CN202937545U - Cylinder body of actuating cylinder and concrete pumping device - Google Patents
Cylinder body of actuating cylinder and concrete pumping device Download PDFInfo
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- CN202937545U CN202937545U CN 201220639804 CN201220639804U CN202937545U CN 202937545 U CN202937545 U CN 202937545U CN 201220639804 CN201220639804 CN 201220639804 CN 201220639804 U CN201220639804 U CN 201220639804U CN 202937545 U CN202937545 U CN 202937545U
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- cylinder body
- fibrous composite
- cylinder
- composite layer
- inside liner
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Abstract
The utility model discloses a cylinder body of an actuating cylinder. The cylinder body of the actuating cylinder comprises an inside liner (1), a first fibrous composite layer (2) which is combined with the outside of the inside liner (1), the first fibrous composite layer (2) is composited by first fibrous composite materials and matrix resin, and the matrix resin is polyurethane. The utility model further discloses a concrete pumping device which is provided with the cylinder body of the actuating cylinder. The cylinder body of the actuating cylinder is not only higher in strength, lighter in weight, better in fatigue durability and corrosion resistance, but also not prone to being damaged in working process and better in usability.
Description
Technical field
The utility model relates to the actuator cylinder field, particularly, relates to a kind of cylinder body of actuator cylinder, also relates to a kind of concrete pumping equipment with this cylinder body.
Background technique
Actuator cylinder generally includes oil hydraulic cylinder and cylinder, and its application is very extensive.For example take oil hydraulic cylinder as example, usually all include oil hydraulic cylinder in concrete pumping equipment (for example concrete mixer), be used for driving the to-and-fro motion of concrete cylinder, thus delivering concrete.In concrete mechanism, increasing concrete conveyance work adopts concrete mixer to complete at present.Along with the high speed development of concreting machinery technology, engineer operation requires concrete conveyance to higher farther distance, and the selected material of the parts such as the jib of concreting machinery, oil hydraulic cylinder is all to the high-strength light future development.The cylinder body of existing oil hydraulic cylinder is made by single alloy steel material, because the density of alloyed steel is larger, makes the own wt of oil hydraulic cylinder larger, has seriously limited the increase of concrete pump truck arm length, has restricted the development of concrete mixer.Therefore, exploitation is a kind of can satisfy simultaneously the concrete mixer requirement of strength to have again a cylinder body of the light oil hydraulic cylinder of quality significant to long-armed future development for concrete mixer.In addition, the shortcoming such as the cylinder body of the actuator cylinder of being made by single alloyed steel also has fatigue resistance and corrosion resistance is relatively poor and thermal expansivity is larger, thus make the application of actuator cylinder limited.
Developed at present a kind of internal layer and be metal internal layer, outer cylinder body for the fibrous composite layer that is composited by carbon fiber and epoxy resin.Because the toughness of carbon fiber and epoxy resin composite material is relatively poor, when being subject to external impact or scraping in operation process, easily cause fibrous composite layer failure, affect its usability.
The model utility content
The purpose of this utility model is to provide a kind of cylinder body of actuator cylinder, not only intensity is large for this cylinder body, weight is light, fatigue resistance and corrosion resistance better, and be difficult for sustaining damage in operation process, usability is better.
To achieve these goals, on the one hand, the utility model provides a kind of cylinder body of actuator cylinder, this cylinder body comprises inside liner and is combined in the first fibrous composite layer of the outside of this inside liner, described the first fibrous composite layer is composited by the first lamination coating and matrix resin, and described matrix resin is polyurethane.
On the other hand, the utility model also provides a kind of concrete pumping equipment, and wherein, the cylinder body of the pumping cylinder of this concrete pumping equipment is the cylinder body of actuator cylinder as indicated above.
Pass through technique scheme, the cylinder body of actuator cylinder comprises inside liner and the first fibrous composite layer, because fibrous composite is compared with existing metallic material, weight is lighter under equality strength, and fatigue resistance and corrosion resistance better, thermal expansivity is less, therefore can make the cylinder strength of this actuator cylinder large, weight is light, fatigue resistance and corrosion resistance better, and thermal expansivity is less, thereby makes this actuator cylinder to be more widely used.In addition, because the inside liner of cylinder body can satisfy the sealing of inboard wall of cylinder block and the requirement of the wear resistance that contacts with piston, therefore can not affect the usability of cylinder body.Further, because the matrix resin that consists of the first fibrous composite layer is polyurethane, therefore the toughness of the first fibrous composite layer is better, makes cylinder body be difficult for sustaining damage in operation process, and usability is better.
