EP3741643B1 - Vehicle and vehicle body collision energy absorption device thereof - Google Patents
Vehicle and vehicle body collision energy absorption device thereof Download PDFInfo
- Publication number
- EP3741643B1 EP3741643B1 EP20754132.7A EP20754132A EP3741643B1 EP 3741643 B1 EP3741643 B1 EP 3741643B1 EP 20754132 A EP20754132 A EP 20754132A EP 3741643 B1 EP3741643 B1 EP 3741643B1
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- European Patent Office
- Prior art keywords
- energy absorbing
- vehicle body
- mounting plate
- coupler
- collision energy
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- 238000010521 absorption reaction Methods 0.000 title description 17
- 230000006835 compression Effects 0.000 claims description 22
- 238000007906 compression Methods 0.000 claims description 22
- 230000000694 effects Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G7/00—Details or accessories
- B61G7/10—Mounting of the couplings on the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G11/00—Buffers
- B61G11/16—Buffers absorbing shocks by permanent deformation of buffer element
Definitions
- the present application relates to the technical field of energy absorption safety protection equipment, and in particular to a vehicle and a vehicle body collision energy absorbing device thereof.
- Prior art document Chinese patent application No. CN103625502A discloses a railway vehicle front-end energy absorbing device which comprises an anti-creeping energy absorbing structure, a vehicle hook energy absorbing device, a main energy absorbing structure, and guiding structures.
- the vehicle hook energy absorbing structure is fixedly connected with the main energy absorbing structure through a vehicle hook base, the vehicle hook base is fixedly connected with the front end portion of the main energy absorbing structure, the main energy absorbing structure and the guiding structures are fixedly connected to a rigid wall at the front end of a vehicle body, the guiding structures are located on two sides of the main energy absorbing structure and are in sliding connection with the main energy absorbing structure and the vehicle hook energy absorbing structure, and the anti-creeping energy absorbing structure is fixedly connected to a chassis at the front end of the vehicle body.
- the railway vehicle front-end energy absorbing device the main energy absorbing structure, the vehicle hook energy absorbing structure, and the anti-creeping energy absorbing structure are combined into a whole, the energy absorbing amount of the vehicle front-end energy absorbing device is greatly increased, so that the energy absorbing device can conduct deformation energy absorbing step by step and in order.
- the leading vehicle is subjected to the greatest impact, and the impact on subsequent vehicles gradually reduces.
- an absorbing device with large energy absorption capability is generally arranged on the leading vehicle.
- the coupler When two high-speed trains collide, the coupler is impacted first. In order to absorb the energy generated by train collision as much as possible, it should be ensured that the structure of the coupler can safely and reliably absorb more energy.
- a vehicle body collision energy absorbing device is provided according to the present application, so as to improve the energy absorption effect and ensure the safety of passengers' lives and properties.
- a vehicle including the vehicle body collision energy absorbing device is further provided according to the present application.
- a vehicle body collision energy absorbing device includes a coupler, a coupler mounting plate and a vehicle body structure.
- the coupler includes a coupler body and an expansion pipe that absorbs energy and expands relative to the coupler body.
- the coupler body is arranged on the coupler mounting plate.
- the vehicle body structure is provided with an energy absorbing cavity, and the coupler mounting plate and the expansion pipe are arranged in the energy absorbing cavity.
- the vehicle body collision energy absorbing device further includes a compression energy absorbing unit arranged in the energy absorbing cavity, and a shear pin.
- the vehicle body collision energy absorbing device further includes a locking device that locks the coupler mounting plate relative to the energy absorbing cavity, and a retreat support arranged between the coupler mounting plate and the compression energy absorbing unit, wherein the shear pin connecting the vehicle body structure with the retreat support.
- the retreat support is slidably arranged in the energy absorbing cavity, and is provided with a locking component and a linkage structure.
- the locking component unlocks the locking device after being away from the coupler mounting plate, and the linkage structure has a positioning structure axially positioned with the expansion pipe.
- the locking device is a trapezoidal block which is rotatable relative to the vehicle body structure, an end surface of the coupler mounting plate inclines towards the coupler along a direction of approaching the compression energy absorbing unit;
- a cross section of the trapezoidal block is a right-angled trapezoid
- the vehicle body collision energy absorbing device further includes a position-limiting protrusion arranged at an opening of the energy absorbing cavity and configured to restrict the coupler mounting plate from sliding out of the energy absorbing cavity.
- two position-limiting protrusions are provided and are symmetrically arranged on two sides of the opening of the energy absorbing cavity.
- the linkage structure is a guide pipe that is fixedly connected to the retreat support and penetrates through the compression energy absorbing unit, and the guide pipe is sleeved on the outside of the expansion pipe.
- the rear plate of the energy absorbing cavity is provided with an avoidance hole for the guide pipe and the expansion pipe to pass through.
- the positioning structure of the guide pipe is a stepped surface; and the outer surface of the expansion pipe has a shoulder structure capable of cooperating with the stepped surface.
- two locking devices are provided and are symmetrically arranged at two ends of the coupler mounting plate.
- a vehicle is further provided according to the present application, which includes the vehicle body collision energy absorbing device according to any one of the above aspects.
- the linkage structure has a positioning structure which is axially positioned with the expansion pipe; after the expansion pipe extends outward relative to the coupler body, the expansion pipe drives the guide pipe and the retreat support to slide, and the shear pin breaks, so that the retreat support moves away from the coupler mounting plate, the locking component unlocks the locking device, and the locking device unlocks the coupler mounting plate; and the coupler mounting plate slides in the energy absorbing cavity under the action of the impact force and moves toward the compression energy absorbing unit, and the compression energy absorbing unit is compressed to complete the second energy absorption.
- the vehicle body collision energy absorbing device provided by the present application effectively improves the energy absorption effect and ensures the safety of passengers' lives and properties.
- a vehicle is further provided according to the present application, which includes the vehicle body collision energy absorbing device according to any one of the above aspects. Since the aforementioned vehicle body collision energy absorbing device has the aforementioned technical effects, the vehicle having the aforementioned vehicle body collision energy absorbing device should also have the same technical effects, which will not be repeated here.
- a vehicle body collision energy absorbing device is disclosed according to the present application, so as to improve the energy absorption effect and ensure the safety of passengers' lives and properties.
- a vehicle including the vehicle body collision energy absorbing device is further provided according to the present application.
- a vehicle body collision energy absorbing device provided by the embodiment of the present application includes a coupler 8, a coupler mounting plate 1 and a vehicle body structure 2.
- the coupler 8 includes a coupler body 81 and an expansion pipe 82 that absorbs energy and expands relative to the coupler body 81.
- the coupler body 81 is arranged on the coupler mounting plate 1.
- the vehicle body structure 2 is provided with an energy absorbing cavity, and the coupler mounting plate 1 and the expansion pipe 82 are arranged in the energy absorbing cavity.
- the vehicle body collision energy absorbing device further includes a compression energy absorbing unit 6 arranged in the energy absorbing cavity, a locking device 3 that locks the coupler mounting plate 1 relative to the energy absorbing cavity, a retreat support 5 arranged between the coupler mounting plate 1 and the compression energy absorbing unit 6, and a shear pin 4 connecting the vehicle body structure 2 with the retreat support 5.
- One end of the compression energy absorbing unit 6 abuts against a rear plate of the energy absorbing cavity.
- the retreat support 5 is slidably arranged in the energy absorbing cavity, and is provided with a locking component and a linkage structure.
- the locking component unlocks the locking device 3 after being away from the coupler mounting plate 1, and the linkage structure has a positioning structure axially positioned with the expansion pipe 82.
- the linkage structure has a positioning structure which is axially positioned with the expansion pipe 82; after the expansion pipe 82 extends outward relative to the coupler body 81, the expansion pipe 82 drives the guide pipe 7 and the retreat support 5 to slide, and the shear pin 4 breaks, so that the retreat support 5 moves away from the coupler mounting plate 1, the locking component unlocks the locking device 3, and the locking device 3 unlocks the coupler mounting plate 1; and the coupler mounting plate 1 slides in the energy absorbing cavity under the action of the impact force and moves toward the compression energy absorbing unit 6, and the compression energy absorbing unit 6 is compressed to complete the second energy absorption.
- the vehicle body collision energy absorbing device provided by the embodiment of the present application effectively improves the energy absorption effect and ensures the safety of passengers' lives
- the locking device 3 is a trapezoidal block which is rotatable relative to the vehicle body structure 2.
- An end surface of the coupler mounting plate 1 inclines towards the coupler 8 along a direction of approaching the compression energy absorbing unit 6.
- a large end of the trapezoidal block contacts the retreat support 5, one side surface of the trapezoidal block contacts the end surface of the coupler mounting plate 1, and the other side surface of the trapezoidal block contacts the locking component.
- the trapezoidal block can rotate relative to the vehicle body structure 2 and be separated from the coupler mounting plate 1.
- the other side surface of the trapezoidal block is separated from the locking component, and the trapezoidal block can rotate relative to the vehicle body structure 2, so that one side surface of the trapezoidal block is separated from the end surface of the coupler mounting plate 1, and the coupler mounting plate 1 can move toward the compression energy absorbing unit 6 under the action of impact force.
- the trapezoidal block restricts the movement of the coupler mounting plate 1 when one side surface of the trapezoidal block contacts the end surface of the coupler mounting plate 1.
- the contact between one side surface of the trapezoidal block and the end surface of the coupler mounting plate 1 and the contact between the other side surface of the trapezoidal block and the locking component are both surface contact.
