CN103422523B - Grab bucket body and continuous wall hydraulic grab - Google Patents
Grab bucket body and continuous wall hydraulic grab Download PDFInfo
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- CN103422523B CN103422523B CN201310393510.5A CN201310393510A CN103422523B CN 103422523 B CN103422523 B CN 103422523B CN 201310393510 A CN201310393510 A CN 201310393510A CN 103422523 B CN103422523 B CN 103422523B
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Abstract
The invention discloses a kind of grab bucket body and continuous wall hydraulic grab, relate to technical field of engineering machinery. Solve the technical problem that the degree of depth is more shallow, Grasping skill is not strong of invading operation medium when prior art exists operation. The grab bucket body that the embodiment of the present invention provides, comprises bucket body and at least one bucket tooth being fixedly connected with bucket body, wherein: the intrusion angle of bucket tooth is 60 °～80 °. The continuous wall hydraulic grab that the embodiment of the present invention provides comprises 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 grab bucket bodies is all connected with bearing bearing pin separately; Hydraulic thrust mechanism is connected with grab bucket body, and hydraulic thrust mechanism can drive two grab bucket bodies to turn to closed position or open position with respect to bearing. The present invention can be in the time that grab bucket body be invaded operation medium, deepens the degree of depth of grab bucket body intrusion operation medium, strengthens the Grasping skill of grab bucket body to operation medium.
Description
Technical field
The present invention relates to technical field of engineering machinery, relating in particular to a kind of grab bucket body and arrange shouldThe continuous wall hydraulic grab of grab bucket body.
Background technology
The grab bucket body of continuous wall hydraulic grab is made up of struggle against body and bucket tooth two parts, main when operationBe divided into two stages: deadweight fall stage and hydraulic pressure close the bucket stage. In deadweight fall stage, grabBucket body is flared to maximum angle and invades operation medium (operation medium by the gravity of himselfAlso referred to as: crawled medium) inside; And closing the bucket stage at hydraulic pressure, grab bucket body closes bucket at hydraulic pressureUnder the effect of moment, realize the crawl of closing bucket process the medium that fulfils assignment.
In prior art, the outline of the bucket body of grab bucket body is that circular arc type shape (is called for short: circular arcShape), the bucket figure shape of circular arc type shape is defined as: from top to bottom in arc outline and revolutionDistance in the heart remains unchanged, that is: R1=R2=R3=......, the intrusion angle of bucket tooth (or claim:Angle of penetration) smaller, the intrusion angle of bucket body noseplate is to be less than the acute angle of 85 °.
At least there is following technical problem in prior art:
In prior art, because the grab bucket body structure design in continuous wall hydraulic grab is unreasonableCause equipment in the time of operation, to invade that the degree of depth of operation medium is more shallow, Grasping skill is not strong.
Summary of the invention
The object of the invention is to propose a kind of body and the diaphragm wall liquid of this grab bucket body is set of grabbing bucketPress grab bucket, solved when prior art exists operation, invade the degree of depth of operation medium more shallow, captureIndifferent technical problem.
For achieving the above object, the invention provides following technical scheme:
The grab bucket body that the embodiment of the present invention provides, comprises bucket body and is fixedly connected with described bucket bodyAt least one bucket tooth, 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 comprise successively connected arc plate,Middle base plate and noseplate, be fixedly connected with bucket tooth described at least one, institute on described noseplateThe intrusion angle of stating 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 is along approaching described bucketThe direction radius of gyration of tooth tooth top increases gradually.
At one preferably or alternatively in embodiment, the outline of described arc plate, described middle base plateOutline and the outline of described noseplate jointly surround the described outline of described bucket body.
At one preferably or alternatively in embodiment, on described noseplate, described middle base plate separatelyAll be fixedly connected with at least two described bucket tooths.
At one preferably or alternatively in embodiment, described bucket body also comprise left plate, right plate,Left side plate and right side plate, described arc plate and middle base plate are connected in described left plate and right plateBetween, described noseplate is connected between described left side plate and described right side plate, described left plateOutline and the outline of described right plate along the direction radius of gyration that approaches described bucket tooth tooth topIncrease gradually.
At one preferably or alternatively in embodiment, the inner surface of described bucket tooth is curved surface or tiltedlyFace, the intrusion angle of described bucket tooth be described bucket tooth while invading ground described in the inner surface of bucket toothAngle between central region and described horizontal plane.
The continuous wall hydraulic grab that the embodiment of the present invention provides, comprises bearing, hydraulic thrust mechanismAnd two grab bucket bodies that the arbitrary technical scheme of the present invention provides, wherein:
The bucket body of two described grab bucket bodies is all connected with described bearing bearing pin separately;
Described hydraulic thrust mechanism is connected with described grab bucket body, and described hydraulic thrust mechanism energyDrive two described grab bucket bodies to turn 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 °, bucketThe intrusion angle of tooth is preferably 63 °～70 °, and this intrusion angle is effectively protecting bucket tooth not brokenDisconnected time, further strengthened grab bucket body the invades operation medium degree of depth in deadweight fall stage withAnd the ability of closing bucket stage crawl operation medium at hydraulic pressure, there is work so solved prior artWhen industry, invade the technical problem that the degree of depth is more shallow, Grasping skill is not strong of operation medium.
In the optimal technical scheme that the embodiment of the present invention provides, grab bucket body bucket body be shaped as fromThe upper type that the extends out shape increasing gradually to the lower radius of gyration (R1, R2, R3...... increase successively),Further strengthen grab bucket body closes bucket stage continuation intrusion operation medium ability at hydraulic pressure;
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 °, before the bucket body of this intrusion angleBase plate further strengthens grab bucket and closes the bucket stage at hydraulic pressure and capture the ability of operation medium.
Optimization by above three aspects improves, ensure bucket tooth do not broken disconnected in, bothStrengthen the ability of grab bucket intrusion operation medium, having improved again the ability of grab bucket crawl operation medium,The operating efficiency of hydraulic grab has increased significantly.
In sum, optimal technical scheme provided by the invention is compared with prior art at least passableProduce following technique effect:
1, infiltration capability is strong: by optimizing the intrusion angle of bucket tooth, make grab bucket under deadweightFalling, the stage, to invade the ability of operation medium stronger; The structure of bucket body is optimized by original circular arcFor extending out type, strengthen bucket stage continuation intrusion operation medium is closed in grab bucket ability at hydraulic pressure.
2, Grasping skill is strong: by optimizing the intrusion angle of bucket tooth, grab bucket is closed at hydraulic pressureThe Grasping skill in bucket stage is stronger; By the intrusion angle of grab bucket body noseplate by original acute angle angleDegree is optimized for 88～95 °, makes grab bucket close the Grasping skill in bucket stage at hydraulic pressure stronger.
3, grab bucket body structure is simple, easy to process, with low cost: compared with former grab bucket body,The present invention has just optimized the bucket curve shape of body and the angle of penetration of bucket tooth and noseplate, baseOn this, retain simple, the easy to process advantage of former grab bucket body structure, and do not increased anyManufacturing cost.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the applicationA part, schematic description and description of the present invention is used for explaining the present invention, not structureBecome inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 invades after operation medium for the grab bucket body that provides in prior art, deadweight fall stageThe stressed schematic diagram of bucket tooth;
Fig. 2 invades after operation medium for the grab bucket body providing in prior art, and hydraulic pressure closes the bucket stageThe stressed schematic diagram of 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 body along A-A line of grabbing bucket shown in Fig. 5;
Fig. 7 is the cross-sectional schematic of body along B-B line of grabbing bucket shown in Fig. 5;
The continuous wall hydraulic grab that Fig. 8 provides for the embodiment of the present invention starts to invade operation mediumTime schematic diagram;
The grab bucket body that Fig. 9 provides for the embodiment of the present invention is invaded in the process of operation medium, fromThe stressed schematic diagram of heavy fall stage bucket tooth;
The grab bucket body that Figure 10 provides for the embodiment of the present invention is invaded in the process of operation medium,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; θ1, bucket tooth intrusion angle; θ2, noseplateIntrusion angle; R1, the radius of gyration; R2, the radius of gyration; R3, the radius of gyration.
