Arch bridge type flow guide pipe

Abstract

The utility model relates to the technical field of fan blade bonding auxiliary structures, in particular to an arch bridge type flow guide pipe which comprises a semicircular pipe and horizontal plates, the two side walls of the semicircular pipe are respectively connected with the end portion of one horizontal plate, the two horizontal plates are arranged in a coplanar mode, the semicircular pipe is arranged to facilitate injection of resin, the semicircular pipe and the two horizontal plates form an arch bridge shape, and therefore the flow guide pipe is convenient to use. When the structure is manufactured, the bearing capacity to external pressure can be improved through the tops of the semicircular pipes, so that stress deformation of solidified resin is avoided, the strength of the solidified resin is greatly improved, in addition, the usage amount of PVC raw materials during structure manufacturing can be reduced through cooperation of the semicircular pipes and the horizontal plates, and the production cost is greatly saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan leaf bonding auxiliary structure technical field, especially arch bridge type flow guide pipe. BACKGROUND

[0002] Wind power blade is the key component in wind turbine generator set, and its main function is to convert wind energy into mechanical energy, and then drive the generator to generate electricity, in the manufacturing process of wind power blade, resin needs to be used to bond the blade or other components, so the flow guide pipe is often used as the guiding structure of resin.

[0003] However, the existing structure still cannot overcome the reduction of the thickness of the flow guide pipe under the condition of constant structural strength, so the raw materials used in the manufacturing of the flow guide pipe are greatly wasted, and the manufacturing cost is skyrocketed. UTILITY MODEL CONTENTS

[0004] The utility model discloses an arch bridge type flow guide pipe to solve the situation in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme arch bridge type flow guide pipe, include: semicircle pipe and horizontal board, the both sides wall of semicircle pipe is connected with the end of a horizontal board respectively, and the two horizontal boards are arranged on the same plane.

[0006] Preferably, the semicircle bottom end is coplanar with the bottom of the horizontal plate.

[0007] Preferably, the length of the semicircle pipe is equal to the length of the horizontal plate.

[0008] Preferably, the width of the two horizontal plates is equal.

[0009] Preferably, the semicircle pipe is provided with a plurality of friction strips on the side wall in the length direction thereof.

[0010] Preferably, the semicircle pipe is provided with a plurality of guide strips on the inner wall in the length direction thereof.

[0011] Preferably, the arc length of the semicircle pipe is greater than the width of the horizontal plate.

[0012] Preferably, the inner diameter of the semicircle pipe is greater than the width of the horizontal plate.

[0013] Preferably, the bottom of the horizontal plate is provided with a plurality of friction protrusions.

[0014] Preferably, the top of the horizontal plate is provided with a plurality of friction protrusions two.

[0015] The utility model has the advantages of the following:

[0016] By setting the semicircular pipe, resin injection is facilitated, the semicircular pipe and the two horizontal plates form an arch bridge shape, the top of the semicircular pipe can increase the bearing capacity of external pressure, so as to avoid the resin in solidification from being deformed under stress, greatly increasing the strength of the resin after solidification, and in addition, the cooperation of the semicircular pipe and the horizontal plate can reduce the amount of PVC raw material used in structure manufacturing, greatly saving the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a side view of the main structure of the utility model.

[0018] In the drawing: semicircular pipe 1, horizontal plate 2. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0020] In the description of the utility model, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0021] Embodiment one: reference Figure 1 The arch bridge type flow guide pipe comprises a semicircular pipe 1 and a horizontal plate 2, the two side walls of the semicircular pipe 1 are respectively connected with the end portions of the horizontal plates 2, and the two horizontal plates 2 are coplanarly arranged.

[0022] The principle and beneficial effects of the above scheme are:

[0023] When bonding the fan blades, a fixing fixture is first placed on the fan blades. Each of the inner walls of the fixture has a slot. Then, the other ends of the two horizontal plates 2 of the structure are inserted into the slots. Resin is then injected between the semi-circular tube 1 and the surface of the fan blades. After the resin cures, the structure is removed, and then the fixture is removed to complete the bonding of the fan blades. The semi-circular tube 1 not only facilitates the injection of resin, but also forms an arch bridge with the two horizontal plates 2. The top of the semi-circular tube 1 can increase the resistance to external pressure, so as to avoid the resin from deforming under stress during solidification. This greatly increases the strength of the cured resin. In addition, the cooperation between the semi-circular tube 1 and the horizontal plates 2 can reduce the amount of PVC raw materials used in the manufacturing of the structure, which greatly saves production costs.

[0024] Example 2: Reference Figure 1 The bottom end of the semi-circular tube 1 is coplanar with the bottom of the horizontal plate 2.

[0025] The principles and beneficial effects of the above scheme are as follows:

[0026] The two bottom ends of the semi-circular tube 1 in the width direction are set on the same plane as the bottom of the horizontal plate 2. This can prevent gaps from forming between the bottom of the horizontal plate 2 and the fan blade after the structure and tooling are inserted, reduce the amount of resin used, improve the bonding effect and aesthetics, and prevent changes in the fan blade structure after bonding. It can also prevent pressure differences from being generated on the surface of the object when air flows over the bonding point, which would cause the fan blade to vibrate at the bonding point, thus greatly improving the stability and safety of the fan blade during use.

[0027] Example 3: Reference Figure 1 The length of the semicircular tube 1 is equal to the length of the horizontal plate 2.

[0028] The principles and beneficial effects of the above scheme are as follows:

[0029] Since the length of the semicircular tube 1 is equal to the length of the horizontal plate 2, after the structure and tooling are connected and fitted together, the ends of the structure will not warp due to the excessive length of the structure.

[0030] Example 4: Reference Figure 1 The two horizontal plates 2 have the same width.

[0031] The principles and beneficial effects of the above scheme are as follows:

[0032] Since the two horizontal plates 2 are of equal width, the installation accuracy after the structure and tooling are connected can be improved, making it easier to accurately bond the required bonding points.

[0033] Example 5: Reference Figure 1 The semi-circular tube 1 has multiple friction strips on its side wall along its length.

[0034] The principles and beneficial effects of the above scheme are as follows:

[0035] Because the semi-circular tube 1 has multiple friction strips on its side wall along its length, it is convenient for the operator to squeeze the friction strips after the resin has cured, and then remove the two horizontal plates 2 from the fixture.

[0036] Example 6: Reference Figure 1 The semi-circular tube 1 has multiple guide strips on its inner wall along its length.

[0037] The principles and beneficial effects of the above scheme are as follows:

[0038] The guide strip improves the efficiency of resin flow, avoids premature curing of some resin within the structure, increases the uniformity of resin curing, and further enhances the adhesion to the fan blades. As the resin cures, its volume shrinks, so the cured resin is not damaged during the removal of the structure from the tooling, and the difficulty of removing the structure is also reduced.

[0039] Example 7: Reference Figure 1 The arc length of the semicircular tube 1 is greater than the width of the horizontal plate 2.

[0040] The inner diameter of the semi-circular tube 1 is greater than the width of the horizontal plate 2.

[0041] The principles and beneficial effects of the above scheme are as follows:

[0042] The arc length and inner diameter of the semicircular tube 1 are both greater than the width of the horizontal plate 2. Therefore, it can not only reduce the manufacturing difficulty of the structure, but also allow for bonding at wider joints, which greatly improves the practicality of the structure.

[0043] Example 8: Reference Figure 1 The bottom of the horizontal plate 2 is provided with multiple friction protrusions.

[0044] The top of the horizontal plate 2 is provided with multiple friction protrusions.

[0045] The principles and beneficial effects of the above scheme are as follows:

[0046] The bottom and top of the horizontal plate 2 are respectively provided with friction protrusions and friction protrusion II, which facilitates the increase of friction between the structure and the tooling after the horizontal plate 2 is inserted into the tooling. Therefore, the structure has excellent stability during the resin curing process and will not shift due to the flow of resin, thus ensuring the accuracy of the bonding.

[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An arch-bridge type diversion pipe, characterized in that, include: A semicircular tube (1) and a horizontal plate (2) are provided. The two sides of the semicircular tube (1) are connected to the ends of a horizontal plate (2). The two horizontal plates (2) are arranged on the same plane, and the semicircular tube (1) and the two horizontal plates (2) form an arch bridge.

2. The arch-bridge type diversion pipe according to claim 1, characterized in that, The bottom end of the semi-circular tube (1) is coplanar with the bottom of the horizontal plate (2).

3. The arch-bridge type diversion pipe according to claim 2, characterized in that, The length of the semicircular tube (1) is equal to the length of the horizontal plate (2).

4. The arch-bridge type diversion pipe according to claim 3, characterized in that, The two horizontal plates (2) have the same width.

5. The arch-bridge type diversion pipe according to claim 3, characterized in that, The semi-circular tube (1) has multiple friction strips on its side wall along its length.

6. The arch-bridge type diversion pipe according to claim 5, characterized in that, The semi-circular tube (1) has multiple guide strips on its inner wall along its length.

7. The arch-bridge type diversion pipe according to claim 6, characterized in that, The arc length of the semicircular tube (1) is greater than the width of the horizontal plate (2).

8. The arch-bridge type diversion pipe according to claim 7, characterized in that, The inner diameter of the semi-circular tube (1) is greater than the width of the horizontal plate (2).

9. The arch-bridge type diversion pipe according to claim 8, characterized in that, The bottom of the horizontal plate (2) is provided with multiple friction protrusions.

10. The arch-bridge type diversion pipe according to claim 9, characterized in that, The top of the horizontal plate (2) is provided with multiple friction protrusions.

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