CN215338806U - Connection structure of wind tunnel test support rod - Google Patents
Connection structure of wind tunnel test support rod Download PDFInfo
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- CN215338806U CN215338806U CN202121551448.4U CN202121551448U CN215338806U CN 215338806 U CN215338806 U CN 215338806U CN 202121551448 U CN202121551448 U CN 202121551448U CN 215338806 U CN215338806 U CN 215338806U
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- tensioning
- joint
- wind tunnel
- tunnel test
- support rod
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Abstract
The utility model discloses a connecting structure of a wind tunnel test support rod, which comprises a support rod, wherein the end part of the support rod is provided with an outer conical surface, the outer conical surface is matched with an inner conical surface in a joint, the support rod is provided with a tensioning disc, the tensioning disc is provided with a tensioning hole, a bolt is arranged in the tensioning hole, and the bolt is connected with a screw hole in the joint. The tensioning between the tensioning disc and the joint is realized through the bolt, and the support rod is fixed on the joint through the expansion and the attachment of the inner conical surface and the outer conical surface. The utility model has the beneficial effects that: the structure is simple, and the joint and the support rod can be tightly fixed; the jacking hole is arranged, jacking loosening is conveniently realized by utilizing a jacking screw, and disassembly is convenient; the inner and outer conical surfaces of the supporting rod and the joint are not damaged, and the connection and fitting precision is ensured; a certain gap exists between the tension disc and the joint, so that the support rod and the joint are convenient to observe and confirm to be completely fixed in place.
Description
Technical Field
The utility model relates to the technical field of wind tunnel test devices, in particular to a connecting structure of a wind tunnel test strut.
Background
Wind tunnel, wind tunnel laboratory, is a kind of pipe-shaped experimental equipment which is used to generate and control airflow in artificial mode, to simulate the flowing condition of air around aircraft or entity, to measure the effect of airflow on entity and to observe physical phenomena, and is one of the most common and effective tools for aerodynamic experiment.
The joint in the traditional wind tunnel is fixed with the strut in a wedge tensioning mode, the strut outer conical surface is damaged due to the fact that a wedge steel structure is deformed when the joint and the strut are frequently used, the risk that the strut cannot be tensioned completely is generated, and the wedge is utilized to connect and operate the strut in a complex mode, and more inconvenience is caused in dismounting.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: the utility model provides a wind-tunnel test support rod connection structure, solved current joint and the complicated, the inconvenient problem of dismouting of support rod connection structure.
The purpose of the utility model is realized by the following technical scheme:
a connecting structure of a wind tunnel test support rod comprises a support rod, wherein an outer conical surface is arranged at the end part of the support rod and is matched with an inner conical surface in a joint, a tensioning disc is arranged on the support rod, a tensioning hole is formed in the tensioning disc, a bolt is arranged in the tensioning hole, and the bolt is connected with a screw hole in the joint. The tensioning between the tensioning disc and the joint is realized through the bolt, and the support rod is fixed on the joint through the expansion and the attachment of the inner conical surface and the outer conical surface.
Further, branch on be equipped with the external screw thread, take-up reel on be equipped with external screw thread complex internal thread, realize through the screw thread that take-up reel can dismantle on branch fixedly, dismouting convenient connection, manual operation are nimble.
Furthermore, the joint is cylindrical.
Furthermore, the joints and the support rods are internally provided with hollow structures which are communicated along the axial direction and used for the penetration of the lines.
Furthermore, branch on set up intercommunication external conical surface and hollow structure's keyway, realize fixing between the two through the keyway on branch and the joint, further improve the joint strength of circumference between the two, guarantee stable in structure.
Furthermore, the key groove is of a convex cross section.
Furthermore, the supporting rod is cylindrical, a plane structure is arranged on the side face of the supporting rod, and the plane structure is used for measuring the state of the supporting rod.
Furthermore, the tensioning disc is in a circular truncated cone shape.
Furthermore, the tensioning holes comprise four tensioning holes which are uniformly arranged along the circumferential direction, so that uniform stress between the tensioning disc and the joint is ensured.
Furthermore, the tensioning disc is provided with a top loose hole, a top screw is screwed into the top loose hole, the top screw props the tensioning disc away from the joint, and the tensioning disc and the support rod are convenient to disassemble.
Furthermore, the top loose holes comprise four top loose holes which are uniformly arranged along the circumferential direction, and the tensioning holes and the top loose holes are alternately arranged.
The utility model has the beneficial effects that: the structure is simple, and the joint and the support rod can be tightly fixed; the jacking hole is arranged, jacking loosening is conveniently realized by utilizing a jacking screw, and disassembly is convenient; the inner and outer conical surfaces of the supporting rod and the joint are not damaged, and the connection and fitting precision is ensured.
The main scheme and the further selection schemes can be freely combined to form a plurality of schemes which are all adopted and claimed by the utility model; in the present invention, the selection (each non-conflicting selection) and the other selections can be freely combined. The skilled person in the art can understand that there are many combinations, which are all the technical solutions to be protected by the present invention, according to the prior art and the common general knowledge after understanding the scheme of the present invention, and the technical solutions are not exhaustive herein.
Drawings
Fig. 1 is a front view of the structure of the present invention.
Figure 2 is a side view of the structure of the present invention.
Fig. 3 is an exploded view of the structure of the present invention.
In the figure: 1-joint, 2-support rod, 3-tension disc, 4-bolt, 5-internal conical surface, 6-external conical surface, 7-internal thread, 8-external thread, 9-tension hole, 10-top loose hole, 11-screw hole, 12-hollow structure and 13-key groove.