Detailed description of the invention
Can understand content of the present invention with reference to accompanying drawing Fig. 1～Figure 10 and word content belowAnd distinctive points between the present invention and prior art. Below by accompanying drawing and enumerate the present inventionThe mode of some optional embodiment, to technical scheme of the present invention (comprising optimal technical scheme)Be described in further detail. It should be noted that: any technical characterictic in the present embodiment,Any technical scheme be all a kind of in the technical characterictic of plurality of optional or optional technical scheme orSeveral, cannot be exhaustive of the present invention all alternative in presents in order to describe succinct needsTechnical characterictic and alternative technical scheme, be also not easy to the embodiment of each technical charactericticAll emphasize 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 by provided by the invention any twoIndividual or more technological means or technical characterictic combine mutually and obtain new technical scheme.Any technical characterictic in the present embodiment and any technical scheme all do not limit protection of the present inventionScope, protection scope of the present invention should comprise that those skilled in the art do not pay creative workThe thinkable any alternate embodiments of institute and those skilled in the art are by provided by the inventionAnticipate that two or more technological means or technical characterictic combine mutually and the new technology that obtainsScheme.
The embodiment of the present invention provides that a kind of degree of depth of invading operation medium is dark, Grasping skill is strongGrab bucket body and the continuous wall hydraulic grab of this grab bucket body is set.
Technical scheme provided by the invention is carried out more detailed below in conjunction with Fig. 3～Figure 10Set forth.
As shown in Fig. 3～Figure 10, the grab bucket body that the embodiment of the present invention provides, comprise bucket body andAt least one bucket tooth 14 being fixedly connected with bucket body, wherein: the intrusion angle θ of bucket tooth 141For60 °～80 °, be preferably 63 °～70 °. The intrusion angle θ 1 of bucket tooth 14 is defined as: bucketWhen tooth 14 starts to invade operation medium, (inner side) working surface and the horizontal plane of bucket tooth 14For example, angle between (: level ground). This intrusion angle θ1Effectively protecting bucket tooth 14 notBroken and further strengthened grab bucket body disconnected time and invade operation medium 17 in deadweight fall stageThe degree of depth and close the bucket stage at hydraulic pressure and capture the ability of operation medium 17.
At one preferably or alternatively in embodiment, bucket body comprise successively connected arc plate 10, inBase plate 11 and noseplate 12, be fixedly connected with at least one bucket tooth 14 on noseplate 12, frontThe intrusion angle θ of base plate 122Be 85 °～100 °, be preferably 88 °～95 °. Noseplate 12Intrusion angle θ 2 be defined as: when bucket tooth 14 starts to invade operation medium, noseplate 12For example, angle between inner surface and horizontal plane (: level ground). Before the bucket body of this intrusion angleBase plate 12 ability that further bucket stage crawl operation medium 17 is closed in enhancing grab bucket at hydraulic pressure.
At one, preferably or alternatively in embodiment, the outline of bucket body is along approaching bucket tooth 14 teethThe direction radius of gyration on top increases (R gradually1<R2<R3). Be preferably: arc plate 10, the middle endThe outline of plate 11 and noseplate 12 surrounds the outline of bucket body jointly. The foreign steamer of this shapeExterior feature has strengthened arc plate 10, middle base plate 11 and noseplate 12 and even whole grab bucket is closed bucket at hydraulic pressureStage continues to invade the ability of operation medium 17.
