CN107907348B - Automobile rear protection testing device and automobile rear protection testing equipment - Google Patents
Automobile rear protection testing device and automobile rear protection testing equipment Download PDFInfo
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- CN107907348B CN107907348B CN201711405969.7A CN201711405969A CN107907348B CN 107907348 B CN107907348 B CN 107907348B CN 201711405969 A CN201711405969 A CN 201711405969A CN 107907348 B CN107907348 B CN 107907348B
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- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 230000007246 mechanism Effects 0.000 claims abstract description 59
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 32
- 238000013016 damping Methods 0.000 claims description 24
- 239000003638 chemical reducing agent Substances 0.000 claims description 16
- 230000000994 depressogenic effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 17
- 230000035939 shock Effects 0.000 description 13
- 206010039203 Road traffic accident Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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Abstract
The invention provides an automobile rear protection testing device and automobile rear protection testing equipment, and relates to the technical field of automobile detection. This protection testing arrangement behind car includes: the two guide rails are arranged in parallel and are relatively fixed; the sliding plate is slidably arranged on the two guide rails; the first driving mechanism is arranged on the sliding plate and used for driving the sliding plate to reciprocate in the length direction of the two guide rails; the support frame is fixedly arranged on one side, far away from the guide rail, of the sliding plate; the first hydraulic oil cylinder is movably arranged on the support frame and is parallel to the width direction of the guide rail; and at least part of the second driving mechanism is fixedly arranged on the support frame and used for driving the first hydraulic cylinder to move in the height direction of the support frame. The automobile rear protection testing device is reasonable in structure, and can comprehensively detect the automobile rear protection, and the detection result is accurate.
Description
Technical Field
The invention relates to the technical field of automobile detection, in particular to an automobile rear protection testing device and automobile rear protection testing equipment.
Background
According to statistics, among various traffic accidents, the rear-end traffic accident is the most common one. The rear-end collision of a car into the rear of a truck is a very dangerous form of traffic accident, often causing serious deformation of the front of a passenger car and death of occupants in the car. The rear protection device can prevent serious traffic accidents when rear collision occurs, and the national standard GB11567-2017 'requirements for side and rear lower protection of automobiles and trailers' provides technical requirements for rear lower protection of automobiles and trailers, which is a national mandatory standard which not only provides detailed regulations on the installation size, structure and the like of the rear protection of automobiles and trailers, but also requires that the rear protection device has certain blocking capability for rear-end collision vehicles so as to prevent penetration collision. Therefore, when detecting a vehicle, the vehicle detection mechanism needs to detect the rear guard of the vehicle according to the national standard.
In the existing rear protection device detection test, most of the detection tests depend on workers to detect the installation size and strength of the rear protection device, the detection means are complex, and the detection data are not accurate enough, so that the rear protection device of the vehicle cannot be comprehensively detected according to the standard.
Disclosure of Invention
The invention aims to provide an automobile rear protection testing device which is reasonable in structure, can detect the automobile rear protection in multiple directions and ensures the detection accuracy.
Another object of the present invention is to provide an apparatus for testing automobile rear protection, which can detect an individual automobile rear protection, and has an accurate detection result.
Embodiments of the present invention are implemented as follows:
an automotive rear protection testing device comprising:
the two guide rails are arranged in parallel and are fixed relatively;
the sliding plate is slidably arranged on the two guide rails;
the first driving mechanism is arranged on the sliding plate and used for driving the sliding plate to reciprocate in the length direction of the two guide rails;
the support frame is fixedly arranged on one side, far away from the guide rail, of the sliding plate;
the first hydraulic oil cylinder is movably arranged on the support frame and is parallel to the width direction of the guide rail;
the second driving mechanism is at least partially fixedly arranged on the support frame and used for driving the first hydraulic cylinder to move in the height direction of the support frame;
the positioning mechanism is arranged at the front end of the first hydraulic oil cylinder and used for fixing the automobile.
