New energy battery pack impact resistance detection device and use method
Technical Field
The invention relates to the technical field of battery detection, in particular to a new energy battery pack impact resistance detection device and a use method thereof.
Background
Referring to the patent document entitled "impact resistance detection device for a new energy bus battery pack" with reference to application number "CN202022807502.9", the mode adopted in this patent document is that the relative positions of the first connection plate and the second connection plate are adjusted, which is favorable for adjusting the amplitude of vibration, and the vibration generated by this structure can simulate the vibration condition of a vehicle running on a road surface, so as to test the performance of the battery pack when it is impacted, but the above-mentioned operation structure generally has several problems as follows:
firstly, under the scene of simulating roadside bump vibration, the device only considers the situation of vibration, but does not consider the situation that a battery pack arranged on a chassis in a new energy vehicle bends when the vehicle runs to a large slope angle position, so that a bending test is needed to be carried out on the new energy battery pack, but the situation is not considered in the prior art, and meanwhile, bending phenomenon in reality is in a sudden state, and most experimental devices apply force to a lever punching test by adopting hydraulic pressure or applying slow pressure, so that real experimental data are difficult to achieve.
Therefore, we design a new energy battery pack impact resistance detection device and a use method.
Disclosure of Invention
The invention aims to solve the problem that most experimental devices apply force to a lever stamping test by adopting hydraulic pressure or applying slow pressure, and provides a new energy battery pack impact resistance detection device and a use method thereof.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a new energy battery package detection device that shocks resistance, includes new energy battery package and peripheral hardware support, be provided with two fixed horizontal poles on the peripheral hardware support, new energy battery package both ends are equipped with respectively and are used for buckling frame and right frame of buckling to the fixed left side of new energy battery package, new energy battery package bottom is equipped with two upset bracket components that are used for buckling to the new energy battery package, new energy battery package below is equipped with links to each other with two upset bracket components, and is used for buckling the frame and right side to buckle the frame and buckle the angle and control the whereabouts subassembly.
Preferably, the flip bracket assembly includes:
the two ends of the two connecting rods are respectively connected with the left bending frame and the right bending frame through swinging rods;
the rotating cylinders are arranged at two ends of the fixed cross rod and are rotationally connected with the left bending frame and the right bending frame.
Preferably, the falling assembly comprises a trigger box and a weight box, the trigger box and the weight box are internally penetrated and inserted with the same rotating rod, the weight box vertically slides with the trigger box through a bottom pipe and a sleeve, and a pressing block in threaded connection with the rotating rod is arranged in the trigger box.
Preferably, the screw thread strip has been seted up on the dwang, and set up the screw thread groove with screw thread strip looks adaptation on the briquetting down, the slider that links to each other with upset support assembly has been seted up to briquetting both sides down, the slider is through seting up the slide hole in trigger case both sides and slide in trigger case both sides.
Preferably, an L-shaped pressing plate propped against the weight box is arranged in the trigger box in a penetrating way, the other end of the L-shaped pressing plate is connected with the lower pressing block, and the L-shaped pressing plate slides on the sliding hole through the positioning inserting rod.
Preferably, a counterweight assembly for providing a counterweight for the rotating rod is arranged in the counterweight box, the counterweight assembly comprises a plurality of groups of counterweight blocks, the counterweight blocks are spirally stacked, and the counterweight box is slidably connected with the counterweight assembly through a limit strip and a limit groove.
Preferably, the bottom of the rotating rod is provided with an adaptive strip block, and the balancing weight is provided with a strip groove matched with the adaptive strip block.
Preferably, the lower pressing block is fixed in the trigger box through a positioning hole and a positioning bolt.