Preferably or alternatively in embodiment, equal separately on noseplate 12, middle base plate 11 at oneBe fixedly connected with at least two (being preferably two) bucket tooths 14. Bucket body also comprise 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 in a left sideBetween side plate 2 and right plate 1, noseplate 12 is connected between left side plate 13 and right side plate 7,The outline of left plate 2 and right plate 1 along the direction radius of gyration that approaches bucket tooth 14 tooth tops graduallyIncrease. The outline of this shape has strengthened left plate 2 and right plate 1 and even whole grab bucket at liquidPress off the continuation of bucket stage and invade the ability of operation medium 17.
At one preferably or alternatively in embodiment, the inner surface of bucket tooth 14 is curved surface or tiltedlyFace, is preferably curved surface, the intrusion angle θ of bucket tooth 141Bucket tooth while invading ground for bucket tooth 14For example, angle between the central region of 14 inner surface and horizontal plane (: level ground). ShouldStructure can ensure that (root is bucket tooth 14 and noseplate 12 for bucket tooth 14 tops and rootThe position being fixedly connected with) under the prerequisite of intensity, effectively increase the intrusion angle θ of bucket tooth 141。
The continuous wall hydraulic grab that the embodiment of the present invention provides, comprises bearing as shown in Figure 815, hydraulic thrust mechanism (hydraulic thrust mechanism comprises hydraulic thrust connecting rod 16 and for being withThe hydraulic cylinder that hydrodynamic pressure thrust link 16 is reciprocating) and two arbitrary technical sides of the present inventionThe grab bucket body that case provides, wherein:
The bucket body of two grab bucket bodies is all connected with bearing 15 bearing pins separately;
Hydraulic thrust mechanism is connected with grab bucket body, and hydraulic thrust mechanism can drive two grab bucketsBody turns to closed position or open position as shown in Figure 8 with respect to bearing 15.
Can in the time that two grab bucket bodies turn to open position as shown in Figure 8 with respect to bearing 15To utilize self gravitation to invade operation medium 17, when two grab bucket bodies rotate with respect to bearing 15During to closed position, can implement hydraulic pressure closes bucket operation and captures and enter the operation medium of grab bucket in body17。
Below concentrate explanation optimal technical scheme provided by the invention and obtained technology effect thereofReally:
The grab bucket body that the embodiment of the present invention provides is mainly made up of following 14 parts: right sidePlate 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, middle base plate 11, noseplate 12, left side plate 13, bucketTooth 14, and grab bucket body is connected with bearing 15 by bearing pin, by hydraulic thrust connecting rod 16What the active force of hydraulic cylinder was converted into grab bucket body closes bucket moment.
Arc plate 10, middle base plate 11, noseplate 12 threes have surrounded the curve shape of bucket body jointly,And form the basic framework of bucket body together with right plate 1, left plate 2; Wherein middle base plate 11With several bucket tooths 14 of meeting welding on noseplate 12, and the below of right plate 1 and left plate 13Can weld respectively a side plate, respectively called after right side plate 7 and left side plate 13. 5, round steelStrengthen the effect of bucket body intensity; 6 of limiting plates restriction grab bucket body maximum opening angles and knock soilEffect; The pin shaft hole that Upper shaft sleeve 3 is connected with bearing 15 for grab bucket body, 4 of upper ring plates are strengthened shouldThe effect of pin shaft hole intensity; The bearing pin that Lower shaft sleeve 9 is connected with hydraulic thrust connecting rod 16 for grab bucket bodyHole, 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, do not change continuous wall hydraulic grab itsUnder the condition of his part-structure, study structure and the bucket tooth 14 to grab bucket body by construction technologyIntrusion angle θ1Be optimized, optimum results is: first, and by the intrusion angle of bucket tooth 14θ1Be adjusted into 63 °～70 °, do not broken in disconnected and further increase at effective protection bucket tooth 14Strong grab bucket body is invaded the degree of depth of operation medium 17 and closes bucket at hydraulic pressure in deadweight fall stageStage captures the ability of operation medium 17; Then, by the circular arc type shape of the body that struggles against in prior art(the bucket figure shape of circular arc type is defined as: the distance between arc outline and the centre of gyration from top to bottomFrom remaining unchanged, that is: R1=R2=R3=......) be optimized for from top to bottom the radius of gyration (R1,R2, R3...... increase successively) type that the extends out shape that increases gradually, extend out the bucket body shape definition of typeFor the distance between arc outline and the centre of gyration from top to bottom increases gradually, that is:R1 < R2 < R3 < .... The bucket figure shape that extends out type can further strengthen grab bucket body and close at hydraulic pressureThe bucket stage continues to invade the ability of operation medium 17; Finally, by the intrusion of bucket body noseplate 12Angle θ2Be adjusted into 88 °～95 ° by the acute angle that is less than 85 ° in prior art, further strengthenGrab bucket close the bucket stage at hydraulic pressure and capture the ability of operation medium 17. By above three aspectsOptimize improve, ensure bucket tooth 14 do not broken disconnected in, both having strengthened grab bucket invade operation be situated betweenThe ability of matter 17, having improved again grabs bucket captures the ability of operation medium 17, the work of hydraulic grabIndustry efficiency has increased significantly.
