Pump push connecting plate and airspace engine

Abstract

The utility model provides a pump push connecting plate and an airspace engine. The pump push connecting plate at least comprises a connecting plate base body and a metal pipeline embedded in the connecting plate base body. The connecting plate base body at least comprises an aramid fiber layer and a UPE fiber layer which are arranged on the surface layer, and a middle layer formed by alternately laying carbon fibers and glass fibers. And the adjacent layers are cured and molded after being subjected to hot pressing by resin. The pump push connecting plate is arranged between the turbine pump and the thrust chamber and used for installing and fixing all components of the engine.

Description

TECHNICAL FIELD

[0001] The utility model relates to space engine technical field especially relates to a pump pushes the connecting plate and space engine. BACKGROUND

[0002] In the general assembly layout of space engine, whether pump front swing layout or pump rear swing layout, more parts need to be installed and fixed. In order to simplify the general assembly layout of engine, guarantee the reliable installation of component, usually design connecting plate between engine thrust chamber and turbine pump, for the installation and fixation of engine component and the layout pipeline. At present, pump push connecting plate generally selects aluminum alloy material, carries out anodic oxidation treatment on the surface, not only high cost, heavy weight, and can not improve the general assembly layout of messy engine.

[0003] Therefore, it is urgent to provide a pump push connecting plate and space engine with small weight and capable of optimizing the general assembly layout of engine. UTILITY MODEL CONTENTS

[0004] To solve the above technical problem, the utility model provides a pump push connecting plate and space engine, which uses a composite material with low cost as forming material, and embeds a metal pipeline in the pump push connecting plate, thereby realizing weight reduction, cost reduction and optimization of general assembly layout.

[0005] The utility model provides a pump push connecting plate at least includes connecting plate base body and metal pipeline preburied in the connecting plate base body, the connecting plate base body at least includes the aramid layer and UPE fiber layer placed in the surface layer, and the intermediate layer formed by the alternate layering of carbon fiber and glass fiber, and the adjacent layers are solidified and formed after resin hot pressing.

[0006] In an embodiment, the connecting plate base body is provided with a mounting hole and a preburied channel, and the metal pipeline is arranged in the preburied channel.

[0007] In an embodiment, the aramid layer includes a first aramid layer of the upper surface layer and a second aramid layer of the lower surface layer, the UPE fiber layer includes a first UPE fiber layer arranged at the bottom of the first aramid layer and a second UPE fiber layer arranged at the top of the second aramid layer, and the intermediate layer is arranged between the first UPE fiber layer and the second UPE fiber layer.

[0008] In an embodiment, the intermediate layer includes at least N layers of carbon fiber plain weave cloth layers and N-1 layers of glass fiber layers, wherein N is a natural number greater than 2.

[0009] In an embodiment, the intermediate layer includes the first carbon fiber plain weave cloth layer, the first glass fiber layer, the second carbon fiber plain weave cloth layer, the second glass fiber layer, the third carbon fiber plain weave cloth layer, the third glass fiber layer and the fourth carbon fiber plain weave cloth layer which are alternately layered.

[0010] In one embodiment, a stitching line is further included to fixedly connect the first aramid layer, the first UPE fiber layer, the first carbon fiber scrim layer, the first glass fiber layer, the second carbon fiber scrim layer, the second glass fiber layer, the third carbon fiber scrim layer, the third glass fiber layer, the fourth carbon fiber scrim layer, the second UPE fiber layer and the second aramid layer.

[0011] In one embodiment, the first aramid layer and the second aramid layer are 0° layup; the first carbon fiber scrim layer, the second carbon fiber scrim layer, the third carbon fiber scrim layer and the fourth carbon fiber scrim layer are 45° layup; and the first glass fiber layer, the second glass fiber layer and the third glass fiber layer are 90° layup.

[0012] In one embodiment, the thickness of the connecting plate base body ranges from 8mm to 11mm.

[0013] In one embodiment, the thickness of each layer of the connecting plate base body is substantially the same.

[0014] The utility model provides a kind of aerospace engine, at least including the pump push connecting plate described in any one embodiment of the above;The pump push connecting plate is arranged between turbine pump and thrust chamber, for the installation fixed of each component of engine.

[0015] The utility model provides a kind of pump push connecting plate and aerospace engine, by composite material manufacturing connecting plate, and pre-embedded metal pipeline in connecting plate, simplify the pipeline layout of engine, improve the space utilization of connecting plate, also greatly reduce manufacturing cost and overall weight.

[0016] After reading the specific embodiment and in viewing the attached drawings, those skilled in the art will recognize additional features and advantages. BRIEF DESCRIPTION OF DRAWINGS

[0017] To more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows, obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without paying creative labor.

[0018] Figure 1 It is the distribution schematic diagram of upper surface layer, middle layer and lower surface layer of the pump push connecting plate of the utility model embodiment.

[0019] Figure 2 It is the whole structure schematic diagram of the pump push connecting plate of the utility model embodiment. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of the present application clearer, the features and exemplary embodiments of each aspect of the present application will be described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely configured to explain the present application and serve as exemplary description of the principles of the present application, and are not configured to limit the present application. In addition, the components in the drawings are not necessarily drawn to scale. For example, the size of some components in the drawings can be enlarged for other components or areas to help understand the embodiments of the present application.

[0021] The orientation words appearing in the following description are the directions shown in the drawings, and are not limited to the specific structure of the embodiments of the present application. In the description of the present application, it should be noted that, unless otherwise specified, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] In addition, the terms "including", "containing", "having" or any other variant thereof are intended to cover non-exclusive inclusion, so that the inclusion of a series of element structures or components not only includes those elements, but also includes other elements not explicitly listed or inherent to the structure, component. Without more limitations, the elements defined by the statement "including" do not exclude the presence of other identical elements in the article or device including the elements.

[0023] Spatial relationship terms such as "below", "under", "lower", "above", "upper", "on", "higher", etc. are used to facilitate description and to explain the position of one element relative to a second element, and these terms are intended to cover different orientations of the device, except for those orientations different from the orientations shown in the drawings. In addition, for example, "one element is on / under another element" can mean that the two elements are in direct contact, or that there are other elements between the two elements. In addition, terms such as "first", "second", etc. are also used to describe various elements, regions, parts, etc. and should not be considered as limiting. Similar terms are used throughout the description to represent similar elements.

[0024] For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by showing examples of the present application.

[0025] Referring to Figure 1 The utility model discloses a pump push connecting plate for reliable installation of various components in the engine. The pump push connecting plate comprises a connecting plate base body and a metal pipeline embedded in the connecting plate base body. To further reduce the weight of the connecting plate, the connecting plate base body can be formed by using composite materials. For example, the connecting plate base body comprises an upper surface layer S1 formed by aramid layers and UPE fiber layers, an intermediate layer S2 formed by alternating layers of carbon fibers and glass fibers, and a lower surface layer S3 formed by aramid layers and UPE fiber layers. The adjacent layers are solidified and formed by hot pressing and resin curing. The embodiment realizes weight reduction and cost reduction of the pump push connecting plate by using the characteristics of low density, high strength and low cost of composite materials.

[0026] In the above embodiment, to optimize the layout of the engine pipeline, the metal pipeline is embedded in the connecting plate base body according to assembly requirements. Specifically, mounting holes and embedded channels can be provided in the connecting plate base body according to the assembly requirements of the metal pipeline, and the metal pipeline is positioned and installed in the embedded channels through the mounting holes. Then, short fibers can be filled and UPE fiber layers and aramid layers can be laid on the hole surface, and resin can be introduced into the hole surface in vacuum and solidified. After solidification, the composite material surface can be polished. In addition, metal tools can be embedded at the bolt installation position to facilitate the installation of bolts and nuts, prevent the bolts and nuts from directly contacting the composite material, and avoid damage to the composite material base body caused by repeated disassembly and assembly of the bolts and nuts.

[0027] Referring to Figure 1 , Figure 2 In one embodiment, the aramid layers comprise a first aramid layer 1 in the upper surface layer S1 and a second aramid layer 11 in the lower surface layer S2, and the UPE fiber layers comprise a first UPE fiber layer 2 arranged at the bottom of the first aramid layer 1 and a second UPE fiber layer 10 arranged at the top of the second aramid layer 11. The intermediate layer S3 is arranged between the first UPE fiber layer 2 and the second UPE fiber layer 10.

[0028] In the embodiment, the aramid layers and the UPE fiber layers are arranged on both sides in the thickness direction of the connecting plate base body to improve the surface strength, wear resistance and impact resistance of the connecting plate. The intermediate layer is formed by alternating layers of carbon fibers and glass fibers at ±45° / 90° to balance the mechanical properties such as strength, modulus and toughness of the connecting plate, improve the impact resistance, and reduce the anisotropy of the connecting plate.

[0029] Referring to Figure 1 , Figure 2In the above embodiments, the intermediate layer 3 comprises at least N layers of carbon fiber plain cloth and N-1 layers of glass fiber, wherein N is a natural number greater than 2. For example, the intermediate layer comprises 4 layers of carbon fiber plain cloth and 3 layers of glass fiber, and the 4 layers of carbon fiber plain cloth and the 3 layers of glass fiber are alternately laid.

[0030] Specifically, the intermediate layer 3 comprises a first carbon fiber plain cloth layer 3, a first glass fiber layer 4, a second carbon fiber plain cloth layer 5, a second glass fiber layer 6, a third carbon fiber plain cloth layer 7, a third glass fiber layer 8, and a fourth carbon fiber plain cloth layer 9 which are alternately laid.

[0031] UPE stands for Ultra High Molecular Weight Polyethylene.

[0032] In any one of the above embodiments, the first aramid layer 1 and the second aramid layer 11 are 0° layup, the first UPE fiber layer 2 and the second UPE fiber layer 10 are 0° / 90° layup, the first carbon fiber plain cloth layer 3, the second carbon fiber plain cloth layer 5, the third carbon fiber plain cloth layer 7, and the fourth carbon fiber plain cloth layer 9 are 45° layup, and the first glass fiber layer 4, the second glass fiber layer 6, and the third glass fiber layer 8 are 90° layup. That is, the embodiment of the utility model adopts 0° aramid layer + 0° / 90° UPE fiber layer + 45° carbon fiber plain cloth layer + 90° glass fiber layer + 45° carbon fiber plain cloth layer + 90° glass fiber layer + 45° carbon fiber plain cloth layer + 90° glass fiber layer + 45° carbon fiber plain cloth layer + 0° / 90° UPE fiber layer + 0° aramid layer alternately laid.

[0033] After all the layups are completed, in order to improve the connectivity of each layer, a stitching process can be added. For example, the pump connecting plate of the embodiment further comprises a stitching line 12 for fixedly connecting the first aramid layer 1, the first UPE fiber layer 2, the first carbon fiber plain cloth layer 3, the first glass fiber layer 4, the second carbon fiber plain cloth layer 5, the second glass fiber layer 6, the third carbon fiber plain cloth layer 7, the third glass fiber layer 8, the fourth carbon fiber plain cloth layer 9, the second UPE fiber layer 10, and the second aramid layer 11. The stitching line 12 is uniformly distributed on the surface layer of the connecting plate body after penetrating through all the layups.

[0034] After the layup and stitching process are completed, resin is poured into the connecting plate body by using a vacuum infusion process, and then the resin is cured and formed by using a hot pressing process. After the connecting plate body (connecting plate preform) is formed, mounting holes and pre-embedded channels are machined by numerical control. Alternatively, 3D printing technology can be used to pre-embed the metal pipeline.

[0035] In the above embodiment, the thickness of the connecting plate base ranges from 8mm to 11mm. As the most optimal choice, the thickness of the connecting plate base is preferably 10mm. It should be noted that the thickness of each layer forming the connecting plate base can be substantially the same, or the thickness of each layer can be adjusted adaptively according to requirements.

[0036] The above embodiments can be combined with each other and have corresponding technical effects.

[0037] The utility model discloses a kind of aerospace engines, at least including the pump push connecting plate in any one of the above embodiments. Pump push connecting plate is arranged between turbine pump and thrust chamber, for the installation and fixation of each component of engine. Metal pipeline is pre-embedded in pump push connecting plate, solve the layout not enough compact, land area, weight and other technical problems in prior art.

[0038] The utility model discloses a kind of pump push connecting plate and aerospace engines, pump push connecting plate is made of composite material, and weight is small and manufacturing cost is low, solve the current pump push connecting plate on layout utilization rate, weight, production cost and other technical problems, further reduce the weight of aerospace engine.

[0039] The above only for the preferred embodiment of the utility model, and not to limit the utility model, any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A push-to-connect board, characterized by, The connecting plate base body and a metal pipeline embedded in the connecting plate base body; The connecting plate base body comprises an aramid layer and a UPE fiber layer arranged on the surface layer, and an intermediate layer formed by alternately laying carbon fiber and glass fiber.

2. The push-to-connect board of claim 1, wherein, The connecting plate base body is provided with a mounting hole and an embedded channel, and the metal pipeline is arranged in the embedded channel.

3. The push-to-connect board of claim 1, wherein, The aramid layer comprises a first aramid layer arranged on the upper surface layer and a second aramid layer arranged on the lower surface layer; the UPE fiber layer comprises a first UPE fiber layer arranged at the bottom of the first aramid layer and a second UPE fiber layer arranged at the top of the second aramid layer; The intermediate layer is arranged between the first UPE fiber layer and the second UPE fiber layer.

4. The push-to-connect board of claim 3, wherein, The intermediate layer comprises N layers of carbon fiber plain cloth and N-1 layers of glass fiber. N is a natural number greater than 2.

5. The push-to-connect board of claim 4, wherein, The intermediate layer comprises a first carbon fiber plain cloth layer, a first glass fiber layer, a second carbon fiber plain cloth layer, a second glass fiber layer, a third carbon fiber plain cloth layer, a third glass fiber layer, and a fourth carbon fiber plain cloth layer which are alternately laid.

6. The push-to-connect board of claim 5, wherein, The first aramid layer, the first UPE fiber layer, the first carbon fiber plain cloth layer, the first glass fiber layer, the second carbon fiber plain cloth layer, the second glass fiber layer, the third carbon fiber plain cloth layer, the third glass fiber layer, the fourth carbon fiber plain cloth layer, the second UPE fiber layer, and the second aramid layer are fixedly connected by a stitching line.

7. The push-to-connect board of claim 6, wherein, The first aramid layer and the second aramid layer are 0° laid; the first carbon fiber plain cloth layer, the second carbon fiber plain cloth layer, the third carbon fiber plain cloth layer, and the fourth carbon fiber plain cloth layer are 45° laid; and the first glass fiber layer, the second glass fiber layer, and the third glass fiber layer are 90° laid.

8. The push-to-connect board of any one of claims 1 to 7, wherein, The thickness of the connecting plate base body ranges from 8 mm to 11 mm.

9. The push-to-connect board of claim 8, wherein, The thickness of each layer of the connecting plate base body is approximately the same.

10. A space propulsion engine, characterized by The connecting plate base body comprises the pump connecting plate according to any one of claims 1 to 9; the pump connecting plate is arranged between a turbine pump and a thrust chamber, and is used for mounting and fixing each component of an engine.

Images