- the cross section of the trapezoidal block is a right-angled trapezoid.
- the oblique sideline of the right-angled trapezoid is located on the side surface of the trapezoidal block in contact with the end surface of the coupler mounting plate 1.
- the right-angle sideline of the right-angled trapezoid is located on the side surface of the trapezoidal block in contact with the locking component.
- the locking component is a position-limiting block provided between the trapezoidal block and the vehicle body structure 2.
- the vehicle body collision energy absorbing device provided by the embodiment of the present application further includes a position-limiting protrusion arranged at an opening of the energy absorbing cavity and configured to restrict the coupler mounting plate 1 from sliding out of the energy absorbing cavity.
- a position-limiting protrusion arranged at an opening of the energy absorbing cavity and configured to restrict the coupler mounting plate 1 from sliding out of the energy absorbing cavity.
- the position-limiting protrusion may have an annular structure and be arranged along the inner wall of the opening of the energy absorbing cavity.
- the linkage structure is a guide pipe 7 that is fixedly connected to the retreat support 5 and penetrates through the compression energy absorbing unit 6, and the guide pipe 7 is sleeved on the outside of the expansion pipe 82.
- the guide pipe 7 provides a guide operation for the expansion pipe 82, which effectively avoids the situation that the expansion pipe 82 is externally located, and further improves the stability of energy absorption.
- the rear plate of the energy absorbing cavity is provided with an avoidance hole for the guide pipe 7 and the expansion pipe 82 to pass through.
- the positioning structure of the guide pipe 7 is a stepped surface.
- the outer surface of the expansion pipe 82 has a shoulder structure capable of cooperating with the stepped surface. It is also applicable that one end of the guide pipe 7 is closed. The axial positioning of the guide pipe 7 and the expansion pipe 82 is completed after the end of the expansion pipe 82 contacts the closed end of the guide pipe 7.
- the distance between the stepped surface of the guide pipe 7 and the shoulder of the expansion pipe 82 is determined according to actual requirements, and is not specifically limited here.
- two locking devices 3 are provided and are symmetrically arranged at two ends of the coupler mounting plate 1.
- a vehicle is further provided by the embodiment of the present application, which includes the vehicle body collision energy absorbing device according to any one of the above aspects. Since the aforementioned vehicle body collision energy absorbing device has the aforementioned technical effects, the vehicle having the aforementioned vehicle body collision energy absorbing device should also have the same technical effects, which will not be repeated here.
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- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
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Description
- The present application claims the priority to
Chinese Patent Application No. 201910141398.3, titled "VEHICLE AND VEHICLE BODY COLLISION ENERGY ABSORBING DEVICE THEREOF", filed with the China National Intellectual Property Administration on February 26, 2019 - The present application claims the priority to
Chinese Patent Application No. 201920244002.3, titled "VEHICLE AND VEHICLE BODY COLLISION ENERGY ABSORBING DEVICE THEREOF", filed with the China National Intellectual Property Administration on February 26, 2019 - The present application relates to the technical field of energy absorption safety protection equipment, and in particular to a vehicle and a vehicle body collision energy absorbing device thereof.
- With the rapid development of China's rail transportation construction, traveling is more convenient, and the harm caused by accidents is also increasing. While improving the reliability of active control, the passive safety of rail vehicles has gradually become the focus of attention. In order to alleviate the huge damage to the vehicle body structure when rail transportation vehicles collide with each other, how to ensure the safety of vehicle collision is worthy of designers' deep consideration. Prior art document Chinese patent application No.
CN103625502A discloses a railway vehicle front-end energy absorbing device which comprises an anti-creeping energy absorbing structure, a vehicle hook energy absorbing device, a main energy absorbing structure, and guiding structures. The vehicle hook energy absorbing structure is fixedly connected with the main energy absorbing structure through a vehicle hook base, the vehicle hook base is fixedly connected with the front end portion of the main energy absorbing structure, the main energy absorbing structure and the guiding structures are fixedly connected to a rigid wall at the front end of a vehicle body, the guiding structures are located on two sides of the main energy absorbing structure and are in sliding connection with the main energy absorbing structure and the vehicle hook energy absorbing structure, and the anti-creeping energy absorbing structure is fixedly connected to a chassis at the front end of the vehicle body. According to the railway vehicle front-end energy absorbing device, the main energy absorbing structure, the vehicle hook energy absorbing structure, and the anti-creeping energy absorbing structure are combined into a whole, the energy absorbing amount of the vehicle front-end energy absorbing device is greatly increased, so that the energy absorbing device can conduct deformation energy absorbing step by step and in order. When rail vehicles collide, the leading vehicle is subjected to the greatest impact, and the impact on subsequent vehicles gradually reduces. Considering the vehicle energy absorption requirements and the actual energy absorption means, an absorbing device with large energy absorption capability is generally arranged on the leading vehicle. - When two high-speed trains collide, the coupler is impacted first. In order to absorb the energy generated by train collision as much as possible, it should be ensured that the structure of the coupler can safely and reliably absorb more energy.
- Therefore, how to improve the energy absorption effect and ensure the safety of passengers' lives and properties is an urgent problem to be solved by those skilled in the art.
- In view of this, a vehicle body collision energy absorbing device is provided according to the present application, so as to improve the energy absorption effect and ensure the safety of passengers' lives and properties. A vehicle including the vehicle body collision energy absorbing device is further provided according to the present application.
- In order to achieve the above objects, the following technical solutions are provided according to the present application.
- A vehicle body collision energy absorbing device includes a coupler, a coupler mounting plate and a vehicle body structure. The coupler includes a coupler body and an expansion pipe that absorbs energy and expands relative to the coupler body. The coupler body is arranged on the coupler mounting plate.
- The vehicle body structure is provided with an energy absorbing cavity, and the coupler mounting plate and the expansion pipe are arranged in the energy absorbing cavity.
- The vehicle body collision energy absorbing device further includes a compression energy absorbing unit arranged in the energy absorbing cavity, and a shear pin. The vehicle body collision energy absorbing device further includes a locking device that locks the coupler mounting plate relative to the energy absorbing cavity, and a retreat support arranged between the coupler mounting plate and the compression energy absorbing unit, wherein the shear pin connecting the vehicle body structure with the retreat support.
- One end of the compression energy absorbing unit abuts against a rear plate of the energy absorbing cavity. The retreat support is slidably arranged in the energy absorbing cavity, and is provided with a locking component and a linkage structure. The locking component unlocks the locking device after being away from the coupler mounting plate, and the linkage structure has a positioning structure axially positioned with the expansion pipe. When the expansion pipe drives a guide pipe and the retreat support to slide, the shear pin breaks.
- Preferably, in the vehicle body collision energy absorbing device, the locking device is a trapezoidal block which is rotatable relative to the vehicle body structure, an end surface of the coupler mounting plate inclines towards the coupler along a direction of approaching the compression energy absorbing unit;
- when the locking device is in a locked state, a large end of the trapezoidal block contacts the retreat support, one side surface of the trapezoidal block contacts the end surface of the coupler mounting plate, and the other side surface of the trapezoidal block contacts the locking component; and
- after the retreat support is separated from the trapezoidal block, the trapezoidal block can rotate relative to the vehicle body structure and be separated from the coupler mounting plate.
- Preferably, in the vehicle body collision energy absorbing device, a cross section of the trapezoidal block is a right-angled trapezoid;
- the oblique sideline of the right-angled trapezoid is located on the side surface of the trapezoidal block in contact with the end surface of the coupler mounting plate; the right-angle sideline of the right-angled trapezoid is located on the side surface of the trapezoidal block in contact with the locking component; and
- the locking component is a position-limiting block provided between the trapezoidal block and the vehicle body structure.
- Preferably, the vehicle body collision energy absorbing device further includes a position-limiting protrusion arranged at an opening of the energy absorbing cavity and configured to restrict the coupler mounting plate from sliding out of the energy absorbing cavity.
- Preferably, in the vehicle body collision energy absorbing device, two position-limiting protrusions are provided and are symmetrically arranged on two sides of the opening of the energy absorbing cavity.
- Preferably, in the vehicle body collision energy absorbing device, the linkage structure is a guide pipe that is fixedly connected to the retreat support and penetrates through the compression energy absorbing unit, and the guide pipe is sleeved on the outside of the expansion pipe.
- Preferably, in the vehicle body collision energy absorbing device, the rear plate of the energy absorbing cavity is provided with an avoidance hole for the guide pipe and the expansion pipe to pass through.
- Preferably, in the vehicle body collision energy absorbing device, the positioning structure of the guide pipe is a stepped surface; and
the outer surface of the expansion pipe has a shoulder structure capable of cooperating with the stepped surface. - Preferably, in the vehicle body collision energy absorbing device, two locking devices are provided and are symmetrically arranged at two ends of the coupler mounting plate.
- A vehicle is further provided according to the present application, which includes the vehicle body collision energy absorbing device according to any one of the above aspects.
- It can be seen from the above technical solutions that, in the vehicle body collision energy absorbing device provided by the present application, when two high-speed trains collide with each other, the coupler is impacted, and the expansion pipe extends outward relative to the coupler body to complete the first energy absorption; moreover, the linkage structure has a positioning structure which is axially positioned with the expansion pipe; after the expansion pipe extends outward relative to the coupler body, the expansion pipe drives the guide pipe and the retreat support to slide, and the shear pin breaks, so that the retreat support moves away from the coupler mounting plate, the locking component unlocks the locking device, and the locking device unlocks the coupler mounting plate; and the coupler mounting plate slides in the energy absorbing cavity under the action of the impact force and moves toward the compression energy absorbing unit, and the compression energy absorbing unit is compressed to complete the second energy absorption. The vehicle body collision energy absorbing device provided by the present application effectively improves the energy absorption effect and ensures the safety of passengers' lives and properties.
- A vehicle is further provided according to the present application, which includes the vehicle body collision energy absorbing device according to any one of the above aspects. Since the aforementioned vehicle body collision energy absorbing device has the aforementioned technical effects, the vehicle having the aforementioned vehicle body collision energy absorbing device should also have the same technical effects, which will not be repeated here.
- For more clearly illustrating embodiments of the present application or technical solutions in the conventional technology, the drawing referred to for describing the embodiments or the conventional technology will be briefly described hereinafter. Apparently, the drawings in the following description are only some examples of the present application, and for those skilled in the art, other drawings may be obtained based on the provided drawings without any creative efforts.
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Figure 1 is a schematic view of a first structure of a vehicle body collision energy absorbing device provided by an embodiment of the present application; -
Figure 2 is a schematic view of a second structure of the vehicle body collision energy absorbing device provided by an embodiment of the present application; -
Figure 3 is a schematic view of a third structure of the vehicle body collision energy absorbing device provided by an embodiment of the present application; and -
Figure 4 is a schematic view of a fourth structure of the vehicle body collision energy absorbing device provided by an embodiment of the present application. - A vehicle body collision energy absorbing device is disclosed according to the present application, so as to improve the energy absorption effect and ensure the safety of passengers' lives and properties. A vehicle including the vehicle body collision energy absorbing device is further provided according to the present application.
- The technical solutions in the embodiments of the present application will be described clearly and completely hereinafter in conjunction with the drawings in the embodiments of the present application. The described embodiments are only a part of the embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all of other embodiments, made by the person skilled in the art without any creative efforts, fall into the scope of the present application.
- Referring to
Figure 1 , a vehicle body collision energy absorbing device provided by the embodiment of the present application includes acoupler 8, acoupler mounting plate 1 and avehicle body structure 2. Thecoupler 8 includes acoupler body 81 and anexpansion pipe 82 that absorbs energy and expands relative to thecoupler body 81. Thecoupler body 81 is arranged on thecoupler mounting plate 1. Thevehicle body structure 2 is provided with an energy absorbing cavity, and thecoupler mounting plate 1 and theexpansion pipe 82 are arranged in the energy absorbing cavity. The vehicle body collision energy absorbing device further includes a compressionenergy absorbing unit 6 arranged in the energy absorbing cavity, alocking device 3 that locks thecoupler mounting plate 1 relative to the energy absorbing cavity, aretreat support 5 arranged between thecoupler mounting plate 1 and the compressionenergy absorbing unit 6, and a shear pin 4 connecting thevehicle body structure 2 with theretreat support 5. One end of the compressionenergy absorbing unit 6 abuts against a rear plate of the energy absorbing cavity. Theretreat support 5 is slidably arranged in the energy absorbing cavity, and is provided with a locking component and a linkage structure. The locking component unlocks thelocking device 3 after being away from thecoupler mounting plate 1, and the linkage structure has a positioning structure axially positioned with theexpansion pipe 82. When theexpansion pipe 82 drives aguide pipe 7 and theretreat support 5 to slide, the shear pin 4 breaks. - In the vehicle body collision energy absorbing device provided by the embodiment of the present application, when two high-speed trains collide with each other, the
coupler 8 is impacted, and theexpansion pipe 82 extends outward relative to thecoupler body 81 to complete the first energy absorption; moreover, the linkage structure has a positioning structure which is axially positioned with theexpansion pipe 82; after theexpansion pipe 82 extends outward relative to thecoupler body 81, theexpansion pipe 82 drives theguide pipe 7 and theretreat support 5 to slide, and the shear pin 4 breaks, so that theretreat support 5 moves away from thecoupler mounting plate 1, the locking component unlocks thelocking device 3, and thelocking device 3 unlocks thecoupler mounting plate 1; and thecoupler mounting plate 1 slides in the energy absorbing cavity under the action of the impact force and moves toward the compressionenergy absorbing unit 6, and the compressionenergy absorbing unit 6 is compressed to complete the second energy absorption. The vehicle body collision energy absorbing device provided by the embodiment of the present application effectively improves the energy absorption effect and ensures the safety of passengers' lives and properties. - As shown in
Figures 2 ,3 and4 , after the shear pin 4 is broken, a firstshear pin portion 41 fixed in thevehicle body structure 2 and a secondshear pin portion 42 fixed in theretreat support 5 are formed. - In this embodiment, the
locking device 3 is a trapezoidal block which is rotatable relative to thevehicle body structure 2. An end surface of thecoupler mounting plate 1 inclines towards thecoupler 8 along a direction of approaching the compressionenergy absorbing unit 6. When thelocking device 3 is in a locked state, a large end of the trapezoidal block contacts theretreat support 5, one side surface of the trapezoidal block contacts the end surface of thecoupler mounting plate 1, and the other side surface of the trapezoidal block contacts the locking component. After theretreat support 5 is separated from the trapezoidal block, the trapezoidal block can rotate relative to thevehicle body structure 2 and be separated from thecoupler mounting plate 1. After theretreat support 5 is away from thecoupler mounting plate 1, the other side surface of the trapezoidal block is separated from the locking component, and the trapezoidal block can rotate relative to thevehicle body structure 2, so that one side surface of the trapezoidal block is separated from the end surface of thecoupler mounting plate 1, and thecoupler mounting plate 1 can move toward the compressionenergy absorbing unit 6 under the action of impact force. - Since the end surface of the
coupler mounting plate 1 inclines toward thecoupler 8 along a direction of approaching the compressionenergy absorbing unit 6, the trapezoidal block restricts the movement of thecoupler mounting plate 1 when one side surface of the trapezoidal block contacts the end surface of thecoupler mounting plate 1. - Preferably, the contact between one side surface of the trapezoidal block and the end surface of the
coupler mounting plate 1 and the contact between the other side surface of the trapezoidal block and the locking component are both surface contact. - In order to further improve stability, the cross section of the trapezoidal block is a right-angled trapezoid. The oblique sideline of the right-angled trapezoid is located on the side surface of the trapezoidal block in contact with the end surface of the
coupler mounting plate 1. The right-angle sideline of the right-angled trapezoid is located on the side surface of the trapezoidal block in contact with the locking component. The locking component is a position-limiting block provided between the trapezoidal block and thevehicle body structure 2. - The vehicle body collision energy absorbing device provided by the embodiment of the present application further includes a position-limiting protrusion arranged at an opening of the energy absorbing cavity and configured to restrict the
coupler mounting plate 1 from sliding out of the energy absorbing cavity. By providing the position-limiting protrusion, the structural stability of thecoupler mounting plate 1 is effectively improved without restricting the normal sliding of thecoupler mounting plate 1 in the energy absorbing cavity. - Further, two position-limiting protrusions are provided and are symmetrically arranged on two sides of the opening of the energy absorbing cavity. Through the above arrangement, the stability is effectively improved. The position-limiting protrusion may have an annular structure and be arranged along the inner wall of the opening of the energy absorbing cavity.
- In this embodiment, the linkage structure is a
guide pipe 7 that is fixedly connected to theretreat support 5 and penetrates through the compressionenergy absorbing unit 6, and theguide pipe 7 is sleeved on the outside of theexpansion pipe 82. Through the above arrangement, theguide pipe 7 provides a guide operation for theexpansion pipe 82, which effectively avoids the situation that theexpansion pipe 82 is externally located, and further improves the stability of energy absorption. - In this embodiment, the rear plate of the energy absorbing cavity is provided with an avoidance hole for the
guide pipe 7 and theexpansion pipe 82 to pass through. Through the above arrangement, theguide pipe 7 and theexpansion pipe 82 can directly pass through the avoidance hole during the process of theguide pipe 7 and theexpansion pipe 82 driving theretreat support 5 to move toward the compressionenergy adsorbing unit 6, the structural stability is effectively improved, and the length requirement of the energy absorbing cavity is reduced, further improving the structural stability. - In order to ensure the axial positioning of the
guide pipe 7 and theexpansion pipe 82, the positioning structure of theguide pipe 7 is a stepped surface. The outer surface of theexpansion pipe 82 has a shoulder structure capable of cooperating with the stepped surface. It is also applicable that one end of theguide pipe 7 is closed. The axial positioning of theguide pipe 7 and theexpansion pipe 82 is completed after the end of theexpansion pipe 82 contacts the closed end of theguide pipe 7. - When the
locking device 3 locks thecoupler mounting plate 1 and theretreat support 5 is in contact with thecoupler mounting plate 1, there is a certain distance between the stepped surface of theguide pipe 7 and the shoulder of theexpansion pipe 82, so that thecoupler mounting plate 1 is further unlocked to complete the second energy absorption operation after theexpansion pipe 82 extends out relative to thecoupler body 81 to complete the first energy absorption. - The distance between the stepped surface of the
guide pipe 7 and the shoulder of theexpansion pipe 82 is determined according to actual requirements, and is not specifically limited here. - Further, two
locking devices 3 are provided and are symmetrically arranged at two ends of thecoupler mounting plate 1. Through the above arrangement, the structural stability of locking thecoupler mounting plate 1 is effectively improved, and the stable sliding of thecoupler mounting plate 1 in the energy absorbing cavity in the unlocked state is also ensured. - A vehicle is further provided by the embodiment of the present application, which includes the vehicle body collision energy absorbing device according to any one of the above aspects. Since the aforementioned vehicle body collision energy absorbing device has the aforementioned technical effects, the vehicle having the aforementioned vehicle body collision energy absorbing device should also have the same technical effects, which will not be repeated here.
