CN85101351A - Divided-bucket type rotary excavator - Google Patents
Divided-bucket type rotary excavator Download PDFInfo
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- CN85101351A CN85101351A CN 85101351 CN85101351A CN85101351A CN 85101351 A CN85101351 A CN 85101351A CN 85101351 CN85101351 CN 85101351 CN 85101351 A CN85101351 A CN 85101351A CN 85101351 A CN85101351 A CN 85101351A
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- base plate
- cutting part
- excavator
- connecting rod
- central axis
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Abstract
The assembly method of the relevant three dimensional metal frame of the present invention and assembly machine thereof.Its operation is as follows.A: prepare a series of by vertical silk 34 gauze wire cloths of forming 36.B: gauze wire cloth is arranged on the bearing support 81.C: gauze wire cloth is aligned on marker assemblies.D: gauze wire cloth is arranged on the assembly that first floor sequences.E a: at least acrossing wire 37 is placed on across vertical silk 34 or supporting wire 35 places.F: have at least a welder can arrive gauze wire cloth across acrossing wire 37 places.G: in the area, steel wire is welded.H: gauze wire cloth moves with respect to welder.I: repeat operation f to h, next root acrossing wire is welded.
Description
The invention relates in the foundation construction (being used for the in-site pouring concrete stake) or the similar people and move the bucker-type rotary excavator of property with engineering and building operation.
Carry out in a of stratum in the construction of concrete stake in-site pouring, the lower end expansion with cement pile body b is useful as shown in Figure 1, because the end that expands has increased its weight capacity.
The contrary round-robin method of machinery dredge operation has been used among the construction of pile of this lower end expansion, according to contrary round-robin method, when excavating stratum a with a rotary drilling-head (not shown), squeeze into a upright pipe d at surface layer, bentonite slurry or slime water are full of a hole, in case Kong Xiangbi f collapses, as shown in Figure 2.On the other hand, rotate rotary bit, and order about it and dig soil layer downwards, utilize the contrary circulation of mud or water that the soil and the beach volleyball of digging out gone out a hole.
Yet in this contrary round-robin method, the stake bottom g that the hole enlarged becomes back taper inevitably, shown in the h among Fig. 1 and Fig. 2.Therefore its bottom has just stayed the mud i of precipitation, and after stake hole cement injection formed foundation pile, residual mud can reduce the weight capacity of foundation pile bottom, thereby has reduced its reliability.
For addressing these problems, the application in past had once proposed a divided-bucket type rotary excavator, this excavator is divided into the cutting part that several sections constitutes by the garden tube at a band end and is formed, these cutting parts be installed in an axis of rotation around and be suitable for the (Japanese Unexamined Patent Publication No the 21st that radially inwardly and outwards moves along axis of rotation, No. 079/83, No. the 1st, 190,290, the Japanese Patent No. after patenting).The application's invention is a kind of improvement about the Japan Patent excavator.
Main purpose of the present invention provides a kind of divided-bucket type rotary excavator that has improved, and it has eliminated the whole defectives in the prior art.
Therefore another object of the present invention provides a kind of divided-bucket type rotary excavator, and it can easily enlarge the bottom in a hole, and can also carry out dry method and excavate, and makes Kong Youyi flat bottom surface of stake of expansion, has prevented that any mud from retaining on it.
For reaching these purposes, according to this divided-bucket type rotary excavator of the present invention by a band that is divided into several parts at the bottom of the cylindrical scraper bowl cutting part that constitutes form, its each curved surface sidewall and base plate all have cutting teeth to be contained on its leading edge, described cutting part be installed in a central axis around and can radially inwardly and outwards moving along described central axis.
In a reference example of the present invention, central axis is made up of an outer hollow with polygon cross section and interior hollow that is contained in slidably in the described outer hollow, this excavator also comprise one be installed in, hydraulic cylinder in the outer hollow, so that central axis can be made stretching motion, one group of parallel rod links together outer hollow and each cutting part, length is half connecting rod of parallel rod, the bottom of mid point following in the parallel rod and interior hollow is coupled together, make relative stretching motion by the outer hollow of cylinder pushes with interior hollow thus, make cutting part radially inwardly and outwards moving along central axis.
For more clearly understanding the present invention, by way of example, and reference example is described with reference to the drawings.
Fig. 1 is a vertical sectional view with the pile with enlarged distal tip of prior art arrangement.
Fig. 2 is the contrary round-robin method vertical sectional view of prior art.
Fig. 3 is to show the schematic diagram that carries out digging operation according to the present invention by the tracklaying crane that rotary excavator is housed.
Fig. 4 is the positive view that is reduced to the minimum diameter position according to excavator of the present invention.
Fig. 5 is the bottom plan view of excavator shown in Figure 4.
Fig. 6 is the positive view that is stretched over the maximum gauge position according to excavator of the present invention.
Fig. 7 is the bottom view of excavator shown in Figure 6.Shown the arrangement of bucket assembly.
Fig. 8 is the front elevation drawing of the curved sides wallboard of each cutting part of arrow X or Y direction among Fig. 7.
Fig. 9 shows the vertical view of relevant linkage shown in Figure 6.
Figure 10 a is a partial sectional view of closing and open cutting part base plate mechanism;
Figure 10 b is the partial bottom view of mechanism shown in Figure 10 a.
Fig. 3 to Figure 10 has shown one embodiment of the present of invention.With particular reference to shown in Figure 3, the tracklaying crane 2 that installs rotary excavator of the present invention comprises a creeper truck 3 that is carrying tracklaying crane 2 on basis or ground 1, rotating base 4 usefulness swivels are fixed on the creeper truck 3, arm 5 is installed on the rotating basis 4, so that do elevating movement, kelly 6 usefulness can rise, free end (hydraulic pressure) drive unit 7 that the mode that descends is suspended on arm is used for making kelly 6 rotations, a linking arm 8 is used for connecting drive unit 7 and rotating basis 4, rotating guide 9 and kelly 6 are installed between the upper end and drive unit 7 of arm 5 abreast, a hydraulic rotating coupling 10 is contained in the upper end of kelly 8, can relatively rotate with it, and can do relative slip with guide peg 9 by guide 10a.Kelly 6 has a hydraulic hose reel 11, the hydraulic pressure small hose (not shown) of reeling above, one of wheel pipe terminates on the fluid pressure supply source (not shown) that is loaded on the rotating basis 4, the other end is received on the hydraulic cylinder by rotation shaft coupling 10, and hydraulic cylinder is incited somebody to action in the divided-bucket type rotary excavator that be connected on Kai Shi drilling rod 6 lower ends in the back according to the present invention and is illustrated.
A drill bit (not shown) that bores soil can be installed in kelly shown in Figure 36 lower ends.Reference number 12 representatives are with bore the stake hole that the earth boring auger head is got on stratum 1.
The divided-bucket type rotary excavator that the present invention describes is by describing with reference to figure 4-10.The connection carriage 13 that has flange 13b is that the pin 2(of the hole 13a on being used for passing kelly 6 lower ends and being connected carriage 13 by is not shown) and the lower end of kelly 6 removably links together.The urceolus 14 of square or rectangular cross section by it flange 14a and flange 13b be connected carriage 13 usefulness nuts and bolt (not shown) and link together.Inner core 15 with square or rectangular cross section is slidably mounted in the urceolus 14, forms a central axis B.In urceolus 14 and inner core 15, inserting a hydraulic cylinder 16.Its upper end is connected from connecting on the carriage 13c that carriage faces down outstanding 13 times with connecting pin 17.The lower end of the piston rod 16a of hydraulic cylinder 16 is connected on the cross head that is contained in inner core 15 lower ends with pin 19.
As shown in Figure 5, cutting apart hollow circular cylinder is four parts, and the curved surface side plate 20 that obtains has been combined to form four cutting part C with base plate 21,22,23 and 24
1, C
2, C
3And C
4, base plate 21,22,23,24 shape make just its in the above hollow circular cylinder when the diameter minimum position, become cylindrical bottom surface.
Further describe in detail, as shown in Figure 7, radially relative cutting part C
1And C
3, they each all by curved surface side plate 20 be fixed on the leading edge that lunate base plate 21 is formed on the side plate a plurality of cutting teeths 25 are installed in the curved surface side plate, leading edge is the preceding limb on the direction of rotation of fingerboard.The upper limb of each curved surface side plate 20 all overall fixed an intilted guide edge 26(and is seen Fig. 8).
Another is to radially relative cutting part C
2And C
4, they each all form by curved surface side plate 20 and crescent base plate 22, connecting a triangle bottom plate 23 with hinge 27 on the crescent base plate.A plurality of cutting teeths 25 are installed in the leading edge of triangle bottom plate.It is the preceding limb on the direction of rotation of plate.In addition, a plurality of cutting teeths 25 are contained in the leading edge of curved surface side plate 20, and the upper limb overall fixed of curved surface side plate guide edge 26.
The bottom of the center of a long rectangular base plate 24 and inner core 15 is fixed together, and on the preceding limb on heart both sides a plurality of cutting teeths 25 is housed all therein.Reference number 27 refers to be installed in the cutting teeth at base plate 24 centers.
Two carriages 28 and two carriages 29 below it are fixed on each side of urceolus 14 to give fixed spacing distance.Two carriages 30 and two carriages 31 above it are fixed on cutting part C to give fixed spacing distance
1-C
4Each the four sides side plate 20 inner face.Carriage 32 is fixed on the sidewall of inner core 15 lower ends.
Cutting part C
1-C
4Be installed in central axis B around.Carriage 28 and 30 is connected to each other by connecting rod 33, and carriage 29 and 31 has formed a secondary parallel linkage (Fig. 4 or Fig. 6) by being connected to each other with the isometric connecting rod 34 of connecting rod 33.
The mid point of each connecting rod 34 is to connect 34 half connecting rods 35 to be connected on each carriage 32 by length, has formed Scott-Russell (Scott-Russel) parallel motion mechanism.
Connecting rod 33 and 34 further connects together by the mid point of connecting rod 36 with them, and the length of connecting rod 36 equals connecting rod 33 and 34 and gives fixed distance.Yet, connecting rod 36 be can remove from no.Reference number 37 representatives connect the pin of connecting rod.
With reference to figure 9 are vertical views of each connecting rod, between the connecting rod 33 or the distance between the connecting rod 34 preferably wideer as much as possible, and use stiffener 38 in the middle of being preferably in, to increase the intensity of connecting rod 33 and 34.
Figure 10
aWith 10
bWith diagrammatic representation each cutting part C has been described
2Or C
4Base plate 23 open and close the example of mechanisms.A upper support frame 39 and a bracing frame 40 that is arranged under it are equipped with in the inboard of each curved surface side plate 20.Close and open bar 41 for one and pass upper support frame 39 and middle bracing frame 40, and fixing a pallet piece 42 in its lower end, the vertical view of pawl bar 42 is rectangles, its rib 42 that has bottom becomes 30 ° of angles with the rectangle vertical line oblique of pallet piece 42, and two inclined-plane 42b and 42c upwards stretch toward rib 42 both sides sideling from rib 42 beginnings.The upper end of bar 41 curves recessed handle shape, forms a handgrip 43, a spring 44 is housed on it keeps pallet piece 42 to make base plate 23 be in the position of closing.
One open-work 23a is arranged on the base plate 23, and hollow garden tube 45 is fixed on the base plate 23 around open-work 23a.Cover plate 48 is fixed on the upper end of hollow garden tube 45, has a rectangle open-work 47 above it.The longitudinal centre line L of open-work 47 becomes the crest line 42a at 30 ° of angles to overlap with pallet piece 42 longitudinal centre lines, if the axis of pallet piece distaff 41 rotates 30 ° like this, just can pass through rectangle open-work 47.
The operation of the excavator that will constitute the method before being described in according to the present invention describes below.
With earth drill or similarly machinery after basis or stratum 1 break into a hole 12, the lower end that is connected and is suspended on kelly 6 according to divided-bucket type rotary excavator A of the present invention as shown in Figure 3, and hydraulic cylinder 16 is protruding as shown in Figure 4.When hydraulic cylinder 16 reaches its maximum position, cutting part C
1-C
4In parallel rod 33 and 34, and inwardly draw in parallel to each other under the effect of Scott-Russell's translation connecting rod 34 and 35, as shown in Figure 4 and Figure 5.Make by cutting part C
1-C
4The scraper bowl diameter that constitutes becomes minimum value.Reference letter A is exactly the minimum diameter position that the excavator base plate that is in it can remain on make position in Fig. 3.
The diameter that draws scraper bowl so fully in is slightly less than the diameter in the stake hole 12 that breaks into, and therefore handling tracklaying crane 2 can be together following in stake hole 12 with excavator A and kelly 6.
Scraper bowl is parked in A ' position, begins to enlarge the operation in a hole 12 here.On A ' position, rotary excavator of the present invention by kelly 6, begins rotation by drive unit 7, and hydraulic cylinder 16 retractions are operated crane simultaneously toward transferring excavator, by this way, and cutting part C
1-C
4In turn advance downwards and outwards, make that stake hole 12 is extended, reach its complete open position up to rotary excavator, as A " position among Fig. 3.
Now be described in more detail, when the extended position of hydraulic cylinder 16 from its Fig. 4 changes to retracted position among Fig. 6, drive urceolus 14 and do relative motion, shortened the total length of central axis B with inner core 15, so each cutting part C
1-C
4Under the synergy of parallel rod 33,34 and Scott-Russell's translation connecting rod 34,35, outwards motion in parallel to each other is up to cutting part C
1-C
4Reach Fig. 4 and complete open position shown in Figure 5.
In such motion, cutting part C
1-C
4Rotate along arrow D direction among Fig. 7, therefore be installed in cutting part C
1-C
4Leading edge and the cutting teeth that is fixed on the base plate 24 on the inner core 15 are cut soil and sand.Enlarge the result in stake hole, regular cone expansion hole 48 has been formed on the bottom in the stake hole 12 in the ground.
After the excavation that enlarges stake hole 12 was finished, hydraulic cylinder 16 stretched out.When hydraulic cylinder 16 when position shown in Figure 6 is elongated to position shown in Figure 4, cutting part C
1-C
4Be brought to Fig. 4 and the position of closing up fully shown in Figure 5 in parallel to each other, soil that excavates like this and sand are accommodated among the scraper bowl that closes up.Handle crane then rotary excavator A is risen to ground from stake hole 12.Thereafter the rotating basis 4 of tracklaying crane 2 drives the loading flat board top (not shown) that excavator A rotates to dump truck immediately, then opens the base plate 23 of cutting part, and soil and sand are discharged on the dump truck loading flat board.
In order to open base plate 23, the elastic force that overcomes spring 44 rotates the handgrip 43 shown in Figure 10 a along the direction of arrow E indication among Figure 10 a, make pallet piece 42 aim at rectangular opening 47, decontrol base plate 23, the result is because deadweight and top soil and husky weight make base plate 23 open around pivot along arrow F direction indication among Figure 10 a.
For closing base plate 23, can shift it onto close position with external force, or scraper bowl is placed on the level land, make base plate get back to fastening position, when base plate 23 was upwards closed, the edge of rectangle open-work 47 contacted with the inclined surface 42b of pallet piece 42, and base plate 23 further moves upward.Because the cam of inclined surface 42b, the elastic force that makes pallet piece 42 overcome spring 44 begin to rotate, and aim at rectangle open-work 47 up to pallet piece.In this moment, pallet piece 42 passes the open-work 47 on the base plate 23, also arrived its fastening position of base plate 23.After pallet piece 42 passes open-work 47, because the effect of spring 44 makes pallet piece 42 rotate 30 ° of angles relative to open-work 47, shown in Figure 10 b.
As above-mentioned mode, excavator of the present invention has been finished and has been enlarged the operation cycle that excavate bottom, stake hole.In fact, if desired, the above-mentioned cycle can repeat arbitrarily repeatedly.
From top explanation as can be seen, according to rotary excavator of the present invention can be easily, realize the operation of bottom, expansion stake hole without any fault ground.Because it is smooth enlarging the bottom in stake hole, back, do not contain any mud and stay the bottom, so the reliability of pile weight capacity improves.
In addition, use according to excavator of the present invention, whether there is water to exist in the stratum and do not influence dredge operation, and the circulation fluid that unlike existing contrary cycling method, needs swell soil or similar item, so just do not exist,, prevent that the cost of public hazards from can reduce owing to adopt scraper bowl to dig stake owing to the soil of excavating and sand contain the danger that above-mentioned circulation fluid causes public hazards, and can shorten the time of the work of constructing, so the present invention also is superior at economic aspect.
Should be noted that especially, according to the present invention, excavator is by forming by parallel rod and the Scott-cutting part of Russell's translation link supports on central axis, guaranteed the big parallel motion of cutting part, therefore can easily form the hole that has than the twice expansion base diameter of stake bore dia, the mechanism of employing comprises the number that reduces connecting rod, so that simplify the structure of pile digger, it is easy to manufacture, and cost is few.
Concerning those are familiar with the people of this respect technology, do not need further to indicate, they can understand that also the description of front is the reference example about some contrive equipments, and under the situation of not leaving invention thought and scope, can carry out various changes and modification to invention.
Claims (9)
1, the cutting part that constitutes of the cylinder of a kind of divided-bucket type rotary excavator at the bottom of by a band that is divided into several sections is formed, its the four sides sidewall and the leading edge of base plate are equipped with cutting teeth, described cutting part be installed in a central axis around, and can radially inwardly and outwards moving along described central axis.
2, according to the rotary excavator described in the claim 1, wherein said cutting part has four, relative a pair of of their intermediate radial, each all is made up of a curved sides wallboard and crescent base plate that is fixed on the described sidewall paneling, a pair of in addition radially relative cutting part, each all is by a curved sides wallboard, one is fixed on that crescent base plate on the described sidewall paneling and triangle bottom plate that is hinged on the described crescent base plate form, and the base plate of a block length rectangle also is housed therein.
3, according to claim 1 described a kind of rotary excavator, wherein said central axis is to be made of an outer hollow and the interior hollow that is slidably mounted in the described outer hollow with polygon cross section.Excavator also have one be installed in described in, hydraulic cylinder in the outer hollow, with making described central axis make stretching motion, one group of parallel rod is connected described outer hollow on each described cutting part, length be half connecting rod of described connecting rod be used for mid point following in the described parallel rod and described in the lower end of hollow connect together, therefore make the stretching motion of outer hollow and interior hollow caused by relative motion promote described cutting part radially inwardly or outwards moving along described central axis by described hydraulic cylinder.
4, according to claim 3 described a kind of rotary excavators, wherein said outer hollow has a foursquare cross section, and described scraper bowl is divided into four parts, and four groups of described parallel rods are installed.
5, according to claim 4 described a kind of rotary excavators, wherein each is organized described parallel rod and is made up of the pair of parallel connecting rod.
6, according to claim 5 described a kind of rotary excavators, wherein said pair of parallel connecting rod space is big as much as possible.
7, according to claim 5 described a kind of rotary excavators, a stiffener is installed at least between wherein said pair of parallel connecting rod.
8, according to claim 3 described a kind of rotary excavators, the top of wherein said hydraulic cylinder body and the upper end of described outer hollow connect together, and the lower end of the end of described hydraulic cylinder piston rod and described interior hollow connects together.
9, according to a kind of rotary excavator described in the claim 3, wherein said cutting part includes that base plate is closed and device for opening, this device comprise one can be around its in fact vertical rotational close and open bar, its upper end is a crank section, one spring does not contain around its rotational it with the fixing described bar of elastic force, a base plate forms the part at the bottom of the cutting part at least, and is connected with cutting part in hinged way.One pallet piece is fixed on the lower end of described bar and has the inclined-plane of blistering wheel effect at least, when described base plate when hinge rises, open-work EDGE CONTACT on described inclined-plane and the base plate, the cam on inclined-plane makes pallet piece overcome the rotational of the elastic force of described spring around described bar, so just pallet piece is aimed at the described open-work on the described base plate and it is therefrom passed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85101351A CN85101351B (en) | 1985-04-01 | 1985-04-01 | Divided-bucket type rotary excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85101351A CN85101351B (en) | 1985-04-01 | 1985-04-01 | Divided-bucket type rotary excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85101351A true CN85101351A (en) | 1987-01-31 |
| CN85101351B CN85101351B (en) | 1988-11-23 |
Family
ID=4791790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85101351A Expired CN85101351B (en) | 1985-04-01 | 1985-04-01 | Divided-bucket type rotary excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85101351B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140888A (en) * | 2010-02-03 | 2011-08-03 | 国家电网公司直流建设分公司 | Excavating drilling machine |
-
1985
- 1985-04-01 CN CN85101351A patent/CN85101351B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140888A (en) * | 2010-02-03 | 2011-08-03 | 国家电网公司直流建设分公司 | Excavating drilling machine |
| CN102140888B (en) * | 2010-02-03 | 2013-06-12 | 国家电网公司 | Excavating drilling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85101351B (en) | 1988-11-23 |
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| C13 | Decision | ||
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Owner name: AOPUTI PATENT RESEARCH AND MANUFACTURING CO., LTD Free format text: FORMER OWNER: NAEGELE FEINMASCHINENBAU |
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