Other feature and advantage of the present utility model will partly be described in detail in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and consists of the part of specification, is used from explanation the utility model with following embodiment one, but does not consist of restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the cross-sectional schematic according to the cylinder body of the actuator cylinder of a kind of mode of execution of the present utility model;
Fig. 2 is the local enlarged diagram of the A section in Fig. 1;
Description of reference numerals
1 inside liner; 2 first fibrous composite layers;
3 isolation layers; 13 hydraulic fluid ports.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.Should be understood that, embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
As depicted in figs. 1 and 2, a kind of cylinder body of actuator cylinder is provided according to a kind of mode of execution of the present utility model, wherein, this cylinder body comprises inside liner 1 and is combined in the first fibrous composite layer 2 of the outside of this inside liner 1, described the first fibrous composite layer 2 is composited by the first lamination coating and matrix resin, and described matrix resin is polyurethane.
Pass through technique scheme, the cylinder body of actuator cylinder comprises inside liner 1 and the first fibrous composite layer 2, because fibrous composite is compared with existing metallic material, weight is lighter under equality strength, and fatigue resistance and corrosion resistance better, thermal expansivity is less, therefore can make the cylinder strength of this actuator cylinder large, weight is light, fatigue resistance and corrosion resistance better, and thermal expansivity is less, thereby makes this actuator cylinder to be more widely used.In addition, because the inside liner of cylinder body can satisfy the sealing of inboard wall of cylinder block and the requirement of the wear resistance that contacts with piston, therefore can not affect the usability of cylinder body.Further, because the matrix resin that consists of the first fibrous composite layer 2 is polyurethane, therefore the toughness of the first fibrous composite layer 2 is better, makes cylinder body be difficult for sustaining damage in operation process, and usability is better.
Described inside liner 1 can select the various suitable material of the requirement of the sealing that can satisfy inboard wall of cylinder block and the wear resistance that contacts with piston to make, and for example can adopt the existing metallic material that is generally used for making cylinder body to make.
The fibrous composite of mentioning in the utility model (for example fibrous composite of the second fibrous composite layer of the first fibrous composite layer 2, the formation isolation layer 3 hereinafter mentioned) refers to the material that is composited by lamination coating and matrix resin, namely fiber-resin composite.
Described the first fibrous composite layer 2 can adopt various suitable lamination coatings and matrix resin (polyurethane) compound and make, lamination coating for example can be selected from one or more in glass fibre, aramid fibre, superhigh molecular weight polyethylene fibers, carbon fiber.Preferably, the carbon fiber composite made by carbon fibre material and polyurethane of the first fibrous composite layer 2.Carbon fiber composite has lightweight, high strength, high rigidity, good vibration damping, endurance and the series of advantages such as corrosion-resistant.In the lamination coating that is used to form the first fibrous composite layer 2, what have is conductive material, what have is non-conducting material, (for example inside liner 1 is made by metallic material when described inside liner 1 and the first fibrous composite layer 2 are made by conductive material, the first fibrous composite layer is made by carbon fiber composite) time, preferably, also be provided with isolation layer 3 between described inside liner 1 and the first fibrous composite layer 2.Thereby can prevent from electrochemical corrosion occurring between inside liner 1 and the first fibrous composite layer 2, extend the life-span of the cylinder body of actuator cylinder.Isolation layer 3 can adopt various suitable insulating material to make, and for example described isolation layer 3 can be the second fibrous composite layer, and this second fibrous composite layer is composited by the second lamination coating and matrix resin.The second lamination coating can be selected from one or more in glass fibre, aramid fibre, superhigh molecular weight polyethylene fibers, basalt fibre.Consist of the matrix resin of the second fibrous composite layer such as thinking unsaturated polyester, vinylite, phenolic resin etc.
Preferably, cylinder body comprises that also the described inside liner 1 of next-door neighbour is arranged on the adhesive layer of described inside liner 1 outside.This adhesive layer can improve the interfacial adhesion performance between inside liner 1 and its outside fibrous composite layer (for example the first fibrous composite layer 2 or isolation layer 3).In the cylinder body that possesses above-mentioned isolation layer 3, isolation layer 3 for example can stick on inside liner 1 by the high tenacity adhesive.
The utility model does not relate to the change to the global shape of the cylinder body of described actuator cylinder, that is to say, the structure of the global shape of the cylinder body of actuator cylinder can be identical with the cylinder body of existing actuator cylinder, can be roughly the cylindrical of hollow, and be provided with connecting thread and/or hydraulic fluid port etc. at two ends, wherein connecting thread is mainly used in being connected with the end cap of actuator cylinder, and hydraulic fluid port is mainly used in being connected with the working oil path of actuator cylinder, so that the active chamber in working oil path and cylinder body is communicated with.The main model utility point of the utility model is cylinder body is divided into a plurality of material layers, thereby improves intensity, the weight reduction of cylinder body, and improves corrosion resistance and fatigue resistance, reduces thermal expansivity.A plurality of material layers of cylinder body (for example above-mentioned inside liner 1, the first fibrous composite layer 2 and isolation layer 3) can adopt uniform thickness or inhomogeneous thickness separately.Preferably, as shown in Figure 1 to Figure 3, described inside liner 1 is roughly tubular, comprises intermediate portion and lays respectively at two ends of this intermediate portion both sides, and the thickness of described intermediate portion is provided with hydraulic fluid port 13 greater than the thickness of described end on described end.Preferably, the thickness of the described first fibrous composite layer 2 in the outside, described end is greater than the thickness of described the first fibrous composite layer 2 outside described intermediate portion.Thereby reduce the problem of stress concentration that causes due to the thickness difference between end and intermediate portion.
More preferably, the thickness of the described first fibrous composite layer 2 in the outside, described end is transitioned into the thickness of the described first fibrous composite layer 2 in the described intermediate portion outside gradually.Thereby further eliminate because thickness changes suddenly the concentrated problem of stress of bringing.
On the other hand, the utility model also provides a kind of concrete pumping equipment, and wherein, the cylinder body of the pumping cylinder of this concrete pumping equipment is the cylinder body of actuator cylinder as indicated above.
Also on the other hand, the utility model also provides a kind of manufacture method of cylinder body of actuator cylinder, and wherein, the method comprises: form the inside liner step: form inside liner 1; And integrating step: adopt the first lamination coating and matrix resin to form the first fibrous composite layer 2 and also this first fibrous composite layer 2 is attached to the outside of described inside liner 1, and described matrix resin is polyurethane.
Pass through technique scheme, the cylinder body of actuator cylinder comprises inside liner 1 and the first fibrous composite layer 2, because fibrous composite is compared with existing metallic material, weight is lighter under equality strength, and fatigue resistance and corrosion resistance better, thermal expansivity is less, therefore can make the cylinder strength of this actuator cylinder large, weight is light, fatigue resistance and corrosion resistance better, and thermal expansivity is less, thereby makes this actuator cylinder to be more widely used.In addition, because the inside liner of cylinder body can satisfy the sealing of inboard wall of cylinder block and the requirement of the wear resistance that contacts with piston, therefore can not affect the usability of cylinder body.Further, because the matrix resin that consists of the first fibrous composite layer 2 is polyurethane, therefore the toughness of the first fibrous composite layer 2 is better, makes cylinder body be difficult for sustaining damage in operation process, and usability is better.
Described inside liner 1 can select the various suitable material of the requirement of the sealing that can satisfy inboard wall of cylinder block and the wear resistance that contacts with piston to make, and for example can adopt the existing metallic material that is generally used for making cylinder body to make.
Described the first fibrous composite layer 2 can adopt various suitable lamination coatings and matrix resin (polyurethane) compound and make, lamination coating for example can be selected from one or more in glass fibre, aramid fibre, superhigh molecular weight polyethylene fibers, carbon fiber.Preferably, in described integrating step, adopt carbon fiber and polyurethane to form described the first fibrous composite layer 2.Carbon fiber composite has lightweight, high strength, high rigidity, good vibration damping, endurance and the series of advantages such as corrosion-resistant.In the lamination coating that is used to form the first fibrous composite layer 2, what have is conductive material, and what have is non-conducting material, preferably, in described formation inside liner step, by conductive material (metallic material for example, more specifically, 27SiMn for example) form described inside liner 1; In described integrating step, form described the first fibrous composite layer 2 by conductive material (for example carbon fiber composite); And described manufacture method also comprises formation isolation layer step: before described integrating step, first at the outer formation isolation layer 3 of described inside liner 1, thereby make this isolation layer 3 between described inside liner 1 and the first fibrous composite layer 2.Thereby can prevent from electrochemical corrosion occurring between inside liner 1 and the first fibrous composite layer 2, extend the life-span of the cylinder body of actuator cylinder.Isolation layer 3 can adopt various suitable insulating material to make, and for example in described formation isolation layer step, adopts the second lamination coating and matrix resin to form the second fibrous composite layer, with as described isolation layer 3.The second lamination coating can be selected from one or more in glass fibre, aramid fibre, superhigh molecular weight polyethylene fibers, basalt fibre.Consist of the matrix resin of the second fibrous composite layer such as thinking unsaturated polyester, vinylite, phenolic resin etc.For example can form isolation layer 3 by the mode that lamination coating cloth (for example glass fiber cloth) is coated on inside liner 1 outside.
Preferably, the method also comprises formation adhesive layer step: after described formation inside liner step, be close to described inside liner 1 and form the adhesive layer that is positioned at described inside liner 1 outside.This adhesive layer can improve the interfacial adhesion performance between inside liner 1 and its outside fibrous composite layer (for example the first fibrous composite layer 2 or isolation layer 3).In the cylinder body that possesses above-mentioned isolation layer 3, isolation layer 3 for example can stick on inside liner 1 by the high tenacity adhesive.For example, after the outside coating adhesive adhensive layer of inside liner 1, at the outside second lamination coating cloth that coats of this adhesive layer, to form the second fibrous composite layer as isolation layer 3.
Can adopt various suitable modes to form and in conjunction with the first fibrous composite layer, preferably, in described integrating step, the first lamination coating that adopts wet-winding craft will be soaked with the pencil of matrix resin (liquid raw material of polyurethane is such as comprising isocyanates, polyatomic alcohol polybasic alcohol and auxiliary agent etc.) is wrapped in the outside of described inside liner 1.Specifically, after the liquid polyurethane that the first continuous fiber impregnation can be configured, be wound on the inside liner 1 that fixes through Stetch Wrapping Machine wrapping wire mouth, complete the winding of fiber.The prepared product of Wet Winding Process shaping can be given full play to the characteristics of composite material, make goods obtain to greatest extent desired structural behaviour, and the moulding cost is lower, and technique is comparatively simple.
The utility model does not relate to the change to the global shape of the cylinder body of described actuator cylinder, that is to say, the structure of the global shape of the cylinder body of actuator cylinder can be identical with the cylinder body of existing actuator cylinder, can be roughly the cylindrical of hollow, and be provided with connecting thread and/or hydraulic fluid port etc. at two ends.The main model utility point of the utility model is cylinder body is divided into a plurality of material layers, thereby improves intensity, the weight reduction of cylinder body, and improves corrosion resistance and fatigue resistance, reduces thermal expansivity.A plurality of material layers of cylinder body (for example above-mentioned inside liner 1, the first fibrous composite layer 2, isolation layer 3 and the second fibrous composite layer 4) can adopt uniform thickness or inhomogeneous thickness separately.Preferably, described formation inside liner step comprises: the liner base that is roughly hollow cylindrical material is provided; And machining processes: the mode by machining (for example turning) is with the segment thickness attenuate of described liner base material, so that described inside liner 1 forms two ends that comprise intermediate portion and lay respectively at this intermediate portion both sides, the thickness of described intermediate portion is greater than the thickness of described end, and forms hydraulic fluid port 13 on described end.In described integrating step, the thickness of described the first fibrous composite layer 2 that forms in the outside, described end is greater than the thickness of described the first fibrous composite layer 2 that forms outside described intermediate portion.Thereby reduce the problem of stress concentration that causes due to the thickness difference between end and intermediate portion.
More preferably, in described integrating step, make the thickness of the described first fibrous composite layer 2 in the outside, described end be transitioned into gradually the thickness of the described first fibrous composite layer 2 in the described intermediate portion outside.Thereby further eliminate because thickness changes suddenly the concentrated problem of stress of bringing.
