CN201080608Y - Extruding and expanding disk supporting machine - Google Patents
Extruding and expanding disk supporting machine Download PDFInfo
- Publication number
- CN201080608Y CN201080608Y CNU2007201732040U CN200720173204U CN201080608Y CN 201080608 Y CN201080608 Y CN 201080608Y CN U2007201732040 U CNU2007201732040 U CN U2007201732040U CN 200720173204 U CN200720173204 U CN 200720173204U CN 201080608 Y CN201080608 Y CN 201080608Y
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- extruding
- hydraulic cylinder
- piston
- oil pocket
- branch tray
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Abstract
The utility model discloses an extruder which can extrude a bearing disk hole whose diameter is 1700mm to 2000mm in foundation treatment. The utility model includes a machine body, a bearing disk hole molding mechanism arranged in the machine body and a hydraulic cylinder. The bearing disk hole molding mechanism is provided with two groups of arch arms which are symmetrically arranged in axial direction, wherein, one end of each arch arm is hinged with one end of the machine body and the other end of each arch is driven by the hydraulic cylinder which is arranged on the other end of the machine body. Each group of arch arms is formed by a pair of mutually hinged support arms, wherein, the maximum distance between a hinge part of one pair of support arms of one arch arm group and a hinge part of the other pair of support arms of the other arch arm group forms the maximum extruding distance D1 of the bearing disk hole molding mechanism; the maximum extruding distance D1 and the outer diameter D2 of the hydraulic cylinder meet the following requirement: D1/D2 equals to the result obtained after 0.225 plus/minus alpha, with the deviation alpha less than or equal to the result obtained after 0.225 times 0.1. Through the maximum extruding distance D1 and the size of the outer diameter D2 of the hydraulic cylinder, the utility model provides an extruder which can improve the extruding work efficiency.
Description
Technical field
The utility model relates to a kind of equipment that forms Foundation Design with stake, and particularly a kind of can squeezed diameter be the extruding-enlarging branch tray machine of the force-bearing disc hole of 1700mm to 2000mm in ground is handled.
Background technology
In the existing basic engineering construction, the method that formation has the stake of load dish is: at first form pile body hole by auger cutting soil body in the basis, then extruding-enlarging branch tray machine is lowered into the appropriate location in a hole, the soil body around the stake hole is applied lateral compression power and the space of extruding dish type in the pile body hole side by the force-bearing disc hole builder, can a plurality of such disc space be set along the pile body hole vertical direction, this side has the stake that forms behind the perfusion concrete in the disc space stake hole and is called as compacted bearing disk pile, compare common filling pile, compacted bearing disk pile not only can increase substantially the supporting capacity of pile foundation, and saves constructional materials and reduce engineering quantity about 50% in construction.
The structure of this extruding-enlarging branch tray machine mainly comprises force-bearing disc hole builder and hydraulic cylinder, the force-bearing disc hole builder has pressure head and the two group bow pressing arms hinged with pressure head, two groups of bow pressing arms are along vertical symmetric arrangement, every group of bow pressing arm is made of two support arms up and down that are hinged, hydraulic cylinder moves along vertical by promoting pressure head, thereby it is protruding to promote two groups of bow pressing arms, so that the soil body around the extruding pile body hole forms disc space.
The structure of the hydraulic cylinder that generally uses in the existing extruding-enlarging branch tray machine is: comprise cylinder body, a piston component that moves back and forth is set in the cylinder body, comprise piston rod and the piston that is fixedly mounted on the piston rod, piston will be separated into former and later two chambers in the cylinder body, when rear chamber's oil-feed, when front chamber is fuel-displaced, the promotion piston forward moves, thereby promotes piston rod reach, thrust output; When front chamber's oil-feed and rear chamber when fuel-displaced promotes piston to move backward, be withdrawn in the cylinder body thereby promote piston rod.
