Folding heating device

Abstract

The utility model relates to the technical field of wind power blades, in particular to a folding heating device which comprises a lifting support, a heating device and a heating device. The fixed fixture is fixedly connected with the top of the lifting bracket, and the length of the fixed fixture is matched with the length of the jacking discontinuous part of the main beam; the folding frames are arranged on the two sides of the fixed frame in the width direction, and the two folding frames can be folded on the fixed frame or unfolded on the two sides of the fixed frame; and the heating blanket is attached to the surfaces of the fixed fixture and the folding fixture and is used for heating the resin filling area of the main beam. According to the utility model, the folding frames with two folded sides are unfolded, the lifting bracket is jacked to be attached to the molded surface of the main beam, and the discontinuous main beam area of the jacking device is heated through the heating blanket, so that the heating of the whole area of the main beam is realized, and the structural strength of the blade is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine blades, in particular to a folding heating device. Background Art

[0002] During the processing of modular blades, multiple blade shell support devices are required, and jacking devices for lifting the main beam are distributed between the blade support devices. The main beam component is lifted into the beam groove of the blade shell for installation through the jacking device, and then the main beam is vacuum infused. In order to ensure the performance of the main beam after infusion, the area outside the main beam needs to be heated as a whole so that the injected resin and other adhesives can be cured.

[0003] In the related art, a heating blanket is often used that is directly attached to the upper part of the jacking mechanism, and as the jacking mechanism is lifted, it is attached to the heating area of ​​the blade main beam. However, due to the presence of a blade shell support device between two adjacent jacking devices, that is, at the discontinuity of the jacking devices, effective heating measures cannot be provided at present, resulting in the inability to achieve heating and curing in this area. Utility Model Content

[0004] In view of at least one of the above technical problems, the utility model provides a folding heating device to provide effective heating at the discontinuity of the lifting device of the modular blade.

[0005] According to a first aspect of the utility model, a folding heating device is provided, comprising:

[0006] A lifting bracket, wherein the height of the lifting bracket can be adjusted in the vertical direction;

[0007] A fixed frame is fixedly connected to the top of the lifting bracket, and the length of the fixed frame is adapted to the length of the main beam lifting discontinuity;

[0008] Folding profiles are arranged on both sides of the fixed profile in the width direction, and the two folding profiles can be folded on the fixed profile or unfolded on both sides of the fixed profile;

[0009] A heating blanket is attached to the surface of the fixed jig and the folding jig and is used for heating the resin-injected area of ​​the main beam.

[0010] Furthermore, the lifting bracket includes a fixed tube, a telescopic column sleeved in the fixed tube, and a limiting component arranged on the fixed tube for limiting the position of the telescopic column.

[0011] Furthermore, the limiting assembly includes a nut seat fixed on the fixing tube, a threaded hole of the nut seat penetrates the outer wall of the fixing tube, and also includes a stud screwed on the nut seat.

[0012] Furthermore, the lifting bracket also has a driving member, one end of which is fixed to the fixing tube, and the other end of which is connected to the top of the telescopic column.

[0013] Furthermore, the driving member is a hydraulic driving rod.

[0014] Furthermore, the fixed frame has hinges hinged to the folding frame on both sides, and first abutment ears extending in the length direction, and the folding frame has second abutment ears arranged corresponding to the first abutment ears.

[0015] Furthermore, the first abutting ear and the second abutting ear both have corresponding fixing holes.

[0016] Furthermore, the fixed frame and the folding frame each include a plurality of support plates arranged in parallel and at intervals and support rods connected between the support plates.

[0017] Furthermore, the heating blanket is divided into three pieces, which are respectively attached to the upper surfaces of the fixed frame and the two folding frames.

[0018] Furthermore, when the two folding frames are in the unfolded state, they form a curved surface structure with the upper surface of the fixed frame that fits the bottom of the blade shell.

[0019] The beneficial effects of the utility model are as follows: the utility model, through the setting of the folding frame and the cooperation of the lifting bracket, can lower the lifting bracket and fold the folding frame when not in use, thereby not affecting the operation of the blades; when the beam area needs to be heated, the folding frames folded on both sides are opened, and the lifting bracket is jacked up to fit the main beam surface, and the intermittent main beam area of ​​the jacking device is heated by the heating blanket, thereby realizing the heating of the entire area of ​​the main beam and improving the structural strength of the blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a side view of the folding heating device in the embodiment of the utility model (folded form);

[0022] Figure 2 This is a side view of the folding heating device in the embodiment of the utility model (in the unfolded state);

[0023] Figure 3 This is a schematic diagram of the structure of the folding heating device in the embodiment of the utility model when folded;

[0024] Figure 4 This is a schematic diagram of the structure of the folding heating device in the embodiment of the utility model when it is unfolded;

[0025] Figure 5 In the embodiment of the utility model Figure 3 Schematic diagram of the local enlarged structure at A in the figure. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] like Figures 1 to 5 The folding and heating device shown includes a lifting bracket 1, and the height of the lifting bracket 1 can be adjusted in the vertical direction; in some embodiments of the present utility model, the lifting bracket 1 has a variety of structural forms, such as a hydraulic cylinder, or other simpler structural forms; a fixed frame 2, which is fixedly connected to the top of the lifting bracket 1, and the length of the fixed frame 2 is adapted to the length of the main beam lifting discontinuity; a folding frame 3, which is arranged on both sides of the fixed frame 2 in the width direction, and the two folding frames 3 can be folded on the fixed frame 2 or unfolded on both sides of the fixed frame 2; a heating blanket 4, which is attached to the surface of the fixed frame 2 and the folding frame 3, is used to heat the resin infusion area of ​​the main beam. In the embodiment of the present utility model, when the folding frame 3 is unfolded, the width is slightly larger than the width of the main beam, and as shown Figure 2As shown in FIG, the two folding frames 3 in the unfolded state form an arc surface structure with the upper surface of the fixed frame 2 that fits the bottom of the blade shell.

