CN202882437U - Cantilever crane and concrete pump truck - Google Patents
Cantilever crane and concrete pump truck Download PDFInfo
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- CN202882437U CN202882437U CN 201220534920 CN201220534920U CN202882437U CN 202882437 U CN202882437 U CN 202882437U CN 201220534920 CN201220534920 CN 201220534920 CN 201220534920 U CN201220534920 U CN 201220534920U CN 202882437 U CN202882437 U CN 202882437U
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- jib
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Abstract
The utility model discloses a cantilever crane and a concrete pump truck. A cantilever crane comprises a first box body and a second box body which are connected with each other, wherein the first box body and the second box body respectively comprises four surfaces including a top surface, a base surface, a left lateral surface and a right lateral surface, at lest one surfaces of the first box body and the second box body partially coincide, and the coincide parts are connected through mechanical fastening pieces. According to the cantilever crane and the concrete pump truck, the structure of the cantilever crane is simplified, the weight of the cantilever crane is lowered, and safety risks like welding seam breakage caused by welding in the process of connection of the cantilever crane are reduced.
Description
Technical field
The utility model relates to the concrete mixer technical field in the engineering machinery, particularly a kind of jib of concrete mixer and concrete mixer.
Background technology
At present, concrete pump truck arm mostly is by solder technology and connects each sheet metal component, and the sheet metal component quantity that jib comprises is a lot.
For example, Chinese patent application number is 201110307093, and name is called in the technical scheme of " jib of concrete mixer and concrete mixer ", discloses a kind of like this jib, by solder technology each sheet metal component is coupled together the formation jib.
But there is following defective in technique scheme:
The first, the sheet metal component of composition jib is too much, and structure is too complicated, and controllability is bad.
The second, the weight of jib lays particular stress on.
Three, the weld seam of jib is too much, and welding will reduce the stress that welding place can be born, and causes stress to concentrate.The commissure cracking in use may occur, cause certain potential safety hazard.
Four, welding brings harmful effect to workman's working environment.
The utility model content
In view of this, the utility model is intended to propose a kind of jib and concrete mixer, to simplify jib structure, reduce jib weight, to reduce because the potential safety hazards such as weld cracking that welding brings.
First aspect, the utility model provides a kind of jib, comprise the first casing and the second casing that are connected, described the first casing and described the second casing include end face, bottom surface, left surface and four faces of right flank, described the first casing overlaps with at least one face portion of described the second casing, and intersection connects by machanical fastener.
Further, in the described jib, described the second casing can insert in described the first casing, and four faces and four faces of described the second casing of described the first casing all partially overlap, and intersection all connects by machanical fastener.
Further, in the described jib, the inboard of described the first tank floor also is provided with block reinforcement; After described the second casing was inserted into described the first casing, the end of described the second casing compressed with described block reinforcement and is connected.
Further, in the described jib, a face of described the first casing overlaps with a face portion of described the second casing, and intersection connects by machanical fastener; Other three faces of described the first casing correspondingly dock with other three faces of the second casing, and are fixedly connected by welding.
Further, in the described jib, the end face of described the first casing overlaps with the summit portion of described the second casing, and intersection connects by machanical fastener; Other three faces of described the first casing correspondingly dock with other three faces of described the second casing, and are fixedly connected by welding.
Further, in the described jib, the bottom surface of formed the first weld seam of the interface between the left surface of the left surface of described the first casing and described the second casing and described the first casing acutangulates; The bottom surface of formed the second weld seam of the interface between the right flank of the right flank of described the first casing and described the second casing and described the first casing acutangulates.
Further, in the described jib, the angular range of described acute angle is 30 degree～60 degree.
Further, in the described jib, described the first casing and described the second casing are forging; And/or the material of described the first casing is alloy steel or aluminium alloys, and the material of described the second casing is aluminium alloys.
Further, in the described jib, described machanical fastener is bolt or rivet.
