CN216247221U - Universal multi-connecting-rod type vertical tool for solid rocket engine - Google Patents

Abstract

The utility model provides a vertical frock of general multi-link formula solid rocket engine, includes preceding fishplate bar (1), back keysets (8), base (9), preceding fishplate bar (1), back keysets (8) and base (9) correspond the setting from the top down, preceding fishplate bar (1) and back keysets (8) are the ring structure, connect through flexible pull rod device along the circumferencial direction between preceding fishplate bar (1) and the back keysets (8), back keysets (8) be connected with base (9). The axial working state of the engine can be truly simulated, and the engine has the advantages of adjustable length size, adjustable radial size, axial centering and the like; the axial mechanical environment requirement born by the more real simulation engine in working can be met.

Description

A universal multi-link solid rocket motor vertical tooling

technical field

The utility model relates to a vertical tooling for an engine, in particular to a vertical tooling for a general multi-link solid rocket motor, which belongs to the technical field of vibration and impact tests.

Background technique

As the engine of rockets, missiles and sounding rockets, as well as the booster engine launched by spacecraft, solid rocket motors are subjected to various vibration and shock loads during the working process; therefore, solid rockets have high reliability and strong environmental adaptability. The key to engine quality characteristics. Ground vibration and shock tests are the main ways to assess the environmental adaptability of solid rocket motors. They can not only test whether the performance of the engine meets the requirements, but also expose the design defects of this type of engine, so as to provide guidance for its optimization and improvement; During the impact test, in order to more realistically simulate the mechanical environment that the engine is subjected to during operation, the axial test is generally carried out with vertical tooling.

At present, there are more and more types of aircraft using solid rocket motors, many of which require identification tests and batch sampling tests; while traditional vertical vibration and impact tooling needs to be repeatedly processed and tested according to different types of engines, resulting in processing problems. Serious waste of materials, waste of test sites, and a lot of industrial waste is generated. However, there is currently no universal vertical tooling that can solve these problems. Therefore, it is urgent to design a more reasonable and efficient vertical vibration and impact test tooling.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a universal multi-link solid rocket motor vertical tooling for the above problems existing in the prior art.

In order to achieve the above purpose, the technical solution of the present utility model is: a general multi-link solid rocket motor vertical tooling, comprising a front adapter plate, a rear adapter plate, and a base, the front adapter plate, The rear adapter plate and the base are arranged correspondingly from top to bottom, the front adapter plate and the rear adapter plate are both annular structures, and the front adapter plate and the rear adapter plate are connected in the circumferential direction through a telescopic pull rod device. The rear adapter plate is connected to the base.

The telescopic pull rod device includes a multi-section section pull rod, the adjacent section pull rods are connected by connecting screw sleeves, the section pull rod connected with the front adapter plate is the first section section pull rod, and the upper end of the first section section pull rod is inserted into the first section section pull rod. The segmented tie rod connected to the rear adapter plate is a tail segment tie rod, and the lower end of the tail segment tie rod is inserted on the rear adapter plate.

The front adapter plate is uniformly distributed with T-shaped grooves along the circumferential direction, and a T-shaped stopper is embedded in the T-shaped groove, and the front adapter plate and the T-shaped stopper are assembled into one by fixing bolts. .

Anti-debonding holes are arranged on the working surface of the T-shaped stopper, and PU polyurethane rubber pads are adhered to the anti-debonding holes.

Compared with the prior art, the beneficial effects of the present utility model are:

The utility model can satisfy the real axial working state of the simulated engine, and has the advantages of adjustable length size, adjustable radial size and axial alignment. It solves the problems of repeated machining of vertical test tooling, long test preparation period, low test efficiency, waste of raw materials and increased cost during axial vibration and impact tests of different types of engines; Bearing the axial mechanical environment requirements.

Description of drawings

FIG. 1 is a schematic structural diagram of the present utility model.

Figure 2 is a schematic diagram of the connection between the front adapter plate and the segmented pull rod in the present invention.

FIG. 3 is a schematic structural diagram of the front adapter plate in the present invention.

FIG. 4 is a schematic diagram of the structure of the segmented tie rod in the present invention.

Figure 5 is a schematic diagram of the structure of the connecting screw sleeve in the present invention.

Figure 6 is a front view of the T-shaped stop block in the present invention.

Fig. 7 is the left side view of the T-shaped stop block in the present invention.

FIG. 8 is a schematic view of the structure of the rear adapter plate in the present invention.

FIG. 9 is a top view of the base of the present invention.

Figure 10 is a side view of the base of the present invention.

Figure 11 is a bottom view of the base of the present invention.

Figure 12 is a schematic diagram of the application of the present invention.

In the figure: front adapter plate 1, T-shaped slot 2, T-shaped stop block 3, fixing bolt 4, PU polyurethane rubber pad 5, segment pull rod 6, connecting screw sleeve 7, rear adapter plate 8, base 9, Test stand 10 .

Detailed ways

The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

1 to 12, a general multi-link solid rocket motor vertical tooling is characterized in that it includes a front adapter plate 1, a rear adapter plate 8, and a base 9. The front adapter plate 1 , the rear adapter plate 8 and the base 9 are correspondingly arranged from top to bottom. The front adapter plate 1 and the rear adapter plate 8 are all annular structures. The plates 8 are connected along the circumferential direction through a telescopic pull rod device, the rear adapter plate 8 is connected with the base 9, and the base 9 is connected with the test bench 10 to conduct a vibration and impact test.

Referring to FIGS. 1 to 12 , the telescopic pull rod device includes a multi-section sectioned pull rod 6 , and the adjacent sectioned pull rods 6 are connected by connecting screw sleeves 7 ; It is inserted in the connecting screw sleeve 7; the segmented pull rod 6 is designed with a clamping surface, which is convenient for assembly. The length of the segmented tie rod 6 is a fixed value (500mm or 1000mm), and the connecting screw sleeve 7 is 30CrMnSi, which has the advantages of high strength and high toughness. The connection length of this tool can be adjusted by the length of the tool. The upper end of the segmented pull rod 6 connected with the front adapter plate 1 is inserted on the front adapter plate 1 , and the lower end of the segmented pull rod 6 connected with the rear adapter plate 8 is inserted on the rear adapter plate 8 .

1 to 12 , the front adapter plate 1 has T-shaped grooves 2 evenly distributed along the circumferential direction. The T-shaped stopper 3 slides left and right, and at the same time, the T-shaped stopper 3 is more firmly fixed on the front adapter plate 1; Bolt 4 adopts 12.9 grade high-strength bolts, and the diameter of use is adjusted by changing the position of T-shaped stopper 3. Further, an anti-debonding hole is provided on the working surface of the T-shaped stopper 3, and a PU polyurethane rubber pad 5 is bonded to the anti-debonding hole, and the PU on the working surface of the T-shaped stopper 3 is provided. The polyurethane rubber pad 5 is in direct contact with the engine, preventing damage to the surface coating of the engine, and at the same time ensuring sufficient hardness of the working surface and increasing friction.

1 to 12, during the test, the engine is placed between the front adapter plate 1 and the rear adapter plate 8, the position of the T-shaped stopper 3 is adjusted according to the diameter of the engine, and the T-shaped stopper is fixed by the fixing bolts 4. 3; According to the distance between the front and rear ends of the engine, select the number and specifications of the segmented pull rods 6, place the engine horizontally and connect the front adapter plate 1 and the rear adapter plate 8, and use the assembled telescopic pull rod device to connect the front adapter plate 1 and the rear adapter plate 8. The rear adapter plate 8 is tightened. Then the engine is turned upright, and the rear adapter plate 8 and the base 9 are butted and fixed. The multi-section segmented tie rod 6 and the connecting screw sleeve 7 are assembled to realize different length adjustment, which greatly reduces the test preparation time and test cost; solves the problem of different lengths of different types of engines, basically avoids the problem of multiple processing test tie rods, and can Repeated use many times. By adjusting the position of the T-shaped stopper 3, the engine within a certain diameter range can be tested with this tool. It is also convenient to install the adapter plate while preventing the axial eccentricity of the engine; it can reduce the processing requirements of the adapter plate to a certain extent, save the test cost, and at the same time meet the test requirements. Fix the installed engine and the tool on the test bench 10, drive the test bench 10 to start vibration, impact and other tests, repeat the above steps, and perform axial tests of different types of engines. In summary, this tooling, through variable stop diameter and multi-link design, solves the need for repeated processing of test tooling for different types of engines during axial vibration and impact tests, resulting in low test efficiency, waste of processing materials, and increased cost. It can carry out axial vibration and impact tests of engines with different lengths and different diameters within a certain range, so as to solve the problems of increased test costs and loss of raw materials due to different engine diameters and lengths, and achieve the purpose of improving test efficiency. , can be widely used in the field of engine vibration and impact test, greatly reducing the test preparation time, improving the tooling utilization rate and test ability.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be considered that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, some simple deductions or substitutions can be made, and the above structures should be regarded as belonging to the protection scope of the present invention.

Claims (4)

1. a general multi-link solid rocket motor vertical tooling, is characterized in that: comprise front adapter plate (1), rear adapter plate (8), base (9), described front adapter plate ( 1) The rear adapter plate (8) and the base (9) are arranged correspondingly from top to bottom, the front adapter plate (1) and the rear adapter plate (8) are both circular structures, and the front adapter plate (1) The rear adapter plate (8) is connected with the rear adapter plate (8) through a telescopic pull rod device along the circumferential direction, and the rear adapter plate (8) is connected with the base (9). 2. a kind of general multi-link solid rocket motor vertical tooling according to claim 1, is characterized in that: described telescopic pull rod device comprises multi-section section pull rod (6), adjacent section pull rod (6) ) are connected by a connecting screw sleeve (7), and the segmented tie rod (6) connected with the front adapter plate (1) is the first segmented tie rod (6), and the upper end of the first segmented tie rod (6) is inserted in the On the front adapter plate (1), the segmented tie rod (6) connected with the rear adapter plate (8) is the tail segmented tie rod (6), and the lower end of the tailed segmented tie rod (6) is inserted in the rear turn. on the connecting plate (8). 3. A kind of general multi-link solid rocket motor vertical tooling according to claim 1, is characterized in that: described front adapter plate (1) is uniformly distributed with T-shaped grooves (2) along the circumferential direction A T-shaped stopper (3) is embedded in the T-shaped groove (2), and the front adapter plate (1) and the T-shaped stopper (3) are assembled into one body by fixing bolts (4). 4. A kind of general multi-link solid rocket motor vertical tooling according to claim 3, is characterized in that: described T-shaped stopper (3) working surface is provided with anti-debonding hole, described A PU polyurethane rubber pad (5) is adhered to the anti-debonding hole of the device.

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