CN111644992A - Clamp for aviation equipment sample in hanging flight test - Google Patents

Abstract

The present invention relates to a clamp. The fixture includes a gantry, a main body, and a connecting frame. The gantry frame includes an upper cover and two oppositely arranged supports. The two supports are respectively fixedly connected with different ends of the upper cover. The main body is located between the two supports, and the main body is provided with a hanging ring for hanging a sample of aviation equipment. One end of the connecting frame is fixedly connected with the upper cover, and the other end is connected with the main body. Since the connecting frame is located between the upper cover and the main body, the space for installing the test equipment for the flying test is freed up. The upper cover and the support form a gantry. Since the aviation equipment samples can be suspended on the main body, the test space is freed below the main body. The process of assembling the hanger, the main body, the connecting frame and the upper cover and the process of suspending the aviation equipment samples can be carried out outside the test chamber, and the assembly space is large, which can ensure the safety of the aviation equipment samples, and the assembly is very convenient and fast, thereby shortening the aviation The entry time of the equipment sample.

Description

Fixtures for samples of aviation equipment in the hang-fly test

technical field

The present invention relates to the technical field of aviation hang-up test, in particular to a fixture used for aviation equipment samples in hang-fly test.

Background technique

With the advancement of science and technology and changes in the international situation, the military's combat concept and combat mode are currently in a period of continuous transformation. Aviation weapons and equipment are developing towards informatization, automation, and intelligence, and their environmental adaptability requirements are getting higher and higher. The flight test of aviation equipment that integrates temperature, humidity and vibration environment stress has become an important test item in the current equipment finalization assessment. According to the implementation requirements of the flight test of aviation equipment, it is imminent to design a fast clamping tool.

The installation process of the traditional flying test fixture is to build a frame with a frame welded by channel steel in the test cabin, and then connect these frames to the test equipment inside the test cabin, and then use steel plate or channel steel to connect the frame. These frames are connected to each other, and finally the aviation equipment samples are sent into the test chamber and connected to the hangers on the frame. When using the traditional flying test fixture to install the sample, it is carried out in the test chamber. Due to the small space in the test chamber, it is very inconvenient to install the aviation equipment samples.

SUMMARY OF THE INVENTION

Based on this, it is necessary to provide a fixture that is convenient for installing aviation equipment samples in order to solve the problem that it is very inconvenient to install aviation equipment samples using the traditional hang-flying test fixture.

The embodiment of the present application provides a fixture for an aviation equipment sample in a flying test, including:

The gantry includes an upper cover and two oppositely arranged supports, and the two supports are respectively fixedly connected with different ends of the upper cover;

a main body, located between the two supports, the main body is provided with a hanger, and the hanger is used to hang a hanging ring for the aviation equipment sample; and

One end of the connecting frame is fixedly connected with the upper cover, and the other end is connected with the main body.

In the above-mentioned fixture, since the connecting frame is located between the upper cover and the main body, the space for installing the test equipment used for the flying test is freed. The upper cover and the support form a gantry. Since the aviation equipment samples can be suspended on the main body, the test space is freed below the main body. The process of assembling the hanger, the main body, the connecting frame and the upper cover and the process of suspending the aviation equipment samples can be carried out outside the test chamber, and the assembly space is large, so as to ensure the safety of the aviation equipment samples, and the assembly is very convenient and fast, thereby shortening the aviation time. The entry time of the equipment sample.

In one embodiment, the fixture further includes:

a reinforcement part, the reinforcement part is fixedly connected with the upper cover, and is located on the side of the upper cover facing away from the support; and

A connecting part, one end of the connecting part is fixedly connected with the reinforcing part, and the other end is fixedly connected with the main body.

In one embodiment, the reinforcing portion is channel steel.

In one embodiment, the number of the hangings is multiple.

In one embodiment, the clamp further includes a limit part, the limit part is detachably and fixedly connected to the main body, the limit part is located on one side of the hanging, and is used to prevent the The lifting ring of the aviation equipment sample fell off.

In one embodiment, both ends of the pressing portion are respectively fixedly connected to the main body by means of screw connection.

In one embodiment, the clamp further includes a pressing part, the pressing part is located between the limiting part and the hanging, and is used for pressing the hanging ring of the aviation equipment sample on the On the main body, the position of the pressing portion is adjustable along the direction perpendicular to the arrangement direction of the hanging.