The utility model is fixed the coincidence face of two casings by machanical fastener, realized the simplification of jib structure, has stronger deformation resistance, and then has reduced because the potential safety hazards such as weld cracking that welding brings; And, owing to can reduce the quantity of sheet metal structural by this structure, so reduced jib weight.Simultaneously, as the optimization of this technical scheme, can also be provided with block reinforcement in the inboard of a tank floor; After a casing is inserted into this casing, compresses with block reinforcement and to be connected.In this way, can reduce the shearing that machanical fastener bears, further guarantee the safety of jib.
The utility model also provides a kind of concrete mixer, is provided with above-mentioned any jib.
Because concrete mixer comprises above-mentioned jib, therefore, naturally also has the technique effect of above-mentioned jib, the utility model no longer illustrates at this.
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:
Fig. 1 is the perspective view of the utility model jib the first embodiment;
Fig. 2 is the front view of the utility model jib the second embodiment;
Fig. 3 is the top view of the utility model jib the second embodiment;
Fig. 4 is among the embodiment shown in Figure 2, along A-A to sectional view;
Fig. 5 is the perspective view of the utility model jib the 3rd embodiment.
Description of reference numerals
100 first casings
200 second casings
500 block reinforcements
600 machanical fasteners
700 first weld seams
800 bottom surface weld seams
The specific embodiment
Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment in the utility model can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
The first embodiment
With reference to Fig. 1.
The present embodiment jib is to be made of major part part (being also referred to as " the first casing 100 "), middle housing (also claiming " the second casing 200 ") and " little head part " (not shown)." little head part " also is the body structure similar to " major part part ".That is to say that the present embodiment jib comprises three parts substantially.Middle housing is connected between major part part and the little head part.And, the connected mode of major part part and middle housing is identical with the connected mode of little head part and middle housing.In view of this, present embodiment and Fig. 1 describe the connected mode of major part part and middle housing in detail.
Specifically, an end the second casing 200(middle housing) inserts the first casing 100(major part part) in; And the overlapping position of the end face of the first casing 100, bottom surface and two sides and the second casing 200 connects by machanical fastener 600.Each face of above-mentioned casing also can be referred to as plate.
In addition, the first casing 100 and the second casing 200 are preferred forging.Major part part (the first casing 100 that illustrates) and the material of microcephaly's part (not shown) can be alloy steel or aluminium alloys; Consider the loss of weight of jib, middle housing (the second casing 200 that illustrates) is preferably aluminum alloy materials.Generally speaking, machanical fastener 600 can be bolt or rivet.
Connected mode for middle housing and little head part, although do not have shown in Figure 1, but its connected mode is identical with the connected mode of major part part with middle housing: namely, middle housing inserts little head part, and the overlapping position of the end face of little head part, bottom surface, two sides and middle housing adopts mechanical fasteners.And the material of little head part can be alloy steel or aluminium alloys.
Can find out that this simple connected mode has been avoided the jib welding, protect mother metal not affected by welding; The working environment of also having avoided welding to the workman brings harmful effect; And simple in structure, cost is low, and solid and reliable.The connection of three parts of present embodiment jib is plug-in types, compares the mode of docking, and it has stronger deformation resistance, Anti-moving.
The second embodiment
With reference to Fig. 2 to Fig. 4.
Similar to a upper embodiment, the present embodiment jib is to be made of major part part (being also referred to as " the first casing 100 "), middle housing (also claiming " the second casing 200 ") and " little head part " (not shown)." little head part " also is the body structure similar to " major part part ".That is to say that the present embodiment jib comprises three parts substantially.Middle housing is connected between major part part and the little head part.And, the connected mode of major part part and middle housing is identical with the connected mode of little head part and middle housing.In view of this, Fig. 2 to Fig. 4 describes the connected mode of major part part and middle housing in detail.
Specifically, an end the second casing 200(middle housing) inserts the first casing 100(major part part) in; And the overlapping position of the end face of the first casing 100, bottom surface and two sides and the second casing 200 connects by machanical fastener 600.And the inboard of the first casing 100 bottoms also is provided with block reinforcement 500; After the second casing 200 is inserted into the first casing 100, compresses with block reinforcement 500 and to be connected.
