CN212301789U

CN212301789U - Circulating ball impact testing device

Info

Publication number: CN212301789U
Application number: CN202020384056.2U
Authority: CN
Inventors: 卢鑫; 吴斌; 吴珍荣; 杨政杰
Original assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Current assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2021-01-05
Anticipated expiration: 2030-03-23

Abstract

The utility model relates to a power battery field provides a circulation ball hits testing arrangement, including assaulting the subassembly and be used for to assault the driving motor that the subassembly provided power, assault the subassembly including the guide cylinder that has the passageway, arrange impact ball, sliding connection in the passageway of guide cylinder in and be used for holding up the bracket that impact ball reciprocated along vertical direction and be used for connecting the drive mechanism of bracket and driving motor's output in the passageway of guide cylinder, still be equipped with a reset spring between guide cylinder and the bracket. The driving motor is started, the bracket is driven by the transmission mechanism to move up and down in the channel of the guide cylinder along the vertical direction, the bracket supports the impact ball to impact towards the impact object, and the kinetic energy of the impact ball is in direct proportion to the rotating speed of the driving motor. Therefore, the impact kinetic energy of the impact ball is regulated and controlled by adjusting the rotating speed of the driving motor. Meanwhile, the reset spring can restore the bracket to the initial position in time so as to ensure the transmission efficiency.

Description

Circulating ball impact testing device

Technical Field

The utility model relates to a power battery technical field especially provides a circulation ball hits testing arrangement.

Background

With the increasing popularization of new energy automobiles, however, short circuit and fire accidents sometimes happen to the new energy automobiles due to mechanical damage. Therefore, manufacturers of large new energy vehicles gradually perfect various test surfaces, wherein the bottom impact test of the battery pack is one of the test surfaces. At present, the impact test of the bottom of the battery pack is mainly divided into three types: firstly, a sphere with small kinetic energy is circularly impacted for many times; secondly, the ball with large kinetic energy is subjected to single destructive impact; thirdly, the sphere is in quasi-static type extrusion impact.

In the ball impact testing device in the current market, the kinetic energy of an impact ball cannot be effectively calibrated and controlled, so that the reliability of the ball impact test is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a circulation ball hits testing arrangement, the kinetic energy of the impact ball that aims at solving current ball hits testing arrangement lacks the problem of effective demarcation and control.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a circulation ball hits testing arrangement, includes the impact assembly and is used for providing the driving motor of power to the impact assembly, and the impact assembly is including the guide cylinder that has the passageway, arrange the impact ball in the passageway of guide cylinder in, sliding connection just is used for holding up the bracket that the impact ball reciprocated along vertical direction in the passageway of guide cylinder, and is used for connecting the drive mechanism of bracket and driving motor's output, still is equipped with a reset spring between guide cylinder and the bracket.

The utility model has the advantages that: the utility model provides a circulation ball hits testing arrangement, its working process as follows: the driving motor is started, the bracket is driven by the transmission mechanism to move up and down in the channel of the guide cylinder along the vertical direction, the bracket supports the impact ball to impact towards the impact object, and the kinetic energy of the impact ball is in direct proportion to the rotating speed of the driving motor. Therefore, the impact kinetic energy of the impact ball is regulated and controlled by adjusting the rotating speed of the driving motor. Meanwhile, the reset spring can restore the bracket to the initial position in time so as to ensure the transmission efficiency.

In one embodiment, the guide cylinder comprises a cylinder body with a channel and at least two supporting legs arranged on the outer side of the cylinder body, and the supporting legs are arranged on the outer side of the cylinder body at equal intervals by taking the central axis of the cylinder body as the center.

Through adopting above-mentioned technical scheme, in order to guarantee that the bracket reciprocates steadily in the vertical direction, the barrel needs fix and hold up it through the supporting legs to guarantee the required activity space of bracket.

In one embodiment, the support foot comprises a first support section for attachment to the barrel, a second support section for attachment to the mounting platform, and a third support section connecting the first support section and the second support section.

Through adopting above-mentioned technical scheme, twist into the second through the screw and support the section and be connected with mounting platform, first support section then with barrel integrated into one piece.

