Helmet impact testing machine

Abstract

A helmet impact testing machine comprises an equipment table, a worm wheel shaft, an air cylinder, a helmet seat, a roller shaft disc and a helmet shaft, the rear portion of the equipment table is fixedly connected with a worm frame, the front portion of the equipment table and the lower portion of the worm frame are both fixedly connected with an equipment support, the interior of a worm is fixedly connected with a worm shaft, the worm frame is matched with the worm shaft, and the worm frame is connected with the worm shaft. The worm shaft rotates in the worm frame, the side portion of the worm frame is fixedly connected with the worm motor, the interior of the worm motor is fixedly connected with the worm shaft, the front portion of the worm shaft is fixedly connected with the worm hand wheel, a pressing wheel groove is formed in the equipment table, the interior of the worm wheel is fixedly connected with the worm wheel shaft, the pressing wheel groove is matched with the worm wheel shaft, and the pressing wheel groove is connected with the worm wheel shaft.

Description

Technical Field

[0001] The utility model relates to the field of impact testing machines, in particular to a helmet impact testing machine. Background Art

[0002] The existing patent (publication number: CN220649976U) proposes a helmet impact testing machine. It includes an impact platform, a first side plate, a second side plate, a partition plate, a double-impact test mechanism, a hydraulic drive mechanism and a helmet locking mechanism. The first side plate, the second side plate and the partition plate are arranged on the upper end surface of the impact platform and enclose an impact space on the impact platform. The double-impact test mechanism, the hydraulic drive mechanism and the helmet locking mechanism are all arranged on the impact platform. The hydraulic drive mechanism includes a first hydraulic cylinder, a connecting plate and a sliding plate. The double-impact test mechanism includes a connecting column, a spherical impact head and a conical impact head. However, for the "hydraulic drive mechanism includes a first hydraulic cylinder" in this device, the hydraulic cylinder inside the impact platform is used to conduct impact tests on the helmet. When it is necessary to test other angles, the operator needs to re-fix the helmet, which is relatively inconvenient to use and has certain limitations. Summary of the Invention

[0003] Aiming at the above deficiencies of the existing technology, the utility model provides a helmet impact testing machine which drives the helmet inside the helmet shaft to rotate through a driving motor at the rear of the helmet seat, and cooperates with a worm motor at the lower part of the equipment table to drive the central shaft above the worm wheel to rotate, so that the central shaft drives the cylinder to adjust the angle, so that the equipment can adjust the angle of the impact test according to actual needs, thereby increasing the adaptability of the equipment. The worm motor drives the worm to drive the worm wheel to rotate. Due to the transmission principle of the worm and the worm wheel having a self-locking function, the cylinder maintains the adjusted angle during the test, thereby enhancing the stability of the equipment.

[0004] The purpose of the utility model is realized through the following technical solutions:

[0005] A helmet impact testing machine includes an equipment table, a worm wheel shaft, a cylinder, a helmet seat, a roller shaft disc and a helmet shaft. The rear part of the equipment table is fixedly connected with a worm frame. The front part of the equipment table and the lower part of the worm frame are both fixedly connected with an equipment support. The inside of the worm is fixedly connected with a worm shaft. The worm frame is adapted to the worm shaft. The worm frame connects the worm shaft. The worm shaft rotates inside the worm frame. The side part of the worm frame is fixedly connected with a worm motor. The inside of the worm motor is fixedly connected with the worm shaft. The front part of the worm shaft is fixedly connected with a worm handwheel. The inside of the equipment table has a pressure wheel groove. The inside of the worm wheel is fixedly connected with a worm wheel shaft. The pressure wheel groove is adapted to the worm wheel shaft. The pressure wheel groove connects the worm wheel shaft.

[0006] The worm wheel shaft rotates inside the press wheel groove, the worm engages with the side of the worm wheel, the side of the press wheel groove is fixedly connected to the press wheel shaft, the press wheel shaft is adapted to the press wheel, the press wheel shaft is connected to the press wheel, the press wheel rotates on the side of the press wheel shaft, the upper part of the worm wheel shaft is fixedly connected to the central shaft, the press wheel rotates under the central shaft, and the side of the central shaft is provided with a first cylinder bracket.

[0007] The rear part of the cylinder is fixedly connected to the cylinder seat, the cylinder seat is fixedly connected to the front part of the first cylinder bracket by bolts, the front part of the cylinder is fixedly connected to the top bracket, the inside of the top bracket is fixedly connected to the firing pin, the second cylinder bracket is fixedly connected to the upper part of the first cylinder bracket by bolts, the second cylinder bracket is adapted to the cylinder, the second cylinder bracket is connected to the cylinder, and the cylinder is clamped into the upper part of the second cylinder bracket. Beneficial effects

[0008] 1. During the use of the helmet impact testing machine of the present invention, the helmet inside the helmet shaft is driven to rotate by the drive motor at the rear of the helmet seat, and the central shaft above the worm wheel is driven to rotate by the worm motor at the lower part of the equipment table, so that the central shaft drives the cylinder to adjust the angle, so that the equipment can adjust the angle of the impact test according to actual needs, thereby increasing the adaptability of the equipment.

[0009] 2. During the use of the helmet impact testing machine of the present invention, the worm wheel is driven to rotate by the worm motor inside the worm bracket, so that the worm wheel drives the central shaft to adjust the angle. When the worm motor loses power, the operator can drive the central shaft to rotate by the worm handwheel at the rear of the worm shaft instead of the worm motor, thereby further increasing the adaptability of the equipment.

[0010] 3. During the use of the helmet impact testing machine of the present invention, the worm is driven by the worm motor to drive the worm wheel to rotate. Because the transmission principle of the worm and the worm wheel has a self-locking function, the cylinder maintains the adjusted angle during the test, thereby enhancing the stability of the equipment. Description of the drawings

[0011] Figure 1 It is a schematic structural diagram of a helmet impact testing machine described in the present invention.

[0012] Figure 2 It is a three-dimensional assembly schematic diagram of the structure of a helmet impact testing machine described in the present invention.

[0013] Figure 3 It is a three-dimensional assembly schematic diagram of the worm wheel structure of a helmet impact testing machine described in the present invention.

[0014] Figure 4 It is a three-dimensional assembly schematic diagram of the press wheel structure of a helmet impact testing machine described in the present invention.

[0015] Figure 5Schematic three-dimensional assembly diagram of the first cylinder frame structure of a helmet impact testing machine according to the present utility model.

[0016] Figure 6 Schematic three-dimensional assembly diagram of the helmet seat structure of a helmet impact testing machine according to the present utility model. Specific embodiments

[0017] The present utility model will be further described in detail below with reference to the drawings and embodiments:

[0018] Embodiment 1:

[0019] A helmet impact testing machine includes an equipment table 01, a worm shaft 10, a cylinder 15, a helmet seat 20, a roller shaft disc 22, and a helmet shaft 25. The rear part of the equipment table 01 is fixedly connected to a worm gear frame 02, and both the front part of the equipment table 01 and the lower part of the worm gear frame 02 are fixedly connected to an equipment support 03. The inside of a worm 04 is fixedly connected to a worm shaft 05. The worm gear frame 02 is adapted to the worm shaft 05. The worm gear frame 02 is connected to the worm shaft 05, and the worm shaft 05 rotates inside the worm gear frame 02. The side part of the worm gear frame 02 is fixedly connected to a worm motor 06, and the inside of the worm motor 06 is fixedly connected to the worm shaft 05. The front part of the worm shaft 05 is fixedly connected to a worm handwheel 07. During the use of the helmet impact testing machine, the worm motor 06 inside the worm gear frame 02 drives the worm gear 09 to rotate, so that the worm gear 09 drives the central shaft 13 to adjust the angle. When the worm motor 06 loses power, the operator can drive the central shaft 13 to rotate by using the worm handwheel 07 at the rear part of the worm shaft 05 instead of the worm motor 06, thereby further increasing the adaptability of the equipment. The inside of the equipment table 01 has a pressure wheel groove 08. The inside of the worm gear 09 is fixedly connected to the worm shaft 10. The pressure wheel groove 08 is adapted to the worm shaft 10. The pressure wheel groove 08 is connected to the worm shaft 10.

[0020] Embodiment 2:

[0021] The worm shaft 10 of the present utility model rotates inside the pressure wheel groove 08, and the worm 04 meshes with the side of the worm gear 09. During the use of the helmet impact testing machine, the worm motor 06 drives the worm 04 to drive the worm gear 09 to rotate. Due to the transmission principle of the worm 04 and the worm gear 09 having a self-locking function, the cylinder 15 can maintain the adjusted angle during testing, thereby enhancing the stability of the equipment. The side part of the pressure wheel groove 08 is fixedly connected to a pressure wheel shaft 11. The pressure wheel shaft 11 is adapted to a pressure wheel 12. The pressure wheel shaft 11 is connected to the pressure wheel 12. The pressure wheel 12 rotates on the side of the pressure wheel shaft 11. The upper part of the worm shaft 10 is fixedly connected to a central shaft 13. The pressure wheel 12 rotates under the central shaft 13. The side part of the central shaft 13 has a first cylinder frame 14.

[0022] Embodiment 3:

[0023] At the rear of the cylinder 15 of the present utility model, it is fixedly connected to the cylinder seat 16. The cylinder seat 16 is fixedly connected to the front of the first cylinder frame 14 by bolts. At the front of the cylinder 15, it is fixedly connected to the top frame 17. Inside the top frame 17, it is fixedly connected to the striker 18. The second cylinder frame 19 is fixedly connected to the upper part of the first cylinder frame 14 by bolts. The second cylinder frame 19 is adapted to the cylinder 15. The second cylinder frame 19 is connected to the cylinder 15, and the cylinder 15 is snapped into the upper part of the second cylinder frame 19.

[0024] Embodiment 4:

[0025] At the rear of the equipment table 01 of the present utility model, it is fixedly connected to the helmet seat 20. Inside the helmet rod base 23, there is a drive shaft 21. The helmet seat 20 is adapted to the drive shaft 21. The helmet seat 20 is connected to the drive shaft 21, and the drive shaft 21 rotates inside the helmet seat 20. At the front of the helmet seat 20, it is fixedly connected to the roller shaft disc 22.

[0026] Embodiment 5:

[0027] At the front of the roller shaft disc 22 of the present utility model, it is fixedly connected to the helmet rod base 23. At the rear of the helmet seat 20, it is fixedly connected to the drive motor 24. During the use of the helmet impact testing machine, the helmet inside the helmet shaft 25 is driven to rotate by the drive motor 24 at the rear of the helmet seat 20, and it cooperates with the worm motor 06 at the lower part of the equipment table 01 to drive the central shaft 13 on the upper part of the worm gear 09 to rotate, so that the central shaft 13 drives the cylinder 15 to adjust the angle, thereby enabling the equipment to adjust the angle of the impact test according to actual needs, increasing the adaptability of the equipment. Inside the drive motor 24, it is fixedly connected to the drive shaft 21. At the front of the helmet rod base 23, it is fixedly connected to the helmet shaft 25. At the side of the helmet shaft 25, it is fixedly connected to the helmet rope frame 26.

[0028] Embodiment 6:

[0029] Installation steps of the utility model: Fix the rear part of the equipment table 01 to the worm frame 02, fix both the front part of the equipment table 01 and the lower part of the worm frame 02 to the equipment support 03, fix the inside of the worm 04 to the worm shaft 05, rotate the worm shaft 05 inside the worm frame 02, fix the side part of the worm frame 02 to the worm motor 06, fix the inside of the worm motor 06 to the worm shaft 05, fix the front part of the worm shaft 05 to the worm handwheel 07, fix the inside of the worm gear 09 to the worm gear shaft 10, rotate the worm gear shaft 10 inside the pressure wheel groove 08, engage the worm 04 on the side of the worm gear 09, fix the side part of the pressure wheel groove 08 to the pressure wheel shaft 11, rotate the pressure wheel 12 on the side of the pressure wheel shaft 11, fix the upper part of the worm gear shaft 10 to the central shaft 13, rotate the pressure wheel 12 under the central shaft 13, fix the rear part of the cylinder 15 to the cylinder seat 16, fix the cylinder seat 16 to the front part of the first cylinder frame 14 through bolts, fix the front part of the cylinder 15 to the top frame 17, fix the inside of the top frame 17 to the striker 18, fix the second cylinder frame 19 to the upper part of the first cylinder frame 14 through bolts, insert the cylinder 15 into the upper part of the second cylinder frame 19, fix the rear part of the equipment table 01 to the helmet seat 20, rotate the drive shaft 21 inside the helmet seat 20, fix the front part of the helmet seat 20 to the roller shaft disc 22, fix the front part of the roller shaft disc 22 to the helmet rod base 23, fix the rear part of the helmet seat 20 to the drive motor 24, fix the inside of the drive motor 24 to the drive shaft 21, fix the front part of the helmet rod base 23 to the helmet shaft 25, and fix the side part of the helmet shaft 25 to the helmet rope frame 26.

[0030] The above is only the preferred embodiment of the utility model and is not used to limit the utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A helmet impact tester, characterized in that : It comprises an equipment platform (01), a worm gear shaft (10), a cylinder (15), a helmet seat (20), a roller shaft disc (22), and a helmet shaft (25), wherein the rear portion of the equipment platform (01) is fixedly connected to a worm gear frame (02), the front portion of the equipment platform (01) and the lower portion of the worm gear frame (02) are fixedly connected to an equipment bracket (03), the interior of the worm (04) is fixedly connected to a worm shaft (05), the worm gear frame (02) is adapted to the worm shaft (05), the worm gear frame (02) is connected to the worm shaft (05), the worm shaft (05) rotates inside the worm gear frame (02), the side portion of the worm gear frame (02) is fixedly connected to a worm motor (06), the interior of the worm motor (06) is connected to the worm shaft (05) is fixedly connected, the front part of the worm shaft (05) is fixedly connected to the worm hand wheel (07), the equipment platform (01) has a pressure wheel groove (08) inside, the worm wheel (09) is fixedly connected to the worm wheel shaft (10), the pressure wheel groove (08) is adapted to the worm wheel shaft (10), the pressure wheel groove (08) is connected to the worm wheel shaft (10), the worm wheel shaft (10) rotates inside the pressure wheel groove (08), the worm (04) is meshed with the side of the worm wheel (09), the side of the pressure wheel groove (08) is fixedly connected to the pressure wheel shaft (11), the pressure wheel shaft (11) is adapted to the pressure wheel (12), the pressure wheel shaft (11) is connected to the pressure wheel (12), and the pressure wheel (12) rotates on the side of the pressure wheel shaft (11).

2. A helmet impact tester according to claim 1, characterized in that The upper part of the worm gear shaft (10) is fixedly connected to the central shaft (13), the pressure wheel (12) rotates at the lower part of the central shaft (13), and the side part of the central shaft (13) is provided with a first cylinder frame (14).

3. A helmet impact tester according to claim 2, characterized in that The rear of the cylinder (15) is fixedly connected to the cylinder seat (16), the cylinder seat (16) is fixedly connected to the front of the first cylinder frame (14) by bolts, the front of the cylinder (15) is fixedly connected to the top frame (17), the inside of the top frame (17) is fixedly connected to the striker (18), the second cylinder frame (19) is fixedly connected to the upper part of the first cylinder frame (14) by bolts, the second cylinder frame (19) is adapted to the cylinder (15), the second cylinder frame (19) is connected to the cylinder (15), and the cylinder (15) is snapped into the upper part of the second cylinder frame (19).

4. A helmet impact tester according to claim 3, characterized in that The rear part of the equipment platform (01) is fixedly connected to the helmet seat (20), the helmet rod base (23) has a driving shaft (21) inside, the helmet seat (20) is adapted to the driving shaft (21), the helmet seat (20) is connected to the driving shaft (21), the driving shaft (21) rotates inside the helmet seat (20), and the front part of the helmet seat (20) is fixedly connected to the roller shaft disc (22).

5. A helmet impact tester according to claim 1, characterized in that The front part of the roller shaft disc (22) is fixedly connected to the helmet rod base (23), the rear part of the helmet seat (20) is fixedly connected to the driving motor (24), the interior of the driving motor (24) is fixedly connected to the driving shaft (21), the front part of the helmet rod base (23) is fixedly connected to the helmet shaft (25), and the side part of the helmet shaft (25) is fixedly connected to the helmet rope rack (26).

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