CN219830667U - Dummy chest calibration equipment for automobile crash test - Google Patents
Dummy chest calibration equipment for automobile crash test Download PDFInfo
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- CN219830667U CN219830667U CN202321242141.5U CN202321242141U CN219830667U CN 219830667 U CN219830667 U CN 219830667U CN 202321242141 U CN202321242141 U CN 202321242141U CN 219830667 U CN219830667 U CN 219830667U
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- test
- grapple
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- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 238000004804 winding Methods 0.000 claims abstract description 14
- 238000005381 potential energy Methods 0.000 claims abstract description 3
- 230000003139 buffering effect Effects 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 10
- 230000001939 inductive effect Effects 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model provides a dummy chest calibration device for an automobile crash test, which comprises a motor driving device, a lifting belt, a release mechanism assembly, an impact hammer, a test platform and a speed measuring device, wherein the motor driving device is arranged on the lifting belt; the test platform is used for installing a dummy for test; the impact hammer is suspended above the test platform; one end of the lifting belt is connected with the impact hammer through the release mechanism assembly; the other end is fixed in the motor driving device; the motor driving device is arranged at a position higher than the impact hammer, and the impact hammer is lifted by the winding belt to store potential energy; the release mechanism assembly can clamp or release the impact hammer; the speed measuring device is arranged on the side of the test platform and used for detecting the speed of the impact hammer hitting the dummy. The calibration equipment provided by the utility model has the advantages of simpler test operation and higher working efficiency; the dummy after being impacted can be better protected, abrasion caused by the impact of the dummy on the rigid structure baffle can be avoided, and test noise can be reduced.
Description
Technical Field
The utility model relates to the field of automobile safety detection, in particular to a dummy chest calibration device for an automobile collision test.
Background
In the technical field of automobile safety detection, an automobile collision test is an important test means for checking automobile safety performance. The dummy for the test is taken as a basic tool of the automobile crash test, and plays a vital role in the development of automobile safety business. In order to ensure the accuracy of the test data, the dummy used in the automobile crash test is recalibrated before each test.
In the prior art, equipment for calibrating the chest performance of a dummy adopts a support structure, a test bed, a lifting mechanism and an impact hammer, wherein the tested dummy is arranged on the test bed, and the impact hammer is connected to the support structure through a connecting rope. When the calibration test is carried out, the lifting mechanism lifts the impact hammer to a certain height, then an operator measures the height of the impact hammer by using a measuring scale or observes the height of the impact hammer through a real-time display device, and when the impact hammer is lifted to the required height, the impact hammer is released to collide with the chest of the dummy, so that the impact calibration test of the chest performance of the dummy is completed. However, the existing calibration device has the following problems:
(1) The current calibration equipment needs manual operation of operating personnel when lifting the test platform to a specified height, and is time-consuming and labor-consuming, and influences the working efficiency.
(2) The device for protecting the dummy after the current calibration equipment is impacted is of a rigid structure, the dummy cannot be effectively protected, the skin of the dummy is possibly abraded, and the noise of the dummy impacting the rigid protection device is large.
(3) The release device in the current calibration equipment lifting mechanism is likely to strike the lifting motor excessively due to lifting, so that the lifting motor and the release mechanism are damaged.
(4) The release device in the existing calibration equipment lifting mechanism is not provided with safety protection measures, if an operator touches a release button by mistake or a release switch fails, the impact hammer is released carelessly to easily cause damage to equipment and personnel, and certain potential safety hazards exist.
Disclosure of Invention
Specifically, the utility model provides a chest calibration device for an automobile crash test dummy, which comprises a motor driving device, a lifting belt, a release mechanism assembly, an impact hammer, a test platform and a speed measuring device;
the test platform is used for installing a dummy for test; the impact hammer is suspended above the test platform;
one end of the lifting belt is connected with the impact hammer through the release mechanism assembly; the other end is fixed in the motor driving device;
the motor driving device is arranged at a position higher than the impact hammer and comprises a belt winding mechanism, and the belt winding mechanism is used for winding a belt to enable the impact hammer to be lifted to store potential energy;
the release mechanism assembly comprises a grapple assembly, a control switch and a pin shaft; the grapple assembly can clamp or release the impact hammer under the drive of the control switch; the pin shaft is used for connecting the lifting belt;
the speed measuring device is arranged on the side of the test platform and used for detecting the speed of the impact hammer hitting the dummy.
Further, the impact hammer comprises a pendulum bob, a pulley, a grating and a traction rope;
the pulleys are arranged on two sides of the pendulum bob and are used for installing a suspension rope;
the side surface of the pendulum bob is provided with a grating for measuring the speed by matching with the speed measuring device;
the traction rope is connected with the grapple assembly.
Further, the motor driving device comprises a motor, a coupling, a guide mechanism and a motor box assembly;
the motor box assembly is used for installing the motor, the coupler and the belt winding mechanism;
the motor is used for driving the belt winding mechanism through a coupler;
the guide mechanism is arranged at the bottom of the motor box assembly and is used for adjusting the direction of the lifting belt.
Further, the automobile crash test dummy chest calibration device further comprises a follow-up device assembly;
the follow-up device assembly comprises a follow-up connecting plate, a sleeve and an inductive switch;
the two follow-up connecting plates are respectively arranged on the guide mechanism; the two sleeves are arranged between the follow-up connecting plates and respectively clamp the lifting belt;
the inductive switch is arranged on the follow-up connecting plate and is used for sensing the release mechanism assembly.
Further, the release mechanism assembly further includes a sensing block; the induction block is used for being matched with the induction switch, and lifting action is stopped when the induction switch induces the induction block.
Further, the release mechanism assembly further comprises a protection switch;
the control switch drives the grapple assembly to clamp, and the side plate moves forwards; when the grapple assembly is released, the side plate moves backwards;
the protective switch is provided with a blocking column, and the blocking column stretches out to prevent the side plate from moving backwards when the protective switch is started; when the protection switch is closed, the blocking column is retracted, and the side plate can move backwards.
Further, the release mechanism assembly further comprises a grapple mounting bracket and a quick release bolt;
the grapple mounting bracket is used for mounting the grapple assembly, the control switch and the pin shaft;
the quick-release bolt is arranged on the grapple mounting bracket and is used for fixing the grapple assembly; and after the quick-release bolt is removed, the grapple hook assembly can clamp or release the impact hammer.
Further, the chest calibration device of the automobile crash test dummy further comprises an electric control system;
the test platform can be driven by the electric control system to adjust the height.
Further, the chest calibration device for the automobile crash test dummy further comprises a buffer net rack;
the buffer net rack is fixedly arranged on the rear side of the test platform and can lift up and down along with the test platform;
the buffering net rack comprises a buffering net, the dummy can fall to the buffering net after being impacted by the impact hammer, and the buffering net can slow down the impact force to protect the tested dummy.
Further, the chest calibration equipment for the automobile crash test dummy further comprises a lifting platform car;
the lifting platform truck can freely move and adjust the height, is arranged at the side end of the test platform and is used for supporting a dummy in the side collision test of the dummy.
The beneficial effects achieved by the utility model are as follows:
the calibration equipment provided by the utility model has the advantages of simpler test operation and higher working efficiency. The test platform for installing the dummy can be controlled by the electric control system to automatically rise and fall to the required height; the dummy after being impacted can be better protected, abrasion caused by the impact of the dummy on the rigid structure baffle can be avoided, and test noise can be reduced.
According to the calibration equipment, the follow-up device assembly can rotate along with the lifting belt in real time, and when the proximity switch in the follow-up device assembly recognizes the induction clamping blocks fixed on the lifting belt, the lifting action is automatically stopped, so that the motor driving device is effectively protected, and the release mechanism is prevented from being crashed into the motor driving device due to excessive lifting.
The calibration equipment provided by the utility model is safer and more reliable to operate and more reasonable in structural design. The release mechanism assembly has the double safety protection functions of preventing false touch and preventing failure of the control switch, and effectively protects test operators and calibration equipment.
According to the calibration equipment, the release mechanism assembly is added with the error touch prevention function, and the release operation of the impact hammer can be performed only after the bolt is pulled out manually before the formal test operation is performed, so that the life safety of test operators is effectively protected.