In one embodiment, the bracket includes a support portion slidably coupled in the passage of the cylinder and a connection portion formed by one end of the support portion protruding in a radial direction and for slidably coupling to the transmission mechanism.

Through adopting above-mentioned technical scheme, the rotary motion of driving motor's output converts the straight reciprocating motion of supporting part in the passageway of barrel into through drive mechanism and connecting portion.

In one embodiment, the diameter of connecting portion is greater than the external diameter of barrel, and the outside of barrel is located to the reset spring cover to the connecting portion is placed in to the one end of reset spring, and the other end supports and leans on in first support section.

Through adopting above-mentioned technical scheme, reset spring obtains stable fixed mode. And, when reset spring was in the shrink state all the time for connecting portion resume to initial position under the elasticity effect, and not only rely on self gravity, and rebound speed is faster promptly.

In one embodiment, the transmission mechanism is a cam arranged at the output end of the driving motor, and the cam abuts against the connecting part.

Through adopting above-mentioned technical scheme, because cam itself is eccentric structure, when rotating around the axis in driving motor's output, with connecting portion sliding contact for connecting portion reciprocate in vertical direction.

In one embodiment, the transmission mechanism is a cam arranged at the output end of the driving motor, the connecting part comprises a main body arranged at one end of the supporting part and a support post formed by the main body protruding along the axial direction, and the cam abuts against the support post.

Through adopting above-mentioned technical scheme, on the same principle, with cam and the direct sliding connection of connecting portion, change the pillar connection of cam and connecting portion into, like this, improve the impact height of impact ball.

In one embodiment, the transmission mechanism is a cylindrical cam arranged at the output end of the driving motor, the connecting part comprises a main body arranged at one end of the supporting part and an L-shaped column arranged at the end part of the main body far away from the supporting part, and one end of the L-shaped column far away from the main body is connected with a channel of the cylindrical cam in a sliding mode.

Through adopting above-mentioned technical scheme, on the same way, when the axis rotation in driving motor's output was wound to the cylinder cam, L type post then slided in the channel of cylinder cam to reciprocate along vertical direction under the drive of cylinder cam.

In one embodiment, the cycling ball impact testing device further comprises a fixing frame for fixing the battery pack.

Through adopting above-mentioned technical scheme, utilize the mount to hold up the battery package to make the impact ball strike the bottom of battery package, accomplish battery package bottom impact test.

In one embodiment, the fixing frame comprises a plurality of upright columns surrounding the edge side part of the battery pack and a limiting block arranged at the top end part of each upright column.

Through adopting above-mentioned technical scheme, the battery package is supported by each stand to, the border side card of battery package is located and is fixed on each stopper.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a circular ball impact testing device according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a circular ball impact testing device according to a first embodiment of the present invention;

fig. 3 is a schematic structural view of a guide cylinder of an impact assembly of a circulating ball impact testing apparatus according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a transmission mechanism and a bracket of a circulating ball impact testing apparatus according to a second embodiment of the present invention;

fig. 5 is a cross-sectional view of a transmission mechanism and a bracket of a circulating ball impact testing device according to a third embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

the impact mechanism comprises an impact assembly 10, a driving motor 20, a guide cylinder 11, an impact ball 12, a bracket 13, a transmission mechanism 14, a return spring 15, a cylinder 111, a supporting leg 112, a first supporting section 1121, a second supporting section 1122, a third supporting section 1123, a supporting part 131, a connecting part 132, a main body 1321, a supporting column 1322, an L-shaped column 1323, a fixing frame 30, an upright column 31 and a limiting block 32.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "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 merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 and 2, a circulating ball impact testing apparatus according to an embodiment of the present invention includes an impact assembly 10 and a driving motor 20 for providing power to the impact assembly 10, the impact assembly 10 includes a guide cylinder 11 having a channel, an impact ball 12 disposed in the channel of the guide cylinder 11, a bracket 13 slidably connected in the channel of the guide cylinder 11 and used for supporting the impact ball 12 to move up and down along a vertical direction, and a transmission mechanism 14 for connecting the bracket 13 and an output end of the driving motor 20, and a return spring 15 is further disposed between the guide cylinder 11 and the bracket 13.

The utility model has the advantages that: the utility model provides a circulation ball hits testing arrangement, its working process as follows: the driving motor 20 is started, the transmission mechanism 14 drives the bracket 13 to move up and down in the channel of the guide cylinder 11 along the vertical direction, the bracket 13 supports the impact ball 12 to impact towards the impact object, and the kinetic energy of the impact ball 12 is in direct proportion to the rotating speed of the driving motor 20. According to the collection of the test data, that is, the current rotating speed of the driving motor 20 and the speed of the impact ball 12 corresponding to the mass are collected, it can be known that a transmission relation coefficient f exists between the rotating speed n of the driving motor 20 and the speed V of the impact ball 12, that is, V ═ f × n, and thus a direct ratio relation is satisfied. Thus, the impact kinetic energy of the impact ball 12 is regulated by adjusting the rotation speed of the drive motor 20. Simultaneously, reset spring 15 can in time resume to initial position with bracket 13, and like this, bracket 13 can get back to initial position fast under reset spring 15's pulling force effect, compares the playback under the effect of gravity again, and transmission efficiency is higher.

Example one

Referring to fig. 1 to 3, in the present embodiment, the guiding cylinder 11 includes a cylinder 111 having a channel and at least two supporting legs 112 disposed outside the cylinder 111, and each supporting leg 112 is disposed outside the cylinder 111 with an equal interval around a central axis of the cylinder 111. It will be appreciated that, in order to ensure that the bracket 13 moves up and down stably in the vertical direction, the cylinder 111 is fixed and supported by the supporting legs 112 to ensure a desired movement space of the bracket 13. Preferably, referring to the drawings, the number of the supporting legs 112 is two, and the supporting legs are symmetrically arranged on the outer side of the cylinder 111.

Referring to fig. 2 and 3, in the present embodiment, the supporting foot 112 includes a first supporting section 1121 for connecting to the cylinder 111, a second supporting section 1122 for connecting to the mounting platform, and a third supporting section 1123 for connecting the first supporting section 1121 and the second supporting section 1122. Here, the first support segment 1121 is integrally formed with the cylinder 111 by being screwed into the second support segment 1122 to be connected to the mounting platform. The included angle between each support section is adjusted according to actual need.

Referring to fig. 2 and 3, in the present embodiment, the bracket 13 includes a supporting portion 131 slidably connected in the passage of the cylinder 111, and a connecting portion 132 formed by one end of the supporting portion 131 protruding in a radial direction and slidably connected to the transmission mechanism 14. Here, the rotational motion of the output end of the driving motor 20 is converted into the linear reciprocating motion of the support portion 131 in the passage of the cylinder 111 through the transmission mechanism 14 and the connection portion 132.

Referring to fig. 2 and fig. 3, the diameter of the connecting portion 132 is larger than the outer diameter of the cylinder 111, and one end of the return spring 15 is disposed on the connecting portion 132 and the other end abuts against the first supporting section 1121. In this way, the return spring 15 is secured in a stable manner. And, when the return spring 15 is always in the contracted state, the connecting portion 132 is allowed to be restored to the initial position by the elastic force, not only by the self-gravity, i.e., the rebound speed is faster.

Referring to fig. 2, in the present embodiment, the transmission mechanism 14 is a cam disposed at the output end of the driving motor 20, and the cam abuts against the connecting portion 132. It can be understood that, since the cam itself is an eccentric structure, the connecting portion 132 is contact-slid in the circumferential direction of the cam when rotated about the axis of the output end of the driving motor 20, and is moved up and down in the vertical direction due to the eccentric action.

Referring to fig. 2, in the present embodiment, the device for testing a circulating ball impact further includes a fixing frame 30 for fixing a battery pack. Namely, the battery pack is lifted by the fixing frame 30, so that the impact ball 12 impacts the bottom of the battery pack, and the bottom impact test of the battery pack is completed. Preferably, with continued reference to the figures, the fixing frame 30 includes a plurality of columns 31 surrounding the rim side of the battery pack and stoppers 32 provided at the top end portions of the respective columns 31. It can be understood that the battery pack is supported by each upright column 31, and the edge side of the battery pack is clamped on each stopper 32 for fixing. Specifically, the stopper is an L template, passes through the fix with screw at stand 31 with the horizontal segment of L template, and the vertical board of L template supports and leans on in the lateral wall of battery package. And the limiting blocks with different sizes are selected according to the battery packs with different specifications.

Example two

Referring to fig. 4, the difference from the above embodiment is that the transmission mechanism 14 is a cam disposed at the output end of the driving motor 20, the connection portion 132 includes a main body 1321 disposed at one end of the supporting portion 131, and a support 1322 formed by the main body 1321 protruding in the axial direction, and the cam abuts against the support 1322. Similarly, the cam is directly slidably connected to the connecting portion 132, and instead, the cam is connected to the support 1322 of the connecting portion 132, so that the impact height of the impact ball 12 can be increased. Preferably, rollers are mounted to the posts 1322 to reduce friction between the posts 1322 and the cam.

EXAMPLE III

Referring to fig. 5, the difference from the first embodiment is that the transmission mechanism 14 is a cylindrical cam provided at the output end of the driving motor 20. Here, the cylindrical cam has a cylindrical shape, and an annular groove is formed in a side wall of the cylinder so that a member sliding along the groove reciprocates in an axial direction of the cylinder. The connecting portion 132 includes a main body 1321 disposed at one end of the supporting portion 131 and an L-shaped post 1323 disposed at an end of the main body 1321 away from the supporting portion 131, and one end of the L-shaped post 1323 away from the main body 1321 is slidably connected to the channel of the cylindrical cam. Similarly, when the cylindrical cam rotates around the axis of the output end of the driving motor 20, the L-shaped column 1323 slides in the channel of the cylindrical cam and moves up and down in the vertical direction under the driving of the cylindrical cam.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A circulating ball hitting testing device is characterized in that: including the impact assembly and be used for to the driving motor who strikes the subassembly and provide power, the impact assembly is including the guide cylinder that has the passageway, arrange in strike ball, sliding connection in the passageway of guide cylinder and be used for holding up strike ball along the bracket that vertical direction reciprocated and be used for connecting the bracket with driving motor's output's drive mechanism in the passageway of guide cylinder, the guide cylinder with still be equipped with a reset spring between the bracket.

2. The cyclic ball impact testing device according to claim 1, wherein: the guide cylinder comprises a cylinder body with a channel and at least two supporting legs arranged on the outer side of the cylinder body, and the supporting legs are arranged on the outer side of the cylinder body at equal intervals by taking the central axis of the cylinder body as the center.

3. The cyclic ball impact testing device according to claim 2, wherein: the supporting legs including be used for connect in the first support section of barrel, be used for connecting mounting platform's second support section, and connect first support section with the third support section of second support section.

4. The cyclic ball impact testing device according to claim 3, wherein: the bracket comprises a supporting part which is connected in the channel of the cylinder in a sliding way, and a connecting part which is formed by protruding one end of the supporting part along the radial direction and is used for being connected in the transmission mechanism in a sliding way.

5. The cyclic ball impact testing device according to claim 4, wherein: the diameter of connecting portion is greater than the external diameter of barrel, reset spring cover is located the outside of barrel, and reset spring's one end is arranged in connecting portion and the other end support by in first support section.

6. The cyclic ball impact testing device according to claim 4, wherein: the transmission mechanism is a cam arranged at the output end of the driving motor, and the cam is abutted to the connecting part.

7. The cyclic ball impact testing device according to claim 4, wherein: the transmission mechanism is a cam arranged at the output end of the driving motor, the connecting part comprises a main body arranged at one end of the supporting part and a supporting column formed by the main body protruding along the axial direction, and the cam is abutted against the supporting column.

8. The cyclic ball impact testing device according to claim 4, wherein: drive mechanism is for locating the cylinder cam of driving motor's output, connecting portion are including locating the main part of the one end of supporting part and locating the main part is kept away from L type post on the tip of supporting part, L type post is kept away from the one end sliding connection of main part in the channel of cylinder cam.

9. The cyclic ball impact test device according to any one of claims 1 to 8, wherein: the circulating ball hitting testing device further comprises a fixing frame for fixing the battery pack.

10. The cyclic ball impact testing device according to claim 9, wherein: the mount is including enclosing a plurality of stands of locating the marginal side portion of battery package and locating each the stopper of the top portion of stand.