In one embodiment, the clamp further comprises a screw rod and a nut matched with the screw rod, and the pressing portion is fixedly connected to the main body through the screw rod and the nut;

The main body is provided with a through slot extending perpendicular to the arrangement direction of the hanging, the screw rod passes through the through slot and can be adjusted in position along the extending direction of the through slot, and the nut is located on the main body the side facing away from the pressing part.

In one embodiment, the connection frame is fixedly connected to the upper cover by means of screw connection, and the connection frame is connected to the main body by means of screw connection.

In one embodiment, the material used for the gantry is 7075 aviation aluminum material.

In one embodiment, the main body is channel steel, and the material used for the main body is carbon-structured steel or low-gold steel billet with a carbon content not exceeding 0.25%.

In one embodiment, the connection frame is formed by welding a plurality of channel steels, and the material used for the connection frame is carbon-bonded steel or low-gold steel billet with a carbon content not exceeding 0.25%.

Description of drawings

1 is a schematic structural diagram of a clamp according to an embodiment;

Fig. 2 is the schematic diagram of the gantry of the fixture in Fig. 1;

Fig. 3 is the schematic diagram of the connection frame of the clamp in Fig. 1;

FIG. 4 is a schematic structural diagram of the main body of the clamp in FIG. 1;

FIG. 5 is a top view of the body of FIG. 4 .

Detailed ways

In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated device or Elements must have a particular orientation, be constructed and operate in a particular orientation and are therefore not to be construed as limitations of the invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary touch. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or an intervening element may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

Referring to FIG. 1 , an embodiment of the present application provides a fixture 100 for an aviation equipment sample (not shown) in a flying test. The clamp 100 includes: a gantry, a main body 120 and a connecting frame 130 .

Please refer to FIG. 2 , the gantry frame includes an upper cover 111 and two oppositely disposed supports 112 . The two supports 112 are respectively fixedly connected with different ends of the upper cover 111 .

Specifically, the material used for the gantry is 7075 aviation aluminum integral casting, which has good mechanical properties and strength, which not only ensures the strength of the clamp 100, but also ensures the vibration transmission of the clamp 100. Compared with the steel used for the support frame in the prior art, the gantry is made of aviation aluminum, so that the weight of the fixture 100 is reduced, thereby reducing the thrust requirement for the vibration equipment in the flying test.

The body 120 is located between the two supports 112 . The main body 120 is provided with a hanging. Hanging rings (not shown) for hanging samples of aviation equipment.

Specifically, the aviation equipment samples were equipped with lifting rings. When suspending the aviation equipment sample, the lifting ring of the aviation equipment sample can be pushed to the hanging place along the main body 120, and then the lifting ring is hung on the hanging hanging to quickly perform clamping, which saves the tedious work of hanging and correcting.

In this embodiment, the main body 120 is made of carbon steel or low-gold steel billet with a carbon content not exceeding 0.25%, which can reduce the weight of the clamp 100 and ensure the strength and vibration transmission of the clamp 100 .

Referring to FIG. 3 , one end of the connecting frame 130 is fixedly connected to the upper cover 111 , and the other end is connected to the main body 120 , so that the main body 120 is suspended from the upper cover 111 , and the aviation equipment sample is then suspended.

Specifically, one end of the connection frame 130 is fixedly connected to the upper cover 111 by means of screw connection. The other end of the connection frame 130 is connected with the main body 120 by means of screw connection. Since the connection frame 130 is located between the upper cover 111 and the main body 120 , a space for installing the test equipment used for the flying test is left between the upper cover 111 and the main body 120 , which facilitates the installation of the test equipment. At the same time, since the aviation equipment sample can be suspended on the main body 120, a test space is left under the main body 120, and the interference to the test cable during the test is reduced.

The connection frame 130 is formed by welding a plurality of channel steels. The material used for the connection frame 130 is carbon-structured steel or low-gold steel billet with a carbon content not exceeding 0.25%, which can reduce the weight of the clamp 100 and ensure the strength and vibration transmission of the clamp 100 .

When the fixture 100 is used for the installation of the aviation equipment samples in the flying test, the support 112 is first connected with the test equipment in the test chamber, and the hanger, the main body 120, the connecting frame 130 and the upper cover 111 are assembled outside the test chamber into one Integrate and hang the aviation equipment sample on the main body 120, and then hoist the assembled whole and the aviation equipment sample suspended on the main body 120 into the test cabin, and finally fix the support 112 and the upper cover 111 in the test cabin. connect.