Drawings
FIG. 1 is an isometric view of a dummy chest calibration device of the present utility model;
FIG. 2 is a side view of the dummy chest calibration device of the present utility model;
FIG. 3 is an isometric view of a dummy chest calibration device impact hammer of the present utility model;
FIG. 4 is an isometric view of a dummy chest calibration device follower of the present utility model;
FIG. 5 is an isometric view of a dummy chest calibration device release mechanism assembly of the present utility model;
in the figure: 1-calibrating a device bracket; 2-motor drive means; 3-lifting the belt; 4-a release mechanism assembly; 5-an impact hammer; 6-an electric control system; 7-lifting platform vehicles; 8-buffering net rack; 9-a test platform; 10-a speed measuring device; 11-a follower assembly; 4.1-grapple assembly; 4.2-grapple mounting bracket; 4.3-quick release bolts; 4.4-protection switch; 4.5-controlling the switch; 4.6-switch mounting brackets; 4.7-pin shafts; 5.1-pendulum bob; 5.2-pulleys; 5.3 grating; 5.4 traction ropes; 11.1-a follow-up connecting plate; 11.2-a plurality of connecting pin shafts; 11.3-sleeve; 11.4-inductive switch.
Detailed Description
The technical scheme of the present utility model will be described in more detail with reference to the accompanying drawings, and the present utility model includes, but is not limited to, the following examples.
As shown in fig. 1-2, the automobile crash test dummy chest calibration device comprises a calibration device bracket 1, a motor driving device 2 and an electric control system 6 which are arranged on the bracket, a follower assembly 11 which is arranged on the lower side of the motor driving device 2, an impact hammer 5 which is connected on the bracket through a connecting rope, a release mechanism assembly 4 which is used for lifting the impact hammer 5 to a required height and is connected with the impact hammer 5 in a separated manner, a test platform 9 for installing a dummy, a lifting belt 3, a lifting platform car 7, a buffer rack 8 and a speed measuring device 10.
The calibration equipment support 1 comprises a plurality of upright posts, cross beams, longitudinal beams and diagonal braces; the middle part stand and rear portion stand are the rectangle setting, and the front portion stand setting is in just the outside in middle part stand center, and the front portion stand inboard is fixed with motor drive 2 for release jump bit 5, and the middle part stand outside is fixed with electrical system 6, is equipped with the test platform 9 that installation dummy was used between middle part stand and the rear portion stand.
As shown in fig. 3, pulleys 5.2 are arranged on two sides of a pendulum 5.1 in the impact hammer 5, a connecting rope is fixed on a longitudinal beam between rear upright posts of the calibration equipment support 1 through the pulleys 5.2, a grating 5.3 for measuring the speed in a matching manner is further arranged on the side face of the pendulum 5.1, and a traction rope 5.4 is fixed on the pendulum 5.1.
The test platform 9 can be automatically lifted to a required height under the control of the electronic control system 6. The test platform 9 is laterally provided with a lifting platform car 7 which can be moved to any position and fixed so as to perform a dummy side collision.
The motor driving device 2 comprises a motor, a motor bracket, a shaft coupling, a bearing seat, a belt winding mechanism, a guiding mechanism and a motor box assembly. One end of the lifting belt 3 is fixed on a rotating shaft of a belt winding mechanism in the motor driving device 2, the motor case extends out of the guiding mechanism through the follow-up device assembly 11, and the other end of the lifting belt is fixed on an end pin of the release mechanism assembly 4. The lower side of the motor case is provided with a follower assembly 11 connected to the guide mechanism.
As shown in fig. 4, the follower assembly 11 includes a follower connection plate 11.1, a plurality of connection pins 11.2, a sleeve 11.3, and an inductive switch 11.4. The two follow-up connecting plates 11.1 are respectively arranged on the guide mechanism; two sleeves 11.3 are arranged between the two follower webs 11.1 and clamp the lifting belt 3 respectively. An induction block which is fixed on the lifting belt 3 and is close to the release mechanism assembly 4 is arranged between the follow-up device assembly 11 and the release mechanism assembly 4, and the follow-up device assembly 11 can rotate along with the lifting belt 3 around a connecting pin shaft which is fixed on a guide mechanism in the motor driving device 2. In the process of lifting the impact hammer 5, the lifting action is automatically stopped when the inductive switch senses the inductive block positioned at the front part of the release mechanism assembly 4.
As shown in fig. 5, the release mechanism assembly 4 includes a grapple assembly 4.1, a grapple mounting bracket 4.2, a quick release latch 4.3, a protection switch 4.4, a control switch 4.5, a switch mounting bracket 4.6, a pin 4.7, and the like. The release mechanism assembly 4 clamps the upper traction rope 5.4 of the impact hammer 5 through the front end grapple assembly, drives the impact hammer 5 to lift under the winding action of the lifting belt 3, an operator can observe the real-time height of the impact hammer 5 through the real-time display device, and after the impact hammer is lifted to the required height, the control switch 4.5 pulls the grapple assembly 4.1 to slide backwards so that the grapple loosens the release impact hammer 5 to impact the dummy chest, and a dummy chest calibration test is carried out. The quick release bolt 4.3 is used for fixing the grapple assembly 4.1 on the grapple mounting bracket 4.2, and the operation of releasing the impact hammer 5 can be performed only by manually pulling out the quick release bolt 4.3, so that the grapple is prevented from being loosened by manual misoperation. The extension part of the protection switch 4.4 blocks the side plate of the grapple assembly 4.1 from sliding backwards so as to limit the release of the grapple and prevent the release of the grapple caused by the failure of the control switch 4.5.
The buffer net rack 8 comprises a net rack mounting seat, a buffer net and a mounting rack. The buffer net rack 8 is fixedly arranged at the rear side of the test platform 9 and can be lifted up and down along with the test platform 9. When the dummy is impacted by the impact hammer 5, the dummy falls to the buffering net rack, and the buffering net can effectively slow down the impact force, so that the tested dummy is better protected.
The utility model provides a dummy chest calibration device for an automobile crash test, which comprises the following working principles:
the motor driving device 2 winds the lifting belt 3 through the belt winding mechanism to enable the release mechanism assembly 4 and the impact hammer 5 to be lifted; the follower assembly 11 follows the lifting belt 3 to rise and adjust a proper angle, so that the inductive switch 11.4 of the follower assembly 11 can accurately detect the inductive block of the release mechanism assembly 4, and the lifting belt 3 stops being rolled up when the inductive block is detected.
When the test is started, double insurance of the quick-release bolt 4.3 and the protection switch 4.4 on the release mechanism assembly 4 is manually released, the impact hammer 5 is released by the grapple assembly 4.1 through the control switch 4.5, the impact hammer 5 hits a dummy to be tested under the action of gravity and a suspension rope, and the impact speed is measured by the speed measuring device 10.
The present utility model is not limited to the above embodiments, and those skilled in the art can implement the present utility model in various other embodiments according to the examples and the disclosure of the drawings, so that the design of the present utility model is simply changed or modified while adopting the design structure and concept of the present utility model, and the present utility model falls within the scope of protection.
Claims (10)
1. The automobile crash test dummy chest calibration equipment is characterized by comprising a motor driving device (2), a lifting belt (3), a release mechanism assembly (4), an impact hammer (5), a test platform (9) and a speed measuring device (10);
the test platform (9) is used for installing a dummy for test; the impact hammer (5) is suspended above the test platform (9);
one end of the lifting belt (3) is connected with the impact hammer (5) through the release mechanism assembly (4); the other end is fixed in the motor driving device (2);
the motor driving device (2) is arranged at a position higher than the impact hammer (5), and the motor driving device (2) comprises a belt winding mechanism which is used for winding a belt to enable the impact hammer (5) to lift up to store potential energy;
the release mechanism assembly (4) comprises a grapple assembly (4.1), a control switch (4.5) and a pin shaft (4.7); the grapple assembly (4.1) can clamp or release the impact hammer (5) under the drive of the control switch (4.5); the pin shaft (4.7) is used for connecting the lifting belt (3);
the speed measuring device (10) is arranged at the side of the test platform (9) and is used for detecting the speed of the impact hammer (5) hitting the dummy.
2. The car crash test dummy chest calibration apparatus according to claim 1, wherein the impact hammer (5) comprises a pendulum (5.1), a pulley (5.2), a grating (5.3) and a haulage rope (5.4);
the pulleys (5.2) are arranged at two sides of the pendulum bob (5.1) and are used for installing a suspension rope;
a grating (5.3) is arranged on the side surface of the pendulum bob (5.1) and is used for measuring the speed by matching with the speed measuring device (10);
the traction rope (5.4) is connected with the grapple assembly (4.1).
3. The automobile crash test dummy chest calibration apparatus according to claim 1, wherein the motor drive means (2) comprises a motor, a coupling, a guide mechanism and a motor box assembly;
the motor box assembly is used for installing the motor, the coupler and the belt winding mechanism;
the motor is used for driving the belt winding mechanism through a coupler;
the guiding mechanism is arranged at the bottom of the motor box assembly and used for adjusting the direction of the lifting belt (3).
4. A car crash test dummy chest calibration apparatus according to claim 3, characterized in that the car crash test dummy chest calibration apparatus further comprises a follower assembly (11);
the follow-up device assembly (11) comprises a follow-up connecting plate (11.1), a sleeve (11.3) and an inductive switch (11.4);
the two follow-up connecting plates (11.1) are respectively arranged on the guide mechanism; the two sleeves (11.3) are arranged between the follow-up connecting plates and respectively clamp the lifting belt (3);
the inductive switch (11.4) is arranged on the follow-up connecting plate (11.1) and is used for sensing the release mechanism assembly (4).
5. The vehicle crash test dummy chest calibration apparatus as defined in claim 4, wherein said release mechanism assembly (4) further comprises a sensing block; the induction block is used for being matched with the induction switch, and lifting action is stopped when the induction switch induces the induction block.
6. The car crash test dummy chest calibration apparatus as claimed in claim 1, wherein the release mechanism assembly (4) further comprises a protection switch (4.4);
the grapple assembly (4.1) is also provided with a side plate, and the side plate moves forwards when the control switch (4.5) drives the grapple assembly (4.1) to clamp; when the grapple assembly (4.1) is released, the side plate moves backwards;
the protection switch (4.4) is provided with a blocking column, and the blocking column stretches out to prevent the side plate from moving backwards when the protection switch (4.4) is started; when the protective switch (4.4) is closed, the blocking column is retracted, and the side plate can move backwards.
7. The automobile crash test dummy chest calibration apparatus as defined in claim 1 wherein said release mechanism assembly (4) further comprises a grapple mounting bracket (4.2) and a quick release latch (4.3);
the grapple mounting bracket (4.2) is used for mounting the grapple assembly (4.1), the control switch (4.5) and the pin shaft (4.7);
the quick-release bolt (4.3) is arranged on the grapple mounting bracket (4.2) and is used for fixing the grapple assembly (4.1); the quick-release bolt (4.3) can clamp or release the impact hammer (5) only after being disassembled, and the grapple assembly (4.1) is assembled.
8. The automobile crash test dummy chest calibration apparatus according to claim 1, characterized in that the automobile crash test dummy chest calibration apparatus further comprises an electronic control system (6);
the test platform (9) can be driven by the electric control system (6) to adjust the height.
9. The automobile crash test dummy chest calibration apparatus according to claim 8, characterized in that the automobile crash test dummy chest calibration apparatus further comprises a buffer rack (8);
the buffer net rack (8) is fixedly arranged at the rear side of the test platform (9) and can lift up and down along with the test platform (9);
the buffering net rack (8) comprises a buffering net, the dummy can fall to the buffering net after being impacted by the impact hammer (5), and the buffering net can slow down the impact force and protect the tested dummy.
10. The automobile crash test dummy chest calibration apparatus according to claim 1, characterized in that the automobile crash test dummy chest calibration apparatus further comprises a lifting platform car (7);
the lifting platform car (7) can freely move and adjust the height, is arranged at the side end of the test platform (9) and is used for supporting a dummy in the side collision test of the dummy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321242141.5U CN219830667U (en) | 2023-05-22 | 2023-05-22 | Dummy chest calibration equipment for automobile crash test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321242141.5U CN219830667U (en) | 2023-05-22 | 2023-05-22 | Dummy chest calibration equipment for automobile crash test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219830667U true CN219830667U (en) | 2023-10-13 |
Family
ID=88281329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321242141.5U Active CN219830667U (en) | 2023-05-22 | 2023-05-22 | Dummy chest calibration equipment for automobile crash test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219830667U (en) |
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2023
- 2023-05-22 CN CN202321242141.5U patent/CN219830667U/en active Active
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