In an alternative embodiment of the present invention, the first driving mechanism includes:
the first motor is fixedly arranged on the sliding plate;
the speed reducer is fixedly arranged on the sliding plate, the input end of the speed reducer is in transmission connection with the output shaft of the first motor, and the output end of the speed reducer penetrates through the sliding plate and stretches into the space between the two guide rails;
the gear is sleeved on the output end of the speed reducer and rotates synchronously with the output end of the speed reducer;
one of the guide rail inner side walls forms a first rack extending along the length direction of the guide rail, and the first rack is meshed with the gear.
In an alternative embodiment of the present invention, the automobile rear protection testing device further includes:
the damping mechanism is at least partially connected with a piston rod of the first hydraulic oil cylinder;
the connecting piece is fixedly connected to one end, far away from the first hydraulic oil cylinder, of the damping mechanism;
and the pressurizing block is fixedly connected to one end, far away from the damping mechanism, of the connecting piece.
In an alternative embodiment of the present invention, the automobile rear protection testing device further includes:
the first range sensor, the pressing piece keep away from one side of connecting piece forms the orientation the sunken depressed part of connecting piece, the first range sensor set up in the depressed part and be used for detecting the deformation volume of protection behind the car.
In an alternative embodiment of the present invention, the damping mechanism includes:
the shell is provided with a containing cavity with one end being an open end and the other end being a closed end, and one end of the shell is fixedly connected with the connecting piece;
the plurality of guide posts are fixedly arranged at one end, far away from the first hydraulic oil cylinder, of the shell and are parallel to a piston rod of the first hydraulic oil cylinder;
the damping blocks are in one-to-one correspondence with the guide posts, are arranged in the accommodating cavity, and one end of each damping block is connected with the other end of each guide post;
the second sliding piece is arranged in the accommodating cavity in a sliding mode and is connected with one end, close to the first hydraulic oil cylinder, of the damping block, and a piston rod of the first hydraulic oil cylinder is fixedly connected with one side, far away from the damping block, of the second sliding piece.
In an alternative embodiment of the present invention, the automobile rear protection testing device further includes:
the sliding assembly is at least partially slidably arranged on the supporting frame and moves along the height direction of the supporting frame, and the first hydraulic oil cylinder is fixedly arranged on the sliding assembly.
In an alternative embodiment of the present invention, the support frame includes:
the sliding part is in sliding connection with at least part of the sliding assembly, a second rack is formed on the first side of the sliding part, a through hole is formed in at least part of the sliding assembly so that part of the second rack in the sliding assembly can be relatively exposed, a rotating piece is rotatably arranged in the through hole, and a third rack meshed with the second rack is arranged on the side, corresponding to the second rack, of the rotating piece;
the automobile rear protection testing device is provided with a non-moving state in which the second rack is meshed with the third rack so that the sliding component is fixed relative to the supporting frame, and a moving state in which the second rack is separated from the third rack so that the sliding component slides relative to the supporting frame.
In an alternative embodiment of the present invention, the second driving mechanism includes:
the second hydraulic oil cylinder is fixedly arranged on one side, far away from the sliding plate, of the supporting frame, and a piston rod of the second hydraulic oil cylinder extends into the supporting frame and is fixedly connected with at least part of the sliding assembly.
In an alternative embodiment of the present invention, the support frame further includes:
the fixed part is fixedly arranged on one side, far away from the sliding plate, of the support frame, and at least part of the second hydraulic cylinder is fixedly arranged on one side, close to the sliding plate, of the fixed part;
the automobile rear protection testing device further comprises:
and the second ranging sensor is arranged on one side of the fixed part, which is close to the sliding plate, and is used for detecting the minimum distance between the sliding assembly and the fixed part.
The embodiment of the invention also provides automobile rear protection test equipment, which comprises:
the two guide rails are arranged in parallel and are fixed relatively;
the sliding plate is slidably arranged on the two guide rails;
the first driving mechanism is arranged on the sliding plate and used for driving the sliding plate to reciprocate in the length direction of the two guide rails;
the support frame is fixedly arranged on one side, far away from the guide rail, of the sliding plate;
the first hydraulic oil cylinder is movably arranged on the support frame and is parallel to the width direction of the guide rail;
the second driving mechanism is at least partially fixedly arranged on the support frame and used for driving the first hydraulic cylinder to move in the height direction of the support frame;
the fixing mechanism is used for fixing the automobile rear protection and is arranged at the front end of the first hydraulic oil cylinder.
The embodiment of the invention has the beneficial effects that: the automobile rear protection testing device can comprehensively and intelligently detect the rear protection device, solves the problems of inaccurate detection data and complex detection process in the existing detection, and accordingly ensures that the automobile rear protection device meets the national standard requirements.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an automotive rear protection testing device according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of the rear protection testing device for an automobile according to embodiment 1 of the present invention after the positioning mechanism is removed;
FIG. 3 is a schematic view of the first view of FIG. 2;
FIG. 4 is a schematic view of the structure of FIG. 2 from a second perspective;
FIG. 5 is a schematic view of the third view of FIG. 2;
FIG. 6 is a schematic view of the shock absorbing mechanism of FIG. 1;
FIG. 7 is a schematic view of a positioning mechanism;
FIG. 8 is a schematic view of another view of FIG. 7;
fig. 9 is a schematic structural diagram of an automotive rear protection test device according to embodiment 2 of the present invention;
fig. 10 is a schematic structural view of the fixing mechanism in fig. 9.
Icon: 100-guide rails; 101-a first rack; 110-a sliding plate; 120-supporting frames; 121-a sliding part; 130-a first motor; 140-speed reducer; 141-a gear; 151-a shock absorbing mechanism; 152-a connector; 153-pressurizing the block; 154-a first ranging sensor; 160-a sliding assembly; 161-body; 162-connecting plates; 163-rotating member; 164-a through hole; 170-a second hydraulic cylinder; 180-a first hydraulic cylinder; 190-a fixing part; 200-a second ranging sensor; 300-a first upright; 310-a first slider; 320-fixing piece; 330-a second motor; 340-reel; 400-a second upright; 410-a fixed plate; 411-connecting holes; 1211-a second rack; 1511-a housing; 1512-guide posts; 1513-damper blocks; 1514-a second slider; 3201-locating holes.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, the terms "upper," "inner," "outer," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship conventionally put in use of the inventive product, only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
Example 1
Referring to fig. 1, 2, 3 and 4, an embodiment of the present invention provides an automobile rear protection testing device, which includes two guide rails 100, a sliding plate 110, a sliding assembly 160, a first driving mechanism, a supporting frame 120, a first hydraulic cylinder 180, a second driving mechanism, a positioning mechanism, a first ranging sensor 154 and a second ranging sensor 200.
Referring to fig. 3, two guide rails 100 are disposed in parallel and fixed with respect to each other.
In other words, the two rails 100 are parallel and opposite, i.e. one end of one rail 100 is aligned with one end of the other rail 100 and the other end is aligned with the other end of the other rail 100.
It should be noted that the guide rail 100 may be mounted on the ground or other components, such as a table or a floor, by bolts.
In the present embodiment, the sliding plate 110 has a plate-shaped structure, which is slidably mounted on the two guide rails 100, so that the sliding plate 110 can slide on the two guide rails 100 along the length direction of the guide rails 100 under the action of external force.
In the present embodiment, the first driving mechanism is provided on the slide plate 110 and is used to drive the slide plate 110 to reciprocate in the length direction of the two guide rails 100.
Referring to fig. 3, 4 and 5, in detail, the first driving mechanism includes a first motor 130, a decelerator 140, a gear 141, and a first rack gear 101 formed on one of the guide rails 100.
The first motor 130 is fixedly mounted on the sliding plate 110, the speed reducer 140 is fixedly mounted on the sliding plate 110 and is adjacent to the first motor 130, an input end of the speed reducer 140 is in transmission connection with an output shaft of the first motor 130, an output end of the speed reducer 140 penetrates through the sliding plate 110 and extends into a space between the two guide rails 100, and a gear 141 is sleeved on an output end of the speed reducer 140 and rotates synchronously with the output end of the speed reducer 140.
The first rack 101 is formed on the inner sidewall of one of the guide rails 100, the first rack 101 extends along the length direction of the guide rail 100, and the first rack 101 is meshed with the gear 141, thereby, the gear 141 is driven to rotate by the first motor 130, so that the gear 141 reciprocates along the length direction of the first rack 101, and the sliding plate 110 is driven to move on the two guide rails 100.
In this embodiment, the supporting frame 120 is a box-type structure, and has a rectangular parallelepiped shape.
The support bracket 120 includes a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall.
The first side wall is opposite to the third side wall, and the second side wall is opposite to the third side wall.
The opening of the first side wall corresponds to the first opening of the third side wall, and the correspondence means that the positions and the sizes of the first opening of the first side wall and the first opening of the third side wall are matched.
In this embodiment, the first hydraulic cylinder 180 is movably disposed between two first openings of the support frame 120, and of course, two ends of the first hydraulic cylinder 180 can also protrude relative to two first openings of the support frame 120, the first hydraulic cylinder 180 is used for detecting the pressure bearing capability of the rear protection of the automobile, and the installation direction of the first hydraulic cylinder 180 is parallel to the width direction of the guide rail 100.
Referring to fig. 3, in this embodiment, the rear protection testing device for an automobile further includes a shock absorbing mechanism 151, a connecting member 152 and a pressing block 153, wherein the shock absorbing mechanism 151 is connected with a piston rod of the first hydraulic cylinder 180, one end of the shock absorbing mechanism 151 far away from the first hydraulic cylinder 180 is connected with the connecting member 152, one end of the connecting member 152 far away from the shock absorbing mechanism 151 is connected with the pressing block 153, and the pressing block 153 is used for directly contacting with the rear protection of the automobile so as to test the rear protection of the automobile.
It should be noted that the connecting member 152 may be a rectangular tube.
Referring to fig. 6, in the present embodiment, the shock absorbing mechanism 151 includes a housing 1511, a plurality of guide posts 1512, a plurality of shock absorbing blocks 1513, and a second slider 1514.
The shape of the casing 1511 may be a cuboid, where the casing 1511 has a receiving cavity with an open end at one end and a closed end at the other end, and one end of the casing 1511 is connected to the connector 152, where a second opening is provided at the open end, and the area of the second opening is smaller than that of the closed end.
Further, one end of the plurality of guide posts 1512 is fixedly disposed at an end of the housing 1511 far away from the first hydraulic cylinder 180, and the guide posts 1512 are parallel to the piston rod of the first hydraulic cylinder 180. The number of shock absorbing blocks 1513 is consistent with the number of the guide columns 1512, the shape of the shock absorbing blocks 1513 can be cylindrical or prismatic, the shock absorbing blocks 1513 are arranged in the accommodating cavity, one end of each shock absorbing block 1513 is connected with the other end of the guide column 1512, and the shock absorbing blocks 1513 are coaxial with the guide column 1512.
The second sliding member 1514 is a plate-shaped structure, which is disposed in the accommodating cavity and is adapted to the vertical section of the accommodating cavity, so that the second sliding member 1514 can slide in the accommodating cavity, in addition, one end of the shock-absorbing block 1513, which is close to the first hydraulic cylinder 180, is abutted against the second sliding member 1514, and a piston rod of the first hydraulic cylinder 180 is fixedly connected with one side of the second sliding member 1514, which is far away from the shock-absorbing block 1513, so that rigid contact between the first hydraulic cylinder 180 and the rear protection of the automobile can be avoided through the shock-absorbing mechanism 151, and the accuracy of testing is prevented from being influenced, so that the accuracy of the later testing is ensured.
Further, the pressing block 153 is in a plate structure, a concave portion which is concave towards the connecting piece 152 is disposed at one side of the pressing block 153 far away from the connecting piece 152, the first distance measuring sensor 154 is disposed in the concave portion and is used for detecting the deformation of the rear protection part of the automobile, the concave portion can be a blind hole, the cross section of the concave portion can be a circle, a rectangle or other shapes, it is noted that the first distance measuring sensor 154 is located in the concave portion to avoid contact with the rear protection part of the automobile, in an initial state, when the pressing block 153 is separated from the rear protection part of the automobile by a certain distance, the first distance measuring sensor 154 is used for measuring the distance, and the first hydraulic cylinder 180 is used for measuring the distance between the pressing block 153 and the rear protection test part of the automobile and returning to the initial state, and the distance is defined as a second distance, so that the difference between the second distance and the first distance is the deformation of the rear protection part of the automobile, and the deformation of the rear protection part of the automobile can be fed back in real time through the first distance measuring sensor 154.
Referring to fig. 3 and 4, in the present embodiment, the first hydraulic cylinder 180 is slidably connected to the support frame 120 through a sliding assembly 160, and the sliding assembly 160 includes a body 161 and a connecting plate 162.
The number of the bodies 161 is two, the two bodies 161 are correspondingly sleeved on two sides of the support frame 120, the bodies 161 are in sliding connection with the support frame 120, and the connecting plates 162 are respectively connected with the two bodies 161, so that the two bodies 161 form a whole.
The first hydraulic cylinder 180 penetrates the two bodies 161 and is parallel to the connecting plate 162, and the first hydraulic cylinder 180 is fixedly connected with the bodies 161, so that when the bodies 161 move relative to the height direction of the support frame 120, the first hydraulic cylinder 180 can also move along with the bodies.
Referring to fig. 3, in the present embodiment, the rear protection testing device further includes a fixing portion 190, and the fixing portion 190 is substantially U-shaped and is installed at an end of the support frame 120 away from the sliding plate 110.
In this embodiment, in order to enable the first hydraulic cylinder 180 to detect the rear protection of the automobile in multiple directions, the second driving mechanism is provided and is used to drive the first hydraulic cylinder 180 to move in the height direction of the support frame 120.
Referring to fig. 3, in particular, the second drive mechanism includes a second hydraulic ram 170. The second hydraulic cylinder 170 is fixedly connected with the fixing portion 190 and is located between the fixing portion 190 and the connecting plate 162, a piston rod of the second hydraulic cylinder 170 is fixedly connected with the fixing portion 190, and the second hydraulic cylinder 170 can drive the first hydraulic cylinder 180 to reciprocate in the height direction of the support frame 120.
Referring to fig. 2 and 3, in this embodiment, when the second hydraulic cylinder 170 drives the first hydraulic cylinder 180 to reach the test height, the support frame 120 further includes a sliding portion 121 to fix the sliding assembly 160 relative to the support frame 120. Wherein the body 161 is slidably connected with the sliding portion 121, the first side of the sliding portion 121 forms two second racks 1211, namely, the two second racks 1211 are located at one side of the supporting frame 120 in the width direction of the guide rail 100, in addition, the body 161 is provided with a through hole 164, the through hole 164 is rectangular, the through hole 164 enables a part of the second racks 1211 in the body 161 to be relatively exposed, and a rotating member 163 is rotatably arranged in the through hole 164, wherein the rotating member 163 realizes rotation through a rotating shaft, the rotating shaft can be arranged at one end of the through hole 164 near the bottom thereof, the rotating shaft extends along the width direction of the through hole 164, the rotating member 163 is in a plate-shaped structure, the rotating shaft passes through the rotating member 163 and is respectively connected with two side walls in the through hole 164 in a rotating manner, the shape of the rotating member 163 and the through hole 164 is adapted to be smaller than the through hole 164, and one side of the rotating member 163 corresponding to the second racks 1211 is provided with a third meshed with the second racks 1211 at this time, thereby, when the rotating member 163 rotates and enables the third racks 1211 to be meshed with the second racks 1211, the sliding assembly is relatively firm, and the supporting frame 120 is relatively moved, and the sliding assembly is in a relatively firm state, and the rack 120 is kept in a relatively non-firm state, and the supporting frame 120; after the third rack is separated from the second rack 1211, the second hydraulic cylinder 170 can drive the sliding assembly 160 to move up and down along the supporting frame 120, and at this time, the sliding assembly 160 is in a moving state relative to the supporting frame 120.
Referring to fig. 2, in the present embodiment, a second ranging sensor 200 is installed at one side of the fixed part 190 near the sliding plate 110 and is used to detect the minimum distance between the sliding assembly 160 and the fixed part 190, thereby detecting the height of the center of the pressing block 153 from the ground in real time. The distance between the connection plate 162 of the sliding assembly 160 and the center of the pressing block 153 is constant, defined as a third distance; the distance between the fixing portion 190 and the ground is also constant, and is defined as a fourth distance; the second distance measuring sensor 200 may measure the distance between the fixing portion 190 and the connection plate 162 in real time, and define the distance as a fifth distance, so that the real-time distance between the center of the pressing block 153 and the ground can be obtained, where the sixth distance is defined as a fourth distance-a third distance-a fifth distance, and the sixth distance is defined as the height of the center of the pressing block 153 from the ground. When the height (i.e., the sixth distance) of the center of the pressurizing block 153 from the ground is greater than the maximum height of the center of the point of application from the ground when the post-protection detection test is performed, which is specified by the national standard, the second ranging sensor 200 will trigger an alarm of the car post-protection test device.
Referring to fig. 7 and 8, in the present embodiment, the positioning mechanism includes two first columns 300, two first sliders 310, a third driving mechanism, and two fixing members 320.
Specifically, two first columns 300 are disposed opposite to each other, and two first columns 300 are fixed relative to the ground. The two first sliding pieces 310 are in one-to-one correspondence with the two first upright posts 300, the first sliding pieces 310 are sleeved on the outer peripheral surface of the first upright posts 300 and can slide relative to the first upright posts 300, and the two first sliding pieces 310 are oppositely arranged.
The third drive mechanism includes a second motor 330, a reel 340, and a wire rope.
The number of the second motors 330 and the number of the reels 340 are two, each first upright 300 is provided with a second motor 330 and a reel 340, the second motor 330 is arranged at the top end of the first upright 300, the reels 340 are sleeved on the output shafts of the second motors 330 and rotate synchronously with the output shafts, in addition, two connecting parts are arranged on each first sliding part 310, and the reels 340 can be driven to rotate through the second motors 330 by respectively penetrating the steel wire ropes through the two connecting parts and winding the other ends of the steel wire ropes on the reels 340, so that the first sliding parts 310 are driven to slide relative to the first upright 300.
Referring to fig. 7 and 8, in this embodiment, the fixing members 320 are in a block structure, one of the fixing members 320 is disposed on one of the first sliding members 310, the other fixing member 320 is disposed on the other first sliding member 310, two fixing members 320 are disposed between the two first pillars 300, positioning holes 3201 are respectively disposed on the two fixing members 320, the positioning holes 3201 are L-shaped, and the positioning holes 3201 of the two fixing members 320 are used for penetrating a wire rope, so that the wire rope is used for fixing an auxiliary beam of the chassis of the automobile, and thus the movement of the automobile towards the direction of the head of the automobile is avoided.
During detection, the automobile can be fixed through the positioning mechanism, and then the first hydraulic cylinder 180 is utilized to detect the rear protection of the automobile.
It should be noted that, the automobile rear protection testing device in this embodiment is used for detecting the rear protection when the automobile is mounted on the automobile.
In sum, this protection testing arrangement behind car is rational in infrastructure, and it can be comprehensive, intelligent detect back protector, and its testing result is accurate.
Example 2
Referring to fig. 9 and 10, the embodiment of the present invention further provides an apparatus for testing the rear protection of an automobile, which includes a fixing mechanism, two guide rails 100, a sliding plate 110, a first driving mechanism, a supporting frame 120, a first hydraulic cylinder 180, and a second driving mechanism.
The positions and connection relationships of the two guide rails 100, the sliding plate 110, the first driving mechanism, the supporting frame 120, the first hydraulic cylinder 180, and the second driving mechanism are the same as those in the above embodiment 1, and are not described here again.
Referring to fig. 9 and 10, in the present embodiment, the fixing mechanism includes two second columns 400 and two fixing plates 410.
The two second upright posts 400 are oppositely arranged, the two second upright posts 400 are fixed relative to the ground, and the front end of the first hydraulic cylinder 180 is close to the two second upright posts 400, namely, when the piston rod of the first hydraulic cylinder 180 stretches out, the piston rod of the first hydraulic cylinder 180 can stretch into the space between the two second upright posts 400, in addition, the fixing plate 410 is fixedly connected to the top of the second upright posts 400, the two fixing plates 410 are oppositely arranged, and a plurality of connecting holes 411 are respectively formed in the two fixing plates 410, so that the automobile rear protection can be mounted on the fixing plates 410 through bolts.
It should be noted that, the test device for the rear protection of the automobile in this embodiment is for detecting the rear protection after being detached from the automobile. During detection, the detached automobile rear guard is mounted on the fixing plate 410, and then the first hydraulic oil cylinder 180 is controlled, so that the automobile rear guard can be comprehensively and intelligently detected, and the detection accuracy is ensured.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An automotive rear protection testing device, comprising:
the two guide rails are arranged in parallel and are fixed relatively;
the sliding plate is slidably arranged on the two guide rails;
the first driving mechanism is arranged on the sliding plate and used for driving the sliding plate to reciprocate in the length direction of the two guide rails;
the support frame is fixedly arranged on one side, far away from the guide rail, of the sliding plate;
the first hydraulic oil cylinder is movably arranged on the support frame and is parallel to the width direction of the guide rail;
the second driving mechanism is at least partially fixedly arranged on the support frame and used for driving the first hydraulic cylinder to move in the height direction of the support frame;
the positioning mechanism is arranged at the front end of the first hydraulic cylinder and is used for fixing the automobile;
the automobile rear protection testing device further comprises: the damping mechanism is at least partially connected with a piston rod of the first hydraulic oil cylinder; the connecting piece is fixedly connected to one end, far away from the first hydraulic oil cylinder, of the damping mechanism; the pressing block is fixedly connected to one end, far away from the damping mechanism, of the connecting piece;
the damping mechanism includes: the shell is provided with a containing cavity with one end being an open end and the other end being a closed end, and one end of the shell is fixedly connected with the connecting piece; the plurality of guide posts are fixedly arranged at one end, far away from the first hydraulic oil cylinder, of the shell and are parallel to a piston rod of the first hydraulic oil cylinder; the damping blocks are in one-to-one correspondence with the guide posts, are arranged in the accommodating cavity, and one end of each damping block is connected with the other end of each guide post; the second sliding piece is arranged in the accommodating cavity in a sliding mode and is connected with one end, close to the first hydraulic oil cylinder, of the damping block, and a piston rod of the first hydraulic oil cylinder is fixedly connected with one side, far away from the damping block, of the second sliding piece.
2. The vehicle rear protection testing device of claim 1, wherein the first drive mechanism comprises:
the first motor is fixedly arranged on the sliding plate;
the speed reducer is fixedly arranged on the sliding plate, the input end of the speed reducer is in transmission connection with the output shaft of the first motor, and the output end of the speed reducer penetrates through the sliding plate and stretches into the space between the two guide rails;
the gear is sleeved on the output end of the speed reducer and rotates synchronously with the output end of the speed reducer;
one of the guide rail inner side walls forms a first rack extending along the length direction of the guide rail, and the first rack is meshed with the gear.
3. The automobile rear protection testing device of claim 1, further comprising:
the first range sensor, the pressing piece keep away from one side of connecting piece forms the orientation the sunken depressed part of connecting piece, the first range sensor set up in the depressed part and be used for detecting the deformation volume of protection behind the car.
4. The automobile rear protection testing device of claim 1, further comprising:
the sliding assembly is at least partially slidably arranged on the supporting frame and moves along the height direction of the supporting frame, and the first hydraulic oil cylinder is fixedly arranged on the sliding assembly.
5. The apparatus of claim 4, wherein the support frame comprises:
the sliding part is in sliding connection with at least part of the sliding assembly, a second rack is formed on the first side of the sliding part, a through hole is formed in at least part of the sliding assembly so that part of the second rack in the sliding assembly can be relatively exposed, a rotating piece is rotatably arranged in the through hole, and a third rack meshed with the second rack is arranged on the side, corresponding to the second rack, of the rotating piece;
the automobile rear protection testing device is provided with a non-moving state in which the second rack is meshed with the third rack so that the sliding component is fixed relative to the supporting frame, and a moving state in which the second rack is separated from the third rack so that the sliding component slides relative to the supporting frame.
6. The vehicle rear protection testing device of claim 4, wherein the second drive mechanism comprises:
the second hydraulic oil cylinder is fixedly arranged on one side, far away from the sliding plate, of the supporting frame, and a piston rod of the second hydraulic oil cylinder extends into the supporting frame and is fixedly connected with at least part of the sliding assembly.
7. The automobile rear protection testing device of claim 6, wherein the support frame further comprises:
the fixed part is fixedly arranged on one side, far away from the sliding plate, of the support frame, and at least part of the second hydraulic cylinder is fixedly arranged on one side, close to the sliding plate, of the fixed part;
the automobile rear protection testing device further comprises:
and the second ranging sensor is arranged on one side of the fixed part, which is close to the sliding plate, and is used for detecting the minimum distance between the sliding assembly and the fixed part.
8. An automotive rear protection test apparatus, comprising:
the two guide rails are arranged in parallel and are fixed relatively;
the sliding plate is slidably arranged on the two guide rails;
the first driving mechanism is arranged on the sliding plate and used for driving the sliding plate to reciprocate in the length direction of the two guide rails;
the support frame is fixedly arranged on one side, far away from the guide rail, of the sliding plate;
the first hydraulic oil cylinder is movably arranged on the support frame and is parallel to the width direction of the guide rail;
the second driving mechanism is at least partially fixedly arranged on the support frame and used for driving the first hydraulic cylinder to move in the height direction of the support frame;
the fixing mechanism is used for fixing the rear protection of the automobile and is arranged at the front end of the first hydraulic cylinder;
the automobile rear protection test equipment further comprises: the damping mechanism is at least partially connected with a piston rod of the first hydraulic oil cylinder; the connecting piece is fixedly connected to one end, far away from the first hydraulic oil cylinder, of the damping mechanism; the pressing block is fixedly connected to one end, far away from the damping mechanism, of the connecting piece;
the damping mechanism includes: the shell is provided with a containing cavity with one end being an open end and the other end being a closed end, and one end of the shell is fixedly connected with the connecting piece; the plurality of guide posts are fixedly arranged at one end, far away from the first hydraulic oil cylinder, of the shell and are parallel to a piston rod of the first hydraulic oil cylinder; the damping blocks are in one-to-one correspondence with the guide posts, are arranged in the accommodating cavity, and one end of each damping block is connected with the other end of each guide post; the second sliding piece is arranged in the accommodating cavity in a sliding mode and is connected with one end, close to the first hydraulic oil cylinder, of the damping block, and a piston rod of the first hydraulic oil cylinder is fixedly connected with one side, far away from the damping block, of the second sliding piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711405969.7A CN107907348B (en) | 2017-12-22 | 2017-12-22 | Automobile rear protection testing device and automobile rear protection testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711405969.7A CN107907348B (en) | 2017-12-22 | 2017-12-22 | Automobile rear protection testing device and automobile rear protection testing equipment |
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| CN107907348A CN107907348A (en) | 2018-04-13 |
| CN107907348B true CN107907348B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711405969.7A Active CN107907348B (en) | 2017-12-22 | 2017-12-22 | Automobile rear protection testing device and automobile rear protection testing equipment |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109211586A (en) * | 2018-09-18 | 2019-01-15 | 苏州道捷电子科技有限公司 | Automobile rear protection detection device |
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| CN107907348A (en) | 2018-04-13 |
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Address after: 430000 No. 55 Chaoyang Avenue, Wuhan Economic and Technological Development Zone, Hubei Province Applicant after: CATARC AUTOMOTIVE INSPECTION CENTER (WUHAN) Co.,Ltd. Address before: 430000 No. 55 Chaoyang Avenue, Wuhan Economic and Technological Development Zone, Hubei Province Applicant before: WUHAN HUAWEI SPECIAL PURPOSE VEHICLE INSPECTION CO.,LTD. |
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