The new energy battery pack impact resistance detection device comprises the following specific operation steps:
s1: placing the new energy battery pack on the left bending frame and the right bending frame, fixing the new energy battery pack on the left bending frame and the right bending frame through an external fixing mechanism, and then rotating and adjusting a rotating rod positioned on the trigger box;
s2: the rotating rod can lift on the lower pressing block and then is inserted into the weight box, so that the number of corresponding balancing weights is selected according to the rotating angle, wherein as the rotating rod rotates to descend, as a plurality of groups of balancing weights are spirally stacked, the spiral line of the spiral strip is identical to the spiral line of the thread strip, the track formed by the rotating descending of the rotating rod to drive the adaptive strip block at the end part is identical to the strip-shaped groove group formed by the spirally stacked plurality of groups of balancing weights, the effect of hanging a plurality of balancing weights on the rotating rod is finally formed, and meanwhile, the larger the rotating amplitude of the rotating rod is, the more the balancing weights are hung on the rotating rod, so that the falling force of the lower pressing block is driven to be larger;
s3: then after the number of the corresponding balancing weights is selected, the positioning of the positioning inserting rods on the sliding holes is released, then the positioning inserting rods are pressed to drive the L-shaped pressing plates to press downwards and enable the balancing weight boxes to descend, so that a plurality of balancing weights hung on the rotating rods are separated from the balancing weights in the balancing weight boxes and have space, the subsequent falling operation is facilitated, the higher the descending height of the positioning inserting rods is, the larger the overturning angle of the left bending frame and the right bending frame is driven by the overturning bracket assembly, and finally the bending amplitude of the new energy battery is larger;
s4: at the moment, the positioning bolt is released to position the lower pressing block, so that the lower pressing block falls down under the action of the plurality of balancing weights and the impact resistance and bending test of the new energy battery pack is completed.
The beneficial effects of the invention are as follows:
the spiral lines of the plurality of groups of balancing weights are spirally stacked and are the same as the spiral lines of the threaded strips, so that the effect that the plurality of groups of balancing weights are hung on the rotating rod is finally formed, and meanwhile, the larger the rotating amplitude of the rotating rod is, the more the number of balancing weights hung on the rotating rod is, and the larger the force of the pressing block falling is driven.
According to the invention, the L-shaped pressing plate is driven to press down by the positioning inserted bar to enable the weight box to descend, so that a plurality of weight blocks hung on the rotating bar are separated from the weight blocks in the weight box and have space, the subsequent falling operation is convenient, and the higher the positioning inserted bar descends, the larger the angle of turning the left bending frame and the right bending frame is driven by the turning support assembly, and finally the larger the bending amplitude of the new energy battery is.
Through releasing the positioning of the positioning bolt to the lower pressing block, the lower pressing block suddenly drops under the action of a plurality of balancing weights, the bending phenomenon of the simulated vehicle in the road surface running is in a sudden state, the suddenly-appearing bending force acts on the new energy battery pack, and the impact resistance and bending test of the new energy battery pack are completed.
Drawings
Fig. 1 is a schematic structural diagram of a new energy battery pack impact resistance detection device according to the present invention;
fig. 2 is a front view of a new energy battery pack impact resistance detection device according to the present invention;
fig. 3 is a schematic structural diagram of a trigger box in the new energy battery pack impact resistance detection device according to the present invention;
fig. 4 is a schematic structural diagram of a weight box in the new energy battery pack impact resistance detection device according to the present invention;
fig. 5 is a schematic diagram of a partial explosion of a weight box in the new energy battery pack impact resistance detection device according to the present invention;
fig. 6 is a top view of multiple sets of balancing weights in the new energy battery pack impact resistance detection device provided by the invention.
In the figure: 1. a new energy battery pack; 2. a left bending frame; 3. right bending frame; 4. a swinging rod; 5. a rotating cylinder; 6. fixing the cross bar; 7. a connecting rod; 8. a slide block; 9. a trigger box; 10. a weight box; 11. balancing weight; 12. a bar-shaped groove; 13. a rotating lever; 14. adapting the bar block; 15. a limit bar; 16. positioning holes; 17. positioning a bolt; 18. positioning the inserted link; 19. an L-shaped pressing plate; 20. a slide hole; 21. pressing the block; 22. a bottom tube; 23. a sleeve; 24. a thread strip.
Detailed Description
Referring to fig. 1-6, a new energy battery pack impact resistance detection device comprises a new energy battery pack 1 and a peripheral support, wherein two fixing cross bars 6 are arranged on the peripheral support, a left bending frame 2 and a right bending frame 3 for fixing the new energy battery pack 1 are respectively arranged at two ends of the new energy battery pack 1, the left bending frame 2 and the right bending frame 3 are used for fixing the new energy battery pack 1, and in this way, the bending effect of the new energy battery pack 1 can be achieved through overturning the left bending frame 2 and the right bending frame 3, so that impact resistance test is achieved.
The new energy battery pack 1 is placed on the left bending frame 2 and the right bending frame 3, and then the new energy battery pack 1 is fixed on the left bending frame 2 and the right bending frame 3 through the external fixing mechanism, and the external fixing mechanism is in the prior art and only plays a role in fixing the new energy battery pack 1 on the left bending frame 2 and the right bending frame 3, so that excessive explanation is not made.
The bottom of the new energy battery pack 1 is provided with two turnover bracket components for bending the new energy battery pack 1, and the turnover bracket components play a role in turning the left bending frame 2 and the right bending frame 3 so as to bend the new energy battery pack 1.
The overturning bracket assembly comprises two connecting rods 7, two ends of the two connecting rods 7 are respectively connected with the left bending frame 2 and the right bending frame 3 through swinging rods 4, so that the left bending frame 2 and the right bending frame 3 can be driven to be bent through the swinging rods 4 by vertically descending the two connecting rods 7;
the upset support subassembly still includes a plurality of rotation section of thick bamboo 5, and rotation section of thick bamboo 5 sets up at fixed horizontal pole 6 both ends, and rotation section of thick bamboo 5 is in the frame 2 of buckling on the left side and the frame 3 of buckling on the right side rotate and link to each other, sets up like this and can guarantee the steady operation of whole device.
The new energy battery pack 1 below is equipped with and links to each other with two upset bracket components, and is used for the falling subassembly of controlling the angle of buckling of frame 2 and the frame 3 of buckling of right side to buckle the subassembly including trigger case 9 and weight case 10.
Referring to the state of fig. 3, the same rotating rod 13 is inserted in the trigger box 9 and the weight box 10 in a penetrating manner, the rotating rod 13 can ascend and descend at the lower pressing block 21 and then is inserted into the weight box 10, so that the number of corresponding weight blocks 11 is selected according to the rotating angle, the larger the rotating amplitude of the rotating rod 13 is, the more the number of weight blocks 11 hung by the rotating rod 13 is, and the larger the falling force of the lower pressing block 21 is driven;
the rotating rod 13 is provided with a threaded strip 24, the lower pressing block 21 is provided with a threaded groove matched with the threaded strip 24, two sides of the lower pressing block 21 are provided with sliding blocks 8 connected with the overturning bracket component, the sliding blocks 8 slide at two sides of the triggering box 9 through sliding holes 20 formed at two sides of the triggering box 9, and the sliding blocks 8 are rotationally connected with the swinging rod 4.
The trigger box 9 is internally penetrated and provided with an L-shaped pressing plate 19 which is propped against the weight box 10, the weight box 10 vertically slides with the trigger box 9 through a bottom pipe 22 and a sleeve 23, the L-shaped pressing plate 19 is driven to be pressed down by the pressing positioning inserting rod 18, the weight box 10 is lowered, a plurality of balancing weights 11 hung on the rotating rod 13 can be separated from the balancing weights 11 in the weight box 10, and spaces exist between the balancing weights 11 and the weight box, so that the follow-up falling operation is facilitated.
And the other end of the L-shaped pressing plate 19 is connected with the lower pressing block 21, the L-shaped pressing plate 19 slides on the sliding hole 20 through the positioning inserting rod 18, wherein the positioning inserting rod 18 is provided with a corresponding positioning mechanism, the positioning mechanism is used for fixing the positioning inserting rod 18 in the sliding hole 20, and the structure is the prior art and is not excessively elucidated here.
The weight box 10 is internally provided with a weight component for providing a weight for the rotating rod 13, the weight component comprises a plurality of groups of weight blocks 11, the plurality of groups of weight blocks 11 are spirally stacked, the weight box 10 is connected with the weight component in a sliding manner through a limiting strip 15 and a limiting groove, and as the spiral line of the plurality of groups of weight blocks 11 which are spirally stacked is identical to the spiral line of the threaded strip 24, the track formed by the rotating descending of the adapting strip block 14 which drives the end part of the rotating rod 13 is identical to the groove group of the plurality of groups of weight blocks 11 which are spirally stacked, and finally the effect of hanging the plurality of weight blocks 11 on the rotating rod 13 is formed.
The bottom of the rotating rod 13 is provided with an adapting strip block 14, the balancing weight 11 is provided with a strip groove 12 adapted to the adapting strip block 14, and thus the arrangement can ensure that two parts of the plurality of balancing weights 11 hung on the rotating rod 13 separated from the balancing weights 11 in the weight box 10 still can slide up and down through a limit bar 15 and a limit groove.
The trigger box 9 is internally provided with a lower pressing block 21 which is in threaded connection with the rotating rod 13, the lower pressing block 21 is fixed in the trigger box 9 through a positioning hole 16 and a positioning bolt 17, and at the moment, the lower pressing block 21 suddenly drops under the action of a plurality of balancing weights 11 by releasing the positioning of the positioning bolt 17, so that the bending phenomenon of a simulated pavement in reality is in a sudden state, and the impact resistance and bending test of the new energy battery pack 1 is completed.
The application method of the new energy battery pack impact resistance detection device comprises the following specific operation steps:
s1: placing the new energy battery pack 1 on the left bending frame 2 and the right bending frame 3, fixing the new energy battery pack 1 on the left bending frame 2 and the right bending frame 3 through an external fixing mechanism, and then rotating and adjusting a rotating rod 13 positioned on the trigger box 9;
s2: the rotating rod 13 ascends at the lower pressing block 21 and is then inserted into the weight box 10, so that the number of corresponding weight blocks 11 is selected according to the rotating angle, wherein as the rotating rod 13 rotates and descends, the spiral lines of the plurality of groups of weight blocks 11 which are spirally stacked are identical to the spiral lines of the threaded strips 24, so that the track formed by the rotating and descending of the adapting strip block 14 which drives the end part of the rotating rod 13 to rotate and descend is identical to the groove group of the strip-shaped grooves 12 which are spirally stacked by the plurality of groups of weight blocks 11, the effect that the plurality of weight blocks 11 are hung on the rotating rod 13 is finally formed, and meanwhile, the larger the rotating amplitude of the rotating rod 13 is, the more the weight blocks 11 are hung on the rotating rod 13, and the larger the force for driving the lower pressing block 21 to descend is;
s3: then after the number of the corresponding balancing weights 11 is selected, the positioning of the positioning inserting rod 18 on the sliding hole 20 is released, then the positioning inserting rod 18 is pressed to drive the L-shaped pressing plate 19 to press downwards and enable the balancing weight box 10 to descend, so that the plurality of balancing weights 11 hung on the rotating rod 13 are separated from the balancing weights 11 in the balancing weight box 10 and have space, the subsequent falling operation is facilitated, the higher the descending height of the positioning inserting rod 18 is, the larger the overturning angle of the left bending frame 2 and the right bending frame 3 is driven by the overturning bracket component, and finally the larger the bending amplitude of the new energy battery pack 1 is;
s4: at this time, the positioning of the positioning bolt 17 to the lower pressing block 21 is released, so that the lower pressing block 21 falls down under the action of the plurality of balancing weights 11 and the impact resistance and bending test of the new energy battery pack 1 is completed.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.