CN212301788U

CN212301788U - Circulating ball impact testing device

Info

Publication number: CN212301788U
Application number: CN202020383870.2U
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 subassembly and driving motor, assaulting the subassembly including the guide cylinder that has the passageway, swing joint in the passageway of guide cylinder bracket, locating the impact ball in the passageway of guide cylinder and being used for connecting driving motor's output and the drive mechanism of bracket, the bracket reciprocates along the relative guide cylinder of vertical direction under driving motor's drive. Here, the channel of the barrel is a clearance fit with the bracket and ensures that the impact ball passes smoothly. When the driving motor starts, the bracket is driven by the transmission mechanism to move up and down in the channel of the guide cylinder, and meanwhile, the bracket supports the impact ball 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.

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 subassembly and is used for providing the driving motor of power to the impact subassembly, and the impact subassembly is including the guide cylinder that has the passageway, swing joint in the passageway of guide cylinder bracket, locate the impact ball in the passageway of guide cylinder and be used for connecting driving motor's output and the drive mechanism of bracket, and the bracket reciprocates along the relative guide cylinder of vertical direction under driving motor's drive.

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 starts, drives the bracket through drive mechanism and reciprocates in the passageway of guide cylinder, and simultaneously, the bracket holds up and strikes the ball towards the impact object to, the kinetic energy of striking the ball is directly proportional with driving motor's rotational speed. Therefore, the impact kinetic energy of the impact ball is regulated and controlled by adjusting the rotating speed of the driving motor.

In one embodiment, the guide cylinder comprises a cylinder body and a support leg arranged on the outer side of the cylinder body.

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

In one embodiment, the guide cylinder further comprises a guide frame provided at the bottom of the cylinder body and used for guiding the bracket.

Through adopting above-mentioned technical scheme, utilize the leading truck to carry out limiting displacement to the bracket to ensure that the bracket moves and not squint in vertical direction all the time.

In one embodiment, the guide frame comprises a main body connected to the barrel body and a support connected to the main body and parallel to the horizontal plane, the support comprises a supporting portion arranged in the channel of the barrel body and a connecting portion extending outwards from the supporting portion and used for connecting the transmission mechanism, and the support is provided with a guide structure used for guiding the connecting portion.

Through adopting above-mentioned technical scheme, the supporting part reciprocates in the passageway of barrel, and the outside of barrel is then arranged in to connecting portion to, it is spacing to the support through guide structure on the support, avoids it to take place the off normal.

In one embodiment, the guide structure is a plurality of guide clamping grooves arranged on the bracket.

Through adopting above-mentioned technical scheme, connecting portion arrange corresponding direction joint inslot in to make connecting portion obtain the ascending degree of freedom of movement in the vertical direction.

In one embodiment, the transmission mechanism includes a first link hinged to the output end of the driving motor, and a second link having one end hinged to the first link and the other end hinged to the connection portion.

By adopting the technical scheme, the first connecting rod and the second connecting rod form the crank connecting rod, and the rotary motion of the driving motor is converted into the linear reciprocating motion of the bracket in the channel in the cylinder body.

In one embodiment, the number of the brackets is at least two, the brackets are arranged side by side along the extending direction of the main body, the transmission mechanism further comprises a plurality of balance rods, one end of each balance rod is connected to the connecting part of one bracket in a sliding mode, the other end of each balance rod is connected to the connecting part of the adjacent bracket in a sliding mode, and the middle parts of the balance rods are hinged to the support.

By adopting the technical scheme, the two brackets can drive the corresponding impact balls to alternatively impact the object to be impacted by adding the balance rod.

In one embodiment, the ends of the balance bar are provided with symmetrically arranged sliding grooves.

By adopting the technical scheme, the balance bar takes the middle point of the balance bar as a fulcrum, the two ends of the balance bar are driven to swing up and down alternately around the fulcrum through the second connecting rod, and specifically, each sliding groove is used for the corresponding hinge column to slide.

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 frame for placing the battery pack and fixing feet arranged at each top corner of the frame, and the bottom end surface of the frame is higher than the top end surface of the guide cylinder.

Through adopting above-mentioned technical scheme, utilize fixed foot to hold up the frame, the battery package is fixed on the frame to, expose the bottom of battery package to under the impact ball.

