CN202324025U - Underground continuous wall hydraulic grab bucket - Google Patents
Underground continuous wall hydraulic grab bucket Download PDFInfo
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- CN202324025U CN202324025U CN2011205002128U CN201120500212U CN202324025U CN 202324025 U CN202324025 U CN 202324025U CN 2011205002128 U CN2011205002128 U CN 2011205002128U CN 201120500212 U CN201120500212 U CN 201120500212U CN 202324025 U CN202324025 U CN 202324025U
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- elevator
- stress point
- continuous wall
- cable wire
- installing hole
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- 239000012530 fluid Substances 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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Abstract
The utility model discloses an underground continuous wall hydraulic grab bucket, wherein, this underground continuous wall hydraulic grab bucket include hoisting machine structure (1) and first hoist (2) and second hoist (3) that can synchronous operation, first hoist with the second hoist respectively through first cable wire (2a) and second cable wire (3a) connect in hoisting machine constructs, hoisting machine constructs including compensating beam (4), compensating beam is including being used for bearing first bearing point (P1), the third bearing point (P3) that is used for bearing the tensile second bearing point (P2) of tensile that the second hoist was applyed and is used for bearing the tensile third bearing point (P2) of lifting weight (7), the third bearing point is located first bearing point with on the perpendicular bisector of the line of second bearing point. The first winch and the second winch synchronously lift the hoisting mechanism as much as possible, and the balance beam can weaken the deflection of the hoisting weight caused by the unbalanced tension of the first winch and the second winch.
Description
Technical field
The utility model relates to subterranean continuous wall hydraulic grab, particularly, relates to a kind of subterranean continuous wall hydraulic grab that uses double hoisting.
Background technology
In the prior art, subterranean continuous wall hydraulic grab adopts movable pulley usually and through cable wire the monovolume that movable pulley applies pulling force is raised the snatch lift heavy.But the power of independent elevator is limited, and usually about 150kw, when lift heavy and grab bucket dead weight when big (for example 20 tons), then maximum lifting velocity can only reach 45m/min, can't reach the operation requirement.In addition, movable pulley need get into drilling mud practice, and the seal request of movable pulley is higher, is difficult to guarantee.Though can adopt double hoisting to overcome the problems referred to above, use double hoisting to exist the hoisting velocity of two elevators asynchronous and/or pulling force is unbalanced and cause the problem of lift heavy deflection thus.
The utility model content
The purpose of the utility model provides a kind of subterranean continuous wall hydraulic grab that can avoid or eliminate the asynchronous problem of double hoisting.
To achieve these goals; The utility model provides a kind of subterranean continuous wall hydraulic grab; Wherein, This subterranean continuous wall hydraulic grab comprises hoisting mechanism and first elevator and second elevator that can simultaneously operating; Said first elevator and said second elevator are connected in said hoisting mechanism through first cable wire and second cable wire respectively; Said hoisting mechanism comprises equalizer bar, and said equalizer bar comprises first stress point that is used to bear the pulling force that said first elevator applies, be used to bear second stress point of the pulling force that said second elevator applies and be used to bear the 3rd stress point of the pulling force of lift heavy, and said the 3rd stress point is positioned on the perpendicular bisector of line of said first stress point and said second stress point.
Preferably; Said hoisting mechanism comprises first joint and second joint that is used to be connected said second cable wire that is used to connect said first cable wire; Said equalizer bar has first installing hole and second installing hole that is used to be connected said second joint that is used to connect said first joint; Said first installing hole and said second installing hole limit said first stress point and said second stress point respectively; Said equalizer bar also comprises the 3rd installing hole that is used to connect lift heavy, and said the 3rd installing hole limits said the 3rd stress point.
Preferably; Said subterranean continuous wall hydraulic grab comprises first hydraulic motor and second hydraulic motor that is used to drive said second elevator that is used to drive said first elevator, and the specification of said first hydraulic motor and said second hydraulic motor is identical and parallelly connected through fluid pressure line.
Pass through technique scheme; Can promote hoisting mechanism with identical speed synchronization ground as far as possible through the first synchronous elevator with second elevator; Can weaken by the unbalanced lift heavy deflection that causes of the pulling force of first elevator and second elevator through equalizer bar; Therefore, the subterranean continuous wall hydraulic grab of the utility model can promote lift heavy reposefully.
Other feature and advantage of the utility model will partly specify in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is the further understanding that is used to provide the utility model, and constitutes the part of manual, is used to explain the utility model with the following specific embodiment, but does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is a kind of structural representation of embodiment of the subterranean continuous wall hydraulic grab of explanation the utility model;
Fig. 2 is the sketch map of the syndeton of hoisting mechanism and cable wire in the key diagram 1, lift heavy;
Fig. 3 is a kind of structural representation of embodiment of the hoisting mechanism of explanation the utility model;
Fig. 4 is the schematic diagram of explanation the utility model;
Fig. 5 is the schematic diagram of explanation equalizer bar.
Description of reference numerals
1: 2: the first elevator 2a of hoisting mechanism: first cable wire
3: the second elevator 3a: second cable wire
4: equalizer bar 4a: the first installing hole 4b: the second installing hole 4c: the 3rd installing hole
6: the second joints 7 of 5: the first joints: 8: the first hydraulic motors of lift heavy
9: the second hydraulic motor R: pulley
P1: the first stress point P2: the second stress point P3: the 3rd stress point
F1: the pulling force G of 2: the second cable wires of the tensile force f of first cable wire: the gravity of lift heavy
The length θ of L:P1 P3: the inclination angle Ψ of equalizer bar: the angle of P1P3 and P1P2
The specific embodiment
Be elaborated below in conjunction with the specific embodiment of accompanying drawing to the utility model.Should be understood that the specific embodiment described herein only is used for explanation and explains the utility model, is not limited to the utility model.
In the utility model, not do under the situation of opposite explanation, the noun of locality of use typically refers to reference to upper and lower, left and right shown in the drawings like " upper and lower, left and right "; " inside and outside " is meant inside and outside with respect to the profile of each parts itself.
The utility model provides a kind of subterranean continuous wall hydraulic grab; Wherein, This subterranean continuous wall hydraulic grab comprises hoisting mechanism 1 and first elevator 2 and second elevator 3 that can simultaneously operating; Said first elevator 2 is connected in said hoisting mechanism 1 through the first cable wire 2a and the second cable wire 3a respectively with said second elevator 3; Said hoisting mechanism 1 comprises equalizer bar 4; Said equalizer bar 4 comprises the first stress point P1 that is used to bear the pulling force that said first elevator 2 applies, be used to bear the second stress point P2 of the pulling force that said second elevator 3 applies and be used to bear the 3rd stress point P3 of the pulling force of lift heavy 7, and said the 3rd stress point P3 is positioned on the perpendicular bisector of line of said first stress point P1 and the said second stress point P2.
As depicted in figs. 1 and 2, the subterranean continuous wall hydraulic grab of the utility model applies pulling force through first cable wire 2a of first elevator 2 and the second cable wire 3a of second elevator 3 to hoisting mechanism 1, with lifting lift heavy 7.
The advantage of the utility model is described with schematic diagram shown in Figure 5 below.As shown in Figure 5; Triangle so that the line of the first stress point P1, the second stress point P2 and the 3rd stress point P3 constitutes is schematically represented equalizer bar 4; The stressing conditions of equalizer bar 4 is: receive first tensile force f 1 straight up that the first cable wire 2a applies at the first stress point P1; Receive second tensile force f 2 straight up that the second cable wire 3a applies at the second stress point P2, receive the active force G straight down that lift heavy 7 applies at the 3rd stress point P3, the size of this active force is the gravity of lift heavy 7.Wherein, the triangle P1P2P3 of three stress point formations is an isosceles triangle, and the long P1P3 of waist is L, and the base angle is the angle Ψ of P1P3 and P1P2.
Suppose equalizer bar 4 because of the varying in size of first tensile force f 1 and second tensile force f 2 (deflection of F1=a * F2), as shown in Figure 5, form the inclination angle theta of equalizer bar.Because equalizer bar 4 keeps above-mentioned deflected condition, so the moment of flexure summation that applies of suffered each active force of equalizer bar 4 is 0.Therefore, be that benchmark calculates and can know with the P3 point, L * cos (ψ-θ) * F1=L * cos (ψ+θ) * F2; Can get a=cos (ψ+θ)/cos (ψ-θ) thus.
By the trigonometric function formula:
Cos (ψ+θ)=cos ψ cos θ-sin ψ sin θ and
cos(ψ-θ)＝cosψcosθ+sinψsinθ，
Can get: the ctg ψ of tan θ=(1-a/1+a).
Wherein, general ψ gets a constant value between 0-90 °.
Therefore, when a is during greater than 1 numerical value, tan θ is less than 0, and promptly θ is less than 0 ° (position that is P1 is higher than P2); When a is during less than 1 numerical value, tan θ is greater than 0, and promptly θ is greater than 0 ° (position that is P2 is higher than P1); When a was 1, θ equaled 0 ° (position that is P1 and P2 is concordant).This shows that F1 and F2 differ bigger (being that a is very big or very little), | tan θ | big more, promptly inclination angle theta is big more.Use first elevator 2 that to handle synchronously and second elevator 3 of the utility model that F1 and F2 (deviation is from machining error) very nearly the same can be provided; Equalizer bar can guarantee that in the lifting process inclination angle theta is almost 0 °, so lift heavy 7 basically can deflection.
Wherein, hoisting mechanism 1 can form various suitable structures, with through being connected to the first cable wire 2a, the second cable wire 3a and lift heavy 7.For example; In embodiment shown in Figure 3; Said hoisting mechanism 1 can comprise first joint 5 and second joint 6 that is used to be connected the said second cable wire 3a that is used to connect the said first cable wire 2a; Said equalizer bar 4 has the first installing hole 4a and the second installing hole 4b that is used to be connected said second joint 6 that is used to connect said first joint 5; Said first installing hole 4a and the said second installing hole 4b limit said first stress point P1 and the said second stress point P2 respectively, and said equalizer bar 4 also comprises the 3rd installing hole 4c that is used to connect lift heavy 7, and said the 3rd installing hole 4c limits said the 3rd stress point P3.Wherein, the first stress point P1, the second stress point P2 and the 3rd stress point P3 can be respectively the centers of circle of the circular cross-section that is arranged in front end face (being the end face of Fig. 3 towards direction of observation) of the first installing hole 4a, the second installing hole 4b and the 3rd installing hole 4c.
In addition, for realizing the simultaneously operating of first elevator 2 and second elevator 3, those skilled in the art can adopt various suitable modes.Preferably; As shown in Figure 4; Said subterranean continuous wall hydraulic grab can comprise first hydraulic motor 8 and second hydraulic motor 9 that is used to drive said second elevator 3 that is used to drive said first elevator 2, and the specification of said first hydraulic motor 8 and said second hydraulic motor 9 is identical and parallelly connected through fluid pressure line.
Wherein, First elevator 2, second elevator 3, first hydraulic motor 8, second hydraulic motor 9 and fluid pressure line can be installed on the chassis with pulpit of subterranean continuous wall hydraulic grab, and the first cable wire 2a and the second cable wire 3a can walk around pulley R respectively and be connected to hoisting mechanism 1.
More than combine accompanying drawing to describe the preferred implementation of the utility model in detail; But; The utility model is not limited to the detail in the above-mentioned embodiment; In the technical conceive scope of the utility model, can carry out multiple simple variant to the technical scheme of the utility model, these simple variant all belong to the protection domain of the utility model.
Need to prove that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment under reconcilable situation, can make up through any suitable manner.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between the various embodiment of the utility model, as long as its thought without prejudice to the utility model, it should be regarded as content disclosed in the utility model equally.
Claims (3)
1. subterranean continuous wall hydraulic grab; It is characterized in that; This subterranean continuous wall hydraulic grab comprises hoisting mechanism (1) and first elevator (2) and second elevator (3) that can simultaneously operating; Said first elevator (2) and said second elevator (3) are connected in said hoisting mechanism (1) through first cable wire (2a) and second cable wire (3a) respectively; Said hoisting mechanism (1) comprises equalizer bar (4); Said equalizer bar (4) comprises first stress point (P1) that is used to bear the pulling force that said first elevator (2) applies, be used to bear second stress point (P2) of the pulling force that said second elevator (3) applies and be used to bear the 3rd stress point (P3) of the pulling force of lift heavy (7), and said the 3rd stress point (P3) is positioned on the perpendicular bisector of line of said first stress point (P1) and said second stress point (P2).
2. subterranean continuous wall hydraulic grab according to claim 1; It is characterized in that; Said hoisting mechanism (1) comprises first joint (5) and second joint (6) that is used to be connected said second cable wire (3a) that is used to connect said first cable wire (2a); Said equalizer bar (4) has first installing hole (4a) and second installing hole (4b) that is used to be connected said second joint (6) that is used to connect said first joint (5); Said first installing hole (4a) and said second installing hole (4b) limit said first stress point (P1) and said second stress point (P2) respectively; Said equalizer bar (4) also comprises the 3rd installing hole (4c) that is used to connect lift heavy (7), and said the 3rd installing hole (4c) limits said the 3rd stress point (P3).
3. subterranean continuous wall hydraulic grab according to claim 1 and 2; It is characterized in that; Said subterranean continuous wall hydraulic grab comprises second hydraulic motor (9) that is used to drive first hydraulic motor (8) of said first elevator (2) and is used to drive said second elevator (3), and the specification of said first hydraulic motor (8) and said second hydraulic motor (9) is identical and parallelly connected through fluid pressure line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205002128U CN202324025U (en) | 2011-12-05 | 2011-12-05 | Underground continuous wall hydraulic grab bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205002128U CN202324025U (en) | 2011-12-05 | 2011-12-05 | Underground continuous wall hydraulic grab bucket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202324025U true CN202324025U (en) | 2012-07-11 |
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ID=46436008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205002128U Expired - Fee Related CN202324025U (en) | 2011-12-05 | 2011-12-05 | Underground continuous wall hydraulic grab bucket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202324025U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422523A (en) * | 2013-09-03 | 2013-12-04 | 徐工集团工程机械股份有限公司 | Grab bucket body and continuous wall hydraulic grab bucket |
-
2011
- 2011-12-05 CN CN2011205002128U patent/CN202324025U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422523A (en) * | 2013-09-03 | 2013-12-04 | 徐工集团工程机械股份有限公司 | Grab bucket body and continuous wall hydraulic grab bucket |
| CN103422523B (en) * | 2013-09-03 | 2016-05-04 | 徐工集团工程机械股份有限公司 | Grab bucket body and continuous wall hydraulic grab |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20201205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |