CN202324648U - Concrete equipment and boom thereof - Google Patents
Concrete equipment and boom thereof Download PDFInfo
- Publication number
- CN202324648U CN202324648U CN2011204899225U CN201120489922U CN202324648U CN 202324648 U CN202324648 U CN 202324648U CN 2011204899225 U CN2011204899225 U CN 2011204899225U CN 201120489922 U CN201120489922 U CN 201120489922U CN 202324648 U CN202324648 U CN 202324648U
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- jib
- girder
- enhancement layer
- fibrous
- carbon cloth
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Abstract
The utility model provides concrete equipment and a boom thereof. The boom comprises a girder made of a first fiber composite material and a reinforced layer integrally formed by a second fiber composite material, wherein the reinforced layer is connected with the girder and is arranged on the surface of at least one part of surface outside the girder. The boom disclosed by the utility model is completely made of composite material, therefore, on one hand, the weight reducing effect is improved; and on the other hand, the impact resistant strength and the structural stability of the boom are greatly improved.
Description
Technical field
The utility model relates to the concrete equipment field, more specifically, relates to a kind of concrete equipment and jib thereof.
Background technology
Concrete equipment of the prior art (like concrete mixer or concrete spreader) is widely used in the constructions work field; And the stretching, extension of the jib in concrete equipment height will determine the working range of concrete equipment; Thereby the length of jib becomes the leading indicator of the functional performance of weighing concrete equipment.Yet if adopt high strength steel as structural meterials, when improving jib length, the weight of jib will improve greatly so, and this will reduce the flexibility and the safety of jib greatly, and be easy to cause the overload of jib.If when guaranteeing the jib safety, improve the length of jib, just require jib to have higher intensity and lighter quality.Fiber-reinforced resin matrix compound material has higher specific strength and specific modulus, also has good anti-fatigue performance and damping property, and the designability of its structure and performance is strong, can be used for making jib.Yet; Because fiber is anisotropic; Its mechanical property difference axial and radially is very big; In the recombination process of fiber and resin, need aspects such as the lay mode of material chosen, fiber and jib structure to be designed to its working condition and stressing conditions, could guarantee its safety.
Fig. 1 shows the structural representation of composite material jib of the prior art.As shown in Figure 1; The composite layer 2 ' that jib of the prior art comprises metal inner lining 1 ' and is arranged on the metal inner lining 1 ' outside; This composite layer 2 ' comprises riser 21 ' and transverse slat 22 ', and riser 21 ' forms composite layer 2 ' with transverse slat 22 ' through glueing joint.Because composite layer is that formed by splicing rather than integrated, therefore has the problem of poor stability, impact strength difference.In addition, its inner employing metal inner lining, so weight loss effect is not obvious.
The utility model content
The utility model aims to provide a kind of concrete equipment and jib thereof, to solve poor, the unconspicuous problem of weight loss effect of poor stability, impact strength of prior art jib.
For solving the problems of the technologies described above, according to an aspect of the utility model, a kind of jib of concrete equipment is provided, comprising: the girder of processing by first fibrous composite; By the integrated enhancement Layer of second fibrous composite, enhancement Layer is connected with girder, and enhancement Layer is arranged at least a portion surface in the outside of girder.
Further, first fibrous composite is by cloth and resin molding compound or by the prepreg curing molding.
Further, cloth comprises unidirectional fibre braid and/or two-way fibrous braid and/or 3 D multi-directional fibrous braid.
Further, girder comprises interconnective first and second portion, and first and second portion surround framework, and framework comprises cavity, and girder also comprises a plurality of dividing plates, and dividing plate is arranged in the cavity and support frame.
Further, dividing plate is processed by nylon or ABS resin or polystyrene or first fibrous composite.
Further, at least a portion of first is the cell body with opening, and at least a portion of second portion is a cover plate, and cover plate covers on the opening of cell body.
Further, dividing plate is with respect to the axis normal ground or the setting obliquely of girder.
Further, enhancement Layer is at least a portion surface in unidirectional lamination that stratiform is laid and/or two-way carbon cloth and/or the 3 D multi-directional carbon cloth outside that is molded over girder through resin solidification.
Further, enhancement Layer is unidirectional lamination prepreg that stratiform is laid and/or two-way carbon cloth prepreg and/or 3 D multi-directional carbon cloth prepreg curing molding at least a portion surface in the outside of girder.
Another aspect according to the utility model provides a kind of concrete equipment, comprises jib, and this jib is above-mentioned jib.
Jib in the utility model is made up of composite material fully, therefore, has improved weight loss effect on the one hand, has improved the impact strength and the structural stability of jib on the other hand greatly.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 has schematically shown the structural representation of jib of the prior art;
Fig. 2 has schematically shown the sketch map of a kind of jib in the utility model;
Fig. 3 has schematically shown the sketch map of the another kind of jib in the utility model; And
Fig. 4 has schematically shown the sectional view of jib.