Comparison diagram 1 can be found out with Fig. 9: deadweight fall stage grab bucket body is of the present invention in employingBefore and after technical scheme optimization grab bucket body, the stressed contrast situation on bucket tooth 14 surfaces of grab bucket body, itsMiddle spheric granules is operation medium 17 to be captured, and utilizes 17, operation medium and didIndustry medium 17 represents that with the thickness of a line segment at grab bucket indirect contact, surface place this point contactsThe size of power, the direction of line segment represents the direction of this contact force. Through observation shows that: at oneselfHeavy fall stage, the bucket tooth of the grab bucket body of not optimizing is the bucket tooth of the grab bucket body that provides of prior artCrown place is stressed relatively little, and left surface does not stress completely, and the stressed maximum of right flank, grab bucketEntirety is subject to resistance larger; The bucket tooth 14 crown places of the grab bucket after the optimization that the embodiment of the present invention providesActive force maximum, increases to some extent although left surface is stressed, and the stressed of right flank reduces moreMany, so grab bucket body entirety is stressed relatively little. The active force of bucket tooth 14 peripheries after optimization dividesCloth rule has obtained very large improvement, the resistance of medium that grab bucket is subject in deadweight fall stageLess, invade the enforcement of moving so be very beneficial for bucket tooth 14. In addition will grab bucket at the front end of body,Intrusion angle (invading angle also claims: the angle of penetration) θ of plate 122Be optimized for 88 °～95 °,Make the noseplate 12 that closes bucket stage grab bucket body at hydraulic pressure can clench crawled operationMedium 17, is conducive to the raising of operating efficiency.
Comparison diagram 2 can be found out with Figure 10: close the bucket stage at hydraulic pressure, provided by the invention grabbingBucket body mainly occurs closely to contact with operation medium 17 with bucket tooth 14 places at noseplate 12, andAll do not come in contact in other places in addition. This in crawl process of grab bucket bodyForce Distribution is very beneficial for grab bucket and continues to invade operation medium 17. In addition, from identicalCrawl amount simulation result contrast under part is upper known, and the single of optimizing grab bucket body captures efficiency at leastImprove more than 25%.
The disclosed arbitrary technical scheme of the invention described above unless otherwise stated, if it disclosesNumber range, so disclosed number range is preferred number range, any this areaTechnical staff is appreciated that preferred number range is only technology in many enforceable numerical valueThe numerical value that effect is obvious or representative. Because numerical value is more, cannot be exhaustive, soThe present invention just discloses part numerical value to illustrate technical scheme of the present invention, and, above-mentioned rowThe numerical value of lifting should not form the restriction to the invention protection domain.
If used the word such as " first ", " second " to limit parts herein,Those skilled in the art should know: the use of " first ", " second " is only used to justIn describing above, parts are distinguished as not having outside Stated otherwise, above-mentioned word is not specialImplication.