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 an enlarged view taken at A in FIG. 1;

fig. 3 is a cross-sectional view of an impact assembly of the circulating ball impact testing apparatus according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a guide frame of the circulating ball impact testing device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an impact assembly of the circulating ball impact testing apparatus according to an embodiment of the present invention;

fig. 6 is another cross-sectional view of an impact assembly of the circulating ball impact testing apparatus according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a balance bar of the device for testing a recirculating ball impact according to an 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, a bracket 12, an impact ball 13, a transmission mechanism 14, a cylinder body 111, a supporting leg 112, a guide frame 113, a main body 1131, a support 1132, a guide structure 113a, a supporting part 121, a connecting part 122, a first connecting rod 141, a second connecting rod 142, a balance bar 143, a sliding chute 14a, a fixed frame 30, a frame 31 and a fixed foot 32.

Detailed Description

Reference will now be made in detail to 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 function 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, 5 and 6, an embodiment of the present invention provides a circulating ball impact testing apparatus, including an impact assembly 10 and a driving motor 20 for providing power to the impact assembly 10, wherein the impact assembly 10 includes a guide cylinder 11 having a channel, a bracket 12 movably connected in the channel of the guide cylinder 11, an impact ball 13 disposed in the channel of the guide cylinder 11, and a transmission mechanism 14 for connecting an output end of the driving motor 20 and the bracket 12, and the bracket 12 is driven by the driving motor 20 to move up and down relative to the guide cylinder 11 along a vertical direction. Here, the channel of the barrel is a clearance fit with the carrier 12 and ensures that the impact ball 13 passes smoothly.

The embodiment of the utility model provides a circulation ball hits testing arrangement, its working process as follows: the driving motor 20 is started, the bracket 12 is driven by the transmission mechanism 14 to move up and down in the channel of the guide cylinder 11, meanwhile, the bracket 12 supports the impact ball 13 to face the impact object, and the kinetic energy of the impact ball 13 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 13 corresponding to the mass, 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 13, that is, V ═ f × n, and thus a direct ratio relation is satisfied. Thus, the impact kinetic energy of the impact ball 13 is regulated and controlled by adjusting the rotation speed of the driving motor 20.

Referring to fig. 3, 5 and 6, in one embodiment, the guide cylinder 11 includes a cylinder 111 and support legs 112 disposed outside the cylinder 111. It will be appreciated that in order to ensure that the carriage 12 moves up and down in the vertical direction, the barrel 111 is lifted by the support legs 112 to ensure the required movement space of the carriage 12. Specifically, two opposite sides of the cylinder 111 are provided with a support leg 112, and the support legs 112 are fixed on the operating platform by screws, so that the fixing requirements are met.

Referring to fig. 3 and 4, in one embodiment, the guiding cylinder 11 further includes a guiding frame 113 disposed at the bottom of the cylinder 111 and used for guiding the bracket 12. It will be appreciated that the carriage 12 is restrained by the guide 113 to ensure that the carriage 12 is always vertically displaced without deflection. Specifically, with continued reference to fig. 2 to 6, the guiding frame 113 includes a main body 1131 connected to the barrel 111 and a support 1132 connected to the main body 1131 and parallel to the horizontal plane, the bracket 12 includes a supporting portion 121 disposed in the channel of the barrel 111 and a connecting portion 122 extending outward from the supporting portion 121 and used for connecting the transmission mechanism 14, and the support 1132 is provided with a guiding structure 113 a. It can be understood that the supporting portion 121 moves up and down in the channel of the cylinder 111, the connecting portion 122 is disposed outside the cylinder 111, and the support 1132 is limited by the guiding structure 113a on the support 1132, that is, both ends of the bracket 12 are limited, so as to avoid deviation.

Specifically, referring to fig. 4, in one embodiment, the guiding structure 113a is a plurality of guiding clip slots opened on the support 1132. It is understood that the connecting portion 122 is disposed between the guide catching grooves, so that the connecting portion 122 obtains a degree of freedom of movement in a vertical direction. Here, the number of the guide catching grooves corresponds to the number of the connection portions 122. Of course, the guide structure 113a may be a clamping sleeve or the like, in addition to the guide clamping groove.

Referring to fig. 2, 5 and 6, in one embodiment, the transmission mechanism 14 includes a first link 141 hinged to the output end of the driving motor 20, and a second link 142 having one end hinged to the first link 141 and the other end hinged to the connecting portion 122. Here, one end of the first link 141 is connected to the output end of the driving motor 20 by a pin, the other end of the first link 141 is connected to one end of the second link 142 by a pin, and the other end of the second link 142 is connected to the connecting portion 122 of the bracket 12 by a pin. Thus, the first link 141 and the second link 142 constitute a crank link, which converts the rotational motion of the driving motor 20 into the linear reciprocating motion of the carriage 12 in the passage in the cylinder 111.

Referring to fig. 3, in an embodiment, the number of the brackets 12 is at least two, each bracket 12 is arranged side by side along the extending direction of the main body 1131, the transmission mechanism 14 further includes a plurality of balance bars 143, one end of each balance bar 143 is slidably connected to the connecting portion 122 of one bracket 12, the other end of each balance bar 143 is slidably connected to the connecting portion 122 of an adjacent bracket 12, and the middle portion of each balance bar 143 is hinged to the support 1132. In this way, by adding the balance bar 143, two adjacent brackets 12 can drive the corresponding impact balls 13 to alternatively impact the object to be impacted. That is, one balance bar 143 realizes that two brackets 12 drive the corresponding impact balls 13 to alternately impact the object to be impacted, and two balance bars 143 can realize that three brackets 12 drive the corresponding impact balls 13 to alternately impact the object to be impacted, and so on.

Preferably, referring to fig. 5 to 7, in one embodiment, the number of the brackets 12 is two, each bracket 12 is symmetrically disposed on both sides of the main body 1131, the number of the balance bar 143 is one, one end of the balance bar 143 is slidably connected to the hinge of the connecting portion 122 of one bracket 12 and the second connecting rod 142, the other end of the balance bar 143 is slidably connected to the connecting portion 122 of the other bracket 12, and the middle portion of the balance bar 143 is hinged to the bracket 1132. It can be understood that the balance bar 143 uses its middle point as a pivot, and the second link 142 drives the two ends of the balance bar 143 to swing up and down alternately around the pivot. Thereby, the two brackets 12 drive the corresponding impact balls 13 to alternatively impact the object to be impacted. Specifically, with continued reference to fig. 7, the ends of the balance bar 143 are opened with symmetrically disposed slide slots 14 a. Here, each sliding slot 14a is used for receiving a corresponding hinge post for sliding, for example, the hinge post is a pin.

Referring to fig. 1, in one embodiment, the device for testing a recirculating ball impact further includes a holder 30 for holding a battery pack. As can be understood, the battery pack is held up by the fixing frame 30, so that the impact ball 13 impacts the bottom of the battery pack, thereby completing the bottom impact test of the battery pack. With continued reference to fig. 1, the fixing frame 30 includes a frame 31 for placing the battery pack and fixing legs 32 disposed at each top corner of the frame 31, and a bottom end surface of the frame 31 is higher than a top end surface of the guide cylinder 11. That is, the frame 31 is lifted up by the fixing legs 32, the battery pack is fixed to the frame 31, and the bottom of the battery pack is exposed to the impact ball 13.

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 including have the passageway guide cylinder, swing joint in bracket in the passageway of guide cylinder, locate impact ball in the passageway of guide cylinder and be used for connecting driving motor's output with the drive mechanism of bracket, the bracket in driving motor's drive is relative along vertical direction down the guide cylinder reciprocates.

2. The cyclic ball impact testing device according to claim 1, wherein: the guide cylinder comprises a cylinder body and supporting legs arranged on the outer side of the cylinder body.

3. The cyclic ball impact testing device according to claim 2, wherein: the guide cylinder also comprises a guide frame which is arranged at the bottom of the cylinder body and used for guiding the bracket.

4. The cyclic ball impact testing device according to claim 3, wherein: the guide frame comprises a main body connected with the cylinder body and a support connected with the main body and parallel to the horizontal plane; the bracket comprises a supporting part arranged in the channel of the barrel body and a connecting part which extends outwards from the supporting part and is used for connecting the transmission mechanism, and a guide structure used for guiding the connecting part is arranged on the support.

5. The cyclic ball impact testing device according to claim 4, wherein: the guide structure is a plurality of guide clamping grooves formed in the support.

6. The cyclic ball impact testing device according to claim 4, wherein: the transmission mechanism comprises a first connecting rod hinged to the output end of the driving motor and a second connecting rod, one end of the second connecting rod is hinged to the first connecting rod, and the other end of the second connecting rod is hinged to the connecting portion.

7. The cyclic ball impact testing device according to claim 6, wherein: the transmission mechanism comprises a main body, a plurality of brackets, a plurality of balance rods and a transmission mechanism, wherein the number of the brackets is at least two, the brackets are arranged side by side along the extending direction of the main body, one end of each balance rod is connected to the connecting part of one bracket in a sliding mode, the other end of each balance rod is connected to the connecting part of the adjacent bracket in a sliding mode, and the middle of each balance rod is hinged to the support.

8. The cyclic ball impact testing device according to claim 7, wherein: the end part of the balancing rod is provided with symmetrically arranged sliding grooves.

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 fixing frame comprises a frame for placing the battery pack and fixing feet arranged at each top corner of the frame, and the bottom end face of the frame is higher than the top end face of the guide cylinder.