Can find out that present embodiment is on the basis of the first embodiment, major part part (being also referred to as " the first casing 100 ") bottom inside arranges the block reinforcement 500 of offsetting jib length direction active force, as shown in Figure 4.Block reinforcement 500 can reduce the shearing that machanical fastener 600 bears, and further guarantees the safety of jib.
In addition, identical with the first embodiment, the first casing 100 and the second casing 200 are preferred forging, have avoided in the jib welding with simple connected mode, and it is simple to have protected mother metal not affected by welding, and cost is low, and solid and reliable.Major part part (the first casing 100 that illustrates) and the material of microcephaly's part (not shown) can be alloy steel or aluminium alloys; Consider the loss of weight of jib, middle housing (the second casing 200 that illustrates) is preferably aluminum alloy materials.Generally speaking, machanical fastener 600 can be bolt or rivet.
Connected mode for middle housing and little head part, although not shown in Fig. 2 to Fig. 4, but its connected mode is identical with the connected mode of major part part with middle housing: namely, middle housing inserts little head part, and the overlapping position of the end face of little head part, bottom surface, two sides and middle housing adopts mechanical fasteners.And the material of little head part can be alloy steel or aluminium alloys.
The 3rd embodiment
With reference to Fig. 5.
The present embodiment jib is to be made of major part part (being also referred to as " the first casing 100 "), middle housing (also claiming " the second casing 200 ") and " little head part " (not shown)." little head part " also is the body structure similar to " major part part ".That is to say that the present embodiment jib comprises three parts substantially.Middle housing is connected between major part part and the little head part.And, the connected mode of major part part and middle housing, with, the connected mode of little head part and middle housing is identical.In view of this, present embodiment and Fig. 5 describe the connected mode of major part part and middle housing in detail.
In the present embodiment, the end face of the second casing 200 overlaps with the end face of the first casing 100, and overlapping position adopts machanical fastener 600 fastening; The side of the second casing 200, bottom surface adopt solder technology to dock with side, the bottom surface of the first casing 100.
Particularly, the first weld seam 700 of the formation of the interface between the first casing 100 left surfaces and the second casing 200 left surfaces is oblique line; The bottom surface of the first weld seam 700 and the first casing 100 acutangulates; In like manner, the second weld seam (not shown) that interface between the right flank of the right flank of the first casing 100 and the second casing 200 forms also is oblique line, the bottom surface of this second weld seam and the first casing 100 also acutangulates, and above-mentioned acute angle angle is preferably 30 degree to 60 degree, most preferably is 45 degree.And the first casing 100 is connected with the underrun bottom surface weld seam 800 of the second casing 200.
Because the main bearing tension of end face of casing, therefore, use butt weld to have the possibility of weld cracking at end face, and the end face of the second casing 200 is connected with the rear machanical fastener that adopts of the end face applying of the first casing 100, then effectively eliminated the hidden danger of cracking, and connected more firm.
In other words, present embodiment has been avoided the end face butt weld place cracking of tension stress effectively, makes the bottom surface that connects two forging, side to the top, offsets the suffered a part of shearing of machanical fastener 600 of end face, thereby makes total stressed good.
During implementation, the first casing 100 and the second casing 200 preferred forging.Major part part (the first casing 100 that illustrates) and the material of microcephaly's part (not shown) can be alloy steel or aluminium alloys; Consider the loss of weight of jib, middle housing (the second casing 200 that illustrates) is preferably aluminum alloy materials.Generally speaking, machanical fastener 600 can be bolt or rivet.
Connected mode for middle housing and little head part, although do not have shown in Figure 5, but its connected mode is identical with the connected mode of major part part with middle housing: namely, middle housing inserts little head part, and the overlapping position of the end face of little head part, bottom surface, two sides and middle housing adopts mechanical fasteners.And the material of little head part can be alloy steel or aluminium alloys.