In the above-mentioned fixture 100 , since the connecting frame 130 is located between the upper cover 111 and the main body 120 , the space for installing the test equipment for the flying test is freed. The upper cover 111 and the support 112 form a gantry. Since the aviation equipment sample can be suspended on the main body 120 , the test space is freed below the main body 120 . The process of assembling the hanger, the main body 120, the connecting frame 130 and the upper cover 111, and the process of suspending the aviation equipment samples can be carried out outside the test chamber, and the assembly space is large, which can ensure the safety of the aviation equipment samples, and the assembly is very convenient and fast , thereby shortening the entry time of aviation equipment samples.

Referring to FIG. 1 , in one embodiment, the clamp 100 further includes a reinforcing portion 140 and a connecting portion 150 . The reinforcement portion 140 is fixedly connected to the upper cover 111 and is located on the side of the upper cover 111 facing away from the support 112 . One end of the connecting portion 150 is fixedly connected to the reinforcing portion 140 , and the other end is fixedly connected to the main body 120 .

Specifically, the reinforcement portion 140 is channel steel. The connecting portion 150 is a connecting rod. The reinforcing part 140 is connected with the main body 120 through the connecting part 150, so that the main body 120 is relatively stable during the test process, which ensures the safety of the aviation equipment sample and the transmission of vibration for a long time.

In one embodiment, the number of the reinforcing parts 140 is at least two, and the connecting parts 150 correspond to the reinforcing parts 140 one-to-one. At least two reinforcing parts 140 are connected to the main body 120 through the connecting part 150, which ensures the coordination and consistency between the aviation equipment sample and the vibration.

In one embodiment, the number of hangings is multiple, such as two, three, four and so on.

In this embodiment, the number of suspensions is three, and three different aviation equipment samples can be respectively suspended. Please refer to FIG. 4 and FIG. 5 , the three hangings are the first hanging 161 , the second hanging 162 and the third hanging 163 respectively. The hanging can be fixed with the main body 120 by means of screw connection, which is convenient for replacement and maintenance.

The material used for the hanging can be a special chromium alloy (30CrMnSiA), which has ultra-high mechanical strength and performance after heat treatment, which strengthens the strength of the fixture 100 and ensures the safety of the aviation equipment samples during the test.

In one embodiment, the clamp 100 further includes a limiting portion. The limiting portion is detachably and fixedly connected to the main body 120 . The limit part is located on one side of the hanging, which is used to prevent the lifting ring of the aviation equipment sample from falling off. The limit part corresponds to the hanging one by one.

Specifically, the limiting portion may be a stopper. Referring to FIG. 4 and FIG. 5 , in this embodiment, the number of the limiting portions is three, which are the first limiting portion 171 , the second limiting portion 172 and the third limiting portion 173 respectively. The three limiting parts correspond to the three hanging parts one-to-one respectively. The first limiting portion 171 is adjacent to the first hanging 161 to prevent the hanging ring hanging on the first hanging 161 from falling off. The second limiting portion 172 is adjacent to the second hanging 162 to prevent the hanging ring hanging on the second hanging 162 from falling off.

Each limiting portion and the main body 120 may be fixedly connected by means of screw connection. The lifting ring of the aviation equipment sample can be hung on the suspension first, and then the limiting portion is fixedly connected to the main body 120, so that the lifting ring of the aviation equipment sample can be prevented from falling off the suspension.

The material used for the limit part can be a special chromium alloy (30CrMnSiA), which has ultra-high mechanical strength and performance after heat treatment, and the position of the aviation equipment sample is stable, thus ensuring the accuracy of the test data.

Referring to FIG. 4 and FIG. 5 , in one embodiment, the clamp 100 further includes a pressing portion 180 . The pressing part 180 is located between the limiting part and the hanging, and is used for pressing the hanging ring of the aviation equipment sample on the main body 120 . The position of the pressing portion 180 is adjustable along the direction perpendicular to the arrangement direction of the hanging.

Specifically, the pressing portion 180 may be a pressing block. Both ends of the pressing portion 180 may be respectively connected to the main body 120 by means of screw connection. In this embodiment, the pressing portion 180 is located between the third limiting portion 173 and the third hanging portion 163 . After the suspension ring of the aviation equipment sample is suspended on the third suspension 163 , the suspension ring of the aviation equipment sample is pressed against the main body 120 by the pressing part 180 , so as to prevent the suspension ring of the aviation equipment sample from falling off the third suspension 163 .

In this embodiment, the main body 120 is channel steel. The three hangers are arranged along the length direction of the main body 120 . Different aviation equipment samples have different specifications. When the lifting rings of different aviation equipment samples are hung on the third hanging 163, the pressing part 180 needs to be pressed. The position of the pressing portion 180 along the width direction of the main body 120 is adjustable, so that the pressing portion 180 can be adapted to lifting rings for different aviation equipment samples by adjusting the position of the pressing portion 180 along the width direction of the main body 120 .

Referring to FIG. 4 and FIG. 5 , in one embodiment, the clamp 100 further includes a screw rod 191 and a nut matched with the screw rod 191 . The pressing part 180 is fixedly connected with the main body 120 through the screw rod 191 and the nut. The main body 120 is provided with a through groove (not shown) extending perpendicular to the arrangement direction of the hanging. The screw rod 191 passes through the through groove and can be adjusted in position along the extending direction of the through groove, and the nut is located on the side of the main body 120 facing away from the pressing part 180 .

Specifically, in this embodiment, the main body 120 is a channel steel, and the channel steel has a groove 101 extending along its own length direction. The through groove is disposed on the bottom wall of the groove 101 of the main body 120 . The screw rod 191 passes through the pressing part 180 and protrudes to the outside of the main body 120 through the through groove. The nut is located on the side of the main body 120 facing away from the pressing portion 180 . The nut and the screw rod 191 are tightened, so that the pressing part 180 presses the lifting ring of the aviation equipment sample against the bottom wall of the groove 101 of the main body 120 .

By loosening the nut, the screw rod 191 can be moved along the extending direction of the through slot, so that the position of the screw rod 191 can be adjusted. Since the screw rod 191 protrudes to the outside of the main body 120 through the through groove, the nut is located on the side of the main body 120 facing away from the pressing part 180 , so that the screw rod 191 can be moved by moving the protruding part of the screw rod 191 to the outside of the main body 120 , it is convenient to adjust the position of the screw 191 .

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (12)

1. A anchor clamps that is arranged in hanging to fly experimental aviation equipment sample, its characterized in that includes:

the portal frame comprises an upper cover and two oppositely arranged supports, and the two supports are fixedly connected with different ends of the upper cover respectively;

the main body is positioned between the two supports, a hanger is arranged on the main body, and the hanger is used for hanging a hanging ring of the aviation equipment sample; and

and one end of the connecting frame is fixedly connected with the upper cover, and the other end of the connecting frame is connected with the main body.

2. The clamp of claim 1, further comprising:

the reinforcing part is fixedly connected with the upper cover and is positioned on one side of the upper cover, which is back to the support; and

one end of the connecting part is fixedly connected with the reinforcing part, and the other end of the connecting part is fixedly connected with the main body.

3. The clip of claim 2, wherein the reinforcement is a channel.

4. The clamp of claim 1, wherein the number of hangers is plural.

5. The clamp according to claim 1, further comprising a limiting part, wherein the limiting part is detachably and fixedly connected with the main body, and the limiting part is located on one side of the hanger and used for preventing the flying ring of the aviation equipment sample from falling off.

6. The clamp according to claim 5, further comprising a pressing portion, wherein the pressing portion is located between the limiting portion and the hanger and used for enabling the hanging ring of the aviation equipment sample to be pressed on the main body, and the position of the pressing portion along the direction perpendicular to the arrangement direction of the hanger is adjustable.

7. The clamp of claim 6, wherein the two ends of the compressing portion are fixedly connected with the main body by means of screw connection respectively.

8. The clamp of claim 6, further comprising a screw and a nut engaged with the screw, wherein the compression portion is fixedly connected to the body via the screw and the nut;

the main body is provided with a through groove extending along the direction perpendicular to the hanging direction, the screw rod penetrates through the through groove and can adjust the position along the extending direction of the through groove, and the nut is positioned on one side of the main body, back to the pressing part.

9. The clamp of claim 1, wherein the connection frame is fixedly connected to the upper cover by means of a threaded connection, and the connection frame is connected to the body by means of a threaded connection.

10. The jig of claim 1, wherein the gantry is made of 7075 gauge aircraft aluminum.

11. The clamp of claim 1, wherein the body is a channel steel and the material of the body is a carbon steel or a low-alloy steel billet having a carbon content of no more than 0.25%.

12. The clamp of claim 1, wherein the connecting frame is formed by welding a plurality of steel channels, and the connecting frame is made of carbon steel or low-alloy steel billet with carbon content not more than 0.25%.

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