CN202510454U - Combined hydraulic cylinder with double-acting section - Google Patents
Combined hydraulic cylinder with double-acting section Download PDFInfo
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- CN202510454U CN202510454U CN2012200095864U CN201220009586U CN202510454U CN 202510454 U CN202510454 U CN 202510454U CN 2012200095864 U CN2012200095864 U CN 2012200095864U CN 201220009586 U CN201220009586 U CN 201220009586U CN 202510454 U CN202510454 U CN 202510454U
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Abstract
The utility model discloses a combined hydraulic cylinder with a double-acting section. The combined hydraulic cylinder comprises an intermediate body, a first oil cylinder which is arranged at one end of the intermediate body, and a second oil cylinder which is arranged at the other end of the intermediate body, wherein a hydraulic cavity is formed on the intermediate body, and is communicated with a high-level oil tank through an electrically controlled check valve; the first oil cylinder comprises a first piston rod, a first piston inner cylinder, a first plunger, a first cylinder and a first cylinder inner oil pipe; and the second oil cylinder comprises a second piston rod, a second piston inner cylinder, a second plunger, a second cylinder and a second cylinder inner oil pipe. According to the combined hydraulic cylinder with the double-acting section, inlets and return ports of the oil cylinders are centralizedly arranged on the intermediate body, so that the complete machine is relatively regular and easy to maintain. The hydraulic cavity on the intermediate body is communicated with the high-level oil tank through the electrically controlled check valve; an oil tank is eliminated, so that the cost is saved; and pressure oil directly acts on actuation cylinders, so that the response is quick, and the position and speed can be conveniently and accurately controlled.
Description
Technical field
The utility model relates to the hydraulic system technical field, more particularly, relates to a kind of double-action cross section assembled hydraulic cylinder.
Background technique
It is real that shoot-squeeze molding machine utilizes pressurized air that molding sand is injected the sandbox pretension equably, and then exert pressure and carry out compacting.Commonly used have vertical parting flaskless shoot-squeeze moulding machine and a horizontal parting slip flask shoot-squeeze moulding machine.The vertical parting flaskless shoot-squeeze moulding machine moulding is without sandbox, and molding sand is directly injected the moulding chamber that has template, and institute's sand mold dimensional accuracy of making is high, and because of all there is die cavity on the sandbox two sides, productivity is very high, but core is relatively more difficult down, molding sand quality is required tight.Horizontal parting slip flask shoot-squeeze moulding machine utilizes sandbox to carry out moulding, and sand mold is made back mould assembly drawing, and following core is more convenient, and productivity is high.
The moulding speed that shoot-squeeze molding machine is had relatively high expectations, higher moulding precision, stably the mould assembly performance, stablize adjustable compaction force.Existing execution oil cylinder is used by two oil cylinder combinations; One of them oil cylinder is the speedup oil cylinder; All be that two oil cylinders move at the same time in the modeling process; And complicated heavy cylinder structure and seal ring, cause that the moulding action response lags behind, inertia is big, be not easy to accurate control position and speed, and manufacture cost is high, installation and maintenance are complicated, oil pipe is many and staggered complicated, easy leakage of oil.
Therefore, how a kind of double-action cross section assembled hydraulic cylinder is provided, to reduce manufacture cost.
The model utility content
In view of this, the utility model provides a kind of double-action cross section assembled hydraulic cylinder, to reduce manufacture cost.
For realizing above-mentioned purpose, the utility model provides following technological scheme:
A kind of double-action cross section assembled hydraulic cylinder comprises:
Intermediate offers hydraulic pressure cavity on it, said hydraulic pressure cavity is connected with top petrol tank through electric control one-way valve, and on the direction of said top petrol tank, said electric control one-way valve is on state in said hydraulic pressure cavity;
Be arranged at first oil cylinder of said intermediate one end, said first oil cylinder comprises first piston bar, first piston inner cylinder tube, first plunger, first cylinder barrel and the first cylinder inner oil tube; One end of said first piston bar links to each other with said intermediate, and the other end is connected with first piston, and the inner chamber of said first piston bar communicates with said hydraulic pressure cavity; One end of said first piston inner cylinder tube links to each other with said intermediate, and is connected with first filler opening on the said intermediate, and the other end of said first piston inner cylinder tube links to each other with said first piston; First cylinder barrel sealing is arranged at the outside of said first piston bar, and said first piston has the hole of the inner chamber of the inner chamber that is communicated with said first piston and said first cylinder barrel; The said first cylinder inner oil tube is arranged between said first piston inner cylinder tube and the said first piston bar, and an end is connected with second filler opening on the said intermediate, and the other end is connected with slit between said first piston bar and said first cylinder barrel;
Be arranged at second oil cylinder of the said intermediate the other end, said second oil cylinder comprises second piston rod, the second piston inner cylinder tube, second plunger, second cylinder barrel and the second cylinder inner oil tube; One end of said second piston rod links to each other with said intermediate, and the other end is connected with second piston, and the inner chamber of said second piston rod communicates with said hydraulic pressure cavity; One end of the said second piston inner cylinder tube links to each other with said intermediate, and is connected with the 3rd filler opening on the said intermediate, and the other end of the said second piston inner cylinder tube links to each other with said second piston; Second cylinder barrel sealing is arranged at the outside of said second piston rod, and said second piston has the hole of the inner chamber of the inner chamber that is communicated with said second piston and said second cylinder barrel; The said second cylinder inner oil tube is arranged between said second piston inner cylinder tube and said second piston rod, and an end is connected with the 4th filler opening on the said intermediate, and the other end is connected with slit between said second piston rod and said second cylinder barrel.
Preferably, in the assembled hydraulic cylinder of above-mentioned double-action cross section, the afterbody of said first cylinder barrel and said second cylinder barrel is equipped with the cylinder barrel end cap.
Preferably, in the assembled hydraulic cylinder of above-mentioned double-action cross section, said intermediate is arranged on the base.
Preferably, in the assembled hydraulic cylinder of above-mentioned double-action cross section, the periphery of said first cylinder barrel and said second cylinder barrel is equipped with the cylinder barrel support device.
Preferably, in the assembled hydraulic cylinder of above-mentioned double-action cross section, the head of said first cylinder barrel and said second cylinder barrel is equipped with the sealing cylinder head.
Can find out from above-mentioned technological scheme, the double-action cross section assembled hydraulic cylinder that the utility model provides, oil cylinder advance to answer back centralized arrangement on intermediate, make complete machine more neat, for ease of maintenaince the operation.Hydraulic pressure cavity on the intermediate communicates with top petrol tank via an electric control one-way valve, and the utility model has saved an oil cylinder and practiced thrift cost, and pressure oil acts directly on the action cylinder barrel, makes response fast, is convenient to accurate control position and speed.
Description of drawings
The structural representation of the double-action cross section assembled hydraulic cylinder that Fig. 1 provides for the utility model embodiment.
Embodiment
The utility model discloses a kind of double-action cross section assembled hydraulic cylinder, to reduce manufacture cost.
To combine the accompanying drawing among the utility model embodiment below, the technological scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 1, the structural representation of the double-action cross section assembled hydraulic cylinder that Fig. 1 provides for the utility model embodiment.
The double-action cross section assembled hydraulic cylinder that the utility model provides comprises intermediate 1, first oil cylinder and second oil cylinder.Wherein, offer hydraulic pressure cavity C on the intermediate 1, hydraulic pressure cavity C is connected with top petrol tank 13 through electric control one-way valve 14, and on the direction of top petrol tank 13, electric control one-way valve 14 is on state at hydraulic pressure cavity C.
First oil cylinder is arranged at an end of intermediate 1, and first oil cylinder comprises first piston bar 6, first piston inner cylinder tube 5, first plunger 7, first cylinder barrel 8 and the first cylinder inner oil tube 12; One end of first piston bar 6 links to each other with intermediate 1, and the other end is connected with first piston 10, and the inner chamber of first piston bar 6 communicates with hydraulic pressure cavity C; One end of first piston inner cylinder tube 5 links to each other with intermediate 1, and is connected with the first filler opening B on the intermediate 1, and the other end of first piston inner cylinder tube 5 links to each other with first piston 10; The sealing of first cylinder barrel 8 is arranged at the outside of first piston bar 6, and first piston 10 has the hole of the inner chamber of the inner chamber that is communicated with first piston 10 and first cylinder barrel 8; The first cylinder inner oil tube 12 is arranged between first piston inner cylinder tube 5 and the first piston bar 6, and an end is connected with the second filler opening A on the intermediate 1, and the other end is connected with slit between the first piston bar 6 and first cylinder barrel 8.
Second oil cylinder is arranged at the other end of intermediate 1, the similar of itself and first oil cylinder.Second oil cylinder comprises second piston rod, the second piston inner cylinder tube, second plunger, second cylinder barrel and the second cylinder inner oil tube; One end of second piston rod links to each other with intermediate, and the other end is connected with second piston, and the inner chamber of second piston rod communicates with hydraulic pressure cavity C; One end of the second piston inner cylinder tube links to each other with intermediate, and is connected with the 3rd filler opening D on the intermediate, and the other end of the second piston inner cylinder tube links to each other with second piston; Second cylinder barrel sealing is arranged at the outside of second piston rod, and second piston has the hole of the inner chamber of the inner chamber that is communicated with second piston and second cylinder barrel; The second cylinder inner oil tube is arranged between the second piston inner cylinder tube and second piston rod, and an end is connected with the 4th filler opening E on the intermediate, and the other end is connected with slit between second piston rod and second cylinder barrel.
The double-action cross section assembled hydraulic cylinder that the utility model provides, oil cylinder advance to answer back centralized arrangement on intermediate, make complete machine more neat, for ease of maintenaince the operation.Hydraulic pressure cavity on the intermediate communicates with top petrol tank via an electric control one-way valve, and the utility model has saved an oil cylinder and practiced thrift cost, and pressure oil acts directly on the action cylinder barrel, makes response fast, is convenient to accurate control position and speed.
The intermediate 1 general coaxality tolerance that is connected and guarantees two-piston bar assembly through key and platen 3 with piston rod assembly.The periphery of first cylinder barrel 8 and second cylinder barrel is equipped with cylinder barrel support device 9, and cylinder barrel support device 9 is used for supporting the outer cylinder assembly and adjusts the level and the left and right directions of combined oil cylinder, improves the stability of combined oil cylinder, wherein is provided with seal ring and wear-resisting band.The head of first cylinder barrel 8 and second cylinder barrel is equipped with the sealing cylinder head; Sealing cylinder head 4 is processed by tin bronze; Set inside seal ring and wear-resisting band; The outer ring and the inner ring of piston (first piston 10 and second piston) all are provided with seal ring and wear-resisting band, cooperate with cylinder barrel (first cylinder barrel and second cylinder barrel) and plunger (first plunger 7 and second plunger) respectively.
The afterbody of first cylinder barrel 8 and second cylinder barrel is equipped with cylinder barrel end cap 11, and intermediate 1 is generally positioned on the base.The end of the first piston bar 6 and second piston rod is equipped with piston rod end plate 2.With first oil cylinder is example, and piston rod end plate 2, first piston inner cylinder tube 5, first plunger 7 and first piston 10 form a plunger case, and effective active area is A1=π D3
2/ 4.Sealing cylinder head 4, first cylinder barrel 8 and first piston 10 form a piston cylinder, and doing that effectively area is arranged is A2=π (D1
2-D2
2)/4.Fluid is to the active area A3=π (D1 of end cap in the volume that first plunger 7, first cylinder barrel 8, first piston 10 and cylinder barrel end cap 11 form
2-D3
2)/4.
With first oil cylinder is the working procedure of representative explanation the utility model:
First cylinder barrel 8 is controlling object of the utility model; When hydraulic oil gets into through the second filler opening A; The first filler opening B oil return; Fluid gets into the A2 cross section through the first cylinder inner oil tube, and first cylinder barrel 8 is return (being moved to the left), and sealed volume chamber hydraulic oil is pressed into top petrol tank 13 to hydraulic oil through electronic one-way valve 14; When the first filler opening B oil-feed, the second filler opening A oil return, fluid acts on first plunger 7, and active area is A1, and first cylinder barrel 8 stretches out (moving right), and electric control one-way valve 14 is opened, and top petrol tank 13 hydraulic oil flow into hydraulic pressure cavity C.Because these two cross sections are less, make oil cylinder obtain movement speed faster.When moulding machine needs high compaction force in the compacting operation; The first filler opening B, the 4th filler opening E oil-feed; The second filler opening A, the 3rd filler opening D oil return; Pressure oil makes the first filler opening B be communicated with hydraulic pressure cavity C through squeeze valve, and electric control one-way valve 14 is closed simultaneously, and the effective active area of hydraulic oil is A1+A3=π D1
2/ 4, make piston rod obtain high compaction force.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and other embodiments' difference that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiments shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (5)
1. a double-action cross section assembled hydraulic cylinder is characterized in that, comprising:
Intermediate (1) offers hydraulic pressure cavity (C) on it, said hydraulic pressure cavity (C) is connected with top petrol tank (13) through electric control one-way valve (14), and on the direction of said top petrol tank (13), said electric control one-way valve (14) is on state in said hydraulic pressure cavity (C);
Be arranged at first oil cylinder of said intermediate (1) one end, said first oil cylinder comprises first piston bar (6), first piston inner cylinder tube (5), first plunger (7), first cylinder barrel (8) and the first cylinder inner oil tube (12); One end of said first piston bar (6) links to each other with said intermediate (1), and the other end is connected with first piston (10), and the inner chamber of said first piston bar (6) communicates with said hydraulic pressure cavity (C); One end of said first piston inner cylinder tube (5) links to each other with said intermediate (1), and is connected with first filler opening (B) on the said intermediate (1), and the other end of said first piston inner cylinder tube (5) links to each other with said first piston (10); First cylinder barrel (8) sealing is arranged at the outside of said first piston bar (6), and said first piston (10) has the hole of the inner chamber of the inner chamber that is communicated with said first piston (10) and said first cylinder barrel (8); The said first cylinder inner oil tube (12) is arranged between said first piston inner cylinder tube (5) and the said first piston bar (6); And an end is connected with second filler opening (A) on the said intermediate (1), and the other end is connected with slit between said first piston bar (6) and said first cylinder barrel (8);
Be arranged at second oil cylinder of said intermediate (1) the other end, said second oil cylinder comprises second piston rod, the second piston inner cylinder tube, second plunger, second cylinder barrel and the second cylinder inner oil tube; One end of said second piston rod links to each other with said intermediate, and the other end is connected with second piston, and the inner chamber of said second piston rod communicates with said hydraulic pressure cavity (C); One end of the said second piston inner cylinder tube links to each other with said intermediate, and is connected with the 3rd filler opening (D) on the said intermediate, and the other end of the said second piston inner cylinder tube links to each other with said second piston; Second cylinder barrel sealing is arranged at the outside of said second piston rod, and said second piston has the hole of the inner chamber of the inner chamber that is communicated with said second piston and said second cylinder barrel; The said second cylinder inner oil tube is arranged between said second piston inner cylinder tube and said second piston rod, and an end is connected with the 4th filler opening (E) on the said intermediate, and the other end is connected with slit between said second piston rod and said second cylinder barrel.
2. double-action according to claim 1 cross section assembled hydraulic cylinder is characterized in that the afterbody of said first cylinder barrel (8) and said second cylinder barrel is equipped with the cylinder barrel end cap.
3. double-action according to claim 1 cross section assembled hydraulic cylinder is characterized in that said intermediate (1) is arranged on the base.
4. double-action according to claim 1 cross section assembled hydraulic cylinder is characterized in that the periphery of said first cylinder barrel (8) and said second cylinder barrel is equipped with the cylinder barrel support device.
5. double-action according to claim 1 cross section assembled hydraulic cylinder is characterized in that the head of said first cylinder barrel (8) and said second cylinder barrel is equipped with the sealing cylinder head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200095864U CN202510454U (en) | 2012-01-11 | 2012-01-11 | Combined hydraulic cylinder with double-acting section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200095864U CN202510454U (en) | 2012-01-11 | 2012-01-11 | Combined hydraulic cylinder with double-acting section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202510454U true CN202510454U (en) | 2012-10-31 |
Family
ID=47062944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200095864U Expired - Fee Related CN202510454U (en) | 2012-01-11 | 2012-01-11 | Combined hydraulic cylinder with double-acting section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202510454U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870503A (en) * | 2017-01-19 | 2017-06-20 | 上海交通大学 | The double rod Multifunctional hydraulic devices of many cavity volumes |
| CN108603521A (en) * | 2016-02-16 | 2018-09-28 | Sms集团有限公司 | Synchronized cylinder for continuous pressing equipment |
-
2012
- 2012-01-11 CN CN2012200095864U patent/CN202510454U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108603521A (en) * | 2016-02-16 | 2018-09-28 | Sms集团有限公司 | Synchronized cylinder for continuous pressing equipment |
| CN106870503A (en) * | 2017-01-19 | 2017-06-20 | 上海交通大学 | The double rod Multifunctional hydraulic devices of many cavity volumes |
| CN106870503B (en) * | 2017-01-19 | 2020-01-07 | 上海交通大学 | Multi-cavity double-outlet-rod multifunctional hydraulic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20210111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |