CN103422523A - Grab bucket body and continuous wall hydraulic grab bucket - Google Patents
Grab bucket body and continuous wall hydraulic grab bucket Download PDFInfo
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- CN103422523A CN103422523A CN2013103935105A CN201310393510A CN103422523A CN 103422523 A CN103422523 A CN 103422523A CN 2013103935105 A CN2013103935105 A CN 2013103935105A CN 201310393510 A CN201310393510 A CN 201310393510A CN 103422523 A CN103422523 A CN 103422523A
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Abstract
The invention discloses a grab bucket body and a continuous wall hydraulic grab bucket, and relates to the technical field of engineering machines. The grab bucket body and the continuous wall hydraulic grab bucket solve the technical problems that in the prior art, the depth at which a grab bucket body intrudes into a medium during work is small and the grabbing capacity is not strong. The grab bucket body comprises a bucket body and at least one bucket tooth which is fixedly connected with the bucket body, wherein the intruding angle of the bucket tooth is 60 degrees to 80 degrees. The continuous wall hydraulic grab bucket comprises a support, a hydraulic thrust mechanism and two grab bucket bodies obtained according to any one technical scheme of the invention. Bucket bodies of the two grab bucket bodies are both connected with the support through pin rolls, the hydraulic thrust mechanism is connected with the grab bucket bodies, and the hydraulic thrust mechanism can drive the two grab bucket bodies to rotate relative to the support to a closing position or an opening position. According to the continuous wall hydraulic grab bucket, when the grab bucket bodies intrude into a working medium, the depth at which the grab bucket bodies intrude into the working medium can be increased, and the grabbing capacity of the grab bucket bodies to the working medium can be enhanced.
Description
Technical field
The present invention relates to technical field of engineering machinery, relate in particular to a kind of continuous wall hydraulic grab of grabbing bucket body and this grab bucket body being set.
Background technology
The grab bucket body of continuous wall hydraulic grab is comprised of bucket body and bucket tooth two parts, mainly is divided into two stages during operation: deadweight fall stage and hydraulic pressure close the bucket stage.In the deadweight fall stage, the grab bucket body is flared to maximum angle and invades the operation medium by himself gravity that (the operation medium is also referred to as crawled medium) inside; And closing the bucket stage at hydraulic pressure, the grab bucket body closes at hydraulic pressure under the effect of bucket moment and realizes the crawl close bucket process the medium that fulfils assignment.
In prior art, the outline of the bucket body of grab bucket body is circular arc type shape (being called for short: circular-arc), the bucket figure shape of circular arc type shape is defined as: the distance between arc outline and the centre of gyration remains unchanged from top to bottom, that is: R1=R2=R3=......, (or claim: angle of penetration) smaller, the intrusion angle of bucket body noseplate is to be less than the acute angle of 85 ° to the intrusion angle of bucket tooth.
At least there is following technical problem in prior art:
In prior art, because the grab bucket body structure in continuous wall hydraulic grab design is unreasonable, caused equipment to invade when operation that the degree of depth of operation medium is more shallow, Grasping skill is not strong.
Summary of the invention
The objective of the invention is to propose a kind of continuous wall hydraulic grab of grabbing bucket body and this grab bucket body being set, solved the technical problem that the degree of depth is more shallow, Grasping skill is not strong of invading the operation medium when there is operation in prior art.
For achieving the above object, the invention provides following technical scheme:
The grab bucket body that the embodiment of the present invention provides, comprise bucket body and at least one bucket tooth be fixedly connected with described bucket body, and wherein: the intrusion angle of described bucket tooth is 60 °～80 °.
At one, preferably or alternatively in embodiment, the intrusion angle of described bucket tooth is 63 °～70 °.
At one, preferably or alternatively in embodiment, described bucket body comprises successively connected arc plate, middle base plate and noseplate, is fixedly connected with at least one described bucket tooth on described noseplate, and the intrusion angle of described noseplate is 85 °～100 °.
At one, preferably or alternatively in embodiment, the intrusion angle of described noseplate is 88 °～95 °.
At one, preferably or alternatively in embodiment, the outline of described bucket body increases gradually along the direction radius of gyration that approaches described bucket tooth tooth top.
At one, preferably or alternatively in embodiment, the outline of the outline of described arc plate, the outline of described middle base plate and described noseplate surrounds the described outline of described bucket body jointly.
Preferably or alternatively in embodiment, on described noseplate, described middle base plate, all be fixedly connected with separately at least two described bucket tooths at one.
At one preferably or alternatively in embodiment, described bucket body also comprises left plate, right plate, left side plate and right side plate, described arc plate and middle base plate are connected between described left plate and right plate, described noseplate is connected between described left side plate and described right side plate, and the outline of described left plate and the outline of described right plate increase gradually along the direction radius of gyration that approaches described bucket tooth tooth top.
At one, preferably or alternatively in embodiment, the inner surface of described bucket tooth is curved surface or inclined-plane, the central region that the intrusion angle of described bucket tooth is described bucket tooth inner surface of described bucket tooth while invading ground and the angle between described horizontal plane.
The continuous wall hydraulic grab that the embodiment of the present invention provides, comprise bearing, hydraulic thrust mechanism and two grab bucket bodies that the arbitrary technical scheme of the present invention provides, wherein:
The bucket body of two described grab bucket bodies all is connected with described bearing bearing pin separately;
Described hydraulic thrust mechanism is connected with described grab bucket body, and described hydraulic thrust mechanism can drive two described grab bucket bodies and turns to closed position or open position with respect to described bearing.
Based on technique scheme, the embodiment of the present invention at least can produce following technique effect:
The intrusion angle of the bucket tooth of the grab bucket body that the embodiment of the present invention provides is 60 °～80 °; the intrusion angle of bucket tooth is preferably 63 °～70 °; this intrusion angle is not broken in disconnected and has further been strengthened the grab bucket body and invade the degree of depth of operation medium and close the bucket stage at hydraulic pressure in the deadweight fall stage and capture the ability of operation medium at effective protection bucket tooth, so solved the technical problem that the degree of depth is more shallow, Grasping skill is not strong of invading the operation medium when there is operation in prior art.
In the optimal technical scheme that the embodiment of the present invention provides the bucket body of grab bucket body be shaped as the type that the extends out shape that the radius of gyration (R1, R2, R3...... increase successively) increases gradually from top to bottom, further strengthen the grab bucket body and close the bucket stage at hydraulic pressure and continue the ability of intrusion operation medium;
The intrusion angle of the bucket body noseplate of the grab bucket body that the embodiment of the present invention provides is 85 °～100 °, the intrusion angle of noseplate is preferably 88 °～95 °, and the bucket body noseplate of this intrusion angle further strengthens grab bucket and closes the ability of bucket stage crawl operation medium at hydraulic pressure.
Optimization by above three aspects improves, guarantee bucket tooth do not broken disconnected in, both having strengthened the ability that the operation medium is invaded in grab bucket, having improved again the ability that grab bucket captures the operation medium, the operating efficiency of hydraulic grab has increased significantly.
In sum, optimal technical scheme provided by the invention compared with prior art at least can produce following technique effect:
1, infiltration capability is strong: by optimizing the intrusion angle of bucket tooth, the ability that makes grab bucket invade the operation medium in the deadweight fall stage is stronger; The structure of bucket body is optimized for to the type of extending out by original circular arc, has strengthened grab bucket and closed at hydraulic pressure the ability that the operation medium is invaded in the continuation of bucket stage.
2, Grasping skill is strong: by optimizing the intrusion angle of bucket tooth, make grab bucket close the Grasping skill in bucket stage at hydraulic pressure stronger; The intrusion angle of grab bucket body noseplate is optimized for to 88～95 ° by original acute angle angle, makes grab bucket close the Grasping skill in bucket stage at hydraulic pressure stronger.
3, the grab bucket body structure is simple, easy to process, with low cost: as with former grab bucket body, to compare, the present invention has just optimized the curve shape of bucket body and the angle of penetration of bucket tooth and noseplate, basically retained former grab bucket body structure simple, advantage easy to process, and do not increase any manufacturing cost.
The accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention the present invention does not form inappropriate limitation of the present invention for explaining.In the accompanying drawings:
Fig. 1 is for after the grab bucket body that provides in prior art invades the operation medium, the stressed schematic diagram of deadweight fall stage bucket tooth;
Fig. 2 is for after the grab bucket body that provides in prior art invades the operation medium, and hydraulic pressure closes the stressed schematic diagram of bucket stage bucket tooth;
A schematic perspective view of the grab bucket body that Fig. 3 provides for the embodiment of the present invention;
One sheet of planar schematic diagram of the grab bucket body that Fig. 4 provides for the embodiment of the present invention;
The cross-sectional schematic of the grab bucket body that Fig. 5 provides for the embodiment of the present invention;
Fig. 6 is the cross-sectional schematic of the body of grab bucket shown in Fig. 5 along the A-A line;
Fig. 7 is the cross-sectional schematic of the body of grab bucket shown in Fig. 5 along the B-B line;
The schematic diagram when continuous wall hydraulic grab that Fig. 8 provides for the embodiment of the present invention starts to invade the operation medium;
The grab bucket body that Fig. 9 provides for the embodiment of the present invention is invaded in the process of operation medium, the stressed schematic diagram of deadweight fall stage bucket tooth;
Figure 10 invades in the process of operation medium for the grab bucket body that the embodiment of the present invention provides, and hydraulic pressure closes the stressed schematic diagram of bucket stage bucket tooth;
Reference numeral: 1, right plate; 2, left plate; 3, Upper shaft sleeve; 4, upper ring plate; 5, round steel; 6, limiting plate; 7, right side plate; 8, lower ring plate; 9, Lower shaft sleeve; 10, arc plate; 11, middle base plate; 12, noseplate; 13, left side plate; 14, bucket tooth; 15, bearing; 16, hydraulic thrust connecting rod; 17, operation medium; θ
1, bucket tooth the intrusion angle; θ
2, noseplate the intrusion angle; R
1, the radius of gyration; R
2, the radius of gyration; R
3, the radius of gyration.
The specific embodiment
Below can understand the distinctive points between content of the present invention and the present invention and prior art with reference to accompanying drawing Fig. 1～Figure 10 and word content.Hereinafter, by accompanying drawing and the mode of enumerating optional embodiment more of the present invention, technical scheme of the present invention (comprising optimal technical scheme) is described in further detail.It should be noted that: any technical characterictic in the present embodiment, any technical scheme is all the technical characterictic of plurality of optional or one or more in optional technical scheme, can't exhaustive all alternative technical characterictics of the present invention and alternative technical scheme in order to describe succinct need in presents, the embodiment that also is not easy to each technical characterictic all emphasizes that it is one of optional numerous embodiments, so those skilled in the art should know: arbitrary technological means provided by the invention can be replaced or arbitrarily two or more technological means provided by the invention or technical characterictic are combined mutually and obtain new technical scheme.Any technical characterictic and any technical scheme in the present embodiment all do not limit the scope of the invention, and protection scope of the present invention should comprise that those skilled in the art do not pay that the creative work thinkable any alternate embodiments of institute and those skilled in the art are combined any two or more technological means provided by the invention or technical characterictic mutually and the new technical scheme that obtains.
The embodiment of the present invention provides a kind of grab bucket body that the degree of depth is dark, Grasping skill is strong of operation medium and continuous wall hydraulic grab that this grab bucket body is set of invading.
Below in conjunction with Fig. 3～Figure 10, technical scheme provided by the invention is carried out to more detailed elaboration.
As shown in Fig. 3～Figure 10, the grab bucket body that the embodiment of the present invention provides, comprise bucket body and at least one bucket tooth 14 be fixedly connected with the bucket body, wherein: the intrusion angle θ of bucket tooth 14
1Be 60 °～80 °, be preferably 63 °～70 °.The intrusion angle θ 1 of bucket tooth 14 is defined as: when bucket tooth 14 starts to invade the operation medium, (inboard) working surface of bucket tooth 14 and horizontal plane are (for example: the angle level ground).This invades angle θ
1Do not broken in disconnected and further strengthened the grab bucket body and invade the degree of depth of operation medium 17 and close the bucket stage at hydraulic pressure in the deadweight fall stage and capture the ability of operation medium 17 at effective protection bucket tooth 14.
At one, preferably or alternatively in embodiment, the bucket body comprises successively connected arc plate 10, middle base plate 11 and noseplate 12, is fixedly connected with at least one bucket tooth 14 on noseplate 12, the intrusion angle θ of noseplate 12
2Be 85 °～100 °, be preferably 88 °～95 °.The intrusion angle θ 2 of noseplate 12 is defined as: when bucket tooth 14 starts to invade the operation medium, noseplate 12 inner surfaces and horizontal plane are (for example: the angle level ground).The bucket body noseplate 12 of this intrusion angle further strengthens grab bucket and closes the ability of bucket stage crawl operation medium 17 at hydraulic pressure.