To sum up, in above-mentioned three embodiment:
Because jib is comprised of three forging, compare jib in the past, its combination is very simple, and solid and reliable.And, because the connection of jib or all adopt mechanical fasteners, or use a small amount of welding on the basis of mechanical fasteners.Compare welding, mechanical fasteners is solid and reliable, and does not damage mother metal, also is a kind of technique of green simultaneously, is worth large-scale popularization.
In addition, the utility model also provides a kind of concrete mixer, and it is provided with the jib of above-mentioned any one structure.Because concrete mixer comprises above-mentioned jib, therefore, naturally also has the technique effect of above-mentioned jib, the utility model no longer illustrates at this.
The above only is 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., all should be included within the protection domain of the present utility model.
Claims (10)
1. jib, it is characterized in that, comprise the first casing and the second casing that are connected, described the first casing and described the second casing include end face, bottom surface, left surface and four faces of right flank, described the first casing overlaps with at least one face portion of described the second casing, and intersection connects by machanical fastener.
2. described jib according to claim 1 is characterized in that described the second casing can insert in described the first casing, and four faces and four faces of described the second casing of described the first casing all partially overlap, and intersection all connects by machanical fastener.
3. described jib according to claim 2 is characterized in that the inboard of described the first tank floor also is provided with block reinforcement; After described the second casing was inserted into described the first casing, the end of described the second casing compressed with described block reinforcement and is connected.
4. described jib according to claim 1 is characterized in that a face of described the first casing overlaps with a face portion of described the second casing, and intersection connects by machanical fastener; Other three faces of described the first casing correspondingly dock with other three faces of the second casing, and are fixedly connected by welding.
5. described jib according to claim 4 is characterized in that the end face of described the first casing overlaps with the summit portion of described the second casing, and intersection connects by machanical fastener; Other three faces of described the first casing correspondingly dock with other three faces of described the second casing, and are fixedly connected by welding.
6. described jib according to claim 5 is characterized in that the bottom surface of formed the first weld seam of the interface between the left surface of the left surface of described the first casing and described the second casing and described the first casing acutangulates; The bottom surface of formed the second weld seam of the interface between the right flank of the right flank of described the first casing and described the second casing and described the first casing acutangulates.
7. described jib according to claim 6 is characterized in that, the angular range of described acute angle is 30 degree～60 degree.
8. each described jib is characterized in that according to claim 1-7, and described the first casing and described the second casing are forging; And/or the material of described the first casing is alloy steel or aluminium alloys, and the material of described the second casing is aluminium alloys.
9. each described jib is characterized in that according to claim 1-7, and described machanical fastener is bolt or rivet.
10. a concrete mixer is characterized in that, is provided with such as each described jib in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220534920 CN202882437U (en) | 2012-10-18 | 2012-10-18 | Cantilever crane and concrete pump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220534920 CN202882437U (en) | 2012-10-18 | 2012-10-18 | Cantilever crane and concrete pump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202882437U true CN202882437U (en) | 2013-04-17 |
Family
ID=48073878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220534920 Expired - Lifetime CN202882437U (en) | 2012-10-18 | 2012-10-18 | Cantilever crane and concrete pump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202882437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984578A (en) * | 2019-11-07 | 2020-04-10 | 中联重科股份有限公司 | Arm support, engineering machinery and manufacturing method of arm support |
-
2012
- 2012-10-18 CN CN 201220534920 patent/CN202882437U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984578A (en) * | 2019-11-07 | 2020-04-10 | 中联重科股份有限公司 | Arm support, engineering machinery and manufacturing method of arm support |
| CN110984578B (en) * | 2019-11-07 | 2020-11-06 | 中联重科股份有限公司 | Arm support, engineering machinery and manufacturing method of arm support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SANY AUTOMOBILE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SANYI HEAVY INDUSTRY CO LTD Effective date: 20130508 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130508 Address after: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee after: Sany Automobile Manufacturing Co.,Ltd. Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee before: SANY HEAVY INDUSTRY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |
|
| CX01 | Expiry of patent term |