CN104016247A - Hoisting device of weight frame and crane test equipment - Google Patents
Hoisting device of weight frame and crane test equipment Download PDFInfo
- Publication number
- CN104016247A CN104016247A CN201410251936.1A CN201410251936A CN104016247A CN 104016247 A CN104016247 A CN 104016247A CN 201410251936 A CN201410251936 A CN 201410251936A CN 104016247 A CN104016247 A CN 104016247A
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- China
- Prior art keywords
- frame
- suspension bracket
- counterweight frame
- rod member
- jack
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000000725 suspension Substances 0.000 claims description 94
- 210000000078 claw Anatomy 0.000 claims description 5
- 238000000034 method Methods 0.000 description 4
- 230000009194 climbing Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Jib Cranes (AREA)
Abstract
The invention discloses a lifting device of a weight frame, which comprises: the lifting lug assembly is rotatably connected to the weight frame (100); a capture assembly that locks the lug assembly to a lifting position proximate a longitudinal centerline of the weight holder; and the pull rod assembly pulls the lifting lug assembly to a hook detaching position away from the longitudinal center line of the weight frame. The invention also discloses crane test equipment which comprises the lifting device of the weight frame. The invention is used for reducing the labor intensity of operators and improving the efficiency and the safety of operation.
Description
Technical field
The present invention relates to engineering machinery field, particularly, relate to a kind of jack up unit and hoisting crane test facility of counterweight frame.
Background technology
Along with hoisting crane develops towards super-tonnage, hoisting crane is carrying out hanging of product while carrying test, and the weight that need hang the counterweight frame carrying is increasing.Correspondingly, the volume of counterweight frame is also increasing, highly also more and more higher.In the prior art, the hook mode conventionally adopting is manually to climb to counterweight frame top to link up with.But at least there is following problem in this hook mode: first, the hanger of counterweight frame is large and heavy with respect to operating personal, manually directly link up with require great effort very much time-consuming; When secondly, climbing operates under operating personal, there is very serious potential safety hazard.Therefore, hook mode of the prior art needs to improve.
Summary of the invention
The jack up unit and the hoisting crane test facility that the object of this invention is to provide a kind of counterweight frame, in order to alleviate the labour intensity of operating personal and to improve efficiency and the safety operating.
To achieve these goals, the invention provides a kind of jack up unit of counterweight frame, this jack up unit comprises: Shackle assembly, and this Shackle assembly is rotatably connected on counterweight frame; Lock-bit assembly, this lock-bit assembly is locked to the lifting position near the longitudinal centerline of counterweight frame by Shackle assembly; And rod assembly, this rod assembly is pulled to Shackle assembly away from the hook of the longitudinal centerline of counterweight frame and tears hook position open.
Preferably, tearing open the path of moving hook position to hook from lifting position of Shackle assembly, be provided with for stopping that Shackle assembly is crossed and link up with the stop part of tearing hook position open.
Preferably, Shackle assembly comprises the first suspension bracket and second suspension bracket of the both sides that are connected to counterweight frame, and the bottom-hinged of the first suspension bracket and the second suspension bracket is on the top of counterweight frame.
Preferably, lock-bit assembly comprises the elastic component being connected between the first suspension bracket and the second suspension bracket, and elastic component applies elasticity predetermincd tension with the direction of the longitudinal centerline towards near counterweight frame to the first suspension bracket and the second suspension bracket.
Preferably, the first suspension bracket and the second suspension bracket comprise respectively the first frame and the second frame arranging at intervals, and be connected to the crossbeam between the first frame and the top of the second frame, wherein, the bottom-hinged of the first frame and the second frame is to counterweight frame, and crossbeam forms the lifting position of matching with suspension hook.
Preferably, the first frame and the second frame comprise respectively the first hinged in turn rod member, the second rod member and the 3rd rod member, wherein, the tail end of the head end of the first rod member and the 3rd rod member is hinged to counterweight frame, and the hinge of the tail end of the 3rd rod member is than the longitudinal centerline of the more close counterweight frame of the hinge of the head end of the first rod member.
Preferably, crossbeam is connected between the 3rd rod member of the first frame and the 3rd rod member of the second frame.
Preferably, the hinge place of the first rod member and the second rod member is provided with the claw for being used in conjunction with rod assembly.
Preferably, rod assembly comprises that manually operated end has the slender rod piece of drag hook.
On the other hand, the present invention also provides a kind of hoisting crane test facility, and this hoisting crane test facility comprises the jack up unit of above-mentioned counterweight frame.
By technique scheme, the invention provides a kind of jack up unit of novel counterweight frame.The jack up unit by use with Shackle assembly, lock-bit assembly and rod assembly, operating personal no longer needs to climb counterweight frame and links up with operation.By this, can reduce on the one hand the labour intensity of operating personal, can avoid operating personal ascend operation on the other hand, eliminate the potential safety hazard that climbing operation produces, and increase work efficiency.
Other features and advantages of the present invention partly in detail are described the specific embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with the specific embodiment one below.In the accompanying drawings:
Fig. 1 is according to the structural representation of hoisting crane test facility of the present invention;
Fig. 2 is according to the structural representation of the jack up unit of counterweight frame of the present invention, and the situation of Shackle assembly in initial condition is shown;
Fig. 3 is according to the structural representation of the jack up unit of counterweight frame of the present invention, Shackle assembly is shown and in hook, tears the state of hook position open;
Fig. 4 is according to the structural representation of the jack up unit of counterweight frame of the present invention, the situation when suspension hook being shown stretching into jack up unit;
Fig. 5 is according to the structural representation of the jack up unit of counterweight frame of the present invention, and the state of Shackle assembly in lifting position is shown.
Description of reference numerals
100 counterweight frame 1 stop parts
21 first suspension bracket 22 second suspension bracket 201 first frames
21 first suspension bracket 22 second suspension brackets
2001 first rod member 2,002 second rod member 2003 the 3rd rod members
3 elastic component 4 suspension hook 5 claws
6 slender rod pieces
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, the specific embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
In the present invention, in the situation that not doing contrary explanation, the noun of locality of use typically refers to reference to upper and lower, left and right shown in the drawings as " upper and lower, left and right "; " inside and outside " refers to inside and outside with respect to the profile of each parts itself.
Referring to figs. 1 to Fig. 5, the invention provides a kind of jack up unit of counterweight frame.According to embodiments of the invention, the jack up unit of counterweight frame comprises Shackle assembly.Shackle assembly is rotatably connected on counterweight frame 100, comprises near the lifting position of the longitudinal centerline of counterweight frame 100 with away from the hook of the longitudinal centerline of counterweight frame 100 and tears hook position open.
More specifically, referring to figs. 2 to Fig. 5, according to embodiments of the invention, Shackle assembly comprises the first suspension bracket 21 and the second suspension bracket 22.Wherein, the first suspension bracket 21 and the second suspension bracket 22 are connected to the both sides of counterweight frame 100, and preferably the first suspension bracket 21 and the second suspension bracket 22 be take the longitudinal centerline of counterweight frame 100 and arranged symmetrically as axis of symmetry.Further, according to embodiments of the invention, the first suspension bracket 21 and the second suspension bracket 22 comprise top and bottom.Wherein, the bottom-hinged of the first suspension bracket 21 and the second suspension bracket 22 is on the top of counterweight frame 100, to realize the first suspension bracket 21 and the second suspension bracket 22 is rotatable with respect to counterweight frame 100.At the first suspension bracket 21 and the second suspension bracket 22, in the situation that hinge point is rotated, the top of the first suspension bracket 21 and the second suspension bracket 22 can be torn open between hook position and move at lifting position and hook.By the first suspension bracket 21 and the second suspension bracket 22, counterweight frame 100 can be lifted by crane as hanging basket, thereby make the lifting process of counterweight frame 100 more steady.
Continuation is referring to figs. 2 to Fig. 5, and because the structure of the first suspension bracket 21 and the second suspension bracket 22 is basic identical, first suspension bracket 21 of therefore take below describes as example, and the structure of the second suspension bracket 22 can be designed as identical structure.According to embodiments of the invention, the first suspension bracket 21 comprises the first frame 201 and the second frame arranging at intervals, and preferably, the first frame 201 and the second frame arrange relatively symmetrically.According to embodiments of the invention, the bottom-hinged of the first frame 201 and the second frame is to counterweight frame 100, and preferably the first frame 201 and the second frame can be synchronously around hinge point with respect to 100 rotations of counterweight frame.At the first frame 201 and the second frame, in the situation that hinge point is rotated, the top of the first frame 201 and the second frame can be torn open between hook position and move at lifting position and hook.According to embodiments of the invention, between the first frame 201 and the second frame, be connected with crossbeam.This crossbeam can be strengthened the structural strength of the first frame 201 and the second frame on the one hand, can make on the other hand first side frame 201 and the second frame in rotary course, keep good synchronism, then can also form the lifting position of matching with suspension hook 4 on the one hand.According to a preferred embodiment of the invention, crossbeam is connected to the position at the top of the first frame 201 and the second frame.
Further, according to embodiments of the invention, the first frame 201 and the second frame and counterweight frame 100 form four-bar linkage structure.Specifically, as shown in Figure 4 and Figure 5, the first frame 201 and the second frame comprise respectively hinged in turn the first rod member 2001, the second rod member 2002 and the 3rd rod member 2003.Wherein, the tail end of the head end of the first rod member 2001 and the 3rd rod member 2003 is all hinged to counterweight frame 100, and the hinge of the tail end of the 3rd rod member 2003 is than the longitudinal centerline of the more close counterweight frame 100 of the hinge of the head end of the first rod member 2001.Thus, the first rod member 2001, the second rod member 2002, the 3rd rod member 2003 and counterweight frame 100 form four-bar linkage structures, and the structure that forms of the first rod member 2001, the second rod member 2002 and the 3rd rod member 2003 can carry out integral-rotation around the head end of the first rod member 2001 and the tail end of the hinge of counterweight frame 100 and the 3rd rod member 2003 and the hinge of counterweight frame 100.The structure being comprised of the first rod member 2001, the second rod member 2002 and the 3rd rod member 2003 at the first frame 201 and the second frame carries out in the process of synchronous rotary, and being connected to crossbeam between the first frame 201 and the second frame can tear open between hook position and move in the lifting position of the longitudinal centerline near counterweight frame 100 with away from the hook of the longitudinal centerline of counterweight frame 100.Further, according to embodiments of the invention, crossbeam is connected between the 3rd rod member 2003 of the first frame 201 and the 3rd rod member of the second frame, and is preferably arranged on the position at the top of the 3rd rod member 2003 of the first frame 201 and the 3rd rod member of the second frame.By this, can make the mobile range of crossbeam maximize.
According to above-mentioned, the first suspension bracket 21 in Fig. 2 and the second suspension bracket 22 are in initial condition.When needs lift by crane counterweight frame 100, can make as shown in Figure 3 the first suspension bracket 21 and the rotation of the second suspension bracket 22, make the crossbeam of the first suspension bracket 21 and the second suspension bracket 22 crossbeams move to hook towards the direction of the longitudinal centerline away from counterweight frame 100 and tear hook position open.So, between the first suspension bracket 21 that can be directly over counterweight frame 100 and the second suspension bracket 22, form and open space.Then can as shown in Figure 4 suspension hook 4 be dropped to described opening in space.Make as shown in Figure 5 afterwards the first suspension bracket 21 and the second suspension bracket 22 reset and rotate, make the crossbeam of the first suspension bracket 21 and the second suspension bracket 22 crossbeams move to towards the direction of the longitudinal centerline near counterweight frame 100 position that hoists.Now, can upwards mention suspension hook 4, make suspension hook 4 hook crossbeam and second suspension bracket 22 crossbeams of the first suspension bracket 21, thereby can implement lifting operation.After lifting has operated, can put down suspension hook 4 downwards, the crossbeam of suspension hook 4 and the first suspension bracket 21 and the second suspension bracket 22 crossbeams are thrown off.Then implement the program contrary with said procedure, can make the first suspension bracket 21 and the second suspension bracket 22 be reset to initial condition.
With reference to figure 3 and Fig. 4, according to embodiments of the invention, the jack up unit of counterweight frame also comprises lock-bit assembly and rod assembly.Wherein, lock-bit assembly is locked to the lifting position near the longitudinal centerline of counterweight frame 100 by Shackle assembly, and rod assembly is pulled to Shackle assembly away from the hook of the longitudinal centerline of counterweight frame 100 and tears hook position open.
In more detail, according to embodiments of the invention, rod assembly comprises that end has the slender rod piece 6 of drag hook.Preferably, rod assembly is manual operational unit.Certainly, rod assembly can be also automatic operation parts.But because M/C slender rod piece 6 is very convenient and save manufacturing cost, so preferred this embodiment of the present invention.As shown in Figures 3 and 4, the hinge place of the first rod member 2001 and the second rod member 2002 is provided with the claw 5 for being used in conjunction with slender rod piece 6.In the time of the first suspension bracket 21 and the second suspension bracket 22 need to being pulled to hook and tearing hook position open, only the drag hook of slender rod piece 6 and claw 5 need be overlapped, can implement pull operation.When needs reset the first suspension bracket 21 and the second suspension bracket 22, only need unclamp slender rod piece 6.
In addition, according to embodiments of the invention, lock-bit assembly is connected to the elastic component 3 between the first suspension bracket 21 and the second suspension bracket 22.Particularly, elastic component 3 is connected between the 3rd rod member 2003 of the first frame 201 and the 3rd rod member of the second frame, and is preferably arranged on the position at the top of the 3rd rod member 2003 of the first frame 201 and the 3rd rod member of the second frame.By this, can make the elasticity predetermincd tension of elastic component 3 there is larger moment.Elastic component 3 can apply elasticity predetermincd tension to the first suspension bracket 21 and the second suspension bracket 22 towards the direction of the longitudinal centerline near counterweight frame 100, thereby not the application of force in the situation that, can make the first suspension bracket 21 and the second suspension bracket 22 remain on initial position (also lifting by crane position) at rod assembly.In addition, by elastic component 3, can also strengthen the structural strength of the first suspension bracket 21 and the second suspension bracket 22.
Referring to figs. 2 to Fig. 5, according to embodiments of the invention, the tearing the path of moving hook position open to hook and be provided with stop part 1 from lifting position of the first suspension bracket 21 and the second suspension bracket 22, in order to stop that the first suspension bracket 21 and the second suspension bracket 22 cross hook and tear hook position open.By this, can make the moving range of the first suspension bracket 21 and the second suspension bracket 22 remain on to be enough to make suspension hook 4 to open space described in can entering, thereby work efficiency can be provided.
On the other hand, the present invention also provides a kind of hoisting crane test facility, and this hoisting crane test facility comprises the jack up unit of above-mentioned counterweight frame.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, between various embodiment of the present invention, also can carry out combination in any, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a jack up unit for counterweight frame, is characterized in that, described jack up unit comprises: Shackle assembly, and this Shackle assembly is rotatably connected on counterweight frame (100); Lock-bit assembly, this lock-bit assembly is locked to the lifting position near the longitudinal centerline of described counterweight frame (100) by described Shackle assembly; And rod assembly, this rod assembly is pulled to described Shackle assembly away from the hook of the longitudinal centerline of described counterweight frame (100) and tears hook position open.
2. the jack up unit of counterweight frame according to claim 1, it is characterized in that, tearing open the path of moving hook position to described hook from described lifting position of described Shackle assembly, be provided with for stopping that described Shackle assembly crosses described hook and tear the stop part of hook position (1) open.
3. the jack up unit of counterweight frame according to claim 1 and 2, it is characterized in that, described Shackle assembly comprises the first suspension bracket (21) and second suspension bracket (22) of the both sides that are connected to described counterweight frame (100), and the bottom-hinged of described the first suspension bracket (21) and the second suspension bracket (22) is on the top of described counterweight frame (100).
4. the jack up unit of counterweight frame according to claim 3, it is characterized in that, described lock-bit assembly comprises the elastic component (3) being connected between described the first suspension bracket (21) and the second suspension bracket (22), and described elastic component (3) applies elasticity predetermincd tension with the direction of the longitudinal centerline towards near described counterweight frame (100) to described the first suspension bracket (21) and the second suspension bracket (22).
5. the jack up unit of counterweight frame according to claim 4, it is characterized in that, described the first suspension bracket (21) and the second suspension bracket (22) comprise respectively the first frame (201) and the second frame arranging at intervals, and be connected to the crossbeam between described the first frame (201) and the top of the second frame, wherein, the bottom-hinged of described the first frame (201) and the second frame is to described counterweight frame (100), and described crossbeam forms the lifting position of matching with suspension hook (4).
6. the jack up unit of counterweight frame according to claim 5, it is characterized in that, described the first frame (201) and the second frame comprise respectively in turn hinged the first rod member (2001), the second rod member (2002) and the 3rd rod member (2003), wherein, the tail end of the head end of described the first rod member (2001) and the 3rd rod member (2003) is hinged to described counterweight frame (100), and the hinge of the tail end of described the 3rd rod member (2003) is than the longitudinal centerline of the more close described counterweight frame of the hinge of the head end of described the first rod member (2001) (100).
7. the jack up unit of counterweight frame according to claim 6, is characterized in that, described crossbeam is connected between described the 3rd rod member (2003) of described the first frame (201) and described the 3rd rod member of described the second frame.
8. the jack up unit of counterweight frame according to claim 6, is characterized in that, the hinge place of described the first rod member (2001) and the second rod member (2002) is provided with the claw (5) for being used in conjunction with described rod assembly.
9. the jack up unit of counterweight frame according to claim 8, is characterized in that, described rod assembly comprises that manually operated end has the slender rod piece of drag hook (6).
10. a hoisting crane test facility, is characterized in that, described hoisting crane test facility comprises the jack up unit of the counterweight frame described in any one in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410251936.1A CN104016247B (en) | 2014-06-09 | 2014-06-09 | Hoisting device of weight frame and crane test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410251936.1A CN104016247B (en) | 2014-06-09 | 2014-06-09 | Hoisting device of weight frame and crane test equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104016247A true CN104016247A (en) | 2014-09-03 |
| CN104016247B CN104016247B (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410251936.1A Active CN104016247B (en) | 2014-06-09 | 2014-06-09 | Hoisting device of weight frame and crane test equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN104016247B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105439003A (en) * | 2015-12-31 | 2016-03-30 | 浙江三一装备有限公司 | Crawler crane and hoisting testing device and hoisting method thereof |
| CN106081944A (en) * | 2016-05-06 | 2016-11-09 | 江苏宏强船舶重工有限公司 | A kind of abridged edition type hoisting test method of heavy lift carrier |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU645926A1 (en) * | 1976-02-06 | 1979-02-05 | Всесоюзный Проектно-Конструкторский Технологический Институт Атомного Машиностроения И Котлостроения | Crosspiece |
| CN101857167A (en) * | 2010-05-18 | 2010-10-13 | 青岛港（集团）有限公司 | Special hanger for loading and unloading steel rails |
| CN101891112A (en) * | 2010-07-08 | 2010-11-24 | 中国恩菲工程技术有限公司 | Lifting tool |
| CN202744237U (en) * | 2012-09-18 | 2013-02-20 | 中联重科股份有限公司 | Introducing hook and tower crane comprising same |
| CN203287189U (en) * | 2013-06-09 | 2013-11-13 | 中联重科股份有限公司 | Lifting hook and weight frame structure and winch test platform |
-
2014
- 2014-06-09 CN CN201410251936.1A patent/CN104016247B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU645926A1 (en) * | 1976-02-06 | 1979-02-05 | Всесоюзный Проектно-Конструкторский Технологический Институт Атомного Машиностроения И Котлостроения | Crosspiece |
| CN101857167A (en) * | 2010-05-18 | 2010-10-13 | 青岛港（集团）有限公司 | Special hanger for loading and unloading steel rails |
| CN101891112A (en) * | 2010-07-08 | 2010-11-24 | 中国恩菲工程技术有限公司 | Lifting tool |
| CN202744237U (en) * | 2012-09-18 | 2013-02-20 | 中联重科股份有限公司 | Introducing hook and tower crane comprising same |
| CN203287189U (en) * | 2013-06-09 | 2013-11-13 | 中联重科股份有限公司 | Lifting hook and weight frame structure and winch test platform |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105439003A (en) * | 2015-12-31 | 2016-03-30 | 浙江三一装备有限公司 | Crawler crane and hoisting testing device and hoisting method thereof |
| CN106081944A (en) * | 2016-05-06 | 2016-11-09 | 江苏宏强船舶重工有限公司 | A kind of abridged edition type hoisting test method of heavy lift carrier |
| CN106081944B (en) * | 2016-05-06 | 2019-02-12 | 江苏宏强船舶重工有限公司 | A kind of abridged edition type hoisting test method of heavy lift carrier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104016247B (en) | 2016-06-01 |
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Address after: 410006 No. 361 South silver basin, Changsha, Hunan, Yuelu District Applicant after: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. Address before: 410007 ZOOMLION grand pond Industrial Park, Yuanda Road, Changsha economic and Technological Development Zone, Changsha, Hunan 2, China Applicant before: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. |
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