[0030] In the above embodiment, by setting the folding frame 3 and cooperating with the lifting bracket 1, the lifting bracket 1 can be lowered and the folding frame 3 can be folded up when not in use, thereby not affecting the operation of the blade; when the beam area needs to be heated, the folding frame 3 folded on both sides is opened, and the lifting bracket 1 is lifted to fit the main beam surface, and the intermittent main beam area of ​​the lifting device is heated by the heating blanket 4, thereby achieving heating of the entire area of ​​the main beam and improving the structural strength of the blade.

[0031] Regarding the specific structure of the lifting bracket 1, in some embodiments of the present utility model, specifically as follows Figure 2 As shown in , the lifting bracket 1 includes a fixed cylinder 11, a telescopic column 12 sleeved in the fixed cylinder 11, and a limit assembly 13 arranged on the fixed cylinder 11 for limiting the position of the telescopic column 12. It should be pointed out here that the limit assembly 13 has a variety of structural forms, which can be abutted by bolts, or can be a wedge block corresponding to the groove on the surface of the telescopic column 12 by a spring abutment; in some embodiments of the utility model, the limit assembly 13 includes a nut seat fixed on the fixed cylinder 11, the threaded hole of the nut seat penetrates the outer wall of the fixed cylinder 11, and also includes a stud screwed on the nut seat. In this way, when the telescopic column 12 is extended to the set position, the positioning of the telescopic column 12 can be achieved by tightening the bolt so that the end of the bolt abuts against the outer wall of the telescopic rod.

[0032] In some embodiments of the present invention, the lifting bracket 1 further has a driving member 14, one end of which is fixed to the fixing cylinder 11, and the other end is connected to the top of the telescopic column 12. The arrangement of the driving member 14 can improve the convenience of operation and save effort when lifting the telescopic column 12. The driving member 14 has a variety of structural forms. In some embodiments of the present invention, the driving member 14 is a hydraulic driving rod.

[0033] Please continue to refer to Figure 5 In some embodiments of the present invention, the fixed frame 2 has hinges 21 hinged to the folding frame 3 on both sides, and first abutting ears 22 extending in the length direction, and the folding frame 3 has second abutting ears 31 corresponding to the first abutting ears 22. In this way, when the folding frame 3 is unfolded, the first abutting ears 22 and the second abutting ears 31 are butted to maintain the unfolded form; in addition, in some embodiments of the present invention, the first abutting ears 22 and the second abutting ears 31 are both provided with corresponding fixing holes. Through such a configuration, after the folding frame 3 is unfolded, the first abutting ears 22 and the second abutting ears 31 can be fixed with bolts and nuts to further improve the stability of the unfolded form.

[0034] In some embodiments of the present invention, in order to reduce the weight of the frame, please continue to refer to Figure 5 The fixed frame 2 and the folding frame 3 each include a plurality of support plates 32 arranged in parallel at intervals and support rods 33 connected between the support plates 32. In addition, the heating blanket 4 is provided in three pieces, which are respectively attached to the upper surfaces of the fixed frame 2 and the two folding frames 3. The above structural arrangement not only reduces the overall weight, but also avoids damage to the heating blanket 4 during folding. The heating blanket 4 is a prior art, and its composition and heating principle will not be described in detail here.

[0035] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A folding heating device, characterized in that: include: A lifting bracket, wherein the height of the lifting bracket can be adjusted in the vertical direction; A fixed frame is fixedly connected to the top of the lifting bracket, and the length of the fixed frame is adapted to the length of the main beam lifting discontinuity; Folding profiles are arranged on both sides of the fixed profile in the width direction, and the two folding profiles can be folded on the fixed profile or unfolded on both sides of the fixed profile; A heating blanket is attached to the surface of the fixed jig and the folding jig and is used for heating the resin-injected area of ​​the main beam.

2. The folding heating device according to claim 1, characterized in that: The lifting bracket comprises a fixing tube, a telescopic column sleeved in the fixing tube, and a limiting component arranged on the fixing tube for limiting the position of the telescopic column.

3. The folding heating device according to claim 2, characterized in that: The limiting assembly includes a nut seat fixed on the fixing tube, a threaded hole of the nut seat penetrates the outer wall of the fixing tube, and also includes a stud screwed on the nut seat.

4. The folding heating device according to claim 2, characterized in that: The lifting bracket is also provided with a driving member, one end of which is fixed on the fixing tube, and the other end of which is connected to the top of the telescopic column.

5. The folding heating device according to claim 4, characterized in that: The driving member is a hydraulic driving rod.

6. The folding heating device according to claim 1, characterized in that: The fixed frame has hinges hinged to the folding frame on both sides, and first abutment ears extending in the length direction, and the folding frame has second abutment ears corresponding to the first abutment ears.

7. The folding heating device according to claim 6, characterized in that: The first abutting ear and the second abutting ear are both provided with corresponding fixing holes.

8. The folding heating device according to claim 1, characterized in that: The fixed frame and the folding frame both include a plurality of support plates arranged in parallel at intervals and support rods connected between the support plates.

9. The folding heating device according to claim 2, characterized in that: The heating blanket is divided into three pieces and is respectively attached to the upper surfaces of the fixed frame and the two folding frames.

10. The folding heating device according to claim 9, characterized in that: When the two folding frames are in the unfolded state, they form an arc surface structure with the upper surface of the fixed frame that fits the bottom of the blade shell.

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