CN111947943A - Evacuation system for automobile power assembly test - Google Patents
Evacuation system for automobile power assembly test Download PDFInfo
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- CN111947943A CN111947943A CN202010879872.5A CN202010879872A CN111947943A CN 111947943 A CN111947943 A CN 111947943A CN 202010879872 A CN202010879872 A CN 202010879872A CN 111947943 A CN111947943 A CN 111947943A
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention provides a test evacuation system for an automobile power assembly, which comprises: a test platform; an evacuation system pallet truck located on the test platform; the hub supporting mechanism is detachably arranged on the test platform and corresponds to a hub of the test vehicle to be tested; the electric dynamometer is connected with the hub of the test vehicle to be tested through the transmission mechanism; the transmission disconnecting mechanism is arranged corresponding to the transmission mechanism and used for disconnecting the connection between the transmission mechanism and the hub; and the traction mechanism is connected with the test vehicle to be tested and is used for moving the test vehicle to be tested out of the test platform. The evacuation system for the automobile power assembly test can rapidly move the automobile out of the test room to the designated area under the special conditions of smoke generation, spontaneous combustion, combustible gas leakage and the like in the automobile power assembly test, and then carry out the next emergency treatment after the automobile reaches the designated area, thereby ensuring the safety of workers in the test room and buildings in the test room to the maximum extent.
Description
Technical Field
The invention belongs to the technical field of whole automobile test safety, and particularly relates to an automobile power assembly test evacuation system which can be applied to an automobile two-motor, four-motor or six-motor power assembly test.
Background
The automobile power assembly is a component assembly for generating forward power for an automobile, and an automobile power assembly test in a test room mainly examines the automobile power performance, can also examine related parameters such as automobile noise, comfort, emission performance and the like by matching with corresponding test environment and equipment, and is one of indispensable important tests of the automobile. With the rapid development of the new energy automobile industry in China, the production, sales and retention of new energy automobiles are gradually improved, and the related test quantity of the new energy automobiles is also greatly improved. However, the new energy automobile sometimes happens to be charged and spontaneously ignited, travel and spontaneously ignited, collide and spontaneously ignite, soak and spontaneously ignite, stop and spontaneously ignite and the like, and is mainly caused by a lithium battery or a fuel battery of the new energy automobile, and the lithium battery and the fuel battery are power sources of the new energy automobile and are important components of a new energy power assembly, so that a series of danger coefficients of spontaneous combustion of a test automobile or combustible gas liquid leakage and the like are relatively increased in a power assembly test, if the conditions of smoke generation, spontaneous combustion, combustible gas leakage and the like of the automobile occur in the test, the explosion and the fire hazard are easily caused, the safety and the smoothness of the test are ensured, the safety of workers and buildings in the test room are ensured to the maximum extent, and the test automobile which has the dangerous conditions is effectively treated in time is particularly important.
Disclosure of Invention
In view of the above, the invention aims to provide an evacuation system for an automobile power assembly test, so that the test vehicle can be rapidly evacuated from a laboratory under the conditions of smoke generation, spontaneous combustion, combustible gas leakage and the like of the test vehicle in the test, and the safety of laboratory workers and buildings designed in the laboratory is ensured to the maximum extent.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
experimental system of withdrawing of automobile power assembly includes:
a test platform;
an evacuation system pallet truck positioned on the test platform;
the hub supporting mechanisms are detachably arranged on the test platform, a plurality of hub supporting mechanisms are arranged around the periphery of the evacuation system pallet truck and correspond to the hubs of the test vehicle to be tested one by one, and the test vehicle to be tested is supported on the hub supporting mechanisms through the hubs and is suspended on the evacuation system pallet truck;
the hub supporting mechanism is detachably arranged on the test platform, and when the test vehicle needs to be moved out of the test chamber in an accident, the hub supporting mechanism can be separated from the test platform and then moved out together with the test vehicle;
the electric dynamometer is provided with a plurality of electric dynamometers, the electric dynamometer is arranged on the test platform in one-to-one correspondence with the hubs of the test vehicle to be tested, and the electric dynamometer is connected with the hubs of the test vehicle to be tested through a transmission mechanism;
a plurality of transmission disconnecting mechanisms which are arranged in one-to-one correspondence with the transmission mechanisms and used for disconnecting the connection between the transmission mechanisms and the hubs;
the traction mechanism is connected with the to-be-tested test vehicle and used for moving the to-be-tested test vehicle out of the test platform.
The start, stop, working process and other operations of each part of the automobile power assembly test evacuation system can be controlled by the electric control system, and the whole control system can be matched with a temperature-sensing test system, a smoke-sensing test system, a hydrogen-sensing test system and the like in a test room. The electric control system comprises a control cabinet and a computer, the computer can monitor temperature-sensing, smoke-sensing and hydrogen-sensing system information and related state information of the automobile power assembly test evacuation system in real time, and timely and automatically control the start, stop and working process of the automobile power assembly test evacuation system according to actual conditions.
Further, the test platform is a cast iron platform.
Further, the evacuation system pallet truck is of a rectangular frame structure, and a plurality of groups of casters are arranged at the bottom of the rectangular frame. The structure of the pallet truck of the evacuation system has various structures, and the pallet truck can be placed below the body of a test truck to be tested.
Furthermore, the traction mechanism comprises a driving motor, a winding drum, a guide wheel assembly and a traction rope; the output end of the driving motor is connected with the winding drum; the guide wheel assemblies are multiple and are arranged along the moving-out route of the test vehicle to be tested; the traction rope is wound on the winding drum, one end of the traction rope is fixed with the winding drum, and the other end of the traction rope sequentially surrounds the guide wheel assemblies and then is connected with the to-be-tested vehicle.
The traction mechanism is a main power source of the automobile power assembly test evacuation system. The driving motor is an alternating current or direct current driving motor and is arranged in the reserved pit of the site foundation. The winding drum and the driving motor are coaxially arranged and are driven to rotate by the driving motor. The guide wheel assemblies can be arranged according to actual conditions and moving-out routes of the test vehicles to be tested, and the test vehicles to be tested can be moved out of the test room to a certain specified area. The traction rope can be a steel wire rope and is used for pulling out the test vehicle.
Furthermore, the device also comprises a pressing mechanism, and the pressing mechanism is used for detachably fixing the hub supporting mechanism on the test platform.
Furthermore, the hub supporting mechanism comprises a supporting seat detachably arranged on the test platform, a bearing seat arranged on the supporting seat, a bearing arranged on the bearing seat and a driving shaft arranged in the bearing; one end of the driving shaft can be connected with a hub of the to-be-tested vehicle, and the other end of the driving shaft is connected with the transmission mechanism.
Furthermore, one end of the driving shaft connected with the transmission mechanism is of an external spline structure; the transmission mechanism comprises a spline sleeve and a transition shaft; one end of the transition shaft is of a flange structure and is connected with a flange arranged on an output shaft of the electric dynamometer through a bolt, the other end of the transition shaft is of an external spline structure with the same specification as that of an external spline structure of the driving shaft, the transition shaft and the driving shaft are connected through a spline sleeve which is sleeved on the external spline end of the transition shaft and the external spline end of the driving shaft, and the spline sleeve can slide along the axial direction.
Furthermore, the transmission disconnecting mechanism comprises a bracket arranged on the test platform, a pushing device and a guide piece which are arranged on the bracket, and a U-shaped push plate; the moving direction of a piston rod of the pushing device is consistent with the sliding direction of the spline sleeve; the U-shaped push plate is arranged at the free end of the piston rod, and a U-shaped opening of the U-shaped push plate is slidably sleeved on the outer surface of the transition shaft and can move along with the extension of the piston rod of the pushing device to push the spline sleeve to move in the direction far away from the transition shaft.
The pushing device can be a hydraulic cylinder or an electric pushing cylinder; the transmission mechanism adopts the spline housing to connect the driving shaft and the transition shaft, so that the transmission of rotary driving is realized, the spline housing can slide along the axial direction, the transmission disconnecting mechanism pushes the U-shaped push plate through the piston rod of the pushing device and then pushes the spline housing to move towards the direction far away from the transition shaft, the spline housing finally leaves the transition shaft and is completely sleeved on the driving shaft, and the disconnection of the transmission mechanism, the test vehicle to be tested and the hub supporting mechanism is realized.
The device further comprises a pressing mechanism, wherein the pressing mechanism comprises a mounting frame, a pressing pushing device, a wedge block, a positioning pressing piece and a stop block; the mounting frame is arranged on the test platform; the positioning pressing piece is arranged on the test platform at a position close to the bottom of the supporting seat of the hub supporting mechanism; the pressing pushing device is arranged on the mounting frame, a wedge block is arranged at the free end of a piston rod of the pressing pushing device, the wedge block is matched with the positioning pressing piece, and the wedge block can extend out to be clamped with the positioning pressing piece and then prop against the supporting seat; the stop block is arranged on the test platform and is positioned at one side of the bottom of the supporting seat opposite to the positioning pressing piece.
The pressing pushing device can be a hydraulic cylinder or an electric pushing cylinder; when the voussoir card was gone into the location compact heap, can compress tightly the supporting seat of wheel hub supporting mechanism at one side, and the dog withstood the supporting seat at the opposite side, realized promptly to fastening wheel hub supporting mechanism's fixed, and when the voussoir withdrawed from the location compact heap, the supporting seat was then only placed on test platform, under the pulling effect of external force, can be on test platform and remove.
Furthermore, the shape of one side of the supporting seat facing the evacuation direction of the test vehicle to be tested is an arc-shaped structure protruding outwards.
Compared with the prior art, the automobile power assembly test evacuation system has the following advantages:
(1) the evacuation system for the automobile power assembly test is applied to the special conditions of smoking, spontaneous combustion, combustible gas leakage and the like in the automobile power assembly test, the automobile is rapidly moved out of a test room to a designated area, and the next emergency treatment is carried out after the automobile reaches the designated area, so that the safety of workers in the test room and buildings in the test room is ensured to the maximum extent.
(2) The transmission mechanism of the test evacuation system of the automobile power assembly adopts the same spline housing with two ends respectively connected with the driving shaft and the transition shaft, so that the transmission of rotary drive is realized, and the spline housing can slide along the axial direction. The transmission disconnecting mechanism pushes the U-shaped push plate through the piston rod of the pushing device so as to push the spline sleeve to move towards the direction far away from the transition shaft, the spline sleeve finally leaves the transition shaft and is completely sleeved on the driving shaft, the hub of the test vehicle can be safely and rapidly separated from the electric dynamometer, and the hub of the test vehicle cannot interfere with the electric dynamometer in the subsequent test vehicle rapid evacuation process.
(3) The evacuation system for the automobile power assembly test adopts a set of alternating current or direct current motor as a driving source and is responsible for drawing the pallet truck and the test truck of the evacuation system to rapidly move out of a test room to a designated area. The electric control system can ensure the rapid, stable and safe evacuation process by controlling the starting, acceleration, deceleration and stop of the alternating current or direct current motor.
(4) The evacuation system for the automobile power assembly test can be applied to the automobile four-motor power assembly test, and can also be applied to the automobile two-motor or six-motor power assembly test by reducing or increasing the hub supporting mechanism, the transmission disconnecting mechanism and the wedge block pressing mechanism according to the system principle.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of an automotive powertrain test evacuation system according to an embodiment of the present invention;
FIG. 2 is an enlarged partial view of the vehicle powertrain test evacuation system of an embodiment of the present invention;
FIG. 3 is an enlarged view of FIG. 1 at A;
fig. 4 is a schematic view of the structure of the portion shown in fig. 3 in another direction.
Description of reference numerals:
1-a test platform;
2-evacuating the system pallet truck; 21-a caster wheel;
3-a hub support mechanism; 31-a support seat; 32-a bearing seat; 33-a bearing; 34-a drive shaft;
4-electric dynamometer;
5-a transmission mechanism; 51-spline housing; 52-a transition shaft;
6-a transmission disconnection mechanism; 61-a scaffold; 62-a pushing device; 63-a guide; a 64-U shaped push plate;
7-a traction mechanism; 71-a drive motor; 72-a reel; 73-a guide wheel assembly; 74-a pull-cord;
8-a pressing mechanism; 81-a mounting rack; 82-a compression pushing device; 83-wedge block; 84-positioning pressing piece;
85-stop block.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 4, an automobile powertrain test evacuation system includes: the device comprises a traction mechanism 7, a test platform 1, an evacuation system pallet truck 2, a hub supporting mechanism 3, a pressing mechanism 8, an electric dynamometer 4, a transmission mechanism 5 and a transmission disconnecting mechanism 6;
wherein, the traction mechanism 7 comprises a driving motor 71, a winding drum 72, a guide wheel assembly 73 and a traction rope 74; the output end of the driving motor 71 is connected with the winding drum 72; a plurality of guide wheel assemblies 73 are arranged along the moving-out route of the test vehicle to be tested; a traction rope 74 is wound on the winding drum 72, one end of the traction rope 74 is fixed with the winding drum 72, and the other end of the traction rope 74 is connected with a test vehicle to be tested after sequentially surrounding the guide wheel assemblies 73 and is used for moving the test vehicle to be tested out of a test area;
the test platform 1 is a cast iron platform and is positioned in a test area, the evacuation system pallet truck 2 is positioned on the test platform 1, a plurality of groups of trundles 21 are arranged at the bottom of the evacuation system pallet truck 2, the evacuation system pallet truck 2 has various structures and can be placed below a test truck body to be tested, when the test truck needs to be moved outwards, the test truck body falls on the evacuation system pallet truck 2, the evacuation system pallet truck 2 is pulled out together by virtue of friction force between the evacuation system pallet truck and the test truck when the test truck is pulled to move outwards by the traction mechanism 7, a rubber pad can be laid on the evacuation system pallet truck 2 to increase the friction force, and a baffle plate for preventing the test truck from sliding can be arranged on the evacuation system pallet truck 2;
the hub supporting mechanisms 3 are detachably arranged on the test platform 1, a plurality of hub supporting mechanisms 3 are arranged, and two, four or six sets of hub supporting mechanisms 3 are arranged according to the actual situation of the test of the power assembly of two motors, four motors or six motors of the automobile; the hub supporting mechanisms 3 are arranged around the periphery of the evacuation system pallet truck 2 and correspond to hubs of test cars to be tested one by one, and the test cars to be tested are supported on the hub supporting mechanisms 3 through the hubs and are suspended above the evacuation system pallet truck 2; the hub supporting mechanism 3 comprises a supporting seat 31 arranged on the test platform 1, a bearing seat 32 arranged on the supporting seat 31, a bearing 33 arranged on the bearing seat 32 and a driving shaft 34 arranged in the bearing 33; the shape of one side of the supporting seat 31 facing the evacuation direction of the tested vehicle to be tested is an outwards convex arc structure; one end of the driving shaft 34 is of a flange structure and can be tightly connected with the existing bolt used for mounting the tire on the hub of the test vehicle to be tested, and the other end of the driving shaft is of an external spline structure and is connected with the transmission mechanism 5;
the number of the transmission mechanisms 5 and the number of the electric dynamometer 4 are the same as that of the hub supporting mechanism 3, and the transmission mechanisms 5 comprise spline sleeves 51 and transition shafts 52; one end of the transition shaft 52 is of a flange structure and is connected with a flange arranged on an output shaft of the electric dynamometer 4 through a bolt, the other end of the transition shaft 52 is of an external spline structure with the same specification as that of the external spline structure of the driving shaft 34, the spline sleeve 51 is sleeved on the external spline end of the transition shaft 52 and the external spline end of the driving shaft 34 to connect the transition shaft 52 and the driving shaft 34, and the spline sleeve 52 can slide along the axial direction;
the number of the transmission disconnecting mechanisms 6 is the same as that of the transmission mechanisms 5, and the transmission disconnecting mechanisms and the transmission mechanisms 5 are arranged in a one-to-one correspondence manner; the transmission disconnecting mechanism 6 comprises a bracket 61 fixed on the test platform 1 through bolts, a pushing device 62 and a guide 63 which are arranged on the bracket 61, and a U-shaped push plate 64; the moving direction of the piston rod of the pushing device 62 is consistent with the sliding direction of the spline housing 51; the U-shaped push plate 64 is arranged at the free end of the piston rod, and the U-shaped opening of the U-shaped push plate 64 is slidably sleeved on the outer surface of the transition shaft 52 and can extend out along with the piston rod of the pushing device 62 to push the spline sleeve 51 to move in the direction far away from the transition shaft 52; namely, the driving mechanism 5 adopts the spline housing 51 to connect the driving shaft 34 and the transition shaft 52, so as to realize the transmission of rotary driving, the spline housing 51 can slide along the axial direction, the transmission disconnecting mechanism 6 pushes the U-shaped push plate 64 through the piston rod of the pushing device 62, so as to push the spline housing 51 to move towards the direction far away from the transition shaft 52, the spline housing 51 finally leaves the transition shaft 52 and is completely sleeved on the driving shaft 34, so as to realize the disconnection of the driving mechanism 5 from the test vehicle to be tested and the hub supporting mechanism 3;
the pressing mechanism 8 comprises a mounting frame 81, a pressing pushing device 82, a wedge block 83, a positioning pressing piece 84 and a stop 85; the mounting rack 81 is fixed on the test platform 1 through bolts; the positioning pressing piece 84 is arranged on the test platform 1 at a position close to the bottom of the supporting seat 31 of the hub supporting mechanism 3; the pressing and pushing device 82 is arranged on the mounting frame 81, a wedge block 83 is arranged at the free end of a piston rod of the pressing and pushing device 82, the wedge block 83 is matched with the positioning pressing piece 84, and the wedge block 83 can extend out to be clamped with the positioning pressing piece 84 and then prop against the supporting seat 31; the stopper 85 is fixed on the test platform 1 and is positioned at the bottom of the supporting seat 31 at the side opposite to the positioning pressing piece 84; when the wedge block 83 is clamped into the positioning pressing piece 84, the supporting seat 31 of the hub supporting mechanism 3 can be pressed on one side, and the stopper 84 is pressed against the supporting seat 31 on the other side, so that the hub supporting mechanism 3 is fixed, and when the wedge block 83 exits from the positioning pressing piece 84, the supporting seat 31 is only placed on the test platform 1 and can move on the test platform 1 under the pulling action of external force;
the start, stop, working process and other operations of each part of the automobile power assembly test evacuation system can be controlled by the electric control system, and the whole control system can be matched with a temperature-sensing test system, a smoke-sensing test system, a hydrogen-sensing test system and the like in a test room. The electric control system comprises a control cabinet and a computer, the computer can monitor temperature-sensing, smoke-sensing and hydrogen-sensing system information and related state information of the automobile power assembly test evacuation system in real time, and timely and automatically control the start, stop and working process of the automobile power assembly test evacuation system according to actual conditions.
The working process of the test evacuation system for the automobile power assembly is as follows:
(1) the traction structure is previously installed in the equipment foundation of a laboratory at one time, and only the free end of the traction rope is pulled into a test area to wait for being connected with a test vehicle to be tested;
(2) placing four sets of hub supporting mechanisms (taking a four-motor assembly test as an example) on a cast iron platform according to the positions of hubs of a test vehicle, connecting the four hubs of the test vehicle to be tested with flange ends of driving shafts on the four sets of hub supporting mechanisms under the cooperation of a forklift or a crane, and fastening the four hubs by bolts and nuts;
(3) installing a pressing mechanism, installing a positioning pressing piece at a proper position on the side face of a supporting seat of a hub supporting mechanism, fixing a stop block at the other side of the supporting seat opposite to the positioning pressing piece, installing a pressing pushing device on an installation frame, fixing the installation frame on a cast iron platform through a bolt, ensuring that a wedge block can be matched with the positioning pressing piece and tightly press the supporting seat when a piston rod of the pressing pushing device is pushed forwards in place, starting the pressing pushing device, pushing out the wedge block to be clamped into the positioning pressing piece, realizing pressing, and installing four sets of wedge block pressing mechanisms according to the steps;
(4) installing a transmission mechanism, sleeving a spline sleeve on an external spline of the driving shaft, inserting an external spline end of the transition shaft, connecting a flange end of the transition shaft with an output end of the electric dynamometer, and installing the rest transmission mechanisms according to the steps;
(5) the transmission disconnecting mechanism can be arranged into a whole in advance, the bracket is fixed on the cast iron platform through bolts in a retraction state of a piston rod of the pushing device, and meanwhile, a U-shaped opening of the U-shaped push plate is ensured to be sleeved on the transition shaft;
(6) pushing the pallet truck of the evacuation system to the lower part of the to-be-tested truck, connecting the free end of the traction rope with the to-be-tested truck, and keeping the traction rope in a loose state;
(7) after the above process is completed, the related test of the whole vehicle can be started:
in the test process, the computer always monitors the temperature-sensing, smoke-sensing and hydrogen-sensing system information in the test room in real time, and if the system information is not abnormal, the test is continued until the test is finished;
if the information of the temperature-sensing, smoke-sensing and hydrogen-sensing systems in the test chamber is abnormal in the test process, the outward lifting door of the test chamber starts to be opened, the piston rod of the pushing device is controlled by the computer to be pushed out, the U-shaped push plate pushes the spline sleeve to move in the direction away from the transition shaft, the spline sleeve finally leaves the transition shaft and is completely sleeved on the driving shaft, the computer receives the signal feedback that the pushing device is in place, the fact that the spline sleeve is completely separated from the transition shaft is proved, and the piston rod of the pushing device retracts to the initial position;
the computer controls the retraction of a piston rod of the compressing and pushing device to retract the wedge block away from the positioning and compressing piece to not compress the supporting seat any more, so that the relative movement between the hub supporting mechanism and the cast iron platform is realized;
the driving motor of the traction mechanism is started, the traction rope is quickly tightened, the test vehicle and the hub supporting mechanism start to move under the action of the tightening force, the driving shaft in the hub supporting mechanism is connected with the supporting seat through the bearing in the bearing seat, and the supporting seat can rotate around the driving shaft under the action of the tightening of the traction rope due to the blocking action of the stop block, so that the test vehicle finally falls onto the pallet truck of the evacuation system, and the shape of one side of the supporting seat, facing the evacuation direction of the test vehicle to be tested, is an outwards-convex arc-shaped structure, so that the blocking in the evacuation process is avoided;
the pull rope continues to be tightened, and the test car together with the evacuation system pallet truck and the hub support mechanism is quickly moved out of the test room to a designated area. The electric control system can ensure that the evacuation process of the test vehicle and the pallet truck of the simultaneous evacuation system is rapid, stable and safe by controlling the whole process of starting, accelerating, decelerating and stopping of the driving motor.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. Experimental system of withdrawing of automobile power assembly, its characterized in that includes:
a test platform (1);
an evacuation system pallet truck (2), the evacuation system pallet truck (2) being located on the test platform (1);
the hub supporting mechanisms (3) are detachably arranged on the test platform (1), a plurality of hub supporting mechanisms (3) are arranged around the periphery of the evacuation system pallet truck (2) and correspond to hubs of test cars to be tested one by one, and the test cars to be tested are supported on the hub supporting mechanisms (3) through the hubs and are suspended on the evacuation system pallet truck (2);
the electric power dynamometers (4) are arranged on the test platform (1) and correspond to the hubs of the test vehicle to be tested one by one, and the electric power dynamometers (4) are connected with the hubs of the test vehicle to be tested through the transmission mechanism (5);
a plurality of transmission disconnecting mechanisms (6), wherein the transmission disconnecting mechanisms (6) are arranged in one-to-one correspondence with the transmission mechanisms (5) and used for disconnecting the connection between the transmission mechanisms (5) and the hubs;
the traction mechanism (7) is connected with the to-be-tested test vehicle and used for moving the to-be-tested test vehicle out of the test platform (1).
2. The automotive powertrain test evacuation system of claim 1, characterized in that: the test platform (1) is a cast iron platform.
3. The automotive powertrain test evacuation system of claim 1, characterized in that: the evacuation system pallet truck (2) is of a rectangular frame structure, and a plurality of groups of trundles (21) are arranged at the bottom of the rectangular frame.
4. The automotive powertrain test evacuation system of claim 1, characterized in that: the traction mechanism (7) comprises a driving motor (71), a winding drum (72), a guide wheel assembly (73) and a traction rope (74); the output end of the driving motor (71) is connected with the winding drum (72); the guide wheel assemblies (73) are multiple and are arranged along the moving-out route of the test vehicle to be tested; the traction rope (74) is wound on the winding drum (72), one end of the traction rope (74) is fixed to the winding drum (72), and the other end of the traction rope (74) sequentially rounds the guide wheel assemblies (73) and then is connected with the to-be-tested vehicle.
5. The automotive powertrain test evacuation system of claim 1, characterized in that: the device is characterized by further comprising a pressing mechanism (8), wherein the pressing mechanism (8) is used for detachably fixing the hub supporting mechanism (3) on the test platform (1).
6. The automotive powertrain test evacuation system of any one of claims 1-5, characterized in that: the hub supporting mechanism (3) comprises a supporting seat (31) detachably arranged on the test platform (1), a bearing seat (32) arranged on the supporting seat (31), a bearing (33) arranged on the bearing seat (32), and a driving shaft (34) arranged in the bearing (33); one end of the driving shaft (34) can be connected with a hub of the test vehicle to be tested, and the other end of the driving shaft is connected with the transmission mechanism (5).
7. The automotive powertrain test evacuation system of claim 6, characterized in that: one end of the driving shaft (34) connected with the transmission mechanism (5) is of an external spline structure; the transmission mechanism (5) comprises a spline sleeve (51) and a transition shaft (52); one end of the transition shaft (52) is of a flange structure and is connected with a flange arranged on an output shaft of the electric dynamometer (4) through a bolt, the other end of the transition shaft (52) is of an external spline structure with the same specification as that of an external spline structure of the driving shaft (34), the spline sleeve (51) is sleeved on the external spline end of the transition shaft (52) and the external spline end of the driving shaft (34) to connect the transition shaft (52) and the driving shaft (34), and the spline sleeve (51) can slide along the axial direction.
8. The automotive powertrain test evacuation system of claim 7, characterized in that: the transmission disconnecting mechanism (6) comprises a bracket (61) arranged on the test platform (1), a pushing device (62) and a guide piece (63) which are arranged on the bracket (61), and a U-shaped push plate (64); the moving direction of a piston rod of the pushing device (62) is consistent with the sliding direction of the spline sleeve (51); the U-shaped push plate (64) is arranged at the free end of a piston rod of the pushing device (62), a U-shaped opening of the U-shaped push plate (64) is slidably sleeved on the outer surface of the transition shaft (52) and can stretch out along with the piston rod of the pushing device (62) to push the spline sleeve (51) to move in the direction far away from the transition shaft (52).
9. The automotive powertrain test evacuation system of claim 8, characterized in that: the device is characterized by also comprising a pressing mechanism (8), wherein the pressing mechanism (8) comprises a mounting frame (81), a pressing pushing device (82), a wedge block (83), a positioning pressing piece (84) and a stop block (85); the mounting rack (81) is arranged on the test platform (1); the positioning pressing piece (84) is arranged on the test platform (1) and close to the bottom of the supporting seat (31) of the hub supporting mechanism (3); the pressing and pushing device (82) is arranged on the mounting frame (81), a wedge block (83) is arranged at the free end of a piston rod of the pressing and pushing device (82), the wedge block (83) is matched with the positioning pressing piece (84), and the wedge block (83) can extend out to be clamped with the positioning pressing piece (84) and then prop against the supporting seat (31); the stop block (85) is arranged on the test platform (1) and is positioned on one side of the bottom of the supporting seat (31) opposite to the positioning pressing piece (84).
10. The automotive powertrain test evacuation system of claim 8, characterized in that: the supporting seat (31) is of an arc structure protruding outwards towards one side of the test car to be tested in the evacuation direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010879872.5A CN111947943A (en) | 2020-08-27 | 2020-08-27 | Evacuation system for automobile power assembly test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010879872.5A CN111947943A (en) | 2020-08-27 | 2020-08-27 | Evacuation system for automobile power assembly test |
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| CN111947943A true CN111947943A (en) | 2020-11-17 |
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| CN202010879872.5A Pending CN111947943A (en) | 2020-08-27 | 2020-08-27 | Evacuation system for automobile power assembly test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039160A (en) * | 2021-11-17 | 2022-02-11 | 西南大学 | Battery pack emergency evacuation system for laboratory |
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2020
- 2020-08-27 CN CN202010879872.5A patent/CN111947943A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039160A (en) * | 2021-11-17 | 2022-02-11 | 西南大学 | Battery pack emergency evacuation system for laboratory |
| CN114039160B (en) * | 2021-11-17 | 2023-11-28 | 西南大学 | Battery pack emergency evacuation system for laboratory |
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