The below take as Fig. 1 to the mode of execution of the cylinder body of actuator cylinder shown in Figure 2 as example, schematic illustration is the manufacture process of this cylinder body once.
(1) form as depicted in figs. 1 and 2 inside liner 1 by mach mode.Can carry out sand blast to the outer wall of inside liner 1, and clean up.
(2) after the outside coating adhesive adhensive layer of inside liner 1, at the outside second lamination coating cloth that coats of this adhesive layer, to form the second fibrous composite layer as isolation layer 3.
(3) mode by Wet Winding Process forms the first fibrous composite layer 2 in the outside of isolation layer 3.
(5) above-mentioned cylinder body is put into baking oven, in order to be heating and curing moulding.
The cylinder body of above-mentioned actuator cylinder and manufacture method thereof can be applied to various actuator cylinders, comprise oil hydraulic cylinder, cylinder etc., this cylinder body is such as the cylinder body that can be widely used as the actuator cylinder in the various engineering machinery such as concrete mixer, hoist, excavator, fire-fighting truck, high-altitude operation vehicle, environmental sanitation machinery.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned mode of execution; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Need to prove that in addition each the concrete technical characteristics described in above-mentioned embodiment in reconcilable situation, can make up by any suitable mode.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between various mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. the cylinder body of an actuator cylinder, it is characterized in that, this cylinder body comprises inside liner (1) and is combined in the first fibrous composite layer (2) of the outside of this inside liner (1), described the first fibrous composite layer (2) is composited by the first lamination coating and matrix resin, and described matrix resin is polyurethane.
2. the cylinder body of actuator cylinder according to claim 1, is characterized in that, described inside liner (1) is made by metallic material.
3. the cylinder body of actuator cylinder according to claim 1, it is characterized in that, described inside liner (1) and described the first fibrous composite layer (2) are made by conductive material, also are provided with isolation layer (3) between described inside liner (1) and the first fibrous composite layer (2).
4. the cylinder body of actuator cylinder according to claim 3, is characterized in that, described isolation layer (3) is the second fibrous composite layer, and this second fibrous composite layer is composited by the second lamination coating and matrix resin.
5. the cylinder body of actuator cylinder according to claim 4, is characterized in that, described the second lamination coating is glass fibre.
6. the cylinder body of actuator cylinder according to claim 1, is characterized in that, described the first lamination coating is carbon fiber.
7. the cylinder body of the described actuator cylinder of any one according to claim 1 to 6, is characterized in that, this cylinder body comprises that also the described inside liner of next-door neighbour (1) is arranged on the outside adhesive layer of described inside liner (1).
8. the cylinder body of the described actuator cylinder of any one according to claim 1 to 6, it is characterized in that, described inside liner (1) is roughly tubular, comprise intermediate portion and lay respectively at two ends of this intermediate portion both sides, the thickness of described intermediate portion is greater than the thickness of described end, be provided with hydraulic fluid port (13) on described end, the thickness of the described first fibrous composite layer (2) in the outside, described end is greater than the thickness of described the first fibrous composite layer (2) outside described intermediate portion.
9. the cylinder body of actuator cylinder according to claim 8, is characterized in that, the thickness of the described first fibrous composite layer (2) in the outside, described end is transitioned into the thickness of described the first fibrous composite layer (2) outside described intermediate portion gradually.
10. a concrete pumping equipment, is characterized in that, the cylinder body of the pumping cylinder of this concrete pumping equipment is the cylinder body of the described actuator cylinder of any one according to claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220639804 CN202937545U (en) | 2012-11-28 | 2012-11-28 | Cylinder body of actuating cylinder and concrete pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220639804 CN202937545U (en) | 2012-11-28 | 2012-11-28 | Cylinder body of actuating cylinder and concrete pumping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937545U true CN202937545U (en) | 2013-05-15 |
Family
ID=48321787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220639804 Expired - Lifetime CN202937545U (en) | 2012-11-28 | 2012-11-28 | Cylinder body of actuating cylinder and concrete pumping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937545U (en) |
-
2012
- 2012-11-28 CN CN 201220639804 patent/CN202937545U/en not_active Expired - Lifetime
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |