CN114252203A - New energy automobile battery case shell gas tightness detection device - Google Patents
New energy automobile battery case shell gas tightness detection device Download PDFInfo
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- CN114252203A CN114252203A CN202111489201.9A CN202111489201A CN114252203A CN 114252203 A CN114252203 A CN 114252203A CN 202111489201 A CN202111489201 A CN 202111489201A CN 114252203 A CN114252203 A CN 114252203A
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- battery box
- lifting
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- limiting
- new energy
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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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
- G01M3/10—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for containers, e.g. radiators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention is suitable for the technical field of detection devices, and provides a new energy automobile battery box shell air tightness detection device, which comprises: the cistern, it has water liquid to fill in, eccentric drive assembly, lifting unit, the spacing subassembly of direction, adjusting part, the loading board, its swing joint in on the adjusting part, place the battery case that detects on it, and, the air supply, the battery case that will detect detects is put on the loading board, first motor is behind the switch-on external power supply, its output can drive eccentric drive assembly and carry out eccentric rotation, the lifting unit who is connected with eccentric drive assembly can drive the lifter plate of bottom and carry out the lifting reciprocating motion, the lifting motion control that utilizes the lifter plate is connected adjusting part with it and removes towards the water liquid in the cistern, utilize the air supply to fill compressed air in towards the battery box, immerse in the water liquid when the battery case, if the battery case seals well, then the seepage can not appear in its compressed air, the bubble can not appear on the water liquid surface.
Description
Technical Field
The invention belongs to the technical field of detection devices, and particularly relates to a device for detecting the air tightness of a battery box shell of a new energy automobile.
Background
With the development of electric vehicles, a power battery pack is used as a core component of a pure electric vehicle, the safety of the battery pack is gradually highlighted, the safety of the whole vehicle is directly affected, various factors need to be fully considered in the development of the battery pack, advanced technical experiences at home and abroad need to be learned and absorbed, and a design scheme is repeatedly verified and optimized, so that the design requirements on strength, rigidity, heat dissipation, water resistance, insulation and the like of a battery box body are high, the design and the tightness test of the battery box body are very important, and the sealing test of the battery box body and a core body of a small pure electric vehicle is particularly important.
In a traditional test scheme, the output voltage of a power battery pack of a pure electric vehicle is up to more than 200 volts, and a battery box body ensures that batteries are contained and also effectively isolates the contact between an operator and a passenger and the batteries; the battery box body must be sealed and waterproof, so that the short circuit caused by water inflow is prevented, and the protection grade of the battery box body is required to reach IP 67.
The traditional detection mode is to use observation and experience of operators to draw conclusions through manual detection, so that detection errors are easy to occur, and meanwhile, great labor cost is occupied.
Disclosure of Invention
The invention provides a device for detecting the air tightness of a battery box shell of a new energy automobile, and aims to solve the problems in the background technology.
The invention is realized in this way, a new energy automobile battery case shell airtightness detection device, comprising: a reservoir filled with water, an eccentric driving assembly vertically arranged at the top of one side of the reservoir, a lifting assembly, which is detachably and movably connected to the eccentric driving component and can realize reciprocating lifting adjustment along the motion of the eccentric driving component, a guide limiting component, which are respectively and symmetrically arranged at two sides of the lifting component, the bottom of which is fixedly connected with the top of the reservoir and is positioned at the inner side of the eccentric driving component, which is used for guiding and limiting the reciprocating lifting motion of the lifting component, an adjusting component which is arranged on the lifting component and movably extends into the water storage tank, a bearing plate, which is movably connected on the adjusting component and is provided with a battery box to be detected and an air source, which is arranged on the eccentric driving component and is used for conveying compressed air into the battery box.
Preferably, the eccentric drive assembly comprises: two parallels erect set up in the pillar at cistern top, two equal rigid coupling has the installation piece on the terminal surface that the pillar is close to mutually, every all rotate in the installation piece and be connected with the pivot, two the one end that the pivot is close to all runs through the correspondence the terminal surface of installation piece, and the off-centre between the two is provided with the connecting axle, the both sides of connecting axle are provided with the connecting plate respectively, two the same side tip of connecting plate with rigid coupling between the tip of connecting axle, and opposite side tip and corresponding rigid coupling between the tip of pivot, one side the outside rigid coupling of pillar has first motor, and its output extends to and corresponds in the installation piece, and with the correspondence the tip fixed connection of pivot.
Preferably, the lifting assembly comprises: the clamping device comprises a first clamping block and a second clamping block, wherein the first clamping block is arranged at the top of the connecting shaft, the second clamping block is arranged at the bottom of the connecting shaft, arc-shaped grooves which are attached to the outer wall of the connecting shaft are respectively formed in the end faces, close to the first clamping block and the second clamping block, of the first clamping block and the second clamping block, extension blocks are integrally formed on the two end portions of the first clamping block and the second clamping block, the two extension blocks which are oppositely arranged are locked and fixed through locking bolts and nuts, a sleeve is fixedly connected to the bottom of the second clamping block, adjusting threads are arranged on the inner wall of the sleeve, an adjusting screw rod is contained in the sleeve and is in threaded connection with the adjusting threads, and a lifting plate is movably connected to the bottom end of the adjusting screw rod.
Preferably, a ball head accommodated in the lifting plate is fixedly installed at the bottom end of the adjusting screw, a through groove is formed in the top of the lifting plate, and the aperture of the through groove is smaller than the outer diameter of the ball head and larger than the outer diameter of the adjusting screw.
Preferably, the guide limiting assembly comprises: parallel set up in the lifter plate both sides, and be located two limiting plates between the pillar, two the limiting plate is close to all seted up first spacing groove along its direction of height on the terminal surface of lifter plate, and, two the second spacing groove has still all been seted up on the inner wall of first spacing groove, correspond on the both sides wall of lifter plate first spacing groove is provided with first stopper, and every equal fixed mounting on the outer wall of first stopper have with the second stopper of second spacing groove looks adaptation.
Preferably, the adjustment assembly comprises: the lifting plate is fixedly installed close to the installation plate on the side wall of the water storage tank, a transverse plate is vertically arranged on the outer wall of the installation plate, two connecting seats are symmetrically arranged on the installation plate below the transverse plate along the extending direction of the connecting seats, a shaft rod is connected between the two connecting seats in a rotating mode, the top end of the shaft rod extends to the position above the transverse plate, a rotating part is further arranged on the transverse plate and used for driving the shaft rod to rotate, an external thread is arranged on the outer wall of the shaft rod between the two connecting seats, a sliding block is connected onto the external thread in a meshed mode, and the bearing plate is welded onto the outer wall of the sliding block.
Preferably, the rotating member includes: the second motor is fixedly connected to the top of the transverse plate and located on one side of the shaft rod, a first driving wheel is sleeved on the output end of the second motor, a second driving wheel is sleeved on the outer wall of the top of the shaft rod, and a belt is connected between the first driving wheel and the second driving wheel in a driving mode.
Preferably, a guide rod is further fixedly connected between the two connecting seats on one side of the shaft rod, wherein the sliding block is sleeved outside the guide rod and is in sliding connection with the guide rod.
Preferably, the bearing plate is further provided with a clamping mechanism for clamping the battery box.
Preferably, the gas source comprises: and an air pump fixedly arranged on one side of the support column is communicated and fixed with a flexible hose on an airflow output port, wherein the flexible hose is used for charging compressed air into the battery box.
Compared with the prior art, the invention has the beneficial effects that: the invention discloses a device for detecting the air tightness of a battery box shell of a new energy automobile, which comprises the following steps:
put the battery case that will wait to detect on the loading board, then, first motor is behind switch-on external power supply, its output can drive eccentric drive assembly and carry out eccentric rotation, and simultaneously, the lifter that is connected with eccentric drive assembly can drive the lifter plate of bottom and carry out the reciprocating motion that goes up and down, thereby, the adjusting part that the lifter plate's lift motion control is connected with it removes towards the water liquid in the cistern, utilize the air supply to fill compressed air in towards the battery box, immerse in water liquid when the battery case, if the battery case is sealed good, then the seepage can not appear in its compressed air, the bubble can not appear on the water liquid surface, otherwise, if the battery case is sealed poor, then compressed air can flow along gap department, form the bubble on water liquid, thereby comparatively audio-visual confession staff observes.
The adjusting part can control the degree of depth that the battery case sinks to immerse the water liquid to can detect the sealing performance of battery case under different water pressures according to the pressure of different water depths.
The guide limiting assembly can perform guide control on the lifting reciprocation of the lifting plate, so that the lifting plate is prevented from deviating towards other directions, and the accuracy of subsequent air tightness detection is guaranteed.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a partial cross-sectional view of the eccentric drive assembly of the present invention in its entirety;
FIG. 3 is a schematic view of the lifting assembly of the present invention;
FIG. 4 is a schematic view of the mounting of the adjusting screw and the ball head in the present invention;
FIG. 5 is a top view of the guide and stop assembly of the present invention;
FIG. 6 is a front view of the adjustment assembly of the present invention;
FIG. 7 is a side view of an adjustment assembly of the present invention;
FIG. 8 is a schematic view of the sliding motion of the shaft and the slider in the present invention;
in the figure:
1. a reservoir;
2. an eccentric drive assembly; 21. a pillar; 22. mounting blocks; 23. a rotating shaft; 24. a connecting shaft; 25. a connecting plate; 26. a first motor;
3. a lifting assembly; 31. a first clamping block; 32. a second clamping block; 33. an arc-shaped slot; 34. an extension block; 35. a sleeve; 351. adjusting the screw thread; 36. adjusting the screw rod; 361. a ball head; 37. a lifting plate; 371. passing through a groove;
4. a guide limit component; 41. a limiting plate; 42. a first limit groove; 43. a second limit groove; 44. a first stopper; 45. a second limiting block;
5. an adjustment assembly; 51. mounting a plate; 52. a transverse plate; 53. a connecting seat; 54. a shaft lever; 541. an external thread; 55. a rotating member; 551. a second motor; 552. a first drive pulley; 553. a second transmission wheel; 554. a belt; 56. a slider; 57. a guide bar;
6. a carrier plate;
7. a gas source; 71. an air pump; 72. a flexible hose.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
Referring to fig. 1-2, the present invention provides a technical solution,
the utility model provides a new energy automobile battery case shell gas tightness detection device, includes: the water storage tank 1 is filled with water liquid, and the eccentric driving assembly 2 is vertically arranged at the top position of one side of the water storage tank 1;
the eccentric drive assembly 2 includes: two parallels erect the pillar 21 that sets up in 1 top of cistern, equal rigid coupling has installation piece 22 on the terminal surface of the top that two pillars 21 are close to mutually, all rotate in every installation piece 22 and be connected with pivot 23, the terminal surface that corresponds installation piece 22 is all run through to the one end that two pivot 23 are close to mutually, and the off-centre is provided with connecting axle 24 between the two, the both sides of connecting axle 24 are provided with connecting plate 25 respectively, two connecting plates 25 with rigid coupling between the tip of one side tip and connecting axle 24, and the rigid coupling between opposite side tip and the tip that corresponds pivot 23, the outside rigid coupling of one side pillar 21 has first motor 26, its output extends to in corresponding installation piece 22, and with the tip fixed connection who corresponds pivot 23.
Specifically, after first motor 26 switches on external power supply, its output can rotate in the perforation of seting up in the pillar 21 of one side, simultaneously, drive one side pivot 23 that is connected with it and rotate, the pivot 23 of this side can drive the connecting plate 25 that is connected and rotate, and then, connecting plate 25 drives connecting axle 24 and rotates, the connecting plate 25 and the pivot 23 of opposite side can driven follow and rotate in the installation piece 22 that corresponds, thereby connecting axle 24 can be under first motor 26's drive, do circumference eccentric rotation, realize the control to follow-up lifting unit 3, drive it and carry out lifting reciprocating.
In addition, for convenience of understanding, the two connecting plates 25 each have an a end and a B end, wherein the a ends of the two connecting plates 25 are fixedly connected to two ends of the connecting shaft 24, and the B ends are fixedly connected to the corresponding rotating shafts 23, so that the connecting shaft 24 can be driven to rotate eccentrically around the axis of the first motor 26.
It should be noted that, in this embodiment, the connecting positions of the two rotating shafts 23 and the corresponding mounting blocks 22 are both provided with bearings, and the friction force between the two rotating shafts can be reduced through the bearings, so that the flexibility of the rotating shafts 23 during rotation can be effectively ensured, and the situations of jamming and abrasion can be avoided.
It should be understood that, in order to ensure that the connection shaft 24 can stop when it is lifted to the top end and the bottom end, so as to detect the air tightness of the battery box in the water, it is preferable that the first motor 26 is a servo motor, and in other embodiments, the operator can control the connection shaft by using other types of motors, which is not limited herein.
Referring to fig. 1 and 3-5, the lifting assembly 3 is detachably and movably connected to the eccentric driving assembly 2, and can achieve reciprocating lifting adjustment along the movement of the eccentric driving assembly 2;
the lifting assembly 3 comprises: the clamping device comprises a first clamping block 31 arranged at the top of a connecting shaft 24, a second clamping block 32 arranged at the bottom of the connecting shaft 24, wherein arc-shaped grooves 33 attached to the outer wall of the connecting shaft 24 are respectively formed on the end surfaces, close to the first clamping block 31 and the second clamping block 32, of the first clamping block 31 and the second clamping block 32, extending blocks 34 are integrally formed on the two end portions of the first clamping block 31 and the second clamping block 32, each two extending blocks 34 which are oppositely arranged are locked and fixed through a locking bolt and a nut, a sleeve 35 is fixedly connected to the bottom of the second clamping block 32, an adjusting thread 351 is arranged on the inner wall of the sleeve 35, an adjusting screw 36 is arranged in the sleeve 35 and is in threaded connection with the adjusting thread 351, and a lifting plate 37 is movably connected to the bottom end of the adjusting screw 36;
the bottom end of the adjusting screw 36 is fixedly provided with a ball 361 accommodated in the lifting plate 37, the top of the lifting plate 37 is provided with a through groove 371, and the aperture of the through groove 371 is smaller than the outer diameter of the ball 361 and larger than the outer diameter of the adjusting screw 36.
Specifically, the outer wall of the connecting shaft 24 is respectively sleeved with a first clamping block 31 and a second clamping block 32 (the end faces of the first clamping block 31 and the second clamping block 32 with the arc-shaped grooves 33 are attached to the outer wall of the connecting shaft 24), preferably, the widths of the first clamping block 31 and the second clamping block 32 are consistent with the width of the connecting shaft 24, so as to ensure that the first clamping block 31 and the second clamping block 32 do not shake in the movement process of the eccentric driving assembly 2, meanwhile, in the embodiment, the extending blocks 34 are fixedly installed at the two end portions of the first clamping block 31 and the second clamping block 32, wherein a locking bolt penetrates through between the two extending blocks 34 at the same side of the first clamping block 31 and the second clamping block 32, and a nut is screwed on the threaded end of the locking bolt, and the purpose is to realize locking and fixing of the first clamping block 31 and the second clamping block 32 by using the locking bolt and the nut, the stability of the subsequent lifting component 3 during movement is ensured.
It should be noted that, a sleeve 35 is fixedly installed at the bottom of the second clamping block 32, an adjusting thread 351 is arranged on the inside of the sleeve along the height direction of the sleeve, and meanwhile, an adjusting screw 36 is detachably connected inside the sleeve 35, and the specific dismounting manner is as follows: the outer wall of the top end of the adjusting screw 36 is provided with a matching thread screwed with the adjusting thread 351, so that when the worker rotates the adjusting screw 36, the distance between the lifting plate 37 and the second clamping block 32 can be adjusted.
It should be understood that, in the present embodiment, the bottom of the adjusting screw 36 is movably mounted with a lifting plate 37, and the specific connection manner is as follows: the bottom installation of adjusting screw 36 is fixed with bulb 361, and simultaneously, this bulb 361 can hold in the inside of lifter plate 37, and simultaneously, the top of lifter plate 37 is seted up and is linked to its inside groove 371 of crossing, and the aperture of crossing groove 371 is less than the diameter of bulb 361, and aim at avoids bulb 361 to drop, and simultaneously, the aperture of crossing groove 371 is not less than adjusting screw 36's external diameter, and aim at makes things convenient for follow-up adjusting screw 36's normal lift swing.
Referring to fig. 1 and 5, the guiding and limiting assemblies 4 are respectively and symmetrically disposed at two sides of the lifting assembly 3, and the bottom of the guiding and limiting assemblies is fixedly connected to the top of the water reservoir 1, and is located at the inner side of the eccentric driving assembly 2, and is used for guiding and limiting the reciprocating lifting movement of the lifting assembly 3;
the spacing subassembly of direction 4 includes: parallel set up in lifter plate 37 both sides, and be located two limiting plates 41 between two pillars 21, first spacing groove 42 has all been seted up along its direction of height on two limiting plates 41 are close to lifter plate 37's the terminal surface, and, second spacing groove 43 has still all been seted up on two first spacing groove 42's the inner wall, it is provided with first stopper 44 to correspond first spacing groove 42 on lifter plate 37's the both sides wall, and equal fixed mounting has the second stopper 45 with second spacing groove 43 looks adaptation on every first stopper 44's the outer wall.
Specifically, lifter plate 37 is at the in-process that goes up and down, and the limiting plate 41 of both sides can carry out spacing direction to it to avoid its skew to predetermine the orbit of marcing, specifically be: the end parts of the two sides of the lifting plate 37 are respectively provided with a first limiting block 44 and a second limiting block 45, the adjacent end surfaces of the limiting plates 41 on the two sides are respectively provided with a first limiting groove 42 and a second limiting groove 43, the first limiting block 44 is accommodated in the first limiting groove 42, the second limiting block 45 is accommodated in the second limiting groove 43, and guide adjustment of the lifting plate 37 during lifting is realized through a double limiting fixing mode.
It should be noted that, in some embodiments, the first limiting groove 42 is a rectangular groove, the first limiting block 44 is a rectangular block, meanwhile, the second limiting groove 43 is a semicircular groove, and the second limiting block 45 is a semicircular block, in other embodiments, the sizes of the first limiting groove 42, the second limiting groove 43, the first limiting block 44, and the second limiting block 45 may be freely selected according to the actual requirement of the worker, and are not limited herein.
Referring to fig. 1 and 6-8, an adjusting assembly 5 is disposed on the lifting assembly 3 and movably extends into the water reservoir 1, and a bearing plate 6 is movably connected to the adjusting assembly 5 and is provided with a battery box to be detected;
the adjustment assembly 5 comprises: the mounting plate 51 is fixedly mounted on the lifting plate 37 and close to the side wall of the reservoir 1, a transverse plate 52 is vertically arranged on the outer wall of the mounting plate 51, two connecting seats 53 are symmetrically arranged on the mounting plate 51 below the transverse plate 52 along the extending direction of the mounting plate, a shaft rod 54 is rotatably connected between the two connecting seats 53, the top end of the shaft rod 54 extends to the upper side of the transverse plate 52, a rotating part 55 is further arranged on the transverse plate 52 and used for driving the shaft rod 54 to rotate, an external thread 541 is arranged on the outer wall of the shaft rod 54 between the two connecting seats 53, a sliding block 56 is screwed on the external thread 541 which is meshed with the external thread, and the bearing plate 6 is welded on the outer wall of the sliding block 56;
the rotating member 55 includes: a second motor 551 fixedly connected to the top of the transverse plate 52 and located at one side of the shaft rod 54, wherein the output end of the second motor 551 is sleeved with a first driving wheel 552, the outer wall of the top of the shaft rod 54 is sleeved with a second driving wheel 553, and a belt 554 is in transmission connection between the first driving wheel 552 and the second driving wheel 553;
the bearing plate 6 is further provided with a clamping mechanism for clamping the battery box.
Specifically, the staff places the battery case that will wait to detect on loading board 6, realize through the predetermined fixture on loading board 6 that the centre gripping of battery case is fixed, thereby avoid its follow-up phenomenon such as pine to appear, simultaneously, second motor 551 is after switching on external power supply, its output drives first drive wheel 552 and rotates, first drive wheel 552 drives the second drive wheel 553 of opposite side through the belt 554 that its transmission set up and rotates, second drive wheel 553 drives axostylus axostyle 54 and carries out synchronous rotation under the support of two connecting seats 53 in the rotation process, when axostylus axostyle 54 rotates, external screw thread 541 on its outer wall can drive slider 56 and carry out the altitude mixture control, and then, can adjust the degree of depth of loading board 6 in cistern 1, thereby can detect the gas tightness of battery case under different depth of water pressure.
In this embodiment, the second motor 551 may preferably adopt one of a servo motor, a stepping motor and a dc motor, and in other embodiments, the operator may adopt other types of motors to control, which is not limited herein.
As a supplement to the above embodiment, referring to fig. 7, a guide rod 57 is further fixed between the two connecting seats 53 on one side of the shaft 54, wherein the sliding block 56 is sleeved outside the guide rod 57 and is slidably connected with the guide rod 57.
Specifically, the guide rod 57 can guide and control the sliding of the sliding block 56, and the phenomena of dislocation, shaking and the like are avoided, so that the accuracy and the efficiency of a subsequent hermetic sealing test are further ensured.
Referring to fig. 1, an air source 7 is disposed on the eccentric driving assembly 2 and used for delivering compressed air into the battery box;
the gas source 7 includes: an air pump 71 fixedly mounted on one side of the pillar 21 is connected to and fixed with a flexible hose 72 at an air flow outlet, wherein the flexible hose 72 is used for charging compressed air into the battery box.
Specifically, the air pump 71 is started to deliver compressed air into the telescopic hose 72, then the telescopic hose 72 is used for blowing the compressed air into the battery box, and finally the battery box is sunk into the water reservoir 1, so that the air tightness detection of the battery box is realized.
The working principle and the using process of the invention are as follows: after the invention is installed:
utilize air supply 7 to blow in compressed air to the fixed battery case of centre gripping on the loading board 6, then, eccentric drive assembly 2 drives lifting unit 3 and carries out lift adjustment, and then, under the guide effect of direction spacing subassembly 4, drive adjusting part 5 sinks and soaks in cistern 1, through the height of adjusting loading board 6 on adjusting part 5, realizes detecting the gas tightness of battery case above that under the water pressure of the different degree of depth.
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 and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a new energy automobile battery case shell gas tightness detection device which characterized in that includes:
a reservoir (1) filled with water;
the eccentric driving assembly (2) is vertically arranged at the top position of one side of the water storage tank (1);
the lifting assembly (3) is detachably and movably connected to the eccentric driving assembly (2) and can realize reciprocating lifting adjustment along the movement of the eccentric driving assembly (2);
the guide limiting assemblies (4) are respectively and symmetrically arranged on two sides of the lifting assembly (3), the bottoms of the guide limiting assemblies are fixedly connected with the top of the reservoir (1), the guide limiting assemblies are positioned on the inner side of the eccentric driving assembly (2), and the guide limiting assemblies are used for guiding and limiting the reciprocating lifting motion of the lifting assembly (3);
the adjusting component (5) is arranged on the lifting component (3) and movably extends into the reservoir (1);
the bearing plate (6) is movably connected to the adjusting component (5), and a battery box to be detected is placed on the bearing plate; and the number of the first and second groups,
and the air source (7) is arranged on the eccentric driving assembly (2) and is used for conveying compressed air into the battery box.
2. The airtightness detection apparatus for battery box housings of new energy vehicles according to claim 1, wherein said eccentric drive unit (2) comprises:
two support columns (21) which are vertically arranged at the top of the water storage tank (1) in parallel;
mounting blocks (22) are fixedly connected to the end faces, close to the top, of the two support columns (21), and a rotating shaft (23) is rotatably connected to the inside of each mounting block (22);
one ends of the two rotating shafts (23) close to each other penetrate through the end faces of the corresponding mounting blocks (22), and a connecting shaft (24) is eccentrically arranged between the two ends;
two sides of the connecting shaft (24) are respectively provided with a connecting plate (25), the end part of the same side of the two connecting plates (25) is fixedly connected with the end part of the connecting shaft (24), and the end part of the other side of the same side of the two connecting plates is fixedly connected with the end part corresponding to the rotating shaft (23);
one side the outside rigid coupling of pillar (21) has first motor (26), and its output extends to and corresponds in installation piece (22), and with correspond the tip fixed connection of pivot (23).
3. The airtightness detection apparatus for battery box housings of new energy vehicles according to claim 2, wherein the lifting assembly (3) comprises:
a first clamping block (31) arranged on the top of the connecting shaft (24);
a second clamping block (32) arranged at the bottom of the connecting shaft (24);
the end surfaces of the first clamping block (31) and the second clamping block (32) close to each other are respectively provided with an arc-shaped groove (33) which is attached to the outer wall of the connecting shaft (24);
extension blocks (34) are integrally formed at two end parts of the first clamping block (31) and the second clamping block (32), and every two extension blocks (34) which are oppositely arranged are locked and fixed through a locking bolt and a nut;
the sleeve (35) is fixedly connected to the bottom of the second clamping block (32), and the inner wall of the sleeve is provided with an adjusting thread (351);
an adjusting screw rod (36) which is accommodated in the sleeve (35) and is in threaded connection with the adjusting thread (351);
and the lifting plate (37) is movably connected to the bottom end of the adjusting screw rod (36).
4. The device for detecting the airtightness of the battery box casing of the new energy automobile as claimed in claim 3, wherein a ball head (361) accommodated in the lifting plate (37) is fixedly mounted on the bottom end of the adjusting screw (36);
moreover, a through groove (371) is formed at the top of the lifting plate (37);
the aperture of the through groove (371) is smaller than the outer diameter of the ball head (361) and larger than the outer diameter of the adjusting screw rod (36).
5. The airtightness detection apparatus for battery box housings of new energy vehicles according to claim 4, wherein the guide limiting member (4) comprises:
two limiting plates (41) which are arranged on two sides of the lifting plate (37) in parallel and are positioned between the two support columns (21);
one end surfaces, close to the lifting plate (37), of the two limiting plates (41) are respectively provided with a first limiting groove (42) along the height direction;
moreover, the inner walls of the two first limiting grooves (42) are provided with second limiting grooves (43);
the two side walls of the lifting plate (37) are provided with first limiting blocks (44) corresponding to the first limiting grooves (42), and each outer wall of each first limiting block (44) is fixedly provided with a second limiting block (45) matched with the second limiting groove (43).
6. The airtightness detection apparatus for battery box housings of new energy vehicles according to claim 4, wherein said adjustment assembly (5) comprises:
a mounting plate (51) fixedly mounted on the lifting plate (37) close to the side wall of the reservoir (1);
a transverse plate (52) is vertically arranged on the outer wall of the mounting plate (51);
two connecting seats (53) are symmetrically arranged on the mounting plate (51) below the transverse plate (52) along the extending direction of the mounting plate, and a shaft lever (54) is rotatably connected between the two connecting seats (53);
the top end of the shaft rod (54) extends to the upper part of the transverse plate (52);
the transverse plate (52) is also provided with a rotating part (55) which is used for driving the shaft lever (54) to rotate;
the outer wall of the shaft lever (54) positioned between the two connecting seats (53) is provided with an external thread (541) which is engaged with a sliding block (56) in a threaded manner;
the bearing plate (6) is welded on the outer wall of the sliding block (56).
7. The airtightness detection apparatus for battery box housings of new energy vehicles according to claim 6, wherein said rotating member (55) comprises:
the second motor (551) is fixedly connected to the top of the transverse plate (52) and is positioned on one side of the shaft lever (54), and the output end of the second motor is sleeved with a first driving wheel (552);
a second driving wheel (553) is sleeved on the outer wall of the top of the shaft lever (54);
a belt (554) is in transmission connection between the first transmission wheel (552) and the second transmission wheel (553).
8. The airtightness detection device for the battery box casing of the new energy automobile as claimed in claim 7, wherein a guide rod (57) is further fixedly connected between the two connecting seats (53) located at one side of the shaft rod (54);
the sliding block (56) is sleeved on the outer side of the guide rod (57) and is in sliding connection with the guide rod (57).
9. The airtightness detection apparatus for battery box casing of new energy vehicle according to claim 8, wherein the support plate (6) is further provided with a clamping mechanism for clamping the battery box.
10. The airtightness detection apparatus for battery box housings of new energy vehicles according to claim 2, wherein said gas source (7) comprises:
an air pump (71) fixedly arranged on the pillar (21) at one side, and an air flow outlet of the air pump is communicated and fixed with a flexible hose (72);
wherein, the telescopic hose (72) is used for charging compressed air into the battery box.
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| CN114252203B (en) | 2023-07-04 |
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