At one, preferably or alternatively in embodiment, the outline of bucket body increases (R gradually along the direction radius of gyration that approaches bucket tooth 14 tooth tops
1<R
2<R
3).Be preferably: the outline of arc plate 10, middle base plate 11 and noseplate 12 surrounds the outline of bucket body jointly.The outline of this shape has strengthened arc plate 10, middle base plate 11 and noseplate 12 and even whole grab bucket closes at hydraulic pressure the ability that operation medium 17 is invaded in the continuation of bucket stage.
Preferably or alternatively in embodiment, all be fixedly connected with separately at least two (being preferably two) bucket tooths 14 at one on noseplate 12, middle base plate 11.The bucket body also comprises left plate 2, right plate 1, left side plate 13 and right side plate 7, arc plate 10 and middle base plate 11 are connected between left plate 2 and right plate 1, noseplate 12 is connected between left side plate 13 and right side plate 7, and left plate 2 increases along the direction radius of gyration that approaches bucket tooth 14 tooth tops gradually with the outline of right plate 1.The outline of this shape has strengthened left plate 2 and has closed at hydraulic pressure the ability that operation medium 17 is invaded in the continuation of bucket stage with right plate 1 and even whole grab bucket.
At one, preferably or alternatively in embodiment, the inner surface of bucket tooth 14 is curved surface or inclined-plane, is preferably curved surface, the intrusion angle θ of bucket tooth 14
1While for bucket tooth 14, invading ground, the central region of the inner surface of bucket tooth 14 and horizontal plane are (for example: the angle level ground).This structure can, under the prerequisite that guarantees bucket tooth 14 tops and root (root is the position that bucket tooth 14 is fixedly connected with noseplate 12) intensity, increase the intrusion angle θ of bucket tooth 14 effectively
1.
The continuous wall hydraulic grab that the embodiment of the present invention provides, comprise bearing 15, hydraulic thrust mechanism (hydraulic thrust mechanism comprises hydraulic thrust connecting rod 16 and is to drive the reciprocating hydraulic cylinder of hydraulic thrust connecting rod 16) and two grab bucket bodies that the arbitrary technical scheme of the present invention provides as shown in Figure 8, wherein:
The bucket body of two grab bucket bodies all is connected with bearing 15 bearing pins separately;
Hydraulic thrust mechanism with the grab bucket body be connected, and hydraulic thrust mechanism can drive two the grab bucket bodies turn to closed position or open position as shown in Figure 8 with respect to bearing 15.
When two grab bucket bodies can utilize while with respect to bearing 15, turning to open position as shown in Figure 8 self gravitation to invade operation medium 17, can implement hydraulic pressure and close the bucket operation and capture the operation medium 17 entered in the grab bucket body when two grab bucket bodies turn to closed position with respect to bearing 15.
Hereinafter concentrate explanation optimal technical scheme provided by the invention and obtained technique effect thereof:
The grab bucket body that the embodiment of the present invention provides is mainly consisted of following 14 part institutes: right plate 1, left plate 2, Upper shaft sleeve 3, upper ring plate 4, round steel 5, limiting plate 6, right side plate 7, lower ring plate 8, Lower shaft sleeve 9, arc plate 10, in base plate 11, noseplate 12, left side plate 13, bucket tooth 14, and, the grab bucket body is connected with bearing 15 by bearing pin, and what by hydraulic thrust connecting rod 16, the active force of hydraulic cylinder is converted into to the body of grabbing bucket closes bucket moment.
Arc plate 10, middle base plate 11, noseplate 12 threes have surrounded the curve shape of bucket body jointly, and have formed the basic framework of bucket body together with right plate 1, left plate 2; Wherein on middle base plate 11 and noseplate 12, can weld several bucket tooths 14, a side plate can be welded respectively in the below of right plate 1 and left plate 13, respectively called after right side plate 7 and left side plate 13.Round steel 5 works to strengthen bucket body intensity; Limiting plate 6 plays the maximum opening angle of restriction grab bucket body and knocks native; The pin shaft hole that Upper shaft sleeve 3 is connected with bearing 15 for the grab bucket body, upper ring plate 4 works to strengthen this pin shaft hole intensity; The pin shaft hole that Lower shaft sleeve 9 is connected with hydraulic thrust connecting rod 16 for the grab bucket body, lower ring plate 8 works to strengthen this pin shaft hole intensity.
The grab bucket body that optimal technical scheme of the present invention provides, under the condition that does not change other part-structures of continuous wall hydraulic grab, study the structure of grab bucket body and the intrusion angle θ of bucket tooth 14 by construction technology
1Be optimized, optimum results is: at first, and by the intrusion angle θ of bucket tooth 14
1Be adjusted into 63 °～70 °, at effective protection bucket tooth 14, do not broken in disconnected and further strengthened the grab bucket body and invade the degree of depth of operation medium 17 and close the bucket stage at hydraulic pressure in the deadweight fall stage and capture the ability of operation medium 17; Then, by the circular arc type shape of bucket body in prior art, (the bucket figure shape of circular arc type is defined as: the distance between arc outline and the centre of gyration remains unchanged from top to bottom, that is: R1=R2=R3=......,) be optimized for the type that the extends out shape that the radius of gyration (R1, R2, R3...... increase successively) increases gradually from top to bottom, the bucket figure shape that extends out type is defined as the distance between arc outline and the centre of gyration from top to bottom to be increased gradually, that is: R1<R2<R3<....The bucket figure shape that extends out type can further strengthen the grab bucket body and close at hydraulic pressure the ability that operation medium 17 is invaded in the continuation of bucket stage; Finally, by the intrusion angle θ of bucket body noseplate 12
2The acute angle that is less than 85 ° in prior art is adjusted into 88 °～95 °, has further strengthened grab bucket and has closed the ability of bucket stage crawl operation medium 17 at hydraulic pressure.Optimization by above three aspects improves, guarantee bucket tooth 14 do not broken disconnected in, both having strengthened the ability that operation medium 17 is invaded in grab bucket, having improved again the ability that grab bucket captures operation medium 17, the operating efficiency of hydraulic grab has increased significantly.
Comparison diagram 1 can be found out with Fig. 9: deadweight fall stage grab bucket body is before and after employing technical scheme optimization grab bucket of the present invention body, the stressed contrast situation on bucket tooth 14 surfaces of grab bucket body, wherein spheric granules is operation medium 17 to be captured, and utilized 17, operation medium and operation medium 17 and the thickness of a line segment at place, indirect contact, grab bucket surface to represent the size of this contact force, the direction of line segment represents the direction of this contact force.Through observation shows that: in the deadweight fall stage, the bucket tooth of the grab bucket body of not optimizing is the stressed less in bucket tooth crown place of the grab bucket body that provides of prior art, and left surface does not stress fully, and the stressed maximum of right flank, grab bucket integral body is subject to resistance larger; The bucket tooth 14 crown place active force maximums of the grab bucket after the optimization that the embodiment of the present invention provides, increase to some extent although left surface is stressed, and stressed reduce more of right flank, so the whole stressed less of grab bucket body.The distribution of forces rule of bucket tooth 14 peripheries after optimization has obtained very large improvement, and the resistance of medium that makes grab bucket be subject in the deadweight fall stage is less, so be very beneficial for the enforcement that bucket tooth 14 is invaded action.In addition, by the intrusion angle of grab bucket body noseplate 12, (invading angle also claims: angle of penetration) θ
2Be optimized for 88 °～95 °, make the noseplate 12 that closes bucket stage grab bucket body at hydraulic pressure can clench crawled operation medium 17, be conducive to the raising of operating efficiency.
Comparison diagram 2 can be found out with Figure 10: close the bucket stage at hydraulic pressure, grab bucket body provided by the invention mainly occurs closely to contact with operation medium 17 with bucket tooth 14 places at noseplate 12, and does not all come in contact in other places in addition.This force Distribution of grab bucket body in the crawl process is very beneficial for grab bucket and continues to invade operation medium 17.In addition, the crawl amount simulation result contrast from the same terms is upper known, and the single of optimizing the grab bucket body captures efficiency and at least improves more than 25%.
The disclosed arbitrary technical scheme of the invention described above unless otherwise stated, if it discloses number range, so disclosed number range is preferred number range, any it should be appreciated by those skilled in the art: preferred number range is only the apparent in view or representative numerical value of technique effect in many enforceable numerical value.Because numerical value is more, can't be exhaustive, so the present invention just discloses part numerical value to illustrate technical scheme of the present invention, and the above-mentioned numerical value of enumerating should not form the restriction to the invention protection domain.
If used the words such as " first ", " second " to limit component herein, those skilled in the art should know: the use of " first ", " second " is only to go up for convenience of description component are distinguished as do not had outside Stated otherwise, and above-mentioned word does not have special implication.
Simultaneously, if the invention described above discloses or has related to component or the structural member of connection fastened to each other, so, unless otherwise stated, be fixedly connected with and can be understood as: can be fixedly connected with (for example using bolt or screw to connect) with dismantling, also can be understood as: non-removable being fixedly connected with (for example rivet, weld), certainly, connection fastened to each other also can for example, be replaced (obviously can't adopt except integrally formed technique) by integral type structure (use casting technique is integrally formed to be created).
In addition, in the disclosed arbitrary technical scheme of the invention described above applied for the term that means position relationship or shape unless otherwise stated its implication comprise and its approximate, similar or approaching state or shape.Arbitrary parts provided by the invention can be both to be assembled by a plurality of independent ingredients, the produced separate part of the technique that also can be one of the forming.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment, the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can modify or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (10)
1. a grab bucket body, is characterized in that, comprises bucket body and at least one bucket tooth be fixedly connected with described bucket body, and wherein: the intrusion angle of described bucket tooth is 60 °～80 °.
2. grab bucket body according to claim 1, is characterized in that, the intrusion angle of described bucket tooth is 63 °～70 °.
3. grab bucket body according to claim 1, is characterized in that, described bucket body comprises successively connected arc plate, middle base plate and noseplate, is fixedly connected with at least one described bucket tooth on described noseplate, and the intrusion angle of described noseplate is 85 °～100 °.
4. grab bucket body according to claim 3, is characterized in that, the intrusion angle of described noseplate is 88 °～95 °.
5. grab bucket body according to claim 3, is characterized in that, the outline of described bucket body increases gradually along the direction radius of gyration that approaches described bucket tooth tooth top.
6. grab bucket body according to claim 5, is characterized in that, the outline of the outline of described arc plate, the outline of described middle base plate and described noseplate surrounds the described outline of described bucket body jointly.
7. grab bucket body according to claim 5, is characterized in that, on described noseplate, described middle base plate, all is fixedly connected with separately at least two described bucket tooths.
8. grab bucket body according to claim 5, it is characterized in that, described bucket body also comprises left plate, right plate, left side plate and right side plate, described arc plate and middle base plate are connected between described left plate and right plate, described noseplate is connected between described left side plate and described right side plate, and the outline of described left plate and the outline of described right plate increase gradually along the direction radius of gyration that approaches described bucket tooth tooth top.
9. grab bucket body according to claim 8, is characterized in that, the inner surface of described bucket tooth is curved surface or inclined-plane, the central region of the inner surface of described bucket tooth and the angle between described horizontal plane when the intrusion angle of described bucket tooth is described bucket tooth intrusion ground.
10. a continuous wall hydraulic grab, is characterized in that, comprises bearing, hydraulic thrust mechanism and two arbitrary described grab bucket bodies of claim 1-9, wherein:
The bucket body of two described grab bucket bodies all is connected with described bearing bearing pin separately;
Described hydraulic thrust mechanism is connected with described grab bucket body, and described hydraulic thrust mechanism can drive two described grab bucket bodies and turns to closed position or open position with respect to described bearing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310393510.5A CN103422523B (en) | 2013-09-03 | 2013-09-03 | Grab bucket body and continuous wall hydraulic grab |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310393510.5A CN103422523B (en) | 2013-09-03 | 2013-09-03 | Grab bucket body and continuous wall hydraulic grab |
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| Publication Number | Publication Date |
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| CN103422523A true CN103422523A (en) | 2013-12-04 |
| CN103422523B CN103422523B (en) | 2016-05-04 |
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2013
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| CN2913468Y (en) * | 2006-06-23 | 2007-06-20 | 上海金泰工程机械有限公司 | Grappling bucket body for weighted underground sequential wall |
| CN201588236U (en) * | 2009-12-01 | 2010-09-22 | 河南省三力机械制造有限公司 | Hydraulic grab for construction of underground continuous wall and grab machine |
| CN202324025U (en) * | 2011-12-05 | 2012-07-11 | 上海中联重科桩工机械有限公司 | Underground continuous wall hydraulic grab bucket |
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| CN103422523B (en) | 2016-05-04 |
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