CN104499476A - Boom rack and dynamic compaction machine - Google Patents
Boom rack and dynamic compaction machine Download PDFInfo
- Publication number
- CN104499476A CN104499476A CN201410733487.4A CN201410733487A CN104499476A CN 104499476 A CN104499476 A CN 104499476A CN 201410733487 A CN201410733487 A CN 201410733487A CN 104499476 A CN104499476 A CN 104499476A
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- CN
- China
- Prior art keywords
- arm
- strut
- tensioning mechanism
- jib
- truss arm
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a boom rack and a dynamic compaction machine. The boom rack comprises a truss boom, a support rod and a tensioning mechanism, wherein the bottom end of the support rod is connected with the truss boom; one end of the tensioning mechanism is connected with a boom tail of the truss boom; the other end of the tensioning mechanism is supported by the support rod and is connected with a boom head of the truss boom; the support rod and the tensioning mechanism are arranged on the side, far from a crane, of the truss boom. The boom rack provided by the invention has the advantages of high carrying capacity and long service life.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of jib and dynamic compaction machinery.
Background technology
Dynamic compaction machinery is mainly used in carrying out compaction treatment to loosening the soil, its operating principle is roughly: crane gear discharges hammer ram after repeatedly hammer ram being lifted to certain altitude, hammer ram falls into soil and forms powerful shock wave and heavily stressed, improves the intensity of ground thus, reduces compressibilty, improves its shock resistance, Compaction variables etc.Dynamic compaction machinery has that structure is simple, short construction period, the advantage such as applied widely, in field extensive application such as civilian construction, airport, harbour, speedway, man-made islands.
Fig. 1 shows the structure of existing dynamic compaction machinery, and the arm tail of its truss arm 1 ' is hinged on the rear portion of car body 5 '; Amplitude oil cylinder 3 ' bottom is hinged on the front portion of car body 5 ', and top is hinged on truss arm 1 ' middle part, realizes the luffing of jib; Lift cylinder 2 ' saves on arm under being fixed on truss arm 1 ', and wire rope is connected with lift heavy 4 ' by assembly pulley, realizes ramming operation.Truss arm 1 ' in the course of the work, jib center line a ', lift heavy position b ' and amplitude oil cylinder position c ' form typical cantilever beam structures, lift heavy 4 ' is made to create larger moment of flexure to truss arm 1 ', make the unbalance stress such as each main chord tube of jib, cornical and joint, jib distortion is comparatively large, seriously constrains the supporting capacity of jib.
Summary of the invention
In view of this, the present invention proposes the higher jib of a kind of supporting capacity and dynamic compaction machinery.For achieving the above object, technical scheme of the present invention is achieved in that
On the one hand, the invention provides a kind of jib, for dynamic compaction machinery, comprising: truss arm; Strut, its bottom is connected with described truss arm; Tensioning mechanism, its one end is connected with the arm tail of described truss arm, and the other end is connected with the arm head of described truss arm after supporting via described strut; Further, described strut and tensioning mechanism are all arranged at the side away from lift heavy of described truss arm.
Further, described tensioning mechanism comprises: the first tightening part and the second tightening part; One end and the described arm tail of described first tightening part are hinged, the other end and described strut hinged; First end and the described arm head of described second tightening part are hinged, the other end and described strut hinged; Described strut bottom and described truss arm hinged.
Further, described first tightening part and the second tightening part are arm-tie assembly, and described arm-tie assembly comprises some arm-ties hinged in turn.
Further, described first tightening part and the second tightening part are respectively the first stay cord and the second stay cord.
Further, the head end of described strut is provided with the holding groove that can hold described tensioning mechanism and pass through; The bottom of described strut is fixedly connected with described truss arm.
Further, described truss arm is provided with some Connection Blocks for connecting described strut, described strut is optionally connected with arbitrary described Connection Block; Or described strut is adjustable along its axial length.
Further, the number of described tensioning mechanism is two; Described strut comprises: two montants, the arranged direction of montant described in each and the arranged direction of described truss arm perpendicular; Be arranged at the cross bar between described two montants; Described in each, the top of montant is provided with support portion; One end of two described tensioning mechanisms is all connected with described arm tail, and the other end is connected with described arm head via behind two described support portions respectively.
Further, described support portion is articulated slab; Or described support portion is be provided with the supporting seat that can hold the holding groove that described tensioning mechanism passes through.
Further, described jib also comprises the first angular transducer for detecting one end that described tensioning mechanism is connected with described arm head and described truss arm angle, and for detecting the second angular transducer of described truss arm and horizontal plane angle.
On the other hand, the present invention also provides a kind of dynamic compaction machinery, and it is provided with the jib described in above-mentioned any one.
The invention provides a kind of jib.This jib is provided with truss arm, strut and tensioning mechanism.Wherein, the two ends of tensioning mechanism are connected with arm head with the arm tail of truss arm respectively, propped up, form certain angle thus between tensioning mechanism and truss arm in the middle part of it by the strut be connected with truss arm.Lift heavy pulling force is subject to, tensioning mechanism pulling force during jib work, and the effect of amplitude oil cylinder support force.Because tensioning mechanism and lift heavy are positioned at the not homonymy of truss arm, namely tensioning mechanism position and lift heavy position are positioned at the both sides of truss arm center line, thus relative to prior art, reduce the angle of total pulling force position and truss arm center line suffered by arm head, and then reduce the moment of flexure of truss arm, improve each main chord tube of jib, cornical and joint stress equalization, reduce the deflection of jib, play the supporting capacity improving jib, extend the effect in jib application life.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the dynamic compaction machinery of prior art;
Fig. 2 provides the schematic diagram of the structure of jib for the embodiment of the present invention;
Fig. 3 is the partial enlarged drawing at A place in Fig. 2;
The structural representation of strut in the jib that Fig. 4 provides for the embodiment of the present invention.
Description of reference numerals:
1 truss arm 2 strut
21 montant 22 cross bars
23 support portion 3 tensioning mechanisms
31 first tightening part 32 second tightening part
301 arm-tie 4 lift heavys
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below in conjunction with accompanying drawing, each preferred embodiment of the present invention is described further:
Refer to Fig. 2, the figure shows the structure of the jib that the embodiment of the present invention provides, this jib is used for dynamic compaction machinery, specifically comprises:
Truss arm 1;
Strut 2, its bottom is connected with truss arm 1;
Tensioning mechanism 3, its one end is connected with the arm tail of truss arm 1, and the other end is connected with the arm head of truss arm 1 after supporting via above-mentioned strut 2;
Further, strut 2 and tensioning mechanism 3 are all arranged at the side away from lift heavy 4 of truss arm 1.
In the jib structure that the embodiment of the present invention provides, the structure of truss arm 1 can be same as the prior art, therefore hereby do not repeat.Except truss arm 1, this jib is also provided with tensioning mechanism 3 and strut 2.Wherein, the two ends of tensioning mechanism 3 are connected with arm head with the arm tail of truss arm 1 respectively, propped up by the strut 2 be connected with truss arm 1 in the middle part of it, form certain angle between tensioning mechanism 3 and truss arm 1 thus, make tensioning mechanism 3 play thus and improve the stressed effect of truss arm 1.Concrete principle is as follows:
Refer to Fig. 2, lift heavy pulling force (along lift heavy position b straight down) is subject in truss arm 1 course of work, tensioning mechanism pulling force (pointing to truss arm arm tail direction along tensioning mechanism position d), and amplitude oil cylinder support force (along amplitude oil cylinder position c straight up).Because tensioning mechanism 3 and lift heavy 4 are positioned at the not homonymy (i.e. tensioning mechanism 3 and the not homonymy being positioned at truss arm 1 for the arm head pulley laying out wire rope) of truss arm 1, namely tensioning mechanism position d and lift heavy position b is positioned at the both sides of truss arm center line a, reduce the angle of total pulling force position and truss arm center line a suffered by arm head thus, and then reduce the moment of flexure of truss arm, improve each main chord tube of jib, cornical and joint stress equalization, reduce the deflection of jib, play the supporting capacity improving jib, extend the effect in jib application life.
Strut 2 in said arm shelf structure, for propping up tensioning mechanism 3, plays the effect changing tensioning mechanism 3 and truss arm 1 angle.Further, by the angle of adjustment tensioning mechanism 3 (one end be connected with arm head) with truss arm 1, realize tensioning mechanism position d and overlap with truss arm center line a with the force action line of lift heavy position b, now suffered by truss arm 1, moment of flexure is minimum.It should be noted that, the form of " support " described in the application includes but not limited to: supported by connector; Supported by plane-plane contact.
For the form supported by connector, above-mentioned tensioning mechanism 3 can comprise: the first tightening part 31 and the second tightening part 32; One end of first tightening part 31 and the arm tail of truss arm 1 hinged, the other end and strut 2 hinged; The first end of the second tightening part 32 and the arm head of truss arm 1 hinged, the other end and strut 2 hinged; Strut 2 bottom and truss arm 1 hinged.Above-mentioned hinged hinge arranged direction can be perpendicular at place vertical plane with truss.Specifically, above-mentioned first tightening part 31 and the second tightening part 32 can be arm-tie assembly, and this arm-tie assembly comprises some arm-ties 301 (referring to Fig. 3) hinged in turn.In this kind of scheme, by adjusting the number of arm-tie 301 in the first arm-tie assembly and/or the second arm-tie assembly, realize the adjustment of the first arm-tie assembly and/or the second arm-tie length component.In addition, above-mentioned first tightening part 31 and the second tightening part 32 also can be respectively the first stay cord and the second stay cord.
For the supporting form of plane-plane contact, the head end of above-mentioned strut 2 can be provided with the holding groove that can hold tensioning mechanism 3 and pass through; The bottom of strut 2 is fixedly connected with truss arm 1.Preferably, the head end of strut 2 is provided with pulley, and above-mentioned holding groove is arranged at this pulley.After one end of tensioning mechanism 3 is connected with the arm tail of truss arm 1 thus, the other end is by being connected with the arm head of truss arm 1 after this holding groove, and holding groove plays position-limiting action to swinging of tensioning mechanism 3, prevents tensioning mechanism 3 from departing from strut 2 and supports.Tensioning mechanism 3 can be arm-tie assembly or stay cord.It should be noted that, described " being fixedly connected with " is: strut 2 is connected to position after truss arm 1 and fixes, and cannot swing, be specifically as follows welding, is spirally connected, riveted joint etc.In order to ensure the bonding strength of strut 2 and truss arm 1, strut 2 preferably welds with truss arm 1.
The change of the angle of tensioning mechanism 3 (one end be connected with arm head) and truss arm 1 can be realized by the position adjusting strut 2.Such as: arranged towards arm head position by strut 2, above-mentioned angle increases, otherwise reduces.Thus, and then further the stressed of truss arm 1 is improved.For the ease of adjusting the position of strut 2, truss arm 1 can be provided with some Connection Blocks for connecting strut 2, this strut 2 is optionally connected with arbitrary Connection Block.In addition, the height of adjustment strut 2 also can realize tensioning mechanism 3 (one end be connected with arm head) and the change of the angle of truss arm 1, and such as, heightened by the height of strut 2, above-mentioned angle increases, otherwise angle reduces.In order to realize above-mentioned effect, strut 2 can be adjustable along its axial length.The length of tensioning mechanism 3 is preferably adjustable, and such as, number by increasing or reduce arm-tie 301 realizes, or employing has certain flexible stay cord realization.
The number of above-mentioned tensioning mechanism 3 is preferably two, to improve the stressed of truss arm 1 further.Accordingly, refer to Fig. 4, strut 2 can comprise: two montants 21, the arranged direction of each montant 21 and the arranged direction of truss arm 1 perpendicular; Be arranged at the cross bar 22 between two montants 21; The top of each montant 21 is provided with support portion 23; One end of two tensioning mechanisms 3 is connected with the arm tail of truss arm 1, and the other end is connected with the arm head of truss arm 1 via behind above-mentioned two support portions 23 respectively.The specific constructive form of above-mentioned support portion 23 can be selected according to supporting form.Such as: strut 2 is supported tensioning mechanism 3 by connector, then above-mentioned support portion 23 can be articulated slab (Fig. 4); And for example: strut 2 is by supporting tensioning mechanism 3 plane-plane contact, then above-mentioned support portion 23 can for being provided with the supporting seat that can hold the holding groove that tensioning mechanism 3 passes through.Further, this supporting seat can be pulley.
In addition, the stressing conditions of truss arm 1 is understood in time for the ease of operating personnel, the jib that the embodiment of the present invention provides also preferably includes: for detecting first angular transducer of one end that tensioning mechanism 3 is connected with truss arm arm head and truss arm 1 angle, and for detecting the second angular transducer of truss arm 1 and horizontal plane angle.The angle of now lift heavy and truss arm 1 can be obtained according to the second angular transducer, then obtain angle information in conjunction with the first angular transducer, the stress of now truss arm can be evaluated; Further, operating personnel can adjust strut 2 and tensioning mechanism 3 according to above-mentioned two angle informations, change tensioning mechanism 3 and the angle of truss arm 1, reach minimum value to make moment of flexure suffered by truss arm.
As shown in the above, the jib that the embodiment of the present invention provides is provided with strut and tensioning mechanism, the two ends of tensioning mechanism are connected with arm head with the arm tail of truss arm respectively, propped up, form certain angle thus between tensioning mechanism and truss arm in the middle part of it by the strut be connected with truss arm.Lift heavy pulling force is subject to, tensioning mechanism pulling force during jib work, and the effect of amplitude oil cylinder support force.Because tensioning mechanism and lift heavy are positioned at the not homonymy of truss arm, namely tensioning mechanism position and lift heavy position are positioned at the both sides of truss arm center line, thus relative to prior art, reduce the angle of total pulling force position and truss arm center line suffered by arm head, and then reduce the moment of flexure of truss arm, improve each main chord tube of jib, cornical and joint stress equalization, reduce the deflection of jib, play the supporting capacity improving jib, extend the effect in jib application life.
The embodiment of the present invention additionally provides a kind of dynamic compaction machinery, this dynamic compaction machinery is provided with any one jib above-mentioned, because any one jib above-mentioned has above-mentioned technique effect, therefore, the dynamic compaction machinery being provided with this jib also should possess corresponding technique effect, its specific implementation process is similar to the above embodiments, does not hereby repeat.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a jib, for dynamic compaction machinery, is characterized in that, comprising:
Truss arm (1);
Strut (2), its bottom is connected with described truss arm (1);
Tensioning mechanism (3), its one end is connected with the arm tail of described truss arm (1), and the other end is connected with the arm head of described truss arm (1) after supporting via described strut (2);
Further, described strut (2) and tensioning mechanism (3) are all arranged at the side away from lift heavy (4) of described truss arm (1).
2. jib according to claim 1, is characterized in that, described tensioning mechanism (3) comprising: the first tightening part (31) and the second tightening part (32); One end and the described arm tail of described first tightening part (31) are hinged, the other end and described strut (2) hinged; First end and the described arm head of described second tightening part (32) are hinged, the other end and described strut (2) hinged; Described strut (2) bottom and described truss arm (1) hinged.
3. jib according to claim 2, is characterized in that, described first tightening part (31) and the second tightening part (32) are arm-tie assembly, and described arm-tie assembly comprises some arm-ties hinged in turn (301).
4. jib according to claim 2, is characterized in that, described first tightening part (31) and the second tightening part (32) are respectively the first stay cord and the second stay cord.
5. jib according to claim 1, is characterized in that, the head end of described strut (2) is provided with the holding groove that can hold described tensioning mechanism (3) and pass through; The bottom of described strut (2) is fixedly connected with described truss arm (1).
6. jib according to claim 1, is characterized in that, described truss arm (1) is provided with some Connection Blocks for connecting described strut (2), and described strut (2) is optionally connected with arbitrary described Connection Block; Or described strut (2) is adjustable along its axial length.
7. jib according to claim 1, is characterized in that, the number of described tensioning mechanism (3) is two;
Described strut (2) comprising: two montants (21), the arranged direction of montant described in each (21) and the arranged direction of described truss arm (1) perpendicular; Be arranged at the cross bar (22) between described two montants (21); The top of montant described in each (21) is provided with support portion (23);
One end of two described tensioning mechanisms (3) is all connected with described arm tail, and the other end is connected with described arm head via after two described support portions (23) respectively.
8. jib according to claim 7, is characterized in that, described support portion (23) are articulated slab; Or described support portion (23) can hold the supporting seat of the holding groove that described tensioning mechanism (3) passes through for being provided with.
9. jib according to claim 1, it is characterized in that, described jib also comprises the first angular transducer for detecting one end that described tensioning mechanism (3) is connected with described arm head and described truss arm (1) angle, and for detecting the second angular transducer of described truss arm (1) and horizontal plane angle.
10. a dynamic compaction machinery, is characterized in that, is provided with the jib described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410733487.4A CN104499476B (en) | 2014-12-04 | 2014-12-04 | Jib and dynamic compaction machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410733487.4A CN104499476B (en) | 2014-12-04 | 2014-12-04 | Jib and dynamic compaction machinery |
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| Publication Number | Publication Date |
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| CN104499476A true CN104499476A (en) | 2015-04-08 |
| CN104499476B CN104499476B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410733487.4A Active CN104499476B (en) | 2014-12-04 | 2014-12-04 | Jib and dynamic compaction machinery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114562111A (en) * | 2022-02-14 | 2022-05-31 | 三一汽车制造有限公司 | Method, device and equipment for determining position of boom and operation machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000144704A (en) * | 1998-11-13 | 2000-05-26 | Jdc Corp | Dynamic consolidation method and dynamic consolidation device |
| KR20050115722A (en) * | 2004-06-05 | 2005-12-08 | 삼일토건(주) | Tamper equipped with towing device |
| CN202559332U (en) * | 2012-01-13 | 2012-11-28 | 山河智能装备股份有限公司 | Multi-point rigid supporting mechanism of dynamic compaction machine |
| CN202969367U (en) * | 2012-10-30 | 2013-06-05 | 中国一冶集团有限公司 | Spring buffer device for crawler crane under dynamic compaction |
| CN203213094U (en) * | 2013-03-28 | 2013-09-25 | 三一重工股份有限公司 | Dynamic compaction machine convenient for enhancing compaction energy |
| CN204326053U (en) * | 2014-12-04 | 2015-05-13 | 浙江三一装备有限公司 | Jib and dynamic compaction machinery |
-
2014
- 2014-12-04 CN CN201410733487.4A patent/CN104499476B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000144704A (en) * | 1998-11-13 | 2000-05-26 | Jdc Corp | Dynamic consolidation method and dynamic consolidation device |
| KR20050115722A (en) * | 2004-06-05 | 2005-12-08 | 삼일토건(주) | Tamper equipped with towing device |
| CN202559332U (en) * | 2012-01-13 | 2012-11-28 | 山河智能装备股份有限公司 | Multi-point rigid supporting mechanism of dynamic compaction machine |
| CN202969367U (en) * | 2012-10-30 | 2013-06-05 | 中国一冶集团有限公司 | Spring buffer device for crawler crane under dynamic compaction |
| CN203213094U (en) * | 2013-03-28 | 2013-09-25 | 三一重工股份有限公司 | Dynamic compaction machine convenient for enhancing compaction energy |
| CN204326053U (en) * | 2014-12-04 | 2015-05-13 | 浙江三一装备有限公司 | Jib and dynamic compaction machinery |
Non-Patent Citations (1)
| Title |
|---|
| 王欣等: "强夯机臂架防后倾研究", 《建筑机械化》, no. 4, 30 April 2012 (2012-04-30), pages 50 - 53 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114562111A (en) * | 2022-02-14 | 2022-05-31 | 三一汽车制造有限公司 | Method, device and equipment for determining position of boom and operation machine |
| CN114562111B (en) * | 2022-02-14 | 2023-09-08 | 三一汽车制造有限公司 | Arm support position determining method, device, equipment and working machine |
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| Publication number | Publication date |
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| CN104499476B (en) | 2016-06-08 |
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