Detailed Description
The utility model will be further described with reference to specific embodiments and the accompanying drawings.
Referring to fig. 1 to 3, the connecting structure of the wind tunnel test support rod comprises a joint 1, a support rod 2, a tension disc 3 and a bolt 4.
The joint 1 is cylindrical, and an inner conical surface 5 and a hollow structure 12 are arranged inside the joint. The inner conical surface is used for being attached and tensioned with the outer conical surface to realize expansion and fixation. The side of the joint is provided with four screw holes 11 which are uniformly arranged along the circumferential direction, the screw holes are used for connecting and fixing bolts, the joint and the tensioning disc are connected and tensioned, and the laminating connection effect of the conical surface is ensured.
The supporting rod 2 is cylindrical, an outer conical surface 6 is arranged at the end part of the supporting rod 2, and the outer conical surface 6 is matched with an inner conical surface 5 in the joint 1 to realize expansion and fixation. The strut 2 is provided with an external thread 8 for connection with an internal thread 7 on the tightening disk, so that the tightening disk can be detachably mounted on the strut.
The joints 1 and the support rods 2 are internally provided with hollow structures 12 which are through along the axial direction and used for meeting the wiring requirements of a measuring line. The supporting rod 2 is provided with a key groove 13 communicating the outer conical surface 6 with the hollow structure 12, the key groove 13 is of a convex cross section, and a clamping key is arranged in the key groove and used for clamping and fixing the supporting rod and the joint in the circumferential direction. The side of the supporting rod 2 is provided with a plane structure for measuring the state of the supporting rod.
The tensioning disc 3 is in a circular truncated cone shape, an internal thread 7 matched with the external thread 8 is arranged in the tensioning disc 3, and the tensioning disc is fixed on the support rod through the thread.
The tensioning disc 3 is provided with four tensioning holes 9 which are uniformly arranged along the circumferential direction, the tensioning holes 9 are internally provided with bolts 4, and the bolts 4 are connected with screw holes 11 on the joint 1. The tensioning disc and the joint are fixedly connected through the bolts, tensioning between the tensioning disc and the joint is achieved, and expansion and fixation are achieved through the inclined plane shoring matching of the inner conical surface and the outer conical surface.
The tensioning disc 3 is provided with four top loose holes 10 which are uniformly arranged along the circumferential direction, and the tensioning holes 9 and the top loose holes 10 are alternately arranged. The top loose hole is used for installing a jackscrew and is used for jacking the support rod and the tensioning disc from the joint, so that the dismounting is convenient.
The foregoing basic embodiments of the utility model and their various further alternatives can be freely combined to form multiple embodiments, all of which are contemplated and claimed herein. In the scheme of the utility model, each selection example can be combined with any other basic example and selection example at will.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a connection structure of wind tunnel test branch, includes branch (2), its characterized in that: the end of the supporting rod (2) is provided with an outer conical surface (6), the outer conical surface (6) is matched with an inner conical surface (5) in the joint (1), the supporting rod (2) is provided with a tensioning disc (3), the tensioning disc (3) is provided with a tensioning hole (9), a bolt (4) is arranged in the tensioning hole (9), and the bolt (4) is connected with a screw hole (11) in the joint (1).
2. The connection structure of a wind tunnel test strut according to claim 1, characterized in that: the supporting rod (2) is provided with an external thread (8), and the tensioning disc (3) is provided with an internal thread (7) matched with the external thread (8).
3. The connection structure of a wind tunnel test strut according to claim 1 or 2, characterized in that: the joint (1) and the support rod (2) are internally provided with a hollow structure (12) which is through along the axial direction.
4. The connection structure of a wind tunnel test strut according to claim 3, characterized in that: the supporting rod (2) is provided with a key groove (13) for communicating the outer conical surface (6) with the hollow structure (12).
5. The connection structure of the wind tunnel test strut according to claim 4, wherein: the key groove (13) is of a convex cross section.
6. The connection structure of a wind tunnel test strut according to claim 1, characterized in that: the supporting rod (2) is cylindrical, and a plane structure is arranged on the side surface of the supporting rod (2).
7. The connection structure of a wind tunnel test strut according to claim 1 or 6, wherein: the tensioning disc (3) is in a circular truncated cone shape.
8. The connection structure of a wind tunnel test strut according to claim 1, characterized in that: the tensioning holes (9) comprise four tensioning holes which are uniformly arranged along the circumferential direction.
9. The connection structure of a wind tunnel test strut according to claim 1 or 8, characterized in that: the tensioning disc (3) is provided with a top loose hole (10).
10. The connection structure of a wind tunnel test strut according to claim 9, characterized in that: the top loose holes (10) comprise four top loose holes which are uniformly arranged along the circumferential direction, and the tensioning holes (9) and the top loose holes (10) are alternately arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121551448.4U CN215338806U (en) | 2021-07-08 | 2021-07-08 | Connection structure of wind tunnel test support rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121551448.4U CN215338806U (en) | 2021-07-08 | 2021-07-08 | Connection structure of wind tunnel test support rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215338806U true CN215338806U (en) | 2021-12-28 |
Family
ID=79565840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121551448.4U Active CN215338806U (en) | 2021-07-08 | 2021-07-08 | Connection structure of wind tunnel test support rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215338806U (en) |
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2021
- 2021-07-08 CN CN202121551448.4U patent/CN215338806U/en active Active
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