Battery explosion-proof impact test device

Abstract

The utility model relates to the technical field of battery test equipment and discloses a battery explosion-proof impact test device which comprises a test box, a box door is hinged to the front face of the test box, a partition plate is fixedly connected to the interior of the test box, a polished rod is connected to the lower surface of the partition plate through a bolt, and a sliding sleeve is slidably connected to the outer surface of the polished rod. A connecting rod is fixedly connected to the outer wall of the sliding sleeve, a heavy hammer is fixedly connected to one end of the connecting rod, a suspender is fixedly connected to the center of the top face of the heavy hammer, and a steel wire rope is tied to the top end of the suspender. Testing precision and consistency are improved through a precise mechanical structure, the sliding sleeve is matched with the polish rod through a ball structure, falling resistance of the heavy hammer is remarkably reduced, the electric push rod is matched to control clutch of the gear ring, and it is ensured that the heavy hammer vertically impacts a battery; the combined design of the steel ruler and the pointer realizes the accurate calibration of the lifting height, ensures the consistency of impact energy each time, provides reliable data support for the explosion-proof performance evaluation of the battery, and enhances the scientificity and comparability of the test result.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery test equipment technical field, concretely is a battery explosion -proof impact test device. BACKGROUND

[0002] In the battery research and development and production process, need to carry out strict test to each performance of battery, and the battery explosion -proof impact test device is the key equipment for simulating battery when suffering external impact, and the key equipment for testing its explosion -proof performance. It applies different degree of impact force to the battery through specific mechanical structure or other ways, so as to evaluate whether the battery can effectively prevent the occurrence of internal explosion under the impact environment, and ensure the safety of the battery in actual use.

[0003] According to the search, the patent literature of China, the announcement number is: CN203929351U, discloses a kind of battery explosion -proof impact test device. Before test, weight is inserted into the hole of weight fixed plate, then cylinder is extended, and the U-shaped opening of weight insertion plate is inserted into the slot of weight pull rod, clamps weight, and then raises weight clamping mechanism. Then according to the size of battery, the distance of jaw is adjusted symmetrically, then the clamping bolt is adjusted to clamp battery, then steel column is placed into steel column positioning frame, so that steel column is on the upper surface of battery center. According to test requirement, weight is raised to specified height, then cylinder is retracted, and weight is released, so that weight freely falls to the steel column above battery center, and impact test is completed.

[0004] But the test device in actual use process needs manual weight to be inserted into weight fixed plate, and after test, weight is picked up again to be inserted into weight fixed plate, so that next test can be carried out, overall structure is not convenient to operate, and it is laborious and time -consuming. Utility model content

[0005] (1) technical problem solved

[0006] In view of the deficiencies of prior art, the utility model provides a kind of battery explosion -proof impact test device, with simple operation, and impact energy is changed by adjusting weight height, and the best test condition can be set for each battery, reduce the result deviation due to unreasonable condition, and the advantages such as real reflection battery explosion -proof performance are solved, and the above technical problems are solved.

[0007] (2) technical scheme

[0008] In order to achieve the above object, the utility model provides the following technical scheme: a battery explosion -proof impact test device, including the test box, the front of test box is hinged with the box door, the inside fixedly connected with the partition of test box, the lower surface of partition is connected with the light pole through bolt, the outer surface of light pole is connected with the sliding sleeve of sliding connection, the outer wall of sliding sleeve is fixedly connected with the connecting rod, one end of connecting rod is fixedly connected with the weight, the top surface center of weight is fixedly connected with the derrick, the top end of derrick is tied with the steel wire rope, the top surface of partition is equipped with two side plates, the rotation is connected with the reel between two side plates, one end of reel is fixedly connected with the gear ring no.

[0009] Preferably, the front of the box door is provided with an observation window, and the side of the box door is provided with a door handle, and the test box and the box door are connected with an explosion-proof chain.

[0010] Preferably, the back of the test box is provided with a smoke exhaust port, and the inside of the smoke exhaust port is provided with an exhaust fan, and the back of the test box is provided with a pressure relief valve.

[0011] Preferably, the inside bottom of the test box is welded with an angle column, the top of the angle column is welded with a storage plate, and the inside bottom of the test box and the partition are connected with two groups of light poles through bolts.

[0012] Preferably, the front of the test box is provided with a control button near the top, the top of the partition is provided with a servo motor, and the output shaft of the servo motor is connected with the rotating rod.

[0013] Preferably, the output end of the electric push rod is connected with the shaft seat, and the other end of the electric push rod is connected to the outer wall of one of the side plates, the sliding sleeve comprises an outer sheath, the top end and the bottom end of the outer sheath are embedded with two semicircular rings, the two semicircular rings are connected through screws, and the inner surfaces of the two semicircular rings are rollingly connected with a plurality of rolling balls arranged around the shaft center, and the rolling balls are in sliding contact with the light pole.

[0014] Preferably, the top surface of the partition is provided with a through hole through which the steel wire rope passes, the end of the steel wire rope away from the derrick is wound on the outer circumferential surface of the reel, the inside of the test box is welded with an ear block, and the outer surface of the ear block is connected with a steel ruler through screws.

[0015] Compared with the prior art, the utility model provides a battery explosion -proof impact test device, which has the following beneficial effects:

[0016] The utility model discloses a precise mechanical structure promotes the test precision and consistency, and the sliding sleeve adopts the ball structure and the cooperation of polished rod, and the resistance of heavy hammer falling is reduced obviously, and the gear ring clutch is controlled with electric push rod, and the vertical impact of heavy hammer on battery is ensured, the accurate calibration of the height of promotion is realized by the combination design of steel ruler and pointer, the scientificity and comparability of test result are enhanced for the reliable data support of battery explosion -proof performance evaluation, and the scientificity and comparability of test result are enhanced for the reliable data support of battery explosion -proof performance evaluation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure of the utility model three -dimensional schematic diagram;

[0018] Figure 2 It is the structure of the utility model back schematic diagram;

[0019] Figure 3 It is the structure of the utility model front schematic diagram after removing the door of box;

[0020] Figure 4 It is the structure of the utility model three -dimensional schematic diagram of heavy hammer, connecting rod and sliding sleeve;

[0021] Figure 5 It is the structure of the utility model three -dimensional schematic diagram of reel, servo motor and heavy hammer etc.

[0022] Figure 6 It is the structure of the utility model Figure 4 The partial enlarged schematic diagram of A in the structure of the utility model.

[0023] 1, test box;2, door;3, partition;4, polished rod;5, sliding sleeve;51, outer sheath;52, semicircular ring body;53, ball;6, connecting rod;7, heavy hammer;8, suspender;9, steel wire rope;10, side plate;11, reel;12, gear ring one;13, gear ring two;14, sleeve;15, rotating rod;16, servo motor;17, axle seat;18, electric push rod;19, guide rail;20, observation window;21, smoke outlet;22, pressure relief valve;23, object plate;24, ear block;25, steel ruler;26, exhaust fan. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the range of the utility model protection.

[0025] Please refer to Figures 1-6The utility model relates to a battery explosion-proof impact test device, including test box 1, the front of test box 1 is hinged with box door 2, and the inside of test box 1 is fixedly connected with the partition 3, the lower surface of partition 3 is connected with the light pole 4 through bolt, the outer surface of light pole 4 is slidably connected with the sliding sleeve 5, the outer wall of sliding sleeve 5 is fixedly connected with the connecting rod 6, one end of connecting rod 6 is fixedly connected with the weight 7, the top surface center of weight 7 is fixedly connected with the derrick 8, the top end of derrick 8 is tied with the steel wire rope 9, the top surface of partition 3 is installed with two side plates 10, and the rotationally connected with the reel 11 between two side plates 10, one end of reel 11 is fixedly connected with the gear ring one 12, and the gear ring one 12 is connected with the gear ring two 13, the end surface of gear ring two 13 is fixedly connected with the sleeve 14, the sleeve 14 is connected with the rotating rod 15 in the sleeve 14, one end of rotating rod 15 is connected with the servo motor 16, the outer surface of sleeve 14 is rotatably connected with the shaft seat 17, the outer surface of shaft seat 17 is connected with the electric push rod 18, and the top surface of partition 3 is connected with the guide rail 19 through bolt.

[0026] Specifically, the front of the box door 2 is provided with an observation window 20, and the side of the box door 2 is provided with a door handle, and the test box 1 and the box door 2 are connected with an explosion-proof chain.

[0027] Specifically, the back of the test box 1 is provided with a smoke outlet 21, and the inside of the smoke outlet 21 is provided with an exhaust fan 26, and the back of the test box 1 is provided with a pressure relief valve 22.

[0028] The advantages are that the observation window 20 is provided to facilitate the operator to monitor the test process in real time without opening the box door 2, reducing the operation risk; if the battery explodes during the test, the explosion-proof chain restrains the box door 2 when the battery explodes to prevent it from being rushed open and causing debris to splash; the smoke outlet 21 cooperates with the exhaust fan 26 to timely discharge harmful smoke and gas generated during the test, ensuring environmental safety; the pressure relief valve 22 automatically opens to release pressure when the pressure in the test box 1 rises suddenly, avoiding damage due to overpressure.

[0029] Specifically, the inside bottom of the test box 1 is welded with an angle column, the top of the angle column is welded with a storage plate 23, and the inside bottom of the test box 1 and the partition 3 are connected by two groups of light poles 4 through bolts.

[0030] Specifically, the front of the test box 1 is provided with a control button near the top, the top of the partition 3 is provided with a servo motor 16, and the output shaft of the servo motor 16 is connected with the rotating rod 15.

[0031] The advantage is that the control button is provided with a plurality of, which is used for controlling the start and stop of the servo motor 16 and the electric push rod 18, when the servo motor 16 is started to drive the rotating rod 15 to rotate, the sleeve 14 is driven to rotate by the rotating rod 15, the gear ring two 13 is driven to rotate by the sleeve 14, the gear ring one 12 is driven to rotate by the gear ring two 13, the reel 11 is driven to rotate by the gear ring one 12, the steel wire rope 9 is wound by the reel 11, the boom 8 is driven to rise by the steel wire rope 9, and the weight 7 is driven to rise by the boom 8, so as to prepare for the battery explosion-proof impact.

[0032] Specifically, the output end of the electric push rod 18 is connected to the shaft seat 17, and the other end of the electric push rod 18 is connected to the outer wall of one of the side plates 10, the sliding sleeve 5 comprises an outer sheath 51, the top end and the bottom end of the outer sheath 51 are embedded in two semicircular ring bodies 52, the two semicircular ring bodies 52 are connected by screws, and the inner surfaces of the two semicircular ring bodies 52 are rollingly connected with a plurality of rolling balls 53 arranged around the axis, and the rolling balls 53 are in sliding contact with the light rod 4.

[0033] The advantage is that when the weight 7 rises to a specified height, the electric push rod 18 is started to drive the shaft seat 17 to move, the shaft seat 17 drives the sleeve 14 to move, the sleeve 14 drives the gear ring two 13 to disengage from the gear ring one 12, so that the reel 11 loses the constraint, and the weight 7 automatically falls under the action of gravity, the sliding sleeve 5 in the process of falling, the rolling balls 53 in the sliding sleeve 5 are attached to the outer surface of the light rod 4 to reduce the sliding resistance, the sliding sleeve 5 cooperates with the light rod 4 and the connecting rod 6 to guide the falling direction of the weight 7, and the weight 7 can impact on the battery, and the explosion-proof performance of the battery is determined by observing whether the battery leaks.

[0034] Specifically, the top surface of the partition plate 3 is provided with a through hole through which the steel wire rope 9 passes, one end of the steel wire rope 9 away from the boom 8 is wound on the outer circumferential surface of the reel 11, and the inner side of the test box 1 is welded with an ear block 24, and the outer surface of the ear block 24 is connected with a steel ruler 25 through screws.

[0035] The advantage is that one of the outer sheaths 51 of the sliding sleeves 5 is provided with a pointer, the pointer points to the steel ruler 25, and the main function of the steel ruler 25 is to assist in accurately measuring the lifting height of the weight 7, and the controllability and consistency of the impact force during the test are ensured.

[0036] In use, first, the battery to be tested is placed on the placing plate 23 in the test box 1, the servo motor 16 is started by the control button, the sleeve 14 is driven to rotate by the rotating rod 15, the reel 11 is wound by the meshing transmission of the gear ring two 13 and the gear ring one 12 to drive the steel wire rope 9, the weight 7 is lifted to the preset height marked by the steel ruler 25 along the light pole 4; then the electric push rod 18 is started to push the shaft seat 17 to translate, the gear ring two 13 and the gear ring one 12 are disengaged, the reel 11 is released, at this time, the weight 7 freely falls under the action of gravity, the slide sleeve 5 is guided to impact the battery along the light pole 4 by the connecting rod 6, the ball 53 in the slide sleeve 5 reduces the friction to ensure the impact direction is accurate; the test process is monitored in real time through the observation window 20, the explosion-proof chain prevents the box door 2 from being blown open, the exhaust fan 26 of the smoke outlet 21 exhausts harmful gas, the pressure relief valve 22 is automatically opened when the pressure is too high; after the test is completed, the weight 7 is reset by the control button and the battery leakage is recorded to determine the explosion-proof performance.

[0037] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be changed, modified, replaced and varied in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A battery explosion-proof impact test device, comprising a test box (1), a box door (2) is hinged to the front of the test box (1), characterized in that: The inside of test box (1) is fixedly connected with partition plate (3), the lower surface of partition plate (3) is connected with light rod (4) through bolt, the outer surface of light rod (4) is slidably connected with sliding sleeve (5), the outer wall of sliding sleeve (5) is fixedly connected with connecting rod (6), one end of connecting rod (6) is fixedly connected with heavy hammer (7), the top surface center of heavy hammer (7) is fixedly connected with suspender (8), the top end of suspender (8) is tied with steel wire rope (9), the top surface of partition plate (3) is installed with two side plates (10), the rotationally connected with winding wheel (11) between two side plates (10), one end of winding wheel (11) is fixedly connected with gear ring one (12), gear ring one (12) is meshingly connected with gear ring two (13), the end surface of gear ring two (13) is fixedly connected with sleeve (14), sleeve (14) is clamped with rotating rod (15) in, one end of rotating rod (15) is connected with servo motor (16), the outer surface of sleeve (14) is rotatably connected with shaft seat (17), the outer surface of shaft seat (17) is connected with electric push rod (18), the top surface of partition plate (3) is connected with guide rail (19) through bolt.

2. The battery explosion-proof impact test device according to claim 1, characterized in that: The front surface of box door (2) is installed with observation window (20), and the side surface of box door (2) is installed with door handle, the test box (1) is connected with explosion-proof chain between box door (2).

3. The battery explosion-proof impact test device according to claim 1, characterized in that: The back surface of test box (1) is provided with smoke outlet (21), the inside of smoke outlet (21) is installed with exhaust fan (26), and the back surface of test box (1) is installed with pressure relief valve (22).

4. The battery explosion-proof impact test device according to claim 1, characterized in that: The inside bottom surface of test box (1) is welded with angle column, the top of angle column is welded with storage plate (23), the inside bottom surface of test box (1) and partition plate (3) are connected with two groups of light rods (4) through bolt.

5. The battery explosion-proof impact test device according to claim 1, characterized in that: The front surface of test box (1) is installed with control button near the top, the top of partition plate (3) is installed with servo motor (16), the output shaft of servo motor (16) is connected with rotating rod (15).

6. The battery explosion-proof impact test device according to claim 1, characterized in that: The output end of electric push rod (18) is connected with shaft seat (17), and the other end of electric push rod (18) is connected to the outer wall of one of side plates (10), the sliding sleeve (5) comprises an outer sheath (51), the top end and the bottom end of the outer sheath (51) are embedded with two semicircular ring bodies (52), the two semicircular ring bodies (52) are connected by screws, and the inner surfaces of the two semicircular ring bodies (52) are rollingly connected with a plurality of rolling balls (53) arranged around the shaft center, the rolling balls (53) are in sliding contact with the light rod (4).

7. The battery explosion-proof impact test device according to claim 1, characterized in that: The top surface of partition plate (3) is provided with through hole for steel wire rope (9) to pass through, the end of steel wire rope (9) away from suspender (8) is wound on the outer circumferential surface of winding wheel (11), the inside of test box (1) is welded with ear block (24), the outer surface of ear block (24) is connected with steel ruler (25) through screw.

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