The specific embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As an aspect of the utility model, a kind of jib of concrete equipment is provided.Like Fig. 2-shown in Figure 4; Jib in the utility model comprises: the girder of being processed by first fibrous composite 1 and by the integrated enhancement Layer 3 of second fibrous composite; Wherein, Enhancement Layer 3 is connected with girder 1, and enhancement Layer is arranged at least a portion surface in the outside of girder 1 (promptly can only be arranged on the surface in the outside of a part of girder, also can be provided with around the surface in the whole outside of girder).Fibrous composite has intensity height, characteristics that density is little, and its specific strength is 4 times of steel.Because this jib is made up of fibrous composite fully, therefore, improved weight loss effect on the one hand; The impact strength and the structural stability of jib have been improved on the other hand greatly; Can when guaranteeing that jib has higher-strength, keep lower weight, prevent the jib overload.Preferably, the thickness of girder is less than 5mm.
One preferred embodiment in, first fibrous composite is by cloth and resin molding compound.Wherein, cloth comprises unidirectional fibre braid and/or two-way fibrous braid and/or 3 D multi-directional fibrous braid.The fiber of cloth is one or more in glass fiber, carbon fiber, superhigh molecular weight polyethylene fibers, the aramid fiber.Resin is unsaturated polyester resin or epoxy vinyl ester resin or epoxy resin.Adopt the mode of cloth and resin molding compound, reduced the cost of first fibrous composite, and can guarantee that first fibrous material has excellent mechanical property.
Another preferred embodiment in, first fibrous composite is by the prepreg curing molding, prepreg comprises fibrage and resin.Fibrage comprises one or more in unidirectional fibre, two-way fibrous braid and the 3 D multi-directional fibrous braid.Fibrolaminar fiber is one or more in glass fiber, carbon fiber, superhigh molecular weight polyethylene fibers (molecular weight is between 1,000,000-3,000,000) or the aramid fiber.Resin is unsaturated polyester resin or epoxy vinyl ester resin or epoxy resin.Adopt the mode of prepreg curing molding; Can avoid first fibrous composite that generates with defective; Also can guarantee can not cause damage to first fibrous composite because of processing; Reduced the consumption of material on the one hand, guaranteed also that on the other hand first fibrous material has excellent mechanical property.
Enhancement Layer 3 is to be processed by carbon fiber or carbon fiber prepreg.Preferably, enhancement Layer 3 can be unidirectional lamination that stratiform is laid and/or two-way carbon cloth and/or 3 D multi-directional carbon cloth are molded over the outside of girder 1 through resin solidification this at least a portion surface.Enhancement Layer 3 also can be unidirectional lamination prepreg that stratiform is laid and/or two-way carbon cloth prepreg and/or 3 D multi-directional carbon cloth prepreg curing molding this at least a portion surface in the outside of girder 1.Resin is unsaturated polyester resin or epoxy vinyl ester resin or epoxy resin.Wherein, unidirectional lamination is main load part, and it is used to provide the tensile strength and the tensile modulus of jib; Two-way carbon cloth and 3 D multi-directional carbon cloth provide the shear strength and the impact strength of jib, thereby above-mentioned material can improve the structural stability of jib simultaneously.Especially; Can confirm lay position, type and the quantity of the carbon cloth in the enhancement Layer by the mechanical characteristic of carbon cloth; And can make enhancement Layer through one-time formed mode (girder capable of using is as the mould one-shot forming); The enhancement Layer that makes through above-mentioned one-time formed mode has more excellent mechanical property with respect to the molding mode that flitch of the prior art glueds joint, and under the situation of using less material, just can reach the requirement of strength of needs.
As shown in Figure 4, girder 1 comprises interconnective first 11 and second portion 12, and first 11 surrounds framework with second portion 12, and framework comprises cavity, and girder 1 also comprises a plurality of dividing plates 2, and dividing plate 2 is arranged in the cavity and support frame.Preferably, the density of dividing plate 2 is less than 3000Kg/m
3,, thereby in the weight that has alleviated jib self, guaranteed the intensity of jib because dividing plate has adopted the material (for example adopting nylon or ABS resin or polystyrene or first fibrous composite to process) of lightweight.In the prior art, the forming process of composite material need be by means of mould, and this causes prior art to add dividing plate in integrated girder inside.Girder in the utility model adopts interconnective first and second portion to constitute; Can process first earlier; Then dividing plate is arranged on first inside (for example through bonding mode dividing plate and first 11 are coupled together, can also the two coupled together dividing plate and not completely crued as yet first 11 integrated modes), at last first and second portion is linked into an integrated entity; Thereby; Solved in the prior art and can not both guarantee the tensile strength of jib, improved impact strength and the structural stability of jib again to the problem of the set inside dividing plate of girder; Further, because fibrous material is anisotropic, therefore can cause the horizontal impact strength of jib lower; After the inside to girder adds dividing plate; Can girder be divided into a plurality of chambers, both can improve the whole impact strength and the anti-fatigue performance of jib, can improve damping property again.In addition, the mould when girder can also serve as the enhancement Layer moulding, when the moulding enhancement Layer, the material that can be used at the peripheral lay enhancement Layer of girder is to make lightweight, high-intensity jib.Preferably; Dividing plate 2 is with respect to the axis normal ground (as shown in Figure 2) of girder 1 or (as shown in Figure 3) setting obliquely, and preferably, the angle of inclination is 30 degree, 45 degree or 60 degree; The dividing plate that employing is obliquely installed can be saved the consumption of composite material when guaranteeing jib intensity and stability.Preferably, dividing plate 2 is square or triangle or other shape.Preferably; Girder can be through making first and second portion bonding mode; Perhaps can first and second portion be solidified the all-in-one-piece mode and make, perhaps also can make through behind the curing molding through not completely crued first as yet and not completely crued second branch as yet through not completely crued resin as yet.As shown in Figure 4, preferably, at least a portion of first 11 is the cell body with opening, and at least a portion of second portion 12 is a cover plate, and cover plate covers on the opening of cell body.
Another aspect as the utility model provides a kind of concrete equipment, comprises jib, and this jib is the jib among above-mentioned each embodiment.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. the jib of a concrete equipment is characterized in that, comprising:
The girder of processing by first fibrous composite (1);
By the integrated enhancement Layer of second fibrous composite (3), said enhancement Layer (3) is connected with said girder (1), and said enhancement Layer is arranged at least a portion surface in the outside of said girder (1).
2. jib according to claim 1 is characterized in that, said first fibrous composite is by cloth and resin molding compound or by the prepreg curing molding.
3. jib according to claim 2 is characterized in that, said cloth comprises unidirectional fibre braid and/or two-way fibrous braid and/or 3 D multi-directional fibrous braid.
4. according to each described jib among the claim 1-3; It is characterized in that; Said girder (1) comprises interconnective first (11) and second portion (12), and said first (11) and said second portion (12) surround framework, and said framework comprises cavity; Said girder (1) also comprises a plurality of dividing plates (2), and said dividing plate (2) is arranged in the said cavity and supports said framework.
5. jib according to claim 4 is characterized in that, said dividing plate (2) is processed by nylon or ABS resin or polystyrene or said first fibrous composite.
6. jib according to claim 4 is characterized in that, at least a portion of said first (11) is the cell body with opening, and at least a portion of said second portion (12) is a cover plate, and said cover plate covers on the said opening of said cell body.
7. jib according to claim 4 is characterized in that, said dividing plate (2) is with respect to the axis normal ground or the setting obliquely of said girder (1).
8. jib according to claim 1; It is characterized in that said enhancement Layer (3) is said at least a portion surface in unidirectional lamination that stratiform is laid and/or two-way carbon cloth and/or the 3 D multi-directional carbon cloth outside that is molded over said girder (1) through resin solidification.
9. jib according to claim 1; It is characterized in that said enhancement Layer (3) is unidirectional lamination prepreg that stratiform is laid and/or two-way carbon cloth prepreg and/or 3 D multi-directional carbon cloth prepreg curing molding on said at least a portion surface in the outside of said girder (1).
10. a concrete equipment comprises jib, it is characterized in that, said jib is each described jib among the claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204899225U CN202324648U (en) | 2011-11-30 | 2011-11-30 | Concrete equipment and boom thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204899225U CN202324648U (en) | 2011-11-30 | 2011-11-30 | Concrete equipment and boom thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202324648U true CN202324648U (en) | 2012-07-11 |
Family
ID=46436628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204899225U Expired - Lifetime CN202324648U (en) | 2011-11-30 | 2011-11-30 | Concrete equipment and boom thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202324648U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900235A (en) * | 2012-09-19 | 2013-01-30 | 三一重工股份有限公司 | Material distribution arm support, method for manufacturing material distribution arm support, and pumping equipment |
| WO2013078919A1 (en) * | 2011-11-30 | 2013-06-06 | 中联重科股份有限公司 | Concrete device and arm support thereof |
-
2011
- 2011-11-30 CN CN2011204899225U patent/CN202324648U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013078919A1 (en) * | 2011-11-30 | 2013-06-06 | 中联重科股份有限公司 | Concrete device and arm support thereof |
| CN102900235A (en) * | 2012-09-19 | 2013-01-30 | 三一重工股份有限公司 | Material distribution arm support, method for manufacturing material distribution arm support, and pumping equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |