Thrust device for steel thin-walled cylinder with large slenderness ratio and ultrahigh strength

Abstract

The utility model provides a large-slenderness-ratio ultrahigh-strength steel thin-wall cylinder thrust device which comprises a thin-wall cylinder. One ends of the two sections of thin-wall cylinders are connected with the front butt joint flange and the rear butt joint flange respectively, the other ends of the two sections of thin-wall cylinders are provided with the front adapter disc and the rear adapter disc respectively, the rocket sled tackle is further installed on the outer wall of the end provided with the front adapter disc, and butt joint grooves are machined in the inner walls of the front adapter disc and the rear adapter disc respectively. A plurality of bolt holes are annularly distributed in the outer wall of the butt-joint groove, and the butt-joint groove is formed in the tail end of the thin-wall cylinder and fixed through hexagon socket screws. A thin-wall structure is adopted, so that the weight is light; the front and rear adapter plates can be quickly positioned and butted with the product; and by utilizing the butt flange, not only can large impact load in the launching test process be borne, but also the structure is simple and the processing is easy.

Description

Technical Field

[0001] The utility model relates to a large-slenderness-ratio ultra-high-strength steel thin-walled cylinder thrust device. Background Art

[0002] At present, the power source of strong impact and large overload test equipment is mostly air cannon, and the launch of the test product is all done by direct launch, that is, the test product is installed in the launch tube through a tray, and compressed air or gunpowder is used as the power source to push the tray, and then launch the test product. After the launch, the test product is out of control and difficult to recover. Recoverable overload test test products are mostly recovered by rocket skids. The test product needs to be installed on the rocket skid track. The rocket skid track cannot be installed in the launch tube, and the tray thrust cannot act on the test product.

[0003] In order to solve the above problems, the present invention designs a thin-walled cylindrical thrust device made of ultra-high strength steel with a large aspect ratio, which is suitable for the strong impact and large overload test of the rocket skid to recover the test object using an air cannon as the power source. It has a simple structure and light weight, can withstand the large impact load during the launch process, and has a small deformation, and has good adaptability to the strong impact and large overload test. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a thin-walled cylindrical thrust device made of ultra-high strength steel with a large aspect ratio.

[0005] The utility model is realized through the following technical solutions.

[0006] The utility model provides a large aspect ratio ultra-high strength steel thin-walled cylinder thrust device, comprising a thin-walled cylinder; one end of two sections of thin-walled cylinders are respectively connected to a front docking flange and a rear docking flange, the other ends of the two sections of thin-walled cylinders are respectively installed with a front adapter plate and a rear adapter plate, a rocket sled pulley is also installed on the outer wall of the end installed with the front adapter plate, the inner walls of the front adapter plate and the rear adapter plate are both processed with docking grooves, a plurality of bolt holes are circumferentially distributed on the outer wall of the docking groove, the docking groove is installed at the end of the thin-walled cylinder and fixed by a hexagon socket bolt.

[0007] The end surfaces of the front transfer plate and the rear transfer plate are also processed with a positioning boss and a positioning groove respectively, and the two positioning bosses and the positioning grooves are respectively arranged on the front transfer plate and the rear transfer plate in a relatively manner.

[0008] The front docking flange and the rear docking flange both include a docking hole and a docking sleeve. The docking hole is fixed at one end of the docking sleeve. A step is processed on the outer wall of the other end of the docking sleeve, and a plurality of through holes are processed on the docking hole.

[0009] The front docking flange is provided with a guide groove, the rear docking flange is provided with a guide ring, and the guide groove is arranged on the guide ring.

[0010] The rocket sled pulley is fixed on the thin-wall cylinder through a fixing ring, and the fixing ring includes two circular rings.

[0011] The thin-walled cylinder is formed by spinning and welding 300M steel.

[0012] The beneficial effects of the utility model are: the thin-wall structure is adopted to make it light in weight; the front and rear adapter plates can be quickly positioned and docked with the product; the docking flange is used, which not only enables it to withstand the large impact load during the launch experiment, but also makes its structure simple and easy to process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the push rod device of the utility model;

[0014] Figure 2 This is a schematic diagram of the thin-walled cylinder structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the front transfer plate of the utility model;

[0016] Figure 4 This is a schematic diagram of the rear transfer plate structure of the utility model;

[0017] Figure 5 This is a schematic diagram of the front docking flange structure of the utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the rocket sled pulley of the utility model;

[0019] Figure 7 This is a schematic diagram of the fixing ring structure of the utility model;

[0020] Figure 8 This is a schematic diagram of the tray structure of the utility model;

[0021] In the figure: 1-front adapter plate, 2-thin-wall cylinder, 3-front docking flange, 4-rear docking flange, 5-rear adapter plate, 6-fixing ring, 7-bolt hole, 8-positioning boss, 9-rocket sled pulley, 10-docking groove, 11-positioning groove, 12-installation threaded hole, 13-docking tube, 14-docking hole, 15-tray. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0023] A high-slenderness ratio ultra-high-strength steel thin-walled cylinder thrust device comprises a thin-walled cylinder 2; one end of two sections of thin-walled cylinder 2 is respectively connected to a front docking flange 3 and a rear docking flange 4, and the front docking flange 3 and the rear docking flange 4 are installed by 36 cylindrical head hexagon socket screws evenly distributed in the circumference. The other ends of the two sections of thin-walled cylinder 2 are respectively installed with a front adapter plate 1 and a rear adapter plate 5, and a rocket sled block 9 is also installed on the outer wall of the end where the front adapter plate 1 is installed, and the inner walls of the front adapter plate 1 and the rear adapter plate 5 are both processed with docking grooves 10, and the outer wall of the docking groove 10 is circumferentially distributed with a plurality of bolt holes 7, and the docking groove 10 is installed at the end of the thin-walled cylinder 2 and fixed by hexagon socket bolts.

[0024] The end surfaces of the front transfer plate 1 and the rear transfer plate 5 are also processed with positioning bosses 8 and positioning grooves 11, respectively. The two positioning bosses 8 and positioning grooves 11 are respectively arranged on the front transfer plate 1 and the rear transfer plate 5. The positioning boss 8 is plugged into the groove of the docking surface of the tested product to ensure the docking positioning accuracy, and the positioning groove 11 docks the push rod with the boss of the tray docking surface.

[0025] The front docking flange 3 and the rear docking flange 4 both include a docking hole 14 and a docking sleeve 13 . The docking hole 14 is fixed at one end of the docking sleeve 13 . A step is processed on the outer wall of the other end of the docking sleeve 13 . A plurality of through holes are processed on the docking hole 14 .

[0026] The front docking flange 3 is provided with a guide groove, the rear docking flange 4 is provided with a guide ring, and the guide groove is arranged on the guide ring, thereby reducing the difficulty of processing the push rod, ensuring the overall straightness, and improving the strength of the thrust device.

[0027] The rocket sled pulley 9 is fixed on the thin-walled cylinder 2 by a fixing ring 6, and the fixing ring 6 includes two rings. The two rings are respectively arranged at the two ends of the rocket sled pulley 9 to limit the rocket sled pulley 9 from sliding on the thin-walled cylinder.

[0028] In order to reduce the weight of the push-pull rod, the thin-walled cylinder 2 is formed by spinning welding of 300M steel.

Claims

1. A high-slenderness-ratio ultra-high-strength steel thin-walled cylindrical thrust device, comprising a thin-walled cylinder (2), characterized in that: One end of the two thin-walled cylinders (2) is connected to a front docking flange (3) and a rear docking flange (4) respectively, and the other ends of the two thin-walled cylinders (2) are respectively installed with a front transfer plate (1) and a rear transfer plate (5), and a rocket sled pulley (9) is also installed on the outer wall of the end installed with the front transfer plate (1), and the inner walls of the front transfer plate (1) and the rear transfer plate (5) are both processed with a docking groove (10), and the outer wall of the docking groove (10) is circumferentially distributed with a plurality of bolt holes (7), and the docking groove (10) is installed at the end of the thin-walled cylinder (2) and fixed by a hexagon socket bolt.

2. The high slenderness ratio ultra-high strength steel thin-walled cylindrical thrust device according to claim 1, characterized in that: The end surfaces of the front transfer plate (1) and the rear transfer plate (5) are also respectively machined with a positioning boss (8) and a positioning groove (11); the two positioning bosses (8) and the positioning groove (11) are respectively arranged on the front transfer plate (1) and the rear transfer plate (5) in a relative manner.

3. The high slenderness ratio ultra-high strength steel thin-walled cylindrical thrust device according to claim 1, characterized in that: The front docking flange (3) and the rear docking flange (4) both comprise a docking hole (14) and a docking sleeve (13); the docking hole (14) is fixed at one end of the docking sleeve (13); a step is processed on the outer wall of the other end of the docking sleeve (13); and a plurality of through holes are processed on the docking hole (14).

4. The high slenderness ratio ultra-high strength steel thin-walled cylindrical thrust device according to claim 1, characterized in that: The front docking flange (3) is provided with a guide groove, the rear docking flange (4) is provided with a guide ring, and the guide groove is invertedly connected to the guide ring.

5. The high slenderness ratio ultra-high strength steel thin-walled cylindrical thrust device according to claim 1, characterized in that: The rocket sled trolley (9) is fixed on the thin-walled cylinder (2) via a fixing ring (6), and the fixing ring (6) includes two circular rings.

6. The high slenderness ratio ultra-high strength steel thin-walled cylindrical thrust device according to claim 1, characterized in that: The thin-walled cylinder (2) is formed by spinning and welding 300M steel.

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