CN203006802U - Telescopic boom frame and crane - Google Patents
Telescopic boom frame and crane Download PDFInfo
- Publication number
- CN203006802U CN203006802U CN 201220711124 CN201220711124U CN203006802U CN 203006802 U CN203006802 U CN 203006802U CN 201220711124 CN201220711124 CN 201220711124 CN 201220711124 U CN201220711124 U CN 201220711124U CN 203006802 U CN203006802 U CN 203006802U
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- CN
- China
- Prior art keywords
- hole
- arm pin
- flange
- positioning datum
- boom
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a telescopic boom frame and a crane. The telescopic boom frame comprises a boom frame main body and a boom pin hole flange, wherein a boom pin hole is formed on the boom frame main body; the arm pin hole flange is arranged in the boom pin hole; a first positioning datum part is arranged on the hole wall of the boom pin hole; a second positioning datum part is arranged on the peripheral wall of the barrel part of the boom pin hole flange in a radial direction; the second positioning datum part is matched with the first positioning datum part, so that the boom pin hole flange is positioned in the boom pin hole without rotating in the boom pin hole. The telescopic boom frame can be used for enabling the flange hole and the boom pin to be precisely matched after the boom pin hole flange is welded on the boom frame main body, so that the friction force generated by the boom pin and the flange hole during the stretching action process is reduced, and the service lives of the boom pin hole flange and the boom pin are prolonged.
Description
Technical field
The utility model relates to the hoisting crane field, relates in particular to a kind of telescopic jib and has the hoisting crane of this telescopic jib.
Background technology
The single-cylinder bolt telescoping mechanism is the main flow stretch mode that the hoister in large tonnage jib adopts, it mainly is comprised of telescoping cylinder, pulling-out mechanism, cylinder pin, arm pin, cylindrical shell arm pin-and-hole etc., realizes the Plug Action of cylinder pin, arm pin and the expanding-contracting action of jib by electrohydraulic control system.When each saves the operation of arm reciprocation type, arm pin and cylindrical shell arm pin flange are main load parts.At present, the SAC2200 crane arm support is comprised of six joint joint arms, wherein on the cylindrical shell of one to five joint arm, 4 arm pin-and-holes is arranged respectively, is provided with flange on the arm pin-and-hole.
Yet, the radial section of the cylindrical shell of existing flange is circular, with arm pin-and-hole on jib that flange matches also for circular, can carry out 360 degree rotations when therefore flange is installed in the arm pin-and-hole in the arm pin-and-hole, like this flange welding on jib the time, can't guaranteed that flange hole (waist-shaped hole) accurately coordinates with arm pin (radial section also is kidney-shaped).Easily produce stronger friction with flange hole when the arm pin is done expanding-contracting action, make flange and the minimizing in service life of arm pin.In addition, with flange welding before the arm pin-and-hole, the workman needs flange in pivot arm pin-and-hole constantly so that flange hole is adjusted to the position that can accurately coordinate with the arm pin.Therefore, reduced operating efficiency.
The utility model content
For defects and the deficiency that overcomes prior art, the purpose of this utility model is to provide a kind of telescopic jib that improves the quality of fit of flange and arm pin, the service life that extends flange and arm pin, raising operating efficiency.
This telescopic jib comprises the jib body that offers the arm pin-and-hole and is installed on arm pin-and-hole flange in described arm pin-and-hole, be provided with the first positioning datum section on the hole wall of described arm pin-and-hole, radially be provided with the second positioning datum section on the periphery wall of the cylinder section of described arm pin-and-hole flange, described the second positioning datum section is used for coordinating with described the first positioning datum section, makes described arm pin-and-hole flange locate in described arm pin-and-hole and limit described arm pin-and-hole flange and rotate in described arm pin-and-hole.
Further, described the first positioning datum section and described the second positioning datum section are all the plane.
Further, described the first positioning datum section is Extendible flake, described the second groove of positioning datum section for matching with described Extendible flake, and described Extendible flake is convexly set on the inwall of described arm pin-and-hole, and described groove is arranged with on the periphery wall of described cylinder section.
Further, described the first positioning datum section is groove, the Extendible flake of described the second positioning datum section for matching with described groove, described groove is opened on described jib body and is connected with described arm pin-and-hole, and described Extendible flake is convexly set on the periphery wall of described cylinder section.