- In the present specification, the embodiments are described in a progressive manner. Each embodiment mainly focuses on an aspect different from other embodiments, and reference can be made to these similar parts among the embodiments.
Claims (10)
- A vehicle body collision energy absorbing device, comprising a coupler (8), a coupler mounting plate (1) and a vehicle body structure (2); the coupler (8) comprising a coupler body (81) and an expansion pipe (82) that absorbs energy and expands relative to the coupler body (81), and the coupler body (81) being arranged on the coupler mounting plate (1);wherein, the vehicle body structure (2) is provided with an energy absorbing cavity, and the coupler mounting plate (1) and the expansion pipe (82) are arranged in the energy absorbing cavity;the vehicle body collision energy absorbing device further comprises a compression energy absorbing unit (6) arranged in the energy absorbing cavity, and a shear pin (4),the vehicle body collision energy absorbing device is characterized in that,the vehicle body collision energy absorbing device further comprises a locking device (3) that locks the coupler mounting plate (1) relative to the energy absorbing cavity, and a retreat support (5) arranged between the coupler mounting plate (1) and the compression energy absorbing unit (6), wherein the shear pin (4) connects the vehicle body structure (2) with the retreat support (5); andone end of the compression energy absorbing unit (6) abuts against a rear plate of the energy absorbing cavity; the retreat support (5) is slidably arranged in the energy absorbing cavity and is provided with a locking component and a linkage structure, the locking component unlocks the locking device (3) after being away from the coupler mounting plate (1), and the linkage structure has a positioning structure axially positioned with the expansion pipe (82); and when the expansion pipe (82) drives a guide pipe (7) and the retreat support (5) to slide, the shear pin (4) breaks.
- The vehicle body collision energy absorbing device according to claim 1, wherein the locking device (3) is a trapezoidal block which is rotatable relative to the vehicle body structure (2), an end surface of the coupler mounting plate (1) is inclined towards the coupler (8) along a direction of approaching the compression energy absorbing unit (6);when the locking device (3) is in a locked state, a large end of the trapezoidal block contacts the retreat support (5), one side surface of the trapezoidal block contacts the end surface of the coupler mounting plate (1), and another side surface of the trapezoidal block contacts the locking component; andafter the retreat support (5) is separated from the trapezoidal block, the trapezoidal block is rotatable relative to the vehicle body structure (2) and is separated from the coupler mounting plate (1).
- The vehicle body collision energy absorbing device according to claim 2, wherein a cross section of the trapezoidal block is a right-angled trapezoid;an oblique sideline of the right-angled trapezoid is located on a side surface of the trapezoidal block in contact with the end surface of the coupler mounting plate (1);a right-angle sideline of the right-angled trapezoid is located on the side surface of the trapezoidal block in contact with the locking component; andthe locking component is a position-limiting block provided between the trapezoidal block and the vehicle body structure (2).
- The vehicle body collision energy absorbing device according to claim 1, further comprising a position-limiting protrusion arranged at an opening of the energy absorbing cavity and configured to restrict the coupler mounting plate (1) from sliding out of the energy absorbing cavity.
- The vehicle body collision energy absorbing device according to claim 4, wherein two position-limiting protrusions are provided and are symmetrically arranged on two sides of the opening of the energy absorbing cavity.
- The vehicle body collision energy absorbing device according to claim 1, wherein the linkage structure is a guide pipe (7) that is fixedly connected to the retreat support (5) and penetrates through the compression energy absorbing unit (6), and the guide pipe (7) is sleeved on the outside of the expansion pipe (82).
- The vehicle body collision energy absorbing device according to claim 6, wherein the rear plate of the energy absorbing cavity is provided with an avoidance hole for the guide pipe (7) and the expansion pipe (82) to pass through.
- The vehicle body collision energy absorbing device according to claim 6, wherein the positioning structure of the guide pipe (7) is a stepped surface; and
an outer surface of the expansion pipe (82) has a shoulder structure capable of cooperating with the stepped surface. - The vehicle body collision energy absorbing device according to any one of claims 1 to 8, wherein two locking devices (3) are provided and are symmetrically arranged at two ends of the coupler mounting plate (1).
- A vehicle comprising a vehicle body collision energy absorbing device, wherein the vehicle body collision energy absorbing device is the vehicle body collision energy absorbing device according to any one of claims 1 to 9.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RS20231090A RS64841B1 (en) | 2019-02-26 | 2020-02-25 | Vehicle and vehicle body collision energy absorption device thereof |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920244002.3U CN210126529U (en) | 2019-02-26 | 2019-02-26 | Vehicle and vehicle body collision energy absorption device thereof |
CN201910141398.3A CN109703591A (en) | 2019-02-26 | 2019-02-26 | Vehicle and its car body collision energy absorption device |
PCT/CN2020/076621 WO2020173436A1 (en) | 2019-02-26 | 2020-02-25 | Vehicle and vehicle body collision energy absorption device thereof |
Publications (3)
Publication Number | Publication Date |
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EP3741643A1 EP3741643A1 (en) | 2020-11-25 |
EP3741643A4 EP3741643A4 (en) | 2021-12-29 |
EP3741643B1 true EP3741643B1 (en) | 2023-09-06 |
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EP20754132.7A Active EP3741643B1 (en) | 2019-02-26 | 2020-02-25 | Vehicle and vehicle body collision energy absorption device thereof |
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EP (1) | EP3741643B1 (en) |
HU (1) | HUE063554T2 (en) |
RS (1) | RS64841B1 (en) |
SG (1) | SG11202007588WA (en) |
WO (1) | WO2020173436A1 (en) |
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CN114654405B (en) * | 2022-03-22 | 2024-01-16 | 岚图汽车科技有限公司 | Positioning tool for assembling active tail wing of automobile trunk |
CN116911144B (en) * | 2023-09-11 | 2023-11-21 | 西南交通大学 | Train collision energy management optimization method based on machine learning |
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WO2013079733A1 (en) * | 2011-11-30 | 2013-06-06 | Patentes Talgo, S.L. | Energy absorption system for the caboose of railway vehicles |
CN103625502B (en) * | 2013-10-18 | 2016-05-25 | 中车青岛四方机车车辆股份有限公司 | A kind of rail vehicle front end energy absorption device |
PL226548B1 (en) * | 2014-12-02 | 2017-08-31 | Axtone Spółka Z Ograniczoną Odpowiedzialnością | Device absorbing the energy of railway wagons strikes |
CN105083317B (en) * | 2015-07-24 | 2018-06-12 | 中车青岛四方机车车辆股份有限公司 | A kind of draft gear assemblies and the rail vehicle with the draft gear assemblies |
CN105151075B (en) * | 2015-09-30 | 2018-03-20 | 中车青岛四方机车车辆股份有限公司 | A kind of energy absorption device and the rail vehicle with the energy absorption device |
DE102016205981A1 (en) * | 2016-04-11 | 2017-10-12 | Voith Patent Gmbh | Pull and push device |
DE102016111556A1 (en) * | 2016-06-23 | 2017-12-28 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | track vehicle |
CN106364520B (en) * | 2016-09-28 | 2018-04-13 | 中南大学 | A kind of train collision means of defence and system |
CN106672010A (en) * | 2016-11-22 | 2017-05-17 | 中车长春轨道客车股份有限公司 | Motor train unit head train passive safety protection device |
CN206288027U (en) * | 2016-11-22 | 2017-06-30 | 中车长春轨道客车股份有限公司 | A kind of EMUs head car passive security protector |
KR101898097B1 (en) * | 2016-12-27 | 2018-09-13 | 한국철도기술연구원 | Shock absorber component for connector of railway vehicle |
CN107200034A (en) * | 2017-05-23 | 2017-09-26 | 中车唐山机车车辆有限公司 | Energy-absorbing component and motor-car |
CN207274709U (en) * | 2017-05-23 | 2018-04-27 | 中车唐山机车车辆有限公司 | Protective device and rail vehicle used for rail vehicle |
CN207875666U (en) * | 2017-12-20 | 2018-09-18 | 中车长春轨道客车股份有限公司 | A kind of ink absorption speed and the rail vehicle with the car body |
CN108466631A (en) * | 2018-03-12 | 2018-08-31 | 中车株洲电力机车有限公司 | A kind of buffering energy-absorbing coupler pocket and track train |
CN109703591A (en) * | 2019-02-26 | 2019-05-03 | 中车长春轨道客车股份有限公司 | Vehicle and its car body collision energy absorption device |
-
2020
- 2020-02-25 RS RS20231090A patent/RS64841B1/en unknown
- 2020-02-25 EP EP20754132.7A patent/EP3741643B1/en active Active
- 2020-02-25 WO PCT/CN2020/076621 patent/WO2020173436A1/en active Application Filing
- 2020-02-25 HU HUE20754132A patent/HUE063554T2/en unknown
- 2020-02-25 SG SG11202007588WA patent/SG11202007588WA/en unknown
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SG11202007588WA (en) | 2020-10-29 |
HUE063554T2 (en) | 2024-01-28 |
WO2020173436A1 (en) | 2020-09-03 |
RS64841B1 (en) | 2023-12-29 |
EP3741643A1 (en) | 2020-11-25 |
EP3741643A4 (en) | 2021-12-29 |
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