installing for making differential lever 60, preferred differential lever 60 rear end end integral type is provided with installation projection 65 and central through bore 61 passes installation projection 65 and is connected with rear hydraulic fluid port 21, projection 65 is installed and forms T-shaped structure with differential lever 60, and installation projection 65 snugly fits in the middle part of bonnet 20.Such topology layout can make differential lever 60 lock onto bonnet 20, ensures the working efficiency of overall cylinder structure.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (9)
1. a differential cylinder structure in, is characterized in that: comprising:
Oil cylinder body, comprises cylinder tube and is detachably arranged on protecgulum, the bonnet at cylinder tube two ends respectively, and described cylinder tube, protecgulum, bonnet three surround and form cylinder chamber;
Piston rod, is movably arranged in a chamber and through protecgulum, described piston rod inner is emptied;
Piston, is arranged on piston-rod end, and cylinder chamber is divided into placket chamber and rear cylinder chamber by described piston;
Differential lever, described differential lever rear end is arranged on bonnet, and described differential lever front end to be arranged in piston rod and to form differential chamber.
2. differential cylinder structure in one according to claim 1, is characterized in that: be provided with on protecgulum with placket chamber UNICOM and be hydraulic fluid port before the fuel feeding of placket chamber, and bonnet is provided with the gas port for cylinder chamber and ambient atmosphere after UNICOM.
3. differential cylinder structure in one according to claim 2, it is characterized in that: be provided with on bonnet with differential chamber UNICOM and be the rear hydraulic fluid port of differential chamber fuel feeding, described rear hydraulic fluid port and front hydraulic fluid port UNICOM, offer the central through bore for hydraulic fluid port after UNICOM and differential chamber in the middle part of described differential lever.
4. differential cylinder structure in one according to claim 3, is characterized in that: described rear hydraulic fluid port, gas port divide and be listed in differential lever both sides, and described front hydraulic fluid port is arranged on differential lever side and arranges with gas port homonymy.
5. differential cylinder structure in the one according to claim 3 or 4, it is characterized in that: described differential lever front end end is smooth is provided with the differential end face facing piston rod inside bottom, described differential lever front end rearward position be provided with around its axis arrange domatic, between described domatic and piston rod inner side surface, there is gap, and to be domaticly connected with differential end face by junction surface, the acting surface for injecting in described differential end face and the differential chamber of domatic formation.
6. differential cylinder structure in the one according to claim 3 or 4, it is characterized in that: described piston rod rear end end integral type is provided with annular protrusion, described piston arranges ringwise and is closely coated on outside annular protrusion, both described piston and annular protrusion face the end face of protecgulum, and these two end faces form the acting surface for injecting in placket chambeies.
7. differential cylinder structure in the one according to Claims 2 or 3 or 4, is characterized in that: be detachably provided with the air filter arranged in described gas port upward.
8. differential cylinder structure in the one according to claim 3 or 4, it is characterized in that: described differential lever rear end end integral type is provided with installation projection and central through bore passes installation projection and is connected with rear hydraulic fluid port, described installation projection and differential lever form T-shaped structure, and installation projection snugly fits in the middle part of bonnet.
9. in, an injecting method for differential cylinder structure, is characterized in that, during non-differential injection, described front hydraulic fluid port cut-in pressure oil, described rear hydraulic fluid port connects oil return, and described gas port connects air, and piston related piston rod under the difference force effect of both sides moves to bonnet direction; During differential injection, described front hydraulic fluid port and rear hydraulic fluid port be cut-in pressure oil simultaneously, active area S1 now for injecting in placket chamber is greater than the active area S3 for injecting in differential chamber, piston related piston rod under differential force effect moves to bonnet direction, and the oil subsidy that rear hydraulic fluid port draws off is filled with front hydraulic fluid port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610041109.9A CN105545873A (en) | 2016-01-21 | 2016-01-21 | Internal differential cylinder structure and injection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610041109.9A CN105545873A (en) | 2016-01-21 | 2016-01-21 | Internal differential cylinder structure and injection method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105545873A true CN105545873A (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610041109.9A Pending CN105545873A (en) | 2016-01-21 | 2016-01-21 | Internal differential cylinder structure and injection method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN105545873A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825676A (en) * | 2017-12-05 | 2018-03-23 | 西诺控股集团有限公司 | The split type hollow injection mechanism of injection machine |
| CN108223488A (en) * | 2016-12-21 | 2018-06-29 | 精工电子有限公司 | Fluid pressure cylinder |
| CN112242776A (en) * | 2020-09-29 | 2021-01-19 | 燕山大学 | Hydraulic differential power-assisted electric cylinder with energy storage in cylinder |
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| US3401604A (en) * | 1967-05-17 | 1968-09-17 | Ind Specialties Inc | Differential area gas cylinder |
| CN202690578U (en) * | 2012-07-25 | 2013-01-23 | 浙江华昌液压机械有限公司 | Rapid oil cylinder |
| CN102937124A (en) * | 2012-12-03 | 2013-02-20 | 王广生 | Rapid hydraulic oil cylinder |
| CN202946472U (en) * | 2012-08-30 | 2013-05-22 | 中国地质科学院勘探技术研究所 | Small-flow fast-moving oil cylinder |
| CN205533533U (en) * | 2016-01-21 | 2016-08-31 | 海天塑机集团有限公司 | Interior differential cylinder structure |
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2016
- 2016-01-21 CN CN201610041109.9A patent/CN105545873A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2703558A (en) * | 1951-08-30 | 1955-03-08 | Modern Products Inc | Pressure return cylinder and piston unit |
| US3401604A (en) * | 1967-05-17 | 1968-09-17 | Ind Specialties Inc | Differential area gas cylinder |
| CN202690578U (en) * | 2012-07-25 | 2013-01-23 | 浙江华昌液压机械有限公司 | Rapid oil cylinder |
| CN202946472U (en) * | 2012-08-30 | 2013-05-22 | 中国地质科学院勘探技术研究所 | Small-flow fast-moving oil cylinder |
| CN102937124A (en) * | 2012-12-03 | 2013-02-20 | 王广生 | Rapid hydraulic oil cylinder |
| CN205533533U (en) * | 2016-01-21 | 2016-08-31 | 海天塑机集团有限公司 | Interior differential cylinder structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223488A (en) * | 2016-12-21 | 2018-06-29 | 精工电子有限公司 | Fluid pressure cylinder |
| CN108223488B (en) * | 2016-12-21 | 2020-09-18 | 精工电子有限公司 | Fluid pressure cylinder |
| CN107825676A (en) * | 2017-12-05 | 2018-03-23 | 西诺控股集团有限公司 | The split type hollow injection mechanism of injection machine |
| CN112242776A (en) * | 2020-09-29 | 2021-01-19 | 燕山大学 | Hydraulic differential power-assisted electric cylinder with energy storage in cylinder |
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Application publication date: 20160504 |
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