Meanwhile, if the invention described above discloses or has related to parts or the knot of connection fastened to each otherMember, so, unless otherwise stated, is fixedly connected with and can be understood as: can dismantle and fixConnect (for example using bolt or screw to connect), also can be understood as: be non-removable fixingConnect (for example rivet, weld), certainly, connection fastened to each other can be also integral type structure(for example use casting technique is integrally formed to be created) institute replaces (obviously cannot adopt oneExcept forming technology).
In addition, applied for representing position in the disclosed arbitrary technical scheme of the invention described aboveThe term of relation or shape unless otherwise stated its implication comprises with it approximate, similar or approachingState or shape. Arbitrary parts provided by the invention can be both by multiple independent partsAssemble 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 technical scheme of the present inventionNon-to its restriction; Although the present invention is had been described in detail with reference to preferred embodiment, underThe those of ordinary skill in field is to be understood that: still can enter the specific embodiment of the present inventionRow is revised or part technical characterictic is equal to replacement; And do not depart from technical solution of the present inventionSpirit, it all should be encompassed in the middle of the technical scheme scope of request of the present invention protection.
Claims (7)
1. a grab bucket body, is characterized in that, comprises bucket body and is fixedly connected with described bucket bodyBucket tooth (14), wherein: the intrusion angle (θ of described bucket tooth (14)1) be 60 °～80 °;
Described bucket body comprises successively connected arc plate (10), middle base plate (11) and noseplate(12), on described noseplate (12), be fixedly connected with described bucket tooth (14), the described front endIntrusion angle (the θ of plate (12)2) be 85 °～100 °;
The outline of described bucket body along the direction radius of gyration that approaches described bucket tooth (14) tooth top byCumulative large;
On described noseplate (12), described middle base plate (11), be all fixedly connected with at least separatelyTwo described bucket tooths (14).
2. grab bucket body according to claim 1, is characterized in that, the invading of described bucket toothEntering angle is 63 °～70 °.
3. grab bucket body according to claim 1, is characterized in that, described noseplateInvading angle is 88 °～95 °.
4. grab bucket body according to claim 1, is characterized in that, outside described arc plateThe outline of profile, described middle base plate and the outline of described noseplate surround described bucket jointlyThe described outline of body.
5. grab bucket body according to claim 1, is characterized in that, described bucket body also wrapsDraw together left plate, right plate, left side plate and right side plate, described arc plate and middle base plate are connected inBetween described left plate and right plate, described noseplate is connected in described left side plate and described the rightBetween plate, the outline of described left plate and the outline of described right plate are along approaching described bucket toothThe direction radius of gyration of tooth top increases gradually.
6. grab bucket body according to claim 5, is characterized in that, in described bucket toothSurface is curved surface or inclined-plane, the intrusion angle of described bucket tooth be described bucket tooth while invading ground described inAngle between the central region of the inner surface of bucket tooth and described horizontal plane.
7. a continuous wall hydraulic grab, is characterized in that, comprises bearing, hydraulic thrust machineStructure and two grab bucket bodies as described in as arbitrary in claim 1-6, wherein:
The bucket body of two described grab bucket bodies is all connected with described bearing bearing pin separately;
Described hydraulic thrust mechanism is connected with described grab bucket body, and described hydraulic thrust mechanism energyDrive two described grab bucket bodies to turn to closed position or open position with respect to described bearing.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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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| CN103422523A CN103422523A (en) | 2013-12-04 |
| CN103422523B true CN103422523B (en) | 2016-05-04 |
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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 | Hydraulic grab for underground continuous wall |
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| CN203546789U (en) * | 2013-09-03 | 2014-04-16 | 徐工集团工程机械股份有限公司 | Grab bucket body and continuous wall hydraulic grab bucket |
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2013
- 2013-09-03 CN CN201310393510.5A patent/CN103422523B/en active Active
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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 | Hydraulic grab for underground continuous wall |
| CN202989998U (en) * | 2012-12-28 | 2013-06-12 | 上海三一重机有限公司 | Digging bucket with detachable bottom plate |
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