The problem that this structure exists is: the thrust of hydraulic cylinder output is subjected to the restriction of hydraulic system pressure, runs into hard in construction or during soil property that viscosity is bigger, can't realize squeezed construction because resistance is excessive, has limited the application of extruding-enlarging branch tray machine; Because squeezed power is limited, makes the length of squeezed arm be restricted, and is unfavorable for increasing disk track and effective bearing area, thereby has limited the supporting capacity of compacted bearing disk pile.
Therefore the squeezed distance and the hydraulic cylinder external diameter of force-bearing disc hole builder are the people's attention points, people wish that the hydraulic cylinder external diameter is the smaller the better on the one hand, can put into the littler pile body hole of diameter so that make extruding-enlarging branch tray machine, thereby reduce the bore operation amount of auger, wish again that on the other hand squeezed distance performs better and better, so that the bigger force-bearing disc hole of squeezed diameter.
As mentioned above, because the thrust of hydraulic cylinder output is subjected to the restriction of hydraulic cylinder size (diameter), therefore can not satisfy minor diameter hydraulic cylinder and big squeezed requirement simultaneously apart from this two aspect, therefore trade off to obtain the preferable ratio of hydraulic cylinder diameter and squeezed distance, will satisfy the requirement of above-mentioned hydraulic cylinder diameter and squeezed distance to greatest extent, thereby improve the operating efficiency of extruding-enlarging branch tray machine.
Summary of the invention
The purpose of this utility model provides a kind of extruding-enlarging branch tray machine of making according to the preferable ratio of hydraulic cylinder diameter and maximum squeezed distance, improves the operating efficiency of this extruding-enlarging branch tray machine thus.
Above-mentioned purpose of the present utility model is achieved in that a kind of extruding-enlarging branch tray machine, comprises fuselage, is installed in force-bearing disc hole builder and hydraulic cylinder in the fuselage, it is characterized in that:
The force-bearing disc hole builder has symmetrically arranged vertically two groups of bow pressing arms, and an end and fuselage one end of two groups of bow pressing arms are hinged, and its other end is by the cylinder pushes that is arranged on the fuselage other end, and every group of bow pressing arm is hinged by a pair of support arm and forms;
Wherein, another of the articulated section of a pair of support arm of described one group of bow pressing arm and another group bow pressing arm is to the maximum squeezed distance D 1 of the formation of the ultimate range between the articulated section of support arm force-bearing disc hole builder, and the squeezed distance D 1 of this maximum satisfies following formula with the outer diameter D 2 of hydraulic cylinder:
Wherein, 0.225≤A≤0.25, deviation α≤0.1A.
For can squeezed diameter being the extruding-enlarging branch tray machine of the force-bearing disc hole of 2000mm, the squeezed distance D 1 of described maximum be between 2000mm ± 200mm; The outer diameter D 2 of described hydraulic cylinder (20) is between 450mm ± 45mm; And the inside diameter D 3 of described hydraulic cylinder (20) is between 380mm ± 38mm.
For can squeezed diameter being the extruding-enlarging branch tray machine of the force-bearing disc hole of 1700mm, the squeezed distance D 1 of described maximum be between 1700mm ± 170mm; The outer diameter D 2 of described hydraulic cylinder (20) is between 426mm ± 42mm; And the inside diameter D 3 of described hydraulic cylinder (20) is between 360mm ± 36mm.
In an embodiment of the present utility model, described hydraulic cylinder is the normal hydraulic oil cylinder.
In another embodiment of the present utility model, described hydraulic cylinder is a pressurizing cylinder, and it comprises: cylinder body and can be at the cylinder body axis to the first stage piston assembly that moves back and forth; And the second piston assembly that moves back and forth of first stage piston assembly relatively, the piston rod of second piston assembly passes the piston of first stage piston assembly.
Wherein, described first stage piston assembly has the first main oil pocket and the second main oil pocket, and described second piston assembly has respectively the first secondary oil pocket and the second secondary oil pocket that links to each other with the second main oil pocket with the first main oil pocket.
Wherein, link to each other by the oil transportation road that is arranged in the first piston assembly between the described first main oil pocket and the described first secondary oil pocket, link to each other by the oil transportation road that is arranged in second piston component between the described second main oil pocket and the described second secondary oil pocket.
The hinged pressure head of the described other end of every group of bow pressing arm of the present utility model, described pressure head links to each other with the first piston bar so that by described first piston bar move back and forth the promotion pressure head, extend laterally to the fuselage outside thereby promote bow pressing arm;
Wherein, described pressure head side is provided with slide block, contacts with the inner surface of fuselage so that pressure head is being led by described slide block;
Wherein, described pressure head links to each other with described first piston bar by bearing pin.
The utility model extruding-enlarging branch tray machine improves outside the operating efficiency of extruding-enlarging branch tray machine except having by selecting the preferable ratio of hydraulic cylinder diameter and maximum squeezed distance for use, also has the following advantages:
The employed boosting oil cylinder of the utility model has been set up one group of new piston component or member in the inside of original one group of piston component or member, increased the lifting surface area of first piston assembly by new piston component, its lifting surface area is substantially equal to big piston area and valve piston area sum, therefore under the hydraulic cylinder appearance and size situation identical with hydraulic system pressure, can significantly improve the thrust of hydraulic cylinder by the output of first piston assembly, avoided in construction, running into hard or during soil property that viscosity is bigger, make extruding-enlarging branch tray machine can't realize the problem of squeezed construction owing to resistance is excessive; Therefore avoided owing to the problem that the limited length that causes squeezed arm of squeezed power is restricted can increase load dish disk track and effective bearing area by improving the length of squeezed arm, thereby significantly improve the supporting capacity of compacted bearing disk pile.
Brief Description Of Drawings
Fig. 1 is the structural representation of the utility model extruding-enlarging branch tray machine;
Fig. 2 is the longitudinal sectional view of boosting oil cylinder in the utility model extruding-enlarging branch tray machine, and wherein the big piston bar is in the state that is recovered to cylinder interior.
Description of reference numerals: 1, big piston bar; 2, big fairlead; 3, valve piston; 4, small piston rod; 5, cylinder body; 6, little fairlead; 7, big piston ante-chamber; 8, big piston back cavity; 9, valve piston ante-chamber; 10, the first oil transportation road; 11, valve piston back cavity; 12, big piston bar main part; 13, the second oil transportation road; First segmentation in 13a, the second oil transportation road; Second segmentation in 13b, the second oil transportation road; 14, big piston; 15, cylinder cap; 16, big piston bar connecting portion; 17, the turnover oilhole of big piston back cavity; 18, the turnover oilhole of big piston ante-chamber; 20, boosting oil cylinder; 21, pressure head; 22, slide block; 23, bearing pin; 24, fuselage; 25, first bow pressing arm; 26, second bow pressing arm.
The specific embodiment
Fig. 1 is the structural representation of the utility model extruding-enlarging branch tray machine, and the structure and the course of work thereof of this extruding-enlarging branch tray machine of the utility model is described with reference to Fig. 1.
The utility model extruding-enlarging branch tray machine comprises fuselage 24, force-bearing disc hole builder and is fixed on fuselage 24 right-hand members and to the boosting oil cylinder 20 of force-bearing disc hole builder applied thrust.
The force-bearing disc hole builder has symmetrically arranged vertically two groups of bow pressing arms, one end and fuselage one end of two groups of bow pressing arms are hinged, its other end is by the cylinder pushes that is arranged on the fuselage other end, and every group of bow pressing arm is hinged by a pair of support arm 25,26 or 25`, 26` and forms;
Wherein, another of the articulated section of a pair of support arm 25,26 of described one group of bow pressing arm and another group bow pressing arm is to the maximum squeezed distance D 1 of the formation of the ultimate range between the articulated section of support arm 25`, 26` force-bearing disc hole builder, and the squeezed distance D 1 of this maximum satisfies following formula with the outer diameter D 2 of hydraulic cylinder 20:
Wherein, 0.225≤A≤0.25, deviation α≤0.1A.
In first embodiment, promptly in the extruding-enlarging branch tray machine of force-bearing disc hole that can squeezed diameter be 2000mm, the squeezed distance D 1 of described maximum nominal is 2000mm, considers that actual deviation can not surpass 10%, and therefore maximum squeezed distance is between 2000mm ± 200mm; The nominal outside diameter D2 of described hydraulic cylinder 20 is 450mm, because deviation is not more than 10%, so hydraulic cylinder outer diameter D 2 is between 450mm ± 45mm.In fact, above-mentioned
About deviation α≤0.1 * A=0.225 * 0.1, then be to consider in actual manufacturing deviation to occur, wherein this deviation α satisfies compromise requirement equally.
In addition, in first embodiment, the nominal inside diameter D3 of hydraulic cylinder 20 is 380mm, consider that actual deviation can be greater than 10%, so hydraulic cylinder inside diameter D 3 is between 380mm ± 38mm.
In a second embodiment, promptly in the extruding-enlarging branch tray machine of force-bearing disc hole that can squeezed diameter be 1700mm, the squeezed distance D 1 of maximum nominal is 1700mm, considers that actual deviation can not surpass 10%, and therefore maximum squeezed distance is between 1700mm ± 170mm; The nominal outside diameter D2 of described hydraulic cylinder 20 is 426mm, because actual deviation is not more than 10%, so hydraulic cylinder outer diameter D 2 is between 426mm ± 42mm.In fact, above-mentioned
About deviation α≤0.1A=0.25 * 0.1, then be to consider in actual manufacturing deviation to occur, wherein this deviation α satisfies compromise requirement equally.
In addition, in a second embodiment, the nominal inside diameter D3 of hydraulic cylinder 20 is 360mm, because actual deviation is not more than 10%, so hydraulic cylinder inside diameter D 3 is between 360mm ± 36mm.
In above-mentioned first and second embodiment, described fuselage 24 is cylindric, the force-bearing disc hole builder is placed in fuselage 24 inside of extruding and expanding machine, comprise the two symmetrical groups bow pressing arm vertically is set, every group of bow pressing arm comprises first pressure arm 25 and second bow pressing arm 26 of the mutual hinge of an end, the other end of first bow pressing arm 25 and pressure head 21 are hinged, and the other end of second bow pressing arm 26 is fixed in the left end of fuselage 24.When extruding and expanding machine was not worked, first, second bow pressing arm 25,26 was in the position of regaining in the fuselage 24, shown in solid line among Fig. 1.
The first piston bar connecting portion 16 of boosting oil cylinder 20 has protuberance, the protuberance of connecting portion 16 is established and axial vertical axis hole, by the bearing pin 23 that passes axis hole it is linked to each other with the pressure head 21 of force-bearing disc hole builder, by screw slide block 22 is installed on the pressure head 21, when first piston bar 1 moves back and forth and when driving pressure head and moving, slide block 22 slides along the inwall of fuselage 24 right-hand members.
During construction, at first in foundation soil body, get out a hole by drilling equipment, then with extruding-enlarging branch tray machine (left end down, right-hand member is in a last hole of vertically putting into.When by oil pump when big piston back cavity 8 and valve piston back cavity 11 are pressed into oil, big piston ante-chamber 7 and valve piston ante-chamber 9 are fuel-displaced, first piston bar 1 is in big piston back cavity 8 and valve piston back cavity 11 under the oil pressure acting in conjunction, vertically move down, thereby promote two groups of first, second bow pressing arms 25,26 to the outside extrusion of fuselage, be in the position shown in Fig. 1 dotted line, thereby the sidepiece in the plumb pile hole forms load dish slotted eye.In the foundation soil body of stake hole sidepiece, form after the load dish slotted eye, to switch to by reversal valve and to make oil pump to big piston ante-chamber 7 fuel feeding, 7 oil-feeds of big piston ante-chamber, first oil transportation road 10 oil-feeds of valve piston ante-chamber 9 by communicating with big piston ante-chamber 7, big piston back cavity 8 and by the second oil transportation road 13a, the valve piston back cavity 11 that 13b communicates with big piston back cavity 8 is fuel-displaced, make first piston bar 1 in big piston ante-chamber 7 and valve piston ante-chamber 9 under the oil pressure acting in conjunction thus, vertically move up, thereby promote two group first, second bow pressing arm 25,26 are recovered to the fuselage inside and outside, finally get back to the position shown in Fig. 1 solid line.
In above-mentioned first and second embodiment, described hydraulic cylinder can be the normal hydraulic oil cylinder, also can be boosting oil cylinder.Boosting oil cylinder is described emphatically below.
Fig. 2 is the longitudinal sectional view of the boosting oil cylinder in the utility model extruding-enlarging branch tray machine.Boosting oil cylinder comprises circle tube cylinder 5, cylinder body 5 has two ends respect to one another vertically, wherein an end is by integrally welded and by cylinder cap 15 sealings with cylinder cap 5, the other end is provided with it fixedly big fairlead 2 of all-in-one-piece, and O ring back-up ring a4 and O-ring seals a5 are set between the external surface of big fairlead 2 and cylinder body 5 inner surfaces.
Be provided with in the cylinder body 5 and its coaxial substantially big piston bar 1, big piston bar 1 comprises big piston bar main part 12 and connecting portion 16, and big piston bar main part 12 is the cylindrical shape that inside has cylindrical cavity.Be provided with in the cavity of big piston bar main part 12 and its coaxial substantially cylindrical small piston rod 4.Have a determining deviation between the external surface of big piston bar main part 12 and the inner surface of cylinder body 5, make to form axial cylindrical cavity between cylinder body 5 and the big piston main part 12; Have a determining deviation between the inner surface of big piston bar main part 12 and the inner surface of small piston rod 4, make to form axial cylindrical cavity between big piston bar main part 12 and the small piston rod 4.
Big piston bar main part 12 has the first relative vertically end and second end, wherein, fixedly connected between the connecting portion 16 of first end and big piston bar 12, for example by being welded to connect, and the external diameter of connecting portion 16 is identical with the external diameter of big piston bar main part 12, thereby form the big piston bar 1 of one, big fairlead 2 inside set gradually the piston rod of polyurethane material vertically with the support ring a2 of sealing a1, polyformaldehyde material, this special envelope a3 of polyurethane material, make to form sealing between big piston bar 1 external surface and big fairlead 2 inner surfaces; The big piston 14 that the second end setting is fixedlyed connected with it, big piston 14 whole cylindrical structures, big piston 14 can be fixed by welding in second end of big piston bar main part 12, the external diameter of big piston 14 equates with the internal diameter of cylinder body 5, and can in cylinder body, move back and forth so that drive big piston bar 1 and move back and forth, sealing ring a16 and guidance tape a17 are set between the inner surface of the external surface of big piston 14 and cylinder body 5, and sealing circle a16 can adopt the Ge Laiquan that is made by polyurethane material.
Fixedly form big piston back cavity 8 between the cylinder cap 15 of the same side of all-in-one-piece big piston 14 and little fairlead 6 and closed cylinder 5 one ends; The inboard of the opposite side of big piston 14 and big fairlead 2 can be referred to as big piston ante-chamber 7 with the cylindrical cavity 7 that the cavity that forms between cylinder body 5 inner surfaces and big piston bar main part 12 external surfaces seals; The cylindrical cavity 9 that the opposite side of little fairlead 6 and a side of valve piston 3 are sealed the space between big piston bar main part 12 inner surfaces and small piston rod 4 external surfaces can be referred to as valve piston ante-chamber 9; The cylindrical cavity that forms between the inboard of valve piston 3 opposite sides and connecting portion 16 is called valve piston back cavity 11.
Near the position of big piston 14 the first oil transportation road 10 is set on the bar wall of big piston bar main part 12, is communicated with by the first oil transportation road 10 between big piston ante-chamber 7 and the valve piston ante-chamber 9.
The course of work of boosting oil cylinder in the utility model extruding-enlarging branch tray machine is described below.
Again referring to Fig. 2, when oil cylinder is in state shown in Figure 2, when switching to, the reversal valve of oil cylinder makes oil-feed in the big piston back cavity 8 and the fuel-displaced operating position of big piston plug ante-chamber 7, then oil-feed in the big piston back cavity 8, big piston ante-chamber 7 and the valve piston ante-chamber 9 that is communicated with big piston ante-chamber 7 by the first oil transportation road 10 are fuel-displaced, piston portion by promoting all-in-one-piece big piston 14 and little fairlead 6 respectively along cylinder body 5 inner surfaces and small piston rod 4 external surfaces towards (promptly away from the direction of cylinder cap 15, towards illustrated left) endwisely slip, promote big piston bar 1 thus (promptly vertically towards the axial outside of cylinder body, towards illustrated left) also do moving away from cylinder cap 15, oil in the big piston back cavity 8 is by the second oil transportation road 13a simultaneously, 13b enters valve piston back cavity 11, make and promote 11 oil-feeds of valve piston back cavity big piston bar 1 by the connecting portion 16 that promotes big piston bar 1 thus and move forward vertically.
This shows that under the constant situation of oil pressure, the utility model has increased the thrust that the big piston bar is exported by increasing the active area (prior art be the big piston area only, and the utility model comprises big piston area and valve piston area) of piston.Promptly, big piston 14 by making big piston bar main part 12 second ends and little fairlead 6 and the connecting portion 16 that is positioned at its first end are subjected to forward the thrust of (illustrated left) simultaneously, make big piston bar 1 under the effect of double reaction plus, move forward and stretch out cylinder body, finally move to position shown in Figure 1, make hydraulic cylinder thus under the constant situation of hydraulic cylinder appearance and size and system pressure, realized the effect of reinforcement.
When promoting big piston bar 1,8 oil-feeds of big piston back cavity move forward to when being in the extreme position that stretches out outside the cylinder body, withdraw in cylinder body 5 in order to make big piston bar 1, the reversal valve of oil cylinder switched to make 7 oil-feeds of big piston ante-chamber and the fuel-displaced operating position of big piston back cavity 8, big piston ante-chamber 7 and valve piston ante-chamber 9 oil-feeds that are communicated with by the first oil transportation road 10 with big piston ante-chamber 7, big piston back cavity 8 and simultaneously by the second oil transportation road 13a, the valve piston back cavity 11 that 13b is communicated with big piston back cavity 8 is fuel-displaced, the piston portion and the little fairlead 6 that promote all-in-one-piece big piston 14 thus endwisely slip towards cylinder cap 15 along cylinder body 5 inner surfaces and small piston rod 4 external surfaces respectively, promotion big piston bar 1 moves vertically and is withdrawn into cylinder body 5 inside, finally gets back to position shown in Figure 2.
Although the drive medium that above-mentioned the utility model boosting oil cylinder adopts can be pressure oil, it will be appreciated by those skilled in the art that drive medium also can adopt compressed air.
Need to prove that although in the above description, hydraulic cylinder is the pressurization hydraulic oil cylinder, the utility model is not limited thereto, and hydraulic cylinder also can be the normal hydraulic oil cylinder.
Claims (10)
1. an extruding-enlarging branch tray machine comprises fuselage (24), is installed in force-bearing disc hole builder (25,26) and hydraulic cylinder (20) in the fuselage, it is characterized in that:
The force-bearing disc hole builder has symmetrically arranged vertically two groups of bow pressing arms, one end and fuselage one end of two groups of bow pressing arms are hinged, its other end is by the cylinder pushes that is arranged on the fuselage other end, and be hinged forms every group of bow pressing arm by a pair of support arm (25,26,25`, 26`);
Wherein, another of the articulated section of a pair of support arm of described one group of bow pressing arm (25,26) and another group bow pressing arm is to the maximum squeezed distance D 1 of the formation of the ultimate range between the articulated section of support arm (25`, 26`) force-bearing disc hole builder, and the squeezed distance D 1 of this maximum satisfies following formula with the outer diameter D 2 of hydraulic cylinder (20):
Wherein, 0.225≤A≤0.25, deviation α≤0.1A.
2. extruding-enlarging branch tray machine as claimed in claim 1 is characterized in that, the squeezed distance D 1 of described maximum is between 2000mm ± 200mm.
3. extruding-enlarging branch tray machine as claimed in claim 1 or 2 is characterized in that, the outer diameter D 2 of described hydraulic cylinder (20) is between 450mm ± 45mm.
4. extruding-enlarging branch tray machine as claimed in claim 3 is characterized in that, the inside diameter D 3 of described hydraulic cylinder (20) is between 380mm ± 38mm.
5. extruding-enlarging branch tray machine as claimed in claim 1 is characterized in that, the squeezed distance D 1 of described maximum is between 1700mm ± 170mm.
6. as claim 1 or 5 described extruding-enlarging branch tray machines, it is characterized in that the outer diameter D 2 of described hydraulic cylinder (20) is between 426mm ± 42mm.
7. extruding-enlarging branch tray machine as claimed in claim 6 is characterized in that, the inside diameter D 3 of described hydraulic cylinder (20) is between 360mm ± 36mm
8. as claim 4 or 7 described extruding-enlarging branch tray machines, it is characterized in that described hydraulic cylinder (20) is a pressurizing cylinder, comprising:
Cylinder body (5) and can be at cylinder body (5) axis to the first stage piston assembly that moves back and forth (14,1); And
The second piston assembly (3,4) that relative first stage piston assembly moves back and forth, the piston rod (4) of second piston assembly (3,4) passes the piston (14) of first stage piston assembly.
9. extruding-enlarging branch tray machine as claimed in claim 8, it is characterized in that: described first stage piston assembly has the first main oil pocket (7) and the second main oil pocket (8), and described second piston assembly has respectively the first secondary oil pocket (9) and the second secondary oil pocket (11) that links to each other with the second main oil pocket (8) with the first main oil pocket (7).
10. extruding-enlarging branch tray machine as claimed in claim 9, it is characterized in that: link to each other by the oil transportation road (10) that is arranged in the first piston assembly between the described first main oil pocket (7) and the described first secondary oil pocket (9), link to each other by the oil transportation road (13) that is arranged in second piston component between the described second main oil pocket (8) and the described second secondary oil pocket (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201732040U CN201080608Y (en) | 2007-09-18 | 2007-09-18 | Extruding and expanding disk supporting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201732040U CN201080608Y (en) | 2007-09-18 | 2007-09-18 | Extruding and expanding disk supporting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201080608Y true CN201080608Y (en) | 2008-07-02 |
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ID=39614284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201732040U Expired - Lifetime CN201080608Y (en) | 2007-09-18 | 2007-09-18 | Extruding and expanding disk supporting machine |
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| Country | Link |
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| CN (1) | CN201080608Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113802543A (en) * | 2021-06-25 | 2021-12-17 | 中煤地质集团有限公司 | Visualization method and visualization device for squeezing and expanding branch disc process |
-
2007
- 2007-09-18 CN CNU2007201732040U patent/CN201080608Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113802543A (en) * | 2021-06-25 | 2021-12-17 | 中煤地质集团有限公司 | Visualization method and visualization device for squeezing and expanding branch disc process |
| CN113802543B (en) * | 2021-06-25 | 2023-02-24 | 中煤地质集团有限公司 | Visualization method and visualization device for squeezing and expanding branch disc process |
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Granted publication date: 20080702 |