When arm pin-and-hole flange provided by the utility model is installed in the arm pin-and-hole, due to coordinating of the first positioning datum section and the second positioning datum section, make arm pin-and-hole flange accurately to locate in the arm pin-and-hole, after having guaranteed that arm pin-and-hole flange welding is on the jib body, flange hole accurately coordinates with the arm pin, when reducing the arm pin and doing expanding-contracting action and the friction force that produces of flange hole, the service life of extension arm pin-and-hole flange and arm pin.In addition, with arm pin-and-hole flange welding before the arm pin-and-hole, the workman need not the arm pin-and-hole flange in continuous pivot arm pin-and-hole so that flange hole is adjusted to the position that can accurately coordinate with the arm pin.Therefore, improved operating efficiency.
The utility model also proposes a kind of hoisting crane that is provided with above-mentioned telescopic jib.Because above-mentioned telescopic jib has above-mentioned technique effect, therefore, the hoisting crane that is provided with this telescopic jib also has corresponding technique effect.
Description of drawings
The accompanying drawing that consists of a part of the present utility model is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Figure 1 shows that the structural representation of the jib body of the utility model embodiment telescopic jib;
Figure 2 shows that the structural representation of the arm pin-and-hole flange of the utility model embodiment telescopic jib.
The specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 1 and Fig. 2, the utility model embodiment provides a kind of telescopic jib, and it is arranged in the construction machinery and equipments such as hoisting crane.
This telescopic jib comprises jib body 1 and is arranged at arm pin-and-hole flange 2 on this jib body 1.
Offer a plurality of arm pin-and-holes 11 on this jib body 1.Be provided with the first positioning datum section 110 on the hole wall of this arm pin-and-hole 11.This first positioning datum section 110 can accurately locate this arm pin-and-hole flange 2 that is arranged in this arm pin-and-hole 11, make the flange hole 20(waist-shaped hole of this arm pin-and-hole flange 2) and for the arm pin of fixing two telescopic jibs (radial section also is kidney-shaped) precision-fit, reduce the friction between arm pin and arm pin-and-hole flange 2.
The cylinder section 22 that this arm pin-and-hole flange 2 comprises head 21 and is connected with this head 21.Radially be provided with the second positioning datum section 220 on the periphery wall of this one 22.This second positioning datum section 220 is used for coordinating with this first positioning datum section 110, makes this arm pin-and-hole flange 2 locate in this arm pin-and-hole 11 and limit this arm pin-and-hole flange 2 and rotate in this arm pin-and-hole 11.This kind state can make flange hole 20 accurately coordinate with the arm pin.
This first positioning datum section 110 can be the plane, and it is formed on the perisporium of this one 22 and along the axial setting of this one 22.Accordingly, this second positioning datum section 220 is also the plane, on the hole wall of its this arm pin-and-hole 11.Like this, when being fit into this arm pin-and-hole flange 2 in this arm pin-and-hole 11, coordinate with this first positioning datum section 110 due to this second positioning datum section 220 this arm pin-and-hole flange 2 can not be rotated in this arm pin-and-hole 11.The advantage that this first positioning datum section 110 and this second positioning datum section 220 are all the plane is that it is simple in structure, is easy to processing on this arm pin-and-hole flange 2 and this arm pin-and-hole 11, and comparatively easy in this arm pin-and-hole flange 2 is fit into this arm pin-and-hole 11 time.In order to improve the quality of fit of this arm pin-and-hole flange 2 and this arm pin-and-hole 11, this first positioning datum section 110 adopts fine plasma blanking moulding usually, and this second positioning datum section 220 adopts the numerical control mill technological formings usually.
Except above-mentioned shape, this first positioning datum section 110 can be also other shapes with the shape of this second positioning datum section 220, and for example, this first positioning datum section 110 is Extendible flake, and this second positioning datum section 220 is groove.This Extendible flake is convexly set on the inwall of this arm pin-and-hole 11, and this groove is arranged with on the periphery wall of this one 22 and along the axial setting of this one 22.By coordinating of Extendible flake and groove, can not be rotated with respect to this arm pin-and-hole 11 after making this arm pin-and-hole flange 2 be arranged in this arm pin-and-hole 11.
In addition, this the first positioning datum section 110 is groove, this the second positioning datum section 220 is Extendible flake, and namely this groove is opened on this jib body 1 and with this arm pin-and-hole 11 and is connected, and this Extendible flake is convexly set on the periphery wall of this one 22 and along the axial setting of this one 22.
Need to prove, this first positioning datum section 110, this second positioning datum section 220 be formed on position on this arm pin-and-hole 11, this cylindrical shell 22 be installed in this arm pin-and-hole 11 with this arm pin-and-hole flange 2 after, the arm pin can insert in flange hole 20 as prerequisite.That is to say, after this arm pin-and-hole flange 2 was fixed in this arm pin-and-hole 11, the arm pin can insert in flange hole 20 and with this flange hole 20 and accurately coordinate.
Therefore, when arm pin-and-hole flange of the present utility model is installed in the arm pin-and-hole, due to coordinating of the first positioning datum section and the second positioning datum section, make arm pin-and-hole flange accurately to locate in the arm pin-and-hole, after having guaranteed that arm pin-and-hole flange welding is on the jib body, flange hole accurately coordinates with the arm pin, when reducing the arm pin and doing expanding-contracting action and the friction force that produces of flange hole, and the service life of extension arm pin-and-hole flange and arm pin.In addition, with arm pin-and-hole flange welding before the arm pin-and-hole, the workman need not the arm pin-and-hole flange in continuous pivot arm pin-and-hole so that flange hole is adjusted to the position that can accurately coordinate with the arm pin.Therefore, improved operating efficiency.
The quantity that is appreciated that this first positioning datum section 110 is not limited to one, and they can be for a plurality of.Accordingly, the quantity of this second positioning datum section 220 is corresponding with the quantity of this first positioning datum section 110.
The utility model also provides a kind of hoisting crane with above-mentioned telescopic jib, because above-mentioned telescopic jib has above-mentioned technique effect, therefore, the hoisting crane that is provided with this telescopic jib also should possess corresponding technique effect, its specific implementation process is similar to the above embodiments, therefore do not give unnecessary details.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. telescopic jib, comprise the jib body (1) that offers arm pin-and-hole (11) and be installed on arm pin-and-hole flange (2) in described arm pin-and-hole (11), it is characterized in that, be provided with the first positioning datum section (110) on the hole wall of described arm pin-and-hole (11), radially be provided with the second positioning datum section (220) on the periphery wall of the cylinder section (22) of described arm pin-and-hole flange (2), described the second positioning datum section (220) is used for coordinating with described the first positioning datum section (110), make described arm pin-and-hole flange (2) locate in described arm pin-and-hole (11) and limit described arm pin-and-hole flange (2) and rotate in described arm pin-and-hole (11).
2. telescopic jib according to claim 1, is characterized in that, described the first positioning datum section (110) and described the second positioning datum section (220) are all planar structure.
3. telescopic jib according to claim 1, it is characterized in that, described the first positioning datum section (110) is Extendible flake, the groove of described the second positioning datum section (220) for matching with described Extendible flake, described Extendible flake is convexly set on the inwall of described arm pin-and-hole (11), and described groove is arranged with on the periphery wall of described cylinder section (22).
4. telescopic jib according to claim 1, it is characterized in that, described the first positioning datum section (110) is groove, the Extendible flake of described the second positioning datum section (220) for matching with described groove, described groove is opened in described jib body (1) upward and is connected with described arm pin-and-hole (11), and described Extendible flake is convexly set on the periphery wall of described cylinder section (22).
5. a hoisting crane, is characterized in that, described hoisting crane is provided with telescopic jib as described in any one in claim 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220711124 CN203006802U (en) | 2012-12-20 | 2012-12-20 | Telescopic boom frame and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220711124 CN203006802U (en) | 2012-12-20 | 2012-12-20 | Telescopic boom frame and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203006802U true CN203006802U (en) | 2013-06-19 |
Family
ID=48598417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220711124 Expired - Fee Related CN203006802U (en) | 2012-12-20 | 2012-12-20 | Telescopic boom frame and crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203006802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113526378A (en) * | 2021-07-14 | 2021-10-22 | 三一汽车起重机械有限公司 | Automatic calibration method for hole position parameters of crane arm pin, calculation equipment and crane |
-
2012
- 2012-12-20 CN CN 201220711124 patent/CN203006802U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113526378A (en) * | 2021-07-14 | 2021-10-22 | 三一汽车起重机械有限公司 | Automatic calibration method for hole position parameters of crane arm pin, calculation equipment and crane |
| CN113526378B (en) * | 2021-07-14 | 2023-08-29 | 三一汽车起重机械有限公司 | Automatic calibration method for crane arm pin hole site parameters, computing equipment and crane |
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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: 20130619 Termination date: 20201220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |