CN218974052U - Secondary impact prevention device - Google Patents
Secondary impact prevention device Download PDFInfo
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- CN218974052U CN218974052U CN202223401769.3U CN202223401769U CN218974052U CN 218974052 U CN218974052 U CN 218974052U CN 202223401769 U CN202223401769 U CN 202223401769U CN 218974052 U CN218974052 U CN 218974052U
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- lock
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- seat
- lock head
- electromagnet
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- 230000002265 prevention Effects 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims 3
- 238000009863 impact test Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 238000004088 simulation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000011173 large scale experimental method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
A secondary impact prevention device belongs to the technical field of impact test and comprises a mounting seat; the installation seat is provided with a guide lock seat, the guide lock seat is provided with a lock head for locking the impact hammer in a sliding manner, the lock head is in power connection with a lock head release mechanism, and the lock head is provided with a limiting piece for preventing the lock head from being separated from the guide lock seat; the lock head release mechanism is electrically connected with a displacement sensor for detecting an impact piece; the device can lock the impact hammer in the process of rebound of the longitudinal falling of the impact hammer so as to avoid the influence of secondary impact of rebound falling on test data and ensure the accuracy of the test data.
Description
Technical Field
The utility model belongs to the technical field of impact test, and particularly relates to a secondary impact prevention device.
Background
The current impact simulation experiments are mostly large-scale experiments, the volumes and the masses of an impact test bed and an impact drop hammer are smaller, the influence of secondary impact caused by low rebound height of the drop hammer is smaller, however, in the impact simulation experiments aiming at 1:1 repeated etching, the drop hammer mass is large, the rebound height is higher, and the secondary impact caused by the rebound height has great influence on test data.
Disclosure of Invention
The present utility model is directed to a secondary impact prevention device, which solves the above-mentioned problems of the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a secondary impact prevention device comprises a mounting seat; the installation seat is provided with a guide lock seat, the guide lock seat is provided with a lock head for locking the impact hammer in a sliding manner, the lock head is in power connection with a lock head release mechanism, and the lock head is provided with a limiting piece for preventing the lock head from being separated from the guide lock seat; the lock head release mechanism is electrically connected with a displacement sensor for detecting the impact piece.
Compared with the prior art, the technical scheme has the following effects:
the device can lock the impact hammer in the process of rebound of the longitudinal falling of the impact hammer so as to avoid the influence of secondary impact of rebound falling on test data and ensure the accuracy of the test data.
Preferably, the lock release mechanism comprises an electromagnet assembly for locking the lock, a transmission assembly for resetting the lock and an elastic piece.
Preferably, the transmission assembly comprises a gear box, a driving cavity is arranged in the gear box, a driving gear is arranged in the driving cavity, the driving gear is connected with a rack in a meshed mode, one of two ends of the rack is assembled with the lock head in an interference mode, and the driving gear is connected with a driving device in a power mode.
Preferably, the electromagnet assembly comprises a first electromagnet, a second electromagnet and a mounting base, wherein the mounting base is arranged on the gear box, the first electromagnet is arranged on the mounting base, the second electromagnet is arranged at the other end of the rack, and when the second electromagnet is electrified, the second electromagnet is adsorbed on the first electromagnet.
Preferably, the limiting piece is arranged on the lock head, and under the condition that the lock head is released, the end face of the limiting piece, which faces the movement direction of the lock head, is abutted against the surface of the guide lock seat.
Preferably, the elastic member is a spring, one end of the spring abuts against the surface of the limiting member, and the other end of the spring abuts against the surface of the gear box.
Preferably, the driving device comprises a driving shaft arranged on the driving gear, one end of the driving shaft is rotationally arranged on the end wall of the driving cavity through a bearing seat, the other end of the driving shaft penetrates through the end wall of the driving cavity to be in power connection with a torque amplifying device, and the input end of the torque amplifying device is provided with a hand wheel.
Preferably, the output end of the torque amplifying device is in power connection with a spline shaft, a shaft body of the spline shaft is in spline connection with a connecting sleeve, a driving shaft is arranged on the driving gear, one end of the driving shaft is rotationally arranged on the inner wall of the driving cavity through a bearing seat, and the other end of the driving shaft penetrates through the end wall of the driving cavity and is connected with the connecting sleeve.
Preferably, the shaft body of the driving shaft is provided with a connecting pin, one end of the connecting sleeve, which faces the driving gear, is provided with a connecting notch, the connecting sleeve is provided with a shifting fork in an inserted mode, the fork body of the shifting fork is provided with a hinge point, the hinge point is provided with a hinge seat, the hinge seat is fixedly provided with a mounting plate, the mounting plate is arranged at intervals between the gear box and the torque amplifying device, and the mounting plate is fixedly arranged on the gear box in parallel through bolts.
Drawings
FIG. 1 is a first schematic illustration of the overall structure of the present utility model;
FIG. 2 is a second schematic illustration of the overall structure of the present utility model;
FIG. 3 is a first schematic illustration of a cross-sectional structure of the present utility model;
FIG. 4 is a second schematic view of a cross-sectional structure of the present utility model;
FIG. 5 is a first schematic illustration of a partial structure of the present utility model;
fig. 6 is a second schematic view of a partial structure of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made with reference to the accompanying drawings, in which it is evident that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Examples:
the secondary impact prevention device is used for an impact test platform for longitudinal impact, locks the impact hammer to prevent the secondary impact caused by rebound from influencing test data in the process of rebound of the longitudinal falling of the impact hammer, ensures the accuracy of the test data, and comprises a mounting seat 1; the installation seat 1 is provided with a guide lock seat 3, the guide lock seat 3 is provided with a lock head 2 for locking the impact hammer in a sliding manner, in the embodiment, the impact hammer is ejected to the lower part of a sliding frame for installing the impact hammer from the guide lock seat 3 in the falling rebound and falling process, so that the sliding frame is erected to realize the locking of the impact hammer, and in an actual application scene, the device is arranged around the lower part of the sliding frame, so that the locking is more stable.
The lock head 2 of the device is in power connection with a lock head release mechanism, and a limiting piece 9 for preventing the lock head 2 from being separated from the guide lock seat 3 is arranged on the lock head 2; the lock release mechanism is electrically connected with a displacement sensor for detecting an impact piece, wherein the impact piece refers to an assembly of an impact hammer and a sliding frame.
Further, the lock release mechanism comprises an electromagnet assembly for locking the lock 2, a transmission assembly for resetting the lock 2 and an elastic piece 4;
the transmission assembly comprises a gear box 10, a driving cavity 100 is arranged in the gear box 10, a driving gear 12 is arranged in the driving cavity 100, a rack 13 is connected with the driving gear 12 in a meshed mode, one of two ends of the rack 13 is assembled with the lock head 2 in an interference mode, and the driving gear 12 is connected with a driving device in a power mode.
It should be noted that, referring to fig. 3, the lock 2 includes a lock body 20, the lock body 20 is slidably mounted on the guide lock seat 3, for convenience of explanation and understanding, one end of the lock body 2 away from the lock release mechanism is a head end, in this embodiment, a plug-in unit 21 is connected to the tail end of the lock body 2, and the plug-in unit 21 is plugged onto the rack 13, and a limiting member 9 is disposed on the plug-in unit 21, where, in the case that the release of the lock 2 is completed, the end face of the limiting member 9 facing the movement direction of the lock 2 is abutted on the surface of the guide lock seat 3, so as to avoid the lock body 20 from being separated from the guide lock seat 3.
In addition, an elastic member 4 is disposed between the gear case 10 and the guide lock holder 3, in this embodiment, the elastic member 4 is a spring, the elastic member 4 is sleeved on the outer side of the plug-in unit 21, two ends of the elastic member 4 are respectively abutted to the outer surface of the gear case 10 and the outer surface of the limiting member 9, and the action of rapidly ejecting the lock head body 20 is completed under the condition that the electromagnet assembly is powered off through the elastic member 4.
Secondly, the electromagnet assembly comprises a first electromagnet 6, a second electromagnet and a mounting base 5, wherein the mounting base 5 is arranged on the gear box 10, the first electromagnet 6 is arranged on the mounting base 5, the second electromagnet is arranged at the other end of the rack 13, and when the power is on, the second electromagnet is adsorbed on the first electromagnet 6.
It is worth mentioning that the driving device includes a driving shaft 120 disposed on the driving gear 12, one end of the driving shaft 120 is rotatably disposed on the end wall of the driving cavity 100 through a bearing seat, the other end of the driving shaft passes through the end wall of the driving cavity 100 and is dynamically connected with a torque amplifying device 11, and an input end of the torque amplifying device 11 is provided with a hand wheel 8; the torque amplifying device 11 is driven by the hand wheel 8 to drive the driving gear 12 and the rack 13 to move, so that the lock head body 20 returns, at the moment, the elastic piece 4 is pressed, and meanwhile, the electromagnet assembly is electrified;
more specifically, the output end of the torque amplifying device 11 is dynamically connected with a spline shaft, a shaft body of the spline shaft is in spline connection with a connecting sleeve 15, a driving shaft 120 is arranged on the driving gear 12, one end of the driving shaft 120 is rotationally arranged on the inner wall of the driving cavity 100 through a bearing seat, and the other end of the driving shaft 120 passes through the end wall of the driving cavity 100 and is connected with the connecting sleeve 15;
a connecting pin 121 is arranged on the shaft body of the driving shaft 120, a connecting notch 150 is arranged at one end, facing the driving gear 12, of the connecting sleeve 15, a shifting fork 14 is inserted into the connecting sleeve 15, a hinge point is arranged on the fork body of the shifting fork 14, a hinge seat is arranged on the hinge point, a mounting plate 7 is fixedly arranged on the hinge seat, the mounting plate 7 is arranged on the gear box 10 and the torque amplifying device 11 at intervals, and the mounting plate 7 is fixedly arranged on the gear box 10 in parallel through bolts; the shifting fork 14 drives the connecting sleeve 15 to move on the spline shaft, so that the assembly of the connecting notch 150 and the connecting pin 121 is realized, the connection and disconnection of the torque amplifying device 11 and the driving shaft 120 are realized, and the problem that additional resistance is ejected to the lock head 2 under the condition of power failure to influence the flexibility of the device is avoided.
In the description of the present utility model, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a number" is two or more. In addition, the term "include" and any variations thereof are intended to cover a non-exclusive inclusion.
The utility model has been described in terms of embodiments, and the device can be modified and improved without departing from the principles of the utility model. It should be noted that all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present utility model.
Claims (9)
1. The secondary impact prevention device comprises a mounting seat (1); the method is characterized in that: the device is characterized in that a guide lock seat (3) is arranged on the mounting seat (1), a lock head (2) for locking the impact hammer is arranged on the guide lock seat (3) in a sliding mode, the lock head (2) is in power connection with a lock head release mechanism, and a limiting piece (9) for preventing the lock head (2) from being separated from the guide lock seat (3) is arranged on the lock head (2); the lock head release mechanism is electrically connected with a displacement sensor for detecting the impact piece.
2. A secondary impact device as claimed in claim 1, wherein: the lock release mechanism comprises an electromagnet assembly for locking the lock (2), a transmission assembly for resetting the lock (2) and an elastic piece (4).
3. A secondary impact device as claimed in claim 2, wherein: the transmission assembly comprises a gear box (10), a driving cavity (100) is arranged in the gear box (10), a driving gear (12) is arranged in the driving cavity (100), a rack (13) is connected with the driving gear (12) in a meshed mode, one of two ends of the rack (13) is assembled with the lock head (2) in an interference mode, and the driving gear (12) is connected with a driving device in a power mode.
4. A secondary impact device as claimed in claim 3 wherein: the electromagnet assembly comprises a first electromagnet (6), a second electromagnet and a mounting base (5), wherein the mounting base (5) is arranged on the gear box (10), the first electromagnet (6) is arranged on the mounting base (5), the second electromagnet is arranged at the other end of the rack (13), and when the second electromagnet is electrified, the second electromagnet is adsorbed on the first electromagnet (6).
5. A secondary impact device as claimed in claim 3 or claim 4 wherein: the limiting piece (9) is arranged on the lock head (2), and under the condition that the release of the lock head (2) is completed, the end face of the limiting piece (9) facing the movement direction of the lock head is abutted to the surface of the guide lock seat (3).
6. A secondary impact device as claimed in claim 5 wherein: the elastic piece (4) is a spring, one end of the spring is abutted against the surface of the limiting piece (9), and the other end of the spring is abutted against the surface of the gear box (10).
7. A secondary impact device as claimed in claim 3 wherein: the driving device comprises a driving shaft (120) arranged on the driving gear (12), one end of the driving shaft (120) is rotationally arranged on the end wall of the driving cavity (100) through a bearing seat, the other end of the driving shaft penetrates through the end wall of the driving cavity (100) and is in power connection with a torque amplifying device (11), and a hand wheel (8) is arranged at the input end of the torque amplifying device (11).
8. A secondary impact device as claimed in claim 7 wherein: the torque amplification device is characterized in that the output end of the torque amplification device (11) is in power connection with a spline shaft, a connecting sleeve (15) is in spline connection with a shaft body of the spline shaft, a driving shaft (120) is arranged on the driving gear (12), one end of the driving shaft (120) is rotationally arranged on the inner wall of the driving cavity (100) through a bearing seat, and the other end of the driving shaft penetrates through the end wall of the driving cavity (100) and is connected with the connecting sleeve (15).
9. A secondary impact device as claimed in claim 8 wherein: be equipped with connecting pin (121) on the axis body of drive shaft (120), orientation on adapter sleeve (15) drive gear (12)'s one end is equipped with connection notch (150), just cartridge has shift fork (14) on adapter sleeve (15), be equipped with a pin joint on the fork body of shift fork (14), articulated seat on the pin joint, articulated seat has set firmly mounting panel (7), mounting panel (7) interval set up in gear box (10) with torque amplification device (11), just mounting panel (7) pass through the bolt parallel set firmly in on gear box (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223401769.3U CN218974052U (en) | 2022-12-19 | 2022-12-19 | Secondary impact prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223401769.3U CN218974052U (en) | 2022-12-19 | 2022-12-19 | Secondary impact prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218974052U true CN218974052U (en) | 2023-05-05 |
Family
ID=86152729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223401769.3U Active CN218974052U (en) | 2022-12-19 | 2022-12-19 | Secondary impact prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218974052U (en) |
-
2022
- 2022-12-19 CN CN202223401769.3U patent/CN218974052U/en active Active
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 310000 room 8418, No. 2, Tushan Lane 1, Huancheng East Road, Shangcheng District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Detai Defense Technology Co.,Ltd. Country or region after: China Address before: 310000 room 8418, No. 2, Tushan Lane 1, Huancheng East Road, Shangcheng District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU DETI CIVIL AIR DEFENSE EQUIPMENT Co.,Ltd. Country or region before: China |